CN108801773B - Special-shaped valve pressure on-line test system and test method - Google Patents

Special-shaped valve pressure on-line test system and test method Download PDF

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Publication number
CN108801773B
CN108801773B CN201810405675.2A CN201810405675A CN108801773B CN 108801773 B CN108801773 B CN 108801773B CN 201810405675 A CN201810405675 A CN 201810405675A CN 108801773 B CN108801773 B CN 108801773B
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pressure
valve
clamping
special
air
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CN108801773A (en
Inventor
李祚
梁桂海
王亮
俞涛
曹海平
毛升好
白金亮
顾涛
杜立剑
王春彦
刘玉帮
吕文成
刘小齐
盛哲
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Technical Monitoring Center of PetroChina Changqing Oilfield Co
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Technical Monitoring Center of PetroChina Changqing Oilfield Co
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02—Details
    • G01N3/04—Chucks
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2876—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
    • G01N3/12—Pressure testing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014—Type of force applied
    • G01N2203/0016—Tensile or compressive
    • G01N2203/0019—Compressive
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003—Generation of the force
    • G01N2203/0042—Pneumatic or hydraulic means
    • G01N2203/0048—Hydraulic means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Abstract

The invention discloses a special-shaped valve pressure on-line test system and a test method, wherein the test system comprises a rack, a clamping device, a water pressure test device, a pneumatic test device and a monitoring device, wherein the water pressure test device comprises a water supply mechanism, a pressurizing mechanism and a pressure relief mechanism; the method comprises the following steps: 1. preparing work before testing; 2. defining a special-shaped valve and determining a clamped area of the special-shaped valve; 3. clamping the special-shaped valve; 4. testing the strength and pressure of the valve; 5. testing the sealing pressure of the valve; 6. and (5) detaching and labeling the tested special-shaped valve. The valve strength pressure and valve sealing pressure testing device is reasonable in design, simple and convenient to use and operate, good in use effect, high in safety and accurate in testing, and valve strength pressure and valve sealing pressure testing of a plurality of special-shaped valves can be conveniently and rapidly finished.

Description

Special-shaped valve pressure on-line test system and test method
Technical Field
The invention belongs to the technical field of special-shaped valve tests, and particularly relates to a special-shaped valve pressure online test system and a special-shaped valve pressure online test method.
Background
The special-shaped valve is a common name of a valve with a small drift diameter and a complex shape, the nominal drift diameter of the special-shaped valve is DN 3-DN 40, and the nominal pressure of the special-shaped valve is 1.6-42.0 MPa. The special-shaped valve is an indispensable important part in ensuring the production and construction of the oil and gas field, ensures that the special-shaped valve can be well applied to the production and construction process of the harsher oil and gas field, detects the pressure of the special-shaped valve, and obtains the pressure of various special-shaped valves, so that the application environment of the special-shaped valve meets the self requirement of the special-shaped valve, and improves the ground engineering construction management of the oil and gas field. In the pressure test process of the special-shaped valve, if the special-shaped valve is not clamped and fixed, the special-shaped valve has the safety risk of flying out to hurt people in the test; and the special-shaped valve hand wheel is tight, if the special-shaped valve hand wheel is not clamped and fixed, the special-shaped valve is turned on or turned off by hand, so that the special-shaped valve hand wheel is very laborious, the labor intensity is high, and the testing efficiency is seriously affected. In addition, the strength pressure and the tightness pressure of the special-shaped valve are closely related to the mechanism, the size and the service condition of the special-shaped valve, and the whole structure of the special-shaped valve is ensured to be complete and undeformed when the pressure of the special-shaped valve is tested. In the special-shaped valve pressure test process, because of the problems of various special-shaped valves, complex shape and structure, small drift diameter and the like, the test is difficult, and a quick, efficient and accurate special-shaped valve pressure online test system is urgently needed to meet the requirement of quick test of the current large-batch special-shaped valves.
Disclosure of Invention
Aiming at the defects in the prior art, the technical problem to be solved by the invention is to provide the special-shaped valve pressure on-line test system which has the advantages of simple structure, reasonable design, simple and convenient use and operation, good use effect, high safety and strong practicability, and can simply, conveniently and rapidly complete the test process of the strength pressure and the sealing pressure of a plurality of special-shaped valves.
In order to solve the technical problems, the invention adopts the following technical scheme: an on-line test system for special-shaped valve pressure is characterized in that: the hydraulic pressure testing device comprises a frame, a clamping device for clamping a plurality of tested special-shaped valves, a hydraulic pressure testing device for testing valve strength and pressure of the tested special-shaped valves, an air pressure testing device for testing sealing pressure of the tested special-shaped valves, and a monitoring device for monitoring the clamping device, the hydraulic pressure testing device and the air pressure testing device, wherein the clamping device, the hydraulic pressure testing device and the air pressure testing device are all arranged on the frame, and a plurality of groups of liquid-passing quick connectors connected with the tested special-shaped valves and a plurality of groups of air-passing quick connectors connected with the tested special-shaped valves are arranged on the frame;
The clamping device comprises a pneumatic clamping device and a hydraulic clamping device, the pneumatic clamping device comprises a pneumatic clamping mechanism and a pneumatic clamping driving mechanism for driving the pneumatic clamping mechanism, the hydraulic clamping device comprises a hydraulic clamping mechanism and a hydraulic clamping driving mechanism for driving the hydraulic clamping mechanism, the number of the pneumatic clamping mechanisms is multiple, the number of the hydraulic clamping mechanisms is multiple, and the sum of the number of the pneumatic clamping mechanisms and the number of the hydraulic clamping mechanisms is the same as the number of the tested special-shaped valves;
the water pressure testing device comprises a water supply mechanism, a pressurizing mechanism and a pressure release mechanism, wherein the water supply mechanism comprises a water supply tank, a main water supply pipe connected with the water supply tank, a dispersing pipe connected with the main water supply pipe, a low-pressure branch water supply pipe and a high-pressure branch water supply pipe, the low-pressure branch water supply pipe and the high-pressure branch water supply pipe are connected with the dispersing pipe and are used for supplying water to a plurality of tested special-shaped valves, an isolating component is arranged at the inlet of the dispersing pipe and the inlet of the low-pressure branch water supply pipe, at least one of the low-pressure branch water supply pipe and the high-pressure branch water supply pipe is arranged at the inlet of the dispersing pipe, a low-pressure branch pressure maintaining component and a low-pressure branch water supply component are arranged on the low-pressure branch water supply pipe, a high-pressure branch pressure maintaining component and a high-pressure branch pressure releasing component are arranged at the outlet end of the low-pressure branch water supply pipe, a first water pressure detecting unit is arranged at the outlet end of the low-pressure branch water supply pipe, and a second water pressure detecting unit is arranged at the outlet end of the high-pressure branch water supply pipe;
The pressurizing mechanism comprises an air supply assembly, a proportional pressure regulating valve and a return pressure regulating valve for regulating the driving air pressure output by the air supply assembly, a first pneumatic pump, a second pneumatic pump and a pneumatic pump control assembly for controlling the first pneumatic pump and the second pneumatic pump, wherein the first pneumatic pump and the second pneumatic pump are used for pressurizing the hydraulic pressure in the main water supply pipe;
the air pressure testing device comprises a main air pipe and a plurality of branch air pipes connected with the outlets of the main air pipe, wherein a first air pressure detection unit is arranged on the main air pipe, a second air pressure detection unit is arranged on each branch air pipe, and a fifth electromagnetic valve is arranged on each branch air pipe;
each group of liquid-passing quick connectors comprises a first liquid-passing quick connector, a second liquid-passing quick connector and a standby liquid-passing quick connector, a liquid-passing joint electromagnetic valve is arranged on an air supply pipe for supplying air to each group of liquid-passing quick connectors by an air supply assembly, a liquid-passing joint electromagnetic valve is arranged on an air supply pipe for supplying air to each group of liquid-passing quick connectors by the air supply assembly, the first liquid-passing quick connectors are connected with the outlet end of a low-pressure branch water supply pipe and the outlet end of a high-pressure branch water supply pipe, and the first liquid-passing quick connectors are connected with the outlet ends of branch air pipes;
The monitoring device comprises a microcontroller, a parameter setting unit and a communication module which are respectively connected with the microcontroller, wherein the microcontroller is in data communication with an industrial personal computer through the communication module, the input end of the microcontroller is connected with a timer, a third air pressure detection unit for detecting the output pressure of the air supply assembly, a first clamping force detection unit for detecting the first clamping force between the pneumatic clamping mechanism and the tested special-shaped valve, a second clamping force detection unit for detecting the second clamping force between the hydraulic clamping mechanism and the tested special-shaped valve, and a first liquid level detection unit for detecting the liquid level in the water supply tank, the output end of the microcontroller is connected with an alarm, a water inlet electromagnetic valve for controlling water feeding to the water supply tank, a sixth electromagnetic valve for controlling the pneumatic clamping driving mechanism and a seventh electromagnetic valve for controlling the hydraulic clamping driving mechanism, the number of the sixth electromagnetic valve is the same as that of the pneumatic clamping mechanisms, the number of the seventh electromagnetic valve is the same as that of the hydraulic clamping mechanisms, and the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the fifth electromagnetic valve, the sixth electromagnetic valve, the seventh electromagnetic valve, the low-pressure branch pressure maintaining assembly, the high-pressure branch pressure maintaining assembly, the low-pressure branch pressure releasing assembly, the isolation assembly, the liquid through joint electromagnetic valve and the air through joint electromagnetic valve are controlled by the microcontroller.
The special-shaped valve pressure on-line test system is characterized in that: the pneumatic clamping driving mechanism is a clamping cylinder, the clamping cylinder comprises a cylinder body and a piston rod, one end of the piston rod extends out of the cylinder body, the pneumatic clamping mechanism comprises a fixed clamping plate fixedly connected with the cylinder body, and a movable clamping plate sleeved at one end of the piston rod and capable of approaching to or keeping away from the fixed clamping plate, the fixed clamping plate and the movable clamping plate are distributed in parallel relatively, and clamping blocks for clamping the tested special-shaped valve are arranged on opposite surfaces of the fixed clamping plate and the movable clamping plate; the device comprises a frame, a clamping main air supply pipe, a plurality of clamping branch air supply pipes, a clamping filter, a first clamping digital display meter, a first clamping mechanical pressure meter, a clamping proportional valve and a clamping safety valve, a first clamping pressure detection unit and a sixth electromagnetic valve, wherein the clamping air supply pipe is used for supplying air to a cylinder body, the clamping air supply pipe comprises a clamping main air supply pipe connected with a compressed air source and a plurality of clamping branch air supply pipes connected between the clamping main air supply pipe and the cylinder body, the clamping main air supply pipe is provided with the clamping filter, the first clamping digital display meter, the first clamping mechanical pressure meter, the clamping proportional valve and the clamping safety valve, the first clamping pressure detection unit is used for detecting the pressure in the clamping main air supply pipe, the sixth electromagnetic valves are respectively positioned on the clamping branch air supply pipes, the first clamping digital display meter is positioned on the frame, and the first clamping digital display meter and the first clamping pressure detection unit are connected with a microcontroller;
The hydraulic clamping driving mechanism comprises two symmetrically arranged hydraulic cylinders, the hydraulic clamping mechanism comprises two groups of clamping components which are respectively arranged on the two hydraulic cylinders, each group of clamping rod components comprises a plurality of clamping rods, one ends of the clamping rods can shrink or extend out of the hydraulic cylinders, and the clamping rods are distributed in multiple rows and multiple columns; the hydraulic oil supply system comprises a frame, a hydraulic cylinder, a hydraulic oil supply pipe, a clamping main oil supply pipe, a plurality of clamping branch oil supply pipes, a second liquid level detection unit and a microcontroller, wherein the hydraulic oil tank is used for supplying hydraulic oil to the hydraulic cylinder, the clamping main oil supply pipe is connected with the hydraulic cylinder, the clamping branch oil supply pipes are connected with the two hydraulic cylinders, a seventh electromagnetic valve is positioned on the clamping branch oil supply pipes, a hydraulic oil filter, a hydraulic oil stop valve, a hydraulic oil safety valve, an oil pump, a second clamping mechanical pressure gauge and an oil supply check valve are arranged on the clamping main oil supply pipe, a second clamping pressure detection unit is used for detecting the pressure in the clamping main oil supply pipe, a hydraulic lock is arranged on the clamping branch oil supply pipe, a second clamping digital display meter is arranged on the frame and used for displaying the pressure in the clamping main oil supply pipe, and an inlet of the hydraulic oil tank is provided with an oil inlet electromagnetic valve;
The main air pipe is provided with an airtight filtering voltage regulator, a main airtight digital display meter, an airtight pressure meter, an airtight safety valve and a pressure stabilizing tank, each branch air pipe is provided with an airtight filter and a branch airtight digital display meter, and the airtight filtering voltage regulator, the airtight filter and the branch airtight digital display meter are connected with the microcontroller.
The special-shaped valve pressure on-line test system is characterized in that: a buffer tube is arranged between the output end of the main water supply pipe and the dispersing tube, and a main stop valve, a first filter and a first safety valve are sequentially arranged on the main water supply pipe along the liquid flowing direction;
the low-pressure branch water supply assembly comprises a second filter, a second safety valve, a first manual unloading valve and a first mechanical pressure gauge, the second filter, the second safety valve, the first manual unloading valve and the first mechanical pressure gauge are arranged on the low-pressure branch water supply pipe in sequence along the liquid flowing direction, the high-pressure branch water supply assembly comprises a third water pressure detection unit, a second mechanical pressure gauge, a third safety valve, a third filter, a second manual unloading valve and a third mechanical pressure gauge, the low-pressure digital display meter for displaying the water pressure at the outlet end of the low-pressure branch water supply pipe, the high-pressure outlet digital display meter for displaying the water pressure at the outlet end of the high-pressure branch water supply pipe and the high-pressure inlet digital display meter for displaying the water pressure at the inlet end of the high-pressure branch water supply pipe are arranged on the high-pressure branch water supply pipe in sequence along the liquid flowing direction, and the low-pressure digital display meter, the high-pressure outlet digital display meter and the high-pressure outlet digital display meter are controlled by the microcontroller and are connected with the microcontroller;
The low-pressure branch pressure maintaining component is located between the dispersing pipe and the second filter, and the high-pressure branch pressure maintaining component is located between the third safety valve and the third filter.
The special-shaped valve pressure on-line test system is characterized in that: the low-pressure branch pressure maintaining assembly comprises a low-pressure branch pressure maintaining pneumatic control valve and a first pressure maintaining electromagnetic valve arranged on an air supply pipe for supplying air to the low-pressure branch pressure maintaining pneumatic control valve by the air supply assembly, the low-pressure branch pressure maintaining pneumatic control valve is positioned on the low-pressure branch water supply pipe, and the low-pressure branch pressure maintaining pneumatic control valve is a normally closed pneumatic control valve; the low-pressure branch pressure relief assembly comprises a first water drain pipe connected with the outlet end of the low-pressure branch water supply pipe, a low-pressure branch pressure relief pneumatic control valve arranged on the first water drain pipe and a first pressure relief electromagnetic valve arranged on an air supply pipe for supplying air to the low-pressure branch pressure relief pneumatic control valve by the air supply assembly, the outlet end of the first water drain pipe is connected with a water supply tank, the low-pressure branch pressure relief pneumatic control valve is a normally open pneumatic control valve, and the first pressure maintaining electromagnetic valve and the first pressure relief electromagnetic valve are controlled by the microcontroller;
the high-pressure branch pressure maintaining assembly comprises a high-pressure branch pressure maintaining pneumatic control valve and a second pressure maintaining electromagnetic valve arranged on an air supply pipe for supplying air to the high-pressure branch pressure maintaining pneumatic control valve by the air supply assembly, the high-pressure branch pressure maintaining pneumatic control valve is positioned on the high-pressure branch water supply pipe, and the high-pressure branch pressure maintaining pneumatic control valve is a normally closed pneumatic control valve; the high-pressure branch pressure relief assembly comprises a second water drain pipe connected with the outlet end of the high-pressure branch water supply pipe, a high-pressure branch pressure relief pneumatic control valve arranged on the second water drain pipe and a second pressure relief electromagnetic valve arranged on an air supply pipe for supplying air to the high-pressure branch pressure relief pneumatic control valve by the air supply assembly, the outlet end of the second water drain pipe is connected with a water supply tank, and the high-pressure branch pressure relief pneumatic control valve is a normally open pneumatic control valve;
The isolation assembly comprises isolation pneumatic control valves arranged on the dispersing pipes and positioned at the inlets of the low-pressure branch water supply pipes, and isolation control electromagnetic valves arranged on the air supply pipes, which are used for supplying air to the isolation pneumatic control valves, of the air supply assembly, the isolation control electromagnetic valves are normally closed pneumatic control valves, and the second pressure maintaining electromagnetic valves, the second pressure relief electromagnetic valves and the isolation control electromagnetic valves are controlled and connected by the microcontroller.
The special-shaped valve pressure on-line test system is characterized in that: the main water supply pipe comprises a first main water supply pipe connected between the water supply tank and the first pneumatic pump, a second main water supply pipe connected between the first pneumatic pump and the second pneumatic pump and a third main water supply pipe connected between the second pneumatic pump and the buffer pipe, the main stop valve and the first filter are positioned on the first main water supply pipe, one end of the first main water supply pipe is connected with an outlet of the water supply tank, the other end of the first main water supply pipe is provided with a first one-way valve, one end of the second main water supply pipe is provided with a second one-way valve, the other end of the second main water supply pipe is provided with a third one-way valve, one end of the third main water supply pipe is provided with a fourth one-way valve, the first pneumatic pump is connected between the first one-way valve and the second one-way valve, the other end of the third main water supply pipe is connected with one end of the buffer pipe, and one end of the buffer pipe is connected with the dispersion pipe;
The inlet of supply tank is provided with the inlet tube, be provided with water filter on the inlet tube, water inlet solenoid valve is located on the inlet tube, the top of supply tank is provided with air cleaner, be provided with high liquid level warning line and low liquid level warning line in the supply tank, the bottom of supply tank is provided with the blow off pipe, be provided with the blowoff valve on the blow off pipe, first liquid level detection unit is located in the supply tank.
The special-shaped valve pressure on-line test system is characterized in that: the air supply assembly comprises a compressed air interface, a first pressurizing main air pipe connected with the compressed air interface and an air supply processing assembly arranged on the first pressurizing main air pipe, the output end of the air supply processing assembly is connected with a second pressurizing main air pipe and a third pressurizing main air pipe, the output end of the second pressurizing main air pipe is connected with a first driving air pipe and a second driving air pipe, the proportional pressure regulating valve is positioned on the first driving air pipe, the first driving air pipe is connected with an air inlet of a first air pump through a first pressurizing pipe, the first driving air pipe is connected with an air inlet of a second air pump through a second pressurizing pipe, the second driving air pipe is connected with an air outlet of the first air pump through a second return pipe, the return pressure regulating valve is positioned on the second driving air pipe, the third pressurizing main air pipe is respectively a first electromagnetic valve, a third electromagnetic valve, the low-pressure air supply pressure maintaining assembly, the low-pressure branch assembly, the high-pressure maintaining assembly and the low-pressure branch assembly are respectively positioned on the first electromagnetic valve, the second electromagnetic valve is positioned on the second return pressure regulating valve, and the second electromagnetic valve is positioned on the first return pressure valve;
The air source treatment assembly comprises a compressed air filter, a compressed air one-way valve and a pressure stabilizing tank.
Meanwhile, the invention also discloses a special-shaped valve pressure on-line test method which has the advantages of simple steps, reasonable design, convenient realization and good use effect, and is characterized in that: the method comprises the following steps:
step one, preparing work before testing:
step 101, checking the water pressure testing device and the air pressure testing device: checking the water pressure testing device and the air pressure testing device pipeline, determining that the water pressure testing device and the air pressure testing device pipeline are normal, powering up to initialize the water pressure testing device, the air pressure testing device and the monitoring device, and determining that all parts of the water pressure testing device and the air pressure testing device are normal;
step 102, connection of a compressed air source and addition of a test solution: connecting a compressed air source of 0.7MPa with the air supply assembly, connecting a water supply source with a water supply tank, sending a water adding instruction to a microcontroller through an industrial personal computer, and controlling a water inlet electromagnetic valve to be electrified by the microcontroller, and adding water into the water supply tank until a liquid level value detected by a first liquid level detection unit meets a preset liquid level set value;
Step two, defining a special-shaped valve and determining a clamped area of the special-shaped valve:
step 201, defining a special-shaped valve structure:
the special-shaped valve comprises a straight-through valve, a different-axis valve, an angle valve and a three-way valve, wherein the straight-through valve comprises a straight-through type a valve, a straight-through type b valve and a straight-through type c valve, the angle valve comprises an angle type a valve and an angle type b valve, and the three-way valve comprises a three-way type a valve and a three-way type b valve;
the straight-through type a valve consists of a first valve body and a first valve handle arranged on the first valve body, wherein the central lines of an inlet of the first valve body and an outlet of the first valve body are overlapped, the first valve body is provided with two straight-through a planes, the two straight-through a planes are opposite surfaces, and a first hand wheel is arranged on the first valve handle;
the straight-through type b valve consists of a second valve body, a second valve handle arranged on the second valve body and a sewage draining part arranged on the second valve body, wherein the central lines of an inlet of the second valve body and an outlet of the second valve body are overlapped, the second valve body is provided with a straight-through b plane, the second valve handle is provided with a regular polyhedron, and the second valve handle is provided with a second hand wheel;
The straight-through type c valve consists of a third valve body and a third valve handle arranged on the third valve body, wherein the center line of an inlet of the third valve body and the center line of an outlet of the third valve body are overlapped, the surface of the third valve body is an arc-shaped surface, and a third hand wheel is arranged on the third valve body;
the special-axis valve consists of a fourth valve body and two fourth valve handles arranged on the fourth valve body, wherein the central lines of an inlet of the fourth valve body and an outlet of the fourth valve body are arranged in parallel up and down, the fourth valve body is provided with two special-axis planes which are opposite, and a fourth hand wheel is arranged on the fourth valve body;
the angle type valve a consists of a fifth valve body and a fifth valve handle arranged on the fifth valve body, wherein the center lines of an inlet of the fifth valve body and an outlet of the fifth valve body are vertically distributed, the fifth valve body is provided with two angle type planes which are opposite, and a fifth hand wheel is arranged on the fifth valve body;
the angle type b valve consists of a sixth valve body and two sixth valve handles arranged on the sixth valve body, wherein the center lines of an inlet of the sixth valve body and an outlet of the sixth valve body are vertically distributed, and the sixth valve handles are provided with a sixth hand wheel and an angle type arc part;
The three-way type valve a consists of a seventh valve body and a seventh valve handle arranged on the seventh valve body, wherein an inlet of the seventh valve body and an outlet of the seventh valve body are not positioned on the same plane, the seventh valve body is provided with two three-way type a planes, the two three-way type a planes are opposite, and a seventh hand wheel is arranged on the seventh valve handle;
the three-way type b valve consists of an eighth valve body and an eighth valve handle arranged on the eighth valve body, wherein an inlet of the eighth valve body and an outlet of the eighth valve body are not positioned on the same plane, the eighth valve body is provided with two three-way type b planes, the two three-way type b planes are adjacent planes, and the eighth valve handle is provided with an eighth hand wheel and a three-way arc-shaped part;
step 202, determining clamped areas of the special-shaped valve:
according to the definition of the special-shaped valve structure in the step 201, judging the tested special-shaped valve:
when the measured special-shaped valve belongs to the straight-through type a valve, taking two straight-through type a planes as clamped areas;
when the measured special-shaped valve belongs to the straight-through type b valve, two opposite surfaces of the regular polyhedron are used as clamped areas;
when the valve to be tested belongs to the straight-through type c valve, the arc-shaped surface is used as a clamped area;
When the measured special-shaped valve belongs to the special-shaped valve, taking two special-shaped planes as clamped areas;
when the measured special-shaped valve belongs to the angle type a valve, taking two angle type planes as clamped areas;
when the valve to be tested belongs to the angle type b valve, taking the arc surface of the angle type arc part as a clamped area;
when the valve to be tested belongs to the three-way type a valve, taking the two three-way type a planes as clamped areas;
when the valve to be tested belongs to the valve in the three-way type b, taking the arc surface of the arc part of the three-way valve as a clamped area;
step three, clamping the special-shaped valve: clamping a plurality of measured special-shaped valves on the pneumatic clamping driving mechanism and the hydraulic clamping mechanism, wherein the clamping methods of the plurality of measured special-shaped valves clamped on the pneumatic clamping mechanism are the same, and the clamping methods of the plurality of measured special-shaped valves clamped on the hydraulic clamping mechanism are the same, wherein when any one measured special-shaped valve is clamped on the pneumatic clamping mechanism, the method comprises the following steps:
step A, setting a pneumatic clamping force set value of the measured special-shaped valve to an industrial personal computer through a parameter setting unit, and recording the pneumatic clamping force set value of the measured special-shaped valve as F by the industrial personal computer qs ；
Step B, the industrial personal computer is used for controlling the operation according to the formula
Figure BDA0001646782010000051
Obtaining a cylinder pressure set point P qs Storing the data in a data memory; wherein R represents the cylinder diameter of the cylinder body, and R represents the rod diameter of the piston rod;
step C, a side face of the clamped area in the tested special-shaped valve is contacted with a fixed clamping plate, a hydraulic clamping instruction is sent to a microcontroller through an industrial personal computer, the microcontroller controls a sixth electromagnetic valve to be electrified, and meanwhile, the microcontroller controls a clamping proportional valve to adjust the pressure in a clamping main air supply pipe to a cylinder pressure set value P qs The main air supply pipe is clamped to supply air to the rod cavity of the cylinder body, the piston rod in the cylinder body is contracted, and the piston rod is contracted to pull the movable clamping plate to move towards the fixed clamping plate along the horizontal direction, so that the movable clamping plate is contacted with the other side of the clamped area in the tested special-shaped valve, and the tested special-shaped valve is clamped;
when any valve to be tested is clamped on the hydraulic clamping mechanism, the method comprises the following steps:
setting a hydraulic cylinder pressure test value to an industrial personal computer through a parameter setting unit, placing a tested special-shaped valve between two hydraulic cylinders, sending a hydraulic clamping instruction to a microcontroller through the industrial personal computer, controlling a seventh electromagnetic valve to be electrified by the microcontroller, controlling an oil pump to adjust the hydraulic pressure in a clamping main oil supply pipe by the microcontroller, enabling the hydraulic oil pressure in the clamping main oil supply pipe to be equal to the hydraulic cylinder pressure test value, enabling the clamping main oil supply pipe and a clamping branch oil supply pipe to supply air to a rodless cavity of the hydraulic cylinder through the clamping main oil supply pipe and the clamping branch oil supply pipe, and enabling clamping rods in the hydraulic cylinders to extend, wherein N clamping rods are contacted with one side surface of a clamped area in the tested special-shaped valve, and the number of the clamping rods contacted with the clamped area is N, wherein N is a positive integer and N is not greater than the total number of the clamping rods; the other side surface of the clamped area is contacted with N clamping rods;
Step II, a hydraulic contraction instruction is sent to a microcontroller through an industrial personal computer, the microcontroller controls the seventh electromagnetic valve to be powered off, meanwhile, the microcontroller controls the oil pump to stop working, and the number N of clamping rods contacted with the clamped area is input to the industrial personal computer through a parameter setting unit;
step III, setting a hydraulic clamping force set value of the measured special-shaped valve to an industrial personal computer through a parameter setting unit, and recording the hydraulic clamping force set value of the measured special-shaped valve as F by the industrial personal computer ys ；
Step IV, the industrial personal computer is used for controlling the operation according to the formula
Figure BDA0001646782010000061
Obtaining a hydraulic pressure set point P ys Storing the data in a data memory; wherein D represents the diameter of each clamping rod in the hydraulic cylinder;
step V, placing the tested special-shaped valve between two hydraulic cylinders, sending a hydraulic clamping instruction to a microcontroller through an industrial personal computer, controlling a seventh electromagnetic valve to be electrified by the microcontroller, controlling an oil pump to adjust the hydraulic pressure in a clamping main oil supply pipe by the microcontroller, enabling the hydraulic oil pressure in the clamping main oil supply pipe to be equal to a hydraulic clamping force set value, feeding air to a rodless cavity of the hydraulic cylinder through the clamping main oil supply pipe and a clamping branch oil supply pipe, extending a clamping rod in the hydraulic cylinder, clamping the tested special-shaped valve, and locking a hydraulic lock;
Testing the valve strength and pressure:
step 401, connecting a liquid-passing quick connector with a valve of a measured abnormal shape:
step 4011, sending a liquid-passing quick connector air supply instruction to a microcontroller through an industrial personal computer, wherein the microcontroller controls a plurality of groups of liquid-passing quick connectors to be electrified, and the air supply assembly supplies air for each group of liquid-passing quick connectors;
step 4012, connecting a plurality of groups of liquid-passing quick connectors with a plurality of tested special-shaped valves respectively;
step 402, judging whether the valve strength and pressure test set values of the plurality of special-shaped valves to be tested are not more than 40MPa, and executing step 403 when the valve strength and pressure test set values of the plurality of special-shaped valves to be tested are not more than 40 MPa; executing step 404 when the valve strength pressure test set value of any tested special valve is greater than 40 MPa;
step 403, when the valve strength pressure test set values of the plurality of tested special-shaped valves are not greater than 40MPa, performing a low-pressure valve strength pressure test on the tested special-shaped valves, wherein the low-pressure valve strength pressure test methods on the plurality of tested special-shaped valves are the same, and the low-pressure valve strength pressure test method on any one of the tested special-shaped valves is as follows:
Step 4031, the microcontroller controls the isolation assembly to be in a power-off state, a first low-pressure regulating instruction is sent to the microcontroller through the industrial personal computer, the microcontroller controls the proportional pressure regulating valve and the return pressure regulating valve to regulate driving air pressure, then the microcontroller controls the first electromagnetic valve and the second electromagnetic valve to be electrified in a reciprocating mode, driving air is provided for the first pneumatic pump through the air supply assembly, the first pneumatic pump is started, and the measured special-shaped valve is filled with water rapidly;
step 4032, a second low-pressure regulating instruction is sent to a microcontroller through an industrial personal computer, the microcontroller controls the first electromagnetic valve and the second electromagnetic valve to be powered off, the first pneumatic pump stops working, the microcontroller controls the proportional pressure regulating valve and the return pressure regulating valve to regulate the driving air pressure, and then the microcontroller controls the third electromagnetic valve and the fourth electromagnetic valve to be powered on in a reciprocating mode, and the air supply assembly supplies driving air for the second pneumatic pump to enable the second pneumatic pump to be started;
step 4033, sending a third low-pressure regulating instruction to a microcontroller through an industrial personal computer, wherein the microcontroller regulates the driving air pressure to rise through a proportional pressure regulating valve and a return pressure regulating valve, so that the pressure at the outlet end of the low-pressure branch water supply pipe and the pressure at the outlet end of the high-pressure branch water supply pipe are equal to a preset low-pressure valve strength pressure test set value;
Step 4034, a low-pressure maintaining instruction is sent to a microcontroller through an industrial personal computer, the microcontroller controls the low-pressure branch pressure maintaining assembly to act, the low-pressure branch water supply pipe is in a pressure maintaining state, meanwhile, the microcontroller controls the high-pressure branch pressure maintaining assembly to act, the high-pressure branch water supply pipe is in a pressure maintaining state, when the low-pressure maintaining time preset by a timer is reached, a low-pressure relief instruction is sent to the microcontroller through the industrial personal computer, the microcontroller controls the low-pressure branch pressure relief assembly to act, water in a measured special valve is relieved and enters a water supply tank, pressure relief of the low-pressure branch water supply pipe is completed, meanwhile, the microcontroller controls the high-pressure branch pressure relief assembly to act, water of the measured special valve is relieved and enters the water supply tank, and pressure relief of the high-pressure branch water supply pipe is completed;
step 4035, in the process that the low-pressure branch water supply pipe and the high-pressure branch water supply pipe are in pressure maintaining, a first water pressure detection unit detects the pressure of the outlet end of the low-pressure branch water supply pipe in real time, and sends the detected pressure of the outlet end of the low-pressure branch water supply pipe to a microcontroller, a second water pressure detection unit detects the pressure of the outlet end of the high-pressure branch water supply pipe in real time, and sends the detected pressure of the outlet end of the high-pressure branch water supply pipe to the microcontroller, the microcontroller refers to the pressure of the outlet end of the low-pressure branch water supply pipe and the pressure of the outlet end of the high-pressure branch water supply pipe as a low-pressure valve strength pressure test value and sends the low-pressure valve strength pressure test value to an industrial personal computer, and the industrial personal computer invokes a curve drawing module to draw a curve of the low-pressure valve strength pressure test value along with the change of the low-pressure maintaining time, so as to obtain a pressure drop of the measured special valve according to the curve of the low-pressure valve strength pressure test value;
Step 4036, comparing the pressure drop of the measured special-shaped valve with a preset low-pressure drop set value by the industrial personal computer, when the pressure drop of the measured special-shaped valve is smaller than the preset low-pressure drop set value, indicating that the valve strength of the measured special-shaped valve is qualified, otherwise, failing the measured special-shaped valve, sending a valve strength failing instruction to the microcontroller by the industrial personal computer, and controlling an alarm to alarm by the microcontroller;
step 404, when the valve strength pressure test set value of any special-shaped valve to be tested is greater than 40MPa, performing high-pressure valve strength pressure test on the special-shaped valve to be tested, and performing the high-pressure valve strength pressure test method on the special-shaped valve to be tested as follows:
step 4041, a microcontroller controls the isolation assembly to be electrified, a first high-pressure regulating instruction is sent to the microcontroller through an industrial personal computer, the microcontroller controls the proportional pressure regulating valve and the return pressure regulating valve to regulate driving air pressure, then the microcontroller controls the first electromagnetic valve and the second electromagnetic valve to be electrified in a reciprocating mode, driving air is provided for the first pneumatic pump through the air supply assembly, the first pneumatic pump is started, and the measured special-shaped valve is filled with water rapidly;
step 4042, a second high-pressure regulating instruction is sent to a microcontroller through the industrial personal computer, the microcontroller controls the first electromagnetic valve and the second electromagnetic valve to be powered off, the first pneumatic pump stops working, the microcontroller controls the proportional pressure regulating valve and the return pressure regulating valve to regulate the driving air pressure, and then the microcontroller controls the third electromagnetic valve and the fourth electromagnetic valve to be powered on in a reciprocating mode, and the air supply assembly supplies driving air for the second pneumatic pump to enable the second pneumatic pump to be started;
Step 4043, sending a third high-pressure regulating instruction to a microcontroller through an industrial personal computer, wherein the microcontroller regulates the driving air pressure to rise through a proportional pressure regulating valve and a return pressure regulating valve, so that the pressure at the outlet end of the high-pressure branch water supply pipe is equal to a preset high-pressure valve strength pressure test set value;
step 4044, a high-pressure maintaining instruction is sent to a microcontroller through an industrial personal computer, the microcontroller controls the high-pressure branch pressure maintaining assembly to act, the high-pressure branch water supply pipe is in a pressure maintaining state, and when the high-pressure maintaining time preset by a timer is reached, a high-pressure releasing instruction is sent to the microcontroller through the industrial personal computer, the microcontroller controls the high-pressure branch pressure releasing assembly to act, water of a measured special valve is released to enter a water supply tank, and pressure release of the high-pressure branch water supply pipe is completed;
step 4045, in the process that the high-pressure branch water supply pipe is in pressure maintaining, the second water pressure detection unit detects the pressure of the outlet end of the high-pressure branch water supply pipe in real time, the detected pressure of the outlet end of the high-pressure branch water supply pipe is sent to the microcontroller, the microcontroller refers to the pressure of the outlet end of the high-pressure branch water supply pipe as a high-pressure valve strength pressure test value and sends the high-pressure valve strength pressure test value to the industrial personal computer, the industrial personal computer invokes a curve drawing module to draw a curve of the high-pressure valve strength pressure test value changing along with the high-pressure maintaining time, and the industrial personal computer obtains a pressure drop of the tested special valve according to the high-pressure valve strength pressure test value change curve;
Step 4046, comparing the pressure drop of the measured special-shaped valve with a preset high-pressure drop set value by the industrial personal computer, when the pressure drop of the measured special-shaped valve is smaller than the preset high-pressure drop set value, indicating that the valve strength of the measured special-shaped valve is qualified, and sending a valve strength qualification instruction to the microcontroller by the industrial personal computer, and controlling the indication lamp to be on by the microcontroller; otherwise, the tested abnormal valve is unqualified, the industrial personal computer sends a valve strength unqualified instruction to the microcontroller, and the microcontroller controls the alarm to alarm;
step 405, the liquid-passing quick connectors are disassembled, and then an instruction for stopping air supply is sent to a microcontroller through the industrial personal computer, the microcontroller controls a plurality of groups of electromagnetic valves of the liquid-passing quick connectors to be powered off, and the air supply assembly stops air supply for each group of liquid-passing quick connectors;
testing the valve sealing pressure:
step 501, connection of a ventilation quick connector and a valve of a measured abnormal shape, which is specifically as follows:
the method comprises the following steps that 5011, an air supply instruction of the air-vent quick connector is sent to a microcontroller through an industrial personal computer, the microcontroller controls a plurality of groups of electromagnetic valves of the air-vent quick connector to be electrified, and the air supply assembly supplies air for each group of air-vent quick connectors;
Step 5012, connecting a plurality of groups of ventilation quick connectors with a plurality of tested special-shaped valves respectively;
step 502, sending a seal pressure regulating instruction to a microcontroller through an industrial personal computer, wherein the microcontroller controls the action of the airtight filtering pressure regulator until a seal pressure value displayed by an airtight pressure gauge connected with an outlet of the airtight filtering pressure regulator meets a seal pressure set value; in the process of the action of the airtight filtering pressure regulator, the first air pressure detection unit detects the sealing pressure value of the outlet of the airtight filtering pressure regulator in real time, and sends the detected sealing pressure value to the microcontroller, and the microcontroller controls the main airtight digital display meter to display the sealing pressure value in real time;
step 503, a sealing test instruction is sent to a microcontroller through an industrial personal computer, the microcontroller controls a plurality of fifth electromagnetic valves to be electrified, the plurality of tested special-shaped valves are inflated through the main air pipe and each branch air pipe respectively, until the sealing pressure test time preset by a timer is reached, a plurality of second air pressure detection units respectively detect the pressures of the outlet ends of the plurality of branch air pipes in real time, the detected pressures of the outlet ends of the plurality of branch air pipes are sent to the microcontroller, and the microcontroller respectively controls a plurality of branch airtight digital display meters to display the pressures of the outlet ends of the plurality of branch air pipes in real time; wherein the valve of the measured abnormal shape is in an open state;
Step 504, the microcontroller compares the received pressures of the outlet ends of the plurality of branch air pipes with preset sealing pressure set values respectively, and when the pressure of the outlet ends of the branch air pipes detected by the second air pressure detection unit does not accord with the preset sealing pressure set values, step 505 is executed; otherwise, go to step 506;
step 505, when the pressure at the outlet end of the branched air pipe detected by the second air pressure detection unit does not accord with a preset sealing pressure set value, the sealing performance of the detected special-shaped valve is proved to be unqualified, and the industrial control computer sends a sealing performance unqualified instruction to the microcontroller, and the microcontroller controls the alarm to alarm;
step 506, when the pressure at the outlet end of the branched air pipe detected by the second air pressure detection unit accords with a preset sealing pressure set value, the tightness of the detected special-shaped valve is qualified, and the industrial personal computer sends a tightness qualification instruction to the microcontroller, and the microcontroller controls the indicator lamp to be on;
step 507, disassembling the ventilation quick connectors, and then sending a ventilation quick connector stopping air supply instruction to a microcontroller through an industrial personal computer, wherein the microcontroller controls a plurality of groups of ventilation connector electromagnetic valves to be powered off, and the air supply assembly stops air supply for each group of ventilation quick connectors;
Step six, disassembling and labeling the measured special-shaped valve: the method comprises the steps that a valve disassembly instruction is sent to a microcontroller through an industrial personal computer, the microcontroller controls a seventh electromagnetic valve to be powered off, air is fed to a rod cavity of a hydraulic cylinder, a piston rod in the hydraulic cylinder is contracted, unlocking operation is carried out on a hydraulic lock, a tested special-shaped valve on a hydraulic clamping mechanism is disassembled, meanwhile, the microcontroller controls a sixth electromagnetic valve to be powered off, air is fed to a rodless cavity of a cylinder body through a clamping main air feeding pipe, and the piston rod in the cylinder body is extended, so that the tested special-shaped valve on the pneumatic clamping mechanism is disassembled;
when the valve strength of the valve to be tested is qualified and the valve tightness of the valve to be tested is qualified, the industrial personal computer sends a two-dimension code printing instruction to the microcontroller, and the microcontroller controls the two-dimension code printing module to print the two-dimension code and attaches the two-dimension code to the valve to be tested with qualified valve strength and tightness and stores the two-dimension code in a warehouse.
The method is characterized in that: in step 4012, the method for connecting the plurality of groups of liquid-passing quick connectors with the plurality of measured special-shaped valves is the same, wherein any group of liquid-passing quick connectors are connected with the measured special-shaped valves, and the process is as follows:
When the inlet and the outlet of the measured special-shaped valve are one, the first liquid-passing quick connector is connected with the inlet of the measured special-shaped valve, and the second liquid-passing quick connector is connected with the outlet of the measured special-shaped valve;
when the number of the inlets of the tested special-shaped valve is one, the number of the outlets of the tested special-shaped valve is two, the first liquid-passing quick connector is connected with the inlet of the tested special-shaped valve, the second liquid-passing quick connector is connected with one outlet of the tested special-shaped valve, and the standby liquid-passing quick connector is connected with the other outlet of the tested special-shaped valve;
when the number of the inlets of the measured special-shaped valves is two, the first liquid-passing quick connector is connected with one inlet of the measured special-shaped valve, the standby liquid-passing quick connector is connected with the other inlet of the measured special-shaped valve, and the second liquid-passing quick connector is connected with the outlet of the measured special-shaped valve.
The method is characterized in that: in step 5012, the method for connecting multiple groups of ventilation quick connectors with multiple tested special-shaped valves is the same, wherein any group of ventilation quick connectors are connected with the tested special-shaped valves, and the process is as follows:
When the inlet and the outlet of the measured special-shaped valve are one, the first ventilation quick connector is connected with the inlet of the measured special-shaped valve, and the second ventilation quick connector is connected with the outlet of the measured special-shaped valve;
when the number of the inlets of the tested special-shaped valve is one and the number of the outlets of the tested special-shaped valve is two, connecting the first ventilation quick connector with the inlet of the tested special-shaped valve, connecting the second ventilation quick connector with one outlet of the tested special-shaped valve, and connecting the standby ventilation quick connector with the other outlet of the tested special-shaped valve;
when the number of the inlets of the measured special-shaped valves is two, the first ventilation quick connector is connected with one inlet of the measured special-shaped valve, the standby ventilation quick connector is connected with the other inlet of the measured special-shaped valve, and the second ventilation quick connector is connected with the outlet of the measured special-shaped valve.
The method is characterized in that: the value range of the sealing pressure set value is 0.5 MPa-0.8 MPa.
The method is characterized in that: step I and before the microcontroller controls the seventh electromagnetic valve to be electrified, the hydraulic oil stop valve is operated to be opened; when the tested special-shaped valve in the step I and the step V is clamped, when the hydraulic pressure in the clamping main oil supply pipe exceeds a safe hydraulic pressure set value, the hydraulic oil safety valve is opened;
In the step I and the step V, the hydraulic pressure of the clamping main oil supply pipe is detected in real time through a second clamping mechanical pressure gauge, so that the hydraulic pressure of the clamping main oil supply pipe displayed by the second clamping mechanical pressure gauge is the same as the hydraulic pressure in the clamping main oil supply pipe displayed by a second clamping digital display meter;
and C, detecting the pressure in the clamping main gas supply pipe in real time through a first clamping mechanical pressure gauge so that the pressure in the clamping main gas supply pipe displayed by the first clamping mechanical pressure gauge is the same as the hydraulic pressure of the pressure in the clamping main gas supply pipe displayed by the first clamping digital display meter.
Compared with the prior art, the invention has the following advantages:
1. the clamping device has the advantages of simple structure, reasonable design, stable clamping force and simple and convenient manufacture.
2. The clamping device comprises a plurality of pneumatic clamping mechanisms and a plurality of hydraulic clamping mechanisms, is stable in clamping, and can meet the clamping requirements of special-shaped valves such as a straight-through valve, a different-axis valve, an angle valve and a three-way valve.
3. A first electromagnetic valve and a second electromagnetic valve are arranged in the adopted pressurizing mechanism to control a driving air loop of the first pneumatic pump so as to quickly empty air in the valve of the measured abnormal shape at low pressure; the third electromagnetic valve and the fourth electromagnetic valve are arranged to control a driving air loop of the second pneumatic pump, and the output pressure of the second pneumatic pump is boosted, so that the output pressure of the second pneumatic pump meets the valve pressure test requirement, the control of the first pneumatic pump and the control of the second pneumatic pump are mutually independent and do not influence each other, and the testing time can be effectively reduced by adjusting according to the requirement.
4. The first electromagnetic valve and the second electromagnetic valve in the adopted pressurizing mechanism are external pilot electromagnetic valves, the first electromagnetic valve and the second electromagnetic valve are started at lower pressure, can be electrified frequently, are suitable for high-pressure environments, and are small in damage and energy-saving.
5. The adopted monitoring device has high automation degree, is far away from the tested special-shaped valve, improves personnel safety, can simply, conveniently and rapidly complete the test process of the strength pressure and the sealing pressure of a plurality of special-shaped valves, and has high safety.
6. The adopted special-shaped valve pressure online test method has the advantages of simple steps, reasonable design, convenient implementation and good use effect, can simply, conveniently and rapidly complete the test of the special-shaped valve pressure, and is safe and reliable in test process.
7. The special-shaped valves are defined and determined in the clamped area, the special-shaped valves are classified according to the similarity degree of shape and structure in the annual warehousing quality inspection through special-shaped valve definition, the classified special-shaped valves account for 90% of the annual warehousing quality inspection quantity, the special-shaped valves can be well adapted to different special-shaped valves, the coverage range is large, and the special-shaped valve classification requirement is met; the clamping area of the special-shaped valve is determined to be two parallel planes or arc surfaces, so that the clamping mechanism is convenient to clamp, and the hand wheel in the special-shaped valve is convenient to operate in the testing process of the special-shaped valve.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a schematic block diagram of a system for testing the pressure of a special valve in an on-line manner.
Fig. 2 is a schematic structural diagram of the hydraulic pressure testing device of the present invention.
FIG. 3 is a schematic diagram of the air pressure testing device of the present invention.
Fig. 4 is a schematic structural view of the pneumatic clamping device of the present invention.
Fig. 5 is a schematic diagram of the hydraulic circuit of the hydraulic clamping device of the present invention.
FIG. 6 is a flow chart of the method for testing the pressure of the special-shaped valve in the on-line mode.
Fig. 7A-7H are schematic structural views of the special-shaped valve of the present invention.
Reference numerals illustrate:
1-a first valve body; 1-2-a first valve handle; 1-3-through a plane;
2-1-a second valve body; 2-a second valve handle; 2-3-through b plane;
2-4, a sewage draining part; 2-5-regular polyhedron; 3-1 to a third valve body;
3-2-a third valve handle; 3-arc surface; 4-1 to a fourth valve body;
4-2-fourth valve handle; 4-3-paraxial plane; 5-1 to a fifth valve body;
5-2-a fifth valve handle; 5-3-angle plane; 6-1 to a sixth valve body;
6-2-sixth valve handle; 6-3-arc part; 7-1 to seventh valve body;
7-2-seventh valve handle; 7-3-plane of the three general formula a; 8-1 to eighth valve body;
8-2-eighth valve handle; 8-3-three-way arc-shaped parts; 8-4-plane of the three general formula b;
20-a digital display meter module; 21-a data memory; 22-a communication module;
23-an industrial personal computer; 24-a two-dimensional code printing module; 25-an indicator light;
26-timer; 27-a first clamping force detection unit;
28-a second clamping force detection unit; 30-compressed gas interface;
31-a compressed gas filter; 32-a compressed gas one-way valve; 33-a surge tank;
34-a third air pressure detection unit; 35-a gas supply one-way valve;
36-an air supply pressure regulating valve; 37-a proportional pressure regulating valve; 38-a third solenoid valve;
39—a first solenoid valve; 40-return pressure regulating valve; 41-a water inlet electromagnetic valve;
42-a water inlet filter; 43-water inlet pipe; 44-an air filter;
45-a water supply tank; 46—a first liquid level detection unit; 47-a blow-down valve;
48-a main stop valve; 49-a first filter; 50-a second solenoid valve;
51—a first pneumatic pump; 52-a second pneumatic pump; 53-a fourth solenoid valve;
54—a first safety valve; 55-a first one-way valve; 56-a second one-way valve;
57-a third one-way valve; 58-a fourth one-way valve; 59-buffer tube;
60-a third water pressure detection unit; 61-isolating the control solenoid valve;
62-isolating pneumatic valve; 63-a high-voltage inlet digital display meter; 64-a second mechanical pressure gauge;
65-a third safety valve; 66-a pressure-maintaining pneumatic control valve of the high-pressure branch;
67-a third filter; 68-a second pressure maintaining electromagnetic valve; 69-a second manual unloading valve;
70-a third mechanical pressure gauge; 71-a second pressure relief solenoid valve; 72-a high-pressure branch pressure relief pneumatic control valve;
73-a fifth filter; 74-a second water pressure detection unit;
75-a high-pressure outlet digital display meter; 76—a backup safety valve; 77-a first pressure maintaining solenoid valve;
78-a pressure-maintaining pneumatic control valve of the low-pressure branch; 79-a second filter;
80-a second safety valve; 81-a first pressure relief solenoid valve;
82-a low pressure branch pressure relief pneumatic valve; 83-fourth filter;
84—a first manual unloading valve; 85—a first mechanical pressure gauge; 86-a low-voltage digital display meter;
87-a first water pressure detection unit; 88-an alarm;
89-a microcontroller; 91-a dispersion tube; 92-a protective tube;
93-a first liquid-passing quick connector; 94-a second liquid-passing quick connector; 97-parameter setting unit;
100-a measured special valve; 101-an airtight pressure gauge;
102-a first air pressure detection unit; 103-airtight filtration pressure regulator; 104, a surge tank;
105-an airtight filter; 106-a fifth electromagnetic valve;
107-a second air pressure detection unit; 108, a branch airtight digital display meter;
109-a first venting quick connector; 110-a second venting quick connector;
111-a main airtight digital display meter; 112-an airtight safety valve; 200-cylinder body;
201-a piston rod; 202-moving the clamping plate; 203-a fixed clamping plate;
204, clamping blocks; 205-a sixth solenoid valve; 206-clamping the branched gas supply tube;
207-clamping safety valve; 208—clamping a proportional valve; 209-clamping the main supply pipe;
210—a first clamping mechanical pressure gauge; 211-a first clamping digital display meter;
212-a first clamping pressure detection unit; 213-clamping the filter;
214—clamping compressed gas interface; 300-a hydraulic cylinder;
301—a clamping lever; 302-a hydraulic oil tank; 303-clamping the main oil supply pipe;
304-clamping the branch oil supply pipe; 305-seventh solenoid valve;
306-a hydraulic oil filter; 307-hydraulic oil shut-off valve; 308-an oil pump;
309—a hydraulic oil safety valve; 310-a second clamping mechanical pressure gauge;
311-a second clamping digital display meter; 312-a second clamping pressure detection unit;
313-an oil supply check valve; 314-an oil inlet solenoid valve; 315—hydraulic lock;
316-a second liquid level detection unit.
Detailed Description
1-3, including the frame, carry on the clamping device of centre gripping to a plurality of measured abnormal shape valves 100, carry on the hydraulic pressure testing device and carry on the air pressure testing device of the seal pressure test to a plurality of measured abnormal shape valves 100, and carry on the monitoring device that monitors to the said clamping device, said hydraulic pressure testing device and said air pressure testing device, said clamping device, said hydraulic pressure testing device and said air pressure testing device are all installed on said frame, there are multiple sets of liquid quick connectors and multiple sets of quick connectors of ventilation that connect with measured abnormal shape valves 100 on the said frame;
the clamping device comprises a pneumatic clamping device and a hydraulic clamping device, the pneumatic clamping device comprises a pneumatic clamping mechanism and a pneumatic clamping driving mechanism for driving the pneumatic clamping mechanism, the hydraulic clamping device comprises a hydraulic clamping mechanism and a hydraulic clamping driving mechanism for driving the hydraulic clamping mechanism, the number of the pneumatic clamping mechanisms is multiple, the number of the hydraulic clamping mechanisms is multiple, and the sum of the number of the pneumatic clamping mechanisms and the number of the hydraulic clamping mechanisms is the same as the number of the tested special-shaped valves 100;
The water pressure testing device comprises a water supply mechanism, a pressurizing mechanism and a pressure relief mechanism, wherein the water supply mechanism comprises a water supply tank 45, a main water supply pipe connected with the water supply tank 45, a dispersing pipe 91 connected with the main water supply pipe, a low-pressure branch water supply pipe and a high-pressure branch water supply pipe, the low-pressure branch water supply pipe and the high-pressure branch water supply pipe are connected with the dispersing pipe 91 and are used for supplying water to a plurality of tested special-shaped valves 100, an isolating component is arranged at the inlet of the dispersing pipe 91 and the inlet of the low-pressure branch water supply pipe, at least one of the low-pressure branch water supply pipe and the high-pressure branch water supply pipe is respectively arranged, a low-pressure branch pressure maintaining component and a low-pressure branch water supply component are arranged on the low-pressure branch water supply pipe, a high-pressure branch pressure maintaining component and a high-pressure branch water supply component are arranged on the high-pressure relief mechanism, the pressure relief mechanism comprises a low-pressure branch pressure relief component arranged at the outlet end of the low-pressure branch water supply pipe and a high-pressure branch pressure relief component arranged at the outlet end of the high-pressure branch water supply pipe, a first water pressure detection unit 87 is arranged at the outlet end of the low-pressure branch water supply pipe, and a second water pressure detection unit 74 is arranged at the outlet end of the high-pressure branch water supply pipe;
the pressurizing mechanism comprises an air supply assembly, a proportional pressure regulating valve 37 and a return pressure regulating valve 40 for regulating the driving air pressure output by the air supply assembly, a first air pump 51 and a second air pump 52 for pressurizing the hydraulic pressure in the main water supply pipe, and an air pump control assembly for controlling the first air pump 51 and the second air pump 52, wherein the air pump control assembly comprises a first electromagnetic valve 39 arranged at an air inlet of the first air pump 51, a second electromagnetic valve 50 arranged at an air outlet of the first air pump 51, a third electromagnetic valve 38 arranged at an air inlet of the second air pump 52 and a fourth electromagnetic valve 53 arranged at an air outlet of the second air pump 52;
The air pressure testing device comprises a main air pipe and a plurality of branch air pipes connected with the outlets of the main air pipe, wherein a first air pressure detecting unit 102 is arranged on the main air pipe, a second air pressure detecting unit 107 is arranged on each branch air pipe, and a fifth electromagnetic valve 106 is arranged on each branch air pipe;
each group of liquid-passing quick connectors comprises a first liquid-passing quick connector 93, a second liquid-passing quick connector 94 and a standby liquid-passing quick connector, each group of liquid-passing quick connectors comprises a first liquid-passing quick connector 109, a second liquid-passing quick connector 110 and a standby liquid-passing quick connector, a liquid-passing joint electromagnetic valve is arranged on a gas supply pipe for supplying gas to each group of liquid-passing quick connectors by the gas supply assembly, the first liquid-passing quick connector 93 is connected with the outlet end of the low-pressure branch water supply pipe and the outlet end of the high-pressure branch water supply pipe, and the first liquid-passing quick connector 109 is connected with the outlet end of the branch gas pipe;
the monitoring device comprises a microcontroller 89, a parameter setting unit 97 and a communication module 22 which are respectively connected with the microcontroller 89, wherein the microcontroller 89 is in data communication with the industrial personal computer 23 through the communication module 22, the input end of the microcontroller 89 is connected with a timer 26, a third air pressure detection unit 34 for detecting the output pressure of the air supply assembly, a first clamping force detection unit 27 for detecting the first clamping force between the air pressure clamping mechanism and the measured special-shaped valve 100, a second clamping force detection unit 28 for detecting the second clamping force between the hydraulic clamping mechanism and the measured special-shaped valve 100, a first liquid level detection unit 46 for detecting the liquid level in the water supply tank 45, an alarm 88, a water inlet electromagnetic valve 41 for controlling the water supply tank 45, a sixth electromagnetic valve 205 for controlling the air pressure clamping driving mechanism and a seventh electromagnetic valve 305 for controlling the air supply assembly, the number of the sixth electromagnetic valve 205 is the same as that of the air pressure clamping mechanism, the number of the seventh electromagnetic valve 205 is the same as that of the air pressure clamping mechanism, the hydraulic clamping mechanism is the number of the seventh electromagnetic valve 205, the hydraulic clamping mechanism is the same as that of the first electromagnetic valve 205, the fourth electromagnetic valve 205, the pressure maintaining assembly, the third electromagnetic valve assembly, the pressure assembly, the high-pressure electromagnetic valve assembly, the high-pressure assembly, the third electromagnetic valve assembly, the high-pressure assembly and the pressure assembly, the high-pressure assembly and the high-pressure electromagnetic valve assembly and the low pressure assembly.
As shown in fig. 4 and fig. 5, in this embodiment, the pneumatic clamping driving mechanism is a clamping cylinder, the clamping cylinder includes a cylinder body 200 and a piston rod 201 with one end extending out of the cylinder body 200, the pneumatic clamping mechanism includes a fixed clamping plate 203 fixedly connected with the cylinder body 200, and a movable clamping plate 202 sleeved at one end of the piston rod 201 and capable of approaching to or separating from the fixed clamping plate 203, the fixed clamping plate 203 and the movable clamping plate 202 are arranged in parallel relatively, and clamping blocks 204 for clamping the measured special-shaped valve are arranged on opposite surfaces of the fixed clamping plate 203 and the movable clamping plate 202; a clamping air supply pipeline for supplying air to the cylinder 200 is arranged in the frame, the clamping air supply pipeline comprises a clamping main air supply pipe 209 connected with a compressed air source and a plurality of clamping branch air supply pipes 206 connected between the clamping main air supply pipe 209 and the cylinder 200, the clamping main air supply pipe 209 is provided with a clamping filter 213, a first clamping digital display meter 211, a first clamping mechanical pressure meter 210, a clamping proportional valve 208 and a clamping safety valve 207, and a first clamping pressure detection unit 212 for detecting the pressure in the clamping main air supply pipe 209, each sixth electromagnetic valve 205 is respectively positioned on each clamping branch air supply pipe 206, the first clamping digital display meter 211 is positioned on the frame, and the first clamping digital display meter 211 and the first clamping pressure detection unit 212 are connected with the microcontroller 89;
The hydraulic clamping driving mechanism comprises two symmetrically arranged hydraulic cylinders 300, the hydraulic clamping mechanism comprises two groups of clamping components which are respectively arranged on the two hydraulic cylinders 300, each group of clamping rod components comprises a plurality of clamping rods 301, one ends of the clamping rods 301 can shrink or extend out of the hydraulic cylinders 300, and the clamping rods 301 are distributed in a plurality of rows and a plurality of columns; the hydraulic oil tank 302 for supplying hydraulic oil to the hydraulic cylinders 300, the clamping main oil supply pipe 303 connected with the hydraulic oil tank 302 and a plurality of clamping branch oil supply pipes 304 connected between the clamping main oil supply pipe 303 and the hydraulic cylinders 300 are arranged in the rack, the clamping branch oil supply pipes 304 are connected with the two hydraulic cylinders 300, the seventh electromagnetic valve 305 is positioned on the clamping branch oil supply pipes 304, a hydraulic oil filter 306, a hydraulic oil stop valve 307, a hydraulic oil safety valve 309, an oil pump 308, a second clamping mechanical pressure gauge 310 and an oil supply check valve 313 are arranged on the clamping main oil supply pipe 303, a second clamping pressure detection unit 312 for detecting the pressure in the clamping main oil supply pipe 303 is arranged on the clamping branch oil supply pipes 304, a hydraulic lock 315 is arranged on the clamping branch oil supply pipes 304, a second clamping digital display table 311 for displaying the pressure in the clamping main oil supply pipe 303 is arranged in the rack, an inlet of the hydraulic oil tank 302 is provided with an oil inlet electromagnetic valve 314, and the oil inlet of the oil inlet valve 314, the second liquid level detection unit 316, the second clamping digital display table 311 and the second clamping digital display table 312 are connected with the microcontroller;
The main air pipe is provided with an airtight filtering pressure regulator 103, a main airtight digital display meter 111, an airtight pressure meter 101, an airtight safety valve 112 and a surge tank 104, each branch air pipe is provided with an airtight filter 105 and a branch airtight digital display meter 108, and the airtight filtering pressure regulator 103, the airtight filter 105 and the branch airtight digital display meter 108 are connected with the microcontroller 89.
As shown in fig. 2, in this embodiment, a buffer tube 59 is disposed between the output end of the main water supply pipe and the dispersion tube 91, and the main water supply pipe is sequentially provided with a main stop valve 48, a first filter 49 and a first safety valve 54 along the liquid flow direction;
the low-pressure branch water supply assembly comprises a second filter 79, a second safety valve 80, a first manual unloading valve 84 and a first mechanical pressure gauge 85 which are arranged on the low-pressure branch water supply pipe and are sequentially arranged along the liquid flowing direction, the high-pressure branch water supply assembly comprises a third water pressure detection unit 60, a second mechanical pressure gauge 64, a third safety valve 65, a third filter 67, a second manual unloading valve 69 and a third mechanical pressure gauge 70 which are arranged on the high-pressure branch water supply pipe and are sequentially arranged along the liquid flowing direction, a low-pressure digital display meter 86 which is used for displaying the water pressure at the outlet end of the low-pressure branch water supply pipe, a high-pressure outlet digital display meter 75 which is used for displaying the water pressure at the outlet end of the high-pressure branch water supply pipe and a high-pressure inlet digital display meter 63 which is used for displaying the water pressure at the inlet end of the high-pressure branch water supply pipe are arranged on the rack, and the low-pressure digital display meter 86, the high-pressure outlet digital display meter 75 and the high-pressure inlet digital display meter 63 are all controlled by a microcontroller 89 and are all connected with the microcontroller 89;
The low pressure branch pressure maintaining assembly is located between the dispersing pipe 91 and the second filter 79, and the high pressure branch pressure maintaining assembly is located between the third safety valve 65 and the third filter 67.
As shown in fig. 2, in this embodiment, the low-pressure branch pressure maintaining assembly includes a low-pressure branch pressure maintaining pneumatic control valve 78 and a first pressure maintaining electromagnetic valve 77 disposed on an air supply pipe for supplying air to the low-pressure branch pressure maintaining pneumatic control valve 78 by the air supply assembly, the low-pressure branch pressure maintaining pneumatic control valve 78 is located on the low-pressure branch water supply pipe, and the low-pressure branch pressure maintaining pneumatic control valve 78 is a normally closed pneumatic control valve; the low-pressure branch pressure relief assembly comprises a first water drain pipe connected with the outlet end of the low-pressure branch water supply pipe, a low-pressure branch pressure relief pneumatic control valve 82 arranged on the first water drain pipe and a first pressure relief electromagnetic valve 81 arranged on an air supply pipe for supplying air to the low-pressure branch pressure relief pneumatic control valve 82 by the air supply assembly, the outlet end of the first water drain pipe is connected with the water supply tank 45, the low-pressure branch pressure relief pneumatic control valve 82 is a normally open pneumatic control valve, and both the first pressure maintaining electromagnetic valve 77 and the first pressure relief electromagnetic valve 81 are controlled by the microcontroller 89;
the high-pressure branch pressure maintaining assembly comprises a high-pressure branch pressure maintaining pneumatic control valve 66 and a second pressure maintaining electromagnetic valve 68 arranged on an air supply pipe for supplying air to the high-pressure branch pressure maintaining pneumatic control valve 66 by the air supply assembly, the high-pressure branch pressure maintaining pneumatic control valve 66 is positioned on the high-pressure branch water supply pipe, and the high-pressure branch pressure maintaining pneumatic control valve 66 is a normally closed pneumatic control valve; the high-pressure branch pressure relief assembly comprises a second water drain pipe connected with the outlet end of the high-pressure branch water supply pipe, a high-pressure branch pressure relief pneumatic control valve 72 arranged on the second water drain pipe, and a second pressure relief electromagnetic valve 71 arranged on an air supply pipe for supplying air to the high-pressure branch pressure relief pneumatic control valve 72 by the air supply assembly, the outlet end of the second water drain pipe is connected with the water supply tank 45, and the high-pressure branch pressure relief pneumatic control valve 72 is a normally open pneumatic control valve;
The isolation assembly comprises isolation pneumatic control valves 62 arranged on the dispersing pipes 91 and positioned at the inlets of the low-pressure branch water supply pipes, and isolation control electromagnetic valves 61 arranged on the air supply pipes of the air supply assembly for supplying air to the isolation pneumatic control valves 62, wherein the isolation control electromagnetic valves 61 are normally closed pneumatic control valves, and the second pressure maintaining electromagnetic valves 68, the second pressure relief electromagnetic valves 71 and the isolation control electromagnetic valves 61 are all in control connection by the microcontroller 89.
As shown in fig. 2, in this embodiment, the main water supply pipe includes a first main water supply pipe connected between the water supply tank 45 and the first air pump 51, a second main water supply pipe connected between the first air pump 51 and the second air pump 52, and a third main water supply pipe connected between the second air pump 52 and the buffer pipe 59, the main stop valve 48 and the first filter 49 are located on the first main water supply pipe, one end of the first main water supply pipe is connected to the outlet of the water supply tank 45, the other end of the first main water supply pipe is provided with a first check valve 55, one end of the second main water supply pipe is provided with a second check valve 56, the other end of the second main water supply pipe is provided with a third check valve 57, one end of the third main water supply pipe is provided with a fourth check valve 58, the first air pump 51 is connected between the first check valve 55 and the second check valve 56, the second air pump 52 is connected between the third check valve 57 and the fourth check valve 58, the other end of the third main water supply pipe is connected to the buffer pipe 59, and one end of the buffer pipe is connected to the buffer pipe 91;
The inlet of supply tank 45 is provided with inlet tube 43, be provided with into water filter 42 on the inlet tube 43, it is located to advance water solenoid valve 41 on the inlet tube, the top of supply tank 45 is provided with air cleaner 44, be provided with high liquid level warning line and low liquid level warning line in the supply tank 45, the bottom of supply tank 45 is provided with the blow off pipe, be provided with blow off valve 47 on the blow off pipe, first liquid level detection unit 46 is located in the supply tank 45.
As shown in fig. 2, in this embodiment, the air supply assembly includes a compressed air interface 30, a first pressurized main air pipe connected to the compressed air interface 30, and an air source processing assembly disposed on the first pressurized main air pipe, where an output end of the air source processing assembly is connected to a second pressurized main air pipe and a third pressurized main air pipe, an output end of the second pressurized main air pipe is connected to a first driving air pipe and a second driving air pipe, the proportional pressure regulating valve 37 is located on the first driving air pipe, the first driving air pipe is connected to an air inlet of the first air pump 51 through a first pressurizing pipe, the first driving air pipe is connected to an air inlet of the second air pump 52 through a second pressurizing pipe, the second driving air pipe is connected to an air outlet of the first air pump 51 through a first return pipe, the return pressure regulating valve 40 is located on the second driving air pipe, the third pressurizing main air pipe is a first solenoid valve 39, a third solenoid valve 38, the low pressure maintaining branch assembly, the second solenoid valve 39 is located on the second return pressure regulating valve 53, the second solenoid valve 53 is located on the first pressure maintaining branch assembly, the second solenoid valve 53 is located on the second return pressure maintaining assembly, and the second solenoid valve 53 is located on the second pressure maintaining branch valve;
The air source processing assembly includes a compressed air filter 31, a compressed air check valve 32, and a surge tank 33.
In this embodiment, the high-voltage input digital display table 63, the high-voltage output digital display table 75, the low-voltage digital display table 86, the branch airtight digital display table 108, the main airtight digital display table 111, the first clamping digital display table 211 and the second clamping digital display table 311 form the digital display table module 20.
The on-line test method for the pressure of the special-shaped valve shown in fig. 6 and 7A-7H comprises the following steps:
step one, preparing work before testing:
step 101, checking the water pressure testing device and the air pressure testing device: checking the water pressure testing device and the air pressure testing device pipeline, determining that the water pressure testing device and the air pressure testing device pipeline are normal, powering up to initialize the water pressure testing device, the air pressure testing device and the monitoring device, and determining that all parts of the water pressure testing device and the air pressure testing device are normal;
step 102, connection of a compressed air source and addition of a test solution: connecting a compressed air source of 0.7MPa with the air supply assembly, connecting a water supply source with the water supply tank 45, sending a water adding instruction to the microcontroller 89 through the industrial personal computer 23, controlling the water inlet electromagnetic valve 41 to be electrified by the microcontroller 89, and adding water into the water supply tank 45 until the liquid level value detected by the first liquid level detection unit 46 meets a preset liquid level set value;
Step two, defining a special-shaped valve and determining a clamped area of the special-shaped valve:
step 201, defining a special-shaped valve structure:
the special-shaped valve comprises a straight-through valve, a different-axis valve, an angle valve and a three-way valve, wherein the straight-through valve comprises a straight-through type a valve, a straight-through type b valve and a straight-through type c valve, the angle valve comprises an angle type a valve and an angle type b valve, and the three-way valve comprises a three-way type a valve and a three-way type b valve;
the straight-through type a valve consists of a first valve body 1-1 and a first valve handle 1-2 arranged on the first valve body 1-1, wherein the central line of an inlet of the first valve body 1-1 and an outlet of the first valve body 1-1 are overlapped, the first valve body 1-1 is provided with two straight-through a planes 1-3, the two straight-through a planes 1-3 are opposite surfaces, and a first hand wheel is arranged on the first valve handle 1-2;
the straight-through type b valve consists of a second valve body 2-1, a second valve handle 2-2 arranged on the second valve body 2-1 and a sewage draining part 2-4 arranged on the second valve body 2-1, wherein the central line of an inlet of the second valve body 2-1 and an outlet of the second valve body 2-1 are overlapped, the second valve body 2-1 is provided with a straight-through b plane 2-3, the second valve handle 2-2 is provided with a regular polyhedron 2-5, and the second valve handle 2-2 is provided with a second hand wheel;
The straight-through type c valve consists of a third valve body 3-1 and a third valve handle 3-2 arranged on the third valve body 3-1, wherein the center line of an inlet of the third valve body 3-1 and an outlet of the third valve body 3-1 are overlapped, the surface of the third valve body 3-1 is an arc-shaped surface 3-3, and a third hand wheel is arranged on the third valve body 3-1;
the special-axis valve consists of a fourth valve body 4-1 and two fourth valve handles 4-2 arranged on the fourth valve body 4-1, wherein the central lines of an inlet of the fourth valve body 4-1 and an outlet of the fourth valve body 4-1 are arranged in parallel up and down, the fourth valve body 4-1 is provided with two special-axis planes 4-3, the two special-axis planes 4-3 are opposite surfaces, and a fourth hand wheel is arranged on the fourth valve body 4-1;
the angle a valve consists of a fifth valve body 5-1 and a fifth valve handle 5-2 arranged on the fifth valve body 5-1, wherein the center lines of an inlet of the fifth valve body 5-1 and an outlet of the fifth valve body 5-1 are vertically distributed, the fifth valve body 5-1 is provided with two angle planes 5-3, the two angle planes 5-3 are opposite surfaces, and a fifth hand wheel is arranged on the fifth valve body 5-1;
the angle type b valve consists of a sixth valve body 6-1 and two sixth valve handles 6-2 arranged on the sixth valve body 6-1, wherein the center lines of an inlet of the sixth valve body 6-1 and an outlet of the sixth valve body 6-1 are vertically distributed, and a sixth hand wheel and an angle type arc-shaped part 6-3 are arranged on the sixth valve handles 6-2;
The three-way type a valve consists of a seventh valve body 7-1 and a seventh valve handle 7-2 arranged on the seventh valve body 7-1, wherein an inlet of the seventh valve body 7-1 and an outlet of the seventh valve body 7-1 are not positioned on the same plane, the seventh valve body 7-1 is provided with two three-way type a planes 7-3, the two three-way type a planes 7-3 are opposite planes, and a seventh hand wheel is arranged on the seventh valve handle 7-2;
the three-way type b valve consists of an eighth valve body 8-1 and an eighth valve handle 8-2 arranged on the eighth valve body 8-1, wherein an inlet of the eighth valve body 8-1 and an outlet of the eighth valve body 8-1 are not positioned on the same plane, the eighth valve body 8-1 is provided with two three-way type b planes 8-3, the two three-way type b planes 8-4 are adjacent planes, and an eighth hand wheel and a three-way arc-shaped part 8-3 are arranged on the eighth valve handle 8-2;
step 202, determining clamped areas of the special-shaped valve:
according to the definition of the special-shaped valve structure in step 201, the measured special-shaped valve 100 is judged:
when the valve 100 to be tested belongs to the straight-through type a valve, two straight-through a planes 1-3 are used as clamped areas;
when the valve 100 to be tested belongs to the straight-through type b valve, two opposite surfaces of the regular polyhedron 2-5 are used as clamped areas;
When the valve 100 to be tested belongs to the straight-through type c valve, the arc-shaped surface 3-3 is used as a clamped area;
when the valve 100 to be tested belongs to the special valve, two special planes 4-3 are used as clamped areas;
when the valve 100 to be tested belongs to the angle type a valve, two angle type planes 5-3 are used as clamped areas;
when the valve 100 to be tested belongs to the angle type b valve, the arc surface of the angle type arc part 6-3 is used as a clamped area;
when the valve 100 to be tested belongs to the three-way type a valve, the two three-way type a planes 7-3 are used as clamped areas;
when the valve 100 belongs to the valve in the three-way type b, the arc surface of the three-way arc part 8-3 is used as a clamped area;
step three, clamping the special-shaped valve: clamping the plurality of special-shaped valves 100 to be tested on the pneumatic clamping driving mechanism and the hydraulic clamping mechanism, wherein the clamping methods of the plurality of special-shaped valves 100 to be tested on the pneumatic clamping mechanism are the same, and the clamping methods of the plurality of special-shaped valves 100 to be tested on the hydraulic clamping mechanism are the same, wherein when any special-shaped valve 100 to be tested is clamped on the pneumatic clamping mechanism, the method comprises the following steps:
Step A, the parameter setting unit 97 is used for setting the pneumatic clamping force set value of the measured special-shaped valve 100 to the industrial personal computer 23, and the industrial personal computer 23 records the pneumatic clamping force set value of the measured special-shaped valve 100 as F qs ；
Step B, the industrial personal computer 23 is used for controlling the operation of the computer according to the formula
Figure BDA0001646782010000171
Obtaining a cylinder pressure set point P qs And stored to the data memory 21; where R represents the cylinder diameter of the cylinder 200 and R represents the rod diameter of the piston rod 201;
step C, a side surface of the clamped area in the tested special-shaped valve 100 is contacted with the fixed clamping plate 203, a hydraulic clamping instruction is sent to the microcontroller 89 through the industrial personal computer 23, the microcontroller 89 controls the sixth electromagnetic valve 205 to be electrified, and simultaneously, the microcontroller 89 controls the clamping proportional valve 208 to adjust the pressure in the clamping main air supply pipe 209 to a cylinder pressure set value P qs By clamping the main air supply pipe 209 to supply air to the rod cavity of the cylinder body 200, the piston rod 201 in the cylinder body 200 is contracted, and the piston rod 201 is contracted to pull the movable clamping plate 202 to move towards the fixed clamping plate 203 along the horizontal direction, so that the movable clamping plate 202 is contacted with the other side of the clamped area in the tested special-shaped valve 100, and the tested special-shaped valve 100 is clamped;
wherein, when any valve 100 to be tested is clamped on the hydraulic clamping mechanism, the method comprises the following steps:
Step I, a hydraulic cylinder pressure test value is set to the industrial personal computer 23 through the parameter setting unit 97, a tested special valve 100 is placed between two hydraulic cylinders 300, a hydraulic clamping instruction is sent to the microcontroller 89 through the industrial personal computer 23, the microcontroller 89 controls the seventh electromagnetic valve 305 to be electrified, meanwhile, the microcontroller 89 controls the oil pump 308 to adjust the hydraulic pressure in the clamping main oil supply pipe 303, the hydraulic oil pressure in the clamping main oil supply pipe 303 is equal to the hydraulic cylinder pressure test value, the clamping rods 301 in the hydraulic cylinders 300 stretch through the clamping main oil supply pipe 303 and the clamping branch oil supply pipe 304 to feed air to rodless cavities of the hydraulic cylinders 300, and the number N of the clamping rods 301 contacted with the clamped area is N, N is a positive integer and is not more than the total number of the clamping rods 301; wherein the other side surface of the clamped area is in contact with the N clamping rods 301;
step II, a hydraulic contraction instruction is sent to the microcontroller 89 through the industrial personal computer 23, the microcontroller 89 controls the seventh electromagnetic valve 305 to be powered off, meanwhile, the microcontroller 89 controls the oil pump 308 to stop working, and the number N of the clamping rods 301 contacted with the clamped area is input to the industrial personal computer 23 through the parameter setting unit 97;
Step III, the hydraulic clamping force set value of the measured special-shaped valve 100 is set to the industrial personal computer 23 through the parameter setting unit 97, and the industrial personal computer 23 records the hydraulic clamping force set value of the measured special-shaped valve 100 as F ys ；
Step IV, the industrial personal computer 23 calculates the formula
Figure BDA0001646782010000181
Obtaining a hydraulic pressure set point P ys And stored to the data memory 21; wherein D represents the diameter of each clamping rod 301 in hydraulic cylinder 300;
step V, placing the tested special-shaped valve 100 between two hydraulic cylinders 300, sending a hydraulic clamping instruction to a microcontroller 89 through an industrial personal computer 23, controlling a seventh electromagnetic valve 305 to be electrified by the microcontroller 89, controlling an oil pump 308 to adjust the hydraulic pressure in a clamping main oil supply pipe 303 by the microcontroller 89, enabling the hydraulic oil pressure in the clamping main oil supply pipe 303 to be equal to a hydraulic clamping force set value, introducing air to a rodless cavity of the hydraulic cylinder 300 through the clamping main oil supply pipe 303 and a clamping branch oil supply pipe 304, extending a clamping rod 301 in the hydraulic cylinder 300, clamping the tested special-shaped valve 100, and locking a hydraulic lock 315;
testing the valve strength and pressure:
step 401, connecting a liquid-passing quick connector with a valve of a measured abnormal shape:
step 4011, sending a liquid-passing quick connector air supply instruction to a microcontroller 89 through the industrial personal computer 23, wherein the microcontroller 89 controls a plurality of groups of liquid-passing quick connector electromagnetic valves to be electrified, and the air supply assembly supplies air for each group of liquid-passing quick connectors;
Step 4012, connecting a plurality of groups of liquid-passing quick connectors with a plurality of tested special-shaped valves 100 respectively;
step 402, judging whether the valve strength and pressure test set values of the plurality of special-shaped valves 100 to be tested are not more than 40MPa, and executing step 403 when the valve strength and pressure test set values of the plurality of special-shaped valves 100 to be tested are not more than 40 MPa; when the valve strength pressure test set value of any one of the tested special-shaped valves 100 is greater than 40MPa, executing step 404;
step 403, when the valve strength pressure test set values of the plurality of tested special-shaped valves 100 are not greater than 40MPa, performing a low-pressure valve strength pressure test on the tested special-shaped valves 100, and performing the same low-pressure valve strength pressure test method on the plurality of tested special-shaped valves 100, wherein the low-pressure valve strength pressure test method on any one of the tested special-shaped valves 100 is as follows:
step 4031, the microcontroller 89 controls the isolation control electromagnetic valve 61 to be in a power-off state, the isolation pneumatic control valve 62 is in a normally-closed state, a first low-pressure regulating instruction is sent to the microcontroller 89 through the industrial personal computer 23, the microcontroller 89 controls the proportional pressure regulating valve 37 and the return pressure regulating valve 40 to regulate the driving air pressure, then the microcontroller 89 controls the first electromagnetic valve 39 and the second electromagnetic valve 50 to be electrified in a reciprocating manner, the air supply assembly supplies driving air for the first pneumatic pump 51, the first pneumatic pump 51 is started, and the measured special valve 100 is filled with water rapidly;
Step 4032, a second low-pressure regulating instruction is sent to the microcontroller 89 through the industrial personal computer 23, the microcontroller 89 controls the first electromagnetic valve 39 and the second electromagnetic valve 50 to be powered off, the first pneumatic pump 51 stops working, the microcontroller 89 controls the proportional pressure regulating valve 37 and the return pressure regulating valve 40 to regulate the driving air pressure, then the microcontroller 89 controls the third electromagnetic valve 38 and the fourth electromagnetic valve 53 to be powered on in a reciprocating manner, and the driving air is provided for the second pneumatic pump 52 through the air supply assembly, so that the second pneumatic pump 52 is started;
step 4033, sending a third low-pressure regulating instruction to the microcontroller 89 by the industrial personal computer 23, wherein the microcontroller 89 regulates the driving air pressure to rise by the proportional pressure regulating valve 37 and the return pressure regulating valve 40, so that the pressure at the outlet end of the low-pressure branch water supply pipe and the pressure at the outlet end of the high-pressure branch water supply pipe are equal to preset low-pressure valve strength pressure test set values;
step 4034, send the low pressure pressurize instruction to the microcontroller 89 through the industrial personal computer 23, the microcontroller 89 controls the first pressure maintaining solenoid valve 77 to be electrified, the air supply component supplies air to the low pressure branch pressure maintaining solenoid valve 78, the low pressure branch water supply pipe is in a pressure maintaining state, meanwhile, the microcontroller 89 controls the second pressure maintaining solenoid valve 68 to be electrified, the air supply component supplies air to the high pressure branch pressure maintaining solenoid valve 66, the high pressure branch pressure maintaining solenoid valve 66 is in a disconnecting state, the high pressure branch water supply pipe is in a pressure maintaining state, when reaching the low pressure maintaining time preset by the timer 26, the industrial personal computer 23 sends the low pressure relief instruction to the microcontroller 89, the microcontroller 89 controls the first pressure relief solenoid valve 81 to be electrified, the air supply component supplies air to the low pressure branch pressure relief solenoid valve 82, the low pressure branch pressure relief solenoid valve 82 is in a closing state, water in the measured special valve 100 enters the water supply box 45 through the first water drain pipe, pressure relief of the low pressure branch water supply pipe is completed, and the microcontroller 89 controls the second solenoid valve 71 to be electrified, the air supply component is in the high pressure relief state of the special-shaped water supply pipe 72 is completed through the first water drain pipe 45, and the high pressure relief valve 72 is in the closed state of the special-shaped water supply pipe is completed;
Step 4035, in the process that the low-pressure branch water supply pipe and the high-pressure branch water supply pipe are in pressure maintaining, the first water pressure detecting unit 87 detects the pressure of the outlet end of the low-pressure branch water supply pipe in real time, and sends the detected pressure of the outlet end of the low-pressure branch water supply pipe to the micro controller 89, the second water pressure detecting unit 74 detects the pressure of the outlet end of the high-pressure branch water supply pipe in real time, and sends the detected pressure of the outlet end of the high-pressure branch water supply pipe to the micro controller 89, the micro controller 89 refers to the pressure of the outlet end of the low-pressure branch water supply pipe and the pressure of the outlet end of the high-pressure branch water supply pipe as a low-pressure valve strength pressure test value and sends the low-pressure valve strength pressure test value to the industrial personal computer 23, the industrial personal computer 23 invokes a curve drawing module to draw a curve of the low-pressure valve strength pressure test value along with the low-pressure maintaining time, and the industrial personal computer 23 obtains the pressure drop of the tested special valve 100 according to the curve of the low-pressure valve strength test value;
step 4036, the industrial personal computer 23 compares the pressure drop of the measured special-shaped valve 100 with a preset low pressure drop set value, when the pressure drop of the measured special-shaped valve 100 is smaller than the preset low pressure drop set value, the valve strength of the measured special-shaped valve 100 is qualified, otherwise, the measured special-shaped valve 100 is not qualified, the industrial personal computer 23 sends a valve strength failure instruction to the microcontroller 89, and the microcontroller 89 controls the alarm 88 to alarm;
Step 404, when the valve strength pressure test set value of any one of the tested special-shaped valves 100 is greater than 40MPa, performing a high-pressure valve strength pressure test on the tested special-shaped valve 100, and performing a high-pressure valve strength pressure test method on the tested special-shaped valve 100 as follows:
step 4041, the microcontroller 89 controls the isolation control electromagnetic valve 61 to be electrified, the air supply assembly supplies air to the isolation air control valve 62, the isolation air control valve 62 is in a disconnected state, a first high-pressure regulating instruction is sent to the microcontroller 89 through the industrial personal computer 23, the microcontroller 89 controls the proportional pressure regulating valve 37 and the return pressure regulating valve 40 to regulate driving air pressure, then the microcontroller 89 controls the first electromagnetic valve 39 and the second electromagnetic valve 50 to be electrified in a reciprocating mode, and the air supply assembly supplies driving air to the first air pump 51 to enable the first air pump 51 to be started, so that the measured special valve 100 is filled with water rapidly;
step 4042, a second high-pressure regulating instruction is sent to the microcontroller 89 through the industrial personal computer 23, the microcontroller 89 controls the first electromagnetic valve 39 and the second electromagnetic valve 50 to be powered off, the first pneumatic pump 51 stops working, the microcontroller 89 controls the proportional pressure regulating valve 37 and the return pressure regulating valve 40 to regulate the driving air pressure, then the microcontroller 89 controls the third electromagnetic valve 38 and the fourth electromagnetic valve 53 to be powered on in a reciprocating manner, and the driving air is provided for the second pneumatic pump 52 through the air supply assembly, so that the second pneumatic pump 52 is started;
Step 4043, sending a third high-pressure regulating instruction to the microcontroller 89 by the industrial personal computer 23, wherein the microcontroller 89 regulates the driving air pressure to rise by the proportional pressure regulating valve 37 and the return pressure regulating valve 40, so that the pressure at the outlet end of the high-pressure branch water supply pipe is equal to a preset high-pressure valve strength pressure test set value;
step 4044, a high-pressure maintaining instruction is sent to the microcontroller 89 through the industrial personal computer 23, the microcontroller 89 controls the second pressure maintaining electromagnetic valve 68 to be electrified, the air supply component supplies air to the high-pressure branch pressure maintaining pneumatic control valve 66, the high-pressure branch pressure maintaining pneumatic control valve 66 is in a disconnection state, the high-pressure branch water supply pipe is in a pressure maintaining state, when the high-pressure maintaining time preset by the timer 26 is reached, a high-pressure relief instruction is sent to the microcontroller 89 through the industrial personal computer 23, the microcontroller 89 controls the second pressure relief electromagnetic valve 71 to be electrified, the air supply component supplies air to the high-pressure branch pressure relief pneumatic control valve 72, the high-pressure branch pressure relief pneumatic control valve 72 is in a closing state, and water of the measured special valve 100 enters the water supply tank 45 through the second water drain pipe to finish pressure relief of the high-pressure branch water supply pipe;
step 4045, in the process that the high-pressure branch water supply pipe is in pressure maintaining, the second water pressure detecting unit 74 detects the pressure of the outlet end of the high-pressure branch water supply pipe in real time, and sends the detected pressure of the outlet end of the high-pressure branch water supply pipe to the microcontroller 89, the microcontroller 89 refers to the pressure of the outlet end of the high-pressure branch water supply pipe as a high-pressure valve strength pressure test value and sends the high-pressure valve strength pressure test value to the industrial personal computer 23, the industrial personal computer 23 invokes a curve drawing module to draw a curve that the high-pressure valve strength pressure test value changes along with the high-pressure maintaining time, a high-pressure valve strength pressure test value change curve is obtained, and the industrial personal computer 23 obtains the pressure drop of the tested special valve 100 according to the high-pressure valve strength pressure test value change curve;
Step 4046, the industrial personal computer 23 compares the pressure drop of the measured special-shaped valve 100 with a preset high-pressure drop set value, and when the pressure drop of the measured special-shaped valve 100 is smaller than the preset high-pressure drop set value, the valve strength of the measured special-shaped valve 100 is qualified, the industrial personal computer 23 sends a valve strength qualification instruction to the microcontroller 89, and the microcontroller 89 controls the indicator lamp 25 to be on; otherwise, the tested special-shaped valve 100 is unqualified, the industrial personal computer 23 sends a valve strength unqualified instruction to the microcontroller 89, and the microcontroller 89 controls the alarm 88 to alarm;
step 405, the liquid-passing quick connectors are disassembled, and then, an instruction for stopping air supply is sent to the microcontroller 89 through the industrial personal computer 23, the microcontroller 89 controls a plurality of groups of electromagnetic valves of the liquid-passing quick connectors to be powered off, and the air supply assembly stops air supply for each group of liquid-passing quick connectors;
testing the valve sealing pressure:
step 501, connection of a ventilation quick connector and a valve of a measured abnormal shape, which is specifically as follows:
step 5011, sending an air supply instruction of the air-vent quick connector to a microcontroller 89 through the industrial personal computer 23, wherein the microcontroller 89 controls a plurality of groups of electromagnetic valves of the air-vent quick connector to be electrified, and the air supply assembly supplies air for each group of air-vent quick connectors;
Step 5012, connecting a plurality of groups of ventilation quick connectors with a plurality of measured special-shaped valves 100 respectively;
step 502, sending a seal pressure regulating instruction to the microcontroller 89 through the industrial personal computer 23, wherein the microcontroller 89 controls the airtight filtering pressure regulator 103 to act until a seal pressure value displayed by the airtight pressure gauge 101 connected with the outlet of the airtight filtering pressure regulator 103 meets a seal pressure set value; in the process of the motion of the airtight filtering pressure regulator 103, the first air pressure detecting unit 102 detects the sealing pressure value of the outlet of the airtight filtering pressure regulator 103 in real time, and sends the detected sealing pressure value to the microcontroller 89, and the microcontroller 89 controls the main airtight digital display meter 111 to display the sealing pressure value in real time;
step 503, a sealing test instruction is sent to the microcontroller 89 through the industrial personal computer 23, the microcontroller 89 controls the plurality of fifth electromagnetic valves 106 to be electrified, the plurality of tested special valves 100 are respectively inflated through the main air pipe and each branch air pipe, until the sealing pressure test time preset by the timer 26 is reached, the plurality of second air pressure detection units 107 respectively detect the pressures of the outlet ends of the plurality of branch air pipes in real time, the detected pressures of the outlet ends of the plurality of branch air pipes are sent to the microcontroller 89, and the microcontroller 89 respectively controls the plurality of branch air tightness digital display meters 108 to display the pressures of the outlet ends of the plurality of branch air pipes in real time; wherein the valve 100 is in an open state;
Step 504, the microcontroller 89 compares the received pressures of the outlet ends of the plurality of branch air pipes with preset sealing pressure set values, and when the pressures of the outlet ends of the branch air pipes detected by the second air pressure detecting unit 107 do not meet the preset sealing pressure set values, step 505 is executed; otherwise, go to step 506;
step 505, when the pressure at the outlet end of the branched air pipe detected by the second air pressure detecting unit 107 does not meet the preset sealing pressure set value, the sealing performance of the detected special-shaped valve 100 is indicated to be unqualified, the industrial personal computer 23 sends a sealing performance unqualified instruction to the microcontroller 89, and the microcontroller 89 controls the alarm 88 to alarm;
step 506, when the pressure at the outlet end of the branched air pipe detected by the second air pressure detecting unit 107 meets a preset sealing pressure set value, indicating that the tightness of the detected special-shaped valve 100 is qualified, the industrial personal computer 23 sends a tightness qualification instruction to the microcontroller 89, and the microcontroller 89 controls the indicator lamp 25 to be on;
step 507, disassembling the ventilation quick connectors, and then sending a ventilation quick connector air supply stopping instruction to the microcontroller 89 through the industrial personal computer 23, wherein the microcontroller 89 controls a plurality of groups of ventilation quick connector electromagnetic valves to be powered off, and the air supply assembly stops supplying air to each group of ventilation quick connectors;
Step six, disassembling and labeling the measured special-shaped valve: the microcontroller 89 controls the seventh electromagnetic valve 305 to be powered off, air is introduced into a rod cavity of the hydraulic cylinder 300, a piston rod 201 in the hydraulic cylinder 300 is contracted, a hydraulic lock 315 is unlocked, the tested special-shaped valve 100 on the hydraulic clamping mechanism is dismounted, meanwhile, the microcontroller 89 controls the sixth electromagnetic valve 205 to be powered off, air is introduced into a rodless cavity of the cylinder 200 through the clamping main air supply pipe 209, and the piston rod 201 in the cylinder 200 is extended, so that the tested special-shaped valve 100 on the pneumatic clamping mechanism is dismounted;
when the valve strength of the valve 100 to be tested is qualified and the valve tightness of the valve 100 to be tested is qualified, the industrial personal computer 23 sends a two-dimension code printing instruction to the microcontroller 89, and the microcontroller 89 controls the two-dimension code printing module 24 to print the two-dimension code and pastes the two-dimension code on the valve 100 to be tested with qualified valve strength and tightness for warehouse entry.
In this embodiment, in step 4012, the method for connecting the plurality of groups of liquid-passing quick connectors with the plurality of measured special-shaped valves 100 is the same, wherein any group of liquid-passing quick connectors is connected with the measured special-shaped valves 100, and the process is as follows:
When the inlet and the outlet of the measured special-shaped valve 100 are one, the first liquid-passing quick connector 93 is connected with the inlet of the measured special-shaped valve 100, and the second liquid-passing quick connector 94 is connected with the outlet of the measured special-shaped valve 100;
when the number of inlets of the tested special-shaped valve 100 is one, and the number of outlets of the tested special-shaped valve 100 is two, connecting the first liquid-passing quick connector 93 with the inlet of the tested special-shaped valve 100, connecting the second liquid-passing quick connector 94 with one outlet of the tested special-shaped valve 100, and connecting the standby liquid-passing quick connector with the other outlet of the tested special-shaped valve 100;
when the number of the inlets of the measured special-shaped valve 100 is two and the number of the outlets of the measured special-shaped valve 100 is one, the first liquid-passing quick connector 93 is connected with one inlet of the measured special-shaped valve 100, the standby liquid-passing quick connector is connected with the other inlet of the measured special-shaped valve 100, and the second liquid-passing quick connector 94 is connected with the outlet of the measured special-shaped valve 100.
In this embodiment, in step 5012, the methods for connecting multiple groups of the ventilation quick connectors with multiple measured special-shaped valves 100 are the same, wherein any group of ventilation quick connectors is connected with the measured special-shaped valves 100, and the process is as follows:
When the inlet and the outlet of the valve 100 to be tested are one, the first ventilation quick connector 109 is connected with the inlet of the valve 100 to be tested, and the second ventilation quick connector 110 is connected with the outlet of the valve 100 to be tested;
when the number of inlets of the tested special-shaped valve 100 is one, and the number of outlets of the tested special-shaped valve 100 is two, connecting the first ventilation quick connector 109 with the inlet of the tested special-shaped valve 100, connecting the second ventilation quick connector 110 with one outlet of the tested special-shaped valve 100, and connecting the standby ventilation quick connector with the other outlet of the tested special-shaped valve 100;
when the number of inlets of the measured special-shaped valve 100 is two, and the number of outlets of the measured special-shaped valve 100 is one, the first ventilation quick connector 109 is connected with one inlet of the measured special-shaped valve 100, the standby ventilation quick connector is connected with the other inlet of the measured special-shaped valve 100, and the second ventilation quick connector 110 is connected with the outlet of the measured special-shaped valve 100.
In this embodiment, the value range of the seal pressure set value is 0.5MPa to 0.8MPa.
In this embodiment, before the microcontroller 89 in step i and in step v controls the seventh electromagnetic valve 305 to be energized, the hydraulic oil cut-off valve 307 is operated to be opened; when the tested special valve 100 in the step I and the step V is clamped, the hydraulic oil safety valve 309 is opened when the hydraulic pressure in the clamping main oil supply pipe 303 exceeds the safety hydraulic pressure set value;
In the step I and the step V, the hydraulic pressure of the clamping main oil supply pipe 303 is detected in real time through the second clamping mechanical pressure gauge 310, so that the hydraulic pressure of the clamping main oil supply pipe 303 displayed by the second clamping mechanical pressure gauge 310 is the same as the hydraulic pressure in the clamping main oil supply pipe 303 displayed by the second clamping digital display meter 311;
in step C, the pressure in the clamp main feeding pipe 209 is detected in real time by the first clamp mechanical pressure gauge 210, so that the pressure in the clamp main feeding pipe 209 displayed by the first clamp mechanical pressure gauge 210 is the same as the hydraulic pressure of the pressure in the clamp main feeding pipe 209 displayed by the first clamp digital display meter 211.
In this embodiment, a fourth filter 83 is disposed on the first drain pipe, and the fourth filter 83 is located between the inlet end of the first drain pipe and the pressure-maintaining pneumatic control valve 82 of the low-pressure branch.
In this embodiment, a fifth filter 73 is disposed on the second drain pipe, and the fifth filter 73 is located between the inlet end of the second drain pipe and the pressure-maintaining pneumatic control valve 66 of the high-pressure branch.
In this embodiment, the dispersing pipe 91 is provided with a plurality of protection pipes 92, one ends of the protection pipes 92 are closed, and the protection pipes 92 are provided with a standby safety valve 76.
When the water pressure of the outlet end of the high-pressure branch water supply pipe is not more than 63MPa, and the water pressure of the outlet end of the low-pressure branch water supply pipe is not more than 40MPa.
When the valve strength and pressure test set values of the measured special-shaped valves 100 are not more than 40MPa, the high-pressure branch water supply pipe and the low-pressure branch water supply pipe can supply water to the measured special-shaped valves 100 for testing; when the valve strength pressure test set value of a certain tested special valve 100 is not more than 40MPa, the isolation assembly is operated to isolate the low-pressure branch water supply pipe, and only the high-pressure branch water supply pipe supplies water for the tested special valve 100 for testing.
When two inlets of the special-shaped valve 100 to be tested are needed, in the actual use process, the two inlets of the special-shaped valve 100 to be tested are respectively tested for valve body strength pressure and valve body sealing pressure according to the step four and the step five.
When the valve body strength pressure and the valve body sealing pressure of the valve 100 to be tested are tested, the valve 100 to be tested is in an open state, and after the test is finished, the valve 100 to be tested is turned off.
In this embodiment, the first mechanical pressure gauge 85 detects the water pressure at the outlet end of the low-pressure branch water supply pipe in real time, so that the water pressure at the outlet end of the low-pressure branch water supply pipe displayed by the first mechanical pressure gauge 85 is the same as the water pressure at the outlet end of the low-pressure branch water supply pipe displayed by the low-pressure digital display meter 86;
The second mechanical pressure gauge 64 detects the water pressure at the inlet end of the high-pressure branch water supply pipe in real time, so that the water pressure at the inlet end of the high-pressure branch water supply pipe displayed by the second mechanical pressure gauge 64 is the same as the water pressure at the inlet end of the high-pressure branch water supply pipe displayed by the high-pressure digital display gauge 63;
the third mechanical pressure gauge 70 detects the water pressure at the outlet end of the high-pressure branch water supply pipe in real time, so that the water pressure at the outlet end of the high-pressure branch water supply pipe, which is displayed by the third mechanical pressure gauge 70, is the same as the water pressure at the outlet end of the high-pressure branch water supply pipe, which is displayed by the high-pressure outlet digital display gauge 75;
in this embodiment, the third water pressure detecting unit 60 detects the water pressure at the inlet end of the high-pressure branch water supply pipe in real time, and sends the detected water pressure at the inlet end of the high-pressure branch water supply pipe to the micro controller 89, and the micro controller 89 controls the high-pressure inlet digital display meter 63 to display the water pressure at the inlet end of the high-pressure branch water supply pipe.
In this embodiment, the safety of the high-pressure branch water supply pipe is improved by detecting the water pressure at the inlet end of the high-pressure branch water supply pipe and the water pressure at the outlet end of the high-pressure branch water supply pipe.
In this embodiment, the first mechanical pressure gauge 85, the second mechanical pressure gauge 64 and the third mechanical pressure gauge 70 are respectively corresponding to the low-pressure digital display gauge 86, the high-pressure digital display gauge 63 and the high-pressure output digital display gauge 75, so that the water pressure at the outlet end of the low-pressure branch water supply pipe, the water pressure at the inlet end of the high-pressure branch water supply pipe and the water pressure at the outlet end of the high-pressure branch water supply pipe meet the test requirements, and the first mechanical pressure gauge 85, the second mechanical pressure gauge 64 and the third mechanical pressure gauge 70 do not need to be powered to be suitable for checking when power is suddenly cut off, thereby improving the safety.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any simple modification, variation and equivalent structural changes made to the above embodiment according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.

Claims (9)

1. An on-line test system for special-shaped valve pressure is characterized in that: the hydraulic pressure testing device comprises a frame, a clamping device for clamping a plurality of special-shaped valves (100) to be tested, a hydraulic pressure testing device for testing the valve strength and the pressure of the special-shaped valves (100) to be tested, a pneumatic pressure testing device for testing the sealing pressure of the special-shaped valves (100) to be tested, and a monitoring device for monitoring the clamping device, the hydraulic pressure testing device and the pneumatic pressure testing device, wherein the clamping device, the hydraulic pressure testing device and the pneumatic pressure testing device are all arranged on the frame, and a plurality of groups of liquid-passing quick connectors connected with the special-shaped valves (100) to be tested and a plurality of groups of air-passing quick connectors connected with the special-shaped valves (100) to be tested are arranged on the frame;
The clamping device comprises a pneumatic clamping device and a hydraulic clamping device, the pneumatic clamping device comprises a pneumatic clamping mechanism and a pneumatic clamping driving mechanism for driving the pneumatic clamping mechanism, the hydraulic clamping device comprises a hydraulic clamping mechanism and a hydraulic clamping driving mechanism for driving the hydraulic clamping mechanism, the number of the pneumatic clamping mechanisms is multiple, the number of the hydraulic clamping mechanisms is multiple, and the sum of the number of the pneumatic clamping mechanisms and the number of the hydraulic clamping mechanisms is the same as the number of the tested special-shaped valves (100);
the water pressure testing device comprises a water supply mechanism, a pressurizing mechanism and a pressure release mechanism, wherein the water supply mechanism comprises a water supply tank (45), a main water supply pipe connected with the water supply tank (45), a dispersing pipe (91) connected with the main water supply pipe, a low-pressure branch water supply pipe and a high-pressure branch water supply pipe, wherein the low-pressure branch water supply pipe and the high-pressure branch water supply pipe are connected with the dispersing pipe (91) and are used for supplying water to a plurality of tested special-shaped valves (100), an isolating component is arranged at the inlet of the dispersing pipe (91) and the low-pressure branch water supply pipe, at least one of the low-pressure branch water supply pipe and the high-pressure branch water supply pipe is respectively arranged on the low-pressure branch water supply pipe, a low-pressure branch pressure maintaining component and a high-pressure branch water supply component are arranged on the high-pressure branch water supply pipe, the pressure release mechanism comprises a low-pressure branch pressure releasing component arranged at the outlet end of the low-pressure branch water supply pipe and a high-pressure branch pressure releasing component arranged at the outlet end of the high-pressure branch water supply pipe, a first water pressure detecting unit (87) is arranged at the outlet end of the low-pressure branch water supply pipe, and a second water pressure detecting unit (74) is arranged at the outlet end of the high-pressure branch water supply pipe;
The pressurizing mechanism comprises an air supply assembly, a proportional pressure regulating valve (37) and a return pressure regulating valve (40) for regulating the driving air pressure output by the air supply assembly, a first pneumatic pump (51) and a second pneumatic pump (52) for pressurizing the hydraulic pressure in the main water supply pipe, and a pneumatic pump control assembly for controlling the first pneumatic pump (51) and the second pneumatic pump (52), wherein the pneumatic pump control assembly comprises a first electromagnetic valve (39) arranged at an air inlet of the first pneumatic pump (51), a second electromagnetic valve (50) arranged at an air outlet of the first pneumatic pump (51), a third electromagnetic valve (38) arranged at an air inlet of the second pneumatic pump (52) and a fourth electromagnetic valve (53) arranged at an air outlet of the second pneumatic pump (52);
the air pressure testing device comprises a main air pipe and a plurality of branch air pipes connected with the outlets of the main air pipe, wherein a first air pressure detecting unit (102) is arranged on the main air pipe, a second air pressure detecting unit (107) is arranged on each branch air pipe, and a fifth electromagnetic valve (106) is arranged on each branch air pipe;
each group of liquid-passing quick connectors comprises a first liquid-passing quick connector (93), a second liquid-passing quick connector (94) and a standby liquid-passing quick connector, each group of liquid-passing quick connectors comprises a first liquid-passing quick connector (109), a second liquid-passing quick connector (110) and a standby liquid-passing quick connector, a liquid-passing joint electromagnetic valve is arranged on a gas supply pipe for supplying gas to each group of liquid-passing quick connectors by the gas supply assembly, the first liquid-passing quick connector (93) is connected with an outlet end of a low-pressure branch water supply pipe and an outlet end of a high-pressure branch water supply pipe, and the first liquid-passing quick connector (109) is connected with an outlet end of the branch gas pipe;
The monitoring device comprises a microcontroller (89) and a parameter setting unit (97) and a communication module (22) which are respectively connected with the microcontroller (89), wherein the microcontroller (89) is in data communication with an industrial personal computer (23) through the communication module (22), the input end of the microcontroller (89) is connected with a timer (26), a third air pressure detection unit (34) for detecting the output pressure of the air supply assembly, a first clamping force detection unit (27) for detecting the first clamping force between the pneumatic clamping mechanism and a tested special-shaped valve (100), a second clamping force detection unit (28) for detecting the second clamping force between the hydraulic clamping mechanism and the tested special-shaped valve (100), and a first liquid level detection unit (46) for detecting the liquid level in a water supply tank (45), the output end of the microcontroller (89) is connected with an alarm (88), a water inlet solenoid valve (41) for controlling the water adding of the water supply tank (45), a sixth solenoid valve (205) for controlling the pneumatic clamping driving mechanism, a seventh solenoid valve (305) for controlling the hydraulic clamping mechanism, and a seventh solenoid valve (305) for controlling the hydraulic clamping mechanism, the same number of solenoid valves (39), the same number of the first solenoid valves (305), and the same number of the first solenoid valves (305) and the same number of the hydraulic clamping mechanisms (39) The second electromagnetic valve (50), the third electromagnetic valve (38), the fourth electromagnetic valve (53), the fifth electromagnetic valve (106), the sixth electromagnetic valve (205), the seventh electromagnetic valve (305), the low-pressure branch pressure maintaining assembly, the high-pressure branch pressure maintaining assembly, the low-pressure branch pressure releasing assembly, the high-pressure branch pressure releasing assembly, the isolation assembly, the liquid-through joint electromagnetic valve and the air-through joint electromagnetic valve are controlled by a microcontroller (89);
The pneumatic clamping driving mechanism is a clamping cylinder, the clamping cylinder comprises a cylinder body (200) and a piston rod (201) with one end extending out of the cylinder body (200), the pneumatic clamping mechanism comprises a fixed clamping plate (203) fixedly connected with the cylinder body (200), and a movable clamping plate (202) sleeved at one end of the piston rod (201) and capable of being close to or far away from the fixed clamping plate (203), the fixed clamping plate (203) and the movable clamping plate (202) are distributed relatively in parallel, and clamping blocks (204) for clamping the measured special-shaped valve are arranged on opposite surfaces of the fixed clamping plate (203) and the movable clamping plate (202); the clamping air supply pipeline for supplying air to the cylinder body (200) is arranged in the frame and comprises a clamping main air supply pipe (209) connected with a compressed air source and a plurality of clamping branch air supply pipes (206) connected between the clamping main air supply pipe (209) and the cylinder body (200), a clamping filter (213), a first clamping digital display meter (211), a first clamping mechanical pressure meter (210), a clamping proportional valve (208) and a clamping safety valve (207) are arranged on the clamping main air supply pipe (209), a first clamping pressure detection unit (212) for detecting the pressure in the clamping main air supply pipe (209), each sixth electromagnetic valve (205) is respectively positioned on each clamping branch air supply pipe (206), the first clamping digital display meter (211) is positioned on the frame, and the first clamping digital display meter (211) and the first clamping pressure detection unit (212) are connected with the microcontroller (89);
The hydraulic clamping driving mechanism comprises two symmetrically arranged hydraulic cylinders (300), the hydraulic clamping mechanism comprises two groups of clamping components which are respectively arranged on the two hydraulic cylinders (300), each group of clamping components comprises a plurality of clamping rods (301) with one ends capable of contracting or extending out of the hydraulic cylinders (300), and the clamping rods (301) are arranged in a plurality of rows and a plurality of columns; the hydraulic oil supply system is characterized in that a hydraulic oil tank (302) for supplying hydraulic oil to the hydraulic cylinder (300), a clamping main oil supply pipe (303) connected with the hydraulic oil tank (302) and a plurality of clamping branch oil supply pipes (304) connected between the clamping main oil supply pipe (303) and the hydraulic cylinders (300) are arranged in the rack, the clamping branch oil supply pipe (304) is connected with the two hydraulic cylinders (300), a seventh electromagnetic valve (305) is positioned on the clamping branch oil supply pipe (304), a hydraulic oil filter (306), a hydraulic oil stop valve (307), a hydraulic oil safety valve (309), an oil pump (308), a second clamping mechanical pressure gauge (310) and an oil supply check valve (313) are arranged on the clamping main oil supply pipe (303), a second clamping pressure detection unit (312) for detecting the pressure in the clamping main oil supply pipe (303), a hydraulic lock (304) is arranged on the clamping branch oil supply pipe, a second clamping digital display oil tank (311) for displaying the pressure in the clamping main oil supply pipe (303) is arranged on the rack, an oil inlet valve (314) is arranged in the clamping main oil supply pipe (303), an oil inlet unit (314) is arranged at the position of the second electromagnetic valve (314), and an oil inlet unit (316) is arranged at the inlet The second clamping digital display meter (311) and the second clamping pressure detection unit (312) are connected with the microcontroller (89);
The main air pipe is provided with an airtight filtering voltage regulator (103), a main airtight digital display meter (111), an airtight pressure meter (101), an airtight safety valve (112) and a pressure stabilizing tank (104), each branch air pipe is provided with an airtight filter (105) and a branch airtight digital display meter (108), and the airtight filtering voltage regulator (103), the airtight filter (105) and the branch airtight digital display meter (108) are connected with the microcontroller (89);
the air supply assembly comprises a compressed air interface (30), a first pressurizing main air pipe connected with the compressed air interface (30) and an air source processing assembly arranged on the first pressurizing main air pipe, wherein the output end of the air source processing assembly is connected with a second pressurizing main air pipe and a third pressurizing main air pipe, the output end of the second pressurizing main air pipe is connected with a first driving air pipe and a second driving air pipe, the proportional pressure regulating valve (37) is positioned on the first driving air pipe, the first driving air pipe is connected with an air inlet of a first air pump (51) through a first pressurizing pipe, the first driving air pipe is connected with an air inlet of a second air pump (52) through a second pressurizing pipe, the second driving air pipe is connected with an air outlet of the first air pump (51) through a first return pipe, the return air regulating valve (40) is positioned on the second driving air pipe, the third pressurizing main air pipe is respectively a first electromagnetic valve (39), a third electromagnetic valve (38), a low pressure maintaining assembly, a low pressure branch circuit assembly, a second electromagnetic valve (36) and a pressure regulating valve (38) are positioned on the first electromagnetic valve (35) and the second electromagnetic valve (35), the fourth electromagnetic valve (53) is positioned on the second return pipe;
The air source treatment assembly comprises a compressed air filter (31), a compressed air one-way valve (32) and a surge tank (33).
2. The profiled valve pressure on-line test system of claim 1, wherein: a buffer tube (59) is arranged between the output end of the main water supply pipe and the dispersing tube (91), and a main cut-off valve (48), a first filter (49) and a first safety valve (54) are sequentially arranged on the main water supply pipe along the liquid flowing direction;
the low-pressure branch water supply assembly comprises a second filter (79), a second safety valve (80), a first manual unloading valve (84) and a first mechanical pressure gauge (85) which are arranged on the low-pressure branch water supply pipe and sequentially arranged in the liquid flowing direction, the high-pressure branch water supply assembly comprises a third water pressure detection unit (60), a second mechanical pressure gauge (64), a third safety valve (65), a third filter (67), a second manual unloading valve (69) and a third mechanical pressure gauge (70) which are arranged on the high-pressure branch water supply pipe and sequentially arranged in the liquid flowing direction, a low-pressure digital display meter (86) which displays the water pressure of the outlet end of the low-pressure branch water supply pipe, a high-pressure outlet digital display meter (75) which displays the water pressure of the outlet end of the high-pressure branch water supply pipe and a high-pressure digital display meter (63) which displays the water pressure of the inlet end of the high-pressure branch water supply pipe are arranged on the rack, and the low-pressure digital display meter (86), the high-pressure outlet digital display meter (75) and the high-pressure display meter (89) are controlled by the microcontroller (89) and are connected with the microcontroller (89);
The low-pressure branch pressure maintaining component is located between the dispersing pipe (91) and the second filter (79), and the high-pressure branch pressure maintaining component is located between the third safety valve (65) and the third filter (67).
3. The profiled valve pressure on-line test system of claim 1, wherein: the low-pressure branch pressure maintaining assembly comprises a low-pressure branch pressure maintaining pneumatic control valve (78) and a first pressure maintaining electromagnetic valve (77) arranged on an air supply pipe for supplying air to the low-pressure branch pressure maintaining pneumatic control valve (78) by the air supply assembly, the low-pressure branch pressure maintaining pneumatic control valve (78) is positioned on the low-pressure branch water supply pipe, and the low-pressure branch pressure maintaining pneumatic control valve (78) is a normally closed pneumatic control valve; the low-pressure branch pressure relief assembly comprises a first water drain pipe connected with the outlet end of the low-pressure branch water supply pipe, a low-pressure branch pressure relief pneumatic control valve (82) arranged on the first water drain pipe and a first pressure relief electromagnetic valve (81) arranged on an air supply pipe for supplying air to the low-pressure branch pressure relief pneumatic control valve (82) by the air supply assembly, the outlet end of the first water drain pipe is connected with a water supply tank (45), the low-pressure branch pressure relief pneumatic control valve (82) is a normally open pneumatic control valve, and both the first pressure relief electromagnetic valve (77) and the first pressure relief electromagnetic valve (81) are controlled by the microcontroller (89);
The high-pressure branch pressure maintaining assembly comprises a high-pressure branch pressure maintaining pneumatic control valve (66) and a second pressure maintaining electromagnetic valve (68) arranged on an air supply pipe for supplying air to the high-pressure branch pressure maintaining pneumatic control valve (66) by the air supply assembly, the high-pressure branch pressure maintaining pneumatic control valve (66) is positioned on the high-pressure branch water supply pipe, and the high-pressure branch pressure maintaining pneumatic control valve (66) is a normally closed pneumatic control valve; the high-pressure branch pressure relief assembly comprises a second water drain pipe connected with the outlet end of the high-pressure branch water supply pipe, a high-pressure branch pressure relief pneumatic control valve (72) arranged on the second water drain pipe and a second pressure relief electromagnetic valve (71) arranged on an air supply pipe for supplying air to the high-pressure branch pressure relief pneumatic control valve (72) by the air supply assembly, the outlet end of the second water drain pipe is connected with the water supply tank (45), and the high-pressure branch pressure relief pneumatic control valve (72) is a normally open pneumatic control valve;
the isolation assembly comprises isolation pneumatic control valves (62) arranged on the dispersing pipes (91) and positioned at the inlets of the low-pressure branch water supply pipes, and isolation control electromagnetic valves (61) arranged on the air supply pipes of the air supply assembly for supplying air to the isolation pneumatic control valves (62), wherein the isolation control electromagnetic valves (61) are normally closed pneumatic control valves, and the second pressure maintaining electromagnetic valves (68), the second pressure relief electromagnetic valves (71) and the isolation control electromagnetic valves (61) are all in control connection through the microcontroller (89).
4. The profiled valve pressure on-line test system of claim 2, wherein: the main water supply pipe comprises a first main water supply pipe connected between a water supply tank (45) and a first pneumatic pump (51), a second main water supply pipe connected between the first pneumatic pump (51) and a second pneumatic pump (52) and a third main water supply pipe connected between the second pneumatic pump (52) and a buffer pipe (59), the main cut-off valve (48) and the first filter (49) are positioned on the first main water supply pipe, one end of the first main water supply pipe is connected with an outlet of the water supply tank (45), the other end of the first main water supply pipe is provided with a first one-way valve (55), one end of the second main water supply pipe is provided with a second one-way valve (56), the other end of the second main water supply pipe is provided with a third one-way valve (57), one end of the third main water supply pipe is provided with a fourth one-way valve (58), the first pneumatic pump (51) is connected between the first one-way valve (55) and the second one-way valve (56), the second pneumatic pump (52) is connected between the third one-way valve (57) and the third one-way valve (59) and one end of the buffer pipe (59);
The inlet of supply tank (45) is provided with inlet tube (43), be provided with inlet filter (42) on inlet tube (43), inlet solenoid valve (41) are located on the inlet tube, the top of supply tank (45) is provided with air cleaner (44), be provided with high liquid level warning line and low liquid level warning line in supply tank (45), the bottom of supply tank (45) is provided with the blow off pipe, be provided with blowoff valve (47) on the blow off pipe, first liquid level detection unit (46) are located in supply tank (45).
5. A method of pressure on-line testing of a profiled valve using the system of claim 1, wherein: the method comprises the following steps:
step one, preparing work before testing:
step 101, checking the water pressure testing device and the air pressure testing device: checking the water pressure testing device and the air pressure testing device pipeline, determining that the water pressure testing device and the air pressure testing device pipeline are normal, powering up to initialize the water pressure testing device, the air pressure testing device and the monitoring device, and determining that all parts of the water pressure testing device and the air pressure testing device are normal;
step 102, connection of a compressed air source and addition of a test solution: connecting a compressed air source of 0.7MPa with the air supply assembly, connecting a water supply source with a water supply tank (45), sending a water adding instruction to a microcontroller (89) through an industrial personal computer (23), and controlling a water inlet electromagnetic valve (41) to be electrified by the microcontroller (89), and adding water into the water supply tank (45) until a liquid level value detected by a first liquid level detection unit (46) meets a preset liquid level set value;
Step two, defining a special-shaped valve and determining a clamped area of the special-shaped valve:
step 201, defining a special-shaped valve structure:
the special-shaped valve comprises a straight-through valve, a different-axis valve, an angle valve and a three-way valve, wherein the straight-through valve comprises a straight-through type a valve, a straight-through type b valve and a straight-through type c valve, the angle valve comprises an angle type a valve and an angle type b valve, and the three-way valve comprises a three-way type a valve and a three-way type b valve;
the straight-through type a valve consists of a first valve body (1-1) and a first valve handle (1-2) arranged on the first valve body (1-1), wherein the central line of an inlet of the first valve body (1-1) and an outlet of the first valve body (1-1) are overlapped, the first valve body (1-1) is provided with two straight-through a planes (1-3), the two straight-through a planes (1-3) are opposite surfaces, and a first hand wheel is arranged on the first valve handle (1-2);
the straight-through type b valve consists of a second valve body (2-1), a second valve handle (2-2) arranged on the second valve body (2-1) and a sewage draining part (2-4) arranged on the second valve body (2-1), wherein the central line of an inlet of the second valve body (2-1) and an outlet of the second valve body (2-1) are overlapped, the second valve body (2-1) is provided with a straight-through b plane (2-3), the second valve handle (2-2) is provided with a regular polyhedron (2-5), and the second valve handle (2-2) is provided with a second hand wheel;
The straight-through type c valve consists of a third valve body (3-1) and a third valve handle (3-2) arranged on the third valve body (3-1), wherein the center line of an inlet of the third valve body (3-1) and the center line of an outlet of the third valve body (3-1) are overlapped, the surface of the third valve body (3-1) is an arc-shaped surface (3-3), and a third hand wheel is arranged on the third valve body (3-1);
the special-axis valve consists of a fourth valve body (4-1) and two fourth valve handles (4-2) arranged on the fourth valve body (4-1), wherein the central lines of an inlet of the fourth valve body (4-1) and an outlet of the fourth valve body (4-1) are arranged in parallel up and down, the fourth valve body (4-1) is provided with two special-axis planes (4-3), the two special-axis planes (4-3) are opposite surfaces, and a fourth hand wheel is arranged on the fourth valve body (4-1);
the angle type valve a consists of a fifth valve body (5-1) and a fifth valve handle (5-2) arranged on the fifth valve body (5-1), wherein the center lines of an inlet of the fifth valve body (5-1) and an outlet of the fifth valve body (5-1) are vertically distributed, the fifth valve body (5-1) is provided with two angle type planes (5-3), the two angle type planes (5-3) are opposite surfaces, and a fifth hand wheel is arranged on the fifth valve body (5-1);
The angle type b valve consists of a sixth valve body (6-1) and two sixth valve handles (6-2) arranged on the sixth valve body (6-1), wherein the center lines of an inlet of the sixth valve body (6-1) and an outlet of the sixth valve body (6-1) are vertically distributed, and the sixth valve handles (6-2) are provided with a sixth hand wheel and angle type arc-shaped parts (6-3);
the three-way type a valve consists of a seventh valve body (7-1) and a seventh valve handle (7-2) arranged on the seventh valve body (7-1), wherein an inlet of the seventh valve body (7-1) and an outlet of the seventh valve body (7-1) are not positioned on the same plane, the seventh valve body (7-1) is provided with two three-way type a planes (7-3), the two three-way type a planes (7-3) are opposite planes, and a seventh hand wheel is arranged on the seventh valve handle (7-2);
the three-way type b valve consists of an eighth valve body (8-1) and an eighth valve handle (8-2) arranged on the eighth valve body (8-1), wherein an inlet of the eighth valve body (8-1) and an outlet of the eighth valve body (8-1) are not positioned on the same plane, the eighth valve body (8-1) is provided with two three-way type b planes (8-4), the two three-way type b planes (8-4) are adjacent planes, and an eighth hand wheel and a three-way arc-shaped part (8-3) are arranged on the eighth valve handle (8-2);
Step 202, determining clamped areas of the special-shaped valve:
according to the definition of the special-shaped valve structure in the step 201, judging the tested special-shaped valve (100):
when the tested special-shaped valve (100) belongs to the straight-through type a valve, taking two straight-through a planes (1-3) as clamped areas;
when the tested special-shaped valve (100) belongs to the straight-through type b valve, two opposite surfaces of the regular polyhedron (2-5) are used as clamped areas;
when the valve (100) to be tested belongs to the straight-through type c valve, the arc-shaped surface (3-3) is used as a clamped area;
when the tested special-shaped valve (100) belongs to the special-shaped valve, two special-shaped planes (4-3) are used as clamped areas;
when the valve (100) to be tested belongs to the angle type a valve, two angle type planes (5-3) are used as clamped areas;
when the valve (100) to be tested belongs to the angle type b valve, the arc surface of the angle type arc part (6-3) is used as a clamped area;
when the valve (100) to be tested belongs to the three-way type a valve, the two three-way type a planes (7-3) are used as clamped areas;
when the valve (100) of the measured abnormal shape belongs to the valve of the three-way type b, the arc surface of the arc-shaped part (8-3) of the three-way is used as a clamped area;
Step three, clamping the special-shaped valve: clamping a plurality of measured special-shaped valves (100) on the pneumatic clamping driving mechanism and the hydraulic clamping mechanism, wherein the clamping methods of the plurality of measured special-shaped valves (100) clamped on the pneumatic clamping mechanism are the same, and the clamping methods of the plurality of measured special-shaped valves (100) clamped on the hydraulic clamping mechanism are the same, wherein when any measured special-shaped valve (100) is clamped on the pneumatic clamping mechanism, the method comprises the following steps:
step A, setting a pneumatic clamping force set value of the tested special-shaped valve (100) to an industrial personal computer (23) through a parameter setting unit (97), and marking the pneumatic clamping force set value of the tested special-shaped valve (100) as F by the industrial personal computer (23) qs ；
Step B, the industrial personal computer (23) is used for controlling the operation according to the formula
Figure FDA0004263788340000111
Obtaining a cylinder pressure set point P qs And store to a data store (21); wherein R represents the cylinder diameter of the cylinder body (200), and R represents the rod diameter of the piston rod (201);
step C, a side surface of the clamped area in the tested special-shaped valve (100) is contacted with a fixed clamping plate (203), a hydraulic clamping instruction is sent to a microcontroller (89) through an industrial personal computer (23), the microcontroller (89) controls a sixth electromagnetic valve (205) to be electrified, and meanwhile, the microcontroller (89) controls a clamping proportional valve (208) to adjust the pressure in a clamping main air supply pipe (209) to a cylinder pressure set value P qs The main air supply pipe (209) is clamped to supply air to the rod cavity of the cylinder body (200), a piston rod (201) in the cylinder body (200) is contracted, and the piston rod (201) is contracted to pull the movable clamping plate (202) to move towards the fixed clamping plate (203) along the horizontal direction, so that the movable clamping plate (202) is contacted with the other side of the clamped area in the tested special-shaped valve (100), and the tested special-shaped valve (100) is clamped;
wherein, when any valve (100) to be tested is clamped on the hydraulic clamping mechanism, the method comprises the following steps:
setting a hydraulic cylinder pressure test value to an industrial personal computer (23) through a parameter setting unit (97), placing a tested special-shaped valve (100) between two hydraulic cylinders (300), sending a hydraulic clamping instruction to a microcontroller (89) through the industrial personal computer (23), controlling a seventh electromagnetic valve (305) to be electrified by the microcontroller (89), controlling an oil pump (308) to regulate the hydraulic pressure in a clamping main oil supply pipe (303) by the microcontroller (89), enabling the hydraulic oil pressure in the clamping main oil supply pipe (303) to be equal to the hydraulic cylinder pressure test value, feeding air to a rodless cavity of the hydraulic cylinder (300) through the clamping main oil supply pipe (303) and a clamping branch oil supply pipe (304), and extending clamping rods (301) in the hydraulic cylinder (300), wherein the number N of the clamping rods (301) are contacted with one side surface of a clamped area in the tested special-shaped valve (100), and the number N of the clamping rods (301) contacted with the clamped area is obtained as a positive integer, and N is not greater than the total number of the clamping rods (301); wherein the other side surface of the clamped area is contacted with N clamping rods (301);
Step II, a hydraulic contraction instruction is sent to a microcontroller (89) through an industrial personal computer (23), the microcontroller (89) controls a seventh electromagnetic valve (305) to be powered off, meanwhile, the microcontroller (89) controls an oil pump (308) to stop working, and the number N of clamping rods (301) contacted with the clamped area is input to the industrial personal computer (23) through a parameter setting unit (97);
step III, setting a hydraulic clamping force set value of the tested special-shaped valve (100) to the industrial personal computer (23) through the parameter setting unit (97), and recording the hydraulic clamping force set value of the tested special-shaped valve (100) as F by the industrial personal computer (23) ys ；
Step IV, the industrial personal computer (23) is used for controlling the operation according to the formula
Figure FDA0004263788340000121
Obtaining a hydraulic pressure set point P ys And store to a data store (21); wherein D represents the diameter of each clamping rod (301) in the hydraulic cylinder (300);
step V, placing the tested special-shaped valve (100) between two hydraulic cylinders (300), sending a hydraulic clamping instruction to a microcontroller (89) through an industrial personal computer (23), controlling a seventh electromagnetic valve (305) to be electrified by the microcontroller (89), controlling an oil pump (308) to adjust the hydraulic pressure in a clamping main oil supply pipe (303) simultaneously, enabling the hydraulic oil pressure in the clamping main oil supply pipe (303) to be equal to a hydraulic clamping force set value, feeding air to a rodless cavity of the hydraulic cylinder (300) through the clamping main oil supply pipe (303) and a clamping branch oil supply pipe (304), extending a clamping rod (301) in the hydraulic cylinder (300), clamping the tested special-shaped valve (100), and locking a hydraulic lock (315);
Testing the valve strength and pressure:
step 401, connecting a liquid-passing quick connector with a valve of a measured abnormal shape:
step 4011, sending a liquid-passing quick connector air supply instruction to a microcontroller (89) through an industrial personal computer (23), wherein the microcontroller (89) controls a plurality of groups of liquid-passing quick connector electromagnetic valves to be electrified, and the air supply assembly supplies air for each group of liquid-passing quick connectors;
step 4012, connecting a plurality of groups of liquid-passing quick connectors with a plurality of tested special-shaped valves (100) respectively;
step 402, judging whether the valve strength and pressure test set values of the plurality of special-shaped valves (100) to be tested are not more than 40MPa, and executing step 403 when the valve strength and pressure test set values of the plurality of special-shaped valves (100) to be tested are not more than 40 MPa; executing step 404 when the valve strength pressure test set value of any tested special valve (100) is greater than 40 MPa;
step 403, when the valve strength and pressure test set values of the plurality of tested special-shaped valves (100) are not greater than 40MPa, performing a low-pressure valve strength and pressure test on the tested special-shaped valves (100), wherein the low-pressure valve strength and pressure test methods on the plurality of tested special-shaped valves (100) are the same, and the low-pressure valve strength and pressure test method on any one tested special-shaped valve (100) is as follows:
Step 4031, a microcontroller (89) controls the isolation assembly to be in a power-off state, a first low-pressure regulating instruction is sent to the microcontroller (89) through the industrial personal computer (23), the microcontroller (89) controls the proportional pressure regulating valve (37) and the return pressure regulating valve (40) to regulate driving air pressure, then the microcontroller (89) controls the first electromagnetic valve (39) and the second electromagnetic valve (50) to be electrified in a reciprocating mode, driving air is provided for the first air pump (51) through the air supply assembly, the first air pump (51) is started, and the measured special-shaped valve (100) is filled with water rapidly;
step 4032, a second low-pressure regulating instruction is sent to a microcontroller (89) through an industrial personal computer (23), the microcontroller (89) controls the first electromagnetic valve (39) and the second electromagnetic valve (50) to be powered off, the first pneumatic pump (51) stops working, the microcontroller (89) controls the proportional pressure regulating valve (37) and the return pressure regulating valve (40) to regulate the driving air pressure, then the microcontroller (89) controls the third electromagnetic valve (38) and the fourth electromagnetic valve (53) to be powered on in a reciprocating mode, and the air supply assembly supplies driving air for the second pneumatic pump (52) to enable the second pneumatic pump (52) to be started;
step 4033, a third low-pressure regulating instruction is sent to a microcontroller (89) through an industrial personal computer (23), and the microcontroller (89) regulates the driving air pressure to rise through a proportional pressure regulating valve (37) and a return pressure regulating valve (40) so that the pressure at the outlet end of the low-pressure branch water supply pipe and the pressure at the outlet end of the high-pressure branch water supply pipe are equal to preset low-pressure valve strength pressure test set values;
Step 4034, a low-pressure maintaining instruction is sent to a microcontroller (89) through an industrial personal computer (23), the microcontroller (89) controls the action of the low-pressure branch pressure maintaining component, the low-pressure branch water supply pipe is in a pressure maintaining state, meanwhile, the microcontroller (89) controls the action of the high-pressure branch pressure maintaining component, the high-pressure branch water supply pipe is in a pressure maintaining state, when the low-pressure maintaining time preset by a timer (26) is reached, a low-pressure releasing instruction is sent to the microcontroller (89) through the industrial personal computer (23), the microcontroller (89) controls the action of the low-pressure branch pressure releasing component, water in the measured special valve (100) is released into a water supply tank (45), pressure release of the low-pressure branch water supply pipe is completed, meanwhile, the microcontroller (89) controls the action of the high-pressure branch pressure releasing component, and water released by the measured special valve (100) is released into the water supply tank (45), and pressure release of the high-pressure branch water supply pipe is completed;
step 4035, in the process that the low-pressure branch water supply pipe and the high-pressure branch water supply pipe are in pressure maintaining, a first water pressure detection unit (87) detects the pressure of the outlet end of the low-pressure branch water supply pipe in real time, the detected pressure of the outlet end of the low-pressure branch water supply pipe is sent to a microcontroller (89), a second water pressure detection unit (74) detects the pressure of the outlet end of the high-pressure branch water supply pipe in real time, the detected pressure of the outlet end of the high-pressure branch water supply pipe is sent to the microcontroller (89), the microcontroller (89) refers to the pressure of the outlet end of the low-pressure branch water supply pipe and the pressure of the outlet end of the high-pressure branch water supply pipe as a low-pressure valve strength pressure test value and sends the low-pressure valve strength test value to an industrial personal computer (23), an industrial personal computer (23) draws a curve that the low-pressure valve strength test value changes along with the low-pressure maintaining time, and the industrial personal computer (23) obtains the pressure drop of the tested special valve (100) according to the low-pressure valve strength pressure test value change curve;
Step 4036, the industrial personal computer (23) compares the pressure drop of the measured special-shaped valve (100) with a preset low-pressure drop set value, when the pressure drop of the measured special-shaped valve (100) is smaller than the preset low-pressure drop set value, the valve strength of the measured special-shaped valve (100) is qualified, otherwise, the measured special-shaped valve (100) is unqualified, the industrial personal computer (23) sends a valve strength unqualified instruction to the microcontroller (89), and the microcontroller (89) controls the alarm (88) to alarm;
step 404, when the valve strength pressure test set value of any special-shaped valve (100) to be tested is greater than 40MPa, performing a high-pressure valve strength pressure test on the special-shaped valve (100), and performing a high-pressure valve strength pressure test method on the special-shaped valve (100) to be tested as follows:
step 4041, a microcontroller (89) controls the isolation assembly to be electrified, a first high-pressure regulating instruction is sent to the microcontroller (89) through the industrial personal computer (23), the microcontroller (89) controls the proportional pressure regulating valve (37) and the return pressure regulating valve (40) to regulate the driving air pressure, then the microcontroller (89) controls the first electromagnetic valve (39) and the second electromagnetic valve (50) to be electrified in a reciprocating mode, driving air is provided for the first air pump (51) through the air supply assembly, the first air pump (51) is started, and the measured special-shaped valve (100) is filled with water rapidly;
Step 4042, a second high-pressure regulating instruction is sent to a microcontroller (89) through the industrial personal computer (23), the microcontroller (89) controls the first electromagnetic valve (39) and the second electromagnetic valve (50) to be powered off, the first pneumatic pump (51) stops working, the microcontroller (89) controls the proportional pressure regulating valve (37) and the return pressure regulating valve (40) to regulate the driving air pressure, then the microcontroller (89) controls the third electromagnetic valve (38) and the fourth electromagnetic valve (53) to be powered on in a reciprocating mode, and the air supply assembly supplies driving air for the second pneumatic pump (52) to enable the second pneumatic pump (52) to be started;
step 4043, a third high-pressure regulating instruction is sent to the microcontroller (89) through the industrial personal computer (23), and the microcontroller (89) regulates the driving air pressure to rise through the proportional pressure regulating valve (37) and the return pressure regulating valve (40) so that the pressure at the outlet end of the high-pressure branch water supply pipe is equal to a preset high-pressure valve strength pressure test set value;
step 4044, a high-pressure maintaining instruction is sent to a microcontroller (89) through an industrial personal computer (23), the microcontroller (89) controls the high-pressure branch pressure maintaining assembly to act, the high-pressure branch water supply pipe is in a pressure maintaining state, when the high-pressure maintaining time preset by a timer (26) is reached, a high-pressure relief instruction is sent to the microcontroller (89) through the industrial personal computer (23), the microcontroller (89) controls the high-pressure branch pressure maintaining assembly to act, and water of a measured special valve (100) is relieved and enters a water supply tank (45), so that pressure relief of the high-pressure branch water supply pipe is completed;
Step 4045, in the process that the high-pressure branch water supply pipe is in pressure maintaining, a second water pressure detection unit (74) detects the pressure of the outlet end of the high-pressure branch water supply pipe in real time, the detected pressure of the outlet end of the high-pressure branch water supply pipe is sent to a microcontroller (89), the microcontroller (89) refers to the pressure of the outlet end of the high-pressure branch water supply pipe as a high-pressure valve strength pressure test value and sends the high-pressure valve strength pressure test value to an industrial personal computer (23), the industrial personal computer (23) invokes a curve drawing module to draw a curve of the high-pressure valve strength pressure test value changing along with the high-pressure maintaining time, and the industrial personal computer (23) obtains a pressure drop of the tested special valve (100) according to the high-pressure valve strength pressure test value change curve;
step 4046, the industrial personal computer (23) compares the pressure drop of the measured special-shaped valve (100) with a preset high-pressure drop set value, when the pressure drop of the measured special-shaped valve (100) is smaller than the preset high-pressure drop set value, the valve strength of the measured special-shaped valve (100) is qualified, the industrial personal computer (23) sends a valve strength qualification instruction to the microcontroller (89), and the microcontroller (89) controls the indicator lamp (25) to be on; otherwise, the tested special-shaped valve (100) is unqualified, the industrial personal computer (23) sends a valve strength unqualified instruction to the microcontroller (89), and the microcontroller (89) controls the alarm (88) to alarm;
Step 405, disassembling the liquid-passing quick connectors, and then sending a liquid-passing quick connector air supply stopping instruction to a microcontroller (89) through an industrial personal computer (23), wherein the microcontroller (89) controls a plurality of groups of liquid-passing quick connector electromagnetic valves to be powered off, and the air supply assembly stops supplying air for each group of liquid-passing quick connectors;
testing the valve sealing pressure:
step 501, connection of a ventilation quick connector and a valve of a measured abnormal shape, which is specifically as follows:
the method comprises the following steps that 5011, an air supply instruction of the air-vent quick connector is sent to a microcontroller (89) through an industrial personal computer (23), the microcontroller (89) controls a plurality of groups of electromagnetic valves of the air-vent quick connector to be electrified, and the air supply assembly supplies air for each group of air-vent quick connectors;
step 5012, connecting a plurality of groups of ventilation quick connectors with a plurality of tested special-shaped valves (100) respectively;
step 502, sending a sealing pressure regulating instruction to a microcontroller (89) through an industrial personal computer (23), wherein the microcontroller (89) controls the airtight filtering pressure regulator (103) to act until a sealing pressure value displayed by an airtight pressure gauge (101) connected with an outlet of the airtight filtering pressure regulator (103) meets a sealing pressure set value; in the process of the action of the airtight filtering pressure regulator (103), the first air pressure detection unit (102) detects the sealing pressure value of the outlet of the airtight filtering pressure regulator (103) in real time, and sends the detected sealing pressure value to the microcontroller (89), and the microcontroller (89) controls the main airtight digital display meter (111) to display the sealing pressure value in real time;
Step 503, a sealing test instruction is sent to a microcontroller (89) through an industrial personal computer (23), the microcontroller (89) controls a plurality of fifth electromagnetic valves (106) to be electrified, the plurality of tested special-shaped valves (100) are respectively inflated through the main air pipe and each branch air pipe until the sealing pressure test time preset by a timer (26) is reached, a plurality of second air pressure detection units (107) respectively detect the pressures of the outlet ends of the plurality of branch air pipes in real time, the pressures of the outlet ends of the plurality of branch air pipes are detected and sent to the microcontroller (89), and the microcontroller (89) respectively controls a plurality of branch airtight digital display tables (108) to display the pressures of the outlet ends of the plurality of branch air pipes in real time; wherein the valve (100) of the measured abnormal shape is in an open state;
step 504, the microcontroller (89) compares the received pressures of the outlet ends of the plurality of branch air pipes with preset sealing pressure set values respectively, and when the pressure of the outlet ends of the branch air pipes detected by the second air pressure detection unit (107) does not accord with the preset sealing pressure set values, step 505 is executed; otherwise, go to step 506;
step 505, when the pressure at the outlet end of the branch air pipe detected by the second air pressure detection unit (107) does not accord with a preset sealing pressure set value, the sealing performance of the detected special-shaped valve (100) is proved to be unqualified, the industrial personal computer (23) sends a sealing performance unqualified instruction to the microcontroller (89), and the microcontroller (89) controls the alarm (88) to alarm;
Step 506, when the pressure at the outlet end of the branch air pipe detected by the second air pressure detection unit (107) accords with a preset sealing pressure set value, the tightness of the detected special-shaped valve (100) is qualified, the industrial personal computer (23) sends a tightness qualification instruction to the microcontroller (89), and the microcontroller (89) controls the indicator lamp (25) to be on;
step 507, disassembling the ventilation quick connectors, and then sending a ventilation quick connector air supply stopping instruction to a microcontroller (89) through an industrial personal computer (23), wherein the microcontroller (89) controls a plurality of groups of ventilation quick connector electromagnetic valves to be powered off, and the air supply assembly stops supplying air to each group of ventilation quick connectors;
step six, disassembling and labeling the measured special-shaped valve: the method comprises the steps that a valve disassembly instruction is sent to a microcontroller (89) through an industrial personal computer (23), the microcontroller (89) controls a seventh electromagnetic valve (305) to be powered off, air is introduced into a rod cavity of a hydraulic cylinder (300), a piston rod (201) in the hydraulic cylinder (300) is contracted, an unlocking operation is carried out on a hydraulic lock (315), a tested special-shaped valve (100) on a hydraulic clamping mechanism is disassembled, meanwhile, the microcontroller (89) controls a sixth electromagnetic valve (205) to be powered off, air is introduced into a rodless cavity of a cylinder body (200) through a clamping main air supply pipe (209), the piston rod (201) in the cylinder body (200) is extended, and the tested special-shaped valve (100) on the pneumatic clamping mechanism is disassembled;
When the valve strength of the measured special-shaped valve (100) is qualified and the valve tightness of the measured special-shaped valve (100) is qualified, the industrial personal computer (23) sends a two-dimension code printing instruction to the microcontroller (89), the microcontroller (89) controls the two-dimension code printing module (24) to print the two-dimension code, and the two-dimension code is attached to the measured special-shaped valve (100) with qualified valve strength and tightness and put in storage.
6. The method according to claim 5, wherein: in step 4012, the method for connecting the plurality of groups of liquid-passing quick connectors with the plurality of measured special-shaped valves (100) is the same, wherein any group of liquid-passing quick connectors are connected with the measured special-shaped valves (100), and the process is as follows:
when the inlet and the outlet of the special-shaped valve (100) to be tested are one, the first liquid-passing quick connector (93) is connected with the inlet of the special-shaped valve (100) to be tested, and the second liquid-passing quick connector (94) is connected with the outlet of the special-shaped valve (100) to be tested;
when the number of inlets of the special-shaped valve (100) to be tested is one, the number of outlets of the special-shaped valve (100) to be tested is two, the first liquid-passing quick connector (93) is connected with the inlets of the special-shaped valve (100) to be tested, the second liquid-passing quick connector (94) is connected with one outlet of the special-shaped valve (100) to be tested, and the standby liquid-passing quick connector is connected with the other outlet of the special-shaped valve (100) to be tested;
When the number of inlets of the measured special-shaped valve (100) is two, the number of outlets of the measured special-shaped valve (100) is one, the first liquid-passing quick connector (93) is connected with one inlet of the measured special-shaped valve (100), the standby liquid-passing quick connector is connected with the other inlet of the measured special-shaped valve (100), and the second liquid-passing quick connector (94) is connected with the outlet of the measured special-shaped valve (100).
7. The method according to claim 5, wherein: in step 5012, the methods for connecting the plurality of groups of ventilation quick connectors with the plurality of measured special-shaped valves (100) are the same, wherein any group of ventilation quick connectors are connected with the measured special-shaped valves (100), and the process is as follows:
when the inlet and the outlet of the special-shaped valve (100) to be tested are one, the first ventilation quick connector (109) is connected with the inlet of the special-shaped valve (100) to be tested, and the second ventilation quick connector (110) is connected with the outlet of the special-shaped valve (100) to be tested;
when the number of inlets of the tested special-shaped valve (100) is one, the number of outlets of the tested special-shaped valve (100) is two, the first ventilation quick connector (109) is connected with the inlets of the tested special-shaped valve (100), the second ventilation quick connector (110) is connected with one outlet of the tested special-shaped valve (100), and the standby ventilation quick connector is connected with the other outlet of the tested special-shaped valve (100);
When the number of inlets of the measured special-shaped valve (100) is two, the number of outlets of the measured special-shaped valve (100) is one, the first ventilation quick connector (109) is connected with one inlet of the measured special-shaped valve (100), the standby ventilation quick connector is connected with the other inlet of the measured special-shaped valve (100), and the second ventilation quick connector (110) is connected with the outlet of the measured special-shaped valve (100).
8. The method according to claim 5, wherein: the value range of the sealing pressure set value is 0.5 MPa-0.8 MPa.
9. The method according to claim 5, wherein: before the microcontroller (89) controls the seventh electromagnetic valve (305) to be electrified, the hydraulic oil stop valve (307) is operated to be opened; when the tested special-shaped valve (100) in the step I and the step V is clamped, when the hydraulic ultra-safe hydraulic set value in the main oil supply pipe (303) is clamped, the hydraulic oil safety valve (309) is opened;
in the step I and the step V, the hydraulic pressure of the clamping main oil supply pipe (303) is detected in real time through a second clamping mechanical pressure gauge (310), so that the hydraulic pressure of the clamping main oil supply pipe (303) displayed by the second clamping mechanical pressure gauge (310) is the same as the hydraulic pressure in the clamping main oil supply pipe (303) displayed by a second clamping digital display gauge (311);
In the step C, the pressure in the clamping main air supply pipe (209) is detected in real time through the first clamping mechanical pressure gauge (210), so that the pressure in the clamping main air supply pipe (209) displayed by the first clamping mechanical pressure gauge (210) is the same as the hydraulic pressure of the pressure in the clamping main air supply pipe (209) displayed by the first clamping digital display gauge (211).
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