CN111257121A - Automatic test system for hydrostatic test - Google Patents
Automatic test system for hydrostatic test Download PDFInfo
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- CN111257121A CN111257121A CN202010088634.2A CN202010088634A CN111257121A CN 111257121 A CN111257121 A CN 111257121A CN 202010088634 A CN202010088634 A CN 202010088634A CN 111257121 A CN111257121 A CN 111257121A
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- 238000012360 testing method Methods 0.000 title claims abstract description 93
- 230000002706 hydrostatic effect Effects 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 17
- 238000002955 isolation Methods 0.000 claims description 38
- 239000007788 liquid Substances 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009781 safety test method Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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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
- G01N3/08—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
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- 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
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses an automatic testing system for a hydrostatic test, which belongs to the technical field of testing of hydraulic equipment and is characterized in that: the air source integrated control valve group is sequentially connected with an air pump, a first air source reversing valve group, a one-way valve, a container unloading valve, a high-pressure filter, a manual stop valve, a pressure sensor, an overflow valve, a pressure stabilizing tank, a high-pressure pump, a motor and a water tank through connecting pipelines, and the high-pressure pump is connected with a pressure maintaining flat valve group; the pressure relief device comprises a pressure relief flat valve group, a second air source reversing valve group, an electric throttle valve and a high-pressure sensor; the pressure maintaining flat valve group and the pressure relief flat valve group are connected in parallel; a high-pressure input interface, a high-pressure output interface, a pressure relief input port and a pressure relief output port are fixed on the frame, and the electric throttle valve and the high-pressure sensor are respectively connected with the pressure relief input port. The invention can test the pressure resistance of various pipelines, high-low pressure vessels and equipment, and has the characteristics of strong pollution resistance, high pressure maintaining precision, safe and reliable test and long service life.
Description
Technical Field
The invention relates to the technical field of testing of hydraulic equipment, in particular to an automatic testing system for a hydraulic test.
Background
In order to ensure the safe and reliable performance of hydraulic equipment, various pipelines, pressure containers, valve bodies and various connecting pieces need to be subjected to pressure resistance tests, and the pressure resistance tests can be used after the pressure resistance tests are qualified according to inspection standards. In the existing hydraulic equipment, in order to solve the high pressure problem of the hydraulic equipment, most of the hydraulic equipment is provided with a pressure maintaining valve and a pressure relief valve on corresponding pipelines, so that the effects of pressure maintaining and pressure relief are achieved.
For example, chinese patent publication No. CN 103603834a, published as 2014, 02, 26 discloses an automatic pressure maintaining device, which has an oil inlet, an oil outlet, a pressure maintaining oil port, and an oil return port, and includes an energy accumulator, a pressure maintaining check valve, a pressure reducing valve, a sequence valve, and a pressure maintaining control valve, wherein the sequence valve is disposed on an internal main oil passage, the pressure reducing valve is disposed in a pressure charging oil passage, the pressure maintaining check valve is disposed between the energy accumulator and the pressure reducing valve, and a reverse port is hydraulically connected to the energy accumulator; the set opening pressure of the sequence valve is greater than the set working pressure of the pressure reducing valve, and the pressure maintaining control valve is arranged on a connecting oil path between the energy accumulator and the oil return port, so that the sequence valve is controlled to be opened when the hydraulic value in the energy accumulator is greater than the pressure maintaining lower limit value, and the energy accumulator is controlled to return oil to the oil return port for pressure relief when the hydraulic value is greater than the pressure maintaining upper limit value.
For another example, chinese patent document CN 204261640U, published 2015, 04, and 15 discloses an intermittent ultrahigh-pressure relief valve, which includes: the valve body is internally provided with an axial channel with two through ends, and an ultrahigh pressure inlet and an oil return port which are communicated with the axial channel; the pressure relief valve core is of a cylindrical structure, the middle part of the pressure relief valve core is of a stepped shaft-shaped concave structure, the pressure relief valve core is positioned in the axial channel, sealing gaps are formed between two ends of the pressure relief valve core and the inner wall of the axial channel, the sealing gaps are combined with hydraulic oil to form liquid seal, and the pressure relief valve core axially moves in the axial channel to perform pressure maintaining or pressure relief speed adjustment; the driving device is connected with the pressure relief valve core and is used for accurately controlling the axial movement of the pressure relief valve core; and the sealing device is arranged on the driving device.
In the prior art represented by the patent documents, the pressure relief valve, the pressure retaining valve and the high-pressure needle valve have the problems of short service life and more impurities in a test medium in a test, and the valves have the defect of easy damage, so that the test failure can be caused and potential safety hazards can be caused to workers in the use process.
Disclosure of Invention
The invention provides an automatic testing system for the hydrostatic test, which can test the pressure resistance of various pipelines, high-pressure and low-pressure containers and equipment and has the characteristics of strong pollution resistance, high pressure maintaining precision, safe and reliable test and long service life.
The invention is realized by the following technical scheme:
the utility model provides a hydrostatic test automatic test system, includes the frame and rack-mounted pressurizer, pressure relief device and automatically controlled cabinet, its characterized in that: the pressure maintaining device comprises an air source integrated control valve group and a pressure maintaining flat valve group, wherein the air source integrated control valve group is sequentially connected with an air pump, a first air source reversing valve group, a one-way valve, a container unloading valve, a high-pressure filter, a manual stop valve, a pressure sensor, an overflow valve, a pressure stabilizing tank, a high-pressure pump, an electric motor and a water tank through a connecting pipeline, the electric motor is connected with the high-pressure pump through a transmission belt, and the high-pressure pump is connected with the pressure maintaining flat valve group; the pressure relief device comprises a pressure relief flat valve group, a second air source reversing valve group connected with the pressure relief flat valve group, an electric throttle valve and a high-pressure sensor; the pressure maintaining flat valve group and the pressure relief flat valve group are connected in parallel; the frame is fixed with high-pressure input interface, is used for connecting the high-pressure output interface of the measured piece and is used for connecting the pressure release input port and the pressure release delivery outlet in the safe discharge area, electronic choke valve and high-pressure sensor are connected with the pressure release input port respectively.
The first air source reversing valve group comprises a first air source reversing valve, a second air source reversing valve, a third air source reversing valve and a fourth air source reversing valve, and the second air source reversing valve group comprises a fifth air source reversing valve, a sixth air source reversing valve and a seventh air source reversing valve.
The pressure maintaining flat valve group comprises a pump end unloading flat valve, a forced stop valve, a front end low-pressure isolation valve and a front end medium-pressure isolation valve, the pump end unloading flat valve is connected with an air pump through a first air source reversing valve in a first air source reversing valve group, the forced stop valve is connected with the air pump through a second air source reversing valve in the first air source reversing valve group, the front end low-pressure isolation valve is connected with the air pump through a third air source reversing valve in the first air source reversing valve group, and the front end medium-pressure isolation valve is connected with the air pump through a fourth air source reversing valve in the first air source reversing valve group.
The pressure relief flat valve group comprises a rear-end low-pressure isolation valve, a rear-end medium-pressure isolation valve, a manual pressure relief valve and a pneumatic pressure relief valve, the rear-end low-pressure isolation valve is connected with an air pump through a fifth air source reversing valve in the second air source reversing valve group, the rear-end medium-pressure isolation valve is connected with the air pump through a sixth air source reversing valve in the second air source reversing valve group, the pneumatic pressure relief valve is connected with the air pump through a seventh air source reversing valve in the second air source reversing valve group, the rear-end low-pressure isolation valve, the rear-end medium-pressure isolation valve and the manual pressure relief valve are respectively connected with a pressure relief input port through pipelines, and the pneumatic pressure relief valve is.
One end of the pump end unloading flat valve is connected with the high-pressure pump, and the other end of the pump end unloading flat valve is connected with the water tank through a pipeline.
One end of the check valve is connected with the high-pressure pump, the other end of the check valve is connected with the forced stop valve through the overflow valve, the forced stop valve is connected with the front-end low-pressure isolation valve, the front-end medium-pressure isolation valve and the manual stop valve through the connecting pipeline of the pressure stabilizing tank, and the manual stop valve is connected to the high-pressure output interface.
And a high-pressure gauge for displaying the pressure of the pressure stabilizing tank is arranged on the connecting pipeline of the pressure stabilizing tank.
The water tank is provided with a water outlet, an observation hole and a cleaning hole, and the water tank is internally provided with a liquid level meter and an air filter.
And the electric control cabinet is provided with a pressure control button, an emergency switch, a power indicator, a motor operation indicator and a mode conversion switch which are electrically connected.
The working principle of the invention is as follows:
during testing, a tested part is connected to a high-pressure output interface, the high-pressure input interface is blocked, a pressure relief port is connected to a safe discharge area, a motor is started, the motor drives a high-pressure pump through a transmission belt, a forced stop valve is opened when a high-pressure pump pressure source is output, a pump end unloading flat valve and a manual stop valve are closed, and high-pressure water enters a pressure stabilizing tank through a one-way valve and then enters the tested part; and when the pressure reaches the test pressure, stopping the input of the high-pressure pump pressure source, and closing the forced stop valve. After the test is finished, the pneumatic pressure relief valve is opened, and the speed of unloading the pressure of the tested piece is adjusted through the electric throttle valve, so that the test operation is finished. In the testing process, if the pneumatic pressure release valve cannot complete automatic pressure release due to faults and power failure, the pressure is released through the manual pressure release valve.
The beneficial effects of the invention are mainly shown in the following aspects:
1. the pressure maintaining device comprises an air source integrated control valve group and a pressure maintaining flat valve group, wherein the air source integrated control valve group is sequentially connected with an air pump, a first air source reversing valve group, a one-way valve, a container unloading valve, a high-pressure filter, a manual stop valve, a pressure sensor, an overflow valve, a pressure stabilizing tank, a high-pressure pump, an electric motor and a water tank through a connecting pipeline, the electric motor is connected with the high-pressure pump through a transmission belt, and the high-pressure pump is connected with the pressure maintaining flat valve group; the pressure relief device comprises a pressure relief flat valve group, a second air source reversing valve group connected with the pressure relief flat valve group, an electric throttle valve and a high-pressure sensor; the pressure maintaining flat valve group and the pressure relief flat valve group are connected in parallel; the high-pressure input interface is fixed on the rack, the high-pressure output interface is used for connecting a tested piece, the pressure relief input port and the pressure relief output port are used for connecting a safe discharge area, the electric throttle valve and the high-pressure sensor are respectively connected with the pressure relief input port, when the pressure-relief safety testing device is used, the tested piece is connected into the high-pressure output interface, the high-pressure input interface is blocked, the pressure relief port is connected into the safe discharge area, the motor is started, the motor drives the high-pressure pump through a transmission belt, high-pressure water enters the pressure-stabilizing tank through the one-way valve and then enters the tested piece, the tested piece can be tested, and the pressure-resistant pressure testing device is used as a complete technical scheme.
2. According to the invention, when the pressure resistance of the pipeline, the high-low pressure container and the equipment is tested, the whole testing system can stably maintain pressure in the testing process through the organic matching of the pressure maintaining device and the pressure relief device, the pressure can be conveniently relieved after the test is finished, the testing operation is simple, the pressure measuring cost can be effectively reduced, and the pressure measuring efficiency is improved.
3. According to the invention, through arranging the air source integrated control valve group, the pressure maintaining plate valve group, the pressure relief plate valve group, the pressure stabilizing tank, the overflow valve and the high-pressure pump in the whole testing system, the pressure resistance test of various pipelines, high-low pressure vessels and equipment can be met, the tightness, the fatigue and the blasting performance can be tested, the testing universality is improved, and the detection efficiency and the detection quality are further improved.
4. According to the invention, in the whole testing system, the gas source integrated control valve group and the high-pressure gauge are arranged, so that the testing pressure can be controlled, various testing conditions can be simulated, and the testing quality can be improved.
5. The invention simplifies the steps and functional parts of the traditional pressure test, has high test efficiency and simple structure and effectively reduces the manufacturing cost.
6. According to the invention, the electric control cabinet is provided with the pressure control button, the emergency switch, the power indicator, the motor operation indicator and the mode conversion switch which are electrically connected, and the electric control cabinet can be used for performing starting, emergency stopping and stopping operations in a test process, so that the operation is convenient and simple.
Drawings
The invention will be further described in detail with reference to the drawings and the detailed description, in which:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a rear view of the present invention;
FIG. 4 is a schematic view of a pressure relief device according to the present invention;
FIG. 5 is a right side view of the pressure relief device of the present invention;
FIG. 6 is an enlarged view taken at A in FIG. 1;
the labels in the figure are: 1. the device comprises an electric control cabinet, 2, an air source integrated control valve group, 3, an air pump, 4, a first air source reversing valve group, 5, a one-way valve, 6, a container unloading valve, 7, a high-pressure filter, 8, a manual stop valve, 9, a pressure sensor, 10, an overflow valve, 11, a surge tank, 12, a high-pressure pump, 13, a motor, 14, a water tank, 15, a transmission belt, 17, a second air source reversing valve group, 18, an electric throttle valve, 19, a high-pressure sensor, 20, a high-pressure input interface, 21, a high-pressure output interface, 22, a pressure relief input port, 23, a pressure relief output port, 24, a first air source reversing valve, 25, a second air source reversing valve, 26, a third air source reversing valve, 27, a fourth air source reversing valve, 28, a fifth air source reversing valve, 29, a sixth air source reversing valve, 30, a seventh air source reversing valve, 31, a pump end unloading valve, 32, The device comprises a front end low-pressure isolating valve, 34, a front end medium-pressure isolating valve, 35, a rear end low-pressure isolating valve, 36, a rear end medium-pressure isolating valve, 37, a manual pressure relief valve, 38, a pneumatic pressure relief valve, 39, a high-pressure gauge, 40, a water discharge opening, 41, an observation hole, 42, a cleaning opening, 43, a liquid level meter, 44, an air filter, 45, a pressure control button, 46, an emergency switch, 47, a power indicator, 48, a motor operation indicator, 49 and a mode change-over switch.
Detailed Description
Example 1
Referring to fig. 1-6, an automatic testing system for a hydrostatic test comprises a frame, and a pressurizer, a pressure relief device and an electric control cabinet 1 which are mounted on the frame, wherein the pressurizer comprises an air source integrated control valve group 2 and a pressure maintaining flat valve group, the air source integrated control valve group 2 is sequentially connected with an air pump 3, a first air source reversing valve group 4, a one-way valve 5, a container unloading valve 6, a high-pressure filter 7, a manual stop valve 8, a pressure sensor 9, an overflow valve 10, a surge tank 11, a high-pressure pump 12, a motor 13 and a water tank 14 through connecting pipelines, the motor 13 is connected with the high-pressure pump 12 through a driving belt 15, and the high-pressure pump 12 is connected with the pressure maintaining; the pressure relief device comprises a pressure relief flat valve group, a second air source reversing valve group 17 connected with the pressure relief flat valve group, an electric throttle valve 18 and a high-pressure sensor 19; the pressure maintaining flat valve group and the pressure relief flat valve group are connected in parallel; the frame is fixed with a high-pressure input interface 20, a high-pressure output interface 21 for connecting a tested piece, a pressure relief input port 22 and a pressure relief output port 23 for connecting a safe discharge area, and the electric throttle valve 18 and the high-pressure sensor 19 are respectively connected with the pressure relief input port 22.
The embodiment is the most basic implementation mode, the pressure maintaining device comprises an air source integrated control valve group 2 and a pressure maintaining flat valve group, the air source integrated control valve group 2 is sequentially connected with an air pump 3, a first air source reversing valve group 4, a one-way valve 5, a container unloading valve 6, a high-pressure filter 7, a manual stop valve 8, a pressure sensor 9, an overflow valve 10, a pressure stabilizing tank 11, a high-pressure pump 12, a motor 13 and a water tank 14 through connecting pipelines, the motor 13 is connected with the high-pressure pump 12 through a transmission belt 15, and the high-pressure pump 12 is connected with the pressure maintaining flat valve group; the pressure relief device comprises a pressure relief flat valve group, a second air source reversing valve group 17 connected with the pressure relief flat valve group, an electric throttle valve 18 and a high-pressure sensor 19; the pressure maintaining flat valve group and the pressure relief flat valve group are connected in parallel; a high-pressure input interface 20, a high-pressure output interface 21 for connecting a tested piece, a pressure relief input port 22 and a pressure relief output port 23 for connecting a safe discharge area are fixed on the frame, the electric throttle valve 18 and the high-pressure sensor 19 are respectively connected with the pressure relief input port 22, when in use, the tested part is connected into a high-pressure output interface 21, the high-pressure input interface 20 is plugged, the pressure relief port is connected into a safe discharge area, a motor 13 is started, the motor 13 drives a high-pressure pump 12 through a driving belt 15, high-pressure water enters a pressure stabilizing tank 11 through a one-way valve 5 and then enters the tested part, the tested part can be tested, and compared with the prior art, the pressure-resistant testing device can test the pressure resistance of various pipelines, high-pressure and low-pressure containers and equipment, and has the characteristics of strong pollution resistance, high pressure maintaining precision, safety and reliability in testing and long service life.
Example 2
Referring to fig. 1-6, an automatic testing system for a hydrostatic test comprises a frame, and a pressurizer, a pressure relief device and an electric control cabinet 1 which are mounted on the frame, wherein the pressurizer comprises an air source integrated control valve group 2 and a pressure maintaining flat valve group, the air source integrated control valve group 2 is sequentially connected with an air pump 3, a first air source reversing valve group 4, a one-way valve 5, a container unloading valve 6, a high-pressure filter 7, a manual stop valve 8, a pressure sensor 9, an overflow valve 10, a surge tank 11, a high-pressure pump 12, a motor 13 and a water tank 14 through connecting pipelines, the motor 13 is connected with the high-pressure pump 12 through a driving belt 15, and the high-pressure pump 12 is connected with the pressure maintaining; the pressure relief device comprises a pressure relief flat valve group, a second air source reversing valve group 17 connected with the pressure relief flat valve group, an electric throttle valve 18 and a high-pressure sensor 19; the pressure maintaining flat valve group and the pressure relief flat valve group are connected in parallel; the frame is fixed with a high-pressure input interface 20, a high-pressure output interface 21 for connecting a tested piece, a pressure relief input port 22 and a pressure relief output port 23 for connecting a safe discharge area, and the electric throttle valve 18 and the high-pressure sensor 19 are respectively connected with the pressure relief input port 22.
The first air source reversing valve group 4 comprises a first air source reversing valve 24, a second air source reversing valve 25, a third air source reversing valve 26 and a fourth air source reversing valve 27, and the second air source reversing valve group 17 comprises a fifth air source reversing valve 28, a sixth air source reversing valve 29 and a seventh air source reversing valve 30.
This embodiment is a preferred embodiment, and whole test system is when testing the withstand voltage of pipeline, high-low pressure vessel and equipment, through pressurizer and pressure relief device's organic cooperation, pressurize that can be stable in the test procedure, after the test is accomplished, pressure release that can be convenient, test operation is simple, can effectively reduce the pressure measurement cost, improves pressure measurement efficiency.
Example 3
Referring to fig. 1-6, an automatic testing system for a hydrostatic test comprises a frame, and a pressurizer, a pressure relief device and an electric control cabinet 1 which are mounted on the frame, wherein the pressurizer comprises an air source integrated control valve group 2 and a pressure maintaining flat valve group, the air source integrated control valve group 2 is sequentially connected with an air pump 3, a first air source reversing valve group 4, a one-way valve 5, a container unloading valve 6, a high-pressure filter 7, a manual stop valve 8, a pressure sensor 9, an overflow valve 10, a surge tank 11, a high-pressure pump 12, a motor 13 and a water tank 14 through connecting pipelines, the motor 13 is connected with the high-pressure pump 12 through a driving belt 15, and the high-pressure pump 12 is connected with the pressure maintaining; the pressure relief device comprises a pressure relief flat valve group, a second air source reversing valve group 17 connected with the pressure relief flat valve group, an electric throttle valve 18 and a high-pressure sensor 19; the pressure maintaining flat valve group and the pressure relief flat valve group are connected in parallel; the frame is fixed with a high-pressure input interface 20, a high-pressure output interface 21 for connecting a tested piece, a pressure relief input port 22 and a pressure relief output port 23 for connecting a safe discharge area, and the electric throttle valve 18 and the high-pressure sensor 19 are respectively connected with the pressure relief input port 22.
The first air source reversing valve group 4 comprises a first air source reversing valve 24, a second air source reversing valve 25, a third air source reversing valve 26 and a fourth air source reversing valve 27, and the second air source reversing valve group 17 comprises a fifth air source reversing valve 28, a sixth air source reversing valve 29 and a seventh air source reversing valve 30.
The pressure maintaining flat valve group comprises a pump end unloading flat valve 31, a forced stop valve 32, a front end low-pressure isolation valve 33 and a front end medium-pressure isolation valve 34, wherein the pump end unloading flat valve 31 is connected with the air pump 3 through a first air source reversing valve 24 in a first air source reversing valve group 4, the forced stop valve 32 is connected with the air pump 3 through a second air source reversing valve 25 in the first air source reversing valve group 4, the front end low-pressure isolation valve 33 is connected with the air pump 3 through a third air source reversing valve 26 in the first air source reversing valve group 4, and the front end medium-pressure isolation valve 34 is connected with the air pump 3 through a fourth air source reversing valve 27 in the first air source reversing valve group 4.
The pressure relief flat valve group comprises a rear-end low-pressure isolating valve 35, a rear-end medium-pressure isolating valve 36, a manual pressure relief valve 37 and a pneumatic pressure relief valve 38, wherein the rear-end low-pressure isolating valve 35 is connected with the air pump 3 through a fifth air source reversing valve 28 in the second air source reversing valve group 17, the rear-end medium-pressure isolating valve 36 is connected with the air pump 3 through a sixth air source reversing valve 29 in the second air source reversing valve group 17, the pneumatic pressure relief valve 38 is connected with the air pump 3 through a seventh air source reversing valve 30 in the second air source reversing valve group 17, the rear-end low-pressure isolating valve 35, the rear-end medium-pressure isolating valve 36 and the manual pressure relief valve 37 are respectively connected with a pressure relief input port 22 through pipelines, and the pneumatic pressure relief valve 38 is.
In the whole testing system, by arranging the air source integrated control valve group 2, the pressure maintaining plate valve group, the pressure relief plate valve group, the pressure stabilizing tank 11, the overflow valve 10 and the high-pressure pump 12, the pressure resistance test of various pipelines, high-low pressure vessels and equipment can be met, the tightness, fatigue and explosion performance can be tested, the test universality is improved, and the detection efficiency and the detection quality are further improved.
Example 4
Referring to fig. 1-6, an automatic testing system for a hydrostatic test comprises a frame, and a pressurizer, a pressure relief device and an electric control cabinet 1 which are mounted on the frame, wherein the pressurizer comprises an air source integrated control valve group 2 and a pressure maintaining flat valve group, the air source integrated control valve group 2 is sequentially connected with an air pump 3, a first air source reversing valve group 4, a one-way valve 5, a container unloading valve 6, a high-pressure filter 7, a manual stop valve 8, a pressure sensor 9, an overflow valve 10, a surge tank 11, a high-pressure pump 12, a motor 13 and a water tank 14 through connecting pipelines, the motor 13 is connected with the high-pressure pump 12 through a driving belt 15, and the high-pressure pump 12 is connected with the pressure maintaining; the pressure relief device comprises a pressure relief flat valve group, a second air source reversing valve group 17 connected with the pressure relief flat valve group, an electric throttle valve 18 and a high-pressure sensor 19; the pressure maintaining flat valve group and the pressure relief flat valve group are connected in parallel; the frame is fixed with a high-pressure input interface 20, a high-pressure output interface 21 for connecting a tested piece, a pressure relief input port 22 and a pressure relief output port 23 for connecting a safe discharge area, and the electric throttle valve 18 and the high-pressure sensor 19 are respectively connected with the pressure relief input port 22.
The first air source reversing valve group 4 comprises a first air source reversing valve 24, a second air source reversing valve 25, a third air source reversing valve 26 and a fourth air source reversing valve 27, and the second air source reversing valve group 17 comprises a fifth air source reversing valve 28, a sixth air source reversing valve 29 and a seventh air source reversing valve 30.
The pressure maintaining flat valve group comprises a pump end unloading flat valve 31, a forced stop valve 32, a front end low-pressure isolation valve 33 and a front end medium-pressure isolation valve 34, wherein the pump end unloading flat valve 31 is connected with the air pump 3 through a first air source reversing valve 24 in a first air source reversing valve group 4, the forced stop valve 32 is connected with the air pump 3 through a second air source reversing valve 25 in the first air source reversing valve group 4, the front end low-pressure isolation valve 33 is connected with the air pump 3 through a third air source reversing valve 26 in the first air source reversing valve group 4, and the front end medium-pressure isolation valve 34 is connected with the air pump 3 through a fourth air source reversing valve 27 in the first air source reversing valve group 4.
The pressure relief flat valve group comprises a rear-end low-pressure isolating valve 35, a rear-end medium-pressure isolating valve 36, a manual pressure relief valve 37 and a pneumatic pressure relief valve 38, wherein the rear-end low-pressure isolating valve 35 is connected with the air pump 3 through a fifth air source reversing valve 28 in the second air source reversing valve group 17, the rear-end medium-pressure isolating valve 36 is connected with the air pump 3 through a sixth air source reversing valve 29 in the second air source reversing valve group 17, the pneumatic pressure relief valve 38 is connected with the air pump 3 through a seventh air source reversing valve 30 in the second air source reversing valve group 17, the rear-end low-pressure isolating valve 35, the rear-end medium-pressure isolating valve 36 and the manual pressure relief valve 37 are respectively connected with a pressure relief input port 22 through pipelines, and the pneumatic pressure relief valve 38 is.
One end of the pump end unloading flat valve 31 is connected with the high-pressure pump 12, and the other end of the pump end unloading flat valve 31 is connected with the water tank 14 through a pipeline.
One end of the check valve 5 is connected with the high-pressure pump 12, the other end of the check valve 5 is connected with the forced stop valve 32 through the overflow valve 10, the forced stop valve 32 is connected with the front-end low-pressure isolation valve 33, the front-end medium-pressure isolation valve 34 and the manual stop valve 8 through the connecting pipeline of the pressure stabilizing tank 11, and the manual stop valve 8 is connected on the high-pressure output interface 21.
In this embodiment, as another preferred embodiment, in the whole testing system, the air source integrated control valve set 2 and the high pressure gauge 39 are arranged, so that the testing pressure can be controlled, various testing conditions can be simulated, and the testing quality can be improved.
Example 5
Referring to fig. 1-6, an automatic testing system for a hydrostatic test comprises a frame, and a pressurizer, a pressure relief device and an electric control cabinet 1 which are mounted on the frame, wherein the pressurizer comprises an air source integrated control valve group 2 and a pressure maintaining flat valve group, the air source integrated control valve group 2 is sequentially connected with an air pump 3, a first air source reversing valve group 4, a one-way valve 5, a container unloading valve 6, a high-pressure filter 7, a manual stop valve 8, a pressure sensor 9, an overflow valve 10, a surge tank 11, a high-pressure pump 12, a motor 13 and a water tank 14 through connecting pipelines, the motor 13 is connected with the high-pressure pump 12 through a driving belt 15, and the high-pressure pump 12 is connected with the pressure maintaining; the pressure relief device comprises a pressure relief flat valve group, a second air source reversing valve group 17 connected with the pressure relief flat valve group, an electric throttle valve 18 and a high-pressure sensor 19; the pressure maintaining flat valve group and the pressure relief flat valve group are connected in parallel; the frame is fixed with a high-pressure input interface 20, a high-pressure output interface 21 for connecting a tested piece, a pressure relief input port 22 and a pressure relief output port 23 for connecting a safe discharge area, and the electric throttle valve 18 and the high-pressure sensor 19 are respectively connected with the pressure relief input port 22.
The first air source reversing valve group 4 comprises a first air source reversing valve 24, a second air source reversing valve 25, a third air source reversing valve 26 and a fourth air source reversing valve 27, and the second air source reversing valve group 17 comprises a fifth air source reversing valve 28, a sixth air source reversing valve 29 and a seventh air source reversing valve 30.
The pressure maintaining flat valve group comprises a pump end unloading flat valve 31, a forced stop valve 32, a front end low-pressure isolation valve 33 and a front end medium-pressure isolation valve 34, wherein the pump end unloading flat valve 31 is connected with the air pump 3 through a first air source reversing valve 24 in a first air source reversing valve group 4, the forced stop valve 32 is connected with the air pump 3 through a second air source reversing valve 25 in the first air source reversing valve group 4, the front end low-pressure isolation valve 33 is connected with the air pump 3 through a third air source reversing valve 26 in the first air source reversing valve group 4, and the front end medium-pressure isolation valve 34 is connected with the air pump 3 through a fourth air source reversing valve 27 in the first air source reversing valve group 4.
The pressure relief flat valve group comprises a rear-end low-pressure isolating valve 35, a rear-end medium-pressure isolating valve 36, a manual pressure relief valve 37 and a pneumatic pressure relief valve 38, wherein the rear-end low-pressure isolating valve 35 is connected with the air pump 3 through a fifth air source reversing valve 28 in the second air source reversing valve group 17, the rear-end medium-pressure isolating valve 36 is connected with the air pump 3 through a sixth air source reversing valve 29 in the second air source reversing valve group 17, the pneumatic pressure relief valve 38 is connected with the air pump 3 through a seventh air source reversing valve 30 in the second air source reversing valve group 17, the rear-end low-pressure isolating valve 35, the rear-end medium-pressure isolating valve 36 and the manual pressure relief valve 37 are respectively connected with a pressure relief input port 22 through pipelines, and the pneumatic pressure relief valve 38 is.
One end of the pump end unloading flat valve 31 is connected with the high-pressure pump 12, and the other end of the pump end unloading flat valve 31 is connected with the water tank 14 through a pipeline.
One end of the check valve 5 is connected with the high-pressure pump 12, the other end of the check valve 5 is connected with the forced stop valve 32 through the overflow valve 10, the forced stop valve 32 is connected with the front-end low-pressure isolation valve 33, the front-end medium-pressure isolation valve 34 and the manual stop valve 8 through the connecting pipeline of the pressure stabilizing tank 11, and the manual stop valve 8 is connected on the high-pressure output interface 21.
And a high-pressure gauge 39 for displaying the pressure of the surge tank 11 is arranged on the connecting pipeline of the surge tank 11.
The water tank 14 is provided with a water outlet 40, an observation hole 41 and a cleaning hole 42, and the water tank 14 is internally provided with a liquid level meter 43 and an air filter 44.
The electric control cabinet 1 is provided with a pressure control button 45, an emergency switch 46, a power indicator 47, a motor running indicator 48 and a mode conversion switch 49 which are electrically connected.
The embodiment is the best implementation mode, the pressure maintaining device comprises an air source integrated control valve group 2 and a pressure maintaining flat valve group, the air source integrated control valve group 2 is sequentially connected with an air pump 3, a first air source reversing valve group 4, a one-way valve 5, a container unloading valve 6, a high-pressure filter 7, a manual stop valve 8, a pressure sensor 9, an overflow valve 10, a pressure stabilizing tank 11, a high-pressure pump 12, a motor 13 and a water tank 14 through connecting pipelines, the motor 13 is connected with the high-pressure pump 12 through a transmission belt 15, and the high-pressure pump 12 is connected with the pressure maintaining flat valve group; the pressure relief device comprises a pressure relief flat valve group, a second air source reversing valve group 17 connected with the pressure relief flat valve group, an electric throttle valve 18 and a high-pressure sensor 19; the pressure maintaining flat valve group and the pressure relief flat valve group are connected in parallel; a high-pressure input interface 20, a high-pressure output interface 21 for connecting a tested piece, a pressure relief input port 22 and a pressure relief output port 23 for connecting a safe discharge area are fixed on the frame, the electric throttle valve 18 and the high-pressure sensor 19 are respectively connected with the pressure relief input port 22, when in use, the tested part is connected into a high-pressure output interface 21, the high-pressure input interface 20 is plugged, the pressure relief port is connected into a safe discharge area, a motor 13 is started, the motor 13 drives a high-pressure pump 12 through a driving belt 15, high-pressure water enters a pressure stabilizing tank 11 through a one-way valve 5 and then enters the tested part, the tested part can be tested, and compared with the prior art, the pressure-resistant testing device can test the pressure resistance of various pipelines, high-pressure and low-pressure containers and equipment, and has the characteristics of strong pollution resistance, high pressure maintaining precision, safety and reliability in testing and long service life.
The pressure testing device simplifies the steps and functional parts of the traditional pressure testing, has high testing efficiency and simple structure, and effectively reduces the manufacturing cost.
Be provided with the pressure control button 45, emergency switch 46, power indicator 47, motor operation pilot lamp 48 and the mode transfer switch 49 of electricity connection on the automatically controlled cabinet 1, through automatically controlled cabinet 1, in the testing process, can start, scram, the operation that stops, simple operation.
Claims (9)
1. The utility model provides a hydrostatic test automatic test system, includes the frame and rack-mounted pressurizer, pressure relief device and automatically controlled cabinet (1), its characterized in that: the pressure maintaining device comprises an air source integrated control valve group (2) and a pressure maintaining flat valve group, wherein the air source integrated control valve group (2) is sequentially connected with an air pump (3), a first air source reversing valve group (4), a one-way valve (5), a container unloading valve (6), a high-pressure filter (7), a manual stop valve (8), a pressure sensor (9), an overflow valve (10), a pressure stabilizing tank (11), a high-pressure pump (12), a motor (13) and a water tank (14) through connecting pipelines, the motor (13) is connected with the high-pressure pump (12) through a driving belt (15), and the high-pressure pump (12) is connected with the pressure maintaining flat valve group; the pressure relief device comprises a pressure relief flat valve group, a second air source reversing valve group (17) connected with the pressure relief flat valve group, an electric throttle valve (18) and a high-pressure sensor (19); the pressure maintaining flat valve group and the pressure relief flat valve group are connected in parallel; the high-pressure automatic pressure-relief device is characterized in that a high-pressure input interface (20), a high-pressure output interface (21) used for connecting a tested piece, a pressure-relief input port (22) used for connecting a safe discharge area and a pressure-relief output port (23) are fixed on the rack, and the electric throttle valve (18) and the high-pressure sensor (19) are respectively connected with the pressure-relief input port (22).
2. The hydrostatic test automatic test system of claim 1, characterized in that: the first air source reversing valve group (4) comprises a first air source reversing valve (24), a second air source reversing valve (25), a third air source reversing valve (26) and a fourth air source reversing valve (27), and the second air source reversing valve group (17) comprises a fifth air source reversing valve (28), a sixth air source reversing valve (29) and a seventh air source reversing valve (30).
3. The hydrostatic test automatic test system of claim 2, characterized in that: the pressure-maintaining flat valve bank comprises a pump end unloading flat valve (31), a forced stop valve (32), a front end low-pressure isolation valve (33) and a front end medium-pressure isolation valve (34), wherein the pump end unloading flat valve (31) is connected with an air pump (3) through a first air source reversing valve (24) in a first air source reversing valve bank (4), the forced stop valve (32) is connected with the air pump (3) through a second air source reversing valve (25) in the first air source reversing valve bank (4), the front end low-pressure isolation valve (33) is connected with the air pump (3) through a third air source reversing valve (26) in the first air source reversing valve bank (4), and the front end medium-pressure isolation valve (34) is connected with the air pump (3) through a fourth air source reversing valve (27) in the first air source reversing valve bank (4).
4. The hydrostatic test automatic test system of claim 2, characterized in that: the pressure relief flat valve group comprises a rear-end low-pressure isolation valve (35), a rear-end medium-pressure isolation valve (36), a manual pressure relief valve (37) and a pneumatic pressure relief valve (38), the rear-end low-pressure isolation valve (35) is connected with an air pump (3) through a fifth air source reversing valve (28) in a second air source reversing valve group (17), the rear-end medium-pressure isolation valve (36) is connected with the air pump (3) through a sixth air source reversing valve (29) in the second air source reversing valve group (17), the pneumatic pressure relief valve (38) is connected with the air pump (3) through a seventh air source reversing valve (30) in the second air source reversing valve group (17), the rear-end low-pressure isolation valve (35), the rear-end medium-pressure isolation valve (36) and the manual pressure relief valve (37) are respectively connected with a pressure relief input port (22) through pipelines, and the pneumatic pressure relief valve (38).
5. The hydrostatic test automatic test system of claim 3, characterized in that: one end of the pump end unloading flat valve (31) is connected with the high-pressure pump (12), and the other end of the pump end unloading flat valve (31) is connected with the water tank (14) through a pipeline.
6. The hydrostatic test automatic test system of claim 3, characterized in that: one end of the check valve (5) is connected with the high-pressure pump (12), the other end of the check valve (5) is connected with the forced stop valve (32) through the overflow valve (10), the forced stop valve (32) is connected with the front-end low-pressure isolating valve (33), the front-end medium-pressure isolating valve (34) and the manual stop valve (8) through the connecting pipeline of the pressure stabilizing tank (11), and the manual stop valve (8) is connected on the high-pressure output interface (21).
7. The hydrostatic test automatic test system of claim 1, characterized in that: and a high-pressure gauge (39) for displaying the pressure of the surge tank (11) is arranged on a connecting pipeline of the surge tank (11).
8. The hydrostatic test automatic test system of claim 1, characterized in that: the water tank (14) is provided with a water discharge opening (40), an observation hole (41) and a cleaning opening (42), and the water tank (14) is internally provided with a liquid level meter (43) and an air filter (44).
9. The hydrostatic test automatic test system of claim 1, characterized in that: the electric control cabinet (1) is provided with a pressure control button (45), an emergency switch (46), a power indicator (47), a motor operation indicator (48) and a mode conversion switch (49) which are electrically connected.
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