CN222837813U - Valve detection device - Google Patents

Abstract

The utility model provides a valve detection device which comprises a portal frame, a compression assembly, a valve port control assembly, a control pipeline, a water pump device and a servo pressurizing device, wherein the compression assembly is arranged on a lower cross beam of the portal frame and used for clamping and fixing a valve to be detected, the valve port control assembly is arranged on an upper cross beam of the portal frame and used for closing or opening an outlet of the valve to be detected and discharging gas in a valve cavity of the valve to be detected when the outlet of the valve to be detected is closed, a water outlet end of the water pump device is communicated with an inlet of the valve to be detected through the control pipeline, a pressurizing port of the servo pressurizing device is communicated with the inlet of the valve to be detected through the control pipeline, and the control pipeline is used for controlling the communication or disconnection between the water outlet end of the water pump device and the inlet of the valve to be detected and controlling the pressurizing port of the servo pressurizing device to be communicated with or disconnected from the inlet of the valve to be detected. The utility model can realize high-efficiency detection of the valve to be detected.

Description

Valve detection device

Technical Field

The embodiment of the utility model relates to the technical field of valve detection, in particular to a valve detection device.

Background

Steam trap and shut-off valve are key devices in steam systems. The steam trap is a key device for connecting the two systems of steam and condensed water, and can automatically discharge condensed water and non-condensable gas and prevent steam leakage. It is not only the dividing point of steam and water in the system, but also the dividing point of pressure in the system. The stop valve is a pipeline accessory for opening and closing a pipeline and adjusting and controlling parameters of a conveying medium, is a control component in a fluid conveying system and has the functions of stopping, adjusting, guiding, diverting or overflow pressure relief and the like.

When the steam drain valve and the stop valve work, the steam drain valve and the stop valve bear the high temperature and high pressure of a steam system, and the steam drain valve and the stop valve have good sealing performance and pressure resistance to meet the working requirements. Thus, detection of steam traps and shut-off valves is particularly important.

At present, the valve is detected by adopting a manual clamping and detecting mode, equipment disassembly and assembly are required to be carried out in the process, the operation is complex, and the detection efficiency is low.

Disclosure of utility model

The embodiment of the utility model provides a valve detection device, which aims to solve the problems that equipment is required to be disassembled and assembled in a complicated way, the operation is complicated and the detection efficiency is low in the conventional valve detection by adopting a manual clamping and detection mode.

In order to solve the technical problems, the utility model is realized as follows:

In a first aspect, the utility model provides a valve detection device, comprising a portal frame, a compression assembly, a valve port control assembly, a control pipeline, a water pump device and a servo pressurizing device;

The compression assembly is arranged on the lower cross beam of the portal frame and used for clamping and fixing the valve to be tested;

The valve port control assembly is arranged on the upper cross beam of the portal frame and is used for closing or opening the outlet of the tested valve and discharging gas in the valve cavity of the tested valve when the outlet of the tested valve is closed;

the water outlet end of the water pump device is communicated with the inlet of the valve to be tested through the control pipeline, and the pressurizing port of the servo pressurizing device is communicated with the inlet of the valve to be tested through the control pipeline;

The control pipeline is used for controlling the communication or disconnection between the water outlet end of the water pump device and the inlet of the tested valve, and is also used for controlling the communication or disconnection between the pressurizing port of the servo pressurizing device and the inlet of the tested valve.

Optionally, the compaction assembly comprises a sliding rail, a sliding table and a clamping piece;

the sliding rail is fixedly arranged on the lower cross beam, and the length direction of the sliding rail is perpendicular to the length direction of the lower cross beam;

the sliding table is arranged on the sliding rail and can slide along the length direction of the sliding rail;

The clamping piece is arranged on the sliding table and used for clamping and fixing the tested valve on the sliding table.

Optionally, the valve port control assembly comprises a hydraulic cylinder and an exhaust assembly;

the cylinder body of the hydraulic cylinder is arranged on the upper cross beam, and the telescopic arm of the hydraulic cylinder is arranged in the cylinder body in a sliding telescopic manner along the length direction of the cylinder body, wherein the first end part of the telescopic arm can extend out of the cylinder body to the lower part of the upper cross beam;

The first end part is provided with a connecting disc used for being connected with the outlet of the tested valve in a sealing way, the connecting disc is connected with the outlet of the tested valve, the outlet of the tested valve is closed, the connecting disc is separated from the outlet of the tested valve, and the outlet of the tested valve is opened;

The exhaust assembly is arranged on the connecting disc and can be communicated with an opening of the valve to be tested through the connecting disc.

Optionally, the exhaust assembly comprises an air pipe, an exhaust tank, a pneumatic valve, a pressure sensor and an exhaust valve;

the inlet end of the air pipe is communicated with the bottom outlet of the exhaust tank, and the pneumatic valve is arranged on the air pipe and is used for controlling the communication or disconnection between the inlet end of the air pipe and the outlet end of the air pipe;

The bottom inlet of the exhaust tank is communicated with the connecting disc through a pipeline and is communicated with the outlet of the valve to be tested through the connecting disc;

The pressure sensor is arranged at the top of the exhaust tank and is used for acquiring a pressure signal in the exhaust tank and sending the pressure signal to an interaction end associated with a user, and the exhaust valve is arranged at the top outlet of the exhaust tank.

Optionally, the clamping member has at least two groups arranged at intervals.

Optionally, the compaction assembly further comprises a rodless cylinder for driving the sliding table to slide along the length direction of the sliding rail.

Optionally, the control pipeline comprises a water inlet pipe section, a water injection pipe section, a pressurizing pipe section and a water discharge pipe section;

The water inlet pipe section is communicated with the water outlet end of the water pump device, and a first valve is arranged between the water inlet pipe section and the water outlet end of the water pump device and is used for controlling the communication or the disconnection between the water inlet pipe section and the water outlet end of the water pump device;

one end of the water injection pipe section is communicated with an inlet of the valve to be tested, and the other end of the water injection pipe section is communicated with the water inlet pipe section;

One end of the pressurizing pipe section is communicated with the pressurizing port, the other end of the pressurizing pipe section is communicated with the water injection pipe section, a third valve is arranged on the pressurizing pipe section, and the third valve is used for controlling the communication or disconnection between the pressurizing port and the water injection pipe section;

One end of the water draining pipe section is communicated with the water filling pipe section, the other end of the water draining pipe section is communicated with the water return end of the water pump device, a fourth valve is arranged on the water draining pipe section and used for controlling the communication or disconnection between the water filling pipe section and the water return end of the water pump device.

Optionally, the control pipeline further comprises a pressure transmitter and a controller;

The pressure transmitter is arranged on the water injection pipe section and is used for detecting the pressure in the valve cavity of the valve to be detected and transmitting a pressure signal to the controller;

The controller includes:

and the first control interface is used for receiving the pressure signal and forwarding the pressure signal to an interaction end associated with a user.

Optionally, the controller further comprises:

the second control interface is used for receiving a first valve opening signal or a first valve closing signal sent by the interaction end and forwarding the first valve opening signal or the first valve closing signal to the first valve;

The third control interface is used for receiving a third valve opening signal or a third valve closing signal sent by the interaction end and forwarding the third valve opening signal or the third valve closing signal to the third valve;

And the fourth control interface is used for receiving a fourth valve opening signal or a fourth valve closing signal sent by the interaction end and forwarding the fourth valve opening signal or the fourth valve closing signal to the fourth valve.

Optionally, the water inlet pipe section comprises a first water inlet branch pipe section and a second water inlet branch pipe section, and the control pipeline further comprises a differential pressure transmitter and a second valve;

The water injection pipe section is communicated with the first water inlet branch pipe section;

One end part of the first water inlet branch pipe section is communicated with the water outlet end of the water pump device and provided with the first valve, one end part of the second water inlet branch pipe section is communicated with the first water inlet branch pipe section, the other end part of the second water inlet branch pipe section is communicated with the other end part of the first water inlet branch pipe section through the differential pressure transmitter, and the second valve is arranged on the second water inlet branch pipe section;

The pressure difference transmitter is used for detecting the pressure difference between the first water inlet branch pipe section and the second water inlet branch pipe section and sending pressure difference data to an interaction end associated with a user.

Optionally, the method further comprises:

The gantry, the compression assembly, the valve port control assembly, the control pipeline, the water pump device and the servo pressurizing device are all arranged on the gantry;

The universal wheel assemblies are provided with a plurality of groups, and the plurality of groups of the universal wheel assemblies are arranged at the bottom of the frame at intervals.

The valve detection device comprises a portal frame, a compression assembly, a valve port control assembly, a control pipeline, a water pump device and a servo pressurizing device, wherein the compression assembly is arranged on a lower cross beam of the portal frame and used for clamping and fixing a detected valve, the valve port control assembly is arranged on an upper cross beam of the portal frame and used for closing or opening an outlet of the detected valve and discharging gas in a valve cavity of the detected valve when the outlet of the detected valve is closed, a water outlet end of the water pump device is communicated with an inlet of the detected valve through the control pipeline, a pressurizing port of the servo pressurizing device is communicated with the inlet of the detected valve through the control pipeline, the control pipeline is used for controlling communication or disconnection between a water outlet end of the water pump device and the inlet of the detected valve, and is also used for controlling communication or disconnection between a pressurizing port of the servo pressurizing device and the inlet of the detected valve.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

FIG. 1 is a schematic diagram of a valve detection device according to an embodiment of the present utility model;

FIG. 2a is a schematic diagram of a gantry, valve port control assembly, and compression assembly in accordance with an embodiment of the present utility model;

FIG. 2b is a schematic diagram of a valve port control assembly according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of an exhaust assembly according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a frame according to an embodiment of the present utility model;

FIG. 5a is a schematic diagram of a control pipeline according to an embodiment of the present utility model;

FIG. 5b is a second schematic diagram of a control pipeline according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a water pump apparatus according to an embodiment of the present utility model;

FIG. 7 is a schematic diagram of a servo supercharging device according to an embodiment of the present utility model;

Wherein:

100. a valve to be tested; 200 parts of a frame, 300 parts of a universal wheel assembly, 400 parts of a control console;

1. A portal frame; 11, a lower beam, 12, an upper beam, 13, a position sensor;

2. A compression assembly; 21, a slide rail, 22, a slide table, 23, a clamping piece, 24 and a rodless cylinder;

3. Valve port control assembly, 31, hydraulic cylinder, 32, exhaust assembly, 321, air pipe, 322, exhaust tank, 322a, bottom inlet, 323, pneumatic valve, 324, pressure sensor, 325, exhaust valve, 326, inflation pipeline, 33, connecting disc, 34, linear sensor, 35, guide rod;

4. Control pipeline, 41, water inlet pipe section, 41a, first water inlet branch pipe section, 41b, second water inlet branch pipe section, 42, water injection pipe section, 43, pressurizing pipe section, 44, water draining pipe section, 45, pressure transmitter, 46, pressure difference transmitter;

5. The water pump device comprises a water pump device, a 51, an oil suction filter, a 52, an oil return filter, a 54, a liquid level meter, a 55, a water tank, a 56, a water pump, a 58, a water inlet tee joint, a 59, a water outlet tee joint, a 510, a one-way valve, a 511 and a drain outlet;

6. A servo supercharging device; 61, a speed reducer, 62, a servo motor, 63, a reciprocating mechanism, 65, a pressurizing plunger, 66, a pressurizing cylinder barrel, 67 and a pressurizing port;

71. First valve, 72, second valve, 73, third valve, 74, fourth valve;

K7, an inflation control valve, K5 and a valve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The terms "first," "second," and the like, herein, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, the "or" in the present application means at least one of the connected objects. For example, "A or B" encompasses three schemes, namely scheme one including A and excluding B, scheme two including B and excluding A, scheme three including both A and B. The character "/" generally indicates that the context-dependent object is an "or" relationship.

In the technical solutions of the present disclosure, terms "connected," "coupled," or "connected" are not limited to physical or mechanical connections, but may include electrical connections.

In addition, the technical features of the different embodiments of the present application described below may be combined with each other as long as they do not collide with each other.

At present, the valve is detected by adopting a manual clamping and detecting mode, and equipment disassembly and assembly are required to be carried out in the process, for example, after water is injected into a valve cavity of a detected valve, a water injection pipeline is required to be disassembled, a pressurizing pipeline is connected to the detected valve, pressurizing and pressure maintaining are carried out after the pressurizing pipeline is connected, the pressurizing pipeline is required to be disassembled after the subsequent test is finished, accumulated water in the valve cavity is discharged through the connecting water injection pipeline, the operation is complex, and the detection efficiency is low.

The embodiment of the utility model provides a valve detection device, which is shown in FIG. 1, and comprises a portal frame 1, a compression assembly 2, a valve port control assembly 3, a control pipeline 4, a water pump device 5 and a servo pressurizing device 6;

The compression assembly 2 is arranged on the lower cross beam 11 of the portal frame 1 and is used for clamping and fixing the valve 100 to be tested;

The valve port control assembly 3 is arranged on the upper cross beam 12 of the portal frame 1 and is used for closing or opening the outlet of the tested valve 100 and discharging gas in the valve cavity of the tested valve 100 when the outlet of the tested valve 100 is closed;

The water outlet end of the water pump device 5 is communicated with the inlet of the valve 100 to be tested through a control pipeline 4, and the pressurizing port of the servo pressurizing device 6 is communicated with the inlet of the valve 100 to be tested through the control pipeline 4;

The control pipeline 4 is used for controlling the communication or disconnection between the water outlet end of the water pump device 5 and the inlet of the valve 100 to be tested, and is also used for controlling the communication or disconnection between the pressurizing port of the servo pressurizing device 6 and the inlet of the valve 100 to be tested.

It should be noted that the tested valve 100 includes a valve cavity, and an inlet of the tested valve 100 and an outlet of the tested valve 100 are respectively communicated with the valve cavity of the tested valve 100.

Specifically, when the detected valve 100 needs to be detected, a user can clamp and fix the detected valve 100 by using the pressing component 2, close the outlet of the detected valve 100 by using the valve port control component 3, and then control the water pump device 5 (to operate the water pump device 5 to start up for filling water) by using the control pipeline 4 to fill water into the valve cavity of the detected valve 100 from the inlet of the detected valve 100. Along with the water flow is injected into the valve cavity of the tested valve 100 from bottom to top, the gas in the valve cavity is extruded to the outlet of the tested valve 100, in this case, the valve port control assembly 3 discharges the gas in the valve cavity of the tested valve 100 until the gas in the valve cavity is completely discharged, the control pipeline 4 is adopted to control the water outlet end of the water pump device 5 to be shut off from the inlet of the tested valve 100, and the water pump device 5 is stopped to stop water filling.

After that, the servo pressurizing device 6 is started, and the pressurizing port of the servo pressurizing device 6 is communicated with the inlet of the valve 100 to be tested through the control pipeline 4, and the servo pressurizing device 6 pressurizes the water in the valve cavity to a preset pressure value. The pressure maintaining of the valve cavity is realized by switching off the connection between the pressurizing port of the servo pressurizing device 6 and the inlet of the tested valve 100 through the control pipeline 4. And when the pressure is maintained for a preset time period, detecting whether the pressure reduction value in the valve cavity exceeds a preset standard threshold value. If the test valve 100 exceeds the predetermined value, the test valve 100 is judged to be failed.

If the pressure is not exceeded, the pressure boost port of the servo pressure boost device 6 is communicated with the inlet of the valve 100 to be tested through the control pipeline 4, the servo pressure boost device 6 is adopted to decompress the valve cavity, then secondary pressure boost is carried out (namely, the servo pressure boost device 6 is started, the pressure boost port of the servo pressure boost device 6 is communicated with the inlet of the valve 100 to be tested through the control pipeline 4, the servo pressure boost device 6 boosts the water in the valve cavity to a preset pressure value), and the pressure boost port of the servo pressure boost device 6 and the inlet of the valve 100 to be tested are shut off through the control pipeline 4, so that the pressure maintaining of the valve cavity is realized. And when the pressure is maintained for a preset time period, detecting whether the pressure reduction value in the valve cavity exceeds a preset standard threshold value, and if not, judging that the tested valve 100 is qualified.

After the detection is completed, the servo pressurizing device 6 is adopted to depressurize the valve cavity, then the valve port control assembly 3 is adopted to open the outlet of the detected valve 100, the control pipeline 4 is adopted to control the communication between the water outlet end of the water pump device 5 and the inlet of the detected valve 100, the water pump device 5 is operated to start up for pumping water, and accumulated water in the valve cavity flows back to the water pump device 5 under the action of gravity and the suction force of the water pump device.

In some embodiments, the valve 100 includes a pressure gauge for measuring the pressure in the valve chamber. The user can read the manometer to determine that the servo pressurizing means 6 pressurizes the water in the valve chamber to a preset pressure value and to determine whether the pressure drop in the valve chamber exceeds a preset standard threshold. In practical applications, the preset duration (i.e. dwell time), the preset pressure value, and the preset standard threshold are detection process parameters specifically determined according to the actual model specification of the valve 100 to be detected, which cannot be exhausted and should not be considered as unclear.

In the embodiment of the utility model, the servo pressurizing device 6 can be utilized to realize high-precision pressurizing of the valve to be tested, and the accuracy of the detection result is improved.

The valve detection device comprises a portal frame, a compression assembly, a valve port control assembly, a control pipeline, a water pump device and a servo pressurizing device, wherein the compression assembly is arranged on a lower cross beam of the portal frame and used for clamping and fixing a detected valve, the valve port control assembly is arranged on an upper cross beam of the portal frame and used for closing or opening an outlet of the detected valve and discharging gas in a valve cavity of the detected valve when the outlet of the detected valve is closed, a water outlet end of the water pump device is communicated with an inlet of the detected valve through the control pipeline, a pressurizing port of the servo pressurizing device is communicated with the inlet of the detected valve through the control pipeline, the control pipeline is used for controlling communication or disconnection between a water outlet end of the water pump device and the inlet of the detected valve, and is also used for controlling communication or disconnection between a pressurizing port of the servo pressurizing device and the inlet of the detected valve.

In some embodiments of the present utility model, optionally, referring to fig. 2a, the compressing assembly 2 includes a slide rail 21, a slide table 22, and a clamping member 23;

The sliding rail 21 is fixedly arranged on the lower cross beam 11, and the length direction of the sliding rail 21 is perpendicular to the length direction of the lower cross beam 11;

The sliding table 22 is arranged on the sliding rail 21 and can slide along the length direction of the sliding rail 21;

the clamping piece 23 is arranged on the sliding table 22 and is used for clamping and fixing the valve 100 to be tested on the sliding table 22.

In practical application, when the tested valve 100 is clamped and fixed, the sliding table 22 is pushed out, so that the clamping assembly 2 is conveniently operated to clamp and fix the tested valve 100. After the clamping and fixing are completed, the sliding table 22 is pushed to move inwards until the outlet of the tested valve 100 is opposite to the position of the valve port control assembly 3, so that the valve port control assembly 3 can conveniently close or open the outlet of the tested valve 100, and the valve port control assembly is used for discharging gas in the valve cavity of the tested valve 100 when the outlet of the tested valve 100 is closed.

In some embodiments of the present utility model, optionally, referring to fig. 2a and 2b, the valve port control assembly 3 comprises a hydraulic cylinder 31 and a vent assembly 32;

The cylinder body of the hydraulic cylinder 31 is arranged on the upper cross beam 12, and the telescopic arm of the hydraulic cylinder 31 is arranged in the cylinder body in a sliding telescopic manner along the length direction of the cylinder body, wherein the first end part of the telescopic arm can extend out of the cylinder body to the lower part of the upper cross beam 12;

The first end part is provided with a connecting disc 33 used for being connected with the outlet of the valve 100 to be tested in a sealing way, the connecting disc 33 is connected with the outlet of the valve 100 to be tested, and the outlet of the valve 100 to be tested is closed, the connecting disc 33 is separated from the outlet of the valve 100 to be tested, and the outlet of the valve 100 to be tested is opened;

The exhaust assembly 32 is provided on the connection pad 33, and can communicate with an opening of the valve under test 100 through the connection pad 33.

It should be noted that, in some embodiments, in order to ensure that the test result of the tested valve 100 has high accuracy, the connecting disc 33 is provided with a sealing rubber ring, so that the connection pad 33 is sealed with the outlet of the tested valve 100, and the problem that the test result is inaccurate due to release of pressure from the connection pad during the test is avoided. In addition, the exhaust assembly 32 is arranged on the connecting disc 33, so that the valve port control assembly 3 can exhaust the gas in the valve cavity of the tested valve 100 when the outlet of the tested valve 100 is closed. The device is simple in structure and high in reliability.

In some embodiments of the present utility model, optionally, referring to FIG. 2a, the valve port control assembly 3 further includes a linear sensor 34 and a guide rod 35. The linear sensor 34 is electrically connected to the connection pad 33, and can detect the extension distance of the telescopic arm of the hydraulic cylinder 31. One end of the guide rod 35 passes through the small hole of the upper beam 12 and is fixed to the connection pad 33. The upright column on one side of the portal frame 1, which is close to the guide rod 35, is provided with two position sensors 13 which are arranged at intervals, and the position sensors 13 are used for detecting the position of the guide rod 35 fixed at the end part of the connecting disc 33, generating a position signal and sending the position signal to the interaction end. It will be appreciated that the position signal also characterizes the downward extension distance of the telescopic arm of the hydraulic ram 31. In practical application, the position sensor 13 located at the lower side of the two position sensors 13 is used for calibrating the safe extension distance of the telescopic arm of the hydraulic cylinder 31.

In some embodiments of the present utility model, optionally, referring to FIGS. 2b and 3, the exhaust assembly 32 comprises an air pipe 321, an exhaust tank 322, a pneumatic valve 323, a pressure sensor 324, and an exhaust valve 325;

The inlet end of the air pipe 321 is communicated with the bottom outlet of the exhaust tank 322, and a pneumatic valve 323 is arranged on the air pipe 321 and used for controlling the communication or disconnection between the inlet end of the air pipe 321 and the outlet end of the air pipe 321;

The bottom inlet 322a of the exhaust tank 322 is communicated with the connecting disc 33 through a pipeline, and is communicated with the outlet of the valve 100 to be tested through the connecting disc 33, a valve K5 is arranged on the pipeline, and the valve K5 is used for controlling the communication or disconnection between the bottom inlet 322a of the exhaust tank 322 and the connecting disc 33;

A pressure sensor 324 is provided at the top of the exhaust tank 322 for acquiring a pressure signal in the exhaust tank 322 and transmitting the pressure signal to an interactive terminal associated with a user, and an exhaust valve 325 is provided at the top outlet of the exhaust tank 322.

It should be noted that, the pressure sensor 324 measures the internal pressure of the exhaust tank 322, and sends a pressure signal representing the internal pressure of the exhaust tank 322 to the interaction end for the user to study the testing process.

When the valve 100 to be tested is tested, the pneumatic valve 323 is closed, the valve K5 is opened, the valve cavity of the valve 100 to be tested is filled with water, part of water and gas extruded by the water enter the exhaust tank 322 through the outlet of the valve 100 to be tested, the connecting disc 33, the pipeline and the bottom inlet 322a of the exhaust tank 322, during the process, the gas entering the exhaust tank 322 is discharged through the exhaust valve 325 arranged at the top outlet of the exhaust tank 322, and the water entering the exhaust tank 322 is accumulated in the exhaust tank 322. When the user judges that the exhaust tank 322 is full of water according to the pressure signal or enters a test stage requiring pressurizing the water in the valve cavity, the user can control the valve K5 to be closed, stop the water flowing into the exhaust tank 322, and control the pneumatic valve 323 to be opened, and the water accumulated in the exhaust tank 322 is discharged through the air pipe 321.

In some embodiments of the present utility model, optionally, referring to FIG. 2b, the exhaust assembly 32 further includes an inflation conduit 326 and an inflation control valve K7 disposed on the inflation conduit 326;

One end part of the air inflation pipeline 326 is communicated with the connecting disc 33 and is communicated with the outlet of the tested valve 100 through the connecting disc 33;

The inflation control valve K7 is used for controlling the communication or disconnection between the air source and the outlet of the valve 100 under test.

In practical application, when the tested valve 100 is judged to be unqualified in the test completion or pressure maintaining test stage and water in the valve cavity needs to be emptied, the servo pressurizing device 6 is controlled to reversely rotate, so that the pressure in the valve cavity is reduced. When the pressure in the valve cavity is reduced to a safe pressure value, the fourth valve 74 on the drain pipe section 44 is opened, and the inflation control valve K7 is opened, so that the compressed gas of the gas source enters the valve cavity of the valve 100 to be tested through the inflation pipeline 326, the connecting disc 33 and the outlet of the valve 100 to be tested, and the drainage of residual water in the valve cavity is accelerated (the drainage channel is the valve cavity, the water injection pipe section 42 and the drain pipe section 44).

In some embodiments of the utility model, optionally, referring to fig. 2a, the clamping members 23 have at least two sets arranged at intervals. Referring to fig. 2a, the clamping members 23 have two sets of opposite clamping members 23, so that the clamping force of the two sets of clamping members 23 is uniform, and the valve 100 to be tested can be firmly clamped on the sliding table 22.

In some embodiments of the present utility model, optionally, referring to fig. 4, the compacting assembly 2 further includes a rodless cylinder 24 for driving the sliding table 22 to slide along the length direction of the sliding rail 21. In the embodiment of the utility model, the sliding table 22 is driven by the rodless cylinder 24, so that the problem of inaccurate displacement of the tested valve 100 when the tested valve 100 is manually pushed can be avoided, the problem of great time consumption when the position of the tested valve 100 and the valve port control assembly 3 is adjusted due to the inaccurate displacement of the tested valve 100 is avoided, and the test efficiency is improved.

In some embodiments of the present utility model, optionally, referring to fig. 5a and 5b, the control pipeline 4 comprises a water inlet pipe section 41, a water injection pipe section 42, a pressure increasing pipe section 43, and a water discharging pipe section 44;

The water inlet pipe section 41 is communicated with the water outlet end of the water pump device 5, and a first valve 71 is arranged between the water inlet pipe section 41 and the water outlet end of the water pump device 5, and the first valve 71 is used for controlling the communication or the disconnection between the water inlet pipe section 41 and the water outlet end of the water pump device 5;

one end of the water injection pipe section 42 is communicated with the inlet of the valve 100 to be tested, and the other end is communicated with the water inlet pipe section 41;

One end of the pressurizing pipe section 43 is communicated with the pressurizing port, the other end of the pressurizing pipe section is communicated with the water injection pipe section 42, a third valve 73 is arranged on the pressurizing pipe section 43, and the third valve 73 is used for controlling the communication or disconnection between the pressurizing port and the water injection pipe section 42;

One end of the water draining pipe section 44 is communicated with the water filling pipe section 42, the other end is communicated with the water return end of the water pump device 5, a fourth valve 74 is arranged on the water draining pipe section 44, and the fourth valve 74 is used for controlling the communication or disconnection between the water filling pipe section 42 and the water return end of the water pump device 5.

The working principle of the control line 4 will be described below with reference to the valve port control assembly 3 according to the embodiment of the present utility model illustrated in fig. 2 b.

When the valve cavity of the valve 100 to be tested is filled with water, the first valve 71, the third valve 73 and the valve K5 are opened, the other valves are closed, and the water pumped by the water pump device 5 enters the valve cavity of the valve 100 to be tested through the water inlet pipe section 41, the water inlet pipe section 42 and the inlet of the valve 100 to be tested.

When the gas in the valve cavity of the valve 100 to be tested is completely discharged, the first valve 71 and the valve K5 are closed, and the water injection is stopped. When the valve cavity of the valve 100 to be tested is pressurized, the servo pressurizing device 6 is started, the first valve 71 and the valve K5 are kept closed, and the third valve 73 and the fourth valve 74 are operated to be opened. The passage from the pressurizing port and the pressurizing pipe section 43 to the water injection pipe section 42 is communicated, and the servo pressurizing device 6 pressurizes the valve cavity of the valve 100 to be tested. When the test is completed and accumulated water in the valve cavity needs to be emptied, the servo pressurizing device 6 is controlled to reversely rotate, the pressure in the valve cavity is reduced, when the pressure in the valve cavity is reduced to a safe pressure value, the fourth valve 74 on the drain pipe section 44 is opened, the inflation control valve K7 is opened, so that compressed gas from a gas source enters the valve cavity of the valve 100 to be tested through the inflation pipeline 326, the connecting disc 33 and the outlet of the valve 100 to be tested, and the drainage of residual water in the valve cavity is accelerated (the drainage channel is the valve cavity, the water injection pipe section 42, the drain pipe section 44 and the water pump device 5).

Referring to fig. 6, a water pump apparatus 5 according to an embodiment of the present utility model is illustrated, wherein the water pump apparatus 5 includes a water tank 55, an oil suction filter 51, an oil return filter 52, a level gauge 54, a water inlet tee 58, a water outlet tee 59, a check valve 510, and a water pump 56.

When the water pump device 5 fills water into the valve 100 to be tested, the water inlet tee 58 and the water outlet tee 59 are in a water filling working position, the water pump 56 sucks water in the water tank 55 through the oil suction filter 51 by a pipeline, and one end of the water outlet tee 59 (namely, the water outlet end of the water pump device 5 in the embodiment of the utility model) enters the control pipeline 4 to fill water into the valve 100 to be tested. When the detection of the valve 100 to be detected is finished and water is drained, one port (the other end of the drain pipe section 44 is communicated with the water return end of the water pump device 5) of the control pipeline 4 is connected with the oil return filter 52 (namely, the water return end of the water pump device 5 in the embodiment of the utility model is equivalent to the water return end of the water pump device 5, and the oil return filter 52 is arranged between the water return end and the water tank 55), so that water is recovered into the water tank 55.

When the water tank is cleaned, the water inlet and outlet tee joint is switched to a water discharge working position, the water pump 56 directly takes water into the water tank 55 through a pipeline, and the modified water is directly discharged to the wastewater tank through a sewage discharge port of the water outlet tee joint 59. The precipitated impurities in the water tank 55 may be discharged through the drain 511 at the bottom of the water tank 55.

Referring to fig. 7, a servo supercharging device 6 according to an embodiment of the present utility model is illustrated, wherein the servo supercharging device 6 includes a supercharging device frame 64, and further includes a speed reducer 61, a servo motor 62, a reciprocating mechanism 63, a supercharging plunger 65, a supercharging cylinder 66, and a supercharging port 67 (in practical application, one end of the supercharging tube section 43 is communicated with the supercharging port 67) disposed on the supercharging device frame 64. The power output end of the servo motor 62 is in transmission connection with the speed reducer 61, the power of the servo motor 62 is transmitted by the speed reducer 61 and is output to the reciprocating mechanism 63 after being reduced, the reciprocating mechanism 63 drives the pressurizing plunger 65 to move towards the pressurizing cylinder 66, water in the pressurizing cylinder 66 (when pressurizing, the pressurizing port 67 and the channel from the pressurizing pipe section 43 to the water injection pipe section 42 are conducted) is extruded, and then the water pressure in the valve cavity of the tested valve 100 rises, so that pressurizing is realized.

In some embodiments of the present utility model, optionally, referring to FIGS. 5a and 5b, control line 4 further comprises a pressure transmitter 45 and a controller;

The pressure transmitter 45 is arranged on the water injection pipe section 42 and is used for detecting the pressure in the valve cavity of the valve 100 to be tested and transmitting a pressure signal to the controller;

The controller includes:

The first control interface is used for receiving the pressure signal and forwarding the pressure signal to an interaction end associated with a user.

A pressure transmitter is a sensor device for measuring the pressure in a liquid or gas and converting the pressure signal into an electrical signal for output. Such devices are commonly used in industrial automation systems for monitoring pressure changes in pipes, vessels or equipment. The pressure transmitter works on the principle that the sensor element of the pressure transmitter is acted on by the induction pressure to generate corresponding electric signal output. These electrical signals may be analog signals (e.g., 4-20mA current signals or 0-10V voltage signals) or digital signals (e.g., MODBUS communication protocol). Pressure transmitters generally have high accuracy, stability, and reliability and can operate for long periods of time in harsh operating environments. They are widely used in various fields, such as industrial manufacturing, chemical, oil and gas, medical equipment, etc., for monitoring and controlling pressure parameters in systems.

It will be appreciated that the pressure transmitter 45 is disposed on the water injection pipe 42, and is capable of directly detecting the pressure of the water injection pipe 42, and the water injection pipe 42 is in communication with the valve cavity of the valve 100 to be tested, so that the pressure of the water injection pipe 42 detected by the pressure transmitter 45 is also the pressure in the valve cavity of the valve 100 to be tested, and the pressure signal is indicative of the pressure in the valve cavity of the valve 100 to be tested.

Through setting up pressure transmitter 45 and controller, can make the user know the pressure value on each valve in time through interpreting pressure signal, realize the accurate judgement of studying to testing process.

In some embodiments of the utility model, optionally, the controller further comprises:

the second control interface is configured to receive the first valve opening signal or the first valve closing signal sent by the interaction end, and forward the first valve opening signal or the first valve closing signal to the first valve 71;

The third control interface is configured to receive a third valve opening signal or a third valve closing signal sent by the interaction end, and forward the third valve opening signal or the third valve closing signal to the third valve 73;

And the fourth control interface is configured to receive a fourth valve opening signal or a fourth valve closing signal sent by the interaction end, and forward the fourth valve opening signal or the fourth valve closing signal to the fourth valve 74.

Through the controller, a user can control the detection process through the interaction end, the safety risk of controlling the detection process by manually approaching the operation valve is avoided, and safety detection is realized.

In some embodiments of the present utility model, optionally, referring to FIG. 4, and referring to FIGS. 5a and 5b, the water inlet pipe section 41 includes a first water inlet branch pipe section 41a and a second water inlet branch pipe section 41b;

the water injection pipe section 42 is communicated with the first water inlet branch pipe section 41a;

One end of the first water inlet branch pipe section 41a is communicated with the water outlet end of the water pump device 5 and is provided with a first valve 71, one end of the second water inlet branch pipe section 41b is communicated with the first water inlet branch pipe section 41a, the other end of the second water inlet branch pipe section 41b is communicated with the other end of the first water inlet branch pipe section 41a through a differential pressure transmitter 46, and a second valve 72 is arranged on the second water inlet branch pipe section 41b;

The differential pressure transmitter 46 is configured to detect a differential pressure between the first water inlet branch pipe section 41a and the second water inlet branch pipe section 41b, and send differential pressure data to the interaction end.

When the water injection of the valve cavity of the valve 100 to be tested is completed, the first valve 71 is closed, the third valve 73 and the fourth valve 74 are opened, the servo pressurizing device 6 is started, the pressurizing port and the passage from the pressurizing pipe section 43 to the water injection pipe section 42 are conducted, and the servo pressurizing device 6 pressurizes the valve cavity of the valve 100 to be tested. When the pressurization of the valve cavity of the tested valve 100 is completed and the pressure maintaining test is required, the third valve 73 is closed, and the second valve 72 is closed, the pressure from the second valve 72 on the second water inlet branch pipe section 41b to the section of the differential pressure transmitter 46 is kept to be the pressurized pressure. After that, a pressure maintaining test is performed, and if there is leakage in the valve chamber of the valve 100 to be tested, the pressure in the first water inlet branch pipe 41a is reduced, and the pressure difference between the first water inlet branch pipe 41a and the second water inlet branch pipe 41b detected by the pressure difference transmitter 46 is increased, because the water inlet pipe 42 is connected to the first water inlet branch pipe 41 a. Thus, the user can determine the pressure maintaining test result of the valve cavity of the tested valve 100 by using the differential pressure signal sent by the differential pressure transmitter 46.

In practical application, in the stage of testing the pressure maintaining of the valve cavity of the valve 100 to be tested, the second valve 72 is closed, the user observes the pressure difference signal through the interactive end, and when the pressure maintaining is performed for a preset time period, the pressure difference between the first water inlet branch pipe section 41a and the second water inlet branch pipe section 41b exceeds the preset standard threshold, so that the failure of the valve 100 to be tested can be determined.

When the pressure is maintained for a preset time period, the pressure difference between the first water inlet branch pipe section 41a and the second water inlet branch pipe section 41b does not exceed a preset standard threshold value, the pressure boost port of the servo pressurizing device 6 is communicated with the inlet of the tested valve 100 through the control pipeline 4, the servo pressurizing device 6 is adopted to decompress the valve cavity, then the second pressurizing is carried out (namely, the servo pressurizing device 6 is started, the pressure boost port of the servo pressurizing device 6 is communicated with the inlet of the tested valve 100 through the control pipeline 4, the servo pressurizing device 6 pressurizes the water in the valve cavity to a preset pressure value), and the pressure boost port of the servo pressurizing device 6 and the inlet of the tested valve 100 are closed through the control pipeline 4, so that the pressure maintaining of the valve cavity is realized. When the pressure is maintained for a preset time period, the pressure difference between the first water inlet branch pipe section 41a and the second water inlet branch pipe section 41b does not exceed a preset standard threshold value, and the tested valve 100 can be judged to be qualified.

In some embodiments of the present utility model, optionally, referring to fig. 4, the valve detection device further includes:

The device comprises a frame 200, a portal frame 1, a compression assembly 2, a valve port control assembly 3, a control pipeline 4, a water pump device 5 and a servo pressurizing device 6, wherein the servo pressurizing device 6is arranged on the frame 200;

The universal wheel assembly 300 is provided with a plurality of groups, and the universal wheel assemblies 300 are arranged at the bottom of the frame 200 at intervals.

The integrated arrangement of all the devices can be realized by arranging the stand 200, and a plurality of groups of universal wheel assemblies 300 are further arranged at the bottom of the stand 200, so that the detection device can be conveniently transported and deployed.

In some embodiments of the present utility model, optionally, a control console 400 is further disposed on the rack 200, where the control console 400 includes a controller and an interaction end in the embodiments of the present utility model.

The embodiments of the present utility model have been described above with reference to the accompanying drawings, but the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are to be protected by the present utility model.

Claims (11)

1. The valve detection device is characterized by comprising a portal frame, a compression assembly, a valve port control assembly, a control pipeline, a water pump device and a servo pressurizing device;

The compression assembly is arranged on the lower cross beam of the portal frame and used for clamping and fixing the valve to be tested;

The valve port control assembly is arranged on the upper cross beam of the portal frame and is used for closing or opening the outlet of the tested valve and discharging gas in the valve cavity of the tested valve when the outlet of the tested valve is closed;

the water outlet end of the water pump device is communicated with the inlet of the valve to be tested through the control pipeline, and the pressurizing port of the servo pressurizing device is communicated with the inlet of the valve to be tested through the control pipeline;

The control pipeline is used for controlling the communication or disconnection between the water outlet end of the water pump device and the inlet of the tested valve, and is also used for controlling the communication or disconnection between the pressurizing port of the servo pressurizing device and the inlet of the tested valve.

2. The valve inspection apparatus of claim 1, wherein the compression assembly comprises a slide rail, a slide table, and a clamp;

the sliding rail is fixedly arranged on the lower cross beam, and the length direction of the sliding rail is perpendicular to the length direction of the lower cross beam;

the sliding table is arranged on the sliding rail and can slide along the length direction of the sliding rail;

The clamping piece is arranged on the sliding table and used for clamping and fixing the tested valve on the sliding table.

3. The valve inspection device of claim 2, wherein the valve port control assembly comprises a hydraulic ram and a vent assembly;

the cylinder body of the hydraulic cylinder is arranged on the upper cross beam, and the telescopic arm of the hydraulic cylinder is arranged in the cylinder body in a sliding telescopic manner along the length direction of the cylinder body, wherein the first end part of the telescopic arm can extend out of the cylinder body to the lower part of the upper cross beam;

The first end part is provided with a connecting disc used for being connected with the outlet of the tested valve in a sealing way, the connecting disc is connected with the outlet of the tested valve, the outlet of the tested valve is closed, the connecting disc is separated from the outlet of the tested valve, and the outlet of the tested valve is opened;

The exhaust assembly is arranged on the connecting disc and can be communicated with an opening of the valve to be tested through the connecting disc.

4. The valve inspection apparatus of claim 3, wherein the vent assembly comprises a gas line, a vent canister, a pneumatic valve, a pressure sensor, and a vent valve;

the inlet end of the air pipe is communicated with the bottom outlet of the exhaust tank, and the pneumatic valve is arranged on the air pipe and is used for controlling the communication or disconnection between the inlet end of the air pipe and the outlet end of the air pipe;

The bottom inlet of the exhaust tank is communicated with the connecting disc through a pipeline and is communicated with the outlet of the valve to be tested through the connecting disc;

The pressure sensor is arranged at the top of the exhaust tank and is used for acquiring a pressure signal in the exhaust tank and sending the pressure signal to an interaction end associated with a user, and the exhaust valve is arranged at the top outlet of the exhaust tank.

5. The valve testing apparatus of claim 2, wherein the clamping member has at least two sets disposed in spaced apart relation.

6. The valve testing apparatus of claim 2, wherein the hold down assembly further comprises a rodless cylinder for driving the slide table to slide along a length of the slide rail.

7. The valve inspection device of claim 1, wherein the control line comprises a water inlet pipe section, a water injection pipe section, a pressurization pipe section, and a drain pipe section;

The water inlet pipe section is communicated with the water outlet end of the water pump device, and a first valve is arranged between the water inlet pipe section and the water outlet end of the water pump device and is used for controlling the communication or the disconnection between the water inlet pipe section and the water outlet end of the water pump device;

one end of the water injection pipe section is communicated with an inlet of the valve to be tested, and the other end of the water injection pipe section is communicated with the water inlet pipe section;

One end of the pressurizing pipe section is communicated with the pressurizing port, the other end of the pressurizing pipe section is communicated with the water injection pipe section, a third valve is arranged on the pressurizing pipe section, and the third valve is used for controlling the communication or disconnection between the pressurizing port and the water injection pipe section;

One end of the water draining pipe section is communicated with the water filling pipe section, the other end of the water draining pipe section is communicated with the water return end of the water pump device, a fourth valve is arranged on the water draining pipe section and used for controlling the communication or disconnection between the water filling pipe section and the water return end of the water pump device.

8. The valve testing apparatus of claim 7, wherein the control line further comprises a pressure transmitter and a controller;

The pressure transmitter is arranged on the water injection pipe section and is used for detecting the pressure in the valve cavity of the valve to be detected and transmitting a pressure signal to the controller;

The controller includes:

and the first control interface is used for receiving the pressure signal and forwarding the pressure signal to an interaction end associated with a user.

9. The valve detection apparatus of claim 8, wherein the controller further comprises:

the second control interface is used for receiving a first valve opening signal or a first valve closing signal sent by the interaction end and forwarding the first valve opening signal or the first valve closing signal to the first valve;

The third control interface is used for receiving a third valve opening signal or a third valve closing signal sent by the interaction end and forwarding the third valve opening signal or the third valve closing signal to the third valve;

And the fourth control interface is used for receiving a fourth valve opening signal or a fourth valve closing signal sent by the interaction end and forwarding the fourth valve opening signal or the fourth valve closing signal to the fourth valve.

10. The valve inspection apparatus of claim 7, wherein the inlet pipe section comprises a first inlet branch pipe section and a second inlet branch pipe section, the control line further comprising a differential pressure transmitter and a second valve;

The water injection pipe section is communicated with the first water inlet branch pipe section;

One end part of the first water inlet branch pipe section is communicated with the water outlet end of the water pump device and provided with the first valve, one end part of the second water inlet branch pipe section is communicated with the first water inlet branch pipe section, the other end part of the second water inlet branch pipe section is communicated with the other end part of the first water inlet branch pipe section through the differential pressure transmitter, and the second valve is arranged on the second water inlet branch pipe section;

The pressure difference transmitter is used for detecting the pressure difference between the first water inlet branch pipe section and the second water inlet branch pipe section and sending pressure difference data to an interaction end associated with a user.

11. The valve detection apparatus according to any one of claims 1 to 10, characterized by further comprising:

The gantry, the compression assembly, the valve port control assembly, the control pipeline, the water pump device and the servo pressurizing device are all arranged on the gantry;

The universal wheel assemblies are provided with a plurality of groups, and the plurality of groups of the universal wheel assemblies are arranged at the bottom of the frame at intervals.