Valve detection device

Abstract

The utility model provides a valve detection device. The valve detection device comprises a portal frame, a pressing assembly, a valve port control assembly, a control pipeline, a water pump device and a servo supercharging device, the pressing assembly is arranged on a lower cross beam of the portal frame and is used for clamping and fixing a tested valve; the valve port control assembly is arranged on an upper cross beam of the portal frame and is used for closing or opening an outlet of the tested valve and exhausting gas in a 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 tested valve through a control pipeline, and the pressurizing port of the servo pressurizing device is communicated with the inlet of the tested valve through a control pipeline; and the control pipeline is used for controlling the connection 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 connection or disconnection between the supercharging port of the servo supercharging device and the inlet of the tested valve. According to the utility model, high-efficiency detection of the detected valve can be realized.

Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of valve detection, and in particular to a valve detection device. Background Art

[0002] Steam traps and stop valves are key equipment in steam systems. Steam traps are key equipment that connect the steam and condensate systems. Steam traps automatically discharge condensate and non-condensable gases while preventing steam leakage. It is not only the dividing point between steam and water in the system, but also the dividing point of pressure in the system. Stop valves are pipeline accessories used to open and close pipelines, adjust and control the parameters of the conveying medium. They are control components in fluid conveying systems and have functions such as cutoff, adjustment, diversion, diversion or overflow pressure relief.

[0003] Steam traps and stop valves are subjected to high temperature and high pressure in the steam system when they are working. Their sealing and pressure resistance must be excellent to meet the needs of the work. Therefore, the inspection of steam traps and stop valves is particularly important.

[0004] At present, valve inspection adopts the method of manual clamping and inspection, which requires tedious equipment disassembly and assembly, cumbersome operation and low inspection efficiency. Utility Model Content

[0005] The embodiment of the utility model provides a valve detection device to solve the problem that the existing valve detection adopts a manual clamping and detection method, the process requires cumbersome equipment disassembly and assembly, the operation is cumbersome, and the detection efficiency is low.

[0006] In order to solve the above technical problems, the utility model is achieved as follows:

[0007] In a first aspect, the utility model provides a valve detection device, comprising: a gantry, a clamping assembly, a valve port control assembly, a control pipeline, a water pump device, and a servo booster device;

[0008] The clamping assembly is arranged on the lower crossbeam of the gantry and is used to clamp and fix the valve to be tested;

[0009] The valve port control assembly is arranged on the upper crossbeam of the gantry, and is used to close or open the outlet of the tested valve, and is used to discharge the gas in the valve cavity of the tested valve when the outlet of the tested valve is closed;

[0010] The water outlet of the water pump device is connected to the inlet of the tested valve through the control pipeline, and the boost port of the servo booster device is connected to the inlet of the tested valve through the control pipeline;

[0011] The control pipeline is used to control the connection or disconnection between the water outlet of the water pump device and the inlet of the tested valve, and is also used to control the connection or disconnection between the boost port of the servo boost device and the inlet of the tested valve.

[0012] Optionally, the clamping assembly includes: a slide rail, a slide table, and a clamping member;

[0013] The slide rail is fixedly arranged on the lower cross beam, and the length direction of the slide rail is perpendicular to the length direction of the lower cross beam;

[0014] The slide table is arranged on the slide rail and can slide along the length direction of the slide rail;

[0015] The clamping member is arranged on the slide platform and is used for clamping and fixing the valve to be tested on the slide platform.

[0016] Optionally, the valve port control assembly includes: a hydraulic cylinder and an exhaust assembly;

[0017] The cylinder body of the hydraulic oil cylinder is arranged on the upper cross beam, and the telescopic arm of the hydraulic oil cylinder is arranged in the cylinder body in a sliding and telescopic manner along the length direction of the cylinder body, wherein the first end of the telescopic arm can extend from the cylinder body to the bottom of the upper cross beam;

[0018] The first end is provided with a connection disk for sealingly connecting with the outlet of the tested valve; when the connection disk is connected with the outlet of the tested valve, the outlet of the tested valve is closed; when the connection disk is separated from the outlet of the tested valve, the outlet of the tested valve is opened;

[0019] The exhaust assembly is arranged on the connection disk and can be connected to the opening of the valve to be tested through the connection disk.

[0020] Optionally, the exhaust assembly includes: an air pipe, an exhaust tank, a pneumatic valve, a pressure sensor and an exhaust valve;

[0021] The inlet end of the air pipe is connected to the bottom outlet of the exhaust tank, and the pneumatic valve is arranged on the air pipe to control the connection or disconnection between the inlet end of the air pipe and the outlet end of the air pipe;

[0022] The bottom inlet of the exhaust tank is connected to the connection disk through a pipeline, and is connected to the outlet of the valve to be tested through the connection disk; a valve is provided on the pipeline, and the valve is used to control the connection or disconnection between the bottom inlet of the exhaust tank and the connection disk;

[0023] The pressure sensor is arranged at the top of the exhaust tank, and is used to obtain the pressure signal in the exhaust tank and send the pressure signal to an interactive terminal associated with a user; the exhaust valve is arranged at the top outlet of the exhaust tank.

[0024] Optionally, the clamping members include at least two groups that are spaced apart from each other.

[0025] Optionally, the clamping assembly further includes: a rodless cylinder, used to drive the slide to slide along the length direction of the slide rail.

[0026] Optionally, the control pipeline includes: a water inlet pipe section, a water injection pipe section, a pressurization pipe section, and a drainage pipe section;

[0027] The water inlet pipe section is connected to the water outlet end of the water pump device, and a first valve is provided between the two, and the first valve is used to control the connection or disconnection between the water inlet pipe section and the water outlet end of the water pump device;

[0028] One end of the water injection pipe section is connected to the inlet of the tested valve, and the other end is connected to the water inlet pipe section;

[0029] One end of the boosting pipe section is connected to the boosting port, and the other end is connected to the water injection pipe section. A third valve is provided on the boosting pipe section, and the third valve is used to control the connection or disconnection between the boosting port and the water injection pipe section;

[0030] One end of the drainage pipe section is connected to the water injection pipe section, and the other end is connected to the return water end of the water pump device. A fourth valve is provided on the drainage pipe section, and the fourth valve is used to control the connection or disconnection between the water injection pipe section and the return water end of the water pump device.

[0031] Optionally, the control pipeline further includes: a pressure transmitter and a controller;

[0032] The pressure transmitter is arranged in the water injection pipe section, and is used to detect the pressure in the valve cavity of the tested valve and send the pressure signal to the controller;

[0033] The controller comprises:

[0034] The first control interface is used to receive the pressure signal and forward the pressure signal to an interaction terminal associated with the user.

[0035] Optionally, the controller further includes:

[0036] a second control interface, configured to receive a first valve opening signal or a 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;

[0037] A third control interface, 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;

[0038] The fourth control interface is used 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.

[0039] Optionally, the water inlet pipe section includes a first water inlet branch pipe section and a second water inlet branch pipe section; the control pipeline further includes: a differential pressure transmitter and a second valve;

[0040] The water injection pipe section is connected to the first water inlet branch pipe section;

[0041] One end of the first water inlet branch pipe section is connected to the water outlet end of the water pump device and is provided with the first valve, one end of the second water inlet branch pipe section is connected to the first water inlet branch pipe section, the other end of the second water inlet branch pipe section is connected to the other end of the first water inlet branch pipe section through the pressure differential transmitter, and the second valve is provided on the second water inlet branch pipe section;

[0042] The differential pressure transmitter is used to detect the pressure difference between the first water inlet branch pipe section and the second water inlet branch pipe section, and send the pressure difference data to an interactive terminal associated with a user.

[0043] Optionally, it also includes:

[0044] A frame, the gantry, the clamping assembly, the valve port control assembly, the control pipeline, the water pump device, and the servo booster device are all arranged on the frame;

[0045] The universal wheel assembly comprises a plurality of groups, and the plurality of groups of the universal wheel assemblies are arranged at intervals at the bottom of the frame.

[0046] The valve detection device of the embodiment of the utility model comprises: a gantry, a clamping assembly, a valve port control assembly, a control pipeline, a water pump device, and a servo booster device; the clamping assembly is arranged on the lower crossbeam of the gantry, and is used to clamp and fix the valve to be tested; the valve port control assembly is arranged on the upper crossbeam of the gantry, and is used to close or open the outlet of the valve to be tested, and is used to discharge the gas in the valve cavity of the valve to be tested when the outlet of the valve to be tested is closed; the water outlet of the water pump device is connected to the inlet of the valve to be tested through the control pipeline, and the boosting port of the servo booster device is connected to the inlet of the valve to be tested through the control pipeline; the control pipeline is used to control the connection or disconnection between the water outlet of the water pump device and the inlet of the valve to be tested, and is also used to control the connection or disconnection between the boosting port of the servo booster device and the inlet of the valve to be tested. After clamping and connecting once, the whole detection process of the valve to be tested can be realized. By applying the embodiment of the utility model, high-efficiency detection of the valve to be tested can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limiting of the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0048] Figure 1 This is a schematic diagram of the structure of the valve detection device according to an embodiment of the utility model;

[0049] Figure 2a This is a schematic diagram of the structure of the gantry, valve port control assembly and clamping assembly in the embodiment of the utility model;

[0050] Figure 2b This is a structural schematic diagram of a valve port control assembly in an embodiment of the utility model;

[0051] Figure 3 This is a schematic diagram of the structure of the exhaust assembly in the embodiment of the utility model;

[0052] Figure 4 This is a schematic diagram of the structure of the frame in the embodiment of the utility model;

[0053] Figure 5a This is one of the structural schematic diagrams of the control pipeline in the embodiment of the utility model;

[0054] Figure 5b This is the second structural diagram of the control pipeline in the embodiment of the utility model;

[0055] Figure 6 This is a schematic diagram of the structure of the water pump device in the embodiment of the utility model;

[0056] Figure 7 This is a schematic diagram of the structure of the servo booster device in the embodiment of the utility model;

[0057] in:

[0058] 100, valve under test; 200, rack; 300, universal wheel assembly; 400, control console;

[0059] 1. Gantry; 11. Lower beam; 12. Upper beam; 13. Position sensor;

[0060] 2. Clamping assembly; 21. Slide rail; 22. Slide table; 23. Clamping piece; 24. Rodless cylinder;

[0061] 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. Inflatable pipe; 33. Connecting plate; 34. Linear sensor; 35. Guide rod;

[0062] 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. Pressurization pipe section; 44. Drainage pipe section; 45. Pressure transmitter; 46. Differential pressure transmitter;

[0063] 5. Water pump device; 51. Oil suction filter; 52. Oil return filter; 54. Liquid level gauge; 55. Water tank; 56. Water pump; 58. Water inlet tee; 59. Water outlet tee; 510. Check valve; 511. Sewage outlet;

[0064] 6. Servo booster; 61. Speed ​​reducer; 62. Servo motor; 63. Reciprocating mechanism; 65. Boosting plunger; 66. Boosting cylinder; 67. Boosting port;

[0065] 71, first valve; 72, second valve; 73, third valve; 74, fourth valve;

[0066] K7, inflation control valve; K5, valve. DETAILED DESCRIPTION

[0067] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0068] The terms "first", "second", etc. of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of one type, and the number of objects is not limited, for example, the first object can be one or more. In addition, "or" in the present application represents at least one of the connected objects. For example, "A or B" covers three schemes, namely, Scheme 1: including A but not including B; Scheme 2: including B but not including A; Scheme 3: including both A and B. The character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0069] In the technical solution of the present disclosure, words such as “connect”, “couple” or “connected” are not limited to physical or mechanical connections, but may include electrical connections.

[0070] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0071] At present, valve testing adopts the method of manual clamping and testing, and the process requires cumbersome equipment disassembly and assembly. For example, after the valve cavity of the valve to be tested is injected with water, the water injection pipeline needs to be removed, and the boosting pipeline needs to be connected to the valve to be tested. After the boosting pipeline is connected, the pressure is increased and maintained. After the subsequent test is completed, the boosting pipeline needs to be removed again, and the water injection pipeline needs to be connected to discharge the accumulated water in the valve cavity. The operation is cumbersome and the detection efficiency is low.

[0072] The utility model embodiment provides a valve detection device, see Figure 1 As shown, the valve detection device includes: a gantry 1, a clamping assembly 2, a valve port control assembly 3, a control pipeline 4, a water pump device 5, and a servo booster device 6;

[0073] The clamping assembly 2 is disposed on the lower crossbeam 11 of the gantry 1 and is used to clamp and fix the valve 100 to be tested;

[0074] The valve port control assembly 3 is disposed on the upper crossbeam 12 of the gantry 1, and is used to close or open the outlet of the tested valve 100, and to discharge the gas in the valve cavity of the tested valve 100 when the outlet of the tested valve 100 is closed;

[0075] The water outlet of the water pump device 5 is connected to the inlet of the tested valve 100 through the control pipeline 4, and the boost port of the servo boost device 6 is connected to the inlet of the tested valve 100 through the control pipeline 4;

[0076] The control pipeline 4 is used to control the connection or disconnection between the water outlet of the water pump device 5 and the inlet of the tested valve 100 , and is also used to control the connection or disconnection between the boosting port of the servo boosting device 6 and the inlet of the tested valve 100 .

[0077] It should be noted that the tested valve 100 includes a valve cavity, and the inlet of the tested valve 100 and the outlet of the tested valve 100 are respectively connected to the valve cavity of the tested valve 100 .

[0078] Specifically, when the tested valve 100 needs to be tested, the user can clamp and fix the tested valve 100 with the clamping assembly 2, close the outlet of the tested valve 100 with the valve port control assembly 3, and then use the control pipeline 4 to control the water pump device 5 (operate the water pump device 5 to start filling water) to fill the valve cavity of the tested valve 100 with water from the inlet of the tested valve 100. As the water flows from bottom to top into the valve cavity of the tested valve 100, the gas in the valve cavity is squeezed 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, and the control pipeline 4 is used to control the water outlet of the water pump device 5 to be disconnected from the inlet of the tested valve 100, and the water pump device 5 is shut down to stop filling water.

[0079] Thereafter, the servo booster 6 is started, and the boost port of the servo booster 6 is connected to the inlet of the tested valve 100 through the control line 4, and the servo booster 6 boosts the water in the valve cavity to a preset pressure value. The connection between the boost port of the servo booster 6 and the inlet of the tested valve 100 is cut off through the control line 4 to achieve valve cavity pressure maintenance. When the pressure is maintained for a preset time, it is detected whether the pressure reduction value in the valve cavity exceeds the preset standard threshold. If it exceeds, the tested valve 100 can be judged as unqualified.

[0080] If it does not exceed the limit, the connection between the boosting port of the servo boosting device 6 and the inlet of the tested valve 100 is connected through the control pipeline 4, and the servo boosting device 6 is used to relieve the pressure of the valve cavity, and then a secondary boosting is performed (i.e., the servo boosting device 6 is started, and the boosting port of the servo boosting device 6 is connected to the inlet of the tested valve 100 through the control pipeline 4, and the servo boosting device 6 boosts the water in the valve cavity to a preset pressure value), and the boosting port of the servo boosting device 6 and the inlet of the tested valve 100 are shut off through the control pipeline 4 to achieve valve cavity pressure maintenance. When the pressure is maintained for a preset time, it is detected whether the pressure reduction value in the valve cavity exceeds the preset standard threshold value. If it does not exceed, the tested valve 100 can be determined to be qualified.

[0081] After the test is completed, the servo booster device 6 is used to relieve the pressure in the valve cavity. After that, the valve port control component 3 is used to open the outlet of the tested valve 100, and the control pipeline 4 is used to control the connection between the water outlet end of the water pump device 5 and the inlet of the tested valve 100. The water pump device 5 is operated to start pumping water, and the accumulated water in the valve cavity is returned to the water pump device 5 under the action of gravity and the suction force of the water pump device.

[0082] It should be noted that, in some embodiments, the valve 100 under test includes a pressure gauge for measuring the pressure in the valve cavity. The user can read the pressure gauge to determine whether the servo booster 6 boosts the water in the valve cavity to a preset pressure value, and to determine whether the pressure reduction value in the valve cavity exceeds a preset standard threshold. In practical applications, the preset duration (i.e., the pressure holding time), the preset pressure value, and the preset standard threshold are test process parameters specifically determined according to the actual model and specifications of the valve 100 under test, and cannot be exhaustively listed. The inability to be exhaustively listed should not be considered unclear.

[0083] In the embodiment of the utility model, the servo booster device 6 can be used to achieve high-precision boosting of the valve under test, thereby improving the accuracy of the test result.

[0084] The valve detection device of the embodiment of the utility model comprises: a gantry, a clamping assembly, a valve port control assembly, a control pipeline, a water pump device, and a servo booster device; the clamping assembly is arranged on the lower crossbeam of the gantry, and is used to clamp and fix the valve to be tested; the valve port control assembly is arranged on the upper crossbeam of the gantry, and is used to close or open the outlet of the valve to be tested, and is used to discharge the gas in the valve cavity of the valve to be tested when the outlet of the valve to be tested is closed; the water outlet of the water pump device is connected to the inlet of the valve to be tested through the control pipeline, and the boosting port of the servo booster device is connected to the inlet of the valve to be tested through the control pipeline; the control pipeline is used to control the connection or disconnection between the water outlet of the water pump device and the inlet of the valve to be tested, and is also used to control the connection or disconnection between the boosting port of the servo booster device and the inlet of the valve to be tested. After clamping and connecting once, the whole detection process of the valve to be tested can be realized. By applying the embodiment of the utility model, high-efficiency detection of the valve to be tested can be realized.

[0085] In some embodiments of the present invention, optionally, see Figure 2a As shown, the clamping assembly 2 includes: a slide rail 21, a slide table 22, and a clamping member 23;

[0086] The slide rail 21 is fixedly disposed on the lower cross beam 11, and the length direction of the slide rail 21 is perpendicular to the length direction of the lower cross beam 11;

[0087] The slide 22 is disposed on the slide rail 21 and can slide along the length direction of the slide rail 21;

[0088] The clamping member 23 is disposed on the slide 22 and is used to clamp and fix the valve 100 to be tested on the slide 22 .

[0089] In actual application, when clamping and fixing the valve 100 to be tested, the slide 22 is first pushed outward to facilitate the clamping assembly 2 to clamp and fix the valve 100 to be tested. After the clamping and fixing is completed, the slide 22 is pushed inward to move until the outlet of the valve 100 to be tested is opposite to the valve port control assembly 3, so that the valve port control assembly 3 can close or open the outlet of the valve 100 to be tested, and is used to discharge the gas in the valve cavity of the valve 100 to be tested when the outlet of the valve 100 to be tested is closed.

[0090] In some embodiments of the present invention, optionally, see Figure 2a and Figure 2b As shown, the valve control assembly 3 includes: a hydraulic cylinder 31 and an exhaust assembly 32;

[0091] 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 and telescopic manner along the length direction of the cylinder body, wherein the first end of the telescopic arm can extend from the cylinder body to the bottom of the upper cross beam 12;

[0092] The first end is provided with a connection plate 33 for sealingly connecting with the outlet of the tested valve 100; the connection plate 33 is connected with the outlet of the tested valve 100, and the outlet of the tested valve 100 is closed; the connection plate 33 is separated from the outlet of the tested valve 100, and the outlet of the tested valve 100 is opened;

[0093] The exhaust assembly 32 is disposed on the connection disk 33 and can be connected to the opening of the valve 100 to be tested through the connection disk 33 .

[0094] It should be noted that, in some embodiments, in order to ensure that the test results of the tested valve 100 are highly accurate, a sealing rubber ring is provided on the connection disk 33, and when the connection disk 33 is connected to the outlet of the tested valve 100, the connection is sealed to avoid the problem of inaccurate test results caused by the release of pressure from the connection during the test. In addition, an exhaust component 32 is provided on the connection disk 33, which can enable the valve port control component 3 to exhaust the gas in the valve cavity of the tested valve 100 when the outlet of the tested valve 100 is closed. The above-mentioned setting has a simple structure and high reliability.

[0095] In some embodiments of the present invention, optionally, see Figure 2aAs shown, the valve control assembly 3 also includes: a linear sensor 34 and a guide rod 35. Among them, the linear sensor 34 is electrically connected to the connecting plate 33, and can detect the extension distance of the telescopic arm on the hydraulic cylinder 31. One end of the guide rod 35 passes through the small hole of the upper crossbeam 12 and is fixed on the connecting plate 33. A side column of the gantry 1 close to the guide rod 35 has two position sensors 13 arranged one above and one below, and the position sensor 13 is used to detect the position of the end of the guide rod 35 fixed to the connecting plate 33, and generate a position signal to send to the interactive end. It can be understood that the position signal also represents the downward extension distance of the telescopic arm of the hydraulic cylinder 31. In actual applications, the position sensor 13 located on the lower side of the two position sensors 13 is used to calibrate the safe downward extension distance of the telescopic arm of the hydraulic cylinder 31.

[0096] In some embodiments of the present invention, optionally, see Figure 2b and Figure 3 As shown, the exhaust assembly 32 includes: an air pipe 321, an exhaust tank 322, a pneumatic valve 323, a pressure sensor 324 and an exhaust valve 325;

[0097] The inlet end of the air pipe 321 is connected to the bottom outlet of the exhaust tank 322, and the pneumatic valve 323 is arranged on the air pipe 321 to control the connection or disconnection between the inlet end of the air pipe 321 and the outlet end of the air pipe 321;

[0098] The bottom inlet 322a of the exhaust tank 322 is connected to the connection plate 33 through a pipeline, and is connected to the outlet of the tested valve 100 through the connection plate 33. A valve K5 is provided on the pipeline, and the valve K5 is used to control the connection or disconnection between the bottom inlet 322a of the exhaust tank 322 and the connection plate 33;

[0099] The pressure sensor 324 is disposed at the top of the exhaust tank 322 , and is used to obtain the pressure signal in the exhaust tank 322 and send the pressure signal to an interactive terminal associated with the user; the exhaust valve 325 is disposed at the top outlet of the exhaust tank 322 .

[0100] 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 interactive end, so that the user can judge the test process.

[0101] When testing the valve 100 to be tested, the pneumatic valve 323 is closed, the valve K5 is opened, and the valve cavity of the valve 100 to be tested is filled with water. Part of the water and the gas squeezed out by the water enter the exhaust tank 322 through the outlet of the valve 100 to be tested, the connecting plate 33, the pipeline, and the bottom inlet 322a of the exhaust tank 322. In this process, the gas entering the exhaust tank 322 is discharged through the exhaust valve 325 provided 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 determines that the exhaust tank 322 is full of water according to the pressure signal, or enters the test stage where the water in the valve cavity needs to be pressurized, the user can control the valve K5 to close, stop the water from flowing into the exhaust tank 322, and control the pneumatic valve 323 to open, and discharge the water accumulated in the exhaust tank 322 through the air pipe 321.

[0102] In some embodiments of the present invention, optionally, see Figure 2b As shown, the exhaust assembly 32 further includes: an air charging pipe 326 and an air charging control valve K7 disposed on the air charging pipe 326;

[0103] One end of the air-filling pipe 326 is connected to the connection plate 33 and is connected to the outlet of the valve 100 to be tested through the connection plate 33; the other end of the air-filling pipe 326 is connected to the air source;

[0104] The inflation control valve K7 is used to control the connection or disconnection between the air source and the outlet of the valve 100 under test.

[0105] In actual application, when the test is completed or the tested valve 100 is determined to be unqualified during the pressure holding test phase and the water in the valve cavity needs to be drained, the servo booster device 6 is controlled to reverse to reduce the pressure in the valve cavity. When the pressure in the valve cavity is reduced to a safe pressure value, the fourth valve 74 on the drainage 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 tested valve 100 through the inflation pipe 326, the connecting plate 33, and the outlet of the tested valve 100, accelerating the discharge of residual water in the valve cavity (the discharge channel is the valve cavity, the water injection pipe section 42, and the drainage pipe section 44).

[0106] In some embodiments of the present invention, optionally, see Figure 2a As shown, the clamping members 23 have at least two groups arranged at intervals. Figure 2a As shown, the clamping members 23 have two groups that are arranged opposite to each other. The clamping force of the two groups of clamping members 23 is uniform, and the valve 100 to be tested can be firmly clamped on the slide 22 .

[0107] In some embodiments of the present invention, optionally, see Figure 4As shown, the clamping assembly 2 further includes: a rodless cylinder 24, which is used to drive the slide 22 to slide along the length direction of the slide rail 21. In the embodiment of the utility model, the slide 22 is driven by the rodless cylinder 24, which can avoid the problem of inaccurate displacement of the tested valve 100 when the tested valve 100 is manually pushed, and avoid the problem of consuming a lot of time when adjusting the relative position of the tested valve 100 and the valve port control assembly 3, thereby improving the test efficiency.

[0108] In some embodiments of the present invention, optionally, see Figure 5a and Figure 5b As shown, the control pipeline 4 includes: a water inlet pipe section 41, a water injection pipe section 42, a pressurization pipe section 43, and a drainage pipe section 44;

[0109] The water inlet pipe section 41 is connected to the water outlet end of the water pump device 5 and a first valve 71 is provided between the two. The first valve 71 is used to control the connection or disconnection between the water inlet pipe section 41 and the water outlet end of the water pump device 5.

[0110] One end of the water injection pipe section 42 is connected to the inlet of the tested valve 100, and the other end is connected to the water inlet pipe section 41;

[0111] One end of the boosting pipe section 43 is connected to the boosting port, and the other end is connected to the water injection pipe section 42. The boosting pipe section 43 is provided with a third valve 73, which is used to control the connection or disconnection between the boosting port and the water injection pipe section 42;

[0112] One end of the drainage pipe section 44 is connected to the water injection pipe section 42, and the other end is connected to the return water end of the water pump device 5. A fourth valve 74 is provided on the drainage pipe section 44, and the fourth valve 74 is used to control the connection or disconnection between the water injection pipe section 42 and the return water end of the water pump device 5.

[0113] The following combination Figure 2b The valve port control assembly 3 of the embodiment of the utility model is shown to illustrate the working principle of the control pipeline 4.

[0114] It should be noted that when water is injected into the valve cavity of the tested valve 100, the first valve 71, the third valve 73 and the valve K5 are opened, and the other valves are closed. The water pumped by the water pump device 5 enters the valve cavity of the tested valve 100 through the water inlet pipe section 41, the water injection pipe section 42 and the inlet of the tested valve 100.

[0115] When the gas in the valve cavity of the tested valve 100 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 tested valve 100 is pressurized, the servo booster 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 open. The passage from the boosting port, the boosting pipe section 43 to the water injection pipe section 42 is connected, and the servo booster 6 boosts the valve cavity of the tested valve 100. After the test is completed and the accumulated water in the valve cavity needs to be drained, the servo booster device 6 is controlled to reverse to reduce the pressure in the valve cavity. When the pressure in the valve cavity is reduced to a safe pressure value, the fourth valve 74 on the drainage pipe section 44 is opened, and the inflation control valve K7 is opened, so that the compressed gas from the air source enters the valve cavity of the tested valve 100 through the inflation pipe 326, the connecting plate 33, and the outlet of the tested valve 100, thereby accelerating the discharge of residual water in the valve cavity (the discharge channel is the valve cavity, the water injection pipe section 42, the drainage pipe section 44, and the water pump device 5).

[0116] See also Figure 6 As shown, a water pump device 5 of an embodiment of the utility model is illustrated, wherein the water pump device 5 includes a water tank 55, an oil suction filter 51, an oil return filter 52, a liquid level meter 54, a water inlet tee 58, a water outlet tee 59, a one-way valve 510, and a water pump 56.

[0117] When the water pump device 5 injects water into the valve 100 to be tested, the water inlet tee 58 and the water outlet tee 59 are in the water filling working position, and the water pump 56 absorbs water in the water tank 55 through the pipeline through the oil suction filter 51, and enters the control pipeline 4 through one end of the water outlet tee 59 (i.e., equivalent to the water outlet end of the water pump device 5 in the embodiment of the utility model), so as to inject water into the valve 100 to be tested. When the test of the valve 100 to be tested is completed and the water is drained, one port of the control pipeline 4 (the other end of the drainage pipe section 44 is connected to the return water end of the water pump device 5) is connected to the return oil filter 52 (i.e., equivalent to the return water end of the water pump device 5 in the embodiment of the utility model, and the return oil filter 52 is arranged between the return water end and the water tank 55), and the water is recovered into the water tank 55.

[0118] When cleaning the water tank, the water inlet and outlet tee is switched to the drainage working position, and the water pump 56 directly draws water into the water tank 55 through the pipeline, and directly discharges the deteriorated water into the wastewater tank through the sewage port of the water outlet tee 59. The precipitated impurities in the water tank 55 can be discharged through the sewage outlet 511 at the bottom of the water tank 55.

[0119] See also Figure 7As shown, a servo booster device 6 of an embodiment of the utility model is illustrated, wherein the servo booster device 6 comprises: a booster device frame 64; and also comprises a reducer 61, a servo motor 62, a reciprocating mechanism 63, a booster plunger 65, a booster cylinder 66 and a booster port 67 (in actual application, one end of the booster pipe section 43 is connected to the booster port 67) arranged on the booster device frame 64. The power output end of the servo motor 62 is connected to the reducer 61 in a transmission manner, and the power of the servo motor 62 is transmitted and decelerated by the reducer 61 and then output to the reciprocating mechanism 63, and the reciprocating mechanism 63 drives the booster plunger 65 to move toward the booster cylinder 66, and the water in the booster cylinder 66 (when boosting, the path from the booster port 67 and the booster pipe section 43 to the water injection pipe section 42 is connected) is squeezed, thereby increasing the water pressure in the valve cavity of the tested valve 100, thereby achieving boosting.

[0120] In some embodiments of the present invention, optionally, see Figure 5a and Figure 5b As shown, the control pipeline 4 also includes: a pressure transmitter 45 and a controller;

[0121] The pressure transmitter 45 is provided in the water injection pipe section 42, and is used to detect the pressure in the valve cavity of the tested valve 100 and send the pressure signal to the controller;

[0122] The controller includes:

[0123] The first control interface is used to receive the pressure signal and forward the pressure signal to the interaction terminal associated with the user.

[0124] A pressure transmitter is a sensor device that measures the pressure in a liquid or gas and converts the pressure signal into an electrical signal output. This device is often used in industrial automation systems to monitor pressure changes in pipes, containers, or equipment. The working principle of a pressure transmitter is to sense the pressure acting on its sensor element, causing it to generate a corresponding electrical signal output. These electrical signals can be analog signals (such as 4-20mA current signals or 0-10V voltage signals) or digital signals (such as MODBUS communication protocol). Pressure transmitters usually have high accuracy, stability, and reliability, and can operate for a long time in harsh working environments. They are widely used in various fields such as industrial manufacturing, chemical industry, oil and gas, medical equipment, etc., to monitor and control pressure parameters in the system.

[0125] It can be understood that the pressure transmitter 45 is arranged on the water injection pipe section 42, and can directly detect the pressure of the water injection pipe section 42, and the water injection pipe section 42 is connected to the valve cavity of the valve 100 under test. Therefore, the pressure of the water injection pipe section 42 detected by the pressure transmitter 45 is also the pressure in the valve cavity of the valve 100 under test, and the pressure signal represents the pressure in the valve cavity of the valve 100 under test.

[0126] By setting up the pressure transmitter 45 and the controller, the user can timely know the pressure value on each valve by interpreting the pressure signal, so as to achieve accurate judgment of the detection process.

[0127] In some embodiments of the present invention, optionally, the controller further includes:

[0128] A second control interface, used to receive a first valve opening signal or a 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;

[0129] A third control interface, used 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;

[0130] The fourth control interface is used 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 .

[0131] Through the controller, users can control the detection process through the interactive terminal, avoid the safety risks of manually operating the valve to control the detection process, and achieve safe detection.

[0132] In some embodiments of the present invention, optionally, see Figure 4 As shown, see Figure 5a and Figure 5b As shown, 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 control pipeline 4 also includes: a differential pressure transmitter 46 and a second valve 72;

[0133] The water injection pipe section 42 is connected to the first water inlet branch pipe section 41a;

[0134] One end of the first water inlet branch pipe section 41a is connected to 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 connected to the first water inlet branch pipe section 41a, the other end of the second water inlet branch pipe section 41b is connected to the other end of the first water inlet branch pipe section 41a through the pressure differential transmitter 46, and the second valve 72 is provided on the second water inlet branch pipe section 41b;

[0135] The differential pressure transmitter 46 is used to detect the differential pressure between the first water inlet branch pipe section 41a and the second water inlet branch pipe section 41b, and send the differential pressure data to the interactive end.

[0136] It should be noted that when the valve cavity of the tested valve 100 is filled with water, the first valve 71 is closed, the third valve 73 and the fourth valve 74 are opened, the servo booster 6 is started, the boost port, the boost pipe section 43 and the water injection pipe section 42 are connected, and the servo booster 6 boosts the valve cavity of the tested valve 100. When the valve cavity of the tested valve 100 is pressurized and a pressure holding test is required, the third valve 73 is closed, and the second valve 72 is closed, so that the pressure of a section of the pipe from the second valve 72 to the pressure differential transmitter 46 on the second water inlet branch section 41b will be maintained at the pressure after the boost. Thereafter, a pressure holding test is performed. Since the water injection pipe section 42 is connected to the first water inlet branch section 41a, if there is a leak in the valve cavity of the tested valve 100, the pressure in the first water inlet branch section 41a decreases, and the pressure difference between the first water inlet branch section 41a and the second water inlet branch section 41b detected by the pressure differential transmitter 46 increases. Therefore, the user can use the pressure difference signal sent by the pressure difference transmitter 46 to determine the pressure holding test result of the valve cavity of the tested valve 100.

[0137] In actual applications, during the test phase of maintaining pressure in the valve cavity of the tested valve 100, the second valve 72 is closed, and the user observes the pressure difference signal through the interactive end. When the pressure is maintained for a preset time, the pressure difference between the first water inlet branch section 41a and the second water inlet branch section 41b exceeds the preset standard threshold value, and the tested valve 100 can be judged to be unqualified.

[0138] When the pressure is maintained for a preset time, the pressure difference between the first water inlet branch section 41a and the second water inlet branch section 41b does not exceed the preset standard threshold value, the connection between the boosting port of the servo booster 6 and the inlet of the tested valve 100 is connected through the control line 4, and the servo booster 6 is used to relieve the pressure of the valve cavity, and then a secondary boost is performed (that is, the servo booster 6 is started, and the boosting port of the servo booster 6 is connected to the inlet of the tested valve 100 through the control line 4, and the servo booster 6 boosts the water in the valve cavity to a preset pressure value), and the boosting port of the servo booster 6 and the inlet of the tested valve 100 are shut off through the control line 4 to achieve valve cavity pressure maintenance. When the pressure is maintained for a preset time, the pressure difference between the first water inlet branch section 41a and the second water inlet branch section 41b does not exceed the preset standard threshold value, and the tested valve 100 can be judged to be qualified.

[0139] In some embodiments of the present invention, optionally, see Figure 4 As shown, the valve detection device also includes:

[0140] The frame 200, the gantry 1, the clamping assembly 2, the valve control assembly 3, the control pipeline 4, the water pump device 5, and the servo booster device 6 are all arranged on the frame 200;

[0141] The universal wheel assembly 300 includes a plurality of sets, and the plurality of sets of universal wheel assemblies 300 are arranged at intervals at the bottom of the frame 200 .

[0142] By providing the rack 200 , the integrated arrangement of various devices can be achieved. Further, by providing a plurality of sets of universal wheel assemblies 300 at the bottom of the rack 200 , convenient transportation and deployment of the detection device of the utility model can be achieved.

[0143] In some embodiments of the present invention, optionally, a control console 400 is further provided on the rack 200, and the control console 400 includes the controller and the interaction terminal in the embodiments of the present invention.

[0144] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, all of which are within the protection of the utility model.

Claims

1. A valve detection device, characterized in that: include: Gantry, clamping assembly, valve control assembly, control pipeline, water pump device, and servo booster device; The clamping assembly is arranged on the lower crossbeam of the gantry and is used to clamp and fix the valve to be tested; The valve port control assembly is arranged on the upper crossbeam of the gantry, and is used to close or open the outlet of the tested valve, and is used to discharge the gas in the valve cavity of the tested valve when the outlet of the tested valve is closed; The water outlet of the water pump device is connected to the inlet of the tested valve through the control pipeline, and the boost port of the servo booster device is connected to the inlet of the tested valve through the control pipeline; The control pipeline is used to control the connection or disconnection between the water outlet of the water pump device and the inlet of the tested valve, and is also used to control the connection or disconnection between the boost port of the servo boost device and the inlet of the tested valve.

2. The valve detection device according to claim 1, characterized in that: The clamping assembly includes: a slide rail, a slide table, and a clamping member; The slide rail is fixedly arranged on the lower cross beam, and the length direction of the slide rail is perpendicular to the length direction of the lower cross beam; The slide table is arranged on the slide rail and can slide along the length direction of the slide rail; The clamping member is arranged on the slide platform and is used for clamping and fixing the valve to be tested on the slide platform.

3. The valve detection device according to claim 2, characterized in that: The valve port control assembly includes: a hydraulic cylinder and an exhaust assembly; The cylinder body of the hydraulic oil cylinder is arranged on the upper cross beam, and the telescopic arm of the hydraulic oil cylinder is arranged in the cylinder body in a sliding and telescopic manner along the length direction of the cylinder body, wherein the first end of the telescopic arm can extend from the cylinder body to the bottom of the upper cross beam; The first end is provided with a connection disk for sealingly connecting with the outlet of the tested valve; when the connection disk is connected with the outlet of the tested valve, the outlet of the tested valve is closed; when the connection disk is separated from the outlet of the tested valve, the outlet of the tested valve is opened; The exhaust assembly is arranged on the connection disk and can be connected to the opening of the valve to be tested through the connection disk.

4. The valve detection device according to claim 3, characterized in that: The exhaust assembly includes: an air pipe, an exhaust tank, a pneumatic valve, a pressure sensor and an exhaust valve; The inlet end of the air pipe is connected to the bottom outlet of the exhaust tank, and the pneumatic valve is arranged on the air pipe to control the connection 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 connected to the connection disk through a pipeline, and is connected to the outlet of the valve to be tested through the connection disk; a valve is provided on the pipeline, and the valve is used to control the connection or disconnection between the bottom inlet of the exhaust tank and the connection disk; The pressure sensor is arranged at the top of the exhaust tank, and is used to obtain the pressure signal in the exhaust tank and send the pressure signal to an interactive terminal associated with a user; the exhaust valve is arranged at the top outlet of the exhaust tank.

5. The valve detection device according to claim 2, characterized in that: The clamping members include at least two groups which are spaced apart from each other.

6. The valve detection device according to claim 2, characterized in that: The clamping assembly also includes: a rodless cylinder, which is used to drive the slide to slide along the length direction of the slide rail.

7. The valve detection device according to claim 1, characterized in that: The control pipeline includes: a water inlet pipe section, a water injection pipe section, a pressure boosting pipe section, and a drainage pipe section; The water inlet pipe section is connected to the water outlet end of the water pump device, and a first valve is provided between the two, and the first valve is used to control the connection or 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 connected to the inlet of the tested valve, and the other end is connected to the water inlet pipe section; One end of the boosting pipe section is connected to the boosting port, and the other end is connected to the water injection pipe section. A third valve is provided on the boosting pipe section, and the third valve is used to control the connection or disconnection between the boosting port and the water injection pipe section; One end of the drainage pipe section is connected to the water injection pipe section, and the other end is connected to the return water end of the water pump device. A fourth valve is provided on the drainage pipe section, and the fourth valve is used to control the connection or disconnection between the water injection pipe section and the return water end of the water pump device.

8. The valve detection device according to claim 7, characterized in that: The control pipeline also includes: a pressure transmitter and a controller; The pressure transmitter is arranged in the water injection pipe section, and is used to detect the pressure in the valve cavity of the tested valve and send the pressure signal to the controller; The controller comprises: The first control interface is used to receive the pressure signal and forward the pressure signal to an interaction terminal associated with the user.

9. The valve detection device according to claim 8, characterized in that: The controller further comprises: a second control interface, configured to receive a first valve opening signal or a 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; A third control interface, 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; The fourth control interface is used 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.

10. The valve detection device according to claim 7, characterized in that: The water inlet pipe section includes a first water inlet branch pipe section and a second water inlet branch pipe section; the control pipeline also includes: a differential pressure transmitter and a second valve; The water injection pipe section is connected to the first water inlet branch pipe section; One end of the first water inlet branch pipe section is connected to the water outlet end of the water pump device and is provided with the first valve, one end of the second water inlet branch pipe section is connected to the first water inlet branch pipe section, the other end of the second water inlet branch pipe section is connected to the other end of the first water inlet branch pipe section through the pressure differential transmitter, and the second valve is provided on the second water inlet branch pipe section; The differential pressure transmitter is used to detect the pressure difference between the first water inlet branch pipe section and the second water inlet branch pipe section, and send the pressure difference data to an interactive terminal associated with a user.

11. The valve detection device according to any one of claims 1 to 10, characterized in that: Also includes: A frame, the gantry, the clamping assembly, the valve port control assembly, the control pipeline, the water pump device, and the servo booster device are all arranged on the frame; The universal wheel assembly comprises a plurality of groups, and the plurality of groups of the universal wheel assemblies are arranged at intervals at the bottom of the frame.

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