A tool for valve inspection

Abstract

The application relates to the aerospace technical field, in particular to a tool for valve inspection, which comprises a fixing platform, an adapter device and a locking bolt. The fixing platform comprises a fixing leg and a fixing flat plate, the fixing leg is fixed to the back of the fixing flat plate, the fixing flat plate is provided with a through hole and a plurality of long connecting grooves, and the long connecting grooves are located around the through hole. The adapter device comprises an adapter disc, a pipe nozzle and a plurality of clamps. The adapter disc is provided with a gas through hole and a plurality of connecting holes, the connecting holes are located around the gas through hole, the locking bolt passes through the long connecting grooves and the connecting holes, so that the fixing flat plate and the adapter disc are fixedly connected. One end of the pipe nozzle is fixed to the back of the adapter disc and communicates with the gas through hole, and the other end of the pipe nozzle is used for communicating with a fluid pipeline. The lower end of the clamp is connected to the edge of the adapter disc, the upper end of the clamp is inwardly bent, and the clamp is used for clamping a valve flange. The application can be applied to a larger range of valve interfaces and has more functions.

Description

Technical Field

[0001] This application relates to the field of aerospace technology, and more particularly to a tooling for valve inspection. Background Technology

[0002] Existing valve testing fixtures (publication number: CN216846725U), such as Figure 1 As shown, a sealing mechanism 2 and a pressing mechanism 3 are provided on the fixed plate 1. The sealing mechanism 2 includes a push rod 22 that is movably mounted on the fixed plate 1. The bottom end of the push rod 22 is provided with a sealing plug 21 that seals the valve opening. The top end of the push rod 22 is provided with a pressure plate 25. A spring 23 is fitted on the part of the push rod 22 that is higher than the fixed plate 1. The support frame 24 is a cylindrical structure with a clearance groove on its side corresponding to the push rod 22. The pressing mechanism 3 includes a vertical shaft 32 and a connecting arm 35. The vertical shaft 32 is fixed on the fixed plate 1. The proximal end of the connecting arm 35 is rotatably connected to the vertical shaft 32. The distal end of the connecting arm 35 is vertically threaded with a pressing element 36. The connecting arm 35 has a limiting structure that limits its pressing operation position. The sealing plug 21 of the sealing mechanism 2 can quickly move down to the valve opening position. At this time, the clamping member 36 presses down on the sealing mechanism 2 to achieve rapid sealing of the valve opening by the sealing plug 21. Since the clamping member 36 and the connecting arm 35 are threadedly connected, the downward pressure on the sealing mechanism 2 can be adjusted in time to ensure the sealing effect of the sealing plug 21 on the valve opening.

[0003] However, the tooling used for valve testing has a limited function, only able to quickly seal the valve opening via the sealing plug 21. Furthermore, the sealing plug 21 is a rubber frustum shape, applicable to valve interfaces within the range of the frustum's upper and lower diameters, thus limiting the range of applicable valve interfaces for this tooling.

[0004] Therefore, how to make the tooling used for valve inspection applicable to a wide range of valve interfaces, and how to make the tooling used for valve inspection have multiple functions, are technical problems that urgently need to be solved by those skilled in the art. Utility Model Content

[0005] This application provides a tooling for valve inspection, which enables quick installation, fixation and sealing of the valve interface during inspection through an adapter. By adjusting the model, position, height and other parameters of the adapter, it can be applied to a wide range of valve interfaces.

[0006] To solve the above-mentioned technical problems, this application provides the following technical solution:

[0007] A tooling for valve inspection includes: a fixed platform, an adapter, and anti-loosening bolts; the fixed platform includes: fixed legs and a fixed plate, the upper end of the fixed legs being fixedly connected to the back of the fixed plate, the fixed plate having an inlet hole extending from the front to the back and multiple long connecting grooves, the long connecting grooves being located around the inlet hole and on the radius of a circle concentric with the center of the inlet hole; the adapter includes: an adapter plate, a connecting nozzle, and multiple clamps; the adapter plate has gas through holes extending to both sides and multiple connecting holes, the connecting holes being located around the gas through holes and on the radius of a circle concentric with the center of the gas through holes, the anti-loosening bolts passing through the long connecting grooves and connecting holes to fix the fixed plate and the adapter plate; one end of the connecting nozzle is fixed to the back of the adapter plate and communicates with the gas through hole, the other end of the connecting nozzle is used to communicate with a fluid pipeline; the lower ends of all clamps are connected to the edge of the adapter plate, and the upper end of each clamp is bent inward for clamping valve flanges.

[0008] In the tooling for valve inspection described above, preferably, the long connecting grooves around the inlet hole are evenly distributed, and the connecting holes around the gas inlet hole are evenly distributed on the same circumference.

[0009] The tooling for valve inspection described above preferably includes, in part, a mounting plate; the mounting plate is fixedly connected to the middle / lower section of the fixed support leg.

[0010] The tooling for valve inspection described above preferably has an adapter plate with multiple inwardly recessed caliper mounting slots extending through both sides, the lower end of each caliper being connected to the adapter plate, and a connection hole located on the portion of the adapter plate between two caliper mounting slots.

[0011] The tooling for valve inspection described above preferably includes a retractable caliper, the lower end of which is detachably connected to the edge of the adapter plate.

[0012] The tooling for valve inspection described above preferably includes, as an example, a sealing gasket positioned on the front of the adapter plate and located within the space enclosed by all the calipers.

[0013] The tooling for valve inspection described above preferably further includes a media filtering module, which is mounted on a fixed platform and is used to communicate with a fluid pipeline located upstream of the valve.

[0014] The tooling for valve inspection described above preferably further includes a medium release module, which is mounted on a fixed platform and is used to communicate with a fluid pipeline located downstream of the valve.

[0015] The tooling for valve inspection described above preferably further includes an upstream pressure detection module and a downstream pressure detection module; both the upstream and downstream pressure detection modules are mounted on a fixed platform, and the upstream pressure detection module is used to communicate with the fluid pipeline between the media filter and the valve, while the downstream pressure detection module is used to communicate with the fluid pipeline between the valve and the media release module.

[0016] The tooling for valve inspection described above preferably further includes: an upstream flow detection module and a downstream flow detection module; both the upstream flow detection module and the downstream flow detection module are installed on a fixed platform, and the upstream flow detection module is used to connect with the fluid pipeline between the upstream pressure detection module and the valve, while the downstream flow detection module is used to connect with the fluid pipeline between the valve and the downstream pressure detection module.

[0017] Compared to the aforementioned background technology, this application, by adjusting the model, quantity, position, height, and other parameters of the adapter device on the fixed platform, can seal and stably fix valves of different models and quantities, reducing the risk of vibration / displacement during valve testing, thus making it applicable to a wider range of valve interfaces. Furthermore, this application adopts a modular approach, allowing for the addition or removal of required testing modules as needed. For high-precision testing requirements, high-precision testing modules can be replaced, ensuring the accuracy and reliability of the test results and meeting the high-performance requirements of rocket valves. In addition, this application, through media filtration modules, pressure detection modules, and flow detection modules, can achieve functions such as media impurity removal, real-time pressure monitoring, and real-time flow monitoring, achieving a multi-functional purpose for valve testing. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of existing valve testing fixtures;

[0020] Figure 2 This is a schematic diagram of the tooling for valve inspection provided in an embodiment of this application;

[0021] Figure 3 This is a schematic diagram of the structure of the fixing platform of the tooling for valve inspection provided in the embodiments of this application;

[0022] Figure 4This is a front view of the adapter device for the tooling used for valve inspection provided in the embodiments of this application;

[0023] Figure 5 This is a top view of the adapter device for valve inspection tooling provided in the embodiments of this application;

[0024] Figure 6 This is a schematic diagram of a tooling module for valve inspection provided in an embodiment of this application. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. Furthermore, spatial relationship terms such as "upper," "lower," "front," "rear," "left," and "right" are used for convenience in explaining the positional relationship between two components. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] like Figure 2 As shown, this application provides a tooling for valve inspection, including: a fixed platform 210, an adapter 220, and anti-loosening bolts (not shown in the figure).

[0027] Among them, such as Figure 3 As shown, the fixed platform 210 includes: a fixed support leg 211 and a fixed plate 212; the upper end of the fixed support leg 211 is fixedly connected to the back of the fixed plate 212, and the lower end of the fixed support leg 211 is used to support the ground; the fixed plate 212 has an inlet hole 2121 extending from the front to the back for a fluid pipe connected to the adapter 220 to pass through; the fixed plate 212 also has multiple long connecting grooves 2122 extending from the front to the back, these long connecting grooves 2122 are located around the inlet hole 2121, and these long connecting grooves 2122 are located on the radius of a circle concentric with the center of the inlet hole 2121, for passing through anti-loosening bolts to be fixedly connected to the adapter 220.

[0028] The long connecting groove 2122 here is a connecting groove that extends to a certain length so that the anti-loosening bolt can be adjusted in position within the long connecting groove 2122, thereby making the fixed platform 210 have a certain compatibility and can be adapted to the adapter 220 of different sizes, so that the tooling for valve inspection in this application can be adapted to different valve sizes (such as DN15-DN100).

[0029] Optionally, the fixed platform 210 is made of aluminum alloy / carbon steel. Alternatively, the long connecting grooves 2122 around the inlet hole 2121 are evenly distributed, meaning that the angle between any two adjacent long connecting grooves 2122 is the same, thus ensuring a uniform fixed connection between the adapter 220 and the fixed platform 210, and consequently, a more uniform connection force on the adapter 220 and the fixed platform 210. Alternatively, eight long connecting grooves 2122 are evenly distributed around the inlet hole 2121. Also optionally, the upper end of the fixed support leg 211 is fixedly connected to the back of the fixed plate 212 near the edge, thus making the space corresponding to the middle part of the fixed plate 212 an open space, providing installation and accommodation space for fluid pipes. Still optionally, the fixed plate 212 has one or more inlet holes 2121, allowing the fixed platform 210 to install one or more adapters 220.

[0030] Based on the above, the fixed platform 210 also includes: a mounting plate 213; the mounting plate 213 is fixedly connected to the middle / lower section of the fixed support leg 211, so that the mounting plate 213 is located below the fixed plate 212. Other components, such as: media filtering module, media release module, pressure detection module and flow detection module, can be placed or fixed through the mounting plate 213.

[0031] like Figure 4 and Figure 5 As shown, the adapter 220 includes: an adapter plate 221, a connector 222, and multiple clamps 223; wherein, the adapter plate 221 has gas through holes 2211 extending through both sides, one end of the connector 222 is fixed to the back of the adapter plate 221, and the connector 222 communicates with the gas through holes 2211, and the other end of the connector 222 is used to communicate with a fluid pipeline; the adapter plate 221 also has multiple connecting holes 2212 extending through both sides, these connecting holes 2212 are located around the gas through holes 2211, and these connecting holes 2212 are used to connect... Hole 2212 is located on the radius of a circle concentric with the center of the gas through hole 2211; the anti-loosening bolt passes through the long connecting groove 2122 and the connecting hole 2212, thereby fixing the fixed plate 212 and the adapter plate 221. The fixed connection by bolts facilitates disassembly and maintenance between the adapter device 220 and the fixed platform 210; the lower ends of all clamps 223 are connected to the edge of the adapter plate 221, and the upper end of each clamp 223 is bent inward, so that multiple clamps 223 can clamp the flange of the valve 300. The adapter plate 221 can be of different sizes, so that the adapter device 220 has different specifications. In this application, the adapter device 200 can meet the use of valves 300 with flange diameters of 100-500mm.

[0032] Optionally, the adapter 220 is made of a medium-compatible material, such as a PTFE-lined corrosion-resistant material. Alternatively, the connecting holes 2212 around the gas through-hole 2211 are evenly distributed on the same circumference to accommodate evenly distributed long connecting slots 2122. Alternatively, eight connecting holes 2212 are evenly distributed around the gas through-hole 2211 to accommodate eight long connecting slots 2122. Still alternatively, the edge of the adapter plate 221 has multiple inwardly recessed clamp mounting slots 2213 that extend through both sides. The lower end of each clamp 223 connects to one clamp mounting slot 2213 of the adapter plate 221, and a connecting hole 2212 is located on the portion between two clamp mounting slots 2213 of the adapter plate 221, thereby preventing the flange of the valve 300 from obstructing the connection between the adapter plate 221 and the fixed plate 212.

[0033] Optionally, the lower end of the caliper 223 can be detachably connected to the edge of the adapter plate 221. This allows for the reliable clamping of the valve 300's flange by first removing a portion of the caliper 223, and then, after the remaining caliper 223 has clamped the valve 300's flange, connecting the removed caliper 223 to the edge of the adapter plate 221. Alternatively, the lower end of the caliper 223 can be detachably connected to the edge of the adapter plate 221 using screws. Still optional, the caliper 223 can be a telescopic component, allowing it to be used to clamp flanges of the valve 300 of varying thicknesses. As an example, the caliper 223 can be a lead screw, with its lower end threaded to the edge of the adapter plate 221, ensuring the caliper 223 is telescopic. As another example: the caliper 223 is a hydraulic rod, the lower end of the fixed rod of the hydraulic rod is fixedly connected to the edge of the adapter plate 221, and the upper end of the movable rod of the hydraulic rod is bent inward, so that the caliper 223 can be extended and retracted by hydraulic drive.

[0034] Based on the above, the adapter 220 further includes a sealing gasket 224. The sealing gasket 224 is placed on the front of the adapter plate 221 and located within the space surrounded by all the clamps 223. Thus, after the clamps 223 engage the flange of the valve 300, the sealing gasket 224 is pressed against the end face of the flange of the valve 300 and the front of the adapter plate 221, thereby ensuring the airtightness of the testing environment. Optionally, the sealing gasket 224 is an O-ring / spiral wound gasket to prevent media leakage.

[0035] In this application, by adjusting the model, quantity, and other parameters of the adapter device 220 on the fixed platform 210, valves 300 of different models and quantities can be sealed and stably fixed, reducing the risk of vibration / displacement of valves 300 during the testing process, and making the tooling used for valve inspection in this application applicable to a wider range of valve interfaces.

[0036] like Figure 6 As shown, the tooling for valve inspection in this application further includes a media filtration module 230. The media filtration module 230 is installed on a fixed platform 210, specifically on a mounting plate 213 of the fixed platform 210. The media filtration module 230 is used to communicate with a fluid pipeline located upstream of the valve 300, thereby removing solid particles, suspended matter, microorganisms, and other impurities from the medium (liquid or gas) in the fluid pipeline, ensuring the stable operation of downstream equipment or processes. In this application, the media filtration module 230 can be selected from screen filters, cartridge filters, basket filters, Y-type filters, etc.

[0037] In addition, the tooling for valve inspection in this application also includes a media release module 280, which is installed on a fixed platform 210, specifically on a mounting plate 213 of the fixed platform 210. The media release module 280 is used to connect to a fluid pipeline downstream of the valve 300 to release the harmlessly treated media, such as through venting, drainage, or emergency release. Optionally, the media release module 280 can be a solenoid valve for remote control and rapid media release; furthermore, a manual pressure relief valve can be used for redundant safety design; and a diffuser can be used to reduce the discharge rate (to prevent splashing / atomization).

[0038] Furthermore, the tooling for valve inspection in this application also includes an upstream pressure detection module 240 and a downstream pressure detection module 270. Both the upstream and downstream pressure detection modules 240 are mounted on a fixed platform 210, specifically on the mounting plate 213 of the fixed platform 210. The upstream pressure detection module 240 is used to connect with the fluid pipeline between the media filter 230 and the valve 300, and the downstream pressure detection module 270 is used to connect with the fluid pipeline between the valve 300 and the media release module 280. The upstream and downstream pressure detection modules 240 and 270 can monitor the pressure changes of the medium (liquid or gas) in the fluid pipeline in real time, ensuring safe equipment operation, optimizing process control, and triggering protection mechanisms in case of overpressure or underpressure. Optionally, the upstream and downstream pressure detection modules 240 can be selected from liquid column pressure gauges, elastic pressure gauges, piston pressure gauges, etc.

[0039] In addition, the tooling for valve inspection in this application also includes an upstream flow detection module 250 and a downstream flow detection module 260. Both the upstream flow detection module 250 and the downstream flow detection module 260 are mounted on a fixed platform 210, specifically on a mounting plate 213 of the fixed platform 210. The upstream flow detection module 250 is used to connect with the fluid pipeline between the upstream pressure detection module 240 and the valve 300, and the downstream flow detection module 260 is used to connect with the fluid pipeline between the valve 300 and the downstream pressure detection module 270. The upstream flow detection module 270 collects flow information of the medium before it enters the valve 300 for inspection, and the downstream flow detection module 280 collects flow information of the medium after it exits the valve 300 after inspection. Optionally, the upstream flow detection module 270 and the downstream flow detection module 280 can be turbine flow meters (suitable for clean fluids), ultrasonic flow meters (for highly corrosive media), electromagnetic flow meters (suitable for conductive liquids), etc.

[0040] This application adopts a modular approach (media filtration module 230, upstream pressure detection module 240, upstream flow detection module 250, adapter 220, valve 300, adapter 220, downstream pressure detection module 260, downstream flow detection module 270, media release module 280), and the required modules can be added or removed according to the detection needs.

[0041] For high-precision testing requirements, a high-precision testing module can be used to ensure the accuracy and reliability of the test results, thereby meeting the high-performance requirements of rocket valves. If different testing modules are damaged or need to be sent for further testing, a spare testing module can be quickly replaced to avoid affecting the valve testing schedule.

[0042] In addition, this application, through media filtration module, pressure detection module, flow detection module, etc., can realize media impurity removal, real-time pressure monitoring, and real-time flow monitoring, achieving the multi-functional purpose of valve testing. It can conduct comprehensive inspection of rocket valves, avoid missed inspections, and improve the accuracy and reliability of inspection.

[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A tooling for valve inspection, characterized in that, include: Fixed platform, adapter, and anti-loosening bolts; The fixed platform includes: fixed legs and fixed plate. The upper end of the fixed legs is fixedly connected to the back of the fixed plate. The fixed plate has an inlet hole that runs from the front to the back and multiple long connecting grooves. The long connecting grooves are located around the inlet hole and are located on the radius of a circle concentric with the center of the inlet hole. The adapter includes: an adapter plate, a connector nozzle, and multiple clamps; the adapter plate has gas through holes on both sides and multiple connection holes, the connection holes are located around the gas through holes and on the radius of a circle concentric with the center of the gas through holes, and anti-loosening bolts pass through the long connecting groove and the connection holes to fix the fixed plate and the adapter plate. One end of the connector is fixed to the back of the adapter plate and communicates with the gas vent, while the other end of the connector is used to communicate with the fluid pipeline; the lower ends of all clamps are connected to the edge of the adapter plate, and the upper end of each clamp is bent inward for clamping valve flanges.

2. The tooling for valve inspection according to claim 1, characterized in that, The long connecting grooves around the inlet are evenly distributed, and the connecting holes around the gas inlet are evenly distributed on the same circumference.

3. The tooling for valve inspection according to claim 1 or 2, characterized in that, The fixed platform also includes: a mounting plate; and a fixed connection between the mounting plate and the middle / lower section of the fixed support leg.

4. The tooling for valve inspection according to claim 1 or 2, characterized in that, The adapter plate has multiple inwardly recessed caliper mounting slots that extend through both sides. The lower end of each caliper is connected to the inside of the adapter plate, and a connection hole is located on the portion of the adapter plate between two caliper mounting slots.

5. The tooling for valve inspection according to claim 1 or 2, characterized in that, The caliper is retractable, and its lower end is detachably connected to the edge of the adapter plate.

6. The tooling for valve inspection according to claim 1 or 2, characterized in that, The adapter also includes a sealing gasket; the sealing gasket is placed on the front of the adapter plate and is located within the space surrounded by all the calipers.

7. The tooling for valve inspection according to claim 1 or 2, characterized in that, Also includes: The media filtration module is mounted on a fixed platform and is used to communicate with a fluid pipeline located upstream of the valve.

8. The tooling for valve inspection according to claim 7, characterized in that, Also includes: The medium release module is mounted on a fixed platform and is used to connect to a fluid pipeline located downstream of the valve.

9. The tooling for valve inspection according to claim 8, characterized in that, Also includes: Upstream pressure detection module and downstream pressure detection module; Both the upstream and downstream pressure detection modules are installed on a fixed platform. The upstream pressure detection module is used to connect the fluid pipeline between the media filter and the valve, while the downstream pressure detection module is used to connect the fluid pipeline between the valve and the media release module.

10. The tooling for valve inspection according to claim 8, characterized in that, Also includes: Upstream flow detection module and downstream flow detection module; Both the upstream flow detection module and the downstream flow detection module are installed on a fixed platform. The upstream flow detection module is used to connect the fluid pipeline between the upstream pressure detection module and the valve, while the downstream flow detection module is used to connect the fluid pipeline between the valve and the downstream pressure detection module.

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