Intelligent measurement and control equipment for water conservancy pipeline pressure test

Abstract

The invention belongs to the technical field of pipeline testing, and particularly relates to intelligent measurement and control equipment for water conservancy pipeline pressure testing. The device comprises a sealing pipe, an air pump and a controller, wherein the air pump is hermetically connected with the sealing pipe through an air inlet pipe; a plurality of through holes are formed in the surface of the sealing pipe; the sealing pipe is connected with a first sealing structure and a second sealing structure, and a sealed testing space is formed among the first sealing structure, the second sealing structure, the sealing pipe and the to-be-tested pipeline; wherein the first sealing structure is fixedly connected to the sealing pipe, the second sealing structure can move on the sealing pipe, and a spraying mechanism is installed on the second sealing structure and used for spraying foam water to the inner wall of a to-be-detected pipeline; the first sealing structure and the second sealing structure are connected to the two ends of the sealing pipe, the sealing pipe and the to-be-tested pipeline are sealed through the first sealing structure and the second sealing structure, then the pipeline can be locally tested, and accurate testing is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline testing, and in particular to an intelligent measurement and control device for water conservancy pipeline pressure testing. Background Art

[0002] The safety and reliability of water conservancy pipeline systems are subject to strict laws, regulations and standards. These regulations and standards usually require that pipeline systems must undergo pressure testing to prove their pressure resistance and sealing performance under the design pressure. In particular, pipeline systems must have a high degree of safety and reliability when transporting liquids. Due to the pressure and temperature changes that pipelines may face and the influence of the external environment, pressure testing of pipeline systems can help discover potential leaks, weaknesses or defects, and ensure that the pipelines will not leak or suddenly fail under normal working pressure.

[0003] The existing method is to seal both ends of the pipeline and fill the inside of the pipeline with high-pressure gas to perform a pressure test on the pipeline. This test method has the following problems: it can only test the pipeline as a whole, but not a local test, and it is impossible to accurately test the specified position of the pipeline, making it difficult to find the leak point; and if the pipeline to be tested is long as a whole, a large amount of high-pressure gas needs to be filled in, which takes a long time to test and is more troublesome. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an intelligent measurement and control device for water conservancy pipeline pressure testing. By connecting a first sealing structure and a second sealing structure to a sealing tube, precise testing can be performed on specified positions of the pipeline to be tested, aiming to solve the problems in the background technology.

[0005] In order to achieve the above technical objectives, the specific technical scheme of the present invention is as follows: an intelligent measurement and control device for water conservancy pipeline pressure testing proposed by the present invention includes: a sealing tube, an air pump and a controller, the air pump is sealed and connected to the sealing tube through an air inlet pipe; the sealing tube is arranged inside the pipeline to be tested, and a plurality of through holes are arranged on the surface of the sealing tube; and a first sealing structure and a second sealing structure are connected to the sealing tube, and a sealed test space is formed between the first sealing structure, the second sealing structure, the sealing tube and the pipeline to be tested; wherein the first sealing structure is fixedly connected to the sealing tube, the second sealing structure can move on the sealing tube, and a spraying mechanism is installed on the second sealing structure for spraying foam water on the inner wall of the pipeline to be tested.

[0006] As a preferred technical solution of the present invention, the spraying mechanism is provided with a pair of sliders symmetrically installed on the second sealing structure; the spraying mechanism includes a semicircular track, a pair of sliders are symmetrically slidably connected to the track, a spraying pipe is fixedly connected to the slider, and a high-pressure foam tank is installed on the track, a first solenoid valve is installed at the outlet of the high-pressure foam tank, and the first solenoid valve is sealed and connected to the spraying pipe through a hose.

[0007] As a preferred technical solution of the present invention, a pair of rotating shafts are installed under the track, and a telescopic part is fixedly connected to the rotating shaft. One end of the telescopic part is rotatably connected to the slider. When the rotating shaft rotates, it can drive the slider to slide, and two mutually meshing gears are fixedly connected to the two rotating shafts.

[0008] As a preferred technical solution of the present invention, a complete gear is coaxially fixedly connected to one of the gears, an incomplete gear meshing with the complete gear is installed on one side of the track, the incomplete gear is coaxially fixedly connected to a roller in contact with the outer wall of the sealing tube, and a reset torsion spring is installed on the rotating shaft.

[0009] As a preferred technical solution of the present invention, the first sealing structure includes a first ring-shaped mounting member and a first airbag, the first mounting member is used to mount the first airbag and is fixedly connected to the sealing tube, the first airbag is used to seal between the sealing tube and the pipeline to be tested; the first mounting member is provided with a mounting groove, the first airbag is provided with a connecting portion that cooperates with the mounting groove, and the first mounting member is provided with a blocking portion for supporting the first airbag.

[0010] As a preferred technical solution of the present invention, the second sealing structure includes a pair of second mounting parts and a second airbag, wherein the second airbag is arranged between the two second mounting parts, the second mounting part has the same structure as the first mounting part, and a plurality of pulleys in contact with the sealing tube are installed on the second mounting part.

[0011] As a preferred technical solution of the present invention, the first airbag and the second airbag are connected via a second air pipe, a first control valve, a second control valve and a pressure gauge are installed on the air intake pipe, and the second control valve is connected to the first airbag via the first air pipe.

[0012] As a preferred technical solution of the present invention, a driving mechanism is installed inside the sealing tube for driving the second sealing structure to move, the driving mechanism includes a fixed plate, a driving motor is installed on the fixed plate, a lead screw is connected to the rotating shaft of the driving motor, and a slide rail is installed on the fixed plate, the slide rail is slidably connected to a slide, the slide is threadedly connected to the lead screw, and a driving gear is installed on the slide, the fixed plate is slidably connected to a toothed rod meshing with the driving gear, and the slide rail is fixedly connected to a rack meshing with the driving gear; a connecting rod is fixedly connected to the toothed rod.

[0013] As a preferred technical solution of the present invention, a movable sealing seat is sealed in the sealing tube, the connecting rod is fixedly connected to the sealing seat, and the sealing seat is fixedly connected to the second sealing structure through a bracket, and an avoidance hole cooperating with the bracket is provided on the surface of the sealing tube.

[0014] The beneficial effects of the present invention are:

[0015] 1. The present invention connects the first sealing structure and the second sealing structure at both ends of the sealing tube. By placing the sealing tube in the pipeline to be tested, the first sealing structure and the second sealing structure seal the sealing tube and the pipeline to be tested, and then the pipeline can be partially tested to achieve the purpose of accurate testing.

[0016] 2. The present invention connects a spraying mechanism to the second sealing structure. When the second sealing structure moves on the sealing tube, it drives the spraying mechanism to spray foam water on the inner wall of the pipeline to be tested. If a leak is found, the high-pressure gas in the test space drives the foam water to flow out from the leak, thereby quickly finding the leak. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of an intelligent measurement and control device for water conservancy pipeline pressure testing proposed by the present invention.

[0018] Figure 2 It is a schematic diagram of the sealing tube, the first sealing structure and the second sealing structure proposed by the present invention.

[0019] Figure 3 It is a structural schematic diagram of the spraying mechanism proposed in the present invention.

[0020] Figure 4 This is a schematic diagram from another angle of the spraying mechanism proposed by the present invention.

[0021] Figure 5 This is a schematic diagram of the first sealing structure proposed by the present invention.

[0022] Figure 6 This is a schematic diagram of the second sealing structure proposed by the present invention.

[0023] Figure 7 This is a schematic diagram of the structure of the driving mechanism proposed in the present invention.

[0024] In the figure: 1, sealing tube; 101, through hole; 102, avoidance hole; 2, first sealing structure; 201, first mounting member; 202, first airbag; 203, mounting groove; 204, connecting part; 205, blocking part; 3, second sealing structure; 301, second mounting member; 302, second airbag; 303, pulley; 4, spraying mechanism; 401, track; 402, slider; 403, spraying pipe; 404, high-pressure foam tank; 405, hose; 406, first solenoid valve; 407, rotating shaft; 408, telescopic member; 409, reset torsion spring; 41 0. Gear; 411. Complete gear; 412. Incomplete gear; 413. Roller; 5. Driving mechanism; 501. Fixed plate; 502. Driving motor; 503. Screw rod; 504. Slide; 505. Driving gear; 506. Rack; 507. Rack rod; 508. Connecting rod; 509. Slide rail; 6. Sealing seat; 7. Test space; 8. Bracket; 9. Inlet pipe; 10. Pressure gauge; 11. First control valve; 12. Air pump; 13. Controller; 14. Second control valve; 15. First air pipe; 16. Second air pipe; 17. Pipeline to be tested. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Embodiment: This embodiment discloses an intelligent measurement and control device for water conservancy pipeline pressure testing, such as Figure 1-Figure 7 As shown, it includes: a sealing tube 1, an air pump 12 and a controller 13, the air pump 12 is sealed and connected to the sealing tube 1 through an air inlet pipe 9, and a detachable sealing seat body is sealed and fixedly connected at both ends of the sealing tube 1; wherein, the length of the air inlet pipe 9 is not limited, and the air pump 12 is used to fill the sealing tube 1 with high-pressure gas; wherein, the sealing tube 1 is arranged inside the pipeline to be tested 17, and a plurality of through holes 101 are arranged on the surface of the sealing tube 1, and the gas enters the pipeline to be tested 17 through the through holes 101; and a first sealing structure 2 and a second sealing structure 3 are connected to the sealing tube 1, and a sealed test space 7 is formed between the first sealing structure 2, the second sealing structure 3, the sealing tube 1 and the pipeline to be tested 17, by inserting the sealing tube 1 into a specified position of the pipeline to be tested 17, the first sealing structure 2 and the second sealing structure 3 seal the sealing tube 1 and the pipeline to be tested 17, and then the specified position of the pipeline to be tested can be pressure tested, and there is no need to perform a sealing test on the entire pipeline, and the test is more convenient.

[0027] Preferably, the first sealing structure 2 is fixedly connected to the sealing tube 1, and the second sealing structure 3 can move on the sealing tube 1. By moving the second sealing structure 3, the size of the test space 7 can be changed, thereby adjusting the size of the test space and adjusting the test length of the pipeline to be tested. A spraying mechanism 4 is installed on the second sealing structure 3 to spray foam water on the inner wall of the pipeline 17 to be tested. When the second sealing structure 3 moves, the spraying mechanism 4 is driven to operate, and the foam water flows out from the leak point in the test space 7 through the high-pressure gas, thereby facilitating the finding of leak points and defect points of the pipeline. like Figure 2-Figure 4 As shown, the spraying mechanism 4 is provided with a pair and symmetrically installed on the second sealing structure 3, so as to achieve the effect of comprehensively spraying the inner wall of the pipe 17 to be tested; wherein, the spraying mechanism 4 includes a semicircular track 401, the track 401 is arranged on the periphery of the sealing tube 1 and is fixedly connected to the second mounting member 301, a pair of sliders 402 are symmetrically slidably connected to the track 401, a spraying pipe 403 is fixedly connected to the slider 402, a plurality of spraying holes are provided on the spraying pipe 403, and foam water is sprayed from the spraying holes, and a high-pressure foam tank 404 is installed on the track 401, and a first solenoid valve 406 is installed at the outlet of the high-pressure foam tank 404, and the first solenoid valve 406 is controlled to switch by the controller 13; the first solenoid valve 406 is sealed and connected to the spraying pipe 403 through a hose 405, and the switch of the first solenoid valve 406 can be controlled by the controller 13. After the first solenoid valve 406 is opened, the foam water in the high-pressure foam tank 404 is automatically sprayed out through the spraying pipe 403.

[0028] Among them, a pair of rotating shafts 407 are installed under the track 401, and the rotating shafts 407 can rotate. A telescopic member 408 is fixedly connected to the rotating shaft 407. One end of the telescopic member 408 is rotatably connected to the slider 402. When the rotating shaft 407 rotates, it can drive the slider 402 to slide, and two mutually meshing gears 410 are fixedly connected to the two rotating shafts 407, so that the two rotating shafts 407 rotate in opposite directions; and a complete gear 411 is coaxially fixedly connected to one of the gears 410, and an incomplete gear 412 meshing with the complete gear 411 is installed on one side of the track 401. The incomplete gear 412 is coaxially fixedly connected to a roller 413 in contact with the outer wall of the sealing tube 1, and a reset torsion spring 409 is installed on the rotating shaft 407; during the spraying process, the second sealing structure 3 drives the sprayer When the structure 4 moves axially along the sealing tube 1, the roller 413 rolls on the surface of the sealing tube 1. When the roller 413 rotates, it drives the incomplete gear 412 to rotate, and the incomplete gear 412 drives the complete gear 411 to rotate intermittently. When the incomplete gear 412 is meshed with the complete gear 411, it drives the rotating shaft 407 to rotate, and then drives the slider 402 to slide from one end of the track 401 to the middle position, thereby increasing the spraying area of ​​the spraying pipe 403 on the inner wall of the pipeline 17 to be tested; when the incomplete gear 412 is separated from the complete gear 411, the rotating shaft 407 rotates in the opposite direction under the torsion of the reset torsion spring 409, driving the slider 402 to quickly return from the middle position of the track 401 to one end position, thereby driving the spraying pipe 403 to reciprocate, thereby achieving the purpose of spraying the inner wall of the sealing tube 1 comprehensively.

[0029] like Figure 5-Figure 6As shown, the first sealing structure 2 includes a first ring-shaped mounting member 201 and a first airbag 202. The first mounting member 201 is used to mount the first airbag 202, and the first mounting member 201 is fixedly connected to the sealing tube 1. After the first airbag 202 is inflated, it can seal the sealing tube 1 and the pipeline 17 to be tested; the first mounting member 201 is provided with a mounting groove 203, and the first airbag 202 is provided with a connecting portion 204 that cooperates with the mounting groove 203 to prevent the first airbag 202 from separating from the first mounting member 201, and the first mounting member 201 is provided with a blocking portion 205 for supporting the first airbag 202, and the blocking portion 205 is arranged at the outer position. Due to the inside of the test space 7, the first airbag 202 is sealed between the sealing tube 1 and the pipeline 17 to be tested. In the high-pressure state, the blocking portion 205 serves to support and limit the first airbag 202; wherein, the second sealing structure 3 includes a pair of second mounting members 301 and a second airbag 302, wherein the second airbag 302 is arranged between the two second mounting members 301, and the second mounting member 301 has the same structure as the first mounting member 201, except that a plurality of pulleys 303 in contact with the sealing tube 1 are installed on the second mounting member 301, so as to facilitate the movement of the second sealing structure 3 on the sealing tube 1; wherein, the second airbag 302 is different from the first airbag 202 in that both sides of the second airbag 302 are provided with connecting portions 204 which cooperate with the second mounting member 301.

[0030] Among them, the first airbag 202 and the second airbag 302 are connected through the second air pipe 16, so that the first airbag 202 and the second airbag 302 are connected. The second air pipe 16 is made of a hose material, which is convenient for cooperating with the movement of the second sealing structure 3. The first control valve 11, the second control valve 14 and the pressure gauge 10 are installed on the air inlet pipe 9. The pressure gauge 10 is used to monitor the pressure in the test space 7. The second control valve 14 is connected to the first airbag 202 through the first air pipe 15; by opening the first control valve 11, high-pressure gas can be filled into the pipeline 17 to be tested; by opening the second control valve 14, the first airbag 202 and the second airbag 302 can be inflated, wherein the second control valve 14 is only used to control the inflation of the first airbag 202 and the second airbag 302, and does not affect the inflation of the pipeline 17 to be tested.

[0031] like Figure 7As shown, a driving mechanism 5 is installed inside the sealing tube 1 for driving the second sealing structure 3 to move, and the driving mechanism 5 includes a fixed plate 501, which is fixedly installed in the sealing tube 1, and a driving motor 502 is installed on the fixed plate 501, and a screw rod 503 is connected to the rotating shaft of the driving motor 502, and a slide rail 509 is installed on the fixed plate 501, and a slide rail 509 is slidably connected to a slide 504, and the slide 504 is threadedly connected to the screw rod 503, and a driving gear 505 is installed on the slide 504, and a toothed rod 507 meshing with the driving gear 505 is slidably connected to the fixed plate 501, and a rack 506 meshing with the driving gear 505 is fixedly connected to the slide rail 509; a connecting rod 508 is fixedly connected to the toothed rod 507; the screw rod 507 is fixedly connected to the connecting rod 508; When the rod 503 rotates, it drives the slide 504 to move. When the slide 504 moves, it drives the gear rod 507 to move through the driving gear 505. At the same time, the driving gear 505 rotates, further driving the gear rod 507 to move, thereby increasing the moving stroke of the gear rod 507. A movable sealing seat 6 is sealed in the sealing tube 1, and an air outlet is provided at one end of the sealing tube 1 close to the sealing seat 6. The connecting rod 508 is fixedly connected to the sealing seat 6, and the sealing seat 6 is fixedly connected to the second sealing structure 3 through the bracket 8. An avoidance hole 102 cooperating with the bracket 8 is provided on the surface of the sealing tube 1. By arranging the sealing seat 6 to move synchronously with the second sealing structure 3, the sealing volume of the sealing tube 1 can be reduced or increased synchronously, and the sealing length is adapted to the axial length of the test space 7.

[0032] During the specific implementation: during the test, the sealing tube 1 is inserted into the designated test position of the pipeline 17 to be tested, and the designated position of the pipeline 17 to be tested is tested, and then the air pump 12 is started, and then the second control valve 14 is opened, and the air pump 12 inflates the first airbag 202 and the second airbag 302, so that the first airbag 202 and the second airbag 302 can seal the sealing tube 1 and the pipeline 17 to be tested; then the first control valve 11 is opened, and the air pump 12 inflates the test space 7 with high-pressure gas to the designated air pressure, and after the air pump 12 is turned off, the first control valve 11 is closed. 11, and then observe the changes in the value of the barometer 10. If the value of the barometer 10 changes abnormally, the second sealing structure 3 can be driven to move axially through the driving mechanism 5. When the second sealing structure 3 moves, it drives the spraying mechanism 4 to spray foam water on the inner wall of the test space 7. During the spraying process, the spraying pipe 403 moves back and forth to spray the inner wall of the test space 7 comprehensively. After spraying, the second sealing structure 3 returns to its original position. If there is a leak, the high-pressure gas in the test space 7 drives the foam water to leak out from the leak, so that the leak can be quickly found.

[0033] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intelligent measurement and control device for water conservancy pipeline pressure testing, characterized in that: include: A sealing tube (1), an air pump (12) and a controller (13), wherein the air pump (12) is sealedly connected to the sealing tube (1) via an air inlet pipe (9); The sealing tube (1) is arranged inside the pipeline to be tested (17), and a plurality of through holes (101) are arranged on the surface of the sealing tube (1); The sealing tube (1) is connected to a first sealing structure (2) and a second sealing structure (3), and a sealed test space (7) is formed between the first sealing structure (2), the second sealing structure (3), the sealing tube (1) and the pipeline to be tested (17); The first sealing structure (2) is fixedly connected to the sealing tube (1), the second sealing structure (3) is movable on the sealing tube (1), and a spraying mechanism (4) is installed on the second sealing structure (3) for spraying foam water on the inner wall of the pipeline (17) to be tested.

2. The intelligent measurement and control equipment for water conservancy pipeline pressure testing according to claim 1 is characterized in that: The spraying mechanism (4) is provided with a pair of sliders (402) symmetrically mounted on the second sealing structure (3); the spraying mechanism (4) comprises a semicircular track (401), a pair of sliders (402) symmetrically slidably connected to the track (401), a spraying pipe (403) fixedly connected to the sliders (402), a high-pressure foam tank (404) mounted on the track (401), a first solenoid valve (406) mounted at the outlet of the high-pressure foam tank (404), and the first solenoid valve (406) being sealedly connected to the spraying pipe (403) via a hose (405).

3. The intelligent measurement and control equipment for water conservancy pipeline pressure testing according to claim 2 is characterized in that: A pair of rotating shafts (407) are installed below the track (401), and a telescopic member (408) is fixedly connected to the rotating shaft (407). One end of the telescopic member (408) is rotatably connected to the slider (402). When the rotating shaft (407) rotates, it can drive the slider (402) to slide, and two mutually meshing gears (410) are fixedly connected to the two rotating shafts (407).

4. The intelligent measurement and control equipment for water conservancy pipeline pressure testing according to claim 3 is characterized in that: A complete gear (411) is coaxially fixedly connected to one of the gears (410), an incomplete gear (412) meshing with the complete gear (411) is installed on one side of the track (401), a roller (413) in contact with the outer wall of the sealing tube (1) is coaxially fixedly connected to the incomplete gear (412), and a return torsion spring (409) is installed on the rotating shaft (407).

5. The intelligent measurement and control equipment for water conservancy pipeline pressure testing according to claim 1 or 4, characterized in that: The first sealing structure (2) comprises a first annular mounting member (201) and a first airbag (202); the first mounting member (201) is used to mount the first airbag (202) and is fixedly connected to the sealing tube (1); the first airbag (202) is used to seal between the sealing tube (1) and the pipeline (17) to be tested; a mounting groove (203) is provided on the first mounting member (201); a connecting portion (204) cooperating with the mounting groove (203) is provided on the first airbag (202); and a stopper (205) for supporting the first airbag (202) is provided on the first mounting member (201).

6. The intelligent measurement and control equipment for water conservancy pipeline pressure testing according to claim 5 is characterized in that: The second sealing structure (3) comprises a pair of second mounting members (301) and a second airbag (302), wherein the second airbag (302) is arranged between the two second mounting members (301), the second mounting member (301) has the same structure as the first mounting member (201), and a plurality of pulleys (303) in contact with the sealing tube (1) are mounted on the second mounting member (301).

7. The intelligent measurement and control equipment for water conservancy pipeline pressure testing according to claim 6 is characterized in that: The first airbag (202) and the second airbag (302) are connected via a second air pipe (16); a first control valve (11), a second control valve (14) and a pressure gauge (10) are installed on the air intake pipe (9); and the second control valve (14) is connected to the first airbag (202) via the first air pipe (15).

8. The intelligent measurement and control equipment for water conservancy pipeline pressure testing according to claim 7 is characterized in that: A driving mechanism (5) is installed inside the sealing tube (1) for driving the second sealing structure (3) to move. The driving mechanism (5) comprises a fixed plate (501), a driving motor (502) is installed on the fixed plate (501), a screw rod (503) is connected to the rotating shaft of the driving motor (502), and a slide rail (509) is installed on the fixed plate (501). The slide rail (509) is slidably connected to a slide frame (504), the slide frame (504) is threadedly connected to the screw rod (503), and a driving gear (505) is installed on the slide frame (504). A toothed rod (507) meshing with the driving gear (505) is slidably connected to the fixed plate (501), and a rack (506) meshing with the driving gear (505) is fixedly connected to the slide rail (509); and a connecting rod (508) is fixedly connected to the toothed rod (507).

9. The intelligent measurement and control equipment for water conservancy pipeline pressure testing according to claim 8, characterized in that: A movable sealing seat (6) is sealedly connected inside the sealing tube (1), a connecting rod (508) is fixedly connected to the sealing seat (6), and the sealing seat (6) is fixedly connected to the second sealing structure (3) via a bracket (8), and a avoidance hole (102) cooperating with the bracket (8) is provided on the surface of the sealing tube (1).

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