Gas guide counter-recoil mechanism and purging auxiliary device

Abstract

The invention relates to the technical field of sampling and purging, and discloses a gas guide counter-recoil mechanism and an auxiliary purging device. The sampling sleeve comprises a pushing end head positioned at the top of the inner wall of the sampling sleeve; the conveying rod is fixedly arranged at the bottom of the pushing end, and the cleaning end is elastically connected with the bottom of the pushing end. An air blowing opening is formed in the bottom of the pushing end in a penetrating mode, and the cleaning end is located below the air blowing opening. The moving cavity is formed in the sampling sleeve, the sealing block is fixed to the bottom of the moving cavity, the transmission plate slides along the inner wall of the sealing block, and the adjusting plate is in torsion connection with the inner wall of the sampling sleeve and located above the transmission plate. And the cleaning end head can effectively treat condensed blocks and can be matched with compressed air flow entering the cleaning end head in the resetting process, residual dust on the surface of the cleaning end head can be cleaned by the way, and the effect of active maintenance can be achieved. Intermittent cleaning can be achieved without continuously inputting compressed air, energy is saved, and meanwhile cleaning is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of sampling and purging, in particular to an air-guiding recoil mechanism and a purging auxiliary device. Background Art

[0002] When the existing thermal power plant boiler is in operation, the conventional sampling system on site sometimes cannot efficiently and quickly handle the blockage of the sampling hole, resulting in the boiler furnace pressure being blocked and unable to be used normally, and the loss of measurement point protection. Many teams use manual cleaning to deal with it. This method is not only inefficient and consumes a lot of human resources, but also prone to errors in manual judgment, which adds many safety hazards during boiler operation. The conventional purge method is to directly use compressed air to blow soot. When the compressed air stops releasing, the purge ends. The single airflow has many instabilities in cleaning dust and agglomerates.

[0003] Therefore, there is a need for an air guide and return mechanism and a purge auxiliary device that can significantly improve the purge efficiency and provide intermittent cleaning and scraping functions to meet the needs of the existing construction environment. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the title of the invention of this application to avoid blurring the purpose of this section, the abstract of the specification and the title of the invention, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above-mentioned prior art, the conventional sampling system on site sometimes cannot efficiently and quickly deal with the blockage of the sampling holes, the manual cleaning method is inefficient and consumes a lot of human resources, and manual judgment is prone to errors. The single airflow has many unstable cleaning effects on dust and lumps. The present invention is proposed.

[0006] Therefore, the technical problem to be solved by the present invention is to design a sampling pipeline purging auxiliary device that can significantly improve the purging efficiency and provide intermittent cleaning and scraping functions to meet the needs of the existing construction environment.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a sampling pipeline purging auxiliary device, comprising:

[0008] A sampling sleeve, comprising a push tip located at the top of the inner wall of the sampling sleeve;

[0009] A conveying rod fixedly arranged at the bottom of the pushing end head, and a cleaning end head elastically connected to the bottom of the pushing end head;

[0010] An air blowing port is formed through the bottom of the pushing end head, and the cleaning end head is located below the air blowing port.

[0011] As an improvement of the present invention, an air supply channel is fixedly opened on the inner wall of the pushing end head, and the air blowing port is connected to the air supply channel through-through.

[0012] As an improvement of the present invention, the outer wall of the conveying rod is fixedly provided with a vertical thread, the cleaning end slides along the vertical thread, the front end of the conveying rod is connected with the inner wall of the cleaning end, and the end of the conveying rod is connected with the gas transmission channel.

[0013] As an improvement of the present invention, a tension spring is fixedly arranged on the top of the cleaning end head, and the other end of the tension spring is fixedly connected to the bottom of the pushing end head.

[0014] As an improvement of the present invention, a stirring plate is fixedly provided at the bottom of the cleaning end head, and the stirring plate is in contact with the inner wall of the sampling sleeve.

[0015] A purge auxiliary device comprises a moving cavity opened in the sampling sleeve, a sealing block fixed at the bottom of the moving cavity, a transmission plate sliding along the inner wall of the sealing block, and an adjustment plate torsionally connected to the inner wall of the sampling sleeve and located above the transmission plate.

[0016] As an improvement of the present invention, an air pressure module is fixedly mounted on the outer wall of the sampling sleeve, and a starting block is slidably embedded in the inner wall of the sampling sleeve.

[0017] As an improvement of the present invention, a docking groove is fixedly opened in the sealing block, the starting block passes through the outer wall of the sampling sleeve and the sealing block, the bottom of the transmission plate is fixedly connected to the starting block, and the starting block slides in the docking groove.

[0018] As an improvement of the present invention, a push block is fixedly arranged on the top of the transmission plate, the bottom of the adjustment plate is connected to the push block, and the other end of the adjustment plate passes through the inner wall of the sampling sleeve and is located below the pushing end.

[0019] As an improvement of the present invention, a sealing ball is fixedly provided at the other end of the adjustment plate, and the sealing ball is connected to the blowing port. An air chamber is fixedly provided on the top of the air pressure module, and an air pressure hole is fixedly provided on the top of the air chamber. A sliding channel is fixedly provided on the inner wall of the air pressure module, and a pressure regulating channel is provided on the inner wall of the air chamber, and the pressure regulating channel is through-connected with the sliding channel.

[0020] As an improvement of the present invention, an adjusting block is elastically provided on the inner wall of the pressure regulating channel, the bottom of the adjusting block is located in the sliding channel, an extension rod is fixedly provided at the end of the starting block, a piston is fixedly provided at the other end of the extension rod, the sliding channel is connected to the sealing block, and the piston slides along the sliding channel.

[0021] The beneficial effects of the present invention are as follows: the cleaning end head can effectively handle condensed agglomerates, and can cooperate with the compressed air flow that begins to enter during the resetting process, and can also clean the residual dust on its own surface, and can also achieve the effect of active maintenance. Intermittent cleaning can be achieved without continuous input of compressed air, which saves energy and significantly improves cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0023] Figure 1 It is a schematic diagram of the overall external structure of the sampling pipeline purge auxiliary device in the present invention.

[0024] Figure 2 It is a schematic diagram of the partial internal structure of the sampling pipeline purge auxiliary device in the present invention.

[0025] Figure 3 It is a three-dimensional schematic diagram of the internal structure of the sampling pipeline purge auxiliary device in the present invention.

[0026] Figure 4 It is a schematic diagram of the interior of the sampling pipeline purge auxiliary device in the present invention.

[0027] Figure 5 This is a three-dimensional cross-sectional view from another angle of the sampling pipeline purge auxiliary device in the present invention.

[0028] Figure 6 It is a partially enlarged schematic diagram of the reset mechanism in the sampling pipeline purge auxiliary device of the present invention. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] Example 1

[0031] Reference Figures 1 to 3 This embodiment provides a sampling pipeline purging auxiliary device, including:

[0032] A pushing end 101 is fixedly provided at the top of the sampling sleeve 100, and compressed air can enter the sampling sleeve 100 through the pushing end 101. A conveying rod 200 is fixedly provided at the bottom of the pushing end 101, and the conveying rod 200 is through-connected with the pushing end 101 to transmit compressed air.

[0033] The cleaning end 201 is slid on the outer wall of the delivery rod 200, and the top of the delivery rod 200 is passed through and located in the cleaning end 201. After the compressed air quickly enters the pushing end 101, it can run along the delivery rod 200 and push the cleaning end 201 to move. The inner wall of the cleaning end 201 and the outer wall of the delivery rod 200 are both covered with sealing materials, which can effectively prevent the leakage of compressed air.

[0034] Two symmetrical movement cavities 300 are provided in the sampling sleeve 100, and two sealing blocks 301 are also provided to seal the bottom of the movement cavity 300. One end of the transmission plate 302 is provided on the inner wall of the sealing block 301, and the other end faces the top direction of the movement cavity 300, and the transmission plate 302 can slide on the inner wall of the sealing block 301.

[0035] The inner wall torque of the sampling sleeve 100 is provided with an adjustment plate 303, one end of the adjustment plate 303 is located in the motion cavity 300, and the other end is located in the sampling sleeve 100. The end of the adjustment plate 303 located in the motion cavity 300 can cooperate with the top of the transmission plate 302. The other end of the adjustment plate 303 located in the sampling sleeve 100 is fixedly provided with a blocking ball 303a, and the blocking ball 303a corresponds to the blowing port 101a fixedly provided at the bottom of the push end 101. In the default state, the blocking ball 303a and the blowing port 101a are tightly fitted, and both are coated with sealing materials, which can effectively prevent the compressed air from escaping.

[0036] The start block 401 is slidably embedded in the inner wall of the sampling sleeve 100 , and the start block 401 is fixedly connected to the transmission plate 302 . The outer shape of the start block 401 is an inclined block shape.

[0037] When the cleaning end 201 moves under the action of compressed air, it can eventually reach the limit position, and the start block 401 is set here. After the cleaning end 201 moves to the limit position, it will contact the inclined surface of the start block 401. When the cleaning end 201 finally runs to the maximum extent, the start block 401 has also moved horizontally. The movement of the start block 401 drives the transmission plate 302 to move accordingly, and the adjustment plate 303 is pushed to rotate under the torque. The blocking ball 303a leaves the air port 101a under the rotation of the adjustment plate 303. At this time, the blocking ball 303a can no longer provide a sealing function, and the compressed air will run out from the air port 101a. The cleaning end 201 itself is elastically connected to the bottom of the push end 101. Without the push of compressed air, the cleaning end 201 will reset. During the reset process, the cleaning end 201 will contact the compressed air again. The compressed air can not only play the role of blowing dust normally, but also clean the cleaning end 201 by the way.

[0038] After the cleaning end 201 returns to its original position, the adjustment plate 303 can slowly and autonomously reset itself, but the speed will not be too fast because it needs to be thoroughly blown into place by compressed air.

[0039] Example 2

[0040] Reference Figures 1 to 4 This embodiment is based on the previous embodiment, and is different from the previous embodiment in that:

[0041] An air delivery channel 101b is fixedly opened on the inner wall of the pushing end 101, and compressed air is transmitted through the air delivery channel 101b. An air blowing port 101a is fixedly opened at the bottom of the pushing end 101, and the air blowing port 101a is also connected to the air delivery channel 101b. Compressed air can pass through the air delivery channel 101b and be discharged from the air blowing port 101a.

[0042] The outer wall of the delivery rod 200 is fixedly provided with a vertical thread 202, and the cleaning end 201 slides with the vertical thread 202. When the cleaning end 201 descends along the outer wall of the delivery rod 200, it can also rotate. The bottom of the cleaning end 201 is fixedly provided with a stirring plate 201b, and the stirring plate 201b is fitted with the inner wall of the sampling sleeve 100. The stirring plate 201b can move with the movement of the cleaning end 201, and effectively scrapes the residual dust and agglomeration on the inner wall of the sampling sleeve 100. The delivery rod 200 is connected with the pushing end 101, and compressed air can be transmitted. The front end of the delivery rod 200 and the inner wall of the cleaning end 201 are connected. After the compressed air quickly enters the pushing end 101, it can run along the delivery rod 200 and push the cleaning end 201 to move. The inner wall of the cleaning end 201 and the outer wall of the delivery rod 200 are both coated with sealing materials, which can effectively prevent the leakage of compressed air.

[0043] A docking groove 301a is fixedly provided in the sealing block 301, and the starter block 401 passes through the outer wall of the sampling sleeve 100 and the sealing block 301, and can slide in the docking groove 301a. The bottom of the transmission plate 302 is fixedly connected to the starter block 401, and when the cleaning end 201 is about to reach the limit position, it will contact the inclined surface of the starter block 401, pushing the starter block 401 to move horizontally, thereby driving the transmission plate 302 to move horizontally synchronously.

[0044] A push block 302a is fixedly arranged on the top of the transmission plate 302, and an adjustment plate 303 is arranged on the inner wall torque of the sampling sleeve 100, and the adjustment plate 303 and the inner wall torque of the sampling sleeve 100 are arranged relatively large. One end of the adjustment plate 303 is located in the motion cavity 300, and the other end is located in the sampling sleeve 100, and the bottom of the adjustment plate 303 is docked with the push block 302a. The other end of the adjustment plate 303 passes through the inner wall of the sampling sleeve 100 and is located below the push end 101. A blocking ball 303a is fixedly arranged on the other end of the adjustment plate 303, and the blocking ball 303a is docked with the blowing port 101a.

[0045] A tension spring 201a is fixedly arranged on the top of the cleaning end 201, and the other end of the tension spring 201a is fixedly connected to the bottom of the pushing end 101. The tension spring 201a can ensure that the cleaning end 201 has a pulling force to return when it moves. When the cleaning end 201 is about to reach the limit position, it will contact the inclined surface of the starting block 401. When the cleaning end 201 finally moves to the maximum extent, the starting block 401 has also moved horizontally. The movement of the starting block 401 drives the transmission plate 302 to move accordingly, pushing the adjustment plate 303 to rotate under the action of the torque. The blocking ball 303a leaves the blowing port 101a under the rotation of the adjustment plate 303. At this time, the blocking ball 303a can no longer provide a sealing function, and the compressed air will escape from the blowing port 101a. The cleaning end 201 itself is elastically connected to the bottom of the pushing end 101. Without the push of the compressed air, the cleaning end 201 will reset. During the resetting process, the cleaning end 201 will come into contact with the compressed air again. The compressed air can not only play the role of blowing away dust normally, but also clean the cleaning end 201.

[0046] Example 3

[0047] Reference Figures 1 to 6 This embodiment is based on the previous embodiment, and is different from the previous embodiment in that:

[0048] An air chamber 402 is fixedly provided at the top of the air pressure module 400, and an air pressure hole 402a is fixedly provided at the top of the air chamber 402. A sliding channel 403 is fixedly provided on the inner wall of the air pressure module 400. An extension rod 401a is fixedly provided at the end of the start block 401, and a piston 401a-1 is fixedly provided at the other end of the extension rod 401a. The sliding channel 403 itself is connected to the sealing block 301, so the piston 401a-1 can slide along the sliding channel 403.

[0049] A pressure regulating channel 303b is provided on the inner wall of the air chamber 402, and the pressure regulating channel 303b is connected with the sliding channel 403. An adjusting block 402b-1 is also elastically provided on the inner wall of the pressure regulating channel 303b. The bottom of the adjusting block 402b-1 is located in the sliding channel 403 and the bottom of the adjusting block 402b-1 is a triangular inclined surface.

[0050] When the start block 401 starts to move, the piston 401a-1 starts to follow and move horizontally, and then pushes the bottom of the regulating block 402b-1 to make the regulating block 402b-1 rise. The process at this time is to ensure that the movement of the piston 401a-1 is not disturbed. After the piston 401a-1 has finished moving, the regulating block 402b-1 continues to drop back to its original position under the action of elastic force. When the start block 401 starts to reset, the reverse torque of the regulating plate 303 itself is dominant at this time, and the regulating plate 303 slowly drives the push block 302a, the transmission plate 302, and the start block 401 to move horizontally in the opposite direction. When the piston 401a-1 contacts the inclined surface at the bottom of the regulating block 402b-1 again, the movement of the piston 401a-1 needs to overcome the air pressure in the pressure regulating channel 303b, because the air pressure hole 402a itself is very small. Therefore, the gas in the pressure regulating channel 303b is discharged very slowly, and the movement of the piston 401a-1 will also be very slow. This set of processes ensures that the adjustment plate 303 and the blocking ball 303a are reset slowly, ensuring that the blocking ball 303a will return to the position of the air port 101a to block the compressed air after it is completely purged, preparing for the next purge.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A gas-guided recoil mechanism, characterized in that: include, A sampling sleeve (100), comprising a pushing end (101) located at the top of the inner wall of the sampling sleeve (100); A conveying rod (200) fixedly arranged at the bottom of the pushing end head (101), and a cleaning end head (201) elastically connected to the bottom of the pushing end head (101); The bottom of the pushing end head (101) is provided with an air blowing port (101a), and the cleaning end head (201) is located below the air blowing port (101a).

2. The gas-operated recoil mechanism according to claim 1, characterized in that: An air delivery channel (101b) is fixedly provided on the inner wall of the pushing end head (101), and the air blowing port (101a) is connected through the air delivery channel (101b).

3. The gas-operated recoil mechanism according to claim 2, characterized in that: The outer wall of the delivery rod (200) is fixedly provided with a vertical thread (202), the cleaning end head (201) slides along the vertical thread (202), the front end of the delivery rod (200) is connected to the inner wall of the cleaning end head (201), and the rear end of the delivery rod (200) is connected to the gas delivery channel (101b).

4. The gas-operated recoil mechanism according to claim 3, characterized in that: A tension spring (201a) is fixedly arranged on the top of the cleaning end (201), and the other end of the tension spring (201a) is fixedly connected to the bottom of the pushing end (101). A stirring plate (201b) is fixedly arranged on the bottom of the cleaning end (201), and the stirring plate (201b) is in contact with the inner wall of the sampling sleeve (100).

5. A purge assist device, characterized in that: The invention comprises the gas-guided recoil mechanism according to claim 4, and: A moving cavity (300) is provided in the sampling sleeve (100), a sealing block (301) fixed at the bottom of the moving cavity (300), a transmission plate (302) sliding along the inner wall of the sealing block (301), and an adjustment plate (303) torsionally connected to the inner wall of the sampling sleeve (100) and located above the transmission plate (302).

6. The purge assist device according to claim 5, characterized in that: The air pressure module (400) is fixedly mounted on the outer wall of the sampling sleeve (100), and a starting block (401) is slidably embedded in the inner wall of the sampling sleeve (100).

7. The purge assist device according to claim 6, characterized in that: The sealing block (301) is fixedly provided with a docking groove (301a), the starting block (401) passes through the outer wall of the sampling sleeve (100) and the sealing block (301), the bottom of the transmission plate (302) is fixedly connected to the starting block (401), and the starting block (401) slides in the docking groove (301a).

8. The purge assist device according to claim 7, characterized in that: A push block (302a) is fixedly arranged on the top of the transmission plate (302), and the bottom of the adjustment plate (303) is connected to the push block (302a). The other end of the adjustment plate (303) passes through the inner wall of the sampling sleeve (100) and is located below the pushing end (101).

9. The purge assist device according to claim 8, characterized in that: A sealing ball (303a) is fixedly provided at the other end of the regulating plate (303), and the sealing ball (303a) is connected to the blowing port (101a). An air chamber (402) is fixedly provided at the top of the air pressure module (400), and an air pressure hole (402a) is fixedly provided at the top of the air chamber (402). A sliding channel (403) is fixedly provided on the inner wall of the air pressure module (400), and a pressure regulating channel (402b) is provided on the inner wall of the air chamber (402), and the pressure regulating channel (402b) is connected to the sliding channel (403).

10. The purge assist device according to claim 9, characterized in that: An adjusting block (402b-1) is elastically provided on the inner wall of the pressure regulating channel (402b); the bottom of the adjusting block (402b-1) is located in the sliding channel (403); an extension rod (401a) is fixedly provided at the end of the starting block (401); a piston (401a-1) is fixedly provided at the other end of the extension rod (401a); the sliding channel (403) is connected to the sealing block (301); and the piston (401a-1) slides along the sliding channel (403).

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