Scald-proof silencer for pump tail exhaust

Abstract

The utility model relates to the technical field of vacuum pumps, in particular to a pump tail exhaust anti-scald silencer which comprises a pipe body and a tail cover, and the right side of the tail cover is fixedly connected with a right protecting cover. Through cooperation of the first connecting pipe, the second connecting pipe, the gas inlet pipe, the gas exhaust pipe, the first partition plate, the second partition plate, the first gas exhaust through pipe and the second gas exhaust through pipe, the gas exhaust pipe has the advantages of being small in size, simple in structure, and easy and convenient to install and maintain, and gas is conveyed to the inner cavity of the pipe body through the first connecting pipe, the gas inlet pipe and the first gas exhaust through pipe; at the moment, the gas is located in a first buffer chamber formed by the second partition plate and the tail cover, then the gas enters a second buffer chamber formed by the second partition plate and the first partition plate, and then the gas enters a third buffer chamber formed by the first partition plate and the end cover through a second exhaust through pipe; gas subjected to multiple buffering is exhausted out of the pipe body through the exhaust pipe, and after a silencer is additionally arranged at the tail of the pump, the noise value can be reduced to 30% or below of the original value.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pumps, in particular to a silencer with anti-scald function at the pump tail exhaust. Background Technique

[0002] A vacuum pump refers to a device or equipment that uses mechanical, physical, chemical, or physical-chemical methods to evacuate the container to be pumped to obtain a vacuum. Currently, to suppress the airflow emission noise of the vacuum pump, a silencer needs to be installed at the exhaust end of the vacuum pump.

[0003] After retrieval, the publication number is CN218971428U, and the name is a silencer for a vacuum pump, including an inner cylinder. Through research and analysis, it is found that although it has the advantages of significantly reducing the noise generated during the operation of the vacuum pump without the need to set sound insulation cotton during use, to a certain extent, there are still the following disadvantages.

[0004] For example, using multi-stage throttling and pressure reduction, due to its complex structure, large weight, and difficult maintenance, its application range is limited, and it does not have an anti-scald function, and the silencer housing cannot be isolated. When a staff member accidentally comes into contact with the silencer, it is easy to cause scalding, thus increasing potential safety hazards. To solve the above technical problems, we have designed a silencer with anti-scald function at the pump tail exhaust. Content of the Utility Model

[0005] The purpose of the utility model is to provide a silencer with anti-scald function at the pump tail exhaust, which has the advantages of small volume, simple structure, convenient installation and maintenance, and has an anti-scald function, and solves the problems that the existing silencer has a complex structure, large weight, difficult maintenance during use, and cannot isolate the surface of the housing, resulting in easy scalding of maintenance personnel.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a silencer with anti-scald function at the pump tail exhaust, including a pipe body and a tail cover. A right protective cover is fixedly connected to the right side of the tail cover. A heat insulation net cylinder is fixedly connected to the left side of the inner cavity of the right protective cover. The left side of the pipe body is bolted to a flange, and the left side of the flange is bolted to an end cover. A first connecting pipe and a second connecting pipe are respectively communicated with the left side of the end cover and the top of the right side of the tail cover. An air inlet pipe is fixedly connected to the inner cavity of the first connecting pipe, and an exhaust pipe is fixedly connected to the inner cavity of the second connecting pipe. A first partition plate and a second partition plate are respectively fixedly sleeved on the surface of the air inlet pipe. The right side of the air inlet pipe is communicated with a first exhaust through pipe. The bottom of the left side of the first partition plate is fixedly connected through a penetration with a second exhaust through pipe. A support mechanism is bolted to the bottom of the right protective cover. The support mechanism includes a cross plate, a bracket is riveted to the bottom of the cross plate, and a turntable is movably connected to the inner cavity of the bracket through a bearing.

[0007] Preferably, a horizontal pipe is riveted to the right side of the turntable. A cross bar is movably connected to the inner cavity of the horizontal pipe. A support block is riveted to the right end of the cross bar. A limiting groove is formed in the front side of the turntable. The top of the front side of the bracket penetrates and is threadedly connected with a limiting bolt. The rear end of the limiting bolt extends into the inner cavity of the limiting groove.

[0008] Preferably, the number of the limiting grooves is several, and the limiting grooves are arranged in a surrounding manner.

[0009] Preferably, a positioning bolt is threadedly connected to the right side of the front side of the horizontal pipe, and the rear end of the positioning bolt contacts the cross bar.

[0010] Preferably, a left protective cover is connected between the flange and the end cover by bolts, and the left side of the top of the cross plate is connected to the left protective cover by bolts.

[0011] Preferably, a clamping block is fixedly connected to the right side of the bottom of the cross plate, and the left side of the tail cover is fixedly connected to the pipe body.

[0012] Preferably, the left end of the exhaust pipe sequentially penetrates through the second partition plate and the first partition plate. The right side of the intake pipe penetrates into the inner cavity of the pipe body. A sealing ring is arranged between the end cover and the flange.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. Through the cooperation of the first connecting pipe, the second connecting pipe, the intake pipe, the exhaust pipe, the first partition plate, the second partition plate, the first exhaust through pipe and the second exhaust through pipe, the present utility model has the advantages of small volume, simple structure, convenient installation and maintenance. The gas is conveyed into the inner cavity of the pipe body through the first connecting pipe, the intake pipe and the first exhaust through pipe. At this time, the gas is located in the first buffer chamber formed by the second partition plate and the tail cover, and then the gas enters the second buffer chamber formed by the second partition plate and the first partition plate. Subsequently, the gas enters the third buffer chamber formed by the first partition plate and the end cover through the second exhaust through pipe. The gas after multiple buffering is discharged to the outside of the pipe body through the exhaust pipe. After installing a silencer at the pump tail, the noise value can be reduced to less than 30% of the original value.

[0015] 2. Through the cooperation of the right protective cover, the anti-scalding net cylinder and the flange, the present utility model has the function of preventing scalding. The right protective cover is installed on the right side of the tail cover. At this time, the anti-scalding net cylinder is located on the surface of the pipe body. Under the action of the anti-scalding net cylinder, the pipe body can be isolated, so that the maintenance personnel will not contact the pipe body, thereby avoiding the occurrence of scalding phenomena. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front cross-sectional view of the structure of the present utility model;

[0017] Figure 2 is a three-dimensional view of the structure of the present utility model;

[0018] Figure 3 This is the three-dimensional bottom-up view of the structure of the present utility model;

[0019] Figure 4 This is the three-dimensional view of the support mechanism of the present utility model;

[0020] Figure 5 This is the three-dimensional view of the partial structure of the present utility model.

[0021] In the figure: 1, pipe body; 2, end cap; 3, right protective cover; 4, anti-scald net cylinder; 5, flange; 6, end cover; 7, first connecting pipe; 8, second connecting pipe; 9, intake pipe; 10, exhaust pipe; 11, first partition; 12, second partition; 13, first exhaust through pipe; 14, second exhaust through pipe; 15, support mechanism; 16, cross plate; 17, bracket; 18, turntable; 19, cross pipe; 20, cross bar; 21, support block; 22, limit groove; 23, limit bolt; 24, positioning bolt; 25, left protective cover; 26, clamping block; 27, sealing ring. Specific embodiments

[0022] Please refer to Figures 1 - 5 , a pump tail exhaust anti-scald silencer, including a pipe body 1 and an end cap 2. A right protective cover 3 is fixedly connected to the right side of the end cap 2. An anti-scald net cylinder 4 is fixedly connected to the left side of the inner cavity of the right protective cover 3. The left side of the pipe body 1 is bolted with a flange 5. The left side of the flange 5 is bolted with an end cover 6. A first connecting pipe 7 and a second connecting pipe 8 are respectively communicated with the top of the right side of the left side of the end cover 6 and the right side of the end cap 2. An intake pipe 9 is fixedly connected to the inner cavity of the first connecting pipe 7. An exhaust pipe 10 is fixedly connected to the inner cavity of the second connecting pipe 8. A first partition 11 and a second partition 12 are respectively fixedly sleeved on the surface of the intake pipe 9. The right side of the intake pipe 9 is communicated with a first exhaust through pipe 13. The bottom of the left side of the first partition 11 is fixedly connected through penetration with a second exhaust through pipe 14. The bottom of the right protective cover 3 is bolted with a support mechanism 15. The support mechanism 15 includes a cross plate 16. A bracket 17 is riveted to the bottom of the cross plate 16. The inner cavity of the bracket 17 is movably connected with a turntable 18 through a bearing.

[0023] Please refer to Figure 3 and Figure 4 , a cross pipe 19 is riveted to the right side of the turntable 18. A cross bar 20 is movably connected to the inner cavity of the cross pipe 19. A support block 21 is riveted to the right end of the cross bar 20. A limit groove 22 is opened on the front side of the turntable 18. The top of the front side of the bracket 17 is threadedly connected through penetration with a limit bolt 23. By providing the limit bolt 23, the turntable 18 can be limited and fixed so that it will not rotate on its own. The rear end of the limit bolt 23 extends into the inner cavity of the limit groove 22.

[0024] Please refer to Figure 5, the number of the limiting grooves 22 is several, and the limiting grooves 22 are arranged in a surrounding manner.

[0025] Please refer to Figure 4 , a positioning bolt 24 is threadedly connected through the right side of the front side of the horizontal pipe 19. By providing the positioning bolt 24, the cross bar 20 can be limited and fixed, so that it will not displace during the support process. The rear end of the positioning bolt 24 is in contact with the cross bar 20.

[0026] Please refer to Figure 1 , a left protective cover 25 is bolted between the flange 5 and the end cover 6. The left side of the top of the horizontal plate 16 is connected to the left protective cover 25 by bolts.

[0027] Please refer to Figure 3 , a clamping block 26 is fixedly connected to the right side of the bottom of the horizontal plate 16. By providing the clamping block 26, the horizontal pipe 19 can be clamped and fixed during the transportation of the pipe body 1. The left side of the end cap 2 is fixedly connected to the pipe body 1.

[0028] Please refer to Figure 1 , the left end of the exhaust pipe 10 sequentially penetrates through the second partition plate 12 and the first partition plate 11, and the right side of the intake pipe 9 penetrates into the inner cavity of the pipe body 1. A sealing ring 27 is arranged between the end cover 6 and the flange 5. By providing the sealing ring 27, the sealing performance between the flange 5 and the end cover 6 is improved, making it not prone to gas leakage.

[0029] In use, connect the first connecting pipe 7 to the exhaust pipe of the vacuum pump. When the pipe body 1 is used vertically, loosen the positioning bolt 24 and pull the cross bar 20. The cross bar 20 drives the support block 21 to move, and the support block 21 contacts the ground, thereby providing auxiliary support for the pipe body 1. When the pipe body 1 is used horizontally, loosen the limit bolt 23, then rotate the turntable 18 by 90 degrees. After the rotation is completed, tighten the limit bolt 23 again so that the rear end of the limit bolt 23 extends into the inner cavity of the limit groove 22, thereby limiting and fixing the horizontal pipe 19 and the turntable 18. At this time, the direction of the support block 21 is changed so that it can provide auxiliary support for the horizontally used pipe body 1. During the operation of the vacuum pump, gas is transported to the inner cavity of the pipe body 1 through the first connecting pipe 7, the intake pipe 9, and the first exhaust pipe 13. At this time, the gas is located in the first buffer chamber formed by the second partition plate 12 and the end cover 2. Then the gas enters the second buffer chamber formed by the second partition plate 12 and the first partition plate 11. Subsequently, the gas enters the third buffer chamber formed by the first partition plate 11 and the end cover 6 through the second exhaust pipe 14. The gas after multiple buffering is discharged to the outside of the pipe body 1 through the exhaust pipe 10. After installing a silencer, the noise value can be reduced to less than 30% of the original value. Under the action of the anti-scald net cylinder 4, the pipe body 1 can be isolated so that the maintenance personnel will not contact the pipe body 1, thereby avoiding scalding. When it is necessary to disassemble and repair the parts, rotate the bolts on the surface of the end cover 6, and then remove the end cover 6. The end cover 6 drives the first connecting pipe 7 and the intake pipe 9 to move to the left. The intake pipe 9 drives the first partition plate 11, the second partition plate 12, and the second exhaust pipe 14 to move into the interior of the pipe body 1, and then the maintenance operation can be started.

[0030] In summary, for the tail exhaust anti-scald type silencer of the pump, through the cooperation of the first connecting pipe 7, the second connecting pipe 8, the intake pipe 9, the exhaust pipe 10, the first partition plate 11, the second partition plate 12, the first exhaust pipe 13, the second exhaust pipe 14, the right guard cover 3, the anti-scald net cylinder 4, and the flange 5, it solves the problems that the existing silencer is complex in structure, heavy in weight, difficult to overhaul during use, and cannot isolate the surface of the housing, resulting in easy scalding of maintenance personnel.

Claims

1. A pump tail discharge anti-scalding type silencer, comprising a pipe body (1) and a tail cover (2), characterized in that: The right side of the tail cover (2) is fixedly connected to a right protective cover (3), the left side of the inner cavity of the right protective cover (3) is fixedly connected to an anti-scalding mesh tube (4), the left side of the tube body (1) is connected to a flange (5) by bolts, the left side of the flange (5) is connected to an end cover (6) by bolts, the left side of the end cover (6) and the top of the right side of the tail cover (2) are respectively connected to a first connecting pipe (7) and a second connecting pipe (8), the inner cavity of the first connecting pipe (7) is fixedly connected to an air intake pipe (9), and the inner cavity of the second connecting pipe (8) is fixedly connected to an exhaust pipe (10). The surface of the air intake pipe (9) is respectively fixedly sleeved with a first partition plate (11) and a second partition plate (12); the right side of the air intake pipe (9) is connected to a first exhaust pipe (13); the bottom of the left side of the first partition plate (11) is penetrated and fixedly connected to a second exhaust pipe (14); the bottom of the right protective cover (3) is connected to a supporting mechanism (15) by bolts; the supporting mechanism (15) includes a transverse plate (16); the bottom of the transverse plate (16) is riveted with a bracket (17); the inner cavity of the bracket (17) is movably connected to a turntable (18) via a bearing.

2. A pump tail discharge anti-scalding muffler according to claim 1, characterized in that: A transverse tube (19) is riveted on the right side of the turntable (18), a transverse rod (20) is movably connected to the inner cavity of the transverse tube (19), a support block (21) is riveted to the right end of the transverse rod (20), a limiting groove (22) is provided on the front side of the turntable (18), a limiting bolt (23) is threadedly connected to the top of the front side of the bracket (17), and the rear end of the limiting bolt (23) extends to the inner cavity of the limiting groove (22).

3. A pump tail discharge anti-scalding muffler according to claim 2, characterized in that: The number of the limiting grooves (22) is several, and the limiting grooves (22) are arranged in a surrounding manner.

4. The pump tail discharge anti-scalding muffler according to claim 2 is characterized in that: A positioning bolt (24) is threadedly connected through the right side of the front side of the transverse tube (19), and the rear end of the positioning bolt (24) is in contact with the transverse rod (20).

5. The pump tail discharge anti-scalding muffler according to claim 1 is characterized in that: A left protective cover (25) is connected between the flange (5) and the end cover (6) by bolts, and the left side of the top of the transverse plate (16) is connected to the left protective cover (25) by bolts.

6. The pump tail discharge anti-scalding muffler according to claim 1, characterized in that: A clamping block (26) is fixedly connected to the right side of the bottom of the transverse plate (16), and the left side of the tail cover (2) is fixedly connected to the tube body (1).

7. The pump tail discharge anti-scalding muffler according to claim 1, characterized in that: The left end of the exhaust pipe (10) passes through the second partition plate (12) and the first partition plate (11) in sequence, the right side of the intake pipe (9) passes through the inner cavity of the tube body (1), and a sealing ring (27) is provided between the end cover (6) and the flange (5).

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