Sealing device for gas compressor

Abstract

The utility model provides a sealing device for a gas compressor, which comprises a gas compressor body, a sealing connecting component is arranged between a gas inlet pipe and a connecting pipe, and an extrusion component is arranged on the upper side in the sealing connecting component. In the process, a part of air in a connecting pipe and an air inlet pipe conveniently enters a second lower annular groove and a second upper annular groove through a through hole, so that a sealing ring adsorbs moisture in the air to generate certain expansion deformation, and the sealing effect is improved. And when the adjusting screw rod is rotated forwards, the extrusion ring can move downwards to extrude the sealing ring to enable the sealing ring to deform, so that the sealing performance of the sealing ring is further improved, and the situation of air leakage at the joint of the first connecting flange and the second connecting flange is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gas compressor sealing, in particular to a sealing device for a gas compressor. Background Art

[0002] A gas compressor is a power device that converts mechanical energy into gas pressure energy. It is often used to provide gas power for pneumatic tools. It is also commonly used to pressurize oxygen, hydrogen, ammonia, natural gas, coke oven gas, inert gas and other media in the petrochemical, drilling, metallurgical and other industries.

[0003] The gas compressor in the prior art is provided with a sealing structure at its pipeline connection. Commonly used sealing structure materials include asbestos fabric, carbon fiber, rubber, flexible graphite and engineering plastics, but such seals are mostly single structural layers. After being used for a period of time, they are prone to serious deformation, thereby affecting the sealing effect of the pipeline connection and having poor practicality. Utility Model Content

[0004] The purpose of the utility model is to provide a sealing device for a gas compressor to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A sealing device for a gas compressor comprises a gas compressor body, an intake pipe and a connecting pipe, wherein a connecting pipe is arranged on the upper side of the right end surface of the gas compressor body, an intake pipe is fixedly connected to the lower side of the connecting pipe, a sealing connection assembly is arranged between the intake pipe and the connecting pipe, and the sealing connection assembly is used to improve the sealing of the connection between the intake pipe and the connecting pipe, an extrusion assembly is arranged on the upper side inside the sealing connection assembly, and the extrusion assembly is used to further improve the sealing of the sealing connection assembly.

[0007] Preferably, the sealing connection assembly includes a first connecting flange, a sealing ring, a sealing ring, a second connecting flange, a first lower annular groove, a second lower annular groove and fixing bolts. The lower end of the connecting pipe is provided with a first connecting flange, the upper end of the intake pipe is provided with a second connecting flange, the upper end surface of the second connecting flange is provided with a first lower annular groove, a sealing ring is installed inside the first lower annular groove, a second lower annular groove is opened inside the first lower annular groove, a sealing ring is installed inside the second lower annular groove, and fixing bolts are installed on the left and right sides and the front and rear sides of the first connecting flange and the second connecting flange.

[0008] Preferably, a first upper annular groove is provided on the lower end surface of the first connecting flange, and both the first upper annular groove and the first lower annular groove match the sealing ring, and a second upper annular groove is provided on the inner side of the first upper annular groove, and both the second upper annular groove and the second lower annular groove match the sealing ring.

[0009] Preferably, the extrusion assembly includes an adjusting screw, an extrusion ring and a hexagonal turntable, and the adjusting screws are symmetrically installed on the left and right sides and the front and back sides inside the first connecting flange. A hexagonal turntable is provided at the upper end of the adjusting screw, and an extrusion ring is installed on the lower side of the adjusting screw.

[0010] Preferably, limit covers are symmetrically installed on the left and right sides and the front and rear sides of the upper end surface of the extrusion ring, and a follower plate is arranged at the lower end of the adjusting screw, and the follower plate is circular in shape.

[0011] Preferably, through holes are provided on the lower side of the connecting pipe and the upper side of the intake pipe, and the through holes are respectively connected to the second lower annular groove and the second upper annular groove, and the sealing ring is made of an O-ring, and the sealing ring is made of water-swellable rubber.

[0012] Preferably, the lower end surface of the first connecting flange is symmetrically provided with limiting holes on both sides, and the upper end surface of the second connecting flange is symmetrically provided with limiting blocks on both sides, and the limiting blocks match the limiting holes.

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

[0014] 1. The device makes the sealing performance between the first connecting flange and the second connecting flange better by installing the sealing ring and the sealing ring respectively. In this process, the through hole facilitates a part of the air inside the connecting pipe and the air inlet pipe to enter the second lower annular groove and the second upper annular groove, so that the sealing ring inside the second lower annular groove and the second upper annular groove absorbs moisture in the air to produce a certain expansion deformation, so that the expanded and deformed sealing ring fills the second upper annular groove and the second lower annular groove, thereby further improving the sealing performance of the sealing ring;

[0015] 2. When the adjusting screw of the device rotates forward, the extrusion ring can move downward to extrude the sealing ring to deform it, and the deformed sealing ring will fill the gap between the first lower annular groove and the first upper annular groove, thereby further improving the sealing performance of the sealing ring, thereby ensuring the sealing performance of the connection between the first connecting flange and the second connecting flange, and having good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0017] Figure 2This is a structural diagram of the first connecting flange and the second connecting flange in the utility model after being disassembled and separated;

[0018] Figure 3 It is a front cross-sectional view of the sealing connection component and the extrusion component in the utility model;

[0019] Figure 4 This is a bottom view of the first connecting flange in the utility model;

[0020] Figure 5 It is a structural diagram of the extrusion component in the utility model;

[0021] Figure 6 for Figure 3 A is an enlarged view of the middle image.

[0022] In the figure: 1. gas compressor body; 2. air inlet pipe; 3. sealing connection assembly; 31. first connecting flange; 32. sealing ring; 33. sealing ring; 34. second connecting flange; 35. first lower annular groove; 36. second lower annular groove; 37. fixing bolt; 38. limiting hole; 39. first upper annular groove; 311. second upper annular groove; 312. through hole; 313. limiting block; 4. extrusion assembly; 41. adjusting screw; 42. extrusion ring; 43. limiting cover; 44. hexagonal swivel; 45. follower plate; 5. connecting pipe. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-6 , the utility model provides a technical solution:

[0025] Embodiment 1:

[0026] A sealing device for a gas compressor comprises a gas compressor body 1, an air intake pipe 2 and a connecting pipe 5. A connecting pipe 5 is arranged on the upper side of the right end surface of the gas compressor body 1. The connecting pipe 5 is connected to a first connecting flange 31 by welding. The connecting pipe 5 will guide the compressed air into the air intake pipe 2. An air intake pipe 2 is fixedly connected below the connecting pipe 5. The air intake pipe 2 is connected to a second connecting flange 34 by welding. The air intake pipe 2 will guide the compressed air into an air storage tank inside the gas compressor body 1. Since the internal detailed structure and working principle of the gas compressor body 1 are relatively mature technologies in the prior art, they will not be described in detail here. A sealing connection component 3 is arranged between the air intake pipe 2 and the connecting pipe 5, and the sealing connection component 3 is used to improve the sealing performance of the connection between the air intake pipe 2 and the connecting pipe 5. An extrusion component 4 is arranged on the upper side of the sealing connection component 3, and the extrusion component 4 is used to further improve the sealing performance of the sealing connection component 3.

[0027] The sealing connection assembly 3 includes a first connecting flange 31, a sealing ring 32, a sealing ring 33, a second connecting flange 34, a first lower annular groove 35, a second lower annular groove 36 and a fixing bolt 37. The lower end of the connecting pipe 5 is provided with a first connecting flange 31, and the upper end of the intake pipe 2 is provided with a second connecting flange 34. The first connecting flange 31 and the second connecting flange 34 are convenient for the installer to connect and fix the connecting pipe 5 and the intake pipe 2. The upper end surface of the second connecting flange 34 is provided with a first lower annular groove 35. The first lower annular groove 35 facilitates the sealing ring 33 to be embedded in the upper end surface of the second connecting flange 34. The sealing ring 33 is installed inside the first lower annular groove 35. The sealing ring 33 is made of an O-ring. The sealing ring 33 made of an O-ring can fix the first connecting A secondary seal is performed at the connection between the connecting flange 31 and the second connecting flange 34. A second lower annular groove 36 is opened inside the first lower annular groove 35. The second lower annular groove 36 facilitates the sealing ring 32 to be embedded in the upper end surface of the second connecting flange 34. A sealing ring 32 is installed inside the second lower annular groove 36. The sealing ring 32 is made of water-swellable rubber. The sealing ring 32 made of water-swellable rubber can not only perform a primary seal on the connection between the first connecting flange 31 and the second connecting flange 34, but also has the ability to expand by hygroscopicity. Fixing bolts 37 are installed on the left and right sides and the front and rear sides of the first connecting flange 31 and the second connecting flange 34. The fixing bolts 37 facilitate the installer to fix the first connecting flange 31 and the second connecting flange 34.

[0028] A first upper annular groove 39 is provided on the lower end surface of the first connecting flange 31, and the first upper annular groove 39 and the first lower annular groove 35 both match the sealing ring 33. The first upper annular groove 39 facilitates the sealing ring 33 to be embedded in the lower end surface of the first connecting flange 31. A second upper annular groove 311 is provided on the inner side of the first upper annular groove 39, and the second upper annular groove 311 and the second lower annular groove 36 both match the sealing ring 32. The second upper annular groove 311 facilitates the sealing ring 32 to be embedded in the lower end surface of the first connecting flange 31.

[0029] A through hole 312 is provided on the lower side of the connecting pipe 5 and the upper side of the intake pipe 2, and the through hole 312 is respectively connected to the second lower annular groove 36 and the second upper annular groove 311. The through hole 312 facilitates a part of the air inside the connecting pipe 5 and the intake pipe 2 to enter the second lower annular groove 36 and the second upper annular groove 311, so that the sealing ring 32 inside the second lower annular groove 36 and the second upper annular groove 311 absorbs moisture in the air to expand and deform. Limiting holes 38 are symmetrically provided on the left and right sides of the lower end surface of the first connecting flange 31, and limiting blocks 313 are symmetrically provided on the left and right sides of the upper end surface of the second connecting flange 34. The limiting blocks 313 are connected to the second connecting flange 34 by welding, and the limiting blocks 313 match the limiting holes 38. The matching limiting blocks 313 and limiting holes 38 prevent the first connecting flange 31 and the second connecting flange 34 from being misaligned during the connection and installation process.

[0030] Embodiment 2:

[0031] On the basis of the first embodiment, in this embodiment, by rotating the adjusting screw 41 forward, the extrusion ring 42 can be moved downward to extrude the sealing ring 33 to deform it, and the deformed sealing ring 33 will fill the gap between the first lower annular groove 35 and the first upper annular groove 39, thereby further improving the sealing performance of the sealing ring 33, thereby ensuring the sealing performance of the connection between the first connecting flange 31 and the second connecting flange 34.

[0032] The extrusion assembly 4 includes an adjusting screw 41, an extrusion ring 42 and a hexagonal swivel 44. The adjusting screws 41 are symmetrically installed on the left and right sides and the front and back sides of the first connecting flange 31. The adjusting screw 41 is connected to the hexagonal swivel 44 and the follower plate 45 by welding. The adjusting screw 41 supports the extrusion ring 42. Vertical internal threaded through holes are symmetrically opened on the left and right sides and the front and back sides of the upper end surface of the first connecting flange 31, and the vertical internal threaded through holes are meshed with the adjusting screw 41. The vertical internal threaded through holes are connected to the first upper annular groove 39. The vertical internal threaded through holes facilitate the adjustment screw 41 to move up and down inside the first connecting flange 31.

[0033] A hexagonal turntable 44 is provided at the upper end of the adjusting screw 41. The hexagonal turntable 44 is convenient for the staff to rotate and adjust the adjusting screw 41 with the help of an external wrench. An extrusion ring 42 is installed on the lower side of the adjusting screw 41. There is a clearance fit between the extrusion ring 42 and the first upper annular groove 39. The extrusion ring 42 will press the sealing ring 33. Limiting covers 43 are symmetrically installed on the left and right sides and the front and back sides of the upper end surface of the extrusion ring 42. The limiting cover 43 will block and limit the follower plate 45 to prevent the limit cover 43 from loosening and slipping during use. A follower plate 45 is provided at the lower end of the adjusting screw 41, and the follower plate 45 is circular in shape. The circular follower plate 45 facilitates the rotating adjusting screw 41 to drive the extrusion ring 42 to move up and down.

[0034] Working principle: During the use of the gas compressor body 1, the fixing bolts 37 will connect and fix the first connecting flange 31 and the second connecting flange 34, and the matching limit blocks 313 and the limit holes 38 will prevent the first connecting flange 31 and the second connecting flange 34 from being misaligned during the connection and installation process. At the same time, the sealing ring 32 and the sealing ring 33 make the first connecting flange 31 and the second connecting flange 34 more tightly sealed. During this process, the through hole 312 facilitates part of the air inside the connecting pipe 5 and the intake pipe 2 to enter the second lower annular groove 36 and the second upper annular groove 311, so that the sealing ring 32 inside the second lower annular groove 36 and the second upper annular groove 311 can absorb moisture in the air to produce a certain The expansion deformation makes the expanded and deformed sealing ring 32 fill the second upper annular groove 311 and the second lower annular groove 36, so as to further improve the sealing performance of the sealing ring 32. When the staff uses an external wrench to equidistantly rotate the four hexagonal heads 44 clockwise, the four hexagonal heads 44 can respectively drive the four adjusting screws 41 to rotate forward together and drive the extrusion ring 42 to move further downward, so that the extrusion ring 42 squeezes the sealing ring 33 to deform it, and the deformed sealing ring 33 will fill the gap between the first lower annular groove 35 and the first upper annular groove 39, so as to further improve the sealing performance of the sealing ring 33, thereby avoiding air leakage at the connection between the first connecting flange 31 and the second connecting flange 34.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing device for a gas compressor, comprising a gas compressor body (1), an air inlet pipe (2) and a connecting pipe (5), characterized in that: A connecting pipe (5) is arranged on the upper side of the right end surface of the gas compressor body (1); an air intake pipe (2) is fixedly connected to the lower side of the connecting pipe (5); a sealing connection component (3) is arranged between the air intake pipe (2) and the connecting pipe (5); and the sealing connection component (3) is used to improve the sealing performance of the connection between the air intake pipe (2) and the connecting pipe (5); an extrusion component (4) is arranged on the upper side of the interior of the sealing connection component (3); and the extrusion component (4) is used to further improve the sealing performance of the sealing connection component (3).

2. A sealing device for a gas compressor according to claim 1, characterized in that: The sealing connection assembly (3) comprises a first connection flange (31), a sealing ring (32), a sealing ring (33), a second connection flange (34), a first lower annular groove (35), a second lower annular groove (36) and a fixing bolt (37). The first connection flange (31) is arranged at the lower end of the connection pipe (5), and the second connection flange (34) is arranged at the upper end of the intake pipe (2). The upper end surface of the second connection flange (34) is provided with a first lower annular groove (35), a sealing ring (33) is installed inside the first lower annular groove (35), a second lower annular groove (36) is opened inside the first lower annular groove (35), a sealing ring (32) is installed inside the second lower annular groove (36), and fixing bolts (37) are installed on the left and right sides and the front and rear sides of the first connection flange (31) and the second connection flange (34).

3. A sealing device for a gas compressor according to claim 2, characterized in that: A first upper annular groove (39) is formed on the lower end surface of the first connecting flange (31), and the first upper annular groove (39) and the first lower annular groove (35) are both matched with the sealing ring (33); a second upper annular groove (311) is formed on the inner side of the first upper annular groove (39), and the second upper annular groove (311) and the second lower annular groove (36) are both matched with the sealing ring (32).

4. A sealing device for a gas compressor according to claim 2, characterized in that: The extrusion assembly (4) comprises an adjusting screw (41), an extrusion ring (42) and a hexagonal swivel (44); the adjusting screws (41) are symmetrically mounted on the left and right sides and the front and rear sides of the first connecting flange (31); the upper end of the adjusting screw (41) is provided with a hexagonal swivel (44); and the lower side of the adjusting screw (41) is provided with an extrusion ring (42).

5. A sealing device for a gas compressor according to claim 4, characterized in that: The upper end surface of the extrusion ring (42) is symmetrically provided with limit covers (43) on both left and right sides and front and rear sides. The lower end of the adjustment screw rod (41) is provided with a follower plate (45), and the follower plate (45) is circular in shape.

6. A sealing device for a gas compressor according to claim 3, characterized in that: A through hole (312) is provided on the lower side of the connecting pipe (5) and the upper side of the air intake pipe (2), and the through hole (312) is respectively connected to the second lower annular groove (36) and the second upper annular groove (311). The sealing ring (33) is made of an O-ring, and the sealing ring (32) is made of water-swellable rubber.

7. A sealing device for a gas compressor according to claim 2, characterized in that: The lower end surface of the first connecting flange (31) is symmetrically provided with limiting holes (38) on both sides, and the upper end surface of the second connecting flange (34) is symmetrically provided with limiting blocks (313) on both sides, and the limiting blocks (313) match the limiting holes (38).

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