Sealing device for gas compressor

Abstract

The utility model discloses a sealing device for a gas compressor, and belongs to the technical field of sealing devices. The gas compressor comprises a gas compressor body, a sealing connection mechanism and an extrusion mechanism, the sealing connection mechanism comprises a first flange and a second flange, a third mounting groove is formed in the top of the first flange, a first mounting groove is formed in the bottom of the second flange, and first sealing rings are arranged in the first mounting groove and the third mounting groove; symmetrical bearings are arranged on the inner side of the first mounting groove, symmetrical rotating holes are formed in the second flange and communicate with the first mounting groove, the extrusion mechanism comprises rotating rods, the rotating rods are matched in the rotating holes, and one ends of the rotating rods are arranged in the bearings. Through the matching design of the first flange and the second flange and the combination of the linkage structure of the first sealing ring and the arc-shaped extrusion plate, uniform radial pressure can be applied to the sealing rings, and the sealing gap change caused by vibration, temperature change or pressure fluctuation is effectively compensated, so that the gas leakage risk is reduced, and the operation stability of the compressor is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sealing device technical field, concretely is a kind of sealing device for gas compressor. BACKGROUND

[0002] As a kind of widely used in industrial production, refrigeration, air power and many other fields of key equipment, its main function is to compress gas, improve the pressure of gas, to meet the needs of different processes and equipment.In the operation process of gas compressor, sealing performance is crucial, it directly influences the working efficiency of compressor, reliability and safety.

[0003] But sealing ring is susceptible to vibration, temperature, pressure and other factors and is aged, deformed, leading to gas leakage, reduce the working efficiency of compressor. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of sealing device for gas compressor, by the cooperation design of first flange and second flange, the linkage structure of first sealing ring and arc extrusion plate can be applied to the uniform radial pressure of sealing ring, effectively compensate the sealing gap variation caused by vibration, temperature change or pressure fluctuation, to reduce gas leakage risk, improve compressor operation stability, solve the problem that sealing ring is susceptible to vibration, temperature, pressure and other factors and is aged, deformed, leading to gas leakage, reduce the working efficiency of compressor.

[0005] The utility model is realized by the following technical schemes:

[0006] The utility model is a kind of sealing device for gas compressor, including gas compressor body (1), sealing connection mechanism (4) and extrusion mechanism (5), the sealing connection mechanism (4) includes first flange (401) and second flange (402), the top of first flange (401) is equipped with the third installation slot (406), the bottom of second flange (402) is equipped with first installation slot (404), first installation slot (404) and third installation slot (406) are equipped with first sealing ring (403), the inside of first installation slot (404) is equipped with the bearing of relative symmetry, the second flange (402) is equipped with the relative symmetry of rotation hole, the rotation hole is communicated with first installation slot (404), the extrusion mechanism (5) includes rotating rod (501) and bolt (504), rotating rod (501) is cooperated in rotation hole, and one end is arranged in bearing, the one end outside of rotating rod (501) in first installation slot (404) is equipped with external thread, the external thread is cooperated with moving plate (502), the bottom of moving plate (502) is equipped with arc extrusion plate (503), and first sealing ring (403) is located at the inside of arc extrusion plate (503).

[0007] Further, the gas compressor body (1) is respectively provided with an air inlet pipe (2) and a connecting pipe (3), the first flange (401) is arranged at the top of the air inlet pipe (2), the second flange (402) is arranged at the bottom of the connecting pipe (3), and the air inlet pipe (2) and the connecting pipe (3) are connected through the first flange (401) and the second flange (402).

[0008] Further, the air inlet pipe (2) is internally provided with a slot (201), the slot (201) is provided with a second sealing gasket (405), the bottom of the connecting pipe (3) is provided with a pipe (301), the pipe (301) is inserted into the slot (201), and the second sealing gasket (405) is located between the bottom of the slot (201) and the bottom of the pipe (301).

[0009] Further, the top end of the second flange (402) is provided with a through hole, the through hole is in communication with the rotating shaft, one end of the rotating shaft (501) is externally and uniformly provided with a limiting hole (505), and the limiting hole (505) corresponds to the through hole.

[0010] Further, the plug-in pin (504) is inserted into the through hole and one end is inserted into the limiting hole (505) to limit the rotating shaft (501).

[0011] The utility model has the advantages of the following beneficial effects:

[0012] The utility model discloses a first flange and second flange cooperate with each other, and in combination with the linkage structure of the first sealing ring and the arc-shaped extrusion plate, can apply uniform radial pressure to the sealing ring, effectively compensate the sealing gap change caused by vibration, temperature change or pressure fluctuation, thereby reducing the gas leakage risk and improving the compressor operation stability.

[0013] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages mentioned above. DRAWINGS

[0014] Figure 1 It is a gas compressor structure schematic view;

[0015] Figure 2 It is an air inlet pipe and connecting pipe connection place explosion structure schematic view;

[0016] Figure 3 It is a sealing connection mechanism internal structure schematic view;

[0017] Figure 4 It is Figure 3 It is an enlarged structure schematic view of A in the middle

[0018] Figure 5 It is an air inlet pipe structure schematic view

[0019] Figure 6 The structure diagram of the extrusion mechanism.

[0020] In the figure: 1, gas compressor body; 2, gas inlet pipe; 201, slot; 3, connecting pipe; 301, insertion pipe; 4, sealing connection mechanism; 401, first flange; 402, second flange; 403, first sealing ring; 404, first mounting groove; 405, second sealing gasket; 406, third mounting groove; 5, extrusion mechanism; 501, rotating rod; 502, moving plate; 503, arc-shaped extrusion plate; 504, bolt; 505, limiting hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] Please refer to Figures 1-6 The present application provides a technical solution: a sealing device for a gas compressor, which comprises a gas compressor body 1, a sealing connection mechanism 4 and an extrusion mechanism 5. The sealing connection mechanism 4 comprises a first flange 401 and a second flange 402. The top of the first flange 401 is provided with a third mounting groove 406. The bottom of the second flange 402 is provided with a first mounting groove 404. The first mounting groove 404 and the third mounting groove 406 are provided with a first sealing ring 403. The inner side of the first mounting groove 404 is provided with symmetrically arranged bearings. The second flange 402 is provided with symmetrically arranged rotating holes. The rotating holes are in communication with the first mounting groove 404. The extrusion mechanism 5 comprises a rotating rod 501 and a bolt 504. The rotating rod 501 is fitted in the rotating hole and one end of the rotating rod 501 is arranged in the bearing. The outer side of one end of the rotating rod 501 located in the first mounting groove 404 is provided with external threads. The external threads are fitted with a moving plate 502. The bottom end of the moving plate 502 is provided with an arc-shaped extrusion plate 503. The first sealing ring 403 is located on the inner side of the arc-shaped extrusion plate 503.

[0023] The top end of the second flange 402 is provided with a through hole. The through hole is in communication with the rotating hole. The outer side of one end of the rotating rod 501 is uniformly provided with a limiting hole 505. The limiting hole 505 corresponds to the through hole. The bolt 504 is inserted in the through hole and one end of the bolt 504 is inserted in the limiting hole 505 to limit the rotating rod 501.

[0024] Through the cooperation of the first flange 401 and the second flange 402, combined with the linkage structure of the first sealing ring 403 and the arc-shaped extrusion plate 503, uniform radial pressure can be applied to the sealing ring, effectively compensating for the change of the sealing gap caused by vibration, temperature change or pressure fluctuation, thereby reducing the risk of gas leakage and improving the stability of the compressor operation.

[0025] The rotating rod 501 in the extrusion mechanism 5 is threadedly connected with the moving plate 502, and the extrusion degree of the arc-shaped extrusion plate 503 on the first sealing ring 403 can be accurately controlled by rotating the rotating rod 501, which can not only avoid overloading and wear of the sealing ring, but also adjust the sealing pressure according to the actual working condition, thereby prolonging the service life of the sealing element.

[0026] The gas compressor body 1 is respectively provided with an inlet pipe 2 and a connecting pipe 3, the first flange 401 is arranged at the top of the inlet pipe 2, and the second flange 402 is arranged at the bottom of the connecting pipe 3.

[0027] The inlet pipe 2 is internally provided with a slot 201, the slot 201 is provided with a second sealing gasket 405, the bottom of the connecting pipe 3 is provided with a pipe 301, the pipe 301 is inserted into the slot 201, and the second sealing gasket 405 is located between the bottom of the slot 201 and the bottom of the pipe 301.

[0028] The first sealing ring 403 and the second sealing gasket 405 form a double sealing barrier, which respectively acts on the flange connection surface and the axial contact surface of the pipe 301 slot 201, can effectively block the leakage path in different directions, and improves the overall sealing performance.

[0029] The preferred embodiments disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details, nor limit the utility model to the specific implementation described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A sealing device for a gas compressor, comprising a gas compressor body (1), a sealing connecting mechanism (4) and an extrusion mechanism (5), characterized in that: the sealing connecting mechanism (4) comprises a first flange (401) and a second flange (402), a third mounting groove (406) is formed on the top of the first flange (401); a first mounting groove (404) is formed on the bottom of the second flange (402), and a first sealing ring (403) is arranged in the first mounting groove (404) and the third mounting groove (406); symmetrical bearings are arranged on the inner side of the first mounting groove (404), and symmetrical rotating holes are formed on the second flange (402) and communicate with the first mounting groove (404); the extrusion mechanism (5) comprises a rotating rod (501), the rotating rod (501) is fitted in the rotating hole, one end of the rotating rod (501) is arranged in the bearing, an outer thread is arranged on the outer side of one end of the rotating rod (501) located in the first mounting groove (404), a moving plate (502) is fitted on the outer thread, and an arc-shaped extrusion plate (503) is arranged on the bottom end of the moving plate (502); the first sealing ring (403) is located on the inner side of the arc-shaped extrusion plate (503).

2. A seal arrangement for a gas compressor as claimed in claim 1, characterised in that, the gas compressor body (1) is respectively provided with an air inlet pipe (2) and a connecting pipe (3), the first flange (401) is arranged on the top of the air inlet pipe (2), the second flange (402) is arranged on the bottom of the connecting pipe (3), and the air inlet pipe (2) and the connecting pipe (3) are connected through the first flange (401) and the second flange (402).

3. A seal arrangement for a gas compressor as claimed in claim 2, wherein a slot (201) is formed in the inner side of the air inlet pipe (2), a second sealing gasket (405) is arranged in the slot (201), the bottom of the connecting pipe (3) is provided with a pipe (301), the pipe (301) is inserted into the slot (201), and the second sealing gasket (405) is located between the bottom of the slot (201) and the bottom of the pipe (301).

4. A seal arrangement for a gas compressor as claimed in claim 1, wherein a through hole is formed on the top end of the second flange (402), the through hole communicates with the rotating hole, limit holes (505) are uniformly formed on the outer side of one end of the rotating rod (501), and the limit holes (505) correspond to the through hole.

5. A seal arrangement for a gas compressor as claimed in claim 4, wherein a bolt (504) is further arranged, the bolt (504) is inserted into the through hole, and one end of the bolt (504) is inserted into the limit hole (505) to limit the rotating rod (501).

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