Compressor with filler assembly

Abstract

The utility model provides a compressor with a packing assembly. The compressor with the packing assembly comprises a compressor shell, a packing sealing piece is fixedly installed in the compressor shell, a piston rod is inserted in the packing sealing piece, a cooling system is installed outside the compressor shell, a pushing mechanism is arranged in the cooling system, the cooling system comprises a cooling liquid box, and the cooling liquid box is connected with the piston rod. And the cooling liquid tank is fixedly mounted on the surface of the compressor shell. According to the compressor with the packing assembly, when the piston rod is arranged to conduct reciprocating parallel movement to compress air to do work, the piston rod can drive the push rod to move synchronously, and then the push rod drags the piston head to extrude cooling liquid in the cooling liquid groove to flow into the cold flow groove in a spiral surrounding mode. Therefore, friction heat between the surface of the piston rod and the inner wall of the packing sealing piece is taken away, and the automatic circulation cooling effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of compressors, and particularly relates to a compressor with a packing assembly. Background Technique

[0002] A compressor is a driven fluid machine that raises low-pressure gas to high-pressure gas and is the heart of a refrigeration system. Compressors are divided into piston compressors, screw compressors, centrifugal compressors, linear compressors, etc. A piston compressor generally consists of a housing, a motor, a cylinder block, a piston, control equipment, and a cooling system.

[0003] Generally, the piston rod of a piston compressor is equipped with a packing assembly to prevent gas in the cylinder from leaking between the cylinder seat. During the reciprocating parallel movement of the piston rod, its surface will generate frictional heat with the inner ring of the packing assembly, resulting in serious damage to the sealing parts of the inner ring of the packing assembly and affecting the sealing effect. Therefore, existing compressors are equipped with a cooling system. However, the cooling system requires a separate power source from a circulation pump to transport the coolant to flow, increasing the cooling operation cost.

[0004] Therefore, it is necessary to provide a new compressor with a packing assembly to solve the above technical problems. Content of the Utility Model

[0005] The technical problem solved by the utility model is to provide a compressor with a packing assembly that can drive the coolant to circulate and cool down by using the piston rod as a power source.

[0006] To solve the above technical problems, the compressor with a packing assembly provided by the utility model includes: a compressor housing, a packing seal is fixedly installed inside the compressor housing, a piston rod is inserted inside the packing seal, a cooling system is installed outside the compressor housing, and a pushing mechanism is arranged inside the cooling system;

[0007] The cooling system includes a coolant tank, the coolant tank is fixedly installed on the surface of the compressor housing, the bottom of the coolant tank is fixedly connected with a first coolant pipe, one end of the first coolant pipe extends into the compressor housing and is fixedly connected with the compressor housing, the side of the coolant tank is fixedly connected with a second coolant pipe, one end of the second coolant pipe extends into the compressor housing and is fixedly connected with the compressor housing, a coolant groove is opened inside the compressor housing, the coolant groove is communicated with the first coolant pipe, a cold flow groove is opened inside the piston rod, a first hose is connected between the liquid inlet of the cold flow groove and the liquid outlet of the coolant groove, and a second hose is connected between the liquid outlet of the cold flow groove and the liquid inlet of the second coolant pipe;

[0008] The driving mechanism includes a piston head which is slidably arranged inside the coolant tank. A sealing sleeve is sleeved on the surface of the piston head. One side of the piston head is fixedly connected to a push rod, and one end of the push rod is fixedly connected to a connecting rod. One end of the connecting rod is fixedly connected to the surface of the piston rod.

[0009] As a further solution of the present utility model, an annular groove is formed on the surface of the piston head, and an annular clamping block is fixedly connected to the inner wall of the sealing sleeve. The annular clamping block is sleeved in the annular groove.

[0010] As a further solution of the present utility model, an annular baffle is fixed inside the coolant tank. A sealing plug is installed on the surface of the annular baffle. A guide rod is fixedly connected to the surface of the sealing plug. A guide hole is formed on the surface of the annular baffle. One end of the guide rod extends into the guide hole and is fixedly connected to a return spring. One end of the return spring is fixedly connected to the inner wall of the guide hole.

[0011] As a further solution of the present utility model, a convex block is installed on the surface of the sealing plug, and the convex block abuts against the annular hole on the surface of the annular baffle.

[0012] As a further solution of the present utility model, the piston rod and the push rod are arranged in parallel.

[0013] As a further solution of the present utility model, the cold flow channel is arranged in a spiral structure.

[0014] Compared with the related art, the compressor with a packing assembly provided by the present utility model has the following beneficial effects:

[0015] When the piston rod of the present utility model makes a reciprocating parallel movement to compress air and do work, the piston rod can drive the push rod to move synchronously. Then, the push rod drags the piston head to extrude the coolant inside the coolant tank to flow spirally and surroundingly inside the cold flow channel, thereby taking away the frictional heat between the surface of the piston rod and the inner wall of the packing seal, achieving an automatic circulation cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] For the convenience of those skilled in the art to understand, the present utility model will be further described below with reference to the accompanying drawings.

[0017] Figure 1 It is a three-dimensional structure schematic diagram of the overall structure of the compressor with a packing assembly provided by the present utility model;

[0018] Figure 2 It is a schematic diagram of the plane sectional structure of the compressor with a packing assembly provided by the present utility model;

[0019] Figure 3 It is Figure 2 The enlarged structure schematic diagram of part A in

[0020] In the figure: 1. Compressor housing; 101. Packing seal; 102. Piston rod; 2. Coolant tank; 201. First coolant pipe; 202. Second coolant pipe; 203. Coolant groove; 204. Cold flow groove; 205. First hose; 206. Second hose; 3. Piston head; 301. Sealing sleeve; 302. Push rod; 303. Connecting rod; 4. Annular baffle; 401. Sealing plug; 402. Guide rod; 403. Guide hole; 404. Return spring. Detailed implementation manner

[0021] Please refer to Figure 1 , Figure 2 and Figure 3 , wherein, Figure 1 is a three-dimensional schematic diagram of the overall structure of the compressor with a packing assembly of the present utility model; Figure 2 is a schematic diagram of the plane sectional structure of the compressor with a packing assembly of the present utility model; Figure 3 is Figure 2 an enlarged schematic diagram of part A in . The compressor with a packing assembly includes: a compressor housing 1, a packing seal 101 is fixedly installed inside the compressor housing 1, a piston rod 102 is inserted inside the packing seal 101, a cooling system is installed outside the compressor housing 1, and a pushing mechanism is arranged inside the cooling system;

[0022] The cooling system includes a coolant tank 2, the coolant tank 2 is fixedly installed on the surface of the compressor housing 1, a first coolant pipe 201 is fixedly connected to the bottom of the coolant tank 2, one end of the first coolant pipe 201 extends into the compressor housing 1 and is fixedly connected to the compressor housing 1, a second coolant pipe 202 is fixedly connected to the side of the coolant tank 2, one end of the second coolant pipe 202 extends into the compressor housing 1 and is fixedly connected to the compressor housing 1, a coolant groove 203 is opened inside the compressor housing 1, the coolant groove 203 is communicated with the first coolant pipe 201, a cold flow groove 204 is opened inside the piston rod 102, a first hose 205 is connected between the liquid inlet of the cold flow groove 204 and the liquid outlet of the coolant groove 203, and a second hose 206 is connected between the liquid outlet of the cold flow groove 204 and the liquid inlet of the second coolant pipe 202;

[0023] The pushing mechanism includes a piston head 3, the piston head 3 is slidably arranged inside the coolant groove 203, a sealing sleeve 301 is sleeved on the surface of the piston head 3, a push rod 302 is fixedly connected to one side of the piston head 3, one end of the push rod 302 is fixedly connected to a connecting rod 303, and one end of the connecting rod 303 is fixedly connected to the surface of the piston rod 102.

[0024] As Figure 1As shown, an annular groove is formed on the surface of the piston head 3, and an annular clamping block is fixedly connected to the inner wall of the sealing sleeve 301. The annular clamping block is sleeved in the annular groove.

[0025] During the reciprocating parallel movement of the piston head 3, the sealing sleeve 301 will be driven to rub against the inner wall of the coolant tank 203. Therefore, by sleeving the annular clamping block fixed on the inner wall of the sealing sleeve 301 in the annular groove, the use stability of the sealing sleeve 301 can be improved and it can be prevented from falling off.

[0026] As Figure 1 shown, an annular baffle 4 is fixed inside the coolant tank 203. A sealing plug 401 is installed on the surface of the annular baffle 4. A guide rod 402 is fixedly connected to the surface of the sealing plug 401. A guide hole 403 is formed on the surface of the annular baffle 4. One end of the guide rod 402 extends into the guide hole 403 and is fixedly connected to a return spring 404. One end of the return spring 404 is fixedly connected to the inner wall of the guide hole 403.

[0027] When the coolant is pushed, the sealing plug 401 can be pushed open from one side of the annular baffle 4, so that the coolant can flow through the gap between the sealing plug 401 and the inner ring hole of the annular baffle 4 and enter the cooling pipeline. When the sealing plug 401 is not under force and is pushed back, the return spring 404 drags the guide rod 402 to move in the guide hole 403 through reset, and then the guide rod 402 drags the sealing plug 401 to move and fit against one side of the annular baffle 4, blocking and sealing the inner ring hole of the annular baffle 4 to prevent the coolant from flowing back.

[0028] As Figure 1 shown, a convex block is installed on the surface of the sealing plug 401, and the convex block abuts against the inner ring hole on the surface of the annular baffle 4.

[0029] The convex block can make the sealing plug 401 better block the inner ring hole of the annular baffle 4.

[0030] As Figure 1 shown, the piston rod 102 and the push rod 302 are arranged in parallel.

[0031] After the piston rod 102 moves in parallel, the push rod 302 can be kept synchronous.

[0032] As Figure 1 shown, the cold flow tank 204 is arranged in a spiral structure.

[0033] By flowing the coolant in the spiral-structured cold flow tank 204, the residence time of the coolant in the cold flow tank 204 is delayed, which is convenient for the coolant to absorb heat and cool down sufficiently.

[0034] The working principle of the compressor with a packing assembly provided by the present utility model is as follows:

[0035] When the compressed gas is used for working, the piston rod 102 will be pushed to move back and forth in parallel. During the movement, the piston rod 102 will drive the connecting rod 303 to move synchronously. Then, the connecting rod 303 drives the piston head 3 fixed at one end of the push rod 302 to move back and forth in parallel in the coolant tank 203. When the piston head 3 moves toward the annular baffle 4, it will push and squeeze the coolant inside the coolant tank 203, and at the same time seal the liquid outlet at the bottom end of the coolant pipe 201. As a result, the coolant will push the sealing plug 401 to open from one side of the annular baffle 4, and then the coolant will pass through the internal annular hole of the annular baffle 4 and flow into the cold flow tank 204.

[0036] When the piston head 3 moves in the opposite direction toward the annular baffle 4, the sealing plug 401 is reset by the elastic force of the reset spring 404 to seal the annular hole on the surface of the annular baffle 4, and a negative pressure is formed between the piston head 3 and the annular baffle 4. After the piston head 3 moves away from the bottom end of the coolant pipe 201, the suction force generated by the negative pressure draws the coolant inside the coolant tank 2 into the coolant tank 203 through the coolant pipe 201, and refills the space between the annular baffle 4 and the piston head 3, so that the coolant automatically intervenes in the circulation pipeline. Then, when the coolant flows in the cold flow groove 204, it will take away the friction heat between the surface of the piston rod 102 and the inner ring of the packing seal 101, thereby playing a cooling role. Finally, the coolant flows from the outlet of the cold flow groove 204 into the coolant pipe 2 202, and finally flows into the coolant tank 2, forming an automatic circulation cooling effect.

[0037] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0038] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0039] Although embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model, or they can be directly or indirectly applied. In other related technical fields, the scope of the present utility model is defined by the appended claims and their equivalents, and all are similarly included within the scope of the patent protection of the present utility model.

Claims

1. A compressor with a packing assembly, characterized in that: include: A compressor housing, wherein a packing seal is fixedly installed inside the compressor housing, a piston rod is inserted inside the packing seal, a cooling system is installed outside the compressor housing, and a pushing mechanism is arranged inside the cooling system; The cooling system includes a coolant tank, the coolant tank is fixedly mounted on the surface of the compressor housing, a coolant pipe 1 is fixedly connected to the bottom of the coolant tank, one end of the coolant pipe 1 extends into the compressor housing and is fixedly connected to the compressor housing, a coolant pipe 2 is fixedly connected to the side of the coolant tank, one end of the coolant pipe 2 extends into the compressor housing and is fixedly connected to the compressor housing, a coolant tank is provided inside the compressor housing, the coolant tank is communicated with the coolant pipe 1, a cold flow tank is provided inside the piston rod, a hose 1 is connected to the inlet of the cold flow tank and the outlet of the coolant tank, and a hose 2 is connected to the outlet of the cold flow tank and the inlet of the coolant pipe 2; The pushing mechanism includes a piston head, which is slidably arranged inside the coolant tank. A sealing sleeve is provided on the surface of the piston head. A push rod is fixedly connected to one side of the piston head. A connecting rod is fixedly connected to one end of the push rod. One end of the connecting rod is fixedly connected to the surface of the piston rod.

2. The compressor with a packing assembly according to claim 1, characterized in that: An annular groove is provided on the surface of the piston head, an annular clamping block is fixedly connected to the inner wall of the sealing sleeve, and the annular clamping block is sleeved in the annular groove.

3. The compressor with a packing assembly according to claim 1, characterized in that: An annular baffle is fixed inside the cooling liquid tank, a sealing plug is installed on the surface of the annular baffle, a guide rod is fixedly connected to the surface of the sealing plug, a guide hole is opened on the surface of the annular baffle, one end of the guide rod extends into the guide hole and is fixedly connected to a return spring, and one end of the return spring is fixedly connected to the inner wall of the guide hole.

4. The compressor with a packing assembly according to claim 3, characterized in that: A convex block is installed on the surface of the sealing plug, and the convex block is pressed against the ring hole on the surface of the annular baffle.

5. The compressor with a packing assembly according to claim 1, characterized in that: The piston rod and the push rod are arranged in parallel.

6. The compressor with a packing assembly according to claim 1, characterized in that: The cold flow channel is arranged as a spiral structure.

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