Compressor oil cooling device

Abstract

The application relates to a compressor oil cooling device, belonging to the technical field of compressors, which comprises a compressor body and a heat exchanger, a siphon tank is vertically arranged between the compressor body and the heat exchanger, an overflow pipe, a liquid inlet pipe and a liquid outlet pipe are communicated with the siphon tank, the liquid outlet pipe is communicated with the siphon tank at a vertical side wall of the siphon tank, and the other end is communicated with the inside of the heat exchanger; the overflow pipe is communicated with the siphon tank at the bottom of the siphon tank, and the other end is communicated with the inside of a liquid storage tank; one end of the overflow pipe is deeply arranged in the inside of the siphon tank, the vertical height of the end of the overflow pipe arranged in the inside of the siphon tank is higher than the height of the liquid outlet pipe communicated with the siphon tank, the overflow pipe is slidably connected with the siphon tank, an adjusting assembly is arranged between the overflow pipe and the siphon tank, the adjusting assembly is used for driving the one end of the overflow pipe arranged in the inside of the siphon tank to slide along the length direction of the siphon tank, and the application has the effects of adapting to the change of the vertical position of a high-pressure liquid storage tank and guaranteeing the smooth flow of cold working medium in a pipeline.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of compressors, in particular to a compressor oil cooling device. BACKGROUND

[0002] At present, in order to ensure the high efficiency of the compressor, the oil temperature of the compressor lubricating oil needs to be appropriate, and the backflow of the lubricating oil in the high temperature state to the inside of the compressor will affect the operating efficiency of the compressor.

[0003] In the related art, a device for cooling lubricating oil is connected to the compressor, the lubricating oil cooling device comprises a siphon tank, a refrigerant is communicated with the inside of the siphon tank through a pipeline, a first liquid outlet on the siphon tank is communicated with the inside of a heat exchanger, and a second liquid outlet is communicated with the inside of a high pressure liquid storage tank, hot oil discharged from the compressor enters the heat exchanger, and after being cooled by oil cooling, the hot oil is backflowed to the inside of the compressor, so that the lubricating oil is recycled and the temperature of the backflowing oil is reduced. In this way, the oil cooling is achieved by using the thermal siphon effect, and it is necessary to ensure that the sum of the along-path resistance and the local resistance of each pipeline (i.e. the total pressure drop ΔP) does not affect the smooth flow of the refrigerant, that is, the height of the communication part of the high pressure liquid storage tank and the siphon tank and the height of the liquid surface of the liquid storage amount in the siphon tank are in a mutual restrictive relationship, so as to ensure the smooth flow of the cold working medium.

[0004] In the related art, when the vertical position of the high pressure liquid storage tank changes, the position of the communication part of the high pressure liquid storage tank and the siphon pipe needs to be adjusted. SUMMARY

[0005] In order to adapt to the change of the vertical position of the high pressure liquid storage tank and ensure the smooth flow of the cold working medium in the pipeline, the present application provides a compressor oil cooling device.

[0006] The compressor oil cooling device provided by the present application adopts the following technical scheme:

[0007] A compressor oil cooling device, comprising a siphon tank vertically arranged between a heat exchanger and a liquid storage tank, wherein the siphon tank is communicated with an overflow pipe, a liquid inlet pipe and a liquid outlet pipe, the communication part of the liquid inlet pipe and the siphon tank is located at the top of the siphon tank, one end of the liquid outlet pipe is communicated with the siphon tank at the vertical side wall of the siphon tank, and the other end is communicated with the inside of the heat exchanger, one end of the overflow pipe is communicated with the siphon tank at the bottom of the siphon tank, and the other end is communicated with the inside of the liquid storage tank, the end of the overflow pipe deep into the inside of the siphon tank, the vertical height of the end of the overflow pipe in the inside of the siphon tank is higher than the height of the communication part of the liquid outlet pipe and the siphon tank, the overflow pipe and the siphon tank are slidingly connected, an adjusting assembly is arranged between the overflow pipe and the siphon tank, and the adjusting assembly is used to drive the end of the overflow pipe in the inside of the siphon tank to slide along the length direction of the siphon tank.

[0008] By adopting the technical scheme, when the accumulated liquid in the siphon tank is discharged from the overflow pipe to a certain extent, the position height of the overflow pipe communicated with the siphon tank needs to be adjusted when the position of the liquid storage tank changes or the storage amount of the accumulated liquid in the siphon tank needs to be adjusted, and at this time, the overflow pipe directly penetrates from the bottom of the siphon tank to the inside of the siphon tank, the vertical position of the end of the overflow pipe in the siphon tank is directly adjusted by the adjusting assembly, the operation is simple and convenient, and the effect of adapting to the change of the vertical position of the high-pressure liquid storage tank and ensuring the smooth flow of the cold working medium in the pipeline is achieved.

[0009] Optionally, the adjusting assembly comprises a driving disc and a positioning block, the driving disc is rotationally connected to the siphon tank, the rotation axis is the center line of the siphon tank, the overflow pipe is threadedly connected to the driving disc, the overflow pipe penetrates the driving disc, the center line of the overflow pipe coincides with the center line of the driving disc, the positioning block is fixed to the outer wall of the overflow pipe, and a positioning groove is formed in the inner wall of the siphon tank and extends along the length direction of the siphon tank, and the positioning block is located in the positioning groove.

[0010] By adopting the technical scheme, the driving disc is rotated to drive the overflow pipe to rotate, but the positioning block is located in the positioning groove to limit and guide the overflow pipe, so that the overflow pipe moves up and down to adjust the position of the overflow pipe.

[0011] Optionally, the siphon tank is provided with a sealing assembly, the sealing assembly comprises a sealing disc, a guide ring, sealing blocks and a spring, the sealing disc is threadedly connected to the siphon tank, the center line of the sealing disc coincides with the center line of the siphon tank, the overflow pipe penetrates the center line of the sealing disc, the sealing blocks are slidably arranged on the sealing disc and slide along the direction close to or away from the center line of the sealing disc, the guide ring is fixed to the inner wall of the siphon tank, the side wall close to the center line of the sealing disc of the guide ring is obliquely arranged, the oblique direction is arranged along the direction close to the center line of the sealing disc from bottom to top, and the spring is used to apply a force to the sealing blocks in the direction away from the center line of the sealing disc; the sealing blocks are arc-shaped and closely attached to the outer wall of the overflow pipe, the number of the sealing blocks is not less than two, and all the sealing blocks abut each other to surround the outer wall of the overflow pipe.

[0012] By adopting the technical scheme, the overflow pipe is slidably arranged relative to the siphon tank, the sealing assembly is used to seal the sliding position of the overflow pipe relative to the siphon tank to ensure the sealing of the siphon tank, the sealing disc is locked with the siphon tank, the guide ring guides the sealing blocks to move close to the outer wall of the overflow pipe until the sealing blocks closely attach to the outer wall of the overflow pipe, thereby enhancing the sealing of the siphon tank and reducing the exposure of the liquid in the siphon tank and the leakage of the gas pressure.

[0013] Optionally, the side wall close to the guide ring of the sealing block is obliquely arranged, the oblique direction is arranged along the direction close to the center line of the sealing disc from bottom to top, and the sealing block abuts against the guide ring.

[0014] By adopting the technical scheme, the sealing block is also arranged in an inclined shape, thereby achieving the effect of adapting to the guide ring and making the guide of the guide ring to the sealing block more smooth.

[0015] Optionally, the driving disc is rotationally connected with a protective cover, the rotation axis is the center line of the driving disc, the protective cover is located on the side of the driving disc away from the siphon tank, and the protective cover is connected with a booster pipe.

[0016] By adopting the technical scheme, since the overflow pipe is arranged to slide relative to the siphon tank, in order to further ensure the air pressure in the siphon tank, the protective cover is arranged to perform secondary sealing and pressurization at the joint of the siphon tank and the overflow pipe.

[0017] Optionally, the overflow pipe comprises a folded section, the folded section is made of a corrugated pipe material, and the folded section is located in the protective cover.

[0018] By adopting the technical scheme, when the position of the overflow pipe is adjusted, the folded end is correspondingly stretched to be contracted, so that the sliding adjustment of the overflow pipe at the outer end of the siphon tank is performed in the protective cover, and the effect of the protective cover on the secondary sealing and pressure maintaining of the siphon tank is fully exerted.

[0019] Optionally, a plurality of reinforcing rings are fixed on the outer wall of the overflow pipe, the adjacent reinforcing rings are arranged at intervals along the length direction of the folded section, and the reinforcing rings are distributed only on the folded section.

[0020] By adopting the technical scheme, since the protective cover needs to be pressurized to be consistent with the pressure in the siphon tank, the pressure will extrude the folded section, and the arrangement of the reinforcing ring plays the effect of replacing the folded section to bear the pressure, so that the effective liquid flow space in the folded section is ensured.

[0021] Optionally, a sealing strip is wound and fixed on the outer wall of the siphon tank, a binding block is fixed on the outer wall of the sealing disc, and the sealing strip is fixed by being bound with the binding block after covering the joint of the driving disc and the siphon tank and the joint of the sealing disc and the siphon tank.

[0022] By adopting the technical scheme, the sealing strip is arranged to further seal the gap between the sealing disc and the driving disc, the gap between the sealing disc and the siphon tank, or the gap between the driving disc and the siphon tank.

[0023] Optionally, the winding direction of the sealing strip on the outer wall of the siphon tank is opposite to the tightening direction of the sealing disc relative to the siphon tank.

[0024] By adopting the technical scheme, when the sealing disc has a tendency to loosen relative to the siphon tank, the sealing strip has the effect of locking the sealing disc.

[0025] Optionally, an elbow is fixed at the end of the liquid inlet pipe that is deep into the siphon tank.

[0026] By adopting the technical scheme, the existence of the elbow avoids the cooling liquid flowing in from the liquid inlet pipe from directly falling into the return pipe, and ensures that there is enough cooling liquid in the siphon tank to provide the heat exchanger.

[0027] To sum up, the present application has at least one of the following beneficial technical effects:

[0028] 1. The adjusting assembly can adjust the vertical height of the overflow pipe at the inner end of the siphon tank;

[0029] 2. The sealing assembly can improve the sealing performance of the siphon tank;

[0030] 3. The protective cover and the sealing strip further improve the pressure and sealing performance of the siphon tank. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a use state structure schematic diagram of an embodiment of the present application;

[0032] Figure 2 is a partial structure schematic diagram of the siphon tank;

[0033] Figure 3 is a partial structure sectional view of the siphon tank;

[0034] Figure 4 is Figure 3 is a local enlarged schematic diagram of part A of the present application.

[0035] In the figure, 1 is a compressor body; 11 is a liquid storage tank; 12 is a heat exchanger; 13 is an oil inlet pipe; 14 is an oil outlet pipe; 15 is a separation tank; 2 is a siphon tank; 21 is an overflow pipe; 211 is a folding section; 212 is a reinforcing ring; 22 is a liquid inlet pipe; 23 is a liquid outlet pipe; 24 is a positioning groove; 3 is an adjusting assembly; 31 is a driving disc; 32 is a positioning block; 4 is a sealing assembly; 41 is a sealing disc; 411 is a sliding block; 412 is a sliding groove; 42 is a guide ring; 43 is a sealing block; 44 is a spring; 5 is a protective cover; 51 is a booster pipe; 6 is a sealing strip; 61 is a binding block; 7 is an elbow; 8 is a balance pipe; 9 is a push block. DETAILED DESCRIPTION

[0036] The following will be described in detail in combination with the accompanying Figures 1-4 The present application will be further described in detail.

[0037] An embodiment of the present application discloses a compressor oil cooling device.

[0038] Reference Figure 1The compressor oil cooling device comprises a siphon tank 2, which is arranged between a compressor body 1, a liquid storage tank 11, a separation tank 15 and a heat exchanger 12. An oil inlet pipe 13 and an oil outlet pipe 14 are arranged between the compressor body 1 and the heat exchanger 12. One end of the oil inlet pipe 13 is in communication with the inside of the separation tank 15, and the other end is in communication with the inside of the heat exchanger 12. One end of the oil outlet pipe 14 is in communication with the inside of the heat exchanger 12, and the other end is in communication with the inside of the compressor body 1. The siphon tank 2 is provided with an overflow pipe 21, a liquid inlet pipe 22 and a liquid outlet pipe 23. One end of the overflow pipe 21, which is away from the siphon tank 2, is in communication with the inside of the liquid storage tank 11. One end of the liquid outlet pipe 23, which is away from the siphon tank 2, is in communication with the inside of the heat exchanger 12.

[0039] The oil and freon mixture flowing out of the compressor body 1 flows into the separator through the oil inlet pipe 13. The separation tank 15 separates the oil and freon. The freon flows to other processes, and the oil flows to the heat exchanger 12. The freon treated by high temperature and high pressure flows into the siphon tank 2 through the liquid inlet pipe 22 and flows into the heat exchanger 12 through the liquid outlet pipe 23, thereby cooling the oil in the heat exchanger 12. The cooled oil flows back to the compressor body 1 through the oil outlet pipe 14, thereby achieving the effect of recycling. The temperature of the oil flowing back to the compressor body 1 is appropriate.

[0040] The presence of the overflow pipe 21 ensures that the remaining refrigerant flows back to the liquid storage tank 11 after there is enough refrigerant in the siphon tank 2. A balance pipe 8 is further arranged between the siphon tank 2 and the liquid storage tank 11, which ensures that the gas pressure inside the liquid storage tank 11 and the siphon tank 2 is balanced.

[0041] With reference to Figure 2 and Figure 3 The siphon tank 2 is vertically arranged. The liquid inlet pipe 22 is in communication with the top of the siphon tank 2. The center line of the liquid inlet pipe 22 coincides with the center line of the siphon tank 2. A bend 7 is fixed to the end of the liquid inlet pipe 22 penetrating into the inside of the siphon tank 2. The liquid outlet pipe 23 is in communication with the vertical side wall of the siphon tank 2 and is located near the bottom of the siphon tank 2. One end of the overflow pipe 21 penetrates into the inside of the siphon tank 2 from the bottom of the siphon tank 2. The overflow pipe 21 is in sliding connection with the siphon tank 2. The vertical height of the end of the overflow pipe 21 located in the inside of the siphon tank 2 is higher than the height of the liquid outlet pipe 23 in communication with the siphon tank 2.

[0042] With reference to Figure 3 and Figure 4, overflow pipe 21 and siphon tank 2 is provided with adjusting assembly 3, adjusting assembly 3 is used to drive overflow pipe 21 inside siphon tank 2 one end along siphon tank 2 length direction sliding, adjusting assembly 3 includes drive disc 31 and positioning block 32, drive disc 31 is rotationally connected at siphon tank 2 bottom, rotation axis is siphon tank 2 center line, drive disc 31 outer diameter and siphon tank 2 diameter are same, overflow pipe 21 passes through drive disc 31 center and is connected with drive disc 31, overflow pipe 21 center line and drive disc 31 center line coincide, positioning block 32 is located inside siphon tank 2 and is fixed on overflow pipe 21 outer wall, siphon tank 2 inner wall is provided with positioning groove 24, positioning groove 24 is set along siphon tank 2 length direction, positioning block 32 is located in positioning groove 24 and slides along positioning groove 24 length direction.For the better rotation drive disc 31, drive disc 31 outer wall is fixed with knob 9.

[0043] Reference Figure 3 And Figure 4 , siphon tank 2 is provided with sealing assembly 4 and protective cover 5, along vertical direction, sealing assembly 4, adjusting assembly 3 and protective cover 5 are sequentially arranged from top to bottom.Sealing assembly 4 includes sealing disc 41, guide ring 42, sealing block 43 and spring 44, sealing disc 41 is connected with siphon tank 2, sealing disc 41 center line and siphon tank 2 center line coincide, sealing disc 41 outer diameter and siphon tank 2 diameter are same, overflow pipe 21 passes through sealing disc 41 center line, sealing disc 41 top surface is provided with sliding slot 412, sliding slot 412 is set along sealing disc 41 diameter direction, sealing block 43 is fixed with sliding block 411, sliding block 411 is located in sliding slot 412 and slides along sliding slot 412 length direction, spring 44 is located in sliding slot 412, one end of spring 44 is fixedly connected with sliding block 411, and the other end is fixedly connected with the groove wall of sliding slot 412 close to overflow pipe 21.Sealing block 43, spring 44, sliding block 411 and sliding slot 412 are a group, at least two groups are provided, two sealing blocks 43 are circular arc, and two sealing blocks 43 are connected end to end and surround overflow pipe 21 outer wall one round.Guide ring 42 is fixed on siphon tank 2 inner wall and is located above sealing block 43, the side wall of guide ring 42 close to sealing disc 41 center line is obliquely arranged, and the oblique direction is arranged from bottom to top along the direction close to sealing disc 41 center line, and the side wall of sealing block 43 close to guide ring 42 is also obliquely arranged, and the oblique direction is same with the oblique direction of the oblique side wall of guide ring 42.Rotating sealing disc 41 makes sealing disc 41 and siphon tank 2 tighten, in the process of tightening, sealing block 43 gradually approaches guide ring 42, and is positioned and guided to close to overflow pipe 21 by guide ring 42, when sealing disc 41 and siphon tank 2 are completely tightened, sealing block 43 tightly abuts overflow pipe 21 outer wall, at this moment, spring 44 is compressed.

[0044] Reference Figure 3The protective cover 5 is rotatably connected with the driving disc 31, and the rotation axis is the center line of the siphon tank 2. The protective cover 5 is communicated with a booster pipe 51, and the other end of the booster pipe 51 is connected with an external booster device, so as to pressurize the inside of the protective cover 5. The protective cover 5 is penetrated by the overflow pipe 21. The overflow pipe 21 is provided with a folded section 211 and a reinforcing ring 212. The folded section 211 is a bellows, and is located in the protective cover 5. The reinforcing ring 212 is provided with a plurality of reinforcing rings, and is annularly fixed on the folded section 211. Adjacent reinforcing rings 212 are arranged at intervals along the length direction of the folded section 211.

[0045] Reference Figure 2 The outer wall of the siphon tank 2 is wound and fixed with a sealing strip 6. The winding direction of the sealing strip 6 on the outer wall of the siphon tank 2 is opposite to the tightening direction of the sealing disc 41 relative to the siphon tank 2. The outer wall of the sealing disc 41 is fixed with a binding block 61. After the sealing strip 6 covers the junction of the driving disc 31 and the siphon tank 2 and the junction of the sealing disc 41 and the siphon tank 2, the sealing strip 6 is fixed with the binding block 61 by binding.

[0046] The implementation principle of the compressor oil cooling device in the embodiment of the application is as follows: when it is necessary to adjust the vertical height of the end of the overflow pipe 21 located in the siphon tank 2, the sealing disc 41 is rotated, so that a gap is formed between the sealing block 43 and the outer wall of the overflow pipe 21. The driving disc 31 is rotated, so as to adjust the height of the end of the overflow pipe 21 located in the siphon tank 2. After the adjustment is completed, the sealing disc 41 is tightened, so that the sealing block 43 is tightly attached to the outer wall of the overflow pipe 21. The sealing strip 6 is wound on the outer wall of the siphon tank 2 and is fixed on the binding block 61.

[0047] The embodiments of the specific embodiment are the preferred embodiments of the application, and do not limit the protection scope of the application. Therefore, equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A compressor oil cooling device, characterized in that: The invention comprises a siphon tank (2) vertically arranged between a heat exchanger (12) and a liquid storage tank (11), wherein an overflow pipe (21), a liquid inlet pipe (22) and a liquid outlet pipe (23) are connected to the siphon tank (2), wherein the liquid inlet pipe (22) is connected to the siphon tank (2) at the top of the siphon tank (2); the liquid outlet pipe (23) is connected to the siphon tank (2) at one end thereof at a vertical side wall of the siphon tank (2), and the other end thereof is connected to the interior of the heat exchanger (12); the overflow pipe (21) is connected to the siphon tank (2) at one end thereof at the bottom of the siphon tank (2), and the other end thereof is connected to the interior of the liquid storage tank (11); one end of the overflow pipe (21) penetrates into the interior of the siphon tank (2), and the overflow pipe located inside the siphon tank (2) The vertical height of the end portion of the overflow pipe (21) is higher than the height of the connection point between the liquid outlet pipe (23) and the siphon tank (2), the overflow pipe (21) is slidably connected to the siphon tank (2), and an adjustment component (3) is provided between the overflow pipe (21) and the siphon tank (2), and the adjustment component (3) is used to drive the overflow pipe (21) located at one end inside the siphon tank (2) to slide along the length direction of the siphon tank (2); the adjustment component (3) includes a drive disk (31) and a positioning block (32), the drive disk (31) is rotatably connected to the siphon tank (2), the rotation axis is the center line of the siphon tank (2), the overflow pipe (21) is threadedly connected to the drive disk (31), and the overflow pipe (21) passes through the drive disk (31) ), the center line of the overflow pipe (21) coincides with the center line of the driving disc (31), the positioning block (32) is fixed on the outer wall of the overflow pipe (21), a positioning groove (24) is provided on the inner wall of the siphon tank (2), the positioning groove (24) is provided along the length direction of the siphon tank (2), and the positioning block (32) is located in the positioning groove (24); a sealing assembly (4) is provided on the siphon tank (2), the sealing assembly (4) includes a sealing disc (41), a guide ring (42), a sealing block (43) and a spring (44), the sealing disc (41) is threadedly connected to the siphon tank (2), the center line of the sealing disc (41) coincides with the center line of the siphon tank (2), the overflow pipe (21) passes through the sealing disc (41) ) center line, the sealing block (43) is slidably arranged on the sealing disk (41), and the sliding direction is along the direction close to or away from the center line of the sealing disk (41). The guide ring (42) is fixed on the inner wall of the siphon tank (2). The guide ring (42) is inclined near the side wall of the center line of the sealing disk (41), and the inclined direction is set from bottom to top along the direction close to the center line of the sealing disk (41). The spring (44) is used to apply a force to the sealing block (43) in the direction away from the center line of the sealing disk (41); the sealing block (43) is arc-shaped and is tightly attached to the outer wall of the overflow pipe (21). The number of sealing blocks (43) is not less than two, and all the sealing blocks (43) are abutted head to tail to surround the outer wall of the overflow pipe (21).

2. A compressor oil cooling device according to claim 1, characterized in that: The side wall of the sealing block (43) close to the guide ring (42) is inclined, and the inclination direction is set from bottom to top along the direction close to the center line of the sealing disk (41), and the sealing block (43) abuts against the guide ring (42).

3. The compressor oil cooling device according to claim 1, characterized in that: The driving disc (31) is rotatably connected to a protective cover (5), the rotation axis being the center line of the driving disc (31), the protective cover (5) being located on the side of the driving disc (31) away from the siphon tank (2), and the protective cover (5) being connected to a boost pipe (51).

4. A compressor oil cooling device according to claim 3, characterized in that: The overflow pipe (21) comprises a folded section (211), the folded section (211) is made of a bellows material, and the folded section (211) is located inside the protective cover (5).

5. The compressor oil cooling device according to claim 4, characterized in that: A reinforcement ring (212) is fixed on the outer wall of the overflow pipe (21), and a plurality of reinforcement rings (212) are provided. Adjacent reinforcement rings (212) are arranged at intervals along the length direction of the folding section (211), and the reinforcement rings (212) are only distributed on the folding section (211).

6. The compressor oil cooling device according to claim 1, characterized in that: A sealing strip (6) is wound and fixed on the outer wall of the siphon tank (2), and a binding block (61) is fixed on the outer wall of the sealing disk (41). The sealing strip (6) covers the junction between the driving disk (31) and the siphon tank (2) and the junction between the sealing disk (41) and the siphon tank (2), and is then tied and fixed to the binding block (61).

7. The compressor oil cooling device according to claim 6, characterized in that: The winding direction of the sealing strip (6) on the outer wall of the siphon tank (2) is opposite to the tightening direction of the sealing disk (41) relative to the siphon tank (2).

8. The compressor oil cooling device according to claim 1, characterized in that: The liquid inlet pipe (22) is inserted into the interior of the siphon tank (2), and an elbow (7) is fixed at one end thereof.

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