Oil-gas cooler applied to screw compressor

Abstract

The utility model relates to the technical field of screw compressors, in particular to an oil-gas cooler applied to a screw compressor, which comprises a screw compressor, an air inlet and an air outlet are respectively arranged on opposite sides of the upper end and the lower end of the screw compressor, and a first three-way flange and a second three-way flange are respectively connected onto the air inlet and the air outlet through flanges. The first three-way flange and the second three-way flange are connected with a first conveying pipe and a second conveying pipe respectively, the first conveying pipe and the second conveying pipe are connected with a cooling mechanism, and a heat absorption pipe connected with the cooling mechanism is wound on the screw compressor. The cooling device has the advantages that oil liquid or air compressed by the screw compressor is cooled through cooperation of the first three-way flange, the second three-way flange, the second conveying pipe and the cooling mechanism, and the interior of the screw compressor is cooled; and cooling of the outside of the screw compressor is achieved through cooperation of the second spiral heat dissipation pipe and the cooling mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of screw compressors, in particular to an oil-gas cooler applied to screw compressors. Background Art

[0002] Screw compressors, also known as spiral compressors, include screw air compressors and screw process compressors. Screw compressors are positive displacement twin-screw oil-injected compressors, generally box-type skid-mounted structures. Screw compressors generate a lot of heat when they work continuously, so they need to be cooled.

[0003] China Publication No.: CN217761328U discloses a screw compressor cooling device, including: a guide assembly, which is distributed along the length direction of the screw compressor. A water storage assembly is arranged in the length direction of the guide assembly, and the side wall of the water storage assembly has a drainage pipe connected to the accommodating cavity. A spray assembly is slidably connected to the guide assembly, and the spray assembly has a water inlet facing the drainage pipe and a drainage port facing the screw compressor. A drive assembly can drive the spray assembly to slide back and forth along the guide assembly, so that the spray assembly sprays the coolant in the water storage assembly onto the screw compressor. The application device drives the spray assembly to move back and forth along the length direction of the screw compressor through the drive assembly, and sprays the coolant in the water storage assembly onto the outer casing of the screw compressor. The coolant will absorb the heat on the screw compressor during the volatilization process, thereby reducing its internal temperature and preventing mechanical failure due to excessive temperature. However, this device only cools the outer shell of the screw compressor. Since the two screws inside the screw compressor compress the oil or air and emit heat, the oil and gas in the screw compressor cannot be cooled, and the interior of the machine body cannot be cooled, which will cause the temperature of the internal components to be locally too high. Utility Model Content

[0004] 1. Technical Problems Solved

[0005] The technical problem to be solved by the utility model is that the existing oil-gas cooler of the screw compressor only cools the outer shell of the screw compressor, and the oil and gas in the screw compressor cannot be cooled, and the interior of the body cannot be cooled, which will cause the temperature of the internal components to be locally too high.

[0006] 2. Technical Solution

[0007] In order to solve the above technical problems, the technical solution provided by the utility model is: an oil-gas cooler applied to a screw compressor, comprising a screw compressor, wherein an air inlet and an air outlet are respectively arranged on the opposite sides of the upper and lower ends of the screw compressor, and the air inlet and the air outlet are flange-connected with three-way flange 1 and three-way flange 2 respectively, and the three-way flange 1 and the three-way flange 2 are respectively connected to delivery pipe 1 and delivery pipe 2, and the delivery pipe 1 and the delivery pipe 2 are connected to a cooling mechanism, and a heat absorption pipe connected to the cooling mechanism is wound around the screw compressor.

[0008] Furthermore, a plurality of heat sinks are provided in the middle of the screw compressor.

[0009] Furthermore, the heat absorbing tube includes a plurality of arc-shaped metal tubes located between adjacent heat sinks, and the adjacent arc-shaped metal tubes are connected by arc-shaped connecting tubes. Both ends of the heat absorbing tube are respectively connected to a delivery tube three and a delivery tube four connected to the cooling mechanism.

[0010] Furthermore, the cooling mechanism includes a cooling box, a horizontal partition is provided in the cooling box, the lower end of the horizontal partition is set as a water tank, a fan is installed on the upper end of the horizontal partition, and ventilation holes are respectively provided at the ends of the cooling box, an internal cooling component connected to delivery pipe one and delivery pipe two is installed in the cooling box, and an external cooling component connected to delivery pipe three and delivery pipe four is installed in the cooling box.

[0011] Furthermore, the internal cooling component includes a delivery pump 1 installed on the upper end of the cooling box and connected to a delivery pipe 1, one end of the delivery pipe 1 passes through the top wall of the cooling box and is connected to a spiral heat dissipation pipe 1, and one end of the delivery pipe 2 passes through a water tank and a horizontal partition and is connected to a spiral heat dissipation pipe 1.

[0012] Furthermore, the external cooling component includes a delivery pump 2 installed on the upper end of the cooling box and connected to a delivery pipe 3, one end of the delivery pipe 3 passes through the top wall of the cooling box and is connected to a spiral heat dissipation pipe 2, the lower end of the spiral heat dissipation pipe 2 is connected to a water inlet pipe that passes through the water tank and extends to the bottom, and the delivery pipe 4 is connected to the upper end of one side of the water tank.

[0013] 3. Beneficial Effects

[0014] The advantages of the utility model compared with the prior art are:

[0015] 1. Cool the oil or air through the internal cooling component to cool the inside of the screw compressor, that is, start the delivery pump 1, the oil or air compressed by the screw compressor passes through the tee flange 2, the delivery pipe 2, and the spiral heat dissipation pipe 1 in sequence, the oil or air in the delivery pipe 2 is partially cooled by the water tank, the oil or air in the spiral heat dissipation pipe 1 is cooled by the fan and the vent, and the cooling oil and gas are sequentially delivered to the screw compressor through the delivery pipe 1 and the tee flange 1, so that the oil or air is cooled, and the inside of the screw compressor is cooled.

[0016] 2. Cool the outside of the screw compressor through the external cooling component, that is, start the delivery pump 2, so that the water in the water tank is drawn by the water inlet pipe, the water passes through the spiral heat dissipation tube 2, and is cooled by the fan and the vent, and then the cooling water flows into the spiral heat dissipation tube 2 through the delivery pipe 3. The spiral heat dissipation tube 2 and the heat sink absorb the heat outside the screw compressor, and the hot water is delivered to the water tank through the delivery pipe 4, so as to realize the cooling of the outside of the screw compressor, and the cooling effect of the screw compressor is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the overall structure diagram of the utility model.

[0018] Figure 2 It is a structural diagram of a screw compressor of the present utility model.

[0019] Figure 3 It is a structural diagram of the heat absorption tube of the utility model.

[0020] Figure 4 It is a structural diagram of the internal cooling component of the utility model.

[0021] Figure 5 It is a structural diagram of the external cooling mechanism of the utility model.

[0022] As shown in the figure: 1. Screw compressor; 2. Air inlet; 3. Air outlet; 4. Tee flange one; 5. Tee flange two; 6. Delivery pipe one; 7. Delivery pipe two; 8. Cooling mechanism; 9. Heat absorbing pipe; 10. Heat sink; 11. Arc-shaped metal pipe; 12. Arc-shaped connecting pipe; 13. Delivery pipe three; 14. Delivery pipe four; 15. Cooling box; 1501, vent; 16. Horizontal partition; 17. Water tank; 18. Internal cooling assembly; 19. External cooling assembly; 20. Delivery pump one; 21. Spiral heat pipe one; 22. Delivery pump two; 23. Heat pipe two; 24. Water inlet pipe; 25. Fan. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] Embodiment 1

[0025] Combined with Figure 1 and attached Figure 2 An oil-gas cooler applied to a screw compressor comprises a screw compressor 1, wherein an air inlet 2 and an air outlet 3 are respectively arranged on opposite sides of the upper and lower ends of the screw compressor 1, wherein the air inlet 2 and the air outlet 3 are respectively flange-connected with a three-way flange 1 4 and a three-way flange 2 5, wherein the three-way flange 1 4 and the three-way flange 2 5 are respectively connected with a delivery pipe 1 6 and a delivery pipe 2 7, wherein the delivery pipe 1 6 and the delivery pipe 2 7 are connected with a cooling mechanism 8, wherein a heat absorption pipe 9 connected with the cooling mechanism 8 is wound around the screw compressor 1, and wherein a plurality of heat sinks 10 are arranged in the middle of the screw compressor 1.

[0026] In combination with the above structure, when the screw compressor 1 is running, cold water is transported in the heat absorption pipe 9, and the external heat of the screw compressor 1 is absorbed by the heat sink 10 and the heat absorption pipe 9, and the heat is transported to the cooling mechanism 8 for cooling through the heat absorption pipe 9, and the cooled water is then transported to the heat absorption pipe 9, thereby realizing the cooling of the outside of the screw compressor 1; the oil or air inside the screw compressor 1 is transported to the cooling mechanism 8 through the three-way flange 2 5 and the delivery pipe 2 7 for cooling, and the cooled oil or air is then transported to the screw compressor 1, thereby realizing the cooling of the oil or air, realizing the cooling of the inside of the screw compressor 1, and achieving a good cooling effect on the screw compressor 1.

[0027] Combined with Figure 3 The heat absorbing tube 9 includes a plurality of arc-shaped metal tubes 11 located between adjacent heat sinks 10, and the adjacent arc-shaped metal tubes 11 are connected by an arc-shaped connecting tube 12. The two ends of the heat absorbing tube 9 are respectively connected to a delivery tube three 13 and a delivery tube four 14 connected to the cooling mechanism 8.

[0028] The external heat of the screw compressor 1 is absorbed by the heat sink 10 and the arc-shaped metal tube 11 , and is taken away by the water flow in the heat absorption tube 9 .

[0029] Embodiment 2

[0030] Based on the first embodiment, combined with the attached Figure 1The cooling mechanism 8 includes a cooling box 15, a horizontal partition 16 is provided in the cooling box 15, the lower end of the horizontal partition 16 is set as a water tank 17, the upper end of the horizontal partition 16 is installed with a fan 25, and vents 1501 are respectively provided at both ends of the cooling box 15. An internal cooling component 18 connected to the delivery pipe 1 6 and the delivery pipe 2 7 is installed in the cooling box 15, and an external cooling component 19 connected to the delivery pipe 3 13 and the delivery pipe 4 14 is installed in the cooling box 15.

[0031] Combined with Figure 4 The inner cooling assembly 18 includes a delivery pump 20 installed at the upper end of the cooling box 15 and connected to a delivery pipe 6. One end of the delivery pipe 6 passes through the top wall of the cooling box 15 and is connected to a spiral heat dissipation pipe 21. One end of the delivery pipe 27 passes through the water tank 17 and the horizontal partition 16 and is connected to the spiral heat dissipation pipe 21.

[0032] In combination with the above structure, when the internal cooling component 18 is used, the delivery pump 20 is started, and the oil or air compressed by the screw compressor 1 passes through the three-way flange 25, the delivery pipe 27, and the spiral heat dissipation pipe 21 in sequence. The oil or air in the delivery pipe 27 is partially cooled by the water tank 17, and the oil or air in the spiral heat dissipation pipe 21 is cooled by the fan 25 and the vent 1501, so that the oil or air is cooled, and the cooled oil and gas are sequentially delivered to the screw compressor 1 through the delivery pipe 6 and the three-way flange 4 to achieve cooling of the inside of the screw compressor 1.

[0033] Combined with Figure 5 The external cooling component 19 includes a delivery pump 22 installed at the upper end of the cooling box 15 and connected to the delivery pipe 3 13. One end of the delivery pipe 3 13 passes through the top wall of the cooling box 15 and is connected to a spiral heat dissipation pipe 23. The lower end of the spiral heat dissipation pipe 23 is connected to a water inlet pipe 24 that passes through the water tank 17 and extends to the bottom. The delivery pipe 4 14 is connected to the upper end of one side of the water tank 17.

[0034] In combination with the above structure, when the external cooling component 19 is used, the delivery pump 22 is started to allow the water inlet pipe 24 to draw water from the water tank 17. The water passes through the spiral heat dissipation tube 23, and is cooled by the fan 25 and the vent 1501. The cooling water then flows into the spiral heat dissipation tube 23 through the delivery pipe 3 13. The spiral heat dissipation tube 23 and the heat sink 10 absorb the heat from the outside of the screw compressor 1, and the hot water is delivered to the water tank 17 through the delivery pipe 4 14, thereby cooling the outside of the screw compressor 1.

[0035] The specific usage is as follows:

[0036] When the screw compressor 1 is running, the delivery pump 20 and the fan 25 are started, and the oil or air compressed by the screw compressor 1 passes through the three-way flange 25, the delivery pipe 27, and the spiral heat dissipation pipe 21 in sequence. The oil or air in the delivery pipe 27 is partially cooled by the water tank 17, and the oil or air in the spiral heat dissipation pipe 21 is cooled by the fan 25 and the vent 1501, so that the oil or air is cooled, and the cooled oil and gas are sequentially delivered to the screw compressor 1 through the delivery pipe 6 and the three-way flange 4, so as to realize the cooling of the inside of the screw compressor 1;

[0037] Start the delivery pump 22 to allow the water in the water tank 17 to be drawn by the water inlet pipe 24. The water passes through the spiral heat dissipation pipe 23, and is cooled by the fan 25 and the vent 1501. The cooling water then flows into the spiral heat dissipation pipe 23 through the delivery pipe 3 13. The spiral heat dissipation pipe 23 and the heat sink 10 absorb the heat outside the screw compressor 1, and the hot water is delivered to the water tank 17 through the delivery pipe 4 14, thereby cooling the outside of the screw compressor 1, and having a good cooling effect on the screw compressor 1.

[0038] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. An oil-gas cooler for a screw compressor, comprising a screw compressor (1), wherein an air inlet (2) and an air outlet (3) are respectively provided on opposite sides of the upper and lower ends of the screw compressor (1), and the characteristics are: The air inlet (2) and the air outlet (3) are flange-connected with a tee flange 1 (4) and a tee flange 2 (5), respectively; the tee flange 1 (4) and the tee flange 2 (5) are respectively connected with a delivery pipe 1 (6) and a delivery pipe 2 (7); the delivery pipe 1 (6) and the delivery pipe 2 (7) are connected with a cooling mechanism (8); and a heat absorption pipe (9) connected to the cooling mechanism (8) is wound around the screw compressor (1).

2. The oil-gas cooler for a screw compressor according to claim 1, characterized in that: A plurality of cooling fins (10) are provided in the middle of the screw compressor (1).

3. The oil-gas cooler for a screw compressor according to claim 2, characterized in that: The heat absorbing tube (9) comprises a plurality of arc-shaped metal tubes (11) located between adjacent heat sinks (10), and the adjacent arc-shaped metal tubes (11) are connected via an arc-shaped connecting tube (12). The two ends of the heat absorbing tube (9) are respectively connected to a delivery tube three (13) and a delivery tube four (14) connected to a cooling mechanism (8).

4. The oil-gas cooler for a screw compressor according to claim 3, characterized in that: The cooling mechanism (8) comprises a cooling box (15), a horizontal partition (16) is provided in the cooling box (15), the lower end of the horizontal partition (16) is set as a water tank (17), the upper end of the horizontal partition (16) is installed with a fan (25), and the ends of the cooling box (15) are respectively provided with ventilation holes (1501), the cooling box (15) is installed with an internal cooling component (18) connected to the conveying pipe one (6) and the conveying pipe two (7), and the cooling box (15) is installed with an external cooling component (19) connected to the conveying pipe three (13) and the conveying pipe four (14).

5. The oil-gas cooler for a screw compressor according to claim 4, characterized in that: The inner cooling assembly (18) comprises a delivery pump (20) installed at the upper end of the cooling box (15) and connected to a delivery pipe (6); one end of the delivery pipe (6) passes through the top wall of the cooling box (15) and is connected to a spiral heat dissipation pipe (21); one end of the delivery pipe (7) passes through the water tank (17) and the horizontal partition (16) and is connected to the spiral heat dissipation pipe (21).

6. The oil-gas cooler for a screw compressor according to claim 4, characterized in that: The external cooling component (19) comprises a delivery pump 2 (22) installed at the upper end of the cooling box (15) and connected to the delivery pipe 3 (13); one end of the delivery pipe 3 (13) passes through the top wall of the cooling box (15) and is connected to the spiral heat dissipation pipe 2 (23); the lower end of the spiral heat dissipation pipe 2 (23) is connected to a water inlet pipe (24) that passes through the water tank (17) and extends to the bottom; the delivery pipe 4 (14) is connected to the upper end of one side of the water tank (17).

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