A self-cooling screw compressor

By introducing a combination design of liquid receiver, semiconductor cooler, descaling tank and reverse osmosis membrane into the screw compressor, the problem of insufficient air cooling capacity in high temperature environment is solved, achieving efficient and stable water cooling effect and improving the cooling performance and stability of the equipment.

CN224413879UActive Publication Date: 2026-06-26JIANGSU KAINENG MECHANICAL EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU KAINENG MECHANICAL EQUIP CO LTD
Filing Date
2025-08-01
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Traditional screw compressors experience a significant decrease in air-cooled heat dissipation capacity under high-temperature environments, resulting in limited cooling efficiency and affecting performance.

Method used

The system uses a liquid storage tank and a semiconductor cooler to cool the liquid through water cooling and refrigeration. It also uses a descaling tank and a reverse osmosis membrane to treat the coolant, ensuring the quality of the coolant. The semiconductor cooler is used to cool the coolant to near zero degrees Celsius to prevent scale buildup from affecting heat dissipation.

Benefits of technology

It improves the cooling efficiency and quality of the compressor in high-temperature environments, ensures stable water cooling performance over a long period of time, reduces noise, and enhances the stability of equipment operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of self-cooling screw compressor, including compressor body and the liquid storage box of assembly compressor body back, the outer wall of the compressor body is wound with cooling pipe, one end of the cooling pipe is fixedly installed with water inlet pipe, the other side of the cooling pipe is fixedly installed with water outlet pipe, the outer fixed installation of the compressor body has protective cover, the utility model relates to screw compressor technical field.The self-cooling screw compressor, by the cooperation of liquid storage box and semiconductor refrigerator, the cooling liquid after use can be cooled by the cooling mode, the cooling mode can be cooled quickly to cooling liquid, by the cooperation of descaling tank and reverse osmosis membrane, cooling liquid can be descaled when using, by descaling, it can avoid scale adhering to the outer wall of cooling pipe when using for a long time, affecting the water-cooling heat dissipation of compressor.
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Description

Technical Field

[0001] This utility model relates to the field of screw compressor technology, specifically a self-cooling screw compressor. Background Technology

[0002] A screw compressor is a rotary positive displacement compressor that uses a pair of meshing helical rotors (male and female rotors) to rotate within a cylinder to compress and transport gas. Its core principle is to complete the intake, compression, and exhaust processes through the periodic change of the rotor tooth groove volume. It has advantages such as compact structure, stable operation, and few vulnerable parts, and is widely used in mining, chemical, refrigeration, power, metallurgy and other fields. Screw compressors require cooling treatment during operation.

[0003] The "self-cooling screw compressor" disclosed in publication number "CN222835925U" includes a compressor body, a circulating cooling system provided on the outer surface of the compressor body, an input end of the circulating cooling system connected to a refrigeration device, an output end of the circulating cooling system connected to a circulating water tank, a circulating water tank provided at the tail end of the refrigeration device, and a heat dissipation device provided on the outer cover of the refrigeration device.

[0004] Traditional compressors mostly use air cooling to cool the liquid. Air cooling relies on air convection for heat dissipation, and its cooling efficiency is greatly affected by the ambient temperature. When the compressor operates in a high-temperature environment, the heat dissipation capacity of air cooling decreases significantly, resulting in high limitations in its use. To address these issues, we have designed a self-cooling screw compressor. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a self-cooling screw compressor, which solves the problem that most compressors use air cooling for heat dissipation. Air cooling relies on air convection for heat dissipation, and its cooling efficiency is greatly affected by ambient temperature. When the compressor operates in a high-temperature environment, the heat dissipation capacity of air cooling decreases significantly, resulting in high limitations in its use.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a self-cooling screw compressor, comprising a compressor body and a liquid storage box assembled on the back of the compressor body;

[0007] The outer wall of the compressor body is wrapped with a cooling pipe, one end of which is fixedly installed with a water inlet pipe and the other end of which is fixedly installed with a water outlet pipe. A protective cover is fixedly installed on the outside of the compressor body.

[0008] A semiconductor cooler is fixedly installed at the bottom of the liquid storage box, a liquid pump is fixedly installed on one side of the back of the liquid storage box, a liquid guide pipe is fixedly installed at the output end of the liquid pump, and a return connector connected to the water outlet pipe is fixedly installed at the center of the top of the liquid storage box.

[0009] A descaling tank is fixedly installed on one side of the top of the liquid storage box. A reverse osmosis membrane is fixedly installed inside the descaling tank. A closed cover is fitted on the top of the descaling tank. A threaded ring with threads installed inside the descaling tank is fixedly installed on the bottom of the closed cover. A rotary joint connected to the water inlet pipe is rotatably installed on the top of the closed cover.

[0010] Preferably, a heat insulation layer is fixedly installed inside the protective cover, and a sound insulation layer is fixedly installed on the inner wall of the heat insulation layer.

[0011] Preferably, the outer wall of the closed cover is provided with anti-slip grooves at equal intervals.

[0012] Preferably, a scale window is fixedly installed on the other side of the back of the liquid storage box.

[0013] Preferably, a replenishment tube is fixedly installed on the other side of the top of the liquid storage box, and a sealing cap is threaded onto the top of the replenishment tube.

[0014] Preferably, a fixing base is fixedly installed at the bottom of the protective cover, and fixing through holes are provided on both sides of the fixing base.

[0015] This invention provides a self-cooling screw compressor. Compared with the prior art, it has the following advantages:

[0016] (1) The self-cooling screw compressor, through the cooperation of the liquid receiver and the semiconductor cooler, can cool down the liquid that has heated up after use by means of refrigeration. The refrigeration cooling method can quickly cool down the coolant and can cool the coolant to near zero degrees. The low temperature coolant improves the cooling efficiency and cooling quality of the compressor during operation and avoids the situation where the coolant and compressor cannot be cooled in a high temperature environment.

[0017] (2) By combining the descaling tank and the reverse osmosis membrane, the coolant can be descaled during use. Descaling can prevent scale from adhering to the outer wall of the cooling pipe during long-term use and affecting its water cooling heat dissipation of the compressor, thus increasing functionality and improving the stability of water cooling heat dissipation of the compressor. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the cooling pipe structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the back structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the semiconductor cooler structure of this utility model.

[0022] Figure 5 This is a schematic diagram of the descaling tank structure of this utility model.

[0023] Figure 6 This is a schematic cross-sectional view of the protective cover of this utility model.

[0024] In the diagram: 1. Compressor body; 2. Protective cover; 201. Mounting base; 202. Mounting through hole; 203. Heat insulation layer; 204. Sound insulation layer; 3. Liquid storage box; 301. Scale window; 302. Liquid replenishment pipe; 303. Sealing cover; 304. Semiconductor cooler; 305. Liquid pump; 306. Liquid guide pipe; 307. Reflux connector; 4. Cooling pipe; 401. Water inlet pipe; 402. Water outlet pipe; 5. Descaling tank; 501. Reverse osmosis membrane; 502. Closing cover; 503. Threaded ring; 504. Rotary joint; 505. Anti-slip groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0026] Example 1

[0027] Please see Figures 1-6 As shown, this embodiment proposes a self-cooling screw compressor, including a compressor body 1 and a liquid storage box 3 assembled on the back of the compressor body 1. The outer wall of the compressor body 1 is wound with a cooling pipe 4. One end of the cooling pipe 4 is fixedly installed with a water inlet pipe 401, and the other side of the cooling pipe 4 is fixedly installed with a water outlet pipe 402. A protective cover 2 is fixedly installed on the outside of the compressor body 1. A semiconductor cooler 304 is fixedly installed at the bottom of the liquid storage box 3. A liquid pump 305 is fixedly installed on one side of the back of the liquid storage box 3. A liquid guide pipe 306 is fixedly installed at the output end of the liquid pump 305. A return connector 307 connected to the water outlet pipe 402 is fixedly installed at the center of the top of the liquid storage box 3.

[0028] In use, the compressor body 1 compresses and transports gas. Cooling pipes 4 are evenly wound around the outside of the compressor body 1. Cooling fluid is injected into the cooling pipes 4 to cool the compressor body 1 via water cooling. A protective cover 2 is fixedly installed on the outside of the compressor body 1 to protect the cooling pipes 4 during operation, preventing deformation or damage from external factors. One end of the cooling pipe 4 has a water outlet pipe 402 connected to a return connector 307 on the top of the liquid storage box 3. Cooling fluid heated during use flows through the water outlet pipe 402 and the return connector 307. 7 is discharged into the interior of the liquid storage box 3. The semiconductor cooler 304 at the bottom of the liquid storage box 3 can cool its interior, thereby cooling the coolant inside the liquid storage box 3. The cooling method improves the efficiency of cooling the coolant and can cool the coolant to near zero degrees. The low temperature coolant improves the cooling efficiency and cooling quality of the compressor body 1 during operation, avoiding the situation where the coolant and compressor cannot be cooled in a high temperature environment. The liquid pump 305 can draw the cooled coolant inside the liquid storage box 3, thereby facilitating the cooling pipe 4 to cool the compressor body 1.

[0029] Example 2

[0030] Based on Example 1, such as Figure 5 As shown, a descaling tank 5 is fixedly installed on one side of the top of the liquid storage box 3. A reverse osmosis membrane 501 is fixedly installed inside the descaling tank 5. A closing cover 502 is fitted on the top of the descaling tank 5. A threaded ring 503 with threads installed inside the descaling tank 5 is fixedly installed on the bottom of the closing cover 502. A rotary joint 504 connected to the water inlet pipe 401 is rotatably installed on the top of the closing cover 502.

[0031] In use, the liquid guide pipe 306 at the output end of the pump 305 is connected to the descaling tank 5, so that the cooled coolant in the storage box 3 can be injected into the descaling tank 5 through the pump 305. The reverse osmosis membrane 501 inside the descaling tank 5 can descale the coolant. By descaling the coolant, the scale buildup on the inner wall of the cooling pipe 4 during long-term use can be avoided, which affects the cooling quality of the compressor body 1. This increases functionality and improves the stability of water cooling of the compressor. The closing cover 502 is threaded onto the top of the descaling tank 5 through the threaded ring 503, so that the top of the descaling tank 5 can be closed by the closing cover 502. Opening the closing cover 502 makes it convenient for the staff to replace the reverse osmosis membrane 501 later. The rotary joint 504 is connected to the water inlet pipe 401, so that the cooled and descaled coolant can be injected into the cooling pipe 4, so that the cooling pipe 4 can continuously perform water cooling of the compressor body 1.

[0032] like Figure 6 As shown, a heat insulation layer 203 is fixedly installed inside the protective cover 2, and a sound insulation layer 204 is fixedly installed on the inner wall of the heat insulation layer 203.

[0033] When in use, the heat insulation layer 203 increases the heat insulation performance of the protective cover 2, reducing the amount of external heat entering the interior of the protective cover 2. The sound insulation layer 204 can provide sound insulation and noise reduction for the compressor body 1 during operation, reducing the transmission of noise when the compressor body 1 is operating.

[0034] like Figure 5 As shown, anti-slip grooves 505 are provided at equal intervals on the outer wall of the closed cover 502.

[0035] When in use, the anti-slip groove 505 increases the friction of the outer wall of the closed cover 502, improving the stability of the closed cover 502 during installation, disassembly and rotation by the staff, and preventing slippage.

[0036] like Figure 3 and Figure 4 As shown, a scale window 301 is fixedly installed on the other side of the back of the liquid storage box 3.

[0037] When in use, the scale window 301 can display the amount of coolant inside the liquid storage box 3. Staff can add coolant by checking the water level displayed on the scale window 301, which is convenient for staff to observe and understand.

[0038] like Figure 2 and Figure 3 As shown, a replenishment tube 302 is fixedly installed on the other side of the top of the liquid storage box 3, and a sealing cap 303 is threaded onto the top of the replenishment tube 302.

[0039] When in use, the replenishment tube 302 makes it convenient for staff to add coolant to the inside of the reservoir 3, and the sealing cap 303 can close the replenishment tube 302 to ensure its safety when not in use.

[0040] like Figure 1 and Figure 3 As shown, a fixing base 201 is fixedly installed at the bottom of the protective cover 2, and fixing through holes 202 are provided on both sides of the fixing base 201.

[0041] In use, the mounting base 201 can support the protective cover 2 and the compressor body 1. The mounting through hole 202 can be fixed with bolts to the mounting base 201, thereby improving the stability of the mounting base 201 when supporting the compressor body 1.

[0042] Working principle: The cooling pipe 4 is wrapped around the outside of the compressor body 1 and can dissipate heat and cool it by water cooling during operation. After use, the heated coolant flows back to the inside of the liquid storage box 3 through the water outlet pipe 402. The semiconductor cooler 304 can cool the heated coolant by cooling. The liquid pump 305 draws the cooled coolant from the inside of the liquid storage box 3 and discharges it into the inside of the descaling tank 5 through the liquid guide pipe 306. The reverse osmosis membrane 501 inside the descaling tank 5 can remove scale from the coolant. By removing scale from the coolant, the scale buildup on the inner wall of the cooling pipe 4 during long-term use can be avoided, which will affect the cooling quality of the compressor body 1. This ensures the stability of water cooling of the compressor body 1 over a long period of time.

[0043] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A self-cooling screw compressor, characterized in that: Includes the compressor body and the liquid reservoir at the back of the compressor body; The outer wall of the compressor body is wrapped with a cooling pipe, one end of which is fixedly installed with a water inlet pipe and the other end of which is fixedly installed with a water outlet pipe. A protective cover is fixedly installed on the outside of the compressor body. A semiconductor cooler is fixedly installed at the bottom of the liquid storage box, a liquid pump is fixedly installed on one side of the back of the liquid storage box, a liquid guide pipe is fixedly installed at the output end of the liquid pump, and a return connector connected to the water outlet pipe is fixedly installed at the center of the top of the liquid storage box. A descaling tank is fixedly installed on one side of the top of the liquid storage box. A reverse osmosis membrane is fixedly installed inside the descaling tank. A closed cover is fitted on the top of the descaling tank. A threaded ring with threads installed inside the descaling tank is fixedly installed on the bottom of the closed cover. A rotary joint connected to the water inlet pipe is rotatably installed on the top of the closed cover.

2. The self-cooling screw compressor according to claim 1, characterized in that: A heat insulation layer is fixedly installed inside the protective cover, and a sound insulation layer is fixedly installed on the inner wall of the heat insulation layer.

3. A self-cooling screw compressor according to claim 1, characterized in that: The outer wall of the closed cover is provided with anti-slip grooves at equal intervals.

4. A self-cooling screw compressor according to claim 1, characterized in that: A scale window is fixedly installed on the other side of the back of the liquid storage box.

5. A self-cooling screw compressor according to claim 1, characterized in that: A replenishment tube is fixedly installed on the other side of the top of the liquid storage box, and a sealing cap is threaded onto the top of the replenishment tube.

6. A self-cooling screw compressor according to claim 1, characterized in that: The bottom of the protective cover is fixedly installed with a mounting base, and the mounting base has fixing through holes on both sides.