Improved efficient cooling device of screw compressor
By installing a nanofiltration membrane device in the screw compressor to filter cooling water and collect condensate, the problems of impurities and scale in the cooling water are solved, improving the cooling effect and resource utilization.
Patent Information
- Application Number
- CN202422988662.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-05
AI Technical Summary
In existing high-efficiency cooling devices for screw compressors, the cooling water contains many impurities and has high hardness, leading to scale formation, which affects the cooling effect and pollutes the environment when discharged, resulting in serious waste of resources.
A filtration system is installed to filter the cooling water using nanofiltration membranes, reducing impurities and hardness. The discharged condensate is collected by a collection system for unified treatment and reuse.
It improves the quality of cooling water, reduces scale formation, enhances heat transfer efficiency, avoids environmental pollution, and increases water resource utilization.
Smart Images

Figure CN223549422U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screw compressor technology, and in particular to an improved high-efficiency cooling device for screw compressors. Background Technology
[0002] A screw compressor is a positive displacement compressor, also known as a spiral compressor. It is an important piece of industrial equipment that compresses gas through the meshing and rotation of two or more screws (usually two). It is mainly used in the field of pneumatics to drive various pneumatic tools.
[0003] During the operation of a screw compressor, the gas is compressed and then condensed inside the condenser. The cooling water itself has high hardness and contains many impurities, resulting in a large amount of scale forming inside the condenser. Therefore, untreated cooling water will reduce the cooling effect. However, to achieve efficient cooling, the cooling water needs to be treated to reduce its hardness. Thus, a condensate filtration device is needed to achieve efficient cooling.
[0004] However, existing high-efficiency cooling devices for screw compressors have the following shortcomings:
[0005] Traditional screw compressors typically use condensers for high-efficiency cooling. However, the cooling water in the condenser is often directly supplied to the compressor's interior. This cooling water contains many impurities and has high hardness, which may lead to a large amount of scale buildup inside the cooling system, affecting the efficiency of the cooling process.
[0006] Cooling water in the condenser needs to be discharged. Traditional equipment may discharge it directly, which has a certain impact on the surrounding environment. The discharged water cannot be collected, resulting in serious waste of water resources. Utility Model Content
[0007] The purpose of this invention is to solve the problem that in existing equipment, unfiltered cooling water is transported to the inside of the outer casing through the first water supply pipe, filtered by the internal nanofiltration membrane, and then transported to the inside of the condenser through the second water supply pipe at the bottom. Therefore, this invention proposes an improved high-efficiency cooling device for screw compressors.
[0008] To achieve the above objectives, the present invention adopts the following technical solution: an improved high-efficiency cooling device for screw compressors, comprising a filtration mechanism, wherein a collection mechanism is fixedly connected to the top of the filtration mechanism;
[0009] The filtration mechanism includes a base plate, a screw compressor body fixedly connected to the top of the base plate, a connecting pipe fixedly connected to one side of the outer wall of the screw compressor body, a condenser fixedly connected to one end of the connecting pipe, a support frame fixedly connected to the top of the base plate, an outer shell provided on the inner surface of the support frame, two nanofiltration membranes provided on the inner surface of the outer shell, a sealing cover movably connected to the top of the outer shell, a first water supply pipe fixedly connected to the top of the sealing cover, a second water supply pipe fixedly connected to the bottom of the outer shell, and a screw connection between one side of the outer wall of the condenser and one side of the outer wall of the second water supply pipe.
[0010] Preferably, the collection mechanism includes a first drain pipe, and a collection chamber is fixedly connected to one side of the outer wall of the first drain pipe.
[0011] Preferably, the top of the collection chamber is screwed to a cover plate.
[0012] Preferably, a second drain pipe is fixedly connected to one side of the outer wall of the collection chamber.
[0013] Preferably, a water pump is fixedly connected to one side of the outer wall of the second drain pipe.
[0014] Preferably, a third drain pipe is fixedly connected to one side of the outer wall of the water pump.
[0015] Preferably, the top of the base plate is fixedly connected to the bottom of the collection chamber, the top of the base plate is fixedly connected to the bottom of the water pump, and one side of the outer wall of the condenser is screwed to one side of the outer wall of the first drain pipe.
[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0017] 1. In this utility model, by setting a filtration mechanism, unfiltered cooling water is transported to the inside of the outer shell through the first water supply pipe, filtered through the internal nanofiltration membrane, and then transported to the inside of the condenser through the second water supply pipe at the bottom. The mechanism improves the quality of the cooling water by filtering it, reducing hardness and impurities. The nanofiltration membrane can be replaced, which reduces scale inside the cooling system, improves heat transfer efficiency, and provides better cooling effect.
[0018] 2. In this utility model, by setting up a collection mechanism, the first drain pipe is connected to the drain pipe outside the condenser by screws. The water pump drives the condensate to be transported to the inside of the collection chamber and then discharged in a unified manner. The mechanism collects the discharged condensate to avoid random discharge and environmental pollution. After collection, it can be centrally treated and reused, thereby improving the utilization rate of water resources. Attached Figure Description
[0019] Figure 1This utility model provides a perspective view of the main structure of an improved high-efficiency cooling device for a screw compressor.
[0020] Figure 2 This utility model provides a split perspective view of the filter mechanism of an improved high-efficiency cooling device for a screw compressor;
[0021] Figure 3 A top-view perspective view of the filter mechanism of an improved high-efficiency cooling device for a screw compressor is provided for this utility model.
[0022] Figure 4 A perspective view of the collection mechanism of an improved high-efficiency cooling device for a screw compressor is provided for this utility model.
[0023] Legend:
[0024] 1. Filtration mechanism; 101. Base plate; 102. Screw compressor body; 103. Connecting pipe; 104. Condenser; 105. Support frame; 106. Outer shell; 107. Nanofiltration membrane; 108. Sealing cover; 109. First water supply pipe; 110. Second water supply pipe; 2. Collection mechanism; 201. First drain pipe; 202. Collection chamber; 203. Cover plate; 204. Second drain pipe; 205. Water pump; 206. Third drain pipe. Detailed Implementation
[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0027] Example 1, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model provides an improved high-efficiency cooling device for screw compressors, including a filter mechanism 1, and a collection mechanism 2 is fixedly connected to the top of the filter mechanism 1;
[0028] The filtration mechanism 1 includes a base plate 101. A screw compressor body 102 is fixedly connected to the top of the base plate 101. A connecting pipe 103 is fixedly connected to one side of the outer wall of the screw compressor body 102. A condenser 104 is fixedly connected to one end of the connecting pipe 103. A support frame 105 is fixedly connected to the top of the base plate 101. An outer shell 106 is provided on the inner surface of the support frame 105. Two nanofiltration membranes 107 are provided on the inner surface of the outer shell 106. A sealing cover 108 is movably connected to the top of the outer shell 106. A first water supply pipe is fixedly connected to the top of the sealing cover 108. 109. A second water supply pipe 110 is fixedly connected to the bottom of the outer casing 106, and one side of the outer wall of the condenser 104 is screwed to the other side of the outer wall of the second water supply pipe 110. With the above-mentioned components, when cooling water is delivered to the interior of the outer casing 106 from the first water supply pipe 109, it is filtered by the nanofiltration membrane 107. The nanofiltration membrane 107 can be replaced and can effectively remove organic matter, color and reduce hardness in the water, so that the treated condensate is delivered to the condenser 104 in real time, effectively preventing the formation of scale in the cooling system and improving heat transfer efficiency.
[0029] like Figure 3 As shown, the collection mechanism 2 includes a first drain pipe 201, and a collection chamber 202 is fixedly connected to one side of the outer wall of the first drain pipe 201. By pre-setting the above components, the discharged condensate can be transported through the first drain pipe 201 to the inside of the collection chamber 202 for collection and subsequent processing.
[0030] like Figure 3 As shown, the top of the collection chamber 202 is screwed with a cover plate 203. By pre-setting the above components, when cleaning the inside of the collection chamber 202, the cover plate 203 can be removed by threads, making it removable, easy to clean, and preventing sediment from clogging.
[0031] like Figure 3 As shown, a second drain pipe 204 is fixedly connected to one side of the outer wall of the collection chamber 202, and the condensate is discharged through the aforementioned components.
[0032] like Figure 3 As shown, a water pump 205 is fixedly connected to one side of the outer wall of the second drain pipe 204. By pre-setting the above-mentioned components, the pressure of the liquid is increased, which facilitates the discharge of condensate.
[0033] like Figure 3 As shown, a third drain pipe 206 is fixedly connected to one side of the outer wall of the water pump 205. By pre-setting the above components, condensate can be discharged.
[0034] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the top of the base plate 101 is fixedly connected to the bottom of the collection chamber 202, the top of the base plate 101 is fixedly connected to the bottom of the water pump 205, and one side of the outer wall of the condenser 104 is screwed to one side of the outer wall of the first drain pipe 201. By pre-setting the above components, the connection and stability between the components are ensured.
[0035] Working principle: First, the nanofiltration membrane 107 is installed inside the housing 106. Then, the sealing cover 108 is screwed to the top of the housing 106. Untreated cooling water is transported to the inside of the housing 106 through the first water supply pipe 109. The water is filtered by the internal nanofiltration membrane 107 to reduce internal impurities and hardness, preventing scale buildup inside the condenser 104 and affecting heat transfer efficiency. The water is then transported to the inside of the condenser 104 through the second water supply pipe 110. The condenser 104 cools the high-pressure steam generated by the screw compressor. The discharged condensate is transported to the collection chamber 202 through the external first drain pipe 201 for centralized collection, awaiting subsequent discharge and treatment for reuse. Later, the cover plate 203 on the top of the collection chamber 202 can be removed to clean the sediment inside the collection chamber 202 and prevent blockage.
[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. An improved high-efficiency cooling device for a screw compressor, comprising a filter mechanism (1), characterized in that: A collection mechanism (2) is fixedly connected to the top of the filtration mechanism (1); The filtration mechanism (1) includes a base plate (101), the top of which is fixedly connected to a screw compressor body (102). A connecting pipe (103) is fixedly connected to one side of the outer wall of the screw compressor body (102). A condenser (104) is fixedly connected to one end of the connecting pipe (103). A support frame (105) is fixedly connected to the top of the base plate (101). An outer shell (106) is provided on the inner surface of the support frame (105). Two nanofiltration membranes (107) are provided on the inner surface of the outer shell (106). A sealing cover (108) is movably connected to the top of the outer shell (106). A first water supply pipe (109) is fixedly connected to the top of the sealing cover (108). A second water supply pipe (110) is fixedly connected to the bottom of the outer shell (106). The outer wall of the condenser (104) is screwed to the outer wall of the second water supply pipe (110).
2. The improved high-efficiency cooling device for a screw compressor according to claim 1, characterized in that: The collection mechanism (2) includes a first drain pipe (201), and a collection chamber (202) is fixedly connected to one side of the outer wall of the first drain pipe (201).
3. The improved high-efficiency cooling device for a screw compressor according to claim 2, characterized in that: The top of the collection chamber (202) is screwed to a cover plate (203).
4. The improved high-efficiency cooling device for a screw compressor according to claim 3, characterized in that: A second drain pipe (204) is fixedly connected to one side of the outer wall of the collection chamber (202).
5. The improved high-efficiency cooling device for a screw compressor according to claim 4, characterized in that: A water pump (205) is fixedly connected to one side of the outer wall of the second drain pipe (204).
6. The improved high-efficiency cooling device for a screw compressor according to claim 5, characterized in that: A third drain pipe (206) is fixedly connected to one side of the outer wall of the water pump (205).
7. The improved high-efficiency cooling device for a screw compressor according to claim 6, characterized in that: The top of the base plate (101) is fixedly connected to the bottom of the collection chamber (202), the top of the base plate (101) is fixedly connected to the bottom of the water pump (205), and one side of the outer wall of the condenser (104) is screwed to one side of the outer wall of the first drain pipe (201).