Exhaust cooling mechanism of screw compressor

By introducing guide plates and a water circulation system into the screw compressor, the gas residence time is extended and the cooling water temperature is accelerated, solving the problem of insufficient exhaust cooling and achieving efficient gas cooling and cooling water recycling.

CN224228864UActive Publication Date: 2026-05-12BAOFENG COMPRESSOR TECH (ZHEJIANG) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BAOFENG COMPRESSOR TECH (ZHEJIANG) CO LTD
Filing Date
2025-04-15
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The cooling time of the exhaust cooling mechanism of the existing screw compressor is insufficient, resulting in insufficient heat transfer of the gas, limiting the cooling range, and affecting the stable operation of the equipment and environmental safety.

Method used

A screw compressor exhaust cooling mechanism was designed, which includes an exhaust pipe, a water circulation system, and a heat dissipation and cooling mechanism. The mechanism utilizes a guide plate to extend the gas residence time and combines water circulation and a cooling fan to accelerate the cooling water cooling, thereby achieving multiple cooling of the gas.

Benefits of technology

It significantly improves the cooling effect of the gas, ensures the safe and stable operation of the equipment, and enables the recycling of cooling water, thereby improving resource efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an exhaust cooling mechanism of a screw compressor, which relates to the technical field of compressors and comprises an exhaust pipe, an exhaust filtering structure, a water circulation system and a heat dissipation cooling mechanism. The exhaust pipe is composed of three parts, namely a transverse pipe, a vertical pipe and a water storage pipe; wherein the vertical pipe is vertically communicated with the water storage pipe, and the transverse pipe is horizontally connected to the connecting part of the vertical pipe and the water storage pipe; according to the utility model, the guide plates are arranged, and the two groups of guide plates ingeniously form a three-fold channel in the vertical pipe; due to the unique three-fold channel, the stay time of exhausted gas in the vertical pipe is greatly prolonged; meanwhile, the gas in the vertical pipe is cooled by virtue of the cooling sleeve, so that the cooling range after the gas is exhausted is obviously improved, and the cooling effect is effectively improved; the problem that according to a currently-adopted cooling mechanism, the cooling duration of gas exhausted by a compressor is insufficient, and consequently the gas cooling amplitude is greatly limited is solved.
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Description

Technical Field

[0001] This utility model belongs to the field of compressor technology, and more specifically, it relates to a screw compressor exhaust cooling mechanism. Background Technology

[0002] The high-temperature gas discharged from screw compressors needs to be effectively cooled; otherwise, it can easily damage downstream equipment, accelerate the aging and deformation of components, and shorten equipment lifespan. Direct discharge can also easily cause fires, and some components of the high-temperature emissions can pollute the atmosphere. Cooling can ensure equipment safety, reduce risks, and minimize environmental pollution in many ways. In practice, compressor exhaust commonly uses various cooling methods such as air cooling, water cooling, and cooler cooling. However, existing exhaust cooling mechanisms generally suffer from insufficient cooling time, resulting in inadequate heat transfer from the gas, limiting the cooling range, and affecting the production process and stable equipment operation. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a screw compressor exhaust cooling mechanism to solve the problem that the cooling time of the compressor exhaust gas is insufficient, resulting in a significant limitation on the gas cooling range, as currently used cooling mechanisms do not address this issue.

[0004] This utility model provides a screw compressor exhaust cooling mechanism, achieved through the following specific technical means:

[0005] A screw compressor exhaust cooling mechanism includes an exhaust pipe, an exhaust filter structure, a water circulation system, and a heat dissipation and cooling mechanism. The exhaust pipe consists of three parts: a horizontal pipe, a vertical pipe, and a water storage pipe. The vertical pipe is vertically connected to the water storage pipe, while the horizontal pipe is horizontally connected to the connection between the vertical pipe and the water storage pipe. The water circulation system includes a cooling sleeve and a heat dissipation water tank. The cooling sleeve is fitted over the outside of the vertical pipe, forming a sandwich layer between them. The upper and lower ends of the sandwich layer are closed, and stacked water baffles are provided within the sandwich layer. The cooling sleeve is positioned near... A water inlet pipe is connected to the lower part of the cooling sleeve, a pump is installed in the middle section of the water inlet pipe, and a filter nozzle is installed at the end of the water inlet pipe; a water outlet pipe is connected to the upper part of the cooling sleeve, and a bend pipe with multiple bends is connected to the end of the water outlet pipe. The ends of the bend pipe and the ends of the water inlet pipe are both placed in the heat dissipation water tank; the heat dissipation water tank is filled with cooling water, and a drain pipe is connected to one side of the heat dissipation water tank. A water valve is installed on the drain pipe; the heat dissipation and cooling mechanism includes a cooling fan, which is fixed to the heat dissipation water tank by a bracket rod, and the fan of the cooling fan is facing the bend pipe.

[0006] Furthermore, the water-blocking plate is in the shape of a square ring, with each water-blocking plate stacked on top of the other; each water-blocking plate has a water flow hole, and the water flow holes on adjacent water-blocking plates are arranged alternately from left to right.

[0007] Furthermore, the inner wall of the water storage pipe is provided with two layers of limiting clamps, and a sealing plate is inserted between the two layers of limiting clamps to form a sliding connection; one end of the sealing plate passes through the water storage pipe and protrudes, and the joint between the sealing plate and the water storage pipe has been sealed.

[0008] Furthermore, two sets of guide plates are fixed inside the vertical tube, one set of guide plates is straight and the other set of guide plates is L-shaped, and the two sets of guide plates form a three-fold channel inside the vertical tube.

[0009] Furthermore, the connection between the horizontal pipe and the vertical pipe is provided with an oblique guide plate, and the bottom of the horizontal pipe is provided with a water-stopping boss.

[0010] Furthermore, the exhaust filter structure includes a filter screen, which is plugged at the upper end of the vertical pipe. The edge of the filter screen is fixed to a fixing ring, and the fixing ring is bolted to the fixing plate to form a movable connection.

[0011] Furthermore, the heat dissipation and cooling mechanism also includes a stationary plate, which is welded and fixed to the heat dissipation water tank; three sets of motors are stationary on the stationary plate, and the output end of the motors is fixedly connected to a rotating rod. The rotating rod is equipped with a stirring paddle, which extends into the cooling water contained in the heat dissipation water tank.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model is equipped with guide plates, and two sets of guide plates ingeniously construct a three-fold channel inside the vertical pipe; this unique three-fold channel greatly extends the residence time of the discharged gas in the vertical pipe; at the same time, the gas in the vertical pipe is cooled by means of a cooling sleeve, thereby significantly improving the cooling and temperature reduction after the gas is discharged, and effectively improving the cooling effect.

[0014] 2. This utility model incorporates a water circulation system and a heat dissipation and cooling mechanism. The design of the bent pipe significantly increases the contact area with air. The cooling fan first cools the cooling water flowing through the bent pipe. Subsequently, the stirring paddle agitates the cooling water flowing into the heat dissipation tank, thereby accelerating the heat dissipation process and rapidly reducing the cooling water temperature. This achieves secondary cooling of the cooling water, ensuring that the cooling water temperature returns to normal. In this way, the cooling water can maintain a good cooling effect on the exhaust gas while successfully recycling the cooling water, effectively improving resource utilization efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of the cooling sleeve of this utility model.

[0017] Figure 3 This is a structural schematic diagram of the water-blocking plate of this utility model.

[0018] Figure 4 This is an internal schematic diagram of the exhaust pipe of this utility model.

[0019] Figure 5 This is a utility model Figure 4 Front view of the structure shown.

[0020] Figure 6 This is a partial structural schematic diagram of the present invention.

[0021] Figure 7 This is a schematic diagram of the air filter structure of this utility model.

[0022] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0023] 10. Exhaust pipe; 11. Horizontal pipe; 12. Vertical pipe; 13. Water storage pipe; 14. Limiting clamp; 15. Sealing plate; 16. Fixing plate; 17. Guide plate; 18. Flow guide plate; 19. Water-stopping boss;

[0024] 20. Exhaust filter structure; 21. Filter screen; 22. Retaining ring;

[0025] 30. Water circulation system; 31. Cooling jacket; 32. Water baffle; 33. Inlet pipe; 34. Pump; 35. Filter nozzle; 36. Outlet pipe; 37. Bend pipe; 38. Heat dissipation tank; 39. Drain pipe;

[0026] 40. Heat dissipation and cooling mechanism; 41. Cooling fan; 42. Support rod; 43. Fixed plate; 44. Motor; 45. Rotating rod; 46. Agitator. Detailed Implementation

[0027] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0028] Example:

[0029] As attached Figure 1 To be continued Figure 7 As shown:

[0030] This utility model provides a screw compressor exhaust cooling mechanism, which includes an exhaust pipe 10, an exhaust filter structure 20, a water circulation system 30, and a heat dissipation and cooling mechanism 40. The exhaust pipe 10 consists of three parts: a horizontal pipe 11, a vertical pipe 12, and a water storage pipe 13. The vertical pipe 12 is vertically connected to the water storage pipe 13, while the horizontal pipe 11 is horizontally connected to the connection between the vertical pipe 12 and the water storage pipe 13. The water circulation system 30 includes a cooling sleeve 31 and a heat dissipation water tank 38. The cooling sleeve 31 is sleeved on the outside of the vertical pipe 12, forming a sandwich between them. The upper and lower ends of the sandwich are closed, and the sandwich is provided with stacked water baffles 32. A water inlet pipe 33 is connected near the lower end, a pump 34 is installed in the middle section of the water inlet pipe 33, and a filter nozzle 35 is installed at the end of the water inlet pipe 33; a water outlet pipe 36 is connected near the upper end of the cooling sleeve 31, and a bent pipe 37 with multiple bends is connected to the end of the water outlet pipe 36. The ends of the bent pipe 37 and the ends of the water inlet pipe 33 are both placed in the heat dissipation water tank 38; the heat dissipation water tank 38 is filled with cooling water, and a drain pipe 39 is connected to one side of the heat dissipation water tank 38. A water valve is installed on the drain pipe 39; the heat dissipation and cooling mechanism 40 includes a cooling fan 41, which is fixed to the heat dissipation water tank 38 by a bracket rod 42, and the fan of the cooling fan 41 is facing the bent pipe 37.

[0031] Among them, such as Figure 3 As shown, the baffle plate 32 is a square ring, and the baffle plates 32 are stacked one on top of the other. Each baffle plate 32 has a water flow hole, and the water flow holes on adjacent baffle plates 32 are arranged alternately from left to right. Cooling water flows alternately between the water flow holes of the baffle plates 32 in the interlayer, thereby forming a uniform cooling layer in the interlayer. This cooling layer can cool the exhaust gas passing through the vertical pipe 21.

[0032] Among them, such as Figure 5 As shown, two layers of limiting clamps 14 are provided on the inner wall of the water storage pipe 13, and a sealing plate 15 is inserted between the two layers of limiting clamps 14 to form a sliding connection; one end of the sealing plate 15 passes through the water storage pipe 13 and protrudes, and the joint between the sealing plate 15 and the water storage pipe 13 has been sealed; the condensate is temporarily stored through the water storage pipe 13, and the water vapor in the vertical pipe 12 condenses into water droplets and falls into the water storage pipe 13 to gradually accumulate. Every certain period of time, the sealing plate 15 is pulled out from between the limiting clamps 14, thereby releasing the condensate from the water storage pipe 13.

[0033] Among them, such as Figure 4 and Figure 5As shown, two sets of guide plates 17 are fixed inside the vertical pipe 12. One set of guide plates 17 is straight, and the other set of guide plates 17 is L-shaped. The two sets of guide plates 17 form a three-fold channel inside the vertical pipe 12. This three-fold channel significantly prolongs the cooling time of the exhaust gas inside the vertical pipe 12, thereby improving the cooling amplitude after the gas is discharged.

[0034] Among them, such as Figure 5 As shown, the connection between the horizontal pipe 11 and the vertical pipe 12 is provided with an inclined guide plate 18, and the bottom of the horizontal pipe 11 is provided with a water-stopping boss 19. The guide plate 18 guides the flow of the falling condensate, and the water-stopping boss 19 blocks the condensate in the vertical pipe 12, preventing the condensate from flowing into the compressor from the horizontal pipe 11 and causing damage to the compressor.

[0035] Among them, such as Figure 7 As shown, the exhaust filter structure 20 includes a filter screen 21, which is plugged at the upper end of the vertical pipe 12. The edge of the filter screen 21 is fixed to a fixing ring 22, and the fixing ring 22 is bolted to a fixing plate 16, thus forming a movable connection. The filter screen 21 purifies and filters the gas before it is discharged, preventing harmful substances in the gas from polluting the air. The exhaust filter structure 20 can be removed from the exhaust pipe 10 for easy replacement or cleaning, thereby ensuring the filtration and purification effect on the gas.

[0036] Among them, such as Figure 6 As shown, the heat dissipation and cooling mechanism 40 also includes a stationary plate 43, which is welded and fixed to the heat dissipation water tank 38. Three sets of motors 44 are stationary on the stationary plate 43. The output end of the motors 44 is fixedly connected to a rotating rod 45. The rotating rod 45 is equipped with a stirring paddle 46, which extends into the cooling water contained in the heat dissipation water tank 38. By stirring the cooling water in the heat dissipation water tank 38 with the stirring paddle 46, the heat dissipation of the cooling water can be accelerated, the temperature of the cooling water can be reduced quickly, and the cooling effect of the cooling water on the gas can be maintained.

[0037] The specific usage and function of this embodiment are as follows:

[0038] In this invention, the pump 34 is turned on, and cooling water in the heat dissipation water tank 38 is drawn into the cooling sleeve 31 through the water inlet pipe 33. The cooling water passes through the water flow holes of multiple sets of water baffles 32 in the interlayer between the vertical pipe 12 and the cooling sleeve 31, thereby forming a uniform cooling layer in the interlayer. The compressor exhaust port is connected to the horizontal pipe 11, and the gas discharged by the compressor enters the vertical pipe 12 through the horizontal pipe 11 and passes through the three-fold channel formed by the two sets of guide plates 17. The cooling layer cools the gas passing through the vertical pipe 12. After being cooled for a long time, the gas reaches the upper end of the vertical pipe 12 and is purified by the filter screen 21 before being discharged. The system filters out harmful substances in the gas to prevent air pollution. After the temperature rises in the cooling sleeve 31, the cooling water enters the bend pipe 37 through the outlet pipe 36. The bend pipe 37 has a larger contact area with the air, and the cooling water passing through the bend pipe 37 is cooled once by the cooling fan 41. Then, the cooling water enters the cooling water tank 38 through the bend pipe 37. The cooling water in the cooling water tank 38 is stirred by the agitator 46, which can accelerate the heat dissipation of the cooling water, quickly reduce the temperature of the cooling water, and achieve secondary cooling of the cooling water. The temperature of the cooling water returns to normal, thereby maintaining the cooling effect of the cooling water on the gas and realizing the recycling of the cooling water.

[0039] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

Claims

1. A screw compressor exhaust cooling mechanism, comprising an exhaust pipe (10), a fixed plate (16), an exhaust filter structure (20), a water circulation system (30), and a heat dissipation and cooling mechanism (40); wherein the exhaust pipe (10) consists of three parts, namely a horizontal pipe (11), a vertical pipe (12), and a water storage pipe (13); wherein, The vertical pipe (12) is vertically connected to the water storage pipe (13), while the horizontal pipe (11) is horizontally connected to the connection between the vertical pipe (12) and the water storage pipe (13); the water circulation system (30) includes a cooling sleeve (31) and a heat dissipation tank (38); characterized in that: the cooling sleeve (31) is sleeved on the outside of the vertical pipe (12), forming a sandwich between the two, the upper and lower ends of the sandwich are closed, and the sandwich is provided with stacked water baffles (32); a water inlet pipe (33) is connected to the lower end of the cooling sleeve (31), a pump (34) is provided in the middle section of the water inlet pipe (33), and a filter nozzle (35) is provided at the end of the water inlet pipe (33). A water outlet pipe (36) is connected to the upper part of the cooling sleeve (31). The end of the water outlet pipe (36) is connected to a bend pipe (37) with multiple bends. The end of the bend pipe (37) and the end of the water inlet pipe (33) are both placed in the heat dissipation water tank (38). The heat dissipation water tank (38) is filled with cooling water. A drain pipe (39) is connected to one side of the heat dissipation water tank (38). A water valve is installed on the drain pipe (39). The heat dissipation and cooling mechanism (40) includes a heat dissipation fan (41). The heat dissipation fan (41) is fixed to the heat dissipation water tank (38) by a bracket rod (42), and the fan of the heat dissipation fan (41) is facing the bend pipe (37). The exhaust filter structure (20) includes a filter screen (21), which is plugged at the upper end of the vertical pipe (12). The edge of the filter screen (21) is fixed on the fixing ring (22), and the fixing ring (22) is connected to the fixing plate (16) by bolts, thereby forming a movable connection.

2. The screw compressor exhaust cooling mechanism as described in claim 1, characterized in that: The water-blocking plate (32) is in the shape of a square ring, and the water-blocking plates (32) are stacked one on top of the other; each water-blocking plate (32) has a water flow hole, and the water flow holes on adjacent water-blocking plates (32) are arranged alternately from left to right.

3. The screw compressor exhaust cooling mechanism as described in claim 1, characterized in that: The inner wall of the water storage pipe (13) is provided with two layers of limiting clamps (14), and a sealing plate (15) is inserted between the two layers of limiting clamps (14) to form a sliding connection; one end of the sealing plate (15) passes through the water storage pipe (13) and protrudes, and the joint between the sealing plate (15) and the water storage pipe (13) has been sealed.

4. The screw compressor exhaust cooling mechanism as described in claim 1, characterized in that: Two sets of guide plates (17) are fixed inside the vertical tube (12). One set of guide plates (17) is straight, and the other set of guide plates (17) is L-shaped. The two sets of guide plates (17) form a three-fold channel inside the vertical tube (12).

5. The screw compressor exhaust cooling mechanism as described in claim 1, characterized in that: The connection between the horizontal pipe (11) and the vertical pipe (12) is provided with an oblique guide plate (18), and the bottom of the horizontal pipe (11) is provided with a water-stopping boss (19).

6. The screw compressor exhaust cooling mechanism as described in claim 1, characterized in that: The heat dissipation and cooling mechanism (40) also includes a fixed plate (43), which is welded and fixed on the heat dissipation water tank (38); three sets of motors (44) are fixed on the fixed plate (43), and the output end of the motors (44) is fixedly connected to a rotating rod (45). The rotating rod (45) is provided with a stirring paddle (46), which extends into the cooling water contained in the heat dissipation water tank (38).