Cooling device for screw air compressor

Abstract

The utility model relates to a screw type air compressor cooling device, which belongs to the technical field of air compressor equipment and comprises an air compressor body, and a cooling mechanism is mounted in the middle of the top of the air compressor body. The cooling mechanism comprises a cooling liquid supply box, the output end is connected with an evaporation box through a first liquid feeding pipe, the output end of the evaporation box is connected with a gas cooling box through a first exhaust pipe, a plurality of condensation pipes distributed in an array mode are arranged on the inner side wall of the gas cooling box, and a gas feeding fan is installed at the output end. The output end of the air supply fan communicates with an inner cavity of the air compressor body through a first air supply pipe. The two sides of the rear side wall of the air compressor body communicate with second exhaust pipes, the output end of the exhaust box is connected with the circulating base, gas is formed through evaporation, the gas enters the air compressor body to be cooled in a mist state after being cooled in the cooling box, the heated gaseous cooling liquid can be condensed into a liquid state through the circulating base again, and then the liquid state returns to the cooling liquid supply box, so that the cooling efficiency is greatly improved; and long-time stable operation of the air compressor is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the technical field of air compressor equipment, specifically relating to a cooling device for screw air compressors. Background Technology

[0002] Screw air compressors, widely used in industrial gas compression equipment, play a crucial role in numerous industries such as machinery manufacturing, chemical engineering, mining, and food processing due to their high efficiency, reliability, and ease of maintenance. Their working principle involves the meshing of screw rotors to compress air, thereby outputting high-pressure gas. However, during operation, the mechanical friction during air compression and the thermodynamic changes in the gas generate a significant amount of heat. If this heat is not dissipated effectively and promptly, the compressor temperature will continue to rise.

[0003] Currently, existing screw air compressor cooling technologies mainly include air cooling and water cooling. Air cooling utilizes a fan to force convection, dissipating heat from the compressor surface into the surrounding environment. However, this method is greatly affected by ambient temperature, with cooling efficiency significantly decreasing in high-temperature environments. Furthermore, fan operation easily attracts dust and debris to the equipment surface, hindering heat dissipation. Water cooling, on the other hand, uses circulating water to remove heat from the compressor. While offering relatively stable cooling, it suffers from high water consumption, scale buildup clogging pipes, high maintenance costs, and the potential for pipe freezing and bursting in cold regions. In addition, some traditional cooling devices have low coolant recycling efficiency, lacking efficient evaporation, condensation, and circulation systems, preventing full recovery and reuse of the coolant, resulting in resource waste and increased operating costs. Therefore, those skilled in the art have developed a screw air compressor cooling device to address the aforementioned problems. Utility Model Content

[0004] The purpose of this utility model is to provide a screw air compressor cooling device with a simple structure and reasonable design in order to solve the above problems.

[0005] This utility model achieves the above-mentioned objectives through the following technical solution: It includes an air compressor body, with a cooling mechanism installed at the top center of the air compressor body. The cooling mechanism includes a coolant supply tank, which is installed on the top of the air compressor body. Its output end is connected to an evaporator via a first liquid delivery pipe. The output end of the evaporator is connected to a gas cooling box via a first suction pipe. The inner wall of the gas cooling box is provided with several arrayed condenser tubes. An air blower is installed at its output end, and the output end of the air blower is connected to the inner cavity of the air compressor body via the first air delivery pipe. Second suction pipes connect to both sides of the rear wall of the air compressor body. The output end of the second suction pipe is connected to a suction box, and the output end of the suction box is connected to a circulation base. The liquid delivery pipe at the output end of the circulation base is connected to the input end of the coolant supply tank, thereby achieving coolant circulation and cooling.

[0006] As a further optimization scheme of the utility model, the front side wall of the evaporation box and the gas cooling box is provided with a protective plate in the middle position, which effectively protects the internal evaporation and condensation components, prevents external sundries and dust from entering, prolongs the service life of the equipment, and improves the operation stability of the device.

[0007] As a further optimization scheme of the utility model, the mounting end of each group of condensation pipes is fixedly provided with a mounting rack, the mounting rack is fixedly installed on the inner side wall of the gas cooling box, and the condensation pipes are not less than two groups, the condensation pipes are stably installed through the mounting rack, the condensation effect is guaranteed, the cooling capacity of the gaseous cooling liquid is enhanced, and the cooling efficiency is ensured.

[0008] As a further optimization scheme of the utility model, the input end of the evaporation box is provided with a first driving motor, which is used for driving the evaporation component to work, so that the cooling liquid is rapidly evaporated into gas in the evaporation box, power is provided for the subsequent cooling cycle, and the smooth progress of the cooling process is ensured.

[0009] As a further optimization scheme of the utility model, the inner side wall bottom of the air extraction box is provided with an air extraction fan at the middle position on both sides and at the output end of the second air extraction pipe, the output end of the air extraction fan is connected with the feeding pipe and communicates with the circulating base. The air extraction fan extracts the gaseous cooling liquid after absorbing heat from the air compressor body and sends it into the circulating base, so that the gaseous cooling liquid is efficiently transmitted.

[0010] As a further optimization scheme of the utility model, the inner side wall of the circulating base is provided with a mounting frame at the middle top upper end position, a condensation plate is fixedly installed at the middle position of the inner side wall of the mounting frame, a plurality of condensation holes are arranged in an array on the surface of the condensation plate, the gaseous cooling liquid is condensed into liquid again through the condensation plate and the condensation holes, the cooling liquid is conveniently recycled, and the resource utilization rate is improved.

[0011] As a further optimization scheme of the utility model, the input end of the air compressor body is provided with an air inlet, the output end is provided with an air outlet, and the driving end is provided with a driving box. The inner side wall of the driving box is provided with a driving gear and a transmission gear which are engaged with each other, the input end of the driving gear is connected with a second driving motor, the output ends of the driving gear and the transmission gear are respectively penetrated through and rotationally connected to the inner side wall of the air compressor body, and the output ends are both provided with a screw rod which is rotationally connected to the inner side wall of the air compressor body, so that the air compression function is realized.

[0012] As a further optimization scheme of the utility model, a protective cover is fixedly installed on one side wall of the driving box, and a mounting seat is installed at the bottom of the second driving motor and the first driving motor. The protective cover protects the driving components in the driving box, the mounting seat ensures that the motors are stably installed, and the safety and reliability of the equipment operation are improved.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model constructs a complete coolant circulation system through components such as a coolant supply tank, an evaporator, a gas cooling tank, and a circulation base. In this scheme, the coolant evaporates into gas, and after being cooled by the gas cooling tank, it enters the air compressor body in a mist state for cooling. The heated gaseous coolant can then be re-condensed into liquid state through the circulation base and return to the coolant supply tank, which greatly improves the cooling efficiency and ensures the long-term stable operation of the air compressor.

[0015] 2. In this utility model, multiple sets of condenser tubes arranged in an array are set in the gas cooling box and are securely installed by the mounting bracket. Compared with the traditional simple condensation structure, the cooling area is greatly increased and the condensation efficiency of gaseous coolant is improved. At the same time, the condenser plate in the circulation base and the condensation holes on its surface further enhance the secondary condensation effect, ensuring that the coolant can be fully recycled.

[0016] 3. In this utility model, an exhaust fan is installed at the bottom of the inner wall of the exhaust box to actively extract the gaseous coolant after absorbing heat from the air compressor body and send it into the circulation base. Compared with some existing technologies that rely on natural convection or simple pipeline transportation, this active transmission method can realize the transfer of gaseous coolant more quickly and stably, and avoid the overall operation of the cooling system being affected by poor transmission. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure and a partially enlarged view of this utility model;

[0018] Figure 2 This is the utility model Figure 1 A top-view structural diagram;

[0019] Figure 3 This is the utility model Figure 1 A rear-view stereoscopic structural diagram;

[0020] Figure 4 This is a partial cross-sectional perspective view of the gas cooling box of this utility model;

[0021] Figure 5 This is a utility model Figure 1 A schematic diagram of the partial post-section structure;

[0022] Figure 6 This is a top sectional view of the circulating base of this utility model;

[0023] Figure 7 This utility model Figure 1 Enlarged diagram of point A.

[0024] In the diagram: 1. Cooling mechanism; 101. Coolant supply tank; 102. First air supply pipe; 103. Protective plate; 104. Gas cooling box; 105. Evaporator; 106. First drive motor; 107. First liquid supply pipe; 108. Extraction pipe; 109. Extraction box; 111. Extraction pipe; 112. Extraction fan; 113. Mounting bracket; 114. Condenser pipe; 115. Air supply fan; 2. Air compressor body; 201. Air inlet; 202. Drive box; 203. Air outlet; 204. Mounting base; 205. Second drive motor; 206. Drive gear; 207. Transmission gear; 208. Protective cover; 209. Screw; 3. Circulation base; 301. Liquid supply pipe; 302. Mounting frame; 303. Condensation hole; 304. Condensation plate. Detailed Implementation

[0025] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0026] Example 1

[0027] like Figure 1 As shown, this screw air compressor cooling device mainly consists of an air compressor body 2, a cooling mechanism 1, and a circulation base 3. The cooling mechanism 1 is installed at the top center of the air compressor body 2 to cool the air compressor body 2. The circulation base 3 is connected to the cooling mechanism 1 to realize the circulation of coolant.

[0028] like Figure 1 , Figure 2 , Figure 3 As shown, the air compressor body 2 has the following structure and operation: The air compressor body 2 has an air inlet 201 at its input end, through which air enters, and an air outlet 203 at its output end, through which the compressed air is discharged. A drive box 202 is provided at the drive end of the air compressor body 2, and a protective cover 208 is fixedly installed on one side wall of the drive box 202 to protect the internal components.

[0029] like Figure 1 , Figure 2 , Figure 7As shown, a drive gear 206 and a transmission gear 207 are installed in the middle of the inner wall of the drive housing 202. The two mesh with each other. The input end of the drive gear 206 is connected to the second drive motor 205. The bottom of the second drive motor 205 is securely installed by the mounting base 204. When the second drive motor 205 starts, it drives the drive gear 206 to rotate, which in turn causes the transmission gear 207 to rotate through the meshing relationship. The output ends of the drive gear 206 and the transmission gear 207 are respectively connected to the inner wall of the air compressor body 2 through and rotated. Both output ends are equipped with screws 209, which are rotatably connected to the inner wall of the air compressor body 2. Under the rotation of the screws 209, the air is compressed in the air compressor body 2. A large amount of heat is generated during this process, which requires the cooling mechanism 1 to cool down.

[0030] like Figure 1 The cooling mechanism 1 shown includes key components such as a coolant supply tank 101, an evaporator 105, a gas cooling tank 104, and an air blower 115. The output end of the coolant supply tank 101 is connected to the evaporator 105 through a first liquid delivery pipe 107. A first drive motor 106 is installed at the input end of the evaporator 105. The bottom of the first drive motor 106 is also installed through a mounting base 204, which drives the evaporation assembly to operate. The coolant in the coolant supply tank 101 enters the evaporator 105 through the first liquid delivery pipe 107 under the action of the first drive motor 106 and evaporates into gas. The output end of the evaporator 105 is connected to the gas cooling tank 104 through a first exhaust pipe 108. A protective plate 103 is installed in the middle of the front side wall of the gas cooling tank 104 to protect the internal components.

[0031] like Figure 4 As shown, several sets of condenser tubes 114 arranged in an array are fixedly installed on one side of the inner wall of the gas cooling box 104 by a mounting bracket 113, and there are no fewer than two sets of condenser tubes 114. These condenser tubes 114 are used to cool the gaseous coolant. The cooled gaseous coolant becomes a mist. An air blower 115 is installed at the output end of the gas cooling box 104. The mist coolant is sent into the inner cavity of the air compressor body 2 through the first air supply pipe 102 via the air blower 115 to absorb the heat generated by the operation of the air compressor body 2 and achieve cooling.

[0032] like Figure 5 As shown, the second exhaust pipe 111 is connected to both sides of the middle of the rear side wall of the air compressor body 2. The second exhaust pipe 111 extracts the gaseous coolant that has been heated after absorbing heat. Its output end passes through and is connected to the exhaust box 109. The exhaust fan 112 is installed on both sides of the bottom of the inner side wall of the exhaust box 109 and at the output end of the second exhaust pipe 111. The output end of the exhaust fan 112 is connected to the feeding pipe. The two feeding pipes are respectively connected to the circulation base 3.

[0033] like Figure 6As shown, the inner side wall of the circulating base 3 is installed with an installation frame 302 at the top of the middle of the inner side wall, and a condensing plate 304 is fixedly installed at the middle of the inner side wall of the installation frame 302. The condensing plate 304 is provided with a plurality of condensing holes 303 arranged in an array on the surface. The gaseous cooling liquid enters the circulating base 3 under the action of the air suction fan 112, is condensed into liquid again by the condensing plate 304 and the condensing holes 303, and is sent back to the cooling liquid supply tank 101 by the liquid sending pump cooperating with the liquid sending pipe 301, so as to complete the recycling of the cooling liquid. Through the close cooperation and collaborative work of the above-mentioned components, the screw air compressor cooling device realizes efficient cooling of the air compressor, and guarantees the stable and reliable operation of the air compressor.

[0034] Working principle: when the air compressor body 2 is running, the second driving motor 205 in the driving box 202 drives the driving gear 206 to rotate, the driving gear 206 is engaged with the transmission gear 207, and then the screw 209 at the output end of the driving gear 206 and the transmission gear 207 rotates in the air compressor body 2, so as to realize the compression of air. In this process, the air compressor body 2 generates heat.

[0035] The cooling mechanism 1 starts to work, the cooling liquid in the cooling liquid supply tank 101 enters the evaporation tank 105 through the first liquid sending pipe 107, and is evaporated into gas under the action of the evaporation assembly driven by the first driving motor 106. The gaseous cooling liquid is sent into the inner cavity of the air compressor body 2 through the first air sending pipe 102 by the air sending fan 115, so as to reduce the temperature thereof.

[0036] At the same time, the gaseous cooling liquid heated by absorbing heat is sucked out through the second air suction pipe 111 at the rear side wall of the air compressor body 2, and the air suction fan 112 at the inner side wall bottom of the air suction tank 109 sends the gas into the circulating base 3 through the feeding pipe. The condensing plate 304 in the circulating base 3 condenses the gaseous cooling liquid into liquid again through the condensing holes 303 on the surface, and the liquid cooling liquid is sent back to the cooling liquid supply tank 101 through the liquid sending pipe 301, so as to complete the recycling of the cooling liquid.

[0037] During the whole working process, the protection plate 103 at the front side wall of the evaporation tank 105 and the gas cooling tank 104 protects the internal components, the protection cover 208 at the side wall of the driving box 202 protects the second driving motor 205, and the mounting seat 204 at the bottom of the first driving motor 106 and the second driving motor 205 guarantees the stability of the motor installation. Through such a complete circulating system, the screw air compressor is continuously cooled, and its stable operation is guaranteed.

[0038] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A screw air compressor cooling device, comprising an air compressor body (2), a cooling mechanism (1) is installed in the middle of the top of the air compressor body (2), characterized in that: The cooling mechanism (1) comprises a cooling liquid supply tank (101), the output end of the cooling liquid supply tank (101) is connected with an evaporation tank (105) through a first liquid feeding pipe (107), the output end of the evaporation tank (105) is connected with a gas cooling tank (104) through a first air exhaust pipe (108), the output end of the gas cooling tank (104) communicates with the inner cavity of the air compressor body (2); the middle positions of the rear side walls of the air compressor body (2) are penetrated by the second air exhaust pipes (111) and connected with air exhaust tanks (109), the output end of the air exhaust tank (109) is connected with a circulating base (3) for converting gas into liquid, and the output end of the circulating base (3) is connected with the input end of the cooling liquid supply tank (101), so that the cooling liquid is circulated and cooled.

2. A screw air compressor cooling device according to claim 1, characterized in that: The middle positions of the inner side walls of the gas cooling tank (104) are installed with a plurality of groups of arrayed condensing pipes (114), the output end of the gas cooling tank (104) is installed with a gas feeding fan (115), the output end of the gas feeding fan (115) is connected with a first gas feeding pipe (102), the first gas feeding pipe (102) communicates with the inner cavity of the air compressor body (2), and the output end of the circulating base (3) is installed with a liquid feeding pipe (301), and the liquid feeding pipe (301) is connected with the input end of the cooling liquid supply tank (101).

3. The screw air compressor cooling device of claim 1, wherein: The middle positions of the front side walls of the evaporation tank (105) and the gas cooling tank (104) are installed with protection plates (103).

4. The screw air compressor cooling device of claim 2, wherein: The mounting ends of each group of condensing pipes (114) are fixedly installed with mounting racks (113), the mounting racks (113) are fixedly installed on the inner side walls of the gas cooling tank (104), and the condensing pipes (114) are not less than two groups.

5. The screw air compressor cooling device of claim 3, wherein: The input end of the evaporation tank (105) is installed with a first driving motor (106) for driving the evaporation assembly.

6. The screw air compressor cooling device of claim 1, wherein: The middle positions of the inner side walls of the air exhaust tank (109) and the output ends of the second air exhaust pipes (111) are installed with air exhaust fans (112), and the output ends of the air exhaust fans (112) are connected with feeding pipes, and the two feeding pipes are connected with the circulating base (3) in communication.

7. The screw air compressor cooling device of claim 6, wherein: The middle top end positions of the inner side walls of the circulating base (3) are installed with mounting frames (302), the middle positions of the inner side walls of the mounting frames (302) are fixedly installed with condensing plates (304), and a plurality of arrayed condensing holes (303) are formed in the surfaces of the condensing plates (304).

8. The screw air compressor cooling device of claim 1, wherein: The input end of the air compressor body (2) is provided with an air inlet (201), the output end of the air compressor body (2) is provided with an air outlet (203), the driving end of the air compressor body (2) is provided with a driving box (202), the middle positions of the inner side walls of the driving box (202) are respectively provided with a driving gear (206) and a transmission gear (207), the driving gear (206) is engaged with the transmission gear (207), the input end of the driving gear (206) is connected with a second driving motor (205), the output ends of the driving gear (206) and the transmission gear (207) respectively penetrate and are rotatably connected to the inner side walls of the air compressor body (2), the output ends of the driving gear (206) and the transmission gear (207) are both provided with a screw rod (209), and the screw rod (209) is rotatably connected to the inner side walls of the air compressor body (2).

9. The screw air compressor cooling device of claim 8, wherein: One side wall of the driving box (202) is fixedly provided with a protective cover (208), and the bottoms of the second driving motor (205) and the first driving motor (106) are both provided with a mounting seat (204).

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