Efficient cooling screw air compressor
By combining air-cooling and liquid-cooling cooling systems, the problem of heat accumulation in the casing of screw air compressors has been solved, achieving efficient cooling and improved safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN KANGHENG HARDWARE TECH CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-04-28
AI Technical Summary
Existing screw air compressors accumulate a large amount of heat on their outer casing during operation, posing a safety hazard, and their cooling effect is not efficient enough.
The system employs a combination of air cooling and liquid cooling. By adjusting the lead screw to move the mounting plate and piston plate, large-area air cooling is achieved, while liquid cooling is performed using the heat exchange pipes inside the spiral blade rod, thereby enhancing cooling efficiency.
It achieves efficient cooling of the screw air compressor, reduces the casing temperature, and improves safety and cooling efficiency.
Smart Images

Figure CN224174271U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screw air compressor technology, specifically to a high-efficiency cooled screw air compressor. Background Technology
[0002] Screw air compressors are pre-configured systems requiring only a single power and compressed air connection, and feature a built-in cooling system, greatly simplifying installation. Screw air compressors consistently provide high-quality compressed air to various industries due to their high efficiency, maintenance-free operation, and high reliability. They are essential in the quick-freezing process of tilapia. However, existing screw air compressors have several problems and require further improvement.
[0003] According to the search, for example, the screw air compressor for quick freezing of tilapia proposed in patent publication number CN216518638U includes a screw air compressor body, an installation groove is provided on one side of the inside of the screw air compressor body, an annular connecting groove is opened on one side of the inner wall of the screw air compressor body, an annular dovetail groove is opened on one side of the outer surface of the screw air compressor body, and an annular slide rail is installed on the inner wall of the other side of the screw air compressor body.
[0004] The aforementioned patent documents only utilize components such as mounting plates, mounting frames, motors, turntables, mounting rods, and cooling fans to achieve air cooling of the motor area inside the screw air compressor. However, during operation, a significant amount of heat still accumulates on the outer casing of the screw air compressor. If operators mishandle the compressor, direct contact between the casing and the worker's skin could cause localized burns, posing a safety hazard. Therefore, there is an urgent need for a screw air compressor with highly efficient cooling to address this issue. Utility Model Content
[0005] The purpose of this invention is to provide a screw air compressor with high-efficiency cooling to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency cooled screw air compressor, comprising a base, upright plates fixedly installed on the front and rear sides of the upper end face of the base, an adjusting screw rotatably installed between the two upright plates on the front side, an air-cooling mechanism provided on the side wall of the adjusting screw, support plates fixedly installed on the left and right sides of the middle of the upper end face of the base, a housing fixedly installed between the support plates on the left and right sides, a pressurizing mechanism provided in the inner cavity of the housing, and a liquid cooling mechanism provided on the left end face of the adjusting screw.
[0007] Preferably, the air-cooling mechanism includes a limiting rod rotatably mounted between the two rear upright plates, and a mounting plate slidably mounted on the side wall of the limiting rod. A cooling fan is fixedly mounted in the inner cavity of the mounting plate. An adjusting motor is fixedly mounted on the upper front right side of the equipment base via a frame. An adjusting worm is fixedly mounted on the output shaft end of the adjusting motor, and an adjusting worm wheel is meshed with the lower part of the adjusting worm.
[0008] Preferably, the adjusting worm gear is fixedly installed on the right end face of the adjusting screw, the mounting plate is threadedly connected to the adjusting screw, and the mounting plate is located below the machine housing.
[0009] Preferably, an insulation sleeve is fixedly installed on the side wall of the housing, a circulating water inlet is fixedly installed in the middle of the front end face of the insulation sleeve, and clean water is filled between the housing and the insulation sleeve.
[0010] Preferably, the pressurization mechanism includes a drive shaft rotatably mounted in the middle of the left side wall of the housing, and a drive motor fixedly mounted on the left side wall of the housing via a frame. The output shaft end of the drive motor is fixedly connected to the drive shaft. A helical blade is fixedly mounted on the right end face of the drive shaft. An air inlet pipe communicating with the housing is fixedly mounted on the left side wall of the insulation sleeve, and an air outlet pipe communicating with the housing is fixedly mounted on the right side wall of the insulation sleeve.
[0011] Preferably, the liquid cooling mechanism includes a pressure accumulator fixedly installed on the left side of the upper end face of the equipment base, and a cam fixedly installed on the left end face of the adjusting screw. A piston plate is slidably installed in the inner cavity of the pressure accumulator. An extension rod is fixedly installed on the front end face of the piston plate. A return spring is wound around the side wall of the extension rod. A liquid storage box is also fixedly installed on the left side of the upper end face of the equipment base. A connecting ring is rotatably installed on the left side wall of the drive shaft. A through hole is opened in the inner cavity of the connecting ring on the side wall of the drive shaft. The drive shaft is hollow and connected to the spiral blade rod. A spiral heat exchange pipeline is provided in the inner cavity of the spiral blade rod. A return pipe is fixedly installed on the right end face of the spiral blade rod. The return pipe is rotatably connected to the housing.
[0012] Preferably, one end of the return spring is fixedly installed on the side wall of the piston plate, and the other end is fixedly installed on the inner side wall of the accumulator box. The extension rod is slidably connected to the accumulator box and abuts against the side wall of the cam. An inlet pipe communicating with the liquid storage box is fixedly installed on the front end face of the accumulator box. A one-way water valve with an outlet to the inner cavity of the accumulator box is provided in the inner cavity of the inlet pipe. An outlet pipe communicating with the connecting ring is fixedly installed on the upper end face of the accumulator box. A one-way water valve with an outlet to the inner cavity of the connecting ring is provided in the inner cavity of the outlet pipe.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. In this utility model, the worker can start the adjusting motor to rotate the adjusting worm gear, which will drive the adjusting worm wheel to rotate the adjusting screw. Since the mounting plate is threadedly connected to the adjusting screw, under the constraint of the limit rod, this mounting plate will move left and right on the side wall of the adjusting screw, continuously changing the position of the cooling fan, so as to achieve the function of large-area air cooling of the casing.
[0015] 2. In this utility model, when the adjusting screw rotates, it drives the cam to rotate. The cam drives the extension rod to make the piston plate slide back and forth in the inner cavity of the accumulator box. When the piston plate moves to the front of the inner cavity of the accumulator box, the coolant in the inner cavity of the storage box can enter the inner cavity of the accumulator box through the inlet pipe. When the piston plate moves to the rear of the inner cavity of the accumulator box, the coolant in the accumulator box can enter the inner cavity of the connecting ring through the outlet pipe, and then enter the spiral blade through the through hole. At this time, through the setting of the heat exchange pipe in the spiral blade, the coolant can fully contact the inner wall of the spiral blade, thereby removing the heat generated by the spiral blade during operation, and thus greatly improving the cooling efficiency of the entire device. Attached Figure Description
[0016] Figure 1 This is a front view schematic diagram of the overall structure of a high-efficiency cooling screw air compressor according to the present invention;
[0017] Figure 2 This is a rear view schematic diagram of the overall structure of a high-efficiency cooling screw air compressor according to the present invention;
[0018] Figure 3 This is a rear sectional view of the screw air compressor with high-efficiency cooling according to the present invention.
[0019] Figure 4 This is a cross-sectional view of the accumulator section of a high-efficiency cooling screw air compressor according to this utility model.
[0020] Figure 5 This is a cross-sectional view of the connecting ring of a high-efficiency cooling screw air compressor according to this utility model.
[0021] Figure 6 This is a cross-sectional view of the screw blade of a high-efficiency cooling screw air compressor according to the present invention.
[0022] In the diagram: 1. Equipment base; 2. Vertical plate; 3. Adjusting screw; 4. Air-cooling mechanism; 41. Limiting rod; 42. Mounting plate; 43. Cooling fan; 44. Adjusting motor; 45. Adjusting worm gear; 46. Adjusting worm wheel; 5. Support plate; 6. Housing; 61. Insulation sleeve; 62. Circulating water inlet; 7. Pressurization mechanism; 71. Drive shaft; 711. Through hole; 72. Drive motor; 73. Spiral blade; 731. Heat exchange pipeline; 74. Inlet pipe; 75. Outlet pipe; 8. Liquid cooling mechanism; 81. Accumulator box; 811. Liquid inlet pipe; 812. Liquid outlet pipe; 82. Cam; 83. Piston plate; 84. Extension rod; 85. Return spring; 86. Liquid storage box; 71. Drive shaft; 87. Connecting ring; 88. Return pipe. Detailed Implementation
[0023] 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 protection scope of the present utility model.
[0024] Please see Figures 1-6 This utility model provides a high-efficiency cooling screw air compressor technical solution: a high-efficiency cooling screw air compressor includes an equipment base 1, upright plates 2 are fixedly installed on the front and rear sides of the upper end face of the equipment base 1, an adjusting screw 3 is rotatably installed between the two upright plates 2 on the front side, an air cooling mechanism 4 is provided on the side wall of the adjusting screw 3, support plates 5 are fixedly installed on the left and right sides of the middle of the upper end face of the equipment base 1, a housing 6 is fixedly installed between the support plates 5 on the left and right sides, a pressurizing mechanism 7 is provided in the inner cavity of the housing 6, and a liquid cooling mechanism 8 is provided on the left end face of the adjusting screw 3.
[0025] Furthermore, the air-cooling mechanism 4 includes a limiting rod 41 rotatably mounted between the two rear upright plates 2, and a mounting plate 42 slidably mounted on the side wall of the limiting rod 41. A cooling fan 43 is fixedly mounted in the inner cavity of the mounting plate 42. An adjusting motor 44 is fixedly mounted on the upper front right side of the equipment base 1 via a frame. An adjusting worm gear 45 is fixedly mounted on the output shaft end of the adjusting motor 44. An adjusting worm wheel 46 is meshed with the lower part of the adjusting worm gear 45.
[0026] The adjusting worm gear 46 is fixedly installed on the right end face of the adjusting screw 3, and the mounting plate 42 is threadedly connected to the adjusting screw 3. The mounting plate 42 is located below the housing 6.
[0027] It should be noted that the worker can start the adjusting motor 44 to rotate the adjusting worm 45, which will drive the adjusting worm wheel 46 to rotate the adjusting screw 3. Since the mounting plate 42 is threadedly connected to the adjusting screw 3, under the constraint of the limit rod 41, the mounting plate 42 will move left and right on the side wall of the adjusting screw 3, continuously changing the position of the cooling fan 43, so as to achieve the function of large-area air cooling of the casing 6.
[0028] Furthermore, an insulation sleeve 61 is fixedly installed on the side wall of the housing 6, and a circulating water inlet 62 is fixedly installed in the middle of the front end face of the insulation sleeve 61. Clean water is filled between the housing 6 and the insulation sleeve 61.
[0029] It should be noted that by introducing clean water into the housing 6 and the insulation jacket 61, the heat transferred to the side wall of the housing 6 can be absorbed when the pressurizing mechanism 7 is working, thereby improving the cooling effect of the entire device.
[0030] Furthermore, the pressurization mechanism 7 includes a drive shaft 71 rotatably mounted in the middle of the left side wall of the housing 6, and a drive motor 72 fixedly mounted on the left side wall of the housing 6 via a frame. The output shaft end of the drive motor 72 is fixedly connected to the drive shaft 71. A spiral blade 73 is fixedly mounted on the right end face of the drive shaft 71. An air inlet pipe 74 communicating with the housing 6 is fixedly mounted on the left side wall of the insulation sleeve 61, and an air outlet pipe 75 communicating with the housing 6 is fixedly mounted on the right side wall of the insulation sleeve 61.
[0031] It should be noted that the worker can start the drive motor 72 to make the transmission shaft 71 drive the spiral blade 73 to rotate. With the cooperation of the inner wall of the housing 6, the low-pressure air from the outside can enter the housing 6 through the air inlet pipe 74 and be continuously transported to the right. Finally, the high-pressure gas is discharged through the air outlet pipe 75, so that the whole device can realize the function of compressing air.
[0032] Furthermore, the liquid cooling mechanism 8 includes a pressure accumulator 81 fixedly installed on the left side of the upper end face of the equipment base 1, and a cam 82 fixedly installed on the left end face of the adjusting screw 3. A piston plate 83 is slidably installed in the inner cavity of the pressure accumulator 81. An extension rod 84 is fixedly installed on the front end face of the piston plate 83. A return spring 85 is wound on the side wall of the extension rod 84. A liquid storage box 86 is also fixedly installed on the left side of the upper end face of the equipment base 1. A connecting ring 87 is rotatably installed on the left side wall of the drive shaft 71. A through hole 711 is opened in the inner cavity of the connecting ring 87 on the side wall of the drive shaft 71. The drive shaft 71 is hollow and connected to the spiral blade rod 73. A spiral heat exchange pipe 731 is provided in the inner cavity of the spiral blade rod 73. A return pipe 88 is fixedly installed on the right end face of the spiral blade rod 73. The return pipe 88 is rotatably connected to the housing 6.
[0033] One end of the return spring 85 is fixedly installed on the side wall of the piston plate 83, and the other end is fixedly installed on the inner side wall of the accumulator box 81. The extension rod 84 is slidably connected to the accumulator box 81 and abuts against the side wall of the cam 82. The front end face of the accumulator box 81 is fixedly installed with an inlet pipe 811 that communicates with the liquid storage box 86. The inner cavity of the inlet pipe 811 is provided with a one-way water valve that leads to the inner cavity of the accumulator box 81. The upper end face of the accumulator box 81 is fixedly installed with an outlet pipe 812 that communicates with the connecting ring 87. The inner cavity of the outlet pipe 812 is provided with a one-way water valve that leads to the inner cavity of the connecting ring 87.
[0034] It should be noted that when the adjusting screw 3 rotates, it drives the cam 82 to rotate. The cam 82 drives the extension rod 84 to make the piston plate 83 slide back and forth in the inner cavity of the accumulator box 81. When the piston plate 83 moves to the front of the inner cavity of the accumulator box 81, the coolant in the inner cavity of the liquid storage box 86 can enter the inner cavity of the accumulator box 81 through the liquid inlet pipe 811. When the piston plate 83 moves to the rear of the inner cavity of the accumulator box 81, the coolant in the accumulator box 81 can enter the inner cavity of the connecting ring 87 through the liquid outlet pipe 812, and then enter the spiral blade 73 through the through hole 711. At this time, through the setting of the heat exchange pipe 731 in the spiral blade 73, the coolant can fully contact the inner wall of the spiral blade 73, thereby removing the heat generated by the spiral blade 73 during operation, thus greatly improving the cooling efficiency of the entire device.
[0035] Working principle: The worker can start the adjusting motor 44 to rotate the adjusting worm 45. The adjusting worm 45 will drive the adjusting worm wheel 46 to rotate the adjusting screw 3. Since the mounting plate 42 is threadedly connected to the adjusting screw 3, under the constraint of the limit rod 41, the mounting plate 42 will move left and right on the side wall of the adjusting screw 3, and continuously change the position of the cooling fan 43 to achieve the function of large-area air cooling of the casing 6.
[0036] When the adjusting screw 3 rotates, it drives the cam 82 to rotate. The cam 82 drives the extension rod 84 to make the piston plate 83 slide back and forth in the inner cavity of the accumulator box 81. When the piston plate 83 moves to the front of the inner cavity of the accumulator box 81, the coolant in the inner cavity of the liquid storage box 86 can enter the inner cavity of the accumulator box 81 through the liquid inlet pipe 811. When the piston plate 83 moves to the rear of the inner cavity of the accumulator box 81, the coolant in the accumulator box 81 can enter the inner cavity of the connecting ring 87 through the liquid outlet pipe 812, and then enter the spiral blade 73 through the through hole 711. At this time, through the setting of the heat exchange pipe 731 in the spiral blade 73, the coolant can fully contact the inner wall of the spiral blade 73, thereby removing the heat generated by the spiral blade 73 during operation, thus greatly improving the cooling efficiency of the entire device.
[0037] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.
Claims
1. A high-efficiency cooled screw air compressor, comprising a base (1), characterized in that: The equipment base (1) has upright plates (2) fixedly installed on the front and rear sides of the upper end face. An adjusting screw (3) is rotatably installed between the two upright plates (2) on the front side. A wind-cooling mechanism (4) is provided on the side wall of the adjusting screw (3). Support plates (5) are fixedly installed on the left and right sides of the middle part of the upper end face of the equipment base (1). A housing (6) is fixedly installed between the support plates (5) on the left and right sides. A pressurizing mechanism (7) is provided in the inner cavity of the housing (6). A liquid cooling mechanism (8) is provided on the left end face of the adjusting screw (3). The liquid cooling mechanism (8) includes a pressure accumulator (81) fixedly installed on the left side of the upper end face of the equipment base (1), and a cam (82) fixedly installed on the left end face of the adjusting screw (3). A piston plate (83) is slidably installed in the inner cavity of the pressure accumulator (81). An extension rod (84) is fixedly installed on the front end face of the piston plate (83). A return spring (85) is wound around the side wall of the extension rod (84). A liquid storage box (86) is also fixedly installed on the left side of the upper end face of the equipment base (1). A connecting ring (87) is rotatably installed on the left side wall of the drive shaft (71). A through hole (711) is opened in the inner cavity of the connecting ring (87) on the side wall of the drive shaft (71). The drive shaft (71) is hollow and connected to the spiral blade (73). A spiral heat exchange pipe (731) is provided in the inner cavity of the spiral blade (73). A return pipe (88) is fixedly installed on the right end face of the spiral blade (73). The return pipe (88) is rotatably connected to the casing (6).
2. The high-efficiency cooled screw air compressor according to claim 1, characterized in that: The air-cooling mechanism (4) includes a limiting rod (41) rotatably mounted between the two rear upright plates (2) and a mounting plate (42) slidably mounted on the side wall of the limiting rod (41). A cooling fan (43) is fixedly mounted in the inner cavity of the mounting plate (42). An adjusting motor (44) is fixedly mounted on the upper front right side of the equipment base (1) via a frame. An adjusting worm gear (45) is fixedly mounted on the output shaft end of the adjusting motor (44). An adjusting worm wheel (46) is meshed with the lower part of the adjusting worm gear (45).
3. The high-efficiency cooled screw air compressor according to claim 2, characterized in that: The adjusting worm gear (46) is fixedly installed on the right end face of the adjusting screw (3), and the mounting plate (42) is threadedly connected to the adjusting screw (3). The mounting plate (42) is located below the housing (6).
4. The high-efficiency cooled screw air compressor according to claim 1, characterized in that: A heat insulation sleeve (61) is fixedly installed on the side wall of the housing (6), and a circulating water inlet (62) is fixedly installed in the middle of the front end face of the heat insulation sleeve (61). The space between the housing (6) and the heat insulation sleeve (61) is filled with clean water.
5. A high-efficiency cooled screw air compressor according to claim 4, characterized in that: The pressurization mechanism (7) includes a drive shaft (71) rotatably mounted in the middle of the left side wall of the housing (6), and a drive motor (72) fixedly mounted on the left side wall of the housing (6) via a frame. The output shaft end of the drive motor (72) is fixedly connected to the drive shaft (71). A spiral blade (73) is fixedly mounted on the right end face of the drive shaft (71). An air inlet pipe (74) communicating with the housing (6) is fixedly mounted on the left side wall of the insulation sleeve (61), and an air outlet pipe (75) communicating with the housing (6) is fixedly mounted on the right side wall of the insulation sleeve (61).
6. The high-efficiency cooled screw air compressor according to claim 1, characterized in that: One end of the return spring (85) is fixedly installed on the side wall of the piston plate (83), and the other end is fixedly installed on the inner side wall of the accumulator box (81). The extension rod (84) is slidably connected to the accumulator box (81). The extension rod (84) abuts against the side wall of the cam (82). The front end face of the accumulator box (81) is fixedly installed with an inlet pipe (811) that communicates with the liquid storage box (86). The inner cavity of the inlet pipe (811) is provided with a one-way water valve that leads to the inner cavity of the accumulator box (81). The upper end face of the accumulator box (81) is fixedly installed with an outlet pipe (812) that communicates with the connecting ring (87). The inner cavity of the outlet pipe (812) is provided with a one-way water valve that leads to the inner cavity of the connecting ring (87).
Citation Information
Patent Citations
Screw air compressor for quick freezing of tilapia mossambica
CN216518638U