Dry-type oil-free screw compressor capable of rapidly dissipating heat

Abstract

The utility model discloses a dry type oil-free screw compressor capable of dissipating heat quickly, which comprises a main machine, the main machine is connected with a motor and is connected with an air storage tank through an air guide pipe, a heat dissipation device is arranged on the outer side of the main machine, a filter screen is arranged on the left side of the heat dissipation device, a filter plate is arranged on the right side of the filter screen, and a fan is arranged on the right side of the filter plate. A cooling cavity is formed in the right side of the fan and communicates with a heat dissipation cavity in the right side, semiconductor refrigeration assemblies are arranged on the front side and the rear side of the cooling cavity correspondingly, the cold ends of the semiconductor refrigeration assemblies face the cooling cavity, and a plurality of staggered heat conduction pieces are arranged in the cooling cavity to cool air; the heat dissipation device capable of being opened and closed is used for conducting heat dissipation on the compressor under different working conditions, active heat dissipation and passive heat dissipation are combined, rapid cooling of a main machine can be completed through the semiconductor chilling plate, the heat dissipation effect is improved, compressed gas is cooled, and later storage is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor heat dissipation, in particular to a dry-type oil-free screw compressor with rapid heat dissipation. Background Art

[0002] The medium in the compression chamber of the oil-free screw does not come into contact with the lubricating oil, so it is called an "oil-free screw". Because the compression chamber is dry, it is also called a "dry screw". Due to its structural characteristics of oil-free screws such as "yin and yang rotors do not contact", "screws are driven by synchronous gears", and "gear box oil is separated from the liquid in the compression chamber", it is still classified as an oil-free screw. However, it lacks the most important feature of a dry screw compressor, "the compressed gas medium does not come into contact with any other medium". The liquid injected into the compression chamber plays a role in lubrication, sealing, cooling and noise reduction. Of course, under the condition that "liquid medium does not react with the compressed medium", the cost of a liquid injection compressor is relatively lower than that of a dry screw.

[0003] The "compressor cooling fan" disclosed in Chinese Patent No.: 201720544296.2 increases the contact area between the cooling tube and the heat sink by setting a heat conductive sheet at the connection between the cooling tube and the heat sink, thereby enhancing the heat dissipation effect. However, the heat conductive structure is designed on the outside of the compressor, and the heat inside is only dissipated by the heat dissipation structure, which cannot achieve a good cooling effect. When the compressor is running at high intensity, the efficiency of passive heat dissipation is not enough. Therefore, the utility model provides a dry oil-free screw compressor with rapid heat dissipation to solve the problems raised in the above background technology. Utility Model Content

[0004] The utility model aims to provide a dry oil-free screw compressor with rapid heat dissipation to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A dry oil-free screw compressor with rapid heat dissipation comprises a main unit, the main unit is connected to a motor, the main unit is connected to an air storage tank through an air guide pipe, a heat dissipation device is arranged on the outside of the main unit, a filter screen is arranged on the left side of the heat dissipation device, a filter plate is arranged on the right side of the filter screen, a fan is arranged on the right side of the filter plate, a cooling cavity is arranged on the right side of the fan, the cooling cavity is connected to the heat dissipation cavity on the right side, semiconductor refrigeration components are arranged on the front and rear sides of the cooling cavity, the cold end of the semiconductor refrigeration component faces the cooling cavity, the air guide pipe is a serpentine tube, and heat exchange is performed in the cooling cavity;

[0007] The upper side and front and rear sides of the heat dissipation device are provided with heat dissipation windows, the right side of the heat dissipation device is provided with heat dissipation holes, the lower side of the upper heat dissipation window is slidably connected with a sliding cover, and the heat dissipation windows on the front and rear sides are rotatably connected with a plurality of baffles, one end of the baffle is rotatably connected to the heat dissipation device, the middle part of the baffle is slidably connected to a vertical connecting rod through a sliding groove, the lower end of the connecting rod is connected with a reset spring and an electromagnet assembly, the upper end of the connecting rod is rotatably connected to a cam, and the cam is rotatably connected to the sliding cover through a hinge rod, a temperature sensor is installed at the host, and the temperature sensor is electrically connected to the electromagnet assembly, when it is detected that the temperature at the host is higher than a predetermined value, the electromagnet assembly is started, and then the reset spring is stretched, driving the connecting rod to move downward, and driving the baffle to seal the heat dissipation windows on the front and rear sides through the sliding groove, and at the same time, through the transmission of the cam, the sliding cover is driven to slide, covering the heat dissipation window on the upper side, and directing the airflow to the right side, so as to assist in heat dissipation of the outside of the motor.

[0008] Preferably, a plurality of staggered heat conducting plates are provided in the cooling chamber to cool the air.

[0009] Preferably, a replacement window is provided on the upper side of the filter plate, and a cover plate is snapped onto the replacement window for easy maintenance.

[0010] Preferably, one end of the cam is rotatably connected to the heat dissipation device, and the cam is connected to the upper end of the connecting rod through a sliding groove to change the transmission direction and drive the sliding cover to move.

[0011] Preferably, the lower side of the main unit is connected to the gas storage tank via a plurality of fixing columns, so that the lower side of the main unit can also dissipate heat through the heat dissipation cavity.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model uses an openable and closable heat dissipation device to dissipate heat from the compressor under different working conditions, utilizes a combination of active and passive heat dissipation, and can quickly cool the host machine through a semiconductor refrigeration sheet, thereby improving the heat dissipation effect and cooling the compressed gas for later storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a dry oil-free screw compressor with rapid heat dissipation.

[0015] Figure 2 It is a schematic diagram of the front view and cross-section structure of a dry oil-free screw compressor with rapid heat dissipation.

[0016] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction.

[0017] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure of BB.

[0018] In the figure: 1. host; 2. motor; 3. gas storage tank; 4. air guide tube; 5. filter screen; 6. filter plate; 7. fan; 8. cooling chamber; 9. semiconductor refrigeration component; 10. heat conducting sheet;

[0019] 11. baffle; 12. connecting rod; 13. return spring; 14. electromagnet assembly; 15. heat dissipation chamber; 16. sliding cover; 17. cam. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 4 In the embodiment of the utility model, a dry oil-free screw compressor with rapid heat dissipation includes a main unit 1, the main unit 1 is connected to a motor 2, the main unit 1 is connected to an air storage tank 3 through an air guide pipe 4, a heat dissipation device is provided on the outside of the main unit 1, a filter screen 5 is provided on the left side of the heat dissipation device, a filter plate 6 is provided on the right side of the filter screen 5, a fan 7 is provided on the right side of the filter plate 6, a cooling chamber 8 is provided on the right side of the fan 7, the cooling chamber 8 is connected to the heat dissipation chamber 15 on the right side, semiconductor refrigeration components 9 are provided on both the front and rear sides of the cooling chamber 8, the cold end of the semiconductor refrigeration component 9 faces the cooling chamber 8, and a plurality of displaced heat conducting sheets 10 are provided in the cooling chamber 8 to cool the air, and the air guide pipe 4 is a serpentine tube, and heat exchange is performed in the cooling chamber 8;

[0022] A replacement window is provided on the upper side of the filter plate 6, and a cover plate is clamped at the replacement window for easy maintenance. Heat dissipation windows are provided on the upper side and front and rear sides of the heat dissipation device. A heat dissipation hole is provided on the right side of the heat dissipation device. A sliding cover 16 is slidably connected to the lower side of the upper heat dissipation window. A plurality of baffles 11 are rotatably connected to the heat dissipation windows on the front and rear sides. One end of the baffle 11 is rotatably connected to the heat dissipation device. The middle part of the baffle 11 is slidably connected to a vertical connecting rod 12 through a sliding groove. A return spring 13 and an electromagnet assembly 14 are connected to the lower end of the connecting rod 12. The upper end of the connecting rod 12 is rotatably connected to a cam 17, and the cam 17 is rotatably connected to the sliding cover 16 through a hinged rod. One end of the cam 17 is rotatably connected to the heat dissipation device. The cam 17 The upper end of the connecting rod 12 is connected through a slide groove to change the transmission direction, driving the sliding cover 16 to move. The lower side of the main engine 1 is connected to the gas storage tank 3 through a number of fixed columns, so that the lower side of the main engine 1 can also dissipate heat through the heat dissipation cavity 15. A temperature sensor is installed at the main engine 1, and the temperature sensor is electrically connected to the electromagnet assembly 14. When it is detected that the temperature at the main engine 1 is higher than a predetermined value, the electromagnet assembly 14 is started, and the reset spring 13 is stretched to drive the connecting rod 12 to move downward, and the baffle 11 is driven by the slide groove to seal the heat dissipation windows on the front and rear sides. At the same time, through the transmission of the cam 17, the sliding cover 16 is driven to slide, covering the heat dissipation window on the upper side, and directing the airflow to the right side to assist in heat dissipation of the outer side of the motor 2.

[0023] The working principle of the utility model is: when the device is in use, when the temperature detected by the temperature sensor is lower than the preset value, the heat is dissipated through the opened heat dissipation window. When the temperature at the host 1 is detected to be higher than the preset value, the electromagnet assembly 14 is started, and then the reset spring 13 is stretched, driving the connecting rod 12 to move downward, and the baffle 11 is driven by the slide groove to seal the heat dissipation windows on the front and rear sides. At the same time, through the transmission of the cam 17, the sliding cover 16 is driven to slide and cover the heat dissipation window on the upper side, and then the fan 7 is turned on, and the airflow passes through the cooling chamber 8, passes through the semiconductor refrigeration assembly 9, and then steadily decreases, and then the heat dissipation chamber 15 is used to cool the outside of the host 1, and finally the airflow is directed to the right side to assist in heat dissipation of the outside of the motor 2.

[0024] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dry oil-free screw compressor with rapid heat dissipation, comprising a main unit (1), the main unit (1) being connected to a motor (2), the main unit (1) being connected to an air storage tank (3) via an air guide pipe (4), a heat dissipation device being provided on the outside of the main unit (1), and characterized in that: A filter screen (5) is provided on the left side of the heat dissipation device, a filter plate (6) is provided on the right side of the filter screen (5), a fan (7) is provided on the right side of the filter plate (6), a cooling chamber (8) is provided on the right side of the fan (7), the cooling chamber (8) is connected to the heat dissipation chamber (15) on the right side, semiconductor refrigeration components (9) are provided on both the front and rear sides of the cooling chamber (8), the cold end of the semiconductor refrigeration component (9) faces the cooling chamber (8), and the air guide pipe (4) is a serpentine pipe; The heat dissipation device is provided with heat dissipation windows on the upper side and the front and rear sides, and a heat dissipation hole is provided on the right side of the heat dissipation device. The lower side of the upper heat dissipation window is slidably connected to a sliding cover (16), and the heat dissipation windows on the front and rear sides are rotatably connected to a plurality of baffles (11), one end of the baffle (11) is rotatably connected to the heat dissipation device, the middle part of the baffle (11) is slidably connected to a vertical connecting rod (12) through a sliding groove, the lower end of the connecting rod (12) is connected to a return spring (13) and an electromagnet assembly (14), the upper end of the connecting rod (12) is rotatably connected to a cam (17), and the cam (17) is rotatably connected to the sliding cover (16) through a hinged rod, and a temperature sensor is installed at the host (1), and the temperature sensor is electrically connected to the electromagnet assembly (14).

2. A dry oil-free screw compressor with rapid heat dissipation according to claim 1, characterized in that: A plurality of staggered heat conducting sheets (10) are arranged in the cooling cavity (8).

3. A dry oil-free screw compressor with rapid heat dissipation according to claim 1, characterized in that: A replacement window is provided on the upper side of the filter plate (6), and a cover plate is clamped at the replacement window.

4. A dry oil-free screw compressor with rapid heat dissipation according to claim 1, characterized in that: One end of the cam (17) is rotatably connected to the heat dissipation device, and the cam (17) is connected to the upper end of the connecting rod (12) via a sliding groove.

5. The dry oil-free screw compressor with rapid heat dissipation according to claim 1, characterized in that: The lower side of the main machine (1) is connected to the gas storage tank (3) via a plurality of fixing columns.

Images