Snail fan module

Abstract

The invention discloses a snail fan module, and relates to the field of fans, the snail fan module comprises a fan shell, the fan shell is in a snail shape, an air blowing port and an air suction port are formed in the fan shell, and the snail fan module further comprises a rotating shaft rotationally connected in the fan shell; the driving motor is fixedly installed on the side, away from the air suction port, of the shell wall of the fan shell, and the output end of the driving motor is fixedly connected with the rotating shaft; the working temperature of the compressor is reduced through effective heat dissipation, the problems that mechanical performance of parts in the compressor is reduced due to high temperature and the like are reduced, meanwhile, in the process that refrigerant cooling capacity is used for cooling blown-out airflow, low-temperature and low-pressure refrigerants absorb heat in the heat exchange pipes, preheating of refrigerant gas is achieved, and the heat exchange efficiency is improved. Therefore, the compression efficiency of the compressor is improved, the power consumption of unit refrigerating capacity is reduced, the energy efficiency ratio of the whole refrigerating cycle is improved, and the refrigerating system is more energy-saving and efficient.

Description

Technical Field

[0001] The present invention belongs to the technical field of fans, and particularly relates to a snail fan module. Background Art

[0002] In a refrigeration and air-conditioning system, as a core component, the stable operation of the compressor is crucial. However, during the operation of the compressor, a large amount of heat will be generated due to factors such as mechanical friction and gas compression. If this heat cannot be dissipated in a timely and effective manner, a series of serious problems will occur.

[0003] The traditional way to dissipate heat from the compressor is usually to set up heat dissipation channels inside the compressor and make the coolant circulate in the heat dissipation channels. And an external radiator and a fan are installed on the compressor. Multiple heat dissipation fins are arranged on the surface of the radiator. When the coolant with an increased temperature passes through the radiator, the fan will cool the coolant in combination with the heat dissipation fins, so as to ensure that the coolant continuously dissipates heat from the compressor.

[0004] However, with the continuous increase in the power of the compressor, more and more heat is generated, and the demand for heat dissipation is also increasing day by day. Using this heat dissipation method, although it can also have a certain heat dissipation effect on the compressor,

[0005] but the airflow blown by the traditional fan is relatively dispersed, and it may not be able to take away the heat in time, thus making the heat dissipation effect on the coolant relatively limited, affecting the normal operation of the compressor. And the existing heat dissipation technology is greatly affected by the ambient temperature. In a high-temperature environment, the temperature of the airflow blown by the traditional fan is relatively high itself, which will lead to a weakened ability to take away heat, and may even increase the ambient temperature around the compressor to a certain extent, further affecting the heat dissipation effect and resulting in a significant reduction in the heat dissipation efficiency.

[0006] Therefore, in view of the above technical problems, it is necessary to provide a snail fan module.

[0007] The information disclosed in this background art section is only intended to enhance the overall understanding of the present invention and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Invention

[0008] The purpose of the present invention is to provide a snail fan module, which can efficiently dissipate heat from the compressor by using the cold quantity of the refrigerant gas in the refrigeration system itself, reduce the temperature of the blown airflow and other functions, and preheat the refrigerant at the same time, so as to improve the energy efficiency ratio of the refrigeration cycle.

[0009] To achieve the above object, a specific embodiment of the present invention provides a snail fan module, which includes a fan housing. The fan housing is in the shape of a snail, and an air blowing port and an air suction port are formed on the fan housing. The snail fan module further includes: a rotating shaft rotatably connected inside the fan housing; a driving motor fixedly installed on a side of the fan housing wall away from the air suction port, and an output end of the driving motor is fixedly connected to the rotating shaft; a second fan blade plate circumferentially and equidistantly arranged on the rotating shaft; a heat exchange tube arranged inside the fan housing and spirally distributed in a circle outside the second fan blade plate. Wherein, the fan housing is installed at a position close to the compressor, and the air blowing port faces the radiator of the compressor. The inlet and outlet of the heat exchange tube both extend out of the fan housing. The inlet of the heat exchange tube is connected to the outlet of the low-temperature and low-pressure refrigerant gas pipeline in the refrigeration system, and the outlet of the heat exchange tube is connected to the inlet of the compressor suction pipe to form a closed-loop heat exchange path. By using the cold quantity of the low-temperature and low-pressure refrigerant gas in the refrigeration system itself, the air flow blown out from the air blowing port is cooled, and at the same time, the refrigerant gas is preheated.

[0010] In one or more embodiments of the present invention, a first air chamber and a second air chamber are arranged inside the fan housing. The first air chamber is arranged at a position close to the air suction port, and the second air chamber is arranged at a position close to the air blowing port. The rotating shaft horizontally penetrates through the first air chamber and the second air chamber. A plurality of first fan blade plates are fixedly connected circumferentially and equidistantly at a position of the rotating shaft inside the first air chamber. A connecting ring is sleeved outside the rotating shaft inside the second air chamber. Both the first fan blade plate and the second fan blade plate are fixedly connected to the connecting ring.

[0011] In one or more embodiments of the present invention, the size of the second fan blade plate is larger than that of the first fan blade plate.

[0012] In one or more embodiments of the present invention, a mounting ring is fixedly connected to a position on the fan housing close to the air suction port, and an intercepting filter plate is arranged on a side of the mounting ring away from the fan housing.

[0013] In one or more embodiments of the present invention, a driving shell is fixedly connected inside the mounting ring through a support plate. A rotating disk is rotatably connected inside the driving shell through a driving rod. One end of the driving rod away from the air inlet extends out of the driving shell and is fixedly connected to the intercepting filter plate. The intercepting filter plate is rotatably connected to the mounting ring. A plurality of slots are circumferentially and equidistantly formed on the rotating disk. A sealing plate is slidably connected inside the slot. A plurality of tension springs are equidistantly arranged inside the slot. Two ends of the tension spring are respectively fixedly connected to the slot and the sealing plate. The sealing plate is slidably attached to the inner wall of the driving shell under the elastic force of the tension spring. The driving shell is symmetrically and staggeredly provided with an air inlet and an air outlet. The air inlet of the driving shell is communicated with the outlet of the heat exchange tube through a connecting air pipe. The air outlet of the driving shell is communicated with the inlet of the suction pipe of the compressor through an air delivery pipe.

[0014] In one or more embodiments of the present invention, the axis of the driving rod is located below the axis of the driving shell. When the refrigerant gas after preheating treatment enters the driving shell, as the rotating disk rotates, the space where the refrigerant gas is located will continuously become smaller. Therefore, the refrigerant gas will be compressed, and then the refrigerant gas is preheated for the second time.

[0015] In one or more embodiments of the present invention, the driving shell is a vacuum adiabatic shell.

[0016] In one or more embodiments of the present invention, a self-resetting airbag is fixedly connected to one side of the driving shell away from the air outlet. An air suction pipe is connected to the air inlet of the self-resetting airbag. The suction end of the air suction pipe is arranged at the cold air outlet of the refrigeration system. An exhaust pipe is connected to the air outlet of the self-resetting airbag. The air outlet of the exhaust pipe is connected to a jet pipe. The jet pipe is arranged at a position close to the intercepting filter plate.

[0017] In one or more embodiments of the present invention, the rotating disk is an alumina ceramic disk, and the surfaces of the driving shell and the rotating disk in contact with each other are both smooth surfaces.

[0018] In one or more embodiments of the present invention, a plurality of jet nozzles are equidistantly connected to the jet pipe. The jet orifice of the jet nozzle obliquely faces upwards towards the intercepting filter plate, and the flow direction of the gas ejected by the jet nozzle is opposite to the rotation direction of the intercepting filter plate.

[0019] Compared with the prior art, a snail fan module of the present invention reduces the working temperature of the compressor through effective heat dissipation, and reduces problems such as the decline of the mechanical properties of internal components of the compressor, the aging of seals, and the deterioration of lubricating oil caused by high temperature, thereby extending the service life of the compressor. At the same time, in the process of using the cooling capacity of the refrigerant to cool the blown air flow, the low-temperature and low-pressure refrigerant absorbs heat in the heat exchange tube, realizing the preheating of the refrigerant gas. When the preheated refrigerant gas enters the compressor cylinder, the molecular thermal motion intensifies and the internal energy increases. According to the thermodynamics principle, when the compressor compresses and does work on it, compared with the case without preheating, the gas is more likely to reach the high-temperature and high-pressure state, and the work required for the compression process is relatively reduced. This not only improves the compression efficiency of the compressor, but also reduces the power consumption per unit refrigerating capacity, improves the energy efficiency ratio of the entire refrigeration cycle, and makes the refrigeration system more energy-saving and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 Structural schematic of an embodiment of the present invention Figure 1 ;

[0022] Figure 2 Structural schematic of an embodiment of the present invention Figure 2 ;

[0023] Figure 3 Structural schematic diagram of the fan housing in an embodiment of the present invention;

[0024] Figure 4 Structural schematic of the interior of the fan housing in an embodiment of the present invention Figure 1 ;

[0025] Figure 5 Structural schematic of the interior of the fan housing in an embodiment of the present invention Figure 2 ;

[0026] Figure 6 Structural schematic of the rotating shaft, the first fan blade plate, the connecting ring and the second fan blade plate in an embodiment of the present invention Figure 1 ;

[0027] Figure 7 Structural schematic of the rotating shaft, the first fan blade plate, the connecting ring and the second fan blade plate in an embodiment of the present invention Figure 2 ;

[0028] Figure 8 Schematic diagram of a partial structure in an embodiment of the present invention;

[0029] Figure 9 Schematic diagram of the internal structure of the drive housing in an embodiment of the present invention.

[0030] Main reference numerals description:

[0031] 1. Fan housing; 101. Blowing port; 102. Suction port; 103. First air chamber; 104. Second air chamber; 105. Rotating shaft; 106. First fan blade plate; 107. Connecting ring; 108. Second fan blade plate; 109. Driving motor; 2. Heat exchange tube; 3. Mounting ring; 301. Intercepting filter plate; 302. Drive housing; 303. Connecting air pipe; 304. Air delivery pipe; 305. Driving rod; 306. Rotating disk; 307. Slotted opening; 308. Sealing plate; 309. Tension spring; 4. Self-resetting airbag; 401. Air extraction pipe; 402. Exhaust pipe; 403. Jet pipe; 404. Jet head. Detailed implementation manners

[0032] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Embodiment:

[0034] As Figures 1 - 5As shown in the figure, a snail fan module in an embodiment of the present invention includes a fan housing 1. The fan housing 1 is in the shape of a snail. An air blowing port 101 and an air suction port 102 are formed on the fan housing 1. It further includes: a rotating shaft 105, rotatably connected inside the fan housing 1; a driving motor 109, fixedly installed on one side of the fan housing 1 away from the air suction port 102, and the output end of the driving motor 109 is fixedly connected to the rotating shaft 105; a second fan blade plate 108, arranged at equal circumferential intervals on the rotating shaft 105; a heat exchange tube 2, arranged inside the fan housing 1 and spirally distributed in a circle outside the second fan blade plate 108. Among them, the fan housing 1 is installed at a position close to the compressor, and the air blowing port 101 faces the radiator of the compressor. The inlet and outlet of the heat exchange tube 2 both extend out of the fan housing 1. The inlet of the heat exchange tube 2 is connected to the outlet of the low-temperature and low-pressure refrigerant gas pipeline in the refrigeration system, and the outlet of the heat exchange tube 2 is connected to the inlet of the compressor suction pipe, forming a closed-loop heat exchange path. By using the cold energy of the low-temperature and low-pressure refrigerant gas in the refrigeration system itself, the air flow blown out from the air blowing port 101 is cooled, and at the same time, the refrigerant gas is preheated.

[0035] When using this snail fan module to dissipate heat from the compressor in the refrigeration system, first assemble the snail fan module. Install the second fan blade plate 108 on the rotating shaft 105 in an equidistant manner along the circumference to ensure the dynamic balance when the second fan blade plate 108 rotates. Then, rotatably connect the rotating shaft 105 inside the fan housing 1 through appropriate bearings and other components to ensure smooth rotation. On the side of the fan housing 1 away from the air suction port 102, firmly fix the driving motor 109 and reliably connect the output end of the driving motor 109 to the rotating shaft 105, such as by key connection or welding, etc., to ensure that the power of the driving motor 109 can be stably transmitted to the rotating shaft 105. Then, install the spirally distributed heat exchange tube 2 inside the fan housing 1 in a circle outside the second fan blade plate 108, paying attention to the firmness of the installation to prevent shaking during the operation of the fan. After assembly, the snail-shaped fan housing 1 can be installed at a suitable position close to the compressor to ensure that the air blowing port 101 accurately faces the radiator of the compressor. Finally, connect the inlet of the heat exchange tube 2 to the outlet of the low-temperature and low-pressure refrigerant gas pipeline in the refrigeration system, and the outlet to the inlet of the compressor suction pipe. The connection part should ensure good sealing to prevent refrigerant leakage, thereby forming a closed-loop heat exchange path.

[0036] After installation, debug the entire snail fan module, check whether the wiring of the drive motor 109 is correct to ensure normal startup and operation, and test whether the components such as the fan housing 1, the rotating shaft 105, and the second fan blade plate 108 are firmly installed without looseness to avoid safety problems during operation. Start the refrigeration system and the drive motor 109, observe the flow of the refrigerant in the heat exchange tube 2. During actual use, the pressure and temperature changes of the refrigerant can be monitored through devices such as pressure sensors and temperature sensors (not shown in the figure). Check the temperature and wind speed of the air flow blown out from the air outlet 101, and adjust the rotation speed of the drive motor 109 according to the actual situation to achieve the best heat dissipation and preheating effects.

[0037] When the coolant for the compressor circulates in the heat dissipation channels opened in the compressor and in the radiator to cool down the compressor, the drive motor 109 can be started at this time. The drive motor 109 will drive the rotation of the rotating shaft 105 and the second fan blade plate 108. At this time, air will be sucked into the fan housing 1 from the air inlet 102, and after being accelerated by the second fan blade plate 108, it will be blown out from the air outlet 101. The blown air flow directly acts on the radiator of the compressor to take away the heat of the coolant, thereby realizing the heat dissipation of the compressor. At the same time, since the heat exchange tube 2 is spirally distributed outside the second fan blade plate 108, the air flow entering the fan housing 1 will contact the heat exchange tube 2. The low-temperature and low-pressure refrigerant in the heat exchange tube 2 absorbs the heat in the air flow, further reducing the temperature of the blown air flow and enhancing the heat dissipation effect on the compressor. Compared with the traditional method of combining an external fan and a heat sink, the air flow blown out by this snail fan module is more concentrated and can accurately act on the key heat-generating parts of the compressor, significantly improving the heat dissipation efficiency.

[0038] During the process of cooling the blown air flow by using the cold energy of the refrigerant, the low-temperature and low-pressure refrigerant absorbs heat in the heat exchange tube 2, realizing the preheating of the refrigerant gas. When the preheated refrigerant gas enters the compressor cylinder, the molecular thermal motion intensifies and the internal energy increases. According to the thermodynamic principle, when the compressor compresses and does work on it, compared with the situation without preheating, the gas is more likely to reach the high-temperature and high-pressure state, and the work required for the compression process is relatively reduced. This not only improves the compression efficiency of the compressor but also reduces the power consumption per unit of refrigeration capacity, enhancing the energy efficiency ratio of the entire refrigeration cycle and making the refrigeration system more energy-efficient and efficient.

[0039] Through effective heat dissipation, the working temperature of the compressor is reduced, and problems such as the decline of the mechanical properties of the internal components of the compressor, the aging of seals, and the deterioration of lubricating oil caused by high temperature are reduced, extending the service life of the compressor. At the same time, due to the improvement of the suction efficiency of the compressor and the reduction of power consumption, the operating efficiency of the entire refrigeration and air-conditioning system or industrial gas compression system is improved, the stability is enhanced, the risk of system failures caused by poor heat dissipation is reduced, and the reliable operation of the system is ensured.

[0040] As shown Figures 3 - 7 in the figure, a first air chamber 103 and a second air chamber 104 are arranged inside the fan housing 1. The first air chamber 103 is arranged near the air inlet 102, and the second air chamber 104 is arranged near the air outlet 101. The rotating shaft 105 transversely penetrates through the first air chamber 103 and the second air chamber 104. A plurality of first fan blade plates 106 are fixedly connected at equal circumferential intervals at the position of the rotating shaft 105 inside the first air chamber 103. A connecting ring 107 is sleeved outside the rotating shaft 105 inside the second air chamber 104. Both the first fan blade plate 106 and the second fan blade plate 108 are fixedly connected to the connecting ring 107.

[0041] The size of the second fan blade plate 108 is larger than that of the first fan blade plate 106.

[0042] The first fan blade plate 106 has a smaller size and initially accelerates the air in the first air chamber 103, enabling the air to obtain a certain speed and kinetic energy. Subsequently, the air enters the second air chamber 104. The larger-sized second fan blade plate 108 rotates at a larger radius and can do further work on the air. Due to the large size of the second fan blade plate 108 and the wide sweeping area, at the same rotational speed, its linear velocity is greater, and the acceleration and pressurization effects on the air are more obvious. This two-stage acceleration and pressurization method makes the blown air flow faster and at a higher pressure, enhancing the air supply capacity and range of the fan, and can better meet the heat dissipation requirements of target objects such as compressor radiators.

[0043] As shown Figure 2 , Figure 4 , Figure 5 in the figure, an installation ring 3 is fixedly connected to the position of the fan housing 1 near the air inlet 102. A blocking filter plate 301 is arranged on the side of the installation ring 3 away from the fan housing 1.

[0044] The blocking filter plate 301 can effectively block impurities such as dust and debris from entering the fan interior. In the actual use environment, the air often contains various tiny particles. If these impurities enter the fan along with the air flow, they will adhere to components such as the fan blades and the rotating shaft 105. Long-term accumulation will increase component wear, affect the dynamic balance of the fan blades, cause the fan to vibrate more severely, generate more noise, and even damage the fan. The blocking filter plate 301 plays a role in preliminary filtration, ensuring the cleanliness of the internal components of the fan, extending the service life of the fan, and reducing maintenance costs.

[0045] As shown Figure 4 , Figure 5 , Figure 8 , Figure 9As shown in the figure, a drive housing 302 is fixedly connected inside the mounting ring 3 through a support plate. A rotating disk 306 is rotatably connected inside the drive housing 302 through a drive rod 305. One end of the drive rod 305 away from the air inlet 102 extends out of the drive housing 302 and is fixedly connected to the intercepting filter plate 301. The intercepting filter plate 301 is rotatably connected to the mounting ring 3. A plurality of slots 307 are circumferentially and equidistantly formed on the rotating disk 306. A sealing plate 308 is slidably connected inside the slots 307. A plurality of tension springs 309 are equidistantly arranged inside the slots 307. Two ends of the tension spring 309 are respectively fixedly connected to the slot 307 and the sealing plate 308. The sealing plate 308 is slidably attached to the inner wall of the drive housing 302 under the elastic force of the tension spring 309. Air inlets and air outlets are symmetrically and staggeredly formed on the drive housing 302. The air inlet of the drive housing 302 is connected to the outlet of the heat exchange tube 2 through a connecting air pipe 303. The air outlet of the drive housing 302 is connected to the inlet of the compressor suction pipe through a delivery air pipe 304.

[0046] When the refrigeration system operates, the refrigerant gas in the heat exchange tube 2 flows out from the outlet, enters the drive housing 302 through the connecting air pipe 303. The refrigerant gas flows inside the drive housing 302, drives the rotating disk 306 to rotate by pushing the sealing plate 308. The rotating disk 306 drives the intercepting filter plate 301 to rotate synchronously through the drive rod 305. During the rotation process, impurities attached to the intercepting filter plate 301 are thrown off under the action of centrifugal force, thereby realizing automatic cleaning. This design can continuously keep the intercepting filter plate 301 clean, maintain a good filtering effect all the time, and avoid affecting the air intake volume and heat dissipation performance of the fan due to impurity blockage of the filter plate.

[0047] The traditional intercepting filter plate 301 usually needs to be manually disassembled and cleaned regularly, which not only consumes manpower and time, but also may affect the operation of the equipment due to untimely cleaning. The automatic cleaning function of this structure greatly reduces the frequency and workload of manual maintenance, and reduces the maintenance cost. The equipment does not need to be frequently shut down for cleaning, can maintain continuous and stable operation, and improves the overall operation efficiency.

[0048] As Figure 9 shown in the figure, the axis of the drive rod 305 is located below the axis of the drive housing 302. After the pre-heated refrigerant gas enters the drive housing 302, as the rotating disk 306 rotates, the space where the refrigerant gas is located will continuously become smaller. Therefore, the refrigerant gas will be compressed, and then the refrigerant gas is pre-heated for the second time.

[0049] After the refrigerant gas that has undergone primary preheating enters the drive housing 302, it rotates with the rotating disk 306. As the gas space continuously decreases, it is compressed. The compression process does work on the refrigerant gas, increasing its internal energy and further raising its temperature, achieving secondary preheating. This makes the refrigerant gas entering the compressor have a higher temperature and a more stable state, requiring less additional energy during the compression process of the compressor. Consequently, the power consumption of the compressor in the entire refrigeration cycle is further reduced, the refrigeration efficiency is significantly improved, energy consumption is effectively reduced, and the economy of the refrigeration system is enhanced.

[0050] After the refrigerant gas at a higher temperature enters the compressor, it can reach the compression conditions required by the compressor more quickly. This means that during the compression process of the compressor, the pressure on the mechanical components is more uniform, reducing component wear and stress concentration caused by unstable gas conditions. The stable intake conditions help extend the service life of the compressor, reduce maintenance costs, improve the working reliability of the compressor, reduce the risk of failures during operation, and ensure the stable operation of the entire refrigeration or gas compression system.

[0051] It should be noted that the drive housing 302 is a vacuum-insulated housing. The vacuum-insulated structure greatly reduces heat conduction and convection, effectively preventing the heat of the refrigerant gas in the drive housing 302 from flowing out, ensuring its temperature stability, maintaining the secondary preheating effect, and also avoiding the influence of heat on the temperature of the blown air stream.

[0052] As Figure 2 、 Figure 4 、 Figure 5 、 Figure 8 、 Figure 9 As shown in

[0053] A self-resetting airbag 4 is fixedly connected to one side of the drive housing 302 away from the air outlet. An intake pipe 401 is connected to the intake port of the self-resetting airbag 4. The suction end of the intake pipe 401 is arranged at the cold air outlet of the refrigeration system. An exhaust pipe 402 is connected to the air outlet of the self-resetting airbag 4. The air outlet of the exhaust pipe 402 is connected to a jet pipe 403, and the jet pipe 403 is arranged near the interception filter plate 301.

[0054] It should be noted that the rotating disk 306 is an alumina ceramic disk, and the surfaces of the driving shell 302 in contact with the rotating disk 306 are all smooth surfaces. Alumina ceramics have a low thermal conductivity. Compared with materials with good thermal conductivity such as metals, they can effectively hinder heat transfer. Inside the driving shell 302, when the rotating disk 306 rotates, heat is generated due to the compression of the refrigerant gas. The alumina ceramic disk can reduce the conduction of this heat towards the self-resetting airbag 4, preventing the low-temperature gas in the self-resetting airbag 4 from absorbing too much heat and warming up, ensuring that the gas in the airbag always remains at a relatively low temperature, and providing a stable cold source for reducing the temperature of the blown air flow subsequently.

[0055] As Figure 2 , Figure 4 , Figure 5 shown, a plurality of jet nozzles 404 are connected to the jet pipe 403 at equal intervals. The jet orifices of the jet nozzles 404 face obliquely upward towards the intercepting filter plate 301, and the flow direction of the gas ejected from the jet nozzles 404 is opposite to the rotation direction of the intercepting filter plate 301.

[0056] Setting a plurality of jet nozzles 404 on the jet pipe 403 can make the ejected gas cover more comprehensively. The jet orifices face obliquely upward and the air flow is opposite to the rotation direction of the intercepting filter plate 301, which can impact the impurities above the intercepting filter plate 301. The reverse air flow and the centrifugal force cooperate to increase the acting force on the impurities, making it easier for the impurities to break away and ensuring the filtering performance of the intercepting filter plate 301.

[0057] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0058] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A snail fan module, characterized in that, It includes a fan housing, the fan housing is in a snail shape, and an air blowing port and an air suction port are provided on the fan housing. It further includes: A rotating shaft, rotatably connected inside the fan housing; A driving motor, fixedly installed on one side of the fan housing wall away from the air suction port, and the output end of the driving motor is fixedly connected to the rotating shaft; Second fan blade plates, arranged at equal circumferential intervals on the rotating shaft; A heat exchange tube, arranged inside the fan housing and spirally distributed in a circle outside the second fan blade plates; Among them, the fan housing is installed at a position close to the compressor, and the air blowing port faces the radiator of the compressor. The inlet and outlet of the heat exchange tube both extend out of the fan housing. The inlet of the heat exchange tube is connected to the outlet of the low-temperature and low-pressure refrigerant gas pipeline in the refrigeration system, and the outlet of the heat exchange tube is connected to the inlet of the compressor suction pipe, forming a closed-loop heat exchange path. By utilizing the cold quantity of the low-temperature and low-pressure refrigerant gas in the refrigeration system itself, the air flow blown out from the air blowing port is cooled, and at the same time, the refrigerant gas is preheated.

2. The snail fan module according to claim 1, characterized in that A first air chamber and a second air chamber are arranged inside the fan housing. The first air chamber is arranged at a position close to the air suction port, and the second air chamber is arranged at a position close to the air blowing port. The rotating shaft horizontally penetrates through the first air chamber and the second air chamber. A plurality of first fan blade plates are fixedly connected at equal circumferential intervals on the position of the rotating shaft located in the first air chamber. A connecting ring is sleeved outside the rotating shaft in the second air chamber. Both the first fan blade plates and the second fan blade plates are fixedly connected to the connecting ring.

3. The snail fan module according to claim 2, characterized in that, The size of the second fan blade plates is larger than that of the first fan blade plates.

4. A snail fan module according to claim 1, characterized in that, An installation ring is fixedly connected to the position of the fan housing close to the air suction port, and an intercepting filter plate is arranged on the side of the installation ring away from the fan housing.

5. A snail fan module according to claim 4, characterized in that A driving shell is fixedly connected inside the installation ring through a support plate. A rotating disk is rotatably connected inside the driving shell through a driving rod. One end of the driving rod away from the air suction port extends out of the driving shell and is fixedly connected to the intercepting filter plate. The intercepting filter plate is rotatably connected to the installation ring. A plurality of slots are arranged at equal circumferential intervals on the rotating disk. A sealing plate is slidably connected inside the slots. A plurality of tension springs are arranged at equal intervals inside the slots. Two ends of the tension spring are respectively fixedly connected to the slot and the sealing plate. The sealing plate is slidably attached to the inner wall of the driving shell under the elastic force of the tension spring. Air inlet ports and air outlet ports are symmetrically and staggeredly arranged on the driving shell. The air inlet port of the driving shell is connected to the outlet of the heat exchange tube through a connecting air pipe, and the air outlet port of the driving shell is connected to the inlet of the compressor suction pipe through an air delivery pipe.

6. The snail fan module according to claim 5, wherein, The axis of the driving rod is located below the axis of the driving shell. When the refrigerant gas after preheating treatment enters the driving shell, as the rotating disk rotates, the space where the refrigerant gas is located will continuously become smaller. Therefore, the refrigerant gas will be compressed, and further, the refrigerant gas is preheated for the second time.

7. The snail fan module according to claim 6, wherein The driving shell is a vacuum adiabatic shell.

8. A snail fan module according to claim 5, characterized in that, On one side of the driving shell away from the air outlet, a self - resetting airbag is fixedly connected. At the air inlet of the self - resetting airbag, an air extraction pipe is connected. The suction end of the air extraction pipe is arranged at the cold air outlet of the refrigeration system. At the air outlet of the self - resetting airbag, an exhaust pipe is connected. At the air outlet of the exhaust pipe, a jet pipe is connected. The jet pipe is arranged near the interception filter plate.

9. The snail fan module according to claim 8, wherein, The rotating disk is an alumina ceramic disk, and the surfaces of the driving shell in contact with the rotating disk are both smooth surfaces.

10. The snail fan module according to claim 8, characterized in that, A plurality of jet nozzles are equidistantly connected to the jet pipe. The jet orifices of the jet nozzles are obliquely upward facing the interception filter plate, and the flow direction of the gas ejected by the jet nozzles is opposite to the rotation direction of the interception filter plate.

Images