An ejector type r718 refrigerator

Abstract

The application discloses an ejector type R718 refrigerating machine, which comprises an ejector pump and a condenser body, the ejector pump comprises a suction port, an inlet and an outlet, the inlet of the ejector pump is connected with a pressurizing pump, the outlet of the ejector pump is connected with a liquid reservoir, the suction port of the ejector pump is connected with an evaporator, a pipeline is arranged between the condenser body and the liquid reservoir, the outlet of the condenser body is connected with the evaporator, and a throttle valve is arranged between the condenser body and the evaporator. Compared with the existing compressor type refrigerating system, the ejector type R718 refrigerating machine has the advantages of fewer heating components, longer service life of equipment, flexible adjustment of evaporation temperature according to the working condition, wider adjustment range for refrigeration requirements in the above-zero temperature zone, no environmental pollution of the working medium, and wide application in various working conditions requiring refrigeration in the above-zero temperature zone.

Description

Technical Field

[0001] This invention relates to the field of refrigeration machines, specifically an ejector-type R718 refrigeration machine. Background Technology

[0002] Compression refrigeration systems rely on the phase change of refrigerant circulation to achieve heat transfer. The compressor compresses the low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure gas and sends it to the condenser to dissipate heat and liquefy. The liquid refrigerant is depressurized and cooled by the expansion valve and then enters the evaporator to absorb ambient heat and vaporize. The vaporized low-temperature, low-pressure gas returns to the compressor, and the cycle continues to carry away heat to complete the refrigeration.

[0003] Vapor compression refrigeration systems rely on the phase change of refrigerant circulation to transfer heat. A compressor compresses a low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure gas, which is then delivered to the system. A search revealed CN101067521A, a cluster of refrigeration and heating equipment, specifically a vapor compression refrigeration system. The document proposes using mechanical, electrical, or thermal energy as compensation to extract heat from low-grade energy sources—air, water, ground, or solar water heating—and deliver it to spaces or objects requiring higher temperatures. This aims to develop, exploit, and utilize low-grade energy to provide hot water for bathing and domestic washing, drinking water, winter heating, or industrial and agricultural production year-round for households or businesses.

[0004] In practical applications, vapor compression refrigeration systems work by compressing the refrigerant with a compressor, causing it to condense and release heat in the condenser. Then, after being depressurized by a throttling device, it absorbs heat and evaporates in the evaporator, completing the refrigeration cycle. However, existing vapor compression refrigeration systems can cause environmental pollution if excessive refrigerant is used. Summary of the Invention

[0005] The purpose of this invention is to provide an ejector-type R718 refrigerator to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, an ejector-type R718 refrigerator is provided, comprising an ejector pump and a condenser body. The ejector pump includes a suction port, an inlet, and an outlet. A pressure pump is connected to the inlet of the ejector pump, and a liquid receiver is connected to the outlet of the ejector pump. The suction port of the ejector pump is connected to an evaporator. A pipe is provided between the condenser body and the liquid receiver. The outlet of the condenser body is connected to the evaporator. A throttling valve is provided between the condenser body and the evaporator.

[0007] Furthermore, the condenser body is equipped with a prefabricated composite function heat exchange mechanism, and an end seat is fixed at the end of the condenser body. A medium outlet pipe and a medium inlet pipe are respectively installed on the condenser body, and the medium outlet pipe and the medium inlet pipe are distributed in a diagonal structure.

[0008] Furthermore, the medium outlet pipe is located above the condenser body, the medium inlet pipe is located below the condenser body, and both ends of the condenser body are fixed with connecting flanges.

[0009] Furthermore, the assembled composite heat exchange mechanism includes a quick-release seat connected to the condenser body via a connecting flange, and multiple sets of discharge pipes are evenly inserted on the quick-release seat. A low-temperature inlet pipe is also provided through the quick-release seat, and a collection pipe is fixed to the ends of the multiple sets of discharge pipes, and the collection pipe has a ring structure.

[0010] Furthermore, a high-temperature outlet pipe is fixed on the collection pipe, and the assembled composite functional heat exchange mechanism also includes multiple sets of heat exchange coils fixed inside the condenser body, and the heat exchange coils have an "S" shaped structure. One end of the heat exchange coil is connected to the discharge pipe, and the other end is connected to the inner inlet pipe.

[0011] Furthermore, the multiple sets of heat exchange coils are centrally symmetrical about the central axis of the condenser body, and the end of the inner inlet pipe away from the heat exchange coil is connected to a distribution pipe. The distribution pipe has a ring structure, and the low-temperature inlet pipe is connected to the high-temperature outlet pipe through the multiple sets of heat exchange coils and the distribution pipe.

[0012] Furthermore, multiple sets of connecting frames are equidistantly arranged on the multiple sets of heat exchange coils, and mounting seats are fixed on the connecting frames. Multiple sets of mounting tracks are also fixed on the inner wall of the condenser body, and the dimensions of the mounting tracks and mounting seats are compatible. The mounting seats are inserted into the mounting tracks, and the cross-sections of the mounting tracks and mounting seats are all dovetail-shaped structures. The assembled composite function heat exchange mechanism is positioned and installed in the condenser body through the multiple sets of mounting tracks and mounting seats.

[0013] Furthermore, multiple rows of deceleration interference components are fixed on the inner circumference of the condenser body, and the multiple rows of deceleration interference components are distributed alternately with the heat exchange coil.

[0014] Furthermore, the deceleration interference assembly includes multiple sets of deceleration interference teeth and connecting strips distributed along the length of the condenser body, and multiple sets of perforations are evenly opened on the deceleration interference teeth, and the multiple sets of deceleration interference teeth are fixedly connected by multiple sets of connecting strips.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This system uses R718 as the working fluid, relying on the decompression and expansion of the working fluid to absorb heat and achieve refrigeration. An ejector pump creates a low-pressure environment to meet the expansion heat exchange requirements. The ejector negative pressure is provided by a pressurizing pump, with the high-pressure liquid entering through the ejector pump's fluid inlet. As the high-pressure fluid flows through the ejector pump, it transforms into a high-speed jet, creating a vacuum negative pressure. This vacuum can be used to extract gas from low-pressure sections of the system, such as the evaporator, continuously maintaining the system's low-pressure condition. The gas and liquid phases simultaneously converge into the receiver, creating a high-pressure environment inside. The high-pressure gas separated from the receiver flows through the condenser, releasing heat and completing condensation. The separated high-pressure liquid is then transported via pipeline to the expansion valve, thus completing the entire refrigeration cycle. This solution abandons the traditional vapor compression refrigeration architecture, relying solely on the physical phase change characteristics of R718 at different pressures to achieve refrigeration. Compared to existing compressor-based refrigeration systems, it has fewer heat-generating components and a longer equipment lifespan. The evaporation temperature can be flexibly adjusted according to operating conditions, offering a wider range of adjustment for refrigeration needs in the above-zero temperature range. The working fluid is environmentally friendly and can be widely applied to various refrigeration machines requiring above-zero refrigeration conditions.

[0016] 2. This solution uses deceleration interference components, which are interspersed with heat exchange coils inside the condenser body, to buffer and regulate the flow speed of the high-temperature gaseous medium by using perforated deceleration interference teeth. Combined with diagonally distributed medium inlet and outlet pipes, the flow path of the refrigerant medium inside the cavity is extended. At the same time, multiple sets of centrally symmetrically arranged S-shaped heat exchange coils are used to significantly expand the effective heat exchange contact area of ​​the hot and cold media. This solution can steadily improve the heat exchange and condensation conversion efficiency of the medium inside the condenser body, adapt to the high-pressure gas condensation conditions of the entire ejector-type R718 refrigerator, and ensure the stable operation of the system medium circulation condition.

[0017] 3. This solution uses a dovetail-shaped assembly track and assembly base to achieve internal positioning and support of the heat exchange coil. With the help of the connecting frame, the heat exchange coil structure is shaped. Then, the quick-release base and the connecting flange at the end of the condenser body are used to achieve modular and quick assembly and disassembly of the entire assembled composite function heat exchange mechanism. This can not only ensure the structural stability of the heat exchange mechanism during operation and reduce the damage to the heat exchange pipeline caused by equipment vibration, but also simplify the equipment assembly process and the maintenance procedures for cleaning internal pipelines and replacing faulty parts, thereby reducing the overall maintenance cost of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the system principle of the ejector-type R718 refrigerator of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 4 This is a schematic diagram of the internal structure of the condenser body of the present invention.Figure 1 ; Figure 5 This is a schematic diagram of the cryogenic inlet pipe and its connection structure of the present invention; Figure 6 This is a schematic diagram of the quick-release base and its connection structure of the present invention; Figure 7 This is a schematic diagram of the heat exchange coil and its connection structure of the present invention; Figure 8 This is a schematic diagram of the discharge pipe and its connection structure of the present invention; Figure 9 This is a schematic diagram of the deceleration interference tooth and its connection structure according to the present invention; Figure 10 This is a schematic diagram of the connection structure of the assembled composite functional heat exchange mechanism of the present invention. Figure 1 ; Figure 11 This is a schematic diagram of the connecting frame and its connecting structure of the present invention; Figure 12 This is a schematic diagram of the connection structure of the assembled composite functional heat exchange mechanism of the present invention. Figure 2 ; Figure 13 This is a schematic diagram of the inner inlet tube and its connection structure of the present invention; Figure 14 This is a schematic diagram of the cryogenic inlet pipe and its connection structure of the present invention; Figure 15 This is a cross-sectional view of the condenser body and the assembled composite functional heat exchange mechanism of the present invention.

[0019] The following are the labeling elements in the diagram: 1. Evaporator; 2. Ejector pump; 3. Booster pump; 4. Receiver; 5. Pipeline; 6. Throttling valve; 100. Condenser body; 11. Medium outlet pipe; 12. Medium inlet pipe; 13. End seat; 14. Connecting flange; 15. Assembly rail; 16. Deceleration interference assembly; 161. Deceleration interference gear; 162. Connecting strip; 200. Assembled multi-functional heat exchange mechanism; 20. Quick-release seat; 21. Low-temperature inlet pipe; 210. Inner inlet pipe; 2101. Distribution pipe; 211. Heat exchange coil; 212. Discharge pipe; 22. High-temperature outlet pipe; 221. Collection pipe; 23. Connecting frame; 24. Assembly base. Detailed Implementation

[0020] Please see Figure 1 — Figure 15This invention provides an ejector-type R718 refrigerator, including an ejector pump 2 and a condenser body 100. The ejector pump 2 includes a suction port, an inlet, and an outlet. The inlet of the ejector pump 2 is connected to a pressure pump 3, and the outlet of the ejector pump 2 is connected to a liquid receiver 4. The suction port of the ejector pump 2 is connected to an evaporator 1. A pipe 5 is provided between the condenser body 100 and the liquid receiver 4. The outlet of the condenser body 100 is connected to the evaporator 1, and a throttling valve 6 is provided between the condenser body 100 and the evaporator 1.

[0021] Working principle: The throttle valve 6 includes a valve body and a throttle orifice plate disposed within the valve body, with multiple throttle orifices on the orifice plate. The liquid reservoir 4 has a gas outlet and a liquid outlet. The liquid outlet of the liquid reservoir 4 is connected to the booster pump 3, and the gas outlet of the liquid reservoir 4 is connected to the throttle valve 6 via a pipe 5. The liquid reservoir 4 has independent gas and liquid outlets, and the liquid outlet of the liquid reservoir 4 is connected to the booster pump 3 via a pipe 5. The gas outlet and liquid outlet are arranged independently, which can deliver the gaseous and liquid phase media after gas-liquid separation to different system loops, effectively preventing the gas-liquid mixture from flowing into the booster pump 3 and causing cavitation problems, and ensuring the long-term stable and safe operation of the booster pump 3. The throttling valve 6 includes a valve body and a throttling orifice plate assembled in the inner cavity of the valve body. The throttling orifice plate has several throttling orifices. The multi-hole throttling structure can disperse the liquid medium into tiny droplets, increase the heat exchange contact area between the droplets and the inner wall of the evaporator 1, significantly improve the atomization effect of the medium, and enhance the evaporation heat absorption efficiency.

[0022] This system uses R718 as the working fluid, relying on the working fluid's pressure reduction and expansion to absorb heat and achieve refrigeration. The ejector pump 2 is used to create a low-pressure environment to meet the expansion heat exchange conditions. The ejector negative pressure is provided by the pressurized liquid from the pressurizing pump 3. The high-pressure liquid is introduced from the fluid inlet of the ejector pump 2. When the high-pressure fluid flows through the ejector pump 2, it is converted into a high-speed jet. The high-speed jet forms a vacuum negative pressure, which can extract gas from the low-pressure section of the system, such as the evaporator 1, and continuously maintain the system's low-pressure condition. The gas and liquid two-phase media synchronously flow into the liquid receiver 4 and form a high-pressure environment inside. The high-pressure gas separated from the liquid receiver 4 flows through the condenser body 100 to release heat and complete condensation. The separated high-pressure liquid is transported to the throttling valve 6 through the pipeline 5, thus completing the entire refrigeration cycle. This solution abandons the traditional vapor compression refrigeration architecture, relying solely on the physical phase change characteristics of R718 under different pressures to achieve refrigeration. Compared to existing compressor-based refrigeration systems, it has fewer heat-generating components and a longer equipment lifespan. The evaporation temperature can be flexibly adjusted according to operating conditions, providing a wider range of adjustment for refrigeration needs in the above-zero temperature range. The working fluid is environmentally friendly and can be widely applied to various refrigeration machines requiring above-zero refrigeration conditions. The specific operating mode and connection structure of the condenser body 100 are as follows.

[0023] In a preferred embodiment, a modular composite heat exchange mechanism 200 is installed inside the condenser body 100, and an end seat 13 is fixed at the end of the condenser body 100. A medium outlet pipe 11 and a medium inlet pipe 12 are respectively installed on the condenser body 100, and the medium outlet pipe 11 and the medium inlet pipe 12 are distributed in a diagonal structure.

[0024] The medium outlet pipe 11 is located above the condenser body 100, the medium inlet pipe 12 is located below the condenser body 100, and both ends of the condenser body 100 are fixed with connecting flanges 14.

[0025] The assembled composite function heat exchange mechanism 200 includes a quick-release seat 20 connected to the condenser body 100 via a connecting flange 14, and multiple sets of discharge pipes 212 are evenly inserted on the quick-release seat 20. A low temperature inlet pipe 21 is also provided through the quick-release seat 20. A collection pipe 221 is fixed at the end of the multiple sets of discharge pipes 212, and the collection pipe 221 has a ring structure.

[0026] A high-temperature outlet pipe 22 is fixed on the collection pipe 221. The assembled composite function heat exchange mechanism 200 also includes multiple sets of heat exchange coils 211 fixed in the condenser body 100. The heat exchange coils 211 have an "S" shaped structure. One end of the heat exchange coil 211 is connected to the discharge pipe 212, and the other end is connected to the inner inlet pipe 210.

[0027] Furthermore, the multiple sets of heat exchange coils 211 are centrally symmetrical about the central axis of the condenser body 100, and the end of the inner inlet pipe 210 away from the heat exchange coils 211 is connected to a distribution pipe 2101. The distribution pipe 2101 is annular in structure, and the low temperature inlet pipe 21 is connected to the high temperature outlet pipe 22 through the multiple sets of heat exchange coils 211 and the distribution pipe 2101.

[0028] Furthermore, multiple sets of connecting brackets 23 are equidistantly arranged on multiple sets of heat exchange coils 211, and mounting bases 24 are fixed on the connecting brackets 23. Multiple sets of mounting rails 15 are also fixed on the inner wall of the condenser body 100, and the dimensions of the mounting rails 15 and the mounting bases 24 are compatible. The mounting bases 24 are inserted into the mounting rails 15. The cross-sections of the mounting rails 15 and the mounting bases 24 are both dovetail-shaped structures. The assembled composite function heat exchange mechanism 200 is positioned and installed in the condenser body 100 through multiple sets of mounting rails 15 and mounting bases 24.

[0029] Multiple rows of deceleration interference components 16 are fixed on the inner circumference of the condenser body 100, and the multiple rows of deceleration interference components 16 are distributed alternately with the heat exchange coil 211.

[0030] The deceleration interference assembly 16 includes multiple sets of deceleration interference teeth 161 and connecting strips 162 distributed along the length of the condenser body 100. Multiple sets of through holes are evenly opened on the deceleration interference teeth 161, and the multiple sets of deceleration interference teeth 161 are fixedly connected by multiple sets of connecting strips 162.

[0031] The working principle of the condenser body 100 is as follows: the high-temperature gaseous refrigerant flows into the condenser body 100 from the medium inlet pipe 12, and the low-temperature heat exchange medium is introduced into the assembled composite function heat exchange mechanism 200 from the low-temperature inlet pipe 21. The low-temperature medium flows through the quick-release seat 20, the distribution pipe 2101 and the inner inlet pipe 210 in sequence and then flows into multiple sets of S-shaped heat exchange coils 211. The low-temperature medium inside the heat exchange coils 211 continuously undergoes convective heat exchange with the high-temperature gaseous medium inside the condenser body 100, absorbing the heat carried by the high-temperature medium. After the medium is heated by heat exchange, it flows into each set of discharge pipes 212 along the heat exchange coils 211, and then gathers into the annular collection pipe 221 and is discharged outward from the high-temperature outlet pipe 22, completing the heat exchange medium circulation. After the high-temperature gaseous medium releases heat, it condenses into a liquid medium and finally flows out of the condenser body 100 from the diagonally arranged medium outlet pipes 11. The heat exchange coil 211 is fixed to the assembly seat 24 by the connecting bracket 23 and snapped onto the dovetail-shaped assembly track 15 on the inner wall of the condenser body 100, thus completing the overall positioning and installation of the assembled composite function heat exchange mechanism 200. The heat exchange mechanism as a whole is sealed and assembled with the quick-release seat 20 and the connecting flanges 14 at both ends of the condenser body 100. When the medium flows through the interior of the condenser body 100, it will come into contact with the deceleration interference components 16 distributed in phases. When the airflow passes through the perforations of the deceleration interference teeth 161, the flow rate is buffered and reduced. The connecting strip 162 fixes each set of deceleration interference teeth 161 into shape, stabilizes the interference structure, prolongs the residence time of the high-temperature gaseous medium inside the condenser body 100, and improves the heat exchange contact time. The end seat 13 provides a sealing and reinforcement function to the end of the condenser body 100. The diagonally distributed medium inlet pipe 12 and medium outlet pipe 11 lengthen the overall flow path of the medium, further ensuring sufficient heat exchange between the hot and cold media. This invention, relying on the diagonally arranged medium outlet pipe 11 and medium inlet pipe 12 in conjunction with the deceleration interference component 16, can slow down the flow velocity of the gaseous medium and extend the heat exchange path. Combined with multiple sets of centrally symmetrical S-shaped heat exchange coils 211, it expands the contact area between the hot and cold media, improving the overall heat exchange and condensation efficiency of the condenser body 100. The dovetail-structured assembly rail 15 and assembly seat 24 enable rapid positioning and assembly of the heat exchange coils 211. Combined with the connecting flange 14 and quick-release seat 20, it achieves quick assembly and disassembly of the assembled composite function heat exchange mechanism 200, reducing the operational difficulty of later equipment maintenance and parts replacement.

[0032] like Figures 2-15As shown: By setting deceleration interference components 16 alternately distributed with heat exchange coils 211 inside the condenser body 100, the flow speed of the high-temperature gaseous medium is buffered and controlled by the perforated deceleration interference teeth 161. Combined with the diagonally distributed medium inlet pipe 12 and medium outlet pipe 11, the flow path of the refrigerant medium inside the cavity is extended. At the same time, the effective heat exchange contact area of ​​the hot and cold medium is greatly expanded by multiple sets of centrally symmetrically arranged S-shaped heat exchange coils 211. This can steadily improve the heat exchange and condensation conversion efficiency of the medium inside the condenser body 100, adapt to the high-pressure gas condensation condition of the entire ejector-type R718 refrigerator, and ensure the stable operation of the system medium circulation condition.

[0033] like Figures 5-14 As shown: The heat exchange coil 211 is positioned and supported within the cavity by the dovetail-shaped assembly rail 15 and the assembly base 24. The heat exchange coil 211 is structurally shaped by the connecting frame 23. The modular assembly and disassembly of the entire assembly composite function heat exchange mechanism 200 is achieved by the quick-release base 20 and the connecting flange 14 at the end of the condenser body 100. This not only ensures the structural stability of the heat exchange mechanism during operation and reduces the damage to the heat exchange pipeline caused by equipment vibration, but also simplifies the equipment assembly process and the maintenance procedures for cleaning internal pipelines and replacing faulty parts, thereby reducing the overall maintenance cost of the equipment.

Claims

1. An ejector-type R718 refrigerator, comprising an ejector pump (2) and a condenser body (100), characterized in that: The ejector pump (2) includes an air intake, an inlet, and an outlet. The inlet of the ejector pump (2) is connected to a pressure pump (3), and the outlet of the ejector pump (2) is connected to a liquid reservoir (4). The air intake of the ejector pump (2) is connected to an evaporator (1). A pipe (5) is provided between the condenser body (100) and the liquid reservoir (4). The outlet of the condenser body (100) is connected to the evaporator (1), and a throttling valve (6) is provided between the condenser body (100) and the evaporator (1).

2. The ejector-type R718 refrigerator according to claim 1, characterized in that: The condenser body (100) is equipped with a prefabricated composite function heat exchange mechanism (200), and an end seat (13) is fixed at the end of the condenser body (100). A medium outlet pipe (11) and a medium inlet pipe (12) are respectively installed on the condenser body (100), and the medium outlet pipe (11) and the medium inlet pipe (12) are distributed in a diagonal structure.

3. The ejector-type R718 refrigerator according to claim 2, characterized in that: The medium outlet pipe (11) is located above the condenser body (100), the medium inlet pipe (12) is located below the condenser body (100), and both ends of the condenser body (100) are fixed with connecting flanges (14).

4. The ejector-type R718 refrigerator according to claim 3, characterized in that: The assembled composite function heat exchange mechanism (200) includes a quick-release seat (20) connected to the condenser body (100) via a connecting flange (14), and multiple sets of discharge pipes (212) are evenly inserted on the quick-release seat (20). A low temperature inlet pipe (21) is also provided through the quick-release seat (20). A collection pipe (221) is fixed at the end of the multiple sets of discharge pipes (212), and the collection pipe (221) has a ring structure.

5. The ejector-type R718 refrigerator according to claim 4, characterized in that: The high-temperature outlet pipe (22) is fixed on the collection pipe (221). The assembled composite function heat exchange mechanism (200) also includes multiple sets of heat exchange coils (211) fixed in the condenser body (100). The heat exchange coils (211) have an "S" shaped structure. One end of the heat exchange coil (211) is connected to the discharge pipe (212), and the other end is connected to the inner inlet pipe (210).

6. The ejector-type R718 refrigerator according to claim 5, characterized in that: The multiple sets of heat exchange coils (211) are centrally symmetrical about the central axis of the condenser body (100), and the end of the inner inlet pipe (210) away from the heat exchange coil (211) is connected to a distribution pipe (2101). The distribution pipe (2101) is annular. The low temperature inlet pipe (21) is connected to the high temperature outlet pipe (22) through the multiple sets of heat exchange coils (211) and the distribution pipe (2101).

7. The ejector-type R718 refrigerator according to claim 5, characterized in that: Multiple sets of connecting frames (23) are equidistantly arranged on multiple sets of heat exchange coils (211), and mounting seats (24) are fixed on the connecting frames (23). Multiple sets of mounting rails (15) are also fixed on the inner wall of the condenser body (100), and the dimensions of the mounting rails (15) and the mounting seats (24) are compatible. The mounting seats (24) are inserted into the mounting rails (15). The cross-sections of the mounting rails (15) and the mounting seats (24) are both dovetail-shaped. The assembled composite function heat exchange mechanism (200) is positioned and installed in the condenser body (100) through multiple sets of mounting rails (15) and mounting seats (24).

8. The ejector-type R718 refrigerator according to claim 7, characterized in that: Multiple rows of deceleration interference components (16) are fixed on the inner circumference of the condenser body (100), and the multiple rows of deceleration interference components (16) are respectively distributed alternately with the heat exchange coil (211).

9. The ejector-type R718 refrigerator according to claim 8, characterized in that: The deceleration interference assembly (16) includes multiple sets of deceleration interference teeth (161) and connecting strips (162) distributed along the length of the condenser body (100). Multiple sets of perforations are evenly opened on the deceleration interference teeth (161), and the multiple sets of deceleration interference teeth (161) are fixedly connected to each other by multiple sets of connecting strips (162).

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