A subway tunnel type air-cooled condenser device for air-cooled heat pump

Abstract

The application discloses a subway tunnel type air-cooled condenser device for air-cooled heat pumps, and relates to the technical field of temperature control equipment. The device comprises a mounting box, a heating assembly, a chassis, a cleaning assembly and a condensing mechanism. A screw compressor and an evaporator are sequentially arranged on the inside bottom of the mounting box from front to back. The condensing mechanism comprises an exhaust fan which is fixed to the top of the mounting box. Heat dissipation fins are arranged in the upper layer frame in the inside of the mounting box. The air compressor, the air inlet pipe and the flow guide are matched with each other, so that when the external environment temperature is high, the cooling speed of the refrigerant in the heat dissipation fins is enhanced, the refrigeration effect is improved, the connecting pipe, the heating assembly and the cleaning assembly are matched with each other, high-pressure steam is generated, the surface of the equipment is cleaned by using the steam, and the growth of plants around the equipment is inhibited.

Description

Technical Field

[0001] This invention relates to the field of temperature control equipment technology, specifically to a subway tunnel-type air-cooled condenser device for an air-cooled heat pump. Background Technology

[0002] Air-cooled heat pumps are temperature control devices that integrate cooling and heating functions. Because of their relatively simple structure, fewer operating parts, lower failure rate, and convenient maintenance, they are widely used in industrial, commercial, and public facilities sectors.

[0003] However, when existing air-cooled heat pumps are used in subway tunnel environments, they are mainly used for water circulation cooling in subway tunnel ventilation equipment. The installation location of air-cooled heat pumps used in tunnels is located in open environments such as mountains. When the air-cooled heat pump is cooling, when the external ambient temperature is high, the airflow absorbs limited heat when passing through the condenser heat dissipation fins, resulting in poor cooling effect on the refrigerant in the condenser. This, in turn, affects the heat absorption effect of the evaporator, leading to a problem of reduced cooling effect of the refrigerant on the water circulation system inside the evaporator. On the other hand, the long-term use of existing air-cooled heat pumps on mountains outside the tunnels is difficult to maintain and has a long maintenance cycle. Various deposits are easily accumulated on the surface of the equipment. At the same time, excessive vegetation growth around the equipment in the natural environment can easily accumulate rotten materials. These issues pose potential hazards to the operation of the equipment in hot weather and need to be addressed. Summary of the Invention

[0004] The purpose of this invention is to provide a subway tunnel-type air-cooled condenser device for air-cooled heat pumps, so as to solve the problems mentioned in the background art. The technical solution of this invention addresses the problem that the existing technical solutions are too simplistic and provides a solution that is significantly different from the existing technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a subway tunnel-type air-cooled condenser device for an air-cooled heat pump, comprising a mounting box, a heating assembly, a base frame, a cleaning assembly, and a condensation mechanism, wherein a screw compressor and an evaporator are sequentially installed from front to back on the bottom inner side of the mounting box;

[0006] The condensing mechanism includes an exhaust fan fixed to the top of the mounting box. A heat dissipation fin is installed in the upper shelf inside the mounting box. One end of a copper tube within the heat dissipation fin is connected to a screw compressor via a valve, pipe, and throttling element. The other end of the copper tube is connected to an evaporator via a multi-way valve, pipe, and throttling element. Exhaust boxes are fixed to both the front and rear sides of the upper shelf inside the mounting box. Intake pipes are connected to the inner cavities of the two exhaust boxes via pipes. An installation pipe is fixed to the outer side of the right end of the intake pipe. A fixing pipe is installed to the left side of the installation pipe. The fixing pipe is installed outside the exhaust boxes. A connecting pipe is fixed to the left side of the fixing pipe. A guide fluid is slidably disposed within the connecting pipe and connected to the fixing pipe via an electric actuator. An air compressor is connected to the lower ends of both installation pipes via pipes. The air compressor is fixed to the bottom inside the mounting box.

[0007] Preferably, a cleaning assembly is provided on the base frame, and the cleaning assembly is connected to the connecting pipe through a heating assembly, the heating assembly being used to provide steam to the cleaning assembly.

[0008] Preferably, the outer side of the air intake pipe is provided with multiple air intake holes at equal angles, the outer side of the air intake pipe is provided with an air intake groove for spiral air intake, and the diameter of the air intake pipe corresponds to the inner diameter of the fixed pipe.

[0009] Preferably, the guide fluid is designed in a conical shape, which is used to create a cold swirling airflow by the impact of spiral gas, and the maximum diameter of the guide fluid corresponds to the inner cavity of the fixed tube.

[0010] Preferably, the heating assembly includes two exhaust pipes, which are installed on the left side of the connecting pipe. A heating chamber is formed inside the wall of each exhaust pipe. The heating chamber is connected to a water supply tank through an upper valve port and a pipe. The water supply tank is installed on the top left side of the mounting box.

[0011] Preferably, the inner wall of the exhaust pipe is designed with a wave-shaped groove, which is used for rapid heating of the water in the heating chamber.

[0012] Preferably, the cleaning assembly includes four reciprocating screw rods, which are rotatably mounted in the four grooves on the top of the base frame. Slider rods are slidably sleeved on the outer sides of the four reciprocating screw rods. The top of the slider is rotatably connected to an air jet rod. A gear plate is fixed to the outer side of the lower shaft of the air jet rod. A rack meshes with the outer side of the gear plate. The rack is mounted on the top of the base frame. The top of the air jet rod is connected to the pressure relief valve port below the heating chamber through a rotary joint and a hose.

[0013] Preferably, the four reciprocating screw rods are connected by a transmission bevel gear, one of the four reciprocating screw rods is connected to a motor, and nozzles are vertically arranged on the outer side of the jet rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] This invention, by setting up an exhaust box, an intake pipe, a guide fluid, and an air compressor, addresses the issue that during cooling, when the external ambient temperature is high and the heat absorption effect of the airflow on the heat dissipation fins is poor, injects high-pressure airflow into the installation pipe via the air compressor. The airflow forms a high-pressure spiral gas through the intake pipe. By being blocked by the high-pressure spiral gas convection of the guide fluid, part of the airflow forms a low-temperature internal spiral gas, which enters the exhaust box through the inner pipe and the main pipe in the middle of the intake pipe. This allows the lower-temperature airflow to be drawn out of the exhaust box by the exhaust fan. The drawn-out low-temperature airflow rapidly absorbs heat through the heat dissipation fins, enhancing the cooling speed of the refrigerant inside the heat dissipation fins and improving the cooling effect of the equipment in high-heat environments.

[0016] This invention, through the coordinated arrangement of a guide fluid, a heating component, and a cleaning component, allows a portion of the airflow to form a low-temperature internal spiral gas, while another portion forms a high-pressure, high-temperature airflow that is discharged through a connecting pipe and an exhaust pipe. During this process, the high-temperature airflow contacts the wave-shaped pipe wall of the exhaust pipe, continuously heating the water in the heating chamber, causing it to form high-pressure steam. When the steam reaches a certain pressure, an electrically controlled pressure relief valve is opened, allowing the high-temperature steam to enter the jet rod and be ejected. In conjunction with the linkage of the cleaning component, the jet rod slides and rotates while spraying high-temperature steam, cleaning the surface of the mounting box with steam and simultaneously blowing on surrounding plants to inhibit their growth. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a rear-view schematic diagram of the overall internal structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of the mounting box of the present invention;

[0020] Figure 4 This is a schematic diagram of the heat dissipation fins, screw compressor, evaporator, and fixed pipe structure of the present invention.

[0021] Figure 5 This is a cross-sectional structural diagram of the mounting pipe, air inlet pipe, fixing pipe, connecting pipe, and heating component of the present invention;

[0022] Figure 6 This is a cross-sectional view of the installation pipe, air inlet pipe, fixing pipe, connecting pipe, and heating component of the present invention.

[0023] Figure 7 This is a schematic diagram of the base frame and cleaning assembly structure of the present invention;

[0024] Figure 8 for Figure 7 Enlarged view of point A in the middle;

[0025] Figure 9 for Figure 7 Enlarged view of point B in the middle;

[0026] Figure 10 This is a schematic diagram of the reciprocating screw rod, slider, air jet rod, and gear disc structure of the present invention.

[0027] In the diagram: 1. Mounting box; 2. Exhaust fan; 3. Heat dissipation fins; 4. Screw compressor; 5. Evaporator; 6. Exhaust box; 7. Inlet pipe; 8. Mounting pipe; 9. Fixing pipe; 10. Connecting pipe; 11. Fluid guide; 12. Electric actuator; 13. Air compressor; 14. Heating assembly; 141. Exhaust pipe; 142. Heating chamber; 143. Water tank; 15. Base frame; 16. Cleaning assembly; 161. Reciprocating screw rod; 162. Slider; 163. Air jet rod; 164. Gear plate; 165. Rack. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0029] Please see Figures 1 to 10This invention provides a technical solution: a subway tunnel-type air-cooled condenser device for an air-cooled heat pump, comprising an installation box 1, a heating assembly 14, a base frame 15, a cleaning assembly 16, and a condensing mechanism. A screw compressor 4 and an evaporator 5 are sequentially installed from front to back on the bottom inner side of the installation box 1. The condensing mechanism includes an exhaust fan 2 fixed to the top of the installation box 1. A heat dissipation fin 3 is installed in the upper shelf inside the installation box 1. One end of a copper tube inside the heat dissipation fin 3 is connected to the screw compressor 4 via a valve, pipe, and throttling element. The other end of the copper tube inside the heat dissipation fin 3 is connected to the evaporator 5 via a multi-way valve, pipe, and throttling element. Exhaust boxes 6 are fixed on both the front and rear sides of the upper shelf inside the installation box 1. The inner cavities of the two exhaust boxes 6 are connected to an intake pipe 7 via pipes. An installation pipe 8 is fixed to the outer side of the right end of the intake pipe 7, and a fixing pipe 9 is installed to the left side of the installation pipe 8. The outer side of the intake pipe 7 is inclined at an equal angle. Multiple air inlets are obliquely opened. The air inlet groove on the outside of the air inlet pipe 7 is used for spiral air intake. The diameter of the air inlet pipe 7 corresponds to the inner diameter of the fixed pipe 9. The fixed pipe 9 is installed on the outside of the exhaust box 6. A connecting pipe 10 is fixed on the left side of the fixed pipe 9. A guide fluid 11 is slidably arranged inside the connecting pipe 10. The guide fluid 11 is connected to the fixed pipe 9 through an electric push rod 12. The guide fluid 11 is designed to be conical. The conical design of the guide fluid 11 is used to form a cold vortex airflow by spiral gas impact. The maximum diameter of the guide fluid 11 corresponds to the inner cavity of the fixed pipe 9. The lower ports of the two mounting pipes 8 are connected to air compressors 13 through pipes. The air compressors 13 are fixed to the bottom inside the mounting box 1. The base frame 15 is fixed to the outside of the bottom of the mounting box 1. A cleaning component 16 is set on the base frame 15. The cleaning component 16 is connected to the connecting pipe 10 through a heating component 14. The heating component 14 is used to provide steam for the cleaning component 16.

[0030] During refrigeration, the screw compressor 4 pressurizes the refrigerant and injects it into the heat dissipation fins 3 through a four-way valve for heat release and condensation. The airflow is then exhausted by the open exhaust fan 2. The airflow enters through the exhaust box 6, absorbs heat as it passes through the heat dissipation fins 3, and is discharged with the exhaust fan 2. After this process, the high-pressure gaseous refrigerant in the heat dissipation fins 3 transforms into high-pressure liquid refrigerant, which then enters the evaporator 5 through pipes and a throttling element. There, it absorbs heat from the circulating water in the evaporator 5, forming low-pressure gaseous refrigerant that re-enters the screw compressor 4 for pressurization and circulation. During this process, when the external ambient temperature is high and the heat absorption effect of the airflow through the heat dissipation fins 3 is poor... The air compressor 13 is turned on by the controller system, and the high-pressure airflow is sent into the installation pipe 8. After entering, the high-pressure airflow forms a high-pressure spiral gas through the air inlet of the air inlet pipe 7 and moves forward to the guide fluid 11. After hitting the conical guide fluid 11, the airflow is obstructed and returns along the original path, forming a low-temperature inner spiral gas. It enters the exhaust box 6 from the middle of the air inlet pipe 7 and the pipeline. At this time, the low-temperature spiral gas is discharged and drawn in by the exhaust fan 2. During the process of passing through the heat dissipation fins 3, it absorbs heat quickly due to its low temperature, which accelerates the formation of high-pressure gas refrigerant into high-pressure liquid refrigerant. This enhances the cooling effect of the heat dissipation fins 3 on the refrigerant and improves the cooling effect of the equipment on the water circulation in the evaporator 5 under high external temperature environment. Example 2

[0031] Based on Example 1, please refer to Figures 1 to 10 The base frame 15 is fixed to the outer bottom of the mounting box 1. A cleaning assembly 16 is installed on the base frame 15. The cleaning assembly 16 includes four reciprocating screw rods 161, which are rotatably mounted in the four grooves on the top of the base frame 15. A slider 162 is slidably sleeved on the outer side of the four reciprocating screw rods 161. The top of the slider 162 is rotatably connected to an air jet rod 163. The four reciprocating screw rods 161 are connected to each other through a transmission bevel gear. One of the four reciprocating screw rods 161 is connected to a motor. Nozzles are vertically arranged on the outer side of the air jet rod 163. A gear plate 164 is fixed to the outer side of the lower shaft of the air jet rod 163. A rack 165 meshes with the outer side of the gear plate 164. The rack 165 is mounted on the top of the base frame 15. The cleaning assembly 16 is connected to the connecting pipe 10 via the heating assembly 14. The heating assembly 14 includes two exhaust pipes 141, which are installed on the left side of the connecting pipe 10. A heating chamber 142 is formed inside the wall of the exhaust pipe 141. The inner wall of the exhaust pipe 141 is designed with a wave-shaped groove for rapid heating of the water in the heating chamber 142. The heating chamber 142 is connected to a water supply tank 143 via an upper valve port and a pipe. The water supply tank 143 is installed on the top left side of the mounting box 1. The top of the jet rod 163 is connected to the pressure relief valve port below the heating chamber 142 via a rotary joint and a hose. The heating assembly 14 is used to provide steam to the cleaning assembly 16.

[0032] When the high-pressure spiral gas is obstructed by the conical guide 11, another part of the airflow forms a high-temperature, high-pressure airflow, which is then discharged after passing through the connecting pipe 10 and the exhaust pipe 141. During this process, the high-pressure, high-temperature airflow contacts the wave-shaped pipe wall of the exhaust pipe 141, continuously heating the water in the heating chamber 142. After the water in the heating chamber 142 reaches its boiling point and forms suitable high-pressure steam, the electrically controlled pressure relief valve below the exhaust pipe 141 opens, discharging the high-pressure steam into the jet rod 163 and ejecting it from the nozzle. The controller then activates the motor to drive the reciprocating spiral rod 161 synchronously. The rotation causes the slider 162 to drive the jet rod 163 to slide back and forth in the grooves on the four sides of the base frame 15. At the same time, during the movement of the jet rod 163, it slides through the meshing of the gear plate 164 and the rack 165, causing the jet rod 163 to rotate. The steam sprayed out performs steam cleaning on the surface of the installation box 1 and steam blowing on the plants outside the installation box 1 to inhibit their growth. When the water in the heating chamber 142 evaporates and the electric pressure relief valve can no longer detect the pressure, water is replenished into the heating chamber 142 by opening the electric valve of the water replenishment tank 143.

[0033] Working principle: When using this subway tunnel-type air-cooled condenser device for air-cooled heat pumps, during heating, the controller system first starts the screw compressor 4 to pressurize the refrigerant, and then injects the refrigerant into the evaporator 5 through the four-way valve to release heat and condense, heating the circulating water in the evaporator 5. When the refrigerant in the evaporator 5 releases heat and becomes liquid, the high-pressure liquid refrigerant is reduced to low-pressure liquid refrigerant after passing through the throttling element. Then it is sent into the heat dissipation fins 3 to vaporize and absorb heat to form low-temperature gaseous refrigerant, which is then sent into the compressor through the four-way valve to complete the heating refrigerant cycle. During this process, when the low-pressure liquid refrigerant is sent into the heat dissipation fins 3, the exhaust fan 2 rotates to draw airflow through the exhaust box 6. During this process, the external airflow enters the exhaust box 6 through the exhaust pipe 141 and the connecting pipe 10.

[0034] During refrigeration, the controller system starts the screw compressor 4 to pressurize the refrigerant and injects it into the heat dissipation fins 3 through a four-way valve for heat release and condensation. The airflow is then exhausted by the open exhaust fan 2. The airflow enters through the exhaust box 6, absorbs heat as it passes through the heat dissipation fins 3, and is discharged with the exhaust fan 2. After this process, the high-pressure gaseous refrigerant in the heat dissipation fins 3 forms a high-pressure liquid refrigerant, which then enters the evaporator 5 through pipes and a throttling element. There, it absorbs heat from the circulating water in the evaporator 5, forming a low-pressure gaseous refrigerant that re-enters the screw compressor 4 for pressurization and circulation. During this process, when the external ambient temperature is high and the heat absorption effect of the airflow through the heat dissipation fins 3 is poor, the controller system starts the air compressor 13, sending high-pressure airflow into the mounting pipe 8. After entering, the high-pressure airflow passes through the intake port of the intake pipe 7 and forms a high-pressure liquid refrigerant. The compressed spiral gas is guided forward by the guide fluid 11. After impacting the conical guide fluid 11, the airflow is obstructed and returns along the original path, forming a low-temperature inner spiral gas. This gas then enters the exhaust box 6 from the middle of the inlet pipe 7 and the pipe. At this time, the low-temperature spiral gas is drawn in and out by the exhaust fan 2. As it passes through the heat dissipation fins 3, it absorbs heat rapidly due to its low temperature, which accelerates the formation of high-pressure gas refrigerant into high-pressure liquid refrigerant. This enhances the cooling effect of the heat dissipation fins 3 on the refrigerant and improves the cooling effect of the equipment on the water circulation in the evaporator 5 under high external temperature conditions. During the above process, the controller activates the electric push rod 12 to adjust the position of the guide fluid 11 in the connecting pipe 10, thereby increasing the gap between the guide fluid 11 and the fixed pipe 9. The lower the temperature of the inner spiral gas formed, the higher the temperature of the inner spiral gas formed. In conjunction with the corresponding control of the controller system, the adaptive regulation of the cooling effect is completed.

[0035] In the above process, when the high-pressure spiral gas is obstructed by the conical guide 11, another part of the airflow forms a high-temperature, high-pressure airflow, which is discharged after passing through the connecting pipe 10 and the exhaust pipe 141. During this process, after the high-pressure, high-temperature airflow comes into contact with the wave-shaped pipe wall of the exhaust pipe 141, it continuously heats the water in the heating chamber 142. After the water in the heating chamber 142 reaches the boiling point and forms suitable high-pressure steam, the electrically controlled pressure relief valve below the exhaust pipe 141 opens, discharging the high-pressure steam into the jet rod 163 and spraying it out from the nozzle. The controller then starts the motor to drive the reciprocating spiral rod 1. 61 rotates synchronously, causing the slider 162 to drive the jet rod 163 to slide back and forth in the four-sided groove of the base frame 15. At the same time, during the movement of the jet rod 163, it rotates by meshing and sliding through the gear plate 164 and the rack 165, which in turn causes the jet rod 163 to rotate. The steam sprayed out performs steam cleaning on the surface of the installation box 1 and steam sprays the plants outside the installation box 1 to inhibit their growth. When the water in the heating chamber 142 evaporates and the electric pressure relief valve can no longer detect pressure, water is replenished into the heating chamber 142 by opening the electric valve of the water replenishment tank 143.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A subway tunnel type air-cooled condenser device for air-cooled heat pump, comprising a mounting box (1), a heating assembly (14), a chassis (15), a cleaning assembly (16) and a condensing mechanism, the inside bottom of the mounting box (1) is sequentially provided with a screw compressor (4) and an evaporator (5) from front to back; characterized in that The condensing mechanism comprises an exhaust fan (2) fixed on the top of the mounting box (1), a heat dissipation fin plate (3) is installed in the upper layer of the inside of the mounting box (1), one end of the copper pipe in the heat dissipation fin plate (3) is connected with the screw compressor (4) through a valve, a pipeline and a throttling element, the other end of the copper pipe in the heat dissipation fin plate (3) is connected with the evaporator (5) through a multi-way valve, a pipeline and a throttling element, the exhaust box (6) is fixed on the both sides of the upper layer of the inside of the mounting box (1), the inner cavities of the two exhaust boxes (6) are connected with an air inlet pipe (7) through a pipeline, the right outer side of the right end of the air inlet pipe (7) is fixedly provided with a mounting pipe (8), the left side of the mounting pipe (8) is provided with a fixed pipe (9), the fixed pipe (9) is installed on the outer side of the exhaust box (6), the left side of the fixed pipe (9) is fixedly provided with a connecting pipe (10), the connecting pipe (10) is slidably provided with a flow guide body (11), the flow guide body (11) is connected with the fixed pipe (9) through an electric push rod (12), the lower ports of the two mounting pipes (8) are connected with an air compressor (13) through a pipeline, and the air compressor (13) is fixed on the inside bottom of the mounting box (1). The chassis (15) is fixed on the bottom outer side of the mounting box (1), the cleaning assembly (16) is arranged on the chassis (15), the cleaning assembly (16) is connected with the connecting pipe (10) through the heating assembly (14), and the heating assembly (14) is used for providing steam for the cleaning assembly (16). A plurality of air inlet holes are formed on the outer side of the air inlet pipe (7) at equal angles, the outer side of the air inlet pipe (7) is provided with an air inlet groove for spiral air inlet, and the diameter of the air inlet pipe (7) corresponds to the diameter of the inner cavity of the fixed pipe (9). The flow guide body (11) is designed as a taper, the taper design of the flow guide body (11) is used for forming cold spiral airflow by spiral gas impact, and the maximum diameter of the flow guide body (11) corresponds to the inner cavity of the fixed pipe (9).

2. The subway tunnel type air-cooled condenser device for air-cooled heat pump according to claim 1, characterized in that: The heating assembly (14) comprises two exhaust pipes (141), the two exhaust pipes (141) are installed on the left side of the connecting pipe (10), the exhaust pipe (141) is provided with a heating cavity (142) in the pipe wall, the heating cavity (142) is connected with a water supply tank (143) through an upper valve port and a pipeline, and the water supply tank (143) is installed on the top left side of the mounting box (1).

3. The subway tunnel type air-cooled condenser device for air-cooled heat pump according to claim 2, characterized in that: The inner wall of the exhaust pipe (141) is designed as a wave type groove, and the wave type groove of the inner wall of the exhaust pipe (141) is used for rapid heating of water in the heating cavity (142).

4. The subway tunnel type air-cooled condenser device for air-cooled heat pump according to claim 3, characterized in that: The cleaning assembly (16) comprises four reciprocating screw grooves (161), four reciprocating screw grooves (161) are rotatably arranged in the four side recesses on the top of the chassis (15), four reciprocating screw grooves (161) are slidably sleeved with sliding blocks (162), the top of the sliding block (162) is rotatably connected with a jet rod (163), the outer side of the lower end shaft of the jet rod (163) is fixed with a tooth disc (164), the outer side of the tooth disc (164) is engaged with a rack (165), the rack (165) is installed on the top of the chassis (15), and the top of the jet rod (163) is connected with the lower pressure relief valve port of the heating cavity (142) through a rotary joint and a hose.

5. The subway tunnel type air-cooled condenser device for air-cooled heat pump according to claim 4, characterized in that: Four reciprocating screw grooves (161) are connected through transmission bevel gears, one of the four reciprocating screw grooves (161) is connected with a motor, and the outer side of the jet rod (163) is vertically arranged and installed with a spray head.

Images