Siphon type liquid storage device and heat pump system comprising same

Abstract

The invention provides a siphoning type liquid accumulator and a heat pump system comprising the same, and relates to the technical field of heat pump system liquid accumulators, the siphoning type liquid accumulator comprises equipment frames and a liquid accumulator tube stack, a plurality of equipment frame cross beams are installed between the equipment frames, the liquid accumulator tube stack is installed on the equipment frame cross beams, and the liquid accumulator tube stack is installed on the equipment frame cross beams. A liquid cooler support is fixedly installed at the upper end of the liquid storage device pipe set, and a heat pump liquid cooler is fixedly installed at the upper end of the liquid cooler support. According to the heat pump system, the improved liquid storage device pipe set is arranged in the whole heat pump system, the amount of liquid refrigerant in the liquid storage device can be adjusted when the unit operates, the reliability and capacity of the unit are improved, and the reliability of the unit is improved; and the pressure difference between the liquid inlet pipe and the liquid outlet pipe is not enough to suck the liquid to a sufficient height from the siphon port and the liquid outlet to be discharged, so that a downstream expansion valve is not impacted, and impurities are prevented from entering the expansion valve to influence the next startup.

Description

Technical Field

[0001] The present invention relates to the technical field of heat pump system liquid accumulators, and specifically to a siphon type liquid accumulator and a heat pump system containing the liquid accumulator. Background Art

[0002] The liquid outlet pipe of a conventional liquid accumulator is a straight pipe leading to the upper part of the tank body. The liquid discharge hole is on the liquid outlet pipe at the bottom of the liquid storage tank, and the exhaust hole is at the top of the liquid outlet pipe. With this structural design, the liquid discharge hole is small, and the pressure loss is very large when the flow rate is large, resulting in the attenuation of the unit capacity. Moreover, it is not conducive to exhaust. A small amount of gaseous refrigerant enters the liquid outlet pipe, affecting the operation of the expansion valve downstream of the liquid outlet pipe and the stable operation of the refrigeration system. When the system is operating under vacuum (the expansion valve downstream of the liquid outlet pipe is gradually closed to the closed state), the pressure difference between the liquid inlet pipe and the liquid outlet pipe becomes smaller, and the impurities existing in the tank body are deposited at the bottom of the tank body. Under the action of a small pressure difference, the impurities continue to enter the liquid outlet pipe through the liquid discharge hole and are deposited on the expansion valve downstream of the liquid outlet pipe, resulting in the expansion valve not being able to open normally during the next startup and causing the unit to malfunction and shut down. Summary of the Invention

[0003] In view of the deficiencies of the prior art, the present invention provides a siphon type liquid accumulator and a heat pump system containing the liquid accumulator, which solve the problems raised in the background art.

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: A siphon type liquid accumulator includes an equipment frame and a liquid accumulator pipe group. A number of equipment frame cross beams are installed between the equipment frames. The liquid accumulator pipe group is installed on the equipment frame cross beams. A liquid cooler support is fixedly installed at the upper end of the liquid accumulator pipe group, and a heat pump liquid cooler is fixedly installed at the upper end of the liquid cooler support; An evaporator support is also fixedly installed on the equipment frame cross beam, and a heat pump evaporator is fixedly installed at the upper end of the evaporator support.

[0005] Preferably, an oil tank installation support is fixedly installed on the equipment frame cross beam, and a heat pump oil tank is fixedly installed at the upper end of the oil tank installation support; An oil separator is fixedly installed at the upper end of the equipment frame cross beam. A compressor support is fixedly installed at the upper end of the oil separator, and a heat pump compressor is fixedly installed at the upper end of the compressor support; An equipment control cabinet is also fixedly installed at the upper end of the equipment frame cross beam.

[0006] Preferably, the liquid accumulator pipe group includes: a liquid accumulator housing, a liquid accumulator base support, a liquid accumulator liquid inlet pipe, an inlet pipe connecting throat, an inlet liquid pressure reducing and filtering component, a filtering component limiting frame, a first baffle, and a siphon liquid discharge pipe group; A liquid storage container housing has a liquid storage container inlet pipe fixedly installed at its upper end, a liquid storage container base bracket fixedly installed at its lower end, the lower end of the liquid storage container inlet pipe is fixedly connected to an inlet pipe connecting throat, and an inlet liquid pressure reducing and filtering assembly is provided at the lower end of the inlet pipe connecting throat; A first baffle is fixedly installed on the inner wall of the liquid storage container housing, two filtering assembly limiting frames are fixedly installed on one side surface of the first baffle, and a siphon drainage pipe group is fixedly installed at the lower end inside the liquid storage container housing.

[0007] Preferably, a second baffle is fixedly installed on the inner wall of the liquid storage container housing, a baffle liquid passing block is integrally provided at the upper end of the second baffle, a filtrate net is fixedly installed on the side surface of the baffle liquid passing block, a filter net isolation strip is fixedly installed at the upper end of the filtrate net, and a splash-proof baffle is fixedly installed at the upper end of the filter net isolation strip.

[0008] Preferably, the inlet liquid pressure reducing and filtering assembly includes: a filtering assembly housing, a filtering assembly top cover, a filtrate ring groove, a filtering inlet pipe, a filtrate outlet, a filtering inlet, a filtering diversion nozzle, and a flocculent liquid scale filtering member; The filtering assembly housing has a filtering assembly top cover fixedly installed at its upper end, a filtering inlet pipe fixedly installed in the middle of the filtering assembly top cover, a filtrate ring groove is provided on the outer circumference of the filtering inlet pipe and on the upper surface of the filtering assembly top cover, a filtering inlet is provided at the lower end of the filtering inlet pipe, a plurality of filtering diversion nozzles are provided at the lower end of the filtering inlet, and a flocculent liquid scale filtering member is provided at the upper end of each filtering diversion nozzle; A filtrate outlet is provided at the upper end of each filtering diversion nozzle and is arranged in the filtrate ring groove.

[0009] Preferably, the lower end of the filtering assembly housing is integrally provided with a main hydraulic pipe top plate, a main hydraulic pipe top seat is fixedly installed on the main hydraulic pipe top plate, a main hydraulic pipe is connected to the lower end of the main hydraulic pipe top seat, and a shock-absorbing installation bottom plate is provided at the lower end of the main hydraulic pipe; The lower end of the filtering assembly housing is also integrally provided with a secondary hydraulic pipe top plate, a plurality of secondary hydraulic pipe top seats are fixedly installed on the secondary hydraulic pipe top plate, a secondary hydraulic pipe is connected to the lower end of each secondary hydraulic pipe top seat, and a shock-absorbing spring is sleeved on each secondary hydraulic pipe.

[0010] Preferably, the upper end of the filtering inlet pipe is fixedly connected to the inlet pipe connecting throat.

[0011] Preferably, the flocculent liquid scale filtering member includes: a liquid scale filtering member housing, a housing inlet and outlet, a filtering liquid separating plate, and a flocculent liquid scale hanging rod; The liquid scale filtering member housing is provided with housing inlet and outlets at both the upper and lower ends, a filtering liquid separating plate is fixedly installed between the inner walls of the liquid scale filtering member housing, and a plurality of flocculent liquid scale hanging rods are horizontally arranged between the filtering liquid separating plates.

[0012] Preferably, the siphon drain pipe group includes: a siphon drain pipe, a siphon port booster cover, an exhaust hole, a booster boss, and a siphon inlet tank; The upper end of the siphon drain pipe is integrally provided with a siphon port booster cover. An exhaust hole is provided at the top of the siphon drain pipe. A siphon inlet tank is provided at the lower end of the siphon port booster cover, and a booster boss is arranged in the middle of the siphon inlet tank.

[0013] A heat pump system including a siphon type liquid reservoir, comprising: A liquid reservoir pipe group, a heat pump liquid cooler, a heat pump evaporator, a heat pump oil tank, an equipment control cabinet, an oil separator, and a heat pump compressor; The liquid reservoir pipe group is connected to the heat pump liquid cooler and the heat pump evaporator through pipelines. The heat pump compressor is communicated with the heat pump oil tank through an oil separator. The equipment control cabinet integrates the functions of monitoring and adjusting the operating parameters of the liquid reservoir pipe group, the liquid cooler, the evaporator, and the compressor; The heat pump liquid cooler includes: a housing, an internal cooling coil, a coolant inlet / outlet, and a temperature sensor arranged in the housing; the cooling coil is a spiral multi-layer structure, and a flow control valve linked with the equipment control cabinet is provided at the coolant inlet; The heat pump evaporator includes: an evaporation pipe group, a gas-liquid separator, and a refrigerant distributor; The surface of the evaporation pipe group is coated with a hydrophilic coating. The distributor is provided with a plurality of shunt holes, and the shunt hole diameters decrease in a gradient along the fluid direction; The heat pump oil tank is provided with: an oil storage chamber, a heater, and an oil level sensor; the heater is an electric heating sheet attached to the outer wall of the oil storage chamber and connected to the equipment control cabinet to start and stop according to the oil temperature; The equipment control cabinet includes: a main controller, a human-machine interface, a data storage module, and a communication module; the communication module supports 4G / 5G wireless transmission and is used to remotely send system alarm signals and energy efficiency data; The oil separator adopts a cyclone separation structure, is internally provided with multiple layers of stainless steel filter screens, and is connected to the heat pump oil tank through a return oil pipe at the bottom; a pressure sensor is provided at the outlet of the oil separator to monitor the separation efficiency and trigger a maintenance reminder; The heat pump compressor is a variable-frequency scroll compressor, and its exhaust port is connected to the oil separator through a shock-absorbing hose; temperature sensors and vibration sensors are integrated on the compressor housing, and real-time data is fed back to the equipment control cabinet.

[0014] The present invention provides a siphon type liquid reservoir and a heat pump system including the liquid reservoir. The following beneficial effects are achieved: (1) By arranging the improved liquid storage tube group in the entire heat pump system, the present invention can adjust the amount of liquid refrigerant in the liquid storage device during the operation of the unit, improve the reliability and capacity of the unit, and enhance the reliability of the unit: when the unit shuts down and operates in the vacuum pumping mode, the pressure difference between the liquid inlet pipe and the liquid outlet pipe is not sufficient to suck the liquid to a sufficient height from the siphon drain port for discharge, which will not cause an impact on the downstream expansion valve, and no impurities will enter the expansion valve part, thus having no impact on the next startup. (2) The present invention reduces the capacity attenuation of the unit: the diameter of the siphon drain port is equivalent to that of the liquid outlet pipe. When the flow rate is large, the pressure loss of the refrigerant is small, and the impact on the unit capacity is small. (3) After the refrigerant enters from the liquid inlet pipe of the liquid storage device and passes through the connecting throat of the liquid inlet pipe, due to the high-pressure environment of the liquid circuit in the whole system, there will be a strong impact when entering the outer shell of the liquid storage device. However, through the main hydraulic pipe roof plate at the lower end of the liquid inlet pressure reduction and filtration component, the main hydraulic pipe top seat at the lower end is squeezed, so that the damping effect in the main hydraulic pipe can be used for buffering, and the surrounding auxiliary hydraulic pipes can assist and correct the buffering direction, and the outer shell of the filtration component is supported by the shock absorption spring. (4) The present invention connects the coolant into the filtered liquid inlet through the connecting throat of the liquid inlet pipe, flows through the flocculent liquid scale filter through the filtered shunt pipe orifice, and through the filtrate outlet at the upper end. After flowing out from the filtrate ring groove, the coolant can flow through the first baffle from the baffle liquid passing block at the upper end of the second baffle, and the residue liquid scale is filtered out through the filtrate net. (5) The present invention flows in and out through the shell inlet and outlet at the upper and lower ends of the liquid scale filter shell, separates the coolant through the filter liquid separating plate, and hangs the flocculent liquid scale carried by the coolant from the liquid path through the flocculent liquid scale hanging rods between the intervals, thus completing the filtration of the suspended liquid scale. (6) The present invention pushes the coolant into the high-pressure environment inside the outer shell of the liquid storage device through the siphon inlet groove at the lower end of the siphon port pressure increasing cover, and reduces the liquid flow diameter at the orifice of the siphon drain pipe through the pressure increasing boss, so as to reduce the air entry and increase the smoothness of the liquid discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the structural schematic diagram from another perspective of the present invention; Figure 3 is the structural schematic diagram of the liquid storage tube group of the present invention; Figure 4 is the front view structural schematic diagram of the liquid storage tube group of the present invention; Figure 5 is the present invention Figure 4 the sectional structural schematic diagram of the a-a line in; Figure 6 is the present inventionFigure 5 Schematic diagram of the enlarged structure at A in the present invention; Figure 7 Schematic diagram of the structure of the liquid inlet pressure-reducing filtration assembly in the present invention; Figure 8 Schematic side view of the liquid inlet pressure-reducing filtration assembly in the present invention; Figure 9 For the present invention Figure 8 Schematic sectional view taken along line b-b in the present invention; Figure 10 For the present invention Figure 9 Schematic diagram of the enlarged structure at B in the present invention; Figure 11 Schematic sectional view of the flocculent liquid scale filter element in the present invention; Figure 12 Schematic side view of the flocculent liquid scale filter element in the present invention; Figure 13 For the present invention Figure 12 Schematic sectional view taken along line c-c in the present invention; Figure 14 Schematic diagram of the structure of the siphon liquid discharge pipe group in the present invention; Figure 15 Schematic side view of the siphon liquid discharge pipe group in the present invention; Figure 16 For the present invention Figure 15 Schematic sectional view taken along line d-d in the present invention.

[0016] Among them, 1. Equipment frame; 2. Liquid storage tube group; 201. Liquid storage tank shell; 202. Liquid storage tank base bracket; 203. Liquid storage tank inlet pipe; 204. Inlet pipe connecting throat; 205. Inlet liquid pressure reducing and filtering assembly; 2051. Filter assembly shell; 2052. Filter assembly top cover; 2053. Filter liquid ring groove; 2054. Filter inlet pipe; 2055. Filter liquid outlet; 2056. Filter inlet; 2057. Filter diversion nozzle; 2058. Flocculent liquid scale filter element; 2059. Shock-absorbing mounting base plate; 20510. Main hydraulic pipe; 20511. Main hydraulic pipe top plate; 20512. Main hydraulic pipe top seat; 20513. Auxiliary hydraulic pipe top plate; 20514. Auxiliary hydraulic pipe; 20515. Shock-absorbing spring; 20516. Auxiliary hydraulic pipe top seat; 20517. Liquid scale filter element shell; 20518. Shell inlet and outlet; 20519. Filter liquid separation plate; 20520. Flocculent liquid scale hanging rod; 206. Filter assembly limiting frame; 207. First baffle; 208. Siphon drainage pipe group; 2081. Siphon drainage pipe; 2082. Siphon port pressure increasing cover; 2083. Exhaust hole; 2084. Pressure increasing boss; 2085. Siphon inlet liquid groove; 209. Second baffle; 210. Baffle liquid passing stop block; 211. Filter liquid net; 212. Filter net isolation strip; 213. Splash-proof baffle; 3. Heat pump liquid cooler; 4. Heat pump evaporator; 5. Heat pump oil tank; 6. Equipment control cabinet; 7. Equipment frame cross beam; 8. Oil separator; 9. Heat pump compressor; 10. Evaporator bracket; 11. Liquid cooler bracket; 12. Compressor bracket; 13. Oil tank mounting bracket. Detailed implementation manner

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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 the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0018] Such as Figures 1 to 2As shown in the figure, an embodiment of the present invention provides a siphon type liquid reservoir, which includes an equipment frame 1 and a liquid reservoir pipe group 2. A number of equipment frame cross beams 7 are installed between the equipment frames 1. The liquid reservoir pipe group 2 is installed on the equipment frame cross beams 7. A liquid cooler support 11 is fixedly installed at the upper end of the liquid reservoir pipe group 2, and a heat pump liquid cooler 3 is fixedly installed at the upper end of the liquid cooler support 11. An evaporator support 10 is also fixedly installed on the equipment frame cross beam 7, and a heat pump evaporator 4 is fixedly installed at the upper end of the evaporator support 10. An oil tank installation support 13 is fixedly installed on the equipment frame cross beam 7, and a heat pump oil tank 5 is fixedly installed at the upper end of the oil tank installation support 13. An oil separator 8 is fixedly installed at the upper end of the equipment frame cross beam 7, a compressor support 12 is fixedly installed at the upper end of the oil separator 8, and a heat pump compressor 9 is fixedly installed at the upper end of the compressor support 12. An equipment control cabinet 6 is also fixedly installed at the upper end of the equipment frame cross beam 7.

[0019] In the above technical solution, by arranging the improved liquid reservoir pipe group 2 in the entire heat pump system, it is possible to adjust the liquid refrigerant amount in the liquid reservoir during the operation of the unit, improve the reliability and capacity of the unit, and improve the reliability of the unit: when the unit shuts down and operates in the vacuum pumping mode, the pressure difference between the liquid inlet pipe and the liquid outlet pipe is not sufficient to suck the liquid to a sufficient height from the siphon outlet to drain it, which will not cause an impact on the downstream expansion valve, and no impurities will enter the expansion valve part, affecting the next startup. Among them, the attenuation of the unit capacity is reduced: the diameter of the siphon drain port is equivalent to that of the liquid outlet pipe. When the flow rate is large, the refrigerant pressure loss is small, and the impact on the unit capacity is small.

[0020] Such as Figure 1 、 Figures 4 to 6As shown in the figure, the liquid storage tube group 2 includes: a liquid storage outer shell 201, a liquid storage base bracket 202, a liquid storage inlet pipe 203, an inlet pipe connecting throat 204, an inlet liquid pressure reducing and filtering component 205, a filtering component limiting frame 206, a first baffle 207, and a siphon drainage pipe group 208; the liquid storage inlet pipe 203 is fixedly installed at the upper end of the liquid storage outer shell 201, the liquid storage base bracket 202 is fixedly installed at the lower end of the liquid storage outer shell 201, the lower end of the liquid storage inlet pipe 203 is fixedly connected to the inlet pipe connecting throat 204, and the inlet liquid pressure reducing and filtering component 205 is arranged at the lower end of the inlet pipe connecting throat 204; two filtering component limiting frames 206 are fixedly installed on one side surface of the first baffle 207 on the inner wall of the liquid storage outer shell 201, the siphon drainage pipe group 208 is fixedly installed at the lower end inside the liquid storage outer shell 201, a second baffle 209 is fixedly installed on the inner wall of the liquid storage outer shell 201, a baffle liquid passing block 210 is integrally arranged at the upper end of the second baffle 209, a filtrate net 211 is fixedly installed on the side surface of the baffle liquid passing block 210, a filter net isolation strip 212 is fixedly installed at the upper end of the filtrate net 211, and a splash-proof baffle 213 is fixedly installed at the upper end of the filter net isolation strip 212.

[0021] In the above technical solution, the coolant is introduced into the filtering inlet 2056 through the inlet pipe connecting throat 204, flows through the flocculent liquid scale filtering element 2058 through the filtering shunt nozzle 2057, and passes through the filtrate outlet 2055 at the upper end. After flowing out of the filtrate ring groove 2053, the coolant passes through the first baffle 207 and flows through the baffle liquid passing block 210 at the upper end of the second baffle 209, and the residue liquid scale is filtered out through the filtrate net 211.

[0022] As Figure 5 、 Figures 7 to 13 shown in the figure, the inlet liquid pressure reducing and filtering component 205 includes: a filtering component outer shell 2051, a filtering component top cover 2052, a filtrate ring groove 2053, a filtering inlet pipe 2054, a filtrate outlet 2055, a filtering inlet 2056, a filtering shunt nozzle 2057, and a flocculent liquid scale filtering element 2058; the filtering component top cover 2052 is fixedly installed at the upper end of the filtering component outer shell 2051, the filtering inlet pipe 2054 is fixedly installed in the middle of the filtering component top cover 2052, the filtrate ring groove 2053 is formed on the outer circumference of the filtering inlet pipe 2054 and on the upper surface of the filtering component top cover 2052, the filtering inlet 2056 is opened at the lower end of the filtering inlet pipe 2054, a plurality of filtering shunt nozzles 2057 are opened at the lower end of the filtering inlet 2056, and a flocculent liquid scale filtering element 2058 is arranged at the upper end of each filtering shunt nozzle 2057; the upper end of each filtering shunt nozzle 2057 is provided with a filtrate outlet 2055 and is arranged in the filtrate ring groove 2053.

[0023] At the lower end of the filter component housing 2051, a main hydraulic pipe top plate 20511 is integrally provided. A main hydraulic pipe top seat 20512 is fixedly installed on the main hydraulic pipe top plate 20511. The lower end of the main hydraulic pipe top seat 20512 is connected to a main hydraulic pipe 20510. The lower end of the main hydraulic pipe 20510 is provided with a shock-absorbing installation bottom plate 2059. At the lower end of the filter component housing 2051, a secondary hydraulic pipe top plate 20513 is also integrally provided. A number of secondary hydraulic pipe top seats 20516 are fixedly installed on the secondary hydraulic pipe top plate 20513. The lower end of the secondary hydraulic pipe top seat 20516 is connected to a secondary hydraulic pipe 20514. A shock-absorbing spring 20515 is sleeved on each secondary hydraulic pipe 20514. The upper end of the filter inlet pipe 2054 is fixedly connected to the inlet pipe connecting throat 204.

[0024] In the above technical solution, after the refrigerant enters from the liquid storage inlet pipe 203 and passes through the inlet pipe connecting throat 204, due to the high-pressure environment of the entire system liquid path, there will be a strong impact force when entering the liquid storage housing 201. Through the main hydraulic pipe top plate 20511 at the lower end of the inlet liquid pressure reduction and filtration component 205, the main hydraulic pipe top seat 20512 at the lower end is squeezed, so that the damping effect in the main hydraulic pipe 20510 can be used for buffering. The surrounding secondary hydraulic pipes 20514 can assist in correcting the buffering direction and support the filter component housing 2051 through the shock-absorbing springs 20515.

[0025] The flocculent liquid scale filter element 2058 includes: a liquid scale filter element housing 20517, a housing inlet and outlet 20518, a filter liquid separation plate 20519, and a flocculent liquid scale hanging rod 20520. The housing inlet and outlet 20518 are opened at both the upper and lower ends of the liquid scale filter element housing 20517. A filter liquid separation plate 20519 is fixedly installed between the inner walls of the liquid scale filter element housing 20517. A number of flocculent liquid scale hanging rods 20520 are horizontally arranged between the filter liquid separation plates 20519.

[0026] In the above technical solution, it flows in and out through the housing inlet and outlet 20518 at the upper and lower ends of the liquid scale filter element housing 20517, the coolant is separated by the filter liquid separation plate 20519, and the flocculent liquid scale carried by the coolant in the liquid path is hung by the flocculent liquid scale hanging rods 20520 between the intervals, so as to complete the filtration of the suspended liquid scale.

[0027] Such as Figure 5 、 Figures 14 to 16As shown, the siphon drain pipe group 208 includes: a siphon drain pipe 2081, a siphon port pressure increasing cover 2082, an exhaust hole 2083, a pressure increasing boss 2084, and a siphon liquid inlet groove 2085; an integrated siphon port pressure increasing cover 2082 is provided at the upper end of the siphon drain pipe 2081, an exhaust hole 2083 is provided at the top of the siphon drain pipe 2081, a siphon liquid inlet groove 2085 is provided at the lower end of the siphon port pressure increasing cover 2082, and a pressure increasing boss 2084 is provided in the middle of the siphon liquid inlet groove 2085.

[0028] In the above technical solution, the coolant is pushed into the high-pressure environment inside the liquid storage tank housing 201 through the siphon liquid inlet groove 2085 at the lower end of the siphon port pressure increasing cover 2082, and the liquid flow diameter at the pipe orifice of the siphon drain pipe 2081 is reduced through the pressure increasing boss 2084, so that the entry of air can be reduced and the drainage smoothness can be increased.

[0029] A heat pump system containing a siphon type liquid storage tank includes: a liquid storage tank pipe group, a heat pump liquid cooler, a heat pump evaporator, a heat pump oil tank, an equipment control cabinet, an oil separator, and a heat pump compressor; The liquid storage tank pipe group is connected to the heat pump liquid cooler and the heat pump evaporator through pipelines, the heat pump compressor is communicated with the heat pump oil tank through the oil separator, and the equipment control cabinet integrates the functions of monitoring and adjusting the operating parameters of the liquid storage tank pipe group, the liquid cooler, the evaporator, and the compressor; The heat pump liquid cooler includes: a housing, an internal cooling coil, a coolant inlet / outlet, and a temperature sensor provided inside the housing; the cooling coil is a spiral multi-layer structure, and a flow control valve linked with the equipment control cabinet is provided at the coolant inlet; The heat pump evaporator includes: an evaporation pipe group, a gas-liquid separator, and a refrigerant distributor; The surface of the evaporation pipe group is coated with a hydrophilic coating, the distributor is provided with a plurality of shunt holes, and the shunt hole diameters decrease in a gradient along the fluid direction; The heat pump oil tank is provided with: an oil storage cavity, a heater, and an oil level sensor; the heater is an electric heating sheet attached to the outer wall of the oil storage cavity and connected to the equipment control cabinet to start and stop according to the oil temperature; The equipment control cabinet includes: a main controller, a human-machine interface, a data storage module, and a communication module; the communication module supports 4G / 5G wireless transmission and is used for remotely sending system alarm signals and energy efficiency data; The oil separator adopts a cyclone separation structure, is internally provided with multiple layers of stainless steel filter screens, and is connected to the heat pump oil tank through a return oil pipe at the bottom; a pressure sensor is provided at the outlet of the oil separator for monitoring the separation efficiency and triggering a maintenance reminder; The heat pump compressor is a variable-frequency scroll compressor, and its exhaust port is connected to an oil separator through a shock-absorbing hose; a temperature sensor and a vibration sensor are integrated on the compressor housing, and real-time data is fed back to the equipment control cabinet.

[0030] Working principle: By arranging the improved liquid receiver tube group 2 in the entire heat pump system, the present invention can adjust the amount of liquid refrigerant in the liquid receiver during the operation of the unit, improve the reliability and capacity of the unit, and improve the reliability of the unit: when the unit shuts down, it operates in a vacuum pumping mode, and the pressure difference between the liquid inlet pipe and the liquid outlet pipe is not enough to suck the liquid to a sufficient height from the siphon drain port for drainage, which will not impact the downstream expansion valve, and no impurities will enter the expansion valve part, affecting the next startup; Among them, reducing the capacity attenuation of the unit: the diameter of the siphon drain port is equivalent to that of the liquid outlet pipe. When the flow rate is large, the pressure loss of the refrigerant is small, and the impact on the unit capacity is small; Among them, after the refrigerant enters through the liquid inlet pipe 203 of the liquid receiver and passes through the liquid inlet pipe connecting throat 204, due to the high-pressure environment of the liquid circuit of the entire system, there will be a strong impact when entering the liquid receiver housing 201. However, through the main hydraulic pipe roof plate 20511 at the lower end of the liquid inlet decompression and filtration component 205, the main hydraulic pipe socket 20512 at the lower end is squeezed, so that buffering can be achieved through the damping effect in the main hydraulic pipe 20510, and the surrounding auxiliary hydraulic pipes 20514 can assist and correct the buffering direction, and the filtration component housing 2051 is supported by the shock-absorbing spring 20515; Among them, the coolant is connected into the filtration liquid inlet 2056 through the liquid inlet pipe connecting throat 204, flows through the flocculent liquid scale filtration part 2058 through the filtration shunt nozzle 2057, and through the filtrate outlet 2055 at the upper end, so that after flowing out of the filtrate ring groove 2053, the coolant can flow through the baffle liquid passing block 210 at the upper end of the second baffle 209 through the first baffle 207, and the residue liquid scale is filtered out through the filtrate net 211; Among them, it flows in and out through the housing inlet and outlet 20518 at the upper and lower ends of the liquid scale filtration part housing 20517, the coolant is separated by the filtration liquid separating plate 20519, and the flocculent liquid scale hanging rod 20520 between the intervals hangs the flocculent liquid scale carried by the coolant from the liquid circuit, thus completing the filtration of the suspended liquid scale; Among them, the coolant is pushed into the high-pressure environment inside the liquid receiver housing 201 through the siphon inlet tank 2085 at the lower end of the siphon port pressure increasing cover 2082, and the liquid flow diameter at the nozzle of the siphon drain pipe 2081 is reduced through the pressure increasing boss 2084, so that the entry of air can be reduced and the drainage smoothness can be increased.

[0031] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or alterations can be made based on the above description. It is impossible to list all the implementation manners here. Any obvious changes or alterations derived from the technical solutions of the present invention still fall within the protection scope of the present invention.

Claims

1. A siphon type liquid storage device, comprising a device frame (1) and a liquid storage tube assembly (2), characterized in that: A plurality of equipment frame cross beams (7) are installed between the equipment frames (1), the liquid reservoir tube group (2) is installed on the equipment frame cross beam (7), a liquid cooler bracket (11) is fixedly installed on the upper end of the liquid reservoir tube group (2), and a heat pump liquid cooler (3) is fixedly installed on the upper end of the liquid cooler bracket (11); An evaporator bracket (10) is also fixedly mounted on the equipment frame crossbeam (7), and a heat pump evaporator (4) is fixedly mounted on the upper end of the evaporator bracket (10); The liquid reservoir tube assembly (2) comprises: a liquid reservoir housing (201), a liquid reservoir base bracket (202), a liquid reservoir liquid inlet pipe (203), a liquid inlet pipe connecting throat (204), a liquid inlet pressure reducing filter assembly (205), a filter assembly limiting frame (206), a first baffle (207), and a siphon drainage pipe assembly (208); A liquid reservoir inlet pipe (203) is fixedly mounted on the upper end of the liquid reservoir housing (201), a liquid reservoir base bracket (202) is fixedly mounted on the lower end of the liquid reservoir housing (201), a liquid reservoir inlet pipe (203) is fixedly connected to a liquid inlet pipe connecting throat (204) at the lower end of the liquid reservoir inlet pipe (203), and a liquid inlet pressure reducing filter assembly (205) is provided at the lower end of the liquid inlet pipe connecting throat (204); A first baffle (207) is fixedly mounted on the inner wall of the liquid reservoir housing (201); two filter assembly limit frames (206) are fixedly mounted on one side of the first baffle (207); and a siphon drainage pipe group (208) is fixedly mounted on the lower end of the liquid reservoir housing (201); A second baffle (209) is fixedly mounted on the inner wall of the liquid storage housing (201); a baffle liquid stopper (210) is integrally provided on the upper end of the second baffle (209); a filtrate net (211) is fixedly mounted on the side of the baffle liquid stopper (210); a filter screen isolation strip (212) is fixedly mounted on the upper end of the filtrate net (211); and a splash-proof baffle (213) is fixedly mounted on the upper end of the filter screen isolation strip (212).

2. A siphon type liquid storage device according to claim 1, characterized in that: An oil tank mounting bracket (13) is fixedly mounted on the equipment frame crossbeam (7), and a heat pump oil tank (5) is fixedly mounted on the upper end of the oil tank mounting bracket (13); An oil separator (8) is fixedly mounted on the upper end of the equipment frame crossbeam (7), a compressor bracket (12) is fixedly mounted on the upper end of the oil separator (8), and a heat pump compressor (9) is fixedly mounted on the upper end of the compressor bracket (12); An equipment control cabinet (6) is also fixedly mounted on the upper end of the equipment frame crossbeam (7).

3. A siphon type liquid storage device according to claim 2, characterized in that: The liquid inlet pressure reducing filter assembly (205) comprises: a filter assembly housing (2051), a filter assembly top cover (2052), a filtrate ring groove (2053), a filter liquid inlet pipe (2054), a filtrate outlet (2055), a filter liquid inlet (2056), a filter diversion pipe port (2057), and a flocculent liquid scale filter element (2058); A filter assembly top cover (2052) is fixedly mounted on the upper end of the filter assembly housing (2051); a filter liquid inlet pipe (2054) is fixedly mounted in the middle of the filter assembly top cover (2052); a filtrate ring groove (2053) is provided on the outer ring of the filter liquid inlet pipe (2054) and located on the upper surface of the filter assembly top cover (2052); a filter liquid inlet port (2056) is provided at the lower end of the filter liquid inlet pipe (2054); a plurality of filter flow diversion pipe ports (2057) are provided at the lower end of the filter flow diversion pipe port (2056); and a flocculent liquid scale filter element (2058) is provided at the upper end of each of the filter flow diversion pipe ports (2057); A filtrate outlet (2055) is provided at the upper end of each of the filtration diversion pipe ports (2057) and is arranged in a filtrate annular groove (2053).

4. A siphon type liquid storage device according to claim 3, characterized in that: The lower end of the filter assembly housing (2051) is integrally provided with a main hydraulic pipe top plate (20511), a main hydraulic pipe top seat (20512) is fixedly mounted on the main hydraulic pipe top plate (20511), the lower end of the main hydraulic pipe top seat (20512) is connected to a main hydraulic pipe (20510), and a shock-absorbing mounting bottom plate (2059) is provided at the lower end of the main hydraulic pipe (20510); The lower end of the filter assembly housing (2051) is also integrally provided with an auxiliary hydraulic pipe top plate (20513), a plurality of auxiliary hydraulic pipe top seats (20516) are fixedly mounted on the auxiliary hydraulic pipe top plate (20513), the lower end of the auxiliary hydraulic pipe top seat (20516) is connected to an auxiliary hydraulic pipe (20514), and each of the auxiliary hydraulic pipes (20514) is sleeved with a shock absorbing spring (20515).

5. A siphon type liquid storage device according to claim 4, characterized in that: The upper end of the filtering liquid inlet pipe (2054) is fixedly connected to the liquid inlet pipe connecting throat pipe (204).

6. A siphon type liquid storage device according to claim 5, characterized in that: The flocculent liquid scale filter element (2058) comprises: a liquid scale filter element housing (20517), a housing inlet and outlet (20518), a filter liquid isolation plate (20519), and a flocculent liquid scale hanging rod (20520); The liquid scale filter housing (20517) is provided with housing inlets and outlets (20518) at the top and bottom, a filter liquid partition plate (20519) is fixedly installed between the inner walls of the liquid scale filter housing (20517), and a plurality of flocculent liquid scale hanging rods (20520) are horizontally arranged between the filter liquid partition plates (20519).

7. A siphon type liquid storage device according to claim 6, characterized in that: The siphon drainage pipe assembly (208) comprises: a siphon drainage pipe (2081), a siphon port pressurizing cover (2082), an exhaust hole (2083), a pressurizing boss (2084), and a siphon liquid inlet groove (2085); The upper end of the siphon drainage pipe (2081) is integrally provided with a siphon port pressurizing cover (2082), the top of the siphon drainage pipe (2081) is provided with an exhaust hole (2083), the lower end of the siphon port pressurizing cover (2082) is provided with a siphon liquid inlet groove (2085), and a pressurizing boss (2084) is provided in the middle of the siphon liquid inlet groove (2085).

8. A heat pump system with a siphon type liquid storage device, comprising: Liquid storage pipe group, heat pump liquid cooler, heat pump evaporator, heat pump oil tank, equipment control cabinet, oil separator and heat pump compressor; The liquid reservoir pipe group is connected to the heat pump liquid cooler and the heat pump evaporator through pipelines, the heat pump compressor is connected to the heat pump oil tank through an oil separator, and the equipment control cabinet integrates the operating parameter monitoring and adjustment functions of the liquid reservoir pipe group, liquid cooler, evaporator and compressor; The heat pump liquid cooler comprises: a shell, an internal cooling coil, a coolant inlet / outlet, and a temperature sensor arranged in the shell; the cooling coil is a spiral multi-layer structure, and a flow control valve linked to the equipment control cabinet is provided at the coolant inlet; The heat pump evaporator comprises: an evaporation tube group, a gas-liquid separator and a refrigerant distributor; The surface of the evaporation tube group is covered with a hydrophilic coating, and the distributor is provided with a plurality of diversion holes, and the diversion hole diameter decreases gradually along the fluid direction; The heat pump oil tank is provided with: an oil storage chamber, a heater and an oil level sensor; the heater is an electric heating plate, which is attached to the outer wall of the oil storage chamber and connected to the equipment control cabinet to start and stop according to the oil temperature; The equipment control cabinet includes: a main controller, a human-computer interaction interface, a data storage module and a communication module; the communication module supports 4G / 5G wireless transmission and is used to remotely send system alarm signals and energy efficiency data; The oil separator adopts a cyclone separation structure, with multiple layers of stainless steel filters inside, and the bottom is connected to the heat pump oil tank through an oil return pipe; a pressure sensor is provided at the outlet of the oil separator to monitor the separation efficiency and trigger maintenance reminders; The heat pump compressor is a variable frequency scroll compressor, and its exhaust port is connected to the oil separator through a shock-absorbing hose; a temperature sensor and a vibration sensor are integrated on the compressor housing, and real-time data is fed back to the equipment control cabinet.

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