CN209744778U - Multifunctional evaporative condenser and heat pump system based on same - Google Patents
Multifunctional evaporative condenser and heat pump system based on same Download PDFInfo
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- CN209744778U CN209744778U CN201920453245.8U CN201920453245U CN209744778U CN 209744778 U CN209744778 U CN 209744778U CN 201920453245 U CN201920453245 U CN 201920453245U CN 209744778 U CN209744778 U CN 209744778U
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Abstract
The utility model discloses a multi-functional evaporative condenser reaches heat pump system based on this condenser. The evaporative condenser comprises a machine body, wherein the machine body comprises an upper box body and a lower box body, a spraying assembly and a coil pipe set positioned below the spraying assembly are arranged in the upper box body, and the coil pipe set comprises a plurality of condensing pipes. The evaporative condenser also comprises an air inlet manifold, a liquid supply pipe and a liquid separation head. The outlet end of the air inlet manifold is connected with a plurality of air inlet branch pipes, the air inlet branch pipes are connected with the condensing pipe through tee pipe fittings, air inlet check valves are further arranged on the air inlet branch pipes respectively, the liquid supply pipe is connected with the tee pipe fittings through liquid dividing heads, and liquid supply valves are further arranged on the liquid supply pipe. The heat pump system also includes a compressor, an economizer, and the like. The utility model discloses a multi-functional evaporative condenser can use as the condenser alone, can also use as the evaporimeter in heat pump system, still has the advantage that heat transfer efficiency is high, and heat pump system also can compromise the refrigeration effect of heating simultaneously.
Description
Technical Field
The utility model relates to a multi-functional evaporative condenser still relates to a heat pump system based on this condenser.
background
the existing evaporative condenser is generally only used as a condenser of a refrigerating unit, has single function, and needs to be matched with a complex pipeline system to realize the switching of functional modes if the existing evaporative condenser is used as the condenser in summer and used as the evaporator in winter in a heat pump system which gives consideration to both refrigeration and heating.
on the other hand, the heat pump system closely related to the application of the evaporative condenser has the problem that the refrigeration and heating requirements are difficult to meet on the premise of high efficiency and energy conservation.
at present, an air-cooled condenser or an evaporative condenser is mainly adopted as a wind-side heat exchanger of the air source heat pump system.
if the air-cooled condenser is adopted as the air-side heat exchanger of the air source heat pump system: in a summer refrigeration mode, the air-cooled condenser is used as a condenser, the condensing temperature (generally 8-12 ℃ higher than the outdoor calculation temperature of a summer ventilation chamber) is higher, and the refrigeration efficiency is lower; in a winter heating mode, the air-cooled condenser is used as an evaporator, when the surface temperature of the evaporator is lower than 0 ℃, the surface of the evaporator can frost, and the thicker the frost layer is, the poorer the heat exchange effect of the evaporator is, and the frost melting needs to be carried out regularly. During defrosting, the system needs to operate in a refrigerating mode, the air-cooled condenser is used as a condenser, high-temperature refrigerant temperature body exchanges heat with the condenser, a surface frost layer is melted, and the water side heat exchanger is used as an evaporator to prepare cold water so that the temperature of hot water at a heating side is reduced. Defrosting consumes heat energy of the system, and defrosting of the compressor consumes electric energy. Therefore, the air source heat pump unit adopting the air-cooled condenser has the problems of not ideal refrigeration effect and low energy utilization rate in a heating mode.
If the air side heat exchanger of the air source heat pump system adopts an evaporative condenser: in a summer refrigeration mode, the evaporative condenser is used as a condenser, the condensing temperature (generally 5-10 ℃ higher than the summer wet bulb temperature) is lower, and the refrigeration efficiency is higher; however, in the winter heating mode, the evaporative condenser needs to be used as an evaporator, and the heat exchange efficiency of the evaporative condenser cannot meet the requirement of heating cycle operation.
Therefore, the existing heat pump system is difficult to meet the requirements of refrigeration and heating on the premise of high efficiency and energy conservation.
SUMMERY OF THE UTILITY MODEL
the utility model provides a multi-functional evaporative condenser and heat pump system based on this condenser, its purpose: (1) the multifunctional evaporative condenser has two functional modes of a condenser and an evaporator, can be independently used as the condenser and can also be used as the evaporator in a heat pump system, and the matched pipeline of the heat pump system is simplified; (2) the heat transfer efficiency of the evaporative condenser is improved; (3) on the premise of improving the efficiency of the heat pump system and saving energy, the heat pump system can meet the requirements of refrigeration and heating.
the utility model discloses technical scheme as follows:
The utility model provides a multi-functional evaporative condenser, includes the organism, the organism includes box and lower box, is equipped with spray assembly in the upper box and is located the coil pipe group of spray assembly below, coil pipe group includes a plurality of condenser pipes, be equipped with the water catch bowl that is located coil pipe group below in the box down, evaporative condenser still includes the export header, the exit end of each condenser pipe all with the entrance point of export header is linked together its characterized in that: the evaporative condenser also comprises an air inlet manifold, a liquid supply pipe and a liquid separation head; the outlet end of the air inlet gathering pipe is connected with a plurality of air inlet branch pipes, the air inlet branch pipes correspond to the condensation pipes one by one, each air inlet branch pipe also corresponds to a three-way pipe fitting, the first connector end of the three-way pipe fitting is connected with the outlet end of the air inlet branch pipe, the second connector end of the three-way pipe fitting is connected with the inlet end of the corresponding condensation pipe, each air inlet branch pipe is also provided with an air inlet one-way valve, and the conduction direction of the air inlet one-way valve is from the air inlet gathering pipe to the three-way pipe fitting; the outlet end of the liquid supply pipe is connected with a liquid distribution head, the liquid distribution head is provided with liquid distribution branches which are in one-to-one correspondence with the three-way pipe fitting, and each liquid distribution branch is respectively connected with the third interface end of the corresponding three-way pipe fitting.
As a further improvement of the condenser: the condenser pipe comprises a plurality of condenser pipe sections which are sequentially connected end to end through bent connecting pipes, the section shape of the pipe body of each condenser pipe section is an oval shape with the height larger than the width, the outer sides of the top and the bottom of the pipe body are respectively connected with vertical fins, and the trend of the fins is consistent with the trend of the pipe body.
As a further improvement of the condenser: each condensation pipe section is arranged in an inclined mode, and the inlet end of each condensation pipe section is higher than the outlet end of each condensation pipe section.
as a further improvement of the condenser: the inclination angle range of the condensation pipe section is 0.5-1 degrees.
As a further improvement of the condenser: the lower box body also comprises a PVC packing layer which is positioned above the water collecting tank and below the coil pipe group.
As a further improvement of the condenser: the top of the upper box body is also provided with a fan, the side wall of the lower box body is also provided with an air inlet, and the air inlet is positioned below the PVC packing layer and above the water collecting tank.
As a further improvement of the condenser: the water pump is arranged in the lower box body, the inlet end of the water pump is communicated with the water collecting tank, and the outlet end of the water pump is communicated with the spraying assembly through a pipeline.
the utility model also provides a heat pump system based on the condenser, which comprises a compressor, an oil separator, a liquid storage device, an economizer, a water side heat exchanger, a gas-liquid separator, a tail end heat exchanger and the evaporative condenser;
The compressor has an outlet port a, a first inlet port b and a second inlet port c; the economizer is provided with a first inlet d and a first outlet e communicated with the d, and is also provided with a second inlet f and a second outlet g communicated with the f;
Setting the inlet end of the air inlet manifold of the evaporative condenser as an h port, the inlet end of the liquid supply pipe as an i port and the outlet end of the outlet manifold as a j port;
The water side heat exchanger is provided with a first refrigerant interface m port, a second refrigerator interface n port communicated with the m port, a first water side interface o port and a second water side interface p port communicated with o;
The port a of the compressor is communicated with the inlet end of the oil separator, the outlet end of the oil separator is communicated with the port h through a first stop valve, and is also communicated with the port m of the water side heat exchanger through a second stop valve;
The port b of the compressor is communicated with the outlet end of the gas-liquid separator, the inlet end of the gas-liquid separator is communicated with the port m of the water side heat exchanger through a third stop valve, and the inlet end of the gas-liquid separator is also communicated with the port j through a fourth stop valve;
The port c of the compressor is communicated with the port g of the economizer;
An e port of the economizer is communicated with an n port of the water side heat exchanger through a second electromagnetic valve, a first one-way valve and a third expansion valve, and the conduction direction of the first one-way valve is from the e port to the n port; the e port of the economizer is also communicated with the i port through a fourth electromagnetic valve, a third one-way valve and a second expansion valve, and the conduction direction of the third one-way valve is from the e port to the i port;
The j port is also communicated with the inlet end of the liquid storage device through a fourth one-way valve and a fifth electromagnetic valve, and the conduction direction of the fourth one-way valve is from the j port to the liquid storage device; the outlet end of the liquid storage device is communicated with a port d of the economizer, and the outlet end of the liquid storage device is also communicated with a port f of the economizer through a first electromagnetic valve and a first expansion valve;
The n ports of the water side heat exchanger are also communicated with the inlet end of the liquid storage device through a second one-way valve and a third electromagnetic valve, and the conduction direction of the second one-way valve is from the n ports to the liquid storage device;
And the p port of the water side heat exchanger is communicated with the o port through the tail end heat exchanger.
Compared with the prior art, the utility model discloses following positive effect has: (1) the utility model discloses an evaporative condenser has liquid feed mouth and air inlet, liquid feed mouth and air inlet pass through tee bend pipe fitting and connect the condenser pipe, be equipped with the liquid supply valve on the liquid feed pipeline, be equipped with the check valve on the air intake pipeline, can switch between two kinds of modes of supplying liquid and admitting air, the two mutual noninterference, use as the condenser during refrigeration in summer, lead in high-temperature gas from the intake manifold and cool off, use as the evaporimeter during heating in winter, lead in supercooled liquid from the liquid feed pipe, become low temperature low pressure gas after the heat transfer, be favorable to simplifying the supporting pipeline of heat pump system simultaneously; (2) the shape of the condensation pipe body is an oval aluminum pipe formed in one step, and an upper group and a lower group of longitudinal fins are added, so that the heat exchange area is increased, the heat exchange efficiency is improved, and the refrigerating and heating effects are effectively improved; (3) the PVC packing layer is added, the spraying liquid is fully contacted with the PVC packing when falling back, the falling time is delayed, the PVC packing layer and the PVC packing layer perform full heat exchange, the temperature of the liquid in the water collecting tank is reduced (improved in winter) in summer, the heat exchange temperature difference is increased, the heat transfer efficiency is improved, the splashing phenomenon when the spraying liquid falls back is effectively reduced, and the loss rate of the circulating liquid is reduced.
On the other hand, the utility model provides a heat pump system both can realize the high-efficient refrigeration in summer, can also realize the high-efficient heating in winter, is equipped with the economizer simultaneously, heats the mode in winter under ambient temperature when 0-10 ℃, can move the jet enthalpy gain of economizer, ensures that the compressor still can higher efficiency operation.
Drawings
fig. 1 is a schematic structural diagram of a multifunctional evaporative condenser.
FIG. 2 is a schematic view of the coil pack, air direction and water flow direction.
Fig. 3 is a schematic structural view of the condensation duct.
Fig. 4 is a schematic structural view of the coil group.
Fig. 5 is a partially enlarged view of a portion a in fig. 1 for showing a structure of a switching device portion.
fig. 6 is a schematic diagram of the working flow of the heat pump system in the summer refrigeration cycle.
Fig. 7 is a schematic view of the working flow of the heating cycle of the heat pump system in winter.
Detailed Description
The technical scheme of the utility model is explained in detail below with the attached drawings:
Referring to fig. 1, a multifunctional evaporative condenser 3 comprises a body, wherein the body comprises an upper tank body 3-1 and a lower tank body 3-2, a spraying assembly 3-5 and a coil group 3-6 positioned below the spraying assembly 3-5 are arranged in the upper tank body 3-1, and the coil group 3-6 is positioned at the lowest end of the upper tank body 3-1.
As shown in fig. 2 to 4, the coil group 3-6 comprises a plurality of condenser tubes in the form of coil tubes mounted on three sets of vertical tube sheets 3-6-3. The condenser pipe comprises a plurality of condenser pipe sections 3-6-1 which are sequentially connected end to end through bent connecting pipes 3-6-2. The condensation pipe section 3-6-1 is an aluminum pipe, the cross section of the pipe body 3-6-1-2 is in an oval shape with the height larger than the width, the outer side of the top and the outer side of the bottom of the pipe body 3-6-1-2 are respectively connected with a longitudinal fin 3-6-1-1 which is formed in one step, and the direction of the fin 3-6-1-1 is consistent with the direction of the pipe body 3-6-1-2. The aluminum tube material and the fin 3-6-1-1 structure effectively improve the heat exchange efficiency, and solve the technical problem that the evaporative condenser 3 is insufficient in heat exchange area when used as an evaporator, so that the high-efficiency refrigeration and heating can be realized.
as shown in fig. 3, each condensing tube section 3-6-1 is arranged obliquely, the inlet end of the condensing tube section 3-6-1 is higher than the outlet end, and the inclination angle thereof is preferably in the range of 0.5-1 ° to facilitate the liquid flow.
the lower tank body 3-2 is provided with a water collecting tank 3-9 positioned below the coil group 3-6 and used for containing enough circulating liquid. The water collecting tank 3-9 also needs to be subjected to antiseptic treatment.
The evaporative condenser 3 also comprises outlet headers 3-14, and the outlet ends of the condenser pipes are communicated with the inlet ends of the outlet headers 3-14.
The lower box body 3-2 also comprises a PVC filler layer 3-7 which is positioned above the water collecting tank 3-9 and below the coil pipe group 3-6.
The top of the upper box body 3-1 is also provided with a fan 3-3, the side wall of the lower box body 3-2 is also provided with an air inlet 3-8, and the air inlet 3-8 is positioned below the PVC packing layer 3-7 and above the water collecting tank 3-9.
The upper box body 3-1 is also internally provided with a water collector 3-4, and the water collector 3-4 is positioned below the fan 3-3, so that water drops in the air can be effectively intercepted, and the water floating rate is reduced.
The evaporative condenser 3 also comprises a water pump 3-10 arranged in the lower box body 3-2, the inlet end of the water pump 3-10 is communicated with the water collecting tank 3-9, and the outlet end is communicated with the spraying component 3-5 through a pipeline. Circulating liquid in the water collecting grooves 3-9 is sucked by the water pumps 3-10, water is uniformly sprayed on the coil pipe groups 3-6 through the spraying assemblies 3-5 to form film-shaped flow, and the film-shaped flow falls into the water collecting grooves 3-9 through the PVC packing layers 3-7.
Air enters from the air inlet 3-8 and exchanges heat with falling liquid in the PVC packing layer 3-7, so that the heat exchange temperature difference between the liquid and the coil group 3-6 is increased, and preparation is made for next heat exchange between the liquid and the coil group 3-6. The air passes through the coil group 3-6, the air and the spraying liquid are combined to exchange heat with the coil group, the air mixed with a plurality of water drops intercepts the water drops in the air through the water collector 3-4, the water floating rate is effectively reduced, and the air is discharged by the fan 3-3.
the evaporative condenser 3 also comprises an air inlet header 3-11, a liquid supply pipe 3-12 and a liquid separation head 3-13. As shown in fig. 5, the outlet end of the inlet manifold 3-11 is connected with a plurality of inlet branch pipes, the inlet branch pipes correspond to the condenser pipes one by one, each inlet branch pipe also corresponds to a tee pipe fitting 3-16, the first joint end of the tee pipe fitting 3-16 is connected with the outlet end of the inlet branch pipe, the second joint end is connected with the inlet end of the corresponding condenser pipe, each inlet branch pipe is also provided with an inlet check valve 3-15, and the conduction direction of the inlet check valve 3-15 is from the inlet manifold 3-11 to the tee pipe fitting 3-16; the outlet ends of the liquid supply pipes 3 to 12 are connected with liquid dividing heads 3 to 13, the liquid dividing heads 3 to 13 are provided with liquid dividing branches which correspond to the three-way pipe fittings 3 to 16 one by one, and each liquid dividing branch is respectively connected with the third joint ends of the corresponding three-way pipe fittings 3 to 16. The air conditioner can be used as a condenser when refrigerating in summer, the liquid supply pipes 3-12 are closed through an external valve, and high-temperature air is introduced from the air inlet collecting pipes 3-11 for cooling. The evaporator is used as an evaporator during heating in winter, the liquid supply pipes 3-12 are opened through the external valve, the supercooled liquid is introduced from the liquid supply pipes 3-12 and becomes low-temperature and low-pressure gas after heat exchange, and the gas inlet one-way valves 3-15 are arranged, so that the liquid cannot enter a gas pipeline. The supply tubes 3-12 can be blocked if used as a condenser only.
In summer circulation, softened water is adopted as liquid, and air and water exchange heat with high-temperature and high-pressure refrigerant gas in the coil groups 3-6 at the same time, so that the condensation temperature of less than or equal to 40 ℃ can be achieved, and the refrigeration efficiency is higher.
The winter circulating liquid adopts glycol aqueous solution. The freezing point temperature of the ethylene glycol aqueous solution is lower than the surface temperature of the evaporator and the lowest environmental temperature, so that the problems of frosting on the surfaces of the coil groups 3-6, incapability of normal heat exchange of the coil groups 3-6, freezing of sprayed circulating liquid and the like are solved, frostless and efficient operation in a heating mode in winter is ensured, the working mode of the evaporative condenser 3 does not need to be frequently switched for defrosting, the switching is only carried out once during season change in one year, and the service life is prolonged.
Other aspects of the evaporative condenser 3: an air inlet temperature and humidity probe is arranged at the position 3-8 of an air inlet, a concentration monitoring device, a liquid level alarm device, an automatic liquid supplementing device and the like are arranged in a water collecting tank, a fan 3-3 and a water pump 3-10 are controlled by adopting a frequency converter, the fan 3-3 and the water pump 3-10 are controlled by the frequency converter, the water-vapor ratio of refrigeration and heating conditions can be considered, the heat exchange effect of a coil group 3-6 is ensured, the loss rate of spraying liquid is reduced, and the operation cost is saved. The PLC electric appliance control system can automatically calculate the dew point temperature of air, the evaporation temperature of the automatic control system is lower than the dew point temperature of air inlet, partial water vapor in the air is condensed, convective heat transfer and phase change heat transfer exist between the air and the evaporator at the same time, and the heat exchange efficiency is high. As various factors such as condensation of water vapor in air, rain and snow weather, water drifting of the heat pump type evaporative condenser 3, ethylene glycol volatility and the like influence the concentration of ethylene glycol, the PLC electric appliance protection system sets concentration alarm reminding to ensure the concentration of the ethylene glycol aqueous solution and ensure that the coil groups 3-6 can always be free from defrosting.
As shown in fig. 6 and 7, the present embodiment also relates to a heat pump system based on the above multifunctional evaporative condenser 3, which comprises a compressor 1, an oil separator 2, a liquid accumulator 4, an economizer 5, a water side heat exchanger 6, a gas-liquid separator 7, a terminal heat exchanger 8 and the evaporative condenser 3;
the compressor 1 has an outlet port a, a first inlet port b and a second inlet port c; the economizer 5 is provided with a first inlet d and a first outlet e communicated with the d, and is also provided with a second inlet f and a second outlet g communicated with the f;
setting the inlet end of the air inlet manifold 3-11 of the evaporative condenser 3 as an h port, the inlet end of the liquid supply pipe 3-12 as an i port, and the outlet end of the outlet manifold 3-14 as a j port;
The water side heat exchanger 6 is provided with a first refrigerant interface m port, a second refrigerator interface n port communicated with the m port, a first water side interface o port and a second water side interface p port communicated with o;
The port a of the compressor 1 is communicated with the inlet end of an oil separator 2, the outlet end of the oil separator 2 is communicated with the port h through a first stop valve 11, and is also communicated with the port m of the water side heat exchanger 6 through a second stop valve 12;
The port b of the compressor 1 is communicated with the outlet end of the gas-liquid separator 7, the inlet end of the gas-liquid separator 7 is communicated with the port m of the water-side heat exchanger 6 through a third stop valve 13, and the inlet end of the gas-liquid separator 7 is also communicated with the port j through a fourth stop valve 14;
the port c of the compressor 1 is communicated with the port g of the economizer 5;
an e port of the economizer 5 is communicated with an n port of the water side heat exchanger 6 through a second electromagnetic valve 22, a first one-way valve 41 and a third expansion valve 33, and the conduction direction of the first one-way valve 41 is from the e port to the n port; the e port of the economizer 5 is also communicated with the i port through a fourth electromagnetic valve 24, a third one-way valve 43 and a second expansion valve 32, and the conducting direction of the third one-way valve 43 is from the e port to the i port; the fourth electromagnetic valve 24 is used to control the on/off of the liquid supply pipes 3-12, i.e. the external valve, and can be matched with the air inlet check valves 3-15 to realize the switching of the condenser/evaporator modes.
the j port is also communicated with the inlet end of the liquid storage device 4 through a fourth one-way valve 44 and a fifth electromagnetic valve 25, and the communication direction of the fourth one-way valve 44 is from the j port to the liquid storage device 4; the outlet end of the liquid storage device 4 is communicated with the port d of the economizer 5, and the outlet end of the liquid storage device 4 is also communicated with the port f of the economizer 5 through a first electromagnetic valve 21 and a first expansion valve 31;
The n ports of the water side heat exchanger 6 are also communicated with the inlet end of the liquid storage device 4 through a second one-way valve 42 and a third electromagnetic valve 23, and the conduction direction of the second one-way valve 42 is that the n ports face the liquid storage device 4;
The p port of the water side heat exchanger 6 is communicated with the o port through the tail end heat exchanger 8.
the stop valve can be replaced by valve elements such as a four-way reversing valve, and the expansion valve can be an electronic expansion valve or a thermal expansion valve.
as shown in fig. 6, during refrigeration in summer, the high-temperature and high-pressure refrigerant gas discharged from the compressor 1 enters the oil separator 2, the gas after oil-gas separation enters the h port of the evaporative condenser 3 through the first stop valve 11, is condensed into saturated liquid and then is discharged from the j port, and enters the liquid reservoir 4 through the fourth check valve 44 and the fifth electromagnetic valve 25, the liquid discharged from the liquid reservoir 4 is divided into two paths, one path is a throttling evaporation auxiliary pipeline, and the other path is a main liquid supply path. Throttling evaporation auxiliary pipeline: the liquid enters the f port of the economizer 5 through the first electromagnetic valve 21 and the first expansion valve 31, exchanges heat with the liquid in the main liquid supply path in the economizer 5, becomes superheated gas, is discharged from the g port of the economizer 5, and enters the c port of the compressor 1. A main liquid supply path: the liquid enters the port d of the economizer 5, is cooled into supercooled liquid by the liquid of the throttling evaporation auxiliary pipeline, the supercooled liquid is discharged from the port e of the economizer 5, enters the port n of the water side heat exchanger 6 through the second electromagnetic valve 22, the first one-way valve 41 and the third expansion valve 33, exchanges heat with the secondary refrigerant in the water side heat exchanger 6 to become low-temperature and low-pressure gas, is discharged from the port m, enters the gas-liquid separator 7 through the third stop valve 13, is sucked into the port b of the compressor 1 after being subjected to gas-liquid separation, and enters the next refrigeration cycle.
the evaporative condenser 3 is used as a refrigerant path of the condenser and enters from the port h, passes through the air inlet check valve 3-15, the tee pipe 3-16 and the coil group 3-6 and finally is discharged from the port j.
The economizer 5 may not be operated in the summer cooling mode.
as shown in fig. 7, during heating in winter, high-temperature and high-pressure refrigerant gas discharged from the compressor 1 enters the oil separator 2, the gas after oil-gas separation enters the m-port of the water-side heat exchanger 6 through the second stop valve 12, is condensed into saturated liquid and then is discharged from the n-port, and enters the liquid reservoir 4 through the second check valve 42 and the third electromagnetic valve 23, and the liquid discharged from the liquid reservoir 4 is divided into two paths, namely, one path of throttling evaporation line and one path of main liquid supply line. Throttling an evaporation pipeline: the liquid enters the f port of the economizer 5 through the first solenoid valve 21 and the first expansion valve 31, evaporates and absorbs heat in the economizer 5 to become superheated gas, and is discharged from the g port of the economizer 5 to enter the c port of the compressor 1. A main liquid supply path: the liquid enters a port d of the economizer 5, is throttled, evaporated and cooled by the liquid to form supercooled liquid, the supercooled liquid is discharged from a port e of the economizer 5, enters a port i of the evaporative condenser 3 through a fourth electromagnetic valve 24, a third one-way valve 43 and a second expansion valve 32, exchanges heat with air and water in a coil group 3-6 to form low-temperature and low-pressure gas, is discharged from a port j, enters a gas-liquid separator 7 through a fourth stop valve 14, enters a port b of the compressor 1 after being subjected to gas-liquid separation, and enters the next heating cycle.
The refrigerant path of the evaporative condenser 3 as an evaporator is the i port, the liquid supply pipe 3-12, the liquid separation head 3-13, the tee pipe 3-16 and the coil group 3-6, and finally is discharged from the j port.
the economizer 5 is operated in a winter heating mode for enhanced vapor injection, so that the compressor 1 can still be operated at higher efficiency.
When the device works, the flow direction of the pipeline is controlled by controlling the on-off of the stop valve and the electromagnetic valve.
the utility model provides a single valve tee bend structure can make evaporative condenser 3 can regard as the evaporimeter to use, and the confession liquid is even, can not cause evaporation heat transfer area extravagant.
Claims (8)
1. The utility model provides a multi-functional evaporative condenser, includes the organism, the organism includes upper box (3-1) and lower box (3-2), is equipped with spray assembly (3-5) and coil group (3-6) that are located spray assembly (3-5) in upper box (3-1), coil group (3-6) include a plurality of condenser pipes, be equipped with in lower box (3-2) and be located coil group (3-6) below sump (3-9), evaporative condenser (3) still include outlet manifold (3-14), the exit end of each condenser pipe all is linked together with the entrance point of outlet manifold (3-14), its characterized in that: the evaporative condenser (3) also comprises an air inlet header (3-11), a liquid supply pipe (3-12) and a liquid separation head (3-13); the outlet end of the air inlet collecting pipe (3-11) is connected with a plurality of air inlet branch pipes, the air inlet branch pipes correspond to the condensation pipes one by one, each air inlet branch pipe also corresponds to a three-way pipe fitting (3-16), the first interface end of the three-way pipe fitting (3-16) is connected with the outlet end of the air inlet branch pipe, the second interface end of the three-way pipe fitting is connected with the inlet end of the corresponding condensation pipe, each air inlet branch pipe is also provided with an air inlet one-way valve (3-15), and the conduction direction of the air inlet one-way valve (3-15) is from the air inlet collecting pipe (3-11) to the three-way pipe fitting (3-16); the outlet end of the liquid supply pipe (3-12) is connected with a liquid separation head (3-13), the liquid separation head (3-13) is provided with liquid separation branches which correspond to the three-way pipe fittings (3-16) one by one, and each liquid separation branch is connected with the third interface end of the corresponding three-way pipe fitting (3-16).
2. the multifunctional evaporative condenser as set forth in claim 1, wherein: the condenser pipe comprises a plurality of condenser pipe sections (3-6-1) which are sequentially connected end to end through bent connecting pipes (3-6-2), the cross section of a pipe body (3-6-1-2) of each condenser pipe section (3-6-1) is in an oval shape with the height larger than the width, vertical fins (3-6-1-1) are further connected to the outer side of the top and the outer side of the bottom of the pipe body (3-6-1-2) respectively, and the trend of the fins (3-6-1-1) is consistent with that of the pipe body (3-6-1-2).
3. the multifunctional evaporative condenser as set forth in claim 2, wherein: each condensing pipe section (3-6-1) is obliquely arranged, and the inlet end of each condensing pipe section (3-6-1) is higher than the outlet end.
4. The multifunctional evaporative condenser as set forth in claim 3, wherein: the inclination angle range of the condensing tube section (3-6-1) is 0.5-1 degrees.
5. The multifunctional evaporative condenser as set forth in claim 1, wherein: the lower box body (3-2) also comprises a PVC packing layer (3-7) which is positioned above the water collecting tank (3-9) and below the coil group (3-6).
6. the multifunctional evaporative condenser as set forth in claim 5, wherein: the top of the upper box body (3-1) is also provided with a fan (3-3), the side wall of the lower box body (3-2) is also provided with an air inlet (3-8), and the air inlet (3-8) is positioned below the PVC packing layer (3-7) and above the water collecting tank (3-9).
7. The multifunctional evaporative condenser as set forth in claim 1, wherein: the water spraying device is characterized by further comprising a water pump (3-10) arranged in the lower box body (3-2), wherein the inlet end of the water pump (3-10) is communicated with the water collecting tank (3-9), and the outlet end of the water pump is communicated with the spraying assembly (3-5) through a pipeline.
8. A heat pump system, characterized by: comprising a multifunctional evaporative condenser (3) according to any of claims 1 to 7, further comprising a compressor (1), an oil separator (2), a reservoir (4), an economizer (5), a water side heat exchanger (6), a gas-liquid separator (7) and a terminal heat exchanger (8);
The compressor (1) is provided with an outlet port a, a first inlet port b and a second inlet port c; the economizer (5) is provided with a first inlet d and a first outlet e communicated with the d, and is also provided with a second inlet f and a second outlet g communicated with the f;
Setting the inlet end of the air inlet manifold (3-11) of the evaporative condenser (3) as an h port, the inlet end of the liquid supply pipe (3-12) as an i port and the outlet end of the outlet manifold (3-14) as a j port;
The water side heat exchanger (6) is provided with a first refrigerant interface m port, a second refrigerator interface n port communicated with the m port, a first water side interface o port and a second water side interface p port communicated with o;
The port a of the compressor (1) is communicated with the inlet end of the oil separator (2), the outlet end of the oil separator (2) is communicated with the port h through a first stop valve (11), and is also communicated with the port m of the water side heat exchanger (6) through a second stop valve (12);
The b port of the compressor (1) is communicated with the outlet end of the gas-liquid separator (7), the inlet end of the gas-liquid separator (7) is communicated with the m port of the water side heat exchanger (6) through a third stop valve (13), and the inlet end of the gas-liquid separator (7) is also communicated with the j port through a fourth stop valve (14);
the port c of the compressor (1) is communicated with the port g of the economizer (5);
An e port of the economizer (5) is communicated with an n port of the water side heat exchanger (6) through a second electromagnetic valve (22), a first one-way valve (41) and a third expansion valve (33), and the conduction direction of the first one-way valve (41) is from the e port to the n port; the e port of the economizer (5) is also communicated with the i port through a fourth electromagnetic valve (24), a third one-way valve (43) and a second expansion valve (32), and the communication direction of the third one-way valve (43) is from the e port to the i port;
The j port is also communicated with the inlet end of the liquid storage device (4) through a fourth one-way valve (44) and a fifth electromagnetic valve (25), and the communication direction of the fourth one-way valve (44) is from the j port to the liquid storage device (4); the outlet end of the liquid storage device (4) is communicated with a port d of the economizer (5), and the outlet end of the liquid storage device (4) is also communicated with a port f of the economizer (5) through a first electromagnetic valve (21) and a first expansion valve (31);
The n ports of the water side heat exchanger (6) are also communicated with the inlet end of the liquid storage device (4) through a second one-way valve (42) and a third electromagnetic valve (23), and the conduction direction of the second one-way valve (42) is that the n ports face the liquid storage device (4);
And a port p of the water side heat exchanger (6) is communicated with a port o through the tail end heat exchanger (8).
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| CN201920453245.8U CN209744778U (en) | 2019-04-04 | 2019-04-04 | Multifunctional evaporative condenser and heat pump system based on same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113587498A (en) * | 2021-07-15 | 2021-11-02 | 浙江国祥股份有限公司 | Supercooling type efficient evaporative condenser |
| CN113739599A (en) * | 2020-05-28 | 2021-12-03 | 中国联合网络通信集团有限公司 | Cooling system |
-
2019
- 2019-04-04 CN CN201920453245.8U patent/CN209744778U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113739599A (en) * | 2020-05-28 | 2021-12-03 | 中国联合网络通信集团有限公司 | Cooling system |
| CN113587498A (en) * | 2021-07-15 | 2021-11-02 | 浙江国祥股份有限公司 | Supercooling type efficient evaporative condenser |
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