CN215724259U - Cooling separation type evaporation cooling type air-cooled heat pump unit - Google Patents
Cooling separation type evaporation cooling type air-cooled heat pump unit Download PDFInfo
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- CN215724259U CN215724259U CN202121289358.2U CN202121289358U CN215724259U CN 215724259 U CN215724259 U CN 215724259U CN 202121289358 U CN202121289358 U CN 202121289358U CN 215724259 U CN215724259 U CN 215724259U
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Abstract
The utility model discloses a cooling separation type evaporation cooling type air-cooled heat pump unit which comprises a refrigerant pump pushing module, a rectifying module, a cold and heat source heat exchanger module, a drying module and a use side module. The evaporation cold water cooling unit is miniaturized in a refrigeration host machine and matched with a low-power single-loop screw compressor or a scroll compressor, an air source heat exchanger is additionally arranged in parallel with a cold source side (outdoor side) heat exchanger in an evaporation cooling unit by taking an air cooling cold (hot) water (heat pump) module unit as a template, and an air-water integrated module unit is formed; meanwhile, the outdoor heat exchanger can be externally connected with a ground source, a sewage source (waste heat source) and a solar heat exchanger which are connected with the cooling tower in parallel, and the cold and heat multiple-source complementary advantage utilization of the heat pump unit can be realized. The utility model can realize the miniaturization of large-scale units, the integration of freezing and cooling, the integration of air cooling and evaporation cooling, the diversification of cold sources and heat sources, the high efficiency of refrigeration and heating and the convenience of installation, operation and maintenance.
Description
Technical Field
The utility model relates to the field of heat exchangers, in particular to a cooling separation type evaporation cooling type air-cooled heat pump unit.
Background
The existing evaporation cold and heat pump unit takes water as a cooling medium for refrigeration, and can make a refrigerant obtain lower condensation temperature than water cooling, particularly an air cooling mode by utilizing the latent heat of the water and a sensible heat exchange mode, so that the evaporation cold and heat pump unit has higher refrigeration efficiency; when heating, air is used as a heat source, so that the problem that a water cooling unit, including an evaporation cooling unit, is low in heating efficiency or cannot heat at all is solved.
However, in the existing evaporation heat pump unit, because the cold source heat exchanger, namely the evaporation heat exchanger, and the heat source heat exchanger, namely the air cooling heat exchanger, are integrated, the existing unit is large in size, and the number of internal components in the unit is large, the pipeline design is complex, so that the equipment manufacturing cost is high, and the unit is not favorable for popularization.
Specifically, the existing evaporation cold and hot pump unit has the following defects:
the volume is bigger: because the cooling water sprays from the spray (water distributor) and flows through the evaporative condensation heat exchanger in turn along with the cooling water in the cooling water and refrigerant heat exchange temperature rise process and the cooling water and air heat exchange temperature drop process, the stroke of the packing layer dropping into the cooling water tank is too long, so that the longitudinal height of the evaporative heat pump unit is increased, the unit volume is increased, and the corresponding unit manufacturing cost is increased. In order to ensure uniform water distribution on the surface of the evaporative cooling heat exchanger, enough clearance is required to be left between the sprayer and the evaporator; in order to fully cool the cooling water after heat exchange with the refrigerant, the cooling water dropped from the evaporative cooling heat exchanger and the water surface of the cooling water tank should keep a quite long distance, so that a large amount of cooling water can be taken away by a fan when the unit works, water splashing and water floating phenomena are formed, the waste of the cooling water is caused, the cooling water is attached to the surface of a unit component to cause the corrosion of the unit, and the service life of the unit is shortened.
The heating attenuation is serious: the evaporative cooling is the most efficient cooling method, so that the unit has higher cooling efficiency, but the heating capacity in the air-cooled heat pump mode is attenuated along with the reduction of the outdoor environment temperature, so the heating efficiency under the low-temperature working condition needs to be improved.
Based on the technical limitation of evaporation cold and hot pump unit, this application has proposed a cooling separation type evaporation cooling formula air-cooled heat pump unit.
Disclosure of Invention
The application aims at solving the problems that the existing evaporation cold and hot pump unit is high in energy consumption, large in size, high in manufacturing cost, serious in heating attenuation, and the evaporation cooling environment in the unit has water flying and water floating phenomena.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
a cooling separation type evaporation cooling type air-cooled heat pump unit comprises a refrigerant pump pushing module, a rectifying module, a cold and heat source heat exchanger module, a drying module and a use side module.
The refrigerant pump pushing module comprises a compressor, wherein the compressor is provided with a steam jet port and a gas return port;
the compressor is communicated with a gas-liquid separator;
the steam jet port is communicated with nodes A1 and A2 of the cold and heat source heat exchanger module and a node B of the use side module through the multi-way valve group and the pipeline; a node C communicated with a gas-liquid separator is formed between the node A1 (or A2) and the node B through a multi-way valve group and a pipeline;
the return air port forms a node D communicated to the gas-liquid separator through a pipeline;
the gas-liquid separator is provided with a node C 'and a node D' which are communicated with the refrigerant pumping module.
Optionally, the multi-way valve group comprises a first four-way valve and a second four-way valve, the steam jet port, the node a1 and the node C are respectively communicated with three valve ports of the first four-way valve through pipelines, the node a2, the node B and the node C are respectively communicated with three valve ports of the second four-way valve through pipelines, and the rest valve ports of the first four-way valve and the second four-way valve are communicated with each other through a first connecting pipe;
optionally, the multi-way valve group is a first three-way valve, a second three-way valve and a third three-way valve, the steam injection port and the parallel nodes a1 and a2 are respectively communicated with two valve ports of the first three-way valve through pipelines, the node B and the parallel nodes a1 and a2 are respectively communicated with two valve ports of the third three-way valve through pipelines, the remaining valve ports of the first three-way valve and the third three-way valve are communicated with each other through a second connecting pipe, and the node B, the node C and the parallel nodes a1 and a2 are respectively communicated with three valve ports of the second three-way valve through pipelines;
optionally, the multi-way valve group includes a first two-way valve, a second two-way valve, a third two-way valve, a fourth two-way valve, a ninth two-way valve and a tenth two-way valve, the vapor injection port is communicated between the first two-way valve and the second two-way valve through a pipeline, the nodes a1 and a2 are connected in parallel and then communicated with the first two-way valve, the third two-way valve and the tenth two-way valve respectively, the first two-way valve is connected in series with the second two-way valve and the ninth two-way valve and then communicated with the node B, the third two-way valve is connected in series with the fourth two-way valve and then communicated with the node B, the tenth two-way valve is communicated between the second two-way valve and the ninth two-way valve through a pipeline, and the node C is communicated between the third two-way valve and the fourth two-way valve through a pipeline.
The rectification module comprises a node F communicated with the cold and heat source heat exchanger module, a node G communicated with the use side module, a node H communicated with the drying module and a node I, wherein the node F is formed by the multi-way valve group and a pipeline;
optionally, the multi-way valve group is a third four-way valve, and the node F, the node G, the node H and the node I are respectively communicated with four valve ports thereof through pipelines;
optionally, the multi-way valve group is a fourth three-way valve and a fifth three-way valve which are arranged in parallel, the node F, the node H and the node I are respectively communicated with three valve ports of the fourth three-way valve through pipelines, and the node G, the node H and the node I are respectively communicated with three valve ports of the fifth three-way valve through pipelines;
optionally, the multi-way valve group is a fifth two-way valve and a sixth two-way valve connected in series, and a seventh two-way valve and an eighth two-way valve connected in series and arranged in parallel with the fifth two-way valve and the sixth two-way valve, the node F is connected between the fifth two-way valve and the sixth two-way valve, the node G is connected between the seventh two-way valve and the eighth two-way valve, the node H is connected between the sixth two-way valve and the eighth two-way valve, and the node I is connected between the fifth two-way valve and the seventh two-way valve;
optionally, the multi-way valve group comprises a first check valve and a second check valve which are connected in series, and a third check valve and a fourth check valve which are connected in series and are arranged in parallel with the first check valve and the second check valve.
The cold and heat source heat exchanger module comprises an evaporative cooling heat exchanger, an air source heat exchanger, nodes A1' and A2' which are formed by a multi-way valve group and a pipeline and are respectively communicated to the refrigerant pump pushing module, and a node F ' which is communicated to the rectifying module;
optionally, the multi-way valve group is a sixth three-way valve, the evaporative cooling heat exchanger, the air source heat exchanger and the node F ' are respectively communicated with three valve ports of the sixth three-way valve through pipelines, the evaporative cooling heat exchanger is communicated to the refrigerant pump pushing module through a node a1', and the air source heat exchanger is communicated to the refrigerant pump pushing module through a node a2 ';
optionally, the multi-way valve set includes an eleventh two-way valve and a twelfth two-way valve, the eleventh two-way valve is communicated between the air source heat exchanger and the node F ', the twelfth two-way valve is communicated between the evaporative cooling heat exchanger and the node F', the evaporative cooling heat exchanger is communicated to the refrigerant pump pushing module through a node a1', and the air source heat exchanger is communicated to the refrigerant pump pushing module through a node a 2'.
Optionally, the evaporative cooling heat exchanger is connected with a separate cooling system.
The separated cooling system comprises a cooling water tank, a cooling circulating pump I, a spray water distributor, a cooling circulating pump II and a cooling tower; the cooling circulating pump I is communicated with a cooling water outlet, the spraying water distributor is communicated with a cooling water inlet, and the cooling circulating pump II and the cooling tower are connected in series between the cooling water inlet and the cooling water outlet.
Preferably, the distance between the spraying water distributor and the evaporative cooling heat exchanger is small enough, and the distance between the evaporative cooling heat exchanger and the cooling water tank is small enough, so that the phenomena of water splashing and water floating in the spraying process are prevented to the maximum extent.
Optionally, the evaporative cooling heat exchanger can be further connected with a built-in cooling system.
The built-in cooling system comprises a cooling water tank, a cooling circulating pump I and a spraying water distributor communicated with the cooling circulating pump I through a pipeline.
Optionally, the top ends of the evaporation cold heat exchanger and the air source heat exchanger are provided with induced draft fans.
The drying module comprises a liquid storage device, a drying filter and a cold-warm expansion valve which are connected in series;
the liquid storage device is provided with a node I 'communicated to the rectification module, and the drying filter is provided with a node H' communicated to the rectification module through the cold and warm expansion valve.
A usage-side module comprising an indoor-side heat exchanger;
the indoor side heat exchanger is provided with a chilled water inlet and a chilled water outlet;
the indoor side heat exchanger is also provided with a node B 'communicated with the refrigerant pumping module and a node G' communicated with the rectifying module.
The node a1 and the node a1', the node a2 and the node a2', the node B and the node B ', the node C and the node C ', the node D and the node D ', the node F and the node F ', the node G and the node G ', the node H and the node H ', and the node I ' are correspondingly connected.
The above nodes are for convenience of description, and do not imply that embodiments of the present application must have connecting nodes in exact correspondence with their positions, numbers, and the like.
The multi-way valve set does not refer to a valve body or a valve body set with a specific model, and also comprises a plurality of valve bodies and combinations thereof, wherein the valve bodies and the combinations thereof are composed of valve bodies with different numbers and models for realizing specific pipeline structures and functions. For example, in the refrigerant pump module, the multi-way valve set may be a pipeline full-coverage design formed by combining a two-way valve, a three-way valve and a four-way valve through a matrix.
The application still relates to a cooling separation type evaporative cooling formula forced air cooling allies oneself with unit, it includes above-mentioned any refrigerant pump push away module, rectifier module, cold and hot source heat exchanger module, drying module, user side module.
The use side module comprises a plurality of groups of indoor side heat exchangers which are arranged in parallel.
The utility model has the following beneficial effects:
this application adopts air source heat exchanger and evaporation cold heat exchanger single two-way full coverage bridge type connecting line design, convertible different cluster under different operating modes, parallel mode combined use, make two heat exchangers can not only the exclusive use, still can realize each other for supplementary, change heat transfer medium in good time, adjustment heat transfer area, with higher refrigerant evaporation capacity and condensation volume of obtaining, and then improve refrigeration capacity and heating capacity, improve unit comprehensive efficiency, can avoid the heat exchanger idle when guaranteeing the heat transfer efficiency, avoid total heat transfer area too big and redundant, thereby reduce manufacturing cost, improve the economic nature of evaporation cold and hot pump unit, do benefit to the popularization.
The cooling tower can adopt an externally-introduced separated cooling system, and can separate a cooling water built-in cooling process commonly adopted by the existing evaporation cold and hot pump unit into the cooling tower, so that (1) the cooling water cooling process in the unit can be removed, the height of the unit can be reduced by more than 1/3, the volume of the unit can be reduced, and the manufacturing cost of the unit can be reduced; (2) the evaporative cooling heat exchanger is infinitely close to the cooling water tank at the bottom end of the evaporative cooling heat exchanger, so that the phenomena of water splashing and water floating in the dropping process of cooling water are reduced to the maximum extent, and the waste of the cooling water and the corrosion/aging of a unit caused by the waste of the cooling water are avoided; (3) the cooling water is fully cooled in the external leading type cooling tower, the cooling effect is better than that in the unit, and the refrigeration efficiency can be improved.
The series-parallel connection and series-parallel connection full-coverage connection structure formed by the connection pipelines can realize diversification and optimized utilization of multiple existing cold and heat sources in the refrigeration and heating modes, so that the heat pump is efficient.
The utility model can realize the miniaturization of large-scale units, the integration of freezing and cooling, the integration of air cooling and evaporation cooling, the diversification of cold sources and heat sources, the high efficiency of refrigeration and heating and the convenience of installation, operation and maintenance.
Drawings
The utility model will be further described with reference to the accompanying drawings and specific embodiments,
FIG. 1 is a schematic view of the pipeline structure of the cooling-separated evaporative cooling type air-cooled heat pump unit (external cooling);
FIG. 2 is a schematic view of the pipeline structure of the cooling-separated evaporative cooling type air-cooled heat pump unit (with cooling inside);
FIGS. 3 to 5 are schematic diagrams of the pipeline design of the refrigerant pump module;
6-9 are schematic piping designs for a rectifier module;
FIGS. 10 to 11 are schematic diagrams of the pipeline design of the cold-heat source heat exchanger module;
FIG. 12 is a schematic diagram of a drying module piping design;
FIGS. 13-14 are schematic diagrams of the pipeline design of the user side module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a cooling separation type evaporation cooling type air-cooled heat pump unit includes a refrigerant pump pushing module, a rectifying module, a cold and heat source heat exchanger module, a drying module, and a use side module.
The refrigerant pump pushing module comprises a compressor 11, wherein the compressor 11 is provided with a steam jet port and a gas return port;
the compressor 11 is communicated with a gas-liquid separator;
the steam jet port forms nodes A1 and A2 communicated to the cold and heat source heat exchanger module and a node B communicated to the use side module through the multi-way valve group and the pipeline; a node C communicated to the gas-liquid separator is formed between the node A1 (or can be understood as A2) and the node B through a multi-way valve group and a pipeline;
the return air port forms a node D communicated to the gas-liquid separator through a pipeline;
the gas-liquid separator is provided with a node C 'and a node D' which are communicated with the refrigerant pumping module.
Fig. 3 shows an embodiment of a multi-way valve set in a refrigerant pump module, which includes a first four-way valve Q1 and a second four-way valve Q2, where a steam jet port, a node a1, and a node C are respectively communicated with three valve ports of the first four-way valve Q1 through pipelines, a node a2, a node B, and a node C are respectively communicated with three valve ports of the second four-way valve Q2 through pipelines, and the remaining one valve ports of the first four-way valve Q1 and the second four-way valve Q2 are communicated with each other through a first connection pipe;
fig. 4 to 5 show other embodiments of the multi-way valve set in the refrigerant pump module, which may be a first three-way valve T1, a second three-way valve T2, and a third three-way valve T3, or a first two-way valve L1, a second two-way valve L2, a third two-way valve L3, a fourth two-way valve L4, a ninth two-way valve L9, and a tenth two-way valve L10.
The rectification module comprises a node F communicated with the cold and heat source heat exchanger module, a node G communicated with the use side module, a node H communicated with the drying module and a node I, wherein the node F is formed by the multi-way valve group and a pipeline;
FIG. 6 illustrates an embodiment of a multi-way valve set in a rectifier module, which is a third four-way valve Q3, wherein a node F, a node G, a node H and a node I are respectively communicated with four valve ports thereof through pipelines;
fig. 7 to 9 show other embodiments of the multi-way valve set in the rectifier module, which may be a fourth three-way valve T4 and a fifth three-way valve T5 arranged in parallel, or a fifth two-way valve L5 and a sixth two-way valve L6 arranged in series, and a seventh two-way valve L7 and an eighth two-way valve L8 arranged in series in parallel, or a first check valve S1 and a second check valve S2 arranged in series, and a third check valve S3 and a fourth check valve S4 arranged in series in parallel.
The cold and heat source heat exchanger module comprises an evaporative cooling heat exchanger 21, an air source heat exchanger 22, nodes A1' and A2' which are formed by a multi-way valve group and pipelines and are respectively communicated to the refrigerant pump pushing module, and a node F ' which is communicated to the rectifying module;
fig. 10 shows an embodiment of a multi-way valve set in the cold-heat source heat exchanger module, which is a sixth three-way valve T6, the evaporative cooling heat exchanger 21, the air source heat exchanger 22, and the node F ' are respectively communicated with three valve ports of the sixth three-way valve T6 through pipelines, the evaporative cooling heat exchanger 21 is communicated to the refrigerant pump push module through a node a1', and the air source heat exchanger 22 is communicated to the refrigerant pump push module through a node a2 ';
fig. 11 shows another embodiment of the multi-way valve set in the cold heat source heat exchanger module, which may be an eleventh two-way valve L11, a twelfth two-way valve L12.
In fig. 1, a separate cooling system is connected to the evaporative cooling heat exchanger 21.
The separated cooling system comprises a cooling water tank, a cooling circulating pump I (cooling water pump), a spray water distributor, a cooling circulating pump II (spray pump) and a cooling tower; the cooling circulating pump I is communicated with a cooling water outlet, the spraying water distributor is communicated with a cooling water inlet, and the cooling circulating pump II and the cooling tower are connected in parallel on the cooling water inlet and the cooling water outlet.
The spraying water distributor is closely adjacent to the evaporative cooling heat exchanger 21 and has a small enough distance, and the evaporative cooling heat exchanger 21 is closely adjacent to the cooling water tank and has a small enough distance, so that the phenomena of water splashing and water floating in the spraying process are prevented to the maximum extent.
And draught fans are arranged at the top ends of the evaporative cooling heat exchanger 21 and the air source heat exchanger 22.
In fig. 2, a built-in cooling system is connected to the evaporative cold heat exchanger 21.
The built-in cooling system comprises a cooling water tank, a cooling circulating pump I and a spraying water distributor communicated with the cooling circulating pump I through a pipeline.
Similarly, the spray water distributor and the evaporative cooling heat exchanger 21 should be closely arranged and spaced sufficiently small, and the evaporative cooling heat exchanger 21 and the cooling water tank should be closely arranged and spaced sufficiently small.
In some embodiments, the cooling water inlet and the cooling water outlet can be provided with a waste (hot) water source heat exchanger and a waste (hot) water source control valve in parallel, a solar heat collection heat exchanger and a solar control valve, and a ground (water) source heat exchanger and a ground (water) source control valve, so that diversification and optimal utilization of various existing cold and heat sources in a refrigeration/heating mode can be realized timely.
Referring to fig. 12, the drying module includes a liquid reservoir 31, a drying filter 32, and a cooling/heating expansion valve 33 connected in series;
the reservoir 31 has a node I 'connected to the rectifier module, and the dry filter 32 has a node H' connected to the rectifier module via the cooling/heating expansion valve 33.
Referring to fig. 13, the use-side module, including an indoor-side heat exchanger 41;
the indoor side heat exchanger 41 has a chilled water inlet and a chilled water outlet;
the indoor heat exchanger 41 further has a node B 'connected to the refrigerant pumping module and a node G' connected to the rectifying module.
The node a1 and the node a1', the node a2 and the node a2', the node B and the node B ', the node C and the node C ', the node D and the node D ', the node F and the node F ', the node G and the node G ', the node H and the node H ', and the node I ' are correspondingly connected.
The application also relates to a cooling separation type evaporative cooling type air-cooled multi-connected unit which comprises the refrigerant pump pushing module, the rectifying module, the cold and heat source heat exchanger module, the drying module and the use side module in any embodiment.
As shown in fig. 14, the use-side module includes a plurality of sets of indoor-side heat exchangers 41 arranged in parallel.
The cooling separation type evaporative cooling air-cooled heat pump unit of the present application will be described in detail below with reference to the accompanying drawings and different operation modes of the unit.
Example 1
Air-cooling a conventional refrigeration mode;
a refrigerant circulating system: the ends Q1ob and ai of the first four-way valve are communicated; the ends Q2ob and ai of the second four-way valve are communicated; the end of the sixth three-way valve T6ao is communicated; the end of the third four-way valve Q3ao is communicated with the end bi;
the refrigerant circulation path is: the refrigerant passes through the steam jet of the compressor 11, the first valve port o and the fourth valve port b of the first four-way valve Q1, the first valve port o and the fourth valve port b of the second four-way valve Q2, the air source heat exchanger 22, the second valve port a and the first valve port o of the sixth three-way valve T6, the first valve port o and the third valve port a of the third four-way valve Q3 of the rectification module, the liquid reservoir 31 of the drying module, the drying filter 32, the cooling and heating expansion valve 33, the fourth valve port b and the second valve port i of the third four-way valve Q3 of the rectification module, the indoor side heat exchanger 41, the third valve port a and the second valve port i of the second four-way valve Q2, the gas-liquid separator and the suction port of the compressor 11 in turn to complete a cycle.
A water circulation system:
1) a cooling system: the fan is started, the air source heat exchanger 22 works, the sprayer stops spraying, the cooling water is closed, the spraying pump is closed, and the evaporative cooling heat exchanger 21 stops working. Air from the environment with lower temperature passes over the surface of the air source heat exchanger 22 under the action of the fan, exchanges heat with refrigerant steam flowing through the inside of the heat exchanger, is heated and then is discharged out of the unit under the action of the fan. Refrigerant steam enters the rectification module after being subjected to heat exchange, temperature reduction and liquefaction by the air-cooled heat exchanger.
2) A refrigeration system: the high temperature chilled water from the room passes through the chilled water inlet, the inlet of the indoor side heat exchanger 41 and the indoor side heat exchanger 41 under the action of pump pushing, exchanges heat with the refrigerant liquid flowing through the inside of the heat exchanger to reduce the temperature, then passes through the heat exchanger outlet, the chilled water outlet and the indoor side to supply cold, the liquid refrigerant is vaporized to absorb heat and raise the temperature, and then returns to the compressor 11 to continue the next process. The low-temperature chilled water exchanges heat with indoor air, is heated, and then flows back to the indoor-side heat exchanger 41 to complete a cooling cycle.
Example 2
An evaporative cooling refrigeration mode;
a refrigerant circulating system: the ends of the first four-way valve Q1oa and bi are communicated; the ends Q2ob and ai of the second four-way valve are communicated; the end of the sixth three-way valve T6bo is communicated; the ends bi of the third four-way valve Q3ao are communicated.
Refrigerant circulation path: the refrigerant flows through the steam jet of the compressor 11, the first valve port o and the third valve port a of the first four-way valve Q1, the evaporative cooling heat exchanger 21, the third valve port b and the first valve port o of the sixth three-way valve T6, the first valve port o and the third valve port a of the third four-way valve Q3 of the rectification module, the reservoir 31 of the drying module, the drying filter 32, the cooling and heating expansion valve 33, the fourth valve port b and the second valve port i of the third four-way valve Q3 of the rectification module, the indoor-side heat exchanger 41, the third valve port a and the second valve port i of the second four-way valve Q2 in sequence, and the gas-liquid separator and the suction port of the compressor 11 complete a cycle.
A water circulation system:
1) a cooling system: the cooling water pump is started, the spray pump is started, the fan is started, and the sprayer sprays. The air source heat exchanger 22 terminates its operation.
The cooling water with lower temperature from the cooling tower is sprayed on the surface of the evaporative cooling heat exchanger 21 through a sprayer under the pushing action of a cooling circulating pump, is subjected to heat exchange with refrigerant steam flowing through the inside of the heat exchanger, is heated and then is partially vaporized into steam, is discharged under the action of a fan, is dripped into a cooling water tank by the cooling water pump after being not subjected to evaporative heating, is pushed into the cooling tower by the cooling water pump for cooling, and is sprayed and pumped into a unit sprayer (water distributor) to perform a cooling cycle after being cooled; the refrigerant is cooled and liquefied and then enters the rectification module to continue to circulate.
2) A refrigeration system: the high temperature chilled water from the room passes through the chilled water inlet, the inlet of the indoor side heat exchanger 41 and the indoor side heat exchanger 41 under the action of pump pushing, exchanges heat with the refrigerant liquid flowing through the inside of the heat exchanger to reduce the temperature, then passes through the heat exchanger outlet, the chilled water outlet and the indoor side to supply cold, the liquid refrigerant is vaporized to absorb heat and raise the temperature, and then returns to the compressor 11 to continue the next process. The low-temperature chilled water exchanges heat with indoor air, is heated, and then flows back to the indoor-side heat exchanger 41 to complete a cooling cycle.
Example 3
The air heat source heat pump is in a conventional heating mode;
a refrigerant circulating system: the end Q1ob of the first four-way valve is communicated with the end ai; the end of the second four-way valve Q2oa is communicated with the end bi; the end of the third four-way valve Q3ia is communicated with the end bo; the sixth three-way valve T6ao is open at its end.
Refrigerant circulation path: the refrigerant passes through the steam jet of the compressor 11, the first valve port o and the fourth valve port b of the first four-way valve Q1, the first valve port o and the third valve port a of the second four-way valve Q2, the indoor side heat exchanger 41, the second valve port i and the third valve port a of the third four-way valve Q3 of the rectification module, the liquid storage 31 of the drying module, the drying filter 32, the cooling and heating expansion valve 33, the fourth valve port b and the first valve port o of the third four-way valve Q3 of the rectification module, the first valve port o and the second valve port a of the sixth three-way valve T6, the fourth valve port b and the second valve port i of the second four-way valve Q2, the gas-liquid separator and the suction port of the compressor 11 in sequence to complete one cycle.
A freezing and cooling system:
1) a cooling system: and starting a fan of the cold and heat source heat exchange module, working the air source heat exchanger 22, stopping spraying of the sprayer, closing the cooling water pump, closing the spraying pump, and stopping working the evaporative cooling heat exchanger 21. The air with higher temperature from the environment passes over the surface of the air source heat exchanger 22 under the action of the fan, exchanges heat with the refrigerant liquid flowing through the inside of the heat exchanger to reduce the temperature, and then is discharged out of the unit under the action of the fan. The refrigerant liquid is heated and vaporized by the heat exchange between the air source heat exchanger 22 and the air, and then enters the rectification module.
2) A refrigeration system: the chilled water with lower temperature from the indoor passes through the chilled water inlet, the inlet of the indoor side heat exchanger 41 and the indoor side heat exchanger 41 under the action of pump pushing, exchanges heat with the refrigerant liquid flowing through the inside of the heat exchanger to heat up, then passes through the heat exchanger outlet, the chilled water outlet and the indoor side heat supply, the vapor refrigerant is liquefied to release heat and cool down, then enters the rectification module, and continues the next process. The high-temperature chilled water exchanges heat with indoor air, is cooled, then flows back to the indoor side heat exchanger 41 to continuously absorb heat, and a heat supply cycle is completed.
It should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.
Claims (9)
1. The utility model provides a cooling separation type evaporation cooling formula air-cooled heat pump set which characterized in that: the system comprises a refrigerant pump pushing module, a rectifying module, a cold and heat source heat exchanger module, a drying module and a use side module;
the refrigerant pump pushing module comprises a compressor, and the compressor is provided with a steam jet port and a gas return port;
the compressor is communicated with a gas-liquid separator;
the steam jet port is communicated with nodes A1 and A2 of the cold and heat source heat exchanger module and a node B of the use side module through the multi-way valve group and the pipeline; a node C communicated with the gas-liquid separator is formed between the node A1 and the node B through a multi-way valve group and a pipeline;
the return air port forms a node D communicated to the gas-liquid separator through a pipeline;
the gas-liquid separator is provided with a node C 'and a node D' which are communicated with the refrigerant pumping module;
the rectification module comprises a node F communicated to the cold and heat source heat exchanger module, a node G communicated to the use side module, a node H communicated to the drying module and a node I, wherein the node F is formed by the multi-way valve group and a pipeline;
the cold and heat source heat exchanger module comprises an evaporative cooling heat exchanger, an air source heat exchanger, nodes A1' and A2' which are formed by a multi-way valve group and a pipeline and are respectively communicated to the refrigerant pump pushing module, and a node F ' which is communicated to the rectifying module;
the drying module comprises a liquid storage device, a drying filter and a cold-warm expansion valve which are connected in series;
the liquid storage device is provided with a node I 'communicated to the rectification module, and the drying filter is provided with a node H' communicated to the rectification module through the cold-warm expansion valve;
the usage-side module comprises an indoor-side heat exchanger;
the indoor side heat exchanger is provided with a chilled water inlet and a chilled water outlet;
the indoor side heat exchanger is also provided with a node B 'communicated to the refrigerant pumping module and a node G' communicated to the rectifying module;
the node A1 is correspondingly connected with the node A1', the node A2 is connected with the node A2', the node B is connected with the node B ', the node C is connected with the node C ', the node D is connected with the node D ', the node F is connected with the node F ', the node G is connected with the node G ', the node H is connected with the node H ', and the node I is connected with the node I '.
2. The cooling separation type evaporative cooling type air-cooled heat pump unit according to claim 1, characterized in that:
in the refrigerant pump push module:
the multi-way valve group comprises a first four-way valve and a second four-way valve, the steam jet port, a node A1 and a node C are respectively communicated with three valve ports of the first four-way valve through pipelines, the node A2, the node B and the node C are respectively communicated with three valve ports of the second four-way valve through pipelines, and the rest valve ports of the first four-way valve and the second four-way valve are communicated through a first connecting pipe;
or the multi-way valve group comprises a first three-way valve, a second three-way valve and a third three-way valve, the steam injection port and the parallel nodes A1 and A2 are respectively communicated with two valve ports of the first three-way valve through pipelines, the node B and the parallel nodes A1 and A2 are respectively communicated with two valve ports of the third three-way valve through pipelines, the rest valve ports of the first three-way valve and the third three-way valve are communicated through a second connecting pipe, and the node B, the node C and the parallel nodes A1 and A2 are respectively communicated with three valve ports of the second three-way valve through pipelines;
or the multi-way valve group comprises a first two-way valve, a second two-way valve, a third two-way valve, a fourth two-way valve, a ninth two-way valve and a tenth two-way valve, the steam injection port is communicated between the first two-way valve and the second two-way valve through a pipeline, the nodes A1 and A2 are connected in parallel and then communicated with the first two-way valve, the third two-way valve and the tenth two-way valve respectively, the first two-way valve is connected with the second two-way valve and the ninth two-way valve in series and then communicated with the node B, the third two-way valve is connected with the fourth two-way valve in series and then communicated with the node B, the tenth two-way valve is communicated between the second two-way valve and the ninth two-way valve through a pipeline, and the node C is communicated between the third two-way valve and the fourth two-way valve through a pipeline.
3. The cooling separation type evaporative cooling type air-cooled heat pump unit according to claim 1, characterized in that:
in the rectifier module:
the multi-way valve group is a third four-way valve, and the node F, the node G, the node H and the node I are respectively communicated with four valve ports of the multi-way valve group through pipelines;
or the multi-way valve group comprises a fourth three-way valve and a fifth three-way valve which are arranged in parallel, the node F, the node H and the node I are respectively communicated with three valve ports of the fourth three-way valve through pipelines, and the node G, the node H and the node I are respectively communicated with three valve ports of the fifth three-way valve through pipelines;
or the multi-way valve group comprises a fifth two-way valve, a sixth two-way valve, a seventh two-way valve and an eighth two-way valve which are connected in series and are arranged in parallel, a node F is communicated between the fifth two-way valve and the sixth two-way valve, a node G is communicated between the seventh two-way valve and the eighth two-way valve, a node H is communicated between the sixth two-way valve and the eighth two-way valve, and a node I is communicated between the fifth two-way valve and the seventh two-way valve;
or the multi-way valve group comprises a first check valve and a second check valve which are connected in series, and a third check valve and a fourth check valve which are connected in series and are arranged in parallel.
4. The cooling separation type evaporative cooling type air-cooled heat pump unit according to claim 1, characterized in that:
in the cold heat source heat exchanger module:
the multi-way valve group is a sixth three-way valve, the evaporative cooling heat exchanger, the air source heat exchanger and the node F ' are respectively communicated with three valve ports of the sixth three-way valve through pipelines, the evaporative cooling heat exchanger is communicated to the refrigerant pump pushing module through a node A1', and the air source heat exchanger is communicated to the refrigerant pump pushing module through a node A2 ';
or the multi-way valve group comprises an eleventh two-way valve and a twelfth two-way valve, the eleventh two-way valve is communicated between the air source heat exchanger and the node F ', the twelfth two-way valve is communicated between the evaporative cooling heat exchanger and the node F', the evaporative cooling heat exchanger is communicated to the refrigerant pump pushing module through the node A1', and the air source heat exchanger is communicated to the refrigerant pump pushing module through the node A2'.
5. The cooling separation type evaporative cooling type air-cooled heat pump unit according to claim 1, characterized in that:
the evaporative cooling heat exchanger is connected with a separate cooling system;
the separated cooling system comprises a cooling water tank, a cooling circulating pump I, a spray water distributor, a cooling circulating pump II and a cooling tower; the cooling circulating pump I is communicated with a cooling water outlet, the spraying water distributor is communicated with a cooling water inlet, and the cooling circulating pump II and the cooling tower are connected in series between the cooling water inlet and the cooling water outlet.
6. The cooling separation type evaporative cooling type air-cooled heat pump unit according to claim 1, characterized in that:
the evaporative cooling heat exchanger is connected with a built-in cooling system;
the built-in cooling system comprises a cooling water tank, a cooling circulating pump I and a spraying water distributor communicated with the cooling circulating pump I through a pipeline.
7. The cooling separation type evaporative cooling type air-cooled heat pump unit according to claim 5 or 6, characterized in that:
the spray water distributor is arranged close to the evaporative cooling heat exchanger;
the evaporative cooling heat exchanger is arranged close to the cooling water tank.
8. The cooling separation type evaporative cooling type air-cooled heat pump unit according to claim 7, characterized in that:
and draught fans are arranged at the top ends of the evaporative cooling heat exchanger and the air source heat exchanger.
9. The cooling separation type evaporative cooling type air-cooled heat pump unit according to claim 1, characterized in that:
the use side module comprises a plurality of groups of indoor side heat exchangers which are arranged in parallel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121289358.2U CN215724259U (en) | 2021-06-08 | 2021-06-08 | Cooling separation type evaporation cooling type air-cooled heat pump unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121289358.2U CN215724259U (en) | 2021-06-08 | 2021-06-08 | Cooling separation type evaporation cooling type air-cooled heat pump unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115164282A (en) * | 2022-08-08 | 2022-10-11 | 西南科技大学 | Vacuum membrane dehumidification heating ventilation air-conditioning system and operation control method |
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- 2021-06-08 CN CN202121289358.2U patent/CN215724259U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115164282A (en) * | 2022-08-08 | 2022-10-11 | 西南科技大学 | Vacuum membrane dehumidification heating ventilation air-conditioning system and operation control method |
| CN115164282B (en) * | 2022-08-08 | 2023-06-23 | 西南科技大学 | Vacuum film dehumidification heating ventilation air conditioning system and operation control method |
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