CN210425547U - Phase-change heat accumulating type heating system - Google Patents
Phase-change heat accumulating type heating system Download PDFInfo
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- CN210425547U CN210425547U CN201921488586.5U CN201921488586U CN210425547U CN 210425547 U CN210425547 U CN 210425547U CN 201921488586 U CN201921488586 U CN 201921488586U CN 210425547 U CN210425547 U CN 210425547U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 95
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 274
- 239000003507 refrigerant Substances 0.000 claims abstract description 73
- 238000009825 accumulation Methods 0.000 claims abstract description 32
- 230000008859 change Effects 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims description 26
- 230000007704 transition Effects 0.000 claims description 5
- 230000001172 regenerating effect Effects 0.000 claims 8
- 238000005338 heat storage Methods 0.000 description 54
- 239000011232 storage material Substances 0.000 description 26
- 230000008569 process Effects 0.000 description 24
- 239000002184 metal Substances 0.000 description 14
- 238000012546 transfer Methods 0.000 description 10
- 238000001704 evaporation Methods 0.000 description 9
- 230000008020 evaporation Effects 0.000 description 9
- 238000007599 discharging Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000012782 phase change material Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
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- 239000012530 fluid Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000008400 supply water Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000008236 heating water Substances 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
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Abstract
The utility model provides a phase change heat accumulation formula heating system, it includes: the heat exchanger comprises a refrigerant circulation loop and a water circulation loop, wherein the refrigerant circulation loop is provided with a compressor, a first heat exchanger, a throttling device and a second heat exchanger, the water circulation loop is provided with a heat accumulator and a second heat exchanger, and the refrigerant circulation loop and the water circulation loop exchange heat at the second heat exchanger; and the first ends of the partial pipelines where the heat accumulators are located are also communicated to the cold water inlets through first water pipelines, and the second ends of the partial pipelines where the heat accumulators are located are also communicated to the hot water outlets through second water pipelines. Through the utility model discloses can separate phase change heat accumulation water heater's refrigerant system and water system each other effectively, can improve the charge-discharge efficiency of heat accumulator effectively, improve the system efficiency, and can also prevent effectively that the contaminated water system is revealed to the refrigerant, can guarantee heat accumulation and user's heat supply simultaneously.
Description
Technical Field
The utility model belongs to the technical field of the water heater, concretely relates to phase change heat accumulation formula heating system.
Background
Compared with the traditional electric water heater, the air source heat pump water heater has the advantages of high energy efficiency, large heat supply amount, safe use, no electric leakage hidden trouble and the like. However, the water tank of the heat pump water heater is usually large in size, large in power consumption, high in manufacturing cost and large in influence of the ambient temperature on the heating effect.
The phase-change heat storage device is applied to the air source heat pump water heater, the energy storage material of a phase-change point in a domestic hot water application temperature area is used as a heat storage medium for storing and releasing heat, and the characteristic that the phase-change material absorbs a large amount of phase-change latent heat and the temperature is unchanged when the phase-change material changes the phase is utilized, so that the phase-change heat storage device can store a large amount of heat in a small volume, the heat storage density is improved, the occupied area is reduced, and.
At present, a phase change heat storage water heater usually adopts a mode that a refrigerant directly charges a heat storage material and the heat storage material releases heat to tap water, for example, in a patent with the patent number of CN105588327A, because the refrigerant and water cannot share a heat exchanger pipeline, a part of the refrigerant and a part of water flow through the heat exchanger pipeline in a heat accumulator, the heat charging and discharging efficiency is reduced, and the system energy efficiency is influenced.
And the heat pump system can only supply heat to the heat accumulator but not heat to users when heating, and can not meet the heat demand of the users at any time.
Because phase change heat accumulation heating system among the prior art exists because the heat exchanger pipeline is partly to walk away the refrigerant, partly water, leads to the reduction of charge-discharge efficiency, has influenced the performance of system's efficiency to heat can not supply heat to heat accumulator and user simultaneously when heat pump system heats, can't satisfy technical problem such as many-sided demand, consequently the utility model discloses research and design a phase change heat accumulation heating system.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that the phase change heat storage heating system among the prior art exists and can't guarantee simultaneously the charge and discharge efficiency and guarantee heat accumulation and user's heat supply to a phase change heat storage heating system is provided.
The utility model provides a phase change heat accumulation formula heating system, it includes:
the heat exchanger comprises a refrigerant circulation loop and a water circulation loop, wherein the refrigerant circulation loop is provided with a compressor, a first heat exchanger, a throttling device and a second heat exchanger, the water circulation loop is provided with a heat accumulator and a second heat exchanger, and the refrigerant circulation loop and the water circulation loop exchange heat at the second heat exchanger; and the first ends of the partial pipelines where the heat accumulator is located are also communicated to the cold water inlet through a first water pipeline, and the second ends of the partial pipelines where the heat accumulator is located are also communicated to the hot water outlet through a second water pipeline.
Preferably, the first and second electrodes are formed of a metal,
the water purifier also comprises a third water pipeline, one end of the third water pipeline is communicated to the second water pipeline through a three-way valve, the other end of the third water pipeline is communicated to the first water pipeline, and the three-way valve can communicate at least two of the three connected ends.
Preferably, the first and second electrodes are formed of a metal,
and a second stop valve is further arranged on the part of the pipeline where the heat accumulator is located, and/or a third stop valve is further arranged on the pipeline section of the water circulation loop connected with the part of the pipeline, and/or a circulating water pump is further arranged on the water circulation loop.
Preferably, the first and second electrodes are formed of a metal,
the circulating water pump is also provided with a first branch in parallel, and the first branch is provided with a first stop valve.
Preferably, the first and second electrodes are formed of a metal,
the heat exchanger further comprises a second branch, one end of the second branch is connected to a position between the heat accumulator and the second stop valve, the other end of the second branch is connected to a position between one end of the second heat exchanger and the third stop valve, and a first stop valve' is further arranged on the second branch.
Preferably, the first and second electrodes are formed of a metal,
and the third branch is connected with a position between the second end of the partial pipeline and the third stop valve at one end, connected with a position between the third end of the second heat exchanger and the first end of the partial pipeline at the other end, and provided with a first stop valve ".
Preferably, the first and second electrodes are formed of a metal,
still include the fourth branch road, the one end of fourth branch road is connected to the fourth end of second heat exchanger with position between the third stop valve, the other end is connected to on the second water pipeline, just still be provided with the fourth stop valve on the fourth branch road, just the other end of fourth branch road with partial pipeline still be provided with the fifth stop valve between the second end.
Preferably, the first and second electrodes are formed of a metal,
and a sixth stop valve is arranged between the first end of the part of the pipeline where the heat accumulator is positioned and the third end of the second heat exchanger.
Preferably, the first and second electrodes are formed of a metal,
the heat exchange pipeline in the heat accumulator is a Z-shaped flow path, and/or the heat accumulator is arranged in a mode of going in and out from top to bottom, and water flows in and out from top to bottom when the heat accumulator accumulates heat and flows in and out from bottom when releasing heat.
The utility model provides a pair of phase change heat accumulation formula heating system has following beneficial effect:
1. the utility model discloses a refrigerant circulation loop and water circulation loop and the two through the setting form of second heat exchanger looks heat transfer, and the heat accumulator sets up in water circulation loop, can separate phase change heat accumulation water heater's refrigerant system and water system each other effectively, can improve the charge-discharge efficiency of heat accumulator effectively, improve the system efficiency, and can also prevent effectively that the refrigerant from revealing the contaminated water system; the heat accumulator is provided with only one inlet pipe and one outlet pipe, and the heat charging process and the heat releasing process share one set of pipeline system, so that the heat exchange area of the heat exchanger can be fully utilized, the heat exchange efficiency in the heat charging and discharging process can be further improved, and the system energy efficiency can be improved; the first end of the partial pipeline where the heat accumulator is located is communicated to the cold water inlet, the second end of the partial pipeline is communicated to the hot water outlet, water can be supplied to a user through the heat accumulator for heating, meanwhile, the water can be directly supplied to the user through the heat pump for heating, when the heat is not stored in the heat accumulator enough and heat is needed, the air source heat pump can be selected to directly heat cold water for the user, the heat can be supplied by combining two modes of heat extraction of the heat accumulator and direct heating of cold water by the heat pump, and heat storage and heat supply of the user can be.
2. The heat accumulator of the utility model only has the pipeline of the water system to pass through, the heat storage material is charged with heat and discharged with heat exchange with water, the heat exchange area of the pipeline is fully utilized, and if the aging water of the pipeline leaks in the heat accumulator, no safety problem is caused; the water heater system is divided into a heat pump system and a water system which are connected by an intermediate heat exchanger, any fluid in the system is leaked without mutual influence, and the maintenance is easy.
3. The utility model utilizes the air source heat pump to generate heat and store the heat in the heat storage material in the heat accumulator, the heat storage material exchanges heat with the water in the flow path through the heat accumulator in the heat accumulator, the heat can be stored and taken at any time, the heat accumulation density of the heat accumulator is large, the volume is small, and the space is saved; the heat pump can be combined to directly heat the cold water and the cold water flows through the heat accumulator to obtain heat for users; the direct heat supply of the air source heat pump can be realized; in the heat accumulator, water enters from top to bottom in a heat filling stage and enters from bottom to top in a heat releasing stage, the heat is stored and taken sufficiently, and the heat flow is stable.
Drawings
Fig. 1 is a schematic pipeline diagram of a phase change heat storage type heating system according to a first embodiment of the present invention;
fig. 2 is a schematic pipeline diagram of a phase change heat storage type heating system according to a second embodiment of the present invention;
fig. 3 is a schematic view of a pipeline of a phase change heat storage type heating system according to a third embodiment of the present invention.
The reference numbers in the figures denote:
1. a compressor; 2. a first heat exchanger; 3. a throttling device; 4. a second heat exchanger; 5. a water circulating pump; 6. a first shut-off valve; 6 ', a first shut-off valve'; 6 ", first shut-off valve"; 7. a second stop valve; 8. a heat accumulator; 9. a three-way valve (or called a mixing valve); 10. a third stop valve; 12. a fourth stop valve; 13. a fifth stop valve; 14. and a sixth stop valve.
100. A refrigerant circulation circuit; 200. a water circulation loop; 201. part of pipelines; 301. a first water line; 302. a second water line; 303. a cold water inlet; 304. a hot water outlet; 300. a third water line; 401. a first branch; 402. a second branch circuit; 403. a third branch; 404. and a fourth branch.
Detailed Description
As shown in fig. 1-3, the utility model provides a phase change heat accumulation formula heating system, it includes:
a refrigerant circulation circuit 100 and a water circulation circuit 200, wherein the refrigerant circulation circuit 100 is provided with a compressor 1, a first heat exchanger 2, a throttling device 3 and a second heat exchanger 4, the water circulation circuit 200 is provided with a heat accumulator 8 and a second heat exchanger 4, and the refrigerant circulation circuit 100 and the water circulation circuit 200 exchange heat at the second heat exchanger 4; and the first end of the partial pipeline 201 where the heat accumulator 8 is located is also communicated to a cold water inlet 303 through a first water pipeline 301, and the second end of the partial pipeline 201 where the heat accumulator 8 is located is also communicated to a hot water outlet 304 through a second water pipeline 302.
The utility model discloses a refrigerant circulation loop and water circulation loop and the two through the setting form of second heat exchanger looks heat transfer, and the heat accumulator sets up in water circulation loop, can separate phase change heat accumulation water heater's refrigerant system and water system each other effectively, can improve the charge-discharge efficiency of heat accumulator effectively, improve the system efficiency, and can also prevent effectively that the refrigerant from revealing the contaminated water system; the heat accumulator is provided with only one inlet pipe and one outlet pipe, and the heat charging process and the heat releasing process share one set of pipeline system, so that the heat exchange area of the heat exchanger can be fully utilized, the heat exchange efficiency in the heat charging and discharging process can be further improved, and the system energy efficiency can be improved; the first end of the partial pipeline where the heat accumulator is located is communicated to the cold water inlet, the second end of the partial pipeline is communicated to the hot water outlet, water can be supplied to a user through the heat accumulator for heating, meanwhile, the water can be directly supplied to the user through the heat pump for heating, when the heat is not stored in the heat accumulator enough and heat is needed, the air source heat pump can be selected to directly heat cold water for the user, the heat can be supplied by combining two modes of heat extraction of the heat accumulator and direct heating of cold water by the heat pump, and heat storage and heat supply of the user can be.
The heat accumulator of the utility model only has the pipeline of the water system to pass through, the heat storage material is charged with heat and discharged with heat exchange with water, the heat exchange area of the pipeline is fully utilized, and if the aging water of the pipeline leaks in the heat accumulator, no safety problem is caused; the water heater system is divided into a heat pump system and a water system which are connected by an intermediate heat exchanger, any fluid in the system is leaked without mutual influence, and the maintenance is easy.
Preferably, the first and second electrodes are formed of a metal,
the water valve further includes a third water line 300, one end of the third water line 300 is connected to the second water line 302 through a three-way valve 9, the other end of the third water line 300 is connected to the first water line 301, and the three-way valve 9 can connect at least two of the three connected ends (as shown in fig. 1 to 3, the valve may have two left and right ends connected, or may have three left and right ends connected). The cold water with lower temperature can be effectively supplemented to the hot water outlet through the arrangement form of the third water pipeline, so that the cold water is mixed with the hot water heated by the heat accumulator and/or the heat pump second heat exchanger, and the water temperature of the hot water outlet is effectively adjusted.
Preferably, the first and second electrodes are formed of a metal,
a second stop valve 7 is further arranged on the partial pipeline 201 where the heat accumulator 8 is located, and/or a third stop valve 10 is further arranged on a pipe section of the water circulation loop 200 connected with the partial pipeline 201, and/or a circulating water pump 5 is further arranged on the water circulation loop 200. The arrangement of the second stop valve 7 can effectively control part of pipelines where the heat accumulator is located, the valve can be opened when heat is accumulated and released through the heat accumulator, the valve can be closed when the heat pump independently heats water, whether the second heat exchanger of the heat pump is connected or not can be controlled through the third stop valve, namely, the valve can be opened when heat is accumulated, the heat pump independently heats water, and the heat pump and the heat accumulator simultaneously heat water, and the valve is closed when the heat accumulator independently heats water; the water in the water circulation loop can be effectively driven to flow by the circulating water pump, particularly when the heat storage process is carried out.
The preferred embodiment of the process of example 1,
as shown in fig. 1, a first branch 401 is further provided in parallel to the circulating water pump 5, and a first shutoff valve 6 is provided in the first branch. This is the utility model discloses an embodiment 1's preferred structural style can effectual realization heat pump second heat exchanger 4 and heat accumulator parallel connection's form, realizes connecting in parallel of second heat exchanger and heat accumulator when the heat pump heats and heat accumulator joint heating mode, gives the effect that the user water carried out the heat supply simultaneously. Fig. 1 is a first embodiment of the phase change thermal storage water heater provided by the present invention. The system comprises a heat pump heating loop and a water system heat storage and release loop. The heat pump heating loop consists of a compressor 1, a first heat exchanger 2, a throttling device 3, a second heat exchanger 4 and an auxiliary pipeline system; the water system heat accumulation loop is composed of a heat accumulator 8, a second heat exchanger 4, a circulating water pump 5, a first stop valve 6, a second stop valve 7, a three-way valve 9, a third stop valve 10 and an auxiliary pipeline system.
The utility model discloses in can adopt finned tube heat exchanger, spiral coil heat exchanger, coiled pipe heat exchanger and other forms heat exchangers as the heat accumulator of heat exchanger, the intraductal water that walks, the outside encapsulation of tubes is phase change material or compound phase change material that the phase transition temperature scope is 40-60 ℃.
The heat exchanger pipeline of the heat accumulator of the utility model adopts the Z-shaped flow path, which can effectively reduce the influence of reheating in the heat charging and discharging process and improve the heat transfer efficiency; the water flow direction adopts the mode of going from top to bottom in the heat accumulation process heat accumulator, and the water flow direction adopts the mode of going from bottom to top in the heat release process heat accumulator, is favorable to reducing the heat transfer difference in temperature, fully accesses the latent heat of heat accumulation material, improves heat transfer efficiency.
In a preferred embodiment of the process of embodiment 2,
as shown in fig. 2, the regenerator further includes a second branch 402, one end of the second branch 402 is connected to a position between the regenerator 8 and the second stop valve 7, and the other end of the second branch 402 is connected to a position between one end of the second heat exchanger 4 and the third stop valve 10, and a first stop valve '6' is further provided in the second branch 402. This is the utility model discloses an embodiment 2's preferred structural style can effectual realization heat pump second heat exchanger 4 and heat accumulator series connection's form, realizes the series connection of second heat exchanger and heat accumulator when the heat pump heats and heat accumulator combined heat supply mode, and second heat exchanger is located low temperature end, heat accumulator and is located the high temperature end, gives the user water simultaneously and carries out the effect of heat supply.
Fig. 2 shows the phase change thermal storage water heater according to embodiment 2 of the present invention. The system comprises a heat pump heating loop and a water system heat storage and release loop. The heat pump heating loop consists of a compressor 1, a first heat exchanger 2, a throttling device 3, a second heat exchanger 4 and an auxiliary pipeline system; the water system heat accumulation loop consists of a heat accumulator 8, a second heat exchanger 4, a circulating water pump 5, a first stop valve '6', a second stop valve 7, a three-way valve 9, a third stop valve 10, a fourth stop valve 12, a fifth stop valve 13, a sixth stop valve 14 and an auxiliary pipeline system.
The working process of the embodiment 2 is basically the same as that of the embodiment 1, except that in the heat pump heating and heat accumulator combined heating mode of the embodiment 1, the heat pump heating branch and the heat accumulator heating branch are connected in parallel, and the heat pump heating and the heat accumulator heating of the embodiment 2 are connected in series on one branch.
The series combined heat supply is selected according to the phase change temperature of the heat storage material, the heat accumulator 8 is used as a high-temperature stage when the phase change temperature is higher, and the heat pump heat exchanger heats water at a low-temperature stage at the moment, so that the heating speed is high, the heating energy is sufficient, and the hot water temperature required by a user can be reached in a short time; on the contrary, as the low-temperature stage, the heat pump is low in consumed electric quantity because of heating water at the high-temperature stage, and the heating energy efficiency of the heat pump is high. And evaluating a scheme with better comprehensive energy efficiency according to the heat release power of the heat accumulator and the heating power ratio (more than 1) of the heat pump. The series combined hot water supply is heated in a cascade manner, which is beneficial to improving the comprehensive energy efficiency of the system. When the thermal storage 8 is at a high temperature level, the system can be modified to the phase change thermal storage water heater embodiment 2 shown in fig. 2.
In a preferred embodiment 3 of the present invention,
as shown in fig. 3, a third branch 403 is further included, one end of the third branch 403 is connected to a position between the second end of the partial pipe 201 and the third stop valve 10, the other end is connected to a position between the third end of the second heat exchanger 4 and the first end of the partial pipe 201, and a first stop valve "6" is further provided on the third branch 403. This is the utility model discloses an embodiment 3's preferred structural style can effectual realization heat pump second heat exchanger 4 and heat accumulator series connection's form, realizes the series connection of second heat exchanger and heat accumulator when the heat pump heats and heat accumulator combined heat supply mode, and second heat exchanger is located high temperature end, heat accumulator and is located the low temperature end, carries out the effect of heat supply for the user's water simultaneously, and it is high to fill the heat efficiency this moment.
Fig. 3 is embodiment 3 of the phase change thermal storage water heater provided by the present invention. The system comprises a heat pump heating loop and a water system heat storage and release loop. The heat pump heating loop consists of a compressor 1, a first heat exchanger 2, a throttling device 3, a second heat exchanger 4 and an auxiliary pipeline system; the water system heat accumulation loop consists of a heat accumulator 8, a second heat exchanger 4, a circulating water pump 5, a first stop valve 6, a second stop valve 7, a three-way valve 9, a third stop valve 10, a fourth stop valve 12, a fifth stop valve 13, a sixth stop valve 14 and an auxiliary pipeline system.
The working process of the embodiment 3 is basically the same as that of the embodiment 1, except that in the heat pump heating and heat accumulator combined heating mode of the embodiment 1, the heat pump heating branch and the heat accumulator heating branch are connected in parallel, and the heat pump heating and the heat accumulator heating of the embodiment 3 are connected in series on one branch.
The series combined heat supply is selected according to the phase change temperature of the heat storage material, the heat accumulator 8 is used as a high-temperature stage when the phase change temperature is higher, and the heat pump heat exchanger heats water at a low-temperature stage at the moment, so that the heating speed is high, the heating energy is sufficient, and the hot water temperature required by a user can be reached in a short time; on the contrary, as the low-temperature stage, the heat pump is low in consumed electric quantity because of heating water at the high-temperature stage, and the heating energy efficiency of the heat pump is high. And evaluating a scheme with better comprehensive energy efficiency according to the heat release power of the heat accumulator and the heating power ratio (more than 1) of the heat pump. The series combined hot water supply is heated in a cascade manner, which is beneficial to improving the comprehensive energy efficiency of the system. When the thermal storage 8 is at a low temperature level, the system can be modified to the phase change thermal storage water heater embodiment 3 shown in fig. 3.
Preferably, the first and second electrodes are formed of a metal,
a fourth branch 404 is further included, one end of the fourth branch 404 is connected to a position between the fourth end of the second heat exchanger 4 and the third stop valve 10, the other end of the fourth branch 404 is connected to the second water pipe 302, a fourth stop valve 12 is further disposed on the fourth branch 404, and a fifth stop valve 13 is further disposed between the other end of the fourth branch 404 and the second end of the partial pipe 201.
Preferably, the first and second electrodes are formed of a metal,
a sixth stop valve 14 is also provided between the first end of the partial pipe 201 where the regenerator 8 is located and the third end of the second heat exchanger 4.
Preferably, the first and second electrodes are formed of a metal,
the heat exchange pipeline in the heat accumulator 8 is a Z-shaped flow path, and/or the heat accumulator 8 is arranged in a mode of going in and out from top to bottom, and water flows in and out from top to bottom when the heat accumulator 8 accumulates heat and flows in and out from bottom when releasing heat. The heat exchanger pipeline of the heat accumulator of the utility model adopts the Z-shaped flow path, which can effectively reduce the influence of reheating in the heat charging and discharging process and improve the heat transfer efficiency; the water flow direction adopts the mode of going from top to bottom in the heat accumulation process heat accumulator, and the water flow direction adopts the mode of going from bottom to top in the heat release process heat accumulator, is favorable to reducing the heat transfer difference in temperature, fully accesses the latent heat of heat accumulation material, improves heat transfer efficiency.
The utility model also provides a phase transition heat accumulation formula heating system's control method, it uses arbitrary preceding the phase transition heat accumulation formula heating system, to heat accumulator heat accumulation operation, the independent heat supply of heat accumulator, heat pump independently prepare hot water and heat pump heat and heat accumulator joint heating mode control and switching control.
The utility model discloses a refrigerant circulation loop and water circulation loop and the two through the setting form of second heat exchanger looks heat transfer, and the heat accumulator sets up in water circulation loop, can separate phase change heat accumulation water heater's refrigerant system and water system each other effectively, can improve the charge-discharge efficiency of heat accumulator effectively, improve the system efficiency, and can also prevent effectively that the refrigerant from revealing the contaminated water system; the heat accumulator is provided with only one inlet pipe and one outlet pipe, and the heat charging process and the heat releasing process share one set of pipeline system, so that the heat exchange area of the heat exchanger can be fully utilized, the heat exchange efficiency in the heat charging and discharging process can be further improved, and the system energy efficiency can be improved; the first end of the partial pipeline where the heat accumulator is located is communicated to the cold water inlet, the second end of the partial pipeline is communicated to the hot water outlet, water can be supplied to a user through the heat accumulator for heating, meanwhile, the water can be directly supplied to the user through the heat pump for heating, when the heat is not stored in the heat accumulator enough and heat is needed, the air source heat pump can be selected to directly heat cold water for the user, the heat can be supplied by combining two modes of heat extraction of the heat accumulator and direct heating of cold water by the heat pump, and heat storage and heat supply of the user can be.
The heat accumulator of the utility model only has the pipeline of the water system to pass through, the heat storage material is charged with heat and discharged with heat exchange with water, the heat exchange area of the pipeline is fully utilized, and if the aging water of the pipeline leaks in the heat accumulator, no safety problem is caused; the water heater system is divided into a heat pump system and a water system which are connected by an intermediate heat exchanger, any fluid in the system is leaked without mutual influence, and the maintenance is easy.
when the first cut-off valve 6, the second cut-off valve 7, the third cut-off valve 10, and the three-way valve 9 are included at the same time:
when the heat storage mode needs to be executed, the second stop valve 7 and the third stop valve 10 are controlled to be opened, and the first stop valve 6 and the three-way valve 9 are controlled to be closed;
when the heat accumulator independent heating mode needs to be executed, the second stop valve 7 and the three-way valve 9 are controlled to be opened, the second water pipeline 302 is controlled to be communicated with the hot water outlet 304, and the first stop valve 6 and the third stop valve 10 are controlled to be closed;
when a heat pump heating and heat accumulator combined heating mode needs to be executed, the first stop valve 6, the second stop valve 7, the third stop valve 10 and the three-way valve 9 are controlled to be opened, and the second water pipeline 302 is controlled to be communicated with the hot water outlet 304;
when the heat pump independent heating mode needs to be executed, the first stop valve 6, the third stop valve 10 and the three-way valve 9 are controlled to be opened, the second water pipeline 302 is controlled to be communicated with the hot water outlet 304, and the second stop valve 7 is controlled to be closed.
This is the utility model discloses the difference control mode of the multimode of embodiment 1 can realize four kinds of modes and switching each other, can provide more superior condition for user's heat supply water, avoids the not enough condition of heat supply to take place. For further explanation of the present invention, reference will now be made in detail to the accompanying drawings.
There are four different operating modes to choose from depending on the heat requirements and the environment of use.
1) Heat storage mode of heat accumulator
This mode is suitable for situations where the user has no demand for heat, at which time the heat pump system heats and stores heat in the heat accumulator.
In this mode the heat pump system is operated, the throttle 3 is opened and the refrigerant flow is controlled according to the logic, the second and third cut-off valves 7, 10 are opened and the first and third cut-off valves 6, 9 are closed. Refrigerant gas discharged from the compressor 1 enters the second heat exchanger 4, cold water from the heat accumulator 8 is heated in the second heat exchanger, the refrigerant is cooled and condensed and then enters the throttling device 3, the refrigerant is throttled and depressurized and then enters the first heat exchanger 2 to absorb heat in air for evaporation, and the refrigerant enters a compressor cylinder from a compressor air suction port to complete the circulation of a refrigerant circuit; for the water path system, the water heated in the second heat exchanger 4 enters the heat accumulator 8 through the third stop valve 10 under the driving of the circulating water pump 5, the heat accumulation material packaged by the heat accumulator 8 is heated, and the water after heat exchange with the heat accumulation material enters the second heat exchanger 4 again to be heated, so that a heat accumulation loop of the water system is completed. After multiple times of circulating heat charging, the phase change process of the heat storage material in the heat accumulator 8 is completed, the temperature rises to a set value, and the whole heat storage process is completed.
2) Independent heat supply mode of heat accumulator
The mode is suitable for the condition that the heat in the heat accumulator is enough for users or the heat pump system cannot heat, at the moment, the heat pump system is closed, and all the heat used by the users is provided by the heat accumulator.
In this mode, the heat pump system does not operate, and cold water flows through the heat accumulator 8 to exchange heat with the heat storage material, and is used for heat supply after being heated up. At this time, the second cut-off valve 7 and the three-way valve 9 are opened, and the first cut-off valve 6 and the third cut-off valve 10 are closed. Part of cold water flowing from the cold water inlet end enters the heat accumulator 8 through the second stop valve 7, absorbs heat in a heat storage material packaged on the outer side of the heat accumulator 8, heats up, is mixed with cold water directly flowing into the three-way valve 9 in proportion, and is used by a user after reaching the required temperature.
3) Heat pump heating and heat accumulator combined heating mode
The mode is suitable for the condition that the heat in the heat accumulator can not meet the requirement of a user, and the heat used by the user is provided by the heat pump system for heating and the heat stored in the heat accumulator.
The heat pump system is operated and the throttle 3 is opened and the refrigerant flow is controlled according to logic. Refrigerant gas discharged from the compressor 1 enters the second heat exchanger 4 to exchange heat with cold water flowing through the second heat exchanger 4, the refrigerant enters the throttling device 3 after being cooled and condensed, enters the first heat exchanger 2 after being throttled and depressurized therein to absorb heat in air for evaporation, and enters a compressor cylinder from a compressor air suction port to complete the circulation of a refrigerant loop; for the water channel system, the first stop valve 6, the second stop valve 7, the third stop valve 10 and the three-way valve 9 are all opened, the three water channels are connected in parallel, cold inlet water of the first branch enters the second heat exchanger 4 after flowing through the first stop valve 6, and flows through the third stop valve 10 to flow to the three-way valve 9 after exchanging heat with the refrigerant and increasing the temperature; cold inlet water flow of the second branch enters a heat accumulator 8 through a second stop valve 7, exchanges heat with a heat storage material through the heat accumulator 8, and flows out of the heat accumulator 8 after being heated to flow to a three-way valve 9; the cold inlet water of the third branch directly flows to the three-way valve 9, and is mixed with the water of the first two branches according to a certain proportion, and the cold inlet water is used by a user after reaching the required temperature.
4) Heat pump independent heating mode
This mode is suitable for situations where there is no heat storage in the heat accumulator when the user is using it, or where the user has a low demand for heat and the demand time is short, where the heat used by the user is provided entirely by the heat pump system.
In this mode the heat pump system is operated and the throttle 3 is opened and the refrigerant flow is controlled according to logic. Refrigerant gas discharged from the compressor 1 enters the second heat exchanger 4 to exchange heat with cold water flowing through the second heat exchanger 4, the refrigerant enters the throttling device 3 after being cooled and condensed, enters the first heat exchanger 2 after being throttled and depressurized therein to absorb heat in air for evaporation, and enters a compressor cylinder from a compressor air suction port to complete the circulation of a refrigerant loop; in the case of the waterway system, the first stop valve 6, the third stop valve 10, and the three-way valve 9 are opened, and the second stop valve 7 is closed. Part of cold inlet water flows into the second heat exchanger 4 for heat exchange and temperature rise after passing through the first stop valve 6, then flows through the third stop valve 10 and is mixed with the other part of cold inlet water directly flowing into the three-way valve 9 according to a certain proportion, and the cold inlet water is used by a user after reaching the required temperature.
when the first cut-off valve '6', the second cut-off valve 7, the third cut-off valve 10, and the three-way valve 9 are included at the same time:
when the heat accumulation mode needs to be executed, the second stop valve 7 and the third stop valve 10 are controlled to be opened, and the first stop valve '6' and the three-way valve 9 are controlled to be closed;
when the heat accumulator independent heating mode needs to be executed, the second stop valve 7 and the three-way valve 9 are controlled to be opened, the second water pipeline 302 is controlled to be communicated with the hot water outlet 304, and the first stop valve '6' and the third stop valve 10 are controlled to be closed;
when a heat pump heating and heat accumulator combined heating mode needs to be executed, controlling the first stop valve '6' and the three-way valve 9 to be opened, controlling the second water pipeline 302 to be communicated with the hot water outlet 304, and controlling the second stop valve 7 and the third stop valve 10 to be closed;
when the heat pump independent heating mode needs to be executed, the third stop valve 10 and the three-way valve 9 are controlled to be opened, the second water pipeline 302 is controlled to be communicated with the hot water outlet 304, and the first stop valve '6' and the second stop valve 7 are controlled to be closed.
This is the utility model discloses the difference control form of multiple mode of embodiment 2 can realize four kinds of modes and switching each other, can provide more superior condition for user's heat supply water, avoids the not enough condition of heat supply to take place, and the heat accumulator is located the high temperature level and can be applicable to the higher heat accumulation material of phase transition temperature, and the heat pump heat exchanger heats the water of low temperature level this moment, and rate of heating is fast, heating energy is sufficient, can reach the required hot water temperature of user in short time. For further explanation of the present invention, reference will now be made in detail to the accompanying drawings.
When the thermal accumulator 8 is used as a high temperature stage, the system can be adjusted to the second phase change thermal storage water heater embodiment shown in fig. 2, and the following description is made in detail with reference to the accompanying drawings.
There are four different operating modes to choose from depending on the heat requirements and the environment of use.
1) Heat storage mode of heat accumulator
The mode is suitable for the time period when the user does not need heat, and the heat pump system heats and stores the heat in the heat accumulator.
In this mode the heat pump system is operated and the throttle 3 is opened and the refrigerant flow is controlled according to logic. Refrigerant gas discharged from the compressor 1 enters the second heat exchanger 4, cold water from the heat accumulator is heated in the second heat exchanger, the refrigerant enters the throttling device 3 after being cooled and condensed, the refrigerant enters the first heat exchanger 2 after being throttled and depressurized to absorb heat in air for evaporation, and the refrigerant enters a compressor cylinder from a compressor air suction port to complete the circulation of a refrigerant loop; and for the waterway system, the second cut-off valve 7 and the third cut-off valve 10 are opened, and the first cut-off valve '6' and the three-way valve 9 are closed. The water heated in the second heat exchanger 4 enters the heat accumulator 8 through the third stop valve 10 under the driving of the circulating water pump 5, the heat storage material packaged in the heat accumulator 8 is heated, and the water after heat exchange with the heat storage material enters the second heat exchanger 4 again to be heated, so that a heat storage loop of the water system is completed. After multiple times of circulating heat charging, the phase change process of the heat storage material in the heat accumulator 8 is completed, the temperature rises to a set value, and the whole heat storage process is completed.
2) Independent heat supply mode of heat accumulator
The mode is suitable for the condition that the heat in the heat accumulator is enough for users or the heat pump system cannot heat, at the moment, the heat pump system is closed, and all the heat used by the users is provided by the heat accumulator.
In this mode, the heat pump system does not operate, and cold water flows through the heat accumulator 8 to exchange heat with the heat storage material, and is used for heat supply after being heated up. At this time, the second cut-off valve 7 and the three-way valve 9 are opened, and the first cut-off valve '6' and the third cut-off valve 10 are closed. The cold water flowing from the cold water inlet end enters the heat accumulator 8, absorbs the heat in the heat storage material packaged at the outer side of the heat accumulator 8, is heated and is mixed with the cold water directly flowing into the three-way valve 9 in proportion, and the cold water reaches the required temperature for users to use.
3) Heat pump heating and heat accumulator combined heating mode
The mode is suitable for the condition that the heat in the heat accumulator can not meet the requirement of a user, and the heat used by the user is provided by the heat pump system for heating and the heat stored in the heat accumulator.
In this mode heat is provided by both the heat pump system heating and the stored heat in the regenerator. The heat pump system is operated and the throttle 3 is opened and the refrigerant flow is controlled according to logic. Refrigerant gas discharged from the compressor 1 enters the second heat exchanger 4 to exchange heat with cold water flowing through the second heat exchanger 4, the refrigerant enters the throttling device 3 after being cooled and condensed, enters the first heat exchanger 2 after being throttled and depressurized therein to absorb heat in air for evaporation, and enters a compressor cylinder from a compressor air suction port to complete the circulation of a refrigerant loop; and for the waterway system, the first cut-off valve '6' and the three-way valve 9 are opened, and the second cut-off valve 7 and the third cut-off valve 10 are closed. After part of cold inlet water flows into the second heat exchanger 4 to be heated, the cold inlet water flows into the high-temperature-level heat accumulator 8 through the first stop valve 6, is heated again through heat exchange of the heat accumulator 8 and a heat storage material in the heat accumulator 8 and flows to the three-way valve 9, and is mixed with the cold inlet water directly flowing into the three-way valve 9 in a certain proportion to reach the required temperature, and then the cold inlet water is used by a user.
4) Heat pump independent heating mode
The mode is suitable for the condition that when the heat accumulator is used by a user, the heat accumulator has no heat storage or the user has small demand for heat and short demand time, and the heat used by the user is provided by the heat pump system.
In this mode the heat pump system is operated and the throttle 3 is opened and the refrigerant flow is controlled according to logic. Refrigerant gas discharged from the compressor 1 enters the first heat exchanger 2 to exchange heat with cold water flowing through the second heat exchanger 4, the refrigerant enters the throttling device 3 after being cooled and condensed, enters the first heat exchanger 2 after being throttled and depressurized therein to absorb heat in air for evaporation, and enters a compressor cylinder from a compressor air suction port to complete the circulation of a refrigerant loop; and for the waterway system, the third cut-off valve 10 and the three-way valve 9 are opened, and the first cut-off valve '6' and the second cut-off valve 7 are closed. After part of cold inlet water flows into the second heat exchanger 4 to exchange heat with the refrigerant and rise the temperature, the cold inlet water flows through the third stop valve 10 to flow to the three-way valve 9 and is mixed with the other part of cold inlet water directly flowing into the three-way valve 9 according to a certain proportion, and the cold inlet water is used by a user after reaching the required temperature.
when the first cut valve "6", the second cut valve 7, the third cut valve 10, the fourth cut valve 12, the fifth cut valve 13, the sixth cut valve 14, and the three-way valve 9 are included at the same time:
when the heat accumulation mode needs to be executed, the second stop valve 7, the third stop valve 10 and the sixth stop valve 14 are controlled to be opened, and the first stop valve 6, the fourth stop valve 12, the fifth stop valve 13 and the three-way valve 9 are controlled to be closed;
when the heat accumulator independent heating mode needs to be executed, the second stop valve 7, the fifth stop valve 13 and the three-way valve 9 are controlled to be opened, the second water pipeline 302 is controlled to be communicated with the hot water outlet 304, and the first stop valve '6', the third stop valve 10, the fourth stop valve 12 and the sixth stop valve 14 are controlled to be closed;
when a heat pump heating and heat accumulator combined heating mode needs to be executed, controlling the first stop valve '6', the second stop valve 7, the fourth stop valve 12 and the three-way valve 9 to be opened, controlling the second water pipeline 302 to be communicated with the hot water outlet 304, and controlling the third stop valve 10, the fifth stop valve 13 and the sixth stop valve 14 to be closed;
when the heat pump independent heating mode needs to be executed, the fourth stop valve 12, the sixth stop valve 14 and the three-way valve 9 are all controlled to be opened, the second water pipeline 302 is controlled to be communicated with the hot water outlet 304, and the first stop valve 6, the second stop valve 7, the third stop valve 10 and the fifth stop valve 13 are all controlled to be closed.
This is the utility model discloses the difference control mode of the multimode of embodiment 3 can realize four kinds of modes and switching each other, can provide more superior condition for user's heat supply water, avoids the not enough condition of heat supply to take place, and the heat accumulator is located low temperature level and can be applicable to the lower heat storage material of instant temperature, and the heat pump is because the water of heating high temperature level, the electric quantity of its consumption is little this moment, and the efficiency of heat pump heating is high. For further explanation of the present invention, reference will now be made in detail to the accompanying drawings.
When the thermal accumulator 8 is at a low temperature level, the system can be adjusted to the third embodiment of the phase change thermal storage water heater shown in fig. 3, which will be described in detail below with reference to the accompanying drawings.
There are four different operating modes to choose from depending on the heat requirements and the environment of use.
1) Heat storage mode of heat accumulator
The mode is suitable for the time period when the user does not need heat, and the heat pump system heats and stores the heat in the heat accumulator.
In this mode the heat pump system is operated and the throttle 3 is opened and the refrigerant flow is controlled according to logic. Refrigerant gas discharged from the compressor 1 enters the second heat exchanger 4, cold water from the heat accumulator is heated in the second heat exchanger, the refrigerant enters the throttling device 3 after being cooled and condensed, the refrigerant enters the first heat exchanger 2 after being throttled and depressurized to absorb heat in air for evaporation, and the refrigerant enters a compressor cylinder from a compressor air suction port to complete the circulation of a refrigerant loop; and for the waterway system, the second cut-off valve 7, the third cut-off valve 10 and the sixth cut-off valve 14 are opened, and the first cut-off valve "6", the fourth cut-off valve 12, the fifth cut-off valve 13 and the three-way valve 9 are closed. The water heated in the second heat exchanger 4 enters the heat accumulator 8 through the third stop valve 10 under the driving of the circulating water pump 5, heats the heat storage material packaged in the heat accumulator 8, and the water after heat exchange with the heat storage material flows through the second stop valve 7 and the sixth stop valve 14 and reenters the second heat exchanger 4 to be heated, thereby completing the heat storage loop of the water system. After multiple times of circulating heat charging, the phase change process of the heat storage material in the heat accumulator 8 is completed, the temperature rises to a set value, and the whole heat storage process is completed.
2) Independent heat supply mode of heat accumulator
The mode is suitable for the condition that the heat in the heat accumulator is enough for users or the heat pump system cannot heat, at the moment, the heat pump system is closed, and all the heat used by the users is provided by the heat accumulator.
In the mode, the heat pump system does not operate, cold water flows through the heat accumulator to exchange heat with the heat storage material, and the cold water is used for heat supply after being heated. At this time, the second cut-off valve 7, the fifth cut-off valve 13, and the three-way valve 9 are opened, and the first cut-off valve "6", the third cut-off valve 10, the fourth cut-off valve 12, and the sixth cut-off valve 14 are all closed. The cold water flowing from the cold water inlet end enters the heat accumulator 8, absorbs the heat in the heat storage material packaged at the outer side of the heat accumulator 8, is heated and is mixed with the cold water directly flowing into the three-way valve 9 in proportion, and the cold water reaches the required temperature for users to use.
3) Heat pump heating and heat accumulator combined heating mode
The mode is suitable for the condition that the heat in the heat accumulator can not meet the requirement of a user, and the heat used by the user is provided by the heat pump system for heating and the heat stored in the heat accumulator.
In this mode heat is provided by both the heat pump system heating and the stored heat in the regenerator. The heat pump system is operated and the throttle 3 is opened and the refrigerant flow is controlled according to logic. Refrigerant gas discharged from the compressor 1 enters the second heat exchanger 4 to exchange heat with cold water flowing through the second heat exchanger 4, the refrigerant enters the throttling device 3 after being cooled and condensed, enters the first heat exchanger 2 after being throttled and depressurized therein to absorb heat in air for evaporation, and enters a compressor cylinder from a compressor air suction port to complete the circulation of a refrigerant loop; for the waterway system, the first stop valve 6, the second stop valve 7, the fourth stop valve 12 and the three-way valve 9 are opened, the third stop valve 10, the fifth stop valve 13 and the sixth stop valve 14 are all closed, part of cold inlet water flows into the low-temperature-level heat accumulator 8 through the second stop valve 7, exchanges heat with a heat accumulation material through the heat accumulator 8 to heat up, flows into the second heat exchanger 4 serving as a high-temperature level through the first stop valve 6 to heat up again, flows to the three-way valve 9 after flowing through the fourth stop valve 12, is mixed with the other part of cold inlet water directly flowing into the three-way valve 9 according to a certain proportion, and is used by a user after reaching a required temperature.
4) Heat pump independent heating mode
The mode is suitable for the condition that when the heat accumulator is used by a user, the heat accumulator has no heat storage or the user has small demand for heat and short demand time, and the heat used by the user is provided by the heat pump system.
In this mode the heat pump system is operated and the throttle 3 is opened and the refrigerant flow is controlled according to logic. Refrigerant gas discharged from the compressor 1 enters the first heat exchanger 2 to exchange heat with cold water flowing through the second heat exchanger 4, the refrigerant enters the throttling device 3 after being cooled and condensed, enters the first heat exchanger 2 after being throttled and depressurized therein to absorb heat in air for evaporation, and enters a compressor cylinder from a compressor air suction port to complete the circulation of a refrigerant loop; in the waterway system, the fourth cut-off valve 12, the sixth cut-off valve 14 and the three-way valve 9 are opened, and the first cut-off valve "6", the second cut-off valve 7, the third cut-off valve 10 and the fifth cut-off valve 13 are closed. After part of cold inlet water flows into the second heat exchanger 4 through the sixth stop valve 14 and is subjected to heat exchange with the refrigerant, the cold inlet water flows through the fourth stop valve 12 and then flows to the three-way valve 9, and the cold inlet water and the other part of cold inlet water which directly flows into the three-way valve 9 are mixed according to a certain proportion, and the cold inlet water is used by a user after reaching the required temperature.
Preferably, the first and second electrodes are formed of a metal,
when the third water line 300 is further included and the temperature of the hot water outlet 304 needs to be adjusted, the three-way valve 9 is controlled to be opened, and the third water line 300 and the second water line 302 are both controlled to communicate with the hot water outlet 304. Through the utility model discloses a control of three-way valve can make the third water pipeline can export with hot water to make in third water pipeline and the second water pipeline through the hot water of heating carry out the heat transfer, effectively realize carrying out the effect adjusted to the temperature of water.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a phase transition heat accumulation formula heating system which characterized in that: the method comprises the following steps:
the heat exchanger comprises a refrigerant circulation circuit (100) and a water circulation circuit (200), wherein a compressor (1), a first heat exchanger (2), a throttling device (3) and a second heat exchanger (4) are arranged on the refrigerant circulation circuit (100), a heat accumulator (8) and the second heat exchanger (4) are arranged on the water circulation circuit (200), and the refrigerant circulation circuit (100) and the water circulation circuit (200) exchange heat at the second heat exchanger (4); and the first end of the partial pipeline (201) where the heat accumulator (8) is located is also communicated to a cold water inlet (303) through a first water pipeline (301), and the second end of the partial pipeline (201) where the heat accumulator (8) is located is also communicated to a hot water outlet (304) through a second water pipeline (302).
2. The phase-change regenerative heating system according to claim 1, wherein:
the water purifier further comprises a third water pipeline (300), one end of the third water pipeline (300) is communicated to the second water pipeline (302) through a three-way valve (9), the other end of the third water pipeline (300) is communicated to the first water pipeline (301), and the three-way valve (9) can be used for communicating at least two of the three connected ends.
3. The phase-change regenerative heating system according to claim 1, wherein:
a second stop valve (7) is further arranged on the part of the pipeline (201) where the heat accumulator (8) is located, and/or a third stop valve (10) is further arranged on a pipe section, connected with the part of the pipeline (201), of the water circulation loop (200), and/or a water circulation pump (5) is further arranged on the water circulation loop (200).
4. The phase-change regenerative heating system according to claim 3, wherein:
the circulating water pump (5) is also provided with a first branch (401) in parallel, and the first branch is provided with a first stop valve (6).
5. The phase-change regenerative heating system according to claim 3, wherein:
and the heat exchanger further comprises a second branch (402), one end of the second branch (402) is connected to a position between the heat accumulator (8) and the second stop valve (7), the other end of the second branch is connected to a position between one end of the second heat exchanger (4) and the third stop valve (10), and a first stop valve '(6') is further arranged on the second branch (402).
6. The phase-change regenerative heating system according to claim 3, wherein:
and a third branch (403), one end of the third branch (403) is connected to a position between the second end of the partial pipeline (201) and the third stop valve (10), the other end is connected to a position between the third end of the second heat exchanger (4) and the first end of the partial pipeline (201), and a first stop valve (6') is arranged on the third branch (403).
7. The phase-change regenerative heating system according to claim 6, wherein:
the heat exchanger further comprises a fourth branch (404), one end of the fourth branch (404) is connected to a position between the fourth end of the second heat exchanger (4) and the third stop valve (10), the other end of the fourth branch is connected to the second water pipeline (302), a fourth stop valve (12) is further arranged on the fourth branch (404), and a fifth stop valve (13) is further arranged between the other end of the fourth branch (404) and the second end of the partial pipeline (201).
8. The phase-change regenerative heating system according to claim 7, wherein:
a sixth stop valve (14) is further arranged between the first end of the part of the pipeline (201) where the heat accumulator (8) is located and the third end of the second heat exchanger (4).
9. A phase change regenerative heating system according to any one of claims 1 to 8, wherein:
the heat exchange pipeline in the heat accumulator (8) is a Z-shaped flow path, and/or the heat accumulator (8) is arranged in a mode of going in and out from top to bottom, and water flows in and out from top to bottom when the heat accumulator (8) accumulates heat and flows in and out from bottom when releasing heat.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500777A (en) * | 2019-09-06 | 2019-11-26 | 珠海格力电器股份有限公司 | Phase-change heat accumulating type heating system and control method thereof |
| CN113091446A (en) * | 2021-03-24 | 2021-07-09 | 珠海保能绿色能源科技有限公司 | Dirty stoving line of heat accumulation formula fertilizer preparation excrement |
| CN114484932A (en) * | 2022-02-10 | 2022-05-13 | 珠海格力电器股份有限公司 | Heat pump system, control method and air conditioner |
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2019
- 2019-09-06 CN CN201921488586.5U patent/CN210425547U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500777A (en) * | 2019-09-06 | 2019-11-26 | 珠海格力电器股份有限公司 | Phase-change heat accumulating type heating system and control method thereof |
| CN113091446A (en) * | 2021-03-24 | 2021-07-09 | 珠海保能绿色能源科技有限公司 | Dirty stoving line of heat accumulation formula fertilizer preparation excrement |
| CN114484932A (en) * | 2022-02-10 | 2022-05-13 | 珠海格力电器股份有限公司 | Heat pump system, control method and air conditioner |
| CN114484932B (en) * | 2022-02-10 | 2023-01-06 | 珠海格力电器股份有限公司 | Heat pump system, control method and air conditioner |
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