CN217636189U - System for preparing domestic hot water by bath wastewater source assisted by circulating heating type ground source heat pump - Google Patents
System for preparing domestic hot water by bath wastewater source assisted by circulating heating type ground source heat pump Download PDFInfo
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- CN217636189U CN217636189U CN202123287805.3U CN202123287805U CN217636189U CN 217636189 U CN217636189 U CN 217636189U CN 202123287805 U CN202123287805 U CN 202123287805U CN 217636189 U CN217636189 U CN 217636189U
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Abstract
The utility model discloses a system for life hydrothermal is prepared to supplementary bathing waste water source of circulation heating formula earth source heat pump, including clear water inlet tube, heat exchanger, heat pump A, heat pump B, heat pump C, bathing waste water storage water tank, bathing waste water drain pipe and hot water storage water tank, clear water inlet tube parallel connection has hot water storage water tank and heat exchanger, bathing waste water storage water tank and bathing waste water inlet tube intercommunication. According to the structure, the utility model discloses a system for life hydrothermal is prepared to circulation heating formula ground source heat pump assisted bathing waste water source compares ordinary ground source heat pump system, and bathing waste water source temperature is showing to be higher than the ground source temperature, and waste water and clear water direct heat transfer in the heat exchanger make system's heating capacity, coefficient of performance homoenergetic improve about 50%.
Description
Technical Field
The utility model relates to a domestic water's technical field is prepared to waste water, concretely relates to circulation adds supplementary bathing waste water source of hot type ground source heat pump and prepares hot water's system of life.
Background
The applicant submits a patent with the application number of 201910362566.1 in the prior application, skillfully combines and utilizes a bathing wastewater source and a ground source, obtains bathing hot water by heating the bathing wastewater 1:1, and has good heating effect and lower energy consumption. However, in the actual use process, the normal operation can be realized in four seasons of spring, summer and autumn, but the use effect is relatively poor in winter. The research shows that the temperature rise required by heating the clear water to the hot water is higher than the temperature rise required by the rest three seasons because the temperature of the tap water in winter is lower than that of the tap water in the rest three seasons, and the temperature required by the bath hot water is also slightly higher than that of the bath hot water in the rest three seasons, so that the temperature of the final outlet water cannot meet the bath requirements. In addition, besides bathing in winter, other rigid requirements of domestic hot water exist, and the consumption of the domestic hot water exceeds the discharge amount of bathing wastewater.
The system of the patent is used for preparing domestic hot water through bathing wastewater, when the temperature of tap water is extremely low in severe cold winter, the heat in the bathing wastewater cannot meet the temperature rise requirement of the domestic hot water even if being recovered to the maximum extent, and auxiliary heating equipment is required for heating. For example, the electric auxiliary heating can seriously increase the overall operation energy consumption of the equipment, and an additional set of electric auxiliary heating equipment is required to be added for operation and maintenance, so that additional cost is increased; the common ground source heat pump system needs a large number of buried pipes during construction, and the buried pipes must keep enough distance, so the whole occupied area is large, the field condition is not easy to be satisfied, and in actual operation, because the ground source temperature is low, the system performance coefficient is not high, and the condition of ground source heat unbalance is easy to occur, so long-term operation cannot be ensured.
In addition, when the system disclosed by the patent is used for the first time, the bathing wastewater can be obtained after hot water is obtained through the auxiliary heating system for bathing, and then the system is operated.
Therefore, how to use the water heater without an auxiliary heating system under any working condition all the year round and how to prepare more hot water than bath wastewater in winter are technical problems which need to be solved urgently by the technical personnel in the field.
Disclosure of Invention
The utility model aims to provide a: the system overcomes the defects of the prior art, provides a system for preparing domestic hot water by a bathing wastewater source assisted by a circulating heating type ground source heat pump, has the advantages that compared with a common ground source heat pump system, the temperature of the bathing wastewater source is obviously higher than that of a ground source, and the wastewater and clean water directly exchange heat in a heat exchanger, so that the heating capacity and the performance coefficient of the system can be improved by about 50 percent; the two-stage heat pump system is adopted, so that waste heat in the waste water is recycled thoroughly, the clear water can be heated to the temperature required by bathing by only utilizing the heat energy in the waste water in most of the whole year, the buried pipe is utilized to absorb heat from the ground source only when the temperature of tap water is extremely low, the buried pipe is only used as an auxiliary heat source in winter, the consumption is low, the buried pipe does not work in most of the time, and the heat imbalance of the ground source cannot be caused; the heat exchange medium in the heat exchange medium liquid outlet pipe, the ground buried pipe and the heat exchange medium liquid inlet pipe which are communicated with the evaporator C of the heat pump C uses a medium added with an antifreeze, and the medium can not only prevent freezing in winter, but also reduce the temperature of a freezing point, so that the heat pump C can still normally operate at a lower temperature and obtain a better heat exchange effect when exchanging heat with soil; moreover, due to the totally-enclosed structure, the service life of the system is prolonged; the outstanding effect that the flow ratio of clear water to waste water is more than or equal to 1:1 can be obtained without other hot water equipment all the year round, and the bathing waste water can be used for preparing bathing hot water and all domestic hot water required by washing vegetables, washing hands and faces in kitchens and toilets; a first hot tub of water can be prepared by operating mode 3 without the need for additional auxiliary heating devices such as other electrical or air sources so that the entire system can operate.
The utility model adopts the technical proposal that:
the system for preparing domestic hot water from the bathing wastewater source assisted by the circulating heating type ground source heat pump comprises a clean water inlet pipe, a heat exchanger, a heat pump A, a heat pump B, a heat pump C, a bathing wastewater storage tank, a bathing wastewater drain pipe and a hot water storage tank, wherein the clean water inlet pipe is respectively connected with the hot water storage tank and the heat exchanger in parallel, the bathing wastewater storage tank is communicated with the bathing wastewater inlet pipe, the hot water storage tank is communicated with a water outlet pipe A, the bathing wastewater storage tank and the clean water inlet pipe are respectively connected with the heat exchanger for heat exchange, clean water subjected to heat exchange through the heat exchanger sequentially passes through a condenser A of the heat pump A and a condenser B of the heat pump B for heat exchange respectively and then is communicated with the hot water storage tank, the hot water subjected to heat exchange sequentially passes through an evaporator B of the heat pump B and an evaporator A of the heat pump A for heat exchange and then is communicated with the bathing wastewater drain pipe, and the hot water storage tank B returns to the hot water storage tank through the hot water inlet pipe C again after passing through the condenser C of the heat exchange.
The utility model discloses the further improvement is, parallelly connected intercommunication is connected with the hot-water tank inlet tube A who communicates with the hot water storage water tank and the heat transfer inlet tube A who communicates with the heat transfer end A of heat exchanger on the clear water inlet tube, the intercommunication is equipped with valve A on the hot-water tank inlet tube A, the intercommunication is equipped with valve B on the heat transfer inlet tube A.
The utility model discloses a further improvement is, heat exchanger and heat transfer are intake the heat transfer of end A intercommunication and are gone out water end A and intake end A intercommunication through heat transfer outlet pipe A and heat pump A's condenser A's condensation, condenser A's condensation is gone out water end A and is intake end B intercommunication through connecting pipe A and heat pump B's condenser B's condensation, condenser B's condensation is gone out water end B and is passed through hot-water tank inlet tube B intercommunication hot water storage water tank.
The utility model discloses further improve the scheme and be, bathing waste water storage water tank intercommunication is connected with the bathing waste water outlet pipe of end B intercommunication of intaking with the heat transfer of heat exchanger, the intercommunication is equipped with waste water pump A on the bathing waste water outlet pipe.
The utility model discloses a further improvement is, the heat exchanger is intake the heat transfer of end B intercommunication with the heat transfer and is gone out water end B and pass through heat transfer outlet pipe B and heat pump B's evaporimeter B's evaporation and intake end B intercommunication, evaporimeter B's evaporation is gone out water end B and is passed through connecting pipe B and heat pump A's evaporimeter A's evaporation and intake end A intercommunication, evaporimeter A's evaporation is gone out water end A and bathing waste water drain pipe intercommunication.
The utility model discloses a further improvement scheme is, the intercommunication is equipped with circulating pump A on the outlet pipe B.
The utility model discloses a further improvement is, heat pump C's evaporimeter C's evaporation goes out liquid end C and passes through the one end intercommunication of heat transfer medium drain pipe and buried pipe, the other end of buried pipe passes through heat transfer medium feed liquor pipe and evaporimeter C's evaporation feed liquor end C intercommunication.
The utility model discloses a further improvement scheme is, the intercommunication is equipped with circulating pump B on the heat transfer medium feed liquor pipe.
The beneficial effects of the utility model reside in that:
first, the utility model discloses a system for life hot water is prepared to supplementary bathing waste water source of circulation heating formula ground source heat pump compares ordinary ground source heat pump system, and bathing waste water source temperature is showing to be higher than the ground source temperature, and direct heat transfer in the heat exchanger of waste water and clear water makes system heating capacity, coefficient of performance homoenergetic improve about 50%.
Second, the utility model discloses a system for life hydrothermal is prepared to supplementary bathing waste water source of circulation heating formula ground source heat pump, two-stage heat pump system altogether for waste heat recovery is thorough in the waste water, only utilize the heat energy in the waste water just can heat the required temperature of bathing with the clear water throughout most of the year time, only just utilize the buried pipe to absorb heat from the ground source when running water temperature is low very much, only do the auxiliary heat source use in winter, the quantity is few, most of the time is out of work, can not lead to the thermal unbalance of ground source.
Thirdly, the utility model discloses a system for preparing domestic hot water from bathing waste water source assisted by circulating heating type ground source heat pump, the heat transfer medium in the heat transfer medium drain pipe, the buried pipe and the heat transfer medium inlet pipe communicated with the evaporator C of the heat pump C uses the medium added with the antifreeze, the medium can not only prevent frostbite in winter, but also can reduce the temperature of the freezing point, thereby can still normally operate at a lower temperature, and when exchanging heat with soil, obtain a better heat exchange effect; and due to the totally-enclosed structure, the service life of the system is prolonged.
Fourth, the utility model discloses a system for domestic hot water is prepared to supplementary bathing waste water source of circulation heating formula ground source heat pump need not other hot water equipment homoenergetic throughout the year and obtains the outstanding effect that clear water and waste water flow ratio are greater than or equal to 1:1, not only can prepare the bathing hot water and can also prepare all domestic hot water that kitchen, bathroom dish washing, wash hands, face need with the bathing waste water.
Fifth, the utility model discloses a system for life hydrothermal is prepared to supplementary bathing waste water source of circulation heating formula ground source heat pump can need not auxiliary heat equipment such as other electricity or air source through mode 3 and just can prepare first bucket hot water so that entire system can operate.
Drawings
Fig. 1 is a schematic diagram of the pipeline of the present invention.
Detailed Description
As shown in fig. 1, the system for preparing domestic hot water from a bathing wastewater source assisted by a circulating heating type ground source heat pump comprises a clean water inlet pipe 1, a heat exchanger 16, a heat pump a, a heat pump B, a heat pump C, a bathing wastewater storage tank 24, a bathing wastewater drain pipe 30 and a hot water storage tank 3, wherein the clean water inlet pipe 1 is respectively connected with the hot water storage tank 3 and the heat exchanger 16 in parallel, the bathing wastewater storage tank 24 is communicated with the bathing wastewater inlet pipe 23, the hot water storage tank 3 is communicated with a water outlet pipe A4, the bathing wastewater storage tank 24 and the clean water inlet pipe 1 are respectively connected with the heat exchanger 16 for heat exchange, clean water subjected to heat exchange by the heat exchanger 16 sequentially passes through a condenser a18 of the heat pump a and a condenser B20 of the heat pump B for heat exchange respectively and then is communicated with the hot water storage tank 3, bathing wastewater subjected to heat exchange sequentially passes through an evaporator B27 of the heat pump B and an evaporator a29 of the heat pump a and then is communicated with the bathing wastewater drain pipe 30, and a water outlet pipe B5 of the hot water storage tank 3 passes through a hot water inlet pipe C7 for heat exchange again.
The clean water inlet pipe 1 is connected with a hot water tank inlet pipe A2 communicated with the hot water tank 3 and a heat exchange inlet pipe A15 communicated with a heat exchange inlet end A of the heat exchanger 16 in a parallel communication mode, the hot water tank inlet pipe A2 is communicated with a valve A14, and the heat exchange inlet pipe A15 is communicated with a valve B22.
The heat exchanger 16 is communicated with a heat exchange water outlet end A communicated with a heat exchange water inlet end A through a heat exchange water outlet pipe A17 and is communicated with a condensation water inlet end A of a condenser A18 of the heat pump A, the condensation water outlet end A of the condenser A18 is communicated with a condensation water inlet end B of a condenser B20 of the heat pump B through a connecting pipe A19, and the condensation water outlet end B of the condenser B20 is communicated with the hot water storage tank 3 through a hot water tank inlet pipe B21.
The bathing wastewater storage tank 24 is connected with a bathing wastewater outlet pipe 25 communicated with a heat exchange water inlet end B of the heat exchanger 16, and the bathing wastewater outlet pipe 25 is communicated with a wastewater pump A31.
The heat exchanger 16 is communicated with a heat exchange water outlet end B communicated with the heat exchange water inlet end B through a heat exchange water outlet pipe B26 and is communicated with an evaporation water inlet end B of an evaporator B27 of the heat pump B, the evaporation water outlet end B of the evaporator B27 is communicated with an evaporation water inlet end A of an evaporator A29 of the heat pump A through a connecting pipe B28, and the evaporation water outlet end A of the evaporator A29 is communicated with a bathing wastewater drainage pipe 30.
And the water outlet pipe B5 is communicated with a circulating pump A12.
The evaporation liquid outlet end C of the evaporator C11 of the heat pump C is communicated with one end of the buried pipe 9 through a heat exchange medium liquid outlet pipe 8, and the other end of the buried pipe 9 is communicated with the evaporation liquid inlet end C of the evaporator C11 through a heat exchange medium liquid inlet pipe 10.
And a circulating pump B13 is communicated with the heat exchange medium liquid inlet pipe 10.
Example 1
When working in spring, summer and autumn, the working mode 1 is started: opening a valve B22, closing a valve A14, and starting the bathing waste heat step utilization heat pump; except for bath hot water, domestic hot water for washing vegetables, hands and faces is not needed in a kitchen and a toilet, and the flow ratio of the waste water to the clean water is 1:1, the temperature of hot water can reach more than 42 ℃ required by life.
Example 2
When working in winter, in order to ensure sufficient domestic hot water, the flow ratio of the waste water to the clear water is 1.0 to 1.4:1, when the temperature of hot water outlet is lower than 42 ℃, starting the working mode 2: hot water in the hot water storage tank 3 is conveyed to a condenser C6 of the heat pump C for heat exchange and then returns to the hot water storage tank 3 through a hot water inlet pipe C7, and the operation is repeated to circularly heat water in the hot water storage tank 3 to more than 42 ℃ required by life; the evaporation liquid outlet end C of the evaporator C11 of the heat pump C is communicated with one end of the buried pipe 9 through the heat exchange medium liquid outlet pipe 8, the other end of the buried pipe 9 is communicated with the evaporation liquid inlet end C of the evaporator C11 through the heat exchange medium liquid inlet pipe 10, and therefore after the temperature of the heat exchange medium can be raised through heat exchange between the buried pipe 9 and the ground heat, the heat exchange medium can be continuously carried out through the buried pipe 9 after heat exchange of the evaporator C11 of the heat pump C.
Example 3
When the system is used for the first time, no bath wastewater is available, and the working mode 3 is started: the water in the hot water storage tank 3 is conveyed to a condenser C6 of the heat pump C for heat exchange and then returns to the hot water storage tank 3 again through a hot water inlet pipe C7, and the heat pump C circularly heats the cold water in the hot water storage tank 3 to above 42 ℃ required by life.
Claims (8)
1. The system for preparing domestic hot water by the bath wastewater source assisted by the circulating heating type ground source heat pump is characterized in that: the water heater comprises a clean water inlet pipe (1), a heat exchanger (16), a heat pump A, a heat pump B, a heat pump C, a bathing wastewater storage tank (24), a bathing wastewater drainage pipe (30) and a hot water storage tank (3), wherein the clean water inlet pipe (1) is respectively connected with the hot water storage tank (3) and the heat exchanger (16) in parallel, the bathing wastewater storage tank (24) is communicated with the bathing wastewater inlet pipe (23), the hot water storage tank (3) is communicated with a water outlet pipe A (4), the bathing wastewater storage tank (24) and the clean water inlet pipe (1) are respectively connected with the heat exchanger (16) for heat exchange, clean water subjected to heat exchange through the heat exchanger (16) sequentially exchanges heat through a condenser A (18) of the heat pump A and a condenser B (20) of the heat pump B and then is communicated with the hot water storage tank (3), bathing wastewater subjected to heat exchange through an evaporator B (27) of the heat pump B and an evaporator A (29) of the heat pump A sequentially exchanges heat through the heat exchanger (16) and then is communicated with the bathing wastewater drainage pipe (30), and a water outlet pipe B (5) of the hot water storage tank (3) returns to the hot water storage tank (3) through a hot water inlet pipe C (7) again.
2. The system for preparing domestic hot water by using the cyclic heating type ground source heat pump assisted bathing wastewater source as claimed in claim 1, characterized in that: the fresh water heat exchanger is characterized in that a hot water tank water inlet pipe A (2) communicated with a hot water storage tank (3) and a heat exchange water inlet pipe A (15) communicated with a heat exchange water inlet end A of a heat exchanger (16) are connected to the fresh water inlet pipe (1) in a parallel connection mode in a communicating mode, a valve A (14) is arranged on the hot water tank water inlet pipe A (2) in a communicating mode, and a valve B (22) is arranged on the heat exchange water inlet pipe A (15) in a communicating mode.
3. The system for preparing domestic hot water from a bathing wastewater source assisted by a circulating heating ground source heat pump as claimed in claim 2, characterized in that: the heat exchanger (16) and the heat exchange are intake the heat exchange water outlet end A of end A intercommunication and are intake end A intercommunication through the condensation of heat exchange outlet pipe A (17) and heat pump A's condenser A (18), the condensation of condenser A (18) is outtake end A and is intake end B intercommunication through the condensation of connecting pipe A (19) and heat pump B's condenser B (20), the condensation of condenser B (20) is outtake end B and is passed through hot water tank inlet pipe B (21) intercommunication hot water storage water tank (3).
4. The system for preparing domestic hot water by using the cyclic heating type ground source heat pump assisted bathing wastewater source as claimed in claim 1, characterized in that: the bath wastewater storage tank (24) is communicated and connected with a bath wastewater outlet pipe (25) communicated with a heat exchange water inlet end B of the heat exchanger (16), and the bath wastewater outlet pipe (25) is communicated and provided with a wastewater pump A (31).
5. The system for preparing domestic hot water by using the cyclic heating type ground source heat pump assisted bathing wastewater source as claimed in claim 4, wherein: the heat exchange water outlet end B of the heat exchanger (16) communicated with the heat exchange water inlet end B is communicated with an evaporation water inlet end B of an evaporator B (27) of the heat pump B through a heat exchange water outlet pipe B (26), the evaporation water outlet end B of the evaporator B (27) is communicated with an evaporation water inlet end A of an evaporator A (29) of the heat pump A through a connecting pipe B (28), and the evaporation water outlet end A of the evaporator A (29) is communicated with a bathing wastewater drainage pipe (30).
6. The system for preparing domestic hot water by using the cyclic heating type ground source heat pump assisted bathing wastewater source as claimed in claim 1, characterized in that: and the water outlet pipe B (5) is communicated with a circulating pump A (12).
7. The system for preparing domestic hot water by using the cyclic heating type ground source heat pump assisted bathing wastewater source as claimed in claim 1, characterized in that: the evaporation liquid outlet end C of an evaporator C (11) of the heat pump C is communicated with one end of a buried pipe (9) through a heat exchange medium liquid outlet pipe (8), and the other end of the buried pipe (9) is communicated with the evaporation liquid inlet end C of the evaporator C (11) through a heat exchange medium liquid inlet pipe (10).
8. The system for preparing domestic hot water from a bathing wastewater source assisted by a circulating heating ground source heat pump as claimed in claim 7, characterized in that: and a circulating pump B (13) is communicated with the heat exchange medium liquid inlet pipe (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123287805.3U CN217636189U (en) | 2021-12-24 | 2021-12-24 | System for preparing domestic hot water by bath wastewater source assisted by circulating heating type ground source heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123287805.3U CN217636189U (en) | 2021-12-24 | 2021-12-24 | System for preparing domestic hot water by bath wastewater source assisted by circulating heating type ground source heat pump |
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| Publication Number | Publication Date |
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| CN217636189U true CN217636189U (en) | 2022-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123287805.3U Active CN217636189U (en) | 2021-12-24 | 2021-12-24 | System for preparing domestic hot water by bath wastewater source assisted by circulating heating type ground source heat pump |
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| CN (1) | CN217636189U (en) |
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2021
- 2021-12-24 CN CN202123287805.3U patent/CN217636189U/en active Active
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