CN214841314U - Civil residence fresh air waste heat utilization system based on air source heat pump - Google Patents
Civil residence fresh air waste heat utilization system based on air source heat pump Download PDFInfo
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- CN214841314U CN214841314U CN202023328921.0U CN202023328921U CN214841314U CN 214841314 U CN214841314 U CN 214841314U CN 202023328921 U CN202023328921 U CN 202023328921U CN 214841314 U CN214841314 U CN 214841314U
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Abstract
The utility model discloses a civilian house new trend waste heat utilization system based on air source heat pump has realized effectual recycle based on air source heat pump to the waste heat of civilian house new trend system. The fresh air unit is connected with each residential building through an air supply pipeline and an air exhaust pipeline. The split type evaporator is connected with the fresh air unit through a fresh air switch valve and an exhaust switch valve, and the split type evaporator is communicated with the outside through an outdoor communicating pipeline. The fresh air inlet and the air exhaust outlet of the fresh air unit are respectively connected with a fresh air bypass valve and an air exhaust bypass valve. The refrigerant inlet and outlet of the split evaporator are connected with the outlet of the electronic expansion valve and the inlet of the scroll compressor. The outlet of the scroll compressor is respectively connected with the inlet of the electronic expansion valve through the heating condensation heat exchanger and the heat storage type domestic hot water tank. The water supply and return ports of the heat storage type domestic hot water tank are connected with each residential building through domestic hot water supply and return pipes. The water supply and return ports of the heating condensing heat exchanger are connected with each residential building through floor heating water supply and return pipes.
Description
Technical Field
The utility model relates to an utilize civilian house new trend waste heat utilization system of air source heat pump realization belongs to new wind energy source recycle field.
Background
In recent years, in order to pursue comfort and health of residential buildings, more and more buildings are provided with concentrated cooling and heating and concentrated domestic hot water systems, wherein the concentrated heating system mainly adopts a floor radiation and fresh air mode, generally, the floor radiation system bears basic heat load, and the fresh air system bears ventilation and humidification functions. In winter, outdoor cold air is sent into a room in an organized way through a fresh air unit after being subjected to dust removal, filtration, humidification and temperature regulation, and meanwhile, indoor dirty air is displaced and discharged in an organized way.
For residential buildings, a minimum air change of 0.5 times per hour is generally designed. In northern cold areas, the fresh air heat load formed in the coldest days in winter accounts for 20% of the heating heat load of a common building and about 40% of the heating heat load of an energy-saving building, the whole heating energy consumption is relatively large for ensuring the qualities of fresh air humidity, temperature and the like, and the initial investment and the operating cost of equipment are inevitably increased if no recovery measures are taken.
The existing fresh air waste heat recovery device is provided with energy exchange equipment on a fresh air unit, and the energy exchange equipment is directly used for exchanging heat or cold of fresh air and exhaust air by utilizing the temperature difference of indoor air and outdoor air. The fresh air waste heat recovery device is generally divided into sensible heat recovery and total heat recovery. However, the total heat exchanger is expensive, and the indoor humidity in the northern cold area is generally not high in winter, so the effect of wet exchange in the northern cold area is not great in winter, and plate-type or plate-fin-type sensible heat exchangers are mostly adopted at present. However, the sensible heat exchanger can only recover 50% -60% of the heat of the exhaust air, and after the fresh air heat exchange, the fresh air reheating load needs to be additionally added in the heating equipment of the building. Therefore, the heat recovery function of the traditional fresh air waste heat recovery device is single, the problems of condensation and the like need to be considered, and although a certain recycling effect is achieved, the equipment investment and the equipment output are difficult to balance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a civilian house new trend waste heat utilization system based on air source heat pump, it has realized effectual recycle to the waste heat of civilian house new trend system based on air source heat pump.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a civilian house new trend waste heat utilization system based on air source heat pump, the new trend unit passes through supply air duct, exhaust duct and is connected its characterized in that with each resident house: the indoor port of the split evaporator is respectively connected with a fresh air inlet and an exhaust air outlet of the fresh air unit through a fresh air switch valve and an exhaust air switch valve, and the outdoor port of the split evaporator is communicated with the outdoor through an outdoor communicating pipeline; the fresh air inlet and the air exhaust outlet of the fresh air unit are respectively connected with a fresh air bypass valve and an air exhaust bypass valve which are used for being communicated with the outdoor; the refrigerant inlet and the refrigerant outlet of the split evaporator are respectively connected with the outlet of the electronic expansion valve and the inlet of the scroll compressor, the outlet of the scroll compressor is divided into two paths, one path is sequentially connected with the inlet of the electronic expansion valve through the floor heating switching valve and the heating condensing heat exchanger, and the other path is sequentially connected with the inlet of the electronic expansion valve through the domestic hot water switching valve and the heat storage type domestic hot water tank; the water supply port and the water return port of the heat storage type domestic hot water tank are respectively connected with each residential building through a domestic hot water supply pipe and a domestic hot water return pipe, a domestic hot water circulating pump is installed on the domestic hot water supply pipe, and a temperature detector is arranged in the heat storage type domestic hot water tank; the water supply port and the water return port of the heating condensation heat exchanger are respectively connected with each residential building through a floor heating water supply pipe and a floor heating water return pipe.
The utility model has the advantages that:
the utility model discloses based on air source heat pump has realized extracting and has effectively been used for life hot water and floor radiation heating to civil residence new trend system's waste heat, and the new wind energy resource recycle rate is high, the specially adapted northern severe cold and the civil residence new trend system in cold area.
Drawings
Fig. 1 is a schematic diagram of the new air waste heat utilization system of the civil residence.
Detailed Description
Fig. 1 shows the utility model discloses civilian house new trend waste heat utilization system. The fresh air handling unit 1 is connected with fresh air system corollary equipment of each residential building through supply air duct 19, exhaust duct 18, wherein: the indoor opening of the split evaporator 6 is respectively connected with a fresh air inlet and an exhaust air outlet of the fresh air unit 1 through a fresh air switch valve 3 and an exhaust air switch valve 4, and the outdoor opening of the split evaporator 6 is communicated with the outdoor through an outdoor communicating pipeline 27; a fresh air inlet and an air exhaust outlet of the fresh air unit 1 are respectively connected with a fresh air bypass valve 2 and an air exhaust bypass valve 5 which are used for being communicated with the outdoor; a refrigerant inlet and a refrigerant outlet of the split evaporator 6 are respectively connected with an outlet of the electronic expansion valve 11 and an inlet of the scroll compressor 7, an outlet of the scroll compressor 7 is divided into two paths, one path is sequentially connected with the inlet of the electronic expansion valve 11 through the floor heating switching valve 24 and the heating condensation heat exchanger 8, and the other path is sequentially connected with the inlet of the electronic expansion valve 11 through the domestic hot water switching valve 23 and the heat storage type domestic hot water tank 9; a water supply port and a water return port of the heat storage type domestic hot water tank 9 are respectively connected with a domestic hot water system of each residential building through a domestic hot water supply pipe 25 and a domestic hot water return pipe 26, a domestic hot water circulating pump 10 is installed on the domestic hot water supply pipe 25, and a temperature detector (not shown in the figure) is arranged in the heat storage type domestic hot water tank 9; the water supply port and the water return port of the heating condensing heat exchanger 8 are connected to the floor radiant heating system of each residential building through a floor heating water supply pipe 21 and a floor heating water return pipe 20, respectively.
Fig. 1 schematically shows the residential houses 12 to 17 only, and the number of residential houses is not limited.
As shown in fig. 1, one end of the fresh air bypass valve 2 is connected to the fresh air inlet of the fresh air handling unit 1 and the other end is communicated with the outside, and one end of the exhaust air bypass valve 5 is connected to the exhaust air outlet of the fresh air handling unit 1 and the other end is communicated with the outside.
In practical implementation, as shown in fig. 1, the refrigerant circulates among the split-type evaporator 6, the scroll compressor 7, the heating condensing heat exchanger 8 and the electronic expansion valve 11, or among the split-type evaporator 6, the scroll compressor 7, the heat-storage domestic hot water tank 9 and the electronic expansion valve 11.
The utility model discloses in, split type evaporimeter 6, scroll compressor 7, electronic expansion valve 11 and heating condensation heat exchanger 8 or heat-retaining formula life hot-water tank 9 have constituted air source heat pump. The air source heat pump is a good energy recovery and amplification device, can not only improve low-grade heat energy into high-grade heat, but also can realize intermediate grade energy which is several times more than a small amount of input high-grade electric energy.
In actual design, in addition to the parallel connection between the heating condensing heat exchanger 8 and the heat storage domestic hot water tank 9 between the scroll compressor 7 and the electronic expansion valve 11, other connection methods can be adopted without limitation. For example, as shown in fig. 1, the outlet of the scroll compressor 7 is connected to the inlet of the electronic expansion valve 11 via the floor heating switching valve 24, the heating condensation heat exchanger 8, the domestic hot water switching valve 23, and the hot-storage domestic hot water tank 9 in this order, the outlet of the scroll compressor 7 is directly connected to the inlet of the domestic hot water switching valve 23 via a pipe, and the refrigerant outlet of the heating condensation heat exchanger 8 is connected to the inlet of the electronic expansion valve 11 via the switching valve 22. The floor heating switch valve 24, the domestic hot water switch valve 23 and the switch valve 22 are coordinated to make the heating condensing heat exchanger 8 and the heat storage type domestic hot water tank 9 operate independently.
The utility model discloses in, new trend ooff valve 3, air exhaust ooff valve 4, new trend by-pass valve 2, air exhaust by-pass valve 5, floor heating diverter valve 24, life hot water diverter valve 23, the thermoscope to and new trend unit 1, split type evaporimeter 6, electronic expansion valve 11, scroll compressor 7, heating condensation heat exchanger 8, heat-retaining formula life hot-water tank 9, life hot water circulating pump 10 are connected with controlling means, and their (on-off state or running state) coordinate work under controlling means's control. The control device may be a control device known in the art, such as a PLC controller, and will not be described in detail herein.
The utility model discloses in, new trend system corollary equipment, life hot water system and floor radiation heating system have been under construction the equipment of installation in for the resident's house. The fresh air handling unit 1, the split evaporator 6, the electronic expansion valve 11, the scroll compressor 7, the heating condensation heat exchanger 8, the heat storage type domestic hot water tank 9 and the like are the existing devices in the field.
The working process and principle of the new air waste heat utilization system of the civil residence of the utility model are explained by taking fig. 1 as an example below:
in winter, the fresh air switch valve 3 and the exhaust bypass valve 5 are closed, the fresh air bypass valve 2 and the exhaust switch valve 4 are opened, dirty air discharged by residential houses 12-17 is collected and enters the fresh air handling unit 1 through the exhaust pipeline 18 to perform sensible heat exchange with outdoor cold air entering through the fresh air bypass valve 2, then enters the split evaporator 6 through the exhaust switch valve 4 as a heat source to release heat of a refrigerant (cold medium) and then is discharged outdoors through the outdoor communicating pipeline 27, meanwhile, the split evaporator 6 sends the gasified refrigerant (gas) absorbing heat to the scroll compressor 7 to be compressed and liquefied, the high-temperature refrigerant discharged by the scroll compressor 7 is sent into the heat storage type domestic hot water tank 9 to perform heat exchange to prepare domestic hot water (taking the example in fig. 1, the domestic hot water switch valve 23 is opened at the moment, the floor heating switch valve 24 and the switch valve 22 are closed), and the prepared domestic hot water is sent into the residential houses through the domestic hot water supply pipe 25 under the action of the domestic hot water circulating pump 10 In the domestic hot water system of the residences 12 to 17, water circularly fed out by the domestic hot water system of the residences 12 to 17 through the domestic hot water return pipe 26 returns to the heat storage type domestic hot water tank 9, when the water temperature in the heat storage type domestic hot water tank 9 reaches a preset value, high-temperature refrigerant discharged by the scroll compressor 7 is switched and fed into the heating condensation heat exchanger 8 (taking fig. 1 as an example, the floor heating switching valve 24 and the switching valve 22 are opened, and the domestic hot water switching valve 23 is closed), so that the high-temperature refrigerant exchanges heat with floor radiation heating return water returned from the floor heating return pipe 20 and is fed into the floor radiation heating system of the residences 12 to 17 through the floor heating water supply pipe 21, and is used for heating and increasing the temperature of the floor radiation heating water.
In summer, the fresh air bypass valve 2 and the exhaust switch valve 4 are closed, the fresh air switch valve 3 and the exhaust bypass valve 5 are opened, fresh air entering through the outdoor communicating pipeline 27 is firstly used as a heat source to release heat to a refrigerant (a refrigerant) in the split type evaporator 6, temperature-reduced air after pre-cooling (pre-cooling refers to primary temperature reduction before the temperature reduction treatment of the fresh air handling unit 1) returns to the fresh air handling unit 1 through the fresh air switch valve 3, so that dirty air exhausted by residential houses 12-17 is collected and then enters the fresh air handling unit 1 through the exhaust pipeline 18 to exchange sensible heat with the returned temperature-reduced air, then is exhausted outdoors through the exhaust bypass valve 5, meanwhile, the split type evaporator 6 sends the refrigerant (gas) after absorbing heat gasification into the scroll compressor 7 to be compressed and liquefied, the high-temperature refrigerant exhausted by the compressor 7 is directly sent into the heat storage type hot water tank 9 to exchange heat to prepare domestic hot water (taking the figure 1 as an example, at this time, the domestic hot water switching valve 23 is opened, the floor heating switching valve 24 and the switching valve 22 are closed), the prepared domestic hot water is sent to the domestic hot water systems of the residents 12 to 17 through the domestic hot water supply pipe 25 under the action of the domestic hot water circulating pump 10, and the water circularly sent by the domestic hot water systems of the residents 12 to 17 through the domestic hot water return pipe 26 is returned to the heat storage type domestic hot water tank 9.
The utility model has the advantages of as follows:
1. compared with public buildings, the fresh air system of the residential building is relatively dispersed, the scale of a single fresh air system is small, the air outlets are distributed dispersedly, and centralized ventilation and emission are difficult to achieve. The utility model discloses the new trend to residential housing promptly is aired exhaust the scale for a short time and the characteristics of dispersion design, with traditional air source heat pump split installation and arranging, the scale is little, the flexibility is high, on satisfying the nimble basis that corresponds the demand of arranging according to the air exit of dispersion, realized the abundant recovery of fresh air energy source, solved in the face of residential housing building new trend unit dispersion, the scale is little, the unsuitable difficult problem of the large-scale recovery unit of tradition.
2. The utility model discloses utilized air source heat pump to force the characteristics of carrying heat, carried out abundant extraction to the waste heat in the dirty muddy wind of fresh air handling unit exhaust, waste heat recovery rate can reach 100% basically, has very big improvement and improvement than traditional sensible heat exchanger, has solved resident house fresh air handling unit dispersion, and the low and current device of return on investment rate of return retrieves the problem of extracting inefficiency.
3. The utility model discloses an aspect is used for preparing life hot water in the indoor warm waste heat of airing exhaust of winter recycle, and will air exhaust and introduce split type evaporimeter, the problem of air source heat pump frequent defrosting in winter has effectively been solved, air source heat pump's winter operation operating mode has greatly been improved, the efficiency ratio of totality has been promoted, on the other hand, except that the indoor waste heat of airing exhaust of recycle is used for preparing life hot water in summer, the thought of new trend precooling has still been proposed, send the precooling air after carrying the heat back to the new trend unit, thereby greatly reduced new trend unit's refrigeration consumption, reach energy saving and consumption reduction's purpose.
4. The traditional hot water supply generally utilizes a machine room heat source to centrally prepare domestic hot water, the whole domestic hot water pipe network is huge, the heat dissipation loss of pipelines is huge, and the cost of hot water fuel all the year round is high. The utility model discloses the waste heat that produces when recycle new trend system supplies cold and heat, it is different from simple heat exchange formula heat recovery, and it is the contrary carnot circulation that utilizes the air source heat pump with the low-grade heat of retrieving and forces the completion, consequently the utility model discloses a prepare the hydrothermal purpose of life with a small amount of high-grade electric energy, this is that traditional simple heat exchanger can not be done, and it is huge that traditional pipe network heat loss has also been solved to the small-scale form of dispersion simultaneously, and hot water cost is a difficult problem at a high level.
The above description is the preferred embodiment of the present invention and the technical principle applied by the preferred embodiment, and for those skilled in the art, without departing from the spirit and scope of the present invention, any obvious changes based on the equivalent transformation, simple replacement, etc. of the technical solution of the present invention all belong to the protection scope of the present invention.
Claims (4)
1. The utility model provides a civilian house new trend waste heat utilization system based on air source heat pump, the new trend unit passes through supply air duct, exhaust duct and is connected its characterized in that with each resident house: the indoor port of the split evaporator is respectively connected with a fresh air inlet and an exhaust air outlet of the fresh air unit through a fresh air switch valve and an exhaust air switch valve, and the outdoor port of the split evaporator is communicated with the outdoor through an outdoor communicating pipeline; the fresh air inlet and the air exhaust outlet of the fresh air unit are respectively connected with a fresh air bypass valve and an air exhaust bypass valve which are used for being communicated with the outdoor; the refrigerant inlet and the refrigerant outlet of the split evaporator are respectively connected with the outlet of the electronic expansion valve and the inlet of the scroll compressor, the outlet of the scroll compressor is divided into two paths, one path is sequentially connected with the inlet of the electronic expansion valve through the floor heating switching valve and the heating condensing heat exchanger, and the other path is sequentially connected with the inlet of the electronic expansion valve through the domestic hot water switching valve and the heat storage type domestic hot water tank; the water supply port and the water return port of the heat storage type domestic hot water tank are respectively connected with each residential building through a domestic hot water supply pipe and a domestic hot water return pipe, a domestic hot water circulating pump is installed on the domestic hot water supply pipe, and a temperature detector is arranged in the heat storage type domestic hot water tank; the water supply port and the water return port of the heating condensation heat exchanger are respectively connected with each residential building through a floor heating water supply pipe and a floor heating water return pipe.
2. The air source heat pump-based fresh air waste heat utilization system for the civil houses, as claimed in claim 1, wherein:
one end of the fresh air bypass valve is connected with a fresh air inlet of the fresh air unit, the other end of the fresh air bypass valve is communicated with the outside, one end of the exhaust bypass valve is connected with an exhaust outlet of the fresh air unit, and the other end of the exhaust bypass valve is communicated with the outside.
3. The air source heat pump-based civil house fresh air waste heat utilization system according to claim 1 or 2, characterized in that:
the fresh air switch valve, the exhaust switch valve, the fresh air bypass valve, the exhaust bypass valve, the floor heating switching valve, the domestic hot water switching valve, the temperature detector, the fresh air unit, the split evaporator, the electronic expansion valve, the scroll compressor, the heating condensation heat exchanger, the heat storage type domestic hot water tank and the domestic hot water circulating pump are all connected with a control device.
4. The air source heat pump-based fresh air waste heat utilization system for the civil houses as claimed in claim 3, wherein:
the control device is a PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023328921.0U CN214841314U (en) | 2020-12-30 | 2020-12-30 | Civil residence fresh air waste heat utilization system based on air source heat pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023328921.0U CN214841314U (en) | 2020-12-30 | 2020-12-30 | Civil residence fresh air waste heat utilization system based on air source heat pump |
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| CN214841314U true CN214841314U (en) | 2021-11-23 |
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| CN202023328921.0U Active CN214841314U (en) | 2020-12-30 | 2020-12-30 | Civil residence fresh air waste heat utilization system based on air source heat pump |
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