CN210425636U - Sewage source heat pump system for recycling waste heat of bath drainage - Google Patents

Sewage source heat pump system for recycling waste heat of bath drainage Download PDF

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Publication number
CN210425636U
CN210425636U CN201921256667.2U CN201921256667U CN210425636U CN 210425636 U CN210425636 U CN 210425636U CN 201921256667 U CN201921256667 U CN 201921256667U CN 210425636 U CN210425636 U CN 210425636U
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sewage
heat exchanger
heat pump
heat
sewage source
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CN201921256667.2U
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Chinese (zh)
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冯小平
蔡璐
曾育嘉
向前超
虞晶燕
王振平
穆朝云
孟磊
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Jiangnan University
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Jiangnan University
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Abstract

The utility model relates to a bathing drainage waste heat recovery's sewage source heat pump system, including the effluent water sump, water treatment facilities, first plate heat exchanger, second plate heat exchanger, sewage source heat pump set, hot-water tank. The sewage treatment system is characterized in that the sewage pool is connected with water treatment equipment, the water treatment equipment is connected with a first plate heat exchanger, the first plate heat exchanger is connected with a second plate heat exchanger, the second plate heat exchanger is connected with a sewage source heat pump unit, and the sewage source heat pump unit is connected with a hot water tank. The utility model has the advantages that: through two plate heat exchangers, with the high-efficient utilization of the heat energy in the sewage, both energy-conserving practical, can solve the problem in the aspect of the environment again.

Description

Sewage source heat pump system for recycling waste heat of bath drainage
Technical Field
The utility model relates to a bathing drainage waste heat recovery's sewage source heat pump system belongs to the renewable energy field.
Background
At present, most of heat sources adopted by hot water are steam, an air source heat pump and natural gas, and the cost of operation is high, so people pay more and more attention to the utilization of renewable resources and waste heat. In life, a large amount of waste heat is wasted, for example, hot water discharged from a bathroom is used, and waste water generated during bathing generally has a temperature of about 35 ℃, and contains a large amount of heat energy. Especially for places with high population density and concentrated bathing, such as colleges and universities, bathroom energy consumption is an important component in energy consumption of the colleges and universities. If bathroom sewage is directly discharged to the ground, not only heat pollution is caused, but also available heat energy is wasted, and the bathroom sewage is unreasonable from the economic perspective and the environmental protection perspective.
Therefore, a system capable of utilizing waste heat of bath drainage to the maximum extent and carrying out certain pretreatment on the bath drainage to realize energy conservation and emission reduction is needed.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a sewage source heat pump system of bathing drainage waste heat recovery, with the waste water of production in the bathroom after handling recycle, through simple structure, the heat of drawing in the waste water is used for producing the bathing hot water, can make and obtain make full use of in the waste water, and waste water is handled after the bathing simultaneously, has also satisfied the requirement in the aspect of the environmental protection.
The technical scheme of the utility model as follows:
a sewage source heat pump system for recovering waste heat of bath drainage comprises a sewage pool 1, a sewage filtering device 2, a first heat exchanger 3, a second heat exchanger 4, a sewage source heat pump unit 5, a hot water tank 6 and a water replenishing pipeline 11, wherein the sewage source heat pump unit 5 comprises an evaporator 7, a compressor 8, a condenser 9 and a throttle valve 10, two passages are respectively arranged in the evaporator 7 and the condenser 9, the first passage of the evaporator 7, the compressor 8, the first passage of the condenser 9 and the throttle valve 10 are sequentially connected into a loop, the sewage pool 1 is connected with a sewage filtering device 2 through a pipeline, the sewage filtering device 2 is connected with the first heat exchanger 3 through a pipeline, the first heat exchanger 3 is connected with the second heat exchanger 4 through a pipeline, the second heat exchanger 4 is connected with the second passage of the evaporator 7 of the sewage source heat pump unit 5 through a pipeline, the second passage of the condenser 9 is connected with the hot water tank 6; the water replenishing pipeline 11 is connected with the first heat exchanger 3, and the outlet of the water replenishing pipeline is connected with the hot water tank 6.
The utility model discloses an in the embodiment, be equipped with hair collector and mechanical filter in the sewage filtration equipment 2 and loop through the pipeline and link to each other, get into first heat exchanger 3 through water pump C15 after handling with the water in the effluent water sump to prevent that the pollutant in the sewage from blockking up the heat exchanger pipeline.
The utility model discloses an in an embodiment, the moisturizing of hot-water tank carries out the heat exchange by moisturizing pipeline 11 earlier through first heat exchanger 3 and waste water and then gets into the hot-water tank, and the moisturizing absorbs the heat back temperature in the waste water and risees to reduce the heat energy consumption among the follow-up heat pump system.
The utility model discloses an in the embodiment, the waste water after the heat transfer reenters the refrigerant in the evaporimeter 7 among second heat exchanger 4 and the sewage source heat pump set 5 and carries out the heat exchange, and the refrigerant draws heat energy from sewage, is equipped with water pump A13 on the pipeline that the two links to each other.
The utility model discloses an in an embodiment, sewage source heat pump set 5 absorbs the heat through evaporimeter 7 in following the bathing waste water, and rethread condenser 9 releases the condensation heat heating bathing water, is equipped with water pump B14 on the pipeline that condenser 9 and hot-water tank 6 link to each other wherein.
In an embodiment of the present invention, the first heat exchanger 3 is a plate heat exchanger or a fixed tube-plate heat exchanger.
In an embodiment of the present invention, the second heat exchanger 4 is a plate heat exchanger or a fixed tube-plate heat exchanger.
The utility model discloses the beneficial effect who gains:
(1) the utility model discloses a bathing drainage waste heat recovery's sewage source heat pump system carries out the secondary heat transfer through two plate heat exchangers to sewage, can fully retrieve heat energy in the bathroom waste water, and simultaneously, waste water is reduced and is discharged to the back about 5 ℃, has avoided the formation of thermal pollution, has carried out the preliminary treatment before waste water reentrant heat exchange simultaneously, has reduced the jam of pollutant to the heat exchanger to and discharge more to satisfy the environmental protection requirement after handling.
(2) Compared with the air source heat pump, gas, steam and coal heating, the water source heat pump has high energy efficiency and low system operation cost, and can realize the aims of energy conservation and environmental protection.
Drawings
Fig. 1 the utility model discloses a sewage source heat pump system's of bathing drainage waste heat recovery structure schematic diagram, wherein, 1-effluent water sump, 2-sewage filtration equipment, 3-first heat exchanger, 4-second heat exchanger, 5-sewage source heat pump set, 6-hot-water tank 6, 7-evaporimeter, 8-compressor, 9-condenser, 10-choke valve, 11-water supply pipeline, 13-water pump A, 14-water pump B, 15-water pump C.
Detailed Description
For the purpose of more clearly understanding the technical solution, purpose and effect of the present invention, the present invention is now described with reference to the accompanying drawings and examples:
example 1
As shown in figure 1, the utility model discloses a sewage source heat pump system for waste heat recovery of bathing drainage, which comprises a sewage pool 1, a sewage filtering device 2, a first heat exchanger 3, a second heat exchanger 4, a sewage source heat pump unit 5, a hot water tank 6 and a water replenishing pipeline 11, wherein, the sewage source heat pump unit 5 comprises an evaporator 7, a compressor 8, a condenser 9 and a throttle valve 10, two passages are arranged in the evaporator 7 and the condenser 9, the first passage of the evaporator 7, the first passage of the compressor 8, the first passage of the condenser 9 and the throttle valve 10 are connected in sequence to form a loop, the sewage pool 1 is connected with the sewage filtering device 2 through a pipeline, the sewage filtering device 2 is connected with the first heat exchanger 3 through a pipeline, the first heat exchanger 3 is connected with the second heat exchanger 4 through a pipeline, the second heat exchanger 4 is connected with the second passage of the evaporator 7 of the sewage source heat pump unit 5 through a pipeline, the second passage of the condenser 9 is connected with the hot water tank 6; the water replenishing pipeline 11 is connected with the first heat exchanger 3, and the outlet of the water replenishing pipeline is connected with the hot water tank 6.
Preferably, the inside of the sewage filtering apparatus 2 is provided with a hair collector and a mechanical filter which are sequentially connected through a pipeline, and water in the sewage pool is treated and then enters the first heat exchanger 3 through the water pump C15, so that pollutants in the sewage are prevented from blocking the pipeline of the heat exchanger.
Preferably, the water replenishing pipeline 11 of the hot water tank exchanges heat with the wastewater through the first heat exchanger 3 and then enters the hot water tank, and the temperature of the water replenishing pipeline rises after absorbing heat in the wastewater so as to reduce the heat energy consumption in a subsequent heat pump system.
Preferably, the waste water after heat exchange enters the second heat exchanger 4 to exchange heat with a working medium in an evaporator 7 of the sewage source heat pump unit 5, so as to further extract heat energy from the waste water, and a water pump A13 is arranged on a pipeline connected with the waste water.
Preferably, the sewage source heat pump unit 5 absorbs heat from the bath wastewater through the evaporator 7, and then releases condensation heat through the condenser 9 to heat the bath water, wherein a water pump B14 is arranged on a pipeline connecting the condenser 9 and the hot water tank 6.
After the sewage in the bathroom is discharged, the sewage is primarily filtered and treated by a hair collector, a mechanical filter and an active carbon filter in the sewage filtering device 2, then the sewage is pumped into the first heat exchanger 3 by a water pump C15 to exchange heat with cold water in the water replenishing pipeline 11, so that the temperature of the replenished water is raised, the temperature of the sewage is also reduced, then the sewage continuously enters the second heat exchanger 4 to exchange heat with a refrigerant in an evaporator 7 in the sewage source heat pump unit 5, the refrigerant extracts heat energy from the sewage, the sewage after the second heat exchange is discharged into the sewer pipeline, a working medium in the evaporator absorbs heat and is gasified, the sewage is subsequently compressed by a compressor to generate high-temperature and high-pressure gas, then the high-temperature and high-pressure gas enters a condenser, latent heat is condensed and discharged to exchange heat with the cold water in a water heater, so that the replenished water is changed into hot water to enter a hot water tank for further work, then enters the evaporator 7 for cycle work after being throttled and cooled by the throttle valve 10.
Example 2
To the sewage line processing in the bathroom of a certain colleges and universities of Jiangsu, according to the utility model discloses an equipment fixing bathing drainage waste heat recovery's sewage source heat pump system, wherein first heat exchanger 3 and second heat exchanger 4 are plate heat exchanger, and the temperature of bathroom sewage is 32 ~ 34 ℃, through the utility model discloses a system's processing for the discharge temperature of sewage only is 5 ~ 6 ℃, and can supply hydrothermal use in the bathroom, need not extra heat supply, greatly reduced the energy consumption.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims (9)

1. A sewage source heat pump system for recovering waste heat of bath drainage is characterized by comprising a sewage pool (1), a sewage filtering device (2), a first heat exchanger (3), a second heat exchanger (4), a sewage source heat pump unit (5), a hot water tank (6) and a water supplementing pipeline (11), wherein the sewage source heat pump unit (5) comprises an evaporator (7), a compressor (8), a condenser (9) and a throttle valve (10), two passages are respectively arranged in the evaporator (7) and the condenser (9), the first passage of the evaporator (7), the compressor (8), the first passage of the condenser (9) and the throttle valve (10) are sequentially connected into a loop, the sewage pool (1) is connected with the sewage filtering device (2) through a pipeline, the sewage filtering device (2) is connected with the first heat exchanger (3) through a pipeline, the first heat exchanger (3) is connected with the second heat exchanger (4) through a pipeline, the second heat exchanger (4) is connected with a second passage of an evaporator (7) of the sewage source heat pump unit (5) through a pipeline, and a second passage of the condenser (9) is connected with the hot water tank (6); the water supplementing pipeline (11) is connected with the first heat exchanger (3) and the outlet of the pipeline is connected with the hot water tank (6).
2. A waste heat recovery sewage source heat pump system according to claim 1, characterized in that a hair collector and a mechanical filter are arranged in the sewage filtering device (2), and the hair collector and the mechanical filter are sequentially connected through a pipeline.
3. A waste heat recovery sewage source heat pump system according to claim 2, characterized in that the mechanical filter of the sewage filtering device (2) is connected to the first heat exchanger (3) by a water pump C (15).
4. The waste heat recovery sewage source heat pump system of claim 1, wherein the working medium R22 of the sewage source heat pump unit (5) is used.
5. A waste heat recovery sewage source heat pump system according to claim 1, wherein a water pump a (13) is provided on the pipe connecting the second heat exchanger (4) and the evaporator (7).
6. A waste heat recovery sewage source heat pump system according to claim 1, wherein a water pump B (14) is provided on the pipeline connecting the condenser (9) and the hot water tank (6).
7. The waste heat recovery sewage source heat pump system of claim 1, wherein the temperature of the sewage is 30-35 ℃.
8. A waste heat recovery sewage source heat pump system according to claim 1, wherein the first heat exchanger (3) is a plate heat exchanger or a fixed tube plate heat exchanger.
9. A waste heat recovery sewage source heat pump system according to claim 1, wherein the second heat exchanger (4) is a plate heat exchanger or a fixed tube plate heat exchanger.
CN201921256667.2U 2019-08-05 2019-08-05 Sewage source heat pump system for recycling waste heat of bath drainage Active CN210425636U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921256667.2U CN210425636U (en) 2019-08-05 2019-08-05 Sewage source heat pump system for recycling waste heat of bath drainage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921256667.2U CN210425636U (en) 2019-08-05 2019-08-05 Sewage source heat pump system for recycling waste heat of bath drainage

Publications (1)

Publication Number Publication Date
CN210425636U true CN210425636U (en) 2020-04-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112665218A (en) * 2020-12-24 2021-04-16 江南大学 Energy-saving bathroom waste heat recovery system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112665218A (en) * 2020-12-24 2021-04-16 江南大学 Energy-saving bathroom waste heat recovery system

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