CN211204497U - Regenerative sewage source heat pump system - Google Patents
Regenerative sewage source heat pump system Download PDFInfo
- Publication number
- CN211204497U CN211204497U CN201921908994.1U CN201921908994U CN211204497U CN 211204497 U CN211204497 U CN 211204497U CN 201921908994 U CN201921908994 U CN 201921908994U CN 211204497 U CN211204497 U CN 211204497U
- Authority
- CN
- China
- Prior art keywords
- water
- water inlet
- water outlet
- sewage
- heat pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
Landscapes
- Other Air-Conditioning Systems (AREA)
Abstract
The utility model discloses a regeneration sewage source heat pump system relates to the ground source heat pump field. The system is used for solving the problems that the existing regenerated sewage is used as a heat source, the water supply amount is insufficient for the full utilization of low-level heat energy, and the like. The method comprises the following steps: lifting a pump station and a heat pump system; the lifting pump station is used for conveying the regenerated sewage in the water storage tank into the heat pump system through a water pipe; the heat pump system comprises a first sewage heat exchanger, a first heat pump, a second sewage heat exchanger and a second heat pump; the first water inlet is communicated with the lifting pump station, and the first water outlet is communicated with the second sewage exchanger through the fifth water inlet; the second water inlet is communicated with the first heat pump through a third water outlet, and the second water outlet is communicated with the first heat pump through a third water inlet; the sixth water inlet is communicated with the second heat pump through the seventh water outlet, and the sixth water outlet is communicated with the second heat pump through the seventh water inlet.
Description
Technical Field
The utility model relates to a ground source heat pump field, more specifically relate to regeneration sewage source heat pump system.
Background
The regenerated sewage source heat pump system belongs to one of ground source heat pump systems, and a heating system mainly comprises three parts: the system comprises an outdoor heat source heat exchange system, a heat pump machine room and an indoor heating terminal system. At present, many engineering examples exist about ground source heat pump systems, especially, ground source heat pump systems, underground water source heat pump systems, etc. The ground source heat pump system has large investment and complex construction and is influenced by the area, while the ground water source heat pump system has certain influence on the water quality of the ground water source during recharging, and the two heat pump systems also have the problem of cold and heat balance of the ground heat source which must be considered at the same time.
In the existing heat pump system with the regenerated sewage source as the heat source, the heat exchange of the regenerated sewage source adopts one-time heat exchange, the temperature drop amplitude of the regenerated sewage after one-time heat exchange is small, the heat exchange temperature difference is small, and the heat extracted from the sewage is small, so the heat utilization rate of the regenerated sewage source is low. Moreover, for large-scale district heating, the original conventional sewage source heat pump process system is limited by the quantity of regenerated sewage and is not applicable any more.
In summary, in the heat pump system using the regenerated sewage source as the heat source in the prior art, the application of the regenerated sewage source is limited due to the problems of insufficient water supply and the like caused by the low-level heat energy.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a regeneration sewage source heat pump system for solve current regeneration sewage as the heat source because of there being low-order heat energy for make full use of already supply water shortage scheduling problem, lead to the application in regeneration sewage source to receive the restriction.
The embodiment of the utility model provides a regeneration sewage source heat pump system, include: lifting a pump station and a heat pump system;
the lifting pump station is arranged in the water storage tank and is used for conveying the regenerated sewage in the water storage tank into the heat pump system through a water pipe;
the heat pump system comprises a first sewage heat exchanger, a first intermediate pump, a first heat pump, a system load pump, a second sewage heat exchanger, a second intermediate pump and a second heat pump;
the first sewage heat exchanger comprises a first water inlet, a first water outlet, a second water inlet and a second water outlet;
the first heat pump comprises a third water inlet, a third water outlet, a fourth water inlet and a fourth water outlet;
the second sewage heat exchanger comprises a fifth water inlet, a fifth water outlet, a sixth water inlet and a sixth water outlet;
the second heat pump comprises a seventh water inlet, a seventh water outlet, an eighth water inlet and an eighth water outlet;
the first water inlet is communicated with the lifting pump station through the water pipe, and the first water outlet is communicated with the second sewage exchanger through the fifth water inlet;
the second water inlet is communicated with the first heat pump through the third water outlet, the second water outlet is communicated with the first heat pump through the third water inlet, and the first intermediate pump is positioned between the second water outlet and the third water inlet;
the sixth water inlet is communicated with the second heat pump through the seventh water outlet, the sixth water outlet is communicated with the second heat pump through the seventh water inlet, and the second intermediate pump is positioned between the sixth water outlet and the seventh water inlet;
the fourth water outlet and the eighth water outlet are respectively communicated with a water inlet of a user side, the fourth water inlet and the eighth water inlet are respectively communicated with the system load pump, and the fifth water outlet is communicated with a municipal pipe network.
Preferably, the temperature of the regeneration sewage flowing into the first water inlet is higher than that of the regeneration sewage flowing out of the first water outlet;
the temperature of the medium flowing into the second water inlet is lower than that of the medium flowing out of the second water outlet, and the temperature of the medium flowing out of the second water outlet is lower than that of the regenerated sewage flowing into the first water inlet;
the temperature of the regenerated sewage flowing into the fifth water inlet is higher than that of the regenerated sewage flowing out of the fifth water outlet, the temperature of the medium flowing into the sixth water inlet is lower than that of the medium flowing out of the sixth water outlet, and the temperature of the medium flowing out of the sixth water outlet is lower than that of the regenerated sewage flowing into the fifth water inlet.
Preferably, the heat pump system further comprises an inlet valve, an outlet valve and a filter;
the inlet valve and the filter are sequentially arranged between the first water inlet and the lifting pump station, and the outlet valve, the inlet valve and the filter are sequentially arranged between the first water outlet and the fifth water inlet;
the outlet valve, the inlet valve and the filter are sequentially arranged between the second water outlet and the third water inlet, and the filter, the outlet valve, the inlet valve and the filter are sequentially arranged between the third water outlet and the second water inlet;
the outlet valve, the inlet valve and the filter are sequentially arranged between the sixth water outlet and the seventh water inlet, and the filter, the outlet valve, the water inlet valve and the filter are sequentially arranged between the seventh water outlet and the sixth water inlet;
the filter and the outlet valve are sequentially arranged between the fourth water outlet and the user side water inlet, and the filter and the outlet valve are sequentially arranged between the eighth water outlet and the user side water inlet; the filter and the inlet valve are sequentially arranged between the fourth water inlet and the system load pump, and the filter and the inlet valve are sequentially arranged between the eighth water inlet and the system load pump; and the outlet valve is arranged between the fifth water outlet and the municipal pipe network.
Preferably, the intermediary medium arranged in the first intermediary pump is water, and the intermediary medium arranged in the second intermediary pump is ethylene glycol.
Preferably, the system further comprises a grid sewage removing machine, wherein the grid sewage removing machine is arranged between the heat pump system and the lifting pump station and is used for filtering suspended matters in the regenerated sewage.
Preferably, the system also comprises a water distribution pipe network and a water return pipe network;
the water distribution pipe network is arranged between the lifting pump station and the heat pump system;
and the water inlet of the water outlet pipe network is communicated with the fifth water outlet and is used for discharging the regenerated sewage which is subjected to heat extraction and comes from the fifth water outlet into the municipal pipe network.
The embodiment of the utility model provides a regeneration sewage source heat pump system, include: lifting a pump station and a heat pump system; the lifting pump station is arranged in the water storage tank and is used for conveying the regenerated sewage in the water storage tank into the heat pump system through a water pipe; the heat pump system comprises a first sewage heat exchanger, a first intermediate pump, a first heat pump, a system load pump, a second sewage heat exchanger, a second intermediate pump and a second heat pump; the first sewage heat exchanger comprises a first water inlet, a first water outlet, a second water inlet and a second water outlet; the first heat pump comprises a third water inlet, a third water outlet, a fourth water inlet and a fourth water outlet; the second sewage heat exchanger comprises a fifth water inlet, a fifth water outlet, a sixth water inlet and a sixth water outlet; the second heat pump comprises a seventh water inlet, a seventh water outlet, an eighth water inlet and an eighth water outlet; the first water inlet is communicated with the lifting pump station through the water pipe, and the first water outlet is communicated with the second sewage exchanger through the fifth water inlet; the second water inlet is communicated with the first heat pump through the third water outlet, the second water outlet is communicated with the first heat pump through the third water inlet, and the first intermediate pump is positioned between the second water outlet and the third water inlet; the sixth water inlet is communicated with the second heat pump through the seventh water outlet, the sixth water outlet is communicated with the second heat pump through the seventh water inlet, and the second intermediate pump is positioned between the sixth water outlet and the seventh water inlet; the fourth water outlet and the eighth water outlet are respectively communicated with a water inlet of a user side, the fourth water inlet and the eighth water inlet are respectively communicated with the system load pump, and the fifth water outlet is communicated with a municipal pipe network. The heat pump system comprises two sewage heat exchangers, and can realize twice heat exchange on the sewage source, so that the temperature drop amplitude of the regenerated sewage is large, namely large heat can be extracted from the sewage, the heat utilization rate of the regenerated sewage source is increased, the heat supply capacity of the regenerated sewage source is improved, and the problem that the application of the existing regenerated sewage source is limited due to underutilization of low-level heat energy is solved; furthermore, the system arranges the lifting pump station in a reservoir, and the reservoir can play a role in adjusting the peak value and the valley value of sewage on one hand; because the heat pump system adopts a two-stage heat exchange process, the capacity of the water storage system can be reduced, so that the construction investment of a sewage pump station is saved, and the working and using time of the reservoir is also prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a regenerative sewage source heat pump system provided by an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Fig. 1 exemplarily shows a structural schematic diagram of a regenerative sewage source heat pump system provided by an embodiment of the present invention. As shown in fig. 1, the regenerative sewage source heat pump system at least comprises a lifting pump station and a heat pump system.
Specifically, the lift pump station 801 is disposed in the reservoir 80, a water inlet of the lift pump station 801 extends to the reservoir 80, and when a water pump of the lift pump station 801 is turned on, water in the reservoir 80 is pressurized and then is transported to the heat pump system of each heating area through the water supply main.
It should be noted that, in the embodiment of the present invention, the reservoir 80 disposed in front of the lifting pump station 801 is used for adjusting the peak value and the valley value of the sewage, so as to ensure that the water usage of the system is relatively stable. Further, because the heat pump system included in the system can realize a two-stage heat exchange process, the water storage tank 80 can also play a role in reducing the capacity of a water storage system, saving the investment of a sewage pump station and providing the working and using time of the water storage tank 80.
As shown in fig. 1, the heat pump system mainly comprises a first sewage heat exchanger 10, a first intermediate pump 20, a first heat pump 30, a system load pump 70, a second sewage heat exchanger 40, a second intermediate pump 50 and a second heat pump 60. The first sewage heat exchanger comprises a first water inlet 101, a first water outlet 102, a second water inlet 104 and a second water outlet 103. The first heat pump 30 includes a third water inlet 301, a third water outlet 302, a fourth water inlet 304 and a fourth water outlet 303. The second sewage heat exchanger 40 includes a fifth water inlet 401, a fifth water outlet 402, a sixth water inlet 404 and a sixth water outlet 403. The second heat pump 60 includes a seventh water inlet 501, a seventh water outlet 502, an eighth water inlet 504 and an eighth water outlet 503.
Specifically, the first water inlet 101 is communicated with the lifting pump station 801 through a water pipe to transmit the regenerated sewage from the water reservoir 80 to the first sewage heat exchanger 10, the first water outlet 102 is communicated with the second sewage heat exchanger 40 through the fifth water inlet 401 to transmit the regenerated sewage after heat exchange in the first sewage heat exchanger 10 to the second sewage heat exchanger 40. The second water inlet 104 is communicated with the first heat pump 30 through a third water outlet 302, and is used for transferring the medium which completes heat exchange from the first heat pump 30 into the first sewage heat exchanger 10, the second water outlet 103 is communicated with the first heat pump 30 through a third water inlet 301, and is used for transferring the medium which completes heat exchange in the first sewage heat exchanger 10 into the first heat pump 30, wherein the temperature of the medium which enters the first sewage heat exchanger 10 through the second water inlet 104 is lower than the temperature of the regenerated sewage which enters the first sewage heat exchanger 10 through the first water inlet 101, and therefore, the medium and the regenerated sewage which have temperature difference complete heat exchange in the first sewage heat exchanger 10, and after the medium flows out from the second water outlet 103, the temperature of the medium is higher than the temperature when the medium enters the second water inlet 104. In the embodiment of the present invention, a first intermediate pump 20 is further disposed between the second water outlet 103 and the third water inlet 301, and the first intermediate pump 20 mainly acts to pressurize the intermediate medium, so that the intermediate medium can circulate between the first sewage heat exchanger 10 and the first heat pump 30, thereby completing the heat transfer.
Specifically, the sixth water inlet 404 is communicated with the second heat pump 60 through the seventh water outlet 502, and is configured to transmit the medium performing heat exchange in the second heat pump 60 to the second sewage heat exchanger 40, and the sixth water outlet 403 is communicated with the second heat pump 60 through the seventh water inlet 501, and is configured to transmit the medium performing heat exchange in the second sewage heat exchanger 40 to the second heat pump 60, wherein the temperature of the medium entering the second sewage heat exchanger 40 through the sixth water inlet 404 is lower than the temperature of the regenerated sewage entering the second sewage heat exchanger 40 through the second water inlet, and based on this, the medium having a temperature difference and the regenerated sewage perform heat exchange in the second sewage heat exchanger 40, and after the medium flows out from the sixth water outlet 403, the temperature of the medium is higher than the temperature of the medium entering the sixth water inlet 404. In the embodiment of the present invention, a second intermediary pump 50 is further disposed between the sixth water outlet 403 and the seventh water inlet 501, and the second intermediary pump 50 mainly functions to pressurize the intermediary medium, so that the intermediary medium can circulate between the second sewage heat exchanger 40 and the second heat pump 60, thereby completing the heat transfer.
It should be noted that in the embodiment of the utility model, the water pipe that sets up in promotion pump station and heat pump system all adopts the anticorrosive steel pipe of plastic-coated, and steel pipe support adopts welded connection, buries ground direct-burried and lays etc..
Specifically, the fourth water outlet 303 and the eighth water outlet 503 are respectively communicated with a water inlet of the user end, and are used for transmitting the regenerated sewage heated by the first heat pump 30 and the second heat pump 60 to the user end; the fourth and eighth water inlets 304 and 504 are respectively in communication with the system load pump 70, and the system load pump 70 re-delivers the regenerated sewage at a reduced temperature from the user side to the first and second heat pumps 30 and 60 for heating. A fifth water outlet 402 provided on the second sewage heat exchanger 40 is used for transferring the regenerated sewage which is heat-exchanged and comes from the first sewage heat exchanger 10 into the municipal pipe network.
The heat pump system comprises two sewage heat exchangers, and can realize twice heat exchange on the sewage source, so that the temperature drop amplitude of the regenerated sewage is large, namely large heat can be extracted from the sewage, the heat utilization rate of the regenerated sewage source is increased, the heat supply capacity of the regenerated sewage source is improved, and the problem that the application of the existing regenerated sewage source is limited due to underutilization of low-level heat energy is solved; furthermore, the system arranges the lifting pump station 801 in the water storage tank 80, and the water storage tank 80 can play a role in adjusting the peak value and the valley value of the sewage on one hand; because the heat pump system adopts a two-stage heat exchange process, the capacity of the water storage system can be reduced, so that the construction investment of a sewage pump station is saved, and the working and using time of the water storage tank 80 is also prolonged.
The following describes in detail a regenerative sewage source heat pump system provided by an embodiment of the present invention with reference to fig. 1.
As shown in fig. 1, in the embodiment of the present invention, in order to control the flow rate of the regeneration sewage or the intermediate medium flowing into the first sewage heat exchanger 10, the first intermediate pump 20, the first heat pump 30, the system load pump 70, the second sewage heat exchanger 40, the second intermediate pump 50 and the second heat pump 60, and to avoid impurities from being carried by the recycled sewage and the intermediary medium flowing into the first sewage heat exchanger 10, the first heat pump 30, the system load pump 70, the second sewage heat exchanger 40 and the second heat pump 60, preferably, an inlet valve 903 and a filter 902 are arranged in front of the inlets of the first sewage heat exchanger 10, the first heat pump 30, the system load pump 70, the second sewage heat exchanger 40 and the second heat pump 60, respectively, outlet valves 903 are also provided at the water outlets of the first sewage heat exchanger 10, the first heat pump 30, the system load pump 70, the second sewage heat exchanger 40 and the second heat pump 60.
Specifically, an inlet valve 903 and a filter 902 are sequentially arranged between the first water inlet 101 and the lift pump station 801, an outlet valve 901, an inlet valve 903 and a filter 902 are sequentially arranged between the first water outlet 102 and the fifth water inlet 401, and it should be noted that the inlet valve 903 and the filter 902 arranged between the first water inlet 101 and the lift pump station 801 are positioned at a distance from the first water inlet 101 smaller than that of the lift pump, that is, the inlet valve 903 and the filter 902 are arranged close to the first water inlet 101. Further, the distance between the outlet valve 901 arranged between the first water outlet 102 and the fifth water inlet 401 and the first water outlet 102 is smaller than the distance between the outlet valve 901 and the fifth water inlet 401, and accordingly, the distance between the inlet valve 903 and the filter 902 and the fifth water inlet 401 is smaller than the distance between the inlet valve 102 and the fifth water outlet, that is, the outlet valve 901 is arranged close to the first water outlet 102, and the inlet valve 903 and the filter 902 are arranged close to the fifth water inlet 401.
Specifically, an outlet valve 901, an inlet valve 903 and a filter 902 are sequentially arranged between the second water outlet 103 and the third water inlet 301, and a filter 902, an outlet valve 901, an inlet valve 903 and a filter 902 are sequentially arranged between the third water outlet 302 and the second water inlet 104; it should be noted that the distance between the outlet valve 901 and the second water outlet 103, which are disposed between the second water outlet 103 and the third water inlet 301, is smaller than the distance between the outlet valve 901 and the second water outlet 103, and the distance between the inlet valve 903 and the filter 902 and the third water inlet 301 is smaller than the distance between the inlet valve 903 and the third water inlet 103, that is, the outlet valve 901 is disposed near the second water outlet 103, and the inlet valve 903 and the filter 902 are disposed near the third water inlet 301. Further, the distance between the outlet valve 901 and the filter 902 arranged between the third water outlet 302 and the second water inlet 104 is smaller than the distance between the outlet valve 302 and the second water inlet 104, and accordingly, the distance between the inlet valve 903 and the filter 902 and the second water inlet 104 is smaller than the distance between the outlet valve 302 and the third water outlet 302, i.e. the filter 902 and the outlet valve 901 are arranged close to the third water outlet 302, and the inlet valve 903 and the filter 902 are arranged close to the second water inlet 104.
Specifically, an outlet valve 901, an inlet valve 903 and a filter 902 are sequentially arranged between the sixth water outlet 403 and the seventh water inlet 501, and a filter 902, an outlet valve 901, a water inlet valve and a filter 902 are sequentially arranged between the seventh water outlet 502 and the sixth water inlet 404. It should be noted that the distance between the outlet valve 901 and the sixth water outlet 403 arranged between the sixth water outlet 403 and the seventh water inlet 501 is smaller than the distance between the outlet valve and the seventh water inlet 501, and the distance between the inlet valve 903 and the filter 902 and the seventh water inlet 501 is smaller than the distance between the inlet valve and the sixth water outlet 403, that is, the outlet valve 901 is arranged near the sixth water outlet 403, and the inlet valve 903 and the filter 902 are arranged near the seventh water inlet 501. Further, the distance between the filter 902 and the outlet valve 901 arranged between the seventh water outlet 502 and the sixth water inlet 404 and the seventh water outlet 502 is smaller than the distance between the sixth water inlet 404, and accordingly, the distance between the inlet valve and the filter 902 and the sixth water inlet 404 is smaller than the distance between the seventh water outlet 502, that is, the filter 902 and the outlet valve 901 are arranged near the seventh water outlet 502, and the inlet valve and the filter 902 are arranged near the sixth water inlet 404.
Specifically, a filter 902 and an outlet valve 903 are sequentially arranged between the fourth water outlet 303 and the user side water inlet, and a filter 902 and an outlet valve 901 are sequentially arranged between the eighth water outlet 503 and the user side water inlet; a filter 902 and an inlet valve 903 are sequentially arranged between the fourth water inlet 304 and the system load pump 70, and the filter 902 and the inlet valve 903 are sequentially arranged between the eighth water inlet 504 and the system load pump 70; an outlet valve 901 is provided between the fifth outlet port 402 and the municipal piping network. It should be noted that the distance between the filter 902 and the outlet valve 901, which are disposed between the fourth water outlet 303 and the water inlet of the user end, and the fourth outlet is smaller than the distance between the user end and the outlet; the distance between the filter 902 and the outlet valve 901 which are arranged between the eighth water outlet 503 and the water inlet of the user end and the eighth water outlet 503 is smaller than the distance between the filter 902 and the outlet valve 901 which are arranged between the user end and the user end, namely the filter 902 and the outlet valve 901 are respectively arranged close to the fourth water outlet 303 and the eighth water outlet 503; the distance between the filter 902 and the inlet valve 903 arranged between the fourth water inlet 304 and the system load pump 70 and the fourth water inlet 304 is smaller than the distance between the system load; the distance between the filter 902 and the inlet valve 903 arranged between the eighth water inlet 504 and the system load pump 70 and the eighth water inlet 504 is smaller than the distance to the system load, i.e. the filter 902 and the inlet valve 903 are arranged close to the fourth water inlet 304 and the eighth water inlet 504, respectively.
In the embodiment of the present invention, the first intermediate pump 20 disposed between the first sewage heat exchanger 10 and the first heat pump 30 is used for providing circulating power for the intermediate medium, and the intermediate medium disposed in the first intermediate pump 20 is water. Further, a second intermediate pump 50 is provided between the second sewage heat exchanger 40 and the second heat pump 60, and functions to provide circulating power for the intermediate medium. Because the temperature of the regeneration sewage that flows into in the second sewage heat exchanger 40 is less than the temperature of the regeneration sewage that flows into in the first sewage heat exchanger 10, if use intermediary's medium to carry out heat exchange for water in the second intermediary's pump 50, then probably influence regeneration sewage source heat pump system's normal work, in the embodiment of the utility model provides an, intermediary's medium in the second intermediary's pump 50 adopts 10% ethylene glycol, replaces water through adopting low concentration ethylene glycol solution promptly, can prove that second heat pump 60 is safe and reliable's operation under the low temperature state.
In the embodiment of the present invention, in order to avoid the suspended solids in the regenerated sewage from flowing into the heat pump system, preferably, the regenerated sewage source heat pump system further comprises a grid cleaner, which is disposed between the heat pump system and the lift pump station 801 for filtering the suspended solids in the regenerated sewage.
The embodiment of the utility model provides an in, this regeneration sewage source heat pump system is still including distribution pipe network and the pipe network that flows back, specifically, as shown in fig. 1, the distribution pipe network sets up between promotion pump station 801 and heat pump system, and the water inlet and the fifth delivery port 402 UNICOM of the pipe network that flows back for the regenerated sewage who has already drawn heat from fifth delivery port 402 discharges to in the municipal pipe network. It should be noted that, in the heat pump system, the first sewage heat exchanger 10, the first intermediate pump 20, the first heat pump 30, the system load pump 70, the second sewage heat exchanger 40, the second intermediate pump 50 and the second heat pump 60 are all connected by water pipes, and the type and material of the water pipes are not specifically limited.
The following describes in detail the working flow of the regenerative sewage source heat pump system provided by the embodiment of the present invention with reference to fig. 1.
As shown in fig. 1, set up the heat pump computer lab in each user's parcel, all set up heat pump system in the heat pump computer lab, the water pipe that gets into in the heat pump computer lab links to each other with the water pipe of first sewage heat exchanger 10 one side respectively, then connect through inlet valve 903 door and filter 902, the first water inlet 101 of first sewage heat exchanger 10 is reconnected, the regeneration sewage carries out cooling heat transfer 1 time in flowing into first sewage heat exchanger 10 through first water inlet 101 of first sewage heat exchanger 10, flow out in following first sewage heat exchanger 10 through first delivery port 102. In general, the temperature of the regeneration sewage is about 13 ℃ in winter, and the temperature may be lowered by 5 ℃ after the temperature drop by the primary side primary heat exchange of the first sewage heat exchanger 10, that is, the temperature may be lowered from 13 ℃ to 8 ℃ when the regeneration sewage passes through the first sewage heat exchanger 10.
The working process of the secondary side intermediate medium of the first sewage heat exchanger 10 is as follows: the medium after heat exchange from the first heat pump 30 enters the first sewage heat exchanger 10 from the second water inlet 104 through the outlet valve 901, the inlet valve 903 door and the second filter 902, the temperature of the medium when entering the second water inlet 104 is 5 ℃, the temperature of the medium after heat exchange on the secondary side of the first sewage heat exchanger 10 rises to 10 ℃, namely the temperature of the medium after passing through the first sewage heat exchanger 10 rises from 5 ℃ to 10 ℃, the medium after temperature rise is connected with the first medium pump 20 through the outlet valve 901 and the water outlet pipe, and then is connected with the water outlet pipe, the valve and the inlet filter 902 to be connected with the first heat pump 30 evaporator, and the medium is circularly transported to the first heat pump 30 through the first medium pump 20 to transfer heat. The extracted heat is transferred to the load side water system through the continuous work of the first heat pump 30 unit, and the system load water pump sends the heat to the user heating system. The first heat supply process of the heat pump system is completed through the circulation work.
The regenerated sewage discharged from the first outlet of the first sewage heat exchanger 10 flows into the second sewage heat exchanger 40 through the outlet valve 901 and the drain pipe, the regenerated sewage can be subjected to secondary heat exchange and temperature reduction in the second sewage heat exchanger 40, the regenerated sewage flows into the fifth water inlet 401 on the primary side of the second sewage heat exchanger 40, the regenerated sewage is subjected to heat exchange with the second sewage, the temperature of the regenerated sewage discharged from the fifth water outlet 402 of the second atomization heat exchanger is reduced to 3 ℃, and the temperature of the regenerated sewage is reduced from 8 ℃ to 3 ℃ in the second sewage heat exchanger 40, namely primary heat is released. The regenerated sewage after heat release is discharged from the fifth water outlet 402 of the second sewage heat exchanger 40, and flows into the municipal pipe network through the outlet valve 901 and the drain pipe.
The working process of the secondary side intermediate medium of the second sewage heat exchanger 40 is that, because the temperature of the intermediate medium after heat exchange from the second heat pump 60 is lower than 3 ℃, even to 0 ℃, if the conventional aqueous medium is still used for heat transfer, the normal work of the heat pump system is seriously influenced, and even the shutdown protection of the heat pump system is caused. Through the research on the heat pump system, the intermediary medium can be replaced by a low-concentration glycol solution, and after the intermediary side heat transfer medium adopts 10% glycol, the safe and reliable operation of the second heat pump 60 in a low-temperature state can be ensured. The glycol solution from the second heat pump 60 unit enters the second sewage heat exchanger 40 through the outlet valve 901, the inlet valve 903, and the filter 902 via the sixth water inlet 404, the temperature of the glycol solution entering the second sewage heat exchanger 40 is about 0 ℃, the temperature of the glycol solution after heat exchange by the second sewage heat exchanger 40 can be raised to 5 ℃, the glycol solution enters the second intermediate pump 50 through the sixth water outlet 403, the outlet valve 901, and the water outlet pipe, enters the second heat pump 60 through the water outlet pipe, the inlet valve 903, and the filter 902 connected to the second intermediate pump 50, the extracted heat is continuously transferred to the load side water system through the continuous operation of the second intermediate pump 50 and the second heat pump 60, and the heat is sent to each user heating system by the load circulation water pump, thereby completing the second heating process of the heat pump system. Through the combined work of the two systems, the working process of two-stage heat exchange and heating of the regenerated sewage source heat pump system is realized.
To sum up, the embodiment of the utility model provides a regeneration sewage source heat pump system, include: lifting a pump station and a heat pump system; the lifting pump station is arranged in the water storage tank and is used for conveying the regenerated sewage in the water storage tank into the heat pump system through a water pipe; the heat pump system comprises a first sewage heat exchanger, a first intermediate pump, a first heat pump, a system load pump, a second sewage heat exchanger, a second intermediate pump and a second heat pump; the first sewage heat exchanger comprises a first water inlet, a first water outlet, a second water inlet and a second water outlet; the first heat pump comprises a third water inlet, a third water outlet, a fourth water inlet and a fourth water outlet; the second sewage heat exchanger comprises a fifth water inlet, a fifth water outlet, a sixth water inlet and a sixth water outlet; the second heat pump comprises a seventh water inlet, a seventh water outlet, an eighth water inlet and an eighth water outlet; the first water inlet is communicated with the lifting pump station through the water pipe, and the first water outlet is communicated with the second sewage exchanger through the fifth water inlet; the second water inlet is communicated with the first heat pump through the third water outlet, the second water outlet is communicated with the first heat pump through the third water inlet, and the first intermediate pump is positioned between the second water outlet and the third water inlet; the sixth water inlet is communicated with the second heat pump through the seventh water outlet, the sixth water outlet is communicated with the second heat pump through the seventh water inlet, and the second intermediate pump is positioned between the sixth water outlet and the seventh water inlet; the fourth water outlet and the eighth water outlet are respectively communicated with a water inlet of a user side, the fourth water inlet and the eighth water inlet are respectively communicated with the system load pump, and the fifth water outlet is communicated with a municipal pipe network. The heat pump system comprises two sewage heat exchangers, and can realize twice heat exchange on the sewage source, so that the temperature drop amplitude of the regenerated sewage is large, namely large heat can be extracted from the sewage, the heat utilization rate of the regenerated sewage source is increased, the heat supply capacity of the regenerated sewage source is improved, and the problem that the application of the existing regenerated sewage source is limited due to underutilization of low-level heat energy is solved; furthermore, the system arranges the lifting pump station in a reservoir, and the reservoir can play a role in adjusting the peak value and the valley value of sewage on one hand; because the heat pump system adopts a two-stage heat exchange process, the capacity of the water storage system can be reduced, so that the construction investment of a sewage pump station is saved, and the working and using time of the reservoir is also prolonged.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. Regeneration sewage source heat pump system, its characterized in that includes: lifting a pump station and a heat pump system;
the lifting pump station is arranged in the water storage tank and is used for conveying the regenerated sewage in the water storage tank into the heat pump system through a water pipe;
the heat pump system comprises a first sewage heat exchanger, a first intermediate pump, a first heat pump, a system load pump, a second sewage heat exchanger, a second intermediate pump and a second heat pump;
the first sewage heat exchanger comprises a first water inlet, a first water outlet, a second water inlet and a second water outlet;
the first heat pump comprises a third water inlet, a third water outlet, a fourth water inlet and a fourth water outlet;
the second sewage heat exchanger comprises a fifth water inlet, a fifth water outlet, a sixth water inlet and a sixth water outlet;
the second heat pump comprises a seventh water inlet, a seventh water outlet, an eighth water inlet and an eighth water outlet;
the first water inlet is communicated with the lifting pump station through the water pipe, and the first water outlet is communicated with the second sewage exchanger through the fifth water inlet;
the second water inlet is communicated with the first heat pump through the third water outlet, the second water outlet is communicated with the first heat pump through the third water inlet, and the first intermediate pump is positioned between the second water outlet and the third water inlet;
the sixth water inlet is communicated with the second heat pump through the seventh water outlet, the sixth water outlet is communicated with the second heat pump through the seventh water inlet, and the second intermediate pump is positioned between the sixth water outlet and the seventh water inlet;
the fourth water outlet and the eighth water outlet are respectively communicated with a water inlet of a user side, the fourth water inlet and the eighth water inlet are respectively communicated with the system load pump, and the fifth water outlet is communicated with a municipal pipe network.
2. The heat pump system of claim 1, wherein the temperature of the regeneration waste water flowing into the first water inlet is higher than the temperature of the regeneration waste water flowing out of the first water outlet;
the temperature of the medium flowing into the second water inlet is lower than that of the medium flowing out of the second water outlet, and the temperature of the medium flowing out of the second water outlet is lower than that of the regenerated sewage flowing into the first water inlet;
the temperature of the regenerated sewage flowing into the fifth water inlet is higher than that of the regenerated sewage flowing out of the fifth water outlet, the temperature of the medium flowing into the sixth water inlet is lower than that of the medium flowing out of the sixth water outlet, and the temperature of the medium flowing out of the sixth water outlet is lower than that of the regenerated sewage flowing into the fifth water inlet.
3. The heat pump system of claim 1, wherein the heat pump system further comprises an inlet valve, an outlet valve, and a filter;
the inlet valve and the filter are sequentially arranged between the first water inlet and the lifting pump station, and the outlet valve, the inlet valve and the filter are sequentially arranged between the first water outlet and the fifth water inlet;
the outlet valve, the inlet valve and the filter are sequentially arranged between the second water outlet and the third water inlet, and the filter, the outlet valve, the inlet valve and the filter are sequentially arranged between the third water outlet and the second water inlet;
the outlet valve, the inlet valve and the filter are sequentially arranged between the sixth water outlet and the seventh water inlet, and the filter, the outlet valve, the inlet valve and the filter are sequentially arranged between the seventh water outlet and the sixth water inlet;
the filter and the outlet valve are sequentially arranged between the fourth water outlet and the user side water inlet, and the filter and the outlet valve are sequentially arranged between the eighth water outlet and the user side water inlet; the filter and the inlet valve are sequentially arranged between the fourth water inlet and the system load pump, and the filter and the inlet valve are sequentially arranged between the eighth water inlet and the system load pump; and the outlet valve is arranged between the fifth water outlet and the municipal pipe network.
4. The heat pump system of claim 1, wherein the intermediate medium disposed in the first intermediate pump is water and the intermediate medium disposed in the second intermediate pump is ethylene glycol.
5. The heat pump system of claim 1, further comprising a grid cleaner disposed between the heat pump system and the lift pump station for filtering suspended matter in the regeneration wastewater.
6. The heat pump system of claim 1, further comprising a water distribution network and a water return network;
the water distribution pipe network is arranged between the lifting pump station and the heat pump system;
and the water inlet of the water outlet pipe network is communicated with the fifth water outlet and is used for discharging the regenerated sewage which is subjected to heat extraction and comes from the fifth water outlet into the municipal pipe network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921908994.1U CN211204497U (en) | 2019-11-07 | 2019-11-07 | Regenerative sewage source heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921908994.1U CN211204497U (en) | 2019-11-07 | 2019-11-07 | Regenerative sewage source heat pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211204497U true CN211204497U (en) | 2020-08-07 |
Family
ID=71856725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921908994.1U Active CN211204497U (en) | 2019-11-07 | 2019-11-07 | Regenerative sewage source heat pump system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211204497U (en) |
-
2019
- 2019-11-07 CN CN201921908994.1U patent/CN211204497U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108930995A (en) | A kind of central heating system of solar energy and low-grade industrial exhaust heat united heat | |
| CN204513538U (en) | A kind of regional cooling and heating system | |
| CN211204497U (en) | Regenerative sewage source heat pump system | |
| CN202485278U (en) | Hot spring bathing pool heat energy recycling system | |
| CN208253697U (en) | A kind of geothermal heating operating system of accumulation of heat and multistage terminal user's combined heat | |
| CN214332857U (en) | Hot water supply system | |
| CN105674377A (en) | Main-auxiliary type multi-heat-source series-connection grid-connected heating device | |
| CN210179734U (en) | Heat exchange unit with heat pump temperature regulation and control function | |
| CN210411931U (en) | Water-saving device for water purification and circulation | |
| CN210197760U (en) | Medium-deep geothermal water utilization system | |
| CN208442984U (en) | A kind of water source bus type application system | |
| CN218379563U (en) | Large-temperature-difference heat exchange unit and heat exchange system | |
| CN206522833U (en) | A kind of new injection type heat-exchange unit | |
| CN201582558U (en) | Floating tank system of thermal pump station of intermediate station | |
| CN217274459U (en) | Heating radiator and floor heating series heat supply unit | |
| CN210740506U (en) | Heat exchange unit | |
| CN211177032U (en) | Geothermal heating pipeline system | |
| CN213931119U (en) | Distributed multi-point heat extraction and reuse system | |
| CN219014432U (en) | Condensed water heating system | |
| CN214094443U (en) | High-efficient flash vessel exhaust steam recovery plant surely arranges based on energy multilevel utilization | |
| CN216244561U (en) | Heat pump energy storage balance water mixing unit | |
| CN202547223U (en) | Control device for automatically distributing host machine hot water and heat pump heat of ground source heat pump system | |
| CN215982764U (en) | Energy-saving low-resistance heat exchange unit | |
| CN210717919U (en) | Condensed water recycling device | |
| CN212644905U (en) | Sewage source heat pump machine room cold supply, heat supply and domestic hot water supply integrated module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Regenerative sewage source heat pump system Effective date of registration: 20210806 Granted publication date: 20200807 Pledgee: Xi'an Yongcheng Financing Guarantee Co.,Ltd. Pledgor: Silian Intelligent Technology Co.,Ltd. Registration number: Y2021980007372 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220810 Granted publication date: 20200807 Pledgee: Xi'an Yongcheng Financing Guarantee Co.,Ltd. Pledgor: Silian Intelligent Technology Co.,Ltd. Registration number: Y2021980007372 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Regenerated sewage source heat pump system Effective date of registration: 20220816 Granted publication date: 20200807 Pledgee: Xi'an Yongcheng Financing Guarantee Co.,Ltd. Pledgor: Silian Intelligent Technology Co.,Ltd. Registration number: Y2022610000492 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230911 Granted publication date: 20200807 Pledgee: Xi'an Yongcheng Financing Guarantee Co.,Ltd. Pledgor: Silian Intelligent Technology Co.,Ltd. Registration number: Y2022610000492 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Regenerated sewage source heat pump system Effective date of registration: 20230914 Granted publication date: 20200807 Pledgee: Xi'an Yongcheng Financing Guarantee Co.,Ltd. Pledgor: Silian Intelligent Technology Co.,Ltd. Registration number: Y2023610000678 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |