CN220038584U - Heating system for coupling medium-deep underground heat exchange with main pipe network backwater waste heat - Google Patents
Heating system for coupling medium-deep underground heat exchange with main pipe network backwater waste heat Download PDFInfo
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- CN220038584U CN220038584U CN202321174866.5U CN202321174866U CN220038584U CN 220038584 U CN220038584 U CN 220038584U CN 202321174866 U CN202321174866 U CN 202321174866U CN 220038584 U CN220038584 U CN 220038584U
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- 239000002918 waste heat Substances 0.000 title claims abstract description 31
- 230000008878 coupling Effects 0.000 title claims abstract description 21
- 238000010168 coupling process Methods 0.000 title claims abstract description 21
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 21
- 238000010438 heat treatment Methods 0.000 title claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 229910052799 carbon Inorganic materials 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003673 groundwater Substances 0.000 description 3
- 238000005338 heat storage Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of heat supply, in particular to a heat supply system for coupling medium-deep underground heat exchange with main pipe network backwater waste heat, which comprises a medium-deep underground heat exchanger, a municipal main pipe network backwater pipe, a heat pump host, a plate heat exchanger and a heat user, wherein a first pipeline is fixedly arranged at the output end of the medium-deep underground heat exchanger, a second pipeline is fixedly arranged at the input end of the medium-deep underground heat exchanger, and one side of the first pipeline is fixedly arranged with the input end of the heat pump host. The utility model has the advantages that: according to the heat supply system, through the arrangement of the plate heat exchanger and the first connecting pipe, the waste heat of backwater in the backwater pipe of the municipal main pipe network can be utilized, a low-temperature heat source is provided for a heat pump host under the cooperation of the middle-deep underground heat exchanger, and the energy utilization rate of the system can be improved by the technology of coupling the underground heat exchange of the middle-deep geothermal heat and the waste heat of backwater of the municipal main pipe network, so that green, low-carbon and energy-saving heat supply can be realized.
Description
Technical Field
The utility model relates to the technical field of heat supply, in particular to a heat supply system for coupling medium-deep underground heat exchange with main pipe network backwater waste heat.
Background
Geothermal energy is used as an important clean renewable energy source, and has the advantages of wide distribution, abundant reserves, safety, high quality, stable energy supply and the like. The underground heat exchange technology of the middle-deep geothermal heat is a key means for developing the middle-deep heat storage. Cogeneration central heating faces the problems of high heat supply energy consumption and serious environmental pollution. The heat and electricity cogeneration central heating system utilizing the waste heat has lower operation cost than the large-scale coal-fired boiler for heating, gas heating and electric heating. If the heat supply capacity is increased without increasing the consumption of coal, the waste heat can be fully utilized, the heating requirement of the current northern area can be basically met, and the energy saving and emission reduction effects are obvious. Therefore, the research on the utilization technology of the cogeneration backwater is necessary. Considering the current situation of urban heat supply development, if resources such as cogeneration waste heat and the like exist around the city, the medium-deep geothermal energy can be combined, and the heating requirement of urban building can be met by means of the multi-energy coupling heat supply technology such as 'geothermal +'.
In this regard, the utility model provides a heating system for coupling the medium-deep underground heat exchange with the main pipe network backwater waste heat, which is used for solving the problem.
Disclosure of Invention
The object of the present utility model is to solve at least one of the technical drawbacks.
Therefore, an object of the present utility model is to provide a heating system for coupling the medium-deep underground heat exchange with the backwater waste heat of the main pipe network, so as to solve the problems mentioned in the background art and overcome the defects existing in the prior art.
In order to achieve the above purpose, an embodiment of an aspect of the present utility model provides a heating system for coupling a medium-deep downhole heat exchange with a main pipe network backwater waste heat, which includes a medium-deep downhole heat exchanger, a municipal main pipe network backwater pipe, a heat pump host, a plate heat exchanger and a heat user, wherein the output end of the medium-deep downhole heat exchanger is fixedly provided with a first pipeline, the input end of the medium-deep downhole heat exchanger is fixedly provided with a second pipeline, one side of the first pipeline is fixedly installed with the input end of the heat pump host, and one side of the second pipeline is fixedly installed with the output end of the heat pump host;
a third pipeline is fixedly arranged on one side of the first pipeline, a fourth pipeline is fixedly arranged on one side of the second pipeline, and one sides of the third pipeline and the fourth pipeline are connected with the plate heat exchanger;
a fifth pipeline is fixedly arranged on one side of the first pipeline, a sixth pipeline is fixedly arranged on one side of the second pipeline, and one sides of the fifth pipeline and the sixth pipeline are connected with the plate heat exchanger;
two first connecting pipes are fixedly arranged on one side of the plate heat exchanger, one side of each of the two first connecting pipes is fixedly arranged with a municipal main pipe net return pipe, two second connecting pipes are fixedly arranged on one side of the plate heat exchanger, and one sides of the two second connecting pipes are fixedly arranged with heat users;
two third connecting pipes are fixedly arranged on one side of the heat pump host, and heat users are fixedly arranged on one sides of the two third connecting pipes.
The technical effect achieved by adopting the scheme is as follows: through the coupling utilization of the heat exchange in the middle and deep layer underground and the municipal large pipe network backwater waste heat, the environment-friendly, low-carbon and energy-saving heat supply is realized.
By any of the above schemes, preferably, the middle part of the first pipeline is fixedly provided with a first valve, and the middle part of the second pipeline is fixedly provided with a second valve.
By any of the above schemes, preferably, the middle part of the third pipeline is fixedly provided with a third valve, and the middle part of the fourth pipeline is fixedly provided with a fourth valve.
By any of the above schemes, preferably, a fifth valve is fixedly installed in the middle of the fifth pipeline, and a sixth valve is fixedly installed in the middle of the sixth pipeline.
In any of the above embodiments, preferably, a seventh valve is fixedly installed at the middle of each of the two first connection pipes.
By any of the above schemes, preferably, the middle parts of the two second connecting pipes are fixedly provided with an eighth valve.
In any of the above embodiments, preferably, a ninth valve is fixedly installed at the middle of each of the two third connection pipes.
The technical effect achieved by adopting the scheme is as follows: the working mode of the system is adjusted by switching on and off the corresponding valve.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
according to the heat supply system, through the arrangement of the plate heat exchanger and the first connecting pipe, the waste heat of backwater in the municipal main pipe network backwater pipe can be utilized, a low-temperature heat source is provided for a heat pump host under the cooperation of the middle-deep underground heat exchanger, the utilization rate of energy sources of the system can be improved through the coupling utilization technology of the middle-deep underground geothermal heat exchange and the municipal main pipe network backwater waste heat, the environment-friendly, low-carbon and energy-saving heat supply is realized, the problem that the high-temperature backwater of the traditional municipal main pipe network cannot be effectively utilized is solved, the efficiency of the heat pump host is improved, the utilization efficiency of renewable energy sources such as geothermal heat can be further improved, the environment-friendly and low-carbon application of the heat supply industry is realized, the carbon emission is effectively reduced, and the practicability of the system is ensured.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic diagram of a system structure according to an embodiment of the present utility model.
In the figure: 1-a mid-deep downhole heat exchanger, 11-a first pipeline, 12-a second pipeline, 13-a third pipeline, 14-a fourth pipeline, 15-a fifth pipeline, 16-a sixth pipeline, 17-a first valve, 18-a second valve, 19-a third valve, 110-a fourth valve, 111-a fifth valve, 112-a sixth valve, 2-a municipal main pipe network return pipe, 3-a heat pump host, 31-a third connecting pipe, 32-a ninth valve, 4-a plate heat exchanger, 41-a first connecting pipe, 42-a second connecting pipe, 43-a seventh valve, 44-an eighth valve, 5-a heat user.
Detailed Description
Examples: as shown in fig. 1, a heating system for coupling medium deep underground heat exchange and main pipe network backwater waste heat comprises a medium deep underground heat exchanger 1, a municipal main pipe network backwater pipe 2, a heat pump host 3, a plate heat exchanger 4 and a heat user 5, wherein a loop capable of enabling a heat exchange medium to circulate in the ground and underground is formed in a heat storage layer in a manual drilling mode, the heat exchange medium is returned to the ground for use after absorbing heat of the underground heat storage layer, heat is released and then returns to underground for heat absorption, the reciprocating circulation is performed, the whole heat exchange process does not produce groundwater, groundwater loss and pollution are not caused, the problems of difficult recharging, groundwater serial layers and the like are avoided, the municipal large pipe network backwater waste heat is effectively utilized through the plate heat exchanger 4, the efficiency of the medium deep underground heat exchange system is improved, green, low carbon and energy-saving heat supply is realized, the output end of the medium deep underground heat exchanger 1 is fixedly provided with a first pipeline 11, the input end of the medium deep underground heat exchanger 1 is fixedly provided with a second pipeline 12, one side of the first pipeline 11 is fixedly arranged with the input end of the heat pump host 3, one side of the second pipeline 12 is fixedly arranged with the output end of the heat pump host 3, the medium underground heat exchanger 3 is fixedly arranged with the corresponding heat exchange pipe network backwater pipe 3, the heat exchange pipeline 3 is not required to be arranged in the corresponding heat exchange pipe network 2, the corresponding heat exchange pipeline is arranged in the main pipe 3, the heat exchange pipeline is not mature part of the main pipe is further arranged, and the heat exchange pipeline is not in the corresponding heat circulation pipeline is provided with the main pipe 3, and the heat pipeline is further mature heat circulation pipeline is provided with a heat pipeline is provided with a corresponding heat pipeline circulation pipeline, and has a mature technology is provided with a special utility model;
a third pipeline 13 is fixedly arranged on one side of the first pipeline 11, a fourth pipeline 14 is fixedly arranged on one side of the second pipeline 12, one sides of the third pipeline 13 and the fourth pipeline 14 are connected with the plate heat exchanger 4, a fifth pipeline 15 and a sixth pipeline 16 can be further deleted, the third pipeline 13 and the fourth pipeline 14 can replace the fifth pipeline 15 and the sixth pipeline 16 to work, and the third pipeline 13 and the fourth pipeline 14 can be mutually used as standby pipelines of each other in a reserved state, and detailed description is omitted;
a fifth pipeline 15 is fixedly arranged on one side of the first pipeline 11, a sixth pipeline 16 is fixedly arranged on one side of the second pipeline 12, and one sides of the fifth pipeline 15 and the sixth pipeline 16 are connected with the plate heat exchanger 4;
two first connecting pipes 41 are fixedly arranged on one side of the plate heat exchanger 4, one side of each first connecting pipe 41 is fixedly arranged with the municipal main pipe network water return pipe 2, two second connecting pipes 42 are fixedly arranged on one side of the plate heat exchanger 4, and one side of each second connecting pipe 42 is fixedly arranged with the heat user 5;
two third connecting pipes 31 are fixedly arranged on one side of the heat pump host 3, and a heat user 5 is fixedly arranged on one side of each of the two third connecting pipes 31.
The middle part of the first pipeline 11 is fixedly provided with a first valve 17, and the middle part of the second pipeline 12 is fixedly provided with a second valve 18.
The middle part fixed mounting of third pipeline 13 has third valve 19, the middle part fixed mounting of fourth pipeline 14 has fourth valve 110, the heating initial stage, open third valve 19, fourth valve 110 carries out the heat exchange through plate heat exchanger 4, then open two eighth valves 44 and carry heat to heat user 5 through one of them second connecting pipe 42, the heat exchange is back to plate heat exchanger 4 through another second connecting pipe 42 again and continues the thermal cycle, other valves in this process are in the closed condition, because the municipal administration heat supply temperature is not high in the heating initial stage, so return water temperature also can not be very high, the use value is not big, so the return water temperature in the municipal administration large pipe network 2 is not adopted in the heating initial stage.
A fifth valve 111 is fixedly installed in the middle of the fifth pipe 15, and a sixth valve 112 is fixedly installed in the middle of the sixth pipe 16, and the middle heating period can be divided into two cases: firstly, the first valve 17 is opened, the second valve 18 provides a low-temperature heat source for the heat pump host 3, the heat pump host 3 is used for heating the tail end heat user 5 through the ninth valve 32 after the temperature is increased, and at the moment, other valves are closed; the fifth valve 111, the sixth valve 112 and the two seventh valves 43 are opened, heat exchange is carried out through the plate heat exchanger 4 by utilizing the waste heat of the municipal main pipe network water return pipe 2, the water after heat exchange is mixed with the water supplied by the deep-medium underground heat exchanger 1 to provide a low-temperature heat source for the heat pump host 3, the first valve 17, the second valve 18, the fifth valve 111 and the sixth valve 112 are opened to supply heat for the tail end heat user 5, and other valves are closed at the moment.
A seventh valve 43 is fixedly arranged in the middle of each first connecting pipe 41, and in the later heating period, the two seventh valves 43 and the eighth valve 44 can be opened, and the waste heat of the municipal main pipe network water return pipe 2 is utilized to supply heat to the tail end heat user 5 through the plate heat exchanger 2.
An eighth valve 44 is fixedly installed at the middle of each of the two second connection pipes 42.
A ninth valve 32 is fixedly installed at the middle parts of the two third connection pipes 31.
A heating system for coupling medium-deep layer underground heat exchange with main pipe network backwater waste heat has the following working principle:
1) In the initial stage of heating, the third valve 19 and the fourth valve 110 are opened to exchange heat through the plate heat exchanger 4, then two eighth valves 44 are opened to convey heat to the heat user 5 through one of the second connecting pipes 42, and after heat exchange, the heat returns to the plate heat exchanger 4 through the other second connecting pipe 42 to continue heat circulation;
2) The mid-heating period can be divided into two cases: firstly, the first valve 17 is opened, the second valve 18 provides a low-temperature heat source for the heat pump host 3, the heat pump host 3 is used for heating the tail end heat user 5 through the ninth valve 32 after the temperature is increased, and at the moment, other valves are closed; the second valve is opened, the fifth valve 111, the sixth valve 112 and the two seventh valves 43 are used for exchanging heat by utilizing the waste heat of the municipal main pipe network water return pipe 2 through the plate heat exchanger 4, the exchanged water and the water supply of the middle-deep underground heat exchanger 1 are mixed together to provide a low-temperature heat source for the heat pump host 3, and the first valve 17, the second valve 18, the fifth valve 111 and the sixth valve 112 are opened to provide heat for the tail end heat user 5;
3) In the later stage of heating, two seventh valves 43 and eighth valves 44 can be opened, and the waste heat of the municipal main pipe network water return pipe 2 is utilized to supply heat to the terminal heat user 5 through the plate heat exchanger 2.
Compared with the prior art, the utility model has the following beneficial effects compared with the prior art:
according to the heat supply system, through the arrangement of the plate heat exchanger 4 and the first connecting pipe 41, the backwater waste heat in the municipal main pipe network backwater pipe 2 can be utilized, a low-temperature heat source is provided for the heat pump host 3 under the cooperation of the middle-deep underground heat exchanger 1, the energy utilization rate of the system can be improved through the coupling utilization technology of the middle-deep underground geothermal heat exchange and the municipal large pipe network backwater waste heat, the environment-friendly, low-carbon and energy-saving heat supply is realized, the problem that the high-temperature backwater of the traditional municipal large pipe network cannot be effectively utilized is solved, the efficiency of the heat pump host is improved, the utilization efficiency of renewable energy sources such as geothermal energy can be further improved, the environment-friendly and low-carbon application in the heat supply industry is realized, the carbon emission is effectively reduced, and the practicability of the system is ensured.
Claims (7)
1. A heating system for coupling medium-deep underground heat exchange with main pipe network backwater waste heat is characterized in that: the heat pump system comprises a middle-deep underground heat exchanger (1), a municipal main pipe network water return pipe (2), a heat pump host (3), a plate heat exchanger (4) and a heat user (5), wherein a first pipeline (11) is fixedly arranged at the output end of the middle-deep underground heat exchanger (1), a second pipeline (12) is fixedly arranged at the input end of the middle-deep underground heat exchanger (1), one side of the first pipeline (11) is fixedly arranged with the input end of the heat pump host (3), and one side of the second pipeline (12) is fixedly arranged with the output end of the heat pump host (3);
a third pipeline (13) is fixedly arranged on one side of the first pipeline (11), a fourth pipeline (14) is fixedly arranged on one side of the second pipeline (12), and one sides of the third pipeline (13) and the fourth pipeline (14) are connected with the plate heat exchanger (4);
a fifth pipeline (15) is fixedly arranged on one side of the first pipeline (11), a sixth pipeline (16) is fixedly arranged on one side of the second pipeline (12), and one sides of the fifth pipeline (15) and the sixth pipeline (16) are connected with the plate heat exchanger (4);
two first connecting pipes (41) are fixedly arranged on one side of the plate heat exchanger (4), one side of each of the two first connecting pipes (41) is fixedly arranged with a municipal main pipe network water return pipe (2), two second connecting pipes (42) are fixedly arranged on one side of the plate heat exchanger (4), and one side of each of the two second connecting pipes (42) is fixedly arranged with a heat user (5);
two third connecting pipes (31) are fixedly arranged on one side of the heat pump host (3), and heat users (5) are fixedly arranged on one sides of the two third connecting pipes (31).
2. The heating system for coupling medium-deep underground heat exchange with main pipe network backwater waste heat according to claim 1, wherein: the middle part of the first pipeline (11) is fixedly provided with a first valve (17), and the middle part of the second pipeline (12) is fixedly provided with a second valve (18).
3. The heating system for coupling medium-deep underground heat exchange with main pipe network backwater waste heat according to claim 2, wherein: the middle part of the third pipeline (13) is fixedly provided with a third valve (19), and the middle part of the fourth pipeline (14) is fixedly provided with a fourth valve (110).
4. A heating system for coupling medium-deep well heat exchange with main pipe network backwater waste heat according to claim 3, wherein: a fifth valve (111) is fixedly arranged in the middle of the fifth pipeline (15), and a sixth valve (112) is fixedly arranged in the middle of the sixth pipeline (16).
5. The heating system for coupling medium-deep underground heat exchange with main pipe network backwater waste heat according to claim 4, wherein: a seventh valve (43) is fixedly arranged at the middle parts of the two first connecting pipes (41).
6. The heating system for coupling medium-deep underground heat exchange with main pipe network backwater waste heat according to claim 5, wherein: an eighth valve (44) is fixedly arranged at the middle parts of the two second connecting pipes (42).
7. The heating system for coupling medium-deep underground heat exchange with main pipe network backwater waste heat according to claim 6, wherein: a ninth valve (32) is fixedly arranged at the middle parts of the two third connecting pipes (31).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321174866.5U CN220038584U (en) | 2023-05-16 | 2023-05-16 | Heating system for coupling medium-deep underground heat exchange with main pipe network backwater waste heat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321174866.5U CN220038584U (en) | 2023-05-16 | 2023-05-16 | Heating system for coupling medium-deep underground heat exchange with main pipe network backwater waste heat |
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| CN220038584U true CN220038584U (en) | 2023-11-17 |
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| CN202321174866.5U Active CN220038584U (en) | 2023-05-16 | 2023-05-16 | Heating system for coupling medium-deep underground heat exchange with main pipe network backwater waste heat |
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| CN (1) | CN220038584U (en) |
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2023
- 2023-05-16 CN CN202321174866.5U patent/CN220038584U/en active Active
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