CN220911521U - Ground source heat pump heating system - Google Patents
Ground source heat pump heating system Download PDFInfo
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- CN220911521U CN220911521U CN202322570231.3U CN202322570231U CN220911521U CN 220911521 U CN220911521 U CN 220911521U CN 202322570231 U CN202322570231 U CN 202322570231U CN 220911521 U CN220911521 U CN 220911521U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 120
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 299
- 238000001914 filtration Methods 0.000 claims abstract description 80
- 239000004576 sand Substances 0.000 claims abstract description 29
- 235000020681 well water Nutrition 0.000 claims abstract description 21
- 239000002349 well water Substances 0.000 claims abstract description 21
- 238000011084 recovery Methods 0.000 claims abstract description 18
- 239000002918 waste heat Substances 0.000 claims abstract description 17
- 230000001502 supplementing effect Effects 0.000 claims abstract description 16
- 239000008236 heating water Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 6
- 239000008399 tap water Substances 0.000 claims description 5
- 235000020679 tap water Nutrition 0.000 claims description 5
- 239000012535 impurity Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 230000002262 irrigation Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a ground source heat pump heating system. Comprises a geothermal well; the cyclone sand remover and the well water pressurizing pump are arranged on the cyclone sand remover, the well water pressurizing pump is connected with a heating heat exchange device, and the heating heat exchange device is connected with a front filtering device; a heating device is connected to the secondary side of the heating heat exchange device; a water outlet of the front filtering device is connected with a waste heat recovery device; the water outlet of the waste heat recovery device is connected with a rear filtering device, and the water outlet of the rear filtering device is connected to a tail water discharge port of the geothermal well; the water supplementing device is also included; the waste heat recovery device comprises a tail water heat exchanger connected with a water outlet of the front filtering device; the system also comprises a heat pump device and an intermediate circulating pump which are connected with the tail water heat exchanger, and a water circulating pump and a domestic water tank which are connected with the heat pump device. The utility model can stably and efficiently recycle the heat in the geothermal water, and filter and heat recycle the tail water, thereby improving the overall heat utilization efficiency of the system.
Description
Technical Field
The utility model belongs to the technical field of geothermal facilities, and particularly relates to a ground source heat pump heating system.
Background
Geothermal energy is taken as energy stored in the earth and belongs to renewable energy, and the geothermal heat-taking system is a heating system which extracts geothermal heat energy and applies the heat energy to a heating system to be used as a heat source for heating and supplying heat.
The geothermal heating station should be designed to utilize the heat energy in the geothermal water source as much as possible, that is, to fully utilize the heat energy in the geothermal water source, which is helpful to improve the operation efficiency of the geothermal heating system, reduce the operation cost and improve the operation income.
However, the existing geothermal heating system only can utilize a part of heat energy in geothermal water sources, namely, the geothermal water is usually directly recharged after heat exchange, the recharged tail water usually still has higher temperature and contains waste heat energy, and the direct recharging operation of the tail water can lead to waste of heat energy, so that the overall heat utilization efficiency of the geothermal heating system is lower; in addition, the ground source hot water is easy to generate particulate impurities in the heat exchange process, the existing geothermal heating system cannot perform filtering operation on tail water, and in the long-time recharging process, the tail water containing the particulate impurities is easy to block related pipelines, and even affects the irrigation process of the ground source hot water.
Disclosure of utility model
The utility model provides a ground source heat pump heating system with reasonable structural design for solving the technical problems in the prior art. The utility model can stably and efficiently recycle the heat in the geothermal water, and filter and heat recycle the tail water, thereby improving the overall heat utilization efficiency of the system.
The utility model adopts the technical proposal for solving the technical problems in the prior art that: the ground source heat pump heating system comprises a ground heating well; a rotational flow sand remover and a well water pressurizing pump are arranged on a geothermal well water output pipeline of the geothermal well, a heating heat exchange device is connected to a water outlet of the well water pressurizing pump, a primary side water supply port of the heating heat exchange device is connected to the well water pressurizing pump, and a primary side water return port of the heating heat exchange device is connected with a front filtering device; a secondary side water supply port of the heating heat exchange device is connected with a heating device, and a water outlet of the heating device is connected with a secondary side water return port of the heating heat exchange device; a water outlet of the front filtering device is connected with a waste heat recovery device; the water outlet of the waste heat recovery device is connected with a rear filtering device, and the water outlet of the rear filtering device is connected to a tail water discharge port of the geothermal well; the water supplementing device is used for supplementing water to the heating heat device and the waste heat recovery device; the waste heat recovery device comprises a tail water heat exchanger connected with a water outlet of the front filtering device, a primary water supply port of the tail water heat exchanger is connected with the water outlet of the front filtering device, and a primary water return port of the tail water heat exchanger is connected with a water inlet of the rear filtering device; the system also comprises a heat pump device and an intermediate circulating pump which are connected with the tail water heat exchanger, and a water circulating pump and a domestic water tank which are connected with the heat pump device.
The utility model has the advantages and positive effects that: the utility model provides a ground source heat pump heating system, which can collect heat in geothermal water pumped from a geothermal well by arranging a heating heat exchange device and provide the collected heat for a heating device, thereby achieving the purpose of heating by utilizing geothermal water; by arranging the front filtering device and the rear filtering device, the tail water of the geothermal water can be filtered before recharging, so that the influence on the irrigation process of the geothermal water caused by the blockage of the related pipelines by particle impurities in the tail water is avoided; through setting up tail water heat exchanger, heat pump device and intermediate circulation pump, can gather the heat in the geothermal water tail water, through setting up water circulation pump and the domestic water tank that is connected with heat pump device's condenser, the domestic water in the usable heat pump device heat domestic water tank that collects makes things convenient for people's daily use, and then has improved ground source heat pump heating system's whole heat utilization efficiency.
Preferably: the front filtering device comprises a filtering tank, a lower filtering assembly and an upper filtering assembly, wherein the upper part of the filtering tank is provided with a filtering water inlet, the lower part of the filtering tank is provided with a filtering water outlet, the lower part of the inner cavity of the filtering tank is provided with a filtering filler, and the lower filtering assembly and the upper filtering assembly are arranged above the filtering filler; the device also comprises a scraper rotating shaft arranged in the inner cavity of the filter tank, wherein a lower scraper for cleaning the lower filter assembly and an upper scraper for cleaning the upper filter assembly are arranged on the scraper rotating shaft; the rotary driving piece is used for driving the scraper rotating shaft to rotate; the structure of the rear filter device is identical to that of the front filter device.
Preferably: the upper filter assembly comprises an orifice plate mounting ring connected with the filter tank, a filter orifice plate is mounted on the orifice plate mounting ring, a stepped mounting notch is formed in the filter orifice plate, a sand collecting draining basket is inserted at the mounting notch, and a lifting rod is mounted on the sand collecting draining basket.
Preferably: the structure of the upper filtering component is consistent with that of the lower filtering component, and a mounting connecting rod for connecting the upper filtering component and the lower filtering component is arranged between the sand collecting draining basket which are correspondingly arranged up and down.
Preferably: the evaporator inlet of the heat pump device is connected to the secondary side water supply port of the tail water heat exchanger through a pipeline and an intermediate circulating pump, and the evaporator outlet of the heat pump device is connected to the secondary side water return port of the tail water heat exchanger; the condenser inlet of the heat pump device is connected with the domestic water tank through a pipeline and a water circulating pump, and the condenser outlet of the heat pump device is connected with the domestic water tank; a water mixing valve is arranged at a hot water outlet of the water tank for living and is connected with a water supplementing device through a cold water pipeline.
Preferably: the heating heat exchange device comprises at least three groups of heating heat exchangers which are arranged in parallel, primary side water supply ports of the heating heat exchangers are all connected with a conveying pipeline connected with a water outlet of the well water pressurizing pump, and primary side water return ports of the heating heat exchangers are connected to a water inlet of the front filtering device in a converging mode.
Preferably: the heating device comprises a plurality of groups of heating users, the secondary side water supply ports of the heating heat exchanger are connected in a converging way and then are respectively connected with the water inlets of the plurality of groups of heating users, the water outlets of the heating users are respectively provided with a dirt remover and a heating circulating pump, and the water outlets of the heating circulating pumps are connected in a converging way and then are respectively connected with the secondary side water return ports of the heating heat exchanger.
Preferably: the water replenishing device comprises a water softening device and a water replenishing water tank, and a water inlet of the water softening device is connected with a tap water source through a pipeline; the water replenishing water tank is provided with a water inlet and two water outlets, the water inlet of the water replenishing water tank is connected with the water outlet of the water softening device through a pipeline, and the water outlet of the water replenishing water tank is connected with the water inlet of the intermediate circulating pump through a pipeline; the other water outlet of the water replenishing tank is connected with a plurality of groups of heating water replenishing pumps, and the water outlet of each heating water replenishing pump is respectively connected with the secondary side water return port of each heating heat exchanger.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a front filter assembly of the present utility model in a front cross-sectional configuration;
fig. 3 is a schematic perspective view of an upper filter assembly in the present front filter device.
In the figure: 1. a geothermal well; 2. a cyclone desander; 3. a well water pressurizing pump; 4. a heating heat exchanger; 5. heating a user; 6. a dirt remover; 7. a heating circulation pump; 8. a pre-filtration device; 8-1, mounting a base; 8-2, a sewage drain pipe; 8-3, filtering the tank; 8-4, filtering filler; 8-5, lower mounting ring; 8-6, mounting a ring; 8-7, filtering the water inlet; 8-8, rotating the driving member; 8-9, lifting rods; 8-10, scraping the upper scraper; 8-11, upper filtering component; 8-11-1, orifice plate collar; 8-11-2, a filter pore plate; 8-11-3, a sand collecting and draining basket; 8-12, a scraper rotating shaft; 8-13, lower scraper; 8-14, a lower filtering component; 8-15, installing a connecting rod; 8-16, filtering a water outlet; 9. a recharging pump; 10. a post-filtration device; 11. a tail water heat exchanger; 12. a heat pump device; 13. an intermediate circulation pump; 14. using a water circulation pump; 15. a domestic water tank; 16. a water mixing valve; 17. a water softening device; 18. a water replenishing tank; 19. and a heating water supplementing pump.
Detailed Description
For a further understanding of the utility model, its features and advantages, the following examples are set forth in detail:
Referring to fig. 1, the ground source heat pump heating system of the present utility model includes a geothermal well 1, and a cyclone sand remover 2 and a well water booster pump 3 are installed on a geothermal well water output pipe of the geothermal well 1. The water inlet of the cyclone sand remover 2 is connected with the water outlet of the geothermal well 1 through a liquid pipeline, the water outlet of the cyclone sand remover 2 is connected with the water inlet of the well water booster pump 3 through a liquid pipeline, and the well water booster pump 3 is at least two groups of booster pumps connected in parallel, so that the purpose of mutual standby is realized.
A water outlet of the well water pressurizing pump 3 is connected with a heating heat exchange device, and a primary side water supply port of the heating heat exchange device is connected to the well water pressurizing pump 3. In this embodiment, the heating heat exchange device includes at least three sets of heating heat exchangers 4 arranged in parallel, and in this embodiment, the heating heat exchangers 4 are plate heat exchangers. The primary water supply ports of the heating heat exchanger 4 are connected with a conveying pipeline connected with the water outlet of the well water booster pump 3.
By providing the heating heat exchanger 4, heat collection can be performed on geothermal water flowing into the inside thereof to be utilized. In order to utilize the collected heat, a heating device is connected to a secondary water supply port of the heating heat exchange device, and a water outlet of the heating device is connected to a secondary water return port of the heating heat exchange device. In this embodiment, the heating device includes a plurality of groups of heating users 5, and the secondary water supply ports of the heating heat exchanger 4 are connected together and then connected with the water inlets of the plurality of groups of heating users 5 respectively, so that the heating water containing heat conveniently flows into the plurality of groups of heating users 5 to perform heating operation.
The water outlets of the heating users 5 are provided with a dirt remover 6 and a heating circulating pump 7, and the water outlets of the heating circulating pump 7 are connected in a converging way and then are respectively connected with the secondary side water return port of the heating heat exchanger 4. Through setting up multiunit heating circulating pump 7, can drive the heating water and circulate between the secondary side of each heating user 5 and each heating heat exchanger 4, and then carry out the heat exchange with the geothermal water that flows through each heating heat exchanger 4, and then realize the collection utilization of geothermal water. By providing the scrubber 6, the heating water flowing out of the heating user 5 can be subjected to a scrubbing operation, so that impurities in the heating water are prevented from affecting the normal operation of the heating heat exchanger 4.
In this embodiment, the dirt separators 6 are two groups connected in parallel to achieve the purpose of mutual standby. Likewise, the heating circulation pumps 7 are two groups connected in parallel, so as to achieve the purpose of mutual standby.
In order to perform filtering operation on the geothermal water flowing out of each heating heat exchanger 4, the primary water return ports of each heating heat exchanger 4 are converged and then connected with a front filtering device 8, in this embodiment, the front filtering devices 8 are two groups connected in parallel, and the two groups are mutually standby, wherein the water inlet of the front filtering device 8 is connected with an output pipeline connected after the primary water return ports of each heating heat exchanger 4 are converged.
In order to recover heat of the geothermal tail water after the preliminary filtering operation is finished, a water outlet of the front filtering device 8 is connected with a waste heat recovery device; in addition, in order to carry out the filtering operation again to the tail water that accomplishes waste heat recovery, be connected with back filter equipment 10 at waste heat recovery device's delivery port, the delivery port of back filter equipment 10 is connected to the tail water discharge port of geothermal well 1 through the pipeline to be connected with recharging pump 9 on the pipeline, recharging pump 9 is two sets of booster pumps of parallel connection, realizes being each other for reserve purpose. In this embodiment, the post-filter device 10 is provided with two groups connected in parallel, and the two groups are standby. In this embodiment, the waste heat recovery device includes a tail water heat exchanger 11 connected to the water outlet of the front filter device 8, a primary water supply port of the tail water heat exchanger 11 is connected to the water outlet of the front filter device 8, and a primary water return port is connected to the water inlet of the rear filter device 10. The tail water heat exchanger 11 can adopt a plate heat exchanger, and the tail water heat exchanger 11 can be used for collecting heat again to the geothermal water tail water after heat collection, so that the heat recovery operation of the tail water is realized, and the waste of resources caused by recharging geothermal water still containing a large amount of heat into the geothermal well 1 is avoided.
As shown in fig. 2, in the present embodiment, the front filter device 8 includes a filter tank 8-3 having a filter water inlet 8-7 provided at an upper portion thereof and a filter water outlet 8-16 provided at a lower portion thereof, a filter packing 8-4 provided at a lower portion of an inner cavity of the filter tank 8-3, and a lower filter assembly 8-14 and an upper filter assembly 8-11 provided above the filter packing 8-4; the inner wall of the filter tank 8-3 is fixedly connected with a lower mounting ring 8-5 and an upper mounting ring 8-6 which are positioned above the filter filler 8-4, the orifice plate mounting ring in the lower filter assembly 8-14 is connected with the lower mounting ring 8-5, and the orifice plate mounting ring in the upper filter assembly 8-11 is connected with the filter water outlet 8-16.
The front filtering device 8 also comprises a scraper rotating shaft 8-12 arranged in the inner cavity of the filtering tank 8-3, wherein a lower scraper 8-13 for cleaning a lower filtering component 8-14 and an upper scraper 8-10 for cleaning an upper filtering component 8-11 are arranged on the scraper rotating shaft 8-12; the scraper rotating shaft 8-12 is connected with a scraper through a shaft coupler, and the scraper rotating shaft 8-12 is connected with a motor through a shaft coupler. In the present embodiment, the structure of the rear filter 10 is identical to that of the front filter 8.
With further reference to FIG. 3, in this embodiment, the upper filter assembly 8-11 includes an orifice plate mounting ring 8-11-1 connected to the filter tank 8-3, a filter orifice plate 8-11-2 is mounted on the orifice plate mounting ring 8-11-1, a stepped mounting slot is formed in the filter orifice plate 8-11-2, a sand collecting drain basket 8-11-3 is inserted at the mounting slot, a lifting rod 8-9 is mounted on the sand collecting drain basket 8-11-3, and handles for facilitating gripping are mounted on the lifting rod 8-9, each handle being located within the filter tank 8-3. The sand collecting draining basket 8-11-3 comprises a draining basket body which is arranged in a fan-shaped structure, and a plurality of groups of draining holes are formed in the draining basket body; the open end of the draining basket body is provided with an outward folded edge, and the folded edge is inserted into the stepped shoulder of the mounting notch in the assembly process.
The upper filter assembly 8-11 and the lower filter assembly 8-14 have the same structure, and a mounting connecting rod 8-15 for connecting the upper filter assembly 8-11 and the lower filter assembly 8-14 is arranged between the sand collecting and draining baskets which are correspondingly arranged up and down. Further, the lower filter assembly 8-14 comprises an orifice plate mounting ring connected with the filter tank 8-3, a filter orifice plate is mounted on the orifice plate mounting ring, a stepped mounting notch is formed in the filter orifice plate, and a sand collecting draining basket is inserted in the mounting notch. The installation notch arranged on the lower filter assembly 8-14 is smaller than the installation notch arranged on the upper filter assembly 8-11, so that the sand collecting and draining basket in the lower filter assembly 8-14 can penetrate through the installation notch arranged on the upper filter assembly 8-11. In addition, a window through which the sand collecting and draining basket 8-11-3 can penetrate is arranged at the top of the filtering tank 8-3, and a cover plate is buckled at the window.
In the actual working process, the upper filter assembly 8-11 and the lower filter assembly 8-14 can respectively perform coarse filtration operation on the geothermal water tail water flowing into the filter tank 8-3, and the filter stuffing 8-4 performs fine filtration operation on the geothermal water after the coarse filtration; the rotary driving piece 8-8 is started to drive the scraper rotating shaft 8-12 to rotate, and then the scraper rotating shaft 8-12 is driven to be provided with the upper scraper 8-10 and the lower scraper 8-13 to revolve around the central line of the scraper rotating shaft 8-12, wherein the lower end parts of the upper scraper 8-10 and the lower scraper 8-13 are respectively in friction contact with the upper filter assembly 8-11 and the lower filter assembly 8-14, and sand trapped by the upper filter assembly 8-11 and the lower filter assembly 8-14 is swept into the sand-collecting draining basket, so that the sand trapped by the upper filter assembly 8-11 and the lower filter assembly 8-14 is prevented from blocking filter holes in a filter pore plate to influence the filtering effect of the filtering device. When placing or when each sand collecting and draining basket is fully filled with foreign matters such as sand stone, the sand collecting and draining basket can be lifted out through the notch formed in the top of the filtering tank, the sand stone is fallen down, and then placed in.
In order to utilize the heat recovered and collected by the tail water heat exchanger 11, the embodiment further comprises a heat pump device 12 and an intermediate circulating pump 13 connected with the tail water heat exchanger 11, and further comprises a water circulating pump 14 and a domestic water tank 15 connected with the heat pump device 12.
Wherein the evaporator inlet of the heat pump device 12 is connected to the secondary side water supply port of the tail water heat exchanger 11 through a pipeline and an intermediate circulating pump 13, and the evaporator outlet of the heat pump device 12 is connected to the secondary side water return port of the tail water heat exchanger 11; the condenser inlet of the heat pump device 12 is connected with the domestic water tank 15 through a pipeline and the water circulating pump 14, and the condenser outlet of the heat pump device 12 is connected with the domestic water tank 15. The middle circulating pump 13 and the water circulating pump 14 are two groups of pump bodies which are connected in parallel, so that the purpose of mutual standby is realized.
By arranging the tail water heat exchanger 11 and the heat pump device 12, heat in the tail water of geothermal water can be collected, and the heat is utilized to heat the domestic water in the domestic water tank 15, so that the use is convenient. In addition, a mixing valve 16 is installed at the hot water outlet of the fresh water tank 15, and the mixing valve 16 is connected to a tap water source or a water replenishing device to be mentioned later through a cold water pipe. Thereby the temperature of the domestic hot water outputted from the domestic water tank 15 can be adjusted.
The embodiment also comprises a water supplementing device for supplementing water to the heating heat device and the waste heat recovery device. The water replenishing device comprises a water softening device 17 and a water replenishing tank 18, and a water inlet of the water softening device 17 is connected with a tap water source through a pipeline. The water softening device 17 is in the prior art, mainly used for removing ions in tap water, and softening water, and is widely applied to a hot water boiler system, a heat exchange system, an industrial cooling system, a central air conditioning system and other water equipment systems, and is not described herein.
In the embodiment, the water replenishing tank 18 is provided with a water inlet and two water outlets, and the water inlet of the water replenishing tank 18 is connected with the water outlet of the water softening device 17 through a pipeline; a water outlet of the water replenishing tank 18 is connected with a water inlet of the intermediate circulation pump 13 through a pipeline to replenish liquid in the evaporator of the heat pump device 12; the other water outlet of the water supplementing water tank 18 is connected with a plurality of groups of heating water supplementing pumps 19, and the water outlet of each heating water supplementing pump 19 is respectively connected with the secondary side water return port of each heating heat exchanger 4.
Working principle:
The method comprises the steps that a submerged pump in a geothermal well 1 pumps a geothermal water source out of the geothermal well 1, sand removal treatment is carried out through a cyclone sand remover 2, under the action of a well water pressurizing pump 3, the geothermal water source simultaneously flows into the primary sides of a plurality of groups of heating heat exchangers 4, heating water between the groups of heating heat exchangers 4 and a heating user 5 circularly flows under the action of a heating circulating pump 7, and then heat exchange operation is carried out on the geothermal water source flowing through the groups of heating heat exchangers 4, so that the purposes of collecting heat in the geothermal water source and using the heat for heating operation are achieved;
The geothermal water flowing out of the primary sides of the multiple groups of heating heat exchangers 4 flows into the front filtering device 8, after the filtering operation of the front filtering device 8, the geothermal water enters the primary side of the tail water heat exchanger 11 and exchanges heat with the liquid flowing through the secondary side, the tail water after heat exchange flows into the rear filtering device 10 from the primary side outlet of the tail water heat exchanger 11 to perform the filtering operation again, and then particulate impurities in the tail water are filtered before recharging, and the tail water is recharged into the geothermal well 1 from a recharging pipeline under the action of the recharging pump 9;
Under the action of the intermediate circulating pump 13, the liquid flowing between the evaporator of the heat pump device 12 and the secondary side of the tail water heat exchanger 11 circularly flows, and then exchanges heat with the geothermal water flowing through the tail water heat exchanger 11 when flowing through the tail water heat exchanger 11, so as to realize the recovery of the participation heat in the geothermal water tail water; under the action of the water circulation pump 14, domestic water circulates between the domestic water tank 15 and the condenser of the heat pump device 12, thereby achieving the purpose of heating the domestic water in the domestic water tank 15.
Claims (8)
1. A ground source heat pump heating system comprises a ground heating well (1); the method is characterized in that: a rotational flow sand remover (2) and a well water pressurizing pump (3) are arranged on a geothermal well water output pipeline of a geothermal well (1), a heating heat exchange device is connected to a water outlet of the well water pressurizing pump (3), a primary side water supply port of the heating heat exchange device is connected to the well water pressurizing pump (3), and a primary side water return port of the heating heat exchange device is connected with a front filtering device (8); a secondary side water supply port of the heating heat exchange device is connected with a heating device, and a water outlet of the heating device is connected with a secondary side water return port of the heating heat exchange device; a water outlet of the front filtering device (8) is connected with a waste heat recovery device; the water outlet of the waste heat recovery device is connected with a rear filtering device (10), and the water outlet of the rear filtering device (10) is connected to a tail water discharge port of the geothermal well (1); the water supplementing device is used for supplementing water to the heating heat device and the waste heat recovery device; the waste heat recovery device comprises a tail water heat exchanger (11) connected with a water outlet of the front filtering device (8), a primary side water supply port of the tail water heat exchanger (11) is connected with the water outlet of the front filtering device (8), and a primary side water return port is connected with a water inlet of the rear filtering device (10); the system also comprises a heat pump device (12) and an intermediate circulating pump (13) which are connected with the tail water heat exchanger (11), and further comprises a water circulating pump (14) and a domestic water tank (15) which are connected with the heat pump device (12).
2. The ground source heat pump heating system of claim 1, wherein: the front filtering device (8) comprises a filtering tank (8-3) with a filtering water inlet (8-7) arranged at the upper part and a filtering water outlet (8-16) arranged at the lower part, a filtering filler (8-4) arranged at the lower part of an inner cavity of the filtering tank (8-3), and a lower filtering component (8-14) and an upper filtering component (8-11) arranged above the filtering filler (8-4); the filter device also comprises a scraper rotating shaft (8-12) arranged in the inner cavity of the filter tank (8-3), wherein a lower scraper (8-13) for cleaning a lower filter assembly (8-14) and an upper scraper (8-10) for cleaning an upper filter assembly (8-11) are arranged on the scraper rotating shaft (8-12); the scraper rotating shaft (8-12) is driven to rotate by the scraper rotating shaft (8-8); the structure of the rear filter device (10) is identical to that of the front filter device (8).
3. The ground source heat pump heating system as set forth in claim 2, wherein: the upper filter assembly (8-11) comprises an orifice plate mounting ring (8-11-1) connected with the filter tank (8-3), a filter orifice plate (8-11-2) is mounted on the orifice plate mounting ring (8-11-1), a stepped mounting notch is formed in the filter orifice plate (8-11-2) and a sand collecting draining basket (8-11-3) is inserted at the mounting notch, and a lifting rod (8-9) is mounted on the sand collecting draining basket (8-11-3).
4. A ground source heat pump heating system as set forth in claim 3, wherein: the upper filter assembly (8-11) and the lower filter assembly (8-14) are identical in structure, and a mounting connecting rod (8-15) for connecting the upper filter assembly and the lower filter assembly is arranged between the sand collecting and draining baskets which are arranged correspondingly up and down.
5. The ground source heat pump heating system of claim 1, wherein: the evaporator inlet of the heat pump device (12) is connected to the secondary side water supply port of the tail water heat exchanger (11) through a pipeline and an intermediate circulating pump (13), and the evaporator outlet of the heat pump device (12) is connected to the secondary side water return port of the tail water heat exchanger (11); the condenser inlet of the heat pump device (12) is connected with the domestic water tank (15) through a pipeline and a water circulating pump (14), and the condenser outlet of the heat pump device (12) is connected with the domestic water tank (15); a water mixing valve (16) is arranged at a hot water outlet of the water tank (15) for use, and the water mixing valve (16) is connected with a water supplementing device through a cold water pipeline.
6. The ground source heat pump heating system of claim 1, wherein: the heating heat exchange device comprises at least three groups of heating heat exchangers (4) which are arranged in parallel, primary side water supply ports of the heating heat exchangers (4) are all connected with a conveying pipeline connected with a water outlet of a well water pressurizing pump (3), and primary side water return ports of the heating heat exchangers (4) are connected to a water inlet of a front filtering device (8) in a converging mode.
7. The ground source heat pump heating system as set forth in claim 6, wherein: the heating device comprises a plurality of groups of heating users (5), the secondary side water supply ports of the heating heat exchanger (4) are connected in a converging way and then are respectively connected with the water inlets of the plurality of groups of heating users (5), the water outlets of the heating users (5) are respectively provided with a dirt remover (6) and a heating circulating pump (7), and the water outlets of the heating circulating pump (7) are connected in a converging way and then are respectively connected with the secondary side water return ports of the heating heat exchanger (4).
8. The ground source heat pump heating system as set forth in claim 7, wherein: the water replenishing device comprises a water softening device (17) and a water replenishing tank (18), and a water inlet of the water softening device (17) is connected with a tap water source through a pipeline; the water replenishing water tank (18) is provided with a water inlet and two water outlets, the water inlet of the water replenishing water tank (18) is connected with the water outlet of the water softening device (17) through a pipeline, and one water outlet of the water replenishing water tank (18) is connected with the water inlet of the intermediate circulating pump (13) through a pipeline; the other water outlet of the water supplementing water tank (18) is connected with a plurality of groups of heating water supplementing pumps (19), and the water outlet of each heating water supplementing pump (19) is respectively connected with the secondary side water return port of each heating heat exchanger (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322570231.3U CN220911521U (en) | 2023-09-21 | 2023-09-21 | Ground source heat pump heating system |
Applications Claiming Priority (1)
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