CN211233061U - Geothermal heating heat supply station system - Google Patents
Geothermal heating heat supply station system Download PDFInfo
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- CN211233061U CN211233061U CN201922261993.9U CN201922261993U CN211233061U CN 211233061 U CN211233061 U CN 211233061U CN 201922261993 U CN201922261993 U CN 201922261993U CN 211233061 U CN211233061 U CN 211233061U
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Abstract
The utility model relates to a geothermal heating plant system. Including geothermal recovery wells; the geothermal well water output pipeline of the geothermal exploitation well is provided with a well water pressure pump, and further comprises a high-area heat exchanger, a middle-area heat exchanger and a low-area heat exchanger, wherein the outlet of the well water pressure pump is simultaneously connected with the primary side inlets of the high-area heat exchanger, the middle-area heat exchanger and the low-area heat exchanger; the heat exchanger comprises a high-area heat exchanger, a middle-area heat pump and a low-area heat pump, wherein primary side outlets of the high-area heat exchanger, the middle-area heat exchanger and the low-area heat exchanger are connected to a primary side inlet of the middle heat exchanger, a primary side outlet of the middle heat exchanger is connected with a discharge pipeline, a secondary side outlet of the middle heat exchanger is simultaneously connected to evaporator inlets of the high-area heat pump, the middle-area heat pump and the low-area heat pump through a middle circulating pump, and evaporator outlets of the high-area heat pump, the middle-area heat. The utility model has the advantages of reasonable design, make full use of the heat energy in the geothermal well aquatic.
Description
Technical Field
The utility model belongs to the technical field of the heating heat supply, especially, relate to a geothermal heating heat supply station system.
Background
In a heating system using geothermal water as a heat source, the heat extraction of the heat in a water source is a more critical technical link. Usually, heat is extracted from geothermal water by using heat exchanger facilities, a water source pipeline carrying heat exchanges heat with a heating pipeline in the heat exchanger, and a water medium in the heating pipeline exchanges heat and is heated up and then is supplied to a subsequent system link.
In the construction of a heating and heat supplying system of a high-rise building, the heat supplying characteristics of a high area, a middle area and a low area of the building need to be considered for carrying out the optimized arrangement of a pipe network, so that the heating and heat supplying effects of the high area, the middle area and the low area tend to be consistent. Simultaneously, the design of geothermal heating heat supply station should utilize the heat energy of geothermal well aquatic as far as possible, namely carries out make full use of with the heat energy of geothermal well aquatic, and this helps promoting the operating efficiency of heating heat exchange station, reduces the operation cost in order to promote the operation income. The existing heating and heat supplying station system can only utilize a part of heat energy in geothermal well water, and after extraction of the heat energy is completed, low-temperature geothermal well water is required to be recharged through a recharging well, so that the geothermal well water is not fully utilized.
The realization is to the maximize heat utilization of geothermol power well water will help reducing the operation cost of whole heating system, is favorable to optimizing the component structure of whole heating heat supply station simultaneously. Therefore, developing and designing a more reasonable geothermal heating heat supply station system has very important meaning to promoting the operating efficiency of heating heat exchange station, reducing the operation cost and promoting the operation income.
SUMMERY OF THE UTILITY MODEL
The utility model provides a geothermal heating and heat supply station system which has reasonable structural design and fully utilizes the heat energy in the geothermal well water for solving the technical problems in the prior art.
The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be: a geothermal heating plant system includes a geothermal production well; a well water pressure pump is arranged on a geothermal well water output pipeline of the geothermal exploitation well, and the geothermal exploitation well also comprises a high-area heat exchanger, a middle-area heat exchanger and a low-area heat exchanger, an outlet of the well water pressure pump is simultaneously connected with the high-area heat exchanger, the water return port of the middle area heating pipeline is connected to the secondary side inlet of the middle area heat exchanger and is provided with a middle area circulating pump, the water inlet of the middle area heating pipeline is connected to the secondary side outlet of the middle area heat exchanger, the water return port of the low area heating pipeline is connected to the secondary side inlet of the low area heat exchanger and is provided with a low area circulating pump, and the water inlet of the low area heating pipeline is connected to the secondary side outlet of the low; the heat pump system also comprises an intermediate heat exchanger, a high-area heat pump, a middle-area heat pump and a low-area heat pump, wherein primary side outlets of the high-area heat exchanger, the middle-area heat exchanger and the low-area heat exchanger are connected to a primary side inlet of the intermediate heat exchanger; the condenser inlet of the high-area heat pump is connected with the secondary side inlet of the high-area heat exchanger, the condenser outlet of the high-area heat exchanger is connected with the secondary side outlet of the high-area heat exchanger, the condenser inlet of the middle-area heat pump is connected with the secondary side inlet of the middle-area heat exchanger, the condenser outlet of the middle-area heat pump is connected with the secondary side outlet of the middle-area heat exchanger, the condenser inlet of the low-area heat pump is connected with the secondary side inlet of the low-area.
The utility model has the advantages that: the utility model provides a geothermal heating supply station system that structural design is reasonable compares with current geothermal heating supply station system, divides high-rise building's heating unit into high district, zhongzhong district and low zone three in this technical scheme to carry out heating heat supply alone for every independent region, the flow control through the system can balance the heat supply heat energy input volume in each region, makes the heating effect in each region tend to unanimity. Through setting up middle heat exchanger and high district heat pump, well district heat pump and low zone heat pump, realized the heat exchanger of high district, the heat energy of the tail aquatic of side export emission is once carried out the recovery and is used technological effect in well district heat exchanger and low zone heat exchanger, the heat energy of retrieving is carried the heat through three heat pump and is carried for the high district heating pipeline, well district heating pipeline and low zone heating pipeline, consequently, this system make full use of the heat energy of geothermal well aquatic, help promoting the operating efficiency of heating heat exchange station, the operation cost is reduced and the operation income has been promoted.
Preferably: the middle heat exchangers are arranged in parallel, three devices, one device and two devices are used, primary side outlets of the high-area heat exchanger, the middle-area heat exchanger and the low-area heat exchanger are connected to a confluence pipeline, the confluence pipeline is simultaneously connected to primary side inlets of the middle heat exchangers, and primary side outlets of the middle heat exchangers are simultaneously connected to a discharge pipeline; the outlets of the evaporators of the high-region heat pump, the middle-region heat pump and the low-region heat pump are connected to another confluence pipeline, the confluence pipeline is simultaneously connected to the secondary side inlet of each intermediate heat exchanger, and the secondary side outlet of each intermediate heat exchanger is simultaneously connected to the intermediate circulating pump.
Preferably: the water supply system comprises a water supply tank and a water softening device, wherein the inlet of the water softening device is connected to a tap water source through a pipeline, and the outlet of the water softening device is connected to the water source inlet of the water supply tank; still include by the moisturizing pump package that high district moisturizing pump, well district moisturizing pump and low district moisturizing pump constitute, the entry of high district moisturizing pump, well district moisturizing pump and low district moisturizing pump is connected with the water supply mouth of moisturizing case, and the exit linkage of high district moisturizing pump is to the return water mouth of high district heating pipeline, and the exit linkage of well district moisturizing pump is to the return water mouth of well district heating pipeline, and the exit linkage of low district moisturizing pump is to the return water mouth of low district heating pipeline.
Preferably: the well head device comprises a shell, a sleeve is arranged in the middle of the shell, an upper pouring layer and a lower pouring layer are arranged between the shell and the sleeve, a plurality of embedded parts are arranged between the two pouring layers, and each embedded part is welded and fixed with the sleeve; the underground heat recovery well further comprises an output pipe, the inner end of the output pipe is located in the sleeve, the outer end of the output pipe penetrates out of the shell, and an outlet of a submersible pump installed at the bottom of the underground heat recovery well is connected with the inner end of the output pipe through a lifting pipeline.
Preferably: the device also comprises a cyclone desander, the outer end of the output pipe is connected with the inlet of the cyclone desander, and the outlet of the cyclone desander is connected with the well water pressure pump.
Preferably: dirt removers are arranged on a pipeline between a water return port of a high-region heating pipeline and a secondary side inlet of a high-region heat exchanger, a pipeline between a water return port of a middle-region heating pipeline and a secondary side inlet of a middle-region heat exchanger, and a pipeline between a water return port of a low-region heating pipeline and a secondary side inlet of a low-region heat exchanger.
Preferably: the outlet of the low-region water replenishing pump is connected to the inlet of the intermediate circulating pump through a pipeline.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic diagram of the wellhead assembly of fig. 1.
In the figure: 1. a geothermal production well; 2. a wellhead assembly; 2-1, a shell; 2-2, placing a pouring layer; 2-3, lower pouring layer; 2-4, sleeving a pipe; 2-5, embedded parts; 2-6, a cover plate; 2-7, an output pipe; 2-8, sealing the bushing; 3. a cyclone desander; 4. a well water pressure pump; 5. a high-zone heat exchanger; 6. a middle zone heat exchanger; 7. a low zone heat exchanger; 8. an intermediate heat exchanger; 9. a high-zone heat pump; 10. a middle zone heat pump; 11. a low-zone heat pump; 12. a high-zone circulating pump; 13. a middle area circulating pump; 14. a low-zone circulating pump; 15. a water replenishing pump set; 16. a water replenishing tank; 17. a water softening device; 18. an intermediate circulation pump.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are described in detail:
referring to fig. 1, the geothermal heating plant system of the present invention includes a geothermal exploitation well 1; a well water pressure pump 4 is arranged on a geothermal well water output pipeline of the geothermal exploitation well 1, and the well water pressure pump 4 is used for improving the power of geothermal well water flowing in the system. The bottom of the geothermal exploitation well 1 is provided with a high-temperature resistant submersible pump, and in order to facilitate connection and installation with the geothermal exploitation well 1 by other facilities, in the embodiment, the wellhead device 2 is further arranged at the wellhead position of the geothermal exploitation well 1.
Referring to fig. 2, it can be seen that: the wellhead device 2 comprises a shell 2-1, a sleeve 2-4 is arranged in the middle of the shell 2-1, an upper pouring layer 2-2 and a lower pouring layer 2-3 are arranged between the shell 2-1 and the sleeve 2-4, a plurality of embedded parts 2-5 are arranged between the two pouring layers, and each embedded part 2-5 is welded and fixed with the outer wall of the sleeve 2-4. The upper pouring layer 2-2 and the lower pouring layer 2-3 are used for installing and fixing the sleeve 2-4 in the middle of the inner cavity of the shell 2-1, the upper end and the lower end of the sleeve 2-4 penetrate through the two pouring layers, and each embedded part 2-5 is used for assisting and fixing the sleeve 2-4, so that the bonding strength between the sleeve 2-4 and the two pouring layers is improved. During construction, the embedded parts 2-5 are welded and installed on the outer wall of the sleeve 2-4, a supporting mold is arranged between the shell 2-1 and the sleeve 2-4, and the lower pouring layer 2-3 is formed in a pouring mode. And (3) transporting the combination to the position of a well mouth of the geothermal exploitation well 1, welding and fixing the top edge of a sleeve of the geothermal exploitation well 1, which is positioned at the well mouth, with the bottom edge of the shell 2-1, and then pouring and molding the upper pouring layer 2-2.
The inner end of the output pipe 2-7 is positioned in the sleeve 2-4, and the outer end of the output pipe 2-7 penetrates out of the shell 2-1, as shown in figure 2, an end plate is arranged at the top of the sleeve 2-4, the edge of the top of the sleeve 2-4 is welded with the lower surface of the end plate in a sealing mode, a pipe hole is formed in the center of the end plate, and the inner end of the output pipe 2-7 bends downwards and then penetrates into the pipe hole and is welded and fixed in a sealing mode. The top of the shell 2-1 is provided with a cover plate 2-6, a sealing gasket 2-8 is arranged between the output pipe 2-7 and the shell 2-1, a pressure gauge and a temperature gauge are arranged on the output pipe 2-7 and used for measuring the water pressure and the water temperature of geothermal well water, and the pressure gauge and the temperature gauge are read by opening the cover plate 2-6. The outlet of a submersible pump arranged at the bottom of the geothermal exploitation well 1 is connected with the inner ends of the output pipes 2-7 through a lifting pipeline.
In the embodiment, the device also comprises a cyclone desander 3 which is used for removing particulate impurities such as sand grains and the like contained in geothermal well water, the outer end of an output pipe 2-7 of the wellhead device 2 is connected with an inlet of the cyclone desander 3 through a well water output pipeline, and an outlet of the cyclone desander 3 is connected with a well water pressure pump 4. Two groups of well water pressure pumps 4 are arranged in parallel, one group of well water pressure pumps is used and the other group of well water pressure pumps is standby, and the operation reliability of the system is improved.
Also comprises a high-area heat exchanger 5, a middle-area heat exchanger 6 and a low-area heat exchanger 7, the outlet of the well water pressure pump 4 is simultaneously connected with the high-area heat exchanger 5, the primary side inlet of well district heat exchanger 6 and low zone heat exchanger 7, the return water mouth of high district heating pipeline is connected to the secondary side inlet of high district heat exchanger 5 and is equipped with high district circulating pump 12 on the pipeline, the water inlet of high district heating pipeline is connected to the secondary side outlet of high district heat exchanger 5, the return water mouth of well district heating pipeline is connected to the secondary side inlet of well district heat exchanger 6 and is equipped with well district circulating pump 13 on the pipeline, the water inlet of well district heating pipeline is connected to the secondary side outlet of well district heat exchanger 6, the return water mouth of low district heating pipeline is connected to the secondary side inlet of low district heat exchanger 7 and is equipped with low district circulating pump 14 on the pipeline, the water inlet of low district heating pipeline is connected to.
The high-region circulating pump 12 enables the heating hot water to form circulating flow between the high-region heat exchanger 5 and the high-region heating pipeline, the middle-region circulating pump 13 enables the heating hot water to form circulating flow between the middle-region heat exchanger 6 and the middle-region heating pipeline, and the low-region circulating pump 14 enables the heating hot water to form circulating flow between the low-region heat exchanger 7 and the low-region heating pipeline. High district circulating pump 12, well district circulating pump 13, low zone circulating pump 14 three set up two sets of side by side respectively, realize one separately and use one and prepare for each other, promote the reliability of system operation.
In this facility example, in order to guarantee the hot water quality of heating in high district heating pipeline, the district heating pipeline and the low district heating pipeline, on the pipeline between the return water mouth of high district heating pipeline and the secondary side entry of high district heat exchanger 5, on the pipeline between the return water mouth of the district heating pipeline and the secondary side entry of middle district heat exchanger 6, all be equipped with the dirt separator on the pipeline between the return water mouth of low district heating pipeline and the secondary side entry of low district heat exchanger 7. The dirt separator is mainly used for filtering heating hot water in a pipe network, particle impurities contained in the filtering hot water are filtered, the dirt separator has multiple existing models, and the dirt separator has more applications in a heating system, and is not repeated here.
The heat exchanger comprises an intermediate heat exchanger 8, a high-area heat pump 9, a middle-area heat pump 10 and a low-area heat pump 11, wherein primary side outlets of the high-area heat exchanger 5, the middle-area heat exchanger 6 and the low-area heat exchanger 7 are connected to a primary side inlet of the intermediate heat exchanger 8, and a primary side outlet of the intermediate heat exchanger 8 is connected with a discharge pipeline; the secondary side outlet of the intermediate heat exchanger 8 is simultaneously connected to the evaporator inlets of the high zone heat pump 9, the middle zone heat pump 10 and the low zone heat pump 11 through an intermediate circulation pump 18, and the evaporator outlets of the high zone heat pump 9, the middle zone heat pump 10 and the low zone heat pump 11 are simultaneously connected to the secondary side inlet of the intermediate heat exchanger 8.
The intermediate circulating pumps 18 are arranged into four groups in parallel, one-use three-standby mode is realized, and the running reliability of the system is improved.
The condenser inlet of the high-region heat pump 9 is connected to the secondary side inlet of the high-region heat exchanger 5, the condenser outlet is connected to the secondary side outlet of the high-region heat exchanger 5, the condenser inlet of the middle-region heat pump 10 is connected to the secondary side inlet of the middle-region heat exchanger 6, the condenser outlet is connected to the secondary side outlet of the middle-region heat exchanger 6, the condenser inlet of the low-region heat pump 11 is connected to the secondary side inlet of the low-region heat exchanger 7, and the condenser outlet is connected to the secondary side outlet of the low.
The high-area heat pump 9, the middle-area heat pump 10 and the low-area heat pump 11 are used for heating the tail water discharged from the primary side outlets of the high-area heat exchanger 5, the middle-area heat exchanger 6 and the low-area heat exchanger 7 by the middle heat exchanger 8 and transmitting the heat to the high-area heating pipeline, the middle-area heating pipeline and the low-area heating pipeline, so that the heat in the geothermal well water can be fully utilized.
In this embodiment, three intermediate heat exchangers 8 are arranged in parallel to realize one use and two standby, so as to improve the reliability of system operation. The primary side outlets of the high-zone heat exchanger 5, the middle-zone heat exchanger 6 and the low-zone heat exchanger 7 are connected to a confluence pipeline, the confluence pipeline is simultaneously connected to the primary side inlet of each intermediate heat exchanger 8, and the primary side outlet of each intermediate heat exchanger 8 is simultaneously connected to a discharge pipeline (tail water is discharged through the discharge pipeline or is conveyed to other facilities for further utilization); the outlets of the evaporators of the high-region heat pump 9, the middle-region heat pump 10 and the low-region heat pump 11 are connected to another confluence pipeline, the confluence pipeline is simultaneously connected to the secondary side inlet of each intermediate heat exchanger 8, and the secondary side outlet of each intermediate heat exchanger 8 is simultaneously connected to an intermediate circulating pump 18.
The water supply system comprises a water supply tank 16 and a water softening device 17, wherein the inlet of the water softening device 17 is connected to a tap water source through a pipeline, and the outlet of the water softening device is connected to the water source inlet of the water supply tank 16. The water replenishing tank 16 is used for storing a water replenishing source, and the water softening device 17 is used for softening the water replenishing source, removing ions contained in the water replenishing source and softening water.
The water softening device 17 is mainly used for removing calcium and magnesium ions in geothermal well water, and under the condition that the inlet water is deep well water or the hardness of a water source is high, the water softening device is used for removing the content of the calcium and magnesium ions in the water so as to reduce the calcium and magnesium ions in the water. The demineralized water equipment is at the in-process of demineralized water, does not reduce the total salt content in aquatic, all has extensive application in boiler system, heat exchange system, industrial cooling system, central air conditioning system and other water equipment systems, does not have in this patent repeated description.
Still include by the moisturizing pump package 15 that high district moisturizing pump, well district moisturizing pump and low district moisturizing pump constitute, the entry of high district moisturizing pump, well district moisturizing pump and low district moisturizing pump is connected with the water supply mouth of moisturizing case 16, the exit linkage of high district moisturizing pump to the return water mouth of high district heating pipeline, the exit linkage of well district moisturizing pump to the return water mouth of well district heating pipeline, the exit linkage of low district moisturizing pump to the return water mouth of low district heating pipeline. The high-area water replenishing pump, the middle-area water replenishing pump and the low-area water replenishing pump convey water replenishing water sources in the water replenishing tank 16 to the high-area heating pipeline, the middle-area heating pipeline and the low-area heating pipeline, and are used for compensating water loss in the pipe network.
In this embodiment, the outlet of the low-zone charge pump is connected to the inlet of the intermediate circulation pump 18 through a pipe. The effect of so setting is: and a water supplementing source is conveyed to a circulating pipeline between the secondary side of each intermediate heat exchanger 8 and the evaporators of the high-zone heat pump 9, the middle-zone heat pump 10 and the low-zone heat pump 11, so as to compensate the water loss in the circulating pipeline. The water replenishing water source enters the inlet of the intermediate circulating pump 18 through the pumping action of the low-region water replenishing pump, and enters the inlets of the evaporators of the high-region heat pump 9, the intermediate-region heat pump 10 and the low-region heat pump 11 through the pumping action of the intermediate circulating pump 18.
Claims (7)
1. A geothermal heating plant system comprising a geothermal production well (1); the method is characterized in that: be equipped with well water force (4) on the geothermal well water output pipeline of geothermal exploitation well (1), still include high district heat exchanger (5), well district heat exchanger (6) and low district heat exchanger (7), the export of well water force (4) is connected simultaneously to high district heat exchanger (5), the primary side entry of well district heat exchanger (6) and low district heat exchanger (7), the return water mouth of high district heating pipeline is connected to the secondary side entry of high district heat exchanger (5) and is equipped with high district circulating pump (12) on the pipeline, the water inlet of high district heating pipeline is connected to the secondary side export of high district heat exchanger (5), the return water mouth of well district heating pipeline is connected to the secondary side entry of well district heat exchanger (6) and is equipped with middle district circulating pump (13) on the pipeline, the water inlet of middle district heating pipeline is connected to the secondary side export of middle district heat exchanger (6), the return water mouth of low district heating pipeline is connected to the entry secondary side of low district heat exchanger ( A water inlet of the low-region heating pipeline is connected to a secondary side outlet of the low-region heat exchanger (7); the heat pump system is characterized by further comprising an intermediate heat exchanger (8), a high-area heat pump (9), an intermediate-area heat pump (10) and a low-area heat pump (11), primary side outlets of the high-area heat exchanger (5), the intermediate-area heat exchanger (6) and the low-area heat exchanger (7) are connected to a primary side inlet of the intermediate heat exchanger (8), a primary side outlet of the intermediate heat exchanger (8) is connected with a discharge pipeline, a secondary side outlet of the intermediate heat exchanger (8) is simultaneously connected to evaporator inlets of the high-area heat pump (9), the intermediate-area heat pump (10) and the low-area heat pump (11) through an intermediate circulating pump (18), and evaporator outlets of the high-area heat pump (9), the intermediate-area heat pump (10) and the low-area; the condenser inlet of the high-area heat pump (9) is connected to the secondary side inlet of the high-area heat exchanger (5), the condenser outlet of the high-area heat exchanger (5) is connected to the secondary side outlet of the middle-area heat exchanger (6), the condenser inlet of the middle-area heat pump (10) is connected to the secondary side inlet of the middle-area heat exchanger (6), the condenser outlet of the middle-area heat pump is connected to the secondary side outlet of the middle-area heat exchanger (6), the condenser inlet of the low-area heat pump (11) is connected to the secondary side inlet of the low-area heat exchanger (7).
2. The geothermal heating plant system of claim 1, wherein: the intermediate heat exchangers (8) are arranged in parallel to realize one-use-two-standby mode, primary side outlets of the high-area heat exchanger (5), the middle-area heat exchanger (6) and the low-area heat exchanger (7) are connected to a confluence pipeline, the confluence pipeline is simultaneously connected to primary side inlets of the intermediate heat exchangers (8), and primary side outlets of the intermediate heat exchangers (8) are simultaneously connected to a discharge pipeline; outlets of evaporators of the high-region heat pump (9), the middle-region heat pump (10) and the low-region heat pump (11) are connected to another confluence pipeline, the confluence pipeline is simultaneously connected to secondary side inlets of the intermediate heat exchangers (8), and secondary side outlets of the intermediate heat exchangers (8) are simultaneously connected to an intermediate circulating pump (18).
3. The geothermal heating plant system of claim 2, wherein: the water supply system comprises a water supply tank (16) and a softened water device (17), wherein the inlet of the softened water device (17) is connected to a tap water source through a pipeline, and the outlet of the softened water device is connected to the water source inlet of the water supply tank (16); still include moisturizing pump package (15) that constitute by high district moisturizing pump, well district moisturizing pump and low district moisturizing pump, the entry of high district moisturizing pump, well district moisturizing pump and low district moisturizing pump is connected with the supply water mouth of moisturizing case (16), the exit linkage of high district moisturizing pump to the return water mouth of high district heating pipeline, the exit linkage of well district moisturizing pump to the return water mouth of well district heating pipeline, the exit linkage of low district moisturizing pump to the return water mouth of low district heating pipeline.
4. The geothermal heating plant system of claim 3, wherein: a wellhead device (2) is arranged at a wellhead of the geothermal exploitation well (1), the wellhead device (2) comprises a shell (2-1), a sleeve (2-4) is arranged in the middle of the shell (2-1), an upper pouring layer (2-2) and a lower pouring layer (2-3) are arranged between the shell (2-1) and the sleeve (2-4), a plurality of embedded parts (2-5) are arranged between the two pouring layers, and each embedded part (2-5) is welded and fixed with the sleeve (2-4); the underground heat recovery well also comprises an output pipe (2-7) with the inner end positioned in the sleeve (2-4) and the outer end penetrating out of the shell (2-1), and an outlet of a submersible pump arranged at the bottom of the underground heat recovery well (1) is connected with the inner end of the output pipe (2-7) through a lifting pipeline.
5. The geothermal heating plant system of claim 4, wherein: the device is characterized by further comprising a cyclone desander (3), the outer end of the output pipe (2-7) is connected with the inlet of the cyclone desander (3), and the outlet of the cyclone desander (3) is connected with the well water pressure pump (4).
6. The geothermal heating plant system of claim 5, wherein: dirt removers are arranged on a pipeline between a water return port of a high-region heating pipeline and a secondary side inlet of the high-region heat exchanger (5), a pipeline between a water return port of a middle-region heating pipeline and a secondary side inlet of the middle-region heat exchanger (6), and a pipeline between a water return port of a low-region heating pipeline and a secondary side inlet of the low-region heat exchanger (7).
7. The geothermal heating plant system of claim 6, wherein: the outlet of the low-region water replenishing pump is connected to the inlet of the intermediate circulating pump (18) through a pipeline.
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| CN201922261993.9U CN211233061U (en) | 2019-12-16 | 2019-12-16 | Geothermal heating heat supply station system |
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| CN201922261993.9U CN211233061U (en) | 2019-12-16 | 2019-12-16 | Geothermal heating heat supply station system |
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