CN212511896U - Geothermal water cascade utilization system - Google Patents

Geothermal water cascade utilization system Download PDF

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Publication number
CN212511896U
CN212511896U CN202021038588.7U CN202021038588U CN212511896U CN 212511896 U CN212511896 U CN 212511896U CN 202021038588 U CN202021038588 U CN 202021038588U CN 212511896 U CN212511896 U CN 212511896U
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heat
water
pipe
flange
barrel
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CN202021038588.7U
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张敬刚
赵喜庆
齐永飞
沈立军
彭晨皓
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Sinopec Green Energy Geothermal Shandong Development Co Ltd
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Sinopec Green Energy Geothermal Shandong Development Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/10—Geothermal energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

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Abstract

The utility model discloses a geothermal water cascade utilization system, which comprises a PLC controller and a first-order heat storage module which control the whole system, a temperature adjusting system connected with the output end of the first-order heat storage module, a second-order heat pump module connected with the temperature adjusting system, and a third-order heat preservation water storage module connected with the first-order heat storage module, the second-order heat pump module and the temperature adjusting system; the three-order heat-preservation water storage module comprises a heat-preservation barrel body and a polyurethane heat-preservation outer layer arranged outside the heat-preservation barrel body; the lower part of the inner side of the heat-insulating barrel body is provided with a horizontal spiral pipe; two ends of the horizontal spiral pipe are respectively connected to two flange interfaces outside the heat-insulating barrel body; the utility model discloses a geothermal water step utilization system; the heat utilization rate is high, and the heat loss in the heat energy recovery process can be avoided, so that the geothermal water can adapt to the heat recovery of each step.

Description

Geothermal water cascade utilization system
Technical Field
The utility model relates to a geothermal water utilizes system, concretely relates to geothermal water step utilizes system belongs to geothermal water and utilizes system technical field.
Background
Geothermal water generally means that the temperature is lower than 90 ℃, can be directly used for heating, bathing, medical care and various forms of industrial heat, is a clean renewable energy, and has the advantages of wide distribution, easy development, cleanness, constant temperature and the like, at present, geothermal water generally adopts primary heat exchange recovery, thereby resulting in low geothermal water recovery rate, and therefore, the Chinese patent application number: 201720585374.3, discloses a geothermal water cascade utilization system, which greatly improves the utilization rate of geothermal water by carrying out three-stage cascade utilization on geothermal water; meanwhile, the electric heat pump is powered by solar energy and the water storage tank is heated, so that energy is greatly saved; in addition, different pressures and water flows can be adjusted and set by arranging the adjusting valve, so that different water temperatures can be provided according to requirements; however, in some areas, solar energy heating is obviously not suitable, and the heating measures of the technical scheme are easy to cause heat energy loss.
Disclosure of Invention
In order to solve the problem, the utility model provides a geothermal water step utilizes system, the heat utilization efficiency is high, and can avoid the heat waste among the heat recovery process.
The utility model discloses a geothermal water cascade utilization system, which comprises a PLC controller and a first-order heat storage module which control the whole system, a temperature adjusting system connected with the output end of the first-order heat storage module, a second-order heat pump module connected with the temperature adjusting system, and a third-order heat preservation water storage module connected with the first-order heat storage module, the second-order heat pump module and the temperature adjusting system; the temperature of the output end of each step can be controlled through a PLC; thereby adapting the heat energy to various grades; avoid the temperature too low can't adapt to the step, or the temperature is too high causes heat energy waste.
The three-order heat-preservation water storage module comprises a heat-preservation barrel body and a polyurethane heat-preservation outer layer arranged outside the heat-preservation barrel body; the lower part of the inner side of the heat-insulating barrel body is provided with a horizontal spiral pipe; two ends of the horizontal spiral pipe are respectively connected to two flange interfaces outside the heat-insulating barrel body; the heat-insulating barrel body is used as a water-storage heat-insulating barrel, and the stored water in the heat-insulating barrel body is used as a low-step heat recovery application point and is used as a high-step basic heating point;
the first-order heat storage module comprises a plurality of phase change heat storage barrels, and a heat medium leading-in flange of each phase change heat storage barrel is connected to a heat medium first main pipe through a first electric control valve; the heat medium first main pipe is connected to a geothermal water supply end through a first pump body; the heat medium outlet flange of each phase change heat storage barrel is connected to the second heat medium main pipe; the temperature regulating system is connected with the heat medium second main pipe; a first temperature transmitter is arranged on the heat medium second main pipe; the water inlet flange of each phase-change heat storage barrel is connected to the first water pipe through a second electric control valve; the first water pipe is connected to the bottom of the inner side of the heat-insulating barrel body through a second pump body; the drainage flange of each phase change heat storage barrel is connected to the second water pipe; a second temperature transmitter is arranged on the second water pipe; the second water pipe is connected to the high-temperature heat supply end;
when the heat storage device works, the first pump body pumps heat energy of a geothermal water supply end into the first main pipe of the heat medium, and a certain phase change heat storage barrel is selected to be opened through the first electric control valve for heat exchange and heat storage; a second temperature transmitter on the second water pipe monitors the output heat temperature, when the temperature of the second temperature transmitter is lower than a low threshold value, the output requirement cannot be met by the heat temperature of the phase change heat storage barrel, and the phase change heat storage barrel is switched to another phase change heat storage barrel which completes heat exchange through a second electric control valve; thereby ensuring that the output ends can meet the requirement of heat energy output;
the temperature adjusting system comprises a cylindrical barrel, and a vertical spiral pipe is arranged on the inner side of the cylindrical barrel; two ends of the vertical spiral pipe are connected to an upper flange interface and a lower flange interface outside the cylindrical barrel; the upper flange interface is connected to the second main heat medium pipe, and an inlet and an outlet are arranged on the cylindrical barrel; the inlet is connected to the heat-insulating barrel body through a circulating pump, and the outlet is directly connected to the heat-insulating barrel body;
the first temperature transmitter detects the temperature of geothermal water entering the vertical spiral pipe, when the first-order heat storage module is switched for multiple times and the temperature is still higher than a certain threshold value, the circulating pump drives low-temperature hot water in the heat-insulating barrel body into the cylindrical barrel for heat exchange, and drives the low-temperature hot water after heat exchange into the heat-insulating barrel body again; thereby carrying out intermediate heat recovery on the geothermal water in the vertical spiral pipe and avoiding overhigh temperature of the geothermal water entering the heat pump end;
the second-order heat pump module comprises a heat pump module, and an inlet of an evaporator heat exchange end of the heat pump module is connected to a lower flange interface of the temperature regulating system; an outlet of a heat exchange end of an evaporator of the heat pump module is connected to a flange interface of the heat preservation barrel body; the other flange interface of the heat-insulating barrel body is connected to the outer discharge end; the geothermal water which is subjected to temperature regulation enters an evaporator of the heat pump module, so that the evaporator is utilized to carry out thermal evaporation on the working medium of the heat pump, and finally enters the compressor and the condenser to carry out heat recovery, and then enters the evaporator again to carry out thermal evaporation again.
Further, the heat conduction inner container is a glass inner tube or a metal inner tube.
Furthermore, the phase change heat storage barrel comprises a heat insulation outer barrel and a heat conduction inner container fixed on the inner side of the heat insulation outer barrel through a support piece; the heat-conducting inner container is of a closed structure; a U-shaped pipe is arranged inside the heat-conducting inner container; two ends of the U-shaped pipe are connected to a water inlet flange and a water discharge flange outside the heat-insulating outer cylinder; a PCM phase change energy storage material layer is filled in the heat conduction inner container; a heat medium leading-in flange is arranged at the lower part of the heat-insulating outer cylinder; and a heat medium guiding flange is arranged at the upper part of the heat-insulating outer cylinder.
Further, be provided with moisturizing pipe and liquid level valve on the heat preservation staving, when the liquid level was low excessively, can squeeze into cold water automatically.
Compared with the prior art, the utility model discloses a geothermal water step utilizes the system; the heat utilization rate is high, and the heat loss in the heat energy recovery process can be avoided, so that the geothermal water can adapt to the heat recovery of each step.
Drawings
Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention.
Fig. 2 is a schematic view of a partially enlarged structure at a in embodiment 1 of the present invention.
Detailed Description
Example 1:
the geothermal water cascade utilization system shown in fig. 1 and 2 comprises a PLC controller and a first-order heat storage module for controlling the whole system, a temperature adjustment system connected with the output end of the first-order heat storage module, a second-order heat pump module connected with the temperature adjustment system, and a third-order heat preservation water storage module connected with the first-order heat storage module, the second-order heat pump module and the temperature adjustment system; the temperature of the output end of each step can be controlled through a PLC; thereby adapting the heat energy to various grades; avoid the temperature too low can't adapt to the step, or the temperature is too high causes heat energy waste.
The three-order heat-preservation water storage module comprises a heat-preservation barrel body 1 and a polyurethane heat-preservation outer layer 2 arranged outside the heat-preservation barrel body; the lower part of the inner side of the heat-insulating barrel body 1 is provided with a horizontal spiral pipe 3; two ends of the horizontal spiral pipe 3 are respectively connected to two flange interfaces outside the heat-insulating barrel body 3; the heat-insulating barrel body is used as a water-storage heat-insulating barrel, and the stored water in the heat-insulating barrel body is used as a low-step heat recovery application point and is used as a high-step basic heating point;
the first-order heat storage module comprises a plurality of phase change heat storage barrels 4, and a heat medium leading-in flange of each phase change heat storage barrel 4 is connected to a heat medium first main pipe 6 through a first electric control valve 5; the heat medium first main pipe 6 is connected to a geothermal water supply end through a first pump body 7; each phase change heat storage barrel 4 is connected with a heat medium outlet flange of the second main pipe 8 of the heat medium; a temperature adjusting system connected with the second main heat medium pipe 8; a first temperature transmitter 9 is arranged on the heat medium second main pipe 8; the water inlet flange of each phase-change heat-storage barrel 4 is connected to a first water pipe 11 through a second electric control valve 10; the first water pipe 11 is connected to the bottom of the inner side of the heat-insulating barrel body 1 through a second pump body 12; each of the phase change heat storage barrels 4 is connected to the second water pipe 13 by a drain flange; a second temperature transmitter 14 is arranged on the second water pipe 13; the second water pipe 13 is connected to a high-temperature heat supply end;
when the heat storage device works, the first pump body pumps heat energy of a geothermal water supply end into the first main pipe of the heat medium, and a certain phase change heat storage barrel is selected to be opened through the first electric control valve for heat exchange and heat storage; a second temperature transmitter on the second water pipe monitors the output heat temperature, when the temperature of the second temperature transmitter is lower than a low threshold value, the output requirement cannot be met by the heat temperature of the phase change heat storage barrel, and the phase change heat storage barrel is switched to another phase change heat storage barrel which completes heat exchange through a second electric control valve; thereby ensuring that the output ends can meet the requirement of heat energy output;
the temperature regulating system comprises a cylindrical barrel 15, and a vertical spiral pipe 16 is arranged on the inner side of the cylindrical barrel 15; two ends of the vertical spiral pipe 16 are connected to an upper flange interface and a lower flange interface outside the cylindrical barrel; the upper flange interface is connected to the second main heat medium pipe 8, and the cylindrical barrel 15 is provided with an inlet and an outlet; the inlet is connected to the insulating barrel body 1 through a circulating pump 17, and the outlet is directly connected to the insulating barrel body 1;
the first temperature transmitter detects the temperature of geothermal water entering the vertical spiral pipe, when the first-order heat storage module is switched for multiple times and the temperature is still higher than a certain threshold value, the circulating pump drives low-temperature hot water in the heat-insulating barrel body into the cylindrical barrel for heat exchange, and drives the low-temperature hot water after heat exchange into the heat-insulating barrel body again; thereby carrying out intermediate heat recovery on the geothermal water in the vertical spiral pipe and avoiding overhigh temperature of the geothermal water entering the heat pump end;
the second-order heat pump module comprises a heat pump module, and an inlet of a heat exchange end 18 of the heat pump module is connected to a lower flange interface of the temperature regulating system; an outlet of a heat exchange end 18 of the heat pump module is connected to a flange interface of the heat preservation barrel body 1; the other flange interface of the heat-insulating barrel body 1 is connected to an outer discharge end; the geothermal water which is subjected to temperature regulation enters an evaporator of the heat pump module, so that the evaporator is utilized to carry out thermal evaporation on the working medium of the heat pump, and finally enters the compressor and the condenser to carry out heat recovery, and then enters the evaporator again to carry out thermal evaporation again.
The phase change heat storage barrel 4 comprises a heat insulation outer barrel 41 and a heat conduction inner container 42 fixed on the inner side of the heat insulation outer barrel through a support piece; the heat-conducting inner container 42 is of a closed structure; a U-shaped pipe 43 is arranged in the heat conduction inner container 42; two ends of the U-shaped pipe 43 are connected to a water inlet flange and a water discharge flange outside the heat-insulating outer cylinder 41; a PCM phase change energy storage material layer 44 is filled in the heat conduction inner container 42; a heat medium leading-in flange is arranged at the lower part of the heat-insulating outer cylinder 41; and a heat medium leading-out flange is arranged at the upper part of the heat-insulating outer cylinder 41. The heat-conducting inner container 42 is a glass inner tube or a metal inner tube. The heat-insulating barrel body 1 is provided with a water replenishing pipe 111 and a liquid level valve 112, and cold water can be automatically pumped in when the liquid level is too low.
The above-mentioned embodiment is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles of the present invention are included in the claims of the present invention.

Claims (4)

1. A geothermal water cascade utilization system, characterized by: the system comprises a PLC controller and a first-order heat storage module which control the whole system, a temperature adjusting system connected with the output end of the first-order heat storage module, a second-order heat pump module connected with the temperature adjusting system, and a third-order heat preservation water storage module connected with the first-order heat storage module, the second-order heat pump module and the temperature adjusting system;
the three-order heat-preservation water storage module comprises a heat-preservation barrel body and a polyurethane heat-preservation outer layer arranged outside the heat-preservation barrel body; the lower part of the inner side of the heat-insulating barrel body is provided with a horizontal spiral pipe; two ends of the horizontal spiral pipe are respectively connected to two flange interfaces outside the heat-insulating barrel body;
the first-order heat storage module comprises a plurality of phase change heat storage barrels, and a heat medium leading-in flange of each phase change heat storage barrel is connected to a heat medium first main pipe through a first electric control valve; the heat medium first main pipe is connected to a geothermal water supply end through a first pump body; the heat medium outlet flange of each phase change heat storage barrel is connected to the second heat medium main pipe; the temperature regulating system is connected with the heat medium second main pipe; a first temperature transmitter is arranged on the heat medium second main pipe; the water inlet flange of each phase-change heat storage barrel is connected to the first water pipe through a second electric control valve; the first water pipe is connected to the bottom of the inner side of the heat-insulating barrel body through a second pump body; the drainage flange of each phase change heat storage barrel is connected to the second water pipe; a second temperature transmitter is arranged on the second water pipe; the second water pipe is connected to the high-temperature heat supply end;
the temperature adjusting system comprises a cylindrical barrel, and a vertical spiral pipe is arranged on the inner side of the cylindrical barrel; two ends of the vertical spiral pipe are connected to an upper flange interface and a lower flange interface outside the cylindrical barrel; the upper flange interface is connected to the second main heat medium pipe, and an inlet and an outlet are arranged on the cylindrical barrel; the inlet is connected to the heat-insulating barrel body through a circulating pump, and the outlet is directly connected to the heat-insulating barrel body;
the second-order heat pump module comprises a heat pump module, and an inlet of an evaporator heat exchange end of the heat pump module is connected to a lower flange interface of the temperature regulating system; an outlet of a heat exchange end of an evaporator of the heat pump module is connected to a flange interface of the heat preservation barrel body; and the other flange interface of the heat-insulating barrel body is connected to the outer discharge end.
2. The geothermal water cascade utilization system of claim 1, wherein: the phase change heat storage barrel comprises a heat insulation outer barrel and a heat conduction inner container fixed on the inner side of the heat insulation outer barrel through a support piece; the heat-conducting inner container is of a closed structure; a U-shaped pipe is arranged inside the heat-conducting inner container; two ends of the U-shaped pipe are connected to a water inlet flange and a water discharge flange outside the heat-insulating outer cylinder; a PCM phase change energy storage material layer is filled in the heat conduction inner container; a heat medium leading-in flange is arranged at the lower part of the heat-insulating outer cylinder; and a heat medium guiding flange is arranged at the upper part of the heat-insulating outer cylinder.
3. The geothermal water step utilization system of claim 2, wherein: the heat conduction inner container is a glass inner tube or a metal inner tube.
4. The geothermal water cascade utilization system of claim 1, wherein: and a water replenishing pipe and a liquid level valve are arranged on the heat-insulating barrel body.
CN202021038588.7U 2020-06-09 2020-06-09 Geothermal water cascade utilization system Active CN212511896U (en)

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Application Number Priority Date Filing Date Title
CN202021038588.7U CN212511896U (en) 2020-06-09 2020-06-09 Geothermal water cascade utilization system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021038588.7U CN212511896U (en) 2020-06-09 2020-06-09 Geothermal water cascade utilization system

Publications (1)

Publication Number Publication Date
CN212511896U true CN212511896U (en) 2021-02-09

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Application Number Title Priority Date Filing Date
CN202021038588.7U Active CN212511896U (en) 2020-06-09 2020-06-09 Geothermal water cascade utilization system

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Country Link
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