CN211716919U - Hydrothermal geothermal resource development and utilization system - Google Patents
Hydrothermal geothermal resource development and utilization system Download PDFInfo
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- CN211716919U CN211716919U CN202020402055.6U CN202020402055U CN211716919U CN 211716919 U CN211716919 U CN 211716919U CN 202020402055 U CN202020402055 U CN 202020402055U CN 211716919 U CN211716919 U CN 211716919U
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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Abstract
The utility model provides a hydrothermal type geothermal resource development utilizes system, including mining water processing apparatus, the processing apparatus of reinjection water, heat pump system, install heat pump system between mining water processing apparatus and the processing apparatus of reinjection water, two geothermal wells are as mining well or reinjection well respectively, can carry out the switching of heat supply and refrigeration mode, carry out the reciprocal heat supply of circulation and refrigeration, prevented the emergence of hydrothermal type geothermal resource development engineering heat breakthrough problem, make hydrothermal type geothermal resource optimize for heat supply and refrigeration compromise the mode by single heat supply mode simultaneously, it is higher to geothermal utilization ratio, in addition, two wells are as mining well or reinjection well respectively, can prevent the reinjection jam problem, need prevent stopping up the well-flushing maintenance to the reinjection well specially under the single heat supply mode, and the cost is saved.
Description
Technical Field
The utility model relates to a geothermal resource technical field, in particular to hydrothermal type geothermal resource development utilizes system.
Background
At present, the development and utilization of hydrothermal geothermal resources are mainly used for heat supply, geothermal water is extracted from a production well in a development and utilization mode, heat is provided for the tail end of a user (such as building heating, a greenhouse and the like) in a direct or indirect mode, and then the low-temperature geothermal tail water after heat extraction is subjected to same-layer recharging through a recharging well, so that negative effects such as thermal pollution or water chemical pollution on the ground environment are avoided, and meanwhile, the problem of reservoir geothermal water resource exhaustion is prevented.
The main problems existing in the previous development and utilization modes are that the heat storage temperature around the recharging well can be obviously reduced through recharging, the original temperature can not be recovered within a long time, the recovery rate is extremely low, the low-temperature field range around the recharging well can be continuously expanded under the long-term recharging condition, finally, heat breakthrough occurs to influence the effluent temperature of the exploitation well, the geothermal development engineering efficiency is reduced, the operation cost is increased, and even scrapping is caused under serious conditions.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a hydrothermal type geothermal resource development utilizes system is reached by following specific technological means:
a hydrothermal geothermal resource development and utilization system comprises a mining water treatment device, a recharge water treatment device, a heat pump system and a user terminal, wherein the heat pump system is arranged between the mining water treatment device and the recharge water treatment device;
preferably, the mining water treatment device and the reinjection water treatment device are respectively connected with different geothermal wells;
preferably, the mining water treatment device mainly comprises a water-gas separation device, a desanding treatment device, an ultrafiltration membrane component and a degassing device;
preferably, the recharge water treatment device mainly comprises a coarse filtration device, a fine filtration device and a degassing device;
preferably, the heat pump system mainly comprises an evaporator, a condenser, a compressor and an expansion valve.
The utility model discloses a theory of operation and process:
s1, heating development and utilization mode: extracting geothermal water from a No. 1 geothermal well, treating crude oil, combustible gas, toxic gas and fine sand grains which are not beneficial to safety development and recharge and are contained in the water through a water-gas separation device, a desanding treatment device, an ultrafiltration membrane component and a degassing device according to the composition characteristics and the dissolved substance characteristics of the geothermal water, extracting heat for the tail end of a user through a heat pump technology, reducing the temperature of the geothermal water to 10-15 ℃ after providing heat, determining the specific temperature according to refrigeration requirements and economy, removing suspended particles, microorganisms and gases from low-temperature tail water through a coarse filtration device, a fine filtration device and a degassing device, and recharging the low-temperature tail water through a No. 2 geothermal well;
s2, refrigeration development and utilization mode: after primary heat supply development, a low-temperature water distribution area is formed at the periphery of a reservoir of the No. 2 geothermal well, the mode is opposite to that of heat supply, low-temperature water is extracted from the No. 2 geothermal well during refrigeration, crude oil, combustible gas, toxic gas and fine sand grains are processed and then refrigerated through a heat pump technology for use at the tail end of a user, meanwhile, heat at the tail end of the user is transferred into the low-temperature water, so that the temperature of the low-temperature geothermal water is increased to be not lower than that of the reservoir and is changed into high-temperature water, and then the high-temperature water is refilled through the No. 1 geothermal well after suspended particles, microorganisms and gases are removed.
So, two geothermal wells are as exploitation well or recharge well respectively, can carry out the switching of heat supply and refrigeration mode, carry out the reciprocal heat supply of circulation and refrigeration, the emergence of hydrothermal type geothermal resource development engineering heat breakthrough problem has been prevented, make hydrothermal type geothermal resource give consideration to the mode for heat supply and refrigeration by single heat supply mode optimization simultaneously, it is higher to the utilization ratio of geothermol power, in addition, two wells are as exploitation well or recharge well respectively, can prevent recharging jam problem, compare and need to block up well-flushing maintenance specially to recharge well under the single heat supply mode, the cost is saved.
The utility model discloses possess following beneficial effect:
1. this hydrothermal type geothermal resource development utilizes system through setting up two geothermal wells, carries out the switching of heat supply and refrigeration mode, has prevented the emergence of hydrothermal type geothermal resource development engineering heat breakthrough problem.
2. This hydrothermal type geothermal resource development utilizes system makes hydrothermal type geothermal resource give consideration to the mode for heat supply and refrigeration from single heat supply mode optimization, and is higher to the utilization ratio of geothermol power.
3. This hydrothermal type geothermal resources development utilizes system, under heating mode and the refrigeration mode, two wells are as exploitation well or recharging well respectively, can prevent to recharge the jam problem, compare and need to prevent blockking up well-flushing maintenance to recharging well specially under the single heat supply mode, practiced thrift the cost.
Drawings
FIG. 1 is a flow chart of the heat supply development mode of the present invention;
fig. 2 is a flow chart of the refrigeration development mode of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 and 2, a hydrothermal geothermal resource development and utilization system includes a produced water treatment device, a recharge water treatment device, a heat pump system and a user terminal, wherein the heat pump system is installed between the produced water treatment device and the recharge water treatment device, the produced water treatment device and the recharge water treatment device are respectively connected with different geothermal wells, the produced water treatment device mainly includes a water-gas separation device, a desanding treatment device, an ultrafiltration membrane module and a degassing device, the recharge water treatment device mainly includes a coarse filtration device, a fine filtration device and a degassing device, and the heat pump system mainly includes an evaporator, a condenser, a compressor and an expansion valve.
The heat pump type geothermal resource exploitation and utilization device mainly utilizes the characteristic that the temperature recovery rate of a reservoir of a recharge well is extremely low, changes defects into advantages, utilizes a heat pump technology to design a new geothermal resource exploitation and utilization mode, can be used for supplying heat and refrigerating, can effectively solve the problem of heat breakthrough, and promotes the more efficient exploitation and utilization of geothermal resources.
The utility model discloses theory of operation and process:
s1, heating development and utilization mode: extracting geothermal water from a No. 1 geothermal well, treating crude oil, combustible gas, toxic gas and fine sand grains which are not beneficial to safety development and recharge and are contained in the water through a water-gas separation device, a desanding treatment device, an ultrafiltration membrane component and a degassing device according to the composition characteristics and the dissolved substance characteristics of the geothermal water, extracting heat for the tail end of a user through a heat pump technology, reducing the temperature of the geothermal water to 10-15 ℃ after providing heat, determining the specific temperature according to refrigeration requirements and economy, removing suspended particles, microorganisms and gases from low-temperature tail water through a coarse filtration device, a fine filtration device and a degassing device, and recharging the low-temperature tail water through a No. 2 geothermal well;
s2, refrigeration development and utilization mode: after primary heat supply development, a low-temperature water distribution area is formed at the periphery of a reservoir of the No. 2 geothermal well, the mode is opposite to that of heat supply, low-temperature water is extracted from the No. 2 geothermal well during refrigeration, crude oil, combustible gas, toxic gas and fine sand grains are processed and then refrigerated through a heat pump technology for use at the tail end of a user, meanwhile, heat at the tail end of the user is transferred into the low-temperature water, so that the temperature of the low-temperature geothermal water is increased to be not lower than that of the reservoir and is changed into high-temperature water, and then the high-temperature water is refilled through the No. 1 geothermal well after suspended particles, microorganisms and gases are removed.
So, two geothermal wells are as exploitation well or recharge well respectively, can carry out the switching of heat supply and refrigeration mode, carry out the reciprocal heat supply of circulation and refrigeration, the emergence of hydrothermal type geothermal resource development engineering heat breakthrough problem has been prevented, make hydrothermal type geothermal resource give consideration to the mode for heat supply and refrigeration by single heat supply mode optimization simultaneously, it is higher to the utilization ratio of geothermol power, in addition, two wells are as exploitation well or recharge well respectively, can prevent recharging jam problem, compare and need to block up well-flushing maintenance specially to recharge well under the single heat supply mode, the cost is saved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a hydrothermal type geothermal resource development utilizes system, includes mining water processing apparatus, the processing apparatus of reinjection water, heat pump system and user end, its characterized in that: and a heat pump system is arranged between the mining water treatment device and the recharge water treatment device.
2. The hydrothermal geothermal resource exploitation and utilization system of claim 1, wherein: the mining water treatment device and the reinjection water treatment device are respectively connected with different geothermal wells.
3. The hydrothermal geothermal resource exploitation and utilization system of claim 1, wherein: the mining water treatment device mainly comprises a water-gas separation device, a desanding treatment device, an ultrafiltration membrane component and a degassing device.
4. The hydrothermal geothermal resource exploitation and utilization system of claim 1, wherein: the recharge water treatment device mainly comprises a coarse filtering device, a fine filtering device and a degassing device.
5. The hydrothermal geothermal resource exploitation and utilization system of claim 1, wherein: the heat pump system mainly comprises an evaporator, a condenser, a compressor and an expansion valve.
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| CN202020402055.6U CN211716919U (en) | 2020-03-26 | 2020-03-26 | Hydrothermal geothermal resource development and utilization system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271899A (en) * | 2020-03-26 | 2020-06-12 | 山东省地勘局第二水文地质工程地质大队(山东省鲁北地质工程勘察院) | Hydrothermal geothermal resource development and utilization system and development and utilization method thereof |
| CN113091336A (en) * | 2021-04-02 | 2021-07-09 | 中石化绿源地热能(陕西)开发有限公司 | Hydrothermal geothermal exploitation system and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271899A (en) * | 2020-03-26 | 2020-06-12 | 山东省地勘局第二水文地质工程地质大队(山东省鲁北地质工程勘察院) | Hydrothermal geothermal resource development and utilization system and development and utilization method thereof |
| CN113091336A (en) * | 2021-04-02 | 2021-07-09 | 中石化绿源地热能(陕西)开发有限公司 | Hydrothermal geothermal exploitation system and method |
| CN113091336B (en) * | 2021-04-02 | 2024-05-14 | 西安交通大学 | Water-heating geothermal development system and method |
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