CN210286943U - Geothermal tail water desalination recycling treatment system - Google Patents
Geothermal tail water desalination recycling treatment system Download PDFInfo
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- CN210286943U CN210286943U CN201920941367.1U CN201920941367U CN210286943U CN 210286943 U CN210286943 U CN 210286943U CN 201920941367 U CN201920941367 U CN 201920941367U CN 210286943 U CN210286943 U CN 210286943U
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Images
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a geothermal tail water desalination recycling treatment system, it includes sedimentation tank, buffer pool, elevator pump, shallow layer medium filter, precision filter, refined processing apparatus and catch basin, the elevator pump sets up between buffer pool and shallow layer medium filter, precision filter, refined processing apparatus and catch basin loop through the pipeline and realize intercommunication each other; the refining treatment device comprises an ultrafiltration device and a reverse osmosis filter, the precision filter is communicated with a water inlet of the ultrafiltration device through a pipeline, a recovery port of the ultrafiltration device is communicated with a geothermal tail water source, a water outlet of the ultrafiltration device is communicated with the reverse osmosis filter, a recovery port of the reverse osmosis filter is communicated with the geothermal tail water source, and a water outlet of the reverse osmosis filter is communicated with a water collecting tank. The technical scheme provided by the utility model, rational in infrastructure, effectively get rid of geothermol power tail aquatic pollutant and accomplish the desalination, make quality of water reach the reuse water requirement.
Description
Technical Field
The utility model relates to a geothermol power tail water treatment technical field especially relates to a geothermol power tail water desalination retrieval and utilization processing system.
Background
In recent years, China vigorously promotes ecological civilization construction, energy structures are continuously adjusted and optimized, and deep well geothermal technology becomes a new emerging energy industry. Geothermal water is an important water resource as a carrier of geothermal energy. At present, the main approach for developing and utilizing geothermal water is geothermal heating, but the important recognition that tail water thermal pollution and water quality pollution are generated in the process of utilizing geothermal water and the cascade comprehensive utilization of the tail water is insufficient, so that the development and utilization of geothermal resources are restricted.
Generally, geothermal water basically has no suspended matters, has low pollution index SDI and turbidity, belongs to micro-polluted water, and can be applied to various purposes such as irrigation, municipal administration, bathing and the like after being properly treated. However, under the influence of geological conditions and seawater invasion, geothermal water not only has high salt content, but also has high hardness, the direct discharge of geothermal tail water can cause water environment pollution, the salinization degree of local soil can be increased, and only the tail water from heating is desalted and unhardened, the tail water can be discharged or used as urban miscellaneous water.
Patent No. CN202682923U discloses a geothermal tail water recharging system, which consists of a floater treatment filtering device, a solid particle filtering device and a nitrogen protection device, geothermal water pumped from a geothermal well is heated by a heating device and then pumped into the recharging well by a pipeline pump, a geothermal tail water treatment system is arranged between the heating device and the pipeline pump, and the geothermal well, a plate heat exchanger, the geothermal tail water treatment system and the recharging well form a closed circulation system. The system can greatly improve the geothermal recharging amount and prolong the duration of geothermal recharging, is a powerful measure for ensuring the circulation of geothermal resources and sustainable development, and has important significance for the protection of geothermal resources, the reduction of resource waste, the prolongation of the service life of a production well, the reduction of environmental pollution and the like.
Patent number CN208108263U discloses a hydrothermal geothermal heating bathing and snow melting composite system. The system comprises a mining well, a recharge well, a water pump, a back-up pump, a recharge exchange valve group, a sand remover, a heating heat exchanger, a bathing heat exchanger, a water replenishing heat exchanger, a snow melting pipeline, a bathing heat storage water tank, a bathing tail end, a bathing circulating pump, a heating circulating pump, a geothermal raw water pipe, a geothermal primary tail water pipe, a geothermal secondary tail water pipe, a geothermal tertiary tail water pipe, a geothermal tail water recharge pipe, a heating water supply pipe, a heating water return pipe, a bathing water supply pipe, a bathing softened water heating pipe and a bathing softened water pipe; the utility model discloses a compound system is utilized to the geothermol power step, adopts "indirect heat transfer, adopts and irritates balanced" technology, and the heat energy that draws the geothermol power aquatic through heat transfer technique carries out the heat exchange, and the geothermol power tail water after final heat transfer realizes 100% with the airtight recharge of layer through "one adopts one to irritate" technological means, has single well heating load maximize, economic environmental protection, simple and practical characteristics.
Patent number CN206730631U discloses an automatic back-washing pre-filtering device and system for geothermal tail water recharge, the device includes: the side wall of the tank body is provided with a liquid inlet and a liquid outlet, and the bottom of the tank body is provided with a sewage outlet; a flower disc bearing piece is arranged on the inner wall of the tank body; the filter element mounting faceplate is fixedly connected with the faceplate bearing piece and is provided with a plurality of filter element mounting holes; the detachable top cover is arranged on the tank body, and a backwashing air inlet and an exhaust overflow port are formed in the detachable top cover; the utility model provides a device and system can carry out continuous prefiltration to geothermol power recharge tail water to can realize full-automatic back flush, the back flush uses compressed air as recoil medium and power, only consumes a small amount of geothermal water, and the back flush is weak point consuming time, simultaneously the utility model provides a device and system can not bring the air into in the system in service.
Patent No. CN105016501B discloses a method for treating geothermal tail water containing high boron. Geothermal tail water is firstly processed by a boron removal pre-filter and a boron removal filter, and then is processed by ceramic membrane ultrafiltration and multistage reverse osmosis. The prefilter is filled with a filter medium formed by sintering activated carbon and diatomite, and the boron removal filter is filled with a boron removal adsorption resin containing multivalent alcohol groups and amino groups; the boron removal filter uses a fiber filter screen to isolate filter materials, and geothermal tail water enters from the lower part and rises from the higher part. When the boron content of the geothermal tail water is 100mg/L, the boron removal rate is more than or equal to 99.6 percent, and the effluent quality can respectively reach the wastewater discharge standard and the drinking water or farmland irrigation water quality standard. The treatment method has good boron removal effect, reduces the equipment investment cost and the operating cost, and improves the resource utilization level of the geothermal tail water.
The existing geothermal tail water treatment technology has complex process, higher cost and unsatisfactory desalination effect, and the water quality after treatment can not reach the urban miscellaneous standard. Therefore, it is necessary to design a system for desalting and recycling geothermal tail water to solve the problems in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above technical problem, the utility model provides a pair of geothermal tail water desalination retrieval and utilization processing system, its is rational in infrastructure, effectively gets rid of geothermal tail aquatic pollutant and accomplishes the desalination and handle, makes quality of water reach the reuse water requirement, has reduced environmental pollution, has realized the cyclic utilization of water resource.
In order to solve the technical problem, the utility model provides a geothermal tail water desalination recycling treatment system, including sedimentation tank, buffer pool, elevator pump, shallow media filter, precision filter, refined processing apparatus and catch basin, the elevator pump sets up between buffer pool and shallow media filter, precision filter, refined processing apparatus and catch basin loop through the pipeline and realize intercommunication each other; the refining treatment device comprises an ultrafiltration device and a reverse osmosis filter, the precision filter is communicated with a water inlet of the ultrafiltration device through a pipeline, a recovery port of the ultrafiltration device is communicated with a geothermal tail water source, a water outlet of the ultrafiltration device is communicated with the reverse osmosis filter, a recovery port of the reverse osmosis filter is communicated with the geothermal tail water source, and a water outlet of the reverse osmosis filter is communicated with a water collecting tank.
Preferably, the sedimentation tank is of a square tank body structure, a plurality of partition plates are arranged in the middle of the sedimentation tank, the partition plates enable the sedimentation tank to form a plurality of interval sections, and lime, soda ash and flocculating agents are respectively placed in each interval section.
Preferably, the shallow medium filter is a quartz sand filter.
Preferably, the filtering precision of the shallow medium filter is not lower than 50 μm.
Preferably, the water inlet end and the water outlet end of the shallow medium filter are respectively provided with a first pressure gauge and a second pressure gauge.
Preferably, the ultrafiltration device comprises a plurality of groups of ultrafiltration modules, and the ultrafiltration modules are connected in parallel between the water outlet pipeline of the precision filter and the water return pipeline of the geothermal tail water source.
Preferably, the reverse osmosis filter comprises a plurality of groups of reverse osmosis modules and a collecting module, the reverse osmosis modules are arranged between a water outlet pipeline and a water collecting tank of the ultrafiltration device in parallel, the plurality of groups of reverse osmosis modules are connected with the collecting module through pipelines, the collecting module is provided with a recovery port, and the recovery port is communicated with the geothermal tail water source through a pipeline.
Preferably, the water inlet end and the water outlet end of the refining treatment device are respectively provided with a third pressure gauge and a fourth pressure gauge.
Preferably, a fifth pressure gauge is arranged on a pipeline between the ultrafiltration device and the reverse osmosis filter.
The utility model discloses beneficial effect:
the utility model provides a geothermol power tail water desalination retrieval and utilization processing system, its is rational in infrastructure, and convenient operation can effectively get rid of pollutant and accomplish the desalination in the geothermol power tail water and handle, makes quality of water reach the reuse water requirement, has reduced environmental pollution, has realized the cyclic utilization of water resource.
Drawings
The above advantages of the present invention will become more apparent and more readily appreciated from the detailed description taken in conjunction with the following drawings, which are given by way of illustration only and do not limit the present invention, and in which:
FIG. 1 is a schematic structural view of a geothermal tail water desalination and reuse treatment system according to the present invention;
FIG. 2 is a schematic structural view of the sedimentation tank of the present invention;
FIG. 3 is a schematic view of the connection between the shallow media filter and the fine filter according to the present invention;
FIG. 4 is a schematic view of the structure of the refining apparatus of the present invention.
In the figure:
10. a sedimentation tank; 11. a partition plate; 12. a spacer section; 20. a buffer pool; 30. a lift pump; 40. a shallow media filter; 41. a first pressure gauge; 42. a second pressure gauge; 50. performing precision filtration; 51. a water outlet pipeline; 60. an ultrafiltration device; 61. an ultrafiltration module; 62. a recovery pipeline; 63. a third pressure gauge; 64. a fourth pressure gauge; 65. a fifth pressure gauge; 70. a reverse osmosis filter; 71. a reverse osmosis module; 72. a collection module; 80. a water collecting tank.
Detailed Description
The present invention will be described in detail with reference to the following embodiments and accompanying drawings.
The embodiments described herein are specific embodiments of the present invention, and are intended to be illustrative of the concepts of the present invention, which are intended to be illustrative and exemplary, and should not be construed as limiting the scope of the embodiments of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.
The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of the respective portions and the mutual relationships thereof. Note that, in order to clearly show the structure of each component of the embodiment of the present invention, the same reference numerals are used to denote the same parts.
The structural schematic diagram of the geothermal tail water desalination and reuse treatment system is shown in fig. 1 and 4, and comprises a sedimentation tank 10, a buffer tank 20, a lift pump 30, a shallow medium filter 40, a precision filter 50, a refining treatment device and a water collecting tank 80, wherein the lift pump 30 is arranged between the buffer tank 20 and the shallow medium filter 40, the precision filter 50, the refining treatment device and the water collecting tank 80 are sequentially communicated with each other through pipelines; the refining treatment device comprises an ultrafiltration device 60 and a reverse osmosis filter 70, wherein the precision filter 50 is communicated with a water inlet of the ultrafiltration device 60 through a pipeline, a recovery port of the ultrafiltration device 60 is communicated with a geothermal tail water source, a water outlet of the ultrafiltration device 60 is communicated with the reverse osmosis filter 70, a recovery port of the reverse osmosis filter 70 is communicated with the geothermal tail water source, and a water outlet of the reverse osmosis filter 70 is communicated with a water collecting tank 80.
Fig. 2 is the structure diagram of the sedimentation tank of the utility model, the sedimentation tank 10 is a square groove structure, the middle part of which is provided with a plurality of baffles 11, the baffle 11 that is arranged makes the sedimentation tank 10 form a plurality of compartments 12, and lime, soda ash and flocculating agent are respectively placed at each compartment 12. In the embodiment shown in fig. 2, the number of the partition boards 11 is three, the sedimentation tank 10 is formed into four partition sections 12, lime, soda ash, flocculating agent and the like are respectively arranged in each partition section 12, and after the geothermal tail water static sedimentation tank is treated, the contents of suspended matters, colloidal substances, chromaticity, organic matters, microorganisms and the like in water are obviously reduced; a sediment discharge port is provided at the lower portion of the settling tank 10 shown in fig. 2, and sediment in the settling tank 10 can be periodically cleaned and discharged through the sediment discharge port.
The shallow medium filter 40 is a quartz sand filter, which uses quartz sand as a filter medium, and filters water with high turbidity through granular or non-granular quartz sand with a certain thickness under a certain pressure, so as to effectively intercept and remove suspended matters, organic matters, colloidal particles, microorganisms, chlorine, odor, partial heavy metal ions and the like in the water, and finally achieve the effects of reducing water turbidity and purifying water quality. The filtering accuracy of the shallow medium filter 40 is not less than 50 μm.
The precise filter 50 intercepts particles with a size larger than 5 mu m in water and prevents the particles from entering a subsequent refining treatment device, and a scale inhibitor is added in front of the precise filter 50 to prevent the occurrence of the scaling phenomena of silicon scale and sulfate and ensure the good operation of the precise filter 50.
Fig. 3 is a schematic view of the connection between the shallow media filter and the precision filter of the present invention, wherein the water inlet end and the water outlet end of the shallow media filter 40 are respectively provided with a first pressure gauge 41 and a second pressure gauge 42. When the pressure difference between the first pressure gauge 41 and the second pressure gauge 42 exceeds 2.5bar, the shallow medium filter 40 executes a back flushing program to ensure the operation effect of the shallow medium filter 40 and effectively remove impurities in the geothermal tail water.
Fig. 4 is a schematic structural diagram of the refining treatment device of the present invention, the ultrafiltration device 60 includes a plurality of ultrafiltration modules 61, the ultrafiltration modules 61 are connected in parallel between the water outlet pipe 51 of the precision filter 50 and the return water pipe 62 of the geothermal tail water source, and the plurality of ultrafiltration modules 61 intercept the high molecular substances, colloid, protein, particles and the like in water. In the embodiment shown in fig. 1, the number of the ultrafiltration modules 61 is 24, and it may be other numbers, such as 12, 36, 8, etc., as long as the indexes are qualified after the multiple ultrafiltration modules 61 are connected in parallel to the tail water for filtration.
The reverse osmosis filter 70 comprises a plurality of groups of reverse osmosis modules 71 and a collection module 72, the reverse osmosis modules 71 are arranged between a water outlet pipeline of the ultrafiltration device 60 and the water collecting tank 80 in parallel, the plurality of groups of reverse osmosis modules 71 are connected with the collection module 72 through pipelines, the collection module 72 is provided with a recovery port, the recovery port is communicated with a geothermal tail water source through a pipeline, the reverse osmosis filter 70 mainly carries out desalination treatment on water, and finally, recyclable urban miscellaneous water is produced.
In the application, the water inlet end and the water outlet end of the refining treatment device are respectively provided with a third pressure gauge 63 and a fourth pressure gauge 64, and a fifth pressure gauge 65 is arranged on a pipeline between the ultrafiltration device 60 and the reverse osmosis filter 70. The operation condition of the geothermal tail water desalting and recycling treatment system can be realized by monitoring the change of the pressure gauge on the pipeline. Specifically, after the fluid in the outlet pipe 51 of the ultrafilter 50 passes through the refining treatment device, the pressure change of the fluid is constantly and basically stable, if the refining treatment device has a fault, such as the ultrafiltration module 61 needs to be replaced, the reverse osmosis module 71 needs to be replaced, and the like, the fourth pressure gauge 64 will change, and the operation condition of the geothermal tail water desalination and reuse treatment system can be qualitatively monitored by monitoring the change of the fourth pressure gauge.
The utility model discloses in, the tail water that forms through the multiple-layer filtering collects at catch basin 80 to be used for people's daily use, and those not up to standard tail water flow back once more to the operation that geothermol power tail water was used for geothermal heating system, under the prerequisite of reasonable control pollution sources, realize the recycling of geothermol power tail water.
After the geothermal tail water is precipitated by the sedimentation tank 10, the geothermal tail water is buffered by the buffer tank 20 under the action of the lift pump 30 and then enters the shallow medium filter 40 for shallow medium filtration, so that suspended matters, organic matters, colloidal particles, microorganisms, chlorine, odor, partial heavy metal ions and the like in the water are effectively intercepted and removed, and the effects of reducing the water turbidity and purifying the water quality are finally achieved; then particles larger than 5 μm contained in the water are retained by the ultrafilter 50 and prevented from entering a subsequent refining treatment device; then enters an ultrafiltration device 60 through a water outlet pipeline 51, and polymer substances, colloid, protein, particles and the like in water are intercepted through a plurality of groups of ultrafiltration modules 61; then enters the reverse osmosis module 71 of the reverse osmosis filter 70, the unqualified water treated by the multiple groups of reverse osmosis modules 71 enters the collection module 72, and enters the geothermal tail water source through the recovery port of the collection module 72, and the treated urban service water enters the water collecting tank 80 through the water outlet of the reverse osmosis filter 70 for standby. The reverse osmosis filter 70 of the collection module 72 is primarily used for desalination of water to produce reusable municipal utility water.
The utility model provides a pair of geothermal tail water desalination retrieval and utilization processing system, its is rational in infrastructure, effectively gets rid of geothermal tail aquatic pollutant and accomplishes the desalination, makes quality of water reach the reuse water requirement, has reduced environmental pollution, has realized the cyclic utilization of water resource, has better spreading value.
The present invention is not limited to the above embodiments, and any person can obtain other products in various forms without departing from the scope of the present invention, but any change in shape or structure is included in the technical solution that is the same as or similar to the present invention.
Claims (9)
1. The system for desalting and recycling the geothermal tail water comprises a sedimentation tank, a buffer tank, a lifting pump, a shallow medium filter, a precision filter, a refining treatment device and a water collecting tank, and is characterized in that the lifting pump is arranged between the buffer tank and the shallow medium filter, the precision filter, the refining treatment device and the water collecting tank are communicated with each other sequentially through pipelines; the refining treatment device comprises an ultrafiltration device and a reverse osmosis filter, the precision filter is communicated with a water inlet of the ultrafiltration device through a pipeline, a recovery port of the ultrafiltration device is communicated with a geothermal tail water source, a water outlet of the ultrafiltration device is communicated with the reverse osmosis filter, a recovery port of the reverse osmosis filter is communicated with the geothermal tail water source, and a water outlet of the reverse osmosis filter is communicated with a water collecting tank.
2. The system for desalination and recycling of geothermal tail water according to claim 1, wherein the sedimentation tank has a square tank structure, a plurality of partition plates are arranged in the middle of the sedimentation tank, the partition plates are arranged to form a plurality of compartments in the sedimentation tank, and lime, soda ash and flocculating agent are respectively placed in each compartment.
3. The geothermal tail water desalination and reuse treatment system of claim 1, wherein the shallow media filter is a quartz sand filter.
4. The geothermal tail water desalination and reuse treatment system according to claim 3, wherein the filtration precision of the shallow media filter is not lower than 50 μm.
5. The geothermal tail water desalination and reuse treatment system according to claim 3, wherein a first pressure gauge and a second pressure gauge are respectively disposed at a water inlet end and a water outlet end of the shallow medium filter.
6. The geothermal tail water desalination and reuse treatment system according to claim 1, wherein the ultrafiltration device comprises a plurality of groups of ultrafiltration modules, and the ultrafiltration modules are connected in parallel between a water outlet pipeline of the precision filter and a water return pipeline of the geothermal tail water source.
7. The geothermal tail water desalination and recycling treatment system according to claim 1, wherein the reverse osmosis filter comprises a plurality of groups of reverse osmosis modules and a collection module, the reverse osmosis modules are arranged between a water outlet pipeline of the ultrafiltration device and the water collecting tank in parallel, the plurality of groups of reverse osmosis modules are connected with the collection module through pipelines, the collection module is provided with a recovery port, and the recovery port is communicated with a geothermal tail water source through a pipeline.
8. The system of claim 1, wherein a third pressure gauge and a fourth pressure gauge are respectively disposed at the water inlet end and the water outlet end of the refining device.
9. The geothermal tail water desalination and reuse treatment system according to claim 8, wherein a fifth pressure gauge is disposed on a pipeline between the ultrafiltration device and the reverse osmosis filter.
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| CN201920941367.1U CN210286943U (en) | 2019-06-21 | 2019-06-21 | Geothermal tail water desalination recycling treatment system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114804446A (en) * | 2022-06-10 | 2022-07-29 | 山东华芯环保科技有限公司 | Geothermal supply wastewater treatment circulating system and wastewater treatment method |
| CN115218261A (en) * | 2021-04-19 | 2022-10-21 | 中国石油化工集团有限公司 | Medium-deep geothermal direct energy supply system based on ion removal |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115218261A (en) * | 2021-04-19 | 2022-10-21 | 中国石油化工集团有限公司 | Medium-deep geothermal direct energy supply system based on ion removal |
| CN115218261B (en) * | 2021-04-19 | 2024-05-10 | 中国石油化工集团有限公司 | Middle-deep geothermal energy direct energy supply system based on ion removal |
| CN114804446A (en) * | 2022-06-10 | 2022-07-29 | 山东华芯环保科技有限公司 | Geothermal supply wastewater treatment circulating system and wastewater treatment method |
| CN114804446B (en) * | 2022-06-10 | 2024-05-28 | 青海人和通信信息技术开发有限公司 | Geothermal supply wastewater treatment circulating system and wastewater treatment method |
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