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Technological system for treating terrestrial heat tail water by utilizing tubular membrane

A process system and technology of geothermal tail water, which are applied in filtration treatment, degassed water/sewage treatment, water/sewage multi-stage treatment, etc. Low cost, high throughput and good finish

Pending Publication Date: 2018-07-24
TIANJIN HIPURE MEMBRANE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the mining and use of geothermal water, impurities will inevitably be mixed in. If it is not treated and recharged directly, suspended solids and bacteria in the water will block the cracks in the rock formation, making it impossible to recharge the geothermal tail water. Affect the exploitation and utilization of geothermal water, so the geothermal tail water needs to be filtered before recharging
The existing geothermal tail water filtration device generally only performs simple filtration, the filtration accuracy is low, and the filtered water still contains some sediment and suspended solids, which cannot meet the national requirements for recharge water quality, and urgently needs to be improved.

Method used

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  • Technological system for treating terrestrial heat tail water by utilizing tubular membrane
  • Technological system for treating terrestrial heat tail water by utilizing tubular membrane
  • Technological system for treating terrestrial heat tail water by utilizing tubular membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This embodiment is to provide a tubular membrane process system for treating geothermal tail water, which includes a cyclone desander connected in sequence through various valve bodies and pipelines, a bag filter, a tubular membrane filtration device, Degassing tank and metal descaling device; The tubular membrane filter unit includes a first-stage tubular membrane filter unit and a secondary tubular membrane filter unit connected in series through the second pipeline; the bag filter and the The first-stage tubular membrane filtration unit communicates with the first pipeline; the second-stage tubular membrane filtration unit communicates with the degassing tank through the third pipeline;

[0031] The first-stage tubular membrane filtration unit includes four first-stage tubular membrane filters connected in parallel, and the upper part of the first-stage tubular membrane filter is connected to the first pipeline through corresponding pipelines and valves, so The botto...

Embodiment 2

[0045] This embodiment provides the specific steps of using the process system in Embodiment 1 to treat geothermal tail water:

[0046] 1. Press figure 1 Connect the system piping as shown;

[0047] 2. Click the start button on the electric control box, the process system will automatically run the filtering and backwashing links according to the following steps:

[0048] (1) The geothermal tail water first enters the cyclone desander through the residual pressure to remove mechanical impurities such as large-size sediment and rust, and then enters the bag filter to further remove suspended solids, colloids and other particulate matter; this process The opening of the valve is as follows: in the automatic mode, the valve V1 needs to be opened manually first, and the valve opening of the bag filter depends on the bag filter used: if DL1 is used, V2 and V7 will be opened at the same time; if DL2 , then V3 and V8 are turned on at the same time;

[0049] (2) The geothermal tail...

Embodiment 3

[0081] In this embodiment, the geothermal tail water at 35°C is divided into 40m 3 The concrete steps that the process system of / h flow feeds embodiment 1 carries out filtering process:

[0082] (1) The geothermal tail water first passes through the residual pressure and enters the cyclone desander to remove mechanical impurities such as large-size sediment and rust blocks; then enters the bag filter to further remove suspended solids, colloids and other particulate matter;

[0083] (2) Afterwards, the geothermal tail water enters the first-stage tubular membrane filter to remove most of the suspended solids, microorganisms, colloids, rust and other impurities; the filtration accuracy of the first-stage filtration is 10 μm, and the designed membrane area is 40m 2 , the operating pressure is 0.2MPa, and after about 36 hours of operation, when the pressure difference between the inlet and outlet water reaches 0.12MPa, control the first-stage tubular membrane filters in differen...

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Abstract

The invention creatively provides a technological system for treating terrestrial heat tail water by utilizing a tubular membrane. The technological system comprises a cyclone sand remover, bag type filters, a tubular membrane filtering device, a washing tank, a washing ump, a degassing tank and an electric control device; two sets of the bag type filters are arranged; one bag type filter is usedand one bag type filter is standby, and the two bag type filters are alternatively used; the tubular membrane filtering device is divided into two grades; each grade comprises four tubular membrane filters which are arranged in parallel, three tubular membrane filters are used and one tubular membrane filter is standby; the system is provided with a thermometer, a pressure meter and a flow meter;the electric control device comprises a PLC (Programmable Logic Controller) and can realize online automatic backwashing of equipment and prevent fouling and blocking, so that stable operation of equipment is ensured. The technological system takes a tubular membrane as a core and integrates equipment including the cyclone sand remover, the bag type filters and the like to form a technology of treating the terrestrial heat tail water by utilizing a set of water treatment system; the technological system has the advantages of high integration degree, high automation degree, high treatment efficiency and long service life; water treatment can reach reinjection water quality requirements and the treatment cost of reinjection water is greatly reduced.

Description

technical field [0001] The invention belongs to the field of geothermal tail water recharge, and in particular relates to a process system for treating geothermal tail water with a tubular membrane. Background technique [0002] Geothermal resources are a kind of clean and green energy, and the development and utilization of geothermal resources is one of the important ways to solve the current energy crisis. The application of geothermal resources is becoming more and more extensive. With the increase of geothermal exploitation, geothermal resources are gradually decreasing. In order to ensure the sustainable utilization of geothermal resources, after the exploitation and utilization of geothermal resources, the remaining geothermal tail water needs to be recharged underground to replenish geothermal water, so as to make the sustainable utilization of geothermal resources. During the mining and use of geothermal water, impurities will inevitably be mixed in. If it is not t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/02C02F103/06
CPCC02F9/00C02F1/20C02F1/001C02F1/38C02F1/44C02F5/00C02F2103/06
Inventor 胡苏皓魏飞王洪超高友志刘恩华
Owner TIANJIN HIPURE MEMBRANE TECH CO LTD
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