CN218174706U - Device for treating shale gas wastewater based on disc tube type reverse osmosis membrane - Google Patents

Device for treating shale gas wastewater based on disc tube type reverse osmosis membrane Download PDF

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Publication number
CN218174706U
CN218174706U CN202121346398.6U CN202121346398U CN218174706U CN 218174706 U CN218174706 U CN 218174706U CN 202121346398 U CN202121346398 U CN 202121346398U CN 218174706 U CN218174706 U CN 218174706U
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pressing plate
diaphragm
water
reverse osmosis
shale gas
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CN202121346398.6U
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沙月华
陈俊琛
秦庆戊
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5Elem Hi Tech Corp Technology Co Ltd
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5Elem Hi Tech Corp Technology Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124Water desalination
    • Y02A20/131Reverse-osmosis

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Abstract

The invention discloses a device for treating shale gas wastewater based on a disc-tube reverse osmosis membrane, which comprises a shell, wherein an upper pressing plate and a lower pressing plate are arranged inside the shell, a central screw is vertically arranged at the central positions of the upper pressing plate and the lower pressing plate, a clear water outlet is arranged on the side surface of an upper positioning cushion block above the central screw, a water inlet, a flushing water supply pipe and a concentrated solution outlet are respectively arranged on the upper plane of the upper pressing plate, a flushing drain pipe is arranged on the lower pressing plate, an S-shaped flow guide disc and a diaphragm are arranged between the upper pressing plate and the lower pressing plate, one end of the diaphragm is horizontally arranged between clamping blocks, springs are arranged at the contact positions of the clamping blocks and the diaphragm, a clear water channel is arranged between the clamping blocks and the central screw, the clear water channel extends upwards and is communicated with the clear water outlet, a plurality of convex points are uniformly arranged on the surface of the flow guide disc, and the diaphragm is horizontally arranged between the flow guide discs.

Description

Device for treating shale gas wastewater based on disc tube type reverse osmosis membrane
Technical Field
The invention belongs to the technical field of water purification equipment, and particularly relates to a device for treating shale gas wastewater based on a disc tube type reverse osmosis membrane.
Background
Shale gas is an unconventional natural gas resource and has huge geological reserves. The fracturing process of exploiting shale gas needs to use a large amount of water, and taking a single shale gas horizontal well in the Sichuan basin in China as an example, the fracturing exploitation needs to use 2 to 3 ten thousand square meters of water. In the process of exploiting the shale gas, the hydraulic fracturing technology is used for fracturing underground rock formations and releasing the shale gas in the underground rock formations, and water injected into the rock formations can be flowback at different stages of gas production of the shale gas, so that the water is called produced water. At present, the volume fracturing technology of a slickwater system and the long-section horizontal well technology are the most widely applied technologies in shale gas exploitation sites. The produced water flowback stage has complex water quality components and contains a large amount of high molecular polymers, in the produced water, pollutants such as silt and the like are carried in addition to the produced water components, the salinity mainly comprising sodium chloride is gradually increased, heavy metals and radioactive elements possibly contained in part of regional stratums are carried back to the ground along with the flowback of the produced water, and the risk of environmental pollution to soil and surface water can be caused by improper disposal, so that social problems are caused.
Disclosure of Invention
In order to solve the problems, the invention discloses a device for treating shale gas wastewater based on a disc tube type reverse osmosis membrane, which has the advantages of high pollution rejection rate, good purification effect, long membrane service life, easiness in maintenance and low investment and operation cost.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides a device based on shale gas waste water is handled to disc tube formula reverse osmosis membrane, includes circular shell, the inside of shell is equipped with top board and holding down plate, the central point of top board and holding down plate puts and is equipped with central screw rod perpendicularly, and central screw rod both ends are equipped with the nut, be equipped with the location cushion between nut and the top board, it is equipped with the clear water export to go up the location cushion side, and nut and holding down plate are equipped with down the location cushion, the upper plane of top board is equipped with the water inlet respectively, washes feed pipe and concentrate export, be equipped with the washing drain pipe on the holding down plate, be equipped with S type guiding disk and diaphragm between top board and the holding down plate, be equipped with the water pipelining between top board, holding down plate, S type guiding disk and the diaphragm, the diaphragm is double-deck diaphragm, is equipped with the infiltration cloth between the double-deck diaphragm, diaphragm one end level sets up between the clamp splice, the contact department of clamp splice and diaphragm is equipped with the spring, be equipped with the clear water course between clamp splice and central screw rod, the clear water course up extends and export intercommunication, the bump that there are evenly arranged on the surface of guiding disk, the diaphragm level sets up between the evagination.
Furthermore, control valves are arranged on the flushing water supply pipe and the flushing water drainage pipe.
Furthermore, the appearance shape of the salient points is a hemispherical surface.
Furthermore, the water flow channel is an open wide flow channel with the diameter of more than or equal to 3 mm.
Furthermore, a sealing ring is arranged between the upper pressure plate and the upper positioning cushion block.
Furthermore, a sealing ring is also arranged between the lower pressure plate and the lower positioning cushion block.
The invention discloses a use method of a device for treating shale gas wastewater based on a disc tube type reverse osmosis membrane, which comprises the following steps:
s1: purification of waste water
Shale gas wastewater enters from a water inlet, flows in an S-shaped flow guide disc through a water flowing channel, water purified by a membrane permeates into a clear water channel through a water seepage cloth and finally flows out of a clear water outlet, and residual wastewater, garbage and impurities are remained in the flow guide disc and finally flow out of a concentrated solution outlet;
s2: interior cleaning
The water is injected into the shell from the washing water supply pipe, the surface of the flow guide plate and the surface of the membrane are washed, finally the water flows out from the washing drain pipe, and the washing water supply pipe and the washing drain pipe are closed when the water is not used.
The invention has the beneficial effects that:
(1) The disc tube type reverse osmosis technology is adopted, so that the rejection rate of pollution is high, the influence of factors such as biodegradability of wastewater, carbon-nitrogen ratio and the like is avoided, and the method has great advantages on the wastewater with high organic pollutant concentration.
(2) The surface of the flow guide disc is provided with a plurality of semicircular salient points, and the special hydraulic design ensures that the treatment liquid flows through the surface of the filter membrane under the action of pressure and forms turbulent flow when colliding with the salient points, so that the permeation rate and the self-cleaning function are increased, the phenomena of membrane blockage and concentration polarization are effectively avoided, and the service life of the membrane is successfully prolonged; the scale on the membrane is easy to clean during cleaning, and the disc-tube membrane group is ensured to be suitable for severe water inlet conditions.
(3) The disc tube type reverse osmosis (DTRO) component is provided with a 3 mm open wide flow channel and a unique flow guide disc with salient points, feed liquid forms a turbulent flow state in the component, the generation of scaling, pollution and concentration polarization on the surface of a membrane is reduced to the greatest extent, and the service life of the reverse osmosis membrane is prolonged; and the membrane is easy to clean, and the flux recovery performance after cleaning is very good, so that the service life of the membrane is prolonged. The practical project shows that the service life of the DTRO is as long as more than 5 years.
(4) The DTRO membrane module adopts standardized design, and the subassembly is easy to be dismantled and is maintained, opens the DTRO subassembly and can easily inspect and maintain any diaphragm and other parts, and the maintenance is simple, and when spare part quantity was not enough, the subassembly allowed to adorn some diaphragms and guiding discs less and does not influence the use of DTRO membrane module, and this is that other forms membrane module can't reach.
(5) On the premise of reaching high-level discharge standard, compared with other processes, the disc-tube reverse osmosis technology has the advantages of shortest process flow, lowest energy consumption, low investment and operation cost and small occupied area, and in the treatment process which can also reach the new standard, the operation cost of the two-stage DTRO is far lower than that of other treatment processes.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
List of reference numerals:
1. the device comprises a shell, 2 parts of an upper pressing plate, 3 parts of a lower pressing plate, 4 parts of a central screw rod, 5 parts of a nut, 6 parts of an upper positioning cushion block, 7 parts of a clean water outlet, 8 parts of a lower positioning cushion block, 9 parts of a water inlet, 10 parts of a washing water supply pipe, 11 parts of a concentrated solution outlet, 12 parts of a washing water discharge pipe, 13 parts of a flow guide disc, 14 parts of a membrane, 15 parts of a water flow channel, 16 parts of a clamping block, 17 parts of a spring, 18 parts of a clean water channel, 19 parts of salient points, 20 parts of a control valve, 21 parts of a sealing ring.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in the figure, the device for treating shale gas wastewater based on the disc-tube reverse osmosis membrane comprises a circular shell 1, an upper pressure plate 2 and a lower pressure plate 3 are arranged inside the shell 1, a central screw rod 4 is vertically arranged at the central positions of the upper pressure plate and the lower pressure plate, nuts 5 are arranged at two ends of the central screw rod 4, an upper positioning cushion block 6 is arranged between the nuts 5 and the upper pressure plate 2, a clear water outlet 7 is arranged on the side surface of the upper positioning cushion block 6, a lower positioning cushion block 8 is arranged between the nuts 5 and the lower pressure plate 3, a water inlet 9, a flushing water supply pipe 10 and a concentrated solution outlet 11 are respectively arranged on the upper plane of the upper pressure plate, a flushing drain pipe 12 is arranged on the lower pressure plate 3, an S-shaped flow guide disc 13 and a diaphragm 14 are arranged between the upper pressure plate 2 and the lower pressure plate 3, a water flow passage 15 is arranged between the upper pressure plate 2, the lower pressure plate 3, the S-shaped flow guide disc 13 and the diaphragm 14, the diaphragm 14 is a double-layer diaphragm, a water seepage cloth is arranged between the double-layer diaphragm, one end of the diaphragm 14 is horizontally arranged between the diaphragm 16 and the diaphragm, a plurality of convex points 18 extending from the clear water outlet to the outer convex points of the clear water guide disc 13 are arranged on the horizontal arrangement of the flat surface of the diaphragm 13.
The working principle is as follows:
shale gas wastewater enters from a water inlet 9, flows in an S-shaped flow guide disc 13 through a water flowing channel 15, water purified by a membrane 14 permeates into a clear water channel 18 through a water permeable cloth, finally flows out of a clear water outlet 7, and the rest wastewater, garbage and impurities stay in the flow guide disc 13 and finally flows out of a concentrated solution outlet 11, because a plurality of convex semicircular salient points 19 are uniformly arranged on the surface of the flow guide disc 13, turbulence is formed when the water flows through the salient points under the action of pressure and collides with the salient points, and simultaneously because one end of the membrane 14 is suspended and the other end of the membrane is provided with a spring 17, the membrane can vibrate when encountering the turbulent membrane, the permeation rate and the self-cleaning function are increased, the phenomena of membrane blockage and concentration polarization are avoided, and the service life of the membrane is successfully prolonged; the scale on the membrane is easy to clean when the membrane is cleaned, and the disc-tube type membrane module is ensured to be suitable for severe water inlet conditions.
In addition, the invention also has a self-cleaning function
The water is injected into the shell from the flushing water supply pipe 10, the surface of the flow guide disc 13 and the surface of the diaphragm 14 are flushed, and finally the water flows out from the flushing water discharge pipe 12, and the control valve 20 of the flushing water supply pipe 10 and the flushing water discharge pipe 12 is closed when the water is not used.
And a sealing ring 21 is arranged between the upper pressure plate 2 and the upper positioning cushion block 6, and a sealing ring is also arranged between the lower pressure plate 3 and the lower positioning cushion block 8, so that the water tightness is ensured.
The invention adopts the disc tube type reverse osmosis (DTRO) technology to have high pollution interception rate and stable performance, is not influenced by factors such as waste water biodegradability, carbon-nitrogen ratio and the like, and has great advantages for waste water with high organic pollutant concentration.
The disc tube type reverse osmosis component is provided with a 3 mm open wide flow channel and a unique flow guide disc with salient points, feed liquid forms a turbulent flow state in the component, so that the phenomena of scaling, pollution and concentration polarization on the surface of a membrane are reduced to the greatest extent, and the service life of the reverse osmosis membrane is prolonged; and the membrane is easy to clean, and the flux recovery performance after cleaning is very good, so that the service life of the membrane is prolonged. The practical project shows that the service life of the DTRO is as long as more than 5 years, the diaphragm can be independently replaced, the cost is low, the occupied area is small, and the DTRO is worthy of popularization.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features.

Claims (6)

1. The utility model provides a device based on dish tubular reverse osmosis membrane handles shale gas waste water which characterized in that: the device comprises a circular shell, an upper pressing plate and a lower pressing plate are arranged inside the shell, a central screw is vertically arranged at the central positions of the upper pressing plate and the lower pressing plate, nuts are arranged at the two ends of the central screw, an upper positioning cushion block is arranged between the nuts and the upper pressing plate, a clear water outlet is arranged on the side surface of the upper positioning cushion block, a lower positioning cushion block is arranged on the nuts and the lower pressing plate, a water inlet, a flushing water supply pipe and a concentrated solution outlet are respectively arranged on the upper plane of the upper pressing plate, a flushing drain pipe is arranged on the lower pressing plate, an S-shaped flow guide disc and a membrane are arranged between the upper pressing plate and the lower pressing plate, be equipped with the water channel between top board, holding down plate, S type flow guide disc and the diaphragm, the diaphragm is double-deck diaphragm, is equipped with the cloth that oozes water between the double-deck diaphragm, diaphragm one end level sets up between the clamp splice, the contact department of clamp splice and diaphragm is equipped with the spring, be equipped with the clear water course between clamp splice and the central screw, the clear water course up extends and clear water export intercommunication, flow guide disc surface align to grid has the bump of a plurality of evaginations, the diaphragm level sets up between flow guide disc.
2. The device of claim 1, which is based on that a dish tubular reverse osmosis membrane is used for treating shale gas waste water, and is characterized in that: and control valves are arranged on the flushing water supply pipe and the flushing water discharge pipe.
3. The device of claim 1, which is based on that a dish tubular reverse osmosis membrane is used for treating shale gas waste water, and is characterized in that: the appearance shape of the salient points is a hemispherical surface.
4. The device of claim 1, which is based on that a dish tubular reverse osmosis membrane is used for treating shale gas waste water, and is characterized in that: the water flow channel is an open wide flow channel with the diameter of more than or equal to 3 mm.
5. The device of claim 1, which is based on that a dish tubular reverse osmosis membrane is used for treating shale gas waste water, and is characterized in that: and a sealing ring is arranged between the upper pressure plate and the upper positioning cushion block.
6. The device of claim 1, which is based on that a dish tubular reverse osmosis membrane is used for treating shale gas waste water, and is characterized in that: and a sealing ring is also arranged between the lower pressing plate and the lower positioning cushion block.
CN202121346398.6U 2021-06-17 2021-06-17 Device for treating shale gas wastewater based on disc tube type reverse osmosis membrane Active CN218174706U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121346398.6U CN218174706U (en) 2021-06-17 2021-06-17 Device for treating shale gas wastewater based on disc tube type reverse osmosis membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121346398.6U CN218174706U (en) 2021-06-17 2021-06-17 Device for treating shale gas wastewater based on disc tube type reverse osmosis membrane

Publications (1)

Publication Number Publication Date
CN218174706U true CN218174706U (en) 2022-12-30

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ID=84606219

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121346398.6U Active CN218174706U (en) 2021-06-17 2021-06-17 Device for treating shale gas wastewater based on disc tube type reverse osmosis membrane

Country Status (1)

Country Link
CN (1) CN218174706U (en)

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