CN109012191A - A kind of reverse osmosis membrane inflow temperature regulating device - Google Patents
A kind of reverse osmosis membrane inflow temperature regulating device Download PDFInfo
- Publication number
- CN109012191A CN109012191A CN201811101818.7A CN201811101818A CN109012191A CN 109012191 A CN109012191 A CN 109012191A CN 201811101818 A CN201811101818 A CN 201811101818A CN 109012191 A CN109012191 A CN 109012191A
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- CN
- China
- Prior art keywords
- water tank
- heating water
- steam
- reverse osmosis
- osmosis membrane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 32
- 239000012528 membrane Substances 0.000 title claims abstract description 24
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 94
- 239000008236 heating water Substances 0.000 claims abstract description 48
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 22
- 238000001764 infiltration Methods 0.000 claims abstract description 11
- 229910000619 316 stainless steel Inorganic materials 0.000 claims description 9
- 238000012806 monitoring device Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000002209 hydrophobic effect Effects 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 238000009833 condensation Methods 0.000 abstract description 4
- 230000005494 condensation Effects 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
- B01D61/026—Reverse osmosis; Hyperfiltration comprising multiple reverse osmosis steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/12—Controlling or regulating
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/04—Specific process operations in the feed stream; Feed pretreatment
Abstract
The invention discloses a kind of reverse osmosis membrane inflow temperature regulating devices, including ultrafiltration water tank, heating water tank and condensing hot air furnace water tank；The ultrafiltration water tank connects heating water tank；The top of the heating water tank is equipped with main steam header；The main steam header separates twice steam branch pipe, and is passed through in the heating water tank；The heating water tank is passed through counter-infiltration system；Two groups of coil pipes are equipped in the heating water tank；One end of the coil pipe connects steam branch pipe, and the other end is passed through in the condensing hot air furnace water tank；The condensing hot air furnace water tank connects steam generation facility；Steam rates valve is equipped in the main steam header；The outlet of the ultrafiltration water tank is equipped with motor-driven valve；The heating water tank is connected with online teletransmission thermometer.Ingenious in design, high degree of automation of the invention avoids being mixed into for sundries while realizing counter-infiltration system water inlet heating, while high-temperature condensation water recycling and reusing can be reduced energy consumption.
Description
Technical field
The invention belongs to technical field of water treatment equipment, are related to a kind of reverse osmosis membrane inflow temperature regulating device.
Background technique
In reverse osmosis water treatment system, inflow temperature can influence final water yield, in a certain range inflow temperature
It is every to increase by 1 DEG C, then the water permeable ability increase about 2.78% of reverse osmosis membrane.The infiltration temperature lowest limit of reverse osmosis membrane is 5 DEG C -8 DEG C, when
Temperature promotes 50% from water permeable ability when rising to 25 DEG C for 11 DEG C.But reverse osmosis membrane will appear wild effect when the temperature is excessively high,
Accelerate hydrolysis rate, therefore the optimum working temperature of reverse osmosis membrane preferably controls between 25 DEG C -30 DEG C.To ensure that counter-infiltration system is long
Time operation, habit heats feed water by reverse osmosis using steam-heated method at present, and jet chimney was both inserted into reverse osmosis
In ultrafiltration water tank before penetrating into water, using steam direct heating, to maintain to be suitble to water temperature.But such device is easy jet chimney
In the impurity bands excess of imports water filtering tank such as interior dust and iron rust, the water in ultrafiltration water tank will cause anti-when entering back into counter-infiltration system
Percolating filter and reverse osmosis membrane blocking damage.
The Chinese invention for now disclosing Patent No. 201310734399.1 discloses a kind of counter-infiltration system water inlet heating
Method, replaces surface-type raw water heater using hybrid raw water heater, and hot steam and cold water are passed through hybrid life simultaneously
In water heater, hot water is obtained.Although the invention can heat feed water by reverse osmosis, it is easy the iron rust etc. in jet chimney
Impurity is brought into water, and reverse osmosis filter and reverse osmosis membrane is caused to block damage.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of reverse osmosis membrane inflow temperature regulating device, which exists
Ultrafiltration tank outlet is additionally provided with heating water tank, heated in heating water tank using steam pipe coil reverse osmosis membrane water inlet, and by
Line teletransmission thermometer and steam rates valve regulation steam intake make water temperature keep best；The high temperature of generation is condensed again simultaneously
Water is returned in steam generation facility, to heat production steam, reduces the energy consumption of steam generation facility.Device solution through the invention
The problem of easily bringing impurity in traditional heating of having determined technique into, blocking damage reverse osmosis equipment, while also reducing steam generation dress
The energy consumption set.
The present invention is achieved by the following technical programs.
A kind of reverse osmosis membrane inflow temperature regulating device, including ultrafiltration water tank, heating water tank and condensing hot air furnace water tank；Institute
State ultrafiltration water tank connection heating water tank；The top of the heating water tank is equipped with main steam header；The main steam header separates twice steaming
Vapour branch pipe, and be passed through in the heating water tank；The heating water tank is passed through counter-infiltration system；Two are equipped in the heating water tank
Group coil pipe；One end of the coil pipe connects steam branch pipe, and the other end is passed through in the condensing hot air furnace water tank；The condensed water returns
It receives water tank and connects steam generation facility；Steam rates valve is equipped in the main steam header；The outlet of the ultrafiltration water tank is equipped with
Motor-driven valve；The heating water tank is connected with online teletransmission thermometer.
As further technological improvement, above-described coil pipe is connected with condensed water and returns from the bottom pass-out of heating water tank
Receive straight tube；The condensing hot air furnace straight tube is equipped with drain valve, and is passed through in the condensing hot air furnace water tank.
As further technological improvement, above-described in the ultrafiltration water tank, heating water tank, condensing hot air furnace water tank
And the exit and entrance of steam branch pipe is equipped with fluid monitoring device；The fluid monitoring device is pressure, thermometer and flow
Meter.
As further technological improvement, above-described main steam header is equipped with safety valve；In the inlet portion of the coil pipe
Position is equipped with check-valves；Liquidometer is equipped in the side of the heating water tank.
As further technological improvement, fillet processing is done in the bending place of above-described main steam header and steam branch pipe.
As further technological improvement, thermal insulation material is wrapped up in the outside of above-described main steam header and steam branch pipe.
As further technological improvement, above-described main steam header uses bore for the 316 stainless steel control of DN150
At.
As further technological improvement, above-described steam branch pipe uses bore for the 316 stainless steel control of DN100
At.
As further technological improvement, above-described coil pipe uses bore to be made of 316 stainless steel tubes of DN50.
As further technological improvement, all the above water pipe is all made of seamless steel pipe, and is connected with water pump.
The beneficial effects of the present invention are:
1, the present invention heats feed water by reverse osmosis by the heating water tank being arranged in outside ultrafiltration water tank, and heats use
Steam pipe coil be not to lead directly to eliminate impurity in jet chimney, iron rust etc. into water and enter and destroy the hidden danger of counter-infiltration system.
2, the present invention monitors water temperature in real time by online teletransmission thermometer, passes through steam rates valve tune further according to current water temperature
Jet chimney aperture is saved, water flow is controlled by motor-driven valve, realizes that water temperature maintains counter-infiltration system optimum working temperature, automatically
Change degree is high, and using effect is good.
3, the high-temperature condensation water formed after steam heat exchange is recycled and is passed through in steam generation facility by the present invention, to again
Heating generates steam, reduces the energy consumption of steam generation facility.
Detailed description of the invention
Fig. 1 is overall schematic of the invention；
Fig. 2 is heating water tank schematic diagram of the invention.
In figure: 1- ultrafiltration water tank, 2- heating water tank, 3- condensing hot air furnace water tank, 4- main steam header, 5- steam branch pipe, 6-
Coil pipe, 7- condensing hot air furnace straight tube, 8- steam rates valve, 9- check-valves, 10- drain valve, the online teletransmission thermometer of 11-, 12- stream
Body monitoring device, 13- water pump, 14- safety valve, 15- liquidometer, 16- motor-driven valve.
Specific embodiment
Be described further below technical solution of the present invention, but claimed range be not limited to it is described.
As shown in Figs. 1-2, a kind of reverse osmosis membrane inflow temperature regulating device, including ultrafiltration water tank 1, heating water tank 2 and cold
Condensate return water tank 3；The ultrafiltration water tank 1 connects heating water tank 2；The top of the heating water tank 2 is equipped with main steam header 4；Institute
It states main steam header 4 and separates twice steam branch pipe 5, and be passed through in the heating water tank 2；The heating water tank 2 is passed through reverse osmosis system
System；Two groups of coil pipes 6 are equipped in the heating water tank 2；One end of the coil pipe 6 connects steam branch pipe 5, and the other end is passed through described
In condensing hot air furnace water tank 3；The condensing hot air furnace water tank 3 connects steam generation facility；It is equipped with and steams in the main steam header 4
Vapour proportioning valve 8；The outlet of the ultrafiltration water tank 1 is equipped with motor-driven valve 16；The heating water tank 2 is connected with online teletransmission thermometer
11.The coil pipe 6 is connected with condensing hot air furnace straight tube 7 from the bottom pass-out of heating water tank 2；On the condensing hot air furnace straight tube 7
Equipped with drain valve 10, and it is passed through in the condensing hot air furnace water tank 3.In the ultrafiltration water tank 1, heating water tank 2, condensing hot air furnace
The exit and entrance of water tank 3 and steam branch pipe 5 is equipped with fluid monitoring device 12；The fluid monitoring device 12 be pressure gauge,
Thermometer and flowmeter.Safety valve 14 is equipped in the main steam header 4；Check-valves is equipped in the inlet location of the coil pipe 6
9；Liquidometer 15 is equipped in the side of the heating water tank 2.Fillet is done in the bending place of the main steam header 4 and steam branch pipe 5
Processing.Thermal insulation material is wrapped up in the outside of the main steam header 4 and steam branch pipe 5.The main steam header 4 use bore for
316 stainless steel tubes of DN150 are made.The steam branch pipe 5 uses bore to be made of 316 stainless steel tubes of DN100.The coil pipe
6 use bore to be made of 316 stainless steel tubes of DN50.All water pipes are all made of seamless steel pipe, and are connected with water pump 13.
Water in ultrafiltration water tank 1 enters heating water tank 2；Steam is generated from steam generation facilities such as boilers, and is passed sequentially through
Main steam header 4 and steam branch pipe 5, then be passed through in coil pipe 6；High-temperature steam carries out in coil pipe 6 with the water in heating water tank 2 at this time
Heat exchange increases water temperature；Online teletransmission thermometer 11 monitors the water temperature in heating water tank 2 in real time, once water temperature close to 30 DEG C,
It then controls steam rates valve 8 and reduces steam intake；And if water temperature is more than 30 DEG C, steam off proportioning valve 8 controls simultaneously
The inflow of the increasing heating water tank 2 of motor-driven valve 16；If water temperature is lower than 25 DEG C, the inflow of boiler 2 is reduced, is increased simultaneously
Steam intake；It is constant within the scope of 25 DEG C -30 DEG C to control water temperature；The high-temperature condensation water formed after steam heat exchange passes through
Condensing hot air furnace straight tube 7 and condensing hot air furnace water tank 3 recycle, and are passed through in steam generation facility, to reheat generation steam；
Ultrafiltration water tank 1 is configured to temporarily store the water obtained after previous step water process, and is finally passed through in counter-infiltration system；Main steam header 4 and
Fillet processing is done in the bending place of steam branch pipe 5, is to reduce steam flow resistance, it is ensured that steam supply is stablized；6 disk of coil pipe
It is threaded onto heating water tank 2, steam can be made largely to carry out heat exchange with water；Fluid monitoring device 12 monitor in real time steam and
The variation of water flowing；The effect of check-valves 9 is the condensation aqueous reflux after shutting down steam, due to thermal expansion and contraction principle, in coil pipe 6
It returns in steam branch pipe 5 and main steam header 4；Safety valve 14 can play the role of pressure release when steam pressure is excessive in pipe；Liquidometer
15 can allow operator to observe the liquid level in heating water tank 2；316 stainless steels can will not get rusty when long-time contacts steam；
Drain valve 10 can accelerate condensed water discharge.
Claims (10)
1. a kind of reverse osmosis membrane inflow temperature regulating device, it is characterised in that: including ultrafiltration water tank (1), heating water tank (2) and cold
Condensate return water tank (3)；The ultrafiltration water tank (1) connects heating water tank (2)；The top of the heating water tank (2) is equipped with steam
It is responsible for (4)；The main steam header (4) separates twice steam branch pipe (5), and is passed through in the heating water tank (2)；The heating water
Case (2) is passed through counter-infiltration system；Two groups of coil pipes (6) are equipped in the heating water tank (2)；One end of the coil pipe (6) connects
Steam branch pipe (5), the other end are passed through in the condensing hot air furnace water tank (3)；Condensing hot air furnace water tank (3) the connection steam hair
Generating apparatus；Steam rates valve (8) are equipped on the main steam header (4)；The outlet of the ultrafiltration water tank (1) is equipped with motor-driven valve
(16)；The heating water tank (2) is connected with online teletransmission thermometer (11).
2. a kind of reverse osmosis membrane inflow temperature regulating device as described in claim 1, it is characterised in that: the coil pipe (6) from
The bottom pass-out of heating water tank (2), and it is connected with condensing hot air furnace straight tube (7)；The condensing hot air furnace straight tube (7) is equipped with hydrophobic
Valve (10), and be passed through in the condensing hot air furnace water tank (3).
3. a kind of reverse osmosis membrane inflow temperature regulating device as described in claim 1, it is characterised in that: in the ultrafiltration water tank
(1), the exit and entrance of heating water tank (2), condensing hot air furnace water tank (3) and steam branch pipe (5) is equipped with fluid monitoring device
(12)；The fluid monitoring device (12) is pressure gauge, thermometer and flowmeter.
4. a kind of reverse osmosis membrane inflow temperature regulating device as described in claim 1, it is characterised in that: in the main steam header
(4) safety valve (14) are equipped with；Check-valves (9) are equipped in the inlet location of the coil pipe (6)；In the heating water tank (2)
Side is equipped with liquidometer (15).
5. a kind of reverse osmosis membrane inflow temperature regulating device as described in claim 1, it is characterised in that: the main steam header
(4) and fillet processing is done in the bending place of steam branch pipe (5).
6. a kind of reverse osmosis membrane inflow temperature regulating device as described in claim 1, it is characterised in that: the main steam header
(4) and thermal insulation material is wrapped up in the outside of steam branch pipe (5).
7. a kind of reverse osmosis membrane inflow temperature regulating device as described in claim 1, it is characterised in that: the main steam header
(4) bore is used to be made of 316 stainless steel tubes of DN150.
8. a kind of reverse osmosis membrane inflow temperature regulating device as described in claim 1, it is characterised in that: the steam branch pipe
(5) bore is used to be made of 316 stainless steel tubes of DN100.
9. a kind of reverse osmosis membrane inflow temperature regulating device as described in claim 1, it is characterised in that: the coil pipe (6) is adopted
It is made with bore of 316 stainless steel tubes of DN50.
10. a kind of reverse osmosis membrane inflow temperature regulating device as described in claim 1, it is characterised in that: all water pipes are equal
Using seamless steel pipe, and it is connected with water pump (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811101818.7A CN109012191A (en) | 2018-09-20 | 2018-09-20 | A kind of reverse osmosis membrane inflow temperature regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811101818.7A CN109012191A (en) | 2018-09-20 | 2018-09-20 | A kind of reverse osmosis membrane inflow temperature regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109012191A true CN109012191A (en) | 2018-12-18 |
Family
ID=64617521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811101818.7A Pending CN109012191A (en) | 2018-09-20 | 2018-09-20 | A kind of reverse osmosis membrane inflow temperature regulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109012191A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110215840A (en) * | 2019-07-09 | 2019-09-10 | 北京朗新明环保科技有限公司 | A kind of ultrafiltration thermal-stable operating system and method |
| CN111895801A (en) * | 2020-06-16 | 2020-11-06 | 大唐绥化热电有限公司 | Steam turbine waste heat utilization system of steam power plant |
| CN114797481A (en) * | 2022-04-28 | 2022-07-29 | 华能威海发电有限责任公司 | Double-fed temperature regulating system and method for heating reverse osmosis membrane chemical cleaning steam-water |
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| CN203586189U (en) * | 2013-11-04 | 2014-05-07 | 山东泰山钢铁集团有限公司 | Condensate water recovery device of heater |
| JP2017113675A (en) * | 2015-12-22 | 2017-06-29 | 株式会社東芝 | Forward osmosis water making system and operation method of forward osmosis water making system |
| CN206395992U (en) * | 2016-12-28 | 2017-08-11 | 重庆摩尔水处理设备有限公司 | It is a kind of to produce the stable reverse osmosis equipment of water water |
| CN206591001U (en) * | 2017-02-28 | 2017-10-27 | 鄂尔多斯市昊华国泰化工有限公司 | A kind of raw water pre-heating system |
| CN207703062U (en) * | 2017-12-11 | 2018-08-07 | 天津市力拓钢制品有限公司 | A kind of hot steam recovery system in galvanized pipe cooling process |
| CN209076428U (en) * | 2018-09-20 | 2019-07-09 | 贵州开磷集团矿肥有限责任公司 | A kind of reverse osmosis membrane inflow temperature regulating device |
-
2018
- 2018-09-20 CN CN201811101818.7A patent/CN109012191A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203586189U (en) * | 2013-11-04 | 2014-05-07 | 山东泰山钢铁集团有限公司 | Condensate water recovery device of heater |
| JP2017113675A (en) * | 2015-12-22 | 2017-06-29 | 株式会社東芝 | Forward osmosis water making system and operation method of forward osmosis water making system |
| CN206395992U (en) * | 2016-12-28 | 2017-08-11 | 重庆摩尔水处理设备有限公司 | It is a kind of to produce the stable reverse osmosis equipment of water water |
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| CN209076428U (en) * | 2018-09-20 | 2019-07-09 | 贵州开磷集团矿肥有限责任公司 | A kind of reverse osmosis membrane inflow temperature regulating device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110215840A (en) * | 2019-07-09 | 2019-09-10 | 北京朗新明环保科技有限公司 | A kind of ultrafiltration thermal-stable operating system and method |
| CN111895801A (en) * | 2020-06-16 | 2020-11-06 | 大唐绥化热电有限公司 | Steam turbine waste heat utilization system of steam power plant |
| CN114797481A (en) * | 2022-04-28 | 2022-07-29 | 华能威海发电有限责任公司 | Double-fed temperature regulating system and method for heating reverse osmosis membrane chemical cleaning steam-water |
| CN114797481B (en) * | 2022-04-28 | 2023-08-15 | 华能威海发电有限责任公司 | Double-fed temperature regulating system and method for heating reverse osmosis membrane chemical cleaning steam-water |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220615 Address after: 550000 No. 23, Jinqi Road, Jinzhong Town, Kaiyang County, Guiyang City, Guizhou Province Applicant after: GUIZHOU KAILIN GROUP Co.,Ltd. Address before: 550302 Jinzhong Town, Kaiyang County, Guiyang City, Guizhou Province (No. 2 office building) Applicant before: GUIZHOU KAILIN GROUP MINERAL FERTILIZER Co.,Ltd. |
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Application publication date: 20181218 |