CN203095756U - Full-automatic control system of ultrapure water machine - Google Patents
Full-automatic control system of ultrapure water machine Download PDFInfo
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- CN203095756U CN203095756U CN 201320069723 CN201320069723U CN203095756U CN 203095756 U CN203095756 U CN 203095756U CN 201320069723 CN201320069723 CN 201320069723 CN 201320069723 U CN201320069723 U CN 201320069723U CN 203095756 U CN203095756 U CN 203095756U
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Abstract
The utility model discloses a full-automatic control system of an ultrapure water machine, and relates to a water purifying system. The concentrated water discharged by a reverse osmosis module is circularly utilized; an ultrapure water circulation control method can effectively clean an ultrapure water circulation system through disinfection and can guarantee necessary purity of the ultrapure water circulation system; the disinfectant circularly flows in the system so that the disinfection effect is more obvious and thorough; and compared with the traditional ultrapure water circulation device, the pure circulation environment is guaranteed more sufficiently.
Description
Technical field
The utility model relates to a kind of water purification system, particularly relates to a kind of ultrapure water cyclic control system.
Background technology
Existing ultrapure water system utilizes the PP filter core to remove the impurity such as middle iron rust, silt, algae that anhydrate, and utilizes active carbon filter core absorption and filters chlorine residue in the tap water, peculiar smell, heterochromatic etc.; Bacterium in the reverse osmosis module energy elimination water, virus, inorganic salt, agricultural chemicals etc., existing ultrapure water machine behind the water that purifies certain volume, needs more renew cartridge, but existing ultrapure water machine does not have accurately careful traffic monitoring warning function; Simultaneously, in the existing Ultrapure Water Purifiers, reverse osmosis module is directly discharged waste water, can not carry out recycle to waste water, can not monitor three grades of water and ultrapure water.
In the existing ultrapure water manufacturing processed, only carry out simple ultrapure water manufacturing and take based on the ultrapure water manufacturing system, it can't monitor the safe operation of the system of assurance to system, the more important thing is, after the ultrapure water system uses for some time, can form microbial film in the pipeline, if can not routine cleaning, the quality that not only influences ultrapure water also can reduce the work-ing life of system.
The utility model content
Because the above-mentioned defective of prior art, technical problem to be solved in the utility model provides a kind of structure more rationally and have a ultrapure water cyclic control system of monitoring water quality function and discharge monitoring function.
For achieving the above object, the utility model provides a kind of ultrapure water cyclic control system, comprise the former water filter core that is connected with water inlet pipe, the water outlet of described former water filter core connects the water-in of entering water electromagnetic valve, water pipe between described former water filter core water outlet and entering water electromagnetic valve water-in is equipped with pressure transmitter, the water outlet of described entering water electromagnetic valve connects the water-in of topping-up pump by reducing valve, water pipe between described reducing valve and the topping-up pump is provided with flooding velocity meter and former water conductivity instrument, described former water conductivity instrument is built-in with first temperature sensor, the water outlet of described topping-up pump connects the water-in of first reverse osmosis module, the wastewater effluent mouth of described first reverse osmosis module connects the water-in of scouring electromagnetic valve, three grades of water water outlets of described first reverse osmosis module are connected with the water-in of second reverse osmosis module, three grades of water water outlets of described second reverse osmosis module are connected with the water-in of pure water case, also be provided with three grades of water conductivity instrument on the water pipe between described second reverse osmosis module and the pure water case, in the described pure water case liquid level sensor is installed, the water outlet of described pure water case connects first water-in of first Y-tube, the water outlet of described first Y-tube is connected with the water-in of transferpump, the water outlet of described transferpump is connected with the water-in of second Y-tube, also be provided with UV-lamp in the water pipe between the described transferpump and second Y-tube, first water outlet of described second Y-tube is connected with the water-in of the first capsule formula ultrafiltration by three grades of water water intaking magnetic valves, also be provided with three grades of water ga(u)ges between described second Y-tube and three grades of water water intaking magnetic valves, second water outlet of described second Y-tube connects the water-in of purifying module, the water outlet of described purifying module connects the water-in of depyrogenation ultrafiltration module, also be provided with the ultrapure water resistivity meter on the water pipe between described purifying module and the described depyrogenation ultrafiltration module, built-in second temperature sensor of described ultrapure water resistivity meter, the recirculated water water outlet of described depyrogenation ultrafiltration module connects second water-in of described first Y-tube by circulating electromagnetic valve, the recirculated water water outlet of described depyrogenation ultrafiltration module connects the water-in of discharge solenoid valve, the ultrapure water water outlet of described depyrogenation ultrafiltration module is connected with the water-in of the second capsule formula ultrafiltration by ultrapure water water intaking magnetic valve, also is provided with the ultrapure water under meter on the water pipe between the described ultrapure water water intaking magnetic valve and the second capsule formula ultrafiltration; The intake of the described first capsule formula ultrafiltration and the second capsule formula ultrafiltration is in communication with the outside respectively; The signal output part of described pressure transmitter connects the first input end of described central processing unit; The control end of described entering water electromagnetic valve is connected with first output terminal of described central processing unit; Second input terminus of the described central processing unit of signal output part of described flooding velocity meter; The control signal input terminus of described topping-up pump is connected with second output terminal of described central processing unit; The signal output part of described former water conductivity instrument connects the 3rd input terminus of described central processing unit; The signal output part of described first temperature sensor connects the four-input terminal of described central processing unit; The control signal input terminus of described scouring electromagnetic valve connects the 3rd output terminal of described central processing unit; The signal output part of described liquid level sensor connects the 5th input terminus of described central processing unit; The control signal input terminus of described transferpump connects the 4th output terminal of described central processing unit; The control signal input terminus of described UV-lamp connects the 5th output terminal of described central processing unit; The control signal input terminus of described three grades of water water intaking magnetic valve connects the 6th output terminal of described central processing unit; The control signal input terminus of described circulating electromagnetic valve connects the 7th output terminal of described central processing unit; The control signal input terminus of described discharge solenoid valve connects the tenth output terminal of described central processing unit, and the control signal input terminus of described ultrapure water water intaking magnetic valve connects the 8th output terminal of described central processing unit; The signal output part of described ultrapure water resistivity meter connects the 6th input terminus of described central processing unit, and the signal output part of described second temperature sensor connects the 7th input terminus of described central processing unit; The signal output part of described ultrapure water under meter connects the 8th input terminus of described central processing unit; The signal output part of described three grades of water ga(u)ges connects the 9th input terminus of described central processing unit.Owing to be provided with pressure transmitter, flooding velocity meter, former water conductivity instrument, temperature sensor, three grades of water conductivity instrument, liquid level sensor, three grades of water ga(u)ges, ultrapure water resistivity meter and ultrapure water under meters, can monitor accurately respectively three grades of water cycles part and ultrapure water cyclic part in the ultrapure water manufacturing system, the running condition of each link of understanding ultrapure water manufacturing system that can efficient real time, simultaneously owing to increased reducing valve, it is balanced more that pressure of supply water is distributed, and avoids the part pipeline to cause the system fault because of the water supply superpressure.
Further, described scouring electromagnetic valve two ends are parallel with first manual ball valve, the wastewater effluent mouth of described first reverse osmosis module connects the water-in of second manual ball valve, and the water outlet of described second manual ball valve is connected on the water pipe between described flooding velocity meter and the former water conductivity instrument; The wastewater effluent mouth of described second reverse osmosis module connects the water-in of check valve by the 3rd manual ball valve, and the water outlet of described check valve is connected on the water pipe between described flooding velocity meter and the former water conductivity instrument.In the scouring electromagnetic valve fault, can use the outside draining of meeting an urgent need of first manual ball valve, can also carry out recycle to the waste water that reverse osmosis module is discharged simultaneously,, can effectively avoid waste liquid to reflux owing to added check valve.
Further, also comprise warning howler, storer and touch-screen; The signal input part of described warning howler connects the 9th output terminal of described central processing unit, and described storer is connected with described central processing unit is two-way respectively with touch-screen; Described central processing unit also is connected with data transmission interface, and described central processing unit carries out data interaction by described data transmission interface.Owing to increased warning howler, storer and touch-screen, system can send guard signal and report to the police to warning howler, simultaneously can be by touching on-screen-display message and transmitting control signal to central processing unit by touch-screen, central processing unit can carry out data interaction by data transmission interface and upper computer or storage media, and its interaction data is convenient.
The beneficial effects of the utility model are: the utility model can be monitored respectively accurately to three grades of water cycles part and ultrapure water cyclic part in the ultrapure water manufacturing system, the running condition of each link of understanding ultrapure water manufacturing system that can efficient real time, owing to increased reducing valve, it is balanced more that pressure of supply water is distributed, avoid the part pipeline to cause the system fault because of the water supply superpressure, the utility model can carry out recycle to the waste water that reverse osmosis module is discharged, and can effectively avoid waste liquid to reflux; Simultaneously can effectively clean the ultrapure water recycle system, can guarantee the purity of ultrapure water recycle system necessity, the step of allocating thimerosal simultaneously can satisfy the requirement of the equipment of different standards, has increased the range of application of present method; Because take the circulation sterilization, thimerosal circulates in system, makes sterilisation effect more obvious; Some parts in system are because the special intake as three grades of water and ultrapure water of structure; there are some dead angles to be difficult to carry out disinfection easily; and traditional sterilizing process only can be to the circulation line sterilization of system; therefore each intake usually the halfway situation of sterilizing can occur; therefore carrying out intake disinfectant step can make that the sterilization of total system is more thorough; guaranteed the pure of system more fully, the utility model has guaranteed the steady running of system by multiple self check simultaneously.
Description of drawings
Fig. 1 is the structural representation of ultrapure water cyclic control system.
Fig. 2 is the schematic circuit diagram of ultrapure water cyclic control system.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As Fig. 1, shown in Figure 2, a kind of ultrapure water cyclic control system, comprise the former water filter core 1 that is connected with water inlet pipe, central processing unit 31, warning howler 36, storer 37 and touch-screen 38, the water outlet of described former water filter core 1 connects the water-in of entering water electromagnetic valve 2, water pipe between described former water filter core 1 water outlet and entering water electromagnetic valve 2 water-ins is equipped with pressure transmitter 3, the water outlet of described entering water electromagnetic valve 2 connects the water-in of topping-up pump 5 by reducing valve 4, water pipe between described reducing valve 4 and the topping-up pump 5 is provided with flooding velocity meter 6 and former water conductivity instrument 7, described former water conductivity instrument 7 is built-in with first temperature sensor 8, the water outlet of described topping-up pump 5 connects the water-in of first reverse osmosis module 9, the wastewater effluent mouth of described first reverse osmosis module 9 connects the water-in of scouring electromagnetic valve 10, three grades of water water outlets of described first reverse osmosis module 9 are connected with the water-in of second reverse osmosis module 11, three grades of water water outlets of described second reverse osmosis module 11 are connected with the water-in of pure water case 12, also be provided with three grades of water conductivity instrument 14 on the water pipe between described second reverse osmosis module 11 and the pure water case 12, in the described pure water case 12 liquid level sensor 13 is installed, the water outlet of described pure water case 12 connects first water-in of first Y-tube 15, the water outlet of described first Y-tube 15 is connected with the water-in of transferpump 16, the water outlet of described transferpump 16 is connected with the water-in of second Y-tube 17, also be provided with UV-lamp 18 in the water pipe between the described transferpump 16 and second Y-tube 17, first water outlet of described second Y-tube 17 is connected with the water-in of the first capsule formula ultrafiltration 20 by three grades of water water intaking magnetic valves 19, also be provided with three grades of water ga(u)ges 21 between described second Y-tube 17 and three grades of water water intaking magnetic valves 19, second water outlet of described second Y-tube 17 connects the water-in of purifying module 22, the water outlet of described purifying module 22 connects the water-in of depyrogenation ultrafiltration module 23, also be provided with ultrapure water resistivity meter 24 on the water pipe between described purifying module 22 and the described depyrogenation ultrafiltration module 23, described ultrapure water resistivity meter 24 built-in second temperature sensors 25, the recirculated water water outlet of described depyrogenation ultrafiltration module 23 connects second water-in of described first Y-tube 15 by circulating electromagnetic valve 26, the recirculated water water outlet of described depyrogenation ultrafiltration module 23 connects the water-in of discharge solenoid valve 27, the ultrapure water water outlet of described depyrogenation ultrafiltration module 23 is connected with the water-in of the second capsule formula ultrafiltration 29 by ultrapure water water intaking magnetic valve 28, also is provided with ultrapure water under meter 30 on the water pipe between the described ultrapure water water intaking magnetic valve 28 and the second capsule formula ultrafiltration 29; The intake of the described first capsule formula ultrafiltration 20 and the second capsule formula ultrafiltration 29 all is in communication with the outside.
The signal output part of described pressure transmitter 3 connects the first input end of described central processing unit 31; The control end of described entering water electromagnetic valve 2 is connected with first output terminal of described central processing unit 31; Second input terminus of the described central processing unit 31 of the signal output part of described flooding velocity meter 6; The control signal input terminus of described topping-up pump 5 is connected with second output terminal of described central processing unit 31; The signal output part of described former water conductivity instrument 7 connects the 3rd input terminus of described central processing unit 31; The signal output part of described first temperature sensor 8 connects the four-input terminal of described central processing unit 31; The control signal input terminus of described scouring electromagnetic valve 10 connects the 3rd output terminal of described central processing unit 31; The signal output part of described liquid level sensor 13 connects the 5th input terminus of described central processing unit 31; The control signal input terminus of described transferpump 16 connects the 4th output terminal of described central processing unit 31; The control signal input terminus of described UV-lamp 18 connects the 5th output terminal of described central processing unit 31; The control signal input terminus of described three grades of water water intaking magnetic valve 19 connects the 6th output terminal of described central processing unit 31; The control signal input terminus of described circulating electromagnetic valve 26 connects the 7th output terminal of described central processing unit 31; The control signal input terminus of described discharge solenoid valve 27 connects the tenth output terminal of described central processing unit 31, and the control signal input terminus of described ultrapure water water intaking magnetic valve 28 connects the 8th output terminal of described central processing unit 31; The signal output part of described ultrapure water resistivity meter 24 connects the 6th input terminus of described central processing unit 31, and the signal output part of described second temperature sensor 25 connects the 7th input terminus of described central processing unit 31; The signal output part of described ultrapure water under meter 30 connects the 8th input terminus of described central processing unit 31; The signal output part of described three grades of water ga(u)ges 21 connects the 9th input terminus of described central processing unit 31.
Described scouring electromagnetic valve 10 two ends are parallel with first manual ball valve 32, the wastewater effluent mouth of described first reverse osmosis module 9 connects the water-in of second manual ball valve 33, and the water outlet of described second manual ball valve 33 is connected on the water pipe between described flooding velocity meter 6 and the former water conductivity instrument 7; The wastewater effluent mouth of described second reverse osmosis module 11 connects the water-in of check valves 35 by the 3rd manual ball valve 34, and the water outlet of described check valve 35 is connected on the water pipe between described flooding velocity meter 6 and the former water conductivity instrument 7.
The signal input part of described warning howler 36 connects the 9th output terminal of described central processing unit 31, described storer 37 and touch-screen 38 respectively with described 31 two-way connections of central processing unit; Described central processing unit 31 also is connected with data transmission interface 39, and described central processing unit 31 carries out data interaction by described data transmission interface 39.
In the present embodiment; the recirculated water water outlet of described depyrogenation ultrafiltration module 23 can also circulate by three-way solenoid valve; the recirculated water water outlet of described depyrogenation ultrafiltration module 23 connects the water-in of three-way solenoid valve; the waste outlet of three-way solenoid valve is in communication with the outside; the waste water circulation port of this three-way solenoid valve connects second water-in of described first Y-tube 15; adopt the same function that can realize of three-way solenoid valve, so it should be in the described protection domain of claim by the realization of circulating electromagnetic valve and discharge solenoid valve pipeline.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can make many modifications and variations according to design of the present utility model.Therefore, all technician in the art comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.
Claims (3)
1. ultrapure water machine full-automatic control system, comprise the former water filter core (1) that is connected with water inlet pipe, the water outlet of described former water filter core (1) connects the water-in of entering water electromagnetic valve (2), water pipe between described former water filter core (1) water outlet and entering water electromagnetic valve (2) water-in is equipped with pressure transmitter (3), it is characterized in that: the water outlet of described entering water electromagnetic valve (2) connects the water-in of topping-up pump (5) by reducing valve (4), water pipe between described reducing valve (4) and the topping-up pump (5) is provided with flooding velocity meter (6) and former water conductivity instrument (7), described former water conductivity instrument (7) is built-in with first temperature sensor (8), the water outlet of described topping-up pump (5) connects the water-in of first reverse osmosis module (9), the wastewater effluent mouth of described first reverse osmosis module (9) connects the water-in of scouring electromagnetic valve (10), three grades of water water outlets of described first reverse osmosis module (9) are connected with the water-in of second reverse osmosis module (11), three grades of water water outlets of described second reverse osmosis module (11) are connected with the water-in of pure water case (12), also be provided with three grades of water conductivity instrument (14) on the water pipe between described second reverse osmosis module (11) and the pure water case (12), liquid level sensor (13) is installed in the described pure water case (12), the water outlet of described pure water case (12) connects first water-in of first Y-tube (15), the water outlet of described first Y-tube (15) is connected with the water-in of transferpump (16), the water outlet of described transferpump (16) is connected with the water-in of second Y-tube (17), also be provided with UV-lamp (18) in the water pipe between described transferpump (16) and second Y-tube (17), first water outlet of described second Y-tube (17) is connected with the water-in of the first capsule formula ultrafiltration (20) by three grades of water water intaking magnetic valves (19), also be provided with three grades of water ga(u)ges (21) between described second Y-tube (17) and the three grades of water water intaking magnetic valves (19), second water outlet of described second Y-tube (17) connects the water-in of purifying module (22), the water outlet of described purifying module (22) connects the water-in of depyrogenation ultrafiltration module (23), also be provided with ultrapure water resistivity meter (24) on the water pipe between described purifying module (22) and the described depyrogenation ultrafiltration module (23), built-in second temperature sensor of described ultrapure water resistivity meter (24) (25), the recirculated water water outlet of described depyrogenation ultrafiltration module (23) connects second water-in of described first Y-tube (15) by circulating electromagnetic valve (26), the recirculated water water outlet of described depyrogenation ultrafiltration module (23) connects the water-in of discharge solenoid valve (27), the ultrapure water water outlet of described depyrogenation ultrafiltration module (23) is connected with the water-in of the second capsule formula ultrafiltration (29) by the ultrapure water magnetic valve (28) of fetching water, and also is provided with ultrapure water under meter (30) on the water pipe between the described ultrapure water water intaking magnetic valve (28) and the second capsule formula ultrafiltration (29);
The signal output part of described pressure transmitter (3) connects the first input end of described central processing unit (31); The control end of described entering water electromagnetic valve (2) is connected with first output terminal of described central processing unit (31); Second input terminus of the described central processing unit of signal output part (31) of described flooding velocity meter (6); The control signal input terminus of described topping-up pump (5) is connected with second output terminal of described central processing unit (31); The signal output part of described former water conductivity instrument (7) connects the 3rd input terminus of described central processing unit (31); The signal output part of described first temperature sensor (8) connects the four-input terminal of described central processing unit (31); The control signal input terminus of described scouring electromagnetic valve (10) connects the 3rd output terminal of described central processing unit (31); The signal output part of described liquid level sensor (13) connects the 5th input terminus of described central processing unit (31); The control signal input terminus of described transferpump (16) connects the 4th output terminal of described central processing unit (31); The control signal input terminus of described UV-lamp (18) connects the 5th output terminal of described central processing unit (31); The control signal input terminus of described three grades of water water intaking magnetic valves (19) connects the 6th output terminal of described central processing unit (31); The control signal input terminus of described circulating electromagnetic valve (26) connects the 7th output terminal of described central processing unit (31); The control signal input terminus of described discharge solenoid valve (27) connects the tenth output terminal of described central processing unit (31), and the control signal input terminus of described ultrapure water water intaking magnetic valve (28) connects the 8th output terminal of described central processing unit (31); The signal output part of described ultrapure water resistivity meter (24) connects the 6th input terminus of described central processing unit (31), and the signal output part of described second temperature sensor (25) connects the 7th input terminus of described central processing unit (31); The signal output part of described ultrapure water under meter (30) connects the 8th input terminus of described central processing unit (31); The signal output part of described three grades of water ga(u)ges (21) connects the 9th input terminus of described central processing unit (31).
2. ultrapure water machine full-automatic control system as claimed in claim 1, it is characterized in that: described scouring electromagnetic valve (10) two ends are parallel with first manual ball valve (32), the wastewater effluent mouth of described first reverse osmosis module (9) connects the water-in of second manual ball valve (33), and the water outlet of described second manual ball valve (33) is connected on the water pipe between described flooding velocity meter (6) and the former water conductivity instrument (7); The wastewater effluent mouth of described second reverse osmosis module (11) connects the water-in of check valve (35) by the 3rd manual ball valve (34), and the water outlet of described check valve (35) is connected on the water pipe between described flooding velocity meter (6) and the former water conductivity instrument (7).
3. ultrapure water machine full-automatic control system as claimed in claim 1 or 2 is characterized in that: also comprise warning howler (36), storer (37) and touch-screen (38); The signal input part of described warning howler (36) connects the 9th output terminal of described central processing unit (31), described storer (37) and touch-screen (38) respectively with two-way connection of described central processing unit (31); Described central processing unit (31) also is connected with data transmission interface (39), and described central processing unit (31) carries out data interaction by described data transmission interface (39).
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320069723 CN203095756U (en) | 2013-02-06 | 2013-02-06 | Full-automatic control system of ultrapure water machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320069723 CN203095756U (en) | 2013-02-06 | 2013-02-06 | Full-automatic control system of ultrapure water machine |
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| CN203095756U true CN203095756U (en) | 2013-07-31 |
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| CN 201320069723 Expired - Lifetime CN203095756U (en) | 2013-02-06 | 2013-02-06 | Full-automatic control system of ultrapure water machine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103116345A (en) * | 2013-02-06 | 2013-05-22 | 林莹陈 | Full-automatic control system and control method of ultra pure water machine |
| CN104108729A (en) * | 2014-08-01 | 2014-10-22 | 张家港化工机械股份有限公司 | Circulating device of pure water in concentrated production of caustic soda and caustic soda flakes |
| CN104360694A (en) * | 2014-11-07 | 2015-02-18 | 重庆颐洋企业发展有限公司 | Liquid level control and leakage prevention device for ultrapure-water machine water storage tank |
| CN104925898A (en) * | 2014-03-21 | 2015-09-23 | 西安天衡计量仪表有限公司 | Domestic drinking water purification device |
| CN112013452A (en) * | 2020-08-06 | 2020-12-01 | 双鹤药业(沈阳)有限责任公司 | Water distribution system |
-
2013
- 2013-02-06 CN CN 201320069723 patent/CN203095756U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103116345A (en) * | 2013-02-06 | 2013-05-22 | 林莹陈 | Full-automatic control system and control method of ultra pure water machine |
| CN103116345B (en) * | 2013-02-06 | 2015-01-07 | 重庆颐洋企业发展有限公司 | Full-automatic control system and control method of ultra pure water machine |
| CN104925898A (en) * | 2014-03-21 | 2015-09-23 | 西安天衡计量仪表有限公司 | Domestic drinking water purification device |
| CN104108729A (en) * | 2014-08-01 | 2014-10-22 | 张家港化工机械股份有限公司 | Circulating device of pure water in concentrated production of caustic soda and caustic soda flakes |
| CN104108729B (en) * | 2014-08-01 | 2015-09-16 | 苏州天沃科技股份有限公司 | Caustic soda, sheet alkali concentrate the circulation device of pure water in production |
| CN104360694A (en) * | 2014-11-07 | 2015-02-18 | 重庆颐洋企业发展有限公司 | Liquid level control and leakage prevention device for ultrapure-water machine water storage tank |
| CN112013452A (en) * | 2020-08-06 | 2020-12-01 | 双鹤药业(沈阳)有限责任公司 | Water distribution system |
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Granted publication date: 20130731 Effective date of abandoning: 20150107 |
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