CN104211224B - A set of sea water desaltination resource utilization modifying device - Google Patents
A set of sea water desaltination resource utilization modifying device Download PDFInfo
- Publication number
- CN104211224B CN104211224B CN201410449695.1A CN201410449695A CN104211224B CN 104211224 B CN104211224 B CN 104211224B CN 201410449695 A CN201410449695 A CN 201410449695A CN 104211224 B CN104211224 B CN 104211224B
- Authority
- CN
- China
- Prior art keywords
- water
- online
- lime
- milk
- sea water
- 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.)
- Active
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention provides a set of sea water desaltination resource utilization modifying device, sea water desaltination carrys out the water-in that waterpipe is connected to carbon dioxide absorption tower, and the water outlet of carbon dioxide absorption tower is connected to the water-in of sea water desaltination water tank; The water-in that main pipeline one end is connected to the water outlet of sea water desaltination water tank, one end is connected to milk of lime line mixer; And main pipeline be provided with sea water desaltination water pump and show to count with the first online pH of the chain setting of carbon dioxide variable valve; The outlet conduit of milk of lime line mixer is connected to modified water tank, connecting tube is provided with the second online pH adding the chain setting of volume pump with milk of lime and shows to count.Whole system equipment is controlled by PLC or DCS, by accurately adding, supplementing a certain amount of mineralized material of sea water desaltination water, safeguarding that resident is healthy, protect water supply network safe operation simultaneously.
Description
Technical field
The present invention is applied to sea water desaltination tap water field, is specifically related to a set of sea water desaltination resource utilization modifying device.
Background technology
At present, shortage of water resources has become one of important factor of restriction Chinese society sustainable economic development.There is more than 400 insufficient water in the whole nation in 669 cities, and wherein serious water shortage has 110.Shortage of water resources problem shows particularly serious in the flourishing city of some coastal economies.Meanwhile, China's many coastal cities water resources structure is single, is overly dependent upon surface water, and the micro-pollutionization in surface water water source and the generation of sudden pollution accident in recent years, cause resident to the worry supplied water.
The water intaking of sea water desaltination is not by time and climatic influences, and water conditioning and the water yield is sufficient, the desalination water water quality of production can reach water quality standard for drinking water completely, and is better than the tap water of traditional water source and water-purifying process production.Nearly decades, along with the progress of science and technology, desalination technology develop rapidly, production technique reaches its maturity, and water producing cost constantly declines.Solve water resources crisis by development desalination technology, obtain the generally approval of countries in the world.China shoreline reaches 32647 kilometers, and seawater resources enrich.Therefore, development desalination technology, is used for coastal cities municipal water supply, not only effectively can solves China's shortage of fresh water problem by sea water desaltination, and can improve the domestic water water quality of coastal cities and islander and ensure urbanite water consumption safety.
Sea water desaltination water, before entering water supply network, needs supplementary a certain amount of mineral substance, and its object mainly safeguards that resident is healthy makes it meet the requirement of pipe network transmission & distribution with stabilizing water quality.In water the impact of various element ion on HUMAN HEALTH be one for a long time, process slowly.Epidemiological study shows, cardiovascular death rate becomes negative correlativing relation with tap water hardness, and the calcium in water, magnesium ion have certain protection effect to cardiovascular system of human body.
Hydrochemistry stability is mainly manifested in corrodibility and fouling tendency two aspect.When calcium carbonate content in water exceedes its saturation value, can cause precipitation of calcium carbonate fouling, slight fouling can form certain protective membrane at pipeline inner wall, and metallic surface is not directly contacted with the dissolved oxygen in water, thus suppresses galvanic corrosion.On the contrary, when calcium carbonate content in water is lower than saturation value, the calcium carbonate precipitated can be dissolved in water again, accelerates corrosion of piping.The corrosion of pipeline may cause " red water " problem, and increases the risk of the heavy metal element precipitations such as plumbous and cadmium, affects water supply quality, and harm drinking person is healthy.
Summary of the invention
The object of the invention is: a set of adaptable, sea water desaltination resource utilization modifying device that simple and reliable process, treatment effect are good is provided; sea water desaltination water is before entering water supply network; a certain amount of mineralized material is supplemented by this sea water desaltination resource utilization modifying device; to safeguard that resident is healthy; slight fouling simultaneously forms certain protective membrane at pipeline inner wall; metallic surface is not directly contacted with the dissolved oxygen in water, thus suppresses galvanic corrosion, protection water supply network safety.
Technical scheme of the present invention is: a set of sea water desaltination resource utilization modifying device, comprises sea water desaltination water tank, sea water desaltination water pump, dioxide bottle, carbon dioxide absorption tower, lime storage system, device for preparing lime milk, milk of lime throwing device, main pipeline, modified water tank; Described milk of lime throwing device comprises and adds volume pump, milk of lime line mixer with the milk of lime matched of exerting oneself of sea water desaltination water pump;
Sea water desaltination carrys out the water-in that waterpipe is connected to carbon dioxide absorption tower, the water outlet of carbon dioxide absorption tower is connected to the water-in of sea water desaltination water tank, and the carbon dioxide vent of carbon dioxide absorption tower is connected to dioxide bottle by carbon dioxide variable valve pipeline;
The water-in that described main pipeline one end is connected to the water outlet of sea water desaltination water tank, one end is connected to milk of lime line mixer; And main pipeline is provided with sea water desaltination water pump;
The outlet conduit of described milk of lime line mixer is connected to modified water tank.
Further, described lime storage system comprises lime silo, sack cleaner, screw feeder, worm conveyor, is provided with vibrations hopper in described lime silo.
Further, described device for preparing lime milk comprises lime-milk stirrer, dissolves case, bin, described dissolving case and the integrated device of bin.
Further, described milk of lime throwing device comprises the outlet y-type filter of lime milk intlet line strainer and milk of lime line mixer.Good filtration effect, ensures the influent quality of modulation water tank.
Further, described main pipeline is provided with first of the chain setting of carbon dioxide variable valve that online pH shows to count; Concrete control method is as follows: when the high Con trolling index of the first online pH table meter monitoring numerical value higher than the first online pH table meter, increase the adjustment doors of carbon dioxide variable valve, controls in normal range that the online pH table of water outlet pH value to the first counts; When the minimum Con trolling index that the first online pH table meter monitoring numerical value is counted lower than the first online pH table, turn down the adjustment doors of carbon dioxide variable valve, control in the normal range of water outlet pH value to the first online pH table meter.
Further, the outlet conduit of described milk of lime line mixer is provided with the second online pH adding the chain setting of volume pump with milk of lime to show to count, concrete control method is as follows: milk of lime adds volume pump variable frequency control, when the highest Con trolling index that the second online pH table meter monitoring numerical value is counted higher than the second online pH table, reduce milk of lime and add volume pump running frequency, control in the normal range of water outlet pH value to the second online pH table meter; When the second online pH table meter monitoring numerical value shows the minimum Con trolling index of meter lower than the second online pH, increase milk of lime and add volume pump running frequency, control the online pH of water outlet pH value to the second and show in the normal range of meter.
Further, comprise water circulating pump, described water circulating pump one end is connected to the water outlet of sea water desaltination water tank, one end is connected to sea water desaltination and carrys out waterpipe; The control method of described water circulating pump is as follows: when carbon dioxide variable valve and the first online pH show to count chain operation water outlet pH value cannot reach in the normal range that the first online pH shows to count time, start water circulating pump, the water outlet of sea water desaltination water tank is turned back to carbon dioxide absorption tower and reuptakes carbonic acid gas, until the water outlet of sea water desaltination water tank reaches in the normal range of the first online pH table meter.
The invention has the beneficial effects as follows: sea water desaltination water is before entering water supply network, a certain amount of mineralized material is supplemented by this sea water desaltination resource utilization modifying device, to safeguard that resident is healthy, simultaneously by controlling the bright Greer saturation index (LSI) of water outlet, guarantee bright Greer saturation index (LSI) value be micro-on the occasion of, make product glassware for drinking water have micro-fouling tendency.Slight fouling can form certain protective membrane at pipeline inner wall, and metallic surface is not directly contacted with the dissolved oxygen in water, thus suppresses galvanic corrosion, the safe operation of protection water supply network.This sea water desaltination resource utilization modifying device also has following characteristics simultaneously: (1) device strong adaptability, and the sea water desaltination resource utilization that can be applicable to the various water yield is modified.(2) plant automation degree is high, safeguards simple.(3) the modified stable water outlet of device, reliable.(4) system device is controlled by PLC or DCS, can realize more accurate process control, reduces running cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure: sea water desaltination water tank 1, sea water desaltination water pump 2, dioxide bottle 3, carbon dioxide absorption tower 4, lime storage system 5, device for preparing lime milk 6, milk of lime throwing device 7, milk of lime line mixer 8, main pipeline 9, modified water tank 10, carbon dioxide variable valve 11, milk of lime adds the online pH of volume pump 12, first and shows meter 13, second online pH table meter 14, water circulating pump 15, y-type filter 16.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As shown in Figure 1, a set of sea water desaltination resource utilization modifying device, comprises sea water desaltination water tank 1, sea water desaltination water pump 2, water circulating pump 15, dioxide bottle 3, carbon dioxide absorption tower 4, lime storage system 5, device for preparing lime milk 6, milk of lime throwing device 7, main pipeline 9, modified water tank 10.Milk of lime throwing device 7 comprises milk of lime and adds volume pump 12, milk of lime line mixer 8.
Sea water desaltination carrys out the water-in that waterpipe is connected to carbon dioxide absorption tower 4, the water outlet of carbon dioxide absorption tower 4 is connected to the water-in of sea water desaltination water tank 1, and the carbon dioxide vent of carbon dioxide absorption tower 4 is connected to dioxide bottle 3 by carbon dioxide variable valve 11 pipeline.The water-in that main pipeline 9 one end is connected to the water outlet of sea water desaltination water tank 1, one end is connected to milk of lime line mixer 8.Main pipeline 9 is provided with sea water desaltination water pump 2.
Lime storage system comprises lime silo, sack cleaner, vibrations hopper, screw feeder, the worm conveyor be arranged in lime silo, and the vibrating effect of vibrations hopper makes silo sodalime powder not lump for a long time.During the discharging of lime silo, lime powder drops to screw feeder, and screw feeder is by the chemical feeding quantity of water yield frequency conversion accurate measurement lime powder, and powdered lime enters device for preparing lime milk by spiral powder conveying machine.Lime storage metering system except normal make an inspection tour and the medicament of lime silo supplementary except, realize unattended duty.
Device for preparing lime milk comprises lime-milk stirrer, dissolves case, bin, dissolves case and the integrated device of bin.
Device for preparing lime milk working process adopts time variable control completely, realizes automatically running, and reaches the working order of unattended duty.
Device for preparing lime milk lime used is that massfraction is greater than 98% and meets the product of Hygienic Administrative License, to reduce other foreign matter contents brought in milk of lime, prevents sea water desaltination water water quality not up to standard.
Milk of lime throwing device comprises lime milk intlet line strainer, milk of lime adds volume pump 12, the outlet y-type filter 16 of milk of lime line mixer 8, milk of lime line mixer and on-site control.
During work, sea water desaltination water enters carbon dioxide absorption tower by Cemented filling, filler is filled in carbon dioxide absorption tower, sea water desaltination water flows through carbon dioxide absorption tower from top to bottom, after absorbing appropriate carbon dioxide, gravity flow enters sea water desaltination water tank, and carbon dioxide is by entering carbon dioxide absorption tower after the decompression of gas cylinder reducing valve.The water outlet of sea water desaltination water tank is delivered to milk of lime line mixer by sea water desaltination water pump pipeline, simultaneously, lime in lime storage system adds in milk of lime line mixer by milk of lime throwing device after device for preparing lime milk preparation, after the mixing of milk of lime line mixer, be delivered to modulation water tank.
As preferred scheme, the present invention is provided with the online pH with first of the chain setting of carbon dioxide variable valve 11 and shows meter 13 on main pipeline 9, concrete control method is as follows: when the highest Con trolling index that the first online pH table meter monitoring numerical value is counted higher than the first online pH table, increase the adjustment doors of carbon dioxide variable valve, control in the normal range of water outlet pH value to the first online pH table meter; When the minimum Con trolling index that the first online pH table meter monitoring numerical value is counted lower than the first online pH table, turn down the adjustment doors of carbon dioxide variable valve, control in the normal range of water outlet pH value to the first online pH table meter.Wherein, the minimum Con trolling index of the highest Con trolling index of the first online pH table meter, the normal range of the first online pH table meter, the first online pH table meter, can determine according to the specific requirement of designer.In the present embodiment, the highest Con trolling index arranging the first online pH table meter is the normal range of the 5, the first online pH table meter is 4.4-4.6, and the minimum Con trolling index that the first online pH shows to count is 4.By the accurate control of the first online pH table meter, guarantee stable effluent quality, reduce running cost.
The outlet conduit of milk of lime line mixer 8 is provided with the second online pH adding the chain setting of volume pump 12 with milk of lime and shows meter 14, concrete control method is as follows: milk of lime adds volume pump variable frequency control, when the highest Con trolling index that the second online pH table meter monitoring numerical value is counted higher than the second online pH table, reduce milk of lime and add volume pump running frequency, control in the normal range of water outlet pH value to the second online pH table meter; When the second online pH table meter monitoring numerical value shows the minimum Con trolling index of meter lower than the second online pH, increase milk of lime and add volume pump running frequency, control the online pH of water outlet pH value to the second and show in the normal range of meter.Wherein, the minimum Con trolling index of the highest Con trolling index of the second online pH table meter, the normal range of the second online pH table meter, the second online pH table meter, can determine according to the specific requirement of designer.In the present embodiment, the highest Con trolling index arranging the second online pH table meter is the normal range of the 8, the second online pH table meter is 7.4-7.6, and the minimum Con trolling index that the second online pH shows to count is 7.By the accurate control of the second online pH table meter, guarantee stable effluent quality, reduce running cost.
Meanwhile, water circulating pump 15 one end is connected to the water outlet of sea water desaltination water tank, one end is connected to sea water desaltination and carrys out waterpipe; The control method of described water circulating pump 15 is as follows: when carbon dioxide variable valve 11 and the first online pH show to count chain operation water outlet pH value cannot reach in the normal range that the first online pH shows to count time, start water circulating pump, the water outlet of sea water desaltination water tank is turned back to carbon dioxide absorption tower and reuptakes carbonic acid gas, until the water outlet of sea water desaltination water tank reaches in the normal range of the first online pH table meter.
During apparatus of the present invention, milk of lime adds exerting oneself of volume pump 12 and to match with exerting oneself of sea water desaltination water pump 2.As when the exerting oneself as 100t/h of sea water desaltination water pump 2, milk of lime adds volume pump and selects exerting oneself of 130L/h.
Although the present invention with preferred embodiment disclose as above, so itself and be not used to limit the present invention.Persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is when being as the criterion depending on those as defined in claim.
Claims (7)
1. a set of sea water desaltination resource utilization modifying device, is characterized in that: comprise sea water desaltination water tank (1), sea water desaltination water pump (2), dioxide bottle (3), carbon dioxide absorption tower (4), lime storage system (5), device for preparing lime milk (6), milk of lime throwing device (7), main pipeline (9), modified water tank (10); Described milk of lime throwing device (7) comprises and adds volume pump (12), milk of lime line mixer (8) with the milk of lime matched of exerting oneself of sea water desaltination water pump (2);
Sea water desaltination carrys out the water-in that waterpipe is connected to carbon dioxide absorption tower (4), the water outlet of carbon dioxide absorption tower (4) is connected to the water-in of sea water desaltination water tank (1), and the carbon dioxide vent of carbon dioxide absorption tower (4) is connected to dioxide bottle (3) by carbon dioxide variable valve (11) pipeline;
The water-in that described main pipeline (9) one end is connected to the water outlet of sea water desaltination water tank (1), one end is connected to milk of lime line mixer (8); And main pipeline (9) is provided with sea water desaltination water pump (2);
The outlet conduit of described milk of lime line mixer (8) is connected to modified water tank (10).
2. a set of sea water desaltination resource utilization modifying device according to claim 1, it is characterized in that: described lime storage system (5) comprises lime silo, sack cleaner, screw feeder, worm conveyor, is provided with vibrations hopper in described lime silo.
3. a set of sea water desaltination resource utilization modifying device according to claim 1, is characterized in that: described device for preparing lime milk (6) comprises lime-milk stirrer, dissolves case, bin, described dissolving case and the integrated device of bin.
4. a set of sea water desaltination resource utilization modifying device according to claim 1, is characterized in that: described milk of lime throwing device (7) comprises the outlet y-type filter (16) of lime milk intlet line strainer and milk of lime line mixer (8).
5. a set of sea water desaltination resource utilization modifying device according to claim 1, is characterized in that: described main pipeline (9) is provided with the online pH with first of carbon dioxide variable valve (11) chain setting and shows to count (13); Concrete control method is as follows: when the highest Con trolling index that the first online pH table meter (13) monitoring numerical value is counted higher than the first online pH table, increase the adjustment doors of carbon dioxide variable valve (11), control in the normal range of water outlet pH value to the first online pH table meter; When the minimum Con trolling index that the first online pH table meter (13) monitoring numerical value is counted lower than the first online pH table, turn down the adjustment doors of carbon dioxide variable valve (11), control in the normal range of water outlet pH value to the first online pH table meter; The highest Con trolling index of the first online pH table meter is the normal range that the 5, the first online pH table is counted is 4.4-4.6, and the minimum Con trolling index of the first online pH table meter is 4.
6. a set of sea water desaltination resource utilization modifying device according to claim 1, it is characterized in that: the outlet conduit of described milk of lime line mixer (8) is provided with the second online pH adding volume pump (12) chain setting with milk of lime and shows to count (14), concrete control method is as follows: milk of lime adds volume pump (12) variable frequency control, when the highest Con trolling index that the second online pH table meter (14) monitoring numerical value is counted higher than the second online pH table, reduce milk of lime and add volume pump (12) running frequency, control in the normal range of water outlet pH value to the second online pH table meter, when the second online pH table meter (14) monitoring numerical value shows the minimum Con trolling index of meter lower than the second online pH, increase milk of lime and add volume pump (12) running frequency, control the online pH of water outlet pH value to the second and show in the normal range of meter, the highest Con trolling index of the second online pH table meter is the normal range that the 8, the second online pH table is counted is 7.4-7.6, and the minimum Con trolling index of the second online pH table meter is 7.
7. a set of sea water desaltination resource utilization modifying device according to claim 1, it is characterized in that: comprise water circulating pump (15), described water circulating pump (15) one end is connected to the water outlet of sea water desaltination water tank (1), one end is connected to sea water desaltination and carrys out waterpipe; The control method of described water circulating pump (15) is as follows: when carbon dioxide variable valve (11) and the first online pH show to count (13) chain operation water outlet pH value cannot reach in the normal range that the first online pH shows to count time, start water circulating pump (15), the water outlet of sea water desaltination water tank (1) is turned back to carbon dioxide absorption tower (4) and reuptakes carbonic acid gas, until the water outlet of sea water desaltination water tank (1) reaches in the normal range of the first online pH table meter; The normal range of the first online pH table meter is 4.4-4.6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410449695.1A CN104211224B (en) | 2014-09-04 | 2014-09-04 | A set of sea water desaltination resource utilization modifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410449695.1A CN104211224B (en) | 2014-09-04 | 2014-09-04 | A set of sea water desaltination resource utilization modifying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104211224A CN104211224A (en) | 2014-12-17 |
| CN104211224B true CN104211224B (en) | 2015-10-14 |
Family
ID=52093191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410449695.1A Active CN104211224B (en) | 2014-09-04 | 2014-09-04 | A set of sea water desaltination resource utilization modifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104211224B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3146326A1 (en) * | 1981-11-23 | 1983-06-09 | Kraftwerk Union AG, 4330 Mülheim | Plant for producing potable water from sea water |
| JPS61242690A (en) * | 1985-04-19 | 1986-10-28 | Sasakura Eng Co Ltd | Method for converting distilled water into drinking water in evaporative seawater desalination apparatus |
| CN102153168A (en) * | 2010-12-01 | 2011-08-17 | 杭州水处理技术研究开发中心有限公司 | Method for adjusting quality of water produced by desalting sea water by reverse osmosis method by using bipolar membrane |
| CN102897945A (en) * | 2012-08-01 | 2013-01-30 | 天津科技大学 | Method for mineralizing seawater desalted water |
| CN103990370A (en) * | 2014-06-06 | 2014-08-20 | 天津滨瀚环保科技发展有限公司 | Method for reducing emission of thermal power generation smoke CO2 and subsidiarily producing superfine nanometer CaCO3 from thermal power generation smoke CO2 |
-
2014
- 2014-09-04 CN CN201410449695.1A patent/CN104211224B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3146326A1 (en) * | 1981-11-23 | 1983-06-09 | Kraftwerk Union AG, 4330 Mülheim | Plant for producing potable water from sea water |
| JPS61242690A (en) * | 1985-04-19 | 1986-10-28 | Sasakura Eng Co Ltd | Method for converting distilled water into drinking water in evaporative seawater desalination apparatus |
| CN102153168A (en) * | 2010-12-01 | 2011-08-17 | 杭州水处理技术研究开发中心有限公司 | Method for adjusting quality of water produced by desalting sea water by reverse osmosis method by using bipolar membrane |
| CN102897945A (en) * | 2012-08-01 | 2013-01-30 | 天津科技大学 | Method for mineralizing seawater desalted water |
| CN103990370A (en) * | 2014-06-06 | 2014-08-20 | 天津滨瀚环保科技发展有限公司 | Method for reducing emission of thermal power generation smoke CO2 and subsidiarily producing superfine nanometer CaCO3 from thermal power generation smoke CO2 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104211224A (en) | 2014-12-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105246838B (en) | For preparing more batches of systems of the calcium bicarbonate solution suitable for remineralization desalted water and natural soft water | |
| CN107364994A (en) | A kind of method for treating desulfurized wastewater and system | |
| CN104355338A (en) | Chemical adding device for mobile sewage treatment equipment | |
| CN102020345A (en) | Application of calcium hydroxide in drink water treatment | |
| CN104211224B (en) | A set of sea water desaltination resource utilization modifying device | |
| CN207562827U (en) | A kind of lime saturated solution dosing system | |
| CN211393988U (en) | Acid fluoride waste water normal position processing system | |
| CN202951290U (en) | Coal preparation plant coal slurry sedimentation basin automatic drug feeding system | |
| CN202199314U (en) | Automatic chemical feeding device | |
| CN112320998A (en) | Automatic remote control tap water plant water treatment chemical adding control system and method thereof | |
| CN207175661U (en) | A kind of desulfurization wastewater treatment system | |
| CN202912750U (en) | Desalinated sea water post-processing equipment | |
| CN103922450B (en) | A kind of method and device being applicable to ground water hardness removal | |
| CN207294213U (en) | The aeration water quality regulating device of marine nuclear power platform fresh water | |
| CN106608692A (en) | Efficient and controllable desalinated seawater mineralization process | |
| CN104192975B (en) | A kind of hardening and tempering method of boats and ships reverse osmosis seawater desalting water | |
| CN109052833A (en) | A kind of recycled water process units | |
| CN204051572U (en) | Full-automatic lime chemicals dosing plant | |
| CN204474493U (en) | A kind of medicine company sewage Simple treatment device | |
| CN113307342A (en) | Intelligent adding system for chemical phosphorus removal agent of high-density tank | |
| CN220861353U (en) | Automatic dispensing system and device | |
| CN206692480U (en) | One kind desalinizes seawater mineralising processing unit | |
| CN202465320U (en) | Cold and hot integrated water purifying device used for drinking water treatment | |
| CN204325030U (en) | Surface water melded system | |
| CN204848462U (en) | Lime of water softens complete sets |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210032 Room 309, building 15, hi tech Development Zone, Nanjing, Jiangsu. Patentee after: NANJING ZHONGDIAN ENVIRONMENTAL PROTECTION SOLID WASTE RESOURCES CO.,LTD. Address before: 210032 Room 309, building 15, hi tech Development Zone, Nanjing, Jiangsu. Patentee before: NANJING CEC ENVIRONMENTAL PROTECTION ENGINEERING CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210032 Room 309, building 15, hi tech Development Zone, Nanjing, Jiangsu. Patentee after: Nanjing Zhongdian Environmental Protection Group Co.,Ltd. Address before: 210032 Room 309, building 15, hi tech Development Zone, Nanjing, Jiangsu. Patentee before: NANJING ZHONGDIAN ENVIRONMENTAL PROTECTION SOLID WASTE RESOURCES CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |