CN1951268A - Showering water cyclic utilization system - Google Patents
Showering water cyclic utilization system Download PDFInfo
- Publication number
- CN1951268A CN1951268A CN 200610022050 CN200610022050A CN1951268A CN 1951268 A CN1951268 A CN 1951268A CN 200610022050 CN200610022050 CN 200610022050 CN 200610022050 A CN200610022050 A CN 200610022050A CN 1951268 A CN1951268 A CN 1951268A
- Authority
- CN
- China
- Prior art keywords
- filter
- utilization system
- cyclic utilization
- water
- shower 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.)
- Granted
Links
Images
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to a bath water circulated utilization system. Wherein, it comprises frame, dive pump, hair collector, flocculate device, quartz filter, active carbon filter, fine filter, safe filter, high-pressure pump, and anti-penetrate film. The hair collector uses multilayer filter cylinder with mesh, to filter hair; the flocculate device is tubular to reduce the system volume; the safe filter uses gradient fine filter element, with long service life. The invention is mounted on the vehicle chassis, to be drawn and moved.
Description
Technical field
The invention belongs to water treatment facilities, particularly a kind of shower water cyclic utilization system.
Background technology
Present most wastewater treatment mode, except industrial wastewater, the processing of sanitary wastewater is many adopt be activated sludge or oxidation ditch process as the important way of wastewater treatment, analyze these water treatment modes, have following some shortcomings:
1. the water standard after handling is lower, the standard of water reuse during sewage reuse just reaches;
2. water treatment system is bulky, and floor space is bigger, is generally fixedly, is difficult to move;
3. there be not special the processing to reach the cyclic utilization system that to drink with the shower standard at shower water.
4. because the handling process time is long, and the thermal loss of processing procedure is big, handles the back water temperature and descend greatly,, need to consume heating energy source if heat again as shower water.
In general sewage reuse, after shower water handled often as carwash, water flowers, low quality water such as flush toilet uses, water standard is lower, utilization rate is lower; In the department that work is carried out in some fields, personnel need carry out shower in the open air, often can face the situation that the guard station lacks the water source, and shower water can't enough be ensured.
Summary of the invention
The objective of the invention is: solving prior art can not be with the recycling technical problem that provides high-quality and can be used further to shower of shower water, a kind of multiple water treatment means that have are provided, can effectively filter, handle shower water, make the shower water can be recycling, output water quality reach can be once more as the quality of shower water, and removable as the open-air shower water cyclic utilization system that uses.
In order to realize purpose of the present invention, shower waste the multiple water treatment means have been adopted, comprise the immersible pump pressurization is set, and filter is set on immersible pump and the filtration treatment that hair interceptor carries out the big solid of hair class in the waste water is set in system, also be provided with flocculation plant to surfactant in waste water thereafter, colloids etc. carry out flocculation treatment, and installed the quartz sand filtration device additional, charcoal filter, security personnel's filter is to microorganism in the waste water, suspension, organic matter, particles etc. carry out filtration treatment, also are provided with reverse osmosis membrane apparatus and carry out desalting processing.After shower waste had carried out handling through above-mentioned multiple water treatment means, the water quality of water outlet can reach the standard of drinking water after carrying out ultraviolet sterilization.
Concrete technical scheme is as follows:
The shower water cyclic utilization system comprises shell and immersible pump, hair interceptor, flocculation plant, quartz sand filtration device, charcoal filter, accurate filter, security personnel's filter, high-pressure pump, reverse osmosis membrane apparatus by cross current is set in the enclosure successively.
Furthermore, described hair interceptor comprises the housing that is provided with delivery port and water inlet, be provided with two-layer at least filter cylinder in the housing, all be distributed with mesh on every metafiltration tube, the nozzle edge of every metafiltration tube all contacts with the inner walls watertightness, housing sidewall between the adjacent filter cylinder is provided with the secondary sewage draining exit, and the housing sidewall of close water inlet is provided with the one-level sewage draining exit.
Further scheme is, water inlet place of described immersible pump is provided with screen pack.Immersible pump herein is the low pressure immersible pump, is used for the shower waste pressurization, provides power source for going on foot down to handle, and screen pack is tentatively tackled large scale materials such as hairs.
Moreover described security personnel's filter adopts gradient filter element, and the outer precision of this filter core is 10 μ, and the internal layer precision is 3～5 μ; Described flocculation plant is the duct type flocculation plant.The duct type flocculation plant greatly reduces taking up room of flocculation plant, and pipeline can make the volume of whole system reduce greatly as required with different shape arrangement connections.
Further scheme is again, and described security personnel's filter adopts gradient filter element, and the outer precision of this filter core is 10 μ, and the internal layer precision is 3～5 μ.Adopt gradient filter element, not only improved filtering accuracy, also improved filter core service life.Because common filter core is the homogeneous precision, after extexine stops up, just need to change; And this gradient filter element carries out layering to the sized particles of the different-grain diameter that enters to hold back because the ectonexine precision differs, and has made full use of the inner and outer surface layers of filter core, has improved the effect of holding back of particle.Under normal water quality normal running conditions, filter core can be kept the service life more than 3～4 months, improves 50% than common filter element life.
In such scheme, described reverse osmosis membrane apparatus disposes the cleaning water tank that is communicated with it, can clean its reverse osmosis membrane, and the gauge tap of this cleaning water tank is controlled by programmable logic controller (PLC).
Further, described water pipe is provided with ultraviolet germicidal lamp, can kill bacterium in the water, can guarantee effectively that the water quality of exporting reaches drinking water standard.
In above-mentioned all schemes, described cyclic utilization system is mounted on the automobile chassis, under the chassis of automobile wheel is installed, and realizes vehicular shower water cyclic utilization system, to be applicable to open-air maybe the needs in the environment of mobile water.
The present invention adopts the screen pack of immersible pump, hair interceptor that the hair class large scale dirt in the shower waste is tentatively tackled, with flocculation plant the surfactant in the waste water, colloid are carried out flocculation treatment, by the quartz sand filtration device, adopt the micro flocculating filter mode, making most suspended substances in the waste water, colloid become little floccule body holds back in mechanical filter and removes, in case the activated carbon micropore of its postorder blocks, influence adsorption effect; And charcoal filter is used for adsorbing the organic matter and the chlorine residue of waste water, reduces the COD of water outlet; Security personnel's filter carries out the high-pressure pump and the reverse osmosis membrane apparatus of postorder to prevent particle, damage high-pressure pump parts and scuffing reverse osmosis membrane surface; Reverse osmosis membrane apparatus can carry out desalting processing to waste water, can remove 98% following inorganic salts, organic matter, microorganism, bacterium.And whole circulation is utilized system to be installed in to be provided with on the automobile chassis of wheel, can index the place that needs by automobile, is applicable in the wild environment.And because handling process of the present invention is brief, quick, the thermal loss of shower water in processing procedure is little, and temperature keeps constant substantially after treatment, when recycling as shower water once more, can effectively reduce the input of heating energy source.
As seen, adopt the present invention of said structure, compared with prior art, have the multiple water treatment means, can effectively filter, handle shower water, make the shower water can be recycling, output water quality reach can be once more as the quality of shower water, and removable as the wild environment use, be specially adapted to the occasion of lacks of water such as field exercise or operation, field study, field exploration and desert, mountain area.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Number in the figure, the 1st, immersible pump, the 2nd, hair interceptor, the 3rd, flocculation plant, the 4th, quartz sand filtration device, the 5th, charcoal filter, the 6th, accurate filter, the 7th, security personnel's filter, the 8th, high-pressure pump, the 9th, reverse osmosis membrane apparatus.
The specific embodiment
The present invention is further illustrated below in conjunction with specific embodiments and the drawings.
As shown in Figure 1, the shower water cyclic utilization system comprises shell and and immersible pump 1, hair interceptor 2, flocculation plant 3, quartz sand filtration device 4, charcoal filter 5, accurate filter 6, security personnel's filter 7, high-pressure pump 8, reverse osmosis membrane apparatus 9 by cross current is set in the enclosure successively.Dotted line among Fig. 1 and arrow have been represented the flow direction of the water in water pipe and the water pipe.Whole system is installed on the automobile chassis, and automobile chassis is arranged with wheel, can be pulled mobile.
Whole system can be divided into preliminary treatment, counter-infiltration, post processing three parts on handling process.
Preprocessing part comprises: immersible pump 1 (band screen pack), hair interceptor 2, flocculation plant 3, quartz sand filtration device 4, active carbon filter 5, accurate filter 6, security personnel's filter 7.
Entry place of immersible pump 1 has screen pack.Native system configuration low pressure immersible pump is used for the shower waste pressurization, and for preliminary treatment provides power source, screen pack is tentatively tackled big footpath materials such as hairs.
Because shower water might be surface water, contain a large amount of microorganism and suspension in the water, so water quality is relatively poor.Quartz sand filtration device 4 adopts the mode of micro flocculating filter; make most suspended substances in the water, colloid and become little floccule body and in the mechanical filter filtering layer, hold back and remove; the influent turbidity of guaranteeing active carbon filter 5 meets the requirements, in case the micropore of its activated carbon blocks, influences its adsorption capacity.
Filled with water is handled special-purpose activated charcoal in the charcoal filter 5, is used for the organic matter and the chlorine residue of adsorbed water, reduces water outlet COD.The backwash of charcoal filter 5 is controlled backwashing period with pressure differential before and after the equipment or operation hours, and when equipment ran to setting value, equipment carried out backwash.Backwash intensity should make filtering layer expand 15～25%.Charcoal filter water outlet chlorine residue is generally less than 0.1PPm under the normal operating position.
Configuration security personnel filter 7 enters high-pressure pump 8 and reverse osmosis membrane assembly to prevent particle before the reverse osmosis membrane apparatus 9, damages the parts of high-pressure pump 8 and scratches the reverse osmosis membrane surface.
Security personnel's filter 7 adopts gradient precision filter core, and the outer precision of this filter core is 10 μ, and the internal layer precision is 3～5 μ; So not only improve filtering accuracy, also improved filter core service life.Because common filter core is the homogeneous precision, after extexine stops up, just need to change; And gradient precision filter core carries out layering to the sized particles of water inlet different-grain diameter to hold back because the ectonexine precision differs, and has made full use of the inner and outer surface layers of filter core, has improved the effect of holding back of particle.Under normal water quality normal running conditions, filter core can be kept the service life more than 3～4 months, improves 50% than common filter element life.When this filter inlet outlet pressure differential reaches 1.0kg/cm
2The time need change the filter inner filter core.
High-pressure pump 8 adopts multistage high-pressure pumps, is the high-quality stainless steel, and it is little to have a volume, high efficiency, characteristics such as low noise.High-pressure pump 8 configuration star-triangle starting devices prevent that high-pressure pump from producing strong impact of water hammer when start and stop, damage high-pressure pump and reverse-osmosis membrane element.
The counter-infiltration part:
Reverse osmosis membrane apparatus 9 is a cover 2.0m
3/ h Reverse Osmosis Desalination Process Equipment.Be divided into main part, slave part and Chemical cleaning part.
(1) main part: reverse osmosis membrane apparatus is the whole system desalination, takes off organic cardiac component, through the water of reverse osmosis membrane processing, can remove 98% above inorganic salts, organic matter, microorganism, bacterium.
(2) auxiliary configuration
The dense water side of reverse osmosis membrane configuration magnetic valve every four hours with open, carry out low-pressure washing when shutting down, washes away the pollutant on reverse osmosis membrane surface, the dense water in the displacement pressure membrane pipe.
Reverse osmosis membrane apparatus 9 is provided with on the spot the directly local panel of pressure, dense water and the important parameters such as fresh water amount, electrical conductivity of display operation operating mode.
The high voltage protective switch is set behind the high-pressure pump 8, guarantees reverse osmosis membrane apparatus 9 safe and reliable operations.
Every pressure membrane pipe of counter-infiltration produces the water side and is provided with sample tap, conveniently takes a sample to check.
(3) Chemical cleaning of reverse osmosis membrane apparatus 9
Before removing daily start stop apparatus, carry out outside the low-pressure washing, also need carry out regular Chemical cleaning.
When chemically-cleaning device is subjected to boiler contamination at the element face, can carry out Chemical cleaning to reverse osmosis membrane apparatus.Simultaneously, for preventing the accumulation of face dirt, device adopts programmable logic controller (PLC) to carry out programme-control, automatically to membrane surface flushing 1 minute, can effectively prevent film surface pollution every 3 hours, prolongs its Chemical cleaning cycle and film service life.
For this reason, native system configuration one cover chemically-cleaning device, its flow process is as follows:
Clean water tank (providing for oneself) earlier, scavenging pump cleans reverse osmosis membrane apparatus then again;
Repeat said process.
Post processing partly comprises: storage tank and ultraviolet germicidal lamp.
Storage tank is sent in the reverse osmosis membrane apparatus water outlet, uses for shower.
Because the water outlet of reverse osmosis membrane apparatus does not have defence capability to bacterium, adds ultraviolet germicidal lamp on the desalted water pipeline, kills bacterium in the water, prevent that bacterium is influential and cause that bacterium and Escherichia coli exceed standard in the water to pure water.Can effectively guarantee directly drinking of this product water.
Above-mentioned shower water cyclic utilization system has following beneficial effect:
(1) quality classification water supply: shower waste has the delivery port of two kinds of different qualities after processing, one can be used as shower water, and another kind can be used as direct drinking water (can solve the Field Operational water shortage problem, satisfy the needs of field army);
(2) because handling process is brief, quick, and shower water thermal loss in the entire process process is little, it is constant substantially that temperature keeps, and leaving water temperature for shower water, can be saved a large amount of heating energy source about 30 ℃;
(3) operating cost≤1.5 yuan/ton;
(4) water reuse rate 〉=75%.
(5) water quality can reach the standard as table 1.
The effluent quality tables of data of table 1 shower water cyclic utilization system
| Test item | Shower waste | The drinking water standard GB5749-85 of country | Water outlet |
| Colourity | 21 | Colourity is no more than 15 degree and must not presents that other are heterochromatic | Do not detect |
| Smelly and the flavor (level) | 3 | Foreign odor, peculiar smell must not be arranged | 0 |
| Turbidity (NTU) | 8.6 | Be no more than 3 degree, special circumstances are no more than 5 degree | Do not detect |
| Total hardness (mg/L) | 109 | 450 | Do not detect |
| Chlorine residue (mg/L) | 0.13 | 0.5 | 0.05 |
| Iron (mg/L) | Do not detect | 0.3 | Do not detect |
| Cr VI (mg/L) | 0.09 | 0.05 | 0.05 |
| Plumbous (mg/L) | Do not detect | 0.05 | Do not detect |
| Cadmium (mg/L) | Do not detect | 0.01 | Do not detect |
| Phosphate (mg/L) | 0.01 | 5 | Do not detect |
| Sulfate (mg/L) | 8.7 | 250 | 1.7 |
| Copper (mg/L) | 0.1 | 1.0 | Do not detect |
| Total coli group (MPN/100mL) | 9200 | Must not detect | Do not detect |
| Excrement colibacillus group (MPN/100mL) | 9200 | Must not detect | Do not detect |
As can be seen from Table 1, the effluent quality of handling through above-mentioned mobile many shower water cyclic utilization system has surpassed request of national standard.
Claims (10)
1, shower water cyclic utilization system, comprise shell, it is characterized in that: immersible pump (1), hair interceptor (2), flocculation plant (3), quartz sand filtration device (4), charcoal filter (5), accurate filter (6), security personnel's filter (7), high-pressure pump (8), reverse osmosis membrane apparatus (9) by cross current are installed successively in the enclosure.
2, shower water cyclic utilization system according to claim 1, it is characterized in that: described hair interceptor comprises the housing that is provided with delivery port and water inlet, be provided with two-layer at least filter cylinder in the housing, all be distributed with mesh on every metafiltration tube, every metafiltration tube edge all contacts with the inner walls watertightness, housing sidewall between the adjacent filter cylinder is provided with the secondary sewage draining exit, and the housing sidewall of close water inlet is provided with the one-level sewage draining exit.
3, shower water cyclic utilization system as claimed in claim 1 or 2, it is characterized in that: water inlet place of described immersible pump (1) is provided with screen pack.
4, shower water cyclic utilization system as claimed in claim 1 or 2 is characterized in that: described security personnel's filter (7) adopts gradient filter element, and the outer precision of this filter core is 10 μ, and the internal layer precision is 3～5 μ; Described flocculation plant (3) is the duct type flocculation plant.
5, as shower water cyclic utilization system as described in the claim 3, it is characterized in that: described security personnel's filter (7) adopts gradient filter element, and the outer precision of this filter core is 10 μ, and the internal layer precision is 3～5 μ.
6, as shower water cyclic utilization system as described in the claim 4, it is characterized in that: described reverse osmosis membrane apparatus (9) disposes the cleaning water tank that is communicated with it, can clean its reverse osmosis membrane, and the gauge tap of this cleaning water tank is controlled by programmable logic controller (PLC).
7, as shower water cyclic utilization system as described in the claim 3, it is characterized in that: described reverse osmosis membrane apparatus (9) disposes the cleaning water tank that is communicated with it, can clean its reverse osmosis membrane, and the gauge tap of this cleaning water tank is controlled by programmable logic controller (PLC).
8, as shower water cyclic utilization system as described in claim 1 or 5 or 6 or 7, it is characterized in that: described water pipe is provided with ultraviolet germicidal lamp.
9, as shower water cyclic utilization system as described in claim 1 or 2 or 5 or 6 or 7, it is characterized in that: described cyclic utilization system is mounted on the automobile chassis, on the chassis of automobile wheel is installed.
10, as shower water cyclic utilization system as described in the claim 8, it is characterized in that: described cyclic utilization system is mounted on the automobile chassis, under the chassis of automobile wheel is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100220505A CN100443034C (en) | 2006-10-17 | 2006-10-17 | Showering water cyclic utilization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100220505A CN100443034C (en) | 2006-10-17 | 2006-10-17 | Showering water cyclic utilization system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1951268A true CN1951268A (en) | 2007-04-25 |
| CN100443034C CN100443034C (en) | 2008-12-17 |
Family
ID=38057978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100220505A Expired - Fee Related CN100443034C (en) | 2006-10-17 | 2006-10-17 | Showering water cyclic utilization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100443034C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104785053A (en) * | 2015-03-26 | 2015-07-22 | 长沙中瞿新材料科技有限公司 | Ambient air cleaning device |
| CN106264917A (en) * | 2016-08-31 | 2017-01-04 | 张连江 | A kind of medical treatment and nursing use water wash cycles sick bed |
| CN109019965A (en) * | 2018-08-17 | 2018-12-18 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of swimming pool, boat paradise water treatment facilities and application method |
| CN109437461A (en) * | 2018-12-27 | 2019-03-08 | 安徽普朗膜技术有限公司 | A kind of hotel's bath wastewater and rain waste water treating and reutilizing system and its reuse method |
| CN116282263A (en) * | 2023-03-28 | 2023-06-23 | 连云港市质量技术综合检验检测中心 | Reverse osmosis water purifying device capable of detecting water quality |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10129663A1 (en) * | 2001-06-20 | 2003-01-09 | Jens Fischer | System for cleaning swimming pool water uses a reactor with UV-C radiation and, floating granules of titanium oxide, to give a biological and biochemical action to kill bacteria |
| US20070181498A1 (en) * | 2004-05-10 | 2007-08-09 | Povl Kaas | Method and a system for purifying water from a basin, in particular a swimming pool |
| CN1285520C (en) * | 2004-05-26 | 2006-11-22 | 哈尔滨工业大学 | Integral phyical chemical treating method by bathing waste water reutilization |
| CN100467405C (en) * | 2004-07-02 | 2009-03-11 | 哈尔滨工业大学 | Water treatment method for recycling bath sewage using biological active carbon |
| CN2727152Y (en) * | 2004-09-28 | 2005-09-21 | 天津市寰昊科技有限公司 | Water purifying and circular treatment device for bathing pool and swimming pool |
-
2006
- 2006-10-17 CN CNB2006100220505A patent/CN100443034C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104785053A (en) * | 2015-03-26 | 2015-07-22 | 长沙中瞿新材料科技有限公司 | Ambient air cleaning device |
| CN106264917A (en) * | 2016-08-31 | 2017-01-04 | 张连江 | A kind of medical treatment and nursing use water wash cycles sick bed |
| CN109019965A (en) * | 2018-08-17 | 2018-12-18 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of swimming pool, boat paradise water treatment facilities and application method |
| CN109437461A (en) * | 2018-12-27 | 2019-03-08 | 安徽普朗膜技术有限公司 | A kind of hotel's bath wastewater and rain waste water treating and reutilizing system and its reuse method |
| CN116282263A (en) * | 2023-03-28 | 2023-06-23 | 连云港市质量技术综合检验检测中心 | Reverse osmosis water purifying device capable of detecting water quality |
| CN116282263B (en) * | 2023-03-28 | 2023-12-26 | 连云港市质量技术综合检验检测中心 | Reverse osmosis water purifying device capable of detecting water quality |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100443034C (en) | 2008-12-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101697155B1 (en) | Simple water purification appratus having central management and control system | |
| CN102674637A (en) | Household sewage treatment equipment | |
| CN100443034C (en) | Showering water cyclic utilization system | |
| KR101687571B1 (en) | Portable water purification apparatus of assembly type according to ingredients of water | |
| CN207243677U (en) | Non-pump type depth integrated equipment for sewage treatment | |
| CN201785809U (en) | Water supply and drainage circulating device for communities | |
| CN209890449U (en) | Wastewater MBR and ozone combined treatment device for municipal sewage plant | |
| CN210286943U (en) | Geothermal tail water desalination recycling treatment system | |
| CN210367354U (en) | Water body multi-layer composite purification device | |
| CN106007121B (en) | A kind of tap water entirety purification system | |
| CN105502748B (en) | Sewerage integrated processing method | |
| CN112979024B (en) | Building district rainwater recycling system | |
| CN215049377U (en) | Thing allies oneself with fuses straight drinking water system of pipeline | |
| CN105502749B (en) | Sewage integrated treatment device | |
| CN213388113U (en) | Intelligent water treatment device | |
| CN202529943U (en) | Printing and dyeing wastewater reclamation treating system | |
| CN112744950A (en) | River water purification, softening and desalination treatment system | |
| CN208104065U (en) | A kind of buried life integrated sewage treating apparatus | |
| CN102515421B (en) | Printing and dyeing wastewater recycling system | |
| KR101685929B1 (en) | Simple water purification appratus having near field communication function for water quality measuring and confirmation | |
| CN2457145Y (en) | Purifying equipment for living waste water | |
| CN206359356U (en) | A kind of wastewater from car washer advanced treating production line | |
| CN206188579U (en) | Normal water cyclic utilization equipment | |
| CN201193214Y (en) | Pretreatment system for piped direct-drinking water | |
| CN203794714U (en) | Intelligent full-automatic integrated automatic control water purification device |
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 | ||
| C56 | Change in the name or address of the patentee |
Owner name: SOUTHWEST RESEARCH + DESIGN INSTITUTE OF CHEMICAL Free format text: FORMER NAME: SOUTHWEST RESEARCH + DESIGN INSTITUTE OF CHEMICAL INDUSTRY |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 610225 box 445, South Airport Road, Sichuan, Chengdu Patentee after: Southwest Chemical Research & Design Institute Co., Ltd. Address before: 610225 box 445, South Airport Road, Sichuan, Chengdu Patentee before: Xinan Chemical Research & Design Inst. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20191017 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |