CN102660680A - Porous distributing valve for continuous adsorption exchange equipment - Google Patents
Porous distributing valve for continuous adsorption exchange equipment Download PDFInfo
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- CN102660680A CN102660680A CN201210129704XA CN201210129704A CN102660680A CN 102660680 A CN102660680 A CN 102660680A CN 201210129704X A CN201210129704X A CN 201210129704XA CN 201210129704 A CN201210129704 A CN 201210129704A CN 102660680 A CN102660680 A CN 102660680A
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- rolling disc
- continuous adsorption
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- 238000001179 sorption measurement Methods 0.000 title claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000005096 rolling process Methods 0.000 claims description 31
- 238000009826 distribution Methods 0.000 claims description 20
- 230000033001 locomotion Effects 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000008439 repair process Effects 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 238000002386 leaching Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000009854 hydrometallurgy Methods 0.000 description 4
- 238000005342 ion exchange Methods 0.000 description 4
- 238000004070 electrodeposition Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Multiple-Way Valves (AREA)
Abstract
A porous distributing valve for continuous adsorption exchange equipment comprises a turning disc, a fixed disc, fixed valves and movable valves, wherein the turning disc is coaxially and rotationally arranged relative to the fixed disc; the fixed valves are fixed on the turning disc; the movable valves are arranged on the fixed discs in a sliding manner; the number of the fixed valves and the number of the movable valves are the same, and the fixed valves and the movable valves are arranged in pairs; the fixed valves are matched with the movable valves paired with the fixed valves in arrayment and mounting angle; and movable water passing plugs, which are matched with one another and used for self-sealing, are arranged at one ends, which are in abutting joint with the movable valves, of the fixed valves. The porous distributing valve has a simple structure and low cost, and the cost is only one third of that of equipment from abroad; since runners on columns are independently sealed, the defect that a large-diameter planar sealing pad is easy to wear is overcome; columns have more combination forms, and can be used for treating several different leaching liquors simultaneously; the transmission and the control are simple, and the energy consumption is low; and the maintenance and the repair are simple, and the operation cost is low.
Description
Technical field
The present invention relates to hydrometallurgy heavy metal height refining electrodeposition technical field, relate in particular to a kind of porous distribution valve that is used for the continuous adsorption switching equipment.
Background technology
The continuous ionic exchange is present universally acknowledged advanced stripping technique.The continuous ion exchange apparatus of China was introduced domestic by Xiamen a company from Finland before and after 2002.At first be applied in the purifying of antibiotic purifying of pharmaceutical industry and Vc, be applied in biological extraction later on gradually, food-drink is to chemical industry and environmental protection field etc.But involving great expense of equipment, and be difficult on hydrometallurgy, apply.
The shortcoming of external continuous ion exchange apparatus:
A) complex structure, cost is high, and a day handles the price of the continuous ion exchange apparatus of 5000 cubes of leach liquors and wants more than 70 ten thousand;
B) major diameter flat seal requires working accuracy high;
C) flat seal easy abrasion can produce the flushing phenomenon between each post runner;
D) transmission and control are complicated, and power consumption is high;
E) the maintenance cost is high.
We dissect, the external continuous ion exchange apparatus of research and analysis, think major cause: the one, and it is a flat seal, and gasket is a tetrafluoroethylene, and the flat seal of this material will very big pressure make tetrafluoro be lined with certain deformation could good seal; The 2nd, general working accuracy is difficult to guarantee its stopping property, and under pressure, the two-way steel lower valve plate of porous distribution valve presses the polytetrafluoroethylsealed sealed pad on the valve plate, makes polytetrafluoroethylsealed sealed pad produce micro-deformation; Bank is gone into valve opening, in the process of relatively rotating, makes polytetrafluoroethylsealed sealed pad be easy to wearing and tearing; Thereby the feed liquid in each hole is leaked mutually, and this leakage is subtle, so hazardness is bigger; Cause quality product to descend elutriant, problems such as regenerated liquid consumption increase easily; The 3rd, the inletpiston sealing generally all is the sealing leak problem from handing over device continuously, changes or repair quite trouble, the completely knocked down valve body to repair.For this reason, the GX continuous adsorption switching equipment of our independent research has not only overcome the drawback of equipment, accomplish simple structure, easy to maintenance, performance can with imported product than beautiful.
Summary of the invention
The objective of the invention is to design a kind of novel porous distribution valve that is used for the continuous adsorption switching equipment, address the above problem.
To achieve these goals, the technical scheme of the present invention's employing is following:
A kind of porous distribution valve that is used for the continuous adsorption switching equipment; Comprise rolling disc, shaft collar, standing valve and moving valve; Said rolling disc is with respect to the rotatable setting of said shaft collar concentric, and said standing valve is fixed on the said rolling disc, and said moving valve is slidingly arranged on the said shaft collar; The number of said standing valve and said moving valve equates and pairing is provided with, each said standing valve and match with the arrangement and the setting angle of the said moving valve of its paired; The end that said standing valve and said moving valve connect is provided with and cooperates and be used for the self-packing movable water plug of crossing each other.
Also comprise rotary power unit and hydraulicefficiency system, said rolling disc and said rotary power unit are in transmission connection; Be processed with the piston function characteristic on the said moving valve and constitute piston element; Corresponding hole sealing is installed and is formed piston motion mechanism on said piston element and the said shaft collar; The said piston motion mechanism that said assembling back forms comprises upper oil cavitie and lower oil cavitie, and said upper oil cavitie and said lower oil cavitie all are communicated to said hydraulicefficiency system.
Also comprise terminal control system, angular transducer, moving valve position transducer and at least one sensor key position; Said sensor key position is uniformly distributed with and is fixed on the said rolling disc; Said angular transducer fixedly installs with respect to said shaft collar, and said angular transducer can detect position, said sensor key position; Said angular transducer, the equal data IO of said moving valve position transducer are to said terminal control system; The equal data IO of the wiring of said rotary power unit and the wiring of said hydraulicefficiency system are to said terminal control system.
Said rotary power unit is a servo electrical machinery system, and said rolling disc is connected transmission through gear train with the gear matched mode with said servo electrical machinery system.
Said gear train comprises master wheel and pinion(gear); Said master wheel is a follow-up pulley, is fixed on the said rolling disc; Said pinion(gear) is a motion-work wheel, is fixed on the output shaft of said servo electrical machinery system.
Said standing valve is distributed on the said rolling disc.
As depicted in figs. 1 and 2, rolling disc parts of the present invention comprise:
(1) rolling disc: be installed on the system spindle through bearing, carry the rotation of some standing valves.Leave the degree of freedom that circumferential direction rotates.
(2) standing valve (number and arrangement angle are according to the requirement of engineering layout): evenly be arranged in rolling disc and along with rotating disk rotates around main shaft.
(3) master wheel: fix with rolling disc, can drive traffic cycle and rotate.
(4) servomotor+pinion(gear): the drive unit of circumferential direction motion.
(5) sensor key position: be uniformly distributed with according to certain angle and be fixed in rolling disc, be used for the recognizate that safety is judged before the electrical action.
(6) angular transducer:, and judge system perspective through the position of identification " sensor key position ".
Shaft collar parts of the present invention are fixed on the system spindle, comprising:
(1) moving valve assembly: (number and arrangement angle and standing valve pairing) is distributed in shaft collar.
(2) shaft collar, and can install with corresponding aperture on the shaft collar and form that " piston motion mechanism realizes the degree of freedom that moves up and down.
(3) turnover oil pipe: around shaft collar, and ability IO hydraulicefficiency oil, control moving up and down of moving valve assembly.
(4) system spindle: carry total system weight, and as the rotation axis of rolling disc.
(5) moving valve position transducer: adopt the motion bound of contact switch with the restraint valve.
Other function uniies (figure slightly)
(1) tubing system: through different mode of connection, according to arts demand, realize connecting with standing valve and 40 moving valves with 40, parallel connection or other mix and connect;
(2) terminal control system: comprise input sensor signal, judge computing, output control preface, man machine operation interface;
(3) water pump valve system: the signal of receiving terminal unit, the circulation of controlled liq stops etc.;
(4) hydraulicefficiency system: through the signal of receiving terminal unit, control hydraulicefficiency oil throws into/hydro-cylinder that sucking-off shaft collar and moving valve are formed, the vertical movement of realization moving valve.
(5) other: outward appearance Abdeckteil, power distribution cabinet, resin solution retort, support structure erecting frame etc.
System of the present invention is than the conventional art advantage:
(1) break the whole up into parts, every pair of valve (standing valve+moving valve) can independently overhaul, replacement.
(2) when certain breaks down to valve, can directly skip the fault valve, switch the pipeline access fast and close on valve, avoid the stagnation of work and produce the line paralysis.
(3) standing valve is with after moving valve cooperates up and down, backs down mutually and realizes flow of solution because of adopting mechanical system through crossing the water plug up and down, and stability and safety system such as battery valve is high than adopting.
(4) system extension property is good, if need productivity gain, can under the prerequisite that keeps core control system and mechanical motion mode, get final product through increasing the rolling disc shaft collar and increasing the valve logarithm.
(5) oil cylinder and valve are integrated, save unnecessary mechanical transmission, only need a table oil pump.
Therefore, beneficial effect of the present invention can be summed up as follows:
The one, simple in structure, cost is low, has only 1/3 of overseas equipment price;
The 2nd, the sealing of each post (comprising said standing valve and corresponding said moving valve) runner is independent sealing, has overcome major diameter planar sealing pad shortcoming easy to wear;
The 3rd, each post has more combination, can handle several kinds of different vat liquors simultaneously;
The 4th, transmission and control are simple, and it is low to consume energy;
The 5th, maintenance is simple, and run cost are low.
Description of drawings
Fig. 1 and Fig. 2 are structural representation of the present invention.
Fig. 3 is the structural representation of moving valve principle of work of the present invention.
Fig. 4 is a workflow synoptic diagram of the present invention.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the present invention is solved, below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Like Fig. 1 to a kind of porous distribution valve that is used for the continuous adsorption switching equipment shown in Figure 3; Comprise rolling disc 1, shaft collar 2, standing valve 3 and moving valve 4; Said rolling disc 1 is with respect to the rotatable setting of said shaft collar 2 concentrics; Said standing valve 3 is fixed on the said rolling disc 1, and said moving valve 4 is slidingly arranged on the said shaft collar 2; The number of said standing valve 3 and said moving valve 4 equates and pairing is provided with, each said standing valve 3 and match with the arrangement and the setting angle of the said moving valve 4 of its paired; The end that said standing valve 3 and said moving valve 4 connect is provided with and cooperates and be used for the self-packing movable water plug 5 of crossing each other.The porous distribution valve that is used for the continuous adsorption switching equipment also comprises rotary power unit 6 and hydraulicefficiency system, and said rolling disc 1 is in transmission connection with said rotary power unit 6; Be processed with the piston function characteristic on the said moving valve 4 and constitute piston element 7; Corresponding hole sealing is installed and is formed piston motion mechanism on said piston element 7 and the said shaft collar 2; The said piston motion mechanism that said assembling back forms comprises upper oil cavitie and lower oil cavitie, and said upper oil cavitie and said lower oil cavitie all are communicated to said hydraulicefficiency system through turnover oil pipe 13.
In the preferred embodiment; Also comprise terminal control system, angular transducer 8, moving valve position transducer 9 and at least one sensor key position 10; Said sensor key position 10 is uniformly distributed with and is fixed on the said rolling disc 1; Said angular transducer 8 fixedly installs with respect to said shaft collar 2, and said angular transducer 8 can detect 10 positions, said sensor key position; Said angular transducer 8, the 9 equal data IO of said moving valve position transducer are to said terminal control system; The equal data IO of the wiring of said rotary power unit 6 and the wiring of said hydraulicefficiency system are to said terminal control system.Said rotary power unit 6 is a servo electrical machinery system, and said rolling disc 1 is connected transmission through gear train with the gear matched mode with said servo electrical machinery system.Said gear train comprises master wheel 11 and pinion(gear) 12; Said master wheel 11 is a follow-up pulley, is fixed on the said rolling disc 1; Said pinion(gear) 12 is a motion-work wheel, is fixed on the output shaft of said servo electrical machinery system.Said standing valve 3 is distributed on the said rolling disc 1.
In the present embodiment, the manufacturing way of continuous adsorption switching equipment porous distribution valve system new installation, the porous distribution valve is divided into swivel and fixed part; The swivel hole is imported and exported with corresponding resin column and is linked to each other; And whole link to each other with rotating disk, can be with the plane of rotation rotation of rotating disk, the hole of fixed part is identical with the quantity of swivel; And with the outside part matching board on corresponding hole link to each other, break plate links to each other with the materail tube of feed liquid in-out apparatus.Fixed part integral body links to each other with anchor post, keeps fixing.The valve opening of porous distribution valve is corresponding one by one; The hydraulic pressure self-sealing valve mounting block of swivel links to each other with resin column; The hydraulic pressure selfsealings movable piece of fixed part links to each other with the variant feed liquid pipe in the external world, and different feed liquid (stoste, elutriant, regenerated liquid etc.) is through hydraulic pressure self-sealing valve turnover resin column.
After the self-sealing valve of installing on the porous distribution valve assembly all combined, system got into working stage, absorption, wash-out; Regeneration is cleaned and is carried out simultaneously, according to processing requirement; Behind the certain hour, valve body moves down under the effect of oil pressure under the self-sealing valve, and the following valve body of self-sealing valve is separated with upper valve body; After self-sealing valve was thrown off fully, following valve body and upper valve body all can be from dynamic seals, and feed liquid can not spill outside the valve. and the system on-line detecting system confirms that each self-sealing valve all throws off and corresponding distance arranged; The swivel of porous distribution valve rotates an angle under the driving of servo drive system then, the angle of a rotation=360/ adsorption column number, or the multiple of a rotational angle; Under the control of automatic angle positioning system, accurately the location is all aimed at each self-sealing valve each other; Valve body moves up under the effect of oil pressure under the self-sealing valve, the following valve body of self-sealing valve is sealed with upper valve body fully combine. and after self-sealing valve combined fully, upper valve body became one with following valve body; Feed liquid can be smoothly through and also can not leak outside. after system's on-line detecting system confirmed that each self-sealing valve all combines fully, system got into working stage. so circulation, realized continuous adsorption simultaneously; Wash-out, regeneration, the technological process of flushing.
Its facility compact, system simplification, pipeline reduction and floor space are few; Overcome in the traditional continuous ionic exchange bed adsorption process and be prone to the bias current phenomenon, caused the vacant waste of part resin, the resin service efficiency is low; And the consumption that has solved chemical reagent in desorb, the regenerative process is many; Waste is serious, and the discharging of waste liquid amount is big, and the cycle of operation is longer; The pipeline and the valve that connect are many, problem and shortcomings such as complex operation;
The new installation of continuous adsorption switching equipment kernel component porous distribution valve of the present invention system; Can in extensive hydrometallurgy is produced, use, it makes hydrometallurgy with the combination of the direct electrodeposition apparatus of GX; From ore to the refining electrodeposition; Its main process become if dissolve soak, purification enrichment---direct these three operations of galvanic deposit, can realize robotization, serialization, extensive chemical industry production simultaneously, can realize that again ore is low-grade; Output high-quality (is that example can reach more than 99.99% with copper), low cost of investment, high production, less energy-consumption, low-carbon emission, the friendly type new technology of low contaminate environment.
The present invention is with change metallurgical technology process, and energy-saving and emission-reduction are to low taste
More than through the detailed description of concrete and preferred embodiment the present invention; But those skilled in the art should be understood that; The present invention is not limited to the above embodiment; All within spirit of the present invention and principle, any modification of being done, be equal to replacement etc., all should be included within protection scope of the present invention.
Claims (6)
1. porous distribution valve that is used for the continuous adsorption switching equipment; It is characterized in that: comprise rolling disc, shaft collar, standing valve and moving valve; Said rolling disc is with respect to the rotatable setting of said shaft collar concentric; Said standing valve is fixed on the said rolling disc, and said moving valve is slidingly arranged on the said shaft collar; The number of said standing valve and said moving valve equates and pairing is provided with, each said standing valve and match with the arrangement and the setting angle of the said moving valve of its paired; The end that said standing valve and said moving valve connect is provided with and cooperates and be used for the self-packing movable water plug of crossing each other.
2. the porous distribution valve that is used for the continuous adsorption switching equipment according to claim 1 is characterized in that: also comprise rotary power unit and hydraulicefficiency system, said rolling disc and said rotary power unit are in transmission connection; Be processed with the piston function characteristic on the said moving valve and constitute piston element; Corresponding hole sealing is installed and is formed piston motion mechanism on said piston element and the said shaft collar; The said piston motion mechanism that said assembling back forms comprises upper oil cavitie and lower oil cavitie, and said upper oil cavitie and said lower oil cavitie all are communicated to said hydraulicefficiency system.
3. the porous distribution valve that is used for the continuous adsorption switching equipment according to claim 2; It is characterized in that: also comprise terminal control system, angular transducer, moving valve position transducer and at least one sensor key position; Said sensor key position is uniformly distributed with and is fixed on the said rolling disc; Said angular transducer fixedly installs with respect to said shaft collar, and said angular transducer can detect position, said sensor key position; Said angular transducer, the equal data IO of said moving valve position transducer are to said terminal control system; The equal data IO of the wiring of said rotary power unit and the wiring of said hydraulicefficiency system are to said terminal control system.
4. the porous distribution valve that is used for the continuous adsorption switching equipment according to claim 2; It is characterized in that: said rotary power unit is a servo electrical machinery system, and said rolling disc is connected transmission through gear train with the gear matched mode with said servo electrical machinery system.
5. the porous distribution valve that is used for the continuous adsorption switching equipment according to claim 4, it is characterized in that: said gear train comprises master wheel and pinion(gear); Said master wheel is a follow-up pulley, is fixed on the said rolling disc; Said pinion(gear) is a motion-work wheel, is fixed on the output shaft of said servo electrical machinery system.
6. the porous distribution valve that is used for the continuous adsorption switching equipment according to claim 1, it is characterized in that: said standing valve is distributed on the said rolling disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210129704XA CN102660680B (en) | 2012-04-27 | 2012-04-27 | Porous distributing valve for continuous adsorption exchange equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210129704XA CN102660680B (en) | 2012-04-27 | 2012-04-27 | Porous distributing valve for continuous adsorption exchange equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102660680A true CN102660680A (en) | 2012-09-12 |
| CN102660680B CN102660680B (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210129704XA Expired - Fee Related CN102660680B (en) | 2012-04-27 | 2012-04-27 | Porous distributing valve for continuous adsorption exchange equipment |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3867961A (en) * | 1973-11-16 | 1975-02-25 | Calgon Corp | Control valve for water conditioners |
| CN2076098U (en) * | 1990-05-07 | 1991-05-01 | 拓国琦 | Multiposition combined water leading valve |
| CN2218288Y (en) * | 1995-03-21 | 1996-01-24 | 辛林 | Multi-channel switching valve of sodium ion exchanger |
| CN2291543Y (en) * | 1997-01-31 | 1998-09-16 | 郭锋光 | Plane-rotating automatic opening and closing multipie-way valve |
| CN1244242A (en) * | 1997-01-23 | 2000-02-09 | 京石产业株式会社 | Self-seal type double-pipe joint |
| US7364654B2 (en) * | 2003-12-23 | 2008-04-29 | Christopher Schulz | In-home water treatment system |
| CN201705998U (en) * | 2010-06-01 | 2011-01-12 | 刘敏 | Process control valve for double-pot ion exchanger |
| CN201779323U (en) * | 2010-09-27 | 2011-03-30 | 重庆四联油气设备制造有限公司 | Liquefied natural gas (LNG) dispenser release coupler |
| CN201844086U (en) * | 2010-08-31 | 2011-05-25 | 河南航天压力元件有限公司 | Self-sealed transfusion valve assembly, and plug valve and socket valve thereof |
-
2012
- 2012-04-27 CN CN201210129704XA patent/CN102660680B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3867961A (en) * | 1973-11-16 | 1975-02-25 | Calgon Corp | Control valve for water conditioners |
| CN2076098U (en) * | 1990-05-07 | 1991-05-01 | 拓国琦 | Multiposition combined water leading valve |
| CN2218288Y (en) * | 1995-03-21 | 1996-01-24 | 辛林 | Multi-channel switching valve of sodium ion exchanger |
| CN1244242A (en) * | 1997-01-23 | 2000-02-09 | 京石产业株式会社 | Self-seal type double-pipe joint |
| CN2291543Y (en) * | 1997-01-31 | 1998-09-16 | 郭锋光 | Plane-rotating automatic opening and closing multipie-way valve |
| US7364654B2 (en) * | 2003-12-23 | 2008-04-29 | Christopher Schulz | In-home water treatment system |
| CN201705998U (en) * | 2010-06-01 | 2011-01-12 | 刘敏 | Process control valve for double-pot ion exchanger |
| CN201844086U (en) * | 2010-08-31 | 2011-05-25 | 河南航天压力元件有限公司 | Self-sealed transfusion valve assembly, and plug valve and socket valve thereof |
| CN201779323U (en) * | 2010-09-27 | 2011-03-30 | 重庆四联油气设备制造有限公司 | Liquefied natural gas (LNG) dispenser release coupler |
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| CN102660680B (en) | 2013-07-24 |
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