CN2830828Y - Full-automatic rotating shaft type multi-way control valve - Google Patents
Full-automatic rotating shaft type multi-way control valve Download PDFInfo
- Publication number
- CN2830828Y CN2830828Y CN 200520089844 CN200520089844U CN2830828Y CN 2830828 Y CN2830828 Y CN 2830828Y CN 200520089844 CN200520089844 CN 200520089844 CN 200520089844 U CN200520089844 U CN 200520089844U CN 2830828 Y CN2830828 Y CN 2830828Y
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- Prior art keywords
- spool
- valve body
- positioning disk
- valve
- drain opening
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- Expired - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 87
- 230000008929 regeneration Effects 0.000 claims abstract description 27
- 238000011069 regeneration method Methods 0.000 claims abstract description 26
- 238000005406 washing Methods 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 5
- 238000001914 filtration Methods 0.000 abstract description 4
- 238000005342 ion exchange Methods 0.000 abstract description 2
- 238000011001 backwashing Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 16
- 150000003839 salts Chemical class 0.000 description 13
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 230000008676 import Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 150000002500 ions Chemical group 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Multiple-Way Valves (AREA)
Abstract
The utility model relates to a full-automatic pivot formula multiple control valve, especially a be applied to water treatment process's pivot formula multiple control valve. The water inlet and the water outlet are arranged on the middle layer, and the water inlet, the backwashing water outlet, the water outlet and the regeneration liquid inlet are arranged on the middle layer, and the water inlet for forward washing is vertically communicated with the raw water inlet on the lower layer of the valve body through the water inlet vertical channel. The multi-way control valve can be applied to various ion exchange water treatment processes and other filtering layer filtered water treatment processes, and automatic operation of various filtering layer filtered water treatment equipment can be realized by applying the multi-way control valve.
Description
Technical field
The utility model relates to a kind of multi-way control valve, particularly a kind of full automatic revolution axis type multi-way control valve that is applied to water treatment technology.
Background technique
Floating bed ion-exchange unit in the past need be equipped with inlet valve, outlet valve, positive backwash inlet valve, top water discharging valve, bottom discharge valve, regenerated liquid inlet valve on the swap tank tank body.Each valve is that manually operated valve or mortor operated valve all work alone, need special operator to open and close one by one, be: system water: Kaiyuan water inlet valve, open and produce water valve, close upper and lower water drain valve and advance the saline solution valve as floating bed softened water equipment working procedure according to reproducer.During regeneration: the denidation draining: pass inlet valve, outlet valve are opened down drain valve.Advance salt regeneration: denidation is opened saline solution inlet valve and salt pump after 5 minutes.But the row while advancing also can promptly close down draining by vexed bed, after saline solution enters the setting liquid level, closes salt pump and saline solution inlet valve, vexed jar 30-40 minute.Just wash: open down drain valve and just washing inlet valve, just washing 20-30 minute.Backwash: open drain valve, close down drain valve and just washing inlet valve, open drain valve and backwash inlet valve, backwash is to water outlet chlorine root qualified (being generally 20-30 minute).Change over to standby and the system water state; Drain valve is closed in the pass, transfers to closing the backwash inlet valve when standby, opens outlet valve when transferring the system water state to.
Above program as seen, loaded down with trivial details programmed sequence of operations requires the operator strict execution just can finish regenerative process, the keying of each valve is not only required great effort, and also causes error easily.
The import and the homemade multi-way valve of Domestic market are limit because of structure at present, and flow is all less, and the single valve peak rate of flow is no more than 57mu/h, and can only be used to soften, not multiple bed valve.
Summary of the invention
The purpose of this utility model is to propose a kind of full-automatic revolution axis type multi-way control valve, this control valve is by valve body, compress spin-block, spool, positioning disk, drive link and automatic control section are formed, and can be applicable to different kinds of ions exchanged water treatment process, also can be applicable to other filtering layer filtered water treatment process, use the automatic operation that multi-way control valve can be realized various filtering layer filtered water processing equipmenies.
The utility model is achieved through the following technical solutions:
Full-automatic revolution axis type multi-way control valve compresses spin-block, spool by valve body, positioning disk, drive link is formed, and has three layers of hole on the valve body wall, the upper strata has only a through hole, in, following every layer of hole be four, the middle level is provided with just washes water intake, the backwash drain opening, water outlet advances the regenerated liquid mouth, is just washing water intake by water inlet vertical passage and valve body lower floor water intake vertical connection, backwash drain opening and lower floor's regeneration drain opening are by draining vertical channel vertical connection, and water outlet directly connects outlet pipe.
Lower floor is provided with raw water inlet, the regeneration drain opening is just being washed drain opening, the backwash water intake, raw water inlet leads to outer intake pipe and the waste pipe of directly being connected of valve body with just washing drain opening, and raw water inlet communicates by the water inlet horizontal channel with the backwash water intake and just washing the water intake vertical connection with the middle level.Regeneration drain opening communicate by the draining horizontal channel with just washing drain opening, and with middle level backwash drain opening vertical connection.
Automatic control section: motor links positioning disk W1, have pin hole on the positioning disk W1, contact pin (28) contacts with the normally closed sensitive switch K2 spring sheet in positioning disk W2 top, positioning disk W2 is in coaxial with drive link, positioning disk W2 is provided with stopping projection (26), positioning disk W2 go up to also have with spool on chamber under shed (7) be positioned at regeneration contact (27) on the same vertical line.
Every layer of interchannel all has seal with elastometic washer, with the precision-fit sealing that relies between the opening of layer between spool and valve body.
The valve body center is that drum type spool spool is isolated into two Room up and down, following chamber is uncovered, top, last chamber connects drive link and positioning disk W2, have a, b floor hole on the barrel of last chamber, the b layer has only the corresponding valve body middle level perforate of an opening, the c layer has only the perforate of the corresponding valve body of opening lower floor, is 180 degree and arranges that up and down valve core opening is communicated with circumference upper valve body through hole on barrel.
Advantage of the present utility model and effect are:
1. the utility model is concentrated a plurality of valves on the tank body and is connected on the multi-way valve, on this multi-way valve, rotatablely moves by spool, realizes the switching of different Kong Lu, finishes each program thus and switches.
2. existing market has the import multi-way valve, and some homemade multi-way valve are also arranged, and its structure is divided into two kinds of the flashboard type multi-way valve of motor-driven piston valve core multi-way valve and hydraulic pressure or Electromagnetic Drive.The multi-way valve that the utility model proposes is a kind of motor-driven revolution axis type spool multi-way valve simple in structure.
3. the import and the homemade multi-way valve of Domestic market are limit because of structure at present, and flow is all less.The single valve peak rate of flow is no more than 57m
3/ h; The multi-way valve flow that the utility model proposes is big, can reach 150m
3/ h.
4. the import and the homemade multi-way valve of Domestic market can only be used to soften at present, not multiple bed valve.The multi-way valve that the utility model proposes adopts stainless steel material, both can be used for the softening multiple bed desalination that also can be used for.
5. the multi-way valve that the utility model proposes is simple in structure, rate of fault is low, maintenance is convenient.
Description of drawings
The utility model Fig. 1 is the overall structure sectional view;
The utility model Fig. 2 is the A-A sectional view of Fig. 1;
The utility model Fig. 3 is the B-B sectional view of Fig. 1;
The utility model Fig. 4 is the C-C sectional view of Fig. 1;
The utility model Fig. 5 is the left sectional view of Fig. 1;
The utility model Fig. 6 is the multi-way valve working state schematic representation;
The utility model Fig. 7 is a multi-way valve valve hole part structural representation;
The utility model Fig. 8 is multi-way valve Automatic Control Theory figure;
The utility model Fig. 9 controls positioning disk W1 schematic representation automatically for multi-way valve;
The utility model Figure 10 controls positioning disk W2 schematic representation automatically for multi-way valve.
Embodiment
As Fig. 1～shown in Figure 5, compress spin-block (4) fixed spool (3) and valve body (5), valve body lower interface (18) connects swap tank tank body under shed, has three layers of hole on valve body (5) wall, and the upper strata has only a tank deck connection mouth (14) to connect the swap tank roof opening.
In, down every layer be four holes, the middle level is followed successively by counterclockwise by 9 o ' clock positions and is just washing water intake (10), backwash drain opening (20), water outlet (15) advances regenerated liquid mouth (19).Advancing regenerated liquid mouth (19) leads to outside the valve body by salt pump connection regeneration liquid pool, just washing water intake (10) by water inlet vertical passage (11) and valve body lower floor raw water inlet (13) vertical connection, backwash drain opening (20) is regenerated drain opening (22) by draining vertical passage (21) vertical connection with lower floor, and water outlet (15) directly connects outlet pipe.
Lower floor is followed successively by raw water inlet (13) counterclockwise by 9 o ' clock positions, and regeneration drain opening (22) is just being washed drain opening (16), backwash water intake (24).Raw water inlet (13) with just wash drain opening (16) and lead to valve body and directly be connected outward intake pipe and waste pipe.Raw water inlet (13) communicates by water inlet horizontal channel (12) with backwash water intake (24) and is just washing water intake (10) vertical connection with the middle level.Regeneration drain opening (22) communicate by draining horizontal channel (23) with just washing drain opening (16), and with middle level backwash drain opening (20) vertical connection.
Valve body adopts the precision stainless steel casting, and O-ring seal (8) sealing is all arranged between every layer of duct, relies on the precision-fit sealing between spool (3) and valve body between the opening with layer.
As shown in Figure 6, the resin container upper and lower opening is connected with lower interface on the multi-way valve respectively, simultaneously multi-way valve also with former water intake pipe, chemical water outlet pipe, waste pipe and inhale the regenerated liquid pipe and be connected.
As shown in Figure 7, the valve body center is a stainless steel drum type spool, and spool is isolated into two Room up and down by upper and lower chamber interlayer (17), and following chamber is uncovered, and top, last chamber connects spool drive link (1) and positioning disk W2 (2).Have a, b floor hole on the barrel of last chamber, chamber round (6) connects the swap tank roof opening by valve body upper strata tank deck connection mouth (14) on a floor spool, the b floor has only the corresponding valve body of chamber under shed (7) middle level perforate on the spool, and the c floor has only the corresponding valve body of chamber opening (9) lower floor perforate under the spool.Be 180 degree and arrange up and down on barrel, they dock with certain a pair of perforate up and down of valve body, just have been communicated with a kind of water-flowing path.Spool rotates then that different valve holes is communicated with on the valve core opening and circumference, will realize that different pipelines switch, and promptly finish each reproducer.
Introduce each working state of multi-way valve respectively according to regeneration step below
State is made in the system water conservancy project: chamber opening (9) is positioned at 9 o ' clock positions under the spool, facing to valve body lower floor raw water inlet (13), at the bottom of former water flows under the multi-way valve chamber and enters the swap tank jar by valve body lower interface (18) again, the resin layer of upwards flowing through, flow into chamber on the spool by roof hatch through chamber round (6) on tank deck connection mouth (14) and the spool, last chamber opening is and 3 o ' clock positions that facing to water outlet (15), softened water is flowed out by water outlet (15).
The displacement of suction salt: spool is rotated counterclockwise 45 degree, and after chamber opening (9) was crossed raw water inlet (13) under the spool, facing to valve body regeneration drain opening (22), under shed (7) 12 o ' clock positions in chamber faced toward into regenerated liquid mouth (19) on the spool at 6 o ' clock positions.With the sensitive switch k3 spring sheet of controlling salt pump circuit contact circuit connection, salt pump startup with regeneration contact on the positioning disk W2 that the spool drive link is connected this moment.Regenerated liquid enters chamber on the spool by advancing regenerated liquid mouth (19) through chamber under shed (7) on the spool, enter swap tank by chamber round (6) on the spool and tank deck connection mouth (14) by tank deck, the resin layer of flowing through is downwards replaced, and discharges (can be set at 30-60 minute) by jar bottom opening chamber opening (9) under valve body lower interface (18) and spool by regeneration drain opening (22) again.
Just wash: spool is rotated counterclockwise 45 degree, chamber opening (9) is just being washed drain opening (16) at 3 o ' clock positions facing to valve body under the spool, after chamber under shed (7) is crossed into regenerated liquid mouth (19) on the spool, regeneration contact on the positioning disk W2 is left with the sensitive switch k3 spring sheet of controlling the salt pump circuit, circuit disconnects, salt pump stops, when chamber under shed (7) on the spool is aimed at when just washing water intake (10) at 9 o ' clock positions, the water inlet of former water enters tank deck by valve inleting water vertical passage (11) by just washing water intake (10) chamber round (6) and tank deck connection mouth (14) on spool, the resin layer of flowing through downwards cleans, and waste water flows under the spool chamber through valve body lower interface (18) at the bottom of by jar and discharges (can be set at 10-30 minute) by just washing drain opening (16) again.
Backwash: spool is rotated counterclockwise 45 degree, chamber opening (9) faces toward valve body backwash water intake (24) at 12 o ' clock positions under the spool, after chamber under shed (7) is crossed and is just washed water intake (10) on the spool, aim at backwash drain opening (20) at 6 o ' clock positions, former water water inlet enters spool through valve body backwash water inlet horizontal channel (12) by backwash water intake (24) chamber opening (9) under spool, at the bottom of entering the swap tank jar by valve body lower interface (18) again, the resin layer of upwards flowing through oppositely cleans, waste water enters chamber on the spool by tank deck chamber round (6) on tank deck connection mouth (14) and spool, flow out by backwash drain opening (20) again, discharge (can be set at 10-30 minute) through backwash draining vertical passage (21) and draining horizontal channel (23) by just washing drain opening (16) downwards, qualified until the chlorine root.
Change working state over to: spool continues to be rotated counterclockwise 45 degree, and facing to raw water inlet (13), chamber under shed (7) can produce water at 3 o ' clock positions facing to water outlet (15) to chamber opening (9) on the spool at 9 o ' clock positions under the spool.
Automatic control section
As shown in Figure 8, the design's multi-way valve can adopt servodrive mechanism, to make things convenient for manually-operable.Also operable automatically.
As shown in the figure, Z1 driven by motor positioning disk W1 (30) realizes the rotating speed of 180 minutes/circle, totally 90 pin holes on the positioning disk W1, each pin hole (29) is represented 2 minutes time, when going up contact pin (28), W1 contacts with the normally closed sensitive switch K2 spring sheet in positioning disk W2 top, when causing the connection of Z2 circuit, it is moving that the Z2 motor drives the spool rotation by spool drive link (1), is in coaxial positioning disk W2 with drive link and promptly turns.When next via positions is spent in rotation 45, stopping projection (26) on the positioning disk W2 is gone up this contact pin with positioning disk W1 and is pushed open, and itself and K2 sensitive switch spring sheet are left, and the Z2 circuit disconnects, spool and positioning disk W2 stop operating, and carry out the reproducer of this position.This moment, positioning disk W1 still was rotated further under the Z1 driven by motor, when next contact pin on it contacts with K2, Z2 connects once more, drive positioning disk W2 is rotated further 45 and spends next path, again this contact pin of positioning disk W1 is pushed open by another stopping projection that moves to this position then, positioning disk W2 is stopped operating once more, be parked in and carry out next reproducer on this path.Positioning disk W2 and spool stop time are exactly the used time of this program, and it is to be determined by the interval of the contact pin on positioning disk W1 hole count, and can change by the interval of adjusting contact pin and contact pin.So continue to finish whole regenerative process.
Positioning disk W2 go up to also have with spool on chamber under shed (7) be positioned at regeneration contact (27) on the same vertical line, when chamber under shed (7) on the spool forwards into the regenerated liquid mouth to, the regeneration contact contacts with the sensitive switch k3 spring sheet of control salt pump circuit, and circuit is connected and made the salt pump startup.When chamber under shed (7) on the spool when forwarding the next position to, the regeneration contact disconnects with the sensitive switch k3 spring sheet of control salt pump circuit, and salt pump stops.
When positioning disk W2 rotates a whole circle, when regeneration ending is got back to working state, W1 still continues rotation, regeneration ending projection (25) before positioning disk W1 is positioned at initial position is when rotating to initial position, the sensitive switch K1 that often opens that regeneration ending position projection will be controlled the Z1 circuit engages, the Z1 circuit is disconnected, and W1 stops operating, and reproducer stops.The contact pin of positioning disk W1 does not also engage with K2, and positioning disk W2 and spool just are parked in the system water conservancy project all the time and make state.
When the resin container water outlet was lost efficacy once more, manual equidirectional turn positioning disk W1 made the regeneration ending projection of positioning disk W1 leave initial position, but first contact pin can not surpass initial position, this moment, Z1 connected, and first contact pin combines with K1 after a while, begins the automatic regeneration program once more.As think to begin automatically reproducer, and available as above positioning disk W1 contact pin regularly promotes the regeneration ending projection with the principle that K2 regularly engages, and the break-make of control Z1 circuit gets final product.
Claims (5)
1. full-automatic revolution axis type multi-way control valve, by valve body, compress spin-block, spool, positioning disk, drive link and automatic control section are formed, it is characterized in that having on the valve body wall three layers of hole, the upper strata has only a tank deck connection mouth (14), in, following every layer of hole is four, the middle level is provided with and just washes water intake (10), backwash drain opening (20), water outlet (15), advance regenerated liquid mouth (19), just washing water intake (10) by water inlet vertical passage (11) and valve body lower floor raw water inlet (13) vertical connection, backwash drain opening (20) is regenerated drain opening (22) by draining vertical passage (21) vertical connection with lower floor, water outlet (15) directly connects outlet pipe, lower floor is provided with raw water inlet (13), regeneration drain opening (22), just washing drain opening (16), backwash water intake (24), raw water inlet (13) with just wash drain opening (16) and lead to valve body and directly be connected outward intake pipe and waste pipe, raw water inlet (13) communicates by water inlet horizontal channel (12) with backwash water intake (24) and is just washing water intake (10) vertical connection with the middle level, regeneration drain opening (22) communicate by draining horizontal channel (23) with just washing drain opening (16), and with middle level backwash drain opening (20) vertical connection.
2. full-automatic revolution axis type multi-way control valve as claimed in claim 1, it is characterized in that described automatic control section: motor links positioning disk W1, have pin hole on the positioning disk W1, contact pin (28) contacts with the normally closed sensitive switch K2 spring sheet in positioning disk W2 top, positioning disk W2 is in coaxial with drive link, positioning disk W2 is provided with stopping projection (26), positioning disk W2 go up to also have with spool on chamber under shed (7) be positioned at regeneration contact (27) on the same vertical line.
3. full-automatic revolution axis type multi-way control valve as claimed in claim 1 is characterized in that seal with elastometic washer is all arranged between every layer of duct, with the precision-fit sealing that relies between the opening of layer between spool and valve body.
4. full-automatic revolution axis type multi-way control valve as claimed in claim 1, it is characterized in that the valve body center is that drum type spool spool is isolated into two Room up and down, following chamber is uncovered, top, last chamber connects spool drive link (1) and positioning disk W2, have a, b floor hole on the barrel of last chamber, the b floor has only the corresponding valve body of chamber under shed (7) middle level perforate on the spool, and the c floor has only the corresponding valve body of chamber opening (9) lower floor perforate under the spool.
5. full-automatic revolution axis type multi-way control valve as claimed in claim 3 is characterized in that on the described spool that chamber opening (9) is 180 degree under chamber under shed (7), the spool on barrel to arrange that up and down valve core opening is communicated with circumference upper valve body through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520089844 CN2830828Y (en) | 2005-03-25 | 2005-03-25 | Full-automatic rotating shaft type multi-way control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520089844 CN2830828Y (en) | 2005-03-25 | 2005-03-25 | Full-automatic rotating shaft type multi-way control valve |
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| Publication Number | Publication Date |
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| CN2830828Y true CN2830828Y (en) | 2006-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200520089844 Expired - Fee Related CN2830828Y (en) | 2005-03-25 | 2005-03-25 | Full-automatic rotating shaft type multi-way control valve |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410385A (en) * | 2011-08-08 | 2012-04-11 | 温岭市润通电器有限公司 | Automatic blowdown control valve |
| CN102678969A (en) * | 2012-05-11 | 2012-09-19 | 烟台开发区龙源电力燃烧控制工程有限公司 | Distributed three-function valve |
| CN103672020A (en) * | 2012-09-06 | 2014-03-26 | 天津市医疗器械研究所 | Heat exchange water tank hand valve of artificial heart-lung machine |
| CN102057194B (en) * | 2008-06-09 | 2014-06-04 | 西门子公司 | Multi-way valve of a fuel system of a gas turbine |
| CN105020191A (en) * | 2015-07-31 | 2015-11-04 | 连云港大发环保科技有限公司 | Multi-channel valve used for multistage double-bed series connection process |
| CN105240335A (en) * | 2015-11-11 | 2016-01-13 | 柳州市力万科技有限公司 | Manipulator joint |
| CN106122521A (en) * | 2016-06-28 | 2016-11-16 | 苏州麦可旺志生物技术有限公司 | One kind of multiple fluids periodically directional stream-guidance device |
| CN106609868A (en) * | 2016-06-28 | 2017-05-03 | 苏州麦可旺志生物技术有限公司 | Periodic oriented flow guide device for various types of fluid |
| CN108253157A (en) * | 2016-12-29 | 2018-07-06 | 比亚迪股份有限公司 | Expand switch valve |
| CN108930819A (en) * | 2018-07-10 | 2018-12-04 | 上海洗霸科技股份有限公司 | Multi-way valve for multi-medium filtering tank water processing control |
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| CN113908792A (en) * | 2021-10-25 | 2022-01-11 | 上海丽唯生物科技有限公司 | Equipment and method for preparing nicotinamide ribose |
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| CN102057194B (en) * | 2008-06-09 | 2014-06-04 | 西门子公司 | Multi-way valve of a fuel system of a gas turbine |
| US8752583B2 (en) | 2008-06-09 | 2014-06-17 | Siemens Aktiengesellschaft | Multi-way valve of a fuel system of a gas turbine |
| CN102410385A (en) * | 2011-08-08 | 2012-04-11 | 温岭市润通电器有限公司 | Automatic blowdown control valve |
| CN102678969A (en) * | 2012-05-11 | 2012-09-19 | 烟台开发区龙源电力燃烧控制工程有限公司 | Distributed three-function valve |
| CN102678969B (en) * | 2012-05-11 | 2013-12-18 | 烟台开发区龙源电力燃烧控制工程有限公司 | Distributed three-function valve |
| CN103672020A (en) * | 2012-09-06 | 2014-03-26 | 天津市医疗器械研究所 | Heat exchange water tank hand valve of artificial heart-lung machine |
| CN105020191B (en) * | 2015-07-31 | 2017-05-10 | 连云港大发环保科技有限公司 | Multi-channel valve used for multistage double-bed series connection process |
| CN105020191A (en) * | 2015-07-31 | 2015-11-04 | 连云港大发环保科技有限公司 | Multi-channel valve used for multistage double-bed series connection process |
| CN105240335A (en) * | 2015-11-11 | 2016-01-13 | 柳州市力万科技有限公司 | Manipulator joint |
| CN106609868B (en) * | 2016-06-28 | 2018-11-09 | 苏州麦可旺志生物技术有限公司 | One kind of multiple fluid periodicity directional stream-guidance devices |
| CN106609868A (en) * | 2016-06-28 | 2017-05-03 | 苏州麦可旺志生物技术有限公司 | Periodic oriented flow guide device for various types of fluid |
| CN106122521B (en) * | 2016-06-28 | 2018-03-09 | 苏州麦可旺志生物技术有限公司 | One kind of multiple fluid periodicity directional stream-guidance devices |
| CN106122521A (en) * | 2016-06-28 | 2016-11-16 | 苏州麦可旺志生物技术有限公司 | One kind of multiple fluids periodically directional stream-guidance device |
| CN108253157A (en) * | 2016-12-29 | 2018-07-06 | 比亚迪股份有限公司 | Expand switch valve |
| TWI746931B (en) * | 2018-03-27 | 2021-11-21 | 日商島津製作所股份有限公司 | Multi-port valve for water quality analyzer |
| US11781660B2 (en) | 2018-03-27 | 2023-10-10 | Shimadzu Corporation | Multiport valve for water quality analyzer |
| CN108930819A (en) * | 2018-07-10 | 2018-12-04 | 上海洗霸科技股份有限公司 | Multi-way valve for multi-medium filtering tank water processing control |
| CN108930819B (en) * | 2018-07-10 | 2020-01-17 | 上海洗霸科技股份有限公司 | Multi-way valve for water treatment control of multi-medium filter tank |
| CN112479408A (en) * | 2020-12-08 | 2021-03-12 | 罗涛 | Multistage water purification unit |
| CN113908792A (en) * | 2021-10-25 | 2022-01-11 | 上海丽唯生物科技有限公司 | Equipment and method for preparing nicotinamide ribose |
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