CN105587922A - Energy-saving pump control valve - Google Patents
Energy-saving pump control valve Download PDFInfo
- Publication number
- CN105587922A CN105587922A CN201510899850.4A CN201510899850A CN105587922A CN 105587922 A CN105587922 A CN 105587922A CN 201510899850 A CN201510899850 A CN 201510899850A CN 105587922 A CN105587922 A CN 105587922A
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- China
- Prior art keywords
- valve
- flap
- energy
- valve body
- pipeline
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000010992 reflux Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention discloses an energy-saving pump control valve. The energy-saving pump control valve comprises a valve body and a valve clack. The valve body is divided into a water inlet cavity and a water outlet cavity by the valve clack. The energy-saving pump control valve further comprises a valve clack control device, an emptying device and an external control pipeline. The valve clack control device is connected with the valve clack and located at the top end of the water outlet cavity. The energy-saving pump control valve has the following advantages that firstly, the valve clack and the valve body are connected in a shaftless mode, the valve clack is opened rapidly under the action of the pushing force of media and the pulling force of a piston rod after a pump is started, the opening angle of the valve clack can be maximized, full-diameter circulation in the valve body is achieved after the valve is opened, the water head loss coefficient is almost zero, energy consumption is extremely low, and the energy saving effect is remarkable; and secondly, the emptying device is arranged on the valve body, gas in the pipeline can be completely exhausted effectively through a floating ball, communication between two sets of connectors can be achieved or cut off through the up-down movement of the floating ball, the media are controlled to enter or come out of an upper cylinder body and a lower cylinder body of a piston cylinder, and accordingly the valve clack is controlled to open or close and pump-valve linkage is achieved.
Description
Technical field
The present invention relates to valve field, relate in particular to a kind of energy-saving pump-controlling valve being arranged on after centrifugal pump.
Background technology
Pump-controlling valve is arranged on after centrifugal pump, can link with water pump. After turn on pump, can reach drained ducted air, after formation vacuum, drive again valve; The fast quick-closing valve of termination of pumping energy, blocks medium, anti-backflow damage water pump. At present, the valve being arranged on market after centrifugal pump has the multiple valves such as check-valves, hydraulic butterfly valve, multipotency merit control valve for water pump, but in practical application, above valve all cannot be accomplished to drive valve after drained ducted air again, each turn on pump need first vacuumize drives valve again, after driving valve, all cannot reach full-bore, the loss of flood peak is large simultaneously, and energy consumption is high.
Summary of the invention
The object of the invention is to solve pump-controlling valve in prior art and before driving valve, cannot form vacuum, open the problem that cannot realize full-bore after valve, a kind of energy-saving pump-controlling valve that can realize pump, valve interlock is provided.
The technical solution used in the present invention is: energy-saving pump-controlling valve, comprise valve body and flap, and valve body is divided into intake antrum and water chamber by described flap, also includes flap control device, emptier and external control pipeline; Flap control device connects flap and is positioned at the top of water chamber, and described flap control device comprises hydraulic cylinder, piston and piston rod, and described piston rod is connected with flap by bearing pin, and described piston is positioned at hydraulic cylinder and hydraulic cylinder is divided into upper cylinder body and lower cylinder body; Emptier is positioned at the top of intake antrum, described emptier comprises emptying valve body, described emptying valve body is fixed in the top of the intake antrum of valve body, the affixed commutation valve gap of described emptying valve body, described reversal valve covers and is provided with exhaust outlet and two group interfaces, in the cavity that described emptying valve body and commutation valve gap form, is provided with ball float, the affixed reversing valve core of described ball float, described reversing valve core is suitable with two group interfaces of commutation valve gap, and described ball float and commutation valve cover chamber are provided with spring; External control pipeline comprises that two groups of pipelines are connected with two group interfaces of commutation valve gap respectively, and wherein one group is connecting the lower cylinder body of intake antrum and piston, and another group is connecting water chamber and piston upper cylinder body.
As a further improvement on the present invention, on described flap, be connected with flap eccentric block, on described valve body, be connected with the valve body limited block suitable with flap eccentric block.
As a further improvement on the present invention, in the inner chamber of described emptier, be also provided with spherical sealed circle, described spherical sealed circle emptying valve body and commutation valve gap between and suitable with ball float.
Further improve as of the present invention, on described two groups of pipelines, be respectively equipped with check-valves.
Further improve as of the present invention, between each interface of described commutation valve gap, be provided with sealing ring.
Further improve as of the present invention, the cylinder cap of hydraulic cylinder is provided with pipeline opening, is connected with one group of pipeline of external control pipeline.
The beneficial effect that the present invention adopts is: the present invention possesses following advantage: 1, shaft-free coupling between flap and valve body, after turn on pump, flap is opened rapidly under the thrust of medium and the pulling force effect of piston rod, flap also can reach maximum opening angle, realization is opened and in valve rear valve body, is realized full-bore circulation, loss of flood peak coefficient is close to zero, and energy consumption is extremely low, and energy-saving effect is obvious. 2, valve body is provided with emptier, ball float is the gas in emptying pipe effectively, and the knee-action of ball float can be realized the UNICOM of two group interfaces and block, the turnover of the medium in the upper and lower cylinder body of control piston cylinder, and then reach the keying of controlling flap, realize pump valve interlock. 3, between flap and piston rod, adopt eccentric connection, flap be provided with eccentric block, flap can be under the medium active force of gravity in the time closing automatic capturing, realize pass valve smoothly. 4, the top of valve body is provided with limited block, and after flap is opened, the eccentric block on flap contacts with valve body limited block, can prevent that flap from closing position, therefore the eccentric block on flap has positioning function limited location function again.
Brief description of the drawings
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is emptier schematic diagram of the present invention.
Shown in figure: 1 valve body, 2 flaps, 3 bearing pins, 4 piston rods, 5 pistons, 6 hydraulic cylinders, 7 cylinder caps, 8 reversal valves, 9 reversing valve cores, 10 emptying valve bodies, 11 ball floats, 12 spherical sealed circles, 13 springs, 14 commutation valve gaps, 15 sealing rings, 16 pipeline one interfaces, 17 pipeline two interfaces, 18 pipelines one, 19 pipeline two, 21 flap eccentric blocks, 31 intake antrums, 32 water chambers, 33 valve body limited blocks, 61 upper cylinder bodies, 62 lower cylinder bodies, 141 exhaust outlets.
Detailed description of the invention
Below in conjunction with Fig. 1 and Fig. 2, the present invention is described further.
As shown in the figure, energy-saving pump-controlling valve, comprises valve body 1 and flap 2, and valve body 1 is divided into intake antrum 31 and water chamber 32 by described flap 2, also includes flap control device, emptier and external control pipeline; Flap control device connects flap 2 and is positioned at the top of water chamber 32, described flap control device comprises hydraulic cylinder 6, piston 5 and piston rod 4, described piston rod 4 is connected with flap 2 by bearing pin 3, and described piston 5 is positioned at hydraulic cylinder 6 and hydraulic cylinder is divided into upper cylinder body 61 and lower cylinder body 62; Emptier is positioned at the top of intake antrum, described emptier comprises emptying valve body 10, described emptying valve body 10 is fixed in the top of the intake antrum 31 of valve body, the affixed commutation valve gap 14 of described emptying valve body 10, described commutation valve gap 14 is provided with exhaust outlet 141 and two group interfaces, in the cavity that described emptying valve body 10 and commutation valve gap 14 form, be provided with ball float 11, the affixed reversing valve core 9 of described ball float 11, described reversing valve core 9 is suitable with two group interfaces of commutation valve gap 14, between described ball float 11 and commutation valve gap 14, is provided with spring 13; External control pipeline comprises that two groups of pipelines are connected with two group interfaces of commutation valve gap 14 respectively, and wherein one group is connecting the lower cylinder body 62 of intake antrum 31 and piston, and another group is connecting water chamber 32 and piston upper cylinder body 61.
The valve gap of the pump-controlling valve of this structure is substituted by hydraulic cylinder, and the profile of hydraulic cylinder is made valve gap type.
Can be automatically effective for the switch of guaranteeing flap of the present invention, further realize the interlock of pump valve and do not lose energy consumption, on described flap 2, be connected with flap eccentric block 21, on described valve body 1, be connected with the valve body limited block 33 suitable with flap eccentric block 21.
For guaranteeing effective work of emptier of the present invention, improve the sealing of emptier, in the inner chamber of emptier, be also provided with spherical sealed circle 12, described spherical sealed circle 12 is between emptying valve body 10 and commutation valve gap 14 and suitable with ball float.
For further improving working effect of the present invention, the medium circulation in control pipeline and then the work of control hydraulic cylinder, be respectively equipped with check-valves 8 on two groups of pipelines.
For further improving operating efficiency of the present invention, guarantee the normal work of pipeline, between each interface of commutation valve gap 14, be provided with sealing ring 15.
For further improving working effect of the present invention, guarantee the best results of external control pipeline, the cylinder cap 7 of hydraulic cylinder is provided with pipeline opening, is connected with one group of pipeline of external control pipeline.
The present invention includes valve body 1, in valve body 1, there is flap 2, flap 2 is connected with piston rod 4 by bearing pin 3, piston rod 4 pistons 5 are fixing, and in the time of valve closing, flap 2 is by interior valve body 1 intake antrum 31 and the water chamber 32 of cutting off into, be placed in valve body 1 top with the valve gap of piston cylinder, cylinder cap 7 is put piston cylinder top, and piston 5 is placed in the valve gap with piston cylinder, and piston cylinder is divided into hydraulic cylinder upper cylinder body 61 and hydraulic cylinder lower cylinder body 62. The intake antrum of valve body 1 is provided with emptier, emptier is fixed on valve body 1 by emptying valve body 10, in emptying valve body 10, be provided with ball float 11, on ball float 11, connect reversing valve core, between Qi Ge UNICOM mouth, be provided with sealing ring 15, ball float 11 is provided with spring 13, and spring 13 tops contact with commutation valve gap 14, and spherical sealed circle 12 is arranged between emptying valve body 10 and commutation valve gap 14.
Commutation valve gap 14 is provided with exhaust outlet 141 and two group interfaces, one group is pipeline one interface 16, other one group is pipeline two interfaces 17, two group interfaces are separate, pipeline one interface 16 is controlled in the decline of ball float 11 and the meeting of rising, switching on and off of pipeline two interfaces 17, external control pipeline divides two groups of pipelines 1 and pipeline 2 19, pipeline 1 has two paths, the two paths of hydraulic cylinder upper cylinder body 61 parallel pipelines 1, passage is once pipeline one interface 16 and water chamber 32 UNICOMs on commutation valve gap 14, passage two is through check-valves 8 and water chamber 32 UNICOMs, pipeline 2 19 has two paths, the two paths of lower cylinder body 62 parallel pipelines 2 19 of hydraulic cylinder, and wherein pipeline two interfaces 17 and intake antrum 31 UNICOMs of a-road-through road on commutation valve gap 14, another paths is through check-valves 8 and intake antrum 31 UNICOMs.
The present invention is following work:
When pump is not opened, flap 2 is closed, and the reflux medium in pipeline is full of water chamber 32, and the upper cylinder body 61 that reflux medium enters hydraulic cylinder through check-valves 8 is full of cylinder body. The ball float 11 of emptier declines under the active force of deadweight and spring 13, and ball float 11 and spherical sealed circle 12 are thrown off, and forms exhaust passage, and pipeline one interface 16 and pipeline two interfaces 17 disconnect.
When turn on pump, in intake antrum 31, there is air, pipeline one interface 16 and pipeline two interfaces 17 disconnect, medium in the upper cylinder body 61 of hydraulic cylinder cannot be discharged, form an airtight cavity, piston 5 cannot drive piston rod 4 up, and flap 2 cannot be opened, flap 2 is subject to the pressure of water chamber 32 media simultaneously, makes flap 2 be close to the sealing surface of valve body 1.
When intake antrum 31 air are slowly discharged from exhaust outlet 141, along with the rising of water level, the interior air of intake antrum 31 is discharged completely, ball float 11 is under buoyancy of water effect, overcome deadweight and elastic force fast rise, ball float 11 forms sealing with spherical sealed circle 12, and the reversing valve core on ball float 11 rises, pipeline one interface 16 and pipeline two interface 17 UNICOMs, the medium in intake antrum 31 is entered in the lower cylinder body 62 of hydraulic cylinder by the a-road-through road of pipeline two through pipeline two interfaces 17. Meanwhile, check-valves 8 is because two ends medium all comes from valve intake antrum 31, and valve pressure at two ends equates, is now failure to actuate. Enter the medium of the lower cylinder body 62 of hydraulic cylinder, produce thrust, promote piston 5 and piston rod 4 up, medium in the upper cylinder body 61 of hydraulic cylinder, be back to outlet plenum 32 through pipeline one interface 16 by the a-road-through road of pipeline 1, flap 2, under the pulling force of medium active force and piston rod 4 is done, is opened fast.
When valve is normally opened, flap 2 can be opened completely, and valve body 1 inner chamber is realized full-bore, and now loss of flood peak coefficient is close to zero. Eccentric block 21 on flap 2 contacts with the limited block 33 in valve body 1, prevents that flap 2 from closing position.
When termination of pumping, 31 moments of intake antrum lose pressure, ball float 11 is under deadweight and elastic force effect, decline rapidly, ball float 11 and spherical sealed circle 12 are thrown off, form inlet channel, pipeline one interface 16 and pipeline two interfaces 17 disconnect, recirculation water in water chamber 32, entered the upper cylinder body 61 of hydraulic cylinder by the a-road-through road of pipeline one through check-valves 8, medium in the lower cylinder body 62 of hydraulic cylinder is in check-valves 8 is back to intake antrum 31, and medium active force promotion piston 5 and the piston rod 4 of the upper cylinder body 61 of hydraulic cylinder are descending, close flap 2. Because flap 2 left sides are provided with eccentric block 21, and flap 2 adopts eccentric connection with piston rod 4, left side deadweight and the arm of force of its flap 2 are all greater than right side deadweight and the arm of force, and its flap 2 can fall automatically, and flap 2 is realized and being closed under piston rod 4 and reflux medium active force.
The present invention possesses following advantage: 1, shaft-free coupling between flap and valve body, after turn on pump, flap is opened rapidly under the thrust of medium and the pulling force effect of piston rod, flap also can reach maximum opening angle, realization is opened and in valve rear valve body, is realized full-bore circulation, loss of flood peak coefficient is close to zero, and energy consumption is extremely low, and energy-saving effect is obvious. 2, valve body is provided with emptier, ball float is the gas in emptying pipe effectively, and the knee-action of ball float can be realized the UNICOM of two group interfaces and block, the turnover of the medium in the upper and lower cylinder body of control piston cylinder, and then reach the keying of controlling flap, realize pump valve interlock. 3, between flap and piston rod, adopt eccentric connection, flap be provided with eccentric block, flap can be under the medium active force of gravity in the time closing automatic capturing, realize pass valve smoothly. 4, the top of valve body is provided with limited block, and after flap is opened, the eccentric block on flap contacts with valve body limited block, can prevent that flap from closing position, therefore the eccentric block on flap has positioning function limited location function again.
Those skilled in the art should know; protection scheme of the present invention is not limited only to the above embodiments; can also on the basis of above-described embodiment, carry out various permutation and combination and conversion; under the prerequisite without prejudice to spirit of the present invention, the various conversion that the present invention is carried out all drop in protection scope of the present invention.
Claims (6)
1. energy-saving pump-controlling valve, comprises valve body (1) and flap (2), and valve body (1) is divided into intake antrum (31) and water chamber (32) by described flap (2), it is characterized in that also including flap control device, emptier and external control pipeline;
Flap control device connects flap (2) and is positioned at the top of water chamber (32), described flap control device comprises hydraulic cylinder (6), piston (5) and piston rod (4), described piston rod (4) is connected with flap (2) by bearing pin (3), and described piston (5) is positioned at hydraulic cylinder (6) and hydraulic cylinder is divided into upper cylinder body (61) and lower cylinder body (62);
Emptier is positioned at the top of intake antrum, described emptier comprises emptying valve body (10), described emptying valve body (10) is fixed in the top of the intake antrum (31) of valve body, the affixed commutation valve gap of described emptying valve body (10) (14), described commutation valve gap (14) is provided with exhaust outlet (141) and two group interfaces, in the cavity that described emptying valve body (10) and commutation valve gap (14) form, be provided with ball float (11), the affixed reversing valve core of described ball float (11) (9), described reversing valve core (9) is suitable with two group interfaces of commutation valve gap (14), between described ball float (11) and commutation valve gap (14), be provided with spring (13),
External control pipeline comprises that two groups of pipelines are connected with two group interfaces of commutation valve gap (14) respectively, and wherein one group is connecting the lower cylinder body (62) of intake antrum (31) and piston, and another group is connecting water chamber (32) and piston upper cylinder body (61).
2. energy-saving pump-controlling valve according to claim 1, is characterized in that being connected with flap eccentric block (21) on described flap (2), is connected with the valve body limited block (33) suitable with flap eccentric block (21) on described valve body (1).
3. energy-saving pump-controlling valve according to claim 1 and 2, it is characterized in that being also provided with spherical sealed circle (12) in the inner chamber of described emptier, described spherical sealed circle (12) is positioned between emptying valve body (10) and commutation valve gap (14) and is suitable with ball float.
4. energy-saving pump-controlling valve according to claim 1 and 2, is characterized in that being respectively equipped with check-valves (8) on described two groups of pipelines.
5. energy-saving pump-controlling valve according to claim 3, is characterized in that being provided with sealing ring (15) between each interface of described commutation valve gap (14).
6. energy-saving pump-controlling valve according to claim 4, is characterized in that the cylinder cap (7) of hydraulic cylinder is provided with pipeline opening, is connected with one group of pipeline of external control pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510899850.4A CN105587922B (en) | 2015-12-09 | 2015-12-09 | Energy-saving pump-controlling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510899850.4A CN105587922B (en) | 2015-12-09 | 2015-12-09 | Energy-saving pump-controlling valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105587922A true CN105587922A (en) | 2016-05-18 |
| CN105587922B CN105587922B (en) | 2018-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510899850.4A Active CN105587922B (en) | 2015-12-09 | 2015-12-09 | Energy-saving pump-controlling valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105587922B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108328943A (en) * | 2018-02-24 | 2018-07-27 | 重庆市顺华安全玻璃有限公司 | Flame resistant glass infuser device |
| CN114674674A (en) * | 2022-05-26 | 2022-06-28 | 四川航天拓达玄武岩纤维开发有限公司 | Linear measuring device and measuring method for basalt fiber pipe quality inspection |
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| JP2000085404A (en) * | 1998-09-10 | 2000-03-28 | Akebono Brake Res & Dev Center Ltd | Piston pump |
| CN2390059Y (en) * | 1999-07-28 | 2000-08-02 | 杨文华 | Hydrautic butterfly valve |
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| CN204573234U (en) * | 2015-04-20 | 2015-08-19 | 宁波埃美柯铜阀门有限公司 | Piston type hydraulic control valve |
| CN105020404A (en) * | 2015-06-30 | 2015-11-04 | 志远科技有限公司 | Hydraulic control valve |
-
2015
- 2015-12-09 CN CN201510899850.4A patent/CN105587922B/en active Active
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| JP2000085404A (en) * | 1998-09-10 | 2000-03-28 | Akebono Brake Res & Dev Center Ltd | Piston pump |
| CN2390059Y (en) * | 1999-07-28 | 2000-08-02 | 杨文华 | Hydrautic butterfly valve |
| CN2423461Y (en) * | 2000-05-17 | 2001-03-14 | 上海正丰阀门制造有限公司 | Piston-type buffer close check valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108328943A (en) * | 2018-02-24 | 2018-07-27 | 重庆市顺华安全玻璃有限公司 | Flame resistant glass infuser device |
| CN108328943B (en) * | 2018-02-24 | 2020-11-13 | 重庆市顺华安全玻璃有限公司 | Fireproof glass soaking device |
| CN114674674A (en) * | 2022-05-26 | 2022-06-28 | 四川航天拓达玄武岩纤维开发有限公司 | Linear measuring device and measuring method for basalt fiber pipe quality inspection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105587922B (en) | 2018-05-15 |
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Denomination of invention: Energy saving pump control valve Effective date of registration: 20230927 Granted publication date: 20180515 Pledgee: China Construction Bank Corporation Tongling Jianlong Branch Pledgor: ANHUI TONGDU FLOW TECHNOLOGY Co.,Ltd. Registration number: Y2023980059367 |
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Granted publication date: 20180515 Pledgee: China Construction Bank Corporation Tongling Jianlong Branch Pledgor: ANHUI TONGDU FLOW TECHNOLOGY Co.,Ltd. Registration number: Y2023980059367 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |