CN105587922B - Energy-saving pump-controlling valve - Google Patents
Energy-saving pump-controlling valve Download PDFInfo
- Publication number
- CN105587922B CN105587922B CN201510899850.4A CN201510899850A CN105587922B CN 105587922 B CN105587922 B CN 105587922B CN 201510899850 A CN201510899850 A CN 201510899850A CN 105587922 B CN105587922 B CN 105587922B
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- flap
- pipeline
- valve
- valve body
- interface
- Prior art date
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- 238000007667 floating Methods 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 238000010992 reflux Methods 0.000 description 3
- 238000006243 chemical reaction Methods 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
- 206010003671 Atrioventricular Block Diseases 0.000 description 1
- 208000010271 Heart Block Diseases 0.000 description 1
- 241000009298 Trigla lyra Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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 energy-saving pump-controlling valve, including valve body and flap, valve body is divided into intake antrum and water chamber by the flap, has further included flap control device, emptier and exterior control pipeline；Flap control device connects flap and positioned at the top of water chamber.The present invention possesses following advantage：1st, 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 can simultaneously reach maximum opening angle, realize and realize that full-bore circulates in valve opening rear valve body, waterhead fall is close to zero, energy consumption is extremely low, and energy-saving effect is obvious.2nd, valve body is equipped with emptier, floating ball can effectively empty the gas in pipeline, and the up and down action of floating ball can realize the unicom of two group interfaces and block, the disengaging of the medium in the upper and lower cylinder body of control piston cylinder, and then the keying of control flap, realize that pump valve links.
Description
Technical field
The present invention relates to valve field, more particularly to a kind of energy-saving pump-controlling valve being installed on after centrifugal pump.
Background technology
After pump-controlling valve is installed on centrifugal pump, it can link with water pump.The air in drained pipeline can be reached after turn on pump, formed true
Valve opening again after sky；The fast quick-closing valve of termination of pumping energy, blocks the anti-backflow damage water pump of medium.At present, after in the market is installed on centrifugal pump
Valve have a variety of valves such as check-valves, hydraulic butterfly valve, multipotency work(control valve for water pump, but in practical application, the equal nothing of above valve
Method accomplishes after the air in drained pipeline valve opening again, and each turn on pump need to first vacuumize valve opening again, while be unable to reach after valve opening
Full-bore, the loss of flood peak is big, high energy consumption.
The content of the invention
Present invention aim to address can not be formed after vacuum, valve opening realize entirely before pump-controlling valve valve opening in the prior art
A kind of the problem of latus rectum, there is provided energy-saving pump-controlling valve that can realize pump valve linkage.
The technical solution adopted by the present invention is：Valve body is divided into by energy-saving pump-controlling valve, including valve body and flap, the flap
Intake antrum and water chamber, have further included flap control device, emptier and exterior control pipeline；Flap control device connection valve
Valve simultaneously includes hydraulic cylinder, piston and piston rod positioned at the top of water chamber, the flap control device, and the piston rod passes through pin
Axis is connected with flap, and the piston is located in hydraulic cylinder and hydraulic cylinder is divided into upper cylinder body and lower cylinder body；Emptier be located at into
The top of water cavity, the emptier include emptying valve body, and the emptying valve body is fixed in the top of the intake antrum of valve body, described
The affixed commutation valve deck of valve body is emptied, the reversal valve is covered equipped with exhaust outlet and two group interfaces, the emptying valve body and reversal valve
Cover in the cavity formed and be equipped with floating ball, the affixed reversing valve core of floating ball, two group interfaces of the reversing valve core and commutation valve deck
It is adapted, the floating ball and commutation valve cover chamber are provided with spring；Exterior control pipeline includes pipeline one and pipeline two, and pipeline one has
Two paths, the two paths of upper cylinder body parallel pipeline one, wherein one interface of pipeline that passage is covered through reversal valve all the way is with going out
Water cavity unicom, another paths are through check-valves and water chamber unicom；Pipeline two has a two paths, and the two of lower cylinder body parallel pipeline two
Paths, wherein two interface of pipeline that passage is covered through reversal valve all the way and intake antrum unicom, another paths through check-valves with
Intake antrum unicom；When floating ball floats, reversing valve core rises, two orifice of one interface of pipeline and pipeline, when floating ball declines,
One interface of pipeline and two interface of pipeline disconnect.
As a further improvement on the present invention, flap eccentric block is connected with the flap, be connected with the valve body with
The valve body limited block that flap eccentric block is adapted.
As a further improvement on the present invention, the interior intracavitary of the emptier is additionally provided with spherical sealed circle, described spherical
Sealing ring is adapted between emptying valve body and commutation valve deck and with floating ball.
Further as the present invention is improved, and sealing ring is equipped between each interface of the commutation valve deck.
Further as the present invention is improved, and the cylinder cap of hydraulic cylinder is equipped with pipeline opening, the pipe with exterior control pipeline
Road one is connected.
The beneficial effect that the present invention uses is：The present invention possesses following advantage：1st, shaft-free coupling between flap and valve body, is opened
After pump, flap is opened rapidly under the thrust of medium and the pulling force effect of piston rod, and flap can simultaneously reach maximum opening angle, real
Realize that full-bore circulates in existing valve opening rear valve body, waterhead fall is close to zero, and energy consumption is extremely low, and energy-saving effect is obvious.2nd, valve
Body is equipped with emptier, and floating ball can effectively empty the gas in pipeline, and the up and down action of floating ball can realize the connection of two group interfaces
Lead to and block, the disengaging of the medium in the upper and lower cylinder body of control piston cylinder, and then control the keying of flap, realize that pump valve joins
It is dynamic.3rd, coupled between flap and piston rod using bias, flap is equipped with eccentric block, and flap when closed can be in Jie of gravity
Automatic capturing under matter active force, realizes and smoothly closes valve.4th, the top of valve body is equipped with limited block, inclined on flap after flap is opened
Heart block is contacted with valve body limited block, can prevent flap from closing position, therefore the eccentric block on flap has positioning function to have spacing work(again
Energy.
Brief description of the drawings
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is the emptier schematic diagram of the present invention.
Shown in figure：1 valve body, 2 flaps, 3 axis pins, 4 piston rods, 5 pistons, 6 hydraulic cylinders, 7 cylinder caps, 8 non-returns
Valve, 9 reversing valve cores, 10 emptying valve bodies, 11 floating balls, 12 spherical sealed circles, 13 springs, 14 commutation valve decks, 15 sealings
Circle, 16 pipeline, one interface, 17 pipeline, two interface, 18 pipelines one, 19 pipelines two, 21 flap eccentric blocks, 31 intake antrums, 32
Water chamber, 33 valve body limited blocks, 61 upper cylinder bodies, 62 lower cylinder bodies, 141 exhaust outlets.
Embodiment
With reference to Fig. 1 and Fig. 2, the present invention is described further.
As shown in the figure, energy-saving pump-controlling valve, including valve body 1 and flap 2, the flap 2 divide valve body 1 for 31 He of intake antrum
Water chamber 32, has further included flap control device, emptier and exterior control pipeline；Flap control device connection flap 2 is simultaneously
Positioned at the top of water chamber 32, the flap control device includes hydraulic cylinder 6, piston 5 and piston rod 4, and the piston rod 4 passes through
Axis pin 3 is connected with flap 2, and the piston 5 is located in hydraulic cylinder 6 and hydraulic cylinder is divided into upper cylinder body 61 and lower cylinder body 62；Emptying
Device is located at the top of intake antrum, and the emptier includes emptying valve body 10, the emptying valve body 10 be fixed in valve body into
The top of water cavity 31, the affixed commutation valve deck 14 of emptying valve body 10, the commutation valve deck 14 are equipped with exhaust outlet 141 and two groups
Floating ball 11, the 11 affixed reversing valve core of floating ball are equipped with interface, the emptying valve body 10 and the cavity that valve deck 14 is formed that commutates
9, the reversing valve core 9 is adapted with two group interfaces of the valve deck 14 that commutates, and bullet is provided between the floating ball 11 and commutation valve deck 14
Spring 13；Exterior control pipeline includes pipeline 1 and pipeline 2 19, and pipeline 1 has two paths, 61 parallel pipeline one of upper cylinder body
18 two paths, wherein passage leads to through one interface 16 of pipeline on commutation valve deck 14 and 32 unicom of water chamber, another way all the way
Road is through check-valves 8 and 32 unicom of water chamber；Pipeline 2 19 has a two paths, the two paths of 62 parallel pipeline 2 19 of lower cylinder body,
Wherein all the way passage through two interface 17 of pipeline and 31 unicom of intake antrum on valve deck 14 of commutating, another paths through check-valves 8 with
31 unicom of intake antrum, when floating ball 11 floats, reversing valve core rises, and one interface 16 of pipeline is connected with two interface 17 of pipeline, when floating
When ball declines, one interface 16 of pipeline and two interface 17 of pipeline disconnect.
The valve deck of the pump-controlling valve of this structure is substituted by hydraulic cylinder, and hydraulic cylinder is contoured to valve deck type.
To ensure that the switch of the flap of the present invention automatically effectively, can further realize the linkage of pump valve without losing energy
Consume, be connected with flap eccentric block 21 on the flap 2, the valve body being adapted with flap eccentric block 21 is connected with the valve body 1
Limited block 33.
To ensure effective work of the emptier of the present invention, the leakproofness of emptier, the inner cavity of emptier are improved
Inside be additionally provided with spherical sealed circle 12, the spherical sealed circle 12 between emptying valve body 10 and commutation valve deck 14 and with floating ball phase
Adaptation.
For further improve the present invention work efficiency, it is ensured that the normal work of pipeline, commutate valve deck 14 each interface it
Between be equipped with sealing ring 15.
To further improve the working effect of the present invention, it is ensured that the best results of exterior control pipeline, the cylinder cap 7 of hydraulic cylinder
Pipeline opening is equipped with, is connected with one group of pipeline of exterior control pipeline.
The present invention includes valve body 1, has flap 2 in valve body 1, flap 2 is connected by axis pin 3 with piston rod 4, and piston rod 4 is lived
Plug 5 is fixed, and when the valve is closed, flap 2 by partition in valve body 1, into intake antrum 31 and water chamber 32, put by the valve deck with piston cylinder
In the top of valve body 1, cylinder cap 7 is put at the top of piston cylinder, and piston 5 is placed in the valve deck 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 equipped with emptier, and emptier is fixed on by emptying valve body 10
On valve body 1, floating ball 11 is equipped with emptying valve body 10, reversing valve core is connected on floating ball 11, sealing ring 1 is equipped between its each unicom mouth
5, floating ball 11 is equipped with spring 13, and the top of spring 13 is contacted with commutation valve deck 14, and spherical sealed circle 12 is installed on emptying valve body 10
Between commutation valve deck 14.
Commutation valve deck 14 is equipped with 141 and two group interface of exhaust outlet, and one group is one interface 16 of pipeline, and another set is pipeline
Two interfaces 17, two group interfaces are separate, the decline of floating ball 11 and rise can control pipeline one interface 16, two interface 17 of pipeline
Switch on and off, exterior control piper is divided to two groups of pipelines 1 and pipeline 2 19, and pipeline 1 has two paths, hydraulic cylinder upper cylinder half
The two paths of 61 parallel pipeline 1 of body, passage is once through one interface 16 of pipeline and the water chamber 32 on valve deck 14 of commutating
Logical, passage two is through check-valves 8 and 32 unicom of water chamber；Pipeline 2 19 has two paths, 62 parallel pipeline of lower cylinder body of hydraulic cylinder
2 19 two paths, wherein passage is through two interface 17 of pipeline and 31 unicom of intake antrum on valve deck 14 of commutating, another way all the way
Passage is through check-valves 8 and 31 unicom of intake antrum.
The present invention works as follows：
Pump when not opening, close by flap 2, and the reflux medium in pipeline is full of water chamber 32, reflux medium through check-valves 8 into
The upper cylinder body 61 for entering hydraulic cylinder is full of cylinder body.The floating ball 11 of emptier declines under the active force with spring 13 of conducting oneself with dignity, floating ball 1
1 and spherical sealed circle 12 disengage, formed exhaust passage, one interface 16 of pipeline and two interface 17 of pipeline disconnect.
During turn on pump, there is air in intake antrum 31, one interface 16 of pipeline and two interface 17 of pipeline disconnect, the upper cylinder body of hydraulic cylinder
Medium in 61 can not discharge, and form a closed cavity, and piston 5 can not drive 4 uplink of piston rod, and flap 2 can not be opened,
Flap 2 by the pressure of 32 medium of water chamber, makes flap 2 be close to the sealing surface of valve body 1 at the same time.
When 31 air of intake antrum is slowly discharged from exhaust outlet 141, with the rising of water level, air is arranged completely in intake antrum 31
Go out, floating ball 11 overcomes dead weight and elastic force rapid increase under the buoyancy of water, and floating ball 11 forms close with spherical sealed circle 12
Seal, the reversing valve core on floating ball 11 rises, 17 unicom of one interface 16 of pipeline and two interface of pipeline, and the medium in intake antrum 31 is through pipe
Two interface 17 of road is entered in the lower cylinder body 62 of hydraulic cylinder by the passage all the way of pipeline two.Meanwhile check-valves 8 is due to both ends medium
Both from valve intake antrum 31, valve pressure at two ends is equal, is failure to actuate at this time.Into the medium of the lower cylinder body 62 of hydraulic cylinder, produce
Thrust, promotes 4 uplink of piston 5 and piston rod, the medium in the upper cylinder body 61 of hydraulic cylinder, through one interface 16 of pipeline by pipeline 1
Passage all the way be back to outlet plenum 32, flap 2 is quick to open under the pulling force effect of medium active force and piston rod 4.
When valve is normally-open, flap 2 can fully open, and full-bore is realized in 1 inner cavity of valve body, and waterhead fall approaches at this time
It is zero.Eccentric block 21 on flap 2 is contacted with the limited block 33 in valve body 1, prevents flap 2 from closing position.
During termination of pumping, 31 moment of intake antrum loses pressure, and floating ball 11 is being conducted oneself with dignity with elastic force effect, declined rapidly, floating ball 11
Disengaged with spherical sealed circle 12, form inlet channel, one interface 16 of pipeline and two interface 17 of pipeline disconnect, returning in water chamber 32
Flowing water, the upper cylinder body 61 of hydraulic cylinder, the medium in the lower cylinder body 62 of hydraulic cylinder are entered through check-valves 8 by the passage all the way of pipeline one
It is back to through check-valves 8 in intake antrum 31, the medium active force of the upper cylinder body 61 of hydraulic cylinder promotes 4 downlink of piston 5 and piston rod,
Close flap 2.Since the left side of flap 2 is equipped with eccentric block 21, and flap 2 is connected with piston rod 4 using bias, a left side for its flap 2
Side is conducted oneself with dignity and the arm of force is both greater than right side dead weight and the arm of force, its flap 2 and can fall automatically, and flap 2 is made in piston rod 4 and reflux medium
Firmly lower realize is closed.
The present invention possesses following advantage：1st, shaft-free coupling between flap and valve body, after turn on pump, flap medium thrust and
Opened rapidly under the pulling force effect of piston rod, flap can simultaneously reach maximum opening angle, realize in valve opening rear valve body and realize all-pass
Footpath is circulated, and waterhead fall is close to zero, and energy consumption is extremely low, and energy-saving effect is obvious.2nd, valve body is equipped with emptier, floating ball energy
Gas effectively in emptying pipeline, the up and down action of floating ball can realize the unicom of two group interfaces and block that control piston cylinder is upper and lower
The disengaging of medium in cylinder body, and then the keying of flap is controlled, realize that pump valve links.3rd, used between flap and piston rod
Bias connection, flap are equipped with eccentric block, flap when closed can under the medium active force of gravity automatic capturing, realize suitable
Profit closes valve.4th, the top of valve body is equipped with limited block, and after flap is opened, the eccentric block on flap is contacted with valve body limited block, can be prevented
Only flap closed position, therefore the eccentric block on flap has positioning function to have limit function again.
Those skilled in the art, can also be it is to be understood that the protection scheme of the present invention is not limited only to the above embodiments
Various permutation and combination and conversion are carried out on the basis of above-described embodiment, on the premise of without prejudice to spirit of the invention, to the present invention
The various conversion carried out are all fallen within protection scope of the present invention.
Claims (5)
1. energy-saving pump-controlling valve, including valve body（1）And flap（2）, the flap（2）By valve body（1）It is divided into intake antrum（31）With
Water chamber（32）, it is characterized in that having further included flap control device, emptier and exterior control pipeline；
Flap control device connects flap（2）And it is located at water chamber（32）Top, the flap control device includes hydraulic cylinder
（6）, piston（5）And piston rod（4）, the piston rod（4）Pass through axis pin（3）With flap（2）It is connected, the piston（5）It is located at
Hydraulic cylinder（6）It is interior and hydraulic cylinder is divided into upper cylinder body（61）And lower cylinder body（62）；
Emptier is located at the top of intake antrum, and the emptier includes emptying valve body（10）, the emptying valve body（10）Gu
It is connected to the intake antrum of valve body（31）Top, the emptying valve body（10）Affixed commutation valve deck（14）, the commutation valve deck（14）
It is equipped with exhaust outlet（141）With two group interfaces, the emptying valve body（10）With commutation valve deck（14）It is equipped with the cavity of composition floating
Ball（11）, the floating ball（11）Affixed reversing valve core（9）, the reversing valve core（9）With the valve deck that commutates（14）Two group interface phases
Adaptation, the floating ball（11）With commutation valve deck（14）Between be provided with spring（13）；
Exterior control pipeline includes pipeline one（18）With pipeline two（19）, pipeline one（18）There are two paths, upper cylinder body（61）And
Union road one（18）Two paths, wherein all the way passage through commutate valve deck（14）On one interface of pipeline（16）With water chamber
（32）Unicom, another paths are through check-valves（8）With water chamber（32）Unicom；Pipeline two（19）There are two paths, lower cylinder body
（62）Parallel pipeline two（19）Two paths, wherein all the way passage through commutate valve deck（14）On two interface of pipeline（17）With into
Water cavity（31）Unicom, another paths are through check-valves（8）With intake antrum（31）Unicom；Work as floating ball（11）During floating, reversing valve core
Rise, one interface of pipeline（16）With two interface of pipeline（17）Connection, when floating ball declines, one interface of pipeline（16）Connect with pipeline two
Mouthful（17）Disconnect.
2. energy-saving pump-controlling valve according to claim 1, it is characterized in that the flap（2）On be connected with flap eccentric block
（21）, the valve body（1）On be connected with and flap eccentric block（21）The valve body limited block being adapted（33）.
3. energy-saving pump-controlling valve according to claim 1 or 2, it is characterized in that the interior intracavitary of the emptier is additionally provided with ball
Shape sealing ring（12）, the spherical sealed circle（12）Positioned at emptying valve body（10）With commutation valve deck（14）Between and mutually fit with floating ball
Match somebody with somebody.
4. energy-saving pump-controlling valve according to claim 3, it is characterized in that the commutation valve deck（14）Each interface between set
There is sealing ring（15）.
5. energy-saving pump-controlling valve according to claim 4, it is characterized in that the cylinder cap of hydraulic cylinder（7）Pipeline opening is equipped with, with
The pipeline one of exterior control pipeline（18）It is connected.
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 CN105587922A (en) | 2016-05-18 |
| CN105587922B true CN105587922B (en) | 2018-05-15 |
Family
ID=55927719
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) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114674674B (en) * | 2022-05-26 | 2022-09-06 | 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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|---|---|---|---|---|
| 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 |
| CN201318488Y (en) * | 2008-11-27 | 2009-09-30 | 上海明珠阀门制造有限公司 | Hydraulic control valve |
| CN201521428U (en) * | 2009-11-13 | 2010-07-07 | 佛山市南海永兴阀门制造有限公司 | Energy-saving piston balanced pump control valve |
| CN202252165U (en) * | 2011-10-10 | 2012-05-30 | 铁岭方众阀门有限公司 | Swing micro-resistance slow closing check valve |
| CN204327528U (en) * | 2014-12-08 | 2015-05-13 | 山东钢铁股份有限公司 | A kind of control valve for water pump |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000085404A (en) * | 1998-09-10 | 2000-03-28 | Akebono Brake Res & Dev Center Ltd | Piston pump |
| JP4026799B2 (en) * | 2000-06-27 | 2007-12-26 | 能美防災株式会社 | On-off valve device for fire fighting equipment |
-
2015
- 2015-12-09 CN CN201510899850.4A patent/CN105587922B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN201318488Y (en) * | 2008-11-27 | 2009-09-30 | 上海明珠阀门制造有限公司 | Hydraulic control valve |
| CN201521428U (en) * | 2009-11-13 | 2010-07-07 | 佛山市南海永兴阀门制造有限公司 | Energy-saving piston balanced pump control valve |
| CN202252165U (en) * | 2011-10-10 | 2012-05-30 | 铁岭方众阀门有限公司 | Swing micro-resistance slow closing check valve |
| CN204327528U (en) * | 2014-12-08 | 2015-05-13 | 山东钢铁股份有限公司 | A kind of control valve for water pump |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105587922A (en) | 2016-05-18 |
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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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