CN105757271B - A kind of novel flow rate finely tunes gate valve - Google Patents
A kind of novel flow rate finely tunes gate valve Download PDFInfo
- Publication number
- CN105757271B CN105757271B CN201610307302.2A CN201610307302A CN105757271B CN 105757271 B CN105757271 B CN 105757271B CN 201610307302 A CN201610307302 A CN 201610307302A CN 105757271 B CN105757271 B CN 105757271B
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- China
- Prior art keywords
- flashboard
- valve
- adjustment component
- sealing ring
- valve rod
- Prior art date
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- 238000007789 sealing Methods 0.000 claims abstract description 45
- 239000012530 fluid Substances 0.000 claims abstract description 15
- 230000000694 effects Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 230000033228 biological regulation Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 238000009776 industrial production Methods 0.000 abstract description 2
- 230000033001 locomotion Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0281—Guillotine or blade-type valves, e.g. no passage through the valve member
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/029—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with two or more gates
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/32—Means for additional adjustment of the rate of flow
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The invention discloses a kind of novel flow rates to finely tune gate valve.Including valve deck, the first adjustment component and second adjustment component；Valve deck is connected to valve body top, it is equipped in valve body and adjusts the first adjustment component of uninterrupted and second adjustment component, middle part of the first adjustment assembly set loaded on valve deck and valve body, second adjustment assembly set is loaded in the first adjustment component, sealing ring is equipped between the first adjustment component and valve body, sealing ring is equipped between the first adjustment component and second adjustment component, valve port size of the adjustment in body cavity is moved up and down by the first adjustment component and second adjustment component.The present invention by two adjustment components be mounted with micromatic setting, can to flow through valve fluid flow carry out trace regulation, eliminate gate valve adjust flow in process variation greatly, can not accurately adjust the drawbacks of.The present apparatus can be advantageously applied in industrial production.
Description
Technical field
It, can be to flowing through the fluid of valve more particularly, to a kind of novel fine tuning gate valve the present invention relates to a kind of gate valve
Flow carries out micro compensation.
Background technology
Gate valve is not only simple in structure, good airproof performance, and fluid resistance is small, driving moment needed for keying is smaller, operation letter
Just the advantages that, easily realizing fast opening and closing, can use in medium flows looped network pipeline to two directions, obtain in recent years fast
The development of speed.
The use of gate valve is very extensive, and the adjusting of fluid flow can be achieved by the up and down motion of flashboard, using kind and
Quantity is still constantly expanding, and develop to the direction of high temperature, high pressure, heavy caliber, high leakproofness, long-life.Its reliability and
Adaptability is important indicator and the direction of enterprise development.With the development of petrochemical industry, particularly oil and gas delivery pipe
Line, oil refining cracker, offshore oil, on coal direct liquefaction oil device and nuclear industry etc. gate valve has obtained widely should
With.
At present, most of gate valves are during flow-rate adjustment, particularly under conditions of small flow, range of flow variation
Greatly, however, industrial production industry needs flow number accurate, so constantly regulate is needed to reach required flow value, gate valve
Adaptability is increasingly difficult to meet the needs of market.
Invention content
In order to solve the deficiency in gate valve use, the drawbacks of gate valve changes in flow rate is big is eliminated, makes it have stronger adaptation
Property.It is an object of the invention to increase flow micro-adjusting device, it is proposed that a kind of novel flow rate finely tunes gate valve, even in small stream
Required flow value can similarly be reached in the case of amount.
The present invention will increase flow micro-adjusting device on the basis of gate valve, can either control fluid on-off, can be with essence
Really reach required traffic requirement, have very important realistic meaning for the adaptability for improving valve.
The technical solution adopted by the present invention is：
The present invention includes valve body, further includes valve deck, the first adjustment component and second adjustment component；Valve deck is connected on valve body
Portion, is equipped in valve body and adjusts the first adjustment component of uninterrupted and second adjustment component, and the first adjustment assembly set is loaded on valve
The middle part of lid and valve body, second adjustment assembly set are loaded in the first adjustment component, are equipped between the first adjustment component and valve body close
Seal is equipped with sealing ring, passes through the first adjustment component and second adjustment component between the first adjustment component and second adjustment component
Move up and down adjustment body cavity valve port size.
The first adjustment component includes the first driving handle, the first valve rod, the first flashboard and the second flashboard, the first lock
Plate and the second flashboard are relatively mounted on valve inner, are sealed between the first flashboard and the second flashboard connecting end surface, the first valve rod
Top is fixedly connected with the first driving handle, is sleeved in valve deck by thread fitting in the middle part of the first driving handle, the first driving hand
Handle lower end is equipped with flange, and flange is embedded between the first flashboard and the second flashboard, after the first driving handle of rotation on the first valve rod
Lower lifting drives the first flashboard and the lifting of the second flashboard, and body cavity bottom centre is equipped under the first flashboard and the second flashboard
The cavity of drop activity.
The second adjustment component includes the second driving handle, the second valve rod and third flashboard, and the second valve rod passes through spiral shell
Line is fitted in the centre bore of the first valve rod, and the second valve stem tip is pierced by after the first valve rod and fixes company with the second driving handle
It connects, the second valve rod bottom end is connect with third flashboard, and third flashboard is set between the first flashboard and the second flashboard.
First flashboard and the structure of the second flashboard are symmetrical, the top of the first flashboard and the second flashboard connecting end surface
Horizontal semi-circular groove is nearby provided with, the first driving handle flange is embedded into the first flashboard and the second flashboard horizontal semi-circular groove type
Into circular groove in, the first flashboard and the second flashboard connecting end surface lower part below horizontal semi-circular groove are all provided with rectangular channel, square
Fan-shaped straight slot is provided in shape slot, the communication direction of fan-shaped straight slot is identical with the fluid circulating direction in valve body.
The third flashboard is mounted between the first flashboard and the rectangular channel of the second flashboard, and the second valve rod bottom end is equipped with convex
Edge, blind hole and setting and the circular trough of blind hole inner end are equipped in third flashboard top, and the diameter of circular trough makes more than blind hole diameter
Flange is obtained to be embedded into the circular trough of third flashboard.
It is sealed respectively by the first sealing ring and second between first flashboard and the second flashboard and the inner wall of valve body
Circle sealing, the first sealing ring and the second sealing ring are ring type seal.
The both ends of the third flashboard are close by third sealing ring and the 4th between the first flashboard, the second flashboard respectively
Seal seals, and third sealing ring and the 4th sealing ring are the square seal ring identical with rectangular reservoir shape size, sealing ring
Middle part is equipped with the straight slot coincideing with the first flashboard and the second flashboard sector straight slot.
First flashboard and the periphery of the second flashboard are evenly distributed with four bolts hole, lead between the first flashboard and the second flashboard
It crosses bolt closely to connect so that the connecting end surface between the first flashboard and the second flashboard forms sealing.
The invention has the advantages that：
The present invention also adds the function being finely adjusted to flow, improves gate valve in addition to the basic function with gate valve
Function adaptability, for the pipeline that flow is accurately adjusted is needed to have fabulous effect.It and can be according to flow value demand to flowing through
The fluid flow of valve carries out trace regulation.
The present invention can meet the needs of fields such as oil and chemical industry.
Description of the drawings
Fig. 1 is the structure diagram of gate valve of the present invention.
Fig. 2 is the first flashboard (the second flashboard) structure diagram of the invention.
Fig. 3 is the first stem structure schematic diagram of the invention.
Fig. 4 is third sealing ring of the present invention (the 4th sealing ring) structure diagram.
In figure：1st, the first driving handle, the 2, first valve rod, 3, valve deck, 4, valve body, the 5, first sealing ring, the 6, first flashboard,
7th, third sealing ring, the 8, the 4th sealing ring, 9, third flashboard 10, the second flashboard, the 11, second sealing ring, the 12, second valve rod, 13,
Second driving handle, 14, cavity.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As shown in Figure 1, the present invention includes valve body 4, valve deck 3, the first adjustment component and second adjustment component；Valve deck 3 connects
On 4 top of valve body, it is equipped in valve body 4 and adjusts the first adjustment component of uninterrupted and second adjustment component, the first adjustment group
Part is set in the middle part of valve deck 3 and valve body 4, and second adjustment assembly set is loaded in the first adjustment component, the first adjustment component and valve
Sealing ring is equipped between body 4, sealing ring is equipped between the first adjustment component and second adjustment component, by the first adjustment component and
Second adjustment component moves up and down valve port size of the adjustment in 4 inner cavity of valve body.
As shown in Figure 1, the first adjustment component includes the first driving handle 1, the first valve rod 2, the first flashboard 6 and the second flashboard
10, the first flashboard 6 and the second flashboard 10 are relatively mounted on inside valve body 4, the first flashboard 6 and 10 connecting end surface of the second flashboard it
Between seal, 2 top of the first valve rod is fixedly connected with the first driving handle 1, and the middle part of the first driving handle 1 is sleeved on by thread fitting
In valve deck 3,1 lower end of the first driving handle is equipped with flange, and flange is embedded between the first flashboard 6 and the second flashboard 10, rotation the
First valve rod, 2 oscilaltion drives the first flashboard 6 and the second flashboard 10 to lift after one driving handle 1,4 intracavity bottom center of valve body
Equipped with the cavity 14 for the 10 decline activity of the first flashboard 6 and the second flashboard；
The second adjustment component includes the second driving handle 13, the second valve rod 12 and third flashboard 9, the second valve rod 12
It is mounted on by thread fitting in the centre bore of the first valve rod 2,12 top of the second valve rod drives after being pierced by the first valve rod 2 with second
Handle 13 is fixedly connected, and 12 bottom end of the second valve rod is connect with third flashboard 9, and third flashboard 9 is set on the first flashboard 6 and the second flashboard
Between 10.
The semi-circular recesses of first flashboard 6 and the second flashboard 10 are convenient for the installation of the first valve rod 2 so that the first valve rod 2 with
It is formed between first flashboard 6, the second flashboard 10 and is synchronized with the movement up and down, third flashboard can be done vertically under the action of the second valve rod
It moves up and down.
The structure of first flashboard 6 and the second flashboard 10 is symmetrical, the top of the first flashboard 6 and 10 connecting end surface of the second flashboard
Horizontal semi-circular groove is nearby provided with, 1 flange of the first driving handle is embedded into the first flashboard 6 and 10 horizontal semi-circular of the second flashboard is recessed
In the circular groove that slot is formed, the first flashboard 6 and 10 connecting end surface lower part of the second flashboard below horizontal semi-circular groove are all provided with square
Shape slot is provided with fan-shaped straight slot in rectangular channel, and the communication direction of fan-shaped straight slot is identical with the fluid circulating direction in valve body 4.Specifically
The fan angle of fan-shaped straight slot is 20 degree in implementation.
Third flashboard 9 is mounted between the first flashboard 6 and the rectangular channel of the second flashboard 10, and third flashboard 9 is the plate of monoblock
Part structure, 12 bottom end of the second valve rod are equipped with flange, blind hole and setting and the circle of blind hole inner end are equipped in 9 top of third flashboard
Slot, the diameter of circular trough are more than blind hole diameter so that flange is embedded into the circular trough of third flashboard 9.
The circular trough of third flashboard 9 is convenient for the installation of the second valve rod 12 so that shape between the second valve rod 12 and third flashboard 9
Into being synchronized with the movement up and down.
Pass through the first sealing ring 5 and the second sealing ring between first flashboard 6 and the second flashboard 10 and the inner wall of valve body 4 respectively
11 sealings, are equipped with the first sealing ring 5, between the second flashboard 10 and the inner wall of valve body 4 between the first flashboard 6 and the inner wall of valve body 4
Equipped with the second sealing ring 11, the first sealing ring 5 and the second sealing ring 11 are ring type seal.
The both ends of third flashboard 9 are close by third sealing ring 7 and the 4th between the first flashboard 6, the second flashboard 10 respectively
Seal 8 seals, and third sealing ring 7 is equipped between 9 and first flashboard 6 of third flashboard, is set between 9 and second flashboard 10 of third flashboard
There is the 4th sealing ring 8,7 and the 4th sealing ring 8 of third sealing ring is the square seal ring identical with rectangular reservoir shape size, close
The middle part of seal is equipped with the straight slot coincideing with the first flashboard 6 and the fan-shaped straight slot of the second flashboard 10.
The periphery of first flashboard 6 and the second flashboard 10 is evenly distributed with four bolts hole, leads between the first flashboard 6 and the second flashboard 10
It crosses bolt closely to connect so that the connecting end surface between the first flashboard 6 and the second flashboard 10 forms sealing.
The outside wall surface and internal face of first valve rod 2 are equipped with screw thread, and the outside wall surface of the second valve rod 2 is screw thread, and 3 top of valve deck leads to
The internal face in hole is equipped with screw thread, the external screw thread of the first valve rod 2 and the screw-internal thread fit of 3 through-hole of valve deck, the internal thread of the first valve rod 2
Coordinate with the external screw thread of the second valve rod 2.
Working process and principle of the invention are：
The present invention has the basic function of gate valve, specifically under the action of the first driving handle, the first flashboard and second
Flashboard is done to move vertically up and down, controls the size of fluid passage section, also adds flow micro-adjusting device in addition, the micromatic setting
It being located between the first flashboard and the second flashboard, third flashboard can be done under the driving of the second valve rod to move vertically up and down, so as to
Control fluid flow through the size in the first valve plate and the second valve plate section.Thus can trace regulation be carried out according to fluid flow.
When gate valve upstream is full of fluid, the first driving handle is rotated up, and the first flashboard and the second flashboard are in the first valve
Upward vertical movement is done under the action of bar, valve is opened at this time, and fluid flows through the first flashboard and the second flashboard reaches gate valve downstream,
When flow value at this time and required flow value are smaller, and are less than required flow value, the second driving handle is slowly rotated up,
The second valve rod drives third flashboard to do upward vertical movement simultaneously, and segment fluid flow flows through the cone of the first flashboard and the second flashboard at this time
Shape horizontal through hole, so as to achieve the purpose that finely tune flow.When only rotating the second driving handle, small flow can be equally realized
It adjusts.
The present invention is directed to eliminate the drawbacks of gate valve changes in flow rate range is big, adjusting is inaccurate, the applicability of gate valve is improved；It is logical
Crossing increases the trace regulation that micromatic setting realizes flow, has invented novel flow rate fine-tuning gate valve.The present invention can adapt in more
Kind needs the occasion to precise control of flew, has prominent significant social benefit and technique effect.
Claims (6)
1. a kind of novel flow rate finely tunes gate valve, including valve body (4), it is characterised in that：Including valve deck (3), the first adjustment component and
Second adjustment component；Valve deck (3) is connected to valve body (4) top, and the first adjustment group for adjusting uninterrupted is equipped in valve body (4)
Part and second adjustment component, middle part of the first adjustment assembly set loaded on valve deck (3) and valve body (4), second adjustment assembly set are loaded on
In the first adjustment component, sealing ring, the first adjustment component and second adjustment component are equipped between the first adjustment component and valve body (4)
Between be equipped with sealing ring, valve of the adjustment in valve body (4) inner cavity is moved up and down by the first adjustment component and second adjustment component
Mouth size；
The first adjustment component includes the first driving handle (1), the first valve rod (2), the first flashboard (6) and the second flashboard
(10), the first flashboard (6) and the second flashboard (10) are relatively mounted on valve body (4) inside, the first flashboard (6) and the second flashboard
(10) it is sealed between connecting end surface, the first valve rod (2) top is fixedly connected with the first driving handle (1), in the middle part of the first valve rod (2)
Be sleeved in valve deck (3) by thread fitting, the first driving handle (1) lower end be equipped with flange, flange be embedded into the first flashboard (6) and
Between second flashboard (10), the first valve rod (2) oscilaltion drives the first flashboard (6) and the to the first driving handle of rotation (1) afterwards
Two flashboards (10) lift, and valve body (4) intracavity bottom center is equipped with for the first flashboard (6) and the second flashboard (10) decline activity
Cavity (14)；
The second adjustment component includes the second driving handle (13), the second valve rod (12) and third flashboard (9), the second valve rod
(12) it is mounted on by thread fitting in the centre bore of the first valve rod (2), after the second valve rod (12) top is pierced by the first valve rod (2)
It is fixedly connected with the second driving handle (13), the second valve rod (12) bottom end is connect with third flashboard (9), and third flashboard (9) is set on
Between first flashboard (6) and the second flashboard (10).
2. a kind of novel flow rate fine tuning gate valve according to claim 1, it is characterised in that：First flashboard (6) and
The structure of second flashboard (10) is symmetrical, and the adjacent upper part of the first flashboard (6) and the second flashboard (10) connecting end surface is provided with water
Flat semicircle groove, the first valve rod (2) flange are embedded into the circle that the first flashboard (6) and the second flashboard (10) horizontal semi-circular groove are formed
In connected in star, the first flashboard (6) and the second flashboard (10) connecting end surface lower part below horizontal semi-circular groove are all provided with rectangular channel, square
Fan-shaped straight slot is provided in shape slot, the communication direction of fan-shaped straight slot is identical with the fluid circulating direction in valve body (4).
3. a kind of novel flow rate fine tuning gate valve according to claim 1, it is characterised in that：Third flashboard (9) peace
Between the rectangular channel of the first flashboard (6) and the second flashboard (10), the second valve rod (12) bottom end is equipped with flange, third flashboard
(9) it is equipped with blind hole in top and is set to the circular trough of blind hole inner end, the diameter of circular trough is more than blind hole diameter so that flange is embedding
Enter into the circular trough of third flashboard (9).
4. a kind of novel flow rate fine tuning gate valve according to claim 1, it is characterised in that：First flashboard (6) and
It is sealed respectively by the first sealing ring (5) and the second sealing ring (11) between the inner wall of second flashboard (10) and valve body (4), first
Sealing ring (5) and the second sealing ring (11) are ring type seal.
5. a kind of novel flow rate fine tuning gate valve according to claim 1, it is characterised in that：The third flashboard (9)
Both ends are sealed between the first flashboard (6), the second flashboard (10) by third sealing ring (7) and the 4th sealing ring (8) respectively, the
Three sealing rings (7) and the 4th sealing ring (8) are the square seal ring identical with rectangular reservoir shape size, are set in the middle part of sealing ring
There is the straight slot coincideing with the first flashboard (6) and the fan-shaped straight slot of the second flashboard (10).
6. a kind of novel flow rate fine tuning gate valve according to claim 1, it is characterised in that：First flashboard (6) and
The periphery of second flashboard (10) is evenly distributed with four bolts hole, is closely connected by bolt between the first flashboard (6) and the second flashboard (10)
It connects so that the connecting end surface between the first flashboard (6) and the second flashboard (10) forms sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610307302.2A CN105757271B (en) | 2016-05-10 | 2016-05-10 | A kind of novel flow rate finely tunes gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610307302.2A CN105757271B (en) | 2016-05-10 | 2016-05-10 | A kind of novel flow rate finely tunes gate valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105757271A CN105757271A (en) | 2016-07-13 |
| CN105757271B true CN105757271B (en) | 2018-07-06 |
Family
ID=56323773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610307302.2A Active CN105757271B (en) | 2016-05-10 | 2016-05-10 | A kind of novel flow rate finely tunes gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105757271B (en) |
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| CN107514910A (en) * | 2017-08-16 | 2017-12-26 | 阿尔赛(苏州)无机材料有限公司 | The accurate adjustable sintering furnace exhaust screen mechanism of aperture |
| CN110530436A (en) * | 2018-05-23 | 2019-12-03 | 中国石油天然气股份有限公司 | Differential pressure type metering device, flow metering method and device and storage medium |
| CN108679254A (en) * | 2018-06-04 | 2018-10-19 | 江苏天域阀业制造有限公司 | A kind of valve of achievable flow rate fine-tuning |
| CN108916444B (en) * | 2018-07-23 | 2024-01-12 | 赛莱默欧洲有限公司 | Leakage-proof and flow regulating device for gate |
| CN109185483A (en) * | 2018-10-02 | 2019-01-11 | 盐城欧润石化设备制造有限公司 | A kind of combined valve |
| CN110822138B (en) * | 2019-11-15 | 2021-07-13 | 中国化学工程第六建设有限公司 | Water supply and drainage system and construction method |
| CN110792792B (en) * | 2019-11-18 | 2021-11-30 | 晟福（天津）流体自动控制设备有限公司 | Valve with double sealing effect |
| CN113623457A (en) * | 2020-05-09 | 2021-11-09 | 中国石油天然气集团有限公司 | Throttle valve |
| CN113803482B (en) * | 2021-09-16 | 2024-03-26 | 浙江胜得龙阀门有限公司 | High-precision gate valve capable of being finely adjusted |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1134811A (en) * | 1914-05-09 | 1915-04-06 | Homer S Berger | Gate-valve. |
| US2326988A (en) * | 1941-12-24 | 1943-08-17 | Smith Co Howard | Gate valve |
| US4405113A (en) * | 1981-05-11 | 1983-09-20 | Josiephine Reed Erwin | Reciprocating expandable gate valve |
| CN2466445Y (en) * | 2000-10-11 | 2001-12-19 | 陈联芝 | Double valve-rod easy-to-open high-pressure gate valve |
| CN2709727Y (en) * | 2004-04-30 | 2005-07-13 | 孙兴聚 | Double-sealing blind rod sluice valve |
| RU2338108C1 (en) * | 2007-03-12 | 2008-11-10 | Общество с ограниченной ответственностью "НефтемашСистема" | Gate valve |
| CN104500767A (en) * | 2014-12-10 | 2015-04-08 | 江苏国泉泵业制造有限公司 | Novel flow regulating brake valve |
-
2016
- 2016-05-10 CN CN201610307302.2A patent/CN105757271B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1134811A (en) * | 1914-05-09 | 1915-04-06 | Homer S Berger | Gate-valve. |
| US2326988A (en) * | 1941-12-24 | 1943-08-17 | Smith Co Howard | Gate valve |
| US4405113A (en) * | 1981-05-11 | 1983-09-20 | Josiephine Reed Erwin | Reciprocating expandable gate valve |
| CN2466445Y (en) * | 2000-10-11 | 2001-12-19 | 陈联芝 | Double valve-rod easy-to-open high-pressure gate valve |
| CN2709727Y (en) * | 2004-04-30 | 2005-07-13 | 孙兴聚 | Double-sealing blind rod sluice valve |
| RU2338108C1 (en) * | 2007-03-12 | 2008-11-10 | Общество с ограниченной ответственностью "НефтемашСистема" | Gate valve |
| CN104500767A (en) * | 2014-12-10 | 2015-04-08 | 江苏国泉泵业制造有限公司 | Novel flow regulating brake valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105757271A (en) | 2016-07-13 |
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Application publication date: 20160713 Assignee: ZHEJIANG GUTE PNEUMATIC MACHINERY Co.,Ltd. Assignor: ZHEJIANG SCI-TECH University Contract record no.: X2020330000021 Denomination of invention: Novel flow fine-adjustment gate valve Granted publication date: 20180706 License type: Common License Record date: 20200423 |