CN104676027A - Hydraulic flat valve - Google Patents

Hydraulic flat valve Download PDF

Info

Publication number
CN104676027A
CN104676027A CN201510044403.0A CN201510044403A CN104676027A CN 104676027 A CN104676027 A CN 104676027A CN 201510044403 A CN201510044403 A CN 201510044403A CN 104676027 A CN104676027 A CN 104676027A
Authority
CN
China
Prior art keywords
valve
plate
hydraulic
hydraulic pressure
pressure cavity
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.)
Pending
Application number
CN201510044403.0A
Other languages
Chinese (zh)
Inventor
梁枫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Lvdi Technology Co Ltd
Original Assignee
Chengdu Lvdi Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chengdu Lvdi Technology Co Ltd filed Critical Chengdu Lvdi Technology Co Ltd
Priority to CN201510044403.0A priority Critical patent/CN104676027A/en
Publication of CN104676027A publication Critical patent/CN104676027A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00Construction of housing; Use of materials therefor
    • F16K27/04Construction of housing; Use of materials therefor of sliding valves
    • F16K27/044Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02Gate 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30Details
    • F16K3/32Means for additional adjustment of the rate of flow
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/12Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston

Abstract

The invention discloses a hydraulic flat valve. The hydraulic flat valve comprises a valve body, a valve rod and a valve plate, wherein space for accommodating the valve rod and the valve plate is formed in the valve body; the valve rod is provided with threads which are matched with the valve body; a hydraulic cavity is formed in the valve body; the valve rod is positioned in the hydraulic cavity and is connected with the valve plate through a pressure plate; the pressure plate is positioned on the bottom of the hydraulic cavity; and the valve plate is positioned on the bottom of the pressure plate. According to the technical scheme, the impact force of the outside on the flat valve can be buffered, and the hydraulic flat valve can work normally in a severe environment.

Description

A kind of hydraulic flat plate valve
Technical field
The present invention relates to machinery valve field, especially relate to a kind of hydraulic flat plate valve.
Background technique
Valve controls very important parts in pipeline transport and flow of fluid operation.Especially in petroleum pipeline and natural gas line, pipeline bears very large pressure, and the sealing of valve and anti-pressure ability determine the Safety performance of pipeline transport.Existing ducted valve is mechanical valve, completes opening of valve and closes, and need manual operation by screw thread rotation mechanism.But in rugged environment, such as: plateau section, extremely frigid zones, valve needs to carry out special process, to prevent corrosion to valve and freezing valve, the something unexpected happened when carrying out safeguarding and process emergency incident.The means of process are also from the original development being packaged into Latest Materials, but no matter are that effect is undesirable or financial cost is too high, and the problem that valve can not resist the aspects such as severe cold weather, buffering liquid pressure and ambient pressure is still still given prominence to.
Summary of the invention
In view of the defect that above-mentioned prior art exists, the object of the invention is to propose a kind of hydraulic flat plate valve.
Object of the present invention will be achieved by the following technical programs: a kind of hydraulic flat plate valve, comprise valve body, valve rod and valve plate, described valve body is provided with the space holding described valve rod and valve plate, described valve rod is provided with the screw thread matched with described valve body, be provided with hydraulic pressure cavity in described valve body, described valve rod is positioned at described hydraulic pressure cavity, is connected between described valve rod with described valve plate by pressing plate, described pressing plate is positioned at the bottom of described hydraulic pressure cavity, and described valve plate is positioned at the bottom of described pressing plate.
Preferably, above-mentioned a kind of hydraulic flat plate valve: described hydraulic pressure cavity is connected with the inner wall sealing of described valve body.
Preferably, above-mentioned a kind of hydraulic flat plate valve: the bottom of described hydraulic pressure cavity and top are movable.
Preferably, above-mentioned a kind of hydraulic flat plate valve: described valve rod and described hydraulic pressure cavity are sealed by seal ring.
Preferably, above-mentioned a kind of hydraulic flat plate valve: the inwall of described valve body is provided with the limiting stopper limiting described hydraulic pressure cavity and move up and down.
Outstanding effect of the present invention is: 1) in original flap type, arrange hydraulic pressure cavity, can be distributed in hydraulic pressure by impact force, cushion the destruction of causing flap type; 2) mechanical structure that liquid in hydraulic pressure cavity is different and simple, can protect valve rod to be corroded or freezing under the rugged environment such as severe cold, ensures the smoothness of operation; 3) valve rod is connected by pressing plate with valve plate, and when hydraulic pressure cavity Volume Changes, pressure uniform can be dispersed on valve plate by briquetting, prevents the too small stability problem causing valve plate of the lifting surface area of valve plate.
Below just accompanying drawing in conjunction with the embodiments, is described in further detail the specific embodiment of the present invention, is easier to understand, grasp to make technical solution of the present invention.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of hydraulic flat plate valve of the present embodiment.
Embodiment
As shown in Figure 1, a kind of hydraulic flat plate valve of the present embodiment, comprises valve body 1, valve rod 2 and valve plate 3, and valve body 1 is provided with the space holding valve rod 2 and valve plate 3, the passage that valve body 1 separately has for liquid or gas passes through.Valve rod 2 is provided with the screw thread matched with valve body 1, and valve rod 2 and valve body 1 are relatively rotated by screw thread, thus axial displacement occurs.Be provided with hydraulic pressure cavity 4 in valve body 1, valve rod 2 is positioned at hydraulic pressure cavity 4 and is sealed by seal ring with hydraulic pressure cavity 4.Be connected by pressing plate 5 between valve rod 2 with valve plate 3, pressing plate 3 is positioned at the bottom of hydraulic pressure cavity 4, and valve plate 3 is positioned at the bottom of pressing plate 5.
The inwall of hydraulic pressure cavity 4 and valve body 1, for being tightly connected, ensures can not be deep in hydraulic pressure cavity 4 by the gas of valve body or liquid.And the bottom of hydraulic pressure cavity 4 and top are movable, namely the space of hydraulic pressure cavity 4 is variable spaces, the rise and fall of valve plate 3 of the reacting condition in this space.In order to limit the spatial variations of hydraulic pressure cavity 4, the inwall of valve body 1 is provided with the limiting stopper 6 that restriction hydraulic pressure cavity 4 moves up and down.
When rotary valve rod 2, valve rod 2 is by the rotational translation of screw thread for moving axially, and the space promoting hydraulic pressure cavity 4 changes, thus the bottom of hydraulic pressure cavity 4 promotes valve plate 3 moves down, and stops passage.
The present invention still has numerous embodiments, all employing equivalents or equivalent transformation and all technological schemes formed, and all drops within protection scope of the present invention.

Claims (5)

1. a hydraulic flat plate valve, comprise valve body, valve rod and valve plate, described valve body is provided with the space holding described valve rod and valve plate, described valve rod is provided with the screw thread matched with described valve body, it is characterized in that: be provided with hydraulic pressure cavity in described valve body, described valve rod is positioned at described hydraulic pressure cavity, is connected between described valve rod with described valve plate by pressing plate, described pressing plate is positioned at the bottom of described hydraulic pressure cavity, and described valve plate is positioned at the bottom of described pressing plate.
2. a kind of hydraulic flat plate valve according to claim 1, is characterized in that: described hydraulic pressure cavity is connected with the inner wall sealing of described valve body.
3. a kind of hydraulic flat plate valve according to claim 1, is characterized in that: the bottom of described hydraulic pressure cavity and top are movable.
4. a kind of hydraulic flat plate valve according to claim 1, is characterized in that: described valve rod and described hydraulic pressure cavity are sealed by seal ring.
5. a kind of hydraulic flat plate valve according to claim 4, is characterized in that: the inwall of described valve body is provided with the limiting stopper limiting described hydraulic pressure cavity and move up and down.
CN201510044403.0A 2015-01-29 2015-01-29 Hydraulic flat valve Pending CN104676027A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510044403.0A CN104676027A (en) 2015-01-29 2015-01-29 Hydraulic flat valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510044403.0A CN104676027A (en) 2015-01-29 2015-01-29 Hydraulic flat valve

Publications (1)

Publication Number Publication Date
CN104676027A true CN104676027A (en) 2015-06-03

Family

ID=53311454

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510044403.0A Pending CN104676027A (en) 2015-01-29 2015-01-29 Hydraulic flat valve

Country Status (1)

Country Link
CN (1) CN104676027A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2280009A1 (en) * 1974-07-22 1976-02-20 Atwood & Morrill Co Inc Assisted valve closing device
CN2382913Y (en) * 1999-04-10 2000-06-14 吕忠岩 Hydraulic delay water tap
CN2584969Y (en) * 2002-11-22 2003-11-05 宁波法兰特阀门有限公司 Balance stop valve
CN203670846U (en) * 2014-01-16 2014-06-25 西安东新石油设备厂有限公司 Flat gate valve with under-pressure replace valve rod and balance rod
CN204647367U (en) * 2015-01-29 2015-09-16 成都绿迪科技有限公司 A kind of hydraulic flat plate valve

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2280009A1 (en) * 1974-07-22 1976-02-20 Atwood & Morrill Co Inc Assisted valve closing device
CN2382913Y (en) * 1999-04-10 2000-06-14 吕忠岩 Hydraulic delay water tap
CN2584969Y (en) * 2002-11-22 2003-11-05 宁波法兰特阀门有限公司 Balance stop valve
CN203670846U (en) * 2014-01-16 2014-06-25 西安东新石油设备厂有限公司 Flat gate valve with under-pressure replace valve rod and balance rod
CN204647367U (en) * 2015-01-29 2015-09-16 成都绿迪科技有限公司 A kind of hydraulic flat plate valve

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PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150603