CN202195087U - Self-locking anti-crack flat gate valve - Google Patents
Self-locking anti-crack flat gate valve Download PDFInfo
- Publication number
- CN202195087U CN202195087U CN2011203357756U CN201120335775U CN202195087U CN 202195087 U CN202195087 U CN 202195087U CN 2011203357756 U CN2011203357756 U CN 2011203357756U CN 201120335775 U CN201120335775 U CN 201120335775U CN 202195087 U CN202195087 U CN 202195087U
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- valve
- flashboard
- oil cylinder
- depression bar
- cylinder
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Abstract
A self-locking anti-crack flat gate valve is composed of a flat valve, a hydraulic servo control system and a gate plate manual opening device. The hydraulic servo control system comprises a gate plate control oil cylinder and a feedback pipeline. The gate plate control oil cylinder is arranged on the upper portion of the flat valve and is screwed on outer threads of the upper portion of a valve cover through inner threads on the lower portion of a cylinder body. A gate plate in the flat valve is fixedly connected with a piston in the gate plate control oil cylinder through a valve rod. A hydraulic cavity in the gate plate control oil cylinder is connected with an outlet of the flat valve through the feedback pipeline. The gate plate control oil cylinder is arranged at the upper portion of the flat valve, automatic close of the valve is achieved through pressure difference at the end of an output hole of the flat valve, namely when the end of the output hole of the valve has certain oil pressure, the valve is in an open state, and when the end of output hole losses pressure, the valve is in a closed state immediately. The self-locking anti-crack flat gate valve is simple in principle, reasonable in structure, swift in self-locking movement, and has good protection effects on crude oil exploitation safety and prevention of crude oil leaking pollution.
Description
Technical field
The utility model relates to a kind of plate valve, and particularly a kind of gate valve that can automatic-closing valve under outlet conduit meets accident the situation of explosion belongs to fluid gate valve design and manufacturing technology field.
Background technique
The pipeline that is widely used at present in petroleum production, oil transportation, chemical product manufacturing and the boats and ships opens and closes valve, all belongs to manual control valve mostly.They can satisfy the through-flow needs of fluid in the pipeline under normal state; But under abnormal condition; Promptly, output pipeline breaks when meeting accident; Particularly this breaking can not come to light very soon and can not in time close, or breaks when causing great dangerous situation that the people can not the scene be closed owing to this, and manual control valve has just lost its effect.Such as: the petroleum pipeline of China generally all is exposed on the wilderness; A lot of pipes laying are wherein arranged in unfrequented remote mountain area, these pipelines receive the threat of two aspects always for a long time, and one, the threat of extreme severe cold weather; Be that bursting by freezing takes place under the temperature of subzero more than 40 degree pipeline; Though people have done many effort aspect pipeline antifreeze, also realized good effect, the frost crack pipe phenomenon still happens occasionally; And the possibility of in time finding pipeline breaking is extremely low, has caused great crude oil waste; Two, the threat of artificial destruction destroys recently the petroleum pipeline in oil field again and again the Xinjiang region East Turkistan terrorists, it not only causes a large amount of crude oil to run off or is burnt, but also causes local environmental pollution; For another example: the fire disaster that the Dalian oil refinery causes because of pipeline breaking; Make directly throttle down cut-out oil sources of people; Cause great crude oil economic loss and environmental pollution etc., these all constitute a serious threat and heavy economic losses to Oil Safety, energy conservation, the environmental pollution aspect of China.To this; We except on legal system, management takes necessary means to strengthen hitting dynamics and the emphasis prevention; Also should be from technological layer through improvement to the oil equipment, the functional design that particularly increase is closed automatically to control valve is that very necessity also is feasible.
The model utility content
Valve closing problem automatically when solving the pipeline rapid decompression, the utility model provides a kind of self-locking to prevent the explosion plate valve, and the pressure difference when it utilizes decompression in the pipeline closing of control valve.
To achieve these goals, the utility model takes following technological scheme to implement: it is made up of flap type, hydraulic servo control system, flashboard manual unlocking device.
Said flap type comprises valve body, valve gap, valve rod, seat ring and flashboard.
Said hydraulic servo control system is made up of flashboard control oil cylinder and feedback pipe.
The flange plate of said valve body is provided with a radial direction through hole from the flange plate external cylindrical surface to the valve outlet hole.
Through flow hole on the said flashboard is positioned at the top of flashboard.
Said flashboard control oil cylinder comprises cylinder body, cylinder cap, piston and spring, and said piston clearance is matched with inboard wall of cylinder block, and the one of which side is that hydraulic pressure cavity, opposite side are spring chamber, and said spring is contained in the spring chamber.
Said cylinder cap is provided with the hole of hydraulic pressure cavity and exterior.
Be provided with a stop valve in the said feedback pipe.
Said flashboard manual unlocking device comprises handwheel, depression bar, depression bar nut and connecting sleeve.
For being fixedly connected, depression bar is combined in the depression bar nut between said handwheel and the depression bar nut, and the depression bar nut is movably connected on the connecting sleeve through two thrust ball bearings.
It is characterized in that:
Flap type top is provided with flashboard control oil cylinder, and its internal thread through inferior part of the cylinder block screws on the outside thread on valve gap top;
Flashboard in the flap type fixes through the piston in valve rod and the flashboard control oil cylinder and is connected;
Be connected through feedback pipe between the hole that cylinder cap is provided with and the through hole that the valve flange dish is provided with;
Flashboard manual unlocking device screws on the outside thread on the cylinder cap top in flashboard control oil cylinder through the internal thread of connecting sleeve bottom, and the hole that its depression bar lower end is passed in the cylinder cap puts in hydraulic pressure cavity.
The utility model is provided with flashboard control oil cylinder on the top of conventional flat plate valve; The upper and lower motion that the variation in pressure of utilizing flap type to export nose end is come control piston; Thereby drive the decline and the rising of valve plate, so as to realizing the open and close of valve, promptly the outlet nose end oil pressure when valve has under the situation of certain pressure; The state that valve is in out all the time is in case and the outlet nose end of valve loses pressure valve is in closed condition immediately.Therefore, it can be implemented under the emergency case that output oil pipe suffers bursting by freezing or explosion, cuts off the purpose of output circuit immediately.
It is sensitive to the utlity model has rational in infrastructure, self-locking effect, effectively prevents in the oil pipe advantages such as a large amount of leakages of crude oil.
Description of drawings
Accompanying drawing 1 is the main sectional structure schematic representation of the utility model;
Accompanying drawing 2 is the main sectional structure schematic representation of the utility model under manual unlocking flashboard state;
Accompanying drawing 3 is kept the main sectional structure schematic representation under the flashboard open mode for the utility model surging.
In accompanying drawing 1,2,3: 1 valve body, 2 valve rods, 3 valve gaps, 4 springs, 5 cylinder bodies, 6 cylinder caps, 7 handwheels, 8 depression bar nuts, 9 connecting sleeves, 10 depression bars, 11 feedback pipelines, 12 stop valves, 13 pistons, 14 seat rings, 15 flashboards.
Embodiment
Shown in accompanying drawing 1; Valve body 1 is formed the conventional flat plate valve with valve rod 2, valve gap 3, seat ring 14, flashboard 15; Different is: on the flange plate of valve body 1, be provided with one from the flange plate external cylindrical surface to valve body the radial direction through hole of 1 exit orifice, the through flow hole in the flashboard 16 is positioned at the top of flashboard 16; Flashboard control oil cylinder in the hydraulic servo control system; Internal thread through cylinder body 5 bottoms screws on the outside thread on valve gap 3 tops; Piston 13 is sealed and matched at the inner wall part of cylinder body 5; The inner chamber of cylinder body 5 is divided into hydraulic pressure cavity and spring chamber, and spring 4 places in the spring chamber, and the flashboard 15 in the flap type fixes through the piston 13 in valve rod 2 and the flashboard control oil cylinder and is connected; Cylinder cap 6 is provided with and is connected in hydraulic pressure cavity to outside through hole, this through hole the outside be connected through the radial direction through hole of feedback pipe 11 with valve body 1 upper flange plate, be provided with a stop valve 12 in the feedback pipe 11; Between handwheel 7 in the flashboard manual unlocking device and the depression bar nut 8 for being fixedly connected; Depression bar 10 is combined in the depression bar nut 8; Depression bar nut 8 is movably connected on the connecting sleeve 6 through two thrust ball bearings; The internal thread of connecting sleeve 6 through the bottom screws on the outside thread on cylinder cap 6 tops of flashboard control oil cylinder, and the hole that the lower end of depression bar 10 is passed in the cylinder cap 6 puts in hydraulic pressure cavity.
During installation the utility model is serially connected in the origin or beginning of output oil pipe, and makes the flange plate that contains radial hole in the valve body 1 be positioned at the rear portion of flashboard 15.Shown in accompanying drawing 2; At first pass through the handwheel 7 in the rotation flashboard manual unlocking device during work; Drive depression bar nut 8 and rotate, make depression bar 10 move downward and depress piston 13, valve rod 2, flashboard 15 in the flashboard control oil cylinder, make the through flow hole on flashboard 15 tops and the hole on the seat ring 14 intersect directly only coaxial; This moment, flap type was in open mode; Output crude oil gets into output pipeline through the utility model, exports crude oil simultaneously again through radial hole and feedback pipe 11 on the valve body 1 outlet end flange plate, gets into the hydraulic pressure cavity in the flashboard control oil cylinder and on piston 13, imposes oil pressure.Shown in accompanying drawing 3, this oil pressure has replaced the pressure of depression bar 10, piston 13 is remained on valve is on the position of opening all the time, and the counterrotating handwheel 7 then, put on depression bar 10 to the home position, and flap type begins proper functioning.Bursting by freezing or explosion in case output pipe meets accident; Pressure in its output pipe descends rapidly; When its pressure drops to the underpressure that makes in the hydraulic pressure cavity with the spring power of balance spring chamber medi-spring 4; Piston 13 moves upward under the spring power effect of spring 4, and drive valve rod 2, flashboard 15 moves upward, thereby get back to the passageway shuts off output oil sources that position as shown in Figure 1 is closed plate valve automatically.Be not difficult to find out through the above embodiments; The beneficial effect of the utility model is that it compares with traditional plate valve; Have significantly anti-oil pipe bursting by freezing and explosion function, thus the appearance of the utility model undoubtedly will to the exploitation of crude oil in China safely, prevent that aspect such as crude oil pollution environment from playing the positive effect of ten minutes.
Claims (3)
1. a self-locking is prevented the explosion plate valve, and it is made up of flap type, hydraulic servo control system, flashboard manual unlocking device,
Said flap type comprises valve body, valve gap, valve rod, seat ring and flashboard;
Said hydraulic servo control system is made up of flashboard control oil cylinder and feedback pipe;
The flange plate of said valve body is provided with a radial direction through hole from the flange plate external cylindrical surface to the valve outlet hole;
Said flashboard control oil cylinder comprises cylinder body, cylinder cap, piston and spring, and said piston clearance is matched with inboard wall of cylinder block, and the one of which side is that hydraulic pressure cavity, opposite side are spring chamber, and said spring is contained in the spring chamber;
Said cylinder cap is provided with the hole of hydraulic pressure cavity and exterior;
Be provided with a stop valve in the said feedback pipe;
Said flashboard manual unlocking device comprises handwheel, depression bar, depression bar nut and connecting sleeve;
For being fixedly connected, depression bar is combined in the depression bar nut between said handwheel and the depression bar nut, and the depression bar nut is movably connected on the connecting sleeve through two thrust ball bearings,
It is characterized in that:
Flap type top is provided with flashboard control oil cylinder, and its internal thread through inferior part of the cylinder block screws on the outside thread on valve gap top;
Flashboard in the flap type fixes through the piston in valve rod and the flashboard control oil cylinder and is connected;
Be connected through feedback pipe between the hole that cylinder cap is provided with and the through hole that the valve flange dish is provided with.
2. a kind of self-locking as claimed in claim 1 is prevented the explosion plate valve; It is characterized in that said flashboard manual unlocking device screws on the outside thread on the cylinder cap top in flashboard control oil cylinder through the internal thread of connecting sleeve bottom, the hole that its depression bar lower end is passed in the cylinder cap puts in hydraulic pressure cavity.
3. a kind of self-locking as claimed in claim 1 is prevented the explosion plate valve, it is characterized in that the through flow hole on the said flashboard is positioned at the top of flashboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203357756U CN202195087U (en) | 2011-08-28 | 2011-08-28 | Self-locking anti-crack flat gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203357756U CN202195087U (en) | 2011-08-28 | 2011-08-28 | Self-locking anti-crack flat gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202195087U true CN202195087U (en) | 2012-04-18 |
Family
ID=45949997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203357756U Expired - Lifetime CN202195087U (en) | 2011-08-28 | 2011-08-28 | Self-locking anti-crack flat gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202195087U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103520869A (en) * | 2013-10-24 | 2014-01-22 | 浙江信达可恩消防实业有限责任公司 | Self-locking pressure signal feedback device |
| CN103939631A (en) * | 2014-04-24 | 2014-07-23 | 江苏金石富源机械有限公司 | Self-driving externally-controlled two-circuit safety gate valve |
| CN104879543A (en) * | 2015-06-08 | 2015-09-02 | 德阳正光机电设备有限公司 | Automatic-control constant-pressure throttling valve |
| CN105605236A (en) * | 2015-11-02 | 2016-05-25 | 苏州市淞舜五金有限公司 | Shock absorption and lubrication valve rod |
| RU173323U1 (en) * | 2016-07-11 | 2017-08-22 | ООО "ЗНПО УНИКОМ", Общество с ограниченной ответственностью "Завод нефтепромыслового оборудования УНИКОМ" | SAFETY AND REGULATORY DEVICE |
| CN108180306A (en) * | 2018-01-18 | 2018-06-19 | 宁波海天金属成型设备有限公司 | A kind of hydraulic resistance balance adjusts the control structure of valve deck |
| CN109027278A (en) * | 2018-09-10 | 2018-12-18 | 铜陵爱阀科技有限公司 | A kind of pressure self-control type gate valve |
| CN109058491A (en) * | 2018-09-18 | 2018-12-21 | 杨胜 | A kind of power station sluice valve |
| CN110821910A (en) * | 2019-11-19 | 2020-02-21 | 衡阳市林肯液压设备有限公司 | Hydraulic valve body convenient to control |
-
2011
- 2011-08-28 CN CN2011203357756U patent/CN202195087U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103520869A (en) * | 2013-10-24 | 2014-01-22 | 浙江信达可恩消防实业有限责任公司 | Self-locking pressure signal feedback device |
| CN103520869B (en) * | 2013-10-24 | 2016-09-07 | 浙江信达可恩消防实业有限责任公司 | Self-locking pressure signal feedback device |
| CN103939631A (en) * | 2014-04-24 | 2014-07-23 | 江苏金石富源机械有限公司 | Self-driving externally-controlled two-circuit safety gate valve |
| CN104879543A (en) * | 2015-06-08 | 2015-09-02 | 德阳正光机电设备有限公司 | Automatic-control constant-pressure throttling valve |
| CN105605236A (en) * | 2015-11-02 | 2016-05-25 | 苏州市淞舜五金有限公司 | Shock absorption and lubrication valve rod |
| RU173323U1 (en) * | 2016-07-11 | 2017-08-22 | ООО "ЗНПО УНИКОМ", Общество с ограниченной ответственностью "Завод нефтепромыслового оборудования УНИКОМ" | SAFETY AND REGULATORY DEVICE |
| CN108180306A (en) * | 2018-01-18 | 2018-06-19 | 宁波海天金属成型设备有限公司 | A kind of hydraulic resistance balance adjusts the control structure of valve deck |
| CN109027278A (en) * | 2018-09-10 | 2018-12-18 | 铜陵爱阀科技有限公司 | A kind of pressure self-control type gate valve |
| CN109027278B (en) * | 2018-09-10 | 2019-11-22 | 铜陵爱阀科技有限公司 | A kind of pressure self-control type gate valve |
| CN109058491A (en) * | 2018-09-18 | 2018-12-21 | 杨胜 | A kind of power station sluice valve |
| CN109058491B (en) * | 2018-09-18 | 2019-11-08 | 温州三菱阀门锻造有限公司 | A kind of power station sluice valve |
| CN110821910A (en) * | 2019-11-19 | 2020-02-21 | 衡阳市林肯液压设备有限公司 | Hydraulic valve body convenient to control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120418 |