CN102900858A - Pressure relief type pipeline quick opening and closing device - Google Patents
Pressure relief type pipeline quick opening and closing device Download PDFInfo
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- CN102900858A CN102900858A CN2012103977137A CN201210397713A CN102900858A CN 102900858 A CN102900858 A CN 102900858A CN 2012103977137 A CN2012103977137 A CN 2012103977137A CN 201210397713 A CN201210397713 A CN 201210397713A CN 102900858 A CN102900858 A CN 102900858A
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- flashboard
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Abstract
The invention discloses a pressure relief type pipeline quick opening and closing device, and relates to the field of flat gate valves. The device comprises a valve body (3), a valve rod (4) and a wedge disc component (2). The wedge disc component comprises large wedge discs (21), a small wedge disc (22) and a fixed plate (23). A waist-shaped hole (26) is formed in each of the two sides of the small wedge disc. A shaft pin is arranged in each waist-shaped hole. The two ends of the shaft pins are connected with the large wedge discs. Pressure relief holes are formed in the large and small wedge discs. Flow guide holes are formed below the pressure relief holes in the large wedge discs. The fixed plate is arranged below the small wedge disc between the large wedge discs. When a valve is opened, the valve rod drives the small wedge disc to move upwards to communicate the pressure relief holes in the small and large wedge discs to relieve a part of pressure, and then drives the large wedge discs to quickly open the valve upwards, so that great convenience is brought to a pipeline operator, manpower and time are saved simultaneously, and the device can be operated more safely.
Description
Technical field
The present invention relates to the plate valve field, particularly be a kind of device that comes fast opening and closing by the pressure release mode.
Background technique
Particularly in the industries such as oil-extracting and water-injecting, chemical industry, power station, medium or heavy caliber high pressure plate valve is widely adopted, water produces powerful pressure to flashboard in high pressure valve, the valve opening and closing difficult, need to many people operate simultaneously or install additional the deceleration power assisting device and need dozens of minutes to open and close, particularly in oil-extracting and water-injecting, in case conduit wiring piercing or power failure, if in time opening/shutting valve will cause serious harm to pump group and low pressure pipeline system.
Summary of the invention
In view of problems of the prior art, technical problem solved by the invention aims to provide a kind of mode by pressure release, particularly realizes the pressure-relief type pipeline fast opening and closing device of fast opening and closing in high pressure pipe line.
For solving the problems of the technologies described above, the present invention finishes enforcement as follows:
A kind of pressure-relief type pipeline fast opening and closing device, include valve body, flashboard assembly, valve component, valve rod, the valve rod bracket component, be provided with the medium channel that medium flows into and reserves in this valve body, be provided with valve component in the described medium channel, this valve component comprises valve seat, described valve rod bracket component is arranged on the valve body, described valve rod passes that the valve rod bracket component stretches in the valve body and is connected with flashboard assembly in being arranged on valve body, the lifting between valve seat of valve rod and flashboard assembly is linked, it is characterized in that described flashboard assembly comprises two big dampers, little flashboard and fixed plate, both sides on the described little flashboard respectively are provided with waist shaped hole, in this waist shaped hole, be provided with pivot pin, respectively connect a big damper in described little flashboard parallel surface both sides by pivot pin, described little flashboard is provided with relief hole, the size of this little flashboard and described big damper top are complementary, described big damper is provided with relief hole, the below of relief hole is provided with pod apertures on the big damper, relief hole when pivot pin is positioned at the waist shaped hole upper end on the described little flashboard and the relief hole consistency from top to bottom on the big damper and progressive error are the stroke of described waist shaped hole, between described two big dampers and below little flashboard, locate to arrange described fixed plate, this fixed plate is provided with the through hole that is complementary with described pod apertures, be connected with little flashboard by valve rod between described valve rod and the flashboard assembly, valve seat is separately positioned on the both sides of flashboard assembly.
The bottom of described little flashboard is arranged to trapezoidal.
Be provided with step on the described pivot pin, on described little flashboard was arranged on and tops bar, on described big damper was arranged on and gets out of a predicament or an embarrassing situation, the length of topping bar was greater than the width of little flashboard.
This device also includes the balancing pole assembly, and described balancing pole assembly includes little axle, and this little axle is connected to the bottom of described flashboard assembly by contiguous block, and described little axle passes the bottom of valve body, is provided with flange seat between little axle and the valve body.
Described contiguous block inside is provided with shoulder hole, the circular hole that is complementary with the little axle diameter of axle that this shoulder hole lower end is communicated with that the aperture diminishes, the upper end of little axle arranges ladder block, this ladder block be arranged in the shoulder hole and the bore of ladder block less than described shoulder hole greater than described circular hole.
Described flange seat is arranged on the valve body bottom, is provided with O-ring seals respectively and between valve body and the little axle.
Described valve body bottom also is provided with lower casing.
The positive effect of invention is: when little flashboard relief hole area is above greater than pipeline area 10% (the keying moment performance plot according to gate valve is seen accompanying drawing 3), the keying moment of gate valve will reduce about 50%.The balancing pole assembly can be offset the pressure of valve rod all the time, thereby plays the effect of balance valve rod.For this reason, bring great convenience for the pipeline operation personnel, particularly run in time opening/shutting valve of urgency, can save personnel and time simultaneously, therefore operation safe compared with prior art has outstanding substantive distinguishing features and significant progressive.
Description of drawings
Fig. 1 is general structure plan view of the present invention.
Fig. 2 is general structure left view of the present invention.
Fig. 3 is that gate valve opens and closes the moment performance plot.
Fig. 4 is the schematic diagram of little axle and contiguous block and flashboard assembly joint.
Embodiment
A kind of pressure-relief type pipeline fast opening and closing device, include valve body 1, flashboard assembly 2, valve component 3, valve rod 4, handwheel 6, valve rod bracket component 5, be provided with the medium channel 11 that medium flows into and reserves in this valve body, be provided with valve component 3 in the described medium channel, this valve component comprises valve seat, described valve rod bracket component is arranged on this valve body, described valve rod 4 passes the valve rod bracket component and stretches into flashboard assembly 3 interior with being arranged on valve body in the valve body and be connected, the lifting between valve seat of valve rod and flashboard assembly is linked, described flashboard assembly comprises two big dampers 21, little flashboard 22 and fixed plate 23, both sides on the described little flashboard respectively are provided with waist shaped hole 26, in this waist shaped hole, be provided with pivot pin 24, respectively connect a big damper in described little flashboard parallel surface both sides by pivot pin, pivot pin 24 two ends have tapped hole, fix with socket head screw again, be used for spacing big damper, so by pivot pin that socket head screw is spacing in the middle of two big dampers with little flashboard, and can be up and down in the waist shaped hole scope at little flashboard.
Can be provided with six relief holes 25 on the described little flashboard, the size of this little flashboard and described big damper top are complementary, can be provided with on the described big damper nine relief holes 25 ', relief hole 25 on the big damper ' the below be provided with pod apertures, relief hole when pivot pin is positioned at the waist shaped hole lower end on the described little flashboard and the relief hole consistency from top to bottom on the big damper and progressive error are the stroke of described waist shaped hole, aperture on the vertical direction of described waist shaped hole stroke and waist shaped hole, between described two big dampers and below little flashboard, locate to arrange described fixed plate 23, this fixed plate is provided with the through hole that is complementary with described pod apertures, the connection of this fixed plate is fixing by socket head screw 25, by socket head screw with fixed plate, two big dampers are fixed together, be connected with little flashboard by valve rod between described valve rod and the flashboard assembly, valve seat is separately positioned on the both sides of flashboard assembly and firmly seals with the parallel formation of two big dampers.
When Open valve, valve rod 4 drives little flashboard 22 and moves upward and make relief hole above the little flashboard when relief hole above the big damper is communicated with, release a part of pressure after the drive big damper upwards open rapidly valve.
The bottom of described little flashboard 22 is arranged to trapezoidal.Reduce the area of little flashboard, so reach and reduce area of contact and the pressure that contacts, help the unlatching of little flashboard.
Be provided with step on the described pivot pin 24, step is arranged on the two ends of pivot pin, and on described little flashboard was arranged on and tops bar, on described big damper was arranged on and gets out of a predicament or an embarrassing situation, the length of topping bar was greater than the width of little flashboard.So realization has minimum matching gap between two big dampers and the little flashboard, and such gap helps the unlatching of little flashboard.
This device also includes balancing pole assembly 7, described balancing pole assembly includes little axle 71, this little axle is connected to the bottom of described flashboard assembly by contiguous block 76, contiguous block 76 can be connected by screw on flashboard assembly, described little axle passes the bottom of valve body simultaneously, be provided with flange seat 72 between little axle and the valve body, described contiguous block inside is provided with shoulder hole 761, the circular hole 762 that is complementary with the little axle diameter of axle that this shoulder hole lower end is communicated with that the aperture diminishes, the upper end of little axle arranges ladder block 711, this ladder block can be arranged to cylindrical, this ladder block be arranged in the shoulder hole and the bore of ladder block less than described shoulder hole greater than described circular hole 762, so both can satisfy the demand of connection, thereby skew can make the annexation of little axle and valve body bottom prize about in the skew little axle being occured again about flashboard assembly is occuring.The principle of balancing pole assembly is, drive flashboard assembly and then drive little axle lifting by valve rod, and the distance of little axle lifting is consistent with the distance of valve rod, and the interior water of valve body is cancelled out each other to the power of little axle and valve rod, thereby does not affect the effect function of whole valve body.So, when throttle down, balancing pole assembly 7 has been offset the pressure that valve rod is subject to below valve body, and valve is open and close rapider, laborsaving.
Described flange seat 72 is arranged on the valve body bottom, and little axle 71 passes this flange seat, and this flange seat is provided with O-ring seals respectively and between valve body and the little axle.Flange seat 72 is connected to the valve body bottom through two place's O-ring seals 73,75 by screw 74, and flange seat ladder circle two places are provided with respectively three road O-ring seals.Convenient effective at aspects such as annexation and mounting processs by flange seat.
Described valve body 1 bottom also is provided with lower casing 77.Lower casing 77 is connected to the valve body bottom by screw 78, and lower casing is cylindrical shell, and sealed bottom has four circular holes on the upper round seam wall and is convenient to be connected with valve body.So can protect balanced component and valve body bottom by lower casing.
Water produces powerful pressure to flashboard in valve, and the valve opening and closing difficult need to many people operate or install additional the deceleration power assisting device and need dozens of minutes to open simultaneously.Positive effect of the present invention is: when Open valve, valve rod drives little flashboard and moves upward and open relief hole and release and drive big damper behind a part of pressure and upwards open rapidly valve.Because balancing pole assembly 7 has been offset the pressure of valve rod below valve body, valve is closed rapidly downwards when throttle down.For this reason, the present invention brings great convenience to the pipeline operation personnel, particularly runs in time opening/shutting valve of urgency, can save personnel and time, operation safe simultaneously.
The above is described preferred implementation of the present invention by reference to the accompanying drawings, but the present invention is not limited to above-mentioned mode of execution, in the ken that those of ordinary skills possess, can also make a variety of changes under the prerequisite that does not break away from aim of the present invention.
Claims (7)
1. pressure-relief type pipeline fast opening and closing device, include valve body (1), flashboard assembly (2), valve component (3), valve rod (4), valve rod bracket component (5), be provided with the medium channel (11) that medium flows into and reserves in this valve body, be provided with valve component (3) in the described medium channel (11), this valve component comprises valve seat, described valve rod bracket component (5) is arranged on the valve body, described valve rod (4) passes that the valve rod bracket component stretches in the valve body and is connected with flashboard assembly (3) in being arranged on valve body, the lifting between valve seat of valve rod and flashboard assembly is linked, it is characterized in that described flashboard assembly comprises big damper (21), little flashboard (22) and fixed plate (23), both sides on the described little flashboard respectively are provided with waist shaped hole (26), in this waist shaped hole, be provided with pivot pin (24), respectively connect a big damper (21) in described little flashboard parallel surface both sides by pivot pin, described little flashboard is provided with relief hole (25), the size of this little flashboard and described big damper top are complementary, described big damper is provided with relief hole (25 '), the below of relief hole on the big damper (25 ') is provided with pod apertures, relief hole when pivot pin is positioned at the waist shaped hole upper end on the described little flashboard and the relief hole consistency from top to bottom on the big damper and progressive error are the stroke of described waist shaped hole, between described two big dampers and below little flashboard, locate to arrange described fixed plate (23), this fixed plate is provided with the through hole that is complementary with described pod apertures, be connected with little flashboard (22) by valve rod (4) between described valve rod and the flashboard assembly, valve seat is separately positioned on the both sides of flashboard assembly.
2. a kind of pressure-relief type pipeline fast opening and closing device according to claim 1 is characterized in that the bottom of described little flashboard (22) is arranged to trapezoidal.
3. a kind of pressure-relief type pipeline fast opening and closing device according to claim 1, it is characterized in that being provided with step on the described pivot pin (24), on described little flashboard was arranged on and tops bar, on described big damper was arranged on and gets out of a predicament or an embarrassing situation, the length of topping bar was greater than the width of little flashboard.
4. according to claim 1 and 2 or 3 described a kind of pressure-relief type pipeline fast opening and closing devices, it is characterized in that this device also includes balancing pole assembly (7), described balancing pole assembly includes little axle (71), this little axle is connected to the bottom of described flashboard assembly by contiguous block (76), described little axle (71) passes the bottom of valve body (1), is provided with flange seat (72) between little axle (71) and the valve body (1).
5. a kind of pressure-relief type pipeline fast opening and closing device according to claim 4, it is characterized in that described contiguous block (76) inside is provided with shoulder hole (761), the circular hole (762) that is complementary with little axle (71) diameter of axle that this shoulder hole lower end is communicated with that the aperture diminishes, the upper end of little axle arranges ladder block (711), this ladder block be arranged in the shoulder hole and the bore of ladder block less than described shoulder hole greater than described circular hole (762).
6. a kind of pressure-relief type pipeline fast opening and closing device according to claim 4 is characterized in that described flange seat (72) is arranged on valve body (1) bottom, is provided with O-ring seals respectively and between valve body and the little axle.
7. a kind of pressure-relief type pipeline fast opening and closing device according to claim 4 is characterized in that described valve body (1) bottom also is provided with lower casing (77).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210397713.7A CN102900858B (en) | 2012-10-19 | 2012-10-19 | Pressure relief type pipeline quick opening and closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210397713.7A CN102900858B (en) | 2012-10-19 | 2012-10-19 | Pressure relief type pipeline quick opening and closing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102900858A true CN102900858A (en) | 2013-01-30 |
| CN102900858B CN102900858B (en) | 2014-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210397713.7A Active CN102900858B (en) | 2012-10-19 | 2012-10-19 | Pressure relief type pipeline quick opening and closing device |
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| Country | Link |
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| CN (1) | CN102900858B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925382A (en) * | 2014-03-25 | 2014-07-16 | 南通市电站阀门有限公司 | Pilot plant sluice valve |
| CN105422890A (en) * | 2015-12-17 | 2016-03-23 | 上海诺特飞博燃烧设备有限公司 | Two-step opening-closing type gate valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100954698B1 (en) * | 2009-11-25 | 2010-04-23 | 이상록 | Water control valve of multiple functions with the flow water information means |
| CN202065513U (en) * | 2011-03-18 | 2011-12-07 | 赵安东 | High-temperature, high-pressure and high-pressure differential throttle valve |
| CN102537392A (en) * | 2012-03-06 | 2012-07-04 | 苏州道森钻采设备股份有限公司 | Pilot operated gate valve |
| CN202834140U (en) * | 2012-10-19 | 2013-03-27 | 瑞安市良精石化机械厂 | Decompression rapid pipeline actuating and shutting device |
-
2012
- 2012-10-19 CN CN201210397713.7A patent/CN102900858B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100954698B1 (en) * | 2009-11-25 | 2010-04-23 | 이상록 | Water control valve of multiple functions with the flow water information means |
| CN202065513U (en) * | 2011-03-18 | 2011-12-07 | 赵安东 | High-temperature, high-pressure and high-pressure differential throttle valve |
| CN102537392A (en) * | 2012-03-06 | 2012-07-04 | 苏州道森钻采设备股份有限公司 | Pilot operated gate valve |
| CN202834140U (en) * | 2012-10-19 | 2013-03-27 | 瑞安市良精石化机械厂 | Decompression rapid pipeline actuating and shutting device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925382A (en) * | 2014-03-25 | 2014-07-16 | 南通市电站阀门有限公司 | Pilot plant sluice valve |
| CN105422890A (en) * | 2015-12-17 | 2016-03-23 | 上海诺特飞博燃烧设备有限公司 | Two-step opening-closing type gate valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102900858B (en) | 2014-02-05 |
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| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG MEIDE MACHINERY CO., LTD. Free format text: FORMER OWNER: RUIAN LIANGJING PETROLEUM MACHINERY FACTORY Effective date: 20130524 |
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Free format text: CORRECT: ADDRESS; FROM: 325200 WENZHOU, ZHEJIANG PROVINCE TO: 325204 WENZHOU, ZHEJIANG PROVINCE |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20130524 Address after: 325204 Zhejiang Province, Ruian City Tangxia Luofeng Industrial Zone Applicant after: ZHEJIANG MEIDE MACHINERY CO., LTD. Address before: Ruian City, Wenzhou City, Zhejiang province 325200 Industrial Zone Tangxia Luofeng Applicant before: Ruian Liangjing Petrochemical Machinery Factory |
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| C14 | Grant of patent or utility model | ||
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