CN203131077U - Multiple sealing flat gate valve - Google Patents
Multiple sealing flat gate valve Download PDFInfo
- Publication number
- CN203131077U CN203131077U CN 201320099726 CN201320099726U CN203131077U CN 203131077 U CN203131077 U CN 203131077U CN 201320099726 CN201320099726 CN 201320099726 CN 201320099726 U CN201320099726 U CN 201320099726U CN 203131077 U CN203131077 U CN 203131077U
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- valve
- support
- seat
- valve body
- packing
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- Expired - Fee Related
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Abstract
A multiple sealing flat gate valve is composed of a valve body part portion, a middle transmission portion and a sealing portion. The valve body part portion comprises a valve body, a bonnet, a support, a stud bolt, a nut, a valve seat and a wave spring; the middle transmission portion comprises a power transmission assembly and an actuating element which is a flashboard, and the power transmission assembly is composed of a hand wheel and a valve rod; and the sealing portion comprises a valve seat seal ring, a sealing gasket, a support seal ring, a packing seat, combined packing and a packing gland. The multiple sealing is achieved by arranging the valve seat seal ring between the valve body and the valve seat, the support seal ring between the valve rod and the support, the seal gasket on the assembling contact surface of the valve body and the bonnet, and the packing seat, the combined packing and the packing gland inside a hollow space formed by the bonnet and the valve rod. Therefore, the pressure inside a valve cavity can be balanced quickly, and the best sealing performance can be achieved, besides, the valve seat is more close to a valve plate, the abrasion is reduced, and the sealing performance of the valve body and the valve seat is improved.
Description
Technical field
The utility model belongs to valve and makes the field, is specifically related to a kind of multi-sealed plate valve.
Background technique
Flap type is the abbreviation of Parallel gate valve Parallel slide valve, be a kind of in the valve, wherein be divided into single lock flap type and double-gate flap type, gate valve is mainly used in the liquid flow direction that the control grains of sand, dirt mix, connect and cut off liquid stream, so gate valve is subjected to the erosion of circulating liquid easily and washes away.Gate valve is widely used in the occasion of high-sulfur oils gas field, long-distance transport pipes, the construction of natural gas fields, natural gas purification and long defeated petroleum production, product oil conveying, and is dangerous big because the medium of its conveying is inflammable and explosive, so very high to the sealing requirements of valve.Conventional ordinary flat gate valve can occur leaking under the unsettled occasion of high and low pressure because it can't reach forced seal by self structure, though conventional common wedge action valve reliability is high, but valve plate is subjected to washing away of permeable medium easily, and working life is shorter.Therefore, need a kind of advantage that has merged traditional ordinary flat gate valve and wedge action valve in the production, sealability strengthens, and is simple in structure, safe and reliable, the flap type that working life is long.
Summary of the invention
At the defective that exists in the existing technology, the purpose of this utility model is to provide a kind of double-sealing flap type, employing is at sealing surface of seat valve design seat seal and valve seat insert double sealing, under high-risk medium water conservancy diversion working environment, rely on this structure to realize forced seal, safe and reliable during with assurance work, the while can also be taken into account the working life of valve plate and valve seat.
The utility model is achieved through the following technical solutions.
A kind of multi-sealed plate valve, formed by valve body piece part, middle drive part and hermetic unit, valve body piece partly comprises valve body, valve gap, support, studding bolt, nut and valve seat and wavy spring, valve seat is embedded among the valve body, wavy spring is installed between valve seat and the valve body, is connected by the studding screw bolt and nut between valve gap and the valve body, is connected together by screw thread with support simultaneously, there is Cock screw to fix between support and the valve gap
Middle drive part comprises power transmitting assembly and action element---flashboard, power transmitting assembly is made up of handwheel, valve rod, handwheel is installed on valve rod top, Stem Mut in the support is sleeved on the valve rod, between handwheel and the valve rod top dust-proof cover and guard shield are installed, grease pouring valve is installed in a side of valve gap, and lubricating cup is installed in a side of support.
Valve rod is supported in rack inner wall by plane bearing, be connected by leading screw between action element----flashboard and the valve rod, flashboard cooperates with valve body and moves up and down, hermetic unit is embodied in the connection procedure of each several part, comprise valve seat insert, gasket ring, the support seal ring, Packing seat, combined packing, and Gland, valve seat insert is installed between valve body and the valve seat, gasket ring is installed in valve body and valve gap assembling surface of contact, Packing seat, combined packing, and Gland is installed in the hollow space that valve gap and valve rod form, and the support seal ring is installed between valve rod and the support.
Described in the utility model multi-sealed, be to adopt valve seat insert to be installed between valve body and the valve seat, the support seal ring is installed between valve rod and the support, and gasket ring is installed in valve body and valve gap assembling surface of contact, and Packing seat, combined packing and Gland are installed in multi-sealed in the hollow space that valve gap and valve rod form, make the quick balance of valve pocket pressure, realize best sealability, simultaneously, valve seat is pressed close to valve plate more, reduce wear, increase the sealability of valve plate and valve seat.
The enforcement the beneficial effects of the utility model are:
Because filler chamber directly is located at valve gap top, Packing seat is housed in it, combined packing, and compress by Gland, in the support on the Gland, bearing is housed, oil nozzle is installed in a side of support, grease pouring valve is installed in a side of valve gap, and valve seat insert is installed between valve body and the valve seat, and the support seal ring is installed between valve rod and the support, gasket ring is installed in valve body and valve gap assembling surface of contact, Packing seat, combined packing, and Gland is installed in multi-sealed in the hollow space that valve gap and valve rod form, makes the quick balance of valve pocket pressure, realizes best sealability, simultaneously, valve seat is pressed close to valve plate more, reduces wear, and increases the sealability of flashboard and valve seat, the drift sand of prevention under middle cavity pressure is back to valve base surface, to improve sealability and the working life of valve.Has advantage such as reliable easy and safe to operate.Because flashboard is installed in the valve body internal upper part, be connected with the valve rod lower end again, the consumptive material of same specification valve is reduced, the keying moment during it uses also can reduce.Therefore, the utlity model has simple in structure, reliable, good airproof performance, characteristics such as volume is little, in light weight, and cost of production is lower.
Description of drawings
Fig. 1 is overall structure erection drawing of the present utility model;
In Fig. 1: 1-valve body, 2-valve seat insert, 3-valve seat, 4-wavy spring, 5-flashboard, 6-grease pouring valve, 7-valve gap, 8-valve rod, 9-Packing seat, 10-combined packing, 11-Gland, 12-Stem Mut, 13-plane bearing, 14-gasket ring, 15-studding bolt, 16-nut, 17-Cock screw, 18-support, 19-lubricating cup, 20-support seal ring, 21-dust-proof cover, 22-handwheel,, the 23-guard shield.
Specific embodiments
Below in conjunction with Figure of description the utility model is described in further details.
A kind of multi-sealed plate valve, comprise valve body 1, valve seat insert 2, valve seat 3, wavy spring 4, flashboard 5, grease pouring valve 6, valve gap 7, valve rod 8, Packing seat 9, combined packing 10, Gland 11, Stem Mut 12, plane bearing 13, gasket ring 14, studding bolt 15, nut 16, Cock screw 17, support 18, lubricating cup 19, support seal ring 20, dust-proof cover 21, handwheel 22, guard shield 23, it is characterized in that described valve seat 3 is embedded among the valve body 1, wavy spring 4 is installed between valve seat 3 and the valve body 1, be connected with nut 16 by studding bolt 15 between valve gap 7 and the valve body 1, be connected together by screw thread with support 18 simultaneously, there is Cock screw 17 fixing between support 18 and the valve gap 7, handwheel 22 is installed on valve rod 8 tops, Stem Mut 12 in the support 18 is sleeved on the valve rod 8, between handwheel 22 and valve rod 8 tops dust-proof cover 21 and guard shield 23 are installed, grease pouring valve 6 is installed in a side of valve gap 7, and lubricating cup 19 is installed in a side of support 18.
Valve rod 8 is supported in support 18 inwalls by plane bearing 13, be connected by leading screw between flashboard 5 and the valve rod 8, flashboard 5 cooperates with valve body 1 and moves up and down, valve seat insert 2 is installed between valve body 1 and the valve seat 3, gasket ring 14 is installed in the assembling surface of contact of valve body 1 and valve gap 7, Packing seat 9, combined packing 10 and Gland 11 are installed in the hollow space of valve gap 7 and valve rod 8 formation, and support seal ring 20 is installed between valve rod 7 and the support 18.
That describes in the utility model specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.
Claims (1)
1. multi-sealed plate valve, comprise valve body, valve seat insert, valve seat, wavy spring, flashboard, grease pouring valve, valve gap, valve rod, Packing seat, combined packing, Gland, Stem Mut, plane bearing, gasket ring, the studding bolt, nut, Cock screw, support, lubricating cup, the support seal ring, dust-proof cover, handwheel, guard shield, it is characterized in that described valve seat is embedded among the valve body, wavy spring is installed between valve seat and the valve body, be connected by the studding screw bolt and nut between valve gap and the valve body, be connected together by screw thread with support simultaneously, there is Cock screw to fix between support and the valve gap, handwheel is installed on valve rod top, Stem Mut in the support is sleeved on the valve rod, between handwheel and the valve rod top dust-proof cover and guard shield are installed, grease pouring valve is installed in a side of valve gap, lubricating cup is installed in a side of support, valve rod is supported in rack inner wall by plane bearing, be connected by leading screw between flashboard and the valve rod, valve seat insert is installed between valve body and the valve seat, gasket ring is installed in the assembling surface of contact of valve body and valve gap, Packing seat, combined packing, and Gland is installed in the hollow space that valve gap and valve rod form, and the support seal ring is installed between valve rod and the support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320099726 CN203131077U (en) | 2013-02-22 | 2013-02-22 | Multiple sealing flat gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320099726 CN203131077U (en) | 2013-02-22 | 2013-02-22 | Multiple sealing flat gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203131077U true CN203131077U (en) | 2013-08-14 |
Family
ID=48939057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320099726 Expired - Fee Related CN203131077U (en) | 2013-02-22 | 2013-02-22 | Multiple sealing flat gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203131077U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015610A (en) * | 2016-08-11 | 2016-10-12 | 江苏华展石油机械有限公司 | Non-rising stem flat gate valve |
| CN106224564A (en) * | 2016-08-29 | 2016-12-14 | 约翰斯顿流体科技（无锡）有限公司 | A kind of valve of controllable flow speed |
-
2013
- 2013-02-22 CN CN 201320099726 patent/CN203131077U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015610A (en) * | 2016-08-11 | 2016-10-12 | 江苏华展石油机械有限公司 | Non-rising stem flat gate valve |
| CN106224564A (en) * | 2016-08-29 | 2016-12-14 | 约翰斯顿流体科技（无锡）有限公司 | A kind of valve of controllable flow speed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU TIANTAI VALVE CO., LTD. Free format text: FORMER NAME: JIANGSU TIANTAI POWER STATION VALVE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 224400 Yancheng City District, Funing County, Jiangsu Province, B Patentee after: Jiangsu Tiantai Valve Co., Ltd. Address before: 224400 Yancheng City District, Funing County, Jiangsu Province, B Patentee before: Jiangsu Tiantai Power Station Valve Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20170222 |