CN101131214A - Automatic decoking stopcock - Google Patents
Automatic decoking stopcock Download PDFInfo
- Publication number
- CN101131214A CN101131214A CNA2007100715790A CN200710071579A CN101131214A CN 101131214 A CN101131214 A CN 101131214A CN A2007100715790 A CNA2007100715790 A CN A2007100715790A CN 200710071579 A CN200710071579 A CN 200710071579A CN 101131214 A CN101131214 A CN 101131214A
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- valve
- faucet body
- decoking
- automatic
- stopcock
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Abstract
The present invention relates to one kind of automatically decoking cock valve, which includes one valve body, one valve cover, one valve rod, one cock body, sealing members and installing members. The automatically decoking cock valve features the tile-shaped valve seats matching the cock body set in the inlet passage and the outlet passage of the valve body and with acute edges to form scraper structure, and the spring set between one of the tile-shaped valve seats and the valve body passage. During opening and closing the valve, the scraper structure can eliminate the coking in the surface of the cock body to reduce wear of the sealing surface, raise sealing performance and prolong the service life of the valve. In addition, the spring can avoid high temperature jamming of the cock body. The automatically decoking cock valve is suitable for operation in high temperature, high pressure, high wear and corrosive conditions in petroleum, chemical industry and other industry.
Description
Technical field
The present invention relates to a kind of valve, particularly about a kind of hard sealing stopcock.The present invention is applicable to high temperature, high pressure, abrasiveness, the corrosivity operating mode of industries such as oil, chemical industry.
Background technique
Stopcock has hard sealing and soft sealing structure, and soft seal stopcock Applicable temperature is low, seals stopcock firmly and can be used in worst hot case.Yet, common hard sealing stopcock, because the area of contact between faucet body and the valve body is big, between the two frictional force is big in the opening-closing process, and open and close torque is big, and wearing and tearing are big between the sealing surface.For this reason, the patent No. is 002169800 hard sealing self lubricating plug valve, between valve seal conical bore and faucet body surface, make the greasing groove, inject seal gease, realize machinery and grease double seal, keep the lubricity between the sealing surface, reduce keying frictional force and moment of torsion between the sealing surface, improve sealability.But when being used in the coking capacity medium operating mode of industries such as oil, chemical industry, in the valve opening and closing process, the coking material that is bonded in the faucet body surface will produce wearing and tearing to sealing surface, influence the sealability and the working life of valve.And under worst hot case, Yin Gaowen expands and stuck between faucet body and the valve body, can not normally open and close, and uses so be not suitable for worst hot case.
Summary of the invention
The objective of the invention is the deficiency that exists at prior art, a kind of faucet body surface coking material that can scrape off in opening-closing process is provided, good seal performance, long service life, be suitable for the automatic decoking stopcock that worst hot case uses.
Technological scheme of the present invention comprises valve body, valve gap, valve rod, faucet body and Sealing and assembling set, mainly be to be provided with watt shape valve seat that cooperatively interacts with faucet body respectively at the import and export passage place of valve body, the scraper type structure with acute angle is made in this watt shape valve seat both sides of the edge, is provided with spring between the surface of contact on one of them watt shape valve seat and the valve channel Vertical direction.
In above technological scheme, the lower end surface of faucet body is shaped on the sphere jacking block, and the sphere push rod of this sphere jacking block and its below cooperatively interacts, and the sphere push rod is fixedly mounted in the valve gap, and its upper-lower position in valve gap can be regulated.
In above technological scheme, adopt the auto-compensating packing seal structure between valve rod outer peripheral surface and the valve body; Described auto-compensating packing seal structure comprises graphite packing, steel wire ring and Gland and automatic control tegulatingdevice thereof; The steel wire ring is arranged at the two ends up and down of graphite packing, closely contacts with the valve rod outer peripheral surface; Automatic control tegulatingdevice is formed for the butterfly spring assembly is set on the construction bolt of Gland.
In above technological scheme, the passage two ends of faucet body are provided with one deck hard wear-resistant material.
Advantage of the present invention is to adopt the sealing that cooperatively interacts of watt shape valve seat and faucet body, watt shape valve seat both sides of the edge are made the scraper type structure with acute angle and can scrape off the coking material that is bonded in the faucet body surface in the valve opening and closing processes, reduce the wearing and tearing of sealing surface, improve sealability, prolong product working life.And, be provided with spring between one of them watt shape valve seat and the valve body, it is dead to prevent that faucet body high temperature from expanding, and can be used for worst hot case.
Description of drawings
Fig. 1 is a structure cut-away view of the present invention.
Embodiment
Automatic decoking stopcock as shown in Figure 1, comprise valve body 8, valve gap 5, valve rod 17, faucet body 14 and Sealing and assembling set, be provided with watt shape valve seat 15 that cooperatively interacts with faucet body 14 respectively at the import and export passage place of valve body 8, the scraper type structure with acute angle is made in this watt shape valve seat 15 both sides of the edge, be provided with spring 25 between the surface of contact on one of them watt shape valve seat 15 and the valve body 8 channel vertical directions, this spring 25 is a butterfly spring.Watt shape valve seat 15 has the interior circular arc that cooperatively interacts with faucet body 14 outer cylinder surfaces, and the acute angle scraper of its both sides of the edge can scrape off the coking material that is bonded in the faucet body surface in the valve opening and closing process.
The lower end surface of faucet body 14 is shaped on sphere jacking block 13, this sphere jacking block 13 cooperatively interacts with the sphere push rod 12 of its below, the protruding sphere of sphere jacking block 13 cooperatively interacts with the concave spherical surface circular arc on sphere push rod 12 tops and contacts, realization can reduce the friction of faucet body 14 bottom support faces to the vertical support of faucet body 14.Sphere push rod 12 is fixedly mounted in the valve gap 5, be connected with adopting screw-thread fit between the valve gap 5, its upper-lower position in valve gap 5 can be regulated, cooperation between sphere jacking block 13 and the sphere push rod 12 wearing and tearing are compensated, prevent that wearing and tearing move down faucet body 14 positions between sphere jacking block 13 and the sphere push rod 12, cause sealability to descend.
The auto-compensating packing seal structure is adopted in valve rod 17 sealings, this auto-compensating packing seal structure comprises graphite packing 23, Gland 18, steel wire ring 22, construction bolt 20, nut 19, butterfly spring assembly 21 is installed, steel wire ring 22 is arranged at the two ends up and down of graphite packing 23, closely contact with valve rod 17 outer peripheral surfaces, butterfly spring assembly 21 is installed in to be installed between nut 19 and the Gland 18.When repeating to open and close when making graphite packing 23 wearing and tearing, can compress steel wire ring 22 by butterfly spring assembly 21, compensate packing seal automatically.Adopt the auto-compensating packing seal structure between sphere push rod 12 and the valve gap 5, this auto-compensating packing seal structure comprises graphite packing 7 down, following Gland 4, following steel wire ring 6,11, screw rod 1, nut 2, following butterfly spring assembly 3, following steel wire ring 6,11 is arranged at down the two ends up and down of graphite packing 7, repays stuffing box packing between formula sphere push rod 12 and the valve gap 5 automatically.Valve gap 5 is fixedly installed on the valve body 8 by bolt 10, is provided with seal ring 11 between the two.One support 24 is installed on valve body 8.
The two-port position is provided with one deck hard wear-resistant material in the outer peripheral surface coated with hard high-abrasive material of faucet body 14, the passage of faucet body 14.
Be connected by slippage link 16 between valve rod 17 and the faucet body 14, be provided with the rectangular projection in these slippage link 16 lower planes, be provided with in the last plane and become 90 ° rectangular recess with the rectangular projection, groove fit on its rectangular projection and the faucet body 14 in the plane is connected, and in this groove, can move, rectangular recess on valve rod 17 and the slippage link 16 in the plane is connected, and can in this rectangular recess, move, can solve valve rod 17 and faucet body 14 mismatch errors, make valve rod 17 and faucet body 14 when opening and closing, not have jam, reduce opening and closing torque.
When being used for medium temperature less than 200 ℃, when corrosivity, abrasiveness operating mode, can carry out the greasing lubrication and seal to valve rod and valve seat, improve sealability and life-span.
Claims (8)
1. automatic decoking stopcock, comprise valve body (8), valve gap (5), valve rod (17), faucet body (14) and Sealing and assembling set, it is characterized in that being provided with respectively watt shape valve seat (15) that cooperatively interacts with faucet body (14) at the import and export passage place of valve body (8), the scraper type structure with acute angle is made in this watt shape valve seat (15) both sides of the edge, is provided with spring (25) between the surface of contact on one of them watt shape valve seat and valve body (8) the channel vertical direction.
2. automatic decoking stopcock according to claim 1, the lower end surface that it is characterized in that faucet body (8) is shaped on sphere jacking block (13), this sphere jacking block (13) cooperatively interacts with the sphere push rod (12) of its below, sphere push rod (12) is fixedly mounted in the valve gap (5), and its upper-lower position in valve gap (5) can be regulated.
3. automatic decoking stopcock according to claim 1 and 2 is characterized in that adopting between valve rod (17) outer peripheral surface and the valve body (8) the auto-compensating packing seal structure; Described auto-compensating packing seal structure comprises graphite packing (23), steel wire ring (22) and Gland (18) and automatic control tegulatingdevice thereof; Steel wire ring (22) is arranged at the two ends up and down of graphite packing (23), closely contacts with valve rod (17) outer peripheral surface; Automatic control tegulatingdevice is formed for butterfly spring assembly (21) is set on the construction bolt (19) of Gland (18).
4. automatic decoking stopcock according to claim 1 and 2 is characterized in that the interior two-port position of passage of faucet body (14) is provided with one deck hard wear-resistant material.
5. automatic decoking stopcock according to claim 1 and 2 is characterized in that being connected by slippage link (16) between valve rod (17) and the faucet body (14).
6. automatic decoking stopcock according to claim 3 is characterized in that the interior two-port position of passage of faucet body (14) is provided with one deck hard wear-resistant material.
7. automatic decoking stopcock according to claim 3 is characterized in that being connected by slippage link (16) between valve rod (17) and the faucet body (14).
8. automatic decoking stopcock according to claim 4 is characterized in that being connected by slippage link (16) between valve rod (17) and the faucet body (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100715790A CN101131214A (en) | 2007-09-29 | 2007-09-29 | Automatic decoking stopcock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100715790A CN101131214A (en) | 2007-09-29 | 2007-09-29 | Automatic decoking stopcock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101131214A true CN101131214A (en) | 2008-02-27 |
Family
ID=39128572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100715790A Pending CN101131214A (en) | 2007-09-29 | 2007-09-29 | Automatic decoking stopcock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101131214A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865303A (en) * | 2010-06-13 | 2010-10-20 | 无锡智能自控工程有限公司 | Valve ball mandrel device |
| CN104315182A (en) * | 2014-11-07 | 2015-01-28 | 四川精控阀门制造有限公司 | Pressure balanced oil sealing plug valve and centering adjustment mechanism |
| CN104315185A (en) * | 2014-09-01 | 2015-01-28 | 浙江永盛仪表有限公司 | Double-scraper ultra-hard sealing ball valve |
| CN105065701A (en) * | 2015-08-05 | 2015-11-18 | 浙江福瑞科流控机械有限公司 | Hard sealing lifting type brake plug valve and control method thereof |
| CN106812964A (en) * | 2017-04-07 | 2017-06-09 | 李祥庆 | A kind of band scraper stop valve assembly method |
| CN106870812A (en) * | 2017-04-26 | 2017-06-20 | 张新丰 | A kind of band rotary drag stop valve application method |
| CN107061751A (en) * | 2017-04-26 | 2017-08-18 | 张新丰 | A kind of band rotary drag stop valve assembly method |
| CN111120682A (en) * | 2020-02-21 | 2020-05-08 | 戴学祥 | Plug valve |
| CN111779857A (en) * | 2020-07-21 | 2020-10-16 | 亿川科技(成都)有限责任公司 | Angle stroke waste water regulating valve |
| CN113389911A (en) * | 2021-06-17 | 2021-09-14 | 浙江福瑞科流控机械有限公司 | High-pressure full-bore forged steel plug valve and working method thereof |
-
2007
- 2007-09-29 CN CNA2007100715790A patent/CN101131214A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865303A (en) * | 2010-06-13 | 2010-10-20 | 无锡智能自控工程有限公司 | Valve ball mandrel device |
| CN104315185A (en) * | 2014-09-01 | 2015-01-28 | 浙江永盛仪表有限公司 | Double-scraper ultra-hard sealing ball valve |
| CN104315182A (en) * | 2014-11-07 | 2015-01-28 | 四川精控阀门制造有限公司 | Pressure balanced oil sealing plug valve and centering adjustment mechanism |
| CN105065701A (en) * | 2015-08-05 | 2015-11-18 | 浙江福瑞科流控机械有限公司 | Hard sealing lifting type brake plug valve and control method thereof |
| CN106812964A (en) * | 2017-04-07 | 2017-06-09 | 李祥庆 | A kind of band scraper stop valve assembly method |
| CN106870812A (en) * | 2017-04-26 | 2017-06-20 | 张新丰 | A kind of band rotary drag stop valve application method |
| CN107061751A (en) * | 2017-04-26 | 2017-08-18 | 张新丰 | A kind of band rotary drag stop valve assembly method |
| CN106870812B (en) * | 2017-04-26 | 2019-01-18 | 盐城市高中压阀门有限公司 | A kind of band rotary drag shut-off valve application method |
| CN107061751B (en) * | 2017-04-26 | 2019-02-15 | 张新丰 | A kind of band rotary drag shut-off valve assembly method |
| CN111120682A (en) * | 2020-02-21 | 2020-05-08 | 戴学祥 | Plug valve |
| CN111779857A (en) * | 2020-07-21 | 2020-10-16 | 亿川科技(成都)有限责任公司 | Angle stroke waste water regulating valve |
| CN113389911A (en) * | 2021-06-17 | 2021-09-14 | 浙江福瑞科流控机械有限公司 | High-pressure full-bore forged steel plug valve and working method thereof |
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