CN203202284U - Automatically-decoking plug valve - Google Patents
Automatically-decoking plug valve Download PDFInfo
- Publication number
- CN203202284U CN203202284U CN 201320073564 CN201320073564U CN203202284U CN 203202284 U CN203202284 U CN 203202284U CN 201320073564 CN201320073564 CN 201320073564 CN 201320073564 U CN201320073564 U CN 201320073564U CN 203202284 U CN203202284 U CN 203202284U
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- CN
- China
- Prior art keywords
- valve
- decoking
- faucet body
- plug
- tile
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an automatically-decoking plug valve. The automatically-decoking plug valve comprises valve body, a valve deck, a valve rod, a plug cock body, a sealing piece and a mounting piece. The automatically-decoking plug valve is characterized in that tile-shaped valve seats mutually matched with the plug cock body are arranged on an inlet channel and an outlet channel of the valve body respectively, the edges of the two sides of each tile-shaped valve seat is made to be of a scraper-type structure with an acute angle, and a spring is arranged between the contact faces, in the perpendicular direction, of tile-shaped valve seat and the channel of the valve body. In the opening or closing process of the valve, coking material bonded on the surface of the plug cock body can be scraped by the scrapers on the edges of the two sides of each tile-shaped valve seat, abrasion of the sealing face is reduced, sealing performance is improved, and service life of the product is prolonged. Moreover, the spring is arranged between one tile-shaped valve seat and the valve body, high-temperature expansion damage of the plug cock body is prevented, and the automatically-decoking plug valve is suitable for the working conditions of high temperature, high pressure, abrasion and corrosion in the petroleum industry, the chemical engineering industry and other industries.
Description
Technical field
The utility model relates to a kind of valve, particularly about a kind of hard sealing stopcock.The utility model 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 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 purpose of this utility model is the deficiency that exists at prior art, and a kind of faucet body surface coking material that can scrape off in opening-closing process is provided, and good seal performance, long service life, is suitable for the automatic decoking stopcock that worst hot case uses.
The technical solution of the utility model 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 construction bolt at Gland arranges the butterfly spring assembly.
In above technological scheme, the passage two ends of faucet body arrange one deck hard wear-resistant material.
The utility model has the advantages that and 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 structure cut-away view of the present utility model.
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 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.At valve body 8 support 24 is installed.
The two-port position arranges 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 at the import and export passage place of valve body (8) watt shape valve seat (15) that cooperatively interacts with faucet body (14), 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 (14) 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 the construction bolt (19) in Gland (18) arranges butterfly spring assembly (21).
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) arranges 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) arranges 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 |
|---|---|---|---|
| CN 201320073564 CN203202284U (en) | 2013-02-02 | 2013-02-02 | Automatically-decoking plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320073564 CN203202284U (en) | 2013-02-02 | 2013-02-02 | Automatically-decoking plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203202284U true CN203202284U (en) | 2013-09-18 |
Family
ID=49146393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320073564 Expired - Fee Related CN203202284U (en) | 2013-02-02 | 2013-02-02 | Automatically-decoking plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203202284U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917220A (en) * | 2016-10-11 | 2018-04-17 | 江阴林格科技有限公司 | Corrosion-resistant plug valve |
-
2013
- 2013-02-02 CN CN 201320073564 patent/CN203202284U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917220A (en) * | 2016-10-11 | 2018-04-17 | 江阴林格科技有限公司 | Corrosion-resistant plug valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20130918 Termination date: 20170202 |