CN202195157U - High temperature resistance needle valve - Google Patents
High temperature resistance needle valve Download PDFInfo
- Publication number
- CN202195157U CN202195157U CN2011202827720U CN201120282772U CN202195157U CN 202195157 U CN202195157 U CN 202195157U CN 2011202827720 U CN2011202827720 U CN 2011202827720U CN 201120282772 U CN201120282772 U CN 201120282772U CN 202195157 U CN202195157 U CN 202195157U
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- CN
- China
- Prior art keywords
- valve
- needle valve
- high temperature
- needle
- valve body
- 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 provides a high temperature resistance needle valve, which solves the problem that a conventional needle valve is poor in high temperature resistance and corrosion resistance. The high temperature resistance needle valve comprises a valve body and the lower end of the valve body is provided with a valve nozzle and an outlet pipe. The upper end of the valve body is provided with a valve seat. The valve seat consists of a needle valve sealing chamber, a top cover, a double-head bolt, a support disc and a nut. A valve stem is arranged inside the valve body. A sealing ring and a pressure pad is arranged between the valve stem and the needle valve sealing chamber. The high temperature resistance needle valve is characterized in that the outer side of the needle valve sealing chamber is provided with a water cooling sleeve and the water cooling sleeve is provided with a water inlet joint and a water outlet joint. A separator plate is arranged between the water inlet joint and the water outlet joint. According to the structure of the high temperature resistance needle valve, the outer side of the needle valve sealing chamber is provided with a water cooling sleeve, so that the needle valve sealing chamber is maintained at a relatively low temperature. Therefore, the high temperature resistant performance of the needle valve is improved and the needle valve can withstand high temperature gas with the temperature thereof up to 700 to 750 DEG C. The needle valve can also be used in highly corrosive bad conditions and has the advantages of good pressure resistance, reliable sealing and long service life.
Description
Technical field
The utility model belongs to a kind of valve, particularly a kind of high temperature resistant needle-valve.
Background technique
Needle-valve extensive use in each field of national economy is especially used very general in fields such as chemical industry, metallurgy.Needle-valve of the prior art has many kinds, but structure is roughly the same.It mainly is made up of valve body, valve seat, valve nozzle, valve rod, seal ring, outer pipe etc., and valve seat is positioned at the upper end of valve body, and valve nozzle and outer pipe are positioned at the lower end of valve body, and valve rod is positioned at valve body, and seal ring is between valve rod and valve seat.The subject matter that this needle-valve exists is, resistance to high temperature is poor, usually can only anti-temperature below 550 ℃, and when surpassing 550 ℃, temperature can not use.In addition, the corrosion resistance of valve and resistance to pressure are also relatively poor, and when serviceability temperature was higher, its corrosion resistance and resistance to pressure descended rapidly especially.Thereby under some high temperature and perishable condition, can't use, for example, in the purification of sponge zirconium, distillation, reduction production process, the temperature of its high temperature corrosion gas reaches 700 ℃～750 ℃, and common needle-valve can't use at all.
Summary of the invention
The technical problem that the utility model will solve is, overcomes that existing needle-valve is high temperature resistant, the problem of corrosion-resistant, and a kind of high temperature resistant needle-valve that is suitable for use under mal-condition is provided.
The utility model has a valve body, and a valve nozzle and an outer pipe are arranged in the lower end of valve body, and a valve seat is arranged in the upper end of valve body; Valve seat is made up of needle-valve closed chamber, loam cake, stud bolt, supporting disk and nut, and valve rod is installed in valve body, between valve rod and needle-valve closed chamber, seal ring and pressure pad is installed; Its special way is; In the outside of needle-valve closed chamber a water jacket is arranged, water supply connector and water output connector are arranged on the water jacket, also have a dividing plate between water supply connector and the water output connector.
Described outer pipe is obliquely installed the bottom at valve body, so that connect.
The advantage of the utility model is, at the arranged outside water jacket of needle-valve closed chamber, the needle-valve closed chamber is remained under the lower temperature; Thereby improved the resistance to high temperature of needle-valve; Can bear 700 ℃～750 ℃ high-temperature gas, and can under the mal-condition of highly corrosive, use, and resistance to pressure is good; Sealing is reliable, long service life.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is that the A of Fig. 1 is to view.
Embodiment
As depicted in figs. 1 and 2, the utility model has a valve body 11, and a valve nozzle 15 and an outer pipe 16 are arranged in the lower end of valve body 11; Described outer pipe 16 is obliquely installed the bottom at valve body 11; Be that an angle is arranged between outer pipe 16 and the valve body 11, a flange is arranged on outer pipe 16, so that connect; On outer pipe 16, also flange can be set, can directly be connected when flange not being set with spring tube; A valve seat is arranged in the upper end of valve body 11; Described valve seat is made up of needle-valve closed chamber 7, loam cake 6, stud bolt 4, supporting disk 3 and nut 2; Needle-valve closed chamber 7 is welded on the top of valve body 11; And weld together with loam cake 6, supporting disk 3 welds together with nut 2, and supporting disk 3 links together through stud bolt 4 with loam cake 6; Valve rod 1 is installed in valve body 11, and there is the screw thread that matches with nut 2 upper end of valve rod 1, because nut 2 is fixed, so during rotary valve rod 1, valve rod 1 can rotate valve body 11 in and be upper and lower mobile, thus the unlatching of realization needle-valve or close; Seal ring 18 and pressure pad 17 are installed between valve rod 1 and needle-valve closed chamber 7; The cross section of seal ring 18 is a rectangle, adopts high temperature resistant silica gel to process, and seal ring 18 adopts several with pressure pad 17; Alternate between the two setting; Gland nut 5 also is housed on loam cake 6, and gland nut 5 compresses seal ring 18, and is reliable to guarantee sealing; In the lower end of valve rod 1 valve head 14 is housed; Cover 13 in valve head 14 is equipped with; Be interference fit between the two, valve head 14 is installed on the valve rod 1 through interior cover 13, between interior cover 13 and valve rod 1, clamp ring 12 is installed also; Preventing that valve head 14 from coming off from valve rod 1, and make between valve head 14 and the valve rod 1 and can relatively rotate; Described valve head 14 matches with valve nozzle 15, realizes the unlatching of needle-valve or closes; A water jacket 10 is arranged in the outside of needle-valve closed chamber 7; Water jacket 10 welds together with the loam cake 6 and the needle-valve closed chamber 7 of valve seat; Constitute the flow channel of an annular, needle-valve closed chamber 7 is cooled off, water supply connector 9 and water output connector 19 are arranged on water jacket 10; Water supply connector 9 is connected with outlet pipe with intake pipe respectively with water output connector 19; Between water supply connector 9 and water output connector 19, also have a dividing plate 8, water supply connector 9 and water output connector 19 are separated, thereby constitute a complete flow channel.
Claims (2)
1. high temperature resistant needle-valve, it has a valve body, and a valve nozzle and an outer pipe are arranged in the lower end of valve body; A valve seat is arranged in the upper end of valve body; Valve seat is made up of needle-valve closed chamber, loam cake, stud bolt, supporting disk and nut, and valve rod is installed in valve body, between valve rod and needle-valve closed chamber, seal ring and pressure pad is installed; It is characterized in that; In the outside of needle-valve closed chamber a water jacket is arranged, water supply connector and water output connector are arranged on the water jacket, also have a dividing plate between water supply connector and the water output connector.
2. high temperature resistant needle-valve according to claim 1 is characterized in that described outer pipe is obliquely installed the bottom at valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202827720U CN202195157U (en) | 2011-08-05 | 2011-08-05 | High temperature resistance needle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202827720U CN202195157U (en) | 2011-08-05 | 2011-08-05 | High temperature resistance needle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202195157U true CN202195157U (en) | 2012-04-18 |
Family
ID=45950066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202827720U Expired - Fee Related CN202195157U (en) | 2011-08-05 | 2011-08-05 | High temperature resistance needle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202195157U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139937A (en) * | 2018-10-10 | 2019-01-04 | 特阀江苏流体机械制造有限公司 | A kind of double isolation needle-valves of super-pressure |
| CN109364642A (en) * | 2018-12-19 | 2019-02-22 | 正星科技股份有限公司 | Filter and its application method convenient for safeguarding |
-
2011
- 2011-08-05 CN CN2011202827720U patent/CN202195157U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139937A (en) * | 2018-10-10 | 2019-01-04 | 特阀江苏流体机械制造有限公司 | A kind of double isolation needle-valves of super-pressure |
| CN109364642A (en) * | 2018-12-19 | 2019-02-22 | 正星科技股份有限公司 | Filter and its application method convenient for safeguarding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20120805 |