CN203847731U - Automatically-centered high-temperature regulating valve - Google Patents
Automatically-centered high-temperature regulating valve Download PDFInfo
- Publication number
- CN203847731U CN203847731U CN201420159168.2U CN201420159168U CN203847731U CN 203847731 U CN203847731 U CN 203847731U CN 201420159168 U CN201420159168 U CN 201420159168U CN 203847731 U CN203847731 U CN 203847731U
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- China
- Prior art keywords
- valve
- valve rod
- core head
- head
- rod
- 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 - Lifetime
Links
- 230000001105 regulatory effect Effects 0.000 title abstract description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 239000002918 waste heat Substances 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003779 heat-resistant material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
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- Lift Valve (AREA)
- Details Of Valves (AREA)
Abstract
The utility model relates to an automatically-centered high-temperature regulating valve. The valve core head of the regulating valve is a spherical valve head. The automatically-centered high-temperature regulating valve is characterized in that the valve core head and a valve rod are movably connected, the valve core head is provided with a slot, the head portion of the valve rod can extend into the slot, an adjustable space is formed between the valve rod and the slot, and the valve core head and the valve rod are fixed through a fixing device. The automatically-centered high-temperature regulating valve obtains an automatically-centering function and can move flexibly without getting stuck, thereby being particularly applicable to waste heat boilers; the modified valve rod is less prone to deformation.
Description
Technical field
The utility model relates to the high temperature adjustable valve that the automatic centering of a kind of energy can be not stuck, especially for the energy automatic centering high temperature adjustable valve of waste heat boiler.
Background technique
Waste heat boiler sets up the center tube that diameter is larger in the middle of tube bank, and center tube end is provided with modulating valve.When load has fluctuation, need the flow of the high-temperature technology gas by regulating center tube, thereby change the high-temperature technology throughput that flows through heating surface bank, reach the object that regulates Outlet Gas Temperature.In order to regulate the outlet temperature of fire tube waste heat boiler, in the time that high-temperature technology gas outlet temperature is too high, turn down the aperture of modulating valve, allow more process gas flow through tube bank, carry out abundant heat exchange, high-temperature technology gas outlet temperature is reduced; Otherwise increasing aperture, makes the part high-temperature technology road of breathing hard, and improves outlet temperature.Existing modulating valve generally adopts butterfly valve.Waste heat boiler center tube outlet temperature is often higher, and butterfly valve at high temperature easily deforms, thereby causes modulating valve stuck.If adopt spherical valve structure, modulating valve can not be stuck; But during due to this structure of employing, the valve seat of modulating valve is to be welded in waste heat boiler, and processing control valve stand endoporus and sealing surface are very difficult, and the coaxality of valve seat endoporus and boiler flange endoporus is difficult to ensure, can give to manufacture, install and use and bring very large trouble, therefore seldom adopt spherical valve structure.
Summary of the invention
The purpose of this utility model be to provide a kind of can automatic centering can be not stuck spherical valve structure waste heat boiler high temperature adjustable valve.
A kind of energy automatic centering high temperature adjustable valve, the spool of modulating valve adopts spherical valve valve head, it is characterized in that adopting live body to connect between valve core head and valve rod, valve core head has groove, the bar head of valve rod can put in groove, between valve rod and groove, there is adjustable space, between valve core head and valve rod, fixed by fixing device.
Between the valve core head of modulating valve described in the utility model and valve rod, fixed by fixing device and can be: the bar head of valve rod is had a chimb, and a spool pressing plate is set between valve core head and valve rod; Spool pressing plate can extend the chimb of the bar head of pushing down valve rod in groove, and fixes by bolt and valve core head, and valve rod and valve core head are fixed on to relative position.The utility model is not got rid of other means of fixation.
Owing to there being larger Spielpassung between valve rod and valve core head, can give the planar degrees of freedom of valve core head abundance.
Regulation valve core head of the present utility model directly contacts with high-temperature technology gas with part valve rod, therefore valve core head and/or valve rod preferably adopt the heat-resistant materials such as 06Cr25Ni20.
Waste heat boiler high temperature adjustable valve of the present utility model is preferably in and on valve rod, adds cover and have refractory liner, and radiating fin can also be housed on valve rod, to solve diastrophic problem under the high temperature of heat-resisting and valve rod of high temperature lower valve core head and part valve rod.
Adopt high temperature adjustable valve of the present utility model, have automatic centering effect, activity freely, can be not stuck, is specially adapted to waste heat boiler.Also not yielding through improved valve rod.
Brief description of the drawings
Fig. 1 is the high temperature adjustable valve schematic diagram of application a kind of energy of the present utility model automatic centering.
Fig. 2 is regulation valve core head and valve rod connection diagram.
In figure: 1, spool 2, valve rod 3, castable refractory 4, flange 5, radiating fin.
Embodiment
As shown in Figure 1 and Figure 2 for application a kind of waste heat boiler high temperature adjustable valve of the present invention, modulating valve adopts spherical valve valve core head, for the coaxality that solves valve seat endoporus and boiler flange endoporus is difficult to the problem ensureing, a spool pressing plate is set between modulating valve valve head and valve rod.Between spool pressing plate and valve core head, there is larger Spielpassung, can give the planar degrees of freedom of valve head abundance.When installation, first the bolt and nut of fixing valve head is unclamped, again bolt and nut is tightened after allowing valve core head sealing surface and sealing surface of seat by centering.
Valve core head and valve rod adopt the heat-resistant materials such as 06Cr25Ni20.
Valve rod is below flange
adding cover hasrefractory liner, is equipped with radiating fin (as shown in the figure) on the valve rod of flange top, has so not only solved automatic centering problem, has also solved diastrophic problem under the high temperature of heat-resisting and valve rod of high temperature lower valve core head and part valve rod.
Claims (6)
1. the high temperature adjustable valve of an energy automatic centering, the valve core head of modulating valve adopts spherical valve valve head, it is characterized in that adopting live body to connect between valve core head and valve rod, valve core head has groove, the bar head of valve rod can put in groove, between valve rod and groove, there is adjustable space, between valve core head and valve rod, fixed by fixing device.
2. high temperature adjustable valve according to claim 1, is characterized in that the bar head of valve rod has a chimb, and a spool pressing plate is set between valve core head and valve rod; Spool pressing plate can extend the chimb of the bar head of pushing down valve rod in groove, and fixes by bolt and valve core head, and valve rod and valve core head are fixed on to relative position.
3. high temperature adjustable valve according to claim 1, is characterized in that the material that valve core head and/or valve rod adopt is 06Cr25Ni20.
4. high temperature adjustable valve according to claim 1, is characterized in that on valve rod, adding cover has refractory liner.
5. high temperature adjustable valve according to claim 1, is characterized in that being equipped with on valve rod radiating fin.
6. high temperature adjustable valve according to claim 4, is characterized in that being equipped with on valve rod radiating fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420159168.2U CN203847731U (en) | 2014-04-03 | 2014-04-03 | Automatically-centered high-temperature regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420159168.2U CN203847731U (en) | 2014-04-03 | 2014-04-03 | Automatically-centered high-temperature regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203847731U true CN203847731U (en) | 2014-09-24 |
Family
ID=51560750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420159168.2U Expired - Lifetime CN203847731U (en) | 2014-04-03 | 2014-04-03 | Automatically-centered high-temperature regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203847731U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653795A (en) * | 2015-02-10 | 2015-05-27 | 任丘市校化机械配件有限公司 | Smashed coal pressure gasification furnace ash lock self-adjusting lower valve head |
| CN105370980A (en) * | 2015-09-16 | 2016-03-02 | 吴忠仪表有限责任公司 | Self-centering valve seat |
| CN107956900A (en) * | 2017-11-15 | 2018-04-24 | 北京航化节能环保技术有限公司 | A kind of waste heat boiler process gas regulating valve |
-
2014
- 2014-04-03 CN CN201420159168.2U patent/CN203847731U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653795A (en) * | 2015-02-10 | 2015-05-27 | 任丘市校化机械配件有限公司 | Smashed coal pressure gasification furnace ash lock self-adjusting lower valve head |
| CN104653795B (en) * | 2015-02-10 | 2017-04-12 | 河北校化机械配件有限公司 | Smashed coal pressure gasification furnace ash lock self-adjusting lower valve head |
| CN105370980A (en) * | 2015-09-16 | 2016-03-02 | 吴忠仪表有限责任公司 | Self-centering valve seat |
| CN107956900A (en) * | 2017-11-15 | 2018-04-24 | 北京航化节能环保技术有限公司 | A kind of waste heat boiler process gas regulating valve |
| CN107956900B (en) * | 2017-11-15 | 2023-07-14 | 北京航化节能环保技术有限公司 | Waste heat boiler process gas regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140924 |
|
| CX01 | Expiry of patent term |