CN204284462U - A kind of hydraulic drive high-temperature thermal valve - Google Patents
A kind of hydraulic drive high-temperature thermal valve Download PDFInfo
- Publication number
- CN204284462U CN204284462U CN201420767854.8U CN201420767854U CN204284462U CN 204284462 U CN204284462 U CN 204284462U CN 201420767854 U CN201420767854 U CN 201420767854U CN 204284462 U CN204284462 U CN 204284462U
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- China
- Prior art keywords
- valve rod
- flap
- valve
- thermal
- hydraulic drive
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- Expired - Fee Related
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Abstract
A kind of hydraulic drive high-temperature thermal valve, comprise valve rod, flap, valve body, valve gap, described valve rod and flap are provided with cooling system; Be provided with valve rod water cooling tube in described valve rod, this valve rod water cooling tube inner chamber is water inlet flow channel and gap between outer wall and valve rod forms backwater runner, and the underpart of this valve rod water cooling tube is provided with water outlet; Described flap forms by flap upper and lower part is affixed, this flap top and valve rod head affixed, flap lower lumen is circulating water pool, flap current deflecting plate above the water outlet that this circulating water pool is fixedly connected on valve rod water cooling tube is divided into cooling chamber and refluxing chamber, the water outlet of valve rod water cooling tube in this cooling chamber, described refluxing chamber and backwater flow passage.The utility model flap have employed cooling structure, achieves the reliable sealing of flap for a long time under the high temperature action of 900K.
Description
Technical field
The utility model belongs to technical field of valve manufacturing, is specifically related to a kind of hydraulic drive high-temperature thermal valve used safely under high temperature ultra high speed operating mode.
Background technique
Along with the develop rapidly of science and technology, hydraulic drive high-temperature thermal valve application area is increasingly extensive, and the production of chemically industry, to national defence scientific research unit, all needs the High temperature valve of various different pressures, bore, performance.But these valve existing structures design flap does not cool, and flap is heated for a long time and causes flap temperature too high, and seal failure particularly cannot meet the requirement of high temperature hypervelocity wind tunnel to such valve.
Model utility content
The utility model provides a kind of hydraulic drive high-temperature thermal valve of long-term energy reliable sealing under 900K high temperature action.
For this reason, the technological scheme adopted is:
A kind of hydraulic drive high-temperature thermal valve, comprise valve rod, flap, valve body, valve gap, described valve rod and flap are provided with cooling system; Be provided with valve rod water cooling tube in described valve rod, this valve rod water cooling tube inner chamber is water inlet flow channel and gap between outer wall and valve rod forms backwater runner, and the underpart of this valve rod water cooling tube is provided with water outlet; Described flap forms by flap upper and lower part is affixed, this flap top and valve rod head affixed, flap lower lumen is circulating water pool, flap current deflecting plate above the water outlet that this circulating water pool is fixedly connected on valve rod water cooling tube is divided into cooling chamber and refluxing chamber, the water outlet of valve rod water cooling tube in this cooling chamber, described refluxing chamber and backwater flow passage.
It is high that the circulating water pool of described flap lower lumen has center, the structure that periphery is low.
The bottom of described flap bottom is provided with flap thermal-protective coating.
The body of the lower end of described flap bottom is processed with guiding isolation annular groove.
Described flap top and valve rod the head therefrom heart outwards pass through the conical surface, ball face sealing successively.
Described valve rod is made up of upper and lower valve rod and valve rod head, connected, and the chuck that leads is joined with the guide-track groove be arranged on support is sliding between this upper and lower valve rod by guiding chuck.
Described valve flowing channel, inner chamber are provided with valve body thermal-protective coating I, valve body thermal-protective coating II, and this valve body thermal-protective coating I, valve body thermal-protective coating II are liner thermal-protective coating; The internal layer of this liner thermal-protective coating has hole.
Described valve gap is provided with the second heat-proof device, and this second heat-proof device comprises setting sleeve and pressure balance plate, and this setting sleeve is fixed on valve gap, and thermal-protective material is filled between described setting sleeve and pressure balance plate; This pressure balance plate has through hole.
The utility model flap have employed cooling structure, achieves the reliable sealing of flap for a long time under the high temperature action of 900K.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is stem guiding structure enlarged diagram in Fig. 1;
Fig. 3 is the schematic diagram of flap cooling structure in Fig. 1;
In figure: 1. in flap current deflecting plate 6. flap top 7., welding neck flange I 2. valve body thermal-protective coating I 3. flap thermal-protective coating 4. flap bottom 5. valve rod head 8. valve rod water cooling tube 9. main valve body 10. valve body thermal-protective coating II 11. valve body thermal-protective coating dunnage 12 welding neck flange II 13. second heat-proof device 14. octangonal ring 15. in flange stud 16. flange nut 17. valve rod cooling system 18. valve gap 19. lower valve rod 20. support 21. upper valve rod 22. lead chuck 23. oil hydraulic cylinder 24. guiding isolation annular groove
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
The utility model is applied in the construction project of high temperature hypervelocity wind tunnel, is arranged between storage heater and test section, is used to the key equipment reducing heat transmission, adopts Angle Stop valves structure.
The utility model valve body adopts forging, and adopt complete penetraction and fusion in welding assembly welding by main body and three hubbed flanges, whole weld seam requires radiographic inspection; Valve body and valve gap adopt Flange joint, metallic packing ring seal form.
A kind of hydraulic drive high-temperature thermal valve, comprise valve rod, flap, valve body, valve gap, described valve rod and flap are provided with cooling system; Be provided with valve rod water cooling tube 8 in described valve rod, this valve rod water cooling tube 8 inner chamber is water inlet flow channel and gap between outer wall and valve rod forms backwater runner, and the underpart of this valve rod water cooling tube 8 is provided with water outlet 25; Described flap affixedly to be formed by flap upper and lower part 6,4, this flap top 6 and valve rod head 7 affixed, flap bottom 4 inner chamber is circulating water pool, flap current deflecting plate 5 above the water outlet 25 that this circulating water pool is fixedly connected on valve rod water cooling tube 8 is divided into cooling chamber and refluxing chamber, the water outlet 25 of valve rod water cooling tube 8 is in this cooling chamber, described refluxing chamber and backwater flow passage.Valve rod water cooling tube 8 inner chamber is communicated with the waterexit end of valve rod cooling system 17, and the backwater runner on valve rod is communicated with the backwater end of valve rod cooling system 17.
Valve rod directly contacts with high temperature media and bears medium active force, it is main stressed member, not only to ensure will there be enough intensity under high temperature on material selection, structural design also will ensure will have enough intensity under high temperature, at valve rod built-in water-cooling pipe, cooling water flows into from valve rod top cooling nozzle and flows into stem lower portion through cooling tube, flow out through cooling water outlet mouth by outside cooling tube and in valve rod endoporus again, constantly circulate at high operating temperatures like this, ensure that valve rod is at high temperature indeformable, thus improve valve rod intensity, reduce valve rod high temperature deformation.
It is high that the circulating water pool of described flap bottom 4 inner chamber has center, the structure that periphery is low.Owing to being in normally off when the utility model uses, flap is Long contact time high temperature media before opening, so flap has selected high-temperature steel A182 F310H to manufacture, and the sealing surface of flap is sphere.In order to reduce flap temperature, flap is set as upper and lower two halves composition, and second is set as the cavity on mountain peak, is provided with circulating water pool in the cavity of mountain peak shape, is provided with fan-shaped current deflecting plate in pond, and the cavity of mountain peak shape strengthens the pressure of current, and the flow velocity of circulating water is accelerated; What fan-shaped current deflecting plate made circulating water equilibrium is cooled to flap everywhere; The cooling water that the Combination Design of this structure makes can better absorb flap heat, effectively reduces flap temperature.
The bottom of described flap bottom 4 is provided with flap thermal-protective coating 3.Thermal-protective coating 3 is made up of aluminium silicate fiber peacekeeping corrosion resistant plate, corrosion resistant plate has pressure balance vent and is wrapped on aluminum silicate fiber; One circle resistance welding and flap are welded to connect.Protection flap is not burnt at Long contact time high temperature media.
The body of the lower end of described flap bottom 4 is processed with guiding isolation annular groove 24.Make to form an annular air heat insulating belt between flap primary sealing area and guide seal cover, reduce high temperature media to the heat transfer of primary sealing area, thermoconvection and thermal radiation.
Described flap top 6 and valve rod head 7 are outwards sealed by the conical surface 27, sphere 26 successively from center.
The design of this linkage structure makes flap and valve rod have self-alignment function, after valve rod thermal expansion is extended, and the problem be not closed completely when preventing valve rod axial pressure excessive.
Described valve rod is made up of upper and lower valve rod 21,19 and valve rod head 7, connected, and the chuck 22 that leads is joined with the guide-track groove be arranged on support 20 is sliding between this upper and lower valve rod 21,19 by guiding chuck 22.The effect of this guide-track groove is as follows: first: play valve and hydraulic pressure installation connection function; Second: ensure that valve rod is only elevated non rotating, do straight line motion; 3rd: play the guiding role; 4th: play a supportive role.
The design of guiding, meet the valve rod that valve causes due to special construction completely long, the requirement of sealing surface centering is affected in opening and closing process, also ensure that perpendicularity and the connection of oil hydraulic cylinder and valve simultaneously, solve the contingent jam problem of cylinder piston, ensure that valve switch is smooth and easy.
Described valve flowing channel, inner chamber are provided with valve body thermal-protective coating I 2, valve body thermal-protective coating II 10, and this valve body thermal-protective coating I 2, valve body thermal-protective coating II 10 are liner thermal-protective coating; The internal layer of this liner thermal-protective coating has hole.Body cavity adopts liner thermal-protective coating, thermal-protective coating internal layer GH3128 steel plate supports, and have a large amount of aperture, when high temperature and high pressure gas passes through at a high speed, gas enters between thermal-protective coating by thermal-protective coating supporting drum aperture, reaches pressure balance, is taken away by thermal-protective material for preventing high velocity air, be wrapped on interior lining panel with GH145 ultra-thin steel sheet, and use resistance welding spot welding.
Described valve gap is provided with the second heat-proof device 13, and this second heat-proof device 13 comprises setting sleeve and pressure balance plate, and this setting sleeve is fixed on valve gap, and thermal-protective material is filled between described setting sleeve and pressure balance plate; This pressure balance plate has through hole.Valve gap thermal-protective coating assembly is by aluminum silicate fiber, setting sleeve and have pressure balance vent corrosion resistant plate and form, and setting sleeve is welded on valve gap, and aluminum silicate fiber is contained between the pressure balance vent corrosion resistant plate of setting sleeve and adjacent valve body.The filler that valve gap thermal-protective coating assembly mainly protects valve does not work under high-temperature situation, ensure that gland sealed reliability, extends the working life of valve.
Claims (8)
1. a hydraulic drive high-temperature thermal valve, comprises valve rod, flap, valve body, valve gap, it is characterized in that: described valve rod and flap are provided with cooling system; Be provided with valve rod water cooling tube (8) in described valve rod, this valve rod water cooling tube (8) inner chamber is water inlet flow channel and gap between outer wall and valve rod forms backwater runner, and the underpart of this valve rod water cooling tube (8) is provided with water outlet (25); Described flap forms by flap upper and lower part (6,4) are affixed, this flap top (6) and valve rod head (7) affixed, flap bottom (4) inner chamber is circulating water pool, the flap current deflecting plate (5) that this circulating water pool is fixedly connected on water outlet (25) top of valve rod water cooling tube (8) is divided into cooling chamber and refluxing chamber, the water outlet (25) of valve rod water cooling tube (8) is in this cooling chamber, described refluxing chamber and backwater flow passage.
2. a kind of hydraulic drive high-temperature thermal valve according to claim 1, is characterized in that: it is high that the circulating water pool of described flap bottom (4) inner chamber has center, the structure that periphery is low.
3. a kind of hydraulic drive high-temperature thermal valve according to claim 2, is characterized in that: the bottom of described flap bottom (4) is provided with flap thermal-protective coating (3).
4. a kind of hydraulic drive high-temperature thermal valve according to claim 3, is characterized in that: the body of the lower end of described flap bottom (4) is processed with guiding isolation annular groove (24).
5. a kind of hydraulic drive high-temperature thermal valve according to claim 1, is characterized in that: described flap top (6) and valve rod head (7) are outwards sealed by the conical surface (27), sphere (26) successively from center.
6. a kind of hydraulic drive high-temperature thermal valve according to claim 1, it is characterized in that: described valve rod is made up of upper and lower valve rod (21,19) and valve rod head (7), connected by guiding chuck (22) between this upper and lower valve rod (21,19), and the chuck that leads (22) and the guide-track groove cunning be arranged on support (20) are joined.
7. a kind of hydraulic drive high-temperature thermal valve according to claim 1, it is characterized in that: described valve flowing channel, inner chamber are provided with valve body thermal-protective coating I (2), valve body thermal-protective coating II (10), this valve body thermal-protective coating I (2), valve body thermal-protective coating II (10) are liner thermal-protective coating; The internal layer of this liner thermal-protective coating has hole.
8. a kind of hydraulic drive high-temperature thermal valve according to claim 1, it is characterized in that: described valve gap is provided with the second heat-proof device (13), this second heat-proof device (13) comprises setting sleeve and pressure balance plate, this setting sleeve is fixed on valve gap, and thermal-protective material is filled between described setting sleeve and pressure balance plate; This pressure balance plate has through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420767854.8U CN204284462U (en) | 2014-12-09 | 2014-12-09 | A kind of hydraulic drive high-temperature thermal valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420767854.8U CN204284462U (en) | 2014-12-09 | 2014-12-09 | A kind of hydraulic drive high-temperature thermal valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204284462U true CN204284462U (en) | 2015-04-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420767854.8U Expired - Fee Related CN204284462U (en) | 2014-12-09 | 2014-12-09 | A kind of hydraulic drive high-temperature thermal valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204284462U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455478A (en) * | 2014-12-09 | 2015-03-25 | 兰州高压阀门有限公司 | Hydraulic high-temperature heat valve |
| CN104879502A (en) * | 2015-04-28 | 2015-09-02 | 成都无极真空科技有限公司 | Temperature-resistant, pressure-proof and high-vacuum valve |
-
2014
- 2014-12-09 CN CN201420767854.8U patent/CN204284462U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455478A (en) * | 2014-12-09 | 2015-03-25 | 兰州高压阀门有限公司 | Hydraulic high-temperature heat valve |
| CN104879502A (en) * | 2015-04-28 | 2015-09-02 | 成都无极真空科技有限公司 | Temperature-resistant, pressure-proof and high-vacuum valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20150422 Termination date: 20171209 |