CN104390050B - Water-cooling valve stem structure of 1500-DEG C superhigh temperature valve - Google Patents
Water-cooling valve stem structure of 1500-DEG C superhigh temperature valve Download PDFInfo
- Publication number
- CN104390050B CN104390050B CN201410745297.4A CN201410745297A CN104390050B CN 104390050 B CN104390050 B CN 104390050B CN 201410745297 A CN201410745297 A CN 201410745297A CN 104390050 B CN104390050 B CN 104390050B
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- Prior art keywords
- stem
- water
- stem body
- valve
- valve stem
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- 238000001816 cooling Methods 0.000 title claims abstract description 16
- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 239000000498 cooling water Substances 0.000 abstract description 6
- 238000012546 transfer Methods 0.000 abstract description 2
- 230000007704 transition Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000008385 outer phase Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K49/00—Means in or on valves for heating or cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Multiple-Way Valves (AREA)
Abstract
A water-cooling valve stem structure of a 1500-DEG C superhigh temperature valve comprises a valve stem. The valve stem is of reduction structure and provided with a single-circulating water cooling structure. The valve stem is formed by fixedly connecting a valve stem body and a valve stem joint, and the external portion of the valve stem body is of reduction structure composed of a large-diameter section and a small-diameter section which are connected through a transition section. Cooling water can flow in the space formed by the valve stem body, a valve stem bush, an inner water-cooling pipe and the valve stem joint to form a single complete cycle of a water cooling system. An O-shaped ring in the inner water-cooling pipe prevents water from entering an outlet from the bottom of the inner water-cooling pipe and prevents water at the outlet from reaching the inlet from a sealed position of the O-shaped ring, so that water cooling in a single complete cycle is formed. The valve stem can safely and reliably operate under the working condition of superhigh temperature of 1500 DEG C through thermodynamic calculation of heat transfer.
Description
Technical field
The invention belongs to technical field of valve manufacturing, it is related under a kind of superhigh temperature operating mode for more than melting temperature metal
Valve in the structure of valve rod that is contacted with medium, refer specifically to it is a kind of can meet 1500 DEG C of superhigh temperature media with water-cooling structure
Stem structure.
Background technology
In 800 DEG C or so the high temperature valves of lower temperature grade, there is the valve completely using nonmetallic making both at home and abroad, but
Because the attribute of nonmetallic materials can not meet the requirement of rapid heat cycle and high pressure operating mode.Also have both at home and abroad is made using water-cooled measure
Valve energy normal work, but can so make the heat loss of medium too big, valve export medium can be made not reach the requirement of experiment,
Can not thus be used.According to current related data both at home and abroad, in high temperature resistance field, 1500 DEG C of superhigh-temperature and-pressures can not met
The valve of energy trouble free service under high-speed working condition.
The content of the invention
The present invention provide it is a kind of can under the superhigh temperature operating mode more than melting temperature metal the valve of safe and reliable operation
Water-cooled stem structure.
Therefore, the technical scheme for being used for：
A kind of water-cooled stem structure of 1500 DEG C of superhigh temperature valves, including valve rod, the valve rod are variable-diameter structure, and the valve
Single cycle water-cooling structure is set on bar.
The valve rod is formed by stem body and valve stem connection are affixed, by with enlarged diameter section and small outside the stem body
Two parts of diameter segment are connected by changeover portion and constitute variable-diameter structure.
After the stem body and valve stem connection are affixed, first cavity of the inside with insertion；The stem body it is big
The first hole is machined with the wall thickness of diameter segment end, first hole and the first cavity insertion；The enlarged diameter section of stem body
Periphery on be machined with conduit, the conduit accumulates annular groove after extending to the end of the reduced diameter section of stem body, at the annular groove
Stem body wall thickness on be machined with the second hole；Equipped and reducing the outer phase of stem body in the periphery of the stem body is fitted
The reducing valve stem sleeve matched somebody with somebody, outer flow passage is formed between the inwall and conduit of the reducing valve stem sleeve, the outer flow passage and first hole insertion；
First cavity inner wall of water-cooled inner tube one end and the stem body is tightly connected, and has between the other end and first cavity inner wall
There are second flow channel, second hole and the second flow channel insertion.
The channel width for being distributed in the large and small diameter segment of the stem body is different.
The channel width for being distributed in stem body enlarged diameter section is narrower than being distributed in the channel width of stem body reduced diameter section.
Second hole is distributed some rows in the axial direction of stem body, and some holes that ranked second are cut in the radial direction of stem body
It is uniform on face.
Variable-diameter structure of the invention, is a kind of anti-structure that flies out for meeting high pressure operating mode valve rod, and in stem body periphery
The water-cooling groove that width is different, quantity is different is processed on face, to meet the requirement of respective operating mode respectively.Valve rod master at enlarged diameter section
Conduit is narrow on body, quantity is more, and the position is directly washed away in valve by high-temperature medium, and operating mode is severe, it is necessary to radiating effect
Good, conduit is wide on the stem body at reduced diameter section, quantity is few, and no high-temperature medium washes away, but primarily serves supporting role.
Flowed in the space that stem body, valve stem sleeve, water-cooled inner tube, valve stem connection are formed the invention enables cooling water, reach one
The complete single cycle of water cooling system.The Ο types circle at water-cooled inner tube position had both been prevented into water and had entered inlet/outlet from water-cooled inner tube bottom
Position, prevents the water of outlet that import is reached from Ο type circle sealings again, forms a complete single cycle water-cooled, through heat transfer
Thermodynamic computing obtains valve rod being capable of safe and reliable operation under 1500 DEG C of operating modes of superhigh temperature.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is stem body cutting structural representation of the present invention；
Fig. 3 is the sectional view along AA in Fig. 2；
Fig. 4 is the BB in Fig. 2 to sectional view；
Fig. 5 is stem body surface structure schematic diagram of the present invention；
Fig. 6 is the C-C sectional views in Fig. 5；
Fig. 7 is the D-D sectional views in Fig. 5；
Fig. 8 is valve stem connection structural representation of the present invention.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
A kind of water-cooled stem structure of 1500 DEG C of superhigh temperature valves, including valve rod, the valve rod are variable-diameter structure, and the valve
Single cycle water-cooling structure is set on bar.
As shown in figure 1, the valve rod is welded by stem body 1 and valve stem connection 7, by having outside the stem body 1
Connected by changeover portion by two parts of enlarged diameter section and reduced diameter section and constitute variable-diameter structure.
After the stem body 1 and valve stem connection 7 are affixed, first cavity 1-1 of the inside with insertion；The stem body
The first hole 1-2 is machined with the wall thickness of 1 enlarged diameter section end, the first hole 1-2 and the first cavity 1-1 insertions；Valve rod
Conduit 1-5 is machined with the periphery of the enlarged diameter section of main body 1, conduit 1-5 extends to the end of the reduced diameter section of stem body 1
After accumulate annular groove 1-3, the second hole 1-4 is machined with the wall thickness of the stem body 1 at annular groove 1-3；The stem body 1
The reducing valve stem sleeve 2 that equipped and reducing the periphery of stem body 1 in periphery is adapted, the inwall and conduit 1-5 of the reducing valve stem sleeve 2
Between form outer flow passage, the outer flow passage and the first hole 1-2 insertions；The head weldering of the small end and valve stem connection 7 of reducing valve stem sleeve 2
Connect in succession.First cavity 1-1 inwalls of the one end of water-cooled inner tube 6 and the stem body 1 are tightly connected by Ο type sealing rings, separately
There is second flow channel, the second hole 1-4 and the second flow channel insertion between one end and the first cavity 1-1 inwalls.The present invention
The design of middle water-cooled inner tube 6 causes valve rod water-cooling system water outlet reliability, and Ο type sealing rings prevent water outlet countercurrently, cooling water is existed
Flowed in this space for being formed, reach a complete single cycle.
The channel width for being distributed in the large and small diameter segment of the stem body 1 is different.It is distributed in the enlarged diameter section of stem body 1
Channel width it is narrower than being distributed in the channel width of the reduced diameter section of stem body 1.Specially：As shown in Figure 2,3, 4, stem body
48 deep conduits of 5mm 10mm wide are machined with the periphery of 1 enlarged diameter section, the conduit is in the position of the changeover portion 4 of stem body
Put and there occurs change, here, conduit 2 merges into 1,24 8mm 10mm depths wide are changed into from 48 deep conduits of 5mm 10mm wide
Conduit and extend to stem body reduced diameter section.This structure of conduit has reached the balance of flow.
As shown in Fig. 5,6,7, the second hole 1-4 is distributed some rows in the axial direction of stem body 1, and this is some to ranked second hole
It is uniform on the radial section of stem body 1-4.As shown in Fig. 5,6,7, the second hole machined has two rows in the embodiment, often arranges each
4 holes, the outer wall of water-cooled inner tube 6 and the cavity inner wall shape of stem body 1 are entered after being discharged in 8 holes up and down of the cooling water from annular groove
Into annulus discharge.In order to drain only pressure testing water in the pressure testing stage, by 4 at a certain row at the annular groove of stem body 1
Individual second hole is pressed close at step to process, and refers to Fig. 5.
The screw thread position of valve stem connection of the invention 7 is carried out after being connected with corresponding connector under the drive of drive device
Elevating movement, valve is respectively at closing and opening.Horizontal positioned of the present invention, valve rod is fitted with valve seat, reaches sealing, valve
The up valve opening of bar, in order to ensure the friction in motion process with valve cover hole, valve stem sleeve outer surface spraying cobalt base hard alloy.
Cooling procedure of the invention：Cooling water is intake from water-cooled inner tube 6 and entered by the center of stem body 1, reaches valve rod
During the first hole site that the enlarged diameter section end surrounding of main body 1 is covered with, flowed out to from the first hole up to stem body and valve stem sleeve shape
Into conduit in, the conduit of the two ends different size quantity of stem body 1 is processed respectively from stem body two respectively, cool down current
Through stem body reduced diameter section end when, each conduit merges into an annular groove, and annular groove is provided with the second uniform hole of some rows, this
When second hole of the cooling water from annular groove in discharge the annulus formed by water-cooled inner tube outer wall and cavity and discharge, reach whole
An individual cyclic process, to ensure that metal valve stem works in the case where normal mechanical performance is met.
The present invention is the valve used in superhigh-temperature and-pressure high wind tunnel testing, installed in air heater outlet and ultrasound
Key position between fast wind-tunnel trunnion jet pipe, is used to open and close wind-tunnel temperature air-source in wind tunnel experiment, is engineering
The key equipment of system.In high temperature resistance field, 1500 DEG C of superhigh temperature valves still belong to the first time.
Action process of the invention in the main working process of the wind tunnel test：
1., warm-up phase：
About 24 hours preheating time, now the present invention is closed, and there is 8 meters of pipeline insulated lining front end, leads to
Cross this pipeline to couple together heater and valve, now the air pressure in insulated lining is local standard atmospheric pressure；It is small by 24
When preheating post-heater in temperature reach 1500 DEG C, the air in insulated lining be in first valve state.
2. air event, is heated：
When reaching 1500 DEG C by the temperature in the preheating post-heater of 24 hours, the valve in heater is caused
The air of 5.0MPa enters in heater, and now the present invention is closed.Heat again and cause within about 3 minutes that air is abundant
Carry out heat exchange.Now valve cavity bears 5.0M Pa, 1500 DEG C of high temperature air.
3., the valve opening stage：
Valve pocket internal pressure and temperature reach 5.0M Pa, 1500 DEG C when, the present invention opened rapidly in 1 second, flow velocity
For the high temperature air of 60m/s is filled with valve and is flowed out by valve seat, 20 seconds high temperature air constant flow time.
4., the valve closing stage：
After the 20 seconds constant flow time of high temperature air, slowly closing of the present invention, and block heater 5.0MPa sources of the gas, valve
Interior temperature drop, air pressure is local standard atmospheric pressure.About 6 hours of 1500 DEG C of time are reheated to, then are prepared next time
Open valve.
Claims (4)
1. a kind of water-cooled stem structure of 1500 DEG C of superhigh temperature valves, including valve rod, it is characterised in that：The valve rod is reducing knot
Single cycle water-cooling structure is set on structure, and the valve rod；The valve rod is by stem body（1）And valve stem connection（7）It is affixed to form, should
Stem body（1）It is outside that variable-diameter structure is constituted by changeover portion connection by the two parts with enlarged diameter section and reduced diameter section；
The stem body（1）And valve stem connection（7）After affixed, first cavity of the inside with insertion（1-1）；The stem body
（1）Enlarged diameter section end wall thickness on be machined with the first hole（1-2）, first hole（1-2）With first cavity（1-1）Pass through
It is logical；Stem body（1）Enlarged diameter section periphery on be machined with conduit（1-5）, the conduit（1-5）Extend to stem body（1）
Reduced diameter section end after accumulate annular groove（1-3）, the annular groove（1-3）The stem body at place（1）Wall thickness on be machined with
Two holes（1-4）；The stem body（1）Equipped and reducing the stem body in periphery（1）The reducing valve stem sleeve that periphery is adapted
（2）, the reducing valve stem sleeve（2）Inwall and conduit（1-5）Between form outer flow passage, the outer flow passage and first hole（1-2）Pass through
It is logical；Water-cooled inner tube（6）One end and the stem body（1）The first cavity（1-1）Inner wall sealing is connected, the other end and described the
One cavity（1-1）There is second flow channel, second hole between inwall（1-4）With the second flow channel insertion.
2. the water-cooled stem structure of a kind of 1500 DEG C of superhigh temperature valves according to claim 1, it is characterised in that：It is distributed in
The stem body（1）The channel width of large and small diameter segment is different.
3. the water-cooled stem structure of a kind of 1500 DEG C of superhigh temperature valves according to claim 2, it is characterised in that：It is distributed in
Stem body（1）The channel width ratio of enlarged diameter section is distributed in stem body（1）The channel width of reduced diameter section is narrow.
4. the water-cooled stem structure of a kind of 1500 DEG C of superhigh temperature valves according to claim 1, it is characterised in that：Described
Two holes（1-4）In stem body（1）Axial direction be distributed some rows, some holes that ranked second are in stem body（1）Radial section
It is upper uniform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410745297.4A CN104390050B (en) | 2014-12-09 | 2014-12-09 | Water-cooling valve stem structure of 1500-DEG C superhigh temperature valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410745297.4A CN104390050B (en) | 2014-12-09 | 2014-12-09 | Water-cooling valve stem structure of 1500-DEG C superhigh temperature valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104390050A CN104390050A (en) | 2015-03-04 |
| CN104390050B true CN104390050B (en) | 2017-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410745297.4A Active CN104390050B (en) | 2014-12-09 | 2014-12-09 | Water-cooling valve stem structure of 1500-DEG C superhigh temperature valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104390050B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546212A (en) * | 2016-03-01 | 2016-05-04 | 江苏神通阀门股份有限公司 | High-temperature valve rod structure and machining method thereof |
| CN106906512B (en) * | 2017-04-14 | 2023-03-28 | 南京晶能半导体科技有限公司 | Water-cooled core tube for semiconductor grade silicon single crystal furnace electrode and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204403548U (en) * | 2014-12-09 | 2015-06-17 | 兰州高压阀门有限公司 | The water-cooled stem structure of 1500 DEG C of superhigh temperature valves |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2224003A5 (en) * | 1973-03-30 | 1974-10-25 | Semt | |
| JP3112054B2 (en) * | 1994-04-28 | 2000-11-27 | 株式会社日立製作所 | Butterfly valve |
| CN201462002U (en) * | 2009-07-20 | 2010-05-12 | 浙江石化阀门有限公司 | Valve rod cooling mechanism for ultra-high temperature ultra-high pressure valve |
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2014
- 2014-12-09 CN CN201410745297.4A patent/CN104390050B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204403548U (en) * | 2014-12-09 | 2015-06-17 | 兰州高压阀门有限公司 | The water-cooled stem structure of 1500 DEG C of superhigh temperature valves |
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| Publication number | Publication date |
|---|---|
| CN104390050A (en) | 2015-03-04 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Water cooled valve stem structure of 1500 degC ultra high temperature valve Effective date of registration: 20220315 Granted publication date: 20170524 Pledgee: China Construction Bank Corporation Lanzhou Xigu sub branch Pledgor: LANZHOU HIGH PRESSURE VALVE Co.,Ltd. Registration number: Y2022620000005 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20170524 Pledgee: China Construction Bank Corporation Lanzhou Xigu sub branch Pledgor: LANZHOU HIGH PRESSURE VALVE Co.,Ltd. Registration number: Y2022620000005 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Water cooled valve stem structure for 1500 degC ultra-high temperature valves Granted publication date: 20170524 Pledgee: Lanzhou rural commercial bank Limited by Share Ltd. Xigu branch Pledgor: LANZHOU HIGH PRESSURE VALVE Co.,Ltd. Registration number: Y2024620000001 |