CN201373118Y - High temperature flue butterfly valve - Google Patents
High temperature flue butterfly valve Download PDFInfo
- Publication number
- CN201373118Y CN201373118Y CN200920095734U CN200920095734U CN201373118Y CN 201373118 Y CN201373118 Y CN 201373118Y CN 200920095734 U CN200920095734 U CN 200920095734U CN 200920095734 U CN200920095734 U CN 200920095734U CN 201373118 Y CN201373118 Y CN 201373118Y
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- CN
- China
- Prior art keywords
- valve
- temperature flue
- valve body
- butterfly valve
- insulating lining
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a high temperature flue butterfly valve, which comprises a valve body, a valve rod, a valve plate and a bearing and is characterized in that: the valve body is internally fixed with a heat preservation inner lining; the inner circle of the inner lining is provided with rebates; the rebates are divided by a central axis of the valve rod; and the directions of a left rebate and a right rebate are opposite. The high temperature flue butterfly valve has the beneficial effects that: the high temperature flue butterfly valve is designed as a whole, the valve body is internally provided with the heat preservation inner lining with rebates; when closing the butterfly valve, the valve plate can be tightly close to the rebates of the heat preservation inner lining, thus solving the sealing problem of the flue valve; and the heat preservation inner lining is used for isolating the bearing arranged on the valve body and the high temperature flue gas, the temperature of the valve body and the temperature of the bearing are lower, the rotation of the valve plate is flexible, and the service life is long.
Description
Technical field
The utility model belongs to industrial heating furnace, relates in particular to a kind of and electric control valve and is used, and can regulate the high-temperature flue butterfly valve of furnace pressure automatically.
Background technique
Be in the industry heating facility of fuel with rock gas, oil, the high-temperature flue gas that fuel produces is discharged through chimney by flue.In order to regulate furnace pressure, make the fuel normal combustion, reach technological requirement, on flue, need device for installing and adjusting.At present, known controlling device has two kinds, a kind ofly is: flue shutter is installed on underground flue, and flue shutter is to expose in flue, and the valve rod that is connected with flashboard is by the sliding supported condition and the rotation at two ends.There is very big gap between flue shutter and the brick flue wall, seal badly, be unfavorable for the furnace pressure adjusting.Especially in large enterprise, be mostly the shared chimney of oven group,, can cause the furnace pressure instability because the sealing of flue shutter place is bad; Another kind is: the flue butterfly valve of installing on the flue on the ground, valve body and valve plate are all made by metal, for preventing that metal valve body and valve plate are stuck because of expanding when the high temperature, also will leave bigger gap between valve body and the valve plate.Simultaneously, because temperatures involved makes valve rod and bearing dilatancy, valve plate rotates and is obstructed, and causes sealing bad.The flue temperature height makes the butterfly valve body life-span short.For improving the workpiece heating quality, reduce energy consumption, improve the automatization level that the industry heating is established, the high-temperature flue butterfly valve is a critical component of regulating furnace pressure, the good and bad industry heating facility controlling level that directly influences of flue butterfly valve.
The model utility content
The utility model is in order to overcome deficiency of the prior art, providing a kind of can use under 1100 ℃ of high-temperature flue gas for a long time, be equipped with can the automatically adjust high-temperature flue butterfly valve of furnace pressure of electric control valve, can control the flow of flue gas, improve the control accuracy of Flue valve, guarantee excellent sealing performance.
The utility model for achieving the above object, be achieved through the following technical solutions: a kind of high-temperature flue butterfly valve, comprise valve body, valve rod, valve plate and bearing, it is characterized in that: described valve body internal fixation has insulating lining, the interior round belt of described insulating lining has the rim of the mouth, the rim of the mouth is with the central axis boundary of valve rod, and the direction in rim of the mouth, the left and right sides is opposite.
Described insulating lining is made by the vacuum forming high-alumina refractory fiber.
Upper bearing bracket is equipped with in described valve body top, and step is equipped with in the below, and sliding bearing is housed in the upper bearing bracket, and step is equipped with single direction thrust ball bearing, and valve shell is provided with the fixedly pin-and-hole of insulating lining.
The bi-side of described valve plate are provided with the gusset that prevents high temperature deformation.
The beneficial effects of the utility model: the design of high-temperature flue butterfly valve is as a whole, is provided with the insulating lining that has the rim of the mouth in valve body, and valve plate can be adjacent to the rim of the mouth of insulating lining when butterfly valve cut out, and solves the sealing problem of chimney valve; Have insulating lining isolated between bearing of installing on the valve body and high-temperature flue gas, the temperature of valve body and bearing is lower, and the valve plate rotation is flexible, and the life-span is long.
Description of drawings
Fig. 1 is a high-temperature flue butterfly valve structure schematic representation;
Fig. 2 is the I-I sectional drawing;
Fig. 3 is the valve body structure schematic representation;
Fig. 4 is the insulating lining structural representation.
Among the figure: 1, valve body, 2, insulating lining, 2-1, rim of the mouth, 3,7, pin, 4, upper bearing bracket, 5, sliding bearing, 6, valve rod, 8, valve plate, 9, step, 10, single direction thrust ball bearing, 11, pin-and-hole, 12, gusset.
Embodiment
Below in conjunction with preferred embodiment, details are as follows to embodiment that foundation the utility model provides.
See accompanying drawing for details, a kind of high-temperature flue butterfly valve comprises valve body 1, valve rod 6, valve plate 8 and bearing, and described valve body internal fixation has insulating lining 2, and the interior round belt of described insulating lining has rim of the mouth 2-1, and the rim of the mouth is with the central axis boundary of valve rod, and the direction in rim of the mouth, the left and right sides is opposite.Described insulating lining is made by the vacuum forming high-alumina refractory fiber, and the thickness of insulating lining is 300-400mm.Upper bearing bracket 4 is equipped with in described valve body top, and step 9 is equipped with in the below, and sliding bearing 5 is housed in the upper bearing bracket, and step is equipped with single direction thrust ball bearing 10, and valve shell is provided with the fixedly pin-and-hole 11 of insulating lining, and the aperture is Φ 10mm.Valve body thickness is 400mm.The bi-side of described valve plate are provided with the gusset 12 that prevents high temperature deformation.
Select the insulating lining of high-quality refractory material and the valve plate of high-quality refractory steel for use, it can be under 1100 ℃ high-temperature flue gas uses for a long time, is equipped with the electric actuator furnace pressure that can automatically adjust.Valve rod is used to drive valve plate and rotates, the single direction thrust ball bearing assembling in the step of valve rod one end and valve body, the sliding bearing assembling in the upper bearing bracket of valve rod opposite side and valve body; The interface that assembles with electric actuator is arranged in the upper end of valve rod; The partial fixing valve plate of valve rod in valve body.Valve plate is circular, and the thickness of valve plate is 10-20mm, valve plate and valve rod dowel fixes, and valve rod, valve plate and pin are all used 3Cr
25Ni
20Made.The insulating lining outside is square, with valve body stainless steel dowel fixes; Inner face is circular and the valve plate sealing, and the interior round belt of insulating lining has the rim of the mouth, and the interior circular diameter in rim of the mouth is less than valve plate diameter 50mm, and the outside diameter in rim of the mouth is greater than valve plate diameter 50mm, and insulating lining is made by the vacuum forming high-alumina refractory fiber.When the high-temperature flue butterfly valve cut out, the rim of the mouth of circle was adjacent in valve plate and the insulating lining, stoped high-temperature flue gas to pass through, and when the high-temperature flue butterfly valve was opened, high-temperature flue gas passed through smoothly.Electric actuator can be regulated the open degree of valve plate, and the flow of control flue gas is realized the automatic adjusting of furnace pressure.
Working principle: the high-temperature flue butterfly valve is linked and fixes with bolt and flue by the flange plate of valve body.When the high-temperature flue butterfly valve cut out, valve rod drove the valve plate rotation, and the refractory fiber of dumpling made of glutinous rice flour mouth is adjacent in the steel plate of valve plate and the insulating lining, stoped high-temperature flue gas to pass through, as shown in Figure 2.When the high-temperature flue butterfly valve is opened, electric actuator is according to the furnace pressure numerical value of technique initialization, variation according to flue gas flow, accept the 4-20mA signal of input, electric actuator drives valve rod and valve plate rotation and opens, electric actuator is constantly regulated the open degree of valve plate 8, and the flow of control high-temperature flue gas is realized the automatic adjusting of furnace pressure.Be useful on the valve body and flue flange connecting dish.Have insulating lining isolated between the single direction thrust ball bearing of installing on the valve body 1 and sliding bearing and high-temperature flue gas, spacing is 150mm, and the temperature at single direction thrust ball bearing and sliding bearing place is lower, and the valve rod rotation is flexible, and the life-span is long.
The above only is preferred embodiment of the present utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (4)
1, a kind of high-temperature flue butterfly valve comprises valve body, valve rod, valve plate and bearing, it is characterized in that: described valve body internal fixation has insulating lining, and the interior round belt of described insulating lining has the rim of the mouth, and the rim of the mouth is with the central axis boundary of valve rod, and the direction in rim of the mouth, the left and right sides is opposite.
2, high-temperature flue butterfly valve according to claim 1, it is characterized in that: described insulating lining is made by the vacuum forming high-alumina refractory fiber.
3, high-temperature flue butterfly valve according to claim 1 and 2, it is characterized in that: upper bearing bracket is equipped with in described valve body top, and step is equipped with in the below, and sliding bearing is housed in the upper bearing bracket, step is equipped with single direction thrust ball bearing, and valve shell is provided with the fixedly pin-and-hole of insulating lining.
4, high-temperature flue butterfly valve according to claim 1, it is characterized in that: the bi-side of described valve plate are provided with the gusset that prevents high temperature deformation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920095734U CN201373118Y (en) | 2009-03-03 | 2009-03-03 | High temperature flue butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920095734U CN201373118Y (en) | 2009-03-03 | 2009-03-03 | High temperature flue butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201373118Y true CN201373118Y (en) | 2009-12-30 |
Family
ID=41499199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920095734U Expired - Fee Related CN201373118Y (en) | 2009-03-03 | 2009-03-03 | High temperature flue butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201373118Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865294A (en) * | 2010-06-13 | 2010-10-20 | 无锡智能自控工程有限公司 | Butterfly valve with outer locating and guiding structure capable of preventing transmission shaft from being stuck |
| CN107559434A (en) * | 2015-08-24 | 2018-01-09 | 朱小菊 | Fire-fighting ventilation shaft valve ventilating board |
| CN107606189A (en) * | 2017-10-31 | 2018-01-19 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of environmental Protection cremator high-temperature flue gas processing butterfly valve |
| CN112696502A (en) * | 2020-12-31 | 2021-04-23 | 上海广成涂装技术工程有限公司 | Novel high-temperature opening valve |
-
2009
- 2009-03-03 CN CN200920095734U patent/CN201373118Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865294A (en) * | 2010-06-13 | 2010-10-20 | 无锡智能自控工程有限公司 | Butterfly valve with outer locating and guiding structure capable of preventing transmission shaft from being stuck |
| CN101865294B (en) * | 2010-06-13 | 2011-11-16 | 无锡智能自控工程有限公司 | Butterfly valve with outer locating and guiding structure capable of preventing transmission shaft from being stuck |
| CN107559434A (en) * | 2015-08-24 | 2018-01-09 | 朱小菊 | Fire-fighting ventilation shaft valve ventilating board |
| CN107559434B (en) * | 2015-08-24 | 2019-10-18 | 中高(泰州)知识产权管理咨询有限公司 | Fire-fighting ventilation shaft valve ventilating board |
| CN107606189A (en) * | 2017-10-31 | 2018-01-19 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of environmental Protection cremator high-temperature flue gas processing butterfly valve |
| CN112696502A (en) * | 2020-12-31 | 2021-04-23 | 上海广成涂装技术工程有限公司 | Novel high-temperature opening valve |
| CN112696502B (en) * | 2020-12-31 | 2023-08-25 | 上海广成涂装技术工程有限公司 | High Wen Kaidu 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: 20091230 Termination date: 20160303 |