CN202812385U - Butt-welded anti-blockage gas flue butterfly valve - Google Patents
Butt-welded anti-blockage gas flue butterfly valve Download PDFInfo
- Publication number
- CN202812385U CN202812385U CN 201220450141 CN201220450141U CN202812385U CN 202812385 U CN202812385 U CN 202812385U CN 201220450141 CN201220450141 CN 201220450141 CN 201220450141 U CN201220450141 U CN 201220450141U CN 202812385 U CN202812385 U CN 202812385U
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- valve
- butt joint
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- welded
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Abstract
The utility model relates to a butt-welded anti-blockage gas flue butterfly valve. The valve comprises an upper valve stem, an upper bearing, an upper bearing bracket, a filler gland, a sealing filler, a valve body, valve bases, a valve plate, a positioning pin, a lower valve rod, a lower bracket, a lower bearing and an annular reinforcing rib, wherein the valve body is formed by annularly welding a heat-resistant alloy metal plate coil and is in butt-welded connection with a pipe; the side plane sealing is adopted between the valve plate and the valve bases; and the semicircular valve bases are staggered along the fluid passage direction and are arranged in the manner of being symmetrical to the valve plate. The valve has the advantages of compact structure, small outline size, saving in mounting space, no blockage, good high-temperature sealing property and the like, and is particularly applied to a gas flue system with larger caliber.
Description
Technical field
The utility model relates to a kind of flue butterfly valve, particularly relates to butt joint type anti-block flue butterfly valve.
Background technique
The flue butterfly valve is widely used in the pipe-line systems such as the high temperature airs such as cement industry, environment-friendly engineering, heat recovery, metallurgy, mine, electric power, flue gas, dust-containing airflow and regulates control flow, flow velocity and pressure.
The flue butterfly valve of prior art generally adopts carbon steel casting valve body, and often resistance to heat is relatively poor, usually all adopts flange to be connected with pipeline, so boundary dimension is large, structure length is long, difficulty is installed, and leaks easily; Valve aperture because of the flue butterfly valve is generally all larger again, so the valve plate Heavy Weight, valve plate is easy to be subjected to displacement or because gravity produces saggingly, and cause jam even kill because of thermal effect.
The model utility content
The purpose of this utility model be to provide a kind of simple in structure, boundary dimension is little, manufacturing and simple installation, be difficult for the butt joint type anti-block flue butterfly valve of jam.
Technical solution of the present utility model is: a kind of butt joint type anti-block flue butterfly valve, comprise the component such as upper valve rod, upper bearing (metal), upper bearing (metal) support, Gland, stuffing box packing, valve body, valve seat, valve plate, locating stud, lower valve rod, lower bracket, lower bearing and ring stiffener, it is characterized in that described valve body adopts heat-resisting alloy steel roll of steel plate circle to be welded, with the Placement employing butt joint type of pipeline.
Described valve plate and valve seat adopt the side plane way of contact to seal, and sky is opened appropriate gap between valve plate and the valve interior wall.
On described valve body excircle, respectively add one ring stiffener of weldering with a certain distance from bevel for welding.
Described valve seat is two sections semicircular ring that are welded in the valve body fluid vias inner walls.
Described valve seat is along the direction of fluid valve plate thickness distance that staggers, and is symmetrical in valve plate and arranges.
The beneficial effect that the utility model product brings is: have compact structure, boundary dimension little, save installing space, without advantages such as jam, elevated-temperature seal performance are good, be specially adapted to the flue system use of larger caliber.
Description of drawings
Fig. 1 is the utility model embodiment's structural representation.
Fig. 2 is A-A sectional view of the present utility model.
Fig. 3 is B place enlarged diagram among Fig. 2.
Embodiment
Below in conjunction with accompanying drawing specific embodiment of the utility model is described further.
Among the embodiment as shown in Figure 1, comprise the component such as upper valve rod 1, upper bearing (metal) 2, upper bearing (metal) support 3, Gland 4, stuffing box packing 5, valve body 6, valve seat 7, valve plate 8, locating stud 9, lower valve rod 10, lower bracket 11, lower bearing 12 and ring stiffener 13.Described valve body adopts the heat-resisting alloy steel roll of steel plate circles such as 15CrMo, 12CrlMoV to be welded, and the Placement employing butt joint type with pipeline can reach compact structure preferably, structure length is short, and volume is little, and is lightweight, save installing space, and the purpose of good heat resistance.
Described valve plate 8 adopts the side plane way of contact to seal with valve seat 7, can not produce radially jam.The empty appropriate gap of opening 3～5mm between described valve plate 8 and the valve body 6 is when having fouling to overcome valve interior wall, because valve plate thermal expansion or sagging displacement cause jam problem between the valve body valve plate.
On the excircle of described valve body 6, respectively add one ring stiffener 13 of weldering with a certain distance from bevel for welding, play the enhancing body strength, prevent the effect of being out of shape.
Described valve seat 7 is two sections semicircular ring that are welded in the valve body fluid vias inner walls.
Described valve seat 7 is along the direction of fluid valve plate thickness distance that staggers, and is symmetrical in valve plate and arranges.
Described bearing bracket 3,11 adopts extending type heat insulation support structure, can just determine the bearing bracket extension according to working temperature, upper and lower valve rod adopts the ball bearing supporting of usheing to seat with pouring orifice, avoided preferably the axle head jam, by timely charging-up lubricant oil, guarantee that surface friction drag is little, rotate flexibly.
Claims (5)
1. butt joint type anti-block flue butterfly valve, comprise upper valve rod, upper bearing (metal), upper bearing (metal) support, Gland, stuffing box packing, valve body, valve seat, valve plate, locating stud, lower valve rod, lower bracket, lower bearing and ring stiffener, it is characterized in that described valve body adopts heat-resisting alloy steel roll of steel plate circle to be welded, with the Placement employing butt joint type of pipeline.
2. butt joint type anti-block flue butterfly valve according to claim 1 is characterized in that: described valve plate and valve seat adopt the side plane way of contact to seal, and sky is opened appropriate gap between valve plate and the valve interior wall.
3. butt joint type anti-block flue butterfly valve according to claim 1 and 2 is characterized in that: be welded with ring stiffener one with a certain distance from bevel for welding on the valve body excircle.
4. butt joint type anti-block flue butterfly valve according to claim 1 and 2, it is characterized in that: described valve seat is two sections semicircular ring that are welded in the valve body fluid vias inner walls.
5. butt joint type anti-block flue butterfly valve according to claim 1 and 2 is characterized in that: described valve seat is along the direction of fluid valve plate thickness distance that staggers, and is symmetrical in valve plate and arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220450141 CN202812385U (en) | 2012-09-02 | 2012-09-02 | Butt-welded anti-blockage gas flue butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220450141 CN202812385U (en) | 2012-09-02 | 2012-09-02 | Butt-welded anti-blockage gas flue butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202812385U true CN202812385U (en) | 2013-03-20 |
Family
ID=47871255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220450141 Expired - Fee Related CN202812385U (en) | 2012-09-02 | 2012-09-02 | Butt-welded anti-blockage gas flue butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202812385U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791114A (en) * | 2014-01-17 | 2014-05-14 | 葛京鹏 | Column cylinder valve structure |
| CN112628414A (en) * | 2020-12-23 | 2021-04-09 | 中海油能源发展股份有限公司 | Be used for turbine waste heat flue to adjust flue gas valve plate |
-
2012
- 2012-09-02 CN CN 201220450141 patent/CN202812385U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791114A (en) * | 2014-01-17 | 2014-05-14 | 葛京鹏 | Column cylinder valve structure |
| CN112628414A (en) * | 2020-12-23 | 2021-04-09 | 中海油能源发展股份有限公司 | Be used for turbine waste heat flue to adjust flue gas valve plate |
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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 |
Granted publication date: 20130320 Termination date: 20180902 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |