CN205173512U - Sea water resistance butterfly valve - Google Patents
Sea water resistance butterfly valve Download PDFInfo
- Publication number
- CN205173512U CN205173512U CN201520870447.4U CN201520870447U CN205173512U CN 205173512 U CN205173512 U CN 205173512U CN 201520870447 U CN201520870447 U CN 201520870447U CN 205173512 U CN205173512 U CN 205173512U
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- CN
- China
- Prior art keywords
- valve
- butterfly
- sea water
- water resistance
- valve 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a sea water resistance butterfly valve, including valve body, valve rod, butterfly plate, worm gear and support, the worm gear passes through support and valve body fixed connection, be equipped with butterfly plate and valve rod in the valve body, the butterfly plate passes through the valve rod and is connected with the worm gear, be equipped with filler component between valve rod and the valve body, the filler component below is equipped with the filler packing ring, the filler component top is equipped with gland, gland passes through stud and leg joint, filler component includes polytetrafluoroethylene and EPT rubber, butterfly plate outward appearance top -coat is equipped with the line with rubber layer. The utility model discloses a sea water resistance butterfly valve has superstrong corrosion -resistant ability, and the inflow -rate of water turbine is big, long service life.
Description
Technical field
The utility model relates to the control field in fluid delivery system, especially relates to the sea water resistance butterfly valve in Valve controlling field.
Background technique
In recent years, along with the quickening of ocean exploitation progress, a large amount of construction of coastal nuclear power projects and the popularization of desalination of sea water industry, the application of sea water resistance butterfly valve is more and more extensive.
Seawater is a kind of electrolyte solution containing many salts, and is dissolved with a certain amount of oxygen, and most of metallic material all exists electrochemical corrosion in the seawater.In seawater, chloride ion content is very large, adds rate of corrosion, and ocean current and sand grains produce low frequency toward combined stress and impact to metal construction simultaneously.In recent years, along with the quickening of ocean exploitation progress, a large amount of construction of coastal nuclear power projects and the popularization of desalination of sea water industry, the application of sea water resistance butterfly valve is more and more extensive.
Common sea water resistance butterfly valve, for adapting to the corrosion of chlorion in seawater, the accessory such as valve body, butterfly plate adopts the materials such as two phase stainless steel, titanium alloy and aluminum bronze to make usually, and the sea water resistance butterfly valve adopting above material to make has respective defect, can not meet the needs of seawater operating mode completely.As titanium alloy butterfly valve, although various aspects of performance is all very superior, titanium or titanium alloy smelting technology difficulty is large, and the approach obtaining titanium alloy casting is more difficult, difficult processing, and price is very expensive.The butterfly valve made as adopted two phase stainless steel, can resist chloride ion corrosion, but erosion resistance ability is bad, and runner and sealing surface are subject to wash away and impaired, cause butterfly valve seal face to leak.
Summary of the invention
Problem to be solved in the utility model is, for above-mentioned shortcoming of the prior art, proposes improvement project or alternative, especially a kind of sea water resistance butterfly valve.
For solving the problem, the scheme that the utility model adopts is as follows: a kind of sea water resistance butterfly valve, comprises valve body, valve rod, butterfly plate, gear and support, it is characterized in that, described gear is fixedly connected with valve body by support; Butterfly plate and valve rod is provided with in described valve body; Described butterfly plate is connected with gear by valve rod; Filler group is provided with between described valve rod and valve body; Filler packing ring is provided with below described filler group; Gland is provided with above described filler group; Described Gland is connected with support by stud bolt; Described filler group comprises teflon and ethylene propylene diene rubber; Described butterfly plate outer surface is coated with line with rubber layer.
Butterfly plate of the present utility model, through optimal design, can effectively increase butterfly valve area of passage, reduces fluid resistance; According to different operating modes, suitable butterfly plate seal ring can be selected, guarantee that valve can not produce interior leakage within a repair cycle; The component such as valve body, butterfly plate, pressure ring are that carbon steel material is made, and effectively reduce manufacture cost, allly ceramic coatedly with medium contact position wait abrasion-proof corrosion-proof erosion resisting coating, the ability that can increase valve anti-seawater corrosion He wash away; Valve shaft housing is that two-phase stainless Steel material is made, and adopts interference fit with the axis hole on valve body, effectively prevents seawater to the corrosion at valve body axis hole position; Between valve rod and axle sleeve, have back-up ring, its effect is: prevent seawater from infiltrating between valve rod and axle sleeve, eliminates the corrosion of seawater to valve rod and axle sleeve.Prevent the silt particle in seawater from infiltrating in the gap of valve rod and axle sleeve simultaneously, cause valve rod and axle sleeve scuffing, effectively improve the working life of valve; Valve base sealing surface build-up welding two phase stainless steel, wear-resisting, the antiscour of energy, effectively improves valve seal reliability; Adopt moving loads formula filler, i.e. V-type PTFE(teflon)+V-type EPDM(ethylene propylene diene rubber) filler, ensure that valve does not produce within a repair cycle and leak outside.
Further, sea water resistance butterfly valve according to above-mentioned design proposal, is provided with spacer ring in the middle part of described filler group, and filler component cuts as upper and lower two-part by described spacer ring.
Further, sea water resistance butterfly valve according to above-mentioned design proposal, described gear comprises handwheel; Described handwheel handle portion is coated is provided with anti-slip rubber layer.
Further, sea water resistance butterfly valve according to above-mentioned design proposal, described valve outer surface is coated with line with rubber layer; The two ends of described sea water resistance butterfly valve each several part connection bearing pin and bolt are coated with rubber sleeve.
Further, sea water resistance butterfly valve according to above-mentioned design proposal, described valve body and the butterfly plate place of being tightly connected are provided with little port recess; Seal ring is arranged with in described little port recess; Described butterfly plate and valve seal joint are provided with butterfly plate seal ring; Described butterfly plate seal ring surface scribbles anti-corrosion layer.
Further, sea water resistance butterfly valve according to above-mentioned design proposal, described seal ring is that nitrile butadiene rubber (NBR) grease injecting mode is made.
Further, sea water resistance butterfly valve according to above-mentioned design proposal, described body base is provided with bottom; Sealing gasket is provided with between described bottom and valve body; Described bottom is provided with spacer and lower valve rod successively; Described lower valve rod is fixedly connected with butterfly plate by bearing pin.
Further, sea water resistance butterfly valve according to above-mentioned design proposal, is arranged with lower valve rod lining outside described lower valve rod; Described valve rod is positioned under filler group and is arranged with valve lever bushing outside square bar section.
Further, sea water resistance butterfly valve according to above-mentioned design proposal, described butterfly plate comprises Arch Bridges Strengthening plate and fluoran stream surface plate; Incremental passage is formed between described Arch Bridges Strengthening plate and fluoran stream surface plate.
The line with rubber layer arranged at butterfly plate outer surface as described in above-mentioned design proposal can also be at butterfly plate outer surface ceramic layer.
Technique effect of the present utility model is as follows: sea water resistance butterfly valve of the present utility model is made up of valve body, valve rod, butterfly plate, gear, and is coated with line with rubber layer at butterfly plate and valve body surface, prevents seawater corrosion, increases the service life.Butterfly plate of the present utility model, through optimal design, can effectively increase butterfly valve area of passage, reduces fluid resistance; According to different operating modes, suitable butterfly plate seal ring can be selected, guarantee that valve can not produce interior leakage within a repair cycle; The component such as valve body, butterfly plate, pressure ring are that carbon steel material is made, and effectively reduce manufacture cost, allly ceramic coatedly with medium contact position wait abrasion-proof corrosion-proof erosion resisting coating, the ability that can increase valve anti-seawater corrosion He wash away; Valve shaft housing is that two-phase stainless Steel material is made, and adopts interference fit with the axis hole on valve body, effectively prevents seawater to the corrosion at valve body axis hole position; Between valve rod and axle sleeve, have back-up ring, its effect is: prevent seawater from infiltrating between valve rod and axle sleeve, eliminates the corrosion of seawater to valve rod and axle sleeve.Prevent the silt particle in seawater from infiltrating in the gap of valve rod and axle sleeve simultaneously, cause valve rod and axle sleeve scuffing, effectively improve the working life of valve; Valve base sealing surface build-up welding two phase stainless steel, wear-resisting, the antiscour of energy, effectively improves valve seal reliability; Adopt moving loads formula filler, i.e. V-type PTFE(teflon)+V-type EPDM(ethylene propylene diene rubber) filler, ensure that valve does not produce within a repair cycle and leak outside.
Accompanying drawing explanation
Fig. 1 is sea water resistance butterfly valve structure schematic diagram.
Fig. 2 is butterfly plate and valve body closing structure schematic diagram.
Wherein, 1-gear, 2-support, 3-Gland, 4-filler group, 5-valve rod, 6-butterfly plate, 7-lower valve rod, 8-lower valve rod lining, 9-sealing gasket, 10-spacer, 11-bottom, 12-seal ring, 13-butterfly plate seal ring, 14-line with rubber layer, 15-valve body.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further details.
A kind of sea water resistance butterfly valve, comprise valve body, valve rod, butterfly plate, gear and support, described gear is fixedly connected with valve body by support; Butterfly plate and valve rod is provided with in described valve body; Described butterfly plate is connected with gear by valve rod; Filler group is provided with between described valve rod and valve body; Filler packing ring is provided with below described filler group; Gland is provided with above described filler group; Described Gland is connected with support by stud bolt; Described filler group comprises teflon and ethylene propylene diene rubber; Described plate outer surface is coated with line with rubber layer, is provided with spacer ring in the middle part of described filler group, and filler component cuts as upper and lower two-part by described spacer ring, and described gear comprises handwheel; Described handwheel handle portion is coated is provided with anti-slip rubber layer, and described valve outer surface is coated with line with rubber layer; The two ends of described sea water resistance butterfly valve each several part connection bearing pin and bolt are coated with rubber sleeve, and described valve body and the butterfly plate place of being tightly connected are provided with little port recess; Seal ring is arranged with in described little port recess; Described butterfly plate and valve seal joint are provided with butterfly plate seal ring; Described butterfly plate seal ring surface scribbles anti-corrosion layer.
Claims (9)
1. a sea water resistance butterfly valve, comprises valve body, valve rod, butterfly plate, gear and support, it is characterized in that, described gear is fixedly connected with valve body by support; Butterfly plate and valve rod is provided with in described valve body; Described butterfly plate is connected with gear by valve rod; Filler group is provided with between described valve rod and valve body; Filler packing ring is provided with below described filler group; Gland is provided with above described filler group; Described Gland is connected with support by stud bolt; Described filler group comprises teflon and ethylene propylene diene rubber; Described butterfly plate outer surface is coated with line with rubber layer.
2. sea water resistance butterfly valve according to claim 1, it is characterized in that, be provided with spacer ring in the middle part of described filler group, filler component cuts as upper and lower two-part by described spacer ring.
3. sea water resistance butterfly valve according to claim 1, it is characterized in that, described gear comprises handwheel; Described handwheel handle portion is coated is provided with anti-slip rubber layer.
4. sea water resistance butterfly valve according to claim 1, it is characterized in that, described valve outer surface is coated with line with rubber layer; The two ends of described sea water resistance butterfly valve each several part connection bearing pin and bolt are coated with rubber sleeve.
5. sea water resistance butterfly valve according to claim 1, it is characterized in that, described valve body and the butterfly plate place of being tightly connected are provided with little port recess; Seal ring is arranged with in described little port recess; Described butterfly plate and valve seal joint are provided with butterfly plate seal ring; Described butterfly plate seal ring surface scribbles anti-corrosion layer.
6. sea water resistance butterfly valve according to claim 5, it is characterized in that, described seal ring is that nitrile butadiene rubber grease injecting mode is made.
7., according to the arbitrary described sea water resistance butterfly valve of claim 1-6, it is characterized in that, described body base is provided with bottom; Sealing gasket is provided with between described bottom and valve body; Described bottom is provided with spacer and lower valve rod successively; Described lower valve rod is fixedly connected with butterfly plate by bearing pin.
8. sea water resistance butterfly valve according to claim 7, is characterized in that, be arranged with lower valve rod lining outside described lower valve rod; Described valve rod is positioned under filler group and is arranged with valve lever bushing outside square bar section.
9. sea water resistance butterfly valve according to claim 8, it is characterized in that, described butterfly plate comprises Arch Bridges Strengthening plate and fluoran stream surface plate; Incremental passage is formed between described Arch Bridges Strengthening plate and fluoran stream surface plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520870447.4U CN205173512U (en) | 2015-11-04 | 2015-11-04 | Sea water resistance butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520870447.4U CN205173512U (en) | 2015-11-04 | 2015-11-04 | Sea water resistance butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205173512U true CN205173512U (en) | 2016-04-20 |
Family
ID=55737506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520870447.4U Withdrawn - After Issue CN205173512U (en) | 2015-11-04 | 2015-11-04 | Sea water resistance butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205173512U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635981A (en) * | 2022-03-14 | 2022-06-17 | 江苏江沅机械有限公司 | Anti-corrosion butterfly valve |
-
2015
- 2015-11-04 CN CN201520870447.4U patent/CN205173512U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635981A (en) * | 2022-03-14 | 2022-06-17 | 江苏江沅机械有限公司 | Anti-corrosion butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160420 Effective date of abandoning: 20180824 |