CN204300438U - Gas delivery system introducing-type glass fiber reinforced plastic check valve - Google Patents
Gas delivery system introducing-type glass fiber reinforced plastic check valve Download PDFInfo
- Publication number
- CN204300438U CN204300438U CN201420776617.8U CN201420776617U CN204300438U CN 204300438 U CN204300438 U CN 204300438U CN 201420776617 U CN201420776617 U CN 201420776617U CN 204300438 U CN204300438 U CN 204300438U
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- blade
- reinforced plastic
- delivery system
- gas delivery
- glass fiber
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- Expired - Fee Related
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- Check Valves (AREA)
Abstract
A kind of gas delivery system introducing-type glass fiber reinforced plastic check valve, be provided with the valve body made by glass reinforced plastic winding, end flanges is manufactured with at the two ends of valve body, wind passage was set between two end flanges in valve body, flaring reducer pipe is provided with in mistake wind passage, the large port of reducer pipe, towards the air intake crossing wind passage, is connected with a rectangular tube in the portlet crossing wind passage inner-diameter changeable pipe, is provided with the unidirectional blade grid can opened towards air side in rectangular tube.When blower fan is opened, gas imports in square tube by reducer pipe, is blown afloat by the built-in blade in square tube; When blower fan cuts out, because blade and axle adopt eccentric connection, under gravity, automatically fall closed, a small amount of wind of backflow is blocked by ring flat-plate, blend stop blade, realizes air self-locking.Compared with prior art, the utility model can be used for the gas delivery system under various occasion, and gas head loss is little, and blade opening is large, lock wind is effective.
Description
Technical field
The utility model relates to a kind of gas conveying technology, particularly a kind of gas delivery system introducing-type glass fiber reinforced plastic check valve.
Background technology
In the conveying and discharge process of the gas mediums such as doctorization waste gas, flue gas, air, causing gas backstreaming when stopping for preventing blower fan, all check-valves being set in pipeline.At present, in central air conditioner system, multiplex steel (or stainless steel, galvanized iron sheet, also have fiberglass) square non-return valve, less demanding.And in the waste gas conveying of the enterprises such as doctorization, electric power, iron and steel, because corrosive medium is large, adopt glass steel material more.The check-valves (diameter > ∮ 400) of larger caliber when inner vanes is arranged, adopt built-in toroidal membrane, dividing plate arranges blade, open with the wind by blade, and after shutdown, under gravity, blade closes.Small-bore double door of blade can being arranged to, utilizes torque spring to carry out folding.
The shortcoming of original technology: toroidal membrane sectional area is comparatively large, reduces draught area, and flowing resistance strengthens, causes loss in head large, affects ventilation effect; If reduce toroidal membrane sectional area, then cause the aperture of blade less, affect ventilation effect equally; Small-bore check-valves, to adopt torque spring to carry out two opening, torque spring is easily corroded, and easily leaks out in its junction; Torque spring Long-Time Service, also easily follows the string.
Summary of the invention
The technical problems to be solved in the utility model is for the deficiencies in the prior art, proposes the gas delivery system introducing-type glass fiber reinforced plastic check valve that a kind of body loss in head is little, lock wind is effective.
The technical problems to be solved in the utility model is achieved through the following technical solutions, a kind of gas delivery system introducing-type glass fiber reinforced plastic check valve, be characterized in: be provided with the valve body made by glass reinforced plastic winding, end flanges is manufactured with at the two ends of valve body, wind passage was set between two end flanges in valve body, flaring reducer pipe is provided with in mistake wind passage, the large port of reducer pipe is towards the air intake crossing wind passage, be connected with a rectangular tube in the portlet crossing wind passage inner-diameter changeable pipe, the unidirectional blade grid can opened towards air side is provided with in rectangular tube.
The technical problems to be solved in the utility model can also be come to realize further by the following technical programs, and described unidirectional blade grid is by be arranged side by side and mutually some blades of overlap joint are formed, and blade is connected with the sidewall of rectangular tube by eccentrically weighted shaft.
The technical problems to be solved in the utility model can also be come to realize further by the following technical programs, is provided with the block with limit blade folding angle at the sidewall of rectangular tube outlet air end.
The technical problems to be solved in the utility model can also be come to realize further by the following technical programs, and two blades and the square tube sidewall joint that are positioned at unidirectional blade grid both sides are provided with the blend stop preventing return air.
The technical problems to be solved in the utility model can also be come to realize further by the following technical programs, the air intake of described rectangular tube is provided with annular connecting plate, the outer rim of annular connecting plate connects with valve interior wall, and the portlet of described reducer pipe is docked with the inner edge of annular slab.
The utility model is when blower fan is opened, and gas imports in square tube by reducer pipe, is blown afloat by the built-in blade in square tube; When blower fan cuts out, because blade and axle adopt eccentric connection, under gravity, automatically fall closed, a small amount of wind of backflow is blocked by ring flat-plate, blend stop blade, realizes air self-locking.Compared with prior art, the utility model can be used for the gas delivery system under various occasion, and gas head loss is little, and blade opening is large, lock wind is effective.
Accompanying drawing explanation
Fig. 1 is structure diagram of the present utility model;
Fig. 2 is the A direction view of Fig. 1.
Detailed description of the invention
A kind of gas delivery system introducing-type glass fiber reinforced plastic check valve, be provided with the valve body 3 made by glass reinforced plastic winding, end flanges is manufactured with at the two ends of valve body 3, wind passage was set between interior two end flanges of valve body 3, flaring reducer pipe 1 is provided with in mistake wind passage, the large port of reducer pipe 1, towards the air intake crossing wind passage, is connected with a rectangular tube 4 in the portlet crossing wind passage inner-diameter changeable pipe, is provided with the unidirectional blade grid 8 can opened towards air side in rectangular tube 4.
Described unidirectional blade grid 8 is by be arranged side by side and mutually some blades 5 of overlap joint are formed, and blade 5 is connected with the sidewall of rectangular tube by eccentrically weighted shaft.
The block 6 with limit blade folding angle is provided with at the sidewall of rectangular tube 4 outlet air end.
Two blades and the square tube sidewall joint that are positioned at unidirectional blade grid 8 both sides are provided with the blend stop 7 preventing return air.
The air intake of described rectangular tube 4 is provided with annular connecting plate 2, and the outer rim of annular connecting plate 2 connects with valve interior wall, and the portlet of described reducer pipe is docked with the inner edge of annular slab.
Produce summary:
Single-piece production: according to drawing and applying working condition, carries out Mould Machining and selection, the outsourcing of connecting axle and processing; Make fiberglass valve body, paste flange, make reducer pipe, ring flat-plate, blade, square tube etc.;
Assembling: connecting square pipes, ring flat-plate, line perforate, assemble blade, entirety pushes in valve body, bonding; Reducer pipe is pushed in valve body bonding, finally process, mopping, inspection, warehouse-in.
Principle:
By at the built-in reducer pipe of valve body, the wind that blower fan blows out is imported in square air door (square tube), the fiberglass blade be stacked between two is fully opened, block is set in the front upper place of the blade opened, automatic fall-back during to ensure to shut down; During shutdown, blade gravitate, automatic fall-back, two two-phase pressures, arrange blend stop, block gas backstreaming as far as possible inside and outside blade two ends.It should be noted that, blade and axle adopt the eccentric mode (axle is intermediate rectangular, and two is cylindrical) be connected, and utilize lever principle to make its folding freely; Adopt circle side's transition of reducer pipe and square tube, both reduced friction loss, and ensured again the abundant opening and closing of blade, leak out few.
When blower fan is opened, gas imports in square tube through reducer pipe, and blade is opened to maximum spacing (close to 90 °) automatically; After blower fan stops, under gravity, automatic fall-back also compresses blade automatically between two, and owing to being provided with block, the retrace of ring flat-plate in addition, lock wind effect is better, and there will not be blade overturn and cause the situation of not return to occur.Product can be used for various gas conveying occasion, and as central air-conditioning, chemical emission, flue gas etc., its effect is unidirectional conveying.
Claims (5)
1. a gas delivery system introducing-type glass fiber reinforced plastic check valve, it is characterized in that: be provided with the valve body made by glass reinforced plastic winding, end flanges is manufactured with at the two ends of valve body, wind passage was set between two end flanges in valve body, flaring reducer pipe is provided with in mistake wind passage, the large port of reducer pipe, towards the air intake crossing wind passage, is connected with a rectangular tube in the portlet crossing wind passage inner-diameter changeable pipe, is provided with the unidirectional blade grid can opened towards air side in rectangular tube.
2. gas delivery system introducing-type glass fiber reinforced plastic check valve according to claim 1, is characterized in that: described unidirectional blade grid is by be arranged side by side and mutually some blades of overlap joint are formed, and blade is connected with the sidewall of rectangular tube by eccentrically weighted shaft.
3. gas delivery system introducing-type glass fiber reinforced plastic check valve according to claim 1, is characterized in that: two blades and the square tube sidewall joint that are positioned at unidirectional blade grid both sides are provided with the blend stop preventing return air.
4. gas delivery system introducing-type glass fiber reinforced plastic check valve according to claim 1, is characterized in that: be provided with the block with limit blade folding angle at the sidewall of rectangular tube outlet air end.
5. gas delivery system introducing-type glass fiber reinforced plastic check valve according to claim 1, it is characterized in that: the air intake of described rectangular tube is provided with annular connecting plate, the outer rim of annular connecting plate connects with valve interior wall, and the portlet of described reducer pipe is docked with the inner edge of annular slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420776617.8U CN204300438U (en) | 2014-12-11 | 2014-12-11 | Gas delivery system introducing-type glass fiber reinforced plastic check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420776617.8U CN204300438U (en) | 2014-12-11 | 2014-12-11 | Gas delivery system introducing-type glass fiber reinforced plastic check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204300438U true CN204300438U (en) | 2015-04-29 |
Family
ID=53105979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420776617.8U Expired - Fee Related CN204300438U (en) | 2014-12-11 | 2014-12-11 | Gas delivery system introducing-type glass fiber reinforced plastic check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204300438U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111396346A (en) * | 2020-03-19 | 2020-07-10 | 浙江上风高科专风实业有限公司 | Check valve convenient to control for roof type fan |
-
2014
- 2014-12-11 CN CN201420776617.8U patent/CN204300438U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111396346A (en) * | 2020-03-19 | 2020-07-10 | 浙江上风高科专风实业有限公司 | Check valve convenient to control for roof type fan |
| CN111396346B (en) * | 2020-03-19 | 2021-02-19 | 浙江上风高科专风实业有限公司 | Check valve convenient to control for roof type fan |
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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: 20150429 Termination date: 20211211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |