CN2738154Y - Air constant flow valve - Google Patents
Air constant flow valve Download PDFInfo
- Publication number
- CN2738154Y CN2738154Y CN 200420105031 CN200420105031U CN2738154Y CN 2738154 Y CN2738154 Y CN 2738154Y CN 200420105031 CN200420105031 CN 200420105031 CN 200420105031 U CN200420105031 U CN 200420105031U CN 2738154 Y CN2738154 Y CN 2738154Y
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- CN
- China
- Prior art keywords
- air
- adjusting plate
- valve
- elastic adjusting
- air current
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- Expired - Fee Related
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- Safety Valves (AREA)
Abstract
The utility model relates to an air flow control valve, in particular to an air constant flow valve which can automatically adjust according to air current speed to obtain constant air inputting quantity. The utility model comprises a valve and an air current opening. The valve wall on the lower end in the air current opening is fixed with an elastic adjusting plate of which one end is fixed on the valve wall on the lower end and the other end extends to the inlet of the air current opening. When the air current speed on the inlet is enlarged to cause the air pressure on the right and reverse surfaces of the elastic adjusting plate to be changed, the elastic adjusting plate is deformed. The elastic adjusting plate is upward tilted on the end of the inlet in order to reduce the section area of the air inlet opening on the inlet to realize constant air current quantity passing through the valve. The utility model has simple structure and high control precision on constant air current quantity.
Description
Affiliated technical field
The utility model is a kind of gas flow control valve, particularly can regulate automatically according to air velocity, makes air inflow reach constant gas permanent flow valve.
Background technology
It is artificially when equipment is installed to regulate or according to a fixed value of experience setting, make intake reach constant as far as possible that the air port of present existing use, the air quantity of airduct are regulated.As the building ventilating opening, the ventilating opening of heating air conditioning etc. all adopt blade to transfer wind.This mode generally is the size of manual adjustments blade pitch angle, the air quantity that intake is reached set.Its shortcoming is can not be according to the change of environmental condition when throughput change (variations of air inlet wind speed) and the automatic constant charge flow rate, as keeping constant intake need people for readjusting.And prior art can not satisfy the self balancing requirement of each regional ventilation volume when independent ventilation zone is carried out ventilation.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of and can regulate air inlet flow area size automatically according to the air intake vent change of wind velocity, makes air inflow reach constant gas permanent flow valve.
Solution of the present utility model is: a kind of gas permanent flow valve, comprise valve wall and airflow orifice, be characterized in fixing an elastic adjusting plate on the lower end valve wall in the airflow orifice, adjustable plate one end is fixed on the valve wall of lower end, the oblique airflow orifice porch that reaches of the other end.Its operation principle is: when gas flow through the gas permanent flow valve, in the porch, a part of gas was lived by the elastic adjusting plate shelves, can not pass through, and another part gas enters the gas permanent flow valve by the porch of not lived by the elastic adjusting plate control, flows out from the exit.When the gas flow rate of porch increases, gas flow will cause the air pressure change on positive and negative two faces of elastic adjusting plate, thereby cause the elastic adjusting plate distortion, this end upwarps in the porch to make elastic adjusting plate, reaches the sectional area that dwindles place, gas access air inlet.Increase though enter the wind speed of air inlet, the air inlet sectional area reduces, and feasible gas flow by the gas permanent flow valve remains unchanged, thereby reaches constant flow rate.Gas access place wind speed is big more, and it is big more to make that elastic adjusting plate this end at the place, gas access upwarps amplitude, and corresponding air inlet is also just more little, remains the constant of air inlet total amount.Along with the porch wind speed reduces, pressure also reduces below the elastic adjusting plate, and elastic adjusting plate is located the amplitude that this end upwarps and reduced accordingly in the gas access, and the air inlet sectional area increases thereupon, makes air inflow keep constant.
In the solution of the present utility model, elastic adjusting plate reaches the position of airflow orifice porch one end on the center line of cross section, airflow orifice porch, and elastic adjusting plate can be compared, responsive induction air flow velocity variations, better reach the size of regulating air inlet, make air inflow keep constant.
In the solution of the present utility model, can in airflow orifice, connect a stage clip on the lower end valve wall, stage clip one end is fixed on the valve wall, the other end is pressed in the adjustable plate upper surface, stage clip with being along with elastic adjusting plate uses for a long time, elasticity decline, the elasticity of stage clip will make adjustable plate play the effect of regulating air inlet port size, make air inflow keep constant.
Fix an elastic adjusting plate on the lower end valve wall of the utility model in airflow orifice, adjustable plate one end is fixed on the valve wall of lower end, the oblique airflow orifice porch that reaches of the other end, when corresponding gas flow rate along with the porch increases, to cause the air pressure change on positive and negative two faces of elastic adjusting plate, make the elastic adjusting plate distortion, this end upwarps elastic adjusting plate in the porch, thereby dwindle the sectional area of place, gas access air inlet, reach the gas flow that enters the gas permanent flow valve and remain unchanged, realize the constant gas amount.The utility model is simple in structure, constant gas amount control accuracy height.
Description of drawings
The utility model can be described further in conjunction with the accompanying drawings
Fig. 1 is the utility model example structure schematic diagram.
Wherein: 1-valve wall, 2-airflow orifice, 3-elastic adjusting plate, 4-stage clip, A-porch air-flow, B-exit air-flow.
Embodiment
The utility model embodiment as shown in Figure 1, the gas permanent flow valve comprises valve wall 1 and airflow orifice 2, fix an elastic adjusting plate 3 on the lower end valve wall 1 in airflow orifice 2, adjustable plate 3 one ends are fixed on the lower end valve wall 1, the other end is oblique to reach airflow orifice 2 porch, and on the center line in cross section, porch, connects a stage clip 4 on the lower end valve wall 1 in airflow orifice 2, stage clip 4 one ends are fixed on the valve wall 1, and the other end is pressed in elastic adjusting plate 3 upper surface middle part.
Claims (4)
1, a kind of gas permanent flow valve, comprise valve wall (1) and airflow orifice (2), it is characterized in that fixing an elastic adjusting plate (3) on the lower end valve wall (1) in the airflow orifice (2), adjustable plate (3) one ends are fixed on the lower end valve wall (1), oblique airflow orifice (2) porch that reaches of the other end.
2, gas permanent flow valve according to claim 1 is characterized in that elastic adjusting plate (3) reaches the position of airflow orifice (2) porch one end on the center line of airflow orifice (2) porch.
3, gas permanent flow valve according to claim 1 and 2 is characterized in that lower end valve wall (1) is gone up connection one stage clip (4) in airflow orifice (2), and stage clip (4) one ends are fixed on the valve wall (1), and the other end is pressed in elastic adjusting plate (3) upper surface.
4, gas permanent flow valve according to claim 3 is characterized in that stage clip (4) one ends are fixed on the valve wall (1), and the other end is pressed in adjustable plate (3) middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420105031 CN2738154Y (en) | 2004-11-15 | 2004-11-15 | Air constant flow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420105031 CN2738154Y (en) | 2004-11-15 | 2004-11-15 | Air constant flow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2738154Y true CN2738154Y (en) | 2005-11-02 |
Family
ID=35348062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420105031 Expired - Fee Related CN2738154Y (en) | 2004-11-15 | 2004-11-15 | Air constant flow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2738154Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108067067A (en) * | 2016-11-16 | 2018-05-25 | 浙江群实王网络科技有限公司 | A kind of roof air cleaning unit |
| CN110391067A (en) * | 2019-07-21 | 2019-10-29 | 福建安顺变压器有限公司 | A kind of Wind-cooling type dry-type transformer |
| CN112845077A (en) * | 2020-12-31 | 2021-05-28 | 昌群精细工业（宜昌）有限公司 | Powder material screening plant |
| CN112957761A (en) * | 2021-02-02 | 2021-06-15 | 南京工业大学 | Cluster type rectifying tower |
| CN114215608A (en) * | 2021-12-17 | 2022-03-22 | 中国航发沈阳发动机研究所 | Cooling hole structure capable of self-adapting to pressure difference |
-
2004
- 2004-11-15 CN CN 200420105031 patent/CN2738154Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108067067A (en) * | 2016-11-16 | 2018-05-25 | 浙江群实王网络科技有限公司 | A kind of roof air cleaning unit |
| CN110391067A (en) * | 2019-07-21 | 2019-10-29 | 福建安顺变压器有限公司 | A kind of Wind-cooling type dry-type transformer |
| CN110391067B (en) * | 2019-07-21 | 2022-05-31 | 福建安顺变压器有限公司 | Air-cooled dry-type transformer |
| CN112845077A (en) * | 2020-12-31 | 2021-05-28 | 昌群精细工业（宜昌）有限公司 | Powder material screening plant |
| CN112845077B (en) * | 2020-12-31 | 2022-11-15 | 昌群精细工业（宜昌）有限公司 | Powder material screening plant |
| CN112957761A (en) * | 2021-02-02 | 2021-06-15 | 南京工业大学 | Cluster type rectifying tower |
| CN114215608A (en) * | 2021-12-17 | 2022-03-22 | 中国航发沈阳发动机研究所 | Cooling hole structure capable of self-adapting to pressure difference |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |