CN2739526Y - Feedback type self-adaptive gas constant flow control valve - Google Patents
Feedback type self-adaptive gas constant flow control valve Download PDFInfo
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- CN2739526Y CN2739526Y CN 200420105030 CN200420105030U CN2739526Y CN 2739526 Y CN2739526 Y CN 2739526Y CN 200420105030 CN200420105030 CN 200420105030 CN 200420105030 U CN200420105030 U CN 200420105030U CN 2739526 Y CN2739526 Y CN 2739526Y
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- feedback
- feedback pressure
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- valve seat
- sliding panel
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 38
- 238000006757 chemical reactions by type Methods 0.000 claims description 10
- 238000009423 ventilation Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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Abstract
The utility model relates to a gas flow control valve especially can make the air input reach invariable feedback formula self-adaptation gas constant flow control valve according to air speed automatically regulated. Including valve seat and airflow opening, be connected with feedback pressure adjusting device on the valve seat, respond to the change of entering airflow opening entrance wind speed at any time through the feedback airflow channel to start the regulating plate and adjust the air inlet sectional area of admitting air, the quantity of gas that reaches entering airflow opening keeps unchangeable, realizes the constant flow, the utility model discloses simple structure, invariable airflow control accuracy is high.
Description
Affiliated technical field:
The utility model is a kind of gas flow control valve, particularly can regulate automatically according to gas velocity, makes air inflow reach constant reaction type Self-adapting Air Constant 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 baseline when throughput change (variations of air intake opening 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:
Utility model overcome above-mentioned the deficiencies in the prior art dried, provide a kind of and can regulate air inlet flow area size automatically according to the air inlet change of wind velocity, make air inflow reach constant reaction type Self-adapting Air Constant Flow Valve.
In the solution of the present utility model, a kind of reaction type Self-adapting Air Constant Flow Valve, comprise valve seat and airflow orifice, be characterized in being connected with on the valve seat feedback pressure regulating device, the feedback pressure regulating device is regulated the chamber by feedback pressure, feedback pressure is regulated the sliding panel that slides in the chamber, the spring that the pulling sliding panel moves in feedback pressure is regulated the chamber, one end is fixed on the sliding panel, the other end constitutes by adjustable plate and the feedback gas circulation road that the valve seat fluting reaches in the airflow orifice, wherein the air intake opening of feedback gas circulation road is near the porch of airflow orifice, and at grade, the feedback gas circulation road leads to feedback pressure to be regulated in the chamber.
Its principle of work is: air communication is crossed the airflow orifice porch and is flowed into airflow orifice, flows out from the airflow orifice exit, simultaneously, also will have air-flow to enter feedback pressure from the feedback gas circulation road in the airflow orifice porch and regulate the chamber.When the gas flow rate of porch increases, the air pressure that enters the feedback gas circulation road also increases, the air pressure that feedback pressure is regulated in the chamber increases, two face air pressure of sliding panel are unbalanced, so the air pressure in the feedback pressure adjusting chamber will promote sliding panel and move, the feasible adjustable plate that fixes with sliding panel moves to the airflow orifice center position, reach and dwindle airflow orifice air inlet sectional area, though entering the wind speed of gas port increases, but the air intake opening sectional area reduces, make the gas flow that enters ventilation space remain unchanged, thereby reach constant rate.The gas access wind speed is big more, and the gaseous tension that feedback pressure is regulated in the chamber is also big more, and it is dark more that adjustable plate stretches to airflow orifice, and corresponding air intake opening is also just more little, remains the constant of charge flow rate.Along with the porch wind speed reduces, feedback pressure is regulated the chamber internal gas pressure and is lowered, and under spring action, sliding panel will drive adjustable plate and withdraw from airflow orifice, and the airflow orifice sectional area increases thereupon, makes air inflow keep constant.
In the solution of utility model, the chamber wall that feedback pressure is regulated the chamber is provided with chute, on sliding panel, be fixed with guide pin, guide pin reaches interior the moving of chute on the wall of chamber, can reduce the resistance that sliding panel moves like this in feedback pressure is regulated the chamber, enhancing helps sliding panel drive adjustable plate and moves the susceptibility that wind speed changes.
The utility model is connected with the feedback pressure regulating device on valve seat, at any time respond to by the feedback gas circulation road and to enter airflow orifice porch wind speed and change, start adjustable plate and regulate airflow orifice air inlet sectional area, reaching the gas flow that enters airflow orifice remains 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 further specify in conjunction with the accompanying drawings.
Fig. 1 is the utility model embodiment 1 structural representation
Fig. 2 is Fig. 1 vertical view
Fig. 3 is the utility model embodiment 2 structural representations
Fig. 4 is Fig. 3 vertical view
Wherein, 1 is valve seat, and 2 is airflow orifice, and 3 are feedback pressure adjusting chamber, and 4 is sliding panel, and 5 is spring, and 6 is adjustable plate, and 7 is the feedback gas circulation road, and A is the porch air-flow, and B is the exit air-flow.
Embodiment:
The utility model embodiment 1 as shown in Figure 1 and Figure 2, the reaction type Self-adapting Air Constant Flow Valve comprises valve seat 1 and airflow orifice 2, be connected with two feedback pressure regulating devices in valve seat 1 symmetria bilateralis, the feedback pressure regulating device is regulated chamber 3 by feedback pressure, feedback pressure is regulated the sliding panel 4 that slides in the chamber 3, being connected feedback pressure regulates behind 3 cavitys of chamber and the spring 5 between the sliding panel 4, one end is fixed on the sliding panel 4, and the other end constitutes by adjustable plate 6 and the feedback gas circulation road 7 that valve seat 1 fluting reaches in the airflow orifice 2.Wherein: the air intake opening of two feedback gas circulation roads 7 is located at the both sides, front and back of the porch of airflow orifice 2 respectively, and with the porch of airflow orifice 2 at grade, feedback gas circulation road 7 leads to feedback pressure to be regulated in the chamber 3, and spring 5 axis and adjustable plate 6 are at grade.
The utility model embodiment 2 as shown in Figure 3, Figure 4, the reaction type Self-adapting Air Constant Flow Valve comprises valve seat 1 and airflow orifice 2, on valve seat 1 bottom, be symmetrically connected with two feedback pressure regulating devices, shared feedback gas circulation road 7 of two feedback pressure regulating devices and feedback pressure are regulated chamber 3, fixedly 5 liang of adjustable plate 6 one ends of extension spring are fixing with two sliding panels 4 respectively between the sliding panel 4 of two feedback pressure regulating devices, and the other end reaches in the airflow orifice 2 by the fluting that feedback pressure is separately regulated on the 3 chamber walls of chamber respectively.Valve seat 1 both sides and two feedback pressure regulating devices form two air intake vents respectively in the present embodiment, and two adjustable plates 6 are regulated its corresponding airflow orifice 2 sectional areas separately, and feedback gas circulation road 7 leads to feedback pressure regulates chamber 3.
Claims (4)
1, a kind of reaction type self-adaptation gas constant rate operation valve, comprise valve seat (1) and airflow orifice (2), it is characterized in that being connected with the feedback pressure regulating device on the valve seat (1), the feedback pressure regulating device is regulated chamber (3) by feedback pressure, feedback pressure is regulated the sliding panel (4) that slides in the chamber (3), the spring (5) that pulling sliding panel (4) moves in feedback pressure is regulated chamber (3), one end is fixed on the sliding panel (4), and the other end constitutes by adjustable plate (6) and the feedback gas circulation road (7) that valve seat (1) fluting reaches in the airflow orifice (2).Wherein: the air intake opening of feedback gas circulation road (7) is near the porch of airflow orifice (2), and at grade, feedback gas circulation road (7) leads to feedback pressure to be regulated in the chamber (3).
2, reaction type Self-adapting Air Constant Flow Valve according to claim 1, it is characterized in that being connected with two feedback pressure regulating devices in valve seat (1) symmetria bilateralis, the air intake opening of the feedback gas circulation road (7) of two feedback pressure regulating devices is located at the both sides, front and back of airflow orifice (2) porch respectively, spring (5) one ends are fixed on the sliding panel (4), the other end is fixed on feedback pressure and regulates on the cavity of chamber (3), with adjustable plate (6) on same plane, adjustable plate (6) one ends are fixed on the sliding panel (4), and the other end reaches in the airflow orifice (2) by valve seat (1) fluting.
3, reaction type Self-adapting Air Constant Flow Valve according to claim 1, it is characterized in that on valve seat (1) bottom, being symmetrically connected with two feedback pressure regulating devices, the shared feedback gas circulation road (7) of two feedback pressure regulating devices and feedback pressure chamber (3), fixedly extension spring (5) between the sliding panel of two feedback pressure regulating devices (4), two adjustable plates (6) one ends are fixing with two sliding panels (4) respectively, and the other end reaches in the airflow orifice (2) by the fluting on the chamber wall in feedback pressure adjusting chamber (3) separately respectively.
4, according to claim 1,2 or 3 described reaction type Self-adapting Air Constant Flow Valve, it is characterized in that on the chamber wall in feedback pressure adjusting chamber (3), being provided with chute, be fixed with guide pin on sliding panel (4), guide pin reaches interior the moving of chute on the wall of chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420105030 CN2739526Y (en) | 2004-11-15 | 2004-11-15 | Feedback type self-adaptive gas constant flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420105030 CN2739526Y (en) | 2004-11-15 | 2004-11-15 | Feedback type self-adaptive gas constant flow control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2739526Y true CN2739526Y (en) | 2005-11-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420105030 Expired - Fee Related CN2739526Y (en) | 2004-11-15 | 2004-11-15 | Feedback type self-adaptive gas constant flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2739526Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351901A (en) * | 2016-08-31 | 2017-01-25 | 北京精密机电控制设备研究所 | Constant flow control valve composed of damping network and two stages slide valves |
| CN109273339A (en) * | 2018-09-18 | 2019-01-25 | 惠科股份有限公司 | Reaction chamber, dry etching equipment and etching method |
| CN111186122A (en) * | 2020-03-03 | 2020-05-22 | 王弯 | Blow molding mold for plastic production |
| CN111720390A (en) * | 2019-10-08 | 2020-09-29 | 中国科学院上海微系统与信息技术研究所 | Fluid flow velocity stabilizing system |
-
2004
- 2004-11-15 CN CN 200420105030 patent/CN2739526Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351901A (en) * | 2016-08-31 | 2017-01-25 | 北京精密机电控制设备研究所 | Constant flow control valve composed of damping network and two stages slide valves |
| CN109273339A (en) * | 2018-09-18 | 2019-01-25 | 惠科股份有限公司 | Reaction chamber, dry etching equipment and etching method |
| CN111720390A (en) * | 2019-10-08 | 2020-09-29 | 中国科学院上海微系统与信息技术研究所 | Fluid flow velocity stabilizing system |
| CN111720390B (en) * | 2019-10-08 | 2021-08-17 | 中国科学院上海微系统与信息技术研究所 | Fluid flow velocity stabilizing system |
| CN111186122A (en) * | 2020-03-03 | 2020-05-22 | 王弯 | Blow molding mold for plastic production |
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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 |