CN2789668Y - Wind pressure type self-adaptive gas constant flow valve - Google Patents
Wind pressure type self-adaptive gas constant flow valve Download PDFInfo
- Publication number
- CN2789668Y CN2789668Y CN 200520033940 CN200520033940U CN2789668Y CN 2789668 Y CN2789668 Y CN 2789668Y CN 200520033940 CN200520033940 CN 200520033940 CN 200520033940 U CN200520033940 U CN 200520033940U CN 2789668 Y CN2789668 Y CN 2789668Y
- Authority
- CN
- China
- Prior art keywords
- adjustable plate
- valve seat
- wind pressure
- constant flow
- air
- 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.)
- Expired - Fee Related
Links
- 239000004020 conductor Substances 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 abstract description 5
- 230000035945 sensitivity Effects 0.000 abstract 1
- 238000009423 ventilation Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The utility model relates to a gas flow control valve especially can be according to the admission speed size, the invariable wind pressure formula self-adaptation gas constant flow valve of total amount of automatically regulated admitting air. The valve seat is internally provided with a chute, an adjusting plate is arranged in the chute, one end of the adjusting plate is connected by a spring fixed on the valve seat, and the other end of the adjusting plate extends into the airflow opening and bends downwards. The utility model discloses along with air current mouth department wind speed increase, reduce, regulating plate automatically regulated makes the sectional area that admits air reduce, increase to guarantee the invariant of air input in the unit interval. The utility model discloses simple structure, automatic control precision is high, and sensitivity is high.
Description
Affiliated technical field
The utility model is a kind of gas constant current valve, particularly can regulate automatically according to air velocity, makes air inflow reach constant wind pressure 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 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 wind pressure type self-adapting air constant flow valve.
Solution of the present utility model is: a kind of wind pressure type self-adapting air constant flow valve, comprise valve seat and airflow orifice, it is characterized in that having in the valve seat skewed slot, place adjustable plate in the skewed slot, adjustable plate one end is connected by the spring that is fixed on the valve seat, and the other end reaches in the airflow orifice and is bent downwardly.Its operation principle is: a gas part enters from the porch of airflow orifice and flows out from the exit of airflow orifice, and another part is conditioned plate and blocks.When the wind speed of airflow orifice porch increases, gas flow will cause that adjustable plate reaches the air pressure change on positive and negative two faces of airflow orifice place part, the pulling force along continuous straight runs that makes adjustable plate overcome back-moving spring moves, thereby regulate airflow orifice porch actual internal area, conducting sectional area in airflow orifice porch is reduced, guaranteed the constant of specific discharge.When the wind speed of airflow orifice porch reduces, gas flow will cause the air pressure change on the adjustable plate tow sides again, adjustable plate is moved to the spring direction under the pulling of back-moving spring, directly adjust actual internal area, the air intake sectional area of airflow orifice porch is increased, thereby guaranteed the constant of unit interval flow.The utility model is by pressure reduction and back-moving spring acting in conjunction, and the automatic regulating valve door reaches the gas flow of automatic constant by valve in the size of air inlet actual internal area.
Can pass through the valve seat fixed guide in the adjustable plate two sides in the solution of the present utility model, be provided with the counterpart that cooperatively interacts with two guide rails in the adjustable plate two sides.Guide rail of the present utility model can be a conductor rope, is fixed with the slip ring that cooperates with conductor rope in the adjustable plate side.Be provided with guide rail in the adjustable plate both sides, adjustable plate is provided with the counterpart that cooperatively interacts with two guide rails and its objective is that being convenient to adjustable plate steadily moves.
Can reach in the airflow orifice part at adjustable plate in the solution of the present utility model and be fixed with and the consistent spoiler of skewed slot direction.The purpose that spoiler is set is to slow down the adjustable plate positive pressure, and adjustable plate is steadily moved.
The utility model makes adjustable plate in the crooked and oblique mouth that reaches air-flow in airflow orifice place, in the increase of air inlet wind speed, when reducing, the double-edged pressure reduction of adjustable plate changes will cause that adjustable plate moves, and dwindle thereby reach, increase the air inlet sectional area, make that the interior maintenance of air inflow unit's unit interval is constant.The present invention is simple in structure, and constant gas amount control accuracy height is highly sensitive.
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.
Fig. 2 is the vertical view of Fig. 1.
Wherein: the 1-valve seat, the 2-airflow orifice, the 3-skewed slot, the 4-adjustable plate, the 5-spring, the 6-conductor rope, 7 are-spoiler, B-porch air-flow, C-exit air-flow.
Embodiment
The utility model embodiment as shown in Figure 1 and Figure 2, the wind pressure type self-adapting air constant flow valve comprises valve seat 1 and airflow orifice 2, have skewed slot 3 in the valve seat 1, place adjustable plate 4 in the skewed slot 3, adjustable plate 4 one ends are connected by the spring 5 that is fixed on the valve seat 1, the other end reaches in the airflow orifice 2 and is bent downwardly, adjustable plate 4 two sides are fixed with conductor rope 6 by valve seat 1, be fixed with the slip ring that cooperatively interacts with conductor rope 6 in adjustable plate 4 two sides, reach at adjustable plate 4 and be provided with in airflow orifice 2 parts and the consistent spoiler 7 of skewed slot 3 directions.
Claims (4)
1, a kind of wind pressure type self-adapting air constant flow valve, comprise valve seat (1) and airflow orifice (2), it is characterized in that having in the valve seat (1) skewed slot (3), place adjustable plate (4) in the skewed slot (3), adjustable plate (4) one ends are connected by the spring (5) that is fixed on the valve seat (1), and the other end reaches in the airflow orifice (2) and is bent downwardly.
2, wind pressure type self-adapting air constant flow valve according to claim 1 is characterized in that elastic adjusting plate (4) two sides are fixed with guide rail (6) by valve seat (1), are provided with the counterpart that cooperatively interacts with two guide rails (6) in adjustable plate (4) two sides.
3, wind pressure type self-adapting air constant flow valve according to claim 2 is characterized in that adjustable plate (4) two sides are a conductor rope by the fixing guide rail (6) of valve seat (1), are fixed with the slip ring that cooperates with conductor rope in adjustable plate (4) side.
4,, it is characterized in that in adjustable plate (4) reaches airflow orifice (2) part, being fixed with and the consistent spoiler of skewed slot (3) direction (7) according to claim 1,2 or 3 described wind pressure type self-adapting air constant flow valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520033940 CN2789668Y (en) | 2005-04-18 | 2005-04-18 | Wind pressure type self-adaptive gas constant flow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520033940 CN2789668Y (en) | 2005-04-18 | 2005-04-18 | Wind pressure type self-adaptive gas constant flow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2789668Y true CN2789668Y (en) | 2006-06-21 |
Family
ID=36790001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520033940 Expired - Fee Related CN2789668Y (en) | 2005-04-18 | 2005-04-18 | Wind pressure type self-adaptive gas constant flow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2789668Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114159907A (en) * | 2021-11-15 | 2022-03-11 | 南昌大学 | Staggered filtration-end filtration composite dust removal system and control method thereof |
-
2005
- 2005-04-18 CN CN 200520033940 patent/CN2789668Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114159907A (en) * | 2021-11-15 | 2022-03-11 | 南昌大学 | Staggered filtration-end filtration composite dust removal system and control method thereof |
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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 |