CN1776315A - Wind pressure type self-adaptive gas constant flow control valve - Google Patents
Wind pressure type self-adaptive gas constant flow control valve Download PDFInfo
- Publication number
- CN1776315A CN1776315A CN 200410081230 CN200410081230A CN1776315A CN 1776315 A CN1776315 A CN 1776315A CN 200410081230 CN200410081230 CN 200410081230 CN 200410081230 A CN200410081230 A CN 200410081230A CN 1776315 A CN1776315 A CN 1776315A
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- Prior art keywords
- valve seat
- adjustable plate
- control valve
- pressure type
- flow control
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- 230000001105 regulatory effect Effects 0.000 abstract description 5
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000009423 ventilation Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 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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- Safety Valves (AREA)
Abstract
The invention relates to a gas circulation control valve, in particular to a wind pressure type self-adaptive gas constant flow control valve which can automatically adjust the total amount of inlet gas to be constant according to the inlet gas speed. The air flow regulating valve consists of valve seat, airflow port, regulating plate on the valve seat and spring fixed between the regulating plate and the valve seat. According to the invention, as the wind speed at the inlet of the airflow port is increased and decreased, the adjusting plate is automatically adjusted to reduce and increase the air inlet sectional area, so that the air inlet amount in unit time is ensured to be constant. The invention has simple structure, high automatic control precision and high sensitivity.
Description
Affiliated technical field
The present invention is a kind of gas flow control valve, particularly can regulate automatically according to air velocity, makes air inflow reach constant wind-pressure type adpative gas constant flow control 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 objective of the invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of and can regulate air inlet flow area size automatically, make air inflow reach constant wind-pressure type adpative gas constant flow control valve according to an air inlet change of wind velocity.
Solution of the present invention is: a kind of wind-pressure type adpative gas constant flow control valve, comprise valve seat (1) and airflow orifice (2), it is characterized in that valve seat (1) upper ends one adjustable plate (3), adjustable plate (3) is located to be bent downwardly reaching airflow orifice (2), and the oblique porch that reaches airflow orifice (2), between the outer end of adjustable plate (3) and valve seat (1), be connected spring (4), have ventilating opening (5) at valve seat (4) object gas flow mouth (2) end.
Operation principle of the present invention is: air-flow enters from the porch of airflow orifice and flows out from the airflow orifice exit, because some oblique airflow orifice that reaches of adjustable plate, so the air-flow of an airflow orifice porch part is normal by airflow orifice, another part is conditioned the ventilating opening that air-flow that the plate shelves live opens from valve seat and flows to outer room.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 that makes adjustable plate overcome back-moving spring moves to airflow direction, adjust airflow orifice porch actual internal area thereby connect, 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, make adjustable plate under the pulling of back-moving spring outside valve seat extreme direction move, directly adjust actual internal area, the air intake sectional area of airflow orifice porch is increased, thereby guarantor unit's time flow is constant.The present invention is by pressure reduction and back-moving spring acting in conjunction, and the size of mouthful actual internal area reaches the gas flow of automatic constant by valve after the automatic regulating valve door.
The oblique airflow orifice part inclination angle Φ that reaches of adjustable plate is that self-regulation effect is best between 10 ° to 45 ° in the solution of the present invention.
Can be provided with fluting at the valve seat upper surface in the solution of the present invention, be provided with at adjustable plate and be placed on the sliding nail that slides in the valve seat fluting.Can limit the swing that adjustable plate may form in moving so on the one hand, be convenient to adjustable plate moving on valve seat on the other hand, reduce the frictional resistance between adjustable plate and the valve seat surface, improve adjusting sensitivity automatically.
Adjustable plate of the present invention is the crooked and oblique porch that reaches airflow orifice at the 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 interval is constant.The present invention is simple in structure, and constant gas amount control accuracy height is highly sensitive.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is Fig. 1 vertical view.
Wherein: 1-valve seat, 2-airflow orifice, 3-adjustable plate, 4-spring, 5-ventilating opening, A-porch air-flow, B-exit air-flow.
Embodiment
The embodiment of the invention as shown in Figure 1 and Figure 2, wind pressure type self adaptation gas constant current control valve comprises the valve seat 1 and the airflow orifice 2 of two symmetries, the adjustable plate 3 that placement on two valve seats 1 is identical, adjustable plate 3 reaches airflow orifice 2 places and is bent downwardly, and be the oblique porch that reaches airflow orifice 2,15 ° of angles with Φ, between adjustable plate 3 and valve seat 1 outer end, be connected spring 4, have ventilating opening 5 at valve seat object gas flow mouth 2 ends.
Claims (3)
1, a kind of wind-pressure type adpative gas constant flow control valve, comprise valve seat (1) and airflow orifice (2), it is characterized in that valve seat (1) upper ends one adjustable plate (3), adjustable plate (3) is located to be bent downwardly reaching airflow orifice (2), and the oblique porch that reaches airflow orifice (2), between the outer end of adjustable plate (3) and valve seat (1), be connected spring (4), have ventilating opening (5) at valve seat (4) object gas flow mouth (2) end.
2, wind-pressure type adpative gas constant flow control valve according to claim 1 is characterized in that being provided with fluting at valve seat (1) upper surface, is provided with at adjustable plate (3) and is placed on the sliding nail that slides in valve seat (1) fluting.
3, wind-pressure type adpative gas constant flow control valve according to claim 1 and 2, it is characterized in that adjustable plate (3) oblique reach airflow orifice (2) partly angle of inclination Φ be 10 °～45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410081230 CN1776315A (en) | 2004-11-15 | 2004-11-15 | Wind pressure type self-adaptive gas constant flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410081230 CN1776315A (en) | 2004-11-15 | 2004-11-15 | Wind pressure type self-adaptive gas constant flow control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1776315A true CN1776315A (en) | 2006-05-24 |
Family
ID=36765964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410081230 Pending CN1776315A (en) | 2004-11-15 | 2004-11-15 | Wind pressure type self-adaptive gas constant flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1776315A (en) |
Cited By (3)
| 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 |
| CN109282560A (en) * | 2018-11-26 | 2019-01-29 | 珠海格力电器股份有限公司 | refrigerating unit |
| CN114002388A (en) * | 2021-11-04 | 2022-02-01 | 二重（德阳）重型装备有限公司 | High-temperature garbage pyrolysis gas online monitoring system and method |
-
2004
- 2004-11-15 CN CN 200410081230 patent/CN1776315A/en active Pending
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 |
| CN109282560A (en) * | 2018-11-26 | 2019-01-29 | 珠海格力电器股份有限公司 | refrigerating unit |
| CN114002388A (en) * | 2021-11-04 | 2022-02-01 | 二重（德阳）重型装备有限公司 | High-temperature garbage pyrolysis gas online monitoring system and method |
| CN114002388B (en) * | 2021-11-04 | 2024-01-30 | 二重（德阳）重型装备有限公司 | Online monitoring system and method for pyrolysis gas of high-temperature garbage |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |