CN2054099U - Regulating valve for intake of changing wind rate fan - Google Patents
Regulating valve for intake of changing wind rate fan Download PDFInfo
- Publication number
- CN2054099U CN2054099U CN 89213633 CN89213633U CN2054099U CN 2054099 U CN2054099 U CN 2054099U CN 89213633 CN89213633 CN 89213633 CN 89213633 U CN89213633 U CN 89213633U CN 2054099 U CN2054099 U CN 2054099U
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- China
- Prior art keywords
- regulating valve
- inlet
- blade
- changing wind
- fan
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Abstract
The utility model discloses a regulating valve for the inlet of a changing wind rate fan. The regulating valve for the inlet of a changing wind rate fan is an energy-saving device which is used in the changing wind rate fan of an air conditioning system. The regulating valve for the inlet of a changing wind rate fan is connected with automation elements on the outer surface. The regulating valve for the inlet of a changing wind rate fan can automatically regulate the characteristic of a fan to achieve the purpose of energy saving. The regulating valve for the inlet of a changing wind rate fan is characterized in that the vane of the regulating valve for the inlet of a changing wind rate fan and a transmission part are arranged inside air inlets on two sides of the fan, and the engaging transmission of a gear and a rack is adopted by the rotary mechanism of the vane. Therefore, the regulating valve for the inlet of a changing wind rate fan has small air resistance, high transmission precision, easy operation, firm vane, low noise, and good energy-saving effect.
Description
Variable air flow fans entrance modulating valve relates to a kind of energy saving device of air-conditioning draught fan, is used in the air-conditioning system variable air flow blower fan.
Existing air-conditioning system variable air flow blower fan, a kind of is to change the blower fan revolution by changing the motor revolution, and to realize the change of air quantity, the shortcoming of this method is the speed governing and the control system complexity of motor, and once investment is too big; Another kind is to change blower fan structure, and the place adds modulating valve at fans entrance, to change the characteristic of blower fan itself, reaches the purpose that changes the fan delivery variation.Advise the inlet modulating valve of sharp company as the U.S., though this modulating valve also can be realized the change of air quantity, but because this valve is installed in outside the blower fan import, it is big to take up space, and resistance of air is big, uses the connecting rod transmission, degree of regulation is low, blade is easily loosening when high velocity air passes through, and noise is bigger, and all consumption of energy is big for these.
The utility model is the improvement and the development of the U.S. being advised power company variable air flow fans entrance modulating valve, and purpose is to provide a kind of resistance of air little, the transmission accuracy height, easy operating, blade is firm, and noise is little, and energy-saving effect is a kind of novel variable air flow fans entrance modulating valve better.
The purpose of this utility model can reach by following measure: this valve is installed in intake grill place, blower fan (double-sucking type) both sides, mainly by operating grip, the main transmission bar connects with crank and connecting rod ball pivot between the two, and guide vane (active and passive blade) and rotating machinery thereof are formed.The blade rotating machinery of this valve adopts the wheel and rack engagement driving, promptly on each blade, all be fixed with major axis, all be fixed with gear on each major axis, this gear and the tooth bar engagement that is fixed on the rotating disk, rotating disk with three support roller holders, whole blade and driving mechanism wrap in the air inlet spiral case, promptly be contained on the cylindrical structure of suction port inner face, design not only can reduce the resistance (outer blower fan compares with being contained in casing) that air-flow enters the fans entrance place like this, and can improve air-flow flowing in spiral case (can weaken vortex flow flows backwards with control).The principle that changes air quantity with the variable air flow blower fan of this valve is to realize by the different amount that the guide vane on the valve is opened, inlet guide vance not only makes air-flow enter draught fan impeller generation before and prewhirls, can also reduce the air quantity that impeller is carried, reach the characteristic that changes blower fan, promptly the different opening angles of blade all have one group of corresponding fan performance curve.A large amount of evidences: in certain air quantity excursion, along with the minimizing of air quantity, the corresponding minimizing of its input power, thus reach the purpose of saving energy.The action of guide vane is achieved in that when blower fan adopts adjusting automatically, when changing as the heat load of air-conditioned room, sensing element (as temperature transducer or pressure transducer) sends electric signal by secondary meter, the action of control electric actuator, the operating stem of electric actuator links to each other with the operating grip of inlet modulating valve, so electric actuator one action, just drive the rotation of main transmission bar, one end of main transmission bar links to each other with the active major axis of inlet modulating valve, so the active blade that is connected as a single entity with the active major axis rotates, initiatively the gear on the major axis also rotates, tooth bar engagement on gear and the rotating disk, so gear rotates and just drives dial rotation, also just drive all passive blades and rotate.
The utility model describes in further detail below in conjunction with drawings and Examples:
Fig. 1 is the outside driving mechanism schematic representation of this inlet modulating valve
Fig. 2 is the one group of blade and the driving mechanism schematic representation of this inlet modulating valve inside
Respectively adorn a modulating valve with reference to accompanying drawing 1,2 at intake grill place, blower fan both sides, this valve is mainly by operating grip (1), main transmission bar (3) uses crank (2), connecting rod (4) ball pivot to connect between the two, and guide vane (5) (active blade and passive blade) and rotating machinery thereof are formed.The blade rotating machinery of this valve adopts gear (7) and tooth bar (8) engagement driving, promptly on each blade (5), all be fixed with major axis (6), the major axis of each blade all passes the barrel of garden tube (12), main transmission bar (3) is connected with active major axis (6), gear (7) is contained on the major axis (6), this gear (7) and tooth bar (8) engagement that is fixed on the rotating disk (9), all tooth bars (8) all are fixed on the rotating disk (9), and tooth bar (8) can be gone up at rotating disk (9) and finely tune along circumference, so that each blade rotation angle is the same, rotating disk (9) is holding in the palm with three support rollers (10), and whole blade and driving mechanism wrap in air inlet (11) spiral case.
Consider energy-saving effect, the blade of this kind inlet modulating valve is the 8-11 sheet.
The energy conservation principle of this valve is as follows: when the heat load of air-conditioned room changes, sensing element (as temperature transducer or pressure transducer) sends electric signal by secondary meter, the action of control electric actuator, the operating stem of electric actuator links to each other with the operating grip (1) of inlet modulating valve, so as long as electric signal is arranged, just can be moving by the operating grip (1) of operating stem drive inlet modulating valve, thereby drive main transmission bar (3) rotation, and then initiatively major axis (6) rotation of drive, active major axis (6), blade (5) and gear (7) three are fixed together, therefore initiatively major axis (6) rotates an angle, active blade (5) and gear (7) also rotate equal angular synchronously, and by with the tooth bar (8) of gear (7) engagement, just driving rotating disk (9) rotates, rotate so just drive all passive blades, realize the air quantity adjusting, reach purpose of energy saving.
This entrance control valve has following advantage:
1. this valve all places in the casing, can take up space less, reduces air drag, has therefore reduced power attenuation.
2. the blade major axis is contained on the cylindrical structure, can reduce the eddy current in the volute of blower, and control is flow backwards, and improves air-flow flowing in spiral case, thereby has also reduced power loss.
3. blade major axis gear, the tooth bar transmission is regulated, thus the degree of regulation height, and easy operating.
4. blade is firm, and loosening when high velocity air passes through, it is little to produce noise.
Claims (2)
1, a kind of air-conditioning system variable air flow fans entrance modulating valve that is used for, mainly by operating grip (2), main transmission bar (3), both connect with crank (2), connecting rod (4), and guide vane (5) and rotating machinery thereof are formed, and it is characterized in that:
A) the blade rotating machinery adopts gear (7) and tooth bar (8) engagement driving, be all to be fixed with major axis (6) on each blade, main transmission bar (3) is connected with active major axis (6), gear (7) is contained on the major axis (6), this gear (7) and tooth bar (8) engagement that is fixed on the rotating disk (9), all tooth bars (8) all are fixed on the rotating disk (9).
B) blade and rotating machinery are contained in respectively in intake grill (11) spiral case of blower fan both sides.
C) major axis of each blade all passes the barrel of cylinder (12).
2, the inlet modulating valve of variable air flow blower fan according to claim 1 is characterized in that its blade is 8-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89213633 CN2054099U (en) | 1989-07-06 | 1989-07-06 | Regulating valve for intake of changing wind rate fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89213633 CN2054099U (en) | 1989-07-06 | 1989-07-06 | Regulating valve for intake of changing wind rate fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2054099U true CN2054099U (en) | 1990-03-07 |
Family
ID=4869568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89213633 Withdrawn CN2054099U (en) | 1989-07-06 | 1989-07-06 | Regulating valve for intake of changing wind rate fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2054099U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101178186B (en) * | 2006-11-07 | 2010-05-12 | 李宗彦 | Airflow regulating switch |
| CN104653496A (en) * | 2015-01-27 | 2015-05-27 | 浙江理工大学 | Single-double-suction adjustable centrifugal ventilator |
| CN105065334A (en) * | 2015-07-17 | 2015-11-18 | 上海通用风机股份有限公司 | Air collector allowing air volume to be adjustable |
| CN108905484A (en) * | 2018-09-26 | 2018-11-30 | 陕西富兴环保科技有限公司 | The pre- device for reducing dust of Industrial Stoves adjustable flue gas |
| CN109695930A (en) * | 2018-12-27 | 2019-04-30 | 华北电力大学（保定） | A kind of operating room ventilation amount control device |
-
1989
- 1989-07-06 CN CN 89213633 patent/CN2054099U/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101178186B (en) * | 2006-11-07 | 2010-05-12 | 李宗彦 | Airflow regulating switch |
| CN104653496A (en) * | 2015-01-27 | 2015-05-27 | 浙江理工大学 | Single-double-suction adjustable centrifugal ventilator |
| CN105065334A (en) * | 2015-07-17 | 2015-11-18 | 上海通用风机股份有限公司 | Air collector allowing air volume to be adjustable |
| CN108905484A (en) * | 2018-09-26 | 2018-11-30 | 陕西富兴环保科技有限公司 | The pre- device for reducing dust of Industrial Stoves adjustable flue gas |
| CN108905484B (en) * | 2018-09-26 | 2023-12-22 | 佛山市伊清环保工程技术有限公司 | Adjustable smoke pre-dust-settling device for industrial kiln |
| CN109695930A (en) * | 2018-12-27 | 2019-04-30 | 华北电力大学（保定） | A kind of operating room ventilation amount control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| 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 |