CN208750947U - A kind of high-precision volume adjusting apparatus - Google Patents
A kind of high-precision volume adjusting apparatus Download PDFInfo
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- CN208750947U CN208750947U CN201821152500.7U CN201821152500U CN208750947U CN 208750947 U CN208750947 U CN 208750947U CN 201821152500 U CN201821152500 U CN 201821152500U CN 208750947 U CN208750947 U CN 208750947U
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- air quantity
- valve
- regulating valve
- status adjustment
- pressure difference
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Abstract
The utility model discloses a kind of high-precision volume adjusting apparatus, including ventilation shaft, the accurate regulating valve of air quantity and workspace status adjustment valve are installed between the inner wall of the ventilation shaft, the accurate regulating valve two sides of air quantity are equipped with pressure difference measuring mechanism, and the pressure difference measuring mechanism is used to detect the pressure difference before and after the accurate regulating valve of air quantity.The utility model, which combines coarse adjustment (workspace status adjustment valve) with thin tuning (the accurate regulating valve of air quantity), to be adjusted, it can effectively solve the problem that the overall precision difference that existing ventilation industry air quantity is adjusted, the bad adaptability that different air quantity ranges are adjusted, the problem that precision can not be stable in adjustable range.
Description
Technical field
The utility model relates to air quantity regulation technology field, especially a kind of high-precision volume adjusting apparatus.
Background technique
The precision that air quantity is adjusted in the industries air-conditioning system such as medicine, electronics, operating room, food equals whole system
Surely, energy-saving run is most important, and air quantity is all the air force that pipeline is adjusted by the aperture of control valve, and regulating valve is to wind
The accuracy relation adjusted is measured to operation risks such as the stabilization of entire air-conditioning system, cross contamination, operating room acquired infections.So air quantity tune
The degree of regulation of regulating device is extremely important to entire air cleaning and conditioning system.
CN207111950U discloses a kind of volume damper, including valve body, blade, adjustment gear and rotary shaft, blade
In the chamber of connection valve body two sides exterior space, and it is connected with rotary shaft, rotary shaft is supported on the two sidewalls of valve body,
Rotary shaft is connected at one end through the side wall of valve body with the adjustment gear being located on the outside of valve body, can band when adjustment gear rotates
Dynamic rotary shaft rotation, to be rotated with movable vane piece, to adjust the folding angle of blade.Use intermeshing adjustment gear with right
Open form formula adjusts the folding angle of blade, increases flow adjustment range, improves degree of regulation.
CN205037522U discloses a kind of efficient air distributor for facilitating air quantity to adjust, the case for being equipped with air inlet with one
Body, high efficiency particulate air filter are arranged in the cabinet, and the bottom of box is equipped with air diffuser, which is equipped with air quantity adjusting mechanism, the wind
Amount regulating mechanism adjusts blade with air quantity adjusting rod and air quantity and connect, and to be arranged in the air quantity by rotating air quantity adjusting rod
Air quantity on regulating mechanism adjusts blade rotation, so that the angle that air quantity adjusts blade changes, reaches and adjusts air quantity variation
Purpose.This kind of air quantity adjustment structure changes position and method that original air quantity is adjusted, by efficient air distributor and volume damper
It is integrated, so that toilet is significantly reduced the working strength of debugging efforts personnel in debugging, and can effectively prevent toilet
Sealing ask.
The existing mode for adjusting valve regulation air quantity (arrow direction is wind direction).Air quantity is adjusted to be controlled by air quantity adjusting mechanism
The aperture ∠ C of volume damper piece adjusts the intracorporal draught area of valve, realizes the adjusting of air quantity.The degree of regulation of volume damper
The regulation performance that the entire air quantity of relationship is adjusted.
Under the conditions of the prior art, degree of regulation of the volume damper in different operating region is different.Different air quantity
The operating accuracy range of regulating valve itself is also different, this is determined by the structural behaviour of equipment itself and the characteristic of distinguished and admirable body
Fixed.
Volume damper piece has different degree of regulation in different open ranges, and entire air quantity degree of regulation is exactly wind
Precision of the adjustable valve in entire adjustable range, this just determines that air quantity is adjusted and cannot carry out surely in its adjustable range to air quantity
Fixed precision is adjusted.
The degree of regulation of volume damper is widely different with the difference of aperture, as volume damper control position 0~
When 20% region, the degree of regulation of volume damper is about 30% or so.The control position of volume damper 20%~
When 40% region, the degree of regulation of volume damper is about 20% or so.The control position of volume damper 40%~
When 45% region, the degree of regulation of volume damper is about 10% or so.The control position of volume damper 45%~
When 55% region, the degree of regulation of volume damper is about 5% or so.The control position of volume damper is 55%~60%
Region when, the degree of regulation of volume damper is about 10% or so.The control position of volume damper is 60%~80%
When region, the degree of regulation of volume damper is about 20% or so.Area of the control position of volume damper 80%~100%
When domain, the degree of regulation of volume damper is about 30% or so.(precision has its optimum precision for describing each control equipment
The precision of working region, different zones has larger difference)
Current air quantity regulation technology can not realize that the high-precision under different air quantity requirements is adjusted, when air quantity is biggish
It waits, adjusts the aperture of valve block working region with regard to big, when equipment air quantity is small, the aperture of regulating valve working region is just small, adjusts
The working region of valve block can change because of the requirement of different air quantity, and entire air quantity adjusting can not also save stable precision.Wind
The degree of regulation of adjustable valve is not linear characteristic, this is that volume damper and air-flow character are determined, can not be realized
High-precision of stablizing in gamut is adjusted, then good valve manufacture technique can not change this characteristic.
Therefore, the degree of regulation of any volume adjusting apparatus all has range in the prior art, and being unable to satisfy actually makes
Used time adjusts the high-precision that different air quantity require.
Summary of the invention
Aiming at the problems existing in the prior art, the utility model provides the adjusting air quantity under a kind of different air quantity requirement
The high-precision volume adjusting apparatus of precision.
The purpose of this utility model is achieved through the following technical solutions.
A kind of high-precision volume adjusting apparatus, including ventilation shaft are equipped with air quantity between the inner wall of the ventilation shaft
Accurate regulating valve and workspace status adjustment valve, the accurate regulating valve two sides of air quantity are equipped with pressure difference measuring mechanism, the pressure
Difference measurements mechanism is used to detect the pressure difference before and after the accurate regulating valve of air quantity.
Further, in the adjustment process for stablizing air quantity, the pressure difference before and after the accurate regulating valve of air quantity is with workspace
The aperture of status adjustment valve increases and reduces, reduces with the aperture of workspace status adjustment valve and increase.
Further, the accurate regulating valve of the air quantity is provided with air quantity precise regulation mechanism, the workspace status adjustment
Valve is provided with workspace status adjustment mechanism.
Further, the air quantity precise regulation mechanism is electric adjusting mechanism, and workspace status adjustment mechanism is
Electric adjusting mechanism or manual adjustment means.
Further, the accurate regulating valve of the air quantity includes that one group of air quantity accurately adjusts valve block, the work zone state tune
Saving valve includes one group of workspace status adjustment valve block.
Compared with the prior art, utility model has the advantages that the utility model is by coarse adjustment (workspace status adjustment
Valve) combine with thin tuning (the accurate regulating valve of air quantity) and is adjusted, it can effectively solve the problem that the entirety that existing ventilation industry air quantity is adjusted
Low precision, the bad adaptability that different air quantity ranges are adjusted, the problem that precision can not be stable in adjustable range.
Detailed description of the invention
Fig. 1 is the linear relationship schematic diagram of pressure difference before and after workspace status adjustment valve opening and the accurate regulating valve of air quantity.
Fig. 2 is the structural schematic diagram of the utility model embodiment 1.
Fig. 3 is the structural schematic diagram of the utility model embodiment 2.
In figure: 1, ventilation shaft 2, pressure difference measuring mechanism 3, air quantity precise regulation mechanism 4, workspace status adjustment machine
Structure 5, air quantity accurately adjust valve block 6, workspace status adjustment valve block.
Specific embodiment
With reference to the accompanying drawings of the specification and specific embodiment, the utility model is described in detail.
Embodiment 1
As shown in Fig. 2, a kind of high-precision volume adjusting apparatus, including ventilation shaft 1, the inner wall of the ventilation shaft 1 it
Between the accurate regulating valve of air quantity and workspace status adjustment valve are installed, realize stablize air quantity adjustment process in, the air quantity
Accurate regulating valve two sides are equipped with pressure difference measuring mechanism 2, and the pressure difference measuring mechanism 2 is for detecting the accurate regulating valve front and back of air quantity
Pressure difference.As shown in Figure 1, the pressure difference before and after the accurate regulating valve of air quantity increases with the aperture of workspace status adjustment valve and is subtracted
It is small, with workspace status adjustment valve aperture reduce and increase.The accurate regulating valve of air quantity is provided with air quantity and accurately adjusts machine
Structure 3, the workspace status adjustment valve are provided with workspace status adjustment mechanism 4.The air quantity precise regulation mechanism 3 is electronic
Regulating mechanism, workspace status adjustment mechanism 4 are electric adjusting mechanism.The accurate regulating valve of air quantity includes one group of air quantity
Accurate to adjust valve block 5, the workspace status adjustment valve includes one group of workspace status adjustment valve block 6.
Embodiment 2
As shown in figure 3, a kind of high-precision volume adjusting apparatus, including ventilation shaft 1, the inner wall of the ventilation shaft 1 it
Between the accurate regulating valve of air quantity and workspace status adjustment valve are installed, realize stablize air quantity adjustment process in, the air quantity
Accurate regulating valve two sides are equipped with pressure difference measuring mechanism 2, and the pressure difference measuring mechanism 2 is for detecting the accurate regulating valve front and back of air quantity
Pressure difference.As shown in Figure 1, the pressure difference before and after the accurate regulating valve of air quantity increases with the aperture of workspace status adjustment valve and is subtracted
It is small, with workspace status adjustment valve aperture reduce and increase.The accurate regulating valve of air quantity is provided with air quantity and accurately adjusts machine
Structure 3, the workspace status adjustment valve are provided with workspace status adjustment mechanism 4.The air quantity precise regulation mechanism 3 is electronic
Regulating mechanism, workspace status adjustment mechanism 4 are manual adjustment means.The accurate regulating valve of air quantity includes one group of air quantity
Accurate to adjust valve block 5, the workspace status adjustment valve includes one group of workspace status adjustment valve block 6.
Mode of operation:
In realizing the adjustment process for stablizing air quantity, the flow-differential zone of the working condition of the accurate regulating valve of air quantity is preset
Domain controls the front and back pressure difference of the accurate regulating valve of air quantity by the electric or hand aperture for adjusting workspace status adjustment valve, practical
Numerical value is read by pressure difference measuring mechanism 2, is preset air quantity when the actual pressure differential of the accurate regulating valve of air quantity is less than and is accurately adjusted
The pressure difference region of the working condition of valve then controls workspace status adjustment valve and turns aperture down, when the reality of the accurate regulating valve of air quantity
Pressure difference is greater than the pressure difference region for presetting the working condition of the accurate regulating valve of air quantity, then controls workspace status adjustment valve and tune up
Aperture, it is ensured that the accurate regulating valve of air quantity always works in preset region.The work of workspace status adjustment mechanism 4 is kept at this time
It is constant to make position.The thin tuning function of opening the accurate regulating valve of air quantity realizes that air quantity is smart again using air quantity precise regulation mechanism 3
Degree is adjusted, and the artificial practical adjustments regional location for acquiring air quantity precise regulation mechanism 3 controls remaining air quantity tune as control signal
The regulatory function for saving valve is adjusted using the linkage that workspace status adjustment valve block 6 and air quantity accurately adjust valve block 5, by workspace
Status adjustment valve and the accurate regulating valve of air quantity are combined as a whole to adjust air quantity, and it is complete to air quantity to realize the present apparatus
The high-precision of range ability is adjusted.
Claims (5)
1. a kind of high-precision volume adjusting apparatus, including ventilation shaft, it is characterised in that pacify between the inner wall of the ventilation shaft
Equipped with the accurate regulating valve of air quantity and workspace status adjustment valve, the accurate regulating valve two sides of air quantity are equipped with pressure difference measuring machine
Structure, in the adjustment process for stablizing air quantity, the pressure difference measuring mechanism is used to detect the pressure difference before and after the accurate regulating valve of air quantity.
2. a kind of high-precision volume adjusting apparatus according to claim 1, it is characterised in that in the adjusting for stablizing air quantity
Cheng Zhong, the pressure difference before and after the accurate regulating valve of air quantity increase with the aperture of workspace status adjustment valve and reduce, with workspace
The aperture of status adjustment valve reduces and increases.
3. a kind of high-precision volume adjusting apparatus according to claim 1, it is characterised in that the accurate regulating valve of air quantity
It is provided with air quantity precise regulation mechanism, the workspace status adjustment valve is provided with workspace status adjustment mechanism.
4. a kind of high-precision volume adjusting apparatus according to claim 3, it is characterised in that the air quantity accurately adjusts machine
Structure is electric adjusting mechanism, and workspace status adjustment mechanism is electric adjusting mechanism or manual adjustment means.
5. a kind of high-precision volume adjusting apparatus according to any one of claims 1-4, it is characterised in that the air quantity
Accurate regulating valve includes that one group of air quantity accurately adjusts valve block, and the workspace status adjustment valve includes one group of workspace status adjustment
Valve block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821152500.7U CN208750947U (en) | 2018-07-19 | 2018-07-19 | A kind of high-precision volume adjusting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821152500.7U CN208750947U (en) | 2018-07-19 | 2018-07-19 | A kind of high-precision volume adjusting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208750947U true CN208750947U (en) | 2019-04-16 |
Family
ID=66056118
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821152500.7U Active CN208750947U (en) | 2018-07-19 | 2018-07-19 | A kind of high-precision volume adjusting apparatus |
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| CN (1) | CN208750947U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113757971A (en) * | 2021-08-28 | 2021-12-07 | 浙江美阳国际工程设计有限公司 | Dual-control combined clean room pressure control system and application thereof |
| CN115095963A (en) * | 2022-08-26 | 2022-09-23 | 北京环都拓普空调有限公司 | Self-adaptive fresh air system adjusting method and corresponding fresh air system |
| CN116045009A (en) * | 2023-02-07 | 2023-05-02 | 广州驰拓智能科技有限公司 | Variable air volume valve with accurate air volume adjustment function |
| WO2023185738A1 (en) * | 2022-03-31 | 2023-10-05 | 同舟蓝海(北京)控股有限公司 | Air volume control damper capable of accurately measuring air volume |
-
2018
- 2018-07-19 CN CN201821152500.7U patent/CN208750947U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113757971A (en) * | 2021-08-28 | 2021-12-07 | 浙江美阳国际工程设计有限公司 | Dual-control combined clean room pressure control system and application thereof |
| WO2023185738A1 (en) * | 2022-03-31 | 2023-10-05 | 同舟蓝海(北京)控股有限公司 | Air volume control damper capable of accurately measuring air volume |
| CN115095963A (en) * | 2022-08-26 | 2022-09-23 | 北京环都拓普空调有限公司 | Self-adaptive fresh air system adjusting method and corresponding fresh air system |
| CN115095963B (en) * | 2022-08-26 | 2022-11-29 | 北京环都拓普空调有限公司 | Self-adaptive fresh air system adjusting method and corresponding fresh air system |
| CN116045009A (en) * | 2023-02-07 | 2023-05-02 | 广州驰拓智能科技有限公司 | Variable air volume valve with accurate air volume adjustment function |
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