CN2804698Y - Air volume control valve with front mounted flow equalization lattice - Google Patents
Air volume control valve with front mounted flow equalization lattice Download PDFInfo
- Publication number
- CN2804698Y CN2804698Y CN 200520043240 CN200520043240U CN2804698Y CN 2804698 Y CN2804698 Y CN 2804698Y CN 200520043240 CN200520043240 CN 200520043240 CN 200520043240 U CN200520043240 U CN 200520043240U CN 2804698 Y CN2804698 Y CN 2804698Y
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- CN
- China
- Prior art keywords
- valve body
- air
- utility
- model
- volume control
- 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
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Abstract
The utility model discloses an air quantity control valve with prepositive flow equalization grids, which comprises a valve body, wherein a control element is arranged in the valve body. The utility model is characterized in that the front end of the valve body along a wind direction inlet is fixed with a layer of flow equalization grids. The ventilation rate of the grids is from 70% to 80%. Compared with general air quantity control valves, air flow becomes even and consistent under the action of the flow equalization grids which are evenly distributed and are arranged on the front end of the valve body when the air flow flows through the front end of the valve body under the same condition, the air flow distribution of air tissue is improved, and the accuracy of air quantity measure is improved. Thus, the utility model has high measuring accuracy and small errors. The utility model has the advantages of simple structure, low cost, etc.
Description
Technical field
The utility model relates to a kind of air conditioner end equipment, specifically a kind of volume control damper.
Background technology
Volume control damper is mounted in a kind of device of control air quantity on the airduct in central air conditioner system, calculate corresponding air quantity thereby existing volume control damper all adopts the mode of pressure difference sensing to measure mean wind speed.For the precision that guarantees to measure, requiring air-flow is uniformity at the air-valve place that flows through, and exists many turning round and the place of bifurcated in the air-line system, air-flow tends to produce vortex flow in the local time flowing through these, thereby influence the precision of air measuring, make certainty of measurement low, error is big; For a change this situation, just require air-valve will avoid the place of these air turbulence when mounted as far as possible, for square air-valve, more common measure is will guarantee that in the front of valve the straight length of 2.5 times of length of sides guarantees certain certainty of measurement, not only design for HVAC and construction has brought inconvenience, the respective straight pipeline section has also increased mounting cost and cost.
Summary of the invention
Technical problem to be solved in the utility model provides the volume control damper that a kind of simple in structure, air inlet place air quantity is stable and help reducing cost, to overcome the above-mentioned defective that prior art exists.
The technical scheme of the utility model technical solution problem is as follows:
A kind of volume control damper of preposition equal stream trellis comprises valve body, and control element is set in the valve body, it is characterized in that, fixedly installs the equal stream trellis of one deck along the valve body front end of wind direction porch.
The through-hole rate of described grid is 70%～80%.
The pressure copper pipe that also comprises one-tenth " cross " the type layout that is fixedly installed in the valve body.
The utility model beneficial effect compared with prior art is as follows:
1. under equal conditions common relatively air quantity valve, the utility model is by being provided with the equal stream trellis of one deck at the valve body front end, airflow passes herein the time under the effect of the grid that is evenly distributed, the air-flow uniformity more that becomes, the air-flow that has improved air current composition distributes, thereby improved the precision of air measuring, made certainty of measurement higher, error is littler.
2. the length of straight length before can suitably shortening air-valve under equal certainty of measurement designs for HVAC like this and construction has brought facility, has also saved the expense of respective straight pipeline section, has reduced cost.
3. protect the differential pressure measurement device; If any foreign matter, preposition grid is equivalent to a filter can prevent that foreign matter from directly blocking or influencing the pressure in pressure detecting hole, thereby influences certainty of measurement in airduct.
Description of drawings
Fig. 1 is that the utility model volume control damper is faced structural representation;
Fig. 2 is the utility model volume control damper side-looking structural representation.
The specific embodiment
Further specify the utility model below in conjunction with accompanying drawing
Referring to Fig. 1, Fig. 2, the volume control damper of the preposition equal stream trellis of the utility model comprises valve body 1, and control element 5 is set in the valve body, fixedly installs the equal stream trellis 2 of one deck along valve body 1 front end of wind direction porch.The through-hole rate of grid is 70%～80%, also comprises the pressure copper pipe 3 of one-tenth " cross " the type layout that is fixedly installed in the valve body 1.The installation base plate 6 of sidewall is provided with controller 4.Direction shown in the arrow is a wind direction among Fig. 2.
Claims (3)
1. the volume control damper of a preposition equal stream trellis comprises valve body, and control element is set in the valve body, it is characterized in that, fixedly installs the equal stream trellis of one deck along the valve body front end of wind direction porch.
2. volume control damper according to claim 1 is characterized in that, the through-hole rate of described grid is 70%～80%.
3. volume control damper according to claim 1 and 2 is characterized in that, also comprises the pressure copper pipe of one-tenth " cross " the type layout that is fixedly installed in the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520043240 CN2804698Y (en) | 2005-07-07 | 2005-07-07 | Air volume control valve with front mounted flow equalization lattice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520043240 CN2804698Y (en) | 2005-07-07 | 2005-07-07 | Air volume control valve with front mounted flow equalization lattice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2804698Y true CN2804698Y (en) | 2006-08-09 |
Family
ID=36909987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520043240 Expired - Fee Related CN2804698Y (en) | 2005-07-07 | 2005-07-07 | Air volume control valve with front mounted flow equalization lattice |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2804698Y (en) |
-
2005
- 2005-07-07 CN CN 200520043240 patent/CN2804698Y/en not_active Expired - Fee Related
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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 |