CN203011939U - Wind speed monitoring device of gas water heater fan - Google Patents
Wind speed monitoring device of gas water heater fan Download PDFInfo
- Publication number
- CN203011939U CN203011939U CN 201220651514 CN201220651514U CN203011939U CN 203011939 U CN203011939 U CN 203011939U CN 201220651514 CN201220651514 CN 201220651514 CN 201220651514 U CN201220651514 U CN 201220651514U CN 203011939 U CN203011939 U CN 203011939U
- Authority
- CN
- China
- Prior art keywords
- pressure
- fan
- venturi
- monitoring device
- water heater
- 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 - Lifetime
Links
- 238000012806 monitoring device Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 15
- 238000010079 rubber tapping Methods 0.000 claims description 20
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000005070 sampling Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 11
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003556 assay Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Regulation And Control Of Combustion (AREA)
Abstract
The utility model discloses a wind speed monitoring device of gas heater fan, its characterized in that includes the venturi that is connected with the fan air outlet and tests the speed the pipe, the maximum flow department that the venturi tested the speed the pipe be equipped with the first pressure mouth of getting, the first pressure mouth of getting is equipped with first pressure sensor, the venturi test the speed minimum flow department of pipe be provided with the second and get the pressure mouth, the second is got the pressure mouth and is equipped with second pressure sensor. The utility model discloses the maximum flow department that tests the speed at the venturi pipe is equipped with first pressure port of getting, is equipped with the second in the minimum flow department that tests the speed at the venturi pipe and gets the pressure port, just can calculate the wind speed V1 of sampling point according to the formula to for the amount of wind that accurately acquires the fan provides the reliability foundation, can accurate monitoring fan wind speed, simple structure, simple to operate.
Description
[technical field]
The utility model relates to a kind of air monitoring device of fan of gas water heater.
[background technology]
The burning of combustion gas be unable to do without combustion air, and suitable air and gas proportion will make combustion efficiency reach best.Mainly obtain air and adjusting by adjusting rotation speed of fan at present, traditional technology is by installing magnetic pole additional in the rotating shaft of blower fan, then detect the rotating speed of rotating shaft with Hall element on the shell of blower fan, thus the operating condition of indirect monitoring blower fan.But because blower fan is more complicated in the relation between wind speed and rotating speed under the different operating situation, it is not very reliable therefore replacing air monitoring with rotating speed.
[utility model content]
The purpose of this utility model is to overcome the deficiencies in the prior art part, provides a kind of and can accurately monitor the blower fan wind speed, and is simple in structure, the air monitoring device of fan of gas water heater easy for installation.
The purpose of this utility model is achieved in that
A kind of air monitoring device of fan of gas water heater, it is characterized in that it comprises the venturi pitot tube that is connected with fan outlet, the maximum flow place of described venturi pitot tube is provided with the first pressure tappings, the first pressure tappings is provided with the first pressure transducer, the minimum flow place of described venturi pitot tube is provided with the second pressure tappings, and the second pressure tappings is provided with the second pressure transducer.
The air monitoring device of a kind of fan of gas water heater as above, the two ends that it is characterized in that described venturi pitot tube are two sections side pipes, the centre of two sections side pipes is connected with intervalve, the side pipe is tapered tube, intervalve is respectively pipe, a small-bore side of two sections side pipes is connected with intervalve respectively, and the first pressure tappings is arranged on the heavy caliber position of side pipe, and the second pressure tappings is located on intervalve.
The air monitoring device of a kind of fan of gas water heater as above, the cross sectional shape that it is characterized in that described intervalve can also be oval or square or rectangle.
The air monitoring device of a kind of fan of gas water heater as above is characterized in that described the first pressure transducer and the second pressure transducer are piezoresistive pressure sensor.
The utility model is provided with the first pressure tappings at the maximum flow place of venturi pitot tube, be provided with the second pressure tappings at the minimum flow place at the venturi pitot tube, just can calculate the wind speed V1 of sampling spot according to formula, thereby for the air quantity of Obtaining Accurate blower fan provides the reliability foundation, can accurately monitor the blower fan wind speed, simple in structure, easy for installation.
[description of drawings]
Figure l is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model when being arranged on fan of gas water heater.
[embodiment]
A kind of air monitoring device of fan of gas water heater, it comprises the venturi pitot tube 1 that is connected with fan outlet, the maximum flow place of described venturi pitot tube 1 is provided with the first pressure tappings 2, the first pressure tappings 2 is provided with the first pressure transducer 3, the minimum flow place of described venturi pitot tube 1 is provided with the second pressure tappings 4, the second pressure tappings 4 and is provided with the second pressure transducer 5.
The two ends of venturi pitot tube 1 are two sections side pipes 11, the centre of two sections side pipes 11 is connected with intervalve 12, side pipe 11 is tapered tube, intervalve 12 is respectively pipe, a side of small-bore 110 of two sections side pipes 11 is connected with intervalve 12 respectively, the first pressure tappings 2 is arranged on heavy caliber 111 positions of side pipe 11, and the second pressure tappings 4 is located on intervalve 12.
The cross sectional shape of intervalve 12 can also be oval or square or rectangle.
The first pressure transducer and the second pressure transducer are piezoresistive pressure sensor.
The first pressure transducer 3 and the second pressure transducer 5 are by the pressure detection circuit of pipeline connecting fan outside, and the interlock circuit that its signal is carried out transformation assay.Detect the pressure differential of large footpath and path, just can calculate the wind speed V1 of sampling spot according to formula, thereby provide the reliability foundation for the air quantity of Obtaining Accurate blower fan.
Described venturi pitot tube can be individual independently pipe, also the discharge pipe of blower fan directly can be designed to the venturi pitot tube.
As shown in Figure 2, venturi pitot tube 1 is arranged in the air-out passage 101 of fan of gas water heater 100.The first pressure transducer of venturi pitot tube be connected pressure transducer and be connected with pressure detection circuit 102 respectively.
Claims (4)
1. the air monitoring device of a fan of gas water heater, it is characterized in that it comprises the venturi pitot tube (1) that is connected with fan outlet, the maximum flow place of described venturi pitot tube (1) is provided with the first pressure tappings (2), the first pressure tappings (2) is provided with the first pressure transducer (3), the minimum flow place of described venturi pitot tube (1) is provided with the second pressure tappings (4), and the second pressure tappings (4) is provided with the second pressure transducer (5).
2. the air monitoring device of a kind of fan of gas water heater according to claim 1, the two ends that it is characterized in that described venturi pitot tube (1) are two sections side pipes (11), the centre of two sections side pipes (11) is connected with intervalve (12), side pipe (11) is tapered tube, intervalve (12) is respectively pipe, a small-bore side of two sections side pipes (11) is connected with intervalve (12) respectively, the first pressure tappings (2) is arranged on the heavy caliber position of side pipe (11), and the second pressure tappings (4) is located on intervalve (12).
3. the air monitoring device of a kind of fan of gas water heater according to claim 2, the cross sectional shape that it is characterized in that described intervalve (12) can also be oval or square or rectangle.
4. the air monitoring device of a kind of fan of gas water heater according to claim 1, is characterized in that described the first pressure transducer and the second pressure transducer are piezoresistive pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220651514 CN203011939U (en) | 2012-11-30 | 2012-11-30 | Wind speed monitoring device of gas water heater fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220651514 CN203011939U (en) | 2012-11-30 | 2012-11-30 | Wind speed monitoring device of gas water heater fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203011939U true CN203011939U (en) | 2013-06-19 |
Family
ID=48603521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220651514 Expired - Lifetime CN203011939U (en) | 2012-11-30 | 2012-11-30 | Wind speed monitoring device of gas water heater fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203011939U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018479A (en) * | 2012-11-30 | 2013-04-03 | 中山市樱雪集团有限公司 | Wind speed monitoring device of gas water heater fan |
| CN109709351A (en) * | 2019-02-01 | 2019-05-03 | 中国科学院电子学研究所 | Near space real-time in-situ wind speed wind direction sensor based on wind pressure prediction |
-
2012
- 2012-11-30 CN CN 201220651514 patent/CN203011939U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018479A (en) * | 2012-11-30 | 2013-04-03 | 中山市樱雪集团有限公司 | Wind speed monitoring device of gas water heater fan |
| CN109709351A (en) * | 2019-02-01 | 2019-05-03 | 中国科学院电子学研究所 | Near space real-time in-situ wind speed wind direction sensor based on wind pressure prediction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |
|
| CX01 | Expiry of patent term |