CN202216724U - Multipurpose device for measuring small air volume - Google Patents
Multipurpose device for measuring small air volume Download PDFInfo
- Publication number
- CN202216724U CN202216724U CN201120361740XU CN201120361740U CN202216724U CN 202216724 U CN202216724 U CN 202216724U CN 201120361740X U CN201120361740X U CN 201120361740XU CN 201120361740 U CN201120361740 U CN 201120361740U CN 202216724 U CN202216724 U CN 202216724U
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Abstract
The utility model discloses a multipurpose device for measuring the small air volume, comprising a movable static pressure chamber, a measuring chamber and an adjustable fan; one side of the measuring chamber is connected with the movable static pressure chamber, the other side of the measuring chamber is connected with the adjusting fan, and the adjusting fan and the measuring chamber are connected with a controller; when an air inlet of the movable static pressure chamber is connected with an air outlet of a test piece, an air inlet of the measuring chamber is connected with an air outlet of the movable static pressure chamber, and an air outlet of the measuring chamber is connected with an air inlet of the adjusting fan; and when the air outlet of the movable static pressure chamber is connected with an air inlet of the test piece, the air inlet of the measuring chamber is connected with an air outlet of the adjusting fan, and the air outlet of the measuring chamber is connected with the air inlet of the movable static pressure chamber. The multipurpose device for measuring the small air volume can be used for not only measuring the air volume of each air outlet of the test piece, but also measuring the air leakage volume of the test piece; the two measuring aims can be realized by only changing the connection of parts and the set value of the movable static pressure chamber; and the multipurpose device for measuring the small air volume is simple in structure, convenient to use and low in cost.
Description
Technical field
The utility model relates to a kind of measurement mechanism, specifically belongs to the little apparatus for measuring air quantity of a kind of compact high precision multi-usage.
Background technology
In family expenses air-conditioning, air conditioning for automobiles manufacturing and detection industry, in order accurately to detect the air quantity of each air outlet, confirm that air quantity divides the timing needs little apparatus for measuring air quantity, need little apparatus for measuring air quantity simultaneously for the inleakage of check test part is same.In commonly used at present the measurement, a plurality of measurement mechanisms are set usually.Detect for ease, need a kind of apparatus for measuring air quantity to satisfy two kinds easily according to actual needs and detect requirement.
The utility model content
The technical matters that the utility model will solve provides the little apparatus for measuring air quantity of a kind of multi-usage, can conveniently switch, and satisfies the detection of windy mouthful of air-out air quantity and inleakage.
For solving the problems of the technologies described above, the little apparatus for measuring air quantity of the multi-usage of the utility model comprises mobile plenum chamber, measuring chamber and adjustable fan; Said measuring chamber one side links to each other with mobile plenum chamber, and opposite side links to each other with adjustable fan, and said adjustable fan links to each other with a controller with measuring chamber.
In said structure, when the air intake vent of said mobile plenum chamber connected the air outlet of testpieces, the air intake vent of measuring chamber linked to each other with the air outlet of mobile plenum chamber, and the air outlet of measuring chamber links to each other with the air intake vent of adjustable fan.When the air outlet of said mobile plenum chamber connected the air intake vent of testpieces, the air intake vent of measuring chamber linked to each other with the air outlet of adjustable fan, and the air outlet of measuring chamber links to each other with the air intake vent of mobile plenum chamber.
Wherein, comprise at least one static bole in the said mobile plenum chamber.
Further, said device also comprises differential static pressure pressure transmitter and atmospheric pressure transmitter, and an end of said differential static pressure pressure transmitter links to each other with static bole, and the other end and atmospheric pressure transmitter are communicated with, and are connected in the atmosphere.
Wherein, comprise in the said measuring chamber: the flow nozzle group comprises at least one nozzle; The nozzle entrance screens is located at before the flow nozzle group; The jet expansion screens is located at after the flow nozzle group; Static pressure measurement point before the nozzle is before the flow nozzle group; Static pressure measurement point behind the nozzle is after the flow nozzle group; The nozzle entrance temperature sensor is located at before the nozzle entrance screens; The nozzle entrance humidity sensor is located at before the nozzle entrance screens; Nozzle pressure difference transmitter, its two ends be static pressure measurement point behind static pressure measurement point and the nozzle before nozzle respectively.
But said adjustable fan comprises blower fan, motor, frequency converter and air register.
The utility model both can be measured each air outlet air output of testpieces; Also can measure the inleakage of testpieces; Only need the connection of transform component and the setting value of mobile plenum chamber can realize that two kinds are measured purpose, it is simple in structure, easy to use, cost reduces.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation:
Fig. 1 is the structural representation of the utility model experiment with measuring part air outlet air quantity;
Fig. 2 is the structural representation of the utility model experiment with measuring part inleakage.
Wherein description of reference numerals is following:
1 is that mobile plenum chamber 11 is the differential static pressure pressure transmitter
12 is that atmospheric pressure transmitter 2 is measuring chamber
21 is that flow nozzle group 22 is the nozzle entrance screens
23 is that jet expansion screens 24 is the nozzle entrance temperature sensor
25 is that nozzle entrance humidity sensor 26 is the nozzle differential pressure transmitter
3 is that adjustable fan 4 is testpieces
Embodiment
The little apparatus for measuring air quantity of the multi-usage of the utility model, as depicted in figs. 1 and 2, comprise and move plenum chamber 1, measuring chamber 2 and adjustable fan 3; Said measuring chamber 2 one sides link to each other with mobile plenum chamber 1, and opposite side links to each other with adjustable fan 3, and said adjustable fan 3 links to each other with a controller with measuring chamber 2.
Comprise at least one static bole (not shown) in the said mobile plenum chamber 1.Said device also comprises differential static pressure pressure transmitter 11 and atmospheric pressure transmitter 12, and an end of said differential static pressure pressure transmitter 11 links to each other with static bole, and the other end and atmospheric pressure transmitter 12 are communicated with, and are connected in the atmosphere.
In measuring chamber, comprise:
Static pressure measurement point (not shown) before the nozzle is before flow nozzle group 21;
Static pressure measurement point (not shown) behind the nozzle is after flow nozzle group 21;
Nozzle entrance temperature sensor 24 is located at before the nozzle entrance screens 22;
Nozzle entrance humidity sensor 25 is located at before the nozzle entrance screens 22;
Nozzle pressure difference transmitter 26, the two ends of nozzle pressure difference transmitter 26 (malleation end and negative pressure end) be static pressure measurement point behind static pressure measurement point and the nozzle before nozzle respectively.
But said adjustable fan 3 comprises blower fan, motor, frequency converter and air register.
The measuring principle of the utility model is to move the differential pressure of plenum chamber 1 through the controller adjusting adjustable fan 3 and the Combination Control of measuring chamber 2 interior flow nozzle groups 21; Differential pressure is reached and be stabilized in and measure required desired value, the measured value of differential pressure through flow nozzle group 21 front and back and nozzle entrance temperature sensor 24, nozzle entrance humidity sensor 25 is calculated the air-out air quantity or the inleakage of testpieces 4.
As shown in Figure 1, when the air intake vent that moves plenum chamber 1 connected the air outlet of testpieces 4, the air intake vent of measuring chamber 2 linked to each other with the air outlet of mobile plenum chamber 1, and the air outlet of measuring chamber 2 links to each other with the air intake vent of adjustable fan 3.This moment, the measurement mechanism of the utility model was used for the air-out air quantity of experiment with measuring part 4 air outlets, air flow through successively testpieces 4, move plenum chamber 1, measuring chamber 2 and adjustable fan 3.Differential static pressure pressure transmitter 11 is measured the static air pressure that moves in the plenum chamber 1, i.e. the outlet static pressure of testpieces 4.
As shown in Figure 2, when the air outlet that moves plenum chamber 1 connected the air intake vent of testpieces 4, the air intake vent of measuring chamber 2 linked to each other with the air outlet of adjustable fan 3, and the air outlet of measuring chamber 2 links to each other with the air intake vent of mobile plenum chamber 1.This moment, the measurement mechanism of the utility model was used for the inleakage of experiment with measuring part 4, air flow through successively adjustable fan 3, measuring chamber 2, move plenum chamber 1 and testpieces 4.Differential static pressure pressure transmitter 11 is measured the static air pressure that moves in the plenum chamber 1, i.e. the inlet static pressure of testpieces 4.
In above-mentioned two kinds of measurement patterns, air carries out rectification through nozzle entrance screens 22 earlier in measuring chamber 2, again through nozzle, at last through leaving measuring chamber 2 after the jet expansion screens 23.Nozzle differential pressure transmitter 26 is used to measure the differential static pressure of flow nozzle group 21 front and back, and then calculates the volume air quantity through flow nozzle group 21.The temperature and humidity of nozzle entrance temperature sensor 24 and nozzle entrance humidity sensor 25 gaging nozzle intake airs is used to calculate the atmospheric density of nozzle entrance.
Claims (7)
1. the little apparatus for measuring air quantity of multi-usage is characterized in that: comprise mobile plenum chamber, measuring chamber and adjustable fan; Said measuring chamber one side links to each other with mobile plenum chamber, and opposite side links to each other with adjustable fan, and said adjustable fan links to each other with a controller with measuring chamber.
2. the little apparatus for measuring air quantity of multi-usage according to claim 1; It is characterized in that: when the air intake vent of said mobile plenum chamber connects the air outlet of testpieces; The air intake vent of measuring chamber links to each other with the air outlet of mobile plenum chamber, and the air outlet of measuring chamber links to each other with the air intake vent of adjustable fan.
3. the little apparatus for measuring air quantity of multi-usage according to claim 1; It is characterized in that: when the air outlet of said mobile plenum chamber connects the air intake vent of testpieces; The air intake vent of measuring chamber links to each other with the air outlet of adjustable fan, and the air outlet of measuring chamber links to each other with the air intake vent of mobile plenum chamber.
4. the little apparatus for measuring air quantity of multi-usage according to claim 1 is characterized in that: comprise at least one static bole in the said mobile plenum chamber.
5. the little apparatus for measuring air quantity of multi-usage according to claim 4; It is characterized in that: said device also comprises differential static pressure pressure transmitter and atmospheric pressure transmitter; One end of said differential static pressure pressure transmitter links to each other with static bole; The other end and atmospheric pressure transmitter are communicated with, and are connected in the atmosphere.
6. the little apparatus for measuring air quantity of multi-usage according to claim 1 is characterized in that: comprise in the said measuring chamber:
The flow nozzle group comprises at least one nozzle;
The nozzle entrance screens is located at before the flow nozzle group;
The jet expansion screens is located at after the flow nozzle group;
Static pressure measurement point before the nozzle is before the flow nozzle group;
Static pressure measurement point behind the nozzle is after the flow nozzle group;
The nozzle entrance temperature sensor is located at before the nozzle entrance screens;
The nozzle entrance humidity sensor is located at before the nozzle entrance screens;
Nozzle pressure difference transmitter, its two ends be static pressure measurement point behind static pressure measurement point and the nozzle before nozzle respectively.
7. the little apparatus for measuring air quantity of multi-usage according to claim 1 is characterized in that: but said adjustable fan comprises blower fan, motor, frequency converter and air register.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120361740XU CN202216724U (en) | 2011-09-26 | 2011-09-26 | Multipurpose device for measuring small air volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120361740XU CN202216724U (en) | 2011-09-26 | 2011-09-26 | Multipurpose device for measuring small air volume |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202216724U true CN202216724U (en) | 2012-05-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120361740XU Expired - Lifetime CN202216724U (en) | 2011-09-26 | 2011-09-26 | Multipurpose device for measuring small air volume |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202216724U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501876A (en) * | 2015-01-09 | 2015-04-08 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for dynamically monitoring air leakage of titanium dioxide production clinker sensible heat recovery system |
| CN106706358A (en) * | 2017-03-13 | 2017-05-24 | 太原科技大学 | Measurement and control test stand for suction sweeping system of suction sweeping electric sweeper |
| CN106979802A (en) * | 2016-07-11 | 2017-07-25 | 深圳达实智能股份有限公司 | Metro platform shield door air leakage rate check system and method |
| CN109029869A (en) * | 2018-10-29 | 2018-12-18 | 北京长城华冠汽车技术开发有限公司 | A kind of air tightness test-bed flow calibrating device and scaling method |
| CN110044446A (en) * | 2019-04-04 | 2019-07-23 | 苏州市计量测试院 | A kind of air quantity calibration system |
| CN111693248A (en) * | 2020-04-22 | 2020-09-22 | 宁波锚点驱动技术有限公司 | Test method for small-air-volume fan |
-
2011
- 2011-09-26 CN CN201120361740XU patent/CN202216724U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501876A (en) * | 2015-01-09 | 2015-04-08 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for dynamically monitoring air leakage of titanium dioxide production clinker sensible heat recovery system |
| CN104501876B (en) * | 2015-01-09 | 2017-03-15 | 攀钢集团攀枝花钢铁研究院有限公司 | The method that dynamic monitoring Producing Titanium Dioxide grog cement sensible heat recovery system leaks out |
| CN106979802A (en) * | 2016-07-11 | 2017-07-25 | 深圳达实智能股份有限公司 | Metro platform shield door air leakage rate check system and method |
| CN106706358A (en) * | 2017-03-13 | 2017-05-24 | 太原科技大学 | Measurement and control test stand for suction sweeping system of suction sweeping electric sweeper |
| CN106706358B (en) * | 2017-03-13 | 2023-10-03 | 太原科技大学 | Suction-sweeping system measurement and control test bed of suction-sweeping type electric sweeper |
| CN109029869A (en) * | 2018-10-29 | 2018-12-18 | 北京长城华冠汽车技术开发有限公司 | A kind of air tightness test-bed flow calibrating device and scaling method |
| CN110044446A (en) * | 2019-04-04 | 2019-07-23 | 苏州市计量测试院 | A kind of air quantity calibration system |
| CN111693248A (en) * | 2020-04-22 | 2020-09-22 | 宁波锚点驱动技术有限公司 | Test method for small-air-volume fan |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120509 |