CN101614564A - A kind of indoor large space testing natural ventilation rate is put and method - Google Patents
A kind of indoor large space testing natural ventilation rate is put and method Download PDFInfo
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- CN101614564A CN101614564A CN200910055504A CN200910055504A CN101614564A CN 101614564 A CN101614564 A CN 101614564A CN 200910055504 A CN200910055504 A CN 200910055504A CN 200910055504 A CN200910055504 A CN 200910055504A CN 101614564 A CN101614564 A CN 101614564A
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- flowmeter
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Abstract
The purpose of this invention is to provide a kind of indoor large space testing natural ventilation rate puts, comprise gas-holder, flow control valve, flowmeter, concentration measuring apparatus and automaton, it is characterized in that, flow control valve connects gas-holder and flowmeter one end, and be controlled by automaton, the described flowmeter other end is connected with vent hole by tracheae, and described gas-holder, flow control valve, flowmeter and automaton are integrated.The present invention is constant at natural ventilation rate, air flow direction is clear and definite and be under the precondition of single import, single outlet, can be simple and convenient large space natural ventilation rate size in the measuring chamber fast and effeciently again, thereby natural ventilation is carried out the evaluation of effective science.
Description
Technical field
The invention belongs to the indoor environment technical field of measurement and test, relate in particular to a kind of indoor large space testing natural ventilation rate and put and method.
Background technology
During the natural ventilation rate on-the-spot test, utilize universal anemoscope or tracer gas technique usually, utilize the method for average or the Return Law to try to achieve the size of ventilation of room amount by recording a plurality of measuring point datas.Yet for the test of large space class building natural ventilation rate, because the interior space is big, measuring point complicated layout and difficulty, and also the circuit that needs is more, and these two kinds of methods all are difficult to realize in actual applications.
Summary of the invention
The purpose of this invention is to provide a kind of indoor large space testing natural ventilation rate and put, thereby natural ventilation is carried out the evaluation of effective science.
Technical scheme of the present invention is such, be that a kind of indoor large space testing natural ventilation rate is put, comprise gas-holder, flow control valve, flowmeter, concentration measuring apparatus and automaton, it is characterized in that, flow control valve connects gas-holder and flowmeter one end, and be controlled by automaton, and the described flowmeter other end is connected with vent hole by tracheae, and described gas-holder, flow control valve, flowmeter and automaton are integrated.
A kind of method that adopts large space natural ventilation rate in the test cabinet may further comprise the steps:
, air flow direction constant at the large space natural ventilation rate is clear and definite and be under the precondition of single import, single outlet, described large space testing natural ventilation rate is placed the air flow inlet place, guarantee that simultaneously the tracer gas type is that concentration is zero gas in the outside atmosphere in the gas-holder;
Described gas-holder is by the effect of tracheae and vent hole, to the indoor release test of large space desired gas;
Utilize described automaton monitoring meter readings, by controlling the aperture size of described flow control valve, the gas flow that guarantees to be discharged into the interior space is constant;
Be discharged into interior space flow size in large space air stream outlet position by described flowmeter metering, utilize the effect of described concentration measuring apparatus and measurement of concetration probe, measure outlet position concentration;
Utilize the air flow rate size of described flowmeter metering and the value that place, exit position concentration calculates natural ventilation rate.
The present invention is constant at natural ventilation rate, air flow direction is clear and definite and be under the precondition of single import, single outlet, can be simple and convenient large space natural ventilation rate size in the measuring chamber fast and effeciently again.
Description of drawings
Indoor large space testing natural ventilation rate is put synoptic diagram in Fig. 1 one embodiment of the invention
Wherein, 1-gas-holder, 2-flow control valve, 3-tracheae, 4-vent hole, 5-flowmeter, 6-lead, 7-automaton, 8-concentration measuring apparatus, 9-measurement of concetration probe
Embodiment
The present invention is further described below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of large space testing natural ventilation rate is put, its structure comprises: gas-holder 1, flow control valve 2, flowmeter 5, automaton 7 and concentration measuring apparatus 8, and gas-holder, flow control valve, flowmeter and automaton are integrated;
Gas-holder 1 lower end is connected with flow control valve 2, and flow control valve 2 is connected with automaton 7 by lead 6, and flowmeter 5 is installed on the tracheae 3, and flowmeter 5 lower ends are connected with vent hole 4, and flowmeter 5 is connected with automaton 7 by lead 6.
, air flow direction constant at the large space natural ventilation rate is clear and definite and be under the precondition of single import, single outlet, the large space testing natural ventilation rate is placed the air flow inlet place, guarantee that simultaneously the tracer gas type is that concentration is zero gas in the outside atmosphere in the gas-holder.Gas-holder 1 is by the effect of tracheae 3 and vent hole 4, to the indoor release test of large space desired gas; Utilize automaton 7, based on the effect of circuit 6, monitoring flowmeter 5 readings, by the aperture size of Control Flow variable valve 2, the gas flow that guarantees to be discharged into the interior space is constant; Be discharged into interior space flow size by flowmeter 5 meterings.In large space air stream outlet position, utilize the effect of concentration measuring apparatus 8 and measurement of concetration probe 9, measure outlet position concentration.Utilize the air flow rate size and place, the exit position concentration of flowmeter 5 meterings, just can calculate the value of natural ventilation rate easily.
Therefore, this large space testing natural ventilation rate is put, and can use the test at the large space natural ventilation rate, avoid measuring layout numerous and diverse, circuit too many and bring expend the problem that a large amount of man power and materials and ventilation can't be measured; This apparatus structure is simple and convenient, the testing efficiency height.
Claims (2)
1, a kind of indoor large space testing natural ventilation rate is put, comprise gas-holder, flow control valve, flowmeter, concentration measuring apparatus and automaton, it is characterized in that, flow control valve connects gas-holder and flowmeter one end, and be controlled by automaton, the described flowmeter other end is connected with vent hole by tracheae, and described gas-holder, flow control valve, flowmeter and automaton are integrated.
2, the indoor according to claim 1 large space testing natural ventilation rate of a kind of employing is put the method for large space natural ventilation rate in the test cabinet, it is characterized in that, may further comprise the steps:
, air flow direction constant at the large space natural ventilation rate is clear and definite and be under the precondition of single import, single outlet, described large space testing natural ventilation rate is placed the air flow inlet place, guarantee that simultaneously the tracer gas type is that concentration is zero gas in the outside atmosphere in the gas-holder;
Described gas-holder is by the effect of tracheae and vent hole, to the indoor release test of large space desired gas;
Utilize described automaton monitoring meter readings, by controlling the aperture size of described flow control valve, the gas flow that guarantees to be discharged into the interior space is constant;
Be discharged into interior space flow size in large space air stream outlet position by described flowmeter metering, utilize the effect of described concentration measuring apparatus and measurement of concetration probe, measure outlet position concentration;
Utilize the air flow rate size of described flowmeter metering and the value that place, exit position concentration calculates natural ventilation rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910055504 CN101614564B (en) | 2009-07-28 | 2009-07-28 | Device and method for testing natural ventilation rate in indoor high and large space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910055504 CN101614564B (en) | 2009-07-28 | 2009-07-28 | Device and method for testing natural ventilation rate in indoor high and large space |
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| Publication Number | Publication Date |
|---|---|
| CN101614564A true CN101614564A (en) | 2009-12-30 |
| CN101614564B CN101614564B (en) | 2011-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910055504 Expired - Fee Related CN101614564B (en) | 2009-07-28 | 2009-07-28 | Device and method for testing natural ventilation rate in indoor high and large space |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928033A (en) * | 2012-10-30 | 2013-02-13 | 清华大学 | Ventilation testing method combining standard distributed samples and passive samplers |
| CN108593247A (en) * | 2018-04-08 | 2018-09-28 | 上海理工大学 | The method of available ventilation amount between four series connection rooms of measurement |
| WO2020192061A1 (en) * | 2019-03-28 | 2020-10-01 | 中国辐射防护研究院 | Method and system for measuring air exchange amount |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0067314A3 (en) * | 1981-06-15 | 1985-10-30 | Cerberus Ag | Method and apparatus to determine the renewal rate of air |
| GB2190184A (en) * | 1986-05-07 | 1987-11-11 | British Gas Plc | Measuring air change rate in a room |
| EP1631807B1 (en) * | 2003-06-11 | 2007-11-21 | Varian, Inc. | Method and apparatus for large leak testing |
-
2009
- 2009-07-28 CN CN 200910055504 patent/CN101614564B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928033A (en) * | 2012-10-30 | 2013-02-13 | 清华大学 | Ventilation testing method combining standard distributed samples and passive samplers |
| CN102928033B (en) * | 2012-10-30 | 2014-08-20 | 清华大学 | Ventilation testing method combining standard distributed samples and passive samplers |
| CN108593247A (en) * | 2018-04-08 | 2018-09-28 | 上海理工大学 | The method of available ventilation amount between four series connection rooms of measurement |
| WO2020192061A1 (en) * | 2019-03-28 | 2020-10-01 | 中国辐射防护研究院 | Method and system for measuring air exchange amount |
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| CN101614564B (en) | 2011-02-09 |
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Owner name: SHANGHAI JIANKE BUILDING ENERGY TECHNOLOGY CO., LT Free format text: FORMER OWNER: SHANGHAI BUILDING SCIENCE RESEARCH INSTITUTE CO., LTD. Effective date: 20140414 |
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Effective date of registration: 20140414 Address after: 200032 Shanghai city Xuhui District Wanping Road No. 75 Room 401 Patentee after: SHANGHAI JIANKE BUILDING ENERGY SERVICE CO.,LTD. Address before: 200032 Shanghai city Xuhui District Wanping Road No. 75 Patentee before: SHANGHAI RESEARCH INSTITUTE OF BUILDING SCIENCES (Group) Co.,Ltd. |
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