CN108709477A - The measuring and calculation method of window gap size - Google Patents
The measuring and calculation method of window gap size Download PDFInfo
- Publication number
- CN108709477A CN108709477A CN201810053072.0A CN201810053072A CN108709477A CN 108709477 A CN108709477 A CN 108709477A CN 201810053072 A CN201810053072 A CN 201810053072A CN 108709477 A CN108709477 A CN 108709477A
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- window
- gap
- window gap
- air quantity
- infiltration air
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B13/00—Measuring arrangements characterised by the use of fluids
- G01B13/02—Measuring arrangements characterised by the use of fluids for measuring length, width or thickness
- G01B13/06—Measuring arrangements characterised by the use of fluids for measuring length, width or thickness for measuring thickness
- G01B13/065—Height gauges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/18—Measuring arrangements characterised by the use of mechanical techniques for measuring depth
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Measuring Arrangements Characterized By The Use Of Fluids (AREA)
Abstract
The present invention relates to a kind of measuring and calculation methods of window gap size, according to window gap size and by the pressure difference of the infiltration air quantity in window gap and window both sides, there are certain relationships, abbreviation solves the relational expression for calculating gap height h and the infiltration air quantity Q and window both sides pressure differential deltap p by window gap, obtain the calculation expression relational expression about window gap height h, the infiltration air quantity Q in window gap will be passed through again, the pressure differential deltap p of window both sides, the length L in window gap, depth Z is measured respectively, substitute into the expression formula of window chinky altitude, find out the gap height h of window.
Description
Technical field
The present invention relates to a kind of architectural environment and energy-saving field, more particularly to a kind of measuring and calculation side of window gap size
Method.
Background technology
Today's society, architectural energy consumption is increasing, and saving energy test rises therewith, and it is exactly wherein one to measure window chinky altitude
Content, chinky altitude is difficult to be measured in practice, but according to the door and window gap in external reference books
Window chinky altitude is calculated in effective area coefficient Ce and related formula indirectly.But China is not about window gap height gauge
The reference books of very little calculating, window processing quality is also multifarious, using the data in external handbook, can bring prodigious mistake
Difference.
Invention content
It is difficult measured problem the present invention be directed to window gap size in Practical Project, it is proposed that a kind of window gap
The measuring and calculation method of size solves the problems, such as that window gap difficulty measures.
The technical scheme is that：A kind of measuring and calculation method of window gap size, specifically comprises the following steps：
If 1) be a steady-state value by the infiltration air quantity in window gap between institute's measuring room, decayed using trace gas concentration
Method measures the infiltration air quantity by window gap, opens search gas instrument, is connected on computer software, and then arrangement is surveyed
One end of leather hose is connected on search gas instrument by point, and the other end is arranged in the center in room, and then, release is certain
The search gas of amount opens fan and stirs evenly indoor gas, after a period of time, closes fan, seals and remove window to be measured in room
Gap is had the gap, and starts to test, and after the concentration of indoor search gas drops to prescribed concentration, stops experiment, processing
Data on computer software calculate the infiltration air quantity Q by window gap；
It is constant dense using search gas if 2) be a unstable state value by the infiltration air quantity in window gap between institute's measuring room
Degree method measures the infiltration air quantity Q by window gap, that is, seals and remove being had the gap for window gap to be measured in room, by tracer
Gas apparatus is opened, and is connected on computer software, and by one root skin pipe of the gas collecting mouth of search gas instrument and tracer is housed
The steel cylinder of gas is connected, and then arranges measuring point, opens the valve of steel cylinder, starts to test, and test a period of time, stops experiment, will
That measured each moment is tested in this period acquires weighted average by the infiltration air quantity in window gap, this weighting
Average value is exactly the average infiltration air quantity Q by window gap in this period；
3) barometric pressure sensor is used, the pressure difference of window both sides is measured, i.e., indoors by barometric pressure sensor placement
One end of leather hose is connected in barometric pressure sensor by window side, and the other end is connected to outdoor, can thus be recorded constantly
The pressure difference of window both sides waits after testing, and the data in barometric pressure sensor is exported in computer, during acquiring experiment
The arithmetic average pressure differential deltap P of window both sides；
4) the length L and depth Z in window gap are measured with tape measure；
5) L and Z that average pressure differential deltap P that the infiltration air quantity Q that is surveyed by step 1 or 2), step 3) are surveyed, step 4) are surveyed
Substitute into the expression formula h=h of window chinky altitude1+h2, window gap height h is solved,
h1={ 6uzQ/ Δs PL+[6uzQ/ΔPL)2-(CρQ/6L2ΔP)3]1/2}1/3
h2={ 6uzQ/ Δs PL-[6uzQ/ΔPL)2-(CρQ/6L2ΔP)3]1/2}1/3
Wherein u is air force viscosity；C=1.5+n, n are the number of the quarter bend in window gap；ρ is atmospheric density.
The beneficial effects of the present invention are：The measuring and calculation method of window gap size of the present invention, compensates in engineering and stitches
The deficiency of gap elevation carrection inaccuracy, facilitates the measurement of Practical Project.
Description of the drawings
Fig. 1 is trace gas concentration attenuation method schematic diagram of the present invention；
Fig. 2 is search gas constant density method instrumentation plan of the present invention.
Specific implementation mode
Due to window gap size and by the pressure difference of the infiltration air quantity in window gap and window both sides, there are certain passes
System, abbreviation solve the relational expression for calculating gap height h and the infiltration air quantity Q and window both sides pressure differential deltap p by window gap, obtain
Go out the calculation expression relational expression about window gap height h, then the pressure of the infiltration air quantity Q in window gap, window both sides will be passed through
Poor Δ p, the length L in window gap, depth Z are measured respectively, substitute into the expression formula of window chinky altitude, and the gap for finding out window is high
Spend h.
First, oozing by window gap is calculated by trace gas concentration damped method or search gas constant density method
Ventilative amount Q；Then, using barometric pressure sensor, the pressure differential deltap P at window both ends is measured, i.e., is disposed barometric pressure sensor
One end of leather hose is connected in barometric pressure sensor by window side indoors, and the other end is connected to outdoor, thus can when
The pressure difference for engraving record window both sides, waits after testing, the data in barometric pressure sensor is exported in computer, reality is acquired
The average pressure differential deltap P of window both sides during testing；Finally, the length L and depth Z in window gap are measured with tape measure, then will pass through window
Infiltration air quantity Q, the pressure differential deltap P of window both sides, the length L in window gap and the depth Z in family gap substitute into window chinky altitude
Calculation expression obtains the height value in window gap
A kind of measuring and calculation method of window gap size, the laboratory apparatus used have search gas analyzer, tracer gas
Sampler body instrument, barometric pressure sensor, tape measure.Room is measured using trace gas concentration damped method or search gas constant density method
In by the infiltration air quantity in window gap, if the infiltration air quantity for passing through room window gap is a steady-state value it is necessary to adopt
With trace gas concentration attenuation method by the infiltration air quantity in window gap, as shown in Figure 1, specific measurement process is in this way
, search gas instrument is opened, is connected on computer software, then arranges measuring point, one end of leather hose is connected to instrument,
The other end is arranged in room center, then, discharges a certain amount of search gas, opens fan and stir evenly indoor gas, when one end
Between after, close fan, removing window gap to be measured in sealing room is had the gap, and starts to test, and waits until interior tracer gas
After the concentration of body drops to prescribed concentration, stop experiment, handles the data on computer software, calculate oozing by window gap
Ventilative amount Q；
If the infiltration air quantity for passing through room window gap is a unstable state value, as shown in Fig. 2, using search gas perseverance
Determine concentration method and measure infiltration air quantity by window, that is, being had the gap for removing window gap to be measured in room is sealed, by tracer
Gas apparatus is opened, and is connected on computer software, and by one root skin pipe of the gas collecting mouth of search gas instrument and tracer is housed
The steel cylinder of gas is connected, and then arranges measuring point, opens the valve of steel cylinder, test a period of time, stops experiment, will be in this period
Experiment measured each moment acquires weighted average by the infiltration air quantity in window gap, this weighted average is exactly
Pass through the average infiltration air quantity Q in window gap in this period.
Then, using barometric pressure sensor, the pressure difference of window both sides is measured, i.e., barometric pressure sensor is placed in room
Interior window side, one end of leather hose is connected in barometric pressure sensor, and the other end is connected to outdoor, thus can when engrave
The pressure difference for recording window both sides, waits after testing, the data in barometric pressure sensor is exported in computer, experiment periods are acquired
Between window both sides arithmetic average pressure differential deltap P；The length L and depth Z in window gap are measured with tape measure；Finally with corresponding formula
The relational expression of pressure difference and infiltration air quantity to window chinky altitude and window both sides solves, and obtains about window gap height h (h
=f (Q, Δ P, L, Z)) expression formula, then by it is above-mentioned measure by the infiltration air quantity Q in window gap, window both sides it is big
The expression formula of the length L and depth Z substitution window chinky altitudes in air pressure force difference Δ P and window gap find out the reality in window gap
Border height h.
Calculate the expression formula h=h of window chinky altitude1+h2(since the expression formula of window gap height h is too long, therefore point
It is two sections, is denoted as h1、h2), substitute into parametric solution window chinky altitude.Wherein h1And h2：
h1={ 6uzQ/ Δs PL+[6uzQ/ΔPL)2-(CρQ/6L2ΔP)3]1/2}1/3 (1)
h2={ 6uzQ/ Δs PL-[6uzQ/ΔPL)2-(CρQ/6L2ΔP)3]1/2}1/3 (2)
Wherein, ρ indicates atmospheric density；U indicates air force viscosity；One window gap of C=1.5+n, wherein n expression
The number of quarter bend.
Claims (1)
1. a kind of measuring and calculation method of window gap size, which is characterized in that specifically comprise the following steps：
If 1) be a steady-state value by the infiltration air quantity in window gap between institute's measuring room, surveyed using trace gas concentration damped method
Amount is opened search gas instrument, is connected on computer software, then arranges measuring point by the infiltration air quantity in window gap,
One end of leather hose is connected on search gas instrument, the other end is arranged in the center in room, and then, release is a certain amount of
Search gas opens fan and stirs evenly indoor gas, after a period of time, closes fan, seals and remove window gap to be measured in room
Had the gap, start to test, after the concentration of indoor search gas drops to prescribed concentration, stop experiment, handle computer
Data on software calculate the infiltration air quantity Q by window gap；
If 2) be a unstable state value by the infiltration air quantity in window gap between institute's measuring room, using search gas constant density method
The infiltration air quantity Q by window gap is measured, that is, seals and removes being had the gap for window gap to be measured in room, by search gas
Instrument is opened, and is connected on computer software, and by one root skin pipe of the gas collecting mouth of search gas instrument and search gas is housed
Steel cylinder be connected, then arrange measuring point, open the valve of steel cylinder, start to test, test a period of time, stop experiment, by this section
That measured each moment is tested in the time acquires weighted average by the infiltration air quantity in window gap, this weighted average
Value is exactly the average infiltration air quantity Q by window gap in this period；
3) barometric pressure sensor is used, the pressure difference of window both sides is measured, i.e., barometric pressure sensor is placed in indoor window
One end of leather hose is connected in barometric pressure sensor by side, and the other end is connected to outdoor, can thus record window constantly
The pressure difference of both sides waits after testing, and the data in barometric pressure sensor are exported in computer, acquires window during experiment
The arithmetic average pressure differential deltap P of both sides；
4) the length L and depth Z in window gap are measured with tape measure；
5) L and Z that average pressure differential deltap P that the infiltration air quantity Q that is surveyed by step 1 or 2), step 3) are surveyed, step 4) are surveyed are substituted into
The expression formula h=h of window chinky altitude1+h2, window gap height h is solved,
h1={ 6uzQ/ Δs PL+[6uzQ/ΔPL)2-(CρQ/6L2ΔP)3]1/2}1/3
h2={ 6uzQ/ Δs PL-[6uzQ/ΔPL)2-(CρQ/6L2ΔP)3]1/2}1/3
Wherein u is air force viscosity；C=1.5+n, n are the number of the quarter bend in window gap；ρ is atmospheric density.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810053072.0A CN108709477B (en) | 2018-01-19 | 2018-01-19 | method for testing and calculating window gap size |
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| CN201810053072.0A CN108709477B (en) | 2018-01-19 | 2018-01-19 | method for testing and calculating window gap size |
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| CN108709477A true CN108709477A (en) | 2018-10-26 |
| CN108709477B CN108709477B (en) | 2019-12-10 |
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| CN101858868A (en) * | 2010-05-20 | 2010-10-13 | 同济大学 | Method and device for testing distress in concrete |
| CN202108497U (en) * | 2011-05-24 | 2012-01-11 | 山东科技大学 | Height detection controller for fracture zone |
| CN105136072A (en) * | 2015-08-27 | 2015-12-09 | 长安大学 | Tunnel lining crack depth measuring method and measuring device |
| CN105137502A (en) * | 2015-06-25 | 2015-12-09 | 山东科技大学 | Segmental observation system for growth height of top-board water guiding fissure zone |
| CN204963835U (en) * | 2015-10-09 | 2016-01-13 | 北京智博联科技股份有限公司 | Crack depth automatic checkout device |
| CN105843992A (en) * | 2016-03-17 | 2016-08-10 | 成都创源油气技术开发有限公司 | Shale gas numerical simulation method based on fracture network system and percolation characteristics |
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| US2991558A (en) * | 1958-07-31 | 1961-07-11 | Pratt & Whitney Co Inc | Air gage cartridge |
| JPH1151628A (en) * | 1997-08-08 | 1999-02-26 | Randotetsuku:Kk | Height measuring instrument for industrial machine |
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| CN101858868A (en) * | 2010-05-20 | 2010-10-13 | 同济大学 | Method and device for testing distress in concrete |
| CN202108497U (en) * | 2011-05-24 | 2012-01-11 | 山东科技大学 | Height detection controller for fracture zone |
| CN105137502A (en) * | 2015-06-25 | 2015-12-09 | 山东科技大学 | Segmental observation system for growth height of top-board water guiding fissure zone |
| CN105136072A (en) * | 2015-08-27 | 2015-12-09 | 长安大学 | Tunnel lining crack depth measuring method and measuring device |
| CN204963835U (en) * | 2015-10-09 | 2016-01-13 | 北京智博联科技股份有限公司 | Crack depth automatic checkout device |
| CN105843992A (en) * | 2016-03-17 | 2016-08-10 | 成都创源油气技术开发有限公司 | Shale gas numerical simulation method based on fracture network system and percolation characteristics |
| CN206648617U (en) * | 2017-01-22 | 2017-11-17 | 北京市华清地热开发集团有限公司 | A kind of ground buried pipe of ground source heat pump down tube depth measurement device |
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| CN108709477B (en) | 2019-12-10 |
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