KR100332583B1 - A jig for the measurement of air flow rate in duct - Google Patents
A jig for the measurement of air flow rate in duct Download PDFInfo
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- KR100332583B1 KR100332583B1 KR1019990053176A KR19990053176A KR100332583B1 KR 100332583 B1 KR100332583 B1 KR 100332583B1 KR 1019990053176 A KR1019990053176 A KR 1019990053176A KR 19990053176 A KR19990053176 A KR 19990053176A KR 100332583 B1 KR100332583 B1 KR 100332583B1
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- measuring
- duct
- jig
- measurement
- air flow
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- 238000005259 measurement Methods 0.000 title claims abstract description 32
- 238000004378 air conditioning Methods 0.000 abstract description 3
- 230000006866 deterioration Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 238000012935 Averaging Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/18—Supports or connecting means for meters
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
- Measuring Volume Flow (AREA)
Abstract
본 발명은 원자력시설 또는 일반 냉난방시설에서 송풍기 및 덕트의 풍량을 측정할 때 휴대용 풍속측정기를 측정자가 직접 손으로 측정위치에 1분 이상 고정시켜야 하는 불편함을 해소하고, 측정기의 흔들림이나 측정위치의 불일치로 인한 측정값의 정밀도 저하를 방지하기 위하여 풍량측정용 지그를 제공하기 위한 것이다.The present invention solves the inconvenience of measuring the wind speed of the blower and the duct in a nuclear power plant or a general air-conditioning facility by hand measuring the portable wind measuring instrument to the measuring position by hand for at least 1 minute. In order to prevent the deterioration of the measurement value due to mismatch, it is to provide a jig for measuring the air volume.
이 장치의 특징은 풍속계를 풍량측정용 지그에 고정하고 덕트에 부착시키기 위해서 마그네틱스텐드를 이용하는 것이며, 측정자가 직접 손으로 측정기를 측정지점에 삽입할 때는 육안으로 위치를 식별할 수 없지만 이 장치는 직선이동용 라체트, 회전형 라체트와 눈금자가 달린 측정기 홀더를 사용하여 측정지점 전·후, 좌·후, 상·하 위치를 정밀하게 삽입할 수 있도록 고안하여 측정값의 정밀도를 향상시키고 또한 측정시간을 단축시킬 수 있게 한 것이다.The feature of this device is the use of a magnetic stand to fix the anemometer to the air flow measuring jig and to attach it to the duct.When the instrument is inserted by hand directly into the measuring point, the position cannot be visually identified. It is designed to precisely insert the position before, after, after, and after the measuring point by using the movable ratchet, the rotating ratchet and the measuring holder with the ruler to improve the accuracy of the measured value and also the measuring time. It is to shorten the time.
Description
(발명의 대상)(Object of invention)
본 발명은 덕트의 풍속을 정밀하고 편리하게 측정하기 위하여 고안된 풍량측정용 지그에 관한 것이다.The present invention relates to a wind volume measurement jig designed to measure the wind speed of the duct precisely and conveniently.
일반적으로 송풍기 또는 덕트의 풍량 측정은 피토정압관이나 풍속계를 사용한다. 이 때 측정기를 덕트속에 삽입하여 공기의 흐름방향에 직각이 되도록 하고, 상하·좌우의 위치 변동 없이 측정공마다 1분 이상 유지하는 것은 어렵다. 또한 덕트내에 측정기의 센서부분을 삽입하였을 때 어느 방향 또는 어느 위치에 있는지를 육안으로 확인할 수 없기 때문에 측정기를 정위치에 유지하기는 어려우며, 따라서 측정값의 정밀도가 저하된다. 그러므로 풍속측정기를 사용하여 덕트의 풍량을 측정할 때 종래 측정방법의 단점을 보완하고 정밀한 측정값을 얻을 수 있도록 하기 위해서 보조장치인 덕트 풍량측정용 지그를 고안하였다.Generally, the air flow measurement of the blower or the duct uses a pitot pressure pipe or an anemometer. At this time, it is difficult to insert the measuring instrument into the duct so that it is perpendicular to the flow direction of air, and keep it for more than one minute for each measuring hole without changing the position of up, down, left and right. In addition, when the sensor portion of the measuring instrument is inserted into the duct, it is difficult to visually check which direction or which position it is in, so that it is difficult to maintain the measuring instrument in the correct position, thus reducing the accuracy of the measured value. Therefore, in order to compensate the shortcomings of the conventional measuring method and to obtain precise measurement value when measuring the air flow rate of the duct using the wind speed measuring instrument, a jig for duct air flow measurement was devised.
(종래의 기술)(Conventional technology)
덕트의 풍량을 측정할 때 덕트내에서 단면위치에 따라 유속이 일정하지 않으므로 각 위치에서 유속을 1분이상 측정하여 얻은 측정값을 평균하여 덕트의 단면적에 곱함으로서 풍량을 구한다. 풍량측정위치와 측정개수는 공기조화설비의 T.A.B(testing, adjusting and balancing) 기준에 의해서 정해진다.측정개수는 사각덕트의 경우 덕트의 크기에 따라 다르지만 정확한 평균값을 얻기 위하여 최소 16개소이며 최대 64개소 이상은 넘지 않는 것이 좋다. 또한 측정개수가 64개이하 일때는 측정위치의 간격이 150㎜를 초과하지 않아야 한다는 기준에 의해서 수행된다. 종래의 방법에서는 풍량을 측정하기 위해서는 수십개에 이르는 측정위치에 풍속계를 손으로 직접 삽입하여 들고 있어야만 하기 때문에 진동 또는 측정자에 의해서 흔들림이 발생할 수 도 있고, 풍속계의 위치를 육안으로 확인하여 위치교정을 할 수 없으므로 측정에 많은 불편을 초래할 뿐만 아니라 정확한 측정값을 얻기가 곤란하였다. 특히, 현장에서 측정할 때는 측정위치가 매우 높고 장소가 협소한 경우도 있어 이러한 경우 정밀한 측정이 곤란한 문제점이 있었다.또한, 일본에서 개발한 풍량측정장치(특개평9-21662)는 덕트내에서 정밀한 풍량을 측정하기 위해서 센서, 센서삽입장치 및 데이터처리장치 등을 결합한 풍량측정장치로서 보조장치인 본 발명의 풍량측정용 지그와는 다르다. 일본 장치의 경우 측정위치가 수평방향이 아닌 수직방향으로 측정할 경우 센서의 높이를 조정해야 하며, 측정위치가 높아 사다리를 놓고 올라가 측정할 경우는 측정이 곤란하다. 즉 이러한 장치로 현장에서 풍량을 측정하는 것은 매우 불편하므로 유체실험실 또는 풍동실에 사용되는 덕트의 풍량측정에 적합한 장치라 할 수 있다.본 발명은 현재 상품화되어 있는 긴 센서봉이 달린 휴대용 풍속계 또는 피토정압관을 사용할 때, 측정자가 풍량을 정밀하고 간편하게 측정할 수 있도록 하기 위한 보조장치이다. 또한 이 발명은 실험실과 풍동실 뿐만 아니라 현장에서 측정장소의 협소 또는 측정높이에 관계없이 풍량을 측정할 때 보조장치로 편리하게 사용할 수 있을 뿐만 아니라 한 사람이 풍량측정작업을 원활이 수행할 수 있는 장점을 갖고 있다.Since the flow velocity is not constant according to the cross-sectional position in the duct when measuring the air flow rate of the duct, the air volume is calculated by multiplying the cross-sectional area of the duct by averaging the measured values obtained by measuring the flow velocity at each position for more than 1 minute. The air flow measurement position and the number of measurement are determined by the TAB (testing, adjusting and balancing) standard of the air conditioning system.The number of measurement varies depending on the size of the duct in the case of the square duct, but at least 16 places and up to 64 places to obtain an accurate average value. It is better not to exceed the above. In addition, when the number of measurement is less than 64, it is performed on the basis that the spacing of measuring position should not exceed 150mm. In the conventional method, in order to measure the air volume, the anemometer must be inserted and held by hand in dozens of measurement positions. Therefore, vibration or vibration may be caused by the measurer. It is not only possible to cause a lot of inconvenience in the measurement, but also to obtain accurate measurement values. In particular, when measuring in the field, the measurement position is very high and the place is narrow in some cases, and thus, there is a problem that precise measurement is difficult. In addition, the air flow measuring device (Japanese Patent Application Laid-Open No. Hei 9-21662) developed in Japan is precise in duct. The air flow rate measuring device that combines a sensor, a sensor insertion device, a data processing device, and the like to measure the air flow rate is different from the air flow rate measuring jig of the present invention as an auxiliary device. In the case of Japanese devices, if the measurement position is measured in the vertical direction instead of the horizontal direction, the height of the sensor must be adjusted. That is, it is very inconvenient to measure the air volume in the field with such a device, and thus it is a device suitable for measuring the air volume of the duct used in the fluid laboratory or the wind tunnel room. The present invention is a portable anemometer or phytostatic pressure with a long sensor rod that is currently commercialized. When using a tube, it is an auxiliary device that allows the measurer to measure the air volume precisely and simply. In addition, the present invention can be conveniently used as an auxiliary device when measuring the air volume regardless of the measurement location or the height of the measurement site as well as in the laboratory and the wind tunnel room, so that one person can perform the air volume measurement operation smoothly. It has merit.
(발명의 상세한 목적)(Detailed Purpose of the Invention)
발명의 목적은 측정자가 풍량을 측정할 때 측정기를 손으로 계속 들고 있어야하는 불편을 해소하고, 측정보조장치인 지그를 이용하여 정확한 위치에 고정하므로써 정밀한 측정값을 얻기 위함이다.An object of the present invention is to solve the inconvenience of having to hold the measuring device by hand when measuring the air volume, and to obtain a precise measured value by fixing the correct position using a jig as a measuring aid.
(발명의 요점)(Point of invention)
본 발명은 상품화된 풍속측정기(풍속계 또는 피토정압관)를 보조장치인 지그에 고정함으로써 종래의 단점인 측정기의 흔들림을 방지할 수 있도록 하였다. 이 보조장치는 측정기를 덕트의 측정공에 삽입할 때 정확한 위치제어를 하기 위하여 회전용 및 직선이동용 라체트(ratchet)를 사용하고, 지그의 고정은 마그네틱스탠드을 사용하며, 또한 측정지점에 정확히 삽입하기 위해서 측정기홀더에 눈금자를 부착하여 위치선택의 정확성을 추구하였다.The present invention is to fix the commercialized wind speed measuring instrument (anemometer or pitot positive pressure pipe) to the jig as an auxiliary device to prevent the shaking of the conventional measuring instrument. This auxiliary device uses a ratchet for rotational and linear movement for precise positioning control when inserting the measuring instrument into the measuring hole of the duct. The fixing of the jig uses a magnetic stand and also inserts it correctly at the measuring point. In order to achieve accuracy of position selection, a ruler was attached to the measuring holder.
도 1은 덕트에서 풍량측정을 수행하기 위하여 풍속계를 삽입한 풍량측정용 지그의 사용 예를 표시한 사시도.1 is a perspective view showing an example of the use of the air flow measurement jig inserted an anemometer to perform the air flow measurement in the duct.
도 2는 풍량측정용 지그의 조립도도 3은 덕트 풍량측정용 지그에 사용되는 풍속계 사진2 is an assembly diagram of the air flow measurement jig 3 is an anemometer photo used in the jig for duct air flow measurement
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
(1) : 마그네틱스텐드 (2)(4) : 회전용 라체트(1): Magnetic stand (2) (4): Ratchet for rotation
(3)(5) : 직선이동용 라체트(3) (5): Ratchet for linear movement
(6) : 눈금자붙이 측정기 홀더(중공형으로 내부에 풍속계나 피토정압관을 삽입하여 고정)(6): Measuring instrument holder with ruler (hollow type, fixed by inserting anemometer or pitot pressure pipe inside)
(7) : 풍속계의 센서(7-1) : 풍속계의 센서연결봉(7-2) : 풍속지시계(displayer)(7): Sensor of anemometer (7-1): Sensor connecting rod of anemometer (7-2): Wind speed indicator
(발명의 구성)Composition of the Invention
풍량측정용 지그의 구성은 덕트에 지그를 부착시키는 마그네틱스텐드(1), 측정기를 측정공에 삽입하여 측정하고자 하는 위치에 이동하여 고정시킬 수 있는 회전용라체트(2, 4)와 직선이동용라체트(3, 5), 그리고 풍속계의 센서연결봉(7-1)을 지그에 고정할 수 있는 측정기홀더(6)로 구성되어 있다.The air flow measurement jig consists of a magnetic stand (1) for attaching the jig to the duct, a rotary ratchet (2, 4) for inserting the measuring instrument into the measuring hole, and moving and fixing it to a position to be measured. It consists of a measuring holder (6) which can fix the check (3, 5) and the sensor connecting rod (7-1) of the anemometer to the jig.
- 장치의 동작-Device behavior
A) 풍속계를 사용할 때(1) 풍량측정기준(공기조화설비의 T.A.B 또는 ANSI/ASME510-1980)에 의해서 측정공의 수와 삽입깊이에 따른 측정회수를 산정한다.(여기서 측정공의 수와 삽입깊이에 따른 측정회수의 곱이 풍속측정위치의 개수이다.)A) When using the anemometer (1) Calculate the number of measurement holes according to the number of insertion holes and the depth of insertion according to the air flow measurement criteria (TAB or ANSI / ASME510-1980 of the air conditioning system) The product of the number of measurements by depth is the number of wind speed measurement positions.)
(2) 측정하고자 할 덕트의 적절한 위치에 마그네틱 스텐드(1)를 부착시키고 회전용 라체트(2)와 직선이동용 라체트(3)를 이용하여 측정하고자 하는 측정공의 위치 정면에 측정기홀더(6)를 위치시킨다.(2) Attach the magnetic stand (1) to the proper position of the duct to be measured and use the rotating ratchet (2) and the linear movement ratchet (3) to measure the measuring holder in front of the position of the measuring hole (6). ).
(3) 풍속계의 센서연결봉(7-1)을 측정기홀더(6)에 삽입하여 공기의 흐름방향과 풍속계 센서(7)의 방향이 일직선이 되도록 고정시킨다.(4) 직선이동용 라체트(5)에 조립되어 있는 측정기홀더(6)를 전진시켜 측정기의 센서(7)를 측정위치에 삽입시킨다. 이 때 삽입깊이는 눈금자(도2의 6:눈금붙이 측정기 홀더)를 이용한다.(3) Insert the sensor connecting rod (7-1) of the anemometer into the measuring instrument holder (6) to fix the flow direction of the air and the direction of the anemometer sensor (7) in a straight line. (4) Ratchet for linear movement (5) The measuring instrument holder 6 assembled in the upper portion is advanced to insert the sensor 7 of the measuring instrument into the measuring position. At this time, the insertion depth uses a ruler (6: scale measuring holder).
(5) 풍속계의 센서(7)가 정확한 측정위치에 고정되었다고 판단되면 1분 이상 풍속을 측정하며 측정이 완료되면 측정기홀더(6)를 다른 위치로 이동시켜 가면서 측정한다.(6) 한 측정공에서 측정이 완료되면 측정기홀더(6)를 완전히 후퇴시켜 풍속계의 센서연결봉(7-1)에 의해 풍속계의 센서(7)를 덕트 밖으로 이동시킨 다음 다른 측정공에 삽입하여 측정한다.(5) If it is determined that the sensor (7) of the anemometer is fixed at the correct measuring position, measure the wind speed for at least 1 minute, and when the measurement is completed, measure the measuring holder (6) while moving to another position. When the measurement is completed in the measuring instrument holder (6) is completely retracted by the sensor connecting rod (7-1) of the anemometer to move the sensor (7) of the anemometer out of the duct and then inserted into another measuring hole to measure.
B) 피토관 사용할 때B) when using pitot tube
(1) 피토관은 풍속계처럼 직선형이 아니고 삽입할 부분이 기역자형이므로 첫 삽입 위치에 고정시킬 때 회전용라체트(4)를 사용하여 덕트속에 삽입시킨 후 풍속계와 같은 방법으로 측정한다.(1) Since the pitot tube is not straight, like the anemometer, and the part to be inserted is a lifter type, when it is fixed at the first insertion position, the pitot tube is inserted into the duct using a rotary ratchet (4) and measured in the same manner as the anemometer.
(변형예, 응용예와 법률적 해석)(Variants, applications and legal interpretations)
본 발명은 실시예에 국한되지 아니하고 설계변경 가능한 구조도 청구범위에국한된다.The present invention is not limited to the embodiment, and the structure capable of design change is also limited to the claims.
상기의 본 발명은 측정자가 측정기를 측정공마다 1분 이상 손으로 들고 있어야 하는 불편함 해소하며, 정확한 위치 고정 및 흔들림을 방지할 수 있기 때문에 정밀한 측정값 생산할 수 있다. 또한 종래에는 두사람 이상의 작업자가 필요하였지만 측정용 지그를 이용함으로써 한사람이 풍량을 측정할 수 있다.The present invention described above can solve the inconvenience of having to hold the measuring device by hand for at least one minute per measuring hole, and can accurately produce a precise measurement value because it can prevent the accurate positioning and shaking. In addition, although two or more workers were required in the past, one person can measure the air volume by using a measuring jig.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990053176A KR100332583B1 (en) | 1999-11-26 | 1999-11-26 | A jig for the measurement of air flow rate in duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990053176A KR100332583B1 (en) | 1999-11-26 | 1999-11-26 | A jig for the measurement of air flow rate in duct |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20010048487A KR20010048487A (en) | 2001-06-15 |
| KR100332583B1 true KR100332583B1 (en) | 2002-04-17 |
Family
ID=19622173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019990053176A KR100332583B1 (en) | 1999-11-26 | 1999-11-26 | A jig for the measurement of air flow rate in duct |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100332583B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100805207B1 (en) | 2006-09-21 | 2008-02-21 | 박재현 | Distribution measuring apparatus for smoke protection |
| KR20220037582A (en) | 2020-09-18 | 2022-03-25 | 한국산업기술시험원 | Blower test apparatus and its test method |
-
1999
- 1999-11-26 KR KR1019990053176A patent/KR100332583B1/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100805207B1 (en) | 2006-09-21 | 2008-02-21 | 박재현 | Distribution measuring apparatus for smoke protection |
| KR20220037582A (en) | 2020-09-18 | 2022-03-25 | 한국산업기술시험원 | Blower test apparatus and its test method |
| KR102436627B1 (en) | 2020-09-18 | 2022-08-25 | 한국산업기술시험원 | Blower test apparatus and its test method |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20010048487A (en) | 2001-06-15 |
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