JPH09145517A - Method for measuring hermeticity of building - Google Patents
Method for measuring hermeticity of buildingInfo
- Publication number
- JPH09145517A JPH09145517A JP30560995A JP30560995A JPH09145517A JP H09145517 A JPH09145517 A JP H09145517A JP 30560995 A JP30560995 A JP 30560995A JP 30560995 A JP30560995 A JP 30560995A JP H09145517 A JPH09145517 A JP H09145517A
- Authority
- JP
- Japan
- Prior art keywords
- building
- air
- ventilation fan
- ventilation
- measuring
- 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.)
- Granted
Links
Landscapes
- Measuring Fluid Pressure (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、建物の気密度を測
定する方法に関する。TECHNICAL FIELD The present invention relates to a method for measuring the airtightness of a building.
【０００２】[0002]
【従来の技術】近年、快適な住環境をつくるため、隙間
風を減らす工夫がなされ、建物の気密化が進んでいる。
建物の気密化を行なう場合、計画的に快適な換気を行な
えるか否かを判定しなければならず、そのため気密性の
達成度合いを正確に測定する必要がある。2. Description of the Related Art In recent years, in order to create a comfortable living environment, measures have been taken to reduce drafts, and the building is becoming more airtight.
When airtightening a building, it is necessary to determine whether or not ventilation can be comfortably planned, and therefore it is necessary to accurately measure the degree of achievement of airtightness.
【０００３】従来、建物の気密度測定方法としては、図
４に示すように、建物１が完成し、ユーザに引き渡す直
前に、建物１の窓サッシなどの開口部２に建物１内の空
気を外部に排出する排気ダクト３および排気ダクト３内
の風量を測定する風量計４を設置し、排気ダクト３の上
流側に建物１内外に所定の圧力差を作り出す電動ファン
５を設置すると共に、建物１内に建物１内外の空気圧の
差圧を検出する電子ダイヤフラム式の微差圧計６を設置
し、風量計４および微差圧計６を制御すると共に、デー
タ処理を行なうマイコン７に接続し、電動ファン５によ
り建物１内を減圧または加圧したときの風量−差圧特性
（以下、ＰＱ特性という）曲線から、マイコン７により
建物１の気密度を求めている。Conventionally, as a method for measuring the airtightness of a building, as shown in FIG. 4, immediately before the building 1 is completed and handed over to a user, the air inside the building 1 is put into an opening 2 such as a window sash of the building 1. An exhaust duct 3 that discharges to the outside and an air flow meter 4 that measures the amount of air in the exhaust duct 3 are installed, an electric fan 5 that creates a predetermined pressure difference inside and outside the building 1 is installed on the upstream side of the exhaust duct 3, and the building An electronic diaphragm type fine differential pressure gauge 6 for detecting the differential pressure of air pressure inside and outside the building 1 is installed in the building 1, and the air volume meter 4 and the fine differential pressure gauge 6 are controlled and connected to a microcomputer 7 for data processing, which is electrically driven. The airtightness of the building 1 is determined by the microcomputer 7 from the air flow-differential pressure characteristic (hereinafter referred to as PQ characteristic) curve when the inside of the building 1 is decompressed or pressurized by the fan 5.
【０００４】なお、図中、８は建物１内に空気を取り入
れる給気口であり、建物１の側壁に設けられている。９
は建物１の側壁に装着された排気ダクトであり、測定時
は閉じておく。１０は換気ファンが収納されたレンジフ
ードであり、換気ファンは排気ダクト９の吸い込み側に
設けられている。また、６ａ，６ｂは微差圧計６に建物
１内外の空気圧を供給する測定管である。In the figure, numeral 8 is an air supply port for introducing air into the building 1, which is provided on the side wall of the building 1. 9
Is an exhaust duct attached to the side wall of the building 1, and is closed during measurement. Reference numeral 10 is a range hood that houses a ventilation fan, and the ventilation fan is provided on the suction side of the exhaust duct 9. Further, 6a and 6b are measuring pipes for supplying air pressure inside and outside the building 1 to the differential pressure gauge 6.
【０００５】なお、かかる技術は、たとえば、住宅気密
測定器（ＫＮＳ−４０００シリーズ／全自動計算タイ
プ）コーナー札幌株式会社，１９９３年度発行カタログ
に開示されている。Such a technique is disclosed in, for example, a residential airtightness measuring device (KNS-4000 series / fully automatic calculation type) Corner Sapporo Co., Ltd., 1993 catalog.
【０００６】[0006]
【発明が解決しようとする課題】ところが、前述した気
密度測定方法においては、次のような問題点があること
が本発明者により見い出された。従来の気密度測定は、
建物１をユーザに引き渡す直前、すなわち、人が住んで
いない状態で行なわれていた。ところが、人が住んでい
ない建物と人が住んでいる建物とでは、空気（換気）の
流れる経路が異なる。つまり、人が住んでいない建物で
は、屋外，建物１の隙間，室内，気密測定器，屋外の順
に空気が流れ、人が住んでいる建物では、屋外，建物１
の隙間，室内，レンジフード，屋外の順に空気が流れ
る。このため、測定結果に誤差が生じ、人が住んでいる
状態での正確な気密度測定ができない。However, the present inventor has found that the above-mentioned airtightness measuring method has the following problems. Conventional airtightness measurement is
It was performed immediately before the building 1 was handed over to the user, that is, in a state where no person lived. However, the flow path of air (ventilation) is different between a building in which people do not live and a building in which people live. That is, in a building in which no person lives, air flows in the order of outdoor, gap between buildings 1, indoor, airtightness measuring instrument, and outdoor, and in a building in which a person lives, outdoor, building 1
Air flows in the order of gap, indoors, range hood, and outdoor. Therefore, an error occurs in the measurement result, and accurate airtightness measurement cannot be performed in a state where a person lives.
【０００７】また、窓サッシなどの開口部２に排気ダク
ト３などの専用設備を取り付けなければならないので、
測定に時間が掛かる上、その際建物１の床や壁を損傷す
る。排気ダクト３や風量計４を常時設置することが難し
く、建物１の気密度の経年変化を測定する場合、コスト
と手間が掛かる。本発明の目的は、前述した問題点に鑑
み、居住状態での気密度測定を容易かつ正確に行なうこ
とができる建物の気密度測定方法を提供することにあ
る。Further, since special equipment such as the exhaust duct 3 must be attached to the opening 2 such as the window sash,
The measurement takes time, and the floor and walls of the building 1 are damaged at that time. It is difficult to always install the exhaust duct 3 and the air flow meter 4, and when measuring the secular change of the airtightness of the building 1, cost and labor are required. In view of the above-mentioned problems, an object of the present invention is to provide a method for measuring the airtightness of a building, which can easily and accurately measure the airtightness in a living state.
【０００８】本発明の前記ならびにその他の目的と新規
な特徴は、本明細書の記述および添付図面から明らかに
なるであろう。The above and other objects and novel features of the present invention will become apparent from the description of the present specification and the accompanying drawings.
【０００９】[0009]
【課題を解決するための手段】本願において開示される
発明のうち、代表的なものの概要を簡単に説明すれば、
以下のとおりである。本発明の建物の気密度測定方法
は、換気ファンおよび前記換気ファンによる換気風を外
部に排出する排気ダクトを配設した建物の気密度測定方
法において、前記建物の窓やドアなどの開口部を開放し
た状態で、前記換気ファンを駆動させ、前記換気ファン
の空気吸い込み口および空気吹き出し口に第１の差圧計
を取り付け、前記第１の差圧計により前記換気ファンの
空気吸い込み口と空気吹き出し口との間の空気圧差を検
出した後、前記検出された空気圧差および前記換気ファ
ンの換気風量から前記排気ダクトの圧力損失を算出し、
前記建物の開口部を閉じた状態で、前記換気ファンを駆
動させ、第２の差圧計により前記建物内外の空気圧差を
検出し、前記建物内外の空気圧差および前記換気ファン
の換気風量から前記建物の圧力損失を算出した後、前記
建物の圧力損失から前記排気ダクトの圧力損失を差し引
いて、前記排気ダクトを除く前記建物の圧力損失を求
め、前記建物の気密度を測定するものである。SUMMARY OF THE INVENTION Among the inventions disclosed in the present application, the outline of a representative one will be briefly described.
It is as follows. A method for measuring airtightness of a building of the present invention is a method for measuring airtightness of a building in which an exhaust duct that exhausts ventilation air by the ventilation fan and the ventilation fan to the outside is disposed, and an opening such as a window or door of the building is provided. In the opened state, the ventilation fan is driven, and a first differential pressure gauge is attached to the air suction port and the air blowing port of the ventilation fan, and the air suction port and the air blowing port of the ventilation fan are attached by the first differential pressure meter. After detecting the air pressure difference between and, calculating the pressure loss of the exhaust duct from the detected air pressure difference and the ventilation air volume of the ventilation fan,
With the opening of the building closed, the ventilation fan is driven, the air pressure difference between the inside and outside of the building is detected by a second differential pressure gauge, and the building is determined from the air pressure difference between the inside and outside of the building and the ventilation air volume of the ventilation fan. After calculating the pressure loss of No. 1, the pressure loss of the exhaust duct is subtracted from the pressure loss of the building to obtain the pressure loss of the building excluding the exhaust duct, and the airtightness of the building is measured.
【００１０】従って、前述した建物の気密度測定方法に
よれば、気密度の測定が既設の換気設備を流用して行な
われるので、建物の気密度が実際の使用状態で容易に測
定される。Therefore, according to the above-mentioned method for measuring the airtightness of a building, the airtightness of the building can be easily measured in an actual use state because the airtightness of the building is diverted.
【００１１】[0011]
【発明の実施の形態】以下、本発明の一実施例を図面に
基づいて詳細に説明する。ここで、図１は本発明の一実
施例に係る建物の気密度測定方法を説明する図、図２
（ａ），（ｂ）は本発明の一実施例に係るレンジフード
の内部の要部説明図、図３（ａ），（ｂ）は換気ファン
のＰＱ特性図を示す。また、従来例および実施例を説明
するための全図において、同一の機能を有するものは同
一の符号を付け、その繰り返しの説明は省略する。DETAILED DESCRIPTION OF THE INVENTION An embodiment of the present invention will be described in detail below with reference to the drawings. Here, FIG. 1 is a diagram illustrating a method for measuring the airtightness of a building according to an embodiment of the present invention, FIG.
(A), (b) is a principal part explanatory view inside the range hood which concerns on one Example of this invention, FIG.3 (a), (b) shows the PQ characteristic view of a ventilation fan. Further, in all the drawings for explaining the conventional example and the embodiment, those having the same function are designated by the same reference numeral, and the repeated description thereof will be omitted.
【００１２】図１において、建物１の一側壁には、建物
１の換気風量を外部に排出する排気ダクト９が設けら
れ、排気ダクト９の空気吸い込み側にレンジフード１０
が装着されている。レンジフード１０内には後述する換
気ファン（シロッコファン）が収納されている。建物１
の他側壁には、建物１内に空気を取り入れる給気口８お
よび窓サッシや玄関ドアなどの開口部２が形成されてい
る。In FIG. 1, an exhaust duct 9 for exhausting the ventilation air volume of the building 1 is provided on one side wall of the building 1, and a range hood 10 is provided on the air intake side of the exhaust duct 9.
Is installed. A ventilation fan (sirocco fan) described later is housed in the range hood 10. Building 1
On the other side wall, an air inlet 8 for taking in air into the building 1 and an opening 2 such as a window sash or a front door are formed.
【００１３】図２に示すように、レンジフード１０内に
収納された換気ファン１２は、建物１内外に所定の圧力
差を作り出すものであり、排気ダクト９の吸い込み側に
設けられている。換気ファン１２の空気吸い込み側およ
び排気ダクト９の上流側（換気ファン１２の空気吹き出
し側）には、それぞれ測定管１１ａ，１１ｂを介して高
感度電子式の微差圧計１１が接続されている。測定管１
１ａの上流端には、乱流よけカバー１３が覆設され、測
定管１１ａ内に導入される空気の乱流を防いでいる。As shown in FIG. 2, the ventilation fan 12 housed in the range hood 10 creates a predetermined pressure difference inside and outside the building 1, and is provided on the suction side of the exhaust duct 9. A high-sensitivity electronic type fine differential pressure gauge 11 is connected to the air intake side of the ventilation fan 12 and the upstream side of the exhaust duct 9 (air outlet side of the ventilation fan 12) via measuring tubes 11a and 11b, respectively. Measuring tube 1
A turbulent flow protection cover 13 is provided at the upstream end of 1a to prevent turbulent flow of air introduced into the measuring pipe 11a.
【００１４】建物１内には、建物１内外の空気圧差を検
出する高感度電子式の微差圧計６が設けられ、微差圧計
６には、建物１内外の空気圧を取り入れる測定管６ａ，
６ｂが接続されている。そして、微差圧計６，１１はそ
れぞれマイコン７に接続されている。なお、図中、１４
は、オイルフィルタであり、たとえば台所などでは、調
理油が換気ファン１２に付着するのを防ぐ。Inside the building 1, there is provided a high-sensitivity electronic type differential pressure gauge 6 for detecting an air pressure difference between the inside and outside of the building 1. The fine differential pressure gauge 6 has a measuring pipe 6a for taking in the air pressure inside and outside the building 1.
6b is connected. The fine differential pressure gauges 6 and 11 are respectively connected to the microcomputer 7. In the figure, 14
Is an oil filter and prevents cooking oil from adhering to the ventilation fan 12 in a kitchen, for example.
【００１５】建物１の気密度測定方法は、まず、建物１
の開口部２を開放した後、換気ファン１２を作動する。
次いで、微差圧計１１により換気ファン１２の空気吸い
込み口および空気吹き出し口の空気圧差（Ｐ）を検出す
る。これにより、既に分かっている換気ファン１２の換
気風量（Ｑ）と検出された換気ファン１２の空気圧差
（Ｐ）により、換気ファン１２のＰＱ特性が求められ
る。The method for measuring the airtightness of the building 1 is as follows.
After opening the opening 2 of the ventilation fan 12, the ventilation fan 12 is operated.
Then, the differential pressure gauge 11 detects the air pressure difference (P) between the air intake port and the air outlet port of the ventilation fan 12. As a result, the PQ characteristic of the ventilation fan 12 is obtained from the already known ventilation air volume (Q) of the ventilation fan 12 and the detected air pressure difference (P) of the ventilation fan 12.
【００１６】その後、マイコン７により換気ファン１２
の空気圧差（Ｐ）および換気風量（Ｑ）より排気ダクト
９の圧力損失（ダクト抵抗）を算出する。このとき、Ｐ
Ｑ特性の測定結果より求められた排気ダクト９の圧力損
失と、排気ダクト９の長さや形状より算出された理論上
の圧力損失とを比較し、これらが同一ならば、排気ダク
ト９は良好に施工されているものと判断する（図３
（ａ）参照）。After that, the ventilation fan 12 is operated by the microcomputer 7.
The pressure loss (duct resistance) of the exhaust duct 9 is calculated from the air pressure difference (P) and the ventilation air volume (Q). At this time, P
The pressure loss of the exhaust duct 9 obtained from the measurement result of the Q characteristic and the theoretical pressure loss calculated from the length and shape of the exhaust duct 9 are compared. Judge that it has been installed (Fig. 3
(A)).
【００１７】次に、建物の開口部２を閉じる。換気ファ
ン１２を駆動させ、測定管６ａ、６ｂより建物１内外の
空気圧を取り入れ、微差圧計６により建物１内外の空気
差圧（Ｐ）を検出する。そして、マイコン７により建物
１内外の空気圧差（Ｐ）および換気ファン１２の換気風
量（Ｑ）から建物１の圧力損失を算出した後、建物１の
圧力損失から排気ダクト９の圧力損失を差し引き、建物
１の気密度が測定される（図３（ｂ）参照）。Next, the opening 2 of the building is closed. The ventilation fan 12 is driven, the air pressure inside and outside the building 1 is taken in through the measuring pipes 6a and 6b, and the air differential pressure (P) inside and outside the building 1 is detected by the fine differential pressure gauge 6. Then, after calculating the pressure loss of the building 1 from the air pressure difference (P) inside and outside the building 1 and the ventilation air volume (Q) of the ventilation fan 12 by the microcomputer 7, the pressure loss of the exhaust duct 9 is subtracted from the pressure loss of the building 1, The airtightness of the building 1 is measured (see FIG. 3B).
【００１８】このように、本実施例では、微差圧計１１
を既設の換気ファン１２および排気ダクト９に取り付
け、換気ファン１２の空気圧差を検出することにより、
建物１の気密度が測定されるので、気密度の測定が既設
の換気設備を流用して行なわれ、人が住んでいる状態で
の測定が可能になるため、建物の気密度の測定を正確か
つ容易に行なうことができる。As described above, in this embodiment, the differential pressure gauge 11
Is attached to the existing ventilation fan 12 and the exhaust duct 9, and the air pressure difference of the ventilation fan 12 is detected,
Since the airtightness of the building 1 is measured, the airtightness is measured by utilizing the existing ventilation equipment, and it becomes possible to measure the airtightness of the building accurately. And it can be done easily.
【００１９】以上、本発明者によってなされた発明を、
実施例に基づき具体的に説明したが、本発明は、前記実
施例に限定されるものではなく、その要旨を逸脱しない
範囲で、種々変更可能であることは、言うまでもない。As described above, the invention made by the present inventor is
Although the present invention has been specifically described based on the embodiments, it goes without saying that the present invention is not limited to the embodiments and various modifications can be made without departing from the scope of the invention.
【００２０】[0020]
【発明の効果】本願によって開示される発明のうち、代
表的なものによって得られる効果を簡単に説明すれば、
以下のとおりである。本発明によれば、第１の差圧計を
既設の換気ファンおよび排気ダクトに取り付け、換気フ
ァンの空気圧差を検出することにより、建物の気密度が
測定されるので、気密度の測定が既設の換気設備を流用
して行なわれる。これにより、測定時間を短縮すること
ができ、建物の損傷を防止することができる。また、人
が住んでいる状態での測定が可能になるので、正確な測
定結果が得られ、建物の気密度の経年変化が低コストか
つ容易に測定できる。Advantageous effects obtained by typical ones of the inventions disclosed by the present application will be briefly described as follows.
It is as follows. According to the present invention, the airtightness of a building is measured by attaching the first differential pressure gauge to the existing ventilation fan and the exhaust duct and detecting the air pressure difference of the ventilation fan. It is carried out by diverting ventilation equipment. As a result, the measurement time can be shortened and damage to the building can be prevented. Further, since the measurement can be performed in a state where a person lives, an accurate measurement result can be obtained, and the secular change of the airtightness of the building can be easily measured at low cost.
【図１】本発明の一実施例である建物の気密度測定方法
を説明する図である。FIG. 1 is a diagram illustrating a method for measuring the airtightness of a building which is an embodiment of the present invention.
【図２】（ａ）は、本発明の一実施例であるレンジフー
ドの内部を正面からみたときの要部説明図、（ｂ）は本
発明の一実施例であるレンジフードの内部を側面からみ
たときの要部説明図である。FIG. 2A is an explanatory view of a main part of the inside of a range hood which is an embodiment of the present invention when viewed from the front, and FIG. 2B is a side view of the inside of the range hood which is an embodiment of the present invention. It is an important part explanatory view when it sees.
【図３】（ａ），（ｂ）は換気ファンのＰＱ特性図であ
る。3A and 3B are PQ characteristic diagrams of a ventilation fan.
【図４】従来の建物の気密度測定方法を説明する図であ
る。FIG. 4 is a diagram illustrating a conventional method for measuring the airtightness of a building.
１ 建物 ２ 開口部 ３，９ 排気ダクト ４ 風量計 ５ 電動ファン ６，１１ 微差圧計 ６ａ，６ｂ，１１ａ，１１ｂ 測定管 ７ マイコン ８ 給気口 １０ レンジフード １２ 換気ファン １３ 乱流よけカバー １４ オイルフィルタ 1 Building 2 Opening 3,9 Exhaust Duct 4 Airflow Meter 5 Electric Fan 6,11 Fine Differential Pressure Gauge 6a, 6b, 11a, 11b Measuring Tube 7 Microcomputer 8 Air Supply Port 10 Range Hood 12 Ventilation Fan 13 Turbulence Cover 14 Oil filter
Claims (1)
換気風を外部に排出する排気ダクトを配設した建物の気
密度測定方法において、 前記建物の窓やドアなどの開口部を開放した状態で、前
記換気ファンを駆動させ、前記換気ファンの空気吸い込
み口および空気吹き出し口に第１の差圧計を取り付け、
前記第１の差圧計により前記換気ファンの空気吸い込み
口と空気吹き出し口との間の空気圧差を検出する工程
と、前記検出された空気圧差および前記換気ファンの換
気風量から前記排気ダクトの圧力損失を算出する工程
と、前記建物の開口部を閉じた状態で、前記換気ファン
を駆動させ、第２の差圧計により前記建物内外の空気圧
差を検出する工程と、前記建物内外の空気圧差および前
記換気ファンの換気風量から前記建物の圧力損失を算出
する工程と、前記建物の圧力損失から前記排気ダクトの
圧力損失を差し引いて、前記排気ダクトを除く前記建物
の圧力損失を求め、前記建物の気密度を測定する工程と
を含むことを特徴する建物の気密度測定方法。1. A method for measuring airtightness of a building provided with a ventilation fan and an exhaust duct for exhausting ventilation air from the ventilation fan to the outside, wherein the opening such as a window or door of the building is opened. Drive the ventilation fan, and attach the first differential pressure gauge to the air intake port and the air outlet port of the ventilation fan,
Detecting the air pressure difference between the air intake port and the air outlet port of the ventilation fan by the first differential pressure gauge, and the pressure loss of the exhaust duct from the detected air pressure difference and the ventilation air volume of the ventilation fan. And a step of driving the ventilation fan in a state where the opening of the building is closed and detecting an air pressure difference between the inside and outside of the building by a second differential pressure gauge, and an air pressure difference inside and outside the building and Calculating the pressure loss of the building from the ventilation air volume of the ventilation fan, subtracting the pressure loss of the exhaust duct from the pressure loss of the building, to obtain the pressure loss of the building excluding the exhaust duct, the air of the building A method for measuring the airtightness of a building, comprising the step of measuring the density.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30560995A JP3545855B2 (en) | 1995-11-24 | 1995-11-24 | Building airtightness measurement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30560995A JP3545855B2 (en) | 1995-11-24 | 1995-11-24 | Building airtightness measurement method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09145517A true JPH09145517A (en) | 1997-06-06 |
| JP3545855B2 JP3545855B2 (en) | 2004-07-21 |
Family
ID=17947210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30560995A Expired - Fee Related JP3545855B2 (en) | 1995-11-24 | 1995-11-24 | Building airtightness measurement method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3545855B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010071950A (en) * | 2008-09-22 | 2010-04-02 | Asahi Kasei Homes Co | Method for verifying airtightness of framework under construction |
| WO2016083670A1 (en) * | 2014-11-26 | 2016-06-02 | Si-Tecno Oy | Method for measuring pressure differences between different premises in a building |
| CN106370583A (en) * | 2016-11-08 | 2017-02-01 | 天津天盈新型建材有限公司 | Evaluation method of haze-proof ventilation window screening air permeability |
| CN109632209A (en) * | 2018-12-12 | 2019-04-16 | 雄安万科绿色研发有限公司 | Exhaust duct air-tightness detection method and detection device |
| CN112197918A (en) * | 2020-10-26 | 2021-01-08 | 北京舍得叔叔科技有限公司 | Air tightness detection system and method |
-
1995
- 1995-11-24 JP JP30560995A patent/JP3545855B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010071950A (en) * | 2008-09-22 | 2010-04-02 | Asahi Kasei Homes Co | Method for verifying airtightness of framework under construction |
| WO2016083670A1 (en) * | 2014-11-26 | 2016-06-02 | Si-Tecno Oy | Method for measuring pressure differences between different premises in a building |
| US10481035B2 (en) | 2014-11-26 | 2019-11-19 | Si-Tecno Oy | Method for measuring pressure differences between different premises in a building |
| CN106370583A (en) * | 2016-11-08 | 2017-02-01 | 天津天盈新型建材有限公司 | Evaluation method of haze-proof ventilation window screening air permeability |
| CN106370583B (en) * | 2016-11-08 | 2023-10-27 | 天津市贰拾壹站检测技术有限公司 | Method for evaluating air permeability of haze-preventing ventilation window screening |
| CN109632209A (en) * | 2018-12-12 | 2019-04-16 | 雄安万科绿色研发有限公司 | Exhaust duct air-tightness detection method and detection device |
| CN112197918A (en) * | 2020-10-26 | 2021-01-08 | 北京舍得叔叔科技有限公司 | Air tightness detection system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3545855B2 (en) | 2004-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208187659U (en) | A kind of test device for external window air tightness detection | |
| McWilliams | Review of air flow measurement techniques | |
| US4517826A (en) | Apparatus and method for determining the air leakage characteristics of a structure | |
| CN206161253U (en) | Air conditioner tuber pipe air leakage detection device | |
| JP3545855B2 (en) | Building airtightness measurement method | |
| CA1178826A (en) | Orifice metering fan device | |
| CN217043924U (en) | Variable air volume control system of fume hood | |
| JP2002333396A (en) | Powder detector for duct and powder detection system | |
| JP2001091397A (en) | Airtightness measurement method of building | |
| Francisco et al. | The Nulling Test: A New Measurement Technique of Estimating Duct Leakage in Residential Homes | |
| JPS58154638A (en) | Sampling apparatus of air | |
| KR20130110845A (en) | Heat recovery type ventilator | |
| AU5280498A (en) | Method and apparatus for use in installing a through-the-wall sensing device in a laboratory fume hood | |
| CN217277793U (en) | Hand-held type formaldehyde detection device | |
| KR101829275B1 (en) | Airtightness measurement apparatus for building and method thereof | |
| CN108709701B (en) | Calibrating device for on-site door and window detector | |
| JPH10281922A (en) | Method for measuring airtightness of building | |
| JP3228288U (en) | Air density measuring device structure for air density measurement of buildings | |
| CN211527495U (en) | Air quantity detection equipment | |
| JP2002228537A (en) | Simplified airtightness measuring method | |
| CN111323176A (en) | Building door and window on-site measuring equipment | |
| KR20020091876A (en) | A Digital Testing Device For An Air-Valve | |
| JP2544525B2 (en) | Ventilation status indicator | |
| JPS5922622A (en) | Controlling method of flow rate of sucked air in dust collecting equipment | |
| CN106968417B (en) | Method for detecting smoke insulation performance of exhaust passage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20031222 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Effective date: 20040317 Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Effective date: 20040409 Free format text: JAPANESE INTERMEDIATE CODE: A61 |
|
| LAPS | Cancellation because of no payment of annual fees |