DE102010018494A1 - Mobile measurement device for efficiency determination of heat recovery system in plant, has grid including releasable attachment members e.g. hook and loop fastener, where measuring points are provided at frame of grid - Google Patents
Mobile measurement device for efficiency determination of heat recovery system in plant, has grid including releasable attachment members e.g. hook and loop fastener, where measuring points are provided at frame of grid Download PDFInfo
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- DE102010018494A1 DE102010018494A1 DE201010018494 DE102010018494A DE102010018494A1 DE 102010018494 A1 DE102010018494 A1 DE 102010018494A1 DE 201010018494 DE201010018494 DE 201010018494 DE 102010018494 A DE102010018494 A DE 102010018494A DE 102010018494 A1 DE102010018494 A1 DE 102010018494A1
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- measuring
- grid
- measuring device
- frame
- points
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/30—Supports specially adapted for an instrument; Supports specially adapted for a set of instruments
Abstract
Description
Die Erfindung betrifft eine Messvorrichtung zur Effizienzermittlung von Wärmerückgewinnungs-Systemen in Anlagen zum Belüften von Gebäuden.The invention relates to a measuring device for efficiency determination of heat recovery systems in systems for ventilating buildings.
Es hat sich bisher als schwierig erwiesen, vergleichbare Messergebnisse zur Ermittlung der Effizienz der Wärmerückgewinnung bei Belüftungsanlagen von Gebäuden zu erhalten. Es wurden bisher keine standardisierten Messverfahren entwickelt, die einen objektiven Vergleich im eingebauten Zustand ermöglichen.It has hitherto proven difficult to obtain comparable measurement results for determining the efficiency of heat recovery in ventilation systems of buildings. So far, no standardized measuring methods have been developed that allow an objective comparison in the installed state.
Aufgabe der Erfindung ist es, eine Messvorrichtung zu schaffen, die in den unterschiedlichsten Zentrallüftungsanlagen von Gebäuden zeitweilig einsetzbar ist um die Effizienz von Wärmerückgewinnungssystemen exakt zu ermitteln.The object of the invention is to provide a measuring device which can be temporarily used in a wide variety of central ventilation systems of buildings in order to determine the efficiency of heat recovery systems exactly.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Messvorrichtung ein Messgitter aufweist, das zur lösbaren Befestigung in der Luftströmung der Anlage quer zur Luftströmung an seinem Rand lösbare Befestigungselemente aufweist, dass das Messgitter mindestens eine Messstelle aufweist, und dass das Messgitter mit der/den Messstelle(n) in seiner Gitterebene in seiner Größe ein- oder zweidimensional veränderbar ist.This object is achieved according to the invention in that the measuring device has a measuring grid which has detachable fastening elements for releasable attachment in the air flow of the system transversely to the air flow, that the measuring grid has at least one measuring point, and that the measuring grid with the / the measuring point (n) in its lattice plane in size one or two-dimensionally changeable.
Hierdurch wird eine anpassungsfähige Messvorrichtung für alle vorhandenen oder noch zu entwickelnden WärmeRückGewinnungs-Systems (WRG-System) geschaffen. Es wird ein Tüv-Zertifiziertes, standardisiertes Messverfahren ermöglicht, dass die Qualität und damit die Effizienz von WRG-Systemen in eine Messvorschrift zur Vergleichbarkeit münden lässt. Hierbei ist das Messgitter mit seinen Messstellen an die unterschiedlichsten Luftkanalquerschnitte anpassbar.This creates an adaptive measuring device for any existing or yet to be developed heat recovery system (WRG system). A Tüv-certified, standardized measuring procedure will allow the quality and thus the efficiency of heat recovery systems to lead to a measurement requirement for comparability. In this case, the measuring grid with its measuring points can be adapted to the most varied air duct cross-sections.
Vorzugsweise wird hierzu vorgeschlagen, dass zur Größenveränderung des Messgitters (
In einer vorteilhaften Ausgestaltung sind am größenveränderlichen Rahmen der Messvorrichtung insbesondere elastische Bänder befestigt sind, die die Messstellen oder eine die Messstellen tragende Konstruktion tragen. Hierbei ist vorzugsweise die Konstruktion einer Spirale, die selber eine Messvorrichtung bildet und/oder die Messstellen trägt. Hierbei kann die Spirale einen Hitzdraht-Anemometer beispielsweise bilden oder ein Rohr sein, von einer Flüssigkeit durchflossen um über den Abkühlungsgrad die Luftgeschwindigkeit zu messen. Eine solche Ausführung hat den erheblichen Vorteil, dass die Spirale sich mit den größten Veränderungen der Gesamtmessvorrichtung sich in ihrer Form und Größe anpasst. Die Messstellen sind vorzugsweise an den Gitterstreben insbesondere an deren Kreuzungspunkten befestigt und/oder die Messstellen sind am Rahmen des Messgitters angeordnet.In an advantageous embodiment elastic bands are attached to the variable-size frame of the measuring device, which carry the measuring points or a construction bearing the measuring points. Here, preferably, the construction of a spiral, which itself forms a measuring device and / or carries the measuring points. In this case, the spiral can form a hot wire anemometer, for example, or be a tube, through which a liquid flows in order to measure the air velocity via the degree of cooling. Such a design has the considerable advantage that the spiral adapts to the largest changes in the overall measuring device in their shape and size. The measuring points are preferably fastened to the lattice struts, in particular at their crossing points, and / or the measuring points are arranged on the frame of the measuring lattice.
Um das Messgitter nur zeitweilig sicher im Luftkanal zu befestigen wird vorgeschlagen, dass am Außenrand des Messgitters insbesondere an dem das Gitter umgebenden Rahmen lösbare Befestigungselemente wie Magnete, Klettverschlussteile und/oder Rastverbindungsteile angeordnet sind.In order to fasten the measuring grid only temporarily in the air duct, it is proposed that detachable fastening elements such as magnets, hook-and-loop fasteners and / or snap-in connection parts are arranged on the outer edge of the measuring grid, in particular on the frame surrounding the grid.
Vorzugsweise wird vorgeschlagen, dass die Messstellen mit einer Elektronik verbunden sind, die an oder nahe dem Messgitter angeordnet und drahtlos mit einer Auswerteeinrichtung verbunden ist, die außerhalb des Luftkanals liegt, in dem das Messgitter befestigt ist. Hierdurch wird erreicht, dass ein Verbindungskabel nach außen nicht notwendig ist und damit die Lüftungsanlage nach Einbau der Messvorrichtung luftdicht und störungsfrei verschlossen werden kann. Es werden damit äußerst exakte Messwerte ermittelt.Preferably, it is proposed that the measuring points are connected to an electronics, which is arranged at or near the measuring grid and wirelessly connected to an evaluation device which lies outside the air duct, in which the measuring grid is fixed. This ensures that a connection cable to the outside is not necessary and thus the ventilation system can be closed airtight and trouble-free after installation of the measuring device. Extremely accurate measured values are thus determined.
Vorzugsweise wird vorgeschlagen, dass in der Auswerteeinrichtung ein Mess- und/oder Auswertprogramm abläuft, insbesondere zum Erstellen eines Messprotokolls. Durch die Messstellen werden die Temperatur, die Feuchtigkeit, die Strömungsgeschwindigkeit und/oder der Druck der Luftströmung erfasst.Preferably, it is proposed that a measurement and / or evaluation program be executed in the evaluation device, in particular for creating a measurement protocol. The measuring points detect the temperature, humidity, flow velocity and / or pressure of the air flow.
Ausführungsbeispiele der Erfindung sind in Zeichnungen schematisch dargestellt und werden im Folgenden näher beschrieben. Es zeigenEmbodiments of the invention are shown schematically in drawings and will be described in more detail below. Show it
Im ersten Ausführungsbeispiel nach den
Das Messgitter
Das an den Kanalquerschnitt anpassungsfähige Teleskop-Gitter ist somit zweidimensional ausziehbar und leicht montierbar für die Messung der Temperatur, der relativen Feuchte, des statischen Drucks und der Luftgeschwindigkeit. Der Kanalquerschnitt wird in drei Baugrößen von (40 × 40) cm bis (300 × 300) cm belegt. Die Teleskoprohre sind ineinander verschiebbar abgedichtet und mit einem Schlauchanschlussstutzen für PVC-Schlauch zur Druckmessung versehen. Die vier simultan angeordneten Bohrungen für die statische Druckmessung befinden sich außenliegende Teleskoprohrseite (∅ = 2 mm).The adaptable to the channel cross-section telescopic grating is thus two-dimensional extendable and easy to install for the measurement of temperature, relative humidity, static pressure and air velocity. The channel cross-section is covered in three sizes from (40 × 40) cm to (300 × 300) cm. The telescopic tubes are sealed from each other and equipped with a hose connection for PVC hose for pressure measurement. The four simultaneously arranged holes for the static pressure measurement are located on the outer telescopic tube side (∅ = 2 mm).
Die Befestigung des Messgitters erfolgt über Magnethalterungen auf denen Quickschellen montiert ist, in die die Teleskoprohre eingerastet werden. Stattdessen werden auch lösbare Rastverbindungen oder Klettverschlüsse verwendet.The mounting of the measuring grid is carried out by means of magnetic holders on which quick clamps are mounted, in which the telescopic tubes are engaged. Instead, releasable snap connections or hook and loop fasteners are used.
Alle benötigten Messwerte der beteiligen Luftströmen werden simultan (Echtzeit) von einer am Fuße des Messgitters befindlichen elektronischen Erfassungs-Box (elektronische Messwerterfassung) erfasst und drahtlos (WLAN oder Bluetooth) an ein Mess- und Auswertprogramm zur Berechnung der Rückwärmzahl geliefert.All required measured values of the air streams involved are recorded simultaneously (real time) from an electronic detection box located at the foot of the measuring grid (electronic measured value acquisition) and supplied wirelessly (WLAN or Bluetooth) to a measurement and evaluation program for calculating the heat recovery coefficient.
Außerhalb des Kanals und damit der Zentrallüftungsanlage ist eine Auswerteeinrichtung angeordnet, die mit der Erfassungsbox drahtlos verbunden ist und in der ein Mess- und/oder Auswertprogramm abläuft zum Erstellen eines Messprotokolls.Outside the channel and thus the central ventilation system an evaluation is arranged, which is wirelessly connected to the detection box and in which a measurement and / or evaluation program runs to create a measurement protocol.
In der Erfassungsbox oder an dieser befindet sich eine Batterie/Akku um diese mit Energie zu versorgen, so dass damit die Batterie/Akku sich innerhalb der Zentrallüftungsanlage befindet.There is a battery / rechargeable battery in the detection box or at this to supply it with energy so that the battery / rechargeable battery is located inside the central ventilation system.
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte Nicht-PatentliteraturCited non-patent literature
- DIN EN 6071 [0018] DIN EN 6071 [0018]
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE201010018494 DE102010018494A1 (en) | 2010-04-28 | 2010-04-28 | Mobile measurement device for efficiency determination of heat recovery system in plant, has grid including releasable attachment members e.g. hook and loop fastener, where measuring points are provided at frame of grid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE201010018494 DE102010018494A1 (en) | 2010-04-28 | 2010-04-28 | Mobile measurement device for efficiency determination of heat recovery system in plant, has grid including releasable attachment members e.g. hook and loop fastener, where measuring points are provided at frame of grid |
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DE102010018494A1 true DE102010018494A1 (en) | 2011-11-03 |
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DE201010018494 Withdrawn DE102010018494A1 (en) | 2010-04-28 | 2010-04-28 | Mobile measurement device for efficiency determination of heat recovery system in plant, has grid including releasable attachment members e.g. hook and loop fastener, where measuring points are provided at frame of grid |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015100213B3 (en) * | 2015-01-09 | 2016-05-25 | Helmholtz-Zentrum Dresden - Rossendorf E.V. | Arrangement for detecting the flow rate field of a fluid flow in a flow cross-section |
RU196379U1 (en) * | 2019-09-16 | 2020-02-26 | федеральное государственное бюджетное образовательное учреждение высшего образования "Национальный исследовательский университет "МЭИ" (ФГБОУ ВО "НИУ "МЭИ") | TEMPERATURE FIELD METER AND LIQUID SPEED METER IN AN ENCLOSED SPACE |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4040293A (en) * | 1975-12-22 | 1977-08-09 | Airflow Developments Limited | Fluid flow measuring device |
DE2910433A1 (en) * | 1978-03-17 | 1979-10-31 | Acutherm Inc | AIR DISTRIBUTOR |
US20060090573A1 (en) * | 2004-11-01 | 2006-05-04 | Foss John F | Thermal transient anemometer having sensing cell assembly |
DE102006019578A1 (en) * | 2006-04-27 | 2007-10-31 | Abb Patent Gmbh | Gas or air temperature measurement device for use in low-voltage switching cabinet, has several temperature sensors that are fixed to places, which are arranged in matrix-shape, in evenly distributed manner and arranged above housing |
DE102007019927B3 (en) * | 2007-04-27 | 2008-09-25 | Forschungszentrum Dresden - Rossendorf E.V. | Arrangement for two-dimensional measurement of the velocity field in flows |
-
2010
- 2010-04-28 DE DE201010018494 patent/DE102010018494A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4040293A (en) * | 1975-12-22 | 1977-08-09 | Airflow Developments Limited | Fluid flow measuring device |
DE2910433A1 (en) * | 1978-03-17 | 1979-10-31 | Acutherm Inc | AIR DISTRIBUTOR |
US20060090573A1 (en) * | 2004-11-01 | 2006-05-04 | Foss John F | Thermal transient anemometer having sensing cell assembly |
DE102006019578A1 (en) * | 2006-04-27 | 2007-10-31 | Abb Patent Gmbh | Gas or air temperature measurement device for use in low-voltage switching cabinet, has several temperature sensors that are fixed to places, which are arranged in matrix-shape, in evenly distributed manner and arranged above housing |
DE102007019927B3 (en) * | 2007-04-27 | 2008-09-25 | Forschungszentrum Dresden - Rossendorf E.V. | Arrangement for two-dimensional measurement of the velocity field in flows |
Non-Patent Citations (1)
Title |
---|
DIN EN 6071 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015100213B3 (en) * | 2015-01-09 | 2016-05-25 | Helmholtz-Zentrum Dresden - Rossendorf E.V. | Arrangement for detecting the flow rate field of a fluid flow in a flow cross-section |
RU196379U1 (en) * | 2019-09-16 | 2020-02-26 | федеральное государственное бюджетное образовательное учреждение высшего образования "Национальный исследовательский университет "МЭИ" (ФГБОУ ВО "НИУ "МЭИ") | TEMPERATURE FIELD METER AND LIQUID SPEED METER IN AN ENCLOSED SPACE |
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