DE3032754A1 - Temp. sensor with large heat exchanger surface - has block-shaped base with surface of high thermal conductivity and element stuck in hole - Google Patents

Temp. sensor with large heat exchanger surface - has block-shaped base with surface of high thermal conductivity and element stuck in hole

Info

Publication number
DE3032754A1
DE3032754A1 DE19803032754 DE3032754A DE3032754A1 DE 3032754 A1 DE3032754 A1 DE 3032754A1 DE 19803032754 DE19803032754 DE 19803032754 DE 3032754 A DE3032754 A DE 3032754A DE 3032754 A1 DE3032754 A1 DE 3032754A1
Authority
DE
Germany
Prior art keywords
temperature
block
temperature sensor
thermal conductivity
hole
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.)
Withdrawn
Application number
DE19803032754
Other languages
German (de)
Inventor
Hans-Jürgen 2000 Hamburg Rabe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RABE HANS JUERGEN
Original Assignee
RABE HANS JUERGEN
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by RABE HANS JUERGEN filed Critical RABE HANS JUERGEN
Priority to DE19803032754 priority Critical patent/DE3032754A1/en
Publication of DE3032754A1 publication Critical patent/DE3032754A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/16—Special arrangements for conducting heat from the object to the sensitive element
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
    • G01K1/143—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations for measuring surface temperatures

Abstract

The temperature sensor is arranged with a large heat transfer surface of the conducting cable (1) and the support base. It obviates the need for any welding processes. It is used to measure temperature differences when computing the amount of heat consumed in a system. The support base is in the form of a block with four surfaces made from a material with a good thermal conductivity. The temperature measuring element (3) is inserted in a hole in the block (2) and stuck with a temperature resistant adhesive containing copper. The adhesive is in the form of a paste.

Description

Temperaturanleefühler für Temperature sensor for

die Wärmezählung Die vorliegende Erfindung betrifft Temperaturanlegefühler gemäß dem Oberbegriff des Anspruches 1. the heat metering The present invention relates to temperature application sensors according to the preamble of claim 1.

Temperaturanlegefühler lassen sich für Temperaturdifferenzmessungen bei der Zählung von Wärmemengen , wie sie auch im geschäftlichten Verkehr eingesetzt werden , besonders wirtschaftlich verwenden.Temperature sensors can be used for temperature difference measurements in the counting of heat quantities, as used in business traffic can be used particularly economically.

Die Temperaturanlegefühler werden von außen auf die Transportleitung (1) des Wärmeträgers montiert. Dabei werden keine der sonst üblichen Schweißarbeiten erforderlich , es ist bei der Montage keine Unterbrechung des Wärmeträgerdurchflusses notwendig. Anlegefühler liefern der Mediumtemperatur proportionale Meßwerte.The temperature sensors are attached to the transport line from the outside (1) of the heat transfer medium installed. This does not involve any of the usual welding work required, there is no interruption of the heat transfer medium flow during assembly necessary. Strap-on sensors provide measured values proportional to the medium temperature.

Die bisher bekannten und verwendeten Temperaturanlegefühler haben den wesentlichen Nachteil , daß sie sowohl im Neuzustand , das ist der Augenblick der Montage , als auch langfristig über die Dauer ihres Einsatzes die Temperatur des Wärmeträgers nicht richtig wiedergeben. In der Regel ist mit einer zu großen negativen Anzeige der wahren Temperatur zu rechnen , die zu einer Überschreitung der Eichfehlergrenzen ftthrt. Ein weiterer Nachteil liegt in der sehr großen thermischen Trägheit der bekannten Temperaturanlegefühler. Deshalb sind auch bisher von der Physikalisch Technischen Bundesanstalt für Temperaturanlegefühler keine Bauartzulassung ausgesprochen worden.The previously known and used temperature contact sensors have the main disadvantage that they are both in new condition, that is the moment the assembly, as well as the temperature over the long term over the duration of their use of the heat transfer medium cannot be reproduced correctly. Usually one is too big negative display of the true temperature to be expected, leading to an excess which leads to calibration error limits. Another disadvantage lies in the very large thermal Inertia of the known temperature contact sensors. Therefore, so far from the Physikalisch-Technische Bundesanstalt für temperature contact sensors no type approval been pronounced.

Erfindungsgemäß wird die aus den Nachteilen gestellte Meßaufgabe durch den im Anspruch 1 gekennzeichneten Temperaturanlegefühler gelöst (Fig. 1 ).According to the invention, the measurement task posed by the disadvantages is carried out solved the temperature sensor characterized in claim 1 (Fig. 1).

Es wird einmal der Wärmeübergang zwischen der Wärmeträgerflüssigkeit und dem Temperaturmeßelement (3) durch großflächige Anpassung und Wahl gut wärmeleitender Materialien verbessert und zum anderen wird Wärmestrahlung durch eine den Temperaturanlegefühler und damit das Temperaturmeßelement (3) umgebende Wärmeisolation vermieden.There is once the heat transfer between the heat transfer fluid and the temperature measuring element (3) by large-area adaptation and choice of good heat-conducting Materials are improved and, on the other hand, thermal radiation is generated by the temperature sensor and thus avoiding thermal insulation surrounding the temperature measuring element (3).

Hiermit wird erreicht , daß das temperaturproportionale Meßsignal des Temperaturmeßelements (3) der wahren Temperatur des Wärmeträgers exakter und schneller folgt. Durch das Einhalten der gesetzlichen Eichfehlgrenzen liegt einer Verwendung im geschäftlichem Verkehr im Zusammenhang mit Wärmezählern nichts mehr im Wege.This ensures that the temperature-proportional measurement signal of the temperature measuring element (3) of the true temperature of the heat carrier more precisely and faster follows. By complying with the legal calibration error limits, one lies No longer used in business transactions in connection with heat meters in the way.

Ein Ausführungsbeispiel der beschriebenen Erfindung ist in der Figur 1 dargestellt und wird im folgenden naher erklärt.An embodiment of the invention described is shown in the figure 1 and is explained in more detail below.

Der aus einem gut wärmeleitenden Material ( z.B. Kupfer)bestehende Aufnahmeklotz (2) ist mit einer Bohrunq zur Aufnahme des Temperaturmeßelements (3) (z.B. Pt 100 Widerstandstemperaturmeßelement nach DiN 43760) versehen. Zum Zwecke des besseren Wärmeubergangs ist das Tempersturmeßelement (3) mit einem kupferhaltigen Kleber in die AufnaHmebohrung eingeklebt. Die parallel zur Mittellinie verlaufenden vier Flächen sind mit Radien der am häufigsten vorkommenden oder auch andere Rohrdurchmesser versehen (5). Eine mit temperaturbeständiger Isolation versehene elektrische Leitung (6)ist in einem Zugentlastungsteil (7)gehaltert und stellt den elektrischen Anschluß zum.Wärmezähler her.The one made of a material that conducts heat well (e.g. copper) The mounting block (2) has a hole to accommodate the temperature measuring element (3) (e.g. Pt 100 resistance temperature measuring element according to DIN 43760). For the purpose the temperature tower measuring element (3) is with a copper-containing one for better heat transfer Glue stuck into the mounting hole. The ones running parallel to the center line four surfaces with radii are the most common pipe diameters or other pipe diameters provided (5). An electrical line provided with temperature-resistant insulation (6) is held in a strain relief part (7) and provides the electrical connection for the heat meter.

Mit einer aus rostfreiem Material hergestellten Rohrschelle (8) wird der Aufnahmeklotz (2) auf die Transportleitung (1) geklemmt.With a pipe clamp (8) made of stainless material the mounting block (2) clamped onto the transport line (1).

Die Berührungsflächen sind vorher rostfrei und auch farbfrei gemachtworden und mit einer kupferhaltigen und temperaturbeständigen Paste versehen. The contact surfaces have previously been made rust-free and also color-free and provided with a copper-containing and temperature-resistant paste.

Eine aus wärmeleitendem Material (z.B. Steinwolle) bestehende Isolierung (4) wird um den Temperaturanlegefühler und die Transportleitung gelegt und dann plombiert.An insulation made of thermally conductive material (e.g. rock wool) (4) is placed around the temperature sensor and the transport line and then sealed.

Claims (4)

Patentansprüche 1 Temperaturanlegefühler mit großflächiger Anpassung der Wärmeübergangsflächen der Transportleitung (1) und der des Aufnahmeklotzes (2) dadurch gekennzeichnet , daß die vier Flächen des aus gut wärmeleitendem Material bestehenden Aufnahmeklotzes (2) mit den Radien beliebig wählbarer Heizmediumtransnortleitungen versehen sind.Claims 1 temperature sensor with large area adaptation the heat transfer surfaces of the transport line (1) and that of the mounting block (2) characterized in that the four surfaces of the material with good thermal conductivity existing mounting block (2) with the radii of freely selectable heating medium transport lines are provided. 2. Temperaturanlegefühler nach Anspruch 1 dadurch gekennzeichnet , daß das Temperaturmeßelement (3) in der Bohrung des Aufnahmeklotzes (2) mit einem kupferhaltigen , temperaturbeständigen Kleber verklebt ist.2. Temperature sensor according to claim 1, characterized in that that the temperature measuring element (3) in the bore of the receiving block (2) with a copper-containing, temperature-resistant adhesive is glued. 3. Temperaturanlegefühler nach Anspruch 1 dadurch gekennzeichnet , daß die zur gegenseitigen Berührung vorgesehene Flächen der Wärmeträgertransportleitung (1) und des Aufnahmeklotzes (2) vor der Montage mit einer kupferhaltigen , temperaturbestndigen Paste versehen werden.3. Temperature sensor according to claim 1, characterized in that that the surfaces of the heat carrier transport line provided for mutual contact (1) and the mounting block (2) with a copper-containing, temperature-resistant Paste can be provided. 4. Temperaturanlegefühler nach Anspruch 1 dadurch gekennzeichnet daß der Temperaturanlegefühler mit einer wärmedämmenden Isolation (4) umgeben wird.4. temperature sensor according to claim 1, characterized in that the temperature sensor is surrounded by a heat-insulating insulation (4).
DE19803032754 1980-08-30 1980-08-30 Temp. sensor with large heat exchanger surface - has block-shaped base with surface of high thermal conductivity and element stuck in hole Withdrawn DE3032754A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19803032754 DE3032754A1 (en) 1980-08-30 1980-08-30 Temp. sensor with large heat exchanger surface - has block-shaped base with surface of high thermal conductivity and element stuck in hole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803032754 DE3032754A1 (en) 1980-08-30 1980-08-30 Temp. sensor with large heat exchanger surface - has block-shaped base with surface of high thermal conductivity and element stuck in hole

Publications (1)

Publication Number Publication Date
DE3032754A1 true DE3032754A1 (en) 1982-04-08

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ID=6110770

Family Applications (1)

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DE19803032754 Withdrawn DE3032754A1 (en) 1980-08-30 1980-08-30 Temp. sensor with large heat exchanger surface - has block-shaped base with surface of high thermal conductivity and element stuck in hole

Country Status (1)

Country Link
DE (1) DE3032754A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0604275A1 (en) * 1992-12-21 1994-06-29 Total Raffinage Distribution S.A. Procedure and device for the protection of measuring instruments in a hot, corrosure atmosphere
DE4427181A1 (en) * 1994-08-01 1996-02-08 Siemens Ag Thermoelement measuring head holding device
FR2737008A1 (en) * 1995-07-18 1997-01-24 Dieterlen Dominique Surface temperature probe for fluid container - has body with flat surface presenting hole which houses temperature sensor connected to signal collecting conductors while hole is filled with protecting resin
DE20207798U1 (en) * 2002-05-17 2003-10-02 Rall Titus Surface sensor for low temperature surface heating
DE10327493A1 (en) * 2003-06-17 2005-01-20 Böhm GmbH & Co. KG Electronic temperature limiter temperature measurement point for explosion sensitive atmospheres is clamped to heating cable with thermal coupling and insulation
DE102005011978A1 (en) * 2005-03-14 2006-09-21 Endress & Hauser Wetzer Gmbh + Co. Kg Device for determining and / or monitoring the temperature

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0604275A1 (en) * 1992-12-21 1994-06-29 Total Raffinage Distribution S.A. Procedure and device for the protection of measuring instruments in a hot, corrosure atmosphere
DE4427181A1 (en) * 1994-08-01 1996-02-08 Siemens Ag Thermoelement measuring head holding device
DE4427181C2 (en) * 1994-08-01 2001-03-22 Siemens Ag Device for holding the measuring tip of a thermocouple on a component
FR2737008A1 (en) * 1995-07-18 1997-01-24 Dieterlen Dominique Surface temperature probe for fluid container - has body with flat surface presenting hole which houses temperature sensor connected to signal collecting conductors while hole is filled with protecting resin
DE20207798U1 (en) * 2002-05-17 2003-10-02 Rall Titus Surface sensor for low temperature surface heating
DE10327493A1 (en) * 2003-06-17 2005-01-20 Böhm GmbH & Co. KG Electronic temperature limiter temperature measurement point for explosion sensitive atmospheres is clamped to heating cable with thermal coupling and insulation
DE10327493B4 (en) * 2003-06-17 2007-12-20 Böhm GmbH & Co. KG Temperature measuring device
DE102005011978A1 (en) * 2005-03-14 2006-09-21 Endress & Hauser Wetzer Gmbh + Co. Kg Device for determining and / or monitoring the temperature

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