CH672829A5 - - Google Patents
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- Publication number
- CH672829A5 CH672829A5 CH1422/87A CH142287A CH672829A5 CH 672829 A5 CH672829 A5 CH 672829A5 CH 1422/87 A CH1422/87 A CH 1422/87A CH 142287 A CH142287 A CH 142287A CH 672829 A5 CH672829 A5 CH 672829A5
- Authority
- CH
- Switzerland
- Prior art keywords
- steam
- condensate
- condensate collector
- leakage
- leaks
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16T—STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
- F16T1/00—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
- F16T1/38—Component parts; Accessories
- F16T1/48—Monitoring arrangements for inspecting, e.g. flow of steam and steam condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16T—STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
- F16T1/00—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
- F16T1/02—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled thermally
- F16T1/08—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled thermally by bimetallic strips or plates
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
- G01M3/18—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/186—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators
- G01M3/188—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators for radiators
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C3/00—Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Examining Or Testing Airtightness (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Sampling And Sample Adjustment (AREA)
Description
BESCHREIBUNG DESCRIPTION
Die Erfindung betrifft eine Vorrichtung zum Beurteilen der Betriebsweise von Kondensatsammlern. Es lassen sich damit Kondensatsammler überwachen, d. h. insbesondere Dampfleckagen feststellen und/oder messen. The invention relates to a device for assessing the operation of condensate collectors. It can be used to monitor condensate collectors. H. in particular, determine and / or measure steam leaks.
Derartige Kondensatsammler werden in Dampfleitungen oder Dampf verwendenden Anlagen eingesetzt und erlauben das automatische Entfernen von gesammeltem Wasser ohne Dampfverluste. Die steigenden Heizkosten haben bewirkt, dass zum gegenwärtigen Zeitpunkt hinsichtlich der Ermittlung von Dampfleckagen zunehmend stärkere Anforderungen erfüllt werden müssen. Die Vermeidung von Dampfleckagen ist folglich eine Vorbedingung für den Einbau eines Kondensatsammlers. Dampfleitungen werden daher streng überwacht; ein undichter, Dampf verlierender Kondensatsammler wird unverzüglich entweder repariert oder ersetzt. Such condensate collectors are used in steam lines or systems using steam and allow the automatic removal of collected water without loss of steam. The rising heating costs have meant that increasingly stringent requirements have to be met with regard to the determination of steam leakages. Avoiding steam leakage is therefore a prerequisite for installing a condensate collector. Steam lines are therefore closely monitored; a leaky, steam-losing condensate collector will either be repaired or replaced immediately.
In der Praxis sind verschiedene Massnahmen bekannt, um Leckagen eines Kondensatsammlers festzustellen. Beispielsweise ist es bekannt, ein Sichtfenster ausgangsseitig eines Kondensatsammlers in einer Dampfleitung anzuordnen und damit eine visuelle Kontrolle des im Leitungsinneren strömenden Mediums zu ermöglichen. Ausserdem ist es bekannt, Thermometer und Schwingungsmessgeräte einzusetzen, mit denen sich die Oberflächentemperatur eines Kondensatsammlers und das von dem durch die Rohrleitung strömenden Medium bewirkte Geräusch messen und auswerten lassen. In practice, various measures are known to determine leaks in a condensate collector. For example, it is known to arrange a viewing window on the outlet side of a condensate collector in a steam line and thus to enable a visual control of the medium flowing in the line interior. It is also known to use thermometers and vibration measuring devices with which the surface temperature of a condensate collector and the noise caused by the medium flowing through the pipeline can be measured and evaluated.
In beiden Fällen lässt sich die Undichtheit eines Kondensatsammlers jedoch lediglich qualitativ ermitteln, während eine mengenmässige Messung der Leckage nicht möglich ist. Die Beurteilung des genauen Ausmasses von Leckagen hängt von der Erfahrung der Betriebsperson ab. In both cases, however, the leakage of a condensate collector can only be determined qualitatively, while a quantitative measurement of the leakage is not possible. The assessment of the exact extent of leaks depends on the experience of the operator.
Bei einem aus der japanischen Patentanmeldung Nr. 61-57 499 bekannten Detektor lassen sich Dampfleckagen bestimmen, indem Schwingungen und gemessene Dampfleckagen zueinander in Beziehung gesetzt werden; als Parameter für die Schwingungen dient der Dampfdruck, und die Dampfleckagen werden mittels eines Detektors ermittelt, der einen Temperatur- und einen Schwingungs-Messfühler aufweist und aussen am Gehäuse des Kondensatsammlers angelegt wird. In a detector known from Japanese Patent Application No. 61-57 499, steam leakages can be determined by relating vibrations and measured steam leakages to one another; The steam pressure serves as a parameter for the vibrations, and the steam leaks are determined by means of a detector which has a temperature and a vibration sensor and is applied externally to the housing of the condensate collector.
Eine durch die japanische Patentanmeldung Nr. 61-56 521 bekanntgewordene Vorrichtung wird zwischen dem Ende der Dampfzuführung und einem Kondensatsammler angeordnet; zum Bestimmen der Dampfleckagen wird hierbei eine durch eine Öffnung strömende Dampfmenge in Beziehung zu einem eingangsseitigen Wasserstand gesetzt. A device known from Japanese Patent Application No. 61-56,521 is placed between the end of the steam supply and a condensate collector; To determine the steam leakage, a quantity of steam flowing through an opening is related to an upstream water level.
Zwar eignet sich diese bekannte Vorrichtung zur Beurteilung des Betriebs eines jeden Kondensatsammlers und zum Messen von Dampfleckagen, jedoch sind aufwendige manuelle Tätigkeiten erforderlich, um die Ergebnisse der Betriebs-5 beurteilung und der Leckagenmessung auszuwerten, sowie die Summierung, die Zusammenfassung und die Auswertung der Leckagen in Form von Kosten- oder Ausschussratenterme vorzubereiten. Ausserdem lassen sich die Reparatur oder der Austausch eines undichten Kondensatsammlers erst io im Anschluss an die Auswertungen vornehmen, was folglich keine optimale Wartung der Kondensatsammler erlaubt. Although this known device is suitable for assessing the operation of each condensate collector and for measuring steam leaks, complex manual tasks are required in order to evaluate the results of the operation assessment and the leakage measurement, as well as the summation, the summary and the evaluation of the leaks prepare in the form of cost or committee council dates. In addition, the repair or replacement of a leaky condensate collector can only be carried out after the evaluations, which consequently does not allow optimal maintenance of the condensate collector.
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art zu schaffen, die eine automatische Zusammenfassung und Auswertung der gesam-ls melten Daten ermöglicht und erforderliche Reparaturen oder einen Austausch vorhersagen kann. The invention has for its object to provide a device of the type mentioned, which enables an automatic summary and evaluation of the entire data collected and can predict necessary repairs or an exchange.
Diese Aufgabe wird erfindungsgemäss durch einen die Arbeitsweise überwachenden sowie Dampfleckagen eines jeden Kondensatsammlers messenden und speichernden 20 Dampfleckagen-Detektor und einen mit den gespeicherten Daten gespeisten, übergeordneten Rechner gelöst, der die Summe der Dampfleckagen aller Kondensatsammler, die Zusammenfassung und Auswertung der Leckagen in Form von Kosten- und/oder Ausschussratenterme aufzeichnet und 25 anzeigt sowie den Zeitpunkt des Austauschs eines Kondensatsammlers vorherbestimmt. Die Beurteilung der Betriebsweise eines jeden Kondensatsammlers und das Messen von Dampfleckagen übernimmt hierbei der Dampfleckagen-Detektor. Das Ergebnis der Betriebs-Beurteilung und der 30 Dampfleckagenmessung wird zunächst in einem Speicher des Dampfleckagen-Detektors gespeichert; nach der Prüfung aller Kondensatsammler werden sämtliche gespeicherten Daten dem übergeordneten, d. h. mit weiteren Rechnern verbundenen Rechner übermittelt. According to the invention, this object is achieved by a steam leakage detector which monitors and stores the steam leakage of each condensate collector and a superordinate computer fed with the stored data, which calculates the sum of the steam leakages of all condensate collectors, the summary and evaluation of the leaks in the form of Records cost and / or committee rate dates and displays 25, and predetermines when to replace a condensate collector. The steam leak detector detects the operation of each condensate collector and measures the steam leakage. The result of the operational assessment and the steam leakage measurement is first stored in a memory of the steam leakage detector; After checking all condensate collectors, all stored data is sent to the higher-level, i.e. H. connected to other computers.
35 Der übergeordnete Rechner zeichnet die Daten auf und zeigt das Ergebnis der Betriebsbeurteilung und Leckagen jeden Kondensatsammlers, die erforderliche Zusammenfassung und Auswertung der Gesamtleckage aller Kondensatsammler und die Leckage in Form von Kosten- und Aus-40 schussratenterme an und bestimmt den Zeitpunkt des Austauschs für jeden Kondensatsammler vorher. 35 The higher-level computer records the data and shows the result of the operational assessment and leaks of each condensate collector, the required summary and evaluation of the total leakage of all condensate collectors and the leakage in the form of cost and reject rate terms and determines the time of the exchange for everyone Condensate collector beforehand.
Auf diese Weise lässt sich das Ausdrucken, Zusammenfassen und Auswerten der Ergebnisse der Prüfungen automatisch und präzise vornehmen und dementsprechend die Kon-45 trolle bzw. Wartung der Kondensatsammler viel einfacher und effektiver durchführen. Da ausserdem Veränderungen der Leckagemenge registriert und angezeigt werden, lässt sich gleichzeitig der Zeitpunkt zur Reparatur oder zum Austausch automatisch feststellen, indem dieser Zeitpunkt, so abhängig von der Leckagemenge, vorherbestimmt wird. In this way, printing, summarizing and evaluating the results of the tests can be carried out automatically and precisely and, accordingly, the control or maintenance of the condensate collector can be carried out much more simply and effectively. Since changes in the amount of leakage are also registered and displayed, the time for repair or replacement can be determined automatically at the same time by predetermining this time, depending on the amount of leakage.
Manuelle Rechnereingaben lassen sich vorteilhaft mittels eines Strichcode-Lesegerätes vermeiden, das die Nummer und den Typ des jeweiligen Kondensatsammlers anhand eines auf jedem Kondensatsammler gedruckten Strichcodes 55 feststellt. Manual computer inputs can advantageously be avoided by means of a barcode reader which determines the number and type of the respective condensate collector using a barcode 55 printed on each condensate collector.
Da das Ergebnis der Überprüfungen von dem übergeordneten Rechner automatisch registriert, zusammengefasst und ausgedruckt wird, sind durch die Erfindung insbesondere manuelle Tätigkeiten entbehrlich, was zur Arbeitsersparnis 60 und Standardisierung beiträgt. Since the result of the checks is automatically registered, summarized and printed out by the higher-level computer, the invention in particular makes manual tasks unnecessary, which contributes to labor savings 60 and standardization.
Da ausserdem die während des Betriebs eines Kondensatsammlers auftretenden Änderungen der Dampfleckagen registriert und ausgedruckt werden, lassen sich schadhafte Teile frühzeitig feststellen und rechtzeitig reparieren oder 65 austauschen, was Produktionskostenverluste verhindert und zur Energieeinsparung beiträgt. In addition, since the changes in steam leakage that occur during the operation of a condensate collector are recorded and printed out, defective parts can be identified at an early stage and repaired or exchanged in good time, which prevents loss of production costs and contributes to energy savings.
Die Erfindung wird nachfolgend anhand einer im Rahmen der Erfindung bevorzugten, in der einzigen Figur schema- The invention is described below on the basis of a preferred, within the scope of the invention, schematic in the single figure
tisch dargestellten Vorrichtung zum Beurteilen des Betriebs von Kondensatsammlern näher erläutert. Die Vorrichtung besteht aus einem Dampfleckagen-Detektor 1, einem arithmetischen Sichtanzeigegerät 2 und einem übergeordneten Rechner 3. An einem Ende des Detektors 1 ist ein den Kondensatsammler-Betrieb erfassender bzw. überwachender Messfühler 10 und am anderen Ende ist ein Strichcode-Lesegerät 11 angeordnet. Table shown device for assessing the operation of condensate collectors explained in more detail. The device consists of a steam leakage detector 1, an arithmetic display device 2 and a superordinate computer 3. At one end of the detector 1 there is a sensor 10 which detects or monitors the condensate collector operation and at the other end a barcode reader 11 is arranged.
Das Strichcode-Lesegerät 11 liest Nummer und Typ des Kondensatsammlers und speist diese Daten in einen Mikrorechner 6 des Sichtanzeigegerätes 2. Ein von dem Messfühler 10 ausgehendes Signal wird über ein elektrisches Kabel 12 zum Sichtanzeigegerät 2 weitergeleitet, mittels eines Messverstärkers 4 verstärkt, in einem Analog-/Digital-Umsetzer 5 digital umgewandelt und anschliessend in den Mikrorechner 6 eingegeben. The barcode reader 11 reads the number and type of the condensate collector and feeds this data into a microcomputer 6 of the display device 2. A signal emanating from the sensor 10 is forwarded via an electrical cable 12 to the display device 2, amplified by means of a measurement amplifier 4, in an analog manner - / Digital converter 5 digitally converted and then entered into the microcomputer 6.
3 672829 3 672829
Der Mikrorechner 6 berechnet die Leckagen anhand von Undichtheiten, zeigt diese Daten auf einem Sichtanzeigeteil 7 an und speichert gleichzeitig in einem Speicher 8 die für die Beurteilung wichtigen Daten, wie Nummer, Typ, Betriebs-s weise und Leckagemenge eines jeden Kondensatsammlers. Nach der Überprüfung sämtlicher Kondensatsammler werden die im Speicher 8 gespeicherten Daten mittels eines Datenumwandlers 9 durch ein elektrisches Kabel 13 in den übergeordneten Rechner 3 gespeist. The microcomputer 6 calculates the leaks on the basis of leaks, displays this data on a display part 7 and at the same time stores in a memory 8 the data important for the assessment, such as number, type, mode of operation and amount of leakage from each condensate collector. After checking all the condensate collectors, the data stored in the memory 8 are fed into the superordinate computer 3 by means of a data converter 9 and an electrical cable 13.
io Der übergeordnete Rechner 3 registriert und zeigt das Ergebnis der Beurteilung der Betriebsweise sowie die Lek-kage eines jeden Kondensatsammlers, die Zusammenfassung und Auswertung der Gesamtleckagemenge aller Kondensatsammler, Kosten- oder Ausschussratenterme und den Zeit-15 punkt an, zu dem ein Kondensatsammler ausgetauscht werden muss. io The higher-level computer 3 registers and displays the result of the assessment of the operating mode and the leakage of each condensate collector, the summary and evaluation of the total leakage quantity of all condensate collectors, cost or committee rate terms and the point in time at which a condensate collector is replaced got to.
B B
1 Blatt Zeichnungen 1 sheet of drawings
Claims (2)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61087432A JPH0614381B2 (en) | 1986-04-15 | 1986-04-15 | Automatic data analyzer for steam leak data from multiple steam traps |
JP6380486U JP2522492Y2 (en) | 1986-04-25 | 1986-04-25 | Steam trap operation determination device |
Publications (1)
Publication Number | Publication Date |
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CH672829A5 true CH672829A5 (en) | 1989-12-29 |
Family
ID=26404927
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1422/87A CH672829A5 (en) | 1986-04-15 | 1987-04-13 |
Country Status (25)
Country | Link |
---|---|
KR (1) | KR900003201B1 (en) |
CN (1) | CN1040467C (en) |
AR (1) | AR247620A1 (en) |
AT (1) | AT400069B (en) |
AU (1) | AU586542B2 (en) |
BE (1) | BE1001150A3 (en) |
BR (1) | BR8701793A (en) |
CA (1) | CA1290059C (en) |
CH (1) | CH672829A5 (en) |
DE (2) | DE3712406A1 (en) |
DK (1) | DK166926B1 (en) |
ES (1) | ES2005149A6 (en) |
FI (1) | FI86765C (en) |
FR (1) | FR2597189B1 (en) |
GB (1) | GB2189321B (en) |
GR (1) | GR870536B (en) |
IN (1) | IN165693B (en) |
IT (1) | IT1208631B (en) |
LU (1) | LU86841A1 (en) |
MX (1) | MX168788B (en) |
NL (1) | NL189098C (en) |
NO (1) | NO166595C (en) |
NZ (1) | NZ219453A (en) |
PT (1) | PT84631B (en) |
SE (1) | SE505414C2 (en) |
Families Citing this family (20)
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JPS62212542A (en) * | 1986-03-14 | 1987-09-18 | Tlv Co Ltd | Apparatus for measuring leak quantity of steam |
US4898022A (en) * | 1987-02-09 | 1990-02-06 | Tlv Co., Ltd. | Steam trap operation detector |
GR1000336B (en) * | 1987-09-14 | 1992-06-25 | Tlv Co Ltd | Steam trap operation detector |
DE4302367A1 (en) * | 1993-01-28 | 1994-08-04 | Rwe Energie Ag | System for the indirect determination of critical conditions of condition-dependent gases, substances, plant parts etc. |
ES2127122B1 (en) | 1996-09-02 | 1999-12-16 | Blaquez Navarro Vicente | AUTONOMOUS ELECTRONIC IMPROVED MONITORING SYSTEM FOR PURGERS, VALVES AND INSTALLATIONS IN REAL TIME. |
ES2133240B1 (en) * | 1997-10-03 | 2000-03-16 | Blazquez Navarro Vicente | AUTONOMOUS GLOBAL SYSTEM PERFECTED FOR REMOTE SURVEILLANCE OF BLEEDERS, VALVES AND REAL-TIME FACILITIES. |
JP3390806B2 (en) * | 1999-12-28 | 2003-03-31 | 株式会社テイエルブイ | Position recognition device, measurement device provided with this position recognition device, and measurement system |
JP3443618B2 (en) * | 2000-11-01 | 2003-09-08 | 株式会社テイエルブイ | Operation method of steam trap sales and maintenance system, and steam trap sales and maintenance totaling system |
WO2006063196A2 (en) * | 2004-12-08 | 2006-06-15 | Armstrong International, Inc. | Method and system for analyzing steam trap data |
US7246036B2 (en) | 2004-12-08 | 2007-07-17 | Armstrong International, Inc. | Remote monitor for steam traps |
CA2616456C (en) | 2005-07-25 | 2015-05-26 | Tlv Co., Ltd. | Device management method, analysis system used for the device management method, data structure used in management database and maintenance inspection support apparatus used for the device management method |
CN101228559B (en) * | 2005-07-25 | 2012-06-20 | Tlv有限公司 | Device management method, analysis system used for the device management method, data structure used in management database, and maintenance inspection support device used for the device management me |
GB2457924B (en) * | 2008-02-28 | 2012-04-25 | Spirax Sarco Ltd | Developments in or relating to steam trap monitoring |
GB2497997A (en) * | 2011-12-30 | 2013-07-03 | Spirax Sarco Ltd | Monitoring a steam plant |
GB2497995B (en) * | 2011-12-30 | 2014-04-30 | Spirax Sarco Ltd | An apparatus and method for monitoring a steam plant |
US9157829B2 (en) | 2011-12-30 | 2015-10-13 | Spirax-Sarco Limited | Apparatus and method for monitoring a steam plant |
GB2497994B (en) * | 2011-12-30 | 2013-11-20 | Spirax Sarco Ltd | A method for monitoring a steam plant |
US10641412B2 (en) | 2012-09-28 | 2020-05-05 | Rosemount Inc. | Steam trap monitor with diagnostics |
EP3282167B1 (en) * | 2015-04-07 | 2019-06-12 | TLV Co., Ltd. | Threshold value calculation system, and threshold value calculation method |
CN111307441B (en) * | 2020-03-25 | 2024-08-27 | 广西玉柴机器股份有限公司 | Tool and method for detecting fan protection ring mounting bracket |
Family Cites Families (11)
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DE2658818A1 (en) * | 1976-12-24 | 1978-07-06 | Bea Baugesellschaft Fuer Elekt | Diagnostic computer for drive units - has A-D converter feeding data to store and operating panel pre-programming all modes of operation |
US4202490A (en) * | 1977-01-03 | 1980-05-13 | Hughes Tool Company | Drill pipe identification method and system |
FR2395458A1 (en) * | 1977-06-21 | 1979-01-19 | Parisienne Chauffage Urbain | Condensate collection system for district heating installation - has electronic circuit receiving signals from temp. sensors to check correct functioning |
US4184205A (en) * | 1977-11-25 | 1980-01-15 | Ird Mechanalysis, Inc. | Data acquisition system |
US4249697A (en) * | 1979-06-25 | 1981-02-10 | Savage Harlow D Jr | Steam trap monitor |
DE3030296A1 (en) * | 1980-08-09 | 1982-03-18 | Reinhold Ing.(grad.) 6990 Bad Mergentheim Barlian | DEVICE FOR DETECTING STEAM LEAKAGE |
JPS58168934A (en) * | 1982-03-31 | 1983-10-05 | Hitachi Ltd | Method and device for detecting leakage of liquid |
AT387464B (en) * | 1982-10-29 | 1989-01-25 | Voest Alpine Ag | ARRANGEMENT FOR MONITORING THE LEVEL OF DAMAGE DUE TO MATERIAL EXHAUST IN CONSTRUCTIONS, VEHICLES, MACHINES AND THE LIKE |
JPS62212542A (en) * | 1986-03-14 | 1987-09-18 | Tlv Co Ltd | Apparatus for measuring leak quantity of steam |
JPH06157499A (en) * | 1992-11-16 | 1994-06-03 | Kumiai Chem Ind Co Ltd | N-@(3754/24)1-substituted ethyl)-2,2-dichlorocyclopropane carboxamide derivative and germicide for agriculture and horticulture |
JPH06156521A (en) * | 1992-11-27 | 1994-06-03 | Hitachi Ltd | Repeatedly usable box for transportation of large sized product |
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1987
- 1987-02-21 CN CN87100824A patent/CN1040467C/en not_active Expired - Lifetime
- 1987-03-02 NZ NZ219453A patent/NZ219453A/en unknown
- 1987-03-02 IN IN155/CAL/87A patent/IN165693B/en unknown
- 1987-03-10 CA CA000531642A patent/CA1290059C/en not_active Expired - Lifetime
- 1987-03-12 AU AU69968/87A patent/AU586542B2/en not_active Expired
- 1987-03-26 NL NLAANVRAGE8700708,A patent/NL189098C/en not_active IP Right Cessation
- 1987-03-31 FI FI871398A patent/FI86765C/en not_active IP Right Cessation
- 1987-04-02 DK DK167587A patent/DK166926B1/en not_active IP Right Cessation
- 1987-04-03 NO NO871388A patent/NO166595C/en unknown
- 1987-04-03 GR GR870536A patent/GR870536B/en unknown
- 1987-04-07 PT PT84631A patent/PT84631B/en unknown
- 1987-04-08 GB GB8708403A patent/GB2189321B/en not_active Expired - Lifetime
- 1987-04-10 SE SE8701510A patent/SE505414C2/en not_active IP Right Cessation
- 1987-04-11 DE DE19873712406 patent/DE3712406A1/en active Granted
- 1987-04-11 DE DE8705444U patent/DE8705444U1/en not_active Expired
- 1987-04-13 AR AR87307277A patent/AR247620A1/en active
- 1987-04-13 BE BE8700391A patent/BE1001150A3/en not_active IP Right Cessation
- 1987-04-13 CH CH1422/87A patent/CH672829A5/de not_active IP Right Cessation
- 1987-04-13 MX MX006007A patent/MX168788B/en unknown
- 1987-04-13 ES ES8701060A patent/ES2005149A6/en not_active Expired
- 1987-04-13 LU LU86841A patent/LU86841A1/en unknown
- 1987-04-14 IT IT8720104A patent/IT1208631B/en active
- 1987-04-14 FR FR878705305A patent/FR2597189B1/en not_active Expired - Lifetime
- 1987-04-14 BR BR8701793A patent/BR8701793A/en not_active IP Right Cessation
- 1987-04-14 KR KR1019870003555A patent/KR900003201B1/en not_active IP Right Cessation
- 1987-04-15 AT AT0095287A patent/AT400069B/en not_active IP Right Cessation
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