DE19933761A1 - Secondary circuit thermal engine unit for machine or vehicle drive has expansion and compression machines mechanically connected but thermally separated - Google Patents

Secondary circuit thermal engine unit for machine or vehicle drive has expansion and compression machines mechanically connected but thermally separated

Info

Publication number
DE19933761A1
DE19933761A1 DE1999133761 DE19933761A DE19933761A1 DE 19933761 A1 DE19933761 A1 DE 19933761A1 DE 1999133761 DE1999133761 DE 1999133761 DE 19933761 A DE19933761 A DE 19933761A DE 19933761 A1 DE19933761 A1 DE 19933761A1
Authority
DE
Germany
Prior art keywords
expansion
machine
secondary circuit
engine unit
mechanically connected
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Withdrawn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
DE1999133761
Other languages
German (de)
Inventor
Robert Beckers
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE1999133761 priority Critical patent/DE19933761A1/en
Publication of DE19933761A1 publication Critical patent/DE19933761A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

The engine unit consists of expansion machine and compression machine, which are mechanically coupled but are thermally separate. It also has a heat recovery device, a steam condenser, an expansion valve, evaporation heat exchangers, and a liquid working medium with low boiling point.

Description

Wärmekraftmaschinen sind als atmosphärisch arbeitende Maschinen in erster Linie (neben einigen Anderen, wie z. B. Turbinen) als Otto- und Dieselmotoren weit verbreitet und als Maschinen und Fahrzeug­ antriebsaggregate bekannt. In zunehmendem Maße werden solche Motoren auch stationär als Blockheizkraftwerk für die Elektrizitätserzeugung und Abwärmenutzung z. B. zu Gebäudeheizzwecken eingesetzt (Kraft- Wärme-Kopplung).Heat engines are as atmospheric machines primarily (alongside some others, such as turbines) as Otto and diesel engines widely used and as machines and vehicles drive units known. Such engines are becoming increasingly popular also stationary as a combined heat and power plant for the generation of electricity and waste heat use z. B. used for building heating purposes (power Heat coupling).

Eine Alternative zu den konventionellen Wärme-Kraft-Maschinen ist ein Niedertemperatur-Sekundärkreis-Wärme-Kraft-Aggregat wie das Schaltbild auf Seite 2 zeigt. Arbeitsmittel in dem Aggregat ist ein niedrigsiedender Kohlenwasserstoff wie er in Kompressor-Wärmepumpen bzw. Kältemaschinen Verwendung findet. In einem geschlossenen Kreis­ lauf (Pfeile zeigen die Strömungsrichtung) wird über den Verdampfer 2 dem Arbeitsmittel Wärme (Q1) zugeführt. Der ansteigende Dampfdruck dehnt sich in der Expansionsmaschine aus und versetzt diese in Dreh­ bewegung. Ein strömen des Dampfes in die entgegengesetzte Richtung wird durch das Rückschlagventil verhindert. Der nach Arbeitsleistung aus der Expansionsmaschine ausströmende Dampf wird anschließend im Wärmerückgewinner (Rekuperator) in dem er seine Restwärme z. T. an das vorströmende Arbeitsmittel abgibt z. T. verflüssigt. Da die Ex­ pansionsmaschine über die Kupplungswelle mit dem Verdichter mechanisch verbunden ist, saugt der Verdichter bei sich drehender Expansions­ maschine gleichzeitig das Arbeitsmittel durch das Expansionsventil in den Verdampfer 1. Im Verdampfer 1 kann dem Arbeitsmittel ander­ weitig nicht nutzbare, wie Erd- oder Luftwärme, zugeführt werden. Anschließend saugt der Verdichter das Arbeitsmittel an und befördert es über ein Rückschlagventil und den Rekuperator wieder in den Ver­ dampfer 2, über den Kollektor und einen Wärmetauscher besteht noch die Möglichkeit einer Sonnenwärmeeinkopplung. Wird das dem Expansions­ ventil parallel geschaltete Ventil geöffnet, so daß damit die Saug­ leistung des Verdichters vermindert wird, kann eine höhere mecha­ nische Wellenleistung entnommen und z. B. ein el. Generator angetrieben werden. Da die Arbeitstemperatur kaum über 150% liegt kann eine externe Kühlung entfallen. Schmiermittel wird dem Arbeitsmittel als Öl zugesetzt. Als Expansionsmaschine bzw. Kompressionsmaschine kann vorzugsweise wegen der einfachen Funktion und der kostengünstigen Herstellung je ein Flügelzellenaggregat, wie in der Patentanmeldung: Aktenzeichen: 199 28 520.9 beschrieben, eingesetzt werden. Aber auch andere Bauarten von Expansions- bzw. Kompressionsmaschinen sind einsetzbar.An alternative to conventional heat and power machines is a low-temperature secondary circuit heat and power unit as shown in the circuit diagram on page 2. Working fluid in the unit is a low-boiling hydrocarbon as used in compressor heat pumps or refrigeration machines. In a closed circuit (arrows show the direction of flow), heat (Q1) is supplied to the working medium via the evaporator 2 . The rising steam pressure expands in the expansion machine and sets it in rotation. The check valve prevents the steam from flowing in the opposite direction. The steam flowing out of the expansion machine after work is then in the heat recuperator (recuperator) in which it uses its residual heat. T. to the incoming work equipment z. T. liquefied. Since the expansion machine is mechanically connected to the compressor via the coupling shaft, the compressor sucks the working fluid through the expansion valve into the evaporator 1 while the expansion machine is rotating. In the evaporator 1 , the working medium can be supplied to other, unusable, such as geothermal or air heat. Then the compressor sucks in the working fluid and conveys it back to the United steamer 2 via a non-return valve and the recuperator. If the valve connected in parallel with the expansion valve is opened so that the suction power of the compressor is reduced, a higher mechanical shaft power can be extracted and z. B. an el. Generator are driven. Since the working temperature is hardly above 150%, external cooling is not necessary. Lubricant is added to the equipment as an oil. A vane cell unit, as described in the patent application: file number: 199 28 520.9, can preferably be used as the expansion machine or compression machine because of the simple function and the inexpensive production. However, other types of expansion or compression machines can also be used.

Claims (1)

Ein Sekundärkreis-Wärme-Kraft-Aggregat ist aus folgenden Haupt­ bestandteilen aufgebaut:
  • 1. Einer Expansionsmaschine
  • 2. Einer Kompressionsmaschine
  • 3. Expansions- u. Kompressionsmaschine sind mechanisch miteinander gekuppelt
  • 4. Expansions- u. Kompressionsmaschine sind thermisch voneinander getrennt
  • 5. Einem Wärmerückgewinner
  • 6. Einem Dampfverflüssiger
  • 7. Einem Expansionsventil
  • 8. Verdampferwärmetauschern
  • 9. Einem niedrigsiedenden flüssigen Arbeitsmittel
A secondary circuit heat and power unit is made up of the following main components:
  • 1. An expansion machine
  • 2. A compression machine
  • 3. Expansion u. Compression machines are mechanically coupled to one another
  • 4. Expansion u. Compression machines are thermally separated
  • 5. A heat recovery
  • 6. A steam liquefier
  • 7. An expansion valve
  • 8. Evaporator heat exchangers
  • 9. A low-boiling liquid working fluid
DE1999133761 1999-07-19 1999-07-19 Secondary circuit thermal engine unit for machine or vehicle drive has expansion and compression machines mechanically connected but thermally separated Withdrawn DE19933761A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1999133761 DE19933761A1 (en) 1999-07-19 1999-07-19 Secondary circuit thermal engine unit for machine or vehicle drive has expansion and compression machines mechanically connected but thermally separated

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1999133761 DE19933761A1 (en) 1999-07-19 1999-07-19 Secondary circuit thermal engine unit for machine or vehicle drive has expansion and compression machines mechanically connected but thermally separated

Publications (1)

Publication Number Publication Date
DE19933761A1 true DE19933761A1 (en) 2001-01-25

Family

ID=7915260

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1999133761 Withdrawn DE19933761A1 (en) 1999-07-19 1999-07-19 Secondary circuit thermal engine unit for machine or vehicle drive has expansion and compression machines mechanically connected but thermally separated

Country Status (1)

Country Link
DE (1) DE19933761A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10149567B4 (en) * 2001-05-07 2011-08-11 Peter Bresch Steam engine for generating useful and return energy
CN103277153A (en) * 2013-05-08 2013-09-04 南京溧马新能源科技有限公司 Organic Rankine cycle heat engine device based on multiple expansion machines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10149567B4 (en) * 2001-05-07 2011-08-11 Peter Bresch Steam engine for generating useful and return energy
CN103277153A (en) * 2013-05-08 2013-09-04 南京溧马新能源科技有限公司 Organic Rankine cycle heat engine device based on multiple expansion machines
CN103277153B (en) * 2013-05-08 2015-02-11 南京溧马新能源科技有限公司 Organic Rankine cycle heat engine device based on multiple expansion machines

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8139 Disposal/non-payment of the annual fee