US2008333A - Device for cooling a heat generator by means of a circulating auxiliary liquid - Google Patents

Device for cooling a heat generator by means of a circulating auxiliary liquid Download PDF

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Publication number
US2008333A
US2008333A US618675A US61867532A US2008333A US 2008333 A US2008333 A US 2008333A US 618675 A US618675 A US 618675A US 61867532 A US61867532 A US 61867532A US 2008333 A US2008333 A US 2008333A
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United States
Prior art keywords
generator
cooling
liquid
heat
circulating
Prior art date
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Expired - Lifetime
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US618675A
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English (en)
Inventor
Nesselmann Kurt
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.)
Siemens Schuckertwerke AG
Siemens Corp
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Siemens Corp
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B17/00—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type
    • F25B17/08—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type the absorbent or adsorbent being a solid, e.g. salt

Definitions

  • My invention relates to a device for cooling a peri a s rpti n r fl' ti pp r heatgenerator by means of a circulating auxwhich operates With Solid absorption edifliliary liquid, and more particularly to a device
  • acter I denotes the generator-absorber contain- Devices for the transfer of heat which operate ing a solid absorbent consisting, for instance, of
  • auxiliary liquid circulating between a calcium chloride saturated with ammonia.
  • generator-absorber the refrigerating meto those skilled in the art.
  • dium passes during the generating period through it is common practice both for heating and coola conduit 2 into an air-cooled condenser 3 and ing purposes to transfer the heat by means of thence into a containerl communicating with an 10 a circulating auxiliary medium which remains evaporation coil 5 projecting into the cooling liquid during the entire process.
  • an chamber 6, the coil 5 being placed in a receptacle auxiliary liquid may also be employed for the I! containing asalt solution.
  • the generator-ababove purpose the circulation of which is efsorber is surrounded by a cooling jacket I from 5 fected by the alternate evaporation and conthe upper part of which a conduit 8 extends densation of the liquid. to an air-cooled return cooler 9, whereas a con- My invention contemplates a device for the duit l0 connects the return cooler to the lower transfer of heat with an auxiliary liquid cirend of the cooling jacket I.
  • a valve ll serves to culating between the heat generator and the interrupt the circulation of the auxiliary liquid heat consumer, and its object is to provide two during the generating period, the valve being con- 20 circulating paths for the auxiliary liquid which trolled in such a manner as to be open during are so arranged in relation to each other that the the absorption period and closed during the genauxiliary liquid can only circulate in the one circrating period.
  • the control is effected by means culating path at temperatures which lie below of an electromagnet 20 which, when energized,
  • a circulation may also take place heating element for the generator-absorber ",l in the other circulating path by the alternate During the generating period the heating implantation and condensation of the liquid. In is switched in at the same time with the electroeffecting such a transfer of heat, the heat conmagnet 20 by a contact making clock ll. Dursumer designed as a cooler for the auxiliary ing the absorption period the contact making 30 liquid may be carried out so as not to be comclock breaks in a well-known manner the circuit P y fi d w e auxiliary liquid- In h for the heating element ill and the electromagnet case a conduit leads from the heat generator to Ill.
  • I2 is a cooler which acts at th same m the cooler below the surface of the liquid cona an expansion vessel for the auxiliary liquid tained therein and another conduit above the n is provided at the top with an inlet connec- 35 same, whereas a common conduit returns to the ti I: hich, if desired, may be designed as a heat e r t rsafety valve.
  • the expansion vessel l2 takes up
  • the dev e accord to t e inve t on may be the increased volume of the cooling liquid durused for a ious practical purp ses. It is paring the heating so as to prevent an undue in 40 ticularly suitable as safety device against undue crease inv pressure in the system.
  • a conduit l4 extending from the uppe/ the conduit entering at a point below the level part of th cooling jacket I enters the expansilil i 0f the q d; o instance, y ing a cook or vessel I! at a point above the highest possible valve, the temperature in the generator may 1 1 of t 1iqu1d rise within unreasonable limits.
  • an auxiliary liquid i employed conduit entering the cooler above the surface thi apparatus the boiling point of which is of the liquld and by-passing the Valve Prevents so high that normally no evaporation of the coolthe temperature in the generator from obtaini medium may take place.
  • Turpentine oil and ing too high a value since in this case the cirtransformer oil are, for instance, suitable for this 50 culation of the liquid is introduced by the alterpurpose.
  • Liquid mixtures or solutions may also nate evaporation and condensation of the liquid. be employed.
  • the space in the expansion vessel The accompanying drawing represents an em- I2 above the surface of the liquid is preferably bodiment in a diagrammatic form of a device fllled with an inert gas, for instance nitrogen, in
  • the auxiliary liquid contained in the generator cooling jacket I is heated during the absorption period by the heat of absorption so that the liquid rises through the conduit 8 into the return cooler 9, and there the liquid gives off the heat to the atmosphere with the aid of radiating ribs.
  • the cooled-ofi liquid returns then from the return cooler 9 through the conduit ID to the lower part of the cooling jacket 1.
  • the valve II is closed in the above described manner.
  • the expansion vessel With radiating fins l5. Owing to the thermo-siphon action of the vapor bubbles in the conduit I4 a circulation of the cooling medium is efiected from the cooling jacket 'I through the conduit I4, the expansion vessel I2, the connecting conduit I6, the return cooler 9 and through the conduit I0 back to the cooling jacket I so that the excess heat from the expansion vessel I 2 and the return cooler 9 is given off to the atmosphere.
  • a circulating system comprising a part in heat exchange relation with the heat'generator, a heat consuming device and conduits therefor, a liquid in said circulating system having a boiling point higher than the maximum temperature prevailing under normal operatingconditions, and a safety device connected with said circulating system operable as a result of the boiling of the liquid upon undue rises in temperature of the heat generator.
  • a circulating system comprising a part in heat exchange relation with the heat generator, a cooling medium in said circulating system having a boiling point higher than the maximum temperature prevailing under normal operating conditions, means for interrupting the circulation in said system, and means for insuring a suflicient amount of circulation of the cooling medium during said interruption to maintain the temperature at a safety point and prevent undue rises of said tem- I perature.
  • a circulating system comprising a part in heat exchange relation with the heat generator, a branch circuit communicating with said system, and a cooling medium having a boilng point such that said medium circulates as a liquid in said system under normal operating conditions and vaporizes into the branch circuit under abnormal operating conditions whereby to prevent undue rises in tem-' perature of the heat generator.
  • a circulating system comprising a part in heat exchange relation with the heat generator, a cooling medium for circulating in said system, means in said circulating system for interrupting the flow of the cooling medium during heating operation of the generator and normal temperature operations thereof, and means for by-passing said medium about said interrupting means when undue rises intemperature of the heat generator occur.
  • a device for cooling a heat generator comprising a circulating system having a part in heat exchange relation with the heat generator and a by-pass conduit communicating therewith to form two circulating paths, and an auxiliary liquid adapted to circulate in one of said paths at temperatures in the heat generator below the boiling point of said liquid and to circulate in the other path incident to,vaporization of said fluid at temperatures prevailing in the heat generator above the boiling point of said liquid.
  • a device for cooling a heat generator comprising a circulating system having a part in heat exchange relation with the heat generator and a by-pass conduit communicating therewith to form two circulating paths, an auxiliary liquid adapted to circulate in one of said paths at temperatures in the heat generator below the boiling point of said liquid and to circulate in the other path incident to vaporization of said liquid at temperatures prevailing in the heat generator above the boiling point of said liquid, and a cooling means in said by-pass conduit for cooling the liquid under the last mentioned conditions.
  • a heat generator a liquid container surrounding the generator, a cooling liquid in said container, a liquid cooler, conduits connecting the cooler with the container to form a liquid circulating system, a valve in said system for interrupting the circulation, and a safety means for receiving a part of the cooling medium comprising an expansion chamber connected to said system and adapted to relieve the system of excess pressure when undue temperature occurs in the generator during the interruption of the circulation.
  • the expansion chamber comprises a condenser and said condenser is connected to the circulating system by a rising pipe in which the vapors from the liquid raise said liquid to the condenser for condensation and return to the said system.
  • a circulation system comprising a part in heat exchange relation with the generator, a circulating medium in said system partly filling the same, cooling mans for cooling the circulating medium, two conduits between said cooling means and the part in heat exchange relation with the generator arranged to convey the circulating medium from the part in heat exchange with the generator to the cooler, one of the said conduits being connected with the cooling means at a point above the surface of the circulating medium and the other connected at a point below the level of the medium, and a conduit arranged to convey the circulating medium from the cooler back to the part in heat exchange with the generator.
  • a circulating system comprising a Part in heat exchange relation with the generator, a circulating the part in heat exchange with the generator to the cooler, one of said conduits being connected with the cooling means at a point above the surface of the circulating medium and the other connected at a point below the level of the medium, and a conduit arranged to convey the circulating medium from the cooler back to the part in heat exchange with the generator.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
US618675A 1931-06-30 1932-06-22 Device for cooling a heat generator by means of a circulating auxiliary liquid Expired - Lifetime US2008333A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2008333X 1931-06-30

Publications (1)

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US2008333A true US2008333A (en) 1935-07-16

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US618675A Expired - Lifetime US2008333A (en) 1931-06-30 1932-06-22 Device for cooling a heat generator by means of a circulating auxiliary liquid

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US (1) US2008333A (enrdf_load_stackoverflow)
SE (1) SE88723C1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435107A (en) * 1943-03-03 1948-01-27 Hoover Co Two temperature intermittent type absorption refrigerator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435107A (en) * 1943-03-03 1948-01-27 Hoover Co Two temperature intermittent type absorption refrigerator

Also Published As

Publication number Publication date
SE88723C1 (enrdf_load_stackoverflow) 1937-03-09

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