ITMI20010044A1 - COOLING DEVICE PARTICULARLY DESIGNED TO BE APPLIED TO A REFRIGERATION UNIT - Google Patents
COOLING DEVICE PARTICULARLY DESIGNED TO BE APPLIED TO A REFRIGERATION UNIT Download PDFInfo
- Publication number
- ITMI20010044A1 ITMI20010044A1 IT2001MI000044A ITMI20010044A ITMI20010044A1 IT MI20010044 A1 ITMI20010044 A1 IT MI20010044A1 IT 2001MI000044 A IT2001MI000044 A IT 2001MI000044A IT MI20010044 A ITMI20010044 A IT MI20010044A IT MI20010044 A1 ITMI20010044 A1 IT MI20010044A1
- Authority
- IT
- Italy
- Prior art keywords
- cooling device
- compressor
- chamber
- motor
- fluid
- Prior art date
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 26
- 238000005057 refrigeration Methods 0.000 title claims abstract description 12
- 239000012530 fluid Substances 0.000 claims abstract description 15
- 238000009835 boiling Methods 0.000 claims abstract description 12
- 230000001174 ascending effect Effects 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims 1
- 238000013021 overheating Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0266—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers
-
- 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
- F25B31/00—Compressor arrangements
- F25B31/006—Cooling of compressor or motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/122—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and being formed of wires
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Geometry (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Compressor (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
Descrizione del Brevetto per Invenzione Industriale avente per titolo: Description of the Patent for Industrial Invention entitled:
"DISPOSITIVO DI RAFFREDDAMENTO, PARTICOLARMENTE STUDIATO PER ESSERE APPLICATO AD UNITA' DI REFRIGERAZIONE" "COOLING DEVICE, PARTICULARLY DESIGNED TO BE APPLIED TO A REFRIGERATION UNIT"
DESCRIZIONE DESCRIPTION
Il presente trovato ha come oggetto un dispositivo di raffreddamento, particolarmente studiato per unità di refrigerazione. The present invention relates to a cooling device, particularly designed for refrigeration units.
Il motocompressore applicato alle unità di refrigerazione, specialmente di prestazioni elevate, presenta sovente problemi di surriscaldamento che possono causare allo stesso una perdita di efficienza e danni di maggiore entità. The motor-compressor applied to refrigeration units, especially those of high performance, often has overheating problems that can cause it to lose efficiency and damage to a greater extent.
Sono state proposte diverse soluzioni per ovviare a tale inconveniente, utilizzando lo stesso circuito di raffreddamento dell'apparecchiatura, senza tuttavia raggiungere i risultati sperati. Various solutions have been proposed to obviate this drawback, using the same cooling circuit as the equipment, without however achieving the desired results.
Il problema del surriscaldamento è particolarmente importante nei motocompressori di alte prestazioni, per esempio del tipo Scroll, ed in altri motocompressori alternativi, per esempio del tipo Danfoss. The problem of overheating is particularly important in high performance motor compressors, for example the Scroll type, and in other alternative motor compressors, for example the Danfoss type.
Gli accorgimenti costruttivi adottati in alcuni di tali motocompressori, atti a favorirne il raffreddamento, non risolvono il problema in modo soddisfacente. The constructive measures adopted in some of these motor-compressors, designed to favor their cooling, do not solve the problem satisfactorily.
Compito del presente trovato è quello di realizzare un dispositivo di raffreddamento in grado di evitare il surriscaldamento del motocompressore delle unità di refrigerazione. The aim of the present invention is to provide a cooling device capable of avoiding overheating of the motor-compressor of the refrigeration units.
Nel'ambito di questo compito, uno scopo del trovato è quello di realizzare un dispositivo di raffreddamento applicabile a diversi tipi di motocompressore anche del tipo già esistente. Within the scope of this aim, an object of the invention is to provide a cooling device which can be applied to different types of motor-compressor, including those of the already existing type.
Un altro scopo del trovato è quello di realizzare un dispositivo di raffreddamento che operi in modo completamente indipendente dalla unità di refrigerazione. Another object of the invention is to provide a cooling device which operates completely independently of the refrigeration unit.
Questo ed altri scopi, che meglio appariranno evidenziati in seguito, sono raggiunti da un dispositivo di raffreddamento, particolarmente per unità di refrigerazione, caratterizzato dal fatto di comprendere una camera atta ad avvolgere, almeno parzialmente, la calotta di un motocompressore, ed atta ad accogliere un fluido bassobollente; la suddetta camera è collegata ad un polo condensante, o condensatore, mediante una tubazione ascendente del vapore surriscaldato ed una tubazione di ritorno del vapore liquefatto dal polo condensante; il suddetto fluido è atto ad estrarre calore dal motocompressore. This and other purposes, which will appear more clearly in the following, are achieved by a cooling device, particularly for refrigeration units, characterized in that it comprises a chamber suitable for wrapping, at least partially, the cap of a motor compressor, and suitable for accommodating a low-boiling fluid; the aforesaid chamber is connected to a condensing pole, or condenser, by means of an ascending pipe for the superheated steam and a return pipe for the liquefied steam from the condensing pole; the aforesaid fluid is able to extract heat from the motor-compressor.
Ulteriori caratteristiche e vantaggi dell'oggetto del presente trovato risulteranno maggiormente evidenziati attraverso un esame della descrizione di una forma di realizzazione preferita, ma non esclusiva, del trovato, illustrata a titolo indicativo e non limitativo nei disegni allegati, in cui: Further characteristics and advantages of the object of the present invention will become more evident through an examination of the description of a preferred but not exclusive embodiment of the invention, illustrated by way of non-limiting example in the attached drawings, in which:
la figura 1 è una vista in alzato schematica di una unità di refrigerazione dotata del dispositivo di raffreddamento, secondo il trovato; Figure 1 is a schematic elevation view of a refrigeration unit equipped with the cooling device according to the invention;
la figura 2 è una vista in alzato, ingrandita, del dispositivo di raffreddamento secondo il trovato; Figure 2 is an enlarged elevation view of the cooling device according to the invention;
la figura 3 è una vista in alzato, ulteriormente ingrandita, del dispositivo secondo il trovato, applicato alla calotta del compressore. Figure 3 is a further enlarged elevation view of the device according to the invention, applied to the compressor cap.
Con particolare riferimento ai simboli numerici delle suddette figure, il dispositivo di raffreddamento, secondo il trovato, indicato globalmente con il numero di riferimento 1 , è applicabile ad una unità di refrigerazione 2 comprendente, in modo di per sé noto, un motocompressore 3, un condensatore 4, un ricevitore di liquido 5, un filtro deidratore 6, un restrittore 7, un evaporatore 8, ed un separatore di liquido 9. With particular reference to the numerical symbols of the aforementioned figures, the cooling device, according to the invention, generally indicated with the reference number 1, can be applied to a refrigeration unit 2 comprising, in a per se known manner, a motor compressor 3, a condenser 4, a liquid receiver 5, a filter drier 6, a restrictor 7, an evaporator 8, and a liquid separator 9.
Secondo il trovato, il dispositivo di raffreddamento 1 comprende, essenzialmente, una camera 10, atta ad avvolgere parzialmente o completamente, la calotta del motocompressore 3, ed atta ad accogliere un fluido bassobollente, per esempio con punto di ebollizione a 20 °C. According to the invention, the cooling device 1 essentially comprises a chamber 10, able to partially or completely wrap the cap of the motor-compressor 3, and able to receive a low-boiling fluid, for example with a boiling point at 20 ° C.
Tra la camera 10 e la parete esterna del motocompressore 3 è disposta una cintura 1 1 che funge da ponte termico tra la calotta del motocompressore ed il fluido bassobollente contenuto nella camera 10. Between the chamber 10 and the external wall of the motor-compressor 3 there is a belt 11 which acts as a thermal bridge between the cap of the motor-compressor and the low-boiling fluid contained in the chamber 10.
Quest'ultima è collegata ad un polo condensante, o condensatore, 12 mediante una tubazione ascendente 13 del vapore surriscaldato ed una tubazione di ritorno 14, del vapore liquefatto dal polo condensante 12. The latter is connected to a condensing pole, or condenser, 12 by means of an ascending pipe 13 for the superheated steam and a return pipe 14 for the liquefied vapor from the condensing pole 12.
La cintura 1 1 può essere realizzata mediante una spirale in rame aderente alla calotta del motocompressore 3, e che funge da ponte termico tra la sorgente del surriscaldamento ed il fluido bassobollente. The belt 11 can be made by means of a copper spiral adhering to the cap of the motor-compressor 3, and which acts as a thermal bridge between the source of overheating and the low-boiling fluid.
Quest'ultimo è atto ad assorbire tale calore in eccesso eliminandolo mediante il polo condensante, il quale a sua volta convoglia il fluido, nuovamente liquefatto, alla camera 10, continuando il ciclo di raffreddamento. The latter is able to absorb this excess heat by eliminating it by means of the condensing pole, which in turn conveys the fluid, liquefied again, to the chamber 10, continuing the cooling cycle.
Il dispositivo di raffreddamento secondo il trovato comprende inoltre una valvola 15 di carica e di controllo pressione ed una presa di pressione 16 per fusibile di sicurezza, associate alla tubazione ascendente 13. The cooling device according to the invention further comprises a charge and pressure control valve 15 and a pressure take-off 16 for safety fuse, associated with the ascending pipe 13.
Il dispositivo comprende inoltre un indicatore 17 del livello di fluido e di passaggio del flusso nella fase attiva, associato alla tubazione di ritorno 14. The device also comprises an indicator 17 of the fluid level and of the passage of the flow in the active phase, associated with the return pipe 14.
Secondo le specifiche esigenze, il polo condensante 12 può essere collocato in posizione relativamente ravvicinata, come nell'esempio illustrato, oppure in posizione remota. According to specific requirements, the condensing pole 12 can be placed in a relatively close position, as in the example illustrated, or in a remote position.
La tubazione ascendente 13 può inoltre essere vantaggiosamente dotata di una guaina isolante 18. The ascending pipe 13 can also advantageously be provided with an insulating sheath 18.
Inoltre, la camera 10 può essere anche ricavata direttamente sulla calotta del motocompressore. Furthermore, the chamber 10 can also be obtained directly on the motor-compressor cap.
La medesima camera 10, in via alternativa, può essere applicata al condotto uscente del circuito di uscita dal compressore. The same chamber 10, alternatively, can be applied to the outgoing duct of the compressor outlet circuit.
Si è in pratica constatato che il trovato raggiunga il compito e gli scopi prefissati. In practice it has been found that the invention achieves the intended aim and objects.
Naturalmente i materiali impiegati, nonché le dimensioni degli elementi costitutivi, potranno essere qualsiasi, secondo le esigenze e lo stato della tecnica. The materials used, as well as the dimensions of the constituent elements, may of course be any according to the requirements and the state of the art.
Claims (9)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2001MI000044A ITMI20010044A1 (en) | 2001-01-11 | 2001-01-11 | COOLING DEVICE PARTICULARLY DESIGNED TO BE APPLIED TO A REFRIGERATION UNIT |
EP02000381A EP1223390B1 (en) | 2001-01-11 | 2002-01-07 | Refrigeration unit with cooling device |
AT02000381T ATE293235T1 (en) | 2001-01-11 | 2002-01-07 | REFRIGERANT UNIT WITH A COOLING DEVICE |
DE60203648T DE60203648T2 (en) | 2001-01-11 | 2002-01-07 | COLD UNIT WITH A COOLER |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2001MI000044A ITMI20010044A1 (en) | 2001-01-11 | 2001-01-11 | COOLING DEVICE PARTICULARLY DESIGNED TO BE APPLIED TO A REFRIGERATION UNIT |
Publications (1)
Publication Number | Publication Date |
---|---|
ITMI20010044A1 true ITMI20010044A1 (en) | 2002-07-11 |
Family
ID=11446443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2001MI000044A ITMI20010044A1 (en) | 2001-01-11 | 2001-01-11 | COOLING DEVICE PARTICULARLY DESIGNED TO BE APPLIED TO A REFRIGERATION UNIT |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1223390B1 (en) |
AT (1) | ATE293235T1 (en) |
DE (1) | DE60203648T2 (en) |
IT (1) | ITMI20010044A1 (en) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1897178A (en) * | 1930-03-14 | 1933-02-14 | Kelvinator Corp | Refrigerant compressor cooling system |
US2250648A (en) * | 1939-03-28 | 1941-07-29 | Nash Kelvinator Corp | Refrigerating apparatus |
DE970063C (en) * | 1944-01-08 | 1958-08-14 | Siemens Elektrogeraete Gmbh | Compression refrigeration machine |
GB636615A (en) * | 1947-07-03 | 1950-05-03 | Gen Electric Co Ltd | Improvements in and relating to heat-exchangers for exchanging heat between a solid surface and a fluid |
US2672736A (en) * | 1950-08-31 | 1954-03-23 | Nash Kelvinator Corp | Compressor cooling in refrigerating apparatus |
FR2488683A1 (en) * | 1980-08-13 | 1982-02-19 | Refrigeration Cie Caladoise | Anti-condensation device for outer walls of refrigerators - uses auxiliary fluid circuit heated by waste energy from motor-compressor unit |
JPS59212692A (en) * | 1983-05-17 | 1984-12-01 | Akutoronikusu Kk | Structure of fin for heat exchange |
US5695004A (en) * | 1992-07-10 | 1997-12-09 | Beckwith; William R. | Air conditioning waste heat/reheat method and apparatus |
TW327672B (en) * | 1995-10-05 | 1998-03-01 | Babcock & Wilcox Co | Field serviceable fill tube for use on heat pipes |
-
2001
- 2001-01-11 IT IT2001MI000044A patent/ITMI20010044A1/en unknown
-
2002
- 2002-01-07 DE DE60203648T patent/DE60203648T2/en not_active Expired - Fee Related
- 2002-01-07 AT AT02000381T patent/ATE293235T1/en not_active IP Right Cessation
- 2002-01-07 EP EP02000381A patent/EP1223390B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ATE293235T1 (en) | 2005-04-15 |
DE60203648T2 (en) | 2006-03-02 |
EP1223390A1 (en) | 2002-07-17 |
EP1223390B1 (en) | 2005-04-13 |
DE60203648D1 (en) | 2005-05-19 |
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