ITMS20080004A1 - AIR CONDENSER WITH DOUBLE STAGE FOR REFRIGERATING SYSTEMS EXPANDING GAS - Google Patents

AIR CONDENSER WITH DOUBLE STAGE FOR REFRIGERATING SYSTEMS EXPANDING GAS Download PDF

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Publication number
ITMS20080004A1
ITMS20080004A1 IT000004A ITMS20080004A ITMS20080004A1 IT MS20080004 A1 ITMS20080004 A1 IT MS20080004A1 IT 000004 A IT000004 A IT 000004A IT MS20080004 A ITMS20080004 A IT MS20080004A IT MS20080004 A1 ITMS20080004 A1 IT MS20080004A1
Authority
IT
Italy
Prior art keywords
condenser
expanding gas
air condenser
double stage
refrigerating systems
Prior art date
Application number
IT000004A
Other languages
Italian (it)
Inventor
Valter Angelotti
Benedetti Ivano Di
Vinicio Neri
Original Assignee
Valter Angelotti
Benedetti Ivano Di
Vinicio Neri
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 Valter Angelotti, Benedetti Ivano Di, Vinicio Neri filed Critical Valter Angelotti
Priority to IT000004A priority Critical patent/ITMS20080004A1/en
Publication of ITMS20080004A1 publication Critical patent/ITMS20080004A1/en

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Classifications

    • 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
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • 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
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • F25B40/06—Superheaters

Description

DESCRIZIONE dell’invenzione avente per TITOLO: DESCRIPTION of the invention with TITLE:

“Condensatore ad aria a doppio stadio per impianti frigoriferi con sfruttamento del gas espanso " "Double-stage air condenser for refrigeration systems with exploitation of expanded gas"

Gli impianti frigoriferi possono essere schematizzati con quattro componenti principali: il compressore, il condensatore, la valvola di espansione e l’evaporatore. Refrigeration systems can be schematized with four main components: the compressor, the condenser, the expansion valve and the evaporator.

Nel condensatore il gas in uscita dal compressore viene raffreddato prima di essere inviato alla valvola di espansione. In the condenser, the gas leaving the compressor is cooled before being sent to the expansion valve.

Se l'ambiente in cui si trova il condensatore è particolarmente caldo il salto termico tra l’aria che lambisce il condensatore e la sua superficie è minore e questo causa una minore asportazione di calore con conseguenti problemi nell’impianto. If the environment in which the condenser is located is particularly hot, the temperature difference between the air that touches the condenser and its surface is smaller and this causes less heat removal with consequent problems in the system.

Allo stato attuale della tecnica si ovvia a questo problema montando uno scambiatore a fascio tubiera in cui il gas compresso viene raffreddato da un flusso d’acqua in controcorrente oppure uno scambiatore che raffredda l'aria in ingresso al condensatore sfruttando il gas freddo che esce dall’ evaporatore. In the current state of the art, this problem is overcome by mounting a tube bundle exchanger in which the compressed gas is cooled by a countercurrent water flow or an exchanger that cools the air entering the condenser by exploiting the cold gas coming out of the evaporator.

Lo svantaggio del primo sistema sì ha nel consumo di acqua se lo scambiatore sfrutta acqua corrente e nel dover introdurre un impianto per il raffreddamento dell'acqua se lo scambiatore è a ciclo chiuso mentre il secondo sistema presenta lo svantaggio di presentare i pacchi alette di scambiatore e condensatore sfalsati creando così un ostacolo al flusso dell’aria e favorendo l incrostazione di sporco e polvere nei punti di contatto tra i due pacchi, riducendo cosi l efficacia delio scambio termico. The disadvantage of the first system is in the consumption of water if the exchanger uses running water and in having to introduce a system for cooling the water if the exchanger is closed-cycle while the second system has the disadvantage of having the exchanger fin packs and condenser staggered thus creating an obstacle to the air flow and favoring the encrustation of dirt and dust in the points of contact between the two packs, thus reducing the efficiency of the heat exchange.

Oggetto della presente invenzione è un condensatore che unisce un’ unica carcassa ed un unico pacco di alette il condensatore ad aria tradizionale ed il raffreddatore dell’aria in ingresso. The subject of the present invention is a condenser that combines a single casing and a single pack of fins, the traditional air condenser and the inlet air cooler.

Con riferimento allo schema tecnico allegato in Fig. 1 sì descrivono ora più dettagliatamente le varie parti di una possibile forma meccanica dell’apparecchio. With reference to the technical diagram attached in Fig. 1, the various parts of a possible mechanical form of the device are now described in more detail.

Esso consta di una carcassa unica ed un unico pacco di alette al cui interno sono sistemati due scambiatori indipendenti : il condensatore ed il raffreddatore. It consists of a single casing and a single pack of fins inside which two independent exchangers are placed: the condenser and the cooler.

Il condensatore riceve il gas compresso ad alta temperatura dai tubo A e, dopo che questo si è raffreddato all’interno del condensatore stesso, lo invia alla valvola di espansione tramite il tubo B, The condenser receives the high temperature compressed gas from tube A and, after it has cooled inside the condenser itself, sends it to the expansion valve via tube B,

Il raffreddatore riceve gas freddo a bassa pressione dall' evaporatore tramite il tubo C e , dopo aver raffreddato l’aria e riscaldato il gas freddo con conseguente incremento di pressione dì questo ultimo lo invia ai compressore tramite il tubo D . Il flusso d’aria è assicurato da ventilatori montati sulla carcassa del condensatore. Il fatto di avere un unico pacco dì alette permette anche che una parte dello scambio termico avvenga per condu nel contatto metallo-metallo. The cooler receives cold gas at low pressure from the evaporator through pipe C and, after cooling the air and heating the cold gas with a consequent increase in pressure, the latter sends it to the compressor through pipe D. The air flow is ensured by fans mounted on the condenser casing. The fact of having a single pack of fins also allows a part of the heat exchange to take place per conduct in the metal-metal contact.

Quella che si è descritta e rappresentata non è che possìbili forme di esecuzione meccanica dell apparecchio e possono quindi aversi diverse ovvie variazioni che qui sarebbe inutile elencare, senza tuttavia uscire dall'ambito delia presente invenzione, What has been described and represented is only possible mechanical embodiments of the apparatus and therefore there may be several obvious variations which it would be useless to list here, without however departing from the scope of the present invention.

Claims (1)

RIVENDICAZIONI 1) Condensatore a doppio stadio per impianti frigorìferi in cui l in ingresso al primo stadio del condensatore, dove circola il gas caldo che arriva dal compressore, viene raffreddata tramite passaggio nel secondo stadio dove circola il gas freddo proveniente dall’ evaporatore dell’ impianto frigorifero stesso , con lo scopo di migliorare la condensazione ed il rendimento dell' impianto , soprattutto con elevate temperature ambientali, e di introdurre una minor quantità di calore nell' ambiente in cui è installato il condensatoreCLAIMS 1) Two-stage condenser for refrigeration systems in which the inlet to the first stage of the condenser, where the hot gas from the compressor circulates, is cooled by passing through the second stage where the cold gas from the evaporator of the refrigeration plant circulates itself, with the aim of improving the condensation and efficiency of the system, especially with high ambient temperatures, and of introducing a smaller amount of heat into the environment in which the condenser is installed
IT000004A 2008-08-29 2008-08-29 AIR CONDENSER WITH DOUBLE STAGE FOR REFRIGERATING SYSTEMS EXPANDING GAS ITMS20080004A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT000004A ITMS20080004A1 (en) 2008-08-29 2008-08-29 AIR CONDENSER WITH DOUBLE STAGE FOR REFRIGERATING SYSTEMS EXPANDING GAS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000004A ITMS20080004A1 (en) 2008-08-29 2008-08-29 AIR CONDENSER WITH DOUBLE STAGE FOR REFRIGERATING SYSTEMS EXPANDING GAS

Publications (1)

Publication Number Publication Date
ITMS20080004A1 true ITMS20080004A1 (en) 2010-02-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
IT000004A ITMS20080004A1 (en) 2008-08-29 2008-08-29 AIR CONDENSER WITH DOUBLE STAGE FOR REFRIGERATING SYSTEMS EXPANDING GAS

Country Status (1)

Country Link
IT (1) ITMS20080004A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2602529A1 (en) * 1976-01-23 1977-08-11 Rudibert Dipl In Goetzenberger Stable refrigerant circuit with heat exchanger - heats compressor inlet gas and controls expansion valve by temp. sensor
US5212965A (en) * 1991-09-23 1993-05-25 Chander Datta Evaporator with integral liquid sub-cooling and refrigeration system therefor
JPH08327192A (en) * 1995-06-06 1996-12-13 Toyo Saamokontoroole Kk Evaporator of freezer
EP0779481A2 (en) * 1995-12-15 1997-06-18 Showa Aluminum Corporation Refrigeration cycle system
JP2008089252A (en) * 2006-10-03 2008-04-17 Goto Kinriyu Cooling apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2602529A1 (en) * 1976-01-23 1977-08-11 Rudibert Dipl In Goetzenberger Stable refrigerant circuit with heat exchanger - heats compressor inlet gas and controls expansion valve by temp. sensor
US5212965A (en) * 1991-09-23 1993-05-25 Chander Datta Evaporator with integral liquid sub-cooling and refrigeration system therefor
JPH08327192A (en) * 1995-06-06 1996-12-13 Toyo Saamokontoroole Kk Evaporator of freezer
EP0779481A2 (en) * 1995-12-15 1997-06-18 Showa Aluminum Corporation Refrigeration cycle system
JP2008089252A (en) * 2006-10-03 2008-04-17 Goto Kinriyu Cooling apparatus

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