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1. WO2000039510 - REFRIGERATING DEVICE

Publication Number WO/2000/039510
Publication Date 06.07.2000
International Application No. PCT/JP1999/007025
International Filing Date 14.12.1999
IPC
F25B 7/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
7Compression machines, plant, or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
F25B 13/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
13Compression machines, plant, or systems, with reversible cycle
CPC
F25B 13/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
13Compression machines, plant or systems with reversible cycle
F25B 2313/005
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
2313Compression machines, plant, or systems with reversible cycle not otherwise provided for
005Outdoor unit expansion valves
F25B 2313/023
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
2313Compression machines, plant, or systems with reversible cycle not otherwise provided for
023using multiple indoor units
F25B 2400/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
2400General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
06Several compression cycles arranged in parallel
F25B 2400/22
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
2400General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
22Refrigeration systems for supermarkets
F25B 7/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
7Compression machines, plant, or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
Applicants
  • DAIKIN INDUSTRIES, LTD. [JP/JP]; Umeda Center Bldg. 4-12, Nakazaki-nishi 2-chome Kita-ku Osaka-shi Osaka 530-8323, JP (AllExceptUS)
  • KONDO, Isao [JP/JP]; JP (UsOnly)
  • UENO, Akitoshi [JP/JP]; JP (UsOnly)
  • MEZAKI, Takenori [JP/JP]; JP (UsOnly)
Inventors
  • KONDO, Isao; JP
  • UENO, Akitoshi; JP
  • MEZAKI, Takenori; JP
Agents
  • MAEDA, Hiroshi ; Taihei Building 4-8, Utsubohonmachi 1-chome Nishi-ku Osaka-shi Osaka 550-0004, JP
Priority Data
10/36951425.12.1998JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) REFRIGERATING DEVICE
(FR) DISPOSITIF DE REFRIGERATION
Abstract
(EN)
A refrigerating device which comprises a first refrigerating circuit (1) for a refrigerating system (6A) constructed for operation on a two-stage refrigerant cycle by connecting a high temperature refrigerant circuit (3) and a low temperature refrigerant circuit (4) through a refrigerant heat exchanger (5), and a second refrigerating circuit (2) constructed for operation on a refrigerating cycle different from that for the first refrigerating circuit (1), wherein the liquid piping (15a) of the high temperature refrigerant circuit (3) and the liquid piping (36a) of the second refrigerating circuit (2) are connected through a first connecting piping (41) while the suction gas piping (15b) of the high temperature refrigerant circuit (3) and the suction gas piping (36b) of the second refrigerating circuit (2) are connected through a second connecting piping (42). And in a two-stage refrigerant cycle refrigerating device applied to a showcase (6) or the like and provided with switching means (43, 44) for selectively allowing the refrigerant in the second refrigerant circuit (2) to flow into the refrigerant heat exchanger (5) of the first refrigerant circuit (1) through the connecting pipings (41, 42), it is arranged that even when a heat source device (11) is stopped, the refrigerating operation can be continued.
(FR)
Cette invention concerne un dispositif de réfrigération comprenant :un premier circuit de réfrigération (1) pour un système de réfrigération (6A) conçu pour fonctionner selon un cycle de réfrigération bi-étagé par raccordement d'un circuit réfrigérant haute température (3) et d'un circuit réfrigérant basse température (4) via un échangeur thermique (5) et; un second circuit de réfrigération (2) conçu pour fonctionner selon un cycle de réfrigération différent de celui du premier circuit (1). La tubulure pour liquide (15a) du circuit réfrigérant haute température (3) et la tubulure pour liquide (36a) du second circuit de réfrigération (2) sont reliées par une première tubulure (41) alors que la tubulure d'aspiration de gaz (15b) du circuit réfrigérant haute température (3) et la tubulure d'aspiration du gaz (36b) du second circuit de réfrigération (2) sont reliées par une tubulure (42). Dans un dispositif de réfrigération à cycle bi-étagé muni de moyens de commutation (43, 44) qui permettent de diriger sélectivement le réfrigérant du second circuit de réfrigération (2) vers l'échangeur thermique (5) du premier circuit de réfrigération (1) par des tubulures de liaison (41, 42), le système continue de fonctionner même si un dispositif de (dégagement) de chaleur (11) s'arrête.
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