CN2366801Y

CN2366801Y - Air cooling heat pump refrigeration system using plate type exchanger

Info

Publication number: CN2366801Y
Application number: CN 99225338
Authority: CN
Inventors: 何继乔
Original assignee: JIJIA ELECTROMECHANICAL EQUIPMENT CO Ltd ZHEJIANG
Current assignee: JIJIA ELECTROMECHANICAL EQUIPMENT CO Ltd ZHEJIANG
Priority date: 1999-01-08
Filing date: 1999-01-08
Publication date: 2000-03-01
Anticipated expiration: 2009-01-08

Abstract

The utility model relates to an improvement structure of an air cooling heat pump refrigeration system of a plate type exchanger, belonging to the technical field of refrigeration. The utility model is composed of a compressor, a four-way valve, a condenser, a dryer, an expansion valve, a one-way valve, a liquid storage dived, an evaporator, and a vapor liquid separator. The utility model is characterized in that fluid of the vapor and the liquid does not pass through the liquid storage device in refrigeration, and the liquid storage device only stores liquid in heat production. The utility model has the advantages of the plate heat exchanger, but also has the advantages of short running process, reduced injection rate of refrigerant, simpler structure, etc. The utility model is particularly suitable for being used in small areas, such as households, villas, floors of high buildings, etc.

Description

Use the air-cooled heat pump refrigeration system of plate type heat exchanger

The utility model relates to the architecture advances of the air-cooled heat pump refrigeration system of using plate type heat exchanger, belongs to refrigeration technology field.

The existing air-cooled heat pump refrigeration system of plate type heat exchanger of using is seen Fig. 1, it is by compressor 1, cross valve 2, cold-hot machine 3, four separate room valves 4, reservoir 5, drying box 6, visor 7, expansion valve 8, evaporimeter 9, vapour liquid separator 10, professional is familiar with, refrigerated medium charging amount that refrigeration system is suitable and system for content are long-pending, pressure and refrigeration (heat) property relationship are very close, and refrigerant amount is too much or very fewly all will influence performance of refrigerant systems.The refrigeration system internal volume is big more, the cold-producing medium that then needs is many more, and too much can cause the condenser hydrops, condenser pressure raises, power consumption increases, cross and can cause refrigeration (heat) quantity not sufficient at least, shown in Figure 1 is existing air-cooled heat pump refrigeration system, and its cooling flow is as follows: by compressor 1 → cross valve 2 → condenser 3 → check valve 4 → reservoir 5 → drier 6 → visor 7 → expansion valve 8 → check valve 4 → evaporimeter 9 → cross valve 2 → vapour liquid separator 10; It is as follows that it heats flow process: compressor 1 → cross valve 2 → evaporimeter 9 → check valve 4 → reservoir 5 → drier 6 → visor 7 → expansion valve 8 → check valve 4 → condenser 3 → cross valve 2 → vapour liquid separator 10, with above-mentioned two flow processs as can be seen, no matter cooling and warming all will be through the check valve reservoir that leads, therefore flow process is longer, and increased the injection rate of cold-producing medium, caused increasing cost.

The purpose of this utility model is to provide a kind of reservoir only to play the liquid storage effect when heating, and flow process is shorter, and structure is simpler, the air-cooled heat pump refrigeration system of the plate type heat exchanger of more reliable performance.

The utility model is realized by following technical scheme:

The utility model is made of compressor, cross valve, condenser, drier, expansion valve, check valve, reservoir, evaporimeter, vapour liquid separator, evaporimeter connects with cross valve respectively with vapour liquid separator, it is characterized in that order connects compressor, cross valve, condenser, drier, expansion valve, evaporimeter, vapour liquid separator, and connect reservoir and check valve at expansion valve to the valve bypass of evaporimeter, during refrigeration its running by compressor through cross valve, condenser, drier, expansion valve, evaporimeter, cross valve to vapour liquid separator; When heating its operational process by compressor through cross valve, evaporimeter, reservoir, check valve, expansion valve, drier, condenser, cross valve to vapour liquid separator.

From such scheme as can be known, the utlity model has following effect:

1. can reduce the cold-producing medium injection rate.Owing to need not pass through reservoir, operational process shortening during refrigeration, reduce the check valve number again, thereby can reduce the cold-producing medium injection rate accordingly, reduce cost.

2. simplified flow process.The prior art operational process need be passed through 12 parts such as compressor, cross valve, operational process of the present utility model only needs through 9 parts (refrigeration) or 11 parts (when heating), reduce thereby operational process is shortened with refrigerant charge, help the complete machine runnability more reliable and more stable with reduce cost.

3. structure is more simplified.Make a check valve of present technique into by four check valves of original technology.

Below accompanying drawing is further specified:

Fig. 1 is the air-cooled heat pump refrigerant system configurations schematic diagram of the existing plate type heat exchanger that uses.

Fig. 2 is the air-cooled heat pump refrigerant system configurations schematic diagram of plate type heat exchanger of the present utility model.

Below in conjunction with accompanying drawing the utility model embodiment is further described:

See Fig. 2, the utility model comprises compressor (1), cross valve (2), condenser (3), drier (4), visor (5), expansion valve (6), check valve (7), reservoir (8), evaporimeter (9), vapour liquid separator (10).Its connecting mode is compressor (1), cross valve (2), condenser (3), drier (6), visor (7), expansion valve (8), evaporimeter (10) in turn, and connects a reservoir (5) and a check valve (11) in expansion valve bypass to the boiler channel road.

The suitable son of the utility model house, villa, skyscraper divide the facets such as floor, locellus The long-pending use, have handsome in appearance, intensity is high, good stability, the characteristics such as convenient for installation and maintenance.

Claims

1. an air-cooled heat pump refrigeration system of using plate type heat exchanger is by compressor (1), cross valve (2), condenser (3), drier (6), expansion valve (8), check valve (11), reservoir (5), evaporimeter (9), vapour liquid separator (10), evaporimeter connects with cross valve respectively with vapour liquid separator, it is characterized in that order connects compressor, cross valve, condenser, drier, expansion valve, evaporimeter, vapour liquid separator, and connect reservoir and check valve at expansion valve to bypass between the evaporimeter, during refrigeration its running by compressor through cross valve (2), condenser (3), drier (6), expansion valve (8), evaporimeter (9), cross valve (2) is to vapour liquid separator (10); When heating its operational process by compressor (1), through cross valve (2), evaporimeter (9), reservoir (5), check valve (11), expansion valve (8), drier (6), condenser (3), cross valve (2) to vapour liquid separator.