CN206572794U

CN206572794U - A kind of cold air-cooled screw unit for carrying out cooling and warming of application evaporation

Info

Publication number: CN206572794U
Application number: CN201720254346.3U
Authority: CN
Inventors: 白俊明; 于鑫森; 孙伟峰; 柴春亮
Original assignee: Shandong Grad Group Co Ltd
Current assignee: Shandong Grad Group Co Ltd
Priority date: 2017-03-16
Filing date: 2017-03-16
Publication date: 2017-10-20
Anticipated expiration: 2027-03-16

Abstract

The utility model is related to a kind of cold air-cooled screw unit for carrying out cooling and warming of application evaporation, including evaporates cold, compressor set and evaporator, it is characterised in that：The described cold and evaporator of evaporation is connected by the input side of four-way valve and compressor, outlet side, the input side of compressor is also connected provided with gas-liquid separator, cold the first check valve, reservoir, filter, the second check valve and the refrigeration expansion valve of also passing sequentially through of described evaporation is connected with evaporator, described evaporation is cold also to be connected by the input of the 3rd check valve and reservoir, and the output end of filter also passes sequentially through the 4th check valve, heats expansion valve with evaporating cold connection；The utility model reasonable in design, by the structure using evaporate it is cold realize a kind of cooling in summer, winter heating air-conditioner set, when solving to be used to freeze, heat, it is high for water chiller initial cost, the problem of for air-cooled unit high energy consumption, the effect of evaporation endothermic when condensation is radiated, heated when solving refrigeration.

Description

A kind of cold air-cooled screw unit for carrying out cooling and warming of application evaporation

Technical field

The utility model is related to cooling and warming technical field, more particularly to a kind of cold wind for carrying out cooling and warming of application evaporation Cold Screw chiller.

Background technology

Existing evaporation is cold to be served only for refrigeration, and for that can produce the air-conditioner set of hot and cold water, as water cooling water source, Source, heat source side needs well-digging recharge or pipe laying, and initial cost is high, also has recharge risk for water source, causes to waste groundwater resources Situation；For air-cooled screw unit, condensation temperature is high during refrigeration, high energy consumption.It is cold relative to evaporation to be unfavorable for energy-conserving and environment-protective.

The content of the invention

In order to solve deficiency of the prior art, the purpose of this utility model is that providing a kind of application evaporates cold made The cold air-cooled screw unit heated.

The utility model solves the technical scheme that its technical problem used：

A kind of cold air-cooled screw unit for carrying out cooling and warming of application evaporation, including the cold, compressor set of evaporation and evaporator, Compressor set by compressor, four-way valve, check valve, expansion valve, filter, copper pipe of reservoir group into, it is characterised in that：Described evaporation Cold and evaporator is connected by described four-way valve with input side, the outlet side of described compressor, the input side of compressor Also series connection is provided with gas-liquid separator, and described evaporation is cold also to pass sequentially through the first check valve, reservoir, filter, second unidirectional Valve and refrigeration expansion valve are connected with evaporator, and described evaporation is cold also to be connected by the input of the 3rd check valve and reservoir, The output end of filter also passes sequentially through the 4th check valve, heats expansion valve with evaporating cold connection.

In summary, the beneficial effects of the utility model are：Reasonable in design, is realized by the structure using evaporation is cold A kind of cooling in summer, the air-conditioner set of winter heating, it is high for water chiller initial cost when solving to be used to freeze, heat, it is right The problem of air-cooled unit high energy consumption, the effect of evaporation endothermic when condensation is radiated, heated when solving refrigeration.

Brief description of the drawings

The utility model is further illustrated with reference to the accompanying drawings and examples.

Fig. 1 is structural representation of the present utility model.

Structural representation when Fig. 2 heats for the utility model.

Fig. 3 is structural representation when the utility model freezes.

In figure：Cold, 4 compressors, 5 four-way valves, 6 gas-liquid separators, 7 reservoirs, 8 are evaporated in 1 compressor set, 2 evaporators, 3 Filter, 9 second check valves, 10 refrigeration expansion valves, 11 the 3rd check valves, 12 the 4th check valves, 13 heat expansion valve, 14 first Check valve.

Embodiment

Embodiment of the present utility model is illustrated by particular specific embodiment below, those skilled in the art can be by this Content disclosed by specification understands other advantages of the present utility model and effect easily.

As shown in Figure 1：A kind of cold air-cooled screw unit for carrying out cooling and warming of application evaporation, including evaporate cold 3, compressor Group 1 and evaporator 2, compressor set 1 are made up of compressor 4, four-way valve 5, check valve, expansion valve, filter 8, reservoir 7, its Described in evaporation cold 3 and evaporator 2 pass through the input side of described four-way valve 5 and described compressor 4, outlet side and connect Connect, according to freezing, heating state, change the connected relation of inside by four-way valve 5, the input side of compressor 4 is also connected provided with gas Liquid/gas separator 6；Described evaporation cold 3 also passes sequentially through the first check valve 14, reservoir 7, filter 8, the second check valve 9 and system Cold expansion valve 10 is connected with evaporator 2, is mainly used in current refrigeration operation；Described evaporation cold 3 also passes through the 3rd check valve 11 are connected with the input of reservoir 7, the output end of filter 8 also pass sequentially through the 4th check valve 12, heat expansion valve 13 with Cold 3 connection is evaporated, by the 3rd check valve 11, the 4th check valve 12 and two groups of bypass connecting pipes that expansion valve 13 is constituted are heated Road is used cooperatively with original pipeline, is mainly used in current heating operation.

A kind of operation principle of the cold air-cooled screw unit for carrying out cooling and warming of application evaporation：

As shown in Figure 2：During refrigeration, evaporation cold 3 is using water and air as cooling medium, mainly by condensation fan, moisture disposition System, heat exchanger, PVC fillers heat exchange layers and water circulating pump are constituted, the high-temperature gas of cooling medium and its heat exchanger internal circulation Refrigerant carries out heat exchange, and refrigerant is changed into HTHP liquid from high pressure gaseous；The high pressure gaseous that compressor 4 is discharged Refrigerant enters the heat exchanger of evaporation cold 3 from top, and liquid refrigerants flows out from exchanger base after condensation；Cooling water is in circulation simultaneously Water pump effect is lower to reach water distribution system, and cooling water is uniformly covered on heat exchanger surface under axial flow blower effect, with air Fully exchanged heat, cooling water is raised with temperature after air heat-exchange, part cooling water steam raising takes away amount of heat, by axle Flow fan brings air into；Unevaporated water is diverted into heat exchange layers, is flowed through air and takes away heat and is allowed to cool, into collecting-tank In, then through water pump enter water distribution system, continue cycling through.

As shown in Figure 3：When heating, changed inside compressor set 1 by four-way valve 5, high-temperature gas refrigerant enters evaporation The heat release of device 2, while producing hot water, feeding water tank is met customer need；It is changed into liquid after refrigerant heat release, by heating expansion valve 13 Expansion is changed into vaporific low-temp low-pressure with evaporating cold 3 heat exchange, and gaseous state is changed into after heat exchange, returns to compressor 4 and completes a circulation；Now Because environment temperature is relatively low, evaporates cold 3 and exchanged heat with blower fan heat exchanger, water pump preventing freezing out of service.

Preferred embodiments of the present utility model are the foregoing is only, as long as realizing the utility model with essentially identical means Purpose technical scheme, belong within protection domain of the present utility model.

Claims

1. a kind of cold air-cooled screw unit for carrying out cooling and warming of application evaporation, including evaporate cold, compressor set and evaporator, pressure Contracting unit by compressor, four-way valve, check valve, expansion valve, filter, copper pipe of reservoir group into, it is characterised in that：Described evaporation is cold It is connected with evaporator by described four-way valve with input side, the outlet side of described compressor, the input side of compressor is also Series connection is provided with gas-liquid separator, and described evaporation is cold also to pass sequentially through the first check valve, reservoir, filter, the second check valve It is connected with refrigeration expansion valve with evaporator, described evaporation is cold also to be connected by the input of the 3rd check valve and reservoir, mistake The output end of filter also passes sequentially through the 4th check valve, heats expansion valve with evaporating cold connection.