CN2114794U

CN2114794U - Dry filter with gas liquid separating function

Info

Publication number: CN2114794U
Application number: CN 92202745
Authority: CN
Inventors: 潘启川
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-02-22
Filing date: 1992-02-22
Publication date: 1992-09-02

Abstract

The utility model relates to a dry filter with a gas liquid separating function, comprising an inner and an outer cylinder bodies. The inner part of the outer cylinder body is provided with filtering materials, and the top end is provided with an inlet and a heat exchanger tube which are respectively connected with a condenser and an expansion valve. The heat exchanger tube penetrates through the inner cylinder body to enter into the outer cylinder body and is communicated with the outer cylinder body, and the circumference of the heat exchanger tube in the inner cylinder body is provided with cooling ribs. The top end of the inner cylinder body is provided with the inlet ducts which are respectively connected with an evaporator and a compressor. Before the coolant enters the evaporator, the temperature of the coolant is reduced through the wall of the inner cylinder body and the heat exchanger tube; the running efficiency of the compressor can be improved, and the energy can be saved.

Description

Dry filter with gas liquid separating function

The utility model relates to a kind of device for drying and filtering with gas-liquid separation effect, particularly a kind of device for drying and filtering that is used in the automobile air system, and it can improve compressor efficiency and preferable cold air effect is provided.

Present automobile air system (referring to shown in Figure 3), mainly be by compressor 80, condenser 81, cooling fan 82, device for drying and filtering 83, expansion valve 84, blowing fan 85, elements such as evaporimeter 86 and gas-liquid separator 87 are formed, when cold gas system moves, be the gas that the compressed machine 80 of the refrigerant in the system pipeline is compressed into HTHP, reduced temperature via condenser 81 and become the high pressure low temperature shape, enter device for drying and filtering 83 again with after its contaminant filter, step-down through expansion valve 84 forms the liquid of low-temp low-pressure, enter expansion rapidly behind the evaporimeter 86 again, evaporation, a large amount of heats of drawing by air in the car of blowing fan 85 inspirations, this moment, refrigerant was the gas of high-temperature low-pressure, again through the certain separation of gas-liquid separator, be gas coolant in the compressor so that enter, the gas coolant that is HTHP after the compression of compressed machine is sent and is carried out periodic duty, to finish holistic cold gas system.

Because the compression of compressed machine forms the refrigerant of high pressure shape, must force the reduction temperature via condenser, again behind the contaminant filter via device for drying and filtering, form the heat absorption material of a utmost point low temperature at the evaporimeter place, to draw the heat of air in the car of blowing fan inspiration, and finish the purpose that reduces air themperature in the car, because only the cooling fan by condenser is forced cooling, its cooling-down effect is very limited, send into again in the device for drying and filtering that also is arranged in the preceding bonnet of car, because device for drying and filtering is arranged in the bonnet, so the temperature around it is subjected to the influence of high temperature in the bonnet extraneous for high, refrigerant after cooling this moment enters also will be higher because of ambient temperature in the device for drying and filtering, and can't effectively temperature be fallen really, so, will cause the cold air poor effect, compressor operation efficient is unclear, expend shortcomings such as the energy and member be more numerous and diverse.

Main purpose of the present utility model is: a kind of device for drying and filtering with gas-liquid separation effect is provided, its structure is made up of inside and outside cylindrical shell socket, wherein be provided with filtering material in the outer cylinder body, and inner barrel has the gas-liquid separation effect, one heat-exchange tube is run through inner barrel and the heat exchange tube wall in inner barrel is provided with fin, utilize inner core body wall and heat-exchange tube to carry out heat exchange action respectively to reach, can be reduced again so that enter the refrigerant temperature of evaporimeter, to improve the cold air effect and to reach the efficient that improves compressor.

Another purpose of the present utility model is: a kind of device for drying and filtering with gas-liquid separation effect is provided, it gives the socket combination because of outer cylinder body with dry filter effect and the inner barrel that has gas-liquid separation, can reduce employed the number of components really, and can save shared automotive interior space, and can simplify pipeline.

Device for drying and filtering with gas-liquid separation effect of the present utility model, its heat-exchange tube top at outer cylinder body is formed with observing window, the heat-exchange tube tube wall outer ring that is positioned at inner barrel is wound with the fin that can improve rate of heat exchange, inner barrel is connected in the top of outer cylinder body inside and leaves the space in the outer cylinder body bottom, for installation filtering material is set, heat-exchange tube runs through the below that the inner barrel bottom nozzle then is positioned at filtering material again, outer cylinder body is provided with inlet and is connected with the output of condenser, heat-exchange tube then is provided with outlet and is connected with the input of expansion valve, be provided with one again in the inner barrel and have the conduit of the mouth of pipe and the spill port that its bottom is provided with backflow usefulness, its outlet is connected with the input of compressor, and the set inlet of inner barrel opposite side then is connected with the output of evaporimeter.

Advantage of the present utility model is: because a large amount of heat releases of the refrigerant that can be flowed out by condenser in outer cylinder body and when passing through heat-exchange tube, by this secondary heat exchange will provide one more the liquid refrigerants of cryogenic condensation enter expansion valve and provide an overheated vaporizing refrigerant to enter in the compressor, really can improve the result of use of cold gas system, the inner barrel that will have the gas-liquid separation effect again and the outer cylinder body with dry filter effectiveness give special and establish, to reduce shared space, so really have initiative and practicality.

Further specify architectural feature of the present utility model and purpose below in conjunction with accompanying drawing.

Brief Description Of Drawings:

Fig. 1 is a cutaway view of the present utility model.

Fig. 2 is connected in the schematic diagram of cold gas system for the utility model.

Fig. 3 is for commonly using the cold gas system schematic diagram.

Referring to Fig. 1, shown in 2, the utility model is the device for drying and filtering of tool gas-liquid separation, its structure is made up of outer cylinder body 10 that is sealed shape and inner barrel 20, inner barrel 20 is positioned at the inside of outer cylinder body 10, the two also interconnects in the top, wherein the space of the inside positon of near bottom reservation of outer cylinder body 10 is horizontally set with a filtering material 11 with drying and impurity screening function, outer cylinder body 10 tops are provided with inlet 12, the top of inner barrel 20 is respectively equipped with inlet 21 and conduit 22, these conduit 22 1 ends that are J-shaped are connected with outlet 23, but the mouth of pipe 222 cooling matchmakers of the other end enter, and positon of near bottom is provided with the spill port 221 that oil return is used.Outer cylinder body 10 is provided with heat-exchange tube 13 in central authorities again, this heat-exchange tube 13 also runs through inner barrel 20, one end head is positioned at outer cylinder body 10 set filtering material 11 belows and locates, this heat-exchange tube 13 is positioned at one section of inner barrel 20 around being provided with the fin 131 with high heat-conducting effect, and is provided with observing window 14 in the top and is connected with outlet 15.

Cooperate again referring to shown in Figure 2, the utility model is that the outer cylinder body 10 set inlets 12 with device for drying and filtering are connected with the output of condenser 40,15 inputs with expansion valve 50 of the outlet of its other end are connected, can store refrigerant and drying and impurity screening and the moisture content usefulness that condenser 40 is cooled off by outer cylinder body 10 and set filtering material 11, the inlet 21 of inner barrel 20 is to be connected with the output of evaporimeter 60 again, and another outlet 23 then is connected with the input of compressor 30.Design the separable liquid coolant of mixing in vaporizing refrigerant that oozes by this, so, total system then is back to compressor 30 again for compressor 30, condenser 40, outer cylinder body 10, expansion valve 50, evaporimeter 60, inner barrel 20, and a circulatory system is cascadedly combined.

By above-mentioned Combination Design, the liquid coolant temperature that is flowed into outer cylinder body 10 by condenser 40 will be high than flowing into the refrigerant temperature that does not evaporate fully in the inner barrel 20 by evaporimeter 60, therefore, the liquid coolant that is stored in the outer cylinder body 10 will be emitted heat energy in a large number, and be that the evaporation refrigerant that flows in the inner barrel 20 absorbs in the barrel place, can more positively reach the form of liquefaction fully to reach the refrigerant that is stored in outer cylinder body 10; In addition, the liquefaction refrigerant that will be positioned at outer cylinder body 10 bottoms by heat-exchange tube 13 is exported to expansion valve 50, refrigerant is after process runs through the heat-exchange tube 13 of inner barrel 20, because of the tube wall of heat-exchange tube 13 and the fin 131 that is provided with in tube wall with big heat-conducting area, the refrigerant temperature that enters expansion valve 50 can be forced reduction again, to improve refrigerant in the endothermic effect at evaporimeter 60 places.Therefore, utilize auxiliary heat dissipation effect of the present utility model, can make the heat radiation situation of automobile air system obtain sizable improvement, reduce condensing pressure, the refrigerant that flows into compressor 30 simultaneously makes the deposit liquid refrigerant that does not evaporate fully in the inner barrel 20 can absorb heat effectively fully by after the gasification via gas-liquid separation effect of the present utility model, is passed back in the compressor 30 by outlet 23 behind the mouth of pipe 222, improving its compression efficiency, and reduce the power of required consumption.

Claims

1, a kind of device for drying and filtering with gas-liquid separation effect, its structure is to be formed with observing window on the heat-exchange tube top of outer cylinder body, the heat-exchange tube tube wall outer ring that is positioned at inner barrel is wound with the fin that can improve rate of heat exchange, it is characterized in that: inner barrel is connected in the top of outer cylinder body inside and leaves the space that filtering material is set for installing in the outer cylinder body bottom, heat-exchange tube runs through the below that the inner barrel bottom nozzle then is positioned at filtering material, outer cylinder body is provided with the inlet that is connected with the output of condenser, heat-exchange tube then is provided with the outlet that is connected with the input of expansion valve, be provided with one again in the inner barrel and have the conduit of the mouth of pipe and the spill port that its bottom is provided with backflow usefulness, its outlet is connected with the input of compressor, and the inner barrel opposite side is provided with the inlet that is connected with the output of evaporimeter.