Three machine integrated devices of freezing type compressed-air drier
Technical field
The utility model relates to the air drying equipment field, especially precooling, evaporation and gas-liquid separation integral type freezing type compressed-air drier.
Background technology
Air dryer is used for drying and purification of compressed air, makes subsequent compression air use equipment obtain the source of the gas of clean dried, is widely used in industrial production.The freezing type compressed-air drier is to utilize the refrigerant heat exchange that the compressed air of humidity is lowered the temperature, and oversaturated moisture content is separated out from air and separated, thereby realizes the drying of air, generally comprises forecooler, evaporimeter and three main parts of gas-liquid separator.
The forecooler 200 of prior art and the evaporimeter 300 general heat exchanger structures that adopt shell-tube type, as shown in Figure 1, warm-humid air 101 feeds the many heat exchanger tube that be arranged in parallel 204 inside from the warm-humid air inlet 201 of forecooler housing 203 1 sides, do heat exchange with the low temperature drying air 104 of housing inner chamber and realize precooling, air 102 concentrates on after the precooling air chamber 207 and enters evaporimeter 300 after the precooling; Low temperature drying air 104 feeds inner chamber from the cool air inlet 206 of forecooler housing 203 opposite sides, and complications are advanced under the effect of housing inner chamber polylith deflection plate 205, and discharging from dry air outlet 202 after the heat exchange is dry air 105.Entering after the precooling of evaporimeter 300 air 102 continues to walk around deflection plate 302 complications at evaporator shell 301 inner chambers and advances, and this moment heat exchanger tube 303 inner logical be refrigerant 106, freon etc. for example further cools off the back to air after the precooling 102 and forms Cryogenic air 103 and export gas-liquid separator 400 to from Cryogenic air outlet 304.
The gas-liquid separator 400 of prior art adopts the cyclone separating structure usually, as shown in Figure 2, housing 403 side wall upper part at columniform pressure vessel are provided with tangential air inlet pipe 401, the top is provided with gas outlet 402, the bottom is provided with discharge outlet 405, the Cryogenic air 103 that has liquid particles after the cooling tangentially pours from pressure vessel, in container, form the air-flow of rotation at a high speed, because gas is different with density of liquid, therefore discharge outlet 405 is flowed out in the heavier separated sinking of liquid, and the gaseous disk after the dehydration screws off and falls the back and rise along central authorities in the turning to back at the bottom awl end 404, discharge low temperature drying air 104 by center tube and gas outlet, enter the cool air inlet 206 of forecooler 200 again, warm-humid air 101 is carried out precooling.
Three main parts forecooler, evaporimeter and gas-liquid separators of the freezing type compressed-air drier of prior art are independent separately, and volume is very huge, production cost height, installation and maintenance complexity.The heat exchanger effectiveness of shell and tube exchanger structure is low, and the gap between dividing plate and the housing causes the air-flow short circuit easily, has had a strong impact on the efficient of heat exchange.The cyclone type gas-liquid separator is difficult for isolating the less mist pearl of quality in the air-flow, has also reduced dry efficient.
The utility model content
The applicant is independent separately at forecooler, evaporimeter and the gas-liquid separator of above-mentioned existing freezing type compressed-air drier, complex structure, take up an area of shortcomings such as the space is big, inefficiency, a kind of three machine integrated devices of rational in infrastructure, freezing type compressed-air drier that the space is compact are provided, thereby reduction manufacturing cost, save the installation and maintenance expense, effectively improve dry operating efficiency simultaneously.
The technical scheme that the utility model adopted is as follows:
A kind of three machine integrated devices of freezing type compressed-air drier comprise forecooler, evaporimeter and gas-liquid separator, and described forecooler, evaporimeter and gas-liquid separator are integral structure, and the forecooler top is provided with warm-humid air import and diffusion chamber; Forecooler and evaporimeter adopt whole heat exchanger, and described heat exchanger top is precooling portion, and the bottom is the evaporation part; Described heat exchanger has horizontal channel and Vertical Channel, and described Vertical Channel is the warm-humid air passage, and described precooling portion horizontal channel is the low temperature drying air duct, and horizontal channel, described evaporation part is a refrigerant passage; Gas-liquid separator is arranged at base of evaporator, form by filter screen and deflector apron chamber two parts, the deflector apron chamber be provided with oblique flow-stopping plate with air guide to the sidepiece pipeline, the sidepiece pipeline connects described precooling portion horizontal channel inlet, and the horizontal channel outlet is provided with the dry air outlet in described precooling portion.It is further characterized in that:
Described heat exchanger adopts the sheet metal of staggered continuously trapezoidal channel to pile up, and the adjacent layer trapezoidal channel is vertical mutually and with dividing plate at interval;
The sheet metal of described heat exchanger adopts aluminium panels;
Described filter screen adopts stainless steel filtering net;
Described freezing type compressed-air drier bottom is provided with discharge outlet.
The utility model adopts precooling, evaporation and gas-liquid separation integral structure, reduced equipment volume greatly, for same dry air capacity, volume of the present utility model only be prior art separately the absolute construction volume 2/5, thereby the reduction manufacturing cost is saved the installation and maintenance expense.Forecooler and evaporimeter adopt whole cellular heat exchanger, not only significantly improved heat exchange efficiency, and can effectively prevent the air-flow short circuit, dew-point temperature effectively improves, power consumption reduces greatly, JB/T10526-2005 " generally using the freezing type compressed-air drier " standard code outlet pressure dew point is not more than 3 ℃, and the utility model reaches about 2.1 ℃; Standard code pressure falls and is not more than 0.035MPa, and the utility model only is 0.0024MPa.Gas-liquid separator is made up of filter screen and deflector apron chamber two parts, and the comprehensive multiple means such as interception, inertia that adopt are effectively tackled the tiny globule and mist pearl, and the rate that dewaters is greater than 98%.
Description of drawings
Fig. 1 is the forecooler and the evaporimeter front view of prior art;
Fig. 2 is the gas-liquid separator front view of prior art;
Fig. 3 is a front view of the present utility model, broken section;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is a cellular heat exchanger stereogram of the present utility model;
Fig. 6 is that explosive view amplifies in the A portion of Fig. 5.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model and operation principle are described.
As shown in Figure 3, Figure 4, freezing type compressed-air drier described in the utility model adopts precooling, evaporation and gas-liquid separation integral structure, and dryer shell inside is divided into a plurality of cavitys, and inside connects by pipeline; Be provided with warm-humid air import 9 and diffusion chamber 1 at the drier top, warm-humid air 101 enters from import 9, even diffusion profile enters the precooling chamber 2 and evaporation cavity 3 of diffusion chamber 1 bottom in diffusion chamber 1, in precooling chamber 2 and evaporation cavity 3, be provided with cellular heat exchanger 10 as shown in Figure 5, it is continuously the staggered trapezoidal city wall crenel shape that is similar to through punch process that cellular heat exchanger 10 adopts aluminum plate material 15 as shown in Figure 6, adopt dividing plate 13 bonding in the both sides up and down of aluminum plate material 15, thereby formed multiplexer channel 11 with trapezoidal top margin; The mutual vertical stacking of the trapezoidal channel of each layer, thus form as shown in Figure 5 apart from one another by and vertical multichannel horizontal channel 11 and Vertical Channel 12, the materials that feed different temperatures in horizontal channel 11 and the Vertical Channel 12 carry out heat exchange.As shown in Figure 3, heat exchanger 10 is an overall structure, and the precooling function is carried out on top, and vaporization function is carried out in the bottom; What circulate in heat exchanger 10 horizontal channels 11 in the precooling chamber 2 is low temperature drying air 104, Vertical Channel 12 inner tops enter warm-humid air 101, enter the Vertical Channel 12 of evaporation cavity 3 interior heat exchangers 10 for air 102 after the precooling through cooling after the heat exchange, what circulate in heat exchanger 10 horizontal channels 11 in the evaporation cavity 3 is refrigerant 106, and air after the precooling 102 further is cooled to Cryogenic air 103.Be provided with gas-liquid separator in evaporation cavity 3 bottoms, gas-liquid separator is made up of stainless steel filtering net 4 and deflector apron chamber 5 two parts, oversaturated moisture content is separated out and is the fine globule in the Cryogenic air 103, most of globule is tackled by filter screen by stainless steel filtering net 4 time, condenses on the filter screen and is settled down to the drier bottom; Minute quantity is mixed in the Cryogenic air 103 by the mist pearl of filter screen 4, impact is on the oblique flow-stopping plate 7 of deflector apron chamber, bottom 5 settings, air is diverted to the tortuous outflow in right side under the guiding of flow-stopping plate 7, and the mist pearl since quality greater than gas, therefore remain on the flow-stopping plate 7 and be settled down to the drier bottom, the moisture content that is deposited on the drier bottom is discharged by discharge outlet 6; Low temperature drying air 104 is directed to by flow-stopping plate 7 that sidepiece pipeline 14 rises and the horizontal channel 11 by precooling chamber 2 interior heat exchangers 10, warm-humid air 101 in the Vertical Channel 12 is carried out precooling, the final dry air 105 that forms is discharged by dry air outlet 8, enters the subsequent compression air and uses equipment.
More than describing is to explanation of the present utility model, it or not qualification to utility model, the utility model institute restricted portion is referring to claim, under the situation of the utility model spirit, the utility model can be done any type of modification, and other heat conductivilitys such as for example cellular heat exchanger employing copper sheet material are material preferably.