CN2722172Y

CN2722172Y - Spray falling-film evaporating air cooler

Info

Publication number: CN2722172Y
Application number: CN 200420087780
Authority: CN
Inventors: 余国海; 张宜万
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-08-18
Filing date: 2004-08-18
Publication date: 2005-08-31
Anticipated expiration: 2014-08-18

Abstract

The utility model relates to a spray falling-film evaporating air cooler, which is characterized in that the air inlet, the heat exchanger, the sprayer, the defogger, the exhaust fan and the air outlet of the spray falling-film evaporating air cooler are arranged transversally; adopting the horizontal arrangement installation means, the exhaust fan is arranged at the lateral part of the utility model; the tilting device of the heat exchanger and the technology medium channel of the heat exchanger are connected with a fin; an inserter is also arranged in a technology medium pipeline to form a turbulent flow to increase the heat transfer effect in the technology medium pipeline; baffle plates and stainless steel screens are spaced to be arranged to form the two stages of defogging structures of the defogger. The above structure characteristics cause the utility model to be stacked top and bottom or to be arranged front and back in parallel. The floor area is reduced, the maintenance is convenient, the heat transfer is effectively strengthened, and the modularization manufacture and the modularization installation can be realized. The spray falling-film evaporating air cooler can be widely used to cool various technology heat media in every industrial field.

Description

Spray falling film evaporation formula aerial cooler

(1) technical field: the utility model relates to the aerial cooler that is used to cool off various process heat media, is specially spray falling film evaporation formula aerial cooler.

(2) background technology: spray falling film evaporation formula aerial cooler adopts inexhaustible air to replace water to remove to cool off various processing mediums, can be used widely at numerous industrial circles.For example be used for the cooling of the process fluid of chemical industry and petrochemical industry, be used for the cooling or the like of pure water of the closed-cycle system of melting stove.The patent No. is that 96200559.2 Chinese patent discloses a kind of spraying and sprinkling evaporation type aerial cooler, and it comprises water tank, air inlet, light pipe tube bank, spray equipment, demister, exhaust blower and exhaust outlet.Water in the water tank injects spray equipment through circulating pump and down sprays, and forms falling liquid film in the light pipe tube bank, and hot processing medium to be cooled flows in the light pipe tube bank.Under fan action, air stream, is discharged through blower fan from lower to upper through light pipe tube bank and demister from air inlet.Wherein the light pipe tube bank is heat exchanger, and hot processing medium is wandering warm to above-mentioned air by the tube wall of light pipe, and air stream quickens the evaporation of spray falling liquid film again, greatly quickens processing medium heat transfer outside pipe, thus by the hot processing medium in the air stream cooling pipe.The technical characterictic of above-mentioned patent is the top that exhaust blower is located at light pipe tube bank (heat exchanger) in the aerial cooler, and air stream flows from bottom to top, and the air intake direction is vertical with air-out direction.Heat exchanger, spray equipment, demister, exhaust blower and exhaust outlet adopt vertical arrangement.There is the shortcoming of two aspects in this structure: the one, and maintenance is inconvenient, in the time will overhauling light pipe tube bank (heat exchanger), will dismantle heavy exhaust blower, demister etc. earlier, the effort of taking a lot of work; The 2nd, blower fan is located at the top of aerial cooler, can't be with many upper and lower stack devices of aerial cooler, can only be horizontally disposed, and floor space is big.

(3) summary of the invention: for improving above-mentioned shortcoming, the utility model provides another spray falling film evaporation formula aerial cooler, and it overhaul and makes things convenient for, can by about, the front and back stack device, save the area, and have higher cooling effectiveness.

The technical solution of the utility model is as follows:

It comprises water tank, air inlet, heat exchanger, spray equipment, demister, exhaust blower and exhaust outlet, be characterised in that described air inlet, heat exchanger, spray equipment, demister, exhaust blower and exhaust outlet are transversely arranged, adopt horizontal layout mounting means, exhaust blower is installed on the sidepiece of spray falling film evaporation formula aerial cooler, and the air intake direction of air inlet parallels with the air-out direction of exhaust outlet; Described heat exchanger tilting gearing, heat exchanger is from the horizontal by 0～45 degree angle device; Spray piping in the described spray equipment and described heat exchanger parallel device; Described demister is made of water fender and the alternate device of silk screen, the relative air-out direction tilting gearing of water fender, and screen apparatus is between two adjacent water fenders; Described heat exchanger comprises the processing medium pipe row that connected by longitudinal fin, and each processing medium pipe is listed as sealed at both ends connection bobbin carriage; Perhaps described heat exchanger is constructed as follows: it comprises processing medium passage and cooling air channel, both alternately, the sealed at both ends connection bobbin carriage of each processing medium passage installs fin respectively in processing medium passage and cooling air channel; Perhaps described heat exchanger is constructed as follows: it comprises the processing medium pipeline, and the processing medium pipe ends bobbin carriage that is tightly connected connects fin between each processing medium pipeline.

Because heat exchanger, spray equipment, demister, exhaust blower and exhaust outlet adopt horizontal mounting means in the utility model, exhaust blower is installed on the sidepiece of spray falling film evaporation formula aerial cooler, installation of many playscripts with stage directions utility model stacked on top and front and back can be installed side by side thus.The utility model can be designed and manufactured into Modular units,, become the building block system splicing when plurality of modules unit is installed, reduce and take up an area of according to user's different requirements.Modular unit standardized designs and manufacturing can be improved the quality of products, and reduce production costs.Each critical piece adopts horizontal installation in the utility model, and maintenance is convenient, when for example overhauling heat exchanger, does not need to dismantle the parts that blower fan, demister etc. needn't overhaul from top to bottom, can directly overhaul parallel operation.The processing medium pipeline connects fin, and efficient hardening conducts heat.

(4) description of drawings:

Fig. 1 is a structure chart of the present utility model;

Fig. 2 is the structural map of heat exchanger in the utility model;

Fig. 3 is the A-A cut-away view of Fig. 2;

Fig. 4 is second kind of structural map of heat exchanger in the utility model;

Fig. 5 is the B-B cut-away view of Fig. 4;

Fig. 6 is the third structural map of heat exchanger in the utility model;

Fig. 7 is the C-C cut-away view of Fig. 6.

(5) specific embodiment:

See Fig. 1, lower device of the present utility model is equipped with water tank 10, and water tank is connected with circulating pump 12 by pipeline, and circulating pump 12 is connected with spray piping 18 by the pipeline that has flow valve, and 19 is the nozzle on the pipeline 18, so constitutes spray equipment.See Fig. 1, demister of the present utility model is made of water fender 16 and silk screen 17 alternate devices, and silk screen 17 is installed between the two adjacent water fenders 16.

See Fig. 1, the water fender 16 of air inlet 5 of the present utility model, heat exchanger 4, shower 18, demister and silk screen 17, exhaust blower 15 and exhaust outlet 14 are transversely arranged, adopt horizontal mounting means.Exhaust blower 15 is positioned at sidepiece of the present utility model, so makes the air intake direction of air inlet 5 and the air-out direction of exhaust outlet 14 be parallel to each other.For adapting to the lateral flow of air stream, heat exchanger 4 is in tilted layout and installs, and promptly the processing medium pipeline in the heat exchanger 4 tilts to install, from the horizontal by 0～45 degree angle.Adapt to it, spray piping 18 and heat exchanger 4 parallel devices in the spray equipment are to guarantee heat exchanging device spray evenly.A, B represent respectively to flow into and the direction of the air stream of outflow heat exchanger among Fig. 1.As can be seen from Fig. 1, the water fender 16 relative air-out direction B tilting gearings of demister, can keep off most of evaporation steam, for preventing to flow into exhaust blower 15 space of part steam between two adjacent water fenders 16, at this gap device silk screen 17, the best is a stainless steel cloth, constitute the two-stage Defrosting structure, the demist efficiency eta effectively improves, η 〉=98%, air exhaust resistance loss Δ P≤90 handkerchiefs.3 and 2 processing medium inflow entrance and the flow exports that are respectively in the heat exchanger 4 among Fig. 1.

The different embodiment of heat exchanger 4 structures in Fig. 2, Fig. 4, Fig. 6 difference presentation graphs 1.Wherein Fig. 2 is a longitudinal fin tubular type structure, and it is as most preferred embodiment.See Fig. 2 and Fig. 3,20 steel pipes for the circulation of heat supply attitude processing medium, the steel pipe 20 of some is vertically arranged, between connect with vertical steel fin 21, the axially parallel of fin face and pipeline 20 can adopt welding procedure to connect, and becomes the pipe row of flow-through process medium pipeline 20.A series of described pipe row are formed heat-exchanging part, and the two ends of the pipeline 20 of each Guan Liezhong bobbin carriage 22,23 that is tightly connected respectively can adopt the expanded joint mode to connect.Establish the inflow entrance 3 and the flow export 2 of processing medium on the bobbin carriage 22, between with dividing plate sealed separation (seeing the dotted line in the bobbin carriage 22).Fig. 2 adopts longitudinal fin to connect into the pipe row of processing medium pipeline 20, and the axially parallel of fin face and pipeline 20 helps forming the spray falling liquid film and organizing air draught, increase heat transfer area, and manufacturing process is simple, and cost performance is excellent.Can also add insert (not drawing among the figure) in each pipeline 20, for example steel spirality insert etc. to form turbulent flow in the pipe, increases the intraductal heat transfer effect.The quantity of pipe row and adding insert situation according to user's heat exchange service condition, are carried out the engineering calculation decision among Fig. 2.

Heat exchanger shown in Figure 4 is a plate-fin structure.See Fig. 4 and Fig. 5, it comprises aluminium sheet material processing medium passage 27 and cooling air channel 25, and both alternately.Each processing medium passage 27 sealed at both ends connection bobbin carriage 24 and 30 can adopt welding manner to connect.Install aluminium matter inner fin 28 and outer fin 26 in processing medium passage 27 and cooling air channel 25 respectively, inner fin 28 can increase the turbulent flow of processing medium, and outer fin 26 can increase the area that sprays falling liquid film, reaches the effect of heat and mass transfer enhancement jointly.29 is the end socket of passage 27 upper/lower terminals among Fig. 5, and Fig. 4 right lower quadrant is to cut open cuing open of local end socket 29 to show the district.

Heat exchanger shown in Figure 6 is the structure that connects fin on the basis of existing plain tube bank.See Fig. 6 and Fig. 7, the two ends of each processing medium pipeline 30 be tightly connected respectively

bobbin carriage

31 and 33 connect with expanding joint method.Connect steel fin 32 between each processing medium pipeline 30.For increasing the heat-transfer effect within the pipeline 30, also can add insert, its specific requirement adds the described situation of insert and requires identical with Fig. 2 pipeline 20.

The utility model course of work is as follows: pump 12 pumps into shower 18 with the water in the water tank 10, spray into heat exchanger 4 through nozzle 19, the outer wall of the processing medium pipeline of heat exchanger 4 and outside form the spray falling liquid film on the fin, meanwhile, blower fan 15 air drafts, air sucks through suction inlet 5, the flow through air duct of heat exchanger, falling liquid film on processing medium channel outer wall and the fin is quickened evaporation, and the steam demister demist of flowing through is discharged from exporting 14.Hot processing medium fluid 3 flows into from entering the mouth, and its heat imports air-flow in the air flow channel into via conduction of passage tube wall and falling film evaporation augmentation of heat transfer mode, rely on the air cooling after, flow out from flow export 2.Air suction inlet 5 is equipped with flow deflector among Fig. 1, and 1 is shell, and 6 is the water tank overflow mouth, and 7 is the automatic water supplement mouth, and 8 are the dosing mouth of water quality management, and 9 are the blowdown dewatering outlet, and 11 is electric cabinet, and 13 is door.

Claims

1. spray falling film evaporation formula aerial cooler, comprise water tank, air inlet, heat exchanger, spray equipment, demister, exhaust blower and exhaust outlet, be characterised in that described air inlet, heat exchanger, spray equipment, demister, exhaust blower and exhaust outlet are transversely arranged, adopt horizontal layout mounting means, exhaust blower is installed on the sidepiece of spray falling film evaporation formula aerial cooler, and the air intake direction of air inlet parallels with the air-out direction of exhaust outlet.

2. by the described spray falling film evaporation of claim 1 formula aerial cooler, it is characterized in that described heat exchanger tilting gearing.

3. by the described spray falling film evaporation of claim 2 formula aerial cooler, it is characterized in that described heat exchanger is from the horizontal by 0 ~ 45 degree angle device.

4. by claim 1 or 2 described spray falling film evaporation formula aerial coolers, it is characterized in that spray piping and described heat exchanger parallel device in the described spray equipment.

5. by the described spray falling film evaporation of claim 1 formula aerial cooler, it is characterized in that described demister is made of water fender and the alternate device of silk screen, the relative air-out direction tilting gearing of water fender, screen apparatus is between two adjacent water fenders.

6. by claim 1 or 2 described spray falling film evaporation formula aerial coolers, it is characterized in that described heat exchanger comprises the processing medium pipe row that connected by longitudinal fin, each processing medium pipe is listed as sealed at both ends connection bobbin carriage.

7. by claim 1 or 2 described spray falling film evaporation formula aerial coolers, it is characterized in that described heat exchanger is constructed as follows: it comprises processing medium passage and cooling air channel, both alternately, the sealed at both ends connection bobbin carriage of each processing medium passage installs fin respectively in processing medium passage and cooling air channel.

8. by claim 1 or 2 described spray falling film evaporation formula aerial coolers, it is characterized in that described heat exchanger is constructed as follows: it comprises the processing medium pipeline, and the processing medium pipe ends bobbin carriage that is tightly connected connects fin between each processing medium pipeline.