CN203249521U - Plate-type wet air cooler - Google Patents

Abstract

A plate-type wet air cooler comprises an air conditioning system, a heat exchanging system and a spraying system. The plate bundle of the heat exchanging system is mainly formed by stepped corrugated plates and inserts. Every two stepped corrugated plates are buckled oppositely, long sides of the stepped corrugated plates are welded, and formed plate cavities or plate pipes work as channels for circulation of hot media. Every two plate pipes are overlaid, the two adjacent short edges of the plate pipes are welded, the inserts are welded on corner angle positions, and formed plate cavities work as channels for circulation of air. The heat transmitting plate bundle of the plate-type wet air cooler is formed by the stepped corrugated plates, the stepped corrugated plates are made of stainless steel, titanium plates and other materials, heat exchange performance of the air cooler is reinforced, and meanwhile the plate-type wet air cooler has good use performance of being corrosion resistant, high temperature resistant and high pressure resistant.

Description

Board-like wet air cooler

Technical field

The utility model belongs to equipment manufacturing technology field, is specifically related to a kind of heat exchanger, particularly relates to a kind of board-like wet air cooler.

Background technology

Board-like wet air cooler is a kind of present in the world air cooling product of advanced person, is widely used in the cooling of the industry low-temperature end media such as oil, petrochemical industry.Patent CN01201689.6 is first platen type air cooler in the world, has epoch-making meaning.The limitation that has based on primary product, the same existence of this patent such as the easy ponding of workbench, nozzle easily stop up, spray not enough, the many defectives such as the air humidification performance is bad, heat exchange property is poor, plate bundle non-refractory, high pressure of globule atomizing, make troubles for the operation and maintenance of air cooler.Particularly outstanding is the obstruction of nozzle, makes plate air cooler lose the original intention of cooling off as wet type air, makes wet air cooler become dry air cooled heat exchanger.

The wet air cooling of spray air cooling has the advantage of saving water resource relatively.In order to reach best reduction effect, shower water will reclaim usually, and is recycling.Because water tank upper is coated with screen pack, so the house refuses such as large stretch of shredded paper, polybag are difficult to enter water tank.Be the impurity of the less graininess of particle diameter, needle-like on the contrary, comprise that welding slag, iron that deadwood and rotten leaf, sandstone earth and production process produce are cut all might enter water tank that these impurity particles all can cause the obstruction of spray pipe and nozzle.As seen as wet air cooler, the critical process of board-like wet air cooler is the filtration of water quality.

The performance of board-like wet air cooler heat exchange property, except outside the Pass the humidity with air that spray system produces has, also and the plate of composing plate bundle vital effect is arranged.The heat conduction of plate, anticorrosive, high temperature resistant, normal operation that high voltage performance all affects board-like wet air cooler.As seen as heat transmission equipment, the core parts of board-like wet air cooler are the plate bundle.

The utility model content

The purpose of this utility model is to provide the board-like wet air cooler that a kind of heat transfer property is good, can normally move under high temperature, high pressure.

The technical scheme that the utility model adopts:

A kind of board-like wet air cooler comprises air-conditioning system, heat-exchange system, spray system; The plate bundle of described heat-exchange system mainly by the staircase waveform card, inserting consists of.The limit is grown in twos described staircase waveform card make-up, welding, and formed plate chamber or plate pipe consist of the passage of medium passing.The plate pipe is stacked in twos, welds two adjacent short sides, and welding is inserted in edges and corners, and formed plate chamber consists of the passage of circulation of air.

Described stepped corrugations plate is by stainless steel, titanium plate, Cu alloy material manufacturing.

Described spray system comprises stage filter; This stage filter is made of single filter net and secondary filter.

Described secondary filter adopts the ramped shaped incline structure.

The shower hierarchical arrangement of described spray system, two, level Four shower left and right arms equal in length, three, the Pyatyi shower up and down brachium than being 1:2～4.

The water tank upper end of described spray system is with flange.

The blower fan of described air-conditioning system is by motor direct-drive.

Between the upper and lower clamping plate of described heat-exchange system shrinkage joint is arranged.

The beneficial effect that the utility model is obtained: the utility model heat transfer plate bundle consisted of by the stepped corrugations plate and this stepped corrugations plate by material manufacturings such as stainless steel, titanium plates, strengthen the heat exchange property of air cooler, had simultaneously good anticorrosive, high temperature resistant, high voltage bearing serviceability concurrently.The air temperature rise is far longer than the board-like wet air cooler of tradition, and heat transfer efficiency is high.The installation of stage filter has fundamentally solved the blockage problem of nozzle up hill and dale.The adjustment of nozzle and plate interfascicular distance has solved the not enough problem of spray globule atomizing.Through the adjustment of said method, so that the operation of spray system becomes unblocked; The direct driving of blower fan so that the specified general power of motor reduce, thereby reduced the electricity loss of equipment.The employing of separate structure has made things convenient for assembling, transportation, the maintenance of equipment; The cramped construction of water tank cantilever platform formula has reduced device fabrication, maintenance cost simultaneously so that floor space reduces.

Description of drawings

Fig. 1 is the board-like wet fan for air cooler side structure schematic diagram of the utility model;

Fig. 2 is the board-like wet air cooler spray side structure schematic diagram of the utility model;

Fig. 3 is the utility model plate case scheme of installation;

Fig. 4 is the utility model plate box structure schematic diagram;

Fig. 5 is the utility model plate binding structure schematic diagram;

Fig. 6 is the utility model spray system schematic diagram;

Fig. 7 is that the utility model blower fan side spray is drenched system schematic;

Fig. 8 is the utility model air-conditioning system schematic diagram;

Fig. 9 is the utility model filter schematic diagram;

Figure 10 is the utility model secondary filter schematic diagram;

Figure 11 is the utility model nozzle schematic diagram.

Among the figure:

The specific embodiment

Below in conjunction with accompanying drawing the utility model and beneficial effect thereof are described in further detail.

Embodiment, referring to figs. 1 through Figure 11, described board-like wet air cooler is made of air-conditioning system, heat-exchange system, spray system three large systems.Critical piece is comprised of blower fan apparatus 1, plate case 2, spray equipment 3, filter 4, water tank 5 etc.A flow through from top to bottom passage of plate bundle of thermal medium, air crosses another passage of plate bundle behind the shower water humidifying cooling, and the heat exchange of thermal medium mainly occurs between two passages.

The parts that form described heat-exchange system plate case 2 have: thermal medium arrival end flange 206, thermal medium port of export flange 207, upper cover 209, low head 210, pull bar 208, train wheel bridge 211, lower plate 212 etc.Upper cover 209, low head 210 are welded on respectively the two ends of plate bundle 205, form the chamber of medium passing.Adopt joinery and its construction, matched in clearance to leave shrinkage joint 213 between the described upper and lower clamping plate 211,212, to improve the applied at elevated temperature performance of wet air cooler.

Described plate bundle 205 mainly by the corrugated plating periphery be ladder staircase waveform card 2051, inserting 2052 consists of.The limit is grown in twos described staircase waveform card 2051 make-ups, welding, and formed plate chamber (plate pipe) consists of the passage of medium passing.The plate pipe is stacked in twos, welds two adjacent short sides, and welding inserts 2052 in edges and corners, and formed plate chamber consists of the passage of circulation of air.Hot and cold like this medium flows in plate chamber separately and finishes exchange heat.Repeat said method, numerous plate pipe consists of plate bundle 205.

Described plate bundle is fixed between clamping plate, pull bar 208, the upper and lower end socket, and wherein inserting on upper and lower end socket and the plate bundle welds together.

Described stepped corrugations plate 2051 is by material manufacturings such as stainless steel, titanium plates, and sheet metal thickness is about 1.0mm.Adopt the staircase waveform card improving withstand voltage operating mode, and then improve its heat exchange property.

The parts that form described air-conditioning system blower fan apparatus 1 have: motor 101, blower fan 103, bellows circle 104, wind-box damper 105 etc.Blower fan apparatus 1 is provided with recycle-water outlet 106.Whole blower fan apparatus 1 is arranged on the framework 102.The blower fan 103 of blower fan apparatus 1 directly drives with motor 101.The direct driving of blower fan so that the specified general power of motor reduce, thereby reduced the electricity loss of equipment.

The parts that form the spray equipment 3 of described spray system have: water pump 301, motor 302, spray pipe, nozzle 308 etc.Wherein: the utility model spray pipe is made of one-level shower 303, secondary shower 304, three grades of showers 305, level Four shower 310, Pyatyi shower 306 five stage pipelines respectively.Secondary shower 304 and level Four shower 310 left and right arms equal in length, the up and down brachium ratio of three grades of showers 305 and Pyatyi shower 306 is about 1:2～4, and preferred 1:3 in order to make the isostasy at each nozzle place, draws the above results through experiment.That is to say the spray pipe of aforementioned proportion, the atomizing zone of each nozzle is suitable, and the dead angle that do not atomize exists.

Nozzle 308 is arranged in the upper/lower terminal of Pyatyi shower 306, the water inlet 309 of water pump 301 is located on the water tank 5, water tank 5 is provided with the adapter 311 for recycle-water, takes over 311 and links to each other with recycle-water outlet 106 on the blower fan framework, and water tank 5 bottoms are provided with slag-drip opening 312.Pump motor group of the present utility model is two groups, only starts wherein one group during normal operation, and another group is for subsequent use.

The top of water tank 5 is provided with screen pack, and the design granularity of screen pack is 10mm.

Stage filter 4 is made of single filter net 401 and secondary filter 405, and the design order number of single filter net 401 is 10 orders.The design order number of cascade filtration net 403 is 20 orders.The major part that forms stage filter 4 has: single filter net 401, rectangular flange 402, cascade filtration net 403, flange 406, pressing plate 404 etc.The utility model filter adopts the mode of classified filtering to purify water, the screen pack of water tank upper is that 10mm and above impurity particle keep off outside water tank with diameter, single filter net 401 with diameter be impurity particle gear more than the 2mm outside screen pack 401, cascade filtration net 403 is more than the 0.85mm, nozzle is consisted of the impurity particle that stops up filters out diameter.

Secondary filter 405 adopts the ramped shaped incline structure, the gradient is between 20 °, 30 °, 35 °, 40 ° or 45 °, the slope arranges that down the purpose that adopts this structure is in order to take full advantage of the deadweight of impurity particle, with the despumation particle cascade filtration net 403 to be caused new obstruction.

Stage filter 4 is installed in pump intake 309 places in the water tank.

The used nozzle of the utility model is spiral nozzle 308, and the aperture of centre bore 3001 is 2mm.Nozzle 308 is by the screwed connection of screw thread 3002 with the spray pipe end.Nozzle is standard component, is divided into rectangular nozzle, fan nozzle, conical nozzle, spirality nozzle etc. according to difference of its atomizing shape, is divided into solid nozzle and nozzle according to the difference of globule distribution density in the atomizing zone.Based on a large amount of tests: nozzle atomizing zone is larger, and it is inhomogeneous to atomize, and spraying effect is not good enough; The solid nozzle atomizing effect is better, weak point be solid nozzle easily stop up the atomizing zone less; The atomizing zone of spiral nozzle is between between the two, but the advantage that it has the two concurrently, thereby the utility model nozzle adopts spiral nozzle, spiral nozzle 308 is the standard component of external thread form, its centre bore 3001 ends are provided with barrier plate 3003, the effect of barrier plate 3003 is to stop the direct projection of terminal water column, and terminal water column is fully atomized.

Water tank 5 upper ends of described spray system are with flange, and namely water tank 5 adopts cantilever platform formula structure, and the pump motor group is arranged in its underpart.This kind structure has not only effectively utilized the space, has also adjusted the spacing of nozzle and plate bundle simultaneously, makes the atomizing effect of nozzle obtain rational performance.Solved simultaneously the ponding problem of workbench, and so that structure is compacter, floor space reduces more.

Described air-conditioning system, heat-exchange system, spray system adopt the separate structure to install.Specifically: their separately blower fan frameworks 102, plate case framework 203 and spray framework 307 are installed in the end and stick up on 201, for conveniently install, transportation, each framework and the end, stick up with bolts.

The course of work of the present utility model is: thermal medium to be cooled enters board-like wet air cooler from thermal medium entrance 204, enters the thermal medium plate chamber of plate bundle 205 through upper cover 209; Shower water flows out from water tank 5, flow to spray pipe by water pump 301, spouting by nozzle 308 under the effect of hydraulic pressure, shower water atomizes near nozzle 308, and then with air wetting, under the suction function that induced air type blower fan 103 produces over there, humid air enters the cold dielectric-slab chamber of plate bundle 205.Hot and cold like this medium is take staircase waveform card 2051 as the interface, exchange heat occurs, thermal medium through cooling flows out board-like wet air cooler by low head 210 from thermal medium outlet 202, and humid air flows out board-like wet air cooler because the cause moisture of exchange heat is evaporated from blower fan 103 ends.

Claims (9)

1. a board-like wet air cooler comprises air-conditioning system, heat-exchange system, spray system; It is characterized in that: the plate bundle (205) of described heat-exchange system mainly is made of staircase waveform card (2051), insert (2052); The limit is grown in twos described staircase waveform card (2051) make-up, welding, and formed plate chamber or plate pipe consist of the passage of medium passing; The plate pipe is stacked in twos, welds two adjacent short sides, and welding is inserted (2052) in edges and corners, and formed plate chamber consists of the passage of circulation of air.

2. a kind of board-like wet air cooler according to claim 1, it is characterized in that: described stepped corrugations plate (2051) is by stainless steel, titanium plate or Cu alloy material manufacturing.

3. a kind of board-like wet air cooler according to claim 1, it is characterized in that: described spray system comprises stage filter (4); This stage filter (4) is made of single filter net (401) and secondary filter (405).

4. a kind of board-like wet air cooler according to claim 3 is characterized in that: described secondary filter (405) employing ramped shaped incline structure.

5. according to claim 1 or 3 described a kind of board-like wet air coolers, it is characterized in that: the shower hierarchical arrangement of described spray system, two, level Four shower left and right arms equal in length, three, the Pyatyi shower up and down brachium than being 1:2～4.

6. it is characterized in that according to claim 1 or 3 or 5 described a kind of board-like wet air coolers: the water tank of described spray system (5) upper end is with flange.

7. a kind of board-like wet air cooler according to claim 1, it is characterized in that: the blower fan of described air-conditioning system (103) is by motor direct-drive.

8. a kind of board-like wet air cooler according to claim 1, it is characterized in that: the upper and lower clamping plate of described heat-exchange system have shrinkage joint (213) between (211,212).

9. a kind of board-like wet air cooler according to claim 1 is characterized in that: described air-conditioning system, heat-exchange system, the installation of spray system employing separate structure.

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