CN104807347A - Special cooler for closed cooling towers - Google Patents

Special cooler for closed cooling towers Download PDF

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Publication number
CN104807347A
CN104807347A CN201510193560.8A CN201510193560A CN104807347A CN 104807347 A CN104807347 A CN 104807347A CN 201510193560 A CN201510193560 A CN 201510193560A CN 104807347 A CN104807347 A CN 104807347A
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China
Prior art keywords
heat exchange
exchange unit
cooler
outlet
cooling tower
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CN201510193560.8A
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Chinese (zh)
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CN104807347B (en
Inventor
张永庆
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Jinan Qin Tai Gesellschaft fur Waermetechnik Mbh
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Jinan Qin Tai Gesellschaft fur Waermetechnik Mbh
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Publication of CN104807347A publication Critical patent/CN104807347A/en
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Abstract

The invention discloses a special cooler for closed cooling towers, which is provided with a plurality of thin wall type heat exchange units, the thin wall type heat exchange units are spaced from one another and arranged vertically, uniform gaps are arranged among the adjacent heat exchange units, each heat exchange unit is provided with at least one inlet and at least one outlet, each heat exchange unit is provided with at least one group of to-be-cooled medium passages which is used for communicating the inlet with the outlet, and concave and convex lines are formed on the outer surface of each heat exchange unit; the inlets of the heat exchange units are communicated with one another and form a to-be-cooled liquid medium inlet, and the outlets of the heat exchange units are communicated with one another and form a cooled liquid medium outlet. The installation process of the cooler is simplified, the cooling efficiency is increased, the strength of the cooler is high, internal circulating water flows along the outer surface of the cooler and flows in the form of a membrane, the interior of the cooler used in winter is prevented from freezing to damage a heat exchanger, and reliable guarantee is provided for the safety operation of equipment.

Description

The special cooler of a kind of closed cooling tower
Technical field
This invention relates to the cooler technical field used in closed cooling tower, specifically the special cooler of a kind of closed cooling tower.
Background technology
Closed cooling tower is a kind of cooling device efficiently, evaporation of water latent heat is mainly utilized to take away the heat of process fluid, complete the cooling to process fluid, achieve recycling of cooling water simultaneously, be widely used in the industries such as refrigeration, chemical industry, food, injection moulding, metallurgy, weaving at present.
The type of cooling that existing closed cooling tower adopts polyvinyl chloride inserts and heat exchange coil to combine usually, wherein polyvinyl chloride inserts is positioned at the top of heat exchange coil, established technology circulation of fluid flow in heat exchange coil simultaneously outer loop current through the cooling of polyvinyl chloride inserts, the water after cooling and heat exchange coil transmission of heat by contact thus the water in coil pipe is cooled.
Closed cooling tower needs to adopt polyvinyl chloride inserts to promote the cooling of outer loop water, and the light and thermally stable of polyvinyl chloride is poor, and long-time use easily aging phenomenon occurs, thus causes certain infringement and impact to the stuctures and properties of equipment.And the material of contaminated environment can be produced polyvinyl chloride inserts is from raw material to finished product manufacturing process, inadequate environmental protection.And current polyvinyl chloride inserts quality is on the market uneven, some does not reach national standard and does not belong to difficult combustion product, is but still used on cooling tower equipment, causes disaster hidden-trouble.
Surface area in addition due to heat exchange coil is little, and heat transfer effect is bad, in order to improve heat transfer effect, just needing to increase heat exchange area, increasing manufacturing cost, cause the volume of cooling tower excessive.
Summary of the invention
In order to solve the deficiencies in the prior art, the object of the present invention is to provide the special cooler of a kind of closed cooling tower, the mode carrying out cooling is combined by changing original polyvinyl chloride inserts and heat exchange coil, a kind of cooler of metal material is provided, can carries out welding or removable mode is assembled, the high-pressure of more than 2 MPas can be born, and by increasing the surface area of heat exchange, increase the heat transfer effect of unit volume, and reduce the volume of equipment, improve service life further simultaneously.
The technical solution adopted for the present invention to solve the technical problems is:
The special cooler of a kind of closed cooling tower, it is characterized in that, there is in described cooler some being spaced and the thin wall-type heat exchange unit vertically arranged, the concavo-convex strong point is provided with on adjacent heat exchange unit surface, make to form uniform gap between adjacent heat exchange unit, described heat exchange unit carries out pressure welding shape all-in-one-piece by two metallic plates be stamped to form along edge, and medium channel to be cooled (21) is formed in inside, heat exchange unit described in each is provided with at least one import and outlet, there is at least one group by medium channel to be cooled through with outlet for import in described heat exchange unit, and the concave convex texture being beneficial to moisture film and being formed is formed at the outer surface of described heat exchange unit,
Described import on all heat exchange units is through each other and form medium entrance to be cooled, and the described outlet on all heat exchange units is through each other and form cooling medium outlet.
Further, the packing ring that described cooler comprises the support plate of both sides, middle heat exchange unit and is arranged between heat exchange unit, described support plate is arranged crossbeam connecting hole, and a support plate arranges suction flange pipe and outlet(discharge) flange pipe wherein, respectively with import with export corresponding matching and through, and described suction flange pipe is positioned on the downside of outlet(discharge) flange pipe; Also be provided with in four corners of described heat exchange unit the fastener hole passed for crossbeam, four groups of crossbeams are through crossbeam connecting hole and fastener hole and be strained and fixed integral by described support plate, heat exchange unit and packing ring.
Further, described cooler comprises the support plate of both sides and middle heat exchange unit, four crossbeams are set between support plate described in two, and a support plate arranges suction flange pipe and outlet(discharge) flange pipe wherein, respectively with import with export corresponding matching and through, and described suction flange pipe is positioned on the downside of outlet(discharge) flange pipe; Heat exchange unit described in each is fixed by the mode of welding and four crossbeams carry out being welded to connect and form one.
Further, described heat exchange unit profile is the one in square, rectangle, polygon, circle.
Further, be one in stainless sheet steel, copper alloy thin plate, aluminium alloy sheet for making the stamped sheet metal of heat exchange unit.
Further, between the medium channel multiple to be cooled of described heat exchange unit inside, breach is set, makes through each other.
Further, described concave convex texture is the lines of point-like or lambdoid lines.
Further, described suction flange pipe and outlet(discharge) flange pipe are set to multiple, are set up in parallel.
Further, the auxiliary concavo-convex strong point for supporting internal voids is also provided with in the inside of described heat exchange unit.
Further, the described concavo-convex strong point, the auxiliary concavo-convex strong point and concave convex texture are formed with metallic plate integrated punching.
The invention has the beneficial effects as follows: the invention discloses the special cooler of a kind of closed cooling tower, the mode of welding or assembling can be adopted to carry out shaping, simplify the installation process of cooler, improve cooling effectiveness, improve 2-3 doubly than traditional polyvinyl chloride packings and heat exchange coil formula cooling effectiveness, reduce volume.
Heat exchange unit in cooler carries out pressure welding shape all-in-one-piece by two metallic plates be stamped to form along edge, intensity is high, and the surface outside each unit is provided with the concavo-convex strong point, forms support each other between heat exchange unit, the pressure of inner 20 MPas can be born.
Do not re-use polyvinyl chloride packings, cooling tower inner loop water is along the outer surface flowing of cooler and film-like flowing, and when avoiding use in winter, cooler inner icing causes damage to cooler, provides reliable guarantee to the safe operation of equipment.
Can be used for the polyvinyl chloride packings that uses in alternative existing cooling tower and heat exchange coil, environmental protection and saving, stops disaster hidden-trouble, is a kind of environmental protection equipment.
Have wide range of applications, can be applicable in existing cooling tower, evaporimeter, condenser, dry and cold device, air cooler, use as a core component, widely use.
Accompanying drawing explanation
Fig. 1 is the application of this cooler in enclosed heat exchange columns.
Fig. 2 is the dismounting schematic diagram of cooler.
Fig. 3 is the front view of cooler.
Fig. 4 is the medium channel lines in single heat exchange unit.
Fig. 5 is that multiple heat exchange unit is circular layout.
Fig. 6 is multiple heat exchange unit rectangular arrangement.
Fig. 7 is the structural style of the import and export in heat exchange unit.
Fig. 8 is that the series connection of two coolers uses schematic diagram.
Fig. 9 is the concavo-convex strong point and the auxiliary effect schematic diagram of the concavo-convex strong point in heat exchange unit.
In figure: 1 tower body, 11 blower fans, 12 air inlets, 13 water-collecting trays, 14 shower nozzles, 15 splash-backs,
2 coolers, 21 medium channels to be cooled,
22 support plate, 221 crossbeam connecting holes, 222 suction flange pipes, 223 outlet(discharge) flange pipes,
23 heat exchange units, 231 metallic plates, 232 welding positions, 233 imports, 234 outlets, 235 fastener holes, the 236 concavo-convex strong points, the 237 auxiliary concavo-convex strong points,
24 packing rings, 3 spray channels and gas channel, 4 crossbeams, a medium to be cooled, b cold water.
Detailed description of the invention
As shown in Figures 1 to 7,
Key point of the present invention and protection point are the polyvinyl chloride inserts and the heat exchange coil that eliminate closed cooling tower; make the cooler in the present invention as the core component of cooling tower/evaporator/condenser/dry and cold device/air cooler; exercise the usefulness of cooling; by substituting; while reducing volume; improving cooling effectiveness, meanwhile, is again the withstand voltage cooler that can bear certain pressure.
Example is applied as with of the present invention in closed cooling tower, this cooler is described, as shown in Figure 1, present device is primarily of component compositions such as tower body 1, water-collecting tray 13, cooler 2, water pump, shower, shower nozzle 14, splash-back 15, blower fan 11, air inlets 12.
Tower body 1 can adopt existing fiberglass formula structure or full steel structure, is not repeating.
In order to improve the cooling effectiveness of closed cooling tower, improve its service life, and solve the problem using cooling tower in high pressure cooling, a kind of cooler 2 (as Fig. 4) of specialized designs of the present invention, pass through structure, the improvement of shaping and occupation mode, substantially increase the effective heat exchange area of unit volume cooler in tower, it is 2 to 3 times of common closed cooling tower, and coordinate the lines design on heat exchange unit surface, such as lambdoid lines design, extend the cooling path of medium to be cooled, simultaneously, make circulating water flow through plate bundle outer surface time, sufficient heat exchange can be carried out with cold air, cold exchange, the cooling capacity of outer loop water is made greatly to improve 2 to 3 times, and without the impact of polyvinyl chloride inserts, flowing resistance reduces, drafting efficiency improves 2 to 3 times.And making it possess the medium to be cooled walking more than 2 MPas in medium channel by structure improvement, pressure medium to be cooled is high, and corresponding cold and hot exchange is quicker.
In the present embodiment, cooler uses as a core component of cold and hot exchange, cooler comprises the support plate 22 of both sides, middle heat exchange unit 23 and the packing ring 24 be arranged between heat exchange unit form, above-mentioned support plate 22 as shown in Figure 2 and Figure 4, adopt corrosion resistant galvanized steel plain sheet, alloy-steel plate makes, supporting steel plate arranges crossbeam connecting hole 221, and a support plate arranges suction flange pipe 222 and outlet(discharge) flange pipe 223 wherein, arrange up and down, generally, suction flange pipe is positioned at lower end, as arrow in Fig. 2 represents the flow channel of medium to be cooled.
In the present embodiment, be provided with a suction flange pipe and an outlet(discharge) flange pipe, when consider that heat exchange unit does wider, above-mentioned suction flange pipe and outlet(discharge) flange pipe also can be set to multiple, being set up in parallel, is a kind of relation arranged side by side between multiple.
Above-mentioned heat exchange unit 23 is welded by two metallic plates be stamped to form 231, such as, adopts stainless sheet steel punching press to form some concave convex textures being conducive to moisture film continuously and being formed, i.e. herringbone concave convex texture.Meanwhile, in the process of each stainless sheet steel punching press, stamp out two concavo-convex strong points 236 and the auxiliary concavo-convex strong point 237, as shown in Figure 9, wherein medium a to be cooled and cold water b flows the inside and outside of heat exchange unit respectively simultaneously.The concavo-convex strong point is wherein positioned at the outside of heat exchange unit, carries out external support, like this when medium to be cooled is the state of high pressure, can form a kind of effective support, increase withstand voltage properties.The auxiliary concavo-convex strong point is positioned at the inside of heat exchange unit, carry out inner support, inner medium channel to be cooled is made to be within rational interstice coverage, and the edge of two metallic plates is carried out pressure welding formation one, welding position 232 gets around the import 233 on it and exports 234, wherein import 233 is by packing ring 24 and suction flange pipe 222 corresponding matching, outlet 234 and outlet(discharge) flange pipe 223 corresponding matching.The inside of the heat exchange unit 23 formed by welding forms medium channel 21 to be cooled, is the path of media flow to be cooled.Can path be extended and form turbulent flow under the effect of herringbone concave convex texture, increase cold heat exchange effect.Be positioned at the fastener hole 235 passed for crossbeam of four corners, wherein the pattern of fastener hole 235 the best as shown in Figure 2, is a breach being greater than 180 degree.Several herringbones independent of each other medium channel to be cooled is formed like this in the inside of each heat exchange unit, because metallic plate adopts sheet stamping to form, the outside of this medium channel, namely the outer surface of heat exchange unit is also projection, like this in current (coming from spray system) the top-down flow process in outside, coordinate the air-flow of adverse current, easily form adsorption effect at the outer surface of heat exchange unit, and make outside cooling water in the form of a film quickly through, heat transfer effect is multiplied.
In above-mentioned introduction, stamped sheet metal 231 for making heat exchange unit also can adopt alloy sheets, such as copper alloy thin plate, aluminium alloy sheet etc. carry out punching press making, meet thin-walled, light weight, feature corrosion-resistant, easy to clean, there is higher intensity, meet the requirement being easy to welding fabrication simultaneously.
In the manufacturing process of heat exchange unit, can will import and export the pattern being designed to intersect, as shown in Figure 7, that is, best a kind of mode, import 233 and outlet 234 are discrete, in the circumferential in interrupted distribution, form multiple micropore, form strong support, and form brace rod.
Be intervally installed between above-mentioned heat exchange unit 23, and discontinuous setting, spray channels and gas channel 3 is formed like this between adjacent heat exchange unit, as shown in Figure 3, wherein, medium to be cooled is in the internal flow of heat exchange unit, and best flow direction is from bottom to top, forms the flowing type of adverse current with the cooling water flow in outside.
In such a configuration, what the heat exchange unit between adjacent by two effectively separated is packing ring 24, or be referred to as pad, its middle washer preferentially adopts rubber washer, ring bodies as shown in Figure 2, use position to be the import and export and crossbeam 4 place located up and down, form the two kinds of patterns separating and seal like this.
In the above embodiments, formed between heat exchange unit and support plate a kind of can the annexation of dismounting, as the one distortion in the present embodiment, also can be formed an entirety by the mode be welded to one another between wherein each heat exchange unit, form a kind of permanent fixed form.Particularly, four crossbeams 4 are set between support plate described in two 22, and a support plate arranges suction flange pipe 222 and outlet(discharge) flange pipe 223 wherein, respectively with import 233 with export 234 corresponding matching and through, and described suction flange pipe 222 is positioned on the downside of outlet(discharge) flange pipe 223; Heat exchange unit described in each is fixed by the mode of welding and four crossbeams 4 carry out being welded to connect and form one.Being replaced by by the connection of tension compression is weldingly fixed on crossbeam, forms a kind of fixed form, equally within protection scope of the present invention.
The pattern of the medium channel to be cooled 21 in above-mentioned heat exchange unit is various, can use for reference the relevant lines design in the heat exchanger fin in existing cooler, all be applicable to the present invention.
The pattern of above-mentioned heat exchange unit, can be made into square, the pattern such as rectangle, polygon, circle, and make crossbeam inserting hole, and pulling plug fastener hole etc.
Above-mentioned heat exchange unit 23 in cooling tower can single, many rows, series connection (as Fig. 8), parallel combinations arrange; also can arrange according to rectangular array; as Fig. 6; or arrange according to circular array; as Fig. 5; form multiple different arrangement form, all within protection scope of the present invention.
The medium channel to be cooled 21 of above-mentioned heat exchange unit inside also can be through each other, i.e. arrange breach between the chevron shaped channels of single heat exchange unit inside, make through each other, like this when medium to be cooled passes through, must turbulence effect be formed, improve heat transfer effect further.
The above-mentioned concavo-convex strong point 236 and the auxiliary concavo-convex strong point 237 not necessarily have to adopt the pattern shown in Fig. 9, also can adopt other pattern, as taper support point, as long as the effect can playing support is all within protection scope of the present invention.
Due to the raising of cooling effectiveness, compared with common coiled closed cooling tower, floor space reduces greatly, is about 1/2 of common tubular type closed cooling tower.
Owing to not re-using polyvinyl chloride inserts, equipment windage reduces, and drafting efficiency improves, and under same cooling capacity, effectively reduce the power consumption of blower fan, power consumption is lower.
For reaching the object of environmental protection and saving, this closed cooling tower does not re-use polyvinyl chloride inserts, has stopped disaster hidden-trouble, not only environmental protection but also save.
As Fig. 1, for the application of this assembly in closed cooling tower, it is the suction opeing installing blower fan 11 at the top of tower body 1, both sides, bottom are provided with air inlet 12, and be provided with a water-collecting tray 13 in the bottom of tower body, arrange some shower nozzle 14, water pumps in described tower body on the upside of described cooler the water in water-collecting tray is delivered to shower nozzle place and sprays towards cooler, form spray system.
As shown in Figure 8, above-mentioned cooler can be used alone, use of also can connecting, namely arrange up and down, and use pipeline to connect, form the chiller assembly that has secondary heat exchange performance, easy reasoning, go for three grades, in the cooling such as level Four occasion.
Embodiment recited above is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; relevant technical staff in the field, to various distortion of the present invention and improvement, all should expand in protection domain as determined in claims of the present invention.

Claims (10)

1. the special cooler of closed cooling tower, it is characterized in that, there is in described cooler some being spaced and the thin wall-type heat exchange unit (23) vertically arranged, the concavo-convex strong point is provided with on adjacent heat exchange unit surface, make to form uniform gap between adjacent heat exchange unit, described heat exchange unit (23) carries out pressure welding shape all-in-one-piece by two metallic plates be stamped to form (231) along edge, and medium channel to be cooled (21) is formed in inside, heat exchange unit described in each is provided with at least one import and outlet, there is at least one group by medium channel to be cooled (21) through with outlet for import in described heat exchange unit, and the concave convex texture being beneficial to moisture film and being formed is formed at the outer surface of described heat exchange unit,
Described import (233) on all heat exchange units is through each other and form medium entrance to be cooled, and the described outlet (234) on all heat exchange units is through each other and form cooling medium outlet.
2. the special cooler of a kind of closed cooling tower according to claim 1, it is characterized in that, described cooler comprises the support plate (22) of both sides, middle heat exchange unit (23) and the packing ring (24) be arranged between heat exchange unit, described support plate (22) is arranged crossbeam connecting hole (221), and a support plate arranges suction flange pipe (222) and outlet(discharge) flange pipe (223) wherein, respectively with import (233) with export (234) corresponding matching and through, and described suction flange pipe (222) is positioned at outlet(discharge) flange pipe (223) downside, also be provided with the fastener hole (235) passed for crossbeam in four corners of described heat exchange unit, four groups of crossbeams (4) are through crossbeam connecting hole (221) and fastener hole (235) and be strained and fixed integral by described support plate, heat exchange unit and packing ring.
3. the special cooler of a kind of closed cooling tower according to claim 1, it is characterized in that, described cooler comprises the support plate (22) of both sides and middle heat exchange unit (23), four crossbeams (4) are set between support plate described in two (22), and a support plate arranges suction flange pipe (222) and outlet(discharge) flange pipe (223) wherein, respectively with import (233) with export (234) corresponding matching and through, and described suction flange pipe (222) is positioned at outlet(discharge) flange pipe (223) downside; Heat exchange unit described in each is fixed by the mode of welding and four crossbeams (4) carry out being welded to connect and form one.
4. the special cooler of a kind of closed cooling tower according to Claims 2 or 3, is characterized in that, described heat exchange unit profile is the one in square, rectangle, polygon, circle.
5. the special cooler of a kind of closed cooling tower according to claim 4, is characterized in that, for making, the stamped sheet metal (231) of heat exchange unit is stainless sheet steel, one in copper alloy thin plate, aluminium alloy sheet.
6. the special cooler of a kind of closed cooling tower according to claim 4, is characterized in that, arranges breach between the medium channel multiple to be cooled of described heat exchange unit inside, makes through each other.
7. the special cooler of a kind of closed cooling tower according to claim 1, is characterized in that, described concave convex texture is the lines of point-like or lambdoid lines.
8. the special cooler of a kind of closed cooling tower according to claim 1, is characterized in that, described suction flange pipe and outlet(discharge) flange pipe are set to multiple, are set up in parallel.
9. the special cooler of a kind of closed cooling tower according to claim 1, is characterized in that, is also provided with the auxiliary concavo-convex strong point for supporting internal voids in the inside of described heat exchange unit.
10. the special cooler of a kind of closed cooling tower according to claim 1, is characterized in that, the described concavo-convex strong point, the auxiliary concavo-convex strong point and concave convex texture are formed with metallic plate (231) integrated punching.
CN201510193560.8A 2015-04-22 2015-04-22 A kind of special cooler of closed cooling tower Active CN104807347B (en)

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CN104807347B CN104807347B (en) 2016-09-14

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2604664Y (en) * 2003-03-11 2004-02-25 洪晓波 Plate type evaporating cooler
JP2006226660A (en) * 2005-02-21 2006-08-31 Ebara Shinwa Ltd Single suction type cross flow compact cooling tower
CN202221251U (en) * 2011-09-05 2012-05-16 山东双一集团有限公司 Plate heat exchange cooling tower
CN204064020U (en) * 2014-06-26 2014-12-31 潘井生 A kind of sealed cooling tower
CN204694113U (en) * 2015-04-22 2015-10-07 济南秦泰热工技术有限公司 The special cooler of a kind of closed cooling tower

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2604664Y (en) * 2003-03-11 2004-02-25 洪晓波 Plate type evaporating cooler
JP2006226660A (en) * 2005-02-21 2006-08-31 Ebara Shinwa Ltd Single suction type cross flow compact cooling tower
CN202221251U (en) * 2011-09-05 2012-05-16 山东双一集团有限公司 Plate heat exchange cooling tower
CN204064020U (en) * 2014-06-26 2014-12-31 潘井生 A kind of sealed cooling tower
CN204694113U (en) * 2015-04-22 2015-10-07 济南秦泰热工技术有限公司 The special cooler of a kind of closed cooling tower

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Denomination of invention: Special cooler for closed cooling towers

Effective date of registration: 20170517

Granted publication date: 20160914

Pledgee: Qilu bank, Limited by Share Ltd, Ji'nan Zhang Zhuang sub branch

Pledgor: Jinan Qin Tai Gesellschaft Fuer Waermetechnik mbH

Registration number: 2017370000053

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