CN207703034U - A kind of fluoroplastics tubular type liquid-liquid heat exchanger - Google Patents

Abstract

The utility model discloses a kind of fluoroplastics tubular type liquid-liquid heat exchanger, it can solve the problems, such as that existing fluorine plastic tube shell heat exchanger effectively cannot be greatly improved or reduce the temperature of pending feed liquid of the large volume with strong corrosive.It include the heat-exchanging tube bundle being made of more fluoroplastics thin micro tubes; its both ends is heat transferring medium inlet end and an outlet end; the U-shaped distribution of the heat-exchanging tube bundle; its two-arm is equipped with the vertical protect-ing frame structure of cuboid; bottom is equipped with the horizontal protect-ing frame structure of cuboid; it is fixed with limiting plate in the width direction in the horizontal protect-ing frame structure; the limiting plate be equipped with for heat-exchanging tube bundle by central poling slot; it is equipped with cover sheet above the horizontal protect-ing frame structure, array small sircle hole is opened up on the vertical protect-ing frame structure, horizontal protect-ing frame structure, limiting plate and cover sheet.

Description

A kind of fluoroplastics tubular type liquid-liquid heat exchanger

Technical field

It is strong rotten the utility model is related to have in chemical industry, light industry, pharmacy, pesticide, alkaline, dyestuff, metallurgy and plating production Lose liquid-liquid heat-exchange apparatus field more particularly to the fluoroplastics tubular type liquid-liquid heat exchanger of medium.

Background technology

The economy of enterprise is imitated in further attention with the development and country of new material to environmental protection, in addition energy-saving and emission-reduction The influence of benefit so that traditional metal material (such as carbon steel, stainless steel, titanium) heat exchanger exchanges heat in strong acid alkalinity and strong oxidizing property It is easy to corrosion and scaling in system and the influence for the unfavorable factors such as service life is short, teflon heat exchanger is answered with the requirement in epoch It transports and gives birth to.Teflon heat exchanger has been developed in recent years for the anti-corrosion heat transmission equipment in strong corrosive medium, and current grinds Study carefully the heat exchange element mainly as high effective flue gas heat exchange equipment, for the recycling of fume afterheat depth and further dedusting, obtains Gratifying effect.

Teflon heat exchanger is used as heat exchange material using fluoroplastics, mainly since fluoroplastics have excellent performance, such as： (in addition to molten metal sodium and liquid fluorine, it is resistant to all acid, alkali, salt and all other chemical drugs with splendid corrosion resistance Product), surface non-stick (surface is not easy to stain fouling, have automatic cleaning action), heat resistance it is good (temperature in use -200~ 200 DEG C of ranges), ageing-resistant performance is good and service life length (outdoor service life is up to 20 years), light weight, friction coefficient are small etc. Advantage.

Currently, the research of teflon heat exchanger is concentrated mainly on the heat exchange element of high effective flue gas heat exchange equipment.But fluorine is moulded Expect that heat exchanger is used as having strong corrosive medium in chemical industry, light industry, pharmacy, pesticide, alkaline, dyestuff, metallurgy and plating production The research of heat exchange element of liquid-liquid heat exchange equipment just start, it has been domestic to develop novel fluoroplastics heat transmission equipment The hot spot of outer researcher research is suitable for the heat exchange of the constant high temperature or permanent low temperature requirements of large capacity constant volume deep-etching liquid The fluoroplastics pipe heat exchanger of processing has not been reported.Chemical inert material teflon heat exchanger is to heated solution acid and alkali corrosion System does not have particular/special requirement, and the heat exchanger of large capacity constant volume deep-etching liquid is made with wide with fluoroplastics thin micro tube Application prospect.

Utility model content

In response to the deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a kind of fluoroplastics tubular types Liquid-liquid heat exchanger can solve existing fluorine plastic tube shell heat exchanger and effectively cannot be greatly improved or reduce to have The problem of temperature of the pending feed liquid of the large volume of strong corrosive, overcomes existing fluorine plastic tube shell heat exchanger to from room temperature It is raised to the heating of the solution of tens degree of even upper Baidu or drops to room temperature and lower temperature from the solution of tens degree of even upper Baidu Just seem defect that is extremely inadaptable and not reaching requirement.

The utility model is using the basic conception of technical solution：A kind of fluoroplastics tubular type liquid-liquid heat exchanger, including by more The heat-exchanging tube bundle of root fluoroplastics thin micro tube composition, both ends are heat transferring medium inlet end and an outlet end, and the heat-exchanging tube bundle is U-shaped Distribution, two-arm are equipped with the vertical protect-ing frame structure of cuboid, and bottom is equipped with the horizontal protect-ing frame structure of cuboid, the horizontal protect-ing frame structure Inside be fixed with limiting plate in the width direction, the limiting plate be equipped with for heat-exchanging tube bundle by central poling slot, it is described horizontal to protect It is equipped with cover sheet above shield frame, is opened on the vertical protect-ing frame structure, horizontal protect-ing frame structure, limiting plate and cover sheet If array small sircle hole.

Preferably, the inlet end and an outlet end is separately connected inlet tube and outlet, the import by connecting flange End is identical with the structure of outlet end, includes tube sheet and pressing plate, is equipped with and fluoroplastics thin micro tube phase on the tube sheet, pressing plate The fluoroplastics thin micro tube of corresponding trepanning, the heat-exchanging tube bundle passes through the tube sheet trepanning and forms flange, and the pressing plate is logical It crosses sunk screw to connect with the tube sheet, and the flange of the fluoroplastics thin micro tube is tightly pressed against between the pressing plate and tube sheet It is set to fix.

The utility model has the beneficial effects that a kind of Novel fluorine plastic pipe formula liquid-liquid heat exchanger using the present invention, especially It is adapted in the extremely serious heat-exchanging state that should not use metallic recuperator of corrosivity, can be widely applied to chemical industry, light industry, system Liquid-liquid heat exchange process with strong corrosive medium in medicine, pesticide, alkaline, dyestuff, metallurgy and plating production；With structure letter Single, processing and it is easy to use, heat exchange efficiency is high, light weight, corrosion-resistant, service life is long, adaptability is good, has and is easy to modularization The advantages of.The heat exchanger can make heat transferring medium continue to flow through fluorine plastic tube the strong of the large volume in by tank therefor is heated or cooled The pending liquid of corrosivity, and constant temperature is kept after heating up or cooling to desirable value, pending liquid and other examinations under constant temperature The good effect of chemical reaction process or electrolytic process is completed in agent.Heat transferring medium inlet end and an outlet end uses fluoroplastics heat exchanger tube Flange is connect with the mode that pressing plate compresses, this tube sheet joint connection type so that the connection letter between heat-exchanging tube bundle and tube sheet Singly, conveniently, reliably, it is not easy to leak by the heat transferring medium of heat-exchanging tube bundle, it is ensured that liquid-liquid two-phase heat exchange safely may be used It leans on.It is easy to be individually replaced damaged fluoroplastics thin micro tube simultaneously, postpones the service life of heat exchanger.

Description of the drawings

Fig. 1 is the structural schematic diagram of fluoroplastics tubular type liquid-liquid heat exchanger；

Fig. 2 is the structural schematic diagram of limiting plate.

In figure：1- connecting flanges I；2- pressure plates Is；3- tube sheets I；4- tube sheets II；5- pressure plates IIs；6- connecting flanges II；7- is changed Heat pipe bundle；The vertical protect-ing frame structure II of 8- cuboids；9- small sircle holes；10- fluoroplastics thin micro tubes；The horizontal protecting frame of 11- cuboids Frame；12- limiting plates；The centers 13- poling slot；14- cover sheets；The vertical protect-ing frame structure I of 15- cuboids.

Specific implementation mode

As depicted in figs. 1 and 2, U-shaped heat-exchanging tube bundle 7 is made of more fluoroplastics thin micro tubes 10, heat-exchanging tube bundle 7 by The vertical protect-ing frame structure II 8 of cuboid, the vertical protect-ing frame structure I 15 of cuboid, the horizontal protect-ing frame structure 11 of cuboid, cover sheet 14 Etc. protective devices protection, 7 bottom horizontal portion of heat-exchanging tube bundle fixed limit is supported by limiting plate 12.The vertical protect-ing frame structure of cuboid The vertical protect-ing frame structure I 15 of II 8, cuboid, it the horizontal protect-ing frame structure 11 of cuboid, cover sheet 14, opens up on limiting plate 12 Array small sircle hole 9 convenient for the protection of soft heat-exchanging tube bundle 7, limit and carries out efficient heat exchange.

Limiting plate 12 makes 1-3 row/columns heat-exchanging tube bundle 7 pass through central poling slot 13 just；In the horizontal protect-ing frame structure of cuboid 11 in the width direction inside be welded and fixed or slot is fixed, 1~8 limiting plate 12 is set along its length, and spacing is distributed, limit Position 12 quantity of plate does not hang down into bottom with heat-exchanging tube bundle 7 and is limited, and is preferably preferred with pico- sagging serpentine-like curve-like.

One end of fluoroplastics thin micro tube 10 reaches the outside of tube sheet I 3 and is equipped with flange, and pressure plates I 2 passes through countersunk head spiral shell Nail is connect with tube sheet I 3, and pressure plates I 2 is pressed on tube sheet I 3, while the flange of fluoroplastics thin micro tube 10 tightly being pressed Fix fluoroplastics thin micro tube 10 between pressure plates I 2 and tube sheet I 3.The connection side of the other end of fluoroplastics thin micro tube 10 Formula is identical with this, repeats no more.Pressure plates I 2, tube sheet II 4, is equipped with and fluoroplastics thin-walled in pressure plates II 5 tube sheet I 3 10 corresponding trepanning of micro-pipe.The pressure that tube sheet I 3 is connect by connecting flange I 1 with heat transferring medium inlet tube, and abutted Plate I 2 presses to tube sheet I 3, the flange of compression and the fluoroplastics thin micro tube 10 between fixation clip I 2 and tube sheet I 3；Similarly, Tube sheet II 4 is connect with heat transferring medium outlet by connecting flange II 6.

Heat transferring medium in heat transferring medium inlet tube enters heat-exchanging tube bundle 7 through connecting flange I 1, pressure plates I 2, tube sheet I 3, And heat exchanging process occurs with pending corrosive liquid medium in by heat channel in fluoroplastics heat-exchanging tube bundle 7, later It passes sequentially through tube sheet II 4, pressure plates II 5, connecting flange II 6 and is discharged to heat transferring medium outlet.

Fluoroplastics thin micro tube 10 plays heat exchanger tube, and the fluoroplastics used is polytetrafluoroethylene (PTFE) (PTFE), tetrafluoro second One or both of alkene-perfluorinated alkoxy vinyl ether copolymer (PFA).Within the scope of a diameter of 4~20mm, most preferably 4 Within the scope of~10mm, pipe thickness≤1.0mm, such heat exchanger effectiveness higher.

This fluoroplastics tubular type liquid-liquid heat exchanger can be placed in (bobbin carriage) of different shapes by heat channel, can is by heat channel Cylindrical, cuboid or the square bodily form are most preferably more easy to matched cuboid or the square bodily form with heat-exchanging tube bundle 7, are heated Slot is whole or is made by the corrosion resistant material of heat channel inner liner material selection (such as PP, PE plastics).

The vertical protect-ing frame structure II 8 of cuboid, it the vertical protect-ing frame structure I 15 of cuboid, the horizontal protect-ing frame structure 11 of cuboid, protects Other engineering plastics (PE, PP plastics etc.) can also be used in the optional fluoroplastics of material of protecting cover plate 14, limiting plate 12；Cuboid hangs down Straight protect-ing frame structure II 8, the vertical protect-ing frame structure I 15 of cuboid, the horizontal protect-ing frame structure 11 of cuboid fuse welding side using heat expansion Formula connects, and cover sheet 14 is in horizontal 11 upper end of protect-ing frame structure of cuboid and the two is using heat expansion fusion welding manner connection.Pipe The optional fluoroplastics consistent with fluoroplastics thin micro tube 10 of material of plate I 3, tube sheet II 4, can also be used other engineering plastics (PE, PP plastics etc.)；Pressure plates I 2, pressure plates II 5 are made of fluorubber plate soft and that elasticity is good.

One heat-exchanging tube bundle 7 contains 50~500 fluoroplastics thin micro tubes 10, and one by can place 1-3 side by side in heat channel A heat-exchanging tube bundle 7, heat exchange area is up to 40m²More than, specifically depending on heat exchange capacity；This fluoroplastics tubular type liquid-liquid heat exchanger can It is installed in series and is used between by heat channel adjacent, power energy consumption can be substantially reduced in this way and improve heat exchange efficiency.

It should be understood by those skilled in the art that the utility model is not limited to the embodiments described above, above-mentioned embodiment party Only illustrate that the principles of the present invention, shape, named title of parts etc. can be different described in formula and specification, On the premise of not departing from the spirit and scope of the utility model, the utility model also has various change, variation, modification, is equal Replace and improve etc., it should be included within the protection domain of technical solutions of the utility model requirement.

Claims (2)

1. a kind of fluoroplastics tubular type liquid-liquid heat exchanger, includes the heat-exchanging tube bundle being made of more fluoroplastics thin micro tubes, both ends For heat transferring medium inlet end and an outlet end, which is characterized in that the U-shaped distribution of the heat-exchanging tube bundle, two-arm are hung down equipped with cuboid Straight protect-ing frame structure, bottom are equipped with the horizontal protect-ing frame structure of cuboid, limiting plate are fixed in the width direction in the horizontal protect-ing frame structure, The limiting plate be equipped with for heat-exchanging tube bundle by central poling slot, be equipped with cover sheet above the horizontal protect-ing frame structure, Array small sircle hole is opened up on the vertical protect-ing frame structure, horizontal protect-ing frame structure, limiting plate and cover sheet.

2. fluoroplastics tubular type liquid-liquid heat exchanger according to claim 1, which is characterized in that the inlet end and an outlet end Be separately connected inlet tube and outlet by connecting flange, the structure of the inlet end and an outlet end is identical, include tube sheet and Pressing plate is equipped with trepanning corresponding with fluoroplastics thin micro tube on the tube sheet, pressing plate, and the fluoroplastics of the heat-exchanging tube bundle are thin Wall micro-pipe passes through the tube sheet trepanning and forms flange, and the pressing plate is connect by sunk screw with the tube sheet, and will be described The flange of fluoroplastics thin micro tube, which is tightly pressed against between the pressing plate and tube sheet, makes it fix.