CN2876674Y - Efficient pipe-plate heat exchanger - Google Patents

Abstract

The utility model relates to an efficient pipe-plate heat exchanger providing partition periodical perturbation heat exchange for two liquid media with different temperature, which comprises a square casing with inside heat exchange tube bundle, a front channel box and a back channel box; wherein, the square casing is provided with shell pass medium intake and outlet, the front channel box is provided with tube pass medium intake and outlet. The utility model is characterized in that the front channel box and the back channel box are positioned at the two ends of the square casing; the two ends of the heat exchange tube bundle, with internal and external roughnesses, are expandedly connected or welded on a pipe plate; inside a drum a plurality of vertical shell pass guide plate are mounted at equal interval; a shell pass clapboard is positioned inside the square casing; and shell pass clapboards are respectively mounted inside the front channel box and the back channel box. The utility model has the advantages of compact structure, small floor space, good loading adjustable performance, good resistance to high temperature and high pressure, easy operation, scale proof, high heat efficiency and long service life.

Description

The high efficiency plate pipe heat exchanger

Technical field

The utility model belongs to the heat transmission equipment technical field, relates to a kind of heat exchanger that is used for two kinds of fluid at differing temperatures media are carried out the heat exchange of partition periodic disturbance formula.

Background technology

At present there are three kinds of shell-and-tube heat exchanger, plate type heat exchanger and spiral heat exchangers this area at the main heat exchanger of usefulness, and wherein the use with shell-and-tube heat exchanger is the most extensive.Shell-and-tube heat exchanger has container casing and adopts the common vessel board making, can bear advantages such as HTHP and operation maintenance convenience, but because exist that heat transfer coefficient is lower, deficiency such as steel consumption is big, external form and floor space are big, it is promoted the use of is subjected to very big obstruction.In addition, because existing shell-and-tube steam water heat exchanger is low to the utilization rate of heating agent (steam), cause the condensate water discharge temperature and compare higher by the temperature value of relevant work pressure and other parameters index Design, the heat energy utilization rate is low, and waste is big, so usually will be at parts such as condensate water exit increase steam traps, water-water heat exchanger perhaps is installed in series, so just make system complicated more, floor space increases, the also corresponding increase of cost investment.The plate type heat exchanger product has also obtained using in recent years morely, its advantage is compact conformation, saving floor space, heat transfer coefficient is bigger when the heat exchange that is used between the liquid, but the plate that board-like heat exchanger is is with the compacting of expensive metal such as stainless steel, titanium steel, need to be equipped with a large amount of nonmetal rapid wear packing rings in the installation, generally be not suitable for the heat-exchange system of high temperature, gases at high pressure, maintenance cost is higher; In addition, plate type heat exchanger is limit because of its structure, when being used for vapour-water heat-exchange system, passing and can will descend to some extent by usage factor.Spiral heat exchanger is some the shortcoming because of existing on its structure then at present, and use amount is less relatively.

The utility model content

The purpose of this utility model is to overcome the defective that prior art exists, so provide that a kind of compact conformation, station account for that the room floor space is little, load adjustment ability good, high temperature high voltage resistant, easy to operate, less scaling, heat transfer coefficient is big, the thermal efficiency is high and can carry out the high efficiency plate pipe heat exchanger that flow process is freely selected according to the operating mode difference.

Technical solution for achieving the above object is such: the high efficiency plate pipe heat exchanger that is provided is by the interior square housing that is provided with heat-exchanging tube bundle and preceding, rear header constitutes, the square housing is provided with import of shell side medium and outlet, front header is provided with import of tube side medium and outlet, it is characterized in that: preceding, rear header is installed in square housing two ends by tube sheet, have the inside and outside male and fomale(M﹠F) heat-exchanging tube bundle the two ends expanded joint or be welded on the tube sheet, in cylindrical shell, uniformly-spaced be provided with the vertical shell side deflector of polylith, in the square housing, be provided with the shell side dividing plate, preceding, be respectively equipped with the shell side dividing plate in the rear header.

Compared with prior art, the utility model has the advantages that:

1, heat transfer efficiency height, heating agent utilization rate height, load adjustment ability are good: owing to be provided with pass partition and increased dividing plate and deflector in bobbin carriage in housing, two media is fully contacted in heat exchanger to be exchanged, reduced the stagnant area, stacked-plate heat exchanger heat energy utilization than existing shape has improved a lot, improved heat transfer boundary condition, can guarantee that two kinds of heat transferring mediums all can choose suitable flow velocity under the situation of any flow-rate ratio.

2, the high temperature high voltage resistant performance is good, sturdy and durable, easy to maintenance: because heat-exchanging tube bundle and bobbin carriage plate are made by expanded joint or Welding Structure, housing adopts flange bolt to be connected with bobbin carriage, does not have easily worn part in the device, dismounting is easy to maintenance, can bear HTHP, sturdy and durable, be easy to safeguard.

3, compact conformation, floor space are little, can make full use of the space and reduce around operating walk way, reduce the station investment.

4, during vapour-water heat exchange, heating agent (steam) all can be converted into condensate water, improve the heating agent utilization rate; The condensate water leaving water temperature can reach the minimum temperature (steam trap or water-water heat exchanger) of setting, has reduced the equipment cost investment.

5, utilizing heat exchanger tube inside and outside male and fomale(M﹠F) fluid medium to produce strong ripple disturbs, conduct heat fully, simultaneously because the self-compensation situation ability of heat exchanger tube, unstressed concentrating, less scaling, solve expanding with heat and contract with cold of traditional product existence in the past and equipment has been produced the problem of harm, increased the service life of equipment.

Description of drawings

Accompanying drawing is the structural representation of a specific embodiment of the utility model.

The specific embodiment

As shown in the figure, efficient return-stroke type heat exchanger described in the utility model by front header 1, square housing 2, front and back tube sheet 3, shell side deflector 4, shell side dividing plate 5, bobbin carriage shell side dividing plate 6, tie-strut 11, heat-exchanging tube bundle 12, refer to that seat 13 and rear header 15 etc. form.Forward and backward bobbin carriage 1,15 is installed in the two ends of square housing 2 by tube sheet 3, is provided with shell side medium import 7 and outlet 8 on square housing 2, is provided with shell import 9 and outlet 10 on front header 1.Heat-exchanging tube bundle 12 with inside and outside male and fomale(M﹠F) is processed into and by expanded joint or be welded on the tube sheet 3 by seamless steel pipe, high-quality copper pipe or stainless steel are spiral type corrugated.Uniformly-spaced be provided with the vertical shell side deflector 4 of polylith in square housing 2, the quantity of shell side deflector 4 is selected according to the needs of runner, lattice.Shell side dividing plate 5 is horizontally installed on the position that is positioned in the housing 2 under the heat-exchanging tube bundle 12.Forward and backward bobbin carriage pass partition 6 is separately positioned in the forward and backward bobbin carriage 1,15, and dividing plate can be selected to determine according to the temperature of medium and the difference of flow.The adapter of each import and export (7,10,11,13) of heat exchanger can make straight tube according to the installation site or 90 ° of elbows are drawn by (side) portion on the barrel shell.Label 14 is a sewage draining exit in the accompanying drawing.

Claims (2)

1, a kind of high efficiency plate pipe heat exchanger, by the interior square housing (2) that is provided with heat-exchanging tube bundle (12) and preceding, rear header (1,15) constitute, square housing (2) is provided with shell side medium import (7) and outlet (8), front header (1) is provided with shell import (9) and outlet (10), before it is characterized in that, rear header (1,15) be installed in square housing (2) two ends by tube sheet (3), have the inside and outside male and fomale(M﹠F) heat-exchanging tube bundle (12) the two ends expanded joint or be welded on the tube sheet (3), in square housing (2), uniformly-spaced be provided with the vertical shell side deflector of polylith (4), in housing (2), be provided with shell side dividing plate (5), preceding, rear header (1,15) be respectively equipped with bobbin carriage shell side dividing plate (6) in.

2, efficient return-stroke type heat exchanger as claimed in claim 1 is characterized in that heat-exchanging tube bundle (12) made and expanded joint or be welded on the tube sheet (3) by seamless steel pipe, copper pipe or stainless steel tube.

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