CN2415336Y

CN2415336Y - Heat exchanger

Info

Publication number: CN2415336Y
Application number: CN 00209170
Authority: CN
Inventors: 刘澄清
Original assignee: Individual
Current assignee: SHANGHAI FANQING ENVIRONMENT ENGINEERING Co Ltd
Priority date: 2000-04-17
Filing date: 2000-04-17
Publication date: 2001-01-17
Anticipated expiration: 2010-04-17

Abstract

The utility model relates to a heat exchanger, which comprises heat exchanging plates which are mutually staggered in superposition. The heat exchanging plates are provided with inlets of cold fluid, outlets of cold fluid, outlets of hot fluid, and inlets of hot fluid. The heat exchanging plates are provided with a plurality of bulges; a bulge part and a concave part which is corresponding to the bulge part are respectively formed by each bulge on both sides of the heat exchanging plates. The bulge part of each heat exchanging plate is corresponding to the concave part of another heat exchanging plate. The space between the bulge part and the concave part is provided with spacer components. Because the bulge part and the concave part on both sides of the heat exchanging plates are mutually corresponding, the fluid is in a turbulent state, the heat transferring speed is uniform and fast, and general heat transferring efficiency is high.

Description

Heat exchanger

The utility model relates to the employed heat exchanger plates of a kind of heat exchanger, particularly interchanger.

CN2254537Y discloses the board-like high-performance heat exchanger of a kind of two-sided bubble, and it mainly comprises two imports, two outlets, fixed charge method end plate, movable end plate and bodies, uses screw rod and nut that fixed charge method end plate, body and movable end plate are combined into one.Body constitutes by two-sided bubble plate is superimposed, and two-sided bubble plate is provided with the sphere of marshalling.Since sphere be protruding-it is protruding that relatively recessed-recessed protruding-protruding relative side liquid is a turbulent flow relatively, heat transfer rate is fast, and an adjacent side be recessed-it is recessed that fluid is for remaining in a standstill relatively, heat transfer rate is slow, this layout is had a greatly reduced quality total heat transfer rate, makes total heat transfer efficiency lower.In addition, existing heat exchanger plates sealing surface is smooth, and the easy pressurized of sealing gasket is extruded.

The purpose of this utility model provides a kind of heat exchange efficiency height, the heat exchanger plates of good seal.

Be used to realize a kind of heat exchanger of the utility model purpose, has stacked heat exchanger plates mutually, on heat exchanger plates, offer the outlet of cold fluid import and cold fluid, hot fluid outlet and hot fluid import, the some projectioies of compacting on heat exchanger plates, each projection forms a bossing and one and the corresponding pit portion of bossing respectively on the two sides of heat exchanger plates, the bossing of each heat exchanger plates is relative with the pit portion of another heat exchanger plates, between bossing and pit portion distance member is set.

Further solution of the present utility model comprises;

Distance member is made of small embossment that is pressed on projection or pit; Can also be by constituting at the top of bossing or the bottom welding cushion block of pit portion.

Around the import and export of heat exchanger plates, the periphery of heat exchanger plates is suppressed with scraggly sealing surface;

The protruding phase place of heat exchanger plates is identical or opposite;

At the heat exchanger plates periphery opposite projection of some phase places and pit are set, projection and the pit opposite by phase place form the stop portions that prevents that sealing gasket from outwards moving.

The utility model is relative owing to the heat exchanger plates both sides are male-female, and fluid is turbulent flow, and heat transfer rate is all fast, and total heat transfer efficiency is higher.

Describe the utility model in detail below in conjunction with accompanying drawing.

Fig. 1 is the opposite layout schematic diagram of the protruding phase place of the utility model heat exchanger plates, wherein, and band small embossment on the projection.

Fig. 2 is the identical layout schematic diagram of the protruding phase place of the utility model heat exchanger plates, wherein, and band small embossment on the projection.

Fig. 3 is the opposite layout schematic diagram of the protruding phase place of the utility model heat exchanger plates, wherein, and band small rut on the projection.

Fig. 4 is the identical layout schematic diagram of the protruding phase place of the utility model heat exchanger plates, wherein, and band small rut on the projection.

Fig. 5 is the floor map of the heat exchanger plates of heat exchanger of the present utility model.

Fig. 6 is the heat exchanger plates peripheral sealing surface and imports and exports peripheral concavo-convex schematic diagram.

Fig. 7 is the cross-sectional schematic along B-B section among Fig. 6.

Fig. 8 is the enlarged diagram by the distance member of band small embossment on projection.

Fig. 9 is the part sectioned view of the heat exchanger plates of heat exchanger of the present utility model.

Plate type heat exchanger of the present utility model, the same with existing heat exchanger, comprise heat exchanger plates 1 (see figure 1), and unshowned sealing gasket, hold down gag, cold fluid import, cold fluid outlet, hot fluid import, hot fluid outlet and bracing frame.

Referring to Fig. 1, the opposite projection 7 of the some phase places of compacting on the heat exchanger plates 1, projection is sphere shape or polyhedron shape, the phase place of adjacent protrusion 7 is opposite, with projection 7 relative one sides is pit 8, compacting small embossment 20 (seeing Fig. 8 for details) on spherical surface hill, small embossment 20 plays interval action between two heat exchanger plates, unimpeded to guarantee the passage between two heat exchanger plates.Three heat exchanger plates 1 are stacked among the figure, form heat exchanger channels 10 between heat exchanger plates,

Embodiment illustrated in fig. 2 and embodiment illustrated in fig. 1 basic identical, the phase place of the adjacent protrusion 7 on heat exchanger plates 1 that different is is identical.In the utility model, identical parts or act on identical part and represent with identical label.

The similar Fig. 1 of Fig. 3, different is to constitute at the pit 21 of the distance member that is provided with between bossing 7 and the pit portion 8 by compacting on projection 7.

Embodiment illustrated in fig. 4 and embodiment illustrated in fig. 3 basic identical, the phase place of the adjacent protrusion 7 on heat exchanger plates 1 that different is is identical.

The distance member that is provided with between bossing 7 and pit portion 8 can also be the welded top cushion block at bossing, or at the bottom of pit portion 8 welding cushion block.

Referring to Fig. 5 and 6, heat exchanger plates 1 has the perforate 5 of cooling hot fluid turnover, and 5 form sealing surface 4 on every side in the hole, forms peripheral sealing surface 6 at heat exchanger plates 1 periphery, forms scraggly surface by compacting, sandblast or polishing on the sealing surface 4 and 6.In the figure, black real point 7 is a bossing, and white point 8 is a pit portion, and this embodiment is that adjacent protrusion 7 phase places are opposite, and label 3 hangs mouth for dove-tail.The periphery in the periphery of heat exchanger plates 1 and four holes 5 can suppress some protruding 41 or pit 42 (see figure 7)s, projection or pit can be sphere, rectangle or other is polygonal, projection 41 that utilization is arranged alternately or pit 42 form stop portions, form sealed groove at bossing 7 and pit portion 8 with projection 41 or pit 42 thus, this groove is as the sealing surface 6 of placing seal member, and the height (degree of depth of pit) of projection is enough to stop the sealing gasket (not shown) to be extruded.

Referring to Fig. 7, sealing surface low-pressure side at heat exchanger plates, or the peripheral sealing surface outside, sealing surface inboard, hole, near sealing surface setting (the preferably closely arranging) projection 41 that some phase places are opposite, 42, this

projection

41,42 can be circle, rectangle, triangle, star or other geometry, is used to stop that pad is stressed out.

In addition, be stressed out for stopping pad, the heat exchanger plates periphery can be folded into nearly an angle of 90 degrees.

Referring to Fig. 8, the interval between small embossment 20 formation two heat exchanger plates 1 of bossing 7 tops compacting, thus guarantee the unimpeded of path 10.

Fig. 9 is the part sectioned view of the heat exchanger plates of heat exchanger of the present utility model, and what represent among the figure is a kind of installation form of the sealing gasket 43 of heat exchanger plates.Sealing surface low-pressure side at heat exchanger plates, near sealing surface 6 (preferably closely arranging) projection 41 and pit 42 that some phase places are opposite is set, these projectioies or pit are preferably formed by punching press, and projection 41 and the pit 42 opposite by phase place form the stop portions 40 that prevents that sealing gasket 43 from outwards moving.

The same with existing heat exchanger, some heat exchanger plates 1 that the utility model is described can be stacked together, between heat exchanger plates, form several cold fluid chambers and hot fluid chamber, in cold (heat) fluid chamber, with the corresponding hole of cold (heat) fluid import and export notched sealing gasket is set, make cold (heat) fluid or flow out cold (heat) fluid chamber, not notched sealing gasket is set, stop cold fluid and hot fluid to be ganged up with the corresponding hole of heat (cold) fluid import and export by the inflow of sealing gasket breach; Protruding convex-concave between the heat exchanger plates 1 is relative; Two increased pressure boards of the stacked usefulness of some heat exchanger plates (fixedly increased pressure board and movable increased pressure board) tightly force together, increased pressure board is made with thick sheet metal, non-metal board or composite plate, inner surface is smooth, or corresponding projection of convex-concave or pit on setting and the heat exchanger plates.For the small size heat exchanger plates, four of available cold and hot fluid into and out of the double hold-down bolt of doing of pipe, being about to four pipes is fixed on fixedly on the increased pressure board, on four root canal walls, have inlet and screw thread, several heat exchanger plates are stacked to fixedly on the increased pressure board, add movable increased pressure board, put the O RunddichtringO, fastening with nut.For the large tracts of land heat exchanger plates, need around heat exchanger plates with some bolted fixedly increased pressure board and movable increased pressure board, cold and hot fluid is connected fixedly by flange on the increased pressure board into and out of pipe, for ease of installing, overhauling, fixedly increased pressure board, support column, crossbeam are made bracing frame in utilization, with the bracing frame bottom one cross section being set respectively below entablature is triangle or other polygon slide rail, when installing and overhauling, heat exchanger plates and movable increased pressure board can slide on slide rail by hanging mouth 3, certainly, also slide rail can only be set.Cold fluid enters the cold fluid chamber from entering pipe, the heat of efficient absorption hot fluid (heat of cooling fluid) under some projectioies and bending channel effect, and the cold fluid discharge pipe that the cold fluid after the heat absorption is provided with through the diagonal angle is discharged; Hot fluid enters the hot fluid chamber from the pipe that enters that is arranged on the opposite, and efficient release realizes efficient heat exchange for cold fluid heat (heats cold fluid) under some projectioies and bending channel effect.The pressure reduction that changes cold fluid chamber and hot fluid chamber can prevent blocked.

Claims

1. heat exchanger, this heat exchanger has stacked heat exchanger plates mutually, on heat exchanger plates, offer the outlet of cold fluid import and cold fluid, hot fluid outlet and hot fluid import, the some projectioies of compacting on heat exchanger plates, each projection forms a bossing and one and the corresponding pit portion of bossing respectively on the two sides of heat exchanger plates, it is characterized in that, the bossing of each heat exchanger plates and the pit portion of another heat exchanger plates are oppositely arranged, and between bossing and pit portion distance member are set.

2. heat exchanger according to claim 1 is characterized in that said distance member is made of the small embossment that is pressed on said projection.

3. heat exchanger according to claim 1 is characterized in that said distance member is made of the pit that is pressed on said projection.

4. heat exchanger according to claim 1 is characterized in that, said distance member is made of the welded top cushion block at bossing.

5. heat exchanger according to claim 1 is characterized in that, said distance member is by constituting at the bottom of pit portion welding cushion block.

6. heat exchanger according to claim 1 is characterized in that, forms scraggly sealing surface around said heat exchanger plates periphery and the import and export.

7. heat exchanger according to claim 1 is characterized in that, at said heat exchanger plates periphery with around importing and exporting opposite projection of some phase places and pit is set, and projection and the pit opposite by phase place form the stop portions that prevents that sealing gasket from outwards moving.

8. heat exchanger according to claim 1 is characterized in that, said heat exchanger plates periphery is converted into nearly an angle of 90 degrees.

9. according to any described heat exchanger among the claim 1-8, it is characterized in that said protruding phase place is opposite.

10. according to any described heat exchanger among the claim 1-8, it is characterized in that said protruding phase place is identical.