CN205332890U

CN205332890U - Ripple slab of pressure -bearing reinforcing

Info

Publication number: CN205332890U
Application number: CN201520890279.5U
Authority: CN
Inventors: 宋金虎; 李安军
Original assignee: Lanzhou Petroleum Machinery Research Institute
Current assignee: Lanzhou Petroleum Machinery Research Institute
Priority date: 2015-11-10
Filing date: 2015-11-10
Publication date: 2016-06-22
Anticipated expiration: 2025-11-10

Abstract

The utility model provides a ripple slab of pressure -bearing reinforcing, this ripple slab of is the rectangle structure, the length -width ratio LW=2.8 of this rectangle structure~3.0. The ripple slab is by five most components of mouth of pipe district of edge support district, the flow guiding areas who is in the heat transfer district that supports the inboard sealed district in district, middle part in the edge, the district both ends of conducting heat, flow guiding areas one side. The utility model discloses when having high heat transfer, low flow resistance and high trafficability performance, showing and improving the bearing capacity, be applicable to below the 3.0MPa, or have under the operating mode of great pressure oscillation.

Description

The corrugated cardboard sheet that a kind of pressure-bearing strengthens

Technical field

This utility model relates to the heat transfer element of a kind of heat transmission equipment to be designed and developed and processing and manufacturing field, refers specifically to the corrugated cardboard sheet that a kind of pressure-bearing of detachable plate type heat exchanger strengthens。

Background technology

Detachable plate type heat exchanger has heat transfer efficiency height, floor space is little, unpick and wash the advantages such as easy for installation, economical and energy saving, it is widely used in petrochemical industry, light industry and food, the field such as energy supply for metallurgy and energy-conserving and environment-protective, but the shortcoming of detachable plate type heat exchanger is also apparent from, operating pressure is lower than 2.5MPa, and pressure oscillation is little。

At present domestic most of template be only used for the operating mode of below 2.0MPa, the bearing capacity of plate is poor, seriously limits the application of dismountable plate type heat exchanger。In order to improve the load performance of complete machine, prevent leakage, common practice is to reduce to compress size, and this can cause plate and ripple gross distortion, plate can not reuse, shorten the service life of equipment, heat transfer property and do not reached the problems such as design objective by performance；Or increase the thickness of plate, so can significantly improve production cost。

Utility model content

This utility model provides the corrugated cardboard sheet that a kind of pressure-bearing strengthens, and has high heat transfer, low flow resistance and high trafficability performance, and significantly improves the bearing capacity of plate, it is adaptable to below 3.0MPa, or has under the operating mode of bigger pressure oscillation。

The technical scheme that this utility model adopts is:

The corrugated cardboard sheet that a kind of pressure-bearing strengthens, this corrugated cardboard sheet is rectangular configuration, length-width ratio L/W=2.8～3.0 of this rectangular configuration。

Described corrugated cardboard sheet by edge supports district, be in the seal area inside edge supports district, the heat transfer zone at middle part, the guiding region at two ends, heat transfer zone, side, guiding region mouth of pipe district five major part form。

Described corrugated cardboard sheet adopts herringbone corrugated plate, and gather double; two halfpace limits bubble in the edge supports district of this corrugated cardboard sheet, and two halfpaces are one group, and the four sides angle of halfpace is identical, and the centre of two halfpaces is the indenture of triangular-section, and the indenture degree of depth is the 1/2 of halfpace height；Halfpace intermediate cross-section width, the degree of depth and the node of heat transfer zone ripple, the depth of convolution are identical, and often the spacing of group double; two halfpace limits bubble is identical with the wave pitch of heat transfer zone ripple。

Described seal area is made up of a road sealing groove and two road sealing grooves；One road sealing groove is positioned at the periphery of the corrugated cardboard sheet inside edge supports district；Two road sealing grooves are positioned at the middle part of guiding region；A described road sealing groove and two road sealing grooves are trapezium structure, tilt angle gamma≤13 °。

A described road sealing groove is convex stupefied by several fonts or open trapezoid is convex stupefied or open-delta is convex stupefied is divided into two parts；These several fonts are convex stupefied or open trapezoid is convex stupefied or the convex stupefied height of open-delta is the 1/2 of one seal groove degree of depth, and width is the 1/2 of a road sealing groove width, 0 °≤β≤20 °, inclination angle。

The lambdoid ripple angle in described heat transfer zone is 83 °≤α≤98 °, complete machine assemble after two corrugated cardboard sheets angle 83 °≤≤98°。

The ripple's depth H of described corrugated cardboard sheet is 3.6～4.0mm, and degree of depth node ratio is 0.5～0.6。

This utility model significantly improves bearing capacity, it is adaptable to below 3.0MPa while having high heat transfer, low flow resistance and high trafficability performance, or has under the operating mode of bigger pressure oscillation。And corrugated cardboard sheet is one-body molded, single mode single seat, simple in construction, there is standardization, modularity, generalization feature, be suitable for batch production。

Accompanying drawing explanation

Fig. 1 is structure chart of the present utility model；

Fig. 2 is this utility model plate length-width ratio and complete machine pressure-bearing graph of a relation；

Fig. 3 is the corrugation pattern of Fig. 1 heat transfer zone；

Fig. 4 is the enlarged drawing in Tu1Zhong I district；

Fig. 5 is A-A profile in Fig. 4；

Fig. 6 is B-B profile in Fig. 4；

Fig. 6 a is a kind of distressed structure of B-B profile in Fig. 4；

Fig. 6 b is the another kind of distressed structure of B-B profile in Fig. 4；

Fig. 7 is a kind of rubber cushion cross-sectional structure recommended；

Fig. 8 is the ripple angle of heat transfer zone after plate assembles；

Fig. 9 is C-C profile in Fig. 4。

Detailed description of the invention

Described corrugated cardboard sheet is the one of detachable plate type heat exchanger plate, when complete machine assembles on the positive and negative reverse crossbeam being suspended between pressure strip of plate adhesive seal rubber cushion, being compressed by plate by fishbolt, medium passes in and out at the homonymy of plate, forms cold and hot medium channel by seal gasket。Rubber cushion is attached in spacer groove, and plate is supported by bubble point, forms inner chamber, so the pressure-bearing of complete machine is had vital effect by the rigidity of the density of rubber cushion seal groove structure, bubble point and support strength, integral slab bundle。

Below in conjunction with accompanying drawing, this utility model and effect thereof are described further。

Fig. 1 is plane figure schematic diagram of the present utility model, and corrugated cardboard sheet is rectangular configuration, and its length-width ratio is L/W=2.8～3.0, such length-width ratio complete machine is assembled after bearing capacity higher (Fig. 2 show plate length-width ratio with complete machine pressure-bearing graph of a relation)。The bearing capacity of length-width ratio increase complete machine also can increase as seen from Figure 2, and the pressure born when L/W=2.8～3.0 is the strongest, it is possible to reach 3.0MPa, has certain weakening afterwards。This is because the longitudinal rigidity of plate is ensured by hold-down bolt, horizontal rigidity can be subject to the impact of the many factors such as the deformation of the pressure of medium, the pulling force of sealing gasket and contact, and suitable length-width ratio can offset the impact of above-mentioned factor。

The corrugated cardboard sheet that a kind of pressure-bearing strengthens, this corrugated cardboard sheet by edge supports district 1, be in the heat transfer zone 3 inside the seal area 2 inside edge supports district 1, seal area 2 and in the middle part of plate, the guiding region 4 at two ends, heat transfer zone 3, side, guiding region 4 mouth of pipe district 5 five major part form, corner is R circular arc。

Fig. 3 is the structure diagram of heat transfer zone 3 in Fig. 1, and this heat transfer zone 3 and guiding region 4 all adopt herringbone corrugated, to ensure higher heat transfer efficiency。Herringbone corrugated can be single word, the patterns such as double word, the ripple angle of plate is 83 °≤α≤98 °, the heat transfer efficiency of herringbone corrugated is higher, the angle of the corner dimension of two plates and the hot mixed plate of soft or hard is close, and such ripple angle can strengthen heat transfer and reduce flow resistance and ensure that corrugated cardboard sheet has high heat transfer and the characteristic of low flow resistance；Meanwhile, the deformation that plate expands with heat and contract with cold extension ratio in machine and transverse direction is identical, reduces the stress of spacer groove plate, is favorably improved the rigid seal performance of entirety, thus improving the bearing capacity of complete machine。

Fig. 4 is I magnified partial view in Fig. 1, it can be seen that the top view of edge supports district halfpace bubble point, the structure of herringbone ripple, the more convenient position checking A-A section, B-B section and C-C section, and ripple angle [alpha] simultaneously。

Fig. 5 is A-A profile in Fig. 4, namely the schematic cross-section of double; two halfpace limits bubble in edge supports district 1。This pair of halfpace limit two halfpaces of bubble kind are one group of limit bubble, and the four sides angle of halfpace is identical, the centre of two halfpaces be the indenture of triangular-section for strengthening rigidity, the indenture degree of depth is the 1/2 of halfpace height。Halfpace upper surface is square, and halfpace intermediate cross-section width, the degree of depth and the node of heat transfer zone ripple, the depth of convolution are identical, and the spacing that often group limit is steeped is identical with the wave pitch of heat transfer zone ripple。Assembling back edge Support has two bubble points mutually to support, and the ratio of rigidity single-point support of marginal zone substantially increases；Such limit bubble density and the degree of depth mainly aim at the rigidity improving edge supports district 1, so as to be less susceptible to deform because of the pressure effect of rubber cushion, increase the resistance that rubber cushion is extruded。Employing double-contact supports, and Support width is 1.5～2.0 times of single-point support, improves the rigidity in edge supports district 1 equally, thus improving rigidity and the sealing property of entirety, improves the bearing capacity of complete machine。

Described seal area 2 is made up of a road sealing groove 201 and two road sealing grooves 202；One road sealing groove 201 is positioned at the inner side in edge supports district 1, and for the sealing of plate periphery and the mouth of pipe, two road sealing grooves 202 are positioned at the middle part of guiding region 4, in " people " font, is used for strengthening heat transfer zone 3(and includes a part of guiding region) sealing。This road sealing groove 201 and two road sealing grooves 202 are trapezium structure, tilt angle gamma≤13 °。The width of one road sealing groove 201 is 1.5～2.0 times of common plate seal groove width。This Radial resistant force being favorably improved pad and sealing property, improve the bearing capacity of complete machine。

Fig. 6, Fig. 6 a and Fig. 6 b is three kinds of distressed structure schematic diagrams of B-B profile in Fig. 4, namely the sectional view of a road sealing groove 201。One road sealing groove 201 of corrugated cardboard sheet is divided into two parts by several fonts convex stupefied (shown in Fig. 6) or open trapezoid convex stupefied (shown in Fig. 6 a) or open-delta convex stupefied (shown in Fig. 6 b), be equivalent to two seal gaskets of application, too increase the width of a road sealing groove 201 simultaneously, width is 1.5～2.0 times of common plate seal groove, contributes to sealing。Recommend seal gasket shape such as Fig. 7 (convex stupefied for several fonts)。Convex stupefied increase improves the Radial resistant force of rubber cushion, it is prevented that rubber cushion is extruded from seal groove due to the effect of plate internal pressure。In seal groove, several fonts are convex stupefied or open trapezoid is convex stupefied or the convex stupefied height of open-delta is the 1/2 of the seal groove degree of depth, 0 °≤β≤20 °, inclination angle, such design contributes to pad and is attached in spacer groove, pad resistance radially is bigger, it is favorably improved sealing property, thus improving the bearing capacity of complete machine。One road sealing groove 201 and two road sealing grooves 202 are trapezium structure, tilt angle gamma≤13 °, and such design adds the Radial resistant force of rubber cushion equally, contributes to preventing rubber cushion to be extruded, and improve sealing and bearing capacity。

Fig. 7 is a kind of rubber cushion cross-sectional structure recommended。Rubber cushion cross section to be determined according to the cross section of spacer groove, considers compressibility and the compression factor of rubber cushion simultaneously, it is recommended here that the compression factor of rubber cushion is 25%, to strengthen sealing raising bearing capacity。

Fig. 8 is the ripple angle of heat transfer zone after plate assembles。Plate assemble after two corrugated cardboard sheets angle 83 °≤≤ 98 °, the angle of the corner dimension of two plates and the hot mixed plate of soft or hard is close, and such design ensure that plate has high heat transfer and the characteristic of low flow resistance。

Fig. 9 is C-C profile in Fig. 4, namely the sectional view of herringbone ripple。The ripple's depth H of plate is 3.6～4.0mm, degree of depth node ratio is 0.5～0.6, the ripple of plate and support bubble point density substantially increase, which ensure that medium by property, the degree of depth node ratio of common corrugated cardboard sheet is 0.2～0.4, and the plate ripple of high depth node ratio is relatively deep closeer, number of transfer units improves, heat transfer efficiency is higher, and plate is more rigid, the pressure-bearing better effects if of complete machine。

The processing and manufacturing program of described corrugated cardboard sheet is the same with other detachable plate type heat exchanger corrugated cardboard sheet, by mould molding, simple and convenient, is suitable for batch production。

One preferred embodiment: the length L=880mm of plate, width W=300mm, length-width ratio is 2.93, corner apertures is sized to Φ 82, and more than one word of Sealing selection is convex stupefied, seal groove tilt angle gamma=7 °, seal groove is from sheet edges 20mm, adopt single font, herringbone ripple angle α=90 °, the ripple angle of two plates after assembling=90 °, ripple's depth H=4.0mm, node length 7.07mm, degree of depth node ratio is 0.566, sheet 0.6mm。

Claims

1. the corrugated cardboard sheet that a pressure-bearing strengthens, it is characterised in that: this corrugated cardboard sheet is rectangular configuration, length-width ratio L/W=2.8～3.0 of this rectangular configuration；This corrugated cardboard sheet by edge supports district (1), be in edge supports district (1) inner side seal area (2), the heat transfer zone (3) at middle part, the guiding region (4) at heat transfer zone (3) two ends, guiding region (4) side mouth of pipe district (5) five major part form。

2. the corrugated cardboard sheet that a kind of pressure-bearing as claimed in claim 1 strengthens, it is characterized in that: described corrugated cardboard sheet adopts herringbone corrugated plate, gather double; two halfpace limits bubble in the edge supports district (1) of this corrugated cardboard sheet, two halfpaces are one group, the four sides angle of halfpace is identical, the centre of two halfpaces is the indenture of triangular-section, and the indenture degree of depth is the 1/2 of halfpace height；Halfpace intermediate cross-section width, the degree of depth and the node of heat transfer zone ripple, the depth of convolution are identical, and often the spacing of group double; two halfpace limits bubble is identical with the wave pitch of heat transfer zone ripple。

3. the corrugated cardboard sheet that a kind of pressure-bearing as claimed in claim 1 strengthens, it is characterised in that: described seal area (2) are made up of a road sealing groove (201) and two road sealing grooves (202)；One road sealing groove (201) is positioned at the periphery of the corrugated cardboard sheet of inner side, edge supports district (1)；Two road sealing grooves (202) are positioned at the middle part of guiding region (4)；A described road sealing groove (201) and two road sealing grooves (202) are trapezium structure, tilt angle gamma≤13 °。

4. the corrugated cardboard sheet that a kind of pressure-bearing as claimed in claim 3 strengthens, it is characterised in that: a described road sealing groove (201) is convex stupefied by several fonts or open trapezoid is convex stupefied or open-delta is convex stupefied is divided into two parts；These several fonts are convex stupefied or open trapezoid is convex stupefied or the convex stupefied height of open-delta is the 1/2 of a road sealing groove (201) degree of depth, and width is the 1/2 of a road sealing groove (201) width, 0 °≤β≤20 °, inclination angle。

5. a kind of pressure-bearing as claimed in claim 1 strengthen corrugated cardboard sheet, it is characterised in that: described heat transfer zone (3) lambdoid ripple angle is 83 °≤α≤98 °, complete machine assemble after two corrugated cardboard sheets angle 83 °≤≤98°。

6. the corrugated cardboard sheet that a kind of pressure-bearing as claimed in claim 1 strengthens, it is characterised in that: the ripple's depth H of described corrugated cardboard sheet is 3.6～4.0mm, and degree of depth node ratio is 0.5～0.6。