CN203642769U

CN203642769U - Welded plate heat exchanger sheet

Info

Publication number: CN203642769U
Application number: CN201320836263.7U
Authority: CN
Inventors: 孙英军; 孙秀丽; 檀庆元
Original assignee: SIPING VIEX HEAT EXCHANGE EQUIPMENT CO Ltd
Current assignee: SIPING VIEX HEAT EXCHANGE EQUIPMENT CO Ltd
Priority date: 2013-12-18
Filing date: 2013-12-18
Publication date: 2014-06-11
Anticipated expiration: 2023-12-18

Abstract

The utility model discloses a welded plate heat exchanger sheet in the field of heat exchangers. The sheet is a rectangular sheet provided with trapezoid oblique corrugations, a U-shaped gap is arranged at the center of one side of the sheet, a horizontal partition rib extending towards the corresponding side is arranged at the symmetric center of the U-shaped gap, and welding sealing edges are respectively arranged on the U-shaped gap and other three sides of all of sides of the sheet. By adopting the structure, the rectangular sheet is skillfully divided into an upper portion and a lower portion, accordingly a U-shaped channel is inward formed in the sheet, upper and lower openings are formed outside the sheet, the contact area between the flowing way length and a heat exchange medium can be further increased based on the trapezoid oblique corrugations, and the heat exchange efficiency is remarkably improved. In addition, a sealing gasket is omitted, and the high-temperature, high-pressure and anti-corrosion capability of a heat exchanger is effectively improved. Furthermore, the welded plate heat exchanger sheet has the advantages of being novel in concept, reasonable in structural design, reliable in working performance, suitable for popularization and the like.

Description

Welded plate heat exchanger plate

Technical field

The utility model relates to a kind of heat exchange plate of heat exchanger, relates to specifically a kind of heat exchange plate of welded plate type heat exchanger.

Background technology

The sixties in last century plate type heat exchanger is Chinese by external introduction, nearly 50 years so far.Grow out of nothing and expand from small to large, and because plate type heat exchanger application is constantly widened, various Novel plate heat exchangers continue to bring out, the market at home and abroad of being accepted and be in great demand by people gradually.The core component of plate type heat exchanger is exactly heat exchange plate, and the heat exchange plate using is at present all generally to have equally distributed oblique ripple, be provided with gasket seal groove, and the medium being made up of respective side or the upper inferior horn hole of plate is imported and exported around plate.The feature of this plate is that gasket seal between backup plate sheet and the clamping force of plate realize seal and pressure bearing, and due to the restriction of gasket seal material, the heat exchanger being made up of this plate can not bear too high temperature and pressure.And its MEDIA FLOW, to being that flow channel length is limited by a side direction opposite side, cannot reach better heat exchange efficiency.

Summary of the invention

The utility model is for a kind of welded plate heat exchanger plate is provided, and is mainly to solve the heat exchanger being made up of existing plate can not bear the problem that too high temperature and pressure and heat exchange efficiency are low.

The utility model is the rectangular plate with Trapezium oblique wave line, be provided with U-shaped breach at described plate Yi Ce center, be provided with the horizontal muscle extending to respective side in U-shaped breach symmetrical centre, and on another three limits of U-shaped breach and plate periphery, welding edge sealing be set respectively.

This utility model is owing to having taked Trapezium oblique wave line and the welding edge sealing structure of U-shaped breach, transverse horizontal muscle and the periphery of uniqueness to organically combine, dexterously rectangular plate top and the bottom are separated, thereby make the plate being formed by this plate form U-shaped passage and two outside upper and lower openings to inside, the contact area that can further increase flow channel length and heat transferring medium on Trapezium oblique wave line basis, significantly improves heat exchange efficiency.And avoid using gasket seal, effectively improve heat exchanger and bear high temperature, high pressure and corrosion resistance.In the time of assembling heat exchanger, the plate that plate of the present utility model is formed is to being fixedly connected with pipe flange through water box simultaneously, and can further reduce Tube-sheet Welding time, internal stress is residual, avoids producing the craze and transfiguration of tube sheet, improves heat exchanger applications performance.The advantage such as this invention has inventive concept novelty, reasonable in design, reliable working performance, be applicable to promoting.Compared with prior art, there is outstanding substantive distinguishing features and significant progressive.

Accompanying drawing explanation

Fig. 1 is sheet structure schematic diagram;

Fig. 2 is that plate is to side view;

the specific embodiment

Welded plate heat exchanger plate of the present utility model is as shown in Figure 1 a kind of novel heat exchange plate.Its entirety is a rectangle, is provided with equally distributed Trapezium oblique wave line (object of Trapezium oblique wave line setting is to increase medium contact area) 1 in rectangular plate, and 1 liang of angle of heel of this Trapezium oblique wave line is 45 °, ripple pitch 15mm.Be provided with U-shaped breach 2 at the rectangular plate Yi Ce center with Trapezium oblique wave line 1, be provided with the horizontal muscle 3 extending to respective side in U-shaped breach 2 symmetrical centre, and establish respectively welding edge sealing on another three limits 4 of U-shaped breach 2 and plate periphery.

Use two plates of this plate relatively to utilize seam welder to carry out respectively roll welding crimping to 4 positions, another three limit of horizontal muscle 3, U-shaped breach 2 and plate periphery, another three limits 4 are sealed, U-shaped breach 2 forms the plate of two symmetrical opening compositions up and down to (as Fig. 2).By some plates, two openings of superimposed its symmetry of plate bundle forming are pooled to respectively to upper and lower two water boxes, form and import and export passage.And two passages communicate in inside, left side.Thereby upper and lower two water boxes are fixedly connected with pipe flange and have formed the welding core body being made up of plate of the present utility model.In the plate bundle both sides that form welding core body, clamping plate is installed, and is fixedly clamped with fastening arm-tie set between fastening bolt and both sides clamping plate.Then apply connecting bolt housing, welding core body and end socket are connected into entirety, and in end socket, add central dividing plate point journey.

The heat exchanger that plate of the present utility model forms compared with prior art, not only significantly improves design pressure and design temperature, obviously improves the effective rate of utilization of plate width by the design of acerous hole and guiding region on plate face.And the plate that is arranged on of the horizontal muscle of plate internally forms .U type and reflux, multiple has improved fluid course length, makes medium temperature difference application less.And then significantly improve heat exchange efficiency.

Claims

1. a welded plate heat exchanger plate, it is characterized in that: described plate is the rectangular plate with Trapezium oblique wave line (1), be provided with U-shaped breach (2) at described plate Yi Ce center, be provided with the horizontal muscle (3) extending to respective side in U-shaped breach (2) symmetrical centre, and on another three limits (4) of U-shaped breach (2) and plate periphery, welding edge sealing be set respectively.