CN102798305A - Semi-welded plate heat exchanger - Google Patents
Semi-welded plate heat exchanger Download PDFInfo
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- CN102798305A CN102798305A CN2011101350668A CN201110135066A CN102798305A CN 102798305 A CN102798305 A CN 102798305A CN 2011101350668 A CN2011101350668 A CN 2011101350668A CN 201110135066 A CN201110135066 A CN 201110135066A CN 102798305 A CN102798305 A CN 102798305A
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Abstract
The invention relates to a semi-welded plate heat exchanger which comprises a fixed clamping plate, a movable pressing plate, an upper guide rod, a lower guide rod, a supporting column, semi-welded plate pairs, sealing gaskets and a clamping bolt pair. The fixed clamping plate, the movable pressing plate, the upper guide rod, the lower guide rod and the supporting column form the frame of the heat exchanger. A plurality of semi-welded plate pairs are assembled by the sealing gaskets to form a plate which is arranged between the fixed clamping plate and the movable pressing plate and fixed by the clamping bolt pair. A plurality of semi-welded plate pairs at the plate are sealed by the sealing gaskets. Meanwhile, the sealing position of a plate A and a plate B of the semi-welded plate pairs adopts the structure of two-sided laser welding, so as to effectively overcome the deformation of the plate pairs during welding and eliminate the deformation stress during welding. The heat exchanger has the advantages of simple and reasonable structure, convenience in use and good heat exchanging effect.
Description
Technical field
The present invention relates to a kind of heat-exchanger rig, concrete ground a kind of half welded type plate type heat exchanger of saying so with dismoutability.
Background technology
Its version of existing dismountable plate type heat exchanger is right with seal gasket sealing back formation half sheet between plate and the plate; A plurality of half sheets between constitute the plate bundle through seal gasket sealing back again; Because the limitation of itself structure, working pressure is no more than 2.5MPa, and serviceability temperature is no more than 180 ℃; In addition owing to adopt the seal gasket sealing between the plate fully; The consistency problem that also has the fluid sealing relation rubber cushion can not use in the medium that rubber seal is lined with corrosion, makes the scope of application of dismountable plate type heat exchanger be restricted; And there are shortcomings such as low, inconvenient dismounting of heat transfer efficiency and cleaning in the conventional tube shell heat exchanger; Complete its version of weldering plate type heat exchanger is that plate is all welded, so do not have dismoutability, exists the cleannes to working medium to require deficiencies such as very strictness.
Summary of the invention
The objective of the invention is to provide a kind of simple and reasonable; Easy to use; Good effect of heat exchange; Can realize heat exchange to high-temperature high-pressure medium and chemical corrosivity fluid media (medium), can be applicable to fields such as chemical industry, oil, power, metallurgy technical process such as heating, cooling, condensation, evaporation and recuperation of heat partly weld plate type heat exchanger.
The objective of the invention is to realize like this; This heat exchanger comprises fixed clamping plate, movable pressure plate, top guide bar, lower guide rod, pillar, it is secondary to, gasket seal and fishbolt partly to weld plate; Described fixed clamping plate, movable pressure plate, top guide bar, lower guide rod, pillar constitute the framework of heat exchanger; A plurality of plates that partly weld constitute the plate bundle to fitting together through gasket seal, and the plate bundle is arranged between fixed clamping plate and the movable pressure plate, also fixes through fishbolt is secondary; A plurality of on the said plate bundle partly weld plate between sealing adopt the gasket seal sealing; Partly weld simultaneously sealing part between two right plate A of plate and the B and adopt the version of two-sided laser weld; Distortion when effectively having overcome plate to welding, the distortional stress when having eliminated welding.
The degree of depth of hole, angle, the weld pass slubbing seal groove on described every plate A and the B is less than the degree of depth of welded perimeter seal groove.
The degree of depth of two road sealing grooves of the weld pass on described every plate A and the B adopts the version in the gradual transition district that has gradient.
The version of described gasket seal section adopts polygon ridge shape.
Described every plate A and B will adopt polishing before welding.
The present invention has following characteristics:
1, plate is right
The semi-welded plate heat exchanger plate is to adopting optical-fiber laser of new generation welding, and the heat input is merely 25% of common welding, so welding heat affected zone and residual stress are less, and weld seam is superior to common weld seam.Semi-welded plate heat exchanger only carries out laser weld in two directions on plate plane; Like this, when temperature and pressure changed, plate can expand and contact along its length.This flexibility of plate bundle still can be used half weldering plate type heat exchanger when temperature and pressure changes rapidly; And in typical three-dimensional Welding Design, will produce fatigue crack usually.Can raise with temperature when in addition welding and be out of shape.
2, plate location
Semi-welded plate heat exchanger adopts the suspension navigation system of dovetail groove shape.It has five point location functions, makes plate accurate positioning up and down; Place, two plate location contacts and adopts the version of spot welding, can improve the support stiffness at place, plate location, easy disassembly.
3, hole, angle, plate weld pass slubbing seal groove
Because the medium of corrosion pad is walked the runner of welded seal; So place, turnover bicker hole gasket seal is the O type circle of special substance; Its compression ratio and main gasket compression are than different; Therefore weld pass turnover bicker hole slubbing seal groove is compared with the welded perimeter seal groove, and its degree of depth is different, has guaranteed that so promptly the heat transmission equipment bearing capacity has reduced the drag losses at place, hole, angle again.
4, hole, angle, plate weld pass two road sealing grooves
Adopt the version of gradual changes in two road seals at of plate weld pass, guaranteed that so not only plate two road seals at hold rigidity to the support of pad, the while has guaranteed the bearing capacity of pad again.
5, sheet structure form
Head portion is adopted the symmetrical structure form on the plate, makes the supporting that is parallel to each other in mosaic water conservancy diversion district, forms tubular flow, has reduced flow resistance.The herringbone ripple of different angles makes fluid under low flow velocity, form turbulent flow, has increased heat transfer coefficient.
6, laser welding process
Plate is welded to adopting state-of-the-art in the world optical-fiber laser machine; In order to prevent the distortion of welding heat affected zone to the plate welding; On welding procedure, adopt the process of tow sides welding; Plate is out of shape after the welding that residual stress causes when well having eliminated welding, has guaranteed the sealing property of welding bead further.
7, gasket seal version
Pad adopts multiaspect ridge shape, so not only can increase the gasket compression ratio, and increased pad and plate between contact area, thereby improved the bearing capacity of heat transmission equipment.
Advantage of the present invention comprises simultaneously:
(1), can 200 ° of C of anti-maximum temperature, minimum temperature is-38 ° of C, maximum design pressure is 3.0MPa;
(2), frame for movement is firm, laser weld can be handled Korrosionsmedium than rubber seal dependable performance, anti-leakage security is high;
(3), be suitable for rubber seal is lined with the liquid of erosion, dismounting is simple, can the plate of sealing gasket sealing taken apart, clean;
(4), do not need standby redundancy, operating cost is low.Owing to adopt laser weld in process fluid side (like electrolyte, sulfuric acid, alkali etc.), there is not rubber seal, so say in the strictness, necessity of procurement of replacement parts after this side does not just exist.Like this, the operating cost of this equipment is compared with common plate type heat exchanger and is significantly reduced;
(5), modularized design.Whole platen formula heat exchanger is made up of the module of a lot of 2/group, has guaranteed the flexibility of equipment.Promptly can change the heat of this equipment easily through the quantity that increases or reduce module;
(6), high anti-fouling tendency.Generally speaking, the plate of the semi-welded plate heat exchanger of modularized design all adopts polishing during fabrication.This point is for the ease of welding at first, improves welding or power and considers.But also improved the anti-soil dirt property of laser semi-welded plate heat exchanger greatly;
(7), all advantages that possess other common plate type heat exchanger and had.Little like floor space, the coefficient of heat transfer and heat exchange efficiency are high, easy to maintenance and economical operation etc.;
(8), semi-welded plate heat exchanger is a kind of with removable plate type heat exchanger of routine and full weldering plate type heat exchanger advantages novel heat exchange equipment together, this kind heat exchanger is mainly used in high temperature that conventional removable plate type heat exchanger can't use and high pressure or runner has the phase transformation occasion; Be used for processing requirements harsh fluid or gas, for example ammonia, eroding chemical etc. do not allow mutual leaking medium heat exchange to need and a kind of novel heat exchange equipment of exploitation.
Description of drawings
Fig. 1 is a semi-welded plate heat exchanger overall structure sketch map.
Fig. 2 is that the present invention forms the right sheet structure sketch map of plate.
Fig. 3 is that two plate A of the two-sided laser weld of the present invention and plate that B constitutes are to the section structure sketch map.
Fig. 4 is that a plurality of plates of the present invention are to fitting together the plate bundle section structure sketch map of formation through gasket seal.
Fig. 5 is plate two a road sealing groove degree of depth gradual transition plot structure sketch mapes of the present invention.
Fig. 6 is two a road sealing groove degree of depth gradual transition district A-A face rotation profiles among Fig. 5 of the present invention.
Fig. 7 is a gasket seal section structure for amplifying sketch map of the present invention.
The specific embodiment
By accompanying drawing 1,2, shown in 3: this heat exchanger comprise fixed clamping plate 1, movable pressure plate 2, top guide bar 3, lower guide rod 4, pillar 5, partly weld plate to 6, gasket seal 7 and fishbolt secondary 8; Described fixed clamping plate 1, movable pressure plate 2, top guide bar 3, lower guide rod 4, pillar 5 constitute the framework of heat exchangers; A plurality of plates that partly weld fit together formation plate bundle to 6 through gasket seal 7, and the plate bundle is arranged between fixed clamping plate 1 and the movable pressure plate 2, also fixes through fishbolt secondary 8; A plurality of plates that partly weld on the said plate bundle adopt gasket seal 7 sealings to the sealing between 6; Partly weld simultaneously plate and seals at 12 between 6 two plate A and the B is adopted the version of two-sided laser weld; Distortion when effectively having overcome plate to welding, the distortional stress when having eliminated welding.
Shown in accompanying drawing 4: the degree of depth of hole, angle, the weld pass slubbing seal groove 9 on described every plate A and the B is less than the degree of depth of welded perimeter seal groove 10.
By accompanying drawing 5, shown in 6: the degree of depth of two road sealing grooves 11 of the weld pass on described every plate A and the B adopts the version in the gradual transition district 13 that has gradient.
Shown in accompanying drawing 7: the version of described gasket seal 7 sections adopts polygon ridge shape.
Described every plate A and B will adopt polishing before welding.
The present invention replaces gasket seal to form with laser weld two plate A, B seals at partly to weld plate to 6; Laser weld is partly welded plate and in 6, is had no rubber blanket; Originally there was the place of rubber blanket to fetch replacement by Laser Welding; Therefore HTHP or Korrosionsmedium do not contact with any rubber blanket, but safe operation can never produce and leak or interior leakage.And each half-and-half welds plate to adopting traditional gasket seal composing plate bundle between 6.Intrafascicular at plate; Weld pass of being made up of laser weld and gasket seal 7 form that conventional passage is alternate to form; Corrosive medium is walked the runner of welded seal, and no corrosive medium is walked the runner of gasket seal 7 conventional sealings, and each partly welds the seal with O ring of plate to adopting durable artificial rubber or other highly elastic material to make between 6 jiaos of holes; So this heat exchanger promptly possesses the advantage of detachable board-like heat exchanger, also solved the problem that Korrosionsmedium destroys rubber sheet gasket simultaneously.Being mainly used in treatment media has the heat exchange occasion of corrosion to pad, like ammonia as the cold refrigeration industry of cold-producing medium, the heating of solvent or cooling etc.
Claims (5)
1. semi-welded plate heat exchanger, this heat exchanger comprise fixed clamping plate (1), movable pressure plate (2), top guide bar (3), lower guide rod (4), pillar (5), partly weld plate to (6), gasket seal (7) and fishbolt secondary (8); Described fixed clamping plate (1), movable pressure plate (2), top guide bar (3), lower guide rod (4), pillar (5) constitute the framework of heat exchanger; A plurality of plates that partly weld fit together formation plate bundle to (6) through gasket seal (7); The plate bundle is arranged between fixed clamping plate (1) and the movable pressure plate (2); And it is fixing through fishbolt secondary (8); It is characterized in that: a plurality of on the said plate bundle partly weld plates gasket seal (7) sealing are adopted in the sealing between (6), partly weld plate adopts two-sided laser weld to seals at (12) between two plate A of (6) and the B version simultaneously.
2. a kind of semi-welded plate heat exchanger according to claim 1 is characterized in that: the degree of depth of hole, angle, the weld pass slubbing seal groove (9) on described every plate A and the B is less than the degree of depth of welded perimeter seal groove (10).
3. a kind of semi-welded plate heat exchanger according to claim 1 is characterized in that: the degree of depth of two road sealing grooves (11) of the weld pass on described every plate A and the B adopts the version in the gradual transition district (13) that has gradient.
4. a kind of semi-welded plate heat exchanger according to claim 1 is characterized in that: the version of described gasket seal (7) section adopts polygon ridge shape.
5. a kind of semi-welded plate heat exchanger according to claim 1 is characterized in that: described every plate A and B will adopt polishing before welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011101350668A CN102798305A (en) | 2011-05-24 | 2011-05-24 | Semi-welded plate heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101350668A CN102798305A (en) | 2011-05-24 | 2011-05-24 | Semi-welded plate heat exchanger |
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| CN102798305A true CN102798305A (en) | 2012-11-28 |
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| CN2011101350668A Pending CN102798305A (en) | 2011-05-24 | 2011-05-24 | Semi-welded plate heat exchanger |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748591A (en) * | 2015-04-10 | 2015-07-01 | 甘肃蓝科石化高新装备股份有限公司 | Welded plate frame type heat exchanger |
| CN104776737A (en) * | 2015-04-22 | 2015-07-15 | 济南秦泰热工技术有限公司 | High-pressure plate type heat exchanger |
| CN104972234A (en) * | 2015-07-17 | 2015-10-14 | 上海科凌能源科技有限公司 | Tool for laser welding of printed circuit heat exchanger |
| CN110068230A (en) * | 2018-11-14 | 2019-07-30 | 四平市巨元瀚洋板式换热器有限公司 | A kind of half weldering formula plate-type condenser |
| CN111609739A (en) * | 2020-06-29 | 2020-09-01 | 山东北辰机电设备股份有限公司 | Large-scale plate heat exchanger with large temperature difference and small end difference |
| CN112088285A (en) * | 2018-04-27 | 2020-12-15 | 林德有限责任公司 | Plate heat exchanger, process engineering system and method |
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| CN1087713A (en) * | 1993-12-02 | 1994-06-08 | 缪志先 | Have outer tunnel and welded plate type heat exchanger |
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| CN201413058Y (en) * | 2009-06-09 | 2010-02-24 | 南京高捷轻工设备有限公司 | Plate-type evaporator |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748591A (en) * | 2015-04-10 | 2015-07-01 | 甘肃蓝科石化高新装备股份有限公司 | Welded plate frame type heat exchanger |
| CN104776737A (en) * | 2015-04-22 | 2015-07-15 | 济南秦泰热工技术有限公司 | High-pressure plate type heat exchanger |
| CN104972234A (en) * | 2015-07-17 | 2015-10-14 | 上海科凌能源科技有限公司 | Tool for laser welding of printed circuit heat exchanger |
| CN112088285A (en) * | 2018-04-27 | 2020-12-15 | 林德有限责任公司 | Plate heat exchanger, process engineering system and method |
| CN110068230A (en) * | 2018-11-14 | 2019-07-30 | 四平市巨元瀚洋板式换热器有限公司 | A kind of half weldering formula plate-type condenser |
| CN111609739A (en) * | 2020-06-29 | 2020-09-01 | 山东北辰机电设备股份有限公司 | Large-scale plate heat exchanger with large temperature difference and small end difference |
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Application publication date: 20121128 |