A kind of superposing type heat exchanger
The utility model belongs to boiler technology field, particularly a kind of superposing type heat exchanger.
Heat exchanger is the equipment partial heat of hot fluid being passed to cold fluid, also known as heat exchanger.Current heat exchanger various informative, but its heat transfer effect differs greatly, the main difference be still embodied in material of these heat exchanger heat transfer effect quality.The heat exchanger structure of current market is single, and heat transfer effect is undesirable, and heat fully can not be converted use, makes a large amount of thermal waste.
In water channel simultaneously in heat exchanger, circulation has water, and current flow through water channel and realize heat exchange, if hot water flowing is too fast, then heat can be caused to transmit insufficient, hot water utilization rate is low, causes thermal loss; If hot water flows over slowly, then inefficiency can be caused.
Summary of the invention
The purpose of this utility model is the problems referred to above existed for existing heat exchanger structure, provides a kind of heat exchange effect better heat exchanger.
The purpose of this utility model realizes by following technical proposal: a kind of superposing type heat exchanger, comprise water inlet pipe, outlet pipe and some heat exchanger plates stacked gradually, each heat exchanger plates is equipped with water stream channel, water inlet pipe is communicated with the water inlet of above-mentioned each water stream channel, outlet pipe is communicated with the delivery port of each water stream channel, heating chamber is formed between adjacent two heat exchanger plates, the inwall of heating chamber is provided with fin, flue is formed between the fin of both sides, it is characterized in that, described heat exchanger plates comprises drive end bearing bracket and rear end cap, drive end bearing bracket and rear end side is in opposite directions equipped with cavity, above-mentioned water stream channel is formed in inside after drive end bearing bracket and rear end cap fasten, some flow-disturbing blocks are provided with in water stream channel.
The water inlet of described water stream channel and delivery port are distributed in two diagonal angle places of heat exchanger plates.
The both sides of described heat exchanger plates are provided with fin, form flue between the fin of adjacent heat exchanger plates.
Described flow-disturbing block uniform intervals respectively.
Described flow-disturbing block is flat-shaped in side, and surrounding has arc fillet.
One end of described heating chamber is combustion chamber, and the width of both sides, combustion chamber fin stretches out and narrows gradually.
Described heat exchanger plates is divided into and comprises front end heat exchanger plates, some stage casings heat exchanger plates and rear end heat exchanger plates, be held in after the stack of heat exchanger plates of some stage casings between front end heat exchanger plates and rear end heat exchanger plates, described front end heat exchanger plates and rear end heat exchanger plates are only provided with fin in inner side.
During heating, flame enters from wide arc gap flue one end, than etc. the flue of the interstitial structure distance that can heat larger.The area of section of water stream channel increases, and water turbulence effect is not enough, increases flow-disturbing block to increase heat transfer effect, when fluid flows through in flow-disturbing block, flow separation occurs, thus produces backflow, whirlpool and whirlpool speed, and the disturbance in lift-off district is conducive to enhanced heat exchange effect.
Accompanying drawing explanation
Fig. 1 is heat exchanger plates cell schematics.
Fig. 2 is rear end cap schematic diagram.
Fig. 3 is structural representation of the present utility model.
In figure, 1, rear end cap; 2, water inlet; 3, drive end bearing bracket; 4, flow-disturbing block; 5, water stream channel; 6, combustion chamber; 7, fin; 8, flue; 9, delivery port; 10, heat exchanger plates; 11, front end heat exchanger plates; 12, stage casing heat exchanger plates; 13, rear end heat exchanger plates.
Detailed description of the invention
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in FIG. 1 to 3, the utility model is formed by stacking by several heat exchanger plates 10 unit, after each heat exchanger plates 10 superposes, its water inlet 2 and delivery port 9 are connected respectively, then access a water inlet pipe and an outlet pipe, the current passed into all circulate one time by water inlet pipe and outlet pipe on each heat exchanger plates 10.Heat exchanger plates 10 comprises drive end bearing bracket 3 and rear end cap 1, drive end bearing bracket 3 and rear end side is in opposite directions equipped with cavity, water stream channel 5 is formed in inside after drive end bearing bracket 3 and rear end cap 1 fasten, water inlet 2 and delivery port 9 are separately positioned on the diagonal of water stream channel 5 two ends, are provided with some flow-disturbing blocks 4 in the water stream channel 5 of heat exchanger plates 10.Flow-disturbing block 4 uniform intervals sets up separately, and flow-disturbing block 4 is flat-shaped in side, and surrounding has arc fillet.
Heating chamber is formed between two adjacent heat exchanger plates 10, the inwall of heating chamber is provided with the fin 7 of grid fence structure, form flue 8 between relative both sides fin 7, not etc., its flue 8 not to be expanded to the other end by wherein one end and forms combustion chamber 6 described fin about 7 width gradually.Flame acts directly in combustion chamber 6, temperature is passed to the fluid in water stream channel 5 by fin 7, the area of section of water stream channel 5 increases, water turbulence effect is not enough, increase flow-disturbing block 4 to increase heat transfer effect, when fluid flows through in flow-disturbing block 4, flow separation occurs, thus producing backflow, whirlpool and whirlpool speed, the disturbance in lift-off district is conducive to enhanced heat exchange effect.
Heat exchanger plates 10 comprises front end heat exchanger plates 11, some stage casings heat exchanger plates 12 and rear end heat exchanger plates 13, some stage casings heat exchanger plates 12 heap poststack is held between front end heat exchanger plates 11 and rear end heat exchanger plates 13, and described front end heat exchanger plates 11 and rear end heat exchanger plates 13 are only provided with fin 7 in inner side.
Should be appreciated that, in claims of the present utility model, description, all " comprising ... " is all interpreted as open implication, and namely its implication is equal to " at least containing ... ", and should not be construed as enclosed implication, namely its implication should not be construed " only comprising ... ".
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.