The B-grade condensation heat exchanger
Technical field
The utility model relates to a kind of B-grade condensation heat exchanger, and it is applicable to burnt gas wall hanging furnace.
Background technology
B-grade condensation heat exchanger in the existing wall-hung boiler is finned as main take copper, but finned heat exchanger add man-hour needs first a plurality of fins are put neat after and ellipse assemble, assembly after assembling is again put into the expand tube anchor clamps and is carried out expand tube, then be pressed on together with straight tube, then whole workpiece is carried out degreasing, the manual brazing flux that soaks, carry out at last a plurality of operations such as drying, soldering, have the problems such as complex structure, manufacturing process is various, production efficiency is low.For overcoming these defectives, the B-grade condensation heat exchanger is developed.
Summary of the invention
Technical problem to be solved in the utility model is that a kind of B-grade condensation heat exchanger will be provided, and is simple in structure, can simplify manufacturing process, enhances productivity.
The technical scheme that its technical problem that solves the utility model adopts is: comprise housing, the heat exchanger main body, the smoke evacuation cover plate, gas approach, the housing seal bar, the smoke evacuation cover plate is provided with exhanst gas outlet, housing comprises inlet opening and apopore, described heat exchanger main body comprises inlet water divider, the water outlet water collector, set of heat exchange tubes, the water inlet pipe of inlet water divider is by the inlet opening of housing and outside pipeline connection, the outlet pipe of water outlet water collector is by the apopore of housing and outside pipeline connection, set of heat exchange tubes one end is communicated with inlet water divider, and the other end is communicated with the water outlet water collector.
Described set of heat exchange tubes is comprised of the continuous U corrugated stainless steel tubing more than two, and one-body molded and adjacent two bellowss of each bellows are Heterogeneous Permutation side by side.
Described inlet water divider, water outlet water collector are the cuboids of cavity for the centre, and the outside is provided with the water pipe that is communicated with cavity, and the inboard is provided with the through hole corresponding with set of heat exchange tubes.
Described set of heat exchange tubes is welded on the through hole of inlet water divider, water outlet water collector.
It also comprises smoke deflector, and smoke deflector is installed in the housing middle part and is positioned at the smoke air inlet place.
Described smoke deflector is provided with the tongue corresponding with set of heat exchange tubes.
The periphery of described housing, housing seal bar, smoke evacuation cover plate is respectively equipped with corresponding screwed hole.
Described inlet water divider, water outlet water collector are the Stainless Steel Shell of nickel postwelding, and the housing seal bar is made by silicon rubber or acrylonitrile-butadiene rubber.
Described smoke deflector is made by stainless steel or high-temperature resistance plastice.
The utility model is compared the beneficial effect that produces with background technology:
Because the utility model adopts the heat exchanger main body to comprise inlet water divider, the water outlet water collector, set of heat exchange tubes, the water inlet pipe of inlet water divider is by the inlet opening of housing and outside pipeline connection, the outlet pipe of water outlet water collector is by the apopore of housing and outside pipeline connection, set of heat exchange tubes one end is communicated with inlet water divider, the scheme that the other end is communicated with the water outlet water collector, only need during assembling set of heat exchange tubes and inlet water divider and water outlet water collector are welded together, then be set to the integral installation of namely finishing heat exchanger in the housing, simple in structure, can simplify manufacturing process, enhance productivity.
Description of drawings
Fig. 1 is explosive view of the present utility model.
Fig. 2 is the structural representation after Fig. 1 assembles.
Fig. 3 is vertical side view of heat exchanger main body among Fig. 1.
Fig. 4 is the transverse side view of heat exchanger main body among Fig. 1.
Fig. 5 is the water (flow) direction schematic diagram of heat exchanger body interior among Fig. 3.
Fig. 6 is the stereo amplification figure of heat exchanger main body among Fig. 1.
Fig. 7 is the side view of smoke deflector 7 horizontal positioned among Fig. 1.
Fig. 8 is the side view that smoke deflector 7 is vertically placed among Fig. 1.
The specific embodiment
Referring to accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, accompanying drawing 5, accompanying drawing 6, accompanying drawing 7, shown in the accompanying drawing 8, present embodiment comprises housing 6, the heat exchanger main body, smoke evacuation cover plate 4, gas approach 8, housing seal bar 9, smoke evacuation cover plate 4 is provided with exhanst gas outlet 5, housing 6 comprises inlet opening and apopore, the heat exchanger main body comprises inlet water divider 1, water outlet water collector 2, set of heat exchange tubes 3, inlet water divider 1, the centre that water outlet water collector 2 is made for the stainless steel material of nickel postwelding is the cuboid of cavity, the outside is provided with the water pipe that is communicated with cavity, the inboard is provided with the through hole corresponding with set of heat exchange tubes 3, the water inlet pipe of inlet water divider 1 is by the inlet opening of housing 6 and outside pipeline connection, the outlet pipe of water outlet water collector 2 is by the apopore of housing 6 and outside pipeline connection, set of heat exchange tubes 3 is comprised of the continuous U corrugated stainless steel tubing more than two, one-body molded and adjacent two bellowss of each bellows are Heterogeneous Permutation side by side, one end of every corrugated stainless steel tubing is welded on the through hole of inlet water divider 1, and the other end is welded on the through hole of water outlet water collector 2.The periphery of housing 6, housing seal bar 9, smoke evacuation cover plate 4 is respectively equipped with corresponding screwed hole, smoke evacuation cover plate 4 is placed in the top of housing 6, the centre installs the housing seal bar 9 that a silicon rubber or acrylonitrile-butadiene rubber are made additional, then with screw three's locking is located, good sealing effect guarantees that flue gas is outside through whole discharge machines behind the heat exchanger.
The heat exchanger main body is simple with respect to fin type heat exchanger structure, can simplify manufacturing process, enhances productivity.In addition, because Copper Product in China is rare, original copper finned heat exchanger cost is higher, corrosion-resistant, and set of heat exchange tubes 3 of the present utility model adopts stainless steel material, can effectively reduce material cost, improves the corrosion resistance of heat exchanger.The continuous U corrugated stainless steel tubing group of Heterogeneous Permutation can effectively increase heat exchange area, improve heat exchange efficiency side by side, and compact conformation, space availability ratio are high.
Further, present embodiment also comprises the smoke deflector 7 that stainless steel or high-temperature resistance plastice (such as anti-combustion PC, PPC) are made, smoke deflector 7 is installed in housing 6 middle parts and is positioned at the smoke air inlet place, because set of heat exchange tubes 3 Heterogeneous Permutations, therefore smoke deflector 7 is provided with the tongue corresponding with set of heat exchange tubes 3, U-shaped bending degree according to set of heat exchange tubes 3, tongue can also can be semicircle for square, if set of heat exchange tubes 3 dislocation are fewer and feweri, also can make water wave type or even straight plate, present embodiment is square tongue.Can exchange heat pipe heat plays certain fixation to smoke deflector 7 on the one hand, on the other hand, can allow flue gas discharge behind a circle along heat exchanger again, and the fume side resistance is little, flue-gas temperature can be reduced to condensation point, takes full advantage of the heat of high-temperature flue gas.
During work, the heating backwater that water pump provides enters the cavity of inlet water divider 1 by the water inlet pipe of inlet water divider 1, then parallel connection enters in the corrugated stainless steel tubing of set of heat exchange tubes 3, blower fan makes the high-temperature flue gas in the combustion chamber enter housing 6 by gas approach 8 simultaneously, smoke deflector 7 makes flue gas center on heat exchanger around being discharged by the exhanst gas outlet 5 on the smoke evacuation cover plate 4 behind the circle, thereby the heating backwater of exchange in the heat pipe heat 3 carries out abundant heat exchange, compiles heating water after the preheating through water outlet water collector 2 and flows out from the outlet pipe in the outside of water outlet water collector 2 and supply with main heat exchanger and carry out main heat exchange.