CN204830489U - Vortex device, tobacco pipe and gas heater - Google Patents

Abstract

The application discloses a vortex device, tobacco pipe and gas heater, wherein, the vortex device can set up in the tobacco pipe that is used for the heat transfer, and this vortex device includes: a plurality of first vortex fins, at least two first vortex fin is in projection on the cross section place plane of tobacco pipe is staggered and the part overlapping each other, the position that the cross section was got is close to at least two in the first vortex fin one. Still include: can with the support piece that the tobacco pipe syntropy is extended, first vortex fin is located support piece is last. At least two first vortex fin is in staggered area projected of each other on the cross section place plane of tobacco pipe is not more than the area of its overlapping. The utility model provides vortex device, tobacco pipe and gas heater can improve the efficiency of heat transfer of flue gas in the tobacco pipe.

Description

Disturbing flow device, smoke pipe and gas heater

Technical field

The application relates to technical field of water heaters, particularly a kind of disturbing flow device, smoke pipe and gas heater.

Background technology

As everyone knows, existing gas displacement type water heater places a burner bottom a metal drum, the bucket heart has a smoke pipe, the flue gas produced when this smoke pipe is for discharging burning, bucket surrounding insulation material is incubated, and burner combustion forms the flue gas of high temperature, and inner bucket water heats by utilizing the heat transfer effect of smoke pipe during smoke pipe by flue gas, when water is heated to design temperature, temperature controller control combustion device stops burning.

For preventing flue gas too fast loss and cause that the heat in flue gas is inabundant to be passed by pipeline in smoke pipe, all a disturbing flow device can be placed in smoke pipe at present.As shown in Figure 1, existing disturbing flow device generally comprises gripper shoe 201 and is installed on the flow-disturbing fin of gripper shoe 201 both sides, the flow-disturbing fin 202 in (during with scope of readers to Fig. 1) left side and the outward flange of the flow-disturbing fin 203 on right side are all near smoke pipe 200 inwall, and leave certain gap with smoke pipe 200 inwall, flue gas by during this gap and smoke pipe 200 carry out heat trnasfer, simultaneously, under the effect of flow-disturbing fin, flue gas is subject to the obstruction of flow-disturbing fin and slows down, velocity of flue gas makes flue gas through the time lengthening of smoke pipe 200 after declining, and then add the time that flue gas and smoke pipe 200 carry out heat trnasfer, the heat of flue gas can be fully utilized.

Although, flue gas obtains certain decline through adopting the smoke pipe flowing velocity of above-mentioned disturbing flow device, heat transference efficiency tool has a certain upgrade, but, temperature through the flue gas of smoke pipe discharge is still higher, this shows, still has the heat that can be utilized in flue gas, and the heat transference efficiency of flue gas in smoke pipe can further improve.

Utility model content

The test that inventor through for a long time, repeatedly counts also carries out simulation analysis discovery, existing turbulence structure is roughly symmetrical structure, on the left of it flow-disturbing fin 202 smoke pipe a cross section projection in the plane all overlap, right side flow-disturbing fin 203 equally a cross section of smoke pipe projection in the plane all overlap, flow-disturbing fin easily forms the blind area of unconfined flow with the sequence of this kind of rule, and (during with scope of readers to Fig. 1) flue gas can be shifted onto the left and right sides by flow-disturbing fin.Refer to Fig. 2, for left side flow-disturbing fin 202, its neighbouring two panels flow-disturbing fin and the gap that smoke pipe inwall is formed not only up/down perforation but also identical, flue gas is when below flow-disturbing fin 2021 and the gap 2023 of smoke pipe inwall go upward to top flow-disturbing fin 2022, because top flow-disturbing fin 2022 is identical with the gap 2023 of smoke pipe inwall with below flow-disturbing fin 2021 with the gap 2024 of smoke pipe inwall, flue gas can directly not blocked by top flow-disturbing fin 2022 and the gap 2024 of smoke pipe inwall, and then top flow-disturbing fin 2022 is faint for the flow-disturbing effectiveness comparison of flue gas, make the speed uplink of flue gas in smoke pipe can be still higher, and then cause the heat transference efficiency of flue gas in smoke pipe still not high.

In view of above-mentioned technical problem, the application is necessary to provide a kind of disturbing flow device, smoke pipe and gas heater, to improve the heat transference efficiency of flue gas in smoke pipe.

For achieving the above object, the application provides a kind of disturbing flow device, and it can be arranged in the smoke pipe for heat exchange, and this disturbing flow device comprises:

Multiple first flow-disturbing fin, at least two described first flow-disturbing fins described smoke pipe cross section projection in the plane mutually stagger and partly overlap; One in close at least two the described first flow-disturbing fins in position that described cross section is got.

Preferably, also comprise: the support member that can extend in the same way with described smoke pipe; Described first flow-disturbing fin is located on described support member.

Preferably, at least two described first flow-disturbing fins described smoke pipe cross section the area staggered mutually of projection be in the plane not more than the area of its overlap.

Preferably, the first flow-disturbing fin described at least one with the end of the underlapped part of the described projection of the first flow-disturbing fin described in other on be provided with the second flow-disturbing fin.

Preferably, at least two described first flow-disturbing fins are located in the plane at same cross section place of described smoke pipe.

Preferably, described support member is flat structure, it comprise two mutually back to described side surface; Two described side surfaces are provided with at least two cross sections at described smoke pipe projection in the plane mutually stagger and partly overlapping described first flow-disturbing fin.

Preferably, the prism structure of described support member to be cross section be regular polygon, each side surface is provided with at least two cross sections at described smoke pipe projection in the plane mutually stagger and partly overlapping described first flow-disturbing fin.

Preferably, the described first flow-disturbing fin on each described side surface is arranged into row.

Preferably, on each described side surface, the described first flow-disturbing fin of partial amt described smoke pipe cross section projection in the plane overlap; The described first flow-disturbing fin of another part quantity described smoke pipe cross section projection in the plane overlap; The described first flow-disturbing fin of partial amt and the described first flow-disturbing fin of another part quantity described smoke pipe cross section projection in the plane mutually stagger and partly overlap.

Preferably, the described first flow-disturbing fin in described partial amt and the described first flow-disturbing fin in described another part quantity distribute alternately.

Preferably, on each described side surface, the spacing distance often between adjacent two described first flow-disturbing fins is arranged according to preset rules.

Preferably, described first flow-disturbing fin is positioned on the different rib of the single side surface of described support member from two end points of the connecting line of described support member.

Preferably, the described first flow-disturbing fin at least one end points of the connecting line of the first flow-disturbing fin and described support member described at least one and adjacent side shares.

For achieving the above object, the application also provides a kind of smoke pipe of gas heater, comprising:

Outer tube;

Be arranged at the multiple first flow-disturbing fins in described outer tube, at least two described first flow-disturbing fins described outer tube cross section projection in the plane mutually stagger and partly overlap; One in close at least two the described first flow-disturbing fins of described cross section.

Preferably, described first flow-disturbing fin is connected on the inwall of described outer tube.

Preferably, described at least one, the angle of the connecting line of the tube wall of the first flow-disturbing fin and described outer tube and the cross section of described outer tube is acute angle.

Preferably, also comprise: be located at the support member in described outer tube, described support member and described outer tube extend in the same way; Described first flow-disturbing fin is located on described support member.

Preferably, described at least one, the angle of the connecting line of the sidewall of the first flow-disturbing fin and described support member and the cross section of described outer tube is acute angle.

Preferably, each described first flow-disturbing fin is equal with the angle of the cross section of described outer tube with the connecting line of the sidewall of described support member.

Preferably, the inwall of described outer tube is also provided with the heat-conducting plate extended in the same way with described outer tube.

Preferably, the inwall of described outer tube is provided with the first projection outstanding in pipe, and the outer wall of described outer tube is provided with corresponding first groove protruding with described first; And/or the outer wall of described outer tube is provided with towards outer the second outstanding projection of pipe, and the inwall of described outer tube is provided with corresponding second groove protruding with described second.

For achieving the above object, the application is a kind of gas heater also, comprising: as above arbitrary described smoke pipe.

By describing above and can finding out, the disturbing flow device that the application provides by be provided with at least two described first flow-disturbing fins described smoke pipe cross section projection in the plane mutually stagger and partly overlap, the underlapped part of projection of the first flow-disturbing fin being positioned at top is formed up flue gas stop, not only reduce the speed of flue gas, and extend the distance of flue gas at cigarette walking in pipe further, the time making flue gas carry out heat trnasfer with smoke pipe in smoke pipe is effectively extended, so, the disturbing flow device that the application provides can improve the heat transference efficiency of flue gas in smoke pipe.

With reference to explanation hereinafter and accompanying drawing, disclose in detail particular implementation of the present utility model, specifying principle of the present utility model can adopted mode.Should be appreciated that, thus embodiment of the present utility model is not restricted in scope.In the spirit of claims and the scope of clause, embodiment of the present utility model comprises many changes, amendment and is equal to.

The feature described for a kind of embodiment and/or illustrate can use in one or more other embodiment in same or similar mode, combined with the feature in other embodiment, or substitutes the feature in other embodiment.

Should emphasize, term " comprises/comprises " existence referring to feature, one integral piece, step or assembly when using herein, but does not get rid of the existence or additional of one or more further feature, one integral piece, step or assembly.

Accompanying drawing explanation

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those skilled in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the disturbing flow device front view of prior art;

Fig. 2 is two flow-disturbing fin schematic diagrames in the left view of disturbing flow device shown in Fig. 1;

Fig. 3 is two the first flow-disturbing fin schematic diagrames in the disturbing flow device that provides of the application's embodiment;

Fig. 4 is the disturbing flow device schematic diagram that the application's embodiment provides;

Fig. 5 is the top view of disturbing flow device shown in Fig. 4;

Fig. 6 is that the application's embodiment provides disturbing flow device schematic diagram;

Fig. 7 is the top view of disturbing flow device shown in Fig. 6;

Fig. 8 is the disturbing flow device schematic diagram that the application's embodiment provides.

Detailed description of the invention

Technical scheme in the application is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all should belong to the scope of the utility model protection.

It should be noted that, when element is called as " being arranged at " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement just for illustrative purposes, do not represent it is unique embodiment.

Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in description of the present utility model herein just in order to describe concrete embodiment, is not intended to be restriction the utility model.Term as used herein "and/or" comprises arbitrary and all combinations of one or more relevant Listed Items.

Refer to Fig. 3, Fig. 4 and Fig. 5, for a kind of disturbing flow device that the application's embodiment provides, it can be arranged in the smoke pipe 10 for heat exchange, this disturbing flow device comprises: multiple first flow-disturbing fin 100, at least two described first flow-disturbing fins 100 described smoke pipe 10 cross section projection in the plane mutually stagger and partly overlap; One in close at least two the described first flow-disturbing fins 100 in position that described cross section is got.

During use, can be installed on the inwall of smoke pipe 10 by the first flow-disturbing fin 100 of the disturbing flow device of present embodiment, also the first flow-disturbing fin 100 can be installed on the support member 20 in smoke pipe 10, the application does not impose any restrictions.

Refer to Fig. 3, for upper and lower two projections are staggered and partly overlapping first flow-disturbing fin 100 mutually: the first flow-disturbing fin 101 of top and the first flow-disturbing fin 102 of below.In two the first flow-disturbing fins 100, each first flow-disturbing fin 100 includes projection lap 103 and the underlapped part 104 (stagger mutually part 104) that projects, can find out, the left side of the first flow-disturbing fin 101 of (during with scope of readers to Fig. 3) top relative to the left side of the first flow-disturbing fin 102 of below closer to smoke pipe 10 inwall, accordingly, the right side of the first flow-disturbing fin 101 of top relative to the right side of the first flow-disturbing fin 102 of below further from smoke pipe 10 inwall.Being the first clearance portion 1022 between the left side of the first flow-disturbing fin 102 of below and smoke pipe 10 inwall, be the second clearance portion 1021 between the right side of the first flow-disturbing fin 102 of below and smoke pipe 10 inwall, being third space portion 1012 between the left side of the first flow-disturbing fin 101 of top and smoke pipe 10 inwall, is the 4th clearance portion 1011 between the right side of the first flow-disturbing fin 101 of top and smoke pipe 10 inwall.Wherein, third space portion 1012 is positioned at above the first clearance portion 1022, 4th clearance portion 1011 is positioned at above the second clearance portion 1021, and, the width in the horizontal direction in third space portion 1012 is less than the width in the horizontal direction of the first clearance portion 1022, this just makes the flue gas through the first clearance portion 1022 is up continue up, partial fume can clash into the underlapped part to top first flow-disturbing fin 101, and then the up of this partial fume is hindered, not only reduce the speed of this partial fume, and impel the searching of this partial fume can continue the up gap passed for it, this just extends the distance that this partial fume is walked in smoke pipe 10 further.

By describing above and can finding out, the disturbing flow device that present embodiment provides by be provided with at least two described first flow-disturbing fins 100 described smoke pipe 10 cross section projection in the plane mutually stagger and partly overlap, make the underlapped part of projection 104 of the first flow-disturbing fin 101 being positioned at top can form stop to up flue gas.This not only lowers the speed of flue gas, and extend the distance that flue gas walks in smoke pipe 10 further, the time making flue gas carry out heat trnasfer with smoke pipe 10 in smoke pipe 10 is effectively extended.So the disturbing flow device that the application provides can improve the heat transference efficiency of flue gas in smoke pipe 10 further.

First flow-disturbing fin 100 is positioned at smoke pipe 10, it can be formed up flue gas and stop, reduces the speed uplink of flue gas in smoke pipe 10, simultaneously, first flow-disturbing fin 100 can also impel flue gas and smoke pipe 10 contact internal walls, is positioned at the guiding that the flue gas below it flows towards smoke pipe 10 inwall.For ensureing the heat transfer effect of flue gas and smoke pipe 10, can arrange between the first flow-disturbing fin 100 outward flange and smoke pipe 10 and there is less spacing distance.Consult Fig. 5 and top view illustrated in fig. 7 can be found out, the outline of the projection of whole disturbing flow device and the profile of smoke pipe 10 inwall adapt, such as, smoke pipe 10 is pipe, its inwall be projected as circle, accordingly, the outline of the projection of whole disturbing flow device can be roughly circle equally, and this circle is positioned at circle that smoke pipe 10 inwall formed and forms an annular gap of conducting heat for flue gas and smoke pipe 10.

It is inner that first flow-disturbing fin 100 is installed on smoke pipe 10, its arrangement mode can be formulated flexibly according to the bearing of trend of smoke pipe 10, only need to ensure at least two described first flow-disturbing fins 100 described smoke pipe 10 cross section projection in the plane mutually stagger and partly overlap, wherein, the described cross section position of getting can at least two described first flow-disturbing fins 100 one.Described cross section is the cross section perpendicular to smoke pipe 10 bearing of trend, take smoke pipe 10 as the straight tube vertically placed, described cross section be horizontal plane smoke pipe 10 is cut after cross section, meanwhile, the plane of projection is above-mentioned horizontal plane.Certainly, smoke pipe 10 can be that swan-neck also can non-vertical be placed, and the application is not as limit, and certainly, present embodiment is the straight tube vertically placed with described smoke pipe 10 is preferred technical scheme.

Simultaneously, in at least two described first flow-disturbing fins 100, the generation type of the part that staggers mutually 104 (project underlapped part 104) and projection lap 103 is not limited to the first flow-disturbing fin 102 of below shown in Fig. 3 and moves towards right avertence, top the first flow-disturbing fin 100 moves towards left avertence, and then forms the mode of stagger mutually part 104 and projection lap 103.Upper and lower two the first flow-disturbing fins 100 also can form stagger mutually part 104 and projection lap 103 by having different shapes.Can find out, the part that staggers mutually 104 is relevant with the relative position relation of upper and lower two the first flow-disturbing fins 100, all there is different forms in its concrete shape, area, size, so, for stagger mutually part 104 and projection arranging of lap 103 can formulate flexibly according to practical matter, preferably, stagger with left and right as shown in Figure 3 and upper and lower two the first flow-disturbing fins 100 are formed as staggering mutually and partly overlapping state is preferred scheme.

Consider that the shape of the first flow-disturbing fin 100 has multiple, such as half-oval shaped, semi-circular shape, square or irregularly shaped, as long as make the profile of the outline of the projection of whole disturbing flow device and smoke pipe 10 inwall adapt, simultaneously, consider that the shape of smoke pipe 10 is not also fixed, so the application is not restricted for the shape of the first flow-disturbing fin 100.

For ensureing that the obstruction for up flue gas is unlikely to excessive, prevent flue gas flowing through in smoke pipe 10 slow, at least two described first flow-disturbing fins 100 described smoke pipe 10 cross section the area staggered mutually of projection in the plane can be not more than the area of its overlap.

Refer to Fig. 4 and Fig. 5, the first flow-disturbing fin 100 described at least one can be provided with the second flow-disturbing fin 30 with the end of the underlapped part 104 of the described projection of the first flow-disturbing fin 100 described in other.The shape size of the second flow-disturbing fin 30 can be less than the shape size of the first flow-disturbing fin 100.Second flow-disturbing fin 30 is installed on the sidewall of the underlapped part 104 of projection of the first flow-disturbing fin 100, its mounting means has multiple, such as weld, be spirally connected, the mode such as grafting, only need ensure that the second flow-disturbing fin 30 is fixedly installed on the first flow-disturbing fin 100.Meanwhile, the installation site of the second flow-disturbing fin 30 can for being the end position of underlapped part 104 near smoke pipe 10 inwall that project.As shown in Figure 4, the installation site of the second flow-disturbing fin 30 can also near the end position of the first flow-disturbing fin 100 with the connecting line of support member 20.Second flow-disturbing fin 30 can produce flow-disturbing effect to flue gas further, improves the degree of the heat trnasfer of flue gas and smoke pipe 10 further.

The arrangement mode of the first flow-disturbing fin 100 in smoke pipe 10 has multiple, and its arragement direction is overall to be extended in the same way with smoke pipe 10, and then in flow process, forms flow-disturbing to flue gas, destroys the direct of travel of flue gas.At least two described first flow-disturbing fins 100 are located in the plane at same cross section place of described smoke pipe 10, namely, multiple first flow-disturbing fin 100 also can be arranged along the circumference of smoke pipe 10, and then the projection of the projection of whole disturbing flow device and smoke pipe 10 inwall is matched.For vertical smoke pipe 10, at least two described first flow-disturbing fins 100 can be positioned at sustained height position.Arranged by this kind, the first flow-disturbing fin 100 density in smoke pipe 10 can be promoted, thus effectively promote the heat transference efficiency of flue gas and smoke pipe 10 inwall.

First flow-disturbing fin 100 can be installed on the inwall of smoke pipe 10, also the first flow-disturbing fin 100 can be installed on the support member 20 in smoke pipe 10, preferably, present embodiment can be installed on the first flow-disturbing fin 100 on the support member 20 in smoke pipe 10 as preferred technical scheme.Support member 20 can extend in the same way with smoke pipe 10, and such as, the pipe (straight tube) that described smoke pipe 10 extends for lengthwise, support member 20 is too for lengthwise extends.Can find out, smoke pipe 10 is sheathed on outside support member 20, and the first flow-disturbing fin 100 is arranged in the annular space between smoke pipe 10 and support member 20.The upper mode that first flow-disturbing fin 100 is installed on support member 20 has multiple, can for removably connecting, such as be spirally connected, grafting, also can be non-dismountable connection, such as weld, rivet, so present embodiment is to the mounting means of the first flow-disturbing fin 100 and be not construed as limiting, only need a first flow-disturbing fin 100 can be fixed on support member 20.

The shape of described support member 20 has multiple, and it can be cylindric, tabular, prism-shaped or irregularly shaped, and present embodiment is not restricted.Support member 20 can extend in the same way with smoke pipe 10, and preferably, smoke pipe 10 is straight tube, and support member 20 is for linearly to extend, and smoke pipe 10 is sheathed on outside support member 20.

With Fig. 4 and Figure 5 shows that example, described support member 20 can be flat structure, it comprise two mutually back to described side surface.Two described side surfaces all can be provided with at least two cross sections at described smoke pipe 10 projection in the plane mutually stagger and partly overlapping described first flow-disturbing fin 100.

In addition, described support member 20 can be also the prism structure of regular polygon for cross section, and the side surface shape of this support member 20 is identical, so can effectively ensure flue gas and each side surface faced by smoke pipe 10 inwall conduct heat evenly.Each side surface is provided with at least two cross sections at described smoke pipe 10 projection in the plane mutually stagger and partly overlapping described first flow-disturbing fin 100.Preferably, for ensureing that whole smoke pipe 10 conducts heat evenly further, the set-up mode of the first flow-disturbing fin 100 on each side surface can be identical.

With Fig. 6 and Figure 7 shows that example, support member 20 for cross section be the quadrangular structure of square, it has four identical side surfaces.Described first flow-disturbing fin 100 on each described side surface is arranged into row.In the first flow-disturbing fin 100 formed a line, it is just right not to be strict with neighbouring two the first flow-disturbing fins 100, that is, adjacent up and down two can stagger mutually and partly overlap, adjacent up and down two also can be completely overlapping.

Further, on each described side surface, the described first flow-disturbing fin 100 of partial amt described smoke pipe 10 cross section projection in the plane overlap; The described first flow-disturbing fin 100 of another part quantity described smoke pipe 10 cross section projection in the plane overlap; The described first flow-disturbing fin 100 of partial amt and the described first flow-disturbing fin 100 of another part quantity described smoke pipe 10 cross section projection in the plane mutually stagger and partly overlap.Certainly, position relationship present embodiment between the first flow-disturbing fin 100 on not same surface is not restricted, Figure 6 shows that example, be positioned at sustained height position (being positioned at the same cross section institute of smoke pipe 10 in the plane) and there are 4 the first flow-disturbing fins 100, and, Figure 4 shows that example, be positioned at sustained height position and only have 1 the first flow-disturbing fin 100.

Preferably, the described first flow-disturbing fin 100 in described partial amt can distribute alternately with the described first flow-disturbing fin 100 in described another part quantity.Take smoke pipe 10 as the straight tube vertically placed, can stagger mutually by neighbouring two and on described side surface, in units of partly overlapping first flow-disturbing fin 100, vertically repeat arrangement.

Further, on each described side surface, the spacing distance often between adjacent two described first flow-disturbing fins 100 is arranged according to preset rules.Described can be that spacing distance often between adjacent two described first flow-disturbing fins 100 is all equal according to preset rules arrangement, or, describedly can to expand gradually along flow of flue gas direction for spacing distance often between adjacent two described first flow-disturbing fins 100 according to preset rules arrangement, or, describedly can to reduce gradually along flow of flue gas direction for spacing distance often between adjacent two described first flow-disturbing fins 100 according to preset rules arrangement.

Comparatively preferred, Figure 8 shows that example, described first flow-disturbing fin 100 can be positioned on the different rib of the single side surface of described support member 20 from two end points of the connecting line of described support member 20.First flow-disturbing fin 100 described at least one can share with the described first flow-disturbing fin 100 in adjacent side with at least one end points of the connecting line of described support member 20.Now, first flow-disturbing fin 100 can be arranged in support member 20 surface thereof, namely, there is between the connecting line of the first flow-disturbing fin 100 and support member 20 and the cross section of smoke pipe 10 angle for acute angle, also can think, first flow-disturbing fin 100 is not parallel with the cross section of smoke pipe 10 with the connecting line of support member 20, and then, first flow-disturbing fin 100 is for the up effect playing oblique guiding of flue gas, make to form roughly spiralling flue gas in smoke pipe 10, promote the distance of flue gas walking further.

Another embodiment of the application also provides a kind of smoke pipe of gas heater, comprising: outer tube; Be arranged at the multiple first flow-disturbing fins 100 in described outer tube, at least two described first flow-disturbing fins 100 described outer tube cross section projection in the plane mutually stagger and partly overlap; One in close at least two the described first flow-disturbing fins 100 of described cross section.

In the present embodiment, the inwall of described outer tube can be provided with the first projection outstanding in pipe, the outer wall of described outer tube is provided with corresponding first groove protruding with described first; And/or the outer wall of described outer tube can be provided with towards outer the second outstanding projection of pipe, the inwall of described outer tube is provided with corresponding second groove protruding with described second.

First is protruding with the first groove and second protrudingly all can be formed by impressing with the second groove, thus be convenient to outer tube can direct global formation.For the straight tube that outer tube is vertical, the first projection can be the spiralling structure within the outer tube on wall, or the first projection also can be the circular ring structure of the parallel vertical arrangement on multiple wall within the outer tube.Accordingly, the first groove is the spiralling structure on the outer wall of outer tube, or the first groove is the circular ring structure of multiple parallel vertical arrangement on outer tube outer wall.In view of, the second protruding structure with the first projection, arrangement mode can be identical, and then can consult above-mentioned first projection and arrange.Second groove can be consulted above-mentioned first groove and arrange.It should be noted that, the first projection, the first groove, the second projection, the second groove can be present on outer tube simultaneously.

First projection all can make the tube wall tangent plane of outer tube be roughly wave-like with the first groove and the second projection with the second groove, wherein, first projection and the second groove can increase the inwall of outer tube and the contact area of flue gas, first groove and the second projection can increase the outer wall of outer tube and the contact area of liquid, and then can increase heat exchange efficiency preferably.Wherein, outer tube can have various shape, structure, and only need its tube wall to be provided with the first above-mentioned projection, the first groove and/or second protruding, the second groove structure, the application is not as limit.For obtaining good heat-transfer effect, outer tube can adopt smoke pipe form conventional in the heat-exchanger rig such as screwed pipe or bellows, in the present embodiment, can take male-pipe as preferred scheme as outer tube.

Described first flow-disturbing fin 100 can be connected on the inwall of described outer tube.In view of the shape of the first flow-disturbing fin 100, structure and connected mode can be implemented with reference to disturbing flow device in above-mentioned embodiment, repeat no longer one by one herein.

Preferably, described at least one, the first flow-disturbing fin 100 can be acute angle with the angle of the cross section of described outer tube with the connecting line of the tube wall of described outer tube.Namely, first flow-disturbing fin 100 can be arranged in the inwall surface thereof of outer tube, first flow-disturbing fin 100 is not parallel with the cross section of outer tube with the connecting line of outer tube, and then, first flow-disturbing fin 100 is for the up effect playing oblique guiding of flue gas, make to form roughly spiralling flue gas in smoke pipe 10, promote the distance of flue gas walking further.

Preferably, the smoke pipe of present embodiment can also comprise the support member 20 be located in described outer tube.Described support member 20 extends in the same way with described outer tube; Described first flow-disturbing fin 100 is located on described support member 20.The shape of described support member 20, structure and connected mode can be implemented with reference to disturbing flow device in above-mentioned embodiment, repeat no longer one by one herein.First flow-disturbing fin 100 described at least one can be acute angle with the angle of the cross section of the connecting line of the sidewall of described support member 20 and described outer tube.Namely, first flow-disturbing fin 100 can be arranged in the sidewall surface thereof of support member 20, also can think, first flow-disturbing fin 100 is not parallel with the cross section of outer tube with the connecting line of support member 20, and then, first flow-disturbing fin 100, for the up effect playing oblique guiding of flue gas, makes in smoke pipe, form roughly spiralling flue gas, promotes the distance of flue gas walking further.Preferably, each first flow-disturbing fin 100 all can be arranged in the sidewall surface thereof of support member 20, can be equal to the angle of the cross section of described outer tube with the connecting line of the sidewall of described support member 20 preferably embodiment using each described first flow-disturbing fin 100.

Figure 8 shows that example, described support member 20 can be the quadrangular of square for cross section, each first flow-disturbing fin 100 is acute angle with the angle of the connecting line of the sidewall of described support member 20 and the cross section (also can be horizontal plane) of described outer tube, and namely each first flow-disturbing fin 100 is and is obliquely installed.Described first flow-disturbing fin 100 is positioned on the different rib of the single side surface of described support member 20 from two end points of the connecting line of described support member 20, meanwhile, the first flow-disturbing fin 100 described at least one is shared with the described first flow-disturbing fins 100 of two on adjacent two side surfaces with two end points of the connecting line of described support member 20.Can find out, on the single side surface of support member 20, the incline direction of neighbouring two the first flow-disturbing fins 100 can on the contrary or complementary or vertically arrange, simultaneously, be positioned at the sustained height position of support member 20, multiple first flow-disturbing fin 100 can be distributed with.

The inwall of described outer tube can also be provided with the heat-conducting plate extended in the same way with described outer tube.Heat-conducting plate is fixedly connected on the inwall of outer tube, and it can increase the contact area of outer tube and flue gas.Concrete, heat-conducting plate can be welded on the inwall of outer tube.

Another embodiment of the application also provides a kind of gas heater, comprising: the smoke pipe as above described in embodiment.Preferably, this gas heater can be volumetric gas water heater.

Any digital value quoted herein all comprises all values with the lower value of an incremented and upper value between lower limit to higher limit, there is the interval of at least Liang Ge unit between any lower value and any much higher value.For example, if set forth the quantity of parts or the value of process variable (such as temperature, pressure, time etc.) is from 1 to 90, preferably from 20 to 80, more preferably from 30 to 70, then object also lists such as 15 to 85,22 to 68,43 to 51,30 to 32 equivalences clearly to illustrate in this description.For the value being less than 1, suitably think that a unit is 0.0001,0.001,0.01,0.1.These are only the examples wanting clearly to express, and can think that likely the combining of numerical value of enumerating between minimum and peak is all set forth clearly at this description in a similar manner.

Except as otherwise noted, all scopes all comprise all numerals between end points and end points." approximately " or " being similar to " that use together with scope is suitable for two end points of this scope.Thus, " about 20 to 30 " are intended to cover " about 20 to about 30 ", at least comprise the end points indicated.

The all articles disclosed and reference, comprising patent application and publication, being incorporated into this for various purposes by quoting.Describe combination term " substantially by ... form " determined element, composition, parts or step should be comprised and not affect in fact other elements of basic novel feature of this combination, composition, parts or step.The combination of element, composition, parts or the step that term " comprises " or " comprising " describes here is used also to contemplate the embodiment be substantially made up of these elements, composition, parts or step.Here by use term " can ", be intended to illustrate " can " described any attribute of comprising is all optional.

Multiple element, composition, parts or step can be provided by single integrated component, composition, parts or step.Alternatively, single integrated component, composition, parts or step can be divided into multiple elements of separation, composition, parts or step.Be used for describing the open "a" or "an" of element, composition, parts or step and do not say element, composition, parts or step in order to get rid of other.

Should be appreciated that, above description is to carry out illustrating instead of in order to limit.By reading foregoing description, the many embodiments outside provided example and many application will be all apparent for a person skilled in the art.Therefore, the scope of this instruction should not determined with reference to foregoing description, but the four corner of the equivalent that should have with reference to claims and these claims is determined.For comprehensive object, all articles and with reference to comprising the open all by reference to being combined in herein of patent application and bulletin.Omit in aforementioned claim theme disclosed herein any in be not to abandon this body matter, also should not be considered as the part that this theme is not thought of as disclosed utility model theme by inventor.

Claims (22)

1. a disturbing flow device, it can be arranged in the smoke pipe for heat exchange, it is characterized in that, this disturbing flow device comprises:

Multiple first flow-disturbing fin, at least two described first flow-disturbing fins described smoke pipe cross section projection in the plane mutually stagger and partly overlap; One in close at least two the described first flow-disturbing fins in position that described cross section is got.

2. disturbing flow device as claimed in claim 1, is characterized in that, also comprise: the support member that can extend in the same way with described smoke pipe; Described first flow-disturbing fin is located on described support member.

3. disturbing flow device as claimed in claim 1, is characterized in that: at least two described first flow-disturbing fins described smoke pipe cross section the area staggered mutually of projection be in the plane not more than the area of its overlap.

4. disturbing flow device as claimed in claim 1, is characterized in that: the first flow-disturbing fin described at least one with the end of the underlapped part of the described projection of the first flow-disturbing fin described in other on be provided with the second flow-disturbing fin.

5. disturbing flow device as claimed in claim 1, is characterized in that: at least two described first flow-disturbing fins are located in the plane at same cross section place of described smoke pipe.

6. disturbing flow device as claimed in claim 2, is characterized in that: described support member is flat structure, it comprise two mutually back to side surface; Two described side surfaces are provided with at least two cross sections at described smoke pipe projection in the plane mutually stagger and partly overlapping described first flow-disturbing fin.

7. disturbing flow device as claimed in claim 2, it is characterized in that: the prism structure of described support member to be cross section be regular polygon, each side surface is provided with at least two cross sections at described smoke pipe projection in the plane mutually stagger and partly overlapping described first flow-disturbing fin.

8. disturbing flow device as claimed in claims 6 or 7, is characterized in that: the described first flow-disturbing fin on each described side surface is arranged into row.

9. disturbing flow device as claimed in claim 8, is characterized in that: on each described side surface, and the described first flow-disturbing fin of partial amt is in the cross section institute projection coincidence in the plane of described smoke pipe; The described first flow-disturbing fin of another part quantity described smoke pipe cross section projection in the plane overlap; The described first flow-disturbing fin of partial amt and the described first flow-disturbing fin of another part quantity described smoke pipe cross section projection in the plane mutually stagger and partly overlap.

10. disturbing flow device as claimed in claim 9, is characterized in that: the described first flow-disturbing fin in described partial amt and the described first flow-disturbing fin in described another part quantity distribute alternately.

11. disturbing flow devices as claimed in claim 8, is characterized in that: on each described side surface, and the spacing distance often between adjacent two described first flow-disturbing fins is arranged according to preset rules.

12. disturbing flow devices as claimed in claim 7, is characterized in that: described first flow-disturbing fin is positioned on the different rib of the single side surface of described support member from two end points of the connecting line of described support member.

13. disturbing flow devices as claimed in claim 12, is characterized in that: the described first flow-disturbing fin at least one end points of the connecting line of the first flow-disturbing fin and described support member described at least one and adjacent side shares.

The smoke pipe of 14. 1 kinds of gas heaters, is characterized in that, comprising:

Outer tube;

Be arranged at the multiple first flow-disturbing fins in described outer tube, at least two described first flow-disturbing fins described outer tube cross section projection in the plane mutually stagger and partly overlap; One in close at least two the described first flow-disturbing fins of described cross section.

15. smoke pipes as claimed in claim 14, is characterized in that: described first flow-disturbing fin is connected on the inwall of described outer tube.

16. smoke pipes as claimed in claim 15, is characterized in that: described at least one, the angle of the connecting line of the tube wall of the first flow-disturbing fin and described outer tube and the cross section of described outer tube is acute angle.

17. smoke pipes as claimed in claim 14, it is characterized in that, also comprise: be located at the support member in described outer tube, described support member and described outer tube extend in the same way; Described first flow-disturbing fin is located on described support member.

18. smoke pipes as claimed in claim 17, is characterized in that: described at least one, the angle of the connecting line of the sidewall of the first flow-disturbing fin and described support member and the cross section of described outer tube is acute angle.

19. smoke pipes as claimed in claim 18, is characterized in that: each described first flow-disturbing fin is equal with the angle of the cross section of described outer tube with the connecting line of the sidewall of described support member.

20. smoke pipes as claimed in claim 17, is characterized in that: the inwall of described outer tube is also provided with the heat-conducting plate extended in the same way with described outer tube.

21. smoke pipes as claimed in claim 14, is characterized in that: the inwall of described outer tube is provided with the first projection outstanding in pipe, and the outer wall of described outer tube is provided with corresponding first groove protruding with described first; And/or the outer wall of described outer tube is provided with towards outer the second outstanding projection of pipe, and the inwall of described outer tube is provided with corresponding second groove protruding with described second.

22. 1 kinds of gas heaters, is characterized in that, comprising: the smoke pipe as described in as arbitrary in claim 14 to 21.