CN207214461U - A kind of heat exchange fin of gas heater - Google Patents
A kind of heat exchange fin of gas heater Download PDFInfo
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- CN207214461U CN207214461U CN201721093396.4U CN201721093396U CN207214461U CN 207214461 U CN207214461 U CN 207214461U CN 201721093396 U CN201721093396 U CN 201721093396U CN 207214461 U CN207214461 U CN 207214461U
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Abstract
It the utility model is related to gas heater technical field, more particularly to a kind of heat exchange fin of gas heater.For the dissatisfactory deficiency of heat exchanger effectiveness of the heat exchange fin of existing gas heater, adopt the following technical scheme that：A kind of heat exchange fin of gas heater, including substrate, substrate is provided with least one set of water pipe hole and flanging bore, flanging bore is located above water pipe hole, being provided between the water pipe hole and the flanging bore makes flue gas from bottom to up accelerate the flue gas accelerated passage flowed, the flue gas accelerated passage lower end is towards water pipe hole, upper end is towards flanging bore, the substrate is provided with the first passage side plate and second channel side plate of evagination, and the first passage side plate, second channel side plate form the flue gas accelerated passage.The beneficial effects of the utility model are：Smoke evacuation resistance is effectively reduced, ensures flow of flue gas speed；Heat exchange area is increased, improves heat exchange efficiency；Improve heat convection effect.
Description
Technical field
It the utility model is related to gas heater technical field, more particularly to a kind of heat exchange fin of gas heater.
Background technology
Gas heater produces high-temperature flue gas by burner, and is given the thermal energy conduction of high-temperature flue gas by heat exchanger
Water, water is heated.The heat exchange of heat exchanger and water mainly realizes that heat exchange fin is imitated to heat exchange by heat exchange fin thereon
Rate plays an important role, and it is the important channel for improving heat exchange efficiency to improve heat exchange fin.
The heat exchange fin of existing gas heater, generally use punch forming.Heat exchange fin opens up water pipe on its substrate
Hole, water pipe hole nearby also open up flanging bore, and flanging bore causes flue gas circuitous flow in heat exchanger, when increase circulation exchanges heat
Between, improve heat exchange efficiency.But it is only limited by help of the flanging bore to improving heat exchange efficiency, it such as need to further improve heat exchange effect
Rate, generally require and increase flanging bore more preferably to be stopped to flue gas, or increase radiating fin density to increase heat exchange area,
But can so reduce flue gas circulation area, increase smoke evacuation resistance, easily cause clogged with soot or condensate corrosion occur.
To reduce resistance of discharging fume, increase heat exchange area, make smoke distribution uniform, the heat exchange of increase flue gas in a heat exchanger
Time, heat exchange efficiency is improved, each side's heat exchanging fin structure has carried out Beneficial, and achieves certain achievement.It is but existing
The heat exchanger effectiveness of heat exchange fin is still not ideal enough, is still improved space.
The content of the invention
Heat exchanger effectiveness dissatisfactory deficiency of the utility model for the heat exchange fin of existing gas heater, there is provided
A kind of heat exchange fin of gas heater, reduce smoke evacuation resistance, increase heat exchange area, improve heat exchange efficiency.
In order to solve the above technical problems, the utility model adopts the following technical scheme that：A kind of heat exchange wing of gas heater
Piece, including substrate, substrate are provided with least one set of water pipe hole and flanging bore, and flanging bore is located above water pipe hole, the water pipe hole
Being provided between the flanging bore makes the flue gas accelerated passage of flue gas acceleration flowing from bottom to up, under the flue gas accelerated passage
End is provided with the first passage side plate and second channel side plate of evagination, institute towards water pipe hole, upper end towards flanging bore, the substrate
State first passage side plate, second channel side plate forms the flue gas accelerated passage.
Heat exchange fin of the present utility model, flue gas accelerated passage is set between water pipe hole and flanging bore, from bottom to up
When flue gas flows through flue gas accelerated passage, flue gas flow rate is lifted rapidly, effectively reduces smoke evacuation resistance, meanwhile, flue gas accelerated passage by
The channel side plate shape of evagination is into passage side plate produces heat exchange with flue gas, increases heat exchange area, improves heat exchange efficiency.Cigarette
There is gas accelerated passage an enlarging flue gas acceleration can be achieved towards the flared section in water pipe hole.Flanging bore is located above water pipe hole,
Whole flanging bores are not necessarily referring to be respectively positioned on above all water pipe holes.
As an improvement, flow-stopping plate is provided between the flue gas accelerated passage and the flanging bore.Flue gas from bottom to up from
After being flowed out in flue gas accelerated passage, flow-stopping plate is run into, flow-stopping plate is allocated to flue gas flow field, and it is existing to avoid the occurrence of flue gas short circuit
As extending gas residence time, and make smoke distribution more uniform.Flow-stopping plate can obtain preferably perpendicular to flue gas accelerated passage
Blocking effect.
Preferably, the flow-stopping plate by substrate punch forming, has punching press fracture, the fracture direction on the substrate
Flue gas accelerated passage.Flow-stopping plate is easy to process by substrate punch forming, flow-stopping plate；Punching press fracture is towards flue gas accelerated passage, i.e.,
Punching press fracture flows side in gas, punching press fracture compared to flow-stopping plate separable flue gas air-flow closer to, punching press fracture to impact air-flow and
When pressure release, avoid flowing back, while strengthen the gas flow-disturbing effect between adjacent substrate.
As an improvement, the substrate is provided with multigroup water pipe hole and flanging bore, the flue gas accelerated passage, which is located at, most descends row
Water pipe hole and flanging bore between, the flue gas accelerated passage be in from substrate axis to both sides accelerate water conservancy diversion it is skewed.For
Increase heat exchange area, usual substrate is provided with multigroup water pipe hole and flanging bore；Flue gas accelerated passage is located at the water pipe hole for most descending row
Between flanging bore, the flow of flue gas of bottom is fastest, and flue gas acceleration effect is more notable；Flue gas naturally flows straight up
Dynamic, flue gas accelerated passage is in accelerate the skewed of water conservancy diversion from substrate axis to both sides, and the flue gas flowed vertically is changed into tilting
Flowing, gas residence time is improved, and flue gas flow field is allocated, make smoke distribution uniform.Corresponding flanging bore positioned at pair
Above the water pipe hole answered, water pipe hole is arranged staggeredly and uniformly up and down, and each water pipe bore dia is identical, in three adjacent water pipe holes
Heart line forms equilateral triangle.Generally most descend the water pipe hole number of row most, most descend the quantity of drain tube holes and often arrange flanging bore
Quantity is consistent.
As an improvement, being additionally provided with additional flue gas accelerated passage on the substrate, the additional flue gas accelerated passage is positioned at upper
Under between adjacent two flanging bores, the additional flue gas accelerated passage is in the inclination for accelerating water conservancy diversion by two lateral axis of substrate
Shape.Additional flue gas accelerated passage is set between two neighbouring flanging bores, improves flow of flue gas speed, reduces smoke evacuation resistance
Power, and increase heat exchange area；Additional flue gas accelerated passage is in accelerate the skewed of water conservancy diversion by two lateral axis of substrate so that cigarette
Gas circuitous flow, extend gas residence time.Add flue gas accelerated passage is towards the flared section of lower flanging bore with an enlarging
With flue gas acceleration effect.Additional flue gas accelerated passage can be identical with flue gas accelerated passage structure.
Preferably, the additional flue gas accelerated passage is located at the airflow downstream of the flue gas accelerated passage.According to flue gas
Sequence of flow distinguishes upstream and downstream, and upstream is that close burner one end is also lower section, and downstream is that remote burner one end is also top.
The airflow downstream that additional flue gas accelerated passage is located at the flue gas accelerated passage refers to that the additional flue gas accelerated passage of top is with
Towards same flanging bore, flanging bore is located at below additional flue gas accelerated passage and accelerated positioned at flue gas logical the flue gas accelerated passage of side
Above road.Upstream flue gas accelerated passage increase flow of flue gas path, extends the down smoke-discharging gas residence time, improving heat exchanging efficiency, on
The flue gas accelerated passage of trip is also once accelerated to flue gas；Downstream adds flue gas accelerated passage and the air-flow on its path is carried out
Secondary acceleration, the CO flue gas trapped gas time is arranged in shortening, shorten and stop；Simultaneously because flow-stopping plate blocks, the gas of flow-stopping plate dorsal part
Force down, the air-flow after once accelerating aspirates from flanging bore, and gas flows between accelerating adjacent substrate, further lifting heat exchange effect
Rate.
As an improvement, being provided with breach at left and right sides of the substrate, the breach is located at flue gas accelerated passage and additional flue gas
Between accelerated passage.Breach is provided with left and right sides of substrate, increases the flow-path-length of the flue gas along the flowing of substrate both sides, extends
Gas residence time；Breach is located between flue gas accelerated passage and additional flue gas accelerated passage, reduces smoke backflow.Breach is set
Put so that the passage formed between the flanging of substrate and the flange in water pipe hole can also play certain acceleration to flue gas.Breach
Can be in circular arc, to reduce smoke flow resistance.
As an improvement, being additionally provided with spoiler on the substrate, the spoiler is located at flanging bore and the water pipe hole of most upper row
Between, central point line of the spoiler in adjacent flanging bore with water pipe hole is parallel to be moved up.The flanging bore and water pipe of most upper row
Spoiler is set between hole, and spoiler stops to flue gas, extends gas residence time, improves heat convection effect, and right
Flue gas is allocated so that smoke distribution is uniform；Central point line of the spoiler in adjacent flanging bore with water pipe hole is parallel to be moved up,
And non-perpendicular to vertical direction, its flow direction opposed vertical direction is inclined when being flowed through due to flue gas between water pipe hole and flanging bore
Tiltedly, spoiler face flow of flue gas direction, blocking effect is more preferably.The height of spoiler is higher than flanging bore along two central point of hole lines
The tangent line height in direction, make full use of the flow area of flanging bore.Spoiler can be identical with flow-stopping plate, can also there is punching press directed downwardly
Fracture；Spoiler can be along substrate axis symmetry arrangement, and the spoiler close to axis both sides is in up-small and down-big splayed,
To air flow guiding in the middle part of substrate.
Preferably, the flue gas accelerated passage and/or additional flue gas accelerated passage from bottom to up include lower flared section and
Narrow section, down, described narrow section of enlarging is upward for the enlarging of the lower flared section.The fluid of restricted flow is in the excessively stream by diminution
During section, the phenomenon of flow velocity increase occurs in fluid, therefore flue gas accelerated passage and/or additional flue gas accelerated passage have enlarging
Lower flared section directed downwardly has flue gas acceleration effect.Flue gas accelerated passage and/or additional flue gas accelerated passage also include enlarging
Upward narrow section, flow of flue gas is oriented to so that smoke distribution is more uniform.Flue gas accelerated passage and/or additional flue gas
Accelerated passage can be the one-part form of a lower flared section, can be the two-part to be connected by upper and lower flared section, can have
The three-stage of interlude.Either one-part form, two-period form or three-stage, each section of passage side plate can be straight line side plate, also may be used
To be curve side plate.Narrow section of maximum enlarging is smaller than the maximum enlarging spacing of lower flared section；Lower flared section flow path
Length is more than the length of upper flared section flow path.
Preferably, the described narrow section straight section for including the lower flared section of connection and the upper flared section towards flanging bore, it is described on
The angle of flared section is not more than the angle of lower flared section.Flue gas accelerated passage and/or additional flue gas accelerated passage wrap from bottom to up
Lower flared section, straight section and upper flared section are included, lower flared section can gather a large amount of flue gases, and the flue gas after gathering flows when passing through straight section
Speed is lifted, and upper flared section is oriented to flue gas, and increase flue gas sprays angle so that smoke distribution is more uniform.Upper enlarging
The angle of section is not more than the angle of lower flared section, to cause flue gas to accelerate to flow.Angle, the flow-path-length of lower flared section
Upper flared section is all higher than with maximum enlarging spacing, to obtain preferable flue gas acceleration effect.
Preferably, the flue gas accelerated passage and/or the flow-stopping plate are located between neighbouring water pipe hole
Between the two outer tangent lines in neighbouring water pipe hole, to obtain preferable flue gas acceleration effect and preferable baffle effect.
Preferably, being provided with flanging at left and right sides of the substrate, the water pipe hole is provided with flange, and the flange is higher than described
Flanging, the first passage side plate, second channel side plate are higher than the flanging.Flanging is provided with left and right sides of substrate, there is cigarette
Effect, while increase heat exchange area；Water pipe hole flanging is higher than substrate flanging, and can be offseted with adjacent substrate, and water pipe hole can be complete
Full parcel heat exchanging water pipe, increases heat exchange area；First passage side plate, second channel side plate are higher than substrate flanging, and can with it is adjacent
Substrate offsets so that more flue gases enter in flue gas accelerated passage.Water pipe hole flanging and passage side plate can be contour.
The beneficial effects of the utility model are：Flue gas accelerated passage is set between water pipe hole and flanging bore, from bottom to up
Flue gas when flowing through flue gas accelerated passage, flue gas flow rate is lifted rapidly, effectively reduces smoke evacuation resistance, ensures flow of flue gas speed,
Meanwhile flue gas accelerated passage produces heat exchange by the channel side plate shape of evagination into, passage side plate and flue gas, increases heat-transfer surface
Product, improves heat exchange efficiency；The flow-path-length of the flue gas along the flowing of passage side plate is added, extends gas residence time,
Improve heat convection effect；Passage side plate has certain water conservancy diversion effect to flue gas so that flue gas flows around water pipe hole.
Brief description of the drawings
Fig. 1 is the structural representation after the multi-disc heat exchange fin assembling of the utility model embodiment one.
Fig. 2 is the dimensional structure diagram of the heat exchange fin of the utility model embodiment one.
Fig. 3 is the front view of the heat exchange fin of the utility model embodiment one.
Fig. 4 is the enlarged drawing of the flue gas accelerated passage of the heat exchange fin of the utility model embodiment one.
Fig. 5 is the enlarged drawing of the flue gas accelerated passage of the heat exchange fin of the utility model embodiment two.
Fig. 6 is the enlarged drawing of the flue gas accelerated passage of the heat exchange fin of the utility model embodiment three.
Fig. 7 is the enlarged drawing of the flue gas accelerated passage of the heat exchange fin of the utility model embodiment four.
Reference：01st, heat exchange fin, 1, substrate, 11, fracture, 12, breach, 13, flanging, 2, water pipe hole, 21, flange,
3rd, flanging bore, 31, flange, 4, flue gas accelerated passage, 41, first passage side plate, 411, weld part, 412, vertical component effect, 42, second
Passage side plate, 421, weld part, 422, vertical component effect, 43, channel base plate, 4A, lower flared section, 4B, straight section, 4C, upper flared section, 5,
Flow-stopping plate, 6, additional flue gas accelerated passage, 7, spoiler, 02, heat exchanging water pipe.
Embodiment
To make present invention purpose, technical scheme and beneficial effect of greater clarity, below in conjunction with the accompanying drawings to this
The embodiment of application is illustrated, it is necessary to illustrate, in the case where not conflicting, in the embodiment and embodiment in the application
Feature can mutually be combined.
Fig. 1 to Fig. 7, a kind of heat exchange fin of gas heater, including substrate are referred to, substrate is provided with least one set of water
Pore and flanging bore, flanging bore are located above water pipe hole, and being provided between the water pipe hole and the flanging bore makes from bottom to up
The flue gas accelerated passage of flue gas acceleration flowing, the flue gas accelerated passage lower end are described towards flanging bore towards water pipe hole, upper end
Substrate is provided with the first passage side plate and second channel side plate of evagination, and the first passage side plate, second channel side plate are formed
The flue gas accelerated passage.
Any water conservancy diversion is not provided between existing heat exchange fin, its water pipe hole and corresponding flanging bore above water pipe hole
Structure, the utility model set flue gas accelerated passage between water pipe hole and corresponding flanging bore above water pipe hole, from
Under supreme flue gas flow through flue gas accelerated passage after accelerate to spray, flue gas flow rate is lifted rapidly, effectively reduces smoke evacuation resistance, is ensured
Flow of flue gas speed, meanwhile, flue gas accelerated passage is by two pieces of channel side plate shapes of evagination into passage side plate produces heat with flue gas and handed over
Change, increase heat exchange area, improve heat exchange efficiency；The setting of two blocks of passage side plates adds the flue gas flowed along passage side plate
Flow-path-length, extend gas residence time, improve heat convection effect；Passage side plate has certain water conservancy diversion to flue gas
Effect is so that flue gas flows around water pipe hole.
Embodiment one
Referring to Fig. 1 to Fig. 4, a kind of heat exchange fin 01 of gas heater, including substrate 1, substrate 1 are provided with least one set
Water pipe hole 2 and flanging bore 3, flanging bore 3 are located at the top of water pipe hole 2, be provided between the water pipe hole 2 and the flanging bore 3 make from
Under supreme flue gas accelerate the flue gas accelerated passage 4 of flowing, the lower end of flue gas accelerated passage 4 is towards water pipe hole 2, upper end direction
Flanging bore 3, the substrate 1 are provided with the first passage side plate 41 and second channel side plate 42 of evagination, the first passage side plate
41st, second channel side plate 42 forms the flue gas accelerated passage 4.
Referring to Fig. 1, multi-disc heat exchange fin 01 is contradicted successively, stacking assembling, and heat exchange is set in the water pipe hole 2 of heat exchange fin 01
Water pipe 02.The one side of substrate 1 of heat exchange fin 01 is flushed, and another side is contradicted each other by water pipe hole 2 and flanging bore 3.
Referring to Fig. 2 and Fig. 3, flow-stopping plate 5 is provided between the flue gas accelerated passage 4 and the flanging bore 3.Flue gas is via cigarette
After gas accelerated passage 4 sprays, flow-stopping plate 5 stops to flue gas, avoids flue gas from quickly flowing away, and extends gas residence time, carries
High heat convection effect；Flow-stopping plate 5 is allocated to flue gas simultaneously, makes smoke distribution more uniform.Flow-stopping plate 5 is perpendicular to substrate
1。
The flow-stopping plate 5 has a punching press fracture 11 by the punch forming of substrate 1 on the substrate 1, the fracture 11 is towards cigarette
Gas accelerated passage 4.Flow-stopping plate 5 is easy to process by the punch forming of substrate 1, flow-stopping plate 5；Punching press fracture 11 is towards flue gas accelerated passage
4, i.e. punching press fracture 11 flows side in gas, and punching press fracture 11 be located at below flow-stopping plate 5, punching press fracture 11 to impact air-flow and
When pressure release, avoid flowing back, while strengthen the gas flow-disturbing effect between adjacent substrate 1.Between flue gas accelerated passage 4 and flanging bore 3
Flow-stopping plate 5 perpendicular to substrate 1, and the axis of opposing substrate 1 is symmetrical in splayed.
The substrate 1 is provided with multigroup water pipe hole 2 and flanging bore 3, and the flue gas accelerated passage 4 is located at the water pipe for most descending row
Between hole 2 and flanging bore 3, the flue gas accelerated passage 4 is in accelerate the skewed of water conservancy diversion from the axis of substrate 1 to both sides.To increase
Big heat exchange area, is typically provided with multigroup water pipe hole 2 and flanging bore 3 on substrate 1, and in the present embodiment, substrate 1 is provided with two groups of water pipes
Hole 2 and two groups of flanging bores 3, each group is also a row.Flue gas accelerated passage 4 be located at most descend row water pipe hole 2 and flanging bore 3 it
Between, bottom is that the flow of flue gas of most upstream is fastest, and flue gas acceleration effect is the most notable；Flue gas naturally flows straight up
It is dynamic, and the flue gas between lower drain tube holes 3 is more, flue gas accelerated passage 4 is in accelerate inclining for water conservancy diversion from the axis of substrate 1 to both sides
It is ramp-like, the flue gas flowed vertically is changed into oblique flow, improves gas residence time, and flue gas flow field is allocated, make cigarette
Gas is evenly distributed.The axis of 4 opposing substrate of flue gas accelerated passage 1 is symmetrical in herringbone, and it is located at the outermost of substrate 1 or so
Between water pipe hole 2 among the flanging bore 3 of side and lower row.In two drain tube holes 2, the lower quantity of drain tube holes 2 is more than upper drainpipe
Hole 2, two drain tube holes are staggered about 2, and the quantity of lower drain tube holes 2 is three, and the quantity of upper drain tube holes 2 is two.
Certainly, in other embodiments, the row and every row amount of water pipe hole 2 and flanging bore 3 can be with respective changes, with suitable
Answer the heat exchanger of different dimensions etc..
Additional flue gas accelerated passage 6 is additionally provided with the substrate 1, the additional flue gas accelerated passage 6 is positioned at neighbouring
Two flanging bores 3 between, the additional flue gas accelerated passage 6 is in by the skewed of the lateral axis acceleration water conservancy diversion of 1 liang of substrate.
Additional flue gas accelerated passage 6 is set between two neighbouring flanging bores 3, flue gas accelerated passage 6 is added and acts on and the same cigarette of principle
Gas accelerated passage 4, flow of flue gas speed can be improved, reduce smoke evacuation resistance, and increase heat exchange area；Additional flue gas accelerated passage
6 be in accelerate the skewed of water conservancy diversion by 1 liang of lateral axis of substrate so that flue gas circuitous flow, extends gas residence time.It is additional
The axis of 6 opposing substrate of flue gas accelerated passage 1 is symmetrical in splayed.Additional flue gas accelerated passage 6 and flue gas accelerated passage 4
Size is identical, to facilitate processing；Also can be different, size etc. is adjusted accordingly, to obtain more preferable effect.
The additional flue gas accelerated passage 6 is located at the airflow downstream of the flue gas accelerated passage 4.High-temperature flue gas is from bottom to up
Flowing, lower end is air-flow upstream, and upper end is airflow downstream.The flue gas accelerated passage 4 of upstream extends the flow path of down smoke-discharging gas,
Increase gas residence time, improving heat exchanging efficiency, flue gas accelerated passage 4 is once accelerated to flue gas, ensures flow of flue gas speed
Degree；The additional flue gas accelerated passage 6 in downstream carries out secondary acceleration to the air-flow on its path, when arranging CO flue gas trapped gas in shortening
Between, shorten and stop.Simultaneously because flow-stopping plate 5 blocks, the air pressure of the dorsal part of flow-stopping plate 5 is low, and the air-flow after once accelerating is from flanging bore 3
Middle suction, gas flows between accelerating adjacent substrate, further improving heat exchanging efficiency.
The left and right sides of substrate 1 is provided with breach 12, and the breach 12 is located at flue gas accelerated passage 4 and accelerated with additional flue gas
Between passage 6.By setting breach 12 so that the flanging 13 of the left and right sides of substrate 1 at breach 12 and the water pipe hole 2 of lower row
Gap is smaller between flange 21, has certain acceleration effect to flue gas, while prevents the flue gas sprayed from flue gas accelerated passage 4
Backflow.Breach 12 extends the flow-path-length of the flue gas along the flowing of the both sides of substrate 1, increases gas residence time.Breach 12
It also is located between 1 or so outermost water pipe hole 2 of substrate and flanging bore 3.Breach 12 is circular arc cutaway 12, is compared to breach 12
During straight flange, reduce smoke flow resistance.
Certainly, in other embodiments, manufacture and consider for large-scale industry, the left and right sides of substrate 1 can not open up breach
12, the left and right sides of substrate 1 is one section of linear pattern or two sections of linear patterns.
Gap is provided between the adjacent water pipe hole 2 in the lower end of substrate 1, gap is in circular arc.The top both sides of substrate 1 are in lean-in
Oblique splayed.
Flanging bore 3 includes the center flanging bore 3 being arranged between upper and lower conduit hole 2, and the center flanging bore 3 arrives adjacent thereto
The distance between three water pipe holes 2 it is equal.The flange height of flanging bore 3 can be highly consistent with the flanging 13 of substrate 1.
Spoiler 7 is additionally provided with the substrate 1, the spoiler 7 is located between flanging bore 3 and the water pipe hole 2 of most upper row,
The spoiler 7 is moved up in adjacent flanging bore 3 is parallel with the central point line in water pipe hole 2.Spoiler 7 is in the adjacent He of flanging bore 3
The central point line in water pipe hole 2 is parallel to be moved up, rather than and horizontal direction parallel, there is more preferable flue gas blocking effect.Spoiler 7
Also there can be punching press fracture 11 on substrate 1, fracture 11 is below spoiler 7 by the punch forming of substrate 1.Spoiler 7 and flow-stopping plate
5 is identical.
Referring to Fig. 4, the flue gas accelerated passage 4 and/or additional flue gas accelerated passage 6 include lower flared section 4A from bottom to up
And narrow section, down, described narrow section of enlarging is upward for the enlarging of the lower flared section 4A.Narrow section of maximum enlarging is smaller than lower expansion
The maximum enlarging spacing of mouth section.
The described narrow section straight section 4B for including the lower flared section 4A of the connection and upper flared section 4C towards flanging bore 3, the upper expansion
Mouthful section 4C angle is not more than lower flared section 4A angle, and upper flared section 4C enlarging is towards flanging bore 3.Upper flared section 4C is most
Big enlarging is smaller than lower flared section 4A maximum enlarging spacing；The length of the lower flared section 4A flow paths is more than upper enlarging
The length of section 4C flow paths.Lower flared section 4A gathers flue gas, and straight section 4B is oriented to, and upper flared section 4C is allocated to flue gas
So that smoke distribution is uniform.
Flue gas accelerated passage 4 and/or additional flue gas accelerated passage 6 are arranged on substrate 1, its with substrate 1 and it is non-integral into
Type.Flue gas accelerated passage 4 and/or additional flue gas accelerated passage 6 can be fixed on substrate 1 by such as soldering of suitable technique.For
Convenient that first passage side plate 41 and second channel side plate 42 are fixed on substrate 1, first passage side plate 41 includes weld part 411
With vertical component effect 412, second channel side plate 42 includes weld part 421 and vertical component effect 422, and weld part 411 and weld part 421 are positioned at vertical
Straight portion 412 and the both sides of vertical component effect 422.
Certainly, in other embodiments, flue gas accelerated passage 4 and/or additional flue gas accelerated passage 6 can also be only by lower expansions
Mouth section 4A compositions, can be made up of lower flared section 4A and straight section 4B, can be connected by lower flared section 4A and with lower flared section upper
Flared section 4A is formed.No matter flue gas accelerated passage 4 and/or additional flue gas accelerated passage 6 are formed by several sections or including several sections, often
Section can be linear or curve-like.The first passage side of flue gas accelerated passage 4 and/or additional flue gas accelerated passage 6
Plate 41 and second channel side plate 42 can not be split type, can be connected as a single entity by plate.
Referring to Fig. 2 and Fig. 3, the flue gas accelerated passage 4 and/or the flow-stopping plate 5 be located at neighbouring water pipe hole 3 it
Between, i.e., between the two outer tangent lines in neighbouring water pipe hole 3, to obtain preferable flue gas acceleration effect and preferable baffle
Effect.
The left and right sides of substrate 1 is provided with flanging 13, and the water pipe hole 2 is provided with flange 21, and the flange 21 is higher than described
Flanging 13.The left and right sides of substrate 1 sets flanging 13, and flanging 13 has cigarette effect, while increases heat exchange area；Water pipe hole 2
Flange 21 be higher than the flanging 13 of substrate 1, flange 21 can offset with adjacent substrate 1, water pipe hole 2 can fully wrapped around heat exchanging water pipe,
Increase heat exchange area.
The first passage side plate 41, second channel side plate 42 are higher than the flanging 13, and first passage side plate 41, second is logical
Road side plate 42 is higher than the flanging 13 of substrate 1, and can be offseted with adjacent substrate 1 so that more flue gases enter flue gas and accelerate to lead to
In road 4 and/or additional flue gas accelerated passage 6.Flange 21 and first passage side plate 41, the second channel side plate 42 in water pipe hole 2 can
It is contour.
The operation principle of the present embodiment is：During work, flue gas is between bottom enters adjacent substrate 1, to run into from upstream
First time shunting is carried out after lower drain tube holes 2：Flanging 13 and water of the partial fume along the left and right sides edge of substrate 1 at breach 12
Gap between pore 2 accelerates to flow up, and runs into row's flanging bore 3 under both sides, and it is secondary to flue gas progress that flanging bore 3 is arranged under both sides
Shunting, is allocated to flue gas；Partial fume flows up and runs into lower row center flanging bore 3, and center flanging bore 3 enters to flue gas
Row second diffluence, evenly distributes flue gas；Partial fume enters in the flue gas accelerated passage 4 of lower row, and flue gas is from flue gas accelerated passage 4
After ejection, due to the stop of flow-stopping plate 5, extend gas residence time, improve heat convection effect, while flue gas accelerated passage 4
Flue gas is allocated, makes smoke distribution more uniform.The flue gas of the second diffluence by lower row both sides flanging bore 3 of both sides,
Entering the additional flue gas accelerated passage 6 of upper row after deceleration, additional flue gas accelerated passage 6 raises speed to flue gas and ensures velocity of flue gas,
The flanging bore 3 of the row of spraying to both sides, the flanging bore 3 of upper row both sides are shunted three times to flue gas after flue gas speed-raising, increase flue gas
Residence time, heat convection effect is improved, improve heat exchange efficiency；The middle flue gas stream by the second diffluence of center flanging bore 3
Supreme row center flanging bore 3, upper row center flanging bore 3 are shunted three times to flue gas, make flue gas 2 liang of effluents of upward drain tube holes
It is dynamic, extend gas residence time, the spoiler 7 between upper row center flanging bore 3 and upper drain tube holes 2 stops to flue gas,
Further extend gas residence time.During flue gas flows from bottom to up, due to flue gas accelerated passage 4, breach 12, attached
The setting of smoke adding gas accelerated passage 6 so that partial fume can flow along heat-exchanging water pore 2, the flue gas that increase exchanges heat with water pipe hole 2
Volume；Due to the setting of flanging bore 3, flanging bore 3 is allocated to flue gas so that smoke distribution is uniform；Because flue gas accelerates to lead to
Road 4 and additional flue gas accelerated passage 6, reduce smoke flow resistance, ensure flow of flue gas speed.
Embodiment two
The difference of embodiment two and embodiment one is the structure of flue gas accelerated passage 4.
Referring to Fig. 5, there is lower flared section 4A, straight section 4B and upper flared section 4C compared to the flue gas accelerated passage 4 of embodiment one,
The flue gas accelerated passage 4 of the present embodiment only has enlarging lower flared section 4A directed downwardly.Form the first passage of flue gas accelerated passage 4
Side plate 41 and second channel side plate 42 have weld part and vertical component effect.Flue gas accelerated passage 4 is still had using the structure of embodiment two
There is certain flue gas acceleration effect, and first passage side plate 41 and second channel side plate 42 is easy to process.
Embodiment two is identical with the other structures and effect of embodiment one, will not be described here.
Embodiment three
The difference of embodiment three and embodiment one is the structure of flue gas accelerated passage 4.
Referring to Fig. 6, there is lower flared section 4A, straight section 4B and upper flared section 4C compared to the flue gas accelerated passage 4 of embodiment one,
The flue gas accelerated passage 4 of the present embodiment only has lower flared section 4A and straight section 4B.Form the first passage side of flue gas accelerated passage 4
Plate 41 and second channel side plate 42 have weld part and vertical component effect.Flue gas accelerated passage 4 is still had using the structure of embodiment three
Certain flue gas acceleration effect, and straight section 4B has certain water conservancy diversion effect so that smoke distribution is more uniformly distributed.
Embodiment three is identical with the other structures and effect of embodiment one, will not be described here.
Example IV
The difference of example IV and embodiment one is the structure of flue gas accelerated passage 4.
Referring to Fig. 7, compared to first passage side plate 41 and second channel side of the flue gas accelerated passage 4 by split of embodiment one
Plate 42 is formed, and the first passage side plate 41 and second channel side plate 42 in the present embodiment are connected as a single entity by channel base plate 43.It is logical
The setting of road bottom plate 43, certain stop is generated to flue gas, its flue gas acceleration effect is not so good as embodiment one.
Example IV is identical with the other structures and effect of embodiment one, will not be described here.
In other embodiments, flow-stopping plate 5, additional flue gas accelerated passage 6, spoiler 7, the grade of breach 12 can be not provided with or only
Set it is some, and its structure, distribution can respective change.The structure of flue gas accelerated passage 4 also can respective change, as long as it has
Certain flue gas acceleration effect.
More than, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited thereto,
It is familiar with the those skilled in the art and should be understood that the utility model includes but is not limited in accompanying drawing and above embodiment
The content of description.Any modification without departing from function and structure principle of the present utility model is intended to be included in the model of claims
In enclosing.
Claims (10)
1. a kind of heat exchange fin of gas heater, including substrate, substrate is provided with least one set of water pipe hole and flanging bore, flange
Hole position is above water pipe hole, it is characterised in that：Being provided between the water pipe hole and the flanging bore adds flue gas from bottom to up
The flue gas accelerated passage of speed flowing, the flue gas accelerated passage lower end is towards water pipe hole, and upper end is towards flanging bore, on the substrate
First passage side plate and second channel side plate provided with evagination, the first passage side plate, second channel side plate form the cigarette
Gas accelerated passage.
A kind of 2. heat exchange fin of gas heater according to claim 1, it is characterised in that：The flue gas accelerated passage
Flow-stopping plate is provided between the flanging bore.
A kind of 3. heat exchange fin of gas heater according to claim 2, it is characterised in that：The flow-stopping plate is by substrate
Punch forming, has punching press fracture on the substrate, and the fracture is towards flue gas accelerated passage.
A kind of 4. heat exchange fin of gas heater according to claim 1, it is characterised in that：The substrate is provided with more
Group water pipe hole and flanging bore, the flue gas accelerated passage are located at most to descend between the water pipe hole of row and flanging bore, and the flue gas accelerates
Passage is in accelerate the skewed of water conservancy diversion from substrate axis to both sides.
A kind of 5. heat exchange fin of gas heater according to claim 4, it is characterised in that：It is additionally provided with the substrate
Additional flue gas accelerated passage, the additional flue gas accelerated passage is between two neighbouring flanging bores, the additional flue gas
Accelerated passage is in accelerate the skewed of water conservancy diversion by two lateral axis of substrate.
A kind of 6. heat exchange fin of gas heater according to claim 5, it is characterised in that：The additional flue gas accelerates
Passage is located at the airflow downstream of the flue gas accelerated passage.
A kind of 7. heat exchange fin of gas heater according to claim 5, it is characterised in that：At left and right sides of the substrate
Provided with breach, the breach is located between flue gas accelerated passage and additional flue gas accelerated passage.
A kind of 8. heat exchange fin of gas heater according to claim 4, it is characterised in that：It is additionally provided with the substrate
Spoiler, the spoiler are located between flanging bore and the water pipe hole of most upper row, and the spoiler is in adjacent flanging bore and water pipe
The central point line in hole is parallel to be moved up.
A kind of 9. heat exchange fin of gas heater according to claim 1 to 8 any one, it is characterised in that：It is described
Flue gas accelerated passage and/or additional flue gas accelerated passage include lower flared section and narrow section, the expansion of the lower flared section from bottom to up
Mouth down, described narrow section of enlarging is upward.
A kind of 10. heat exchange fin of gas heater according to claim 9, it is characterised in that：Described narrow section includes connecting
The straight section of lower flared section and the upper flared section towards flanging bore are connect, the angle of the upper flared section is not more than the folder of lower flared section
Angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721093396.4U CN207214461U (en) | 2017-08-29 | 2017-08-29 | A kind of heat exchange fin of gas heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721093396.4U CN207214461U (en) | 2017-08-29 | 2017-08-29 | A kind of heat exchange fin of gas heater |
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| Publication Number | Publication Date |
|---|---|
| CN207214461U true CN207214461U (en) | 2018-04-10 |
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ID=61825701
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721093396.4U Active CN207214461U (en) | 2017-08-29 | 2017-08-29 | A kind of heat exchange fin of gas heater |
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| CN (1) | CN207214461U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081755A (en) * | 2019-04-25 | 2019-08-02 | 四川陆亨能源科技有限公司 | A kind of fume afterheat exchanger |
-
2017
- 2017-08-29 CN CN201721093396.4U patent/CN207214461U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081755A (en) * | 2019-04-25 | 2019-08-02 | 四川陆亨能源科技有限公司 | A kind of fume afterheat exchanger |
| CN110081755B (en) * | 2019-04-25 | 2023-12-26 | 四川陆亨能源科技有限公司 | Residual flue gas heat exchanger |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230518 Address after: Building 2, No. 52, 22nd Street, Baiyang Street, Qiantang New District, Hangzhou City, Zhejiang Province, 310000 Patentee after: Hangzhou Jiuchuang Home Appliances Co.,Ltd. Address before: No. 999, Mei Li Road, Huaiyin District, Ji'nan, Shandong Patentee before: JOYOUNG Co.,Ltd. |