CN108168075A - Gas heater and its heat exchanger - Google Patents
Gas heater and its heat exchanger Download PDFInfo
- Publication number
- CN108168075A CN108168075A CN201810141786.7A CN201810141786A CN108168075A CN 108168075 A CN108168075 A CN 108168075A CN 201810141786 A CN201810141786 A CN 201810141786A CN 108168075 A CN108168075 A CN 108168075A
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- CN
- China
- Prior art keywords
- heat exchange
- heat
- heat exchanger
- exchange tubes
- thermal insulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000000712 assembly Effects 0.000 claims abstract description 20
- 238000000429 assembly Methods 0.000 claims abstract description 20
- 238000009413 insulation Methods 0.000 claims description 74
- 238000002485 combustion reaction Methods 0.000 claims description 34
- 239000000463 material Substances 0.000 claims description 11
- 230000008859 change Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 25
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 239000007789 gas Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 230000005855 radiation Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
- F24H1/145—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form using fluid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Geometry (AREA)
- Details Of Fluid Heaters (AREA)
Abstract
The present invention relates to technical field of water heaters, more particularly to a kind of gas heater and its heat exchanger, it includes heat exchanger shell and the heat exchange tube assemblies in the shell heat exchanger body, the heat exchange tube assemblies include at least two setting up and down and series connection set of heat exchange tubes, each set of heat exchange tubes includes multiple horizontally arranged and series connection heat exchange straight tube, and the top of the heat exchange straight tube of the underlying set of heat exchange tubes is higher than the bottom of the straight tube that exchanges heat for the set of heat exchange tubes being located above in the two neighboring set of heat exchange tubes.Gas heater and its heat exchanger provided by the present invention by by the top of the heat exchange straight tube in set of heat exchange tubes underlying in two neighboring set of heat exchange tubes be higher than be located above set of heat exchange tubes heat exchange straight tube bottom, to reduce the height of heat exchanger, reduce it and manufacture cost.
Description
Technical field
The present invention relates to technical field of water heaters, more particularly to a kind of heat exchanger and including above-mentioned heat exchanger
Gas heater.
Background technology
Gas heater is also known as gas water-heating furnace, refers to, using combustion gas as fuel, by combustion heating mode, heat be passed
It is delivered in the cold water for flowing through heat exchanger, to reach a kind of gas appliance for preparing hot water purpose.
Burning chamber shell and the faying face of heat exchanger shell are put down substantially with burner fire hole horizontal face in gas heater
Together.The radiations heat energy largely released can be such that casing surface temperature drastically increases during due to burning, easily burn, crumple or scaling loss
It is bad.It burns, crumple or scaling loss bad the occurrence of in order to prevent, be in the prior art made the height of heat exchanger shell very
Height, height package range covers combustion heat radiation risk region, and is used in the outer surface of entire housing around multi-turn water inlet pipe
Water to be heated cools down surface of shell in water inlet pipe.However, due to the excessive height of heat exchanger shell, water inlet pipe is caused
Material utilization amount increases, higher so as to cause cost；In addition to this, existing heat exchanger material is mainly oxygen-free copper, however
The areas such as Shanxi, northwest, water quality is poor, more serious to oxygen-free copper Heat-exchanger Corrosion.
Invention content
(1) technical problems to be solved
It is an object of the present invention to provide heat exchangers a kind of simple in structure and relatively low production cost.
It is a further object to provide gas heaters a kind of simple in structure and relatively low production cost.
(2) technical solution
In order to solve the above technical problem, the present invention provides a kind of heat exchanger, including heat exchanger shell and
Heat exchange tube assemblies in the shell heat exchanger body, it is setting up and down and series connection that the heat exchange tube assemblies include at least two
Set of heat exchange tubes, each set of heat exchange tubes includes multiple horizontally arranged and series connection heat exchange straight tube, in the two neighboring set of heat exchange tubes
The top of the underlying set of heat exchange tubes is higher than the bottom of the set of heat exchange tubes being located above.
Wherein, the heat exchange tube assemblies include the 2m+1 set of heat exchange tubes being distributed up and down, and odd number from top to bottom changes
Heat pipe heat includes n heat exchange straight tube, and even number set of heat exchange tubes includes n-1 heat exchange straight tube, and wherein m is whole more than or equal to 1
Number, n are the integer more than or equal to 3.
Wherein, the cross section of the heat exchange straight tube is oval, long axis direction and the heat exchanger of the ellipse
The short transverse of housing is consistent.
Wherein, the heat exchange tube assemblies further include heat exchange fin, and the heat exchange straight tube is threaded through on the heat exchange fin.
The quantity of the heat exchange fin is multiple.
Wherein, connect positioned at the set of heat exchange tubes of bottom with feed pipe, positioned at the top the set of heat exchange tubes with
Outlet pipe connects.
Wherein, the heat exchanger shell and heat exchange tube assemblies are made of anticorrosion material.
The present invention also provides a kind of gas heaters, and including combustion chamber and heat exchanger, the heat exchanger is located at institute
It states above combustion chamber, the combustion chamber includes burning chamber shell and is used to heat the heat exchange in the combustion chamber shell body
The burner of device, the heat exchanger use heat exchanger as described above.
Wherein, annular heat plate is provided between the burning chamber shell and the burner.
Wherein, the burning chamber shell includes front side board connected in sequence, left plate, back side panel and right plate, the ring
Shape thermal insulation board include preceding thermal insulation board spaced with the front side board, with the spaced left thermal insulation board of the left plate, with
The back side panel it is spaced after thermal insulation board and with the spaced right thermal insulation board of the right plate.
Wherein, the rear thermal insulation board and the left thermal insulation board, the right thermal insulation board are an integral structure.
(3) advantageous effect
Gas heater and its heat exchanger provided by the present invention include heat exchanger shell and positioned at heat exchangers
Heat exchange tube assemblies in housing, wherein heat exchange tube assemblies include at least two setting up and down and series connection set of heat exchange tubes, Mei Gehuan
Heat pipe heat includes multiple horizontally arranged and series connection heat exchange straight tube, by by heat exchange underlying in two neighboring set of heat exchange tubes
The top of pipe group is higher than the bottom of set of heat exchange tubes being located above, and to reduce the height of heat exchanger, reduces production cost.This
Outside, the device heat exchange efficiency is high, and heat loss is few and simple in structure.
Further, on the basis of the distance of the bottom at the top and combustion chamber that ensure heat exchanger is constant, due to heat
The height reduced thus increase combustion chamber of the height of exchanger, and by setting annular heat plate in combustion chamber shell body, with
Air duct is formed between annular heat plate and burning chamber shell, further realizes heat insulation, so as to cancel or significantly less disk
The water inlet coil pipe of heat exchanger is wound on, to reduce material utilization amount, further reduces production cost.
In addition, heat exchanger shell and heat exchange tube assemblies are made of anticorrosion material, to improve the resistance to of heat exchanger
Corrosive nature.
Description of the drawings
Fig. 1 is a kind of structure diagram of a preferred embodiment of heat exchanger of the present invention.
Fig. 2 is the schematic cross-sectional view of the heat exchanger in Fig. 1.
Fig. 3 is the left view schematic diagram of the heat exchanger in Fig. 1.
Fig. 4 is the schematic rear view of the heat exchanger in Fig. 1.
Fig. 5 is that the right side of the heat exchanger in Fig. 1 regards schematic diagram.
Fig. 6 is a kind of structure diagram of a preferred embodiment of the combustion chamber of gas heater of the present invention.
Fig. 7 is the exploded perspective view of the combustion chamber in Fig. 6.
Fig. 8 is the structure diagram of the front side board of the burning chamber shell in Fig. 6.
Fig. 9 is the structure diagram of the preceding thermal insulation board of the heat-proof device in Fig. 6.
Structure diagrams of the Figure 10 for the rear thermal insulation board of the heat-proof device in Fig. 6, left thermal insulation board and right thermal insulation board.
Schematic top plan views of the Figure 11 for the rear thermal insulation board of the heat-proof device in Figure 10, left thermal insulation board and right thermal insulation board.
Figure 12 is the structure diagram of the burning chamber shell in Fig. 6.
Figure 13 is the schematic top plan view of the burning chamber shell in Figure 12.
In figure, 1：Heat exchanger shell；1-1：Front mounting plate；1-2：Right side orifice plate；1-3：Installing plate afterwards；1-4：Left hole
Plate；1-5：Water inlet；1-6：Water outlet；2：Heat exchange tube assemblies；2-1：Exchange heat straight tube；2-2；Radiating fin；3：Burning chamber shell；
3-1：Front side board；3-2：Left plate；3-3：Back side panel；3-4：Right plate；3-5：Bottom plate；3-6：Upper flange；3-7：First sees fire
Hole；4：Heat-proof device；4-1：Preceding thermal insulation board；4-2：Left thermal insulation board；4-3：Thermal insulation board afterwards；4-4：Right thermal insulation board；4-5：Second sees
Fire hole；5：Front side board screw hole；6：First row screw locating flange；7：Second row screw locating flange；8：First row screw hole；
9：Second row screw hole；10：Cross-brace pawl.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the present invention is described in further detail.Following instance
For illustrating the present invention, but it is not limited to the scope of the present invention.
In the description of the present invention, it is to be understood that the orientation or position of the instructions such as term "front", "rear", "left", "right"
Put relationship be based on orientation shown in the drawings or position relationship, be for only for ease of the description present invention and simplify description rather than
Indicate or imply that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore cannot
It is interpreted as limitation of the present invention.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, " multiple " are meant that at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；It can be direct phase
Even, it can also be indirectly connected by intermediary, can be that connection inside two elements or the interaction of two elements are closed
System, unless otherwise restricted clearly.For the ordinary skill in the art, above-mentioned art can be understood as the case may be
The concrete meaning of language in the present invention.
Fig. 1 to Fig. 5 shows an a kind of preferred embodiment of heat exchanger according to the present invention.As shown in the figure, the heat
Exchanger includes being used to be mounted on the heat exchanger shell 1 above combustion chamber and the heat exchanger tube in heat exchanger shell 1
Component 2.Wherein, heat exchanger shell 1 includes front mounting plate 1-1 connected in sequence, left side orifice plate 1-4, rear installing plate 1-3 and the right side
Side opening plate 1-2.Heat exchange tube assemblies 2 include three setting up and down and series connection set of heat exchange tubes, and each set of heat exchange tubes includes multiple water
Flat raft arranges and the heat exchange straight tube 2-1 of series connection, the heat exchange straight tube 2-1 of underlying set of heat exchange tubes in two neighboring set of heat exchange tubes
Top is higher than the bottom of the heat exchange straight tube 2-1 for the set of heat exchange tubes being located above.Heat exchanger provided by the present invention is by by phase
The top of underlying set of heat exchange tubes is higher than the bottom for the set of heat exchange tubes being located above (below i.e. in adjacent two set of heat exchange tubes
The heat exchange straight tube 2-1 cross-distributions of the set of heat exchange tubes of heat exchange straight tube 2-1 and top in set of heat exchange tubes), to reduce heat exchanger
Height, reduce production cost.In addition, the device heat exchange efficiency is high, heat loss is few and simple in structure.
Specifically, include 3 heat exchange straight tube 2-1 positioned at the set of heat exchange tubes of the top, include 2 positioned at intermediate set of heat exchange tubes
Root heat exchange straight tube 2-1 includes 3 heat exchange straight tube 2-1 positioned at the set of heat exchange tubes of bottom.The water inlet of the set of heat exchange tubes of bottom
1-5 is located on the orifice plate 1-4 of left side, and for being connect with water inlet pipe, the water outlet 1-6 positioned at the set of heat exchange tubes of the top is located at right side
On orifice plate 1-2, for being connect with outlet pipe, the inlet and outlet positioned at intermediate set of heat exchange tubes are changed respectively with bottom
Heat pipe heat is connected with the set of heat exchange tubes of the top by bridge piece, so as to form entire water passage.
It should be noted that, although in this embodiment, show institute in three set of heat exchange tubes and each set of heat exchange tubes
Comprising heat exchange straight tube 2-1 particular number, however it will be understood by those of skill in the art that the present invention some other reality
It applies in example, set of heat exchange tubes may be set to be 2 or 4,5 etc..In addition, the number for the straight tube 2-1 that exchanges heat in each set of heat exchange tubes
Other numerical value can also be used by measuring, such as the set of heat exchange tubes positioned at the top includes root heat exchange straight tube 2-1, positioned at intermediate heat exchange
Pipe group includes 3 or 5 heat exchange straight tube 2-1, includes 4 heat exchange straight tube 2-1 positioned at the set of heat exchange tubes of bottom.
In order to further reduce the cost and ensure heat transfer effect, preferably heat exchange tube assemblies include changing for a distributions up and down of 2m+1
Heat pipe heat, odd number set of heat exchange tubes from top to bottom include n heat exchange straight tube 2-1, and even number set of heat exchange tubes includes n-1
Exchange heat straight tube 2-1, and wherein m is the integer more than or equal to 1, and n is the integer more than or equal to 3.
In this embodiment, the cross section of heat exchange straight tube 2-1 is oval, and the long axis direction and heat exchanger of ellipse
Short transverse it is consistent, in order to the heat exchange straight tube 2-1 in underlying set of heat exchange tubes in two neighboring set of heat exchange tubes and position
Intersect, and then further shorten the height of heat exchange tube assemblies and can ensure to change in the heat exchange straight tube 2-1 of the set of heat exchange tubes of top
Thermal effect.
In addition, the heat exchange tube assemblies further include the heat exchange fin 2-2 being arranged in heat exchanger shell 1, wherein, heat exchange is straight
Pipe 2-1 is threaded through respectively on heat exchange fin 2-2.For example, heat exchange fin 2-2 can by welding (such as soldering) with changing
Hot straight tube 2-1 connections.It is preferred that the quantity of heat exchange fin 2-2 is multiple.During work, by water inlet pipe to heat exchange tube assemblies water flowing,
High-temperature flue gas enters after heat exchanger transfers heat to heat exchange straight tube 2-1 by the heat convection between heat exchange fin 2-2
In, finally exchange heat the cold water that straight tube is transferred heat to again by heat convection in pipe, and the water after heating is discharged by outlet pipe.
In some other embodiment of the present invention, heat exchanger shell 1 and heat exchange tube assemblies 2 use anticorrosion material
It is made.Such as stainless steel, to avoid water quality it is poor when, the corrosion to heat exchanger.
The invention also discloses a kind of gas heaters, and including combustion chamber and heat exchanger as described above, which hands over
Parallel operation is located above combustion chamber, and wherein combustion chamber includes burning chamber shell 3 and is used to heat heat exchange in burning chamber shell 3
The burner of device.The technique effect phase of technique effect possessed by gas heater provided by the present invention and above-mentioned heat exchanger
It is corresponding, in order to avoid unnecessary repetition, it will not be described in great detail herein.
As shown in Figure 6 and Figure 7, annular heat plate 4 is provided between burning chamber shell 3 and burner, in annular heat
Air duct is formed between plate 4 and burning chamber shell 3, for ventilating air, further to realize heat insulation, so as to improve the combustion heat
The harm of radiation.In addition, the gas heater can be removed by increasing annular heat plate 4 in the combustion chamber or greatly reduce biography
The water inlet coil pipe united for the multiple-turns wound that cools down to heat exchanger cavities on heat-exchanger surface, do not influence it is pre- to intaking
The material utilization amount of water inlet pipe is reduced in the case of heat, further reduces production cost.
Specifically, the preceding thermal insulation board 4-1 and front side board 3-1 of annular heat plate 4 be arranged in parallel, left thermal insulation board 4-2 and left side
Plate 3-2, which is arranged in parallel, rear thermal insulation board 4-3 and back side panel 3-3 are arranged in parallel and right thermal insulation board 4-4 is parallel with right plate 3-4 sets
It puts, wherein preceding thermal insulation board 4-1, left thermal insulation board 4-2, rear thermal insulation board 4-3 and right thermal insulation board 4-4, which are sequentially connected with, constructs rectangular ring
Shape structure, in order to be mounted in burning chamber shell 3 when, are compact-sized, and manufacture craft is simple, low manufacture cost.
In this embodiment, rear thermal insulation board 4-3 and left thermal insulation board 4-2, right thermal insulation board 4-4 are an integral structure, such as logical
Cross punching press one-pass molding.The annular heat plate 4 by using the rear thermal insulation board 4-3 of integral structure, left thermal insulation board 4-2 and it is right every
Hot plate 4-4 so that manufacturing process is easy, effectively improves the life of rear thermal insulation board 4-3, left thermal insulation board 4-2 and right thermal insulation board 4-4
Efficiency and installation effectiveness are produced, meanwhile, also conducive to the overall structure stability of annular heat plate 4, conducive to its service life is extended.
In this embodiment, multiple screw holes are provided on preceding thermal insulation board 4-1, to pass through the screw hole and combustion by screw
The connection of indoor burner arm is burnt, and should ensure that between the plane where preceding thermal insulation board 4-1 and the plane where front side board 3-1
Distance for 1.5~5mm, to form the channel flowed in it for cold air, so as to cool down combustion chamber front face, make temperature control
It makes in the reasonable scope, and easy to disassemble.
In addition, being provided with screw hole on back side panel 3-3, rear thermal insulation board 4-3, which is provided with screw corresponding with the screw hole, to be determined
Position flange, after rear thermal insulation board 4-3 to be fixed on across the screw hole on back side panel 3-3 and screw locating flange by screw
On side plate 3-3, and it should ensure that the distance between the plane where rear thermal insulation board 4-3 and the plane where back side panel 3-3 for 4-
6mm to form the channel flowed in it for cold air, so as to cool down combustion chamber rear surface, makes temperature control in zone of reasonableness
It is interior.Since rear thermal insulation board 4-3 and left thermal insulation board 4-2, right thermal insulation board 4-4 are an integral structure, left thermal insulation board 4-2 and the right side
Thermal insulation board 4-4 is linked together by the connection of rear thermal insulation board 4-3 and back side panel 3-3 with burning chamber shell 1.In the embodiment
In, in order to ensure the reliability of connection, two rows of screw locating flanges are provided on preferably rear thermal insulation board 4-3：First row screw is determined
Position flange 6 and second row screw locating flange 7 (as shown in figure 11) is provided with two rows of screw holes on back side panel 3-3：First row spiral shell
Nail hole 8 and second row screw hole 9 (as shown in figure 12), wherein, first on first row screw locating flange 6 and back side panel 3-3
Row's screw hole 8, which corresponds and passes through screw, to be fastenedly connected；Second row on second row screw locating flange 6 and back side panel 3-3
Screw hole 9 is fastenedly connected by screw, in order to dismantle, and it is easy for installation.
It should be noted that it will be understood by those of skill in the art that in some other embodiment of the present invention, also may be used
Rear thermal insulation board 4-3 to be connected with back side panel 3-3 by other connectors, such as double threaded screw etc..It is it is equally possible that logical
It crosses other connectors to connect preceding thermal insulation board 4-1 with front side board 3-1, such as double threaded screw etc..
Further, as shown in Figure 10 and Figure 11, it is provided on left thermal insulation board 4-2 positioned at left thermal insulation board 4-2 and left plate
Cross-brace pawl 10 between 3-2, to ensure to protect between the plane where left thermal insulation board 4-2 and the plane where left plate 3-2
Certain distance is held, preferably the distance is 4-6mm, so as to make cold air in the gap between left thermal insulation board 4-2 and left plate 3-2
It circulates to cool down combustion chamber left wall face, makes temperature control in the reasonable scope.It is preferred that multiple laterally branch are set on left thermal insulation board 4-2
Support claw 10, and this multiple cross-brace pawl 10 is respectively positioned at the surrounding of left thermal insulation board 4-2 and center.Similarly, right thermal insulation board 4-4
On be also equipped with cross-brace pawl 10 between right thermal insulation board 4-4 and right plate 3-4, where ensureing right thermal insulation board 4-4
Plane and right plate 3-4 where plane between keep certain distance, preferably the distance be 4-6mm, so as to which cold air be made to exist
It circulates to cool down combustion chamber right wall in gap between right thermal insulation board 4-4 and right plate 3-4, makes temperature control in zone of reasonableness
It is interior.Although multiple cross-brace pawls 10, and this multiple transverse direction in this embodiment, can also be set on preferably right thermal insulation board 4-4
Support claw 10 is respectively positioned at the surrounding of right thermal insulation board 4-4 and center.Furthermore, it is necessary to explanation, cross-brace pawl 10 can also
It is arranged on left plate 3-2 and right plate 3-4.
It is preferred that preceding thermal insulation board 4-1, left thermal insulation board 4-2, rear thermal insulation board 4-3 and right thermal insulation board 4-4 are using with reflection work(
The anti-burning material of energy is made, such as mirror face stainless steel, and the reflecting surface of the mirror face stainless steel thus may be used towards combustion chamber
Combustion chamber is reflected back with a large amount of radiations heat energies for generating in burning, the radiations heat energy that wall surface receives is reduced, further to reduce
The temperature of combustion chamber wall surface.
For the ease of understanding the indoor flame conditions of burning, be provided with the first flame-observing hole 3-7 on front side board 3-1, it is preceding every
Be provided on hot plate 4-1 with the corresponding second flame-observing hole 4-5 of the first flame-observing hole 3-7, to pass through the first flame-observing hole 3-7 and second
The indoor flame conditions of flame-observing hole 4-5 observation burnings, as shown in Figure 8 and Figure 9.In this embodiment, the first flame-observing hole 3-7 and phase
The quantity of corresponding second flame-observing hole 4-5 is 1, it should be noted that it will be understood by those of skill in the art that in this hair
In some other bright embodiment, the quantity of the first flame-observing hole 3-7 and corresponding second flame-observing hole 4-5 may be 2 or 2
It is a with first-class, particular number should be configured according to concrete conditions such as the sizes of combustion chamber.
Further, as shown in figs. 7 and 13, back side panel 3-3 and left plate 3-2, right plate 3-4 are an integral structure,
Such as pass through punching press one-pass molding.The burning chamber shell 3 by using integral structure back side panel 3-3, left plate 3-2 and the right side
Side plate 3-4 so that manufacturing process is easy, effectively improves the production efficiency of back side panel 3-3, left plate 3-2 and right plate 3-4
And installation effectiveness, meanwhile, also conducive to the overall structure stability of burning chamber shell 3, conducive to the service life of combustion chamber is extended.
In this embodiment, bottom plate 3-5 and side plate 3-3 is by being welded to connect, after upper flange 3-6 and back side panel 3-3 assemblings
Also by being welded to connect, to ensure the overall structure stability of burning chamber shell 3.In addition, front side board 3-1 has front side plate bolt
Hole 5, to be connect by screw with back side panel 3-3, in order to dismantle.
In conclusion gas heater provided by the present invention and its heat exchanger are by will be in two neighboring set of heat exchange tubes
The top of underlying set of heat exchange tubes is higher than the bottom of set of heat exchange tubes being located above, to reduce the height of heat exchanger, drop
Its low production causes this.In addition, on the basis of the distance of the bottom at the top and combustion chamber that ensure heat exchanger is constant, due to
The height reduced thus increase combustion chamber of the height of heat exchanger, and by setting annular heat plate in combustion chamber shell body,
To form air duct between annular heat plate 4 and burning chamber shell 3, further realize heat insulation, so as to cancel or significantly compared with
It is coiled in the water inlet coil pipe of heat exchanger less, to reduce material utilization amount, reduces production cost.In addition, heat exchanger shell 1 and changing
Heat pipe assembly 2 is made of anticorrosion material, to improve the corrosion resistance of heat exchanger.
The foregoing is merely a prefered embodiment of the invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (11)
- A kind of 1. heat exchanger, which is characterized in that changing including heat exchanger shell and in the shell heat exchanger body Heat pipe assembly, the heat exchange tube assemblies include at least two setting up and down and series connection set of heat exchange tubes, and each set of heat exchange tubes includes Multiple horizontally arranged and series connection heat exchange straight tube, the top of the underlying set of heat exchange tubes in the two neighboring set of heat exchange tubes Portion is higher than the bottom of the set of heat exchange tubes being located above.
- 2. heat exchanger according to claim 1, which is characterized in that the heat exchange tube assemblies include 2m+1 and are distributed up and down Set of heat exchange tubes, odd number set of heat exchange tubes from top to bottom includes n heat exchange straight tube, and even number set of heat exchange tubes includes n-1 A heat exchange straight tube, wherein m are the integer more than or equal to 1, and n is the integer more than or equal to 3.
- 3. heat exchanger according to claim 1, which is characterized in that the cross section of the heat exchange straight tube is oval, institute The long axis direction for stating ellipse is consistent with the short transverse of the heat exchanger shell.
- 4. heat exchanger according to claim 1, which is characterized in that the heat exchange tube assemblies further include heat exchange fin, institute Heat exchange straight tube is stated to be threaded through on the heat exchange fin.
- 5. heat exchanger according to claim 4, which is characterized in that the quantity of the heat exchange fin is multiple.
- 6. heat exchanger according to claim 1, which is characterized in that positioned at the set of heat exchange tubes and feed pipe of bottom Connection, the set of heat exchange tubes positioned at the top are connect with outlet pipe.
- 7. according to the heat exchanger described in any one of claim 1-6, which is characterized in that the heat exchanger shell and change Heat pipe assembly is made of anticorrosion material.
- 8. a kind of gas heater, including combustion chamber and heat exchanger, the heat exchanger is located above the combustion chamber, described Combustion chamber includes burning chamber shell and is used to heat the burner of the heat exchanger, feature in the combustion chamber shell body It is, the heat exchanger is using the heat exchanger as described in any one of claim 1-7.
- 9. gas heater according to claim 8, which is characterized in that between the burning chamber shell and the burner It is provided with annular heat plate.
- 10. gas heater according to claim 9, which is characterized in that the burning chamber shell includes connected in sequence Front side board, left plate, back side panel and right plate, the annular heat plate include spaced preceding heat-insulated with the front side board Plate, with the spaced left thermal insulation board of the left plate, with the back side panel it is spaced after thermal insulation board and with the right side The spaced right thermal insulation board of side plate.
- 11. gas heater according to claim 10, which is characterized in that thermal insulation board and the left thermal insulation board after described, The right thermal insulation board is an integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810141786.7A CN108168075A (en) | 2018-02-11 | 2018-02-11 | Gas heater and its heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810141786.7A CN108168075A (en) | 2018-02-11 | 2018-02-11 | Gas heater and its heat exchanger |
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| Publication Number | Publication Date |
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| CN108168075A true CN108168075A (en) | 2018-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810141786.7A Pending CN108168075A (en) | 2018-02-11 | 2018-02-11 | Gas heater and its heat exchanger |
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