CN206626793U - Gas water-heating furnace and its heat exchanger - Google Patents
Gas water-heating furnace and its heat exchanger Download PDFInfo
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- CN206626793U CN206626793U CN201720096688.7U CN201720096688U CN206626793U CN 206626793 U CN206626793 U CN 206626793U CN 201720096688 U CN201720096688 U CN 201720096688U CN 206626793 U CN206626793 U CN 206626793U
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- heating furnace
- heat exchanger
- helical duct
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Abstract
It the utility model is related to a kind of gas water-heating furnace and its heat exchanger, including housing, water supply connector and water out adapter located at housing, and the coil pack in housing, coil pack is provided with least two separate helical ducts, the water inlet of helical duct connects with the water supply connector, the delivery port of helical duct connects with water out adapter, helical duct is axially distributed in the shape of a spiral, and enclose to form heat exchanging chamber jointly, the first thermal insulation board is provided with heat exchanging chamber, heat exchanging chamber is separated to form the one-level heat transfer zone and secondary heat exchange area being arranged side by side along its axis by the first thermal insulation board, and the water inlet of helical duct is located at one-level heat transfer zone side, the delivery port of helical duct is located at the side in secondary heat exchange area.Heating water enters coil pack by least two helical ducts simultaneously, and when one of helical duct blocks, heating water can also take away heat by other helical ducts, the risk for preventing heat exchanger from burning out or exploding, have a safety feature.
Description
Technical field
Technical field of heat exchange is the utility model is related to, more particularly to a kind of gas water-heating furnace and its heat exchanger.
Background technology
The heat exchanger structure of existing condensation-type gas-fired heating water heater typically uses pipe disk into the appropriate spiral of diameter
Shape, according to the size of different water heater design powers, helix tube is increased to different quantity of spiraling, will so as to reach increase power
Ask.But the heat exchanger of condensation-type gas-fired heating water heater is during heating, heating water is due at high temperature (60 DEG C -80 for a long time
DEG C), in pipe easily fouling, easily block, the localized hyperthermia of heat exchanger, the risk for causing heat exchanger to burn out or explode, poor safety performance.
Utility model content
The purpose of this utility model is to provide a kind of gas water-heating furnace and its heat exchanger, can prevent heat exchanger from going out current situation
Portion's high temperature has a safety feature so as to cause the risk that heat exchanger burns out or exploded.
To realize the purpose of this utility model, adopt the technical scheme that：
A kind of gas water-heating furnace heat exchanger, including housing, the water supply connector located at housing and water out adapter and positioned at housing
Interior coil pack, coil pack are provided with least two separate helical ducts, the water inlet of helical duct with it is described enter
Water swivel connects, and the delivery port of helical duct connects with water out adapter, and helical duct is axially distributed and enclosed jointly in the shape of a spiral
Conjunction forms heat exchanging chamber, is provided with the first thermal insulation board in heat exchanging chamber, heat exchanging chamber is separated to form along its axis and arranged by the first thermal insulation board
The one-level heat transfer zone and secondary heat exchange area put, and the water inlet of helical duct is located at one-level heat transfer zone side, helical duct goes out
The mouth of a river is located at the side in secondary heat exchange area.
During work, high-temperature flue gas is introduced into one-level heat transfer zone, and flue gas radially washes away disk from the center of coil pack
Pipe, then again from coil pack radially outside to centre punch brush pipe, into secondary heat exchange area；Heating water is from each spiral
The water inlet of passage enters coil pack, and heating water carries out heat exchange with the high-temperature flue gas in secondary heat exchange area first, afterwards again with
The high-temperature flue gas of one-level heat transfer zone carries out heat exchange, is finally flowed out from the delivery port of helical duct, completes the overall process of heat exchange.
Heating water enters coil pack by least two helical ducts simultaneously, when one of helical duct blocks, heating
Water can also take away heat by other helical ducts, prevent heat exchanger from localized hyperthermia occur so as to cause heat exchanger to burn out
Or the risk of blast, have a safety feature；And in aspect of performance, the coil pack provided with least two helical ducts is, it is necessary to exchange
In the case of same heat, the contraction in length of helical duct, the heating resistance of complete machine is reduced, flow velocity is improved, is changed so as to improve
The thermal efficiency.
Technical scheme is further illustrated below：
It is further that coil pack includes two spiral coils, each spiral coil is provided with a helical duct.Have
Twin-channel coil pack, compared with single pass coil pack, the heating resistance of complete machine is reduced, flow velocity is improved, so as to improve
Heat exchange efficiency.
It is further that spiral coil is stainless steel.Prevent spiral coil from getting rusty, extend spiral coil uses the longevity
Life.
It is further that spiral coil cross section is in oblateness.
It is further that the bottom of housing is provided with condensate water discharging mouth.By condensate water discharging mouth by high-temperature flue gas because of temperature
Degree caused condensed water after reducing, prevents condensed water to be trapped in housing.
It is further that the inwall of housing is equipped with the second thermal insulation board.Make the effect of heat insulation of housing more preferable.
The utility model also provides a kind of gas water-heating furnace, including burner and above-mentioned gas water-heating furnace heat exchanger, combustion
Burner is provided with the high-temperature flue gas outlet in one-level heat transfer zone, and housing goes out towards the side in secondary heat exchange area provided with low-temperature flue gas
Mouthful.Enter the one-level heat transfer zone of coil pack by high-temperature flue gas outlet in high-temperature flue gas caused by burner, there is above-mentioned change
The gas water-heating furnace of hot device prevents heat exchanger from localized hyperthermia occur so as to cause the risk that heat exchanger burns out or exploded, security performance
It is good.
It is further that gas water-heating furnace also includes being used for by the premix chamber of air and combustion gas mixing and by air and combustion
Pneumatic transmission enters the blower fan of premix chamber, and the air inlet of burner connects with premix chamber.A certain proportion of air and combustion gas are sent into by blower fan
Burnt after premix chamber, air and combustion gas mixing into burner, so as to produce substantial amounts of high-temperature flue gas.
It is further that gas water-heating furnace also includes the venturi valve being connected with blower fan, venturi valve connects with gas pipeline
Lead to and be provided with air inlet.The air and gas flow into blower fan are accurately measured by venturi valve, makes air and combustion gas
Premixing effect it is more preferable.
It is further that water outlet mouthpiece is connected with heating water outlet box, water inlet connection heating backwater box.
Compared with prior art, the utility model has the advantages that：
At work, high-temperature flue gas is introduced into one-level heat transfer zone to the utility model, and flue gas is from coil pack centrally along footpath
To outwards coil pipe is washed away, then again from coil pack radially outside to centre punch brush pipe, into secondary heat exchange area；Heating
Water enters coil pack from the water inlet of each helical duct, and heating water carries out hot friendship with the high-temperature flue gas in secondary heat exchange area first
Change, the high-temperature flue gas again with one-level heat transfer zone carries out heat exchange afterwards, is finally flowed out from the delivery port of helical duct, completes heat and hands over
The overall process changed.Heating water enters coil pack by least two helical ducts simultaneously, when one of helical duct occurs
During blocking, heating water can also take away heat by other helical ducts, prevent heat exchanger from localized hyperthermia occur so as to make
The risk for burning out or exploding into heat exchanger, has a safety feature；And in aspect of performance, the coil pipe group provided with least two helical ducts
In the case that part is, it is necessary to exchange same heat, the contraction in length of helical duct, the heating resistance of complete machine is reduced, improves flow velocity,
So as to improve heat exchange efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment gas water-heating furnace；
Fig. 2 is the flue gas flow direction figure of the utility model embodiment gas water-heating furnace；
Fig. 3 is the heating water flow graph of the utility model embodiment gas water-heating furnace.
Description of reference numerals：
10. burner, 20. heat exchangers, 210. housings, the outlet of 211. low-temperature flue gas, 212. case top lids, 213. condensed waters
Discharge outlet, 214. exhaust smoke outlets, 220. backwater box joints, 230. water outlet box joints, 240. coil packs, 241. helical ducts,
242. one-level heat transfer zones, 243. secondary heat exchange areas, 244. spiral coils, 250. first thermal insulation boards, 260. flue gas flow aprons,
270. second thermal insulation boards, 30. premix chambers, 40. blower fans, 50. venturi valves, 510. air inlets, 60. gas pipelines.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings：
As shown in Figure 1 to Figure 3, a kind of gas water-heating furnace, including burner 10 and gas water-heating furnace heat exchanger 20, the combustion gas
Water heater heat exchanger 20 includes housing 210, backwater box joint 220 and water outlet box joint 230 located at housing 210 and positioned at shell
Coil pack 240 in body 210, coil pack 240 are provided with least two separate helical ducts 241, and each spiral leads to
The water inlet in road 241 connects with backwater box joint 220, and the delivery port of each helical duct 241 connects with water outlet box joint 230
Logical, helical duct 241 is axially distributed and encloses to form heat exchanging chamber jointly in the shape of a spiral, and the first thermal insulation board is provided with heat exchanging chamber
250, heat exchanging chamber is separated to form the one-level heat transfer zone 242 and secondary heat exchange area 243 arranged up and down, and spiral shell by the first thermal insulation board 250
The water inlet of rotation passage 241 is located at the side of one-level heat transfer zone 242, and the delivery port of helical duct 241 is located at secondary heat exchange area 243
Side, burner 10 are provided with the high-temperature flue gas outlet in the one-level heat transfer zone 242, and housing 210 is towards secondary heat exchange area 243
Side is provided with low-temperature flue gas outlet 211.
During work, high-temperature flue gas is introduced into the one-level of coil pack 240 by high-temperature flue gas outlet caused by burner 10
Heat transfer zone 242, flue gas radially wash away coil pipe from the center of coil pack 240, then again from the outside of coil pack 240
Radially to centre punch brush pipe, into secondary heat exchange area 243；Heating water enters disk from the water inlet of each helical duct 241
Tube assembly 240, heating water carry out heat exchange with the high-temperature flue gas in secondary heat exchange area 243 first, afterwards again with one-level heat transfer zone 242
High-temperature flue gas carry out heat exchange, finally flowed out from the delivery port of helical duct 241, complete the overall process of heat exchange.Heating water
Enter coil pack 240 by least two helical ducts 241 simultaneously, when one of helical duct 241 blocks, adopt
Warm water can also take away heat by other helical ducts 241, prevent heat exchanger 20 from localized hyperthermia occur so as to cause to change
The risk that hot device 20 burns out or exploded, has a safety feature；And in aspect of performance, the coil pipe provided with least two helical ducts 241
In the case that component 240 is, it is necessary to exchange same heat, the contraction in length of helical duct 241, the heating resistance of complete machine is reduced,
Flow velocity is improved, so as to improve heat exchange efficiency.
As shown in Figures 2 and 3, coil pack 240 includes two independent spiral coil pipes 244, and two spiral coils 244 are mutual
The coil pack 240 is wound, each spiral coil 244 is provided with a helical duct 241.With twin-channel coil pack
240, compared with single pass coil pack 240, the heating resistance of complete machine is reduced, flow velocity is improved, so as to improve heat exchange efficiency.Disk
Tube assembly 240 can also set more than two spiral coils 244 according to being actually needed, and can also be arranged to according to being actually needed
One spiral coil with least two helical ducts 241.
In the present embodiment, for the cross section of spiral coil 244 in oblateness, spiral coil 244 is stainless steel.Prevent spiral shell
Capstan pipe 244 gets rusty, and extends the service life of spiral coil 244.Spiral coil 244 can also be according to being actually needed using other
Shape, can also be according to being actually needed using other materials.
As depicted in figs. 1 and 2, the heat exchanger 20 also case top lid 212 and flue gas flow apron 260, the He of case top lid 212
Seal and be bolted by silica gel pad between flue gas flow apron 260, flue gas flow apron 260 by screw and
Button bit is connected with housing 210.The lower bottom part of housing 210 is provided with condensate water discharging mouth 213, by condensate water discharging mouth 213 by height
For warm flue gas because of condensed water caused by temperature reduction later, it is exhaust smoke outlet to prevent that condensed water is trapped in upper bottom portion in housing 210
214；The upper bottom portion of housing 210 is provided with exhaust smoke outlet 214, and exhaust smoke outlet 214 connects with low-temperature flue gas outlet 211.And housing 210
Inwall be equipped with the second thermal insulation board 270, make the effect of heat insulation of housing 210 more preferable.
As shown in Figure 1 to Figure 3, gas water-heating furnace also includes being used for by air and the premix chamber of combustion gas mixing 30 and by sky
The blower fan 40 of premix chamber 30 is sent into gas and combustion gas, and the air inlet of burner 10 connects with premix chamber 30.Blower fan 40 is by certain proportion
Air and combustion gas be sent into premix chamber 30, burnt into burner 10 after air and combustion gas mixing, so as to produce largely
High-temperature flue gas.
As shown in figure 3, gas water-heating furnace also includes the venturi valve 50 being connected with blower fan 40, venturi valve 50 and Gas Pipe
Road 60 connects and is provided with air inlet 510.The air and combustion gas stream into blower fan 40 are accurately measured by venturi valve 50
Amount, makes the premixing effect of air and combustion gas more preferable.
The heat exchanger 20 is largely divided into one-level heat transfer zone 242 (combustion zone) and secondary heat exchange area 243 (condensing zone), has combustion
The gas/air mixing ratio of the fully-premixed gas burner of burner 10 and premix chamber 30 is kept automatically in load regulation range
It is constant, substantial amounts of high-temperature flue gas is produced in burner 10, the flue gas of high temperature is up to 900 DEG C, and the flue gas of high temperature is in stainless steel disc
Flow between pipe, exchanged heat with heating water, heat exchanger 20 is divided for one-level heat transfer zone 242 and secondary heat exchange by the second thermal insulation board 270
Area 243, in one-level heat exchange, flue gas radially washes away coil pipe from center；In secondary heat exchange, flue gas is from spiral coil 244
Radially outside to centre punch brush pipe.Flue-gas temperature is reduced to 50 DEG C, so as to complete entirely changing between flue gas and heating water
Thermal process.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of gas water-heating furnace heat exchanger, it is characterised in that water supply connector and water outlet including housing, located at the housing connect
Head and the coil pack in the housing, the coil pack is provided with least two separate helical ducts, described
The water inlet of helical duct connects with the water supply connector, and the delivery port of the helical duct connects with the water out adapter,
The helical duct is axially distributed and encloses to form heat exchanging chamber jointly in the shape of a spiral, and it is heat-insulated that first is provided with the heat exchanging chamber
The heat exchanging chamber is separated to form the one-level heat transfer zone being arranged side by side along its axis and secondary heat exchange by plate, first thermal insulation board
Area, and the water inlet of the helical duct is located at one-level heat transfer zone side, the delivery port of the helical duct is positioned at described
The side in secondary heat exchange area.
2. gas water-heating furnace heat exchanger according to claim 1, it is characterised in that the coil pack includes two spirals
Coil pipe, each spiral coil are provided with a helical duct.
3. gas water-heating furnace heat exchanger according to claim 2, it is characterised in that the spiral coil is stainless steel
Matter.
4. gas water-heating furnace heat exchanger according to claim 2, it is characterised in that the spiral coil cross section is in oblate
Shape.
5. the gas water-heating furnace heat exchanger according to any one of Claims 1-4, it is characterised in that the bottom of the housing
Provided with condensate water discharging mouth.
6. the gas water-heating furnace heat exchanger according to any one of Claims 1-4, it is characterised in that the inwall of the housing
It is equipped with the second thermal insulation board.
7. a kind of gas water-heating furnace, it is characterised in that including the gas and hot water described in burner and any one of claim 1 to 6
Stove heat exchanger, the burner are provided with the high-temperature flue gas outlet in the one-level heat transfer zone, and the housing is towards described two
The side of level heat transfer zone exports provided with low-temperature flue gas.
8. gas water-heating furnace according to claim 7, it is characterised in that also include being used for the pre- of air and combustion gas mixing
Mixed chamber and the blower fan that air and combustion gas are sent into the premix chamber, the air inlet of the burner connect with the premix chamber.
9. gas water-heating furnace according to claim 8, it is characterised in that also include the venturi being connected with the blower fan
Valve, the venturi valve connect with gas pipeline and are provided with air inlet.
10. according to the gas water-heating furnace described in any one of claim 7 to 9, it is characterised in that the water outlet mouthpiece, which is connected with, to be adopted
Warm water outlet box, the water inlet connect heating backwater box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720096688.7U CN206626793U (en) | 2017-01-24 | 2017-01-24 | Gas water-heating furnace and its heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720096688.7U CN206626793U (en) | 2017-01-24 | 2017-01-24 | Gas water-heating furnace and its heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206626793U true CN206626793U (en) | 2017-11-10 |
Family
ID=60213878
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720096688.7U Active CN206626793U (en) | 2017-01-24 | 2017-01-24 | Gas water-heating furnace and its heat exchanger |
Country Status (1)
| Country | Link |
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| CN (1) | CN206626793U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405272A (en) * | 2018-11-15 | 2019-03-01 | 中山市思源电器有限公司 | A kind of cylindrical heat exchanger of high heat exchange efficiency |
-
2017
- 2017-01-24 CN CN201720096688.7U patent/CN206626793U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405272A (en) * | 2018-11-15 | 2019-03-01 | 中山市思源电器有限公司 | A kind of cylindrical heat exchanger of high heat exchange efficiency |
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