CN207471820U - Gas-fired water heater and its heat exchanger - Google Patents
Gas-fired water heater and its heat exchanger Download PDFInfo
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- CN207471820U CN207471820U CN201721494634.2U CN201721494634U CN207471820U CN 207471820 U CN207471820 U CN 207471820U CN 201721494634 U CN201721494634 U CN 201721494634U CN 207471820 U CN207471820 U CN 207471820U
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Abstract
The utility model discloses a kind of gas-fired water heater and its heat exchanger.Wherein, the gas-fired water heater includes：Stainless heat exchanger without outer coil pipe；The heat exchanger includes housing, wears heat exchanger tube on the housing；The heat exchanger tube is connected with the water supply connector of the gas-fired water heater；The burner being connected with the stainless heat exchanger；The burner has combustion chamber and burner；The wall of the combustion chamber is equipped with air-cooled channel；The gas of the air-cooled channel outflow enters in the housing.The gas-fired water heater the problem of so as to eliminate condensed water and can reduce pad, reduce processing and manufacturing difficulty, promote manufacture efficiency without setting water inlet coil pipe.
Description
Technical field
The utility model is related to gas and hot water apparatus field more particularly to a kind of gas-fired water heaters and its heat exchanger.
Background technology
Gas heater is using combustion gas as fuel, by combustion heating mode, transfers heat to and flows through heat exchanger
Cold water in, to reach a kind of gas appliance for preparing hot water purpose.The main parts size of gas heater includes burner, heat
Exchanger etc..
Existing heat exchanger for gas water heater mainly by housing, equipped with fin and the heat exchanger tube being threaded through on housing and
The set of heat exchange tubes of hull outside is disposed around into the heat exchanger tube being threaded through on housing is connected with being disposed around the heat exchanger tube of hull outside
It is logical.Wherein, the temperature of housing at corresponding position can be reduced by being disposed around the heat exchanger tube of hull outside, prevent housing mistake at this
Heat, but the presence of this part heat exchanger tube can increase resistance to water-flow, particularly, easily resistance be formed to water inlet in hydraulic pressure deficiency
Hinder.
Be susceptible to condensed water phenomenon in addition, being disposed around on the heat exchanger tube of hull outside, especially in winter low temperature when be more easy to
Generate condensation water problems.And the appearance of condensed water can largely effect on the service life of heat exchanger.Others, due to being disposed around shell
Heat exchanger tube outside body is generally installed, and higher to welding process requirement, therefore be disposed around hull outside by welding
Heat exchanger tube can increase more pad, and processing and manufacturing difficulty is larger.
Utility model content
In view of the deficiencies in the prior art, the utility model it is necessary to provide a kind of gas-fired water heater and its heat exchanger, with
One of problem above can at least be solved.
The technical solution adopted in the utility model is：
A kind of gas-fired water heater, including：
Stainless heat exchanger without outer coil pipe；The heat exchanger includes housing, wears heat exchanger tube on the housing；Institute
The water supply connector that heat exchanger tube is stated with the gas-fired water heater is connected；
The burner being connected with the stainless heat exchanger；The burner has combustion chamber and burner；
The wall of the combustion chamber is equipped with air-cooled channel；The gas of the air-cooled channel outflow enters in the housing.
Preferably, the heat exchanger tube is equipped with heat exchange fin；The housing is located at the part shell of the heat exchange fin upstream
Body is equipped with overheat protection mechanism；The overheat protection mechanism can inhibit flue gas to conduct heat to the partial shell.
Preferably, one end of the wall of one end of the housing and the combustion chamber is equipped with connecting portion；The overheating protection
Mechanism is set close to the connecting portion.
Preferably, the distance of the connecting portion to the heat exchange fin is 10-100mm.
Preferably, the Inner Wall of Combustion Chamber is equipped with partition board；Air-cooled channel is formed between partition board and inner wall.
Preferably, the overheat protection mechanism includes being set to the deflector on the inside of the partial shell；The deflector
It can be by the gas of the air-cooled channel outflow to the direction water conservancy diversion far from the housing.
Preferably, one end of the deflector is set to connecting portion, and the other end extends towards the heat exchange fin.
Preferably, the deflector has at least two connecting portions with the partial shell；At least two connecting portions
Vertically trip arrangement；The deflector is also contacted with the heat exchange fin.
Preferably, heat-insulated gap is equipped between the deflector and the inner wall of the partial shell.
Preferably, at least part deflector is bonded with the inner wall of the partial shell.
Preferably, one end of the partition board extends to the heat exchange fin；The overheat protection mechanism includes the partition board
Positioned at the part in the connecting portion downstream.
Preferably, at least one heat exchange fin is extended to contacts with the connecting portion；The overheat protection mechanism
It is located at the part of other heat exchange fin upstreams including the heat exchange fin.
A kind of gas-fired water heater heat exchanger, the heat exchanger are stainless steel；
The heat exchanger includes housing, wears heat exchanger tube on the housing；The heat exchanger tube and the gas and hot water
The water supply connector of device is connected to be not provided with outer coil pipe.
Preferably, the heat exchanger tube is equipped with heat exchange fin；The housing is located at the part shell of the heat exchange fin upstream
Body is equipped with overheat protection mechanism；The overheat protection mechanism can inhibit flue gas to conduct heat to the partial shell.
Preferably, the housing has the connecting pin that can be connected with burner；The connecting pin of the housing is to described
The distance of heat exchange fin is 10-100mm.
Preferably, the overheat protection mechanism includes being set to the deflector on the inside of the partial shell；The deflector
It can be by the gas that air-cooled channel flows out to the direction water conservancy diversion far from the housing.
Preferably, the deflector has at least two connecting portions with the partial shell；At least two connecting portions
Vertically trip arrangement；The deflector is also contacted with the heat exchange fin.
Advantageous effect：
The stainless heat exchanger of the gas-fired water heater does not need to outer coil pipe, is connected by heat exchanger tube with water supply connector
To input cool water heating.Correspondingly, the output terminal of the heat exchanger tube of the stainless heat exchanger is connected with water outlet connector with heat outputting
Water.The stainless heat exchanger be without outer coil design, in this way, water supply connector of the water through gas-fired water heater through pipeline directly into
Enter in heat exchanger tube, the water route drag losses of water can be effectively reduced.Simultaneously as the gas-fired water heater need not set external disk
Pipe (water inlet coil pipe) the problem of so as to eliminate condensed water and reduces pad, reduces processing and manufacturing difficulty, promote system
Make efficiency.
Also, to promote heat utilization ratio, while prevent the temperature of chamber wall excessively high, it will by the gas of air-cooled channel
Heat at chamber wall is brought into the housing of stainless heat exchanger, is exchanged heat again with heat exchanger tube, and thus, it is possible to promote combustion
The thermal efficiency of gas hot water apparatus.
In addition, the stainless heat exchanger of the gas-fired water heater by being equipped with overheat protection mechanism, can be effectively prevent not
The housing of rust steel heat exchanger led to the problem of cause thermal damage, meanwhile, which can match with air-cooled channel, air-cooled
The gas of channel outflow is flowed to since temperature is relatively low (less than high-temperature flue-gas in combustion chamber) so as to the gas of air-cooled channel
Can blow off high-temperature flue gas during overheat protection mechanism overheat protection mechanism, meanwhile, the temperature flowed out in air-cooled channel is relatively
Low gas can form overheat protection mechanism and cool so that the surface of overheat protection mechanism forms the relatively low cold wall of temperature
Face, therefore overheat protection mechanism can equally be inhibited to generate problems of excessive heat, prevent overheat protection mechanism from generating overheat disrepair phenomenon,
Realize double not over temperature and heats of overheat protection mechanism and stainless steel heat exchange housing, extend entire gas-fired water heater uses the longevity
Life.
With reference to following explanation and attached drawing, the particular implementation of the utility model is disclosed in detail, specifies this practicality
Novel principle can be in a manner of adopted.It should be understood that the embodiment of the utility model in range not thus by
Limitation.In the range of the spirit and terms of appended claims, the embodiment of the utility model includes many changes, modifications
With it is equivalent.
The feature for describing and/or showing for a kind of embodiment can be in a manner of same or similar one or more
Used in a other embodiment, with the feature in other embodiment it is combined or substitute other embodiment in feature.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece, step or component when being used herein, but simultaneously
It is not excluded for the presence or additional of one or more other features, one integral piece, step or component.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those skilled in the art, without having to pay creative labor,
It can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the gas-fired water heater schematic diagram that a kind of embodiment of the utility model provides；
Fig. 2 is the partial enlarged view of Fig. 1；
Fig. 3 is the gas-fired water heater schematic diagram that the utility model another embodiment provides；
Fig. 4 is the partial enlarged view of Fig. 3；
Fig. 5 is the gas-fired water heater schematic diagram that the utility model another embodiment provides；
Fig. 6 is the gas-fired water heater schematic diagram that the utility model another embodiment provides.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, the technical solution in the embodiment of the present application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
It is new should all to belong to this practicality for technical staff's all other embodiments obtained under the premise of creative work is not made
The range of type protection.
It should be noted that when element is referred to as " being set to " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
For illustrative purposes only, it is unique embodiment to be not offered as " right side " and similar statement.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to the technology of the utility model
The normally understood meaning of technical staff in domain is identical.It is only in the term used in the description of the utility model herein
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein "and/or" packet
Include the arbitrary and all combination of one or more relevant Listed Items.
It please refers to Fig.1, shown in Fig. 2, a kind of gas-fired water heater knot provided by a kind of embodiment of the utility model
Structure schematic diagram.The gas-fired water heater includes but not limited to gas heater, wall-hung boiler.In this embodiment, the combustion gas
Hot water apparatus includes：Stainless heat exchanger without outer coil pipe；The heat exchanger includes housing 1, is threaded through changing on the housing 1
Heat pipe 2；The heat exchanger tube 2 is connected with the water supply connector of the gas-fired water heater；It is connect with the stainless heat exchanger
Burner；The burner has combustion chamber and burner；The wall 5 of the combustion chamber is equipped with air-cooled channel 6；It is described
The gas that air-cooled channel 6 flows out enters in the housing 1.
Burner includes the fire row of multiple parallel arrangements, and multiple fire rows are installed in mounting base.Burner is located at combustion chamber
Interior, burner combustion forms high-temperature flue gas, and passes through high-temperature flue gas and flow to contact with heat exchanger tube 2 at heat exchanger and exchange heat,
Thus by the cool water heating in heat exchanger tube 2.
The stainless heat exchanger of the gas-fired water heater does not need to outer coil pipe, is connected by heat exchanger tube 2 with water supply connector
It connects to input cool water heating.Correspondingly, the output terminal of the heat exchanger tube 2 of the stainless heat exchanger is connected to export with water outlet connector
Hot water.The stainless heat exchanger is without outer coil design, in this way, water supply connector of the water through gas-fired water heater is direct through pipeline
Into in heat exchanger tube 2, the water route drag losses of water can be effectively reduced.Simultaneously as the gas-fired water heater is without setting
Outer coil pipe (water inlet coil pipe) the problem of so as to eliminate condensed water and reduces pad, reduces processing and manufacturing difficulty, carry
Rise manufacture efficiency.
Also, it to promote heat utilization ratio, while prevents the temperature of chamber wall excessively high, passes through the gas of air-cooled channel 6
By the heat absorption at chamber wall and enter in the housing 1 of stainless heat exchanger, exchange heat again with heat exchanger tube 2, thus
The thermal efficiency of gas-fired water heater can be promoted.
In the present embodiment, stainless heat exchanger is installed on downstream of the burner along flue gas direction, specific to implement
In example, which is installed on the top of burner vertically, in favor of the flowing of flue gas and the biography of heat
It passs.Certainly, stainless heat exchanger can not be overlying relation with burner in other embodiments, only stainless steel be needed to change
Hot device is located at downstream of the burner along flow of flue gas direction, so as to which stainless heat exchanger with high-temperature flue gas by being in contact
It exchanges heat.
The heat exchanger tube 2 is equipped with heat exchange fin 3, to promote the contact heat-exchanging area with high-temperature flue gas, improves heat exchange effect
Rate.It is stainless steel in view of the heat exchanger, partial shell 13 is not conducted heat easily with 2 contact area of heat exchanger tube by high-temperature flue gas
It generates overheat afterwards and forms cracking, to prevent the problem, the housing 1 is located at the partial shell 13 of 3 upstream of heat exchange fin
Equipped with overheat protection mechanism 8；The overheat protection mechanism 8 can inhibit flue gas to conduct heat to the partial shell 13.
It is installed on combustion chamber for ease of housing 1, is located at the heat exchange fin 3 (along flow of flue gas direction in the housing 1
) partial shell 13 of upstream do not contact directly with heat exchanger tube 2 and fin 3, still, the partial shell 13 is due to can not be direct
Heat transfer is carried out to fin 3, so as to which the heat that high-temperature flue gas passes over easily forms overheat, passes through overheat protection mechanism 8
Flue gas can be inhibited to conduct heat to the partial shell 13, the temperature for preventing the partial shell 13 is excessively high, avoids the generation of problem of Cracking,
Extend the service life of the stainless heat exchanger.
Meanwhile the overheat protection mechanism can be matched with air-cooled channel, the gas of air-cooled channel outflow due to temperature compared with
Low (less than high-temperature flue-gas in combustion chamber), can be by high temperature when flowing to overheat protection mechanism so as to the gas of air-cooled channel
Flue gas blows off overheat protection mechanism, and overheat protection mechanism can equally be inhibited to generate problems of excessive heat, prevent overheat protection mechanism from producing
Raw overheat disrepair phenomenon realizes double not over temperature and heats of overheat protection mechanism and stainless steel heat exchange housing, extends entire combustion gas
The service life of hot water apparatus.
One end of the housing 1 and one end of the wall 5 of the combustion chamber are equipped with connecting portion 4；The overheat protection mechanism 8
It is set close to the connecting portion 4.Specifically, the connecting portion 4 can be flanged joint position 4, the lower end of housing 1 (is read
When person faces Fig. 1) there is flange, the upper end of the wall 5 of combustion chamber has flange, so as to which housing 1 and combustion chamber form flange
Connection, and can prevent flue gas from escaping.The overheat protection mechanism 8 can be set close to the connecting portion 4, be prevented close to connection
The partial shell 13 at position 4 generates overheat problem of Cracking.
Wherein, the distance L of the connecting portion 4 to the heat exchange fin 3 is 10-100mm.The connecting portion 4 is to changing
The partial shell 13 of hot fin 3 is the partial shell 13 for the overheating protection of being carried out.As shown in Figure 1, in scope of readers to Fig. 1
When, the distance of connecting portion 4 and heat exchange fin 3 (minimum point) is distance vertically.
In the present embodiment, the overheat protection mechanism 8 can include being set to leading for 13 inside of partial shell
Flowing plate；The deflector can be by the gas that the air-cooled channel 6 flows out to the direction water conservancy diversion far from the housing 1.By being equipped with
Deflector forms water conservancy diversion so that described air-cooled to the gas (temperature is less than the temperature of high-temperature flue gas at this time) of air-cooled channel 6 outflow
The gas that channel 6 flows out is flowed far from the partial shell 13, at this point, the gas of the air-cooled channel 6 outflow can be to flue gas shape
Into impact so that flue gas is equally moved to far from 13 direction of partial shell, and high-temperature flue gas is inhibited to conduct heat to the partial shell 13, from
And the partial shell 13 can be effectively prevent to generate problems of excessive heat.
Meanwhile in the gas process that is flowed out in air-cooled channel 6 described in water conservancy diversion of deflector, gas that the air-cooled channel 6 flows out
Body blows off high-temperature flue gas deflector under the guiding of deflector, meanwhile, the relatively low gas of the temperature that is flowed out in air-cooled channel
Know from experience and cool to deflector formation so that baffle surface forms the relatively low cold wall face of temperature, reduces and high-temperature flue gas
Heat convection prevents deflector from generating overheat overtemperature and damaging, and so realizes to the housing of stainless heat exchanger and deflector
Bidirectional protective.
In the present embodiment, deflector can have various structures, can be straight panel, or bending plate is led
Flowing plate can be individual plates, or plurality of plates is formed, and is not made special restriction in the application, is only needed deflector can be by wind
The gas of cold passage 6 to far from partial shell 13 direction water conservancy diversion.The deflector is installed on the inside of partial shell 13, so as to first
High-temperature flue gas is contacted, and carry out heat conduction in partial shell 13.To utilize the partial heat, the utilization rate of heat, deflector are promoted
It can also at least be contacted with fin 3, thus by the heat transfer of heat-conducting plate to heat exchanger tube 2.
In one embodiment, as shown in fig. 6, one end of the deflector is set to connecting portion 4, the other end is towards institute
Heat exchange fin 3 is stated to extend.At this point, the upper end of heat-conducting plate is relative to inner wall of the lower end of heat-conducting plate far from partial shell 13.At this
In embodiment, deflector can be straight panel, or bending plate is not intended to limit in the embodiment.Deflector is set to connection
The one end at position 4 can be by being fixedly welded on present position.Deflector can connect close to one end of heat exchange fin 3 with fin 3
(for example can be contacted by the modes such as weld, be spirally connected, can also only transmission of heat by contact) be touched, can not also be contacted with heat exchange fin 3.
As a preferred embodiment, the deflector and the partial shell 13 have at least two connecting portions (10,
11), at least two connecting portions (10,11) vertically swim arrangement, and the deflector is also contacted with the heat exchange fin 3.Specifically,
As shown in Fig. 2, a connecting portion 10, close to the connecting portion 4, another connecting portion 11 is located at downstream (Fig. 2 of the connecting portion 4
In be top).
In this embodiment, deflector is adapted to the construction of partial shell 13, as shown in Figure 1 and Figure 2, partial shell 13
With a reducing step, flanged joint position 4 is located at the lower section of the reducing step, and heat exchanger tube 2 (heat exchange fin 3) is positioned at the reducing
The top of step.Correspondingly, the deflector is in bending harden structure, upper end dogleg section 12 and the heat exchange fin 3 of deflector connect
It touches to transfer heat to heat exchange fin 3, not only promotes the utilization rate of heat, moreover it is possible to prevent own temperature from crossing thermosetting cracking broken
Damage.
Further, for partial shell 13 is preferably avoided to generate problems of excessive heat, prevent deflector from transferring heat to portion
Heat-insulated gap 9 is equipped between the inner wall of housing parts 13, the deflector and the partial shell 13.By being equipped with the heat-insulated gap
9, the problem of can further reducing partial shell 13, reduces the probability that housing 1 cracks.In other embodiments, such as Fig. 1 extremely
Shown in Fig. 4, at least part deflector can be bonded with the inner wall of the partial shell 13.It is of course also possible to example as shown in Figure 5
In, deflector is connected by two connecting portions with partial shell, and is not fitted with housing.
In the present embodiment, air-cooled channel 6 is set on the wall 5 of combustion chamber and is passed through stainless heat exchanger housing 1
Inside, high-temperature flue gas can be transferred to heat absorption and the transmission of chamber wall by air-cooled channel 6, while prevent chamber wall
Temperature is excessively high.Specifically, the Inner Wall of Combustion Chamber is equipped with partition board 7；Air-cooled channel 6 is formed between partition board 7 and inner wall.Wherein, wind
The air inlet of cold passage 6 is located at lower end, and the upper end of air-cooled channel 6 is for air outlet and with being communicated inside housing 1.In a feasible reality
It applies in example, one end (such as upper end of partition board 7) of the partition board 7 extends to the heat exchange fin 3.Specifically, the overheat is protected
Shield mechanism 8 includes the part that the partition board 7 is located at 4 downstream of connecting portion.
In another feasible embodiment, at least one heat exchange fin 3 is extended to be contacted with the connecting portion 4,
The overheat protection mechanism includes the part that the heat exchange fin is located at other heat exchange fin upstreams.In this way, pass through extended fin 3
By the outlet air water conservancy diversion of air-cooled channel 6, while the heat of the high-temperature flue gas received can directly participate in heating cold water.Wherein, the overheat
Protection mechanism 8 extended heat exchange fin 3 can be monolithic heat exchange fin 3 on the heat exchanger tube 2 put of lowermost position, while extended
Heat exchange fin 3 can be heat exchange fin 3 close to housing 1 inner wall.
Please continue to refer to Fig. 1 to Fig. 6, a kind of embodiment of the utility model also provides a kind of gas-fired water heater heat exchange
Device, wherein, the heat exchanger is stainless steel；The heat exchanger includes housing 1, the heat exchanger tube being threaded through on the housing 1
2；The heat exchanger tube 2 is connected to be not provided with outer coil pipe with the water supply connector of the gas-fired water heater.The gas-fired water heater
The described stainless heat exchanger of the above embodiment can be referred to heat exchanger, is no longer repeated one by one herein.
Preferably, the heat exchanger tube 2 is equipped with heat exchange fin 3；The housing 1 is located at the portion of 3 upstream of heat exchange fin
Housing parts 13 are equipped with overheat protection mechanism 8；The overheat protection mechanism 8 can inhibit flue gas to conduct heat to the partial shell 13.
Specifically, the housing 1 has the connecting pin that can be connected with burner；The connecting pin of the housing 1 is to the heat exchange wing
The distance L of piece 3 is 10-100mm.
Further, the overheat protection mechanism 8 includes being set to the deflector of 13 inside of partial shell；It is described to lead
Flowing plate can be by the gas that air-cooled channel 6 flows out to the direction water conservancy diversion far from the housing 1.The deflector and the partial shell
13 have at least two connecting portions (10,11), and at least two connecting portions (10,11) vertically swim arrangement, the deflector also with
The heat exchange fin 3 contacts.Specifically, as shown in Fig. 2, a connecting portion 10 is close to the connecting portion 4, another connecting portion 11
In the downstream of the connecting portion 4 (being top in Fig. 2).
It should be noted that shape, construction and the function of the overheat protection mechanism 8 in present embodiment can refer to
Shape, construction and the function of the described overheat protection mechanism 8 of the above embodiment, no longer repeat one by one herein.
Herein cited any digital value all include between lower limiting value to upper limit value with the lower value of an incremented and
The all values of upper value, there are the intervals of at least two units between any lower value and any much higher value.For example, such as
Fruit elaborates that the quantity of component or the value of process variable (such as temperature, pressure, time etc.) are from 1 to 90, preferably from 20
To 80, more preferably from 30 to 70, then purpose is arrived in order to illustrate also clearly listing such as 15 to 85,22 in the specification
68th, 43 to 51,30 to 32 is equivalent.For being less than 1 value, it is 0.0001,0.001,0.01,0.1 suitably to think a unit.
These are only intended to the example clearly expressed, it is believed that the numerical value enumerated between minimum and peak is possible to
Combination is all expressly set forth in the specification in a similar manner.
Unless otherwise indicated, all ranges all include all numbers between endpoint and endpoint.It is used together with range
" about " or " approximation " be suitable for two endpoints of the range.Thus, " about 20 to 30 " are intended to covering " about 20 to about
30 ", including at least the endpoint indicated.
All articles and reference disclosed, including patent application and publication, for various purposes by quoting knot
Together in this.Identified element, ingredient, component or step and reality should be included by describing the term " substantially by ... form " of combination
Other elements, ingredient, component or the step of the basic novel feature of the combination are not influenced in matter.Using term "comprising" or
" comprising " describes the combination of element here, ingredient, component or step it is also contemplated that substantially by these elements, ingredient, component
Or the embodiment that step is formed.Here by using term " can with ", it is intended to it is described any to illustrate that " can with " includes
Attribute is all optional.
Multiple element, ingredient, component or step can be provided by single integrated component, ingredient, component or step.Optionally
Ground, single integrated component, ingredient, component or step can be divided into multiple element, ingredient, component or the step of separation.It is used for
The open "a" or "an" for describing element, ingredient, component or step is not said to exclude other elements, ingredient, component
Or step.
It should be understood that above description is to illustrate rather than to be limited.By reading above-mentioned retouch
It states, many embodiments and many applications except the example provided all will be aobvious and easy for a person skilled in the art
See.Therefore, the range of this introduction should not be determined with reference to foregoing description, but should with reference to appended claims and this
The four corner of equivalent that a little claims are possessed determines.For comprehensive purpose, all articles and with reference to including special
The disclosure of profit application and bulletin is all by reference to being incorporated herein.Theme disclosed herein is omitted in preceding claims
Any aspect is not intended to abandon the body matter, also should not be considered as inventor the theme is not thought of as it is disclosed
A part for utility model theme.
Claims (17)
1. a kind of gas-fired water heater, which is characterized in that including：
Stainless heat exchanger without outer coil pipe；The heat exchanger includes housing, wears heat exchanger tube on the housing；It is described to change
Heat pipe is connected with the water supply connector of the gas-fired water heater；
The burner being connected with the stainless heat exchanger；The burner has combustion chamber and burner；It is described
The wall of combustion chamber is equipped with air-cooled channel；The gas of the air-cooled channel outflow enters in the housing.
2. gas-fired water heater as described in claim 1, it is characterised in that：The heat exchanger tube is equipped with heat exchange fin；It is described
The partial shell that housing is located at the heat exchange fin upstream is equipped with overheat protection mechanism；The overheat protection mechanism can inhibit cigarette
Gas conducts heat to the partial shell.
3. gas-fired water heater as claimed in claim 2, it is characterised in that：One end of the housing and the wall of the combustion chamber
One end be equipped with connecting portion；The overheat protection mechanism is set close to the connecting portion.
4. gas-fired water heater as claimed in claim 3, it is characterised in that：The connecting portion to the heat exchange fin away from
From for 10-100mm.
5. gas-fired water heater as claimed in claim 4, it is characterised in that：The Inner Wall of Combustion Chamber is equipped with partition board；Partition board with
Air-cooled channel is formed between inner wall.
6. the gas-fired water heater as described in claim 2-5 is any, it is characterised in that：The overheat protection mechanism includes setting
Deflector on the inside of the partial shell；The deflector can be by the gas of the air-cooled channel outflow to far from the housing
Direction water conservancy diversion.
7. gas-fired water heater as claimed in claim 6, it is characterised in that：One end of the deflector is set to connecting portion
Position, the other end extend towards the heat exchange fin.
8. gas-fired water heater as claimed in claim 7, it is characterised in that：The deflector has extremely with the partial shell
Few two connecting portions；At least two connecting portions vertically swim arrangement；The deflector is also contacted with the heat exchange fin.
9. gas-fired water heater as claimed in claim 6, it is characterised in that：The deflector and the inner wall of the partial shell
Between be equipped with heat-insulated gap.
10. gas-fired water heater as claimed in claim 6, it is characterised in that：At least part deflector and the partial shell
Inner wall fitting.
11. gas-fired water heater as claimed in claim 5, it is characterised in that：One end of the partition board is to the heat exchange fin
Extension；The overheat protection mechanism includes the part that the partition board is located at the connecting portion downstream.
12. gas-fired water heater as claimed in claim 3, it is characterised in that：At least one heat exchange fin extend to
The connecting portion contact；The overheat protection mechanism includes the part that the heat exchange fin is located at other heat exchange fin upstreams.
13. a kind of gas-fired water heater heat exchanger, it is characterised in that：The heat exchanger is stainless steel；
The heat exchanger includes housing, wears heat exchanger tube on the housing；The heat exchanger tube and the gas-fired water heater
Water supply connector be connected to be not provided with outer coil pipe.
14. gas-fired water heater heat exchanger as claimed in claim 13, it is characterised in that：The heat exchanger tube is equipped with heat exchange
Fin；The partial shell that the housing is located at the heat exchange fin upstream is equipped with overheat protection mechanism；The overheat protection mechanism
Flue gas can be inhibited to conduct heat to the partial shell.
15. gas-fired water heater heat exchanger as claimed in claim 14, it is characterised in that：The housing has can be with burning
The connecting pin that device is connected；The distance of the connecting pin of the housing to the heat exchange fin is 10-100mm.
16. gas-fired water heater heat exchanger as claimed in claim 15, it is characterised in that：The overheat protection mechanism includes
The deflector being set on the inside of the partial shell；The deflector can be by the gas that air-cooled channel flows out to far from the housing
Direction water conservancy diversion.
17. gas-fired water heater heat exchanger as claimed in claim 16, it is characterised in that：The deflector and the part
Housing has at least two connecting portions；At least two connecting portions vertically swim arrangement；The deflector also with the heat exchange
Fin contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721494634.2U CN207471820U (en) | 2017-11-10 | 2017-11-10 | Gas-fired water heater and its heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721494634.2U CN207471820U (en) | 2017-11-10 | 2017-11-10 | Gas-fired water heater and its heat exchanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110645711A (en) * | 2018-06-26 | 2020-01-03 | 株式会社能率 | Heat exchanger and water heating apparatus provided with same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110645711A (en) * | 2018-06-26 | 2020-01-03 | 株式会社能率 | Heat exchanger and water heating apparatus provided with same |
| CN110645711B (en) * | 2018-06-26 | 2022-04-22 | 株式会社能率 | Heat exchanger and water heating apparatus provided with same |
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