CN104110868A - Heat exchanger for gas water heater and gas water heater with same - Google Patents
Heat exchanger for gas water heater and gas water heater with same Download PDFInfo
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- CN104110868A CN104110868A CN201410255436.5A CN201410255436A CN104110868A CN 104110868 A CN104110868 A CN 104110868A CN 201410255436 A CN201410255436 A CN 201410255436A CN 104110868 A CN104110868 A CN 104110868A
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Abstract
The invention discloses a heat exchanger for a gas water heater and the gas water heater with the heat exchanger. The heat exchanger comprises a shell and a plurality of heat exchange pipelines, a cavity with the open bottom is defined in the shell and comprises a combustion chamber and a heat exchange chamber, and a water heat exchange channel is defined in the wall of the shell. The heat exchange pipelines are arranged in the cavity, at least one part of the heat exchange pipelines are arranged in the heat exchange chamber, each heat exchange pipeline is communicated with the water heat exchange channel, the heat exchange pipelines are arranged in rows in the vertical direction, and the heat exchange pipelines in the adjacent rows are distributed in a staggered mode. According to the heat exchanger, the water heat exchange channel can absorb most heat in the combustion chamber, heat exchange efficiency is improved, the overall temperature of the shell is uniform, temperature is low, the heat transfer stability of the heat exchanger can be better, meanwhile, the size is compact, and space can be effectively saved. The standing time of high-temperature smoke can be prolonged to the largest extent, the heat exchange efficiency of each heat exchange pipeline is improved, and the heat exchange efficiency of the heat exchanger is improved.
Description
Technical field
The present invention relates to appliance field, especially relate to a kind of heat exchanger for gas heater and there is its gas heater.
Background technology
In gas heater in correlation technique, be generally to adopt copper heat exchanger, copper heat exchanger is when normal work, and combustor surface temperature is very high, and what have surpasses 180 degree, and this part heat will run off, comparatively obvious to the effectiveness affects of gas heater.
Summary of the invention
The present invention is intended to solve at least to a certain extent one of technical problem in correlation technique.
For this reason, one object of the present invention is to propose a kind of heat exchanger for gas heater, and heat exchange efficiency is high.
Another object of the present invention is to propose a kind of gas heater with above-mentioned heat exchanger.
According to the heat exchanger for gas heater of the embodiment of the present invention, comprise: housing, in described housing, limit the cavity of bottom-open, described cavity comprises combustion chamber and is positioned at the Heat Room of top, described combustion chamber, in the wall of described housing, limit water outlet heat exchanger channels, the delivery port of described water heat exchanger channels is positioned at the top of the water inlet of described water heat exchanger channels; A plurality of heat exchange pipelines, described a plurality of heat exchange pipeline is located at heat exchange pipeline in described cavity and described at least a portion and is positioned at described Heat Room, described in each, heat exchange pipeline is communicated with described water heat exchanger channels, described a plurality of heat exchange pipeline is divided into many rows on above-below direction, and adjacent row's described heat exchange pipeline is interspersed.
According to the heat exchanger for gas heater of the embodiment of the present invention, by water heat exchanger channels being located in the wall of housing, not only make water heat exchanger channels can absorb the most of heat in combustion chamber, improved heat exchange efficiency, also make housing bulk temperature even, and temperature is lower, heat exchanger heat transfer stationary performance is better, volume compact, can effectively save space simultaneously.Again because a plurality of heat exchange pipelines are divided into many rows on above-below direction, and adjacent row's heat exchange pipeline is interspersed, therefore can extend to greatest extent the time of staying of high-temperature flue gas, improve the heat exchange efficiency of each heat exchange pipeline, thereby improved the heat exchange efficiency of heat exchanger.
In addition, the heat exchanger for gas heater according to the above embodiment of the present invention can also have following additional technical characterictic:
In some embodiments of the invention, described in each, the cross section of heat exchange pipeline forms ellipse.
Preferably, described a plurality of heat exchange pipeline is all located in described Heat Room.
According to some embodiments of the present invention, described in each, the inwall of heat exchange pipeline is provided with the turbulent part with action of turbulent flow.
In some embodiments of the invention, the inwall of described water heat exchanger channels is provided with flow-disturbing part.
Preferably, the cross section of described water heat exchanger channels forms rectangle.
Particularly, described delivery port is located at the top of described housing, and described water inlet is located at the bottom of described housing.
In some embodiments of the invention, described housing and described a plurality of heat exchange pipeline are respectively aluminum casting.
Preferably, the wall thickness of described water heat exchanger channels is respectively 2.5mm～3mm with the wall thickness of heat exchange pipeline described in each.
According to the gas heater of the embodiment of the present invention, comprise the heat exchanger for gas heater according to the above embodiment of the present invention.
According to the gas heater of the embodiment of the present invention, by being provided with above-mentioned heat exchanger, thereby make the heat transfer effect of gas heater high, extend the service life of gas heater.
Accompanying drawing explanation
Fig. 1 is according to the partial sectional view of the heat exchanger of the embodiment of the present invention;
Fig. 2 is according to the profile of the heat exchanger of the embodiment of the present invention.
Reference numeral:
Heat exchanger 100,
Housing 1, cavity 10, combustion chamber 101, Heat Room 102,
Water heat exchanger channels 2, delivery port 20, water inlet 21, subchannel 22,
Heat exchange pipeline 3.
The specific embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", orientation or the position relationship of indications such as " circumferentially " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, the implication of " a plurality of " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or be integral; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.
Below with reference to Fig. 1 and Fig. 2, describe in detail according to the heat exchanger 100 for gas heater of the embodiment of the present invention, wherein it should be noted that, gas heater also comprises the elements such as shell, air-feeding-exhausting apparatus, burner, air-control device, water-control device, gas linkage apparatus for gas and electronic control system, the operation principle of gas heater etc. is prior art, is not just described in detail here.
As depicted in figs. 1 and 2, according to the heat exchanger 100 of the embodiment of the present invention, comprise: housing 1 and a plurality of heat exchange pipeline 3, wherein, in housing 1, limit the cavity 10 of bottom-open, cavity 10 comprises combustion chamber 101 and is positioned at the Heat Room 102 of 101 tops, combustion chamber, in the wall of housing 1, limit water outlet heat exchanger channels 2, the delivery port 20 of water heat exchanger channels 2 is positioned at the top of the water inlet 21 of water heat exchanger channels 2.Particularly, water heat exchanger channels 2 comprises a plurality of subchannels spaced apart on above-below direction 22, and adjacent subchannel 22 communicates with each other, and is positioned at the subchannel 22 of below and has water inlet 21, and the subchannel 22 that is positioned at the top has delivery port 20.
A plurality of heat exchange pipelines 3 are located in cavity 10 and at least a portion heat exchange pipeline 3 is positioned at Heat Room 102.In other words, a plurality of heat exchange pipelines 3 can be to be only distributed in Heat Room 102, or the part in a plurality of heat exchange pipeline 3 is distributed in combustion chamber 101 and another part is distributed in Heat Room 102.In concrete example of the present invention, a plurality of heat exchange pipelines 3 are all located in Heat Room 102.
Each heat exchange pipeline 3 is communicated with water heat exchanger channels 2, and a plurality of heat exchange pipelines 3 are divided into many rows on above-below direction, and adjacent row's heat exchange pipeline 3 is interspersed.
Particularly, when heat exchanger 100 is assemblied in gas heater, burner is positioned at the below of heat exchanger 100, combustion gas 101 interior burnings and produce heat in combustion chamber, the high-temperature flue gas that burning produces upwards flows through Heat Room 102, the heat that cold water enters in water heat exchanger channels 2 to produce with combustion gas from water inlet 21 carries out heat exchange, and the water through heating in water heat exchanger channels 2 enters into and in heat exchange pipeline 3, carries out further heat exchange.
Because a plurality of heat exchange pipelines 3 are divided into many rows on above-below direction, and adjacent row's heat exchange pipeline 3 is interspersed, high-temperature flue gas S shape is flowed, effectively extended the high-temperature flue gas time of staying, make high-temperature flue gas can surround each heat exchange pipeline 3, improved the heat exchange efficiency of each heat exchange pipeline 3.
While is because water heat exchanger channels 2 is located in the wall of housing 1, so effective contact area increase of water heat exchanger channels 2 and housing 1, can effectively absorb the hyperthermia radiation that combustion chamber 101 produces.
According to the heat exchanger 100 for gas heater of the embodiment of the present invention, by water heat exchanger channels 2 being located in the wall of housing 1, not only make water heat exchanger channels 2 can absorb the most of heat in combustion chamber 101, improved heat exchange efficiency, also make housing 1 bulk temperature even, and temperature is lower, heat exchanger 100 heat transfer stationary performances are better, volume compact, can effectively save space simultaneously.Again because a plurality of heat exchange pipelines 3 are divided into many rows on above-below direction, and adjacent row's heat exchange pipeline 3 is interspersed, therefore can extend to greatest extent the time of staying of high-temperature flue gas, improve the heat exchange efficiency of each heat exchange pipeline 3, thereby improved the heat exchange efficiency of heat exchanger 100.
Below with reference to Fig. 1 and Fig. 2, describe in detail according to the heat exchanger 100 of the specific embodiment of the invention, the gas heater that is equipped with this heat exchanger 100 also comprises mechanical type kick temperature controller (scheming not shown), and mechanical type kick temperature controller is arranged on the outlet pipe being communicated with delivery port 20.
As depicted in figs. 1 and 2, according to the heat exchanger 100 of the embodiment of the present invention, comprise housing 1 and heat exchange pipeline 3.In the wall of housing 1, be provided with water heat exchanger channels 2, water heat exchanger channels 2 comprises a plurality of subchannels that communicate with each other 22, and a plurality of subchannels 22 are uniformly distributed in housing 1.The cross section of water heat exchanger channels 2 forms rectangle, and delivery port 20 is positioned at the top of water inlet 21, and delivery port 20 is located at the top of housing 1, and water inlet 21 is located at the bottom of housing 1.
By delivery port 20 being located to the top of housing 1, only have in heat exchanger 100, be full of water after hot water could flow out from the delivery port 20 on top, simultaneously when there is cutting off the water supply phenomenon in water inlet 21, the steam of the water generates of heat exchange pipeline 3 and the 2 interior storages of water heat exchanger channels must be discharged from delivery port 20, when therefore even the automatically controlled control system of gas heater is malfunctioning, mechanical type kick temperature controller also can react and close the gas channels of gas heater within the shortest time, guarantees that heat exchanger 100 there will not be dry combustion method phenomenon.By making the cross section of water heat exchanger channels 2 form rectangle, guarantee can store water in water heat exchanger channels 2 simultaneously, also can prevent to cut off the water supply suddenly and cause dry combustion method phenomenon because of water inlet 21.
On the inwall of water heat exchanger channels 2, can be provided with flow-disturbing part (scheming not shown).Thereby by being provided with spoiler, can increase the heat exchange efficiency of water heat exchanger channels 2, can also extend the service life of heat exchanger 100 simultaneously.
A plurality of heat exchange pipelines 3 are located in Heat Room 102, thereby the flame that can avoid burner to produce burns heat exchange pipeline 3, guarantee the service life of heat exchange pipeline 3.The cross section of each heat exchange pipeline 3 forms ellipse.Thereby make the simple in structure of each heat exchange pipeline 3, the heat exchange pipeline 3 of elliptical shape can also make the absorption high-temperature flue-gas of heat exchange pipeline 3 maximum magnitudes simultaneously.Certainly be worth understanding, each heat exchange pipeline 3 can also form for example rectangle of other shapes.
The noise producing interior the flowing of each heat exchange pipeline 3 in order to reduce current, on the inwall of each heat exchange pipeline 3, can be provided with the turbulent part with action of turbulent flow, such as turbulent part, can be spring or turbulent flow thorn sheet etc., wherein action of turbulent flow refers to work to play disturbance at the interior mobile water of heat exchange pipeline 3 in order to avoid the water in heat exchange pipeline 3 to flow with stable state.Need to describe, can also be by the inwall of heat exchange pipeline 3 is designed to rough surface for example waveform so that water is played to action of turbulent flow.
Housing 1 and a plurality of heat exchange pipeline 3 are respectively aluminum casting.Thereby can reduce the cost of heat exchanger 100.On the outer surface of the inner surface of the outer surface of the inner surface of cavity 10, housing 1, each heat exchange pipeline 3 and each heat exchange pipeline 3, can be respectively equipped with the coating of corrosion-and high-temp-resistant, to extend the service life of heat exchanger 100.
Heat exchanger 100 can be preferably integral casting forming, does not weld or expanded joint point, and structural strength is high.Because adopting integral casting process, makes by heat exchanger 100, the aluminium alloy of its surfaces externally and internally, by high-temperature oxydation, forms the oxide layer of consistency of thickness, without carrying out surface treatment again, therefore there is good Corrosion Protection, also can extend the service life of heat exchanger 100.
In specific embodiments more of the present invention, the wall thickness of the wall thickness of water heat exchanger channels 2 and each heat exchange pipeline 3 is respectively 2.5mm～3mm.Thereby make water heat exchanger channels 2 and heat exchange pipeline 3 self just can effectively absorb noise.Further, on the inwall of each heat exchange pipeline 3, can be provided with the turbulent part with action of turbulent flow, thereby can reach quiet effect.
According to the gas heater of the embodiment of the present invention, comprise the heat exchanger 100 for gas heater according to the above embodiment of the present invention.Thereby make the heat transfer effect of gas heater high, extend the service life of gas heater.
In the present invention, unless otherwise clearly defined and limited, First Characteristic Second Characteristic " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, First Characteristic Second Characteristic " on ", " top " and " above " but First Characteristic directly over Second Characteristic or oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " can be First Characteristic under Second Characteristic or tiltedly, or only represent that First Characteristic level height is less than Second Characteristic.
In the description of this description, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, to the schematic statement of above-mentioned term not must for be identical embodiment or example.And, the specific features of description, structure, material or feature can one or more embodiment in office or example in suitable mode combination.In addition,, not conflicting in the situation that, those skilled in the art can carry out combination and combination by the feature of the different embodiment that describe in this description or example and different embodiment or example.
Although illustrated and described embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, modification, replacement and modification.
Claims (10)
1. for a heat exchanger for gas heater, it is characterized in that, comprising:
Housing, in described housing, limit the cavity of bottom-open, described cavity comprises combustion chamber and is positioned at the Heat Room of top, described combustion chamber, restriction water outlet heat exchanger channels in the wall of described housing, and the delivery port of described water heat exchanger channels is positioned at the top of the water inlet of described water heat exchanger channels;
A plurality of heat exchange pipelines, described a plurality of heat exchange pipeline is located at heat exchange pipeline in described cavity and described at least a portion and is positioned at described Heat Room, described in each, heat exchange pipeline is communicated with described water heat exchanger channels, described a plurality of heat exchange pipeline is divided into many rows on above-below direction, and adjacent row's described heat exchange pipeline is interspersed.
2. the heat exchanger for gas heater according to claim 1, is characterized in that, described in each, the cross section of heat exchange pipeline forms ellipse.
3. the heat exchanger for gas heater according to claim 1, is characterized in that, described a plurality of heat exchange pipelines are all located in described Heat Room.
4. the heat exchanger for gas heater according to claim 1, is characterized in that, described in each, the inwall of heat exchange pipeline is provided with the turbulent part with action of turbulent flow.
5. the heat exchanger for gas heater according to claim 1, is characterized in that, the inwall of described water heat exchanger channels is provided with flow-disturbing part.
6. the heat exchanger for gas heater according to claim 1, is characterized in that, the cross section of described water heat exchanger channels forms rectangle.
7. the heat exchanger for gas heater according to claim 1, is characterized in that, described delivery port is located at the top of described housing, and described water inlet is located at the bottom of described housing.
8. according to the heat exchanger for gas heater described in any one in claim 1-7, it is characterized in that, described housing and described a plurality of heat exchange pipeline are respectively aluminum casting.
9. the heat exchanger for gas heater according to claim 8, is characterized in that, the wall thickness of described water heat exchanger channels is respectively 2.5mm～3mm with the wall thickness of heat exchange pipeline described in each.
10. a gas heater, is characterized in that, comprises according to the heat exchanger for gas heater described in any one in claim 1-9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410255436.5A CN104110868A (en) | 2014-06-10 | 2014-06-10 | Heat exchanger for gas water heater and gas water heater with same |
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| CN201410255436.5A CN104110868A (en) | 2014-06-10 | 2014-06-10 | Heat exchanger for gas water heater and gas water heater with same |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107339800A (en) * | 2017-08-16 | 2017-11-10 | 江苏金麦穗生态农业科技有限公司 | A kind of combusting rice hull heat exchanger |
| CN107345659A (en) * | 2017-08-16 | 2017-11-14 | 江苏金麦穗生态农业科技有限公司 | A kind of combusting rice hull heat-exchanger rig |
| CN110017597A (en) * | 2019-04-15 | 2019-07-16 | 陈雄 | A kind of zero cold water section heat exchanger with water space |
| CN110530007A (en) * | 2019-05-29 | 2019-12-03 | 梁宝锋 | Gas heater and its heat exchanger, Life of Heat Exchanger Shell |
| WO2020056651A1 (en) * | 2018-09-19 | 2020-03-26 | 苏州明志科技有限公司 | Aluminum alloy heat exchanger and preparation method therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107339800A (en) * | 2017-08-16 | 2017-11-10 | 江苏金麦穗生态农业科技有限公司 | A kind of combusting rice hull heat exchanger |
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| CN110530007A (en) * | 2019-05-29 | 2019-12-03 | 梁宝锋 | Gas heater and its heat exchanger, Life of Heat Exchanger Shell |
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