CN210772156U - Air heating device and gas water heater - Google Patents
Air heating device and gas water heater Download PDFInfo
- Publication number
- CN210772156U CN210772156U CN201920852950.5U CN201920852950U CN210772156U CN 210772156 U CN210772156 U CN 210772156U CN 201920852950 U CN201920852950 U CN 201920852950U CN 210772156 U CN210772156 U CN 210772156U
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- Prior art keywords
- air
- heating
- gas
- heating device
- water heater
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 115
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000002485 combustion reaction Methods 0.000 claims abstract description 45
- 239000012530 fluid Substances 0.000 claims description 31
- 238000001914 filtration Methods 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 83
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 abstract description 2
- 229910000069 nitrogen hydride Inorganic materials 0.000 abstract description 2
- 238000010792 warming Methods 0.000 description 13
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 5
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)
Abstract
The utility model provides an air heating device and gas heater, the leading-in air's of air heating device and gas heater gas port intercommunication, air heating device includes: the heating shell is used for limiting a heating cavity, the heating cavity is communicated with the air guide opening, and the heating shell is provided with an air inlet; the heating part is arranged in the heating cavity and is configured to heat air in the heating cavity; the air heating device is configured to enable external air to enter the heating cavity from the air inlet and be guided to the air guide opening after being heated. The utility model provides an air heating device can heat the air that gets into in the gas heater, and the air after the heating and the gas nitrogen hydride that produces after carrying out the co-combustion obviously reduce. Therefore, the air heating device in the utility model can effectively improve the safety performance of the gas water heater.
Description
Technical Field
The utility model relates to a heating device technical field, in particular to air heating device and gas heater.
Background
The gas water heater becomes one of indispensable kitchen household appliances in modern families, and the key performances of the burner, such as combustion uniformity, harmful substance emission and the like, are one of the core indexes of the gas water heater. The fully premixed burner has been widely used due to its low pollutant emission, high combustion strength, large adjustment range, and uneasy tempering. Under the background, the research on the gas combustion technology and the combustion appliance with high combustion efficiency and low pollutant emission has important theoretical significance and practical application value for improving the level of the civil gas appliance and widening the application of the gas in the industrial field.
In recent years, the demand for reducing the emission of combustion pollutants has been increasing, and some countries have promulgated strict emission standards, including emission standards for pollutants such as nitrogen oxides of civil combustion appliances. The civil burners are used indoors, and the concentration limit of the discharged pollutants is often exceeded by the indoor air quality standard even under good ventilation conditions, so that the development of low-pollution industrial combustion equipment and civil burners is imperative.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an air heating device and gas heater aims at solving among the prior art oxynitrides formation height among the gas heater, the poor problem of security.
The utility model discloses a realize like this, an air heating device, air heating device and gas heater's the leading-in air lead the gas port intercommunication, air heating device includes:
the heating shell is used for limiting a heating cavity, the heating cavity is communicated with the air guide opening, and the heating shell is provided with an air inlet;
the heating part is arranged in the heating cavity and is configured to heat air in the heating cavity;
the air heating device is configured to enable external air to enter the heating cavity from the air inlet and be guided to the air guide opening after being heated.
Further, still include:
the air filtering assembly is arranged at the air inlet in the heating cavity and is configured to filter air entering the heating cavity.
Further, the air filter assembly includes an air intake grill; and/or
The air filter assembly includes a filter screen; and/or
The air filter assembly includes a filter sponge.
Further, the air filtering component comprises an air inlet grille, a filtering wire mesh and a filtering sponge;
the air inlet grille, the filtering wire mesh and the filtering sponge are arranged in the air inlet from outside to inside in sequence.
Furthermore, the heating part is arranged on the inner side wall of the heating shell opposite to the air inlet.
Further, the heating housing defines the heating cavity having a rectangular parallelepiped shape.
The second aspect of the utility model also provides a gas water heater,
comprising an air heating device as described in any of the above.
Further, comprising:
an outer housing, the air heating device being disposed outside the outer housing;
a flow conduit in communication with the air heating device configured to direct air heated in the air heating device into the outer housing.
Further, still include:
the heat exchanger comprises a fluid pipeline, wherein water to be heated is arranged in the fluid pipeline;
a combustion part for igniting gas flowing therethrough to heat the heat exchanger;
a jet portion configured to jet a mixture of the gas and the air toward the combustion portion;
and the mixed flow sleeve is sleeved on the jet flow part, is communicated with the external pipeline and is configured to mix air led out from the external pipeline with the fuel gas jetted by the jet flow part.
Furthermore, the mixed flow sleeve is funnel-shaped, and the jet flow part is communicated with the tip end of the mixed flow sleeve.
Compared with the prior art, the utility model provides an air heating device can heat the air that gets into in the gas heater, and the air after the heating carries out the nitrogen hydride that produces after the co-combustion with the gas and obviously reduces. Therefore, the air heating device in the utility model can effectively improve the safety performance of the gas water heater.
Drawings
Fig. 1 is a schematic perspective view of a gas water heater according to an embodiment of the present invention;
fig. 2 is a schematic front view of a gas water heater according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a gas water heater according to an embodiment of the present invention;
FIG. 4 is an enlarged partial schematic view at A of FIG. 3;
fig. 5 is a schematic perspective view of a gas water heater according to another embodiment of the present invention;
fig. 6 is a schematic front view of a gas water heater according to another embodiment of the present invention;
fig. 7 is a first schematic cross-sectional view of a gas water heater according to another embodiment of the present invention;
fig. 8 is a second schematic cross-sectional view of a gas water heater according to another embodiment of the present invention;
fig. 9 is a second schematic cross-sectional view of a gas water heater according to another embodiment of the present invention, showing the flow direction of the external air.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-9, is a preferred embodiment of the present invention.
The utility model provides an air heating device 200, this heating device be used for with gas heater 100 lead the gas port intercommunication to with leading-in gas port behind the outside air heating. The air heating device 200 includes a heating housing 210 and a heating part 250. The heating housing 210 defines a heating chamber that communicates with the air guide opening, and the heating housing 210 has an air inlet. The heating part 250 is disposed in the heating chamber and configured to heat air in the heating chamber. The heating part 250 may be an electric heating wire.
The external air enters the heating cavity from the air inlet of the heating shell and is heated by the heating part 250, and the heated air is guided into the gas water heater 100 from the air guide port of the gas water heater 100 and is mixed with the gas in the gas water heater 100 for combustion.
The air heating device 200 in this embodiment can heat the air entering the gas water heater 100, and the nitrogen-hydrogen compounds generated after the heated air and the gas are mixed and combusted are obviously reduced. The air heating device 200 in this embodiment can effectively improve the safety performance of the gas water heater 100.
The air heating device 200 may also include an air filter assembly. The air filtering component is arranged at the air inlet in the heating cavity and is configured to filter air entering the heating cavity. Specifically, the air filter assembly may include an intake grill 220 and/or a filter screen 230 and/or a filter sponge 240. When the air filtering assembly includes the above three components, the air inlet grille 220, the filtering wire mesh 230 and the filtering sponge 240 may be sequentially disposed from outside to inside, that is, the external air firstly passes through the air inlet grille 220, then passes through the filtering wire mesh 230, then passes through the filtering sponge 240 and finally enters the heating cavity.
In one embodiment, the heating housing 210 may have a rectangular parallelepiped shape and six walls. The heating housing 210 defines a heating chamber having a rectangular parallelepiped shape. The heating portion 250 may be attached to one of the inner sidewalls of the heating housing 210, and the air inlet of the heating housing 210 may be disposed on a wall surface of the heating housing 210 opposite to the heating portion 250, so as to prevent the air filter assembly from being damaged by the temperature generated by the heating portion 250. In other embodiments, the heating housing 210 may have any other shape.
The second aspect of the present invention further provides a gas water heater 100 for heating water. The gas water heater 100 includes the air heating device 200 of any one of the above. Further, the gas water heater 100 further includes an outer housing 130 and a draft tube 131. The air heating device 200 is disposed outside the outer casing 130, and may be specifically mounted at a lower end of the outer casing 130. The draft duct 131 communicates with the air heating apparatus 200, and is configured to guide the air heated in the air heating apparatus 200 into the outer case 130. By arranging the heating device outside the outer housing 130, on the one hand, replacement of the air filter device is facilitated, and on the other hand, maintenance of the air heating device 200 is also facilitated.
The gas water heater 100 also includes a heat exchanger 140, a combustion section 150, a jet section 170, and a mixing jacket 132. The heat exchanger 140 includes a fluid conduit 141, and water to be heated is disposed within the fluid conduit 141. The combustion part 150 serves to ignite the gas flowing therethrough to heat the heat exchanger 140. The jet part 170 is configured to jet a mixture of gas and air toward the combustion part 150. The mixing sleeve 132 is sleeved on the jet flow part 170, the mixing sleeve 132 is communicated with the external pipeline and is configured to mix air led out from the external pipeline with gas jetted by the jet flow part 170. Further, the flow mixing sleeve 132 is funnel-shaped, and the jet part is communicated with the tip of the flow mixing sleeve 132.
The utility model also provides an air burner of usable waste heat, this air burner can set up in arbitrary equipment that utilizes the gas heating, like domestic gas heater 100. The air burner may also include a heat exchanger 140, a combustion section 150, a jet section 170, and a warming channel 123.
The heat exchanger 140 includes a fluid pipe 141 and a fin disposed outside the fluid pipe 141, and the fin is connected to the fluid pipe 141 and is configured to increase a heat exchange area of the fluid pipe 141 and improve heat exchange efficiency of the fluid pipe 141. The fluid to be heated is provided in the fluid pipe 141, and in particular, when the air burner is the gas water heater 100 for home use, the fluid in the fluid pipe 141 may be tap water. Of course, in other embodiments, the fluid may be other fluid substances that require heating.
The combustion part 150 is used for igniting the gas flowing through, i.e. the gas is ignited by the high temperature generated by the combustion part 150 after passing through the combustion part 150. The temperature generated by the ignited combustion gases is used to heat the heat exchanger 140 to warm the fluid in the fluid conduit 141. Specifically, the combustion part 150 may be a heated steel plate or a wire mesh that can conduct current and generate high temperature, and the combustion part 150 may also be an igniter that can generate sparks. It is to be noted that any component capable of causing gas to be ignited can be regarded as the combustion section 150 in the present embodiment.
The jet part 170 is configured to jet a mixture of gas and air toward the combustion part 150. The gas is guided to jet portion 170, then is jetted by jet portion 170 and guided to combustion portion 150, so that the gas is ignited.
The warming channel 123 is used for guiding air mixed with the gas for combustion, and the warming channel 123 is configured to guide the air therein to the jet part 170 after absorbing heat generated by the ignition of the gas. That is, the air in the temperature increasing passage 123 can absorb the heat of the combustion part 150 to increase the temperature, and the air having the increased temperature is guided to the jet part 170, mixed with the gas discharged from the jet part 170, and guided to the combustion part 150. Specifically, the warming channel 123 may be a single pipe having a tubular shape or other channels capable of guiding the airflow. The air in the temperature increasing passage 123 may directly absorb heat generated by the flame ignited by the combustion part 150, or may indirectly absorb heat generated by the flame ignited by the combustion part 150. When directly absorbed, the flame generated by the ignition of the gas can be made to act directly on the warming channel 123. When indirectly absorbed, the warming channel 123 may be made to absorb heat from other components heated by the flame.
The air burner in this embodiment heats the air mixed with the gas and then sends the heated air to the combustion portion 150, so that the temperature of the air reacting with the gas is higher, and the reduction of nitrogen oxides generated after the gas combustion is facilitated, so that the air burner is safer.
Particularly, the utility model discloses utilize the heat that the flame produced after the gas of self is lighted to come the heated air, saved extra increase heating device's cost on the one hand, on the other hand has also reduced air burner's volume, and on the other hand, its waste heat that can make full use of combustor has reduced energy resource consumption, more has practical application and worth.
In one embodiment, the air burner may further include a first housing 110. The first housing 110 defines a combustion chamber. The heat exchanger 140 and the combustion portion 150 are disposed in the combustion chamber, the first housing 110 includes an air inlet 112 and an air outlet 1111, and the first housing 110 is configured to enable a mixture of gas and air to enter the combustion chamber from the air inlet 112 and to be combusted and then to be guided out from the air outlet 1111. As shown in fig. 7, after entering the first casing 110 from the air inlet 112 of the first casing 110, the mixture of the gas and the air is guided to the combustion portion 150, the gas is ignited by the combustion portion 150 and generates a flame, the flame is used for heating the heat exchanger 140, and exhaust gas generated after the gas is combusted is discharged out of the first casing 110 from the air outlet 1111. In one embodiment, the warming duct heats the air therein by absorbing the temperature of the first housing 110. Specifically, the warming channel 123 may be attached to the outer surface of the first housing 110.
An air blower 160 is provided at the air inlet 112 of the first casing 110, and the air blower 160 is arranged to accelerate the mixture of air and gas to be guided to the combustion portion 150. Specifically, the air supply device 160 may be an axial flow fan, and blades of the axial flow fan generate power by rotating, and the generated power is used for pushing a mixture of gas and air.
In one embodiment, the air burner further includes a second casing 120, and the second casing 120 is sleeved outside the first casing 110 and defines a heating channel 123 together with the first casing 110. That is, the cavity between the second casing 120 and the first casing 110 is the temperature rising channel 123, so that the air in the temperature rising channel 123 can fully absorb the heat on the first casing 110, thereby reducing the energy loss and improving the temperature rising efficiency. Of course, in other embodiments, the second housing 120 may be attached to only one surface of the first housing 110.
As shown in fig. 7 to 8, the second casing 120 has an injection port 122 opposite to the air inlet 112, and the spouting portion 170 includes a gas nozzle provided to the injection port 122 and configured to spout the gas toward the air inlet 112 so that the air in the warming channel 123 is introduced into the first casing 110 along with the gas. That is, the air in the warming duct may be moved by the injection power generated from the jet part 170 and flow to the combustion part 150. Of course, when the air blowing device 160 is provided, the power source of the air is mainly provided by the air blowing device 160.
The first housing 110 includes a tubular outlet pipe 111, a valve 1112 for controlling exhaust gas is further disposed in the outlet pipe 111, and an outlet 1111 is disposed at an end of the outlet pipe 111. The second housing 120 further includes an air guide opening 121, and the air guide opening 121 is annular and is defined by the second housing 120 and the air outlet pipe 111. Therefore, the problem that the air outlet 1111 of the first casing 110 and the air guide opening 121 of the second casing 120 are prone to position interference can be solved well. And also makes the flow of the air flowing into the warming channel 123 and the flow of the exhaust gas discharged from the first casing 110 not to be affected by each other.
In order to purify the air flowing into the warming channel 123, an air filter assembly 180 may be further disposed at the air guide opening 121 in this embodiment. The air filter assembly 180 may include an air intake grill and/or a filter screen and/or a filter sponge. When the air filter assembly 180 includes the above three components, the air inlet grille, the filter screen and the filter sponge may be sequentially disposed from outside to inside. The air filter assembly 180 can well isolate impurities in the air entering the warming channel 123, protect internal elements of the air burner, and prolong the service life of the air burner.
In one embodiment, when the air burner includes both the first housing 110 and the second housing 120. It may also include a first outer conduit 142 and a second outer conduit 143. The first external pipeline is used for guiding the fluid into the fluid pipeline 141, and the first external pipeline sequentially passes through the second shell 120 and the first shell 110 from the outside of the second shell 120 and then is communicated with the fluid pipeline 141. The second external pipe is used for guiding out the fluid in the fluid pipe 141, and the second external pipe passes through the first casing 110 and the second casing 120 in sequence from the inside of the first casing 110 and guides out the fluid to the outside of the second casing 120. The structure can well circulate the heated fluid. The low-temperature external fluid flows into the fluid pipe 141 through the first external pipe 142, is heated, and is then discharged through the second external pipe 143 to be used.
In another embodiment of the present invention, there is provided a gas water heater 100, wherein the gas water heater 100 comprises the air burner of any of the above embodiments, wherein the fluid in the fluid pipeline 141 is water. That is, the tap water flows into the fluid pipe 141 through the first external pipe 142, is heated, and then flows out through the second external pipe 143 to be used.
As shown in fig. 9, the specific flow process of the air for combustion is: the air is filtered by the air filter assembly 180 and enters the temperature rising channel 123 between the first casing 110 and the second casing 120, the air absorbs the heat of the first casing 110 when passing through the temperature rising channel 123, then is guided to the jet flow part 170 and is mixed with the gas sprayed by the jet flow part 170, the mixed mixture is guided to the combustion part 150 by the air supply device 160, the combustion part 150 ignites the mixture and heats the tap water in the heat exchanger 140, and the exhaust gas generated after the mixture is combusted is guided out of the gas water heater 100 by the air outlet 1111.
The gas water heater 100 further includes an outer housing 130, the outer housing 130 encasing the first housing 110 for protecting internal components thereof.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An air heating apparatus, characterized in that the air heating apparatus is communicated with an air guide port of a gas water heater, into which air is introduced, the air heating apparatus comprising:
the heating shell is used for limiting a heating cavity, the heating cavity is communicated with the air guide opening, and the heating shell is provided with an air inlet;
the heating part is arranged in the heating cavity and is configured to heat air in the heating cavity;
the air heating device is configured to enable external air to enter the heating cavity from the air inlet and be guided to the air guide opening after being heated.
2. The air heating apparatus according to claim 1, further comprising:
the air filtering assembly is arranged at the air inlet in the heating cavity and is configured to filter air entering the heating cavity.
3. Air heating device according to claim 2,
the air filter assembly includes an air intake grill; and/or
The air filter assembly includes a filter screen; and/or
The air filter assembly includes a filter sponge.
4. Air heating device according to claim 2,
the air filtering component comprises an air inlet grille, a filtering wire mesh and a filtering sponge;
the air inlet grille, the filtering wire mesh and the filtering sponge are arranged in the air inlet from outside to inside in sequence.
5. Air heating device according to any of claims 1-4,
the heating part is arranged on the inner side wall of the heating shell, which is opposite to the air inlet.
6. Air heating device according to claim 5,
the heating housing defines the heating cavity in a rectangular parallelepiped shape.
7. A gas water heater is characterized in that a water inlet pipe is arranged on the water inlet pipe,
comprising an air heating device according to any one of claims 1 to 6.
8. The gas water heater of claim 7, comprising:
an outer housing, the air heating device being disposed outside the outer housing;
a flow conduit in communication with the air heating device configured to direct air heated in the air heating device into the outer housing.
9. The gas water heater of claim 8, further comprising:
the heat exchanger comprises a fluid pipeline, wherein water to be heated is arranged in the fluid pipeline;
a combustion part for igniting gas flowing therethrough to heat the heat exchanger;
a jet portion configured to jet a mixture of the gas and the air toward the combustion portion;
and the mixed flow sleeve is sleeved on the jet flow part, is communicated with an external pipeline and is configured to mix air led out from the external pipeline with gas jetted by the jet flow part.
10. The gas water heater of claim 9,
the mixed flow sleeve is funnel-shaped, and the jet flow part is communicated with the tip end of the mixed flow sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920852950.5U CN210772156U (en) | 2019-06-06 | 2019-06-06 | Air heating device and gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920852950.5U CN210772156U (en) | 2019-06-06 | 2019-06-06 | Air heating device and gas water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210772156U true CN210772156U (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920852950.5U Active CN210772156U (en) | 2019-06-06 | 2019-06-06 | Air heating device and gas water heater |
Country Status (1)
| Country | Link |
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| CN (1) | CN210772156U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260309A (en) * | 2019-06-06 | 2019-09-20 | 华帝股份有限公司 | Air heating device and gas water heater |
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2019
- 2019-06-06 CN CN201920852950.5U patent/CN210772156U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260309A (en) * | 2019-06-06 | 2019-09-20 | 华帝股份有限公司 | Air heating device and gas water heater |
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