CN210624954U - Full-premixing gas water heater - Google Patents
Full-premixing gas water heater Download PDFInfo
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- CN210624954U CN210624954U CN201920826393.XU CN201920826393U CN210624954U CN 210624954 U CN210624954 U CN 210624954U CN 201920826393 U CN201920826393 U CN 201920826393U CN 210624954 U CN210624954 U CN 210624954U
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- gas
- carbon dioxide
- controller
- heat exchange
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 47
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 108
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 55
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 55
- 238000002485 combustion reaction Methods 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 claims description 74
- 239000000779 smoke Substances 0.000 claims description 19
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 5
- 230000001276 controlling effect Effects 0.000 claims description 3
- 239000003517 fume Substances 0.000 claims 1
- 239000002737 fuel gas Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- -1 hydrocarbon alkane Chemical class 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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- Regulation And Control Of Combustion (AREA)
Abstract
The utility model discloses a full premix gas heater, it includes heat exchange assembly, collection petticoat pipe, mixes subassembly, carbon dioxide sensor, controller and with the combustor that heat exchange assembly connects in advance, collection petticoat pipe and mix the subassembly and set up respectively in heat exchange assembly's lower extreme and upper end in advance, the carbon dioxide sensor is arranged in detecting the content of carbon dioxide in the burning result in collection petticoat pipe to with the content numerical value transmission of this carbon dioxide to the controller, the controller adjust the proportion of air and gas in the subassembly in advance according to the content of the carbon dioxide received; the utility model discloses a detect the content of carbon dioxide in the burning result in the collection petticoat pipe, the volume of adding of air-handling and gas makes the gas heater maintain the combustion ratio when the best state burns to guarantee the stability of full premix burning.
Description
Technical Field
The utility model belongs to the technical field of gas heater, concretely relates to full premix gas heater.
Background
The gas water heater is a device which takes gas as fuel and quickly prepares hot water through gas combustion, and the full premix gas water heater burns after the gas and air are completely mixed before the water heater burns, and no secondary air participates in the burning process, and the gas water heater adopting the burning mode is called as the full premix gas water heater.
The requirement of the fully premixed gas water heater on the premixing proportion of gas and air is very high due to the requirement of combustion characteristics, and if the content of the premixed air does not reach or exceed a preset value, the problems of unstable combustion, turbulent combustion and even combustion oscillation of the fully premixed gas water heater can be caused, so that the normal use of the gas water heater is influenced.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a full premix gas water heater has solved the unable accurate control's of content that current full premix gas water heater mixes the air problem.
The technical proposal adopted by the utility model is that,
the utility model provides a full premix gas heater, its includes heat exchange assembly, collection petticoat pipe, mixes subassembly, carbon dioxide sensor, controller and with the combustor that heat exchange assembly connects, collection petticoat pipe and mix the subassembly and set up respectively in heat exchange assembly's lower extreme and upper end, the carbon dioxide sensor is arranged in detecting the content of carbon dioxide in the collection petticoat pipe combustion product to with the content numerical value transmission of this carbon dioxide extremely the controller, the controller adjusts according to the content of received carbon dioxide the subassembly in air and the proportion of gas premix.
Preferably, the premixing assembly comprises an air supply unit, a gas supply unit and a premixer, wherein the air supply unit and the gas supply unit are both communicated with the premixer, and the air supply unit and the gas supply unit are further connected with the controller for controlling the supply amount of the air and the gas through the controller.
Preferably, the gas water heater further comprises a mixing chamber, one end of the mixing chamber is communicated with the premixer, and the other end of the mixing chamber is communicated with the burner.
Preferably, the gas supply unit comprises a gas pipeline connected with a gas source and a regulating valve arranged on the gas pipeline, and the regulating valve is connected with the controller.
Preferably, the air supply unit includes a blower fan connected with the controller.
Preferably, the heat exchange assembly comprises a heat exchange cavity, a heat exchanger, a cold water inlet and a hot water outlet, the cold water inlet and the hot water outlet are respectively arranged on two sides of the heat exchange cavity through pipelines, and the heat exchanger is arranged in the heat exchange cavity.
Preferably, the gas water heater further comprises a smoke exhaust pipe, and the smoke exhaust pipe is arranged on the side surface of the smoke collecting hood.
Compared with the prior art, the utility model discloses during the use, carbon dioxide sensor real-time detection burns the content of carbon dioxide in the result in the collection petticoat pipe to transmit the content of carbon dioxide to the controller, after the controller received the content of dioxide then, contrast it with predetermined carbon dioxide content threshold value, and according to the joining of contrast result conditioned air and gas, the combustion ratio when making gas heater maintain the optimum state burning, thereby guarantee the stability of full premix burning.
Drawings
FIG. 1 is a schematic structural diagram of a fully premixed gas water heater according to an embodiment of the present invention;
FIG. 2 is a control block diagram of a fully premixed gas water heater according to an embodiment of the present invention;
fig. 3 is a flow chart illustrating the operation of a fully premixed gas water heater according to an embodiment of the present invention.
The reference numbers are as follows:
1-heat exchange component, 2-smoke collecting hood, 3-premixing component, 4-carbon dioxide sensor, 5-controller, 6-burner, 7-mixing cavity, 8-smoke exhaust pipe, 11-heat exchange cavity, 12-cold water inlet, 13-hot water outlet, 31-air supply unit, 32-gas supply unit, 33-premixer, 321-gas pipeline, 322-regulating valve.
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.
Example 1
The embodiment 1 of the utility model provides a full premix gas heater, as shown in fig. 1, it includes heat exchange assembly 1, collection petticoat pipe 2, mixes subassembly 3 in advance, carbon dioxide sensor 4, controller 5 and with combustor 6 that heat exchange assembly 1 is connected, collection petticoat pipe 2 and mix subassembly 3 in advance and set up respectively in the lower extreme and the upper end of heat exchange assembly 1, carbon dioxide sensor 4 is used for detecting the content of carbon dioxide in the burning product in collection petticoat pipe 2, and transmits the content numerical value of this carbon dioxide to controller 5, controller 5 according to the content regulation of the carbon dioxide received air and the proportion of gas in mix subassembly 3 in advance;
thus, by adopting the structure, the carbon dioxide sensor 4 detects the content of carbon dioxide in the combustion products in the smoke collecting hood 2 in real time and transmits the content of the carbon dioxide to the controller 5, the controller 5 compares the content of the carbon dioxide with a preset carbon dioxide content threshold value after receiving the content of the carbon dioxide, and adjusts the proportion of air and fuel gas in the premixing component 3 according to the comparison result, so that the combustion ratio of the gas water heater in the optimal combustion state is maintained.
The premixing assembly 3 comprises an air supply unit 31, a gas supply unit 32 and a premixer 33, wherein the air supply unit 31 and the gas supply unit 32 are both communicated with the premixer 33, and the air supply unit 31 and the gas supply unit 32 are also connected with the controller 5 for controlling the supply amount of air and gas through the controller 5;
in this way, the air supply unit 31 supplies oxygen, the gas supply unit 32 supplies gas, and then the air and the gas are uniformly mixed in the premixer 33 and then are transmitted to the combustor 6 for use, so that instability caused by nonuniform and direct combustion of the air and the gas is avoided.
Example 2
The embodiment 2 of the utility model provides a full premix gas heater, it further includes on the basis of embodiment 1:
the gas supply unit 32 comprises a gas pipeline 321 connected with a gas source and a regulating valve 322 arranged on the gas pipeline 321, and the regulating valve 322 is connected with the controller 5; the air supply unit 31 includes a blower fan connected to the controller 5;
thus, the amount of fuel gas is controlled by the regulating valve 322, and the amount of oxygen is controlled by regulating the rotation speed of the fan.
The gas water heater further comprises a mixing cavity 7, wherein one end of the mixing cavity 7 is communicated with the premixer 33, and the other end of the mixing cavity 7 is communicated with the combustor 6.
The heat exchange assembly 1 comprises a heat exchange cavity 11, a heat exchanger, a cold water inlet 12 and a hot water outlet 13, wherein the cold water inlet 12 and the hot water outlet 13 are respectively arranged on two sides of the heat exchange cavity 11 through pipelines, and the heat exchanger is arranged in the heat exchange cavity 11;
therefore, cold water enters the heat exchange cavity 11 through the cold water inlet 12, is heated under the action of the burner 6, then exchanges heat through the heat exchanger, and finally is discharged from the hot water outlet 13 for users to use, and the whole process is simple and easy to realize.
The gas water heater further comprises a smoke exhaust pipe 8, wherein the smoke exhaust pipe 8 is arranged on the side surface of the smoke collecting hood 2;
waste gas produced after combustion enters the smoke collecting hood 2 and then is subjected to specified emission through the smoke exhaust pipe 8, so that the influence on the environment caused by the scattered combustion products is avoided.
The working process is as follows: as shown in fig. 3:
s1, detecting the content of carbon dioxide in combustion products in the smoke collecting hood 2 in real time by the carbon dioxide sensor 4, and transmitting the content of the carbon dioxide to the controller 5;
specifically, the main component of the fuel gas is hydrocarbon alkane, and the combustion product generated after the fuel gas is mixed with air and combusted contains water vapor and carbon dioxide, and if the air content is excessive, the combustion product also contains excessive air; therefore, the content of the carbon dioxide in the smoke collecting hood 2 acquired by the carbon dioxide sensor 4 in real time can completely reflect the current ratio of air to fuel gas;
s2, the controller 5 receives the content of the carbon dioxide and compares the content with a carbon dioxide threshold preset in the controller 5;
specifically, if the ratio of the air and the fuel gas is fixed, the content of carbon dioxide in the combustion product is also fixed; the carbon dioxide threshold is the content of carbon dioxide generated by air and fuel gas under the optimal combustion condition; the step is to receive the content of carbon dioxide in the smoke collecting hood 2 and compare the content with the content of carbon dioxide generated under the optimal combustion condition;
s3, the controller 5 adjusts the ratio of air and gas in the premixing component 3 according to the comparison result of S2, so that the gas water heater burns at the optimal combustion ratio;
specifically, when the content of carbon dioxide in the smoke collecting hood 2 is less than a preset carbon dioxide threshold, the content of air needs to be reduced or/and the content of fuel gas needs to be increased; when the content of the carbon dioxide in the smoke collecting hood 2 is larger than a preset carbon dioxide threshold value, the content of air needs to be increased or/and the content of fuel gas needs to be reduced; when the content of the carbon dioxide in the smoke collecting hood 2 is the same as the preset carbon dioxide threshold value, the content of the air and the content of the fuel gas in the premixing component 3 are kept unchanged, and the combustion is continued;
wherein, the content of the air is increased or reduced by adjusting the rotating speed of the fan; the content of the gas is increased or decreased by adjusting the opening of the adjusting valve 322.
If the content of the carbon dioxide of the current combustion product deviates from a preset carbon dioxide threshold value, the proportion of the current air and the gas is proved to be changed, if the air is relatively excessive, the content of the carbon dioxide of the combustion product is relatively reduced, otherwise, the content of the carbon dioxide of the combustion product is increased.
Compared with the prior art, the utility model discloses a mixing proportion of accurate control gas and air guarantees the stability of full premix burning, eliminates phenomena that influence water heater normal use such as burning turbulent flow, burning oscillation.
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 (7)
1. The utility model provides a full premix gas heater, its characterized in that, its includes heat exchange assembly (1), collection petticoat pipe (2), mixes subassembly (3), carbon dioxide sensor (4), controller (5) and with combustor (6) that heat exchange assembly (1) is connected, collection petticoat pipe (2) and mix subassembly (3) and set up respectively in the lower extreme and the upper end of heat exchange assembly (1), carbon dioxide sensor (4) are arranged in detecting the content of carbon dioxide among the collection petticoat pipe (2) combustion products to with the content numerical value transmission of this carbon dioxide extremely controller (5), controller (5) adjust according to the content of received carbon dioxide mix the proportion of air and gas in subassembly (3).
2. A fully premixed gas water heater according to claim 1, characterized in that the premixing assembly (3) comprises an air supply unit (31), a gas supply unit (32) and a premixer (33), both the air supply unit (31) and the gas supply unit (32) being in communication with the premixer (33), the air supply unit (31) and the gas supply unit (32) being further connected to the controller (5) for controlling the supply of air and gas by the controller (5).
3. A fully premixed gas water heater according to claim 2, characterized by further comprising a mixing chamber (7), said mixing chamber (7) communicating with said premixer (33) at one end and with said burner (6) at the other end.
4. A fully premixed gas water heater according to claim 2, characterized in that the gas supply unit (32) comprises a gas pipe (321) connected to a gas source and a regulating valve (322) provided on the gas pipe (321), the regulating valve (322) being connected to the controller (5).
5. A fully premixed gas water heater according to claim 2, characterized in that said air supply unit (31) comprises a fan connected to the controller (5).
6. A fully premixed gas water heater according to any of claims 1-5, characterized in that the heat exchange assembly (1) comprises a heat exchange cavity (11), a heat exchanger, a cold water inlet (12) and a hot water outlet (13), the cold water inlet (12) and the hot water outlet (13) are respectively arranged at two sides of the heat exchange cavity (11) through pipes, and the heat exchanger is arranged in the heat exchange cavity (11).
7. A fully premixed gas water heater according to any of claims 1-5, characterized in that it further comprises a smoke exhaust pipe (8), said smoke exhaust pipe (8) being arranged at the side of the fume collecting hood (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920826393.XU CN210624954U (en) | 2019-06-03 | 2019-06-03 | Full-premixing gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920826393.XU CN210624954U (en) | 2019-06-03 | 2019-06-03 | Full-premixing gas water heater |
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| Publication Number | Publication Date |
|---|---|
| CN210624954U true CN210624954U (en) | 2020-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920826393.XU Active CN210624954U (en) | 2019-06-03 | 2019-06-03 | Full-premixing gas water heater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260524A (en) * | 2019-06-03 | 2019-09-20 | 华帝股份有限公司 | Fully-premixed gas water heater and control method thereof |
| CN112556183A (en) * | 2020-11-13 | 2021-03-26 | 广东汉普玛节能环保科技有限公司 | Full-premixing condensation gas water heater |
-
2019
- 2019-06-03 CN CN201920826393.XU patent/CN210624954U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260524A (en) * | 2019-06-03 | 2019-09-20 | 华帝股份有限公司 | Fully-premixed gas water heater and control method thereof |
| CN112556183A (en) * | 2020-11-13 | 2021-03-26 | 广东汉普玛节能环保科技有限公司 | Full-premixing condensation gas water heater |
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