CN204227677U - Gas-heating water heater - Google Patents
Gas-heating water heater Download PDFInfo
- Publication number
- CN204227677U CN204227677U CN201420651938.5U CN201420651938U CN204227677U CN 204227677 U CN204227677 U CN 204227677U CN 201420651938 U CN201420651938 U CN 201420651938U CN 204227677 U CN204227677 U CN 204227677U
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- water heater
- cooling water
- heating water
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Abstract
A kind of gas-heating water heater, it comprises burner, main heat exchanger, burner is arranged on the below of main heat exchanger, burner comprises fire row, ignition electrode, feedback pin, ignition electrode, feedback pin are arranged on the periphery of fire row, technical characteristics is that it also comprises cooling water pipe, and fire row is provided with the through hole that Cooling Water pipe passes, and cooling water pipe is through through hole and fire row close contact.Have and effectively can reduce discharged nitrous oxides, reduce the features such as air pollution when gas-heating water heater works.
Description
Technical field
The utility model relates to a kind of gas-heating water heater, particularly a kind of gas-heating water heater of low-nitrogen oxide discharging.
Background technology
Along with domestic PM2.5 is day by day serious, the attention rate of people to low vacancy pollution is more and more higher, and new policy is put into effect gradually with the discharge of control polluted articles in cities in China, and regulation discharged nitrous oxides will reach below 70mg.kW.h and just can come into the market.The conventional wall-hung boiler that large-scale popularization in the market uses generally only reaches 3 grades of discharge standards, conventional B-grade condensation wall-hung boiler condensation heat efficiency is generally 102% ~ 104%, discharged nitrous oxides is generally at 120 ~ 140mg.kW.h, therefore in prior art, the discharged nitrous oxides of gas-heating water heater is higher, causes the use that there is gas-heating water heater to cause the defects such as larger pollution to environment.For overcoming these defects, gas-heating water heater is improved.
Summary of the invention
Technical problem to be solved in the utility model to provide a kind of gas-heating water heater, and it can reduce discharged nitrous oxides effectively, reduces air pollution during gas-heating water heater work.
The technical scheme that the utility model solves the employing of its technical problem is:
It comprises burner, main heat exchanger, burner is arranged on the below of main heat exchanger, burner comprises fire row, ignition electrode, feedback pin, ignition electrode, feedback pin are arranged on the periphery of fire row, it also comprises cooling water pipe, fire row is provided with the through hole that Cooling Water pipe passes, and cooling water pipe is through through hole and fire row close contact.
The delivery port of cooling water pipe is communicated with the heat exchange water inlet of main heat exchanger.
Cooling water pipe is U-tube, and fire row is provided with the through hole that two Cooling Water pipes pass.
It also comprises steady flame plate washer, and steady flame plate washer is arranged on fire row last week.
Through hole in fire row is provided with flange, flange and cooling water pipe close contact.
Fire row comprises premix portion, mixing unit, fire plate, and the premix chamber in premix portion is communicated with the hybrid chamber in mixing unit, and premix portion, the plate that fires are fixed in mixing unit by pressing.
The height in premix portion is 70mm ~ 90mm.
Mixing unit is that copper material, copper alloy, aluminium or aluminium alloy are made.
Premix portion is that galvanized sheet or alclad sheet are made.
It also comprises air jet pipe, and air jet pipe is provided with the nozzle corresponding with fire row, and the aperture of nozzle is 0.7mm ~ 1.0mm.
The utility model compares produced beneficial effect with background technology:
1, because the utility model adopts cooling water pipe, fire row is provided with the through hole that Cooling Water pipe passes, cooling water pipe passes the structure of through hole and fire row close contact, the water flow through in cooling water pipe can reduce burner surface and combustion flame temperature, thus minimizing formation of nitrogen oxides, therefore it can reduce discharged nitrous oxides effectively, reduce air pollution during gas-heating water heater work.
Accompanying drawing illustrates: Fig. 1 is the structural representation of burner 1.
Fig. 2 is the structural representation of fire row 11 in Fig. 1.
Fig. 3 is a kind of structural representation of the present utility model.
Fig. 4 is another kind of structural representation of the present utility model.
Detailed description of the invention:
Embodiment one, shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, the present embodiment comprises burner 1, main heat exchanger 2, burner 1 is arranged on the below of main heat exchanger 2, burner comprises fire row 11, ignition electrode 12, feedback pin 13, cooling water pipe 14, ignition electrode 12, feedback pin 13 are arranged on the periphery of fire row 11, and fire row 11 is provided with the through hole 111 that Cooling Water pipe 14 passes, and cooling water pipe 14 is through through hole 111 and fire row 11 close contact.The water flow through in cooling water pipe 14 can reduce burner 2 surface and combustion flame temperature, thus reduces formation of nitrogen oxides.
The delivery port 141 of cooling water pipe 14 is communicated with the heat exchange water inlet of main heat exchanger 2, and the water inlet 142 of cooling water pipe 14 is communicated with the delivery port of water pump.
Cooling water pipe 14 can be U-tube, and fire row 11 is provided with the through hole 111 that two Cooling Water pipes pass.U-tube defines a water inlet pipe and an outlet pipe on burner 1, and two pipes carry out heat exchange, makes heat transfer effect better, has good effect to the temperature reducing burner 2 surface.
Can also set up steady flame plate washer 15, steady flame plate washer 15 is arranged on fire row 11 last week, and steady flame plate washer 15 is conducive to stabilizing the flame.
Through hole 111 place in fire row 11 can be provided with flange, flange and cooling water pipe 14 close contact, and flange effectively can increase fire row 11 and the contact area of cooling water pipe 14, is conducive to improving heat transfer effect.
Fire row comprises premix portion 112, mixing unit 113, fire plate 114, and the premix chamber in premix portion 112 is communicated with the hybrid chamber in mixing unit 113, and premix portion 112, the plate 114 that fires are fixed in mixing unit 113 by pressing.Fire row is divided into three component combinations to form, is conducive to selecting different materials respectively according to the function of three parts, to improve the correlated performance of fire row.
The height in premix portion 112 is 70mm ~ 90mm, and the premix chamber in premix portion 112 is longer than the premix chamber of fire row in prior art, is conducive to the premixing effect improving combustion gas and air, is conducive to fuel gas buring more abundant.
Mixing unit 113 is made for copper material, copper alloy, aluminium or aluminium alloy, especially selects the metal material of good heat conductivity, is conducive to the water passed to by the heat on burner 1 in cooling water pipe 14.
Premix portion 112 makes for galvanized sheet or alclad sheet, is conducive to the material cost reducing burner 1.
The plate 114 that fires can adopt resistant to elevated temperatures stainless steel to make, and is conducive to the resistance to elevated temperatures promoting burner 1 top.
Burner 1 can arrange air jet pipe 16, air jet pipe 16 with enter Gas Pipe and be communicated with, air jet pipe 16 is provided with the nozzle corresponding with fire row, the aperture of nozzle is 0.7mm ~ 1.0mm, the aperture of nozzle of the prior art is 1.1 ~ 1.4mm, and the nozzle bore in the utility model is less than prior art, so the flow velocity that combustion gas sprays from nozzle is faster, being conducive to the more primary airs of injection carries out combustion-supporting, has positive impact to the burning completely of combustion gas.
Operationally, burner 1 ignition, burner is in the chamber combustion of heat exchanger 2, and in high-temperature flue gas heating heat exchanger 2, the water of flowing is with hot water preparing for gas-heating water heater in the present embodiment.
Combustion gas is first from nozzle ejection, and injection primary air enters premix portion 112 and mixes.Because nozzle bore is less than of the prior art, so the velocity ratio height of the prior art after combustion gas ejection, can the more primary air of injection, when primary air ratio is when 0.5 ~ 1.5 within the scope of this, primary air ratio will successively decrease gradually higher than nitrogen oxide emission after 0.5.
Because premix portion 112 is than length of the prior art, so make combustion gas and air mixing more fully, there is positive role to reduction nitrogen oxide emission.
The plate 114 that fires adopts the total fire hole area larger than prior art, and fire row 11 is uprightly arranged, be conducive to the flow resistance reducing mist, the primary air amount of combustion gas injection is finally allowed greatly to increase, increase air and can dilute flue gas, by reducing the rear high-temperature flue-gas produced of burning further, be conducive to the generation suppressing nitrogen oxide.
The utility model, by setting up cooling water pipe 14 and improving fire row 11, has good technique effect in reduction nitrogen oxide.
Embodiment two, shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 4, the present embodiment comprises burner 1, main heat exchanger 2, condensing heat exchanger, burner 1 is arranged on the below of main heat exchanger 2, burner comprises fire row 11, ignition electrode 12, feedback pin 13, cooling water pipe 14, ignition electrode 12, feedback pin 13 are arranged on the periphery of fire row, and fire row 11 is provided with the through hole 111 that Cooling Water pipe 14 passes, and cooling water pipe 14 is through through hole 111 and fire row 11 close contact.The water flow through in cooling water pipe 14 can reduce burner 2 surface and combustion flame temperature, thus reduces formation of nitrogen oxides.
The delivery port 141 of cooling water pipe 14 is communicated with the heat exchange water inlet of main heat exchanger 2, and the water inlet 142 of cooling water pipe 14 is communicated with the delivery port of condensing heat exchanger.
Structure, the course of work of the burner 1 in the present embodiment are identical with embodiment one with operation principle, do not repeat them here.
Condensing heat exchanger is set up, composition condensation gas-heating water heater in the present embodiment.Cold water first flows through condensing heat exchanger, then flows through cooling water pipe 14, then flows into main heat exchanger 2, be heated into flow out after hot water for.
For premixed flame, when primary air ratio is increased to 1.5 from 0.5, nitrogen oxide emission will reduce to below 70ppm from 150ppm.Exceed stoichiometric proportion to increase air later and will dilute flue gas, make the flue-gas temperature of burning drop to 1200 ° of C from 1900 ° of C, significantly temperature will reduce the generation of nitrogen oxide greatly.Discharged nitrous oxides in the present embodiment can reach 30 ~ 50mg.kW.h, and condensation heat efficiency can rise to 106% ~ 108%.
The utility model, by setting up cooling water pipe 14 and improving fire row 11, has good technique effect in reduction nitrogen oxide.The water flow through in cooling water pipe can reduce burner surface and combustion flame temperature, thus reduces formation of nitrogen oxides, therefore it can reduce discharged nitrous oxides effectively, reduces the pollution to air when gas-heating water heater works.
Claims (10)
1. a gas-heating water heater, it comprises burner (1), main heat exchanger (2), burner (1) is arranged on the below of main heat exchanger (2), burner comprises fire row (11), ignition electrode (12), feedback pin (13), ignition electrode (12), feedback pin (13) are arranged on the periphery of fire row, it is characterized in that it also comprises cooling water pipe (14), fire row (11) is provided with the through hole (111) that Cooling Water pipe (14) passes, and cooling water pipe (14) is through through hole (111) and fire row (11) close contact.
2. gas-heating water heater according to claim 1, is characterized in that the delivery port (141) of described cooling water pipe (14) is communicated with the heat exchange water inlet of main heat exchanger (2).
3. gas-heating water heater according to claim 2, it is characterized in that described cooling water pipe (14) is U-tube, fire row (11) is provided with the through hole (111) that two Cooling Water pipes pass.
4. gas-heating water heater according to claim 3, it is characterized in that it also comprises steady flame plate washer (15), steady flame plate washer (15) is arranged on fire row (11) last week.
5. gas-heating water heater according to claim 4, is characterized in that through hole (111) place in described fire row (11) is provided with flange, flange and cooling water pipe (14) close contact.
6. the gas-heating water heater according to any one of Claims 1 to 5, it is characterized in that described fire row comprises premix portion (112), mixing unit (113), the plate that fires (114), premix chamber in premix portion (112) is communicated with the hybrid chamber in mixing unit (113), and premix portion (112), the plate that fires (114) are fixed on by pressing in mixing unit (113).
7. gas-heating water heater according to claim 6, is characterized in that the height in described premix portion is 70mm ~ 90mm.
8. gas-heating water heater according to claim 7, is characterized in that described mixing unit (113) is copper material, copper alloy, aluminium or aluminium alloy are made.
9. gas-heating water heater according to claim 8, is characterized in that described premix portion (112) makes for galvanized sheet or alclad sheet.
10. gas-heating water heater according to claim 9, it is characterized in that it also comprises air jet pipe (16), air jet pipe (16) is provided with the nozzle corresponding with fire row, and the aperture of nozzle is 0.7mm ~ 1.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420651938.5U CN204227677U (en) | 2014-11-05 | 2014-11-05 | Gas-heating water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420651938.5U CN204227677U (en) | 2014-11-05 | 2014-11-05 | Gas-heating water heater |
Publications (1)
| Publication Number | Publication Date |
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| CN204227677U true CN204227677U (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420651938.5U Active CN204227677U (en) | 2014-11-05 | 2014-11-05 | Gas-heating water heater |
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| CN (1) | CN204227677U (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996563A (en) * | 2017-02-28 | 2017-08-01 | 杨斌 | A kind of water cooling low NO |
| CN107270289A (en) * | 2017-07-10 | 2017-10-20 | 广东万和新电气股份有限公司 | A kind of burner and gas heater |
| JP2017219300A (en) * | 2016-06-02 | 2017-12-14 | リンナイ株式会社 | Heat source machine |
| CN108006946A (en) * | 2016-12-30 | 2018-05-08 | 芜湖美的厨卫电器制造有限公司 | Gas heater and gas heater method for controlling combustion |
| CN108443880A (en) * | 2018-05-15 | 2018-08-24 | 芜湖美的厨卫电器制造有限公司 | Distributor and apply its burner and water heater |
| CN109404906A (en) * | 2017-08-16 | 2019-03-01 | 芜湖美的厨卫电器制造有限公司 | Burner and gas heater |
| CN109404904A (en) * | 2017-08-16 | 2019-03-01 | 芜湖美的厨卫电器制造有限公司 | Burner and gas heater |
| CN109579267A (en) * | 2018-12-17 | 2019-04-05 | 成都前锋电子有限责任公司 | A kind of low NO with the double induction systems of dual ignition |
| CN109654467A (en) * | 2019-01-18 | 2019-04-19 | 广东念智节能科技有限公司 | A kind of combustion and steam occurrence of equipment |
| CN109764529A (en) * | 2018-11-30 | 2019-05-17 | 威能(无锡)供热设备有限公司 | Gas and hot water equipment |
| WO2019140861A1 (en) * | 2018-01-16 | 2019-07-25 | 芜湖美的厨卫电器制造有限公司 | Flame spreader as well as burner and water heater using same |
| WO2019218716A1 (en) * | 2018-05-15 | 2019-11-21 | 芜湖美的厨卫电器制造有限公司 | Water pipe connection structure and burner |
| CN111426068A (en) * | 2020-05-18 | 2020-07-17 | 珠海格力电器股份有限公司 | Combustor and water heater |
| CN107461922B (en) * | 2016-06-02 | 2020-12-18 | 林内株式会社 | Heat source machine |
| EP3795922A4 (en) * | 2018-05-15 | 2022-04-27 | Wuhu Midea Kitchen And Bath Appliances Mfg. Co, Ltd. | Distributor and combustor and water heater having same |
-
2014
- 2014-11-05 CN CN201420651938.5U patent/CN204227677U/en active Active
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017219300A (en) * | 2016-06-02 | 2017-12-14 | リンナイ株式会社 | Heat source machine |
| CN107461922B (en) * | 2016-06-02 | 2020-12-18 | 林内株式会社 | Heat source machine |
| CN108006946A (en) * | 2016-12-30 | 2018-05-08 | 芜湖美的厨卫电器制造有限公司 | Gas heater and gas heater method for controlling combustion |
| CN106996563A (en) * | 2017-02-28 | 2017-08-01 | 杨斌 | A kind of water cooling low NO |
| CN107270289A (en) * | 2017-07-10 | 2017-10-20 | 广东万和新电气股份有限公司 | A kind of burner and gas heater |
| CN109404904A (en) * | 2017-08-16 | 2019-03-01 | 芜湖美的厨卫电器制造有限公司 | Burner and gas heater |
| CN109404906A (en) * | 2017-08-16 | 2019-03-01 | 芜湖美的厨卫电器制造有限公司 | Burner and gas heater |
| WO2019140861A1 (en) * | 2018-01-16 | 2019-07-25 | 芜湖美的厨卫电器制造有限公司 | Flame spreader as well as burner and water heater using same |
| EP3795922A4 (en) * | 2018-05-15 | 2022-04-27 | Wuhu Midea Kitchen And Bath Appliances Mfg. Co, Ltd. | Distributor and combustor and water heater having same |
| WO2019218716A1 (en) * | 2018-05-15 | 2019-11-21 | 芜湖美的厨卫电器制造有限公司 | Water pipe connection structure and burner |
| CN108443880B (en) * | 2018-05-15 | 2024-03-22 | 芜湖美的厨卫电器制造有限公司 | Fire distributor and combustor and water heater using same |
| CN108443880A (en) * | 2018-05-15 | 2018-08-24 | 芜湖美的厨卫电器制造有限公司 | Distributor and apply its burner and water heater |
| CN109764529A (en) * | 2018-11-30 | 2019-05-17 | 威能(无锡)供热设备有限公司 | Gas and hot water equipment |
| CN109764529B (en) * | 2018-11-30 | 2021-03-02 | 威能(无锡)供热设备有限公司 | Gas water heating equipment |
| CN109579267A (en) * | 2018-12-17 | 2019-04-05 | 成都前锋电子有限责任公司 | A kind of low NO with the double induction systems of dual ignition |
| CN109654467A (en) * | 2019-01-18 | 2019-04-19 | 广东念智节能科技有限公司 | A kind of combustion and steam occurrence of equipment |
| CN111426068A (en) * | 2020-05-18 | 2020-07-17 | 珠海格力电器股份有限公司 | Combustor and water heater |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |