CN108036513A - The sectional combustion structure of gas-heating water heater - Google Patents
The sectional combustion structure of gas-heating water heater Download PDFInfo
- Publication number
- CN108036513A CN108036513A CN201810027385.9A CN201810027385A CN108036513A CN 108036513 A CN108036513 A CN 108036513A CN 201810027385 A CN201810027385 A CN 201810027385A CN 108036513 A CN108036513 A CN 108036513A
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- China
- Prior art keywords
- gas
- gas outlet
- combustion
- air inlet
- sectional
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 69
- 239000008236 heating water Substances 0.000 title claims abstract description 15
- 230000005611 electricity Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 70
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 239000000567 combustion gas Substances 0.000 abstract description 12
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 230000006978 adaptation Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 7
- 239000000758 substrate Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
The present invention relates to a kind of sectional combustion structure of gas-heating water heater, including combustion tube, sectional pipe and solenoid valve, the upper end of the sectional pipe is at least provided with two gas outlets, its lower end is equipped with a total air inlet, the combustion tube has at least two relatively independent admittance areas, each admittance area is equipped with an air inlet pipe and multiple nozzles, the air inlet pipe is corresponded with gas outlet and connected, and solenoid valve is at least equipped with a gas outlet, the solenoid valve can control the opening and closing of the gas outlet.The present invention can be effectively reduced minimum output power, adaptation summer inflow temperature is high, the excessively low extreme condition of user's hydraulic pressure, greatly improves the comfort level of domestic water, winter heating room temperature can be also reduced at the same time and reaches the output power after preset temperature, so as to save combustion gas resource.
Description
Technical field
The present invention relates to gas-heating water heater, and in particular to a kind of sectional combustion structure of gas-heating water heater.
Background technology
Fast-selling gas-heating water heater major part main burner only has one section of burning on the market, limits minimum output work
Rate, in actual use, if running into summer inflow temperature height, user's hydraulic pressure is too small, and leaving water temperature can be caused excessive, uses
Family experience is very poor, or even phenomena such as domestic hot-water can not be used；In the winter time during heating, after room temperature reaches design temperature, using more
Small power is kept the temperature, and can further save the energy.To solve this problem, many manufacturers employ combustor section
The structure of formula burning, i.e., burnt using the different spray nozzles fire row on control valve control combustion tube, to reach water heater combusting firepower
Size, improve the accommodation of water heater.Existing above-mentioned control valve is generally controlled using mechanical cone valve, but its structure is too
Complexity, the switch of cone valve are generally provided on water heater face-piece, have impact on the overall appearance of water heater.
The content of the invention
In order to overcome drawbacks described above, the present invention provides a kind of sectional combustion structure of gas-heating water heater, which leads to
Cross control burner nozzle sectional combustion come reach leaving water temperature it is moderate, save the energy beneficial effect.
The present invention in order to solve its technical problem used by technical solution be：
A kind of sectional combustion structure of gas-heating water heater, including combustion tube, sectional pipe and solenoid valve, the sectional pipe
Upper end at least provided with two gas outlets, its lower end is equipped with a total air inlet, and the combustion tube has at least two relatively independent
Admittance area, each admittance area is equipped with an air inlet pipe and multiple nozzles, and the air inlet pipe is corresponded with gas outlet and connected,
And solenoid valve is at least equipped with a gas outlet, the solenoid valve can control the opening and closing of the gas outlet.
Preferably, the sectional pipe is equipped with two gas outlets, respectively the first gas outlet and the second gas outlet, the combustion
Burn pipe there are two admittance areas, be respectively combustion tube main chamber and combustion tube pair chamber, the combustion tube main chamber equipped with first into
Tracheae, the combustion tube pair chamber are equipped with the second air inlet pipe, and first gas outlet is connected with the first air inlet pipe, and described second goes out
Gas port is connected with the second air inlet pipe.
Preferably, the sectional pipe includes cover board and tube body, and first gas outlet and the second gas outlet are arranged on cover board,
The cover board and tube body are fixed by screws, and are equipped with gasket between the two.
Preferably, the tube body is rectangular parallelepiped structure, and total air inlet is connected to the bottom of tube body, first outlet
Mouth and the second gas outlet are located at the arranged on left and right sides of total air inlet respectively.
Preferably, the tubular body is cavity, and for gas circulation, its bottom is corresponding with the first gas outlet
Place offers valve chamber, and the solenoid valve is placed in valve chamber.
Preferably, total air inlet connects gas ratio valve by connecting tube.
The beneficial effects of the invention are as follows：The invention mainly comprises combustion tube, sectional pipe and solenoid valve, combustion tube is divided into more
A independent admittance area, sectional pipe are equipped with the gas outlet identical with admittance area quantity, i.e., each gas outlet with one into
Gas region is connected, and solenoid valve is equipped with gas outlet, by the master control substrate of water heater for heating according to design temperature and into
Coolant-temperature gage difference calculates the output power of demand, the quantity of opens solenoid valve is controlled according to output power, when the output of demand
When power is smaller, only one gas outlet can be controlled open-minded, realize one section of burning of combustion tube；Otherwise all outlets can be opened
Mouthful, realize that combustion tube whole tube section burns, therefore minimum output power can be effectively reduced, summer inflow temperature height is adapted to, is used
The excessively low extreme condition of family hydraulic pressure, greatly improves the comfort level of domestic water, while can also reduce winter heating room temperature
The output power after preset temperature is reached, so as to save combustion gas resource.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the internal structure schematic diagram of the present invention；
Fig. 3 is the explosive view of the present invention；
Fig. 4 is the structure diagram of sectional pipe in the present invention；
Fig. 5 is the explosive view of sectional pipe in the present invention；
In figure：10- combustion tubes, 11- combustion tube main chambers, 12- combustion tube pair chambers, 13- air inlet pipe, 14- nozzles, 15- sealings
Circle, 16- nuts, 20- sectional pipes, 21- cover boards, 22- tube bodies, 23- gaskets, 24- gas outlets, 25- sealing plates, 26- screws,
30- solenoid valves, the total air inlets of 40-, 50- gas ratio valves, 51- connecting tubes.
Embodiment
Below in conjunction with the embodiment of the present invention, the technical solution in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, those of ordinary skill in the art's all other embodiments obtained without making creative work, all
Belong to the scope of protection of the invention.
Embodiment：As shown in Figs. 1-5, the sectional combustion structure of a kind of gas-heating water heater, including combustion tube 10, segmentation
Pipe 20 and solenoid valve 30, the upper end of the sectional pipe 20 are equipped with a total air inlet 40 at least provided with two gas outlets 24, its lower end,
The combustion tube 10 has at least two relatively independent admittance areas, and each admittance area is equipped with an air inlet pipe 13 and multiple sprays
Mouth 14, the air inlet pipe 13 are corresponded with gas outlet 24 and connected, and are at least equipped with solenoid valve 30, institute in a gas outlet 24
The opening and closing of the gas outlet can be controlled by stating solenoid valve 30, and total air inlet 40 connects gas proportion by connecting tube 51
Valve 50, gas ratio valve is the regulating valve of combustion gas and AIR Proportional, by adjusting it, fuel gas buring can be made abundant, saves the energy,
It is good for the environment, the gas ratio valve 50 is fixedly connected by nut 16 with connecting tube 51.Combustion tube 10 is divided in the present invention
For multiple independent admittance areas, sectional pipe 20 is equipped with the gas outlet 24 identical with admittance area quantity, i.e., each gas outlet
It is connected with an admittance area, and a solenoid valve 30 is equipped with gas outlet, during work, combustion gas enters in sectional pipe 20
Afterwards, the admittance area that combustion tube 10 is entered by gas outlet 24 is burnt, by controlling the electromagnetism in gas outlet in the present invention
The unlatching situation of valve 30 controls the admittance area number of burning, is specially the master control substrate of water heater for heating according to design temperature
The output power of demand is calculated with inflow temperature difference, the quantity of opens solenoid valve is controlled according to output power, when demand
When output power is smaller, only one gas outlet can be controlled open-minded, supplied into admittance area corresponding thereto；Otherwise can be with
All gas outlets are opened, realize that combustion tube whole tube section burns, therefore minimum output power can be effectively reduced, adapt to summer
Inflow temperature is high, and the excessively low extreme condition of user's hydraulic pressure greatly improves the comfort level of domestic water, while can also reduce
Winter heating room temperature reaches the output power after preset temperature, so as to save combustion gas resource.
As shown in Figure 4 and Figure 5, the sectional pipe 20 is equipped with two gas outlets 24, is respectively the first gas outlet and second
Gas outlet, the combustion tube 10 have two admittance areas, respectively combustion tube main chamber 11 and combustion tube pair chamber 12, the burning
Pipe main chamber 11 is equipped with the first air inlet pipe, and the combustion tube pair chamber 12 is equipped with the second air inlet pipe, first gas outlet and the
One air inlet pipe connects, and second gas outlet is connected with the second air inlet pipe.In the present embodiment, combustion tube is divided into two-part burning,
Respectively combustion tube main chamber 11 and combustion tube pair chamber 12, are equipped with solenoid valve in the first gas outlet, and in the second gas outlet not
Solenoid valve is set, this is open type gas outlet, and demand is calculated according to design temperature and inflow temperature difference by master control substrate
Output power, if output power in the combustion range of full section, opens battery valve 30, the first gas outlet and the second gas outlet
It can enter for combustion gas, i.e. combustion tube main chamber 11 and combustion tube pair chamber 12 is burnt at the same time；If output power is in half section of combustion
In the range of burning, then solenoid valve 30 is closed, only the second gas outlet enters for combustion gas, that is, only combustion tube pair chamber burns.Institute
Stating sectional pipe 20 includes cover board 21 and tube body 22, and first gas outlet and the second gas outlet are arranged on cover board 21, the cover board
21 are fixedly connected with tube body 22 by screw 26, and are equipped with gasket 23 between the two.Sectional pipe 20 is rectangular box body structure, its
Cover board is respectively arranged on the left side and the right side the first gas outlet and the second gas outlet, and the first air inlet pipe of combustion tube main chamber 11 goes out with first
Gas port, the second air inlet pipe of combustion tube pair chamber 12 and the second gas outlet are all fixed by internal thread and external thread bolt connection, and interface
Place is equipped with sealing ring 15；Total air inlet 40 of its bottom can also use the fixation that is spirally connected with connecting tube 51.
As shown in figure 5, the tube body 22 is rectangular parallelepiped structure, total air inlet 40 is connected to the bottom of tube body 22, institute
State the arranged on left and right sides that the first gas outlet and the second gas outlet are located at total air inlet 40 respectively.The inside of tube body 22 is cavity, with
For gas circulation, 22 bottom of tube body offers valve chamber with the first gas outlet corresponding section, and the solenoid valve 30 is placed in valve chamber
It is interior.The solenoid valve is secured by bolts on the bottom plate of tube body, and sealing ring 15 is equipped between solenoid valve and the bottom plate of tube body,
Through hole is opened up in the corresponding place of 22 bottom plate of tube body and the second gas outlet, the through hole is sealed by sealing plate 25, sealing plate
25 are fixed on the bottom of tube body by screw 26, and are equipped with sealing ring 15 before both.The front end of solenoid valve and the first gas outlet
It is in contact, when solenoid valve no power, the first gas outlet is blocked, therefore combustion tube main chamber does not have combustion gas entrance, does not burn；When
After solenoid valves, the front end of solenoid valve is drawn onto on electromagnetism valve body, so the first gas outlet is opened, combustion gas enters combustion tube
Burning in main chamber.
The operating process of the present invention：In the present embodiment, combustion tube 10 divides to burn for two-part, is respectively combustion tube main chamber 11
With combustion tube pair chamber 12, combustion gas enters sectional pipe 20 by total air inlet 40, and the master control substrate of water heater for heating is according to setting
Temperature and inflow temperature difference calculate the output power of demand, if output power in the combustion range of full section, opens electricity
Pond valve 30, the first gas outlet are opened, and combustion gas respectively enters 11 He of combustion tube main chamber by the first gas outlet and the second gas outlet
Combustion tube pair chamber 12 burns, and realizes the full section burning of combustion tube；If output power in half section of combustion range,
Solenoid valve 30 is closed, the first gas outlet is closed, and combustion gas is only burnt by the second gas outlet into combustion tube pair chamber, is realized
Half section of burning of combustion tube.
It should be pointed out that for those of ordinary skill in the art, without departing from the inventive concept of the premise, may be used also
To make several modifications and improvements, these belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with
Subject to appended claims.
Claims (6)
- A kind of 1. sectional combustion structure of gas-heating water heater, it is characterised in that：Including combustion tube (10), sectional pipe (20) and Solenoid valve (30), the upper end of the sectional pipe (20) are equipped with a total air inlet at least provided with two gas outlets (24), its lower end (40), the combustion tube (10) has at least two relatively independent admittance areas, and each admittance area is equipped with an air inlet pipe (13) correspond and connect with gas outlet (24) with multiple nozzles (14), the air inlet pipe (13), and at least a gas outlet (24) solenoid valve (30) is equipped with, the solenoid valve (30) can control the opening and closing of the gas outlet.
- 2. the sectional combustion structure of gas-heating water heater according to claim 1, it is characterised in that：The sectional pipe (20) two gas outlets (24) are equipped with, are respectively the first gas outlet and the second gas outlet, the combustion tube (10) has two Admittance area, be respectively combustion tube main chamber (11) and combustion tube pair chamber (12), the combustion tube main chamber (11) equipped with first into Tracheae, the combustion tube pair chamber (12) are equipped with the second air inlet pipe, and first gas outlet is connected with the first air inlet pipe, and described Two gas outlets are connected with the second air inlet pipe.
- 3. the sectional combustion structure of gas-heating water heater according to claim 2, it is characterised in that：The sectional pipe (20) cover board (21) and tube body (22) are included, first gas outlet and the second gas outlet are arranged on cover board (21), the cover board (21) it is fixedly connected with tube body (22) by screw (26), and is equipped with gasket (23) between the two.
- 4. the sectional combustion structure of gas-heating water heater according to claim 3, it is characterised in that：The tube body (22) For rectangular parallelepiped structure, total air inlet (40) is connected to the bottom of tube body (22), first gas outlet and the second gas outlet It is located at the arranged on left and right sides of total air inlet (40) respectively.
- 5. the sectional combustion structure of gas-heating water heater according to claim 3, it is characterised in that：The tube body (22) Inside is cavity, and for gas circulation, tube body (22) bottom offers valve chamber, the electricity with the first gas outlet corresponding section Magnet valve (30) is placed in valve chamber.
- 6. the sectional combustion structure of gas-heating water heater according to claim 1, it is characterised in that：Total air inlet (40) gas ratio valve (50) is connected by connecting tube (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810027385.9A CN108036513A (en) | 2018-01-11 | 2018-01-11 | The sectional combustion structure of gas-heating water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810027385.9A CN108036513A (en) | 2018-01-11 | 2018-01-11 | The sectional combustion structure of gas-heating water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108036513A true CN108036513A (en) | 2018-05-15 |
Family
ID=62099204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810027385.9A Withdrawn CN108036513A (en) | 2018-01-11 | 2018-01-11 | The sectional combustion structure of gas-heating water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108036513A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542087A (en) * | 2019-09-12 | 2019-12-06 | 珠海格力电器股份有限公司 | sectional combustion device and gas heating equipment |
| CN110726248A (en) * | 2018-07-16 | 2020-01-24 | 宁波方太厨具有限公司 | Pull valve control method of multi-way electromagnetic valve of gas water heater |
| CN111059567A (en) * | 2018-10-17 | 2020-04-24 | 宁波方太厨具有限公司 | Combustion control method for reducing minimum heat load |
| CN113898949A (en) * | 2021-10-18 | 2022-01-07 | 东莞市艾瑞科热能设备有限公司 | Balanced control method of sectional type combustor, combustor and wall-mounted furnace |
| CN115808022A (en) * | 2022-12-13 | 2023-03-17 | 珠海格力电器股份有限公司 | Gas water heating equipment, sectional combustion control method and device thereof and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2497220Y (en) * | 2001-08-15 | 2002-06-26 | 郑国隆 | Forced exhausting water heater having automatic segment-controlling device |
| CN2811851Y (en) * | 2005-06-17 | 2006-08-30 | 佛山市顺德区万和集团有限公司 | Gas-fired wall-hanging dual-purpose boiler capable of automatically regulating heat load |
| JP2006300438A (en) * | 2005-04-22 | 2006-11-02 | Rinnai Corp | Composite heat source machine |
| CN201891876U (en) * | 2010-11-29 | 2011-07-06 | 福建省江南电器制造有限公司 | Segment combustion air valve body for constant temperature gas water heater |
| CN202083120U (en) * | 2011-04-06 | 2011-12-21 | 陈群 | Fuel gas distributing device for fuel gas heating water heating furnace |
| CN105387613A (en) * | 2015-12-07 | 2016-03-09 | 成都前锋电子有限责任公司 | Sectionalized combustion type gas-fired water heating furnace |
| CN207751185U (en) * | 2018-01-11 | 2018-08-21 | 樱花卫厨（中国）股份有限公司 | The sectional combustion structure of gas-heating water heater |
-
2018
- 2018-01-11 CN CN201810027385.9A patent/CN108036513A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2497220Y (en) * | 2001-08-15 | 2002-06-26 | 郑国隆 | Forced exhausting water heater having automatic segment-controlling device |
| JP2006300438A (en) * | 2005-04-22 | 2006-11-02 | Rinnai Corp | Composite heat source machine |
| CN2811851Y (en) * | 2005-06-17 | 2006-08-30 | 佛山市顺德区万和集团有限公司 | Gas-fired wall-hanging dual-purpose boiler capable of automatically regulating heat load |
| CN201891876U (en) * | 2010-11-29 | 2011-07-06 | 福建省江南电器制造有限公司 | Segment combustion air valve body for constant temperature gas water heater |
| CN202083120U (en) * | 2011-04-06 | 2011-12-21 | 陈群 | Fuel gas distributing device for fuel gas heating water heating furnace |
| CN105387613A (en) * | 2015-12-07 | 2016-03-09 | 成都前锋电子有限责任公司 | Sectionalized combustion type gas-fired water heating furnace |
| CN207751185U (en) * | 2018-01-11 | 2018-08-21 | 樱花卫厨（中国）股份有限公司 | The sectional combustion structure of gas-heating water heater |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110726248A (en) * | 2018-07-16 | 2020-01-24 | 宁波方太厨具有限公司 | Pull valve control method of multi-way electromagnetic valve of gas water heater |
| CN110726248B (en) * | 2018-07-16 | 2021-07-16 | 宁波方太厨具有限公司 | Pull valve control method of multi-way electromagnetic valve of gas water heater |
| CN111059567A (en) * | 2018-10-17 | 2020-04-24 | 宁波方太厨具有限公司 | Combustion control method for reducing minimum heat load |
| CN111059567B (en) * | 2018-10-17 | 2021-10-29 | 宁波方太厨具有限公司 | Combustion control method for reducing minimum heat load of gas water heating device |
| CN110542087A (en) * | 2019-09-12 | 2019-12-06 | 珠海格力电器股份有限公司 | sectional combustion device and gas heating equipment |
| CN113898949A (en) * | 2021-10-18 | 2022-01-07 | 东莞市艾瑞科热能设备有限公司 | Balanced control method of sectional type combustor, combustor and wall-mounted furnace |
| CN113898949B (en) * | 2021-10-18 | 2023-05-26 | 东莞市艾瑞科热能设备有限公司 | Balanced control method of sectional type burner, burner and wall-mounted furnace |
| CN115808022A (en) * | 2022-12-13 | 2023-03-17 | 珠海格力电器股份有限公司 | Gas water heating equipment, sectional combustion control method and device thereof and storage medium |
| CN115808022B (en) * | 2022-12-13 | 2024-05-14 | 珠海格力电器股份有限公司 | Gas water heating equipment, sectional combustion control method and device thereof and storage medium |
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Application publication date: 20180515 |