CN110030738A - A kind of method for controlling combustion of gas heater - Google Patents
A kind of method for controlling combustion of gas heater Download PDFInfo
- Publication number
- CN110030738A CN110030738A CN201810026387.6A CN201810026387A CN110030738A CN 110030738 A CN110030738 A CN 110030738A CN 201810026387 A CN201810026387 A CN 201810026387A CN 110030738 A CN110030738 A CN 110030738A
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- China
- Prior art keywords
- wind pressure
- blower
- controller
- pressure sensor
- gas heater
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Classifications
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- 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
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- 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)
- Regulation And Control Of Combustion (AREA)
Abstract
The present invention relates to a kind of method for controlling combustion of gas heater, wherein gas heater includes burner, proportioning valve, blower and controller, it is characterized by: wind pressure sensor is arranged in the exhaust ports in gas heater, wind pressure sensor is also connect with controller, is preset in the controller and is preserved wind pressure benchmark database and rotation speed of fan compensation database.Compared with prior art, the present invention has the advantages that by the external world without wind pressure when, the detected value of blower wind pressure sensor under different rotating speeds is pre-saved as wind pressure a reference value, by blower in different reference rotation speeds, extraneous when having different wind pressure values, blower need the speed considerations amount adjusted also to pre-save, influence of the wind pressure that can preferably avoid blower from generating to wind pressure sensor detected value, the adjustment of rotation speed of fan is more accurately controlled simultaneously, control method is more accurate.
Description
Technical field
The present invention relates to a kind of method for controlling combustion of gas heater.
Background technique
Domestic gas-fired water heater will face many uncontrollable factors during use, fluctuation, combustion such as flow of inlet water
It burns external wind caused by the difference of gas purity, the air pressure of burning gases be different, the external world blows and presses through big etc., these factors are equal
It may influence the temperature persistance of gas heater or gas heater is caused to can not work normally.Wherein external wind, which presses through, makes greatly
At machine can not normal combustion and the problem of bringing, becomes increasingly conspicuous, such as the high-rise buildings in coastal cities, water heater air outlet warp
Often have very big wind-force, after wind-force reaches some strength water heater will occur ignition point not or be burning when it is unexpected
The problems such as blowing-out.These problems decline the accommodative ability of environment of domestic gas-fired water heater.
The workflow of conventional domestic gas-fired water heater are as follows: as long as guaranteeing there is combustion gas and air in combustion chamber when normal combustion
Carry out according to a certain percentage mixing can combustion heating, air blows in combustion chamber by blower, and fuel gas is by Proportional Valve-controlled
System is sent to combustion chamber, air and fuel gas mixing after-combustion in the combustion chamber, and the exhaust gas after burning is by combustion gas warm
Gas outlet discharge at the top of hydrophone, if external wind presses through greatly at this time, extraneous air will be fallen in combustion chamber from air outlet
Fill, the proportion of burn at this time indoor air and imflammable gas change cause ignition point not or burning in it is flame-out suddenly
Phenomenon.
To solve the above-mentioned problems, the existing gas heater with wind loading rating is generally by gas heater
The detection that wind pressure sensor carries out wind pressure is added at exhaust outlet, when wind pressure sensor detects wind pressure value, is just improved blower and is turned
Speed, it is linear between the numerical value that wherein rotation speed of fan improves and the size of external world's wind pressure data.And in gas heater, by
It is different in the installation site of blower, the mode of air is sent into combustion chamber generally by blowing-type and air-draft-type；In blowing-type, wind
Machine is mounted on mostly below burner, the air outlet and combustion chamber of blower and the blowing feeding sky into burner combustion room
Gas；In air-draft-type, blower is mounted on mostly above burner, the air inlet and combustion chamber of blower, to combustion chamber exhausting with
Outside air is set to enter combustion chamber；It is in above-mentioned control method and inaccurate, especially for lower blowing-type blower, even if external nothing
Wind pressure, since blower is being run, wind pressure sensor itself is also to be able to detect that certain wind pressure value, in addition, rotation speed of fan
Linear this control method is also inaccurate between the numerical value of raising and the size of extraneous wind pressure data, should increase on earth
How many accurate wind resistances of ability, and can not clearly learn.
Summary of the invention
The technical problem to be solved by the present invention is to for the above-mentioned prior art provide it is a kind of can the external world have wind pressure when
The method for controlling combustion for the gas heater with wind loading rating that burner will not be blown out.
The technical scheme of the invention to solve the technical problem is: a kind of Combustion System side of gas heater
Method, wherein gas heater includes the burner with combustion chamber, for controlling the burning Indoor Combustion gas for entering burner
How many proportioning valves, it is that air outlet is connected to combustion chamber air intake vent, for be blown into combustion chamber air and control be blown into air
How many blowers, the controller being connect with proportioning valve and blower, it is characterised in that: in the air outlet or combustion chamber air intake vent of blower
Place's setting wind pressure sensor, wind pressure sensor also connect with controller, preset in the controller and preserve wind pressure reference data
Library is equipped in the wind pressure benchmark database in extraneous calm pressure, wind pressure sensor detects when blower is in different rotating speeds
Wind pressure a reference value, after lighting a fire successfully, the controller carries out Combustion System as follows:
Step 1, controller obtain current wind pressure detected value by the data of wind pressure sensor real-time measurement；
Step 2 is inquired and is obtained in current blower in conjunction with wind pressure benchmark database according to the actual speed of current blower
Wind pressure a reference value in the case of actual speed；
The wind pressure a reference value that step 3, the current wind pressure detected value for obtaining step 1 are obtained with step 2 is subtracted each other, if the two
Difference is greater than preset value M, then controller control blower reduces revolving speed, then return step 1；Otherwise 4 are entered step；
If the current wind pressure detected value that step 4, step 1 obtain is less than the wind pressure benchmark that step 2 obtains plus preset value M
Value, then controller control blower improves revolving speed, then return step 1；Otherwise, controller control blower continues according to current rotating speed
Operation.
Preferably, the preset value M is 13~17Pa.
Compared with the prior art, the advantages of the present invention are as follows: when by the external world without wind pressure, blower wind pressure under different rotating speeds is passed
The detected value of sensor is pre-saved as wind pressure a reference value, and when the external world has wind pressure to occur, the measurement of wind pressure sensor
Value can become smaller, and need to improve rotation speed of fan at this time to resist extraneous wind pressure, as rotation speed of fan increases the measurement of wind pressure sensor
Value can slowly become larger, when returning to reference value without wind pressure originally blower there is no need to continue to compensate for, it is this with no wind pressure when
The a reference value of wind pressure sensor Wind-Pressure Resistance control can be thus achieved as the reference value of Wind-Pressure Resistance, and control mode simply has
Effect.
Detailed description of the invention
Fig. 1 is gas heater structural schematic diagram in the embodiment of the present invention.
Fig. 2 is gas heater method for controlling combustion flow chart in the embodiment of the present invention.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
Gas heater as described in Figure 1, including the burner 2 with combustion chamber 1, for controlling the combustion for entering burner
Burn the how many proportioning valve 3 of Indoor Combustion gas, air outlet and combustion chamber, for being blown into air into combustion chamber and controlling
It is blown into the how many blower 4 of air, side on the burner is arranged in the controller (not shown) connecting with proportioning valve 3, blower 4
The exhaust outlet 6 of gas gathering mask 5 with exhaust outlet, gas gathering mask is in communication with the outside, and is provided with wind pressure sensor at the air outlet of blower 4
7, wind pressure sensor is also connect with controller.
It is preset in the controller and preserves wind pressure benchmark database, be equipped in the wind pressure benchmark database extraneous calm
In the case of pressure, the wind pressure a reference value that blower wind pressure sensor in different rotating speeds detects, wind pressure benchmark database can be in reality
It tests interior to measure in advance, when guaranteeing the external world without wind pressure, blower is made to be in different revolving speeds, record wind pressure sensing respectively
The wind pressure value that device measures, as wind pressure a reference value.
After lighting a fire successfully, the controller carries out Combustion System as follows, shown in Figure 2:
Step 1, controller obtain current wind pressure detected value by the data of wind pressure sensor real-time measurement；
Step 2 is inquired and is obtained in current blower in conjunction with wind pressure benchmark database according to the actual speed of current blower
Wind pressure a reference value in the case of actual speed；
The wind pressure a reference value that step 3, the current wind pressure detected value for obtaining step 1 are obtained with step 2 is subtracted each other, if the two
Difference is greater than preset value M, then controller control blower reduces revolving speed, then return step 1；Otherwise 4 are entered step；
If the current wind pressure detected value that step 4, step 1 obtain is less than the wind pressure benchmark that step 2 obtains plus preset value M
Value, then controller control blower improves revolving speed, then return step 1；Otherwise, controller control blower continues according to current rotating speed
Operation.
In the present embodiment, the preset value M is 15Pa.
Claims (2)
1. a kind of method for controlling combustion of gas heater, wherein gas heater includes the burner with combustion chamber, is used for
Control enters the how many proportioning valve of burning Indoor Combustion gas of burner, that air outlet is connected to combustion chamber air intake vent, be used for
It is blown into air into combustion chamber and controls and is blown into the how many blower of air, the controller connecting with proportioning valve and blower, feature
It is: wind pressure sensor is set at the air outlet or combustion chamber air intake vent of blower, wind pressure sensor is also connect with controller, institute
It states to preset in controller and preserves wind pressure benchmark database, be equipped in the wind pressure benchmark database in extraneous calm pressure,
The wind pressure a reference value that blower wind pressure sensor in different rotating speeds detects, after lighting a fire successfully, the controller passes through as follows
Step carries out Combustion System:
Step 1, controller obtain current wind pressure detected value by the data of wind pressure sensor real-time measurement；
Step 2 inquires in conjunction with wind pressure benchmark database according to the actual speed of current blower and obtains the reality in current blower
Wind pressure a reference value under speed conditions；
The wind pressure a reference value that step 3, the current wind pressure detected value for obtaining step 1 are obtained with step 2 is subtracted each other, if the two difference
Greater than preset value M, then controller control blower reduces revolving speed, then return step 1；Otherwise 4 are entered step；
If the current wind pressure detected value that step 4, step 1 obtain is less than the wind pressure a reference value that step 2 obtains plus preset value M,
Then controller control blower improves revolving speed, then return step 1；Otherwise, controller controls blower according to current rotating speed after reforwarding
Row.
2. the method for controlling combustion of gas heater according to claim 1, it is characterised in that: the preset value M is 13
~17Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810026387.6A CN110030738B (en) | 2018-01-11 | 2018-01-11 | Combustion control method of gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810026387.6A CN110030738B (en) | 2018-01-11 | 2018-01-11 | Combustion control method of gas water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110030738A true CN110030738A (en) | 2019-07-19 |
| CN110030738B CN110030738B (en) | 2021-05-18 |
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ID=67234328
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810026387.6A Active CN110030738B (en) | 2018-01-11 | 2018-01-11 | Combustion control method of gas water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110030738B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425744A (en) * | 2019-07-20 | 2019-11-08 | 万家乐热能科技有限公司 | A kind of adaptive fully pre-mixing gas combustion water heater for heating wind pressure control system and control method |
| CN110953731A (en) * | 2019-12-30 | 2020-04-03 | 重庆海尔热水器有限公司 | Wind pressure control method and device, gas water heater and storage medium |
| CN111578523A (en) * | 2020-04-30 | 2020-08-25 | 广东万和新电气股份有限公司 | Water heater wind pressure value adjusting method and device, computer equipment and storage medium |
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| JPH04155151A (en) * | 1990-10-18 | 1992-05-28 | Noritz Corp | Freezing prevention device in indoor installation, forced exhaustion type combustion apparatus |
| CN202158666U (en) * | 2011-07-07 | 2012-03-07 | 海尔集团公司 | Internal pressure feedback regulation system of gas water heater |
| CN103604207A (en) * | 2013-11-08 | 2014-02-26 | 威能(无锡)供热设备有限公司 | Gas water heating equipment with reverse air resisting capability |
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| CN106225249A (en) * | 2016-08-31 | 2016-12-14 | 芜湖美的厨卫电器制造有限公司 | Gas heater and safety control system thereof and method |
| CN106766220A (en) * | 2016-12-20 | 2017-05-31 | 广东万家乐燃气具有限公司 | A kind of gas water heater control system of air quantity self adaptation |
| CN206504456U (en) * | 2017-02-15 | 2017-09-19 | 中山市恒乐电器有限公司 | A kind of strong drum-type fully pre-mixing gas combustion water heater |
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2018
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04155151A (en) * | 1990-10-18 | 1992-05-28 | Noritz Corp | Freezing prevention device in indoor installation, forced exhaustion type combustion apparatus |
| CN202158666U (en) * | 2011-07-07 | 2012-03-07 | 海尔集团公司 | Internal pressure feedback regulation system of gas water heater |
| CN103604207A (en) * | 2013-11-08 | 2014-02-26 | 威能(无锡)供热设备有限公司 | Gas water heating equipment with reverse air resisting capability |
| CN104729101A (en) * | 2015-01-26 | 2015-06-24 | 艾欧史密斯(中国)热水器有限公司 | Combustion control system for gas water heater or wall-hanging stove and control method thereof |
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| CN106766220A (en) * | 2016-12-20 | 2017-05-31 | 广东万家乐燃气具有限公司 | A kind of gas water heater control system of air quantity self adaptation |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425744A (en) * | 2019-07-20 | 2019-11-08 | 万家乐热能科技有限公司 | A kind of adaptive fully pre-mixing gas combustion water heater for heating wind pressure control system and control method |
| CN110425744B (en) * | 2019-07-20 | 2023-11-24 | 万家乐热能科技有限公司 | Wind pressure control system and control method for full-premix gas heating water heater |
| CN110953731A (en) * | 2019-12-30 | 2020-04-03 | 重庆海尔热水器有限公司 | Wind pressure control method and device, gas water heater and storage medium |
| CN111578523A (en) * | 2020-04-30 | 2020-08-25 | 广东万和新电气股份有限公司 | Water heater wind pressure value adjusting method and device, computer equipment and storage medium |
| CN111578523B (en) * | 2020-04-30 | 2021-11-09 | 广东万和新电气股份有限公司 | Water heater wind pressure value adjusting method and device, computer equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110030738B (en) | 2021-05-18 |
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