CN107525281A - A kind of burnt gas wall hanging furnace temperature control method of water and system - Google Patents
A kind of burnt gas wall hanging furnace temperature control method of water and system Download PDFInfo
- Publication number
- CN107525281A CN107525281A CN201710930066.4A CN201710930066A CN107525281A CN 107525281 A CN107525281 A CN 107525281A CN 201710930066 A CN201710930066 A CN 201710930066A CN 107525281 A CN107525281 A CN 107525281A
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- China
- Prior art keywords
- water
- temperature
- carrying capacity
- water temperature
- wall hanging
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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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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
Abstract
The invention discloses a kind of burnt gas wall hanging furnace temperature control method of water, it includes water-carrying capacity detecting step, water temperature detecting step and gas ratio valve regulating step, in the water-carrying capacity detecting step, current water-carrying capacity is detected, and judge whether user uses water according to current water-carrying capacity；In the water temperature detecting step, when detecting user's water, current water temperature is detected, and calculate the temperature difference of current water temperature and the target water temperature of user；In the gas ratio valve regulating step, according to the temperature difference and current water-carrying capacity come regulating gas ratio valve opening.The burnt gas wall hanging furnace temperature control method of water of the present invention has the advantages of temperature control is accurate.The invention also discloses a kind of burnt gas wall hanging furnace water temperature control system.
Description
Technical field
The present invention relates to burnt gas wall hanging furnace field, more particularly to a kind of burnt gas wall hanging furnace temperature control method of water and system.
Background technology
Wall-hung boiler divides according to envelop of function, can be divided into single heating-type and heating/hot water supply type.
For dual-purpose type burnt gas wall hanging furnace, the comfort of domestic hot-water is most important, the stability of water temperature, quickly goes out
The functions such as hot water are directed to the control to water temperature, the actual water temperature that traditional burnt gas wall hanging furnace detects according to sensor and set
Water temperature is determined to control the aperture of proportioning valve, so as to play a part of adjusting water temperature.But temperature difference demand it is identical when, different current
Required heat is different under amount, and this results in meeting when hot water of traditional wall-hung boiler under different user difference water-carrying capacity uses
There is certain temperature fluctuation, it is necessary to which longer time reaches stable design temperature.Once and occur current during use
Amount fluctuation, will result in the secondary undulation again of water temperature.
Traditional burnt gas wall hanging furnace due to can only according to the temperature difference of actual water temperature and set water temperature come regulating gas proportioning valve,
The hysteresis quality and the hysteresis quality of ratio valve regulation detected along with water temperature, often when ratio valve opening makes respective change,
Actual condition has changed to other conditions again, causes temperature control inaccurate.
The content of the invention
The purpose of the present invention is in view of the above-mentioned drawbacks of the prior art, hot water can more accurately be controlled by providing one kind
The burnt gas wall hanging furnace temperature control method of water and system of temperature.
In the embodiment of the present invention, there is provided a kind of burnt gas wall hanging furnace temperature control method of water, it includes：
Water-carrying capacity detecting step：Current water-carrying capacity is detected, and judges whether user uses water according to current water-carrying capacity；
Water temperature detecting step：When detecting user's water, current water temperature is detected, and calculates current water temperature and the target of user
The temperature difference of water temperature；
Gas ratio valve regulating step：According to the temperature difference and current water-carrying capacity come regulating gas ratio valve opening.
In the embodiment of the present invention, gas proportion valve opening and temperature difference data and water have been preset in the burnt gas wall hanging furnace
The adjustment function of the relation of flow.
In the embodiment of the present invention, in the water temperature detecting step, by detecting whether current water-carrying capacity reaches setting
Threshold value judges whether the user with water.
In the embodiment of the present invention, in the gas ratio valve regulating step, pass through the real-time monitoring number to water-carrying capacity, water temperature
According to gas proportion valve opening is adjusted in real time.
In the embodiment of the present invention, in the gas ratio valve regulating step, according to water-carrying capacity and current water temperature and user
The temperature difference of target water temperature sets fixed gas proportion valve opening.
In the embodiment of the present invention, additionally provide a kind of burnt gas wall hanging furnace water temperature control system, it include water temperature detection unit,
Current amount detection unit, gas ratio valve and controller, the water temperature detection unit are used to detect in the burnt gas wall hanging furnace
The water temperature detected is simultaneously sent to the controller by current water temperature, and the current amount detection unit is used to detect current current
Measure and the water-carrying capacity detected is sent to the controller, the gas ratio valve is used to adjust the air inflow of combustion gas
Saving, the controller is used for the temperature difference for calculating the target water temperature that current water temperature is set with user, and according to the temperature difference and currently
Water-carrying capacity carry out the aperture of regulating gas proportioning valve.
In the embodiment of the present invention, gas proportion valve opening and temperature difference data and water-carrying capacity have been preset in the controller
Relation adjustment function.
In the embodiment of the present invention, the controller is by judging whether current water-carrying capacity reaches the threshold value of setting to judge
Whether user is with water.
In the embodiment of the present invention, the controller is by the Real-time Monitoring Data to water-carrying capacity, water temperature, in real time to combustion gas ratio
Example valve opening is adjusted.
In the embodiment of the present invention, the controller according to the temperature difference of water-carrying capacity and current water temperature and the target water temperature of user come
Set fixed gas proportion valve opening.
Compared with prior art, burnt gas wall hanging furnace temperature control method of water of the invention has following beneficial effect:
By reaching the calculating of thermic load needed for design temperature to wall-hung boiler under the different temperature difference, different water-carrying capacity, different works are drawn
Thermic load service chart under condition, so that the adjustment function of setting ratio valve opening and temperature difference data and the relation of water-carrying capacity, according to
The adjustment function carries out Water-gas linkage, and the change of any water-carrying capacity can be transferred through the adjustment function and react to the change of proportioning valve
Change, be rapidly reached set temperature value, reduce temperature fluctuation；Controlled by Water-gas linkage, domestic hot-water's water flow signal is effective
Utilize, in addition to judging domestic hot-water's start, can also be rapidly entered according to water flow signal plus actual water temperature and set water temperature
Corresponding gas proportion valve regulation, so as to reduce fluctuating temperature amplitude and stabilization time, user is improved with water comfortableness.
Brief description of the drawings
Fig. 1 is the flow chart for the burnt gas wall hanging furnace temperature control method of water that the embodiment of the present invention one provides；
Fig. 2 is the schematic diagram of the change curve of required thermic load under the different water-carrying capacity difference temperature difference；
Fig. 3 is the structural representation for the burnt gas wall hanging furnace water temperature control system that the embodiment of the present invention two provides.
Embodiment
Invention is described in detail with reference to the accompanying drawings and examples.
Embodiment one
As shown in figure 1, in the embodiment of the present invention one, there is provided a kind of burnt gas wall hanging furnace temperature control method of water, it includes step S1-
S3.Illustrate separately below.
Step S1, water-carrying capacity detects：Current water-carrying capacity is detected, and judges whether user uses according to current water-carrying capacity
Water.
It is that user is judged whether with water by water-carrying capacity it should be noted that for burnt gas wall hanging furnace, when
When the current water-carrying capacity detected reaches the threshold value of setting, then illustrate user with water, it is necessary to open gas ratio valve
Degree is adjusted, so as to meet the water demand of user.
Step S2, water temperature detects：When detecting user's water, current water temperature is detected, and calculates current water temperature with using
The temperature difference of the target water temperature at family.
It should be noted that when the target water temperature of user is generally higher than current water temperature, it is necessary to will go out during user's water
Coolant-temperature gage is adjusted to the target water temperature of user, therefore, to lead to and the aperture regulation of gas ratio valve is adjusted, so as to the water for being
Temperature quickly rises to target temperature.
Step S3, gas proportion valve regulation：The opening come regulating gas proportioning valve according to the temperature difference and current water-carrying capacity
Degree.The regulation letter of gas proportion valve opening and temperature difference data and the relation of water-carrying capacity has been preset in the burnt gas wall hanging furnace
Number, the aperture of gas ratio valve can be drawn according to the temperature difference and current water-carrying capacity.
Fig. 2 shows the change curve of required thermic load under the different water-carrying capacity difference temperature difference, by the curve data, can set
Water-gas linkage water temperature control program under the fixed different water-carrying capacity difference temperature difference.Figure it is seen that with the increase of water-carrying capacity,
Required thermic load gap gradually increases between the different temperature difference.Curve according to Fig. 2, it can draw in advance in different water-carrying capacity
In the case of the corresponding relation of the temperature difference and the aperture of gas ratio valve, so as to form the adjustment function of a gas proportion valve opening,
In the adjustment function, the unit temperature difference and thermic load change curve are determined according to water flow signal first, further according to actual temperature
Difference determines the aperture of gas ratio valve, so as to greatly reduce the gas ratio valve adjustable range under any operating mode, can complete
The standard of water temperature is controlled, reduces the time needed for water temperature stability.
During the regulation for carrying out gas proportion valve opening, by real time to water-carrying capacity, actual water temperature and set water temperature
Monitoring in real time and analysis, are adjusted to gas proportion valve opening, can be quickly completed the regulation and control of ratio valve opening, make water temperature in real time
Stablize as early as possible in the case where water-carrying capacity changes.
Further, carry out gas proportion valve opening regulation during, can also according to water-carrying capacity and regulation the temperature difference come
Fixed gas proportion valve opening is set, is no longer approached regulation repeatedly, advantage of this is that regulation process is simple, shortcoming
It is reduction of temperature-controlled precision.
Embodiment two
As shown in figure 3, in the embodiment of the present invention two, there is provided a kind of burnt gas wall hanging furnace water temperature control system, it includes water temperature inspection
Survey unit 1, current amount detection unit 2, gas ratio valve 3 and controller 4.
The water temperature detection unit 1 is used to detect the current water temperature in the burnt gas wall hanging furnace and sends out the water temperature detected
Give the controller 4.The current amount detection unit 2 is used to detect current water-carrying capacity and sends the water-carrying capacity detected
To the controller 4.The gas ratio valve 3 is used to the air inflow of combustion gas be adjusted.The controller 4 is used to calculate and worked as
The temperature difference for the target water temperature that preceding water temperature is set with user, and according to the temperature difference and current water-carrying capacity come regulating gas proportioning valve
Aperture.
The regulation letter of gas proportion valve opening and temperature difference data and the relation of water-carrying capacity has been preset in the controller 4
Number, the aperture of gas ratio valve can be drawn according to the temperature difference and current water-carrying capacity.The controller 4 carries out gas proportion
It is right in real time by the real-time monitoring and analysis to water-carrying capacity, actual water temperature and set water temperature in real time during the regulation of valve opening
Gas proportion valve opening is adjusted, and can be quickly completed the regulation and control of ratio valve opening, makes water temperature in the case where water-carrying capacity changes
Stablize as early as possible., can also be according to water-carrying capacity and the regulation temperature difference during the controller 4 carries out the regulation of gas proportion valve opening
To set fixed gas proportion valve opening, regulation is no longer approached repeatedly, advantage of this is that regulation process is simple, is lacked
Point is reduction of temperature-controlled precision.
In summary, burnt gas wall hanging furnace temperature control method of water of the invention and system have following beneficial effect:
By reaching the calculating of thermic load needed for design temperature to wall-hung boiler under the different temperature difference, different water-carrying capacity, different works are drawn
Thermic load service chart under condition, so that the adjustment function of setting ratio valve opening and temperature difference data and the relation of water-carrying capacity, according to
The adjustment function carries out Water-gas linkage, and the change of any water-carrying capacity can be transferred through the adjustment function and react to the change of proportioning valve
Change, be rapidly reached set temperature value, reduce temperature fluctuation；Controlled by Water-gas linkage, domestic hot-water's water flow signal is effective
Utilize, in addition to judging domestic hot-water's start, can also be rapidly entered according to water flow signal plus actual water temperature and set water temperature
Corresponding gas proportion valve regulation, so as to reduce fluctuating temperature amplitude and stabilization time, user is improved with water comfortableness.
Above-described embodiment is merely to illustrate the embodiment of the present invention.It should be pointed out that for the general of this area
For logical technical staff, without departing from the inventive concept of the premise, some deformations and change can also be made, these deformations and
Change should all belong to protection scope of the present invention.
Claims (10)
- A kind of 1. burnt gas wall hanging furnace temperature control method of water, it is characterised in that including：Water-carrying capacity detecting step：Current water-carrying capacity is detected, and judges whether user uses water according to current water-carrying capacity；Water temperature detecting step：When detecting user's water, current water temperature is detected, and calculates current water temperature and the target of user The temperature difference of water temperature；Gas ratio valve regulating step：According to the temperature difference and current water-carrying capacity come regulating gas ratio valve opening.
- 2. burnt gas wall hanging furnace temperature control method of water as claimed in claim 1, it is characterised in that in the burnt gas wall hanging furnace in advance Set the adjustment function of gas proportion valve opening and temperature difference data and the relation of water-carrying capacity.
- 3. burnt gas wall hanging furnace temperature control method of water as claimed in claim 1, it is characterised in that in the water temperature detecting step, By detecting whether current water-carrying capacity reaches the threshold value of setting to judge whether user with water.
- 4. burnt gas wall hanging furnace temperature control method of water as claimed in claim 1, it is characterised in that the gas proportion valve regulation step In rapid, by the Real-time Monitoring Data to water-carrying capacity, water temperature, gas proportion valve opening is adjusted in real time.
- 5. burnt gas wall hanging furnace temperature control method of water as claimed in claim 1, it is characterised in that the gas proportion valve regulation step In rapid, fixed gas proportion valve opening is set according to the temperature difference of water-carrying capacity and current water temperature and the target water temperature of user.
- A kind of 6. burnt gas wall hanging furnace water temperature control system, it is characterised in that including water temperature detection unit, current amount detection unit, Gas ratio valve and controller, the water temperature detection unit are used to detect the current water temperature in the burnt gas wall hanging furnace and will detections To water temperature be sent to the controller, the current amount detection unit is used to detect current water-carrying capacity and the water that will be detected Flow is sent to the controller, and the gas ratio valve is used to the air inflow of combustion gas be adjusted, and the controller is used for The temperature difference for the target water temperature that current water temperature is set with user is calculated, and according to the temperature difference and current water-carrying capacity come regulating gas The aperture of proportioning valve.
- 7. burnt gas wall hanging furnace water temperature control system as claimed in claim 6, it is characterised in that preset in the controller The adjustment function of gas proportion valve opening and temperature difference data and the relation of water-carrying capacity.
- 8. burnt gas wall hanging furnace water temperature control system as claimed in claim 6, it is characterised in that the controller is worked as by judging Whether preceding water-carrying capacity reaches the threshold value of setting to judge whether user with water.
- 9. burnt gas wall hanging furnace water temperature control system as claimed in claim 6, it is characterised in that the controller passes through to current Amount, the Real-time Monitoring Data of water temperature, gas proportion valve opening is adjusted in real time.
- 10. burnt gas wall hanging furnace water temperature control system as claimed in claim 6, it is characterised in that the controller is according to current The temperature difference of amount and the target water temperature of current water temperature and user sets fixed gas proportion valve opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710930066.4A CN107525281A (en) | 2017-10-09 | 2017-10-09 | A kind of burnt gas wall hanging furnace temperature control method of water and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710930066.4A CN107525281A (en) | 2017-10-09 | 2017-10-09 | A kind of burnt gas wall hanging furnace temperature control method of water and system |
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| CN201710930066.4A Pending CN107525281A (en) | 2017-10-09 | 2017-10-09 | A kind of burnt gas wall hanging furnace temperature control method of water and system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110530031A (en) * | 2018-05-24 | 2019-12-03 | 青岛海尔智能技术研发有限公司 | A kind of gas heater control method |
| CN110940093A (en) * | 2018-09-21 | 2020-03-31 | 芜湖美的厨卫电器制造有限公司 | Control method and device, water heater and readable storage medium |
| CN111397219A (en) * | 2018-01-18 | 2020-07-10 | 芜湖美的厨卫电器制造有限公司 | Control device and method for gas-fired machine and gas water heater |
| CN109237603B (en) * | 2018-09-30 | 2020-09-22 | 珠海格力电器股份有限公司 | Wall-mounted furnace maintenance method and device, wall-mounted furnace and heating system |
| CN111707002A (en) * | 2020-05-20 | 2020-09-25 | 宁波方太厨具有限公司 | Method for calculating inlet water temperature of gas water heater |
| CN112665194A (en) * | 2020-12-28 | 2021-04-16 | 广东万和新电气股份有限公司 | Constant temperature control method of gas water heater and gas water heater |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111397219A (en) * | 2018-01-18 | 2020-07-10 | 芜湖美的厨卫电器制造有限公司 | Control device and method for gas-fired machine and gas water heater |
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| CN110940093A (en) * | 2018-09-21 | 2020-03-31 | 芜湖美的厨卫电器制造有限公司 | Control method and device, water heater and readable storage medium |
| CN109237603B (en) * | 2018-09-30 | 2020-09-22 | 珠海格力电器股份有限公司 | Wall-mounted furnace maintenance method and device, wall-mounted furnace and heating system |
| CN111707002A (en) * | 2020-05-20 | 2020-09-25 | 宁波方太厨具有限公司 | Method for calculating inlet water temperature of gas water heater |
| CN111707002B (en) * | 2020-05-20 | 2021-11-12 | 宁波方太厨具有限公司 | Method for calculating inlet water temperature of gas water heater |
| CN112665194A (en) * | 2020-12-28 | 2021-04-16 | 广东万和新电气股份有限公司 | Constant temperature control method of gas water heater and gas water heater |
| CN112665194B (en) * | 2020-12-28 | 2022-04-08 | 广东万和新电气股份有限公司 | Constant temperature control method of gas water heater and gas water heater |
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Application publication date: 20171229 |
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