CN109405053B - Heating control method and heating furnace - Google Patents
Heating control method and heating furnace Download PDFInfo
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- CN109405053B CN109405053B CN201811020764.1A CN201811020764A CN109405053B CN 109405053 B CN109405053 B CN 109405053B CN 201811020764 A CN201811020764 A CN 201811020764A CN 109405053 B CN109405053 B CN 109405053B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
Abstract
The invention discloses a heating control method and a heating furnace, wherein the heating control method comprises the following steps: collecting the current outlet water temperature and the current return water temperature; when the backwater temperature is not less than a preset low threshold value, judging whether a first difference value between the water outlet temperature and the water outlet set temperature is greater than a preset first threshold value or not; and when the first difference value between the outlet water temperature and the outlet water set temperature is not greater than a preset first threshold value, controlling the heating device to heat with the current output power. According to the heating control method and the heating furnace provided by the embodiment of the invention, in the process of starting the heating device for heating, the outlet water temperature and the return water temperature are both introduced into the control of the output power of the heating device, so that the defect that the existing thermodynamic system cannot combine the outlet water temperature and the return water temperature for heating control is overcome, and the heating effect is favorably improved.
Description
Technical Field
The invention relates to the technical field of heating, in particular to a heating control method and a heating furnace.
Background
In a thermodynamic system using circulating water as a heating medium, the outlet water temperature and the return water temperature are two important heat supply indexes and are closely related to the heat supply effect. In existing thermodynamic systems. For example, a gas heating furnace, two thresholds are generally set to independently control the outlet water temperature and the return water temperature. For example, when the outlet water temperature exceeds a higher threshold value, the heating power system is controlled to stop heating; and when the return water temperature is lower than a lower threshold value, increasing the output power of the thermodynamic system until the return water temperature is not lower than the corresponding threshold value. The control method is simple, only the condition of stopping heating and the water return condition of increasing heating power are given, the outlet water temperature and the water return temperature cannot be combined to carry out heating control, and the problem of poor heating effect exists.
Disclosure of Invention
In view of this, embodiments of the present invention provide a heating control method and a heating furnace, so as to solve the problem that the existing thermodynamic system has a simple control method and cannot combine the outlet water temperature and the return water temperature to perform heating control.
According to a first aspect, an embodiment of the present invention provides a heating control method, including: collecting the current outlet water temperature and the current return water temperature; when the return water temperature is not less than a preset low threshold, judging that a first difference value between the outlet water temperature and the outlet water set temperature is greater than a preset first threshold; and when the first difference value between the outlet water temperature and the outlet water set temperature is not greater than a preset first threshold value, controlling a heating device to heat with the current output power.
According to the heating control method provided by the embodiment of the invention, in the process of starting the heating device for heating, the outlet water temperature and the return water temperature are both introduced into the control of the output power of the heating device, so that the defect that the existing thermodynamic system cannot combine the outlet water temperature and the return water temperature for heating control is overcome, and the heating effect is favorably improved.
With reference to the first aspect, in a first embodiment of the first aspect, when the return water temperature is less than a preset low threshold, the heating device is controlled to heat with a larger output power until the return water temperature is greater than a preset high threshold, or until a first difference between the outlet water temperature and the outlet water set temperature is greater than a preset first threshold.
According to the heating control method provided by the embodiment of the invention, the heating device is controlled to heat with larger output power under the condition that the return water temperature is obviously reduced, so that the environmental temperature is rapidly increased, and the heating effect is favorably improved.
With reference to the first aspect, in a second aspect, when the return water temperature is greater than a preset high threshold, the heating device is controlled to maintain the current output power.
According to the heating control method provided by the embodiment of the invention, under the condition that the return water temperature or the outlet water temperature obviously rises, the heating device is controlled to keep the current output power, so that the waste of resources caused by continuously using high-power heating is avoided while the environment temperature is maintained.
With reference to the second aspect of the present invention, in the third aspect of the present invention, after the step of controlling the heating apparatus to heat with a small output, the method further includes: and when the first difference value between the outlet water temperature and the outlet water set temperature reaches a preset first threshold value, closing the heating device.
According to the heating control method provided by the embodiment of the invention, under the condition that the return water temperature obviously rises, the outlet water temperature of the heating device is further checked, and the heating device is turned off when the outlet water temperature is obviously higher than the set outlet water temperature, so that the resource waste caused by overhigh outlet water temperature is avoided, and the discomfort caused by the fact that the environment temperature greatly exceeds the temperature required by a user due to the further rise of the outlet water temperature is avoided.
With reference to the first aspect, in a fourth embodiment of the first aspect, before the acquiring the current outlet water temperature and return water temperature, the method further includes: receiving a heating instruction, wherein the heating instruction comprises the set water outlet temperature; and acquiring the current water outlet temperature, and judging whether to start the heating device according to the set water outlet temperature and the water outlet temperature.
According to the heating control method provided by the embodiment of the invention, before the heating device is started to heat, whether heating is started or not is judged according to the set outlet water temperature and the outlet water temperature; the heating device is started to heat only when the outlet water temperature meets the preset heating condition, so that resource waste caused by blind starting heating under the heating instruction of a user can be avoided.
With reference to the fourth aspect, in a fifth aspect, the determining whether to activate a heating apparatus based on the outlet water set temperature and the outlet water temperature includes: calculating a second difference value between the set water outlet temperature and the water outlet temperature; judging whether the second difference value is larger than a preset second threshold value or not; and when the second difference value is larger than a preset second threshold value, starting a heating device to heat for heating.
According to the heating control method provided by the embodiment of the invention, whether the heating device is started to heat or not is judged by using the difference value between the set outlet water temperature and the outlet water temperature, and the heating device can be prevented from being started to heat when the outlet water temperature is close to the set outlet water temperature, so that resource waste caused by blind starting of heating under a heating instruction of a user is avoided.
According to a second aspect, an embodiment of the present invention provides a heating control apparatus, including: the collection unit is used for collecting the current outlet water temperature and the current return water temperature; the judging unit is used for judging whether a first difference value between the water outlet temperature and the water outlet set temperature is greater than a preset first threshold value or not when the water return temperature is not less than the preset low threshold value; and the output power control unit is used for controlling the heating device to heat with the current output power when the first difference value between the outlet water temperature and the outlet water set temperature is not greater than a preset first threshold value.
According to a third aspect, an embodiment of the present invention provides a heating furnace, including: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing therein computer instructions, and the processor executing the computer instructions to perform the heating control method according to the first aspect or any one of the embodiments of the first aspect.
With reference to the third aspect, in a first embodiment of the third aspect, the heating furnace includes a gas heating furnace.
According to a fourth aspect, the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions for causing the computer to execute the heating control method according to the first aspect or any one of the implementation manners of the first aspect.
Drawings
The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and not to be construed as limiting the invention in any way, and in which:
fig. 1 is a flowchart showing a specific example of a heating control method in the embodiment of the present invention;
fig. 2 is a schematic configuration diagram showing a specific example of a heating control apparatus in the embodiment of the present invention;
fig. 3 is a schematic structural view showing a specific example of a heating furnace in the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides a heating control method, which may include the following steps, as shown in fig. 1:
step S101: and receiving a heating instruction. Specifically, a heating instruction is input to the heating device by a user, and the heating instruction should include a water outlet set temperature set by the user.
Step S102: and acquiring the current outlet water temperature, and judging whether to start the heating device according to the outlet water set temperature and the outlet water temperature. In a specific embodiment, the process of step S102 can be implemented by the following several sub-steps:
step S1021: and calculating a second difference value between the set water outlet temperature and the water outlet temperature. Before the heating device is started to heat, the outlet water temperature is generally lower than the outlet water set temperature, and the outlet water temperature gradually rises to the outlet water set temperature by heating the circulating water through the heating device. And (4) making a difference between the set water outlet temperature and the water outlet temperature, taking the difference value as a second difference value, and applying the second difference value to the judgment of the subsequent steps.
Step S1022: and judging whether the second difference value is larger than a preset second threshold value. In particular, the second threshold may be a relatively small constant, for example the second threshold may be 5 ℃. When the second difference is greater than the preset second threshold, performing step S1023; when the second difference is not greater than the preset second threshold, no operation is performed.
Step S1023: and starting a heating device to heat the heating. According to the heating control method provided by the embodiment of the invention, whether the heating device is started to heat or not is judged by using the difference value between the set outlet water temperature and the outlet water temperature, and the heating device can be prevented from being started to heat when the outlet water temperature is close to the set outlet water temperature, so that resource waste caused by blind starting of heating under a heating instruction of a user is avoided.
Step S103: collecting the current outlet water temperature and the current return water temperature;
step S104: and judging whether the return water temperature is less than a preset low threshold value. Specifically, the preset low threshold value can be used for controlling the cooling of the return water temperature, and the influence on the heating effect caused by too low return water temperature is avoided. In practical applications, the preset low threshold may be 15 ℃. When the return water temperature is not less than the preset low threshold, executing step S105; and when the water return temperature is less than the preset low threshold value, executing the step S108.
Step S105: and judging whether a first difference value between the outlet water temperature and the outlet water set temperature is greater than a preset first threshold value. After the heating device is started to heat, and the heating device is continuously operated for a period of time, the water outlet temperature is generally higher than the water outlet set temperature, the water outlet set temperature and the water outlet temperature are differentiated, and the difference value is used as a second difference value and applied to judgment of subsequent steps. The first threshold value can be a constant larger than the second threshold value, and is used for controlling the outlet water temperature, so that the waste of resources caused by overhigh outlet water temperature due to continuous heating is avoided. In practical applications, the first threshold may be 10 ℃. When the first difference value between the outlet water temperature and the outlet water set temperature does not reach a preset first threshold value, executing the step S106; and when the first difference value between the outlet water temperature and the outlet water set temperature reaches a preset first threshold value, closing the heating device.
Step S106: and controlling the heating device to heat at the current output power. When the first difference between the outlet water temperature and the outlet water set temperature reaches a preset first threshold value, the outlet water temperature is not considered to be obviously increased, and in order to ensure the heating effect, the heating device is still controlled to heat with the current output power.
Step S107: and collecting the water outlet temperature according to a preset sampling period. In order to avoid resource waste due to overhigh outlet water temperature caused by continuous heating, the outlet water temperature can be periodically collected while the heating device is controlled to heat at the current output power in step S106, and whether the first difference between the outlet water temperature and the outlet water set temperature reaches the preset first threshold is judged by using the newly collected outlet water temperature, that is, the step S105 should be returned after step S107, so as to realize continuous monitoring and closed-loop feedback of the outlet water temperature.
Step S108: and controlling the heating device to heat with larger output power. When the return water temperature is lower than the preset low threshold value, the return water temperature is considered to be too low, and the heating effect is poor. In order to improve the heating effect and quickly increase the ambient temperature, the heating device can be controlled to heat with larger output power.
Step S109: and acquiring the temperature of the return water according to a preset sampling period. After the heating device continuously operates for a period of time with larger output power, the return water temperature can be obviously increased, so that the problem of resource waste caused by overhigh return water temperature can be solved, the return water temperature can be periodically collected while the heating device is controlled to heat with larger output power in the step S108, and the return water temperature is monitored.
Step S110: and judging whether a first difference value between the outlet water temperature and the outlet water set temperature is greater than a preset first threshold value. When a first difference value between the outlet water temperature and the outlet water set temperature is greater than a preset first threshold value, closing the heating device; when the first difference between the outlet water temperature and the outlet water set temperature is not greater than the preset first threshold, step S111 is executed.
Step S111: and judging whether the return water temperature is greater than a preset high threshold value. Specifically, the preset high threshold value can be used for controlling the temperature rise of the return water temperature, so that resource waste or overhigh environment rise caused by overhigh return water temperature is avoided. In practical applications, the preset high threshold may be 25 ℃. When the return water temperature reaches a preset high threshold, executing step S112; and returning to the step S110 when the water return temperature does not reach the preset high threshold value.
Step S112: and controlling the heating device to keep the current output power. While controlling the heating device to maintain the current output power in step S112, the outlet water temperature may be periodically collected, and whether the first difference between the outlet water temperature and the outlet water set temperature reaches the preset first threshold is determined by using the outlet water temperature obtained by the latest collection, that is, after step S112, the process may return to step S103 to achieve continuous monitoring and closed-loop feedback of the outlet water temperature.
According to the heating control method provided by the embodiment of the invention, in the process of starting the heating device for heating, the outlet water temperature and the return water temperature are both introduced into the control of the output power of the heating device, so that the defect that the existing thermodynamic system cannot combine the outlet water temperature and the return water temperature for heating control is overcome, and the heating effect is favorably improved.
An embodiment of the present invention further provides a heating control device, as shown in fig. 2, the heating control device may include: an acquisition unit 201, a judgment unit 202 and an output power control unit 203.
The acquisition unit 201 is used for acquiring the current outlet water temperature and return water temperature; the specific working process may refer to step S103 in the above method embodiment.
When the backwater temperature is not less than the preset low threshold, the determining unit 202 is configured to determine whether a first difference between the effluent temperature and the effluent set temperature reaches a preset first threshold; the specific working process can be described with reference to steps S104 to S105 in the above method embodiment.
When a first difference value between the outlet water temperature and the outlet water set temperature does not reach a preset first threshold value, the output power control unit 203 is used for controlling the heating device to heat with the current output power; the specific working process can be described with reference to step S106 to step S107 in the above method embodiment.
An embodiment of the present invention further provides a heating furnace, as shown in fig. 3, the heating furnace may be a gas heating furnace, and may include a processor 301 and a memory 302, where the processor 301 and the memory 302 may be connected by a bus or in another manner, and fig. 3 illustrates the connection by the bus.
The memory 302 is a non-transitory computer-readable storage medium, and can be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as program instructions/modules corresponding to the key shielding method of the in-vehicle display device in the embodiment of the present invention (for example, the first acquisition unit 201, the judgment unit 202, and the output power control unit 203 shown in fig. 2). The processor 301 executes various functional applications and data processing of the processor by running non-transitory software programs, instructions and modules stored in the memory 302, so as to implement the heating control method in the above method embodiment.
The memory 302 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created by the processor 301, and the like. Further, the memory 302 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory 302 may optionally include memory located remotely from the processor 301, which may be connected to the processor 301 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The one or more modules are stored in the memory 302 and, when executed by the processor 301, perform a heating control method as in the embodiment shown in fig. 1.
The details of the heating furnace can be understood with reference to the corresponding description and effects of the embodiment shown in fig. 1, and are not described herein again.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic Disk, an optical Disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD) or a Solid State Drive (SSD), etc.; the storage medium may also comprise a combination of memories of the kind described above.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (10)
1. A heating control method characterized by comprising:
collecting the current outlet water temperature and the current return water temperature;
when the return water temperature is not less than a preset low threshold, judging whether a first difference value between the outlet water temperature and the outlet water set temperature is greater than a preset first threshold or not;
and when the first difference value between the outlet water temperature and the outlet water set temperature is not greater than a preset first threshold value, controlling a heating device to heat with the current output power.
2. The heating control method according to claim 1, characterized in that:
and when the return water temperature is lower than a preset low threshold value, controlling a heating device to heat with larger output power until the return water temperature is higher than a preset high threshold value, or until a first difference value between the outlet water temperature and the outlet water set temperature is higher than a preset first threshold value.
3. The heating control method according to claim 2, wherein when the return water temperature is greater than a preset high threshold, the heating device is controlled to maintain the current output power.
4. The heating control method according to claim 3, characterized in that:
and when the first difference value between the outlet water temperature and the outlet water set temperature is greater than a preset first threshold value, closing the heating device.
5. The heating control method according to claim 1, further comprising, before the acquiring the current outlet water temperature and return water temperature:
receiving a heating instruction, wherein the heating instruction comprises the set water outlet temperature;
and acquiring the current water outlet temperature, and judging whether to start the heating device according to the set water outlet temperature and the water outlet temperature.
6. The heating control method according to claim 5, wherein the determining whether to activate the heating device based on the outlet water set temperature and the outlet water temperature includes:
calculating a second difference value between the set water outlet temperature and the water outlet temperature;
judging whether the second difference value is larger than a preset second threshold value or not;
and when the second difference value is larger than a preset second threshold value, starting a heating device to heat for heating.
7. A heating control device, comprising:
the collection unit is used for collecting the current outlet water temperature and the current return water temperature;
the judging unit is used for judging whether a first difference value between the water outlet temperature and the water outlet set temperature is greater than a preset first threshold value or not when the water return temperature is not less than the preset low threshold value;
and the output power control unit is used for controlling the heating device to heat with the current output power when the first difference value between the outlet water temperature and the outlet water set temperature is not greater than a preset first threshold value.
8. A heating furnace, comprising:
a memory and a processor, the memory and the processor being communicatively connected to each other, the memory having stored therein computer instructions, the processor executing the computer instructions to perform the heating control method according to any one of claims 1 to 6.
9. A heating furnace as claimed in claim 8, wherein the heating furnace comprises a gas-fired heating furnace.
10. A computer-readable storage medium storing computer instructions for causing a computer to execute the heating control method according to any one of claims 1 to 6.
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| CN201811020764.1A CN109405053B (en) | 2018-09-03 | 2018-09-03 | Heating control method and heating furnace |
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| CN201811020764.1A CN109405053B (en) | 2018-09-03 | 2018-09-03 | Heating control method and heating furnace |
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| CN110081614B (en) * | 2019-04-26 | 2020-09-25 | 广东万和热能科技有限公司 | Gas condensing boiler control method, device, equipment and storage medium |
| CN112344414A (en) * | 2019-08-07 | 2021-02-09 | 青岛经济技术开发区海尔热水器有限公司 | Gas heating device, heating and hot water supplying system and control method thereof |
| CN112594775A (en) * | 2020-12-11 | 2021-04-02 | 国网江苏省电力有限公司南通供电分公司 | Control method for air source heat supply backwater temperature |
| CN115264555A (en) * | 2022-07-15 | 2022-11-01 | 珠海格力电器股份有限公司 | Heating control method and device and heating system |
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| KR101436072B1 (en) * | 2012-08-16 | 2014-09-01 | 주식회사 한성시스코 | Auto-control heating system and method for controlling the same |
| CN104515194B (en) * | 2013-09-26 | 2017-08-01 | 珠海格力电器股份有限公司 | The control method and device of heating system |
| CN104764170B (en) * | 2015-04-24 | 2018-09-18 | 珠海格力电器股份有限公司 | Heat pump start-up and shut-down control method and apparatus and air conditioner |
| CN105157087B (en) * | 2015-10-14 | 2017-12-22 | 珠海格力电器股份有限公司 | The control method and device of source pump |
| CN105805953A (en) * | 2016-03-18 | 2016-07-27 | 广东美的暖通设备有限公司 | Compressor control method and device in water heating mode |
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