CN111043640A - Heating system and control method thereof - Google Patents
Heating system and control method thereof Download PDFInfo
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- CN111043640A CN111043640A CN201911248283.0A CN201911248283A CN111043640A CN 111043640 A CN111043640 A CN 111043640A CN 201911248283 A CN201911248283 A CN 201911248283A CN 111043640 A CN111043640 A CN 111043640A
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- heat exchange
- exchange end
- heating system
- fan
- heater
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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
- F24D12/00—Other central heating systems
- F24D12/02—Other central heating systems having more than one heat source
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0096—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater combined with domestic apparatus
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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
- F24D2200/00—Heat sources or energy sources
- F24D2200/04—Gas or oil fired boiler
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/18—Details or features not otherwise provided for combined with domestic apparatus
- F24F2221/183—Details or features not otherwise provided for combined with domestic apparatus combined with a hot-water boiler
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Abstract
The invention relates to the technical field of heat exchange systems, in particular to a heating system and a control method thereof. The heating system includes: a heating system adapted to supply heat to the circulation line; the fan heat exchange end and the radiation heat exchange end are arranged at the tail end of the circulating pipeline and are communicated with the heating system; and the flow distribution controller is arranged on the circulating pipeline and is suitable for controlling the flow of the outlet end of the heating system and the flow of the pipeline for communicating the fan heat exchange end with the radiation heat exchange end. According to the heating system, the heat exchange of the fan and the radiation heat dissipation are connected in parallel, the heat exchange end of the fan provides rapid heating for a room, the heating time is reduced, when the temperature of the room is raised to a set temperature, the radiation heat dissipation is adopted for heating, the heat dissipation is more uniform, the air drying of the room is avoided, the heating comfort is greatly improved, and the heating rate and the heating comfort are considered at the same time.
Description
Technical Field
The invention relates to the technical field of heat exchange systems, in particular to a heating system and a control method thereof.
Background
The household water air conditioner and the heating water heater are two common heating systems for household heating. The household water air conditioner has the advantages of mature use, low energy consumption, low cost, no pollution and the like, and can realize two modes of heating and refrigerating under the current technical condition. When the household water air conditioner switches the refrigeration mode, low-temperature water enters the fan coil, and the fan coil discharges low-temperature air to play a role in reducing the room temperature. When the household water air conditioner is in a heating mode, high-temperature water enters the fan coil, and the fan coil discharges high-temperature air to play a role in raising the temperature of a room. The household water air conditioner adopts the air outlet for heat exchange, and has the advantages of quick heating and temperature rise under the heating mode, uneven temperature rise, dry room air and great influence on heating comfort.
The heating water heater has the advantages of simple operation and small pollution as a household heating system, and the common radiating tail end of the heating water heater is a ground heating pipe or a radiator which adopts autonomous radiation, so that the room can radiate heat uniformly, but the temperature rise time is longer. Especially, the floor heating system is usually started for 2-3 hours, the room temperature still cannot rise, and the user experience is greatly influenced.
Therefore, how to provide a heating system which has both the heating rate and the heating comfort becomes an urgent problem to be solved.
Disclosure of Invention
The invention provides a heating system and a control method thereof, aiming at solving the technical problem that the existing heating system cannot give consideration to both the heating rate and the heating comfort.
In a first aspect, the present invention provides a heating system, comprising:
a heating system adapted to supply heat to the circulation line;
the fan heat exchange end and the radiation heat exchange end are arranged at the tail end of the circulating pipeline and are communicated with the heating system; and
and the flow distribution controller is arranged on the circulating pipeline and is suitable for controlling the flow of the outlet end of the heating system and the flow of the pipeline for communicating the fan heat exchange end with the radiation heat exchange end.
In some embodiments, the heating system comprises a first heater and a second heater, the first heater and the second heater are connected in parallel on the circulation pipeline, and the outlet ends of the first heater and the second heater are both communicated with the fan heat exchanging end and the radiation heat exchanging end through the flow dividing controller.
In some embodiments, the shunt controller comprises:
the inlet end of the first flow divider is communicated with the outlet end of the first heater, the two outlet ends of the first flow divider are respectively communicated with the inlet ends of the fan heat exchange end and the radiation heat exchange end, and the flow rates of the two outlet ends are respectively controlled; and
and the inlet end of the second flow divider is communicated with the outlet end of the second heater, and the two outlet ends are respectively communicated with the inlet ends of the fan heat exchange end and the radiation heat exchange end and respectively control the flow of the two outlet ends.
In some embodiments, the first and second diverters are both three-way regulating valves.
In some embodiments, the circulation line comprises:
the first water return pipe is communicated with the outlet end of the radiant heat exchange end and the inlet end of the heating system;
the second water return pipe is communicated with the outlet end of the heat exchange end of the fan and the inlet end of the heating system;
the first water inlet pipe is communicated with the inlet end of the radiant heat exchange end and the outlet end of the heating system; and
and the second water inlet pipe is communicated with the inlet end of the heat exchange end of the fan and the outlet end of the heating system.
In some embodiments, the inlet end of the first water return pipe is communicated with the outlet end of the radiant heat exchange end, and the two outlet ends are respectively communicated with the inlet ends of the first heater and the second heater; the inlet end of the second water return pipe is communicated with the outlet end of the heat exchange end of the fan, and the outlet end of the second water return pipe is communicated with the inlet end of the first heater; two inlet ends of the first water inlet pipe are respectively communicated with one outlet end of the first splitter and one outlet end of the second splitter, and the outlet ends of the first water inlet pipe and the second water inlet pipe are communicated with the inlet ends of the radiation heat exchange ends; and two inlet ends of the second water inlet pipe are respectively communicated with the other outlet ends of the first splitter and the second splitter, and the outlet end of the second water inlet pipe is communicated with the inlet end of the heat exchange end of the fan.
In some embodiments, the fan heat exchange end comprises a fan coil and the radiant heat exchange end comprises a radiator and/or a floor heater.
In some embodiments, the first heater is a household water machine and the second heater is a wall-hanging stove.
In some embodiments, the heating system further comprises:
and the circulating pump and the coupling tank are arranged on the circulating pipeline.
In some embodiments, the heating system further comprises:
and the temperature sensor is suitable for detecting the ambient temperature of the space to be warmed.
In a second aspect, the present invention provides a method for controlling a heating system, where the heating system is the heating system according to any one of the embodiments of the first aspect, the heating system further includes a main controller, and the method includes:
acquiring the ambient temperature of a space to be heated and the temperature set by a user;
judging whether the difference value between the environment temperature and the set temperature is greater than a preset threshold value or not;
if so, starting the heat exchange end of the fan; or the fan heat exchange end and the radiation heat exchange end are started;
if not, the radiation heat exchange end is started.
In some embodiments, if so, turning on the fan heat exchange end; or after the fan heat exchange end and the radiation heat exchange end are started, the method further comprises the following steps:
and detecting the ambient temperature of the space to be heated until the ambient temperature reaches the set temperature, closing the fan heat exchange end, and opening the radiation heat exchange end.
In some embodiments, the turning off the fan heat exchanging end and the turning on the radiation heat exchanging end includes:
and controlling the flow distribution controller, reducing the flow flowing into the fan heat exchange end, increasing the flow flowing into the radiation heat exchange end, and completely closing the flow flowing into the fan heat exchange end until a first preset time.
The heating system comprises a heating system, a fan heat exchange end, a radiation heat exchange end and a shunt controller, wherein the heating system supplies heat for a circulating pipeline of the heating system, the fan heat exchange end and the radiation heat exchange end are arranged at the tail end of the circulating pipeline and are communicated with the heating system, and the shunt controller is arranged on the circulating pipeline and is suitable for controlling the flow of hot water flowing into the two heat exchange ends. According to the heating system, the heat exchange of the fan and the radiation heat dissipation are connected in parallel, the heat exchange end of the fan provides rapid heating for a room, the heating time is reduced, when the temperature of the room is raised to a set temperature, the radiation heat dissipation is adopted for heating, the heat dissipation is more uniform, the air drying of the room is avoided, the heating comfort is greatly improved, and the heating rate and the heating comfort are considered at the same time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of a heating system according to some embodiments of the present invention.
Fig. 2 is a flowchart of a control method of a heating system according to some embodiments of the present invention.
Description of reference numerals:
1-a first water return pipe; 2-a second water return pipe; 3-a first water inlet pipe; 4-a second water inlet pipe; 11-a first heater; 12-a second heater; 21 a-a first fan coil; 21 b-a second fan coil; 22 a-a first radiator; 22 b-a second radiator; 31-a first splitter; 32-a second flow splitter; 40-a circulating pump; 50-a coupling tank; 61-a first flow valve; 62-second flow valve.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some examples of the present invention, but not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The heating system provided by the invention can be used for an indoor heating circulation system, such as household heating or commercial heating. In the prior art, a household water air conditioner and a heating wall-mounted furnace are two common heating devices. The heat dissipation end of the household water air conditioner is provided with the fan coil, the fan discharges heat of the heat dissipation coil from the air outlet quickly, and due to the action of the external fan, the temperature rising speed of the household water air conditioner is high, but simultaneously, the heat is discharged from the air outlet quickly, so that the temperature rising of the whole room is uneven, and the air in the room is dry, so that the heating comfort is influenced. And the heat dissipation end of hanging stove generally is radiator or ground heating coil, and radiator and ground heating coil all adopt independently radiation heat dissipation, and heat radiating area is big, warms up especially, and consequently the room intensifies temperature, and the travelling comfort is stronger, but simultaneously because radiator and ground heating coil's pipeline is long, radiation radiating efficiency is poor, leads to hanging stove heating rate of rise very slow.
It should be noted that if a user wants to take heating comfort and heating rate into account, two sets of heating systems are needed, on one hand, the cost is increased, and on the other hand, because the two sets of systems are independently supplied, the user manually switches the heating systems, so that the operation complexity is increased. Most importantly, the front ends of the two systems can not be shared, a circulating pipeline structure is added, the heating system can not be shared, the utilization rate of the front end of the system is reduced, and a heating system which can give consideration to both the comfort and the heating rate is not provided in the prior art.
Based on the above, the invention provides a heating system with both heating comfort and heating rate, which comprises a heating system, a fan heat exchanging end, a radiation heat exchanging end and a shunt controller. The heating system is used as a main heating system of the heating system and heats circulating water in the circulating pipeline so as to provide heat for the heat dissipation tail end, and the heating system can adopt any heating device, such as a gas wall-mounted furnace, a household water machine, an electric heating device and the like. The fan heat exchange end and the radiation heat exchange end are used as the heat dissipation end of the heating system, the fan heat exchange end can comprise a fan coil, so that rapid heat exchange is provided for a room, rapid temperature rise is achieved, the radiation heat exchange end can comprise heat exchange equipment which is dependent on autonomous radiation heat dissipation, such as a floor heating end and a heating fin, so that uniform heat supply is provided for the room, and comfortable heating is achieved. The flow distribution controller is arranged on the circulating pipeline and is suitable for controlling the flow of the pipeline for communicating the outlet end of the heating system with the heat dissipation tail end, so that the switching of different heat dissipation tail ends is realized.
According to the heating system provided by the invention, the heat exchange ends of the fans are connected in parallel, the heat exchange ends of the fans provide rapid heating for a room, the heating time is reduced, and when the temperature of the room is raised to a certain temperature, the heating comfort is ensured, the heating is switched to the radiation heat dissipation for heating, the heat dissipation is more uniform, the air in the room is prevented from being dried, and the heating comfort is greatly improved.
Fig. 1 shows a structure of a heating system according to some embodiments of the present invention, and the heating system of the present invention is further described with reference to fig. 1.
In some embodiments, as shown in fig. 1, a heating system provided by the present invention includes a heating system, a fan heat exchanger, a radiant heat exchanger, and a flow divider controller. The heating system comprises a first heater 11 and a second heater 12, wherein the first heater 11 and the second heater 12 are connected on the circulating pipeline in parallel and can supply heat to the circulating pipeline. In this embodiment, the first heater is a household water machine 11, the second heater 12 is a gas wall-mounted boiler, the household water machine 11 generally includes an indoor unit and an outdoor unit, and the working principle of the household water machine 11 is the same as that of a common water machine, which can be realized by a person skilled in the art and will not be described herein again. The gas wall-mounted boiler 12 is a heating device for realizing heat exchange by using gas heating, and comprises a burner and a heat exchanger, wherein the burner is communicated with a natural gas supply system, and the heat exchanger realizes heating of circulating water in a circulating pipeline through combustion of the burner.
In this embodiment, the fan heat exchange end includes a first fan coil 21a and a second fan coil 21b, the first fan coil 21a and the second fan coil 21b are connected in parallel and disposed at the heat dissipation end of the circulation pipeline, and the heat of the coils is dissipated to the indoor environment in a hot air manner through the rotation of the fan, so that the indoor environment is heated up quickly. Because hot wind blows towards the human body, the mouth of the human body is dry and the tongue of the human body is difficult to breathe, and therefore the fan coil is generally arranged in the air outlet at the top of the room, and the direct blowing to the human body is avoided. The radiation heat transfer end includes first radiator 22a and second radiator 22b, first radiator 22a and second radiator 22b connect in parallel and set up at circulation pipeline's heat dissipation end, the radiator is through independently radiating the heat dissipation to indoor air, because the radiator generally is multistage parallelly connected, heat transfer area is big and the radiating efficiency is high, consequently dispel the heat more evenly in to the air, can not cause uncomfortable sense to the human body, the travelling comfort is high, consequently indoor lower part space can be located to first radiator 22a and second radiator 22b, generally for leaning on the wall setting.
The fan heat exchange end and the radiation heat exchange end are communicated with the heating system through a circulating pipeline, and the circulating pipeline comprises a first water return pipe 1, a second water return pipe 2, a first water inlet pipe 3 and a second water inlet pipe 4. The inlet end of the first water return pipe 1 is communicated with the outlet end of the radiation heat exchange end, and the two outlet ends are respectively communicated with the inlet ends of the first heater 11 and the second heater 12, so that low-temperature water after heat exchange of the two heating radiators flows back to the first heater 11 and/or the second heater 12 for heating and participates in next circulation. The inlet end of the second water return pipe 2 is communicated with the outlet end of the heat exchange end of the fan, and the outlet end of the second water return pipe is communicated with the inlet ends of the first heater 11 and the second heater 12, so that low-temperature water after heat exchange of the two fan coils flows back to the first heater 11 and/or the second heater 12 to be heated, and participates in next circulation.
The first water inlet pipe 3 is communicated with the inlet end of the radiation heat exchange end and the outlet end of the heating system, and the second water inlet pipe 4 is communicated with the inlet end of the fan heat exchange end and the outlet end of the heating system, so that high-temperature water heated by the heating system enters the radiation heat exchange end and the fan heat exchange end, and the switching of different heat dissipation ends is realized through the shunt controller.
As shown in fig. 1, in the present embodiment, the flow dividing controller includes a first flow divider 31 and a second flow divider 32, the flow dividing controller realizes the flow direction switching of the outlet water of the heating system, and the first flow divider 31 and the second flow divider 32 may adopt a three-way regulating valve, and the three-way regulating valve controls the opening degree of the outlet through a stepping motor, thereby realizing the control of the flow rate of each outlet. A first flow divider 31 is provided at the outlet end of the first heater 11, the inlet end of which communicates with the outlet end of the first heater 11, and a second flow divider 32 is provided at the outlet end of the second heater 23, the inlet end of which communicates with the outlet end of the second heater 12. Two inlet ends of the first water inlet pipe 3 are respectively communicated with one outlet end of the first flow divider 31 and one outlet end of the second flow divider 32, and the outlet ends of the first water inlet pipe are communicated with the inlet ends of the radiation heat exchange ends, so that high-temperature water heated by the first heater 11 and the second heater 12 enters the two heating radiators for participating in heat exchange, and low-temperature water subjected to heat exchange flows back to the first heater 11 and the second heater 12 through the first water return pipe 1 to realize circulation. Two inlet ends of the second water inlet pipe 4 are respectively communicated with the other outlet ends of the first flow divider 31 and the second flow divider 32, and the outlet end thereof is communicated with the inlet end of the heat exchanging end of the fan, so that high-temperature water heated by the first heater 11 and the second heater 12 enters the two fan coils to participate in heat exchange, and low-temperature water after heat exchange flows back to the first heater 11 and the second heater 12 through the second water return pipe 2, thereby realizing circulation.
In the embodiment, the front ends of the fan coil and the heating sheet are shared through the shunt controller, so that the heating system can realize multiple heating modes. For example, the first heater 11 can supply heat to a certain heat dissipation end independently, or can supply heat to two heat dissipation ends simultaneously, and the second heater 12 is the same; for example, the first heater 11 and the second heater 12 may supply heat to one heat dissipation end or both heat dissipation ends at the same time. The commonality of heating front end has improved heating system's linkage greatly, realizes the regulation of multiple heating load on the one hand, and on the other hand realizes the switching of multiple heating mode, has improved the fault-tolerant rate of system simultaneously, even a certain heating front end breaks down, also can guarantee heating system's normal use.
In some embodiments, the heating system of the present invention further includes a circulation pump 40, a coupling tank 50, a temperature sensor (not shown in the drawings), and a flow regulating valve. The circulating pump 40 is arranged on the first water return pipe 1 and provides power for circulating water in the circulating pipeline. The coupling tank 50 is arranged on the circulating pipeline to realize hydraulic balance of circulating water in the pipeline. The structure and principle of the circulation pump 40 and the coupling tank 50 are the same as those of the prior art, and those skilled in the art can realize the above-mentioned structure and principle based on the above disclosure, and the detailed description is omitted here. The temperature sensor may be disposed at the middle of the indoor space to detect the ambient temperature of the indoor space. As shown in fig. 1, the flow regulating valve includes a first flow valve 61 and a second flow valve 62, which are respectively disposed at the outlet ends of the first radiator 22a and the second radiator 22b, so as to regulate the outlet flow.
While the above description has been made of the structure of the heating system according to some embodiments of the present invention, other alternative embodiments of the heating system according to the present invention are also possible based on the above disclosure.
In some alternative embodiments, the difference from the above embodiments is that the heating system may be provided in any other suitable number and form, and may be provided as one heater or a plurality of heaters, and the form of the heaters may be any form of heater, which may be the same or different. For example, the first heater 11 and the second heater 12 may be both gas wall-hanging stoves, or other heaters may be added. Any type of heater that can supply heat to the circulation line can be used as an alternative to the present invention.
In other alternative embodiments, the heat dissipation end may also be disposed in other numbers or forms according to specific needs, for example, the fan heat exchange end may further include other numbers of fan coils, and the radiation heat exchange end may also be disposed in other numbers of radiators or ground heating pipes, etc., which is not limited in this disclosure.
In the second aspect, the invention further provides a control method of a heating system, which may be the heating system in any of the above embodiments, and the heating system further includes a main controller (not shown in the drawings), and the main controller is communicated with each heater, the shunt, the temperature sensor, and the like, so as to control the heating system. Fig. 1 shows a flowchart of a control method provided by the present invention, and the control method includes:
and S1, acquiring the ambient temperature and the user set temperature of the space to be heated. The indoor temperature can be detected by a temperature sensor, for example, so as to obtain the current indoor ambient temperature T0. User-set temperature TIs provided withThe user can manually adjust the set temperature through the indoor NTC or remote control to obtain the set temperature T set by the userIs provided with。
S2, judging the environmental temperature T0And a set temperature TIs provided withIf the difference is greater than the preset threshold, the step S3 is executed if the difference is greater than the preset threshold, and the step S5 is executed if the difference is not greater than the preset threshold. The difference between the ambient temperature and the set temperature represents the difference between the current indoor temperature and the expected temperature of the user, and the larger the difference is, the larger the temperature difference between the indoor temperature and the expected temperature is, and the rapid heating is the priority requirement at the moment. And the smaller the difference value is, the smaller the difference value between the indoor temperature and the expected temperature is, and the rapid temperature rise is not needed. For example, when the user just returns home, the indoor temperature is 10 ℃, the user-set temperature is 22 ℃, the preset threshold value is 5 ℃, and the ambient temperature T is at this time0And a set temperature TIs provided withDifference (T) ofIs provided with-T0) 12 c, which is much greater than 5 c, at which time a rapid temperature rise is required, step S3 is performed. Similarly, if the difference between the ambient temperature and the set temperature is smaller than the preset threshold, the heating is kept comfortable without rapidly increasing the temperature, and step S5 is executed.
S3, starting a fan heat exchange end; or starting the fan heat exchange end and the radiation heat exchange end. When the difference value between the ambient temperature and the set temperature is large, the temperature needs to be rapidly increased, the temperature increase rate of the fan heat exchange end is high, and therefore the fan heat exchange end is at least started to rapidly increase the temperature indoors. Particularly, the main controller can control the first flow divider 31 and the second flow divider 32 to be opened to the maximum flow with the pipeline communicated with the heat exchange end of the fan, so that the heat supply at the heat exchange end of the fan is ensured, and the indoor rapid temperature rise is realized.
S4, judging whether the environment temperature is equal to the temperature set by the user, if so, executing the step S5; if not, the process returns to step S3. Temperature sensor detects indoor ambient temperature T0Since the indoor temperature needs to be maintained at the set temperature at this time when the indoor temperature rises to the set temperature along with the rise of the indoor temperature, the temperature of the room does not need to be raised at this time, and the process proceeds to step S5. And when the indoor temperature does not rise to the set temperature, the state of the step S3 is maintained all the time, and the heat exchange end of the fan is kept opened.
And S5, closing the fan heat exchange end and opening the radiation heat exchange end. When the indoor temperature rises to the set temperature, the room does not need to be heated at this time, and therefore the temperature can be maintained by switching to a state of comfortable heating. When the temperature is raised only by the fan heat exchange end in the temperature raising stage, the fan heat exchange end can be closed, and the radiation heat exchange end is opened. When the temperature is raised by simultaneously adopting the fan heat exchange end and the radiation heat exchange end in the temperature raising stage, only the fan heat exchange end is closed.
In some embodiments, because the heat dissipation rate of the radiant heat exchange end is slow, if directly switching from the fan heat exchange end to the radiant heat exchange end for supplying heat, a sudden drop of the room temperature may be caused, and the comfort of the user heating may also be affected to a certain extent, so in step S5, the method further includes:
and controlling the shunt controller to reduce the flow rate flowing into the heat exchange end of the fan and increase the flow rate flowing into the radiation heat exchange end until the flow rate flowing into the heat exchange end of the fan is completely closed after the first preset time.
When the indoor temperature reaches the set temperature, the shunt controller is controlled at the moment, the flow flowing into the fan heat exchange end is gradually reduced, so that the heat of the fan heat exchange end is reduced, the flow flowing into the radiation heat exchange end is gradually increased, the heat of the radiation heat exchange end is increased, and the gradual transition from rapid temperature rise to comfortable heating is realized. And completely closing the heat exchange end of the fan until the first preset time, and entering comfortable heating. The first preset time can be adjusted according to the heating speed of different radiation heat exchange ends, for example, the general household space can be 5-10 min. Through the transition of first preset time, the heat in radiation heat transfer end tends to be stable to avoid the condition that the temperature suddenly drops to appear after the switching, further improve the heating travelling comfort.
It should be understood that the above embodiments are only examples for clearly illustrating the present invention, and are not intended to limit the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A heating system, comprising:
a heating system adapted to supply heat to the circulation line;
the fan heat exchange end and the radiation heat exchange end are arranged at the tail end of the circulating pipeline and are communicated with the heating system; and
and the flow distribution controller is arranged on the circulating pipeline and is suitable for controlling the flow of the outlet end of the heating system and the flow of the pipeline for communicating the fan heat exchange end with the radiation heat exchange end.
2. The heating system according to claim 1,
the heating system comprises a first heater (11) and a second heater (12), the first heater (11) and the second heater (12) are connected on the circulating pipeline in parallel, and outlet ends of the first heater (11) and the second heater (12) are communicated with the fan heat exchange end and the radiation heat exchange end through the shunt controller.
3. The heating system of claim 2, wherein the flow split controller comprises:
the inlet end of the first flow divider (31) is communicated with the outlet end of the first heater (11), the two outlet ends of the first flow divider are respectively communicated with the inlet ends of the fan heat exchange end and the radiation heat exchange end, and the flow rates of the two outlet ends are respectively controlled; and
and the inlet end of the second flow divider (32) is communicated with the outlet end of the second heater (12), the two outlet ends of the second flow divider are respectively communicated with the inlet ends of the fan heat exchange end and the radiation heat exchange end, and the flow rates of the two outlet ends are respectively controlled.
4. The heating system according to claim 3,
the first shunt (31) and the second shunt (32) are both three-way regulating valves.
5. The heating system according to claim 1,
the fan heat exchange end comprises a fan coil, and the radiation heat exchange end comprises a radiator and/or a floor heater.
6. The heating system according to claim 2,
the first heater (11) is a household water machine, and the second heater (12) is a wall-mounted furnace.
7. The heating system according to claim 1, further comprising:
and the circulating pump (40) and the coupling tank (50) are arranged on the circulating pipeline.
8. A method for controlling a heating system, wherein the heating system is a heating system according to any one of claims 1 to 7, the heating system further comprising a main controller, the method comprising:
acquiring the ambient temperature of a space to be heated and the temperature set by a user;
judging whether the difference value between the environment temperature and the set temperature is greater than a preset threshold value or not;
if so, starting the heat exchange end of the fan; or the fan heat exchange end and the radiation heat exchange end are started;
if not, the radiation heat exchange end is started.
9. The control method according to claim 8, wherein if yes, the fan heat exchange end is started; or after the fan heat exchange end and the radiation heat exchange end are started, the method further comprises the following steps:
and detecting the ambient temperature of the space to be heated until the ambient temperature reaches the set temperature, closing the fan heat exchange end, and opening the radiation heat exchange end.
10. The control method according to claim 9, wherein the turning off the fan heat exchange end and the turning on the radiation heat exchange end comprise:
and controlling the flow distribution controller, reducing the flow flowing into the fan heat exchange end, increasing the flow flowing into the radiation heat exchange end, and completely closing the flow flowing into the fan heat exchange end until a first preset time.
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| CN114046594A (en) * | 2021-11-15 | 2022-02-15 | 珠海格力电器股份有限公司 | Temperature control method, device and system |
| CN114738852A (en) * | 2022-04-26 | 2022-07-12 | 浙江中广电器集团股份有限公司 | Liquid accumulation preventing multi-connected floor heating air conditioner and control method thereof |
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