CN114688600A - Boiler system and method of operation - Google Patents
Boiler system and method of operation Download PDFInfo
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- CN114688600A CN114688600A CN202111581968.4A CN202111581968A CN114688600A CN 114688600 A CN114688600 A CN 114688600A CN 202111581968 A CN202111581968 A CN 202111581968A CN 114688600 A CN114688600 A CN 114688600A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 286
- 239000008400 supply water Substances 0.000 claims abstract description 32
- 230000008859 change Effects 0.000 claims abstract description 11
- 238000002485 combustion reaction Methods 0.000 claims description 27
- 230000000007 visual effect Effects 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 9
- 230000003247 decreasing effect Effects 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 9
- 238000010438 heat treatment Methods 0.000 description 22
- 230000006870 function Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- 241000404068 Cotula Species 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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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
- F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
- F24D19/1069—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water regulation in function of the temperature of the domestic hot water
-
- 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
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
- F24D3/105—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system pumps combined with multiple way valves
-
- 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
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
- F24D19/1024—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves a multiple way valve
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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
- F24D3/00—Hot-water central heating systems
- F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
-
- 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
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
-
- 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
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/02—Fluid distribution means
- F24D2220/0207—Pumps
-
- 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
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/02—Fluid distribution means
- F24D2220/0235—Three-way-valves
-
- 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
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/04—Sensors
- F24D2220/042—Temperature sensors
-
- 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]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Water Supply & Treatment (AREA)
- Computing Systems (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The invention relates to a boiler system and an action method, which can comprise the following steps: a boiler that heats the direct feed water such that a temperature of the direct feed water reaches a hot water set temperature; and a room controller which judges whether to change the hot water set temperature based on the hot water set temperature and the temperature of the direct supply water, and provides set temperature information according to the judged result to a user and the boiler.
Description
Technical Field
The invention relates to a boiler system and an action method for hot water temperature control.
Background
Boilers can be generally classified into hot water type boilers and warm air type boilers.
The hot water boiler heats the floor of a room by passing heated heating water through heating pipes of the respective rooms, and the warm air boiler directly heats indoor air.
The boiler performs a function of supplying hot water to enable a user to use the hot water, in addition to a function of heating air or water for heating.
There are several problems in supplying hot water of a temperature desired by a user, and the biggest problem is a limitation in hot water supply capacity of the boiler.
Therefore, there is a need for developing a technology capable of supplying hot water to a user by maximally utilizing the hot water supply capacity of a boiler according to a hot water set temperature and a hot water use environment based on the user.
Disclosure of Invention
Problems to be solved by the invention
An object of an embodiment of the present invention is to provide a boiler system and an operation method as follows: the boiler system includes a room controller that changes a temperature of hot water discharged from the boiler and a set temperature of the hot water displayed on the room controller according to a difference between the set temperature of the hot water set by a user and a temperature of the direct supply water.
Technical problems of the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned can be clearly understood by those skilled in the art from the following description.
Means for solving the problems
A boiler system according to an embodiment of the present invention may include: a boiler that heats the direct feed water such that a temperature of the direct feed water reaches a hot water set temperature; and a room controller which judges whether to change the hot water set temperature based on the hot water set temperature and the temperature of the direct supply water, and provides set temperature information according to the judged result to a user and the boiler.
According to one embodiment, the room controller may determine whether to change the hot water set temperature based on the hot water set temperature, the temperature of the direct supply water, the maximum combustion heat of the boiler, and a direct supply water flow rate, which may include a flow rate of the direct supply water flowing into the boiler.
According to one embodiment, the room controller may calculate a required amount of heat that the boiler should consume in a process in which the direct supply water reaches the hot water set temperature based on the hot water set temperature, the temperature of the direct supply water, and the direct supply water flow rate, and compare the required amount of heat with the maximum combustion amount of heat to determine whether to change the hot water set temperature.
According to one embodiment, if the required heat amount exceeds the maximum combustion heat amount or a remaining heat amount calculated based on the required heat amount and the maximum combustion heat amount exceeds a preset range, the room controller may determine that the set temperature of the hot water needs to be changed and provide the set temperature information after the set temperature of the hot water is changed to the user.
According to one embodiment, the room controller may decrease the hot water set temperature if the required heat exceeds the maximum combustion heat, and provide the decreased hot water set temperature as the set temperature information to the user.
According to one embodiment, the room controller may calculate the remaining heat amount by subtracting the maximum combustion heat amount from the required heat amount, increase the set temperature of the hot water if the remaining heat amount is out of the preset range, and provide the increased set temperature of the hot water as the set temperature information to the user.
According to one embodiment, if the remaining heat amount is within a preset range, the room controller may determine that the set temperature of the hot water does not need to be changed, and provide the set temperature of the hot water as the set temperature information to the user.
According to one embodiment, the room controller may comprise: a communication section that communicates with the boiler;
a control unit that calculates the required heat amount and the remaining heat amount and changes the set temperature of the hot water; and
a display part which provides the set temperature of the hot water to the user as visual information,
providing information on the changed set temperature of the hot water to the boiler as the set temperature information through the communication part.
Methods of operation of boiler systems according to other embodiments of the invention may include: a hot water usage sensing step for sensing hot water usage; a first range judgment step of judging whether a difference between a direct water supply temperature and a hot water set temperature is within a first range if the hot water usage is sensed in the hot water usage sensing step; a first hot water set temperature display step of increasing the hot water set temperature and providing it as visual information to a user if it is determined in the first range determination step that the difference between the direct water supply temperature and the hot water set temperature is within a first range.
According to other embodiments, the method of action of the boiler system may further comprise: a second range determination step of determining whether a difference between the direct water supply temperature and the hot water set temperature is within a second range if the difference between the direct water supply temperature and the hot water set temperature in the first range determination step is out of a first range.
According to other embodiments, the method of action of the boiler system may further comprise: a second hot water set temperature display step of providing the hot water set temperature as visual information to a user if it is determined in the second range determination step that the difference between the direct water supply temperature and the hot water set temperature is within a second range.
According to other embodiments, the method of action of the boiler system may further comprise: a third hot water set temperature display step of decreasing the hot water set temperature and providing the decreased hot water set temperature as visual information to a user if it is determined in the second range determination step that the difference between the direct water supply temperature and the hot water set temperature is out of a second range.
ADVANTAGEOUS EFFECTS OF INVENTION
The present technology provides a boiler system and an operating method, in which the boiler system includes a room controller that changes a temperature of hot water discharged from a boiler and a set temperature of hot water displayed on the room controller according to a difference between the set temperature of hot water set by a user and a temperature of direct water supply, thereby improving convenience of use of hot water by the user.
In addition, various effects directly or indirectly grasped by the text can be provided.
Drawings
Fig. 1 is a diagram illustrating a structure of a boiler system to which a room controller is applied according to an embodiment of the present invention.
Fig. 2 is a diagram showing the structure of a room controller according to an embodiment of the present invention.
Fig. 3 is a diagram showing a flowchart for explaining an action method of a room controller according to an embodiment of the present invention.
Detailed Description
Hereinafter, some embodiments of the present invention will be described in detail with reference to the accompanying exemplary drawings. Note that, when reference numerals are given to constituent elements of respective drawings, the same reference numerals are given to the same constituent elements as much as possible even when displayed on different drawings. In describing the embodiments of the present invention, when it is determined that specific descriptions related to related known structures or functions will hinder understanding of the embodiments of the present invention, detailed descriptions thereof will be omitted.
In describing the structural elements of the embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. Such terms are only used to distinguish one structural element from another structural element, and the nature, order, sequence, and the like of the corresponding structural elements are not limited by the terms. Furthermore, unless otherwise defined, all terms, including technical or scientific terms, used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Hereinafter, an embodiment of the present invention will be described specifically with reference to fig. 1 to 3.
Fig. 1 is a diagram showing a structure of a boiler hot water system to which a room controller is applied according to an embodiment of the present invention.
Referring to fig. 1, a boiler hot water system may include a boiler 10 and a room controller 20. The boiler hot water system may also include a plurality of water slugs (e.g., slug 1, slug 2).
The boiler 10 may heat the heating exchange water flowing in from the heating pipe and supply the heated water as heating supply water to the heating pipe. At this time, the boiler 10 may heat the heating exchange water by using the heat according to the control of the room controller 20.
Further, the boiler 10 may heat the straight supply water and supply the heated water as hot water to the plurality of hydrants. At this time, the boiler 10 may heat the direct supply water using heat according to the control of the room controller 20.
The boiler 10 may include a burner 11, a hot water supply heat exchanger 12, a temperature sensor 13, a pump 14, and a three-way valve 15.
The burner 11 may heat the heating exchange water supplied from the pump 14 and supply the heated water to the three-way valve 15.
In this case, the burner 11 may change the amount of heat for heating the heating exchange water according to the control of the room controller 20.
The hot water supply heat exchanger 12 may heat the direct water supply and supply the hot water to a plurality of water plugs.
At this time, the hot water supply heat exchanger 12 may change the amount of heat for heating the direct water supply according to the room controller 20.
For example, the higher the hot water set temperature of the room controller 20, the more the hot water supply heat exchanger 12 can increase the amount of heat to heat the direct supply water.
On the other hand, the lower the set hot water temperature of the room controller 20 is, the lower the amount of heat of the hot water supply heat exchanger 12 can be made to reduce the amount of heat of heating the direct water supply.
The temperature sensor 13 may sense the temperature of the direct supply water and provide the sensed temperature of the direct supply water to the room controller 20.
The pump 14 can discharge the heating supply water (heated water) discharged from the three-way valve 15 to the heating pipe, and can supply the heating supply water (cooled water) circulated in the heating pipe and returned to the boiler 10 to the burner 11 by flowing the heating supply water.
The three-way valve 15 may supply the heated water, which is discharged from the burner 11 or the hot water supply heat exchanger 12, to the heating pipe as heating supply water according to the control of the room controller 20 or a boiler controller (not shown).
The room controller 20 may include a display 21, a temperature adjustment knob 22, and a plurality of function buttons 23-1, 23-2, 23-3, 23-4.
The room controller 20 shown in fig. 1 shows a configuration constituting an external appearance of the room controller 20, and an internal configuration of the room controller 20 is explained in fig. 2.
The display part 21 may include a display, and may provide the indoor set temperature and the hot water set temperature set by the user to the user as visual information.
The temperature adjustment knob 22 can set the indoor temperature and the hot water temperature according to the operation mode of the room controller 20. In this case, in fig. 1, the description has been given by taking as an example a structure in which the user uses a knob that is rotated left and right when setting the indoor temperature and the hot water temperature, but the temperature adjustment knob may also function as a substitute for the temperature adjustment knob.
The plurality of function buttons 23-1, 23-2, 23-3, 23-4 may be configured to allow a user to select an operation mode of the boiler 10.
For example, the plurality of function buttons 23-1, 23-2, 23-3, 23-4 may include an indoor temperature setting button 23-1 capable of setting an indoor temperature, a warming button 23-2 capable of operating the boiler 10 for warming purposes, a hot water button 23-3 capable of setting a hot water temperature and operating the boiler for hot water exclusive purposes, and an out button 23-4 capable of minimizing the operation of the boiler 10.
The room controller 20 according to an embodiment of the present invention may be a technique in the case where a user sets a temperature of hot water. At this time, the room controller 20 can set the hot water set temperature by the hot water adjustment knob 22 in a state that the hot water button (23-3) is pressed by the user.
Fig. 2 is a diagram showing the structure of a room controller according to an embodiment of the present invention.
Referring to fig. 2, the room controller 20 may include a display part 21, a temperature adjustment knob 22, a function selection button 23, a communication part 24, an indoor temperature detection part 25, a memory 26, and a control part 27.
The display unit 21 may be configured to provide the operating states of the boiler 10 and the room controller 20 to the user as visual information.
For example, the display unit 21 may provide the operating states of the boiler 10 and the room controller 20 to the user as visual information based on the information provided from the control unit 27.
To illustrate in more detail, the display unit 21 may provide the hot water set temperature set by the user to the user as visual information when the user sets the hot water temperature.
The temperature adjustment knob 22 may be configured to be operated when the user sets the indoor temperature or the hot water temperature, and may supply the temperature set by the user to the control unit 27.
The function selection button 23 may include a plurality of function buttons 23-1, 23-2, 23-3, 23-4 of fig. 1, and information of the button pressed by the user may be provided to the control part 27.
The communication unit 24 is configured to enable communication between the control unit 27 and the boiler 10, and is capable of receiving information (including the direct water supply temperature) regarding the operation of the boiler, which is transmitted from the boiler 10, and transmitting boiler control information, which is supplied from the control unit 27, to the boiler 10. At this time, the boiler control information may include an indoor set temperature and a hot water set temperature. In particular, the set temperature of the hot water may be transmitted from the control unit 27 to the boiler 10 as set temperature information via the communication unit 24.
The indoor temperature detector 25 may detect the temperature of the room, which is the location where the room controller 20 is installed, and supply the detected temperature to the controller 27.
The memory 26 may store information supplied from the control section 27 and supply the stored information to the control section 27.
At this time, the memory 26 may store the operation state information of the boiler 10 obtained from the control unit 27 and information necessary for controlling the boiler 10, such as the indoor temperature and the hot water temperature set by the user, and supply the information selected by the control unit 27 among the stored information to the control unit 27.
The control unit 27 can generate information for controlling the operation of the boiler 10, information for providing to the display unit 21, and information for storing in the memory 26, based on the boiler operation state information provided from the communication unit 24 and the information provided from the temperature adjustment knob 22, the function selection button 23, the indoor temperature detection unit 25, and the memory 26.
For example, the control unit 27 may supply the calculated information on the set hot water temperature to the boiler 10 and the display unit 21 based on the direct water temperature supplied from the boiler 10 and the set hot water temperature set by the user.
To illustrate in more detail, if the difference between the direct water temperature and the hot water set temperature is within the first range, the control part 27 may increase the hot water set temperature set by the user by a preset temperature and provide it to the boiler 10 and the display part 21.
The control part 27 may increase the hot water set temperature by a preset temperature if the difference between the direct water temperature and the hot water set temperature is less than 20 degrees, and provide information on the increased hot water set temperature to the boiler 10 and the display part 21.
Further, if the difference between the direct water temperature and the hot water set temperature is within the second range, the control part 27 may provide information on the hot water set temperature set by the user to the boiler 10 and the display part 21.
The control part 27 may provide information on the set temperature of the hot water to the boiler 10 and the display part 21 if the difference between the direct water temperature and the set temperature of the hot water is more than 20 degrees and less than 40 degrees.
Further, if the difference between the direct water temperature and the hot water set temperature is the third range, the control part 27 may lower the hot water set temperature set by the user by a preset temperature and supply it to the boiler 10 and the display part 21.
If the difference between the direct water temperature and the hot water set temperature is 40 degrees or more, the control part 27 may lower the hot water set temperature set by the user by a preset temperature and supply it to the boiler 10 and the display part 21.
The room controller 20 according to the embodiment of the present invention configured as above may include the following action features.
The boiler 10 is marketed after the maximum combustion heat capable of heating hot water is determined.
The boiler 10 may heat the direct supply water using heat corresponding to a difference between the direct supply water temperature and the hot water set temperature and supply the direct supply water as hot water to the hydrant.
For example, the maximum combustion heat of the boiler 10 is 19000kcal/h and the capacity of the pressure reducing ring thereof is 8.6 Lpm.
In this case, the amount of heat consumed by the boiler 10 to heat the direct supply water so that the temperature of the direct supply water reaches the hot water set temperature may be proportional to the difference between the direct supply water temperature and the hot water set temperature and proportional to the flow rate of the direct supply water supplied to the boiler 10.
Therefore, an equation for calculating the amount of heat that the boiler 10 should consume to heat the straight feed water in order to make the temperature of the straight feed water reach the hot water set temperature may be as follows.
(set temperature of hot water-direct water supply temperature) direct water supply flow (volume of pressure reducing ring 60) required heat quantity
At this time, as for the capacity of the pressure reducing ring, the flow rate per minute can be expressed in Lpm, and thus is converted into the flow rate per hour by multiplying 60.
If the temperature of the direct water is 5 degrees and the set temperature of the hot water set by the user is 45 degrees, the amount of heat required by the boiler 10 to raise the temperature of the water of 5 degrees to 45 degrees is calculated as (45-5) × 8.6 × 60 ═ 20640kcal/h (required heat), which is a value higher than the maximum combustion heat amount (19000 kcal).
At this time, the control unit 27 of the room controller 20 may reduce the hot water set temperature so that the required heat amount does not exceed the maximum combustion heat amount when the required heat amount is larger than the maximum combustion heat amount of the boiler 10 after calculating the required heat amount, and may provide information on the reduced hot water set temperature to the boiler 10 and the display unit 21.
For example, if the set temperature of hot water at 45 degrees is reduced to 40 degrees, the required heat amount is calculated to be (40-5) × 8.6 × 60 ═ 18060kcal/h, and the required heat amount becomes not more than the maximum combustion heat amount (19000 kcal/h).
Therefore, the control part 27 may reduce the hot water set temperature of 45 degrees to 40 degrees and provide information on the reduced hot water set temperature to the boiler 10 and the display part 21.
The user can know the hot water set temperature lower than the hot water set temperature set by the user from the display part as visual information, and can reduce the cold water proportion in the proportion of the hot water and the cold water when the user mixes the cold water and the hot water for use through the water plug.
As a result, the room controller according to the embodiment of the present invention calculates the required heat amount based on the difference between the hot water set temperature and the direct water temperature set by the user, and in the case where the calculated required heat amount exceeds the maximum combustion heat amount of the boiler, lowers the hot water set temperature set by the user and provides it to the user as visual information, thereby enabling guidance for the user to lower the cold water ratio for use.
Therefore, the room controller according to the embodiment of the present invention can eliminate inconvenience to a user due to a sudden drop in the temperature of hot water during use of the hot water.
If the temperature of the direct water supply is 25 degrees and the set temperature of the hot water set by the user is 45 degrees, the required amount of heat required for heating so that the temperature of the 25 degrees direct water supply reaches 45 degrees may be calculated as (45-25) 8.6 60-10320 kcal/h. At this time, the calculated required heat amount is smaller than the maximum combustion heat amount (19000kcal/h), and 8680kcal/h of residual heat amount can exist.
If the remaining heat amount (the difference between the maximum combustion heat amount and the required heat amount) is out of the preset range, the room controller according to the embodiment of the present invention may increase the hot water set temperature and supply it to the boiler 10 and the display part 21.
The user can know that hot water having a temperature higher than the temperature set by the user is generated through the display unit 21 of the room controller 20, and can guide the user to use the hot water by increasing the ratio of cold water when the user uses the cold water and the hot water in a mixed manner.
Therefore, the ratio of hot water in the water (cold water mixed with hot water) used by the user becomes small, and the user can obtain a larger amount of hot water supplied from the boiler 10.
Further, the room controller according to the embodiment of the present invention may provide the hot water set temperature set by the user to the boiler 10 and the display part 21 if the remaining heat amount is within the preset range.
In summary, the room controller according to the embodiment of the present invention may calculate a required heat amount required by the boiler 10 to heat the straight feed water so that the temperature of the straight feed water reaches the hot water set temperature, compare the maximum combustion heat amount of the boiler with the required heat amount to change the hot water set temperature, and may provide the changed hot water set temperature as visual information to the user through the display part.
As a result, since the maximum combustion heat amount of the boiler and the flow rate of the direct water are fixed values, the control unit of the room controller can be configured to change the hot water set temperature in accordance with the difference between the temperature of the direct water and the hot water set temperature.
For example, in the case where the maximum combustion heat amount of the boiler is 19000kcal/h and the direct water supply flow rate is 8.6Lpm, if the difference between the hot water set temperature and the direct water supply temperature is within the first range (less than 30 degrees), the control part 27 may increase the hot water set temperature by a preset temperature and supply the same to the boiler 10 and the display part 21.
To describe in more detail, if it is assumed that the hot water set temperature is 45 degrees and the direct water temperature is 25 degrees, regarding the control part 27, since the difference between the hot water set temperature and the direct water temperature is 25 degrees, the control part 27 may increase and supply the hot water set temperature of 45 degrees to the boiler 10 and the display part 21.
In addition, in the case where the maximum combustion heat amount of the boiler is 19000kcal/h and the direct water supply flow rate is 8.6Lpm, if the difference between the hot water set temperature and the direct water supply temperature is within a second range (30 degrees or more and less than 40 degrees), the control part 27 may supply the hot water set temperature to the boiler 10 and the display part 21.
Further, in the case where the maximum combustion heat amount of the boiler is 19000kcal/h and the direct water supply flow rate is 8.6Lpm, if the difference between the hot water set temperature and the direct water supply temperature is the third range (40 degrees or more), the control part 27 may decrease the hot water set temperature and supply it to the boiler 10 and the display part 21.
At this time, the first range, the second range, and the third range may be different according to the maximum combustion heat amount and the direct water flow amount of the boiler.
Fig. 3 is a diagram showing a flowchart for explaining an action method of a room controller according to an embodiment of the present invention.
An operating method of a room controller according to an embodiment of the present invention may include a hot water usage sensing step (S1), a first range determining step (S2), a first hot water set temperature displaying step (S3), a second range determining step (S4), a second hot water set temperature displaying step (S5), and a third hot water set temperature displaying step (S6).
The hot water use sensing step (S1) may be a step of sensing an action of the hot water supply heat exchanger 12 or sensing that the hot water button 23-3 of the room controller 20 is pressed.
In the hot water usage sensing step (S1), if hot water usage is sensed (yes), a first range judgment step (S2) may be performed.
The first range determination step (S2) may include the step of determining whether a difference between the direct water temperature and the hot water set temperature is within a first range (e.g., less than 30 degrees).
If the difference between the direct water temperature and the hot water set temperature is within the first range (YES), a first hot water set temperature display step (S3) may be performed.
On the other hand, if the difference between the direct water temperature and the hot water set temperature exceeds the first range (30 degrees or more) ("no"), the second temperature range determination step (S4) may be performed.
The first hot water set temperature display step (S3) may include the steps of increasing the hot water set temperature by a preset temperature and displaying the increased temperature set temperature on the display unit 21.
The second temperature range determination step (S4) may include the step of determining whether the difference between the direct water temperature and the hot water set temperature is within a second range (e.g., 30 degrees or more and less than 40 degrees).
If the difference between the direct water temperature and the hot water set temperature is within the second range (YES), a second hot water set temperature display step (S5) may be performed.
On the other hand, if the difference between the direct water temperature and the hot water temperature exceeds the second range (40 degrees or more), the third hot water set temperature display step (S6) may be performed.
The second hot water set temperature display step (S5) may include the step of displaying the hot water set temperature on the display part 21.
The third hot water set temperature display step (S6) may include the step of lowering the hot water set temperature by a preset temperature and displaying the lowered hot water set temperature on the display part 21.
At this time, the information on the set temperature of the hot water displayed on the display unit 21 may be provided to the boiler 10 in each of the first to third hot water set temperature display steps (S3, S5, S6).
The above description is only an exemplary illustration of the technical idea of the present invention, and various modifications and variations can be made by those skilled in the art to which the present invention pertains without departing from the essential characteristics of the present invention.
Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention but to illustrate the present invention, and the scope of the technical spirit of the present invention is not limited by such embodiments. The scope of the invention should be construed in accordance with the appended claims, and all technical ideas within the scope equivalent to the claims should be construed as being included in the scope of the invention.
Claims (12)
1. A boiler system, comprising:
a boiler that heats the direct feed water such that a temperature of the direct feed water reaches a hot water set temperature; and
a room controller which determines whether to change the hot water set temperature based on the hot water set temperature and the temperature of the direct supply water, and provides set temperature information according to the determined result to a user and the boiler.
2. The boiler system according to claim 1,
the room controller determines whether to change the hot water set temperature based on the hot water set temperature, the temperature of the direct supply water, the maximum combustion heat of the boiler, and the direct supply water flow rate,
the once-through water flow rate includes a flow rate of the once-through water flowing into the boiler.
3. The boiler system according to claim 2,
the room controller calculates a required heat amount that the boiler should consume in a process in which the direct supply water reaches the hot water set temperature, based on the hot water set temperature, the temperature of the direct supply water, and the direct supply water flow rate, and compares the required heat amount with the maximum combustion heat amount to determine whether to change the hot water set temperature.
4. The boiler system according to claim 3,
if the required heat exceeds the maximum combustion heat or the remaining heat calculated based on the required heat and the maximum combustion heat exceeds a preset range, the room controller determines that the set temperature of the hot water needs to be changed, and provides the set temperature information after the set temperature of the hot water is changed to the user.
5. The boiler system according to claim 4,
if the required heat exceeds the maximum combustion heat, the room controller decreases the hot water set temperature and provides the decreased hot water set temperature as the set temperature information to the user.
6. The boiler system according to claim 4,
the room controller subtracts the maximum combustion heat amount from the required heat amount to calculate the remaining heat amount,
and if the residual heat exceeds the preset range, the room controller increases the set hot water temperature and provides the increased set hot water temperature as the set temperature information for the user.
7. The boiler system according to claim 4,
and if the residual heat is within a preset range, the room controller judges that the set hot water temperature does not need to be changed, and provides the set hot water temperature as the set temperature information for the user.
8. The boiler system according to claim 4,
the room controller includes:
a communication section that communicates with the boiler;
a control unit that calculates the required heat amount and the remaining heat amount and changes the set temperature of the hot water; and
a display part which provides the set temperature of the hot water to the user as visual information,
providing information on the changed set temperature of the hot water to the boiler as the set temperature information through the communication part.
9. A method of operating a boiler system, comprising:
a hot water usage sensing step for sensing hot water usage;
a first range determination step of determining whether a difference between a direct water supply temperature and a hot water set temperature is within a first range if the hot water usage is sensed in the hot water usage sensing step; and
a first hot water set temperature display step of increasing the hot water set temperature and providing it as visual information to a user if it is determined in the first range determination step that the difference between the direct water supply temperature and the hot water set temperature is within a first range.
10. The method of operating a boiler system according to claim 9,
further comprising: a second range determination step of determining whether a difference between the direct water supply temperature and the hot water set temperature is within a second range if the difference between the direct water supply temperature and the hot water set temperature in the first range determination step is out of a first range.
11. The method of operating a boiler system according to claim 10,
further comprising: a second hot water set temperature display step of providing the hot water set temperature as visual information to a user if it is determined in the second range determination step that the difference between the direct water supply temperature and the hot water set temperature is within a second range.
12. The method of operating a boiler system according to claim 11,
further comprising: a third hot water set temperature display step of decreasing the hot water set temperature and providing the decreased hot water set temperature as visual information to a user if it is determined in the second range determination step that the difference between the direct water supply temperature and the hot water set temperature is out of a second range.
Applications Claiming Priority (2)
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| KR1020200186355A KR102543205B1 (en) | 2020-12-29 | 2020-12-29 | Boiler system and operating method |
| KR10-2020-0186355 | 2020-12-29 |
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| CN114688600A true CN114688600A (en) | 2022-07-01 |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR20220094778A (en) | 2022-07-06 |
| CN114688600B (en) | 2023-10-20 |
| KR102543205B1 (en) | 2023-06-14 |
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