US20150300660A1 - Outdoor temperature reset control method for boiler using external network - Google Patents

Outdoor temperature reset control method for boiler using external network Download PDF

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Publication number
US20150300660A1
US20150300660A1 US14/441,168 US201314441168A US2015300660A1 US 20150300660 A1 US20150300660 A1 US 20150300660A1 US 201314441168 A US201314441168 A US 201314441168A US 2015300660 A1 US2015300660 A1 US 2015300660A1
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United States
Prior art keywords
outdoor temperature
boiler
compensation control
room controller
control method
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Abandoned
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US14/441,168
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English (en)
Inventor
Jun Ho Kim
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Kyungdong One Corp
Kyung Dong One Corp
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Kyungdong One Corp
Kyung Dong One Corp
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Assigned to KYUNGDONG ONE CORPORATION reassignment KYUNGDONG ONE CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KIM, JUN HO
Publication of US20150300660A1 publication Critical patent/US20150300660A1/en
Abandoned legal-status Critical Current

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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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/136—Defrosting or de-icing; Preventing freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/156—Reducing the quantity of energy consumed; Increasing efficiency
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/174—Supplying heated water with desired temperature or desired range of temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/258—Outdoor temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/281—Input from user
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/305—Control of valves
    • F24H15/32—Control of valves of switching valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/40—Control of fluid heaters characterised by the type of controllers
    • F24H15/414—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
    • F24H15/45—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based remotely accessible
    • F24H15/464—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based remotely accessible using local wireless communication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/128—Preventing overheating

Definitions

  • the present invention relates to a method for controlling a boiler system in accordance with the outdoor temperature supplied from an external network, and more specifically to a compensation control method of the boiler according to an outdoor temperature using the external network, which receives the outdoor temperature information from an integration server without needing to install a separate outdoor temperature sensor by establishing a system capable of communicating between a room controller to which a wireless communication module is mounted and an integration server, so as to carry out compensation control of the set temperature according to the outdoor temperature in order to control the amount of heat supplied and to prevent icicles from forming on an exhaust pipe even at below zero weather.
  • Ondol heating can be largely classified into local heating system, district heating system and central heating system.
  • heat gain and heat loss of the building must be equal for an ideal control to take place.
  • the heat gain and heat loss processes are dynamic processes which are constantly changed due to outdoor temperature, solar radiation, infiltration, internal heat generation, or the like, thus there is a need to control the amount of heat supplied indoors.
  • temperature of the heating water supply is supplied by setting different seasonal criteria, with it generally being 60-80° C. for winter.
  • the effect of the seasonal outdoor temperature is considered, it does not take into account the effect of the dynamic range of the outdoor temperature on the temperature setting of the heating water supply, in the same season. Further, it does not consider day and night, southern and northern, building characteristics (response characteristics to an outdoor temperature), etc., resulting in many problematic instances such as overheating phenomenon and energy loss.
  • the existing public Patent No. 10-1109648 discloses an outdoor temperature peristaltic flow control device having a supply line through which hot water is supplied; a hot water pipeline that is branched to each room from the supply line so that the latent heat of the hot water is heat exchanged with each room; a return water line connected to each hot water pipeline through which heat exchanged hot water is returned; an outdoor temperature sensor provided to measure the outdoor air temperature; a controller outputting a control signal in accordance with the outdoor temperature received from the outdoor temperature sensor; and a variable flow valve installed on the supply line or the return line, and which receives the control signal from the controller to control the flow of the hot water flowing inside the pipe.
  • the air introduced from outside through an air supply pipe is supplied to a burner together with fuel using an air blower, and the exhaust gas generated by combustion at the burner is heat exchanged with the heating water transferred from a heat exchanger via a circulation pump, then released through the exhaust pipe into the atmosphere outside the boiler.
  • the outdoor temperature is very low such as during winter, temperature of the exhaust pipe terminal is greatly decreased and thereby the exhaust gas can be below the dew point temperature (generally 40-55 degrees, the temperature at which water vapor contained in the exhaust gas starts to condense). In this case, water vapor is condensed in the exhaust pipe terminal.
  • the existing registered Korean Patent No. 10-0805551 discloses a method of preventing condensation of a boiler exhaust pipe comprising the steps of operating the boiler to carry out combustion; determining whether or not the outdoor temperature measured by the outdoor temperature sensor is below the preset temperature; switching the three-way valve to the hot water position if the measured outdoor temperature is below the set temperature; extinguishing the burner if the heating water pipe temperature reaches the preset temperature; and operating the circulation pump and the air blower to carry out heat exchange at the main heat exchanger, and discharging the hot air through the exhaust pipe.
  • Patent Literature 1 Korean Patent No. 10-1109648
  • Patent Literature 2 Korean Patent No. 10-0805551
  • the present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a compensation control method of a boiler according to an outdoor temperature using an external network, which establishes a system providing real-time outdoor temperature of the relevant area by datafying user's address information and outdoor temperature information at the integration server without having to equip a separate outdoor temperature sensor.
  • the integration server may further comprise the step of identifying the location information of the room controller using the IP address of the wireless router and storing the location information of the room controller to the database.
  • the compensation control of the boiler according to the outdoor temperature of the above step (d) can first include controlling the flow of the hot water supply by adjusting the opening degree of the variable flow valve according to the change in outdoor temperature.
  • the temperature of the heating water supply can be controlled according to change in outdoor temperature using the variable constant (K-factor) value that is in accordance with a preset outdoor temperature.
  • the three-way valve may be switched to the hot water position if the outdoor temperature is below zero so that the expansion tank can store thermal energy which can prevent freezing of the exhaust pipe.
  • each boiler receives the outdoor temperature of the relevant area from an integration server through the IP address information or the address information entered by the user.
  • heating quantity can be actively controlled according to change in outdoor temperature so as to prevent overheating or energy loss and to always perform ideal heating, and icicles can be prevented from forming on the exhaust pipe even at temperatures below zero so as to prevent human and material damages caused by falling icicles.
  • FIG. 1 is a diagram showing an overall system configuration according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of the outdoor temperature peristaltic flow control device according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of an exhaust passage structure for preventing condensation at the exhaust pipe according to an embodiment of the present invention.
  • FIG. 4 is a graph showing the relationship between the set temperature of the heating water supply and the outdoor temperature as a change in K-factor value according to an embodiment of the present invention.
  • the compensation control method of a boiler according to an outdoor temperature using an external network is largely divided into the steps of (a) registering a room controller ( 110 ) of a boiler ( 100 ) to an integrated server ( 130 );
  • the room controller installed in the house is equipped with a wireless communication module ( 111 ), thus wireless communication is possible, and a unique number is entered for each product.
  • the room controller ( 110 ) is connected to the wireless router ( 120 ) installed in the house the unique number is transmitted using wireless communication, and the wireless router receives the unique number and transmits it again to the integration server ( 130 ).
  • the integration server ( 130 ) is equipped with an authentication server ( 131 ) and a database ( 135 ) to perform the authentication step of analyzing the unique number received and determining whether or not it is correct, and stores the unique number to the database ( 135 ) after authentication is complete.
  • the step of transmitting the outdoor temperature information from the integration server ( 130 ) to the room controller ( 110 ) is possible by two methods.
  • the first method involves the user or the installer inputting the address information, in which the user or the installer accesses the integration server ( 130 ) through a terminal ( 140 ) such as a Smartphone, PC, and laptop to input the unique number, and then inputs the address information of the area where the room controller ( 110 ) is installed.
  • the address information is stored in the database ( 135 ) together with the unique number.
  • the compensation control function according to an outdoor temperature is set at the room controller ( 110 )
  • the address information and the unique number of the room controller ( 110 ) is searched at the service server ( 132 ), which searches and updates the outdoor temperature of each area nationwide in real-time, to transmit real-time outdoor temperature information of the relevant area to the room controller ( 110 ) at the scheduled time.
  • the second method involves the user not inputting the address information, in which the integration server ( 130 ) extracts the IP address of the wireless router ( 120 ), which has performed wireless communication with the room controller ( 110 ), to identify approximate access area using Korea Network Information Center (kmic: http://), etc. and store the relevant location information to the database ( 135 ).
  • the subsequent process of transmitting the outdoor temperature information to the room controller ( 110 ) is identical to above.
  • the room controller ( 110 ) which has received the outdoor temperature information in the previous step transmits the outdoor temperature information to the controller ( 101 ) of the boiler ( 100 ) through a wire communication method such as RS485 to perform compensation control in accordance with the outdoor temperature.
  • the room controller ( 110 ) is stated above as an essential element during the process of transmitting the outdoor temperature information from the integration server ( 130 ) to the controller ( 101 ), the room controller ( 110 ) should be understood to include all devices, such as a panel part attached to the boiler which can transmit and receive outdoor temperature information in a similar method to above.
  • the compensation control according to the outdoor temperature has been proposed in various forms in the prior art.
  • embodiments relating to the control method for improving energy efficiency by controlling the amount of heat supplied according to the outdoor temperature and the control method to prevent icicles from forming at the exhaust pipe when the outdoor temperature is below zero will be described.
  • the outdoor temperature peristaltic flow control device largely consists of a supply pipe ( 210 ), a hot water supply header ( 220 ), a hot water pipeline ( 230 ), a hot water return header ( 240 ), a return pipe ( 250 ) and a variable flow valve ( 260 ).
  • the hot water pipeline ( 230 ) is branched into each room from the hot water supply header ( 220 ) so that the latent heat of the hot water is heat exchanged with each room.
  • the hot water is heat exchanged with the floor while it flows along the hot water pipeline ( 230 ), thereby heating the floor. Then, the hot water is cooled and returned through the hot water return header ( 240 ).
  • the controller ( 101 ) receives outdoor temperature information output by the room controller ( 110 ), and controls the variable flow valve ( 260 ) by outputting a control signal in accordance with the outdoor temperature.
  • variable flow valve ( 260 ) is installed on the supply pipe ( 210 ) or the return pipe ( 250 ), and controls the flow of hot water flowing in the supply pipe ( 210 ) or the return pipe ( 250 ) upon receiving the control signal from the controller ( 101 ).
  • the controller ( 101 ) controls the variable flow valve ( 260 ) to lower the flow of the hot water.
  • the controller ( 101 ) controls the variable flow valve ( 260 ) to lower the flow of the hot water.
  • velocity of the hot water supply decreases leading to more than enough time for heat exchange and thereby heat efficiency increases.
  • heating control is performed by the controller ( 101 ) receiving the outdoor temperature information output by the room controller ( 110 ) and determining the temperature of the heating water supply according to the variable constant (K-factor) that is in accordance with the preset outdoor temperature.
  • K-factor variable constant
  • the heating water supply temperature that is determined is limited to maximum of 80 degrees, and the boiler operation is stopped if it is below 30 degrees. Thereby it is possible to reduce unnecessary heating energy consumption compared to conventional proportional control methods.
  • FIG. 4 is a commonly used graph showing the relationship between the set temperature of the heating water supply and the outdoor temperature according to the K-factor, and the K-factor is set to an initial value of 1 which is the value calculated by applying the compensation rate according to the outdoor temperature, but can be changed by the installer or the user.
  • combustion occurs by operating the boiler.
  • the controller ( 101 ) switches a three-way valve ( 390 ) to a hot water position to make the heating water flow to the hot water heat exchanger ( 380 ) side by blocking the heating water from flowing into the heating pipe ( 310 ) side where heat exchange with the floor occurs.
  • combustion usually occurring at the burner ( 330 ) maintains its condition.
  • the heating water circulates a closed circuit consisting of a circulation pump ( 350 ), a main heat exchanger ( 340 ), a three-way valve ( 390 ), a hot water heat exchanger ( 380 ) and an expansion tank ( 370 ) by the operation of the circulation pump ( 350 ). It is preferable to have a flow structure in which the heating water passes the expansion tank ( 370 ).
  • the expansion tank ( 370 ) can typically store about 4-8 liters of heating water, and when combustion occurs with the three-way valve ( 390 ) switched to the hot water position the heating water circulating the closed circuit is heated, thereby the expansion tank ( 370 ) gains the function of storing thermal energy which can prevent freezing of the exhaust pipe ( 360 ) terminal.
  • the temperature of the heating water flowing inside the pipe is detected by the heating water temperature measurement sensor (not shown in the figure), and the controller ( 101 ) determines whether or not the measured temperature of the heating water reaches the preset temperature. If it has reached the preset temperature, the controller judges it as the temperature at which freezing of the exhaust pipe ( 360 ) terminal can be prevented and performs the extinguishing process.
  • temperature of the heating water which is preset to perform extinguishing of the burner ( 330 ) is preferable to be the maximum temperature that can be raised by the heating water circulating closed circuit including the expansion tank ( 370 ) with the three-way valve ( 390 ) switched to the hot water position.
  • the maximum temperature can be determined via an experiment if the flow structure through which the heating water circulates is specified.
  • the circulation pump ( 350 ) and the air blower ( 320 ) When combustion is performed the circulation pump ( 350 ) and the air blower ( 320 ) operates, and the air transferred by the air blower ( 320 ) is changed to hot air by heat exchanging with the heating water heated at the main heat exchanger ( 340 ) in the above process. This air then prevents freezing of the exhaust pipe ( 360 ) terminal by being in contact with the vapor or condensed water droplets at the exhaust pipe ( 360 ) terminal when it is discharged outside through the exhaust pipe ( 360 ).

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Hardware Design (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
US14/441,168 2012-11-30 2013-09-13 Outdoor temperature reset control method for boiler using external network Abandoned US20150300660A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020120137744A KR101404121B1 (ko) 2012-11-30 2012-11-30 외부망을 이용한 보일러의 외기온도 보상제어 방법
KR10-2012-0137744 2012-11-30
PCT/KR2013/008321 WO2014084486A1 (ko) 2012-11-30 2013-09-13 외부망을 이용한 보일러의 외기온도 보상제어 방법

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US20150300660A1 true US20150300660A1 (en) 2015-10-22

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US14/441,168 Abandoned US20150300660A1 (en) 2012-11-30 2013-09-13 Outdoor temperature reset control method for boiler using external network

Country Status (6)

Country Link
US (1) US20150300660A1 (ko)
EP (1) EP2933581A4 (ko)
KR (1) KR101404121B1 (ko)
CN (1) CN104797891B (ko)
RU (1) RU2600663C1 (ko)
WO (1) WO2014084486A1 (ko)

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US20160169539A1 (en) * 2014-12-15 2016-06-16 Sridhar Deivasigamani Weather forecast and prediction based temperature control
CN111735101A (zh) * 2020-06-28 2020-10-02 武汉施尔诺新能源科技有限公司 一种二联供壁挂炉联动补偿系统

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CN106205095A (zh) * 2016-08-26 2016-12-07 湖南索拓科技有限公司 一种基于无线射频通讯的水地暖系统和温控方法
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CN108534366A (zh) * 2018-03-09 2018-09-14 万家乐热能科技有限公司 一种基于网络的壁挂炉控制系统
CN108980986A (zh) * 2018-09-10 2018-12-11 天津大学 智能家庭恒温供暖系统
CN109373600B (zh) * 2018-10-15 2019-12-03 珠海格力电器股份有限公司 一种热水器及其控制方法

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