EP2868994A1 - Chaudière ayant une unité de commande de température de gaz d'échappement utilisant un capteur de température et procédé pour sa commande - Google Patents

Chaudière ayant une unité de commande de température de gaz d'échappement utilisant un capteur de température et procédé pour sa commande Download PDF

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Publication number
EP2868994A1
EP2868994A1 EP20130787441 EP13787441A EP2868994A1 EP 2868994 A1 EP2868994 A1 EP 2868994A1 EP 20130787441 EP20130787441 EP 20130787441 EP 13787441 A EP13787441 A EP 13787441A EP 2868994 A1 EP2868994 A1 EP 2868994A1
Authority
EP
European Patent Office
Prior art keywords
temperature
boiler
exhaust gas
temperature sensor
exhaust
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20130787441
Other languages
German (de)
English (en)
Other versions
EP2868994A4 (fr
Inventor
Chang Heoi Heo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kyungdong Navien Co Ltd
Original Assignee
Kyungdong Navien Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kyungdong Navien Co Ltd filed Critical Kyungdong Navien Co Ltd
Publication of EP2868994A1 publication Critical patent/EP2868994A1/fr
Publication of EP2868994A4 publication Critical patent/EP2868994A4/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • 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
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/0026—Domestic hot-water supply systems with conventional heating means
    • 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
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
    • F24H1/145—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form 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
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/215—Temperature of the water before 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
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/219—Temperature of the water after 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
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/235—Temperature of exhaust gases
    • 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
    • F24H15/355—Control of heat-generating means in heaters
    • F24H15/36—Control of heat-generating means in heaters of burners

Definitions

  • the present invention relates to a boiler capable of using an exhaust pipe of a PVC material, and more particularly, to a boiler having an exhaust gas temperature control unit using a temperature sensor which may be equipped inside a combustion unit such as the boiler or a water heater to control a temperature of the exhaust gas and may be equipped with an exhaust pipe of a PVC material and a method for controlling the same.
  • a combustion unit is collectively called a boiler or a water heater and is a device which heats water with combustion heat generated by combusting gas or oil and supplies the heated water to an office and heats cold direct water to supply hot water.
  • the combustion unit is equipped with an exhaust pipe through which exhaust gas combusted in and then discharged from a combustion chamber of the combustion unit is discharged. Since houses which are built in North America such as Canada or the United States have a relatively large scale and have boilers or water heaters mainly installed at basements or corners thereof, in order to draw out an intake port and an exhaust portion to the outside thereof, there is a need to connect a plurality of PVC pipes to the intake port and the exhaust port which are drawn out to the outside of the house. When the exhaust pipe of stainless steel is used, there is a problem in that much installation cost may be required and economical feasibility may be degraded.
  • the exhaust pipe since the exhaust pipe does not permit a use of a PVC product as a single item of a product in the country, the exhaust pipe is mainly made of stainless steel; however, the exhaust pipe may be made of PVC at the time of being installed as a complex exhaust system due to a change in relevant regulations from April, 2012 and is scheduled to be changed to use the PVC as a single product from now on.
  • the respective pipes have connection portions which need to be bonded to each other by bond (PVC cement).
  • the PVC pipe is permitted only to products in which the temperature of exhaust gas of the combustion unit is equal to or less than of 65 °C or less. However, there may be a tool using the water heater for heating, and the case in which the discharged exhaust gas exceeds 65 °C frequently occurs. Thus, when the exhaust gas exceeds 65 °C, the PVC pipe or the connected portion of the PVC pipe is melted and therefore the exhaust gas is leaked, thereby causing safety accidents.
  • a separate control unit needs to be installed and therefore a structure may be complicated and cost may be increased, and the installation cost may be increased due to the use of a safe CPVC pipe which may withstand the exhaust gas which reaches about 90 °C.
  • An object of the present invention is to provide a boiler having an exhaust gas temperature control unit using a temperature sensor in which a PVC pipe may be installed at an exhaust port by controlling a temperature of exhaust gas to be equal to or less than 65 °C by measuring a temperature of an inlet of a heat exchanger and a temperature of an outlet of the heat exchanger and a method for controlling the same.
  • a boiler having an exhaust gas temperature control unit using a temperature sensor including: a combustion and exhaust unit configured to include a burner combusting fuel to generate heat, an exhaust port discharging combusting residues outside the boiler, and an exhaust pipe connected to the exhaust port to discharge the combustion residues into the air; a circulation unit configured to circulate hot water to provide hot water and heating to a user; a heat exchange unit configured to absorb the heat generated from the burner to generate hot water and have both ends connected to the circulation unit to supply the hot water to the circulation unit; and a control unit configured to include an outlet temperature sensor installed at an outlet of the heat exchange unit to measure a temperature of the hot water, an inlet temperature sensor installed at an inlet of the heat exchange unit to measure a temperature of cold water introduced from the circulation unit, and a controller calculating temperature values measured by the outlet temperature sensor and the inlet temperature sensor to control whether the boiler is operated.
  • the exhaust pipe may be made of a PVC material.
  • a method for controlling a temperature of exhaust gas using a temperature sensor including: initializing a calculation value of the temperature of the exhaust gas of a controller when the boiler is in an operation condition and thus performs a combustion operation; measuring and storing, by the controller, a temperature of an inlet and a temperature of an outlet of a heat exchanger using an outlet temperature sensor and an inlet temperature sensor; calculating, by the controller, the temperature of the exhaust gas; determining, by the controller, whether the calculated temperature of the exhaust gas exceeds a meltable temperature of the exhaust pipe; controlling, by the controller, a combustion operation to stop if it is determined that the calculated temperature of the exhaust gas exceeds the meltable temperature of the exhaust pipe; and controlling, by the controller, a series of combustion operations to be performed if it is determined that the calculated temperature of the exhaust gas is equal to or less than the meltable temperature of the exhaust pipe.
  • meltable temperature of the exhaust pipe may be 65 °C.
  • the cheap PVC may be used as the exhaust pipe, thereby facilitating the installation, and the existing temperature sensor may perform the control and thus the use of the separate controller is not required, thereby saving the installation cost.
  • a boiler having an exhaust gas temperature control unit using a temperature sensor is configured to include a combustion and exhaust unit 100 configured to combust supplied fuel or discharge combusted smoke, combustion residues, or the like, outside the boiler, a heat exchange unit 200 configured to absorb heat generated from the combustion and exhaust unit 100 to supply hot water, and a circulation unit 400 configured to circulate the hot water supplied from the heat exchange unit 200 and provide the hot water and heating to a user, and a controller 400 configured to control whether the boiler is operated.
  • the combustion and exhaust unit 100 includes an intake port 110 configured to suck air required for combustion, a burner 120 configured to combust fuel to generate heat, an exhaust port 130 configured to discharge the combustion residues, and the like from the burner 120 to the outside of the boiler, and an exhaust pipe 140 configured to be connected to the exhaust port 130 to discharge the exhaust gas into the air.
  • the air required for combustion is transferred to the burner 120 through the intake port 110 and passes through the exhaust port 130 and the exhaust pipe 140 and is then discharged into the air through the heat exchange unit 200.
  • the heat exchange unit 200 absorbs heat generated from the burner 120 to generate hot water and has both ends connected to the circulation unit 300 to supply the hot water to the circulation unit 300.
  • the circulation unit 300 is supplied with the hot water from the heat exchange unit 200 to provide heating and hot water to a user.
  • the circulation unit 300 includes a circulation pump 310 configured to again return used relatively cold water to the heat exchange unit 200 and circulate the cold water.
  • the control unit 400 includes an outlet temperature sensor configured to be installed at an outlet of the heat exchange unit 200 to measure a temperature of hot water, an inlet temperature sensor 420 configured to be installed at an inlet of the heat exchange unit 200 to measure a temperature of cold water introduced from the circulation unit 300, and a controller 430 configured to calculate temperature values measured by the outlet temperature sensor 410 and the inlet temperature sensor 430 to control whether the boiler is operated.
  • the exhaust pipe 140 configured to be connected to the exhaust port 130 to discharge the exhaust gas into the air is made of PVC
  • the exhaust pipe 140 is permitted to be used only within a range of meltable temperature of the exhaust pipe.
  • the exhaust pipe 140 is permitted to be used when the current temperature of the exhaust gas of the combustion unit is equal to or less than about 65 °C.
  • the exhaust gas exceeds 65 °C, the PVC pipe or the connected portion of the PVC pipe is melted and therefore the exhaust gas is leaked, thereby causing safety accidents.
  • the controller 430 calculates the temperature values of the outlet temperature sensor 410 and the inlet temperature sensor 420 to monitor the temperature of the exhaust gas at all times and when the current temperature of the exhaust gas exceeds 65 °C which is the meltable temperature of the exhaust pipe 140 of a PVC material, the burner 120 is turned off to control the temperature of the exhaust gas to stop the combustion and the like, thereby preventing safety accidents from occurring.
  • the re-combustion is performed and therefore the installation is simple due to the use of the exhaust pipe 140 of the PVC material, and the existing temperature sensor and the cheap controller are used and therefore a separate expensive control unit is not required, thereby reducing the installation cost.
  • the controller 430 in the boiler initializes the calculation value of the temperature of the exhaust gas (see S10).
  • controller 430 measures and stores an inlet temperature T1 and an outlet temperature T2 of the heat exchanger using the outlet temperature sensor 410 and the inlet temperature sensor 420 (see S20 and S30).
  • the controller 430 calculates the temperature of the exhaust gas using the following Equation (see S40). Temperature T ⁇ 2 of Inlet of Heat Exchanger + Temperature T ⁇ 1 of Outlet of Heat Exchanger ) / 2
  • the controller 430 determines whether the calculated temperature of the exhaust gas exceeds the meltable temperature of the exhaust pipe 140 and if it is determined that the meltable temperature exceeds the meltable temperature of the exhaust pipe 140, the combustion operation stops to keep the temperature of the exhaust gas at the meltable temperature of the exhaust pipe 140 at all times, such that the exhaust pipe 140 of the PVC material may be used (see S60 and S70).

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Control Of Combustion (AREA)
EP13787441.8A 2012-05-10 2013-04-05 Chaudière ayant une unité de commande de température de gaz d'échappement utilisant un capteur de température et procédé pour sa commande Withdrawn EP2868994A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020120049941A KR101337203B1 (ko) 2012-05-10 2012-05-10 온도센서를 이용한 배기가스 온도 제어장치를 구비하는 보일러 및 그 제어방법
PCT/KR2013/002832 WO2013168897A1 (fr) 2012-05-10 2013-04-05 Chaudière ayant une unité de commande de température de gaz d'échappement utilisant un capteur de température et procédé pour sa commande

Publications (2)

Publication Number Publication Date
EP2868994A1 true EP2868994A1 (fr) 2015-05-06
EP2868994A4 EP2868994A4 (fr) 2016-03-09

Family

ID=49550893

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13787441.8A Withdrawn EP2868994A4 (fr) 2012-05-10 2013-04-05 Chaudière ayant une unité de commande de température de gaz d'échappement utilisant un capteur de température et procédé pour sa commande

Country Status (5)

Country Link
US (1) US20150114314A1 (fr)
EP (1) EP2868994A4 (fr)
KR (1) KR101337203B1 (fr)
CA (1) CA2872880A1 (fr)
WO (1) WO2013168897A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103742965A (zh) * 2013-12-20 2014-04-23 罗林华 一种换热机组
CN107228364A (zh) * 2017-05-09 2017-10-03 威能(无锡)供热设备有限公司 燃气用具系统
CN109210804A (zh) * 2018-10-23 2019-01-15 阿诗丹顿燃具有限公司 一种热水器出水控制系统

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101906220B1 (ko) * 2016-09-19 2018-10-11 린나이코리아 주식회사 보일러의 배기가스온도 제어방법
US11639799B2 (en) * 2020-12-17 2023-05-02 Noritz Corporation Hot water supply device

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103742965A (zh) * 2013-12-20 2014-04-23 罗林华 一种换热机组
CN107228364A (zh) * 2017-05-09 2017-10-03 威能(无锡)供热设备有限公司 燃气用具系统
CN109210804A (zh) * 2018-10-23 2019-01-15 阿诗丹顿燃具有限公司 一种热水器出水控制系统

Also Published As

Publication number Publication date
US20150114314A1 (en) 2015-04-30
KR101337203B1 (ko) 2013-12-05
KR20130126116A (ko) 2013-11-20
EP2868994A4 (fr) 2016-03-09
WO2013168897A1 (fr) 2013-11-14
CA2872880A1 (fr) 2013-11-14

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