WO2019216635A1 - Chaudière combinée pour eau chaude et chauffage et son procédé de commande - Google Patents

Chaudière combinée pour eau chaude et chauffage et son procédé de commande Download PDF

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Publication number
WO2019216635A1
WO2019216635A1 PCT/KR2019/005480 KR2019005480W WO2019216635A1 WO 2019216635 A1 WO2019216635 A1 WO 2019216635A1 KR 2019005480 W KR2019005480 W KR 2019005480W WO 2019216635 A1 WO2019216635 A1 WO 2019216635A1
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WO
WIPO (PCT)
Prior art keywords
heating
hot water
water
heat exchanger
temperature
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Application number
PCT/KR2019/005480
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English (en)
Korean (ko)
Inventor
허창회
송용민
김시환
Original Assignee
주식회사 경동나비엔
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
Priority claimed from KR1020190053234A external-priority patent/KR102449159B1/ko
Application filed by 주식회사 경동나비엔 filed Critical 주식회사 경동나비엔
Priority to US17/054,076 priority Critical patent/US11473787B2/en
Priority to CN201980031268.2A priority patent/CN112189118A/zh
Publication of WO2019216635A1 publication Critical patent/WO2019216635A1/fr

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    • 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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/48—Water heaters for central heating incorporating heaters for domestic water
    • F24H1/52—Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic water
    • 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
    • F24H15/212—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
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/305—Control of valves
    • F24H15/31—Control of valves of valves having only one inlet port and one outlet port, e.g. flow rate regulating 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
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/335—Control of pumps, e.g. on-off control
    • F24H15/34—Control of the speed of pumps
    • 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
    • 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

Definitions

  • the present invention relates to a heating hot water combined use boiler and a control method thereof, and more particularly, to a heating hot water combined use boiler and a control method thereof capable of simultaneously using heating and hot water without stopping heating even when a request for simultaneous use of heating and hot water is required. It is about.
  • Boilers are used for heating or hot water in homes and public buildings. Typically, boilers use oil or gas as fuel to burn through a burner, and then heat water using combustion heat generated during the combustion process, and circulate the heated water to the room for heating or as hot water as needed. .
  • Conventional heating hot water boiler (1) is a main heat exchanger (2) for heating the heating water by the combustion heat of the burner, three-way valve (4) for switching the flow path to the heating mode or hot water mode, and the boiler circulation pump for circulating water (5) and a hot water heat exchanger 3 for supplying hot water by heat exchange.
  • the conventional heating hot water combined boiler 1 operates the boiler circulation pump 5 to return the heating water to the main heat exchanger 2 through the heating water return pipes L1 and L2, and is heated in the main heat exchanger 2.
  • Water is supplied to the three-way valve through the connecting pipe (L3).
  • the three-way valve 4 is switched to the heating water supply pipe L4 to supply the heating water that is heat-exchanged by the combustion heat of the burner.
  • the three-way valve (4) is switched to the connecting pipe (L5) passing through the hot water heat exchanger (3), and the direct water supplied from the direct water pipe (L6) by heat exchange is heated with hot water to the hot water pipe (L7). Discharge.
  • the dashed-dotted line shows the flow of water at the time of heating operation
  • the dotted line shows the flow of water at the time of using hot water.
  • the heating flow path and the hot water flow path are divided by the three-way valve 4 as described above, and the heating operation and the hot water generation operation are operated separately.
  • the conventional boiler (1) operates the hot water operation when the hot water is used first, so if the hot water is used during heating, the heating is stopped and hot water is generated, and when the heating request is received during the hot water use, after the completion of the hot water use The heating operation is performed.
  • the heating operation can not be performed when the hot water is used, the heating is not well.
  • the heating operation may not be performed during the hot water standby time, and thus the heating may not be performed well. Due to this problem, homes and restaurants, where hot water is frequently used, often use separate heating and hot water devices in the business office.
  • the present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a heating hot water combined boiler and a control method for performing a hot water generating operation and a heating operation stably at the same time.
  • an object of the present invention is to solve the problem that the temperature of hot water is increased by performing a heating operation and a hot water generation operation at the same time, and to provide a heating hot water combined use boiler and a control method for supplying hot water of a suitable temperature.
  • the combined heating hot water boiler according to the present invention, the main heat exchanger for heating the heating water by heat exchange, and the heating water heated in the main heat exchanger is supplied, the direct water is heated by heat exchange with the heating water
  • a hot water heat exchanger for heating the water a first flow path for controlling the flow of the heating water passing through the hot water heat exchanger, for supplying the heating water passing through the hot water heat exchanger to a heating object, and the hot water heat exchanger passing through the main heat exchanger.
  • a control unit controlling to form at least one of the second flow paths for supplying one heating water.
  • the heating hot water combined boiler when simultaneous operation of heating and hot water generation is requested, in consideration of the temperature of the heating water passing through the hot water heat exchanger, the heating water passing through the hot water heat exchanger as a heating target.
  • a flow path is formed so as to be supplied to the heating device or to be returned to the main heat exchanger. Can be performed simultaneously.
  • the mixing valve can solve the problem that the temperature of the hot water is increased by simultaneously performing the heating operation and the hot water generation operation, it is possible to supply hot water of the appropriate temperature.
  • FIG. 1 is a schematic configuration diagram of a conventional heating hot water combined use boiler.
  • FIG. 2 is a view showing the configuration of a boiler for heating hot water according to a first embodiment of the present invention.
  • FIG. 3 is a diagram illustrating a heating operation state of FIG. 2.
  • FIG. 4 is a flow chart of the heating operation of FIG. 2.
  • FIG. 5 is a diagram illustrating a warm water generating operation state of FIG. 2.
  • FIG. 6 is a flow chart of the warm water generating operation of FIG.
  • FIG. 7 is a diagram illustrating a simultaneous operation state of heating and hot water generation of FIG. 2.
  • FIG. 8 is a flow chart of the simultaneous operation of heating and hot water generation of FIG.
  • FIG. 9 is a view showing the configuration of a boiler for heating hot water according to a second embodiment of the present invention.
  • FIG. 10 is a view illustrating a heating operation state of FIG. 9.
  • FIG. 11 is a flowchart of the heating operation of FIG. 9.
  • FIG. 12 is a diagram illustrating a hot water generating operation state of FIG. 9.
  • FIG. 13 is a flow chart of the warm water generating operation of FIG.
  • FIG. 14 is a view illustrating a simultaneous operation state of heating and hot water generation of FIG. 9.
  • FIG. 15 is a flow chart of the simultaneous operation of heating and hot water generation of FIG. 9.
  • FIG. 16 is a view illustrating a state in which the first pump is installed outside the boiler body in FIG. 9.
  • FIG. 17 is a view illustrating a state in which the first pump and the second pump are installed outside the boiler body in FIG. 9.
  • FIG. 18 is a view showing the configuration of a combined heating hot water according to a third embodiment of the present invention.
  • FIGS 2 to 8 show a first embodiment of the combined heating hot water boiler according to the present invention
  • Figures 9 to 15 show a second embodiment of the heating hot water boiler according to the present invention
  • Figures 16 and 17 A variant of the second embodiment of the invention is shown.
  • the combined heating hot water boiler 100 includes a main heat exchanger 200, a hot water heat exchanger 300, and a controller.
  • the main heat exchanger 200 may heat the heating water by heat exchange. Specifically, the returned heating water may be introduced into the main heat exchanger 200, and the introduced heating water may be heat-exchanged and heated by combustion heat by a burner.
  • the hot water heat exchanger 300 is supplied with the heating water heated in the main heat exchanger 200, and heats the direct water into hot water by heat exchange with the heating water. At this time, the heating water heat exchanged in the main heat exchanger 200 may be provided to supply all the hot water heat exchanger (300).
  • the control unit controls the flow of the heating water passing through the hot water heat exchanger 300 to supply the heating water passing through the hot water heat exchanger to the heating target H, and the hot water heat exchanger to the main heat exchanger 200. Control to form at least one of the second flow path for supplying the heating water passed through the group.
  • the present invention may be all of the heating water heated by heat exchange in the main heat exchanger 200 to the hot water heat exchanger (300).
  • the heating water supplied to the hot water heat exchanger 300 may pass through the hot water heat exchanger 300 after heat exchange with direct water.
  • the heating water passing through the hot water heat exchanger 300 may be supplied to the heating target H and / or the main heat exchanger 200 under the control of the controller.
  • control unit may control the flow of the heating water passing through the hot water heat exchanger 300 to form a first flow path for supplying the heating water to the heating target (H).
  • the heating operation and the hot water generating operation can be performed at the same time. That is, the heating operation can be stably performed while using hot water (see FIGS. 3 and 7).
  • the controller may control the flow of the heating water passing through the hot water heat exchanger 300 to form a second flow path for supplying the heating water to the main heat exchanger 200.
  • the heating water may be returned from the hot water heat exchanger 300 to the main heat exchanger 200, and may perform hot water generation operation (see FIG. 5).
  • the control unit forms the first flow path to simultaneously use the heating and hot water, and also enables the heating operation to be stably performed even when using the hot water, thereby solving the problem of the boiler operating in the center of the conventional hot water.
  • the present invention can appropriately correspond to the heating set temperature and hot water set temperature by controlling the flow of the heating water so that the control unit forms the first flow path and the second flow path.
  • the present invention may further include a heating and return pipe 410, a first connecting pipe 430, and a second connecting pipe 440.
  • the heating water return pipe 410 may return the heating water to the main heat exchanger 200.
  • the heating water supply pipe 420 may be connected to the heating target (H) and supply the heating water heated to the heating target (H).
  • the first heat recovery temperature sensor 410 may be provided with a first pump 411 and provided at a front end of the main heat exchanger 200 to measure the temperature of the heating water returned to the main heat exchanger 200. 412 may be further provided.
  • the heating water supply pipe 420 may be connected to the heating target H to supply the heating water, and may be connected to the downstream side of the second connection pipe 440.
  • the heat-exchanged heating water from the hot water heat exchanger 300 may be discharged to the heating water supply pipe 420 through the second connection pipe 440.
  • the first connection pipe 430 may be connected between the main heat exchanger 200 and the hot water heat exchanger 300 to supply all of the heating water exchanged in the main heat exchanger 200 to the hot water heat exchanger 300. That is, the formation of a flow path for supplying all of the heating water heat exchanged in the main heat exchanger 200 to the hot water heat exchanger 300 may be implemented by the first connection pipe 430.
  • the first connection pipe 430 may be provided with a first supply temperature sensor 431 for measuring the temperature of the heating water heat exchanged in the main heat exchanger (200).
  • an expansion tank may be disposed in the heating and return pipe 410 that is the front end of the main heat exchanger 200 or the first connection pipe 430 that is the rear end of the main heat exchanger 200.
  • the second connection pipe 440 may discharge the heating water heat exchanged in the hot water heat exchanger (300).
  • the second connection pipe 440 may be provided with a second supply temperature sensor 441 for measuring the temperature of the heating water passing through the hot water heat exchanger (300).
  • the third connection pipe 450 may connect the second connection pipe 440 and the heating water return pipe 410.
  • the third connection pipe 450 may supply the heating water introduced through the second connection pipe 440 to the heating water return pipe 410 and to the main heat exchanger 200.
  • the heating and return pipe 410 may further include a second return temperature sensor 413 provided at an upstream side of the connection point with the third connection pipe 450 to measure the temperature returned from the heating target (H). have.
  • the present invention may further include a boiler body 110 in which the main heat exchanger 200 and the hot water heat exchanger 300 are accommodated.
  • the heating and return pipe 410 is provided inside the boiler body 110 and connected to the main heat exchanger 200, the internal heat recovery pipe 4101, the outside of the boiler body 110 is provided inside the heat recovery pipe It may include at least any one of the external heating return pipe 4102 extending from the 4101 and connected to the heating target (H).
  • the heating return pipe 410 may be directly or indirectly connected to the heating target (H).
  • the heating water supply pipe 420 is provided inside the boiler body 110 and connected to the second connection pipe 440, the internal heating water supply pipe 4201, the outside of the boiler body 110 is provided inside It may include at least one of the external heating water supply pipe (4202) extending from the heating water supply pipe (4201) and connected to the heating target (H).
  • the heating water supply pipe 420 may be directly or indirectly connected to the heating target (H).
  • the second connection pipe 440 may be provided inside the boiler body 110 as shown in FIG. 2.
  • the second connection pipe 440 is provided inside the boiler body 110 as shown in the example shown in FIG. 17 and the second connection pipe 4401 and the boiler body 110 connected to the hot water heat exchanger 300. It may also include an outer second connector 4440 provided outside the () and extending from the inner second connector (4401).
  • the third connection pipe 450 may be provided inside or outside the boiler body 110 according to the positions of the second connection pipe 440 and the heating and return pipe 410.
  • the controller may allow the heating water passing through the hot water heat exchanger 300 to flow into the second connection pipe 440 and the heating water supply pipe 420 to form a first flow path.
  • the control unit may allow the heating water passing through the hot water heat exchanger 300 to flow downstream to the second connection pipe 440, the third connection pipe 450, and the heating water return pipe 410 to form a second flow path. .
  • the first flow path may be implemented in various forms if it is possible to supply the heating water passing through the hot water heat exchanger 300 to the heating target (H).
  • the first flow path is the second connection pipe 440 and the heating water supply pipe. 420 and the water supply pipe provided in the heating target (H) can be implemented.
  • the present invention can perform simultaneous operation of heating and hot water generation.
  • the controller may form at least one of the first flow path and the second flow path according to the temperature of the heating water discharged to the second connection pipe 440 during the simultaneous operation of heating and hot water generation. .
  • control unit during the simultaneous operation of the heating and hot water generation, the amount of heat of the burner to transfer the combustion heat to the main heat exchanger 200 so that the temperature of the heating water discharged to the second connecting pipe 440 reaches a preset heating temperature. Can be controlled.
  • the controller may control the amount of heat of the burner such that the temperature of the second connection pipe 440 reaches a preset heating temperature during the simultaneous operation of heating and hot water generation. That is, the temperature of the first supply temperature sensor 431 may be set in consideration of the temperature of the second supply temperature sensor 441 and the heat exchange in the hot water heat exchanger 300. When the temperature of the second supply temperature sensor 441 is out of the preset heating temperature according to the use of heating and hot water, the controller controls the amount of heating water supplied to the first flow path or forms the second flow path to heat the heating. The temperature can be kept stable.
  • the present invention may include a water pipe 510 and a hot water pipe 520.
  • the present invention may further include a mixing tube 530 and a mixing valve 531.
  • the direct water pipe 510 may be supplied with the direct water heat exchanged in the hot water heat exchanger 300, and the hot water pipe 520 may discharge the first hot water that has undergone heat exchange from the hot water heat exchanger 300.
  • the present invention may further include a mixing tube 530 and a mixing valve 531 to solve this problem.
  • the mixing pipe 530 is connected between the water pipe 510 and the hot water pipe 520, and the mixing valve 531 may be installed on the mixing pipe 530 to adjust the amount of water mixed.
  • the straight pipe 510 may be provided with a direct temperature sensor 513 for measuring the temperature of the incoming direct flow, and a flow rate sensor 511 for measuring the flow rate of the incoming direct flow.
  • the hot water pipe 520 may be provided with a first hot water temperature sensor 521 and a second hot water temperature sensor 522.
  • the first hot water temperature sensor 521 is provided on the upstream side of the hot water pipe 520 and the connection point with the mixing pipe 530 to adjust the temperature of the first hot water, which is hot water immediately after the heat exchange in the hot water heat exchanger 300. It can be measured.
  • the second hot water temperature sensor 522 may measure the temperature of the second hot water, which is hot water that is provided on the hot water pipe 520 on the downstream side from the connection point with the mixing pipe 530.
  • the controller may adjust the mixing valve 531 such that the temperature of the second hot water discharged to the outside through the hot water pipe 520 reaches a preset hot water temperature. Specifically, the controller may adjust the mixing valve 531 in consideration of the temperature detected by the first hot water temperature sensor 521 so that the temperature sensed by the second hot water temperature sensor 522 reaches a preset hot water temperature. .
  • the control unit causes the direct water to be properly supplied to the first hot water by the mixing valve 531 so that the temperature of the second hot water reaches the preset hot water temperature.
  • the controller can control the opening degree of the mixing valve 531 by comparing the temperature of the direct water temperature sensor 513 installed in the water pipe, the temperature of the first hot water temperature sensor 521, and the hot water temperature set by the user. have.
  • the mixing valve 531 by providing the mixing valve 531, it is possible to solve the problem that the temperature of the hot water increases as the heating operation and the hot water generation operation at the same time, it is possible to supply hot water of the appropriate temperature.
  • the first embodiment of the present invention may include a heating valve 421 and a hot water valve 451.
  • the heating valve 421 may be installed on the heating water supply pipe 420 to open and close the heating water supply pipe 420.
  • the hot water valve 451 may be installed on the third connection pipe 450 to open and close the third connection pipe 450.
  • the heating valve 421 and the hot water valve 451 may be a valve capable of adjusting the opening degree, or may be an on / off type on / off valve.
  • FIG 3 is a view showing a heating operation state using the first embodiment
  • Figure 4 is a flow chart of the heating operation.
  • the controller may control the hot water valve 451 to be closed and the heating valve 421 to be opened to form the first flow path during the heating operation.
  • the hot water valve 451 may be closed and the heating valve 421 may be opened by the controller.
  • the heating water passing through the hot water heat exchanger 300 flows to the second connection pipe 440 and the heating water supply pipe 420 to be supplied to the heating target (H).
  • the first pump 411 installed in the heating water return pipe 410 is operated, the heating water is supplied from the heating target H to the main heat exchanger 200, and the heating water heated in the main heat exchanger 200 is supplied to the hot water heat exchanger 300.
  • a circulation passage including a heating target (H) can be formed.
  • FIG. 5 is a view showing a hot water generating operation state using the first embodiment
  • Figure 6 is a flow chart of the hot water generating operation.
  • the controller may control the heating valve 421 to be closed and open the hot water valve 451 to form a second flow path during the hot water generation operation.
  • the heating valve 421 may be closed and the hot water valve 451 may be opened by the controller.
  • the heating water passing through the hot water heat exchanger 300 may flow to the downstream side of the second connection pipe 440, the third connection pipe 450, and the heating water recovery pipe 410 to be supplied to the main heat exchanger 200.
  • a circulation passage in which the heating water circulates between the hot water heat exchanger 300 and the main heat exchanger 200 may be formed.
  • FIG. 7 is a view showing a simultaneous operation state of heating and hot water generation using the first embodiment
  • FIG. 8 is a flowchart of a simultaneous operation of heating and hot water generation.
  • the controller may form at least one of the first flow path and the second flow path according to the temperature of the heating water discharged to the second connection pipe 440. have.
  • the controller may control the amount of heat of the burner transferring the combustion heat to the main heat exchanger 200 so that the temperature of the heating water discharged to the second connection pipe 440 reaches a preset heating temperature.
  • the controller controls the hot water valve 451 to be closed and the heating valve 421 to open to form the first flow path, and then the second connection pipe 440.
  • the hot water valve 451 and the heating valve 421 may be controlled to form a second flow path in consideration of the temperature of the heating water discharged to the side.
  • the first flow path may be formed while the hot water valve 451 is closed by the controller and the heating valve 421 is opened.
  • the heating water supplied to the heating target H through the heating water return pipe 410 flows to the main heat exchanger 200, and the hot water heat exchanger through the first connection pipe 430.
  • the heating water flows to 300, and the heating water flows to the heating target H through the second connection pipe 440 and the heating water supply pipe 420.
  • the temperature of the second connection pipe 440 may be controlled in consideration of the heating water. After that, when the temperature of the second connection pipe 440 is out of the preset heating temperature according to the use load of heating and hot water, the heating water flowing through the first flow path in consideration of the temperature of the heating water of the second connection pipe 440. To adjust the amount of or to form a second flow path. Accordingly, the hot water generating operation and the heating operation can be performed stably at the same time.
  • the flow rate of the heating water passing through the hot water heat exchanger 300 may be reduced by reducing the opening degree of the heating valve 421.
  • the controller may adjust the opening degree of the heating valve 421 to adjust the temperature of the second supply temperature sensor 441 to a preset heating temperature. That is, the controller may increase the temperature of the heating water passing through the hot water heat exchanger 300 by reducing the opening degree of the heating valve 421 to reduce the flow rate of the heating water passing through the hot water heat exchanger 300. After that, when the temperature of the second supply temperature sensor 441 becomes the preset heating temperature, the controller may increase the opening degree of the heating valve 421 to return to the original state.
  • the control unit The hot water valve 451 may be opened and the heating valve 421 may be closed to form two flow paths. At this time, the boiler stops the heating operation and performs only the hot water generating operation. Thereafter, when the temperature of the second supply temperature sensor 441 reaches a preset heating temperature, the controller may perform simultaneous heating and hot water generation.
  • the hot water use load is increased to maximize the burner heat quantity and the heating valve ( Although the opening degree of 421 is adjusted, when the temperature of the second supply temperature sensor 441 is less than 55 degrees (the preset heating temperature v, see FIG. 8), the heating operation is stopped and only hot water generation operation is performed. In such a situation, when the load of using hot water decreases again and the temperature of the second supply temperature sensor 441 is maintained at 55 degrees or more, heating is performed.
  • v in FIG. 8 is an error range.
  • the controller may control the hot water valve 451 to be opened and the heating valve 421 to be closed to form the second flow path. This is to prevent the heating operation from being performed at a temperature higher than the preset heating temperature.
  • the temperature of the second supply temperature sensor 441 may be higher than the preset heating temperature.
  • the controller may control the hot water valve 451 to be opened and the heating valve 421 to be closed so as to adjust the temperature of the second supply temperature sensor 441 to a preset heating temperature to perform only a hot water generating operation.
  • the controller opens the heating valve 421 and closes the hot water valve 451 to resume heating. Can be controlled to perform.
  • the preset heating temperature requested by the user is 50 degrees
  • the temperature of the second supply temperature sensor 441 is controlled by 50 degrees
  • the load of using hot water is reduced so that the temperature of the second supply temperature sensor 441 is 55 degrees. If it exceeds the figure (the preset heating temperature + v, see FIG. 8), the heating operation is stopped and only hot water generating operation is performed. In this state, when the hot water load is increased again and the temperature of the second supply temperature sensor 441 is maintained at 55 degrees or less, the heating operation is performed.
  • the temperature range of the second hot water temperature sensor 522 is an error range of the preset hot water temperature (the preset hot water temperature -z, see FIG. 8).
  • the second hot water temperature sensor 522 adjusts the target temperature by controlling the burner heat amount so as to meet the error range of the preset hot water temperature.
  • z in FIG. 8 is an error range.
  • the error range is not a fixed value, but can be adjusted by the user by changing the setting.
  • the control method of the combined heating hot water boiler 100 according to the first embodiment of the present invention includes a flow path forming step, a heating temperature adjusting step and a hot water temperature adjusting step.
  • At least one of a first flow path for supplying the second flow path for supplying the heating water passing through the hot water heat exchanger 300 to the main heat exchanger 200 is formed.
  • the amount of heat of the burner is controlled so that the heating water passing through the hot water heat exchanger 300 reaches a preset heating temperature.
  • the hot water temperature adjusting step adjusts the temperature of the hot water generated by heat exchange in the hot water heat exchanger 300 to reach a preset hot water temperature.
  • the heating water heated in the main heat exchanger 200 is supplied to the hot water heat exchanger 300, the heating water passing through the hot water heat exchanger 300 is supplied to the heating device or returned to the main heat exchanger 200.
  • the hot water generating operation and the heating operation can be performed stably at the same time.
  • the heating hot water combined use boiler 100 according to the second embodiment uses the first pump 411 and the second pump 423 instead of the hot water valve 451 and the heating valve 421 of the first embodiment.
  • the heating hot water combined use boiler 100 according to the second embodiment uses the first pump 411 and the second pump 423 instead of the hot water valve 451 and the heating valve 421 of the first embodiment.
  • the rest of the configuration is the same as in the first embodiment described above.
  • a detailed description of the same configuration will be omitted and will be described based on the difference.
  • a second embodiment of the present invention may include a first pump 411 and a second pump 423.
  • the first pump 411 may be installed on the heating return pipe 410 to return the heating water to the main heat exchanger 200.
  • the second pump 423 may be installed on the heating water supply pipe 420 to supply the heating water on the second connection pipe 440 to the heating target H.
  • the type of the first pump 411 and the second pump 423 is not limited. For example, a speed adjustable pump may be applied, or an on / off type may be applied.
  • the heating water supply pipe 420 may be provided with a third supply temperature sensor 425 for measuring the temperature of the heating water supplied to the heating target (H).
  • Figure 11 is a flow chart of the heating operation.
  • the control unit may control to operate the first pump 411 and the second pump 423 to form the first flow path during the heating operation.
  • the first pump 411 and the second pump 423 may be operated by the controller.
  • the heating water passing through the hot water heat exchanger 300 flows to the second connection pipe 440 and the heating water supply pipe 420 to be supplied to the heating target (H).
  • the heating water is supplied from the heating target H to the main heat exchanger 200, and the heating water heated in the main heat exchanger 200 is supplied to the hot water heat exchanger 300.
  • a circulation passage including a heating target (H) can be formed.
  • the heating water of the second connection pipe 440 may be supplied to the heating water return pipe 410 through the third connection pipe 450.
  • the controller may control the amount of heat of the burner connected to the main heat exchanger 200 such that the temperature of the heating water supplied to the heating water supply pipe 420 reaches a preset heating temperature.
  • the result of controlling the heat amount of the burner of the main heat exchanger 200 is measured by the first supply temperature sensor 431 installed in the first connection pipe 430, the temperature of the heating water supplied to the heating water supply pipe 420. May be measured by the third supply temperature sensor 425.
  • the temperature of the second supply temperature sensor 441 may be lower than the temperature of the third supply temperature sensor 425. Therefore, it is preferable that the controller controls the amount of heat of the burner so that the temperature of the third supply temperature sensor 425 becomes a preset heating temperature.
  • Figure 13 is a flow chart of the hot water generating operation.
  • the controller may control the first pump 411 to be operated and to control the second pump 423 to be stopped to form a second flow path during the hot water generation operation.
  • the controller may operate the first pump 411 and stop the second pump 423.
  • the heating water passing through the hot water heat exchanger 300 may flow to the downstream side of the second connection pipe 440, the third connection pipe 450, and the heating water recovery pipe 410 to be supplied to the main heat exchanger 200.
  • a circulation passage through which the heating water circulates between the hot water heat exchanger 300 and the main heat exchanger 200 may be formed while the heating water heated in the main heat exchanger 200 is supplied to the hot water heat exchanger 300.
  • FIG. 15 is a diagram illustrating a simultaneous operation state of heating and hot water generation using two embodiments, and FIG. 15 is a flowchart of simultaneous operation of heating and hot water generation.
  • the controller may form at least one of the first flow path and the second flow path according to the temperature of the heating water discharged to the second connection pipe 440. have.
  • the controller may control the amount of heat of the burner transferring the combustion heat to the main heat exchanger 200 so that the temperature of the heating water discharged to the second connection pipe 440 reaches a preset heating temperature.
  • the controller controls the first pump 411 and the second pump 423 to operate to form the first flow path during simultaneous operation of heating and hot water generation. Then, in consideration of the temperature of the heating water discharged to the heating water supply pipe 420, it is possible to control the operation of the first pump 411 and the second pump 423 to form a second flow path.
  • the first flow path may be formed while the first pump 411 and the second pump 423 are operated by the controller.
  • the heating water supplied to the heating target H through the heating water return pipe 410 flows to the main heat exchanger 200, and the hot water heat exchanger through the first connection pipe 430.
  • the heating water flows to 300, and the heating water flows to the heating target H through the second connection pipe 440 and the heating water supply pipe 420.
  • the temperature of the second connection pipe 440 may be controlled in consideration of the heating water. After that, when the temperature of the second connection pipe 440 is out of the preset heating temperature according to the use load of heating and hot water, the heating water flowing through the first flow path in consideration of the temperature of the heating water of the second connection pipe 440. To adjust the amount of or to form a second flow path. Accordingly, the hot water generating operation and the heating operation can be performed stably at the same time.
  • the control unit may The flow rate of the heating water passing through the hot water heat exchanger 300 may be reduced by reducing the speed of the first pump 411.
  • the control unit can be controlled to operate and the second pump 4 can be controlled to stop to form two flow paths.
  • the boiler stops the heating operation and performs only the hot water generating operation.
  • the controller may perform simultaneous heating and hot water generation.
  • the controller may operate the first pump 411 to form the second flow path. Control and control of the second pump 421 to be stopped.
  • FIG. 16 and 17 show a modified embodiment of the second embodiment of the present invention.
  • the modified embodiment of the second embodiment is modified in that some parts are provided outside the boiler body 110.
  • the combined heating hot water boiler 100 according to the present invention as shown in the embodiment shown in Figure 9 may be installed to accommodate all the configuration in the interior of the boiler body 110, shown in Figures 16 and 17 As shown in the embodiment, some components may be installed outside the boiler body 110.
  • the second pump 421 may be connected to an external heating water supply pipe 4202.
  • the third connecting pipe 4500 connects the external second connecting pipe 4402 and the external heating water return pipe 4102 to the outside of the boiler body 110. It may be provided.
  • a member connecting the third connecting pipe 4500 and the external second connecting pipe 4402 and a member connecting the third connecting pipe 4500 and the external heating water return pipe 4102 also include the boiler body 110. It can be installed externally.
  • heating water supply pipe 4202 may be connected to the external second connection pipe 4402. In this case, the entire heating water supply pipe 4202 is provided outside, and the second pump 423 and the third supply temperature sensor 425 provided in the heating water supply pipe 4202 are also installed outside the boiler body 110. Can be. In addition, the first pump 411 may also be installed in the external heating water return pipe 4102.
  • the third connecting pipe 4500 and the first pump 411 or the second pump 423 are installed outside the boiler body 110, thereby providing the first pump 411 or the like. Manipulation of the second pump 423 can be facilitated. In addition, since some components, such as the first pump 411 and the second pump 423, and their connection portions are installed outside the boiler body 110, the installation of the components can be facilitated. And since the internal configuration of the boiler body 110 is simplified and the space requirements are reduced, there is an advantage that the boiler size can be reduced.
  • control method of a heating hot water boiler according to a second embodiment of the present invention will be described.
  • the control method of the combined heating hot water boiler according to another aspect of the present invention described below is a control method using the heating hot water boiler according to the second embodiment of the present invention, and the following description will be duplicated from the above description. Is omitted.
  • the control method of the combined heating hot water boiler 100 according to the second embodiment of the present invention includes a flow path forming step, a heating temperature adjusting step and a hot water temperature adjusting step.
  • At least one of a first flow path for supplying the second flow path for supplying the heating water passing through the hot water heat exchanger 300 to the main heat exchanger 200 is formed.
  • the amount of heat of the burner is controlled so that the heating water passing through the hot water heat exchanger 300 reaches a preset heating temperature.
  • the hot water temperature adjusting step adjusts the temperature of the hot water generated by heat exchange in the hot water heat exchanger 300 to reach a preset hot water temperature.
  • the heating water is supplied to the heating device or returned to the main heat exchanger 200, so that the hot water generating operation and the heating operation are stably performed. Can be performed simultaneously.
  • the heating hot water combined use boiler 100 according to the third embodiment has a difference in that the three-way valve 460 controls the flow of the heating water instead of the hot water valve 451 and the heating valve 421 of the first embodiment.
  • the rest of the configuration is the same as in the first embodiment described above.
  • a detailed description of the same configuration will be omitted and will be described based on the difference.
  • the third embodiment of the present invention may further include a three-way valve 460.
  • the three-way valve 460 may be installed at a connection point between the second connection pipe 440, the heating water supply pipe 420, and the third connection pipe 450.
  • the three-way valve 460 may selectively connect the second connection pipe 440 to any one of the heating water supply pipe 420 and the third connection pipe 450. Accordingly, the heating water passing through the hot water heat exchanger 300 may be supplied to any one of the heating water supply pipe 420 and the third connection pipe 450.
  • the controller may control the three-way valve 460 according to a heating operation, a hot water operation, or a simultaneous operation of heating and hot water generation.
  • the three-way valve 460 may be an on / off type on / off valve or a proportional valve capable of position control.
  • a flow path is formed so as to be supplied to the heating device or to be returned to the main heat exchanger. Can be performed simultaneously.
  • the mixing valve can solve the problem that the temperature of the hot water is increased by simultaneously performing the heating operation and the hot water generation operation, it is possible to supply hot water of the appropriate temperature.

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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)
  • Fluid Mechanics (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)

Abstract

La présente invention concerne une chaudière combinée pour eau chaude et chauffage. La chaudière combinée pour eau chaude et chauffage comprend : un échangeur de chaleur principal qui chauffe l'eau de chauffage par échange de chaleur ; un échangeur de chaleur à eau chaude auquel l'eau de chauffage chauffée par l'échangeur de chaleur principal est fournie et qui chauffe l'eau de robinet pour obtenir de l'eau chaude par échange de chaleur avec l'eau de chauffage ; et une unité de commande qui commande l'écoulement de l'eau de chauffage ayant traversé l'échangeur de chaleur à eau chaude pour commander la formation d'un premier trajet d'écoulement pour fournir, à un objet à chauffer, l'eau de chauffage ayant traversé l'échangeur de chaleur à eau chaude et/ou d'un second trajet d'écoulement pour fournir, à l'échangeur de chaleur principal, l'eau de chauffage ayant traversé l'échangeur de chaleur à eau chaude.
PCT/KR2019/005480 2018-05-08 2019-05-08 Chaudière combinée pour eau chaude et chauffage et son procédé de commande WO2019216635A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US17/054,076 US11473787B2 (en) 2018-05-08 2019-05-08 Boiler for heating and hot-water control method therefor
CN201980031268.2A CN112189118A (zh) 2018-05-08 2019-05-08 供暖和热水兼用锅炉及其控制方法

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2018-0052261 2018-05-08
KR20180052261 2018-05-08
KR10-2019-0053234 2019-05-07
KR1020190053234A KR102449159B1 (ko) 2018-05-08 2019-05-07 난방 온수 겸용 보일러 및 그 제어방법

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Cited By (1)

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CN111947320A (zh) * 2020-08-13 2020-11-17 珠海格力电器股份有限公司 燃气热水器的控制方法、装置、燃气热水器及存储介质

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KR960024096A (ko) * 1994-12-05 1996-07-20 김진곤 가스보일러 시스템
KR20100036569A (ko) * 2008-09-30 2010-04-08 린나이코리아 주식회사 1관 3수로 가스 보일러
KR101379766B1 (ko) * 2012-05-03 2014-04-01 주식회사 경동나비엔 난방효율을 향상시킨 난방 및 온수의 동시 사용이 가능한 보일러
KR20140060773A (ko) * 2012-11-12 2014-05-21 주식회사 경동나비엔 난방 온수 겸용 보일러
KR20170075235A (ko) * 2015-12-23 2017-07-03 주식회사 경동나비엔 난방 온수 겸용 보일러 및 그 제어방법

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Publication number Priority date Publication date Assignee Title
KR960024096A (ko) * 1994-12-05 1996-07-20 김진곤 가스보일러 시스템
KR20100036569A (ko) * 2008-09-30 2010-04-08 린나이코리아 주식회사 1관 3수로 가스 보일러
KR101379766B1 (ko) * 2012-05-03 2014-04-01 주식회사 경동나비엔 난방효율을 향상시킨 난방 및 온수의 동시 사용이 가능한 보일러
KR20140060773A (ko) * 2012-11-12 2014-05-21 주식회사 경동나비엔 난방 온수 겸용 보일러
KR20170075235A (ko) * 2015-12-23 2017-07-03 주식회사 경동나비엔 난방 온수 겸용 보일러 및 그 제어방법

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111947320A (zh) * 2020-08-13 2020-11-17 珠海格力电器股份有限公司 燃气热水器的控制方法、装置、燃气热水器及存储介质

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