US20170363301A1 - Hot water supply apparatus provided with pressure reducing valve - Google Patents

Hot water supply apparatus provided with pressure reducing valve Download PDF

Info

Publication number
US20170363301A1
US20170363301A1 US15/537,807 US201515537807A US2017363301A1 US 20170363301 A1 US20170363301 A1 US 20170363301A1 US 201515537807 A US201515537807 A US 201515537807A US 2017363301 A1 US2017363301 A1 US 2017363301A1
Authority
US
United States
Prior art keywords
hot water
flow rate
direct water
direct
water
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.)
Abandoned
Application number
US15/537,807
Other languages
English (en)
Inventor
Seung kil Son
Si Hwan Kim
Yong Min Song
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
Assigned to KYUNGDONG NAVIEN CO., LTD. reassignment KYUNGDONG NAVIEN CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SON, SEUNG KIL, KIM, SI HWAN, SONG, YONG MIN
Publication of US20170363301A1 publication Critical patent/US20170363301A1/en
Abandoned legal-status Critical Current

Links

Images

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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/34—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water chamber arranged adjacent to the combustion chamber or chambers, e.g. above or at side
    • 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
    • F24H1/124—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 using fluid fuel
    • 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
    • F24D17/0078—Recirculation systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/20—Excess-flow valves
    • F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
    • F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
    • F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
    • F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
    • 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
    • F24D17/0005—Domestic hot-water supply systems using recuperation of waste heat
    • 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
    • F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot 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
    • F24H9/00—Details
    • F24H9/14—Arrangements for connecting different sections, e.g. in 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
    • 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
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/04—Sensors
    • F24D2220/042—Temperature sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/04—Sensors
    • F24D2220/044—Flow sensors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/18—Domestic hot-water supply systems using recuperated or waste heat

Definitions

  • the present invention relates to a hot water supply apparatus provided with a pressure reducing valve, and more particular, to a hot water supply apparatus provided with a pressure reducing valve capable of minimizing a temperature deviation of hot water while using hot water.
  • a hot water supply apparatus is an apparatus for heating direct water to a predetermined temperature within a short time of period so that a user can conveniently use hot water.
  • FIG. 1 is a schematic view illustrating a configuration of a conventional hot water supply apparatus.
  • a flow rate sensor 1 is provided for measuring a flow rate of direct water introduced through a direct water inlet pipe 5 , the direct water introduced to a heat exchanger 8 is heated by heat exchanging with combustion heat generated by a burner 7 from combustion of air provided from a blower 6 and gas, and is discharged through a hot water supply pipe 9 , and a flow adjustment valve 4 is provided on the hot water supply pipe 9 for adjusting a flow rate of hot water.
  • a bypass pipe 2 is connected between the direct water inlet pipe 5 and the hot water supply pipe 9 such that the introduced direct water is directly transferred to the hot water supply pipe 9 side without passing through the heat exchanger 8 , and therefore a temperature of hot water may be adjusted by mixing hot water heated by passing through the heat exchanger 8 with the direct water.
  • a mixing valve 3 is provided on the bypass pipe 2 so that a flow rate of direct water transferred through the bypass pipe 2 is adjusted.
  • the mixing valve 3 is provided on the bypass pipe 2 .
  • a controller (not shown) controls the degree of opening of the mixing valve 3 to adjust the flow rate of the direct water which is mixed in the hot water supply pipe 9 through the bypass pipe 2 , thereby hot water having a temperature set by the user is provided.
  • the mixing valve 3 needs a constitution for adjusting the degree of opening, there are problems in that a structure of the valve is complex and the cost of the valve is high, costs of a system configuration for controlling the mixing valve 3 increase, and time is consumed until the degree of opening of the mixing valve 3 is adjusted after the flow rate sensor 1 detects the flow rate.
  • the present invention is directed to providing a hot water supply apparatus provided with a pressure reducing valve capable of minimizing temperature deviations of hot water provided to a user even when a hot water usage flow rate is changed.
  • One aspect of the present invention provides a hot water supply apparatus which includes a direct water inlet pipe into which direct water is introduced; a heat exchanger for heating the direct water introduced through the direct water inlet pipe with combustion heat of a burner; a hot water supply pipe for discharging the hot water heated in the heat exchanger; a bypass pipe connected between the direct water inlet pipe and the hot water supply pipe so as to mix a part of the direct water introduced through the direct water inlet pipe with the hot water discharged through the hot water supply pipe; and a pressure reducing valve provided on the bypass pipe and configured to reduce a pressure of water passing through the inside of the bypass pipe to supply the water to the hot water supply pipe when hot water is supplied.
  • the pressure reducing valve may increase a flow rate of the water passing through the inside of the direct water inlet pipe up to a set flow rate, and then maintains at a constant flow rate.
  • the pressure reducing valve may include a direct water flow path, through which the water passes, formed therein and an elastic member which is deformed into a predetermined shape by supply pressure of the direct water provided to the direct water flow path so that the elastic member restricts a flow rate of the water passing through the direct water flow path and also maintains at a constant flow rate.
  • a hot water supply apparatus provided with a pressure reducing valve according to the present invention can respond to a change in a hot water usage flow rate of a user with a simple configuration of providing a pressure reducing valve on a bypass pipe without providing any separate controller, and minimize temperature deviations of hot water because a mixing rate is rapidly changed to accelerate responsibility to changes of the hot water usage flow rate.
  • FIG. 1 is a schematic view illustrating a configuration of a conventional hot water supply apparatus.
  • FIG. 2 is a schematic view illustrating a configuration of a hot water supply apparatus according to a first embodiment of the present invention.
  • FIG. 3 is a cross-sectional view illustrating an internal structure of a pressure reducing valve according to one embodiment of the present invention.
  • FIG. 4 is a cross-sectional view illustrating a state in which an elastic member is deformed according to a change in supply pressure of direct water at the pressure reducing valve of FIG. 3 .
  • FIG. 5 is a graph illustrating a flow rate change according to supply pressure of direct water at the hot water supply apparatus of the present invention.
  • FIG. 6 is a graph illustrating a temperature change of hot water according to a flow rate change in the hot water supply apparatus of the present invention.
  • FIG. 7 is a schematic view illustrating a configuration of a hot water supply apparatus according to a second embodiment of the present invention.
  • Hot water supply apparatus 111 211: Direct water inlet pipe 112, 212: Hot water supply pipe 113, 213: Bypass pipe 121, 221: Direct water temperature 122, 222: Flow rate sensor sensor 123, 223: Heat exchanger temperature sensor 124, 224: Hot water temperature sensor 130, 230: Pressure reducing valve 131: Valve body 132 : Cylindrical member 132a: Guide rib 132b: Guide groove 132c, 132d: Protrusion piece 133: Center column member 134: Elastic member 135: Direct water passing hole 140, 240, 241: Heat exchanger 150, 250: Burner 160, 260: Blower 214: Heating supply pipe 215: Heating recycle water pipe 216: Heating water supply pipe for 270: Circulation pump supplying hot water 271: Heating water supply 272: Three-way valve temperature sensor
  • FIG. 2 is a schematic view illustrating a configuration of a hot water supply apparatus according to a first embodiment of the present invention.
  • the hot water supply apparatus 100 is provided with a pressure reducing valve 130 in a water heater, and is configured to include direct water inlet pipes 111 a and 111 b into which direct water is introduced, a heat exchanger 140 for heating the direct water introduced through the direct water inlet pipes 111 a and 111 b with combustion heat of a burner 150 , hot water supply pipes 112 a and 112 b for discharging the hot water heated in the heat exchanger 140 , a bypass pipe 113 connected between the direct water inlet pipes 111 a and 111 b and the hot water supply pipes 112 a and 112 b so as to mix a part of the direct water introduced through the direct water inlet pipe 111 a with the hot water discharged through the hot water supply pipe 112 b ; and a pressure reducing valve 130 , provided on the bypass pipe 113 , for reducing the pressure of water passing through the inside of the bypass pipe 113 to supply the water to the hot water supply pipe 112 b when hot
  • a direct water temperature sensor 121 for measuring a temperature of direct water and a flow rate sensor 122 for measuring flow rate of direct water are provided on the direct water inlet pipe 111 a.
  • the bypass pipe 113 is connected to supply a part of the direct water introduced through the direct water inlet pipe 111 a to the hot water supply pipe 112 b in order to control a temperature of the hot water provided through the hot water supply pipe 112 b.
  • the pressure reducing valve 130 for controlling a flow rate of the direct water provided through the bypass pipe 113 is configured to reduce the pressure of the direct water provided from the direct water inlet pipe 111 a so that a constant flow rate of the direct water is provided to the hot water supply pipe 112 b.
  • the flow rate of direct water which passes through the inside of the pressure reducing valve 130 increases up to a certain extent as the hot water usage flow rate increases.
  • the flow rate of direct water which passes through the inside of the pressure reducing valve 130 is maintained constantly even when the hot water usage flow rate increases.
  • the flow rate of direct water which passes through the pressure reducing valve 130 is maintained at the constant flow rate after being increased by a predetermined flow rate, the remaining amount of the direct water except an amount of the direct water which passes through the pressure reducing valve 130 is provided to the heat exchanger 140 . Therefore, when the hot water usage flow rate is changed, the flow rate provided to the heat exchanger 140 is changed together with the change in the hot water usage flow rate accordingly, a mixing rate, which is a ratio of the hot water heated in the heat exchanger 140 and provided to the hot water supply pipe 112 a and the flow rate of the direct water which passes through the pressure reducing valve 130 , is changed together with the change in the hot water usage flow rate, thereby temperature deviations of hot water are minimized.
  • the pressure reducing valve 130 has a very simple structure and automatically changes the mixing rate according to the supply pressure of the direct water, thereby an overall system configuration is very simply implemented.
  • Non-described reference numerals 150 and 160 indicate a burner and a blower, respectively.
  • FIG. 3 is a cross-sectional view illustrating an internal structure of a pressure reducing valve according to one embodiment of the present invention
  • FIG. 4 is a cross-sectional view illustrating a state in which an elastic member is deformed according to a change of supply pressure of direct water in the pressure reducing valve of FIG. 3 .
  • FIGS. 3 and 4 a configuration and an effect of the pressure reducing valve according to one embodiment of the present invention will be described.
  • the pressure reducing valve 130 is configured to include a valve body 131 formed as a whole by injection molding, and an elastic member 134 which is inserted into the inside of the valve body 131 and restricts a flow path of direct water by being deformed by the supply pressure of the direct water.
  • the valve body 131 is configured to include a cylindrical member 132 in which the flow path of direct water is formed therein, and a center column member 133 provided at a center portion of an inner side of the cylindrical member 132 .
  • the elastic member 134 is inserted between an inner surface of the cylindrical member 132 and an outer surface of the center column member 133 , and when the direct water is introduced, the elastic member 134 is compressed to expand in a lateral direction as in FIG. 4 , thereby a cross-sectional area of the flow path through which the direct water passes is changed.
  • guide ribs 132 a which protrude at regular intervals in a circumferential direction are formed on the inner surface of the cylindrical member 132 , and guide grooves 132 b are formed between neighboring guide ribs 132 a.
  • a protrusion piece 132 c protruding in a certain length toward the center axis of the center column member 133 is formed at an upper part of the guide rib 132 a
  • a protrusion piece 132 d protruding in a certain length toward the center column member 133 is also formed at an upper part of the guide groove 132 b .
  • a direct water passing hole 135 which is a flow path through which the direct water passes is formed so that the protrusion piece 132 c protruding from the guide rib 132 a and the protrusion piece 132 d protruding from the neighboring guide groove 132 b have steps formed to cross therebetween in a vertical direction.
  • a cross section of the elastic member 134 maintains a nearly circular shape as shown in FIG. 3 , and therefore the flow path in which the direct water flows is widely formed in a space between the elastic member 134 and the outer surface of the center column member 133 and a space between the elastic member 134 and the inner surface of the cylindrical member 132 so that the introduced direct water passes through the flow path intactly.
  • the elastic member 134 is deformed to a flat elliptical shape by the supply pressure of the direct water as shown in FIG. 4 . Because the flow path through which the direct water flows is restricted to the space between the elastic member 134 and the outer surface of the center column member 133 so that the flow path is narrowly formed, the passing flow rate of the introduced direct water is restricted to a certain amount or less.
  • the elastic member 134 is deformed only within a certain extent, and the shape of the cross section thereof is not changed even when the supply pressure of the direct water further increases. Therefore, the passing flow rate of the direct water is constantly maintained.
  • FIG. 5 is a graph illustrating a flow rate change according to the supply pressure of direct water in the hot water supply apparatus of the present invention
  • FIG. 6 is a graph illustrating a temperature change of hot water according to a flow rate change in the hot water supply apparatus of the present invention
  • Table 1 is a table showing a flow rate which passes through each pipe and a mixing rate
  • Table 2 is a table showing relations between a flow rate, temperature, and mixing rate.
  • the mixing flow rate refers to a flow rate of direct water which is provided to the hot water supply pipes 112 a and 112 b after passing through the bypass pipe 113 , of the direct water introduced through the direct water inlet pipe 111 a , and mixes with hot water flowing in the hot water supply pipe 112 a
  • the flow rate of heat exchanger refers to a flow rate of hot water heated in the heat exchanger 140 and then provided to the hot water supply pipe 112 a
  • the overall flow rate refers to a flow rate which is the sum of the mixing flow and the flow rate of heat exchanger and is equal to the flow rate of direct water introduced through the direct water inlet pipe 111 a
  • the mixing rate refers to a ratio of the mixing flow rate to the overall flow rate.
  • the temperature of the heat exchanger refers to a temperature of hot water measured at the heat exchanger temperature sensor 123
  • the temperature of hot water refers to a temperature of hot water measured at the hot water temperature sensor 124
  • the temperature of direct water refers to a temperature of direct water measured at the direct water temperature sensor 121 .
  • the mixing flow rate increases with the increase of the overall flow in the section where the overall flow rate changes from 3 to 4, however, in the section where the overall flow rate changes from 4 to 14, because the elastic member 134 of the pressure reducing valve 130 does not change any more after being compressed as in FIG. 4 , the mixing flow rate is constantly maintained even when the overall flow rate increases.
  • the temperature of the heat exchanger decreases from 61.5° C. to 48° C. as the flow rate of direct water provided to the heat exchanger 140 increases.
  • the temperature of hot water provided to the user through the hot water supply pipe 112 b is constantly maintained at 45° C. because the mixing rate decreases from 0.4 to 0.11.
  • the mixing rate is changed because the flow rate of the pressure reducing valve 130 is inherently restricted in a certain manner even when the hot water usage flow rate of the user is changed, and therefore the temperature of hot water provided to the user is uniformly maintained.
  • a configuration of an apparatus becomes simple, and the flow rate of the pressure reducing valve 130 is restricted at the same time as the hot water usage flow rate of the user is changed, thereby immediate responsiveness minimizes the temperature deviations of hot water.
  • FIG. 7 is a schematic view illustrating a configuration of a hot water supply apparatus according to a second embodiment of the present invention.
  • a hot water supply apparatus 200 of the second embodiment illustrates a case in which a pressure reducing valve 230 is applied to a boiler.
  • the hot water supply apparatus 200 includes a main heat exchanger 241 , a heating supply pipe 214 for supplying heating water, a heating water supply temperature sensor 271 and a three-way valve 272 which are provided on the heating supply pipe 214 , a heating recycle water pipe 215 through which heating return water flows, a circulation pump 270 provided on the heating recycle water pipe 215 , and a heating water supply pipe for supplying hot water 216 which is connected to the three-way valve 272 in order to supply heating water to a heat exchanger for supplying hot water 240 by being connected between the heating supply pipe 214 and the heating recycle water pipe 215 , wherein the hot water supply apparatus has the same constitution as a boiler capable of heating and supplying hot water.
  • a direct water inlet pipe 211 As a constitution for supplying hot water, a direct water inlet pipe 211 , a direct water temperature sensor 221 , a flow rate sensor 222 , a heat exchanger temperature sensor 223 , a hot water supply pipe 212 , a hot water temperature sensor 224 , a bypass pipe 213 , and a pressure reducing valve 230 are formed to have the same constitutions as in the first embodiment.
  • a valve portion for blocking a flow path through which the direct water passes is elastically supported by a spring, and a function of a pressure reducing valve may be implemented by overcoming the elastic force of the spring according to the pressure of the direct water and varying the opening degree of the valve portion.
  • an elastic modulus may be adjusted such that an amount of compression by which the spring is compressed is restricted to a certain amount in consideration of the supply pressure of the direct water, or a stopper may be provided to limit a moving distance of the valve portion.
US15/537,807 2014-12-17 2015-12-17 Hot water supply apparatus provided with pressure reducing valve Abandoned US20170363301A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020140182114A KR101620814B1 (ko) 2014-12-17 2014-12-17 감압밸브가 구비된 온수 공급 장치
KR10-2014-0182114 2014-12-17
PCT/KR2015/013860 WO2016099171A1 (ko) 2014-12-17 2015-12-17 감압밸브가 구비된 온수 공급 장치

Publications (1)

Publication Number Publication Date
US20170363301A1 true US20170363301A1 (en) 2017-12-21

Family

ID=56025095

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/537,807 Abandoned US20170363301A1 (en) 2014-12-17 2015-12-17 Hot water supply apparatus provided with pressure reducing valve

Country Status (6)

Country Link
US (1) US20170363301A1 (ko)
JP (1) JP2018503048A (ko)
KR (1) KR101620814B1 (ko)
CN (1) CN107110558A (ko)
AU (1) AU2015363856A1 (ko)
WO (1) WO2016099171A1 (ko)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170218790A1 (en) * 2016-02-01 2017-08-03 General Electric Company Systems and Methods of Predicting Physical Parameters for a Combustion Fuel System
US20180073749A1 (en) * 2016-09-14 2018-03-15 Lochinvar, Llc Methods And System For Controlling A Combination Boiler
US20180149373A1 (en) * 2016-11-25 2018-05-31 Noritz Corporation Heating device with hot water supply function
US20180180299A1 (en) * 2016-12-22 2018-06-28 Raymond Hallit Automatic firing rate control for a heat exchanger
US20190154304A1 (en) * 2016-07-26 2019-05-23 Noritz Corporation Heating and hot water supply device
US20190154303A1 (en) * 2016-07-26 2019-05-23 Noritz Corporation Heating and hot water supply device
CN110425743A (zh) * 2019-07-25 2019-11-08 广东万家乐燃气具有限公司 一种带膨胀气箱的燃气热水设备
US10969142B2 (en) * 2017-07-27 2021-04-06 Noritz Corporation Heating and hot water supply apparatus and method of controlling the same
US20220003431A1 (en) * 2018-10-25 2022-01-06 Noritz Corporation Heating and hot-water supply device
US11255550B2 (en) * 2017-07-24 2022-02-22 Noritz Corporation Heating and hot water supply device
US11473787B2 (en) * 2018-05-08 2022-10-18 Kyungdong Navien Co., Ltd Boiler for heating and hot-water control method therefor
US11846433B2 (en) * 2019-09-27 2023-12-19 Rheem Manufacturing Company Heated water recirculation control

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107906735A (zh) * 2017-10-30 2018-04-13 西安科锐盛创新科技有限公司 燃气热水器节水装置
CN107842991A (zh) * 2017-10-30 2018-03-27 西安科锐盛创新科技有限公司 节水型燃气热水器
KR20190088218A (ko) * 2018-01-18 2019-07-26 주식회사 경동나비엔 난방 및 급탕공급장치
KR102506014B1 (ko) * 2018-09-17 2023-03-06 주식회사 경동나비엔 난방 및 급탕공급장치
KR102606221B1 (ko) * 2018-12-31 2023-11-27 주식회사 경동나비엔 온수 공급 장치 및 방법
CN112032997B (zh) * 2020-07-22 2022-04-22 青岛经济技术开发区海尔热水器有限公司 燃气热水器及其控制方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7856835B2 (en) * 2007-03-22 2010-12-28 Sanden Corporation Hot water supply apparatus
US20100326646A1 (en) * 2008-06-27 2010-12-30 Yong-Bum Kim Method for controlling a hot water temperature using low flux in hot water supply system
US20110303165A1 (en) * 2009-03-11 2011-12-15 Rinnai Corporation Hot-water supply system
US8285129B2 (en) * 2008-06-24 2012-10-09 Kyungdong One Corporation Hot water supply system for constantly maintaining temperature of hot water
US20120255507A1 (en) * 2009-12-15 2012-10-11 Takayuki Fushiki Hot water supply system
KR101231988B1 (ko) * 2011-03-23 2013-02-08 주식회사 경동나비엔 유량제한밸브가 구비된 각방 제어 시스템 및 이에 구비되는 유량제한밸브
US20160186415A1 (en) * 2014-12-26 2016-06-30 Rinnai Corporation Hot-water supply system

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5768448U (ko) * 1980-10-13 1982-04-24
JPS6311544Y2 (ko) * 1981-05-29 1988-04-04
JPS59125325A (ja) * 1982-12-29 1984-07-19 Matsushita Electric Ind Co Ltd 加熱制御装置
JP2603425Y2 (ja) * 1993-05-17 2000-03-13 株式会社ガスター 給湯器
JPH11132568A (ja) * 1997-10-29 1999-05-21 Noritz Corp 給湯器の弁駆動装置
CN2558920Y (zh) * 2002-07-02 2003-07-02 张福山 壁挂式采暖/热水两用燃气炉
KR20040082566A (ko) * 2003-03-19 2004-09-30 주식회사 경동보일러 온수기의 온수 공급조절장치
KR20040106653A (ko) * 2003-06-11 2004-12-18 주식회사 경동보일러 온수 공급시스템
CN101139846A (zh) * 2006-09-07 2008-03-12 段鳗珊 无内胆贮能双冲力水箱装置
KR100962263B1 (ko) * 2008-02-19 2010-06-11 김태균 내구성이 강화된 감압밸브
KR100960708B1 (ko) * 2008-04-29 2010-06-01 현대건설주식회사 온도조절이 용이한 혼합수 및 냉,온수공급시스템
KR101187043B1 (ko) * 2009-10-14 2012-10-02 (주)에쎈테크 급수용 감압밸브
KR101179812B1 (ko) * 2009-12-03 2012-09-04 주식회사 경동나비엔 온수기의 배관 연결구조
KR101471630B1 (ko) 2013-06-04 2014-12-11 주식회사 삼양발브종합메이커 바이패스 일체형 감압밸브
CN203719138U (zh) * 2014-02-12 2014-07-16 黎建良 一种家用燃气热水器暖卫自动转换装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7856835B2 (en) * 2007-03-22 2010-12-28 Sanden Corporation Hot water supply apparatus
US8285129B2 (en) * 2008-06-24 2012-10-09 Kyungdong One Corporation Hot water supply system for constantly maintaining temperature of hot water
US20100326646A1 (en) * 2008-06-27 2010-12-30 Yong-Bum Kim Method for controlling a hot water temperature using low flux in hot water supply system
US20110303165A1 (en) * 2009-03-11 2011-12-15 Rinnai Corporation Hot-water supply system
US20120255507A1 (en) * 2009-12-15 2012-10-11 Takayuki Fushiki Hot water supply system
KR101231988B1 (ko) * 2011-03-23 2013-02-08 주식회사 경동나비엔 유량제한밸브가 구비된 각방 제어 시스템 및 이에 구비되는 유량제한밸브
US20160186415A1 (en) * 2014-12-26 2016-06-30 Rinnai Corporation Hot-water supply system

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170218790A1 (en) * 2016-02-01 2017-08-03 General Electric Company Systems and Methods of Predicting Physical Parameters for a Combustion Fuel System
US10890359B2 (en) * 2016-07-26 2021-01-12 Noritz Corporation Heating and hot water supply device
US20190154304A1 (en) * 2016-07-26 2019-05-23 Noritz Corporation Heating and hot water supply device
US10989442B2 (en) * 2016-07-26 2021-04-27 Noritz Corporation Heating and hot water supply device
US20190154303A1 (en) * 2016-07-26 2019-05-23 Noritz Corporation Heating and hot water supply device
US10914475B2 (en) * 2016-09-14 2021-02-09 Lochinvar, Llc Methods and system for controlling a combination boiler
US11603996B2 (en) 2016-09-14 2023-03-14 Lochinvar, Llc Methods and system for controlling a combination boiler
US20180073749A1 (en) * 2016-09-14 2018-03-15 Lochinvar, Llc Methods And System For Controlling A Combination Boiler
US20180149373A1 (en) * 2016-11-25 2018-05-31 Noritz Corporation Heating device with hot water supply function
US10883729B2 (en) * 2016-12-22 2021-01-05 Rheem Manufacturing Company Automatic firing rate control for a heat exchanger
US20180180299A1 (en) * 2016-12-22 2018-06-28 Raymond Hallit Automatic firing rate control for a heat exchanger
US11255550B2 (en) * 2017-07-24 2022-02-22 Noritz Corporation Heating and hot water supply device
US10969142B2 (en) * 2017-07-27 2021-04-06 Noritz Corporation Heating and hot water supply apparatus and method of controlling the same
US11473787B2 (en) * 2018-05-08 2022-10-18 Kyungdong Navien Co., Ltd Boiler for heating and hot-water control method therefor
US20220003431A1 (en) * 2018-10-25 2022-01-06 Noritz Corporation Heating and hot-water supply device
US11788735B2 (en) * 2018-10-25 2023-10-17 Noritz Corporation Heating and hot-water supply device
CN110425743A (zh) * 2019-07-25 2019-11-08 广东万家乐燃气具有限公司 一种带膨胀气箱的燃气热水设备
US11846433B2 (en) * 2019-09-27 2023-12-19 Rheem Manufacturing Company Heated water recirculation control

Also Published As

Publication number Publication date
JP2018503048A (ja) 2018-02-01
WO2016099171A1 (ko) 2016-06-23
CN107110558A (zh) 2017-08-29
KR101620814B1 (ko) 2016-05-12
AU2015363856A1 (en) 2017-06-29

Similar Documents

Publication Publication Date Title
US20170363301A1 (en) Hot water supply apparatus provided with pressure reducing valve
CN104596113B (zh) 一种恒温燃气热水器
US20110017152A1 (en) Boiler for supplying heating water and hot water simultaneously
US7744007B2 (en) Thermostatic mixing valves and systems
KR102449159B1 (ko) 난방 온수 겸용 보일러 및 그 제어방법
CN102207288A (zh) 区域可变的燃料喷嘴
US20150050608A1 (en) Gas-air mixing device for combustor
US20170299222A1 (en) Water heater system
CN104613495B (zh) 具有由鼓风机支持的燃烧器的加热器具
US20120319028A1 (en) Fluid control valve assembly
CN105299882A (zh) 燃气热水器及其控制方法
KR101313954B1 (ko) 난방 및 온수 콤비네이션 타입 보일러 장치 및 이를 이용한 난방 및 온수 사용방법
KR101369878B1 (ko) 주방용 가스 버너
US20110089249A1 (en) Thermostatic mixing valve with pressure reducing element
US20100330520A1 (en) Combustion apparatus
GB2549601A (en) Water heater
CN205842058U (zh) 一种管体连接机构及设置有该机构的恒温阀
US10168074B2 (en) Turn down ratio (TDR) damper
US20200191412A1 (en) Boiler system for both heating and hot water
US20230184463A1 (en) Fluid heating apparatus
KR20160062533A (ko) 연소기의 가스량 제어 장치 및 제어 방법
RU2808716C1 (ru) Устройство для нагрева текучей среды
CN210399477U (zh) 燃烧换热设备
KR101408645B1 (ko) 가스버너용 가스공급조절모듈
JP5545443B2 (ja) 燃焼装置

Legal Events

Date Code Title Description
AS Assignment

Owner name: KYUNGDONG NAVIEN CO., LTD., KOREA, REPUBLIC OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SON, SEUNG KIL;KIM, SI HWAN;SONG, YONG MIN;SIGNING DATES FROM 20170614 TO 20170616;REEL/FRAME:042751/0028

STPP Information on status: patent application and granting procedure in general

Free format text: FINAL REJECTION MAILED

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION