EP3029373A1 - Rauchgasrohranordnung - Google Patents

Rauchgasrohranordnung Download PDF

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Publication number
EP3029373A1
EP3029373A1 EP15195086.2A EP15195086A EP3029373A1 EP 3029373 A1 EP3029373 A1 EP 3029373A1 EP 15195086 A EP15195086 A EP 15195086A EP 3029373 A1 EP3029373 A1 EP 3029373A1
Authority
EP
European Patent Office
Prior art keywords
pipe
electrical
flue
wall
assembly according
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.)
Granted
Application number
EP15195086.2A
Other languages
English (en)
French (fr)
Other versions
EP3029373B1 (de
Inventor
Kay-Bernd Lüttgens
Christian Fischer
Stefan Lehminger
Xianshan Han
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.)
Vaillant Wuxi Heating Equipment Co Ltd
Original Assignee
Vaillant Wuxi Heating Equipment 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 Vaillant Wuxi Heating Equipment Co Ltd filed Critical Vaillant Wuxi Heating Equipment Co Ltd
Priority to PL15195086T priority Critical patent/PL3029373T3/pl
Publication of EP3029373A1 publication Critical patent/EP3029373A1/de
Application granted granted Critical
Publication of EP3029373B1 publication Critical patent/EP3029373B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J13/00—Fittings for chimneys or flues 
    • F23J13/04—Joints; Connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2213/00—Chimneys or flues
    • F23J2213/20—Joints; Connections
    • F23J2213/202—Joints; Connections between duct or stack sections

Definitions

  • the present invention relates to fields of domestic gas appliances, and particularly relates to flue pipes for domestic gas appliances.
  • Domestic gas heating appliances generally include gas water heaters, gas boilers, gas stoves and so on.
  • a domestic gas appliance typically has a flue hood and a number of flue pipes connected with the flue hood for collecting combustion products (containing carbon monoxide and nitrogen oxides) of the gas appliance and exhausting them outside.
  • the flue pipes generally includes a number of pipe sections connected in series, and these pipe sections are produced in accordance with appropriate safety standards by recognized suppliers and properly assembled in users' home according to corresponding specifications.
  • dealers may adopt non-standard pipes or hire workers without professional training to assemble the pipes, which may result in instability of the pipe connection and cause risks of gas leakage.
  • the Chinese patent application discloses the conception that the electrical conductors can be used to provide a prompt feedback once a connection problem exists between the pipe sections. Nevertheless, the above solution does not provide reliable mechanical and electrical connection means between the pipe sections.
  • a flue pipe assembly for a gas appliance comprising at least a first pipe section and a second pipe section, and a first electrical conductor and a second electrical conductor attached to the first and the second pipe sections respectively.
  • the flue pipe assembly further comprises a pipe connection mechanism, and said pipe connection mechanism is disposed between the first and the second pipe sections to establish a mechanical connection therebetween, and in the mean time to establish an electrical connection between the first and the second electrical conductors. In this way, reliable mechanical and electrical connections can be establish between pipe sections by the pipe connection mechanism.
  • the pipe connection mechanism comprises a fixed connection device for mechanically connecting adjacent end portions of the first and the second pipe sections.
  • the fixed connection device comprises a connecting ring covering the adjacent end portions of the first and the second pipe sections.
  • the pipe connection mechanism further comprises electrical terminals disposed on the connecting ring to electrically connect the first and the second electrical conductors.
  • each of the first and the second pipe sections is provided with a conductor base with conductive pads electrically connected to the first or the second electrical conductor; each of the electrical terminals has two ends contacting corresponding conductive pads of the first and the second pipe sections.
  • the connecting ring comprises a first portion and a second portion, and the first and the second portions are separate and fixedly connected to the first and the second pipe sections respectively;
  • the electrical terminals comprise a female terminal attached to the first portion and electrically connected to the first electrical conductor of the first pipe section, and a male terminal attached to the second portion and electrically connected to the second electrical conductor of the second pipe section.
  • each of the first and said second electrical conductors comprises two electrical wires; and the electrical terminals are insulatively disposed on the connecting ring.
  • the fixed connection device comprises at least two latching members, and each latching member latches the adjacent end portions of the first and the second pipe sections.
  • each of the first and said second electrical conductors comprises only one electrical wire, and said two latching members are formed differentially.
  • a sealing member is disposed between the first and the second pipe sections.
  • the flue pipe assembly comprises a third pipe section adapted for extending through a wall, a third electrical conductor attached to the third pipe section, a switch electrically connected to the third electrical conductor, and a wall mounting mechanism associated with the third pipe section for mounting the third pipe section to the wall; wherein said switch is turned on at the time when said wall mounting mechanism is mounted to the wall.
  • the wall mounting mechanism comprises a mounting flange and a retaining device; wherein the mounting flange defines a through hole therein for being extended through by the third pipe section, and the retaining device engages with the mounting flange to attach it to the wall.
  • the switch is disposed on the mounting flange at a side facing the wall.
  • Gas appliances could be fired with combustible gas, such as natural gas, city gas, liquefied petroleum gas, methane, etc., thereby supplying thermal energy for domestic usages.
  • combustible gas such as natural gas, city gas, liquefied petroleum gas, methane, etc.
  • gas water heaters for supplying hot water
  • gas boilers for supplying hot water and room heating
  • gas stoves for cooking.
  • a gas water heater will be exemplified hereinafter for illustrating the flue pipe assembly of present invention.
  • a gas water heater 80 can be connected with a flue pipe assembly composed of a number of pipe sections to exhaust combustion products, or can be connected with an elbow pipe to exhaust combustion products, which depends on the position for installing the gas water heater in a room and layout of the room.
  • the gas water heater may include a housing, a gas burner, a heat exchanger, a flue hood, and an air supply fan. Heat generated by the gas burner passes through the heat exchanger and is absorbed by cold water flowing through the heat exchanger. The combustion products are driven by the fan and collected by the flue hood, and further discharged outside via the flue pipe assembly which is connected with the flue hood.
  • As the configurations of gas water heaters are well known in the art, a detailed explanation is omitted for sake of brevity.
  • the pipe section can be a straight pipe, such as the pipe sections labeled in 11, 12, 13, can also be an elbow pipe, like the pipe section labeled in 14.
  • the pipe section can be an intermediate pipe, such as the pipe sections labeled in 11, 12, 14, can also be an end pipe extending through a wall 90, like the pipe section labeled in 13.
  • Each intermediate pipe section has the same structure, and it has two opposite end portions with complementary configuration, in this way, two adjacent pipe sections can be connected fluently.
  • Each intermediate pipe section 11, 12, 14 has a longitudinally extending slot defined in an outer wall thereof, and an electrical conductor 41 is received in the slot.
  • the electrical conductor is a cable including two electrical wires 411, 412, and a conductor base 511 is embedded in the outer wall at each end portion of the intermediate pipe section 11, 12, 14.
  • the two electrical wires 411, 412 extend into the conductor base 511 and are respectively electrically connected with two conductive pads 5111, 5112 disposed on an upper surface of each conductor base.
  • Fig. 2 through Fig. 5 show a first pipe section 11 and a second pipe section 12 which are positioned adjacent to each other and mechanically and electrically connected via a first pipe connection mechanism.
  • the adjacent end portions of the first and the second pipe sections 11, 12 are provided with guiding post 112 and guiding groove 122 respectively, so that the two adjacent pipe sections can be connected fluently.
  • the end portion of the second pipe section 12 encircles the end portion of the first pipe section 11.
  • the end portion of the second pipe section 12 circumferentially defines a receiving groove in an inner wall thereof, and a sealing member 101 is received in this receiving groove. In this way, the first and the second pipe sections 11, 12 are sealed at the connection therebetween.
  • the sealing member 101 is a sealing ring made of rubber material. It would be apparent to those skilled in the art that, in other embodiments, the guiding post and the guiding groove can change positions to each other, and the sealing member can also be disposed on the outer wall of the end portion of the first pipe section 11. In this embodiment, the first and the second pipe section 11, 12 are formed with positioning posts 111, 121 respectively on the outer wall of end portions thereof.
  • the pipe connection mechanism includes a fixed connection device for realization of a reliable mechanical connection between the first and the second pipe sections 11, 12.
  • the fixed connection device includes a connecting ring 21.
  • This connecting ring 21 has a terminal receiving chamber 211, positioning holes 212, and mounting holes 213.
  • the pipe connection mechanism further includes electrical terminals 512 fixed on the connecting ring 21 for establishing an electrical connection between a first electrical conductor of the first pipe section 11 and a second electrical conductor of the second pipe section 12.
  • the electrical terminals include two terminals (only one is shown in Fig. 5 ) both received in the terminal receiving chamber 211.
  • Each electrical terminal 512 has a terminal body and an elastic contacting arm 5121.
  • the terminal body is fixed in the terminal receiving chamber 211 with an insulative layer formed between the electrical terminal 512 and an inner wall of the terminal receiving chamber 211 to avoid an electrical conduction between the electrical terminals 512 and the connecting ring 21.
  • the connecting ring 21 covers the adjacent end portions of the first and the second pipe sections 11, 12, and the connecting ring 21 is fixed to the first and the second pipe sections 11, 12 via the engagement of the positioning posts 111, 121 and the positioning holes 212.
  • Fastening members (not shown), such as bolts can extend through the mounting holes to fasten the connecting ring 21 to the pipe sections and forming a solid connection between the first and the second pipe sections 11, 12.
  • the two elastic contacting arms 5121 of the electrical terminals 512 contact against the conductive pads 5111, 5112 of the conductor bases of the first and the second pipe sections 11, 12 respectively, thereby realizing the electrical connection of the first and the second electrical conductors.
  • the mechanical connection between adjacent pipe sections becomes stable and reliable by introducing the pipe connection mechanism, which can reduce the case of disconnection of pipe sections. Even if a disconnection of pipe sections happens or the installing of the flue pipe assembly does not meet the requirements, as a result, the electrical conductors connected in series are broken, then a controller of the gas water heater can sense it and take actions accordingly, such as stop running of the gas water heater to avoid leakage of flue gas.
  • a third pipe section namely an end pipe section 13 extends through a wall and secures to the wall via a wall mounting mechanism.
  • the end pipe section 13 has one end located inside the room and mechanically, electrically connected with an adjacent intermediate pipe section 12 via the pipe connection mechanism as described above.
  • the wall mounting mechanism includes a mounting flange 31 with a central through hole for being passed through by the end pipe section 13.
  • the through hole has a size substantially same as that of a cross section of the end pipe section 13. In this way, in case there is a reverse wind outside, the flue gas discharged outside would not return inner of the room via the gap between the end pipe section and the wall.
  • the mounting flange 31 defines a circular groove at a surface thereof facing the wall for receiving a sealing element 311.
  • the sealing element is a sealing ring made of rubber material.
  • the mounting flange 31 defines mounting holes 313, and fastening members, such as bolts extend through the mounting holes 313 to fasten the mounting flange 31 onto the wall.
  • a switch 61 is disposed at the surface of the mounting flange 31 facing to the wall, and the switch 61 is connected with a third electrical conductor of the end pipe section 13 in series.
  • the switch 41 can be a pressing switch, a reed switch, or other contact switch, can also be a proximity switch, a photoelectric switch, or other non-contact switches.
  • the switch 61 is turned on, and at the same time, an electric current is generated and passes through the parallel wires 411, 412 of the electrical conductor 41 in reverse directions.
  • the end pipe section can be secured to the wall via the wall mounting mechanism, which can reduce the case of disconnection of pipe sections.
  • the controller of the gas water heater can sense it and take actions accordingly, such as stop running of the gas water heater to avoid leakage of flue gas.
  • Fig. 8 through Fig. 10 shows a flue pipe assembly in accordance with a second embodiment of present invention.
  • the connecting ring includes a first portion 221 and a second portion 222.
  • the first and the second portions 221, 222 are separate and fixed to adjacent end portions of the first and the second pipe sections 11, 12 respectively via bolts.
  • the first and the second portions 221, 222 are respectively provided with terminal bases 521, 522.
  • the electrical terminals include a female terminal (not shown) retained in the terminal base 521 and electrically connected to the first electrical conductor, and a male terminal 5221 retained in the terminal base 522 and electrically connected to the second electrical conductor.
  • the male terminal 5221 electrically contacts the female terminal, and the first portion 221 and the second portion 222 are fastened together via bolts.
  • a dust-proof cover 223 covers the terminal bases 521, 522 after assembling.
  • a sealing member 102 is provided between the first and the second pipe section 11, 12 to ensure a sealing connection therebetween.
  • Figs. 11 and 12 show a third embodiment of the flue pipe assembly.
  • the electrical conductor 41 includes only one electrical wire
  • the pipe sections are made of metallic material to perform as the other electrical wire as disclosed in aforementioned embodiments.
  • the fixed connection device includes at least two latching members 231, 232, and these two latching members are both disposed at one end portion of a pipe section.
  • the two latching members 231, 232 each latches adjacent end portions of the first and the second pipe sections 11, 12, thereby achieving a reliable mechanical connection between the pipe sections.
  • the latching members 231, 232 also act as terminals to establish an electrical connection between the electrical conductors of the pipe sections.
  • One latching member 231 is located adjacent to the electrical conductor 43, and it has a different design with respect to the other latching member 232.
  • the latching members have different structures, different size, or different colors. In this way, when connecting two pipe sections, the electrical conductors of the two pipe sections can be connected without mistakes.
  • a sealing member 103 is provided between the first and the second pipe section 11, 12 to ensure a sealing connection therebetween.
  • Figs. 13 and 14 show a fourth embodiment of the flue pipe assembly.
  • the wall mounting mechanism includes a mounting flange 321 and a retaining device.
  • the retaining device includes a restricting member 322 encircling the end pipe section 13, an additional flange 323 having a central hole for being passed through by the end pipe section 13, and a circular wedge-shaped piece 324.
  • the mounting flange 321 and the additional mounting flange 323 are located at opposite sides of the wall 90.
  • the mounting flange 321 has one side opposite to the wall 90 abuts against the restricting member 322, and the additional mounting flange 323 has one side opposite to the wall 90 is abut against by the wedge-shaped piece 324.
  • the end pipe section 13 can be secured to the wall 90 reliably.
  • a switch 62 and a sealing member 325 are disposed between the mounting flange 321 and the wall 90.
  • Fig. 15 and Figs. 16A-16C show a fifth embodiment of the flue pipe assembly.
  • the wall mounting mechanism includes a mounting flange 331 and a retaining device.
  • the retaining device includes two restricting devices 332 and a circular wedge-shaped piece 333.
  • Each restricting device 332 includes an first arm 3321 and an second arm 3322 forming an angle therebetween, and an torsion springs 3323 engaged with the first and the second arms 3321, 3322.
  • the first and the second arms 3321, 3322 is able to together rotate on a pivot which is encircled by the torsion spring 3323.
  • the first arm 3321 is shorter than the second arm 3322.
  • the switch 63 is provided on the end pipe section 13 and engageable with the first arm 3321.
  • the first arm 3321 and the second arm 3322 each has a distal end lift up above the end pipe section 13 in a natural state.
  • the second arm 3322 is pressed by the wall and return to its natural state after lost of interference with the wall.
  • the mounting flange 331 and the wedge-shaped piece 333 are disposed at one side of the wall 90 opposite to the other side where the restricting device 332 positions.
  • the mounting flange 331 is abut against by the wedge-shaped piece 333 at its one side, and the mounting flange 331 abuts against the wall 90 at its the other side.
  • the second arm 3322 is forced to abut against the wall, and the second arm 3321 pressed the switch to activate it on.
  • a sealing member 334 is disposed between the mounting flange 331 and the wall 90.
  • the heat exchanger can be set with more sections of fins corresponding to more combustion stages of a burner.
  • the heat exchanger can also be used in a gas boiler or other gas water heating appliance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Incineration Of Waste (AREA)
EP15195086.2A 2014-12-02 2015-11-18 Rauchgasrohranordnung Active EP3029373B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15195086T PL3029373T3 (pl) 2014-12-02 2015-11-18 Zespół rury kominowej

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410773021.7A CN104501191B (zh) 2014-12-02 2014-12-02 用于燃气设备的排烟管组件

Publications (2)

Publication Number Publication Date
EP3029373A1 true EP3029373A1 (de) 2016-06-08
EP3029373B1 EP3029373B1 (de) 2019-07-31

Family

ID=52942622

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15195086.2A Active EP3029373B1 (de) 2014-12-02 2015-11-18 Rauchgasrohranordnung

Country Status (4)

Country Link
EP (1) EP3029373B1 (de)
CN (1) CN104501191B (de)
ES (1) ES2752153T3 (de)
PL (1) PL3029373T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3401595A1 (de) * 2017-05-09 2018-11-14 Vaillant GmbH Gasgerätesystem mit erkennung der korrekten installation des rauchrohres

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105387477B (zh) * 2015-11-20 2018-05-15 威能(无锡)供热设备有限公司 排烟管组件及采用该组件的燃气设备系统
CN105526596B (zh) * 2016-02-05 2017-10-31 河北工业大学 燃气热水器烟气温差发电烟管装置
CN107101239A (zh) * 2017-06-13 2017-08-29 湖州万隆住宅环保科技有限公司 一种排烟管
CN111502798B (zh) 2017-09-07 2022-03-01 天津大创科技有限公司 基于导电回路机理的管路断开检测系统及汽车
WO2021062977A1 (zh) * 2019-09-30 2021-04-08 芜湖美的厨卫电器制造有限公司 燃气热水器设备及用于燃气热水设备的限流件
CN111089381B (zh) * 2019-12-24 2021-07-09 蓝鹏 一种多层地下车库排烟系统及其多层地下车库

Citations (4)

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Publication number Priority date Publication date Assignee Title
JP2000035217A (ja) * 1998-07-17 2000-02-02 Rinnai Corp 燃焼装置及びこれに使用される単位排気筒
JP2011149597A (ja) * 2010-01-20 2011-08-04 Rinnai Corp 燃焼器具
CN103411315A (zh) * 2013-08-09 2013-11-27 威能(北京)供暖设备有限公司 燃气热水器排烟管安全保护装置
CN103615806A (zh) 2013-08-09 2014-03-05 威能(北京)供暖设备有限公司 燃气热水器排烟管安全保护装置

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JP5011801B2 (ja) * 2006-04-11 2012-08-29 日本精工株式会社 電動パワーステアリング装置
ATE538488T1 (de) * 2006-06-30 2012-01-15 Sharp Kk Elektrische entladungsröhre, ringbeschlag und beleuchtungsvorrichtung, anzeige sowie fernsehempfänger mit dieser entladungsröhre
US9038259B2 (en) * 2010-12-23 2015-05-26 Eaton Corporation Fluid connector with a hose cutting clip
JP5782649B2 (ja) * 2011-08-04 2015-09-24 株式会社トヨックス 管接続構造
CN203384530U (zh) * 2013-07-19 2014-01-08 武汉海纳川科技有限公司 一体化气液流体与电信号复合传送插座及带管线插头

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000035217A (ja) * 1998-07-17 2000-02-02 Rinnai Corp 燃焼装置及びこれに使用される単位排気筒
JP2011149597A (ja) * 2010-01-20 2011-08-04 Rinnai Corp 燃焼器具
CN103411315A (zh) * 2013-08-09 2013-11-27 威能(北京)供暖设备有限公司 燃气热水器排烟管安全保护装置
CN103615806A (zh) 2013-08-09 2014-03-05 威能(北京)供暖设备有限公司 燃气热水器排烟管安全保护装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3401595A1 (de) * 2017-05-09 2018-11-14 Vaillant GmbH Gasgerätesystem mit erkennung der korrekten installation des rauchrohres

Also Published As

Publication number Publication date
EP3029373B1 (de) 2019-07-31
PL3029373T3 (pl) 2020-05-18
CN104501191A (zh) 2015-04-08
CN104501191B (zh) 2017-02-01
ES2752153T3 (es) 2020-04-03

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