JP5600561B2 - Water heater - Google Patents

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JP5600561B2
JP5600561B2 JP2010257394A JP2010257394A JP5600561B2 JP 5600561 B2 JP5600561 B2 JP 5600561B2 JP 2010257394 A JP2010257394 A JP 2010257394A JP 2010257394 A JP2010257394 A JP 2010257394A JP 5600561 B2 JP5600561 B2 JP 5600561B2
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heat exchanger
silencer
heat exchange
hot water
silencing
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JP2012107813A (en
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勉 白井
順也 綿貫
行隆 中村
明和 高橋
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Corona Corp
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Corona Corp
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Description

この発明は、排気ガスの潜熱を回収して効率の向上を図った給湯装置に関するものである。   The present invention relates to a hot water supply apparatus that recovers latent heat of exhaust gas to improve efficiency.

従来からこの種のものに於いては、例えば水道水の水圧をそのまま利用して給湯する直圧式の給湯装置では、バーナユニットの上方に主熱交換部を設け、その主熱交換部の下流、つまり上部に排気ガスの潜熱を回収する副熱交換部と、排気ガスが通流する排気流路を設け、副熱交換部上流側の排気流路に消音部を設けたものがある。(例えば、特許文献1)   Conventionally, in this type, for example, in a direct pressure hot water supply apparatus that uses hot water pressure as it is, a main heat exchange unit is provided above the burner unit, downstream of the main heat exchange unit, In other words, there is an auxiliary heat exchanger that recovers the latent heat of the exhaust gas and an exhaust passage through which the exhaust gas flows, and a silencer that is provided in the exhaust passage upstream of the auxiliary heat exchanger. (For example, Patent Document 1)

特開2008−2700号公報JP 2008-2700 A

ところでこの従来のものでは、直圧式のため貯湯部が必要なく、機器本体内に主熱交換部と、副熱交換部と、排気流路を設け、副熱交換部上流側の排気流路に消音部を設けても機器本体がさほど大きくならなかったが、貯湯式の給湯装置では、機器本体内に貯湯部があるため、機器本体内に主熱交換部でもある貯湯部のほかに、副熱交換部と排気流路を設け、更に副熱交換部上流側の排気流路に消音部を設けると、機器本体が大きくなってしまうという問題があった。   By the way, in this conventional type, a hot water storage part is not necessary because it is a direct pressure type, and a main heat exchange part, a sub heat exchange part, and an exhaust passage are provided in the apparatus main body, and an exhaust passage upstream of the sub heat exchange part is provided. Although the equipment main body did not become very large even if a silencer was provided, in the hot water storage type water heater, there is a hot water storage part in the equipment main body, so in addition to the hot water storage part that is also the main heat exchange part in the equipment main body, If a heat exchange part and an exhaust flow path are provided, and if a sound deadening part is provided in the exhaust flow path upstream of the auxiliary heat exchange part, there is a problem that the device main body becomes large.

この発明はこの点に着目し上記課題を解決する為、特にその構成を、バーナを配置した燃焼室と、該燃焼室の上方に位置し内部に燃焼ガスが通過する熱交換パイプを配置した缶体部と、該缶体部の上方に消音部と副熱交換器部とを設けた給湯装置に於いて、前記消音部と副熱交換器部とを横方向に並列に配置して一体に構成した消音副熱交換器部を設け、前記消音部は中間に消音材を備え略ロの字状の消音排気路が形成されており、前記副熱交換部は中間に受け皿部を備え蛇行した熱回収排気路に二次熱交パイプを沿わせて形成したものである。 This invention pays attention to this point and solves the above-mentioned problems. In particular, the structure is composed of a combustion chamber in which a burner is disposed, and a heat exchange pipe that is disposed above the combustion chamber and through which combustion gas passes. In a water heater provided with a body part and a muffler part and a sub heat exchanger part above the can body part, the muffler part and the sub heat exchanger part are arranged in parallel in the lateral direction and integrated A muffler auxiliary heat exchanger unit configured is provided , the muffler unit includes a muffler in the middle and a substantially square-shaped muffler exhaust passage is formed, and the sub heat exchanger unit has a meandering plate provided in the middle. The secondary heat exchanger pipe is formed along the heat recovery exhaust passage .

この発明によれば、缶体部の上方に消音部と副熱交換器部とを横方向に並列に配置して一体に構成した消音副熱交換器部を設けたので、貯湯式の給湯装置に副熱交換器部を設けても、給湯装置の寸法、特に高さを低くすることができるものである。
又消音副熱交換器部は排気路の上流側に消音部を設け、該消音部の下流側に副熱交換器部を設けたので、上流で高温で音速が大きく、同一周波数でも波長が短い燃焼ガスの消音を小さい消音部で効率よく行うことができ、更に、下流で消音されて高温の燃焼ガスから潜熱と顕熱の大部分が吸熱して給湯装置の熱効率を向上させ、又、副熱交換器部で発生した結露水で消音部の消音材を腐食させることなく中和器で中和させることができるものである。
According to this inventions, since there is provided a muffler sub heat exchanger unit configured integrally with silencer and auxiliary heat exchanger unit upward and laterally disposed in parallel can body portion, a hot water supply of the hot water storage type Even if the auxiliary heat exchanger portion is provided in the apparatus, the size, particularly the height of the hot water supply apparatus can be reduced.
In addition, the silencing sub heat exchanger section is provided with a silencing section upstream of the exhaust passage and a sub heat exchanger section downstream of the silencing section, so that the sound velocity is high at high temperature upstream and the wavelength is short even at the same frequency. The combustion gas can be silenced efficiently with a small silencer, and further, the latent heat and sensible heat are absorbed from the high-temperature combustion gas by being silenced downstream to improve the thermal efficiency of the hot water supply device. The water can be neutralized by the neutralizer without corroding the silencer in the silencer with the condensed water generated in the heat exchanger.

この発明の一実施形態を示す給湯装置の概略図。BRIEF DESCRIPTION OF THE DRAWINGS Schematic of the hot water supply apparatus which shows one Embodiment of this invention. 同消音副熱交換器部の断面図。Sectional drawing of the sound deadening sub-heat exchanger part. 同消音部の断面図。Sectional drawing of the sound deadening part. 同副熱交換器部の断面図。Sectional drawing of the sub-heat exchanger part.

次に、本発明に係る発明の1実施形態を図面に基づいて説明する。
1は主熱交換器であり全体を筒状に形成した給湯装置の缶体部、2は缶体部1の下部側方に設けた石油燃料を用いるバーナ、3は燃焼を行う燃焼室であり、該燃焼室3は缶体部1の下部に配置し、燃焼室3の側部にバーナ2を配置して、バーナ2の端部を燃焼室3内にのぞませている。
Next, one embodiment of the present invention will be described with reference to the drawings.
Reference numeral 1 denotes a main heat exchanger, a can body part of a hot water supply apparatus formed in a cylindrical shape as a whole, 2 a burner using petroleum fuel provided on the lower side of the can body part 1, and 3 a combustion chamber for performing combustion The combustion chamber 3 is disposed below the can body 1, the burner 2 is disposed on the side of the combustion chamber 3, and the end of the burner 2 is looked into the combustion chamber 3.

前記缶体部1は内部に給水管4より水道水が貯水され、又缶体部1内に多数の煙道を構成する熱交換パイプ5が複数配置され、燃焼室3での燃焼ガスが熱交換パイプ5を通過する際、熱交換パイプ5内の高温燃焼ガスと缶体部1内の貯水との間で熱交換されて缶体部1内の水が高温水に加熱され、缶体部1内に高温水が貯湯されるものである。
そして缶体部1内に貯湯された高温水は出湯管6により出湯されて給湯するものである。
The can body 1 stores tap water from a water supply pipe 4 therein, and a plurality of heat exchange pipes 5 constituting a large number of flues are arranged in the can body 1 so that the combustion gas in the combustion chamber 3 is heated. When passing through the exchange pipe 5, heat is exchanged between the high-temperature combustion gas in the heat exchange pipe 5 and the stored water in the can body part 1, and the water in the can body part 1 is heated to high-temperature water, and the can body part Hot water is stored in 1.
The hot water stored in the can body 1 is discharged from the hot water discharge pipe 6 to supply hot water.

7は消音副熱交換器部で、缶体部1上部に配置され、消音部8と副熱交換器部9を横方向に並列に配置して一体に構成されており、排気路に対して上流側に消音部8を配置し、該消音部8の下流側に副熱交換器部9が配置され、缶体部1内の熱交換パイプ5内を通過した燃焼ガスは、消音部8を通過して消音された後副熱交換器部9を通過することにより、燃焼ガスの潜熱と顕熱の大部分を吸熱され、排気口10より給湯器本体から排気されるものである。   7 is a silencing sub heat exchanger part, which is arranged at the upper part of the can body part 1 and is constructed integrally by arranging the silencing part 8 and the sub heat exchanger part 9 in parallel in the lateral direction. A silencer 8 is disposed on the upstream side, a sub heat exchanger 9 is disposed on the downstream side of the silencer 8, and the combustion gas that has passed through the heat exchange pipe 5 in the can body 1 passes through the silencer 8. By passing through the auxiliary heat exchanger section 9 after being silenced, most of the latent heat and sensible heat of the combustion gas are absorbed and exhausted from the water heater main body through the exhaust port 10.

前記消音部8は、ロックウールやグラスウール等の消音材11と、多数の穴を設けたパンチングガイド板12とからなり、パンチングガイド板12により略ロの字状の消音排気路13を形成し、該消音排気路13の周りを消音材11で充填しているものである。   The silencer 8 comprises a silencer 11 such as rock wool or glass wool, and a punching guide plate 12 provided with a number of holes. The punching guide plate 12 forms a substantially square-shaped silencer exhaust passage 13, The silencer exhaust passage 13 is filled with a silencer 11.

前記副熱交換器部9は、該副熱交換器部9内を蛇行して設けられ、副熱交換器部9内の上部に入水口14を設け、副熱交換器部9内の下部に出水口15を設けた二次熱交パイプ16と、副熱交換器部9内上部に設けられたフィン状の二次熱交バッフル17と、蛇行する二次熱交パイプ16の下に傾斜して設けられ、二次熱交パイプ16から落下する結露水をスムーズに副熱交換器部9の底部に設けた結露水排水口18に流すと共に、副熱交換器部9内を蛇行した熱回収排気路19を形成する受け皿部20を備え、熱回収排気路19の下流に排気口10を設けたものである。   The auxiliary heat exchanger section 9 is provided meandering in the auxiliary heat exchanger section 9, a water inlet 14 is provided in the upper portion of the auxiliary heat exchanger section 9, and the lower portion in the auxiliary heat exchanger section 9 is provided. The secondary heat exchange pipe 16 provided with the outlet 15, the fin-like secondary heat exchange baffle 17 provided in the upper part of the sub heat exchanger section 9, and the meandering secondary heat exchange pipe 16 are inclined below. The condensed water that flows from the secondary heat exchanger pipe 16 smoothly flows to the condensed water drain port 18 provided at the bottom of the auxiliary heat exchanger unit 9 and the heat recovery meanders in the auxiliary heat exchanger unit 9 A tray 20 that forms the exhaust path 19 is provided, and an exhaust port 10 is provided downstream of the heat recovery exhaust path 19.

21は中和剤が内蔵された中和器で、一端が副熱交換器部9の結露水排水口18に接続された結露水管22から流れてきた強酸性の結露水を中和するものである。   21 is a neutralizer with a built-in neutralizing agent, and neutralizes strongly acidic condensed water flowing from a condensed water pipe 22 having one end connected to the condensed water discharge port 18 of the auxiliary heat exchanger section 9. is there.

次にこの給湯装置の動作を説明する。
給湯蛇口(図示せず)を開くと、出湯管6により缶体部1内の高温水が出湯されて給湯運転が開始される。
それと同時に給水管4から二次熱交パイプ16の入水口14に水道水が流入し、二次熱交パイプ16内を通過して、二次熱交パイプ16の出水口15から給水管4を通って缶体部1内に流入するものである。
Next, the operation of this hot water supply apparatus will be described.
When a hot water supply faucet (not shown) is opened, the hot water in the can body 1 is discharged from the hot water discharge pipe 6 and the hot water supply operation is started.
At the same time, tap water flows from the water supply pipe 4 into the inlet 14 of the secondary heat exchange pipe 16, passes through the secondary heat exchange pipe 16, and passes through the water supply pipe 4 from the outlet 15 of the secondary heat exchange pipe 16. It flows into the can body part 1 through.

そして缶体部1内の温水の温度が徐々に低下し、これを温度センサー(図示せず)が検出して、燃焼室3でバーナ2にて燃料を燃焼させ、その燃焼ガスが燃焼室3から缶体部1内の熱交換パイプ5を通過し、その際、熱交換パイプ5内の高温の燃焼ガスと缶体部1内の貯水との間で熱交換されて缶体部1内の水を加熱するものである。   Then, the temperature of the hot water in the can body 1 gradually decreases, and this is detected by a temperature sensor (not shown). The fuel is burned in the burner 2 in the combustion chamber 3, and the combustion gas is burned into the combustion chamber 3. Is passed through the heat exchange pipe 5 in the can body part 1, and at that time, heat is exchanged between the high-temperature combustion gas in the heat exchange pipe 5 and the stored water in the can body part 1. Water is heated.

熱交換パイプ5内を通過して缶体部1で顕熱を吸熱された燃焼ガスは、熱交換パイプ5から消音副熱交換器部7の消音部8に流入する。
消音部8に流入した燃焼ガスは、まだ高温で音速が大きく、同一周波数でも波長が短いので、消音部8を副熱交換器部9の上流側に配置することにより、小容積の消音部8でも低周波を効果的に消音できるものである。
また、消音部8を副熱交換器部9の上流側に配置することで、まだ燃焼ガスが結露水を生じるほど温度が低下しておらず、結露水による消音材11の腐食を防止できるものである。
The combustion gas that has passed through the heat exchange pipe 5 and has absorbed the sensible heat in the can body 1 flows into the silencer 8 of the silencer auxiliary heat exchanger 7 from the heat exchange pipe 5.
The combustion gas that has flowed into the silencer 8 is still high in temperature, has a high sound speed, and has a short wavelength even at the same frequency. Therefore, by arranging the silencer 8 upstream of the auxiliary heat exchanger 9, the small volume silencer 8 But it can effectively mute low frequencies.
Further, by disposing the silencer 8 on the upstream side of the auxiliary heat exchanger 9, the temperature has not yet decreased so that the combustion gas generates condensed water, and corrosion of the silencer 11 due to condensed water can be prevented. It is.

消音部8を通過した燃焼ガスは、消音副熱交換器部7の副熱交換器部9に流入する。
副熱交換器部9に流入した燃焼ガスは、副熱交換器部9内の蛇行した熱回収排気路19を通過して排気口10より給湯装置の外に排気される。
この時、熱回収排気路19内に配置された二次熱交パイプ16内を流れる水道水と熱交換し、缶体部1内に流入する水道水を加熱するものであ。
The combustion gas that has passed through the silencer 8 flows into the auxiliary heat exchanger 9 of the silencer auxiliary heat exchanger 7.
The combustion gas flowing into the auxiliary heat exchanger section 9 passes through the meandering heat recovery exhaust passage 19 in the auxiliary heat exchanger section 9 and is exhausted from the exhaust port 10 to the outside of the hot water supply apparatus.
At this time, heat is exchanged with the tap water flowing in the secondary heat exchange pipe 16 disposed in the heat recovery exhaust passage 19, and the tap water flowing into the can body 1 is heated.

ここで、二次熱交パイプ16で熱交換後の燃焼ガスは低温になり、熱回収排気路19で結露が発生する場合がある。
副熱交換器部9で熱交換後の排気路に消音部8を配置すると、強酸性の結露水で消音部8の消音材11が腐食してしまう恐れがあるが、副熱交換器部9の上流側の排気路に消音部8を配置することにより、結露水による消音材11の腐食を防止できるものである。
Here, the combustion gas after heat exchange in the secondary heat exchange pipe 16 becomes low temperature, and condensation may occur in the heat recovery exhaust passage 19.
If the silencer 8 is disposed in the exhaust path after heat exchange in the auxiliary heat exchanger unit 9, the silencer 11 of the silencer 8 may be corroded by strongly acidic condensed water. However, the auxiliary heat exchanger unit 9 By disposing the silencer 8 in the upstream exhaust path, corrosion of the silencer 11 due to condensed water can be prevented.

以上のように、缶体部1の上部に消音部8と副熱交換器部9とを横方向に一体に設けたことにより、給湯装置の寸法、特に高さを低くすることが出来、また、排気路に対して上流に消音部8を配置し、下流に副熱交換器部9を配置したことにより、上流で高温で音速が大きく、同一周波数でも波長が短い燃焼ガスの消音を小さい消音部8で効率よく行うことができ、更に、下流で消音されて高温の燃焼ガスから潜熱と顕熱の大部分が吸熱して給湯装置の熱効率を向上させ、又、副熱交換器部9で発生した結露水で消音部8の消音材11を腐食させることなく中和器21で中和させることができるものである。   As described above, the silencer 8 and the auxiliary heat exchanger 9 are integrally provided in the lateral direction on the upper portion of the can body 1, thereby reducing the size, particularly the height of the water heater, Since the silencer 8 is disposed upstream of the exhaust passage and the auxiliary heat exchanger 9 is disposed downstream, the silencer of the combustion gas having a high sound velocity at a high upstream temperature and a short wavelength even at the same frequency is smallly silenced. It can be efficiently performed in the section 8, and further, most of the latent heat and sensible heat is absorbed from the high-temperature combustion gas that is silenced downstream to improve the thermal efficiency of the hot water supply apparatus. The generated condensed water can be neutralized by the neutralizer 21 without corroding the silencer 11 of the silencer 8.

1 缶体部
2 バーナ
3 燃焼室
5 熱交換パイプ
7 消音副熱交換器部
8 消音部
9 副熱交換器部
DESCRIPTION OF SYMBOLS 1 Can body part 2 Burner 3 Combustion chamber 5 Heat exchange pipe 7 Silent auxiliary heat exchanger part 8 Silent part 9 Sub heat exchanger part

Claims (1)

バーナを配置した燃焼室と、該燃焼室の上方に位置し内部に燃焼ガスが通過する熱交換パイプを配置した缶体部と、該缶体部の上方に消音部と副熱交換器部とを設けた給湯装置に於いて、前記消音部と副熱交換器部とを横方向に並列に配置して一体に構成した消音副熱交換器部を設け、前記消音部は中間に消音材を備え略ロの字状の消音排気路が形成されており、前記副熱交換部は中間に受け皿部を備え蛇行した熱回収排気路に二次熱交パイプを沿わせて形成したことを特徴とする給湯装置。 A combustion chamber in which a burner is disposed; a can body portion that is located above the combustion chamber and in which a heat exchange pipe through which combustion gas passes is disposed; and a muffler portion and a sub heat exchanger portion above the can body portion; In the hot water supply apparatus provided with the above, the silencing part and the auxiliary heat exchanger part are arranged in parallel in the lateral direction to provide a silencing auxiliary heat exchanger part, and the silencing part has a silencing material in the middle. A substantially B-shaped muffled exhaust path is formed, and the sub heat exchange part is formed with a secondary heat exchange pipe along a meandering heat recovery exhaust path with a receiving part in the middle. Hot water supply device.
JP2010257394A 2010-11-18 2010-11-18 Water heater Expired - Fee Related JP5600561B2 (en)

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JP5945217B2 (en) * 2012-11-27 2016-07-05 株式会社コロナ Water heater
JP5951463B2 (en) * 2012-12-19 2016-07-13 株式会社コロナ Secondary heat exchanger for latent heat recovery water heater
JP5951467B2 (en) * 2012-12-20 2016-07-13 株式会社コロナ Secondary heat exchanger for latent heat recovery water heater
JP5968798B2 (en) * 2013-01-22 2016-08-10 株式会社コロナ Latent heat recovery water heater

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JP2006183912A (en) * 2004-12-27 2006-07-13 Noritz Corp Combustion apparatus
JP4621930B2 (en) * 2005-01-26 2011-02-02 株式会社ノーリツ Oil reverse combustion water heater
JP2008002700A (en) * 2006-06-20 2008-01-10 Matsushita Electric Ind Co Ltd Water heater
JP2009030908A (en) * 2007-07-27 2009-02-12 Noritz Corp Combustion equipment, and latent heat recovering water heater
JP5262349B2 (en) * 2008-06-27 2013-08-14 株式会社ノーリツ Water heater

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