JPS62248957A - Instantaneous gas-fired hot water supplier - Google Patents

Instantaneous gas-fired hot water supplier

Info

Publication number
JPS62248957A
JPS62248957A JP9431186A JP9431186A JPS62248957A JP S62248957 A JPS62248957 A JP S62248957A JP 9431186 A JP9431186 A JP 9431186A JP 9431186 A JP9431186 A JP 9431186A JP S62248957 A JPS62248957 A JP S62248957A
Authority
JP
Japan
Prior art keywords
water supply
pipe
hot water
return
supply pipe
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
JP9431186A
Other languages
Japanese (ja)
Other versions
JPH0345293B2 (en
Inventor
Hiroshi Kobayashi
博志 小林
Hisashi Nakamura
久志 中村
Atsuo Makita
牧田 厚雄
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.)
Toto Ltd
Original Assignee
Toto 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 Toto Ltd filed Critical Toto Ltd
Priority to JP9431186A priority Critical patent/JPS62248957A/en
Publication of JPS62248957A publication Critical patent/JPS62248957A/en
Publication of JPH0345293B2 publication Critical patent/JPH0345293B2/ja
Granted legal-status Critical Current

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Landscapes

  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)

Abstract

PURPOSE:To make it possible to constitute a circulating flow passage for heat retaining without complicating piping arrangement by a structure wherein a return pipe connecter equipped with a pump is connected to the midway of a water supply pipe line and a non-return valve and a vacuum breaking valve are installed on the upstream side from the connection point in the water supply pipe line. CONSTITUTION:A hot water supplier main body (a) is equipped with two burners 10 and 11 with respect to a single heat exchanger 9. A return pipe connecter 4 is connected to the midway of a water supply pipe 2', in which a pressure reducing valve 28 integrally incorporating a non-return valve 5 and a vacuum breaking valve 6 is mounted on the upstream side from the connection point. The water supply piping 21 and hot water supply piping 22 of a building are respectively connected to the outlet of the heat exchanger 9 and to the water supply pipe 2'. At the same time, a return pipe 30 branched off from the hot water supply piping 22 is connected to the connecting port 31 of the connecting pipe 4 to the return pipe in order to form a circulating flow passage 34. Accordingly, neither assembling work of a non-return valve and a vacuum breaking valve in a water supply pipe line nor assembling work of a pump in a return pipe during the installation of a hot water supplier are necessary.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明はガス瞬間式給湯機、特に制御部の演算手段が必
要熱負荷を演算してバーナーの燃焼を自動的に制御する
形式のガス瞬間式給湯機に関する。
Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a gas instantaneous water heater, particularly a gas instantaneous water heater of the type in which a calculation means of a control section calculates a necessary heat load and automatically controls combustion of a burner. Regarding water heaters.

(従来の技術) この種ガス瞬間式給湯機は給湯機の給湯管。(Conventional technology) This type of gas instantaneous water heater uses the hot water pipe of the water heater.

給水管に接続する給湯配管と給水配管を戻り管で連絡し
て循環流路を形成し、給湯器具からの給湯を行なわない
ときには、上記循環流路に水を循環流動させ、この循環
水を設定温度若しくは所定の安全温石に保温維持してお
き、給湯器具を使用するときは即座に上記調度に保温さ
れた湯を吐出させることが可能である。
The hot water supply pipe connected to the water supply pipe and the water supply pipe are connected by a return pipe to form a circulation flow path, and when hot water is not being supplied from the hot water supply equipment, water is circulated through the circulation flow path and this circulating water is set. It is possible to maintain the hot water at a certain temperature or a predetermined safe hot stone, and immediately discharge hot water kept at the temperature mentioned above when using the hot water supply equipment.

しかし乍ら給湯機をこのように使用した際に、断水等の
原因により給水配管上流に負圧が生じた場合、循環流路
中の水、即ち、一度無交換器を通過した水が給水配管上
流に逆流する恐れがある。また、循環水を加熱すること
により、体積膨張が生じ圧力が上昇し、その圧力が給水
配管(本管側)に影響を及ぼす恐れがある。
However, when the water heater is used in this way, if negative pressure occurs upstream of the water supply piping due to a water outage, etc., the water in the circulation flow path, that is, the water that has passed through the non-exchanger, will be transferred to the water supply piping. There is a risk that it will flow back upstream. Furthermore, heating the circulating water causes volumetric expansion and increases pressure, which may affect the water supply piping (main pipe side).

そこで、給湯機を上記のように使用しようとすれば、給
水配管に逆止弁や真空破壊弁を組み込む必要が生じ、こ
れらの弁の手配や、これらの弁を循環流路の配管に組み
込むための施工時における頻雑な配管作業等、施工者に
とって面倒な仕事が増える。
Therefore, if you try to use the water heater as described above, it will be necessary to incorporate a check valve or a vacuum breaker valve into the water supply piping, and you will have to arrange for these valves and incorporate them into the circulation flow path piping. This increases the troublesome work for the constructor, such as frequent piping work during construction.

(解決しようとする問題点) 本発明が解決しようとする問題点は、配管作業を面倒に
することなく保温用の循環流路構成を可能にすることで
ある。
(Problem to be Solved) The problem to be solved by the present invention is to enable a circulation flow path configuration for heat retention without complicating piping work.

(問題点を解決するだめの手段) 上記問題点を解決するために本発明が講する技術的手段
は、制御部の演算手段により演算される必要熱負荷に基
づいてバーナーの燃焼を制御するガス瞬間式給湯機にお
いて、給湯機の給水管路の中途部にポンプを備えた戻り
管連絡管を接続すると共に上記給水管路の戻り管連絡管
接続部より上流側には逆止弁及び真空破壊弁を装備する
ことである。
(Means for Solving the Problems) The technical means taken by the present invention to solve the above problems is that the combustion of the burner is controlled based on the required heat load calculated by the calculation means of the control section. In an instantaneous hot water heater, a return pipe connecting pipe equipped with a pump is connected to the middle part of the water supply pipe of the water heater, and a check valve and a vacuum breaker are installed upstream of the return pipe connecting pipe connection part of the water supply pipe. It is to be equipped with a valve.

(作用) 而して、本発明の上記手段によれば、給!151111
を設置し、給湯機の給水管、給湯管に建物の給水、給湯
配管を接続すると共に、給湯配管より分岐させた戻り管
を戻り管連絡管に接続するだけで、給水配管上流側への
逆流の恐れのない保温用循環流路が構成される。
(Operation) According to the above means of the present invention, supply! 151111
Simply install the water heater, connect the building's water supply and hot water pipes to the water supply pipes, and connect the return pipe branched from the hot water pipe to the return pipe connection pipe to prevent backflow to the upstream side of the water supply pipe. A heat-retaining circulation flow path is constructed that is free from the risk of

(実施例) 以下、本発明の一実施例を図に基づいて説明する。(Example) Hereinafter, one embodiment of the present invention will be described based on the drawings.

図中(Δ)は給湯機で、この実施例の場合給湯機本体(
a)、この給湯機本体(a)の下部に着脱可能に連結さ
れたリターンユニット(b)から成っており、夫々本体
ケーシング(7)、リターンユニットケーシング(8)
内に機能部を収納している。
In the figure (Δ) is the water heater; in this example, the water heater itself (
a), a return unit (b) detachably connected to the lower part of the water heater main body (a), which includes a main body casing (7) and a return unit casing (8), respectively.
Functional parts are housed inside.

給I11本体(a)は、1つの熱交換器(9)に対して
2つのバーナー(10)(11)を備え、ガス管(20
)を介して供給されるガスを上記バーナー(10)(1
1)の双方または一方で燃焼させることにより、給水管
(2)を介して供給される水を熱交換器(9)で加熱し
て給湯管(12)に流すもので、上記バーナー(10)
(11)の燃焼を必要熱負荷に応じて制御部(1)によ
り制m+するようになっている。
The supply I11 main body (a) is equipped with two burners (10) (11) for one heat exchanger (9), and has a gas pipe (20
) to the burner (10) (1
By burning both or one of 1), the water supplied through the water supply pipe (2) is heated in the heat exchanger (9) and flows into the hot water supply pipe (12), and the burner (10)
The combustion of (11) is controlled by the control section (1) according to the required heat load.

即ち、給水管(2)には、水門センサー(13)と、入
水温センサー(14)を、また給湯管(12)には出渇
渇センザー(15)を夫々設け、給水管(2)を介して
供給される水の楢と温度、及び熱交換器(9)を出て給
湯管(12)に流れる潮の温度を検出して、それらのデ
ータを制御部(1)に送り、制御部(1)はこれらのデ
ータ及び給湯機(A)とは別体に設けられ、制御部(1
)と電気的に連絡されるコントローラー(B)で設定さ
れた設定温度等に基づいて必要熱負荷を演算し、その値
に基づき使用バーナー(10)(11)と熱量制御方式
を選択し、夫々のバーナー(10)(11)の比例制御
弁(16)(17)電磁弁(18)(19)を制御する
That is, the water supply pipe (2) is provided with a water gate sensor (13) and an inlet water temperature sensor (14), and the hot water supply pipe (12) is provided with an outlet/drainage sensor (15). The temperature of the water supplied through the heat exchanger (9) and the temperature of the water flowing into the hot water pipe (12) from the heat exchanger (9) are detected, and these data are sent to the control unit (1). (1) is provided separately from these data and the water heater (A), and is controlled by the control unit (1).
) The required heat load is calculated based on the set temperature etc. set in the controller (B) which is electrically connected to the The proportional control valves (16) (17) and solenoid valves (18) (19) of the burners (10) (11) are controlled.

上記バーナー(10)(11)の選択は(18)(19
)を開弁することにより行う。
The above burners (10) and (11) are selected from (18) and (19).
) by opening the valve.

また熱量制御方式としては、比例制御弁(16)(17
)の開度を可変して供給ガス量を変化させることにより
熱量を変える方式、比例制御弁(16)(17)の開度
を一定に保ち、電I蚤弁(18)(19)の開閉を繰り
返えし、開閉周期の長さ及び開弁時間と閉弁時間の比を
変化させることにより熱量を変える方式のいずれかが選
択される。
In addition, as a heat amount control method, proportional control valves (16) (17
), the amount of heat is changed by varying the amount of gas supplied by varying the opening of the proportional control valves (16) and (17), while keeping the opening of the proportional control valves (16) and (17) constant, and opening and closing of the electric I flea valves (18) and (19). One of the methods is selected in which the amount of heat is changed by repeating the above steps and changing the length of the opening/closing cycle and the ratio of the valve opening time to the valve closing time.

一方、リターンユニット(b)は、給湯機本体(a>の
給水管(2)、給湯管(12)、ガス管(20)に夫々
接続される給水管(2’)、給湯管(12’)、ガス管
(20’ )を有し、これら給水管(2’)、給湯管(
12’)、ガス管(20’ )は夫々リターンユニット
ケーシング(8)の底部より端部を突出し、これら突出
した端部には建物の給水配管(21)、給湯配管(22
)、ガス配管(24)を接続するための接続口(25)
(26) (27)を設ける。
On the other hand, the return unit (b) includes a water supply pipe (2') and a hot water supply pipe (12') connected to the water supply pipe (2), hot water supply pipe (12), and gas pipe (20) of the main body of the water heater (a), respectively. ), a gas pipe (20'), and these water supply pipes (2'), hot water supply pipes (
12') and gas pipes (20') each have their ends protruding from the bottom of the return unit casing (8), and these protruding ends are connected to the building's water supply piping (21) and hot water supply piping (22).
), connection port (25) for connecting gas pipe (24)
(26) Provide (27).

上記給水管(2′)には、その中途部に戻り管連絡管(
4)を接続すると共にこの戻り管連#!4管(4)の接
続部より上流側に逆止弁(5)。
The above water supply pipe (2') has a return pipe connecting pipe (
4) At the same time as connecting this return pipe #! A check valve (5) is installed upstream from the connection of the 4 pipes (4).

真空破壊弁(6)を一体内に内蔵した減圧弁(28)を
取りつける。
Attach a pressure reducing valve (28) with a built-in vacuum breaker valve (6).

また、給水管(2′)の接続口(25)には逆止弁(2
9)を一体に設ける。
In addition, a check valve (2) is provided at the connection port (25) of the water supply pipe (2').
9) is provided integrally.

一方、戻り管連絡管(4)は端部をリターンユニットケ
ーシング(8)の底部より突出せしめ、法部に戻り管(
30)を接続するための接続0(31)を設置Jる。
On the other hand, the end of the return pipe communication pipe (4) is made to protrude from the bottom of the return unit casing (8), and the return pipe (
Install connection 0 (31) to connect 30).

また、戻り管連絡管(4)は中途部にポンプ(3)を装
備すると共に、ポンプ(3)より上流側には水流スイッ
チ(32)と水抜栓付の逆止弁(33)を装備する。
In addition, the return pipe connecting pipe (4) is equipped with a pump (3) in the middle, and on the upstream side of the pump (3) is equipped with a water flow switch (32) and a check valve (33) with a drain plug. .

而して、斯かるガス瞬間式給湯機は、給水管(2′)端
部の接続口(25)、給湯管(12’ )端部の接続口
(26)に夫々建物の給水配管(21)。
Therefore, such a gas instantaneous water heater connects the water supply pipe (21) of the building to the connection port (25) at the end of the water supply pipe (2') and the connection port (26) at the end of the hot water pipe (12'), respectively. ).

給湯配管(22)を接続すると共に戻り管連絡管(4)
の接続口(31)に給湯配管(22)から分岐せしめた
戻り管(30)を接続すれば、循環流路(34)が形成
される。
Connect the hot water supply pipe (22) and return pipe (4)
A circulation flow path (34) is formed by connecting a return pipe (30) branched from the hot water supply pipe (22) to the connection port (31).

従って、給湯配管(22)に設けられている給湯器具(
35)を使用しないときに、ポンプ(3)を駆動させれ
ば、循環流路(34)内を水が循環流動し、この循環水
は、給湯時と同様制御部(1)により制御されるバーナ
ー(10)(11)により設定温度若しくは別途定めら
れた所定の濃度に採湯維持される。
Therefore, the hot water supply equipment (
If the pump (3) is driven when the pump (35) is not in use, water circulates in the circulation channel (34), and this circulating water is controlled by the control unit (1) in the same way as when hot water is supplied. The hot water is maintained at a set temperature or a predetermined concentration determined separately by the burners (10) and (11).

また、給湯配管(22)から戻り管(30)を分岐させ
ることをせず、戻り管連絡管(4)の接続口(31)を
盲蓋で塞げば、保温運転機能を備えない一般的な給湯機
として使用できる。
In addition, if the return pipe (30) is not branched from the hot water supply pipe (22) and the connection port (31) of the return pipe connection pipe (4) is covered with a blind cover, it is possible to Can be used as a water heater.

尚、上記した実施例では、給湯機本体(a)にリターン
ユニット(b)を一体内に設け、該リターンユニット(
b)の給水管(2′)に戻り管連絡管(4)を接続した
り、逆止弁(5)や真空破壊弁(6)を装備したが、リ
ターンユニットを設けず、給湯機本体(a)内の給水管
(2)に直接戻り管連絡管(4)を接続し、逆止弁(5
)と真空破壊弁(6)を装備しても良い。
In the above-mentioned embodiment, the return unit (b) is provided integrally with the water heater body (a), and the return unit (
Although the return pipe connecting pipe (4) was connected to the water supply pipe (2') in b), and a check valve (5) and a vacuum breaker valve (6) were installed, a return unit was not installed and the water heater body ( Connect the return pipe connection pipe (4) directly to the water supply pipe (2) in a), and close the check valve (5).
) and a vacuum breaker valve (6).

(効 果) 本発明は上記のように給湯機の給水管路の中途部にポン
プを備えた戻り管連絡管を接続すると共に上記給水管路
の戻り管連絡管接続部より上流側には逆止弁及び真空破
壊弁を装備したので、給水管、給湯管、戻り管連絡管に
、夫々建物の給水配管、給湯配管、戻り管を接続するだ
番ノで使用することができ、施工時に給水配管に逆止弁
や、真空破壊弁を組み込んだり戻り管にポンプを組み込
んだりする作業を行う必要がない。
(Effects) As described above, the present invention connects a return pipe connecting pipe equipped with a pump to the middle part of the water supply pipe of a water heater, and also connects a return pipe connecting pipe equipped with a pump to the middle part of the water supply pipe of the water heater, and also connects a return pipe connecting part of the water supply pipe to the upstream side of the return pipe connecting part of the water supply pipe. Equipped with a stop valve and a vacuum break valve, it can be used to connect the building's water supply pipe, hot water supply pipe, and return pipe to the water supply pipe, hot water supply pipe, and return pipe, respectively, and can be used to connect the water supply pipe, hot water supply pipe, and return pipe respectively to the water supply pipe, hot water supply pipe, and return pipe. There is no need to install a check valve or vacuum break valve in the piping, or to install a pump in the return pipe.

従って、施工が容易である。Therefore, construction is easy.

また、施工業者が逆止弁、真空破壊弁、ポンプ等を用意
しなければならないような面倒もない。
Furthermore, there is no need for the contractor to prepare check valves, vacuum breaker valves, pumps, etc.

【図面の簡単な説明】[Brief explanation of drawings]

図面は本発明の一実施例を示すガス瞬間式給1i機の模
式図である。 (Δ):給湯機    (1)二制御部(2)(2”)
:給水管    (3):ポンプ(4):戻り管連絡管
 (5):逆止弁(6):真空破壊弁 特 許 出 願 人    東陶機器株式会社−9−’
−−
The drawing is a schematic diagram of an instantaneous gas feeder 1i showing an embodiment of the present invention. (Δ): Water heater (1) Two control parts (2) (2”)
: Water supply pipe (3) : Pump (4) : Return pipe connecting pipe (5) : Check valve (6) : Vacuum breaker valve Patent Applicant Totokiki Co., Ltd.-9-'
---

Claims (1)

【特許請求の範囲】[Claims] 制御部の演算手段により演算される必要熱負荷に基づい
てバーナーの燃焼を制御するガス瞬間式給湯機において
、給湯機の給水管の中途部にポンプを備えた戻り管連絡
管を接続すると共に上記給水管の戻り管連絡管接続部よ
り上流側には逆止弁及び真空破壊弁を装備してなるガス
瞬間式給湯機。
In a gas instantaneous water heater that controls the combustion of the burner based on the required heat load calculated by the calculation means of the control unit, a return pipe connecting pipe equipped with a pump is connected to the midway part of the water supply pipe of the water heater, and the above-mentioned A gas instantaneous water heater equipped with a check valve and a vacuum breaker valve on the upstream side of the water supply pipe's return pipe connection pipe connection.
JP9431186A 1986-04-22 1986-04-22 Instantaneous gas-fired hot water supplier Granted JPS62248957A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9431186A JPS62248957A (en) 1986-04-22 1986-04-22 Instantaneous gas-fired hot water supplier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9431186A JPS62248957A (en) 1986-04-22 1986-04-22 Instantaneous gas-fired hot water supplier

Publications (2)

Publication Number Publication Date
JPS62248957A true JPS62248957A (en) 1987-10-29
JPH0345293B2 JPH0345293B2 (en) 1991-07-10

Family

ID=14106731

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9431186A Granted JPS62248957A (en) 1986-04-22 1986-04-22 Instantaneous gas-fired hot water supplier

Country Status (1)

Country Link
JP (1) JPS62248957A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0357346U (en) * 1989-10-04 1991-06-03
JP2009516819A (en) * 2005-11-22 2009-04-23 キョントン ナビエン カンパニー リミテッド Boiler hot water supply system with double pipe heat exchanger

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6169754U (en) * 1984-10-09 1986-05-13
JPS6174027U (en) * 1984-10-22 1986-05-19

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6169754U (en) * 1984-10-09 1986-05-13
JPS6174027U (en) * 1984-10-22 1986-05-19

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0357346U (en) * 1989-10-04 1991-06-03
JP2009516819A (en) * 2005-11-22 2009-04-23 キョントン ナビエン カンパニー リミテッド Boiler hot water supply system with double pipe heat exchanger

Also Published As

Publication number Publication date
JPH0345293B2 (en) 1991-07-10

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