JPH0141899B2 - - Google Patents
Info
- Publication number
- JPH0141899B2 JPH0141899B2 JP58018383A JP1838383A JPH0141899B2 JP H0141899 B2 JPH0141899 B2 JP H0141899B2 JP 58018383 A JP58018383 A JP 58018383A JP 1838383 A JP1838383 A JP 1838383A JP H0141899 B2 JPH0141899 B2 JP H0141899B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- heat exchanger
- housing
- circulation pump
- bathtub
- 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.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 46
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000003303 reheating Methods 0.000 claims description 3
- 230000007257 malfunction Effects 0.000 description 4
- 239000008399 tap water Substances 0.000 description 4
- 235000020679 tap water Nutrition 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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
- 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
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/12—Preventing or detecting fluid leakage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/246—Water level
- F24H15/248—Water level of water storage tanks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/355—Control of heat-generating means in heaters
- F24H15/36—Control of heat-generating means in heaters of burners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/395—Information to users, e.g. alarms
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Fluid Heaters (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は罐体の温水の一部を、熱交換器を含む
温水の循環回路に循環ポンプで強制循環させ、熱
交換器で溶槽内等の水を間接的に加熱するように
した追焚き機能付き給湯機に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention forcibly circulates a portion of the hot water in the casing through a hot water circulation circuit including a heat exchanger using a circulation pump, and uses the heat exchanger to circulate a portion of hot water in a hot water tank, etc. This invention relates to a water heater with a reheating function that heats water indirectly.
従来例の構成とその問題点
従来は第３図のごとく間接加熱用の循環回路Ａ
を罐体Ｂに連結し、循環回路Ａにもうけた熱交換
器Ｃと循環ポンプＤを接続し、そして循環ポンプ
Ｄの一次側に真空破壊弁Ｅを設ける構成としてい
た。しかしながら循環ポンプＤの一次側に真空破
壊弁Ｅを設けると、循環ポンプＤの吸引により、
真空破壊弁Ｅにかかる圧力の低下や負圧になる現
象が起こり、真空破壊弁Ｅが誤動作を起こし、循
環回路Ａに空気を吸収するという問題が発生して
いた。Configuration of conventional example and its problems Conventionally, as shown in Figure 3, circulation circuit A for indirect heating was used.
was connected to the housing B, a heat exchanger C provided in the circulation circuit A and a circulation pump D were connected, and a vacuum breaker valve E was provided on the primary side of the circulation pump D. However, if a vacuum break valve E is provided on the primary side of the circulation pump D, the suction of the circulation pump D will cause
A phenomenon in which the pressure applied to the vacuum breaker valve E decreases or becomes negative occurs, causing the vacuum breaker valve E to malfunction, causing a problem in which air is absorbed into the circulation circuit A.
発明の目的
本発明は上記の問題に鑑み、真空破壊弁の誤動
作を防止することを目的とするものである。OBJECT OF THE INVENTION In view of the above problems, the present invention aims to prevent malfunction of a vacuum breaker valve.
発明の構成
上記目的を達成するための本発明は、罐体の循
環回路に設けた熱交換器の一次側に、循環ポンプ
を接続し、二次側に真空破壊弁を設けるものであ
る。Structure of the Invention In order to achieve the above object, the present invention connects a circulation pump to the primary side of a heat exchanger provided in a circulation circuit of a housing, and provides a vacuum breaker valve on the secondary side.
本発明は上記構成とすることにより、循環ポン
プが動作した場合、真空破壊弁は、循環ポンプの
押込み圧力を受け、常に加圧状態となり、空気の
吸込の誤動作がおきない。 By having the above-mentioned structure of the present invention, when the circulation pump operates, the vacuum breaker valve receives the pushing pressure of the circulation pump and is always in a pressurized state, thereby preventing malfunction of air suction.
又熱交換器に穴明きを生じた場合、通常状態で
は水道水圧及び循環ポンプの加圧により、熱交換
器は加圧状態にあり、罐体内の温水は熱交換器の
穴より常に漏出状態となつて例えば浴槽内に漏出
し、浴槽水が熱交換器や、罐体内に逆流すること
はない。 In addition, if a hole occurs in the heat exchanger, under normal conditions, the heat exchanger is under pressure due to tap water pressure and pressurization of the circulation pump, and hot water inside the housing will always leak from the hole in the heat exchanger. Therefore, for example, water in the bathtub will not leak into the bathtub and flow back into the heat exchanger or the housing.
又熱交換器に穴明きが生じた状態のとき、水道
管が断水等により罐体が負圧を生じた時は、真空
破壊弁より空気を吸入し、安全動作となる。 In addition, when there is a hole in the heat exchanger, when negative pressure is generated in the casing due to a water outage, etc., air is sucked in from the vacuum breaker valve, resulting in safe operation.
実施例の説明
第１図、第２図において１は罐体、２は給水口
であつて、浴槽９のオーバーフロー面ＫよりH1
だけ上部に位置している。３Ａは循環回路３の出
口であり、４は戻り口、５は戻り口に設けた真空
破壊弁である。循環回路３には循環ポンプ６を熱
交換器７の一次側に装備し、循環ポンプ６を運転
することにより熱交換器７を加熱し熱交換ケース
８を介して浴槽９の水を加温する。又罐体１の上
部に水位検知器１０を設け、熱交換器７及び罐体
１からの水洩れを検知すると警報ブザーやランプ
等の警報器Ｍで表示するとともに、バーナＢの運
転を止める。DESCRIPTION OF EMBODIMENTS In FIGS. 1 and 2, 1 is a housing, 2 is a water supply port, and H1 is from the overflow surface K of the bathtub 9.
Only located at the top. 3A is an outlet of the circulation circuit 3, 4 is a return port, and 5 is a vacuum breaker valve provided at the return port. The circulation circuit 3 is equipped with a circulation pump 6 on the primary side of the heat exchanger 7, and by operating the circulation pump 6, the heat exchanger 7 is heated and the water in the bathtub 9 is heated via the heat exchange case 8. . Further, a water level detector 10 is provided on the upper part of the housing 1, and when water leakage from the heat exchanger 7 and the housing 1 is detected, an alarm M such as an alarm buzzer or a lamp is displayed, and the operation of the burner B is stopped.
上記構成において動作を説明する。 The operation in the above configuration will be explained.
常時動作時の動作としては、罐体１の循環回路
の出口３Ａより循環ポンプ６で吸引された温水は
熱交換器７を介し、循環回路３の戻り口４に入
る。戻り口４（二次側）には、真空破壊弁５が設
けられ、この動作の時点では真空破壊弁５は水道
水圧及び循環ポンプ６の加圧で常に加圧状態とな
り、真空破壊弁５が働くことはない。 During normal operation, hot water sucked by the circulation pump 6 from the outlet 3A of the circulation circuit of the housing 1 enters the return port 4 of the circulation circuit 3 via the heat exchanger 7. A vacuum breaker valve 5 is provided at the return port 4 (secondary side), and at the time of this operation, the vacuum breaker valve 5 is always in a pressurized state due to tap water pressure and pressurization of the circulation pump 6, and the vacuum breaker valve 5 is in a pressurized state. I never work.
又熱交換器７の穴明き時の動作として、第１に
は水道水圧により罐体１及び熱交換器７は常に加
圧状態にあり、熱交換器７より罐体１の水は漏出
し、浴槽９の水が熱交換器７の穴明き部より逆流
することはない。 In addition, as for the operation when the heat exchanger 7 is punctured, firstly, the housing 1 and the heat exchanger 7 are always in a pressurized state due to the tap water pressure, and the water in the housing 1 leaks from the heat exchanger 7. , water in the bathtub 9 will not flow back through the perforated portion of the heat exchanger 7.
第２に運転中は循環ポンプ６が熱交換器７の一
次側にあるため循環ポンプ６により熱交換器７を
加圧し熱交換器７の穴明き部より、罐体１の水は
漏出する。 Second, during operation, the circulation pump 6 is on the primary side of the heat exchanger 7, so the circulation pump 6 pressurizes the heat exchanger 7, and the water in the housing 1 leaks from the perforated part of the heat exchanger 7. .
第３に水道給水管側が断水等で罐体１に負圧が
かかつた場合は循環回路３の戻り口４に設けた真
空破壊弁５が開き大気を吸入する。吸入した空気
は給水管２ａに連通し、瞬時に罐体１の負圧に対
し罐体１の内圧を大気圧にバランスを取ることが
できる。この時、罐体１と浴槽９は水頭差H2が
あり、罐体１の水位が高いため徐々に罐体１内の
水頭圧より熱交換器７の穴明き部より漏水してい
き、浴槽９の水が熱交換器７に浸入することはな
い。この熱交換器７からの漏水は浴槽９と罐体１
が同水位となる浴槽９のオーバーフロー面まで続
く。 Thirdly, if negative pressure is applied to the housing 1 due to a water outage or the like on the water supply pipe side, the vacuum break valve 5 provided at the return port 4 of the circulation circuit 3 opens and sucks in the atmosphere. The sucked air is communicated with the water supply pipe 2a, and the internal pressure of the housing 1 can be instantly balanced against the negative pressure of the housing 1 to atmospheric pressure. At this time, there is a water head difference H2 between the casing 1 and the bathtub 9, and since the water level in the casing 1 is high, water gradually leaks from the perforated part of the heat exchanger 7 due to the water head pressure inside the casing 1. 9 water will not enter the heat exchanger 7. This water leakage from the heat exchanger 7 is caused by the bathtub 9 and the casing 1.
continues to the overflow surface of the bathtub 9, where the water level is the same.
罐体１と浴槽９の水位が浴槽９のオーバーフロ
ー面Ｋで同一となつた時に、熱交換器７の穴によ
り罐体１と浴槽９の水は混入できる状態にあり罐
体１の水が汚染される可能性があるが、この時給
水口２はオーバーフロー面ＫよりH1だけ上の位
置にあるため汚水が給水管２ａに逆流することは
ない。罐体１の水位が低下する過程で水位検知器
１０が水位を検知し警報ブザー、ランプの警報器
Ｍで警報を発すると共に運転を止め、熱交換器７
の交換修理をしないと自動的に再運転しない。 When the water levels in the housing 1 and the bathtub 9 become the same at the overflow surface K of the bathtub 9, the water in the housing 1 and the bathtub 9 can mix due to the hole in the heat exchanger 7, and the water in the housing 1 becomes contaminated. However, since the water supply port 2 is located at a position H1 above the overflow surface K at this time, the dirty water will not flow back into the water supply pipe 2a. While the water level in the housing 1 is decreasing, the water level detector 10 detects the water level and issues an alarm with the alarm buzzer and lamp alarm M, and stops the operation of the heat exchanger 7.
It will not restart automatically unless it is replaced or repaired.
したがつて熱交換器７の交換修理のため排水栓
１１より罐体内１の残つた汚染した水は排水され
るため汚れた水を再使用することも防止できる。
なお、１３は浴槽接続口、１４は安全弁である。 Therefore, when the heat exchanger 7 is replaced or repaired, the contaminated water remaining in the housing 1 is drained from the drain plug 11, thereby preventing the contaminated water from being reused.
In addition, 13 is a bathtub connection port, and 14 is a safety valve.
発明の効果
以上のように本発明は間接加熱用の循環回路を
罐体に連結するとともに、循環回路に設けた熱交
換器の一次側に循環ポンプを設け、二次側に真空
破壊弁を設ける構成をしているため、通常状態で
循環ポンプが動作した際の空気の吸入による誤動
作が防止でき、しかも熱交換器の穴明き故障時は
通常は常に熱交換器より漏水し、又更に水道管側
の断水等による負圧状態でも真空破壊弁の動作に
より熱交換器の穴から浴槽の汚水等を水道管内に
逆流させないので、水道水が汚染されるという問
題もおきない。Effects of the Invention As described above, the present invention connects a circulation circuit for indirect heating to a housing, provides a circulation pump on the primary side of a heat exchanger provided in the circulation circuit, and provides a vacuum breaker valve on the secondary side. This structure prevents malfunctions due to air intake when the circulation pump operates under normal conditions, and in the event of a hole in the heat exchanger, water usually leaks from the heat exchanger, and even the water supply is interrupted. Even in a negative pressure state due to a water outage on the pipe side, the operation of the vacuum breaker valve prevents waste water from the bathtub from flowing back into the water pipe through the hole in the heat exchanger, so there is no problem of contamination of the tap water.
第１図は本発明の一実施例の追焚き機能付き給
湯機の斜視図、第２図は同システム図、第３図は
従来のシステム図である。
１……罐体、２……給水口、３……循環回路出
口、４……循環回路戻り口、５……真空破壊弁、
６……循環ポンプ、７……熱交換器、８……熱交
換ケース、９……浴槽、１０……水位検知器、１
１……排水栓。
FIG. 1 is a perspective view of a water heater with a reheating function according to an embodiment of the present invention, FIG. 2 is a system diagram of the same, and FIG. 3 is a conventional system diagram. 1... Housing, 2... Water supply inlet, 3... Circulating circuit outlet, 4... Circulating circuit return port, 5... Vacuum breaker valve,
6... Circulation pump, 7... Heat exchanger, 8... Heat exchange case, 9... Bathtub, 10... Water level detector, 1
1... Drain plug.
Claims (1)
罐体に接続するとともに、この循環回路の上記熱
交換器の一次側に循環ポンプを設け、二次側に真
空破壊弁を設けた追焚き機能付き給湯機。1 A circulation circuit for indirect heating with a heat exchanger,
A water heater with a reheating function, which is connected to a housing, has a circulation pump on the primary side of the heat exchanger of this circulation circuit, and has a vacuum breaker valve on the secondary side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58018383A JPS59145446A (en) | 1983-02-07 | 1983-02-07 | Hot water feed device having additional heating capability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58018383A JPS59145446A (en) | 1983-02-07 | 1983-02-07 | Hot water feed device having additional heating capability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59145446A JPS59145446A (en) | 1984-08-20 |
| JPH0141899B2 true JPH0141899B2 (en) | 1989-09-08 |
Family
ID=11970186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58018383A Granted JPS59145446A (en) | 1983-02-07 | 1983-02-07 | Hot water feed device having additional heating capability |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59145446A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61151154U (en) * | 1985-03-11 | 1986-09-18 | ||
| JPS637738U (en) * | 1986-07-01 | 1988-01-19 | ||
| JPH0739421Y2 (en) * | 1991-04-18 | 1995-09-13 | 株式会社釣研 | Fishing ground |
| CN110081587A (en) * | 2019-06-03 | 2019-08-02 | 珠海格力电器股份有限公司 | Wind pressure detection device and gas heating water heater |
-
1983
- 1983-02-07 JP JP58018383A patent/JPS59145446A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59145446A (en) | 1984-08-20 |
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