JPS61175440A - Storage type hot-water supplier - Google Patents
Storage type hot-water supplierInfo
- Publication number
- JPS61175440A JPS61175440A JP60014856A JP1485685A JPS61175440A JP S61175440 A JPS61175440 A JP S61175440A JP 60014856 A JP60014856 A JP 60014856A JP 1485685 A JP1485685 A JP 1485685A JP S61175440 A JPS61175440 A JP S61175440A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- storage tank
- hot water
- water storage
- tank
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract 3
- 238000001514 detection method Methods 0.000 claims description 8
- 230000002159 abnormal effect Effects 0.000 abstract description 15
- 238000007710 freezing Methods 0.000 abstract description 5
- 230000008014 freezing Effects 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 4
- 230000000630 rising effect Effects 0.000 abstract 3
- 230000007257 malfunction Effects 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 238000004210 cathodic protection Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002265 prevention Effects 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
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2021—Storage 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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/242—Pressure
-
- 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
- F24H15/305—Control of valves
- F24H15/31—Control of valves of valves having only one inlet port and one outlet port, e.g. flow rate regulating valves
-
- 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
- F24H15/37—Control of heat-generating means in heaters of electric 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
- 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)
- Fluid Mechanics (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、貯湯式給湯装置の異常圧力上昇防止に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to prevention of abnormal pressure rise in a hot water storage type water heater.
従来の技術
近年、貯湯式給湯装置の異常圧力上昇防止のための安全
装置には、貯湯式給湯装置本体ではなく水配管中に安全
弁や減圧弁を組み込む方式が採られている。BACKGROUND OF THE INVENTION In recent years, safety devices for preventing abnormal pressure rises in hot water storage type water heaters have adopted a system in which a safety valve or a pressure reducing valve is incorporated into the water piping rather than in the body of the hot water storage type water heater.
以下図面を参照しながら、上述した従来の貯湯式給湯装
置の一例について説明する。An example of the conventional hot water storage type water heater mentioned above will be described below with reference to the drawings.
第２図は従来の貯湯式給湯装置の配管を含む全システム
を示すものである。第２図において２は加熱装置、１は
貯湯タンク、６′は電装部で運転制御や電気防食等の動
作をする。３は安全弁で、貯湯タンク１内の圧力が上昇
すると弁が開き圧力を低下させるものである。又、減圧
弁４は給水側から市水圧が直接貯湯タンク１にかからな
い様に給水圧を低下させ、タンク破壊を防止するもので
ある。一般的に安全弁３、減圧弁４は貯湯式給湯装置本
体でなく、設置時に配管中に組み込まれる構成となって
いる。FIG. 2 shows the entire system including piping of a conventional hot water storage type water heater. In FIG. 2, 2 is a heating device, 1 is a hot water storage tank, and 6' is an electrical unit that performs operations such as operation control and cathodic protection. 3 is a safety valve, which opens when the pressure inside the hot water storage tank 1 rises to reduce the pressure. Further, the pressure reducing valve 4 lowers the water supply pressure so that the city water pressure does not directly apply to the hot water storage tank 1 from the water supply side, and prevents the tank from breaking. Generally, the safety valve 3 and the pressure reducing valve 4 are not included in the main body of the hot water storage type hot water supply apparatus, but are configured to be incorporated into piping at the time of installation.
以上のように構成された貯湯式給湯装置について、以下
その動作について説明する。The operation of the hot water storage type water heater configured as described above will be described below.
まず減圧弁４によって減圧され貯湯タンク１内の圧力は
常に一定圧力に保たれている。又、加熱装置２によって
加熱されている時は、貯湯タンク１中の水の熱膨張と蒸
気圧によって貯湯タンク１内の圧力が徐々に上昇してく
る。この場合、給湯配管中に設けられた安全弁３が開閉
し貯湯タンク１内の圧力を一定圧力以下に保つようにな
っている。従って、万一貯湯タンク１内で加熱過剰によ
って沸騰現象が発生した場合でも安全弁３において圧力
が逃がされるため貯湯タンク１の破壊を生ずる事はない
。First, the pressure inside the hot water tank 1 is reduced by the pressure reducing valve 4, and the pressure inside the hot water storage tank 1 is always maintained at a constant pressure. Further, while being heated by the heating device 2, the pressure inside the hot water storage tank 1 gradually increases due to the thermal expansion and vapor pressure of the water in the hot water storage tank 1. In this case, a safety valve 3 provided in the hot water supply pipe opens and closes to keep the pressure inside the hot water storage tank 1 below a certain pressure. Therefore, even if a boiling phenomenon occurs in the hot water storage tank 1 due to excessive heating, the pressure will be released through the safety valve 3, so that the hot water storage tank 1 will not be destroyed.
発明が解決しようとする問題点
しかしながら上記のような構成では、安全弁３が水配管
中に組み込む方式で安全性が完全に設置者任せになって
いるだけでなく、常に水が配管内にあるため極寒時の凍
結や安全弁づまりにより安全弁３自体が破損したり、安
全弁３の動作不良が生じる。これにより加熱中に熱膨張
した水や蒸気が貯湯タンク１内に蓄積され、貯湯タンク
１内の圧力が上昇し貯湯タンク１の破壊圧力に達すると
遂には破壊してしまうという問題点を有していた。Problems to be Solved by the Invention However, with the above configuration, the safety valve 3 is built into the water piping, so safety is completely left to the installer, and also because water is always inside the piping. Freezing or clogging of the safety valve in extremely cold weather may damage the safety valve 3 itself or cause malfunction of the safety valve 3. As a result, water and steam that thermally expands during heating accumulates in the hot water storage tank 1, which causes the pressure inside the hot water storage tank 1 to rise, and when it reaches the breaking pressure of the hot water storage tank 1, it will eventually break. was.
本発明は上記問題点に鑑み、安全弁の動作不良が生じた
場合でも、貯湯タンク内の異常圧力を破壊以前に検知し
、貯湯タンク内の異常圧力上昇による破壊を防止するこ
とにより、より安全性の高。In view of the above-mentioned problems, the present invention improves safety by detecting abnormal pressure in the hot water storage tank before it is destroyed even if the safety valve malfunctions, and preventing destruction due to abnormal pressure rise in the hot water storage tank. High.
い貯湯式給湯装置を提供するものである。The present invention provides a hot water storage type hot water supply device.
問題点を解決するための手段
上記問題点を解決するために本発明の貯湯式給湯装置は
、貯湯タンク下部壁面に圧力センサーを設け、この圧力
センサーが設定圧力を検知すると、加熱運転を停止する
と同時に、貯湯タンク上部と連結した弁装置を開放し、
貯湯タンク内の圧力を低下させる構成としたものである
。Means for Solving the Problems In order to solve the above problems, the hot water storage type water heater of the present invention is provided with a pressure sensor on the lower wall of the hot water storage tank, and when the pressure sensor detects a set pressure, the heating operation is stopped. At the same time, open the valve device connected to the top of the hot water storage tank,
It is designed to reduce the pressure inside the hot water storage tank.
作 用
本発明は上記の構成によって、安全弁が正常動作しなか
った場合でも、貯湯タンクが破壊に至る以前に圧力セン
サーによって異常圧力を検知し、加熱運転を停止すると
共に弁装置を開放状態にする事で貯湯タンク内圧力を低
下させ、貯湯タンクの破壊を防止することができる。With the above-described configuration, the present invention detects abnormal pressure with a pressure sensor before the hot water storage tank is destroyed even if the safety valve does not operate normally, and stops the heating operation and opens the valve device. This reduces the pressure inside the hot water storage tank and prevents the tank from breaking.
実施例
以下本発明の一実施例の貯湯式給湯装置につぃて、図面
を参照しながら説明する。EXAMPLE Hereinafter, a hot water storage type water heater according to an example of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例における貯湯式給湯装置を示
すものである。第１図において、貯湯タンク１内に減圧
弁４により減圧された水が給水され、加熱装置２によっ
て加熱された水が熱膨張し、貯湯タンク１内の圧力が上
昇し、設定圧力以上になると安全弁３を開放することに
より膨張水を逃がし、貯湯タンク１内の異常圧力上昇を
防止する。FIG. 1 shows a hot water storage type water heater according to an embodiment of the present invention. In FIG. 1, water whose pressure has been reduced by a pressure reducing valve 4 is supplied into a hot water storage tank 1, the water heated by a heating device 2 thermally expands, and the pressure inside the hot water storage tank 1 rises until it exceeds the set pressure. By opening the safety valve 3, the expanded water is released and an abnormal pressure increase in the hot water storage tank 1 is prevented.
本実施例は、上記システムに併設して運転するものであ
り、第１図において、貯湯タンク１下部に設けた圧力セ
ンサー６により設定圧力以上を検知すると、制御装置６
により加熱装置２の運転を停止すると共に、貯湯タンク
１上部に設けられた弁装置７を開放し、異常圧力上昇の
原因となる蒸気や膨張水を逃がし、さらに警報装置８を
動作させ異常を知らせるものである。前記構成とするこ
とにより、安全弁３が凍結や配管詰まり等によって動作
不良を起こした場合でも、貯湯タンク１の上部に直接弁
装置７を設けているため、弁装置７の凍結の心配がなく
、しかも異常圧力の検知により強制的に弁装置７を開放
するため、異常圧力上昇を防止することができる。文、
圧力センサー５を貯湯タンク１内の状態が湯（高温）で
あろうが、水（低温）であろうが、常に温度が一定ある
いは、非常に温度変化の少ないような貯湯タンク下部に
設けることにより、圧力センサ−５自体の熱膨張による
誤検知を防止し、正確な圧力検知が可能となる。又、警
報装置８により異常を知らせ、メンテナンスの必要性を
も知らせることができる。よって、貯湯タンク１内の異
常圧力上昇に対する安全性と貯湯タンク１の信頼性が一
層向上する。This embodiment is operated in conjunction with the above system, and as shown in FIG.
At the same time as stopping the operation of the heating device 2, the valve device 7 provided at the top of the hot water storage tank 1 is opened to release steam and expanded water that causes an abnormal pressure rise, and the alarm device 8 is activated to notify of an abnormality. It is something. With the above configuration, even if the safety valve 3 malfunctions due to freezing or clogging of pipes, there is no need to worry about the valve device 7 freezing because the valve device 7 is directly provided at the top of the hot water storage tank 1. Furthermore, since the valve device 7 is forcibly opened upon detection of abnormal pressure, abnormal pressure rise can be prevented. Sentence,
By installing the pressure sensor 5 at the bottom of the hot water storage tank where the temperature is always constant or where the temperature changes are very small, regardless of whether the inside of the hot water storage tank 1 is hot water (high temperature) or water (low temperature). , erroneous detection due to thermal expansion of the pressure sensor 5 itself is prevented, and accurate pressure detection is possible. Further, the alarm device 8 can notify of an abnormality and also notify the necessity of maintenance. Therefore, the safety against abnormal pressure increases in the hot water storage tank 1 and the reliability of the hot water storage tank 1 are further improved.
発明の効果
以上のように本発明によれば次の効果を得ることができ
る。Effects of the Invention As described above, according to the present invention, the following effects can be obtained.
（１）寒冷時の凍結や配管の詰まりに関係なく、異常圧
力上昇時には圧力の開放が可能であり、貯湯タンクの破
壊を防止できる。(1) Regardless of freezing in cold weather or clogging of pipes, pressure can be released in the event of an abnormal pressure rise, and destruction of the hot water tank can be prevented.
？）加熱停止により圧力上昇を停止できる。? ) Pressure rise can be stopped by stopping heating.
（３）圧力センサーを貯湯タンク下部に設けることによ
り、圧力検知精度が向上する。(3) By providing the pressure sensor at the bottom of the hot water storage tank, pressure detection accuracy is improved.
に）警報装置を圧力センサーの検知圧力に連動させると
、メンテナンスの必要性を知らせることができる。(b) By linking an alarm device to the pressure detected by a pressure sensor, it is possible to notify the need for maintenance.
第１図は本発明の一実施例における貯湯式給湯装置のシ
ステム図、第２図は従来の貯湯式給湯装置のシステム図
である。
１・・・・・・貯湯タンク、２・・・・・・加熱装置、
３・・・・・・安全弁、４・・・・・・減圧弁、５・−
・・・・圧力センサー、６・・・・・・制御装置、７・
・・・・・弁装置、８・・・・・・警報装置。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名菓
１ 図
／−一一野渦グン７第２図FIG. 1 is a system diagram of a hot water storage type water heater according to an embodiment of the present invention, and FIG. 2 is a system diagram of a conventional hot water storage type water heater. 1...Hot water storage tank, 2...Heating device,
3... Safety valve, 4... Pressure reducing valve, 5...-
...Pressure sensor, 6...Control device, 7.
... Valve device, 8... Alarm device. Name of agent: Patent attorney Toshio Nakao and one other name
1 figure
/-Ichino Uzu Gun 7 Figure 2
Claims (2)
下部に設けた圧力検知センサーと、この圧力検知センサ
ーの検出信号を処理する制御装置と、この制御装置の処
理信号によって開閉するとともに、前記貯湯タンクに連
結した弁装置とを備えた貯湯式給湯装置。(1) A hot water storage tank having a heating device, a pressure detection sensor provided at the bottom of this hot water storage tank, a control device that processes a detection signal of this pressure detection sensor, and a hot water storage tank that opens and closes according to the processing signal of this control device. A hot water storage type water heater equipped with a valve device connected to a tank.
以上を検知すると警報装置を作動させる構成とした特許
請求の範囲第１項記載の貯湯式給湯装置。(2) The hot water storage type water heater according to claim 1, wherein the hot water storage type water heater is configured to activate an alarm device when a pressure detection sensor provided in the hot water storage tank detects a pressure above a certain level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60014856A JPS61175440A (en) | 1985-01-29 | 1985-01-29 | Storage type hot-water supplier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60014856A JPS61175440A (en) | 1985-01-29 | 1985-01-29 | Storage type hot-water supplier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61175440A true JPS61175440A (en) | 1986-08-07 |
Family
ID=11872670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60014856A Pending JPS61175440A (en) | 1985-01-29 | 1985-01-29 | Storage type hot-water supplier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61175440A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03140748A (en) * | 1989-10-25 | 1991-06-14 | Matsushita Electric Ind Co Ltd | Electric hot water supplying apparatus |
| JP2007292345A (en) * | 2006-04-21 | 2007-11-08 | Denso Corp | Hot water storage type water heater |
-
1985
- 1985-01-29 JP JP60014856A patent/JPS61175440A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03140748A (en) * | 1989-10-25 | 1991-06-14 | Matsushita Electric Ind Co Ltd | Electric hot water supplying apparatus |
| JP2007292345A (en) * | 2006-04-21 | 2007-11-08 | Denso Corp | Hot water storage type water heater |
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