JPH02287055A - Pressure sensor protective device in automatic bath device having water heater for domestic hot water supply - Google Patents
Pressure sensor protective device in automatic bath device having water heater for domestic hot water supplyInfo
- Publication number
- JPH02287055A JPH02287055A JP1104725A JP10472589A JPH02287055A JP H02287055 A JPH02287055 A JP H02287055A JP 1104725 A JP1104725 A JP 1104725A JP 10472589 A JP10472589 A JP 10472589A JP H02287055 A JPH02287055 A JP H02287055A
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- pressure sensor
- pressure
- air tank
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 101
- 230000001681 protective effect Effects 0.000 title 1
- 238000003303 reheating Methods 0.000 claims description 19
- 230000002238 attenuated effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 208000025865 Ulcer Diseases 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 231100000397 ulcer Toxicity 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
- Control For Baths (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、器具本体から循環追焚管路を経由して浴槽へ
の湯張りを行ない、浴槽中の水位を湯張り管路に配設し
た圧力センサにより検出し、浴槽水位が設定水位に達し
たことを検出すると湯張りを停止すべくなした給湯器付
自動風呂装置における圧力センサ保護装置に関するもの
である。[Detailed description of the invention] [Industrial application field] The present invention fills a bathtub with hot water from the appliance body via a circulation reheating pipe, and adjusts the water level in the bathtub to the hot water filling pipe. The present invention relates to a pressure sensor protection device for an automatic bath system with a water heater, which detects the water level of the bathtub using a pressure sensor and stops filling the water when it detects that the water level of the bathtub has reached a set water level.
ｖｔｆ記の如く浴槽中の水位を検出する圧力センサは、
浴槽水位という微少な圧力（例えば０．２〜０．７５ｋ
ｇ）を検出しようとする精密電子部品であって、構造上
耐圧性は非常に低いのに対し、水道の給水圧は通常３驕
、高いところでは５眩もあり、また、器具内に配設され
ている電磁弁の開閉による水撃などの衝撃波が器具内に
発生するので、圧力センサにこのような過大な圧力が加
わると測定精度がずれたり、破壊されたりするおそれが
ある。The pressure sensor that detects the water level in the bathtub, as described in VTF, is
The minute pressure of the bathtub water level (e.g. 0.2 to 0.75k)
g) It is a precision electronic component that attempts to detect Shock waves such as water hammer are generated within the instrument due to the opening and closing of the solenoid valve, so if such excessive pressure is applied to the pressure sensor, there is a risk that the measurement accuracy will deviate or it may be destroyed.
このため、従来は第３図に示すようして圧力センサに過
大な圧力が加オ〕らないようにしていた。For this reason, conventional methods have been used to prevent excessive pressure from being applied to the pressure sensor as shown in FIG.
すなわち、第３図において、１は器具本体、２は給湯用
熱交換器、３は注湯管路に設けたバキュームブレーカ、
４．５は同じく逆止弁、６は給湯電磁弁、７は循環追焚
管路に配設した追焚電磁弁、８は圧力センサ、９は追焚
用熱交換器、ＩＯは循環追焚用ポンプ、１１は循環往管
、１２は循環戻り管、■３は浴槽、１４は浴槽循環金具
を示し、循環追焚ポンプ１０と圧力センサ８との間に追
焚電磁弁７を配設し、浴槽への湯張り時には、追焚電磁
弁７を閉し、追焚用循環管路の戻り管１２のみを介して
湯張りするようにしている。That is, in FIG. 3, 1 is the appliance body, 2 is a heat exchanger for hot water supply, 3 is a vacuum breaker installed in the hot water pouring pipe,
4.5 is also a check valve, 6 is a hot water supply solenoid valve, 7 is a reheating solenoid valve installed in the circulation reheating pipeline, 8 is a pressure sensor, 9 is a heat exchanger for reheating, IO is a circulation reheating 11 is a circulation outgoing pipe, 12 is a circulation return pipe, 3 is a bathtub, 14 is a bathtub circulation fitting, and a reheating solenoid valve 7 is arranged between the circulation reheating pump 10 and the pressure sensor 8. When filling the bathtub with hot water, the reheating solenoid valve 7 is closed and hot water is filled only through the return pipe 12 of the reheating circulation pipe.
すなオ〕ち、第２３図に示す自動風呂装置は、図示を省
略したリモコンの自動運転スイッチをオンにすると、追
焚電磁弁７を閉じると共に給湯電磁弁６を開き、給湯用
熱交換器２により加熱された湯を逆ｉ−弁４．バキュー
ムブレーカ３．逆止弁５１給湯電磁弁６１．ポンプ１０
を介して浴槽中に給湯し、その間、圧力センサ８により
エアを含む循環口圧力を検出し、浴槽中の水位が循環金
具１４より−１−になって循環［１圧力が上昇したこと
を検出すると、給湯電磁弁６を閉じると共に追焚電磁弁
７を開き、ポンプ１０を駆動して追焚管路のエア抜きを
行ない、次いで追焚電磁弁７を閉じ、圧力センサ８によ
り水位を静圧により検出しながら給湯電磁弁６を開いて
循環追焚管路の戻り管１２のみを経由して浴槽中ｌ＼の
湯張りを行ない、圧力センサ８が設定水位に達したこと
を検知すると給湯電磁弁６を閉じて設定水位の湯張りを
終了するようになっている。In other words, in the automatic bath apparatus shown in FIG. 23, when the automatic operation switch of the remote control (not shown) is turned on, the reheating solenoid valve 7 is closed and the hot water supply solenoid valve 6 is opened, and the hot water supply heat exchanger is turned on. The hot water heated by 2 is passed through the reverse i-valve 4. Vacuum breaker 3. Check valve 51 Hot water supply solenoid valve 61. pump 10
During this time, the pressure sensor 8 detects the pressure of the circulation port containing air, and detects that the water level in the bathtub has become -1- from the circulation fitting 14 and the pressure has increased. Then, the hot water supply solenoid valve 6 is closed, and the reheating solenoid valve 7 is opened, and the pump 10 is driven to bleed air from the reheating pipeline.Then, the reheating solenoid valve 7 is closed, and the water level is adjusted to static pressure using the pressure sensor 8. The hot water supply solenoid valve 6 is opened to fill the bathtub with l\\ of hot water only via the return pipe 12 of the circulation reheating pipeline, and when the pressure sensor 8 detects that the set water level has been reached, the hot water supply solenoid valve 6 is opened while detecting the water level. The valve 6 is closed to complete the filling of hot water to the set water level.
従来技術は、前記の如く、給湯を一旦停止させた状態で
エア抜きを行なうため、本来の湯張り時間の外にエア抜
きの時間が必要となり、さらに、循環追焚管路の戻り管
のみ（往管のみの場合もある）を通して給渇せざるを得
ないので、潰食を防止するために給湯流量が制限され、
器具の能力お下廻る能力でしか湯張りを行なうことがで
きず。As mentioned above, in the conventional technology, air is removed after hot water supply is temporarily stopped, so air removal time is required in addition to the original hot water filling time. In some cases, the hot water must be supplied through the outgoing pipe (in some cases only through the outgoing pipe), so the flow rate of hot water supply is limited to prevent ulcers.
It is only possible to fill the water with the ability of the equipment.
湯張りに長時間を必要とするという問題がある。There is a problem in that it takes a long time to fill the water.
本発明は、前記の如き従来技術の問題点を改善し、多量
の注湯を行なって器具の水圧が高くなっても、また、電
磁弁の開閉などにより水撃が器具内に発生しても、圧力
センサに過度の圧力が作用するおそれがない給湯器付自
動風呂装置における圧力センサ保護装置を提供せんとす
るものである。The present invention improves the problems of the prior art as described above, and even if water pressure in the appliance increases due to pouring a large amount of water, or water hammer occurs in the appliance due to opening and closing of a solenoid valve, etc. It is an object of the present invention to provide a pressure sensor protection device for an automatic bath device equipped with a water heater, in which there is no risk of excessive pressure acting on the pressure sensor.
本発明は、前記の如き目的を達成せんがため。 The present invention aims to achieve the above objects.
湯張り管路の一部にエアタンクを連結すると共に、その
湯張り管路からエアタンクに至る管路の途中にベンチュ
リー部を形成し、かつ該ベンチュリー部どエアタンクと
の間に圧力センサを配設したことを特徴とする。An air tank is connected to a part of the hot water filling pipe, a venturi is formed in the middle of the pipe from the hot water filling pipe to the air tank, and a pressure sensor is disposed between the venturi and the air tank. It is characterized by
本発明は、前記の如く、湯張り管路の一部にエアタンク
を連結すると共に、その湯張り管路からエアタンクに至
る管路の途中にベンチュリー部を形成し、かつ該ベンチ
ュリー部とエアタンクとの間に圧力センサを配設したの
で、出湯量を多くして管路内の水圧が高くなっても、ベ
ンチュリー部によって圧力を低ドさせて圧力センサに高
圧が掛かることがなくなり、また、電磁弁の開閉などに
よる水撃が生じても、エアタンク内の空気を圧縮して？
＃撃波を吸収し、かくして圧力センサに高圧が掛かるの
を防止することができる。As described above, the present invention connects an air tank to a part of a hot water filling pipe, forms a venturi part in the middle of the pipe from the hot water filling pipe to the air tank, and connects the venturi part and the air tank. Since a pressure sensor is placed between them, even if the water pressure in the pipe increases due to the increased amount of hot water being dispensed, the pressure is lowered by the Venturi section and no high pressure is applied to the pressure sensor. Even if water hammer occurs due to opening and closing of the air tank, can the air in the air tank be compressed?
#It can absorb shock waves and thus prevent high pressure from being applied to the pressure sensor.
以ド、本発明の一実施例を第１図および第２図について
説明する。An embodiment of the present invention will now be described with reference to FIGS. 1 and 2. FIG.
第１図は本発明の一実施例を示す水系統図で、〕は器具
本体、２は給湯用熱交換器、：３はバキュームブレーカ
、４，５は逆止弁、６は給湯電磁弁、９は循環追焚用熱
交換器、１０は循環追焚用ポンプ、１１は循環往管、１
２は循環戻り管、１３は浴槽、１４は浴槽循環金具を示
す０本発明においては、従来使用されていた追焚電磁弁
の使用を廃止し、給′１Ｊ３ｊ電磁弁６を開くと＠環往
管１１と同戻り管１２との双方の管路を経由して浴槽１
３中に湯張りし得るようにし、かつ、湯張り管路の任意
の位置にベンチュリー管１５を取付け、そのベンチュリ
ー管１５の小径部にエアタンク１６を接続すると共に、
そのエアタンク１６とベンチュリー管１５との間に圧力
センサ８を配設する。FIG. 1 is a water system diagram showing an embodiment of the present invention, where ] is the appliance body, 2 is a heat exchanger for hot water supply, 3 is a vacuum breaker, 4 and 5 are check valves, 6 is a hot water solenoid valve, 9 is a heat exchanger for circulation reheating, 10 is a pump for circulation reheating, 11 is a circulation outgoing pipe, 1
Reference numeral 2 indicates a circulation return pipe, 13 indicates a bathtub, and 14 indicates a bathtub circulation fitting. In the present invention, the use of the conventional reheating solenoid valve is abolished, and when the supply solenoid valve 6 is opened, The bathtub 1 is routed through both the pipe 11 and the return pipe 12.
3, a Venturi pipe 15 is installed at any position in the hot water filling pipe, and an air tank 16 is connected to the small diameter part of the Venturi pipe 15.
A pressure sensor 8 is disposed between the air tank 16 and the venturi tube 15.
すなわち、第２図は本発明の主要部をなす第」図Ａ部の
拡大断面図であって、ベンチュリー’ｌ′？１５の小径
部に接続管１７．ジヨイント金具１８．接続管１９より
なる分岐検出管を接続し、その接続管１９の先端に所要
の容積を有するエアタンク１６を接続し、かつ、ジョイ
ン１−金具１．９に圧力センサ８を取付ける。な才９．
２０はジヨイント金具１８と圧力センサ８との間に介在
させたＯリングである。That is, FIG. 2 is an enlarged sectional view of part A of FIG. Connecting pipe 17. to the small diameter part of 15. Joint metal fittings 18. A branch detection tube consisting of a connecting tube 19 is connected, an air tank 16 having a required volume is connected to the tip of the connecting tube 19, and a pressure sensor 8 is attached to the joint 1-metal fitting 1.9. 9.
20 is an O-ring interposed between the joint fitting 18 and the pressure sensor 8.
なお、第１図および第２図においては、球状のエアタン
クを使用した例を示しているが、本発明はこのような実
施例に限定されるものではなく、例えばチューブ状のエ
アタンクを使用することもできろ。Although FIGS. 1 and 2 show an example in which a spherical air tank is used, the present invention is not limited to such an embodiment. For example, a tubular air tank may be used. You can do it too.
本発明の圧力センサ保護装置は、前記の如く構成されて
いるので、給湯電磁弁６をいっばいに開いて多量の給湯
を行なうと、湯張り管路内には高い給水圧の湯が流れる
が、ベンチュリー管１５によりその圧力は減少され、そ
の減少された給水圧が圧力センサ８に掛かるので、圧力
センサを保護することができる。また、給湯電磁弁６を
急激に開いたとき、管路内には第４図に示すような水撃
が生ずるが１本発明においては、ベンチュリー管１５に
よってその圧力を減少せしめると共に、特にエアタンク
１６中のエアを圧縮することによって第５図に示すよう
に圧力センサに作用する水撃を緩和させることができ、
さらに、給湯電磁弁６を急激に閉じたとき、管路内には
第６図に示すような水撃が生ずるが１本発明においては
前記と同様にした第７図に示すように圧力センサに作用
する水撃を減少および緩和させることができる。Since the pressure sensor protection device of the present invention is configured as described above, when the hot water supply electromagnetic valve 6 is opened all at once to supply a large amount of hot water, hot water at a high water supply pressure flows into the hot water filling pipe. The pressure is reduced by the Venturi pipe 15, and the reduced water supply pressure is applied to the pressure sensor 8, so that the pressure sensor can be protected. Furthermore, when the hot water supply electromagnetic valve 6 is suddenly opened, water hammer as shown in FIG. By compressing the air inside, water hammer acting on the pressure sensor can be alleviated as shown in Figure 5.
Furthermore, when the hot water supply solenoid valve 6 is suddenly closed, water hammer as shown in FIG. 6 is generated in the pipe, but in the present invention, the pressure sensor is detected as shown in FIG. Acting water hammer can be reduced and mitigated.
なお、図示の実施例は、給湯用熱交換器２の出側に流量
制御バルブ２１を配設した例を示しており、給湯電磁弁
の開閉時にこの流量制御バルブを絞るようにすれば圧力
センサの保護を一層確実に行なうことができる。The illustrated embodiment shows an example in which a flow rate control valve 21 is disposed on the outlet side of the hot water supply heat exchanger 2, and if the flow rate control valve is throttled when the hot water supply solenoid valve is opened or closed, the pressure sensor can be more reliably protected.
以上述べたように、本発明によれば、循環追焚管路の往
管と戻り管とをフルに活用して湯張りを行なっても、圧
力センサに耐圧以北の圧力がかがることを防止し、湯張
り所要時間を短縮すると共に器具の持つ給湯能力を最大
限に生かして湯張りすることができる効果がある。As described above, according to the present invention, even if hot water is filled by making full use of the outbound and return pipes of the circulation reheating pipeline, pressure north of the withstand pressure will not build up in the pressure sensor. This has the effect of preventing hot water from occurring, shortening the time required for filling hot water, and making the most of the hot water supply capacity of the appliance.
第１図は本発明を適用した給湯器付自動風呂装置の水系
統図、第２図は第１図のＡ部の拡大断面図、第２３図は
従来の給湯器自動風呂装置の水系統図である。第４図は
給湯電磁弁を開いたときの管路内の水撃線図、第５図は
第４図の場合の圧力センサにかかる圧力線図、第６図は
給湯電磁弁を閉じたどきの管路内の水撃線図、第７図は
第６図の場合の圧力センサにかかる圧力線図である。
２・・・給湯用熱交換器、６・・給湯電磁弁、８・・圧
力センサ、１５・・・ベンチュリー管、１６・・・エア
タンク。
第２図
特許出願人 株式会社 ガスター
代理人弁理Ｌ 秋 本 正 実 外１名竹
５ひ
図
／″
第
図
Ｂ査問
第
図
−一詩闇Fig. 1 is a water system diagram of an automatic bath system with water heater to which the present invention is applied, Fig. 2 is an enlarged sectional view of section A in Fig. 1, and Fig. 23 is a water system diagram of a conventional automatic bath system with water heater. It is. Figure 4 is a water hammer diagram inside the pipeline when the hot water supply solenoid valve is opened, Figure 5 is a pressure diagram applied to the pressure sensor in the case of Figure 4, and Figure 6 is a diagram when the hot water supply solenoid valve is closed. FIG. 7 is a diagram of the pressure applied to the pressure sensor in the case of FIG. 6. 2... Heat exchanger for hot water supply, 6... Solenoid valve for hot water supply, 8... Pressure sensor, 15... Venturi tube, 16... Air tank. Figure 2 Patent Applicant Gaster Co., Ltd. Attorney L Masami Akimoto and 1 other name Bamboo 5 Hizu/'' Figure B Examination Figure 1 - Ichishi Yami
Claims (1)
行ない、浴槽中の水位を湯張り管路に配設した圧力セン
サにより検出し、浴槽水位が設定水位に達したことを検
出すると湯張りを停止すべくなした給湯器付自動風呂装
置において、前記湯張り管路の一部にエアタンクを連結
すると共に、その湯張り管路からエアタンクに至る管路
の途中にベンチュリー部を形成し、かつ該ベンチュリー
部とエアタンクとの間に圧力センサを配設したことを特
徴とする給湯器付自動風呂装置における圧力センサ保護
装置。The bathtub is filled with hot water from the appliance body via the circulation reheating pipe, and the water level in the bathtub is detected by a pressure sensor installed in the hot water filling pipe, and it is detected when the bathtub water level has reached the set water level. Then, in an automatic bath device with a water heater designed to stop filling hot water, an air tank is connected to a part of the hot water filling pipe, and a venturi part is formed in the middle of the pipe leading from the hot water filling pipe to the air tank. 1. A pressure sensor protection device for an automatic bath device with a water heater, characterized in that a pressure sensor is disposed between the venturi portion and the air tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1104725A JP2721544B2 (en) | 1989-04-26 | 1989-04-26 | Pressure sensor protection device in automatic bath equipment with water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1104725A JP2721544B2 (en) | 1989-04-26 | 1989-04-26 | Pressure sensor protection device in automatic bath equipment with water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02287055A true JPH02287055A (en) | 1990-11-27 |
| JP2721544B2 JP2721544B2 (en) | 1998-03-04 |
Family
ID=14388474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1104725A Expired - Lifetime JP2721544B2 (en) | 1989-04-26 | 1989-04-26 | Pressure sensor protection device in automatic bath equipment with water heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2721544B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113522171A (en) * | 2021-07-21 | 2021-10-22 | 高砂电气(苏州)有限公司 | Quantitative discharging device |
-
1989
- 1989-04-26 JP JP1104725A patent/JP2721544B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113522171A (en) * | 2021-07-21 | 2021-10-22 | 高砂电气(苏州)有限公司 | Quantitative discharging device |
| CN113522171B (en) * | 2021-07-21 | 2024-03-19 | 高砂电气(苏州)有限公司 | Quantitative discharge device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2721544B2 (en) | 1998-03-04 |
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