JPH02606Y2 - - Google Patents
Info
- Publication number
- JPH02606Y2 JPH02606Y2 JP12123185U JP12123185U JPH02606Y2 JP H02606 Y2 JPH02606 Y2 JP H02606Y2 JP 12123185 U JP12123185 U JP 12123185U JP 12123185 U JP12123185 U JP 12123185U JP H02606 Y2 JPH02606 Y2 JP H02606Y2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- valve
- water
- faucet
- hot water
- 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 52
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
Landscapes
- Fluid-Driven Valves (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Description
【考案の詳細な説明】
（利用分野及び考案の概要）
本考案は先止式給湯器、特に、この種形式の給
湯器の湯温調節装置に関するものであり、出湯量
が少ない場合においても適確に湯温調節できるよ
うにするものである。[Detailed description of the invention] (Application field and overview of the invention) The present invention relates to a stop-start type water heater, and in particular to a hot water temperature control device for this type of water heater, and is suitable even when the amount of hot water output is small. This allows you to accurately adjust the temperature of the water.
（従来技術及びその問題点）
従来の先止式給湯器では、第５図の如く給湯用
の蛇口２を開放すると水圧応動ガス弁２０の作用
によつて熱交換器２１の下方のバーナが燃焼状態
となり、前記蛇口の開閉に応じて、自動的にバー
ナの燃焼が制御できる。又、バーナの燃焼能力を
一定とした場合には、蛇口２の開度によつて出湯
量が調節できることから、出湯湯温が調節でき、
出湯量が多い場合には低温の湯が、逆に、出湯量
が少ない場合には高温の湯が取り出せる。(Prior art and its problems) In a conventional stop-start type water heater, when the hot water supply faucet 2 is opened as shown in FIG. The combustion of the burner can be automatically controlled in accordance with the opening and closing of the faucet. In addition, when the combustion capacity of the burner is constant, the amount of hot water dispensed can be adjusted by the opening degree of the faucet 2, so the temperature of the hot water dispensed can be adjusted.
When the amount of hot water coming out is large, you can get low temperature hot water, and conversely, when the amount of hot water coming out is small, you can get hot water.
ところが、この従来のものでは、熱交換器への
水入口側には、同図に示すような流量式のガバナ
１０が挿入されていることから、出湯量の特に少
ない条件下での湯温が、出湯量の多い条件下にお
ける湯温とは不連続となり、少湯量での湯温調節
がやりにくい。 However, in this conventional system, a flow type governor 10 as shown in the figure is inserted on the water inlet side to the heat exchanger, so that the water temperature under conditions where the amount of hot water dispensed is particularly low. The hot water temperature is discontinuous with that under conditions where a large amount of hot water is dispensed, making it difficult to adjust the hot water temperature with a small amount of hot water.
流量式のガバナ１０では、ダイヤフラムを貫通
して水が一定以上流れたとき、下流側を一定圧力
に維持しようとするものであるから、例えば蛇口
を絞つたとき、その流量が動作水量以下の条件下
では、ガバナ機能を発揮せず、給水圧の変動に伴
なつて蛇口２の流量が変化するからであり、蛇口
２の開度全域において下流側の流路（水回路）が
定圧条件下に置かれないからである。 The flow type governor 10 attempts to maintain a constant pressure on the downstream side when water passes through the diaphragm and flows above a certain level.For example, when a faucet is turned off, the flow rate is lower than the operating water flow. This is because the flow rate of the faucet 2 changes as the water supply pressure fluctuates, and the flow path (water circuit) on the downstream side is under constant pressure conditions throughout the opening of the faucet 2. This is because it is not placed.
（技術的課題）
本考案は、このような、熱交換器２１の上流側
の水回路に二次側圧力を一定条件に規制する減圧
弁を挿入する形式の先止式給湯器において、少湯
量域での蛇口の開度調節による湯温調節をやり易
くするため、蛇口の開度全域において熱交換器以
下の下流側の水回路の圧力が一定となるようにす
ることをその技術的課題とする。(Technical Problem) The present invention is aimed at reducing the amount of hot water in a stop-start type water heater in which a pressure reducing valve is inserted into the water circuit on the upstream side of the heat exchanger 21 to regulate the secondary pressure to a constant condition. In order to make it easier to adjust the hot water temperature by adjusting the opening of the faucet in the area, the technical challenge is to ensure that the pressure in the downstream water circuit below the heat exchanger remains constant throughout the opening of the faucet. do.
（手段）
上記技術的課題を解決するために講じた本考案
の技術的手段は、減圧弁を、流れのない状態では
内部回路を遮断し、下流側開放状態では、前記内
部回路の圧力に応じて開度変化する応動弁を具備
する圧力式の減圧弁としたことである。(Means) The technical means of the present invention taken to solve the above technical problem is that the pressure reducing valve shuts off the internal circuit when there is no flow, and responds to the pressure in the internal circuit when the downstream side is open. This is a pressure-type pressure reducing valve equipped with a response valve that changes its opening degree.
（作用）
本考案の上記技術的手段は次のように作用す
る。(Operation) The above technical means of the present invention operates as follows.
熱交換器２１以下の下流側の水回路には、いわ
ゆる、圧力式の減圧弁を介して給水される。この
減圧弁は蛇口を閉じた状態ではその内部回路が応
動弁によつて遮断状態にあり、蛇口開放状態で
は、内部回路の圧力に応じてこの回路内に挿入さ
れる応動弁の開度が変化し、二次側の圧力が一定
に減圧される。 Water is supplied to the water circuit on the downstream side of the heat exchanger 21 and below through a so-called pressure-type pressure reducing valve. When the faucet is closed, the internal circuit of this pressure reducing valve is shut off by the response valve, and when the faucet is open, the opening degree of the response valve inserted into this circuit changes depending on the pressure in the internal circuit. However, the pressure on the secondary side is constantly reduced.
従つて、蛇口が全閉の状態から、全開状態まで
の全域において熱交換器以下の水回路が設定圧力
に維持され、蛇口までの回路抵抗にかかわらず、
蛇口の開度変化に応じて出湯量が比例的に変化す
る。 Therefore, the water circuit below the heat exchanger is maintained at the set pressure throughout the entire range from when the faucet is fully closed to when it is fully open, regardless of the circuit resistance up to the faucet.
The amount of hot water proportionally changes according to the change in the opening of the faucet.
（効果）
本考案は上記構成であるから、次の特有の効果
を有する。(Effects) Since the present invention has the above configuration, it has the following unique effects.
蛇口の開度全域において、出湯量はその開度変
化に応じて比例的に変化するから、湯温調節がや
り易い。 Over the entire range of faucet openings, the amount of hot water that comes out changes proportionally in accordance with changes in the opening of the faucet, making it easy to adjust the temperature of the hot water.
すなわち、出湯量が少ない場合にも、給水圧の
変動があつても蛇口の開度調節によつて出湯量が
多い場合と同様に湯温調節できる。 That is, even when the amount of hot water dispensed is small, the hot water temperature can be adjusted in the same way as when the amount of hot water dispensed is large by adjusting the opening of the faucet even if the water supply pressure fluctuates.
（実施例）
以下、本考案の実施例を第１図〜第４図に基づ
いて説明する。(Example) Hereinafter, an example of the present invention will be described based on FIGS. 1 to 4.
図示実施例のものでは、圧力式の減圧弁１が熱
交換器２１の上流側に挿入され、この熱交換器２
１の下流側に蛇口２が設けられる構成で、熱交換
器２１の下方に設ける主バーナ３へのガス回路と
前記水回路とは水圧応動ガス弁２０によつて関連
せしめられ、種火バーナ３１を点火状態とする
と、蛇口２の開放により自動的に主バーナ３への
ガス回路が開放して主バーナ燃焼状態となり供給
される。 In the illustrated embodiment, a pressure-type pressure reducing valve 1 is inserted upstream of a heat exchanger 21.
1, the gas circuit to the main burner 3 provided below the heat exchanger 21 and the water circuit are connected by a hydraulically responsive gas valve 20, and the pilot burner 31 When the gas is in the ignited state, the gas circuit to the main burner 3 is automatically opened by opening the faucet 2, and the main burner enters the combustion state and is supplied.
次に、減圧弁１は、減圧原理としては公知のも
のを採用し、応動弁４の下流側にダイヤフラム１
２からなる回路壁を設け、このダイヤフラムの外
側には大気に連通する空室１３を設け、この空室
に設けた調節ネジ１４とダイヤフラム１２の中央
の当て板１１とを対向させ、その間に二次圧設定
用のバネ１５が介装されている。 Next, the pressure reducing valve 1 adopts a known pressure reducing principle, and a diaphragm 1 is installed downstream of the response valve 4.
A circuit wall consisting of two parts is provided, and a cavity 13 communicating with the atmosphere is provided on the outside of this diaphragm, and an adjustment screw 14 provided in this cavity and a patch plate 11 in the center of the diaphragm 12 are made to face each other. A spring 15 for setting the next pressure is interposed.
このダイヤフラム１２の動作に応動する応動弁
４はダイヤフラム１２と同軸に設けた弁口の弁座
４１に対接し、この応動弁４の弁軸４２の下流端
は、フランジ部４３となり、このフランジ部４３
と弁口の外周間に介装した弱い補助バネ４４によ
り、ダイヤフラム１２の中央部と前記フランジ部
４３とが対接するようになつている。 The response valve 4 that responds to the operation of the diaphragm 12 is in contact with a valve seat 41 of a valve port provided coaxially with the diaphragm 12, and the downstream end of the valve shaft 42 of the response valve 4 becomes a flange portion 43. 43
A weak auxiliary spring 44 interposed between the valve opening and the outer periphery of the valve port allows the center portion of the diaphragm 12 and the flange portion 43 to come into contact with each other.
又、弁座４１と対向するように、凹部４５が形
成され、この凹部４５に応動弁４に連設したピス
トン部４６が摺動自在に嵌入し、このピストン部
４６から弁軸４２までの範囲を中空にし、弁軸４
２の側孔４７，４７及び中空部を介して前記凹部
４５と応動弁４の下流側とを連通させている。従
つて、ピストン部４６が凹部４５内を摺動すると
きに、このピストン部４６によつて凹部４５が密
閉されることによる不都合が防止できる。 Further, a recess 45 is formed to face the valve seat 41, and a piston 46 connected to the response valve 4 is slidably fitted into the recess 45, and the range from the piston 46 to the valve shaft 42 is Make the valve stem 4 hollow.
The recess 45 and the downstream side of the response valve 4 are communicated through the side holes 47, 47 and the hollow portion. Therefore, when the piston portion 46 slides within the recess 45, problems caused by the piston portion 46 sealing the recess 45 can be prevented.
上記減圧弁の場合、蛇口２が開放されると、ダ
イヤフラム１２と応動弁４との間の空室内圧力は
低下して、バネ１５の付勢力により応動弁４が開
弁し、応動弁４の上流側から下流側に水が流れ
る。 In the case of the pressure reducing valve described above, when the faucet 2 is opened, the pressure in the chamber between the diaphragm 12 and the response valve 4 decreases, and the response valve 4 opens due to the biasing force of the spring 15. Water flows from upstream to downstream.
入口側の圧力がこのダイヤフラム１２に作用す
ると、バネ１５及び補助バネ４４とダイヤフラム
１２に作用する圧力との関係から、応動弁４の開
度が所定のものとなり、下流側の圧力が一定に保
たれる。応動弁４の上流側の圧力に変動が生じた
場合には新しいバランス状態となり、同様に下流
側の圧力が一定となる。 When the pressure on the inlet side acts on this diaphragm 12, the opening degree of the response valve 4 becomes a predetermined value due to the relationship between the pressure acting on the spring 15, the auxiliary spring 44, and the diaphragm 12, and the pressure on the downstream side is kept constant. dripping If the pressure on the upstream side of the response valve 4 fluctuates, a new balanced state is established, and the pressure on the downstream side similarly becomes constant.
蛇口２の開度が変化して、下流側の流量が極小
になつた場合にも、応動弁４の開度はそれに見合
つた開度となり、やはり、下流側の圧力は予め設
定された二次圧に一致するものとなる。従つて、
蛇口２を閉にした場合にも、ダイヤフラム１２に
接する空室の圧力は、上記設定二次圧に一致した
ものとなる。 Even if the opening degree of the faucet 2 changes and the flow rate on the downstream side becomes extremely small, the opening degree of the response valve 4 will be adjusted accordingly, and the downstream pressure will still be at the preset secondary level. It corresponds to the pressure. Therefore,
Even when the faucet 2 is closed, the pressure in the chamber in contact with the diaphragm 12 matches the set secondary pressure.
又、この実施例では、空室１３側の大気側への
連通路を調節ネジ１４のネジ嵌合部の間隙に設定
しているから、この部分の通過抵抗は大きく、ダ
イヤフラム１２が損傷して水が漏れ出たとしても
大量に流出することはなく、極微量のものとな
り、器具設置部を汚損させる心配がない。 In addition, in this embodiment, since the communication path from the chamber 13 side to the atmosphere side is set in the gap between the screw fitting parts of the adjustment screws 14, the passage resistance in this part is large, and the diaphragm 12 may be damaged. Even if water leaks, a large amount will not flow out, and the amount will be extremely small, so there is no need to worry about staining the equipment installation area.
尚、空室１３の外壁側に透孔１６を設ける場
合、この透孔配設部の内面の凹所に吸水性ポリマ
ーゴムからなる栓１７を遊嵌させておくと、上記
漏水が殆どなくなる。 Incidentally, when the through hole 16 is provided on the outer wall side of the cavity 13, if the plug 17 made of water-absorbing polymer rubber is loosely fitted into the recess on the inner surface of the through hole disposed portion, the above-mentioned water leakage can be almost eliminated.
ダイヤフラム１２が破れて、この栓１７に水が
侵入すると、この栓が膨潤して透孔１６を閉塞す
るからである。 This is because if the diaphragm 12 is ruptured and water enters the plug 17, the plug swells and closes the through hole 16.
又、透孔１６を、通気性を有するが通水性のな
い膜１８で内面側から被覆密閉するようにしても
同様の効果が得られる。 Further, the same effect can be obtained by covering and sealing the through hole 16 from the inner side with a membrane 18 having air permeability but not water permeability.
次に、この実施例では、第４図に詳述するよう
に、空室１３の外壁１９の内面形状を、ダイヤフ
ラム１２が外側にある程度変形した時の、このダ
イヤフラム１２と当て板１１とのなする断面外形
に略一致させてあるから、ダイヤフラム１２の内
面側に異常な圧力が作用した場合においてもこの
ダイヤフラムが被損しにくいものとなる。 Next, in this embodiment, as detailed in FIG. 4, the inner surface shape of the outer wall 19 of the cavity 13 is changed to the shape of the diaphragm 12 and the backing plate 11 when the diaphragm 12 is deformed outward to some extent. Since the diaphragm 12 is made to substantially match the cross-sectional outer shape of the diaphragm 12, even if abnormal pressure is applied to the inner surface of the diaphragm 12, this diaphragm is less likely to be damaged.
さらに、この実施例では、感温作動弁５を減圧
弁１の下流側に挿入したから、水温の変化によ
て、この感温作動弁の開度が変化する。 Furthermore, in this embodiment, since the temperature-sensitive valve 5 is inserted downstream of the pressure-reducing valve 1, the degree of opening of the temperature-sensitive valve changes with changes in water temperature.
従つて、冬期等の水温の低い場合には、この感
温作動弁５によつて下流側への流量が制限される
こととなり、夏期におけると同様の蛇口の絞り
で、ほぼ同程度の温度の湯が得られることとな
る。 Therefore, when the water temperature is low, such as in winter, the flow rate to the downstream side is restricted by the temperature-sensitive valve 5, and the same faucet restriction as in summer can be used to maintain approximately the same temperature. You will get hot water.
以上において、上記実施例のものでは、弁体４
はシール用のパツキンを介して弁座４１に対接
し、水回路を遮断するようになつているが、この
遮断状態はラフなものでよく、パツキンのない金
属接触による回路遮断状態であつてもよい。 In the above, in the above embodiment, the valve body 4
is in contact with the valve seat 41 via a sealing gasket to shut off the water circuit, but this interruption state may be rough, and even if the circuit is interrupted by metal contact without a gasket. good.
第１図は本考案実施例の断面図、第２図、第３
図は空室１３の外壁構造の変形例の説明図、第４
図は第１図の場合の外壁１９と変形したダイヤフ
ラム１２との関係を示す説明図、第５図は従来例
の説明図であり、図中、１……減圧弁、２……蛇
口、２１……熱交換器。
Figure 1 is a sectional view of the embodiment of the invention, Figures 2 and 3.
The figure is an explanatory diagram of a modified example of the outer wall structure of vacant room 13,
The figure is an explanatory view showing the relationship between the outer wall 19 and the deformed diaphragm 12 in the case of Fig. 1, and Fig. 5 is an explanatory view of the conventional example. ……Heat exchanger.
Claims (1)
一定条件に規制する減圧弁を挿入する形式の先止
式給湯器において、減圧弁を、流れのない状態で
は内部回路を遮断し、下流側開放状態では、前記
内部回路の圧力に応じて開度変化する応動弁を具
備する圧力式の減圧弁とした先止式給湯器。 In a stop-start water heater of the type in which a pressure reducing valve is inserted in the water circuit on the upstream side of the heat exchanger 21 to regulate the secondary side pressure to a constant condition, the pressure reducing valve is shut off and the internal circuit is cut off when there is no flow. In the downstream open state, the stop-start water heater is a pressure-type pressure reducing valve equipped with a response valve whose opening degree changes according to the pressure of the internal circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12123185U JPH02606Y2 (en) | 1985-08-06 | 1985-08-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12123185U JPH02606Y2 (en) | 1985-08-06 | 1985-08-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6229047U JPS6229047U (en) | 1987-02-21 |
| JPH02606Y2 true JPH02606Y2 (en) | 1990-01-09 |
Family
ID=31010306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12123185U Expired JPH02606Y2 (en) | 1985-08-06 | 1985-08-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02606Y2 (en) |
-
1985
- 1985-08-06 JP JP12123185U patent/JPH02606Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6229047U (en) | 1987-02-21 |
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