JPH02245584A - Automatic pressure regulating valve - Google Patents
Automatic pressure regulating valveInfo
- Publication number
- JPH02245584A JPH02245584A JP6705189A JP6705189A JPH02245584A JP H02245584 A JPH02245584 A JP H02245584A JP 6705189 A JP6705189 A JP 6705189A JP 6705189 A JP6705189 A JP 6705189A JP H02245584 A JPH02245584 A JP H02245584A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- hot water
- water
- valve body
- water side
- 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
- 230000001105 regulatory effect Effects 0.000 title claims description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 147
- 239000011347 resin Substances 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 19
- 239000003566 sealing material Substances 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 description 5
- 239000011162 core material Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 230000001052 transient effect Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Landscapes
- Safety Valves (AREA)
- Multiple-Way Valves (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は湯と水の圧力を調圧し混合を行ない易くする給
湯用の自動調圧弁に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an automatic pressure regulating valve for hot water supply that regulates the pressure of hot water and water to facilitate mixing.
従来の技術
従来この種の自動調圧弁には、第４図に示すようなもの
があった。（例えば実開昭５４−１７４１８号公報）
第４図において、弁框体１内に、湯側流路２と、水側流
路３を経て供給される湯と水の圧力を調圧する調圧エレ
メント４が設けられている。調圧エレメント４は、ステ
ンレス等の金属で構成されており、端部に湯側弁体５と
水側弁体６が、また中央部に湯と水の流路を仕切るピス
トン７が設けられている、湯側弁体５と水側弁体６は、
弁框体１に設けられた湯側弁座８と水側弁座９との間隙
が増減されることにより、２次圧力を等しく調圧してい
る。！１１圧エレメント４と弁框体７との間隙は、通常
２０μ閣程度にでき上っている。この間隙を大きくする
と洩れが多くなり、ピストン７部において湯と水が洩れ
によって混ったり、湯側弁体５部や水側弁体６部におい
て１次側の湯や水が、２次側室１０．１１に洩れて２次
側の等正置が狂って来るおそれがあるため、極力小さく
設定されていた。2. Description of the Related Art Conventionally, there has been an automatic pressure regulating valve of this type as shown in FIG. (For example, Japanese Utility Model Application Publication No. 54-17418) In FIG. 4, pressure regulation is carried out to regulate the pressure of hot water and water supplied through the hot water side flow path 2 and the water side flow path 3 in the valve frame 1. Element 4 is provided. The pressure regulating element 4 is made of metal such as stainless steel, and has a hot water side valve body 5 and a water side valve body 6 at the ends, and a piston 7 that partitions the hot water and water flow paths in the center. The hot water side valve body 5 and the water side valve body 6 are
By increasing or decreasing the gap between the hot water side valve seat 8 and the water side valve seat 9 provided on the valve frame 1, the secondary pressure is regulated equally. ! The gap between the 11-pressure element 4 and the valve frame 7 is normally about 20 μm. If this gap is made larger, leakage will increase, causing hot water and water to mix at piston 7, and hot water and water on the primary side to flow into the secondary side at hot water side valve body 5 and water side valve body 6. 10.11, and the equal positioning of the secondary side may be distorted, so it was set as small as possible.
調圧され等正比された湯と水は、湯側弁１２と水側弁１
３により流量比が調整され、混合されて給湯対象に供給
されていた。The hot water and water, which have been pressure-regulated and have an equal ratio, are supplied to the hot water side valve 12 and the water side valve 1.
3, the flow rate ratio was adjusted, and the mixed water was supplied to the object of hot water supply.
発明が解決しようとする課題
しかしながらこの従来の自動調圧弁は、上記のように構
成されていたため、次のような課題を有していた。Problems to be Solved by the Invention However, since this conventional automatic pressure regulating valve was constructed as described above, it had the following problems.
（１） 調圧エレメント４は、湯や水の１次圧力が変
動した場合２次圧力を等しくするために瞬時に動作する
が、金属製であって重いため慣性が大きく、バランス点
を行き過ぎてから再びバランス点に戻るので、１次圧力
変動時に混合湯温がオーバシュートシたりアンダーシュ
ートし性能が良くなかった。(1) The pressure regulating element 4 operates instantaneously to equalize the secondary pressure when the primary pressure of hot water or water fluctuates, but since it is made of metal and is heavy, it has a large inertia and may not go beyond the balance point. Since it returns to the balance point again, the mixed water temperature overshoots or undershoots when the primary pressure fluctuates, resulting in poor performance.
（２）軽量化のため調圧エレメント４を樹脂製にしたと
しても、樹脂の熱膨張係数が大きいため、水道法で定め
られている青銅製の弁框体に熱膨張によって湯側弁体５
部やピストン７部が当接されてしまい、調圧弁の機能を
果さなくなるおそれがあった。(2) Even if the pressure regulating element 4 is made of resin to reduce weight, the coefficient of thermal expansion of resin is large, so the hot water side valve body 5
There was a risk that the pressure regulating valve would no longer function as the pressure regulating valve would come into contact with the piston and the piston 7.
（３）特に湯の中に混入して流れて来る気泡の通過時に
、調圧エレメント４は一時的に激しく振動するが、調圧
エレメント４が２次側室１０．１１に当たり、連続的に
金属音がしていた。(3) The pressure regulating element 4 vibrates violently temporarily, especially when air bubbles mixed in and flowing into the hot water pass, but the pressure regulating element 4 hits the secondary chamber 10 and 11, causing a continuous metallic sound. was doing it.
（４） １ｍ圧エレメント４と弁框体１との間隙が少
ないため、湯や水の中に含まれているスケール成分が析
出し堆積して来ると、この間隙が埋められて来て、調圧
エレンメトが比較的単期間に固着することがあった。ま
た、このスケール付着については、金属製の弁框体１と
調圧エレメント４は電位を有しているため、イオン化さ
れているスケール成分が付着し易かった。(4) Since the gap between the 1m pressure element 4 and the valve body 1 is small, when the scale components contained in hot water or water precipitate and accumulate, this gap is filled and the control Pressure elemets were sometimes fixed for a relatively short period of time. Further, regarding this scale adhesion, since the metal valve frame body 1 and the pressure regulating element 4 have a potential, ionized scale components were likely to adhere thereto.
（５） 弁框体１の内側部や調圧エレメント４は、複
雑で精度も要するため、加工工数が多くかかっていた。(5) The inner part of the valve frame body 1 and the pressure regulating element 4 are complicated and require precision, which requires a large number of man-hours for machining.
本発明はこれら従来の課題を解決するものであり、軽量
化を図った加工が容易で信頼性の高い自動調圧弁の提供
と、気泡の通過時に振動音がしない調圧弁の提供を目的
としている。The present invention is intended to solve these conventional problems, and aims to provide an automatic pressure regulating valve that is lightweight, easy to process, and highly reliable, and a pressure regulating valve that does not produce vibration noise when bubbles pass through. .
課題を解決するための手段
上記課題を解決するために本発明の自動調圧弁は、８１
脂製のシリンダーと、このシリンダーの外周部に設けた
可圧縮性のシール材と、樹脂製の調圧エレメントを有し
、シリンダーの外周部と弁框体の内周との間隙を、熱膨
張時のシリンダー膨張分以上に設定して構成するもので
ある。Means for Solving the Problems In order to solve the above problems, the automatic pressure regulating valve of the present invention has the following features:
It has a cylinder made of oil, a compressible sealing material provided on the outer periphery of this cylinder, and a pressure regulating element made of resin, and the gap between the outer periphery of the cylinder and the inner periphery of the valve body is It is configured to be set at a value greater than the cylinder expansion at the time of the cylinder expansion.
また、調圧エレメントに羽根を設け、湯、水の流れによ
って調圧エレメントが回転できるように構成するもので
ある。Further, the pressure regulating element is provided with blades so that the pressure regulating element can be rotated by the flow of hot water or water.
また、調圧エレメントに振動防止用のダンパー手段を付
けて構成するものである。Further, the pressure regulating element is constructed by attaching a damper means for vibration prevention.
作用
上記した構成により本発明の自動調圧弁は、熱膨張時の
シリンダーの膨張をシール材の圧縮によって吸収し、膨
張時にシリンダーが内側に変形することを防止してシリ
ンダーと調圧エレメントの樹脂化を達成し、軽量化によ
る性能の向上と、成型による加工の容易化、スケール付
着の防止を図るものである。Operation With the above-described structure, the automatic pressure regulating valve of the present invention absorbs the expansion of the cylinder during thermal expansion by compressing the sealing material, prevents the cylinder from deforming inward during expansion, and makes the cylinder and pressure regulating element resinous. This aims to improve performance through weight reduction, facilitate processing through molding, and prevent scale adhesion.
また、羽根によって調圧エレメントを回転させ、スケー
ル付着の防止や、湯、水の高圧側から低圧側への洩れの
低減を図るものである。In addition, the pressure regulating element is rotated by a blade to prevent scale adhesion and to reduce leakage of hot water or water from the high pressure side to the low pressure side.
更に、調圧エレメントに設けたダンパー手段により、気
泡通過時等における振動音の発生を防止するものである
。Furthermore, the damper means provided in the pressure regulating element prevents the generation of vibration noise when bubbles pass.
実施例
以下、本発明の実施例を第１図から第３図に基づいて説
明する。Embodiments Hereinafter, embodiments of the present invention will be explained based on FIGS. 1 to 3.
第１図は第１の実施例を示すものである。湯流路１４と
水流路１５を通って供給される湯と水は、各々のフィル
ダ−１６，１７と逆止弁１８．１９を通って弁框体２０
内に入る。FIG. 1 shows a first embodiment. The hot water and water supplied through the hot water flow path 14 and the water flow path 15 pass through the respective filters 16 and 17 and check valves 18 and 19 and reach the valve body 20.
Go inside.
弁框体２０は青ｗ４ｓｓ物でできており、内部に湯と水
の入口２１．２２を有した樹脂製のシリンダー２３が設
けられている。この樹脂製のシリンダー２３の外周部２
４には、可圧縮性のシール材であるゴム製の０リング２
５．２６．２７が設けられている。シリンダー２３の内
周部は、熱膨張を考慮して常温時では、湯側の内周部２
８の径が水側の内周部２９の径より小さくなるようにテ
ーパー状を成している。このテーパー状の形状は、樹脂
による成型時において内型を抜く時の抜き勾配にもなっ
ている。外周部２４は一応、同径となっているが、必要
があるならばテーバをつけてもよい。The valve body 20 is made of blue W4SS material, and is provided with a resin cylinder 23 having hot water and water inlets 21 and 22 inside. The outer periphery 2 of this resin cylinder 23
4 is a rubber O-ring 2 which is a compressible sealing material.
5.26.27 are provided. Considering thermal expansion, the inner circumference of the cylinder 23 is the same as the inner circumference 2 on the hot water side at room temperature.
8 is tapered so that the diameter thereof is smaller than the diameter of the inner peripheral portion 29 on the water side. This tapered shape also serves as a draft angle when removing the inner mold during resin molding. Although the outer peripheral portion 24 has the same diameter, it may be tapered if necessary.
シリンダー２３の外周部２４と、弁框体２０の内周部３
０との間隙は、使用時に湯によってシリンダー２３が膨
張しても、外周部２４が内周部３０に当たらないように
設定されている。この時、膨張による外周部２４の径の
増加は、０リング２５．２６．２７が圧縮されてこれを
吸収する。この間隙を極端に少なくしたり、もしくはシ
リンダー２３を弁框体２０に圧入したりすると、シリン
ダー２３の熱膨張時に膨張分が外周方向に逃げられない
ため、内径にせり出し、内径が小さくなるおそれがあっ
たが、上記の構成によりこれを防止している。The outer circumference 24 of the cylinder 23 and the inner circumference 3 of the valve frame body 20
The gap between the cylinder 23 and the cylinder 23 is set so that the outer peripheral part 24 does not come into contact with the inner peripheral part 30 even if the cylinder 23 is expanded by hot water during use. At this time, the O-rings 25, 26, and 27 are compressed to absorb the increase in the diameter of the outer peripheral portion 24 due to expansion. If this gap is extremely reduced, or if the cylinder 23 is press-fitted into the valve frame 20, the thermal expansion of the cylinder 23 will not be able to escape toward the outer circumference, so it will protrude toward the inner diameter, potentially reducing the inner diameter. However, the above configuration prevents this.
シリンダー２３の内部には、湯の１次圧を減圧する湯側
弁体３１、水の１次圧を減圧する水側弁体３２、湯と水
の流路を仕切るピストン３３、水側の端部に設けたダン
パー３４が軸３５により連結された調圧エレメント皿が
設けられている。Ｓｌｌ圧エレメント話は外部が成型さ
れた樹脂層３７で、また内部が補強とひけ防止を兼ねた
ステンレス製の芯材３８とで構成されている。芯材３８
は、水側弁体３１．湯側弁体３２、ピストン３３に当た
る所は径を大きく構成してあり、樹脂層３７に極端に肉
厚の厚い所と薄い所ができることを防ぎ、成形収縮時に
形状が変形することを防止している。また芯材の端部３
９．４０部は、樹脂層３７よりもはみ出して構成されて
いる。これは設置初期の試運転時に、配管中の大量の空
気が流れ込んで来た時に左右に激しく揺すられ、弁框体
２０内部に当たっても破損をしないように配慮している
ものである０通常使用中に湯の中に気泡が混じって来た
り、湯側か高圧で水側か低圧の時に、湯側が極端に絞ら
れて湯側弁体部３１で気泡が発生しても、ダンパー３４
の作用で振動が防止されている。ダンパー３４はダンパ
ー室４１内に収納されており、両者の間隙が比較的小さ
く設定されていてダンピング効果を出している。また、
ダンパー１６ｆｌにはガイドを兼ねた羽根４２が設けら
れており、湯流路、水流路に臨む弁体部に設けた羽根４
３．４４が流れによって力を受け、調圧エレメントＬ６
が回転することによってこの羽根４２も回転する。ダン
パー３４．ダンパー室４１は、スケールの付着を防止す
るために水側に設けられているが、水中のゴミ等がダン
パー室４１内に入り込むことを羽根４２の回転によって
防止している。なお、湯側高圧時に湯側弁体３１部にお
いて気泡が発生することを押える目的で、湯側弁体３１
の外径は、ピストン３３や水側弁体３２の外径より若干
小さ（設定されている。Inside the cylinder 23, there are a hot water side valve body 31 that reduces the primary pressure of hot water, a water side valve body 32 that reduces the primary pressure of water, a piston 33 that partitions the hot water and water flow paths, and a water side end. A pressure regulating element plate is provided to which a damper 34 provided in the section is connected by a shaft 35. The Sll pressure element is made up of a molded resin layer 37 on the outside, and a stainless steel core material 38 on the inside that serves both as reinforcement and to prevent sinking. Core material 38
is the water side valve body 31. The diameters of the areas corresponding to the hot water side valve body 32 and the piston 33 are made large to prevent the formation of extremely thick and thin areas in the resin layer 37 and to prevent the shape from deforming during molding shrinkage. There is. Also, the end 3 of the core material
9.40 parts is configured to protrude beyond the resin layer 37. This is to prevent damage even if the inside of the valve body 20 is hit by violent shaking from side to side when a large amount of air flows into the piping during a test run at the initial stage of installation.0During normal use. If air bubbles get mixed into the hot water, or when the hot water side is at high pressure and the water side is at low pressure, even if the hot water side is extremely throttled and air bubbles are generated at the hot water side valve body 31, the damper 34
Vibration is prevented by the action of The damper 34 is housed in a damper chamber 41, and the gap therebetween is set relatively small to provide a damping effect. Also,
The damper 16fl is provided with a vane 42 that also serves as a guide, and the vane 4 is provided on the valve body facing the hot water flow path and the water flow path.
3.44 receives force from the flow, pressure regulating element L6
When the blade 42 rotates, the blade 42 also rotates. Damper 34. The damper chamber 41 is provided on the water side to prevent scale from adhering to the damper chamber 41, and the rotation of the blades 42 prevents dirt and the like in the water from entering the damper chamber 41. In addition, in order to suppress the generation of air bubbles in the hot water side valve body 31 when the hot water side pressure is high, the hot water side valve body 31 is
The outer diameter of is set to be slightly smaller than the outer diameter of the piston 33 and the water side valve body 32.
調圧された湯と水は下流に設けた混合弁４５部で比率が
調節され、混合湯温がサーミスタ４６で検出され、設定
器４７で設定した値と制御器４８で比較され、適温が得
られるようにモータ４９にて混合弁４５がフィードパ・
ツク制御される。また、流量は設定器４７での設定値と
流量制御部５０のセンサ信号が制御器４８で比較され、
流量制御部５０内の制御弁を調節してフィードバック制
御ｎされる。The ratio of the pressure-regulated hot water and water is adjusted by a mixing valve 45 provided downstream, and the temperature of the mixed water is detected by a thermistor 46 and compared with the value set by a setting device 47 by a controller 48 to obtain an appropriate temperature. The mixing valve 45 is controlled by the motor 49 so that the
Controlled. Further, the flow rate is determined by comparing the setting value in the setting device 47 and the sensor signal of the flow rate control unit 50 in the controller 48.
Feedback control is performed by adjusting the control valve in the flow rate control section 50.
次にこの実施例の動作を説明する。Next, the operation of this embodiment will be explained.
設定器４７で給湯の開始を指示すると、流量制御部５０
で流路が開成されて湯、水が流れ出す。湯と水の流れに
より、調圧エレメント３６が回転しながら２次圧を等し
く調整する。湯と水の１次圧は、湯側弁体３１と水側弁
体３２の受圧面積がピストン３３の受圧面積とほぼ等し
く設定されているため、調圧エレメント田は湯と水の２
次圧の差だけで動く。When the setting device 47 instructs to start hot water supply, the flow rate control unit 50
The flow path is opened and hot water and water flow out. Due to the flow of hot water and water, the pressure regulating element 36 rotates to equalize the secondary pressure. The pressure-receiving area of the hot-water side valve body 31 and the water-side valve body 32 is set to be approximately equal to the pressure-receiving area of the piston 33.
It moves only by the difference in pressure.
調圧エレメント皿は、湯と水の流れによってシリンダー
２３の内周部から浮上して回転する。このため調圧エレ
メント現を左右に動かす際に摺動力が発生せず、きわめ
て小さい力で動作ができる。このことは、湯と水の２次
圧に微少な差が生じても、調圧ニレメンｔ４１が動いて
調圧が高精度に行なえることを意味している。また、回
転することにより相対的に流速が速くなり、またピスト
ン３３部やダンパー３４部においては、流体的摩擦や羽
根４２により、間隙部へのスケール付着やゴミ嗜みの防
止ができるように流体的な流れが生じさせられる。The pressure regulating element pan floats up from the inner periphery of the cylinder 23 and rotates due to the flow of hot water. Therefore, no sliding force is generated when the pressure regulating element is moved from side to side, and it can be operated with extremely small force. This means that even if there is a slight difference between the secondary pressures of hot water and water, the pressure adjustment element t41 moves and the pressure can be adjusted with high precision. In addition, due to the rotation, the flow speed becomes relatively high, and in the piston 33 and damper 34 parts, fluid friction and vanes 42 prevent scale from adhering to the gap and dirt from being collected. A flow is generated.
また、回転し、シリンダー２３の内周から浮上している
ため、第２図に示すように浮上しない場合に比べて、ピ
ストン３３とシリンダー２３の間隙が全周に亘って均一
になり、湯、水の表面張力が働き易くなって漏れが少な
くなる。In addition, since it rotates and floats from the inner circumference of the cylinder 23, the gap between the piston 33 and the cylinder 23 becomes uniform over the entire circumference, compared to the case where the piston 33 and the cylinder 23 do not float as shown in FIG. The surface tension of water becomes more effective, reducing leakage.
湯が流れることによって、シリンダー２３は膨張するが
０リング２５．２６．２７が圧縮されてこれを吸収し、
最大に膨張してもシリンダー外周部２４が弁框体２０の
内周部３０に当たることはない、また、膨張によってテ
ーパー状となっていたシリンダー２３は、湯側の内周部
２８が特に大きくなるため、動作時においては略平行と
なっている。調圧エレメント甚の湯側弁体３１部やピス
トン３３部も膨張するが、シリンダー２３と同種の樹脂
で成形されていると、大きく間隙が異なって来ることは
ない。As the hot water flows, the cylinder 23 expands, but the O-rings 25, 26, 27 are compressed and absorb this.
Even if it expands to the maximum, the cylinder outer circumference 24 will not come into contact with the inner circumference 30 of the valve frame body 20, and the cylinder 23, which has become tapered due to expansion, will become particularly large at the inner circumference 28 on the hot water side. Therefore, they are substantially parallel during operation. Although the pressure regulating element, the hot water side valve body 31 section, and the piston 33 section also expand, if they are molded from the same type of resin as the cylinder 23, the gaps will not differ greatly.
使用中に湯あるいは水の１次圧が変動すると、調圧エレ
メント甚の２次圧に差ができるため、瞬時にこれを修正
する方向に動作する。だが、調圧エレメント甚は樹脂を
主体で作ってあって軽量であるため、慣性によってちょ
うど良いバランス点を行き過ぎてしまうことがなく、過
渡変動時の温度変動が小さくなる。慣性による悪影響は
ダンパー３４によっても改善されている。If the primary pressure of hot water or water fluctuates during use, there will be a significant difference in the secondary pressure of the pressure regulating element, so it will instantly work to correct this. However, since the pressure regulating element is mainly made of resin and is lightweight, inertia prevents it from going too far beyond the ideal balance point, and temperature fluctuations during transient fluctuations are reduced. The adverse effects of inertia are also improved by the damper 34.
また、湯の中の気泡が混って供給されて来たり、湯側圧
力が極端に水側圧力よりも高くて、湯側弁体３１部にお
いて多少気泡が発生しかけても、ダンパー３４の効果に
よって振動の発生が防止される。In addition, even if bubbles are mixed in the hot water and the hot water is supplied, or the pressure on the hot water side is extremely higher than the pressure on the water side, and some air bubbles are generated at the valve body 31 on the hot water side, the effect of the damper 34 is This prevents vibration from occurring.
更に、特に調圧ニレメンＨｆｉの軽量化により、重量が
重い時に起こり易かった振動時の慣性によって、湯側か
２．激に絞られ過ぎ気泡が余計に発生し、更にこれによ
る圧力減少によって余計に振動される自動的な現象が防
止されている。Furthermore, due to the weight reduction of the pressure regulating Niremen Hfi, the inertia during vibration, which was more likely to occur when the weight was heavy, caused the hot water side to 2. This prevents an automatic phenomenon in which air bubbles are generated due to excessive squeezing, and further vibrations occur due to the pressure reduction caused by this.
また、湯や水の中に含まれているスケール成分について
は、特に高温側が付き易いものであるが、調圧エレメン
ト３７やシリンダー２３が樹脂でできているため電位を
生ぜず、イオン化されたスケール成分が付着しない、ま
た、調圧ニレメン＋４１の回転により先でも述べたよう
に一層付着しにくいものとなっている。更に、ピストン
３３部も樹脂製であるため熱伝導率が低く、湯側と水側
を仕切るピストン３３を通して特に給湯停止時に水側に
熱が伝わり、水温を上げてしまい、再給湯時に一時的に
熱い混合湯が供給されることの防止が図れている。In addition, scale components contained in hot water tend to stick especially on the high temperature side, but since the pressure regulating element 37 and cylinder 23 are made of resin, they do not generate an electric potential and ionized scale components Components do not adhere, and as mentioned earlier, the rotation of the pressure regulating element +41 makes it even more difficult for the components to adhere. Furthermore, since the piston 33 is also made of resin, its thermal conductivity is low, and heat is transferred to the water side through the piston 33, which separates the hot water side from the water side, especially when the hot water supply is stopped, raising the water temperature, and causing temporary damage when refilling hot water. This prevents hot mixed water from being supplied.
この調圧弁部で２次圧を等圧にされた湯と水は、混合弁
４５部で混合比率の調整が行なわれ、混合湯温がサーミ
スタ４６で検出されてフィードバック制御され、流量が
流量調節部５０で調節されて給湯対象へ供給される。The mixing ratio of hot water and water whose secondary pressures have been made equal in this pressure regulating valve section is adjusted in a mixing valve 45 section, and the mixed water temperature is detected by a thermistor 46 and feedback controlled, and the flow rate is adjusted. The hot water is regulated by the section 50 and supplied to the object of hot water supply.
特に本実施例のように、電気的に混合湯温を調節する場
合は、サーミスタ４６．制御器４８．モータ４９等のお
くれ要素が大きいため、調節弁がないと過渡変動時の混
合湯温変動が大きくなって実用に供せない。In particular, when the mixed water temperature is electrically adjusted as in this embodiment, the thermistor 46. Controller 48. Since the delay factors of the motor 49 and the like are large, if there is no control valve, the mixed water temperature fluctuations during transient fluctuations will be large and cannot be put to practical use.
第３図に本発明の第２の実施例を示す。FIG. 3 shows a second embodiment of the invention.
第１の実施例と異なる点は、調節エレメント甚′が形状
が異なり、ダンパーがなく芯材なしの全て樹脂製である
点、これに伴ないシリンダー２３′の形状も異なる点、
混合弁４５′が手動の弁である点等であり、基本的な動
作は第１の実施例と同一であるので詳しい説明は割愛す
る。The difference from the first embodiment is that the shape of the adjustment element jin' is different, there is no damper and there is no core material, and it is entirely made of resin, and the shape of the cylinder 23' is also different accordingly.
The mixing valve 45' is a manual valve, and the basic operation is the same as in the first embodiment, so a detailed explanation will be omitted.
また、この第２の実施例の他にも調圧弁の構成としては
各種の方法が考えられるが、ピストン式すべての方式に
亘って、本発明の思想は適用できるものである。In addition to this second embodiment, various methods of configuring the pressure regulating valve can be considered, but the idea of the present invention can be applied to all piston type systems.
発明の効果
以上で述べたように、本発明の自動調圧弁によれば次の
ような効果が得られる。Effects of the Invention As described above, the automatic pressure regulating valve of the present invention provides the following effects.
（１） ｍ圧エレメントが樹脂製で軽量であるため、
過渡変動時に慣性によってバランス点を行き過ぎてしま
うことが防止され、特性の向上が図れる。(1) Since the m-pressure element is made of resin and is lightweight,
During transient fluctuations, inertia prevents the balance point from being exceeded, and the characteristics can be improved.
また、シリンダーも外周部に可圧縮性のシール材を設け
て支持され、かつ弁框体との間隙もシリンダー外周部の
熱膨張を見込んだ寸法に設定されているため、膨張係数
の大きい樹脂製としても性能や信絨性面での問題を生じ
なく、成型化することにより加エエ敗の低減が図れる。In addition, the cylinder is also supported with a compressible sealing material on the outer periphery, and the gap with the valve frame is set to take into account the thermal expansion of the outer periphery of the cylinder. However, there are no problems in terms of performance or reliability, and molding can reduce processing losses.
更に、シリンダーと調圧エレメントの樹脂化によって、
スケール成分の付着が防止でき、湯側の熱が水側に伝わ
って水温を上げてしまうような欠点も解消されるもので
ある。Furthermore, by using resin for the cylinder and pressure regulating element,
The adhesion of scale components can be prevented, and the drawbacks of heat from the hot water being transferred to the water and raising the water temperature can also be eliminated.
（２）調圧エレメントに羽根を付は回転させることによ
り、摺動摩擦の低減による特性の向上、スケールやゴミ
の付着の防止、ピストン部における高圧側から低圧側へ
の湯、水の混入の防止が図れる。(2) By attaching blades to the pressure regulating element and rotating them, it improves characteristics by reducing sliding friction, prevents scale and dirt from adhering, and prevents hot water and water from entering from the high pressure side to the low pressure side of the piston part. can be achieved.
（３） ！１１圧エレメントにダンパーを設けること
により、気泡通過時や気泡発生時の振動音の発生を防止
するとともに、過渡変動時の調圧エレメントのバランス
点行き過ぎ現象を防止し性能の向上も図れるものである
。(3)! By providing a damper on the 11-pressure element, it is possible to prevent the generation of vibration noise when bubbles pass or are generated, and also to prevent the balance point of the pressure regulating element from going too far during transient fluctuations, thereby improving performance. .
第１図は本発明の第１の実施例における自動調圧弁の断
面図、第２図は同実施例の動作比較モデル図、第３図は
同第２の実施例の断面図、第４図は従来の自動調圧弁の
断面図である。
２０、２０’・・・・・・弁框体、２１．２１’ ・・
・・・・壜入口、２２゜２２′・・・・・・水入口、２
３．２３’・旧・・シリンダー、２４゜２４′・・・・
・・外周部、２５．２６．２７．２５’ 、 ２６’
、 ２７’・・・・・・０リング（シール材）、３ｏ・
旧・・内周部、３１３１’・・・・・・湯側弁体、３２
．３２’・・・・・・水側弁体、３３゜３３′・・・・
・・ピストン、３４・・・・・・ダンパー、ｕ、ａ’
−・・・・・調圧エレメント、４３．４３’ ・・・・
・・羽根。
代理人の氏名 弁理士 粟野重孝 はか１名Ｖ′″″弁
風体
２３・−シリンダー
２５．２乙、２７・−・Ｏリンク
３ ／−Ａ炉Ｔ升体
３ど一一一水ｆＴ４？ルも
３３・−・ピストン
斜−グンバー
第２図
（′ｂ）
浮上しない場合
浮上しているｔ蚤４ト
第
図
第
図Fig. 1 is a sectional view of an automatic pressure regulating valve according to the first embodiment of the present invention, Fig. 2 is a model diagram for comparing the operation of the same embodiment, Fig. 3 is a sectional view of the second embodiment of the invention, and Fig. 4 is a sectional view of a conventional automatic pressure regulating valve. 20, 20'... Valve body, 21.21'...
...Bottle inlet, 22゜22' ...Water inlet, 2
3.23'・old...cylinder, 24°24'...
...Outer periphery, 25.26.27.25', 26'
, 27'...0 ring (sealing material), 3o.
Old: Inner circumference, 3131'...Hot water side valve body, 32
．． 32'...Water side valve body, 33°33'...
...Piston, 34...Damper, u, a'
-...Pressure regulating element, 43.43'...
...feathers. Name of agent: Patent attorney Shigetaka Awano 1 person V''''' Valve body 23 - Cylinder 25.2 Otsu, 27 - O link 3 / - A reactor T box body 3 Do111 water fT4? Le also 33 -- Piston diagonal - Gunbar Figure 2 ('b)
Claims (3)
入口を有した樹脂製のシリンダーと、このシリンダーの
外周部に設けられた可圧縮性のシール材と、前記シリン
ダーに装着され湯と水の１次圧を減圧する湯側弁体と水
側弁と湯と水の流路を仕切るピストンとを有した樹脂製
の調圧エレメントと、前記シリンダーに設けられ前記湯
側弁体と水側弁体との間隙の増減によって２次圧を調圧
する湯側弁座と水側弁座とを備え、前記弁框体の内周と
前記シリンダーの外周によって形成される間隙を熱膨張
時の前記シリンダーの膨張分以上に設定し、前記シリン
ダーの支持を前記シール材で行なった自動調圧弁。(1) A valve body, a resin cylinder provided inside the valve body and having an inlet for hot water and water, a compressible sealing material provided on the outer periphery of the cylinder, and the cylinder a pressure regulating element made of resin, which is attached to the cylinder and has a hot water side valve body that reduces the primary pressure of the hot water and the water, a water side valve, and a piston that partitions the flow path between the hot water and the water; A gap formed by the inner periphery of the valve body and the outer periphery of the cylinder, comprising a hot water side valve seat and a water side valve seat that adjust the secondary pressure by increasing or decreasing the gap between the side valve body and the water side valve body. is set to be greater than the expansion of the cylinder during thermal expansion, and the cylinder is supported by the sealing material.
調圧エレメントを回転させた特許請求の範囲第（１）項
記載の自動調圧弁。(2) The automatic pressure regulating valve according to claim (1), wherein the pressure regulating element has blades and the pressure regulating element is rotated by the flow of hot water.
水側弁体と湯と水の流路を仕切るピストンとを有した調
圧エレメントと、湯側弁体と水側弁体との間隙の増減に
よって２次圧を調圧する湯側弁座と水側弁座と、前記調
圧エンメントに設けたダンパー手段とを備えた自動調圧
弁。(3) A pressure regulating element having a valve body, a hot water side valve body that reduces the primary pressure of hot water and water, a water side valve body, and a piston that partitions a flow path between hot water and water, and a hot water side valve body An automatic pressure regulating valve comprising a hot water side valve seat and a water side valve seat that regulate secondary pressure by increasing and decreasing a gap between the water side valve body and the water side valve body, and a damper means provided in the pressure regulating element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1067051A JP2679227B2 (en) | 1989-03-17 | 1989-03-17 | Automatic pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1067051A JP2679227B2 (en) | 1989-03-17 | 1989-03-17 | Automatic pressure regulating valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02245584A true JPH02245584A (en) | 1990-10-01 |
| JP2679227B2 JP2679227B2 (en) | 1997-11-19 |
Family
ID=13333657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1067051A Expired - Fee Related JP2679227B2 (en) | 1989-03-17 | 1989-03-17 | Automatic pressure regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2679227B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010261502A (en) * | 2009-05-07 | 2010-11-18 | Man Diesel & Turbo Filial Af Man Diesel & Turbo Se Tyskland | Spool valve having less cavitation damage |
| JP2013032846A (en) * | 2012-09-13 | 2013-02-14 | Man Diesel & Turbo Filial Af Man Diesel & Turbo Se Tyskland | Spool valve with reduced cavitation damage |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60215169A (en) * | 1984-04-09 | 1985-10-28 | Matsushita Electric Ind Co Ltd | Automatic pressure regulating valve |
| JPH01295080A (en) * | 1988-05-20 | 1989-11-28 | Toto Ltd | Automatic pressure governing valve |
-
1989
- 1989-03-17 JP JP1067051A patent/JP2679227B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60215169A (en) * | 1984-04-09 | 1985-10-28 | Matsushita Electric Ind Co Ltd | Automatic pressure regulating valve |
| JPH01295080A (en) * | 1988-05-20 | 1989-11-28 | Toto Ltd | Automatic pressure governing valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010261502A (en) * | 2009-05-07 | 2010-11-18 | Man Diesel & Turbo Filial Af Man Diesel & Turbo Se Tyskland | Spool valve having less cavitation damage |
| KR101299045B1 (en) * | 2009-05-07 | 2013-08-27 | 맨 디젤 앤드 터보 필리얼 아프 맨 디젤 앤드 터보 에스이 티스크랜드 | A spool valve with reduced cavitation damage |
| JP2013032846A (en) * | 2012-09-13 | 2013-02-14 | Man Diesel & Turbo Filial Af Man Diesel & Turbo Se Tyskland | Spool valve with reduced cavitation damage |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2679227B2 (en) | 1997-11-19 |
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