JP2000130615A - Mixing proportional valve - Google Patents
Mixing proportional valveInfo
- Publication number
- JP2000130615A JP2000130615A JP10321388A JP32138898A JP2000130615A JP 2000130615 A JP2000130615 A JP 2000130615A JP 10321388 A JP10321388 A JP 10321388A JP 32138898 A JP32138898 A JP 32138898A JP 2000130615 A JP2000130615 A JP 2000130615A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- water
- hot water
- spindle
- mixing
- 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
Landscapes
- Electrically Driven Valve-Operating Means (AREA)
- Multiple-Way Valves (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、給湯器等の熱交換
器から出た湯と水との混合比を調節し、また、出湯量も
比例制御することができるようにした混合比例弁に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mixing proportional valve capable of adjusting a mixing ratio of hot water and water discharged from a heat exchanger such as a hot water supply device, and also capable of proportionally controlling the amount of hot water. .
【０００２】[0002]
【従来の技術】給湯器等の熱交換器から出た湯と水とを
混合し、適温にして供給する際には、互いに対向する２
個の流入口と各流入孔に設けた弁座、及び各流入口間に
配置した１個の出口とを備えた弁本体を有する３方弁を
用い、相対向する各流入口の弁座にそれぞれ当接する弁
を備えた弁体を弁本体内で摺動自在に設け、この弁体の
摺動により片側の弁座の開口が減少すると他側の弁座の
開口が増加するようにし、この弁体を手動のレバーやコ
ック等により作動することによって、湯と水の混合比を
調節して混合水を供給する混合弁が用いられている。2. Description of the Related Art When mixing hot water discharged from a heat exchanger such as a water heater and water at an appropriate temperature and supplying the mixed water, two opposite surfaces are used.
A three-way valve having a valve body having a plurality of inflow ports, a valve seat provided in each inflow hole, and one outlet disposed between each inflow port is used. A valve body provided with a valve that abuts each other is slidably provided in the valve body, and when the opening of one valve seat decreases due to the sliding of the valve body, the opening of the other valve seat increases. A mixing valve for supplying a mixed water by adjusting a mixing ratio of hot water and water by operating a valve body with a manual lever, a cock, or the like is used.
【０００３】上記のような混合弁を用いて、手動でその
温度を所定の値に調節することは、湯の温度変化、水量
の変化等により困難なため、これを自動的に調節するこ
とも行われており、弁本体から出る湯の温度を検出して
駆動制御されるモータを用い、モータの回転によって上
記弁体を弁本体内で摺動させたものも用いられている。Since it is difficult to manually adjust the temperature to a predetermined value using the above-described mixing valve due to a change in the temperature of hot water, a change in the amount of water, etc., it is also possible to automatically adjust the temperature. There is also used a motor that uses a motor that is driven and controlled by detecting the temperature of hot water flowing out of a valve body and that slides the valve body in the valve body by rotation of the motor.
【０００４】一方、給湯器等の熱交換器には能力の限界
が存在し、熱交換器として、あまり大きなものを用いる
ことができないときには、冬等の寒冷時に流入する水道
水の温度が低温となっている時、混合弁の湯供給側の弁
を最大に解放し、混合する水の量をゼロとしても、なお
所定の温度迄上昇しないことがある。この時、湯の温度
を上昇させるには、一定の熱量を供給している熱交換器
を通る水の量を減少することにより、熱交換器から出る
湯の温度を上昇させることができるので、上記の対策と
して、熱交換器側の流路中に比例弁としての出湯絞り弁
を設け、温度に応じて出湯量を変えるようにしている。
また、他の対策として、出湯絞り弁の弁として特殊な穴
角度のボール弁を用い、湯側の水量調整を可能としたも
のも提案されている。On the other hand, heat exchangers such as water heaters have a limited capacity, and when it is not possible to use a heat exchanger that is too large, the temperature of tap water flowing in cold weather such as winter is low. In this case, even if the valve on the hot water supply side of the mixing valve is opened to the maximum and the amount of water to be mixed is set to zero, the temperature may not rise to the predetermined temperature. At this time, in order to raise the temperature of the hot water, the temperature of the hot water exiting the heat exchanger can be raised by reducing the amount of water passing through the heat exchanger supplying a certain amount of heat, As a countermeasure, a tapping throttle valve as a proportional valve is provided in the flow path on the heat exchanger side to change the tapping amount in accordance with the temperature.
As another countermeasure, there has been proposed an apparatus using a ball valve having a special hole angle as a valve of a tapping throttle valve so that the amount of water on the hot water side can be adjusted.
【０００５】[0005]
【発明が解決しようとする課題】上記従来の装置におい
て、湯と水の混合比を調節する混合弁を設けて温度に応
じて混合比を変え、更に熱交換器側の流路中に比例弁と
しての出湯絞り弁を設け、温度に応じて出湯量を変える
ようにしたものにおいては、流路中に混合弁と出湯絞り
弁の２個のバルブを使用することになるため、設備費が
高価なものとならざるを得ない。また、上記のような特
殊な穴角度のボール弁を用い、湯側の流量調整を可能と
したものにおいては、このボール弁で絞られる流体の音
が大きく、騒音を発生するとともに、湯と水の混合特性
や水量特性を変更したいとき、その調整がきわめて困難
であるという欠点を有していた。上記欠点を解消するた
め、流体の管路を並列に複数設けて流量を大きくするこ
とも考えられるが、その際には機構が複雑になり、その
設備費も高価なものとなる。In the above conventional apparatus, a mixing valve for adjusting the mixing ratio of hot water and water is provided to change the mixing ratio in accordance with the temperature, and a proportional valve is provided in the flow path on the heat exchanger side. In the case where the tapping throttle valve is provided and the tapping amount is changed in accordance with the temperature, two valves, a mixing valve and a tapping throttle valve, are used in the flow path, so that the equipment cost is high. It has to be something. Also, in the case of using a ball valve having a special hole angle as described above and enabling the flow rate adjustment on the hot water side, the sound of the fluid throttled by the ball valve is loud, generating noise, and When it is desired to change the mixing characteristics and the water amount characteristics of these, there is a disadvantage that the adjustment is extremely difficult. In order to solve the above-mentioned disadvantage, it is conceivable to increase the flow rate by providing a plurality of fluid conduits in parallel, but in that case, the mechanism becomes complicated and the equipment cost becomes expensive.
【０００６】したがって、本発明は、湯と水を混合する
混合弁と流出湯量を比例制後する出湯絞り弁の機能を１
つの装置により行うことができるようにし、簡単な構成
で安価な装置とすることができる混合比例弁を提供する
ことを目的とする。Accordingly, the present invention provides a function of a mixing valve for mixing hot water and water and a tapping throttle valve for proportionally controlling the amount of hot water flowing out.
It is an object of the present invention to provide a mixing proportional valve which can be performed by two devices, and which can be an inexpensive device with a simple configuration.
【０００７】[0007]
【課題を解決するための手段】本発明は、上記課題を解
決するため、駆動装置により回転及び軸方向に摺動自在
に設けられ、出湯絞り弁、湯弁、カムを備えたスピンド
ルと、混合水出口、湯入口、水入口、該混合水出口に設
けた第１弁座、第１弁座に対向して湯入口に固定した弁
保持部に設けた第２弁座、水入口に設けた第３弁座を備
えた弁本体と、弁本体に対して摺動自在に支持され一端
がスピンドルのカムに当接するように付勢されたロッ
ド、弁部を備えた水弁とにより混合比例弁を構成したも
のである。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a spindle provided with a tapping throttle valve, a tap valve and a cam, which is slidably and rotationally slidable by a driving device. A water outlet, a hot water inlet, a water inlet, a first valve seat provided at the mixed water outlet, a second valve seat provided at a valve holding portion fixed to the hot water inlet opposite to the first valve seat, and provided at the water inlet. A mixing proportional valve comprising a valve body having a third valve seat, a rod slidably supported on the valve body and one end of which is urged to abut a cam of the spindle, and a water valve having a valve portion; It is what constituted.
【０００８】[0008]
【作用】本発明は、上記のように構成したので、駆動装
置によりスピンドルが回転するとカムが回転し、それに
よりカムに当接する水弁が開閉すると共に、同時にスピ
ンドルが軸方向に摺動することにより湯弁が連動して開
閉し、更に、出湯絞り弁も連動して開閉させることがで
きる。スピンドルの上記作動により、最初水と湯の混合
比を変えて湯の温度制御を行い、水の量がゼロとなった
後には出湯絞り弁により出湯量を比例的に変え、出湯温
度を制御させる作動を行うことができるようになり、湯
と水の混合比の調整弁と、出湯流量の比例制御を行う出
湯絞り弁との機能を、１つの装置により簡単な構成で達
成することができ、安価な混合比例弁装置とすることが
できる。According to the present invention, when the spindle is rotated by the driving device, the cam rotates, whereby the water valve contacting the cam opens and closes, and at the same time, the spindle slides in the axial direction. Accordingly, the hot water valve can be opened and closed in conjunction with each other, and the tapping throttle valve can also be opened and closed in conjunction with each other. By the above operation of the spindle, the temperature of the hot water is controlled by changing the mixing ratio of the hot water and the hot water at first, and after the water amount becomes zero, the hot water amount is changed proportionally by the hot water throttle valve to control the hot water temperature. The operation can be performed, and the function of the adjusting valve for the mixing ratio of hot water and water and the function of the tapping throttle valve for performing proportional control of the tapping flow rate can be achieved by a single device with a simple configuration. An inexpensive mixing proportional valve device can be provided.
【０００９】[0009]
【発明の実施の形態】本発明の実施例を図面に沿って説
明する。図１は本発明の実施例の断面図であり、弁本体
１には図中下方で曲折されて横方向を向いている混合水
出口２と、混合水出口２の開口方向と反対方向に開口し
ている水入口３と、弁本体の上方に設けられ図１におい
て一部正面図として図示されている湯入口４とを備えて
いる。弁本体１には、また、混合水出口２部分に第１弁
座５が、湯入口４部分に第２弁座６が、水入口３部分に
第３弁座７が、各々形成されており、第１弁座５と第１
弁座に対向して湯入口に固定した弁保持部に設けた第２
弁座６は互いに対向しているとともに、第３弁座７は弁
本体１の外部に向けて形成されている。弁本体１の上端
部にはパルスモータ８をボルトにより固定し、パルスモ
ータ８から下方に延びる弁保持部１０は、弁本体１の上
端開口から弁本体内に挿入されている。Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of an embodiment of the present invention, in which a valve body 1 has a mixed water outlet 2 bent downward in the figure and facing in a lateral direction, and an opening in a direction opposite to the opening direction of the mixed water outlet 2. 1 and a hot water inlet 4 provided above the valve body and partially shown in front view in FIG. In the valve body 1, a first valve seat 5 is formed in the mixed water outlet 2 portion, a second valve seat 6 is formed in the hot water inlet 4 portion, and a third valve seat 7 is formed in the water inlet 3 portion. , The first valve seat 5 and the first
A second valve provided on a valve holder fixed to the hot water inlet opposite to the valve seat;
The valve seats 6 face each other, and the third valve seat 7 is formed toward the outside of the valve body 1. A pulse motor 8 is fixed to the upper end of the valve main body 1 with bolts, and a valve holding portion 10 extending downward from the pulse motor 8 is inserted into the valve main body from the upper end opening of the valve main body 1.
【００１０】水入口３の側部には管継手９を固定してお
り、図７の流体回路図にも示すように、管継手９の下端
部に設けた水流入孔１２には水道管と連結される水流入
口１２が、上端部には温水器の熱交換器４２と連結され
る熱交換器側出口１３が、また側部には、前記水入口３
と連結され、水流入口１２からの水を、熱交換器４２を
バイパスして混合比例弁１８に供給する水バイパス口１
４を備えている。なお、図１の実施例においては、流量
計１５が水流入口１２の近傍に設けられ、水流を受けて
回転する羽根１６に設けた永久磁石の回転を、管継手９
の外部に固定したリードスイッチ、ホール素子等により
検出し、総供給水量を検出している。A pipe joint 9 is fixed to the side of the water inlet 3, and as shown in the fluid circuit diagram of FIG. A water inlet 12 is connected, a heat exchanger side outlet 13 is connected at an upper end to a heat exchanger 42 of a water heater, and a water inlet 3 is provided at a side.
And a water bypass port 1 that supplies water from the water inlet 12 to the mixing proportional valve 18 while bypassing the heat exchanger 42.
4 is provided. In the embodiment shown in FIG. 1, a flow meter 15 is provided in the vicinity of the water inlet 12, and the rotation of the permanent magnet provided on the blade 16 which receives the water flow and rotates the pipe joint 9.
The total amount of supplied water is detected by a reed switch, a Hall element, etc. fixed outside.
【００１１】弁本体１内には、スピンドル１１が上下動
可能で且つ回転可能に収納されており、スピンドル１１
の上端部に形成した連結部１７は、パルスモータ８の駆
動軸と連結している。スピンドル１１の連結部１７は雄
型セレーションが形成され、駆動軸の下端に形成された
略同形状の雌型セレーションにより、上下方向に摺動自
在に嵌合している。スピンドル１１の連結部１７の下部
外周には雄ねじ部２１が形成され、弁保持部１０の内周
に形成した雌ねじ部２２と螺合している。雄ねじ部２１
と雌ねじ部２２のねじのピッチは、図示実施例において
は、スピンドルが１８０度乃至３６０度回転することに
より、スピンドル１１の所定の上下動ストロークの全て
が行われる程度に設定している。A spindle 11 is accommodated in the valve body 1 so as to be vertically movable and rotatable.
Is connected to the drive shaft of the pulse motor 8. The connecting portion 17 of the spindle 11 is formed with a male serration, and is fitted slidably in the vertical direction by a female serration of substantially the same shape formed at the lower end of the drive shaft. A male screw part 21 is formed on the outer periphery of the lower part of the connecting part 17 of the spindle 11 and is screwed with a female screw part 22 formed on the inner periphery of the valve holding part 10. Male thread 21
In the illustrated embodiment, the screw pitch of the female screw portion 22 is set such that all the predetermined vertical movement strokes of the spindle 11 are performed by rotating the spindle by 180 degrees to 360 degrees.
【００１２】スピンドル１１の下端には、前記混合水出
口２部分に設けた第１弁座５に対向して、弁からの出湯
量を調量する出湯絞り弁２３が形成され、スピンドル１
１の中間部には湯入口４部分に設けた湯調量弁としての
湯弁２４が形成されており、出湯絞り弁２３は下方に、
また、湯弁２４は上方に各々弁座当接部分が形成されて
いる。スピンドル１１の出湯絞り弁２３と湯弁２４間の
軸にはカム２５が形成され、このカムは図中実施例のも
のにおいては最大高さ部分から基円部迄略１２０度程度
に形成されている。At the lower end of the spindle 11, a tapping throttle valve 23 for adjusting the amount of tapping from the valve is formed opposite to the first valve seat 5 provided at the mixed water outlet 2.
A hot water valve 24 as a hot water metering valve provided at the hot water inlet 4 is formed at an intermediate portion of the hot water inlet 1, and the tapping throttle valve 23 is located downward,
Further, the hot water valve 24 is formed with a valve seat abutting portion on each upper side. A cam 25 is formed on a shaft of the spindle 11 between the tapping throttle valve 23 and the tap valve 24. The cam 25 is formed at about 120 degrees from the maximum height portion to the base circle portion in the embodiment shown in the drawing. I have.
【００１３】弁本体１の水入口３における第３弁座７部
分は、図２に一部拡大図として示しているように、中心
部にガイド孔２６を備えた軸支部２７を複数の支持体２
８によって支持して設けており、支持体２８の周囲には
水が自由に流通できる流通孔３０が形成されている。軸
支部２７のガイド孔２６には、水調量弁としての水弁２
９のロッド１９が摺動自在に支持されており、水弁２９
はロッド１９と一体に形成され、その周囲にには弁部３
１を形成している。The third valve seat 7 at the water inlet 3 of the valve body 1 is provided with a plurality of support parts 27 having a guide hole 26 at the center as shown in a partially enlarged view in FIG. 2
8, a flow hole 30 through which water can freely flow is formed around the support 28. A water valve 2 as a water metering valve is provided in the guide hole 26 of the shaft support 27.
9 is slidably supported, and the water valve 29
Is formed integrally with the rod 19, and the valve portion 3
1 are formed.
【００１４】水弁２９のロッド１９の一端は、図１及び
図２に示す状態においてスピンドル１１に設けたカム２
５に当接し、また、ロッド１９の他端部には逆止弁３３
を摺動自在に支持している。逆止弁３３の背面３４と、
これに対向する水弁２９の背面３５間にはスプリング３
６が縮設され、それにより水弁２９は第３弁座７に、ま
た逆止弁３３は管継手９の水バイパス孔１４に形成した
第４弁座３７に各々当接する方向に付勢されている。な
お、図１及び図２に示す状態においては、スプリング３
６により逆止弁３３は第４弁座３７に押しつけられ、水
弁２９はこれと一体に形成されたロッド１９がカム２５
に押しつけられて、水弁２９は第３弁座７から離れてい
る。One end of the rod 19 of the water valve 29 is connected to the cam 2 provided on the spindle 11 in the state shown in FIGS.
5 and the other end of the rod 19 has a check valve 33
Is slidably supported. A back surface 34 of the check valve 33;
A spring 3 is provided between the back surface 35 of the water valve 29 and the water valve 29.
6, the water valve 29 is urged in the direction of contacting the third valve seat 7, and the check valve 33 is urged in the direction of contacting the fourth valve seat 37 formed in the water bypass hole 14 of the pipe joint 9, respectively. ing. In the state shown in FIGS. 1 and 2, the spring 3
6, the check valve 33 is pressed against the fourth valve seat 37, and the water valve 29 is connected to the rod 25 integrally formed with the cam 25.
, The water valve 29 is separated from the third valve seat 7.
【００１５】上記のように構成した混合比例弁１８が図
１に示す状態においては、スピンドル１１は最も上方に
移動しており、この時、スピンドル１１に形成したカム
２５は、水弁２９のロッド１９に対して最も突出した位
置の部分で停止している。それにより、スピンドルの出
湯絞り弁２３は全開となり、湯弁２４は第２弁座６に密
着して全閉となり、また、ロッド１９がカム２５により
スプリング３６に抗して押され、水弁２９の弁部３１は
第３弁座７から最も離れて全開となっている。この時、
混合水出口２に連結した給湯管４１の下流において湯の
使用状態にないと、混合水出口２から水は流出せず、ま
た、管継手９の内部と弁本体１の内部とは等圧のため、
逆止弁３３は、スプリング３６に押圧されて第４弁座３
７と密着している。この逆止弁３３は、給湯機使用直
後、熱交換器の中には、余熱で温度が上昇した高温の湯
が存在し、この湯がバイパスを通じて対流し、熱交換器
の中の湯温が低下するのを防ぐことができる。When the mixing proportional valve 18 constructed as described above is in the state shown in FIG. 1, the spindle 11 is moved to the uppermost position. At this time, the cam 25 formed on the spindle 11 It stops at the position of the most protruding position with respect to 19. Accordingly, the tapping throttle valve 23 of the spindle is fully opened, the hot water valve 24 is in close contact with the second valve seat 6 and is fully closed, and the rod 19 is pressed against the spring 36 by the cam 25, and the water valve 29 is pressed. The valve portion 31 is the farthest from the third valve seat 7 and is fully open. At this time,
If the hot water is not used downstream of the hot water supply pipe 41 connected to the mixed water outlet 2, water will not flow out of the mixed water outlet 2, and the inside of the pipe fitting 9 and the inside of the valve body 1 will be at equal pressure. For,
The check valve 33 is pressed by the spring 36 and the fourth valve seat 3
7 is in close contact. Immediately after the use of the water heater, the check valve 33 has a high-temperature hot water whose temperature has increased due to residual heat in the heat exchanger. The hot water convects through the bypass, and the temperature of the hot water in the heat exchanger decreases. It can be prevented from lowering.
【００１６】図１に示す状態から給湯管４１において湯
の使用状態となると、水流入孔１２から管継手９内に水
が流入し、一方は管継手９の熱交換器側出口１３から熱
交換器４２内に流入し、他方は水バイパス孔１４からそ
の水道圧によって逆止弁３３をスプリング３６に抗して
解放し、水弁２９の周囲を通って流通孔３０から弁本体
１内に流入する。この状態は図３に示されている。この
時、熱交換器側に流入した水は、湯弁２４が閉じられて
いるので混合比例弁１８内に流入することはなく、した
がって、この状態で混合水出口側の図示されない弁が解
放されると、全開している水弁２９からの水のみが混合
比例弁１８から流出する。これは、図６において、パル
スモータ８の駆動パルスが零で、モータが作動していな
いＡの状態として示されている。When hot water is used in the hot water supply pipe 41 from the state shown in FIG. 1, water flows into the pipe joint 9 from the water inflow hole 12, and one of the heat exchanges is performed from the heat exchanger side outlet 13 of the pipe joint 9. The water flows into the valve 42, and the other releases the check valve 33 from the water bypass hole 14 against the spring 36 by the tap water pressure, flows around the water valve 29, and flows into the valve body 1 from the flow hole 30. I do. This state is shown in FIG. At this time, the water that has flowed into the heat exchanger does not flow into the mixing proportional valve 18 because the hot water valve 24 is closed. Therefore, in this state, a valve (not shown) on the mixed water outlet side is opened. Then, only the water from the fully opened water valve 29 flows out of the mixing proportional valve 18. This is shown in FIG. 6 as a state A in which the driving pulse of the pulse motor 8 is zero and the motor is not operating.
【００１７】次いで、パルスモータ８に駆動パルスを供
給すると、モータの駆動軸が回転し、この駆動軸の雌型
セレーション２０に挿入されているスピンドル１１の雄
型セレーションを備えた連結部１７の連結によりスピン
ドル１１は回転する。セレーション２０とスピンドル１
１の連結部とは回転不能で且つ上下動自由に連結されて
いるので、弁保持部１０に形成した雌ねじ部２２とスピ
ンドル１１の雄ねじ部２１との螺合によってスピンドル
１１は降下し、湯弁２４は第２弁座６から離れて弁を徐
々に開き始める。また、スピンドル１１の回転により水
弁２９のロッド１９に当接するカム２５の高さは低くな
るので、水弁２９は水道圧を背面３５に受け、また水流
の動圧によって、更にスプリング３６の押圧力によりカ
ム２５の表面に沿ってスピンドル１１側に移動し、水弁
２９の弁部３１は第３弁座７側に移動し、閉弁作用をな
す。このような作動はパルスモータへのパルスの増加と
ともに行われ、混合比例弁流量特性を示す図６におい
て、ＡからＢのように推移する。すなわち、水は水弁２
９により最初急激に絞られ、その後徐々にその変化は少
なくなり、一方、湯は湯弁２４により最初徐々に開放
し、その後開放の変化は少なくなる。その結果、湯と水
の混合した混合水の流量は図中破線で示すように変化す
るが、熱交換器に与える熱量が一定であるので、熱交換
器に流入する水量が減少して湯の温度が上昇しても、そ
の分だけ水の量が多くなるので混合水の温度は変わら
ず、逆に、熱交換器に流入する水量が増加して湯の温度
が低下しても、その分だけ水の量が減少するので混合水
の温度は変わらず、いずれにしても混合水の温度は一定
となる。Next, when a driving pulse is supplied to the pulse motor 8, the driving shaft of the motor rotates, and the connecting portion 17 having the male serration of the spindle 11 inserted into the female serration 20 of the driving shaft is connected. As a result, the spindle 11 rotates. Serration 20 and spindle 1
1 is non-rotatably connected to the connecting portion 1 so that the female screw portion 22 formed on the valve holding portion 10 and the male screw portion 21 of the spindle 11 are screwed down. Reference numeral 24 separates from the second valve seat 6 and starts to gradually open the valve. Further, since the height of the cam 25 abutting on the rod 19 of the water valve 29 is reduced by the rotation of the spindle 11, the water valve 29 receives the tap water pressure on the back surface 35, and the dynamic pressure of the water flow further pushes the spring 36. The pressure moves along the surface of the cam 25 to the spindle 11 side, and the valve portion 31 of the water valve 29 moves to the third valve seat 7 side to perform a valve closing action. Such an operation is performed as the number of pulses to the pulse motor increases, and transitions from A to B in FIG. 6 showing the mixing proportional valve flow rate characteristic. That is, the water is the water valve 2
9, the change is gradually reduced at first, and then the change gradually decreases, while the hot water is first gradually opened by the hot water valve 24, and thereafter, the change of the opening is reduced. As a result, the flow rate of the mixed water, which is a mixture of hot water and water, changes as shown by the broken line in the figure. However, since the amount of heat applied to the heat exchanger is constant, the amount of water flowing into the heat exchanger decreases, and Even if the temperature rises, the amount of water increases accordingly, so the temperature of the mixed water does not change, and conversely, even if the amount of water flowing into the heat exchanger increases and the temperature of the hot water decreases, Therefore, the temperature of the mixed water does not change, and the temperature of the mixed water becomes constant in any case.
【００１８】図６において、パルスモータ８へのモータ
駆動パルスがＡからＣまでの間にスピンドル１１は最大
で３６０度回転することとなるので、図６のように作動
する実施例においては、ＡからＢの間をスピンドルが１
２０度以内で作動するように設定している。パルスモー
タ６への駆動パルスの供給により、スピンドル１１は上
記のように回転及び降下を行い、図示実施例のものにお
いては、上記のようにモータ駆動パルスがＢにおいて、
カム２５は最も低い基円部分に達し、この時水弁２９の
弁部３１は第３弁座７に密着し、水の供給を停止する。
一方、湯弁２４はこれ以上開放しても流量が増加しない
実質的な最大開度に達している。また、出湯絞り弁２３
は次第に第１弁座５に近づくが、第１弁座５からは充分
に遠いので、実質的な弁作動は行われず、閉弁作用は行
わない。各弁のこの位置は図４に示され、また、図６に
おいてＢの位置として示されている。即ち、図６におい
て、水は水弁全閉により水の流量はゼロとなり、湯は湯
弁がこれ以上開放しても流量が増加しない実質的な全開
により、水弁と湯弁によっては流量の変化しない領域に
入る。なお、逆止弁３３はオリフイス３２を流れる水流
によりスプリング３６に抗して第４弁座と離れて弁を開
放している。In FIG. 6, the spindle 11 rotates 360 degrees at the maximum between the motor driving pulses to the pulse motor 8 from A to C. Therefore, in the embodiment operating as shown in FIG. Spindle is between 1 and B
It is set to operate within 20 degrees. By supplying the drive pulse to the pulse motor 6, the spindle 11 rotates and descends as described above. In the embodiment shown in the drawing, when the motor drive pulse is B as described above,
The cam 25 reaches the lowest base circle portion. At this time, the valve portion 31 of the water valve 29 comes into close contact with the third valve seat 7 and stops supplying water.
On the other hand, the hot water valve 24 has reached a substantial maximum opening at which the flow rate does not increase even if it is opened further. Also, tapping throttle valve 23
Gradually approaches the first valve seat 5, but is sufficiently far from the first valve seat 5, so that substantial valve operation is not performed and valve closing operation is not performed. This position of each valve is shown in FIG. 4 and in FIG. 6 as position B. That is, in FIG. 6, the flow rate of the water becomes zero due to the water valve being fully closed, and the flow rate of the hot water depends on the water valve and the hot water valve. Enter a region that does not change. The check valve 33 is separated from the fourth valve seat by a water flow flowing through the orifice 32 and opens against the spring 36 against the spring 36.
【００１９】更にパルスモータへ駆動パルスを供給する
と、水弁の全閉状態、及び湯弁の実質的な全開の上記状
態は変化せず、それに対して、出湯絞り弁２３が第１弁
座５に近接するため、混合水出口２から水が混合してい
ない出湯量は次第に低下する。これは図６においてＢか
らＣまでの状態であり、パルスモータへの駆動パルス数
と混合水の変化は比例関係にあり、比例弁として作用す
る。最終的には、図５に示すように、出湯絞り弁２３は
第１弁座５に密着し、混合水出口からの流量は零とな
る。また、この時カム２５は、少なくとも未だ水弁２９
のロッド１９に乗り上げることはなく、したがって図６
におけるＡからＣまでの間は、スピンドル１１の回転で
は３６０度以内であり、この３６０度以内の回転の間に
スピンドル１１は湯弁の全閉状態から出湯絞り弁の全閉
状態までの全行程を移動する。Further, when a drive pulse is supplied to the pulse motor, the above-mentioned state of the fully closed state of the water valve and the substantially fully opened state of the hot water valve do not change. , The amount of hot water in which water is not mixed from the mixed water outlet 2 gradually decreases. This is the state from B to C in FIG. 6, and the number of drive pulses to the pulse motor and the change in the mixed water are in a proportional relationship, and act as a proportional valve. Finally, as shown in FIG. 5, the tapping throttle valve 23 comes into close contact with the first valve seat 5, and the flow rate from the mixed water outlet becomes zero. At this time, the cam 25 is at least still mounted on the water valve 29.
Does not ride on the rod 19 of FIG.
In the range from A to C, the rotation of the spindle 11 is within 360 degrees. During the rotation within 360 degrees, the spindle 11 travels from the fully closed state of the hot water valve to the fully closed state of the tapping throttle valve. To move.
【００２０】水弁の全開、湯弁の全閉状態からの上記作
動において、図６におけるＡ−Ｂ間は、モータへの駆動
パルスを変化しても湯と水の混合水の量には多少の変動
はあるものの大きな変化はない。一方、給湯器の使用直
後で熱交換器の中に高温の湯が存在し、更に余熱で温度
が上昇していると、その温度を検知してパルスモータへ
のパルスの増減制御が行われ、常時熱交換器の温度に応
じた混合状態となるように待機しているので、どのよう
な時に栓を開放して湯を使用しても、混合湯は一定温度
を維持することができる。したがって、シャワーの温度
が熱くなったり冷たくなったりする「冷水サンドイッチ
現象」を解消することができる。したがって、混合水の
温度を検出し、その出力に応じてモータへの駆動パルス
を制御することにより、混合水の量は大きな変化なし
に、混合水の温度を所定の温度に維持することができ
る。In the above-described operation from the fully opened state of the water valve and the fully closed state of the hot water valve, the amount of the mixed water of the hot water and the water is slightly changed between AB in FIG. 6 even if the drive pulse to the motor is changed. Although there are fluctuations, there is no major change. On the other hand, if hot water is present in the heat exchanger immediately after using the water heater and the temperature is rising due to residual heat, the temperature is detected and pulse increase / decrease control for the pulse motor is performed. Since the mixer always stands by so as to be in a mixed state according to the temperature of the heat exchanger, the mixed hot water can maintain a constant temperature regardless of the time when the plug is opened and hot water is used. Therefore, the "cold water sandwich phenomenon" in which the temperature of the shower becomes hot or cold can be eliminated. Therefore, by detecting the temperature of the mixed water and controlling the drive pulse to the motor according to the output, the amount of the mixed water can be maintained at a predetermined temperature without a large change in the amount of the mixed water. .
【００２１】また図６のＢ−Ｃ間は、モータへの駆動パ
ルスの増加に比例して出湯流量は減少し、常時一定の熱
量を与えている熱交換器へ供給される水の量が減少する
ため、熱交換器からの湯の温度は上昇する。このＢとＣ
間においては、モータへの駆動パルスを減少すると、当
然上記と逆の作用をなし、混合水の温度は低下する。し
たがって、例えば冬季において、湯の比率を最大にし、
すべて湯の状態にしても、なお混合水が充分な温度に達
しないときにおいて、本発明では、モータへの駆動パル
スを更に増大することにより出湯量は低下するものの、
出湯温度は次第に上昇し、所定の希望温度とすることが
できる。そのため、この間においても、出湯温度を検出
し、その出力に応じてモータへの駆動パルスを制御する
ことにより、出湯温度を所定の温度に維持することが可
能となる。In addition, between B and C in FIG. 6, the flow rate of tapping water decreases in proportion to the increase of the drive pulse to the motor, and the amount of water supplied to the heat exchanger that always gives a constant amount of heat decreases. Therefore, the temperature of the hot water from the heat exchanger rises. This B and C
In the meantime, if the number of drive pulses to the motor is reduced, the operation is naturally reversed, and the temperature of the mixed water decreases. Therefore, for example, in winter, maximize the proportion of hot water,
In the present invention, when the mixed water still does not reach a sufficient temperature even in the state of all hot water, in the present invention, although the amount of hot water is reduced by further increasing the drive pulse to the motor,
The tapping temperature gradually rises to a predetermined desired temperature. Therefore, even during this time, the tapping temperature can be maintained at a predetermined temperature by detecting the tapping temperature and controlling the drive pulse to the motor according to the output.
【００２２】本発明は上記実施例として示した混合比例
弁に限られることはなく、例えば、逆止弁３３を用いる
ことがなくても、本発明の基本的な上記作動を行うこと
ができることは当然であり、逆止弁３３を設けるに際し
ても、水弁２９の上流側の任意の箇所に各種の形態で設
けることができ、また、スピンドル１１に設けるカム２
５の位置は出湯絞り弁２３と湯弁２４間に限らず任意の
位置に設けることができる。更に、スピンドル駆動装置
としてパルスモータを用いることなく、直流モータ等任
意のモータを使用することができる。The present invention is not limited to the mixing proportional valve shown in the above embodiment. For example, the basic operation of the present invention can be performed without using the check valve 33. Of course, when the check valve 33 is provided, it can be provided in various forms at any position on the upstream side of the water valve 29.
The position 5 is not limited to between the tapping throttle valve 23 and the hot water valve 24 and can be provided at any position. Further, an arbitrary motor such as a DC motor can be used without using a pulse motor as the spindle driving device.
【００２３】[0023]
【発明の効果】本発明は、上記のように構成したので、
モータによるスピンドルの回転及び上下動により、最初
は水と湯の混合比を変えて温度調節を行い、混合比が一
定となった後には、出湯絞り弁により出湯量を比例的に
変えることにより熱交換器への水量調節を行って、出湯
温度の調節を行うことができるようになり、湯と水の混
合比の調整弁と、出湯量の制御を行う出湯絞り弁との機
能を、１つの装置により簡単な構成で達成することがで
き、安価な混合比例弁とすることができる。更に、スピ
ンドルに弁を形成することにより、従来の球形弁等を用
いたものと比較して、弁を通る水流による騒音を減少さ
せることができる。The present invention is configured as described above.
At first, the temperature is adjusted by changing the mixing ratio of water and hot water by the rotation and vertical movement of the spindle by the motor, and after the mixing ratio becomes constant, the hot water is changed by proportionally changing the amount of hot water by the tapping throttle valve. By adjusting the amount of water to the exchanger, the temperature of the hot water can be adjusted, and the function of the adjusting valve for the mixing ratio of hot water and water and the function of the hot water throttle valve for controlling the amount of hot water are integrated into one. This can be achieved with a simple configuration by the device, and can be an inexpensive mixing proportional valve. Further, by forming a valve on the spindle, noise caused by water flowing through the valve can be reduced as compared with a conventional case using a spherical valve or the like.
【００２４】また、水入口に逆止弁を設けたものにおい
ては、給湯機の使用直後おいて、熱交換器の中には余熱
で温度が上昇した高温の湯が存在し、この湯がバイパス
を通じて対流し、熱交換器の中の湯温が低下することを
防ぐことができる。逆止弁をロッドの他端に摺動自在に
設けたものにおいては、逆止弁を水弁と一体化して全体
を小型にすることができる。水弁と逆止弁との間にスプ
リングを縮設し、水弁を第３弁座側に、逆止弁を第４弁
座側に付勢したものにおいては、１つのスプリングによ
り水弁と逆止弁の両弁を閉弁方向に付勢することがで
き、部品の共通化により安価なものとすることができる
ばかりでなく、小型の弁装置とすることができる。In the case where the check valve is provided at the water inlet, immediately after the use of the water heater, high-temperature water whose temperature has increased due to residual heat is present in the heat exchanger, and the hot water is bypassed. Convection through the heat exchanger to prevent the temperature of the hot water in the heat exchanger from decreasing. In the case where the check valve is slidably provided at the other end of the rod, the check valve can be integrated with the water valve to reduce the size as a whole. When the spring is contracted between the water valve and the check valve, and the water valve is urged to the third valve seat side and the check valve is urged to the fourth valve seat side, the spring is connected to the water valve by one spring. The two valves of the check valve can be urged in the valve closing direction, so that the components can be made inexpensive and the size of the valve device can be reduced by using common components.
【００２５】弁本体の水入口に管継手を連結し、両者間
に水弁と逆止弁を配置したものにおいては、弁本体と管
継手の分離部分に水弁や逆止弁等が配置され、これらの
部品のメンテナンスが容易となる。逆止弁に当接する第
４弁座を管継手に形成したものにおいては、弁本体に集
中する弁座を分散することができ、その製造が容易とな
る。管継手の水入口に流量計を固定したものにおいて
は、混合比例弁全体が流量計を含めてユニット化され、
小型化することができ、且つ製造が容易となる。スピン
ドルの出湯絞り弁と湯弁との間にカムを形成してたもの
においては、出湯絞り弁と湯弁とのスペースを有効利用
でき、混合比例弁全体を小型化することができる。スピ
ンドル駆動装置としてパルスモータを用いたものにおい
ては、湯と水の混合比制御、及び出湯絞り弁の比例制御
を正確に行うことができる。In the case where a pipe joint is connected to the water inlet of the valve body and a water valve and a check valve are arranged between the two, a water valve and a check valve are arranged at a portion where the valve body and the pipe joint are separated. Thus, maintenance of these parts becomes easy. In the case where the fourth valve seat abutting on the check valve is formed in the pipe joint, the valve seat concentrated on the valve main body can be dispersed, and the manufacture thereof becomes easy. In the case where the flow meter is fixed to the water inlet of the fitting, the entire mixing proportional valve is unitized including the flow meter,
The size can be reduced, and the manufacturing becomes easy. In the case where the cam is formed between the tapping throttle valve and the hot water valve of the spindle, the space between the tapping throttle valve and the hot water valve can be effectively used, and the entire mixing proportional valve can be reduced in size. In a device using a pulse motor as the spindle drive device, the mixing ratio control of hot water and water and the proportional control of the tapping throttle valve can be accurately performed.
【図１】本発明の実施例の非通水状態を示す断面図であ
る。FIG. 1 is a sectional view showing a non-water-passing state according to an embodiment of the present invention.
【図２】同実施例の一部拡大断面図である。FIG. 2 is a partially enlarged sectional view of the embodiment.
【図３】本発明の実施例の作動を示す要部断面図であ
り、湯弁全閉、水弁全開、出湯絞り弁全開の通水状態を
示している。FIG. 3 is a cross-sectional view of a main part showing an operation of the embodiment of the present invention, showing a water flowing state when a hot water valve is fully closed, a water valve is fully opened, and a tapping throttle valve is fully opened.
【図４】同湯弁全開、水弁全閉、出湯絞り弁全開の通水
状態を示している。FIG. 4 shows the flow state of the hot water valve fully opened, the water valve fully closed, and the tapping throttle valve fully open.
【図５】同湯弁全開、水弁全閉、出湯絞り弁全閉に非通
水状態を示している。FIG. 5 shows a non-flow state when the hot water valve is fully opened, the water valve is fully closed, and the tapping throttle valve is fully closed.
【図６】本発明の混合比例弁の流量特性図である。FIG. 6 is a flow rate characteristic diagram of the mixing proportional valve of the present invention.
【図７】本発明の混合比例弁を適用する例の流体回路図
である。FIG. 7 is a fluid circuit diagram of an example to which the mixing proportional valve of the present invention is applied.
１ 弁本体 ２ 混合水出口 ３ 水入口 ４ 湯入口 ５ 第１弁座 ６ 第２弁座 ７ 第３弁座 ８ パルスモータ ９ 管継手 １０ 弁保持部 １２ 水流入口 １３ 熱交換器側出口 １４ 水バイパス口 １５ 流量計 １６ 羽根 １１ スピンドル １７ 連結部 １８ 混合比例弁 １９ ロッド ２０ セレーション ２１ 雄ねじ部 ２２ 雌ねじ部 ２３ 出湯絞り弁 ２４ 湯弁 ２５ カム ２６ ガイド孔 ２７ 軸支部 ２８ 支持体 ２９ 水弁 ３０ 流通孔 ３１ 弁部 ３２ オリフイス ３３ 逆止弁 ３４ 背面 ３５ 背面 ３６ スプリング ３７ 第４弁座 REFERENCE SIGNS LIST 1 valve body 2 mixed water outlet 3 water inlet 4 hot water inlet 5 first valve seat 6 second valve seat 7 third valve seat 8 pulse motor 9 fitting 10 valve holding unit 12 water inlet 13 heat exchanger side outlet 14 water bypass Mouth 15 Flow meter 16 Blade 11 Spindle 17 Connecting part 18 Mixing proportional valve 19 Rod 20 Serration 21 Male screw part 22 Female screw part 23 Tapping throttle valve 24 Hot water valve 25 Cam 26 Guide hole 27 Shaft support 28 Support 29 Water valve 30 Flow hole 31 Valve 32 Orifice 33 Check valve 34 Back 35 Back 36 Spring 37 4th valve seat
Claims (10)
在に設けられ、出湯絞り弁、湯弁、カムを備えたスピン
ドルと、 混合水出口、湯入口、水入口、該混合水出口に設けた第
１弁座、第１弁座に対向して湯入口に固定した弁保持部
に設けた第２弁座、水入口に設けた第３弁座を備えた弁
本体と、 弁本体に対して摺動自在に支持され一端がスピンドルの
カムに当接するように付勢されたロッド、弁部、弁部を
バイパスするオリフイスを備えた水弁とからなることを
特徴とする混合比例弁。1. A spindle provided with a tapping valve, a tap valve, and a cam slidably and rotationally provided by a drive device, a mixed water outlet, a hot water inlet, a water inlet, and a mixed water outlet. A valve body having a first valve seat, a second valve seat provided at a valve holding portion fixed to the hot water inlet opposite to the first valve seat, and a third valve seat provided at the water inlet; A mixing proportional valve comprising: a rod slidably supported at one end thereof and biased to abut on a cam of a spindle; a valve portion; and a water valve having an orifice bypassing the valve portion.
同時にスピンドルの軸方向の移動により湯弁が開側に移
動して湯と水の混合比を変えると共に、水弁が全閉し湯
弁が実質的に全開後に出湯絞り弁が実質的な閉作動を開
始し、さらにスピンドルの軸方向の移動により出湯量を
減少するように、各弁及びカムを設定してなる請求項１
記載の混合比例弁。2. The rotation of the cam causes the water valve to move to the closing side,
At the same time, the hot water valve moves to the open side by the axial movement of the spindle, changing the mixing ratio of hot water and water, and the water valve is fully closed, and after the hot water valve is substantially fully opened, the tapping throttle valve is substantially closed. And the valves and cams are set so that the amount of hot water is reduced by moving the spindle in the axial direction.
The mixing proportional valve as described.
たは請求項２記載の混合比例弁。3. The mixing proportional valve according to claim 1, wherein a check valve is provided at the water inlet.
てなる請求項３記載の混合比例弁。4. The mixing proportional valve according to claim 3, wherein a check valve is slidably provided at the other end of the rod.
し、水弁を第３弁座側に、逆止弁を第４弁座側に付勢し
てなる請求項３または請求項４記載の混合比例弁。5. The valve according to claim 3, wherein a spring is contracted between the water valve and the check valve to urge the water valve toward the third valve seat and the check valve toward the fourth valve seat. The mixing proportional valve according to claim 4.
間に水弁と逆止弁を配置してなる請求項３乃至請求項５
のいずれかに記載の混合比例弁。6. A pipe joint is connected to a water inlet of a valve body, and a water valve and a check valve are arranged between both.
The mixing proportional valve according to any one of the above.
成してなる請求項３乃至請求項７のいずれかに記載の混
合比例弁。7. The mixing proportional valve according to claim 3, wherein a fourth valve seat abutting on the check valve is formed in the pipe joint.
請求項６または請求項８に記載の混合比例弁。8. The mixing proportional valve according to claim 6, wherein a flow meter is fixed to a water inlet of the pipe joint.
カムを形成してなる請求項１乃至請求項８のいずれかに
記載の混合比例弁。9. The mixing proportional valve according to claim 1, wherein a cam is formed between the tapping throttle valve and the hot water valve of the spindle.
タを用いてなる請求項１乃至請求項９のいずれかに記載
の混合比例弁。10. The mixing proportional valve according to claim 1, wherein a pulse motor is used as the spindle driving device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32138898A JP4058707B2 (en) | 1998-10-28 | 1998-10-28 | Mixed proportional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32138898A JP4058707B2 (en) | 1998-10-28 | 1998-10-28 | Mixed proportional valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000130615A true JP2000130615A (en) | 2000-05-12 |
| JP4058707B2 JP4058707B2 (en) | 2008-03-12 |
Family
ID=18132003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32138898A Expired - Fee Related JP4058707B2 (en) | 1998-10-28 | 1998-10-28 | Mixed proportional valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4058707B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007510863A (en) * | 2003-10-17 | 2007-04-26 | アクセス ビジネス グループ インターナショナル リミテッド ライアビリティ カンパニー | Diverter valve assembly |
| KR20160051485A (en) * | 2014-11-03 | 2016-05-11 | 이종천 | Separable type valve apparatus and air conditioner |
| CN114413032A (en) * | 2022-01-24 | 2022-04-29 | 宁波方太厨具有限公司 | Water mixing valve and zero-cold-water heater circulating system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101903488B1 (en) | 2016-11-21 | 2018-10-02 | 주식회사 기하정밀 | Valve apparatus for separating air-conditioning pipe and air-conditioning equipment |
| KR102588202B1 (en) * | 2021-12-21 | 2023-10-13 | 린나이코리아 주식회사 | Venturi equipment with cam damper |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007510863A (en) * | 2003-10-17 | 2007-04-26 | アクセス ビジネス グループ インターナショナル リミテッド ライアビリティ カンパニー | Diverter valve assembly |
| KR20160051485A (en) * | 2014-11-03 | 2016-05-11 | 이종천 | Separable type valve apparatus and air conditioner |
| KR101688692B1 (en) * | 2014-11-03 | 2017-01-02 | 이종천 | Separable type valve apparatus and air conditioner |
| CN114413032A (en) * | 2022-01-24 | 2022-04-29 | 宁波方太厨具有限公司 | Water mixing valve and zero-cold-water heater circulating system |
| CN114413032B (en) * | 2022-01-24 | 2022-11-04 | 宁波方太厨具有限公司 | Water mixing valve and zero-cold-water heater circulating system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4058707B2 (en) | 2008-03-12 |
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