JPH02146392A - Hot water and water mixing device - Google Patents

Abstract

PURPOSE:To maintain hot water temperature by forming a mixing valve, water control valve and hot water control valve, providing a mixing passage between an water valve and hot water valve and control valves between the passage of the mixing passage and control chambers, and providing a drive device for controlling mixing valves with a temperature detector in the mixing passage. CONSTITUTION:An water valve 6 and water control valve 19 for an water passage 2 and a hot water valve 10 and hot water control valve 20 for a hot water passage 3 are formed coaxially on a mixing valve 14 in which a passage 11 is formed and openings are provided at the center portion of the valve 14. An water control chamber 21 and hot water control chamber 22 are formed by providing them in a hot water and water mixing device main body 1. An water control valve 19 and hot water control valve 20 driven to open and close the passage 11 are provided in the water control chamber 21 and hot water control chamber 22, respectively near both ends of the passage 11 in the mixing valve 14. The mixing valve 14 is driven by a drive device 12 operated by signals from a temperature detector 27. Thus mixed hot water temperature is controlled by controlling the control valves of the mixing valve by the drive device so that the degree of opening of the valves is contrary to each other.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は湯水混合装置の湯温制御に関するものである。[Detailed description of the invention] Industrial applications The present invention relates to hot water temperature control for a hot water mixing device.

従来の技術 湯と水を混合し、その混合温度を温度検出器で検出した
湯と水の量を制御して適温を得る湯水混合装置において
、水圧（又は湯圧）の急変に対して過渡的にも安定な湯
温を保証するために、第２図のようにバランサ２８を設
け、湯と水通路の圧力を等圧にした構成のものがある。Conventional technology A hot water mixing device that mixes hot water and water, detects the mixing temperature with a temperature sensor, and controls the amount of hot water and water to obtain an appropriate temperature. In order to ensure a stable hot water temperature, there is a structure in which a balancer 28 is provided as shown in FIG. 2 to equalize the pressures of the hot water and the water passage.

すなわち、バランサ２８の受圧体として、水側受圧体２
９と湯側受圧体３０がある。金板りに、水道路２側の圧
力が急に高くなると、下流側２′への送る水量が増大す
るために湯温が変ることになるが、前記、受圧体に受け
る圧力が水道路２と湯通路３で異なり、湯通路側に移動
する。これにより、水通路２側の弁部３２が閉じる方向
となり、水通路の下流側２′に送る水量を増やすことな
く一定にすることができる。That is, the water side pressure receiving body 2 serves as the pressure receiving body of the balancer 28.
9 and a hot water side pressure receiving body 30. If the pressure on the water road 2 side suddenly increases, the water temperature will change because the amount of water sent to the downstream side 2' will increase, but as mentioned above, the pressure received by the pressure receiving body It is different in hot water passage 3, and moves to the hot water passage side. Thereby, the valve portion 32 on the water passage 2 side is in the closing direction, and the amount of water sent to the downstream side 2' of the water passage can be kept constant without increasing.

つまり下流側の水通路２′と湯通路３′の圧力がほぼ等
圧になるものである。In other words, the pressures in the water passage 2' and the hot water passage 3' on the downstream side are approximately equal.

そしてこのバランサ２８の下流側の水通路２゛湯通路３
′に混合弁３４を配置したものが知られている。Water passage 2 and hot water passage 3 on the downstream side of this balancer 28
It is known that a mixing valve 34 is disposed at the end.

発明が解決しようとする課題 しかしながら前述の構成では、湯と水の圧力バランス弁
（受圧体）と混合弁をそれぞれ別に設けなければならず
、構成が複雑になる。本発明は簡単な構成で湯温の安定
性の良好な混合装置を提供するものである。Problems to be Solved by the Invention However, in the above configuration, a pressure balance valve (pressure receiver) and a mixing valve for hot water and water must be provided separately, making the configuration complicated. The present invention provides a mixing device with a simple configuration and good stability of hot water temperature.

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湯水混合装置は、中
央部に開口部を有する通路を内部に設けた中空円筒状の
混合弁に、同軸上で水通路に水弁と水制御弁を、湯通路
に湯弁と湯制御弁を設け、湯水混合装置本体内に配設す
ることで水制御室と湯制御室を形成したもので、前記水
制ｊＢ室と湯制御室には、混合弁内部の通路の両端に通
路面積を開閉するように駆動する制御弁を夫々に設け、
駆動装置にて動作させている。前記駆動装置は前記混合
弁より下流側に設けた温度検出器の信号により動作する
ものである。Means for Solving the Problems In order to solve the above problems, the hot water mixing device of the present invention has a hollow cylindrical mixing valve having a passage with an opening in the center, and a water passage coaxially connected to the water passage. A water control chamber and a hot water control chamber are formed by providing a hot water valve and a hot water control valve in the hot water passage and arranging them in the main body of the hot water mixing device. The control room is provided with control valves that are driven to open and close the passage area at both ends of the passage inside the mixing valve, respectively.
It is operated by a drive device. The driving device is operated by a signal from a temperature sensor provided downstream of the mixing valve.

作用 本発明の混合装置は、上記の構成によって、湯通路に設
けた湯弁の開口面積を可変する混合弁を駆動装置によっ
て開閉の度合が背反（例えば湯側の弁部の面積を大きく
すると水側の弁部の面積が小さくなる。またはその逆）
するように水または湯制御弁を調節して混合湯温を制御
するものである。この時の動作信号は混合路の混合湯温
を温度検出器によって検出するものである。Function The mixing device of the present invention has the above-described configuration, so that the degree of opening and closing of the mixing valve that changes the opening area of the hot water valve provided in the hot water passage by the drive device is contradictory (for example, if the area of the valve part on the hot water side is increased, the water The area of the side valve part becomes smaller (or vice versa)
The temperature of the mixed hot water is controlled by adjusting the water or hot water control valve so as to The operating signal at this time is the temperature of the mixed water in the mixing path detected by a temperature detector.

実施例 以下本発明の実施例である湯水混合装置を添付図面にも
とづいて説明する。第１図（ａ）、Φ）において１は湯
水混合装置本体で水通路２と湯通路３と混合路４を有す
る。水通路２に弁座５と水弁６を、湯通路３に弁座９と
湯弁１０を設けた混合弁１４を備えている。EXAMPLE Hereinafter, a hot water mixing device which is an example of the present invention will be described based on the accompanying drawings. In FIG. 1(a), Φ), reference numeral 1 denotes a main body of a hot water mixing device, which has a water passage 2, a hot water passage 3, and a mixing passage 4. A mixing valve 14 is provided in which a water passage 2 is provided with a valve seat 5 and a water valve 6, and a hot water passage 3 is provided with a valve seat 9 and a hot water valve 10.

混合弁１４は、中空円筒状で水通路２の水平方向左右に
水弁６と水制御部１５を、湯通路３の水平方向左右に湯
弁１０と湯制御部１７を設けるとともに、中空円筒状の
混合弁１４の小径の通路１１の中央部に開口部１１’を
設けている。また、混合部１４には水道路２に水弁６と
は別に水制御部１５を水制御部１５の弁座１６にて形成
するとともに湯通路３に湯弁１０とは別に湯制御部１７
を湯制御部１７の弁座１８にて形成している。この混合
弁１４を湯水混合装置本体１に配設することにより、水
制御部１５と蕩制御部１７に水制御室２１と湯制御室２
２が形成される。この水制御室２１と湯制御室２２には
混合弁１４と同軸上で水通路２に水制御弁１９を、湯通
路３に湯制御弁２０を設けている。水制御弁１９は、駆
動軸７にて動作するもので、駆動軸軸受７′を介して駆
動ギア７″に連結されている。そして駆動装置１２のモ
ータ１３に直結した軸受２３′を有する軸２３に設けた
駆動ギア２４とかみ合う構成としている。The mixing valve 14 has a hollow cylindrical shape and has a water valve 6 and a water control section 15 on the left and right sides of the water passage 2 in the horizontal direction, a hot water valve 10 and a hot water control section 17 on the left and right sides of the hot water passage 3 in the horizontal direction, and has a hollow cylindrical shape. An opening 11' is provided in the center of the small diameter passage 11 of the mixing valve 14. Further, in the mixing part 14, a water control part 15 is formed in the water path 2 in addition to the water valve 6 at a valve seat 16 of the water control part 15, and a hot water control part 17 is formed in the hot water passage 3 in addition to the hot water valve 10.
is formed by the valve seat 18 of the hot water control section 17. By disposing this mixing valve 14 in the hot water mixing device main body 1, the water control section 15 and the hot water control section 17 can be connected to the water control chamber 21 and the hot water control chamber 2.
2 is formed. The water control chamber 21 and hot water control chamber 22 are provided with a water control valve 19 in the water passage 2 and a hot water control valve 20 in the hot water passage 3 on the same axis as the mixing valve 14. The water control valve 19 is operated by the drive shaft 7 and is connected to the drive gear 7'' via the drive shaft bearing 7'. It is configured to mesh with a drive gear 24 provided at 23.

一方、湯制御弁２０は、他方の駆動軸８にて動作するも
ので、駆動軸軸受８″を介して駆動ギア８″に連結され
ている。そして駆動装置ｆｉ　１２のモータ１３に直結
した軸受２５′を有する軸２５に設けた駆動ギア２６と
かみ合う構成としている。この駆動装置１２によって左
右回転運動により、駆動軸７．８が回転運動を行うもの
である。すなわち、第１図において右側面より見て駆動
装Ｗ１２が右回転すると駆動軸８が回転し湯制御弁２０
は左方向に移動する。On the other hand, the hot water control valve 20 is operated by the other drive shaft 8, and is connected to the drive gear 8'' via the drive shaft bearing 8''. It is configured to mesh with a drive gear 26 provided on a shaft 25 having a bearing 25' directly connected to the motor 13 of the drive device fi 12. The drive shaft 7.8 performs rotational movement by the left and right rotational movement by this drive device 12. That is, when the drive unit W12 rotates clockwise when viewed from the right side in FIG. 1, the drive shaft 8 rotates and the hot water control valve 20
moves to the left.

（この時、駆動軸７の回転により水制御弁１９は左方向
に移動する）また、駆動装置１２が左回転すると駆動軸
８が回転し湯制御弁２０は右方向に移動する（この時、
駆動軸７の回転により水制御弁１９は右方向に移動する
）ことによって水制御室２１と湯制御室２２の圧力バラ
ンスをコントロールじ水弁６と湯弁１０の通過面積を可
変することになる。(At this time, the rotation of the drive shaft 7 causes the water control valve 19 to move to the left.) Also, when the drive device 12 rotates to the left, the drive shaft 8 rotates and the hot water control valve 20 moves to the right (at this time,
By rotating the drive shaft 7, the water control valve 19 moves to the right), thereby controlling the pressure balance between the water control chamber 21 and the hot water control chamber 22, and varying the passage area between the water valve 6 and the hot water valve 10. .

また混合路４内に設けられた温度検出器２７の信号によ
って駆動される。Further, it is driven by a signal from a temperature detector 27 provided in the mixing path 4.

合板りに、水通路２の圧力と湯通路３の圧力がある一定
圧で水、又は湯が水弁６、湯弁１０に向けて送り入れら
れ、ある一定の湯温に混合し混合路４より送り出してい
る場合において、水通路２例の圧力が急に高くなったと
すると、無制御ならば水弁６より水量が増加し、混合湯
が設定よりも低下する。この時、温度検出器２７が混合
湯の温度低下を検出し、水弁６を閉じるように駆動装置
１２に信号を送り、もとの設定湯温に調節するものとな
る。これでは過渡的に圧力変動以前の湯温と違゛うこと
になり不快感を伴うものであるのに対し、本発明品の実
施例によれば、上記の場合に、水制御弁１９を有する水
制御室２１内の圧力が上昇することになり、混合弁１４
が左方向に移動し水弁６を閉じることになる。混合弁１
４の左方向への移動に伴って水制御弁１９と通路１１と
の間隙が拡がって水制御室２１内の圧力を下降させるの
で混合弁１４は水弁６を適度に閉じた位置にてバランス
する。Water or hot water is fed into the plywood at a certain pressure in the water passage 2 and the hot water passage 3 toward the water valve 6 and the hot water valve 10, and the water is mixed to a certain temperature and the water is mixed in the mixing passage 4. If the pressure in the two water passages suddenly increases when the water is being sent out at a higher rate, the amount of water will increase from the water valve 6 if no control is used, and the mixed hot water will be lower than the setting. At this time, the temperature detector 27 detects a decrease in the temperature of the mixed hot water, and sends a signal to the drive device 12 to close the water valve 6, thereby adjusting the hot water temperature to the original set temperature. In this case, the water temperature transiently differs from that before the pressure fluctuation, which causes discomfort.However, according to the embodiment of the product of the present invention, in the above case, the water control valve 19 is provided. The pressure inside the water control chamber 21 will rise, causing the mixing valve 14
moves to the left and closes the water valve 6. Mixing valve 1
4 moves to the left, the gap between the water control valve 19 and the passage 11 widens and the pressure inside the water control chamber 21 decreases, so the mixing valve 14 is balanced with the water valve 6 in the appropriately closed position. do.

従って、圧力変動以前の湯温を維持することができるも
のであり、湯温変化の不快感を極減することができる。Therefore, the water temperature before the pressure fluctuation can be maintained, and the discomfort caused by changes in the water temperature can be minimized.

次に動作について説明する。混合路４の温度が温度検出
器２７によって検出され、設定温度と比較され、駆動装
置１２に出力信号が送出される。−例として設定温度に
対して混合温度が高い場合について述べると、駆動装置
１２によって、駆動回転が左回転する、これにより、軸
２３、駆動ギア２４、駆動ギア７″を介して駆動軸７が
右方向に駆動され水制御弁１９が右方向に移動すること
で水制御室２１の圧力が湯制御室２２の圧力より低くな
り混合弁１４が右方向に移動する、これにより水弁６が
右方向に変位することによって水通路面積が増加し水量
が増えることになる。一方湯弁１０が右方に変位するこ
とによって湯通路３の通路面積が減少し湯量は減少する
。このようにして水量は増加し湯量は減少するので混合
温度は低下し設定温度に近づく。Next, the operation will be explained. The temperature of the mixing path 4 is detected by a temperature detector 27, compared with a set temperature, and an output signal is sent to the drive device 12. - As an example, when the mixing temperature is higher than the set temperature, the drive rotation is rotated counterclockwise by the drive device 12. As a result, the drive shaft 7 is When the water control valve 19 is driven to the right and moves to the right, the pressure in the water control chamber 21 becomes lower than the pressure in the hot water control chamber 22, and the mixing valve 14 moves to the right.This causes the water valve 6 to move to the right. By displacing in the direction, the water passage area increases and the amount of water increases.On the other hand, by displacing the hot water valve 10 to the right, the passage area of the hot water passage 3 decreases and the amount of hot water decreases.In this way, the amount of water increases. increases and the amount of hot water decreases, so the mixing temperature decreases and approaches the set temperature.

設定温度に対して混合温度が低い場合には前述の逆の動
作によって水量が減少し湯量が増加することによって混
合温度は上昇する。設定温度と混合温度とが等しくなれ
ば、駆動装置１２への出力が停止され湯温は安定する。When the mixing temperature is lower than the set temperature, the amount of water decreases and the amount of hot water increases by the reverse operation described above, thereby raising the mixing temperature. When the set temperature and the mixing temperature become equal, the output to the drive device 12 is stopped and the hot water temperature becomes stable.

この状態において水通路２あるいは湯通路３の圧力が急
に変化しても、水制御室２１と湯制御室２２の圧力バラ
ンスにより水弁６及び湯弁１０を左右に移動することで
過渡時の湯温変化を極減している。Even if the pressure in the water passage 2 or the hot water passage 3 suddenly changes in this state, the pressure balance between the water control chamber 21 and the hot water control chamber 22 allows the water valve 6 and the hot water valve 10 to be moved to the left or right, so that the pressure in the water passage 2 or the hot water passage 3 suddenly changes. Changes in water temperature are minimized.

以上のような基本動作を示すものであるが、本発明のも
のは次に示す内容を付加したものである。The basic operation as described above is shown, but the present invention has the following added contents.

即ち、設定温度に混合温度を可能な限り急速に近づける
ために、水制御弁と湯制御弁の両方を同時に制御する構
成である。つまり、設定温度に対し混合温度が高い場合
に、水制御弁を右方向に駆動させると同時に湯制御弁を
右方向に駆動させることになるので応答が早くできるも
のとなる。さらに、湯通路に加圧ポンプを付加し給湯流
量を増大させる回路構成の場合がある。この場合におい
ては湯側の圧力の急変を考える必要が生じる。つまり、
水側の圧力の急変と湯側の圧力の急変の両方への対応が
生じるものとなる。That is, the configuration is such that both the water control valve and the hot water control valve are controlled simultaneously in order to bring the mixing temperature close to the set temperature as quickly as possible. That is, when the mixing temperature is higher than the set temperature, the water control valve is driven to the right and the hot water control valve is simultaneously driven to the right, resulting in a quick response. Furthermore, there is a circuit configuration in which a pressure pump is added to the hot water passage to increase the flow rate of hot water supply. In this case, it is necessary to consider sudden changes in the pressure on the hot water side. In other words,
This will require responses to both sudden changes in pressure on the water side and sudden changes in pressure on the hot water side.

本発明のものは、水側と湯側に夫々制御弁を設けている
。金板りに、設定温度より圧力が高くなり混合温度が高
くなった場合を考えてみると、湯側の制御弁が右方向に
駆動し、湯弁１０と弁座９のスキ間を急速にて少なくす
ることにより対応できるものである。The device of the present invention is provided with control valves on the water side and the hot water side, respectively. If we consider a case where the pressure on the metal plate becomes higher than the set temperature and the mixing temperature becomes higher, the control valve on the hot water side is driven to the right and the gap between the hot water valve 10 and the valve seat 9 is rapidly moved. This can be dealt with by reducing the amount.

以上のように、湯側と水側の圧力可変の両方を考えると
水制御弁と湯制御弁を夫々にコントロールする必要が生
じるものであり、本発明品はこれに対応したものである
。As described above, considering the variable pressure on both the hot water side and the water side, it becomes necessary to control the water control valve and the hot water control valve respectively, and the product of the present invention is designed to meet this requirement.

発明、の効果 以上のように、本発明の湯水混合装置は、同軸上にて混
合弁と水及び湯制御室を設けていることと、混合弁の動
作をひとつの駆動装置にて、水または湯制御弁の駆動に
て行うこと、そして、駆動装置は混合湯温を検出する温
度検出器の信号によって動作するようにしたものである
。これにより次の効果が得られる。Effects of the Invention As described above, the hot water mixing device of the present invention has the mixing valve and the water and hot water control chambers arranged on the same axis, and the operation of the mixing valve is controlled by one driving device. This is done by driving a hot water control valve, and the driving device is operated by a signal from a temperature detector that detects the temperature of mixed hot water. This provides the following effects.

（１）水圧の栄、変に対して、水制御室と湯制御室が圧
力をキャッチし混合弁が瞬時動作することにより、湯温
変化が極減できる湯水混合装置を簡単なシステムにて実
現できるものである。(1) When the water pressure changes, the water control room and hot water control room catch the pressure and the mixing valve operates instantly, creating a hot water mixing device that can minimize changes in hot water temperature using a simple system. It is possible.

（２）ひとつの駆動装置にてふたつの制御弁（水または
湯）を動作することにより背反する弁動作させ湯と水を
混合することができるので、制御が容易であること、構
造的に簡単であることなどによりコストメリットが生ま
れる。(2) By operating two control valves (water or hot water) with one drive device, hot water and hot water can be mixed by operating opposite valves, so control is easy and the structure is simple. This creates cost advantages.

（３）水制御弁と湯制御弁を夫々にコントロールするこ
とにより、湯側の圧力急変に対しても湯側制御弁を制御
することにより湯温変化が極減できるものである。(3) By controlling the water control valve and the hot water control valve respectively, even in the event of sudden pressure changes on the hot water side, by controlling the hot water side control valve, changes in hot water temperature can be minimized.

（４）混合弁を動作する制御弁は、中空円筒状の小径通
路の開口面積を制御するものであり、低パワーの駆動装
置で済み、コンパクト化が実現するとともにコストメリ
ットが生まれる。(4) The control valve that operates the mixing valve controls the opening area of the hollow cylindrical small-diameter passage, and requires only a low-power drive device, resulting in compactness and cost benefits.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図（ａ）は本発明の一実施例を示す湯水混合装置の
側面要部断面図、第１図（ｂ）は同上の上面要部断面図
、第２図は従来の湯水混合装置の要部断面図である。 ２・・・・・・水通路、３・・・・・・湯通路、４・・
・・・・混合路、６・・・・・・水弁、７，８・・・・
・・駆動軸、？’、８”・・・・・・駆動ギア、１０・
・・・・・湯弁、１１・・・・・・通路、１２・・・・
・・駆動装置、１４・・・・・・混合部、１９・・・・
・・水制御弁、２０・・・・・・湯制御弁、２１・・・
・・・水制御室、２２・・・・・・湯制御室、２４゜２
６・・・・・・駆動ギア、２７・・・・・・温度検出器
。 代理人の氏名　弁理士　粟野重孝　はか１名第 ２゛“ボ遡凶ト ３゛°°渦−１訃 ４−混合路 ６・−水弁 ７、８−一駆勧輸 ７：ど２４．２６−　　駆勉午ヤ １０　・−湯弁 １１・−・通路 １図 （勾 ｆ２・−駈動装置 ／４−−−　Ｓ昆合苛 Ｉ９・−水ｔ？Ｉ御升 υ・−渇制御升 ｚｒ・・−水智Ｉ御支 ２２　゛−湯制御鼠 ２７・・・量友橡工鼻FIG. 1(a) is a side sectional view of a main part of a hot water mixing device showing an embodiment of the present invention, FIG. 1(b) is a top sectional view of the same main part, and FIG. It is a sectional view of the main part. 2...Water passage, 3...Hot water passage, 4...
...Mixing path, 6...Water valve, 7,8...
...Drive shaft? ', 8"... Drive gear, 10.
... Hot water valve, 11 ... Passage, 12 ...
...Drive device, 14...Mixing section, 19...
...Water control valve, 20...Hot water control valve, 21...
...Water control room, 22...Hot water control room, 24゜2
6... Drive gear, 27... Temperature detector. Name of agent: Patent attorney Shigetaka Awano, 1 person, 2nd person: 2nd, 3rd, 4th, 6th, Mizuben, 7th, 8th, 7th, 8th, 7th, 8th, 7th, 8th. 26- Driving gear 10 - Hot water valve 11 - Passage 1 diagram (inclination f2 - Cantering device / 4 - - S Kongo I9 - Water t? zr...-Suizichi I Goshu 22 ゛-Yu control mouse 27...Quantity friend and engineering nose

Claims (1)

【特許請求の範囲】[Claims] 水通路に水弁と水制御部を設け、湯通路に湯弁と湯制御
部を設けた混合弁と、前記水制御部と湯制御部および湯
水混合装置本体とで水制御室と湯制御室を形成し、前記
水弁と湯弁との混合路と、前記混合弁を貫通し混合路へ
開口する通路と前記通路の水制御室と湯制御室にそれぞ
れ制御弁を設けるとともに、前記混合路に設けられた温
度検出器の信号によって混合弁を制御する駆動装置とを
備えた湯水混合装置。A water valve and a water control unit are provided in the water passage, a mixing valve is provided with a hot water valve and a hot water control unit in the hot water passage, and the water control unit, the hot water control unit, and the main body of the hot water mixing device form a water control room and a hot water control room. a mixing passage between the water valve and the hot water valve, a passage passing through the mixing valve and opening to the mixing passage, and a control valve in a water control chamber and a hot water control chamber of the passage, respectively; A hot water mixing device comprising: a drive device that controls a mixing valve according to a signal from a temperature sensor installed in the hot water mixing device;