JPH0810033B2 - Water governor - Google Patents
Water governorInfo
- Publication number
- JPH0810033B2 JPH0810033B2 JP1156387A JP15638789A JPH0810033B2 JP H0810033 B2 JPH0810033 B2 JP H0810033B2 JP 1156387 A JP1156387 A JP 1156387A JP 15638789 A JP15638789 A JP 15638789A JP H0810033 B2 JPH0810033 B2 JP H0810033B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- valve body
- tubular
- tubular valve
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 87
- 238000011144 upstream manufacturing Methods 0.000 claims description 27
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- KHYBPSFKEHXSLX-UHFFFAOYSA-N iminotitanium Chemical compound [Ti]=N KHYBPSFKEHXSLX-UHFFFAOYSA-N 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/002—Actuating devices; Operating means; Releasing devices actuated by temperature variation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/06—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like
- F03G7/061—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like characterised by the actuating element
- F03G7/0614—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like characterised by the actuating element using shape memory elements
- F03G7/06145—Springs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/025—Actuating devices; Operating means; Releasing devices electric; magnetic actuated by thermo-electric means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Temperature-Responsive Valves (AREA)
- Safety Valves (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は湯沸器や給湯器等において、流入した水の流
量を調節する流量型水ガバナに関し、特に、披加熱水の
温度変化に伴って給水量を調節する調節する温度補償機
能を併せ持つように改良された水ガバナに係る。Description: TECHNICAL FIELD The present invention relates to a flow type water governor for adjusting the flow rate of inflowing water in a water heater, a water heater, etc. The present invention relates to a water governor improved so as to also have a temperature compensation function for adjusting the amount of water supplied.
［従来の技術］ バーナー等の加熱装置によって水を加熱する湯沸器や
給湯器等では、上水道の圧力変動の影響を防止するため
に水ガバナが湯沸器等の熱交換器の上流に備えられ、熱
交換器へ供給される水圧を一定にして、熱交換器内の通
過水量を安定させて、出湯温度の変化をなくしている。[Prior Art] In water heaters and water heaters that heat water with a heating device such as a burner, a water governor is provided upstream of a heat exchanger such as a water heater to prevent the influence of pressure fluctuations in water supply. Therefore, the water pressure supplied to the heat exchanger is made constant, the amount of water passing through the heat exchanger is stabilized, and the change of the outlet water temperature is eliminated.
また、同じ加熱能力でも、熱交換器へ流入する水の温
度によって出湯温度が変化し、特に冬季など水の温度が
著しく低い場合には、加熱装置の加熱能力が不足して、
十分に加熱できない場合が生じやすいため、水温が低い
場合に、熱交換器内を通過する水量を自動的に調節して
減少させる温度補償式の水量調整装置が熱交換器の上流
に備えられている。Even with the same heating capacity, the outlet temperature changes depending on the temperature of the water flowing into the heat exchanger, and especially when the temperature of the water is extremely low, such as during winter, the heating capacity of the heating device is insufficient,
Since there are cases where the water cannot be sufficiently heated, there is a temperature-compensated water volume adjustment device that automatically adjusts and reduces the amount of water passing through the heat exchanger when the water temperature is low. There is.
従来では、例えば、これら２つの機能を共に有する第
５図に示すような温度補償式の水量調整装置100が、図
示下方を上流側、上方を下流側として熱交換器の上流に
備えられている。この水量調整装置100では、ケーシン
グ101内に摺動可能に設けられた筒状弁体20と、筒状弁
体20内を貫通して設けられダイヤフラム40等によって筒
状弁体20と接合された管状弁体30とによって水ガバナが
形成されている。Conventionally, for example, a temperature compensation type water amount adjusting device 100 having both of these two functions as shown in FIG. 5 is provided upstream of the heat exchanger with the lower side in the figure as the upstream side and the upper side as the downstream side. . In this water amount adjusting device 100, the tubular valve body 20 slidably provided in the casing 101, and the tubular valve body 20 joined to the tubular valve body 20 by penetrating the inside of the tubular valve body 20 and the diaphragm 40 or the like. A water governor is formed by the tubular valve body 30.
ここで、筒状弁体20は内周方向に湾曲した板ばね50に
よって、管状弁体30はコイルばね55によって、それぞれ
上流側へ押圧され、筒状弁体20と管状弁体30との間に
は、筒状弁体20を上流側へ押圧するためのコイルばね52
が設けられている。そして、流入口14bから水が流入す
ると、一次水圧室100Aと二次水圧室100Bとの圧力差に応
じて、管状弁体30の弁部33と筒状弁体20の弁部22との相
対位置が変化して、熱交換器へ供給する水量が所定の水
量になるように間隙100Cが調節される。Here, the tubular valve body 20 is pressed to the upstream side by the leaf spring 50 curved in the inner circumferential direction, and the tubular valve body 30 is pressed to the upstream side by the coil spring 55, respectively, and the tubular valve body 20 and the tubular valve body 30 are separated from each other. Includes a coil spring 52 for pressing the tubular valve body 20 upstream.
Is provided. Then, when water flows in from the inflow port 14b, in accordance with the pressure difference between the primary hydraulic chamber 100A and the secondary hydraulic chamber 100B, the valve portion 33 of the tubular valve body 30 and the valve portion 22 of the tubular valve body 20 relative to each other. The position is changed and the gap 100C is adjusted so that the amount of water supplied to the heat exchanger becomes a predetermined amount of water.
また、コイルばね55は、ケーシング101との間にワッ
クスサーモ111を備えたばね支持板112によって支持さ
れ、流入水の温度に応じてコイルばね55の押圧力を変化
せるため、一次水圧室100Aと二次水圧室100Bとの圧力差
を変化させることができ、温度に応じて供給水量を変更
することができる。The coil spring 55 is supported by a spring support plate 112 provided with a wax thermo 111 between the coil spring 55 and the casing 101, and the pressing force of the coil spring 55 is changed according to the temperature of the inflow water. The pressure difference with the next water pressure chamber 100B can be changed, and the amount of supplied water can be changed according to the temperature.
このように、従来では、流入水温に応じて、供給水量
の温度補償をするためにワックスサーモ111を使用して
いるため、部品点数が多くなるとともに、水量調整装置
100が大型になり、さらにワックスサーモ111の劣化によ
って液漏れの可能性があるという問題がある。As described above, conventionally, since the wax thermo 111 is used for temperature compensation of the supplied water amount according to the inflow water temperature, the number of parts is increased and the water amount adjusting device is used.
There is a problem that 100 becomes large and there is a possibility of liquid leakage due to deterioration of the wax thermo 111.
［発明が解決しようとする課題］ ところで、実開昭63−145070号広報には、形状記憶合
金製弁開側荷重変動スプリング、弁開側スプリング、及
び弁閉側スプリングを有し、ワックスサーモを使用しな
い、温度センサ付水量制限バルブが記載されている。[Problems to be Solved by the Invention] By the way, Japanese Utility Model Laid-Open No. 63-145070 discloses a wax thermostat having a shape memory alloy valve opening side load variation spring, a valve opening side spring, and a valve closing side spring. The water quantity limiting valve with a temperature sensor that is not used is described.
しかし、この水量制限バルブでは、給湯器等のばらつ
きにより流量に誤差が発生しても、給湯器等に備え付け
た後に、形状記憶合金製弁開側荷重変動スプリングの荷
重を調節できないという欠点がある。However, this water amount limiting valve has a drawback that even if an error occurs in the flow rate due to variations in the water heater, etc., the load of the shape memory alloy valve opening side load variation spring cannot be adjusted after the water heater is installed in the water heater. .
本発明は、小型で部品点数が少なく、かつ信頼性が高
いとともに、給湯器等に備え付けた後に、形状記憶合金
製の圧縮ばねの荷重を容易に調節できる、温度補償式の
水ガバナを提供することを目的とする。The present invention provides a temperature-compensated water governor that is small in size, has a small number of parts, is highly reliable, and can easily adjust the load of a compression spring made of a shape memory alloy after being installed in a water heater or the like. The purpose is to
［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為、以下の構成を採用
した。[Means for Solving the Problems] In order to solve the above problems, the present invention employs the following configurations.
流入口と流出口とを有する、略Ｌ字状の筒状ケーシン
グと、前記筒状ケーシング内に固定される筒状弁体と、
ダイヤフラムにより前記筒状弁体に支持される管状弁体
と、該管状弁体と前記筒状弁体との間に配される、円錐
コイル形状を呈する圧縮ばねと、前記流出口へ連通する
開口を有する筒状部を備え、軸に沿って移動可能に螺合
する荷重調整ねじと、前記筒状部と前記管状弁体との間
に配され、前記管状弁体を上流側へ付勢する、円筒コイ
ル形状をなす形状記憶合金製の圧縮ばねとを具備してな
る。A substantially L-shaped tubular casing having an inlet and an outlet, and a tubular valve element fixed in the tubular casing,
A tubular valve element supported by the tubular valve element by a diaphragm, a conical coil-shaped compression spring disposed between the tubular valve element and the tubular valve element, and an opening communicating with the outlet. A load adjusting screw that is screwed movably along an axis, and is arranged between the tubular portion and the tubular valve body, and urges the tubular valve body upstream. A compression spring made of a shape memory alloy having a cylindrical coil shape.
［作用および発明の効果］ （作用） 流入する水の温度に応じて決定される形状記憶合金製
の圧縮ばねの発生荷重のみによって、流入口側の筒状ケ
ーシング内の水圧と流出口側の筒状ケーシング内の水圧
との差圧が決定され、管状弁体が、その差圧が得られる
ように、筒状弁体との隙間を調節し、流入した温度に応
じた流量の水が通過する。[Operation and Effect of Invention] (Operation) The water pressure in the tubular casing on the inlet side and the tube on the outlet side are determined only by the load generated by the compression spring made of a shape memory alloy, which is determined according to the temperature of the inflowing water. The pressure difference with the water pressure inside the cylindrical casing is determined, and the tubular valve body adjusts the gap with the tubular valve body so that the pressure difference is obtained, and the flow rate of water according to the inflow temperature passes. .
（効果） 本発明の水ガバナは、従来のワックスサーモを使用し
た温度補償式の水量調整装置と比較して、部品点数が少
なくかつ小型にすることができる。(Effects) The water governor of the present invention has a smaller number of parts and can be made smaller than a conventional temperature compensation type water amount adjusting device using a wax thermostat.
また、温度補償にばねを使用しているため、熱容量が
小さくなり、応答性が早くなり、ワックスサーモ式と異
なり液漏れの心配がなく、信頼性が高く湯沸器等に安心
して使用できる。Also, since a spring is used for temperature compensation, the heat capacity is small, the response is quick, there is no risk of liquid leakage unlike the wax thermo type, and the reliability is high and it can be used with confidence in a water heater or the like.
圧縮ばね自体の温度感応性により温度に応じた圧力調
整を行い、ワックスサーモのように他の温度感応部材に
よってばねに荷重を加えないため、圧縮ばねの可動範囲
には変化がなく。弁体の変位可能範囲が一定である。従
って、各温度において圧力変化による影響を受けず、供
給圧力に関係なく安定した流量調整を行うことができ
る。Since the pressure sensitivity is adjusted according to the temperature by the temperature sensitivity of the compression spring itself and no load is applied to the spring by another temperature sensitive member like the wax thermo, the movable range of the compression spring does not change. The displaceable range of the valve body is constant. Therefore, it is possible to perform stable flow rate adjustment regardless of the supply pressure without being affected by the pressure change at each temperature.
給湯器等のばらつきにより発生する流量の誤差を、荷
重調整ねじを調節して形状記憶合金製の圧縮ばねの荷重
を調節する事により、給湯器等に備え付けた状態で容易
に補正できる。By adjusting the load adjusting screw and adjusting the load of the compression spring made of shape memory alloy, the error of the flow rate caused by the variation of the water heater or the like can be easily corrected in the state of being installed in the water heater or the like.
荷重調整ねじの構造が簡単であるとともに、皿状のば
ね支持板が不要であり、部品点数が少なく、信頼性が高
い。The structure of the load adjusting screw is simple, and the dish-shaped spring support plate is not necessary, so the number of parts is small and the reliability is high.
［実施例］ 次に本発明を実施例に基づいて説明する。EXAMPLES Next, the present invention will be described based on examples.
第１図に示す温度補償式水ガバナ１は、流入口14bと
流出口16bとを有する、筒状ケーシング10と、筒状ケー
シング10内に配された筒状弁体20と、ダイヤフラム40に
より筒状弁体20に支持される管状弁体30と、管状弁体30
と筒状弁体20との間に配される円錐コイル形状を呈する
コイルばね52と、流出口16bへ連通する開口18Cを有する
筒状部18Bを有し、軸に沿って移動可能に螺合する荷重
調節ねじ18Aと、筒状部18Bと管状弁体30との間に配さ
れ、管状弁体30を上流側へ付勢するコイルばね51とを具
備する。The temperature-compensated water governor 1 shown in FIG. 1 has a tubular casing 10 having an inlet 14b and an outlet 16b, a tubular valve body 20 arranged in the tubular casing 10, and a diaphragm 40. Tubular valve body 30 supported by the tubular valve body 20, and the tubular valve body 30
A coil spring 52 having a conical coil shape, which is arranged between the cylindrical valve body 20 and the tubular valve body 20, and a tubular portion 18B having an opening 18C communicating with the outlet 16b, and screwed so as to be movable along the axis. The load adjusting screw 18A is provided, and the coil spring 51 is provided between the tubular portion 18B and the tubular valve body 30 to bias the tubular valve body 30 to the upstream side.
筒状ケーシング10は、それぞれ上流側と下流側に対応
した大径部11および小径部12の２つの筒部を有する。The tubular casing 10 has two tubular portions, a large diameter portion 11 and a small diameter portion 12, which correspond to the upstream side and the downstream side, respectively.
本実施例では、筒状ケーシング10全体を略Ｌ字型とな
るように、筒状ケーシング10の小径部12にさらに筒部12
Aを設けて、筒部12Aに流出口16bを設けている。In this embodiment, the tubular portion 12 is further provided on the small-diameter portion 12 of the tubular casing 10 so that the entire tubular casing 10 is substantially L-shaped.
A is provided, and an outlet 16b is provided in the cylindrical portion 12A.
また、小径部12の図示上方の下流端は開口部となって
いて、この開口部の上流側の小径部12の内側にはめねじ
が形成されていて、めねじ内には、形状記憶合金製のコ
イルばね51を支持するとともに、コイルばね51の荷重を
調整するための前記荷重調整ねじ18Aが螺合されてい
る。Further, the downstream end of the small-diameter portion 12 at the upper side in the drawing is an opening, and an internal thread is formed inside the small-diameter portion 12 on the upstream side of the opening, and the internal thread is made of a shape memory alloy. The load adjusting screw 18A for supporting the coil spring 51 and adjusting the load of the coil spring 51 is screwed.
荷重調整ねじ18Aには、その上流側部分に水を流入さ
せるための中空穴を有する筒状部18Bが形成されてい
て、さらに筒状部18Bには、中空穴へ流入した水を流出
口16bへ通過させる開口18Cが形成されている。The load adjusting screw 18A is formed with a tubular portion 18B having a hollow hole for allowing water to flow into the upstream side portion thereof, and the tubular portion 18B is further provided with a water outlet 16b for flowing water flowing into the hollow hole. An opening 18C is formed so as to pass therethrough.
大径部11の内部の上流には上流側支持部材14が摺動可
能に嵌入され、大径部11の内側に形成された溝11aに圧
入されたスナップリング15によって上流側が係止されて
いる。An upstream support member 14 is slidably fitted upstream of the large-diameter portion 11, and the upstream side is locked by a snap ring 15 press-fitted into a groove 11a formed inside the large-diameter portion 11. .
上流側支持部材14は、上流側の中央部に凸部14aが設
けられた断面凸形状を呈し、上流側の段部には水の流入
口14bが設けられ、下流側は開放されている。上流側支
部材14は流入口14bの内側に一次水圧室10Aを形成する。The upstream side support member 14 has a convex shape in cross section in which a convex portion 14a is provided in the central portion on the upstream side, a water inlet 14b is provided on the upstream step, and the downstream side is open. The upstream side support member 14 forms a primary water pressure chamber 10A inside the inflow port 14b.
尚、本実施例では、上流側支持部材14および筒状弁体
20は大径部11の内側に嵌合され、スナップリング15によ
って固定されていて、水の流入時に移動しないようにな
っている。このため、流入する水の温度に応じて決定さ
せるコイルばね51の発生荷重のみによって一次水圧室10
Aと二次水圧室10Bとの差圧が決定され、管状弁体30は、
その差圧が得られるように間隙10Cを調節し、流入した
温度に応じた流量の水が通過する。In the present embodiment, the upstream side support member 14 and the tubular valve body
20 is fitted inside the large diameter portion 11 and is fixed by a snap ring 15 so as not to move when water flows in. Therefore, only the load generated by the coil spring 51, which is determined according to the temperature of the inflowing water, causes the primary hydraulic chamber 10
The differential pressure between A and the secondary hydraulic chamber 10B is determined, and the tubular valve body 30 is
The gap 10C is adjusted so that the differential pressure is obtained, and the flow rate of water according to the inflow temperature passes.
小径部12は、内側に二次水圧室10Bを形成する。 The small diameter portion 12 forms a secondary hydraulic chamber 10B inside.
筒状弁体20は、大径部11の内部の上流側支持部材14の
下流側に配され、フランジ21により大径部11に摺動可能
に嵌入されている。The tubular valve body 20 is arranged inside the large diameter portion 11 on the downstream side of the upstream side support member 14, and is slidably fitted into the large diameter portion 11 by a flange 21.
筒状弁体20の上流側には、流入水を制限するために内
径を細くした弁部22が形成されている。A valve portion 22 having a narrow inner diameter is formed on the upstream side of the tubular valve body 20 to limit inflow water.
筒状弁体20の下流側の外周には、ダイヤフラム40を嵌
入させるための溝23が形成されている。A groove 23 for fitting the diaphragm 40 is formed on the outer periphery of the tubular valve body 20 on the downstream side.
管状弁体30は、上流端と下流端とを連通する水路31を
設けた管状を呈し、下流端にはフランジ32が設けられ、
上流端と下流端との中間部には外周側へ突出した弁部33
が設けられ、筒状弁体20と管状弁体30との相対位置によ
って筒状弁体20の弁部22と管状弁体30の弁部33との間の
間隙10Cが変化し、間隙10Cには相対位置に応じた水量が
通過する。The tubular valve body 30 has a tubular shape provided with a water channel 31 that connects the upstream end and the downstream end, and a flange 32 is provided at the downstream end.
At the intermediate portion between the upstream end and the downstream end, the valve portion 33 protruding to the outer peripheral side
Is provided, the gap 10C between the valve portion 22 of the tubular valve body 20 and the valve portion 33 of the tubular valve body 30 changes depending on the relative positions of the tubular valve body 20 and the tubular valve body 30, and the gap 10C becomes The amount of water that passes depends on the relative position.
フランジ32と弁部33との間には、水路31と連通する開
口部34が設けられている。An opening 34 that communicates with the water channel 31 is provided between the flange 32 and the valve portion 33.
また、管状弁体30の上流側の周囲には、上流側支持部
材14の凸部14a内を摺動するために大径の摺動部35が形
成され、管状弁体30は摺動部35の溝36に外嵌されたＯリ
ング60によって円滑に摺動する。Further, a large-diameter sliding portion 35 is formed around the upstream side of the tubular valve body 30 for sliding in the convex portion 14a of the upstream side support member 14, and the tubular valve body 30 has a sliding portion 35. It smoothly slides by the O-ring 60 fitted in the groove 36.
フランジ32には、コイルばね52を係止するためのばね
係止金具37が外嵌され、さらに管状弁体30の下流には円
盤38が配設され、その中央には水路31からの水を通過さ
せる通過口38aが設けられている。A spring locking metal fitting 37 for locking the coil spring 52 is externally fitted to the flange 32, and a disc 38 is disposed downstream of the tubular valve body 30, and water from the water channel 31 is provided in the center thereof. A passage port 38a is provided to allow passage.
円盤38の下流には、コイルばね51を係止するためのば
ね係止金具39が、ダイヤフラム40を介して円盤38に固定
されている。Downstream of the disk 38, a spring locking metal fitting 39 for locking the coil spring 51 is fixed to the disk 38 via a diaphragm 40.
ダイヤフラム40は環状のゴム製で、筒状弁体20と管状
弁体30とを接合して筒状弁体20と筒状弁体20に遊貫され
た管状弁体30との間の水の流動を防止し、一次水圧室10
Aと二次水圧室10Bとを分離する。The diaphragm 40 is made of an annular rubber, and the water between the tubular valve body 20 and the tubular valve body 30 loosely inserted into the tubular valve body 20 by joining the tubular valve body 20 and the tubular valve body 30 is joined. Prevents flow, primary hydraulic chamber 10
A and the secondary hydraulic chamber 10B are separated.
この結果、流入口14bから流入する水は、管状弁体30
の開口部34から水路31へ流入して、通過口38aを経て小
径部12内を通過し、流出口16bから流出する。As a result, the water flowing in from the inflow port 14b will not flow into the tubular valve body 30.
Flows into the water channel 31 from the opening 34, passes through the small diameter portion 12 through the passage opening 38a, and flows out from the outlet 16b.
コイルばね51は円筒コイル形状をなす、例えばNi−Ti
系（他、Ni−Ti−Co系でも良い）の形状記憶合金製の圧
縮ばねであり、一方が荷重調整ねじ18に係止され、他方
がばね係止金具39に係止されている。The coil spring 51 has a cylindrical coil shape, for example, Ni-Ti.
A compression spring made of a shape memory alloy of other type (otherwise, Ni-Ti-Co type may be used), one of which is locked to the load adjusting screw 18 and the other of which is locked to the spring locking metal fitting 39.
ここでは、第２図に示すとおり、温度の上昇に応じて
発生する荷重が次第に増大する特性を有している。Here, as shown in FIG. 2, the load generated is gradually increased as the temperature rises.
コイルばね52は、円錐コイル形状を呈する圧縮ばね
で、筒状弁体20の弁部22とばね係止金具37との間に配さ
れ、互いに離反方向に荷重を発生する。The coil spring 52 is a compression spring having a conical coil shape, and is arranged between the valve portion 22 of the tubular valve body 20 and the spring locking fitting 37, and generates a load in a direction away from each other.
以上の構成からなる本実施例の温度補償式水ガバナ１
は、次のとおり作用する。The temperature-compensated water governor 1 of the present embodiment having the above configuration
Works as follows.
水供給管から水が供給されると、上流側支持部材14の
流入口14bから一次水圧室10Aへ流入した水は、間隙10C
を通過して、管状弁体30の開口部34を経て通過口38aか
ら二次水圧室10Bへ導かれる。When the water is supplied from the water supply pipe, the water flowing into the primary hydraulic chamber 10A from the inflow port 14b of the upstream side supporting member 14 has a gap 10C.
Through the opening portion 34 of the tubular valve body 30 to the secondary hydraulic chamber 10B from the passage opening 38a.
このとき、筒状弁体20と管状弁体30がそれぞれ移動し
て、一次水圧室10A内の圧力と二次水圧室10Bとの圧力差
が所定の圧力差になり、間隙10Cを通過する水量を調節
する。At this time, the tubular valve body 20 and the tubular valve body 30 respectively move, the pressure difference between the pressure in the primary hydraulic chamber 10A and the secondary hydraulic chamber 10B becomes a predetermined pressure difference, and the amount of water passing through the gap 10C. Adjust.
この場合、二次水圧室10Bの水圧は、一次水圧室10Aへ
の流入水圧およびコイルばね52の荷重と、コイルばね51
の荷重との差によって決定され、またコイルばね51の荷
重は流入する温度に応じて変化するため、二次水圧室10
B内へ流入する水量は、一次水圧室10Aへの供給水圧が一
定の場合には、流入する水の温度に応じて第３図に示す
ように、水温が高いほど増加し、水温が一定の場合に
は、第４図に示すとおり、供給圧力の変化に関係なく、
一定の水量となる。In this case, the water pressure in the secondary water pressure chamber 10B is the inflow water pressure into the primary water pressure chamber 10A and the load of the coil spring 52, and the coil spring 51.
The load of the coil spring 51 changes according to the inflow temperature, so that the secondary hydraulic chamber 10
When the supply water pressure to the primary water pressure chamber 10A is constant, the amount of water flowing into B increases according to the temperature of the inflowing water as the water temperature increases, and the water temperature becomes constant. In this case, as shown in FIG. 4, regardless of changes in the supply pressure,
The amount of water is constant.
なお、第５図では、説明簡略化のために第１図と同一
物あるい同一機能物には同番号を付した。Note that, in FIG. 5, for simplification of description, the same numbers or the same functions as those in FIG.
第１図は本発明の第１実施例の温度補償式水ガバナを示
す断面図、第２図は本実施例における形状記憶合金製コ
イルばねの温度と発生荷重を示す特性図、第３図は本実
施例において供給水圧が一定の場合の水温に対する供給
水量を示す特性図、第４図は本実施例において水温が一
定の場合の供給圧力に対する供給水量を示す特性図、第
５図は従来例を示す断面図である。 図中 １……温度補償式水ガバナ（水ガバナ）、10……筒状ケ
ーシング、14b……流入口、16……流出口、18A……荷重
調整ねじ、20……筒状弁体、30……管状弁体、40……ダ
イヤフラム、51……形状記憶合金製のコイルばね、52…
…コイルばね（圧縮ばね）FIG. 1 is a sectional view showing a temperature-compensated water governor of a first embodiment of the present invention, FIG. 2 is a characteristic diagram showing temperature and generated load of a shape memory alloy coil spring in the present embodiment, and FIG. In this embodiment, a characteristic diagram showing the amount of supplied water with respect to the water temperature when the supply water pressure is constant, FIG. 4 is a characteristic diagram showing the amount of supplied water with respect to the supply pressure when the water temperature is constant in this embodiment, and FIG. 5 is a conventional example. FIG. In the figure, 1 ... Temperature-compensated water governor (water governor), 10 ... Cylindrical casing, 14b ... Inlet, 16 ... Outlet, 18A ... Load adjusting screw, 20 ... Cylindrical valve element, 30 ...... Tubular valve element, 40 ...... Diaphragm, 51 ...... Coil spring made of shape memory alloy, 52 ...
… Coil spring (compression spring)
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実開 昭63−145070（ＪＰ，Ｕ) 実開 昭59−157177（ＪＰ，Ｕ) 実開 昭61−70211（ＪＰ，Ｕ) 実開 昭53−96244（ＪＰ，Ｕ) 実開 昭54−75425（ＪＰ，Ｕ) 実開 昭59−108873（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Shown 63-145070 (JP, U) Shown 59-157177 (JP, U) Shown 61-70211 (JP, U) Shown 53- 96244 (JP, U) Actual opening 54-75425 (JP, U) Actual opening 59-108873 (JP, U)
Claims (1)
状ケーシングと、 前記筒状ケーシング内に固定される筒状弁体と、 ダイヤフラムにより前記筒状弁体に支持される管状弁体
と、 該管状弁体と前記筒状弁体との間に配される、円錐コイ
ル形状を呈する圧縮ばねと、 前記流出口へ連通する開口を有する筒状部を備え、軸に
沿って移動可能に螺合する荷重調節ねじと、 前記筒状部と前記管状弁体との間に配され、前記管状弁
体を上流側へ付勢する、円筒コイル形状をなす形状記憶
合金製の圧縮ばねとを具備してなる水ガバナ。1. A substantially L-shaped tubular casing having an inlet and an outlet, a tubular valve body fixed in the tubular casing, and supported by the tubular valve body by a diaphragm. A tubular valve body, a compression spring having a conical coil shape, which is arranged between the tubular valve body and the tubular valve body, and a tubular portion having an opening communicating with the outflow port. Made of a shape memory alloy having a cylindrical coil shape, which is arranged between the tubular portion and the tubular valve body and biases the tubular valve body upstream. A water governor comprising a compression spring.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1156387A JPH0810033B2 (en) | 1988-10-22 | 1989-06-19 | Water governor |
| KR1019890015335A KR930010010B1 (en) | 1988-10-22 | 1989-10-25 | Quantity of water control device |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26693688 | 1988-10-22 | ||
| JP63-266936 | 1988-10-22 | ||
| JP31084488 | 1988-12-08 | ||
| JP63-310844 | 1988-12-08 | ||
| JP1156387A JPH0810033B2 (en) | 1988-10-22 | 1989-06-19 | Water governor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02266177A JPH02266177A (en) | 1990-10-30 |
| JPH0810033B2 true JPH0810033B2 (en) | 1996-01-31 |
Family
ID=26547653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1156387A Expired - Fee Related JPH0810033B2 (en) | 1988-10-22 | 1989-06-19 | Water governor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0810033B2 (en) |
| KR (1) | KR930010010B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628428B (en) * | 2021-02-02 | 2024-12-17 | 江西书源科技有限公司 | Three-in-one faucet with sterilization function |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63145070U (en) * | 1987-03-13 | 1988-09-26 |
-
1989
- 1989-06-19 JP JP1156387A patent/JPH0810033B2/en not_active Expired - Fee Related
- 1989-10-25 KR KR1019890015335A patent/KR930010010B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR930010010B1 (en) | 1993-10-14 |
| KR910001299A (en) | 1991-01-30 |
| JPH02266177A (en) | 1990-10-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |