JP2001173828A - Solenoid feed valve - Google Patents

Solenoid feed valve

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Publication number
JP2001173828A
JP2001173828A JP35675199A JP35675199A JP2001173828A JP 2001173828 A JP2001173828 A JP 2001173828A JP 35675199 A JP35675199 A JP 35675199A JP 35675199 A JP35675199 A JP 35675199A JP 2001173828 A JP2001173828 A JP 2001173828A
Authority
JP
Japan
Prior art keywords
water
pressure
valve
pilot
water supply
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.)
Pending
Application number
JP35675199A
Other languages
Japanese (ja)
Inventor
Susumu Shirai
進 白猪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Techno Excel KK
Original Assignee
Techno Excel KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Techno Excel KK filed Critical Techno Excel KK
Priority to JP35675199A priority Critical patent/JP2001173828A/en
Publication of JP2001173828A publication Critical patent/JP2001173828A/en
Pending legal-status Critical Current

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  • Fluid-Driven Valves (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

PROBLEM TO BE SOLVED: To resolve such a problem that a water hammer suppressing measure is not provided for water hammering, that is, what is called pressure application propagated from a water supply pipeline, in a conventional pilot system electromagnetic water supply valve mounted on electrical machinery and apparatus for domestic use (for example, a fully automatic washing machine and a tableware washing and drying machine). SOLUTION: In a valve main body integrally forming an inflow port, an inflow pipe passage, an inflow chamber, an outflow pipe passage and an outflow port, a main valve seat formed by a high density member non-permeable to water and permeable to gas contained in water is fixed to the valve main body. When pressure of water in the inflow chamber is prescribed pressure or more, a part of gas contained in water in the inflow chamber is ventilated from the high density member (main valve seat) to the outflow port and pressure of water in the inflow chamber is lowered.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、水道水等の給水配
管ライン等(以下、ラインという。)に設置して、プラ
ンジャでダイヤフラム弁のパイロット・オリフィスを開
閉することにより、ダイヤフラム弁を連動させて主弁座
の開閉を行うパイロット方式の電磁式給水弁に係るもの
であり、詳しくは給水器具(給水用具ともいう。例え
ば、水栓、洗浄弁、電磁式給水弁、ボールタップ)等が
発生させる水撃作用(ラインに生じる圧力の急激な変動
作用をいう。水撃作用等で上昇した圧力を水撃圧とい
う。)で、流入室の水の圧力が所定圧(例えば、ライン
で静止している水の水圧所謂静水圧が1.75MPa
〔メガパスカル〕)以上のとき、該流入室の水に含有さ
れる気体の一部を、高密度部材で形成した主弁座から流
出口に通気させ、該流入室の水の圧力を下げることがで
きるパイロット方式の電磁式給水弁に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a diaphragm valve, which is installed in a water supply pipe line for tap water or the like (hereinafter, referred to as a line) and a pilot orifice of the diaphragm valve is opened and closed by a plunger. The present invention relates to a pilot-type electromagnetic water supply valve that opens and closes a main valve seat, and specifically generates a water supply device (also referred to as a water supply device, such as a faucet, a cleaning valve, an electromagnetic water supply valve, a ball tap), and the like. By a water hammer action (a sudden fluctuation action of a pressure generated in a line; a pressure increased by a water hammer action or the like is referred to as a water hammer pressure), a pressure of water in an inflow chamber becomes a predetermined pressure (for example, a static pressure in a line). The water pressure of the so-called hydrostatic pressure is 1.75MPa
[Mega Pascal]) In this case, a part of the gas contained in the water in the inflow chamber is ventilated from the main valve seat formed of a high-density member to the outflow port to lower the pressure of the water in the inflow chamber. The present invention relates to a pilot-type electromagnetic water supply valve capable of performing the following.

【0002】[0002]

【従来の技術】最近は、ラインに逆止弁をいれている地
域が多くなってきている。これにより、ラインの水の流
れを給水器具等で急閉させると起こる水撃作用は、ライ
ンの逆止弁により水の供給元には行かず、供給元のライ
ンの静水圧を越える異常水圧(水撃圧の略最大値となっ
ている場合が多い。例えば、ラインの静水圧で2.00
MPa〜6.00MPa)となって、給水器具付近のラ
インで圧籠もりしている場合が多い。その異常水圧が、
家庭用電気機器(例えば、全自動洗濯機、食器洗い乾燥
機、局部洗浄装置)等に搭載されている、例えば、ライ
ンの静水圧で5.00MPa程度の耐水圧破壊強度を有
するパイロット方式の電磁式給水弁(以下、従来弁とい
う。弁本体が、真鍮等の金属類で形成されているものは
少なく、例えば、ポリプロピレン樹脂等の樹脂成形部材
で形成されているものが多い。)等を破裂させる。
2. Description of the Related Art In recent years, there are increasing areas where check valves are provided in lines. As a result, the water hammer effect that occurs when the flow of water in the line is suddenly closed by a water supply device or the like does not go to the water supply source due to the check valve of the line, and the abnormal water pressure exceeding the hydrostatic pressure of the supply source line ( In many cases, the water hammer pressure is almost the maximum value, for example, the hydrostatic pressure of the line is 2.00.
(MPa to 6.00 MPa), and there are many cases where a pressure cage is in a line near a water supply device. The abnormal water pressure is
For example, a pilot-type electromagnetic type installed in household electric appliances (for example, a fully automatic washing machine, a dishwasher, a local washing device) and having a hydrostatic breakdown strength of about 5.00 MPa at a line hydrostatic pressure. A water supply valve (hereinafter, referred to as a conventional valve; the valve body is rarely formed of a metal such as brass, for example, is often formed of a resin molded member such as a polypropylene resin, etc.) and the like is ruptured. .

【0003】参考ではあるが、因みに、本発明の出願日
時点での水道法(昭和32年6月15日法律第177
号)の規定に基づく水道法施行令(昭和32年12月1
2日政令第336号)第4条(給水装置の構造及び材質
の基準)に係わる給水装置の構造及び材質の基準に関す
る省令(平成9年3月19日厚生省令第14号)の耐圧
に関する基準においては、静水圧で1.75MPaの水
を1分間加えたとき、水漏れ、変形、破損その他の異常
を生じないことという基準があるが、従来弁では最低で
も8.00MPa以上の耐水圧破壊強度を要望される場
合が多い。
[0003] For reference, the Water Supply Law at the time of filing the present invention (Law No. 177 of June 15, 1957)
Ordinance for Enforcement of Water Supply Law (December 1, 1957)
2nd Cabinet Order No. 336) Standard concerning pressure resistance of Ministerial Ordinance (Standard of Ministry of Health and Welfare No. 14 of March 19, 1997) on Article 4 (Standard of Structure and Material of Water Supply System) concerning Article 4 (Standard of Structure and Material of Water Supply System) , There is a criterion that when water of 1.75 MPa is added at a hydrostatic pressure for 1 minute, water leakage, deformation, breakage and other abnormalities do not occur, but the conventional valve has a water pressure rupture of at least 8.00 MPa. In many cases, strength is required.

【0004】従来弁は、流入口、流入管路、流入室、主
弁座(流出管路の端面部)、流出管路、流出口を樹脂成
形部材(例えば、ポリプロピレン樹脂)で一体成形した
弁本体に、主弁座を閉鎖するようにダイヤフラム弁(弁
体)を設置し、該弁本体に該ダイヤフラム弁の液密パッ
キン部を押圧するように樹脂成形部材(例えば、ナイロ
ン樹脂)のガイドケース(内部を背圧室という。)を押
止め、該ガイドケースの内周には該ダイヤフラム弁のパ
イロット・オリフィスが閉鎖されるように、弾性部材
(例えば、シリコンゴム)のプランジャシート(弁体)
が固定された磁性部材(例えば、ステンレススチール)
のプランジャと、該プランジャを常時弾発付勢している
コイルスプリング(例えば、ステンレススチール線)を
収納し、該ガイドケースの外周には銅線(例えば、エナ
メル線)を円筒状のボビン(例えば、ナイロン樹脂)に
巻いて端子片(例えば、ファストン端子#250)やリ
ード線に接続したソレノイドを設置して構成されたもの
が知られている。
A conventional valve is a valve in which an inflow port, an inflow pipe, an inflow chamber, a main valve seat (an end face of an outflow pipe), an outflow pipe, and an outflow port are integrally formed of a resin molded member (for example, polypropylene resin). A diaphragm valve (valve element) is installed in the main body so as to close the main valve seat, and a guide case of a resin molded member (for example, nylon resin) so as to press the liquid tight packing portion of the diaphragm valve against the valve main body. (The interior is referred to as a back pressure chamber), and a plunger sheet (valve element) made of an elastic member (for example, silicone rubber) is provided on the inner periphery of the guide case so that the pilot orifice of the diaphragm valve is closed.
Magnetic member with fixed (for example, stainless steel)
And a coil spring (e.g., stainless steel wire) that constantly urges the plunger, and a copper wire (e.g., enameled wire) is provided on the outer periphery of the guide case with a cylindrical bobbin (e.g., an enamel wire). , Nylon resin), and a terminal piece (for example, Faston terminal # 250) or a solenoid connected to a lead wire is installed.

【0005】流入口の外周部には、例えば、ねじ継手の
呼びPT3/4、口径の呼び20というように、業界で
は給水ホース等のねじ接続や口径等を規格化していて、
業界規定の螺刻(例えば、10山)がある。該流入口の
内周部(流入する水の圧力を一次圧又は高圧側とい
う。)には、異物(例えば、虫、砂、鉄屑等)混入防止
の60メッシュ程度の金属フィルタや、一次圧(ライン
の動水圧)に係わらず略流量が一定になるように流量調
整部品等を組み込む場合が多い。
In the outer peripheral portion of the inflow port, for example, the thread connection and the diameter of a water supply hose and the like are standardized, such as a nominal diameter of a screw joint PT3 / 4 and a nominal diameter of 20, and the like.
There are industry-defined threads (eg, 10 peaks). A metal filter of about 60 mesh for preventing foreign matter (for example, insects, sand, iron chips, etc.) from entering, or a primary pressure, is provided at an inner peripheral portion of the inlet (the pressure of the inflowing water is referred to as a primary pressure or a high pressure side). In many cases, a flow rate adjusting component or the like is incorporated so that the flow rate is substantially constant irrespective of the (dynamic pressure of the line).

【0006】例外もあるが、所定の通水量が毎分10L
未満の場合の流量調節部品に於いては、例えば、実公昭
59−28796号公報、実公昭62−18787号公
報等で開示されているように、上流側に樹脂成形部材
(例えば、ポリフェニレンオキサイド樹脂、ポリフェニ
レンエーテル樹脂、ポリアセタール樹脂)の硬質カップ
と、下流側に弾性部材(例えば、ニトリルゴム)の軟質
環状ディスク(以下、フロコンといい、略中央の貫通孔
に面取りを施したような円錐状傾斜凹形状が成形されて
いないものをいう。)とを備えている流量調節部品を設
置するのが一般的である。該流量調節部品に、一次圧が
低水圧(例えば、0.05〜0.10MPa又はそれ以
下)で供給される場合は、水圧により該硬質カップは該
フロコンを少し押圧する程度なので、該硬質カップに設
けられた流水通路(例えば、周設の場合はV溝、階段状
凹溝、その他。略中央部設の場合は貫通孔、その他。)
はそのまま確保されていて、所定の通水量以下の水が通
過する。又、一次圧が中水圧(例えば、0.10〜0.
50MPa程度)で供給される場合は、水圧により該硬
質カップは低水圧時よりも該フロコンを強く押圧し、該
硬質カップに設けられた該流水通路に該フロコンが食い
込んで該流水通路が狭まれて、所定の通水量又はそれ以
下の水が通過することになる。さらに、一次圧が高水圧
(例えば、0.50〜0.75MPa又はそれ以上)で
供給される場合は、水圧により該硬質カップはほとんど
該フロコンに食い込んでいて該流水通路がほとんど閉塞
されて、所定の通水量又はそれ以下の水が通過すること
になる。
[0006] Although there are exceptions, the predetermined flow rate is 10 L / min.
In the case of the flow rate control component in the case where the flow rate is less than, for example, as disclosed in Japanese Utility Model Publication No. Sho 59-28796 and Japanese Utility Model Publication No. Sho 62-18787, a resin molding member (for example, polyphenylene oxide resin) , A polyphenylene ether resin, a polyacetal resin), a hard cup, and an elastic member (for example, nitrile rubber) on the downstream side, a soft annular disk (hereinafter referred to as a flowcon, and a conical inclined shape in which a substantially central through hole is beveled. It is common to install a flow rate adjusting component having a concave shape. When the primary pressure is supplied to the flow rate adjusting component at a low water pressure (for example, 0.05 to 0.10 MPa or less), the water pressure causes the hard cup to slightly press the flow controller, (For example, a V-groove, a stepped groove, etc. in the case of a peripheral installation, a through-hole, etc. in the case of a substantially central portion)
Is kept as it is, and water less than a predetermined flow rate passes. In addition, the primary pressure is an intermediate water pressure (for example, 0.10 to 0.1).
When supplied at a pressure of about 50 MPa, the hard cup presses the floor controller more strongly than at the time of low water pressure due to water pressure, and the floor controller bites into the flowing water passage provided in the hard cup, thereby narrowing the flowing water passage. Thus, a predetermined amount of water or less is passed. Further, when the primary pressure is supplied at a high water pressure (for example, 0.50 to 0.75 MPa or more), the hard cup almost bites into the flowcon due to the water pressure, and the flowing water passage is almost blocked, A predetermined amount of water or less will pass through.

【0007】例外もあるが、所定の通水量が毎分10L
から毎分35L程度の場合の流量調節部品に於いては、
例えば、実開平2−102744号公報の図6及び図7
等で開示されているように、両側の端面の略中央の貫通
孔(オリフィスともいい、流水管路である。)に、水圧
又は流体の流量の変化により撓み、流水管路断面積が変
化しやすいように円錐状傾斜凹形状が成形されている弾
性部材(例えば、ニトリルゴム)の軟質環状ディスク
(以下、フローシートという。)と、無くても良いが樹
脂成形部材(例えば、ポリプロピレン樹脂、ポリアセタ
ール樹脂)の硬質カラー(逆流時の飛出防止用のフロー
シート支えである。)とで構成された流量調節部品を設
置するのが一般的である。該流量調節部品については、
水圧又は流体の流量の変化によりフローシートが撓み変
形して該略中央の貫通孔である流水管路が狭まれて、所
定の通水量又はそれ以下の水が通過することになる。
[0007] Although there are exceptions, the predetermined flow rate is 10 L / min.
From about 35L per minute
For example, FIG. 6 and FIG.
And the like, the through-hole (also called an orifice, which is a flowing water pipe) substantially at the center of both end surfaces is bent by a change in water pressure or a flow rate of a fluid, and the cross-sectional area of the flowing water pipe changes. A flexible annular disk (hereinafter, referred to as a flow sheet) made of an elastic member (for example, nitrile rubber) having a conical inclined concave shape so as to be easily formed, and a resin molded member (for example, polypropylene resin, polyacetal) which may be omitted. It is common to install a flow rate adjusting component composed of a hard collar (resin) (which is a flow sheet support for preventing fly-out at the time of backflow). About the flow rate adjustment component,
The flow sheet bends and deforms due to a change in the water pressure or the flow rate of the fluid, so that the flow pipe, which is the substantially central through-hole, is narrowed, and a predetermined amount of water or less flows through.

【0008】流入管路は、該流入口の水を流入室に誘導
する通路であるが、流入管路内でキャビテーションを発
生しやすくする(ダイヤフラム弁を主弁座から浮遊させ
る水撃圧を確保する)ために、管路を長くすることが多
い。又、該流量調整部品で水の流れが乱流になってしま
うので、キャビテーションをより発生しやすくするため
には一度整流させることが必要であり、流入管路内に整
流羽根(例えば、*字状)を設ける場合が多い。
The inflow conduit is a passage for guiding the water at the inflow port to the inflow chamber, and makes it easier to generate cavitation in the inflow conduit (ensures a water hammer pressure for floating the diaphragm valve from the main valve seat). In many cases, the pipeline is lengthened. In addition, since the flow of water becomes turbulent in the flow regulating component, it is necessary to rectify the flow once to make cavitation more likely to occur. ) Is often provided.

【0009】流入室は、弁本体の内壁と流出管路の外周
部とに囲まれた室をいい、ダイヤフラム弁に水の圧力を
伝播させる機能がある。通常、該流入管路内で発生した
キャビテーションは該流入室で消失されているが、流量
が少ない時の止水性能を向上させるために、流入室全体
にキャビテーションが行かないように、該流入管路の略
出口近辺の両側には、弁本体の内壁と流出管路の外周部
との間を仕切壁(リブ)にて仕切る場合が多い。該仕切
壁二枚で仕切られた流入室の一部を小室という。
The inflow chamber is a chamber surrounded by the inner wall of the valve body and the outer periphery of the outflow pipe, and has a function of transmitting water pressure to the diaphragm valve. Normally, the cavitation generated in the inflow pipe is lost in the inflow chamber.However, in order to improve the water stopping performance when the flow rate is small, the cavitation is prevented so that the entire inflow chamber does not undergo cavitation. A partition wall (rib) is often used to partition between the inner wall of the valve body and the outer peripheral portion of the outflow pipe on both sides near the approximate outlet of the passage. A part of the inflow chamber partitioned by the two partition walls is called a small chamber.

【0010】主弁座は、流出管路の端面部である。止水
性能の向上のために、ダイヤフラム弁が食い込みやすく
なる形状になっている。
[0010] The main valve seat is an end face of the outflow line. In order to improve the water stopping performance, the diaphragm valve is shaped so that it can easily bite.

【0011】流出口(流出する水の圧力を二次圧又は低
圧側という。)は流出管路の出口である。該流出口の外
周部には、給水ホース等の抜け止め用に、環状の凸部
(リブ)等がある。
The outlet (the pressure of the outflowing water is called the secondary pressure or low pressure side) is the outlet of the outlet line. On the outer peripheral portion of the outlet, there is an annular convex portion (rib) or the like for preventing a water supply hose or the like from coming off.

【0012】ダイヤフラム弁は、例えば、弾性部材(例
えば、シリコンゴム)の軟質ダイヤフラムに設けられた
少なくとも一個の***と一個の中穴に、樹脂成形部材
(例えば、ポリアセタール樹脂)の硬質ディスクの片面
に設けられた少なくとも一個の小突起と一個の中突起を
嵌挿することにより結合していて、該ダイヤフラム弁の
外周部には該小突起が飛び出ていて、該流入室と背圧室
(ガイドケース内部)を貫通するサイド・オリフィス
(小孔、ブリード孔ともいう。)を備え、該ダイヤフラ
ム弁の中央部には該中突起が飛び出ていて、該背圧室と
背圧室流出口を貫通するパイロット・オリフィス(中
孔)を備えている。該主弁座を閉鎖するように該ダイヤ
フラム弁を弁本体に設置する時は、該サイド・オリフィ
スが該小室の略中間部に来るようにする。何故ならば、
該流入管路内で発生したキャビテーションは、該小室で
極めて急激に圧縮されて消失し、急激な圧力上昇(水撃
圧)を起こし、該ダイヤフラム弁を該主弁座から浮遊さ
せたり、流入室の水を圧力差(=水撃圧−背圧室圧)に
より該サイド・オリフィスから該背圧室に流入させる原
動力になっていると推定されるためである。
The diaphragm valve is provided, for example, on at least one small hole and one medium hole provided in a soft diaphragm made of an elastic member (for example, silicone rubber), and on one surface of a hard disk made of a resin molded member (for example, polyacetal resin). At least one small projection provided and one middle projection are fitted and connected to each other. The small projection protrudes from the outer periphery of the diaphragm valve, and the inflow chamber and the back pressure chamber (guide case) The inside of the diaphragm valve is provided with a side orifice (also referred to as a small hole or a bleed hole), and the center projection of the diaphragm valve protrudes from the center and penetrates the back pressure chamber and the back pressure chamber outlet. It has a pilot orifice (medium hole). When the diaphragm valve is installed in the valve body so as to close the main valve seat, the side orifice is located substantially in the middle of the small chamber. because,
The cavitation generated in the inflow pipe is extremely rapidly compressed in the small chamber and disappears, causing a rapid pressure rise (water hammer pressure), causing the diaphragm valve to float from the main valve seat, This is because it is presumed that the water becomes the driving force to flow the water from the side orifice into the back pressure chamber due to the pressure difference (= water hammer pressure−back pressure chamber pressure).

【0013】さて、該ソレノイドに電流を流すと、該ソ
レノイドの内側に設置された該ガイドケース内の略中央
部に該プランジャが吸引されて、該パイロット・オリフ
ィスを閉鎖していた該プランジャシートが離れる。する
と、流入室の水は該サイド・オリフィスから該背圧室に
流入し、該パイロット・オリフィス、該背圧室流出口を
通り、該流出管路、該流出口に流出する。この通路が開
通されると、該背圧室の水の圧力の下降と流入室の水の
圧力とで該ダイヤフラム弁が該主弁座から若干浮遊す
る。該サイド・オリフィスから該背圧室に流入する水
は、該サイド・オリフィスで一端収縮することから圧力
が低下しキャビテーションが起こしている。該背圧室の
水は、キャビテーションの消失により急激な圧力上昇
(水撃圧)が起こっていて、該主弁座から浮遊される該
ダイヤフラム弁を常に押圧しながら、該流出管路、該流
出口に流出しているものと推定される。そして、流入室
の大部分の水は該主弁座、該流出管路、該流出口に流出
しているので、ラインの静水圧の水は、動水圧まで下が
り流水状態となる。該流入口に組み込まれた流量制御用
の流量調整部品により、水は一端収縮することから圧力
が低下し該流入管路内でキャビテーションが起こり、該
流入室で消失し、急激な圧力上昇(水撃圧)を起こし、
該ダイヤフラム弁を該主弁座から浮遊させているものと
推定される。又、急激な圧力上昇に伴い発生する圧力波
等は、水の流れが、該流入口から該流出口の流路を通り
流出されているので、ライン側には伝搬されない(又は
伝搬量が少ない)ものと推定される。よって、従来弁の
開弁動作中は、ラインの動水圧(流量が多いと下がる)
は安定している。参考ではあるが、該流量調整部品が設
置されていない場合、ラインの動水圧での従来弁の圧力
損失(=一次圧−二次圧)は0.01MPa〜0.02
MPaであるので、キャビテーション消失後は、殆ど一
次圧まで回復することが判る。
When an electric current is applied to the solenoid, the plunger is attracted to a substantially central portion in the guide case installed inside the solenoid, and the plunger sheet closing the pilot orifice is removed. Leave. Then, the water in the inflow chamber flows into the back pressure chamber from the side orifice, passes through the pilot orifice and the back pressure chamber outlet, and flows out to the outlet pipe and the outlet. When this passage is opened, the diaphragm valve slightly floats from the main valve seat due to the decrease in the pressure of the water in the back pressure chamber and the pressure of the water in the inflow chamber. The water flowing into the back pressure chamber from the side orifice contracts once at the side orifice, so that the pressure is reduced and cavitation occurs. The water in the back pressure chamber has a rapid pressure rise (water hammer pressure) due to the disappearance of cavitation, and while constantly pressing the diaphragm valve floating from the main valve seat, the water in the outflow conduit, the flow It is estimated that it has flown to the exit. And, since most of the water in the inflow chamber flows out to the main valve seat, the outflow pipe, and the outflow port, the hydrostatic water in the line falls to the dynamic water pressure and becomes a flowing state. Due to the flow control components incorporated in the inlet for controlling the flow, the water is once contracted, the pressure is reduced, cavitation occurs in the inflow pipe, the water disappears in the inflow chamber, and a sharp pressure rise (water Pressure)
It is estimated that the diaphragm valve is floating from the main valve seat. Further, a pressure wave or the like generated due to a rapid pressure rise is not propagated to the line side (or the amount of propagation is small) since the flow of water flows out from the inlet through the flow path of the outlet. ) Is assumed. Therefore, during the valve opening operation of the conventional valve, the hydraulic pressure of the line (decreases when the flow rate is large)
Is stable. For reference, when the flow rate adjusting component is not installed, the pressure loss (= primary pressure−secondary pressure) of the conventional valve at the line hydraulic pressure is 0.01 MPa to 0.02 MPa.
Since the pressure is MPa, it can be seen that the pressure almost recovers to the primary pressure after the cavitation disappears.

【0014】次に、該ソレノイドに電流を流すのを止め
ると、該コイルスプリングにより該プランジャが定位に
復旧し、該プランジャシートが該パイロット・オリフィ
スを閉鎖する。すると、該サイド・オリフィスから該背
圧室に流入している水は行き場を無くすが、前記のよう
に該背圧室では、キャビテーションの消失により急激な
圧力上昇(水撃圧)が起こっているので、該主弁座から
浮遊していた該ダイヤフラム弁を該主弁座に押圧するよ
うになる。そして、該主弁座が該ダイヤフラム弁で急閉
鎖されて止水され、流入室の水は該サイド・オリフィス
から該背圧室に流入することができなくなって、従来弁
の閉弁動作が完了する。
Next, when the current is stopped flowing through the solenoid, the plunger is restored to the normal position by the coil spring, and the plunger seat closes the pilot orifice. Then, the water flowing into the back pressure chamber from the side orifice loses its destination, but as described above, a sharp pressure rise (water hammer pressure) occurs in the back pressure chamber due to disappearance of cavitation. Therefore, the diaphragm valve floating from the main valve seat is pressed against the main valve seat. Then, the main valve seat is suddenly closed by the diaphragm valve to stop water, and the water in the inflow chamber cannot flow into the back pressure chamber from the side orifice, and the valve closing operation of the conventional valve is completed. I do.

【0015】止水と同時に、該流入室内のキャビテーシ
ョンの消失による急激な圧力上昇(水撃圧)に伴い発生
する圧力波等は、反射されてライン側には伝搬されるも
のと推定される。ラインに逆止弁が無い場合は、水撃圧
の圧力波はライン内を往復し、次第に減衰する(この現
象を水撃という。)ので、従来弁は水漏れ、変形、破損
その他の異常を生じることは少ない。(但し、ラインに
影響を及ぼす可能性はある。)ラインに逆止弁が有る場
合は、逃げ道が無いので水撃圧が減衰しないまま、従来
弁の内部に圧籠もりしてしまうので、従来弁は水漏れ、
変形、破損その他の異常を生じてしまう。
At the same time as the water stoppage, it is presumed that pressure waves and the like generated due to a rapid pressure rise (water hammer pressure) due to disappearance of cavitation in the inflow chamber are reflected and propagated to the line side. If there is no check valve in the line, the pressure wave of the water hammer pressure reciprocates in the line and gradually attenuates (this phenomenon is called water hammer), so the conventional valve can prevent water leakage, deformation, breakage and other abnormalities. It is unlikely to occur. (However, this may affect the line.) If there is a check valve in the line, there is no escape path, so the water hammer pressure will not be attenuated and the inside of the conventional valve will be indented. Valve leaks,
Deformation, breakage and other abnormalities will occur.

【0016】ここで、ラインから伝搬してくる水撃の頻
度を調査してみた。 a.冬場は発生しにくい。 b.夏場に多く発生している。 c.ライン、水道管又は水栓に逆止弁が入れられている
地域に多い。 d.ラインの水圧が0.80MPa以上の地域に多い。 e.2階設置の給水器具に多い。 これを纏めて見ると、夏場の昼中の2階の水は、水道管
も気温も共に上昇しやすいので、略40〜50℃になっ
ているから水撃の頻度が多いと考えられる。
Here, the frequency of water hammer propagating from the line was investigated. a. Less likely to occur in winter. b. It occurs frequently in summer. c. It is common in areas where check valves are installed in lines, water pipes or faucets. d. It is common in areas where the water pressure of the line is 0.80 MPa or more. e. It is common in water supply equipment on the second floor. In summary, the water on the second floor during the daytime in the summer is about 40-50 ° C because both the water pipe and the temperature tend to rise, so it is considered that the frequency of water hammer is high.

【0017】ところで、水撃とは別に、キャビテーショ
ンの発生により、何故急激な圧力上昇が起こるのか解析
してみる。まず、水の性質として、標準の1気圧の圧力
の下では、水の最大密度は4℃で、水温上昇と共に2次
曲線的に密度が減少することが知られている。又、空気
は圧縮できるが、水は圧縮できないと言われているが、
水の体積は50℃で最小(圧縮率は最大)になり、その
前後では2次曲線的に体積が増加するカーブを描くこと
も知られている。水(水道水)には、例えば、金属であ
るカルシウム、マグネシウム、ナトリウムの溶解性不純
物が溶け込んでいるが、空気を構成する酸素、窒素、二
酸化炭素、水素、水蒸気等の気体も溶け込んでいる。上
記の水の性質を勘案すると、水温により気体含有量が異
なっていることが想像される。実験等により、水に含有
される気体は圧力に比例することが知られている。水の
圧力を下げるとその中に溶けていた気体は一部元の気体
の形に戻る。又、水を例にとると水は1気圧の圧力の下
においては、100℃の温度で沸騰して蒸気になるが、
この温度も圧力によって異なり、圧力が低下すると低い
温度でも蒸気になる。以上のようであるから、流れの中
で圧力の低い所が出来ると、水に含有される気体が遊離
し、それに伴って蒸気が発生して蒸気泡或いは水の無い
空所が出来る。これをキャビテーション(空洞)とい
う。水に含有される気体が多い場合にはキャビテーショ
ンが発生しやすく、水に含有される気体が少ない場合に
はキャビテーションが発生しにくい。
By the way, apart from the water hammer, an analysis will be made as to why a sudden pressure rise occurs due to the occurrence of cavitation. First, as the properties of water, it is known that under a standard pressure of 1 atm, the maximum density of water is 4 ° C., and the density decreases in a quadratic curve as the water temperature increases. It is said that air can be compressed, but water cannot.
It is also known that the volume of water becomes minimum (the maximum compression ratio) at 50 ° C., and before and after that, a curve whose volume increases as a quadratic curve is drawn. In water (tap water), for example, soluble impurities of metals such as calcium, magnesium, and sodium are dissolved, but gases such as oxygen, nitrogen, carbon dioxide, hydrogen, and water vapor that constitute air are also dissolved therein. In consideration of the above-mentioned properties of water, it is conceivable that the gas content differs depending on the water temperature. It is known from experiments and the like that the gas contained in water is proportional to the pressure. When the pressure of the water is reduced, some of the dissolved gas returns to its original form. Also, taking water as an example, water boils at a temperature of 100 ° C. under a pressure of 1 atm to form steam.
This temperature also depends on the pressure, and when the pressure decreases, it becomes steam even at a low temperature. As described above, when a place having a low pressure is formed in the flow, the gas contained in the water is liberated, and accordingly, steam is generated, so that a steam bubble or a space without water is formed. This is called cavitation. Cavitation is likely to occur when the amount of gas contained in the water is large, and cavitation is unlikely to occur when the amount of gas contained in the water is small.

【0018】さて、止水時の水撃圧や、ラインから伝搬
して来て減衰しない水撃圧等を下げる為に、水の一部を
流入室から流出口に流出させるリリーフ弁機構を、弁本
体に設置したものが提案されている。例えば、特開昭5
8−163784号、特開平5−154284号、特開
平8−178125号等に開示されている技術がある。
Now, in order to reduce the water hammer pressure at the time of stopping water and the water hammer pressure that propagates from the line and does not attenuate, etc., a relief valve mechanism that allows a part of water to flow from the inflow chamber to the outflow port is provided. One installed on the valve body has been proposed. For example, JP
There are techniques disclosed in JP-A-8-163784, JP-A-5-154284, JP-A-8-178125, and the like.

【0019】[0019]

【発明が解決しようとする課題】しかしながら、リリー
フ弁機構の作動圧力設定は、コイルスプリング(例え
ば、ステンレススチール線)のバネ定数で固定(例え
ば、1.20MPa)されているので、例えば、ライン
の静水圧が高い(例えば、1.20MPa)地域では、
止水時の水撃圧や、ラインから伝搬して来て減衰しない
水撃圧等が無くても、リリーフ弁機構の作動バラツキ
(コイルスプリングのバネ定数等のバラツキ)により、
リリーフ弁機構が作動して、止水不良と間違われるよう
な放水状態が有り得るという問題点がある。
However, the setting of the operating pressure of the relief valve mechanism is fixed (for example, 1.20 MPa) by the spring constant of a coil spring (for example, stainless steel wire). In areas where the hydrostatic pressure is high (eg, 1.20 MPa),
Even if there is no water hammer pressure at the time of stopping water or water hammer pressure that propagates from the line and does not attenuate, etc., due to the variation in the operation of the relief valve mechanism (variation in the spring constant of the coil spring, etc.),
There is a problem that the relief valve mechanism operates, and there may be a water discharge state that may be mistaken for poor water stoppage.

【0020】本発明は、従来の技術の有するこのような
問題点を鑑みてなされたものであり、その目的とすると
ころは、水の一部を流入室から流出口に流出させるリリ
ーフ弁機構を弁本体に設置しなくても、水に含有する気
体を流出口に流出させることにより、流入室の水の圧力
(水撃圧)を所定圧以下に下げることができるパイロッ
ト方式の電磁式給水弁を提供しようとするものである。
The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide a relief valve mechanism for discharging a part of water from an inflow chamber to an outflow port. A pilot-type electromagnetic water supply valve that can reduce the pressure of water in the inflow chamber (water hammer pressure) to a predetermined pressure or less by letting the gas contained in the water flow out to the outlet without installing it in the valve body. It is intended to provide.

【0021】[0021]

【課題を解決するための手段】上記目的を達成するため
に、本発明のパイロット方式の電磁式給水弁は、流入
口、流入管路、流入室、流出管路、流出口を一体成形し
た弁本体に、水は通過できないが水に含有される気体は
通過できる高密度部材で形成した主弁座を該弁本体の該
流出管路に固着し、該主弁座を閉鎖するようにダイヤフ
ラム弁を設置し、該弁本体に該ダイヤフラム弁の液密パ
ッキン部を押圧するようにガイドケースを押止め、該ガ
イドケースの内周には該ダイヤフラム弁のパイロット・
オリフィスが閉鎖されるように、プランジャシートが固
定されたプランジャと、該プランジャを常時弾発付勢し
ているコイルスプリングを収納し、該ガイドケースの外
周にはソレノイドを設置して構成されたパイロット方式
の電磁式給水弁であって、流入室の水の圧力が所定圧以
上のとき、該流入室の水に含有される気体の一部を該高
密度部材(主弁座)から流出口に通気させ、該流入室の
水の圧力を下げることを特徴とするを特徴とする。前記
高密度部材がエンジニアリングプラスチック基材、又は
セラミック基材、又は金属基材、又はガラス基材、又は
不織布基材、又は不織紙基材であることを特徴とする。
又は、前記高密度部材がエンジニアリングプラスチック
基材、又はセラミック基材、又は金属基材、又はガラス
基材、又は不織布基材、又は不織紙基材と、エンジニア
リングプラスチックと、の積層構造又は複合構造である
ことを特徴とする。
In order to achieve the above object, a pilot type electromagnetic water supply valve according to the present invention is a valve in which an inlet, an inlet pipe, an inlet chamber, an outlet pipe, and an outlet are integrally formed. A main valve seat formed of a high-density member that cannot pass water but can pass gas contained in water is fixed to the outflow line of the valve main body, and the diaphragm valve is configured to close the main valve seat. And a guide case is pressed against the valve body so as to press the liquid-tight packing portion of the diaphragm valve, and a pilot valve of the diaphragm valve is provided on the inner periphery of the guide case.
A pilot configured to house a plunger to which a plunger sheet is fixed so as to close the orifice and a coil spring that constantly urges the plunger, and a solenoid is installed on the outer periphery of the guide case. An electromagnetic type water supply valve, wherein when the pressure of the water in the inflow chamber is equal to or higher than a predetermined pressure, a part of the gas contained in the water in the inflow chamber is transferred from the high-density member (main valve seat) to the outflow port. Ventilation is performed to reduce the pressure of water in the inflow chamber. The high-density member is an engineering plastic substrate, a ceramic substrate, a metal substrate, a glass substrate, a nonwoven fabric substrate, or a nonwoven paper substrate.
Or, the high-density member is an engineering plastic substrate, or a ceramic substrate, or a metal substrate, or a glass substrate, or a nonwoven fabric substrate, or a nonwoven paper substrate, and a laminated structure or a composite structure of an engineering plastic. It is characterized by being.

【0022】[0022]

【発明の実施の形態】発明の実施の形態について図面を
参照して説明する。図1は本発明のパイロット方式の電
磁式給水弁10の縦断面図である。本発明のパイロット
方式の電磁式給水弁10は、流入口11と、流入管路1
2と、流入室13と、流出管路14と、流出口16と、
を一体成形した弁本体17(該弁本体17は樹脂製でも
真鍮製でも良い。)に、水は通過できないが水に含有さ
れる気体(ガス)は通過できる高密度部材で形成した主
弁座15を該弁本体17の該流出管路14に固着し、該
主弁座15を閉塞するように、流入する水圧で変位可能
なダイヤフラム弁30を設置し、弁本体17にダイヤフ
ラム弁30の液密パッキン部33を押圧するようにガイ
ドケース40を押止め、該ガイドケース40の内周に
は、該ダイヤフラム弁30のパイロット・オリフィス2
7を閉塞するようにプランジャシート41が固定された
プランジャ42と、該プランジャ42を押圧しているコ
イルスプリング43を収納し、該ガイドケース40の外
周には、マグネット・ワイヤーと呼ばれる銅線44を円
筒状のボビン45に巻いて端子片46に接続したソレノ
イド47を設置したものである。
Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view of a pilot type electromagnetic water supply valve 10 of the present invention. The pilot type electromagnetic water supply valve 10 of the present invention includes an inflow port 11 and an inflow pipe 1.
2, an inflow chamber 13, an outflow pipe 14, an outflow port 16,
A main valve seat formed of a high-density member that cannot pass water but can pass a gas (gas) contained in water into a valve body 17 (the valve body 17 may be made of resin or brass) integrally formed of 15 is fixed to the outflow line 14 of the valve body 17, and a diaphragm valve 30 that can be displaced by the flowing water pressure is installed so as to close the main valve seat 15, and the liquid of the diaphragm valve 30 is attached to the valve body 17. The guide case 40 is pressed so as to press the dense packing portion 33, and the pilot orifice 2 of the diaphragm valve 30 is provided on the inner periphery of the guide case 40.
A plunger 42 to which a plunger sheet 41 is fixed so as to close the plunger 7 and a coil spring 43 pressing the plunger 42 are housed. A copper wire 44 called a magnet wire is provided around the guide case 40. A solenoid 47 connected to a terminal piece 46 wound around a cylindrical bobbin 45 is provided.

【0023】主弁座15を形成する高密度部材は、骨材
+膜材質等で形成されたものを採用したが、他の構成で
も良い。骨材にはエンジニアリングプラスチック基材、
又はガラス入りエンジニアリングプラスチック基材等が
あるが、用途又は仕様に合わせて、エンジニアリングプ
ラスチック基材、又はセラミック基材、又は金属基材、
又はガラス基材、又は不織布基材、又は不織紙基材と、
エンジニアリングプラスチックと、の積層構造又は複合
構造としたものを選択すると良い。膜材質にはエンジニ
アリングプラスチック基材、又はセラミック基材、又は
金属基材、又はガラス基材、又は不織布基材、又は不織
紙基材等があるが、用途又は仕様に合わせて、エンジニ
アリングプラスチック基材、又はセラミック基材、又は
金属基材、又はガラス基材、又は不織布基材、又は不織
紙基材と、エンジニアリングプラスチックと、の積層構
造又は複合構造としたものを選択すると良い。
Although the high-density member forming the main valve seat 15 is formed of an aggregate + membrane material or the like, another structure may be used. The aggregate is made of engineering plastic base material,
Or there is an engineering plastic substrate containing glass, etc., according to the application or specifications, engineering plastic substrate, or ceramic substrate, or metal substrate,
Or a glass substrate, or a nonwoven substrate, or a nonwoven paper substrate,
It is preferable to select a laminated structure or a composite structure of engineering plastics. The membrane material includes an engineering plastic substrate, a ceramic substrate, a metal substrate, a glass substrate, a nonwoven fabric substrate, or a non-woven paper substrate. It is preferable to select a laminated structure or a composite structure of a material, a ceramic substrate, a metal substrate, a glass substrate, a nonwoven fabric substrate, or a nonwoven paper substrate, and an engineering plastic.

【0024】以上、本発明の好適な実施の形態について
種々の組合せ等を述べてきたが、本発明は上述する実施
の形態に限定されるものでなく、発明の精神を逸脱しな
い範囲で多くの組合せ、改変等を施し得るのはもちろん
である。本発明のパイロット方式の電磁式給水弁10
は、単体式のものを開示したが、例えば、2連式又は3
連式等の多連式のパイロット方式の電磁式給水弁であっ
ても良い。
As described above, various combinations and the like of the preferred embodiments of the present invention have been described. However, the present invention is not limited to the above-described embodiments, and a number of combinations are possible without departing from the spirit of the invention. Needless to say, combinations, modifications and the like can be made. Pilot type electromagnetic water supply valve 10 of the present invention
Has disclosed a single type, but for example, a double type or a three type
It may be a multiple pilot type solenoid type water supply valve such as a continuous type.

【0025】[0025]

【発明の効果】本発明のパイロット方式の電磁式給水弁
においては、水の一部を流入室から流出口に流出させる
リリーフ弁機構を弁本体に設置しなくても、水に含有す
る気体を流出口に流出させることにより、流入室の水の
圧力(水撃圧)を所定圧以下に下げることができるとい
う効果を奏する。
According to the pilot type electromagnetic water supply valve of the present invention, the gas contained in the water can be removed without installing a relief valve mechanism in the valve body for discharging a part of the water from the inflow chamber to the outflow port. By causing the water to flow out to the outlet, the pressure of the water in the inflow chamber (water hammer pressure) can be reduced to a predetermined pressure or less.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明のパイロット方式の電磁式給水弁の縦断
面図である。
FIG. 1 is a longitudinal sectional view of a pilot type electromagnetic water supply valve of the present invention.

【符号の説明】[Explanation of symbols]

10…電磁式給水弁、11…流入口、12…流入管路、
13…流入室、14…流出管路、15…主弁座、16…
流出口、17…弁本体、27…パイロット・オリフィ
ス、30…ダイヤフラム弁、33…液密パッキン部、4
0…ガイドケース、41…プランジャシート、42…プ
ランジャ、43…コイルスプリング、44…銅線、45
…円筒状のボビン、46…端子片、47…ソレノイド
10: electromagnetic water supply valve, 11: inflow port, 12: inflow pipe,
13 ... inflow chamber, 14 ... outflow line, 15 ... main valve seat, 16 ...
Outflow port, 17: Valve body, 27: Pilot orifice, 30: Diaphragm valve, 33: Liquid tight packing part, 4
0: guide case, 41: plunger sheet, 42: plunger, 43: coil spring, 44: copper wire, 45
... cylindrical bobbin, 46 ... terminal strip, 47 ... solenoid

─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───

【手続補正書】[Procedure amendment]

【提出日】平成12年1月21日(2000.1.2
1)
[Submission date] January 21, 2000 (2000.1.2
1)

【手続補正1】[Procedure amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】0021[Correction target item name] 0021

【補正方法】変更[Correction method] Change

【補正内容】[Correction contents]

【0021】[0021]

【課題を解決するための手段】上記目的を達成するため
に、本発明のパイロット方式の電磁式給水弁は、流入
口、流入管路、流入室、流出管路、流出口を一体成形し
た弁本体に、水は通過できないが水に含有される気体は
通過できる高密度部材で形成した主弁座を該弁本体の該
流出管路に固着し、該主弁座を閉鎖するようにダイヤフ
ラム弁を設置し、該弁本体に該ダイヤフラム弁の液密パ
ッキン部を押圧するようにガイドケースを押止め、該ガ
イドケースの内周には該ダイヤフラム弁のパイロット・
オリフィスが閉鎖されるように、プランジャシートが固
定されたプランジャと、該プランジャを常時弾発付勢し
ているコイルスプリングを収納し、該ガイドケースの外
周にはソレノイドを設置して構成されたパイロット方式
の電磁式給水弁であって、流入室の水の圧力が所定圧以
上のとき、該流入室の水に含有される気体の一部を該高
密度部材(主弁座)から流出口に通気させ、該流入室の
水の圧力を下げることを特徴とする。前記高密度部材が
エンジニアリングプラスチック基材、又はセラミック基
材、又は金属基材、又はガラス基材、又は不織布基材、
又は不織紙基材であることを特徴とする。又は、前記高
密度部材がエンジニアリングプラスチック基材、又はセ
ラミック基材、又は金属基材、又はガラス基材、又は不
織布基材、又は不織紙基材と、エンジニアリングプラス
チックと、の積層構造又は複合構造であることを特徴と
する。
In order to achieve the above object, a pilot type electromagnetic water supply valve according to the present invention is a valve in which an inlet, an inlet pipe, an inlet chamber, an outlet pipe, and an outlet are integrally formed. A main valve seat formed of a high-density member that cannot pass water but can pass gas contained in water is fixed to the outflow line of the valve main body, and the diaphragm valve is configured to close the main valve seat. And a guide case is pressed against the valve body so as to press the liquid-tight packing portion of the diaphragm valve, and a pilot valve of the diaphragm valve is provided on the inner periphery of the guide case.
A pilot configured to house a plunger to which a plunger sheet is fixed so as to close the orifice and a coil spring that constantly urges the plunger, and a solenoid is installed on the outer periphery of the guide case. An electromagnetic type water supply valve, wherein when the pressure of the water in the inflow chamber is equal to or higher than a predetermined pressure, a part of the gas contained in the water in the inflow chamber is transferred from the high-density member (main valve seat) to the outflow port. vented, and wherein reducing the pressure of the water flow entry. The high-density member is an engineering plastic substrate, or a ceramic substrate, or a metal substrate, or a glass substrate, or a nonwoven fabric substrate,
Alternatively, it is a non-woven paper base material. Or, the high-density member is an engineering plastic substrate, or a ceramic substrate, or a metal substrate, or a glass substrate, or a nonwoven fabric substrate, or a nonwoven paper substrate, and a laminated structure or a composite structure of an engineering plastic. It is characterized by being.

Claims (8)

【特許請求の範囲】[Claims] 【請求項1】 流入口、流入管路、流入室、流出管路、
流出口を一体成形した弁本体に、水は通過できないが水
に含有される気体は通過できる高密度部材で形成した主
弁座を該弁本体の該流出管路に固着し、該主弁座を閉鎖
するようにダイヤフラム弁を設置し、該弁本体に該ダイ
ヤフラム弁の液密パッキン部を押圧するようにガイドケ
ースを押止め、該ガイドケースの内周には該ダイヤフラ
ム弁のパイロット・オリフィスが閉鎖されるように、プ
ランジャシートが固定されたプランジャと、該プランジ
ャを常時弾発付勢しているコイルスプリングを収納し、
該ガイドケースの外周にはソレノイドを設置して構成さ
れたパイロット方式の電磁式給水弁において、流入室の
水の圧力が所定圧以上のとき、該流入室の水に含有され
る気体の一部を該高密度部材(主弁座)から流出口に通
気させ、該流入室の水の圧力を下げることを特徴とする
パイロット方式の電磁式給水弁。
An inlet, an inflow line, an inflow chamber, an outflow line,
A main valve seat formed of a high-density member that cannot pass water but can pass gas contained in water is fixed to the outflow line of the valve main body, and the main valve seat is formed in the valve body integrally formed with the outflow port. A diaphragm valve is installed so as to close the valve body, a guide case is pressed against the valve body so as to press a liquid-tight packing portion of the diaphragm valve, and a pilot orifice of the diaphragm valve is provided on an inner periphery of the guide case. A plunger to which the plunger sheet is fixed and a coil spring that constantly urges the plunger are stored so as to be closed,
In a pilot-type electromagnetic water supply valve configured by installing a solenoid on the outer periphery of the guide case, when the pressure of the water in the inflow chamber is equal to or higher than a predetermined pressure, a part of the gas contained in the water in the inflow chamber A pilot-type electromagnetic water supply valve characterized in that air is vented from the high-density member (main valve seat) to the outlet to reduce the pressure of water in the inflow chamber.
【請求項2】 請求項1記載の高密度部材がエンジニア
リングプラスチック基材であることを特徴とするパイロ
ット方式の電磁式給水弁。
2. A pilot-type electromagnetic water supply valve, wherein the high-density member according to claim 1 is an engineering plastic base material.
【請求項3】 請求項1記載の高密度部材がセラミック
基材であることを特徴とするパイロット方式の電磁式給
水弁。
3. A pilot-type electromagnetic water supply valve, wherein the high-density member according to claim 1 is a ceramic base material.
【請求項4】 請求項1記載の高密度部材が金属基材で
あることを特徴とするパイロット方式の電磁式給水弁。
4. A pilot-type electromagnetic water supply valve, wherein the high-density member according to claim 1 is a metal substrate.
【請求項5】 請求項1記載の高密度部材がガラス基材
であることを特徴とするパイロット方式の電磁式給水
弁。
5. A pilot-type electromagnetic water supply valve, wherein the high-density member according to claim 1 is a glass substrate.
【請求項6】 請求項1記載の高密度部材が不織布基材
であることを特徴とするパイロット方式の電磁式給水
弁。
6. A pilot-type electromagnetic water supply valve, wherein the high-density member according to claim 1 is a nonwoven fabric base material.
【請求項7】 請求項1記載の高密度部材が不織紙基材
であることを特徴とするパイロット方式の電磁式給水
弁。
7. A pilot-type electromagnetic water supply valve, wherein the high-density member according to claim 1 is a non-woven paper base material.
【請求項8】 請求項1記載の高密度部材が請求項2、
3、4、5、6又7記載の基材とエンジニアリングプラ
スチックとの積層構造又は複合構造であることを特徴と
するパイロット方式の電磁式給水弁。
8. The high-density member according to claim 1, wherein
A pilot-type electromagnetic water supply valve having a laminated structure or a composite structure of the base material described in 3, 4, 5, 6, or 7 and an engineering plastic.
JP35675199A 1999-12-16 1999-12-16 Solenoid feed valve Pending JP2001173828A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP35675199A JP2001173828A (en) 1999-12-16 1999-12-16 Solenoid feed valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP35675199A JP2001173828A (en) 1999-12-16 1999-12-16 Solenoid feed valve

Publications (1)

Publication Number Publication Date
JP2001173828A true JP2001173828A (en) 2001-06-29

Family

ID=18450597

Family Applications (1)

Application Number Title Priority Date Filing Date
JP35675199A Pending JP2001173828A (en) 1999-12-16 1999-12-16 Solenoid feed valve

Country Status (1)

Country Link
JP (1) JP2001173828A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007247823A (en) * 2006-03-17 2007-09-27 Rinnai Corp Pilot operated water solenoid valve
CN100464037C (en) * 2005-11-03 2009-02-25 黄顺治 Structure improved compression water carriage equipment with constant pressure control valve in pressing-maintaining type
CN108869841A (en) * 2017-05-13 2018-11-23 杭州神林电子有限公司 Electromagnetic water inlet valve
CN110872765A (en) * 2018-08-29 2020-03-10 无锡小天鹅电器有限公司 Pressure relief device and clothes treatment device
CN110966451A (en) * 2019-12-24 2020-04-07 苏州荔记得机械工程科技有限公司 Electromagnetic locking pressure reducing valve
KR20200051935A (en) * 2018-11-06 2020-05-14 현대자동차주식회사 Check valve

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100464037C (en) * 2005-11-03 2009-02-25 黄顺治 Structure improved compression water carriage equipment with constant pressure control valve in pressing-maintaining type
JP2007247823A (en) * 2006-03-17 2007-09-27 Rinnai Corp Pilot operated water solenoid valve
CN108869841A (en) * 2017-05-13 2018-11-23 杭州神林电子有限公司 Electromagnetic water inlet valve
CN110872765A (en) * 2018-08-29 2020-03-10 无锡小天鹅电器有限公司 Pressure relief device and clothes treatment device
KR20200051935A (en) * 2018-11-06 2020-05-14 현대자동차주식회사 Check valve
KR102598540B1 (en) * 2018-11-06 2023-11-03 현대자동차주식회사 Check valve
CN110966451A (en) * 2019-12-24 2020-04-07 苏州荔记得机械工程科技有限公司 Electromagnetic locking pressure reducing valve

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