JPH08292815A - Pressure reducing valve and hot water supply facility - Google Patents
Pressure reducing valve and hot water supply facilityInfo
- Publication number
- JPH08292815A JPH08292815A JP9503595A JP9503595A JPH08292815A JP H08292815 A JPH08292815 A JP H08292815A JP 9503595 A JP9503595 A JP 9503595A JP 9503595 A JP9503595 A JP 9503595A JP H08292815 A JPH08292815 A JP H08292815A
- Authority
- JP
- Japan
- Prior art keywords
- pressure reducing
- hot water
- reducing valve
- water supply
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Fluid-Driven Valves (AREA)
- Details Of Fluid Heaters (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は減圧弁及びそれを用いた
給湯設備に関する。詳しくは、給湯器から給水側への湯
（膨張水）の流出を防止するようにした給湯設備と、そ
れに用いられる減圧弁に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure reducing valve and hot water supply equipment using the same. More specifically, the present invention relates to a hot water supply facility that prevents hot water (expanded water) from flowing out of the hot water supply device to the water supply side, and a pressure reducing valve used for the hot water supply facility.
【０００２】[0002]
【従来の技術】従来の減圧弁と、それを用いた給湯設備
について第３，４図を参照して説明する。第３図は減圧
弁１０の断面図であり、水はバルブボディー１２の流入
ポート１４からストレーナ１５を通り、逆止弁１６を押
し上げ、隔壁１８に設けられた減圧ポート２０に達す
る。減圧ポート２０の２次側に減圧弁体２２が配置され
ている。2. Description of the Related Art A conventional pressure reducing valve and hot water supply equipment using the same will be described with reference to FIGS. FIG. 3 is a cross-sectional view of the pressure reducing valve 10. Water passes from the inflow port 14 of the valve body 12 through the strainer 15, pushes up the check valve 16, and reaches the pressure reducing port 20 provided in the partition wall 18. A pressure reducing valve body 22 is arranged on the secondary side of the pressure reducing port 20.
【０００３】この減圧弁体２２は弁軸２４の一端に弁体
カバー２４ａ、ワッシャ２４ｂ及びナット２４ｃによっ
て保持されている。弁軸２４の途中部分は、筒状の減圧
弁体保持部２６に摺動自在に保持されている。弁軸２４
の他端は吐出水圧調節バネ２８によって第３図の下方に
付勢されている。このバネ２８はバネ圧調節ネジ３０に
反力を得て該バネ２８を押圧している。The pressure reducing valve body 22 is held at one end of a valve shaft 24 by a valve body cover 24a, a washer 24b and a nut 24c. An intermediate portion of the valve shaft 24 is slidably held by a tubular pressure reducing valve body holding portion 26. Valve shaft 24
The other end of is urged downward by a discharge water pressure adjusting spring 28 in FIG. The spring 28 presses the spring 28 by obtaining a reaction force from the spring pressure adjusting screw 30.
【０００４】このバネ２８は、バネカバー３２とダイヤ
フラム３４とで囲まれたバネ設置室３６内に配置されて
いる。ダイヤフラム３４の外周部はバネカバー３２とバ
ルブボディー１０との間に挟持されている。ダイヤフラ
ム３４の中央の開口の縁部が弁軸２４のフランジ２４ａ
とワッシャ３７及びナット３８との間に挟持されてい
る。The spring 28 is arranged in a spring installation chamber 36 surrounded by a spring cover 32 and a diaphragm 34. The outer peripheral portion of the diaphragm 34 is sandwiched between the spring cover 32 and the valve body 10. The edge of the central opening of the diaphragm 34 is the flange 24a of the valve shaft 24.
And the washer 37 and the nut 38.
【０００５】給水圧が高いときには、ダイヤフラム３４
が水圧によって第３図の上方に押圧移動され、減圧弁体
２２が減圧ポート２０に近づき、流出ポート４０からの
吐出水圧が設定圧となるように低下される。この設定圧
は、調節ネジ３０を回すことにより調節される。When the water supply pressure is high, the diaphragm 34
Is pushed upward by the water pressure, the pressure reducing valve body 22 approaches the pressure reducing port 20, and the water pressure discharged from the outflow port 40 is reduced to the set pressure. This set pressure is adjusted by turning the adjusting screw 30.
【０００６】バルブボディー１０には、減圧弁体２２を
保持した弁軸２４を該バルブボディー１０内に挿入する
ための開口４２が設けられている。この開口４２はＯリ
ング４４を保持したキャップ４６により閉鎖されてい
る。The valve body 10 is provided with an opening 42 for inserting the valve shaft 24 holding the pressure reducing valve body 22 into the valve body 10. The opening 42 is closed by a cap 46 holding an O-ring 44.
【０００７】なお、流入ポート１４の上流側の吐水栓を
閉めた後、水抜き棒４８を押して逆止弁１６を押し上げ
ることにより、減圧弁１０内の水を、ストレーナキャッ
プ５０に設けられた水抜き棒保持孔５２を介して抜き出
すことができる。After closing the spout on the upstream side of the inflow port 14, the drain valve 48 is pushed to push up the check valve 16 so that the water in the pressure reducing valve 10 is removed from the water provided in the strainer cap 50. It can be extracted through the extraction rod holding hole 52.
【０００８】第４図はこの減圧弁１０を備えた給湯設備
の系統図であり、減圧弁１０は電気温水器５６に取り付
けられている。止水栓５８からの１次給水管６０がこの
減圧弁１０の流入ポート１４に接続されている。減圧弁
１０の流出ポート４０は、三方継手６２及びエルボ６４
を介して電気温水器５６の給水受入口６６に接続されて
いる。電気温水器５６の出湯口は逃し弁６８、給湯管７
０を介して湯水混合水栓７２の湯流入口７４に接続され
ている。FIG. 4 is a system diagram of hot water supply equipment provided with the pressure reducing valve 10. The pressure reducing valve 10 is attached to an electric water heater 56. A primary water supply pipe 60 from the water stopper 58 is connected to the inflow port 14 of the pressure reducing valve 10. The outflow port 40 of the pressure reducing valve 10 includes a three-way joint 62 and an elbow 64.
It is connected to the water supply inlet 66 of the electric water heater 56 via. The outlet of the electric water heater 56 has a relief valve 68 and a hot water supply pipe 7.
It is connected to the hot water inlet 74 of the hot and cold water mixing faucet 72 via 0.
【０００９】前記三方継手６２は、２次給水管７６を介
して湯水混合水栓７２の水流入口７８に接続されてい
る。The three-way joint 62 is connected to a water inlet 78 of a hot and cold water mixing faucet 72 via a secondary water supply pipe 76.
【００１０】湯水混合水栓７２の湯ハンドル８０及び水
ハンドル８２を回すことにより、吐水口８４から混合水
が吐出され、水ハンドル８２だけを回すことにより吐水
口８４から水が吐出される。By turning the hot water handle 80 and the water handle 82 of the hot and cold water mixing faucet 72, the mixed water is discharged from the spout 84, and by turning only the water handle 82, the water is spouted from the spout 84.
【００１１】[0011]
【発明が解決しようとする課題】上記従来の減圧弁１０
を用いた給湯設備にあっては、次の問題点があった。The conventional pressure reducing valve 10 described above.
There were the following problems in the hot water supply equipment using.
【００１２】 三方継手６２を用いているので、部品
点数が多い。Since the three-way joint 62 is used, the number of parts is large.
【００１３】 電気温水器５６内の貯湯圧が高い場
合、水ハンドル８２を回したときに電気温水器５６内の
湯が２次給水管７６へ逆流し、吐水口８４から湯が流出
するおそれがある。When the hot water storage pressure in the electric water heater 56 is high, the hot water in the electric water heater 56 may flow back to the secondary water supply pipe 76 when the water handle 82 is turned, and the hot water may flow out from the spout 84. is there.
【００１４】すなわち、通常の場合、減圧弁１０の設定
圧力は０．８０ｋｇｆ／ｃｍ2 程度であり、逃し弁６８
の設定圧力は吹出し０．９５ｋｇｆ／ｃｍ2 程度、吹止
まり０．８８ｋｇｆ／ｃｍ2 程度である。このような減
圧弁１０及び逃し弁６８の設定圧力の関係より、電気温
水器貯湯水の圧力は０．８０〜０．９５の範囲内にあ
る。つまり、減圧弁設定圧力よりもわずかながら高い。
そこで、２ハンドルの湯水混合水栓７２の水ハンドル８
２のみを開けたとき、止水栓５８→減圧弁１０→湯水混
合水栓７２と流れるべき水が、水ハンドル８２を開けた
直後だけ、電気温水器５６→２次給水管７６→湯水混合
水栓７２と流れてしまう。そのため、一瞬ではあるが、
吐水口８４から吐水温が高くなる現象が生じる。That is, in the normal case, the set pressure of the pressure reducing valve 10 is about 0.80 kgf / cm 2 , and the relief valve 68
The set pressure blowing 0.95kgf / cm 2 about a吹止Mari 0.88kgf / cm 2 approximately. Due to the relationship between the set pressures of the pressure reducing valve 10 and the relief valve 68, the pressure of the hot water stored in the electric water heater is in the range of 0.80 to 0.95. That is, it is slightly higher than the pressure reducing valve setting pressure.
Therefore, the water handle 8 of the two-handle hot and cold water mixing faucet 72
When only 2 is opened, the water that should flow from the stop cock 58 → the pressure reducing valve 10 → the hot and cold water mixing faucet 72, just after opening the water handle 82, the electric water heater 56 → the secondary water supply pipe 76 → hot and cold water mixed water. It flows with the stopper 72. Therefore, for a moment,
The phenomenon that the water discharge temperature rises from the water discharge port 84 occurs.
【００１５】[0015]
【課題を解決するための手段】本発明の減圧弁は、液体
の流入ポート及び流出ポートを有すると共に、内部に減
圧作動部を有した減圧弁において、該減圧作動部よりも
下流側に複数の前記流出ポートを設けたことを特徴とす
るものである。A pressure reducing valve according to the present invention is a pressure reducing valve having a liquid inlet port and a liquid outlet port and a pressure reducing operating portion inside, and a plurality of pressure reducing valves are provided downstream of the pressure reducing operating portion. The outflow port is provided.
【００１６】本発明の給湯設備は、この減圧弁の流出ポ
ートの１つに上記従来の２次給水管を接続したものであ
り、給水受入口及び出湯口を有した給湯器と、該給水受
入口に接続された減圧弁と、給水管及び給湯管が接続さ
れた湯水混合器とを備え、該給湯管が該出湯口に接続さ
れている給湯設備において、該減圧弁は請求項１のもの
であり、該給水管は該減圧弁の流出ポートのうちの１つ
に接続されていることを特徴とするものである。In the hot water supply equipment of the present invention, the conventional secondary water supply pipe is connected to one of the outflow ports of this pressure reducing valve, and a water heater having a water supply inlet and a hot water outlet, and the water supply receiver. In a hot water supply facility comprising a pressure reducing valve connected to the inlet, a hot water supply pipe and a hot water mixer connected to the hot water supply pipe, and the hot water supply pipe is connected to the hot water outlet, the pressure reducing valve according to claim 1. And the water supply pipe is connected to one of the outflow ports of the pressure reducing valve.
【００１７】[0017]
【作用】減圧弁に直に２次給水管をつなぐことにより、
従来必要であった三方継手６２が不要となる。[Function] By directly connecting the secondary water supply pipe to the pressure reducing valve,
The three-way joint 62, which was necessary in the past, is no longer necessary.
【００１８】また、電気温水器等の給湯器からの逆流湯
が減圧弁を通過することにより冷却される。Backflow hot water from a water heater such as an electric water heater is cooled by passing through a pressure reducing valve.
【００１９】[0019]
【実施例】第１図は実施例に係る減圧弁１０Ａの断面図
であり、開口４２にニップル９０が螺じ込まれ、このニ
ップル９０を介しても減圧された水を取り出すことが可
能とされている。その他の構成は第３図と同一であり、
同一符号は同一部分を示している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a sectional view of a pressure reducing valve 10A according to an embodiment, in which a nipple 90 is screwed into an opening 42, and depressurized water can be taken out through the nipple 90 as well. ing. Other configurations are the same as those in FIG. 3,
The same reference numerals indicate the same parts.
【００２０】第２図はこの減圧弁１０Ａを用いた実施例
に係る給湯設備の系統図であり、２次給水管７６が該ニ
ップル９０に接続され、三方継手６２が省略されてい
る。その他の構成は第４図と同一であり、同一符号は同
一部分を示している。FIG. 2 is a system diagram of hot water supply equipment according to the embodiment using the pressure reducing valve 10A, in which the secondary water supply pipe 76 is connected to the nipple 90 and the three-way joint 62 is omitted. Other configurations are the same as those in FIG. 4, and the same reference numerals indicate the same parts.
【００２１】この減圧弁１０Ａを用いた給湯設備にあっ
ては、三方継手６２を省略した分だけ部品コストが低廉
であると共に、電気温水器５６からの逆流湯が減圧弁１
０Ａを通ることにより冷却される。即ち、第２図と第４
図との対比から明らかな通り、従来では電気温水器５６
からの逆流湯がエルボ継手６４、三方継手６２を介して
直ちに２次給水管７６に流入しているが、本実施例で
は、逆流湯はエルボ継手６４を介して減圧弁１０Ａに流
入し、それから２次給水管７６に流れ込むため、従来よ
りも逆流湯が長い経路を経て２次給水管７６に達する。
このため、実際に２次給水管７６にまで達する逆流湯の
量が減少する。また、この減圧弁１０Ａの熱容量が大き
く、しかも減圧弁１０Ａの内部が入り組んだ形状となっ
ているため、減圧弁１０Ａに流れ込んだ逆流湯が該減圧
弁１０Ａのバルブボディー１２に奪熱され、冷却され
る。また、１次給水管側からの冷水と逆流湯とが減圧弁
１０Ａ内で十分に混ぜ合わされ、これによっても２次給
水管７６へ流出する逆流湯温度が低下する。In the hot water supply equipment using the pressure reducing valve 10A, the parts cost is low because the three-way joint 62 is omitted, and the backflow hot water from the electric water heater 56 reduces the pressure reducing valve 1.
It is cooled by passing 0A. That is, FIG. 2 and FIG.
As is clear from the comparison with the figure, the conventional electric water heater 56
Although the backflow hot water from the above immediately flows into the secondary water supply pipe 76 via the elbow joint 64 and the three-way joint 62, in the present embodiment, the backflow hot water flows into the pressure reducing valve 10A via the elbow joint 64, and then Since it flows into the secondary water supply pipe 76, the backflow hot water reaches the secondary water supply pipe 76 via a longer path than in the conventional case.
Therefore, the amount of backflowing hot water that actually reaches the secondary water supply pipe 76 is reduced. Further, since the heat capacity of the pressure reducing valve 10A is large and the inside of the pressure reducing valve 10A is intricately shaped, the backflow water flowing into the pressure reducing valve 10A is deprived of heat by the valve body 12 of the pressure reducing valve 10A and cooled. To be done. In addition, the cold water from the primary water supply pipe side and the backflow hot water are sufficiently mixed in the pressure reducing valve 10A, which also lowers the temperature of the backflow hot water flowing out to the secondary water supply pipe 76.
【００２２】上記実施例の給湯設備では電気温水器５６
が用いられているが、ガスや石油給湯機の場合であって
も本発明の給湯設備を適用できる。In the hot water supply equipment of the above embodiment, the electric water heater 56
However, the hot water supply equipment of the present invention can be applied to a gas or oil water heater.
【００２３】また、上記実施例では手動式の湯水混合水
栓が用いられているが、電動式の湯水混合水栓であって
も良い。Further, in the above embodiment, a manual hot and cold water mixing faucet is used, but an electric hot and cold water mixing faucet may be used.
【００２４】[0024]
【発明の効果】以上の通り、本発明の減圧弁及び給湯設
備によると、２次給水管を接続するための三方継手が不
要になり、部品コストを低減できる。また、水だけを吐
出させるように水栓を操作したときに給湯器からの逆流
湯によって温度の高い湯が吐出されることが防止され
る。As described above, according to the pressure reducing valve and the hot water supply equipment of the present invention, the three-way joint for connecting the secondary water supply pipe is not required, and the cost of parts can be reduced. Further, when the faucet is operated so as to discharge only water, it is possible to prevent the hot water from being discharged due to the backflow hot water from the water heater.
【図１】実施例に係る減圧弁の断面図である。FIG. 1 is a cross-sectional view of a pressure reducing valve according to an embodiment.
【図２】従来例に係る減圧弁の断面図である。FIG. 2 is a cross-sectional view of a pressure reducing valve according to a conventional example.
【図３】実施例に係る給湯設備の系統図である。FIG. 3 is a system diagram of hot water supply equipment according to an embodiment.
【図４】従来例に係る給湯設備の系統図である。FIG. 4 is a system diagram of a hot water supply facility according to a conventional example.
１０，１０Ａ 減圧弁 １２ バルブボディー １４ 流入ポート １６ 逆止弁 ２２ 減圧弁体 ３４ ダイヤフラム ４０ 流出ポート ５６ 電気温水器 ６０ １次給水管 ７２ 湯水混合水栓 ７６ ２次給水管 ９０ ニップル 10,10A Pressure reducing valve 12 Valve body 14 Inflow port 16 Check valve 22 Pressure reducing valve body 34 Diaphragm 40 Outflow port 56 Electric water heater 60 Primary water supply pipe 72 Hot water mixing faucet 76 Secondary water supply pipe 90 Nipple
Claims (2)
ると共に、内部に減圧作動部を有した減圧弁において、
該減圧作動部よりも下流側に複数の前記流出ポートを設
けたことを特徴とする減圧弁。1. A pressure reducing valve having a liquid inflow port and an outflow port and having a pressure reducing operation portion therein,
A pressure reducing valve, wherein a plurality of the outflow ports are provided on the downstream side of the pressure reducing operation portion.
と、該給水受入口に接続された減圧弁と、給水管及び給
湯管が接続された湯水混合器とを備え、該給湯管が該出
湯口に接続されている給湯設備において、 該減圧弁は請求項１のものであり、 該給水管は該減圧弁の流出ポートのうちの１つに接続さ
れていることを特徴とする給湯設備。2. A water heater having a water supply inlet and a hot water outlet, a pressure reducing valve connected to the water inlet, a water supply pipe and a hot water mixer connected to the hot water supply pipe. Hot water supply equipment connected to the hot water outlet, wherein the pressure reducing valve is according to claim 1, and the water supply pipe is connected to one of the outflow ports of the pressure reducing valve. Facility.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9503595A JP3473164B2 (en) | 1995-04-20 | 1995-04-20 | Hot water supply equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9503595A JP3473164B2 (en) | 1995-04-20 | 1995-04-20 | Hot water supply equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08292815A true JPH08292815A (en) | 1996-11-05 |
| JP3473164B2 JP3473164B2 (en) | 2003-12-02 |
Family
ID=14126835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9503595A Expired - Lifetime JP3473164B2 (en) | 1995-04-20 | 1995-04-20 | Hot water supply equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3473164B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09103156A (en) * | 1996-11-05 | 1997-04-22 | Yanmar Agricult Equip Co Ltd | Seedling transplanter for rice transplanter |
| JP2006190100A (en) * | 2005-01-06 | 2006-07-20 | Danrei:Kk | Pressure reducing valve |
| JP2010286181A (en) * | 2009-06-12 | 2010-12-24 | Panasonic Corp | Hot water storage type water heater |
-
1995
- 1995-04-20 JP JP9503595A patent/JP3473164B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09103156A (en) * | 1996-11-05 | 1997-04-22 | Yanmar Agricult Equip Co Ltd | Seedling transplanter for rice transplanter |
| JP2006190100A (en) * | 2005-01-06 | 2006-07-20 | Danrei:Kk | Pressure reducing valve |
| JP2010286181A (en) * | 2009-06-12 | 2010-12-24 | Panasonic Corp | Hot water storage type water heater |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3473164B2 (en) | 2003-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2007072054A3 (en) | Thermostatic valve and mixer tap with integrated tmv | |
| US5988514A (en) | Apparatus for controlling fluid temperature | |
| GB2364761B (en) | Thermostatic mixing valve | |
| JP2004527703A (en) | Backflow prevention device | |
| US5279324A (en) | Anti-siphoning valve assembly and plumbing fixture including same | |
| US5546983A (en) | Shut-off valve | |
| JPH08292815A (en) | Pressure reducing valve and hot water supply facility | |
| AU2010241371B2 (en) | Temperature Sensitive Relief Valve | |
| JP2584046Y2 (en) | Hot water mixing faucet with water purifier installed in the sink tank | |
| KR101223160B1 (en) | device for flowing backward prevention of waterworks | |
| JPH07171559A (en) | Combined system of mixing water plug and water purifier | |
| AU2008100289A4 (en) | Water heating system | |
| JPS637742Y2 (en) | ||
| KR200270137Y1 (en) | Structure of water softener | |
| RU2008570C1 (en) | Electric water heater | |
| JP3968336B2 (en) | Backflow prevention device and canned multi-channel water heater | |
| JP3057539U (en) | Branching device for single-lever hot-water mixer tap | |
| JP3962159B2 (en) | Wall mounting mechanism for hot and cold mixer taps | |
| JPH10103536A (en) | Hot and cold water combination supplyer | |
| JPH0431340Y2 (en) | ||
| JP2004245492A (en) | Water heater apparatus and water faucet device | |
| JPS6144044Y2 (en) | ||
| JPS637743Y2 (en) | ||
| JP3308168B2 (en) | Mounting mechanism for hot and cold mixer taps | |
| GB2294745A (en) | Shut-off valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20070919 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080919 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090919 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090919 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100919 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110919 Year of fee payment: 8 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110919 Year of fee payment: 8 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120919 Year of fee payment: 9 |