JPS6425574U - - Google Patents
Info
- Publication number
- JPS6425574U JPS6425574U JP12042887U JP12042887U JPS6425574U JP S6425574 U JPS6425574 U JP S6425574U JP 12042887 U JP12042887 U JP 12042887U JP 12042887 U JP12042887 U JP 12042887U JP S6425574 U JPS6425574 U JP S6425574U
- Authority
- JP
- Japan
- Prior art keywords
- pressure chamber
- throttle valve
- cooling water
- inclination angle
- valve
- 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
Links
- 239000000498 cooling water Substances 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims 1
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Lift Valve (AREA)
Description
第１図は本考案の流量調整弁が適用された循環
ポンプ冷却系を示す系統図、第２図は本考案に係
る流量調整弁の一実施例を示す断面図、第３図は
自動絞り弁の要部断面図、第４図は手動絞り弁の
要部断面図、第５図は入口、出口間の差圧に対す
る流量変化を示すグラフである。
１３……ボイラ、１５……循環ポンプ、１７…
…循環ポンプ冷却系、１９……冷却水タンク、２
１……冷却水供給ポンプ、２３……流量調整弁、
２５……高圧側ケース、２７……低圧側ケース、
２９……ボルト、３１……ナツト、３３……冷却
水導入口、３５……冷却水流出口、３７……主圧
力室、３９……中間圧力室、４１……自動絞り弁
収納室、４３……手動絞り弁収納室、４５Ａ，４
５Ｂ，４５Ｃ，４５Ｄ……流路、４７……弁座、
４９……下部ガイド、５１……スリーブ、５３…
…スリツト板、５５……貫通孔、５７……自動絞
り弁、５９……上部ガイド、６１……圧縮スプリ
ング、６２，８２……弁頭、６３……開口、６４
，８６……開口部、６５……ピストン、６６……
ガイドシール、６７……ピストンロツド、６９…
…上部ガイド、７１……割りピン、７３……下部
ガイド、７５……圧縮スプリング、７７……案内
スリーブ、７９……ガイド部、８０……手動絞り
弁、８１……支持部材、８３……周溝、８５……
ノズル部、８７……手動ノブ、８８……ナツト、
９５……閉塞弁、９７……開閉弁。
Fig. 1 is a system diagram showing a circulation pump cooling system to which the flow regulating valve of the present invention is applied, Fig. 2 is a sectional view showing an embodiment of the flow regulating valve of the present invention, and Fig. 3 is an automatic throttle valve. FIG. 4 is a cross-sectional view of the main part of the manual throttle valve, and FIG. 5 is a graph showing the change in flow rate with respect to the differential pressure between the inlet and the outlet. 13...Boiler, 15...Circulation pump, 17...
...Circulation pump cooling system, 19...Cooling water tank, 2
1... Cooling water supply pump, 23... Flow rate adjustment valve,
25...High pressure side case, 27...Low pressure side case,
29... Bolt, 31... Nut, 33... Cooling water inlet, 35... Cooling water outlet, 37... Main pressure chamber, 39... Intermediate pressure chamber, 41... Automatic throttle valve storage chamber, 43... ...Manual throttle valve storage chamber, 45A, 4
5B, 45C, 45D...flow path, 47...valve seat,
49...Lower guide, 51...Sleeve, 53...
... Slit plate, 55 ... Through hole, 57 ... Automatic throttle valve, 59 ... Upper guide, 61 ... Compression spring, 62, 82 ... Valve head, 63 ... Opening, 64
, 86... opening, 65... piston, 66...
Guide seal, 67...Piston rod, 69...
... Upper guide, 71 ... Split pin, 73 ... Lower guide, 75 ... Compression spring, 77 ... Guide sleeve, 79 ... Guide portion, 80 ... Manual throttle valve, 81 ... Support member, 83 ... Circumferential groove, 85...
Nozzle part, 87...manual knob, 88...nut,
95...Closing valve, 97...Opening/closing valve.
Claims (1)
圧力室及び中間圧力室が順次設けられ、これら主
圧力室と中間圧力室間に第１絞り弁が、上記中間
圧力室から冷却水流出口へ至る流路に第２絞り弁
が夫々設置され、これらの第１及び第２絞り弁に
より流体圧力が段階的に減圧される流量調整弁に
おいて前記第１絞り弁の弁頭がその基部から第１
の傾斜角度で次第に先細りとなつており、この長
さ方向の略中間部分から先は前記第１の傾斜角度
より十分大きい第２の傾斜角度で急速に先細りと
なると共に、前記第２絞り弁が略２Kg／cm2以上
の負荷で作業可能なスプリングによつて常時開方
向に抑制されていることを特徴とする流量調整弁
。 A main pressure chamber and an intermediate pressure chamber are sequentially provided in a flow path leading from the cooling water inlet to the cooling water outlet, and a first throttle valve is provided between the main pressure chamber and the intermediate pressure chamber, and a first throttle valve is connected to the flow path from the intermediate pressure chamber to the cooling water outlet. A second throttle valve is installed in each of the flow paths leading to the flow rate regulating valve, and the fluid pressure is reduced in stages by these first and second throttle valves.
It gradually tapers off at an inclination angle of , and from approximately the middle portion in the length direction, it rapidly tapers off at a second inclination angle that is sufficiently larger than the first inclination angle, and the second throttle valve A flow rate regulating valve characterized in that it is always held in the open direction by a spring that can operate under a load of approximately 2 kg/cm 2 or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12042887U JPS6425574U (en) | 1987-08-07 | 1987-08-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12042887U JPS6425574U (en) | 1987-08-07 | 1987-08-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6425574U true JPS6425574U (en) | 1989-02-13 |
Family
ID=31366526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12042887U Pending JPS6425574U (en) | 1987-08-07 | 1987-08-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6425574U (en) |
-
1987
- 1987-08-07 JP JP12042887U patent/JPS6425574U/ja active Pending
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