CN1862922A - Pressure reducing type water supplying float valve of cold water tank in generator - Google Patents
Pressure reducing type water supplying float valve of cold water tank in generator Download PDFInfo
- Publication number
- CN1862922A CN1862922A CN 200510068292 CN200510068292A CN1862922A CN 1862922 A CN1862922 A CN 1862922A CN 200510068292 CN200510068292 CN 200510068292 CN 200510068292 A CN200510068292 A CN 200510068292A CN 1862922 A CN1862922 A CN 1862922A
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- steel ball
- water tank
- pressure
- valve
- valve body
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Abstract
The cool water tank filling water ball cock in the generator with the decompressing function is disclosed. The valve can push the steel ball by the floating ball driving the lever joining pole, so the supply water of the water tank can be controlled, the supplied water enters the water tank thought the decompressing room decompressing, because the supplied water flow can't form the big fluctuate to the liquid face of the water tank, the controlling of the supplying water is accurate, at the same time, the steel ball is adopt as the door body, the airproof effect is good, the phenomena of elevation ceaselessly because of the bad airproof can be avoided. The main component of the said valve is composed of the valve body, the floating ball, the connecting pole, the pushing poll and the steel ball, the frame is brief, the failure occurs rarely.
Description
Technical field
The present invention relates to a kind of power generator inner cold water case automatic water-replenishing device, especially a kind of pressure reducing type water supplying float valve of cold water tank in generator.
Background technology
The inner cold water case water replanishing device of power plant's Generator Set has two kinds of forms at present: a kind of is the electromagnetically operated valve moisturizing, another kind is to drive guiding valve control moisturizing through ball float, two kinds of moisturizing forms are very unreliable, its reason is that fault easily takes place electromagnetically operated valve, and the easy bite of guiding valve, two kinds of water replanishing devices because water impact causes water level fluctuation too big, often have out-of-control phenomenon to take place because of not possessing decompression when being used for the high pressure moisturizing simultaneously.
Summary of the invention
The objective of the invention is: the safe and reliable water replanishing device that the problem design that exists at the inner cold water case is a kind of to have decompression, no bite, be difficult for breaking down.
The present invention is achieved in the following manner: pressure reducing type water supplying float valve of cold water tank in generator is mainly formed (shown in accompanying drawing 1,2) by main members such as valve body 2, plug 3, pressure-reducing chamber 4, push rod 5, lever connecting rod 8, ball float 9, spring 10, fairlead 11, steel balls 13.The inlet opening 1 of valve body 2 communicates with the elongated hole 12 of fairlead 11, be provided with spring 10 in the fairlead, spring 10 is pressed on the steel ball 13, steel ball 13 is pressed on the gate seat hole 14 of valve body as control gate, steel ball 13 can only move up and down under the effect of fairlead, the lower end of valve body is provided with pressure-reducing chamber 4, be provided with relief chamber 15 in the pressure-reducing chamber 4,16, the bottom of relief chamber 16 is provided with several apopores 17, the centre in pressure-reducing chamber is provided with vertical pusher pilot hole 18, and be furnished with push rod 5, and the right side, lower surface in pressure-reducing chamber is provided with support 6, and connecting rod 8 is that fulcrum forms lever with the axle 7 on the support 6, the left part of connecting rod 8 is against the bottom of push rod 5, and right-hand member is connected with ball float 9.
Operation principle of the present invention is: fluctuate with level change at inner cold water case inner float ball, when liquid level reduces, ball float drivening rod 8 moves downward, and connecting rod is positioned at axle 7 left part and moves upward, through push rod 5 jack-up steel balls 13, make steel ball 13 leave gate seat hole 14, the water under high pressure of being introduced by the inlet opening this moment is through the strip hole 12 of fairlead, steel ball 13 gap with gate seat hole 14, be ejected into relief chamber 15 along the cone inclined-plane of push rod 5 and reduce pressure, enter relief chamber 16 then and carry out moisturizing by apopore 17 inflow water tanks through decompression back once more.Ball float drivening rod right-hand member moves upward when water level raises, and connecting rod is positioned at axle 7 left part and moves downward, push rod 5 falls thereupon, steel ball reduces the gap with gate seat hole 14 gradually under the effect of spring and deadweight, push rod 5 leaves steel ball when water level is higher than design height, and steel ball is pressed on the gate seat hole 14, and hydraulic pressure forms pressure on the top of steel ball simultaneously, steel ball is pressed on the aperture of door seat 14, any leakage can take place.
The invention has the beneficial effects as follows, adopt steel ball to make the control gate good sealing effect, it is bigger that gap between steel ball and the fairlead can be done, so the bite phenomenon can not take place, post-decompression moisturizing can not cause big fluctuation to water tank level through the pressure-reducing chamber, the water level precise control can be stabilized on the design height through the operation test water level and not change, and can not break down through long-time running.
Description of drawings
Fig. 1 is a decompression type electric generator inner cooling water tank water compensating valve outline drawing
Fig. 2 is a decompression type electric generator inner cooling water tank water compensating valve cutaway view
Sequence number among the figure: 1 inlet opening, 2 valve bodies, 3 plugs, 4 pressure-reducing chambers, 5 push rods, 6 supports, 7,8 lever connecting rods, 9 ball floats, 10 springs, 11 fairleads, 12 elongated holes, 13 steel balls, 14 gate seat holes, 15 relief chambers, 16 relief chambers, 17 apopores, 18 push rod pilot holes
Embodiment
Shown in Fig. 1-2, a kind of decompression type electric generator inner cooling water tank water compensating valve, it is characterized in that: connecting rod 8 is that fulcrum forms lever with the axle 7 that is installed on the support 6, one end of connecting rod links to each other with ball float, the other end then is against the lower end of push rod 5, when ball float falls with liquid level, the other end of connecting rod moves upward push rod 5, back down steel ball 13, when ball float moves upward with liquid level, 5 of push rods move downward, and steel ball is pressed to gate seat hole 14 under the deadweight and the effect of spring 10, control the unlatching of moisturizing door or close with this, because steel ball 13 is installed in the fairlead 11, so steel ball can only move both vertically up and down, can not depart from gate seat hole 14, the fairlead symmetry has elongated hole 12 and communicates with fuel feed hole 1.The bottom of valve body 2 is provided with pressure-reducing chamber 4, and the pressure-reducing chamber is provided with ring decompression chamber 15, relief chamber 16, and the bottom of relief chamber 16 has several apopores 17, and the middle part in pressure-reducing chamber is the pilot hole 18 of push rod 5, and control push rod 5 can only move both vertically up and down.
Claims (3)
1, a kind of water supplying float valve of cold water tank in generator with decompression, comprise valve body, steel ball, pressure-reducing chamber, push rod, connecting rod, ball float, it is characterized in that: fairlead (11), steel ball (13), spring (10) are installed in valve body (2) successively, drive the control system of lever connecting rod (8) by ball float (9), and the decompressor before the pressure-reducing chamber enters water tank as moisturizing is set in the bottom of valve body by the position formation water compensating valve of push rod (5) control steel ball.
2, water supplying float valve of cold water tank in generator with decompression according to claim 1, it is characterized in that: valve body (2) is provided with inlet opening (1), aperture of door seat (14), inlet opening (1) communicates with the elongated hole (12) of fairlead (11), steel ball is installed in the fairlead successively, spring, wherein steel ball is pressed on the aperture of door seat (14) as the door body, spring is pushed down steel ball, plug (3) is pushed down fairlead (11), also doing simultaneously spring base uses, one side is provided with support (6) in order to support link (8) in the bottom, pressure-reducing chamber, connecting rod (8) is that fulcrum forms lever with axle (7), left end connects ball float (9), place cylindrical push rod (5) between right-hand member cambered surface end points and the steel ball, push rod (5) can slide up and down in push rod pilot hole (18).
3, the water supplying float valve of cold water tank in generator with decompression according to claim 1, it is characterized in that: the bottom of valve body (2) is provided with pressure-reducing chamber (4), be provided with ring decompression chamber (15), relief chamber (16) in the pressure-reducing chamber, and communicate with the gate seat hole (14) of valve body, the position with the same axis in gate seat hole of valve body (2) in the middle of the pressure-reducing chamber is provided with the direction of motion of vertical pusher pilot hole (18) in order to restriction push rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510068292 CN1862922A (en) | 2005-05-09 | 2005-05-09 | Pressure reducing type water supplying float valve of cold water tank in generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510068292 CN1862922A (en) | 2005-05-09 | 2005-05-09 | Pressure reducing type water supplying float valve of cold water tank in generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1862922A true CN1862922A (en) | 2006-11-15 |
Family
ID=37390272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510068292 Pending CN1862922A (en) | 2005-05-09 | 2005-05-09 | Pressure reducing type water supplying float valve of cold water tank in generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1862922A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017185536A1 (en) * | 2016-04-27 | 2017-11-02 | 新界泵业集团股份有限公司 | Float switch structure |
-
2005
- 2005-05-09 CN CN 200510068292 patent/CN1862922A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017185536A1 (en) * | 2016-04-27 | 2017-11-02 | 新界泵业集团股份有限公司 | Float switch structure |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |