CN2816527Y - Pump-station silencing water-proof hammer controlling valve - Google Patents
Pump-station silencing water-proof hammer controlling valve Download PDFInfo
- Publication number
- CN2816527Y CN2816527Y CN 200520051214 CN200520051214U CN2816527Y CN 2816527 Y CN2816527 Y CN 2816527Y CN 200520051214 CN200520051214 CN 200520051214 CN 200520051214 U CN200520051214 U CN 200520051214U CN 2816527 Y CN2816527 Y CN 2816527Y
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- valve
- valve plate
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- pipe fitting
- bypass pipe
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Abstract
The utility model discloses a pump-station silencing waterproof hammer control valve, which comprises a valve body, a big valve plate, an inlet bypass pipe fitting, an outlet bypass pipe fitting, a change valve, a piston cylinder part, a valve shaft, a small valve plate group, a crank arm shaft, a crank arm and a balance hammer, wherein the valve shaft is fixed on the valve body and connected with the piston cylinder part; the big valve plate and the small valve plate group are fixed on the valve shaft, and the center of the big valve plate and the center of the small valve plate group are not coincident with the center of the valve shaft, and the inlet bypass pipe fitting and the outlet bypass pipe fitting are respectively arranged on both sides of the big valve plate of the valve body and connected with the piston cylinder part via the change valve; the balance hammer is fixed on one side of the piston cylinder part, a damping device is arranged on the valve body, and a sliding seat of the damping device is fixedly arranged on the valve body; a sliding sleeve is arranged in the sliding seat, a sliding core is sheathed in the sliding sleeve, a regulating screw rod is arranged in the sliding core and a water inlet and a water outlet are connected with a water inlet bypass pipe fitting. The utility model not only has the basic functions of pump station control valves, but also has the functions of silencing and shock absorption.
Description
Technical field
The utility model is mainly concerned with pumping plant control valve field, refers in particular to the anti-water hammer control valve of a kind of pumping plant noise elimination.
Background technique
Prior art, in the pipe-line system of centrifugal pump conveyance fluid, when pump startup, in order to guarantee priming of pump electric current minimum, protection motor nonoverload is adorned a mortor operated valve (gate valve or butterfly valve) at the delivery side of pump end, just open behind pump startup.When pump stopped, delivery side of pump required and can be closed rapidly, cut off liquid and flow backwards, and prevented that liquid from flowing backwards so adorn a safety check at delivery side of pump.But during owing to cut-out liquid stream, because the inertia of fluid can produce water hammer, high water hammer can cause the damage of pipeline breaking and valve, and the generation accident is so at the delivery side of pump place, also need to install a water-hammer arrester.Like this, at the delivery side of pump place at least three devices to be installed.Many in order to solve this class pump discharge section equipment, energy consumption is many, the fault point is many, maintenance workload is big, multiclass multifunctional water force control valve or multifunctional water pump control valve or composite-type dual-supporting dual-speed multifunctional valve and other valve-like door have appearred at present, as two plate double speed valve types such as hydraulic automatic valve, butterfly multifunctional hydraulic internally piloted valve.
In these conventional valves that use, two plate double speed valve types such as multifunctional water force control valve or multifunctional water pump control valve or composite-type dual-supporting dual-speed multifunctional valve and other valve-like door such as hydraulic automatic valve, butterfly multifunctional hydraulic internally piloted valve etc., though all can be applicable to water pump water transport pipeline system as the exit of pump control valve, all have slow open, Slow Close, the function of damming non-return and subduing water hammer.But their non-return that dams all merely utilizes big valve plate quick closedown to realize.When big valve plate quick closedown, valve plate and valve seat strong collision cause strong vibrations, produce huge noise, have influenced the intensity of valve seat and the life-span of sealing, thereby influence the working life of valve and whole system, and produce noise pollution.
The model utility content
The technical problems to be solved in the utility model just is: at the technical problem of prior art existence, the utility model proposes and a kind ofly slow open, Slow Close, the non-return that dams, subdue the fundamental function of water hammer except having, the anti-water hammer control valve of pumping plant noise elimination that also has noise elimination, shock-absorbing function, can be widely used in electric power, metallurgy, petrochemical industry, the system of appointing national minority hereditary headmen in the Yuan, Ming and Qing Dynasties, city have stable political situation supply and drain water system, especially the pump discharge place of the pipe network system that vibrations and noise are huge in environmental protection, mine.
In order to solve the problems of the technologies described above, the solution that the utility model proposes is: a kind of pumping plant is eliminated the noise and is prevented the water hammer control valve, it comprises valve body, big valve plate, import bypass pipe fitting, outlet bypass pipe fitting, selector valve, the piston cylinder parts, valve shaft, little valve plate group, the connecting lever axle, connecting lever, counterweight, valve shaft is fixed on the valve body and with the piston cylinder parts and links to each other, big valve plate and little valve plate group are fixed on the valve shaft, and the center of big valve plate and little valve plate group does not overlap with the valve shaft center, big valve one end is the valve entrance point, the other end is the valve outlet port end, import bypass pipe fitting and outlet bypass pipe fitting are located at the big valve plate both sides on the valve body respectively, and link to each other with the piston cylinder parts by selector valve, counterweight is fixed in a side of piston cylinder parts, it is characterized in that: described valve body is provided with a damping device, this damping device comprises slide core, sliding sleeve, regulate screw mandrel, slide, intake-outlet, wherein slide is fixedly arranged on the valve body, sliding sleeve is positioned at slide, slide core is sheathed in the sliding sleeve, regulate screw mandrel and be located in the slide core, intake-outlet links to each other with water inlet bypass pipe fitting.
Offer discharge orifice on the described big valve plate, its excircle is embedded with a valve plate seal ring.
Described drive cylinder parts are connected with connecting lever by the connecting lever axle, and connecting lever connects with valve shaft by key.
Compared with prior art, advantage of the present utility model is: the utility model is controlled in the outlet port of water pump, and slow open valve and make the pump motor inrush current less, protection pump motor nonoverload, thus realize that underloading opens pump; Simultaneously water pump is in system's dead electricity or termination of pumping or when other improper worker's situation occurring, and big valve plate blocks most of current fast, prevents pouring in down a chimney of water body, and the function of the non-return that dams is achieved; In addition, the Slow Close of little valve plate group has released the water hammer surge pressure, has protected pipeline and valve.The realization of above function illustrates its many composite sets that can replace the pump discharge section fully (by gate valve or butterfly valve, safety check and water-hammer arrester constitute) or various pair of present plate double speed valve.Also be provided with a damping device on the utility model, this damping device has produced a buffering to the quick closedown of big valve plate, has avoided the strong bump of the valve seat on big valve plate and the valve body, has played the purpose of sound deadening shock absorption.So just prolong the working life of valve and whole water pump pipe network system and reduced noise pollution, and then improved the safety reliability of system.
Description of drawings
Fig. 1 is the overall structure schematic representation of facing of the present utility model;
Fig. 2 is a side-looking overall structure schematic representation of the present utility model;
Fig. 3 is a damping device enlarged diagram of the present utility model;
Structural representation when Fig. 4 is the utility model buttoned-up status;
Structural representation when Fig. 5 is the utility model complete opening state;
Structural representation when Fig. 6 is the big valve plate quick closedown of the utility model state;
Fig. 7 is a little valve plate group of the present utility model structural representation during closed condition at a slow speed.
Embodiment
Below with reference to accompanying drawing the utility model is described in further details.
As Fig. 1, Fig. 2 and shown in Figure 3, the utility model comprises valve body 1, big valve plate 3, import bypass pipe fitting 4, outlet bypass pipe fitting 5, selector valve 6, piston cylinder parts 7, valve shaft 15, little valve plate group 16, connecting lever axle 23, connecting lever 24 and counterweight 35.Wherein, valve shaft 15 is fixed on the valve body 1 and with piston cylinder parts 7 and links to each other, and valve shaft 15 rotates in the axle sleeve 19,12 at big or small two flexibly; Big valve plate 3 is placed on the valve shaft 15, and rotate flexibly for being bearing in the axle sleeve with the valve plate axle sleeve at big or small two, the supporting sleeve 18,13 at size two is fixedlyed connected with end cap 8 and valve body 1 by screw 43, microcephaly's axle sleeve 12 is located by end cap 8 by positioning ring 10, and also offer discharge orifice 57 on big valve plate 3, its excircle is embedded with a valve plate seal ring.Little valve plate group 16 is fixed on the valve shaft 15.Big valve 3 one ends are valve entrance point 60, and the other end is a valve outlet port end 61.Little valve plate group 16 connects with valve shaft 15 by key.Big valve plate 3 both sides that import bypass pipe fitting 4 and outlet bypass pipe fitting 5 are located at respectively on the valve body 1, and link to each other with piston cylinder parts 7 by selector valve 6; Counterweight 35 is fixed in a side of piston cylinder parts 7, and counterweight 35 is fixedly connected by screw and valve shaft 15 with pointer 31.Piston cylinder parts 7 are connected with connecting lever 24 by connecting lever axle 23, and connecting lever 24 connects with valve shaft 15 by key.Piston cylinder parts 7 drive connecting lever 24 by connecting lever axle 24 and drive valve shaft 15 rotations.
In the present embodiment, damping device is arranged at the top of valve body 1, this damping device comprises slide core 44, sliding sleeve 45, regulates screw mandrel 46, slide 47 and intake-outlet 48, wherein slide 47 is fixedly arranged on the valve body 1, sliding sleeve 45 is positioned at slide 47, slide core 44 is sheathed in the sliding sleeve 45, regulates screw mandrel 46 and is located in the slide core 44, and intake-outlet 48 links to each other with water inlet bypass pipe fitting 4.Connecting sleeve 47 usefulness scyewed joint and sliding sleeve 45 in the slip of slide core 44 in sliding sleeve 45.Adjusting screw mandrel 46 usefulness screw threads connect with connecting head and fix with nut, regulate the extrusion of screw mandrel 46 can regulate slide cores 44, and each port all seals with 0 seal ring, thereby prevent the phenomenon of internal and outernal leakage.
Working principle: referring to as Fig. 4, Fig. 5, Fig. 6 and working state schematic representation shown in Figure 7, the utility model device is installed on the delivery side of pump end, and pump stops state, and valve outlet port end 62 pressure are higher than the pressure of valve entrance point 61, form a pressure difference.This pressure difference acts on gravitational moment that big valve plate 3 forms a hydrostatic moment and big valve plate 3 self together, little sealing surface of valve plate on big valve plate seal ring 2 and valve body sealing surface and the little valve plate group 16 on the big valve plate 3 is closely contacted with primary sealing surface on the big valve plate, valve entrance point 61 is isolated fully with valve outlet port end 62, fluid can not pass through, and this moment, valve was closed fully.
After opening pump, valve entrance point 61 press waters are by import bypass pipe fitting 4, enter respectively in the sliding sleeve 45 of selector valve 6 and piston cylinder parts 7 and damping device parts, press water makes selector valve 6 commutations, under valve entrance point 61 press waters drove, piston cylinder parts 7 drove connecting lever axle 23, and then drove valve shaft 15 rotations, the little valve plate group 16 of the rotating band dynamic pressure of valve shaft 15 on big valve plate 3 slowly moved, thereby slowly opens little valve plate group 16.Simultaneously, valve entrance point 61 pressure are higher than valve outlet port end 62 pressure, form a pressure difference.This pressure difference forms a valve opening force square on big valve plate 3, the valve opening force square overcomes the gravitational moment and the relevant resisting moment of big valve plate 3, promotes big valve plate 3 and follows little valve plate group 16 and slowly open, until reaching maximum opening, valve entrance point 61 is connected with valve outlet port end 62, and fluid is by valve body 1.Simultaneously, the slide core 44 in the damping device is stretched out sliding sleeve 45 under valve entrance point 61 pressure water actions.
Termination of pumping moment, valve entrance point 61 pressure and flow suddenly disappear, valve outlet port end 62 pressure are higher than valve entrance point 61 pressure, form a pressure difference and act on pass valve moment of generation on the big valve plate 3, big valve plate 3 is under the effect of closing valve moment, add the counterweight moment that gravitational moment that big valve plate 3 self gravitations produce and counterweight 35 produce, make big valve plate 3 non-return that can quick closedown dams, cut off most of current.When big valve plate 3 quick closedown to set angles, the slide core 44 of stretching out in the damping device is given an one buffering, the pressure that overcomes water in the damping device along with slide core 44 slowly is retracted in the sliding sleeve 45, and big valve plate 3 also begins slow closing to full cut-off, thereby has reached the purpose of sound deadening shock absorption.Simultaneously, the discharge orifice 57 of sub-fraction current from the big valve plate 3, releases because the water hammer pressure that fluid inertia causes realizes subduing the water hammer function to valve entrance point 61 earial drainages from valve outlet port end 62.Valve outlet port end 62 press waters enter selector valve 6, make selector valve 6 commutations, valve outlet port end 62 press waters enter piston cylinder parts 7, promoting piston cylinder parts 7 drives little valve plate group 16 and closes to slowly that discharge orifice 57 sealing surfaces closely contact on little sealing surface of valve plate and the valve plate 3 greatly, block discharge orifice 57, valve outlet port end 62 and valve entrance point 61 are isolated fully, and valve is closed fully.
Claims (3)
1, a kind of pumping plant is eliminated the noise and is prevented the water hammer control valve, it comprises valve body (1), big valve plate (3), import bypass pipe fitting (4), outlet bypass pipe fitting (5), selector valve (6), piston cylinder parts (7), valve shaft (15), little valve plate group (16), connecting lever axle (23), connecting lever (24) and counterweight (35), valve shaft (15) is fixed in valve body (1) and upward and with piston cylinder parts (7) links to each other, big valve plate (3) and little valve plate group (16) are fixed on the valve shaft (15), and the center of big valve plate (3) and little valve plate group (16) does not overlap with valve shaft (15) center, big valve (3) one ends are valve entrance point (61), the other end is valve outlet port end (62), import bypass pipe fitting (4) and outlet bypass pipe fitting (5) are located at big valve plate (3) both sides on the valve body (1) respectively, and link to each other with piston cylinder parts (7) by selector valve (6), counterweight (35) is fixed in a side of piston cylinder parts (7), it is characterized in that: described valve body (1) is provided with a damping device, this damping device comprises slide core (44), sliding sleeve (45), regulate screw mandrel (46), slide (47), intake-outlet (48), wherein slide (47) is fixedly arranged on the valve body (1), sliding sleeve (45) is positioned at slide (47), slide core (44) is sheathed in the sliding sleeve (45), regulate screw mandrel (46) and be located in the slide core (44), intake-outlet (48) links to each other with water inlet bypass pipe fitting (4).
2, pumping plant according to claim 1 is eliminated the noise and is prevented the water hammer control valve, and it is characterized in that: offer discharge orifice (57) on the described big valve plate (3), its excircle is embedded with a valve plate seal ring.
3, pumping plant according to claim 1 and 2 is eliminated the noise and prevented the water hammer control valve, it is characterized in that: described piston cylinder parts (7) are connected with connecting lever (24) by connecting lever axle (23), and connecting lever (24) connects with valve shaft (15) by key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520051214 CN2816527Y (en) | 2005-06-27 | 2005-06-27 | Pump-station silencing water-proof hammer controlling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520051214 CN2816527Y (en) | 2005-06-27 | 2005-06-27 | Pump-station silencing water-proof hammer controlling valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2816527Y true CN2816527Y (en) | 2006-09-13 |
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ID=36996337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520051214 Expired - Fee Related CN2816527Y (en) | 2005-06-27 | 2005-06-27 | Pump-station silencing water-proof hammer controlling valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2816527Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611606A (en) * | 2018-11-30 | 2019-04-12 | 中国船舶重工集团公司第七研究所 | Aeration valve for diesel engine |
-
2005
- 2005-06-27 CN CN 200520051214 patent/CN2816527Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611606A (en) * | 2018-11-30 | 2019-04-12 | 中国船舶重工集团公司第七研究所 | Aeration valve for diesel engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060913 Termination date: 20120627 |