CN201288877Y

CN201288877Y - Hydraulic controlled diaphragm type water level control valve

Info

Publication number: CN201288877Y
Application number: CNU2008201590773U
Authority: CN
Inventors: 刘涌; 易祖成; 杨晓燕
Original assignee: Hunan Xiangtianyuan Valve Manufacturing Co Ltd
Current assignee: Hunan Xiangtianyuan Valve Manufacturing Co Ltd
Priority date: 2008-11-07
Filing date: 2008-11-07
Publication date: 2009-08-12
Anticipated expiration: 2018-11-07

Abstract

The utility model discloses a fluid control diaphragm water level control valve which comprises a diaphragm (4) of a diaphragm upper cavity (13) and a diaphragm lower cavity (14), wherein the diaphragm upper cavity (13) is connected with a water inlet end (26) of a floating ball pilot valve assembly (7) arranged in a tank via a pipeline (15); the floating ball pilot valve assembly (7) arranges the water inlet end (26) and a water outlet end (25) which are communicated with each other on a pilot valve body (17); a piston (19) and a chock plug (18) are arranged in the pilot valve body (17); a rocker arm (22) connected with the piston (19) and a first floating ball (23) are hinge-jointed at the back-end of the pilot valve body (17); a tapered end (20) corresponding with a gap (27) of the piston (19) and a second floating ball (24) are arranged in the middle of the pilot valve body (17). The utility model is the fluid control diaphragm water level control valve which is only opened when the water lever is the lowest and is closed when the water lever is the highest, has simple structure, reliable operation, convenient maintenance and long service life, and has higher safety and reliability.

Description

Hydraulic control diaphragm type altitude valve

Technical field

The utility model relates to a kind of altitude valve, particularly a kind of hydraulic control diaphragm type altitude valve.

Background technique

In the prior art, general hydraulic control diaphragm type altitude valve, its structure is in the Z type valve body valve plate to be arranged, be connected with valve rod on the valve plate, be connected with the diaphragm and the upper and lower pressing plate of diaphragm that are synchronized with the movement on the valve rod again, it be on the main valve valve gap by having only a Lever type ball float pilot valve to control the variation of main valve upper cavity pressure, and realize the purpose that opens and closes to valve plate.Because it has only a Lever type ball float pilot valve to control main valve, so the fluctuation of medium makes the frequent opening and closing of main valve in the pond, usually influence the life-span of ball float pilot valve, make that rate of fault is higher, maintain and replace part inconvenience.

The model utility content

Problem to be solved in the utility model provides a kind of and opens when lowest water level, closes at highest water level, and simple in structure, reliable operation, easy to maintenance, long service life, the hydraulic control diaphragm type altitude valve with higher-security and reliability.

For solving the problems of the technologies described above, the hydraulic control diaphragm type altitude valve that the utility model provides, comprise valve body and diaphragm seat, in the die cavity of diaphragm seat and valve gap formation, be provided with the diaphragm that is divided into diaphragm epicoele and diaphragm cavity of resorption, by-pass governing pipeline one end that is provided with modulating valve and filter is connected with the entrance point of valve body, the other end is connected with the diaphragm epicoele, described diaphragm cavity of resorption is communicated with atmosphere, described diaphragm epicoele is connected with ball float guide valve component in being arranged at water reservoir by pipeline, described ball float guide valve component is feed-water end and the waterexit end that is provided with connection on the pilot valve valve body, described diaphragm epicoele is connected with described feed-water end by pipeline, in described pilot valve valve body, be provided with piston, described piston front portion is provided with the chock plug corresponding with described feed-water end, rear end at described pilot valve valve body is hinged with rocking arm, described rocking arm one end is in transmission connection with described piston is corresponding, the other end is provided with first ball float, described piston middle part is provided with breach, be provided with tapered end corresponding with the breach of described piston and spring thereof at described pilot valve valve body middle part, described tapered end lower end is connected with second ball float.

Adopt the hydraulic control diaphragm type altitude valve of technique scheme, compared with prior art, advantage of the present utility model is: this hydraulic control diaphragm type altitude valve adopts two pilot operated structural types of ball float, simple in structure, be quick on the draw, reliable in action, the regulating water level scope is wide, long service life.This hydraulic control diaphragm type altitude valve has overall structure advanced person, assembling, maintenance, debugs characteristics easily.This hydraulic control diaphragm type altitude valve adopts the design of expanded letter streamline shape, has the few characteristics of the little turbulent flow of the big flow resistance of inflow-rate of water turbine.

In sum, the utlity model has the reaction of main valve structure advanced person, ball float is active in one's movements, liquid level height adjusted position scope is wide, ball float guide valve component long service life, move safe and reliable, can guarantee the safe operation of supply system effectively, have simultaneously easy to maintenance, floor space is little, the reliability advantages of higher.

Description of drawings

Fig. 1 is the structural representation of this hydraulic control diaphragm type altitude valve;

Fig. 2 is a ball float guide valve component structural representation of the present utility model.

Embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

Referring to Fig. 1 and Fig. 2, valve body 1, diaphragm seat 2, valve gap 3 connects by bolt, in the die cavity of diaphragm seat 2 and valve gap 3 formation, be provided with diaphragm 4 and separate die cavity film forming sheet epicoele 13 and diaphragm cavity of resorptions 14, diaphragm 4 two ends are connected with diaphragm pressing plate 5, have in the middle of the diaphragm pressing plate 5 valve rod 6 by and be attached thereto, the other end at valve rod 6 is connected with valve plate 8,8 times seal ring 9 is housed at valve plate, be connected with valve plate seat 10 9 times at seal ring, valve plate seat 10 is embedded on the valve body 1, on the muscle of valve plate seat 10 circle distribution pilot hole is arranged, valve rod 6 therefrom passes, by-pass governing pipeline 16 1 ends that are provided with modulating valve 11 and filter 12 are connected with the entrance point of valve body 1, the other end is connected with diaphragm epicoele 13, diaphragm cavity of resorption 14 is communicated with atmosphere, diaphragm epicoele 13 is connected with ball float guide valve component 7 in being arranged at water reservoir by pipeline 15, ball float guide valve component 7 is feed-water end 26 and the waterexit ends 25 that are provided with connection on pilot valve valve body 17, diaphragm epicoele 13 is connected with feed-water end 26 by pipeline 15, in pilot valve valve body 17, be provided with piston 19, piston 19 front portions are provided with the chock plug 18 corresponding with feed-water end 26, be hinged with rocking arm 22 in the rear end of pilot valve valve body 17; rocking arm 22 1 ends and piston 19 corresponding being in transmission connection; the other end is provided with first ball float 23; piston 19 middle parts are provided with breach 27; be provided with tapered end 20 and the spring 21 thereof corresponding with the breach 27 of piston 19 at pilot valve valve body 17 middle parts, tapered end 20 lower ends are connected with second ball float 24.

Referring to Fig. 2, ball float guide valve component 7 working principles: when drawdown, second ball float 24 is along with decline, when elastic force that the gravity of second ball float 24 makes progress greater than tapered end 20 inner springs 21, tapered end 20 is transferred to piston 19, this moment, first ball float 23 was under action of gravity, driving rocking arm 22 rotates, making rocking arm 22 stir piston 19 moves right, at this moment, the chock plug 18 at sealed mouth place is opened thereupon, and the press water of main valve diaphragm epicoele 13 is discharged by waterexit end 25, and valve plate 8 is opened behind valve valve plate 8 for medium under the effect of upstream pressure medium.When otherwise water level rises, have only when water level has reached first ball float, 23 prepositions, first ball float 23 promotes piston 19 by lever principle and moves to the left side, seal feed-water end 26, tapered end 20 pins piston 19 under 24 floating functions of second ball float at this moment, and the sealing surface reliable sealing is not moved, like this, can make the needs of water level, have a very wide water level control range according to user oneself, and simple in structure, reliable operation, long service life.

Referring to Fig. 1 and Fig. 2, working principle of the present utility model:

During proper functioning, before pressure medium enters the main valve valve, this moment, a part of pressure medium also entered in the main valve diaphragm epicoele 13 by modulating valve 11, because ball float guide valve component 7 is in the unlatching open mode, make that pressure can not keep continuous enlarging state in the main valve diaphragm epicoele 13, at this moment, medium constantly is transported in container or the pond.

When medium in container or the pond reached the setting height, first ball float 23 of ball float guide valve component 7 was closed the feed-water ends 26 in the ball float guide valve component 7, and second ball float 24 that another easy on and off moves pins the piston 19 of ball float guide valve component 7.At this moment, pressure is in continuous enlarging state in the main valve diaphragm epicoele 13, promotes diaphragm pressing plate 5 drive valve plates 8 at last the main valve valve port is closed, and the process that medium is full of in container or the pond stops.

When the low water level of ball float below container or pool inner water position drop to, second ball float 24 is with piston 19 releases of ball float guide valve component 7, make ball float guide valve component 7 open feed-water end 26 sealing surface mouths, make diaphragm epicoele 13 pressure leakages of main valve, main valve is slowly opened supplying media in container or pond.

Claims

1, a kind of hydraulic control diaphragm type altitude valve, comprise valve body (1) and diaphragm seat (2), in the die cavity of diaphragm seat (2) and valve gap (3) formation, be provided with the diaphragm (4) that is divided into diaphragm epicoele (13) and diaphragm cavity of resorption (14), by-pass governing pipeline (16) one ends that are provided with modulating valve (11) and filter (12) are connected with the entrance point of valve body (1), the other end is connected with diaphragm epicoele (13), described diaphragm cavity of resorption (14) is communicated with atmosphere, it is characterized in that: described diaphragm epicoele (13) is connected by pipeline (15) the ball float guide valve component (7) interior with being arranged at water reservoir, described ball float guide valve component (7) is feed-water end (26) and waterexit end (25) that are provided with connection on pilot valve valve body (17), described diaphragm epicoele (13) is connected with described feed-water end (26) by pipeline (15), in described pilot valve valve body (17), be provided with piston (19), described piston (19) front portion is provided with the chock plug (18) corresponding with described feed-water end (26), be hinged with rocking arm (22) in the rear end of described pilot valve valve body (17), described rocking arm (22) one ends and corresponding being in transmission connection of described piston (19), the other end is provided with first ball float (23), described piston (19) middle part is provided with breach (27), be provided with tapered end (20) corresponding with the breach (27) of described piston (19) and spring (21) thereof at described pilot valve valve body (17) middle part, described tapered end (20) lower end is connected with second ball float (24).