CN201100443Y

CN201100443Y - A ball valve with adjusting flux

Info

Publication number: CN201100443Y
Application number: CNU2007200467052U
Authority: CN
Inventors: 吴万江; 刘红
Original assignee: 吴万江
Current assignee: Jiangsu Jiangheng Valve Industry Co., Ltd.
Priority date: 2007-09-15
Filing date: 2007-09-15
Publication date: 2008-08-13
Anticipated expiration: 2017-09-15

Abstract

The utility model relates to a ball valve used for transporting the grain medium of coal liquid, sand and the like under the bad working situation, in particular to a ball valve through adding a device for regulating flow in a valve ball inner cavity of the ball valve, comprising a sphere, a butterfly plate rotating rod, a butterfly plate, a ball valve rod, a limit bolt, a butterfly plate turning flat, a connecting rod, a regulating screw rod, a regulating flow nut, a fixing bolt, a ball handle and a fixing bolt. The ball valve is characterized in that the butterfly plate and a butterfly plate rotating rod are added in the sphere inner cavity of the ball valve, fixed through the fixing bolt inside a valve cavity, and connected with a butterfly plate turning handle, the connecting rod, the regulating screw rod and the regulating flow nut; when the ball valve is opened, a run-through hole of the sphere is completely consistent with a channel. If the inner flow of the pipeline is required to regulate, the user only needs to regulate the flow nut to let the butterfly plate rotate through the plate rotation. The size of the rotating angle of the butterfly plate decides the size of the inner flow of the pipeline. Since regulating the flow is started when the ball valve is completely opened, the medium in the pipeline doesn't wash or erode a valve pedestal, thereby avoiding the abrasion of the valve pedestal because of contacting the medium in the pipeline, causing the ball valve to keep good sealing property during the utilizing, and prolonging the utilizing life.

Description

A kind of ball valve of can regulate flow

Affiliated technical field

The utility model relates to a kind of under bad working environments, is used in the ball valve of a granule medium output such as coal slurry, silt, especially by in the valve ball inner chamber of ball valve, increases the ball valve of regulating flow meter.

Background technique

Valve is a kind of universal machine product that has a large capacity and a wide range, and it is installed in the various piping system, is used for controlling flow, the flow direction and the pressure etc. of pipeline fed sheet of a media.Traditional ball valve is the rotation by the ball valve interior spheroid, when the penetration hole of spheroid and passage one then, valve is all opened, when rotating 90 ° again, the penetration hole of spheroid and channel vertical, valve closing then, in order to regulate the flow in the pipeline, traditional way is that part is opened ball valve, at this moment, the penetration hole of spheroid has the passage that a part is led to ball valve, the part valve seat then direct and in the ball valve that does not lead to passage contacts, under bad working environments, and the silt of carrying in the pipeline, a continuous erosion corrosion valve seat of granule medium meeting such as coal oar, in very short time, valve seat can cause damaged because of the erosion corrosion of medium, leaks thereby produce, and causes medium waste in the pipeline, befouling environment, bigger shortening the working life of ball valve.

Summary of the invention

In order to overcome existing ball valve when regulating the flow size, valve seat in its spheroid is subjected to the medium erosion corrosion in the pipeline and has reduced the sealability of ball valve, cause leakage, and influence ball valve working life the aspect deficiency, the utility model provides a kind of ball valve of brand-new can regulate flow, it is easy to operate that the ball valve of this can regulate flow has Flow-rate adjustment, improves the sealability of ball valve own, the characteristics that prolong working life.

The technical solution of the utility model is: the ball valve of this can regulate flow comprises auxiliary valve body, valve seat, spheroid, the butterfly plate swingle, the dish plate, ball valve valve rod main valve body, stop screw, the butterfly plate steering tiller, connecting rod, adjusting screw rod, regulate the flow nut, ball valve handle, set screw, it is characterized in that having increased butterfly plate and butterfly plate swingle in the sphere cavity of described ball valve, the two links to each other by set screw, with the butterfly plate steering tiller, connecting rod, adjusting screw rod links to each other with adjusting flow nut, the adjusting screw rod afterbody is the adjusting nut of a hexagonal configuration, changeing butterfly plate for plate uses, front end is that internal thread matches with the adjusting screw rod outside thread, as regulating the butterfly plate flow, drivening rod advances or retreats during rotation, connecting rod is the square strip band steel of a block length, insert in the adjusting screw rod front end rectangular tongue-and-groove rear end, insert Xiao Zi, front end inserts the butterfly plate steering tiller, front end is a square mortise, be enclosed within on the tenon of butterfly plate swingle upper end four directions, butterfly plate swingle bottom has a plane to match with the butterfly plate plane, with two fixedly screw location screw, according to above-mentioned steps, in the sphere cavity of ball valve, form the butterfly plate device of can regulate flow.

The beneficial effect that the utlity model has is: owing to increased butterfly plate and butterfly plate swingle in the sphere cavity of can regulate flow ball valve, when ball valve is opened, the penetration hole and the passage of spheroid are in full accord, if when needing to regulate the flow in the pipeline, only need to tune the amount of restriction nut by plate, pass through adjusting screw rod, connecting rod, the butterfly plate swingle, the butterfly plate steering tiller, the butterfly plate swingle, the drive butterfly plate rotates regulates flow, the size of butterfly plate rotation angle, the size of decision flow, because when regulating flow, penetration hole is in full accord with passage all the time in the valve ball spheroid, silt in the pipeline, a granule medium such as coal oar does not contact with sealing surface of seat in the ball valve, can not produce sealing surface of seat and directly wash away, corrosion, thereby the wearing and tearing of having avoided valve seat to produce because of medium in the contact pipeline, make ball valve in use keep excellent sealing performance, prolonged the working life of ball valve.

Description of drawings:

Accompanying drawing 1, be structure sectional view of the present utility model;

2, be that the utility model is regulated the flow meter structural representation;

3, regulate the flow schematic representation.

1 auxiliary valve body, 2 valve seats, 3 spheroids, 4 butterfly plate swingles, 5 butterfly plates, 6 ball valve bodies, 7 main valve bodies, 8 spacing Luo Ding, 9 butterfly plate steering tillers, 10 connecting rods, 11 adjusting screw rods, 12 are regulated flow nut, 13 ball valve handles, 14 set screws among the figure.

Embodiment

Be described further below in conjunction with accompanying drawing:

By shown in Figure 1, this can regulate flow ball valve comprises: auxiliary valve body 1, valve seat 2, spheroid 3, butterfly plate swingle 4, butterfly plate 5, ball valve valve rod 6, main valve body 7, stop screw 8, butterfly plate steering tiller 9, connecting rod 10, adjusting screw rod 11 is regulated flow nut 12, ball valve handle 13, set screw 14.The described rotation butterfly plate 5 that is characterised in that is regulated flow, during operation, tunes amount of restriction nut 12 by the up time needle plate, the translation forward of adjusting screw rod 11 this moment, and drivening rod 10, butterfly plate steering tiller 9, butterfly plate swingle 4, butterfly plate 5 is to rotation counterclockwise, at this moment, butterfly plate 5 is opened gradually, and flow increases along with opening gradually of butterfly plate 5 in the ball hole, when butterfly plate 5 was opened fully, the plane paralleled with spheroid 3 through holes.Plate tunes amount of restriction nut 12 to rotation counterclockwise, and then butterfly plate 5 is closed gradually, and along with closing gradually of butterfly plate 5, flow reduces gradually until stopping in the ball hole, and the plane links to each other vertical with spheroid 3 through holes when butterfly plate 5 is closed fully.

Claims

1, a kind of ball valve of can regulate flow, comprise: auxiliary valve body, valve seat, spheroid, butterfly plate swingle, dish plate, ball valve valve rod main valve body, stop screw, butterfly plate steering tiller, connecting rod, adjusting screw rod, adjusting flow nut, ball valve handle, set screw is characterized in that: in the sphere cavity of described ball valve, increased butterfly plate and linked to each other with butterfly plate steering tiller, connecting rod, adjusting screw rod and adjusting flow nut, constituted the flow regulator of the ball valve of can regulate flow with the butterfly plate swingle.

2, according to the ball valve of right 1 described can regulate flow, it is characterized in that; When ball valve was opened, the penetration hole of spheroid tuned the amount of restriction nut with in full accord all by the up time needle plate, and by adjusting screw rod, connecting rod, butterfly plate steering tiller, butterfly plate swingle, plate revolve the butterfly plate rotation, press butterfly plate angle of swing size, regulate the flow size