CN2105601U

CN2105601U - Triple ball valve

Info

Publication number: CN2105601U
Application number: CN 91216441
Authority: CN
Inventors: 刘学义
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-06-12
Filing date: 1991-06-12
Publication date: 1992-05-27

Abstract

The utility model relates to a triple ball valve. The mass of the existing ball valves are two-way ball valves which have the defects of poor sealing effect, complex structure, etc. The technical design of the utility model is a triple structure, a valve body adopts a separate valve cover structure and adopts top thread to seal, so the utility model has the advantages of simple structure, easy processing and manufacture and low cost. The triple ball valve can be opened and closed not only straight, but also vertically, and the triple ball valve can simultaneously lead a certain flow quantity to two passageways, so the use of the triple ball valve is easy.

Description

Triple ball valve

The utility model relates to a kind of ball valve, particularly a kind of tee ball valve.

At present, the ball valve of being introduced on the industrial employed and valve design handbook generally can be divided into two classes.One class is a Fixed ball valve, promptly its spool (or claim spheroid) valve to open and close in the process its sphere center position constant, that is to say, rotate around an axis in rotary course as the spheroid of spool.Though this valve is applicable to the control of high-pressure liquid and is used as large bore valves, its complex structure, resistance is big when opening and closing, and is difficult for control flexibly during use, the easy abrasion of spool and valve seat.Another kind of is Float ball valve, though it is simple in structure, pressure by fed sheet of a media can reach sealing effect, but when high pressure as the spheroid of spool and bigger as the seal ring load of valve seat, the resistance of valve when opening and closing is also bigger, thereby also exists the problem of spool and the easy abrasion of valve seat.This two classes ball valve common drawback is owing to exist serious friction between spool and the valve seat, and their abrasion has caused the sealing effect variation, so cause leakage easily; In addition, they all exist as new valve not voluble shortcoming when bringing into use.A kind of advantage that has both above-mentioned two kinds of ball valves is provided for Chinese patent CN87207386 number in addition, and on the basis of above-mentioned two kinds of ball valves, made the ball valve of significant improvement, make it on processing technology, be similar to Float ball valve (because of the processing technology that makes simple in structure also simple), and on application area, be similar to Fixed ball valve, thereby occasion applicable to High Temperature High Pressure and big flow, and make it possess good seal performance, the spool valve seat is difficult for abrasion, advantage such as laborsaving and long service life during keying, it is a kind of ball valve that is used for fluid control, mainly by valve body, valve gap, top cover, side's tenon, the circle axle, seal ring, composition such as spool and valve seat, it is characterized in that said spool is made of two hemispheres, said circle axle is by the axostylus axostyle at two ends, cam and middle ring bodies constitute, this ring bodies is in the inside that two hemispheres are filled the span of a man's arms, the cam of circle axle touches mutually with hemispheroidal neck, and its surface of contact is the constant speed helicoid.Though this ball valve is better than preceding two kinds.But its structure and manufacturing are comparatively complicated, the cost height, and also most critical is that it is two general formula ball valves.

The utility model improves at the problem that prior art exists, and a kind of manufacturing simple in structure, easy, tee ball valve that cost is low are provided.

The utility model is achieved by following manner: a kind of ball valve, comprise valve body, ball-type spool and go up commentaries on classics core and gland, valve gap and seal ring, gland and valve body are connected by screw, and the gland bottom protrusion has seal ring (or filler), plays seal action.Feature of the present utility model is: said valve body is designed to three-port structure, and be mutually hexagonal angle after the axes intersect of each passage, in valve body, be that the center is provided with the ball-type spool simultaneously with each crossing point of axes, be provided with through hole and two through hole axis angle in it and also be 120 °, on the ball-type valve body, be provided with and its valve gap that is connected by screw, ball-type spool and valve body the right and left channel interface place and ball-type spool and valve gap channel interface place are provided with seal ring, wherein be provided with the jackscrew (see figure 1) behind the seal ring on valve body the right, adding man-hour, valve body and ball-type spool can casting processing, each passage is cast out, process the screw thread of the right passage of valve body then, load onto the seal ring at jackscrew and left and right sides channel interface place, load onto the ball-type spool then, again valve gap and seal ring are loaded onto, tightened up, at place, the right passway of valve body jackscrew is screwed at last and make seal ring reach the excellent sealing state with screw.During use, but core drive ball-type spool is changeed in turn, makes each passage be in state logical, half on-off.As making left and right sides passage, going up and right or up and the connection of left passage or the like.Present technique to 2 inches with interior tee ball valve, each passage of its valve body and gland and valve and pipeline can adopt and be threaded, to the tee ball valve more than 2 inches, its valve body can adopt screw to be connected with flange with gland and each passage of valve with pipeline.

The utility model is compared with prior art, has simple in structure, easy manufacturing, low cost of manufacture, but through swtich, again can 90 ° of switches can also respectively feed certain flow to two passages simultaneously, and is therefore easy to use.

Fig. 1 is the plan view that the utility model is used for pipeline more than 2 inches.

Fig. 2 is the A-A sectional drawing of Fig. 1.

Fig. 3 is that the utility model is used for 2 inches plan views with interior conduit.

Fig. 4 is the B-B sectional drawing of Fig. 3.

Fig. 1,2 is the flange screw connection.Fig. 3,4 is for being threaded.

Among the figure: 1 valve body, 2 valve gaps, 3 seal rings, 4 ball-type spools, 5 screws, 6 seal rings, 7 jackscrews, 8 seal rings, 9 screws, 10 valve gap passages, 11 valve gap passage axis, the right passage of 12 valve bodies, the right passage axis of 13 valve bodies, 14 valve bodies left side passage axis, 15 valve bodies left side passage axis, 16 seal rings (or filler), 17 glands, 18 change core, 19 screws.

Most preferred embodiment of the present utility model is shown in Fig. 1-4.A kind of ball valve comprises valve body 1, ball-type spool 4 and goes up commentaries on classics core 18 and gland 17, valve gap 2 and seal ring that gland 17 is connected by screw 19 with valve body 1, and gland 17 bottom protrusion have seal ring 16(or filler), play seal action.Feature of the present utility model is: said valve body 1 is designed to three-port structure, and each

path

10,12, be mutually hexagonal angle after 15 the axes intersect, simultaneously in valve body 1 with each axis 11,13,14 intersection points are that the center is provided with ball-type spool 4, be provided with through hole and two through hole axis angle in it and also be 120 °, on ball-type valve body 4, be provided with and its valve gap 2 that is connected by screw 5, ball-type spool 4 and valve body 1 the right and

left passage

12,15 jointings and ball-type spool 4 are provided with seal ring 8 with valve gap path 10 jointing, 6 and 3, wherein be provided with jackscrew 7(behind the seal ring 6 on valve body 1 the right and see Fig. 1), adding man-hour, valve body 1 and ball-type spool 4 can casting processing, each passage is cast out, process the screw thread of valve body 1 right passage 12 then, load onto the

seal ring

8 and 6 at jackscrew 7 and left and right sides channel interface place, load onto ball-type spool 4 then, again valve gap 2 and seal ring 3 are loaded onto, tightened up, in the right passage of valve body 12 outlet ports jackscrew 7 is screwed at last and make seal ring 6 reach the excellent sealing state with screw 5.During use, but core 18 drive ball-type spools 4 are changeed in turn, make each

passage

15,12,10 be in state logical, half on-off.As making left and

right sides passage

15 and 12, going up and right 10 and 12 or go up and a

left side

10 and 15 passages are connected or the like.Present technique to 2 inches with interior tee ball valve, each

passage

15,12,10 of its valve body 1 and gland 2 and valve and pipeline can adopt and be threaded, to the tee ball valve more than 2 inches, its valve body can adopt screw to be connected with flange with gland 2 and each

passage

15,12,10 of valve with pipeline.

Claims

A kind of ball valve, comprise valve body, ball-type spool, valve gap and seal ring, it is characterized in that said valve body is a three-port structure, and each passage axis is mutually hexagonal angle after intersecting, in valve body, be that the center is provided with the ball-type spool simultaneously with each crossing point of axes, be provided with through hole and two through hole axis angle in it and also be 120 °, on valve body, be provided with and its valve gap that is connected by screw, ball-type spool and valve body the right and left channel interface place and spool and valve gap channel interface place are provided with seal ring, wherein are provided with jackscrew behind the seal ring on valve body the right.