CN202629158U

CN202629158U - Titanium ball valve

Info

Publication number: CN202629158U
Application number: CN 201220254769
Authority: CN
Inventors: 卓桂朝; 罗起飞; 戴文柏
Original assignee: SHENGBOLAI VALVE CO Ltd
Current assignee: SHENGBOLAI VALVE CO Ltd
Priority date: 2012-05-31
Filing date: 2012-05-31
Publication date: 2012-12-26
Anticipated expiration: 2022-05-31

Abstract

The utility model discloses a titanium ball valve. The titanium ball valve comprises a valve body, a valve cover, a valve seat, a valve rod, a ball body, an upper supporting plate, a lower supporting plate, positioning pins, a packing box, a packing pressing plate and a packing pressing sleeve, wherein the upper supporting plate is arranged above the ball body; the lower supporting plate is arranged under the ball body; a disc spring is arranged in the lower supporting plate; and an adjusting pad is arranged in the upper supporting plate. The titanium ball valve is good in sealing property, long in service life, easy to manufacture, convenient to maintain and attractive in appearance.

Description

A kind of titanium ball valve

Technical field

The utility model relates to a kind of titanium ball valve; Be particularly related to a kind of filler pretension specific pressure can regulate with and ball centre can be along stem shaft to fine setting; Be applicable to the medium operating mode of carrying gaseous state, liquid state or containing particle, be particularly useful for the PTA project and contain a kind of titanium ball valve of Korrosionsmedium operating mode.

Background technique

At present, common fixing ball valve does not all adopt the external Gland, so its filler pretension specific pressure can not onlinely be adjusted, in case occur to leak at the valve packing place, can only take to stop and changes the method for filler; To bring many losses to the client like this, particularly when carrying poisonous or during medium that corrosivity is very strong, the consequence that causes is more serious.

In addition, common ball valve is when assembling, and ball centre can not be done fine setting along its valve rod axis direction, can not compensate the positional error between the positioning pin hole that is:; In case this situation occurs, during installation, valve seat and ball seal sub-center can not well coincide, and then influence the valve seal effect, when serious, be prone to cause valve to reveal or seal failure.

The model utility content

The technical problem that the utility model will solve provides that a kind of have can online adjustment filler pretension specific pressure, and efficiency of assembling is high, good seal performance, a kind of adjustable titanium ball valve that reliability is high.

For achieving the above object, the technological scheme of the utility model is following:

A kind of titanium ball valve comprises valve body, valve gap, valve seat, valve rod, spheroid, upper backup pad, lower supporting plate, locating stud, Stuffing box, hold-down grid and filler gland, and said upper backup pad is placed in the spheroid top, said lower supporting plate is placed in the spheroid below; Be provided with the dish spring in the said lower supporting plate, be provided with spacer in the said upper backup pad.

Preferably, said hold-down grid is provided with double-screw bolt and nut.

Preferably, be provided with the gap between said Stuffing box and the filler gland.

Through technique scheme, the beneficial effect of the utility model is:

The utility model lower supporting plate is provided with the dish spring, and this dish spring not only can carry the weight of spheroid, and can regulate the radial distance between ball centre and the valve seat runner center line through the decrement that changes the dish spring.Thereby make valve seat and ball seal sub-center set up good identical relation, improved the sealability of valve.

In addition, adopt the external Gland can online pretension filler, and need not to dismantle valve components, saved maintenance cost greatly, simultaneously, guaranteed that valve stem seal reliably and with long-term.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model spacer installing structure schematic representation;

Fig. 3 is the utility model dish spring installing structure schematic representation.

The numeral corresponding part title represented among the figure with letter:

10, valve body 20, valve gap 30, valve seat 40, valve rod 50, spheroid 60, upper backup pad 70, lower supporting plate 80, locating stud 90, Stuffing box 100, hold-down grid 110, filler gland 120, dish spring 130, spacer 140, double-screw bolt 150, nut 160, gap

Embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.

Extremely shown in Figure 3 referring to Fig. 1; A kind of titanium ball valve of the utility model comprises valve body 10, valve gap 20, valve seat 30, valve rod 40, spheroid 50, upper backup pad 60, lower supporting plate 70, locating stud 80, Stuffing box 90, hold-down grid 100 and filler gland 110, and said upper backup pad 60 is placed in spheroid 5 tops, said lower supporting plate 70 is placed in spheroid 50 belows; Be provided with dish spring 120 in the said lower supporting plate 70, be provided with spacer 130 in the said upper backup pad 60.

The utility model hold-down grid 100 is provided with double-screw bolt 140 and nut 150, is provided with gap 160 between said Stuffing box 90 and the filler gland 110.

The utility model valve rod 40 is connected with transmitting torque through flat side (not marking among the figure) with spheroid 50; The torsional interaction that provides when actuator was in 40 last times of valve rod; Can make valve rod 40 drive spheroid 50 rotations, thereby change the keying function that circulation area realizes valve.

The utility model dish spring 120 is arranged on spheroid 50 belows; Be provided with spacer 130 in the upper backup pad 60 of spheroid 50 tops; When between needs adjustment spheroid 50 centers and the valve seat 30 runner center lines apart from the time; Can be through the thickness of change spacer 130, the decrement that promptly changes dish spring 120 realizes regulatory function.

The utility model is designed with gap 160 between filler gland 110 and Stuffing box 90; So when leaking appears in the valve packing place; Can be through tightening the nut 150 on the hold-down grid 100, the method that promptly increases the filler pretightening force is blocked this place's leakage, thereby makes valve reliable operation again.

The utlity model has good seal performance, long, easy manufacturing of life-span in sum, be convenient to advantages such as maintenance and beautiful shape.

More than show and described basic principle of the utility model and the advantage of major character and the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.

Claims

1. titanium ball valve; Comprise valve body, valve gap, valve seat, valve rod, spheroid, upper backup pad, lower supporting plate, locating stud, Stuffing box, hold-down grid and filler gland, said upper backup pad is placed in the spheroid top, said lower supporting plate is placed in the spheroid below; It is characterized in that: be provided with the dish spring in the said lower supporting plate, be provided with spacer in the said upper backup pad.

2. a kind of titanium ball valve according to claim 1, it is characterized in that: said hold-down grid is provided with double-screw bolt and nut.

3. a kind of titanium ball valve according to claim 1 is characterized in that: be provided with the gap between said Stuffing box and the filler gland.