CN213839636U - Tank bottom ball valve - Google Patents

Abstract

The utility model relates to the field of valves, a tank bottoms ball valve is disclosed, including valve body and spheroid, the valve body includes left valve body and right valve body, the spheroid is installed between left valve body and right valve body, left side valve body is fixed with right valve body, install the sealing washer between spheroid and valve body, the spheroid includes interior spheroid and outer spheroid, and the inside appearance chamber that holds interior spheroid that has of outer spheroid, outer spheroid has import and export that can communicate pipeline and the inside passageway of interior spheroid, interior spheroid can be in holding the intracavity rotation, outer spheroid comprises detachable two parts, interior spheroid is changed or is installed through the outer spheroid of detachable. The utility model discloses a tank bottoms ball valve need not to empty the fluid in the jar when the ball valve damages and also can change.

Description

Tank bottom ball valve

Technical Field

The utility model belongs to the technical field of a ball valve technique and specifically relates to a tank bottoms ball valve technical field.

Background

In order to reduce the delay of tank bottoms liquid, the retention of spheroid and tank bottoms bottom is as far as possible few, general tank bottoms ball valve need be at tank bottoms welded flange when the installation, the tank bottoms ball valve passes through the flange and is connected with the tank bottoms, compare and be directly connected tank bottoms ball valve with the tank bottoms ball valve, for example, the welding, it is unfavorable to the antiseep to have increased mechanical connection point undoubtedly through flange joint, and increased the retention between tank bottoms bottom and the tank bottoms ball valve, with tank bottoms ball valve welding at the tank bottoms, it also has some shortcomings, for example when tank bottoms ball valve sealing washer commonly used rather than using the disk seat to form sealed face, this moment, the spheroid is in long-time use, the wearing and tearing lead to the precision to descend, spheroid and valve body part scraping wearing and tearing, damage with higher speed. No matter be through flange joint or directly be connected with the tank bottoms, when tank bottoms ball valve damaged, need empty the interior liquid of jar, it wastes time and energy to change.

Disclosure of Invention

The utility model aims to solve the technical problem that a tank bottoms ball valve convenient to change is provided.

In order to realize above purpose, the utility model provides a tank bottoms ball valve, including valve body and spheroid, the valve body includes left valve body and right valve body, the spheroid is installed between left valve body and right valve body, left side valve body is fixed with right valve body, the sealing washer with the spheroid contact is installed to the valve body, left side valve body installs the sealing washer with right valve body contact, the spheroid includes interior spheroid and outer spheroid, and outer spheroid is inside to have the appearance chamber that holds interior spheroid, outer spheroid has import and export that can communicate pipeline and the inside passageway of interior spheroid, interior spheroid can be in holding the intracavity rotation, outer spheroid comprises detachable two parts, interior spheroid is changed or is installed through the outer spheroid of detachable. .

Furthermore, the inner sphere is connected with the actuator through the valve rod, the outer sphere is provided with a round hole for the valve rod to pass through, the other side of the outer sphere opposite to the hole is provided with a polygonal groove or shaft, and the outer sphere can be rotated through the groove or shaft.

Further, the right valve body comprises a first valve body and a second valve body, the first valve body and the second valve body are detachably connected, and the inner ball body can be replaced or installed through the second valve body.

Furthermore, sealing gaskets are arranged between the valve body and the valve rod and between the combination surfaces of the first valve body and the second valve body.

The utility model has the advantages that:

the utility model discloses a spheroid includes outer spheroid and the interior spheroid of independent rotation, wherein interior spheroid passes through the valve rod and links to each other with the executor, opening and close of valve is accomplished by interior spheroid, the valve body that outer spheroid mainly used protection and tank bottoms are connected, spheroid and valve body wearing and tearing when avoiding the valve to open and close, outer spheroid is in the state of opening in normal use, form the runner that supplies liquid to flow with interior spheroidal passageway together, damage when tank bottoms ball valve, for example, when interior spheroid damages, and need not empty the jar interior liquid, but will outer spheroid is rotatory and cut off the runner with outer spheroid, the size and the position of second valve body and outer spheroid hemisphere are unanimous, through opening the second valve body, and with the rotatory outer spheroid of the instrument with polygonal groove on the outer spheroid or axle matching, cut off the runner, dismantle outer spheroidal hemisphere, change interior spheroid. Because the groove or the shaft on the outer ball body is positioned on the extension line of the valve rod, the valve rod does not influence the rotation of the outer ball body around the axis of the valve rod.

Between the valve rod and the valve body and between the ball body and the valve body, the joint surface of the left valve body and the right valve body and the joint surface of the first valve body and the second valve body are provided with sealing rings or sealing gaskets, so that leakage can be prevented.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a schematic cross-sectional view of a sphere.

Description of reference numerals: 1. a valve body; 101. a left valve body; 102. a right valve body; 103. a first valve body; 104. a second valve body; 2. a sphere; 201. an outer sphere; 202. an inner sphere; 203. a large hemisphere; 204. a small hemisphere; 205. a cavity; 206. an inlet; 207. an outlet; 3. a bolt; 4. a channel; 5. a valve stem; 6. an aperture; 7. an actuator; 8. a card slot; 9. a gasket; 10. a groove; 11. a seal ring; 12. and (4) a flange.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1 and 2, a tank bottom ball valve of the present invention comprises a valve body 1 and a ball body 2, the valve body 1 comprises a left valve body 101 and a right valve body 102, the ball body 2 is installed between the left valve body 101 and the right valve body 102, the left valve body 101 and the right valve body 102 are fixed together by bolts 3, the left valve body 101 can be connected with a flange 12 by bolts, the ball body 2 comprises an inner ball body 202 and an outer ball body 201, the inner ball body 202 has a channel 4 inside, the outer ball body 201 has a cavity 205 capable of accommodating the inner ball body 202, the outer ball body 201 has an inlet 206 and an outlet 207 capable of communicating the channel 4 inside the inner ball body with a pipeline, the channel 4 can communicate with the pipeline to form a flow passage for fluid flow, the inner ball body 202 and the outer ball body 201 can be controlled separately, the inner ball body 202 can rotate in the cavity 205 and can be used for cutting off the flow passage, the inner ball body 202 is connected with a valve stem 5, the outer ball body 201 is provided with a circular hole 6 for the valve stem 5 to pass through, the outer sphere 201 is rotatable around a valve rod 5, the valve rod 5 is connected with an actuator 7, and the actuator 7 may include a manual actuator, an electric actuator, and the like in the prior art. Under the normal condition, outer spheroid 201 is in the open mode, opening and close of valve is realized by interior spheroid 202, executor 7 drives valve rod 5, valve rod 5 drives interior spheroid 202 rotation control ball valve and opens and close, outer spheroid 201 comprises detachable two parts, outer spheroid 201 can be formed by two hemisphere combinations, also can pass through draw-in groove 108 joint together by a big hemisphere 203 and a little hemisphere 204, can be equipped with sealed pad 9 in the draw-in groove 108, outer spheroid 201 of interior spheroid 202 accessible detachable is changed and is installed.

In the above embodiment, referring to fig. 1, the other side of the outer sphere 201 is provided with a second valve stem opposite to the hole 6, the second valve stem is connected with a second actuator, which may be a manual actuator, when the inner ball 202 needs to be replaced, the outer ball 201 can be controlled to close by a second actuator, and generally, the embodiment is suitable for a common tank bottom ball valve with a valve rod 5 and a vertical flow passage of a second valve rod, for a tortured tank bottom ball valve, since the first valve stem 5 and the second valve stem 5 need to be kept in the same line, there may be a problem of insufficient installation space, and an improved scheme is that the other side of the outer sphere 201 is provided with a polygonal groove 10 opposite to the hole 6, the groove 10 can be replaced by a shaft, the groove 10 is in the same line with the valve rod 5, since the outer sphere 201 is only controlled when it needs to be replaced or repaired, the outer sphere 201 is rotated by a special tool cooperating with said groove 10.

In the above embodiment, referring to fig. 1, the right valve body 102 includes the first valve body 103 and the second valve body 104, the first valve body 103 and the second valve body 104 are detachably connected and include a bolt 3 connection, the second valve body 104 is disposed between the left valve body 101 and the first valve body 103, and a gasket 9 is disposed between the first valve body 103 and the second valve body 104, it should be noted that the second valve body 104 is only a small portion of the right valve body 102, and the size of the second valve body is matched with the size of the small hemisphere 204, and the small hemisphere 204 is positioned to face the second valve body 104 when the outer sphere 201 is closed, at this time, the right valve body 102 and the left valve body 101 still fix the large hemisphere 203, and the large hemisphere 203 can effectively close the valve, that is, the second valve body 104, the small hemisphere 204 and the inner sphere 202 are removed, so that the flow passage of the large hemisphere 203 is not affected.

In the above embodiment, as shown in fig. 1, the seal rings 11 are provided between the stem 5 and the valve body 1, and between the ball 2 and the valve body 1, and the gaskets 9 are provided on the joint surfaces of the left valve body 101 and the right valve body 102, and the joint surfaces of the first valve body 103 and the second valve body 104.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (4)

1. The utility model provides a tank bottoms ball valve, includes valve body and spheroid, the valve body includes left valve body and right valve body, the spheroid is installed between left valve body and right valve body, left side valve body is fixed with right valve body, and the sealing washer with spheroid contact is installed to institute's valve body, left side valve body install with the sealing washer of right valve body contact, characterized by: the spheroid includes interior spheroid and outer spheroid, and spheroid inside has the appearance chamber that holds interior spheroid, outer spheroid has import and export that can communicate the inside passageway of pipeline and interior spheroid, interior spheroid can be in holding the intracavity rotation, outer spheroid comprises detachable two parts, interior spheroid is changed or is installed through detachable outer spheroid.

2. A canister bottom ball valve as claimed in claim 1, wherein: the inner ball body is connected with the actuator through the valve rod, the outer ball body is provided with a round hole for the valve rod to pass through, the other side of the outer ball body, which is opposite to the round hole, is provided with a polygonal groove or shaft, and the outer ball body can be rotated through the groove or shaft.

3. A canister bottom ball valve as claimed in claim 2, in which: the right valve body comprises a first valve body and a second valve body, the first valve body and the second valve body are detachably connected, the outer ball body comprises a large hemisphere and a small hemisphere, when the outer ball body closes the valve, the small hemisphere is over against the second valve body, and the inner ball body and the small hemisphere can be replaced or installed through the second valve body.

4. A canister bottom ball valve according to claim 3, characterised in that: and a sealing ring is arranged between the valve rod and the valve body, and a sealing gasket is arranged on the joint surface of the first valve body and the second valve body.

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