CN217003201U - Novel short full-bore eccentric half-ball valve overhauls on line - Google Patents

Abstract

The utility model discloses a novel short full-bore eccentric half-ball valve for online maintenance, which comprises a valve body with flanges arranged at two ends and a half-ball valve clack arranged in the valve body, wherein a rotary shaft positioned in the valve body is respectively fixed at the upper part and the lower part of the half-ball valve clack, the rotary shaft at the upper end is in transmission connection with an actuator for controlling the rotation of the rotary shaft, the rotary shaft at the bottom is covered by a bottom cover and a sealing ring, and the bottom cover is fixedly connected with the valve body through a bolt. The structure of the utility model is more reasonable, the function of the full-bore eccentric half ball valve with the longest structure length is achieved by using the shortest structure length of the diameter-reduced eccentric half ball valve, and the utility model can save resources, save installation space, save manufacturing cost and save purchase cost.

Description

A new type of short full-bore eccentric hemispherical valve for online maintenance

technical field

The utility model relates to the technical field of valves, in particular to a novel short-type full-bore eccentric half-ball valve for online maintenance.

Background technique

With the continuous development of China's water supply and drainage industry, the eccentric hemispherical valve is particularly important as a valve on the pipeline. The main function of the eccentric hemispherical valve in the water supply and drainage pipeline is to cut off and connect the medium. When the customer chooses the eccentric hemispherical valve, there are two difficulties. One is that when the full-bore valve is used, 100% of the flow of the medium can be guaranteed, but the length of the structure is too long, which increases the workload during construction and sometimes creates space. Too small to accommodate valve installation. Second, the purchase cost is high. It is necessary to purchase a reduced-diameter eccentric hemispherical valve, because the reduced-diameter eccentric hemispherical valve has a short structural length, but the flow rate of the reduced-diameter is too small, which increases the cost of medium transportation.

Utility model content

In order to solve the above-mentioned problems, the purpose of this utility model is to provide a new short-type full-bore eccentric hemispherical valve for online maintenance, which is a new U-shaped post-processing mixer, which solves the problem that the existing mixer structure cannot be completely When decomposing a relatively high urea aqueous solution, the uniformity of ammonia is low, and it is easy to cause problems such as crystallization and clogging of the mixer, so as to achieve the purpose of improving the performance of the mixer under the condition of compact structure.

In order to achieve the above purpose, the technical scheme of the present utility model is as follows: a novel short-type full-bore eccentric hemispherical valve for online maintenance, comprising a valve body with flanges at both ends and a hemispherical valve disc set in the valve body. The upper and lower parts of the valve flap are respectively fixed with rotatable shafts located in the valve body, wherein the upper shaft is connected with the actuator which controls its rotation.

Further, the rotating shaft at the bottom is covered by a bottom cover and a sealing ring, and the bottom cover is fixedly connected with the valve body by bolts.

Further, the actuator is fixed on the receiving plate on the top of the valve body.

Further, the part where the top rotating shaft penetrates the valve body is covered with a packing gland.

Further, the inner side wall of the valve body part of one side flange is provided with a valve seat for contacting with the hemispherical valve disc.

Further, an annular rubber seat is provided on the convex surface of the hemispherical valve flap, which is in contact with the valve body side wall at each end flange.

Further, the rotating shaft at the top is fixedly connected with the hemispherical valve flap through a withdrawal pin.

Further, the rubber seat is pressed and fixed on the surface of the hemispherical valve disc by the annular pressure flange and the bolt.

Further, the top of the valve body is a detachable valve cover fixed by bolts, and the connecting plate is fixed on the valve cover.

Further, the bottom of the valve body is provided with a support baffle.

The structure of the utility model is more reasonable, and the shortest structural length of the eccentric hemispherical valve with reduced diameter can achieve the function of the full-bore eccentric hemispherical valve with the longest structural length, which can save resources, save installation space, save manufacturing costs, and save purchase costs.

Description of drawings

The present utility model will now be further described with reference to the accompanying drawings.

Fig. 1 is the front view structure schematic diagram of the utility model;

FIG. 2 is a schematic side view of the structure of the utility model.

Detailed ways

As shown in Figure 1-2, a new type of short full-bore eccentric hemispherical valve for online maintenance includes a valve body 2 with flanges 1 at both ends and a hemispherical disc 3 set in the valve body 2. The upper and lower parts of the valve flap 3 are respectively fixed with a rotatable rotating shaft 4 located in the valve body 2, wherein the rotating shaft 4 at the upper end is drivingly connected with the actuator 5 that controls its rotation, and the rotating shaft 4 at the bottom is covered by the bottom cover 6 and the sealing ring, and the bottom rotating shaft 4 is covered by the bottom cover 6 and the sealing ring. The cover 6 is fixedly connected to the valve body 2 through bolts.

The actuator 5 is fixed on the connecting plate 7 on the top of the valve body 2, and the part of the top rotating shaft 4 passing through the valve body 2 is covered with a packing gland 8, and the inner side wall of the valve body 2 part of one side of the flange 1 is provided with The valve seat 9 that is in contact with the hemispherical valve flap 3 is provided with an annular rubber seat 10 on the convex surface of the hemispherical valve flap 3 to contact the side walls of the valve body 2 at each end flange 1 .

The rotating shaft 4 on the top and the hemispherical valve disc 3 are fixedly connected by the withdrawal pin 11, the rubber seat 10 is pressed and fixed on the surface of the hemispherical valve disc 3 by the annular pressure flange 12 and bolts, and the top of the valve body 2 is fixed by bolts. The valve cover 13 is detachable, the receiving plate 7 is fixed on the valve cover 13, and the bottom of the valve body 2 is provided with a support baffle 14.

The above descriptions are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention shall fall within the protection scope of the present invention.

Claims (10)

1. The utility model provides a novel eccentric hemisphere valve of latus rectum is entirely overhauld to short type, sets up hemisphere valve clack (3) that set up in valve body (2) and the valve body (2) of ring flange (1) including both ends, its characterized in that: the upper part and the lower part of the hemispherical valve clack (3) are respectively fixed with a rotatable rotating shaft (4) positioned in the valve body (2), wherein the rotating shaft (4) at the upper end is in transmission connection with an actuator (5) for controlling the rotation of the rotating shaft.

2. A novel short full-bore eccentric half-ball valve for on-line maintenance as claimed in claim 1, wherein: the rotating shaft (4) at the bottom is covered by a bottom cover (6) and a sealing ring, and the bottom cover (6) is fixedly connected with the valve body (2) through a bolt.

3. A novel short full-bore eccentric half-ball valve for on-line maintenance as claimed in claim 1, wherein: the actuator (5) is fixed on a flange (7) at the top of the valve body (2).

4. A novel short full-bore eccentric half-ball valve for on-line maintenance as claimed in claim 1, wherein: wherein, the part of the rotating shaft (4) at the top part, which penetrates through the valve body (2), is covered with a packing gland (8).

5. A novel short full-bore eccentric half-ball valve for on-line maintenance as claimed in claim 1, wherein: the inner side wall of the valve body (2) of the flange plate (1) at one side is provided with a valve seat (9) which is used for being contacted with the hemispherical valve clack (3).

6. A novel short full-bore eccentric half-ball valve for on-line maintenance as claimed in claim 1, wherein: an annular rubber seat (10) is arranged on the convex surface of the hemispherical valve clack (3) and is contacted with the side wall of the valve body (2) at the flange plate (1) at each end.

7. A novel short full-bore eccentric half-ball valve for on-line maintenance as claimed in claim 1, wherein: the rotating shaft (4) at the top is fixedly connected with the hemispherical valve clack (3) through a withdrawal pin (11).

8. A novel short full-bore eccentric half-ball valve for on-line maintenance as claimed in claim 6, wherein: the rubber seat (10) is pressed and fixed on the surface of the hemispherical valve clack (3) through an annular pressing flange (12) and a bolt.

9. A novel online maintenance short full-bore eccentric half-ball valve as claimed in claim 3, characterized in that: the top of the valve body (2) is a detachable valve cover (13) fixed through bolts, and the flange (7) is fixed on the valve cover (13).

10. A novel short full-bore eccentric half-ball valve for on-line maintenance as claimed in claim 1, wherein: the bottom of the valve body (2) is provided with a supporting baffle (14).

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