CN222687356U

CN222687356U - A double ball valve

Info

Publication number: CN222687356U
Application number: CN202421488525.XU
Authority: CN
Inventors: 陈佳乐
Original assignee: Shanghai Taitu Valve Technology Co ltd
Current assignee: Shanghai Taitu Valve Technology Co ltd
Priority date: 2024-06-27
Filing date: 2024-06-27
Publication date: 2025-03-28
Anticipated expiration: 2034-06-27

Abstract

The utility model relates to the technical field of ball valves, and discloses a double ball valve, comprising a valve body, flanges are fixedly installed on both left and right ends of the valve body, a first ball valve chamber is opened on the left side of the interior of the valve body, a second ball valve chamber is opened on the right side of the interior of the valve body, a first ball valve component is arranged inside the first ball valve chamber, a second ball valve component is arranged inside the second ball valve chamber, the first ball valve component comprises a ball, the ball is movably installed inside the first ball valve chamber, protective components are arranged on the left and right sides of the ball inside the first ball valve chamber, a valve stem is fixedly installed on the top of the ball, and by installing the valve body, the first ball valve component, the ball, the valve stem, the handle, the second ball valve component, the protective component, the sealing ring and other devices, the advantages of strong sealing ability, double sealing ability, protection of the sealing components inside the valve body and extended service life of the ball valve are achieved.

Description

Double ball valve

Technical Field

The utility model relates to the technical field of ball valves, in particular to a double-ball valve.

Background

The ball valve is a valve with an opening and closing part (ball body) driven by a valve rod and rotating around the axis of the ball valve, can be used for regulating and controlling fluid, is widely applied to industries such as petroleum refining, long-distance pipeline, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel and the like in China, occupies a role in national economy, has a 90-degree rotation action, has a ball body and a circular through hole or a channel passing through the axis, and is extremely widely used;

The common problem of the existing ball valve in the use process is that the sealing performance is general, the sealing problem is very easy to occur after long-time use, the sealing ring arranged on the side part of the ball body is easy to damage and deform after long-time use, so that the sealing of the ball valve is affected, certain loss is naturally generated by the impact of liquid flow when the ball valve is used for a long time, and finally the problem of affecting the sealing performance occurs;

Thus, a double ball valve is specifically proposed.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a double-ball valve which has the advantages of strong sealing capability, double sealing capability, capability of protecting sealing components in a valve body and prolonging the service life of the ball valve, and solves the problems of poor sealing capability and easy damage of the sealing components in the existing ball valve.

The double ball valve comprises a valve body, wherein flange plates are fixedly arranged at the left end and the right end of the valve body, a first ball valve chamber is arranged at the left side of the interior of the valve body, a second ball valve chamber is arranged at the right side of the interior of the valve body, a first ball valve component is arranged in the first ball valve chamber, and a second ball valve component is arranged in the second ball valve chamber;

The first ball valve component comprises a ball body, the ball body is movably mounted in the first ball valve chamber, the protection components are arranged on the left side and the right side of the ball body in the first ball valve chamber, each protection component comprises a protection ring and a semicircular scraping ring, the protection rings are fixedly mounted on the side edges of the inner portion of the first ball valve chamber, and the semicircular scraping rings are provided with two groups of movable mounting inside the protection rings.

Preferably, the top fixed mounting of spheroid has the valve rod, the top left side fixed mounting of valve body has the disk seat, the valve rod runs through valve body and disk seat and extends to the top of disk seat, the upper end surface of valve rod is located the top of disk seat and has cup jointed the handle, the top fixed being located the top fixed mounting of handle of valve rod has the nut.

Preferably, a group of sealing rings are fixedly arranged inside the first ball valve chamber and positioned on the inner sides of the two groups of protection parts.

Preferably, the first ball valve member and the second ball valve member differ in that the first ball valve member is provided with a handle having a higher height than the handle provided with the second ball valve member.

Preferably, the inside of protection ring has seted up flexible room, two sets of the equal movable mounting of semicircle scraping ring is in flexible room, two sets of the equal fixed mounting of bottom of semicircle scraping ring has the spring.

Preferably, the semicircular scraping ring can shield the inner sealing ring due to the supporting force of the spring.

Preferably, the semicircular scraping ring is always kept in a state of being attached to the ball body due to the supporting force of the spring.

Preferably, radian which is consistent with the surface of the sphere is arranged at the joint of the semicircular scraping ring and the sealing ring and the sphere.

Compared with the prior art, the utility model has the beneficial effects that:

1. This two ball valve valves through installation valve body, first ball valve part, spheroid, valve rod, handle, second ball valve part, protection component, sealing ring etc. have reached possess sealing ability reinforce, possess dual sealing ability, can protect the inside sealing component of valve body and prolong ball valve life's advantage.

2. According to the double-ball valve, devices such as the protection part, the protection ring, the telescopic chamber, the semicircular scraping ring and the spring are arranged, particles adhered to the surface of the ball body are scraped through the semicircular scraping ring, so that friction between the ball body and the sealing ring during rotation of the ball body is reduced, and the purpose of prolonging the service life of the device is achieved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the internal planar structure of the valve body of the present utility model;

FIG. 3 is a schematic view of the overall structure of the protective member and the seal ring of the present utility model;

FIG. 4 is a schematic plan view of a seal ring and a shield member according to the present utility model;

Fig. 5 is a schematic view showing the structure of the sphere in the open state and the closed state.

Reference numerals illustrate:

1. Valve body, 11, first ball valve chamber, 12, second ball valve chamber, 2, flange plate, 3, first ball valve component, 31, ball, 32, valve rod, 33, valve seat, 34, handle, 35, nut, 4, second ball valve component, 5, protection component, 51, protection ring, 52, expansion chamber, 53, semicircular scraping ring, 54, spring, 6, sealing ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 5, the present utility model provides a technical solution:

The utility model provides a double ball valve, includes valve body 1, the equal fixed mounting of both ends has ring flange 2 about valve body 1, first ball valve chamber 11 has been seted up in the inside left side of valve body 1, second ball valve chamber 12 has been seted up on the inside right side of valve body 1, the inside of first ball valve chamber 11 is equipped with first ball valve component 3, the inside of second ball valve chamber 12 is equipped with second ball valve component 4, first ball valve component 3 includes spheroid 31, spheroid 31 movable mounting is in the inside of first ball valve chamber 11, the inside of first ball valve chamber 11 is located the left and right sides of spheroid 31 and all is equipped with guard member 5, guard member 5 includes guard ring 51 and semicircle scraping ring 53, guard ring 51 fixed mounting is in the inside of first ball valve chamber 11, the top fixed mounting of spheroid 31 has valve rod 32, the top left side fixed mounting of valve rod 32 runs through 1 and 33 and extends to the inside of first ball valve chamber 3, the top of valve seat 34 is located the fixed mounting of valve seat 34 of valve body 3, the top of valve seat 34 is located the fixed part 34 of valve body 4, the top of valve seat 34 is located the fixed part 34 is located the top of valve seat 34.

By adopting the technical scheme, when the valve body 1 is opened, the first ball valve component 3 and the second ball valve component 4 are opened, and the purpose of opening can be achieved, otherwise, when the valve body 1 is closed, the first ball valve component 3 and the second ball valve component 4 are also required to be closed, when the valve body 1 is opened, the handle 34 at the top of the valve body 1 is firstly rotated, the handle 34 drives the ball 31 in the first ball valve chamber 11 to rotate through the valve rod 32 when the handle 34 rotates, the through hole in the ball 31 is opened, the second ball valve component 4 is opened by repeating the operation, the operation of opening the valve body 1 is completed at the moment, the handle 34 is reversely rotated by closing the valve body 1, and compared with the prior ball valve, the two sides of the ball 31 are provided with the sealing rings 6 in the first ball valve chamber 11, the sealing capability of a part of the device can be improved, meanwhile, through the double-ball design of the first ball valve component 3 and the second ball valve component 4, two balls 31 are arranged in the valve body 1, in the use process, the condition that one group of balls 31 rotate in place can be realized through the other group of balls 31, meanwhile, after the valve body 1 is used for a long time, if the sealing ring 6 arranged on the side part of one group of balls 31 in the valve body 1 is damaged, the other group of balls 31 still can play a role in closing, so that the probability of failure of the device is greatly reduced, meanwhile, the inner part of the first ball valve chamber 11 is positioned at the outer side of the sealing ring 6 and is also provided with a protection component 5, the protection component 5 is positioned at the outer side of the sealing ring 6 and can play a role in protecting the sealing ring 6, the damage caused by direct flushing of internal fluid on the sealing ring 6 in the normal use of the valve body 1 can be prevented, the inner sealing ring 6 can be shielded, and the service life of the device is further prolonged.

Specifically, as shown in fig. 2 to 5, the protection ring 51 is provided with a telescopic chamber 52 inside, two groups of semicircular scraping rings 53 are movably installed in the telescopic chamber 52, springs 54 are fixedly installed at the bottoms of the two groups of semicircular scraping rings 53, the semicircular scraping rings 53 can shield the sealing ring 6 on the inner side due to the supporting force of the springs 54, the semicircular scraping rings 53 always keep the state of being attached to the sphere 31 due to the supporting force of the springs 54, and radians consistent with the surface of the sphere 31 are respectively arranged at the attachment positions of the semicircular scraping rings 53 and the sealing ring 6 and the sphere 31.

By adopting the technical scheme, the ball valve has extremely wide application range, can see in some special material transportation, like the flowable liquid with certain particulate matter, when the ball valve is in this kind of operational environment, spheroid 31 is in the state of closing, its lateral part can be contacted with liquid, because the liquid contains certain particulate matter, thereby lead to the condition that particulate matter adheres to spheroid 31 surface, even conventional liquid material can also contain certain particulate matter in the liquid, when spheroid 31 surface adhesion particulate matter contacts with sealing ring 6 when rotating to close and takes place the friction, more easily cause the loss to sealing ring 6, thereby reduce the life of ball valve, guard element 5 includes protection ring 51 and semicircle scraping ring 53, semicircle scraping ring 53 installs in the flexible room 52 that the protection ring 51 is inside, and install flexible room 52 in the bottom of semicircle scraping ring 53, thereby make semicircle scraping ring 53 be in contact state with spheroid 31 all the time, the contact state of semicircle scraping ring 53 and spheroid 31 can be ensured to the semicircle scraping ring 53, when rotating spheroid 31, thereby can be through the semicircle scraping ring 53 with the contact with semicircle scraping ring 53, thereby the life of the particulate matter that can be reduced when rotating the semicircle scraping ring 31, thereby the life of the device can be reduced.

The working principle is that when the device is in operation, the flange plates 2 at two ends of the valve body 1 are used for installing the device, when the valve body 1 is required to be opened, two groups of handles 34 are required to be rotated respectively, so that two groups of balls 31 in the valve body 1 are in an open state, when the valve body 1 is closed, the two groups of handles 34 are required to be rotated, the interior of the valve body 1 is in a sealed state, the two groups of balls 31 are arranged in the valve body 1 through the arrangement of the first ball valve component 3 and the second ball valve component 4, the normal operation of the device is not affected even if one ball 31 is sealed in normal use, meanwhile, the ball 31 is contacted with the semicircular scraping ring 53 at first in rotation, the semicircular scraping ring 53 can be used for scraping particles adhered to the surface of the ball 31, the friction between the surface particles of the ball 31 and the sealing ring 6 is increased when the surface particles of the ball 31 are more closed, so that the damage to the sealing ring 6 is easily caused, and the service life of the valve body 1 is reduced.

It should be noted that the above embodiments are merely for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solution described in the above embodiments may be modified or some or all of the technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present utility model.

Claims

1. The double-ball valve comprises a valve body (1) and is characterized in that flange plates (2) are fixedly arranged at the left end and the right end of the valve body (1), a first ball valve chamber (11) is formed in the left side of the interior of the valve body (1), a second ball valve chamber (12) is formed in the right side of the interior of the valve body (1), a first ball valve component (3) is arranged in the first ball valve chamber (11), and a second ball valve component (4) is arranged in the second ball valve chamber (12);

The ball valve comprises a ball body (31), wherein the ball body (31) is movably mounted in a first ball valve chamber (11), the first ball valve chamber (11) is internally provided with a protection component (5) on the left side and the right side of the ball body (31), the protection component (5) comprises a protection ring (51) and a semicircular scraping ring (53), the protection ring (51) is fixedly mounted on the side edge of the inner portion of the first ball valve chamber (11), and the semicircular scraping ring (53) is provided with two groups of movable mounting inside the protection ring (51).

2. A double ball valve according to claim 1, wherein a valve rod (32) is fixedly arranged at the top of the ball body (31), a valve seat (33) is fixedly arranged at the left side of the top of the valve body (1), the valve rod (32) penetrates through the valve body (1) and the valve seat (33) and extends to the top of the valve seat (33), a handle (34) is sleeved on the upper end surface of the valve rod (32) above the valve seat (33), and a nut (35) is fixedly arranged at the top of the valve rod (32) above the handle (34).

3. A double ball valve according to claim 1, characterized in that the inside of the first ball valve chamber (11) is provided with a set of sealing rings (6) fixedly arranged on the inner sides of the two sets of protection parts (5).

4. A double ball valve according to claim 1, characterized in that the first ball valve part (3) and the second ball valve part (4) differ in that the first ball valve part (3) is provided with a handle (34) having a higher height than the handle (34) provided with the second ball valve part (4).

5. The double ball valve according to claim 1, wherein the protection ring (51) is internally provided with a telescopic chamber (52), two groups of semicircular scraping rings (53) are movably arranged in the telescopic chamber (52), and springs (54) are fixedly arranged at the bottoms of the two groups of semicircular scraping rings (53).

6. A double ball valve according to claim 5, wherein the semicircular scraper ring (53) shields the inner sealing ring (6) due to the supporting force of the spring (54).

7. The double ball valve according to claim 5, wherein the semicircular scraper ring (53) is always kept in a state of being attached to the ball body (31) due to the supporting force of the spring (54).

8. The double ball valve according to claim 5, wherein radian conforming to the surface of the ball body (31) is arranged at the joint of the semicircular scraping ring (53) and the sealing ring (6) and the ball body (31).