CN208010964U - A kind of V-type ball valve for clearing up residual medium - Google Patents

Abstract

The utility model discloses a V-shaped ball valve capable of cleaning residual medium, which comprises an actuator, a valve body, a valve seat, a ball, an upper valve stem and a lower valve stem. Out of the flow channel, the actuator is connected to the upper end of the upper valve stem, the lower end of the upper valve stem is set in linkage with the ball, the lower valve stem is fixed on the valve seat and set in linkage with the ball, the inner wall of the valve body of the inlet and outlet channels surrounds the lower The valve stem forms a bowl-shaped groove, and the bowl-shaped groove includes an uphill portion with a higher section height and a downhill portion with a lower section height, and the uphill portion and the downhill portion are transitionally connected to form an arc-shaped ramp, and A cleaning channel communicating with the outside of the valve body is provided on the downhill portion, and a sealing member capable of sealingly cooperating with the cleaning channel is provided near the cleaning channel. The utility model has the following advantages and effects: the cleaning passage can be sealed or opened through the sealing member, and the residual medium can be cleaned by using the cleaning passage.

Description

A V-shaped ball valve capable of cleaning residual medium

technical field

The utility model relates to a ball valve, in particular to a V-shaped ball valve capable of cleaning residual medium.

Background technique

V-type ball valve is a kind of rotary ball valve whose core seat is made of metal, or metal-to-PTFE sealing fit. As a shut-off shut-off valve. As an integral valve body without any pipe joints, the V-type ball valve is not affected by the stress of pipes or bolts, and because the valve body does not have any pipe joints, the pressure-resistant shell is not affected by "sudden changes" in pressure. A V-shaped ball, even in the case of small flow or high viscosity media, can also ensure the accuracy of control over the entire measuring range.

Because the V-shaped ball valve has a V-shaped ball structure, after long-term use, various media will gradually accumulate between the inner wall of the valve and the lower valve stem, and the inner wall of the valve and the valve stem are constantly eroded by the medium, which is very easy to fatigue and damage .

Utility model content

The purpose of this utility model is to provide a V-shaped ball valve that can clean the residual medium. By setting an arc-shaped ramp in the bowl-shaped groove, the medium remaining in the bowl-shaped groove can be concentrated to the bottom along the arc-shaped ramp. Slope, and separate the seal set on the cleaning passage, so that the residual medium flows out of the valve body through the cleaning passage.

The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a V-shaped ball valve capable of cleaning residual medium, including an actuator, a valve body, a valve seat, a ball, an upper valve stem and a lower valve stem. There is a flow channel and the flow channel includes an inlet channel and an outlet channel. The actuator is connected to the upper end of the upper valve stem and can drive the upper valve stem to achieve circumferential rotation along the axis of the upper valve stem. The lower end of the upper valve stem is set in linkage with the ball. The circumferential rotation of the upper inlet channel and the outlet channel can be connected or cut off. The lower valve stem is fixed on the valve seat and is set in linkage with the ball. The inner wall of the valve body of the inlet channel and the outlet channel forms a bowl shape around the lower valve stem. groove, the bowl-shaped groove includes an uphill portion and a downhill portion, a transition between the uphill portion and the downhill portion forms an arc-shaped ramp, and the downhill portion is provided with a cleaning valve communicating with the outside of the valve body Channel, the cleaning channel is pierced with a seal that can seal the cleaning channel, the outer wall of the valve is fixedly connected with the peripheral part and the peripheral part is provided with a sliding groove, and the sealing part is slidably arranged on the sliding A groove, and an elastic element that drives the seal to always seal the cleaning passage is provided between the sliding groove and the seal.

By adopting the above technical solution, the actuator can drive the upper valve stem to rotate along the axis of the upper valve stem, and the upper valve stem drives the ball to rotate. When the outer wall of the ball touches the inlet channel, the fluid medium will be blocked by the ball when it enters the inlet channel. Enter the outlet channel; when the outer wall of the sphere does not interfere with the inlet channel, the fluid medium can pass through the inlet channel to reach the outlet channel smoothly. In addition, the upslope and downslope in the bowl-shaped groove will form an arc-shaped ramp. When the outer wall of the sphere touches the inlet channel to isolate the inlet channel from the outlet channel, the residual fluid medium will flow along the valve body. The wall flows to the bowl-shaped groove, and the fine solid medium contained in it will slowly move along the arc-shaped slope due to gravity, and finally concentrate on the downhill part. The advantage is that after separating and cleaning the seal of the channel, the cleaning channel is opened, and the fluid medium remaining in the bowl-shaped groove will flow to the valve body along the arc-shaped ramp and through the cleaning channel, and at the same time, the fluid medium will drive The fine solid media on the slope flow to the valve body together, realizing the cleaning of the fluid media. In addition, when the inlet channel needs to be replaced with another fluid medium, the interference of the residual fluid medium to another fluid medium can be reduced by cleaning the residual fluid medium, and various hidden dangers caused by the mixing of different fluid mediums can be prevented. In addition, the seal is located in the slide groove, and the elastic element in the slide groove applies force to the seal to make it slide along the slide groove. When the seal slides to the cleaning channel and seals the cleaning channel, the fluid The medium cannot flow out of the valve body through the clearing channel. Since the elastic element has been exerting force on the seal, the seal will always seal the cleaning channel. When the cleaning channel needs to be opened, a force opposite to the direction of the elastic element's force can be applied to the seal to make the seal move along the sliding groove. Move in a direction away from the cleaning channel. When moving a certain distance, the seal is separated from the cleaning channel. At this time, the seal cannot seal the cleaning channel. The cleaning channel is open and the fluid medium can flow out of the valve body through the cleaning channel. This has the advantage that both sealing and opening of the cleaning channel can be achieved by the seal.

It is further provided that: the uphill portion is set on a side close to the inlet channel, and the downhill portion is set on a side close to the outflow channel.

By adopting the above technical solution, the fluid medium will flow from the inlet channel to the outlet channel, and the upslope and downslope are set according to the flow direction of the fluid medium, so that the flow direction of the fluid medium is consistent with the guide of the ramp, making the fluid medium more smooth Slippery flow to the downhill part, easy to clean up later.

It is further provided that: a first mounting part with threads is provided in the inlet channel and a filter screen is connected through the first mounting part, and threads adapted to the first mounting part are provided on the periphery of the filter screen.

By adopting the above technical solution, the filter screen is installed in the flow channel through the first installation part, and can be assembled or disassembled through the screw fit between the filter screen and the first installation part. When the fluid medium flows through the inlet channel, it will pass through the filter screen. At this time, the filter screen can filter the fluid medium and block a small amount of solid medium in the fluid medium from the filter screen, thereby reducing the solid medium remaining in the bowl. At the same time, because the residual amount of solid medium is reduced, the number of cleaning can also be reduced.

It is further set as follows: a second mounting part with threads is provided in the outlet channel, and a magnetic adsorption ring is connected through the second mounting part, and the periphery of the adsorption ring is provided with threads adapted to the second mounting part, and The adsorption ring is provided with several stepped grooves.

By adopting the above technical solution, the adsorption ring is arranged in the outlet channel through the second installation part, and can be assembled or disassembled through the screw fit between the adsorption ring and the second installation part. When the fluid medium flows through the adsorption ring, the magnetic solid medium in the fluid medium will be attracted by the same magnetic adsorption ring and stick to the surface of the adsorption ring. In addition, the adsorption ring is provided with several stepped grooves, which can increase the contact area between the surface of the adsorption ring and the fluid medium, and better absorb the magnetic solid medium in the fluid.

In summary, the utility model has the following beneficial effects: by changing the section height of the bowl-shaped groove to form an arc-shaped ramp, the fluid medium can flow along the arc-shaped ramp to the downhill portion of the bowl-shaped groove, and through the separation The seal that fits tightly with the cleaning channel keeps the cleaning channel in an open state, and then the fluid medium can flow to the valve body through the cleaning channel; There is an elastic element that drives the seal to always seal the cleaning channel; thus, the seal can realize the sealing and opening of the cleaning channel; according to the flow direction of the fluid medium, the upslope and the downslope are set to make the flow of the fluid medium Consistent with the guide of the ramp, the flow direction of the fluid medium is smoother; the filter screen is set in the inlet channel, which can filter the fluid medium; the adsorption ring is set in the outlet channel through the second installation part, and the adsorption ring has The magnetism can absorb the magnetic solid medium in the fluid medium, and at the same time, the adsorption ring is provided with several stepped grooves, which can increase the contact area between the surface of the adsorption ring and the fluid medium.

Description of drawings

Fig. 1 is the structural representation of embodiment;

Figure 2 is an enlarged view of part A in Figure 1;

Fig. 3 is an enlarged view of part B in Fig. 1;

Figure 4 is an enlarged view of part C in Figure 1;

Fig. 5 is an enlarged view of part D in Fig. 1 .

In the figure: 1. Actuator; 2. Upper valve stem; 3. Ball; 4. Valve body; 5. Oil-free bearing; 6. Lower valve stem; 7. Adjusting gasket; 8. Valve seat; 11. Sliding seat ;12, O-ring; 13, polygonal spring; 21, seal; 22, cleaning channel; 23, peripheral part; 24, sliding groove; 25, elastic element; 31, the first installation part; 33, the first limiting plate; 41, the second installation part; 42, the adsorption ring; 43, the second limiting plate; 51, the uphill part; 52, the downhill part; 53, the arc ramp; 54, Bowl-shaped groove; 91, the inlet channel; 92, the outlet channel.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Referring to Figures 1 and 2, a V-shaped ball valve capable of cleaning residual media includes an actuator 1, a valve body 4, a valve seat 8, a ball 3, an upper valve stem 2 and a lower valve stem 6, and the valve body 4 is provided with The flow channel and the flow channel include the inlet channel 91 and the outlet channel 92. The actuator 1 is connected to the upper end of the upper valve stem 2 and can drive the upper valve stem 2 to realize circumferential rotation along the axis of the upper valve stem 2. The lower end of the upper valve stem 2 Set in linkage with the ball 3, the circumferential rotation of the ball 3 can make the upper inlet flow channel 91 and the outlet flow channel 92 communicate or cut off, the lower valve stem 6 is fixed on the valve seat 8 and set in linkage with the ball 3, the inlet flow channel 91 The inner wall of the valve body 4 is provided with a sliding seat 11, the sliding seat 11 is slidingly fitted with the inner wall of the valve body 4 and connected with the valve body 4 through a polygonal spring 13, which can provide the sliding seat 11 with the effect of facing the inside of the valve body 4 Force, when the ball 3 seals the flow channel 91, the sliding seat 11 will always resist the ball 3 under the force provided by the polygonal spring 13 to achieve further sealing and prevent internal leakage of the fluid medium.

Preferably, an O-ring 12 is provided between the slide seat 11 and the valve body 4 to play an auxiliary sealing role; the inner wall of the valve body 4 at the inlet channel 91 is processed with a 15° process bevel to prevent the slide seat 11 and the The possibility of damage to the O-ring 12; the oil-free bearing 5 is installed at the connection between the ball 3 and the lower valve stem 6, and the lower valve stem 6 is in a fixed state. The friction force between the bearings 5 is greatly reduced, thereby reducing the valve torque, making the operation of the whole machine more coordinated, and opening and closing easier; an adjusting gasket 7 is arranged between the lower valve stem 6 and the valve seat 8, which can The height of the center of the sphere 3 can be adjusted to improve the sealing performance.

Referring to Fig. 1 and Fig. 3, the inner wall of the valve body 4 of the inlet channel 91 and the outlet channel 92 forms a bowl-shaped groove 54 around the lower valve stem 6, and the bowl-shaped groove 54 includes an uphill portion 51 with a higher cross-sectional height and a higher cross-sectional height. Low downslope 52, upslope 51 is located on the side close to the inlet channel 91, downslope 52 is located on the side close to the outlet 92, and the transition between the upslope 51 and the downslope 52 forms an arc Shaped ramp 53. When the outer wall of the ball 3 collides with the inlet channel 91 so that the inlet channel 91 is isolated from the outlet channel 92, the residual fluid medium will flow to the bowl-shaped groove 54 along the inner wall of the valve body 4, and the fine solid medium contained therein will be Due to the effect of gravity, it will slowly move along the arc-shaped ramp 53 , and finally concentrate on the downhill portion 52 .

In addition, the downhill portion 52 is provided with a cleaning channel 22 communicating with the outside of the valve body 4, and the sealing member 21 is penetrated through the cleaning channel 22. The outer wall of the valve body 4 is fixedly connected with an external part 23, and the external part 23 is provided with The sliding groove 24 is provided with an elastic element 25 which is always in contact with the seal 21. The sealing element 21 penetrates the sliding groove 24 and is subjected to the force of the elastic element 25 to slide against the cleaning channel 22, thereby The sealing of the cleaning channel 22 is achieved.

Specifically, the sealing member 21 is located in the sliding groove 24 and passes through the inside of the valve body 4, and exerts a force on the sealing member 21 through the elastic element 25 in the sliding groove 24 to make it slide along the sliding groove 24. When the sealing The member 21 slides to the downhill portion 52 and interferes with the cleaning channel 22, which can realize the sealing of the cleaning channel 22; when the cleaning channel 22 needs to be opened, a force opposite to the direction of the force of the elastic element 25 can be applied to the sealing member 21 , so that the seal 21 moves along the sliding groove 24 in a direction away from the cleaning passage 22. When moving a certain distance, the seal 21 is separated from the cleaning passage 22. At this time, the seal 21 cannot seal the cleaning passage 22, and the cleaning passage 22 is opened. The fluid medium flows out of the valve body 4 through the cleaning channel 22 .

Preferably, the elastic element 25 is a spring; the sealing surface of the sealing member 21 and the cleaning channel 22 is provided with a sealing gasket, and when the sealing member 21 interferes with the cleaning channel 22 to achieve sealing, the sealing gasket can make the sealing effect better.

Referring to FIG. 4 , the inlet channel 91 is provided with a threaded first mounting portion 31 and is connected with a filter screen 32 through the first mounting portion 31 , and the periphery of the filter screen 32 is provided with threads adapted to the first mounting portion 31 , The filter screen 32 can be fixed on the inner wall of the valve body 4 through the threaded connection with the inner wall of the valve body 4 to play a filtering role.

Preferably, the first mounting part 31 is provided with a first limiting plate 33 on the side close to the ball 3 , and the first limiting plate 33 fits the threaded end of the first mounting part 31 and protrudes toward the center of the valve body 4 out of the first limiting plate 33 . A mounting part 31, when the filter screen 32 is fixed on the first mounting part 31 by threaded connection, it can be limited by the first limit plate 33 to prevent the filter screen 32 from excessively rotating to the threadless place and falling off; the filter screen 32 is provided with Utilizing the rotating handle (not marked in the figure) and the through hole (not marked in the figure) matching the handle, the handle can be conveniently rotated. At the same time, the first installation part 31 supports the connection of multiple filter screens 32, and the The handle of one filter screen 32 is inserted into the through hole of the other filter screen 32 to form a whole, and then they are screwed together and fixed to the first installation part 31 to achieve multiple filtering and better filtering effect.

Referring to FIG. 5 , the outlet channel 92 is provided with a threaded second mounting portion 41 and is connected with a magnetic adsorption ring 42 through the second mounting portion 41 . The thread of the adsorption ring 42 is hollowed out in the middle, and can be fixed to the second installation part 41 through threaded connection, which is used to absorb the magnetic medium in the fluid medium and reduce the impurities in the fluid. In addition, the adsorption ring 42 is provided with several stepped grooves, which can increase the contact area with the fluid medium, and the adsorption effect is better.

Preferably, the second mounting part 41 is provided with a second limiting plate 43 on the side close to the ball 3 , and the second limiting plate 43 fits the threaded end of the second mounting part 41 and protrudes toward the center of the valve body 4 from the second limiting plate 43 . The second installation part 41, when the adsorption ring 42 is fixed to the second installation part 41 through threaded connection, can be limited by the second limiting plate 43 to prevent the adsorption ring 42 from over-rotating to a place without threads and falling off. The design of the threaded connection can be disassembled and cleaned at any time, and then can be fixed to the second installation part 41 through the threaded connection again. In addition, when the adsorption ring 42 loses its magnetism, it can be detached and restored to its magnetism by using a common magnetizer on the market.

This specific embodiment is only an explanation of the utility model, and it is not a limitation of the utility model. After reading this description, those skilled in the art can make modifications to the embodiment without creative contribution according to needs, but as long as it is within the utility model All new claims are protected by patent law.

Claims (4)

1. a kind of V-type ball valve for clearing up residual medium, including actuator (1), valve body (4), valve seat (8), sphere (3), upper valve Bar (2) and lower valve rod (6), it includes into runner (91) and going out runner (92), actuator to be provided with runner and runner in valve body (4) (1) it connects the upper end of upper valve rod (2) and upper valve rod (2) can be driven to be realized along upper valve rod (2) axle center and circumferentially rotate, upper valve rod (2) The linkage of lower end and sphere (3) is arranged, the circumferentially rotating of sphere (3) can make enterprising runner (91) with go out runner (92) be connected to or every Disconnected, lower valve rod (6), which is fixedly installed on valve seat (8) and links with sphere (3), to be arranged, and into runner (91) and goes out the valves of runner (92) Body (4) inner wall forms bowl slot (54) around lower valve rod (6), it is characterised in that：The bowl slot (54) includes upward slope portion (51) And descending portion (52), between the upward slope portion (51) and descending portion (52) transition be arranged to form an arc ramp (53), it is described Descending portion (52) is provided with the cleaning channel (22) being connected to valve body (4) external world, and being equipped in the cleaning channel (22) can be close The sealing element (21) of envelope cleaning channel (22), valve body (4) outer wall are fixedly connected with peripheral hardware portion (23) and the peripheral hardware portion (23) It is inside provided with slippage slot (24), sealing element (21) sliding is set to slippage slot (24), the slippage slot (24) and sealing element (21) elastic element (25) of driving sealing element (21) sealing cleaning channel (22) always is equipped between.

2. a kind of V-type ball valve for clearing up residual medium according to claim 1, it is characterised in that：The upward slope portion (51) it is disposed in proximity to the side into runner (91), descending portion (52) is disposed in proximity to out the side of runner (92).

3. a kind of V-type ball valve for clearing up residual medium according to claim 1, it is characterised in that：It is described into runner (91) it is provided with threaded first mounting portion (31) in and strainer (32), the strainer is connected with by the first mounting portion (31) (32) periphery is provided with the screw thread being adapted to the first mounting portion (31).

4. a kind of V-type ball valve for clearing up residual medium according to claim 1, it is characterised in that：It is described go out runner (92) it is provided with threaded second mounting portion (41) in and magnetic absorption ring is connected with by the second mounting portion (41) (42), described absorption ring (42) periphery is provided with the screw thread being adapted to the second mounting portion (41), and the absorption ring (42) is arranged There are several stepped grooves.