CN212251285U

CN212251285U - Novel valve

Info

Publication number: CN212251285U
Application number: CN202020714450.8U
Authority: CN
Inventors: 孙曾兴; 吴啸; 郝文明; 方品田
Original assignee: Founder Valve Group Co ltd
Current assignee: Founder Valve Group Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-12-29
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a novel valve, which comprises a valve body, runner and upper reaches mounting groove, install on the valve body and wear to establish into the inside valve rod of valve body, the valve rod is located the inside one end of valve body and is equipped with the piece that opens and shuts, the piece that opens and shuts falls into runner and outflow channel with the runner, it forms sealed upper reaches disk seat to be equipped with the cooperation piece that opens and shuts in the upper reaches mounting groove, the upper reaches disk seat is towards opening and shutting the sealed reciprocal sliding of piece and set up in the upper reaches mounting groove, form an airtight drive chamber that is used for driving the upper reaches disk seat to slide between upper reaches mounting groove and the upper reaches disk seat, through first pipeline intercommunication between runner and the airtight drive chamber, the intercommunication has the second pipeline on the outflow channel, be equipped with the switching. The utility model has the advantages of it is following and effect: the utility model discloses an upper reaches disk seat adopts the special disk seat that can break away from the structure, can reduce the moment of torsion of opening and close of valve, prolong the life of valve and reach better sealed effect.

Description

Novel valve

Technical Field

The utility model relates to a valve, in particular to novel valve.

Background

The ball valve product is widely applied to hydraulic system pipelines in various industries such as electric power, petrochemical industry, metallurgy, ocean, petroleum, natural gas, coal gas, pharmacy and the like. The torque of the existing fixed ball valve mainly comprises friction torque of a ball body and a sealing surface of a valve seat, friction torque between an upper valve rod, a lower valve rod and a bearing and the like, the friction torque of the positions is increased along with the increase of the caliber and pressure pound level of the valve, particularly, the high-pressure large-caliber fixed ball valve is often matched with a driving device with very large torque, the automatic control driver is more obvious, the cost of the driver is more than that of the valve, and further, the total cost is greatly increased.

The valve seat of the conventional fixed ball valve provides initial sealing specific pressure through the spring on the back of the valve seat, when the valve is closed and a pipeline enters the valve, the valve seat sealing ring and the ball body are pressed tightly through the pressure difference between the back of the valve seat and the sealing surface to form good sealing, no matter in the process of opening or closing the ball valve, the sealing surface of the valve seat and the spherical surface are always attached tightly, the sealing surface is easy to damage and short in service life in the past for a long time, and the opening and closing torque of the valve is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel valve, this novel valve import end direction's upper reaches disk seat adopts the special disk seat that can break away from the structure, can reduce the moment of torsion of opening and close of valve, prolong the life of valve and reach better sealed effect.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a novel valve, includes the valve body and sets up runner and the upper reaches mounting groove in the valve body, install on the valve body and wear to establish into the inside valve rod of valve body, the valve rod is located the inside one end of valve body and is equipped with the piece of opening and close, the piece of opening and close falls into runner and play runner with the runner, be equipped with the cooperation in the upper reaches mounting groove and open and close the piece and form sealed upper reaches disk seat, the upper reaches disk seat is opened and close the sealed reciprocal sliding of piece and is set up in the upper reaches mounting groove, form an airtight drive chamber that is used for driving the upper reaches disk seat and slides between upper reaches mounting groove and the upper reaches disk seat, through first pipeline intercommunication between runner and the airtight drive chamber, the intercommunication has the second pipeline on the play runner, be equipped with the switching piece that is.

Through adopting above-mentioned technical scheme, when needs valve play sealed effect, earlier switch over a first pipeline of control and switch on, the second pipeline is closed, and the medium pressure that advances in the runner advances airtight drive chamber through first pipeline transmission, and at this moment, thereby the pressure crescent in the airtight drive intracavity drives the upstream disk seat and moves towards the piece of opening and close, makes the sealed face of upstream disk seat and opening and close realize more closely laminating and reach totally sealed to make the disk seat reach better sealed effect.

When the valve needs to be opened, the switching piece is used for controlling the first pipeline to be closed and the second pipeline to be conducted, the medium pressure in the flow inlet channel is transmitted into and out of the flow channel through the second pipeline, at the moment, the medium pressure in the flow inlet channel is gradually reduced, and the upstream valve seat moves towards the direction far away from the opening and closing piece under the pushing action of the pressure difference until the upstream valve seat is completely separated from the opening and closing piece; at the moment, the torque of the valve is reduced to the minimum value and is close to the operating valve in a no-pressure state, the valve can be controlled to be opened and closed only by a small driver, and the valve is free of abrasion in the opening and closing process, so that the service life of the valve is prolonged.

Further setting the following steps: the switching piece is located the valve body outside, the switching piece includes the three-way valve.

Through adopting above-mentioned technical scheme, the three-way valve is with low costs, the stable structure can be fine realize the switching operation between first pipeline and the second pipeline.

Further setting the following steps: the sealing device comprises an upstream sealing ring which is hermetically arranged in an upstream mounting groove, wherein a sealed driving cavity is formed among the upstream sealing ring, an upstream valve seat and the upstream mounting groove, the upstream valve seat and the upstream sealing ring are in sliding fit, and first sealing rings are arranged between the upstream sealing ring and the upstream mounting groove, between the upstream valve seat and the upstream sealing ring and between the upstream valve seat and the upstream mounting groove.

Through adopting above-mentioned technical scheme, the setting of a plurality of first sealing washers is used for forming required airtight drive chamber and realizes that the sealed of upstream valve seat slides.

Further setting the following steps: the valve body is internally provided with a downstream mounting groove close to the outlet flow channel, a downstream valve seat which slides towards the opening and closing piece in a sealing and reciprocating manner and is matched with the opening and closing piece to form sealing is arranged in the downstream mounting groove, and a driving piece which drives the downstream valve seat to abut against the opening and closing piece is arranged between the downstream mounting groove and the downstream valve seat.

Through adopting above-mentioned technical scheme, the low reaches disk seat supports tightly all the time and seals in the opening and closing piece and provides initial pretightning force for the low reaches disk seat under the effect of driving piece, and the moment of torsion of valve can not be increased to this kind of structure, and has further promoted the leakproofness of valve.

Further setting the following steps: and a second sealing ring is arranged between the downstream valve seat and the downstream mounting groove.

Through adopting above-mentioned technical scheme, the setting up of second sealing washer has guaranteed the leakproofness between low reaches disk seat and the low reaches mounting groove both, prevents to leak.

Further setting the following steps: and the upstream valve seat and the downstream valve seat are respectively provided with a second mounting groove, a main sealing ring in sealing fit with the opening and closing piece is arranged in the second mounting groove, and the upstream valve seat and the downstream valve seat are respectively provided with a roller edge for limiting the main sealing ring to be separated from the second mounting groove.

Through adopting above-mentioned technical scheme, soft sealing is realized to main sealing washer cooperation switching element, reaches better sealed effect and prolongs sealed life of face to the fastness of main sealing washer installation is ensured through the setting of piping.

Further setting the following steps: the binding is buckled into the main sealing ring in a bending way.

Through adopting above-mentioned technical scheme, detain into main sealing washer and be used for realizing spacing to main sealing washer.

To sum up, the utility model discloses following beneficial effect has: the utility model discloses an upper reaches disk seat adopts the special disk seat that can break away from the structure, can reduce the moment of torsion of opening and close of valve, prolong the life of valve and reach better sealed effect.

Drawings

FIG. 1 is a sectional view of the embodiment;

FIG. 2 is a cross-sectional partial view of another perspective of the embodiment;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is an enlarged view of a portion B in fig. 2.

In the figure: 1. a valve body; 2. an upstream mounting groove; 3. a valve stem; 4. an opening and closing member; 5. a flow inlet channel; 6. discharging the flow channel; 7. an upstream valve seat; 8. sealing the driving cavity; 9. a first conduit; 10. a second conduit; 11. a switching member; 12. an upstream seal ring; 13. a first seal ring; 14. a downstream mounting groove; 15. a downstream valve seat; 16. a drive member; 17. a second seal ring; 18. a second mounting groove; 19. a primary seal ring; 20. and (6) edge rolling.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 to 4, a novel valve comprises a valve body 1, a flow channel arranged in the valve body 1, an upstream installation groove 2 and a downstream installation groove 14, wherein a valve rod 3 penetrating into the valve body 1 is installed on the valve body 1, an opening and closing part 4 is installed at one end of the valve rod 3 located in the valve body 1, and the opening and closing part 4 is a sphere. The opening and closing piece 4 divides the flow passage into an inlet flow passage 5 and an outlet flow passage 6, the upstream mounting groove 2 is positioned between the inlet flow passage 5 and the opening and closing piece 4, and the downstream mounting groove 14 is positioned between the outlet flow passage 6 and the opening and closing piece 4. An upstream valve seat 7 matched with the opening and closing piece 4 to form a seal is arranged in the upstream mounting groove 2, and a downstream valve seat 15 matched with the opening and closing piece 4 to form a seal is arranged in the downstream mounting groove 14.

An upstream sealing ring 12 is arranged in the upstream mounting groove 2 in a sealing manner, a sealed driving cavity 8 is formed among the upstream sealing ring 12, the upstream valve seat 7 and the upstream mounting groove 2, and the upstream valve seat 7 and the upstream sealing ring 12 are in sealing sliding fit so that the upstream valve seat 7 can slide towards the opening and closing piece 4 in a sealing and reciprocating manner under the driving of the sealed driving cavity 8. First sealing rings 13 are arranged between the upstream sealing ring 12 and the upstream mounting groove 2, between the upstream valve seat 7 and the upstream sealing ring 12 and between the upstream valve seat 7 and the upstream mounting groove 2.

The inlet channel 5 is communicated with the closed driving cavity 8 through a first pipeline 9, the outlet channel 6 is communicated with a second pipeline 10, a switching piece 11 is arranged on the outer side of the valve body 1, and the switching piece 11 is a three-way valve. The first pipeline 9 and the second pipeline 10 are connected through a three-way valve, and the first pipeline 9 and the second pipeline 10 are both located on the outer side of the valve body 1. A driving piece 16 for driving the downstream valve seat 15 to be tightly pressed against the opening and closing piece 4 is arranged between the downstream mounting groove 14 and the downstream valve seat 15, and the driving piece 16 is a spring. A second sealing ring 17 is arranged between the downstream valve seat 15 and the downstream mounting groove 14.

The upstream valve seat 7 and the downstream valve seat 15 are both provided with a second mounting groove 18, a main sealing ring 19 in sealing fit with the opening and closing piece 4 is arranged in the second mounting groove 18, the upstream valve seat 7 and the downstream valve seat 15 are uniformly provided with a binding 20 for limiting the main sealing ring 19 to be separated from the second mounting groove 18, and the binding 20 is bent and buckled into the main sealing ring 19.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a novel valve, includes valve body (1) and sets up runner and upper reaches mounting groove (2) in valve body (1), install on valve body (1) and wear to establish valve rod (3) inside valve body (1), valve rod (3) are located the one end of valve body (1) inside and are equipped with on-off (4), on-off (4) fall into runner (5) and outflow way (6) with the runner, be equipped with in upper reaches mounting groove (2) and cooperate on-off (4) to form sealed upper reaches disk seat (7), its characterized in that: the upper stream valve seat (7) is arranged in the upper stream mounting groove (2) in a sealing reciprocating sliding mode towards the opening and closing piece (4), a sealed driving cavity (8) used for driving the upper stream valve seat (7) to slide is formed between the upper stream mounting groove (2) and the upper stream valve seat (7), the inlet channel (5) is communicated with the sealed driving cavity (8) through a first pipeline (9), the outlet channel (6) is communicated with a second pipeline (10), and a switching piece (11) used for switching the medium flowing direction is arranged between the first pipeline (9) and the second pipeline (10).

2. The novel valve of claim 1, wherein: the switching piece (11) is located on the outer side of the valve body (1), and the switching piece (11) comprises a three-way valve.

3. The novel valve of claim 1, wherein: including seal installation in upstream sealing ring (12) of upstream mounting groove (2), form between upstream sealing ring (12), upstream disk seat (7) and upstream mounting groove (2) the three airtight drive chamber (8), the cooperation that slides between upstream disk seat (7) and upstream sealing ring (12), all be equipped with first sealing washer (13) between upstream sealing ring (12) and upstream mounting groove (2), between upstream disk seat (7) and upstream sealing ring (12), between upstream disk seat (7) and upstream mounting groove (2).

4. The novel valve of claim 1, wherein: the valve is characterized in that a downstream mounting groove (14) is formed in the valve body (1) close to the position of the outlet flow channel (6), a downstream valve seat (15) which slides in a sealing and reciprocating mode towards the opening and closing piece (4) and is matched with the opening and closing piece (4) to form a seal is arranged in the downstream mounting groove (14), and a driving piece (16) which drives the downstream valve seat (15) to abut against the opening and closing piece (4) is arranged between the downstream mounting groove (14) and the downstream valve seat (15).

5. The novel valve of claim 4, wherein: and a second sealing ring (17) is arranged between the downstream valve seat (15) and the downstream mounting groove (14).

6. The novel valve of claim 4, wherein: the valve seat is characterized in that second mounting grooves (18) are formed in the upstream valve seat (7) and the downstream valve seat (15), main sealing rings (19) which are in sealing fit with the opening and closing piece (4) are arranged in the second mounting grooves (18), and rolling edges (20) for limiting the main sealing rings (19) to be separated from the second mounting grooves (18) are arranged on the upstream valve seat (7) and the downstream valve seat (15).

7. The novel valve of claim 6, wherein: the rolled edge (20) is buckled into the main sealing ring (19) in a bending way.