CN217272762U

CN217272762U - Pipeline blowout stop valve

Info

Publication number: CN217272762U
Application number: CN202220388995.3U
Authority: CN
Inventors: 代永生; 代雪芹; 张洪博
Original assignee: Chongqing Zongxing Machinery Co ltd
Current assignee: Chongqing Zongxing Machinery Co ltd
Priority date: 2022-02-25
Filing date: 2022-02-25
Publication date: 2022-08-23
Anticipated expiration: 2032-02-25

Abstract

The utility model provides a pipeline blowout stop valve, including main support valve body, fixed valve gap, support frame, valve rod, rotatory hand wheel, flange, main path connecting pipe, the buffer interval, injection pipe and supplementary path, wherein: the valve rod is embedded in the main supporting valve body, the fixed valve cover and the supporting frame; the rotatory hand wheel passes through the bolt and installs at the top of valve rod, and main path connecting pipe passes through flange and installs the one end at main support valve body, and this buffering interval passes through the bolt and installs the one end at main path connecting pipe. The utility model discloses main path connecting pipe, the setting of buffer interval and auxiliary path, the bulk strength is high, can form the pressure that many routes slowed down the valve, and liquid flow will directly not strike on the valve, can not cause the valve to damage.

Description

Pipeline blowout stop valve

Technical Field

The utility model belongs to the technical field of the stop valve, especially, relate to a pipeline blowout stop valve.

Background

The shut-off valve is also called a shut-off valve, and belongs to a forced sealing type valve, so when the valve is closed, pressure must be applied to the valve clack to force the sealing surface not to leak. When the medium enters the valve from the lower part of the valve clack, the resistance to be overcome by the operating force is the friction force between the valve rod and the packing and the thrust generated by the pressure of the medium, the force for closing the valve is larger than the force for opening the valve, so the diameter of the valve rod is larger, otherwise the failure of the valve rod bending can occur. The connection mode is divided into three types: flange connection, screw thread connection and welding connection. After the self-sealing valve appears, the medium flow direction of the stop valve is changed to enter the valve cavity from the upper part of the valve clack, at this time, under the action of medium pressure, the force for closing the valve is small, the force for opening the valve is large, and the diameter of the valve rod can be correspondingly reduced. At the same time, this type of valve is also relatively tight under the action of the medium. The valve of China has been specified in the 'three-transformation and three-transformation' way, and the flow direction of the stop valve is uniformly from top to bottom. When the stop valve is opened, the opening height of the valve clack is 25% -30% of the nominal diameter, the flow reaches the maximum, and the valve reaches the full-open position. Therefore, the full-open position of the stop valve is determined by the stroke of the valve clack, but the existing stop valve still has poor integral strength, cannot form a plurality of paths to reduce the pressure of the valve, and liquid flows to directly impact on the valve, so that the problem of valve damage is caused.

Therefore, the invention of the pipeline blowout stop valve is very necessary.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a pipeline blowout stop valve to it is poor still to have the bulk strength to solve current stop valve, can not form the pressure that many routes slowed down the valve, and liquid flow will directly strike on the valve, causes the problem of valve damage. The utility model provides a pipeline blowout stop valve, includes main support valve body, fixed valve gap, support frame, valve rod, rotatory hand wheel, flange, main path connecting pipe, between the buffering section, injection pipe and auxiliary path, wherein: the valve rod is embedded in the main supporting valve body, the fixed valve cover and the supporting frame; the rotary hand wheel is arranged at the top of the valve rod through a bolt, the main path connecting pipe is arranged at one end of the main supporting valve body through a connecting flange, and the buffer section is arranged at one end of the main path connecting pipe through a bolt; the injection pipe is installed on the surface of the buffer section by a bolt, and the auxiliary path is installed at one side of the main path connection pipe by a bolt.

The main path connecting pipe comprises a main body supporting pipe, an outer side protective shell, an inner protective layer and a pressure-resistant outer skeleton, wherein the outer side protective shell is bonded on the outer side of the main body supporting pipe, and the inner protective layer is bonded on the inner side of the main body supporting pipe; the outer compression-resistant framework is wrapped on the outer side of the outer protective shell.

The buffer area comprises an outer shell, a buffer plate, a sealing plate, an injection port and an output port, the buffer plate is installed inside the outer shell through a bolt, and the sealing plate is installed on the surface of the outer shell through the bolt; the injection port is located below the front side of the sealing plate, and the output port is located above the rear side of the outer shell.

The main path connecting pipe adopts a steel metal hollow pipe, an internal protective layer inside the main path connecting pipe adopts a high-strength PVC plastic pipe with scratches on the inner surface, a pressure-resistant outer framework inside the main path connecting pipe adopts a spiral carbon steel metal binding frame, so that when liquid inside the main path connecting pipe flows at a high speed, the liquid flowing at a high speed can be prevented from damaging the main path connecting pipe, the pressure-resistant outer framework is arranged, the pressure received by the main path connecting pipe from the inside or the outside of the main path connecting pipe can be prevented, and the pressure is prevented from damaging the main path connecting pipe.

The buffer interval adopts a rectangular steel metal box, the buffer plates in the buffer interval adopt a plurality of parallel steel metal plates, and the buffer plates in the buffer interval are inclined upwards; the buffer plate is characterized in that gaps are reserved between the two sides of the buffer plate inside the buffer area and the outer shell and the sealing plate, so that liquid flowing into the buffer area from the interior of the injection pipe can be prevented from directly impacting the valve, the valve is damaged, the buffer area can enable the liquid flowing at a high speed to be quickly decelerated, the liquid flows through the valve slowly, and the valve is prevented from being damaged.

The structure at inside structure of auxiliary path and main path connecting pipe rear is identical, and the structure at inside structure of auxiliary path and main path connecting pipe rear is on the coplanar to be parallel to each other, be favorable to making and get into an inside rivers of buffer interval, form two sets of outflows, with the pressure dispersion 1/2 that falls of main path connecting pipe rear valve received, can accelerate the flow rate of liquid, also can protect the valve.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses the setting of main path connecting pipe is favorable to when its inside liquid flows at a high speed, can prevent that the liquid that flows at a high speed from damaging the main path connecting pipe, and the setting of resistance to compression exoskeleton can prevent that the main path connecting pipe from its inside or from its outside pressure of receiving, prevents that pressure from causing the damage to the main path connecting pipe.

2. The utility model discloses the setting between the buffering interval is favorable to preventing from the direct striking of the liquid that flows in from the filling tube inside on the valve, causes the valve to appear damaging, and the buffering interval can make the quick speed reduction of the liquid of high-speed flow, and the valve of slowly flowing through prevents that the valve from appearing damaging.

3. The utility model discloses the setting in auxiliary path is favorable to making the inside one rivers of entering buffer interval, forms two sets of outwards flows, and 1/2 is dispersed to the pressure that receives main path connecting pipe rear valve, can accelerate the flow rate of liquid, also can protect the valve.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the main path connecting pipe of the present invention.

Fig. 3 is a schematic structural diagram of the buffer area according to the present invention.

In the figure:

the main supporting valve body 1, the fixed valve cover 2, the supporting frame 3, the valve rod 4, the rotating hand wheel 5, the connecting flange 6, the main path connecting pipe 7, the main supporting pipe 71, the outer protecting shell 72, the inner protecting layer 73, the pressure-resistant outer framework 74, the buffer section 8, the outer shell 81, the buffer plate 82, the sealing plate 83, the injection port 84, the injection pipe 9 of the output port 85 and the auxiliary path 10.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

As shown in figures 1 to 3.

The utility model provides a pair of pipeline blowout stop valve, including main support valve body 1, fixed valve gap 2, support frame 3, valve rod 4, rotatory hand wheel 5, flange 6, main path connecting pipe 7, buffer interval 8, injection pipe 9 and supplementary path 10, wherein: the fixed valve cover 2 is arranged above the main supporting valve body 1 through bolts, the supporting frame 3 is arranged above the fixed valve cover 2 through bolts, and the valve rod 4 is embedded in the main supporting valve body 1, the fixed valve cover 2 and the supporting frame 3; the rotary hand wheel 5 is installed at the top of the valve rod 4 through a bolt, a main path connecting pipe 7 is installed at one end of the main supporting valve body 1 through a connecting flange 6, and the buffer section 8 is installed at one end of the main path connecting pipe 7 through a bolt; the injection pipe 9 is installed on the surface of the buffer section 8 by a bolt, and the auxiliary path 10 is installed on one side of the main path connection pipe 7 by a bolt.

The main path connecting pipe 7 includes a main body supporting pipe 71, an outer protective shell 72, an inner protective layer 73 and a pressure-resistant exoskeleton 74, the outer protective shell 72 is bonded to the outer side of the main body supporting pipe 71, and the inner protective layer 73 is bonded to the inner side of the main body supporting pipe 71; the compression-resistant exoskeleton 74 wraps the outside of the outside protective shell 72.

The buffer space 8 includes an outer case 81, a buffer plate 82, a sealing plate 83, an inlet 84 and an outlet 85, the buffer plate 82 is mounted inside the outer case 81 by bolts, and the sealing plate 83 is mounted on the surface of the outer case 81 by bolts; the inlet 84 is located below the front side of the sealing plate 83, and the outlet 85 is located above the rear side of the outer case 81.

The utility model provides a pipeline blowout stop valve, which mainly comprises a supporting valve body 1, a fixed valve cover 2, a supporting frame 3, a valve rod 4 and a rotating hand wheel 5; the connecting flange 6 is used for connecting a pipeline; the main path connecting pipe 7 is made of a steel metal hollow pipe, the internal protective layer 73 in the main path connecting pipe 7 is made of a high-strength PVC plastic pipe with scratches on the inner surface, the pressure-resistant outer framework 74 in the main path connecting pipe 7 is made of a spiral carbon steel metal bounding frame, so that when liquid in the main path connecting pipe 7 flows at a high speed, the liquid flowing at the high speed can be prevented from damaging the main path connecting pipe 7, and the pressure-resistant outer framework 74 is arranged, so that the pressure received by the main path connecting pipe 7 from the inside or the outside of the main path connecting pipe 7 can be prevented, and the main path connecting pipe 7 is prevented from being damaged by the pressure; the buffer interval 8 adopts a rectangular steel metal box, the buffer plates 82 in the buffer interval 8 adopt a plurality of parallel steel metal plates, and the buffer plates 82 in the buffer interval 8 are inclined upwards; gaps are reserved between two sides of the buffer plate 82 in the buffer area 8 and between the outer shell 81 and the sealing plate 83, so that liquid flowing from the interior of the injection pipe 9 is prevented from directly impacting on the valve to cause damage to the valve, the buffer area 8 can enable the liquid flowing at a high speed to be quickly decelerated and slowly flow through the valve to prevent the valve from being damaged; the structure inside the auxiliary path 10 is completely consistent with the structure behind the main path connecting pipe 7, the structure inside the auxiliary path 10 and the structure behind the main path connecting pipe 7 are on the same plane and are parallel to each other, so that a flow of water entering the buffer area 8 is facilitated, two sets of water flows are formed, the pressure received by the valve behind the main path connecting pipe 7 is dispersed, 1/2 is removed, the flow rate of liquid can be accelerated, and the valve can be protected.

Utilize technical scheme, or technical staff in the field is in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses a protection scope.

Claims

1. Pipeline blowout stop valve, its characterized in that: including main support valve body (1), fixed valve gap (2), support frame (3), valve rod (4), rotatory hand wheel (5), flange (6), main route connecting pipe (7), between the buffer interval (8), injection pipe (9) and auxiliary path (10), wherein: the fixed valve cover (2) is arranged above the main supporting valve body (1) through bolts, the supporting frame (3) is arranged above the fixed valve cover (2) through bolts, and the valve rod (4) is embedded in the main supporting valve body (1), the fixed valve cover (2) and the supporting frame (3); the rotary hand wheel (5) is installed at the top of the valve rod (4) through a bolt, the main path connecting pipe (7) is installed at one end of the main supporting valve body (1) through a connecting flange (6), and the buffer section (8) is installed at one end of the main path connecting pipe (7) through a bolt; the injection pipe (9) is installed on the surface of the buffer section (8) by bolts, and the auxiliary path (10) is installed on one side of the main path connection pipe (7) by bolts.

2. The pipeline blowout stop valve of claim 1, wherein: the main path connecting pipe (7) comprises a main body supporting pipe (71), an outer side protective shell (72), an inner protective layer (73) and a pressure-resistant outer skeleton (74), the outer side protective shell (72) is bonded on the outer side of the main body supporting pipe (71), and the inner protective layer (73) is bonded on the inner side of the main body supporting pipe (71); the compression-resistant outer framework (74) is wrapped on the outer side of the outer protective shell (72).

3. The pipeline blowout stop valve of claim 1, wherein: the buffer section (8) comprises an outer shell (81), a buffer plate (82), a sealing plate (83), an injection port (84) and an output port (85), the buffer plate (82) is installed inside the outer shell (81) through bolts, and the sealing plate (83) is installed on the surface of the outer shell (81) through bolts; the inlet (84) is located below the front side of the sealing plate (83), and the outlet (85) is located above the rear side of the outer housing (81).

4. The pipeline blowout stop valve of claim 1, wherein: the main path connecting pipe (7) is a steel metal hollow pipe, an internal protective layer (73) in the main path connecting pipe (7) is a high-strength PVC plastic pipe with scratches on the inner surface, and a pressure-resistant outer skeleton (74) in the main path connecting pipe (7) is a spiral carbon steel metal bounding frame.

5. The pipeline blowout stop valve of claim 1, wherein: the buffer area (8) adopts a rectangular steel metal box, the buffer plates (82) in the buffer area (8) adopt a plurality of parallel steel metal plates, and the buffer plates (82) in the buffer area (8) are inclined upwards; gaps are reserved between two sides of the buffer plate (82) in the buffer section (8) and the outer shell (81) and the sealing plate (83).

6. The pipeline blowout stop valve of claim 1, wherein: the structure in the auxiliary path (10) is completely consistent with the structure behind the main path connecting pipe (7), and the structure in the auxiliary path (10) is on the same plane as the structure behind the main path connecting pipe (7) and is parallel to the structure.