CN214946559U

CN214946559U - Natural gas measurement V type governing valve

Info

Publication number: CN214946559U
Application number: CN202121491557.1U
Authority: CN
Inventors: 唐世号
Original assignee: Jiangsu Tanggong Automatic Control Equipment Co ltd
Current assignee: Jiangsu Tanggong Automatic Control Equipment Co ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2021-11-30
Anticipated expiration: 2031-07-02

Abstract

The utility model relates to the technical field of valves, and a natural gas measurement V type governing valve is disclosed, including valve body, valve rod, pneumatic actuator, locator, V type valve ball and ring flange, the inside movable mounting of valve body has the valve rod, the top fixed mounting of valve body has the top cap, the top fixed mounting of top cap has the pneumatic actuator who is connected with the valve rod transmission, the top fixed mounting of pneumatic actuator has the locator of being connected with the pneumatic actuator transmission, the inside movable mounting of valve body has the auxiliary rod that runs through the valve body bottom, the inside movable mounting of valve body has the V type valve ball of being connected with valve rod and auxiliary rod transmission. This natural gas measurement V type governing valve need not to carry out holistic dismantlement and can take out the case and change or maintain the operation, has effectively saved the time and the energy that maintenance personal operation consumed, when its electric part damages simultaneously, can directly open and close through machinery, accomplishes emergent operation, has higher security.

Description

Natural gas measurement V type governing valve

Technical Field

The utility model relates to the technical field of valves, specifically a natural gas measurement V type governing valve.

Background

In the field of industrial automation process control, a final control element for changing process parameters such as medium flow, pressure, temperature, liquid level and the like by receiving a control signal output by an adjusting control unit and by means of power operation generally comprises an actuating mechanism and a valve, wherein if the adjusting valve is in a straight stroke and an angular stroke according to stroke characteristics; the pneumatic regulating valve, the electric regulating valve and the hydraulic regulating valve can be divided into three types according to the power used by the matched executing mechanism; the regulating valve is divided into three types, namely a linear characteristic, an equal percentage characteristic and a parabolic characteristic according to functions and characteristics, is suitable for media such as air, water, steam, various corrosive media, slurry, oil products and the like, and is usually controlled by a V-shaped regulating valve in a natural gas supply pipeline.

In order to prevent natural gas leakage of a natural gas pipeline, a valve core of the natural gas pipeline needs to be overhauled, maintained or replaced, the valve core of an existing natural gas metering V-shaped regulating valve is difficult to replace and maintain, and the valve core can be removed after an external driving part of the valve core is removed, so that the overhauling efficiency and the valve core replacing efficiency of the regulating valve are affected, and the problem is solved by the natural gas metering V-shaped regulating valve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a natural gas measurement V type governing valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a natural gas metering V-shaped adjusting valve comprises a valve body, a valve rod, a pneumatic actuator, a positioner, a V-shaped valve ball and a flange plate, wherein the valve rod is movably mounted inside the valve body, a top cover is fixedly mounted at the top of the valve body, the pneumatic actuator connected with the valve rod in a transmission manner is fixedly mounted at the top of the top cover, the positioner connected with the pneumatic actuator in a transmission manner is fixedly mounted at the top of the pneumatic actuator, an auxiliary rod penetrating through the bottom of the valve body is movably mounted inside the valve body, the V-shaped valve ball connected with the valve rod and the auxiliary rod in a transmission manner is movably mounted inside the valve body, two connecting pieces which are respectively in contact with the valve rod and the auxiliary rod are fixedly mounted on the right side of the V-shaped valve ball, a valve ball sealing piece is fixedly mounted inside the valve body, and a fixing ring in contact with the valve ball sealing piece is fixedly mounted inside the valve body, and a flange plate is fixedly arranged on the right side of the valve body.

The utility model has the advantages that:

the natural gas metering V-shaped regulating valve is characterized in that in the use process, the positioner detects the rotation angle of a V-shaped valve ball, the pneumatic actuator drives a valve rod and a connecting piece to rotate, so that the rotation angle of the V-shaped valve ball is controlled, the flow regulation of natural gas is completed, in the rotation process of the V-shaped valve ball, an auxiliary rod is driven to rotate by a bottom connecting piece, similarly, when the pneumatic actuator or the positioner is damaged and cannot control the rotation of the valve rod, a tool can be directly used for rotating the auxiliary rod to change the opening and closing state of the regulating valve, when the V-shaped valve ball needs to be replaced or maintained, a fixing ring and a valve ball sealing piece can be directly taken out from the left side of a valve body, the V-shaped valve ball is pushed from the right side by the tool to be taken out from the left side of the valve body, the valve rod and the auxiliary rod are separated from the two connecting pieces when the V-shaped valve ball is taken out, and the V-shaped regulating valve is stable and reasonable in structure, need not to carry out holistic dismantlement and can take out the case and change or maintain the operation, effectively saved and overhauld the time and the energy that maintainer operation consumeed, when its electric part damaged, can directly open and close through machinery simultaneously, accomplish emergency operation, have higher security.

As a further aspect of the present invention: the valve comprises a valve body and a top cover, wherein the valve body is provided with a valve rod, the top cover is provided with a pressing piece, the valve rod is arranged in the valve body, the pressing piece is arranged on the top of the top cover, the pressing piece is in contact with the upper sealing packing and is sleeved with a pressing piece outside the valve rod, and the pressing piece and the top cover are fixedly connected through a connecting ring.

Adopt above-mentioned further scheme's beneficial effect be, the last sealing filler that sets up can effectively seal to the outside of valve rod, and the casting die that sets up can compress tightly last sealing filler, guarantees the compactness of last sealing filler.

As a further aspect of the present invention: the inside of valve body is filled with the lower sealing filler with auxiliary rod external contact, the bottom fixed mounting of valve body has the gland that extends to the inside and contact with lower sealing filler of valve body.

The beneficial effect who adopts above-mentioned further scheme is that, the lower sealing filler that sets up can effectively seal the outside of auxiliary rod, and the gland can compress tightly lower sealing filler, ensures the stability of auxiliary rod simultaneously.

As a further aspect of the present invention: the ring channel has been seted up in the left side of valve body, gu fixed ring is located the inside of ring channel and is a plurality of bolt fixed connection through quantity with the valve body.

Adopt above-mentioned further scheme's beneficial effect is, the ring channel that sets up can supply solid fixed ring to insert to fix through the bolt with the valve body, thereby compress tightly valve ball sealing spare, make valve ball sealing spare hug closely the outside of V type valve ball.

As a further aspect of the present invention: the right side of the fixing ring is provided with a convex ring which is in contact with the valve ball sealing element, and the right side of the valve ball sealing element is matched with the V-shaped valve ball.

Adopt above-mentioned further scheme's beneficial effect be, the bulge loop that sets up can make valve ball sealing member produce small deformation, forms the sealed of hugging closely through deformation and V type valve ball's outside, improves valve ball sealing member's compressive capacity.

As a further aspect of the present invention: two the transmission groove has all been seted up to the back of the body one side of connecting piece, the bottom of valve rod extends to the inside in two transmission grooves respectively with the top of auxiliary rod, the bottom of valve rod is hexagonal prism form setting, the both ends of auxiliary rod all are hexagonal prism form setting, the right side in transmission groove be the opening setting and with the tip looks adaptation of valve rod and auxiliary rod.

Adopt above-mentioned further scheme's beneficial effect be, the transmission groove that sets up can cooperate valve rod and auxiliary rod to drive V type valve ball and rotate, makes valve rod and auxiliary rod can leave two connecting pieces simultaneously to take out V type valve ball from the inside of valve body.

Drawings

FIG. 1 is a schematic structural diagram of a natural gas metering V-shaped regulating valve;

FIG. 2 is an enlarged schematic view of the structure at A in a natural gas metering V-shaped regulating valve;

FIG. 3 is a front view of a natural gas metering V-type regulator valve;

fig. 4 is a schematic structural diagram of an auxiliary rod in a natural gas metering V-shaped regulating valve.

In the figure: 1. a valve body; 2. a valve stem; 3. a top cover; 4. a pneumatic actuator; 5. a positioner; 6. an auxiliary lever; 7. a V-shaped valve ball; 8. a valve ball seal; 9. a fixing ring; 10. a connecting member; 11. a flange plate; 12. a lower seal packing; 13. a gland; 14. upper sealing filler; 15. pressing parts; 16. and (7) connecting rings.

Detailed Description

Referring to fig. 1 to 4, in an embodiment of the present invention, a natural gas metering V-shaped regulating valve includes a valve body 1, a valve rod 2, a pneumatic actuator 4, a positioner 5, a V-shaped valve ball 7 and a flange 11, the valve rod 2 is movably installed inside the valve body 1, a top cover 3 is fixedly installed on the top of the valve body 1, the pneumatic actuator 4 in transmission connection with the valve rod 2 is fixedly installed on the top of the top cover 3, the positioner 5 in transmission connection with the pneumatic actuator 4 is fixedly installed on the top of the pneumatic actuator 4, an auxiliary rod 6 penetrating through the bottom of the valve body 1 is movably installed inside the valve body 1, the V-shaped valve ball 7 in transmission connection with the valve rod 2 and the auxiliary rod 6 is movably installed inside the valve body 1, two connecting pieces 10 in contact with the valve rod 2 and the auxiliary rod 6 respectively are fixedly installed on the right side of the V-shaped valve ball 7, a valve ball sealing piece 8 is fixedly installed inside the valve body 1, the inside of the valve body 1 is fixedly provided with a fixed ring 9 which is contacted with a valve ball sealing element 8, the right side of the valve body 1 is fixedly provided with a flange plate 11, the inside of the valve body 1 is filled with an upper sealing filler 14 which extends to the inside of the top cover 3 and is positioned at the outside of the valve rod 2, the top of the top cover 3 is inserted with a pressing piece 15 which is contacted with the upper sealing filler 14 and is sleeved with the outside of the valve rod 2, the pressing piece 15 is fixedly connected with the top cover 3 through a connecting ring 16, the arranged upper sealing filler 14 can effectively seal the outside of the valve rod 2, the arranged pressing piece 15 can compress the upper sealing filler 14 to ensure the tightness of the upper sealing filler 14, the inside of the valve body 1 is filled with a lower sealing filler 12 which is contacted with the outside of the auxiliary rod 6, the bottom of the valve body 1 is fixedly provided with a gland 13 which extends to the inside of the valve body 1 and is contacted with the lower sealing filler 12, and the arranged lower sealing filler 12 can effectively seal the outside of the auxiliary rod 6, the gland 13 can compress the lower sealing packing 12, simultaneously, the stability of the auxiliary rod 6 is ensured, the left side of the valve body 1 is provided with an annular groove, the fixing ring 9 is positioned in the annular groove and fixedly connected with the valve body 1 through a plurality of bolts, the annular groove is provided for the fixing ring 9 to be inserted and fixed with the valve body 1 through bolts, thereby compressing the valve ball sealing element 8, so that the valve ball sealing element 8 is tightly attached to the outer part of the V-shaped valve ball 7, the right side of the fixing ring 9 is provided with a convex ring contacted with the valve ball sealing element 8, the right side of the valve ball sealing element 8 is matched with the V-shaped valve ball 7, the arranged convex ring can make the valve ball sealing element 8 generate micro deformation, the sealing tightly attached to the outer part of the V-shaped valve ball 7 is formed through deformation, the pressure resistance of the valve ball sealing element 8 is improved, the reverse side of the two connecting pieces 10 is provided with transmission grooves, the bottom of the valve rod 2 and the top of the auxiliary rod 6 respectively extend to the inner parts of the two transmission grooves, the bottom of valve rod 2 is the setting of hexagonal prism form, and the both ends of auxiliary rod 6 all are the setting of hexagonal prism form, and the right side in transmission groove is the opening setting and with valve rod 2 and auxiliary rod 6's tip looks adaptation, the transmission groove of setting can cooperate valve rod 2 and auxiliary rod 6 to drive V type valve ball 7 and rotate, makes valve rod 2 and auxiliary rod 6 can leave two connecting pieces 10 simultaneously to take out V type valve ball 7 from the inside of valve body 1.

The utility model discloses a theory of operation is:

the first step is as follows: the positioner 5 detects the rotation angle of the V-shaped valve ball 7, and the pneumatic actuator 4 drives the valve rod 2 and the connecting piece 10 to rotate, so that the rotation angle of the V-shaped valve ball 7 is controlled, the flow regulation of natural gas is completed, in the rotation process of the V-shaped valve ball 7, the auxiliary rod 6 is driven by the bottom connecting piece 10 to rotate, and similarly, when the pneumatic actuator 4 or the positioner 5 is damaged and cannot control the rotation of the valve rod 2, a tool can be directly used for rotating the auxiliary rod 6 to change the opening and closing state of the regulating valve;

the second step is that: when the V-shaped valve ball 7 needs to be replaced or maintained, the fixing ring 9 and the valve ball sealing member 8 can be directly taken out from the left side of the valve body 1, the V-shaped valve ball 7 is pushed from the right side by using a tool to be taken out from the left side of the valve body 1, and when the V-shaped valve ball 7 is taken out, the valve rod 2 and the auxiliary rod 6 are separated from the two connecting pieces 10.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a natural gas measurement V type governing valve, includes valve body (1), valve rod (2), pneumatic actuator (4), locator (5), V type valve ball (7) and ring flange (11), its characterized in that, the inside movable mounting of valve body (1) has valve rod (2), the top fixed mounting of valve body (1) has top cap (3), the top fixed mounting of top cap (3) has pneumatic actuator (4) of being connected with valve rod (2) transmission, the top fixed mounting of pneumatic actuator (4) has locator (5) of being connected with pneumatic actuator (4) transmission, the inside movable mounting of valve body (1) has auxiliary rod (6) of running through valve body (1) bottom, the inside movable mounting of valve body (1) has V type valve ball (7) of being connected with valve rod (2) and auxiliary rod (6) transmission, the right side fixed mounting of V type valve ball (7) has quantity for two and respectively with valve rod (2) and auxiliary rod (6), the right side fixed mounting of V type valve ball (7) has Connecting piece (10) of pole (6) contact, the inside fixed mounting of valve body (1) has valve ball sealing member (8), the inside fixed mounting of valve body (1) has solid fixed ring (9) with valve ball sealing member (8) contact, the right side fixed mounting of valve body (1) has ring flange (11).

2. The V-shaped regulating valve for metering natural gas according to claim 1, characterized in that the interior of the valve body (1) is filled with an upper sealing packing (14) which extends into the top cover (3) and is positioned outside the valve rod (2), a pressing piece (15) which is in contact with the upper sealing packing (14) and is sleeved outside the valve rod (2) is inserted into the top of the top cover (3), and the pressing piece (15) and the top cover (3) are fixedly connected through a connecting ring (16).

3. A natural gas metering V-shaped regulating valve according to claim 1, characterized in that the interior of the valve body (1) is filled with a lower sealing filler (12) which is in contact with the outside of the auxiliary rod (6), and the bottom of the valve body (1) is fixedly provided with a gland (13) which extends to the interior of the valve body (1) and is in contact with the lower sealing filler (12).

4. The natural gas metering V-shaped regulating valve according to claim 1, wherein an annular groove is formed in the left side of the valve body (1), and the fixing ring (9) is located inside the annular groove and fixedly connected with the valve body (1) through a plurality of bolts.

5. A natural gas metering V-shaped regulating valve according to claim 1, characterized in that the right side of the fixing ring (9) is provided with a convex ring which is contacted with a valve ball sealing element (8), and the right side of the valve ball sealing element (8) is matched with a V-shaped valve ball (7).

6. The V-shaped natural gas metering regulating valve as claimed in claim 1, wherein transmission grooves are formed in opposite sides of the two connecting pieces (10), and the bottom of the valve rod (2) and the top of the auxiliary rod (6) extend into the two transmission grooves respectively.

7. A V-shaped regulating valve for metering natural gas according to claim 6, characterized in that the bottom end of the valve rod (2) is hexagonal prism-shaped, the two ends of the auxiliary rod (6) are hexagonal prism-shaped, and the right side of the transmission groove is open and matched with the ends of the valve rod (2) and the auxiliary rod (6).