CN217539796U - An electronic valve suitable for natural gas pipelines - Google Patents

Abstract

The utility model provides an electronic valve suitable for natural gas line relates to electronic valve technical field. This electronic valve suitable for natural gas line, including natural gas line, driving motor and valve rod, natural gas line's upper end is provided with the safety warning box, and the inside top of safety warning box is provided with first metal contact, and the lower extreme lateral wall of safety warning box is provided with a cylinder section of thick bamboo, and the inside sliding connection of a cylinder section of thick bamboo has the piston ring. This electronic valve suitable for natural gas line passes through the cylinder section of thick bamboo, the piston ring, rigidity trachea and gasbag, after natural gas leaks, promote the piston ring rebound after the internal pressure of safety warning box increases, the inside gaseous volume inflation after increasing of gasbag, first metal contact and the contact of second metal contact, just transmit the signal of telecommunication to external control ware this moment, sound after external control ware received the signal, remind maintenance personal in time to maintain natural gas line's leakage department, potential safety hazard when having reduced natural gas and leaking.

Description

An electronic valve suitable for natural gas pipelines

technical field

The utility model relates to the technical field of electronic valves, in particular to an electronic valve suitable for natural gas pipelines.

Background technique

Electronic valve belongs to a variety of electric valve and electric regulating valve. The main connection methods of electronic butterfly valve are: flange type and wafer type; the main sealing forms of electronic valve are: rubber seal and metal seal. The electronic valve controls the opening and closing of the valve stem through the power signal.

Electronic valves are often used in fluid transportation and gas transportation, but common electronic valves suitable for natural gas transportation have low safety performance. Because they often need to be opened and closed, the electronic valve stem and the housing are worn due to long-term friction. At the same time, because the pipeline is filled with natural gas, when the electronic valve stem and the oil pipeline casing are worn, the natural gas will leak out from the gap between the electric valve stem and the casing, so that the maintenance staff cannot find it in time, thus cause a safety hazard.

Utility model content

(1) Technical problems solved

Aiming at the deficiencies of the prior art, the utility model provides an electronic valve suitable for natural gas pipelines, which solves the problem that the existing electronic valve suitable for natural gas transportation is low in safety and cannot be discovered by maintenance staff in time after natural gas leakage occurs. , there are security risks.

(2) Technical solutions

In order to achieve the above purpose, the utility model is realized through the following technical solutions: an electronic valve suitable for natural gas pipelines, including natural gas pipelines, driving motors and valve stems, the upper end of the natural gas pipelines is provided with a safety warning box, the safety warning box The inner top of the safety warning box is provided with a first metal contact, the lower end side wall of the safety warning box is provided with a cylinder barrel, the interior of the cylinder barrel is slidably connected with a piston ring, and the top center of the cylinder barrel is fixedly connected with the rigid air pipe, One end of the rigid air pipe away from the cylinder barrel is fixedly connected with the air bag, the air bag is arranged inside the frame, and the interior of the frame is slidably connected with a movable plate, the movable plate is in contact with the upper end of the air bag, and the movable plate is in contact with the upper end of the air bag. The upper end hinge is connected with a first swing rod, the first swing rod is connected with the sliding block pin rod, the sliding block is slidably connected to the inner side of the sliding block, and the upper end of the sliding block is provided with a movable rod, and the movable rod is far away from the sliding block. One end of the block is connected with the pin rod of the second swing rod, the top end of the second swing rod is hingedly connected with a sliding sheet, and the upper end of the sliding sheet is provided with a second metal contact.

Further, a sealing sleeve is provided in the movable connection between the natural gas pipeline and the valve stem, a corrugated gas pipe is arranged on the lower end of the rigid gas pipe, and the corrugated gas pipe is fixedly connected to the outer upper end of the cylinder barrel.

Further, both ends of the movable plate are provided with guide rollers, the upper end of the movable plate is fixedly connected with a U-shaped frame, the upper end of the U-shaped frame is provided with a buffer spring, and the buffer spring is arranged at the bottom of the fixed cylinder. .

Further, a first support spring is fixedly connected to the lower end of the slider, and the first support spring is fixedly connected to the inner lower surface of the frame.

Further, the upper end of the sliding plate is fixedly connected to the horizontal plate, and the lower end of the sliding sheet is provided with a second support spring, and the second support spring is fixedly connected to the bottom of the guide frame.

Further, the center of the horizontal plate is provided with a through hole adapted to the movable rod.

(3) Beneficial effects

The utility model provides an electronic valve suitable for natural gas pipelines. Has the following beneficial effects:

1. The electronic valve suitable for natural gas pipeline passes through the cylinder barrel, piston ring, rigid gas pipe and air bag. When natural gas leakage occurs, the internal pressure of the safety warning box increases and pushes the piston ring to move upward, and the gas inside the air bag expands after the increase in volume. , Through the cooperation of the movable plate, the first swing rod, the second swing rod and the movable rod, the movable rod moves upward and pushes the sliding sheet to move upward, so that the first metal contact is in contact with the second metal contact, and the electrical The signal is transmitted to the external controller, and the external controller emits a sound after receiving the signal, reminding the maintenance personnel to repair the leakage of the natural gas pipeline in time, reducing the potential safety hazard when the natural gas leaks.

2. The electronic valve suitable for natural gas pipelines guides the movement of the movable plate during the upward movement of the movable plate by setting a U-shaped frame, a buffer spring and a fixed cylinder, so that the movement of the movable plate is more stable.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of the cross-sectional view of the utility model;

3 is a schematic diagram of the connecting structure of the movable rod of the present invention;

FIG. 4 is a schematic diagram of the connection structure of the U-shaped frame of the present invention.

In the picture: 1. Natural gas pipeline; 2. Drive motor; 3. Valve stem; 4. Safety warning box; 5. First metal contact; 6. Cylinder barrel; 7. Piston ring; 8. Rigid air pipe; 9. Airbag ; 10, frame; 11, movable plate; 12, first swing rod; 13, slider; 14, slide plate; 15, movable rod; 16, second swing rod; 17, sliding piece; 18, second metal contact ; 19, corrugated air pipe; 20, U-shaped frame; 21, buffer spring; 22, fixed cylinder; 23, first support spring; 24, horizontal plate; 25, second support spring; 26, guide frame.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The embodiment of the present utility model provides an electronic valve suitable for natural gas pipelines, as shown in Figures 1-4, comprising a natural gas pipeline 1, a driving motor 2 and a valve stem 3, and a safety warning box 4 is arranged on the upper end of the natural gas pipeline 1 to ensure safety. The inner top of the warning box 4 is provided with a first metal contact 5, the lower end sidewall of the safety warning box 4 is provided with a cylinder barrel 6, the interior of the cylinder barrel 6 is slidably connected with a piston ring 7, and the upper end of the piston ring 7 is provided with a connecting spring. , in order to support the piston ring 7, the top center of the cylinder barrel 6 is fixedly connected with the rigid gas pipe 8, and the end of the rigid gas pipe 8 away from the cylinder barrel 6 is fixedly connected with the air bag 9, and the air bag 9 is arranged inside the frame 10. When the air bag 9 After the interior is inflated, the volume expansion increases, and the movable plate 11 is pushed up, passing through the cylinder barrel 6, the piston ring 7, the rigid air pipe 8 and the air bag 9. When natural gas leakage occurs, the internal pressure of the safety warning box 4 increases and pushes the piston ring 7. Moving upward, the gas inside the airbag 9 increases and expands in volume. The interior of the frame 10 is slidably connected with a movable plate 11, which is in contact with the upper end of the airbag 9. A swinging rod 12 is connected with a pin rod of the sliding block 13, the sliding block 13 is slidably connected to the inner side of the sliding block 14, the upper end of the sliding block 13 is provided with a movable rod 15, and the end of the movable rod 15 away from the sliding block 13 is pinned with the second swing rod 16 The top end of the second swing rod 16 is hingedly connected with a sliding piece 17, and the upper end of the sliding piece 17 is provided with a second metal contact 18, through the movable plate 11, the first swing rod 12, the second swing rod 16 and the movable rod 15, the movable rod 15 moves upward and pushes the sliding sheet 17 to move upward, so the first metal contact 5 contacts with the second metal contact 18, at this time, the electrical signal is transmitted to the external controller, and the external controller receives the After the signal, a sound is emitted to remind the maintenance personnel to repair the leakage of the natural gas pipeline in time, which reduces the potential safety hazard when the natural gas leaks.

The natural gas pipeline 1 and the valve stem 3 are movably connected with a sealing sleeve, the lower end of the rigid gas pipe 8 is provided with a corrugated gas pipe 19, the corrugated gas pipe 19 is fixedly connected to the outer upper end of the cylinder barrel 6, and both ends of the movable plate 11 are provided with guide rollers , the guide roller is convenient for guiding when the movable plate 11 moves, reducing the resistance when the movable plate 11 moves. The upper end of the movable plate 11 is fixedly connected with a U-shaped frame 20, and the upper end of the U-shaped frame 20 is provided with a buffer spring 21, which is provided with a buffer. The spring 21 is convenient to form buffer protection for the U-shaped frame 20 , and the buffer spring 21 is arranged at the bottom of the fixing cylinder 22 .

The lower end of the slider 13 is fixedly connected with a first support spring 23, the first support spring 23 is fixedly connected to the inner lower surface of the frame 10, the upper end of the slider 14 is fixedly connected with the horizontal plate 24, and the lower end of the sliding sheet 17 is provided with a second support The spring 25 and the second support spring 25 are fixedly connected to the bottom of the guide frame 26 , and the center of the transverse plate 24 is provided with a through hole which is adapted to the movable rod 15 .

Working principle: When the sealing sleeve at the movable connection between the natural gas pipeline 1 and the valve stem 3 is worn out, the natural gas in the natural gas pipeline 1 overflows from the worn place into the safety warning box 4, so the gas at the lower end of the safety warning box 4 After the pressure increases, the piston ring 7 is pushed upward, the spring connecting the piston ring 7 and the cylinder barrel 6 is compressed, and the gas inside the cylinder barrel 6 is compressed into the rigid air tube 8 and rushes into the air bag 9, so the inside of the air bag 9 is compressed. When the gas expands, the air bag 9 pushes up the movable plate 11 after the volume increases, the first swing rod 12 swings upward, the movable rod 15 moves upward, and the movable rod 15 drives the second swing rod 16 to move upward, so the sliding sheet 17 moves along the guide The frame 26 moves upward, the second support spring 25 is stretched, and the sliding sheet 17 drives the second metal contact 18 to move upward, so that the second metal contact 18 contacts the first metal contact 5, and the electrical signal is transmitted at this time. To the external controller, the external controller emits a sound after receiving the signal, reminding the maintenance personnel to repair the leakage of the natural gas pipeline 1 in time, thereby reducing the potential safety hazard when the natural gas leaks.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. An electronic valve suitable for a natural gas pipeline, comprising a natural gas pipeline (1), a drive motor (2) and a valve stem (3), characterized in that: the upper end of the natural gas pipeline (1) is provided with a safety warning box ( 4), the inner top of the safety warning box (4) is provided with a first metal contact (5), the lower end side wall of the safety warning box (4) is provided with a cylinder barrel (6), the cylinder barrel (6) A piston ring (7) is slidably connected to the inside of the cylinder barrel (6), and the top center of the cylinder barrel (6) is fixedly connected with a rigid gas pipe (8), and the end of the rigid gas pipe (8) away from the cylinder barrel (6) is connected with the air bag (9). Fixed connection, the air bag (9) is arranged inside the frame (10), and a movable plate (11) is slidably connected to the inside of the frame (10), and the movable plate (11) is in contact with the upper end of the air bag (9). contact, the upper end of the movable plate (11) is hingedly connected with a first swing rod (12), the first swing rod (12) is connected with the pin rod of the slider (13), and the slider (13) is slidably connected On the inner side of the sliding plate (14), a movable rod (15) is arranged on the upper end of the sliding block (13), and the end of the movable rod (15) away from the sliding block (13) and the pin rod of the second swing rod (16) The top end of the second swing rod (16) is hingedly connected with a sliding sheet (17), and the upper end of the sliding sheet (17) is provided with a second metal contact (18). 2. An electronic valve suitable for natural gas pipelines according to claim 1, characterized in that: a sealing sleeve is provided at the movable connection between the natural gas pipeline (1) and the valve stem (3), and the rigid gas pipe ( The lower end of 8) is provided with a corrugated gas pipe (19), and the corrugated gas pipe (19) is fixedly connected to the outer upper end of the cylinder barrel (6). 3. An electronic valve suitable for natural gas pipelines according to claim 1, characterized in that: both ends of the movable plate (11) are provided with guide rollers, and the upper end of the movable plate (11) is fixedly connected with a A U-shaped frame (20), the upper end of the U-shaped frame (20) is provided with a buffer spring (21), and the buffer spring (21) is arranged at the bottom of the fixing cylinder (22). 4. An electronic valve suitable for natural gas pipelines according to claim 1, characterized in that: the lower end of the slider (13) is fixedly connected with a first support spring (23), and the first support spring (23) It is fixedly attached to the inner lower surface of the frame (10). 5. An electronic valve suitable for natural gas pipelines according to claim 1, characterized in that: the upper end of the sliding plate (14) is fixedly connected to the transverse plate (24), and the lower end of the sliding sheet (17) is provided with There is a second support spring (25), and the second support spring (25) is fixedly connected to the bottom of the guide frame (26). 6. An electronic valve suitable for natural gas pipelines according to claim 5, characterized in that: the center of the transverse plate (24) is provided with a through hole adapted to the movable rod (15).

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