A pressure injection device for gas pipelines

Abstract

This utility model belongs to the technical field of gas equipment, and relates to a pressure injection device for gas pipelines. It includes a gas pipeline body, a safety valve fixedly connected to the middle of the gas pipeline body, a signal transmission line fixedly connected to the bottom of the safety valve, a connecting pipe fixedly connected to the middle of the gas pipeline body, and the other side of the signal transmission line fixedly connected to the connecting pipe. A display housing is fixedly connected to the end of the connecting pipe, a warning component is provided in the middle of the display housing, a scale line is fixedly connected to the middle of the display housing, and a sliding groove is formed in the middle of the sliding groove, with a trigger component located in the middle of the groove. This utility model, through the signal transmission function of the signal transmission line, can be linked with the safety valve, thereby allowing the safety valve to automatically cut off the gas supply. Furthermore, when the internal pressure of the pipeline reaches a predetermined threshold, an alarm can quickly alert the operator to take timely measures. The automatic cutting off of the gas supply by the safety valve further ensures safety.

Description

Technical Field

[0001] This utility model belongs to the field of gas equipment technology and relates to a gas pipeline pressure injection device. Background Technology

[0002] Natural gas is a mixed gaseous fuel with methane as the main component. It is generally transported through pipelines, liquefaction, or compression and is widely used in residential life, industrial production, and power generation. Currently, a pipeline network, storage and transportation facilities, and liquefaction processing system have been formed nationwide to support large-scale supply.

[0003] When transporting natural gas, it is necessary to use a compressor to mechanically compress the natural gas, thereby increasing the thermal motion speed and pressure of the gas molecules, which can then convert the low-pressure gas into a high-pressure state to meet the needs of long-distance transportation.

[0004] During pressurization, due to the high pressure and flammable and explosive nature of the gas pipeline, an explosion can easily be triggered if the pressure inside the pipeline exceeds its capacity or if gas leakage occurs due to improper operation, posing a certain safety risk. Utility Model Content

[0005] The technical problem this invention aims to solve is that, during pressurization, due to the high pressure and flammable and explosive characteristics of the gas pipeline, an explosion can easily be triggered if the pressure inside the pipeline exceeds its capacity or if gas leakage occurs due to improper operation, posing a certain safety risk.

[0006] The present invention discloses a gas pipeline pressure injection device, comprising a gas pipeline body, a safety valve fixedly connected to the middle of the gas pipeline body, a signal transmission line fixedly connected to the bottom of the safety valve, a connecting pipe fixedly connected to the middle of the gas pipeline body, the other side of the signal transmission line being fixedly connected to the connecting pipe, a display housing fixedly connected to the end of the connecting pipe, a warning component provided in the middle of the display housing, a scale line fixedly connected in the middle of the display housing, a groove provided in the middle of the display housing, and a trigger component provided in the middle of the groove.

[0007] The warning component includes a rotating shaft, a pointer, a groove, a connecting post, a wire, a power supply box, and a buzzer. The rotating shaft is rotatably connected to the middle of the display case, and the pointer is fixedly connected to the end of the rotating shaft. A groove is formed in the middle of the display case, and the power supply box is fixedly connected to the middle of the groove. A buzzer is fixedly connected to the middle of the display case. The power supply boxes are connected to each other through wires. One end of the wire is connected to a trigger component, and the other end of the wire is fixedly connected to the rotating shaft.

[0008] The triggering component includes an arc-shaped conductive sheet and a connecting rod. The arc-shaped conductive sheet is fixedly connected to the middle of the groove, and the connecting rod is slidably connected inside the groove. A limit component is provided at the end of the connecting rod.

[0009] The limiting component includes a limiting block and a spring rod. Multiple sets of limiting blocks are fixedly connected to the middle of the connecting rod, and a spring rod is fixedly connected to the middle of each set of limiting blocks. The spring rod is slidably connected to the slide groove.

[0010] The connecting rod has a straight groove in the middle, a small spring is fixedly connected to the middle of the straight groove, and a guide iron is fixedly connected to the end of the small spring. The guide iron is slidably connected to the connecting rod.

[0011] The pointer has a slot in the middle, and the slot is slidably connected to the connecting rod.

[0012] A rubber pad is fixed to the end of the connecting rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the signal transmission function of the signal transmission line can be linked with the safety valve, so that the safety valve can automatically cut off the gas supply. Furthermore, when the internal pressure of the pipeline reaches a predetermined threshold, the alarm can quickly remind the operator to take timely measures. The automatic cutting off of the gas supply by the safety valve can further ensure safety.

[0014] The buzzer is connected to the power supply box via a wire, allowing the buzzer to sound. When the gas concentration inside the gas pipeline reaches a set threshold, the buzzer can quickly alert the operator, thereby reducing the occurrence of dangerous situations during operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the groove structure in this utility model.

[0017] Figure 3 This is a schematic diagram of the arc-shaped conductive sheet in this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the small spring in this utility model.

[0019] In the diagram: 1. Gas pipeline body; 2. Safety valve; 3. Signal transmission line; 4. Connecting pipe; 5. Display case; 6. Rotating shaft; 7. Pointer; 9. Groove; 10. Connecting post; 11. Wire; 12. Power supply box; 13. Buzzer; 14. Scale line; 15. Slide groove; 16. Arc-shaped conductive sheet; 17. Connecting rod; 18. Limiting block; 19. Spring rod; 20. Straight groove; 21. Small spring; 22. Guide iron; 23. Slot; 24. Rubber pad. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] Example 1: As Figures 1-4 As shown, the system includes a gas pipeline body 1, a safety valve 2 fixedly connected to the middle of the gas pipeline body 1, a signal transmission line 3 fixedly connected to the bottom of the safety valve 2, a connecting pipe 4 fixedly connected to the middle of the gas pipeline body 1, the other side of the signal transmission line 3 being fixedly connected to the connecting pipe 4, a display housing 5 fixedly connected to the end of the connecting pipe 4, a warning component provided in the middle of the display housing 5, a scale line 14 fixedly connected to the middle of the display housing 5, a slide groove 15 provided in the middle of the display housing 5, and a trigger component provided in the middle of the slide groove 15.

[0024] When pressurizing the inside of the gas pipeline body 1, an alarm component can be used to detect the pressure inside the gas pipeline body 1. When the pressure inside the gas pipeline body 1 reaches a predetermined value, the trigger component and the alarm component come into contact with each other, thereby triggering an alarm. Then, through the signal transmission function of the signal transmission line 3, it can be linked with the safety valve 2, thereby automatically cutting off the gas supply using the safety valve 2. When the pressure inside the pipeline reaches a predetermined threshold, the alarm can quickly remind the operator to take timely measures. By automatically cutting off the gas supply through the safety valve 2, safety can be further ensured.

[0025] The warning assembly includes a rotating shaft 6, a pointer 7, a groove 9, a connecting post 10, a wire 11, a power supply box 12, and a buzzer 13. The rotating shaft 6 is rotatably connected to the middle of the display case 5, and the pointer 7 is fixedly connected to the end of the rotating shaft 6. The groove 9 is opened in the middle of the display case 5, and the power supply box 12 is fixedly connected to the middle of the groove 9. The buzzer 13 is fixedly connected to the middle of the display case 5. The power supply boxes 12 are connected to each other through the wire 11. The end of the wire 11 is connected to the trigger assembly, and the other side of the wire 11 is fixedly connected to the rotating shaft 6.

[0026] When detecting the gas pressure inside the gas pipeline body 1, the rotating shaft 6 can rotate as the gas concentration increases. When the gas concentration reaches the set threshold, the pointer 7 can contact the trigger component. Then, the buzzer 13 can be connected to the power supply box 12 through the wire 11, and the buzzer 13 can work to emit a sound. At this time, when the gas concentration inside the gas pipeline body 1 reaches the set threshold, the buzzer 13 can quickly warn the operator, thereby reducing the occurrence of dangerous situations during operation.

[0027] The triggering component includes an arc-shaped conductive sheet 16 and a connecting rod 17. The arc-shaped conductive sheet 16 is fixedly connected to the middle of the slide groove 15, and the connecting rod 17 is slidably connected inside the slide groove 15. A limit component is provided at the end of the connecting rod 17.

[0028] When performing a pressure test inside the gas pipeline body 1, the connecting rod 17 can slide in the middle of the slide groove 15. Then, the connecting rod 17 and the slide groove 15 can be fixed by the limiting component. When performing a pressure test inside the gas pipeline body 1, the position of the connecting rod 17 can be flexibly adjusted, thereby improving the compatibility of the device when testing different types of pipelines. At the same time, it can protect the gas pipeline body 1 and reduce the possibility of damage caused by excessive internal pressure.

[0029] The limiting component includes a limiting block 18 and a spring rod 19. Multiple sets of limiting blocks 18 are fixedly connected to the middle of the connecting rod 17. A spring rod 19 is fixedly connected to the middle of each set of limiting blocks 18. The spring rod 19 is slidably connected to the slide groove 15.

[0030] When it is necessary to move the position of the connecting rod 17, the connecting rod 17 can be pressed down, which will compress the spring rod 19 in the middle of the limiting block 18, and then the connecting rod 17 can slide in the middle of the slide groove 15. After the connecting rod 17 is slid to the appropriate position, the limiting block 18 and the slide groove 15 can be squeezed by the elastic force of the spring rod 19, thereby fixing the connecting rod 17.

[0031] Example 2: Figures 1-4As shown, a straight groove 20 is provided in the middle of the connecting rod 17, a small spring 21 is fixedly connected to the middle of the straight groove 20, and a guide iron 22 is fixedly connected to the end of the small spring 21. The guide iron 22 is slidably connected to the connecting rod 17.

[0032] When the connecting rod 17 is pressed, the small spring 21 can keep the guide iron 22 in contact with the arc-shaped conductive sheet 16. This allows the connecting rod 17 to be connected to the connecting post 10 after the connecting rod 17 is moved, reducing the possibility of poor contact after the connecting rod 17 is moved, which could cause the buzzer 13 to malfunction.

[0033] The pointer 7 has a slot 23 in the middle, and the slot 23 is slidably connected to the connecting rod 17.

[0034] When the pointer 7 and the connecting rod 17 are in contact, the connecting rod 17 can be placed inside the slot 23. This process can increase the contact area between the pointer 7 and the connecting rod 17 when the buzzer 13 needs to work, thereby reducing the occurrence of poor contact caused by relative sliding between the pointer 7 and the connecting rod 17. Example

[0035] like Figures 1-4 As shown, a rubber pad 24 is fixed to the end of the connecting rod 17.

[0036] When using the connecting rod 17, the rubber pad 24 can reduce the occurrence of contact between the end of the connecting rod 17 and the glass fixed in the middle of the display case 5, thereby reducing external interference to the operation of the buzzer 13.

[0037] The descriptions of the orientation and relative positional relationships of the structure in this utility model, such as descriptions of front, back, left, right, up, and down, do not constitute a limitation on this utility model, but are merely for the convenience of description.

Claims

1. A pressure injection device for gas pipelines, characterized in that: The system includes a gas pipeline body (1), a safety valve (2) fixedly connected to the middle of the gas pipeline body (1), a signal transmission line (3) fixedly connected to the bottom of the safety valve (2), a connecting pipe (4) fixedly connected to the middle of the gas pipeline body (1), the other side of the signal transmission line (3) being fixedly connected to the connecting pipe (4), a display housing (5) fixedly connected to the end of the connecting pipe (4), a warning component provided in the middle of the display housing (5), a scale line (14) fixedly connected in the middle of the display housing (5), a slide groove (15) opened in the middle of the display housing (5), and a trigger component provided in the middle of the slide groove (15).

2. The gas pipeline pressurization device according to claim 1, characterized in that: The warning component includes a rotating shaft (6), a pointer (7), a groove (9), a connecting post (10), a wire (11), a power box (12), and a buzzer (13). The rotating shaft (6) is rotatably connected to the middle of the display case (5). The pointer (7) is fixedly connected to the end of the rotating shaft (6). The groove (9) is opened in the middle of the display case (5). The power box (12) is fixedly connected to the middle of the groove (9). The buzzer (13) is fixedly connected to the middle of the display case (5). The power box (12) is connected to the power box (12) through the wire (11). The end of the wire (11) is connected to the trigger component. The other side of the wire (11) is fixedly connected to the rotating shaft (6).

3. The gas pipeline pressurization device according to claim 1, characterized in that: The triggering component includes an arc-shaped conductive sheet (16) and a connecting rod (17). An arc-shaped conductive sheet (16) is fixedly connected to the middle of the groove (15). A connecting rod (17) is slidably connected inside the groove (15). A limit component is provided at the end of the connecting rod (17).

4. A gas pipeline pressurization device according to claim 3, characterized in that: The limiting component includes a limiting block (18) and a spring rod (19). Multiple sets of limiting blocks (18) are fixedly connected to the middle of the connecting rod (17). A spring rod (19) is fixedly connected to the middle of each of the multiple sets of limiting blocks (18). The spring rod (19) is slidably connected to the slide groove (15).

5. A gas pipeline pressurization device according to claim 3, characterized in that: The connecting rod (17) has a straight groove (20) in the middle, a small spring (21) is fixed in the middle of the straight groove (20), and a guide iron (22) is fixed at the end of the small spring (21). The guide iron (22) is slidably connected to the connecting rod (17).

6. A gas pipeline pressurization device according to claim 2, characterized in that: The pointer (7) has a slot (23) in the middle, and the slot (23) is slidably connected to the connecting rod (17).

7. A gas pipeline pressurization device according to claim 3, characterized in that: A rubber pad (24) is fixed to the end of the connecting rod (17).

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