Pressure transmitter for gas pipelines

Abstract

The utility model discloses a pressure transmitting device of gas pipeline, including the switching pipeline of connection in gas pipeline, the gas pipeline of communication in switching pipeline outer wall, the pressure detection equipment of communication in gas pipeline top, the frame of fixed in switching pipeline's outer wall, set up in the motor of frame top, locking lock catch is connected between gas pipeline and switching pipeline, and the output shaft of motor passes through the fixed connection of frame and is provided with the threaded column through the shaft coupling, is provided with movable plate in the frame, and the bottom vertical fixed connection of movable plate has the baffle of matching in switching pipeline, and the baffle is vertically inserted in switching pipeline, this device is integrated with pressure detection and gas blocking function, need not to depend on external equipment to realize pressure monitoring and emergency blocking simultaneously, and the comprehensive utilization of equipment is improved greatly, can drive the baffle fast action through the motor under the condition of emergency, and the emergency response time is shortened significantly, and the safety protection ability of pipeline system is enhanced, has good practicality.

Description

Technical Field

[0001] This utility model belongs to the field of gas pipeline technology, specifically relating to a pressure transmitter for gas pipelines. Background Technology

[0002] Gas pipelines, as core infrastructure in modern industry and people's lives, play a crucial role in the safe and efficient transportation of various gaseous media. The media they transport include natural gas, hydrogen, oxygen, nitrogen, and many others, and are widely used in important fields such as energy supply, chemical production, medical care, and metallurgical manufacturing. These pipeline systems form continuous, closed channels using high-strength pipes and specialized connectors, and integrate key components such as pressure regulating devices, leak monitoring systems, and safety shut-off devices to ensure stable gas delivery to end users under preset pressure and flow parameters. Because the transported media often possess flammable, explosive, corrosive, or combustion-supporting properties, gas pipeline systems have extremely high safety requirements, needing to meet stringent standards for explosion-proof, corrosion-resistant, and temperature-resistant properties to mitigate safety risks such as leaks and explosions. In the large-scale development of industrial production and energy supply, the stable operation of gas pipeline systems is directly related to production efficiency, energy security, and public safety, serving as a vital foundation for the orderly conduct of modern socio-economic activities.

[0003] In the safe operation of gas pipeline systems, pressure transmitters, as core devices for monitoring gas pressure parameters within the pipeline, directly impact the efficiency of sensing and controlling the pipeline's operational status. However, most existing new gas pipeline pressure transmitters suffer from limited functionality: their primary role is limited to monitoring and feedback of pressure parameters, failing to provide temporary gas flow interruption capabilities in emergencies such as pipeline overpressure or leakage. When emergency gas flow interruption is required, other independent operating devices must be relied upon. This not only reduces the overall utilization rate of the pressure transmitter but also prolongs emergency response time, weakens the rapid response capability during sudden accidents, and hinders the long-term stable application of pressure transmitters under complex operating conditions. Therefore, a pressure transmitting device for gas pipelines is urgently needed. Utility Model Content

[0004] To address some or all of the technical problems existing in the prior art, this utility model provides a pressure transmitter for a gas pipeline. The pressure transmitter is connected between two gas pipelines and includes a transfer pipe connected to the gas pipelines, a gas delivery pipe communicating with the outer wall of the transfer pipe, a pressure detection device communicating with the top of the gas delivery pipe, a frame fixed to the outer wall of the transfer pipe, and a motor disposed at the top of the frame.

[0005] Both the adapter pipe and the gas pipe end have external threads, and a locking buckle connects the gas pipe and the adapter pipe. The inner wall of the locking buckle is provided with an internal thread that matches the external threads.

[0006] The output shaft of the motor, passing through the frame, is fixedly connected to a threaded post via a coupling. The threaded post is disposed within the frame. A movable plate is disposed within the frame, and the movable plate has guide holes and threaded holes respectively. The threaded post is threaded into the threaded holes. A limiting post with clearance fit to the guide holes is vertically fixed at the top of the frame. A barrier plate matching the adapter pipe is vertically fixed at the bottom of the movable plate, and the barrier plate is vertically inserted into the adapter pipe.

[0007] Furthermore, in the pressure transmitter of the gas pipeline described above, a mounting plate is fixed to the top of the frame by fasteners. The length and width of the mounting plate are both smaller than the length and width of the frame. A handle is fixedly connected to the mounting plate, and the length of the handle is smaller than the length of the mounting plate.

[0008] Furthermore, in the pressure transmitter of the gas pipeline described above, the height of the threaded post is less than the height of the frame, and the height of the limiting post is equal to the height of the threaded post.

[0009] Furthermore, in the pressure transmitter of the gas pipeline described above, a sealing strip is provided between the barrier plate and the transfer pipe.

[0010] Furthermore, in the pressure transmitter of the aforementioned gas pipeline, the pressure detection device is connected to a display screen and an alarm.

[0011] The pressure transmitter for gas pipelines of this invention has the following advantages and beneficial effects:

[0012] This device features a simple structure and is easy to assemble and disassemble. By integrating pressure detection and gas blocking functions, it can simultaneously achieve pressure monitoring and emergency blocking without relying on external equipment, significantly improving the overall utilization rate of the equipment. In addition, in case of an emergency, the motor-driven baffle plate can quickly move, significantly shortening the emergency response time and enhancing the safety protection capability of the pipeline system. The threaded locking buckle ensures a secure and sealed connection between the transfer pipe and the gas pipeline, effectively reducing the risk of gas leakage. Furthermore, the handle structure facilitates the overall handling of the device, and the display screen and alarm provide real-time feedback on the pressure status, making it highly practical. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for further understanding of the embodiments of this utility model and constitute a part of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0014] Figure 1 This is a schematic diagram of the structure of the pressure transmitter device for gas pipelines according to this utility model;

[0015] Figure 2 This is a cross-sectional view of the pressure transmitter device for gas pipelines according to this utility model.

[0016] Explanation of reference numerals in the attached figures:

[0017] 1. Adapter pipe; 2. Gas supply pipe; 3. Pressure testing equipment; 4. Frame; 5. Motor; 6. Threaded post; 7. Movable plate; 8. Limiting post; 9. Barrier plate; 10. Locking buckle; 11. Fastener; 12. Mounting plate; 13. Handle. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] like Figure 1 and Figure 2As shown, this utility model discloses a pressure transmitter for a gas pipeline. The pressure transmitter is connected between two gas pipelines (not shown in the figure). The pressure transmitter includes a transfer pipe 1 connected to the gas pipelines, a gas delivery pipe 2 connected to the outer wall of the transfer pipe 1, a pressure detection device 3 connected to the top of the gas delivery pipe 2, a frame 4 fixed to the outer wall of the transfer pipe 1, and a motor 5 installed on the top of the frame 4. The gas delivery pipe 2 is used to introduce gas from the transfer pipe into the pressure detection device 3 for pressure monitoring. The frame 4 not only provides installation space for the blocking mechanism but also acts as a dustproof protective cover to prevent dust from entering the transfer pipe 1 through the barrier plate 9. Both the transfer pipe 1 and the gas pipeline have external threads at their ends. A locking buckle 10 connects the gas pipeline and the transfer pipe 1, and the inner wall of the locking buckle 10 is provided with a matching... For the internal thread of the external thread, the sealing connection between the two can be achieved by the locking buckle 10 with the internal thread on the inner wall. Rotating the locking buckle 10 can make the threads tightly mesh, ensuring the airtightness of the connection. The output shaft of the motor 5 passes through the frame 4 and is fixedly connected to the threaded column 6 through the coupling. The operation of the motor 5 can drive the threaded column 6 to rotate. The threaded column 6 is set inside the frame 4. The frame 4 is provided with a movable plate 7. The movable plate 7 is provided with guide holes and threaded holes respectively. The threaded column 6 is threadedly connected to the threaded hole. The top of the frame 4 is vertically fixed with a limiting post 8 that is clearance-fitted to the guide hole. Under the guidance of the limiting post 8, the movable plate 7 can slide stably along the direction of the limiting post 8 to avoid displacement. The bottom of the movable plate 7 is vertically fixed with a barrier plate 9 that matches the transfer pipe 1. The barrier plate 9 is vertically inserted into the transfer pipe 1 and can move with the movable plate 7 into the transfer pipe.

[0020] Furthermore, in the pressure transmitter of the gas pipeline of this utility model, the top of the frame 4 is fixed with a mounting plate 12 by fasteners 11. The length and width of the mounting plate 12 are both smaller than the length and width of the frame 4. A handle 13 is fixedly connected to the mounting plate 12. The length of the handle 13 is smaller than the length of the mounting plate 12.

[0021] Furthermore, in the pressure transmitter of the gas pipeline of this utility model, the height of the threaded post 6 is less than the height of the frame 4, and the height of the limiting post 8 is equal to the height of the threaded post 6. This setting ensures that the moving stroke of the movable plate 7 is reasonable and meets the requirement that the blocking plate 9 completely blocks or disconnects from the transfer pipeline 1.

[0022] In one specific embodiment, in the pressure transmitter of the gas pipeline of this utility model, a sealing strip is provided between the baffle plate 9 and the transfer pipe 1. This arrangement enhances the sealing performance when the baffle plate 9 is inserted into the transfer pipe 1 to block it, and prevents the gas in the transfer pipe 1 from leaking out.

[0023] In one specific embodiment, in the pressure transmitter of the gas pipeline of this utility model, the pressure detection device 3 is connected to a display screen and an alarm. By setting the display screen, the pressure data in the pipeline can be displayed in real time, and the alarm can issue a warning signal when the pressure is abnormal, so that the staff can keep abreast of the pipeline status.

[0024] The working principle of the pressure transmitter for gas pipelines of this utility model is as follows:

[0025] Move the entire unit to the working position using handle 13. When in use, first connect the two gas pipes that need to be connected to the adapter pipe 1, and then lock the connection port by rotating the locking buckle 10. When the gas passes through the adapter pipe 1, some gas will also enter the pressure detection device 3 through the gas supply pipe 2, which can detect the pressure of the internal gas. If it is necessary to temporarily block the flowing gas, start the motor 5. The output shaft of the motor 5 rotates, causing the threaded column 6 to rotate, thereby causing the movable plate 7 to drive the blocking plate 9 to be inserted into the adapter pipe 1, forming a sealing structure, thereby completing the blocking of the flowing gas.

[0026] In summary, compared with the prior art, the pressure transmitter for gas pipelines of this utility model has the following advantages and beneficial effects:

[0027] This device has a simple structure and is easy to assemble and disassemble. By integrating pressure detection and gas blocking functions, it can simultaneously achieve pressure monitoring and emergency blocking without relying on external equipment, greatly improving the overall utilization rate of the equipment. At the same time, in case of an emergency, the motor 5 can drive the barrier plate 9 to act quickly, significantly shortening the emergency response time and enhancing the safety protection capability of the pipeline system. The threaded locking buckle 10 can ensure a tight and sealed connection between the transfer pipe 1 and the gas pipeline, effectively reducing the risk of gas leakage. In addition, the handle 13 structure facilitates the overall handling of this device, and the display screen and alarm provide real-time feedback on the pressure status, making it highly practical.

[0028] It should be noted that, unless otherwise expressly specified and limited, the term "connection" or its synonyms should be interpreted broadly in this document. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Furthermore, expressions such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. At the same time, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In addition, "front," "rear," "left," "right," "upper," and "lower" in this document refer to the placement state shown in the accompanying drawings.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A pressure transmitter for a gas pipeline, the pressure transmitter being connected between two gas pipelines, characterized in that, The pressure transmitter for the gas pipeline includes a transfer pipe connected to the gas pipeline, a gas delivery pipe communicating with the outer wall of the transfer pipe, a pressure detection device communicating with the top of the gas delivery pipe, a frame fixed to the outer wall of the transfer pipe, and a motor disposed on the top of the frame, wherein: Both the adapter pipe and the gas pipe end have external threads, and a locking buckle connects the gas pipe and the adapter pipe. The inner wall of the locking buckle is provided with an internal thread that matches the external threads. The output shaft of the motor, passing through the frame, is fixedly connected to a threaded post via a coupling. The threaded post is disposed within the frame. A movable plate is disposed within the frame, and the movable plate has guide holes and threaded holes respectively. The threaded post is threaded into the threaded holes. A limiting post with clearance fit to the guide holes is vertically fixed at the top of the frame. A barrier plate matching the adapter pipe is vertically fixed at the bottom of the movable plate, and the barrier plate is vertically inserted into the adapter pipe.

2. The pressure transmitter for gas pipelines according to claim 1, characterized in that, A mounting plate is fixed to the top of the frame by fasteners. The length and width of the mounting plate are both smaller than the length and width of the frame. A handle is fixedly connected to the mounting plate. The length of the handle is smaller than the length of the mounting plate.

3. The pressure transmitter for gas pipelines according to claim 1, characterized in that, The height of the threaded post is less than the height of the frame, and the height of the limiting post is equal to the height of the threaded post.

4. The pressure transmitter for gas pipelines according to claim 1, characterized in that, A sealing strip is provided between the barrier plate and the transfer pipe.

5. The pressure transmitter for gas pipelines according to claim 1, characterized in that, The pressure detection device is connected to a display screen and an alarm.

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