Gas detection drainage device applied to SCADA (supervisory control and data acquisition) system

Abstract

The utility model discloses a gas detection drainage device applied to an SCADA (Supervisory Control And Data Acquisition) system, which comprises a tube body, a gas detection device and a drainage device, wherein a shell is fixedly arranged on the outer wall of the tube body; the centrifugal fan is fixedly arranged on the inner wall of the shell, and the air inlet end of the centrifugal fan communicates with the pipe body through a drainage pipe; the standing bin is communicated with the air outlet end of the centrifugal fan through a connecting pipe; the gas detection assembly is arranged on the standing bin and is used for detecting the pressure intensity and the concentration of gas in the standing bin; and two ends of the electromagnetic valve are respectively communicated with the standing bin and the pipe body. By arranging the drainage pipe and the centrifugal fan, high-speed gas in the pipe body is introduced into the standing bin, under the condition that the electromagnetic valve is closed, the gas in the standing bin is continuously accumulated, the pressure intensity is gradually increased, and the flow speed is gradually reduced, and at the moment, the gas detection assembly on the standing bin can accurately measure the concentration of the gas in the standing bin; and the accuracy of a detection result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection, in particular to a gas detection and drainage device applied to a SCADA system. Background Art

[0002] In modern industrial automation, Supervisory Control and Data Acquisition (SCADA) systems are a core technology for managing and controlling production processes. By integrating various sensors, controllers, and other input and output devices, SCADA systems enable remote monitoring and management of industrial field equipment. They not only collect data from various inspection points but also analyze and process it, automatically executing control commands based on pre-set rules to ensure efficient and safe production processes.

[0003] SCADA systems play an indispensable role in the natural gas transportation industry. They help operators monitor key parameters such as pipeline pressure, temperature, flow rate, and concentration in real time, and take prompt action when anomalies are detected. However, in practice, especially in natural gas pipelines, traditional concentration detection devices often struggle to accurately measure the true concentration of natural gas due to the high velocity of the gas flowing within the pipeline, thus compromising the overall monitoring effectiveness of the SCADA system.

[0004] To this end, the present application proposes a gas detection and drainage device applied to a SCADA system to solve the above technical problems. Utility Model Content

[0005] The main purpose of this utility model is to solve the above-mentioned deficiencies and provide a gas detection and drainage device for use in SCADA systems, which can adapt to the natural gas concentration detection needs in high-speed flow environments, ensure the accuracy and reliability of the detection results, and improve the monitoring accuracy during the natural gas transportation process.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A gas detection and drainage device for a SCADA system comprises: a tube body, a shell being fixedly provided on the outer wall of the tube body; a centrifugal fan fixedly provided on the inner wall of the shell, with an air inlet end connected to the tube body via a drainage pipe; a static chamber connected to an air outlet end of the centrifugal fan via a connecting pipe; a gas detection component provided on the static chamber and used to detect the pressure and concentration of the gas in the static chamber; and a solenoid valve, with both ends respectively connected to the static chamber and the tube body.

[0008] Furthermore, it also includes a control board, which is arranged in the shell, and the solenoid valve, gas detection component and centrifugal fan are electrically connected to the control board, and the control board is connected to the control circuit of the SCADA system.

[0009] Furthermore, a one-way valve is provided on the connecting pipe, and the one-way valve allows the air to flow from the air outlet end of the centrifugal fan to the static bin.

[0010] Furthermore, a multi-channel adapter is fixedly provided on the outer wall of the shell, one end of the multi-channel adapter is inserted into the shell and connected with the air inlet end of the centrifugal fan, and the other end is provided with multiple nozzles. There are multiple drainage pipes, one end of the multiple drainage pipes is connected to the nozzle, and the other ends are evenly arranged around and inserted into the tube body.

[0011] Furthermore, the gas detection component includes a gas pressure sensor and a gas concentration sensor arranged on the static chamber. There are multiple gas concentration sensors, which are evenly arranged on the static chamber. The gas pressure sensor and multiple gas concentration sensors are electrically connected to the control board.

[0012] Furthermore, a pointing arrow parallel to the axis of the tube body is provided on the outer wall of the tube body, and the direction specified by the pointing arrow is from the connection between the drainage tube and the tube body to the connection between the solenoid valve and the tube body.

[0013] Furthermore, flanges are provided at both ends of the tube body.

[0014] The beneficial effects of the present invention are as follows:

[0015] The utility model introduces the high-speed gas in the pipe body into the static chamber by arranging a drainage pipe and a centrifugal fan. When the solenoid valve is closed, the gas in the static chamber continues to accumulate, the pressure gradually increases, and the flow rate gradually decreases. At this time, the gas detection component on the static chamber can accurately measure the concentration of the gas in the static chamber, thereby improving the accuracy of the detection result; by evenly arranging and inserting multiple drainage pipes on the pipe body, multiple sampling points are taken on the same cross-section of the pipe body, and the multiple streams of gas introduced into the centrifugal fan are stirred and mixed by the centrifugal fan impeller, they can more accurately represent the true concentration of the gas in the pipe body, thereby further improving the accuracy of the final detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1This is a schematic diagram of the overall structure of a half-section shell of an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the half-section overall structure of the shell and tube body of one embodiment of the present invention.

[0019] In the figure: 1. Pipe body; 2. Shell; 3. Centrifugal fan; 4. Drainage pipe; 5. Static chamber; 6. Connecting pipe; 7. Gas detection component; 71. Gas pressure sensor; 72. Gas concentration sensor; 8. Solenoid valve; 9. One-way valve; 10. Multi-channel adapter; 11. Nozzle; 12. Pointing arrow; 13. Flange. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] like Figure 1-2 As shown, the utility model provides a gas detection and drainage device that can be applied to a SCADA system, including:

[0022] The system includes a tube body 1, with a housing 2 fixedly mounted on its outer wall. A centrifugal fan 3 is fixedly mounted on the inner wall of the housing 2, with its air inlet connected to the tube body 1 via a drainage pipe 4. A resting chamber 5 is connected to the air outlet of the centrifugal fan 3 via a connecting pipe 6. A gas detection assembly 7 is mounted on the resting chamber 5 and is used to detect the pressure and concentration of the gas in the chamber. A solenoid valve 8 is connected to the resting chamber 5 and the tube body 1 at both ends. A control board is also included, mounted in the housing 2. The solenoid valve 8, gas detection assembly 7, and centrifugal fan 3 are electrically connected to the control board, which is connected to the control circuit of the SCADA system.

[0023] After the device is connected to the gas delivery pipeline, the SCADA control circuit is used to send a signal to the control panel, which turns on the centrifugal fan 3. The centrifugal fan 3 draws the high-speed flowing gas in the pipe body 1 into the centrifugal fan 3 through the drainage pipe 4, and inputs it into the static chamber 5 through the connecting pipe 6. At this time, the solenoid valve 8 is in a closed state, so the gas in the static chamber 5 continues to accumulate, the pressure gradually increases, and the flow rate gradually decreases. When the gas pressure in the static chamber 5 reaches the preset high pressure value of the gas detection component 7, the gas detection component 7 sends a signal to the control panel, and the control panel turns off the centrifugal fan 3. The static chamber 5 is in a pressure-maintaining state. At this time, The gas is basically in a static state, and the gas detection component 7 can accurately measure the concentration of the gas in the static chamber 5. After the static chamber 5 maintains pressure for a preset period of time, the control panel opens the solenoid valve 8, and the gas in the static chamber 5 re-enters the tube body 1 under the action of its own pressure. The pressure in the static chamber 5 gradually decreases. When it decreases to the preset low pressure value of the gas detection component 7, the gas detection component 7 sends a signal to the control panel, and the control panel closes the solenoid valve 8 and reopens the centrifugal fan 3 to perform a new round of gas concentration detection. This cycle is repeated to achieve accurate detection of the gas concentration in the tube body 1, and it is monitored with the help of the SCADA system.

[0024] In one embodiment, a one-way valve 9 is provided on the connecting pipe 6 , and the one-way valve 9 allows the air to flow from the outlet end of the centrifugal fan 3 to the static chamber 5 .

[0025] With this design, the gas can only flow from the centrifugal fan 3 to the static bin 5 , and when the centrifugal fan 3 transports the gas to the static bin 5 , no gas backflow phenomenon occurs.

[0026] In one embodiment, a multi-channel adapter 10 is fixedly provided on the outer wall of the shell 2. One end of the multi-channel adapter 10 is inserted into the shell 2 and connected to the air inlet end of the centrifugal fan 3. The other end is provided with multiple nozzles 11. Multiple drainage pipes 4 are provided. One end of the multiple drainage pipes 4 is connected to the nozzle 11, and the other ends are evenly arranged around and inserted on the tube body 1.

[0027] With this design, multiple drainage tubes 4 are used to sample gas at multiple points on the cross section of the tube body 1. Multiple streams of gas introduced into the centrifugal fan 3 from the multiple drainage tubes 4 are stirred and mixed by the impellers of the centrifugal fan 3, which can more accurately represent the actual concentration of the gas in the tube body 1, thereby ultimately improving the accuracy of the detection results.

[0028] In one embodiment, the gas detection component 7 includes a gas pressure sensor 71 and a gas concentration sensor 72 arranged on the static chamber 5. There are multiple gas concentration sensors 72, which are evenly arranged on the static chamber 5. The gas pressure sensor 71 and the multiple gas concentration sensors 72 are electrically connected to the control board.

[0029] With this design, multiple gas concentration sensors 72 measure the gas concentration at multiple points in the static chamber 5, and the measured results are sent to the control board. After the control board takes the average calculation, the final result is output to the SCADA system, thereby improving the accuracy of the detection results.

[0030] In one embodiment, a pointing arrow 12 parallel to the axis of the tube body 1 is provided on the outer wall of the tube body 1 , and the direction indicated by the pointing arrow 12 is from the connection between the drainage tube 4 and the tube body 1 to the connection between the solenoid valve 8 and the tube body 1 .

[0031] When the device is connected to the gas delivery pipeline, the gas delivery direction should be the same as the direction indicated by the arrow 12. With this design, the sampling point of the drainage tube 4 is located upstream of the gas delivery process, and the detected gas discharged from the solenoid valve 8 will not enter the drainage tube 4 again, thereby ensuring the accuracy of the sampling of the drainage tube 4.

[0032] In one embodiment, flanges 13 are provided at both ends of the tube body 1 .

[0033] With this design, the device can be easily connected to a gas delivery pipeline using the flange 13 .

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

[0035] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0036] In addition, "multiple" means more than two. Furthermore, the technical solutions of the various embodiments may be combined with each other, but this must be based on the premise that they can be implemented by a person of ordinary skill in the art. If the combination of technical solutions is mutually inconsistent or cannot be implemented, it shall be deemed that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A gas detection and drainage device used in a SCADA system, characterized in that: include: A tube body (1), wherein a shell (2) is fixedly arranged on the outer wall of the tube body (1); A centrifugal fan (3) is fixedly arranged on the inner wall of the housing (2), and an air inlet end is connected to the pipe body (1) through a drainage pipe (4); The static chamber (5) is connected to the air outlet of the centrifugal fan (3) through a connecting pipe (6); A gas detection component (7), arranged on the static chamber (5), for detecting the pressure and concentration of the gas in the static chamber (5); The electromagnetic valve (8) has two ends connected to the static chamber (5) and the pipe body (1) respectively.

2. A gas detection and drainage device for use in a SCADA system according to claim 1, characterized in that: It also includes a control panel, which is arranged in the housing (2); the solenoid valve (8), the gas detection component (7) and the centrifugal fan (3) are electrically connected to the control panel, and the control panel is connected to the control circuit of the SCADA system.

3. A gas detection and drainage device for use in a SCADA system as claimed in claim 2, characterized in that: A one-way valve (9) is provided on the connecting pipe (6), and the one-way valve (9) allows air to flow from the outlet end of the centrifugal fan (3) to the static chamber (5).

4. A gas detection and drainage device for use in a SCADA system as claimed in claim 3, characterized in that: A multi-channel adapter (10) is fixedly provided on the outer wall of the shell (2); one end of the multi-channel adapter (10) is inserted into the shell (2) and communicates with the air inlet end of the centrifugal fan (3); the other end is provided with a plurality of nozzles (11); a plurality of drainage pipes (4) are provided; one end of the plurality of drainage pipes (4) is connected to the nozzle (11), and the other ends are evenly arranged around and inserted into the pipe body (1).

5. A gas detection and drainage device for use in a SCADA system as claimed in claim 4, characterized in that: The gas detection assembly (7) comprises a gas pressure sensor (71) and a gas concentration sensor (72) arranged on the static chamber (5); a plurality of gas concentration sensors (72) are provided and evenly arranged on the static chamber (5); the gas pressure sensor (71) and the plurality of gas concentration sensors (72) are electrically connected to the control panel.

6. A gas detection and drainage device for use in a SCADA system as claimed in claim 5, characterized in that: A directional arrow (12) parallel to the axis of the tube body (1) is provided on the outer wall of the tube body (1), and the direction designated by the directional arrow (12) is from the connection point between the drainage tube (4) and the tube body (1) to the connection point between the solenoid valve (8) and the tube body (1).

7. A gas detection and drainage device for use in a SCADA system as claimed in claim 6, characterized in that: Flanges (13) are provided at both ends of the tube body (1).

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