Gas pipeline transportation automatic powder spraying explosion suppression testing device and testing method

Abstract

This invention provides an automatic powder spraying explosion suppression testing device and method for gas pipeline transportation. The automatic powder spraying explosion suppression testing device for gas pipeline transportation includes: a test chamber, a connecting pipe, an ultraviolet (UV) light mechanism, a flame sensor, an inflation mechanism, a pressure sensor, and a main control mechanism. The test chamber has a test cavity. The connecting pipe is located within the test cavity, with both ends passing through the two side walls of the test chamber and extending a predetermined distance. The UV light mechanism is located within the test cavity. The flame sensor is located at the top of the test cavity. The inflation mechanism is located at the first end of the connecting pipe. The pressure sensor is located at the second end of the connecting pipe. The main control mechanism is connected to both the flame sensor and the pressure sensor. This invention solves the problems of existing technologies for testing the performance of explosion suppression devices in a gas environment, which is complex and potentially dangerous, and the testing process is cumbersome and limited.

Description

Technical Field

[0001] This invention relates to the field of automatic powder injection explosion suppression testing technology for gas pipeline transportation, and more specifically, to an automatic powder injection explosion suppression testing device and testing method for gas pipeline transportation. Background Technology

[0002] Gas mines are complex environments filled with potential hazards such as gas leaks and fires. To ensure the safety and efficiency of gas mine operations, automatic powder extinguishing devices for gas pipeline transportation need to be installed on the pipelines. The function of these devices is to promptly detect the ignition source (such as friction sparks, impact sparks, static sparks, electrical sparks, internal fires, external fires, etc.) or an explosion occurs when an explosion happens. The ultraviolet flame sensor detects the ignition source or flame signal and outputs a trigger level to the extinguishing device, rapidly spraying dry powder extinguishing agent to extinguish the ignition source or flame. This will prevent the explosion from spreading further in the initial stage.

[0003] Performance testing of automatic powder injection explosion suppression devices for gas pipeline transportation is crucial. While the market offers a growing number of such devices, there remains a lack of supporting equipment for performance testing. Current technology involves testing the devices in a gas environment, which is complex, potentially dangerous, and involves cumbersome and limited testing procedures. Therefore, to ensure the safety and efficiency of testing automatic powder injection explosion suppression devices for gas pipeline transportation, there is an urgent need to develop a convenient and rapid performance testing device. Summary of the Invention

[0004] The main objective of this invention is to provide an automatic powder injection explosion suppression test device and test method for gas pipeline transportation, so as to at least solve the problems in the prior art of testing the performance of explosion suppression devices in a gas environment, which is complex and potentially dangerous, and the test process is cumbersome and limited.

[0005] To achieve the above objectives, one aspect of the present invention provides an automatic powder spraying explosion suppression testing device for gas pipeline transportation, comprising: a test chamber, a connecting pipe, an ultraviolet (UV) emission mechanism, multiple flame sensors, an inflation mechanism, a pressure sensor, and a main control mechanism; the test chamber has a test cavity; the connecting pipe is disposed within the test cavity, with both ends passing through the two side walls of the test chamber and extending a predetermined distance; the UV emission mechanism is disposed within the test cavity and is used to emit UV radiation within the test cavity; multiple flame sensors are disposed at the top of the test cavity and are used to sense the UV radiation within the test cavity and output a flame signal; the inflation mechanism is disposed at the first end of the connecting pipe and is used to input gas into the connecting pipe; the pressure sensor is disposed at the second end of the connecting pipe and is used to monitor the gas pressure within the connecting pipe and output a pressure signal; the main control mechanism is connected to both the flame sensor and the pressure sensor, and is used to control the operation of the automatic powder spraying explosion suppression device based on the flame signal and the pressure signal.

[0006] Furthermore, the ultraviolet (UV) mechanism includes: a UV lamp and a light control device; the UV lamp is mounted on the bottom of the test chamber via a mounting plate; the light control device is partially mounted on the top of the test chamber, with its top extending through the top of the test chamber and positioned on its outside; the light control device is electrically connected to the UV lamp to control the UV lamp to emit UV light within the test chamber.

[0007] Furthermore, the lighting control device includes: a button mounting base and a button device; the button mounting base is located on the top outer side of the test chamber; the button device is located in the button mounting base and extends a preset distance into the test chamber, and the bottom of the button device is electrically connected to the ultraviolet lamp to control the ultraviolet lamp to emit ultraviolet light in the test chamber.

[0008] Furthermore, a first sealing ring is provided between the button mounting base and the top of the test box.

[0009] Furthermore, an inflation valve is provided on the first end of the connecting pipe, and a second sealing ring is provided between the inflation valve and the first end of the connecting pipe. The inflation mechanism includes an air pump, which is connected to the inflation valve and is used to input gas into the connecting pipe. The air pump is a manual air pump or an automatic air pump.

[0010] Furthermore, there are two flame sensors, a third sealing ring is provided between the flame sensor and the top of the test cavity, and a fourth sealing ring is provided between the pressure sensor and the second end of the connecting tube.

[0011] Furthermore, the main control mechanism includes: a control box, a host computer, and an explosion-proof detection controller; the control box is connected to both the flame sensor and the pressure sensor, and is used to receive flame signals and pressure signals and send alarm signals to the host computer; the host computer is used to control the operation of the automatic powder spraying explosion suppression device according to the alarm signals; the explosion-proof detection controller is connected to the ultraviolet (UV) mechanism, the gas filling mechanism, and the host computer, and the host computer controls the UV mechanism and the gas filling mechanism to start through the explosion-proof detection controller. Furthermore, the control box is equipped with: a controller, an alarm module, and a communication module; the controller is connected to both the flame sensor and the pressure sensor, and is used to receive flame signals and air pressure signals; the alarm module is located on the controller, and when the alarm module receives a flame signal or air pressure signal that exceeds the preset air pressure range, the alarm module generates an alarm signal; the communication module is also located on the controller, and when the alarm module generates an alarm signal, the communication module sends an alarm signal to the host computer.

[0012] Furthermore, the control box is equipped with indicator lights, which are connected to the controller. When the alarm module generates an alarm signal, the controller controls the indicator lights to light up.

[0013] According to another aspect of the present invention, an automatic powder spraying explosion suppression test method is provided for gas pipeline transportation. This method is applied to an automatic powder spraying explosion suppression test device for gas pipeline transportation. The method includes: simulating a gas pipeline fire by activating an ultraviolet (UV) mechanism to emit UV light into the test chamber of the test box; after a flame sensor detects the UV light in the test chamber, the flame sensor sends a flame signal to the main control mechanism, which then controls the automatic powder spraying explosion suppression device to start based on the flame signal; simulating high pressure in the gas pipeline by continuously pressurizing the connecting pipe through an inflation mechanism; a pressure sensor monitors the gas pressure in the connecting pipe and sends a gas pressure signal to the main control mechanism; when the main control mechanism determines that the gas pressure signal exceeds a preset pressure range, the main control mechanism controls the automatic powder spraying explosion suppression device to start.

[0014] The beneficial effects of the technical solution of this invention are as follows: This invention uses an ultraviolet lamp to trigger a flame sensor and an air pump to increase the pressure inside the connecting pipe to trigger a pressure sensor, which can then be used to test the performance of an automatic powder injection explosion suppression device for gas pipeline transportation. Compared with traditional testing methods, this invention does not require testing in a complex and potentially dangerous underground gas environment; the test can be completed on the ground, ensuring the safety and convenience of performance testing. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the structure of an automatic powder injection explosion suppression test device for gas pipeline transportation, which is an optional embodiment of the present invention. Figure 2 This is a control block diagram of an automatic powder spraying explosion suppression test device for gas pipeline transportation, which is optional according to an embodiment of the present invention.

[0016] The above figures include the following reference numerals: 10. Test chamber; 20. Connecting pipe; 21. Inflation valve; 22. Second sealing ring; 30. Ultraviolet mechanism; 31. Ultraviolet lamp; 32. Lighting control device; 321. Button mounting base; 322. Button device; 33. Mounting plate; 34. First sealing ring; 40. Flame sensor; 41. Third sealing ring; 50. Inflation mechanism; 51. Air pump; 60. Pressure sensor; 61. Fourth sealing ring; 70. Main control mechanism; 71. Control box; 72. Host computer; 73. Controller; 74. Alarm module; 75. Communication module; 76. Explosion-proof detection controller. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] like Figure 1 As shown, an automatic powder injection explosion suppression testing device for gas pipeline transportation includes: a test chamber 10, a connecting pipe 20, an ultraviolet (UV) sensor 30, multiple flame sensors 40, an inflation mechanism 50, a pressure sensor 60, and a main control mechanism 70; the test chamber 10 has a test cavity; the connecting pipe 20 is partially disposed within the test cavity, with both ends of the connecting pipe 20 passing through two side walls of the test chamber 10 and extending a predetermined distance; the UV sensor 30 is disposed within the test cavity and is used to emit UV light within the test cavity; the flame sensors 40 are disposed within... At the top of the test chamber, a flame sensor 40 is used to sense ultraviolet light inside the test chamber and output a flame signal; an inflation mechanism 50 is located at the first end of the connecting pipe 20 and is used to input gas into the connecting pipe 20; a pressure sensor 60 is located at the second end of the connecting pipe 20 and is used to monitor the gas pressure inside the connecting pipe 20 and output a pressure signal; a main control mechanism 70 is connected to both the flame sensor 40 and the pressure sensor 60 and is used to control the operation of the automatic powder spraying explosion suppression device according to the flame signal and the pressure signal.

[0019] It should be noted that the automatic powder spraying explosion suppression device is installed inside the test chamber of the test box 10. This invention uses a flame sensor 40 to monitor a simulated gas pipeline fire by the ultraviolet light mechanism 30, and a pressure sensor 60 to monitor a simulated excessive pressure inside the gas pipeline by the air filling mechanism 50. The main control mechanism 70 controls the operation of the automatic powder spraying explosion suppression device based on the flame and pressure signals from the flame sensor 40 and the pressure sensor 60. This invention uses an ultraviolet lamp to trigger the flame sensor and an air pump to increase the pressure inside the connecting pipe to trigger the pressure sensor, thus enabling performance testing of the automatic powder spraying explosion suppression device for gas pipeline transportation. Compared to traditional testing methods, this invention does not require testing in a complex and potentially dangerous underground gas environment; testing can be completed on the surface, ensuring the safety and convenience of performance testing.

[0020] As an optimized solution of the present invention, the two ends of the connecting pipe 20 are fully welded to the two connection points of the test chamber 10 to ensure the relative sealing of the test cavity.

[0021] As an optimized solution of the present invention, the connecting pipe 20 needs to be sealed to meet the test simulation of excessively high pressure inside the gas pipeline.

[0022] Preferably, the height of the test chamber 10 is adjustable. Depending on the trigger distance required by different flame sensors 40, adjusting the height of the test chamber 10 can control the distance between the ultraviolet lamp 31 and the flame sensor 40.

[0023] As an optimized solution of the present invention, such as Figure 1 As shown, the ultraviolet (UV) mechanism 30 includes a UV lamp 31 and a light control device 32. The UV lamp 31 is mounted on the bottom of the test chamber via a mounting plate 33. The light control device 32 is partially mounted on the top of the test chamber, with its top extending through the top of the test chamber 10 and positioned on its outer side. The light control device 32 is electrically connected to the UV lamp 31 to control the UV lamp 31 to emit UV light within the test chamber. Preferably, the UV lamp 31 is positioned on the bottom side of the connecting pipe 20 and is vertically opposite the flame sensor 40. By controlling the opening and closing of the UV lamp 31, a gas pipeline fire can be simulated.

[0024] As an optimized solution of the present invention, such as Figure 1 As shown, the lighting control device 32 includes a button mounting base 321 and a button device 322. The button mounting base 321 is disposed on the top outer side of the test chamber 10. The button device 322 is disposed in the button mounting base 321 and extends into the test chamber by a predetermined distance. The bottom of the button device 322 is electrically connected to the ultraviolet lamp 31 to control the ultraviolet lamp 31 to emit ultraviolet light within the test chamber. Preferably, controlling the ultraviolet lamp 31 by a button results in higher testing efficiency.

[0025] As an optimized solution of the present invention, such as Figure 1 As shown, a first sealing ring 34 is provided between the button mounting base 321 and the top of the test chamber 10. Preferably, the first sealing ring 34 is used to ensure a relative seal between the mounting point of the button mounting base 321 and the top of the test chamber 10.

[0026] As an optimized solution of the present invention, such as Figure 1 As shown, an inflation valve 21 is provided on the first end of the connecting pipe 20, and a second sealing ring 22 is provided between the inflation valve 21 and the first end of the connecting pipe 20. The inflation mechanism 50 includes an air pump 51, which is connected to the inflation valve 21. The air pump 51 is used to input gas into the connecting pipe 20; the air pump 51 is a manual air pump or an automatic air pump. Preferably, the second sealing ring 22 is used to ensure the first end of the connecting pipe 20 is sealed.

[0027] Preferably, the connecting pipe 20 does not require a separate pressure gauge. The manual or automatic air pump has its own pressure gauge, which can be used to directly observe the pressure value inside the connecting pipe 20.

[0028] As an optimized solution of the present invention, such as Figure 1 As shown, there are two flame sensors 40. A third sealing ring 41 is provided between the two flame sensors 40 and the top of the test chamber, and a fourth sealing ring 61 is provided between the pressure sensor 60 and the second end of the connecting pipe 20. Preferably, the third sealing ring 41 is used to ensure a relative seal between the flame sensor 40 and the top of the test chamber 10. The third sealing ring 41 is an O-ring. The fourth sealing ring 61 is used to ensure a seal at the second end of the connecting pipe 20.

[0029] Preferably, the flame sensor 40 is mounted on the top of the test chamber 10 by a plurality of countersunk screws.

[0030] As an optimized solution of the present invention, such as Figure 1 As shown, the main control mechanism 70 includes: a control box 71, a host computer 72, and an explosion-proof detection controller 76. The control box 71 is connected to both the flame sensor 40 and the pressure sensor 60. The control box 71 is used to receive flame signals and air pressure signals and send alarm signals to the host computer 72. The host computer 72 is used to control the operation of the automatic powder spraying explosion suppression device according to the alarm signals. The explosion-proof detection controller 76 is connected to the ultraviolet light mechanism 30, the gas filling mechanism 50, and the host computer 72. The host computer 72 can control the start of the ultraviolet light mechanism 30 and the gas filling mechanism 50 through the explosion-proof detection controller 76.

[0031] Specifically, the explosion-proof detection controller 76 is connected to the air pump 51 and the lighting control device 32. The explosion-proof detection controller 76 can automatically control the air pump to start and automatically turn on the lights.

[0032] Preferably, the host computer 72 can connect to multiple test chambers 10 to test multiple pressure and flame sensors simultaneously, enabling batch testing and improving testing efficiency.

[0033] As an optimized solution of the present invention, such as Figure 1 and Figure 2 As shown, the control box 71 contains: a controller 73, an alarm module 74, and a communication module 75. The controller 73 is connected to both the flame sensor 40 and the pressure sensor 60, and is used to receive flame signals and air pressure signals. The alarm module 74 is located on the controller 73. When the alarm module 74 receives a flame signal or an air pressure signal that exceeds a preset air pressure range, the alarm module 74 generates an alarm signal. The communication module 75 is also located on the controller 73. When the alarm module 74 generates an alarm signal, the communication module 75 sends an alarm signal to the host computer 72.

[0034] Preferably, when the alarm module 74 receives a flame signal, it immediately generates a first alarm signal. When the alarm module 74 receives a gas pressure signal, it first performs a real-time judgment. When the gas pressure signal exceeds a preset threshold, the alarm module 74 immediately generates a second alarm signal. Preferably, the communication module 75 sends the first and second alarm signals to the host computer 72 via a wireless network and a communication protocol.

[0035] Preferably, the control box 71 is equipped with an indicator light, which is connected to the controller 73. When the alarm module 74 generates an alarm signal, the controller 73 controls the indicator light to illuminate. The controller 73 can also record and send the response times of the pressure sensor 60 and the flame sensor 40 to the host computer 72.

[0036] This invention also provides an automatic powder injection explosion suppression test method for gas pipeline transportation. The method is applied to an automatic powder injection explosion suppression test device for gas pipeline transportation and includes: When simulating a gas pipeline fire, ultraviolet light is emitted into the test chamber of the test box 10 by activating the ultraviolet light mechanism 30. After the flame sensor 40 detects ultraviolet light in the test chamber, the flame sensor 40 sends a flame signal to the main control mechanism 70, and the main control mechanism 70 controls the automatic powder spraying explosion suppression device to start according to the flame signal. When testing the simulated high pressure inside a gas pipeline, the air filling mechanism 50 continuously pressurizes the connecting pipe 20. Pressure sensor 60 monitors the air pressure in connecting pipe 20 and sends the air pressure signal to main control mechanism 70. When main control mechanism 70 determines that the air pressure signal exceeds the preset air pressure range, main control mechanism 70 controls the automatic powder spraying explosion suppression device to start.

[0037] The method of this invention uses an ultraviolet lamp to trigger a flame sensor and an air pump to increase the pressure in the connecting pipe to trigger a pressure sensor, which can perform performance testing on the automatic powder injection explosion suppression device for gas pipeline transportation. Compared with traditional testing, the method of this invention does not require testing in a complex and potentially dangerous underground gas environment. The test can be completed on the ground, ensuring the safety and convenience of performance testing.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A kind of automatic powder spraying explosion suppression testing device of gas pipeline transportation, it is characterized in that, include: Test chamber (10), wherein the test chamber (10) has a test cavity; A connecting tube (20) is partially disposed inside the test cavity, and both ends of the connecting tube (20) pass through the two side walls of the test box (10) and extend out a predetermined distance. An ultraviolet (UV) mechanism (30) is disposed within the test cavity and is used to emit UV light within the test cavity. Multiple flame sensors (40) are disposed at the top of the test chamber. The flame sensors (40) are used to sense ultraviolet light in the test chamber and output flame signals. An inflation mechanism (50) is provided at the first end of the connecting pipe (20) and is used to input gas into the connecting pipe (20); Pressure sensor (60) is disposed at the second end of the connecting pipe (20). The pressure sensor (60) is used to monitor the gas pressure in the connecting pipe (20) and output a gas pressure signal. The main control mechanism (70) is connected to both the flame sensor (40) and the pressure sensor (60). The main control mechanism (70) is used to control the operation of the automatic powder spraying explosion suppression device according to the flame signal and the air pressure signal. The ultraviolet light mechanism (30) includes: An ultraviolet lamp (31) is mounted on the bottom of the test chamber via a mounting plate (33); Lighting control device (32), the lighting control device (32) is partially disposed at the top of the test cavity, the top of the lighting control device (32) passes through the top of the test box (10) and is disposed on its outside, the lighting control device (32) is electrically connected to the ultraviolet lamp (31) to control the ultraviolet lamp (31) to emit ultraviolet light in the test cavity. An inflation valve (21) is provided on the first end of the connecting pipe (20), and a second sealing ring (22) is provided between the inflation valve (21) and the first end of the connecting pipe (20). The inflation mechanism (50) includes: An air pump (51) is connected to the inflation valve (21) and is used to input gas into the connecting pipe (20); The air pump (51) is either a manual air pump or an automatic air pump. The main control mechanism (70) includes: The control box (71) is connected to both the flame sensor (40) and the pressure sensor (60). The control box (71) is used to receive the flame signal and the air pressure signal and send an alarm signal to the host computer (72). The host computer (72) is used to control the operation of the automatic powder spraying explosion suppression device according to the alarm signal; An explosion-proof detection controller (76) is connected to the ultraviolet light mechanism (30), the inflation mechanism (50), and the host computer (72). The host computer (72) controls the ultraviolet light mechanism (30) and the inflation mechanism (50) to start through the explosion-proof detection controller (76).

2. The automatic powder spraying explosion suppression test device for gas pipeline transportation according to claim 1, characterized in that, The lighting control device (32) includes: A button mounting base (321) is disposed on the top outer side of the test box (10); A button device (322) is disposed in the button mounting base (321) and extends a preset distance into the test cavity. The bottom of the button device (322) is electrically connected to the ultraviolet lamp (31) to control the ultraviolet lamp (31) to emit ultraviolet light in the test cavity.

3. The automatic powder injection explosion suppression testing device for gas pipeline transportation according to claim 2, characterized in that, A first sealing ring (34) is provided between the button mounting base (321) and the top of the test box (10).

4. The automatic powder injection explosion suppression testing device for gas pipeline transportation according to claim 1, characterized in that, There are two flame sensors (40). A third sealing ring (41) is provided between the flame sensor (40) and the top of the test cavity. A fourth sealing ring (61) is provided between the pressure sensor (60) and the second end of the connecting pipe (20).

5. The automatic powder spraying explosion suppression testing device for gas pipeline transportation according to claim 1, characterized in that, The control box (71) is equipped with: The controller (73) is connected to both the flame sensor (40) and the pressure sensor (60), and the controller (73) is used to receive the flame signal and the air pressure signal; An alarm module (74) is installed on the controller (73). When the alarm module (74) receives the flame signal or the air pressure signal exceeding the preset air pressure range, the alarm module (74) generates the alarm signal. The communication module (75) is also located on the controller (73). When the alarm module (74) generates the alarm signal, the communication module (75) sends the alarm signal to the host computer (72).

6. The automatic powder injection explosion suppression testing device for gas pipeline transportation according to claim 5, characterized in that, The control box (71) is equipped with an indicator light, which is connected to the controller (73). When the alarm module (74) generates the alarm signal, the controller (73) controls the indicator light to light up.

7. A method for testing the automatic powder injection explosion suppression of gas pipelines, wherein the method is applied to the automatic powder injection explosion suppression testing device for gas pipelines as described in any one of claims 1 to 6, characterized in that, The automatic powder injection explosion suppression test method for gas pipeline transportation includes: When simulating a gas pipeline fire, ultraviolet light is emitted into the test chamber of the test box (10) by turning on the ultraviolet light mechanism (30); After the flame sensor (40) detects the ultraviolet light in the test chamber, the flame sensor (40) sends the flame signal to the main control mechanism (70), and the main control mechanism (70) controls the automatic powder spraying explosion suppression device to start according to the flame signal; When testing the high pressure inside the simulated gas pipeline, the gas filling mechanism (50) continuously pressurizes the connecting pipe (20); The pressure sensor (60) monitors the air pressure in the connecting pipe (20). The pressure sensor (60) sends the air pressure signal to the main control mechanism (70). When the main control mechanism (70) determines that the air pressure signal exceeds the preset air pressure range, the main control mechanism (70) controls the automatic powder spraying explosion suppression device to start.

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