Sound velocity torch burner, elevated torch and ground torch

Abstract

The utility model discloses a sonic torch burner. The sonic torch burner comprises a Laval nozzle, a gas inlet of the Laval nozzle is connected with a gas outlet of the torch gas pipe, and a pressure regulating valve is arranged at one end, far away from the Laval nozzle, of the torch gas pipe; a flow velocity sensor for monitoring the airflow velocity is arranged at the narrow throat of the Laval nozzle; and the pressure regulating valve and the flow velocity sensor are connected with the controller. The utility model further discloses an elevated torch and a ground torch. Through the combined control of the pressure regulating valve, the flow velocity sensor and the controller, the airflow velocity at the narrow throat of the Laval nozzle is ensured to be sound velocity, so that the stable supersonic speed regulation and control of the combustible gas velocity at the outlet of the Laval nozzle are ensured, and the combustion stability is further realized.

Description

Technical Field

[0001] This utility model belongs to the field of burner technology, specifically relating to a sonic torch burner, an elevated torch, and a ground torch. Background Technology

[0002] To prevent accidents such as process runaway, fires, and overpressure ruptures in tank areas and pipelines, flare systems are typically installed to release and burn off flammable gases in the event of an accident. Additionally, flare systems also serve to burn off waste gases during routine production. Currently, most flare burners in operation use air or steam-assisted combustion, resulting in high oxidizer consumption and difficulties in cost reduction and efficiency improvement. Sonic flare burners, which achieve efficient air entrainment, mixing, and combustion by increasing the fuel gas outlet velocity, are relatively less common.

[0003] Sonic torch burners typically use Laval nozzles. To ensure stable combustion, the combustible gas velocity at the narrow throat of the Laval nozzle needs to reach the speed of sound. However, the pressure fluctuations in the existing upstream pipeline cause the airflow velocity at the narrow throat of the Laval nozzle to fluctuate, thus making it impossible to guarantee stable combustion. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a sonic torch burner.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A sonic torch burner, comprising a Laval nozzle;

[0007] The inlet of the Laval nozzle is connected to the outlet of the flare pipe, and a pressure regulating valve is installed at the end of the flare pipe away from the Laval nozzle.

[0008] A flow velocity sensor for monitoring airflow speed is installed at the narrow throat of the Laval nozzle;

[0009] The pressure regulating valve and flow rate sensor are both connected to the controller.

[0010] Preferably, the pressure regulating valve is a solenoid valve.

[0011] Preferably, an igniter is provided on the Laval nozzle.

[0012] Preferably, the igniter is connected to the controller.

[0013] Preferably, the igniter is a continuous lamp igniter, an electric spark igniter, or an electric arc igniter.

[0014] Preferably, a flame detector is provided on the Laval nozzle.

[0015] Preferably, the flame detector is connected to the controller.

[0016] Preferably, the inlet of the flare gas pipe is connected to a combustible gas pipeline, and a separator is connected to the combustible gas pipeline.

[0017] This utility model also discloses an elevated torch.

[0018] An elevated flare includes a flame stabilizer and several sonic flare burners, with the flare pipes of each sonic flare burner connected into an integral structure by a shock-absorbing bracket.

[0019] The air inlet of the flame stabilizer and the air inlet of the flare pipe in each sonic torch burner are all connected to the combustible gas pipeline.

[0020] Preferably, the combustible gas pipeline is connected to a liquid separator.

[0021] This utility model also discloses a ground torch.

[0022] A ground flare includes several sonic flare burners, wherein the air inlet of the flare gas pipe in each sonic flare burner is connected to a combustible gas pipeline.

[0023] Preferably, the combustible gas pipeline is connected to a liquid separator.

[0024] The beneficial effects of this utility model are:

[0025] (1) This utility model ensures that the airflow velocity at the narrow throat of the Laval nozzle is sonic by means of the combined control of the pressure regulating valve, the flow rate sensor and the controller, thereby ensuring the stable supersonic control of the combustible gas velocity at the outlet of the Laval nozzle, and thus achieving stable combustion.

[0026] (2) This utility model can achieve secondary ignition after flameout through the combined control of flame detector, pressure regulating valve, controller and igniter. Attached Figure Description

[0027] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0028] Figure 1 This is a schematic diagram of the structure of the sonic torch burner of this utility model;

[0029] Figure 2 This is a connection diagram of the pressure regulating valve, flow rate sensor, and controller in this utility model;

[0030] Figure 3This is a diagram showing the arrangement of the various sonic torch burners in the elevated torch of this utility model;

[0031] Figure 4 This is a diagram showing the arrangement of the various sonic torch burners in the ground torch of this utility model;

[0032] in:

[0033] 1-Laval nozzle;

[0034] 2-Flame tube;

[0035] 3-Combustible gas pipelines;

[0036] 4-Pressure regulating valve;

[0037] 5-Flow rate sensor;

[0038] 6-Controller;

[0039] 7-Shock absorber bracket;

[0040] 8-Flame stabilizer;

[0041] 9-Separating tank. Detailed Implementation

[0042] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0043] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0044] In this utility model, terms such as "upper", "lower", "bottom", and "top" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various components or elements of this utility model and do not specifically refer to any component or element in this utility model. They should not be construed as limiting this utility model.

[0045] In this utility model, terms such as "connected" and "linked" should be interpreted broadly, indicating a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be determined according to the specific circumstances, and should not be construed as a limitation of this utility model.

[0046] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0047] Example 1:

[0048] like Figure 1 As shown, a sonic torch burner includes a Laval nozzle 1; the Laval nozzle 1 has a structure that first narrows and then expands, the subsonic combustible gas from the torch pipe 2 is accelerated by the narrowing section and reaches the speed of sound at the narrow throat of the Laval nozzle 1, and then is further accelerated to supersonic speed in the expanding section.

[0049] The air inlet of the Laval nozzle 1 is connected to the air outlet of the flare pipe 2, and a pressure regulating valve 4 is provided at the end of the flare pipe 2 away from the Laval nozzle 1.

[0050] Specifically, the Laval nozzle and the flare pipe 2 are connected by welding or flange;

[0051] Flare pipe 2 is used to guide the pressure-regulated combustible gas to the position of Laval nozzle 1. It has a certain pressure-bearing capacity and the ability to withstand high-velocity gas flow. Flare pipe 2 must be reliably grounded to prevent the potential for electrostatic ignition caused by high-speed gas flow.

[0052] A flow velocity sensor 5 for monitoring airflow velocity is installed at the narrow throat of the Laval nozzle 1;

[0053] like Figure 2 As shown, the pressure regulating valve 4 and the flow rate sensor 5 are both connected to the controller 6.

[0054] In Example 1, the flow velocity sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is the speed of sound.

[0055] This application ensures that the airflow velocity at the narrow throat of the Laval nozzle 1 is sonic by means of the combined control of the pressure regulating valve 4, the flow rate sensor 5, and the controller 6, thereby ensuring stable supersonic control of the combustible gas velocity at the outlet of the Laval nozzle 1 and thus achieving stable combustion.

[0056] Example 2:

[0057] like Figure 1As shown, a sonic torch burner includes a Laval nozzle 1; the Laval nozzle 1 has a structure that first narrows and then expands, the subsonic combustible gas from the torch pipe 2 is accelerated by the narrowing section and reaches the speed of sound at the narrow throat of the Laval nozzle 1, and then is further accelerated to supersonic speed in the expanding section.

[0058] The air inlet of the Laval nozzle 1 is connected to the air outlet of the flare pipe 2, and a pressure regulating valve 4 is provided at the end of the flare pipe 2 away from the Laval nozzle 1.

[0059] Specifically, the Laval nozzle and the flare pipe 2 are connected by welding or flange;

[0060] Flare pipe 2 is used to guide the pressure-regulated combustible gas to the position of Laval nozzle 1. It has a certain pressure-bearing capacity and the ability to withstand high-velocity gas flow. Flare pipe 2 must be reliably grounded to prevent the potential for electrostatic ignition caused by high-speed gas flow.

[0061] A flow velocity sensor 5 for monitoring airflow velocity is installed at the narrow throat of the Laval nozzle 1;

[0062] like Figure 2 As shown, the pressure regulating valve 4 and the flow rate sensor 5 are both connected to the controller 6.

[0063] Preferably, the pressure regulating valve 4 is a solenoid valve, and the controller 6 can control the opening degree of the solenoid valve.

[0064] In Example 2, the flow velocity sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is the speed of sound.

[0065] This application ensures that the airflow velocity at the narrow throat of the Laval nozzle 1 is sonic by means of the combined control of the pressure regulating valve 4, the flow rate sensor 5, and the controller 6, thereby ensuring stable supersonic control of the combustible gas velocity at the outlet of the Laval nozzle 1 and thus achieving stable combustion.

[0066] Example 3:

[0067] like Figure 1 As shown, a sonic torch burner includes a Laval nozzle 1; the Laval nozzle 1 has a structure that first narrows and then expands, the subsonic combustible gas from the torch pipe 2 is accelerated by the narrowing section and reaches the speed of sound at the narrow throat of the Laval nozzle 1, and then is further accelerated to supersonic speed in the expanding section.

[0068] The air inlet of the Laval nozzle 1 is connected to the air outlet of the flare pipe 2, and a pressure regulating valve 4 is provided at the end of the flare pipe 2 away from the Laval nozzle 1.

[0069] Specifically, the Laval nozzle and the flare pipe 2 are connected by welding or flange;

[0070] Flare pipe 2 is used to guide the pressure-regulated combustible gas to the position of Laval nozzle 1. It has a certain pressure-bearing capacity and the ability to withstand high-velocity gas flow. Flare pipe 2 must be reliably grounded to prevent the potential for electrostatic ignition caused by high-speed gas flow.

[0071] A flow velocity sensor 5 for monitoring airflow velocity is installed at the narrow throat of the Laval nozzle 1;

[0072] like Figure 2 As shown, the pressure regulating valve 4 and the flow rate sensor 5 are both connected to the controller 6.

[0073] Preferably, the pressure regulating valve 4 is a solenoid valve, and the controller 6 can control the opening degree of the solenoid valve.

[0074] Preferably, an igniter is provided on the Laval nozzle 1.

[0075] In Example 3, the combustible gas is guided through the flare pipe 2 to the Laval nozzle 1 and ejected, and is ignited by the igniter to form a jet flame; the flow rate sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is sonic.

[0076] This application ensures that the airflow velocity at the narrow throat of the Laval nozzle 1 is sonic by means of the combined control of the pressure regulating valve 4, the flow rate sensor 5, and the controller 6, thereby ensuring stable supersonic control of the combustible gas velocity at the outlet of the Laval nozzle 1 and thus achieving stable combustion.

[0077] Example 4:

[0078] like Figure 1 As shown, a sonic torch burner includes a Laval nozzle 1; the Laval nozzle 1 has a structure that first narrows and then expands, the subsonic combustible gas from the torch pipe 2 is accelerated by the narrowing section and reaches the speed of sound at the narrow throat of the Laval nozzle 1, and then is further accelerated to supersonic speed in the expanding section.

[0079] The air inlet of the Laval nozzle 1 is connected to the air outlet of the flare pipe 2, and a pressure regulating valve 4 is provided at the end of the flare pipe 2 away from the Laval nozzle 1.

[0080] Specifically, the Laval nozzle and the flare pipe 2 are connected by welding or flange;

[0081] Flare pipe 2 is used to guide the pressure-regulated combustible gas to the position of Laval nozzle 1. It has a certain pressure-bearing capacity and the ability to withstand high-velocity gas flow. Flare pipe 2 must be reliably grounded to prevent the potential for electrostatic ignition caused by high-speed gas flow.

[0082] A flow velocity sensor 5 for monitoring airflow velocity is installed at the narrow throat of the Laval nozzle 1;

[0083] like Figure 2 As shown, the pressure regulating valve 4 and the flow rate sensor 5 are both connected to the controller 6.

[0084] Preferably, the pressure regulating valve 4 is a solenoid valve, and the controller 6 can control the opening degree of the solenoid valve.

[0085] Preferably, an igniter is provided on the Laval nozzle 1.

[0086] Preferably, the igniter is connected to the controller 6.

[0087] In Example 4, the combustible gas is guided through the flare pipe 2 to the Laval nozzle 1 and ejected, and is ignited by the igniter controlled by the controller 6 to form a jet flame; the flow rate sensor 5 monitors the airflow speed at the narrow throat of the Laval nozzle 1 and transmits the airflow speed information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow speed at the narrow throat of the Laval nozzle 1 is sonic.

[0088] This application ensures that the airflow velocity at the narrow throat of the Laval nozzle 1 is sonic by means of the combined control of the pressure regulating valve 4, the flow rate sensor 5, and the controller 6, thereby ensuring stable supersonic control of the combustible gas velocity at the outlet of the Laval nozzle 1 and thus achieving stable combustion.

[0089] Example 5:

[0090] like Figure 1 As shown, a sonic torch burner includes a Laval nozzle 1; the Laval nozzle 1 has a structure that first narrows and then expands, the subsonic combustible gas from the torch pipe 2 is accelerated by the narrowing section and reaches the speed of sound at the narrow throat of the Laval nozzle 1, and then is further accelerated to supersonic speed in the expanding section.

[0091] The air inlet of the Laval nozzle 1 is connected to the air outlet of the flare pipe 2, and a pressure regulating valve 4 is provided at the end of the flare pipe 2 away from the Laval nozzle 1.

[0092] Specifically, the Laval nozzle and the flare pipe 2 are connected by welding or flange;

[0093] Flare pipe 2 is used to guide the pressure-regulated combustible gas to the position of Laval nozzle 1. It has a certain pressure-bearing capacity and the ability to withstand high-velocity gas flow. Flare pipe 2 must be reliably grounded to prevent the potential for electrostatic ignition caused by high-speed gas flow.

[0094] A flow velocity sensor 5 for monitoring airflow velocity is installed at the narrow throat of the Laval nozzle 1;

[0095] like Figure 2 As shown, the pressure regulating valve 4 and the flow rate sensor 5 are both connected to the controller 6.

[0096] Preferably, the pressure regulating valve 4 is a solenoid valve, and the controller 6 can control the opening degree of the solenoid valve.

[0097] Preferably, an igniter is provided on the Laval nozzle 1.

[0098] Preferably, the igniter is connected to the controller 6.

[0099] Preferably, the igniter is a continuous lamp igniter, an electric spark igniter, or an electric arc igniter.

[0100] In Example 5, combustible gas is guided through flare pipe 2 to Laval nozzle 1 and ejected, and ignited by an igniter controlled by controller 6 to form a jet flame. The igniter can be a continuous lamp igniter, an electric spark igniter, or an electric arc igniter. Flow velocity sensor 5 monitors the airflow velocity at the narrow throat of Laval nozzle 1 and transmits the airflow velocity information to controller 6. Controller 6 controls pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of Laval nozzle 1 is sonic.

[0101] This application ensures that the airflow velocity at the narrow throat of the Laval nozzle 1 is sonic by means of the combined control of the pressure regulating valve 4, the flow rate sensor 5, and the controller 6, thereby ensuring stable supersonic control of the combustible gas velocity at the outlet of the Laval nozzle 1 and thus achieving stable combustion.

[0102] Example 6:

[0103] like Figure 1 As shown, a sonic torch burner includes a Laval nozzle 1; the Laval nozzle 1 has a structure that first narrows and then expands, the subsonic combustible gas from the torch pipe 2 is accelerated by the narrowing section and reaches the speed of sound at the narrow throat of the Laval nozzle 1, and then is further accelerated to supersonic speed in the expanding section.

[0104] The air inlet of the Laval nozzle 1 is connected to the air outlet of the flare pipe 2, and a pressure regulating valve 4 is provided at the end of the flare pipe 2 away from the Laval nozzle 1.

[0105] Specifically, the Laval nozzle and the flare pipe 2 are connected by welding or flange;

[0106] Flare pipe 2 is used to guide the pressure-regulated combustible gas to the position of Laval nozzle 1. It has a certain pressure-bearing capacity and the ability to withstand high-velocity gas flow. Flare pipe 2 must be reliably grounded to prevent the potential for electrostatic ignition caused by high-speed gas flow.

[0107] A flow velocity sensor 5 for monitoring airflow velocity is installed at the narrow throat of the Laval nozzle 1;

[0108] like Figure 2 As shown, the pressure regulating valve 4 and the flow rate sensor 5 are both connected to the controller 6.

[0109] Preferably, the pressure regulating valve 4 is a solenoid valve, and the controller 6 can control the opening degree of the solenoid valve.

[0110] Preferably, an igniter is provided on the Laval nozzle 1.

[0111] Preferably, the igniter is connected to the controller 6.

[0112] Preferably, the igniter is a continuous lamp igniter, an electric spark igniter, or an electric arc igniter.

[0113] Preferably, a flame detector is provided on the Laval nozzle 1.

[0114] Preferably, the flame detector is connected to the controller 6.

[0115] In Example 6, the combustible gas is guided through the flare pipe 2 to the Laval nozzle 1 and sprayed out, and is ignited by the igniter controlled by the controller 6 to form a jet flame. The igniter can be a continuous lamp igniter, an electric spark igniter, or an electric arc igniter.

[0116] The flow rate sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is sonic, at which point the flame reaches stability.

[0117] When the flame detector detects a flameout event, the controller 6 controls the pressure regulating valve 4 to reduce the flow and speed of the combustible gas and starts the igniter for secondary ignition.

[0118] This application ensures that the airflow velocity at the narrow throat of the Laval nozzle 1 is sonic by means of the combined control of the pressure regulating valve 4, the flow rate sensor 5, and the controller 6, thereby ensuring stable supersonic control of the combustible gas velocity at the outlet of the Laval nozzle 1 and thus achieving stable combustion.

[0119] This application achieves secondary ignition after flameout through the combined control of a flame detector, a pressure regulating valve, a controller 6, and an igniter.

[0120] Example 7:

[0121] like Figure 1 As shown, a sonic torch burner includes a Laval nozzle 1; the Laval nozzle 1 has a structure that first narrows and then expands, the subsonic combustible gas from the torch pipe 2 is accelerated by the narrowing section and reaches the speed of sound at the narrow throat of the Laval nozzle 1, and then is further accelerated to supersonic speed in the expanding section.

[0122] The air inlet of the Laval nozzle 1 is connected to the air outlet of the flare pipe 2, and a pressure regulating valve 4 is provided at the end of the flare pipe 2 away from the Laval nozzle 1.

[0123] Specifically, the Laval nozzle 1 and the flare pipe 2 are connected by welding or flange;

[0124] Flare pipe 2 is used to guide the pressure-regulated combustible gas to the position of Laval nozzle 1. It has a certain pressure-bearing capacity and the ability to withstand high-velocity gas flow. Flare pipe 2 must be reliably grounded to prevent the potential for electrostatic ignition caused by high-speed gas flow.

[0125] A flow velocity sensor 5 for monitoring airflow velocity is installed at the narrow throat of the Laval nozzle 1;

[0126] like Figure 2 As shown, the pressure regulating valve 4 and the flow rate sensor 5 are both connected to the controller 6.

[0127] Preferably, the pressure regulating valve 4 is a solenoid valve, and the controller 6 can control the opening degree of the solenoid valve.

[0128] Preferably, an igniter is provided on the Laval nozzle 1.

[0129] Preferably, the igniter is connected to the controller 6.

[0130] Preferably, the igniter is a continuous lamp igniter, an electric spark igniter, or an electric arc igniter.

[0131] Preferably, a flame detector is provided on the Laval nozzle 1.

[0132] Preferably, the flame detector is connected to the controller 6.

[0133] Preferably, the inlet of the flare gas pipe 2 is connected to the combustible gas pipeline 3, and the combustible gas pipeline 3 is connected to a liquid separator 9.

[0134] Preferably, the flare gas pipe 2 and the combustible gas pipeline 3 are connected by welding or flange.

[0135] A liquid separator 9 is added to the combustible gas pipeline 3 to prevent liquid components from entering the Laval nozzle 1 and causing a fire rain accident. The liquid separator is existing technology, and its specific structure will not be described in detail here.

[0136] In Example 7, the combustible gas is guided through the flare pipe 2 to the Laval nozzle 1 and sprayed out, and is ignited by the igniter controlled by the controller 6 to form a jet flame. The igniter can be a continuous lamp igniter, an electric spark igniter, or an electric arc igniter.

[0137] The flow rate sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is sonic, at which point the flame reaches stability.

[0138] When the flame detector detects a flameout event, the controller 6 controls the pressure regulating valve 4 to reduce the flow and speed of the combustible gas and starts the igniter for secondary ignition.

[0139] This application ensures that the airflow velocity at the narrow throat of the Laval nozzle 1 is sonic by means of the combined control of the pressure regulating valve 4, the flow rate sensor 5, and the controller 6, thereby ensuring stable supersonic control of the combustible gas velocity at the outlet of the Laval nozzle 1 and thus achieving stable combustion.

[0140] This application achieves secondary ignition after flameout through the combined control of a flame detector, pressure regulating valve 4, controller 6, and igniter.

[0141] Example 8:

[0142] An elevated torch includes a flame stabilizer 8 and several sonic torch burners;

[0143] The sonic torch burner includes a Laval nozzle 1; the Laval nozzle 1 has a structure that first narrows and then expands. The subsonic combustible gas from the torch pipe 2 is accelerated by the narrowing section and reaches the speed of sound at the narrow throat of the Laval nozzle 1, and then further accelerated to supersonic speed in the expanding section.

[0144] The air inlet of the Laval nozzle 1 is connected to the air outlet of the flare pipe 2, and a pressure regulating valve 4 is provided at the end of the flare pipe 2 away from the Laval nozzle 1.

[0145] Specifically, the Laval nozzle and the flare pipe 2 are connected by welding or flange;

[0146] Flare pipe 2 is used to guide the pressure-regulated combustible gas to the position of Laval nozzle 1. It has a certain pressure-bearing capacity and the ability to withstand high-velocity gas flow. Flare pipe 2 must be reliably grounded to prevent the potential for electrostatic ignition caused by high-speed gas flow.

[0147] A flow velocity sensor 5 for monitoring airflow velocity is installed at the narrow throat of the Laval nozzle 1;

[0148] like Figure 2 As shown, the pressure regulating valve 4 and the flow rate sensor 5 are both connected to the controller 6;

[0149] The flow rate sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is the speed of sound.

[0150] The flare pipes 2 of each sonic flare burner are connected into a whole structure by the shock-absorbing bracket 7;

[0151] The air inlet of the flame stabilizer 8 and the air inlet of the flare pipe 2 in each sonic torch burner are connected to the combustible gas pipeline 3.

[0152] The arrangement of the various sonic torch burners in the elevated torch is as follows: Figure 3 As shown.

[0153] The flame stabilizer 8 and the shock absorber bracket 7 are existing technologies, and their specific structures will not be described in detail here.

[0154] In Example 8, the vibration damping bracket 7 is used to overcome the vibration during the operation of the flare. During operation, the combustible gas from the combustible gas pipeline 3 is evenly distributed to each sonic flare burner. The flow velocity sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is sonic.

[0155] Example 9:

[0156] An elevated torch includes a flame stabilizer 8 and several sonic torch burners;

[0157] The sonic torch burner includes a Laval nozzle 1; the Laval nozzle 1 has a structure that first narrows and then expands. The subsonic combustible gas from the torch pipe 2 is accelerated by the narrowing section and reaches the speed of sound at the narrow throat of the Laval nozzle 1, and then further accelerated to supersonic speed in the expanding section.

[0158] The air inlet of the Laval nozzle 1 is connected to the air outlet of the flare pipe 2, and a pressure regulating valve 4 is provided at the end of the flare pipe 2 away from the Laval nozzle 1.

[0159] Specifically, the Laval nozzle and the flare pipe 2 are connected by welding or flange;

[0160] Flare pipe 2 is used to guide the pressure-regulated combustible gas to the position of Laval nozzle 1. It has a certain pressure-bearing capacity and the ability to withstand high-velocity gas flow. Flare pipe 2 must be reliably grounded to prevent the potential for electrostatic ignition caused by high-speed gas flow.

[0161] A flow velocity sensor 5 for monitoring airflow velocity is installed at the narrow throat of the Laval nozzle 1;

[0162] like Figure 2 As shown, the pressure regulating valve 4 and the flow rate sensor 5 are both connected to the controller 6;

[0163] The flow rate sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is the speed of sound.

[0164] The flare pipes 2 of each sonic flare burner are connected into a whole structure by the shock-absorbing bracket 7;

[0165] The air inlet of the flame stabilizer 8 and the air inlet of the flare pipe 2 in each sonic torch burner are connected to the combustible gas pipeline 3.

[0166] The arrangement of the various sonic torch burners in the elevated torch is as follows: Figure 3 As shown.

[0167] The flame stabilizer 8 and the shock absorber bracket 7 are existing technologies, and their specific structures will not be described in detail here.

[0168] Preferably, the pressure regulating valve 4 is a solenoid valve, and the controller 6 can control the opening degree of the solenoid valve.

[0169] Preferably, an igniter is provided on the Laval nozzle 1.

[0170] In Example 9, the vibration damping bracket 7 is used to overcome vibrations during the torch operation. During operation, the combustible gas from the combustible gas pipeline 3 is evenly distributed to each sonic torch burner. The combustible gas is guided through the torch gas pipe 2 to the Laval nozzle 1 and ejected, where it is ignited by the igniter to form a jet flame. The flow rate sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is sonic.

[0171] Example 10:

[0172] An elevated torch includes a flame stabilizer 8 and several sonic torch burners;

[0173] The sonic torch burner includes a Laval nozzle 1; the Laval nozzle 1 has a structure that first narrows and then expands. The subsonic combustible gas from the torch pipe 2 is accelerated by the narrowing section and reaches the speed of sound at the narrow throat of the Laval nozzle 1, and then further accelerated to supersonic speed in the expanding section.

[0174] The air inlet of the Laval nozzle 1 is connected to the air outlet of the flare pipe 2, and a pressure regulating valve 4 is provided at the end of the flare pipe 2 away from the Laval nozzle 1.

[0175] Specifically, the Laval nozzle and the flare pipe 2 are connected by welding or flange;

[0176] Flare pipe 2 is used to guide the pressure-regulated combustible gas to the position of Laval nozzle 1. It has a certain pressure-bearing capacity and the ability to withstand high-velocity gas flow. Flare pipe 2 must be reliably grounded to prevent the potential for electrostatic ignition caused by high-speed gas flow.

[0177] A flow velocity sensor 5 for monitoring airflow velocity is installed at the narrow throat of the Laval nozzle 1;

[0178] like Figure 2 As shown, the pressure regulating valve 4 and the flow rate sensor 5 are both connected to the controller 6;

[0179] The flow rate sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is the speed of sound.

[0180] The flare pipes 2 of each sonic flare burner are connected into a whole structure by the shock-absorbing bracket 7;

[0181] The air inlet of the flame stabilizer 8 and the air inlet of the flare pipe 2 in each sonic torch burner are both connected to the combustible gas pipeline 3.

[0182] The arrangement of the various sonic torch burners in the elevated torch is as follows: Figure 3 As shown.

[0183] The flame stabilizer 8 and the shock absorber bracket 7 are existing technologies, and their specific structures will not be described in detail here.

[0184] Preferably, the pressure regulating valve 4 is a solenoid valve, and the controller 6 can control the opening degree of the solenoid valve.

[0185] Preferably, an igniter is provided on the Laval nozzle 1.

[0186] Preferably, the igniter is connected to the controller 6.

[0187] In Example 10, the vibration damping bracket 7 is used to overcome vibrations during the torch operation. During operation, the combustible gas from the combustible gas pipeline 3 is evenly distributed to each sonic torch burner. The combustible gas is guided through the torch gas pipe 2 to the Laval nozzle 1 and ejected, and is ignited by the igniter controlled by the controller 6 to form a jet flame. The flow rate sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is sonic.

[0188] Example 11:

[0189] An elevated torch includes a flame stabilizer 8 and several sonic torch burners;

[0190] The sonic torch burner includes a Laval nozzle 1; the Laval nozzle 1 has a structure that first narrows and then expands. The subsonic combustible gas from the torch pipe 2 is accelerated by the narrowing section and reaches the speed of sound at the narrow throat of the Laval nozzle 1, and then further accelerated to supersonic speed in the expanding section.

[0191] The air inlet of the Laval nozzle 1 is connected to the air outlet of the flare pipe 2, and a pressure regulating valve 4 is provided at the end of the flare pipe 2 away from the Laval nozzle 1.

[0192] Specifically, the Laval nozzle and the flare pipe 2 are connected by welding or flange;

[0193] Flare pipe 2 is used to guide the pressure-regulated combustible gas to the position of Laval nozzle 1. It has a certain pressure-bearing capacity and the ability to withstand high-velocity gas flow. Flare pipe 2 must be reliably grounded to prevent the potential for electrostatic ignition caused by high-speed gas flow.

[0194] A flow velocity sensor 5 for monitoring airflow velocity is installed at the narrow throat of the Laval nozzle 1;

[0195] like Figure 2 As shown, the pressure regulating valve 4 and the flow rate sensor 5 are both connected to the controller 6;

[0196] The flow rate sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is the speed of sound.

[0197] The flare pipes 2 of each sonic flare burner are connected into a whole structure by the shock-absorbing bracket 7;

[0198] The air inlet of the flame stabilizer 8 and the air inlet of the flare pipe 2 in each sonic torch burner are both connected to the combustible gas pipeline 3.

[0199] The arrangement of the various sonic torch burners in the elevated torch is as follows: Figure 3 As shown.

[0200] The flame stabilizer 8 and the shock absorber bracket 7 are existing technologies, and their specific structures will not be described in detail here.

[0201] Preferably, the pressure regulating valve 4 is a solenoid valve, and the controller 6 can control the opening degree of the solenoid valve.

[0202] Preferably, an igniter is provided on the Laval nozzle 1.

[0203] Preferably, the igniter is connected to the controller 6.

[0204] Preferably, the igniter is a continuous lamp igniter, an electric spark igniter, or an electric arc igniter.

[0205] In Example 11, the vibration damping bracket 7 is used to overcome vibrations during the torch operation. During operation, the combustible gas from the combustible gas pipeline 3 is evenly distributed to each sonic torch burner. The combustible gas is guided through the torch gas pipe 2 to the Laval nozzle 1 and ejected, and is ignited by the igniter controlled by the controller 6 to form a jet flame. The igniter can be a continuous lamp igniter, an electric spark igniter, or an electric arc igniter. The flow velocity sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is sonic.

[0206] Example 12:

[0207] An elevated torch includes a flame stabilizer 8 and several sonic torch burners;

[0208] The sonic torch burner includes a Laval nozzle 1; the Laval nozzle 1 has a structure that first narrows and then expands. The subsonic combustible gas from the torch pipe 2 is accelerated by the narrowing section and reaches the speed of sound at the narrow throat of the Laval nozzle 1, and then further accelerated to supersonic speed in the expanding section.

[0209] The air inlet of the Laval nozzle 1 is connected to the air outlet of the flare pipe 2, and a pressure regulating valve 4 is provided at the end of the flare pipe 2 away from the Laval nozzle 1.

[0210] Specifically, the Laval nozzle and the flare pipe 2 are connected by welding or flange;

[0211] Flare pipe 2 is used to guide the pressure-regulated combustible gas to the position of Laval nozzle 1. It has a certain pressure-bearing capacity and the ability to withstand high-velocity gas flow. Flare pipe 2 must be reliably grounded to prevent the potential for electrostatic ignition caused by high-speed gas flow.

[0212] A flow velocity sensor 5 for monitoring airflow velocity is installed at the narrow throat of the Laval nozzle 1;

[0213] like Figure 2 As shown, the pressure regulating valve 4 and the flow rate sensor 5 are both connected to the controller 6;

[0214] The flow rate sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is the speed of sound.

[0215] The flare pipes 2 of each sonic flare burner are connected into a whole structure by the shock-absorbing bracket 7;

[0216] The air inlet of the flame stabilizer 8 and the air inlet of the flare pipe 2 in each sonic torch burner are connected to the combustible gas pipeline 3.

[0217] The arrangement of the various sonic torch burners in the elevated torch is as follows: Figure 3 As shown.

[0218] The flame stabilizer 8 and the shock absorber bracket 7 are existing technologies, and their specific structures will not be described in detail here.

[0219] Preferably, the pressure regulating valve 4 is a solenoid valve, and the controller 6 can control the opening degree of the solenoid valve.

[0220] Preferably, an igniter is provided on the Laval nozzle 1.

[0221] Preferably, the igniter is connected to the controller 6.

[0222] Preferably, the igniter is a continuous lamp igniter, an electric spark igniter, or an electric arc igniter.

[0223] Preferably, a flame detector is provided on the Laval nozzle 1.

[0224] Preferably, the flame detector is connected to the controller 6.

[0225] In Example 12, the shock-absorbing bracket 7 is used to overcome the vibration during the operation of the flare. During operation, the combustible gas from the combustible gas pipeline 3 is evenly distributed to each sonic flare burner. The combustible gas is guided through the flare gas pipe 2 to the Laval nozzle 1 and ejected, and is ignited by the igniter controlled by the controller 6 to form a jet flame. The igniter can be a continuous lamp igniter, an electric spark igniter, or an electric arc igniter.

[0226] The flow rate sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is sonic, at which point the flame reaches stability.

[0227] When the flame detector detects a flameout event, the controller 6 controls the pressure regulating valve 4 to reduce the flow and speed of the combustible gas and starts the igniter for secondary ignition.

[0228] Example 13:

[0229] An elevated torch includes a flame stabilizer 8 and several sonic torch burners;

[0230] The sonic torch burner includes a Laval nozzle 1; the Laval nozzle 1 has a structure that first narrows and then expands. The subsonic combustible gas from the torch pipe 2 is accelerated by the narrowing section and reaches the speed of sound at the narrow throat of the Laval nozzle 1, and then further accelerated to supersonic speed in the expanding section.

[0231] The air inlet of the Laval nozzle 1 is connected to the air outlet of the flare pipe 2, and a pressure regulating valve 4 is provided at the end of the flare pipe 2 away from the Laval nozzle 1.

[0232] Specifically, the Laval nozzle and the flare pipe 2 are connected by welding or flange;

[0233] Flare pipe 2 is used to guide the pressure-regulated combustible gas to the position of Laval nozzle 1. It has a certain pressure-bearing capacity and the ability to withstand high-velocity gas flow. Flare pipe 2 must be reliably grounded to prevent the potential for electrostatic ignition caused by high-speed gas flow.

[0234] A flow velocity sensor 5 for monitoring airflow velocity is installed at the narrow throat of the Laval nozzle 1;

[0235] like Figure 2 As shown, the pressure regulating valve 4 and the flow rate sensor 5 are both connected to the controller 6;

[0236] The flow rate sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is the speed of sound.

[0237] The flare pipes 2 of each sonic flare burner are connected into a whole structure by the shock-absorbing bracket 7;

[0238] The air inlet of the flame stabilizer 8 and the air inlet of the flare pipe 2 in each sonic torch burner are connected to the combustible gas pipeline 3.

[0239] The arrangement of the various sonic torch burners in the elevated torch is as follows: Figure 3 As shown.

[0240] The flame stabilizer 8 and the shock absorber bracket 7 are existing technologies, and their specific structures will not be described in detail here.

[0241] Preferably, the pressure regulating valve 4 is a solenoid valve, and the controller 6 can control the opening degree of the solenoid valve.

[0242] Preferably, an igniter is provided on the Laval nozzle 1.

[0243] Preferably, the igniter is connected to the controller 6.

[0244] Preferably, the igniter is a continuous lamp igniter, an electric spark igniter, or an electric arc igniter.

[0245] Preferably, a flame detector is provided on the Laval nozzle 1.

[0246] Preferably, the flame detector is connected to the controller 6.

[0247] Preferably, the combustible gas pipeline 3 is connected to a liquid separator 9.

[0248] A liquid separator 9 is added to the combustible gas pipeline 3 to prevent liquid components from entering the Laval nozzle 1 and causing a fire rain accident. The liquid separator is existing technology, and its specific structure will not be described in detail here.

[0249] In Example 13, the shock-absorbing bracket 7 is used to overcome the vibration during the operation of the flare. During operation, the combustible gas from the combustible gas pipeline 3 is evenly distributed to each sonic flare burner. The combustible gas is guided to the Laval nozzle 1 through the flare gas pipe 2 and ignited by the igniter controlled by the controller 6 to form a jet flame. The igniter can be a continuous lamp igniter, an electric spark igniter, or an electric arc igniter.

[0250] The flow rate sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is sonic, at which point the flame reaches stability.

[0251] When the flame detector detects a flameout event, the controller 6 controls the pressure regulating valve 4 to reduce the flow and speed of the combustible gas and starts the igniter for secondary ignition.

[0252] Example 14:

[0253] A ground torch, comprising several sonic torch burners;

[0254] The sonic torch burner includes a Laval nozzle 1; the Laval nozzle 1 has a structure that first narrows and then expands. The subsonic combustible gas from the torch pipe 2 is accelerated by the narrowing section and reaches the speed of sound at the narrow throat of the Laval nozzle 1, and then further accelerated to supersonic speed in the expanding section.

[0255] The air inlet of the Laval nozzle 1 is connected to the air outlet of the flare pipe 2, and a pressure regulating valve 4 is provided at the end of the flare pipe 2 away from the Laval nozzle 1.

[0256] Specifically, the Laval nozzle and the flare pipe 2 are connected by welding or flange;

[0257] Flare pipe 2 is used to guide the pressure-regulated combustible gas to the position of Laval nozzle 1. It has a certain pressure-bearing capacity and the ability to withstand high-velocity gas flow. Flare pipe 2 must be reliably grounded to prevent the potential for electrostatic ignition caused by high-speed gas flow.

[0258] A flow velocity sensor 5 for monitoring airflow velocity is installed at the narrow throat of the Laval nozzle 1;

[0259] like Figure 2 As shown, the pressure regulating valve 4 and the flow rate sensor 5 are both connected to the controller 6;

[0260] The flow rate sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is the speed of sound.

[0261] In each sonic torch burner, the inlet of the torch gas pipe 2 is connected to the combustible gas pipeline 3.

[0262] The arrangement of the various sonic torch burners in the ground torch is as follows: Figure 4 As shown.

[0263] In Example 14, the combustible gas from the combustible gas pipeline 3 is distributed to each sonic torch burner. The flow rate sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is sonic.

[0264] Example 15:

[0265] A ground torch, comprising several sonic torch burners;

[0266] The sonic torch burner includes a Laval nozzle 1; the Laval nozzle 1 has a structure that first narrows and then expands. The subsonic combustible gas from the torch pipe 2 is accelerated by the narrowing section and reaches the speed of sound at the narrow throat of the Laval nozzle 1, and then further accelerated to supersonic speed in the expanding section.

[0267] The air inlet of the Laval nozzle 1 is connected to the air outlet of the flare pipe 2, and a pressure regulating valve 4 is provided at the end of the flare pipe 2 away from the Laval nozzle 1.

[0268] Specifically, the Laval nozzle and the flare pipe 2 are connected by welding or flange;

[0269] Flare pipe 2 is used to guide the pressure-regulated combustible gas to the position of Laval nozzle 1. It has a certain pressure-bearing capacity and the ability to withstand high-velocity gas flow. Flare pipe 2 must be reliably grounded to prevent the potential for electrostatic ignition caused by high-speed gas flow.

[0270] A flow velocity sensor 5 for monitoring airflow velocity is installed at the narrow throat of the Laval nozzle 1;

[0271] like Figure 2 As shown, the pressure regulating valve 4 and the flow rate sensor 5 are both connected to the controller 6;

[0272] The flow rate sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is the speed of sound.

[0273] In each sonic torch burner, the inlet of the torch gas pipe 2 is connected to the combustible gas pipeline 3.

[0274] The arrangement of the various sonic torch burners in the ground torch is as follows: Figure 4 As shown.

[0275] Preferably, the pressure regulating valve 4 is a solenoid valve, and the controller 6 can control the opening degree of the solenoid valve.

[0276] Preferably, an igniter is provided on the Laval nozzle 1.

[0277] Preferably, the igniter is connected to the controller 6.

[0278] In Example 15, the combustible gas from the combustible gas pipeline 3 is distributed to each sonic torch burner. The combustible gas is guided through the torch gas pipe 2 to the Laval nozzle 1 and ejected, and is ignited by the igniter controlled by the controller 6 to form a jet flame. The flow rate sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is sonic.

[0279] Example 16:

[0280] A ground torch, comprising several sonic torch burners;

[0281] The sonic torch burner includes a Laval nozzle 1; the Laval nozzle 1 has a structure that first narrows and then expands. The subsonic combustible gas from the torch pipe 2 is accelerated by the narrowing section and reaches the speed of sound at the narrow throat of the Laval nozzle 1, and then further accelerated to supersonic speed in the expanding section.

[0282] The air inlet of the Laval nozzle 1 is connected to the air outlet of the flare pipe 2, and a pressure regulating valve 4 is provided at the end of the flare pipe 2 away from the Laval nozzle 1.

[0283] Specifically, the Laval nozzle and the flare pipe 2 are connected by welding or flange;

[0284] Flare pipe 2 is used to guide the pressure-regulated combustible gas to the position of Laval nozzle 1. It has a certain pressure-bearing capacity and the ability to withstand high-velocity gas flow. Flare pipe 2 must be reliably grounded to prevent the potential for electrostatic ignition caused by high-speed gas flow.

[0285] A flow velocity sensor 5 for monitoring airflow velocity is installed at the narrow throat of the Laval nozzle 1;

[0286] like Figure 2 As shown, the pressure regulating valve 4 and the flow rate sensor 5 are both connected to the controller 6;

[0287] The flow rate sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is the speed of sound.

[0288] In each sonic torch burner, the inlet of the torch gas pipe 2 is connected to the combustible gas pipeline 3.

[0289] The arrangement of the various sonic torch burners in the ground torch is as follows: Figure 4 As shown.

[0290] Preferably, the pressure regulating valve 4 is a solenoid valve, and the controller 6 can control the opening degree of the solenoid valve.

[0291] Preferably, an igniter is provided on the Laval nozzle 1.

[0292] Preferably, the igniter is connected to the controller 6.

[0293] Preferably, the igniter is a continuous lamp igniter, an electric spark igniter, or an electric arc igniter.

[0294] In Example 16, the combustible gas from the combustible gas pipeline 3 is distributed to each sonic torch burner. The combustible gas is guided through the torch gas pipe 2 to the Laval nozzle 1 and ejected, and is ignited by the igniter controlled by the controller 6 to form a jet flame. The igniter can be a continuous lamp igniter, an electric spark igniter, or an electric arc igniter. The flow velocity sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is sonic.

[0295] Example 17:

[0296] A ground torch, comprising several sonic torch burners;

[0297] The sonic torch burner includes a Laval nozzle 1; the Laval nozzle 1 has a structure that first narrows and then expands. The subsonic combustible gas from the torch pipe 2 is accelerated by the narrowing section and reaches the speed of sound at the narrow throat of the Laval nozzle 1, and then further accelerated to supersonic speed in the expanding section.

[0298] The air inlet of the Laval nozzle 1 is connected to the air outlet of the flare pipe 2, and a pressure regulating valve 4 is provided at the end of the flare pipe 2 away from the Laval nozzle 1.

[0299] Specifically, the Laval nozzle and the flare pipe 2 are connected by welding or flange;

[0300] Flare pipe 2 is used to guide the pressure-regulated combustible gas to the position of Laval nozzle 1. It has a certain pressure-bearing capacity and the ability to withstand high-velocity gas flow. Flare pipe 2 must be reliably grounded to prevent the potential for electrostatic ignition caused by high-speed gas flow.

[0301] A flow velocity sensor 5 for monitoring airflow velocity is installed at the narrow throat of the Laval nozzle 1;

[0302] like Figure 2 As shown, the pressure regulating valve 4 and the flow rate sensor 5 are both connected to the controller 6;

[0303] The flow rate sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is the speed of sound.

[0304] In each sonic torch burner, the inlet of the torch gas pipe 2 is connected to the combustible gas pipeline 3.

[0305] The arrangement of the various sonic torch burners in the ground torch is as follows: Figure 4 As shown.

[0306] Preferably, the pressure regulating valve 4 is a solenoid valve, and the controller 6 can control the opening degree of the solenoid valve.

[0307] Preferably, an igniter is provided on the Laval nozzle 1.

[0308] Preferably, the igniter is connected to the controller 6.

[0309] Preferably, the igniter is a continuous lamp igniter, an electric spark igniter, or an electric arc igniter.

[0310] Preferably, a flame detector is provided on the Laval nozzle 1.

[0311] Preferably, the flame detector is connected to the controller 6.

[0312] In Example 17, the combustible gas from the combustible gas pipeline 3 is distributed to each sonic torch burner. The combustible gas is guided to the Laval nozzle 1 through the torch gas pipe 2 and ignited by the igniter controlled by the controller 6 to form a jet flame. The igniter can be a continuous lamp igniter, an electric spark igniter, or an electric arc igniter.

[0313] The flow rate sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is sonic, at which point the flame reaches stability.

[0314] When the flame detector detects a flameout event, the controller 6 controls the pressure regulating valve 4 to reduce the flow and speed of the combustible gas and starts the igniter for secondary ignition.

[0315] Example 18:

[0316] A ground torch, comprising several sonic torch burners;

[0317] The sonic torch burner includes a Laval nozzle 1; the Laval nozzle 1 has a structure that first narrows and then expands. The subsonic combustible gas from the torch pipe 2 is accelerated by the narrowing section and reaches the speed of sound at the narrow throat of the Laval nozzle 1, and then further accelerated to supersonic speed in the expanding section.

[0318] The air inlet of the Laval nozzle 1 is connected to the air outlet of the flare pipe 2, and a pressure regulating valve 4 is provided at the end of the flare pipe 2 away from the Laval nozzle 1.

[0319] Specifically, the Laval nozzle and the flare pipe 2 are connected by welding or flange;

[0320] Flare pipe 2 is used to guide the pressure-regulated combustible gas to the position of Laval nozzle 1. It has a certain pressure-bearing capacity and the ability to withstand high-velocity gas flow. Flare pipe 2 must be reliably grounded to prevent the potential for electrostatic ignition caused by high-speed gas flow.

[0321] A flow velocity sensor 5 for monitoring airflow velocity is installed at the narrow throat of the Laval nozzle 1;

[0322] like Figure 2 As shown, the pressure regulating valve 4 and the flow rate sensor 5 are both connected to the controller 6;

[0323] The flow rate sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is the speed of sound.

[0324] In each sonic torch burner, the inlet of the torch gas pipe 2 is connected to the combustible gas pipeline 3.

[0325] The arrangement of the various sonic torch burners in the ground torch is as follows: Figure 4 As shown.

[0326] Preferably, the pressure regulating valve 4 is a solenoid valve, and the controller 6 can control the opening degree of the solenoid valve.

[0327] Preferably, an igniter is provided on the Laval nozzle 1.

[0328] Preferably, the igniter is connected to the controller 6.

[0329] Preferably, the igniter is a continuous lamp igniter, an electric spark igniter, or an electric arc igniter.

[0330] Preferably, a flame detector is provided on the Laval nozzle 1.

[0331] Preferably, the flame detector is connected to the controller 6.

[0332] Preferably, the combustible gas pipeline 3 is connected to a liquid separator 9.

[0333] A liquid separator 9 is added to the combustible gas pipeline 3 to prevent liquid components from entering the Laval nozzle 1 and causing a fire rain accident. The liquid separator is existing technology, and its specific structure will not be described in detail here.

[0334] In Example 18, the combustible gas from the combustible gas pipeline 3 is distributed to each sonic torch burner. The combustible gas is guided to the Laval nozzle 1 through the torch gas pipe 2 and ignited by the igniter controlled by the controller 6 to form a jet flame. The igniter can be a continuous lamp igniter, an electric spark igniter, or an electric arc igniter.

[0335] The flow rate sensor 5 monitors the airflow velocity at the narrow throat of the Laval nozzle 1 and transmits the airflow velocity information to the controller 6. The controller 6 controls the pressure regulating valve 4 to adjust the combustible gas pressure to ensure that the airflow velocity at the narrow throat of the Laval nozzle 1 is sonic, at which point the flame reaches stability.

[0336] When the flame detector detects a flameout event, the controller 6 controls the pressure regulating valve 4 to reduce the flow and speed of the combustible gas and starts the igniter for secondary ignition.

[0337] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, they are not intended to limit the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the protection scope of the present utility model.

Claims

1. A sonic torch burner, comprising a Laval nozzle; characterized in that, The inlet of the Laval nozzle is connected to the outlet of the flare pipe, and a pressure regulating valve is installed at the end of the flare pipe away from the Laval nozzle. A flow velocity sensor for monitoring airflow speed is installed at the narrow throat of the Laval nozzle; The pressure regulating valve and flow rate sensor are both connected to the controller.

2. The sonic torch burner as described in claim 1, characterized in that, The pressure regulating valve is a solenoid valve.

3. The sonic torch burner as described in claim 1, characterized in that, An igniter is installed on the Laval nozzle.

4. The sonic torch burner as described in claim 3, characterized in that, The igniter is connected to the controller.

5. The sonic torch burner as described in claim 3, characterized in that, The igniter is a continuous lamp igniter, an electric spark igniter, or an electric arc igniter.

6. The sonic torch burner as described in claim 4, characterized in that, A flame detector is installed on the Laval nozzle.

7. The sonic torch burner as described in claim 6, characterized in that, The flame detector is connected to the controller.

8. The sonic torch burner as described in claim 1, characterized in that, The inlet of the flare gas pipe is connected to a combustible gas pipeline, and a separator is connected to the combustible gas pipeline.

9. An elevated torch, characterized in that, It includes a flame stabilizer and several sonic torch burners as described in any one of claims 1 to 7, wherein the torch pipes of each sonic torch burner are connected into an integral structure by a shock-absorbing bracket. The air inlet of the flame stabilizer and the air inlet of the flare pipe in each sonic torch burner are all connected to the combustible gas pipeline.

10. The elevated flare as described in claim 9, characterized in that, A separator is connected to the combustible gas pipeline.

11. A ground torch, characterized in that, It includes several sonic torch burners as described in any one of claims 1 to 7, wherein the air inlet of the torch gas pipe in each sonic torch burner is connected to a combustible gas pipeline.

12. The ground torch as described in claim 11, characterized in that, A separator is connected to the combustible gas pipeline.

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