Homologous torch gas energy-saving type ignition device

Abstract

The utility model provides a kind of homologous flare gas energy-saving type ignition device, it is mainly related to industrial ignition equipment technical field.A kind of homologous flare gas energy-saving type ignition device, including gas branch pipe, the gas branch pipe end portion fixed setting protective cover, the gas branch pipe other end fixed setting air inlet pipe, the air inlet pipe inside coaxial heart setting gas pipe, the protective cover bottom fixed setting protection pipe, the protective cover inside fixed setting heating body, thermocouple, the protection pipe inside is provided with heating body power cord, thermocouple cable, the thermocouple cable other end is connected with the control power supply box of outside temperature feedback.The utility model has the beneficial effect that: using silicon-carbon heating rod or silicon-molybdenum heating rod as heating body, can stable output high temperature after rapid heating, cooperate with the spiral lug design of gas branch pipe end portion, airflow is rectified and converges and is in full contact with high-temperature heating body, can reach fuel ignition point quickly, guarantee flare gas stable ignition.

Description

Technical Field

[0001] This utility model mainly relates to the field of industrial ignition equipment technology, specifically an energy-saving ignition device for homogeneous flare gas. Background Technology

[0002] Ignition equipment is widely used in industrial waste gas incineration, especially in various industrial flares, industrial burners, and waste gas incinerators. Many fields, such as metallurgy, petrochemicals, coal chemicals, mining, and municipal waste treatment, have industrial flares. The reliable operation of industrial flares is an effective means of preventing air pollution and a crucial safety and environmental protection device for normal enterprise operation; ignition equipment plays a key role in this. Currently, most ignition equipment used in industrial flares in my country is high-pressure, high-energy ignition device. Although it has been used for many years, it has revealed many shortcomings to varying degrees.

[0003] 1. Firstly, the reliability of ignition is difficult to guarantee, and the ignition success rate is low. The flame needs a suitable air-fuel ratio to burn. Most of the combustion parts of industrial torches are at high altitudes, where the environment is harsh and variable, which can easily cause the ignition equipment to malfunction.

[0004] 2. Secondly, the current ignition equipment (also known as the torch lamp) uses combustible gas to ignite the torch in a constant-burning manner. In this constant-burning mode, the ignition equipment consumes gas continuously, resulting in a large gas consumption and failing to achieve energy-saving effects. Utility Model Content

[0005] To achieve the above objectives, this utility model employs the following technical solution:

[0006] An energy-saving ignition device for homogeneous flare gas includes a gas branch pipe, a protective cover fixedly installed at one end of the gas branch pipe, an air inlet pipe fixedly installed at the other end of the gas branch pipe, a gas pipe coaxially installed inside the air inlet pipe, a protective tube fixedly installed at the bottom of the protective cover, a heating element and a thermocouple fixedly installed inside the protective cover, and a power cord for the heating element and a cable for the thermocouple installed inside the protective tube, which are electrically connected to the heating element and the thermocouple respectively. The other end of the thermocouple cable is connected to an external temperature feedback control power supply box.

[0007] The protective cover has through holes arranged in an array. The protective tube and the gas branch tube are arranged parallel to each other and connected by two connecting plates. The two connecting plates are fixed by several bolts and nuts.

[0008] The gas branch pipe is fixedly connected to the inner wall of the protective cover, and spiral protrusions are fixedly arranged in an array on the inner wall of the gas branch pipe near the end of the protective cover.

[0009] A clamping seat is fixedly installed at the bottom of the inner wall of the protective cover, and the cold end of the heating element is fixedly installed on the clamping seat. The hot end of the heating element is flush with the axis of the protective cover.

[0010] The gas branch pipe and the air inlet pipe are configured with different diameters, and the other end of the gas pipe passes through the air inlet pipe.

[0011] Compared with the existing technology, the beneficial effects of this utility model are:

[0012] This invention features a simple structure, making it easy to install and use. It employs silicon carbide or silicon molybdenum heating rods as the heating element, which rapidly heats up and can stably output high temperatures. Combined with the spiral protrusion design at the end of the gas branch pipe, the airflow is rectified and converged, ensuring full contact with the high-temperature heating element. This allows the gas to quickly reach its ignition point, guaranteeing stable flare ignition. Simultaneously, the structural design of the protective cover and clamping base provides explosion-proof and heat-insulating protection, preventing deformation or displacement of the heating element due to high temperatures. This ensures concentrated heat output, effectively addressing the harsh and variable environment at high altitudes and solving the problems of low ignition success rate and unreliable reliability of existing ignition equipment.

[0013] This device abandons the existing ignition method that uses combustible gas for constant combustion. Instead, it uses an electric heating element to provide high temperature during the ignition stage to ignite the combustion source, which is industrial flare gas. This significantly reduces energy consumption and achieves the goal of energy saving. Attached Figure Description

[0014] Appendix Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Appendix Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0016] Appendix Figure 3 This is a cross-sectional structural diagram of the present invention.

[0017] The following are the labels shown in the attached diagram: 1. Gas branch pipe; 2. Protective cover; 3. Air inlet pipe; 4. Gas pipe; 5. Protective pipe; 6. Heating element; 7. Thermocouple; 8. Heating element power cord; 9. Thermocouple cable; 10. Connecting plate; 11. Spiral protrusion. Detailed Implementation

[0018] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0019] Referring to the accompanying drawings, an energy-saving ignition device for homogeneous flare gas includes a gas branch pipe 1, a protective cover 2 fixedly installed at one end of the gas branch pipe 1, an air inlet pipe 3 fixedly installed at the other end of the gas branch pipe 1, a gas pipe 4 coaxially installed inside the air inlet pipe 3, the air inlet pipe 3 being connected to an external air supply device, a protective pipe 5 fixedly installed at the bottom of the protective cover 2, a heating element 6 and a thermocouple 7 fixedly installed inside the protective cover 2, a heating element power line 8 and a thermocouple cable 9 installed inside the protective pipe 5, and electrically connected to the heating element 6 and the thermocouple 7 respectively, and the other end of the thermocouple cable 9 being connected to an external temperature feedback control power supply box.

[0020] The protective cover 2 has through holes arranged in an array. The protective tube 5 is arranged parallel to the gas branch pipe 1 and connected by two connecting plates 10. The two connecting plates 10 are fixed by several bolts and nuts. The protective tube 5 adopts a double tube arrangement to separate the heating element power line 8 and the thermocouple cable 9.

[0021] The gas branch pipe 1 is fixedly connected to the inner wall of the protective cover 2. The inner wall of the gas branch pipe 1 is arranged with spiral protrusions 11 in an array near the end of the protective cover 2. This structural design rectifies the airflow and makes the gas spray out evenly.

[0022] A clamping seat is fixedly installed at the bottom of the inner wall of the protective cover 2. The protective cover 2 is made of 310SS high-temperature resistant material. The heating element power line 8 and thermocouple cable 9 are high-temperature resistant flame-retardant cables. This structural design provides explosion protection and heat insulation. The cold end of the heating element 6 is fixedly installed on the clamping seat. The heating element 6 is a silicon carbide heating rod or a silicon molybdenum heating rod. The hot end of the heating element 6 is flush with the axis of the protective cover 2 to ensure the ignition center position.

[0023] The gas branch pipe 1 and the air inlet pipe 3 are configured with different diameters, and the other end of the gas pipe 4 passes through the air inlet pipe 3 and is connected to the exhaust gas main line of the external combustion equipment.

[0024] When in use, this device is fixed at the ignition port of the combustion equipment and uses an external air source to allow air with a certain pressure to enter from the air inlet pipe 3. At the same time, the air pressure and air volume are adjusted by external equipment. Industrial waste gas continuously enters the gas branch pipe 1 through the gas pipe 4. When the two air streams pass through the diameter change point, the flow velocity increases due to the narrowing diameter, which powers the heating element 6 to rapidly heat it up. Thermocouple 7 monitors the ambient temperature in real time and judges the working status of the radiant heating element based on the temperature feedback signal and adjusts it in time. When the hot end reaches the gas ignition threshold, the ignition process begins.

[0025] When the two airflows pass through the spiral protrusion 11, the airflows are rectified and converged and come into full contact with the heating element 6, quickly reaching the ignition point and achieving stable ignition of the flare gas; when the hot air reaches the temperature required for ignition of industrial waste gas (fuel ignition point), the fuel is ignited.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A homogeneous flare gas energy-saving ignition device, characterized in that: It includes a gas branch pipe (1), a protective cover (2) is fixedly installed at one end of the gas branch pipe (1), an air inlet pipe (3) is fixedly installed at the other end of the gas branch pipe (1), a gas pipe (4) is coaxially installed inside the air inlet pipe (3), a protective tube (5) is fixedly installed at the bottom of the protective cover (2), a heating element (6) and a thermocouple (7) are fixedly installed inside the protective cover (2), a heating element power cord (8) and a thermocouple cable (9) are installed inside the protective tube (5), and are electrically connected to the heating element (6) and the thermocouple (7) respectively, and the other end of the thermocouple cable (9) is connected to the external temperature feedback control power supply box.

2. The energy-saving ignition device for homogeneous flare gas according to claim 1, characterized in that: The protective cover (2) has through holes arranged in an array. The protective tube (5) is arranged parallel to the gas branch pipe (1) and connected by two connecting plates (10). The two connecting plates (10) are fixed by several bolts and nuts.

3. The energy-saving ignition device for homogeneous flare gas according to claim 1, characterized in that: The gas branch pipe (1) is fixedly connected to the inner wall of the protective cover (2), and spiral protrusions (11) are fixedly arranged in an array on the inner wall of the gas branch pipe (1) near the end of the protective cover (2).

4. The energy-saving ignition device for homogeneous flare gas according to claim 1, characterized in that: A clamping seat is fixedly installed at the bottom of the inner wall of the protective cover (2), and the cold end of the heating element (6) is fixedly installed on the clamping seat. The hot end of the heating element (6) is flush with the axis of the protective cover (2).

5. The energy-saving ignition device for homogeneous flare gas according to claim 1, characterized in that: The gas branch pipe (1) and the air inlet pipe (3) are configured with different diameters, and the other end of the gas pipe (4) passes through the air inlet pipe (3).

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