CN212869848U

CN212869848U - AC/DC double-circuit torch high altitude igniter

Info

Publication number: CN212869848U
Application number: CN201922503051.7U
Authority: CN
Inventors: 马孝荣
Original assignee: Beijing Srida Spark Petrochemical Equipment Co ltd
Current assignee: Beijing Srida Spark Petrochemical Equipment Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2021-04-02
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses an alternating current-direct current double-circuit torch high altitude point firearm for on petrochemical and natural gas field torch, its characterized in that: the ignition device can be ignited in an alternating current mode, can also be ignited in a direct current mode, and can also be ignited simultaneously in an alternating current and direct current mode, so that the respective advantages of the alternating current and direct current ignition modes are exerted, and meanwhile, the success rate and the reliability of torch ignition are obviously improved. The AC-DC double-circuit torch high-altitude igniter mainly comprises a power supply control box (1), an AC high-voltage generator (2), a high-voltage cable (3), a high-voltage wiring terminal (4), a high-temperature alloy wire (5), a gas pipe (6), an electrode (7), a fire transmission cylinder (8), an electric nozzle (10), a high-temperature cable (11), a DC low-voltage generator (12) and the like.

Description

AC/DC double-circuit torch high altitude igniter

Technical Field

The utility model belongs to petrochemical industry and natural gas field belong to torch system's ignition equipment.

Background

A torch is a common device in petrochemical industry and natural gas industry. The device has the function that when the production device is overhauled and stopped or the device encounters an emergency, a large amount of combustible gas is discharged from a torch. In order not to pollute the environment, but also for safety reasons, the combustible gas discharged from the torch must be immediately burned off. The key point is that a safe and reliable torch high-altitude igniter is arranged on the torch.

The requirement for torch overhead igniters is particularly high because torches are generally tall, twenty meters in the lowest, and up to 150 meters in the highest, which makes maintenance extremely difficult. Firstly, because of high torch and strong specialization, few persons can go up to repair. Secondly, the flare cannot be lifted up during operation, and even if the flare stops discharging, a lot of auxiliary work such as nitrogen purging, blind plate adding and the like is needed to be carried out, and then the flare can be lifted up. That is, the maintenance time is greatly delayed. Moreover, the torch discharges combustible gas which is flammable and even explosive, and the safety of equipment and operators is directly related. Therefore, the high-altitude igniter of the torch cannot be repaired as the other devices are damaged, but cannot be damaged during working, and has to be particularly reliable so as to ensure that the torch is discharged and ignited at any time.

At present, the torch ignition adopts a direct current mode or an alternating current mode, and the modes are single ignition modes. It can be said that both of these ignition modes have their own advantages, but at the same time both have their own disadvantages which are difficult to overcome. For example, an ac high-voltage strong arc is ignited because of the high voltage of tens of thousands of volts, the ignition energy is large, the arc flame is long and stable, but the requirement on the insulation performance of the whole line is high, and the line breakdown is easy to occur at a weak point. Because the humidity has a great influence on the insulation performance, the phenomenon of misfire is easy to occur when the humidity is high in rainy and snowy days. For example, in direct current ignition, the electric nozzle can discharge and ignite in a humid environment, but the biggest defect is that the distance between the electric nozzles is small, carbon is deposited at the electric nozzle after long use, the carbon is short-circuited, and the phenomenon of point misfire is also caused. Interestingly, these disadvantages are just the advantages of each other.

SUMMERY OF THE UTILITY MODEL

In view of this, we combine the two, each taking the longest advantage. The utility model aims at providing a torch high altitude ignition ware that is more reliable, more durable, alternating current-direct current double-circuit torch high altitude ignition ware promptly.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: (1) the device comprises a power supply control box, (2) an alternating current high-voltage generator, (3) a high-voltage cable, (4) a high-voltage wiring terminal, (5) a high-temperature alloy wire, (6) a gas pipe, (7) an electrode, (8) a fire tube, (9) a torch, (10) an electric nozzle, (11) a high-temperature cable, (12) a direct current low-voltage generator, (13) a humidity switch and (14) a three-position selection switch.

Detailed Description

The principle of the AC-DC double-path torch high-altitude igniter is as follows:

an alternating current ignition system is selected to work, a conventional 220V power supply is provided by a power supply control box (1), high-voltage alternating current is generated by an alternating current high-voltage generator (2), electric arcs are generated by a high-voltage cable (3), a high-voltage wiring terminal (4), a high-temperature alloy wire (5) and an electrode (7) in sequence, gas provided by a gas pipe (6) is ignited, and a torch is ignited by a fire transfer cylinder (8).

The direct current ignition system is selected to work, a power control box (1) provides a conventional 220V power supply, a direct current low-voltage generator (12) generates low-voltage direct current, electric sparks are generated through a high-temperature cable (11) and an electric nozzle (10), gas provided by a gas pipe (6) is ignited, and a torch (9) is ignited through a fire transfer cylinder (8).

The alternating current-direct current dual-path ignition system is selected to work, namely the two ignition systems work simultaneously.

The electric nozzle (10) is positioned above the electrode (7), and the carbon deposition part of the electric nozzle can be cleaned when the electrode is in arc discharge, so that short circuit of the low-voltage ignition device caused by the carbon deposition of the electric nozzle is prevented.

A humidity switch (13) is additionally arranged in the power supply control box (1), when the humidity is lower than a set value, an alternating current ignition circuit is connected, and when the humidity is higher than the set value, a direct current ignition circuit is connected. The AC/DC ignition circuit is automatically switched through the humidity switch, so that the torch ignition system adapts to the change of the torch field environment, and the safe and trouble-free operation of the torch and the ignition system is protected.

The power control box (1) is additionally provided with a three-position selector switch (14), and can manually select three modes of alternating current ignition, direct current ignition or alternating current and direct current simultaneous ignition to perform ignition work.

Because the AC/DC double-path torch high-altitude igniter is adopted, not only one ignition circuit is added, but also two ignition modes in different modes are adopted, the advantages are complementary, and the reliability and the success rate of torch ignition are greatly improved.

Claims

1. The utility model provides an alternating current-direct current double-circuit torch high altitude ignition ware, its characterized in that can carry out alternating current-direct current double-circuit simultaneous ignition to the torch, includes power control box (1), exchanges high voltage generator (2), high tension cable (3), high voltage binding post (4), high temperature alloy silk (5), gas pipe (6), electrode (7), biography fire section of thick bamboo (8), electric nozzle (10), high temperature cable (11), direct current low pressure generator (12), wherein installs humidity switch (13) and tribit selector switch (14) additional on power control box (1).

2. The ac-dc two-way torch high altitude igniter according to claim 1, wherein there are two independent ignition lines.

3. The AC-DC double-path torch high altitude igniter as claimed in claim 1, wherein the two independent ignition paths adopt ignition modes of different principles, one path is AC ignition, and the other path is DC ignition.