Constant-light process for hydrogen production converter
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The permanent light is connected directly to the main gas pipeline at the top of the furnace, located after the shut-off valve. Is this setup reasonable? Please take a look at a different process
For a converter, is it still necessary to install an eternal flame?
We only have high-pressure fuel and low-pressure fuel
Are only our burners equipped with eternal flames?
Multiple conversion furnaces at home and abroad have been designed, and none of them are equipped with permanent lights.
In conventional conversion furnaces, there are two types of fuel: PSA off-gas and supplementary fuel gas. In such cases, a pilot light is generally not used; some people believe that one of these two fuels serves as a substitute for a pilot light. Some conversion furnaces use only one type of fuel and do not produce PSA off-gases; in such cases, a pilot light is installed. Both of these situations do indeed occur in practice.
As for the permanent light, it is called such because its fuel is not controlled by the main fuel control valve; it is usually taken from a location within the plant before main fuel regulation (in terms of pressure and flow). Of course, this fuel supply requires controls such as pressure reduction and regulation of the combustion volume. For burners, having a pilot light is more beneficial for ensuring the safety of flame combustion in the device. The pilot light is installed to prevent the flame from going out due to imbalances in fuel regulation (such as fluctuations in fuel pressure or operational errors), as well as excessive amounts of air supply or exhaust air, thereby ensuring safe combustion. For single burners, electronic remote ignition is used in most cases; this is also referred to as an ignition gun, and such a gun can function as a pilot light. For multi-burner systems, a pilot light arrangement is commonly used; in most cases, electronic ignition rods are employed for ignition on-site, though there are also designs that use remote electronic ignition guns. Configuring a Burn Management System (BMS) is now considered a trend in order to achieve a certain level of safety. This management system requires that the ignition gun be turned off after the main burner starts burning; such control is achieved through flame detection for the ignition gun and for the main burner. With this configuration, there is no longer any need for a continuously lit flame. In this type of control, the fuel for the ignition gun is taken from the supply after the main fuel pressure has been adjusted but before the fuel quantity is adjusted.
Conversion furnaces for hydrogen production via the steam reforming of light hydrocarbons generally do not have a pilot light.
Top-fired? The permanent light for the furnace should have its own pipeline and separate control valve, right? It would be better to separate it from the main gas inlet pipeline