What does hot standby operation mean?
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It’s a section in the operation manual, located between the Normal shutdown procedure and the emergency shutdown procedure; it seems to refer to a thermal wait operation – could it be translated as temporary shutdown? This post was last edited by niulijun117 on 2009-3-19 09:48.]
Hot standby. . . . . . . . .
I’m not too familiar with it, so I searched on Google for you; “hot standby operation” can be translated as \"hot standby operation.\" You can refer to http://publib.boulder.ibm.com/infocenter/tivihelp/v15r1/index.jsp?topic=/com.ibm.itm.doc_6.2.1/itm_highavail12.htm
The normal shutdown procedure is the “normal shutdown process”, while emergency shutdown refers to “emergency closure”. Therefore, hot standby operation means “hot standby function””
Normal shutdown procedure – This is the standard process for stopping a device, involving bringing it to a safe state in an orderly manner; this often results in what is referred to as hot standby status. It is usually possible to restart the device quickly. Emergency shutdown – This occurs when an accident happens within the device, such as a sudden large-scale leakage of materials or a fire. Safety interlocks are activated to force the device into a safe state, and this often involves actions such as isolating systems, stopping rotating equipment, and performing emergency cooling. It can be difficult to resume production after an emergency shutdown. Hot standby operation – This is a step within the normal shutdown process. After this operation is completed, the device is in an intermediate stable state. At this point, the auxiliary systems should remain operational, while the main system can be brought back online at any time to resume production
Hot Standby is a redundancy technique in which the primary system and the backup system operate simultaneously. Data is mirrored to the backup system in real time, so that both systems contain the same information. Through this, the backup system is ready to take over immediately in case of any errors in the main system. This term is likely a computer science term that has been adopted in the chemical industry.
The normal shutdown procedure is the “normal shutdown process”; emergency shutdown refers to the “emergency stop”; hot standby operation denotes “hot standby mode”, which usually applies to active and passive equipment that is kept operational. In the event of an emergency=accident, the hot standby is quickly activated to maintain the normal operation of the system. The condensate pump in our factory is just like this.
I just want to explain why \"hot\" is used here. It’s obvious that \"standby\" means backup, but the reason for using \"hot\" lies in the manufacturing process; I guess those in the chemical industry understand this. The hot standby in our factory refers to the backup gasifier.
\"Hot\" is a general term, right? It has nothing to do with the manufacturing process, right?
Regarding the content, I think experts have already provided answers. It should also be added that an emergency stop is generally an unconventional measure taken when human beings, machinery, the environment, and safety are at risk, and it is implemented for the sake of the aforementioned safety and social harmony.
It definitely isn’t like that. It must be related to temperature. :D :D
Hot standby refers to hot backup; I agree with yaozhiqing’s explanation. The explanation provided for the Guanyue Book House is not entirely accurate; hot standby has nothing to do with parking. Furthermore, the concept of hot standby in computers is equivalent to the corresponding concept in chemical engineering; computer technology is relatively newer, so it’s unlikely that chemical engineering has adopted computer concepts. Here, “hot” does not refer to temperature but rather to a state, meaning it is ready to be incorporated into the system at any time. Take the hot oil pump as an example: the hot standby pump must keep its interior filled with hot oil and undergo exhaust to maintain the temperature; the outlet valve may also need to be opened (depending on the size of the outlet pipeline), and it can be started for use by powering it up whenever needed. Thermal standby of the gasifier requires that the temperature inside the furnace be maintained above the minimum gasification temperature, so that it can be put into use at any time as required by the process. Conventional pumps, on the other hand, do not require temperature maintenance; once filled with water and the air is removed, they can be put into use at any time.
Pumps don’t require temperature, so I think the word \"hot\" isn’t necessary; \"standby\" is sufficient. Personal opinion
Just translate it as “hot standby (operation)” – professionals should be able to understand it right away. I haven’t delved into it in detail, but I think “hot” means something similar to “heat” in the context of a computer’s “warm start”. This post was last edited by echommm on 2009-3-22 10:44]
The hot standby here is merely a stable state during normal operation or shutdown; it is often a necessary process in either operating or shut-down conditions. Of course, depending on the actual production situation, this process can be long or short. This process usually occurs when the auxiliary systems are already in operation, the device is in a relatively stable and safe state, and the main system can be brought online at any time. Generally speaking, this state refers to the entire system; it is rarely used to refer to a single device.
According to a computer English dictionary, \"hot standby\" means hot backup: a hardware backup method that is automatically activated when a system failure is detected. This is in contrast to cold standby and warm standby. Hot is a state, and cold is also a state; it’s similar to being online, or ready to operate immediately. You can understand this by trying the standby mode of a computer. Next time, we might encounter cold standby and warm standby:lol
It should be translated as “thermal backup.” I used to hear people in the petrochemical industry use this term often, but I never knew what its English equivalent was. Now that I’ve heard this explanation, I understand it.
Emergency shutdown is what is commonly referred to as ESD: emergency stop, and not some other type of shutdown
I can’t agree. In many cases, hot standby is a requirement for normal production. Take the hot oil pump in my example: if the hot oil system is a critical one, such that an accident could cause the plant to stop operating, then typically a spare hot oil pump is installed to prevent failures in the hot oil pump from leading to a breakdown of the hot oil system and subsequent shutdown of the system or plant, as there would be no backup pump available to take over immediately. The thermal standby of the gasifier in coal gasification follows a similar principle.
I can’t agree. In many cases, hot standby is a requirement for normal production. Take the hot oil pump in my example: if the hot oil system is a critical one, such that an accident could cause the plant to stop operating, then typically a spare hot oil pump is installed to prevent failures in the hot oil pump from leading to a breakdown of the hot oil system and subsequent shutdown of the system or plant, as there would be no backup pump available to take over immediately. The thermal standby of the gasifier in coal gasification follows a similar principle.