[Q&A Question 181] 2017.06.30
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This post was last edited by 955559 on 2017-7-21 23:04. [Q&A Question 181] June 30, 2017: What is a heat exchanger? Into which categories can it be divided based on its purpose? The reference answers will be visible after responding; points will be awarded for identifying the key points. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Note: For questions of the type \"one question per day,\" if a person replies continuously for a month, that is, posts more than 30 times, their score will be assigned as 2 points, which is the lowest possible score. Click once to reply; if multiple replies are made, points will be awarded as appropriate, as deleting posts is also a waste of time. A heat exchanger is a device in which mass flows at different temperatures pass through its two sides to exchange heat. Based on their applications, they can be classified into the following categories: (1) Heat exchangers: Fluids at different temperatures exchange heat, with one fluid gaining temperature and the other losing it. (2) Condenser: Heat is exchanged between two fluids at different temperatures, with one fluid being condensed from a gaseous state to a liquid state. (3) Evaporator: Opposite to the condenser, here one fluid is evaporated from a liquid state to a gaseous state. (4) Cooler: It does not recover heat; it is used solely to cool the fluid for process requirements. Commonly water or air. (5) Heater: Utilizes waste heat to simply raise the temperature of a fluid. Scoring criteria: 2 Wealth points for incorrect attempts; 3–8 points for *incomplete* answers. 10 Wealth points for correct answers, provided along with a detailed explanation; 15–20 Wealth points for correct answers with additional *insufficient* details. Please score according to these criteria. Note: If there are editing records after answering, only those who participated will be given points. For continuous malicious spamming, 2 points will be deducted each time, with no upper limit. Pure numbers, pure emojis, or random letters unrelated to the answer are all considered malicious spamming; points will start to be deducted after three warnings. 2017 Q&A Summary Thread (updating now) http://bbs.hcbbs.com/thread-1657793-1-1.html 2017 Daily Question Summary Thread (updating now) http://bbs.hcbbs.com/thread-1657794-1-1.html 2016 Q&A Summary Thread (fully updated) http://bbs.hcbbs.com/thread-1597792-1-1.html
A heat exchanger is a device in which fluid streams at different temperatures pass on either side of the equipment to exchange heat. Based on their purpose, they can be classified into the following categories: ① Heat exchangers: Used for heat exchange between two fluids at different temperatures, with one fluid heating up and the other cooling down. ②Condenser: Heat exchange occurs between two fluids at different temperatures, with one fluid being condensed from a gaseous state to a liquid state. ③Evaporator: Unlike the condenser, in this device one of the fluids is transformed from a liquid to a gas. ④Cooler: It does not recover heat; it is used solely to cool the fluid for process requirements. Commonly water or air. ⑤Heater: Utilizes waste heat to simply raise the temperature of a fluid.
Those used for heat exchange consist of a core and a shell, and are divided into fixed tube sheets, U-tubes, and floating heads
A heat exchanger is a device in which mass flows at different temperatures pass through its two sides to exchange heat. Based on their purpose, they can be classified into the following categories: 1. Heat exchangers: Fluids at different temperatures exchange heat, with one fluid having its temperature increase and the other decreasing. 2. Condenser: Heat exchange occurs between two fluids at different temperatures, with one fluid condensing from a gaseous state to a liquid state. 3. Evaporator: Unlike the condenser, one of the fluids is vaporized from a liquid state into a gas state. 4. Cooler: It does not recover heat; it is used solely to cool the fluid according to process requirements, with air or water being commonly used. 5. Heater: Utilizes waste heat to simply raise the temperature of a fluid.
Answer: A heat exchanger is a device in which media at different temperatures flow on either side of the equipment to exchange heat. Based on their purpose, they can be classified into the following categories: ① Heat exchangers: Used for heat exchange between two fluids at different temperatures, with one fluid heating up and the other cooling down. ②Condenser: Heat exchange occurs in the opposite direction between two fluids at different temperatures, with one fluid condensing from a gaseous state to a liquid state. ③Evaporator: Unlike the condenser, in this device one of the fluids is evaporated from a liquid state to a gas state. ④Cooler: It does not recover heat; it is used solely to cool the fluid according to process requirements, with air or water being commonly used. ⑤Heater: Utilizes waste heat to simply raise the temperature of a fluid.
A heat exchanger is a device in which mass flows at different temperatures pass through both sides of the equipment to exchange heat. Heat exchanger, condenser, evaporator, cooler, heater
A heat exchanger is a device that transfers part of the heat from a hot fluid to a cold fluid, also known as a heat transfer unit. Heater, preheater, superheater, evaporator, reboiler, cooler, cryocooler, condenser, total condenser, fractional condenser.
A heat exchanger is a device in which mass flows at different temperatures pass through its two sides to exchange heat. Based on their purpose, they can be classified into the following categories: (1) Heat exchangers: Fluids at different temperatures exchange heat, with one fluid having its temperature rise and the other decreasing. (2) Condenser: Heat is exchanged between two fluids at different temperatures, with one fluid being condensed from a gaseous state to a liquid state. (3) Evaporator: Opposite to the condenser, here one fluid is evaporated from a liquid state to a gaseous state. (4) Cooler: It does not recover heat; it is used solely to cool the fluid for process requirements. Commonly water or air. (5) Heater: Utilizes waste heat to simply raise the temperature of a fluid.
Devices through which mass flows at different temperatures pass on either side to exchange heat can be classified into the following categories based on their purpose: (1) Heat exchangers: Fluids at two different temperatures exchange heat, with one fluid heating up and the other cooling down. (2) Condenser: Heat is exchanged between two fluids at different temperatures, with one fluid being condensed from a gaseous state to a liquid state. (3) Evaporator: Opposite to the condenser, here one fluid is evaporated from a liquid state to a gaseous state. (4) Cooler: It does not recover heat; it is used solely to cool the fluid for process requirements. Commonly water or air. (5) Heater: Utilizes waste heat to simply raise the temperature of a fluid.
Answer: A heat exchanger is a device in which mass flows at different temperatures pass through its two sides to exchange heat. Based on their applications, they can be classified into the following categories: (1) Heat exchangers: Fluids at different temperatures exchange heat, with one fluid gaining temperature and the other losing it. (2) Condenser: Heat is exchanged between two fluids at different temperatures, with one fluid being condensed from a gaseous state to a liquid state. (3) Evaporator: Opposite to the condenser, here one fluid is evaporated from a liquid state to a gaseous state. (4) Cooler: It does not recover heat; it is used solely to cool the fluid for process requirements. Commonly water or air. (5) Heater: Utilizes waste heat to simply raise the temperature of a fluid.
Media at different temperatures flow through the device to exchange heat. Divided into heat exchangers, condensers, evaporators, coolers, and heaters