Explosion-proof High and Low Temperature All-in-one Machine Temperature Control Range

2022/11/24 ClassificationIndustry News 130

Explosion-proof High and Low Temperature All-in-one Machine Temperature Control Range

Explosion-proof high and low temperature all-in-one machine is a temperature control equipment that integrates heating and cooling to meet the needs of different production processes. The heating part of the high and low temperature integrated machine adopts the form of electric heating, and the cooling part adopts compression refrigeration. Through the perfect system combination, two different temperature control requirements are combined. Reactors are used for mixing or chemical reactions between materials. During exothermic or endothermic process, this part of heat needs to be balanced by the device and kept within a certain temperature range to ensure normal production. The temperature control range of the high and low temperature integrated machine is -120℃～+250℃. The refrigeration circuit can be started independently at different times, reducing the interference to the power grid, stabilizing the performance of the compressor, effectively saving electricity, realizing automatic temperature control, and meeting 24-hour continuous operation requirements.

Explosion-proof high and low temperature integrated machine temperature control technology TCU temperature control system

(1) The reactor used for temperature control is a controlled object with large capacity and thick wall, and an object with large heat capacity and long pure lag time. As the reaction occurs, the heat transfer coefficient of each heat transfer medium changes nonlinearly and is more sensitive to changes in various external environments. In addition, the gain varies greatly during the reaction, and even the direction of the gain change is different. In addition, as the reaction occurs and the solid particles in the kettle increase, the heat transfer coefficient in the kettle will change irregularly

(2) During the reaction process of the temperature-controlled reactor, due to the complexity and nonlinearity of the exothermic process of the chemical reaction, the heat transfer coefficient of each heat transfer medium will change nonlinearly, which is sensitive to various external disturbances and difficult to control . If the heat dissipation is not timely and uneven during the reaction process, the reaction temperature will continue to rise, and it is easy to cause runaway temperature and explosive polymerization due to local overheating. Conversely, if there is too much exotherm, the reaction temperature will drop, causing the reaction to disappear. A major factor in the polymerization reaction is the temperature control of the reactor. Changes in temperature will directly affect product quality and yield. Therefore, temperature control is the key and difficult point in the process

(3) Under the temperature control mode of the reactor equipped with a high and low temperature integrated machine, the chemical reaction mechanism of the reaction process is complex, especially the balance of materials and energy, reaction kinetics, etc., changes in raw material purity, catalyst type, raw material addition amount, External conditions such as hot water temperature and circulating coolant flow have a strong influence on the system, making it difficult to derive a mechanistic model. Due to the complexity and nonlinearity of the exothermic process of chemical reactions. How to reduce the energy consumption of the explosion-proof high and low temperature all-in-one machine To reduce the energy consumption of the explosion-proof high and low temperature all-in-one machine, a good operating environment must first be provided. In addition, excessive voltage will also cause problems and failures. If you want to control the efficiency of the explosion-proof high and low temperature all-in-one machine and maintain the reliability and stability of the system, you must formulate a specific use plan.

No matter what kind of equipment, if there is no clear plan, the system will be overloaded, seriously affecting product quality, regular maintenance of high and low temperature all-in-one machine can ensure the stability of the equipment. Since the explosion-proof high and low temperature all-in-one machine is greatly affected by the environment, it is necessary to pay attention to the environmental impact of the equipment while ensuring the quality.

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