Two-stage temperature control system
A temperature control system and pipeline technology, applied in the control of fluid heaters, fluid heaters, mechanical equipment, etc., can solve problems such as no cooling control, long-term natural cooling, and unstable temperature adjustment by regulating valves
Pending Publication Date: 2022-04-08
SUZHOU AODE MACHINERY
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Problems solved by technology
In large-scale chemical enterprises, there are various heat-using reactors, rectification towers, dryers and other equipment, so large-scale boilers are the first choice for heat-using equipment, but a single boiler has only one constant temperature. Under the circumstances, the control valve can only be used to control the flow, and there are often many problems in the process of use. Therefore, a secondary temperature control system is designed to accurately control the temperature control object.
[0003] A single device in the prior art can only output one temperature, and it takes a long time to switch the temperature. The regulating valve adjusts the temperature unstable, and it is easy to cause temperature overshoot, and there is no cooling control, and it takes a long time after the temperature overshoot. time for natural cooling
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[0019] Such as figure 1 As shown, a secondary temperature control system includes a heat exchanger 1, one end of the heat exchanger 1 is respectively provided with a cooling water outlet pipe 2 and a cooling water inlet pipe 3 connected thereto, and the upper end and one side of the heat exchanger 1 are respectively A first pipeline 5 and a second pipeline 6 are provided, and the other end of the first pipeline 5 away from the heat exchanger 1 is connected to a third pipeline 16, and the two ends of the third pipeline 16 are respectively provided with a client outlet 15 and a second pipeline connected thereto. An electric control valve 19, the other end of the second pipeline 6 away from the heat exchanger 1 is connected to the first electric control valve 19, the first electric control valve 19 is far away from the third pipeline 16, the other end of the second pipeline 6 is connected to the fourth pipeline 31, the fourth pipeline 31 is provided with a second electric control...
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The two-stage temperature control system comprises a heat exchanger, the heat exchanger is connected with a cooling water outlet pipeline, a cooling water inlet pipeline, a first pipeline and a second pipeline, the other end of the first pipeline is connected with a third pipeline, and the two ends of the third pipeline are provided with a client outlet and a first electric control valve respectively. The second pipeline is connected with a first electric control valve, the first electric control valve is connected with a fourth pipeline, a second electric control valve is arranged on the fourth pipeline, the fourth pipeline is connected with a fifth pipeline and a sixth pipeline, and the two ends of a seventh pipeline are a boiler return connector and a client inlet. The system has the advantages that the system is provided with an independent circulating system, circulating heating is achieved during temperature control, precision is higher, the independent system can be provided with a cooling system, exhaust is controlled by a bypass electromagnetic valve during cooling, the system vacuum phenomenon during cooling is prevented, the system is provided with a one-way valve, and the situation that when the system is cooled, a high-temperature heat source flows back to a pump inlet and then enters the circulating system is prevented; the system cooling efficiency is influenced.
Description
technical field [0001] The invention relates to the technical field of chemical production, in particular to a secondary temperature control system. Background technique [0002] In chemical, petroleum, metallurgical and other production processes, temperature is often a very important quantity. With the progress of society and the improvement of production technology, more precise temperature control is often required. In large-scale chemical enterprises, there are various heat-using reactors, rectification towers, dryers and other equipment, so large-scale boilers are the first choice for heat-using equipment, but a single boiler has only one constant temperature. Under the circumstances, the control valve can only be used to control the flow, and there are often many problems in the process of use. Therefore, a secondary temperature control system is designed to accurately control the temperature control object. [0003] A single device in the prior art can only output o...
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IPC IPC(8): F24H9/13F24H9/20F24H15/305
Inventor 廖晓军
Owner SUZHOU AODE MACHINERY