32results about How to "Improve electricity consumption" patented technology

The invention discloses automatic throw-in equipment of an emergency power supply. Power supply connectors of control ends of starting coils and reset coils of a double-position relay are connected to a secondary-side circuit of a voltage transformer PT of a main power supply and a secondary-side circuit of a voltage transformer PT of the emergency power supply respectively, the secondary-side circuit of the voltage transformer PT of the main power supply is electrically connected with a main power supply bus 110KV-4 through normally-open contacts of a two-position interlocking relay SWJ, the secondary-side circuit of the voltage transformer PT of the emergency power supply is electrically connected with an emergency power supply bus 110KV-5 through normally-open contacts of the two-position interlocking relay SWJ, and a parallel operation mode and a march-past operation mode of 110kV voltage transformers PT are further achieved. The automatic throw-in equipment of the emergency power supply has the advantages of effectively solving design defects of primary equipment, improving operation reliability of a power supply system, preventing major accidents, like protection operation rejection and mal-operation, caused by misoperation, meeting reliable power supply requirements of important users, and improving work levels of the relay protection major.

The disclosed preparation method for AC foaming agent comprises: A. condensing and distilling directly the low-concentration hydrazine hydrate; B. preparing the high-concentration hydrazine hydrate; C. acidifying and condensing to prepare biurea; D. oxygenizing with Cl2 to obtain the target. This invention improves the method of freezing and removing Na2CO310H2O, decreases consumption of acid and powder, can recover the residue as byproduct to increase economic benefit, and reduces sewage discharge and tap water consumption.

The invention provides a method for utilizing waste heat of polysilicon reduction tail gas, which comprises the following steps: using the cooling capacity of circulating water from the Liebig condensing tube in the first sleeve to cool the reduction tail gas output from the reduction furnace, and making the first set The reduced tail gas after the tube cooling enters the Liebig condensation tube; in the Liebig condensation tube, the cooling capacity of the feed gas from the static mixer and the circulating water from the circulating water system is used to control the reduction from the first sleeve. The tail gas is cooled again, and the feed gas whose cooling capacity has been utilized by the Liebig condensing tube enters the reduction furnace, and the circulating water whose cooling capacity has been utilized by the Liebig condensing tube enters the first casing. Correspondingly, a polysilicon reduction tail gas waste heat utilization system is also provided. The invention can not only reduce the unit power consumption of polysilicon production, improve the primary conversion rate of TCS, but also avoid appearance problems of products and effectively reduce the temperature of reduction tail gas.

The invention discloses a heating system for caprolactam polymerization reaction device, which includes a reaction cartridge constituted of an upper cartridge and a lower cartridge. A upper supporting plate is disposed in the upper cartridge, through-holes are arranged at both the upper supporting plate and the upper cartridge, and steel pipes are connected to a pair of corresponding through-hole. A distribution cavity is remained at top of the upper supporting plate and the upper cartridge, and caprolactam inlet is arranged at top of the distribution cavity. The lower cartridge is constituted of inner cartridge and outer cartridge to form jacket. Upper end of the inner cartridge is connected with bottom plate of the upper cartridge, a caprolactam outlet is disposed at bottom of the lower cartridge, and heat conductivity oil source is also included in bottom of the lower cartridge. Oil inlet and outlet are both disposed at upper cartridge and lower cartridge, the oil outlets are connected with inlet of the heat conductivity oil source by oil pipe, and the oil inlets are connected with outlet of the heat conductivity oil source by oil pump and valve. Advantages of the heating system are: fire hazard and explosion accident can be avoided, production efficiency is high, cost is low, and the heating system is adapt for heating polymerization reaction device for producing nylon section with caprolactam as raw material.

The invention discloses an electric dust removal energy-saving control method based on boiler coal volume and air volume, which includes: obtaining the current total coal volume of the boiler, the current total air volume, and the dust content at the outlet of the electrostatic precipitator; according to formula I I2 =[(T‑T target ) / (T max -T min )]*(I I2max -I I2min )+I Icoal +I Iw Calculate the target value of the electric field secondary current, and adjust the current electric field secondary current value of the electrostatic precipitator to the electric field secondary current target value. The invention also discloses an electric dust removal energy-saving control system based on boiler coal volume and air volume, which includes a parameter acquisition module for obtaining the current total coal volume of the boiler, the current total air volume, and the dust content at the outlet of the electrostatic precipitator; an analysis and adjustment module for According to formula I I2 =[(T‑T target ) / (T max -T min )]*(I I2max -I I2min )+I Icoal +I Iw Calculate the target value of the electric field secondary current, and adjust the current electric field secondary current value of the electrostatic precipitator to the electric field secondary current target value. The invention can improve the automatic control effect of the electric precipitator, prevent the power plant dust from exceeding the standard discharge, realize environmental protection, reduce the power consumption rate of the power plant, and achieve the purpose of energy saving.