I. Project Introduction Boiler fuzzy control is proposed for the contradiction between the accuracy and complexity of the boiler system. For a complex system, a large amount of theoretical and practical experience information is used in the process of building a mathematical model. The boiler is such a system. Using fuzzy theory and fuzzy control method, the operator's operational experience can be summarized and fuzzy logic inference method is used to form a fuzzy control strategy. In the case of large changes in working conditions, the system has a fast tracking capability, which makes the boiler tend to be stable and achieve good control quality. And self-seeking optimization control, online adjustment of the wind-to-coal ratio, so that the operation of the boiler is approaching and reaching the optimal working condition. The boiler combustion fuzzy control system not only ensures the automatic operation of the boiler combustion, but also has significant economic and social benefits.
(1) After the boiler is equipped with the combustion computer monitoring system, the entire investment will be recovered after 2 years of operation by saving coal;
(2) greatly increase the reliability of boiler operation;
(3) greatly reduce the labor intensity of the operating personnel;
(4) Conducive to the realization of plant-wide automation and centralized management
Boiler room monitoring system structure diagram
Second, the typical case of Qingdao Alkali Industry Co., Ltd. 130 t / h pulverized coal furnace. Other economic benefits were 150,000 yuan, and the annual comprehensive economic benefit was 1.30 million yuan. The CO2 emission reduction due to coal saving is 2,665 tons. Has significant economic and social benefits.
Appraised by the national authority: After the input of the fuzzy control system, the thermal efficiency increased by 2.93 percentage points, the coal saving rate was 3.28%, the annual coal saving was 5250 tons, and the annual coal economic benefit was 1.155 million yuan.
Monitoring software interface
Open source thermoelectric 75 t / h pulverized coal furnace 3 sets. After the boiler is rebuilt, it can better meet the control of various working conditions, thus achieving the effect of saving energy and reducing energy consumption. Under test conditions, the boiler thermal efficiency increased from 80.8% before the transformation to 85.8%. The efficiency of the modified boiler was increased by 5 percentage points compared with that before the transformation. The statistics before and after the transformation show that the coal saving amount in the 9 months after the transformation is 1972 tons of standard coal, that is, the annual coal saving is 2629 tons of standard coal, and the annual comprehensive benefit is 841,300 yuan.
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The utility model discloses a Kitchen Shower head that is convenient to switch the water outlet mode, has a compact structure, and is easy to use, and a kitchen faucet using the kitchen shower head. , The shower head is provided with a water separator, and the water separator is provided with an annular flow channel and an inner flow channel respectively connected to the spray water outlet body and the V-shaped water outlet body, and the lower end of the outer wall of the water separator is upwardly circular A plurality of water inlet holes connected to the annular flow channel are provided, and a first sealing ring is provided on the lower side of the water inlet hole; the water outlet end of the shower body is connected with a converter, and the converter is provided with a communicating In the water diversion cavity at the water outlet end of the shower body, the lower end of the water diversion device is installed in the water diversion cavity and can move up and down, and the upper end of the inner wall of the water diversion cavity is provided with a convex ring matching the first sealing ring, so The bottom surface of the water diversion cavity is provided with a sealing gasket that can seal the inner flow channel.
Waterfall Shower Head,Overhead Shower Head,Push Button Hand Shower,Brushed Nickel Sink Faucet
Yuyao Zelin Sanitary Ware Co., Ltd , https://www.zlsanitaryware.com