Coil series cyclone wet dust removal coal-fired boiler

A technology for wet dust removal and coal-fired boilers, applied in the directions of combustion technology mitigation, greenhouse gas reduction, climate sustainability, etc., can solve problems such as difficulty in disassembly, and achieve the improvement of disassembly and assembly technology, elimination of tension, and enhancement of axial direction. elastic effect

Active Publication Date: 2018-10-19
张家港和智珅知识产权有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual assembly of shafts and holes with transmission threads, in order to achieve large load-bearing functions, the size of the threaded shafts and matching nut-like components are relatively large, and it is often easy and convenient to screw in during assembly, and It can realize the automatic and continuous locking of the bearing capacity during use, so it is very reliable, but when it is disassembled, the assembly is often very tight, and disassembly is very difficult. It is particularly important to realize simple and easy disassembly under this condition

Method used

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  • Coil series cyclone wet dust removal coal-fired boiler
  • Coil series cyclone wet dust removal coal-fired boiler
  • Coil series cyclone wet dust removal coal-fired boiler

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Embodiment Construction

[0025] Now in conjunction with accompanying drawing, the present invention is described in further detail.

[0026] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 and Figure 6 The coil series-type cyclone wet-process dedusting coal-fired boiler shown includes the boiler main body 1, and the high-temperature tail gas pipe of the boiler main body is connected to the induced draft fan A through the water preheating coil heat exchanger 2 and the cyclone dust collector 3; the bottom of the cyclone dust collector 3 Connect to the sewage pool 7, the water in the sewage pool 7 is connected to the spray plate 5 in the cyclone dust collector 3 through the spray pump 4; After the two-stage preheating of the device, water is supplied to the boiler through the high-pressure pump system; the induced draft fan A includes a fan impeller 31, a bearing 33, a fan shaft 34 and a pulley 35, and the pulley 35 and the fan shaft 34 and the fan impeller 31 and the fan shaft 34 a...

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Abstract

The invention discloses a cyclone wet dust collection type coal-fired boiler with coil pipes connected in series. A high-temperature tail gas pipe of a boiler body is connected to an air induction fan through a water preheating coil pipe heat exchanger and a cyclone wet dust collector; a high-position soft water pool supplies water to the boiler after being preheated by a heat exchange coil pipe in a sewage pool and the water preheating coil pipe heat exchanger; threaded assembly is adopted between a belt pulley and a fan shaft of the air induction fan and between a fan impeller and the fan shaft of the air induction fan, and the thread rotation direction is the automatic locking direction along with working and bearing; the fan impeller is in threaded and rigid connection with the fan shaft after pressing a copper-plastic reversed composite pad; the belt pulley and the other end of the fan shaft are connected rigidly through a clamp part. According to the boiler, heat recovery and purification treatment of tail gas of the boiler are realized, the disassembly and assembly technology of the air induction fan of the boiler is greatly modified, the problems that the air induction fan of the boiler is continuously and automatically locked and is difficult to disassemble under the loading effect due to threaded assembly can be effectively solved, and large boiler fans can be disassembled conveniently and quickly after being locked in a threaded mode.

Description

technical field [0001] The invention relates to a coal-fired boiler with a coil tube series cyclone wet method dedusting and convenient for dismantling and maintenance of an induced draft fan. Background technique [0002] Boilers are widely used thermal power equipment. The long-term operation of the fan is inseparable from the air supply and dust removal of the boiler. Therefore, the fan is the key equipment of the boiler. The larger the tonnage of the boiler, the larger the fan used. The structure of ordinary fans is generally that one end of the fan shaft is the fan impeller, and the other end is the power input end of the motor, usually a pulley. Since the fans in the boiler generally run continuously for a long time, the bearings are easily damaged. To replace the bearings, it is generally necessary to disassemble the fan impeller and the pulley at the other end first. However, the assembly of the existing boiler fan shaft, fan impeller and pulley is a typical shaft. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23J15/00F23J15/06F22D1/02
CPCF22D1/02F23J15/006F23J15/06Y02E20/30
Inventor 张旭银永忠张思言
Owner 张家港和智珅知识产权有限公司
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