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Tail heat recovery and dust removal integrated coal-fired boiler with induced draft fan for easy disassembly

A tail heat recovery and coal-fired boiler technology, which is applied in the direction of air induction, removal of solid residue, and parts of pumping devices for elastic fluids, can solve problems such as difficulty in disassembly, and achieve the goal of eliminating fatigue fractures, saving materials, significant effect

Active Publication Date: 2018-07-13
安徽星洁环保科技有限公司
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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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  • Tail heat recovery and dust removal integrated coal-fired boiler with induced draft fan for easy disassembly
  • Tail heat recovery and dust removal integrated coal-fired boiler with induced draft fan for easy disassembly
  • Tail heat recovery and dust removal integrated coal-fired boiler with induced draft fan for easy disassembly

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Embodiment Construction

[0034] Now in conjunction with accompanying drawing, the present invention is described in further detail.

[0035] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 The exhaust heat recovery and dust removal integrated coal-fired boiler shown in the induced draft fan is easy to disassemble, including the boiler main body 1, boiler exhaust pipe 3, boiler sewage pipe 2, cyclone dust removal tail heat efficient recovery device 4 and induced draft fan A, cyclone dust removal tail heat The high-efficiency recovery device 4 is composed of a tube-and-tube heat exchanger 6 and a cyclone dust collector 7. The boiler tail gas pipe 3 is connected to the cyclone dust collector 7 tangentially. The swirl rising pipe 9 is connected to the cone, dispersed evenly and passed through the tube array, concentrated by the upper cone bucket and discharged from the exhaust pipe 12 through the induced draft fan A; the high-level ...

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Abstract

The invention discloses a residual heat recycling and dust removal integrated coal-fired boiler with a conveniently detachable draught fan. A cyclone dust removal residual heat efficiency recycling device is formed by overlapping a tubular heat exchanger and a cyclone dust remover; a boiler exhaust pipe is connected with the cyclone dust remover in a tangential direction; after cyclone dust removal is carried out, ash is discharged from a cone bottom through an air closing device; exhaust is connected with a cone body through a rotational flow ascending pipe, is uniformly dispersed and then penetrates through tubes; after being concentrated through an upper conical hopper, the exhaust is discharged by the draught fan through an exhausting pipe; a high-level water tank is connected with the lower part of a shell side of the tubular heat exchanger; and an impeller of the draught fan can be used for cleaning the ash in real time through a centrifugal force. The residual heat recycling and dust removal integrated coal-fired boiler realizes integrated type residual heat recycling and dust removal; more importantly, a dismounting technology of the draught fan is greatly improved, and pressure on the end face of a screw shaft shoulder of a screw cap part can be simply eliminated in a dismounting process, so that the problem that thread assembling of the draught fan is continuously automatically locked under the action of a load and thus detachment is not easy is effectively solved; and therefore, the technical scheme is particularly suitable for conveniently detaching a large-size draught fan locked through a thread and the effect is particularly remarkable.

Description

technical field [0001] The invention relates to a coal-fired boiler, and specifically refers to an integrated coal-fired boiler with tail heat recovery and dust removal which is easy to disassemble and has no dust accumulation in the fan. Background technique [0002] Boilers are very commonly used thermal power equipment. Coal-fired boilers are still one of the main preferred equipment for heating due to mature technology and low fuel costs. However, coal-fired boilers need to Carry out tail heat recovery, dust removal, harmful gas purification and other operations on the tail gas. [0003] The induced draft fan is the key equipment for coal-fired boilers to realize tail heat recovery and dust removal. Most of the induced draft fans for boilers are centrifugal fans. The continuous, stable and reliable operation of the induced draft fans is very important. Because most of the occasions where coal-fired boilers are used contain certain dust , When the induced draft fan is wo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23J15/08F23J3/02F23L17/00F04D29/60
CPCF04D29/601F23J3/02F23J15/08F23L17/00
Inventor 银永忠张时生
Owner 安徽星洁环保科技有限公司
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