CN2165331Y

CN2165331Y - Dusting coal-saver

Info

Publication number: CN2165331Y
Application number: CN 93237558
Authority: CN
Inventors: 徐建成
Original assignee: Wujin Jiangnan Coating Machinery Works; Changzhou Federation Of Industry And Commerce Economic Advisory Services
Current assignee: Wujin Jiangnan Coating Machinery Works; Changzhou Federation Of Industry And Commerce Economic Advisory Services
Priority date: 1993-09-03
Filing date: 1993-09-03
Publication date: 1994-05-18
Anticipated expiration: 2003-09-03

Abstract

The utility model relates to a dusting coal-saver. Smoke pipes are arranged in the longitudinal tubes of back-shaped water pipes. The both ends of each of the smoke pipes exposed out from each of the back-shaped water pipes, one end is communicated with an exhaust port, and the other end is connected with a corresponding cyclonic collection tube. A dust discharging valve is arranged at the lower end of the cyclonic collection tube. The utility model combines a duster and a coal economizer together. The utility model has the advantages of compact structure, small occupation area for boiler houses, large heat-exchange surface for water supply and high temperature smoke and obvious energy saving effect.

Description

Dusting coal-saver

The utility model relates to a kind of dedusting economizer that Industrial Boiler is used.

Common cast iron gilled tube economizer, the heat transfer efficiency of preheating water tank's economizer is undesirable, so further on the reduction energy certain difficulty is being arranged; Because economizer and deduster on the existing boiler are installed separately, so it is bigger to take up room, investment cost is also higher again.

The purpose of this utility model is that a kind of compact conformation of proposition, heat transfer efficiency are higher, and has the economizer of dedusting function.

The technical measures that the utility model is taked are at vertical Guan Zhongjun of back-shaped water pipe smoke pipe to be set, and the smoke pipe two ends pass back-shaped pipe, and an end communicates with exhaust opening, and the other end is continuous with corresponding whirlwind, and the below of whirlwind is provided with ash-valve.

Fig. 1 is a configuration diagram of the present utility model;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is that the A of Fig. 2 is to view.

Below in conjunction with accompanying drawing the utility model is further described.

Housing of the present utility model (2) is provided with gas approach (10), exhaust opening (1), back-shaped water pipe has water inlet, discharge outlet, in vertical pipe (5) of back-shaped water pipe (3) smoke pipe (6) is set all, the two ends of smoke pipe (6) pass back-shaped water pipe (3), the upper end of all smoke pipes all communicates with exhaust opening (1), the lower end of every smoke pipe all connects whirlwind (8), all whirlwind are formed multicyclone, be provided with dual turnover plate type ash-valve (9) below whirlwind, boiler feedwater is flowed in the annular chamber of back-shaped water pipe.

High-temperature flue gas is entered in the housing (2) by the gas approach (10) of dedusting economizer, because the effect of dividing plate (4), flue gas is circuitous advancing between back-shaped water pipe, in entering into whirlwind (8), flue gas rotates at a high speed, grit sinks under effect of inertia, falls into dust arrester by dual turnover plate type ash-valve (9), and the flue gas after the dedusting is discharged through flue (6), exhaust opening (1).

The utility model feedwater is big with the heat exchange area of flue gas, the heat transfer coefficient height, it is higher 3 times than cast iron gilled tube economizer heat transfer coefficient, higher 5 times than preheating water tank's economizer heat transfer coefficient, its gas approach temperature is 300 ℃-350 ℃, and exhaust gas temperature drops to 150 ℃-160 ℃, feed temperature is elevated to about 90 ℃ from 20 ℃, capable of saving fuel about 20%, again since deduster and economizer be integrated, so the utlity model has energy-conservation, save land, low-cost advantage.

Claims

A kind of dedusting economizer with back-shaped water pipe (3), it is characterized in that: in vertical pipe (5) of back-shaped water pipe (3) smoke pipe (6) is set all, the two ends of smoke pipe (6) pass back-shaped water pipe (3), one end communicates with exhaust opening (1), the other end is continuous with corresponding whirlwind (8), and the below of whirlwind (8) is provided with ash-valve.