CN102374821A

CN102374821A - Rectification and guidance combined forced air cooling multi-tube cooler

Info

Publication number: CN102374821A
Application number: CN2010102594186A
Authority: CN
Inventors: 童庆; 王浩明; 孙礼明
Original assignee: Hefei Cement Research and Design Institute Co Ltd
Current assignee: Hefei Cement Research and Design Institute Co Ltd
Priority date: 2010-08-16
Filing date: 2010-08-16
Publication date: 2012-03-14
Anticipated expiration: 2030-08-16
Also published as: CN102374821B

Abstract

The invention relates to a rectification and guidance combined forced air cooling multi-tube cooler and belongs to the technical field of air coolers. The invention aims to provide the rectification and guidance combined forced air cooling multi-tube cooler, which has a reasonable structure and can effectively improve the flow state of inlet airflow, reduce impact abrasion of large-particle dust in dusty fume on the cooler and reduce operation resistance of the cooler. The rectification and guidance combined forced air cooling multi-tube cooler comprises a box body, ash hoppers, tube bundle units, a gas collecting box and axial flow fans, wherein the tops of the outer sides of two adjacent ash hoppers (1) are provided with an air inlet pipeline (6) and an air outlet pipeline (5); a fume rectification device (61) which has a grid-shaped cross section and consists of a plurality of fins is arranged in the air inlet pipeline; and a pneumatic shutter type guidance device (62) is arranged on a combining part of the air inlet pipeline and an ash hopper. The rectification and guidance combined forced air cooling multi-tube cooler has the characteristics of simple structure, environmental protection, high economy and applicability, energy conservation, good cooling effect and the like.

Description

Rectification and water conservancy diversion combined type air blast cooling multitube cooler

Technical field

The present invention relates to a kind of rectification and water conservancy diversion combined type air blast cooling multitube cooler, belong to the aerial cooler technical field.

Background technology

In recent years, industries such as cement, iron and steel, metallurgy adopt multitube cooler that the high temperature dust flue gas is lowered the temperature processing very generally.Multitube cooler is a principle of utilizing the airduct surface radiating, reaches the purpose of flue gas cool-down in the pipe through the high-temperature flue gas in managing and the heat exchange of pipe outer air.Multitube cooler is divided into the air-cooled and two kinds of forms of air blast cooling of free convection; Air-cooled with respect to free convection; Air blast cooling adopts axial flow blower that cold air is flow through outside restraining at a relatively high speed; Because of its heat exchange effect remarkable, flue gas cool-down better effects if, and equipment volume is dwindled relatively and obtained broader applications.But for conventional air blast cooling multitube cooler; It is inner after the high temperature dust flue gas gets into multitube cooler top plenum chamber at first at a high speed, directly to get into tube bank; Certainly will cause the inner local resistance of cooling device to increase suddenly; Simultaneously ash-laden gas middle and high concentration, high abrasion particle cause seriously plenum chamber and tube bank inwall and to wash away acceleration equipment wearing and tearing, aging; Reduction (like winter) along with ambient temperature; Although conventional multitube cooler can be realized energy conservation object through reducing axial flow blower operation platform number, ash-laden gas still must pass through top plenum chamber, tube bank; Discharged by the outlet of bottom ash bucket, the equipment running resistance is still higher.

Summary of the invention

The objective of the invention is to deficiency to prior art; Provide a kind of rational in infrastructure; Can effectively improve the inlet air flow fluidised form, big dust particle reduces the rectification and the water conservancy diversion combined type air blast cooling multitube cooler of cooler running resistance to the impact wear of cooler in the minimizing ash-laden gas.

Its technical scheme is: a kind of rectification and water conservancy diversion combined type air blast cooling multitube cooler; Comprise casing, ash bucket, tube bank unit, plenum chamber and axial flow blower, it is characterized in that: the outside top of two adjacent ash buckets is respectively equipped with intake stack and wind pipe; The flue gas fairing that the cross section that is made up of the multi-disc fin is lattice-shaped is installed in the intake stack; The joint portion of intake stack and ash bucket is equipped with pneumatic venetian blind type guiding device.

Its technique effect is: change the upper end that is located at two adjacent ash bucket one sides owing to will get into the intake stack of the ash-laden gas of cooler; And flue gas fairing and guiding device are set in intake stack, thus effectively improved the fluidised form of air intake air-flow, reduced the running resistance of cooler; Reduced in the ash-laden gas big dust particle to the impact wear of cooler; Prolonged the service life of plenum chamber and tube bank, avoided the ash-laden gas in the existing cooler directly to get into tube bank inside from plenum chamber, the running resistance that causes is big; Ash-laden gas middle and high concentration, high abrasion particle are to the problems such as impact, wearing and tearing of plenum chamber and tube bank inwall.Have characteristics such as simple in structure, economic and practical, environmental protection and energy saving and good cooling results.

The accompanying drawing content

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the fairing sketch map.

The specific embodiment

Like Fig. 1, shown in 2, a kind of rectification and water conservancy diversion combined type air blast cooling multitube cooler comprise casing, ash bucket, tube bank unit, plenum chamber and axial flow blower.The outside top of two adjacent ash buckets 1 is respectively equipped with intake stack 6 and wind pipe 5.Intake stack is the intake stack of gradual-enlargement type from top to bottom; The flue gas fairing 61 that the cross section that is made up of the multi-disc fin is lattice-shaped is installed in it; High-speed and high-temperature ash-laden gas to getting into cooler carries out rectification in advance, to improve air intake air-flow fluidised form, reduces local resistance.The joint portion of intake stack and ash bucket is equipped with pneumatic venetian blind type guiding device 62, makes the dust of larger particles in the ash-laden gas directly fall into ash bucket, to reduce its impact, wearing and tearing to follow-up cooler bundle and plenum chamber 3.

Be divided into two relatively independent spaces by flap valve 7 in the plenum chamber 3 on casing top, corresponding with two adjacent tube bank unit 2 respectively.The joint portion of adjacent ash bucket also is equipped with flap valve 7.

Its course of work is: when high-temperature flue gas being carried out the routine cooling; Open the flap valve 7 in the multitube cooler top plenum chamber 3; And the flap valve of closing adjacent ash bucket 1 joint portion, bottom; The high temperature dust flue gas through the fairing 61 in the intake stack 6, improves air intake air-flow fluidised form earlier, and through the pneumatic venetian blind type guiding device 62 of intake stack 5 with the ash bucket joint portion; Oarse-grained dust in the ash-laden gas is collected in advance collection, to reduce its impact, wearing and tearing to follow-up cooler bundle and plenum chamber.After ash-laden gas gets into ash bucket,, upwards get into the tube bank unit 2 of a side, it is cooled off by axial flow blower 4 so alter course because the flap valve of adjacent ash bucket joint portion cuts out; Cooled ash-laden gas passes the flap valve that is arranged in the plenum chamber again through the plenum chamber on this side pipe of tube bank entering Shu Danyuan top, gets into the adjacent tube bank unit of opposite side and cools off, is finally discharged by the wind pipe 5 that is arranged on the adjacent ash bucket.

When can satisfying nature, ambient temperature cools off when temperature required; The axial flow blower 4 of then can stopping transport; Flap valve 7 in the closure set gas tank 3, and open the flap valve of adjacent ash bucket joint portion, after ash-laden gas gets into cooler from intake stack; Behind rectification and water conservancy diversion, directly discharge from the wind pipe of adjacent ash bucket.

Claims

1. rectification and water conservancy diversion combined type air blast cooling multitube cooler comprise casing, ash bucket, tube bank unit, plenum chamber and axial flow blower, and it is characterized in that: the outside top of adjacent two ash buckets (1) is respectively equipped with intake stack (6) and wind pipe (5); The flue gas fairing (61) that the cross section that is made up of the multi-disc fin is lattice-shaped is installed in the intake stack; The joint portion of intake stack and ash bucket is equipped with pneumatic venetian blind type guiding device (62).

2. a kind of rectification according to claim 1 and water conservancy diversion combined type air blast cooling multitube cooler is characterized in that: it is characterized in that: intake stack (6) is the pipeline of gradual-enlargement type from top to bottom.

3. a kind of rectification according to claim 1 and water conservancy diversion combined type air blast cooling multitube cooler; It is characterized in that: be divided into two relatively independent spaces by flap valve (7) in the plenum chamber on casing top (3), corresponding with adjacent two tube bank unit (2) respectively; The joint portion of adjacent two ash buckets (1) also is equipped with flap valve (7).