CN-224215128-U - Drainage device, converter gas recovery pipe network and converter gas recovery system

Abstract

The application discloses a drainage device which is used for draining condensed water in a gas pipeline and comprises a drainage funnel, wherein the drainage funnel is provided with a funnel cavity, the drainage funnel comprises an upper drainage part and a lower drainage part which are sequentially arranged from top to bottom, the upper drainage part is used for being connected with the gas pipeline and is provided with a truncated cone-shaped upper cavity, the lower drainage part is provided with a truncated cone-shaped lower cavity, the upper drainage part and the lower drainage part are in threaded connection to form the funnel cavity in a surrounding mode, the inner diameter of the bottom of the upper cavity is 8-12 mm smaller than the inner diameter of the top of the upper cavity, the inner diameter of the top of the lower cavity is the same as the inner diameter of the bottom of the upper cavity, and a drainer is connected with the bottom of the lower drainage part.

Inventors

• HU CHAO
• ZHENG XIANMING
• DENG CHANGLIANG
• ZHAO JINGWEI
• ZHAO ZHEN
• FENG QI

Assignees

• 北京首钢股份有限公司

Dates

Publication Date

20260508

Application Date

20250618

Claims (10)

1. 1. A drainage device for draining condensed water in a gas pipe, the drainage device comprising: The drainage funnel is provided with a funnel cavity, the drainage funnel comprises an upper drainage part and a lower drainage part which are sequentially arranged from top to bottom, the upper drainage part is used for being connected with the gas pipeline and is provided with a round table-shaped upper cavity, the lower drainage part is provided with a round table-shaped lower cavity, the upper drainage part and the lower drainage part are in threaded connection so as to form the funnel cavity in a surrounding manner, the bottom inner diameter of the upper cavity is 8-12 mm smaller than the top inner diameter, and the top inner diameter of the lower cavity is the same as the bottom inner diameter of the upper cavity; and the drainer is connected with the bottom of the lower drainage part.
2. 2. The drainage device of claim 1, wherein an upper connecting ring is arranged at the bottom of the upper drainage part, a lower connecting ring is arranged at the top of the lower drainage part, and the drainage funnel further comprises a plurality of threaded fasteners which are sequentially arranged at intervals along the circumferential direction of the drainage funnel, and the threaded fasteners are connected with the upper connecting ring and the lower connecting ring.
3. 3. The drainage device of claim 2, wherein the threaded fastener comprises a screw and a nut, the screw is welded with the upper connecting ring, the lower connecting ring is provided with through holes which are the same as the screw in number and correspond to each other one by one, and the lower end of the screw passes through the corresponding through hole and is connected with the corresponding nut.
4. 4. The drainage device of claim 2, wherein the threaded fastener comprises a screw and a nut, the upper connecting ring is provided with first through holes which are the same as the screws in number and are in one-to-one correspondence, and the lower connecting ring is provided with second through holes which are the same as the screws in number and are in one-to-one correspondence; the nut is welded with the upper connecting ring and is positioned above the upper connecting ring, and the nut is coaxially communicated with the corresponding first through hole; the upper end of the screw sequentially penetrates through the corresponding second through hole and the corresponding first through hole and is connected with the corresponding nut.
5. 5. The drainage device of claim 2, wherein the upper connecting ring and the lower connecting ring are both horizontally arranged, and a sealing ring is arranged between the upper connecting ring and the lower connecting ring.
6. 6. The drainage device of any of claims 1-5, wherein the bottom inner diameter of the upper chamber is 70 mm-90 mm.
7. 7. The drain according to any one of claims 1 to 5, wherein the height dimension of the upper drain is not more than 30mm.
8. 8. The drainage device of any one of claims 1 to 5, further comprising a drain valve, wherein a drop tube is provided at a bottom of the lower drain portion, and the drain valve is screwed to the drop tube and the drain.
9. 9. A converter gas recovery network comprising: The gas pipeline is used for conveying converter gas; The water drain device according to any one of claims 1 to 8, wherein a plurality of water drains are provided, the plurality of water drains are spaced apart from the gas pipe, and the upper water drain portion is welded to the gas pipe.
10. 10. A converter gas recovery system, comprising: a converter; The converter gas recovery network of claim 9, provided with a fume hood located above a mouth of said converter.

Description

Drainage device, converter gas recovery pipe network and converter gas recovery system Technical Field The application belongs to the technical field of drainage of gas pipelines, and particularly relates to a drainage device, a converter gas recovery pipe network and a converter gas recovery system. Background The converter steelmaking can generate a large amount of wet gas, and the wet gas is conveyed to a storage cabinet and each user through a pipeline. The wet gas pipeline is provided with a gas drainer at intervals, so that condensed water in the gas pipeline enters the gas drainer through the downpipe and is discharged through the gas drainer, and the blockage of the gas conveying pipeline and the incapability of normal operation of equipment and even the endangerment of personal safety are avoided. The connecting mode of the downpipe and the gas pipeline is funnel connection, namely, the condensed water in the gas pipeline is collected by the funnel, the connecting mode is that the open end at the top of the funnel is welded on the gas pipeline, the necking end at the bottom of the funnel is welded with the downpipe, and the other end of the downpipe is connected with a gate valve (the water is controlled by the switch of the gate valve). Because the gas produced by the converter contains iron oxide particles, lime, fluorite and other impurities, and the condensed water is mostly hard water, and calcium, magnesium and other substances which are easy to scale are contained in the water, after the funnel runs for a long time, the impurities, calcium and magnesium substances in the condensed water form hard scales on the inner wall of the funnel, the necking part at the bottom of the funnel and the downpipe, and a large amount of hard scales can block the interior of the funnel, the necking part at the bottom and the downpipe along with the gradual increase of the hard scales. In the related art, the sluice valve is detached, and then the downpipe and the interior of the funnel are cleaned reversely through the downpipe outlet at the lower end of the downpipe at the detaching part, but the cleaning effect is poor, and the collection function and the drainage function of the funnel are affected. Disclosure of Invention The application provides a drainage device, a converter gas recovery pipe network and a converter gas recovery system, which aim to solve the technical problem of poor cleaning effect of hard scale of a funnel at present. In a first aspect of the present application, there is provided a drainage device for draining condensed water in a gas pipe, the drainage device comprising: The drainage funnel is provided with a funnel cavity, the drainage funnel comprises an upper drainage part and a lower drainage part which are sequentially arranged from top to bottom, the upper drainage part is used for being connected with the gas pipeline and is provided with a round table-shaped upper cavity, the lower drainage part is provided with a round table-shaped lower cavity, the upper drainage part and the lower drainage part are in threaded connection so as to form the funnel cavity in a surrounding manner, the bottom inner diameter of the upper cavity is 8-12 mm smaller than the top inner diameter, and the top inner diameter of the lower cavity is the same as the bottom inner diameter of the upper cavity; and the drainer is connected with the bottom of the lower drainage part. In some embodiments, the bottom of the upper drainage part is provided with an upper connecting ring, the top of the lower drainage part is provided with a lower connecting ring, and the drainage funnel further comprises a plurality of threaded fasteners which are sequentially arranged at intervals along the circumferential direction of the drainage funnel, and the threaded fasteners are connected with the upper connecting ring and the lower connecting ring. In some embodiments, the threaded fastener comprises a screw and a nut, the screw is welded with the upper connecting ring, the lower connecting ring is provided with through holes which are the same in number and in one-to-one correspondence with the number of connecting pieces, and the lower end of the screw passes through the corresponding through holes and is connected with the nut. In some embodiments, the threaded fastener comprises a screw and a nut, the upper connecting ring is provided with first through holes which are the same in number and in one-to-one correspondence with the screws, and the lower connecting ring is provided with second through holes which are the same in number and in one-to-one correspondence with the screws; the upper end of the screw sequentially penetrates through the corresponding second through hole and the corresponding first through hole and is connected with the corresponding nut. In some embodiments, the upper connecting ring and the lower connecting ring are both horizontally arranged, and a sealing ring is arranged between the upper