CN203916902U - A kind of wet electrical dust precipitator drainage arrangement - Google Patents

A kind of wet electrical dust precipitator drainage arrangement Download PDF

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Publication number
CN203916902U
CN203916902U CN201420325036.2U CN201420325036U CN203916902U CN 203916902 U CN203916902 U CN 203916902U CN 201420325036 U CN201420325036 U CN 201420325036U CN 203916902 U CN203916902 U CN 203916902U
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CN
China
Prior art keywords
pipe
blow
overflow
overflow pipe
drainage arrangement
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Expired - Lifetime
Application number
CN201420325036.2U
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Chinese (zh)
Inventor
田峰
孙久荣
李兆华
朱琳
邱历军
房军
武建波
滕云涛
贾连双
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Jinan Iron and Steel Group Co Ltd
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Jinan Iron and Steel Group Co Ltd
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Priority to CN201420325036.2U priority Critical patent/CN203916902U/en
Application granted granted Critical
Publication of CN203916902U publication Critical patent/CN203916902U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model provides the technical scheme of a kind of wet electrical dust precipitator with drainage arrangement, this scheme comprises the blow-off pipe being connected with the lower end of electric duster ash bucket, one side of described blow-off pipe is provided with at least two outlet pipes, described blow-off pipe is communicated with by overflow pipe with each outlet pipe, the water inlet of each overflow pipe is positioned on the differing heights of blow-off pipe, and the height of the water inlet of this overflow pipe is lower than the height of overfall; The height of overflow pipe overfall topmost, lower than the height of cathode of electric dust collector framework, is provided with blowoff valve on the blow-off pipe of overflow pipe water inlet bottom bottom, on each overflow pipe, is provided with overflow valve.Blow-off pipe described in this scheme is communicated with at least two acclivitous overflow pipes from top to bottom, if stopping up appears in the overflow pipe of bottom, the overflow pipe on this obstruction overflow pipe top still can play overflow effect, thereby has guaranteed the safe operation of electric cleaner.

Description

A kind of wet electrical dust precipitator drainage arrangement
Technical field
The utility model relates to a kind of drainage arrangement, especially a kind of wet electrical dust precipitator drainage arrangement.
Background technology
Coal gas electric cleaner in iron and steel enterprise adopts single overflow pipe to carry out draining, this drainage pattern there will be and causes not in time overflow pipe bottom to be stopped up or maintenance has foreign matter to fall into overflow pipe bottom after finishing to cause the situation of impeded drainage to occur because of blowdown, above situation all can cause that electric cleaner water level inside continues rise and cause: when water level arrives cathode frame position, high voltage electric field has a power failure, and electric cleaner is stopped transport; Water level surpasses after the certain distance of explosion venting valve lower end, thereby explosion venting valve is opened and caused water and even gas leak initiation security incident under Water Pressure; Deduster water level inside continues rising may cause structural failure because of load-bearing, as side plate, ash bucket are torn, steel structure base and body frame distortion etc.Therefore, how guaranteeing drainage arrangement normal draining in the situation that overflow pipe stops up of electric cleaner, guarantee the security of draining, is the technical issues that need to address.This is the existing weak point of prior art.
Summary of the invention
Technical problem to be solved in the utility model, be exactly for the existing deficiency of prior art, and a kind of simple in structure, convenient and practical, the safe wet electrical dust precipitator technical scheme with drainage arrangement is provided, blow-off pipe described in this scheme is communicated with at least two acclivitous overflow pipes from top to bottom, if stopping up appears in the overflow pipe of bottom, the overflow pipe on this obstruction overflow pipe top still can play overflow effect, thereby has guaranteed the safe operation of electric cleaner.
This programme is achieved by the following technical measures: a kind of wet electrical dust precipitator drainage arrangement, comprise the blow-off pipe being connected with the lower end of electric duster ash bucket, one side of described blow-off pipe is provided with at least two outlet pipes, described blow-off pipe is communicated with by overflow pipe with each outlet pipe, the water inlet of each overflow pipe is positioned on the differing heights of blow-off pipe, and the height of the water inlet of this overflow pipe is lower than the height of overfall; The height of overflow pipe overfall topmost, lower than the height of cathode of electric dust collector framework, is provided with blowoff valve on the blow-off pipe of overflow pipe water inlet bottom bottom, on each overflow pipe, is provided with overflow valve.
Further improvement of the utility model also has, distance between the water inlet of adjacent two overflow pipes is 1/5th to 1/4th of blow-off pipe length, distance is long, when the overflow pipe of bottom stops up, there is risk in the overflow pipe overflow on top, do not have the effect of safe overflow, distance is too short, has the problem of processing and manufacturing difficulty.
Further improvement of the utility model also has, and described outlet pipe is positioned at the outside of electric cleaner shell below, and the horizontal range between outlet pipe and electric cleaner shell is L, and L is 300-700mm, has reduced the floor space of blowdown apparatus.
Further improvement of the utility model also has, and on the blow-off pipe near ash bucket place, is provided with valve, and this valve is normally open valve door.
Further improvement of the utility model also has, on the blow-off pipe on described blowoff valve top, be communicated with the second blow-off pipe, on described the second blow-off pipe, be provided with the second blowoff valve, the pipe diameter of described the second blow-off pipe is less than the diameter of blow-off line, in blowdown process, need to regularly open the second blowoff valve the mud in blow-off pipe is ejected, the diameter of cause the second blow-off pipe is less, displacement is little, so in blowdown process, the problem of the gas leak that needn't worry can cause because displacement is excessive; In addition, the second blow-off pipe and the second blowoff valve also play the effect whether pipeline stops up that detects, under normal circumstances, while opening the second blowoff valve, have a small amount of mud and discharged by the second blow-off pipe, if the second blow-off pipe continues to carry out sewer, illustrate and in pipeline, have obstruction.
Further improvement of the utility model also has, described outlet pipe has two, described overflow pipe has two, under normal circumstances, the overflow pipe of lower end plays overflow effect, and under abnormal conditions, the overflow pipe of lower end does not play overflow effect, the overflow pipe of upper end forms new drainage system as standby overflow pipe and drainage arrangement, makes the structure of drainage arrangement more simple, is easy to control when adopting two overflow pipes to guarantee normal overflow.
Further improvement of the utility model also has, and described blow-off pipe parallels with outlet pipe.
Technical characterstic of the present utility model and good effect are:
(1) side of blow-off pipe described in the utility model is provided with at least two outlet pipes, described blow-off pipe is communicated with by overflow pipe with each outlet pipe, the water inlet of each overflow pipe is positioned on the differing heights of blow-off pipe, the height of the water inlet of this overflow pipe is lower than the height of overfall, when the bottom of overflow pipe stop up or maintenance after while having foreign matter to fall into overflow pipe bottom to cause water level to rise, the overflow pipe on this obstruction place top starts overflow, thereby the problems such as the gas leak that produces and electric cleaner structural failure have been avoided in prior art stopping up because of overflow pipe, the safety that has ensured electric cleaner is normally moved,
(2) in the utility model the height of the water inlet of overflow pipe lower than the height of overfall, overflow pipe is connected blow-off pipe and outlet pipe, this pipeline communication mode has guaranteed that when realizing relief function in pipeline, coal gas is not revealed, and makes overflow pipe and drainpipe play good water seal effect;
(3) height of the overflow pipe overfall of the top is lower than the height of cathode of electric dust collector framework, in the time of guaranteeing overflow pipe overflow like this, the water level of blow-off pipe inside is lower than the height of cathode frame, guaranteed that cathode frame can not be submerged, in addition, in electric cleaner, this water level, not within the scope of effective electric field, thereby can not exert an influence to field operation.
As can be seen here, the utility model compared with prior art, has substantive distinguishing features and progress, and the beneficial effect of its enforcement is also apparent.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model specific embodiment.
In figure, 1 is positive plate, and 2 is cathode frame, 3 is ash bucket, and 4 is valve, and 5 is overflow pipe, 6 is blow-off pipe, and 7 is overflow valve, and 8 is water inlet, 9 is outlet pipe, and 10 is the second blowoff valve, and 11 is blowoff valve, 12 is overfall, 13 electric cleaner shells, and 14 is the second blow-off pipe, 15 is overflow pipe, and 16 is overfall.
The specific embodiment
For clearly demonstrating the technical characterstic of this programme, below by a specific embodiment, and in conjunction with its accompanying drawing, this programme is set forth.
By accompanying drawing, can find out, a kind of wet electrical dust precipitator drainage arrangement, comprise the blow-off pipe 6 being connected with the lower end of electric duster ash bucket 3, one side of described blow-off pipe 6 is provided with at least two outlet pipes 9, described blow-off pipe 6 is communicated with by overflow pipe 5 with each outlet pipe 9, the water inlet 8 of each overflow pipe 5 is positioned on the differing heights of blow-off pipe 6, the height of the water inlet 8 of this overflow pipe 5 is lower than the height of overfall 16, the interface that water inlet described in the utility model 8 is connected with blow-off pipe 6 for overflow pipe 5, the interface that overfall described in the utility model 16 is connected with outlet pipe 9 for overflow pipe 5.The height of overflow pipe overfall 16 is topmost lower than the height of cathode of electric dust collector framework 2, guaranteed that the water level in blow-off pipe 6 can not flood cathode frame 2 and positive plate 1, on the blow-off pipe 6 of overflow pipe water inlet 8 bottoms bottom, be provided with blowoff valve 11, on each overflow pipe 5, be provided with overflow valve 7.Distance between the water inlet 8 of adjacent two overflow pipes is 1/5th to 1/4th of blow-off pipe 6 length.Described outlet pipe 9 is positioned at the outside of electric cleaner shell 13 belows, and the horizontal range between outlet pipe 9 and electric cleaner shell 13 is L, and L is 300-700mm.On blow-off pipe 6 near ash bucket 3 places, be provided with valve 4.On the blow-off pipe 6 on described blowoff valve 11 tops, be communicated with the second blow-off pipe 14, on described the second blow-off pipe 14, be provided with the second blowoff valve 10.The pipe diameter of described the second blow-off pipe 14 is less than the pipe diameter of blow-off pipe 6.The utility model is provided with two overflow pipes: 15, two outlet pipes 9 of overflow pipe 5 and overflow pipe.Described blow-off pipe 6 parallels with outlet pipe 9.
In the situation of the normal operation of drainage arrangement, valve 4, overflow valve 7 need to be opened, the second blowoff valve 10 and blowoff valve 11 are closed, overflow pipe 15 overflows of lower end and the overflow pipe 5 not overflows of upper end, because the pressure in blow-off pipe 6 is greater than extraneous atmospheric pressure, so the liquid level in upper end overflow pipe 5 is identical with the height of lower end overflow pipe 15 overfalls 12, and higher than the height of blow-off pipe 6 interior liquid levels, the pressure that overflow pipe 15 and difference in height in blow-off pipe 6 are coal gas; If the overflow pipe of lower end 15 stops up or cause overflow pipe impeded drainage because maintenance foreign matter falls into bottom overflow pipe 15, now, the overflow pipe 15 of lower end produces certain pressure, thereby make the liquid level in blow-off pipe 6 increase gradually, rise to after certain altitude, the overflow pipe 5 of upper end starts overflow, thereby has guaranteed the normal operation of whole electric cleaner.
If while overhauling, blowoff valve 11 need to be opened, the second blowoff valve 10 cuts out.
Although above-mentioned, by reference to the accompanying drawings the specific embodiment of utility model is described; but the not restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.

Claims (8)

1. a wet electrical dust precipitator drainage arrangement, comprise the blow-off pipe being connected with the lower end of electric duster ash bucket, it is characterized in that: a side of described blow-off pipe is provided with at least two outlet pipes, described blow-off pipe is communicated with by overflow pipe with each outlet pipe, the water inlet of each overflow pipe is positioned on the differing heights of blow-off pipe, and the height of the water inlet of this overflow pipe is lower than the height of overfall; The height of overflow pipe overfall topmost, lower than the height of cathode of electric dust collector framework, is provided with blowoff valve on the blow-off pipe of overflow pipe water inlet bottom bottom, on each overflow pipe, is provided with overflow valve.
2. wet electrical dust precipitator drainage arrangement according to claim 1, is characterized in that: the distance between the water inlet of adjacent two overflow pipes is 1/5th to 1/4th of blow-off pipe length.
3. wet electrical dust precipitator drainage arrangement according to claim 1 and 2, is characterized in that: described outlet pipe is positioned at the outside of electric cleaner shell below, and the horizontal range between outlet pipe and electric cleaner shell is L, and L is 300-700mm.
4. wet electrical dust precipitator drainage arrangement according to claim 1 and 2, is characterized in that: on the blow-off pipe near ash bucket place, be provided with valve.
5. wet electrical dust precipitator drainage arrangement according to claim 1 and 2, is characterized in that: on the blow-off pipe on described blowoff valve top, be communicated with the second blow-off pipe, on described the second blow-off pipe, be provided with the second blowoff valve.
6. wet electrical dust precipitator drainage arrangement according to claim 5, is characterized in that: the pipe diameter of described the second blow-off pipe is less than the pipe diameter of blow-off pipe.
7. wet electrical dust precipitator drainage arrangement according to claim 1, is characterized in that: described outlet pipe has two, and described overflow pipe has two.
8. wet electrical dust precipitator drainage arrangement according to claim 1, is characterized in that: described blow-off pipe parallels with outlet pipe.
CN201420325036.2U 2014-06-18 2014-06-18 A kind of wet electrical dust precipitator drainage arrangement Expired - Lifetime CN203916902U (en)

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Application Number Priority Date Filing Date Title
CN201420325036.2U CN203916902U (en) 2014-06-18 2014-06-18 A kind of wet electrical dust precipitator drainage arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420325036.2U CN203916902U (en) 2014-06-18 2014-06-18 A kind of wet electrical dust precipitator drainage arrangement

Publications (1)

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CN203916902U true CN203916902U (en) 2014-11-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104001624A (en) * 2014-06-18 2014-08-27 济钢集团有限公司 Water drainage device for wet-type electric precipitation device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104001624A (en) * 2014-06-18 2014-08-27 济钢集团有限公司 Water drainage device for wet-type electric precipitation device

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