CN203044168U - Electrostatic dust precipitation cathode device in thermal power plant - Google Patents
Electrostatic dust precipitation cathode device in thermal power plant Download PDFInfo
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- CN203044168U CN203044168U CN 201320051015 CN201320051015U CN203044168U CN 203044168 U CN203044168 U CN 203044168U CN 201320051015 CN201320051015 CN 201320051015 CN 201320051015 U CN201320051015 U CN 201320051015U CN 203044168 U CN203044168 U CN 203044168U
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- thermal power
- discharge sheet
- cathode assembly
- electrostatic precipitation
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Abstract
The utility model discloses an electrostatic dust precipitation cathode device in a thermal power plant, which is used for electrostatically removing gypsum particles and ultrafine dust in desulfurized exhaust gas of the thermal power plant. The cathode device consists of a discharge sheet formed by casting and a metal wire wrapped inside the discharge sheet during casting; a plurality of continuous barb teeth are arranged at the edge at both sides of the discharge sheet; and the barb teeth are formed by punching a cut semicircular part along the edge of the discharge sheet. According to the cathode device, the discharge sheet is formed through a casting manner, and then the barb teeth are formed through a punching manner, so that the precision of the obtained barb teeth for discharging is better than pure casting molding, continuous and stable electrical arcs can be formed between adjacent barb teeth during the discharging process, a more stable electrostatic field can be formed, and the dust precipitation effect is better.
Description
Technical field
The utility model belongs to subparticle gas solid separation field of engineering technology.Be specifically related to a kind of thermal power plant electrostatic precipitation cathode assembly, it can be used for, and the static of gypsum particle and ultrafine dust removes in the desulfurization flue gas of large-size thermal power plant.
Background technology
The thermal power plant generated energy accounts for 70% of whole generated energy.And a lot of power plant units desulphurization systems do not arrange gas-gas heat exchanger (GGH), and the smoke stack emission flue gas is saturated wet flue gas, about 50 ℃ of temperature, chimney of electric plant is discharged plume and is white in color even grey, transparency extreme difference, power plant surrounding area often descend slowly and lightly white calcium plaster drip, cause serious pollution.Prior art usually adopts at the desulfurizing tower top and installs mechanical demister additional, to carrying gypsum certain removal effect is arranged, but mechanical demister long-play ubiquity harden, clogging, can't steady in a long-term move, cause the little droplet of gypsum slurries to enter atmosphere with fume emission.And conventional electrostatic precipitator processing speed is at 0.8-1.2m/s, and ability and the efficient of handling gas are very low, and equipment volume is huge, and incompatibility is used in large-size thermal power plant flue gas deep purifying system.
Disclose a kind of wet electrostatic demister cathode line among the CN201040262Y, can be used for the static demist of thermal power plant.The background technology of the prior art mentions that partly the cathode line dentalation discharge effect that existing electrostatic precipitator uses is not good, damage easily, therefore a kind of last canned paragraph that has is provided, the cathode line of middle demist section and following canned paragraph, wherein, middle demist section is continuous stepped tooth, the tooth root of the stepped tooth keel that go directly, and also the stepped tooth of both sides also will setting straggly.From the disclosed content of above-mentioned prior art, this cathode line structure is quite complicated, and the stepped tooth straggly that especially middle demist section arranges can only be made by the mode of casting, and manufacturing and installation difficulty can be quite big.And the tooth root of the stepped tooth of through keel part is tiny relatively, and structural strength is not high, is easy in use to cause keel to break and exposes steel wire wherein, thereby cause electrochemical corrosion.Particularly when mounted cathode line is twisted under the spiral situation, between the cathode line of three sections layouts, and the stepped tooth part of middle demist section, all be easy to not cause keel to break because structural strength is not high.
The utility model content
The technical problems to be solved in the utility model provides a kind of thermal power plant electrostatic precipitation cathode assembly, to reduce or to avoid problem noted earlier.
For solving the problems of the technologies described above, the utility model proposes a kind of thermal power plant electrostatic precipitation cathode assembly, being used for the desulfurization flue gas gypsum particle of thermal power plant and the static of ultrafine dust removes, the wire that described cathode assembly is wrapped in the described discharge sheet by the discharge sheet that forms of casting with when casting is formed, the both sides of the edge of described discharge sheet have a plurality of continuous prickle teeth, and described prickle tooth forms by the semicircular part branch that excises along the edge punching press of described discharge sheet.
Preferably, the diameter of described semi-circular portion is 50-55mm, and the Breadth Maximum W of described discharge sheet is 100-120mm.
Preferably, the thickness of described discharge sheet is 4-8mm.
Preferably, the width at the crown top of described prickle tooth is less than 1mm.
Preferably, described wire is that diameter is the acid metal silk of 2-3mm.
Preferably, described acid metal silk is stainless steel wire, and described discharge sheet is made by lead-antimony alloy.
Preferably, the surface of exposing the part of described discharge sheet, described wire two ends also is enclosed with one deck lead-antimony alloy.
Cathode assembly of the present utility model forms the discharge sheet by the mode of casting, mode by punching press forms the prickle tooth then, therefore the prickle tooth that is used for discharge that obtains is more far better than the precision of simple casting, thereby can be in the process of discharge, between adjacent prickle tooth, form continuous and stable electric arc, thereby can form more stable electrostatic field, dust removing effects is better.
Description of drawings
The following drawings only is intended to the utility model done and schematically illustrates and explain, does not limit scope of the present utility model.Wherein,
What Fig. 1 showed is the desulfurizer of thermal power plant and the structural representation of electrostatic precipitator;
What Fig. 2 showed is according to the thermal power plant's electrostatic precipitation anode assembly that is used for electrostatic precipitator of a specific embodiment of the present utility model and the structural representation of thermal power plant's electrostatic precipitation cathode assembly;
Fig. 3 is the structural representation according to the cathode assembly of a specific embodiment of the present utility model.
The specific embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast the description of drawings specific embodiment of the present utility model.Wherein, identical parts adopt identical label.
What Fig. 1 showed is the desulfurizer of thermal power plant and the structural representation of electrostatic precipitator, as shown in the figure, the flue gas of thermal power plant is through after the desulfurizer 1, be transported to the upper entrance 31 of electrostatic precipitator 3 via pipeline 2, handle gas afterwards by electrostatic precipitator 3 and discharged by exhaust outlet 32, and can discharge from electrostatic precipitator 3 below solid discharge mouths 33 by the solid after the electrostatic precipitation.
Electrostatic precipitator shown in Fig. 13 has a housing 34, and anode assembly and cathode assembly for electrostatic precipitation are installed in the housing 34.Principle about electrostatic precipitator can be not described in detail at this referring to CN201524521U, CN201676752U, CN201711219U and CN101670313A.Emphasis of the present utility model namely is the architecture advances to cathode assembly and the anode assembly of electrostatic precipitator, can be with reference to the description of above-mentioned prior art as for the mounting connection structure of cathode assembly and anode assembly and housing 34.
What Fig. 2 showed is according to the thermal power plant's electrostatic precipitation anode assembly 4 that is used for electrostatic precipitator 3 of a specific embodiment of the present utility model and the structural representation of thermal power plant's electrostatic precipitation cathode assembly 5, wherein, anode assembly 4 is square generally, is arranged in the housing (not showing among Fig. 2) that is square equally.Anode assembly 4 is separated into the honeycomb with a plurality of square holes 40 by fiber cloth, and each square hole 40 of described square hole shape honeycomb communicates up and down, arranges the cathode assembly 5 of a perforation in each square hole 40.Anode assembly 4 soaks into by current and possesses conductive capability, and links to each other with the earth.Cathode assembly 5 upper and lower sides respectively with the negative pole conducting of constant-current supply.
Fig. 3 shows is structural representation according to the cathode assembly 5 of a specific embodiment of the present utility model.As shown in Figure 3, can be used for according to a kind of thermal power plant of the present utility model electrostatic precipitation cathode assembly 5 that the static of gypsum particle and ultrafine dust removes in the desulfurization flue gas of thermal power plant, wherein, the wire 52 that described cathode assembly 5 is wrapped in the described discharge sheet 51 by the discharge sheet that forms of casting 51 with when casting is formed, the both sides of the edge of described discharge sheet 51 have a plurality of continuous prickle teeth 53, and described prickle tooth 53 forms by the semi-circular portion 54 of excising along the edge punching press of described discharge sheet 51.
In a specific embodiment, the diameter of described semi-circular portion 54 is 50-55mm, and the Breadth Maximum W of described discharge sheet 51 is 100-120mm, and thickness is 4-8mm.
Therefore, cathode assembly 5 of the present utility model is in manufacture process, mode by casting formed discharge sheet 51 before this, and coated metal silk 52 therein simultaneously, mode by punching press forms prickle tooth 53 then, and the prickle tooth 53 that is used for discharge that therefore obtains is more far better than the precision of simple casting.
On the other hand, prickle tooth 53 of the present utility model is when forming, and what cut away is semi-circular portion 54, therefore than the shape that is easier to hold processing.
And, cut away after the described semi-circular portion 54, described discharge sheet 51 remaining width are suitable with the diameter of the semi-circular portion 54 that cuts away, thereby can be in the process of discharge, between adjacent prickle tooth 53, form continuous and stable electric arc, thereby can form more stable electrostatic field, dust removing effects is better.
In a specific embodiment, the width at the crown top of described prickle tooth 53 is less than 1mm.The effect of Xian Dinging is in order further to improve discharging efficiency like this, to guarantee that just the semi-circular portion 54 that cuts away is the tangent arrangements of continuous edge along discharge sheet 51, guarantee the crown top width unanimity of each prickle tooth 53, thereby can obtain more uniform and stable electric field.
Further, described wire 52 is the acid metal silk of 2-3mm for diameter.Described acid metal silk can be stainless steel wire, and described discharge sheet 51 is made by lead-antimony alloy.For improving the corrosion resistance of wire 52, avoid simultaneously discharging and in long-term corrosive atmosphere, form electrochemical reaction between sheet 51 and the wire 52, preferably, the surface of exposing the part of described discharge sheet 51, described wire 52 two ends also is enclosed with one deck lead-antimony alloy.
When in use, after cathode assembly 5 is put in the anode assembly 4, also need cathode assembly 5 is twisted into spirality, can on three-dimensional, evenly distribute so that each of cathode assembly 5 is used for the prickle tooth 53 of discharge, thereby can further obtain more uniform and stable electric field.Specifically, just be arranged at described cathode assembly in the anode assembly after, the upper end of described cathode assembly is fixed, the 2-3 circle is twisted around its axis in the lower end, makes described cathode assembly twist into spirality.
Cathode assembly of the present utility model forms the discharge sheet by the mode of casting, mode by punching press forms the prickle tooth then, therefore the prickle tooth that is used for discharge that obtains is more far better than the precision of simple casting, thereby can be in the process of discharge, between adjacent prickle tooth, form continuous and stable electric arc, thereby can form more stable electrostatic field, dust removing effects is better.
Though it will be appreciated by those skilled in the art that the utility model is that mode according to a plurality of embodiment is described, and is not that each embodiment only comprises an independently technical scheme.Narration like this only is for the sake of clarity in the specification; those skilled in the art should make specification as a wholely to be understood, and regard technical scheme related among each embodiment as the mode that can be combined into different embodiment mutually understand protection domain of the present utility model.
The above only is the schematic specific embodiment of the utility model, is not in order to limit scope of the present utility model.Any those skilled in the art, the equivalent variations of doing under the prerequisite that does not break away from design of the present utility model and principle, modification and combination all should belong to the scope that the utility model is protected.
Claims (7)
1. thermal power plant's electrostatic precipitation cathode assembly, being used for the desulfurization flue gas gypsum particle of thermal power plant and the static of ultrafine dust removes, it is characterized in that, the wire that described cathode assembly is wrapped in the described discharge sheet by the discharge sheet that forms of casting with when casting is formed, the both sides of the edge of described discharge sheet have a plurality of continuous prickle teeth, and described prickle tooth forms by the semicircular part branch that excises along the edge punching press of described discharge sheet.
2. thermal power plant according to claim 1 electrostatic precipitation cathode assembly is characterized in that the diameter of described semi-circular portion is 50-55mm, and the Breadth Maximum W of described discharge sheet is 100-120mm.
3. thermal power plant according to claim 1 electrostatic precipitation cathode assembly is characterized in that the thickness of described discharge sheet is 4-8mm.
4. thermal power plant according to claim 1 electrostatic precipitation cathode assembly is characterized in that the width at the crown top of described prickle tooth is less than 1mm.
5. thermal power plant according to claim 1 electrostatic precipitation cathode assembly is characterized in that described wire is that diameter is the acid metal silk of 2-3mm.
6. thermal power plant according to claim 5 electrostatic precipitation cathode assembly is characterized in that described acid metal silk is stainless steel wire, and described discharge sheet is made by lead-antimony alloy.
7. thermal power plant according to claim 1 electrostatic precipitation cathode assembly is characterized in that the surface that the part of described discharge sheet is exposed at described wire two ends also is enclosed with one deck lead-antimony alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320051015 CN203044168U (en) | 2013-01-30 | 2013-01-30 | Electrostatic dust precipitation cathode device in thermal power plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320051015 CN203044168U (en) | 2013-01-30 | 2013-01-30 | Electrostatic dust precipitation cathode device in thermal power plant |
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| CN203044168U true CN203044168U (en) | 2013-07-10 |
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| CN 201320051015 Expired - Fee Related CN203044168U (en) | 2013-01-30 | 2013-01-30 | Electrostatic dust precipitation cathode device in thermal power plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108405187A (en) * | 2018-02-02 | 2018-08-17 | 佛山市高明区杨和金属材料专业镇技术创新中心 | A kind of cathode carrier |
-
2013
- 2013-01-30 CN CN 201320051015 patent/CN203044168U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108405187A (en) * | 2018-02-02 | 2018-08-17 | 佛山市高明区杨和金属材料专业镇技术创新中心 | A kind of cathode carrier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING ZHICHENG TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: BEIJING SIYUAN TONGNENG SCIENCE + TECHNOLOGY DEVELOPMENT CO., LTD. Effective date: 20131227 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131227 Address after: 100070 Beijing city Fengtai District Haiying Road No. 6 Building No. 10 hospital room 401 (Park) Patentee after: BEIJING ZHICHENG TECHNOLOGY CO., LTD. Address before: 100070 Beijing city Fengtai District Haiying Road No. 6 Building No. 10 hospital Patentee before: Beijing Siyuan Tongneng Science & Technology Development Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: BEIJING KEZHIJIAN ENVIRONMENT PROTECTION ENGINEERI Free format text: FORMER OWNER: BEIJING ZHICHENG TECHNOLOGY CO., LTD. Effective date: 20140605 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140605 Address after: 100070 Beijing city Fengtai District Haiying Hospital No. 6 Building No. 10 Room 201 Patentee after: BEIJING KZJ ENVIRONMENTAL PROTECTION ENGINEERING CO., LTD. Address before: 100070 Beijing city Fengtai District Haiying Road No. 6 Building No. 10 hospital room 401 (Park) Patentee before: BEIJING ZHICHENG TECHNOLOGY CO., LTD. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20180130 |