CN202951362U - Bag-type dust remover with heat exchange coil pipe - Google Patents
Bag-type dust remover with heat exchange coil pipe Download PDFInfo
- Publication number
- CN202951362U CN202951362U CN 201220582466 CN201220582466U CN202951362U CN 202951362 U CN202951362 U CN 202951362U CN 201220582466 CN201220582466 CN 201220582466 CN 201220582466 U CN201220582466 U CN 201220582466U CN 202951362 U CN202951362 U CN 202951362U
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- Prior art keywords
- heat exchanger
- sack cleaner
- exchanger coil
- bag
- dust remover
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Abstract
The utility model discloses a bag-type dust remover with a heat exchange coil pipe. The bag-type dust remover is connected with a water-coal-slurry boiler, wherein the bag-type dust remover is provided with the heat exchange coil pipe which is used for accessing the water-coal-slurry boiler, timing discharging, and conducting discharging steam. The heat exchange coil pipe is arranged on the inner wall of the bag-type dust remover in a surrounding mode and extends upwards. The heat exchange coil pipe is arranged in the bag-type dust remover and accessed into a boiler which is originally wasted to conduct discharging steam, the interior of the bag-type dust remover is heated, temperature of smoke is improved, moisture condensation of the smoke is prevented, and the bag-type dust remover achieves the aims that indirect heating of the smoke is conducted, and simultaneously unit consumption of heating energy is not increased.
Description
Technical field
The utility model relates to the dust arrester field, relates in particular to a kind of sack cleaner with heat exchanger coil.
Background technology
Can produce flue gas in fuel combustion process in boiler, the temperature that in flue gas, steam starts to condense is called dew point, and the sulfur content in fuel is higher, and dew-point temperature is higher.And in different combustion systems, different fuel and fuel, different content of beary metal (even sulfur content in fuel is identical) etc. all can make the dew-point temperature of flue gas change.If the water content in flue gas is 10%, SO
3Content while being reached for 10ppm, the dew-point temperature of flue gas will reach approximately 135 ℃, if take water-coal-slurry as fuel, the water content in flue gas can be up to 35%, and generally the dew-point temperature of flue gas is set as to 140 ℃.The flue gas produced in boiler also needs to carry out dedusting through the dust arrester of for example sack cleaner and so on, for sack cleaner is normally moved, the operating condition temperature of deduster must be higher than the flue gas dew point temperature more than 20 ℃, once flue gas is at the deduster internal condensation, will cause dust layer on filter bag stick with paste bag and harden, the dust-removal cloth-bag running resistance rises rapidly, affects the normal operation of system.Even, the SO in flue gas
3Can irreversible the reaction occur and generate H with water
2SO
4, sulfuric acid will be constantly on filter bag or dust vaporific knot poly-, subsequently filter bag and equipment metal parts are carried out to oxide etch.If make H
2SO
4Convert gaseous state to, temperature must be raised to more than 315 ℃ just likely again.Therefore, when the combustion process tail flue gas is purified, must be noted that to control well the temperature of flue gas, the dewfall of the flue gas prevented.Prevent the smoke condensation of deduster, except when manufacturing the deduster body, prevent outside the leaking out of part gap, the most effective mode is exactly to the flue gas measure of being heated in deduster inside.
At present pulsed jet cloth filter solves smoke condensation, use be that insulation is processed or the electric heating piece auxiliary heating, the former is passive device, can only the reducing smoke cooling rate, the latter must increase extra power consumption (extra operating cost).
Therefore, prior art has yet to be improved and developed.
The utility model content
In view of above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of sack cleaner with heat exchanger coil, is intended to solve existingly prevent that the smoke condensation means cost in sack cleaner is high, the problem of weak effect.
The technical solution of the utility model is as follows:
A kind of sack cleaner with heat exchanger coil, be connected in coal water slurry boiler, wherein, described sack cleaner is provided with a heat exchanger coil for the blowdown steam that passes into the coal water slurry boiler regular discharge, described heat exchanger coil is around the inwall that is arranged on sack cleaner, and extends upward.
The described sack cleaner with heat exchanger coil, wherein, described heat exchanger coil is arranged on the inwall of described sack cleaner with two-tube arrangement architecture.
The described sack cleaner with heat exchanger coil, wherein, described heat exchanger coil is DN38 * 5mm heat exchanger coil.
The described sack cleaner with heat exchanger coil, wherein, described sack cleaner is provided with one for the smoke inlet that passes into flue gas and for discharging the exhanst gas outlet of flue gas.
The described sack cleaner with heat exchanger coil, wherein, described smoke inlet is arranged on the lower end of sack cleaner, and described exhanst gas outlet is arranged on the upper end of sack cleaner.
Beneficial effect: the utility model is by being provided with one for passing into the heat exchanger coil of blowdown steam at sack cleaner, and this heat exchanger coil is passed into to the boiler blow-off steam that script is wasted, thereby the inside of sack cleaner is heated, flue-gas temperature wherein is improved, prevented the dewfall of flue gas, reached when flue gas is carried out to indirect, can not increase again the purpose of the unit consumption of heat energy.
The accompanying drawing explanation
Fig. 1 is the first visual angle structural representation of the utility model with the sack cleaner of heat exchanger coil.
Fig. 2 is the second visual angle structural representation of the utility model with the sack cleaner of heat exchanger coil.
The specific embodiment
The utility model provides a kind of sack cleaner with heat exchanger coil, clearer, clear and definite for making the purpose of this utility model, technical scheme and effect, below the utility model is further described.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The sack cleaner with heat exchanger coil that the utility model provides, as shown in Figure 1, described sack cleaner 100 is provided with a heat exchanger coil 130 for passing into blowdown steam, and described heat exchanger coil 130 is around the inwall that is arranged on sack cleaner 100, and extends upward.
The utility model is exactly to be passed in heat exchanger coil 130 by the blowdown steam by the coal water slurry boiler regular discharge, thereby has avoided the waste of heat energy, can improve again the temperature of sack cleaner 100 inner flue gases, prevents that flue gas is at the deduster internal condensation.
Described blowdown vapor (steam) temperature is about 190 ℃, it can make the temperature of flue gas rise to 160 ℃ from 140 ℃, and the temperature of smoke condensation is generally 140 ℃, so the temperature after last flue gas is greater than 20 ℃ of left and right higher than the temperature of dewfall, reached designing requirement.
Further, described heat exchanger coil 130 is arranged on the inwall of described sack cleaner 100 with two-tube arrangement architecture.Further to improve the speed of temperature heating, improve the efficiency of heating surface.
Further, described heat exchanger coil 130 is DN38 * 5mm heat exchanger coil.Described heat exchanger coil 130 preferably adopts DN38 * 5mm seamless pipe to make heat exchanger coil.
Further, described sack cleaner 100 is provided with smoke inlet 110 and the exhanst gas outlet 120 for discharging flue gas for passing into flue gas, shown in Fig. 1 and Fig. 2.Described heat exchanger coil is exactly to heat and carry out dust removal process be passed into flue gas sack cleaner 100 from smoke inlet 110.
Further, described smoke inlet 110 is arranged on the lower end of sack cleaner 100, and described exhanst gas outlet 120 is arranged on the upper end of sack cleaner 100.
After below illustrating be provided with heat exchanger coil in sack cleaner, the heat exchange computing formula is:
Deduster heat exchange volume is:
V=7800(L) * 2630(W) * 5000(H) mm=103m
3(deduster heat exchange volume).
Flue gas specific heat capacity: c=0.2389 kcal/kg. ℃; Smoke density: ρ=2.99 kg/m
3.
The heat exchanger coil heat transference efficiency of steel pipe material: 0.63.
Flue gas and blowdown steam clearing house calorific requirement: K=8 kcal/ ㎡ .hr. ℃
103m
3Air is warming up to 160 ℃ of institute's calorific requirements (Q) from 140 ℃:
Q=Vcρ△T/0.63
=103?x?0.2389?x?2.99?x《（160+273）-(140+273)》÷0.63
=34218?kcal=3.4218x10
4kcal
Heat exchange area S=Q/K. △ t=3.4218x10
4÷ 8 ÷ " (190+273)-(160+273) >> ≒ 14.12 ㎡
And by 110m
3In air one hour, be warming up to 160 ℃ (12.5kg blowdown steam, entering temperature is 190 ℃, outlet temperature is 160 ℃) from 140 ℃, required heat exchange area is 14.12 ㎡.
S=πD×L×n
In formula: the S=heat exchange area
π: pi: 3.1416
D: heat exchanger coil diameter
L: heat exchanger coil length: 59.14m
N: heat exchanger coil radical (columns): 2
D=?S/?π×L×n，
D=14.12㎡?/（3.1416?x?59.14?x?2）=0.038m=38mm。
From the above, the heat exchanger coil of above-mentioned parameter can meet 103m
3Flue gas in deduster heat exchange volume is warming up to 160 ℃ from 140 ℃, makes flue-gas temperature higher than 20 ℃ of dew-point temperatures, in the situation that save energy consumption, has prevented the dewfall phenomenon of flue gas.
In sum, the utility model is by being provided with one for passing into the heat exchanger coil of blowdown steam at sack cleaner, and this heat exchanger coil is passed into to the boiler blow-off steam that script is wasted, thereby the inside of sack cleaner is heated, flue-gas temperature wherein is improved, prevent the dewfall of flue gas, reached when flue gas is carried out to indirect, can not increase again the purpose of the unit consumption of heat energy.
Should be understood that; application of the present utility model is not limited to above-mentioned giving an example; for those of ordinary skills, can be improved according to the above description or convert, all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (5)
1. the sack cleaner with heat exchanger coil, be connected in coal water slurry boiler, it is characterized in that, described sack cleaner is provided with a heat exchanger coil for the blowdown steam that passes into the coal water slurry boiler regular discharge, described heat exchanger coil is around the inwall that is arranged on sack cleaner, and extends upward.
2. according to claim 1 with the sack cleaner of heat exchanger coil, it is characterized in that, described heat exchanger coil is arranged on the inwall of described sack cleaner with two-tube arrangement architecture.
3. according to claim 1 with the sack cleaner of heat exchanger coil, it is characterized in that, described heat exchanger coil is DN38 * 5mm heat exchanger coil.
4. according to claim 1 with the sack cleaner of heat exchanger coil, it is characterized in that, described sack cleaner is provided with one for the smoke inlet that passes into flue gas and for discharging the exhanst gas outlet of flue gas.
5. according to claim 4 with the sack cleaner of heat exchanger coil, it is characterized in that, described smoke inlet is arranged on the lower end of sack cleaner, and described exhanst gas outlet is arranged on the upper end of sack cleaner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220582466 CN202951362U (en) | 2012-11-07 | 2012-11-07 | Bag-type dust remover with heat exchange coil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220582466 CN202951362U (en) | 2012-11-07 | 2012-11-07 | Bag-type dust remover with heat exchange coil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202951362U true CN202951362U (en) | 2013-05-29 |
Family
ID=48456956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220582466 Expired - Fee Related CN202951362U (en) | 2012-11-07 | 2012-11-07 | Bag-type dust remover with heat exchange coil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202951362U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105582778A (en) * | 2016-03-14 | 2016-05-18 | 江正云 | Heating-type bag dust collection device |
-
2012
- 2012-11-07 CN CN 201220582466 patent/CN202951362U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105582778A (en) * | 2016-03-14 | 2016-05-18 | 江正云 | Heating-type bag dust collection device |
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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 |
Free format text: FORMER OWNER: XU BAOTANG Effective date: 20140207 |
|
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN ZHENNENG HEAT SOURCE CO., LTD. Free format text: FORMER NAME: SHENZHEN HAIZHONG HEAT TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: 518102, Guangdong, Baoan District, Xixiang street, the Peach Garden science and Technology Innovation Park, No. 4 research and development center, three, A, Shenzhen Patentee after: SHENZHEN ZHENNENG HEAT SOURCE TECHNOLOGY Co.,Ltd. Patentee after: Xu Baotang Address before: 518102 R & D building, 4 the Peach Garden science and Technology Innovation Park, Baoan District, Guangdong, Shenzhen Patentee before: Shenzhen Haizhong Heat Source Technology Co.,Ltd. Patentee before: Xu Baotang |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140207 Address after: 518102, Guangdong, Baoan District, Xixiang street, the Peach Garden science and Technology Innovation Park, No. 4 research and development center, three, A, Shenzhen Patentee after: SHENZHEN ZHENNENG HEAT SOURCE TECHNOLOGY Co.,Ltd. Address before: 518102, Guangdong, Baoan District, Xixiang street, the Peach Garden science and Technology Innovation Park, No. 4 research and development center, three, A, Shenzhen Patentee before: SHENZHEN ZHENNENG HEAT SOURCE TECHNOLOGY Co.,Ltd. Patentee before: Xu Baotang |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20181107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |