CN203642140U - Calcium carbide furnace tail gas waste heat boiler - Google Patents
Calcium carbide furnace tail gas waste heat boiler Download PDFInfo
- Publication number
- CN203642140U CN203642140U CN201320793752.9U CN201320793752U CN203642140U CN 203642140 U CN203642140 U CN 203642140U CN 201320793752 U CN201320793752 U CN 201320793752U CN 203642140 U CN203642140 U CN 203642140U
- Authority
- CN
- China
- Prior art keywords
- calcium carbide
- soft water
- steam
- flue
- waste heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000005997 Calcium carbide Substances 0.000 title claims abstract description 29
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 239000002918 waste heat Substances 0.000 title claims abstract description 26
- 239000007789 gas Substances 0.000 title abstract description 10
- 239000008234 soft water Substances 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000411 inducer Substances 0.000 claims description 8
- 230000008676 import Effects 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims description 3
- 239000003245 coal Substances 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000003546 flue gas Substances 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000014171 carbonated beverage Nutrition 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Abstract
The utility model relates to a calcium carbide furnace tail gas waste heat boiler which comprises an inlet section flue, an evaporator, a soft water preheater, a phase-change heat exchanger, a steam collector and an outlet section flue. The inlet end of the inlet section flue is communicated with the discharge flue of a calcium carbide furnace. The outlet end of the inlet section flue is sequentially connected with the evaporator, the soft water preheater, the phase-change heat exchanger and the outlet section flue. Soft water enters the water inlet pipe of the soft water preheater. The water outlet pipe of the soft water preheater is connected with the inlet of the steam collector. A circulating loop is formed between the steam collector and the evaporator. The steam and water in the steam collector are separated to generator superheated steam. The calcium carbide furnace tail gas waste heat boiler is simple in structure, scientific and reasonable in design, high in heat efficiency and low in management cost, tail gas waste heat is recycled and utilized sufficiently, coal consumption is reduced, and economical benefits are brought to enterprises.
Description
Technical field
The utility model belongs to calcium carbide stove exhaust waste heat recovery reutilization technology field, specifically, is a kind of calcium carbide stove exhaust waste heat boiler.
Background technology
Internal combustion type furnace of calcium carbide is in the process of production calcium carbide, need to discharge a large amount of heat of high temperature tail gas (the exhaust gas heat temperature that calcium carbide discharges after generating can reach more than 400 ℃), traditional mode is discharged in atmosphere, so not only polluted environment and also caused the waste of the energy.
The actual normal vapor pressure used of paper-making industry is 0.8MPa, temperature 170-190 ℃ now, steam tolerance 8t/h, and these steam overwhelming majority obtains by coal-fired steam boiler, therefore be badly in need of a device that calcium carbide stove exhaust waste heat is reclaimed of exploitation, the requirement that produces steam and meet paper-making industry by this device.So just not only save coal resources, and can reduce production costs.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of simple in structure, the thermal efficiency is high, save the calcium carbide stove exhaust waste heat boiler of the energy.
Technical solutions of the utility model are achieved in that
A kind of calcium carbide stove exhaust waste heat boiler, comprise inducer flue, evaporimeter, soft water preheater, phase-change heat-exchanger, steam collector and outlet section flue, the entrance point of described inducer flue is communicated with furnace of calcium carbide smokejack, the port of export of inducer flue connects evaporimeter successively, soft water preheater, phase-change heat-exchanger and outlet section flue, soft water enters the water inlet pipe of soft water preheater, the outlet pipe of this soft water preheater is connected with the import of steam collector, between steam collector and evaporimeter, form closed circuit, steam in described steam collector separates with water and produces superheated steam.
And described evaporimeter adopts rib-type wing heat-transmission pipe.
And described soft water preheater, evaporimeter and steam collector are equipped with sewage draining exit.
Advantage of the present utility model and good effect are:
1, this waste-heat oven replaces the original coal-fired steam boiler in paper-making industry, utilizes the waste heat of calcium carbide stove exhaust to meet normal vapor pressure in paper-making industry.
2, the evaporimeter of this waste-heat oven adopts rib-type wing heat-transmission pipe, and this rib-type wing heat-transmission pipe has the performance of the high heat conduction of heat pipe, heat transfer, and fin has increased heat exchange area, easy cleaning dedusting.
3, this waste-heat oven efficiently utilizes the waste heat of calcium carbide stove exhaust, has avoided a large amount of high-temperature flue gas directly to discharge, and has improved energy utilization rate, and produces 0.8Mpa saturated vapor for paper-making industry.The utility model is simple in structure, design science is reasonable, the thermal efficiency is high, administrative expenses are low, fully recycles using waste heat from tail gas, saves the consumption of coal, for economic interests improve in enterprise.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing and by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of calcium carbide stove exhaust waste heat boiler, as shown in Figure 1, described waste-heat oven comprises inducer flue 1, evaporimeter 6, soft water preheater 5, phase-change heat-exchanger 4, steam collector 2 and outlet section flue 3, 400 ℃ of high-temperature tail gas that described furnace of calcium carbide produces enter after inducer flue by pipeline, pass through successively evaporimeter, soft water preheater and phase-change heat-exchanger carry out exchange heat, soft water enters the water inlet pipe of soft water preheater, then discharge by outlet section flue, the outlet pipe of described soft water preheater is connected with the import of steam collector, between steam collector and evaporimeter, form closed circuit by tedge and down-comer, thereby produce 0.8Mpa saturation water, steam in steam collector separates with water and produces 0.8Mpa superheated steam.
In the present embodiment, the smoke evacuation flow process of flue gas system is: 400 ℃ of high-temperature residual heat flue gases of discharging from furnace of calcium carbide enter phase-change heat-exchanger through flue, and the temperature that flue gas enters sack cleaner drops to 170 ℃, enters atmosphere through air-introduced machine.Flue-gas temperature drops to from high temperature the heat that low temperature discharges and is used for making soft water to become superheated steam.
Described evaporimeter adopts rib-type wing heat-transmission pipe, and rib-type wing heat-transmission pipe has the character of the high conduction heat transfer of heat pipe, and fin has increased heat exchange area, easy cleaning dedusting.The mode that described rib-type wing heat-transmission pipe and radial heat pipe mutually combine, fin and air-flow flow direction are different angles, tube bank self-assembling formation passage, and on cylindrical shell, the arrangement mode of heat exchanger tube makes air-flow produce nature vibration, thereby alleviate the pickup degree of dust, keep the heat transfer property of tube bank.Utilize and form the closed circuit of water system, the steam water interface of generation is carried out to carbonated drink separation by steam collector, produce saturated vapor, in this process, absorb calcium carbide produced in heat in the tail gas of release.Therefore equipment operation a period of time just there will be fouling phenomenon in flue gas due to industrial furnace, to contain a large amount of dust, affect the normal operation of whole system, according to the concrete feature of waste-heat oven, can adopt shock-wave ash-clearing device to carry out deashing, the continuously-running cycle is not less than 10 years.
Described covert heat exchanger is made up of heat pipe, is characterized in compact conformation; Fluid resistance is low, and single heat pipe damages waste-heat oven heat exchange impact little, even if part heat pipe damages the normal operation that also can not affect equipment; Can adjust the heat exchange area control valve wall temperature of cold and hot end, avoid dew point corrosion.
Described soft water preheater, evaporimeter, steam collector are equipped with sewage draining exit, can regularly remove inner residual dirt and incrustation scale.
Chishui City electrometallurgy company, a newly-built 25500kVA internal combustion type furnace of calcium carbide, producing the exhaust temperature discharging in calcium carbide process is 500 ℃, calcium carbide stove exhaust waste heat boiler is by producing the saturated vapor 13700kg/h of 1.0MPa to the recovery heat-energy transducer of tail gas, temperature is 184 ℃ of actual normal required vapor (steam) temperature 170-190 ℃ that produce of present paper industry, and the said firm utilizes calcium carbide stove exhaust waste heat boiler to replace papermaking coal-fired steam boiler to carry out papermaking.The one ton of coal that burns can produce the about 7.8t of 1.0MPa steam.Produce 13.7t/h steam and will consume coal 1.75t producing days calculating in 330 days per year, 1 calcium carbide stove exhaust waste heat boiler year is saved the about 13860t of coal.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. a calcium carbide stove exhaust waste heat boiler, it is characterized in that: comprise inducer flue, evaporimeter, soft water preheater, phase-change heat-exchanger, steam collector and outlet section flue, the entrance point of described inducer flue is communicated with furnace of calcium carbide smokejack, the port of export of this inducer flue connects evaporimeter successively, soft water preheater, phase-change heat-exchanger and outlet section flue, soft water enters the water inlet pipe of soft water preheater, the outlet pipe of this soft water preheater is connected with the import of steam collector, between steam collector and evaporimeter, form closed circuit, steam in described steam collector separates with water and produces superheated steam.
2. calcium carbide stove exhaust waste heat boiler according to claim 1, is characterized in that: described evaporimeter adopts rib-type wing heat-transmission pipe.
3. calcium carbide stove exhaust waste heat boiler according to claim 1 and 2, is characterized in that: described soft water preheater, evaporimeter and steam collector are equipped with sewage draining exit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320793752.9U CN203642140U (en) | 2013-12-03 | 2013-12-03 | Calcium carbide furnace tail gas waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320793752.9U CN203642140U (en) | 2013-12-03 | 2013-12-03 | Calcium carbide furnace tail gas waste heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203642140U true CN203642140U (en) | 2014-06-11 |
Family
ID=50873382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320793752.9U Expired - Lifetime CN203642140U (en) | 2013-12-03 | 2013-12-03 | Calcium carbide furnace tail gas waste heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203642140U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020691A (en) * | 2015-07-29 | 2015-11-04 | 思安新能源股份有限公司 | Thermodynamic system of boiler |
-
2013
- 2013-12-03 CN CN201320793752.9U patent/CN203642140U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020691A (en) * | 2015-07-29 | 2015-11-04 | 思安新能源股份有限公司 | Thermodynamic system of boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 301901 North side of Bangxi Highway in Jixian County, Tianjin (East yard of Tianjin Nestle Natural Mineral Water Co., Ltd.) Patentee after: Tianjin Huaneng Thermal Equipment Group Co.,Ltd. Address before: 301901 North side of Bangxi Highway in Jixian County, Tianjin (East yard of Tianjin Nestle Natural Mineral Water Co., Ltd.) Patentee before: TIANJIN HUANENG THERMAL EQUIPMENT Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |
|
| CX01 | Expiry of patent term |