CN203097964U - Yellow phosphorus off gas combustion distributing cylinder driven steam screw expansion generation system - Google Patents
Yellow phosphorus off gas combustion distributing cylinder driven steam screw expansion generation system Download PDFInfo
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- CN203097964U CN203097964U CN 201320119384 CN201320119384U CN203097964U CN 203097964 U CN203097964 U CN 203097964U CN 201320119384 CN201320119384 CN 201320119384 CN 201320119384 U CN201320119384 U CN 201320119384U CN 203097964 U CN203097964 U CN 203097964U
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Abstract
The utility model relates to a yellow phosphorus off gas combustion distributing cylinder driven steam screw expansion generation system. Yellow phosphorus off gas (14) is led to a gas-fired boiler via an off gas intake device (1) to burn; boiler steam enters a steam-distributing cylinder (16) along a steam pipe (3) via a regulating valve (6) and then sequentially enters a reducing valve (17) and a pressure regulating valve (4); and the boiler steam enters a steam screw expansion generator (5) for generating electric power after the temperature and the pressure of the boiler steam are regulated by the pressure regulating valve (4). A yellow phosphorus enterprise having a gas-fired boiler only needs to purchase a set of steam-driven steam screw expansion generation system so as to generate the electric power by burning yellow phosphorus off gas, as a result, the utilization rate of the gas-fired boiler is improved, and initial investment is lowered. The stability of the pressure of the boiler steam is improved by using the steam-distributing cylinder, meanwhile, requirement of a production process on steam is satisfied, the steam screw expansion generator (5) is kept under a stable generation work condition, the service life of equipment is prolonged, and generating voltage is more stable.
Description
Technical field
The utility model relates to a kind of yellow phosphoric tail gas burning and divides cylinder to drive steam screw expansion power generation system, belongs to field of energy-saving technology.
Background technique
Cogeneration is to reclaim heat energy that discharges in physical environment in the production process and the technology that is converted into electric energy.Cogeneration is generated electricity by reclaiming the waste heat of discharging in the enterprise production process, and electric energy is incorporated enterprise's production electrical distribution system into, reduces enterprise's outsourcing electric weight, reduces enterprise's cost of production, realizes energy-conservation, reduction of discharging simultaneously.The afterheat energy-saving generation technology can not only be created the wealth for enterprise, and can reduce the per GDP energy consumption, for government has shared the energy consumption index examination, has won the good environment of enterprise development, realizes environmentally friendly, resource-conserving development model; If widespread adoption can realization energy-conservation for country, that reduce discharging index be contributed a part of strength, extenuate the energy-conservation examination pressure of local government.Therefore, the afterheat energy-saving generation technology has important economic benefit and social benefit.Waste heat is divided into high-temperature residual heat (more than 400 ℃), middle temperature waste heat (400 ℃-200 ℃), low temperature exhaust heat (below 200 ℃), common waste heat power generation equipment mainly is the steam turbine generator set of MW level, require waste heat quantity very big, at least be the above waste heat of middle temperature, be mainly used in large enterprises such as iron and steel, cement.The cogeneration investment amount is at least more than 5,000 ten thousand yuan.The discarded waste heat of enterprise, because waste heat lazy weight, temperature not high (being called low-grade heat source), reason such as perhaps investment amount is big, can't adopt the steam turbine generator set, waste heat can only utilize simply, such as being used for workshop sections such as drying, heating, make that the energy of waste heat is not fully excavated; The tail gas main component that produces in the phosphorus production process is carbon monoxide (CO) on the other hand, and 1 ton of yellow phosphorus produces about 2500-3000 cubic meter tail gas, amounts to 1300 kilograms of standard coals.Calculate with 10000 tons of yellow phosphorus of Annual output, the tail gas of generation is amounted to 13000 tons of standard coals, about 100,000,000 kilowatt hours of generated energy.Under present condition, tail gas emptying burning has been wasted energy, and has not been met the national policy requirement.The Ministry of Industry and Information Technology of country implements " phosphorus production entry criteria " from January 1st, 2009, " the phosphorus furnace exhaust gas must not in linely burn; must realize energy or resource recycling, newly-built yellow phosphorus unit tail gas comprehensive utilization ratio must reach more than 90% in requirement.Encourage phosphorus production enterprise to utilize yellow phosphoric tail gas to produce fine phosphate or generating, encourage enterprise's Application and Development phosphorus furnace exhaust gas to produce C-1 chemistry product technology as thermal source." by reclaiming emission power generation, make enterprise satisfy the national policy laws and regulations requirement, reduced enterprise energy consumption, for enterprise has created economic benefit, realized killing two birds with one stone.
Summary of the invention:The utility model provides a kind of yellow phosphoric tail gas burning to divide cylinder to drive steam screw expansion power generation system, utilizes yellow phosphoric tail gas as boiler oil, and burning produces steam, drives the generating of steam screw expansion power generation system.For purchasing gas fired boiler yellow phosphorus enterprise, yellow phosphorus enterprise only need purchase the yellow phosphoric tail gas generating that can realize burning of lower steam driven steam screw expansion power generation system once cover price relative ORC screw expansion power generation system, reduced early investment, solved direct combustion tail gas environment has been caused the serious problem of environmental pollution, reclaim the energy simultaneously, improved the utilization ratio of resource.
A kind of yellow phosphoric tail gas burning divides cylinder to drive steam screw expansion power generation system by tail gas leading device 1, gas fired boiler 2, steam tube 3, modulating valve 6, gas-distributing cylinder 16, pressure regulator valve 4, reduction valve 17, steam screw expansion generator 5, power transmission line 7 is formed, yellow phosphoric tail gas 14 is introduced gas fired boiler 2 burnings by tail gas leading device 1, the steam that produces enters respectively in reduction valve 17 and the pressure regulator valve 4 along steam tube 3 enters gas-distributing cylinder 16 by modulating valve 6 after, pressure regulator valve 4 is according to the working pressure of steam screw expansion generator 5, temperature is regulated, steam enters 5 generatings of steam screw expansion generator, by power transmission line 7 output powers, steam is back in the boiler by return pipe 8 after the heat exchanger of steam screw expander is finished heat exchange.
Steam is after the acting of screw expansion generator is finished, part becomes condensed water, another part is a steam, enter in the mixing chamber 11 after entering opposing steam flow pipe 8 together, the cold water of water-adding pipe 10 in mixing chamber 11, is water with vapor condensation by moisturizing atomization spray cap 9 water sprays, and the part entrained steam further is condensed into water by condensation chamber 15, carry the gas boiler heating of strile-bacing by waterback pump 12, recycle.
Water vapor pressure 27.9MPa ~ the 0.12MPa of steam tube 3 outputs, 570 ℃ ~ 105 ℃ of temperature, steam tube 3 serial connection modulating valve 6 and gas-distributing cylinders 16, two output terminals of gas-distributing cylinder 16 connect reduction valve 17 and pressure regulator valve 4 respectively, and the output terminal of pressure regulator valve 4 is connected in series with steam screw expansion generator 5 input ends.
Tail gas leading device 1 is provided with air intlet 13 and yellow phosphoric tail gas import 14, can adopt induced draught fan or yellow phosphoric tail gas burner.
Technological scheme:The yellow phosphoric tail gas burning divides cylinder to drive steam screw expansion power generation system by tail gas leading device 1, gas fired boiler 2, steam tube 3, modulating valve 6, gas-distributing cylinder 16, pressure regulator valve 4, reduction valve 17, steam screw expansion generator 5, power transmission line 7 is formed, yellow phosphoric tail gas 14 is introduced gas fired boiler 2 burnings by tail gas leading device 1, the steam that produces enters respectively in reduction valve 17 and the pressure regulator valve 4 along steam tube 3 enters gas-distributing cylinder 16 by modulating valve 6 after, pressure regulator valve 4 is according to the working pressure of steam screw expansion generator 5, after temperature is regulated, steam enters 5 generatings of steam screw expansion generator, by power transmission line 7 output powers, steam is back in the boiler by return pipe 8 after the heat exchanger of screw expander is finished heat exchange.Steam is after the acting of screw expansion generator is finished, part becomes condensed water, another part becomes steam, enter in the mixing chamber 11 after entering opposing steam flow pipe 8 together, the cold water of water-adding pipe 10 in mixing chamber 11, is water with vapor condensation by moisturizing atomization spray cap 9 water sprays, and the part entrained steam further is condensed into water by condensation chamber 15, carry the gas boiler heating of strile-bacing by waterback pump 12, recycle.Water vapor pressure 27.9MPa ~ the 0.12MPa of steam tube 3 outputs, 570 ℃ ~ 105 ℃ of temperature, steam tube 3 serial connection modulating valve 6 and gas-distributing cylinders 16, two output terminals of gas-distributing cylinder 16 connect reduction valve 17 and pressure regulator valve 4 respectively, and the output terminal of pressure regulator valve 4 is connected in series with steam screw expansion generator 5 input ends.Tail gas leading device 1 is provided with air intlet 13 and yellow phosphoric tail gas import 14, can adopt induced draught fan or yellow phosphoric tail gas burner.
The utility model adopts 16 pairs of steam of gas-distributing cylinder to distribute, the cylinder body of gas-distributing cylinder has improved the stability of vapor pressure, to making steam screw expansion generator 5 can be in stable generating operation mode, prolonged the working life of equipment, and the voltage of generating is more stable.In addition, adopt steam directly to drive the generating of steam screw expansion power generation system, lower with respect to ORC screw expansion power generation system price, further reduced the early investment of enterprise.
In the utility model, the generating drive unit adopts the steam screw expander to drive generator for electricity generation, (its working principle of ORC type steam screw expander generator set of indication is here: generator set adopts intermediate medium no longer to adopt ORC type steam screw expander generator set, extracting heat from low-grade heat source then generates electricity, constitute heat exchange, two loops of generating electricity, be called two circulation (ORC) generation technologies, be also referred to as the Rankine cycle generation technology, the waste heat that is recovered is at heat exchange unit (Evaporator), with the intermediate medium heat exchange, expand in decompressor in intermediate medium heat absorption back, the drive screw rotation, output shaft power drives the generator set generating.The back intermediate medium that expands enters heat release unit (Condenser), with the cooling water heat-shift.By pump intermediate medium is pumped into heat exchange unit again, finish a circulation.ORC type screw expander generator is a kind of existing already present equipment that utilizes low-temperature cogeneration), what adopted is steam screw expander generator set, its working principle is to utilize the direct lead-screw of steam to expand to rotate, driving generator generates electricity, need not intermediate medium and carry out heat exchange, make that steam screw expander generator unit structure is more simple.
The gas-distributing cylinder 16 that the utility model adopted also is the branch drum, is the main corollary equipment of boiler, and the distribution of steam that is produced when being used for boiler operatiopn is gone to each road pipeline, and gas-distributing cylinder is a bearing device, belongs to pressurized container.The major function of gas-distributing cylinder is a distributing steam, so has a plurality of valve seats to connect boiler main stop valve and distribution valve door on the gas-distributing cylinder, so that steam in the sub-cylinder is divided to respectively needing part.The gas-distributing cylinder main pressurized element is: distribution valve seat, main stop valve seat, safety door valve seat, hydrophobic valve seat, pressure gauge stand, temperature gauge stand; Working medium: steam, hot and cold water, pressurized air.
Beneficial effect:The utility model utilizes yellow phosphoric tail gas as heat resource power generation, has avoided tail gas emptying burning, the waste energy.For the yellow phosphorus enterprise that purchases gas fired boiler, only need purchase once the yellow phosphoric tail gas generating that can realize burning of cover steam driven steam screw expansion power generation system, improved the utilization ratio of gas fired boiler, reduced early investment.The use gas-distributing cylinder has improved the stability of vapor pressure, satisfies the steam demand of production technology simultaneously, makes steam screw expansion generator 5 can be in stable generating operation mode, prolonged the working life of equipment, and the voltage of generating is more stable.Need not adopt the steam turbine generator set, can make full use of low-grade heat source, applicable elements is wide spectrum more, and generator set can move under variable working condition, and the turnover is short, safeguards simple, easy to operate.By reclaiming emission power generation, make enterprise satisfy the national policy laws and regulations requirement, reduced enterprise energy consumption, for enterprise has created economic benefit, realized killing two birds with one stone.
Description of drawings:
Fig. 1 is the utility model structural representation.
Among Fig. 1: 1, yellow phosphoric tail gas leading device, 2, gas fired boiler, 3, high pressure steam, 4, pressure regulator valve, 5, steam screw expansion generator, 6, modulating valve, 7, power transmission line, 8, reflow pipe, 9, the moisturizing atomization spray cap, 10, water-adding pipe, 11, mixing chamber, 12, waterback pump, 13, air intlet, 14, yellow phosphoric tail gas, 15 cooling chambers, 16, gas-distributing cylinder, 17, reduction valve.
Embodiment:The utility model is described in further detail below in conjunction with drawings and Examples.
Example one: the yellow phosphoric tail gas burning divides cylinder to drive steam screw expansion power generation system by tail gas leading device 1, gas fired boiler 2, steam tube 3, modulating valve 6, gas-distributing cylinder 16, pressure regulator valve 4, reduction valve 17, steam screw expansion generator 5, power transmission line 7 is formed, yellow phosphoric tail gas 14 is introduced gas fired boiler 2 burnings by tail gas leading device 1, the steam that produces enters respectively in reduction valve 17 and the pressure regulator valve 4 along steam tube 3 enters gas-distributing cylinder 16 by modulating valve 6 after, pressure regulator valve 4 is according to the working pressure of steam screw expansion generator 5, temperature is regulated, steam enters 5 generatings of steam screw expansion generator, by power transmission line 7 output powers, steam is back in the boiler by return pipe (8) after the heat exchanger of screw expander is finished heat exchange.
Example two: the burning of this yellow phosphoric tail gas divides cylinder to drive steam screw expansion power generation system by tail gas leading device 1, gas fired boiler 2, steam tube 3, modulating valve 6, gas-distributing cylinder 16, pressure regulator valve 4, reduction valve 17, steam screw expansion generator 5, power transmission line 7 is formed, yellow phosphoric tail gas 14 is introduced gas fired boiler 2 burnings by tail gas leading device 1, the steam that produces enters respectively in shunting metered valve 17 and the modulating valve 4 along steam tube 3 enters sub-cylinder 16 by Flow valve 6 after, pressure regulator valve 4 is according to the working pressure of steam screw expansion generator 5, temperature is regulated, steam enters 5 generatings of steam screw expansion generator, by power transmission line 7 output powers.
Steam is after the acting of screw expansion generator is finished, part becomes condensed water, another part is a steam, enter in the mixing chamber 11 after entering opposing steam flow pipe 8 together, the cold water of water-adding pipe 10 in mixing chamber 11, is water with vapor condensation by moisturizing atomization spray cap 9 water sprays, and the part entrained steam further is condensed into water by condensation chamber 15, carry the gas boiler heating of strile-bacing by waterback pump 12, recycle.
Example three: the burning of this yellow phosphoric tail gas divides cylinder to drive steam screw expansion power generation system by tail gas leading device 1, gas fired boiler 2, steam tube 3, modulating valve 6, gas-distributing cylinder 16, pressure regulator valve 4, reduction valve 17, steam screw expansion generator 5, power transmission line 7 is formed yellow phosphoric tail gas 14 and is introduced gas fired boiler 2 burnings by tail gas leading device 1, the steam that produces enters respectively in decompression 17 and the pressure regulator valve 4 along steam tube 3 enters gas-distributing cylinder 16 by modulating valve 6 after, pressure regulator valve 4 is according to the working pressure of steam screw expansion generator 5, temperature is regulated, steam enters 5 generatings of steam screw expansion generator, by power transmission line 7 output powers.
Steam is after the acting of screw expansion generator is finished, part becomes condensed water, another part is a steam, enter in the mixing chamber 11 after entering opposing steam flow pipe 8 together, the cold water of water-adding pipe 10 in mixing chamber 11, is water with vapor condensation by moisturizing atomization spray cap 9 water sprays, and the part entrained steam further is condensed into water by condensation chamber 15, carry the gas boiler heating of strile-bacing by waterback pump 12, recycle.
Water vapor pressure 27.9MPa ~ the 0.12MPa of steam tube 3 outputs, 570 ℃ ~ 105 ℃ of temperature, steam tube 3 serial connection modulating valve 6 and gas-distributing cylinders 16, two output terminals of gas-distributing cylinder 16 connect reduction valve 17 and pressure regulator valve 4 respectively, and the output terminal of pressure regulator valve 4 is connected in series with steam screw expansion generator 5 input ends.
Tail gas leading device 1 is provided with air intlet 13 and yellow phosphoric tail gas import 14, can adopt induced draught fan or yellow phosphoric tail gas burner.
Example four: selecting steam output for use is the gas fired boiler 2 of 4t/h, water vapor pressure 1.25MPa, 190 ℃ of temperature, flow 4t/h.Adopt induced draught fan 1 yellow phosphoric tail gas to be introduced gas fired boiler 2, amount of consumed gas 1311 Nm3/ h.The steam that boiler produces enters respectively in shunting metered valve 17 and the modulating valve 4 along steam tube 3 enters gas-distributing cylinder 16 by Flow valve 6 after, control valve 4 carries out pressure regulation according to the working pressure of steam type expansion power generation machine 5, water vapor pressure is adjusted into 0.18MPa ~ 0.12MPa, 130 ℃ ~ 110 ℃ of temperature, steam after the pressure regulation leads to into steam screw expansion generator 5 generatings from reduction valve 4, by power transmission line 7 output powers.Steam after screw expansion generator acting is finished, enter opposing steam flow pipe 8 after, carry the gas boiler heating of strile-bacing by waterback pump 12, recycle.
Claims (4)
1. a yellow phosphoric tail gas burning divides cylinder to drive steam screw expansion power generation system by tail gas leading device (1), gas fired boiler (2), steam tube (3), modulating valve (6), gas-distributing cylinder (16), pressure regulator valve (4), reduction valve (17), steam screw expansion generator (5), power transmission line (7) is formed, it is characterized in that: yellow phosphoric tail gas (14) is introduced gas fired boiler (2) burning by tail gas leading device (1), the steam that produces enters respectively in reduction valve (17) and the pressure regulator valve (4) along steam tube (3) enters gas-distributing cylinder (16) by modulating valve (6) after, pressure regulator valve (4) is according to the operating temperature of steam screw expansion generator (5), pressure is regulated, steam enters steam screw expansion generator (5) generating, by power transmission line (7) output power, steam is back in the boiler by return pipe (8) after the heat exchanger of screw expander is finished heat exchange.
2. yellow phosphoric tail gas burning according to claim 1 divides cylinder to drive steam screw expansion power generation system, it is characterized in that: steam is after the acting of screw expansion generator is finished, part becomes condensed water, another part becomes steam, enter in the mixing chamber (11) after entering opposing steam flow pipe (8) together, the cold water of water-adding pipe (10) by moisturizing atomization spray cap (9) water spray in mixing chamber (11), with vapor condensation is water, the part entrained steam further is condensed into water by condensation chamber (15), carry the gas boiler heating of strile-bacing by waterback pump (12), recycle.
3. yellow phosphoric tail gas burning according to claim 1 divides cylinder to drive steam screw expansion power generation system, it is characterized in that: the water vapor pressure 27.9MPa ~ 0.12MPa of steam tube (3) output, 570 ℃ ~ 105 ℃ of temperature, steam tube (3) serial connection modulating valve (6) and gas-distributing cylinder (16), two output terminals of gas-distributing cylinder (16) connect reduction valve (17) and pressure regulator valve (4) respectively, and the output terminal of pressure regulator valve (4) is connected in series with steam screw expansion generator (5) input end.
4. yellow phosphoric tail gas burning according to claim 1 divides cylinder to drive steam screw expansion power generation system, and it is characterized in that: tail gas leading device (1) is provided with air intlet (13) and yellow phosphoric tail gas import (14), can adopt induced draught fan or yellow phosphoric tail gas burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320119384 CN203097964U (en) | 2013-03-17 | 2013-03-17 | Yellow phosphorus off gas combustion distributing cylinder driven steam screw expansion generation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320119384 CN203097964U (en) | 2013-03-17 | 2013-03-17 | Yellow phosphorus off gas combustion distributing cylinder driven steam screw expansion generation system |
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| Publication Number | Publication Date |
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| CN203097964U true CN203097964U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320119384 Expired - Fee Related CN203097964U (en) | 2013-03-17 | 2013-03-17 | Yellow phosphorus off gas combustion distributing cylinder driven steam screw expansion generation system |
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| CN (1) | CN203097964U (en) |
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2013
- 2013-03-17 CN CN 201320119384 patent/CN203097964U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20140317 |