CN208310851U - A kind of the coal-based methanol synthesis and power generating simultaneously system of integrated solar - Google Patents
A kind of the coal-based methanol synthesis and power generating simultaneously system of integrated solar Download PDFInfo
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- CN208310851U CN208310851U CN201820600524.8U CN201820600524U CN208310851U CN 208310851 U CN208310851 U CN 208310851U CN 201820600524 U CN201820600524 U CN 201820600524U CN 208310851 U CN208310851 U CN 208310851U
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- 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
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Abstract
The utility model discloses belong to coal grading using the coal-based methanol synthesis and power generating simultaneously system of the integrated solar in field.The system mainly includes the three subsystems such as solar energy upgrading, methanol-fueled CLC, coal fired power generation.In the system, coal upgrading, methanol-fueled CLC and the coal fired power generation three coupling of Driven by Solar Energy, slot type, tower type solar are respectively the pyrolysis of coal, gasifying provides heat, and waste heat, the waste material of upgrading and Production of methanol are recycled by boiler, the boiler circuit realization step of Thermal generation unit.The system is coupled by the efficient system integration, has widened the utilization ways of solar energy, realizes coal poly-generation, while being expected to reduce fossil energy consumption, improves the comprehensive utilization ratio of energy.
Description
Technical field
The utility model belongs to coal grading using field, in particular to the coal-based methanol synthesis of a kind of integrated solar with
Power generating simultaneously system, specifically a kind of solar energy auxiliary coal grading upgrading, the integrated power generation system with methanol-fueled CLC.
Background technique
Coal is the maximum fossil energy of storage capacity in the world, about 1,000,000,000,000 tons of the storage capacity detected at present, almost stone
Three times of oily storage capacity are the guarantees of world energy sources safety.But usually there is energy utilization effect during the utilization of coal
The problems such as rate is low, carbon dioxide and serious pollutant emission.With the pay attention to day by day to energy security, environmental protection etc.,
It is research direction important at present that the high-efficiency cleaning of coal resources, which utilizes,.
The indirect liquefaction technology of coal is a kind of clean utilization mode of coal resources, is gasified first to coal, production
Synthesis gas is further processed into liquid fuel (methanol etc.), can effectively reduce the discharge of carbon dioxide and pollutant, widen coal
Charcoal utilization ways.But the grading process such as pyrolysis, the gasification of the coal during the indirect liquefaction of traditional coal need to absorb a large amount of energy
Amount, it usually needs the part of coal, which is burnt, to be provided；The utilization efficiency of the waste material waste heat generated in the upgrading of coal and Production of methanol
It is often also bad.If introducing solar energy in the grading process of coal, and coupled with conventional Thermal generation unit depth, be expected into
One step improves the comprehensive utilization ratio of energy, reduces the discharge of carbon and pollutant.
In conclusion having the invention proposes a kind of co-generation system of the coal-based methanol of integrated solar synthesis and power generation
Prestige further increases efficiency of energy utilization, reduces fossil energy consumption, reduces the discharge of carbon dioxide and pollutant；The system needle
Efficient coupling is carried out to the coal upgrading of solar energy auxiliary, methanol-fueled CLC and coal fired power generation three, the energy of different tastes is carried out
Reasonable cascade utilization realizes the Poly-generation of methanol, upgraded coal and electric power, before coal grading has extensive use using field
Scape.
Utility model content
The purpose of this utility model is low, carbon dioxide and other pollutions for coal energy utilization efficiency in grading process
The problems such as object discharge amount is big proposes the coal-based methanol synthesis and power generating simultaneously system of a kind of integrated solar, integrated solar
Coal-based methanol synthesis and power generating simultaneously system mainly include solar energy upgrading subsystem, methanol-fueled CLC subsystem, coal fired power generation
System three parts；It is characterized in that, coal breaker 1 connects pre-drying device 2, pre-drying device 2 is separately connected boiler 22, and pyrolysis
Furnace 3, pyrolysis oven 3 are separately connected the cold coal device 29 of heat collector 4, gasification furnace 5 and high temperature of solar energy, the cold coal device 29 of high temperature and low temperature cold
Coal device 30, compression-molding apparatus 31 are connected；The cold coal device of high temperature 29 again respectively with the input port of high-pressure heater 28, delivery outlet with it is right
It should connect, high-pressure heater 28 is connect with the high pressure extraction of steam turbine 23, the high pressure extraction of steam turbine 23 and and solar energy
Gasification furnace 5 connects in upgrading subsystem；Low-pressure heater 26 is connect with the low-pressure pumping steam of steam turbine 23, and low temperature cold coal device 30 divides
It is not correspondingly connected with the input port of low-pressure heater 26, delivery outlet；Steam turbine 23 connects generator 24, and steam discharge connects condensing
Device 25, condenser 25 are connect with low-pressure heater 26 again；Pass through feed pump 27 between high-pressure heater 28 and low-pressure heater 26
Connection；High-pressure heater 28 is connected with boiler 22, steam turbine 23 again；No. 1 in the output connection methanol-fueled CLC subsystem of gasification furnace 5
8, No. 1 air-water heat exchanger 8 of air-water heat exchanger is connect with steam turbine 23 again；No. 1 air-water heat exchanger 8 with CO converter 9,2
Air-water heat exchanger 10 connects into circuit；No. 1 air-water heat exchanger 8 is also directly connected to No. 3 air-water heat exchangers around CO converter 9
11, No. 3 air-water heat exchangers 11 are separately connected the delivery outlet of No. 2 air-water heat exchangers 10 and high-pressure heater 28 again；No. 3 air-waters
Heat exchanger 11 also with No. 5 air-water heat exchangers 12, purification device 13, compressor 14, gas-to-gas heat exchanger 15, methanol-fueled CLC device 16 and
No. 4 air-water heat exchangers 17 are connected into circuit；Wherein, the input port and output of No. 5 air-water heat exchangers 12 and low-pressure heater 26
Mouth is separately connected；No. 4 air-water heat exchangers 17 are also connect with the input port of high-pressure heater 28；Compressor 14 and gas-to-gas heat exchanger
15, gas liquid exchanger 20 and gas-liquid separation device 19 are also connected into circuit；Cooler 18 is separately connected 20 He of gas liquid exchanger
Gas-liquid separation device 19；The output connection methanol purification device 21 of gas liquid exchanger 20.The solar energy is projected by heliostat 6
On reflector 7, then gather in gasification furnace 5.
The utility model has the beneficial effects that can be reduced in the grading process such as pyrolysis of coal, gasification by being introduced into solar energy
Fossil energy consumption reduces the discharge of pollutant and carbon dioxide；Meanwhile passing through the boiler and boiler circuit with Coal fired power station
Coupling can increase substantially the comprehensive utilization ratio of coal, realize that coal grading utilizes, have the characteristics that:
1. pyrolysis and two kinds of gasification different journeys that the heat for the different silicon carbides that different heat collectors generate is respectively used to coal
The grading process of degree realizes the cascade utilization of solar energy, reduces the cost of investment of solar energy heat-collection field, while coal may be implemented
Sub-prime utilizes, and reduces the fossil energy consumption of coal grading process and the discharge of carbon dioxide and pollutant.
2. the upgrading of coal and Production of methanol be with coal unit by coupling, using the good fuel tolerance of boiler,
Pyrolysis waste residue and methanol-fueled CLC exhaust gas can be recycled, while can be by having the boiler circuit in broad continuous temperature section rationally to return
Receipts process waste heat, realizes the cascade utilization of energy, to improve the comprehensive utilization ratio of energy.
3. being coupled based on the system of coal-based methanol and coal fired power generation, the upgraded coal one that solar energy upgrading unit pyrolysis apparatus generates
For gasifying, a part also separable come out is processed into upgrading lump coal, increases the input of solar energy for part, produces and is readily transported
High-quality upgraded coal enriches the utilization ways of coal.
Detailed description of the invention
Fig. 1 is the coal-based methanol synthesis and power generating simultaneously system schematic of integrated solar.
In figure: 1- coal breaker, 2- pre-drying device, 3- pyrolysis oven, 4- groove type heat collector, 5- gasification furnace, 6- heliostat, 7-
Reflector, 8-1 air-water heat exchanger, 9-CO converter, 10-2 air-water heat exchanger, 11-3 air-water heat exchanger, No. 12-5
Air-water heat exchanger, 13- purification device, 14- compressor, 15- gas-to-gas heat exchanger, 16- methanol-fueled CLC device, 17-4 air-water change
Hot device, 18- cooler, 19- gas-liquid separation device, 20- gas liquid exchanger, 21- methanol purification device, 22- boiler, 23- vapor wheel
Machine, 24- generator, 25- condenser, 26- low-pressure heater, 27- feed pump, 28- high-pressure heater, the cold coal device of 29- high temperature,
30- low temperature cold coal device, 31- compression-molding apparatus
Specific embodiment
The utility model proposes a kind of synthesis of the coal-based methanol of integrated solar and power generating simultaneously system, below with reference to attached
Figure is explained.
Coal-based methanol synthesis and the power generating simultaneously system, including solar energy upgrading subsystem of integrated solar as shown in Figure 1
System, methanol-fueled CLC subsystem, three major parts of coal fired power generation subsystem；Wherein, coal breaker 1 connects pre-drying device 2, predry
Dry device 2 is separately connected boiler 22 and pyrolysis oven 3, and pyrolysis oven 3 is separately connected the heat collector 4, gasification furnace 5 and high temperature of solar energy
Cold coal device 29, the cold coal device 29 of high temperature are connected with low temperature cold coal device 30, compression-molding apparatus 31；The cold coal device of high temperature 29 again respectively with height
It presses the input port of heater 28, delivery outlet and is correspondingly connected with, high-pressure heater 28 is connect with the high pressure extraction of steam turbine 23, steaming
The high pressure extraction of steam turbine 23 is connect with gasification furnace 5 in solar energy upgrading subsystem again；Low-pressure heater 26 and steam turbine 23
Low-pressure pumping steam connection, low temperature cold coal device 30 is correspondingly connected with the input port of low-pressure heater 26, delivery outlet respectively；Steam turbine
23 connection generators 24, steam discharge connect condenser 25, and condenser 25 is connect with low-pressure heater 26 again；28 He of high-pressure heater
It is connected between low-pressure heater 26 by feed pump 27；High-pressure heater 28 is connected with boiler 22, steam turbine 23 again；Gasification furnace
8, No. 1 air-water heat exchanger 8 of No. 1 air-water heat exchanger is connect with steam turbine 23 again in 5 output connection methanol-fueled CLC subsystems；1
Number air-water heat exchanger 8 and 9, No. 2 air-water heat exchangers 10 of CO converter connect into circuit；No. 1 air-water heat exchanger 8 also bypasses CO
Converter 9 be directly connected to 11, No. 3 air-water heat exchangers 11 of No. 3 air-water heat exchangers again be separately connected No. 2 air-water heat exchangers 10 and
The delivery outlet of high-pressure heater 28；No. 3 air-water heat exchangers 11 also with No. 5 air-water heat exchangers 12, purification device 13, compressor
14, gas-to-gas heat exchanger 15, methanol-fueled CLC device 16 and No. 4 air-water heat exchanger 17 are connected into circuit；Wherein, No. 5 air-water heat exchangers
12 are separately connected with the input port of low-pressure heater 26 and delivery outlet；No. 4 air-water heat exchangers 17 are also defeated with high-pressure heater 28
Entrance connection；Compressor 14 and gas-to-gas heat exchanger 15, gas liquid exchanger 20 and gas-liquid separation device 19 are also connected into circuit；It is cold
But device 18 is separately connected gas liquid exchanger 20 and gas-liquid separation device 19；The output connection methanol purification device of gas liquid exchanger 20
21。
The solar energy is projected on reflector 7 by heliostat 6, is then gathered in gasification furnace 5.
The working principle of the coal-based methanol synthesis and power generating simultaneously system of the integrated solar, raw coal first pass through coal breaker
1 pulverization process, dry into pre-drying device 2, a part enters boiler 22 and burns, remaining enters pyrolysis oven 3 and Low Temperature Thermal occurs
Solution reaction, reaction temperature are 400 DEG C, and high temperature upgraded coal a part of generation enters coal fired power generation subsystem, by the cold coal of high temperature
Device 29, low temperature cold coal device 30 are cooling, subsequently into 31 compression forming of compression-molding apparatus, produce the upgrading block being readily transported
Coal；Remaining high temperature upgraded coal and other thermal decomposition products enter in gasification furnace 5, occur with the high pressure extraction from steam turbine 23
Gasification reaction, reaction temperature are 1000 DEG C, generate the gentle slugging of synthesis gas, and gasification slag enters the burning of boiler 22, and synthesis gas enters
In methanol-fueled CLC subsystem, cools down by No. 1 air-water vapour heat exchanger 8, be cooled to 400 DEG C；A part of synthesis gas enters CO transformation
Device 9 adjusts H2/CO proportionality coefficient, then mixes with remaining synthesis gas, passes sequentially through 11, No. 5 air-waters of No. 3 air-water heat exchangers and change
Hot device 12, is reduced to 30 DEG C, and the synthesis gas after cooling enters purification device 13, the foreign gases such as removing sulphur, carbon dioxide, purification
The circulating air that synthesis gas and gas-liquid separation device 19 afterwards is isolated is mixed into the pressurization of compressor 14, is then changed by gas-gas
Hot device 15 preheats, and carries out methanol-fueled CLC into methanol-fueled CLC device 16, methanol/synthesis oxygen mixture of generation sequentially enters gas-
Gas heat exchanger 15, gas liquid exchanger 20, cooler 18 are cooled to 40 DEG C, and gas-liquid mixture after cooling enters gas-liquid separator
19, the synthesis gas a part isolated is as recyclegas, and the synthesis gas exported with purification device 13 mixes, remaining conduct is not anti-
Gas is answered to enter the burning of boiler 22；The crude carbinol isolated is heated by gas liquid exchanger 20, into methanol purification device 21, is produced
The raw higher methanol of purity；In solar energy upgrading subsystem, a part of solar energy heats conduction oil by groove type heat collector 4,
Into pyrolysis oven 3, heat is provided for pyrolytic process；A part of solar energy is projected on reflector 7 by heliostat 6, is then gathered
Collect in gasification furnace 5, provides heat for gasification；In coal fired power generation subsystem, gasification slag, unreacting gas and predrying coal
Enter boiler 22 as fuel to burn, heat water supply, the high-temperature steam of generation is mixed with from No. 1 air-water vapour heat exchanger 8
Into steam turbine 23, driven generator 24 generates electricity, and the steam discharge of generation enters condenser 25 and is cooled to condensed water, a portion
Into the cooling upgraded coal of low temperature cold coal device 30, a part enters No. 5 12 cooling syngas of air-water heat exchanger, remaining enters low pressure
Heater 26 is heated by the low-pressure pumping steam from steam turbine 23, and then three is mixed into the pressurization of feed pump 27, the height of generation
Pressure water a part enters high-pressure heater 28 and is heated by the high pressure extraction from steam turbine 23, and a part enters the cold coal device of high temperature
29 cooling upgraded coals, remaining enters No. 4 air-water heat exchangers 17, the reaction heat of Production of methanol is absorbed, subsequently into No. 3 gas-
Water- to-water heat exchanger 11 absorbs synthesis gas sensible heat, the high-temperature water of generation, and it is anti-that a part enters No. 2 absorption CO transformation of air-water heat exchangers 10
Heat is answered, by No. 1 air-water heat exchanger, absorbs high-temperature synthesis gas sensible heat, generates 570 DEG C of high-temperature steam and the generation of boiler 22
High-temperature steam mixing；Remaining high-temperature water that No. 3 air-water heat exchangers 11 generate goes out with the cold coal device 29 of high temperature, high-pressure heater 28
The high-temperature water mixing of mouth, enters boiler 22 as water supply.
Claims (2)
1. coal-based methanol synthesis and the power generating simultaneously system, including solar energy upgrading subsystem of a kind of integrated solar, methanol close
At subsystem, three major parts of coal fired power generation subsystem；It is characterized in that,
Coal breaker (1) connects pre-drying device (2), and pre-drying device (2) is separately connected boiler (22) and pyrolysis oven (3), is pyrolyzed
Furnace (3) is separately connected the cold coal device (29) of heat collector (4), gasification furnace (5) and high temperature of solar energy, the cold coal device (29) of high temperature and low temperature
Cold coal device (30), compression-molding apparatus (31) series connection；The cold coal device (29) of high temperature again respectively with the input port of high-pressure heater (28),
Delivery outlet be correspondingly connected with, high-pressure heater (28) is connect with the high pressure extraction of steam turbine (23), the height of steam turbine (23)
Pressure steam extraction is connect with gasification furnace (5) in solar energy upgrading subsystem again；The low pressure of low-pressure heater (26) and steam turbine (23)
Steam extraction connection, low temperature cold coal device (30) are correspondingly connected with the input port of low-pressure heater (26), delivery outlet respectively；Steam turbine
(23) generator (24) are connected, steam discharge connects condenser (25), and condenser (25) is connect with low-pressure heater (26) again；High pressure
It is connected between heater (28) and low-pressure heater (26) by feed pump (27)；High-pressure heater (28) again with boiler (22),
Steam turbine (23) series connection；No. 1 air-water heat exchanger (8) in gasification furnace (5) output connection methanol-fueled CLC subsystem, No. 1 air-water
Heat exchanger (8) is connect with steam turbine (23) again；No. 1 air-water heat exchanger (8) and CO converter (9), No. 2 air-water heat exchangers
(10) circuit is connected into；No. 1 air-water heat exchanger (8) is also directly connected to No. 3 air-water heat exchangers (11) around CO converter (9), and 3
Number air-water heat exchanger (11) is separately connected the delivery outlet of No. 2 air-water heat exchangers (10) and high-pressure heater (28) again；No. 3 gas-
Water- to-water heat exchanger (11) also with No. 5 air-water heat exchangers (12), purification device (13), compressor (14), gas-to-gas heat exchanger (15), first
Alcohol synthesizer (16) and No. 4 air-water heat exchangers (17) are connected into circuit；Wherein, No. 5 air-water heat exchangers (12) and low-pressure heating
The input port of device (26) and delivery outlet are separately connected；No. 4 air-water heat exchangers (17) also connect with the input port of high-pressure heater (28)
It connects；Compressor (14) and gas-to-gas heat exchanger (15), gas liquid exchanger (20) and gas-liquid separation device (19) are also connected into circuit；
Cooler (18) is separately connected gas liquid exchanger (20) and gas-liquid separation device (19)；Gas liquid exchanger (20) output connection first
Alcohol purifier (21).
2. the coal-based methanol synthesis and power generating simultaneously system of a kind of integrated solar according to claim 1, which is characterized in that
The solar energy is projected on reflector (7) by heliostat (6), is then gathered in gasification furnace (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820600524.8U CN208310851U (en) | 2018-04-25 | 2018-04-25 | A kind of the coal-based methanol synthesis and power generating simultaneously system of integrated solar |
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| CN201820600524.8U CN208310851U (en) | 2018-04-25 | 2018-04-25 | A kind of the coal-based methanol synthesis and power generating simultaneously system of integrated solar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442982A (en) * | 2018-04-25 | 2018-08-24 | 华北电力大学 | Coal-based methanol synthesis and the power generating simultaneously system of integrated solar |
-
2018
- 2018-04-25 CN CN201820600524.8U patent/CN208310851U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442982A (en) * | 2018-04-25 | 2018-08-24 | 华北电力大学 | Coal-based methanol synthesis and the power generating simultaneously system of integrated solar |
| CN108442982B (en) * | 2018-04-25 | 2023-08-29 | 华北电力大学 | Solar integrated coal-based methanol synthesis and power generation co-production system |
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