CN212198499U - Coal gasification conversion system suitable for power heat supply network - Google Patents
Coal gasification conversion system suitable for power heat supply network Download PDFInfo
- Publication number
- CN212198499U CN212198499U CN202020558541.7U CN202020558541U CN212198499U CN 212198499 U CN212198499 U CN 212198499U CN 202020558541 U CN202020558541 U CN 202020558541U CN 212198499 U CN212198499 U CN 212198499U
- Authority
- CN
- China
- Prior art keywords
- shift converter
- shift
- gas heater
- power heat
- coal gasification
- 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.)
- Active
Links
Images
Abstract
The utility model belongs to the technical field of coal chemical industry, and relates to a coal gasification conversion system adapting to a power heat supply network, which comprises a coarse coal gas separator, a coarse coal gas heater and a first conversion furnace; the coarse coal gas separator is sequentially connected with a coarse coal gas heater and a first shift converter, and the first shift converter is connected with the coarse coal gas heater; also comprises a steam superheater; the steam superheater is respectively connected with the crude gas heater and the first shift converter; also includes a boiler water heater; the boiler water heater is respectively connected with the coarse coal gas separator and the coarse coal gas heater; the boiler also comprises a waste boiler arranged on the pipelines of the steam superheater and the crude gas heater; the device also comprises a second conversion furnace; the second shift converter is connected with the raw gas heater. The utility model discloses enlarge system power heat supply network, the maximize utilizes the produced heat source of transform, and the stability of reinforcing system satisfies system methyl alcohol, hydrogen manufacturing system simultaneously and simplifies process flow to the requirement of transform gas, and equipment is few.
Description
Technical Field
The utility model belongs to the technical field of the coal chemical industry, a coal gasification transform system who adapts to power heat supply network is related to.
Background
Along with the development of coal gasification, the steam-water ratio of crude gas is gradually reduced, particularly the development of coal powder gasification and promotion furnace coal water slurry gasification, the process requirement of low steam-water ratio is adapted through conversion, and simultaneously, as the enthalpy value of the crude gas is reduced, the heat of the system needs to be reused as much as possible, so that the heat balance of the whole system is ensured, and the external heat requirement is reduced.
SUMMERY OF THE UTILITY MODEL
To the coal gasification transform system of current adaptation power heat supply network, the heat utilizes unreasonable, the technological complicacy and the many technical problem of equipment, the utility model provides an adaptation power heat supply network's coal gasification transform system when overall transform technology, enlarges system power heat supply network, and the produced heat of rational utilization transform stove, the maximize utilizes the transform produced heat source, and guarantee system energy consumption increases system heat utilization efficiency, heat recovery volume and hot high-order utilization, and the stability of reinforcing system, and process flow simplifies, and equipment is few.
In order to realize the purpose, the utility model discloses a technical scheme is:
a coal gasification conversion system adapting to a power heat supply network comprises a crude coal gas separator, a crude coal gas heater and a first conversion furnace;
the coarse coal gas separator is sequentially connected with the coarse coal gas heater and the first shift converter through pipelines, and the first shift converter is connected with the coarse coal gas heater through a pipeline.
Further, the coal gasification transformation system adapting to the power heat supply network also comprises a steam superheater; and the steam superheater is respectively connected with the crude gas heater and the first shift converter through pipelines.
Furthermore, the coal gasification conversion system adapting to the power heat supply network also comprises a boiler water heater; the boiler water heater is respectively connected with the coarse coal gas separator and the coarse coal gas heater through pipelines.
Furthermore, the coal gasification conversion system adapting to the power heat supply network also comprises a waste boiler arranged on a pipeline connecting the steam superheater and the raw gas heater; and a valve is arranged on a pipeline connecting the steam superheater and the crude gas heater.
Furthermore, the coal gasification conversion system adapting to the power heat supply network also comprises a second conversion furnace; and the second shift converter is connected with the crude gas heater through a pipeline.
Furthermore, the coal gasification conversion system adapting to the power heat supply network also comprises a steam drum; and the second shift converter is connected with the steam drum through a pipeline.
Furthermore, the coal gasification conversion system adapting to the power heat supply network also comprises a waste boiler; the first shift converter is sequentially connected with the waste boiler and the raw gas heater through pipelines; the waste boiler is connected with the first shift converter through a pipeline; a valve is arranged on a pipeline connecting the first shift converter and the raw gas heater
The coal gasification conversion system adapting to the power heat supply network also comprises a second conversion furnace and a steam drum; and the second shift converter is respectively connected with the raw gas heater and the steam drum through pipelines.
Further, the steam superheater is a shell and tube steam superheater or a spiral tube steam superheater.
Further, the first shift converter is a radial shift converter, an axial shift converter or an axial-radial shift converter.
The utility model has the advantages that:
1. in the utility model, the coal gasification conversion system adapted to the power heat supply network comprises a coarse coal gas separator, a boiler water heater, a coarse coal gas heater, a steam superheater and a first conversion furnace; the heat of the system is further recycled in the steam superheater and the raw gas heater according to the process requirement by matching the steam superheater and the shift converter, and the steam generated by the steam superheating is sent to a power steam pipe network to be used as power to drive a steam turbine of the gasification system, so that the high-level heat of the shift converter can be effectively recycled; simultaneously the coarse coal gas is sent to the transform after-system with transform gas together, and synthetic system methyl alcohol, the utility model discloses can rational utilization system heat, improve entire system's thermal efficiency, process flow is simple, and equipment is few.
2. In the utility model, the coal gasification conversion system adapted to the power heat supply network comprises a coarse coal gas separator, a coarse coal gas heater, a first conversion furnace, a waste boiler, a second conversion furnace and a steam drum; the first shift converter and the second shift converter are integrated with the steam superheater, so that the heat of a shift system can be recycled, the temperature of shift gas of the system is reduced through a waste boiler and a steam drum, a heat source generated by shift is utilized to the maximum extent, and the energy consumption of the system is guaranteed; the crude gas is sequentially sent to hydrogen production or nitrogen production through secondary transformation.
3. The utility model discloses in, the coal gasification transform system who adapts to power heat supply network includes coarse coal gas separator, coarse coal gas heater, first transform stove, waste boiler, steam over heater, second transform stove and steam pocket, carries out steam superheating to the transform stove through steam over heater, increases the power heat supply network, increases system heat utilization efficiency, heat recovery volume and hot high-order utilization, and the steam that steam superheating produced sends power steam pipe network, as power drive power machinery, strengthens the stability of system; meanwhile, the converted gas generated by the secondary conversion is sent to produce hydrogen or nitrogen.
4. The utility model discloses in, the structure of first transform stove is multiple, according to the transform requirement of reality, mutually supports with steam superheater, exhaust pot and second transform stove, can satisfy the demand of different transform back system methyl alcohol, hydrogen manufacturing or system nitrogen process gas, and the technology is simplified, and equipment is few.
Drawings
FIG. 1 is a diagram of a coal gasification shift system according to embodiment 1 of the present invention;
FIG. 2 is a diagram of a coal gasification shift system according to embodiment 2 of the present invention;
FIG. 3 is a diagram of a coal gasification shift system according to embodiment 3 of the present invention;
FIG. 4 is a diagram of a coal gasification shift system according to embodiment 4 of the present invention;
wherein:
1-coarse coal-gas separator; 2-boiler water heater; 3-raw gas heater; 4-steam superheater; 5, a first conversion furnace; 6-waste pot; 7-a second shift converter; 8-steam pocket; 9-valve.
Detailed Description
The present invention will now be described in detail with reference to the accompanying drawings and examples.
The utility model provides a coal gasification conversion system adapting to a power heat supply network, which comprises a coarse coal gas separator 1, a coarse coal gas heater 3 and a first conversion furnace 5; the coarse coal gas separator 1 is sequentially connected with a coarse coal gas heater 3 and a first shift converter 5 through pipelines, and the first shift converter 5 is connected with the coarse coal gas heater 3 through a pipeline.
In the utility model, the coal gasification conversion system adapted to the power heat supply network also comprises a steam superheat device 4; the steam superheater 4 is respectively connected with the raw gas heater 3 and the first shift converter 5 through pipelines; the coal gasification conversion system suitable for the power heat supply network also comprises a boiler water heater 2; the boiler water heater 2 is respectively connected with the crude gas separator 1 and the crude gas heater 3 through pipelines.
In the utility model, the coal gasification conversion system adapting to the power heat supply network also comprises a waste boiler 6 arranged on a pipeline connecting the steam superheater 4 and the raw gas heater 3; a valve 9 is arranged on a pipeline connecting the steam superheater 4 and the raw gas heater 3. The device also comprises a second shift converter 7; the second shift converter 7 is connected with the raw gas heater 3 through a pipeline. Also comprises a steam drum 8; the second shift converter 7 is connected with a steam drum 8 through a pipeline.
In the utility model, the coal gasification conversion system adapted to the power heat supply network also comprises a waste boiler 6; the first shift converter 5 is sequentially connected with the waste boiler 6 and the raw gas heater 3 through pipelines; the waste boiler 6 is connected with the first shift converter 5 through a pipeline; a valve 9 is arranged on a pipeline connecting the first shift converter 5 and the raw gas heater 3. The device also comprises a second shift converter 7 and a steam drum 8; the second shift converter 7 is respectively connected with the raw gas heater 3 and the steam drum 8 through pipelines.
The utility model discloses in, steam superheater 4 is shell and tube steam superheater or spiral tube steam superheater.
The utility model discloses in, first shift converter 5 is radial shift converter, axial shift converter or axial radial shift converter.
Example 1
Referring to fig. 1, the coal gasification shift system adapted to the power heat supply network provided by the embodiment includes a raw coal gas separator 1, a boiler water heater 2, a raw coal gas heater 3, a steam superheater 4 and a first shift converter 5.
In the embodiment, an outlet at the top of the coarse coal-gas separator 1 is respectively connected with a tube-side inlet of a boiler water heater 2 and a tube-side inlet of a coarse coal-gas heater 3 through pipelines; a tube pass outlet at the top of the raw gas heater 3 is connected with an air inlet at the top of the first shift converter 5; and a regulating valve is arranged on a pipeline between an outlet at the top of the coarse coal-gas separator 1 and a tube pass inlet of the boiler water heater 2. The tube side outlet of the boiler water heater 2 is connected with a conversion gas pipeline through a pipeline; the shell side inlet of the boiler water heater 2 and the shell side outlet of the boiler water heater 2 are respectively connected with a boiler water pipeline.
In this embodiment, the outlet at the top of the coarse gas separator 1 is further connected with the gas inlet at the top of the first shift converter 5, and the connected pipeline is provided with the regulating valve, so that a small part of the coarse gas directly enters the first shift converter 5 to be mixed with a large part of the coarse gas preheated by the coarse gas heater 3, and the temperature of the inlet of the first shift converter 5 is regulated.
The tube pass outlet of the raw gas heater 3 is connected with the inlet of the first shift converter 5 through a pipeline; an outlet of the first shift converter 5 is respectively connected with a shell pass inlet of the crude gas heater 3 and a shell pass inlet of the steam superheater 4 through pipelines, and a valve is arranged on the pipeline between the outlet of the first shift converter 5 and the shell pass inlet of the crude gas heater 3; the shell pass outlet of the steam superheater 4 is connected with the shell pass inlet of the raw gas heater 3 through a pipeline; the shell side outlet of the raw gas heater 3 is connected with the tube side inlet of the boiler water heater 2 through a pipeline; the tube side inlet of the steam superheater 4 is connected with a saturated steam pipeline through a pipeline.
In the present embodiment, the first shift converter 5 is an axial shift converter, and specifically, the first shift converter 5 is an adiabatic shift converter, a catalyst bed is provided in the first shift converter 5, and a presulfurized catalyst is filled in the catalyst bed.
In the coal gasification shift system adapted to the power heat supply network provided by the embodiment, when the coal gas produced by coal gasification is shifted, the crude coal gas is separated by the crude coal gas separator 1 and then divided into three paths,
in the first path, a small part of crude gas from the top of the crude gas separator 1 directly enters a first shift converter 5, is mixed with a large part of crude gas preheated by a crude gas heater 3, and the temperature of an inlet of the first shift converter 5 is adjusted;
in the second path, the crude gas from the top of the crude gas separator 1 enters the tube pass inlet of the crude gas heater 3, the crude gas exchanges heat with the shell pass of the crude gas heater 3, then enters the top inlet of the first shift converter 5 from the tube pass outlet of the crude gas heater 3, and CO in the crude gas is subjected to shift reaction under the action of a pre-vulcanized catalyst to generate CO2And H2The conversion gas is divided into two branches after coming out from the bottom of the first conversion furnace 5, one branch is that the conversion gas coming out from the bottom of the first conversion furnace 5 enters the shell pass of the steam superheater 4 from the shell pass inlet of the steam superheater 4 and exchanges heat with 2.5MPa saturated steam in the tube pass of the steam superheater 4, the temperature of the 2.5MPa saturated steam rises to become superheated steam, and the superheated steam enters a steam pipe network for recycling and can be used as a steam power driving system machine to work, such as a steam driven steam turbine; after the heat of the converted gas is reduced, the converted gas enters a shell pass inlet of the crude gas heater 3 from a shell pass outlet of the steam superheater 4 to exchange heat with crude gas in a tube pass of the crude gas heater 3, then the converted gas coming out of the shell pass outlet of the crude gas heater 3 enters the boiler water heater 2 from a tube pass inlet of the boiler water heater 2 to exchange heat with boiler water passing through the shell pass of the boiler water heater 2, the heat brought out by the converted gas is recycled, the heat of the converted gas is reduced at the same time, and finally the converted gas is sent to a converted gas pipeline from the tube pass outlet of the boiler water heater 2 and sent to the next process;
and in the third path, a small part of the crude gas coming out from the top of the crude gas separator 1 enters a tube pass inlet of the boiler water heater 2 to exchange heat with boiler water passing through a shell pass of the boiler water heater 2, the boiler water carries heat and then enters a boiler water pipeline, the heat of the crude gas is reduced and then is sent to a conversion methanol preparation process from a conversion gas pipeline, the conversion methanol preparation process is used for balancing system heat, and meanwhile, gas components at an outlet of the conversion process are adjusted, so that the efficiency of preparing methanol from the conversion gas is improved.
In the embodiment, the raw gas is subjected to heat exchange by the boiler water heater 2 and then sent to the system after conversion, the raw gas, the process gas after conversion, the converted gas generated by the first path of raw gas and the second path of raw gas after passing through the first conversion furnace 5 is further subjected to heat exchange and cooling and then sent to the system after conversion, the raw gas generated in the third path is sent to the system after conversion, and the two paths of gas are mixed and then subjected to the process of preparing methanol by the converted gas.
Example 2
Referring to fig. 2, the present embodiment is different from embodiment 1 in that the first shift converter 5 is an axial-radial shift converter, and specifically, the first shift converter 5 is an adiabatic shift converter.
In the embodiment, the raw gas is subjected to heat exchange by the boiler water heater 2 and then sent to the system after conversion, the raw gas, the process gas after conversion, the converted gas generated by the first path of raw gas and the second path of raw gas after passing through the first conversion furnace 5 is further subjected to heat exchange and cooling and then sent to the system after conversion, the raw gas generated in the third path is sent to the system after conversion, and the two paths of gas are mixed and then subjected to the process of preparing methanol by the converted gas.
Example 3
Referring to fig. 3, the coal gasification shift system adapted to the power heat supply network provided by the embodiment includes a raw coal gas separator 1, a raw coal gas heater 3, a steam superheater 4, a first shift converter 5, a waste boiler 6, a second shift converter 7, and a steam drum 8.
The top outlet of the coarse coal gas separator 1 is sequentially connected with the coarse coal gas heater 3 and the tube pass inlet of the first shift converter 5 through pipelines; the tube side outlet of the first shift converter 5 is connected with the tube side inlet of the steam superheater 4 through a pipeline; the tube pass outlet of the steam superheater 4 is respectively connected with the gas inlets of the raw gas heater 3 and the waste boiler 6; a steam outlet of the waste boiler 6 is connected with a shell pass inlet of the steam superheater 4 through a pipeline; the shell pass outlet of the steam superheater 4 is connected with a boiler water pipeline through a pipeline; the gas outlet of the waste boiler 6 is connected with the raw gas heater 3 through a pipeline; the water inlet of the waste boiler 6 is connected with boiler water through a pipeline; the tube pass inlet of the second shift converter 7 is connected with the raw gas heater 3 through a pipeline; the tube pass outlet of the second shift converter 7 is connected with a system pipeline after the shift through a pipeline; the shell side inlet of the second shift converter 7 is connected with the shell side outlet of the steam drum 8, the shell side outlet of the second shift converter 7 is connected with the shell side inlet of the steam drum 8, and the tube side of the steam drum 8 is connected with boiler water through pipelines.
In this embodiment, the steam superheater 4 is a spiral-tube steam superheater; specifically, a valve 9 is arranged on a pipeline between a tube pass outlet of the steam superheater 4 and the raw gas heater 3; in the actual process, the opening and closing of the pipeline can be controlled through the valve 9, and the inlet temperature of the second shift converter is adjusted, so that the heat of the system can be reasonably utilized to the maximum extent, and the energy consumption of the system is guaranteed; a regulating valve is arranged on a pipeline between a steam outlet of the waste boiler 6 and a shell pass inlet of the steam superheater 4; the heat exchange and exchange between the boiler water and the steam superheater are adjusted, and the heat exchange balance is realized.
In the present embodiment, the first shift converter 5 is an axial shift converter; specifically, the first shift converter 5 is a steam heat exchange type shift converter; the first shift converter 5 is a heat exchange type shift converter; the first shift converter 5 is matched with the steam superheater 4 for steam superheating, and the second shift converter 7 is a water-cooled tube type shift converter, and particularly adopts a spiral tube type shift converter.
In the embodiment, the steam conversion device further comprises a steam pipeline connected with the tube pass inlet of the first conversion furnace 5, and the steam pipeline is provided with the regulating valve, so that during actual production, the conversion reaction in the first conversion furnace 5 is ensured to be carried out by adding saturated steam, and the conversion efficiency is improved.
In this embodiment, the first shift converter 5 is provided with a catalyst layer, which is divided into an upper layer and a lower layer; in practice, the catalyst is selected from the low water carbon catalysts commonly used in industry.
In the coal gasification conversion system adapted to the power heat supply network provided by this embodiment, when the coal gas produced by the water coal slurry gasification of the jin Hua furnace is converted, the crude coal gas is separated by the crude coal gas separator 1, the crude coal gas coming out of the top of the crude coal gas separator 1 passes through the tube pass inlet of the crude coal gas heater 3, and the crude coal gas are addedAfter heat exchange is carried out on gas in the shell pass of the heater 3, the gas enters the tube pass inlet of the first shift converter 5 from the tube pass outlet of the raw gas heater 3, and CO in the raw gas is subjected to shift reaction under the action of a catalyst to generate CO2And H2The conversion gas is superheated through the tube pass of the steam superheater 4 and boiler water in the steam superheater 4 after coming out of the tube pass outlet of the first conversion furnace 5, and is divided into two branches after heat recycling is carried out;
one branch is that the converted gas from the tube pass outlet of the steam superheater 4 directly enters the shell pass of the raw gas heater 3 to exchange heat with the raw gas passing through the tube pass of the raw gas heater 3, and the heat of the conversion system is recycled; the other branch is that the primary conversion gas coming out from the tube pass outlet of the steam superheater 4 enters the air inlet of the waste boiler 6, exchanges heat with boiler water passing through the waste boiler 6, then the primary conversion gas enters the shell pass of the crude gas heater 3 from the air outlet of the waste boiler 6 and exchanges heat with crude gas passing through the tube pass of the crude gas heater 3 for the second time, the heat of the conversion system is firstly superheated, and then the crude gas is preheated, so that the heat of the conversion system is utilized to the maximum.
In this embodiment, during actual production, a valve on a steam pipeline connected to a tube side inlet of the first shift converter 5 may be controlled to supplement saturated steam into the first shift converter 5, so as to ensure the progress of a shift reaction in the first shift converter 5 and improve the shift efficiency;
the primary conversion gas coming out from the shell pass of the raw gas heater 3 enters the tube pass inlet of the second conversion furnace 7, the primary conversion gas is subjected to secondary conversion in the second conversion furnace 7, and further the CO in the primary conversion gas is subjected to conversion reaction to generate CO2And H2At the moment, steam in the shell side of the second shift converter 7 is connected with the shell side of the steam drum 8 and exchanges heat with boiler water flowing through the tube side of the steam drum 8, the temperature in the second shift converter 7 is ensured to be 260 ℃, secondary shift is promoted to occur, and finally, secondary shift gas is sent to a post-shift system from the tube side outlet of the second shift converter 7 through a pipeline to produce hydrogen or nitrogen.
Example 4
Referring to fig. 4, the coal gasification shift system adapted to the power heat supply network provided by the embodiment includes a raw coal gas separator 1, a raw coal gas heater 3, a first shift converter 5, a waste boiler 6, a second shift converter 7 and a steam drum 8.
An outlet at the top of the coarse coal gas separator 1 is sequentially connected with a coarse coal gas heater 3 and a tube pass inlet of a first shift converter 5 through pipelines; the tube pass outlet of the first shift converter 5 is respectively connected with the raw gas heater 3 and the waste boiler air inlet through pipelines; the gas outlet of the waste boiler 6 is connected with the raw gas heater 3 through a pipeline; the water inlet of the waste boiler 6 is connected with boiler water through a pipeline; a steam outlet of the waste boiler 6 is connected with a tube side inlet of the first shift converter 5 through a pipeline; the tube pass inlet of the second shift converter 7 is connected with the raw gas heater 3 through a pipeline; the tube pass outlet of the second shift converter 7 is connected with a system pipeline after the shift through a pipeline; the shell side inlet of the second shift converter 7 is connected with the shell side outlet of the steam drum 8, the shell side outlet of the second shift converter 7 is connected with the shell side inlet of the steam drum 8, and the tube side of the steam drum 8 is connected with boiler water through pipelines.
In this embodiment, a valve 9 is provided on a pipeline between the tube side outlet of the first shift converter 5 and the raw gas heater 3. In the actual process, the opening and closing of the pipeline can be controlled through the valve 9, so that the heat of the system can be reasonably utilized to the maximum extent, and the energy consumption of the system is guaranteed.
In the present embodiment, the first shift converter 5 is an axial shift converter; specifically, the first shift converter 5 is a spiral-tube steam shift converter, and the first shift converter 5 can overheat steam through a spiral tube, can integrate the function of a steam superheater, and can overheat during conversion; the second shift converter 7 is a radial shift converter.
In the embodiment, the steam conversion device further comprises a steam pipeline connected with the tube pass inlet of the first conversion furnace 5, and the steam pipeline is provided with the regulating valve, so that during actual production, the conversion reaction in the first conversion furnace 5 is ensured to be carried out by adding saturated steam, and the conversion efficiency is improved.
In the present embodiment, the first shift converter 5 is provided with a catalyst layer. Filling a catalyst in the catalyst bed layer; in practice, the catalyst is selected from the low water carbon catalysts commonly used in industry.
The coal gasification conversion system adapted to the power heat supply network provided by the embodiment is used for conversionIn the process, after the crude gas is separated by the crude gas separator 1, the crude gas coming out of the top of the crude gas separator 1 passes through the tube pass inlet of the crude gas heater 3, the crude gas exchanges heat with the gas in the shell pass of the crude gas heater 3, then enters the tube pass inlet of the first shift converter 5 from the tube pass outlet of the crude gas heater 3, and CO in the crude gas is subjected to shift reaction under the action of a catalyst to generate CO2And H2The conversion gas is divided into two branches after coming out from a tube pass outlet of the first conversion furnace 5;
one branch is that the conversion gas from the tube pass outlet of the first conversion furnace 5 directly enters the shell pass of the raw gas heater 3 to exchange heat with the raw gas passing through the tube pass of the raw gas heater 3, and the heat of the conversion system is recycled; the other branch is that the primary conversion gas coming out from the tube pass outlet of the first conversion furnace 5 enters the gas inlet of the waste boiler 6, and after primary heat exchange with boiler water passing through the waste boiler 6, the primary conversion gas enters the shell pass of the crude gas heater 3 from the gas outlet of the waste boiler 6 to perform secondary heat exchange with crude gas passing through the tube pass of the crude gas heater 3, so that the heat of the system is fully utilized, the recycling is realized, and the maximum utilization is achieved.
In this embodiment, during actual production, a valve on a steam pipeline connected to a tube side inlet of the first shift converter 5 may be controlled to supplement saturated steam into the first shift converter 5, so as to ensure the progress of a shift reaction in the first shift converter 5 and improve the shift efficiency;
the primary conversion gas coming out from the shell pass of the raw gas heater 3 enters the tube pass inlet of the second conversion furnace 7, the primary conversion gas is subjected to secondary conversion in the second conversion furnace 7, and further the CO in the primary conversion gas is subjected to conversion reaction to generate CO2And H2At the moment, steam in the shell side of the second shift converter 7 is connected with the shell side of the steam drum 8 and exchanges heat with boiler water flowing through the tube side of the steam drum 8, the temperature in the second shift converter 7 is ensured to be 260 ℃, secondary shift is promoted to occur, and finally the secondary shift gas is sent to a post-shift system preparation form for hydrogen production or nitrogen production from the tube side outlet of the second shift converter 7 through a pipeline.
To sum up, the utility model provides an adaptation power heat supply network's coal gasification transform system, high-order heat to the shift reaction production, preheat the coarse coal gas behind the superheated steam again, increase the power heat supply network, can ensure the demand of technology power to power steam, the available superheated steam saturation of technology heat demand increases the output, the maximize utilizes the produced heat of transform, also can reduce the consumption of the cold volume of system simultaneously, this system can the produced heat of rational utilization transform stove, the maximize, the produced heat source of optimization utilization transform, guarantee system consumption, effectively solved current transform technology heat supply network and plan not enough, the unreasonable shortcoming of heat utilization, and can guarantee the coarse coal gas system methyl alcohol after the transform simultaneously, the transform demand of hydrogen manufacturing or nitrogen manufacturing, the technology is simplified, and equipment is few.
Claims (10)
1. A coal gasification transformation system adapting to a power heat supply network is characterized in that: the coal gasification conversion system suitable for the power heat supply network comprises a crude coal gas separator (1), a crude coal gas heater (3) and a first conversion furnace (5);
the coarse coal gas separator (1) is sequentially connected with a coarse coal gas heater (3) and a first shift converter (5) through pipelines, and the first shift converter (5) is connected with the coarse coal gas heater (3) through a pipeline.
2. The power heat network adapted coal gasification shift system of claim 1, wherein: the coal gasification transformation system adapting to the power heat supply network also comprises a steam superheater (4); the steam superheater (4) is respectively connected with the raw gas heater (3) and the first shift converter (5) through pipelines.
3. The power heat network adapted coal gasification shift system of claim 2, wherein: the coal gasification transformation system adapting to the power heat supply network also comprises a boiler water heater (2); the boiler water heater (2) is respectively connected with the coarse coal gas separator (1) and the coarse coal gas heater (3) through pipelines.
4. The power heat network adapted coal gasification shift system of claim 2, wherein: the coal gasification conversion system adapting to the power heat supply network also comprises a waste boiler (6) arranged on a pipeline connecting the steam superheater (4) and the crude gas heater (3); and a valve (9) is arranged on a pipeline connecting the steam superheater (4) and the raw gas heater (3).
5. The power heat network adapted coal gasification shift system of claim 4, wherein: the coal gasification conversion system adapting to the power heat supply network also comprises a second conversion furnace (7); the second shift converter (7) is connected with the raw gas heater (3) through a pipeline.
6. The power heat network adapted coal gasification shift system of claim 5, wherein: the coal gasification conversion system adapting to the power heat supply network also comprises a steam drum (8); the second shift converter (7) is connected with the steam drum (8) through a pipeline.
7. The power heat network adapted coal gasification shift system of claim 1, wherein: the coal gasification transformation system adapting to the power heat supply network also comprises a waste boiler (6); the first shift converter (5) is sequentially connected with the waste boiler (6) and the raw gas heater (3) through pipelines; the waste boiler (6) is connected with the first shift converter (5) through a pipeline; and a valve (9) is arranged on a pipeline connecting the first shift converter (5) and the raw gas heater (3).
8. The power heat network adapted coal gasification shift system of claim 7, wherein: the coal gasification conversion system adapting to the power heat supply network also comprises a second conversion furnace (7) and a steam drum (8); and the second shift converter (7) is respectively connected with the raw gas heater (3) and the steam drum (8) through pipelines.
9. The power heat network adapted coal gasification shift system according to any one of claims 2-6, wherein: the steam superheater (4) is a shell and tube steam superheater or a spiral tube steam superheater.
10. The power heat network adapted coal gasification shift system of claim 1, wherein: the first shift converter (5) is a radial shift converter, an axial shift converter or an axial-radial shift converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020558541.7U CN212198499U (en) | 2020-04-15 | 2020-04-15 | Coal gasification conversion system suitable for power heat supply network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020558541.7U CN212198499U (en) | 2020-04-15 | 2020-04-15 | Coal gasification conversion system suitable for power heat supply network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212198499U true CN212198499U (en) | 2020-12-22 |
Family
ID=73832587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020558541.7U Active CN212198499U (en) | 2020-04-15 | 2020-04-15 | Coal gasification conversion system suitable for power heat supply network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212198499U (en) |
-
2020
- 2020-04-15 CN CN202020558541.7U patent/CN212198499U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101704513B (en) | Shunting-type isothermal sulfur-tolerant conversion process and equipment thereof | |
| CN105508051B (en) | High-temperature gas-cooled reactor helium gas indirect cyclic process hydrogen manufacturing coupled electricity-generation system and method | |
| CN106414330B (en) | The technique for producing ammonia and its derivative, especially urea | |
| CN107359361A (en) | A kind of natural gas hydrogen preparation and skid-mounted type integrating device and method with Proton Exchange Membrane Fuel Cells integrated thermal electric cold triple supply | |
| CN207134431U (en) | A kind of natural gas hydrogen preparation and the skid-mounted type integrating device with Proton Exchange Membrane Fuel Cells integrated thermal electric cold triple supply | |
| CN110550602B (en) | Controllable semi-isothermal conversion process for high-concentration carbon monoxide for oxo synthesis | |
| CN108313981B (en) | Solar hydrogen-electricity-methanol co-production energy storage system and application method thereof | |
| CN205035336U (en) | Resistant sulphur transform process systems of high concentration CO part | |
| CN104284859A (en) | Method of revamping of ammonia plant fed with natural gas | |
| CN104153832A (en) | Comprehensive efficient power generation method and system by utilization of iron and steel enterprise waste energy | |
| CN105905869B (en) | A kind of coal hydrogen manufacturing CO converts Poly-generation method and device | |
| CN212198499U (en) | Coal gasification conversion system suitable for power heat supply network | |
| Ni et al. | Study of two innovative hydrogen and electricity co-production systems based on very-high-temperature gas-cooled reactors | |
| CN207227003U (en) | A kind of device that air cooling cogeneration in station is realized using LNG receiving stations boil-off gas | |
| CN101659879B (en) | Chemical-electric poly-generation method and equipment | |
| CN106766965B (en) | A kind of converter and heater for rolling steel waste heat integrated power generation system | |
| CN211688250U (en) | Antitoxic isothermal converter | |
| CN105781644B (en) | The Wave crest and wave trough control method of the energy-storing and power-generating system of power system load regulation | |
| CN103557597A (en) | MTP (methanol to propylene) reaction mixed gas heat recovery method and system | |
| CN210419229U (en) | Conversion system for preparing methanol by gasifying coal water slurry | |
| CN103883364A (en) | Method for solving combined heat and power generation, split-shaft heat supply turbine generating set, and operating method of split-shaft heat supply turbine generating set | |
| CN112978677A (en) | CO conversion device with two furnaces connected in series | |
| CN219839469U (en) | Small-scale conversion device for regulating hydrogen-carbon balance | |
| CN201439492U (en) | Shunting isothermal sulphur-resisting conversion device | |
| CN210419228U (en) | Conversion system for preparing ammonia by gasifying coal water slurry to prepare hydrogen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |