CN105419875B - One kind strengthens medium isolation and quick switching structure - Google Patents
One kind strengthens medium isolation and quick switching structure Download PDFInfo
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- CN105419875B CN105419875B CN201510966993.2A CN201510966993A CN105419875B CN 105419875 B CN105419875 B CN 105419875B CN 201510966993 A CN201510966993 A CN 201510966993A CN 105419875 B CN105419875 B CN 105419875B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/50—Fuel charging devices
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/723—Controlling or regulating the gasification process
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Pipeline Systems (AREA)
Abstract
The invention provides one kind to strengthen medium isolation and quick switching structure, including super-pressure nitrogen connects hand valve, carbon dioxide teletransmission pressure controller, pressure-regulating valve, tight shutoff switch valve with super-pressure carbon dioxide；The super-pressure nitrogen connects hand valve, pressure-regulating valve with super-pressure carbon dioxide, pipeline is connected tight shutoff switch valve successively, tight shutoff switch valve end connects super-pressure nitrogen system, and super-pressure nitrogen is connected super-pressure carbon dioxide system with super-pressure carbon dioxide connection hand valve end；The pressure-regulating valve is connected by carbon dioxide teletransmission pressure controller and controlled, in the pipeline connection of carbon dioxide teletransmission pressure controller pressure sensitive end connection super-pressure carbon dioxide system.The present invention can realize that super-pressure nitrogen switches to super-pressure carbon dioxide, super-pressure carbon dioxide switches to the steady of super-pressure nitrogen procedure.
Description
Technical field
The present invention relates to one kind to strengthen medium isolation and quick switching structure.
Background technology
Have to use inert gas in powdered coal pressuring gasified technology, its main application includes as follows：Pulverized coal preparation needs
Want inert environments；Coal dust pressurized delivered needs indifferent gas fluidisation, coal dust lock hopper, and pressurising needs to consume indifferent gas, coal dust strength repeatedly
The power gas of conveying；Dry method ash disposal system needs indifferent gas fluidisation, dry coal ash air lift, Geldart-D particle dry coal ash power gas；Inertia
Gas is used also including dreg-locking hopper pressurising, the dry gas seals of recycle compressor, oxygen pipeline purging, burner cooling water buffer tank voltage stabilizing
Deng.
Nitrogen belongs to due to being easy to obtained and can be widely used in chemical industry life by the byproduct of air separating-purifying oxygen
It is conventional chemical industry inert gas in production, while nitrogen still synthesizes the unstripped gas of ammonia, high concentration carbon dioxide gas is coal
The waste gas of chemical industry by-product, due to its inert nature, it is not involved in reacting at normal temperatures, is reacted at high temperature with the carbon in coal,
And it is the unstripped gas of methanol-fueled CLC.
In ammonia from coal or ammonia and methanol integrated production technique, the nitrogen as power gas is not involved in closing for the technique of methanol production
Into, also waste the energy, increase consumption, and by carbon dioxide introduce replace part nitrogen, apply conveyed including coal dust, coal dust lock
Struggle against blowback of pressurising, gasification furnace and ceramic filter etc., and only plant running does not save the expense of outsourcing technique nitrogen, while can
Adjust gas component in follow-up methanol device, and a kind of utilization of resources, energy-conservation, the means of reduction waste gas discharge.Existing big portion
Divide in powdered coal pressuring gasified technology all using nitrogen+carbon dioxide collectively as the technique of system. Inert gas, its nitrogen system stream
Journey：Super-pressure nitrogen comes from air-separating plant liquid nitrogen pump, and super-pressure carbon dioxide comes from carbon-dioxide gas compressor, super-pressure nitrogen
Gas is divided into two-way into device battery limit (BL), goes heat exchanger to enter nitrogen buffer tank after heating all the way, passes through nitrogen buffer tank outlet pressure
Each high pressure nitrogen user is gone after force regulating valve decompression, another way is replaced when super-pressure carbon dioxide interrupts as carbon dioxide
For gas, after being heated into heat exchanger, it is divided into two parts again, a part is directly entered system blowback；Another part enters titanium dioxide
Carbon surge tank, each user is gone after being depressurized by carbon dioxide buffer tank outlet pressure regulating valve.
In this mode：
1. super-pressure carbon dioxide utilizes for waste gas recovery, ability output after needing full factory's plant running normal, in super-pressure
After carbon dioxide output, super-pressure nitrogen need to switch to super-pressure carbon dioxide, and scene closes super-pressure nitrogen and removes super-pressure two
The twice hand valve of carbonoxide, open the battery limit (BL) hand valve of super-pressure carbon dioxide, in the case of valve has back pressure, controlled valve ratio
It is more difficult；
2. in normal course of operation, because downstream unit stoppage in transit or carbon-dioxide gas compressor failure stop jumping, operating personnel connect
It is on the scene after to the instruction of switching gas, acts three hand valves, super-pressure carbon dioxide can not switch to super-pressure nitrogen rapidly,
The risk of the low initiating device parking of carbon dioxide system pressure be present in coal gasification；
During 3. super-pressure nitrogen normally is switched into super-pressure carbon dioxide, because hand valve controls, it is impossible to steady
Switching, cause the pressure oscillation of the nitrogen system of full factory；
4. because super-pressure pressure carbon dioxide is higher than super-pressure nitrogen pressure, the sealing grade of the regulating valve of connection is not
It is enough, cause super-pressure carbon dioxide leakage, because carbon dioxide is sour gas, to be used to super-pressure nitrogen system part nitrogen
There is different degrees of damage in family, cause problems with：Burner cooling water (5.0Mpa, 200 DEG C) system pipeline is caused to be let out
Leakage, the leakage of coal burner head, the damage of device recycle gas compressor dry gas seals, oxygen pipeline are caused danger when purging, dreg-locking hopper
Calcium carbonate is generated during pressurising and causes equipment and pipeline scale, the corrosion of ceramic filter blowback quck-opening valve internals triggers failure.
The content of the invention
In order to solve the above technical problems, the invention provides one kind to strengthen medium isolation and quick switching structure, the reinforcement
Medium is isolated and quick switching structure can make the two media of connecting pipe realize thoroughly isolation, and realizes that fast and stable switches,
Improve the safe for operation and stability of device, overcome the deficiencies in the prior art.
The present invention is achieved by the following technical programs.
A kind of reinforcement medium isolation provided by the invention and quick switching structure, including super-pressure nitrogen and super-pressure dioxy
Change carbon connection hand valve, carbon dioxide teletransmission pressure controller, pressure-regulating valve, tight shutoff switch valve；The super-pressure nitrogen
Hand valve, pressure-regulating valve are connected with super-pressure carbon dioxide, pipeline is connected tight shutoff switch valve successively, tight shutoff switch valve
End connection super-pressure nitrogen system, super-pressure nitrogen are connected super-pressure carbon dioxide system with super-pressure carbon dioxide connection hand valve end
System；Institute's pressure-regulating valve is stated to be connected by carbon dioxide teletransmission pressure controller and controlled, carbon dioxide teletransmission pressure controller pressure
Induction end pipeline is connected to the pipeline that super-pressure nitrogen connects hand valve and super-pressure carbon dioxide system with super-pressure carbon dioxide
In connection.
The super-pressure nitrogen system is connected by the pipeline of tight shutoff switch valve to be begun, and pipeline is connected with super-pressure nitrogen successively
Air valve, super-pressure nitrogen heater, super-pressure nitrogen buffer tank, high pressure nitrogen pressure-control valve, and by high pressure nitrogen pressure
Control valve pipeline is connected to downstream high pressure nitrogen user；Connect in the pipeline of super-pressure nitrogen heater and super-pressure nitrogen buffer tank
In connecing, super-pressure nitrogen pressure table is provided with；The intake line of super-pressure nitrogen accesses to tight shutoff switch valve and super-pressure
In pipeline connection between nitrogen valve.
The pipeline that the super-pressure carbon dioxide system is connected hand valve by super-pressure nitrogen with super-pressure carbon dioxide is connected
Begin, pipeline is connected with super-pressure CO2 heater, super-pressure carbon dioxide buffer tank, high-pressure carbon dioxide pressure control successively
Valve processed, high-pressure carbon dioxide user；Connected in super-pressure CO2 heater with the pipeline of super-pressure carbon dioxide buffer tank
In, the outlet of super-pressure CO2 heater is additionally coupled to super-pressure carbon dioxide user；In super-pressure nitrogen and super-pressure two
Carbonoxide is connected in the pipeline connection between hand valve and super-pressure CO2 heater, in carbon dioxide teletransmission pressure controller
Connection rear end, have super-pressure carbon dioxide via super-pressure carbon dioxide battery limit (BL) hand valve pipeline access.
The downstream high pressure nitrogen user including recycle gas compressor do dry gas seals, oxygen pipeline purging, dreg-locking hopper pressurising,
The voltage stabilizing of burner cooling water buffer tank, ceramic filter back-flushing valve are any one or more in power gas, other nitrogen users.
The carbon dioxide teletransmission pressure controller, pressure-regulating valve, the control mode of tight shutoff switch valve are：
Pressure-regulating valve is opened when 1. single super-pressure nitrogen input or super-pressure carbon dioxide input, super-pressure nitrogen
Pressure-regulating valve closing when being inputted with super-pressure carbon dioxide simultaneously；
2. under single super-pressure nitrogen input state, the input of super-pressure nitrogen is switched into the input of super-pressure carbon dioxide
When, the setting value that carbon dioxide teletransmission pressure controller control pressure regulating valve is closed is lower than super-pressure nitrogen pressure table detected value
0.2Mpa, while open super-pressure carbon dioxide battery limit (BL) hand valve；
3. simultaneously under super-pressure nitrogen and super-pressure carbon dioxide input state, when the input of super-pressure carbon dioxide is interrupted,
Super-pressure nitrogen pressure table serials control carbon dioxide teletransmission pressure controller, carbon dioxide teletransmission pressure controller control pressure
Regulating valve is gradually opened, and the setting value that carbon dioxide teletransmission pressure controller control pressure regulating valve stops continuing to increase aperture is
The super-pressure nitrogen teletransmission pressure value of super-pressure nitrogen pressure table detection subtracts 0.2Mpa；
4. simultaneously under super-pressure nitrogen and super-pressure carbon dioxide input state, the input of super-pressure carbon dioxide is switched to
When super-pressure nitrogen inputs, the setting value that carbon dioxide teletransmission pressure controller control pressure regulating valve is opened is than super-pressure nitrogen
The low 0.2Mpa of pressure gauge detected value, tight shutoff switch valve are opened, and super-pressure carbon dioxide battery limit (BL) hand valve progressively closes off.
The beneficial effects of the present invention are：
1. realizing super-pressure nitrogen with interconnected the thorough of pipeline of super-pressure carbon dioxide to isolate, carbon dioxide is prevented
Scurry into nitrogen, trigger problems with to occur：Burner nozzle cooling water system pipe leakage, the leakage of coal burner head, device circulating air
Compressor dry gas seals are damaged, and oxygen pipeline is caused danger when purging, and generation calcium carbonate causes equipment and pipe during dreg-locking hopper pressurising
Road fouling, the corrosion of ceramic filter blowback quck-opening valve internals trigger failure；
2. realize that super-pressure nitrogen switches to super-pressure carbon dioxide, super-pressure carbon dioxide switches to super-pressure nitrogen mistake
Journey it is steady；
3. being interrupted suddenly in emergency circumstances in super-pressure carbon dioxide, realize that the automatic of super-pressure nitrogen quickly introduces two
In carbonoxide system, artificial intervention is not during which needed.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
In figure：1- super-pressure nitrogen, 2- super-pressure carbon dioxide, 3- recycle gas compressors do dry gas seals, 4- oxygen pipelines
Purging, 5- dreg-locking hopper pressurisings, 6- burner cooling water buffer tank voltage stabilizings, 7- ceramic filter back-flushing valves do power gas, the other nitrogen of 8-
Gas user, 9- high-pressure carbon dioxide users, 10- super-pressure carbon dioxide users, 11- super-pressure nitrogen heaters, 12- super-pressure
Nitrogen buffer tank, 13- super-pressure CO2 heaters, 14- super-pressure carbon dioxide buffer tanks, 15- super-pressure nitrogen is with surpassing
High-pressure carbon dioxide connects hand valve, 16- super-pressure nitrogen valves, 17- high pressure nitrogen pressure-control valves, 18- high-pressure carbon dioxides
Pressure-control valve, 19- super-pressure carbon dioxide battery limit (BL) hand valve, 20- super-pressure nitrogen pressure tables, 21- carbon dioxide teletransmission pressure
Controller, 22- pressure-regulating valves, 23- tight shutoff switch valves.
Embodiment
Be described further below technical scheme, but claimed scope be not limited to it is described.
A kind of reinforcement medium isolation as shown in Figure 1 and quick switching structure, including super-pressure nitrogen and super-pressure dioxy
Change carbon connection hand valve 15, carbon dioxide teletransmission pressure controller 21, pressure-regulating valve 22, tight shutoff switch valve 23；It is described super
High pressure nitrogen connects hand valve 15, pressure-regulating valve 22 with super-pressure carbon dioxide, pipeline is connected tight shutoff switch valve 23 successively,
The end of tight shutoff switch valve 23 connects super-pressure nitrogen system, and super-pressure nitrogen connects the end of hand valve 15 company with super-pressure carbon dioxide
Connect super-pressure carbon dioxide system；Institute's pressure-regulating valve 22 is stated connects control, dioxy by carbon dioxide teletransmission pressure controller 21
The pressure sensitive end pipe road of change carbon teletransmission pressure controller 21 is connected to super-pressure nitrogen and connects hand valve 15 with super-pressure carbon dioxide
In being connected with the pipeline of super-pressure carbon dioxide system.
The super-pressure nitrogen system is connected by the pipeline of tight shutoff switch valve 23 to be begun, and pipeline is connected with super-pressure successively
Nitrogen valve 16, super-pressure nitrogen heater 11, super-pressure nitrogen buffer tank 12, high pressure nitrogen pressure-control valve 17, and by height
The pipeline of pressure nitrogen pressure control valve 17 is connected to downstream high pressure nitrogen user；In super-pressure nitrogen heater 11 and super-pressure nitrogen
In the pipeline connection of surge tank 12, super-pressure nitrogen pressure table 20 is provided with；The intake line of super-pressure nitrogen 1 accesses to closely
In pipeline connection between roof-cut resistence valve 23 and super-pressure nitrogen valve 16.
The pipeline that the super-pressure carbon dioxide system is connected hand valve 15 by super-pressure nitrogen with super-pressure carbon dioxide connects
The beginning is connect, pipeline is connected with super-pressure CO2 heater 13, super-pressure carbon dioxide buffer tank 14, high-pressure carbon dioxide successively
Pressure-control valve 18, high-pressure carbon dioxide user 9；In super-pressure CO2 heater 13 and super-pressure carbon dioxide buffer tank
In 14 pipeline connection, the outlet of super-pressure CO2 heater 13 is additionally coupled to super-pressure carbon dioxide user 10；In superelevation
Pressure nitrogen is connected with super-pressure carbon dioxide in the pipeline connection between hand valve 15 and super-pressure CO2 heater 13, in two
The connection rear end of carbonoxide teletransmission pressure controller 21, there is super-pressure carbon dioxide 2 via super-pressure carbon dioxide battery limit (BL) hand valve
19 pipelines access.
The downstream high pressure nitrogen user does dry gas seals 3, oxygen pipeline purging 4, dreg-locking hopper including recycle gas compressor and filled
Pressure 5, burner cooling water buffer tank voltage stabilizing 6, ceramic filter back-flushing valve do any one in power gas 7, other nitrogen users 8 or
It is multiple.
The carbon dioxide teletransmission pressure controller 21, pressure-regulating valve 22, the control mode of tight shutoff switch valve 23
For：
Pressure-regulating valve 22 is opened when 1. single super-pressure nitrogen 1 inputs or super-pressure carbon dioxide 2 inputs, super-pressure
Pressure-regulating valve 22 is closed nitrogen 1 and super-pressure carbon dioxide 2 input simultaneously when；
2. under the single input state of super-pressure nitrogen 1, it is defeated that the input of super-pressure nitrogen 1 is switched into super-pressure carbon dioxide 2
Fashionable, the setting value that the control pressure regulating valve 22 of carbon dioxide teletransmission pressure controller 21 is closed is than super-pressure nitrogen pressure table 20
The low 0.2Mpa of detected value, while open super-pressure carbon dioxide battery limit (BL) hand valve 19；
3. simultaneously under super-pressure nitrogen 1 and the input state of super-pressure carbon dioxide 2, the input of super-pressure carbon dioxide 2 is interrupted
When, the serials control carbon dioxide teletransmission pressure controller 21 of super-pressure nitrogen pressure table 20, carbon dioxide teletransmission pressure controller
21 control pressure regulating valves 22 are gradually opened, and the control pressure regulating valve 22 of carbon dioxide teletransmission pressure controller 21 stops continuing to increase
The setting value for degree of increasing is that the super-pressure nitrogen teletransmission pressure value that super-pressure nitrogen pressure table 20 detects subtracts 0.2Mpa；
4. simultaneously under super-pressure nitrogen 1 and the input state of super-pressure carbon dioxide 2, the input of super-pressure carbon dioxide 2 is cut
When being changed to the input of super-pressure nitrogen 1, the setting value ratio of the control pressure regulating valve 22 of carbon dioxide teletransmission pressure controller 21 opening
The low 0.2Mpa of the detected value of super-pressure nitrogen pressure table 20, tight shutoff switch valve 23 are opened, super-pressure carbon dioxide battery limit (BL) hand valve
19 progressively close off.
Generally, the running that controls of the invention is：
1. in device normal course of operation, super-pressure carbon dioxide enters carbon dioxide system, super-pressure carbon dioxide exists
In the case of interrupting suddenly, realize that super-pressure nitrogen is switched fast into being carbon dioxide system automatically.Super-pressure nitrogen teletransmission pressure
Controller serials control carbon dioxide teletransmission pressure controller, super-pressure nitrogen teletransmission pressure value subtract 0.2Mpa as carbon dioxide
The set-point of teletransmission pressure controller, the aperture of carbon dioxide teletransmission pressure controller control pressure regulating valve, switch valve are being pressed
Force regulating valve aperture automatically opens up after reaching certain value (such as 3%)；
2. in device startup procedure, super-pressure carbon dioxide is introduced into system, super-pressure nitrogen substitutes super-pressure titanium dioxide
Carbon, during super-pressure nitrogen is switched into super-pressure carbon dioxide, carbon dioxide teletransmission pressure controller is thrown to automatic, control
Device setting value processed is lower 0.2Mpa than super-pressure nitrogen pressure, live carbon dioxide battery limit (BL) hand valve is slowly opened, after the completion of to be switched
Coupling cock valve is closed in middle control, realizes that super-pressure nitrogen switches to super-pressure carbon dioxide process steady；
3. switched to by super-pressure carbon dioxide in super-pressure nitrogen procedure, super-pressure carbon dioxide teletransmission pressure controller
Setting value is lower 0.2Mpa than super-pressure nitrogen pressure, and middle console keyboard drives newly-increased tight shutoff switch valve, and scene progressively closes off super-pressure
Carbon dioxide hand valve, realize that super-pressure carbon dioxide switches to super-pressure nitrogen procedure steady.
Claims (5)
1. one kind strengthens medium isolation and quick switching structure, including super-pressure nitrogen connects hand valve with super-pressure carbon dioxide
(15), carbon dioxide teletransmission pressure controller (21), pressure-regulating valve (22), tight shutoff switch valve (23), it is characterised in that：
The super-pressure nitrogen connects hand valve (15), pressure-regulating valve (22), tight shutoff switch valve (23) with super-pressure carbon dioxide
Pipeline connects successively, tight shutoff switch valve (23) end connection super-pressure nitrogen system, super-pressure nitrogen and super-pressure titanium dioxide
Carbon connection hand valve (15) end connection super-pressure carbon dioxide system；The pressure-regulating valve (22) is by carbon dioxide teletransmission pressure control
Device (21) connection control processed, carbon dioxide teletransmission pressure controller (21) pressure sensitive end pipe road connection super-pressure carbon dioxide system
In the pipeline connection of system.
2. strengthen medium isolation and quick switching structure as claimed in claim 1, it is characterised in that：The super-pressure nitrogen system
System is connected by the pipeline of tight shutoff switch valve (23) to be begun, and pipeline is connected with super-pressure nitrogen valve (16), super-pressure nitrogen successively
Hot-air heater (11), super-pressure nitrogen buffer tank (12), high pressure nitrogen pressure-control valve (17), and by high pressure nitrogen Stress control
Valve (17) pipeline is connected to downstream high pressure nitrogen user；In super-pressure nitrogen heater (11) and super-pressure nitrogen buffer tank (12)
Pipeline connection in, be provided with super-pressure nitrogen pressure table (20)；The intake line of super-pressure nitrogen (1) accesses to tight shutoff
In pipeline connection between switch valve (23) and super-pressure nitrogen valve (16).
3. strengthen medium isolation and quick switching structure as claimed in claim 1, it is characterised in that：The super-pressure titanium dioxide
The pipeline that carbon system is connected hand valve (15) by super-pressure nitrogen with super-pressure carbon dioxide is connected the beginning, and pipeline is connected with superelevation successively
Press CO2 heater (13), super-pressure carbon dioxide buffer tank (14), high-pressure carbon dioxide pressure-control valve (18), high pressure
Carbon dioxide user (9)；Connect in the pipeline of super-pressure CO2 heater (13) and super-pressure carbon dioxide buffer tank (14)
In connecing, super-pressure CO2 heater (13) outlet is additionally coupled to super-pressure carbon dioxide user (10)；In super-pressure nitrogen
During pipeline between super-pressure carbon dioxide connection hand valve (15) and super-pressure CO2 heater (13) is connected, in dioxy
Change the connection rear end of carbon teletransmission pressure controller (21), have super-pressure carbon dioxide (2) via super-pressure carbon dioxide battery limit (BL) hand
Valve (19) pipeline accesses.
4. strengthen medium isolation and quick switching structure as claimed in claim 2, it is characterised in that：The downstream high pressure nitrogen
User does dry gas seals (3), oxygen pipeline purging (4), dreg-locking hopper pressurising (5), burner cooling water buffer including recycle gas compressor
Tank voltage stabilizing (6), ceramic filter back-flushing valve are any one or more in power gas (7), other nitrogen users (8).
5. strengthen medium isolation and quick switching structure as claimed in claim 1, it is characterised in that：The carbon dioxide teletransmission
Pressure controller (21), pressure-regulating valve (22), the control mode of tight shutoff switch valve (23) are：
Pressure-regulating valve (22) is opened when 1. single super-pressure nitrogen (1) input or super-pressure carbon dioxide (2) input, superelevation
Pressure-regulating valve (22) is closed when pressing nitrogen (1) and super-pressure carbon dioxide (2) while inputting；
2. under single super-pressure nitrogen (1) input state, super-pressure nitrogen (1) input is switched into super-pressure carbon dioxide (2)
During input, the setting value that carbon dioxide teletransmission pressure controller (21) control pressure regulating valve (22) is closed is than super-pressure nitrogen pressure
The low 0.2Mpa of power table (20) detected value, while open super-pressure carbon dioxide battery limit (BL) hand valve (19)；
3. simultaneously under super-pressure nitrogen (1) and super-pressure carbon dioxide (2) input state, in super-pressure carbon dioxide (2) input
When disconnected, super-pressure nitrogen pressure table (20) serials control carbon dioxide teletransmission pressure controller (21), carbon dioxide teletransmission pressure
Controller (21) control pressure regulating valve (22) is gradually opened, carbon dioxide teletransmission pressure controller (21) control pressure regulating valve
(22) setting value for stopping continuing to increase aperture is the super-pressure nitrogen teletransmission pressure value of super-pressure nitrogen pressure table (20) detection
Subtract 0.2Mpa；
4. super-pressure carbon dioxide (2) is inputted under super-pressure nitrogen (1) and super-pressure carbon dioxide (2) input state simultaneously
When switching to super-pressure nitrogen (1) input, what carbon dioxide teletransmission pressure controller (21) control pressure regulating valve (22) was opened
Setting value is lower 0.2Mpa than super-pressure nitrogen pressure table (20) detected value, and tight shutoff switch valve (23) is opened, super-pressure dioxy
Change carbon battery limit (BL) hand valve (19) to progressively close off.
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| CN201510966993.2A CN105419875B (en) | 2015-12-21 | 2015-12-21 | One kind strengthens medium isolation and quick switching structure |
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|---|---|---|---|
| CN201510966993.2A CN105419875B (en) | 2015-12-21 | 2015-12-21 | One kind strengthens medium isolation and quick switching structure |
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| CN105419875A CN105419875A (en) | 2016-03-23 |
| CN105419875B true CN105419875B (en) | 2018-02-16 |
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| CN106641718A (en) * | 2017-01-17 | 2017-05-10 | 孔祥旭 | Partial-pressure nitrogen transporting system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008125556A1 (en) * | 2007-04-11 | 2008-10-23 | Shell Internationale Research Maatschappij B.V. | Process for operating a partial oxidation process of a solid carbonaceous feed |
| US20110277385A1 (en) * | 2010-05-17 | 2011-11-17 | General Electric Company | System and method for conveying a solid fuel in a carrier gas |
| CN205223132U (en) * | 2015-12-21 | 2016-05-11 | 贵州天福化工有限责任公司 | It keeps apart and fast switch over structure to strengthen medium |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008125556A1 (en) * | 2007-04-11 | 2008-10-23 | Shell Internationale Research Maatschappij B.V. | Process for operating a partial oxidation process of a solid carbonaceous feed |
| US20110277385A1 (en) * | 2010-05-17 | 2011-11-17 | General Electric Company | System and method for conveying a solid fuel in a carrier gas |
| CN205223132U (en) * | 2015-12-21 | 2016-05-11 | 贵州天福化工有限责任公司 | It keeps apart and fast switch over structure to strengthen medium |
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| CN105419875A (en) | 2016-03-23 |
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