CN203442809U - Automatic control device for membrane oxygen-enriched combustion supporting system of circulating fluidized bed boiler - Google Patents
Automatic control device for membrane oxygen-enriched combustion supporting system of circulating fluidized bed boiler Download PDFInfo
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- CN203442809U CN203442809U CN201320512647.3U CN201320512647U CN203442809U CN 203442809 U CN203442809 U CN 203442809U CN 201320512647 U CN201320512647 U CN 201320512647U CN 203442809 U CN203442809 U CN 203442809U
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- oxygen
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- vavuum pump
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Regulation And Control Of Combustion (AREA)
Abstract
The utility model discloses an automatic control device for a membrane oxygen-enriched combustion supporting system of a circulating fluidized bed boiler, and belongs to the technical field of the membrane oxygen-enriched combustion supporting system. The automatic control device comprises a ventilator, a membrane oxygen-enrichment generator, a vacuum pump, an air-water separator, a booster fan and an oxygen-enrichment nozzle, wherein a blow-off pipeline of the membrane oxygen-enrichment generator is provided with a normally-open solenoid valve, an electric butterfly valve is arranged on an oxygen-enrichment pipeline of the membrane oxygen-enrichment generator, a Y-shaped filter is arranged on a water inlet pipeline of the vacuum pump, a first normally-closed solenoid valve is arranged on the water inlet pipeline between the vacuum pump and the Y-shaped filter, and a second normally-closed solenoid valve is arranged on a drain pipe of the air-water separator; and all of a motor of the ventilator, the normally-open solenoid valve, the electric butterfly valve, a motor of the Y-shaped filter, the first normally-closed solenoid valve, a motor of the vacuum pump, the second normally-closed solenoid valve and a motor of the booster fan can be electrically connected with an output end of a programmable logic controller. According to the automatic control device, the operation of the membrane oxygen-enriched combustion supporting system is controlled automatically, and the automatic control device is accurate in control and convenient to use.
Description
Technical field
The utility model belongs to film oxygen-rich combustion-supporting system technical field, relates in particular to a kind of automaton for CFBB film oxygen-rich combustion-supporting system.
Background technology
CFBB is to grow up on the basis of bubbling bed boiler.CFBB not only fuel tolerance is wide, and Air-pollution From Combustion discharge capacity is low.Although the efficiency of combustion of CFBB is up to more than 85%, but still some fuel cannot fully burn.In order to improve the efficiency of combustion of recirculating fluidized bed, conventionally on CFBB, set up oxygen-rich combustion-supporting system.
The preparation method of oxygen enrichment mainly contains Deep Cooling Method, pressure swing adsorption method (PSA method) and embrane method, because embrane method equipment is simple, easy to operate, low, free from environmental pollution, the scale of fast, the small investment of steady quality and safety, starting, energy consumption can the medium advantage of I, in the application of preparing aspect oxygen enrichment, increase rapidly, and replacing other isolation technics expensive and inconvenient operation.Membrane oxygen enrichment technology is that the infiltration rate while utilizing each component in air to see through polymeric membrane for separation is different, under pressure differential drives, airborne oxygen concentration is obtained to the technology of oxygen-enriched air.With film oxygen enriching air (oxygen content 26-31%), replace normal air to participate in combustion-supporting, can be significantly energy-conservation.
At present, in film oxygen-rich combustion-supporting system, the opening and closing of ventilation blower, vavuum pump, booster fan and valve etc. are all by controlling manually, in this process, not only easily there is maloperation, cause equipment normally not move, and be difficult for the ruuning situation of whole equipment to supervise, to use, make troubles.
Utility model content
Technical problem to be solved in the utility model is: a kind of automaton for CFBB film oxygen-rich combustion-supporting system is provided, to solve, adopt Artificial Control not only easily to have maloperation, and be difficult for the ruuning situation of whole equipment to supervise the technical problem of making troubles to use.
For solving the problems of the technologies described above, the technical solution of the utility model is: for the automaton of CFBB film oxygen-rich combustion-supporting system, comprise the film oxygen-enriched generator that is provided with air cleaner on admission line, admission line between described air cleaner and described film oxygen-enriched generator is provided with ventilation blower, the blow-off line of described film oxygen-enriched generator is provided with normal-open electromagnetic valve, described film oxygen-enriched generator connects the air inlet of vavuum pump by oxygen enrichment pipeline, described oxygen enrichment pipeline is provided with electric butterfly valve, the inlet channel of described vavuum pump is provided with y-type filter, inlet channel between described vavuum pump and y-type filter is provided with the first normal-closed electromagnetic valve, the gas outlet of described vavuum pump connects the air inlet of moisture trap, the exhaust outlet of described moisture trap connects rich-oxygen nozzle by booster fan, the drainage pipeline of described moisture trap is provided with the second normal-closed electromagnetic valve, the motor of described ventilation blower, normal-open electromagnetic valve, electric butterfly valve, the motor of y-type filter, the first normal-closed electromagnetic valve, the motor of vavuum pump, the motor of the second normal-closed electromagnetic valve and booster fan is all electrically connected to the output of Programmable Logic Controller.
As a kind of improvement, described rich-oxygen nozzle is installed on the secondary air channel of CFBB, on the body of heater of described CFBB, temperature sensor is installed, and described temperature sensor is electrically connected to the input of described Programmable Logic Controller.
As further improvement, the motor of described ventilation blower is variable-frequency motor.
As further improvement, the motor of described vavuum pump is variable-frequency motor.
Adopted after technique scheme, the beneficial effects of the utility model are: due to the motor of described ventilation blower, normal-open electromagnetic valve, electric butterfly valve, the motor of y-type filter, the first normal-closed electromagnetic valve, the motor of vavuum pump, the motor of the second normal-closed electromagnetic valve and booster fan is all electrically connected to the output of Programmable Logic Controller, make the start and stop of ventilation blower, the break-make of the blow-off line of film oxygen-enriched generator, the break-make of the oxygen enrichment pipeline between film oxygen-enriched generator and vavuum pump, the start and stop of the motor of y-type filter, the break-make of the inlet channel of vavuum pump, the start and stop of vavuum pump, the break-make of the drainage pipeline of moisture trap and the start and stop of booster fan have been controlled automatically by Programmable Logic Controller, substituted manually and controlled, not only precise control, and be conducive to the ruuning situation of whole equipment to be supervised, easy to use.
Because the temperature sensor on the body of heater of described CFBB is electrically connected to the input of described Programmable Logic Controller, by temperature sensor, signal is passed to Programmable Logic Controller, data acquisition, thus the ruuning situation of film oxygen-rich combustion-supporting system is controlled.
Because the motor of described ventilation blower is variable-frequency motor, along with the variation of CFBB temperature signal, Programmable Logic Controller issues a signal to the variable-frequency motor of ventilation blower, adjusts the variable-frequency motor rotating speed of ventilation blower, thereby regulates air capacity.
Because the motor of described vavuum pump is variable-frequency motor, along with the variation of CFBB temperature signal, Programmable Logic Controller issues a signal to the variable-frequency motor of vavuum pump, adjusts the variable-frequency motor rotating speed of vavuum pump, thereby regulates the flow of oxygen enrichment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1, air cleaner, 2, film oxygen-enriched generator, 21, normal-open electromagnetic valve, 3, ventilation blower, 4, vavuum pump, the 41, first normal-closed electromagnetic valve, 5, electric butterfly valve, 6, y-type filter, 7, moisture trap, 71, the second normal-closed electromagnetic valve, 8, booster fan, 9, rich-oxygen nozzle, 10, Programmable Logic Controller, 11, CFBB, 12, temperature sensor.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, automaton for CFBB film oxygen-rich combustion-supporting system, comprise the film oxygen-enriched generator 2 that is provided with air cleaner 1 on admission line, admission line between air cleaner 1 and film oxygen-enriched generator 2 is provided with ventilation blower 3, the blow-off line of film oxygen-enriched generator 2 is provided with normal-open electromagnetic valve 21, film oxygen-enriched generator 2 connects the air inlet of vavuum pump 4 by oxygen enrichment pipeline, oxygen enrichment pipeline is provided with electric butterfly valve 5, the inlet channel of vavuum pump 4 is provided with y-type filter 6, inlet channel between vavuum pump 4 and y-type filter 6 is provided with the first normal-closed electromagnetic valve 41, the gas outlet of vavuum pump 4 connects the air inlet of moisture trap 7, the exhaust outlet of moisture trap 7 connects rich-oxygen nozzle 9 by booster fan 8, the drainage pipeline of moisture trap 7 is provided with the second normal-closed electromagnetic valve 71, the motor of ventilation blower 3, normal-open electromagnetic valve 21, electric butterfly valve 5, the motor of y-type filter 6, the first normal-closed electromagnetic valve 41, the motor of vavuum pump 4, the motor of the second normal-closed electromagnetic valve 71 and booster fan 8 is all electrically connected to the output of Programmable Logic Controller 10.
Rich-oxygen nozzle 9 is installed on the secondary air channel of CFBB 11, temperature sensor 12 is installed on the body of heater of CFBB 11, temperature sensor 12 is electrically connected to the input of Programmable Logic Controller 10, by temperature sensor 12, signal is passed to Programmable Logic Controller 10, data acquisition, thus the ruuning situation of film oxygen-rich combustion-supporting system is controlled.
The motor of ventilation blower 3 is variable-frequency motor, and along with the variation of CFBB 11 temperature signals, Programmable Logic Controller 10 issues a signal to the variable-frequency motor of ventilation blower 3, adjusts the variable-frequency motor rotating speed of ventilation blower 3, thereby regulates air capacity.
The motor of vavuum pump 4 is variable-frequency motor, and along with the variation of CFBB 11 temperature signals, Programmable Logic Controller 10 issues a signal to the variable-frequency motor of vavuum pump 4, adjusts the variable-frequency motor rotating speed of vavuum pump 4, thereby regulates the flow of oxygen enrichment.
During work, Programmable Logic Controller 10 sends signal, make the motor of ventilation blower 3, the motor of the motor of vavuum pump 4 and booster fan 8 all turns round, make normal-open electromagnetic valve 21 open simultaneously, electric butterfly valve 5 is opened, the first normal-closed electromagnetic valve 41 is opened, the second normal-closed electromagnetic valve 71 is opened, through air cleaner 1, remove the dust that is greater than 0.5 μ in air, then air is sent into film oxygen-enriched generator 2 by ventilation blower 3 and carry out separation, wherein rich nitrogen is discharged by the blow-off line of film oxygen-enriched generator 2, and oxygen enrichment is removed aqueous water by vavuum pump 4 extractions through moisture trap 7, wherein, aqueous water is discharged by the drainage pipeline of moisture trap 7, again by delivered to the flame kernel of CFBB 11 bodies of heater after booster fan 8 superchargings by rich-oxygen nozzle 9, make fuel in the overheavy firing of body of heater center, improve flame temperature, radiant heat is significantly increased, meanwhile, when reaching the default scavenging period of y-type filter 6, Programmable Logic Controller 10 issues a signal to y-type filter 6, makes the motor rotation of y-type filter 6, and filter core is cleaned.
The automaton for CFBB film oxygen-rich combustion-supporting system that the utility model provides, motor due to ventilation blower 3, normal-open electromagnetic valve 21, electric butterfly valve 5, the motor of y-type filter 6, the first normal-closed electromagnetic valve 41, the motor of vavuum pump 4, the motor of the second normal-closed electromagnetic valve 71 and booster fan 8 is all electrically connected to the output of Programmable Logic Controller 10, make the start and stop of ventilation blower 3, the break-make of the blow-off line of film oxygen-enriched generator 2, the break-make of the oxygen enrichment pipeline between film oxygen-enriched generator 2 and vavuum pump 4, the start and stop of the motor of y-type filter 6, the break-make of the inlet channel of vavuum pump 4, the start and stop of vavuum pump 4, the start and stop of the break-make of the drainage pipeline of moisture trap 7 and booster fan 8 have been controlled automatically by Programmable Logic Controller 10, substituted manually and controlled, not only precise control, and be conducive to the ruuning situation of whole equipment to be supervised, easy to use.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. for the automaton of CFBB film oxygen-rich combustion-supporting system, it is characterized in that, comprise the film oxygen-enriched generator that is provided with air cleaner on admission line, admission line between described air cleaner and described film oxygen-enriched generator is provided with ventilation blower, the blow-off line of described film oxygen-enriched generator is provided with normal-open electromagnetic valve, described film oxygen-enriched generator connects the air inlet of vavuum pump by oxygen enrichment pipeline, described oxygen enrichment pipeline is provided with electric butterfly valve, the inlet channel of described vavuum pump is provided with y-type filter, inlet channel between described vavuum pump and y-type filter is provided with the first normal-closed electromagnetic valve, the gas outlet of described vavuum pump connects the air inlet of moisture trap, the exhaust outlet of described moisture trap connects rich-oxygen nozzle by booster fan, the drainage pipeline of described moisture trap is provided with the second normal-closed electromagnetic valve, the motor of described ventilation blower, normal-open electromagnetic valve, electric butterfly valve, the motor of y-type filter, the first normal-closed electromagnetic valve, the motor of vavuum pump, the motor of the second normal-closed electromagnetic valve and booster fan is all electrically connected to the output of Programmable Logic Controller.
2. the automaton for CFBB film oxygen-rich combustion-supporting system according to claim 1, it is characterized in that, described rich-oxygen nozzle is installed on the secondary air channel of CFBB, on the body of heater of described CFBB, temperature sensor is installed, described temperature sensor is electrically connected to the input of described Programmable Logic Controller.
3. the automaton for CFBB film oxygen-rich combustion-supporting system according to claim 2, is characterized in that, the motor of described ventilation blower is variable-frequency motor.
4. the automaton for CFBB film oxygen-rich combustion-supporting system according to claim 3, the motor of described vavuum pump is variable-frequency motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320512647.3U CN203442809U (en) | 2013-08-21 | 2013-08-21 | Automatic control device for membrane oxygen-enriched combustion supporting system of circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320512647.3U CN203442809U (en) | 2013-08-21 | 2013-08-21 | Automatic control device for membrane oxygen-enriched combustion supporting system of circulating fluidized bed boiler |
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| CN203442809U true CN203442809U (en) | 2014-02-19 |
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| CN201320512647.3U Expired - Lifetime CN203442809U (en) | 2013-08-21 | 2013-08-21 | Automatic control device for membrane oxygen-enriched combustion supporting system of circulating fluidized bed boiler |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103964387A (en) * | 2014-05-12 | 2014-08-06 | 河南嘉和节能科技有限公司 | Controllable low pressure membrane method oxygen enrichment device |
| WO2023041991A1 (en) * | 2021-09-20 | 2023-03-23 | Ceske Vysoke Uceni Technicke V Praze | Method of controlling the temperature of a freeboard section of a combustion chamber in a bubbling fluidized bed boiler combusting biomass and equipment for implementation of this method. |
-
2013
- 2013-08-21 CN CN201320512647.3U patent/CN203442809U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103964387A (en) * | 2014-05-12 | 2014-08-06 | 河南嘉和节能科技有限公司 | Controllable low pressure membrane method oxygen enrichment device |
| WO2023041991A1 (en) * | 2021-09-20 | 2023-03-23 | Ceske Vysoke Uceni Technicke V Praze | Method of controlling the temperature of a freeboard section of a combustion chamber in a bubbling fluidized bed boiler combusting biomass and equipment for implementation of this method. |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Automatic control device for membrane oxygen-enriched combustion supporting system of circulating fluidized bed boiler Effective date of registration: 20180117 Granted publication date: 20140219 Pledgee: Weifang rural commercial bank, Fangzi branch of Limited by Share Ltd. Pledgor: WEIFANG RUNJIE LIGHT INDUSTRY ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Registration number: 2018980000006 |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140219 |