CN204607916U - A kind of coke oven coke oven uprising tube crude-gas sensible heat reclaims automatic control system - Google Patents
A kind of coke oven coke oven uprising tube crude-gas sensible heat reclaims automatic control system Download PDFInfo
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- CN204607916U CN204607916U CN201520108485.6U CN201520108485U CN204607916U CN 204607916 U CN204607916 U CN 204607916U CN 201520108485 U CN201520108485 U CN 201520108485U CN 204607916 U CN204607916 U CN 204607916U
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- coke oven
- control system
- uprising tube
- heat exchanger
- drum
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The utility model relates to a kind of waste heat recycling system, relate to a kind of coke oven coke oven uprising tube crude-gas sensible heat and reclaim automatic control system, comprise coke oven coke oven uprising tube heat exchanger group, pump circulation Controlling System and drum automatic operation control system, also comprise temperature controlling system, coke oven coke oven uprising tube heat exchanger inlet valve controlled system with self-regulation, and PLC general control system, the water-in of heat exchanger package passes through inlet regulating valve door according to the temperature detection of heat exchanger exit raw gas and setting, automatically the size of flooding velocity is regulated according to the change of temperature out, ensure that the control of heat transfer effect and eliminating flue-gas temperature, safety, reliably reclaim ascending tube crude-gas sensible heat, in cyclically heat transferring medium can being converted into again, low-pressure steam and superheated vapour, abundant recycling ascending tube crude-gas sensible heat, can also effectively run by detecting and controlling system simultaneously, particularly upcast gets rid of the temperature control of flue gas, guarantee that security of system is normally run, reduce accident rate.
Description
Technical field
The utility model relates to a kind of waste heat recycling system, more particularly, relates to a kind of coke oven coke oven uprising tube crude-gas sensible heat and reclaims automatic control system.
Background technology
The high efficiente callback of the residual heat resources produced in coke making process flow process utilizes, and is to set up the energy-conservation Main way in resources conservation, eco-friendly green coke-oven plant, is also one of main path reducing coke oven energy consumption.
But, China to the excavation of secondary energy quality potentiality, the exploitation of value and low-quality residual heat and energy utilize support technology and equipment delayed, in upcast, the waste heat of high temperature coke oven raw gas just fails effectively to utilize always, with cyclic ammonia water cooling, heat can only be wasted.Just start to research and develop technique since the seventies in last century, do not have substantial progress always.Someone is by the processing medium water heat exchange in raw gas and chuck, but occurs heat-transfer surface bonding tar, floss blockage problem, and after heat-transfer surface damages, in chuck, processing medium water leaks and affects coke production into carbonizing chamber.Coal oven dithio-gas sensible heat accounts for about 37% of the heat expenditure of whole coke oven, and temperature, more than 750 degree, does not have the recycle device of mature and reliable to put into operation so far.Due to the singularity of coke oven operation in operational process, to coke pushing from coal, in whole process, the temperature of raw gas and flow are at any time all in change, the recovery scheme that early stage, we released just is confined to Non-follow control and runs, flooding velocity cannot be regulated according to the temperature variation of raw gas, considerable influence is brought to the fluctuation of whole recovery system.
Utility model content
The purpose of this utility model is that overcoming existing collecting of coke oven coke oven uprising tube crude-gas sensible heat recovery system heat exchange energy causes the exit gas temperature range of decrease excessive and cause easy coking and blocking, larger to external environment influence, and in startup and stopped process, undesirable deficiency is used for the process of the high temperature of material and interchanger, a kind of coke oven coke oven uprising tube crude-gas sensible heat is provided to reclaim automatic control system, adopt the technical scheme that the utility model provides, both ensure that the control of heat transfer effect and eliminating flue-gas temperature, effectively, safety, reliably reclaim ascending tube crude-gas sensible heat, in cyclically heat transferring medium can being converted into again, low-pressure steam and superheated vapour, abundant recycling ascending tube crude-gas sensible heat, can also effectively run by detecting and controlling system simultaneously, particularly upcast gets rid of the temperature control of flue gas, guarantee that security of system is normally run, reduce accident rate.
The technical scheme realizing the utility model object is as follows:
A kind of coke oven coke oven uprising tube crude-gas sensible heat reclaims automatic control system, comprise coke oven coke oven uprising tube heat exchanger group, pump circulation Controlling System and drum automatic operation control system, also comprise temperature controlling system, coke oven coke oven uprising tube heat exchanger inlet valve controlled system with self-regulation, and PLC general control system;
Described temperature controlling system comprises the electric contact temp gauge hatch being positioned at coke oven coke oven uprising tube heat exchanger discharge flange place, electric contact temp gauge hatch connects electric contact thermometer, and the temperature signal of electric contact thermometer is transferred to PLC general control system by temperature controlling system;
Described coke oven coke oven uprising tube heat exchanger inlet valve varitrol comprises inlet regulating valve door, coke oven coke oven uprising tube heat exchanger inlet valve varitrol is connected with PLC general control system, manually-operated gate and bypass valve is cut off before and after also comprising, described inlet regulating valve door, front and back cut off manually-operated gate and are connected with the suction culvert of bypass valve with coke oven coke oven uprising tube heat exchanger.
Further, described coke oven coke oven uprising tube heat exchanger group at least has two coke oven coke oven uprising tube heat exchangers, remittance pump circulation Controlling System parallel with one another between the inlet regulating valve door of single coke oven coke oven uprising tube heat exchanger.
Further, described pump circulation automatic control and adjustment system comprises 2 forced circulation pumps and terminal valve, and forced circulation pump adopts variable-frequency motor, also comprises the female pipe of outlet and installs female flowmeter for pipe.
Further, described drum automatic operation control system comprises a drum, two drum intake pumps, inlet regulating valve door, liquid level of steam drum meter, feed water flow gauge, vapour outlet under meters, and described feed water flow gauge and inlet regulating valve door are arranged between intake pump and drum.
Further, described drum automatic operation control system also comprises tensimeter and pressure unit, and described tensimeter is connected with drum with pressure unit.
Further, described under meter is arranged between drum and deoxygenation water tank.
After adopting said structure, the beneficial effects of the utility model are:
(1) a kind of coke oven coke oven uprising tube crude-gas sensible heat of the present utility model reclaims automatic control system, comprise coke oven coke oven uprising tube heat exchanger group, pump circulation Controlling System and drum automatic operation control system, also comprise temperature controlling system, coke oven coke oven uprising tube heat exchanger inlet valve controlled system with self-regulation, and PLC general control system, can ensure coke oven for a long time, continuous seepage safely and steadly, thus recycle the sensible heat of coke oven coke oven uprising tube raw gas continuously and stably;
(2) a kind of coke oven coke oven uprising tube crude-gas sensible heat of the present utility model reclaims automatic control system, the water-in of its heat exchanger package passes through inlet regulating valve door according to the temperature detection of heat exchanger exit raw gas and setting, automatically the size of flooding velocity is regulated according to the change of temperature out, make use of the waste heat of the raw gas of upcast so to greatest extent, ensure when there is a large amount of raw gas, temperature out is not less than 450 DEG C, control the absorption of tar and the growth of graphite, because As time goes on the temperature of raw gas and flow are constantly changing, adopt this automatic control system, more thorough farthest by the thermal exchange of raw gas, the safety in production being conducive to upcast runs, also ensure that can the output steam of continous-stable simultaneously,
(3) a kind of coke oven coke oven uprising tube crude-gas sensible heat of the present utility model reclaims automatic control system, its pump circulation automatic control system, by the mensuration of the forced circulation pump rate of discharge of setting, regulate the frequency of the variable-frequency motor of forced circulation pump at any time, ensure that the flow of all upcast interchanger is relatively stable on the one hand, on the other hand have also been obtained effective control self of system is energy-conservation, control together to use with the temperature of upcast and flooding velocity, effect is better.
Accompanying drawing explanation
Fig. 1 is electronic schematic diagram of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
A kind of coke oven coke oven uprising tube crude-gas sensible heat reclaims automatic control system, comprise coke oven coke oven uprising tube heat exchanger group, pump circulation Controlling System and drum automatic operation control system, also comprise temperature controlling system, coke oven coke oven uprising tube heat exchanger inlet valve controlled system with self-regulation, and PLC general control system;
Described temperature controlling system comprises the electric contact temp gauge hatch 2 being positioned at coke oven coke oven uprising tube heat exchanger 1 discharge flange place, electric contact temp gauge hatch 2 connects electric contact thermometer, and the temperature signal of electric contact thermometer is transferred to PLC general control system by temperature controlling system;
Described coke oven coke oven uprising tube heat exchanger inlet valve varitrol comprises inlet regulating valve door 3, coke oven coke oven uprising tube heat exchanger inlet valve varitrol is connected with PLC general control system, manually-operated gate and bypass valve is cut off before and after also comprising, described inlet regulating valve door, front and back cut off manually-operated gate and are connected with the suction culvert 4 of coke oven coke oven uprising tube heat exchanger with bypass valve.
The electric contact thermometer of described heat exchanger of riser of coke oven outlet measures upcast heat exchanger exit raw gas temperature, and this temperature signal is sent to PLC general control system, inlet regulating valve door is connected with PLC general control system by transmission route, automatically regulate the inlet valve aperture of heat exchanger of riser of coke oven by gathering heat exchanger of riser of coke oven outlet raw gas temperature variable signal thus regulate flooding velocity, ensure that the outlet raw gas temperature of upcast interchanger after heat exchange runs at the reasonable interval (being not less than 450 DEG C) arranged, control the inner absorption of tar of upcast and the growth of graphite to greatest extent.
Described coke oven coke oven uprising tube heat exchanger group at least has two coke oven coke oven uprising tube heat exchangers, remittance pump circulation Controlling System parallel with one another between the inlet regulating valve door of single coke oven coke oven uprising tube heat exchanger.Specifically, described upcast heat exchanger package comprises several upcast interchanger, each upcast heat exchanger exit place is provided with electric contact temp gauge hatch and electric contact thermometer, described heat exchanger of riser of coke oven imports female pipe respectively by independent inlet regulating valve door pipeline rear grouping parallel with one another, thus composition one group system.
Described pump circulation automatic control and adjustment system comprises 2 forced circulation pumps 5 and terminal valve 6, forced circulation pump adopts variable-frequency motor, by setting and the control of the overall flow of PLC general control system, the frequency of the variable-frequency motor of automatic adjustment forced circulation pump, thus reach the object of adjust flux, also comprise the female pipe of outlet and install female flowmeter for pipe 7, described female pipe flow 7 is between forced circulation pump and heat exchanger package, for measuring the uninterrupted of pump circulation water pump, and this uninterrupted is sent to PLC general control system, by the frequency of PLC general control system instruction control variable-frequency motor.
Described drum automatic operation control system comprises a drum 8, two drum intake pumps 9, inlet regulating valve door 10, liquid level of steam drum meter 11, feed water flow gauge 12, vapour outlet under meters 13, and described feed water flow gauge and inlet regulating valve door are arranged between intake pump and drum.Drum self water feeding adopts the Regulative system of three impulses feedwater, and master signal is liquid level of steam drum signal H, and feed-forward signal is main steam flow signal D, and feedback signal is feedwater flow signal W, thus reaches the steady running of drum.
Described drum automatic operation control system also comprises tensimeter and pressure unit, and described tensimeter is connected with drum with pressure unit, for measuring the saturated vapour pressure in drum.
Described under meter is arranged between drum and deoxygenation water tank, for the uninterrupted of Survey control drum intake pump.
The utility model is not limited to described embodiment; those skilled in the art is not departing from spirit of the present utility model namely openly in scope; still can do some revise or change, therefore the scope that rights protection scope of the present utility model limits with claims is as the criterion.
Claims (6)
1. a coke oven coke oven uprising tube crude-gas sensible heat reclaims automatic control system, comprise coke oven coke oven uprising tube heat exchanger group, pump circulation Controlling System and drum automatic operation control system, it is characterized in that, also comprise temperature controlling system, coke oven coke oven uprising tube heat exchanger inlet valve controlled system with self-regulation, and PLC general control system;
Described temperature controlling system comprises the electric contact temp gauge hatch being positioned at coke oven coke oven uprising tube heat exchanger discharge flange place, electric contact temp gauge hatch connects electric contact thermometer, and the temperature signal of electric contact thermometer is transferred to PLC general control system by temperature controlling system;
Described coke oven coke oven uprising tube heat exchanger inlet valve varitrol comprises inlet regulating valve door, coke oven coke oven uprising tube heat exchanger inlet valve varitrol is connected with PLC general control system, manually-operated gate and bypass valve is cut off before and after also comprising, described inlet regulating valve door, front and back cut off manually-operated gate and are connected with the suction culvert of bypass valve with coke oven coke oven uprising tube heat exchanger.
2. a kind of coke oven coke oven uprising tube crude-gas sensible heat according to claim 1 reclaims automatic control system, it is characterized in that, described coke oven coke oven uprising tube heat exchanger group at least has two coke oven coke oven uprising tube heat exchangers, remittance pump circulation Controlling System parallel with one another between the inlet regulating valve door of single coke oven coke oven uprising tube heat exchanger.
3. a kind of coke oven coke oven uprising tube crude-gas sensible heat according to claim 1 reclaims automatic control system, it is characterized in that, described pump circulation automatic control and adjustment system comprises 2 forced circulation pumps and terminal valve, forced circulation pump adopts variable-frequency motor, also comprises the female pipe of outlet and installs female flowmeter for pipe.
4. a kind of coke oven coke oven uprising tube crude-gas sensible heat according to claim 1 reclaims automatic control system, it is characterized in that, described drum automatic operation control system comprises a drum, two drum intake pumps, inlet regulating valve door, liquid level of steam drum meter, feed water flow gauge, vapour outlet under meters, and described feed water flow gauge and inlet regulating valve door are arranged between intake pump and drum.
5. a kind of coke oven coke oven uprising tube crude-gas sensible heat according to claim 1 reclaims automatic control system, it is characterized in that, described drum automatic operation control system also comprises tensimeter and pressure unit, and described tensimeter is connected with drum with pressure unit.
6. a kind of coke oven coke oven uprising tube crude-gas sensible heat according to claim 4 reclaims automatic control system, and it is characterized in that, described under meter is arranged between drum and deoxygenation water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520108485.6U CN204607916U (en) | 2015-02-13 | 2015-02-13 | A kind of coke oven coke oven uprising tube crude-gas sensible heat reclaims automatic control system |
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| CN201520108485.6U CN204607916U (en) | 2015-02-13 | 2015-02-13 | A kind of coke oven coke oven uprising tube crude-gas sensible heat reclaims automatic control system |
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| CN204607916U true CN204607916U (en) | 2015-09-02 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104710993A (en) * | 2015-02-13 | 2015-06-17 | 常州江南冶金科技有限公司 | Automatic control system for coke oven ascension pipe raw gas sensible heat recovery |
| CN105255503A (en) * | 2015-09-30 | 2016-01-20 | 上海宝钢节能环保技术有限公司 | Coke oven crude gas sensible heat recycling system |
| CN110157454A (en) * | 2019-06-24 | 2019-08-23 | 上海宝钢节能环保技术有限公司 | A kind of passive hand automatic control device of heat exchanger of riser of coke oven |
-
2015
- 2015-02-13 CN CN201520108485.6U patent/CN204607916U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104710993A (en) * | 2015-02-13 | 2015-06-17 | 常州江南冶金科技有限公司 | Automatic control system for coke oven ascension pipe raw gas sensible heat recovery |
| CN105255503A (en) * | 2015-09-30 | 2016-01-20 | 上海宝钢节能环保技术有限公司 | Coke oven crude gas sensible heat recycling system |
| CN110157454A (en) * | 2019-06-24 | 2019-08-23 | 上海宝钢节能环保技术有限公司 | A kind of passive hand automatic control device of heat exchanger of riser of coke oven |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20181026 Address after: 213000 No. 99 Hanjiang West Road, Xinbei District, Changzhou, Jiangsu Patentee after: The metallurgical Science and Technology Ltd. in the south of the River, Changzhou Address before: 213000 No. 99 Hanjiang West Road, Xinbei District, Changzhou, Jiangsu Co-patentee before: Han Pei Patentee before: The metallurgical Science and Technology Ltd. in the south of the River, Changzhou |