CN203487100U - Coke tower preheating device - Google Patents
Coke tower preheating device Download PDFInfo
- Publication number
- CN203487100U CN203487100U CN201320370168.2U CN201320370168U CN203487100U CN 203487100 U CN203487100 U CN 203487100U CN 201320370168 U CN201320370168 U CN 201320370168U CN 203487100 U CN203487100 U CN 203487100U
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- coke drum
- coke
- heater unit
- primary heater
- heating installation
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Abstract
The utility model relates to a coke tower preheating device, comprising two coke towers, wherein heating apparatuses are respectively arranged on pipelines between rear of four-way valves of the coke towers and circumferential welds of lower cones of the two coke towers and on the lower cones; and jackets are arranged at the outside of the outer walls of the upper parts of the circumferential welds of the lower cones of the two coke towers and are communicated by a circulating pipeline to form a closed loop circulating jacket surrounding the lower parts of the two coke towers. While saving energy and reducing consumption of a delayed coking unit, the coke tower preheating device provided by the utility model stabilizes the material balance and heat balance of the device system, reduces the periodic fluctuation of the device, shortens the preheating time of the coke towers, improves the liquid yield of the device, reduces the coking speed of a heating furnace tube, reduces the gas velocity change and the coke powder carrying amount fluctuation of the system, reduces or avoids deformation of girth sheets on the lower half parts of the coke towers, prolongs the service life of the coke towers, reduces or avoids the formation of splashing oil, saves the energy consumption of a pump and optimizes the process defects of intermittent production of the delayed coking unit in a breakthrough mode.
Description
Technical field
The utility model relates to petrochemical industry Delayed Coking Technology field, is specifically related to a kind of coke drum primary heater unit.
Background technology
The current delayed coking unit of petrochemical industry, the pattern of the preheating of its coke drum is all to open the ball collar valve of new column overhead, at the bottom of the oil gas of producing tower flows to tower from the tower top of new tower, enters and gets rid of oil tank and be preheating to tower wall more than 330 ℃ to new tower.
This method of new tower preheating of giving, because being directly to carry out the new tower of preheating with the oil gas of producing tower, causes the unnecessary loss of heat energy, has increased the coking rate of furnace tubing, and has caused the cyclic fluctuation of device, has increased the difficulty of device stable operation; Because new tower preheating temperature can only be preheating to 330 ℃ of left and right, cut tower initial stage slag oil crack temperature inadequate, liquid is received yield and is declined, and because the gas speed entering due in separation column changes, the coke powder amount of the carrying fluctuation that causes described system is large; Also having the important point, is being under the condition of coke drum high temperature, high burnt position, easily causes the distortion between above first, second and third road girth sheets of coke drum lower cone circumferential weld, has shortened the work-ing life of coke drum.
Utility model content
The utility model object be to overcome the defect of existing Technology and the material balance of a kind of equilibrium system of providing and heat balance, energy-saving and cost-reducing, improve that liquid is received, the operation of optimization device system process, and can extend the coke drum coke drum new preheating device in work-ing life.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A coke drum primary heater unit, comprises two coke drums, after coke drum four-way valve, on the pipeline of two coke drum lower cone circumferential welds and lower cone, heating installation is set respectively.Described heating installation type of heating be electromagnetism, far infrared rays, electrically heated at least one.
Heating installation to the pipeline installing of two coke drum lower cone circumferential welds after coke drum four-way valve is endless tube road heating installation.The heating installation arranging on two coke drum lower cones is ring cone heating equipment.
Described endless tube road heating installation and ring cone heating equipment are integrated form or separate form, are installed on respectively pipeline and lower cone outside.
Tower wall on the lower cone circumferential weld top of two described coke drums is equipped with chuck outward, and is communicated with by circulation line, forms airtight loop, in described chuck and circulation line, is marked with heat-conducting medium.Described chuck, for being at least one, is arranged between the lower cone circumferential weld and the upper edge of the burnt layer of coke drum of coke drum.Described chuck welds together with steel plate and Ta Bi or is surrounded on outside described tower wall with forming metal chuck.Described heating installation and chuck circulation line are provided with liquidometer, thermometer, stopping valve, non-return valve and instrument teletransmission and heating installation Controlling System.
The utility model is by setting up endless tube road heating installation and cone heating equipment on the pipeline in two coke drum lower cones bottoms, by preheat oil in its heating coke drum to coke drum preheating; Tower wall on the lower cone circumferential weld top of two coke drums is equipped with chuck outward and is communicated with by circulation line, thereby realized by two coke drum closed cycle chucks, the production waste heat of producing tower height fire stons oil coke with heat-conducting medium handle is to the preheating of Xin Tata wall, and two cover heating facilities can be given coke drum preheating individually or simultaneously.
The utility model is steady material balance and the heat balance of apparatus system when realizing Energy Conservation of Delayed Coker consumption reduction, has reduced the cyclic swing of device; Shortened coke drum warm up time, improved the liquid of device and receive, reduced the coking rate of furnace tubing, the gas speed that has reduced system changes and the fluctuation of the coke powder amount of carrying, and reduces or avoided the distortion of coke drum Lower Half girth sheets, prolongation coke drum work-ing life; Reduce or avoided getting rid of oil (oil of the new tower of preheating) forming, saved electricity (steam) consumption of pump, reduced manual operation, reduced the generation of system sump oil, the technique drawback of delayed coking unit batch production is able to breakthrough optimization.
Accompanying drawing explanation
A kind of coke drum primary heater unit preheating facility schematic diagram that the embodiment of the utility model shown in Fig. 1 provides;
A kind of coke drum primary heater unit pipeline preheating facility schematic diagram that the embodiment of the utility model shown in Fig. 2 provides;
The master of the pre-thermal jacket of a kind of delayed coking coke drum that the embodiment of the utility model shown in Fig. 3 provides looks schematic diagram;
The schematic top plan view of the pre-thermal jacket of a kind of delayed coking coke drum that the embodiment of the utility model shown in Fig. 4 provides.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, 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 Figure 1-4, a kind of coke drum primary heater unit, is included in after coke drum four-way valve on the pipeline of two coke drum lower cone circumferential welds and lower cone and sets up endless tube road heating installation 1 and ring cone heating equipment 2; Tower wall on two coke drum lower cone circumferential weld tops is equipped with metal chuck outward and is communicated with by circulation line, in described chuck and circulation line, is marked with heat-conducting medium, and attached liquidometer 3, thermometer 4, heating installation Controlling System.Endless tube road and ring cone heating equipment can be arranged on after described coke drum four-way valve the local of the pipeline of two coke drum lower cone circumferential welds and lower cone or all.Between production tower described in described chuck is located at and new tower lower cone circumferential weld and the upper edge of the burnt layer of coke drum.
As shown in Figure 2, as an embodiment, at described endless tube road heating installation 1 and ring cone heating equipment 2 its installation forms, can be integral form, can be also separate form is installed on pipeline and cone is outside.Described endless tube road heating installation 1 and ring cone heating equipment 2 are provided with liquidometer 3, thermometer 4.Described endless tube road heating installation 1 and ring cone heating equipment 2 its type of heating are at least one external heating mode of electromagnetism, far infrared rays, electrically heated, and its maximum heating temperature is no more than equipment allowable temperature.Described endless tube road heating installation 1 and ring cone heating equipment 2 its installation forms can be integral forms, can be also that separate form is installed on pipeline and lower cone is outside.
As shown in Figure 3, as an embodiment, outside the tower wall of described coke drum A tower and B tower, be provided with three chucks, be located at respectively described production tower and new tower lower cone circumferential weld 9 and the burnt layer of coke drum upper along between.Described chuck 6 is the metal chuck of moulding, and directly the described tower wall of suit is convenient to dismounting outward, or forms chuck with network molybdenum steel plate and the welding of tower wall.Directly be welded on outside described tower wall.On described circulation line 8, be provided with stopping valve 5, non-return valve 7.
As another embodiment, the chuck outside the tower wall of the production tower described in being located at and new tower is N, between the production tower described in being located at respectively and new tower lower cone circumferential weld and the upper edge of coke drum Jiao layer.Outside the tower wall that described chuck welds together with steel plate and described tower wall or forming metal chuck suit is described.The described metal chuck at two coke towers and the pipeline of connection form airtight loop.The flow that guarantees heat-conducting medium in chuck, the heat transmission that can meet between the old and new's tower is as the criterion.
The utility model is set up endless tube road heating installation 1 and ring cone heating equipment 2 after by the coke drum four-way valve described to the pipeline of two coke drum lower cones bottoms, by its heating oil gas to coke drum preheating.Give separately the direct preheating of coke drum more than 330 ℃.Be equipped with chuck outward and be communicated with by circulation line with the tower wall of producing the lower cone circumferential weld top of tower and new tower, thereby realized by two coke drum closed cycle chucks, with heat-conducting medium, the production waste heat of producing tower height fire stons oil coke is passed to new coke drum preheating more than 330 ℃.Two cover heating facilities can be given coke drum preheating individually or simultaneously.
The utlity model has following advantage:
1, with heating installation, give new coke drum preheating, energy-saving and cost-reducing, steady material balance and the heat balance of apparatus system when realizing Energy Conservation of Delayed Coker consumption reduction, has reduced the cyclic swing of device; Shortened coke drum warm up time, improved the liquid of device and receive, reduced the coking rate of furnace tubing, the gas speed that has reduced system changes and the fluctuation of the coke powder amount of carrying, and apparatus system technological operation is optimized.
2, energy-conservation, with the deep fat that traditional preheating method has 330 ℃ of left and right, flow to enter at the bottom of coke drum and get rid of oil tank and become sump oil, form heat waste.With heating installation, give new coke drum preheating, although increased heat supply, the heat energy 100% of newly-increased heat supply utilizes and has reduced the coking rate of furnace tubing.
3, with heating installation, give new coke drum preheating, reduce or avoided getting rid of oil (oil of the new tower of preheating) forming, saved electricity (steam) consumption of pump, reduced manual operation, reduced the generation of system sump oil.
4, with heating installation, give new coke drum preheating, coke drum bottom can be preheating to 500 ℃, cutting the tower initial stage that feeds intake and fully guarantee the thermo-cracking condition of residual oil.Substantially avoid the system cycle fluctuation of device, in the situation that coke drum material is permitted, can greatly shorten the time of coke drum preheating, for device production at high load provides condition; At Xin Ta, feed intake the initial stage simultaneously, because of the cracking temperature that has guaranteed that residual oil is suitable, thereby improved the feed intake liquid at initial stage of new tower, receive, this point is that tradition cannot be accomplished without the warm tower of stifled burnt valve.The device of particularly producing for underload, great in its effect of the thermally equilibrated angle of device.
5, the chuck by the old and new's tower gives with old tower waste heat that new tower is auxiliary to heat up, and has reached coke cooling object in old tower in the time of energy-saving and cost-reducing, has shortened the cold burnt time of old tower, reduces or avoided the distortion of coke drum Lower Half girth sheets, prolongation coke drum work-ing life.
Claims (9)
1. a coke drum primary heater unit, comprises two coke drums, it is characterized in that, after coke drum four-way valve, on the pipeline of two coke drum lower cone circumferential welds and lower cone, heating installation is set respectively.
2. coke drum primary heater unit according to claim 1, is characterized in that, described heating installation type of heating be electromagnetism, far infrared rays, electrically heated at least one.
3. coke drum primary heater unit according to claim 1, is characterized in that, the heating installation to the pipeline installing of two coke drum lower cone circumferential welds after coke drum four-way valve is endless tube road heating installation.
4. coke drum primary heater unit according to claim 3, is characterized in that, the heating installation arranging on two coke drum lower cones is ring cone heating equipment.
5. coke drum primary heater unit according to claim 4, is characterized in that, described endless tube road heating installation and ring cone heating equipment are integrated form or separate form, are installed on respectively pipeline and lower cone outside.
6. coke drum primary heater unit according to claim 5, it is characterized in that, the tower wall on the lower cone circumferential weld top of two described coke drums is equipped with chuck outward, and is communicated with by circulation line, form airtight loop, in described chuck and circulation line, be marked with heat-conducting medium.
7. coke drum primary heater unit according to claim 6, is characterized in that, described chuck, for being at least one, is arranged between the lower cone circumferential weld and the upper edge of the burnt layer of coke drum of coke drum.
8. coke drum primary heater unit according to claim 7, is characterized in that, described chuck welds together with steel plate and Ta Bi or is surrounded on outside described tower wall with forming metal chuck.
9. coke drum primary heater unit according to claim 8, is characterized in that, described heating installation and chuck circulation line are provided with liquidometer, thermometer, stopping valve, non-return valve and instrument teletransmission and heating installation Controlling System.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320370168.2U CN203487100U (en) | 2013-06-26 | 2013-06-26 | Coke tower preheating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320370168.2U CN203487100U (en) | 2013-06-26 | 2013-06-26 | Coke tower preheating device |
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| Publication Number | Publication Date |
|---|---|
| CN203487100U true CN203487100U (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320370168.2U Expired - Lifetime CN203487100U (en) | 2013-06-26 | 2013-06-26 | Coke tower preheating device |
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| CN (1) | CN203487100U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104232145A (en) * | 2014-05-28 | 2014-12-24 | 林永波 | Gas circular preheating device and process for delayed coking coke tower |
| CN104974782A (en) * | 2015-06-26 | 2015-10-14 | 林永波 | Delayed-coking coke tower outside-system heating and preheating device and technology |
| CN106190226A (en) * | 2015-05-05 | 2016-12-07 | 湖南万通科技股份有限公司 | A kind of coke drum |
| CN110527548A (en) * | 2019-09-06 | 2019-12-03 | 林永波 | A kind of delayed coking coke drum conduction oil circulation preheating device and technique |
-
2013
- 2013-06-26 CN CN201320370168.2U patent/CN203487100U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104232145A (en) * | 2014-05-28 | 2014-12-24 | 林永波 | Gas circular preheating device and process for delayed coking coke tower |
| CN104232145B (en) * | 2014-05-28 | 2016-03-02 | 林永波 | A kind of delayed coking coke drum gas circulation primary heater unit and technique |
| CN106190226A (en) * | 2015-05-05 | 2016-12-07 | 湖南万通科技股份有限公司 | A kind of coke drum |
| CN106190226B (en) * | 2015-05-05 | 2019-06-04 | 湖南万通科技股份有限公司 | A kind of coke drum |
| CN104974782A (en) * | 2015-06-26 | 2015-10-14 | 林永波 | Delayed-coking coke tower outside-system heating and preheating device and technology |
| CN110527548A (en) * | 2019-09-06 | 2019-12-03 | 林永波 | A kind of delayed coking coke drum conduction oil circulation preheating device and technique |
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Granted publication date: 20140319 |
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