CN211141964U - Cracking refining system of oil product lava furnace - Google Patents
Cracking refining system of oil product lava furnace Download PDFInfo
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- CN211141964U CN211141964U CN201921944637.0U CN201921944637U CN211141964U CN 211141964 U CN211141964 U CN 211141964U CN 201921944637 U CN201921944637 U CN 201921944637U CN 211141964 U CN211141964 U CN 211141964U
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Abstract
The utility model discloses an oil lava furnace cracking refining system, including lava reactor and piece-rate system, the lava reactor includes a jar body, heating furnace, tower tray, flue gas heating jacket, flue gas pipeline, lava furnace, solvent inlet tube, raw materials inlet tube, oil gas export and residual oil export, wherein, the lower extreme of jar body is provided with the heating furnace; the tray is arranged at the middle upper end in the tank body; the heating device comprises a tank body, a heating furnace, a flue gas heating sleeve, a tower tray, a flue gas pipeline and a gas pipeline, wherein the flue gas heating sleeve is sleeved outside the tank body, an air circulation space is formed between the flue gas heating sleeve and the outer wall of the tank body, the upper end of the flue gas heating sleeve is the same as the horizontal position of the tower tray, and the flue gas pipeline is arranged above the flue gas heating; the lava reactor can uniformly heat the oil product at a temperature not higher than the processing temperature, thereby improving the safety coefficient of the equipment and the chroma and the yield of the product.
Description
Technical Field
The utility model belongs to the technical field of the petroleum processing technique and specifically relates to an oil lava stove schizolysis refining system.
Background
With the development of technology and other energy sources, heavy oil, waste oil, and waste plastic may be produced. For environmental and recycling purposes, heavy oil, waste oil, and waste plastic need to be further processed into various standard fuel oils.
The process flow adopted in the current market is as follows: raw material → heating furnace → lava heater → evaporator → reactor → cooler → product. The process equipment requires five independent pieces of equipment, including: 1, a heating furnace for processing materials, and independent special equipment. 2, in a material high-temperature section, lava is used for heating in a lava heater, and the device is independent and special equipment is used. 3, the lava is heated by a lava furnace, the device is independent and special, and the smoke temperature is higher than 550 ℃. 4, independent lava operation system. 5, special evaporator and reactor. A number of disadvantages arise: the original process condition requires that the equipment is a pressure container; the original equipment has more parts, high cost and large operation difficulty; the original equipment has high energy consumption and high operation cost; the investment of the original equipment is large, and the occupied area is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an oil lava furnace schizolysis refining system and method.
To achieve the above object, the present invention adopts the following: oil lava stove schizolysis refining system, including lava reactor and piece-rate system, wherein:
the lava reactor comprises a tank body, a heating furnace, a tower tray, a flue gas heating jacket, a flue gas pipeline, a lava furnace, a solvent inlet pipe, a raw material inlet pipe, an oil gas outlet and a residual oil outlet, wherein,
the lower end of the tank body is provided with a heating furnace;
the tray is arranged at the middle upper end in the tank body;
the heating device comprises a tank body, a heating furnace, a flue gas heating sleeve, a tower tray, a flue gas pipeline and a gas pipeline, wherein the flue gas heating sleeve is sleeved outside the tank body, an air circulation space is formed between the flue gas heating sleeve and the outer wall of the tank body, the upper end of the flue gas heating sleeve is the same as the horizontal position of the tower tray, and the flue gas pipeline is arranged above the flue gas heating;
the lava furnace is composed of a hollow jacket and lava liquid in the hollow jacket, the lava furnace is arranged between the heating furnace and the tank body, and the inner wall of the lava furnace is abutted to the outer wall of the lower end of the tank body;
a solvent inlet pipe and a raw material inlet pipe which are connected with the outside are arranged on the side wall of the tank body and are both positioned below the tower tray, and a spray head is arranged at one end of the solvent inlet pipe extending into the tank body;
an oil gas outlet connected with the outside is formed in the top wall of the tank body, and a residual oil outlet connected with the outside is formed in the side wall of the bottom of the tank body;
the separation system comprises a first heat exchanger, a second heat exchanger, a first cooler, a second cooler, a third cooler, an evaporator, a raw material tank, a gasoline intermediate tank, a gasoline storage tank, a diesel tank and a slag oil tank, wherein,
a raw material inlet pipe of the lava reactor is connected with the raw material tank sequentially through a first outlet of the first heat exchanger, a first inlet of the first heat exchanger, a first outlet of the second heat exchanger and a first inlet of the second heat exchanger;
an oil gas outlet of the lava reactor is connected with the gasoline separation tank sequentially through a second inlet of the first heat exchanger, a second outlet of the first heat exchanger, an inlet of the evaporator, a first outlet of the evaporator and the first cooler;
a second outlet of the evaporator is connected with the diesel tank sequentially through a second inlet of the second heat exchanger, a second outlet of the second heat exchanger and the second cooler;
and a residual oil outlet of the lava reactor is connected with the residual oil tank through a third cooler.
Preferably, the gasoline separating tank is provided with a gas outlet and a gasoline outlet, and the gas outlet is connected with a fuel inlet of the heating furnace through a pipeline. The flue gas waste heat that the effectual recovery heating furnace produced has improved fuel utilization ratio.
Preferably, the outside cover of flue gas heating jacket is equipped with the heat preservation.
Preferably, the opening rate of the tray is 10% -50%, and the pore diameter is 5mm-17 mm.
Preferably, a gap is formed between the tray and the inner wall of the tank body, and the gap is 3mm-8 mm.
Preferably, still include the chimney, the chimney sets up in jar body top, the flue gas pipeline is no less than three, and every flue gas pipeline all is connected with the chimney.
Preferably, one end of the solvent introducing pipe extending to the inside of the tank body extends to the middle position of the tank body, at least three branch pipes are arranged in the horizontal direction around the center point at one end of the solvent introducing pipe extending to the inside of the tank body, and each branch pipe is provided with a spray head.
Preferably, a middle manhole is arranged on the side wall of the tank body, and a top manhole is arranged on the top wall of the tank body.
The utility model has the advantages of it is following:
1. the system adopts the lava reactor to replace five independent devices of a heating furnace, a lava heater, an evaporator and a reactor in the prior art, thereby reducing the floor area of a factory and saving the use space;
2. in the separation system, the gas separated in the gasoline intermediate tank is sent into the heating furnace through a pipeline to be used as fuel, so that the fuel is recycled, the combustion raw materials are saved, and the utilization rate is improved;
3. the heat exchange between the raw material and the light oil gas of the lava reactor is carried out by adopting a heat exchanger, so that the temperature of the raw material is increased to 160-fold-by-250 ℃ when the raw material enters the lava reactor, the energy is effectively saved, and the utilization rate is improved.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of a cracking refining system of a well oil product lava furnace
FIG. 2 is a schematic structural diagram of a lava reactor according to the present invention;
FIG. 3 is a top view of the lava reactor of the present invention;
FIG. 4 is a schematic structural view of a molten rock reactor according to the present invention;
FIG. 5 is a schematic view of the structure of a solvent introduction pipe of the lava reactor according to the present invention;
in the figures, the various reference numbers are:
1-tank body, 2-heating furnace, 3-tray, 4-flue gas heating jacket, 5-flue gas pipeline, 6-chimney, 7-lava furnace, 8-solvent inlet pipe, 9-branch pipe, 10-spray head, 11-raw material inlet pipe, 12-oil gas outlet, 13-residual oil outlet, 14-insulating layer, 15-manhole, 16-manhole, 17-thermometer, 18-liquid level meter, 19-first heat exchanger, 191-first inlet of first heat exchanger, 192-first outlet of first heat exchanger, 193-second inlet of first heat exchanger, 194-second outlet of first heat exchanger, 20-second heat exchanger, 201-first inlet of second heat exchanger, 202-first outlet of second heat exchanger, 203-second inlet of second heat exchanger, 204-second outlet of second heat exchanger, 21-evaporator, 211-first outlet of evaporator, 212-second outlet of evaporator, 22-first cooler, 23-second cooler, 24-third cooler, 25-gasoline knockout drum, 251-gas outlet of gasoline knockout drum, 252-gasoline outlet of gasoline knockout drum, 26-gasoline tank, 27-stock tank, 28-diesel tank, 30-slag oil tank.
Detailed Description
In order to illustrate the invention more clearly, the invention is further described below with reference to preferred embodiments. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
As shown in figures 1 to 3, the utility model provides an oil lava furnace schizolysis refining system, the whole production technology of reactor adopts the design of ordinary pressure, and device operating pressure is less than 60Kpa, normally is 20-30 Kpa. Wherein the diameter of the tank body 1 is 2800mm, the thickness is 22mm, the tray 3 (as shown in fig. 4) is arranged at the middle upper end of the inner wall of the tank body 1, a gap is arranged between the tray 3 and the inner wall of the tank body 1, the gap is 5mm, the aperture ratio of the tray 3 is 33%, and the aperture is 10 mm. A lava furnace 7 is arranged between the tank body 1 and the heating furnace, the lava furnace 7 is composed of a hollow jacket and lava liquid in the hollow jacket, the diameter of the lava furnace 7 is 2900mm, and the inner wall of the lava furnace 7 is abutted to the outer wall of the lower end of the tank body 1 to wrap 1/3 on the wall of the tank body 1. After the lava furnace 7 is heated by radiation in the hearth of the heating furnace 2, the lava liquid in the lava furnace 7 can be heated to 480-520 ℃, the heat of the high-temperature lava liquid is transferred to the inner wall of the tank body 1, and the heat of the inner wall of the heated tank body 1 is transferred to the raw material liquid in the tank body 1 in a balanced manner. The temperature of the raw material liquid in the tank body 1 is kept between 380 ℃ and 420 ℃. The raw material liquid is vaporized at the temperature of 380-420 ℃, and an oil-gas space is formed above the liquid level of the raw material liquid.
Be equipped with flue gas heating jacket 4 outside jar body 1 and lava stove 7, the diameter of flue gas heating jacket 4 is 3100mm, there is certain space between flue gas heating jacket 4 and the jar body 1, the lower extreme 4 of flue gas heating jacket and the upper end butt of heating furnace 2, the upper end of flue gas heating jacket 4 is connected with jar lateral wall of body 1, the upper end peak of flue gas heating jacket 4 is unanimous with the horizontal position of tray 4, the top of flue gas heating jacket 4 is provided with 8 flue gas pipelines 5 of diameter 100, every flue gas pipeline 5 all is connected with diameter 300 chimney 6, discharge the flue gas through chimney 6. The hot flue gas generated by the heating furnace 2 is upward along the gap between the flue gas heating jacket 4 and the tank body 1, so that a space for air circulation is formed between the flue gas heating jacket and the heating furnace and the tank body, wherein the fuel combustion flame temperature of the heating furnace 2 can reach 900 ℃, the hearth temperature 560-. The outside cover of flue gas heating jacket 4 is equipped with heat preservation 14, and the diameter of heat preservation 14 is 3270mm, and heat preservation 14 uses foaming cement. Because the raw materials after internal vaporization are heated in a balanced manner, the temperature is constant between 380 and 420 ℃, secondary cracking reaction can not continuously occur after cracking reaction, the molecular weight of the produced product can not be reduced, and the quality of the produced oil is further ensured.
As shown in fig. 5, a solvent inlet pipe 8 and a raw material inlet pipe 11 are provided below the tray 3 on the tank body 1, the solvent inlet pipe 8 is connected to an external solvent tank at one end, the other end extends to a middle position inside the tank body 1, a plurality of branch pipes 9 are uniformly provided around the middle position, and each branch pipe is provided with a spray head 10. The catalyst sprayed from the spray head 10 makes the rising oil gas fully perform chemical reactions such as olefin saturation, isomerization, addition, replacement and the like. The generated oil gas is subjected to saturation stabilization reaction, so that the chemical structure is stable and the physical property is constant. The purpose of refining oil is achieved. The raw material introduction pipe 11 is connected to the raw material tank 27 sequentially through the first outlet 192 of the first heat exchanger, the first inlet 191 of the first heat exchanger, the first outlet 202 of the second heat exchanger, and the first inlet 201 of the second heat exchanger.
The reacted oil gas rises and is rectified through a tower tray 3, the rectified heavy oil liquid falls into the raw material liquid, and the heating reaction is repeated; the rectified light oil gas is led out from an oil gas outlet 12 which is connected with the outside on the top wall of the tank body 1. The led light oil gas passes through the second inlet 193 of the first heat exchanger, the second outlet 194 of the first heat exchanger, the inlet of the evaporator 21, the first outlet 211 of the evaporator and the first cooler 22 in sequence and is connected with the inlet of the gasoline separating tank 25. In the first heat exchanger 19, the light oil gas and the raw material are subjected to first heat exchange. The gas outlet 251 and the gasoline outlet 252 are arranged on the gasoline separating tank 25, and the gas outlet 251 of the gasoline separating tank is connected with the fuel inlet of the heating furnace 2 through a pipeline, so that the discharged gas is used as a combustion raw material for recycling; the gas outlet 252 of the gasoline separator tank is connected to the gasoline tank 26. The second outlet 212 of the evaporator is connected to the diesel tank 28 sequentially through the second inlet 203 of the second heat exchanger, the second outlet 204 of the second heat exchanger, and the second cooler 23. In the second heat exchanger 20, the light oil gas produced by the lava reactor exchanges heat with the raw material for the second time. So that the temperature of the raw material reaches 160-250 ℃ before the raw material enters the lava reactor.
The residual oil is discharged into a residual oil tank 30 in a fixed amount after passing through a third cooler 24 from a residual oil outlet 13 connected with the outside at the bottom of the tank body 1.
A middle manhole 15 is arranged on the side wall of the tank body 1, and a top manhole 16 is arranged on the top wall of the tank body 1. The position and the number of the manholes can be adjusted according to actual conditions.
A liquid level meter 18 and a thermometer 17 are arranged on the lava reactor 1, a flowmeter is arranged on the heating furnace, and the liquid level meter 18, the thermometer 17 and the flowmeter are all connected with a DCS monitoring device.
The system adopts an intelligent instrument for monitoring, and the realization of the real-time monitoring function is a very mature technology in the field and is not detailed here.
The working principle is as follows:
the raw materials sequentially pass through the second heat exchanger 20 and the first heat exchanger 19 to exchange heat with the light oil gas produced by the lava reactor, so that the temperature of the raw materials reaches 160-250 ℃, and then the raw materials enter the lava reactor;
the lava furnace 7 is heated by the hearth radiation of the heating furnace 2, the lava furnace 7 is heated to 480-420 ℃, the lava liquid in the lava furnace 7 is heated and the heat is transferred to the wall of the tank body 1, the heated wall of the tank body 1 transfers the heat to the raw material in a balanced manner, and the temperature of the raw material is kept at 380-420 ℃;
the raw material is evaporated and vaporized at the temperature of 380-420 ℃, and the vaporized raw material is heated by high-temperature flue gas at the temperature of 500-580 ℃ in a flue gas heater in a heat conduction manner, so that the raw material generates a thermal cracking reaction to generate light oil gas;
spraying the catalyst in an atomized state, and carrying out chemical reactions such as olefin saturation, isomerization, addition, replacement and the like with the ascending light oil gas;
the reacted light oil gas rises through a tray 3 for rectification, the heavy oil liquid after rectification falls down for heating again, and the light oil gas after rectification is led out from a light oil gas outlet at the top and enters a separation system for separating gas, gasoline, diesel oil and residual oil. The separated gas is introduced into the hearth of the heating furnace 2.
Wherein the raw materials include heavy oil, waste plastic liquid and waste organic matter liquid.
Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it is obvious for those skilled in the art to make other variations or changes based on the above descriptions, and all the embodiments cannot be exhausted here, and all the obvious variations or changes that belong to the technical solutions of the present invention are still in the protection scope of the present invention.
Claims (8)
1. Oil lava stove schizolysis refining system, its characterized in that, including lava reactor and piece-rate system, wherein:
the lava reactor comprises a tank body, a heating furnace, a tower tray, a flue gas heating jacket, a flue gas pipeline, a lava furnace, a solvent inlet pipe, a raw material inlet pipe, an oil gas outlet and a residual oil outlet, wherein,
the lower end of the tank body is provided with a heating furnace;
the tray is arranged at the middle upper end in the tank body;
the heating device comprises a tank body, a heating furnace, a flue gas heating sleeve, a tower tray, a flue gas pipeline and a gas pipeline, wherein the flue gas heating sleeve is sleeved outside the tank body, an air circulation space is formed between the flue gas heating sleeve and the outer wall of the tank body, the upper end of the flue gas heating sleeve is the same as the horizontal position of the tower tray, and the flue gas pipeline is arranged above the flue gas heating;
the lava furnace is composed of a hollow jacket and lava liquid in the hollow jacket, the lava furnace is arranged between the heating furnace and the tank body, and the inner wall of the lava furnace is abutted to the outer wall of the lower end of the tank body;
a solvent inlet pipe and a raw material inlet pipe which are connected with the outside are arranged on the side wall of the tank body and are both positioned below the tower tray, and a spray head is arranged at one end of the solvent inlet pipe extending into the tank body;
an oil gas outlet connected with the outside is formed in the top wall of the tank body, and a residual oil outlet connected with the outside is formed in the side wall of the bottom of the tank body;
the separation system comprises a first heat exchanger, a second heat exchanger, a first cooler, a second cooler, a third cooler, an evaporator, a raw material tank, a gasoline intermediate tank, a gasoline storage tank, a diesel tank and a slag oil tank, wherein,
a raw material inlet pipe of the lava reactor is connected with the raw material tank sequentially through a first outlet of the first heat exchanger, a first inlet of the first heat exchanger, a first outlet of the second heat exchanger and a first inlet of the second heat exchanger;
an oil gas outlet of the lava reactor is connected with the gasoline separation tank sequentially through a second inlet of the first heat exchanger, a second outlet of the first heat exchanger, an inlet of the evaporator, a first outlet of the evaporator and the first cooler;
a second outlet of the evaporator is connected with the diesel tank sequentially through a second inlet of the second heat exchanger, a second outlet of the second heat exchanger and the second cooler;
and a residual oil outlet of the lava reactor is connected with the residual oil tank through a third cooler.
2. The oil product lava furnace cracking refining system of claim 1, wherein the gasoline knockout drum is provided with a gas outlet and a gasoline outlet, and the gas outlet is connected with a fuel inlet of the heating furnace through a pipeline.
3. The oil product lava furnace cracking refining system of claim 1, wherein the flue gas heating jacket is externally sheathed with a heat insulation layer.
4. The oil product lava furnace cracking refining system of claim 1, wherein the tray has an open porosity of 10-50% and a pore size of 5-17 mm.
5. The oil product lava furnace cracking refining system of claim 1, wherein a gap is provided between the tray and the inner wall of the tank, and the gap is 3mm-8 mm.
6. The oil product lava furnace cracking refining system of claim 1, further comprising a chimney, wherein the chimney is arranged at the top of the tank body, the number of the flue gas pipes is not less than three, and each flue gas pipe is connected with the chimney.
7. The oil product lava furnace cracking refining system of claim 1, wherein one end of the solvent inlet pipe extending into the tank body extends to a middle position of the tank body, at least three branch pipes are arranged in a horizontal direction around the center point of the end of the solvent inlet pipe extending into the tank body, and each branch pipe is provided with a nozzle.
8. The oil product lava furnace cracking refining system according to any one of claims 1 to 7, wherein a middle manhole is arranged on a side wall of the tank body, and a top manhole is arranged on a top wall of the tank body.
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| CN201921944637.0U CN211141964U (en) | 2019-11-12 | 2019-11-12 | Cracking refining system of oil product lava furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747008A (en) * | 2019-11-12 | 2020-02-04 | 珠海天汇能源科技有限公司 | Cracking refining system and method for oil product lava furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747008A (en) * | 2019-11-12 | 2020-02-04 | 珠海天汇能源科技有限公司 | Cracking refining system and method for oil product lava furnace |
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