Rich oil circulation heating device

Abstract

The utility model discloses a rich oil circulation heating device, which relates to the technical field of rich oil heating and comprises a tubular heating furnace, a rich oil heater is placed on one side of the tubular heating furnace, a switching device is fixedly mounted on one side of the top of the rich oil heater, and the top of the tubular heating furnace is fixedly connected with one side of the switching device. According to the rich oil circulation heating device, maintenance can be conducted without overall shutdown, the debenzolization production efficiency is improved, coal gas diffusion is reduced, energy consumption is reduced, the fixed oil pipe is spirally arranged in the heat preservation cover, the inner side and the outer side of the fixed oil pipe are heated through the inner heating pipe and the outer heating pipe respectively, and therefore the heat preservation efficiency is improved. The heating time of rich oil in the fixed oil pipe is prolonged, the rich oil in the fixed oil pipe is fully heated, so that the rich oil in the fixed oil pipe is heated more uniformly, the tubular heating furnace is convenient to maintain, the heating device and the tubular heating furnace operate in a mutual standby mode, and the heating stability of the rich oil is maintained.

Description

TECHNICAL FIELD

[0001] The utility model relates to rich oil heating technical field more specifically, the utility model relates to a kind of rich oil circulation heating device. BACKGROUND

[0002] The benzene series in coke oven gas in coking industry belongs to high-value byproducts, and can create benefits for coking enterprises after recovery. At present, the recovery method commonly used by coking enterprises is as follows: after the benzene series in coke oven gas is absorbed by coking wash oil, rich oil is formed, and high-value byproducts such as crude benzene or light benzene are obtained after the rich oil is subjected to a debenzolization process. The debenzolization process generally includes atmospheric overheat steam stripping debenzolization process, negative pressure overheat steam stripping debenzolization process and negative pressure steam-free debenzolization process. Negative pressure debenzolization is a highly efficient benzene recovery method and is widely used in coal chemical industry.

[0003] The existing coking workshop adopts a debenzolization process in which rich oil is heated by a tubular furnace. The crude benzene system is designed as a two-system benzene washing system corresponding to a set of debenzolization system. However, when the tubular furnace cannot be cut out due to abnormality, the crude benzene system needs to be shut down as a whole for maintenance, which not only reduces the efficiency of debenzolization production, but also easily causes a large amount of gas to be released and affects the operation of the desulfurization and denitrification device. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a rich oil circulation heating device, which can effectively solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme that

[0006] A rich oil circulation heating device includes a tubular heating furnace. A rich oil heater is placed on one side of the tubular heating furnace. A switching device is fixedly installed on one side of the top of the rich oil heater. The top of the tubular heating furnace is fixedly connected to one side of the switching device.

[0007] The switching device includes a fixed pipe. An oil inlet is fixedly installed on the right end of the fixed pipe. A first oil inlet pipe is fixedly communicated to the left side of the right end of the fixed pipe. A second oil inlet pipe is fixedly communicated to the right side of the right end of the fixed pipe. An oil outlet is fixedly communicated to the left end of the fixed pipe. A first oil outlet pipe is fixedly communicated to the left side of the left end of the fixed pipe. A second oil outlet pipe is fixedly communicated to the right side of the left end of the fixed pipe.

[0008] Preferably, the tubular heating furnace includes a burner. A radiation chamber is fixedly installed on the top of the burner. A convection chamber is fixedly installed on the top of the radiation chamber. Exhaust gas outlets are fixedly communicated to both sides of the top of the convection chamber. A first oil inlet is fixedly communicated to one end of the convection chamber. A first oil outlet is fixedly communicated to the other end of the convection chamber. The first oil inlet is connected to the first oil inlet pipe. The first oil outlet is connected to the first oil outlet pipe.

[0009] Preferably, the fixed pipe is internally provided with cavities at both ends, the first oil inlet pipe and the second oil inlet pipe are located at both sides of the right end cavity of the fixed pipe, and the positions of the first oil inlet pipe and the second oil inlet pipe correspond to each other, the first oil outlet pipe and the second oil outlet pipe are located at both sides of the left end cavity of the fixed pipe, and the positions of the first oil outlet pipe and the second oil outlet pipe correspond to each other.

[0010] Preferably, the fixed pipe is internally provided with cavities at both ends, the first oil inlet pipe and the second oil inlet pipe are located at both sides of the right end cavity of the fixed pipe, and the positions of the first oil inlet pipe and the second oil inlet pipe correspond to each other, the first oil outlet pipe and the second oil outlet pipe are located at both sides of the left end cavity of the fixed pipe, and the positions of the first oil outlet pipe and the second oil outlet pipe correspond to each other.

[0011] Preferably, the fixed pipe is internally provided with cavities at both ends, the first oil inlet pipe and the second oil inlet pipe are located at both sides of the right end cavity of the fixed pipe, and the positions of the first oil inlet pipe and the second oil inlet pipe correspond to each other, the first oil outlet pipe and the second oil outlet pipe are located at both sides of the left end cavity of the fixed pipe, and the positions of the first oil outlet pipe and the second oil outlet pipe correspond to each other.

[0012] Preferably, the fixed pipe is internally provided with cavities at both ends, the first oil inlet pipe and the second oil inlet pipe are located at both sides of the right end cavity of the fixed pipe, and the positions of the first oil inlet pipe and the second oil inlet pipe correspond to each other, the first oil outlet pipe and the second oil outlet pipe are located at both sides of the left end cavity of the fixed pipe, and the positions of the first oil outlet pipe and the second oil outlet pipe correspond to each other.

[0013] Preferably, the fixed pipe is internally provided with cavities at both ends, the first oil inlet pipe and the second oil inlet pipe are located at both sides of the right end cavity of the fixed pipe, and the positions of the first oil inlet pipe and the second oil inlet pipe correspond to each other, the first oil outlet pipe and the second oil outlet pipe are located at both sides of the left end cavity of the fixed pipe, and the positions of the first oil outlet pipe and the second oil outlet pipe correspond to each other.

[0014] Preferably, the fixed pipe is internally provided with cavities at both ends, the first oil inlet pipe and the second oil inlet pipe are located at both sides of the right end cavity of the fixed pipe, and the positions of the first oil inlet pipe and the second oil inlet pipe correspond to each other, the first oil outlet pipe and the second oil outlet pipe are located at both sides of the left end cavity of the fixed pipe, and the positions of the first oil outlet pipe and the second oil outlet pipe correspond to each other.

[0015] Compared with the prior art, the utility model has the advantages of the following beneficial effects:

[0016] 1、 through the rich oil heater that adds, can replace the effect that traditional pipe type heating furnace heats, when pipe type heating furnace needs overhauling, need not whole stoppage, can carry out overhauling, improve the efficiency of debenzolization production, reduce coal gas diffusion, reduce energy consumption;

[0017] 2、 utilize fixed oil pipe and set up in the inside of heat preservation cover, and heat the inside and outside of fixed oil pipe respectively through internal heating pipe and outer heating pipe, prolong the time of fixed oil pipe inside rich oil heating, carry out sufficient heating to the rich oil of fixed oil pipe inside, make the rich oil of fixed oil pipe inside heat more evenly;

[0018] 3、 through setting switching device, can quickly switch pipe type heating furnace and rich oil heater, be convenient for the maintenance of pipe type heating furnace, with pipe type heating furnace mutual standby operation, maintain the stability of rich oil heating. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is whole structure schematic view of the utility model;

[0020] Figure 2 It is pipe type heating furnace structure schematic view of the utility model;

[0021] Figure 3 It is switching device structure schematic view of the utility model;

[0022] Figure 4 It is switching device internal structure schematic view of the utility model;

[0023] Figure 5 It is rich oil heater structure schematic view of the utility model.

[0024] The figure mark is: 1, pipe type heating furnace;2, switching device;3, rich oil heater;11, combustor;12, radiation chamber;13, convection chamber;14, smoke outlet;15, first oil inlet;16, first oil outlet;21, fixed tube;22, oil inlet;23, first oil inlet pipe;24, second oil inlet pipe;25, first oil outlet pipe;26, second oil outlet pipe;27, oil outlet;210, conversion motor;211, drive bevel gear;212, transmission shaft;213, transmission bevel gear;214, steering block;215, communication groove;31, drive chassis;32, heat preservation cover;33, operation panel;34, internal heating pipe;35, outer heating pipe;36, second oil inlet;37, second oil outlet;38, fixed oil pipe. DETAILED DESCRIPTION

[0025] In order to make the technical problem, technical scheme and advantage that the utility model is going to solve more clearly, below will carry out detailed description with the drawings and specific embodiment.

[0026] As the drawingsFigure 1 to the attached Figure 5 The embodiment of the utility model provides a kind of oil-rich circulation heating device, including tubular heating furnace 1, switching device 2 and oil-rich heater 3, switching device 2 is fixedly installed in the top of oil-rich heater 3 one side, and the top of tubular heating furnace 1 is fixedly connected with one side of switching device 2;

[0027] As Figure 3 - Figure 4 As shown, switching device 2 includes fixed pipe 21 and steering block 214, the right end of fixed pipe 21 is fixedly installed with oil inlet 22, the left side of the right end of fixed pipe 21 is fixedly communicated with first oil inlet pipe 23, the right side of the right end of fixed pipe 21 is fixedly communicated with second oil inlet pipe 24, the left end of fixed pipe 21 is fixedly communicated with oil outlet 27, the left side of the left end of fixed pipe 21 is fixedly communicated with first oil outlet pipe 25, and the right side of the left end of fixed pipe 21 is fixedly communicated with second oil outlet pipe 26.

[0028] As Figure 2 As shown, tubular heating furnace 1 includes burner 11, first oil inlet 15 and first oil outlet 16, the top of burner 11 is fixedly installed with radiation chamber 12, the top of radiation chamber 12 is fixedly installed with convection chamber 13, both sides of the top of convection chamber 13 are fixedly communicated with smoke outlet 14, and first oil inlet 15 and first oil outlet 16 are fixedly installed at both sides of convection chamber 13 respectively, first oil inlet 15 is connected with first oil inlet pipe 23, and first oil outlet 16 is connected with first oil outlet pipe 25.

[0029] Among them, the two ends in the inside of fixed pipe 21 are provided with cavity, and first oil inlet pipe 23 and second oil inlet pipe 24 are located at both sides in the inside of the right end cavity of fixed pipe 21, and the positions of first oil inlet pipe 23 and second oil inlet pipe 24 correspond, and first oil outlet pipe 25 and second oil outlet pipe 26 are located at both sides in the inside of the left end cavity of fixed pipe 21, and the positions of first oil outlet pipe 25 and second oil outlet pipe 26 correspond.

[0030] As Figure 4 As shown, transmission shaft 212 is rotatably installed in the inside of fixed pipe 21, transmission shaft 212 is rotatably installed in the inside of fixed pipe 21, and the outer surface of transmission shaft 212 is fixedly sleeved with transmission bevel gear 213, and the outer surface of transmission shaft 212 is fixedly sleeved with transmission bevel gear 213.

[0031] The internal part of the steering blocks 214 at both ends is provided with a connecting groove 215. The connecting groove 215 is L-shaped. The oil outlet 27 is connected to the first oil outlet pipe 25 and the second oil outlet pipe 26 through the connecting groove 215. The oil inlet 22 is connected to the first oil inlet pipe 23 and the second oil inlet pipe 24 through the connecting groove 215. The side of the fixed pipe 21 is fixedly installed with a conversion motor 210. The output end of the conversion motor 210 is fixedly installed with a drive bevel gear 211. The drive bevel gear 211 is rotatably installed inside the fixed pipe 21. The side of the drive bevel gear 211 meshes with the side of the transmission bevel gear 213.

[0032] Using the action of the conversion motor 210, the connecting groove 215 inside the steering block 214 rotates inside the cavity of the fixed pipe 21. When it is necessary to heat the rich oil through the tubular furnace 1, the connecting groove 215 inside the steering blocks 214 at both ends will rotate to the side of the first oil inlet pipe 23, so that the rich oil enters the tubular furnace 1 through the oil inlet 22 and the connecting groove 215 from the first oil inlet pipe 23 for heating. When it is necessary to repair the tubular furnace 1, the conversion motor 210 controls the drive bevel gear 211 to rotate, so that the connecting groove 215 rotates to the side of the fixed pipe 21. The tank 215 rotates to the side of the second oil outlet pipe 26 and the second oil inlet pipe 24. At this time, the rich oil flows into the rich oil heater 3 through the oil inlet 22 and the connecting tank 215 from the second oil inlet pipe 24. After being heated, it is discharged from the oil outlet 27 through the second oil outlet pipe 26 and the connecting tank 215. The added rich oil heater 3 can replace the heating effect of the traditional tubular heater 1. When the tubular heater 1 needs to be repaired, it can be repaired without the whole operation being stopped, which improves the efficiency of benzene removal production, reduces the release of coal gas, and reduces energy consumption.

[0033] like Figure 5 As shown, the oil-rich heater 3 includes a drive chassis 31, an internal heating tube 34, and an external heating tube 35. A heat insulation cover 32 is fixedly installed on the top of the drive chassis 31, and an operation panel 33 is fixedly installed on the side of the drive chassis 31. The internal heating tube 34 is fixedly installed on the top of the drive chassis 31 and is located inside the heat insulation cover 32. The external heating tube 35 is fixedly installed on the top of the drive chassis 31 and is located on the inner wall inside the heat insulation cover 32.

[0034] The insulation cover 32 has a second oil inlet 36 fixedly connected to the right side of the top, and a second oil outlet 37 fixedly connected to the left side of the top. The two ends of the fixed oil pipe 38 are fixedly connected to the bottom of the second oil inlet 36 and the second oil outlet 37, respectively. The second oil inlet 36 is connected to one end of the second oil inlet pipe 24, and the second oil outlet 37 is connected to one end of the second oil outlet pipe 26.

[0035] The fixed oil pipe 38 is spirally fixed on the top of the driving base 31, is fixed in the heat preservation cover 32, and is located between the internal heating pipe 34 and the external heating pipe 35.

[0036] The fixed oil pipe 38 is spirally arranged in the heat preservation cover 32, and the internal heating pipe 34 and the external heating pipe 35 heat the inner and outer sides of the fixed oil pipe 38 respectively, the time of heating the oil in the fixed oil pipe 38 is prolonged, the oil in the fixed oil pipe 38 is fully heated, the heating of the oil in the fixed oil pipe 38 is more uniform, and the temperature of the oil at the oil outlet 27 can reach above 170 DEG C.

[0037] The working process of the utility model is as follows:

[0038] In the initial state, the communication grooves 215 in the two end turning blocks 214 are respectively communicated with the first oil inlet pipe 23 and the first oil outlet pipe 25, the oil flows into the internal heating furnace 1 from the first oil inlet pipe 23 through the oil inlet 22 and the communication groove 215, and flows out from the oil outlet 27 through the first oil outlet pipe 25 and the communication groove 215, when the internal heating furnace 1 needs to be overhauled, the conversion motor 210 controls the driving bevel gear 211 to rotate, and drives the transmission bevel gear 213 and the transmission shaft 212 to rotate, so that the two end turning blocks 214 rotate in the cavities in the two ends of the fixed pipe 21 respectively, and the communication grooves 215 rotate to the sides of the second oil outlet pipe 26 and the second oil inlet pipe 24, at this time, the oil flows into the oil heater 3 from the second oil inlet pipe 24 through the oil inlet 22 and the communication groove 215, is heated, and is discharged from the oil outlet 27 through the second oil outlet pipe 26, the second oil outlet 37 and the communication groove 215;

[0039] In the heating process of the oil heater 3, the internal heating pipe 34 and the external heating pipe 35 heat the oil in the fixed oil pipe 38 from the inner and outer sides of the fixed oil pipe 38 respectively, the oil flows into the fixed oil pipe 38 through the second oil inlet pipe 24 and the second oil inlet 36, is heated after flowing through the fixed oil pipe 38, and is discharged from the oil outlet 27 through the second oil outlet 37, the second oil outlet pipe 26 and the communication groove 215.

[0040] Finally, it should be pointed out that: the utility model discloses the embodiment in the drawing only relates to the structure involved in the embodiment of the utility model, and other structures can refer to the usual design, and under the condition of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other.

[0041] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A rich oil circulation heating device comprising a tubular heating furnace (1), characterized in that: One side of the tubular heating furnace (1) is provided with an oil-rich heater (3), one side of the top of the oil-rich heater (3) is fixedly installed with a switching device (2), and one side of the top of the tubular heating furnace (1) is fixedly connected with the switching device (2). The switching device (2) comprises a fixed pipe (21), the right end of the fixed pipe (21) is fixedly installed with an oil inlet (22), the right end of the fixed pipe (21) is fixedly communicated with a first oil inlet pipe (23) on the left side, the right end of the fixed pipe (21) is fixedly communicated with a second oil inlet pipe (24) on the right side, the left end of the fixed pipe (21) is fixedly communicated with an oil outlet (27), the left end of the fixed pipe (21) is fixedly communicated with a first oil outlet pipe (25) on the left side, and the right end of the fixed pipe (21) is fixedly communicated with a second oil outlet pipe (26) on the right side.

2. A rich oil circulation heating device according to claim 1, characterized in that: The tubular heating furnace (1) comprises a burner (11), the top of the burner (11) is fixedly installed with a radiation chamber (12), the top of the radiation chamber (12) is fixedly installed with a convection chamber (13), both sides of the top of the convection chamber (13) are fixedly communicated with smoke outlets (14), one end of the convection chamber (13) is fixedly communicated with a first oil inlet (15), the other end of the convection chamber (13) is fixedly communicated with a first oil outlet (16), the first oil inlet (15) is connected with the first oil inlet pipe (23), and the first oil outlet (16) is connected with the first oil outlet pipe (25).

3. The oil-rich cycle heating device of claim 1, wherein: Both ends of the inside of the fixed pipe (21) are provided with cavities, the first oil inlet pipe (23) and the second oil inlet pipe (24) are located on both sides of the right end cavity of the fixed pipe (21), and the positions of the first oil inlet pipe (23) and the second oil inlet pipe (24) correspond, and the first oil outlet pipe (25) and the second oil outlet pipe (26) are located on both sides of the left end cavity of the fixed pipe (21), and the positions of the first oil outlet pipe (25) and the second oil outlet pipe (26) correspond.

4. A rich oil circulation heating device according to claim 3, characterized in that: The inside of the fixed pipe (21) is rotatably installed with a transmission shaft (212), both ends of the transmission shaft (212) are fixedly installed with steering blocks (214), the outer surface of the transmission shaft (212) is fixedly sleeved with a transmission bevel gear (213), the transmission shaft (212) is rotatably installed in the inside of the fixed pipe (21), and the steering blocks (214) at both ends of the transmission shaft (212) are rotatably installed in the interiors of the cavities at both ends of the fixed pipe (21).

5. A rich oil circulation heating device according to claim 4, characterised in that: The inside of the two ends of the steering block (214) is provided with a communication groove (215), the shape of the communication groove (215) is "L", the oil outlet (27) is connected with the first oil outlet pipe (25) and the second oil outlet pipe (26) through the communication groove (215) respectively, the oil inlet (22) is connected with the first oil inlet pipe (23) and the second oil inlet pipe (24) through the communication groove (215) respectively, the side of the fixed pipe (21) is fixedly installed with a conversion motor (210), the output end of the conversion motor (210) is fixedly installed with a driving bevel gear (211), the driving bevel gear (211) is rotatably installed in the inside of the fixed pipe (21), the side of the driving bevel gear (211) is engaged with the side of the transmission bevel gear (213).

6. A rich oil circulation heating device according to claim 5, characterized in that: The oil-rich heater (3) comprises a driving chassis (31), the top of the driving chassis (31) is fixedly installed with a heat preservation cover (32), the side of the driving chassis (31) is fixedly installed with an operation panel (33), the top of the driving chassis (31) is fixedly installed with an internal heating pipe (34), the internal heating pipe (34) is located in the inside of the heat preservation cover (32), the top of the driving chassis (31) is fixedly installed with an external heating pipe (35), the external heating pipe (35) is located on the inner wall in the inside of the heat preservation cover (32).

7. A rich oil circulation heating device according to claim 6, characterized in that: The right side of the top of the heat preservation cover (32) is fixedly communicated with a second oil inlet (36), the left side of the top of the heat preservation cover (32) is fixedly communicated with a second oil outlet (37), the bottom of the second oil inlet (36) and the second oil outlet (37) is fixedly communicated with a fixed oil pipe (38), one end of the second oil inlet (36) is communicated with the second oil inlet pipe (24), one end of the second oil outlet (37) is communicated with the second oil outlet pipe (26).

8. A rich oil circulation heating device according to claim 7, characterized in that: The fixed oil pipe (38) is spirally fixedly installed on the top of the driving chassis (31), the fixed oil pipe (38) is fixedly installed in the inside of the heat preservation cover (32), the fixed oil pipe (38) is located on the outer surface of the internal heating pipe (34), the external heating pipe (35) is located on the outer surface of the fixed oil pipe (38).

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