Delayed coking pilot plant

Abstract

The utility model relates to the technical field of coking pilot plant, and discloses a delayed coking pilot plant which comprises a tank body, a shell is fixedly assembled at the top of the tank body, a feeding pipe penetrates through the top of the tank body, and an exhaust pipe I and an exhaust pipe II are fixedly assembled on the outer wall of the shell respectively. And thermal converters are fixedly assembled at the tail ends of the first exhaust pipe and the second exhaust pipe correspondingly, heating furnaces are arranged on the outer walls of the thermal converters, and air holes are formed in the two sides of the shell correspondingly. Through the arrangement of the tank body, the heating furnace, the thermal converter, the gear and the stirring rod, the stirring rod drives the stirring blades to rotate through the rotation of the gear in the operation process of the pilot plant, so that materials are distributed more uniformly after entering the tank body; and therefore, the situation that the coking degree is serious after heating due to accumulation of the materials is avoided, and the production efficiency and the practicability of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coking pilot plants, in particular to a delayed coking pilot plant. Background Art

[0002] The coking reaction is to heat crude oil and use the reactants to react chemically with the crude oil to extract internal production factors. Usually, the coking reaction is achieved through a pipeline system and a heating furnace.

[0003] The raw materials are not stirred and the materials are uneven, resulting in unstable feed volume, which is easy to clog the pipeline and pump head, resulting in flow interruption. When the raw material pump has no flow, the entire pilot system becomes unstable. The pump can only be stopped to purge the pipeline with nitrogen, and then the feed is re-fed. During the feeding process, the heating furnace tube maintains a high temperature throughout the process, resulting in increased coking of the material remaining in the furnace tube. The system pressure is too high and the experiment is forced to stop, thereby reducing the production efficiency of the equipment. For this reason, we proposed a delayed coking pilot device. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a delayed coking pilot plant, which has the advantages of strong practicability, high operating efficiency, and heat energy recovery, and solves the problems raised by the above-mentioned background technology.

[0005] The utility model provides the following technical scheme: a delayed coking pilot device, comprising a tank body, a shell fixedly mounted on the top of the tank body, a feed pipe passing through the top of the tank body, an exhaust pipe 1 and an exhaust pipe 2 fixedly mounted on the outer wall of the shell respectively, a heat converter fixedly mounted at the ends of the exhaust pipe 1 and the exhaust pipe 2, a heating furnace provided on the outer wall of the heat converter, air holes provided on both sides of the shell, a one-way valve 1 and a one-way valve 2 fixedly mounted on the inner walls of the two air holes respectively, an air groove provided on the inner wall of the two air holes, a piston rod 2 slidably connected to the inner wall of the air groove, a gear provided in the middle of the shell, a piston rod 1 meshed on the outer wall of the gear, a stirring rod fixedly mounted on the bottom of the gear, an air outlet pipe 1 provided on the front of the shell, an air outlet pipe 2 provided on the back of the shell, and an air inlet pipe passing through the top of the shell.

[0006] As a preferred technical solution of the utility model: a through hole is opened on the outer wall of the shell, and the inner wall of the through hole is fixedly assembled with the outer wall of the air outlet pipe one, the number of the air outlet pipes one is two, and the inner walls of the two air outlet pipes one are respectively provided with solenoid valve one and solenoid valve two, a controller is opened on the outer wall of the tank body, and a speed sensor is fixedly assembled on the bottom of the inner wall of the tank body, and the controller is electrically connected to the speed sensor and the heat converter respectively.

[0007] As a preferred technical solution of the utility model: the outer walls of the piston rod 1 and the piston rod 2 are both provided with tooth grooves, and the inner walls of the tooth grooves are meshed with the outer walls of the gears, and the bottom end of the stirring rod is fixedly equipped with a stirring blade.

[0008] As a preferred technical solution of the utility model: the outer wall of the heating furnace is fixedly assembled with the outer wall of the heat converter, and the position of the air outlet of the heating furnace corresponds to the position of the air inlet of the heat converter.

[0009] As a preferred technical solution of the utility model: a rotation groove is opened in the middle of the shell, and the bottom of the inner wall of the rotation groove is rotatably connected to the outer wall of the gear.

[0010] As an optimal technical solution of the utility model: both ends of the piston rod 1 and the piston rod 2 are filled with high-temperature air, and the outer walls of the piston rod 1 and the piston rod 2 are fixedly sleeved with sealing rings.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The delayed coking pilot device, through the tank body, heating furnace, heat converter, gear, and stirring rod structure, makes the pilot device use the rotation of the gear to drive the stirring rod to rotate the stirring blade during operation, so that the material is distributed more evenly after entering the tank body, thereby avoiding the accumulation of materials and causing serious coking after heating, thereby improving the production efficiency and practicality of the device.

[0013] 2. The delayed coking pilot device, through the set air groove, piston rod one, exhaust pipe one, exhaust pipe two, piston rod two, outlet pipe one, outlet pipe two, inlet pipe, gear, one-way valve one, one-way valve two structures, the energy for the operation of the equipment comes from the high-temperature exhaust gas generated by the heating furnace, and the high-temperature air is transported to the outer shell through the exhaust pipe one and the exhaust pipe two, so that the thermal expansion and contraction effect is used to make the high-temperature air simultaneously apply thrust to the piston rod one and the piston rod two, so that both of them generate torque force on the gear, so that the gear drives the stirring rod to rotate, realizes the effect of heat recovery, and thus improves the energy utilization rate of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the heat pipe structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the gear structure of the utility model

[0018] Figure 5 This is a schematic diagram of the gas tank structure of the utility model.

[0019] In the figure: 1. tank body; 2. outer shell; 3. feed pipe; 4. heating furnace; 5. heat converter; 6. exhaust pipe 1; 7. exhaust pipe 2; 8. stirring rod; 9. outlet pipe 1; 10. outlet pipe 2; 11. inlet pipe; 12. gear; 13. piston rod 1; 14. piston rod 2; 15. one-way valve 1; 16. one-way valve 2; 17. air groove; 18. air hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5 A delayed coking pilot plant comprises a tank body 1, a shell 2 is fixedly mounted on the top of the tank body 1, a feed pipe 3 is passed through the top of the tank body 1, an exhaust pipe 1 6 and an exhaust pipe 2 7 are fixedly mounted on the outer wall of the shell 2, a heat converter 5 is fixedly mounted at the ends of the exhaust pipe 1 6 and the exhaust pipe 2 7, a heating furnace 4 is arranged on the outer wall of the heat converter 5, air holes 18 are arranged on both sides of the shell 2, a one-way valve 15 and a one-way valve 2 16 are fixedly mounted on the inner walls of the two air holes 18, an air groove 17 is arranged on the inner walls of the two air holes 18, a piston rod 2 14 is slidably connected to the inner wall of the air groove 17, a gear 12 is arranged in the middle of the shell 2, a piston rod 13 is meshed on the outer wall of the gear 12, a stirring rod 8 is fixedly mounted on the bottom of the gear 12, an air outlet pipe 1 9 is arranged on the front of the shell 2, an air outlet pipe 2 10 is arranged on the back of the shell 2, and an air inlet pipe 11 is passed through the top of the shell 2.

[0022] In the above structure, the heating furnace 4, heat converter 5, exhaust pipe 1 6, exhaust pipe 2 7, and outer shell 2 are arranged, so that during the operation of the device, the heat of the high-temperature exhaust gas generated by the incineration operation is heated by the heating furnace 4. After the heat conversion operation of the heat converter 5, the high-temperature air is transported to the outer shell 2 through the exhaust pipe 1 6 and the exhaust pipe 2 7, so that the piston rod 1 13 and the piston rod 2 14 are both pushed to engage with the gear 12, thereby achieving the effect of stirring the material by the stirring blades, thereby ensuring a more even distribution of the material after entering the tank body 1, reducing the probability of the material being coked.

[0023] In a preferred embodiment: a through hole is opened on the outer wall of the shell 2, and the inner wall of the through hole is fixedly assembled with the outer wall of the air outlet pipe 9, the number of the air outlet pipes 9 is two, and the inner walls of the two air outlet pipes 9 are respectively provided with a solenoid valve 1 and a solenoid valve 2, a controller is opened on the outer wall of the tank body 1, and a speed sensor is fixedly assembled on the bottom of the inner wall of the tank body 1, and the controller is electrically connected to the speed sensor and the heat converter 5 respectively.

[0024] In the above structure, through the set through hole, air outlet pipe 1 9, solenoid valve 1, solenoid valve 2, speed sensor and controller structure, when the shell 2 is filled with high-temperature air, the speed sensor is used to sense the speed of the stirring rod 8. When the speed is zero, it is proved that pressure relief is needed to ensure the continuous rotation of the gear 12 and the reset movement of the piston rod 13 and the piston rod 2 14. The controller automatically controls the solenoid valve 1 and the solenoid valve 2 to open and close alternately, so that the high-temperature air is discharged and discharged synchronously, thereby ensuring the normal operation of the device and improving the precise matching of the individual accessories in the device.

[0025] In a preferred embodiment, the outer walls of the piston rod 13 and the piston rod 2 14 are both provided with tooth grooves, and the inner walls of the tooth grooves are meshed with the outer wall of the gear 12 , and the bottom end of the stirring rod 8 is fixedly equipped with a stirring blade.

[0026] In the above structure, through the tooth groove and gear 12 structure, when the piston rod 13 and the piston rod 2 14 are pushed by the high-temperature air, the thermal expansion and contraction effect is used to increase the air pressure, so that the piston rod 13 and the piston rod 2 14 generate force on the gear 12, thereby ensuring that the gear 12 can rotate even when the material is filled with a lot, thereby improving the smoothness of the device during operation.

[0027] In a preferred embodiment, the outer wall of the heating furnace 4 is fixedly assembled with the outer wall of the heat converter 5 , and the position of the air outlet of the heating furnace 4 corresponds to the position of the air inlet of the heat converter 5 .

[0028] In the above structure, through the setting of the heating furnace 4 and the heat converter 5 structure, the heating furnace 4 can provide thermal energy for the calcination of the material, and high-temperature exhaust gas will be generated during the operation. The heat conversion operation of the heat converter 5 allows the cold air to expand due to the heat, thereby providing thermal energy to the tank body 1, thereby realizing the role of heat energy recovery and utilization, and further improving the energy utilization rate of the device.

[0029] In a preferred embodiment, a rotation groove is opened in the middle of the housing 2 , and the bottom of the inner wall of the rotation groove is rotationally connected to the outer wall of the gear 12 .

[0030] In the above structure, by setting the rotating groove and gear 12 structure, the rotating groove can provide a movable space for the gear 12 to ensure that the gear 12 can rotate during the movement of the piston rod 13 and the piston rod 2 14 to drive the stirring rod 8 to rotate, thereby ensuring the stirring effect of the stirring blade on the material, and further improving the precise matching of the various accessories in the device.

[0031] In a preferred embodiment: both ends of the piston rod 1 13 and the piston rod 2 14 are filled with high-temperature air, and the outer walls of the piston rod 1 13 and the piston rod 2 14 are fixedly sleeved with sealing rings.

[0032] In the above structure, through the set air groove 17 and air hole 18 structure, when the exhaust pipe 27 is conveying high-temperature air, the solenoid valve 1 is in a closed state, so that the high-temperature air quickly fills the space between the piston rod 2 14 and the air groove 17, generating thrust for the piston rod 2 14, and at the same time, the high-temperature air between the end of the piston rod 2 14 away from the exhaust pipe 27 and the air groove 17 will pass through the air hole 18 and the one-way valve 2 16 to fill the space between the piston rod 1 13 and the air groove 17, and cooperate with the synchronous conveyance of the high-temperature air by the intake pipe 11, so that the piston rod 1 13 and the piston rod 2 14 move toward each other, so that the gear 12 rotates smoothly, and the exhaust gas between the end of the piston rod 13 close to the outlet pipe 2 10 and the air groove 17 will be discharged through the opening of the solenoid valve 2, ensuring that the subsequent operation of the device will not be disturbed, and the sealing ring can isolate the high-temperature air to ensure the air tightness of the piston rod 1 13 and the piston rod 2 14 to the high-temperature air during the operation of the equipment.

[0033] Working principle: First, the user connects the tank body 1 to the heating furnace 4 through the exhaust pipe 1 6 and the exhaust pipe 2 7 and the heat converter 5, and then directly puts the material into the tank body 1 through the feed pipe 3. Then, the heating furnace 4 heats up the environment inside the tank body 1, and at this time, the exhaust gas is converted by the heat converter 5 to allow high-temperature air to enter the shell 2. The specific process is as follows: when the exhaust pipe 2 7 is conveying high-temperature air, the solenoid valve 1 is in a closed state, so that the high-temperature air quickly fills the space between the piston rod 2 14 and the air groove 17, and the piston rod The second solenoid valve 14 generates thrust, and at the same time, the high-temperature air between the end of the piston rod 14 away from the exhaust pipe 27 and the air groove 17 will fill the space between the piston rod 13 and the air groove 17 through the air hole 18 and the one-way valve 2 16, and cooperate with the synchronous delivery of the high-temperature air by the intake pipe 11, so that the piston rod 13 and the piston rod 2 14 move towards each other, allowing the gear 12 to rotate smoothly, and the exhaust gas between the end of the piston rod 13 close to the outlet pipe 2 10 and the air groove 17 will be discharged through the opening of the solenoid valve 2, ensuring that the subsequent operation of the device will not be disturbed.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A delayed coking pilot plant, comprising a tank (1), Features: The top of the tank body (1) is fixedly equipped with an outer shell (2), the top of the tank body (1) is penetrated by a feed pipe (3), the outer wall of the outer shell (2) is respectively fixedly equipped with an exhaust pipe 1 (6) and an exhaust pipe 2 (7), the ends of the exhaust pipe 1 (6) and the exhaust pipe 2 (7) are both fixedly equipped with a heat converter (5), the outer wall of the heat converter (5) is provided with a heating furnace (4), both sides of the outer shell (2) are provided with air holes (18), and the inner walls of the two air holes (18) are respectively fixedly equipped with a one-way valve 1 (15) and a one-way valve 2 (16). Two (16), the inner walls of the two air holes (18) are both provided with air grooves (17), the inner walls of the air grooves (17) are slidably connected with piston rods two (14), a gear (12) is provided in the middle of the shell (2), the outer wall of the gear (12) is meshed with a piston rod one (13), the bottom of the gear (12) is fixedly equipped with a stirring rod (8), the front of the shell (2) is provided with an air outlet pipe one (9), the back of the shell (2) is provided with air outlet pipes two (10), and the top of the shell (2) is penetrated by an air inlet pipe (11).

2. A delayed coking pilot plant according to claim 1, Features: The outer wall of the shell (2) is provided with a through hole, and the inner wall of the through hole is fixedly assembled with the outer wall of the outlet pipe (9), the number of the outlet pipes (9) is two, and the inner walls of the two outlet pipes (9) are respectively provided with a solenoid valve (1) and a solenoid valve (2), the outer wall of the tank body (1) is provided with a controller, and the bottom of the inner wall of the tank body (1) is fixedly equipped with a speed sensor, and the controller is electrically connected to the speed sensor and the heat converter (5) respectively.

3. A delayed coking pilot plant according to claim 1, Features: The outer walls of the piston rod 1 (13) and the piston rod 2 (14) are both provided with tooth grooves, and the inner walls of the tooth grooves mesh with the outer wall of the gear (12). The bottom end of the stirring rod (8) is fixedly equipped with a stirring blade.

4. A delayed coking pilot plant according to claim 1, Features: The outer wall of the heating furnace (4) is fixedly assembled with the outer wall of the heat converter (5), and the position of the air outlet of the heating furnace (4) corresponds to the position of the air inlet of the heat converter (5).

5. A delayed coking pilot plant according to claim 1, Features: A rotation groove is provided in the middle of the housing (2), and the bottom of the inner wall of the rotation groove is rotationally connected to the outer wall of the gear (12).

6. A delayed coking pilot plant according to claim 1, Features: Both ends of the piston rod 1 (13) and the piston rod 2 (14) are filled with high-temperature air, and the outer walls of the piston rod 1 (13) and the piston rod 2 (14) are fixedly sleeved with sealing rings.

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