Actual boiling point distillation instrument

Abstract

The utility model relates to the field of oil refining instruments, and discloses an actual boiling point distillation instrument which comprises a distillation column, a tower top is fixedly installed on the top face of the distillation column, a first installation shell is fixedly installed on the top face of the tower top, and a lower sealing shell is fixedly installed at the end, away from the tower top, of the first installation shell. An upper sealing shell is fixedly installed at the top end of the lower sealing shell through an arranged bolt, external compressed gas can be conveniently sprayed out through an arranged gas spraying head, when the compressed gas is sprayed out, the internal pressure of the lower sealing shell is increased, in this way, a circular connecting ring pushes a plugging pull rod to move upwards under a certain pressure, and the plugging effect is improved. According to the device, through the arrangement of a circular air supply pipeline and an air spraying head, compressed air arranged in a reasonable range from the outside can be sprayed out, so that the internal pressure of the lower sealing shell and the internal pressure of the upper sealing shell are increased, and therefore the auxiliary plugging pull rod can be conveniently opened or closed; and the normal operation of the plugging pull rod is not influenced.

Description

Technical Field

[0001] This application belongs to the technical field of refinery instruments, specifically a true boiling point distillation apparatus. Background Art

[0002] A true boiling point distillation apparatus is an instrument used for the rectification experiment of petroleum products and petrochemical products. It is mainly used to test and analyze the boiling points of the fractions of petroleum products. Through distillation at different temperatures, crude oil or petroleum products are decomposed into different fractions, so as to determine the boiling point ranges of different components. A true boiling point distillation apparatus usually includes a heating device, a distillation column, a condenser, a collection bottle and other components. During the test, the sample is heated to its boiling point and separated through the distillation column inside the device, then cooled by the condenser to liquefy the steam into liquid fractions, and finally collected in the collection bottle. By observing the amount of fractions collected at different temperatures, the boiling point ranges of each component in the sample can be determined, so as to conduct analysis and evaluation.

[0003] For example, in the utility model patent with the publication number CN213995937U, a true boiling point distillation apparatus for crude oil is disclosed, which includes a packed column, a top of the column, a cooling pipe and a water cooling pipe. The top of the column is respectively communicated with the packed column, the cooling pipe and the water cooling pipe. A branch pipe is connected to the side of the water cooling pipe, and a needle valve is installed on the branch pipe. A ball valve is installed in the vertical direction of the water cooling pipe. The true boiling point distillation apparatus for crude oil provided by the present utility model can effectively solve the problem that the solenoid valve of the true boiling point distillation apparatus for crude oil cannot lift the pull rod. The operation is safe and reliable, the steps are simple, the time consumption is short, the effect of solving the adhesion of the pull rod is good, it can protect the operation equipment and the safety of the operator, prevent the damage of the equipment, ensure the smooth operation of the equipment, and ensure the timely and smooth progress of the crude oil evaluation work.

[0004] However, it is found in the actual use process that: this device is transformed by adding a needle valve and a ball valve to the water cooling pipe. When the pull rod cannot be pulled up, the ball valve is in the closed state, cutting off the connection between the water cooling pipe and the oil product receiving system, and slowly opening the needle valve to connect the air, so as to form an upward continuously increasing pressure difference under the pull rod, which is convenient for pulling up the pull rod;

[0005] But when the pull rod of this device is pulled up, the connection between the water cooling pipe and the oil product receiving system is interrupted, which will affect the flow of the water and oil product mixture. Moreover, after the connection between the water cooling pipe and the oil product receiving system is interrupted, there will be a mixture of water and oil product remaining inside the water cooling pipe, which makes it impossible for the outside air to enter the inside of the water cooling pipe well. Therefore, a true boiling point distillation apparatus is provided. Utility Model Content

[0006] The purpose of this application is to provide a true boiling point distillation apparatus to solve the above-mentioned problems.

[0007] The technical solution adopted in this application is as follows: a true boiling point distillation apparatus, including a distillation column, on the top surface of the distillation column, a top tower is fixedly installed, on the top surface of the top tower, a first installation housing is fixedly installed, at one end of the first installation housing away from the top tower, a lower sealing housing is fixedly installed, at the top end of the lower sealing housing, an upper sealing housing is fixedly installed through bolts provided, on the top surface of the upper sealing housing, a second installation housing is fixedly installed, plugging pull rods are arranged inside both the second installation housing and the first installation housing, on the outer surface of the plugging pull rod, a circular connection ring is fixedly installed, inside the lower sealing housing and the upper sealing housing respectively, circular air supply pipes are fixedly installed, on one side of the circular air supply pipe close to the circular connection ring, a plurality of jet nozzles are installed at equal intervals in an array, on the outer surface of the circular air supply pipe, a U-shaped air supply pipe is fixedly installed, one end of the U-shaped air supply pipe extends to the outside of the lower sealing housing and the upper sealing housing, on the outer surface of the U-shaped air supply pipe, a connecting pipe is fixedly installed, and on the outer surface of the connecting pipe, a flange connection disk is fixedly installed.

[0008] In a preferred embodiment, sealing circular gaskets are respectively fixedly installed on the inner wall surfaces of the first installation housing and the second installation housing.

[0009] In a preferred embodiment, pressure relief pipes are respectively fixedly installed on the outer surfaces of the lower sealing housing and the upper sealing housing.

[0010] In a preferred embodiment, a cooling water pipe is fixedly installed on the outer surface of the top tower.

[0011] In a preferred embodiment, two oil and gas discharge pipes are fixedly installed on the outer surface of the top tower.

[0012] In a preferred embodiment, two manual control valves are fixedly installed on the outer surface of the U-shaped air supply pipe.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are as follows:

[0014] 1. In this application, due to the adoption of the above solution, the compressed gas from the outside enters the inside of the circular air supply pipe installed inside the lower sealing housing through the connecting pipe and the U-shaped air supply pipe. At this time, through the provided jet nozzles, it is convenient to eject the compressed gas. When the compressed gas is ejected, the pressure inside the lower sealing housing will increase. In this way, the circular connection ring will push the plugging pull rod upward under a certain pressure, so as to facilitate the opening of the plugging pull rod. When the plugging pull rod is opened, at this time, the operator can discharge the pressure inside the lower sealing housing through the pressure relief pipe. This device can eject the compressed gas set within a reasonable range from the outside through the provided circular air supply pipe and jet nozzles to increase the pressure inside the lower sealing housing and the upper sealing housing, so as to facilitate the opening or closing of the plugging pull rod, and will not affect the normal operation of the plugging pull rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present application;

[0016] Figure 2 is a schematic diagram of the internal structure of the first installation housing of the present application;

[0017] Figure 3 of the present application Figure 2 is an enlarged schematic diagram of the structure at A in

[0018] Figure 4 is a top view schematic diagram of the circular gas supply pipeline of the present application.

[0019] Reference numerals in the figures: 1, distillation column; 2, top of the column; 3, first installation housing; 4, lower sealing housing; 5, upper sealing housing; 6, second installation housing; 7, plugging tie rod; 8, circular connecting ring; 9, circular gas supply pipeline; 10, jet head; 11, U-shaped gas supply pipe; 12, connecting pipe; 13, sealing circular gasket; 14, pressure relief pipeline; 15, cooling water pipeline; 16, oil and gas discharge pipeline; 17, manual control valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.

[0021] Refer to Figure 1 and Figure 2, True Boiling Point Distillation Apparatus, including a distillation column 1. At the top surface of the distillation column 1, a top tower 2 is fixedly installed. On the outer surface of the top tower 2, a cooling water pipe 15 is fixedly installed, and two oil and gas discharge pipes 16 are fixedly installed on the outer surface of the top tower 2; The distillation column 1 (i.e., a packed tower) increases the surface area of the medium through the filler and the contact between the liquid and the gas, realizing the fractionation and purification between different components, so as to facilitate the separation and purification of the subsequent liquid mixture. The liquid raw material enters its interior from the bottom of the distillation column 1. Then, the distillation column 1 is filled with packing. The role of the packing is to increase the surface area and promote the contact and mass transfer between the liquid and the gas. In the packed tower, when the liquid passes through the packing, it contacts the rising gas, and mass transfer and fractionation occur. It is cooled through the provided cooling water pipe 15 and is converted from gas to liquid during the cooling process, thereby obtaining a pure product. The flow rate and temperature of the cooling water affect the cooling effect. During the cooling process, the oil and gas will naturally drop and be partially discharged from the top tower 2 through the oil and gas discharge pipe 16, and finally the separated product is obtained.

[0022] Reference Figure 1 、 Figure 2 And Figure 3 , At the top surface of the top tower 2, an installation housing one 3 is fixedly installed. At one end of the installation housing one 3 away from the top tower 2, a lower sealing housing 4 is fixedly installed. The top end of the lower sealing housing 4 is fixedly installed with an upper sealing housing 5 through the provided bolts. At the top surface of the upper sealing housing 5, an installation housing two 6 is fixedly installed; Through the provided lower sealing housing 4 and upper sealing housing 5, it is convenient to form an integral protection housing. A sealing gasket is provided between the lower sealing housing 4 and the upper sealing housing 5, which can further improve the sealing effect.

[0023] Reference Figure 1 、 Figure 2 And Figure 3 , Inside both the installation housing two 6 and the installation housing one 3, a plugging pull rod 7 is provided. On the outer surface of the plugging pull rod 7, a circular connecting ring 8 is fixedly installed. The circular connecting ring 8 is in contact with and slidably connected to the lower sealing housing 4 and the upper sealing housing 5. Sealing circular gaskets 13 are respectively fixedly installed on the inner wall surfaces of the installation housing one 3 and the installation housing two 6; A circular exhaust hole is opened at the top of the top tower 2. The bottom end of the plugging pull rod 7 is inserted into the interior of the circular exhaust hole to block it. The opening and closing of the plugging pull rod 7 can control the discharge of steam and the flow of gas, regulating and controlling the distillation process. An electromagnetic valve is installed on the top surface of the installation housing two 6. The top end of the plugging pull rod 7 can be magnetically connected to the electromagnetic valve or a connecting device is added to the valve core or valve of the electromagnetic valve to be connected to the plugging pull rod 7. In this way, it is convenient for the electromagnetic valve to drive the plugging pull rod 7 to move up and down. A glass cap is provided on the top of the electromagnetic valve. Through the provided sealing circular gaskets 13, it is convenient to seal the interiors of the installation housing one 3 and the installation housing two 6, so that steam will not enter the interiors of the installation housing one 3 and the installation housing two 6.

[0024] Reference Figure 1 、 Figure 2 and Figure 4 ,Inside the lower sealing housing 4 and the upper sealing housing 5, circular air supply pipes 9 are respectively fixedly installed. On one side of the circular air supply pipe 9 close to the circular connecting ring 8, a plurality of air jet nozzles 10 are installed at equal intervals in an array; through the provided circular air supply pipe 9, it is convenient to install a plurality of air jet nozzles 10, and it is convenient for subsequent air to enter the inside of the circular air supply pipe 9 and be ejected through the plurality of air jet nozzles 10. A sealing ring is installed on the outer surface of the circular connecting ring 8, which can improve the sealing performance between the circular connecting ring 8 and the lower sealing housing 4 and the upper sealing housing 5.

[0025] Reference Figure 1 、 Figure 2 and Figure 3 ,A U-shaped air supply pipe 11 is fixedly installed on the outer surface of the circular air supply pipe 9. One end of the U-shaped air supply pipe 11 extends to the outside of the lower sealing housing 4 and the upper sealing housing 5. A connecting pipe 12 is fixedly installed on the outer surface of the U-shaped air supply pipe 11. Two manual control valves 17 are fixedly installed on the outer surface of the U-shaped air supply pipe 11. A flange connecting disc is fixedly installed on the outer surface of the connecting pipe 12; the connecting pipe 12 is connected to the external air supply pipe through the flange connecting disc. In this way, it is convenient for the gas with a certain pressure from the outside to enter the inside of the circular air supply pipe 9 through the connecting pipe 12 and the U-shaped air supply pipe 11 and be ejected through the plurality of air jet nozzles 10. By ejecting the compressed gas through the air jet nozzles 10, it is convenient to assist in pushing the plugging pull rod 7 upward or downward, and it is convenient to open or close the plugging pull rod 7;

[0026] There are two manual control valves 17 installed on the U-shaped air supply pipe 11. In the application, the manual control valve 17 for controlling the on / off of the circular air supply pipe 9 inside the upper sealing housing 5 is temporarily described as manual control valve 17 one, and the manual control valve 17 for controlling the on / off of the circular air supply pipe 9 inside the lower sealing housing 4 is described as manual control valve 17 two.

[0027] Reference Figure 1 、 Figure 2 ,Relief pipes 14 are respectively fixedly installed on the outer surfaces of the lower sealing housing 4 and the upper sealing housing 5; through the provided relief pipes 14, when it is not necessary to assist the plugging pull rod 7 to move upward or downward, the compressed gas inside the lower sealing housing 4 and the upper sealing housing 5 can be discharged for pressure relief operation.

[0028] The implementation principle of the actual boiling point distillation instrument embodiment of this application is as follows: When the solenoid valve cannot drive the plugging pull rod 7 to move upward and open during normal operation, at this time, the operator first connects the connecting pipe 12 to the external compressed gas pipeline, and then closes the manual control valve 17 and opens the manual control valve 17 two at the same time, so that the external compressed gas enters the inside of the circular gas supply pipeline 9 installed inside the lower sealing housing 4 through the connecting pipe 12 and the U-shaped gas supply pipe 11. At this time, through the provided jet head 10, it is convenient to eject the compressed gas. When the compressed gas is ejected, the pressure inside the lower sealing housing 4 will increase, so that the circular connecting ring 8 pushes the plugging pull rod 7 to move upward under a certain pressure, thus facilitating the opening of the plugging pull rod 7. After the plugging pull rod 7 is opened, at this time, the operator can discharge the pressure inside the lower sealing housing 4 through the pressure relief pipe 14. The device has a simple structure and is convenient to operate. Through the provided circular gas supply pipeline 9 and jet head 10, the compressed gas set outside within a reasonable range can be ejected to increase the pressure inside the lower sealing housing 4 and the upper sealing housing 5, so as to facilitate the opening or closing of the plugging pull rod 7, and it will not affect the normal operation of the plugging pull rod 7, improving the convenience.

[0029] The above embodiments are only used to illustrate the technical solutions of this application, rather than to limit it; although this application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of each embodiment of this application.

Claims

1. A true boiling point distiller, comprising a distillation column (1), characterized in that: The top surface of the distillation column (1) is fixedly mounted with a tower top (2), the top surface of the tower top (2) is fixedly mounted with a mounting shell (3), the end of the mounting shell (3) away from the tower top (2) is fixedly mounted with a lower sealing shell (4), the top of the lower sealing shell (4) is fixedly mounted with an upper sealing shell (5) by means of bolts, the top surface of the upper sealing shell (5) is fixedly mounted with a mounting shell (6), the mounting shell (6) and the mounting shell (3) are both internally provided with a plugging rod (7), and the outer surface of the plugging rod (7) is fixedly mounted with a circular connecting ring (8) , circular air supply pipes (9) are fixedly installed inside the lower sealed shell (4) and the upper sealed shell (5), respectively, and a plurality of nozzles (10) are installed in an array at equal intervals on a side of the circular air supply pipe (9) close to the circular connecting ring (8), and a U-shaped air supply pipe (11) is fixedly installed on the outer surface of the circular air supply pipe (9), one end of the U-shaped air supply pipe (11) extends to the outside of the lower sealed shell (4) and the upper sealed shell (5), and a connecting pipe (12) is fixedly installed on the outer surface of the U-shaped air supply pipe (11), and a flange connecting plate is fixedly installed on the outer surface of the connecting pipe (12).

2. The true boiling point distiller according to claim 1, wherein: The inner wall surfaces of the installation shell 1 (3) and the installation shell 2 (6) are respectively fixedly mounted with sealing circular gaskets (13).

3. The true boiling point distiller according to claim 1, wherein: Pressure relief pipes (14) are fixedly mounted on the outer surfaces of the lower sealing shell (4) and the upper sealing shell (5).

4. The true boiling point distiller according to claim 1, wherein: A cooling water pipeline (15) is fixedly installed on the outer surface of the tower top (2).

5. The true boiling point distiller according to claim 1, characterized in that: Two oil and gas discharge pipes (16) are fixedly mounted on the outer surface of the tower top (2).

6. The true boiling point distiller according to claim 1, characterized in that: Two manual control valves (17) are fixedly mounted on the outer surface of the U-shaped air supply pipe (11).

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