Fractionation device for chemical oil refining

Abstract

The utility model discloses a chemical oil refining fractionation device, which belongs to the technical field of chemical oil refining and comprises a tower body, a filtering mechanism, a separating mechanism, a tower plate and a condensing mechanism, the filtering mechanism is arranged above the tower body, the separating mechanism is arranged below the filtering mechanism, the separating mechanism comprises a first separating plate and a second separating plate, the tower plates are located below the separating mechanism and are vertically and uniformly arranged, one end of each tower plate is fixedly connected with a downcomer bin, and the other end of each tower plate is fixedly connected with a second separating plate. The crude oil filtering device has the advantages that solid impurities in crude oil can be filtered through the filtering mechanism, and the filtered impurities can be continuously discharged; 2, a plurality of layers of tower plates are arranged, and a liquid falling bin is arranged for oil liquid to flow from top to bottom, so that the oil liquid is heated and fractionated on each layer of tower plate, the heating area is increased, and the fractionation efficiency is improved; and 3, a fractionation mechanism is arranged between the tower plate and the filtering mechanism, so that all generated gas enters a condensation mechanism to be condensed and liquefied.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of chemical oil refining, and particularly relates to a chemical oil refining fractionating device. BACKGROUND

[0002] Oil refining is a process of distilling crude oil or other oil without changing the molecular structure. In the process of oil refining, crude oil must go through a series of processing to obtain useful petroleum products.

[0003] The fractionating device is one of the most important equipment in the oil refinery, and its core function is to separate the mixture produced in the oil refining process into pure components with different boiling points through the fractionation process. The basic principle of the oil refining fractionating device is to use the difference in boiling points of each component in the mixture. By heating, the low-boiling components are evaporated first, and then condensed into liquid, thereby realizing the separation of components.

[0004] In the prior art, during the fractionation of crude oil, the crude oil is input from the top of the fractionating tower. The tower plate is provided in the fractionating tower for heating. The components to be separated are vaporized and discharged through the heating of the tower plate. However, there are the following problems:

[0005] Firstly, the crude oil generally contains a large amount of solid impurities, which will affect the fractionation effect.

[0006] Secondly, the heating area of the tower plate is limited, resulting in a low fractionation speed.

[0007] Thirdly, during the fractionation process, the generated gas is easily discharged from the top of the feed inlet. UTILITY MODEL CONTENT

[0008] To solve the above problems, the utility model provides a chemical oil refining fractionating device. The utility model is realized by the following technical solutions.

[0009] The utility model relates to a chemical oil refining fractionating device, including tower body, filter mechanism, separation mechanism, tray and condensing mechanism, the top board left side of tower body is fixedly connected with the feed inlet, and the left side plate bottom of tower body is fixedly connected with the discharge pipe, the discharge pipe is fixedly connected with the manual valve, the filter mechanism sets up the top of tower body, the separation mechanism sets up the below of filter mechanism, and the separation mechanism includes first separation board and second separation board, first separation board and second separation board are fixedly connected between the front and back side plates of tower body, first separation board is inverted U shape, second separation board is L shape, and second separation board is symmetrically set up left and right, and the side plate of first separation board and second separation board is staggered, and there is a gap between first separation board and second separation board, the tray is fixedly connected in tower body and is located the below of separation mechanism, and the tray is vertically and uniformly arranged, one end of tray is fixedly connected with the liquid fall bin, and the liquid fall bin on the upper and lower two layers of tray is staggered arrangement, and the tray is resistance heating plate, the center of first separation board is fixedly connected with the air outlet pipe, and the center of each tray except the bottom layer is also fixedly connected with the air outlet pipe, the air outlet pipe extends through the back side plate of tower body, and the head of air outlet pipe is connected with condensing mechanism.

[0010] Preferably, the filter mechanism comprises an arc-shaped screen, a rotating shaft and a motor; the arc-shaped screen is fixedly connected above the tower body, and two ends of the arc-shaped screen are respectively fixedly connected with a first material guide plate and a second material guide plate; a waste outlet is formed in the right side plate of the tower body at a position corresponding to the second material guide plate; the rotating shaft is rotatably connected at the center of the arc-shaped screen, and a screen plate is fixedly connected to the rotating shaft; a rack is fixedly connected to the back side of the tower body; and the motor is fixedly connected to the lower surface of the rack, and the output shaft of the motor is connected to the rotating shaft through a shaft coupling.

[0011] Preferably, the rotating shaft is circumferentially and uniformly fixedly connected with screen plates.

[0012] Preferably, the condensing mechanism comprises a condensing pipe, a cover pipe and a cooling water tank; the head of the air outlet pipe is fixedly connected with the condensing pipe, the head of the condensing pipe is inserted into the collecting tank, the cover pipe is fixedly connected outside the condensing pipe, the cooling water tank contains condensing water, a circulating pump is fixedly connected to the cooling water tank, the inlet and outlet of the circulating pump are respectively fixedly connected with a water inlet pipe and a water outlet pipe, the head of the water inlet pipe is inserted into the bottom of the cooling water tank, the head of the water outlet pipe is fixedly connected with the lower right side of the cover pipe, a backflow pipe is fixedly connected to the upper left side of the cover pipe, and the head of the backflow pipe is inserted into the bottom of the cooling water tank.

[0013] Preferably, the upper surface of the bottom plate of the tower body is downwardly inclined from right to left.

[0014] The utility model discloses a chemical oil refining fractionating device, including tower body, filter mechanism, separation mechanism, tray and condensing mechanism, the top board left side of tower body is fixedly connected with the feed inlet, and the left side plate bottom of tower body is fixedly connected with the discharge pipe, the discharge pipe is fixedly connected with the manual valve, the filter mechanism sets up the top of tower body, the separation mechanism sets up the below of filter mechanism, and the separation mechanism includes first separation board and second separation board, first separation board and second separation board are fixedly connected between the front and back side plates of tower body, first separation board is inverted U shape, second separation board is L shape, and second separation board is symmetrically set up left and right, and the side plate of first separation board and second separation board is staggered, and there is a gap between first separation board and second separation board, the tray is fixedly connected in tower body and is located the below of separation mechanism, and the tray is vertically and uniformly arranged, one end of tray is fixedly connected with the liquid fall bin, and the liquid fall bin on the upper and lower two layers of tray is staggered arrangement, and the tray is resistance heating plate, the center of first separation board is fixedly connected with the air outlet pipe, and the center of each tray except the bottom layer is also fixedly connected with the air outlet pipe, the air outlet pipe extends through the back side plate of tower body, and the head of air outlet pipe is connected with condensing mechanism.

[0015] 1、the filter mechanism is arranged on the top of the tower body, and the filter mechanism can filter solid impurities in crude oil, and the filtered impurities can be continuously discharged, which improves the purity of crude oil and does not affect the fractionating process.

[0016] 2、 Set multilayer tower plate, and set with the liquid drop bin for oil liquid from top to top flow, oil liquid is heated and fractionated on each layer tower plate, improve the heating area, to improve the efficiency of fractionation.

[0017] 3、 The tower plate and the filter mechanism are provided with fractionation mechanism, so that the generated gas enters the condensation mechanism for condensation and liquefaction. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the present application, the following will briefly introduce the drawings needed to be used in the specific implementation manner, obviously, the drawings described in the following are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the premise of the drawings.

[0019] Figure 1 The transverse sectional view of the chemical oil refining fractionation device is shown in the utility model.

[0020] Figure 2 : Figure 1 The local enlarged view of A shown in the figure.

[0021] Figure 3 The longitudinal sectional view of the chemical oil refining fractionation device is shown in the utility model.

[0022] Figure 4 : Figure 3 The local enlarged view of B shown in the figure.

[0023] The reference signs are as follows:

[0024] 1-tower body, 11-feed inlet, 12-discharge pipe, 13-hand valve, 21-arc-shaped screen, 22-rotating shaft, 23-motor, 24-first guide plate, 25-second guide plate, 26-waste material port, 27-sieve plate, 28-rack, 29-coupling, 31-first partition plate, 32-second partition plate, 4-tower plate, 41-liquid drop bin, 42-gas outlet pipe, 51-condensation pipe, 52-cover pipe, 53-cooling water tank, 54-collection tank, 55-circulating pump, 56-water inlet pipe, 57-water outlet pipe, 58-backflow pipe. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application, obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present application.

[0026] As shown in Figures 1-4 A chemical oil refining fractionating device, comprising a tower body 1, a filtering mechanism, a separating mechanism, a tower plate 4 and a condensing mechanism; the left side of the top plate of the tower body 1 is fixedly connected with a feeding port 11, the bottom of the left side plate of the tower body 1 is fixedly connected with a discharging pipe 12, the discharging pipe 12 is fixedly connected with a manual valve 13, the filtering mechanism is arranged above the tower body 1, the separating mechanism is arranged below the filtering mechanism, the separating mechanism comprises a first separating plate 31 and a second separating plate 32, the first separating plate 31 and the second separating plate 32 are fixedly connected between the front and rear side plates of the tower body 1, the first separating plate 31 is in inverted U shape, the second separating plate 32 is in L shape, the second separating plate 32 is symmetrically arranged left and right, the side plates of the first separating plate 31 and the second separating plate 32 are staggered with each other, and there is a gap between the first separating plate 31 and the second separating plate 32, the tower plate 4 is fixedly connected in the tower body 1 and below the separating mechanism, the tower plate 4 is vertically and uniformly arranged, one end of the tower plate 4 is fixedly connected with a liquid falling bin 41, the liquid falling bins 41 on the upper and lower two tower plates 4 are staggered arranged, the tower plate 4 is an electric resistance heating plate, the center of the first separating plate 31 is fixedly connected with an air outlet pipe, the centers of the tower plates 4 except the bottom layer are also fixedly connected with air outlet pipes 42, the air outlet pipes 42 extend out through the rear side plate of the tower body 1, and the heads of the air outlet pipes 42 are connected with the condensing mechanism.

[0027] Further, the filtering mechanism comprises an arc-shaped screen 21, a rotating shaft 22 and a motor 23; the arc-shaped screen 21 is fixedly connected above the tower body 1, two ends of the arc-shaped screen 21 are respectively fixedly connected with a first material guide plate 24 and a second material guide plate 25, a waste port 26 is formed in the right side plate of the tower body 1 at a position corresponding to the second material guide plate 25, the rotating shaft 22 is rotatably connected at the center of the arc-shaped screen 21, a screen plate 27 is fixedly connected on the rotating shaft 22, a rack 28 is fixedly connected to the rear side of the tower body 1, and the motor 23 is fixedly connected to the lower surface of the rack 28, and the output shaft of the motor 23 is connected with the rotating shaft 22 through a shaft coupling 29.

[0028] Further, the rotating shaft 22 is fixedly connected with the screen plates 27 at equal intervals in the circumferential direction.

[0029] Further, the condensing mechanism comprises a condensing pipe 51, a cover pipe 52 and a cooling water tank 53; the head of the air outlet pipe 42 is fixedly connected with the condensing pipe 51, the head of the condensing pipe 51 is inserted into a collecting tank 54, the cover pipe 52 is fixedly connected outside the condensing pipe 51, the cooling water tank 53 contains condensing water, a circulating pump 55 is fixedly connected to the cooling water tank 53, the inlet and outlet of the circulating pump 55 are respectively fixedly connected with a water inlet pipe 56 and a water outlet pipe 57, the head of the water inlet pipe 56 is inserted into the bottom of the cooling water tank 53, the head of the water outlet pipe 57 is fixedly connected with the lower right of the cover pipe 52, a backflow pipe 58 is fixedly connected to the upper left of the cover pipe 52, and the head of the backflow pipe 58 is inserted into the bottom of the cooling water tank 53.

[0030] Further, the bottom plate of the tower body 1 is downwardly inclined along the direction from right to left.

[0031] A specific embodiment of the present invention is as follows:

[0032] like Figure 1 As shown, crude oil enters the tower body 1 through the feed port 11, and enters the curved screen 21 through the first guide plate 24. Impurities are filtered out of the crude oil through the curved screen 21. Figure 3 As shown, the motor 23 drives the rotating shaft 22 and the sieve plate 27 to rotate through the coupling 29. The direction of the motor 23 is set so that the sieve plate 27 rotates clockwise. The sieve plate 27 drives the impurities. When the sieve plate 27 moves to the upper side, a small amount of oil in the impurities can pass through the sieve plate 27 and leak down, and the solid impurities are driven. When the sieve plate 27 moves to the right side and docks with the second guide plate 25, the impurities slide down and are discharged through the second guide plate 25 and the waste port 26.

[0033] The filtered oil falls onto the partition mechanism and enters the second partition plate 32 for storage. As the amount of oil increases, the oil leaks down between the first partition plate 31 and the second partition plate 32. Since the oil has a certain depth, the upper and lower parts of the partition mechanism are isolated from each other under the action of the oil seal.

[0034] The oil falls onto the tower plate 4 and is heated by the tower plate 4. When the depth of the oil on the tower plate 4 exceeds the downcomer 41, the oil falls onto the tower plate 4 of the lower layer through the downcomer 41, so that each tower plate 4 can heat the oil to generate steam.

[0035] Steam is discharged through the outlet pipe 42, as shown in FIG. Figure 3 As shown, steam enters the condenser 51, and the circulating pump 55 draws condensed water into the cover pipe 52 when working, and the condensed water returns to the cooling water tank 53 through the return pipe 58, thereby realizing the circulation flow of the condensed water. The steam is liquefied in the condenser 51 and enters the collection box 54.

[0036] In the present application, a refrigeration device may be provided in the condensation water tank for refrigeration to ensure that the condensation water has a lower temperature.

[0037] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, numerous modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A chemical refinery fractionation plant, characterized by, The utility model relates to a distillation tower, including tower body (1), filter mechanism, separation mechanism, tray (4) and condensing mechanism, the top left side of tower body (1) is fixed with feed inlet (11), and the left side plate bottom of tower body (1) is fixed with discharge pipe (12), and the discharge pipe (12) is fixed with hand valve (13), the filter mechanism is arranged in the upper of tower body (1), the separation mechanism is arranged below filter mechanism, and the separation mechanism includes first separation plate (31) and second separation plate (32), the first separation plate (31) and second separation plate (32) are fixed between the front and rear side plates of tower body (1), the first separation plate (31) is inverted U shape, and the second separation plate (32) is L shape, and the second separation plate (32) is symmetrically arranged, and the side plate of first separation plate (31) and second separation plate (32) are staggered, and there is gap between first separation plate (31) and second separation plate (32), the tray (4) is fixed in tower body (1) and is located below separation mechanism, and the tray (4) is vertically and uniformly arranged, and one end of tray (4) is fixed with downcomer (41), and the downcomer (41) on the upper and lower two layers of tray (4) is staggered, and the tray (4) is resistance heating plate, the center of first separation plate (31) is fixed with gas outlet pipe (42), and the center of each tray (4) except the bottom layer is also fixed with gas outlet pipe (42), the gas outlet pipe (42) is stretched out through the rear side plate of tower body (1), and the head of gas outlet pipe (42) is connected with condensing mechanism.

2. A chemical refinery fractionation apparatus as claimed in claim 1, wherein, The filter mechanism includes arc screen (21), rotating shaft (22) and motor (23), the arc screen (21) is fixed in the upper of tower body (1), and the both ends of arc screen (21) are fixed with first guide plate (24) and second guide plate (25) respectively, the right side plate of tower body (1) is provided with waste port (26) at the position corresponding to second guide plate (25), the rotating shaft (22) is rotatably connected in the center of arc screen (21), the screen plate (27) is fixed on the rotating shaft (22), the rear side of tower body (1) is fixed with rack (28), the motor (23) is fixed on the lower surface of rack (28), and the output shaft of motor (23) is butted with rotating shaft (22) through shaft coupling (29).

3. A chemical refinery fractionation apparatus as claimed in claim 2, wherein, The screen plate (27) is fixed on the rotating shaft (22) uniformly.

4. A chemical refinery fractionation apparatus as claimed in claim 1, wherein, The condensing mechanism comprises a condensing pipe (51), a cover pipe (52) and a cooling water tank (53); the head of the air outlet pipe (42) is fixedly connected with the condensing pipe (51), the head of the condensing pipe (51) is inserted into the collecting tank (54), the cover pipe (52) is fixedly connected outside the condensing pipe (51), the cooling water tank (53) contains condensing water, a circulating pump (55) is fixedly connected on the cooling water tank (53), the inlet and outlet of the circulating pump (55) are fixedly connected with a water inlet pipe (56) and a water outlet pipe (57) respectively, the head of the water inlet pipe (56) is inserted into the bottom of the cooling water tank (53), the head of the water outlet pipe (57) is fixedly connected with the lower right of the cover pipe (52), the upper left of the cover pipe (52) is fixedly connected with a backflow pipe (58), and the head of the backflow pipe (58) is inserted into the bottom of the cooling water tank (53).

5. A chemical refinery fractionation apparatus as claimed in claim 1, wherein, The bottom plate upper surface of the tower body (1) is arranged to be inclined downward along the right-to-left direction.

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