Diborane impurity adsorption tower

Abstract

The utility model relates to the field of impurity adsorption towers, in particular to an impurity adsorption tower which comprises a tower body and a main gas conveying pipe, two gas inlet holes are symmetrically formed in the side wall of the tower body, the main gas conveying pipe is connected with a gas inlet of a diverter valve, and two gas outlets of the diverter valve are connected with one end of a first gas conveying pipe and one end of a second gas conveying pipe respectively. And the other ends of the second gas conveying pipe and the first gas conveying pipe are respectively connected with two gas inlet holes of the tower body. Compared with an impurity adsorption tower in the prior art, the device can seamlessly and rapidly replace the liquid adsorbent on the premise of not influencing the work of the adsorption tower in a mode that the two air inlet holes in the tower body work in a distributed mode, and the problems that in the prior art, when the liquid adsorbent is replaced, a valve of the adsorption tower needs to be closed, and the replacement time is shortened are solved. And the adsorption tower needs to be disassembled to replace the adsorbent, so that the liquid adsorbent of the impurity adsorption tower is very inconvenient to replace, and the adsorption efficiency of the adsorption tower is seriously influenced.

Description

Technical Field

[0001] The utility model relates to the field of impurity adsorption towers, in particular to an impurity adsorption tower. Background Art

[0002] The diborane prepared by the device is mixed with gases such as O2, N2, CH4 and CO. In the existing processing technology, an adsorption tower is required to adsorb the mixed gas in the diborane to obtain diborane with higher purity.

[0003] The diborane adsorbent currently used is a liquid adsorbent. After using the liquid adsorbent for a period of time, the adsorbent needs to be replaced. However, in the equipment of the prior art, when replacing the adsorbent, it is often necessary to first close the inlet and outlet valves, stop the adsorption tower, and then disassemble the adsorption tower and replace the adsorbent inside it, which makes it extremely inconvenient to replace the liquid adsorbent in the impurity adsorption tower, increases the difficulty of construction, and seriously affects the adsorption efficiency of the adsorption tower. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art and provide a diborane impurity adsorption tower with a simple structure, which can quickly replace the liquid adsorbent without affecting the operation of the adsorption tower, so as to solve the technical problems in the prior art that the adsorption tower needs to be disassembled, which makes the impurity adsorption tower extremely inconvenient when replacing the liquid adsorbent and increases the construction difficulty.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A diborane impurity adsorption tower comprises a tower body and a main gas pipeline, two air inlets are symmetrically arranged on the side wall of the tower body, a partition plate is arranged inside the tower body, a sealing baffle is rotatably connected to the partition plate, a motor is arranged on the tower body, and the output shaft of the motor is connected to the sealing baffle, the main gas pipeline is connected to the gas inlet of a diverter valve, a valve cap is arranged on the diverter valve, two gas outlets of the diverter valve are respectively connected to one end of a first gas pipeline and a second gas pipeline, the other ends of the second gas pipeline and the first gas pipeline are respectively connected to the two air inlets of the tower body, and the second gas pipeline and the first gas pipeline are separated by the partition plate, a first water inlet pipe and a first water outlet pipe are arranged on the tower body, and the first water inlet pipe and the first water outlet pipe are close to the first gas pipeline, a second water inlet pipe and a second water outlet pipe are arranged on the tower body, the second water inlet pipe and the second water outlet pipe are close to the second gas pipeline, and the first water inlet pipe and the second water outlet pipe are respectively separated by the partition plate, and an outlet is arranged on the top of the tower body.

[0007] As a further optimization or improvement of this scheme, the second gas pipe and the first gas pipe located inside the tower body are both connected to the input end of the elbow, the output end of the elbow is connected to the input end of the vent plate, the output end of the vent plate is connected to a number of ventilation pipes, a ventilation ball is provided on the several ventilation pipes, a number of ventilation holes are opened on the ventilation ball, and the ventilation ball, ventilation pipe, ventilation plate and elbow are all connected.

[0008] As a further optimization or improvement of this solution, a water absorption plate is provided inside the tower body.

[0009] As a further optimization or improvement of the present solution, the sealing baffle is semicircular, and the circumference of the sealing baffle abuts against the inner wall of the tower body.

[0010] As a further optimization or improvement of the present solution, a sealing strip is provided on the portion of the sealing baffle that contacts the tower body.

[0011] As a further optimization or improvement of this solution, the output end of the bent pipe faces the bottom of the tower body.

[0012] Beneficial effects of the utility model:

[0013] (1) Compared with the impurity adsorption tower in the prior art, the present device can achieve a method for seamlessly and quickly replacing the liquid adsorbent without affecting the operation of the adsorption tower by distributing the two air inlet holes on the tower body. This avoids the need to close the adsorption tower valve and disassemble the adsorption tower to replace the adsorbent when replacing the liquid adsorbent in the prior art, which makes it extremely inconvenient to replace the liquid adsorbent in the impurity adsorption tower and seriously affects the adsorption efficiency of the adsorption tower.

[0014] (2) After diborane enters into a plurality of ventilation pipes through the ventilation disk, it can be evenly contacted with the adsorbent through a plurality of through holes of the ventilation ball. At the same time, the diborane passing through a plurality of through holes of the ventilation ball can be contacted with the adsorbent over a large area, thereby improving the impurity removal efficiency of diborane. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 3 The utility model is a sectional view of the overall structure.

[0019] Figure 4 A structural sectional view of a tower body of the utility model.

[0020] Figure 5 Structural distribution diagram of the second gas pipeline and the first gas pipeline of the utility model.

[0021] Figure 6 A schematic structural diagram of a motor and a sealing baffle of the utility model.

[0022] Figure 7 A schematic structural diagram of the ventilation pipe of the utility model.

[0023] The following are marked in the figure: 1. tower body; 2. motor; 3. outlet; 4. main gas pipe; 5. second gas pipe; 6. first gas pipe; 7. diverter valve; 8. valve cap; 9. first water inlet pipe; 10. first water outlet pipe; 11. second water inlet pipe; 12. second water outlet pipe; 13. ventilation plate; 14. ventilation pipe; 15. ventilation ball; 16. sealing baffle; 17. water absorption plate; 18. partition plate; 19. elbow. DETAILED DESCRIPTION

[0024] 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 of 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.

[0025] See also Figure 1-Figure 5 A diborane impurity adsorption tower comprises a tower body 1 and a main gas pipeline 4, two gas inlet holes are symmetrically arranged on the side wall of the tower body 1, a partition plate 18 is arranged inside the tower body 1, a sealing baffle 16 is rotatably connected to the partition plate 18, a motor 2 is arranged on the tower body 1, and the output shaft of the motor 2 is connected to the sealing baffle 16, the main gas pipeline 4 is connected to the gas inlet of the diverter valve 7, a valve cap 8 is arranged on the diverter valve 7, two gas outlets of the diverter valve 7 are respectively connected to one end of the first gas pipeline 6 and the second gas pipeline 5, and the other end of the second gas pipeline 5 and the first gas pipeline 6 are respectively It is connected to the two air inlet holes of the tower body 1, and the second air pipe 5 and the first air pipe 6 are separated by a partition plate 18. A first water inlet pipe 9 and a first water outlet pipe 10 are provided on the tower body 1, and the first water inlet pipe 9 and the first water outlet pipe 10 are close to the first air pipe 6. A second water inlet pipe 11 and a second water outlet pipe 12 are provided on the tower body 1, and the second water inlet pipe 11 and the second water outlet pipe 12 are close to the second air pipe 5, and the first water inlet pipe 9 and the second water inlet pipe 11 and the first water outlet pipe 10 and the second water outlet pipe 12 are separated by a partition plate 18 respectively, and an outlet 3 is provided on the top of the tower body 1.

[0026] It should be noted that the partition plate 18 divides the bottom of the tower body 1 into two trough bodies, the second air pipe 5, the second water inlet pipe 11 and the second water outlet pipe 12 are located in the auxiliary trough body; the first air pipe 6, the first water inlet pipe 9 and the first water outlet pipe 10 are located in the main trough body, and the liquid adsorbent is transported inside the two parts through the second water inlet pipe 11 and the first water inlet pipe 9 respectively. When the adsorption work is performed, the valve cap 8 is adjusted to make one of the second air pipe 5 and the first air pipe 6 work.

[0027] The implementation principle of the utility model is as follows: before the equipment works, liquid adsorbent is transported to the auxiliary tank body and the main tank body respectively through the first water inlet pipe 9 and the second water inlet pipe 11. When the adsorbent submerges the air inlet hole of the tower body 1, the adsorbent is stopped from being transported, and then the motor 2 is driven to rotate the sealing baffle 16 and cover the auxiliary tank body, and then the valve cap 8 is adjusted to allow the diborane transported by the main gas pipe 4 to enter the main tank body through the second gas pipe 5. At this time, the first gas pipe 6 does not participate in the work. When the liquid adsorbent needs to be replaced, the motor 2 is driven to drive the sealing baffle 16 to rotate and cover the auxiliary tank body, and at the same time, the valve cap 8 is adjusted to allow the diborane transported by the main gas pipe 4 to start being transported into the auxiliary tank body through the first gas pipe 6. At this time, the second gas pipe 5 stops transporting diborane, and then the diborane transported by the main gas pipe 4 enters the main tank body through the second gas pipe 5. The second water outlet pipe 12 draws out the adsorbent that needs to be replaced in the main tank body. When the adsorbent that needs to be replaced in the main tank body is drained, new liquid adsorbent is transported to the main tank body through the second water inlet pipe 11. When the adsorbent needs to be replaced again, the above steps can be repeated. Compared with the impurity adsorption tower in the prior art, the present device can achieve a method for seamlessly and quickly replacing the liquid adsorbent without affecting the operation of the adsorption tower through the distribution of two air inlet holes on the tower body 1, avoiding the need to close the adsorption tower valve and disassemble the adsorption tower to replace the adsorbent when replacing the liquid adsorbent in the prior art, which makes it extremely inconvenient for the impurity adsorption tower to replace the liquid adsorbent, increases the difficulty of construction, and seriously affects the adsorption efficiency of the adsorption tower.

[0028] See also Figure 3-Figure 7 The second gas pipe 5 and the first gas pipe 6 located inside the tower body 1 are connected to the input end of the elbow 19, the output end of the elbow 19 is connected to the input end of the ventilation disk 13, the output end of the ventilation disk 13 is connected to a plurality of ventilation pipes 14, and a ventilation ball 15 is provided on the plurality of ventilation pipes 14, and a plurality of ventilation holes are opened on the ventilation ball 15, and the ventilation ball 15, the ventilation pipe 14, the ventilation disk 13 and the elbow 19 are all connected.

[0029] In actual use, diborane enters the elbow 19 through the second gas pipe 5 and the first gas pipe 6, and the diborane inside the elbow 19 enters the plurality of ventilation pipes 14 through the ventilation plate 13, and is uniformly contacted with the adsorbent through the plurality of through holes of the ventilation ball 15. The diborane passing through the plurality of through holes of the ventilation ball 15 can be in contact with the adsorbent over a large area, thereby improving the impurity removal efficiency of diborane.

[0030] See also Figure 3 , a water absorption plate 17 is arranged inside the tower body 1; in actual use, the impurity-removed diborane can remove the internal moisture through the water absorption plate 17 and leave the tower body 1 from the outlet 3, thereby further improving the purity of the diborane.

[0031] join Figure 3-Figure 4 The sealing baffle 16 is semicircular, and the circumference of the sealing baffle 16 abuts against the inner wall of the tower body 1; it should be noted that the semicircular setting of the sealing baffle 16 can rotate in accordance with the inner wall of the tower body 1, which can reduce the interference between the movement path of the sealing baffle 16 and the inner wall of the tower body 1.

[0032] join Figure 3-Figure 4 The sealing baffle 16 is provided with a sealing strip at the part in contact with the tower body 1; in actual use, the sealing strip at the contact part between the sealing baffle 16 and the tower body 1 can ensure that when the second gas transmission pipe 5 is working in the auxiliary tank body, diborane will not enter the main tank body, thus ensuring the sealing of the tank body.

[0033] See also Figure 6-Figure 7 , the output end of the elbow 19 is toward the bottom of the tower body 1; in actual use, when diborane enters the adsorbent through the elbow 19, since the output end of the elbow 19 is toward the bottom of the tower body 1, before diborane leaves the liquid surface of the liquid adsorbent, diborane can contact more adsorbent, and the adsorption efficiency of the adsorption tower increases.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A diborane impurity adsorption tower, characterized in that: The tower body (1) comprises a tower body (1) and a main gas pipeline (4), wherein two gas inlet holes are symmetrically arranged on the side wall of the tower body (1), a partition plate (18) is arranged inside the tower body (1), a sealing baffle plate (16) is rotatably connected to the partition plate (18), a motor (2) is arranged on the tower body (1), an output shaft of the motor (2) is connected to the sealing baffle plate (16), the main gas pipeline (4) is connected to the gas inlet of a diverter valve (7), a valve cap (8) is arranged on the diverter valve (7), two gas outlets of the diverter valve (7) are respectively connected to one end of a first gas pipeline (6) and a second gas pipeline (5), and the other ends of the second gas pipeline (5) and the first gas pipeline (6) are respectively connected to two gas outlets of the tower body (1). The tower body (1) is connected to the air inlet hole, and the second air pipeline (5) and the first air pipeline (6) are separated by a partition plate (18); a first water inlet pipe (9) and a first water outlet pipe (10) are arranged on the tower body (1), and the first water inlet pipe (9) and the first water outlet pipe (10) are close to the first air pipeline (6); a second water inlet pipe (11) and a second water outlet pipe (12) are arranged on the tower body (1), and the second water inlet pipe (11) and the second water outlet pipe (12) are close to the second air pipeline (5), and the first water inlet pipe (9) and the second water inlet pipe (11) and the first water outlet pipe (10) and the second water outlet pipe (12) are separated by a partition plate (18) respectively; and an outlet (3) is arranged on the top of the tower body (1).

2. A diborane impurity adsorption tower according to claim 1, characterized in that: The second gas delivery pipe (5) and the first gas delivery pipe (6) located inside the tower body (1) are both connected to the input end of the bent pipe (19), the output end of the bent pipe (19) is connected to the input end of the ventilation disk (13), the output end of the ventilation disk (13) is connected to a plurality of ventilation pipes (14), a ventilation ball (15) is provided on the plurality of ventilation pipes (14), a plurality of ventilation holes are provided on the ventilation ball (15), and the ventilation ball (15), the ventilation pipe (14), the ventilation disk (13) and the bent pipe (19) are all connected.

3. A diborane impurity adsorption tower according to claim 1, characterized in that: A water absorption plate (17) is arranged inside the tower body (1).

4. A diborane impurity adsorption tower according to claim 1, characterized in that: The sealing baffle (16) is semicircular, and the circumference of the sealing baffle (16) abuts against the inner wall of the tower body (1).

5. A diborane impurity adsorption tower according to claim 4, characterized in that: A sealing strip is provided on the portion of the sealing baffle (16) that is in contact with the tower body (1).

6. A diborane impurity adsorption tower according to claim 2, characterized in that: The output end of the curved pipe (19) faces the bottom of the tower body (1).

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