Diborane high-boiling residue discharging device

Abstract

The utility model belongs to the technical field of special gas manufacturing, and particularly relates to a diborane high-boiling residue discharging device which comprises a de-heavy tower, the right end of the de-heavy tower is connected with a quantitative pipe, an HVO1 valve is arranged between the quantitative pipe and the de-heavy tower, the right end of the quantitative pipe is connected with a nitrogen vacuum generator, and the right end of the nitrogen vacuum generator is connected with a high-boiling residue discharging device. An HVO2 valve is connected between the quantitative pipe and the nitrogen vacuum generator, the left end of the nitrogen vacuum generator is connected with a normally open nitrogen inlet pipe, and the lower end of the nitrogen vacuum generator is fixedly provided with a vacuum nitrogen inlet pipe; according to the diborane high-boiling-point substance discharging scheme disclosed by the invention, the scheme that nitrogen is adopted to convey quantitative high-boiling-point substances to the washing tower alkali liquor tank for hydrolysis damage is adopted, so that the high-boiling-point substance discharging problem is safely solved, and the production safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of special gas manufacturing, in particular to a diborane high-boiling matter discharge device. Background Art

[0002] As an important component of chemicals, high-purity diborane can be used as high-energy fuel for rockets and missiles. It is also widely used in semiconductors, optoelectronic materials, laser technology and other fields. With the continuous development of these fields, the demand for high-purity diborane is also gradually increasing. At present, the market supply and demand relationship of high-purity diborane is relatively balanced. According to market data, the growth rate of demand is slightly higher than the growth rate of supply, which means that the market potential is large. In the future, with the advancement of technology and the expansion of application fields, the demand for high-purity diborane will further increase.

[0003] Diborane is highly toxic and flammable and explosive. Its highly toxic and flammable and explosive properties bring many inconveniences to the production process. The current diborane high-boiling product discharge device has poor safety during the transportation of diborane high-boiling products, is flammable and explosive, and thus causes danger.

[0004] Therefore, a diborane high boiling point discharge device is proposed to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a diborane high boiling point discharge device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a diborane high-boiling-substance discharge device, comprising a deweighting tower, a dosing tube connected to the right end of the deweighting tower, an HVO1 valve arranged between the dosing tube and the deweighting tower, a nitrogen vacuum generator connected to the right end of the dosing tube, an HVO2 valve connected between the dosing tube and the nitrogen vacuum generator, a normally open nitrogen discharge pipe connected to the left end of the nitrogen vacuum generator, a vacuum nitrogen discharge pipe fixedly arranged at the lower end of the nitrogen vacuum generator, a nitrogen inlet pipe connected to the lower ends of the normally open nitrogen discharge pipe and the vacuum nitrogen discharge pipe, an online oxygen analyzer arranged at the upper end of the nitrogen inlet pipe, a washing tower alkali liquid tank arranged at the right end of the nitrogen vacuum generator, and a tail gas washing tower arranged at the right end of the washing tower alkali liquid tank.

[0007] Preferably, a first vacuum nitrogen valve is provided on the tube wall of the quantitative tube.

[0008] Preferably, a second vacuum nitrogen valve is provided at the left end of the nitrogen vacuum generator.

[0009] Preferably, the nitrogen vacuum generator is connected to the washing tower alkali liquid tank via a first discharge pipe, and the right end of the first discharge pipe extends to the bottom of the washing tower alkali liquid tank.

[0010] Preferably, the washing tower alkali liquid tank is connected to the tail gas washing tower via a second discharge pipe, and the left end of the second discharge pipe is arranged at the upper end of the washing tower alkali liquid tank.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The present application discloses a diborane high-boiling-point discharge scheme, which uses nitrogen to transport a certain amount of high-boiling points to a washing tower alkali liquid tank for hydrolysis and destruction, thereby safely solving the high-boiling-point discharge problem and improving production safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model.

[0014] In the figure: 1 deweighting tower, 2 quantitative tube, 3HVO1 valve, 4 nitrogen vacuum generator, 5HVO2 valve, 6 normally open nitrogen discharge pipe, 7 vacuum nitrogen discharge pipe, 8 nitrogen inlet pipe, 9 online oxygen analysis device, 10 washing tower alkali liquid tank, 11 tail gas washing tower, 12 first vacuum nitrogen valve, 13 second vacuum nitrogen valve, 14 first discharge pipe, 15 second discharge pipe. DETAILED DESCRIPTION

[0015] 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.

[0016] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0017] Example:

[0018] See also Figure 1 , the utility model provides a technical solution:

[0019] A diborane high-boiling-substance discharge device comprises a de-weighting tower 1, a dosing tube 2 is connected to the right end of the de-weighting tower 1, an HVO1 valve 3 is arranged between the dosing tube 2 and the de-weighting tower 1, a nitrogen vacuum generator 4 is connected to the right end of the dosing tube 2, an HVO2 valve 5 is connected between the dosing tube 2 and the nitrogen vacuum generator 4, a normally open nitrogen discharge pipe 6 is connected to the left end of the nitrogen vacuum generator 4, a vacuum nitrogen discharge pipe 7 is fixedly arranged at the lower end of the nitrogen vacuum generator 4, a nitrogen inlet pipe 8 is commonly connected to the lower ends of the normally open nitrogen discharge pipe 6 and the vacuum nitrogen discharge pipe 7, an online oxygen analyzer 9 is arranged at the upper end of the nitrogen inlet pipe 8, a washing tower alkali liquid tank 10 is arranged at the right end of the nitrogen vacuum generator 4, and a tail gas washing tower 11 is arranged at the right end of the washing tower alkali liquid tank 10.

[0020] The tube wall of the quantitative tube 2 is provided with a first vacuum nitrogen valve 12 .

[0021] A second vacuum nitrogen valve 13 is provided at the left end of the nitrogen vacuum generator 4 .

[0022] The nitrogen vacuum generator 4 is connected to the washing tower alkali liquid tank 10 via a first discharge pipe 14 , and the right end of the first discharge pipe 14 extends to the bottom of the washing tower alkali liquid tank 10 .

[0023] The washing tower alkali liquid tank 10 is connected to the tail gas washing tower 11 through a second discharge pipe 15 , and the left end of the second discharge pipe 15 is arranged at the upper end of the washing tower alkali liquid tank 10 .

[0024] Working principle:

[0025] The specific steps of the diborane high boiling point discharge method are as follows:

[0026] Step 1: Full reflux of de-weighting tower 1 at the high boiling stage;

[0027] Step 2: Open the first vacuum nitrogen valve 12 and ensure that the second vacuum nitrogen valve 13 indicates vacuum;

[0028] Step 3: When discharging high boiling water, open HV01 valve 3, and the high boiling water enters the quantitative tube. When the pressure of quantitative tube 2 is consistent with the pressure of deweighting tower 1, close HV01 valve 3;

[0029] Step 4: When confirming that HV01 valve 3 is closed, open HV02 valve 5, and the high boiling point in quantitative tube 3 is discharged into washing tower alkali liquid tank 10 under the vacuum nitrogen inlet pipe 7 for hydrolysis and destruction;

[0030] Step 5: After the high boiling point in the quantitative tube 3 is completely discharged, close the vacuum nitrogen in the vacuum nitrogen discharge tube 7, open the normally open nitrogen in the normally open nitrogen discharge tube 6 to purge for 1 minute, then close the normally open nitrogen discharge tube 6, open the vacuum nitrogen in the vacuum nitrogen discharge tube 7 to replace the vacuum nitrogen in the quantitative tube 3, after doing this 3 times, close the HVO2 valve 5, and open the normally open nitrogen in the normally open nitrogen discharge tube 6;

[0031] Step 6: Repeat steps 1 to 5 in order when discharging high boiling water next time;

[0032] Step 7: The liquid in the washing tower alkali liquid tank 10 enters the tail gas washing tank 11.

[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0034] Although 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 diborane high boiling product discharge device, comprising a deweighting tower (1), characterized in that: The right end of the deweighting tower (1) is connected to a quantitative tube (2), an HVO1 valve (3) is provided between the quantitative tube (2) and the deweighting tower (1), the right end of the quantitative tube (2) is connected to a nitrogen vacuum generator (4), an HVO2 valve (5) is provided between the quantitative tube (2) and the nitrogen vacuum generator (4), the left end of the nitrogen vacuum generator (4) is connected to a normally open nitrogen discharge pipe (6), and the nitrogen vacuum generator (4) is connected to a normally open nitrogen discharge pipe (6). A vacuum nitrogen discharge pipe (7) is fixedly provided at the lower end of the generator (4); a nitrogen inlet pipe (8) is commonly connected to the lower ends of the normally open nitrogen discharge pipe (6) and the vacuum nitrogen discharge pipe (7); an online oxygen analysis device (9) is provided at the upper end of the nitrogen inlet pipe (8); a washing tower alkali liquid tank (10) is provided at the right end of the nitrogen vacuum generator (4); and a tail gas washing tower (11) is provided at the right end of the washing tower alkali liquid tank (10).

2. A diborane high boiling point discharge device according to claim 1, characterized in that: The tube wall of the quantitative tube (2) is provided with a first vacuum nitrogen valve (12).

3. A diborane high boiling point discharge device according to claim 1, characterized in that: A second vacuum nitrogen valve (13) is provided at the left end of the nitrogen vacuum generator (4).

4. A diborane high boiling point discharge device according to claim 1, characterized in that: The nitrogen vacuum generator (4) is connected to the washing tower alkali liquid tank (10) via a first discharge pipe (14), and the right end of the first discharge pipe (14) extends to the bottom of the washing tower alkali liquid tank (10).

5. A diborane high boiling point discharge device according to claim 1, characterized in that: The washing tower alkali liquid tank (10) is connected to the tail gas washing tower (11) via a second discharge pipe (15), and the left end of the second discharge pipe (15) is arranged at the upper end inside the washing tower alkali liquid tank (10).

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