Gas-liquid separator for tail gas treatment in diethyl hydroxylamine production

Abstract

The utility model discloses a gas-liquid separator for tail gas treatment in diethyl hydroxylamine production, which comprises a gas inlet pipe communicated with the left side of the surface of the gas-liquid separator, a steam outlet pipe is arranged on the left side of the gas-liquid separator, the gas inlet pipe is communicated with the steam outlet pipe, a leakage-proof groove is arranged at the left end of the gas inlet pipe, and the gas inlet pipe is communicated with the leakage-proof groove. The right end of the steam outlet pipe is fixedly connected with a leakage-proof ring, the surface of the steam inlet pipe and the surface of the steam outlet pipe are both connected with reinforcing rings in a sliding mode, the leakage-proof ring is embedded in the inner cavity of the leakage-proof groove, then the reinforcing rings on the surface of the steam inlet pipe and the surface of the steam outlet pipe slide, and the positions of the two reinforcing rings are opposite to each other; and then the gas inlet pipe, the steam outlet pipe and the reinforcing ring are fixed through the bolt and the nut, so that the purpose of avoiding gas leakage at the joint of the gas inlet pipe and the steam outlet pipe when the gas-liquid separator communicates with the gas inlet pipe through the steam outlet pipe for gas inlet can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tail gas treatment, in particular to a gas-liquid separator for treating tail gas from diethylhydroxylamine production. Background Art

[0002] Diethylhydroxylamine is primarily used as a polymerization inhibitor in the production and storage of conjugated olefins such as styrene, butadiene, isoprene, methyl methacrylate, acrylonitrile, and other monomers containing active bonds. The current industrial production process uses triethylamine as a raw material, which is oxidized in the presence of a catalyst to produce triethylamine oxide. The triethylamine oxide is then pyrolyzed and purified by distillation to obtain diethylhydroxylamine. This process produces ethylene as a by-product, which is typically heated in a boiler to form steam before being discharged.

[0003] The gas-liquid separator can effectively separate the gas and liquid components of the vapor generated after heating the by-product ethylene, so as to facilitate subsequent processing and utilization. In order to avoid gas leakage at the connection between the air inlet pipe and the steam outlet pipe when the gas-liquid separator is connected to the air inlet pipe through the steam outlet pipe to intake air, a gas-liquid separator for treating tail gas from diethylhydroxylamine production is designed. The device can enhance the sealing of the connection between the air inlet pipe and the steam outlet pipe through the use of leak-proof grooves and leak-proof rings. At the same time, the reinforcement ring can make the connection between the air inlet pipe and the steam outlet pipe tighter, that is, when the gas-liquid separator is connected to the air inlet pipe through the steam outlet pipe to intake air, gas leakage at the connection between the air inlet pipe and the steam outlet pipe can be avoided. Utility Model Content

[0004] The purpose of the utility model is to provide a gas-liquid separator for treating tail gas from the production of diethylhydroxylamine, which has the purpose of avoiding gas leakage at the connection between the air inlet pipe and the steam outlet pipe when the gas-liquid separator is connected to the air inlet pipe through the steam outlet pipe to absorb air, so as to solve the above-mentioned background technical problems.

[0005] The utility model provides a technical solution for solving the above-mentioned technical problems as follows: a gas-liquid separator for treating tail gas from the production of diethylhydroxylamine, comprising an air inlet pipe connected to the left side of the surface of the gas-liquid separator: a steam outlet pipe is provided on the left side of the gas-liquid separator, the air inlet pipe and the steam outlet pipe are connected, a leak-proof groove is provided at the left end of the air inlet pipe, a leak-proof ring is fixedly connected to the right end of the steam outlet pipe, reinforcement rings are slidably connected to the surfaces of the air inlet pipe and the steam outlet pipe, screw holes are provided on the surfaces of the air inlet pipe, the steam outlet pipe and the reinforcement ring, bolts are threadedly connected to the inner cavities of the screw holes, and nuts are threadedly connected to the surfaces of the bolts.

[0006] Preferably, the inner cavity of the leakage-proof groove is provided with a leakage-proof gasket, the surface of the leakage-proof ring is embedded in the inner cavity of the leakage-proof groove, and the leakage-proof gasket is located between the right end of the leakage-proof ring and the inner wall of the leakage-proof groove.

[0007] Preferably, a rubber gasket is provided at the connection point between the steam outlet pipe and the leak-proof groove, and the rubber gasket is located in the inner cavity of the leak-proof ring.

[0008] Preferably, the surfaces of the reinforcement rings are fixedly connected with expansion rings, and the two expansion rings are provided with reinforcement grooves on opposite sides thereof.

[0009] Preferably, the surfaces of the expansion rings are collectively sleeved with a reinforcement piece, the inner wall of the reinforcement piece is fixedly connected to two reinforcement gaskets, and the surfaces of the reinforcement gaskets are embedded in the inner cavity of the reinforcement groove.

[0010] Preferably, a support ring is fixedly connected to the surface of the gas-liquid separator via bolts, and four legs are fixedly connected to the bottom of the support ring.

[0011] The beneficial effects of the utility model are:

[0012] 1. The utility model inserts the leak-proof ring into the inner cavity of the leak-proof groove, then slides the reinforcement rings on the surfaces of the air inlet pipe and the steam outlet pipe to align the two reinforcement rings, and then fixes the air inlet pipe, the steam outlet pipe and the reinforcement rings with bolts and nuts. This can achieve the purpose of preventing air leakage at the connection between the air inlet pipe and the steam outlet pipe when the gas-liquid separator is connected to the air inlet pipe through the steam outlet pipe;

[0013] 2. The utility model can make the connection between the two reinforcement rings tighter by using the expansion ring and the reinforcement piece, and can reinforce the air inlet pipe and the steam outlet pipe;

[0014] 3. The utility model can achieve a sealed effect at the connection between the two reinforcement rings by using the reinforcement groove and the reinforcement gasket ring in combination. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] in:

[0016] Figure 1 This is a front view schematic diagram of an embodiment of the utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of a liquid inlet pipe and a steam outlet pipe according to an embodiment of the present invention;

[0018] Figure 3 This is a cross-sectional schematic diagram of a liquid inlet pipe and a steam outlet pipe according to an embodiment of the present invention;

[0019] Figure 4 This is a cross-sectional and disassembled schematic diagram of a liquid inlet pipe and a steam outlet pipe according to an embodiment of the present invention.

[0020] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0021] 1. Gas-liquid separator, 2. Air inlet pipe, 3. Steam outlet pipe, 4. Leak-proof groove, 5. Leak-proof ring, 6. Reinforcement ring, 7. Bolt, 8. Nut, 9. Leak-proof gasket, 10. Rubber gasket, 11. Expanding ring, 12. Reinforcement groove, 13. Reinforcement piece, 14. Reinforcement gasket, 15. Support ring, 16. Support leg. DETAILED DESCRIPTION

[0022] Hereinafter, an embodiment of a gas-liquid separator for treating tail gas from diethylhydroxylamine production according to the present invention will be described with reference to the accompanying drawings.

[0023] Example 1:

[0024] Figure 1-4 The utility model shows a gas-liquid separator for treating tail gas from the production of diethylhydroxylamine according to an embodiment of the present invention, which includes: an air inlet pipe 2 connected to the left side of the surface of the air-liquid separator 1; a steam outlet pipe 3 is provided on the left side of the air-liquid separator 1, the air inlet pipe 2 and the steam outlet pipe 3 are connected, a leak-proof groove 4 is provided at the left end of the air inlet pipe 2, a leak-proof ring 5 is fixedly connected to the right end of the steam outlet pipe 3, a reinforcement ring 6 is slidably connected to the surface of the air inlet pipe 2 and the steam outlet pipe 3, a screw hole is provided on the surface of the air inlet pipe 2, the steam outlet pipe 3 and the reinforcement ring 6, a bolt 7 is threadedly connected to the inner cavity of the screw hole, and a nut is threadedly connected to the surface of the bolt 7 8. The inner cavity of the leak-proof groove 4 is provided with a leak-proof gasket 9. The surface of the leak-proof ring 5 is embedded in the inner cavity of the leak-proof groove 4. The leak-proof gasket 9 is located between the right end of the leak-proof ring 5 and the inner wall of the leak-proof groove 4. A rubber gasket 10 is provided at the connection between the steam outlet pipe 3 and the leak-proof groove 4. The rubber gasket 10 is located in the inner cavity of the leak-proof ring 5. The surfaces of the two reinforcement rings 6 are fixedly connected with an expansion ring 11. The surfaces of the two expansion rings 11 are jointly provided with a reinforcement piece 13. By using the expansion ring 11 and the reinforcement piece 13 in combination, the connection between the two reinforcement rings 6 can be made tighter, and the air inlet pipe 2 and the steam outlet pipe 3 can be reinforced.

[0025] Example 2:

[0026] Figure 1-4The utility model shows an embodiment of a gas-liquid separator for treating tail gas from the production of diethylhydroxylamine, which includes: an air inlet pipe 2 connected to the left side of the surface of the gas-liquid separator 1; a steam outlet pipe 3 is provided on the left side of the gas-liquid separator 1, the air inlet pipe 2 and the steam outlet pipe 3 are connected, a leak-proof groove 4 is provided at the left end of the air inlet pipe 2, a leak-proof ring 5 is fixedly connected to the right end of the steam outlet pipe 3, a reinforcement ring 6 is slidably connected to the surface of the air inlet pipe 2 and the steam outlet pipe 3, and screw holes are provided on the surfaces of the air inlet pipe 2, the steam outlet pipe 3 and the reinforcement ring 6. The inner cavity is threadedly connected with a bolt 7, and the surface of the bolt 7 is threadedly connected with a nut 8. A reinforcement groove 12 is provided on the opposite side of the two expansion rings 11. The inner wall of the reinforcement member 13 is fixedly connected with two reinforcement gaskets 14. The surface of the reinforcement gasket 14 is embedded in the inner cavity of the reinforcement groove 12. Through the coordinated use of the reinforcement groove 12 and the reinforcement gasket 14, the connection between the two reinforcement rings 6 can achieve a sealed effect. The surface of the gas-liquid separator 1 is fixedly connected with a support ring 15 by bolts, and the bottom of the support ring 15 is fixedly connected with four support legs 16.

[0027] Working principle: When using the present invention, the user sleeves the leak-proof gasket 9 on the inner cavity of the leak-proof groove 4, and places the rubber gasket 10 in the inner cavity of the leak-proof ring 5, then fits the leak-proof ring 5 into the inner cavity of the leak-proof groove 4, and then slides the reinforcement ring 6 on the surface of the air inlet pipe 2 and the steam outlet pipe 3 to align the positions of the two reinforcement rings 6, and then fixes the air inlet pipe 2, the steam outlet pipe 3 and the reinforcement ring 6 with bolts 7 and nuts 8, so that the connection between the air inlet pipe 2 and the steam outlet pipe 3 is more sealed, and then sleeves the reinforcement member 13 on the surface of the two expansion rings 11, and then fits the reinforcement gasket 14 into the inner cavity of the reinforcement groove 12, so that the connection between the air inlet pipe 2 and the steam outlet pipe 3 is tighter, which can prevent air leakage from occurring at the connection between the air inlet pipe 2 and the steam outlet pipe 3 when the gas-liquid separator 1 is connected to the air inlet pipe 2 through the steam outlet pipe 3.

[0028] To sum up: the gas-liquid separator for treating tail gas from the production of diethylhydroxylamine is manufactured by embedding the leak-proof ring 5 into the inner cavity of the leak-proof groove 4, and then sliding the reinforcement ring 6 on the surface of the air inlet pipe 2 and the steam outlet pipe 3 to align the positions of the two reinforcement rings 6, and then fixing the air inlet pipe 2, the steam outlet pipe 3 and the reinforcement ring 6 with bolts 7 and nuts 8. This can achieve the purpose of avoiding leakage at the connection between the air inlet pipe 2 and the steam outlet pipe 3 when the gas-liquid separator 1 is connected to the air inlet pipe 2 through the steam outlet pipe 3 to intake air.

Claims

1. A gas-liquid separator for treating tail gas from diethylhydroxylamine production, characterized in that: The invention comprises an air inlet pipe (2) connected to the left side of the surface of the gas-liquid separator (1): a steam outlet pipe (3) is provided on the left side of the gas-liquid separator (1), the air inlet pipe (2) and the steam outlet pipe (3) are connected, a leak-proof groove (4) is provided at the left end of the air inlet pipe (2), a leak-proof ring (5) is fixedly connected to the right end of the steam outlet pipe (3), a reinforcing ring (6) is slidably connected to the surfaces of the air inlet pipe (2) and the steam outlet pipe (3), screw holes are provided on the surfaces of the air inlet pipe (2), the steam outlet pipe (3) and the reinforcing ring (6), a bolt (7) is threadedly connected to the inner cavity of the screw hole, and a nut (8) is threadedly connected to the surface of the bolt (7).

2. The gas-liquid separator for treating tail gas from diethylhydroxylamine production according to claim 1, characterized in that: The inner cavity of the leakage-proof groove (4) is provided with a leakage-proof gasket (9), the surface of the leakage-proof ring (5) is embedded in the inner cavity of the leakage-proof groove (4), and the leakage-proof gasket (9) is located between the right end of the leakage-proof ring (5) and the inner wall of the leakage-proof groove (4).

3. A gas-liquid separator for treating tail gas from diethylhydroxylamine production according to claim 2, characterized in that: A rubber gasket (10) is provided at the connection point between the steam outlet pipe (3) and the leak-proof groove (4), and the rubber gasket (10) is located in the inner cavity of the leak-proof ring (5).

4. A gas-liquid separator for treating tail gas from diethylhydroxylamine production according to claim 3, characterized in that: The surfaces of the two reinforcement rings (6) are both fixedly connected with expansion rings (11), and the two expansion rings (11) are each provided with reinforcement grooves (12) on opposite sides thereof.

5. The gas-liquid separator for treating tail gas from diethylhydroxylamine production according to claim 4, characterized in that: The surfaces of the two expansion rings (11) are jointly sleeved with a reinforcement piece (13), the inner wall of the reinforcement piece (13) is fixedly connected with two reinforcement gaskets (14), and the surfaces of the reinforcement gaskets (14) are embedded in the inner cavity of the reinforcement groove (12).

6. The gas-liquid separator for treating tail gas from diethylhydroxylamine production according to claim 5, characterized in that: A support ring (15) is fixedly connected to the surface of the gas-liquid separator (1) via bolts, and four supporting legs (16) are fixedly connected to the bottom of the support ring (15).

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