Hydrogenation discharge mechanism for producing aminopropanol

Abstract

The utility model provides a hydrogenation discharge mechanism for producing aminopropanol, which comprises an annular fixing plate and a pressure plate, the annular fixing plate is fixedly arranged on the inner wall of a gas discharge pipe and surrounds the inner wall of the gas discharge pipe by a circle, an annular baffle is arranged on the edge of the annular fixing plate, an annular convex block is arranged on the edge of the pressure plate, and the pressure plate is provided with an annular baffle. The annular protruding block is arranged between the annular baffle and the inner wall of the air leakage pipe and slidably connected with the annular baffle and the air leakage pipe. According to the hydrogenation discharge mechanism for producing the aminopropanol, through the cooperation of the annular fixing plate, the pressure plate, the annular limiting plate and the spring, when hydrogen needs to be recycled and the first gas storage tank and the second gas storage tank are communicated by opening the valve, gas in the first gas storage tank can impact the pressure plate, the pressure plate is stressed to compress the spring, and the spring is released; and the spring absorbs most impact force, so that the gas is prevented from impacting the second gas storage tank at a time, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogenation discharge, in particular to a hydrogenation discharge mechanism for producing aminopropanol. Background Art

[0002] Aminopropanol is a chemical substance with the molecular formula C3H9NO. 3-Amino-1-propanol is obtained by catalytic hydrogenation of β-hydroxypropionitrile. β-Hydroxypropionitrile, Raney nickel, ethanol and ammonia are added to the autoclave, hydrogen is passed to 2.94MPa, and the hydrogen pressure is maintained at 100-120℃. After no hydrogen is absorbed, the temperature is kept for 2h. During this reaction process, if the reactor fails and the pressure in the reactor continues to rise, at this time, in order to avoid safety accidents, the gas in the reactor needs to be discharged urgently to reduce the pressure in the reactor.

[0003] As disclosed in publication number CN219673961U, “A safe release system for producing 3-aminopropanol hydrogenation” comprises a first gas storage tank, a gas outlet is provided on the top of the first gas storage tank, a release assembly is installed above the gas outlet, a gas collecting box is installed above the release assembly, the interior of the gas collecting box is connected to the interior of the second gas storage tank via a second connecting pipe, and the interior of the first gas storage tank is connected to the interior of the second gas storage tank via a first connecting pipe.

[0004] The above patent realizes the recovery of the gas urgently discharged in the reactor by the coordinated use of the first gas tank, the second gas tank, the discharge assembly, the first connecting pipe and the second connecting pipe. However, there is still a problem. After the fault is eliminated, the gas stored in the first gas tank and the second gas tank is sent into the reactor for reuse through a vacuum pump. It is necessary to open the connecting valve between the first gas tank and the second gas tank first. However, due to the discharge assembly provided on the first gas tank, the pressure in the first gas tank is greater than the pressure in the second gas tank. There is a safety hazard if the connecting valve is opened rashly.

[0005] This case was created to solve the above problems. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] The utility model aims to provide a hydrogenation discharge mechanism for producing aminopropanol to solve the problems raised in the above-mentioned background technology.

[0008] (II) Technical solution

[0009] To achieve the above objectives, the utility model is implemented through the following technical solutions: a hydrogenation discharge mechanism for producing aminopropanol, comprising a first gas tank and a second gas tank, wherein a connecting pipe 1 and a connecting pipe 2 are connected between the first gas tank and the second gas tank, an air intake pipe is connected to the side wall of the first gas tank, an exhaust pipe is connected to the side wall of the second gas tank, and a gas discharge mechanism is arranged on the connecting pipe 2, wherein the gas discharge mechanism comprises a gas discharge pipe, a pressure relief assembly is arranged in the gas discharge pipe, and the pressure relief assembly comprises an annular fixing plate, wherein the annular fixing plate is fixedly mounted on the inner wall of the gas discharge pipe, the annular fixing plate surrounds the inner wall of the gas discharge pipe, an annular baffle is arranged on the edge of the annular fixing plate, and also comprises a pressure plate, wherein an annular protrusion is arranged on the edge of the pressure plate, and the annular protrusion is between the annular baffle and the inner wall of the gas discharge pipe and is slidably connected thereto.

[0010] Preferably, positioning posts are fixedly provided at equal intervals on the annular fixing plate, springs are sleeved on the positioning posts, the positioning posts pass through the annular protrusion and come out, one end of the spring is fixed on the annular fixing plate, and the other end is fixed on the annular protrusion.

[0011] Preferably, an annular limiting plate is provided on the top of the positioning column, and one end of the air release pipe close to the annular limiting plate is connected to the first air storage tank.

[0012] Preferably, a plurality of air holes are provided on the pressure plate.

[0013] Preferably, the annular fixing plate is provided with air holes at equal intervals.

[0014] Preferably, a plurality of groups of air leakage components are provided in the air leakage pipe.

[0015] (III) Beneficial effects

[0016] After adopting the above technical scheme, the utility model has the following advantages compared with the prior art: the utility model is a hydrogenation release mechanism for producing aminopropanol, through the cooperation between the annular fixed plate, the pressure plate, the annular limit plate and the spring, when it is necessary to recycle the hydrogen and open the valve to connect the first gas storage tank and the second gas storage tank, the gas in the first gas storage tank will impact the pressure plate, and the pressure plate is forced to compress the spring, and the spring absorbs most of the impact force, thereby avoiding the gas from impacting the second gas storage tank all at once and reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the deflation mechanism;

[0019] Figure 3 It is a schematic diagram of the deflation component;

[0020] Figure 4 This is a schematic diagram of a pressure plate;

[0021] In the figure: 1 first gas storage tank, 2 second gas storage tank, 3 connecting pipe 1, 4 connecting pipe 2, 5 intake pipe, 6 exhaust pipe, 7 vent pipe, 8 annular fixing plate, 9 annular baffle, 10 pressure plate, 11 annular protrusion, 12 positioning column, 13 spring, 14 annular limit plate, 15 air hole, 16 air vent. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below through the drawings and embodiments.

[0023] The utility model embodiment provides a hydrogenation discharge mechanism for producing aminopropanol, such as Figure 1-4 As shown, it includes a first gas storage tank 1 and a second gas storage tank 2, a connecting pipe 1 3 and a connecting pipe 2 4 are connected between the first gas storage tank 1 and the second gas storage tank 2, an air intake pipe 5 is connected to the side wall of the first gas storage tank 1, and an exhaust pipe 6 is connected to the side wall of the second gas storage tank 2. It should be noted that the valves on the air intake pipe 5, the exhaust pipe 6 and the connecting pipe 1 3 are all automatic pressure relief valves, and the connecting pipe 2 4 is provided with a deflation mechanism, which includes a deflation pipe 7, and a pressure relief component is provided in the deflation pipe 7. The pressure relief component includes an annular fixing plate 8, and the annular fixing plate 8 is fixed on the inner wall of the deflation pipe 7. The annular fixing plate 8 surrounds the inner wall of the vent pipe 7, and an annular baffle 9 is provided on the edge of the annular fixing plate 8. It also includes a pressure plate 10, and an annular protrusion 11 is provided on the edge of the pressure plate 10. The annular protrusion 11 is between the annular baffle 9 and the inner wall of the vent pipe 7 and is slidably connected thereto. When we need to recycle the hydrogen in the first gas storage tank 1 and the second gas storage tank 2, when the valve is opened to connect, the gas in the first gas storage tank 1 will impact the pressure plate 10, and the pressure plate 10 will bear the pressure for the first time. Multiple groups of venting components can be provided in the vent pipe 7 for multiple pressure absorption.

[0024] Reference Figure 2-4 , positioning columns 12 are fixed at equal intervals on the annular fixing plate 8, and springs 13 are sleeved on the positioning columns 12. The positioning columns 12 penetrate the annular protrusion 11 and pass out. One end of the spring 13 is fixed on the annular fixing plate 8, and the other end is fixed on the annular protrusion 11. The positioning columns 12 limit the pressure plate 10 to prevent it from tilting. When the pressure plate 10 is under pressure, the annular protrusion 11 slides with the annular baffle 9 and the inner wall of the vent pipe 7, and the annular protrusion 11 compresses the spring 13. At this time, the spring 13 absorbs the pressure, avoiding the gas from suddenly impacting the second gas storage tank 2, reducing safety hazards.

[0025] An annular limiting plate 14 is provided on the top of the positioning column 12 , and one end of the air release pipe 7 close to the annular limiting plate 14 is connected to the first air storage tank 1 , and the limiting plate 14 prevents the pressure plate 10 from falling out.

[0026] Reference Figure 2 A plurality of air holes 15 are provided on the pressure plate 10 , and the gas in the first air storage tank 1 enters the second air storage tank 2 through the air holes 15 .

[0027] Reference Figure 3 The annular fixing plate 8 is provided with air holes 16 at equal intervals. When the annular protrusion 11 slides against the annular baffle 9 and the inner wall of the vent pipe 7, the presence of the air holes 16 prevents a closed space from being formed between the annular protrusion 11 and the annular fixing plate 8, thereby enabling smooth sliding.

[0028] Although the 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 hydrogenation discharge mechanism for producing aminopropanol, comprising a first gas storage tank (1) and a second gas storage tank (2), wherein a connecting pipe 1 (3) and a connecting pipe 2 (4) are connected between the first gas storage tank (1) and the second gas storage tank (2), an air inlet pipe (5) is connected to the side wall of the first gas storage tank (1), and an exhaust pipe (6) is connected to the side wall of the second gas storage tank (2), characterized in that: The connecting pipe (4) is provided with a degassing mechanism, the degassing mechanism comprises a degassing pipe (7), a pressure relief assembly is provided in the degassing pipe (7), the pressure relief assembly comprises an annular fixing plate (8), the annular fixing plate (8) is fixed on the inner wall of the degassing pipe (7), the annular fixing plate (8) surrounds the inner wall of the degassing pipe (7), an annular baffle (9) is provided on the edge of the annular fixing plate (8), and also comprises a pressure plate (10), the edge of the pressure plate (10) is provided with an annular protrusion (11), the annular protrusion (11) is between the annular baffle (9) and the inner wall of the degassing pipe (7) and is slidably connected thereto.

2. A hydrogenation release mechanism for producing aminopropanol according to claim 1, characterized in that: Positioning posts (12) are fixedly arranged at equal intervals on the annular fixing plate (8), a spring (13) is sleeved on the positioning posts (12), the positioning posts (12) penetrate the annular protrusion (11) and come out, one end of the spring (13) is fixed on the annular fixing plate (8), and the other end is fixed on the annular protrusion (11).

3. A hydrogenation release mechanism for producing aminopropanol according to claim 2, characterized in that: An annular limiting plate (14) is provided on the top of the positioning column (12), and one end of the air release pipe (7) close to the annular limiting plate (14) is connected to the first air storage tank (1).

4. A hydrogenation release mechanism for producing aminopropanol according to claim 1, characterized in that: The pressure plate (10) is provided with a plurality of air holes (15).

5. A hydrogenation release mechanism for producing aminopropanol according to claim 1, characterized in that: The annular fixing plate (8) is provided with air holes (16) at equal intervals.

6. A hydrogenation release mechanism for producing aminopropanol according to claim 1, characterized in that: A plurality of groups of air leakage components are arranged in the air leakage pipe (7).

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