Amino acid condensation reaction device

Abstract

The utility model discloses an amino acid condensation reaction device which is characterized in that the output end of a dissolving kettle is connected with the input end of a liquid caustic soda head tank, the output end of the liquid caustic soda head tank is connected with one end of a first valve, and the other end of the first valve is connected with a first feeding port; the tert-butyl carbonate storage tank is connected with the input end of the pump, the output end of the pump is connected with the input end of the tert-butyl carbonate head tank, the output end of the tert-butyl carbonate head tank is connected with one end of the first valve, one end of the second valve is connected with the first feeding port, and one end of the second valve is connected with the process water supply unit; one end of the first extraction valve is connected with the exhaust port, the other end of the first extraction valve is connected with the extraction unit, one end of the third valve is connected with the exhaust port, the other end of the third valve is connected with the tail gas absorption assembly, and a flame arrester is arranged between the third valve and the tail gas absorption assembly. According to the utility model, the reaction safety can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical reaction equipment, in particular to an amino acid condensation reaction device. Background Art

[0002] Amino acid condensation is a condensation reaction between two amino acid molecules, in which the hydrogen in the generated water molecule comes from the amino group and the carboxyl group.

[0003] The amino acid dehydration condensation equipment disclosed in CN212524051U includes a kettle body and a feeding mechanism, wherein the feeding mechanism is arranged at the upper end of the kettle body, and the kettle body includes a heat-insulating outer shell, a fixing seat, a feeding port, a temperature sensor and an inner coating, wherein the heat-insulating outer shell is arranged on the outer side of the kettle body, the fixing seat is arranged on the upper end of the kettle body, the feeding port is arranged on the lower end of the kettle body, the temperature sensor is arranged on the inner wall of the kettle body, and the inner coating is arranged on the inner wall of the kettle body.

[0004] The feeding mechanism includes a mounting block, a support rod, a material box and a feeding pipe. The mounting block is fixedly mounted on the upper end of the kettle body, the support rod is arranged on the upper end of the mounting block, the material box is arranged on the upper end of the support rod, the feeding pipe is arranged on the lower end of the material box, and the other end of the feeding pipe is arranged inside the kettle body.

[0005] For the above-mentioned reactor, raw materials such as amino acids and tert-butyl carbonate are directly added into the reactor, and the reaction is carried out after the raw materials are stirred by a stirrer installed on the reactor. However, gas will inevitably be generated during the feeding process and the reaction process, but the reactor body is not equipped with corresponding treatment. Therefore, after the reaction is completed, the gas is directly discharged through the exhaust port set on the reactor body. Although the amount of these gases is not large, the chemical reaction gases will more or less affect the human body. Therefore, the above-mentioned reactor has the defect of being unsafe. Summary of the invention

[0006] The utility model provides an amino acid condensation reaction device, and the utility model can improve the safety of the reaction.

[0007] The technical solutions to the above technical problems are as follows:

[0008] An amino acid condensation reaction device comprises a reactor equipped with a stirrer, the reactor is provided with an amino acid feeding port, characterized in that the reactor is provided with a first feeding port and an exhaust port, and further comprises a dissolving kettle for dissolving and fixing sodium hydroxide, a liquid alkali high-level tank, a tert-butyl carbonate storage tank, a pump, a tert-butyl carbonate high-level tank, a tail gas absorption component, a gas extraction unit, a first gas extraction valve, a first valve, a second valve, and a third valve;

[0009] The output end of the dissolving kettle is connected to the input end of the liquid alkali high-level tank, the output end of the liquid alkali high-level tank is connected to one end of the first valve, and the other end of the first valve is connected to the first feeding port;

[0010] The tert-butyl carbonate storage tank is connected to the input end of the pump, the output end of the pump is connected to the input end of the tert-butyl carbonate high-level tank, the output end of the tert-butyl carbonate high-level tank is connected to one end of the first valve, one end of the second valve is connected to the first feeding port, and one end of the second valve is connected to the process water supply unit;

[0011] One end of the first air extraction valve is connected to the exhaust port, the other end of the first air extraction valve is connected to the air extraction unit, one end of the third valve is connected to the exhaust port, the other end of the third valve is connected to the exhaust gas absorption component, and a flame arrester is arranged between the third valve and the exhaust gas absorption component.

[0012] In the utility model, an exhaust port is provided on the reactor, and the exhaust port is connected to the exhaust system through the first exhaust valve, and the reactor can be exhausted through the exhaust system. The exhaust port is connected to the tail gas absorption component through the third valve, and the gas generated in the reactor can be absorbed by the tail gas absorption component. A flame arrester is provided between the third valve and the tail gas absorption component, and the safety of the tail gas emission process is improved by the flame arrester. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the amino acid condensation reaction device of the utility model.

[0014] Figure 2 for Figure 1 Enlarged view of part P in .

[0015] Figure 3 for Figure 1 Enlarged view of the Q section in .

[0016] Markings in the accompanying drawings:

[0017] Reactor 1, jacket 1a, amino acid feeding port 1b, cooling space 1c, first feeding port 1d, exhaust port 1e, dissolving kettle 2, second water inlet 2a, sodium hydroxide feeding port 2b, first cooling space 2c, first exhaust port 2d, liquid alkali high-level tank 3, third exhaust port 3a, first air extraction port 3b, tert-butyl carbonate storage tank 4, pump 5, tert-butyl carbonate high-level tank 6, second exhaust port 6a, exhaust unit 7, first air extraction valve 7a, first valve 8, second valve 9, third valve 10, flame arrester 10a, fourth valve 11, fifth valve 12, eleventh valve 13, flow meter 14, bypass valve 15, first jacket 16, sixth valve 17, seventh valve 18, eighth valve 19, first pipeline flame arrester 20, ninth valve 21, tenth valve 22.

[0018] Tail gas absorption component VT, chilled brine water supply unit BRS, chilled brine return unit BRR, process water supply unit PWS, cooling water supply unit CWS, cooling water return unit CWR, first temperature sensor T1. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] First of all, it should be explained that the described embodiments are merely embodiments derived from the explanation of the drawings, and are not all embodiments of the present utility model. As for the directional words used, such as "upper end" and "lower end", they are merely further explanations of the drawings, rather than limitations on the present utility model.

[0021] like Figures 1 to 3 As shown, the amino acid condensation reaction device of the utility model comprises a reactor 1 equipped with a stirrer, a dissolving kettle 2 for dissolving sodium hydroxide, a liquid alkali high-level tank 3, a tert-butyl carbonate storage tank 4, a pump 5, a tert-butyl carbonate high-level tank 6, a tail gas absorption component VT, a gas extraction unit 7, a first gas extraction valve 7a, a first valve 8, a second valve 9, and a third valve 10. The structure of each part and the structure between each part are described in detail below:

[0022] The reactor 1 is provided with a jacket 1a, and a cooling space 1c is formed between the reactor 1 and the jacket 1a. The present embodiment further comprises a chilled brine water supply unit BRS, a chilled brine water return unit BRR, a fourth valve 11, and a fifth valve 12. The reactor 1 is provided with a jacket 1a, and a cooling space 1c is formed between the reactor 1 and the jacket 1a. The jacket 1a is provided with a water inlet and a water return port. The chilled brine water supply unit BRS is connected to one end of the fourth valve 11, and the other end of the fourth valve 11 is connected to the water inlet on the jacket 1a. The chilled brine water return unit BRR is connected to one end of the fifth valve 12, and the other end of the fifth valve 12 is connected to the water return port on the jacket 1a.

[0023] The reactor 1 is provided with an amino acid feeding port 1b, through which amino acids can be fed into the reactor 1. The reactor 1 is provided with a first feeding port 1d and an exhaust port 1e, and the first feeding port 1d is used for feeding liquid alkali and tert-butyl carbonate. The reactor 1 is provided with a temperature sensor for detecting the temperature of the solution in the reactor 1, and the temperature sensor is connected to the electrical controller, which is also connected to the cooling water supply unit CWS and the cooling water return unit CWR, so as to facilitate the control of the temperature of the solution in the reactor 1.

[0024] The output end of the dissolving kettle 2 is connected to the input end of the liquid alkali high-level tank 3, the output end of the liquid alkali high-level tank 3 is connected to one end of the first valve 8, and the other end of the first valve 8 is connected to the first feeding port 1d. The liquid alkali high-level tank 3 is provided with a liquid level sensor.

[0025] The tert-butyl carbonate storage tank 4 is connected to the input end of the pump 5, and the output end of the pump 5 is connected to the input end of the tert-butyl carbonate high-level tank 6. The pump 5 preferably adopts a diaphragm pump. The output end of the tert-butyl carbonate high-level tank 6 is connected to one end of the first valve 8, one end of the second valve 9 is connected to the first feeding port 1d, and one end of the second valve 9 is connected to the process water supply unit PWS. The first valve 8 and the second valve 9 are preferably ball valves. The process water in the utility model is tap water or deionized water. A liquid level sensor is provided on the tert-butyl carbonate high-level tank 6.

[0026] One end of the first air extraction valve 7a is connected to the exhaust port 1e, and the other end of the first air extraction valve 7a is connected to the air extraction unit 7. The first air extraction valve 7a preferably adopts a ball valve. One end of the third valve 10 is connected to the exhaust port 1e. The third valve 10 preferably adopts a ball valve. The other end of the third valve 10 is connected to the exhaust port 1e. A flame arrester 10a is arranged between the third valve 10 and the exhaust gas absorption component VT. The exhaust gas absorption component VT is a prior art and will not be described here.

[0027] The utility model further includes an eleventh valve 13, a flow meter 14, and a bypass valve 15. The dissolving kettle 2 is provided with a second water inlet 2a and a sodium hydroxide feeding port 2b. One end of the eleventh valve 13 is connected to the second water inlet 2a, and the other end of the eleventh valve 13 is connected to one end of the flow meter 14. The other end of the flow meter 14 is connected to the process water supply unit PWS, and the bypass valve 15 is connected in parallel with the flow meter 14. When adding water to the dissolving kettle 2, the process water output by the process water supply unit PWS flows preferentially through the flow meter 14, the eleventh valve 13, and the second water inlet 2a before entering the dissolving kettle 2, and the branch where the bypass valve 15 is located is used as a backup.

[0028] The utility model further comprises a first jacket 16, a cooling water supply unit CWS, a cooling water return unit CWR, a sixth valve 17, a seventh valve 18, and a first temperature sensor T1. After the first jacket 16 cooperates with the dissolving kettle 2, a first cooling space 2c is formed between the dissolving kettle 2 and the first jacket 16. The cooling water supply unit CWS is connected to one end of the sixth valve 17, the other end of the sixth valve 17 is connected to the first jacket 16, the cooling water return unit CWR is connected to one end of the seventh valve 18, the other end of the seventh valve 18 is connected to the first jacket 16, and the first temperature sensor T1 is arranged in the dissolving kettle 2. A stirrer is arranged on the dissolving kettle 2, and when sodium hydroxide is dissolved in water, it is stirred by the stirrer.

[0029] Since sodium hydroxide releases heat when dissolved in water, in order to control the heat in the dissolving kettle 2, cooling water is input into the first cooling space 2c, and the dissolving kettle 2 is cooled by the cooling water. The temperature of the solution in the dissolving kettle 2 is detected by the first temperature sensor T1.

[0030] In the present invention, the dissolving kettle 2 is provided with a first exhaust port 2d, and also includes an eighth valve 19, one end of the eighth valve 19 is connected to the first exhaust port 2d, and the other end of the eighth valve 19 is connected to the tail gas absorption component VT. When gas is generated in the dissolving kettle 2, the eighth valve 19 is opened, and the tail gas absorption component VT absorbs the gas in the dissolving kettle 2.

[0031] The tert-butyl carbonate header tank 6 is provided with a second exhaust port 6a, and further includes a first pipeline flame arrester 20, one end of the first pipeline flame arrester 20 is connected to the second exhaust port 6a, and the other end of the first pipeline flame arrester 20 is connected to the tail gas absorption component VT. After gas is generated in the tert-butyl carbonate header tank 6, the first pipeline flame arrester 20 is opened, and the gas flows through the first pipeline flame arrester 20 and is absorbed by the tail gas absorption component VT.

[0032] The liquid alkali high-level tank 3 is provided with a third exhaust port 3a, and also includes a ninth valve 21, one end of the ninth valve 21 is connected to the third exhaust port 3a, and the other end of the ninth valve 21 is connected to the tail gas absorption component VT. After gas is generated in the liquid alkali high-level tank 3, the ninth valve 21 is opened, and the gas flows through the ninth valve 21 and is absorbed by the tail gas absorption component VT.

[0033] The liquid alkali high-level tank 3 is provided with a first air extraction port 3b, and further comprises a tenth valve 22, one end of the tenth valve 22 is connected to the first air extraction port 3b, and the other end of the tenth valve 22 is connected to the air extraction unit 7. The air extraction unit 7 can be used to extract air from the liquid alkali high-level tank 3.

[0034] The working steps of the utility model are as follows:

[0035] S1, put solid sodium hydroxide into the dissolving kettle 2, add process water into the dissolving kettle 2 through the process water supply unit PWS, flow meter 14, and eleventh valve 13, turn on the agitator on the dissolving kettle 2, stir and prepare the solution for standby. During the preparation process, open the sixth valve 17 and the seventh valve 18, turn on the cooling water system, and the cooling water output by the cooling water supply unit CWS enters the first cooling space 2c through the sixth valve 17 to cool the dissolving kettle 2. After the water input into the first cooling space 2c is full, it flows back to the cooling water return unit CWR through the seventh valve 18. After cooling, the obtained liquid alkali is transported to the liquid alkali high-level tank 3.

[0036] S2, amino acids are added into the reactor 1 through the amino acid feeding port 1b, and the tert-butyl carbonate in the tert-butyl carbonate storage tank 4 is transported to the tert-butyl carbonate high-level tank 6 by the pump 5. The reactor 1 is stirred, the fourth valve 11 and the fifth valve 12 are opened, and the frozen brine output by the frozen brine supply unit BRS enters the cooling space 1c after passing through the fourth valve 11, and the amino acids in the reactor 1 are cooled by the frozen brine, and the reaction is ready to start after reaching the temperature.

[0037] S3, turn on the agitator on the reactor 1, control the temperature, open the discharge valves at the bottom of the tert-butyl carbonate high-level tank 6 and the liquid alkali high-level tank 3, and open the first valve 8, tert-butyl carbonate and liquid alkali enter the reactor 1, and control the solution temperature in the reactor 1 by the frozen brine in the cooling space 1c until the reaction is completed.

[0038] Finally, it should be noted that the above-described implementation mode is only a preferred embodiment of the utility model to illustrate the technical solution of the utility model, and does not limit it, let alone limit the protection scope of the utility model; although the utility model is described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the protection scope of the claims.

Claims

1. An amino acid condensation reaction device, comprising a reactor (1) equipped with a stirrer, the reactor (1) being provided with an amino acid feeding port (1b), characterized in that: The reaction kettle (1) is provided with a first feeding port (1d) and an exhaust port (1e), and further comprises a dissolving kettle (2) for dissolving and fixing sodium hydroxide, a liquid alkali high-level tank (3), a tert-butyl carbonate storage tank (4), a pump (5), a tert-butyl carbonate high-level tank (6), a tail gas absorption component (VT), an exhaust unit (7), a first exhaust valve (7a), a first valve (8), a second valve (9), and a third valve (10); The output end of the dissolving kettle (2) is connected to the input end of the liquid alkali high-level tank (3), the output end of the liquid alkali high-level tank (3) is connected to one end of the first valve (8), and the other end of the first valve (8) is connected to the first feeding port (1d); The tert-butyl carbonate storage tank (4) is connected to the input end of the pump (5), the output end of the pump (5) is connected to the input end of the tert-butyl carbonate high-level tank (6), the output end of the tert-butyl carbonate high-level tank (6) is connected to one end of the first valve (8), one end of the second valve (9) is connected to the first feeding port (1d), and one end of the second valve (9) is connected to the process water supply unit (PWS); One end of the first air extraction valve (7a) is connected to the exhaust port (1e), the other end of the first air extraction valve (7a) is connected to the air extraction unit (7), one end of the third valve (10) is connected to the exhaust port (1e), the other end of the third valve (10) is connected to the tail gas absorption component (VT), and a flame arrester (10a) is provided between the third valve (10) and the tail gas absorption component (VT).

2. The amino acid condensation reaction device according to claim 1, characterized in that: The invention also comprises a chilled brine water supply unit (BRS), a chilled brine water return unit (BRR), a fourth valve (11), and a fifth valve (12). A jacket (1a) is provided on the reactor (1), a cooling space (1c) is formed between the reactor (1) and the jacket (1a), a water inlet and a water return port are provided on the jacket (1a), the chilled brine water supply unit (BRS) is connected to one end of the fourth valve (11), the other end of the fourth valve (11) is connected to the water inlet on the jacket (1a), the chilled brine water return unit (BRR) is connected to one end of the fifth valve (12), and the other end of the fifth valve (12) is connected to the water return port on the jacket (1a).

3. The amino acid condensation reaction device according to claim 1, characterized in that: The dissolving kettle (2) further comprises an eleventh valve (13), a flow meter (14), and a bypass valve (15). A second water inlet (2a) and a sodium hydroxide feeding port (2b) are provided on the dissolving kettle (2). One end of the eleventh valve (13) is connected to the second water inlet (2a), the other end of the eleventh valve (13) is connected to one end of the flow meter (14), the other end of the flow meter (14) is connected to a process water supply unit (PWS), and the bypass valve (15) is connected in parallel with the flow meter (14).

4. The amino acid condensation reaction device according to claim 1, characterized in that: The invention also comprises a first jacket (16), a cooling water supply unit (CWS), a cooling water return unit (CWR), a sixth valve (17), a seventh valve (18), and a first temperature sensor (T1). When the first jacket (16) is matched with the dissolving kettle (2), a first cooling space (2c) is formed between the dissolving kettle (2) and the first jacket (16). The cooling water supply unit (CWS) is connected to one end of the sixth valve (17), and the other end of the sixth valve (17) is connected to the first jacket (16). The cooling water return unit (CWR) is connected to one end of the seventh valve (18), and the other end of the seventh valve (18) is connected to the first jacket (16). The first temperature sensor (T1) is arranged in the dissolving kettle (2).

5. The amino acid condensation reaction device according to claim 1, characterized in that: The dissolving kettle (2) is provided with a first exhaust port (2d) and also includes an eighth valve (19), one end of the eighth valve (19) is connected to the first exhaust port (2d), and the other end of the eighth valve (19) is connected to the tail gas absorption component (VT).

6. The amino acid condensation reaction device according to claim 1, characterized in that: The tert-butyl carbonate header tank (6) is provided with a second exhaust port (6a), and further comprises a first pipeline flame arrester (20), one end of the first pipeline flame arrester (20) being connected to the second exhaust port (6a), and the other end of the first pipeline flame arrester (20) being connected to the tail gas absorption assembly (VT).

7. The amino acid condensation reaction device according to claim 1, characterized in that: The liquid alkali high-level tank (3) is provided with a third exhaust port (3a) and also includes a ninth valve (21), one end of the ninth valve (21) is connected to the third exhaust port (3a), and the other end of the ninth valve (21) is connected to the tail gas absorption component (VT).

8. The amino acid condensation reaction device according to claim 1, characterized in that: The liquid alkali high-level tank (3) is provided with a first air extraction port (3b) and also includes a tenth valve (22), one end of the tenth valve (22) is connected to the first air extraction port (3b), and the other end of the tenth valve (22) is connected to the air extraction unit (7).

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