Hydrolysis kettle liquid level detection device for indole production

Abstract

The utility model discloses a hydrolysis kettle liquid level detection device for indole production, which comprises a hydrolysis kettle main body, a pressure regulating mechanism, a gas guide mechanism and a liquid level detection assembly, one side of the inner wall of each clamping hole is provided with a contact switch, one side of the top of a connecting ring and one side of the bottom of the connecting ring are fixedly provided with contact shafts, and the contact shafts are connected with the pressure regulating mechanism. A bent rod is fixedly arranged on one side of the connecting ring, a first floating ball is fixedly arranged at the bottom of the bent rod, a limiting frame is fixedly arranged on the outer wall of one end of the bent rod, two air guide pipes are installed on one side of the top of the hydrolysis kettle body in a penetrating mode, and an electric pressure release valve is installed between the two air guide pipes; according to the utility model, the first floating ball in the water level container floats through the pressure regulating mechanism to drive the connecting ring to slide up and down on the support frame, so that the contact shaft on the connecting ring is in contact with the contact switch, and then the electric pressure release valve is started to release pressure or air flow in the air guide mechanism is guided into the hydrolysis kettle; and the pressure intensity is kept consistent with the external normal pressure intensity.

Description

Technical Field

[0001] This utility model relates to the technical field of indole production, specifically to a liquid level detection device for a hydrolysis reactor used in indole production. Background Technology

[0002] Indole is a compound formed by the fusion of pyrrole and benzene, also known as benzopyrrole. There are two fusion modes, called indole and isoindole. Indole and its homologues and derivatives are widely found in nature, mainly in natural flower oils such as jasmine, bitter orange blossom, daffodil, and violet. In the medical field, indole has anti-inflammatory, antioxidant, and hormone-regulating effects; therefore, indole solutions are frequently used in drug preparation during medical treatment. In the production process, the hydrolysis of indole is generally carried out in a hydrolysis reactor.

[0003] When using a hydrolysis reactor for indole hydrolysis, it is necessary to constantly monitor the liquid level changes to control the mixing ratio of indole with other materials. Furthermore, when the solution level in the hydrolysis reactor is high, it needs to be drained immediately to prevent excessive internal reaction and the generation of excessive gas, which could lead to excessive pressure and unnecessary safety risks. However, during the reaction in the hydrolysis reactor, indole may generate gas and consume excess oxygen when reacting with different substances, causing continuous pressure changes. If a conventional float is used for liquid level detection, the floating height of the float will deviate from the normal pressure, affecting the accuracy of liquid level detection and recording. Therefore, this design proposes a liquid level detection device for hydrolysis reactors used in indole production. Utility Model Content

[0004] The purpose of this invention is to provide a liquid level detection device for a hydrolysis reactor in indole production, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model proposes a liquid level detection device for a hydrolysis reactor in indole production, comprising a hydrolysis reactor body, a pressure regulating mechanism, a gas guiding mechanism, and a liquid level detection component;

[0006] The pressure regulating mechanism includes a connecting pipe installed on one side of the outer wall of the hydrolysis reactor body. A water level container is installed at one end of the connecting pipe, and the inner wall of the water level container is connected to the inner wall of the hydrolysis reactor body through the connecting pipe. A support frame is fixedly installed at the upper end of one side of the inner wall of the water level container. A locking hole is opened on one side of the top and one side of the bottom of the support frame. A contact switch is installed on one side of the inner wall of each of the two locking holes. A connecting ring is sleeved on the outer wall of the support frame. A contact shaft is fixedly installed on one side of the top and one side of the connecting ring. A bent rod is fixedly installed on one side of the connecting ring. A first float is fixedly installed at the bottom of the bent rod. A limit frame is fixedly installed on the outer wall of one end of the bent rod. Two gas guide pipes are inserted and installed on one side of the top of the hydrolysis reactor body. An electric pressure relief valve is installed between the two gas guide pipes, and the electric pressure relief valve is electrically connected to an external power supply through a contact switch.

[0007] In one example, the gas guiding mechanism includes a gas storage tank installed on the other side of the top of the hydrolysis vessel body, with an exhaust pipe inserted through one end of the gas storage tank and an inlet pipe inserted through one side of the top of the gas storage tank.

[0008] In one example, sealing valves are installed on one side of the exhaust pipe and one side of the intake pipe, and two hoses are inserted into one side of the air tank, with one end of each hose inserted into the interior of an electric pressure relief valve.

[0009] In one example, the liquid level detection component includes a mounting groove formed on one side of the outer wall of the hydrolysis vessel body, the inner wall of the mounting groove being sealed with a transparent panel, and the outer wall of the transparent panel being engraved with scale lines.

[0010] In one example, a support rod is fixedly installed at the edge of the inner wall of the hydrolysis vessel body, a pressure sensor is installed at the top of the support rod, a second float is sleeved on the outer wall of the support rod, and a pointer is fixedly installed on one side of the second float.

[0011] In one example, one end of the support rod passes through the outer wall of one side of the hydrolysis vessel body and is connected to an alarm. The alarm is electrically connected to an external power supply via a pressure sensor. A drain pipe is installed at the bottom of the hydrolysis vessel body.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting a pressure regulating mechanism, when the liquid level inside the hydrolysis vessel is detected by the liquid level detection component, the first float inside the water level container of the pressure regulating mechanism floats, thereby causing the connecting ring to slide up and down on the support frame, so that the contact shaft on it contacts the contact switch, thereby activating the electric pressure relief valve to release pressure or introducing the airflow in the air guiding mechanism into the hydrolysis vessel, so that the pressure inside is consistent with the normal external pressure, avoiding the change in the floating height of the liquid level detection component due to excessively high or low pressure, and solving the problem that the detection accuracy of the floating liquid level detection device is affected by the change in internal pressure of the hydrolysis vessel in actual use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the connection between the air guiding mechanism and the pressure regulating mechanism of this utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the water level container of this utility model;

[0016] Figure 4 Appendix to the specification of this utility model Figure 3 Enlarged structural diagram at point A;

[0017] Figure 5 This is a schematic diagram of the internal structure of the hydrolysis reactor of this utility model;

[0018] Figure 6 This is a schematic diagram of the liquid level detection component of this utility model.

[0019] In the diagram: 1. Hydrolysis vessel body; 2. Pressure regulating mechanism; 201. Connecting pipe; 202. Water level container; 203. Support frame; 204. Contact switch; 205. Connecting ring; 206. Contact shaft; 207. Bent rod; 208. First float; 209. Limiting frame; 210. Gas guide pipe; 211. Electric pressure relief valve; 3. Gas guide mechanism; 301. Gas storage tank; 302. Exhaust pipe; 303. Inlet pipe; 304. Sealing valve; 305. Hose; 4. Liquid level detection component; 401. Mounting slot; 402. Transparent panel; 403. Support rod; 404. Pressure sensor; 405. Second float; 406. Pointer; 407. Alarm; 5. Drain pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-6 This utility model provides a technical solution: a liquid level detection device for a hydrolysis reactor in indole production, comprising a hydrolysis reactor body 1, a pressure regulating mechanism 2, a gas guiding mechanism 3, and a liquid level detection component 4;

[0022] The pressure regulating mechanism 2 includes a connecting pipe 201 installed on one side of the outer wall of the hydrolysis vessel body 1. A water level container 202 is installed at one end of the connecting pipe 201, and the inner wall of the water level container 202 is connected to the inner wall of the hydrolysis vessel body 1 through the connecting pipe 201. A support frame 203 is fixedly installed at the upper end of one side of the inner wall of the water level container 202. A locking hole is provided on one side of the top and one side of the bottom of the support frame 203. A contact switch 204 is installed on one side of the inner wall of each of the two locking holes. A connecting ring 2 is sleeved on the outer wall of the support frame 203. 05. A contact shaft 206 is fixedly provided on one side of the top and one side of the bottom of the connecting ring 205. A bent rod 207 is fixedly provided on one side of the connecting ring 205. A first float ball 208 is fixedly provided at the bottom of the bent rod 207. A limit frame 209 is fixedly provided on the outer wall of one end of the bent rod 207. Two gas guide pipes 210 are inserted and installed on one side of the top of the hydrolysis kettle body 1. An electric pressure relief valve 211 is installed between the two gas guide pipes 210. The electric pressure relief valve 211 is electrically connected to an external power supply through a contact switch 204.

[0023] In use, the indole solution is placed inside the hydrolysis reactor body 1 for hydrolysis. During the hydrolysis process, the liquid level is monitored in real time by the liquid level detection component 4. However, different media are used in the indole hydrolysis process, which may generate or consume gas inside the hydrolysis reactor, causing changes in the pressure inside the reactor body 1. This affects the floating height of the second float 405 in the liquid level detection component 4, making the indication scale of the pointer 406 inaccurate. To address this, a pressure regulating mechanism 2 is designed so that when the amount of gas inside the hydrolysis reactor changes, thus altering the pressure, the pressure is adjusted via a connecting pipe. The pressure inside the water level container 202, which is connected to the main body 1 of the hydrolysis reactor, also changes accordingly. The water level container 202 contains a certain amount of clean water. When the pressure changes, the height of the first float 208 floating on the clean water changes. The first float 208 is connected to the connecting ring 205 via a bent rod 207. As the first float 208 rises and falls on the clean water surface with the pressure change, the connecting ring 205 also slides on the outer wall of the support frame 203, thereby causing the upper and lower contact shafts 206 to rise and fall. When any one of the contact shafts 206 is engaged in the locking holes on the upper and lower sides of the support frame 203 and presses the contact switch 204, the switch is activated as per the attached instruction manual. Figure 2 The wire shown and its connected electric pressure relief valve 211 can be activated, thereby connecting the air guiding mechanism 3 to the inside of the hydrolysis vessel body 1, so that the airflow inside the hydrolysis vessel body 1 is buffered and adjusted to normal pressure, so that the height of the pointer 406 on the liquid level detection component 4 returns to normal, thereby restoring the detection accuracy of the liquid level detection device. This solves the problem in the prior art that the change in the internal pressure of the hydrolysis vessel affects the detection accuracy of the floating liquid level detection device.

[0024] Furthermore, the gas guiding mechanism 3 includes a gas storage tank 301 installed on the other side of the top of the hydrolysis reactor body 1. One end of the gas storage tank 301 is connected to an exhaust pipe 302, and one side of the top of the gas storage tank 301 is connected to an air inlet pipe 303. When the equipment is not in use, the air inlet pipe 303 controls the entry of external air into the gas storage tank 301 through a sealing valve 304 to make its airflow balanced and the internal pressure consistent with the external pressure.

[0025] A sealing valve 304 is installed on one side of the exhaust pipe 302 and one side of the intake pipe 303. Two hoses 305 are inserted and connected to one side of the gas storage tank 301, and one end of each hose 305 is inserted and connected to the inside of the electric pressure relief valve 211. If gas is generated during the indole hydrolysis process, it may contain some gas with slight toxicity. When this gas is released from the pressure regulating mechanism 2, it is introduced into the gas storage tank 301 through the hose 305. The gas storage tank 301 is squeezed and connected to the collection device through the exhaust pipe 302. The gas can be discharged by opening the sealing valve 304, thereby regulating the pressure inside the hydrolysis reactor body 1. At the same time, the gas will not be randomly discharged and inhaled by the staff, causing safety hazards.

[0026] Furthermore, the liquid level detection component 4 includes an installation groove 401 opened on one side of the outer wall of the hydrolysis vessel body 1. A transparent panel 402 is sealed and installed on the inner wall of the installation groove 401. The outer wall of the transparent panel 402 is engraved with scale lines, and the liquid level can be clearly observed through the scale lines on the transparent panel 402.

[0027] A support rod 403 is fixedly installed on the edge of the inner wall of the hydrolysis vessel body 1. A pressure sensor 404 is installed on the top of the support rod 403. A second float 405 is sleeved on the outer wall of the support rod 403. A pointer 406 is fixedly installed on one side of the second float 405. The pointer 406 is adjusted by the second float 405 floating and changing the height of the liquid level in the hydrolysis vessel, thereby facilitating the staff to monitor the liquid level of the indole solution in the hydrolysis vessel in real time.

[0028] Furthermore, one end of the support rod 403 passes through the outer wall of one side of the hydrolysis vessel body 1 and is connected to an alarm 407. The alarm 407 is electrically connected to an external power supply through a pressure sensor 404. A drain pipe 5 is installed at the bottom of the hydrolysis vessel body 1. When the liquid level of the indole solution inside the hydrolysis vessel body 1 reaches a certain height, the second float 405 floats and contacts the pressure sensor 404 at the top of the support rod 403. The pressure sensor 404 triggers a switch, which activates the alarm 407 and causes it to sound an alarm. This allows the staff to open the drain pipe 5 immediately to drain and collect the indole solution, thus avoiding safety hazards caused by excessive internal pressure due to excessive liquid level.

[0029] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on its differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so they are described more simply; relevant parts can be referred to the descriptions of the method embodiments.

[0030] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A liquid level detection device for a hydrolysis reactor used in indole production, comprising a hydrolysis reactor body (1), a pressure regulating mechanism (2), a gas guiding mechanism (3), and a liquid level detection component (4); Its features are: The pressure regulating mechanism (2) includes a connecting pipe (201) installed on one side of the outer wall of the hydrolysis vessel body (1). A water level container (202) is installed at one end of the connecting pipe (201), and the inner wall of the water level container (202) is connected to the inner wall of the hydrolysis vessel body (1) through the connecting pipe (201). A support frame (203) is fixedly installed on the upper end of one side of the inner wall of the water level container (202). A locking hole is provided on one side of the top and one side of the bottom of the support frame (203). A contact switch (204) is installed on one side of the inner wall of each of the two locking holes. A connecting ring (204) is sleeved on the outer wall of the support frame (203). 5) A contact shaft (206) is fixedly provided on one side of the top and one side of the bottom of the connecting ring (205). A bent rod (207) is fixedly provided on one side of the connecting ring (205). A first float ball (208) is fixedly provided at the bottom of the bent rod (207). A limiting frame (209) is fixedly provided on the outer wall of one end of the bent rod (207). Two gas guide pipes (210) are inserted and installed on one side of the top of the hydrolysis reactor body (1). An electric pressure relief valve (211) is installed between the two gas guide pipes (210). The electric pressure relief valve (211) is electrically connected to an external power supply through a contact switch (204).

2. The liquid level detection device for a hydrolysis reactor in indole production according to claim 1, characterized in that: The gas guiding mechanism (3) includes a gas storage tank (301) installed on the other side of the top of the hydrolysis vessel body (1). One end of the gas storage tank (301) is connected to an exhaust pipe (302), and one side of the top of the gas storage tank (301) is connected to an air inlet pipe (303).

3. The liquid level detection device for a hydrolysis reactor in indole production according to claim 2, characterized in that: A sealing valve (304) is installed on one side of the exhaust pipe (302) and one side of the intake pipe (303). Two hoses (305) are inserted and connected to one side of the gas storage tank (301), and one end of each hose (305) is inserted and connected to the inside of the electric pressure relief valve (211).

4. The liquid level detection device for a hydrolysis reactor in indole production according to claim 1, characterized in that: The liquid level detection component (4) includes an installation groove (401) opened on one side of the outer wall of the hydrolysis vessel body (1). A transparent panel (402) is sealed on the inner wall of the installation groove (401), and scale lines are engraved on the outer wall of the transparent panel (402).

5. The liquid level detection device for a hydrolysis reactor in indole production according to claim 1, characterized in that: A support rod (403) is fixedly installed at the edge of the inner wall of the hydrolysis vessel body (1). A pressure sensor (404) is installed on the top of the support rod (403). A second float (405) is sleeved on the outer wall of the support rod (403). A pointer (406) is fixedly installed on one side of the second float (405).

6. The liquid level detection device for a hydrolysis reactor in indole production according to claim 5, characterized in that: One end of the support rod (403) passes through the outer wall of one side of the hydrolysis vessel body (1) and is connected to an alarm (407). The alarm (407) is electrically connected to an external power supply through a pressure sensor (404). A drain pipe (5) is installed at the bottom of the hydrolysis vessel body (1).

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