Reboiler for inhibiting aldehyde decomposition

Abstract

A reboiler for inhibiting aldehyde decomposition relates to the technical field of chemical equipment and comprises a shell, an aldehyde reactor, a steam pipeline, a heating cavity and a make-up water tank, the aldehyde reactor is arranged in the shell, a raw material inlet pipe and a reaction outlet pipe are arranged on the upper side wall and the lower side wall of the aldehyde reactor respectively, and a steam storage cavity and the heating cavity are arranged above and below the aldehyde reactor respectively. A heater is mounted in the heating cavity, the heating cavity is communicated with the steam storage cavity through a steam pipeline, and the steam pipeline penetrates through the aldehyde reactor; the steam storage cavity is connected with the make-up water tank through a first pipeline, make-up water and a condenser are arranged in the make-up water tank, a demister is arranged on the upper portion in the make-up water tank, a steam outlet pipe penetrates through the demister, the outlet end of the steam outlet pipe is located outside the make-up water tank, a make-up water inlet pipe is arranged on the side wall of the lower portion of the make-up water tank, and the bottom end of the make-up water tank is communicated with the heating cavity through a second pipeline. The reboiler for inhibiting aldehyde decomposition effectively inhibits aldehyde decomposition, and also realizes multiple functions of one device.

Description

Technical Field:

[0001] The utility model relates to the technical field of chemical equipment, and particularly relates to a reboiler for inhibiting the decomposition of aldehydes. Background Art:

[0002] The reboiler heats water to vaporize it, and the formed steam heats the reactor, so that the reactor is heated up to the reaction temperature. Generally, the reaction temperature of the aldehyde decomposition reaction is above 150°C. The existing reboiler can only heat up, accelerating the decomposition reaction of aldehydes, and does not have the function of inhibiting the decomposition of aldehydes, which cannot meet the actual production requirements. Content of the Utility Model:

[0003] The purpose of the utility model is to overcome the deficiencies of the above-mentioned existing technologies, and provide a reboiler for inhibiting the decomposition of aldehydes, which can not only heat up to accelerate the aldehyde decomposition reaction, but also cool down to inhibit the aldehyde classification.

[0004] To solve the problems in the background art, the utility model adopts the following technical scheme: It includes a shell, an aldehyde reactor, a steam pipeline, a heating chamber, and a makeup water tank. An aldehyde reactor is arranged inside the shell. The upper and lower side walls of the aldehyde reactor are respectively provided with a raw material inlet pipe and a reaction outlet pipe. A steam storage chamber and a heating chamber are respectively arranged above and below the aldehyde reactor. The steam storage chamber and the heating chamber are both installed on the shell. A heater is installed inside the heating chamber. The heating chamber and the steam storage chamber are connected through a steam pipeline. The top end of the steam pipeline is located inside the steam storage chamber. The steam pipeline passes through the aldehyde reactor, and the bottom end of the steam pipeline is located above the water surface of the heating chamber; the steam storage chamber is connected to the makeup water tank through a pipeline one. The makeup water tank is provided with makeup water and a condenser. An eliminator is arranged in the upper part of the makeup water tank. A steam outlet pipe passes through the eliminator, and the outlet end of the steam outlet pipe is located outside the makeup water tank. A makeup water inlet pipe is arranged on the lower side wall of the makeup water tank. The bottom end of the makeup water tank is connected to the heating chamber through a pipeline two.

[0005] A plurality of the steam pipelines are provided, all of which are vertically arranged and parallel to each other.

[0006] A blowdown pipe is arranged on the pipeline two.

[0007] Electromagnetic valves are installed on both the pipeline one and the pipeline two. The electromagnetic valves are connected to an external controller through a ground wire.

[0008] A thermometer is installed on the aldehyde reactor. The thermometer is connected to an external controller through a wire.

[0009] The heater and the condenser are connected to an external controller through wires.

[0010] The beneficial effects of the present utility model are comprehensive functions and convenient use. By heating the aldehyde reactor through a heater and a steam pipe, the temperature of the aldehyde reactor is increased, thereby accelerating the decomposition of aldehydes. By injecting condenser water and makeup water, the heating speed of the heater is reduced, thereby reducing the reaction temperature of the aldehyde reactor, achieving the inhibition of aldehyde decomposition. The present utility model achieves the purpose of having multiple functions in one device, greatly meeting the actual production requirements. Brief Description of the Drawings:

[0011] Figure 1 It is a schematic structural diagram of the present utility model. Specific Embodiments:

[0012] Referring to Figure 1 , the present utility model specifically adopts the following embodiments: It includes a housing 1, an aldehyde reactor 3, a steam pipe 5, a heating chamber 6, and a makeup water tank 12. An aldehyde reactor 3 is provided inside the housing 1. Raw material inlet pipes 2 and reaction outlet pipes 4 are respectively provided on the upper and lower side walls of the aldehyde reactor 3. A steam storage chamber 3 and a heating chamber 6 are respectively provided above and below the aldehyde reactor 3. Both the steam storage chamber 3 and the heating chamber 6 are installed on the housing 1. A heater 7 is installed inside the heating chamber 6. The heating chamber 6 and the steam storage chamber 10 are connected through a steam pipe 5. The top end of the steam pipe 5 is located inside the steam storage chamber 10. The steam pipe 5 passes through the aldehyde reactor 3, and the bottom end of the steam pipe 5 is located above the water surface in the heating chamber 6. The steam storage chamber 10 is connected to the makeup water tank 12 through a pipe 11. Makeup water and a condenser 15 are provided inside the makeup water tank 12. A demister 13 is provided in the upper part of the makeup water tank 12. A steam outlet pipe 14 passes through the demister 13, and the outlet end of the steam outlet pipe 14 is located outside the makeup water tank 12. A makeup water inlet pipe 16 is provided on the lower side wall of the makeup water tank 12. The bottom end of the makeup water tank 12 is connected to the heating chamber 6 through a pipe 2 8. A plurality of the steam pipes 5 are provided, all arranged vertically and parallel to each other. A sewage discharge pipe 9 is provided on the pipe 2 8. Electromagnetic valves are installed on both the pipe 11 and the pipe 2 8, and the electromagnetic valves are connected to an external controller through a ground wire. A thermometer is installed on the aldehyde reactor 3, and the thermometer is connected to an external controller through a wire. The heater 7 and the condenser 15 are connected to an external controller through wires.

[0013] A thermometer is installed on the aldehyde reactor 3. By observing the thermometer, it can be known whether the temperature inside the aldehyde reactor 3 reaches the reaction requirement.

[0014] When the reboiler for inhibiting aldehyde decomposition needs aldehyde decomposition, the raw materials are transported into the aldehyde reactor 3 through the raw material inlet pipe 3. The condenser 15 in the makeup water tank 12 does not work. The normal temperature water in the makeup water tank 12 is transported into the heating chamber 6 through the pipe 8. The heater 7 heats the normal temperature water. The heat generated during the heating process can be transferred to the aldehyde reactor 3. At the same time, the hot steam generated by the vaporization of the heated water enters the steam pipe 5. The steam pipe 5 passes through the aldehyde reactor 3 to heat the aldehyde reactor 3, so that the aldehyde reaches the reaction temperature. In order to accelerate heat transfer, several steam pipes 5 are provided, which increases the heat dissipation area and speed. The hot steam passes through the steam pipe 5 and enters the steam storage chamber 10, and then re-enters the makeup water tank 12 through the pipe 11. Due to the physical properties of the steam, the steam enters the upper part of the makeup water tank 12. It passes through the demister 13 to remove the mist, and finally the clean steam is discharged through the steam outlet pipe 14. The substances after the aldehyde reaction are discharged through the reaction outlet pipe 4.

[0015] When the reboiler for inhibiting aldehyde decomposition needs to inhibit aldehyde decomposition, the condenser 15 is controlled to start by the external controller 15. The condenser 15 cools the normal temperature water in the makeup water tank 12. The cooled chilled water is transported into the heating chamber 6 and mixed with the hot water in the original heating chamber 6, reducing the water temperature and preventing the formation of hot steam to heat the aldehyde reactor 3. Thus, the temperature of the aldehyde reactor 3 is reduced to below the reaction temperature at which aldehyde substances decompose, achieving the work of inhibiting aldehyde decomposition.

[0016] When the water temperature in the heating chamber 6 decreases, the heating duration of the heater 7 becomes longer, which also plays a role in cooling and inhibiting aldehyde reaction.

[0017] The operations of the heater 7 and the condenser 15 are both controlled by the external controller, and the operations of the heater 7 and the condenser 15 are regulated through the thermometer.

[0018] When the condenser 15 works, the steam in the makeup water tank 12 is condensed into small water droplets and falls on the bottom of the makeup water tank 12, which also realizes the function of water circulation and avoids waste of water resources.

[0019] Electromagnetic valves are installed on both the pipe 11 and the pipe 8. The electromagnetic valves are controlled to open and close by the external controller, thereby controlling the output of steam and the transportation of makeup water.

[0020] In summary, the reboiler for inhibiting aldehyde decomposition has comprehensive functions and is convenient to use. It heats the aldehyde reactor through the heater and the steam pipe, increasing the temperature of the aldehyde reactor, thereby accelerating aldehyde decomposition; by injecting the condenser and makeup water, the heating speed of the heater is reduced, thereby reducing the reaction temperature of the aldehyde reactor, achieving the inhibition of aldehyde decomposition. The utility model achieves the purpose of having multiple functions in one device, greatly meeting the actual production requirements.

Claims

1. A reboiler for inhibiting the decomposition of aldehydes, characterized in that: The invention comprises a shell (1), an aldehyde reactor (3), a steam pipe (5), a heating chamber (6) and a feed water tank (12). The shell (1) is provided with an aldehyde reactor (3). The upper and lower side walls of the aldehyde reactor (3) are provided with a raw material inlet pipe (2) and a reaction outlet pipe (4), respectively. A steam storage chamber (10) and a heating chamber (6) are provided above and below the aldehyde reactor (3), respectively. The steam storage chamber (10) and the heating chamber (6) are both installed on the shell (1). A heater (7) is installed in the heating chamber (6). The heating chamber (6) and the steam storage chamber (10) are connected via a steam pipe (5). The top end of the steam pipe (5) is located at the steam storage chamber (10). ), the steam pipe (5) passes through the aldehyde reactor (3), and the bottom end of the steam pipe (5) is located above the water surface of the heating chamber (6); the steam storage chamber (10) is connected to the feed water tank (12) through the pipe one (11), the feed water tank (12) is provided with feed water and a condenser (15), a demister (13) is provided at the upper part of the feed water tank (12), a steam outlet pipe (14) passes through the demister (13), the outlet end of the steam outlet pipe (14) is located outside the feed water tank (12), a feed water inlet pipe (16) is provided on the lower side wall of the feed water tank (12), and the bottom end of the feed water tank (12) is connected to the heating chamber (6) through the pipe two (8).

2. A reboiler for inhibiting aldehyde decomposition according to claim 1, characterized in that: The steam pipes (5) are provided in a plurality of ways, all of which are arranged vertically and parallel to each other.

3. A reboiler for inhibiting aldehyde decomposition according to claim 1, characterized in that: The second pipeline (8) is provided with a sewage pipe (9).

4. A reboiler for inhibiting the decomposition of aldehydes according to claim 1 or 3, characterized in that: The pipeline 1 (11) and the pipeline 2 (8) are both equipped with electromagnetic valves, which are connected to an external controller via a ground wire.

5. A reboiler for inhibiting aldehyde decomposition according to claim 1, characterized in that: The aldehyde reactor (3) is equipped with a temperature meter, which is connected to an external controller via a wire.

6. A reboiler for inhibiting aldehyde decomposition according to claim 1, characterized in that: The heater (7) and the condenser (15) are connected to an external controller via wires.

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