Pretreatment system for ethylbenzene hydroperoxide analyzer

Abstract

The utility model discloses a pretreatment system for an ethylbenzene hydroperoxide analyzer, which comprises a reactor and a temperature controller, the liquid outlet end of the reactor is fixedly communicated with a liquid outlet pipe, and one end of the liquid outlet pipe far away from the reactor is fixedly communicated with an automatic liquid discharger. A reagent and a sample are guided into the two flow meters through the reagent guide-in pipe and the sample guide-in pipe respectively, are quantified according to a reaction required proportion and then are guided into the third three-way connector to be mixed, and then mixed liquid is guided into the reactor to be subjected to a heating reaction; then a gas-liquid mixture after the reaction is guided into an automatic liquid discharging device, so that the gas is discharged after passing through a fourth guide pipe, a second three-way joint and an exhaust pipe in sequence, and the liquid is guided into an ethylbenzene hydroperoxide analyzer through a liquid discharging pipe under the action of self gravity, so that the separation treatment of the gas in the reaction liquid is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of pretreatment of ethylbenzene hydroperoxide analyzers, in particular to a pretreatment system for ethylbenzene hydroperoxide analyzers. Background Art

[0002] Before the ethylbenzene hydroperoxide analyzer analyzes the sample, it needs to be introduced into the reactor for heating treatment. The main components of the sample are propylene, MBA, ethylbenzene, etc. Among them, propylene will change from liquid to gas, causing the phase of the sample to change from liquid to gas-liquid mixture. The gaseous propylene will enter the ethylbenzene hydroperoxide analyzer along with the sample, resulting in large fluctuations in the measurement data and an inability to provide reliable data support for process production.

[0003] In order to solve the above problems, a pretreatment system for an ethylbenzene hydroperoxide analyzer is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a pretreatment system for an ethylbenzene hydroperoxide analyzer to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a pretreatment system for an ethylbenzene hydroperoxide analyzer, comprising a reactor and a temperature controller, wherein the liquid outlet end of the reactor is fixedly connected to a liquid outlet pipe, the end of the liquid outlet pipe away from the reactor is fixedly connected to an automatic liquid drainer, the bottom end of the automatic liquid drainer is fixedly connected to a drain pipe, the end of the drain pipe away from the automatic liquid drainer is fixedly connected to the ethylbenzene hydroperoxide analyzer, the top of the surface of the automatic liquid drainer is fixedly connected to a fourth conduit, the end of the fourth conduit away from the automatic liquid drainer is fixedly connected to a second three-way joint, a temperature sensor is fixedly installed on the top inside the reactor, and an electric heating rod is fixedly installed on the bottom of the reactor.

[0006] The method introduces the reagent and the sample into two flow meters through a reagent introduction tube and a sample introduction tube respectively, and introduces them into a third three-way joint for mixing after being quantified according to the required reaction ratio. The mixed liquid is then introduced into a reactor for heating reaction. The gas-liquid mixture after the reaction is then introduced into an automatic drainer, so that the gas is discharged after passing through a fourth conduit, a second three-way joint and an exhaust pipe in sequence, and the liquid is introduced into an ethylbenzene hydroperoxide analyzer through the drain pipe under the action of its own gravity, thereby realizing separation and processing of the gas in the reaction liquid, and preventing gaseous propane from entering the ethylbenzene hydroperoxide analyzer along with the sample, resulting in large fluctuations in measurement data and an inability to provide reliable data support for process production.

[0007] Preferably, the electric heating rod is fixedly connected to a first wire, and one end of the first wire away from the reactor is fixedly connected to a temperature controller. The temperature controller controls the electric heating rod to generate heat to heat the inside of the reactor.

[0008] Preferably, a second wire is fixedly connected to the top of the temperature sensor, and an end of the second wire away from the automatic drainer is fixedly connected to the temperature controller, so that the temperature in the reactor is monitored by the temperature sensor.

[0009] Preferably, a third wire is fixedly connected to the surface of the thermostat, and an end of the third wire away from the thermostat is fixedly connected to a switch, and the thermostat is powered on and starts working by controlling the switch.

[0010] Preferably, the bottom end of the second three-way joint is fixedly connected to a third conduit, the end of the third conduit away from the second three-way joint is fixedly connected to the first three-way joint, the end of the first three-way joint away from the third conduit is fixedly connected to the second conduit, and the end of the second conduit away from the first three-way joint is fixedly connected to the discharge end of the ethylbenzene hydroperoxide analyzer, and the waste liquid of the ethylbenzene hydroperoxide analyzer is discharged through the first three-way joint.

[0011] Preferably, the liquid inlet end of the reactor is fixedly connected to a first conduit, the end of the first conduit away from the reactor is fixedly connected to a third three-way joint, both ends of the third three-way joint are fixedly connected to a fifth conduit, the ends of the two fifth conduits away from the third three-way joint are fixedly connected to a flow meter, and the ends of the two flow meters away from the fifth conduit are respectively fixedly connected to a reagent introduction tube and a sample introduction tube, so that the reagent and the sample are respectively introduced into the two flow meters through the reagent introduction tube and the sample introduction tube, and then introduced into the third three-way joint for mixing after being quantified according to the required reaction ratio.

[0012] Preferably, the end of the second three-way joint away from the fourth conduit is fixedly connected to an exhaust pipe, and the exhaust pipe is provided to facilitate the discharge of gas in the reaction liquid.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The method introduces the reagent and the sample into two flow meters through a reagent introduction tube and a sample introduction tube respectively, and introduces them into a third three-way joint for mixing after being quantified according to the required reaction ratio. The mixed liquid is then introduced into a reactor for heating reaction. The gas-liquid mixture after the reaction is then introduced into an automatic drainer, so that the gas is discharged after passing through a fourth conduit, a second three-way joint and an exhaust pipe in sequence, and the liquid is introduced into an ethylbenzene hydroperoxide analyzer through the drain pipe under the action of its own gravity, thereby realizing separation and processing of the gas in the reaction liquid, and preventing gaseous propane from entering the ethylbenzene hydroperoxide analyzer along with the sample, resulting in large fluctuations in measurement data and an inability to provide reliable data support for process production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the overall structural diagram of the utility model;

[0016] Figure 2 This is a structural diagram of the reactor of the utility model;

[0017] Figure 3 It is an enlarged view of part A of the present utility model;

[0018] Figure 4 It is an enlarged view of part B of the present invention.

[0019] In the figure: 1. first conduit; 2. reactor; 3. electric heating rod; 4. first wire; 5. thermostat; 6. second wire; 7. third wire; 8. switch; 9. liquid outlet pipe; 10. drain pipe; 11. ethylbenzene hydroperoxide analyzer; 12. second conduit; 13. first three-way connector; 14. third conduit; 15. automatic drain; 16. fourth conduit; 17. second three-way connector; 18. exhaust pipe; 19. third three-way connector; 20. fifth conduit; 21. flow meter; 22. reagent introduction tube; 23. sample introduction tube; 24. temperature sensor. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] See also Figure 1-4The utility model provides a pretreatment system for an ethylbenzene hydroperoxide analyzer, comprising a reactor 2 and a temperature controller 5. The liquid outlet end of the reactor 2 is fixedly connected to a liquid outlet pipe 9, the end of the liquid outlet pipe 9 away from the reactor 2 is fixedly connected to an automatic liquid drainer 15, the bottom end of the automatic liquid drainer 15 is fixedly connected to a liquid discharge pipe 10, the end of the liquid discharge pipe 10 away from the automatic liquid drainer 15 is fixedly connected to an ethylbenzene hydroperoxide analyzer 11, the top of the surface of the automatic liquid drainer 15 is fixedly connected to a fourth conduit 16, the end of the fourth conduit 16 away from the automatic liquid drainer 15 is fixedly connected to a second three-way joint 17, a temperature sensor 24 is fixedly installed on the top of the inner side of the reactor 2, and an electric heating rod 3 is fixedly installed on the bottom of the reactor 2. By separating the reagents and samples, the temperature of the reactor 2 is controlled by the temperature sensor 24. The liquid is introduced into two flow meters 21 through the reagent introduction tube 22 and the sample introduction tube 23, and is introduced into the third three-way joint 19 for mixing after being quantified according to the reaction requirement ratio. The mixed liquid is then introduced into the reactor 2 for heating reaction. The gas-liquid mixture after the reaction is then introduced into the automatic drainer 15, so that the gas is discharged after passing through the fourth conduit 16, the second three-way joint 17 and the exhaust pipe 18 in sequence, and the liquid is introduced into the ethylbenzene hydroperoxide analyzer 11 through the drain pipe 10 under the action of its own gravity, thereby realizing the separation and treatment of the gas in the reaction liquid, avoiding that gaseous propane will enter the ethylbenzene hydroperoxide analyzer 11 with the sample, resulting in large fluctuations in the measurement data and failure to provide reliable data support for process production.

[0022] The electric heating rod 3 is fixedly connected to a first wire 4, and the end of the first wire 4 away from the reactor 2 is fixedly connected to the thermostat 5. The top of the temperature sensor 24 is fixedly connected to a second wire 6, and the end of the second wire 6 away from the automatic drain 15 is fixedly connected to the thermostat 5. A third wire 7 is fixedly connected to the surface of the thermostat 5, and the end of the third wire 7 away from the thermostat 5 is fixedly connected to a switch 8.

[0023] When in use, the electric heating rod 3 is energized by the thermostat 5 to generate heat to heat the inside of the reactor 2. The temperature inside the reactor 2 is monitored by the temperature sensor 24. The thermostat 5 is energized and starts working by the switch 8.

[0024] The bottom end of the second three-way joint 17 is fixedly connected to the third conduit 14, and the end of the third conduit 14 away from the second three-way joint 17 is fixedly connected to the first three-way joint 13, and the end of the first three-way joint 13 away from the third conduit 14 is fixedly connected to the second conduit 12. The end of the second conduit 12 away from the first three-way joint 13 is fixedly connected to the discharge end of the ethylbenzene hydroperoxide analyzer 11, the liquid inlet end of the reactor 2 is fixedly connected to the first conduit 1, and the end of the first conduit 1 away from the reactor 2 is fixedly connected to the third three-way joint 19. Both ends of the third three-way joint 19 are fixedly connected to the fifth conduit 20, and the ends of the two fifth conduits 20 away from the third three-way joint 19 are fixedly connected to the flow meter 21. The ends of the two flow meters 21 away from the fifth conduit 20 are respectively fixedly connected to the reagent introduction pipe 22 and the sample introduction pipe 23. The end of the second three-way joint 17 away from the fourth conduit 16 is fixedly connected to the exhaust pipe 18;

[0025] During use, the waste liquid of the ethylbenzene hydroperoxide analyzer 11 is discharged through the first three-way joint 13, and the reagent and sample are respectively introduced into two flow meters 21 through the reagent introduction tube 22 and the sample introduction tube 23, and are quantitatively introduced into the third three-way joint 19 for mixing after the required reaction ratio is met. The exhaust pipe 18 is provided to facilitate the discharge of gas in the reaction liquid.

[0026] When the embodiment of the present application is in use: the reagent and the sample are respectively introduced into the two flow meters 21 through the reagent introduction tube 22 and the sample introduction tube 23, and are quantitatively introduced into the third three-way joint 19 for mixing after the reaction requirement ratio is reached, and the mixed liquid is then introduced into the reactor 2 for heating reaction, and the gas-liquid mixture after the reaction is introduced into the automatic drain 15, so that the gas is discharged after passing through the fourth conduit 16, the second three-way joint 17 and the exhaust pipe 18 in sequence, and the liquid is introduced into the ethylbenzene hydroperoxide analyzer 11 through the drain pipe 10 under the action of its own gravity, thereby realizing the separation and treatment of the gas in the reaction liquid, avoiding the gaseous propane from entering the ethylbenzene hydroperoxide analyzer 11 with the sample, resulting in large fluctuations in the measurement data, and being unable to provide reliable data support for process production. During operation, the temperature control of the reactor 2 is facilitated by the arrangement of the electric heating rod 3, the temperature controller 5 and the temperature sensor 24.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pretreatment system for an ethylbenzene hydroperoxide analyzer, comprising a reactor (2) and a temperature controller (5), characterized in that: The liquid outlet end of the reactor (2) is fixedly connected to a liquid outlet pipe (9), the end of the liquid outlet pipe (9) away from the reactor (2) is fixedly connected to an automatic liquid drain (15), the bottom end of the automatic liquid drain (15) is fixedly connected to a liquid discharge pipe (10), the end of the liquid discharge pipe (10) away from the automatic liquid drain (15) is fixedly connected to an ethylbenzene hydroperoxide analyzer (11), the top of the surface of the automatic liquid drain (15) is fixedly connected to a fourth conduit (16), the end of the fourth conduit (16) away from the automatic liquid drain (15) is fixedly connected to a second three-way joint (17), a temperature sensor (24) is fixedly installed on the top of the inner side of the reactor (2), and an electric heating rod (3) is fixedly installed on the bottom of the reactor (2).

2. A pretreatment system for an ethylbenzene hydroperoxide analyzer according to claim 1, characterized in that: The electric heating rod (3) is fixedly connected to a first wire (4), and one end of the first wire (4) away from the reactor (2) is fixedly connected to a temperature controller (5).

3. A pretreatment system for an ethylbenzene hydroperoxide analyzer according to claim 1, characterized in that: The top end of the temperature sensor (24) is fixedly connected to a second wire (6), and one end of the second wire (6) away from the automatic drain (15) is fixedly connected to the temperature controller (5).

4. A pretreatment system for an ethylbenzene hydroperoxide analyzer according to claim 1, characterized in that: A third wire (7) is fixedly connected to the surface of the thermostat (5), and an end of the third wire (7) away from the thermostat (5) is fixedly connected to a switch (8).

5. A pretreatment system for an ethylbenzene hydroperoxide analyzer according to claim 1, characterized in that: The bottom end of the second three-way joint (17) is fixedly connected to a third conduit (14); one end of the third conduit (14) away from the second three-way joint (17) is fixedly connected to a first three-way joint (13); one end of the first three-way joint (13) away from the third conduit (14) is fixedly connected to a second conduit (12); and one end of the second conduit (12) away from the first three-way joint (13) is fixedly connected to a discharge end of an ethylbenzene hydroperoxide analyzer (11).

6. A pretreatment system for an ethylbenzene hydroperoxide analyzer according to claim 1, characterized in that: The liquid inlet end of the reactor (2) is fixedly connected to a first conduit (1), the end of the first conduit (1) away from the reactor (2) is fixedly connected to a third three-way joint (19), both ends of the third three-way joint (19) are fixedly connected to a fifth conduit (20), the ends of the two fifth conduits (20) away from the third three-way joint (19) are fixedly connected to a flow meter (21), and the ends of the two flow meters (21) away from the fifth conduit (20) are fixedly connected to a reagent introduction tube (22) and a sample introduction tube (23), respectively.

7. A pretreatment system for an ethylbenzene hydroperoxide analyzer according to claim 1, characterized in that: One end of the second three-way joint (17) away from the fourth conduit (16) is fixedly connected to an exhaust pipe (18).

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