Chlorinated paraffin reaction kettle

Abstract

The utility model relates to a chlorinated paraffin reaction kettle, which is characterized in that a plurality of automatic control valves are additionally arranged on a steam and cooling water pipeline, a first automatic control valve is used for controlling water inlet of cooling water, a second automatic control valve is used for controlling steam outlet, a third automatic control valve is used for controlling water outlet of the cooling water, and a fourth automatic control valve is used for controlling steam inlet. Manual intervention is not needed in heating and cooling operation of the chlorinated paraffin reaction kettle, and accidents are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of chlorinated paraffin preparation, in particular to a chlorinated paraffin reaction kettle. Background Art

[0002] When producing chlorinated paraffin, the chlorinated paraffin reactor crushes the solid paraffin and pours it into the reactor. The steam in the jacket of the reactor is used to heat the solid chlorinated paraffin to above 80°C to melt the solid paraffin. Chlorine is then introduced, and the melted paraffin reacts with the chlorine for chlorination. As the chlorine flow rate increases, the reaction releases heat rapidly. At this time, the reactor jacket needs to be switched to cooling water to remove the reaction heat. Since the same jacket is used for steam heating and cooling water, the steam and cooling water have opposite inlet and outlet methods. Steam is in an upper-in and lower-out method while cooling water is in a lower-in and upper-out method. The operation is more complicated and errors are prone to occur during switching, which can lead to safety accidents. Utility Model Content

[0003] The utility model aims to provide a chlorinated paraffin reactor to overcome the deficiencies of the prior art. Automatic control valves are added to steam and cooling water pipelines to achieve heating and cooling operations of the chlorinated paraffin reactor without manual intervention, thereby reducing the occurrence of accidents.

[0004] According to a chlorinated paraffin reactor proposed by the utility model, the reactor comprises a reactor body and a jacket, wherein the jacket is wrapped around the outside of the reactor body, a cavity is arranged in the jacket, one side of the jacket is connected to a first main pipe, and the other side of the jacket is connected to a second main pipe, two branches are arranged on the first main pipe, namely a first branch pipe and a second branch pipe, two branches are also arranged on the second main pipe, namely a third branch pipe and a fourth branch pipe, the first branch pipe and the second branch pipe are arranged in parallel, the third branch pipe and the fourth branch pipe are arranged in parallel, a first automatic control valve is arranged on the first branch pipe, a second automatic control valve is arranged on the second branch pipe, a third automatic control valve is arranged on the third branch pipe, and a fourth automatic control valve is arranged on the fourth branch pipe, the first automatic control valve controls the inlet of cooling water, the second automatic control valve controls the outlet of steam, the third automatic control valve controls the outlet of cooling water, and the fourth automatic control valve controls the inlet of steam.

[0005] Preferably, a stirrer is arranged in the reactor, and the stirrer is connected to a stirring motor.

[0006] Preferably, the first automatic control valve, the second automatic control valve, the third automatic control valve and the fourth automatic control valve are all controlled by a PLC program.

[0007] Preferably, the first automatic control valve, the second automatic control valve, the third automatic control valve and the fourth automatic control valve are all interlocked with the reaction temperature.

[0008] Preferably, the jacket wraps the lower half of the kettle body and the bottom of the kettle body.

[0009] Preferably, the first automatic control valve, the second automatic control valve, the third automatic control valve and the fourth automatic control valve are all regulating valves.

[0010] Preferably, the jacket and the kettle body are connected by welding.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] First, by adding automatic control valves to both the steam and cooling water pipelines, the automatic control valves are controlled by PLC programs and interlocked with the reaction temperature, so that the heating and cooling operations of the chlorinated paraffin reactor can be carried out without human intervention, reducing the occurrence of accidents.

[0013] Second, the jacket is connected to the kettle body by welding, which is convenient for rapid switching of cooling or heating mode. At the same time, the jacket wraps the lower half of the kettle body and the bottom of the kettle body, which can quickly remove the reaction heat and enable rapid cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic structural diagram of a chlorinated paraffin reactor.

[0015] Illustrations: 1. Kettle body; 2. Jacket; 3. First main pipe; 4. Second main pipe; 5. First branch pipe; 6. Second branch pipe; 7. Third branch pipe; 8. Fourth branch pipe; 9. First automatic control valve; 10. Second automatic control valve; 11. Third automatic control valve; 12. Fourth automatic control valve; 13. Agitator; 14. Agitator motor. DETAILED DESCRIPTION

[0016] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are further described in detail below in conjunction with the accompanying drawings and embodiments.

[0017] In the description of the present invention, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] In the present invention, unless otherwise clearly defined and limited, if the terms "install", "connect", "connect", "fix" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical signal connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0019] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this utility model are only for illustrative purposes and do not represent the only implementation method.

[0020] Reference Figure 1 , Figure 1The schematic diagram of the structure of a chlorinated paraffin reactor in an embodiment of the utility model is shown. The chlorinated paraffin reactor provided in an embodiment of the utility model comprises a reactor body 1 and a jacket 2, wherein the jacket 2 is wrapped around the outside of the reactor body 1, a cavity is provided in the jacket 2, one side of the jacket 2 is connected to a first main pipe 3, and the other side of the jacket 2 is connected to a second main pipe 4, the first main pipe 3 is provided with two branch pipes, namely a first branch pipe 5 and a second branch pipe 6, and the second main pipe 4 is also provided with two branch pipes, namely a third branch pipe 7 and a fourth branch pipe 8. The first branch pipe 5 and the second branch pipe 6 are arranged in parallel, the third branch pipe 7 and the fourth branch pipe 8 are arranged in parallel, the first automatic control valve 9 is arranged on the first branch pipe 5, the second automatic control valve 10 is arranged on the second branch pipe 6, the third automatic control valve 11 is arranged on the third branch pipe 7, and the fourth automatic control valve 12 is arranged on the fourth branch pipe 8. The first automatic control valve 9 controls the inlet of cooling water, the second automatic control valve 10 controls the outlet of steam, the third automatic control valve 11 controls the outlet of cooling water, and the fourth automatic control valve 12 controls the inlet of steam. The heating mode and cooling mode are set according to the functional requirements. When the heating mode is started, the first automatic control valve 9 and the third automatic control valve 11 are closed, the second automatic control valve 10 is opened, and the fourth automatic control valve 12 is slowly opened. Since the steam pressure is generally 0.8MPa, some cooling water may remain in the pipeline. If the fourth automatic valve 12 moves too quickly, a water hammer effect will be formed, thereby causing a safety risk. When the cooling mode is started, the second automatic control valve 10 and the fourth automatic control valve 12 are closed, the third automatic control valve 11 is opened, and the first automatic control valve 9 is also slowly opened. Then the reaction temperature is set. Since chlorinated paraffin will react with chlorine exothermically after chlorine is introduced, the reaction will be out of control if the heat is not removed in time.

[0021] In one of the embodiments, further, a stirrer 13 is arranged in the reactor, and the stirrer 13 is connected to a stirring motor 14 .

[0022] In one of the embodiments, further, the first automatic control valve 9, the second automatic control valve 10, the third automatic control valve 11 and the fourth automatic control valve 12 are all controlled by a PLC program. When entering the cooling mode, the second automatic control valve 10 and the fourth automatic control valve 12 are closed, and the flow rate of cooling water is controlled by controlling the valve opening of the first automatic control valve 9, thereby cooling the temperature. When entering the heating mode, the first automatic control valve 9 and the third automatic control valve 11 are automatically closed, and the fourth automatic control valve 12 is automatically opened, and heating is achieved by controlling the valve opening of the fourth automatic control valve 12.

[0023] In one of the embodiments, further, the first automatic control valve 9, the second automatic control valve 10, the third automatic control valve 11 and the fourth automatic control valve 12 are all interlocked with the reaction temperature.

[0024] In one of the embodiments, further, the jacket 2 wraps the lower half of the kettle body and the bottom of the kettle body, which can quickly remove the reaction heat and quickly cool it.

[0025] In one of the embodiments, further, the first automatic control valve 9, the second automatic control valve 10, the third automatic control valve 11 and the fourth automatic control valve 12 are all regulating valves.

[0026] In one of the embodiments, further, the jacket 2 is connected to the kettle body 1 by welding, which facilitates rapid switching of cooling or heating modes.

[0027] In one of the embodiments, further, the cooling water comes from an industrial water pipeline of a production system, the water temperature is stable, and reliable cooling water can be supplied.

[0028] In one of the embodiments, further, the steam comes from steam with a steam main pressure of about 0.8 MPa.

[0029] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A chlorinated paraffin reactor, characterized in that: The reactor comprises a reactor body (1) and a jacket (2), wherein the jacket (2) is wrapped around the outside of the reactor body (1), and a cavity is arranged in the jacket (2), one side of the jacket (2) is connected to a first main pipe (3), and the other side of the jacket (2) is connected to a second main pipe (4), the first main pipe (3) is provided with two branch pipes, namely a first branch pipe (5) and a second branch pipe (6), and the second main pipe (4) is also provided with two branch pipes, namely a third branch pipe (7) and a fourth branch pipe (8), the first branch pipe (5) and the second branch pipe (6) are arranged in parallel, and the third branch pipe (7) and the fourth branch pipe (8) are arranged in parallel. The branch pipe (7) and the fourth branch pipe (8) are arranged in parallel, a first automatic control valve (9) is arranged on the first branch pipe (5), a second automatic control valve (10) is arranged on the second branch pipe (6), a third automatic control valve (11) is arranged on the third branch pipe (7), and a fourth automatic control valve (12) is arranged on the fourth branch pipe (8). The first automatic control valve (9) controls the inlet of cooling water, the second automatic control valve (10) controls the outlet of steam, the third automatic control valve (11) controls the outlet of cooling water, and the fourth automatic control valve (12) controls the inlet of steam.

2. The chlorinated paraffin reactor according to claim 1, characterized in that: A stirrer (13) is arranged in the reaction kettle, and the stirrer (13) is connected to a stirring motor (14).

3. The chlorinated paraffin reactor according to claim 1, characterized in that: The first automatic control valve (9), the second automatic control valve (10), the third automatic control valve (11) and the fourth automatic control valve (12) are all controlled by a PLC program.

4. The chlorinated paraffin reactor according to claim 1, characterized in that: The first automatic control valve (9), the second automatic control valve (10), the third automatic control valve (11) and the fourth automatic control valve (12) are all interlocked with the reaction temperature.

5. The chlorinated paraffin reaction kettle according to claim 1, characterized in that: The jacket (2) wraps the lower half of the kettle body and the bottom of the kettle body.

6. The chlorinated paraffin reactor according to claim 1, characterized in that: The first automatic control valve (9), the second automatic control valve (10), the third automatic control valve (11) and the fourth automatic control valve (12) are all regulating valves.

7. The chlorinated paraffin reaction kettle according to claim 1, characterized in that: The jacket (2) and the kettle body (1) are connected by welding.

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