CN217164335U - Temperature control device for alkylation reactor - Google Patents
Temperature control device for alkylation reactor Download PDFInfo
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- CN217164335U CN217164335U CN202123305627.2U CN202123305627U CN217164335U CN 217164335 U CN217164335 U CN 217164335U CN 202123305627 U CN202123305627 U CN 202123305627U CN 217164335 U CN217164335 U CN 217164335U
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Abstract
The utility model discloses an alkylation reactor temperature control device, which belongs to the technical field of alkylation reactors and comprises a reactor body and a flash tank, wherein a reaction effluent pipe is arranged at the bottom of the reactor body, the flash tank is arranged at one end outside the reaction effluent pipe, a cooling pipe bundle running through the reactor body is arranged in the flash tank, an electromagnetic relief valve is arranged at the top of the flash tank, and a compressor is arranged at the top of the electromagnetic relief valve; the utility model discloses an increase back flow and backwash pump on traditional alkylation reactor temperature control device subassembly, can in time add the heat pressure in drawing back the reactor with the saturated liquid of flash distillation in the cooling tube bank, in being introduced the cooling tube bank again after reaching to accord with flash distillation requirement pressure and temperature, carry out the flash distillation heat absorption, the heat absorption capacity of cooling tube with higher speed, and then the normal high-efficient work of effectual guarantee temperature control subassembly.
Description
Technical Field
The utility model relates to an alkylation reactor especially relates to an alkylation reactor temperature control device, belongs to alkylation technology technical field.
Background
The alkylation reaction is directed to a reaction of introducing an alkyl group into carbon, nitrogen, oxygen and other atoms in an organic molecule, which is called alkylation for short, and commonly used alkylating agents include olefins, halogenated alkanes, alkyl sulfates, alcohols and the like. Alkylation is one of the important reactions in organic synthesis, for example, the reaction of benzene with haloalkanes, which can introduce alkyl groups on the benzene ring.
The existing alkylation reactor adopts a temperature control mode that heat absorption cooling control is performed in a flash evaporation mode of high-temperature and high-pressure reaction effluent through a cooling tube bundle, but because the flash evaporation structure is that part of the vaporization part of the reaction effluent is still saturated liquid, the saturated liquid is still in the cooling tube bundle, and continuous flash evaporation and heat absorption of subsequent reaction effluent are influenced.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide an alkylation reactor temperature control device.
The purpose of the utility model can be achieved by adopting the following technical scheme:
the utility model provides an alkylation reactor temperature control device, includes reactor body and flash tank, reactor body bottom is provided with reaction outflow thing pipe, the outside one end of reaction outflow thing pipe is provided with the flash tank, be provided with in the flash tank and run through the cooling tube bank of reactor body, the flash tank top is provided with electromagnetic relief valve, electromagnetic relief valve top is provided with the compressor, the flash tank bottom is provided with and is located the back flow of reaction outflow one side, be provided with the backwash pump on the back flow.
Preferably, the reaction effluent pipe is in sealed insertion connection with the reactor body, the flash tank is nested at one end outside the reactor body in a sealed mode, and the reaction effluent pipe penetrates through the flash tank.
Preferably, the cooling tube bundle penetrates through the flash tank and the reactor body, the reaction effluent pipe is communicated with the inside of the cooling tube bundle, and the electromagnetic pressure release valve is connected with a top valve of the flash tank.
Preferably, a pressure gauge is installed on one side wall of the outer portion of the electromagnetic pressure relief valve, the compressor is communicated with the electromagnetic pressure relief valve through a pipeline, and a condenser is connected to one side of the compressor through a pipeline.
Preferably, the condenser is connected with the reactor body through a reactant circulating pipeline, and the return pipe is communicated with the inside of the flash tank.
Preferably, the reflux pump is connected with the reflux pipe valve, the reflux pump is connected with the inside of the reactor body through a pipeline, and the inner wall of the reactor body is uniformly paved with temperature sensors.
The utility model has the advantages of:
the utility model discloses an increase back flow and backwash pump on traditional alkylation reactor temperature control device subassembly, can in time add the heat pressure in drawing back the reactor with the saturated liquid of flash distillation in the cooling tube bank, in being introduced the cooling tube bank again after reaching to accord with flash distillation requirement pressure and temperature, carry out the flash distillation heat absorption, the heat absorption capacity of cooling tube with higher speed, and then the normal high-efficient work of effectual guarantee temperature control subassembly.
Drawings
FIG. 1 is a schematic diagram of a preferred embodiment of an alkylation reactor temperature control apparatus according to the present invention;
fig. 2 is a schematic diagram of the internal structural connections of the flash tank and cooling tube bundle in a preferred embodiment of an alkylation reactor temperature control apparatus according to the present invention.
The reference numerals are explained below:
1-a reactor body; 2-cooling the tube bundle; 3-a reaction effluent tube; 4-electromagnetic relief valve; 5-compressor, 6-condenser; 7-a reactant recycling line; 8-a flash tank; 9-a return pipe; 10-reflux pump; 11-a vaporization chamber; 12-a pressure gauge; 13-a temperature control system; 14-temperature sensor.
Detailed Description
In order to make the technical solutions of the present invention clearer and clearer for those skilled in the art, the present invention will be described in further detail with reference to the following embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
As shown in fig. 1-2, the alkylation reactor temperature control device provided by this embodiment includes a reactor body 1 and a flash tank 8, a reaction effluent pipe 3 is provided at the bottom of the reactor body 1, the flash tank 8 is provided at one end outside the reaction effluent pipe 3, a cooling tube bundle 2 penetrating through the reactor body 1 is provided in the flash tank 8, an electromagnetic pressure relief valve 4 is provided at the top of the flash tank 8, a compressor 5 is provided at the top of the electromagnetic pressure relief valve 4, a return pipe 9 located on one side of the reaction effluent is provided at the bottom of the flash tank 8, and a reflux pump 10 is provided on the return pipe 9.
A pressure gauge 12 is installed on one side wall of the outer portion of the electromagnetic pressure release valve 4, the compressor 5 is communicated with the electromagnetic pressure release valve 4 through a pipeline, one side of the compressor 5 is connected with a condenser 6 through a pipeline, vaporized steam is regenerated by the compressor 5, and then heat is released through the condenser 6 to become low-pressure normal-temperature refrigerant.
The condenser 6 is connected with the reactor body 1 through a reactant circulating pipeline 7, and a return pipe 9 is communicated with the inside of the flash tank 8.
The reflux pump 10 is connected with the reflux pipe 9 through a valve, the reflux pump 10 is connected with the interior of the reactor body 1 through a pipeline, the temperature sensors 14 are uniformly laid on the inner wall of the reactor body 1, the temperature sensors 14 are used for detecting the temperature of the reaction of internal substances, the temperature is transmitted to the temperature control system 13, and then the temperature is controlled to be in a balanced state.
As shown in fig. 1-2, the present example provides an alkylation reactor temperature control device that operates as follows:
step 1: when the device is used specifically, the reactor is matched and installed in the flow equipment of the alkylation production process, the catalyst acid and the reactant are added simultaneously from the circulating pipeline, under the action of the stirring device in the reactor body 1, the catalyst acid and the reactant are quickly emulsified and generate alkylation reaction, a large amount of heat is generated by the reaction, the pressure in the reactor body 1 is higher, the reaction product enters the gas equipment from the ascending pipe for treatment, the reaction effluent is unreacted high-temperature high-pressure liquid isobutane, the reaction effluent is led out from the reaction effluent pipe 3 and enters the flash tank 8 to circulate in the cooling pipe bundle 2, the pressure in the cooling pipe bundle 2 and the pressure in the flash tank 8 are far lower than that of the reaction effluent, therefore, part of liquid is vaporized to absorb the ambient heat under the environment of the reaction effluent with higher temperature, heat and pressure in the vaporization cavity 11, the heat in the absorption reactor body 1 in the cooling tube bundle 2 is effectively counteracted, and the purpose of temperature control is achieved;
step 2: vaporized steam is discharged from the electromagnetic pressure release valve 4, enters the compressor 5 and the condenser 6, is processed into low-temperature and low-pressure refrigerant again, is introduced into the reactor body 1, accelerates the internal reaction, and unvaporized liquid in reaction effluent flows into the flash tank 8, is pumped into the reactor body 1 by the return pipe 9 and the reflux pump 10, is heated and pressurized again, and is continuously recycled, so that the problem that the continuous vaporization heat absorption temperature control of subsequent reaction effluent is influenced due to gas-liquid separation, gas discharge and liquid discharge after flash evaporation in the traditional cooling tube bundle 2 is solved.
Above, only the further embodiments of the present invention are shown, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can replace or change the technical solution and the concept of the present invention within the protection scope of the present invention.
Claims (6)
1. An alkylation reactor temperature control apparatus, comprising: the reactor comprises a reactor body (1) and a flash tank (8), wherein a reaction effluent pipe (3) is arranged at the bottom of the reactor body (1), the flash tank (8) is arranged at one end outside the reaction effluent pipe (3), a cooling pipe bundle (2) penetrating through the reactor body (1) is arranged in the flash tank (8), an electromagnetic pressure release valve (4) is arranged at the top of the flash tank (8), a compressor (5) is arranged at the top of the electromagnetic pressure release valve (4), a return pipe (9) located on one side of the reaction effluent pipe (3) is arranged at the bottom of the flash tank (8), and a return pump (10) is arranged on the return pipe (9).
2. The alkylation reactor temperature control apparatus of claim 1, wherein: the reaction effluent pipe (3) is in sealed insertion connection with the reactor body (1), the flash tank (8) is nested at one end of the outer portion of the reactor body (1) in a sealed mode, and the reaction effluent pipe (3) penetrates through the flash tank (8).
3. The alkylation reactor temperature control apparatus of claim 2, wherein: the cooling tube bundle (2) penetrates through the flash tank (8) and the reactor body (1), the reaction effluent tube (3) is communicated with the inside of the cooling tube bundle (2), and the electromagnetic pressure relief valve (4) is connected with a top valve of the flash tank (8).
4. The alkylation reactor temperature control apparatus of claim 3, wherein: the pressure gauge (12) is installed on one side wall of the outer portion of the electromagnetic pressure release valve (4), the compressor (5) is communicated with the electromagnetic pressure release valve (4) through a pipeline, and a condenser (6) is connected to one side of the compressor (5) through a pipeline.
5. The alkylation reactor temperature control apparatus of claim 4, wherein: the condenser (6) is connected with the reactor body (1) through a reactant circulating pipeline (7), and the return pipe (9) is communicated with the inside of the flash tank (8).
6. The alkylation reactor temperature control apparatus of claim 4, wherein: reflux pump (10) with back flow (9) valve joint, reflux pump (10) with reactor body (1) is inside to be connected through the pipeline, evenly laid temperature sensor (14) on reactor body (1) inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123305627.2U CN217164335U (en) | 2021-12-24 | 2021-12-24 | Temperature control device for alkylation reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123305627.2U CN217164335U (en) | 2021-12-24 | 2021-12-24 | Temperature control device for alkylation reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217164335U true CN217164335U (en) | 2022-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123305627.2U Active CN217164335U (en) | 2021-12-24 | 2021-12-24 | Temperature control device for alkylation reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217164335U (en) |
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2021
- 2021-12-24 CN CN202123305627.2U patent/CN217164335U/en active Active
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