Heat recycling device for diacetone alcohol synthesis reaction

Abstract

The utility model discloses a diacetone alcohol synthesis reaction heat recycling device, which relates to the technical field of diacetone alcohol synthesis and comprises a first heat conduction pipe wound on a feeding pipe of a first reboiler. One end of the first heat conduction pipe is communicated with the liquid outlet end of the total condenser through a first liquid inlet pipe, and the other end of the first heat conduction pipe is communicated with the liquid inlet end of the refrigerator through a first liquid outlet pipe; the second heat conduction pipe is wound on the outer wall of a pipe fitting for connecting the reactor and the reactive distillation tower, one end of the second heat conduction pipe is communicated with the liquid outlet end of the cooler through a second liquid inlet pipe, and the other end of the second heat conduction pipe is communicated with the liquid inlet end of the refrigerator through a second liquid outlet pipe; the third heat conduction pipe is wound on the feeding pipe of the second reboiler, one end of the third heat conduction pipe is communicated with the liquid outlet end of the condenser through a third liquid inlet pipe, and the other end of the third heat conduction pipe is communicated with the liquid inlet end of the refrigerator through a third liquid outlet pipe; the device has the advantages of being convenient to use, reducing energy consumption and production cost and the like.

Description

Technical Field

[0001] This utility model relates to the technical field of diacetone alcohol synthesis, and in particular to a device for recycling the heat of the diacetone alcohol synthesis reaction. Background Technology

[0002] In the production and processing of diacetone alcohol, heating and condensation equipment are used. When in use, the condensation equipment mainly condenses the unreacted acetone and returns it to the reactor. For example, patent application number CN201910887528.8 discloses a continuous reactive distillation equipment and process for synthesizing diacetone alcohol. In this patent, the acetone solution enters the reactor through the feed pipe and undergoes a condensation reaction under the action of an alkaline granular catalyst. The reacted material enters the reactive distillation column from the material feed end at the bottom of the reaction section. The acetone undergoes heat and mass transfer in the reaction section of the reactive distillation column and undergoes a condensation reaction under the action of an alkaline granular catalyst. The unreacted light component acetone is distilled off from the top of the column and condensed. Part of the condensate is returned to the reactive distillation column, and the other part of the condensate is cooled by a cooler and then sent to the reactor.

[0003] The existing condensation method mainly uses condensate for heat exchange, and then sends the condensate to a refrigerator to cool it down. This method does not recover and reuse the heat energy of the condensate, which increases energy consumption and production costs. Therefore, this application proposes a heat recycling device for the diacetone alcohol synthesis reaction. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a thermal recycling device for the synthesis reaction of diacetone alcohol, so as to solve the problem that the prior art of the synthesis reaction of diacetone alcohol lacks a thermal energy recycling device, which increases energy consumption and cost.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a diacetone alcohol synthesis reaction heat recycling device, comprising...

[0006] Refrigerator;

[0007] The first liquid guide pipe is connected at one end to the liquid outlet of the refrigeration unit and at the other end to the liquid inlet of the total condenser.

[0008] The first heat-conducting tube is wound around the feed pipe of the first reboiler. One end of the first heat-conducting tube is connected to the liquid outlet of the total condenser through the first liquid inlet pipe, and the other end is connected to the liquid inlet of the refrigerator through the first liquid outlet pipe.

[0009] The second liquid guide tube is connected to the liquid outlet of the refrigeration unit at one end and to the liquid inlet of the refrigeration unit at the other end.

[0010] The second heat pipe is wound around the outer wall of the pipe connecting the reactor and the reactive distillation column. One end of the second heat pipe is connected to the liquid outlet of the cooler through the second liquid inlet pipe, and the other end is connected to the liquid inlet of the cooler through the second liquid outlet pipe.

[0011] The third liquid guide tube is connected at one end to the liquid outlet of the refrigeration unit and at the other end to the liquid inlet of the condenser.

[0012] The third heat pipe is wound around the feed pipe of the second reboiler. One end of the third heat pipe is connected to the liquid outlet of the condenser through the third liquid inlet pipe, and the other end is connected to the liquid inlet of the refrigerator through the third liquid outlet pipe.

[0013] Preferably, the first heat pipe, the second heat pipe, and the third heat pipe are all spiral-shaped.

[0014] Preferably, the first heat pipe, the second heat pipe and the third heat pipe are all surrounded by a layer of heat-insulating foam.

[0015] The beneficial effects of adopting the above technical solutions are:

[0016] This application, by setting a first heat-conducting pipe in conjunction with a first liquid inlet pipe and a first liquid outlet pipe, can transfer the heat energy absorbed by the refrigerant in the total condenser to the liquid entering the first reboiler, which can reduce the energy consumption of the first reboiler.

[0017] By using a second heat pipe in conjunction with a second liquid inlet pipe and a second liquid outlet pipe, the heat energy absorbed by the refrigerant in the cooler can be transferred to the liquid entering the reactive distillation column, which can reduce the energy consumption of the reactive distillation column.

[0018] By using a third heat pipe in conjunction with a third liquid inlet pipe and a third liquid outlet pipe, the heat energy absorbed by the refrigerant in the condenser can be transferred to the liquid entering the second reboiler, which can reduce the energy consumption of the second reboiler. Attached Figure Description

[0019] Figure 1 This is a front view of a diacetone alcohol synthesis reaction heat recycling device according to the present invention.

[0020] Figure 2 This is a utility model Figure 1 Front view of the middle part.

[0021] Figure 3 This is the front view of the thermal circulation system of this utility model.

[0022] The components include: reactor 10, reactive distillation column 20, total condenser 21, cooler 22, first reboiler 23, diacetone alcohol distillation column 30, condenser 31, second reboiler 32, refrigerator 40, first heat pipe 50, first inlet pipe 51, first outlet pipe 52, first guide pipe 53, second heat pipe 60, second inlet pipe 61, second outlet pipe 62, second guide pipe 63, third heat pipe 70, third inlet pipe 71, third outlet pipe 72, and third guide pipe 73. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-3 In this first embodiment, a diacetone alcohol synthesis reaction heat recycling device includes...

[0025] Refrigerator 40;

[0026] The first liquid guide pipe 53 is connected at one end to the liquid outlet of the refrigerator 40 and at the other end to the liquid inlet of the total condenser 21.

[0027] The first heat pipe 50 is wound around the feed pipe of the first reboiler 23. One end of the first heat pipe 50 is connected to the liquid outlet of the total condenser 23 through the first liquid inlet pipe 51, and the other end is connected to the liquid inlet of the cooler 40 through the first liquid outlet pipe 52.

[0028] The second liquid guide pipe 63 is connected at one end to the liquid outlet of the cooler 40 and at the other end to the liquid inlet of the cooler 22.

[0029] The second heat pipe 60 is wound around the outer wall of the pipe connecting the reactor 10 and the reactive distillation column 20. One end of the second heat pipe 60 is connected to the liquid outlet of the cooler 22 through the second liquid inlet pipe 61, and the other end is connected to the liquid inlet of the refrigerator 40 through the second liquid outlet pipe 62.

[0030] The third liquid guide pipe 73 is connected at one end to the liquid outlet of the refrigerator 40 and at the other end to the liquid inlet of the condenser 31.

[0031] The third heat pipe 70 is wound around the feed pipe of the second reboiler 32. One end of the third heat pipe 70 is connected to the liquid outlet of the condenser 31 through the third liquid inlet pipe 71, and the other end is connected to the liquid inlet of the cooler 40 through the third liquid outlet pipe 72.

[0032] This embodiment is implemented as follows:

[0033] The refrigerant can be delivered to the total condenser 21, cooler 22, and condenser 31 through the refrigerator 40;

[0034] After the refrigerant in the total condenser 21 absorbs heat, it is sent into the first heat conduction pipe 50 through the first liquid inlet pipe 51. The hot refrigerant transfers heat energy to the liquid entering the first reboiler 23, and then the refrigerant flows into the refrigerator 40 through the first liquid outlet pipe 52.

[0035] After the refrigerant in the cooler 22 absorbs heat, it is sent into the second heat pipe 60 through the second liquid inlet pipe 61. The hot refrigerant transfers heat energy to the liquid in the reactor 10 that is sent into the reactive distillation column 20. Then the refrigerant flows into the cooler 40 through the second liquid outlet pipe 62.

[0036] After the refrigerant in the condenser 31 absorbs heat, it is sent into the third heat pipe 70 through the third liquid inlet pipe 71. The hot refrigerant transfers heat energy to the liquid entering the second reboiler 32, and then the refrigerant flows into the refrigerator 40 through the third liquid outlet pipe 71.

[0037] Please see Figure 2 , 3 The first heat pipe 50, the second heat pipe 60, and the third heat pipe 70 are all spiral-shaped.

[0038] Setting the first heat pipe 50, the second heat pipe 60, and the third heat pipe 70 into a spiral shape can increase the heat conduction effect.

[0039] Please see Figure 1 A layer of heat-insulating foam 80 is provided around the first heat-conducting pipe 50, the second heat-conducting pipe 60 and the third heat-conducting pipe 70.

[0040] The insulation foam layer 80 prevents heat loss from the first heat pipe 50, the second heat pipe 60, and the third heat pipe 70.

[0041] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A device for recycling the heat of a diacetone alcohol synthesis reaction, characterized in that, include Refrigerator; The first liquid guide pipe is connected at one end to the liquid outlet of the refrigeration unit and at the other end to the liquid inlet of the total condenser. The first heat-conducting tube is wound around the feed pipe of the first reboiler. One end of the first heat-conducting tube is connected to the liquid outlet of the total condenser through the first liquid inlet pipe, and the other end is connected to the liquid inlet of the refrigerator through the first liquid outlet pipe. The second liquid guide tube is connected to the liquid outlet of the refrigeration unit at one end and to the liquid inlet of the refrigeration unit at the other end. The second heat pipe is wound around the outer wall of the pipe connecting the reactor and the reactive distillation column. One end of the second heat pipe is connected to the liquid outlet of the cooler through the second liquid inlet pipe, and the other end is connected to the liquid inlet of the cooler through the second liquid outlet pipe. The third liquid guide tube is connected at one end to the liquid outlet of the refrigeration unit and at the other end to the liquid inlet of the condenser. The third heat pipe is wound around the feed pipe of the second reboiler. One end of the third heat pipe is connected to the liquid outlet of the condenser through the third liquid inlet pipe, and the other end is connected to the liquid inlet of the refrigerator through the third liquid outlet pipe.

2. The diacetone alcohol synthesis reaction heat recycling device according to claim 1, characterized in that, The first, second, and third heat pipes are all spiral-shaped.

3. The diacetone alcohol synthesis reaction heat recycling device according to claim 1, characterized in that, The first, second, and third heat pipes are all surrounded by a layer of insulating foam.

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