Chemical drug synthesis heat extraction equipment

Abstract

The utility model discloses chemical drug synthesis heat extraction equipment in the technical field of extraction equipment, which comprises a water bath tank body, a base is welded at the bottom of the water bath tank body, and a heating plate is mounted at the upper end of the base. According to the device, water cooling is carried out through the water cooling pipe connected with the leading-out end of the backflow pipe, so that an extracting solution can be quickly liquefied and flows back, water vapor of the extracting solution is prevented from overflowing, and the high recycling rate is guaranteed; a mixture placed in the immersion barrel is used for secondary cooling and liquefaction of an extracting solution, most of the extracting solution is recycled, the loss of the extracting solution is reduced, meanwhile, a temporary storage tank can temporarily store a large amount of extract mixed solution, fluid introduction is controlled through a valve body on a liquid inlet pipe, continuous liquid inlet operation is conducted, and synchronous heat extraction is conducted through a plurality of extracting tanks. A plurality of fins are connected to the outer wall of the extraction tank, so that the contact area with a water bath is increased, and the heat extraction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of extraction equipment, in particular to a thermal extraction equipment for chemical drug synthesis. Background Technique

[0002] Chemically synthesized drugs are chemically synthesized drugs studied and produced based on chemical theory and chemical laws. Chemical synthesis includes organic synthesis and inorganic synthesis. Furacilin is a chemically synthesized drug, mainly used for disinfection and antisepsis, and belongs to organic compounds. Drug synthesis plays a very important role in the pharmaceutical industry. During the production process of furacilin, extraction and concentration are required. In the extraction and concentration of chemical drugs, thermal extraction can be used. By heating the leaching solution, the drug can be extracted and concentrated to achieve the purpose of chemical drug synthesis extraction. Especially when the leaching solution is an ethanol solution, the thermal extraction and concentration are carried out by means of water bath heating. The leaching solution for thermal extraction is heated and refluxed for chemical drug thermal extraction.

[0003] However, the thermal extraction heating volume of the existing thermal extraction equipment for chemical drug synthesis is limited, mostly single heating volume. The heat exchange efficiency of chemical drug extraction is not high, and the cooling of the recovered leaching solution is not thorough enough. The vaporized leaching solution cannot be completely liquefied, resulting in partial loss of the leaching solution and inability to fully reflux to participate in subsequent leaching operations. Based on this, the utility model designs a thermal extraction equipment for chemical drug synthesis to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a thermal extraction equipment for chemical drug synthesis to solve the problems of limited thermal extraction heating volume, mostly single heating volume, insufficient cooling of the recovered leaching solution, incomplete liquefaction of the vaporized leaching solution, and partial loss of the leaching solution as mentioned above.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A chemical drug synthesis heat extraction device, comprising a water bath tank body, a base is welded to the bottom of the water bath tank body, a heating plate is installed at the upper end of the base, the heating plate heats the bottom end of the water bath tank body, a plurality of extraction tanks are placed inside the water bath tank body, an end cover is buckled on the upper end of the extraction tank, a plurality of fins are welded on the outer wall of the extraction tank, a liquid inlet pipe and an air outlet pipe are connected to the upper end of the end cover, a support frame is fixedly welded to one side of the water bath tank body, a ring pipe, a liquid immersion cylinder and a temporary storage tank are fixedly installed on the support frame, a plurality of the air outlet pipes are connected to the bottom end of the ring pipe, a U-shaped return pipe is welded to the upper end of the ring pipe, the upper end of the return pipe is connected to one side of the liquid immersion cylinder, the height of the return pipe is greater than the height of the liquid immersion cylinder, a water cooling pipe is sleeved at the liquid outlet end of the return pipe, the water cooling pipe is connected to an inlet and outlet water pipe, a diversion pipe is connected between the liquid immersion cylinder and the temporary storage tank, a plurality of liquid inlet pipes are connected to the bottom of the temporary storage tank, and valves are connected to both the diversion pipe and the liquid inlet pipe.

[0007] As a further scheme of the present invention: the multiple extraction tanks in the water bath tank body are annularly distributed, and the multiple fins on the extraction tank are annularly and equidistantly distributed.

[0008] As a further scheme of the present invention: the height of the fins matches the height of the extraction tank, and the fins are made of copper material.

[0009] As a further scheme of the present invention: a distribution plate is welded to the liquid outlet end of the return pipe, and a plurality of diversion plates are connected to the distribution plate.

[0010] As a further scheme of the present invention: the distribution plate is vertically arranged, and the multiple diversion plates on the distribution plate are equidistantly arranged.

[0011] As a further scheme of the present invention: the diversion plate is U-shaped.

[0012] As a further scheme of the present invention: a heat insulation plate is connected to the bottom of the temporary storage tank, and the diameter of the heat insulation plate matches the diameter of the water bath tank body.

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

[0014] 1. In the present utility model, water cooling is carried out through the water cooling pipe connected to the outlet end of the reflux pipe, enabling the extraction liquid to be quickly liquefied and refluxed, avoiding the overflow of the water vapor of the extraction liquid, ensuring a high recovery rate. At the same time, the outlet of the reflux pipe is connected to the middle of one side of the immersion cylinder, and the mixture placed inside the immersion cylinder is used for secondary cooling and liquefaction of the extraction liquid, ensuring the recovery of most of the extraction liquid, reducing the loss of the extraction liquid. Meanwhile, the temporary storage tank can store a large amount of extract mixture, and the fluid is introduced through the valve body on the inlet pipe for continuous liquid inlet operation. Multiple extraction tanks perform thermal extraction synchronously, and a plurality of fins are connected to the outer wall of the extraction tank to increase the contact area with the water bath, improve the heat exchange efficiency, and enhance the efficiency of thermal extraction.

[0015] 2. In the present utility model, a distribution plate is welded to the liquid outlet end of the reflux pipe, and a plurality of flow guiding plates are connected to the distribution plate. The distribution plate welded to the liquid outlet end of the reflux pipe and the plurality of flow guiding plates cooperate to make the refluxed extraction liquid be distributed at multiple points, increasing the contact area with the mixture inside the immersion cylinder, quickly performing secondary cooling on the refluxed extraction liquid, and having a good cooling effect. The U-shaped flow guiding plate has a larger outlet, facilitating the dispersion and export of the refluxed extraction liquid over a larger area. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 is of the present utility model Figure 1 amplified structural schematic diagram at A in;

[0018] Figure 3 is an overall exploded structural schematic diagram of the present utility model;

[0019] Figure 4 is an overall sectional structural schematic diagram of the present utility model.

[0020] In the figure: 1. water bath tank body; 2. base; 3. heating plate; 4. extraction tank; 5. end cover; 6. fin; 7. inlet pipe; 8. outlet pipe; 9. annular pipe; 10. reflux pipe; 11. distribution plate; 12. flow guiding plate; 13. water cooling pipe; 14. support frame; 15. immersion cylinder; 16. flow guiding pipe; 17. temporary storage tank; 18. heat insulation plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Example:

[0023] Please refer to Figures 1 - 4, in the embodiment of the present utility model, a chemical drug synthesis heat extraction device includes a water bath tank body 1. A base 2 is welded to the bottom of the water bath tank body 1. A heating plate 3 is installed at the upper end of the base 2. The heating plate 3 heats the bottom end of the water bath tank body 1. A plurality of extraction tanks 4 are placed inside the water bath tank body 1. An end cover 5 is buckled on the upper end of the extraction tank 4. A plurality of fins 6 are welded to the outer wall of the extraction tank 4. A liquid inlet pipe 7 and an air outlet pipe 8 are connected to the upper end of the end cover 5. A support frame 14 is fixedly welded to one side of the water bath tank body 1. A ring pipe 9, an immersion cylinder 15 and a temporary storage tank 17 are fixedly installed on the support frame 14. A plurality of air outlet pipes 8 are connected to the bottom end of the ring pipe 9. A U-shaped return pipe 10 is welded to the upper end of the ring pipe 9. The U-shaped return pipe 10 can prevent fluid from flowing back. The upper end of the return pipe 10 is connected to one side of the immersion cylinder 15. The height of the return pipe 10 is greater than the height of the immersion cylinder 15. The liquid outlet end of the return pipe 10 is sleeved with a water cooling pipe 13. The water cooling pipe 13 is connected to the inlet and outlet water pipes. A diversion pipe 16 is connected between the immersion cylinder 15 and the temporary storage tank 17. A plurality of liquid inlet pipes 7 are connected to the bottom of the temporary storage tank 17. Valves are connected to both the diversion pipe 16 and the liquid inlet pipe 7. Water for water bath heating is introduced into the water bath tank body 1 so that a plurality of extraction tanks 4 are surrounded by the water body. The bottom of the water bath tank body 1 is supported by the base 2, and the heating plate 3 is supplied with combustible gas to perform constant temperature heating on the bottom of the water bath tank body 1. After the water body in the water bath tank body 1 is heated, the heat is transferred to a plurality of extraction tanks 4 inside at a constant temperature. One side of the water bath tank body 1 supports the immersion cylinder 15 through the support frame 14. Chemical drug extraction raw materials are placed in the immersion cylinder 15, and ethanol leaching solution is added to mix the ethanol leaching solution with the extraction raw materials, so that the target extract is mixed with ethanol. The mixed solution opens the valve through the diversion pipe 16 and is introduced into the temporary storage tank 17 at a lower vertical position on one side. The temporary storage tank 17 temporarily stores the extracted fluid. A plurality of liquid inlet pipes 7 are connected to the bottom end of the temporary storage tank 17. The liquid inlet pipes 7 introduce the fluid into the extraction tanks 4. The ethanol extraction solution is heated and evaporated by water bath heating to concentrate and extract the chemical drug target extract. The extracted solution after heating and evaporation is concentrated into the ring pipe 9 through the air outlet pipe 8. The ring pipe 9 centrally guides the concentrated vapor into the U-shaped return pipe 10. The water cooling pipe 13 connected to the outlet end of the return pipe 10 performs water cooling, so that the extracted solution can be quickly liquefied and refluxed, avoiding the overflow of the water vapor of the extracted solution, ensuring a high recovery rate. At the same time, the outlet of the return pipe 10 is connected to the middle of one side of the immersion cylinder 15, and the mixture placed inside the immersion cylinder 15 is used for secondary cooling and liquefaction of the extracted solution, ensuring that most of the extracted solution is recovered and reducing the loss of the extracted solution. At the same time, the temporary storage tank 17 can temporarily store a large amount of extracted solution mixture. The fluid is introduced through the valve on the liquid inlet pipe 7 to perform continuous liquid inlet operation. A plurality of extraction tanks 4 perform synchronous heat extraction, and a plurality of fins 6 are connected to the outer wall of the extraction tank 4 to increase the contact area with the water bath, improve the heat exchange efficiency, and improve the efficiency of heat extraction. The overall heat extraction efficiency of the device is high, and at the same time, the loss of the extracted solution is reduced, the use effect is good, and the operation is convenient.

[0024] Preferably, as Figure 1 and Figure 3 shown, multiple extraction tanks 4 in the water bath tank body 1 are annularly distributed, and multiple fins 6 on the extraction tank 4 are annularly and equidistantly distributed. Multiple annularly distributed extraction tanks 4 in the water bath tank body 1 perform heat exchange with the water body of the water bath at equal positions, with uniform heat distribution. Moreover, the multiple annularly and equidistantly distributed fins 6 on the extraction tank 4 ensure the uniformity of heat distribution during heat exchange, enabling the extraction tank 4 to be uniformly heated as a whole.

[0025] Preferably, as Figure 3 shown, the height of the fin 6 matches the height of the extraction tank 4. The fin 6 is made of copper material. The fin 6 with a height matching that of the extraction tank 4 enables the exchanged heat to be uniformly vertically distributed, ensuring uniform heat distribution. Moreover, the fin 6 made of copper material has a high thermal conductivity, further improving the exchange efficiency.

[0026] Preferably, as Figure 3 and Figure 4 shown, a distribution plate 11 is welded to the liquid outlet end of the return pipe 10. Multiple flow guide plates 12 are connected to the distribution plate 11. The distribution plate 11 welded to the liquid outlet end of the return pipe 10, in cooperation with the multiple flow guide plates 12, enables the returned extraction liquid to be distributed at multiple points, increasing the contact area with the mixture in the immersion cylinder 15 and rapidly cooling the returned extraction liquid for the second time, with good cooling effect.

[0027] Preferably, as Figure 4 shown, the distribution plate 11 is vertically arranged, and multiple flow guide plates 12 on the distribution plate 11 are equidistantly arranged. The vertically arranged distribution plate 11 vertically and equidistantly distributes the returned extraction liquid in the immersion cylinder 15, enabling the returned extraction liquid to be distributed at multiple points on the vertical layer and being evenly dispersed.

[0028] Preferably, as Figure 4 shown, the flow guide plate 12 is U-shaped. The U-shaped flow guide plate 12 has a larger liquid outlet, facilitating the more extensive dispersion and export of the returned extraction liquid.

[0029] Preferably, as Figure 1 shown, a heat insulation plate 18 is connected to the bottom of the temporary storage tank 17. The diameter of the heat insulation plate 18 matches the diameter of the water bath tank body 1. The heat insulation plate 18 at the bottom of the temporary storage tank 17 provides heat insulation to prevent the heat of the water bath tank body 1 from being transferred into the temporary storage tank 17.

[0030] The working principle of the utility model is as follows: Water for water bath heating is introduced into the water bath tank body 1, so that a plurality of extraction tanks 4 are surrounded by the water. The bottom of the water bath tank body 1 is supported by a base 2, and a combustible gas is introduced into the heating plate 3 to perform constant temperature heating at the bottom of the water bath tank body 1. After the water in the water bath tank body 1 is heated, the heat is transferred to a plurality of internal extraction tanks 4 at a constant temperature. One side of the water bath tank body 1 supports the immersion cylinder 15 through a support frame 14. Chemical drug extraction raw materials are placed in the immersion cylinder 15, and ethanol extraction solution is added to mix the ethanol extraction solution with the extraction raw materials, so that the target extract is mixed with ethanol. The mixed solution opens the valve body through a diversion pipe 16 and is introduced into a temporary storage tank 17 at a lower vertical position on one side. The temporary storage tank 17 temporarily stores the extracted fluid. The bottom end of the temporary storage tank 17 is connected to a plurality of liquid inlet pipes 7, and the liquid inlet pipes 7 introduce the fluid into the extraction tank 4. The ethanol extraction solution is heated and evaporated by water bath heating to concentrate and extract the chemical drug target extract. The extracted solution after heating and evaporation is concentrated into a ring pipe 9 through an air outlet pipe 8. The ring pipe 9 guides the concentrated vapor into a U-shaped return pipe 10. The water-cooled pipe 13 connected to the outlet end of the return pipe 10 performs water cooling, so that the extracted solution can be quickly liquefied and refluxed, avoiding the overflow of the water vapor of the extracted solution, ensuring a high recovery rate. At the same time, the outlet of the return pipe 10 is connected to the middle part of one side of the immersion cylinder 15, and the mixture placed inside the immersion cylinder 15 is used for secondary cooling and liquefaction of the extracted solution, ensuring the recovery of most of the extracted solution and reducing the loss of the extracted solution. At the same time, the temporary storage tank 17 can store a large amount of extract mixture. The fluid introduction is controlled by the valve body on the liquid inlet pipe 7 to perform continuous liquid inlet operation. A plurality of extraction tanks 4 perform synchronous thermal extraction, and a plurality of fins 6 are connected to the outer wall of the extraction tank 4 to increase the contact area with the water bath, improve the heat exchange efficiency, and improve the efficiency of thermal extraction. The overall thermal extraction efficiency of the device is high, and at the same time, the loss of the extracted solution is reduced, the use effect is good, and the operation is convenient.

[0031] The above is only the preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the utility model, according to the technical solution of the utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the utility model.

Claims

1. A chemical drug synthesis heat extraction device, comprising a water bath tank body (1), a base (2) welded to the bottom of the water bath tank body (1), a heating plate (3) mounted on the upper end of the base (2), the heating plate (3) heating the bottom end of the water bath tank body (1), characterized in that: A plurality of extraction tanks (4) are placed inside the water bath tank body (1), the upper ends of the extraction tanks (4) are buckled with end covers (5), the outer walls of the extraction tanks (4) are welded with a plurality of fins (6), the upper ends of the end covers (5) are connected to liquid inlet pipes (7) and air outlet pipes (8), a support frame (14) is fixedly welded to one side of the water bath tank body (1), a ring tube (9), a liquid immersion cylinder (15) and a temporary storage tank (17) are fixedly mounted on the support frame (14), the plurality of air outlet pipes (8) are connected to the bottom ends of the ring tubes (9), and the ring tubes (9) are connected to the bottom ends of the ring tubes (9). A U-shaped return pipe (10) is welded to the upper end, the upper end of the return pipe (10) is connected to one side of the immersion cylinder (15), the height of the return pipe (10) is greater than the height of the immersion cylinder (15), the liquid outlet end of the return pipe (10) is sleeved with a water cooling pipe (13), the water cooling pipe (13) is connected to the water inlet and outlet pipes, a guide pipe (16) is connected between the immersion cylinder (15) and the temporary storage tank (17), the bottom of the temporary storage tank (17) is connected to a plurality of liquid inlet pipes (7), and the guide pipe (16) and the liquid inlet pipe (7) are both connected to a valve body.

2. A chemical drug synthesis heat extraction device according to claim 1, characterized in that: The plurality of extraction tanks (4) in the water bath tank body (1) are distributed in a ring shape, and the plurality of fins (6) on the extraction tanks (4) are distributed in a ring shape at equal intervals.

3. A chemical drug synthesis heat extraction device according to claim 2, characterized in that: The height of the fin (6) matches the height of the extraction tank (4), and the fin (6) is made of copper material.

4. The chemical drug synthesis heat extraction device according to claim 1, characterized in that: A distribution plate (11) is welded to the liquid outlet end of the reflux pipe (10), and a plurality of guide plates (12) are connected to the distribution plate (11).

5. A chemical drug synthesis heat extraction device according to claim 4, characterized in that: The distribution plate (11) is arranged vertically, and the plurality of guide plates (12) on the distribution plate (11) are arranged at equal intervals.

6. A chemical drug synthesis heat extraction device according to claim 5, characterized in that: The guide plate (12) is arranged in a U shape.

7. The chemical drug synthesis heat extraction device according to claim 1, characterized in that: The bottom of the temporary storage tank (17) is connected to a heat insulation plate (18), and the diameter of the heat insulation plate (18) matches the diameter of the water bath tank body (1).

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