Backflow water distribution device
By designing a reflux water separation device for insulation inner core and spiral insulation tube, the complexity of organic solvent separation with high density is solved, efficient water removal and convenient reaction monitoring are achieved, and the operation process is simplified.
Patent Information
- Application Number
- CN202422591397.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-10-25
AI Technical Summary
The existing water dispensing device cannot effectively treat organic solvents with a density greater than water, resulting in complexity of the device and poor water removal effect, and the inability to easily observe and track the reaction process.
A reflux water separation device is designed, which uses insulation inner core and spiral insulation pipe to insulate the steam channel. Combined with a rotatable connecting sleeve to control the reflux pipe, it realizes the separation and collection of organic solvents of different densities, simplifies operation and facilitates observation of the reaction process.
It realizes efficient separation and collection of organic solvents of different densities, simplifies operation steps, improves water removal effect, and facilitates real-time monitoring of the reaction process.
Smart Images
Figure CN223263459U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medicine production equipment, in particular to a reflux water separation device. Background Art
[0002] Finerenone is an important organic synthetic raw material widely used in pharmaceuticals, dyes, pesticides, and other fields. Finerenone can be produced by using ethyl benzoate as a raw material through a condensation reaction. This reaction is generally reversible. During the synthesis reaction, a water separator is required to remove the generated water, disrupting the reaction equilibrium and thereby improving the product yield and conversion rate. Water can be removed by adding an organic solvent that forms an azeotrope with water to remove the generated water from the reaction system. A water separator is then used to separate the water based on the different densities of water and the organic solvent. The organic solvent is then returned to the reaction flask for reuse. Existing water separation devices are generally only suitable for separating solvents that are incompatible with water and have a lower density than water. After the organic solvent and water are separated, the water is released through a piston at the bottom, while the organic solvent flows back into the reaction flask along a branch pipe. For organic solvents with a higher density than water, multiple branch pipes and control valves are required, making the entire device complicated and requiring cumbersome steps to control multiple control valves. Furthermore, the device is equipped with a branch pipe in the middle to allow steam to pass through. The mixed vapor of the organic solvent and water used in the reaction evaporates from the reaction flask and enters a condenser with condensed water along the branch pipe. However, due to the large temperature difference between the branch pipe and the steam or the branch pipe is too long, the steam condenses midway, affecting the water removal effect. The conventional solution is to wrap the outer wall of the branch pipe with a layer of insulation material, which is not only inconvenient to operate but also not conducive to observing and tracking the reaction progress. Utility Model Content
[0003] The purpose of this application is to provide a reflux water separation device to solve the problems in the prior art.
[0004] The embodiment of the present application provides a reflux water diversion device, comprising a water diversion assembly and a steam pipe; the water diversion assembly is composed of a condenser, a guide pipe and a reflux pipe; one end of the steam pipe is connected to the gas outlet of the reaction bottle, and the other end of the steam pipe is provided with a connecting branch pipe; the connecting branch pipe is connected to the condenser; an insulation core is provided inside the connecting branch pipe; a steam channel is formed between the insulation core and the pipe wall of the connecting branch pipe; a spiral insulation pipe is provided in the insulation core; an auxiliary pipe is provided at the end of the insulation pipe; the auxiliary pipe passes through the guide pipe and is connected to the external circulation The condenser is connected to the pump; the bottom of the condenser is fixedly connected to the guide tube; a circulation valve is provided at the bottom of the guide tube; the reflux pipe includes a first reflux pipe and a second reflux pipe; the first reflux pipe is obliquely arranged on the side of the circulation valve; the end of the first reflux pipe is communicated with the reflux port on the top of the reaction bottle; a molecular sieve is provided at the junction of the first reflux pipe and the guide tube; the guide tube has two symmetrically arranged circulation holes; a connecting sleeve is provided on the outside of the circulation hole; the connecting sleeve is rotatably connected to the guide tube; the connecting sleeve is communicated with the second reflux pipe.
[0005] Furthermore, the second return pipe is a vertically downward-bending curved pipe, wherein the vertical section of the pipe is a telescopic pipe.
[0006] Furthermore, the first reflux pipe is provided with a connection port; a spacer is provided on the outer side of the connection port; and the spacer is slidably connected to the outer wall of the first reflux pipe.
[0007] Furthermore, the bottom of the guide tube is connected to the collecting bottle; and a second recovery port is provided on the body of the collecting bottle.
[0008] Furthermore, the second recovery port is provided with an external rubber plug.
[0009] The beneficial effects of the utility model are: the utility model has a simple structure, can perform water removal operations on organic solvents of different densities, the operating principle is easy to understand, and only needs to rotate the connecting sleeve to adopt different connection combinations. At the same time, the connected branch pipe is insulated by using a built-in insulation core, which is conducive to observing and tracking the reaction process. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is the overall structure diagram of the utility model.
[0011] Figure 2 Schematic diagram of the structure of the connecting sleeve connection.
[0012] Figure 3 Schematic diagram of the structure of the first reflux pipe.
[0013] Figure 4 Schematic diagram of the connecting branch pipe structure.
[0014] In the picture:
[0015] 1. Steam pipe; 2. Connecting branch pipe; 20. Insulated inner core; 201. Auxiliary pipe; 21. Steam channel; 3. Condenser; 4. Draft tube; 40. Circulation hole; 5. Collecting bottle; 50. Second recovery port; 501. Rubber stopper; 6. First reflux pipe; 60. Molecular sieve; 61. Spacer; 62. Connecting port; 7. Second reflux pipe; 70. Vertical section pipe; 8. Connecting sleeve; 9. Circulation valve; 10. Reaction bottle. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0017] like Figures 1 to 4 A reflux water diversion device is shown, comprising a water diversion assembly and a steam pipe 1; the water diversion assembly consists of a condenser 3, a guide pipe 4 and a reflux pipe; one end of the steam pipe 1 is connected to the air outlet of the reaction bottle 10, and the other end of the steam pipe 1 is provided with a connecting branch pipe 2; the connecting branch pipe 2 is communicated with the condenser 3; an insulation core 20 is provided inside the connecting branch pipe 2; a steam channel 21 is formed between the insulation core 20 and the pipe wall of the connecting branch pipe 2; a spiral insulation pipe is provided in the insulation core 20; an auxiliary pipe 201 is provided at the end of the insulation pipe; the auxiliary pipe 201 passes through the guide pipe 4 and is connected to an external circulation pump; a heat medium can be filled into the insulation pipe through the circulation pump to maintain the temperature of the external steam channel 21, while avoiding external obstruction of the connecting branch pipe 2, which is convenient for operation. Real-time observation; the bottom of the condenser 3 is fixedly connected to the guide tube 4; a circulation valve 9 is provided at the bottom of the guide tube 4; the reflux pipe includes a first reflux pipe 6 and a second reflux pipe 7; the first reflux pipe 6 is tilted on the side of the circulation valve 9; the end of the first reflux pipe 6 is connected to the reflux port on the top of the reaction bottle 10; a molecular sieve 60 is provided at the junction of the first reflux pipe 6 and the guide tube 4, and the molecular sieve 60 can screen out water molecules in the organic solvent; there are two symmetrically arranged flow holes 40 on the guide tube 4; a connecting sleeve 8 is provided on the outside of the flow hole 40; the connecting sleeve 8 and the guide tube 4 are rotatably connected; the connecting sleeve 8 is connected to the second reflux pipe 7, and rotating the connecting sleeve 8 can connect the second reflux pipe 7 to different flow holes 40.
[0018] The second reflux pipe 7 is a vertical downward-bending curved pipe; the vertical section of the pipe is a telescopic pipe 70. By rotating the connecting sleeve 8, the second reflux pipe 7 is controlled to be connected to the first reflux pipe 6 or the collecting bottle 10 to form different reflux channels.
[0019] The first return pipe 6 is provided with a connection port 62 ; a diaphragm 61 is provided outside the connection port 62 ; the diaphragm 61 is slidably connected to the outer wall of the first return pipe 6 , and the diaphragm 61 is in an arc shape that fits the pipe wall, and the connection port 62 is closed by sliding the diaphragm 61 .
[0020] The bottom of the guide tube 4 is connected to the collecting bottle 10; a second recovery port 50 is provided on the body of the collecting bottle 10, and the collecting bottle 10 is used to store recycled water. When the density of the organic solution is less than the density of water, the connecting sleeve 8 is rotated to connect the second recovery port 50 to the second reflux pipe 7, and the water flows out of the second reflux pipe 7 and flows into the collecting bottle 5.
[0021] The second recycling port 50 is provided with an external rubber plug 501 , which can be used to plug the second recycling port 50 when not in use.
[0022] The specific operation steps are as follows: as the reaction in the reaction bottle 10 proceeds, the organic vapor enters the condenser 3 from the top steam pipe 1, and after cooling, it drips into the lower guide tube 4 for static stratification. At this time, the circulation valve 9 at the bottom of the guide tube 4 is closed. When the density of the organic solvent is less than the density of water, the organic solvent floats on the water surface. The connecting sleeve 8 is rotated to connect the second reflux pipe 7 with the connecting port 62 on the first reflux pipe 6. The upper layer of organic solvent flows from the circulation hole 40 through the second reflux pipe 7 into the reaction bottle 10. The circulation valve 9 is opened to allow the lower layer of water to flow into the collection bottle 5. When the density of the organic solvent is greater than the density of water, the organic solvent sinks under the water. The connecting sleeve 8 is rotated to connect the second reflux pipe 7 with the second recovery port 50 on the collection bottle 5. The upper layer of water flows from the circulation hole 40 through the second reflux pipe 7 into the reaction bottle 10, and the lower layer of organic solvent flows back to the reaction bottle 10 from the first reflux pipe 6.
[0023] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.
Claims
1. A reflux water diversion device, characterized in that: and a tube connecting the discharging opening of the pump with the help of a plug in the outlet pipe, and the tube connecting the discharging opening is connected with the outlet pipe of the pump to the outlet.
2. The reflux water diversion device according to claim 1, characterized in that: The second return pipe is a vertical downward-bending curved pipe, wherein the vertical section of the pipe is a telescopic pipe.
3. The reflux water diversion device according to claim 1, characterized in that: The first reflux pipe is provided with a connection port; a septum is provided on the outer side of the connection port; and the septum is slidably connected to the outer wall of the first reflux pipe.
4. The reflux water diversion device according to claim 1, characterized in that: The bottom of the guide tube is connected to the collecting bottle; and a second recovery port is provided on the body of the collecting bottle.
5. The reflux water diversion device according to claim 4, characterized in that: The second recovery port is provided with an external rubber plug.