Water distribution device for producing ethyl trifluorocrotonate

Abstract

The utility model provides a water diversion device for ethyl trifluorocrotonate production, and relates to the technical field of ethyl trifluorocrotonate production, the water diversion device comprises a water segregator main pipe, the outer side of the water segregator main pipe is provided with a supporting assembly, the supporting assembly comprises a limiting ring, a rotating cylinder, a mounting groove piece, a threaded cylinder, a threaded butt joint and a threaded rod, the limiting rings are symmetrically installed on the outer side of the water segregator main pipe, the rotating cylinder is movably installed on the outer side of the water segregator main pipe and located between the limiting rings, the installation groove piece is installed on one side of the rotating cylinder, and the threaded butt joint is installed at one end of the threaded cylinder. The threaded cylinder is connected with the mounting groove piece through a threaded butt joint and is mounted on one side of the rotating cylinder, and a threaded rod is mounted in the threaded cylinder in a threaded mode. According to the utility model, the threaded cylinder is connected with the rotating cylinder, so that the supporting component can support the water segregator, and the situation that the water segregator is unstable in connection with a reaction kettle and a condenser, so that the water segregator falls off during use and the use is influenced is prevented.

Description

Technical Field

[0001] This utility model relates to the field of ethyl trifluorocrotonate production technology, specifically a water separation device for the production of ethyl trifluorocrotonate. Background Technology

[0002] The synthetic route for ethyl trifluorocrotonate uses ethyl trifluoroacetate as the starting material and is synthesized in a one-pot process. The reaction process is divided into two steps. First, ethyl trifluoroacetate reacts with ethyl acetate (sodium ethoxide as a catalyst) to synthesize ethyl trifluoroacetoacetate. Then, ethyl trifluoroacetoacetate reacts with ammonium acetate to generate the target product. The reaction between ethyl trifluoroacetoacetate and ammonium acetate is a reversible reaction. Water is generated during the reaction, which hinders the reaction rate and affects the conversion rate, preventing the starting materials from reacting completely. Therefore, a water separator is needed to continuously remove the generated water.

[0003] Chinese Patent Publication No. CN213132032U discloses a water separator for organic chemistry experiments, including a water-blocking mechanism. The water-blocking mechanism includes a connecting block, a T-shaped slip ring, a rotating ring, a T-shaped ring groove, a rubber ring, a lead screw, a water-blocking column, a water passage hole, and a through hole. A water passage hole is provided on one side of the connecting block, and a through hole is provided inside the water passage hole. A T-shaped slip ring is fixedly connected to the top of the connecting block, and a T-shaped ring groove is provided at the bottom of the rotating ring. The T-shaped slip ring is slidably connected to the inside of the T-shaped ring groove. A lead screw is threaded to the inner wall of the rotating ring, and the bottom end of the lead screw extends into the inside of the water passage hole through the through hole. During the experiment, rotating the rubber ring drives the rotating ring to rotate. Due to the external thread, the lead screw moves up and down, thereby blocking the water passage hole. When the experimenter injects water into the water separator, excess water will not enter the flat-bottomed beaker through the connecting pipe, thus allowing the experiment to proceed smoothly. Excess water can be discharged through the water separator funnel.

[0004] In a publicly disclosed patent document, a water separator for organic chemistry experiments is designed so that when the experimenter injects water into the water distribution pipe, excess water will not enter the flat-bottomed beaker through the connecting pipe, thus allowing the experiment to proceed smoothly. However, the water separator lacks an independent support component during installation, which results in the inability to guarantee its stability during use.

[0005] Therefore, a water separation device for the production of ethyl trifluorocrotonate is proposed. Utility Model Content

[0006] In view of this, the present invention provides a water separation device for the production of ethyl trifluorocrotonate, so as to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial alternative.

[0007] The technical solution of this utility model is implemented as follows: A water separator for the production of ethyl trifluorocrotonate includes a main water separator pipe. A support assembly is installed on the outside of the main water separator pipe. The support assembly includes a limiting ring, a rotating cylinder, a mounting groove, a threaded cylinder, a threaded connector, and a threaded rod. The limiting rings are symmetrically installed on the outside of the main water separator pipe. The rotating cylinder is movably installed on the outside of the main water separator pipe and is located between the limiting rings. The mounting groove is installed on one side of the rotating cylinder. The threaded connector is installed at one end of the threaded cylinder. The threaded cylinder is connected to the mounting groove through the threaded connector and installed on one side of the rotating cylinder. A threaded rod is installed on the internal thread of the threaded cylinder.

[0008] Preferably, a connecting post is installed at one end of the threaded rod, and an arc-shaped fixing member is installed at one end of the connecting post.

[0009] Preferably, a threaded sleeve is installed through the front of the arc-shaped fastener, a fixing screw is installed through the inside of the threaded sleeve, and an anti-slip pad is installed on the inner wall of the back of the arc-shaped fastener.

[0010] Preferably, a drain pipe is connected through the bottom end of the main water distributor, and a stop valve is installed on the outside of the drain pipe.

[0011] Preferably, an overflow pipe is connected through one side of the main water distributor, a first connector is installed at the bottom of the overflow pipe, and an anti-slip sleeve is installed on the outside of the first connector.

[0012] Preferably, a second connector is installed at the top of the main water distributor, and the interior of the second connector is fitted with an anti-slip liner.

[0013] The present invention has the following advantages due to the adoption of the above technical solution:

[0014] 1. In this utility model, the support assembly is installed on the main pipe of the water distributor, thereby making the water distributor more stable during use. The water distributor needs to be connected to the condenser and the reactor during use. The support assembly mainly supports the main pipe of the water distributor through a threaded rod and a threaded cylinder, thereby supporting the entire water distributor. One end of the threaded rod is fixed to the external frame through an arc-shaped fixing member. The arc-shaped fixing member is fixed by installing the fixing member on the outside of the frame, and then using the fixing screw to rotate to clamp the arc-shaped fixing member on the outside of the frame. The anti-slip pad plays a role in preventing slippage. Since the rotating cylinder is limited to the outside of the main pipe of the water distributor by the limiting ring, and is connected to the rotating cylinder through the threaded cylinder, the support assembly supports the water distributor and prevents the water distributor from falling during use due to unstable connection with the reactor and condenser, thus affecting its use.

[0015] 2. In this utility model, since the rotating cylinder is movably installed on the outside of the main pipe of the water distributor and is limited in the upper and lower parts by the limiting ring, the water distributor can rotate under the action of the rotating cylinder when it is supported and used, thereby changing the direction of use of the water distributor, making the water distributor more flexible to use after being supported. At the same time, the length of the support can be adjusted by rotating the threaded rod, making the support assembly more convenient to use.

[0016] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is a schematic diagram of the rotating cylinder structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the threaded cylinder structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the arc-shaped fixing component of this utility model.

[0022] Reference numerals in the attached diagram: 1. Main pipe of the water distributor; 2. Drain pipe; 3. Stop valve; 4. Overflow pipe; 5. First connector; 6. Anti-slip sleeve; 7. Second connector; 8. Anti-slip liner; 9. Limiting ring; 10. Rotating cylinder; 11. Mounting groove; 12. Threaded cylinder; 13. Threaded butt joint; 14. Threaded rod; 15. Connecting column; 16. Arc-shaped fixing piece; 17. Threaded sleeve; 18. Fixing screw; 19. Anti-slip pad. Detailed Implementation

[0023] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0024] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0025] like Figures 1-4 As shown, this utility model embodiment provides a water separation device for the production of ethyl trifluorocrotonate;

[0026] The device includes a main water distributor 1 and a support assembly. The support assembly is installed on the outside of the main water distributor 1. The support assembly includes a limiting ring 9, a rotating cylinder 10, a mounting groove 11, a threaded cylinder 12, a threaded connector 13, and a threaded rod 14. The limiting ring 9 is symmetrically installed on the outside of the main water distributor 1. The rotating cylinder 10 is movably installed on the outside of the main water distributor 1 and is located between the limiting rings 9. The mounting groove 11 is installed on one side of the rotating cylinder 10. The threaded connector 13 is installed at one end of the threaded cylinder 12. The threaded cylinder 12 is connected to the mounting groove 11 through the threaded connector 13 and installed on one side of the rotating cylinder 10. The threaded rod 14 is installed inside the threaded cylinder 12. A connecting post 15 is installed at one end of the threaded rod 14. An arc-shaped fixing part 16 is installed at one end of the connecting post 15. A threaded sleeve 17 is installed through the front of the arc-shaped fixing part 16. A fixing screw 18 is installed through the inside of the threaded sleeve 17. An anti-slip pad 19 is installed on the inner wall of the back of the arc-shaped fixing part 16.

[0027] The water separator primarily uses the density difference between water and organic matter, employing the principle of gravity settling to remove impurities and moisture. It mainly consists of a main water separator pipe 1, an overflow pipe 4, and a drain pipe 2. The main water separator pipe 1 provides a location for the installation of the support assembly. The support assembly, installed on the main water separator pipe 1, ensures greater stability during operation. The water separator needs to be connected to a condenser and a reaction vessel. The support assembly primarily supports the main water separator pipe 1 through a threaded rod 14 and a threaded cylinder 12, thus supporting the entire water separator. The threaded rod 14 can rotate via the threaded cylinder 12, thereby changing the support length of the support assembly. One end of the threaded rod 14 is fixed to the external frame via an arc-shaped fixing member 16, which is installed on the outside of the frame. Then, the fixed screw 18 is rotated to clamp the arc-shaped fixing part 16 on the outside of the frame. The anti-slip pad 19 plays a role in preventing slippage. Since the rotating cylinder 10 is limited to the outside of the water distributor main pipe 1 by the limiting ring 9, and is connected to the rotating cylinder 10 by the threaded cylinder 12, the support assembly supports the water distributor. This prevents the water distributor from being unstablely connected to the reactor and condenser, which would cause the water distributor to fall off during use and affect its use. Since the rotating cylinder 10 is movably installed on the outside of the water distributor main pipe 1 and is limited up and down by the limiting ring 9, the water distributor can rotate under the action of the rotating cylinder 10 when supported, thereby changing the direction of use of the water distributor. This makes the use of the water distributor more flexible after support. At the same time, the length of the support can be adjusted by rotating the threaded rod 14, making the support assembly more convenient to use.

[0028] like Figure 1 As shown, this utility model embodiment provides a water separation device for the production of ethyl trifluorocrotonate;

[0029] It includes a drain pipe 2 and an overflow pipe 4. The bottom end of the main water distributor 1 is connected to the drain pipe 2. A stop valve 3 is installed on the outside of the drain pipe 2. The overflow pipe 4 is connected to one side of the main water distributor 1. The bottom end of the overflow pipe 4 is equipped with a first connector 5. An anti-slip sleeve 6 is installed on the outside of the first connector 5. The top end of the main water distributor 1 is equipped with a second connector 7, and an anti-slip liner 8 is installed inside the second connector 7.

[0030] One end of the condenser is connected to the second connector 7. The anti-slip liner 8 improves the stability of the connection. The bottom end of the overflow pipe 4 is connected to the reactor through the first connector 5. The anti-slip sleeve 6 plays a role in preventing slippage. By opening the stop valve 3, the water separated in the main water separator 1 can be discharged to the outside, while the n-hexane located on the upper layer of water enters the reactor through the overflow pipe 4.

[0031] In operation, the present invention is as follows: First, the water separator is installed on the support frame of the water separator through the support assembly. The top of the water separator is connected to the condenser through the second connector 7, and the overflow pipe 4 is connected to the reactor. After the condenser is connected to the water separator, the steam is condensed and first enters the water separator main pipe 1 of the water separator. The water settles at the bottom, the upper layer of n-hexane flows into the reactor through the overflow pipe 4, and the lower layer of water opens the stop valve 3 and is discharged through the drain pipe 2.

[0032] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A water separation device for the production of ethyl trifluorocrotonate, characterized in that: The device includes a main water distributor (1), on the outside of which a support assembly is installed. The support assembly includes a limiting ring (9), a rotating cylinder (10), an installation groove (11), a threaded cylinder (12), a threaded connector (13), and a threaded rod (14). The limiting ring (9) is symmetrically installed on the outside of the main water distributor (1). The rotating cylinder (10) is movably installed on the outside of the main water distributor (1) and is located between the limiting rings (9). The installation groove (11) is installed on one side of the rotating cylinder (10). The threaded connector (13) is installed at one end of the threaded cylinder (12). The threaded cylinder (12) is connected to the installation groove (11) through the threaded connector (13) and installed on one side of the rotating cylinder (10). The threaded rod (14) is installed on the internal thread of the threaded cylinder (12).

2. A water separation device for the production of ethyl trifluorocrotonate according to claim 1, characterized in that: A connecting post (15) is installed at one end of the threaded rod (14), and an arc-shaped fastener (16) is installed at one end of the connecting post (15).

3. A water separation device for the production of ethyl trifluorocrotonate according to claim 2, characterized in that: A threaded sleeve (17) is installed through the front of the arc-shaped fastener (16), a fixing screw (18) is installed through the inside of the threaded sleeve (17), and an anti-slip pad (19) is installed on the inner wall of the back of the arc-shaped fastener (16).

4. A water separation device for the production of ethyl trifluorocrotonate according to claim 1, characterized in that: The bottom end of the main water distributor (1) is connected to a drain pipe (2), and a stop valve (3) is installed on the outside of the drain pipe (2).

5. A water separation device for the production of ethyl trifluorocrotonate according to claim 4, characterized in that: An overflow pipe (4) is connected through one side of the main pipe (1) of the water distributor. A first connector (5) is installed at the bottom end of the overflow pipe (4), and an anti-slip sleeve (6) is installed on the outside of the first connector (5).

6. A water separation device for the production of ethyl trifluorocrotonate according to claim 5, characterized in that: The top of the main water distributor (1) is equipped with a second connector (7), and the inside of the second connector (7) is equipped with an anti-slip liner (8).

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