A phase separation solution discharge valve for the production of 4-methylthiazole-5-carboxaldehyde

Abstract

The invention discloses a phase-separated solution discharge valve for 4-methylthiazole-5-formaldehyde production, relates to the field of valve technology, comprises an outer shell, an inner shell is provided in the outer shell, a first liquid discharge channel is formed between the outer shell and the inner shell, the inner shell has a first connecting rod, a connecting plate is provided on the first connecting rod, a floating bag is provided on the connecting plate, a sealing pad is provided at the lower end of the connecting plate, a first through hole is provided in the middle of the first connecting rod, a second connecting rod is provided in the first through hole, a stop block is provided on the second connecting rod, a second through hole is provided in the second connecting rod, a connecting ring is provided in the second through hole, a convex ring is provided on the connecting ring, a stop ring is provided in the middle of the connecting ring, a lifting column is provided in the middle of the stop ring, a sealing sheet is provided at the top of the lifting column, a boss is provided at the bottom of the inner shell, a connecting frame is provided at the upper end of the boss, a lifting rod is provided on the connecting frame, a second liquid discharge channel is provided in the middle of the first connecting rod and the boss, and a liquid discharge pipe is provided at the lower end of the inner shell. The present invention can improve the separation effect of the two-phase solution.

Description

Technical Field

[0001] The invention relates to the technical field of valves, in particular to a phase-separated solution discharge valve for producing 4-methylthiazole-5-carboxaldehyde. Background Art

[0002] In the production process of 4-methylthiazole-5-carboxaldehyde, after the condensation reaction and the neutralization reaction, a layered solution will appear in the reactor, and the two solutions need to be discharged to different processes for the next step of processing. However, the two phases are prone to uneven separation during discharge, or the valve cannot be closed in time when the lower solution is discharged and some of the upper solution is discharged, or the lower solution is not discharged sufficiently, resulting in a portion of the upper solution remaining when the upper solution is discharged.

[0003] A Chinese invention patent with publication number CN106641367A discloses an oil-water separation float valve, which is characterized in that it includes a base, an oil guide cylinder installed in the base and a float floatingly placed in the oil guide cylinder, the top of the oil guide cylinder is provided with the oil outlet, the bottom of the oil guide cylinder is provided with the oil suction port, the oil outlet is connected to the inlet end of an oil guide pipe; the float floats up and down during the change of the buoyancy of water and oil, the buoyancy of water lifts the float, so that the float closes the inlet end of the oil guide pipe, the buoyancy of oil is insufficient to lift the float, so that the float falls, and the inlet end of the oil guide pipe is opened to suck oil.

[0004] However, the above invention still has the following shortcomings when used: the valve in the above patent controls the switch of the invention by making the float float up and down through the different buoyancy of oil and water. However, even if the two-phase solution has different buoyancy on the float, the density difference between the two-phase solution is generally not too large, and the float needs to be between the two. Therefore, the floating speed and sinking speed of the float in the two-phase solution will not be too fast, which results in the valve being unable to be closed in time when separating the two-phase solution, and therefore, the two-phase solution cannot be completely separated. Summary of the invention

[0005] The object of the present invention is to provide a phase-separated solution discharge valve for producing 4-methylthiazole-5-carboxaldehyde, so as to solve the technical problem of incomplete separation of two-phase solution in the prior art.

[0006] The present invention provides a phase-separated solution discharge valve for the production of 4-methylthiazole-5-formaldehyde, comprising a straight cylindrical outer shell, the inner shell is provided with a straight cylindrical inner shell which is colinear with the axis of the outer shell, a plurality of connecting blocks for connecting the outer shell and the inner shell are provided between the outer shell and the inner shell, a first liquid discharge channel is formed between the outer shell and the inner shell, a first connecting rod is slidably connected in the inner shell, a connecting plate is provided at the upper end of the first connecting rod, a floating bag fixedly connected to the connecting plate is provided on the connecting plate, a sealing pad is provided at the lower end of the connecting plate, a first through hole is provided in the middle of the first connecting rod, a second connecting rod is slidably connected in the first through hole, a limit block is provided at the upper end of the second connecting rod, and a middle portion of the second connecting rod is provided with a sealing pad. A second through hole is provided at the part, a connecting ring is provided at the upper end of the second through hole, a convex ring is provided on the inner edge of the connecting ring, a limiting ring is also provided in the middle of the connecting ring, a plurality of mounting blocks are provided between the limiting ring and the connecting ring, a lifting column slidably matched with the limiting ring is provided in the middle of the limiting ring, a sealing sheet is provided on the top of the lifting column, a boss is provided at the bottom of the inner shell, a mesh-shaped connecting frame is provided at the upper end of the boss, a lifting rod matched with the lifting column is provided at the upper end of the connecting frame, a second liquid discharge channel is provided in communication with the first connecting rod and the boss, a liquid discharge pipe fixedly connected with the inner shell is provided at the lower end of the inner shell, and one end of the liquid discharge pipe passes through the side wall of the outer shell and extends to the outside.

[0007] Furthermore, a first flange for connecting to the reaction equipment and a second flange for connecting to the pipeline are provided at the lower part of the shell, and a third flange is provided at one end of the drain pipe extending to the outside of the shell.

[0008] Furthermore, the floating bag is provided with an air nozzle.

[0009] Furthermore, a magnetic metal ring is provided at the lower end of the second connecting rod, and an electromagnet matching with the metal ring is provided on the boss.

[0010] Furthermore, a first sealing ring is provided at the bottom of the groove formed between the boss and the inner shell.

[0011] Furthermore, a second sealing ring is embedded in the upper portion of the side wall of the shell.

[0012] Furthermore, a sealing spring is provided between the sealing sheet and the limiting ring for tensioning the two.

[0013] Furthermore, a third sealing ring is provided at the lower end of the limit block.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] Before work, the present invention is connected to the outlet pipe of the reaction device through the first flange, a pipeline for discharging heavy phase solution is connected to the present invention through the second flange, and a pipeline for discharging light phase solution is connected to the present invention through the third flange, and the pipeline for discharging heavy phase solution and the pipeline for discharging light phase solution are also closed with valves in the prior art. Afterwards, since the float bag is completely immersed in the heavy phase solution, and the liquid level of the heavy phase solution must be greater than the maximum height that the float bag and the first connecting rod can rise to, therefore, the first connecting rod and the second connecting rod will rise to the highest point driven by the float bag. At this time, open the valves on the pipeline for discharging heavy phase solution and the pipeline for discharging light phase solution, that is, open the lower port of the outer shell and the drain pipe. At this time, since the lower end of the sealing sheet will overlap the upper end of the convex ring, the channel in the middle of the second connecting rod will be closed. Therefore, the heavy phase solution can only flow out from the first drainage channel between the outer shell and the inner shell, and be discharged from the lower port of the outer shell. As the heavy phase solution When the liquid level of the heavy phase solution is the same as the height of the float bag, the heavy phase solution is discharged again, which will cause the height of the float bag to gradually decrease. Until the float bag drives the connecting plate and the first connecting rod to move to the lowest point, the sealing gasket will overlap the upper end of the shell and close the first drainage channel. At this time, the heavy phase solution has almost been discharged. Even if a small amount of heavy phase solution remains, it cannot continue to be discharged from the first drainage channel. At this time, the second connecting rod moves downward under the action of gravity and liquid pressure, causing the lifting column to collide with the lifting rod, and the lifting rod lifts the lifting column upward, the sealing sheet is separated from the convex ring, and then the light phase solution can be discharged from the second through hole, and enter the interior of the inner shell, and finally discharged through the drain pipe. Since the height of the remaining heavy phase solution is lower than the height of the limit block, it cannot be discharged from the second through hole. Therefore, the discharged heavy phase solution and the light phase solution can be completely separated in the end, and the trace solution remaining in the reaction device can be discharged through other water outlets later. The invention effectively improves the separation effect of the heavy phase solution and the light phase solution, avoids the influence on the subsequent production, is easy to operate and has a simple structure.

[0016] When discharging the heavy phase solution, the present invention can ensure the sealing performance between the sealing sheet and the limiting ring by tightening the sealing sheet through the sealing spring, thereby preventing the second through hole from opening suddenly and causing the heavy phase solution to be discharged from the discharge pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention when it is installed;

[0019] Figure 2 It is a cross-sectional view of the present invention when installed;

[0020] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0021] Figure 4 for Figure 2 Enlarged view of point C in the middle;

[0022] Figure 5 for Figure 2 The enlarged view of point B in the middle;

[0023] Figure 6 for Figure 3 The enlarged view of point D in the middle;

[0024] Figure 7 It is a cross-sectional view of the present invention.

[0025] Reference numerals:

[0026] 1. Outer shell; 2. Inner shell; 3. Connecting block; 4. First drainage channel; 5. First connecting rod; 6. Connecting plate; 7. Float; 8. Sealing pad; 9. First through hole; 10. Second connecting rod; 11. Limiting block; 12. Second through hole; 13. Connecting ring; 14. Protruding ring; 15. Limiting ring; 16. Mounting block; 17. Lifting column; 18. Sealing sheet; 19. Boss; 20. Connecting frame; 21. Lifting rod; 22. Second drainage channel; 23. Drain pipe; 24. First flange; 25. Second flange; 26. Third flange; 27. Metal ring; 28. Electromagnet; 29. ​​First sealing ring; 30. Second sealing ring; 31. Sealing spring; 32. Third sealing ring; 33. Reaction device. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0029] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Combine the following Figures 1 to 7As shown, an embodiment of the present invention provides a phase-separated solution discharge valve for the production of 4-methylthiazole-5-carboxaldehyde, comprising a straight cylindrical outer shell 1, wherein the inner shell 1 is provided with a straight cylindrical inner shell 2 which is colinear with the axis thereof, wherein a plurality of connecting blocks 3 for connecting the outer shell 1 and the inner shell 2 are provided between the outer shell 1 and the inner shell 2, wherein a first liquid discharge channel 4 is formed between the outer shell 1 and the inner shell 2, wherein the connecting blocks 3 are arranged at intervals to prevent the connecting blocks 3 from being connected together to block the first liquid discharge channel 4 between the outer shell 1 and the inner shell 2, wherein a first connecting rod 5 is slidably connected inside the inner shell 2, wherein a connecting plate 6 is provided at the upper end of the first connecting rod 5, The connecting plate 6 is provided with a float 7 fixedly connected thereto, and the buoyancy of the float 7 is between the two-phase solution, that is, the float 7 will float in the heavy phase solution and sink in the light phase solution. A sealing gasket 8 is provided at the lower end of the connecting plate 6. In the process of discharging the heavy phase solution, the float 7 will drive the connecting plate 6 to gradually descend, and finally the sealing gasket 8 is overlapped at the upper end of the shell 1 to form a seal to prevent the light phase solution from being discharged from the first drainage channel 4. A first through hole 9 is provided in the middle of the first connecting rod 5, and a second connecting rod 10 is slidably connected in the first through hole 9. The upper end of the second connecting rod 10 is provided with A limiting block 11 is provided in the middle of the second connecting rod 10 with a second through hole 12, and a connecting ring 13 is provided at the upper end of the second through hole 12. The connecting ring 13 is arranged at the upper end of the second through hole 12 so that after the heavy phase liquid is discharged, no heavy phase liquid will remain in the second through hole 12, so that the separation effect of the two-phase liquid is better. A convex ring 14 is provided on the inner edge of the connecting ring 13, and a limiting ring 15 is also provided in the middle of the connecting ring 13. A plurality of mounting blocks 16 are arranged between the limiting ring 15 and the connecting ring 13, and the plurality of mounting blocks 16 are also arranged at intervals to avoid the limiting ring 1 5 and the gap between the connecting ring 13 is blocked, the middle part of the limit ring 15 is provided with a lifting column 17 which is slidably matched with the limit ring 15, the top of the lifting column 17 is provided with a sealing sheet 18, the bottom of the inner shell 2 is provided with a boss 19, the upper end of the boss 19 is provided with a mesh connecting frame 20, the upper end of the connecting frame 20 is provided with a lifting rod 21 which cooperates with the lifting column 17, the first connecting rod 5 and the middle part of the boss 19 are provided with a second drainage channel 22 which is connected, the lower end of the inner shell 2 is provided with a drainage pipe 23 fixedly connected with the inner shell 2, one end of the drainage pipe 23 passes through the side wall of the outer shell 1 and extends to the outside.

[0033] Specifically, the lower part of the shell 1 is provided with a first flange 24 for connecting to the reaction equipment and a second flange 25 for connecting to the pipeline, and one end of the drain pipe 23 extending to the outside of the shell 1 is provided with a third flange 26 .

[0034] Before operation, the present invention is connected to the outlet pipe of the reaction device 33 through the first flange 24, a pipeline for discharging the heavy phase solution is connected to the present invention through the second flange 25, and a pipeline for discharging the light phase solution is connected to the present invention through the third flange 26, and the pipeline for discharging the heavy phase solution and the pipeline for discharging the light phase solution are also closed with valves in the prior art. After that, since the float 7 is completely immersed in the heavy phase solution, and the liquid level of the heavy phase solution must be greater than the maximum height that the float 7 and the first connecting rod 5 can rise, therefore, the first connecting rod 5 and the second connecting rod 10 will rise to the highest point driven by the float 7. At this time, the valves on the pipeline for discharging the heavy phase solution and the pipeline for discharging the light phase solution are opened, that is, the lower port of the shell 1 and the drain pipe 23 are opened. At this time, since the lower end of the sealing sheet 18 will overlap the upper end of the convex ring 14, the channel in the middle of the second connecting rod 10 is closed, therefore, the heavy phase solution can only flow out from the first drain channel 4 between the outer shell 1 and the inner shell 2, and be discharged from the lower port of the outer shell 1. As the heavy phase solution is continuously discharged, the first drain pipe 4 is opened. When the liquid level of the heavy phase solution is the same as the height of the float 7, the heavy phase solution is discharged again, which will cause the height of the float 7 to gradually decrease. Until the float 7 drives the connecting plate 6 and the first connecting rod 5 to move to the lowest point, the sealing gasket 8 will overlap the upper end of the shell 1 to close the first drainage channel 4. At this time, the heavy phase solution has almost been discharged. Even if a small amount of heavy phase solution remains, it cannot continue to be discharged from the first drainage channel 4. At this time, the second connecting rod 10 moves downward under the action of gravity and liquid pressure, so that the jacking column 17 conflicts with the lifting rod 21, and the lifting rod 21 lifts the lifting column 17 upward, and the sealing sheet 18 is separated from the convex ring 14, so that the light phase solution can be discharged from the second through hole 12, and enter the interior of the inner shell 2, and finally discharged through the drain pipe 23. Since the height of the residual heavy phase solution is lower than the height of the limit block 11, it cannot be discharged from the second through hole 12. Therefore, the discharged heavy phase solution and the light phase solution can be completely separated in the end, and the trace solution remaining in the reaction device 33 can be discharged through other water outlets later. The present invention effectively improves the separation effect of the heavy phase solution and the light phase solution, avoids affecting the subsequent production, is easy to operate, and has a simple structure.

[0035] Specifically, the float bag 7 is provided with an air nozzle for adjusting the air in the float bag 7 to adjust the density of the float bag 7, so that the present invention can work in two-phase solutions of different densities. In addition, a control air pipe connected to the float bag 7 can be arranged along the side wall of the first connecting column and the connecting plate 6, so that it is convenient to control the size of the air bag from the bottom of the present invention. In this way, the float bag 7 can be inflated after installation, or the air bag can be deflated before disassembly, which is convenient for the disassembly and installation of the present invention.

[0036] Specifically, the lower end of the second connecting rod 10 is provided with a magnetic metal ring 27, and the boss 19 is provided with an electromagnet 28 that cooperates with the metal ring 27. When the heavy phase solution is discharged, the float 7 moves to the lowest point. At this time, the electromagnet 28 can work to absorb the metal ring 27, so that the second connecting rod 10 can be further close to the boss 19, and the resistance force is increased when the lifting column 17 and the lifting rod 21 conflict with each other, thereby opening the second through hole 12. In addition to the above embodiment, the metal ring 27 can also be changed to an electromagnet 28. When the two electromagnets 28 repel each other with the same sex, the second through hole 12 can be closed, and when the two electromagnets 28 attract each other with opposite sex, the second through hole 12 can be opened, which is more convenient to use and more convenient to control the discharge of the light phase solution.

[0037] Specifically, a first sealing ring 29 is provided at the bottom of the groove formed between the boss 19 and the inner shell 2. The first sealing ring 29 is provided to improve the sealing effect between the first connecting rod 5 and the second connecting rod 10 and the boss 19 when they drop to the lowest point.

[0038] Specifically, a second sealing ring 30 is embedded in the upper part of the side wall of the housing 1 to improve the sealing effect between the housing 1 and the water outlet pipe of the reaction device 33 .

[0039] Specifically, a sealing spring 31 for tightening the sealing sheet 18 and the limiting ring 15 is provided between the sealing sheet 18 and the limiting ring 15. When the heavy phase solution is discharged, the sealing sheet 18 is tightened by the sealing spring 31, so as to ensure the sealing between the sealing sheet 18 and the limiting ring 15, and prevent the second through hole 12 from opening suddenly, causing the heavy phase solution to be discharged from the discharge pipe 23.

[0040] Specifically, a third sealing ring 32 is provided at the lower end of the limiting block 11 to improve the sealing effect between the first connecting rod 5 and the second connecting rod 10 .

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A phase separation solution discharge valve for the production of 4-methylthiazole-5-carboxaldehyde, comprising a straight cylindrical housing (1), characterized in that: The outer shell (1) is provided with an inner shell (2) which is colinear with the axis thereof and is in a straight cylindrical shape. A plurality of connecting blocks (3) for connecting the outer shell (1) and the inner shell (2) are provided between the outer shell (1) and the inner shell (2). A first liquid discharge channel (4) is formed between the outer shell (1) and the inner shell (2). A first connecting rod (5) is slidably connected to the inner shell (2). A connecting plate (6) is provided at the upper end of the first connecting rod (5). A floating bag (7) fixedly connected to the connecting plate (6) is provided on the connecting plate (6). A sealing gasket (8) is provided at the lower end of the connecting plate (6). A first through hole (9) is provided in the middle of the first connecting rod (5). A second connecting rod (10) is slidably connected in the first through hole (9). A limiting block (11) is provided at the upper end of the second connecting rod (10). A second through hole (12) is provided in the middle of the second connecting rod (10). A connecting ring (13) is provided at the upper end of the second through hole (12). ), a convex ring (14) is provided on the inner edge of the connecting ring (13), a limiting ring (15) is also provided in the middle of the connecting ring (13), a plurality of mounting blocks (16) are provided between the limiting ring (15) and the connecting ring (13), a lifting column (17) slidably matched with the limiting ring (15) is provided in the middle of the limiting ring (15), a sealing sheet (18) is provided on the top of the lifting column (17), a boss (19) is provided at the bottom of the inner shell (2), a mesh-shaped connecting frame (20) is provided at the upper end of the boss (19), a lifting rod (21) matched with the lifting column (17) is provided at the upper end of the connecting frame (20), a second liquid discharge channel (22) connected to the first connecting rod (5) and the boss (19) is provided in the middle, and a liquid discharge pipe (23) fixedly connected to the inner shell (2) is provided at the lower end of the inner shell (2), one end of the liquid discharge pipe (23) passes through the side wall of the outer shell (1) and extends to the outside.

2. A phase separation solution discharge valve for 4-methylthiazole-5-carboxaldehyde production according to claim 1, characterized in that: The lower part of the shell (1) is provided with a first flange (24) for connecting to the reaction equipment and a second flange (25) for connecting to the pipeline, and the end of the drain pipe (23) extending to the outside of the shell (1) is provided with a third flange (26).

3. The phase separation solution discharge valve for 4-methylthiazole-5-carboxaldehyde production according to claim 1, characterized in that: The floating bag (7) is provided with an air nozzle.

4. The phase-separated solution discharge valve for 4-methylthiazole-5-carboxaldehyde production according to claim 1, characterized in that: A magnetic metal ring (27) is provided at the lower end of the second connecting rod (10), and an electromagnet (28) matching the metal ring (27) is provided on the boss (19).

5. The phase-separated solution discharge valve for 4-methylthiazole-5-carboxaldehyde production according to claim 1, characterized in that: A first sealing ring (29) is provided at the bottom of the groove formed between the boss (19) and the inner shell (2).

6. The phase-separated solution discharge valve for 4-methylthiazole-5-carboxaldehyde production according to claim 1, characterized in that: A second sealing ring (30) is embedded in the upper portion of the side wall of the housing (1).

7. The phase-separated solution discharge valve for 4-methylthiazole-5-carboxaldehyde production according to claim 1, characterized in that: A sealing spring (31) is provided between the sealing sheet (18) and the limiting ring (15) for tensioning the two.

8. The phase-separated solution discharge valve for 4-methylthiazole-5-carboxaldehyde production according to claim 1, characterized in that: A third sealing ring (32) is provided at the lower end of the limiting block (11).

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