Inert gas replacement device for difenidol hydrochloride production

Abstract

The utility model relates to the technical field of gas replacement, and discloses an inert gas replacement device for difenidol hydrochloride production, which comprises a reaction kettle, the outer surface of the reaction kettle is fixedly connected with a support plate, the top of the support plate is fixedly connected with a driving box, the top of the driving box is fixedly connected with a pressure-resistant gas tank, and the pressure-resistant gas tank is fixedly connected with a gas outlet of the pressure-resistant gas tank. And a sealing cover is arranged at the top of the pressure-resistant gas tank. The device has the following advantages and effects that the space between the pressure-resistant gas tank and the sealing plate is used for storing inert gas, the gas pump is started during replacement, the gas pump enables the gas inlet pipe to suck gas in the pressure-resistant gas tank, the gas amount is reduced, and negative pressure is generated in the device to drive the sealing plate to slide downwards on the inner wall of the pressure-resistant gas tank; by observing the up-down moving position of the sealing plate, the replacement amount of inert gas can be conveniently controlled, when the sealing plate descends to the bottom of the pressure-resistant gas tank, gas can be supplemented into the pressure-resistant gas tank in time, and the influence on the production process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas replacement technical field, especially relate to a kind of inert gas replacement device for hydrochloric acid diphenidol production. BACKGROUND

[0002] Hydrochloric acid diphenidol, foreign name is called, can improve vertebral artery blood supply, adjust vestibular system function, inhibit vomiting center, has anti-dizzy and antiemetic effect The process of production is roughly divided into alkylation reaction, format reaction, salt formation, refining, drying and packaging, reaction kettle needs to be used when raw material is reacted, and inert gas is added in reaction kettle.

[0003] In prior art, Chinese patent publication number CN213408652U discloses inert gas replacement system of small reaction kettle, belongs to chemical equipment technical field. Inert gas replacement system of small reaction kettle, including reaction kettle body, the top of the reaction kettle body is fixedly connected with support frame, the top of the support frame is fixedly connected with vacuum pump, the gas suction end of the vacuum pump is fixedly connected with suction pipe, the end of the suction pipe away from the vacuum pump is fixedly connected on the inner wall of the reaction kettle body, the inner wall top of the reaction kettle body is fixedly connected with connecting pipe, the end of the connecting pipe is fixedly connected with air pressure gauge, the side wall of the connecting pipe is fixedly connected with gas delivery pipe, the gas delivery pipe is fixedly connected with gas delivery valve, the end of the gas delivery valve away from the gas delivery pipe is connected with inert gas tank, the inside of the reaction kettle body is equipped with stirring mechanism;The utility model discloses a vacuum pump and gas delivery pipe can effectively discharge the air in the reaction kettle, so that production is safer.

[0004] But the utility model in actual use, inert gas replacement, it is inconvenient to observe the remaining capacity of inert gas in the tank, so that the amount of addition is difficult to control, when the inert gas in the tank is insufficient, it is inconvenient to supplement in time, it is more inconvenient, and therefore needs improvement. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of inert gas replacement device for hydrochloric acid diphenidol production, with the effect of inert gas replacement amount is easy to control.

[0006] The above technical purpose of the utility model is realized by the following technical scheme: a kind of inert gas replacement device for hydrochloric acid diphenidol production, including reaction kettle, the outer surface of the reaction kettle is fixedly connected with support plate, the top of the support plate is fixedly connected with drive box, the top of the drive box is fixedly connected with pressure gas tank, the top of the pressure gas tank is provided with cover, the inner wall of the pressure gas tank is slidably connected with sealing plate, the inner wall of the drive box is fixedly connected with gas pump, the top of the gas pump is fixedly connected with inlet pipe, one end of the gas pump is provided with outlet pipe.

[0007] By adopting the above technical solution, when in use, the support plate supports the pressure-resistant gas tank, the pressure-resistant gas tank is not easy to break and has a large capacity, and the space between the pressure-resistant gas tank and the sealing plate is used to store inert gas. When replacement is performed, the air pump is started, and the air pump causes the air inlet pipe to suck the gas from the pressure-resistant gas tank. The amount of gas is reduced, and the negative pressure generated inside drives the sealing plate to slide downward on the inner wall of the pressure-resistant gas tank. By observing the position of the sealing plate moving up and down, it is convenient to control the amount of inert gas replacement. When the sealing plate descends to the bottom of the pressure-resistant gas tank, the gas can be replenished in time inside the pressure-resistant gas tank to avoid affecting the production process.

[0008] The present invention is further configured as follows: a replacement nozzle is fixedly connected to the outer surface of the reactor, and the air outlet pipe extends to the interior of the replacement nozzle.

[0009] By adopting the above technical solution, the gas outlet pipe enters the displacement nozzle, so that the inert gas enters the reactor.

[0010] The utility model is further configured as follows: a scale line is fixedly connected to the outer surface of the pressure-resistant gas tank, and the material of the pressure-resistant gas tank is pressure-resistant glass.

[0011] By adopting the above technical solution, the scale line can correspond to the height of the sealing plate being lowered, which is convenient for observation.

[0012] The utility model is further configured as follows: a gas filling pipe is fixedly connected to the bottom of the pressure-resistant gas tank, and a valve is provided on the outer surface of the gas filling pipe.

[0013] By adopting the above technical solution, when the pressure-resistant gas tank needs to be supplemented with gas, the valve is opened to facilitate the intake of gas through the gas filling pipe, and the sealing cover is lifted after the gas is added.

[0014] The present invention is further configured as follows: an exhaust pipe is fixedly connected to the top of the reactor, and a second valve is provided on the outer surface of the exhaust pipe.

[0015] By adopting the above technical solution, the second valve is opened during replacement, and the exhaust pipe is convenient for discharging other gases.

[0016] The present invention is further configured as follows: a sealing ring is fixedly connected to the outer surface of the sealing plate, and a guide rod is fixedly connected to the top of the sealing plate.

[0017] By adopting the above technical solution, the sealing ring increases the airtightness, and the guide rod plays a guiding role when the sealing plate moves up and down.

[0018] The present invention is further configured as follows: an exhaust port is provided on the top of the cover, and a guide sliding hole is provided on the top of the cover.

[0019] Through adoption of the above technical scheme, the guide rod slides on the inner wall of the guide sliding hole, and the air inlet and outlet of the exhaust port are facilitated.

[0020] The utility model discloses further provide as: the outer surface of drive case is equipped with air inlet, the inner wall fixed connection of drive case has motor.

[0021] Through adoption of the above technical scheme, the drive case starts the motor when working.

[0022] The utility model discloses further provide as: the output fixed connection of motor has exhaust fan blade, the bottom of drive case is equipped with air outlet.

[0023] Through adoption of the above technical scheme, the motor drives the exhaust fan blade to rotate, and under the action of the air inlet and the air outlet, the internal air is facilitated to circulate, which is beneficial to the heat dissipation of the air pump.

[0024] The utility model discloses further provide as: the bottom of support plate is equipped with corresponding mouth, the inner wall fixed connection of corresponding mouth has guard net.

[0025] Through adoption of the above technical scheme, the corresponding mouth and the air outlet have the same diameter, and the guard net avoids sundries from entering.

[0026] The utility model discloses beneficial effect is:

[0027] 1, the utility model discloses, through the cooperation setting between reaction kettle, support plate, drive case, pressure tank, cover, sealing plate, air pump, air inlet pipe and air outlet pipe, can make the device when using, when using, support plate supports pressure tank, and pressure tank is not easy to break, and the capacity is relatively large, and the space between pressure tank and sealing plate is used to store inert gas, and when replacing, start air pump, and air pump makes air inlet pipe to suck the gas of pressure tank, and the gas amount reduces the internal negative pressure and drives sealing plate to slide down on the inner wall of pressure tank, by observing the position of the up-and-down movement of sealing plate, thereby convenient control the amount of inert gas replacement, when sealing plate drops with the bottom of pressure tank, can timely supplement the gas in the inside of pressure tank, avoid affecting the production process.

[0028] 2. The utility model, through the cooperation setting between the replacement mouth, the scale line, the gas inlet pipe, the valve, the exhaust pipe, the second valve, the sealing ring, the guide rod, the exhaust port, the guide sliding hole, the air inlet, the motor, the exhaust fan blade, the exhaust port, the corresponding mouth and the protective net, can make the device when using, the scale line is convenient for corresponding the height of sealing plate drop, is favorable to observation, when the pressure gas tank needs to supplement gas, opens the valve, is convenient for the gas inlet pipe to take in gas, after the gas is added, the cover is lifted, opens the second valve when replacing, the exhaust pipe is convenient for discharging other gas, the sealing ring increases the airtightness, the guide rod plays the effect of guiding when the sealing plate moves up and down, the guide rod slides in the inner wall of the guide sliding hole, the exhaust port is convenient for the air between the cover and the sealing plate to enter and discharge, the motor drives the exhaust fan blade to rotate, under the effect of the air inlet and the exhaust port, it is convenient for the internal air to circulate, and it is favorable to the heat dissipation of the air pump. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will briefly introduce the drawing needed to be used in the embodiment description, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creative labor, other drawings can also be obtained according to these drawings.

[0030] Figure 1 It is the structural schematic diagram of the utility model;

[0031] Figure 2 It is the utility model Figure 1 The enlarged structural schematic diagram of A in the utility model;

[0032] Figure 3 It is the structural schematic diagram of the pressure-resistant gas tank of the utility model;

[0033] Figure 4 It is the utility model Figure 2 The enlarged structural schematic diagram of B in the utility model.

[0034] In the drawing, 1, reaction kettle;2, support plate;3, drive box;4, pressure-resistant gas tank;5, cover;6, sealing plate;7, air pump;8, gas inlet pipe;9, gas outlet pipe;10, replacement mouth;11, scale line;12, gas inlet pipe;13, valve;14, exhaust pipe;15, second valve;16, sealing ring;17, guide rod;18, exhaust port;19, guide sliding hole;20, air inlet;21, motor;22, exhaust fan blade;23, exhaust port;24, corresponding mouth;25, protective net. DETAILED DESCRIPTION

[0035] The technical solutions of the utility model will be described clearly and completely in connection with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without making creative labor belong to the protection scope of the utility model.

[0036] With reference to Figures 1-4The utility model provides a kind of inert gas replacement device for hydrodiphenhydramine production, including reaction kettle 1, the outer surface of reaction kettle 1 is fixedly connected with support plate 2, the top of support plate 2 is fixedly connected with drive box 3, the top of drive box 3 is fixedly connected with pressure gas tank 4, the top of pressure gas tank 4 is provided with cover 5, the inner wall of pressure gas tank 4 is slidably connected with sealing plate 6, the inner wall of drive box 3 is fixedly connected with gas pump 7, the top of gas pump 7 is fixedly connected with air inlet pipe 8, one end of gas pump 7 is provided with air outlet pipe 9, when using, support plate 2 supports pressure gas tank 4, pressure gas tank 4 is not easy to break, capacity is larger, the space between pressure gas tank 4 and sealing plate 6 is used to store inert gas, when replacement, start gas pump 7, gas pump 7 makes air inlet pipe 8 suck the gas of pressure gas tank 4, gas volume reduces internal negative pressure and drives sealing plate 6 to slide down on the inner wall of pressure gas tank 4, by observing the position of sealing plate 6 up and down movement, to facilitate the amount of inert gas replacement is controlled, when sealing plate 6 drops with the bottom of pressure gas tank 4, can timely supplement gas in the inside of pressure gas tank 4, avoid affecting production process, the outer surface of reaction kettle 1 is fixedly connected with replacement nozzle 10, air outlet pipe 9 extends to the inside of replacement nozzle 10, air outlet pipe 9 enters replacement nozzle 10, so that inert gas enters reaction kettle 1, the outer surface of pressure gas tank 4 is fixedly connected with scale line 11, the material of pressure gas tank 4 is pressure glass, scale line 11 is convenient to correspond the height of sealing plate 6 drop, is conducive to observation, the bottom of pressure gas tank 4 is fixedly connected with gas inlet pipe 12, the outer surface of gas inlet pipe 12 is provided with valve 13, when pressure gas tank 4 needs to supplement gas, open valve 13, to facilitate the gas inlet of gas inlet pipe 12, after gas is added, cover 5 is lifted, the top of reaction kettle 1 is fixedly connected with exhaust pipe 14, the outer surface of exhaust pipe 14 is provided with second valve 15, when replacement, open second valve 15, exhaust pipe 14 is convenient to discharge other gas, the outer surface of sealing plate 6 is fixedly connected with sealing ring 16, the top of sealing plate 6 is fixedly connected with guide rod 17, sealing ring 16 increases airtightness, guide rod 17 plays the effect of guiding when sealing plate 6 moves up and down, the top of cover 5 is provided with exhaust port 18, the top of cover 5 is provided with guide sliding hole 19, guide rod 17 slides in the inner wall of guide sliding hole 19, exhaust port 18 is convenient for air to enter and discharge between cover 5 and sealing plate 6, the outer surface of drive box 3 is provided with air inlet 20, the inner wall of drive box 3 is fixedly connected with motor 21, when drive box 3 works, start motor 21, the output of motor 21 is fixedly connected with exhaust fan blade 22, the bottom of drive box 3 is provided with air outlet 23, motor 21 drives exhaust fan blade 22 to rotate, under the action of air inlet 20 and air outlet 23, it is convenient for internal air to circulate, it is conducive to the heat dissipation of gas pump 7, the bottom of support plate 2 is provided with corresponding port 24, the inner wall of corresponding port 24 is fixedly connected with protective net 25, corresponding port 24 and air outlet 23 are same in diameter, protective net 25 avoids sundries to enter.

[0037] The utility model discloses a reaction kettle 1, support plate 2, drive case 3, pressure gas tank 4, cover 5, sealing plate 6, air pump 7, air inlet pipe 8 and the cooperation setting between air outlet pipe 9, can make the device when using, when using, support plate 2 supports pressure gas tank 4, and pressure gas tank 4 is not easy to break, and the capacity is bigger, and the space between pressure gas tank 4 and sealing plate 6 is used to store inert gas, and when replacing, start air pump 7, and air pump 7 makes air inlet pipe 8 suction pressure gas tank 4's gas, and the gas volume reduces the internal negative pressure and drives sealing plate 6 to slide down in the inner wall of pressure gas tank 4, through the position of the observation sealing plate 6 moves up and down, thereby convenient control inert gas replacement's amount, when sealing plate 6 drops with the bottom of pressure gas tank 4, can timely supplement gas in the inside of pressure gas tank 4, avoid the influence production process, through the cooperation setting between replacement mouth 10, scale line 11, gas inlet pipe 12, valve 13, exhaust pipe 14, second valve 15, sealing ring 16, guide rod 17, exhaust port 18, guide sliding hole 19, air inlet 20, motor 21, exhaust fan blade 22, air outlet 23, corresponding mouth 24 and protective net 25, can make the device when using, air outlet pipe 9 enters replacement mouth 10, and thus inert gas enters reaction kettle 1, and scale line 11 is convenient to the height of corresponding sealing plate 6 drop, is favorable to observation, and when pressure gas tank 4 needs to supplement gas, will open valve 13, and it is convenient for gas inlet pipe 12 to enter, and after gas is added, will cover 5 lift, and when replacing, will open second valve 15, and exhaust pipe 14 is convenient to discharge other gas, and sealing ring 16 increases the airtightness, and guide rod 17 plays the effect of guiding when sealing plate 6 moves up and down, and guide rod 17 slides in the inner wall of guide sliding hole 19, and exhaust port 18 is convenient for the air between cover 5 and sealing plate 6 to enter and discharge, and drive case 3 is working, and starts motor 21, and motor 21 drives exhaust fan blade 22 to rotate, and under the action of air inlet 20 and air outlet 23, it is convenient for internal air to circulate, and it is favorable to the heat dissipation of air pump 7, and corresponding mouth 24 and air outlet 23 are same in diameter, and protective net 25 avoids sundries to enter.

[0038] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An inert gas replacement device for the production of diphenhydramine hydrochloride, comprising a reactor (1), characterized in that: The outer surface of the reactor (1) is fixedly connected to a support plate (2), the top of the support plate (2) is fixedly connected to a drive box (3), the top of the drive box (3) is fixedly connected to a pressure-resistant gas tank (4), the top of the pressure-resistant gas tank (4) is provided with a sealing cover (5), the inner wall of the pressure-resistant gas tank (4) is slidably connected to a sealing plate (6), the inner wall of the drive box (3) is fixedly connected to an air pump (7), the top of the air pump (7) is fixedly connected to an air inlet pipe (8), and one end of the air pump (7) is provided with an air outlet pipe (9).

2. The inert gas replacement device for the production of diphenhydramine hydrochloride according to claim 1, characterized in that: A displacement nozzle (10) is fixedly connected to the outer surface of the reactor (1), and the air outlet pipe (9) extends to the interior of the displacement nozzle (10).

3. The inert gas replacement device for the production of diphenhydramine hydrochloride according to claim 1, characterized in that: A scale line (11) is fixedly connected to the outer surface of the pressure-resistant gas tank (4), and the material of the pressure-resistant gas tank (4) is pressure-resistant glass.

4. The inert gas replacement device for the production of diphenhydramine hydrochloride according to claim 1, characterized in that: The bottom of the pressure-resistant gas tank (4) is fixedly connected to a gas filling pipe (12), and a valve (13) is provided on the outer surface of the gas filling pipe (12).

5. The inert gas replacement device for the production of diphenhydramine hydrochloride according to claim 1, characterized in that: An exhaust pipe (14) is fixedly connected to the top of the reactor (1), and a second valve (15) is provided on the outer surface of the exhaust pipe (14).

6. The inert gas replacement device for the production of diphenhydramine hydrochloride according to claim 1, characterized in that: A sealing ring (16) is fixedly connected to the outer surface of the sealing plate (6), and a guide rod (17) is fixedly connected to the top of the sealing plate (6).

7. The inert gas replacement device for the production of diphenhydramine hydrochloride according to claim 1, characterized in that: An exhaust port (18) is provided on the top of the cover (5), and a guide sliding hole (19) is provided on the top of the cover (5).

8. The inert gas replacement device for the production of diphenhydramine hydrochloride according to claim 5, characterized in that: An air inlet (20) is provided on the outer surface of the drive box (3), and a motor (21) is fixedly connected to the inner wall of the drive box (3).

9. The inert gas replacement device for the production of diphenhydramine hydrochloride according to claim 8, characterized in that: An exhaust fan blade (22) is fixedly connected to the output end of the motor (21), and an exhaust port (23) is provided at the bottom of the drive box (3).

10. The inert gas replacement device for the production of diphenhydramine hydrochloride according to claim 1, characterized in that: A corresponding opening (24) is provided at the bottom of the support plate (2), and a protective net (25) is fixedly connected to the inner wall of the corresponding opening (24).

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