Efficient pure acid drying device for hydrogen chloride preparation

Abstract

The utility model relates to the technical field of hydrogen chloride drying, and discloses an efficient pure acid drying device for hydrogen chloride preparation, which comprises a tank body, the surface of the tank body is fixedly connected with a reinforcing assembly, the bottom surface of the reinforcing assembly is fixedly connected with supporting legs, the top end of the tank body is welded with a flange plate, the surface of the flange plate is provided with a groove, and the supporting legs are fixedly connected with the flange plate. A corrosion-resistant assembly is clamped into the groove, a plurality of mounting holes are formed in the top face of the flange plate, and mounting sleeve columns are inserted into the mounting holes. According to the efficient pure acid drying device for hydrogen chloride preparation, through the arrangement of the groove, the corrosion-resistant assembly and the molecular sieve drying agent, the drying efficiency and dryness are improved, and the problems that a graphite material is used as an inorganic acid-resistant lining in a traditional drying device, and a water film is easily formed on the surface of the graphite lining in production; therefore, moisture in the hydrogen chloride gas is difficult to thoroughly remove, the drying effect is influenced, and the drying efficiency and the dryness of hydrogen chloride are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydrogen chloride drying technical field especially relates to hydrogen chloride preparation is with high -efficient pure acid drying device. BACKGROUND

[0002] Hydrogen chloride is widely used in organic synthesis, pharmacy, pesticide and other fields as an important chemical raw material. Especially in the synthesis process of N-cyanoethyl imidate, hydrogen chloride as a key raw material, its purity and drying degree directly affect the quality and production efficiency of the product. Hydrogen chloride gas containing certain moisture is usually prepared by the reaction of phosphorus trichloride and water, and then the moisture in the hydrogen chloride gas is dried.

[0003] The existing hydrogen chloride preparation high -efficient pure acid drying device in actual use, the drying device adopts graphite material as inorganic acid -resistant lining, in the production, graphite lining surface is easy to form water film, lead to hydrogen chloride gas moisture difficult to remove completely, influence drying effect, and graphite material lining once damage, there is replacement process, inconvenient to improve drying efficiency and the convenience of dismounting and installation. UTILITY MODEL CONTENTS

[0004] (I) technical problem solved

[0005] The utility model solves the technical problem that the drying device adopts graphite material as inorganic acid -resistant lining in the background art, which is easy to form a water film on the surface of the graphite lining during production, making it difficult to completely remove the moisture in the hydrogen chloride gas and affecting the drying effect. Moreover, once the graphite material lining is damaged, the replacement process is time-consuming and inconvenient, which affects the drying efficiency and the convenience of dismounting and installation.

[0006] (II) technical scheme

[0007] In order to achieve the above object, the utility model discloses a high -efficient pure acid drying device for hydrogen chloride preparation, including jar body, the surface fixed connection of jar body has reinforcing component, the bottom surface fixed connection of reinforcing component has support leg, the top of jar body is welded with flange plate, the surface of flange plate is opened with recess, the recess is connected with corrosion -resistant component in the inside, the top of flange plate is opened with a plurality of mounting holes, the inside of mounting hole is inserted with the installation sleeve column, the inside of installation sleeve column is provided with a plurality of clamping beads, the bottom wall fixed connection of installation sleeve column has installation component, the surface of installation sleeve column is sleeved with flange tank cover, the inside top wall of flange tank cover is threadedly connected with drying frame, the inside of drying frame is provided with molecular sieve drier, the inner wall of drying frame is opened with cavity, the inside of cavity is provided with heating wire plate, the top of flange tank cover is opened with air inlet and gas outlet, the surface of air inlet is threadedly connected with air inlet component, the surface of gas outlet is threadedly connected with conveying component, the top of flange tank cover is fixedly connected with monitoring component.

[0008] As a further scheme of the utility model, the reinforcing component includes two reinforcing rings fixedly connected to the surface of the jar body, and a plurality of reinforcing ribs are fixedly connected to one end of the reinforcing ring. The reinforcing ribs facilitate reinforcing the jar body.

[0009] As a further scheme of the utility model, the corrosion-resistant component includes a clamping ring clamped in the recess, and a polytetrafluoroethylene lining layer is fixedly connected to the bottom surface of the clamping ring. The polytetrafluoroethylene lining layer has excellent corrosion resistance, high temperature resistance, and low friction coefficient, and can effectively resist the corrosion of hydrogen chloride.

[0010] As a further scheme of the utility model, the installation component includes a return spring fixedly connected to the inner bottom wall of the installation sleeve column, a pressing column fixedly connected to the top surface of the return spring, a thin column fixedly connected to the top surface of the pressing column, and a pressing column fixedly connected to the top surface of the thin column. The pressing column facilitates changing the shape of the return spring.

[0011] As a further scheme of the utility model, a plurality of clamping holes are formed in the edge of the surface of the installation sleeve column, the clamping holes are matched with the clamping beads, and the clamping beads facilitate quick installation.

[0012] As a further scheme of the utility model, the air inlet component includes an air inlet pipe threadedly connected to the surface of the air inlet, and an electromagnetic valve A is fixedly connected to one end of the air inlet pipe. The electromagnetic valve A facilitates opening the air inlet pipe to allow hydrogen chloride gas to enter.

[0013] As a further scheme of the utility model, the conveying component includes a gas outlet pipe threadedly connected to the surface of the gas outlet, and an electromagnetic valve B is fixedly connected to one end of the gas outlet pipe. The electromagnetic valve B facilitates conveying the dried hydrogen chloride out.

[0014] As a further scheme of the utility model, the monitoring assembly comprises a programmable logic controller fixedly connected to the top of the flange tank cover, one side of the programmable logic controller is electrically connected with a pressure sensor and a humidity sensor through power lines respectively, and the humidity sensor is convenient for detecting the humidity of the molecular sieve drier.

[0015] As a further scheme of the utility model, the edge of the top of the flange tank cover is fixedly connected with a gas escape pipe, and the surface of the gas escape pipe is fixedly connected with an electromagnetic valve C, so that the electromagnetic valve C is convenient for opening the gas escape pipe.

[0016] As a further scheme of the utility model, the top of the flange plate is fixedly connected with a sealing gasket, the sealing gasket is made of rubber, and the sealing gasket is convenient for improving the sealing performance.

[0017] (Three) beneficial effects

[0018] The utility model provides hydrogen chloride preparation with high -efficient pure acid drying device possesses following beneficial effect:

[0019] 1、the hydrogen chloride preparation with high -efficient pure acid drying device, through the recess, the corrosion -resistant component and the setting of molecular sieve drier, in use, the snap ring of polytetrafluoroethylene lining layer is snapped in the recess of flange plate, the polytetrafluoroethylene lining layer bottom is placed concentrated sulfuric acid, installs the flange tank cover, opens electromagnetic valve A, lets hydrogen chloride reach concentrated sulfuric acid through the air inlet pipe, and concentrated sulfuric acid absorbs the moisture in hydrogen chloride, lets it dry, and gas rises to the molecular sieve drier, and the residual trace moisture is sucked out, and polytetrafluoroethylene material has excellent corrosion resistance, high temperature resistance and low friction coefficient, can effectively resist the corrosion of hydrogen chloride, reduces the water film formation simultaneously, thereby improves the drying efficiency and dryness, avoids like traditional drying device inside use graphite material as inorganic acid -resistant lining, in production, graphite lining surface is easy to form water film, causes the moisture in hydrogen chloride gas to be difficult to remove completely, influences the drying effect, improves the drying efficiency and the dryness of hydrogen chloride.

[0020] 2. The high-efficiency pure acid drying device for preparing hydrogen chloride is provided with a flange, a flange tank cover, a mounting sleeve, a clamping bead and a mounting assembly. When the polytetrafluoroethylene lining layer is damaged or needs to be cleaned, the concentrated sulfuric acid is first discharged, and then the pressing columns are pressed in sequence to press down the reset spring, the clamping bead is received in the position of the thin column, the mounting sleeve columns are pulled out in sequence, the flange tank cover is removed, the lining is replaced or cleaned, and then a new polytetrafluoroethylene lining layer or a cleaned polytetrafluoroethylene lining layer is clamped in the groove for replacement, and then the flange tank cover and the flange are installed. Similarly, the pressing column is pressed and the mounting sleeve column is inserted into the mounting hole. After that, the pressing column is released, the reset spring rises, the pressing column pushes the clamping bead to the clamping hole, the mounting sleeve column is limited, and the tank body is sealed, thereby achieving the effect of quick installation and disassembly, avoiding the damage of the traditional graphite lining and the need for a lot of time for replacement, and improving the portability and speed of replacement and cleaning.

[0021] 3. The high-efficiency pure acid drying device for preparing hydrogen chloride is configured with a heating wire plate and a monitoring component. When in use, a programmable logic controller sets a humidity threshold, a pressure threshold, and a heating threshold for monitoring. The humidity sensor monitors the humidity of the molecular sieve desiccant. If the humidity reaches the set threshold, the humidity sensor sends a signal to the programmable logic controller, which issues a command to close solenoid valves A and B, then activates the heating wire plate. The heating wire plate heats the drying frame to evaporate moisture from the molecular sieve desiccant, making it reusable. If the gas in the tank reaches the threshold monitored by the pressure sensor, solenoid valve C is opened to discharge the gas. When the gas drops below the monitoring threshold, solenoid valve C is closed. When the molecular sieve desiccant drops below the humidity value, the heating wire plate stops heating, and the programmable logic controller opens solenoid valves A and B to continue drying. This reduces manual intervention and production costs, avoids the need to constantly replace the molecular sieve desiccant, which wastes resources, improves recycling efficiency, and reduces manual intervention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the reinforcement component of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the corrosion-resistant component of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the monitoring component of the utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the air intake assembly and the delivery assembly of the utility model;

[0027] Figure 6 The installation assembly structure schematic view of the utility model.

[0028] In the figure: 1, tank body; 2, reinforcing assembly; 201, reinforcing ring; 202, reinforcing rib; 3, support leg; 4, flange plate; 5, corrosion-resistant assembly; 501, clamping ring; 502, polytetrafluoroethylene lining layer; 6, installation sleeve column; 7, clamping bead; 8, installation assembly; 801, reset spring; 802, pressure column; 803, thin column; 804, pressing column; 9, flange tank cover; 10, drying frame; 11, molecular sieve desiccant; 12, heating wire plate; 13, air inlet assembly; 1301, air inlet pipe; 1302, electromagnetic valve A; 14, conveying assembly; 1401, gas conveying pipe; 1402, electromagnetic valve B; 15, monitoring assembly; 1501, programmable logic controller; 1502, pressure sensor; 1503, humidity sensor; 16, air release pipe; 17, electromagnetic valve C; 18, sealing gasket. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0030] Please refer to Figures 1 to 6The utility model provides a technical scheme: hydrogen chloride preparation uses high -efficient pure acid drying device, including jar body 1, the surface fixed connection of jar body 1 has reinforcing component 2, the bottom surface fixed connection of reinforcing component 2 has support leg 3, the top of jar body 1 is welded with flange plate 4, the surface of flange plate 4 is seted up with recess, recess's inside joint has corrosion -resistant component 5, the top of flange plate 4 is seted up with a plurality of mounting hole, the inside of mounting hole is inserted and is connected with installation sleeve column 6, the inside of installation sleeve column 6 is provided with a plurality of clamping beads 7, the inside bottom wall fixed connection of installation sleeve column 6 has installation component 8, through the setting of flange plate 4, flange jar cover 9, installation sleeve column 6, clamping bead 7 and installation component 8, to reach the effect of quick installation and disassembly, avoid like traditional graphite material lining damage, need a large amount of time to replace, improve the portable nature and rapidity of replacement and cleaning, the surface of installation sleeve column 6 is sleeved with flange jar cover 9, the inside top wall screw connection of flange jar cover 9 has drying frame 10, the inside of drying frame 10 is provided with molecular sieve drier 11, through the setting of recess, corrosion -resistant component 5 and molecular sieve drier 11, to improve drying efficiency and dryness, avoid like traditional drying device inside use graphite material as inorganic acid -resistant lining, in production, graphite lining surface is easy to form water film, lead to hydrogen chloride gas in moisture difficult to remove completely, influence drying effect, improve the drying efficiency and hydrogen chloride dryness, the inner wall of drying frame 10 is seted up with cavity, the inside of cavity is provided with heating wire plate 12, the top of flange jar cover 9 is seted up with air inlet and gas outlet, the surface screw connection of air inlet has air inlet component 13, the surface screw connection of gas outlet has conveying component 14, the top fixed connection of flange jar cover 9 has monitoring component 15, through the setting of heating wire plate 12 and monitoring component 15, to reach reducing manual intervention and reducing production cost, avoid the need to constantly replace molecular sieve drier 11, cause resource waste, improve the regeneration utilization rate and reduce manual intervention;

[0031] Reinforcing component 2 includes two reinforcing rings 201 fixedly connected to the surface of the jar body 1, and a plurality of reinforcing ribs 202 are fixedly connected to one end of the reinforcing ring 201, and the reinforcing component 2 is arranged to reinforce;

[0032] Corrosion-resistant component 5 includes a clamping ring 501 clamped in the recess, and a polytetrafluoroethylene lining layer 502 is fixedly connected to the bottom surface of the clamping ring 501, and the corrosion-resistant component 5 is arranged to resist corrosion and high temperature;

[0033] Installation component 8 includes a return spring 801 fixedly connected to the inner bottom wall of the installation sleeve column 6, a pressing column 802 is fixedly connected to the top surface of the return spring 801, a thin column 803 is fixedly connected to the top surface of the pressing column 802, and a pressing column 804 is fixedly connected to the top surface of the thin column 803, and the installation component 8 is arranged to facilitate quick replacement and installation;

[0034] The edge of the surface of the mounting sleeve column 6 is provided with a plurality of clamping holes matched with clamping beads 7, and the clamping beads 7 are arranged to limit the position;

[0035] The air inlet assembly 13 comprises an air inlet pipe 1301 threadedly connected to the surface of the air inlet, and one end of the air inlet pipe 1301 is fixedly connected with an electromagnetic valve A 1302.

[0036] The conveying assembly 14 comprises a gas conveying pipe 1401 threadedly connected to the surface of the gas inlet, and one end of the gas conveying pipe 1401 is fixedly connected with an electromagnetic valve B 1402.

[0037] The monitoring assembly 15 comprises a programmable logic controller 1501 fixedly connected to the top of the flange tank cover 9, and one side of the programmable logic controller 1501 is electrically connected with a pressure sensor 1502 and a humidity sensor 1503 through power lines.

[0038] The edge of the top of the flange tank cover 9 is fixedly connected with a gas discharge pipe 16, and the surface of the gas discharge pipe 16 is fixedly connected with an electromagnetic valve C 17.

[0039] The top of the flange plate 4 is fixedly connected with a sealing gasket 18, and the sealing gasket 18 is made of rubber.

[0040] In the utility model, the working steps of the device are as follows:

[0041] The first step is that, in use, the clamping ring 501 of the polytetrafluoroethylene lining layer 502 is clamped in the groove of the flange plate 4, the polytetrafluoroethylene lining layer 502 is placed at the bottom of concentrated sulfuric acid, the flange tank cover 9 is installed, the electromagnetic valve A 1302 is opened, the hydrogen chloride is allowed to pass through the air inlet pipe 1301 to reach the concentrated sulfuric acid, the concentrated sulfuric acid absorbs the water in the hydrogen chloride, the hydrogen chloride is dried, the gas rises to the molecular sieve drying agent 11, the residual trace amount of water is absorbed, the polytetrafluoroethylene material has excellent corrosion resistance, high temperature resistance and low friction coefficient, can effectively resist the corrosion of the hydrogen chloride, and reduces the formation of water film;

[0042] Second step: when the polytetrafluoroethylene lining layer 502 is damaged or needs to be cleaned, first discharge concentrated sulfuric acid, then press the pressing column 804, press the reset spring 801 to press down, the clamping bead 7 is received in the position of the thin column 803, the mounting sleeve column 6 is pulled out in sequence, the flange tank cover 9 is taken off, the liner is replaced or cleaned, then the new polytetrafluoroethylene lining layer 502 or the cleaned polytetrafluoroethylene lining layer 502 is clamped in the groove, and the replacement is carried out, then the flange tank cover 9 and the flange plate 4 are installed, and the pressing column 804 is pressed in the same way, the mounting sleeve column 6 is inserted into the mounting hole, then the pressing column 804 is loosened, the reset spring 801 rises, the clamping bead 7 is clamped to the clamping hole by the pressing column 802, the mounting sleeve column 6 is limited, and the tank body 1 is sealed;

[0043] Third step: in use, the programmable logic controller 1501 sets the monitored humidity threshold, pressure threshold and heating threshold, the humidity sensor 1503 monitors the humidity of the molecular sieve desiccant 11, if the humidity reaches the set threshold, the humidity sensor 1503 sends a signal to the programmable logic controller 1501, the programmable logic controller 1501 sends an instruction to close the electromagnetic valve A1302 and the electromagnetic valve B1402, then the heating wire plate 12 is started, the heating wire plate 12 heats the drying frame 10, and the molecular sieve desiccant 11 evaporates water to be used again, if the gas in the tank reaches the threshold monitored by the pressure sensor 1502, the electromagnetic valve C17 is opened, the gas is discharged, the electromagnetic valve C17 is closed when the gas drops below the monitoring threshold, when the molecular sieve desiccant 11 drops below the humidity value, the heating wire plate 12 stops heating, then the programmable logic controller 1501 opens the electromagnetic valve A1302 and the electromagnetic valve B1402, and continues to dry work.

[0044] It should be noted that the device structure and the drawings of the utility model mainly describe the principle of the utility model, and the setting of the power mechanism, the power supply system and the control system of the device is not completely described, and under the premise that the above-mentioned principle of the utility model is understood by the person skilled in the art, the specific power mechanism, power supply system and control system can be clearly known, and the control mode of the application file is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the person skilled in the art;

[0045] The standard parts used can be purchased from the market, and can be ordered according to the description and drawings, and the specific connection mode of each part adopts the conventional bolt, rivet, welding and other conventional means in the prior art, the mechanical parts and equipment adopt the conventional type in the prior art, and the components known by the person skilled in the art, and the structure and principle thereof can be known by the person skilled in the art through technical manual or through conventional experimental method.

[0046] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency pure acid drying device for preparing hydrogen chloride, comprising a tank (1), characterized in that: The surface of the tank body (1) is fixedly connected with a reinforcement component (2), the bottom surface of the reinforcement component (2) is fixedly connected with a support leg (3), the top of the tank body (1) is welded with a flange (4), the surface of the flange (4) is provided with a groove, the interior of the groove is clamped with a corrosion-resistant component (5), the top surface of the flange (4) is provided with a plurality of mounting holes, the interior of the mounting holes is plugged with a mounting sleeve (6), the interior of the mounting sleeve (6) is provided with a plurality of clamping beads (7), the inner bottom wall of the mounting sleeve (6) is fixedly connected with a mounting component (8), the mounting sleeve The surface of (6) is sleeved with a flange tank cover (9), the inner top wall of the flange tank cover (9) is threadedly connected to a drying frame (10), the interior of the drying frame (10) is provided with a molecular sieve desiccant (11), the inner wall of the drying frame (10) is provided with a cavity, the interior of the cavity is provided with a heating wire plate (12), the top surface of the flange tank cover (9) is provided with an air inlet and an air outlet, the surface of the air inlet is threadedly connected to an air inlet component (13), the surface of the air outlet is threadedly connected to a delivery component (14), and the top of the flange tank cover (9) is fixedly connected to a monitoring component (15).

2. The high-efficiency pure acid drying device for preparing hydrogen chloride according to claim 1, characterized in that: The reinforcement assembly (2) comprises two reinforcement rings (201) fixedly connected to the surface of the tank body (1), and one end of the reinforcement ring (201) is fixedly connected to a plurality of reinforcement ribs (202).

3. The high-efficiency pure acid drying device for preparing hydrogen chloride according to claim 1, characterized in that: The corrosion-resistant component (5) comprises a clamping ring (501) clamped in the interior of the groove, and a polytetrafluoroethylene lining layer (502) is fixedly connected to the bottom surface of the clamping ring (501).

4. The high-efficiency pure acid drying device for preparing hydrogen chloride according to claim 1, characterized in that: The mounting assembly (8) comprises a return spring (801) fixedly connected to the inner bottom wall of the mounting sleeve (6); the top surface of the return spring (801) is fixedly connected to a pressure column (802); the top surface of the pressure column (802) is fixedly connected to a thin column (803); and the top surface of the thin column (803) is fixedly connected to a pressing column (804).

5. The high-efficiency pure acid drying device for preparing hydrogen chloride according to claim 1, characterized in that: A plurality of clamping holes are provided on the edge of the surface of the installation sleeve column (6), and the clamping holes are adapted to the clamping beads (7).

6. The high-efficiency pure acid drying device for preparing hydrogen chloride according to claim 1, characterized in that: The air intake assembly (13) comprises an air intake pipe (1301) threadedly connected to the surface of the air intake port, and one end of the air intake pipe (1301) is fixedly connected to a solenoid valve A (1302).

7. The high-efficiency pure acid drying device for preparing hydrogen chloride according to claim 1, characterized in that: The delivery assembly (14) comprises an air delivery pipe (1401) threadedly connected to the surface of the air delivery port, and one end of the air delivery pipe (1401) is fixedly connected to a solenoid valve B (1402).

8. The high-efficiency pure acid drying device for preparing hydrogen chloride according to claim 1, characterized in that: The monitoring assembly (15) includes a programmable logic controller (1501) fixedly connected to the top of the flange tank cover (9), and one side of the programmable logic controller (1501) is electrically connected to a pressure sensor (1502) and a humidity sensor (1503) via power lines.

9. The high-efficiency pure acid drying device for preparing hydrogen chloride according to claim 1, characterized in that: The edge of the top of the flange tank cover (9) is fixedly connected with an air release pipe (16), and the surface of the air release pipe (16) is fixedly connected with an electromagnetic valve C (17).

10. The high-efficiency pure acid drying device for preparing hydrogen chloride according to claim 1, characterized in that: A sealing gasket (18) is fixedly connected to the top of the flange (4), and the sealing gasket (18) is made of rubber.

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