Nitrogen protection device for reaction kettle

Abstract

The utility model discloses a nitrogen protection device for a reaction kettle, belongs to the technical field of reaction kettle protection, and is used for solving the problems that an existing nitrogen protection device cannot filter nitrogen impurities, so that chemical reaction is affected, equipment is damaged and potential safety hazards exist. A gas conveying pipe is fixedly installed at the output end of the nitrogen cylinder, a filtering assembly is fixedly installed at the output end of the gas conveying pipe, an exhaust hose is fixedly installed at the output end of the filtering assembly, the output end of the exhaust hose is connected to the gas inlet end of the reaction kettle, and a driving assembly is installed between the gas conveying pipe and the filtering assembly; the installation box is fixedly installed at the output end of the gas conveying pipe. Nitrogen is filtered through the filtering assembly, smooth chemical reaction is guaranteed, equipment damage is reduced, the filtering net is automatically cleaned through the driving assembly, and the filtering effect and the working efficiency are improved.

Description

Technical Field

[0001] This application relates to the field of reactor protection technology, and in particular to a nitrogen protection device for reactors. Background Technology

[0002] With the continuous development of society and the continuous progress of industries such as chemical and pharmaceutical manufacturing, reaction vessels, as key reaction equipment, play a vital role in many production processes. In many chemical reactions, in order to prevent reactants from being oxidized and to avoid impurities from being mixed into the reaction system, it is often necessary to carry out the reaction in a nitrogen-protected environment. Nitrogen can remove oxygen from the reaction vessel, creating a relatively stable oxygen-free environment for the reaction, ensuring that the chemical reaction proceeds in the expected direction, and improving the purity and quality of the reaction products.

[0003] However, existing nitrogen protection devices lack the function of filtering nitrogen impurities during actual use. Dust, particles, and other impurities contained in the nitrogen can enter the reactor along with the nitrogen. These impurities may have adverse effects on the chemical reaction, such as changing the reaction rate and selectivity, reducing the quality of the reaction products, and adhering to the inner wall of the reactor, agitators, and other equipment, accelerating the wear and corrosion of the equipment, shortening the service life of the equipment, increasing the production costs of enterprises, and the presence of impurities may also cause safety hazards. In some reaction systems that are sensitive to impurities, it may even lead to runaway reaction and cause safety accidents. Summary of the Invention

[0004] The purpose of this application is to solve the problem that existing nitrogen protection devices cannot filter nitrogen impurities, which leads to the impact on chemical reactions, damage to equipment, and safety hazards.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a nitrogen protection device for a reaction vessel, comprising a base plate, a nitrogen cylinder fixedly installed on the top of the base plate, a gas supply pipe fixedly installed at the output end of the nitrogen cylinder, a filter assembly fixedly installed at the output end of the gas supply pipe, an exhaust hose fixedly installed at the output end of the filter assembly, the output end of the exhaust hose being connected to the gas inlet of the reaction vessel, and a drive assembly installed between the gas supply pipe and the filter assembly;

[0006] The filter assembly includes a mounting box, a mounting bracket, and a filter screen. The mounting box is fixedly installed at the output end of the gas supply pipe, the mounting bracket is movably installed inside the mounting box, the filter screen is fixedly installed inside the mounting bracket, and the exhaust hose is fixedly installed at the output end of the mounting box.

[0007] The drive assembly includes a second drive shaft and cams. The second drive shaft is movably mounted inside the mounting box. Two cams are fixedly connected to the outer wall of the second drive shaft, and the cams are in contact with the outer wall of the filter screen.

[0008] As a preferred embodiment, the drive assembly further includes a sealing cover, a blade, a first drive shaft, a first pulley, a second pulley, and a drive belt. The sealing cover is fixedly connected to the outer wall of the gas supply pipe and communicates with the gas supply pipe. The blade is movably installed inside the sealing cover. The first drive shaft is fixedly connected to the top of the blade and passes through the top of the sealing cover. The first pulley is fixedly connected to the top of the second drive shaft, and the second pulley is fixedly connected to the top of the first drive shaft. A drive belt is fitted onto the outer walls of the first and second pulleys.

[0009] As another preferred embodiment, the drive assembly further includes a slide groove, ear plates, a slide rod, and springs. The inner wall of the mounting box has four slide grooves, and the outer wall of the mounting frame is fixedly connected to four ear plates. The ear plates are located inside the slide grooves, and a slide rod is fixedly installed inside the slide grooves. The ear plates are movably sleeved on the outer wall of the slide rods. There are two springs, which are sleeved on the outer wall of the slide rods and fixedly installed between the slide grooves and the slide rods.

[0010] Further preferably, the bottom of the filter assembly has a slot, and a sealing plate is bolted inside the slot.

[0011] Further preferably, the output end of the nitrogen cylinder is fixedly connected to the input end of the drive assembly with an air inlet hose.

[0012] In a further preferred embodiment, a plurality of support rods are fixedly connected to the top of the base plate, and the filter assembly, the air supply pipe and the drive assembly are sequentially fixedly connected to the top of the support rods.

[0013] More preferably, a support ring is fixedly connected to the top of the base plate, and the nitrogen cylinder is fixedly installed inside the support ring.

[0014] Further preferably, the bottom of the base plate is fixedly connected to a plurality of casters, and the top of the base plate is fixedly connected to a push rod.

[0015] Compared with the prior art, the beneficial effects of this application are as follows:

[0016] (1) By setting up a filter assembly, when nitrogen enters the installation box from the gas supply pipe, it will pass through the filter screen. Impurities in the nitrogen are intercepted on the filter screen. The filtered nitrogen then enters the reactor through the exhaust hose, thus achieving the function of filtering nitrogen. The benefits are that it effectively removes impurities in nitrogen, ensures the smooth progress of chemical reactions, improves the quality of reaction products, reduces the damage of impurities to the reactor equipment, and extends the service life of the equipment.

[0017] (2) By setting up a drive assembly, when nitrogen enters the sealing cover from the gas supply pipe, the flow of nitrogen will drive the blade to rotate. The blade will drive the drive shaft to rotate. The pulley at the top of the drive shaft will drive the pulley to rotate through the drive belt, thereby causing the drive shaft to rotate. The cam on the drive shaft will rotate accordingly. When the cam rotates, it will squeeze the filter screen, causing the mounting bracket to slide on the slide rod and compress the spring. When the cam leaves, the spring will return to its original position, and the mounting bracket will slide in the opposite direction, thus cleaning the filter screen. It can automatically clean the impurities on the filter screen, maintain the filtration effect of the filter screen, ensure that nitrogen is continuously and effectively filtered, reduce the frequency of manual cleaning, and improve work efficiency. Attached Figure Description

[0018] Figure 1 This is a first-view structural schematic diagram of a nitrogen protection device for a reactor.

[0019] Figure 2 This is a second-view structural schematic diagram of a nitrogen protection device for a reactor;

[0020] Figure 3 This is an enlarged structural schematic diagram of some parts in a nitrogen protection device for a reactor;

[0021] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0022] Figure 5 for Figure 3 Enlarged structural diagram at point B.

[0023] In the diagram: 1. Base plate; 101. Support ring; 2. Nitrogen cylinder; 3. Gas supply pipe; 4. Filter assembly; 401. Mounting box; 402. Mounting bracket; 403. Filter screen; 5. Drive assembly; 501. Sealing cover; 502. Paddle blade; 503. Drive shaft one; 504. Drive shaft two; 505. Cam; 506. Pulley one; 507. Pulley two; 508. Drive belt; 509. Slide groove; 510. Ear plate; 511. Slide rod; 512. Spring; 6. Exhaust hose; 7. Slot; 8. Sealing plate; 9. Intake hose; 10. Support rod; 11. Caster wheel; 12. Push rod. Detailed Implementation

[0024] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0026] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0027] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0028] like Figure 1-5The nitrogen protection device for a reactor shown includes a base plate 1, a nitrogen cylinder 2 fixedly mounted on the top of the base plate 1, a gas delivery pipe 3 fixedly mounted on the output end of the nitrogen cylinder 2, the gas delivery pipe 3 being responsible for delivering nitrogen from the nitrogen cylinder 2 to a filter assembly 4, the filter assembly 4 being fixedly mounted on the output end of the gas delivery pipe 3, the filter assembly 4 being used to filter impurities in the nitrogen to ensure the purity of the nitrogen entering the reactor, an exhaust hose 6 fixedly mounted on the output end of the filter assembly 4, the exhaust hose 6 delivering the filtered nitrogen to the reactor, the output end of the exhaust hose 6 being connected to the gas inlet of the reactor, a drive assembly 5 being installed between the gas delivery pipe 3 and the filter assembly 4, the drive assembly 5 using the power of the nitrogen gas flow to clean the filter screen 403; the filter assembly 4 includes a mounting box 401 and a mounting bracket 402. The filter screen 403 and the mounting box 401 are fixedly installed at the output end of the gas supply pipe 3. The mounting bracket 402 is movably installed inside the mounting box 401. The mounting bracket 402 can move inside the mounting box 401 to facilitate movement when cleaning the filter screen 403. The filter screen 403 is fixedly installed inside the mounting bracket 402. The filter screen 403 is the core component for filtering nitrogen impurities. The exhaust hose 6 is fixedly installed at the output end of the mounting box 401. The drive assembly 5 includes a second drive shaft 504 and a cam 505. The second drive shaft 504 is movably installed inside the mounting box 401. Two cams 505 are fixedly connected to the outer wall of the second drive shaft 504. When the cams 505 rotate, they squeeze the filter screen 403 to clean the filter screen 403. The cams 505 are in contact with the outer wall of the filter screen 403.

[0029] The drive assembly 5 also includes a sealing cover 501, a blade 502, a drive shaft 503, a pulley 506, a pulley 507, and a drive belt 508. The sealing cover 501 is fixedly connected to the outer wall of the gas supply pipe 3 and is in communication with the gas supply pipe 3. The sealing cover 501 provides a sealed space for the blade 502, allowing the nitrogen gas flow to effectively drive the blade 502. The blade 502 is movably installed inside the sealing cover 501 and rotates under the action of the nitrogen gas flow. The drive shaft 503 is fixedly connected to the outer wall of the gas supply pipe 3. The top of the blade 502 extends through the top of the sealing cover 501. Drive shaft 1 503 transmits the rotational motion of blade 502. Belt pulley 1 506 is fixedly connected to the top of drive shaft 2 504, and belt pulley 2 507 is fixedly connected to the top of drive shaft 1 503. Drive belt 508 is sleeved on the outer wall of belt pulley 1 506 and belt pulley 2 507. Belt pulley 1 506, belt pulley 2 507 and drive belt 508 form a transmission structure that transmits the rotation of drive shaft 1 503 to drive shaft 2 504.

[0030] The drive assembly 5 also includes a slide groove 509, an ear plate 510, a slide rod 511, and a spring 512. The inner wall of the mounting box 401 has four slide grooves 509, which provide tracks for the sliding of the ear plates 510 and limit the movement direction of the mounting frame 402. Four ear plates 510 are fixedly connected to the outer wall of the mounting frame 402. The ear plates 510 connect the mounting frame 402 and the slide rod 511, allowing the mounting frame 402 to slide on the slide rod 511. The ear plates 510 are located inside the slide grooves 509. A slide rod 511 is fixedly installed on the mounting bracket 402. The slide rod 511 provides support and guidance for the ear plate 510, ensuring that the mounting bracket 402 slides smoothly. The ear plate 510 is movably sleeved on the outer wall of the slide rod 511. There are two springs 512, which are sleeved on the outer wall of the slide rod 511. The springs 512 are fixedly installed between the slide groove 509 and the slide rod 511. The springs 512 are compressed when the cam 505 squeezes the filter screen 403, and reset after the cam 505 leaves. This helps the mounting bracket 402 slide back and forth to clean the filter screen 403.

[0031] The bottom of the filter assembly 4 has a slot 7, which is used to discharge the cleaned impurities. A sealing plate 8 is installed inside the slot 7 by bolts. The sealing plate 8 ensures the sealing of the installation box 401 during normal filtration and can be opened when it is necessary to clean impurities.

[0032] The output end of the nitrogen cylinder 2 is fixedly connected to the input end of the drive assembly 5 by an air inlet hose 9, which introduces nitrogen into the sealing cover 501 of the drive assembly 5.

[0033] Multiple support rods 10 are fixedly connected to the top of the base plate 1. The support rods 10 are used to support the filter assembly 4, the air supply pipe 3 and the drive assembly 5, so that these components are kept at a suitable height. The filter assembly 4, the air supply pipe 3 and the drive assembly 5 are fixedly connected to the top of the support rods 10 in sequence.

[0034] A support ring 101 is fixedly connected to the top of the base plate 1. The support ring 101 positions and supports the nitrogen cylinder 2, ensuring the stability of the nitrogen cylinder 2. The nitrogen cylinder 2 is fixedly installed inside the support ring 101.

[0035] The bottom of the base plate 1 is fixedly connected with multiple casters 11, which facilitate the movement of the entire device and improve its flexibility. The top of the base plate 1 is fixedly connected with a push rod 12, which allows the operator to push the device and move it in conjunction with the casters 11.

[0036] Working principle: When in use, open the nitrogen cylinder 2, and nitrogen enters the sealing cover 501 through the gas supply pipe 3. Inside the sealing cover 501, the flow of nitrogen drives the blade 502 to rotate. The blade 502 drives the drive shaft 503 to rotate. The pulley 507 at the top of the drive shaft 503 drives the pulley 506 to rotate through the drive belt 508, which in turn causes the drive shaft 504 to rotate. The cam 505 on the drive shaft 504 rotates accordingly.

[0037] Meanwhile, after nitrogen enters the installation box 401 from the gas supply pipe 3, it is filtered by the filter screen 403. Impurities in the nitrogen are intercepted on the filter screen 403, and the filtered nitrogen enters the reaction vessel through the exhaust hose 6.

[0038] As the cam 505 rotates, it squeezes the filter screen 403, causing the ear plate 510 on the mounting bracket 402 to slide on the slide rod 511 and compress the spring 512. The mounting bracket 402 drives the filter screen 403 to move. When the cam 505 leaves, the spring 512 returns to its original position, and the mounting bracket 402 slides in the opposite direction, thereby cleaning the filter screen 403. The cleaned-off impurities will accumulate at the bottom of the mounting box 401. When it is necessary to clean the impurities, the sealing plate 8 is opened, and the impurities can be discharged from the slot 7.

[0039] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A nitrogen protection device for a reaction vessel, comprising a base plate (1), wherein a nitrogen cylinder (2) is fixedly mounted on the top of the base plate (1), characterized in that: A gas delivery pipe (3) is fixedly installed at the output end of the nitrogen cylinder (2), a filter assembly (4) is fixedly installed at the output end of the gas delivery pipe (3), an exhaust hose (6) is fixedly installed at the output end of the filter assembly (4), the output end of the exhaust hose (6) is connected to the gas inlet of the reactor, and a drive assembly (5) is installed between the gas delivery pipe (3) and the filter assembly (4). The filter assembly (4) includes a mounting box (401), a mounting bracket (402), and a filter screen (403). The mounting box (401) is fixedly installed at the output end of the gas supply pipe (3). The mounting bracket (402) is movably installed inside the mounting box (401). The filter screen (403) is fixedly installed inside the mounting bracket (402). The exhaust hose (6) is fixedly installed at the output end of the mounting box (401). The drive assembly (5) includes a second drive shaft (504) and a cam (505). The second drive shaft (504) is movably installed inside the mounting box (401). Two cams (505) are fixedly connected to the outer wall of the second drive shaft (504). The cams (505) are in contact with the outer wall of the filter screen (403).

2. The nitrogen protection device for a reaction vessel as described in claim 1, characterized in that: The drive assembly (5) further includes a sealing cover (501), a blade (502), a drive shaft (503), a pulley (506), a pulley (507), and a drive belt (508). The sealing cover (501) is fixedly connected to the outer wall of the air supply pipe (3) and is in communication with the air supply pipe (3). The blade (502) is movably installed inside the sealing cover (501). The drive shaft (503) is fixedly connected to the top of the blade (502) and passes through the top of the sealing cover (501). The pulley (506) is fixedly connected to the top of the drive shaft (504). The pulley (507) is fixedly connected to the top of the drive shaft (503). The drive belt (508) is sleeved on the outer walls of the pulley (506) and the pulley (507).

3. A nitrogen protection device for a reaction vessel as described in claim 1, characterized in that: The drive assembly (5) further includes a slide groove (509), an ear plate (510), a slide rod (511), and a spring (512). The inner wall of the mounting box (401) is provided with four slide grooves (509). The outer wall of the mounting bracket (402) is fixedly connected with four ear plates (510). The ear plates (510) are located inside the slide grooves (509). The slide rod (511) is fixedly installed inside the slide grooves (509). The ear plates (510) are movably sleeved on the outer wall of the slide rod (511). There are two springs (512). The springs (512) are sleeved on the outer wall of the slide rod (511). The springs (512) are fixedly installed between the slide grooves (509) and the slide rod (511).

4. A nitrogen protection device for a reaction vessel as described in claim 1, characterized in that: The bottom of the filter assembly (4) is provided with a slot (7), and a sealing plate (8) is bolted inside the slot (7).

5. A nitrogen protection device for a reaction vessel as described in claim 1, characterized in that: The output end of the nitrogen cylinder (2) is fixedly connected to the input end of the drive assembly (5) with an air inlet hose (9).

6. A nitrogen protection device for a reaction vessel as described in claim 1, characterized in that: The top of the base plate (1) is fixedly connected to multiple support rods (10), and the filter assembly (4), air supply pipe (3) and drive assembly (5) are fixedly connected to the top of the support rods (10) in sequence.

7. A nitrogen protection device for a reaction vessel as described in claim 1, characterized in that: A support ring (101) is fixedly connected to the top of the base plate (1), and the nitrogen cylinder (2) is fixedly installed inside the support ring (101).

8. A nitrogen protection device for a reaction vessel as described in claim 1, characterized in that: The bottom of the base plate (1) is fixedly connected with a plurality of casters (11), and the top of the base plate (1) is fixedly connected with a push rod (12).

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