Chemical safety feeding device

Abstract

The utility model provides a chemical safety feeding device, and relates to the technical field of chemical safety, the chemical safety feeding device comprises a liquid conveying pipe for chemical liquid to enter a tank reactor, a gas conveying pipe penetrating through the liquid conveying pipe and extending to a liquid outlet end to be flush with a port of the gas conveying pipe, a cavity formed by an outer ring of the gas conveying pipe and an inner ring of the liquid conveying pipe and used for the liquid to pass through, and a threaded part, the opening is formed in the outer ring of the gas conveying pipe, extends towards the liquid outlet end in a threaded mode, penetrates through the gas conveying pipe, is located in a threaded covering area of the threaded part and allows inert gas to penetrate through. Through the arrangement of the gas conveying pipe combined with the liquid conveying pipe, in the process of utilizing the pressure during liquid input, experimental liquid is intermittently pushed and injected, and the liquid is uniformly spread to most positions in the kettle type reactor in the rotating process, so that the effect of promoting reaction is achieved, and the reaction time is shortened.

Description

Technical Field

[0001] This utility model relates to the field of chemical safety technology, and more specifically, to a chemical safety feeding device. Background Technology

[0002] In the chemical production field, safe feeding devices are core equipment for ensuring the controllability of reaction processes. Traditional feeding systems use automated valve groups and weighing modules to quantitatively add solid or liquid raw materials, and are equipped with sealed delivery pipelines and explosion-proof components to reduce the risk of leakage. With the increasing demands for process refinement, modern devices have integrated PLC control systems, which can preset multiple feeding programs and monitor flow and temperature parameters in real time, significantly improving feeding accuracy and operational safety, and are particularly suitable for pilot-scale and large-scale production scenarios of high-risk chemicals.

[0003] However, existing technologies still face bottlenecks in ensuring the uniformity of liquid feedstock distribution. Due to differences in liquid viscosity and pipeline residue effects, flow fluctuations are prone to occur during multi-channel distribution, leading to imbalances in the material ratios of each reaction unit. To compensate for this deficiency, companies often need to add static mixers or circulating agitators, which increases equipment investment and energy consumption, and may also affect the stability of sensitive materials due to localized over-shearing. This passive compensation mode of distribution-mixing has become a key technical obstacle restricting the efficiency and product consistency of continuous production processes.

[0004] Therefore, we have made improvements to this and proposed a chemical safety feeding device. Utility Model Content

[0005] In order to achieve the above-mentioned objectives, this utility model provides a chemical safety feeding device to improve the above-mentioned problems.

[0006] The application is as follows:

[0007] include:

[0008] Infusion tubing supplies chemical liquids into the batch reactor;

[0009] The gas delivery tube passes through the infusion tube and extends to the outlet end, flush with the gas delivery tube port. The outer ring of the gas delivery tube and the inner ring of the infusion tube form a cavity for liquid to pass through, and has the following characteristics:

[0010] The threaded portion is provided on the outer ring of the gas transmission pipe, extending towards the liquid outlet end;

[0011] An opening extends through the gas supply pipe and is located in the threaded area covered by the threaded portion, allowing inert gas to pass through;

[0012] A spring is provided at the end of the threaded portion;

[0013] A threaded sleeve, threadedly connected to the threaded portion and covering at least half of the opening of the insertion path, in elastic contact with a spring, and further comprising:

[0014] An arc-shaped groove is formed on the outer ring of the threaded sleeve. Driven by liquid pressure, the threaded sleeve rotates circumferentially and exposes more of the penetration area.

[0015] A horizontal plate is installed on the threaded sleeve. When the threaded sleeve rotates, the liquid is subjected to circumferential thrust and output from the liquid outlet in a parabolic direction.

[0016] Preferred options also include:

[0017] A recessed ring, located on the inner ring of the infusion tube, includes a recess and faces the outlet end;

[0018] A blocking ring, located on the threaded sleeve and extending to the recessed ring, inhibits the flow of liquid to the outlet.

[0019] Preferred options also include:

[0020] A flow guide slope is provided at the inclined end of the horizontal plate towards the liquid outlet. The flow guide slope forms an acute angle of 15 to 30 degrees with the direction of liquid flow. When the threaded sleeve rotates, centrifugal diffusion is generated by guiding the liquid through the slope.

[0021] Preferably, a cavity is formed between the opening and the threaded portion to allow gas to spiral upward.

[0022] Preferably, the inner wall of the infusion tube is provided with a reverse spiral groove near the outlet end, which is opposite to the direction of rotation of the threaded part. When the liquid flows through, it is subjected to the action of the reverse spiral groove, which generates a shearing force opposite to the rotation direction of the threaded sleeve.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] In the scheme of this application:

[0025] To address the problem in existing technologies where feeding devices introduce hazardous liquids into a batch reactor, causing them to accumulate and pose a danger due to their unstable chemical properties, this application proposes a gas supply pipe that is integrated with the liquid supply pipe. This gas supply pipe utilizes the pressure during liquid input to intermittently push the experimental liquid in, and evenly distributes the liquid across most locations within the batch reactor during rotation, thereby promoting the reaction and shortening the reaction time. Attached Figure Description

[0026] Figure 1 A front view of a chemical safety feeding device provided in this application;

[0027] Figure 2 A cross-sectional view of a chemical safety feeding device provided in this application;

[0028] Figure 3 This application provides a schematic diagram of the gas pipeline structure of a chemical safety feeding device;

[0029] Figure 4 This application provides a schematic diagram of the threaded sleeve structure of a chemical safety feeding device.

[0030] The image shows:

[0031] 1. Infusion tube; 11. Recessed ring; 2. Gas tube; 21. Threaded part; 22. Opening; 23. Spring; 3. Threaded sleeve; 30. Arc groove; 31. Horizontal plate; 311. Flow guide slope; 32. Obstruction ring. Detailed Implementation

[0032] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0033] For an example, please refer to... Figure 1 , Figure 2 , Figure 3 and Figure 4 A chemical safety feeding device, comprising:

[0034] Infusion line 1 supplies chemical liquids into the batch reactor;

[0035] Gas delivery pipe 2 passes through infusion pipe 1 and extends to the outlet end, flush with the port of gas delivery pipe 2. The outer ring of gas delivery pipe 2 and the inner ring of infusion pipe 1 form a cavity for liquid to pass through, and has the following characteristics:

[0036] The threaded portion 21 is provided on the outer ring of the gas transmission pipe 2 and extends towards the liquid outlet end;

[0037] Opening 22, penetrating the gas supply pipe 2 and located in the threaded area covered by the threaded part 21, allows inert gas to pass through;

[0038] Spring 23 is disposed at the end of threaded portion 21;

[0039] Threaded sleeve 3, threadedly connected to threaded portion 21 and covering at least half of the passage path of opening 22, elastically contacts spring 23, and further includes:

[0040] The arc-shaped groove 30 is formed on the outer ring of the threaded sleeve 3. Driven by the liquid pressure, the threaded sleeve 3 rotates circumferentially and exposes more of the penetration area of ​​the opening 22.

[0041] A horizontal plate 31 is set on the threaded sleeve 3. When the threaded sleeve 3 rotates, the liquid is subjected to circumferential thrust and output from the liquid outlet in a parabolic direction.

[0042] During use, the equipment is used by inputting chemical liquid agents into the infusion pipe 1. When the liquid enters the channel formed by the infusion pipe 1 and the gas infusion pipe 2 through the concave ring 11, and at the same time, inert gas is introduced into the gas infusion pipe 2, as the liquid flows in and moves towards the gap, the liquid exerts downward pressure on the obstruction ring 32 and generates circumferential pressure through the arc groove 30, causing the threaded sleeve 3 to start rotating towards the exposed opening 22 and compressing the spring 23. At the same time, as the penetration area of ​​the opening 22 increases, there are more positions for gas to move into the channel at the opening 22, causing the liquid to be dispersed. Furthermore, as the liquid flowing to the position of the horizontal plate 31 is patted by the rotation of the threaded sleeve 3, it generates circumferential motion and disperses in the batch reactor under the action of gravity in a parabolic motion.

[0043] When the opening 22 is exposed to a certain extent, the excessive gas pressure causes the gas to push against the obstruction ring 32, causing the obstruction ring 32 to move towards covering the recessed ring 11. This reduces the flow rate of liquid entering the channel. At this time, the threaded sleeve 3, under the reset effect of the spring 23, returns to the position of covering the opening 22 after losing pressure, and reduces the gas flow. This allows the threaded sleeve 3 to rotate repeatedly, thereby causing the liquid to undergo centrifugal motion and distribute into the reactor. At the same time, the aeration effect prevents the reaction liquid from accumulating and disperses it, resulting in better mixing and reducing the danger of chemical raw materials.

[0044] Also includes:

[0045] A recessed ring 11 is provided in the inner ring of the infusion tube 1, and includes a recess facing the outlet end;

[0046] A blocking ring 32 is provided on the threaded sleeve 3 and extends to the recessed ring 11 to inhibit the flow of liquid to the outlet.

[0047] This achieves the effect of repeated movement of the threaded sleeve 3 and allows the size of the opening 22 to be controlled.

[0048] Also includes:

[0049] The guide slope 311 is set at the inclined end of the horizontal plate 31 towards the liquid outlet. The guide slope 311 forms an acute angle of 15 to 30 degrees with the direction of liquid flow. When the threaded sleeve 3 rotates, centrifugal diffusion is generated by guiding the liquid through the slope.

[0050] A cavity is formed between the opening 22 and the threaded portion 21 to allow gas to spiral upward.

[0051] The inner wall of the infusion tube 1 is provided with a reverse spiral groove near the outlet end, which is opposite to the rotation direction of the threaded part 21. When the liquid flows through, it is subjected to the action of the reverse spiral groove, which generates a shearing force opposite to the rotation direction of the threaded sleeve 3.

[0052] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A chemical safety feeding device, characterized in that, include: Infusion tube (1) is used to supply chemical liquids into the batch reactor; The gas delivery pipe (2) passes through the infusion pipe (1) and extends to the outlet end, flush with the port of the gas delivery pipe (2). The outer ring of the gas delivery pipe (2) and the inner ring of the infusion pipe (1) form a cavity for liquid to pass through, and has the following characteristics: The threaded part (21) is provided on the outer ring of the gas pipe (2) and extends towards the liquid outlet end. An opening (22) extends through the gas pipe (2) and is located in the threaded area covered by the threaded portion (21) for inert gas to pass through; A spring (23) is provided at the end of the threaded portion (21); A threaded sleeve (3), threadedly connected to the threaded portion (21) and covering at least half of the passage path of the opening (22), elastically contacting the spring (23), further comprising: An arc-shaped groove (30) is formed on the outer ring of the threaded sleeve (3). Driven by liquid pressure, the threaded sleeve (3) rotates circumferentially and exposes more of the penetration area of ​​the opening (22). A horizontal plate (31) is set on a threaded sleeve (3). When the threaded sleeve (3) rotates, the liquid is subjected to circumferential thrust and output from the liquid outlet along a parabolic direction.

2. The chemical safety feeding device according to claim 1, characterized in that, Also includes: A recessed ring (11) is provided in the inner ring of the infusion tube (1), and includes a recess facing the outlet end; A blocking ring (32) is provided on the threaded sleeve (3) and extends to the recessed ring (11) to inhibit the flow of liquid to the outlet.

3. The chemical safety feeding device according to claim 2, characterized in that, Also includes: A flow guide slope (311) is provided on the inclined end of the horizontal plate (31) towards the liquid outlet. The flow guide slope (311) forms an acute angle of 15 to 30 degrees with the direction of liquid flow. When the threaded sleeve (3) rotates, centrifugal diffusion is generated by guiding the liquid through the slope.

4. A chemical safety feeding device according to claim 3, characterized in that, A cavity is formed between the opening (22) and the threaded portion (21) to allow gas to spiral upward.

5. A chemical safety feeding device according to claim 4, characterized in that, The inner wall of the infusion tube (1) near the outlet end is provided with a reverse spiral groove that is opposite to the rotation direction of the threaded part (21). When the liquid flows through, it is subjected to the action of the reverse spiral groove to generate a shearing force that is opposite to the rotation direction of the threaded sleeve (3).

Images