Mixed acid spraying device

Abstract

The utility model relates to a mixed acid spraying device, which belongs to the technical field of mixed acid and comprises a tap water valve and an acid mixing mechanism arranged on the right side of the tap water valve, the acid mixing mechanism comprises a tap water pipeline fixedly mounted on the right side of the tap water valve, and a rotor flow meter is arranged on the inner side of the tap water pipeline. And a flange acid inlet pipeline is fixedly mounted at the bottom of the tap water pipeline. According to the acid mixing and spraying device, the tap water valve is matched with the rotor flow meter, the tap water flow can be adjusted, water is sprayed out through the water distribution holes in the bottom of the water adding pipeline and fully reacts with concentrated acid flowing in from the flange acid inlet pipeline, primary acid mixing is achieved in the first bin, secondary flue gas dilution acid mixing is completed in the second bin, the acid mixing effect is good, and the acid mixing efficiency is high. When the internal pressure is too high, the piston block is matched with the air outlet groove to exhaust and reduce pressure, and meanwhile, the temperature controller tracks the acid temperature, so that safe and stable operation of the device is ensured, corrosion of acid mist to the tank surface is reduced, and the tank surface environment is improved.

Description

Technical Field

[0001] This utility model relates to the field of mixed acid technology, specifically a mixed acid spraying device. Background Technology

[0002] An acid mixer is a device used to mix multiple acids or acids with other liquids in a specific ratio to prepare a mixed acid solution that meets process requirements. It is widely used in industries such as chemical, metallurgy, and electronics. It typically consists of a feed pipe, a mixing chamber, a stirring device (some acid mixers have this), and a discharge pipe. The feed pipe is connected to different acid storage tanks or other liquid storage devices to introduce the materials to be mixed. The mixing chamber is the core part for achieving mixing. Some acid mixers are equipped with a stirring device, such as a stirring paddle, to accelerate the mixing process through mechanical stirring. The discharge pipe transports the uniformly mixed acid solution to subsequent processes.

[0003] Previous equipment struggled to precisely control the mixing ratio and flow rate of water and acid. Manual adjustment was not only inefficient but also prone to deviations in the acid-water ratio, affecting product quality and reaction results. Furthermore, the heat and fumes generated during the mixing process were difficult to manage effectively. Heat accumulation could pose safety hazards, while fumes emissions polluted the environment. In terms of equipment safety, existing acid-water mixing equipment was insufficient to cope with internal pressure changes. When pressure increased during the reaction, the lack of a reliable pressure reduction mechanism could lead to equipment damage or even danger. In addition, acid mist caused severe corrosion to the equipment, shortening its lifespan and increasing maintenance and replacement costs. Therefore, this application proposes an alternative technical solution to address these issues. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a mixed acid spraying device, which has the advantages of effective acid mixing and gas pressure regulation. It solves the problems of previous devices that were difficult to accurately control the mixing ratio and flow rate of water and acid. Manual adjustment is not only inefficient, but also prone to deviation in the mixed acid ratio, affecting product quality and reaction effect. Moreover, the heat and fumes generated by the reaction of acid and water during the mixing process are difficult to handle effectively. If the heat accumulates, it may cause safety hazards, and the fumes emitted will pollute the environment. In terms of equipment safety, existing acid mixing devices are insufficient in dealing with internal pressure changes and lack a reliable pressure reduction mechanism when the pressure rises during the reaction.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mixed acid spraying device, including a tap water valve, and a mixed acid mechanism provided on the right side of the tap water valve;

[0006] The acid mixing mechanism includes a tap water pipe fixedly installed on the right side of the tap water valve, a rotor flow meter installed inside the tap water pipe, a flange acid inlet pipe fixedly installed at the bottom of the tap water pipe, a water filling pipe fixedly installed at the bottom of the flange acid inlet pipe, and a water distribution hole provided at the bottom of the water filling pipe.

[0007] A water inlet plug is fixedly installed at the bottom of the water inlet pipe, and an acid mixing vessel is fixedly installed on the outside of the water inlet pipe. A DN flange is provided on the right side of the acid mixing vessel, and an acid inlet control valve is fixedly connected to the right side of the acid mixing vessel. Dilute acid liquid is placed inside the acid mixing vessel.

[0008] Furthermore, a pressure-reducing assembly is provided on the top of the acid mixing vessel. The pressure-reducing assembly includes a pressure-reducing cylinder fixedly installed on the top of the acid mixing vessel. A limiting cylinder is fixedly installed on the inner top wall of the pressure-reducing cylinder. A limiting rod is movably connected inside the limiting cylinder. A sealing plate is fixedly installed at the bottom of the limiting rod. Piston blocks that are movably connected to the pressure-reducing cylinder are fixedly installed on both the left and right sides of the sealing plate.

[0009] Furthermore, the end of the water pipe is provided with an external thread, and the water valve is threadedly connected to the water pipe through the external thread.

[0010] Furthermore, the flanged acid inlet pipe and the water supply pipe are fixedly connected by welding.

[0011] Furthermore, the acid mixing vessel and the DN flange are connected by a flange, and the flange of the acid mixing vessel and the DN flange are fastened together by bolts and nuts.

[0012] Furthermore, a limiting groove is formed inside the limiting cylinder, and the limiting rod is slidably connected to the limiting cylinder through the limiting groove.

[0013] Furthermore, the pressure reducing cylinder has vent grooves on both the left and right sides, the piston block is positioned corresponding to the vent grooves, and the mixed acid vessel has a first chamber and a second chamber inside.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] This mixed acid spraying device, in conjunction with a tap water valve and a rotor flow meter, allows for flexible adjustment of the tap water flow. Water is sprayed out through a water distribution hole at the bottom of the water supply pipe, fully reacting with the concentrated acid flowing in from the flange inlet pipe. Primary mixing of acid is achieved in the first chamber, and secondary flue gas dilution mixing is completed in the second chamber, resulting in excellent mixing performance. The pressure-reducing assembly at the top of the mixing vessel includes a pressure-reducing cylinder and a limiting cylinder. When the internal pressure is too high, a piston block works with the vent groove to release and reduce pressure. Simultaneously, a temperature controller tracks the acid temperature, ensuring safe and stable operation of the device. This also reduces acid mist corrosion on the tank surface and improves the tank environment. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the structure of this utility model;

[0017] Figure 2 This utility model Figure 1 Enlarged schematic diagram of structure A in the middle;

[0018] Figure 3 This is a three-dimensional schematic diagram of the acid inlet control valve, acid mixing vessel, and pressure reducing cylinder of this utility model.

[0019] In the diagram: 1. Water inlet valve; 2. Rotor flow meter; 3. Water inlet pipe; 4. Flange acid inlet pipe; 5. Water supply pipe; 6. DN flange; 7. Acid inlet control valve; 8. Water distribution hole; 9. Water supply pipe plug; 10. Acid mixing vessel; 12. Dilute acid liquid; 13. Pressure reducing cylinder; 14. Limiting cylinder; 15. Limiting rod; 16. Sealing plate; 17. Piston block. Detailed Implementation

[0020] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 3 The mixed acid spraying device in this embodiment includes a tap water valve 1 and a mixed acid mechanism disposed on the right side of the tap water valve 1.

[0022] In Example 1, the acid mixing mechanism includes a water pipe 3 fixedly installed on the right side of a water valve 1. The end of the water pipe 3 is provided with an external thread. The water valve 1 is threadedly connected to the water pipe 3 through the external thread, which facilitates connection and fixation and helps with sealing. A rotor flow meter 2 is provided on the inner side of the water pipe 3. A flange acid inlet pipe 4 is fixedly installed at the bottom of the water pipe 3. A water supply pipe 5 is fixedly installed at the bottom of the flange acid inlet pipe 4. The flange acid inlet pipe 4 and the water supply pipe 5 are fixedly connected by welding. A water distribution hole 8 is provided at the bottom of the water supply pipe 5.

[0023] The bottom of the water supply pipe 5 is fixedly installed with a water supply pipe plug 9, and the outside of the water supply pipe 5 is fixedly installed with an acid mixing vessel 10. The acid mixing vessel 10 is connected to the DN flange 6 by a flange. The flange of the acid mixing vessel 10 and the DN flange 6 are fastened together by bolts and nuts, which helps to achieve a sealed connection. The right side of the acid mixing vessel 10 is provided with a DN flange 6, and the right side of the acid mixing vessel 10 is fixedly connected with an acid inlet control valve 7. The inside of the acid mixing vessel 10 is filled with dilute acid liquid 12, and the surface of the dilute acid liquid 12 is a tank surface.

[0024] In embodiment 2, a pressure-reducing assembly is provided on the top of the acid mixing vessel 10. The pressure-reducing assembly includes a pressure-reducing cylinder 13 fixedly installed on the top of the acid mixing vessel 10, a limiting cylinder 14 fixedly installed on the inner top wall of the pressure-reducing cylinder 13, a limiting rod 15 movably connected inside the limiting cylinder 14, a limiting groove opened inside the limiting cylinder 14, and the limiting rod 15 slidably connected to the limiting cylinder 14 through the limiting groove, which helps the limiting rod 15 to move.

[0025] A sealing plate 16 is fixedly installed at the bottom of the limiting rod 15. Piston blocks 17 that are movably connected to the pressure reducing cylinder 13 are fixedly installed on both the left and right sides of the sealing plate 16. Gas outlet grooves are opened on both the left and right sides of the pressure reducing cylinder 13. The piston blocks 17 are positioned corresponding to the gas outlet grooves. The mixed acid vessel 10 is provided with a first chamber and a second chamber inside, which helps to reduce pressure and release gas.

[0026] It should be noted that this mixed acid spraying device, through the cooperation of the tap water valve 1 and the rotor flow meter 2, can flexibly adjust the tap water flow. The water distribution hole 8 at the bottom of the water supply pipe 5 allows water to spray out and fully react with the concentrated acid flowing in from the flange acid inlet pipe 4. The first stage of acid mixing is achieved in the first chamber, and the second stage of flue gas dilution and acid mixing is completed in the second chamber. The acid mixing effect is good. The pressure reducing component at the top of the acid mixing vessel 10 includes a pressure reducing cylinder 13, a limiting cylinder 14, etc. When the internal pressure is too high, the piston block 17 cooperates with the vent groove to exhaust and reduce pressure. At the same time, the temperature controller tracks the acid temperature to ensure the safe and stable operation of the device, and also reduces the corrosion of the tank surface by acid mist and improves the tank surface environment.

[0027] The working principle of the above embodiments is as follows:

[0028] Before the mixing of acid begins, the tap water supply is controlled by the tap water valve 1. The tap water flows through the tap water pipe 3, and the rotor flow meter 2 inside the pipe can monitor the water flow in real time, making it easy to adjust the appropriate amount of water through the valve. Concentrated acid flows in from the flange inlet pipe 4 and mixes with the tap water in the water supply pipe 5. The water distribution hole 8 at the bottom of the water supply pipe 5 causes the water to flow out in a spray pattern. The acid and water undergo a primary mixing reaction at a position above the tank surface of the first compartment of the mixing vessel 10, achieving preliminary dilution. The heat and flue gas generated by the mixing reaction of water and acid enter the second compartment through the insertion tube inserted about 200 mm below the liquid surface in the tank at the bottom of the first compartment acid distributor device. In the second compartment, the rapidly mixed acid solution, flue gas, and reaction heat are fully mixed under the action of the rapidly sprayed mixed acid solution. The flue gas and heat are carried to the bottom liquid surface of the tank for secondary degradation and dilution and absorption of reaction heat, thereby completing the entire mixing process and making full use of harmful substances.

[0029] When the pressure inside the acid mixing vessel 10 increases, the pressure reducing component comes into play. Inside the pressure reducing cylinder 13 at the top of the acid mixing vessel 10, the limiting rod 15 slides inside the limiting cylinder 14, causing the sealing plate 16 and piston block 17 to move. When the pressure reaches a certain level, the piston block 17 corresponds to the vent grooves on the left and right sides of the pressure reducing cylinder 13, allowing the internal gas to be discharged, thus reducing the pressure and ensuring the safe and stable operation of the device. The temperature controller tracks and detects the acid temperature of the tank in real time, so as to monitor and adjust the acid mixing process.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mixed acid spraying device, comprising a tap water valve (1), characterized in that: The acid mixing mechanism is provided on the right side of the tap water valve (1); The acid mixing mechanism includes a tap water pipe (3) fixedly installed on the right side of the tap water valve (1), a rotor flow meter (2) is provided on the inner side of the tap water pipe (3), a flange acid inlet pipe (4) is fixedly installed at the bottom of the tap water pipe (3), a water supply pipe (5) is fixedly installed at the bottom of the flange acid inlet pipe (4), and a water distribution hole (8) is provided at the bottom of the water supply pipe (5). A water pipe plug (9) is fixedly installed at the bottom of the water supply pipe (5). A mixing vessel (10) is fixedly installed on the outside of the water supply pipe (5). A DN flange (6) is provided on the right side of the mixing vessel (10). An acid inlet control valve (7) is fixedly connected to the right side of the mixing vessel (10). Dilute acid liquid (12) is provided inside the mixing vessel (10).

2. The mixed acid spraying device according to claim 1, characterized in that: The top of the acid mixing vessel (10) is provided with a pressure reducing assembly, which includes a pressure reducing cylinder (13) fixedly installed on the top of the acid mixing vessel (10). A limiting cylinder (14) is fixedly installed on the inner top wall of the pressure reducing cylinder (13). A limiting rod (15) is movably connected inside the limiting cylinder (14). A sealing plate (16) is fixedly installed at the bottom of the limiting rod (15). Piston blocks (17) that are movably connected to the pressure reducing cylinder (13) are fixedly installed on both the left and right sides of the sealing plate (16).

3. The mixed acid spraying device according to claim 1, characterized in that: The end of the water pipe (3) is provided with an external thread, and the water valve (1) is threadedly connected to the water pipe (3) through the external thread.

4. The mixed acid spraying device according to claim 1, characterized in that: The flange acid inlet pipe (4) and the water supply pipe (5) are fixedly connected by welding.

5. The mixed acid spraying device according to claim 2, characterized in that: The acid mixing vessel (10) and the DN flange (6) are connected by a flange, and the flange of the acid mixing vessel (10) and the DN flange (6) are fastened together by bolts and nuts.

6. The mixed acid spraying device according to claim 2, characterized in that: The limiting cylinder (14) has a limiting groove inside, and the limiting rod (15) is slidably connected to the limiting cylinder (14) through the limiting groove.

7. The mixed acid spraying device according to claim 2, characterized in that: The pressure reducing cylinder (13) has air outlet grooves on both the left and right sides, and the piston block (17) is positioned corresponding to the air outlet grooves. The mixed acid vessel (10) has a first chamber and a second chamber inside.

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