Acidic cleaning medium two-phase circulation conversion cleaning system and use method thereof

Abstract

The invention relates to the technical field of pickling tanks, and discloses an acid cleaning medium two-phase circulation conversion cleaning system and a using method thereof.The acid cleaning medium two-phase circulation conversion cleaning system comprises a tank body, the tank body is provided with a pickling cavity and provided with an air suction pressurization assembly, and the air suction pressurization assembly communicates with a high-pressure tank; the high-pressure tank communicates with a first liquid outlet pipe, the first liquid outlet pipe communicates with the pickling cavity, and a first electric valve is installed on the first liquid outlet pipe. According to the acid cleaning medium two-phase circulation conversion cleaning system and the using method thereof, acid mist generated in the acid pickling process can be sucked in through the air suction pressurization assembly and injected into the high-pressure tank, harm to the environment and health of staff caused by diffusion of the acid mist is avoided, high pressure is formed in the high-pressure tank, and the service life of the high-pressure tank is prolonged. The acid mist is liquefied into acid liquid and gathered at the bottom of the high-pressure tank, the first electric valve is opened, the acid liquid formed by liquefaction is pressed into the pickling cavity, reutilization of the acid mist is achieved, and waste of pickling raw materials is reduced.

Description

Technical Field

[0001] The invention relates to the field of pickling tanks, and more particularly to an acidic cleaning medium two-phase circulation conversion cleaning system and a use method thereof. Background Art

[0002] The pickling tank is a container used to hold aqueous solution and remove the metal surface film during the pickling process. It is widely used in the metal manufacturing industry, automobile manufacturing industry, electronics industry, food and beverage industry and chemical industry. As an important part of the hydraulic system, the surface quality and cleanliness of the hydraulic oil tank have an important impact on the stability and life of the hydraulic system. During the production process of the hydraulic oil tank, impurities such as oil, scale, and rust will adhere to the surface. The impurities on the surface of the oil tank can be removed by pickling, making the surface of the oil tank bright and exposing the metal matrix, which is conducive to the subsequent surface treatment process (such as phosphating, painting, etc.) to form a good combination with the metal matrix, thereby improving the corrosion resistance of the oil tank. During the pickling process of the hydraulic oil tank body, acidic gas will evaporate from the pickling liquid and combine with water vapor in the air to form tiny droplets. These droplets are suspended in the air to form acid mist, which is harmful to the environment and the health of employees.

[0003] The existing pickling tank absorbs and purifies the acid mist through an air suction component, and then discharges the purified clean gas into the atmosphere. Although this solves the problem of the harm of acid mist to the environment and employees, it also causes a waste of pickling raw materials. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects in the prior art and provide an acid cleaning medium two-phase circulation conversion cleaning system and a method of using the system for reusing acid mist.

[0005] To achieve the above-mentioned purpose, the technical solution of the present invention is to provide a two-phase circulation conversion cleaning system of an acidic cleaning medium, comprising: a tank body, the tank body is provided with a pickling chamber, the tank body is equipped with an air suction and pressurizing component, the air suction and pressurizing component is connected to a high-pressure tank, the high-pressure tank is connected to a first liquid outlet pipe, the first liquid outlet pipe is connected to the pickling chamber, and a first electric valve is installed on the first liquid outlet pipe.

[0006] By using the acid cleaning medium two-phase circulation conversion cleaning system and the use method thereof described in the present invention, the acid mist generated in the pickling process can be sucked in through the suction and pressurizing component and injected into the high-pressure tank, thereby avoiding the harm of the acid mist diffusion to the environment and the health of employees. With the injection of gas, high pressure is formed in the high-pressure tank. Under the action of the high pressure, the acid mist is liquefied into acidic liquid and gathered at the bottom of the high-pressure tank. The first electric valve is opened, and the liquefied acidic liquid is pressed into the pickling chamber through the first liquid outlet pipe, thereby realizing the reuse of the acid mist and reducing the waste of pickling raw materials.

[0007] Preferably, the high-pressure tank includes an inner cavity and an outer cavity, the outer cavity is located outside the inner cavity, the first liquid outlet pipe is connected to the bottom of the inner cavity, condensed water flows in the outer cavity, the bottom of the outer cavity is connected to the first water inlet pipe, and the top of the outer cavity is connected to the first water outlet pipe. With this design, the condensed water can cool the gas and liquid in the inner cavity, which is conducive to improving the liquefaction efficiency of the acid mist.

[0008] Preferably, the air intake and pressurization assembly includes a mounting frame mounted on the tank body, a fan is fixedly mounted on the mounting frame, the fan is connected to a pipeline unit, the pipeline unit is connected to an air compressor, the air compressor is connected to the inner cavity through a first connecting pipe, and a first one-way valve is installed on the first connecting pipe. With such a design, the fan and the air compressor cooperate to absorb the generated acid mist, which is conducive to improving the absorption and treatment efficiency of the air intake and pressurization assembly for the acid mist.

[0009] Preferably, the mounting frame is hinged to the tank body, the pipeline unit includes a first transfer tube connected to the fan, a corrugated hose connected to the first transfer tube, and a second transfer tube connected to the corrugated hose, the first transfer tube is fixedly connected to the mounting frame, a fixing plate is fixedly installed on the tank body, the corrugated hose is fixedly sleeved to the fixing plate, the corrugated hose is made of 316L stainless steel, and the second transfer tube is connected to the air compressor. Such a design can improve the strength of the corrugated hose after shaping, so that the air intake of the fan can maintain a stable orientation for a long time, thereby absorbing the acid mist well and stably.

[0010] Preferably, the first liquid inlet pipes connected to the pickling chamber are provided on both sides of the tank body, and the second electric valves are installed on the two first liquid inlet pipes, the second water inlet pipes connected to the pickling chamber are provided on both sides of the tank body, and the third electric valves are installed on the two second water inlet pipes, and the tank body is fixedly installed with an ultrasonic level meter and a pH meter. With such a design, the ultrasonic level meter can monitor the liquid level of the pickling solution in real time, and the pH meter can monitor the concentration of the pickling solution in real time, so as to inject acid and water into the tank body in time.

[0011] Preferably, an aeration main pipe is arranged outside the tank body, and a plurality of aeration branches are connected inside the aeration main pipe, and the plurality of aeration branches extend into the pickling chamber, and the aeration main pipe passes hot air. With such a design, the pickling liquid can be aerated through the aeration main pipe and the aeration branches, so that the pickling liquid can be stirred and heated, which is beneficial to improving the pickling effect and efficiency.

[0012] Preferably, the bottom inner wall of the tank body is provided with a plurality of hole groups, each of which includes eight screw holes, and four limiting pillars are installed in the tank body, and the limiting pillars are fixedly connected to the bottom inner wall of the tank body by bolts. Such a design can limit the position of boxes of different sizes through the combination of limiting pillars and different hole groups, which is conducive to improving the applicability of the two-phase circulation conversion cleaning system of the acid cleaning medium.

[0013] Preferably, the acid cleaning medium two-phase circulation conversion cleaning system also includes a pickling float, the pickling float is provided with a cavity inside, the outer surface of the pickling float is provided with a plurality of injection holes connected to the cavity, the outer surface of the pickling float is provided with a plurality of through-tube holes connected to the cavity, the first liquid outlet pipe extends into the pickling cavity at one end thereof and is connected to a plurality of injection pipes, a fourth electric valve is installed on the plurality of injection pipes, the number of the injection holes, the through-tube holes and the injection pipes is the same, the plurality of injection pipes extend into the cavity from the plurality of through-tube holes respectively, the plurality of injection pipes extend out of the outer surface of the pickling float from the plurality of injection holes respectively, the high-pressure tank is provided with an air outlet pipe connected to the inner cavity, and the air outlet pipe is connected to the first liquid outlet pipe, and a fifth electric valve is installed on the air outlet pipe. Such a design can control the pickling float to perform auxiliary pickling on the inner wall of the box body, thereby improving the pickling effect on the inner wall of the box body.

[0014] Preferably, the acid cleaning medium two-phase circulation conversion cleaning system also includes a liquid suction pipe, a high-pressure pump and a second liquid inlet pipe, the two ends of the liquid suction pipe are respectively connected to the pickling chamber and the liquid inlet of the high-pressure pump, the two ends of the second liquid inlet pipe are respectively connected to the inner cavity and the liquid outlet of the high-pressure pump, and a second one-way valve is installed on the second liquid inlet pipe. With such a design, the high-pressure pump can pump the pickling liquid in the tank into the high-pressure tank, ensuring that the injection pipe can always spray the pickling liquid and gas mixture, thereby ensuring the stability of the pickling float assisted pickling.

[0015] A method for using an acidic cleaning medium two-phase circulation conversion cleaning system comprises the following steps: S1. Prepare pickling solution: start the ultrasonic level meter and the pH meter, control the second electric valve and the third electric valve to be opened for a period of time respectively, and a proper amount of high-concentration hydrochloric acid enters the pickling chamber from the two first liquid inlet pipes on both sides, and a proper amount of water enters the pickling chamber from the two second water inlet pipes on both sides, so as to obtain a pickling solution with a preset concentration and liquid level height; S2, mixing pickling liquid: passing hot air into the aeration main pipe, and the hot air enters the pickling liquid through the aeration main pipe and the aeration branch pipe; S3, starting the air suction and pressurizing component: starting the fan and the air compressor to make the air pressure in the high-pressure tank reach a preset value; S4, injecting pickling liquid into the high-pressure tank: starting the high-pressure pump to pump part of the pickling liquid in the tank into the high-pressure tank; S5, passing condensate: continuously passing condensate into the first water inlet pipe; S6, placing the box: controlling the external mechanical arm to place the box into the limiting grooves of the four limiting pillars; S7, assisting pickling of the inner wall of the box body: controlling the first electric valve and the fifth electric valve to open, and controlling the fourth electric valve to open, so that the pickling float moves and assists pickling of the inner wall of the box body; S8, taking out the box body: controlling the external robot arm to take out the pickled box body from the tank body.

[0016] The beneficial effects of the present invention are: 1. By using the acid cleaning medium two-phase circulation conversion cleaning system and the use method thereof described in the present invention, the acid mist generated during the pickling process can be sucked in through the suction and pressurization component and injected into the high-pressure tank, thereby avoiding the harm of the acid mist diffusion to the environment and the health of employees. With the injection of gas, high pressure is formed in the high-pressure tank. Under the action of high pressure, the acid mist is liquefied into acidic liquid and gathered at the bottom of the high-pressure tank. The first electric valve is opened, and the liquefied acidic liquid is pressed into the pickling chamber through the first liquid outlet pipe, thereby realizing the reuse of the acid mist and reducing the waste of pickling raw materials; 2. The combination of the fan and the air compressor combines the air suction capacity of the fan and the compression function of the air compressor, greatly improving the absorption and treatment efficiency of the air suction and pressurization components on acid mist, ensuring that the acid mist generated during the pickling process is absorbed cleanly; 3. By setting a pickling float and spraying a mixture of pickling liquid and gas through a spray pipe, the aeration function is realized and the impact force of aeration is improved. The pickling float can assist in pickling the inner wall of the box, and by controlling the opening and closing of the fourth electric valve on different spray pipes, the movement of the pickling float can be controlled, which greatly improves the pickling effect of the inner wall of the box; 4. Pumping part of the pickling liquid in the tank into the high-pressure tank through a high-pressure pump can ensure that the injection pipe can always spray the pickling liquid and gas mixture, ensuring the stability of the auxiliary pickling effect of the pickling float on the inner wall of the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the two-phase circulation conversion cleaning system of the acid cleaning medium; Figure 2 It is a three-dimensional structural schematic diagram of the acid cleaning medium two-phase circulation conversion cleaning system; Figure 3 It is a schematic diagram of the main cross-section of the acid cleaning medium two-phase circulation conversion cleaning system; Figure 4 It is a top view schematic diagram of the two-phase circulation conversion cleaning system of the acid cleaning medium; Figure 5 It is a three-dimensional structural schematic diagram of the tank body and the limiting pillar; Figure 6 It is a schematic diagram of the three-dimensional structure of the pickling float; Figure 7 yes Figure 3 A magnified view of the structure at center A; Figure 8 is a schematic diagram of a three-dimensional structural section of a first liquid inlet pipe and an injection pipe; Fig. 9 It is a right side cross-sectional schematic diagram of a two-phase circulation conversion cleaning system for an acid cleaning medium.

[0018] In the figure: 100, tank body; 110, pickling chamber; 120, fixing plate; 130, first liquid inlet pipe; 131, second electric valve; 132, injection pipe; 133, fourth electric valve; 140, second water inlet pipe; 141, third electric valve; 150, ultrasonic level meter; 160, pH meter; 170, screw hole; 180, limit support; 181, limit groove; 200, suction and pressurization assembly; 210, mounting frame; 220, fan; 230, pipeline unit; 231, first transfer pipe; 232, corrugated hose; 233, second transfer pipe; 240, air compressor; 250, first connecting pipe; 251, first non-return valve; 300, high-pressure tank; 310, pressure gauge; 320, safety valve; 330, inner cavity; 340, outer cavity; 400, first liquid outlet pipe; 410, first electric valve; 510, first water inlet pipe; 520, first water outlet pipe; 610, aeration main pipe; 620, aeration branch pipe; 700, pickling float; 710, cavity; 720, injection hole; 730, pipe penetration hole; 800, air outlet pipe; 810, fifth electric valve; 910, liquid suction pipe; 920, high-pressure pump; 930, second liquid inlet pipe; 931, second non-return valve. DETAILED DESCRIPTION

[0019] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is to enable those skilled in the art to better understand and implement the subject matter described herein. The functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the present specification. Various examples may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0020] In order to better understand the present invention, Figure 1-Figure 9 The present invention provides an acid cleaning medium two-phase circulation conversion cleaning system and a method for using the same in detail.

[0021] Embodiment 1: like Figure 1-Figure 4 As shown, a two-phase circulation conversion cleaning system of an acidic cleaning medium includes: a tank body 100, the tank body 100 is provided with a pickling chamber 110, the tank body 100 is installed with an air suction and pressurizing component 200, the air suction and pressurizing component 200 is connected to a high-pressure tank 300, the high-pressure tank 300 is connected to a first liquid outlet pipe 400, the first liquid outlet pipe 400 is connected to the pickling chamber 110, and a first electric valve 410 is installed on the first liquid outlet pipe 400.

[0022] It should be noted that the pickling chamber 110 contains pickling liquid. During the pickling process, the box 1 is immersed in the pickling liquid. The air suction and pressurization component 200 is used to absorb the acid mist and continuously inject the gas mixed with the acid mist into the high-pressure tank 300. Under the action of high pressure, the movement of the acid mist molecules is restricted, and the collision frequency and intensity between the acid mist molecules are increased, thereby enhancing the interaction force between the acid mist molecules, resulting in a decrease in the average distance between the acid mist molecules, making it easier for the acid mist molecules to aggregate and convert into a liquid state. The acidic liquid formed after the acid mist is liquefied is gathered at the bottom of the high-pressure tank 300; When the first electric valve 410 is closed, as the gas is continuously injected, the pressure in the high-pressure tank 300 gradually increases. When the first electric valve 410 is opened, under the action of the high pressure inside the high-pressure tank 300, the acidic liquid at the bottom of the high-pressure tank 300 is pressed into the pickling chamber 110 through the first liquid outlet pipe 400 for reuse.

[0023] In this embodiment, an opening is provided at the top of the tank body 100, and the suction and pressurizing assembly 200 is installed at the top of the tank body 100, and the suction port of the suction and pressurizing assembly 200 faces the opening at the top of the tank body 100, one end of the first liquid outlet pipe 400 is connected to the bottom of the high-pressure tank 300, and the other end of the first liquid outlet pipe 400 passes through the bottom of the tank body 100 and extends into the pickling chamber 110; A pressure gauge 310 and a safety valve 320 are installed on the top of the high-pressure tank 300. The main component of the pickling solution is hydrochloric acid. The safety valve 320 is connected to a container containing a sodium hydroxide solution through a pipeline (not shown in the figure). The pressure inside the high-pressure tank 300 can be observed in real time through the pressure gauge 310. When the gas pressure in the high-pressure tank 300 exceeds a preset value, the gas in the high-pressure tank 300 enters the sodium hydroxide solution through the safety valve 320. The sodium hydroxide solution reacts with the hydrochloric acid gas and hydrochloric acid droplets, thereby purifying the gas and ensuring that acidic harmful components do not enter the external environment.

[0024] By using the acid cleaning medium two-phase circulation conversion cleaning system and the use method thereof of the present invention, the acid mist generated during the pickling process can be sucked in through the suction and pressurizing component 200 and injected into the high-pressure tank 300, thereby avoiding the spread of acid mist and causing harm to the environment and the health of employees. With the injection of gas, high pressure is formed in the high-pressure tank 300. Under the action of the high pressure, the acid mist is liquefied into an acidic liquid and gathered at the bottom of the high-pressure tank 300. The first electric valve 410 is opened, and the liquefied acidic liquid is pressed into the pickling chamber 110 through the first liquid outlet pipe 400, thereby realizing the reuse of the acid mist and reducing the waste of pickling raw materials.

[0025] Embodiment 2: As an optimization of Example 1, Figure 3 As shown, the high-pressure tank 300 includes an inner cavity 330 and an outer cavity 340. The outer cavity 340 is located outside the inner cavity 330. The first liquid outlet pipe 400 is connected to the bottom of the inner cavity 330. Condensate flows in the outer cavity 340. The bottom of the outer cavity 340 is connected to the first water inlet pipe 510, and the top of the outer cavity 340 is connected to the first water outlet pipe 520.

[0026] It should be noted that condensed water enters the outer cavity 340 from the first water inlet pipe 510 and flows out of the outer cavity 340 from the first water outlet pipe 520. In this process, the condensed water fills the outer cavity 340. The condensed water can cool the gas and liquid in the inner cavity 330. Cooling can reduce the kinetic energy of the acid mist molecules, making it easier for the acid mist to gather together to form an acidic liquid. Cooling can also reduce the saturated vapor pressure, so that the liquefaction of the acid mist can be achieved under a lower pressure. Cooling and pressurization are carried out simultaneously. The superposition of the two effects promotes the liquefaction of the acid mist, greatly improving the liquefaction efficiency of the acid mist. In addition, cooling makes the liquefied acidic liquid more stable and not easy to evaporate back into a gaseous state.

[0027] Embodiment 3: As an optimization of Example 2, Figure 1 , Figure 2 , Figure 3 and Fig. 9As shown, the air intake and pressurization component 200 includes a mounting frame 210 installed on the trough body 100, and a fan 220 is fixedly installed on the mounting frame 210. The fan 220 is connected to a pipeline unit 230, and the pipeline unit 230 is connected to an air compressor 240. The air compressor 240 is connected to the inner cavity 330 through a first connecting pipe 250, and a first one-way valve 251 is installed on the first connecting pipe 250.

[0028] It should be noted that the air intake port of the fan 220 is open toward the top of the tank body 100. The fan 220 is used to absorb acid mist. The gas mixed with acid mist absorbed by the fan 220 enters the air compressor 240 through the pipeline unit 230. The air compressor 240 compresses the gas and injects it into the inner cavity 330 of the high-pressure tank 300 through the first connecting pipe 250. By setting the first one-way valve 251, even if the air compressor 240 stops working, the gas will not flow back. Through the cooperation of the fan 220 and the air compressor 240, the suction capacity of the fan 220 and the compression function of the air compressor 240 are combined, and the absorption and treatment efficiency of the suction pressurization component 200 for acid mist can be improved.

[0029] Embodiment 4: As an optimization of Example 3, Figure 1 , Figure 2 , Figure 3 and Fig. 9 As shown, the mounting frame 210 is hinged to the tank body 100, and the pipeline unit 230 includes a first transfer tube 231 connected to the fan 220, a corrugated hose 232 connected to the first transfer tube 231, and a second transfer tube 233 connected to the corrugated hose 232. The first transfer tube 231 is fixedly connected to the mounting frame 210, and a fixing plate 120 is fixedly installed on the tank body 100. The corrugated hose 232 is fixedly sleeved on the fixing plate 120. The material of the corrugated hose 232 is 316L stainless steel. The second transfer tube 233 is connected to the air compressor 240.

[0030] It should be noted that the corrugated hose 232 can be folded and bent when subjected to a sufficiently large external force. When the external force is removed, the corrugated hose 232 can be automatically shaped. The fixing plate 120 can provide fixed support for the bottom end of the corrugated hose 232. By adjusting the state of the corrugated hose 232, the first connecting pipe 250 can be driven to move, thereby driving the mounting frame 210 to rotate around its hinge axis, so that the fan 220 moves synchronously with the mounting frame 210, thereby adjusting the direction of the air intake port of the fan 220, so as to facilitate adaptive adjustment according to actual conditions (such as the shape and size of the box 1, the rate of acid mist generation, etc.), and better absorb the acid mist. The hose made of 316L stainless steel not only has good corrosion resistance, but also can improve the strength of the corrugated hose 232 after shaping, so that the air intake port of the fan 220 can maintain a stable direction for a long time. In order to ensure that the fan 220 can absorb the acid mist cleanly, multiple mounting frames 210 can be set according to actual conditions (the range of acid mist generation, the rate of acid mist generation, etc.), and multiple fans 220 can also be installed on the same mounting frame 210. The acid mist absorbed by all fans 220 will eventually flow into the second transfer tube 233, and enter the inner cavity 330 of the high-pressure tank 300 through the air compressor 240 and the first connecting pipe 250.

[0031] In this embodiment, two mounting frames 210, first transfer tubes 231, and corrugated hoses 232 are provided. The two mounting frames 210 are located on the same side of the trough body 100, and the two mounting frames 210 are arranged in sequence along the length direction of the trough body 100. Two fans 220 and a first transfer tube 231 are fixedly installed on each mounting frame 210. The two fans 220 are located at the same horizontal height, and the air outlets of the two fans 220 are connected to the first connecting pipe 250. The two corrugated hoses 232 are respectively connected to the two first transfer tubes 231, and the two corrugated hoses 232 are connected to the second transfer tube 233. By providing four fans 220, the range of the air intake and pressurization assembly 200 to absorb acid mist can be increased so that the acid mist can be absorbed cleanly.

[0032] Embodiment 5: As an optimization of Example 4, Figure 1 , Figure 3 and Figure 4 As shown, first liquid inlet pipes 130 communicating with the pickling chamber 110 are provided on both sides of the tank body 100, and second electric valves 131 are installed on the two first liquid inlet pipes 130. Second water inlet pipes 140 communicating with the pickling chamber 110 are provided on both sides of the tank body 100, and third electric valves 141 are installed on the two second water inlet pipes 140. An ultrasonic liquid level meter 150 and a pH meter 160 are fixedly installed on the tank body 100.

[0033] It should be noted that high-concentration hydrochloric acid enters the pickling chamber 110 from the two first liquid inlet pipes 130 on both sides, and water enters the pickling chamber 110 from the two second water inlet pipes 140 on both sides. By controlling the injection amount of hydrochloric acid and water, a pickling solution of a preset concentration can be obtained; The ultrasonic level meter 150 can monitor the liquid level of the pickling solution in the tank body 100 in real time. When the tank body 1 is taken out of the tank body 100 after pickling, part of the pickling solution adheres to the surface of the tank body 1, causing the liquid level of the pickling solution to drop. When the liquid level of the pickling solution is lower than the preset liquid level, the ultrasonic level meter 150 transmits an electrical signal to the external controller, and the controller controls the two second electric valves 131 to open for a certain period of time, and a proper amount of hydrochloric acid is simultaneously injected into the pickling chamber 110 through the first liquid inlet pipes 130 on both sides. The controller controls the two third electric valves 141 to open for a certain period of time, and a proper amount of water is simultaneously injected into the pickling chamber 110 through the second water inlet pipes 140 on both sides, ensuring that the liquid level of the pickling solution is within the preset liquid level range, and the concentration of the pickling solution will not decrease. Within this preset liquid level range, the tank body 1 can be completely immersed in the pickling solution; The pH meter 160 can monitor the pH value of the pickling solution in the tank 100 in real time. The pickling process of the tank 1 consumes hydrochloric acid in the pickling solution. When the pH value of the pickling solution increases and exceeds the preset pH range, it indicates that the concentration of the pickling solution is too low. The pH meter 160 transmits an electrical signal to the external controller, and the controller controls the two second electric valves 131 to open for a certain period of time. A proper amount of hydrochloric acid is simultaneously injected into the pickling chamber 110 through the first liquid inlet pipes 130 on both sides to ensure that the pH value of the pickling solution is within the preset pH range, thereby ensuring that the pickling effect of the pickling solution is good; By providing two first liquid inlet pipes 130 symmetrically distributed about the center line of the tank body 100 and two second water inlet pipes 140 symmetrically distributed about the center line of the tank body 100 , it is beneficial to quickly and evenly mix the pickling liquid and improve the pickling effect on the box body 1 .

[0034] Embodiment 6: As an optimization of Example 5, Figure 2-Figure 4 As shown, an aeration main pipe 610 is disposed outside the tank body 100 , and a plurality of aeration branch pipes 620 are connected to the inside of the aeration main pipe 610 . The plurality of aeration branch pipes 620 all extend into the pickling chamber 110 , and hot air is passed through the aeration main pipe 610 .

[0035] It should be noted that the hot air enters the aeration branch pipe 620 through the aeration main pipe 610 and finally enters the pickling liquid. The contact between the hot air and the pickling liquid will stir the pickling liquid, which is beneficial to improve the pickling effect of the pickling liquid on the box 1 and is beneficial to the uniform mixing of the pickling liquid. The contact between the hot air and the pickling liquid will also transfer heat to the pickling liquid (when the temperature of the pickling liquid is lower than the temperature of the hot air), thereby increasing the temperature of the pickling liquid and further improving the pickling effect and efficiency.

[0036] Embodiment 7: As an optimization of Example 6, Figure 4 and Figure 5As shown, the bottom inner wall of the trough body 100 is provided with a plurality of hole groups, each of which includes eight screw holes 170 . Four limiting pillars 180 are installed in the trough body 100 , and the limiting pillars 180 are fixedly connected to the bottom inner wall of the trough body 100 by bolts.

[0037] It should be noted that each limiting pillar 180 is fixed to the bottom inner wall of the trough body 100 by two bolts, and the bolts are passed through the limiting pillars 180 and the screw holes 170. Four limiting pillars 180 are installed at the screw holes 170 of the same hole group. The box body 1 is clamped by an external robotic arm and placed on the four limiting pillars 180 in the trough body 100. The four limiting pillars 180 are used to limit the box body 1 to prevent the box body 1 from shifting significantly during the pickling process, so that the subsequent robotic arm can take the box body 1 out of the trough body 100. The four limiting pillars 180 are installed at the eight screw holes 170 of another hole group by bolts, so that the box bodies 1 of different sizes can be limited, thereby improving the applicability of the two-phase circulation conversion cleaning system of the acid cleaning medium.

[0038] In this embodiment, a limiting groove 181 is opened on the top of the limiting pillar 180. After the box body 1 is placed, the three inner walls of the limiting groove 181 are respectively fitted with the three side faces at the corners of the box body 1. The four limiting pillars 180 cooperate together to limit the box body 1. Under the action of the box body 1's own gravity, the box body 1 will not fall out of the limiting groove 181.

[0039] Embodiment 8: As an optimization of Example 7, Figure 1 , Figure 3 , Figure 6 , Figure 7 and Figure 8 As shown, the acid cleaning medium two-phase circulation conversion cleaning system also includes an acid cleaning float 700, the acid cleaning float 700 is provided with a cavity 710, the outer surface of the acid cleaning float 700 is provided with a plurality of injection holes 720 connected to the cavity 710, the outer surface of the acid cleaning float 700 is provided with a plurality of pipe holes 730 connected to the cavity 710, and one end of the first liquid outlet pipe 400 extending into the acid cleaning cavity 110 is connected to a plurality of injection pipes 132, and the plurality of injection pipes 132 are each equipped with a first Four electric valves 133, the number of injection holes 720, through-tube holes 730 and injection pipes 132 is consistent, multiple injection pipes 132 extend into the cavity 710 from the multiple through-tube holes 730 respectively, and multiple injection pipes 132 extend from the outer surface of the pickling float 700 from the multiple injection holes 720 respectively. An air outlet pipe 800 connected to the inner cavity 330 is provided on the high-pressure tank 300, and the air outlet pipe 800 is connected to the first liquid outlet pipe 400, and a fifth electric valve 810 is installed on the air outlet pipe 800.

[0040] It should be noted that the box body 1 is placed upside down between the four limit pillars 180, the opening of the box body 1 faces downward, the pickling liquid inside the box body 1 flows slowly, and the pickling effect is relatively poor. The first electric valve 410 is opened, and the liquefied pickling liquid in the high-pressure tank 300 flows into the first liquid outlet pipe 400. At the same time, the fifth electric valve 810 is opened, and the gas in the high-pressure tank 300 enters the first liquid outlet pipe 400 through the gas outlet pipe 800. The pickling liquid and gas are mixed and flow into the multiple injection pipes 132 through the first liquid outlet pipe 400. When all the fourth electric valves 133 are closed, the pickling float 700 is suspended in the pickling liquid; The pickling float 700 is located in the housing 1. By controlling the opening and closing of the fourth electric valve 133 on each injection pipe 132, the pickling liquid and gas mixture are sprayed out from the injection port of the injection pipe 132, so that aeration effects in different directions can be achieved. In addition, due to the addition of liquefied pickling liquid during the aeration process, a stronger impact force can be provided, and the aeration effect is better, which greatly improves the pickling effect on the inner wall of the housing 1. By controlling the opening and closing of the fourth electric valve 133 on the injection pipe 132 in different directions, the position of the pickling float 700 can also be controlled to achieve a better pickling effect.

[0041] In this embodiment, the pickling float 700 is a cubic structure, and six injection holes 720, six through-tube holes 730 and six injection tubes 132 are provided. The six injection holes 720 are respectively located at the centers of the six surfaces of the pickling float 700, and the six through-tube holes 730 are located at the bottom surface of the pickling float 700, so as to control the pickling float 700 to perform auxiliary pickling on the inner wall of the box body 1; Exemplarily, when the pickling float 700 is controlled to perform auxiliary pickling on the top inner wall of the box body 1, the fourth electric valve 133 on the injection pipe 132 with the injection port facing downward is opened, and the pickling float 700 moves upward. When the pickling float 700 moves to an appropriate distance from the top inner wall of the box body 1, the fourth electric valve 133 on the injection pipe 132 with the injection port facing upward is opened, and the pickling liquid and gas mixture sprayed from the injection pipe 132 with the injection port facing upward impacts the top inner wall of the box body 1 to assist in pickling the top inner wall of the box body 1, and the pickling float 700 no longer moves upward, and then the fourth electric valve 133 on one of the other four injection pipes 132 is controlled to open, so that the pickling float 700 moves laterally, thereby controlling the pickling float 700 to perform auxiliary pickling on different positions of the top inner wall of the box body 1.

[0042] Embodiment 9: As an optimization of Example 8, Figure 1 and Fig. 9As shown, the two-phase circulation conversion cleaning system of the acid cleaning medium also includes a liquid suction pipe 910, a high-pressure pump 920 and a second liquid inlet pipe 930. The two ends of the liquid suction pipe 910 are respectively connected to the pickling chamber 110 and the liquid inlet of the high-pressure pump 920, and the two ends of the second liquid inlet pipe 930 are respectively connected to the inner cavity 330 and the liquid outlet of the high-pressure pump 920. A second one-way valve 931 is installed on the second liquid inlet pipe 930.

[0043] It should be noted that the amount of pickling liquid liquefied in the high-pressure tank 300 is relatively small. The pickling liquid in the tank body 100 can be pumped into the high-pressure tank 300 by the high-pressure pump 920 to ensure that there is sufficient pickling liquid in the high-pressure tank 300. The pickling liquid in the tank body 100 enters the inner cavity 330 of the high-pressure tank 300 via the suction pipe 910, the high-pressure pump 920 and the second liquid inlet pipe 930 in turn. There is sufficient pickling liquid in the high-pressure tank 300, and the injection pipe 132 can continuously inject the pickling liquid and gas mixture to ensure sufficient impact force and ensure that the auxiliary pickling effect of the pickling float 700 on the inner wall of the box body 1 is stable. By setting a second one-way valve 931, even if the high-pressure pump 920 stops working, the high-pressure gas in the high-pressure tank 300 will not be discharged through the second liquid inlet pipe 930.

[0044] In this embodiment, one end of the liquid suction pipe 910 is connected to the liquid inlet of the high-pressure pump 920 , and the other end of the liquid suction pipe 910 is introduced into the bottom of the pickling chamber 110 from the opening at the top of the tank body 100 .

[0045] Embodiment 10: A method for using an acidic cleaning medium two-phase circulation conversion cleaning system comprises the following steps: S1. Prepare pickling solution: start the ultrasonic level meter 150 and the pH meter 160, control the second electric valve 131 and the third electric valve 141 to be opened for a period of time, and a proper amount of high-concentration hydrochloric acid enters the pickling chamber 110 from the two first liquid inlet pipes 130 on both sides, and a proper amount of water enters the pickling chamber 110 from the two second water inlet pipes 140 on both sides, so as to obtain a pickling solution with a preset concentration and liquid level height; S2, mixed pickling liquid: hot air is passed into the aeration main pipe 610, and the hot air enters the pickling liquid through the aeration main pipe 610 and the aeration branch pipe 620; S3, start the air suction and pressurizing component 200: start the fan 220 and the air compressor 240 to make the air pressure in the high-pressure tank 300 reach a preset value; S4, injecting pickling liquid into the high-pressure tank 300: starting the high-pressure pump 920 to pump part of the pickling liquid in the tank body 100 into the high-pressure tank 300; S5, passing condensate: continuously passing condensate into the first water inlet pipe 510; S6, placing the box 1: controlling the external robot arm to place the box 1 into the limiting grooves 181 of the four limiting pillars 180; S7, assisting pickling of the inner wall of the box body 1: controlling the first electric valve 410 and the fifth electric valve 810 to open, and controlling the fourth electric valve 133 to open, so that the pickling float 700 moves and assists pickling of the inner wall of the box body 1; S8, taking out the box body 1: controlling the external robot arm to take out the pickled box body 1 from the tank body 100.

[0046] The embodiments of the invention are described above in conjunction with the accompanying drawings, but the present embodiment is not limited to the above-mentioned specific implementation modes, which are merely illustrative and not restrictive. Under the guidance of the present embodiment, ordinary technicians in this field can make many forms without departing from the purpose of the present embodiment and the scope of protection of the claims, all of which are within the protection of the present embodiment.

Claims

1. An acidic cleaning medium two-phase circulation conversion cleaning system, characterized in that: include: A tank body (100), the tank body (100) being provided with a pickling chamber (110), the tank body (100) being equipped with a suction and pressurizing assembly (200), the suction and pressurizing assembly (200) being connected to a high-pressure tank (300), the high-pressure tank (300) being connected to a first liquid outlet pipe (400), the first liquid outlet pipe (400) being connected to the pickling chamber (110), and a first electric valve (410) being installed on the first liquid outlet pipe (400).

2. The acidic cleaning medium two-phase circulation conversion cleaning system according to claim 1 is characterized in that: The high-pressure tank (300) comprises an inner cavity (330) and an outer cavity (340), the outer cavity (340) being located outside the inner cavity (330), the first liquid outlet pipe (400) being connected to the bottom of the inner cavity (330), condensed water flowing in the outer cavity (340), the bottom of the outer cavity (340) being connected to a first water inlet pipe (510), and the top of the outer cavity (340) being connected to a first water outlet pipe (520).

3. The acidic cleaning medium two-phase circulation conversion cleaning system according to claim 2 is characterized in that: The air suction and pressurizing assembly (200) comprises a mounting frame (210) mounted on a tank body (100); a fan (220) is fixedly mounted on the mounting frame (210); the fan (220) is connected to a pipeline unit (230); the pipeline unit (230) is connected to an air compressor (240); the air compressor (240) is connected to the inner cavity (330) via a first connecting pipe (250); a first one-way valve (251) is mounted on the first connecting pipe (250).

4. The acidic cleaning medium two-phase circulation conversion cleaning system according to claim 3 is characterized in that: The mounting frame (210) is hingedly connected to the tank body (100); the pipeline unit (230) comprises a first transfer tube (231) connected to the fan (220), a corrugated hose (232) connected to the first transfer tube (231), and a second transfer tube (233) connected to the corrugated hose (232); the first transfer tube (231) is fixedly connected to the mounting frame (210); a fixing plate (120) is fixedly mounted on the tank body (100); the corrugated hose (232) is fixedly sleeved to the fixing plate (120); the material of the corrugated hose (232) is 316L stainless steel; and the second transfer tube (233) is connected to the air compressor (240).

5. The acidic cleaning medium two-phase circulation conversion cleaning system according to claim 4, characterized in that: First liquid inlet pipes (130) in communication with the pickling chamber (110) are arranged on both sides of the tank body (100), and second electric valves (131) are installed on the two first liquid inlet pipes (130). Second water inlet pipes (140) in communication with the pickling chamber (110) are arranged on both sides of the tank body (100), and third electric valves (141) are installed on the two second water inlet pipes (140). An ultrasonic liquid level meter (150) and a pH meter (160) are fixedly installed on the tank body (100).

6. The acidic cleaning medium two-phase circulation conversion cleaning system according to claim 5, characterized in that: An aeration main pipe (610) is arranged outside the tank body (100), and a plurality of aeration branch pipes (620) are connected inside the aeration main pipe (610). The plurality of aeration branch pipes (620) all extend into the pickling chamber (110), and hot air is passed through the aeration main pipe (610).

7. The acidic cleaning medium two-phase circulation conversion cleaning system according to claim 6, characterized in that: The bottom inner wall of the trough body (100) is provided with a plurality of hole groups, each of the hole groups comprises eight screw holes (170), four limiting pillars (180) are installed in the trough body (100), and the limiting pillars (180) are fixedly connected to the bottom inner wall of the trough body (100) by bolts.

8. The acidic cleaning medium two-phase circulation conversion cleaning system according to claim 7, characterized in that: The acid cleaning medium two-phase circulation conversion cleaning system also includes a pickling float (700), wherein a cavity (710) is arranged inside the pickling float (700), a plurality of injection holes (720) in communication with the cavity (710) are provided on the outer surface of the pickling float (700), a plurality of pipe penetration holes (730) in communication with the cavity (710) are provided on the outer surface of the pickling float (700), and a plurality of injection pipes (132) are connected to one end of the first liquid outlet pipe (400) extending into the pickling cavity (110), and a fourth electric valve (133) is installed on each of the plurality of injection pipes (132). The number of the injection holes (720), the tube-through holes (730) and the injection pipes (132) is the same; the plurality of injection pipes (132) extend from the plurality of tube-through holes (730) into the cavity (710), and the plurality of injection pipes (132) extend from the plurality of injection holes (720) to the outer surface of the pickling float (700); an air outlet pipe (800) communicating with the inner cavity (330) is provided on the high-pressure tank (300), and the air outlet pipe (800) is communicated with the first liquid outlet pipe (400); and a fifth electric valve (810) is installed on the air outlet pipe (800).

9. The acidic cleaning medium two-phase circulation conversion cleaning system according to claim 8, characterized in that: The acid cleaning medium two-phase circulation conversion cleaning system further comprises a liquid suction pipe (910), a high-pressure pump (920) and a second liquid inlet pipe (930); the two ends of the liquid suction pipe (910) are respectively connected to the pickling chamber (110) and the liquid inlet of the high-pressure pump (920); the two ends of the second liquid inlet pipe (930) are respectively connected to the inner chamber (330) and the liquid outlet of the high-pressure pump (920); and a second one-way valve (931) is installed on the second liquid inlet pipe (930).

10. A method for using an acidic cleaning medium two-phase circulation conversion cleaning system, using the acidic cleaning medium two-phase circulation conversion cleaning system according to claim 9, characterized in that: The following steps are involved: S1. preparing pickling liquid: starting the ultrasonic liquid level meter (150) and the pH meter (160), controlling the second electric valve (131) and the third electric valve (141) to be opened for a period of time respectively, allowing an appropriate amount of high-concentration hydrochloric acid to enter the pickling chamber (110) from the two first liquid inlet pipes (130) on both sides, and allowing an appropriate amount of water to enter the pickling chamber (110) from the two second water inlet pipes (140) on both sides, thereby obtaining a pickling liquid with a preset concentration and liquid level height; S2, mixing the pickling liquid: passing hot air into the aeration main pipe (610), and the hot air enters the pickling liquid through the aeration main pipe (610) and the aeration branch pipe (620); S3, starting the air suction and pressurizing component (200): starting the fan (220) and the air compressor (240) to make the air pressure in the high-pressure tank (300) reach a preset value; S4, injecting pickling liquid into the high-pressure tank (300): starting the high-pressure pump (920) to pump part of the pickling liquid in the tank body (100) into the high-pressure tank (300); S5, passing condensate: continuously passing condensate into the first water inlet pipe (510); S6, placing the box (1): controlling the external mechanical arm to place the box (1) into the limiting grooves (181) of the four limiting pillars (180); S7, assisting pickling of the inner wall of the box body (1): controlling the first electric valve (410) and the fifth electric valve (810) to open, and controlling the fourth electric valve (133) to open, so that the pickling float (700) moves and assists pickling of the inner wall of the box body (1); S8, taking out the box body (1): controlling the external robot arm to take out the pickled box body (1) from the tank body (100).

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