Pipe cleaning control method

Abstract

The invention relates to the technical field of pipe cleaning, and discloses a pipe cleaning control method which specifically comprises the following steps: a conveying mechanism conveys pipes into an ultrasonic cleaning tank one by one for ultrasonic cleaning; the conveying mechanism conveys the pipes in the ultrasonic cleaning tank to the discharging end one by one, and when the discharging sensor detects the pipes, the blowing mechanism blows water to the pipes; the conveying mechanism is used for conveying the water-blown pipes to the rinsing tank one by one for rinsing; the conveying mechanism conveys the pipes in the rinsing tank to the discharging end one by one, and when the discharging sensor detects the pipes, the blowing mechanism blows water to the pipes; the conveying mechanism conveys the pipes subjected to water blowing into a passivation tank one by one for passivation; the conveying mechanism conveys the pipes in the passivation tank to the discharging end one by one, when the discharging sensor detects the pipes, the blowing mechanism conducts water blowing action on the pipes, and after the water blowing action is completed, the pipes are conveyed to the next working procedure. The problem that a plurality of pipes deform due to extrusion and collision is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe cleaning, and particularly relates to a pipe cleaning control method. Background Art

[0002] After copper heat exchange tubes are grooved, there will be some cutting fluid residues inside the copper heat exchange tubes. The residual cutting fluid will not only corrode the copper heat exchange tubes and affect the service life of the heat exchange tubes, but also form a film or other deposits on the inner wall of the tubes, reducing the heat transfer efficiency of the heat exchange tubes. Therefore, it is necessary to clean the cutting fluid inside the heat exchange tubes.

[0003] In the field of pipe cleaning, especially when cleaning heat exchange tubes, the existing technical solutions usually clean multiple pipes together in a cleaning tank, control the water and transfer them as a whole. Among them, during the cleaning and transportation of multiple pipes, it is easy to cause extrusion, impact, etc. between the pipes, which is likely to cause defects such as pipe deformation and affect the quality of the pipes. Summary of the Invention

[0004] The present invention provides a pipe cleaning control method for solving the existing technical problems.

[0005] The technical solution for solving the above technical problems of the present invention is as follows: A pipe cleaning control method includes an ultrasonic cleaning tank, a rinsing tank, a passivation tank, a plurality of conveying mechanisms, and a plurality of air blowing mechanisms. The conveying mechanism is used to convey pipes into the tank one by one, and specifically includes the following steps: S1: Determine whether the number of pipes in the ultrasonic cleaning tank is less than the set number N1 of the ultrasonic cleaning tank. If so, the conveying mechanism conveys the pipes into the ultrasonic cleaning tank one by one for ultrasonic cleaning; if not, stop conveying pipes into the ultrasonic cleaning tank; S2: The conveying mechanism conveys the pipes in the ultrasonic cleaning tank to the discharge end of the ultrasonic cleaning tank one by one. When the discharge sensor of the ultrasonic cleaning tank detects a pipe, the conveying mechanism stops conveying the pipe, and the air blowing mechanism performs a water blowing action on the pipe; S3: The conveying mechanism conveys the pipes that have been blown with water into the rinsing tank for rinsing one by one; S4: The conveying mechanism conveys the pipes in the rinsing tank to the discharge end of the rinsing tank one by one. When the discharge sensor of the rinsing tank detects a pipe, the conveying mechanism stops conveying the pipe, and the air blowing mechanism performs a water blowing action on the pipe; S5: The conveying mechanism is restarted to convey the pipes that have been blown with water into the passivation tank one by one; S6: The conveying mechanism conveys the pipes in the passivation tank to the discharge end of the passivation tank one by one. When the discharge sensor of the passivation tank detects a pipe, the conveying mechanism stops conveying, and the air blowing mechanism performs a water blowing action on the pipe. After the water blowing action is completed, the pipe is conveyed to the next process.

[0006] On the basis of the above technical solutions, the present invention can also be improved as follows: Preferably, in step S1, when the high-level sensor in the ultrasonic cleaning tank detects that the liquid level in the ultrasonic cleaning tank reaches the set liquid level and the actual temperature Ta in the tank < the set temperature Tb, turn on heater 1 and heater 2; when the actual temperature Ta > the set temperature Tc, stop heating; When the actual temperature drops to Td < Ta < Te, after a delay of tb seconds, turn on heater 1; When the actual temperature Ta < the set temperature Td, after a delay of ta seconds, turn on heater 1 and heater 2 again, where Tb < Td < Te < Tc.

[0007] Preferably, in step S1, when there are pipes in the ultrasonic cleaning tank, turn on ultrasonic generators in different segments according to the pipe length; when there are no pipes in the ultrasonic cleaning tank, after a delay of tc seconds, the ultrasonic generators stop working.

[0008] Preferably, in step S1, when the number of pipes in the ultrasonic cleaning tank < the set number N1 of the ultrasonic cleaning tank, and the number of pipes C2 at the buffer loading position > the number of pipe inlets C1 of the ultrasonic cleaning tank, the conveying mechanism conveys pipes into the ultrasonic cleaning tank one by one, and at the same time, the first inlet sensor of the ultrasonic cleaning tank starts counting; When the number of pipes in the ultrasonic cleaning tank = the set number N1 of the ultrasonic cleaning tank, the conveying mechanism stops conveying pipes into the ultrasonic cleaning tank; When the number of pipe inlets C1 of the ultrasonic cleaning tank = the number of pipes C2 at the buffer loading position, the conveying mechanism stops conveying pipes into the ultrasonic cleaning tank.

[0009] Preferably, step S3 includes a first rinsing tank, a second rinsing tank, and a third rinsing tank arranged in sequence. The pipes in the ultrasonic cleaning tank are conveyed to the first rinsing tank, and the pipes in the third rinsing tank are conveyed to the passivation tank.

[0010] Preferably, in step S2, when the number of pipes in the ultrasonic cleaning tank > 0, and the number of pipes in the first rinsing tank < the set number N2 of the rinsing tank: If the remaining number of pipes to be cleaned < the set number N1 of the ultrasonic cleaning tank, and the number of pipes C2 at the buffer loading position = the number of pipe inlets C1 of the ultrasonic cleaning tank, after a delay of tc seconds, the conveying mechanism starts to convey the pipes in the ultrasonic cleaning tank to the first rinsing tank; If the remaining quantity of the pipes to be cleaned ≥ the set quantity N1 of the ultrasonic cleaning tank: When the quantity of pipes in the ultrasonic cleaning tank = the set quantity N1 of the ultrasonic cleaning tank, the conveying mechanism starts to convey the pipes in the ultrasonic cleaning tank to the first rinsing tank.

[0011] Preferably, in step S3, when the quantity of pipes in the first rinsing tank < the set quantity N2 of the rinsing tank, the quantity of pipes in the second rinsing tank < the set quantity N2 of the rinsing tank, and the pipe feeding quantity C1 in the ultrasonic cleaning tank = the pipe feeding count C3 in the first rinsing tank, after a delay of td seconds, the conveying mechanism conveys the pipes from the first rinsing tank to the second rinsing tank; When the quantity of pipes in the first rinsing tank = the set quantity N2 of the rinsing tank and the quantity of pipes in the second rinsing tank < the set quantity N2 of the rinsing tank, the conveying mechanism conveys the pipes from the first rinsing tank to the second rinsing tank; When the quantity of pipes in the second rinsing tank = the set quantity N2 of the rinsing tank, or the pipe feeding count C3 in the first rinsing tank = the pipe feeding count C4 in the second rinsing tank, stop conveying pipes to the second rinsing tank.

[0012] Preferably, in step S6, when the quantity of pipes in the passivation tank > 0 and pipes are needed subsequently: When the pipe feeding count C5 in the third rinsing tank = the pipe feeding count C6 in the passivation tank: If the pipe feeding count C6 in the passivation tank > the set quantity N2 of the rinsing tank, the conveying mechanism conveys the pipes to the next process; if the pipe feeding count C6 in the passivation tank ≤ the set quantity N2 of the rinsing tank, after a delay of te seconds, the conveying mechanism conveys the pipes to the next process; When the pipe feeding count C5 in the third rinsing tank ≠ the pipe feeding count C6 in the passivation tank and the quantity of pipes in the passivation tank = the set quantity N2 of the rinsing tank, the conveying mechanism conveys the pipes to the next process.

[0013] Preferably, in step S6, after the air - blowing mechanism completes the water - blowing action, the conveying mechanism continues to convey the pipes to the output end of the passivation tank. When the pipe feeding count C6 in the passivation tank = the pipe discharging count C7 in the passivation tank, the conveying mechanism stops conveying the pipes.

[0014] The beneficial effects of the present invention are as follows: The continuous - flow automatic control process of cleaning, rinsing, passivating and water - blowing for single pipes is realized through the conveying mechanism, solving the problem that pipes are deformed due to extrusion and impact between multiple pipes in the prior art. By setting the air - blowing mechanism, the cutting fluid in the pipes is blown out, avoiding the situation that the cutting fluid corrodes the pipes and even affects the heat - exchange efficiency of the pipes; The present invention can realize the automatic switching of pipes of different models, realize the continuous cleaning of pipes, and improve the cleaning efficiency of pipes. Description of the Drawings

[0015] Figure 1 Schematic diagram of the pipe cleaning device of the present invention; Figure 2 Partial schematic diagram of the conveying mechanism and the air blowing mechanism of the present invention; Figure 3 Front view of the conveying mechanism of the present invention when hooking the pipe; Figure 4 Schematic diagram of the conveying mechanism of the present invention; Figure 5 Schematic diagram of the air blowing mechanism of the present invention.

[0016] The reference numerals are recorded as follows: 100, ultrasonic cleaning tank; 200, first rinsing tank; 300, second rinsing tank; 400, third rinsing tank; 500, passivation tank; 600, conveying mechanism; 601, support plate; 602, driving sprocket; 603, driving motor; 604, driven sprocket; 605, chain; 606, pipe hooking groove; 607, transmission gear; 608, support rod; 609, pipe blocking column; 700, air blowing mechanism; 701, support seat; 702, pushing cylinder; 703, connecting plate; 704, nozzle. Detailed implementation manners

[0017] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention. It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence.

[0018] The orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0019] Such as Figures 1 to 5As shown in the figure, the present invention discloses a pipe cleaning control method, which uses a pipe cleaning device. The pipe cleaning device includes a plurality of tanks, a plurality of conveying mechanisms 600, and a plurality of air blowing mechanisms 700. Specifically, the plurality of tanks include an ultrasonic cleaning tank 100, a rinsing tank, and a passivation tank 500. The conveying mechanisms 600 are arranged between adjacent tanks. The conveying mechanisms 600 are used to convey pipes one by one into the tanks, and there are a plurality of conveying mechanisms 600 arranged along the tanks to ensure stable conveyance of the pipes. The air blowing mechanisms 700 are arranged at the discharge ends of the tanks and are used to blow out the cleaning liquid in the pipes to ensure the service life of the pipes and the heat exchange effect.

[0020] Among them, the conveying mechanism 600 includes a support plate 601, a driving motor 603, and a support rod 608. The support plate 601 is installed between adjacent tanks. An active sprocket 602 and a driven sprocket 604 are installed on the support plate 601. The driving motor 603 is connected to a transmission gear 607 through a transmission chain. The transmission gear 607 is coaxially arranged with the active sprocket 602. The active sprocket 602 is connected to a plurality of driven sprockets 604 through a chain 605. A plurality of hook pipe grooves 606 are installed on the chain 605. The hook pipe grooves 606 are used to hook single pipes. Both ends of the support rod 608 are installed on two adjacent support plates 601, and the support rod 608 is located inside the tank. The support rod 608 is inclined downward along the conveying direction of the pipe. The pipe blocking column 609 is installed on the support rod 608. The pipe blocking column 609 is used to make a single pipe within the hooking range of the hook pipe groove 606. A plurality of support rods 608 and pipe blocking columns 609 are arranged along the length direction of the tank to ensure stable support of the pipes, realize conveying of the pipes one by one, avoid the situation of pipe extrusion and deformation, and ensure the quality and service life of the pipes.

[0021] As Figure 5 shown in the figure, the air blowing mechanism 700 includes a pushing cylinder 702 and a nozzle 704. The pushing cylinder 702 is installed on a support seat 701. The support seat 701 and a discharge sensor for detecting the pipe are both installed at the discharge end of the tank. The output end of the pushing cylinder 702 is installed with a connecting plate 703. The connecting plate 703 is installed with a nozzle 704. The nozzle 704 is used to blow out the cleaning liquid in the pipe. The position of the nozzle 704 corresponds to the position of the discharge sensor.

[0022] During use, under the action of the driving motor 603, the hook tube groove 606 hooks a single pipe from the pipe blocking column 609 and drives the pipe to be conveyed from bottom to top. When the pipe is raised to a certain position, the discharge sensor detects the pipe and transmits a signal to the driving motor 603. The driving motor 603 controls the hook tube groove 606 to stop moving. Since the U-shaped opening of the hook tube groove 606 faces upward and the long side of the hook tube groove 606 is located on the outside at this time, that is, the long side of the hook tube groove 606 is located on the side away from the chain 605, the pipe can be held in the hook tube groove 606 and will not fall out through the long side. The pushing cylinder 702 pushes the blowing nozzle 704 towards the pipe by a certain distance, so that the blowing nozzle 704 is inserted into the pipe for blowing. After a certain delay time, the pushing cylinder 702 drives the blowing nozzle 704 to retract, completing the water blowing work. By blowing out the cleaning liquid inside the pipe, the cleanliness of the inside of the pipe is ensured, avoiding the situation that the residual cleaning liquid in the pipe affects the heat exchange effect of the pipe or corrodes the pipe, and ensuring the service life of the pipe.

[0023] In order to further rinse the pipes cleanly, there are multiple rinsing tanks. In this embodiment, there are three rinsing tanks, including a first rinsing tank 200, a second rinsing tank 300, and a third rinsing tank 400 arranged in sequence. The pipes in the ultrasonic cleaning tank 100 are conveyed to the first rinsing tank 200, and the pipes in the third rinsing tank 400 are conveyed to the passivation tank 500.

[0024] The cleaning control method specifically includes the following steps: Step S1: Determine whether the number of pipes in the ultrasonic cleaning tank 100 is less than the set number N1 of the ultrasonic cleaning tank 100: When the number of pipes in the ultrasonic cleaning tank 100 < the set number N1 of the ultrasonic cleaning tank 100, and the number of pipes C2 at the buffer loading position of the ultrasonic cleaning tank 100 > the number of pipes C1 fed into the ultrasonic cleaning tank 100, the conveying mechanism 600 conveys pipes into the ultrasonic cleaning tank 100 one by one, and at the same time, the first feeding sensor of the ultrasonic cleaning tank 100 starts counting; If not, for example, when the number of pipes in the ultrasonic cleaning tank 100 = the set number N1 of the ultrasonic cleaning tank 100, the conveying mechanism 600 stops conveying pipes into the ultrasonic cleaning tank 100; Or, when the number of pipes in the ultrasonic cleaning tank 100 < the set number N1 of the ultrasonic cleaning tank 100, but the number of pipes C1 fed into the ultrasonic cleaning tank 100 = the number of pipes C2 at the buffer loading position, at this time, it means that all the pipes in this batch have been conveyed into the ultrasonic cleaning tank 100. At this time, the conveying mechanism 600 also stops conveying pipes into the ultrasonic cleaning tank 100.

[0025] Among them, the number of pipes in the ultrasonic cleaning tank 100 = the number of pipes fed into the ultrasonic cleaning tank 100, C1 - the count of the discharge sensor in the ultrasonic cleaning tank 100.

[0026] When the high-level sensor in the ultrasonic cleaning tank 100 detects that the liquid level in the ultrasonic cleaning tank 100 reaches the set liquid level and the actual temperature Ta in the tank of the ultrasonic cleaning tank 100 < the set temperature Tb, turn on Heater 1 and Heater 2; when the actual temperature Ta > the set temperature Tc, stop heating; When the actual temperature drops to Td < Ta < Te, after a delay of tb seconds, turn on Heater 1; When the actual temperature drops to: the actual temperature Ta < the set temperature Td, after a delay of ta seconds, turn on Heater 1 and Heater 2 again. Heater 1 and Heater 2 adopt existing technologies to heat the temperature of the cleaning liquid in the ultrasonic cleaning tank 100, improving the cleaning efficiency and cleaning ability.

[0027] Specifically, Tb < Td < Te < Tc. For example, when the actual temperature Ta in the ultrasonic cleaning tank 100 < 35°C at startup, turn on Heater 1 and Heater 2; when heated to the actual temperature Ta > 50°C, stop heating; when the temperature drops to between 42°C and 45°C, after a delay of several seconds, turn on Heater 1, and when the actual temperature Ta drops below 42°C, turn on Heater 1 and Heater 2 after a delay, so as to control the temperature in the ultrasonic cleaning tank 100 within the set range and ensure the cleaning effect of the pipes.

[0028] Among them, when there are pipes in the ultrasonic cleaning tank 100, turn on ultrasonic generators in different segments according to the pipe length. The ultrasonic generators adopt existing technologies; when there are no pipes in the ultrasonic cleaning tank 100, after a delay of Sc seconds, the ultrasonic generators stop working. Ultrasonic cleaning can complete more thorough cleaning work in a shorter time, improving the cleaning effect on pipes.

[0029] Step S2: The conveying mechanism 600 conveys the pipes in the ultrasonic cleaning tank 100 one by one to the discharge end of the ultrasonic cleaning tank 100. When the discharge sensor of the ultrasonic cleaning tank 100 detects a pipe, the conveying mechanism 600 stops conveying the pipe, and the blowing mechanism 700 performs a water-blowing action on the pipe. Specifically: Step S21: When the number of pipes in the ultrasonic cleaning tank 100 > 0 and the number of pipes in the first rinsing tank 200 < the set number N2 of the rinsing tank: If the remaining quantity of the pipes to be cleaned < the set quantity N1 of the ultrasonic cleaning tank 100, and the quantity of pipes C2 at the buffer loading position = the quantity of pipes C1 fed into the ultrasonic cleaning tank 100, it indicates that all the pipes of this batch have been transported into the ultrasonic cleaning tank 100. After a delay of tc seconds (this time can be set), the conveying mechanism 600 between the ultrasonic cleaning tank 100 and the first rinsing tank 200 is activated, and starts to transport the pipes in the ultrasonic cleaning tank 100 to the first rinsing tank 200; If the remaining quantity of the pipes to be cleaned ≥ the set quantity N1 of the ultrasonic cleaning tank 100: When the quantity of pipes in the ultrasonic cleaning tank 100 = the set quantity N1 of the ultrasonic cleaning tank 100, it indicates that the ultrasonic cleaning tank 100 is cleaning the pipes of this batch, and the conveying mechanism 600 starts to transport the pipes in the ultrasonic cleaning tank 100 to the first rinsing tank 200.

[0030] Step S22: The conveying mechanism 600 transports the pipes in the ultrasonic cleaning tank 100 one by one to the discharge end of the ultrasonic cleaning tank 100, that is, transports the pipes to the first rinsing tank 200. When the discharge sensor of the ultrasonic cleaning tank 100 detects a pipe, the conveying mechanism 600 stops transporting the pipe, and the air blowing mechanism 700 performs a water blowing action on the pipe; the air blowing mechanism 700 blows out the cleaning liquid in the pipe to avoid the situation that the cleaning liquid corrodes the pipe and even affects the heat exchange effect of the pipe.

[0031] After the water blowing action is completed, the quantity of pipes in the ultrasonic cleaning tank 100 is judged again: If the quantity of pipes in the ultrasonic cleaning tank 100 = 0, and the quantity of pipes in the first rinsing tank 200 < the set quantity N2 of the rinsing tank, the conveying mechanism 600 continues to transport the water - blown pipes one by one to the first rinsing tank 200 for rinsing; If the quantity of pipes in the ultrasonic cleaning tank 100 > 0, and the quantity of pipes in the first rinsing tank 200 < the set quantity N2 of the rinsing tank, then step S21 is executed; Step S3: The conveying mechanism 600 transports the water - blown pipes one by one to the rinsing tank for rinsing. Among them, the cleaning liquid uses an alkaline cleaning liquid to ensure the rinsing effect on the pipes; When the pipe inlet count C3 of the first rinsing tank 200 < the pipe inlet quantity C1 of the ultrasonic cleaning tank 100, it indicates that there are still pipes of this batch in the ultrasonic cleaning tank 100, and then step S22 is continued to be executed, and so on until all the pipes of this batch are completed.

[0032] When the pipe inlet count C3 of the first rinsing tank 200 = the pipe inlet quantity C1 of the ultrasonic cleaning tank 100, it indicates that all the pipes of this batch have been transported into the first rinsing tank 200, and the conveying mechanism 600 stops transporting; Step S31: The pipe is conveyed from the first rinsing tank 200 to the second rinsing tank 300; When the number of pipes in the first rinsing tank 200 < the set number N2 of the rinsing tank, the number of pipes in the second rinsing tank 300 < the set number N2 of the rinsing tank, and the pipe feeding quantity C1 of the ultrasonic cleaning tank 100 = the pipe feeding count C3 in the first rinsing tank 200, it indicates that the remaining pipes of this batch are being rinsed in the first rinsing tank 200, and the remaining number of pipes is less than the set number N2 of the rinsing tank. After a delay of td seconds, the conveying mechanism 600 conveys the pipes from the first rinsing tank 200 to the second rinsing tank 300; When the number of pipes in the first rinsing tank 200 = the set number N2 of the rinsing tank and the number of pipes in the second rinsing tank 300 < the set number N2 of the rinsing tank, the conveying mechanism 600 conveys the pipes from the first rinsing tank 200 to the second rinsing tank 300, indicating that the pipes of this batch are being rinsed in a cycle; When the number of pipes in the second rinsing tank 300 = the set number N2 of the rinsing tank, or when the pipe feeding count C3 of the first rinsing tank 200 = the pipe feeding count C4 of the second rinsing tank 300, stop conveying the pipes to the second rinsing tank 300.

[0033] Step S32: The pipe is conveyed from the second rinsing tank 300 to the third rinsing tank 400; When the number of pipes in the second rinsing tank 300 < the set number N2 of the rinsing tank, the number of pipes in the third rinsing tank 400 < the set number N2 of the rinsing tank, and the pipe feeding count C4 of the second rinsing tank 300 = the pipe feeding count C3 of the first rinsing tank 200, after a delay of Te seconds, the conveying mechanism 600 between the second rinsing tank 300 and the third rinsing tank 400 conveys the pipes in the second rinsing tank 300 to the third rinsing tank 400; When the number of pipes in the second rinsing tank 300 = the set number N2 of the rinsing tank and the number of pipes in the third rinsing tank 400 < the set number N2 of the rinsing tank, the conveying mechanism 600 between the second rinsing tank 300 and the third rinsing tank 400 conveys the pipes in the second rinsing tank 300 to the third rinsing tank 400.

[0034] Among them, when the number of pipes in the third rinsing tank 400 = the set number N2 of the rinsing tank, or when the pipe feeding count C4 of the second rinsing tank 300 = the pipe feeding count C5 of the third rinsing tank 400, the conveying mechanism 600 stops conveying the pipes to the third rinsing tank 400; Step S4: The conveying mechanism 600 conveys the pipes in the rinsing tank one by one to the discharge end of the rinsing tank. When the discharge sensor of the rinsing tank detects the pipe, the conveying mechanism 600 stops conveying the pipe, and the air blowing mechanism 700 performs a water blowing action on the pipe. Specifically: Step S41: The conveying mechanism 600 conveys the pipes in the rinsing tank to the discharge end of the rinsing tank one by one; When the number of pipes in the passivation tank 500 < the set number N2 of the rinsing tank and the number of pipes in the third rinsing tank 400 > 0: If the number of pipes in the third rinsing tank 400 = the set number N2 of the rinsing tank, the conveying mechanism 600 between the third rinsing tank 400 and the passivation tank 500 starts to convey the pipes to the passivation tank 500; When the number of pipes in the third rinsing tank 400 < the set number N2 of the rinsing tank and the pipe inlet count C4 of the second rinsing tank 300 = the pipe inlet count C5 of the third rinsing tank 400, it indicates that the number of pipes in this batch is less than the set number N2 of the rinsing tank or the number of remaining pipes to be cleaned is less than the set number N2 of the rinsing tank. After a delay of Te seconds, the conveying mechanism 600 between the third rinsing tank 400 and the passivation tank 500 starts to convey the pipes to the passivation tank 500.

[0035] Step S42: When the discharge sensor of the rinsing tank detects a pipe, the conveying mechanism 600 stops conveying the pipe, and the air blowing mechanism 700 performs a water blowing action on the pipe. The air blowing mechanism 700 blows out the cleaning liquid in the pipe to avoid corroding the pipe or affecting the heat exchange efficiency of the pipe; After the air blowing mechanism 700 completes the water blowing action, if the number of pipes in the third rinsing tank 400 ≠ 0 and the number of pipes in the passivation tank 500 < the set number N2 of the rinsing tank, then continue to execute Step S41; If the number of pipes in the third rinsing tank 400 = 0 and the number of pipes in the passivation tank 500 < the set number N2 of the rinsing tank, the conveying mechanism 600 continues to convey the pipes to the passivation tank 500.

[0036] Step S5: The conveying mechanism 600 starts again to convey the water - blown pipes to the passivation tank 500 one by one; When the pipe inlet count C5 of the third rinsing tank 400 = the pipe inlet count C6 of the passivation tank 500, stop conveying the pipes to the passivation tank 500, otherwise continue to execute Step S42, and so on until all the pipes in this batch are completed.

[0037] Step S6: Convey the pipes in the passivation tank 500 to the next process; Step S61: When the number of pipes in the passivation tank 500 > 0 and the subsequent process is ready and requires pipes: When the pipe feeding count C5 of the third rinsing tank 400 = the pipe feeding count C6 of the passivation tank 500: If the pipe feeding count C6 of the passivation tank 500 > the set quantity N2 of the rinsing tank, the conveying mechanism 600 conveys the pipes to the next process; if the pipe feeding count C6 of the passivation tank 500 ≤ the set quantity N2 of the rinsing tank, after a delay of te seconds, the conveying mechanism 600 conveys the pipes to the next process; When the pipe feeding count C5 of the third rinsing tank 400 ≠ the pipe feeding count C6 of the passivation tank 500 and the number of pipes in the passivation tank 500 = the set quantity N2 of the rinsing tank, the conveying mechanism 600 conveys the pipes to the next process.

[0038] Step S62: The conveying mechanism 600 conveys the pipes in the passivation tank 500 one by one to the discharge end of the passivation tank 500. When the discharge sensor of the passivation tank 500 detects a pipe, the conveying mechanism 600 stops conveying, and the air blowing mechanism 700 performs a water blowing action on the pipe. The air blowing mechanism 700 blows out the cleaning liquid in the pipe to ensure the pipe life and heat exchange effect. After the water blowing action is completed, if it is determined that the number of pipes in the passivation tank 500 = 0 and the subsequent process is ready to receive pipes, the conveying mechanism 600 is started again to convey the pipes to the next process; if there are pipes in the passivation tank 500, step S61 is continued. After the air blowing mechanism 700 completes the water blowing action, the conveying mechanism 600 continues to convey the pipes to the output end of the passivation tank 500. When the pipe feeding count C6 of the passivation tank 500 = the pipe discharge count C7 of the passivation tank 500, it indicates that all the pipes have been cleaned, and the conveying mechanism 600 stops conveying the pipes.

[0039] Switch the pipe batch: When the pipe feeding count C3 of the first rinsing tank 200 = the pipe feeding quantity C1 of the ultrasonic cleaning tank 100, it indicates that all the pipes of this batch have been conveyed to the rinsing tank. The signal is transmitted to the host computer. After the host computer confirms, it issues the information of the second batch of pipes, confirms the signal and clears the quantity C2 of the pipes at the buffer loading position of the previous batch, vacating a cleaning station to avoid the situation of mixed pipes. When there is a pipe at this buffer loading position, the ultrasonic cleaning tank 100 starts to work. After executing all the pipes of the second batch according to the above logic, different batches of pipes are cleaned cyclically in this way, improving the pipe cleaning efficiency and avoiding the situation of pipe stacking and deformation, and ensuring the pipe quality.

[0040] When the number of pipes to be cleaned in this batch is less than the set cleaning quantity, or the remaining number of pipes to be cleaned in this batch is less than the set cleaning quantity, switch the pipe batch: the number of pipes in the ultrasonic cleaning tank 100 < the set quantity N1 of the ultrasonic cleaning tank 100, for a continuous Tf seconds. If there are still no pipes at the feeding end of the ultrasonic cleaning tank 100, directly jump to the next step. The conveying mechanism 600 is started to convey the pipes in the ultrasonic cleaning tank 100 to the next process until there are pipes at the buffer loading position, then this condition is released and the normal process is restored.

[0041] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A pipe cleaning control method, comprising an ultrasonic cleaning tank, a rinsing tank, a passivation tank, a plurality of conveying mechanisms and a plurality of blowing mechanisms, characterized in that: The specific steps include: S1: Determine whether the number of pipes in the ultrasonic cleaning tank is less than the set number N1 of the ultrasonic cleaning tank. If so, the conveying mechanism conveys the pipes one by one into the ultrasonic cleaning tank for ultrasonic cleaning; if not, stop conveying the pipes into the ultrasonic cleaning tank; S2: the conveying mechanism conveys the pipes in the ultrasonic cleaning tank to the discharge end of the ultrasonic cleaning tank one by one. When the discharge sensor of the ultrasonic cleaning tank detects the pipes, the conveying mechanism stops conveying the pipes, and the blowing mechanism blows water to the pipes; S3: The conveying mechanism conveys the water-blown pipes one by one to the rinsing tank for rinsing; S4: The conveying mechanism conveys the pipes in the rinsing tank to the discharge end of the rinsing tank one by one. When the discharge sensor of the rinsing tank detects the pipes, the conveying mechanism stops conveying the pipes, and the blowing mechanism blows water to the pipes; S5: The conveying mechanism is started again to convey the pipes after water blowing to the passivation tank one by one; S6: The conveying mechanism conveys the pipes in the passivation tank to the discharge end of the passivation tank one by one. When the discharge sensor of the passivation tank detects the pipes, the conveying mechanism stops conveying, and the blowing mechanism blows water to the pipes. After the blowing is completed, the pipes are conveyed to the next process.

2. The pipe cleaning control method according to claim 1, characterized in that: In the step S1, when the high liquid level sensor in the ultrasonic cleaning tank detects that the liquid level in the ultrasonic cleaning tank reaches the set liquid level and the actual temperature Ta in the tank is less than the set temperature Tb, the heater 1 and the heater 2 are turned on; when the actual temperature Ta is greater than the set temperature Tc, the heating is stopped; When the actual temperature drops to Td<Ta<Te, after a delay of tb seconds, turn on the heater. When the actual temperature Ta is less than the set temperature Td, after a delay of ta seconds, the heater 1 and the heater 2 are turned on again, wherein Tb is less than Td is less than Te is less than Tc.

3. The pipe cleaning control method according to claim 1, characterized in that: In the step S1, when there are pipes in the ultrasonic cleaning tank, ultrasonic generators of different sections are turned on according to the length of the pipes; when there are no pipes in the ultrasonic cleaning tank, the ultrasonic generators stop working after a delay of tc seconds.

4. The pipe cleaning control method according to claim 1, characterized in that: In the step S1, when the number of pipes in the ultrasonic cleaning tank is less than the set number N1 of the ultrasonic cleaning tank, and the number C2 of pipes at the buffer loading position is greater than the number C1 of pipes fed into the ultrasonic cleaning tank, the conveying mechanism conveys the pipes one by one into the ultrasonic cleaning tank, and at the same time, the first feeding sensor of the ultrasonic cleaning tank starts counting; When the number of pipes in the ultrasonic cleaning tank equals the set number N1 of the ultrasonic cleaning tank, the conveying mechanism stops conveying the pipes into the ultrasonic cleaning tank; When the number C1 of pipes fed into the ultrasonic cleaning tank equals the number C2 of pipes at the buffer loading position, the conveying mechanism stops conveying the pipes into the ultrasonic cleaning tank.

5. The pipe cleaning control method according to claim 1, characterized in that: The step S3 includes a first rinsing tank, a second rinsing tank and a third rinsing tank which are arranged in sequence. The pipes in the ultrasonic cleaning tank are transported to the first rinsing tank, and the pipes in the third rinsing tank are transported to the passivation tank.

6. The pipe cleaning control method according to claim 5, characterized in that: In step S2, when the number of tubes in the ultrasonic cleaning tank is greater than 0, and the number of tubes in the first rinsing tank is less than the set number N2 of the rinsing tank: If the remaining number of pipes to be cleaned is less than the set number N1 of the ultrasonic cleaning tank, and the number C2 of pipes in the buffer loading position is equal to the number C1 of pipes fed into the ultrasonic cleaning tank, after a delay of tc seconds, the conveying mechanism starts to convey the pipes in the ultrasonic cleaning tank to the first rinsing tank; If the remaining number of pipes to be cleaned is greater than or equal to the set number N1 of the ultrasonic cleaning tank: when the number of pipes in the ultrasonic cleaning tank = the set number N1 of the ultrasonic cleaning tank, the conveying mechanism starts to convey the pipes in the ultrasonic cleaning tank to the first rinsing tank.

7. The pipe cleaning control method according to claim 5, characterized in that: In step S3, when the number of tubes in the first rinsing tank is less than the set number N2 of the rinsing tank, the number of tubes in the second rinsing tank is less than the set number N2 of the rinsing tank, and the number of tubes fed into the ultrasonic cleaning tank C1 is equal to the number of tubes fed into the first rinsing tank C3, after a delay of td seconds, the conveying mechanism conveys the tubes from the first rinsing tank to the second rinsing tank; When the number of pipes in the first rinsing tank = the set number N2 of the rinsing tanks, and the number of pipes in the second rinsing tank < the set number N2 of the rinsing tanks, the conveying mechanism conveys the pipes from the first rinsing tank to the second rinsing tank; When the number of pipes in the second rinsing tank = the set number N2 of the rinsing tank, or the pipe feeding count C3 in the first rinsing tank = the pipe feeding count C4 in the second rinsing tank, stop conveying pipes to the second rinsing tank.

8. The pipe cleaning control method according to claim 7, characterized in that: In step S6, when the number of pipes in the passivation tank is greater than 0 and pipes are needed later: When the pipe material feeding count C5 of the third rinsing tank is equal to the pipe material feeding count C6 of the passivation tank: if the pipe material feeding count C6 of the passivation tank is greater than the set number N2 of the rinsing tank, the conveying mechanism will convey the pipe material to the next process; if the pipe material feeding count C6 of the passivation tank is less than the set number N2 of the rinsing tank, after a delay of te seconds, the conveying mechanism will convey the pipe material to the next process; When the pipe feeding count C5 of the third rinsing tank is ≠ the pipe feeding count C6 of the passivation tank, and the number of pipes in the passivation tank is equal to the set number N2 of the rinsing tank, the conveying mechanism conveys the pipes to the next process.

9. The pipe cleaning control method according to claim 1, characterized in that: In step S6, after the air blowing mechanism completes the water blowing action, the conveying mechanism continues to convey the pipe to the output end of the passivation tank. When the pipe feeding count C6 of the passivation tank equals the pipe discharging count C7 of the passivation tank, the conveying mechanism stops conveying the pipe.

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