A pipe cleaning control method

Abstract

The present invention relates to the technical field of pipe cleaning, and discloses a pipe cleaning control method, which specifically includes the following steps: The conveying mechanism conveys pipes one by one into the ultrasonic cleaning tank for ultrasonic cleaning; the conveying mechanism conveys the pipes in the ultrasonic cleaning tank one by one towards the discharge end, and when the discharge sensor detects a pipe, the air blowing mechanism performs a water blowing action on the pipe; the conveying mechanism conveys the pipes that have been blown with water one by one into the rinsing tank for rinsing; the conveying mechanism conveys the pipes in the rinsing tank one by one towards the discharge end, and when the discharge sensor detects a pipe, the air blowing mechanism performs a water blowing action on the pipe; the conveying mechanism conveys the pipes after water blowing one by one into the passivation tank for passivation; the conveying mechanism conveys the pipes in the passivation tank one by one towards the discharge end, and when the discharge sensor detects a pipe, the air blowing mechanism performs a water blowing action on the pipe, and after the water blowing action is completed, the pipe is conveyed to the next process. The problem of deformation of multiple pipes caused by extrusion and impact 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 the copper heat exchange pipe is grooved, there will be some cutting fluid remaining in the copper heat exchange pipe. The remaining cutting fluid will not only corrode the copper heat exchange pipe and affect the service life of the heat exchange pipe, but also form a thin film or other deposits on the inner wall of the pipe wall, reducing the heat transfer efficiency of the heat exchange pipe. Therefore, it is necessary to clean the cutting fluid in the heat exchange pipe.

[0003] In the field of pipe cleaning, especially when cleaning heat exchange pipes, the existing technical solutions usually place multiple pipes in a cleaning tank for cleaning together, controlling water and transferring them as a whole. Among them, during the cleaning and transportation of multiple pipes, it is easy to cause extrusion, impact, etc. between 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 of the present invention for solving the above technical problems 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:

[0006] 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;

[0007] 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;

[0008] S3: The conveying mechanism conveys the pipes that have been blown with water into the rinsing tank for rinsing one by one;

[0009] 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;

[0010] S5: The conveying mechanism is restarted to convey the pipes that have been blown with water into the passivation tank one by one;

[0011] 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 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.

[0012] On the basis of the above technical solution, the present invention can also be improved as follows:

[0013] 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 one and heater two; when the actual temperature Ta > the set temperature Tc, stop heating;

[0014] When the actual temperature drops to Td < Ta < Te, after a delay of tb seconds, turn on heater one;

[0015] When the actual temperature Ta < the set temperature Td, after a delay of ta seconds, turn on heater one and heater two again, where Tb < Td < Te < Tc.

[0016] Preferably, in step S1, when there are pipes in the ultrasonic cleaning tank, turn on different segments of the ultrasonic generator according to the pipe length; when there are no pipes in the ultrasonic cleaning tank, after a delay of tc seconds, the ultrasonic generator stops working.

[0017] 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 C2 of pipes at the buffer loading position > the number C1 of pipes fed into the ultrasonic cleaning tank, the conveying mechanism conveys the pipes to the ultrasonic cleaning tank one by one, and at the same time, the first feeding sensor of the ultrasonic cleaning tank starts counting;

[0018] 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 to the ultrasonic cleaning tank;

[0019] When the number C1 of pipes fed into the ultrasonic cleaning tank = the number C2 of pipes at the buffer loading position, the conveying mechanism stops conveying pipes to the ultrasonic cleaning tank.

[0020] 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.

[0021] 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:

[0022] If the remaining quantity of the pipes to be cleaned < the set quantity N1 of the ultrasonic cleaning tank, and when the quantity of pipes at the buffer loading position C2 = the quantity of pipes fed into the ultrasonic cleaning tank C1, after a delay of tc seconds, the conveying mechanism starts to convey the pipes in the ultrasonic cleaning tank to the first rinsing tank;

[0023] 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.

[0024] 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 quantity of pipes fed into the ultrasonic cleaning tank C1 = the counting of pipes fed into the first rinsing tank C3, after a delay of td seconds, the conveying mechanism conveys the pipes from the first rinsing tank to the second rinsing tank;

[0025] 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;

[0026] When the quantity of pipes in the second rinsing tank = the set quantity N2 of the rinsing tank, or when the counting of pipes fed into the first rinsing tank C3 = the counting of pipes fed into the second rinsing tank C4, stop conveying pipes to the second rinsing tank.

[0027] Preferably, in step S6, when the quantity of pipes in the passivation tank > 0 and pipes are needed subsequently:

[0028] When the counting of pipes fed into the third rinsing tank C5 = the counting of pipes fed into the passivation tank C6: If the counting of pipes fed into the passivation tank C6 > the set quantity N2 of the rinsing tank, the conveying mechanism conveys the pipes to the next process. If the counting of pipes fed into the passivation tank C6 ≤ the set quantity N2 of the rinsing tank, after a delay of te seconds, the conveying mechanism conveys the pipes to the next process;

[0029] When the counting of pipes fed into the third rinsing tank C5 ≠ the counting of pipes fed into the passivation tank C6 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.

[0030] 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 counting of pipes fed into the passivation tank C6 = the counting of pipes discharged from the passivation tank C7, the conveying mechanism stops conveying pipes.

[0031] The beneficial effects of the present invention are as follows: Through the conveying mechanism, a continuous-flow automatic control process for cleaning, rinsing, passivating, and blowing water for a single pipe is realized, solving the problem of pipe deformation caused by extrusion and impact between multiple pipes in the prior art. By setting up a blowing mechanism, the cutting fluid inside the pipe is blown out, avoiding the situation where the cutting fluid corrodes the pipe and even affects the heat exchange efficiency of the pipe; The present invention can realize the automatic switching of pipes of different models, achieve continuous pipe cleaning, and improve the pipe cleaning efficiency. Brief Description of the Drawings

[0032] Figure 1 It is a schematic diagram of the pipe cleaning device of the present invention;

[0033] Figure 2 It is a partial schematic diagram of the conveying mechanism and the blowing mechanism of the present invention;

[0034] Figure 3 It is a front view of the conveying mechanism of the present invention when hooking the pipe;

[0035] Figure 4 It is a schematic diagram of the conveying mechanism of the present invention;

[0036] Figure 5 It is a schematic diagram of the blowing mechanism of the present invention.

[0037] 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, blowing mechanism; 701, support seat; 702, pushing cylinder; 703, connecting plate; 704, nozzle. Detailed Description of the Invention

[0038] 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 of 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 drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence.

[0039] The terms "vertical", "upper", "lower", "horizontal", etc. refer to the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are 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 to the present invention.

[0040] As Figures 1 to 5 shown, the present invention discloses a method for controlling the cleaning of pipes, 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 mechanism 600 is arranged between adjacent tanks. The conveying mechanism 600 is used to convey pipes into the tanks one by one, and a plurality of conveying mechanisms 600 are arranged along the tanks to ensure the stable conveyance of pipes. The air blowing mechanism 700 is arranged at the discharge end of the tank and is used to blow out the cleaning liquid in the pipes to ensure the service life of the pipes and the heat exchange effect.

[0041] 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 pipe-hooking grooves 606 are installed on the chain 605. The pipe-hooking grooves 606 are used to hook single pipes. Both ends of the support rod 608 are installed on adjacent support plates 601, and the support rod 608 is located inside the tank. The support rod 608 is arranged obliquely downward along the conveying direction of the pipes. A 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 pipe-hooking groove 606. A plurality of support rods 608 and pipe-blocking columns 609 are arranged along the length direction of the tank to ensure the stable support of the pipes, realize the conveyance of pipes one by one, avoid the situation of pipe extrusion and deformation, and ensure the pipe quality and service life.

[0042] As Figure 5 shown, 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 pipes 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. A nozzle 704 is installed on the connecting plate 703. The nozzle 704 is used to blow out the cleaning liquid in the pipes. The position of the nozzle 704 corresponds to the position of the discharge sensor.

[0043] 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 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 nozzle 704 a certain distance in the direction of the pipe, so that the nozzle 704 is inserted into the pipe for blowing. After a certain delay time, the pushing cylinder 702 drives the nozzle 704 to retract, completing the water blowing work. By blowing out the cleaning liquid inside the pipe, the cleanliness inside the pipe is ensured, and the situation that the residual cleaning liquid in the pipe affects the heat exchange effect of the pipe or corrodes the pipe is avoided, ensuring the service life of the pipe.

[0044] 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.

[0045] The cleaning control method specifically includes the following steps:

[0046] 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 feeding 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 to count;

[0047] 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;

[0048] 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 feeding 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.

[0049] Among them, the number of pipes in the ultrasonic cleaning tank 100 = the number of pipe feedings C1 in the ultrasonic cleaning tank 100 - the count of the discharge sensor in the ultrasonic cleaning tank 100.

[0050] 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;

[0051] When the actual temperature drops to Td < Ta < Te, after a delay of tb seconds, turn on Heater 1;

[0052] 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, and the temperature of the cleaning liquid in the ultrasonic cleaning tank 100 is heated through the heaters to improve the cleaning efficiency and cleaning ability.

[0053] 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, turn on Heater 1 after a delay of several seconds, 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.

[0054] Among them, when there are pipes in the ultrasonic cleaning tank 100, ultrasonic generators in different segments are turned on 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 and improve the cleaning effect on the pipes.

[0055] 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:

[0056] 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:

[0057] 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 at the buffer loading position C2 = the quantity of pipes fed into the ultrasonic cleaning tank 100 C1, 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 started, and begins to transport the pipes in the ultrasonic cleaning tank 100 to the first rinsing tank 200;

[0058] 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.

[0059] 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 pipes, and the air blowing mechanism 700 performs a water blowing action on the pipes; the air blowing mechanism 700 blows out the cleaning liquid in the pipes to avoid the situation that the cleaning liquid corrodes the pipes and even affects the heat exchange effect of the pipes.

[0060] After the water blowing action is completed, judge the quantity of pipes in the ultrasonic cleaning tank 100 again:

[0061] 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 blown pipes one by one to the first rinsing tank 200 for rinsing;

[0062] 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;

[0063] Step S3: The conveying mechanism 600 transports the 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;

[0064] 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, then step S22 is continued to be executed, and so on until all the pipes of this batch are completed.

[0065] When the pipe material feeding count C3 of the first rinsing tank 200 is equal to the pipe material feeding 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 conveying.

[0066] Step S31: The pipe material is transported from the first rinsing tank 200 to the second rinsing tank 300.

[0067] When the quantity of pipe material in the first rinsing tank 200 < the set quantity N2 of the rinsing tank, the quantity of pipe material in the second rinsing tank 300 < the set quantity N2 of the rinsing tank, and the pipe material feeding quantity C1 of the ultrasonic cleaning tank 100 = the pipe material 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 quantity of the pipe material is less than the set quantity N2 of the rinsing tank. After a delay of td seconds, the conveying mechanism 600 transports the pipe material from the first rinsing tank 200 to the second rinsing tank 300.

[0068] When the quantity of pipe material in the first rinsing tank 200 = the set quantity N2 of the rinsing tank and the quantity of pipe material in the second rinsing tank 300 < the set quantity N2 of the rinsing tank, the conveying mechanism 600 transports the pipe material 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.

[0069] When the quantity of pipe material in the second rinsing tank 300 = the set quantity N2 of the rinsing tank, or the pipe material feeding count C3 of the first rinsing tank 200 = the pipe material feeding count C4 of the second rinsing tank 300, stop transporting the pipe material to the second rinsing tank 300.

[0070] Step S32: The pipe material is transported from the second rinsing tank 300 to the third rinsing tank 400.

[0071] When the quantity of pipe material in the second rinsing tank 300 < the set quantity N2 of the rinsing tank, the quantity of pipe material in the third rinsing tank 400 < the set quantity N2 of the rinsing tank, and the pipe material feeding count C4 of the second rinsing tank 300 = the pipe material 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 transports the pipe material in the second rinsing tank 300 to the third rinsing tank 400.

[0072] When the quantity of pipe material in the second rinsing tank 300 = the set quantity N2 of the rinsing tank and the quantity of pipe material in the third rinsing tank 400 < the set quantity N2 of the rinsing tank, the conveying mechanism 600 between the second rinsing tank 300 and the third rinsing tank 400 transports the pipe material in the second rinsing tank 300 to the third rinsing tank 400.

[0073] Wherein, 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 pipes to the third rinsing tank 400;

[0074] 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 a pipe, the conveying mechanism 600 stops conveying the pipe, and the air blowing mechanism 700 performs a water blowing action on the pipe. Specifically:

[0075] Step S41: The conveying mechanism 600 conveys the pipes in the rinsing tank one by one to the discharge end of the rinsing tank;

[0076] 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:

[0077] 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 is started to convey the pipes to the passivation tank 500;

[0078] When 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 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 is started to convey the pipes to the passivation tank 500.

[0079] 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;

[0080] 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, step S41 is continued;

[0081] 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.

[0082] Step S5: The conveying mechanism 600 is started again to convey the water - blown pipes one by one into the passivation tank 500;

[0083] When the pipe feeding count C5 of the third rinsing tank 400 = the pipe feeding count C6 of the passivation tank 500, stop feeding pipes to the passivation tank 500; otherwise, continue to execute step S42, and loop like this until all pipes in this batch are completed.

[0084] Step S6: Transport the pipes in the passivation tank 500 to the next process;

[0085] Step S61: When the number of pipes in the passivation tank 500 > 0, and the subsequent process is ready and pipes are needed:

[0086] 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 transports 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 transports the pipes to the next process;

[0087] 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 transports the pipes to the next process.

[0088] Step S62: The conveying mechanism 600 transports 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 transporting, and the blowing mechanism 700 performs a water blowing action on the pipe. The blowing mechanism 700 blows out the cleaning liquid inside the pipe to ensure the pipe life and heat exchange effect. When 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 and pipes are needed, the conveying mechanism 600 is started again to transport the pipes to the next process; if there are pipes in the passivation tank 500, then continue to execute step S61.

[0089] After the blowing mechanism 700 completes the water blowing action, the conveying mechanism 600 continues to transport 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 means that all pipes have been cleaned, then the conveying mechanism 600 stops transporting the pipes.

[0090] Switch the pipe batch:

[0091] When the pipe material feeding count C3 of the first rinsing tank 200 is equal to the pipe material 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 pipe quantity C2 at the buffer loading position of the previous batch, vacates 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 the pipes of the second batch according to the above logic, the cyclic cleaning of pipes of different batches is realized in this way, improving the pipe cleaning efficiency and avoiding the situation of pipe deformation caused by pipe stacking, and ensuring the pipe quality.

[0092] When the quantity of the pipes to be cleaned in this batch is less than the cleaning set quantity, or the remaining quantity of the pipes to be cleaned in this batch is less than the cleaning set quantity, the pipe batch is switched: the quantity of pipes in the ultrasonic cleaning tank 100 < the set quantity N1 of the ultrasonic cleaning tank 100, and it lasts for Tf seconds. If there is still no pipe at the feeding end of the ultrasonic cleaning tank 100, it directly jumps to the next step, the conveying mechanism 600 is started, and the pipes in the ultrasonic cleaning tank 100 are conveyed to the next process until there is a pipe at the buffer loading position, then this condition is lifted and the normal process is restored.

[0093] 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 air blowing mechanisms, characterized in that, Specifically, the following steps are included: 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: 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 pipe feeding quantity C1 of the ultrasonic cleaning tank, the conveying mechanism conveys the pipes into the ultrasonic cleaning tank one by one, and at the same time, the first feeding sensor of the ultrasonic cleaning tank starts to count; If not, stop conveying pipes into 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 stops conveying pipes into the ultrasonic cleaning tank; When the pipe feeding quantity 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; 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 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 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 starts again and conveys 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 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; Switch the pipe batch: When the pipe feeding count C3 of the first rinsing tank = the pipe feeding quantity C1 of the ultrasonic cleaning tank, it means that all the pipes of this batch have been conveyed to the rinsing tank. Transmit the signal to the upper computer. After the upper computer confirms, send the information of the second batch of pipes, confirm the signal and clear the number of pipes C2 at the buffer loading position of the previous batch.

2. The pipe cleaning control method according to claim 1, characterized in that In the 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 the first heater and the second heater; 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 the first heater; When the actual temperature Ta < the set temperature Td, after a delay of ta seconds, turn on the first heater and the second heater again, where Tb < Td < Te < 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, 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.

4. The pipe cleaning control method according to claim 1, characterized in that In step S3, a first rinsing tank, a second rinsing tank, and a third rinsing tank are arranged in sequence. The pipe in the ultrasonic cleaning tank is transported to the first rinsing tank, and the pipe in the third rinsing tank is transported to the passivation tank.

5. The pipe cleaning control method according to claim 4, wherein 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 pipes C1 fed into the ultrasonic cleaning tank, after a delay of tc seconds, the conveying mechanism is started to transport the pipes in the ultrasonic cleaning tank to the first rinsing tank; If the remaining number of pipes to be cleaned ≥ 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 transport the pipes in the ultrasonic cleaning tank to the first rinsing tank.

6. The pipe cleaning control method according to claim 4, characterized in that, In step S3, when the number of pipes in the first rinsing tank < the set number N2 of the rinsing tank, the number of pipes in the second rinsing tank < the set number N2 of the rinsing tank, and the number of pipes C1 fed into the ultrasonic cleaning tank = the number of pipes C3 counted for feeding into the first rinsing tank, after a delay of td seconds, the conveying mechanism transports the pipes 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 tank and the number of pipes in the second rinsing tank < the set number N2 of the rinsing tank, the conveying mechanism transports 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 number of pipes C3 counted for feeding into the first rinsing tank = the number of pipes C4 counted for feeding into the second rinsing tank, the feeding of pipes to the second rinsing tank stops.

7. The pipe cleaning control method according to claim 6, wherein In step S6, when the number of pipes in the passivation tank > 0 and pipes are needed subsequently: When the number of pipes C5 fed into the third rinsing tank = the number of pipes C6 fed into the passivation tank: if the number of pipes C6 fed into the passivation tank > the set number N2 of the rinsing tank, the conveying mechanism transports the pipes to the next process; if the number of pipes C6 fed into the passivation tank ≤ the set number N2 of the rinsing tank, after a delay of te seconds, the conveying mechanism transports the pipes to the next process; When the number of pipes C5 fed into the third rinsing tank ≠ the number of pipes C6 fed into the passivation tank and the number of pipes in the passivation tank = the set number N2 of the rinsing tank, the conveying mechanism transports the pipes to the next process.

8. The pipe cleaning control method according to claim 1, wherein In step S6, after the air blowing mechanism completes the water blowing action, the conveying mechanism continues to transport the pipes to the output end of the passivation tank. When the number of pipes C6 fed into the passivation tank = the number of pipes C7 discharged from the passivation tank, the conveying mechanism stops transporting the pipes.

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