Vacuum pipeline cleaning device with heated cleaning tube

Abstract

The utility model provides a vacuum pipeline cleaning device with heating cleaning pipe, including cleaning subassembly, the cleaning subassembly includes steam generator, controller, gas outlet pipe, connecting pipe, heating pipe, heating wire, temperature sensor and connector, the front surface mounting of steam generator has the controller, the top intercommunication of steam generator has the gas outlet pipe, the top end intercommunication of gas outlet pipe has the connecting pipe, the outside wall fixed connection of connecting pipe has heating pipe, the utility model discloses using steam generator produces high temperature steam, and carries out secondary heating to steam in connecting pipe end, guarantees the temperature and cleaning effect of cleaning steam, has realized the efficient cleaning to the inside of pipeline, through electric valve control, opens and closes the opening and closing of the discharge pipe, ensures that material can accurately, stably enter steam generator and carry out heating treatment, simultaneously, the setting of audible -visual annunciator can send out the alarm in time when the equipment appears the exception, has improved the security of equipment.

Description

Technical Field

[0001] This utility model relates to a cleaning device, and more particularly to a vacuum pipeline cleaning device with a heated cleaning tube, belonging to the field of vacuum pipeline cleaning technology. Background Technology

[0002] In PCB manufacturing, vacuum piping systems are critical auxiliary equipment, widely used for material transport and process environment control in core processes such as electroplating, etching, and lamination. For example, in the vacuum lamination process, the piping needs to continuously transport volatile organic solvents and thermosetting resins. These substances are easily volatilized at high temperatures, but some oily components will adhere to the inner wall of the piping with the airflow. Because the inside of the vacuum piping is usually under negative pressure and the airflow velocity is low, the oily substances are prone to condensation and deposition in the low-temperature zone, forming a viscous or semi-solid dirt layer.

[0003] Existing vacuum pipeline cleaning technology has three typical drawbacks: Physical cleaning methods (such as resin bullet stamping) require high pressure resistance of the pipes, cannot be adapted to curved pipes, and are prone to scratching the inner wall. Chemical cleaning requires a large amount of chemicals, which can easily lead to secondary pollution. In addition, a lengthy drying process (usually 2-4 hours) is required after cleaning, which affects the utilization rate of equipment. Flexible brush cleaning is not strong enough to remove stubborn scale (such as polymer byproducts in semiconductor pipes), and its cleaning efficiency is less than 60%.

[0004] Increased dirt layer thickness leads to a reduction in the effective flow cross-sectional area of ​​the pipes, increased airflow resistance, and a decrease in system vacuum, affecting the uniformity of lamination in PCB production. Simultaneously, oil decomposition products release volatile organic compounds, polluting the cleanroom environment and corroding precision equipment such as vacuum pumps. Therefore, a vacuum pipe cleaning device with a heated cleaning tube is proposed. Utility Model Content

[0005] In view of this, the present invention provides a vacuum pipe cleaning device with a heated cleaning tube. Through the design of "heated cleaning tube + vacuum synergy", it specifically solves the above-mentioned defects. It is especially suitable for curved pipes and high-temperature soluble dirt scenarios, so as to solve or alleviate one of the technical problems existing in the prior art, and at least provides a beneficial option.

[0006] The technical solution of this utility model embodiment is implemented as follows: a vacuum pipeline cleaning device with a heated cleaning tube, comprising a cleaning assembly, wherein the cleaning assembly includes a steam generator, a controller, an outlet pipe, a connecting pipe, a heating tube, a heating wire, a temperature sensor, and a connector; A controller is mounted on the front surface of the steam generator. An exhaust pipe is connected to the top of the steam generator. A connecting pipe is connected to the top end of the exhaust pipe. A heating tube is fixedly connected to the outer wall of the connecting pipe. An electric heating wire is installed on the inner wall of the heating tube. A temperature sensor is installed on the connecting pipe. A connector is threaded to one end of the connecting pipe. The temperature sensor is signal-connected to the controller.

[0007] A further preferred embodiment: the top of the cleaning assembly is provided with a feeding assembly, which includes a storage tank, a discharge pipe and an electric valve; The bottom of the storage tank is connected to a discharge pipe, an electric valve is installed on the discharge pipe, the discharge pipe is connected to the top of the steam generator, and the electric valve is electrically connected to the controller.

[0008] A further preferred embodiment: an audible and visual alarm is installed on the top of the steam generator, and the audible and visual alarm is electrically connected to the controller.

[0009] A further preferred embodiment: the bottom of the steam generator is symmetrically and fixedly connected with support legs.

[0010] A further preferred embodiment: the front surface of the controller is equipped with a display screen and operation buttons.

[0011] A further preferred embodiment: the top of the storage tank is connected to a feed pipe.

[0012] A further preferred embodiment: a liquid level sensor is installed on the storage tank, and the liquid level sensor is connected to the controller signal.

[0013] A further preferred embodiment: the bottom of the storage tank is symmetrically and fixedly connected with support columns, and the support columns are fixedly connected to the top of the steam generator.

[0014] The present invention has the following advantages due to the adoption of the above technical solution: I. This utility model uses a steam generator to produce high-temperature steam and reheats the steam at the end of the connecting pipe to ensure the temperature and cleaning effect of the cleaning steam, thus achieving efficient cleaning of the inside of the pipe.

[0015] Second, this utility model uses an electric valve to control the opening and closing of the discharge pipe, ensuring that materials can accurately and stably enter the steam generator for heating. Simultaneously, the inclusion of an audible and visual alarm promptly alerts the system in case of equipment malfunction, enhancing equipment safety.

[0016] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural view of the present invention from one perspective; Figure 2 This is another structural view of the present invention; Figure 3 This is a structural diagram of the storage tank of this utility model; Figure 4 This is a structural diagram of the connecting pipe of this utility model; Figure 5 This is a diagram showing the internal structure of the heating tube of this utility model.

[0019] Reference numerals: 10. Cleaning assembly; 11. Steam generator; 12. Support leg; 13. Controller; 14. Display screen; 15. Operation buttons; 16. Air outlet pipe; 17. Connecting pipe; 18. Heating element; 19. Heating wire; 110. Temperature sensor; 111. Connector; 112. Audible and visual alarm; 20. Feeding assembly; 21. Storage tank; 22. Feed pipe; 23. Liquid level sensor; 24. Support column; 25. Discharge pipe; 26. Electric valve. Detailed Implementation

[0020] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0021] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] like Figures 1-5As shown, this utility model embodiment provides a vacuum pipeline cleaning device with a heated cleaning tube, including a cleaning assembly 10. The cleaning assembly 10 includes a steam generator 11, a controller 13, an exhaust pipe 16, a connecting pipe 17, a heating tube 18, a heating wire 19, a temperature sensor 110, and a connector 111. A controller 13 is mounted on the front surface of the steam generator 11. An outlet pipe 16 is connected to the top of the steam generator 11, and a connecting pipe 17 is connected to the top of the outlet pipe 16. A heating tube 18 is fixedly connected to the outer wall of the connecting pipe 17, and a heating wire 19 is installed on the inner wall of the heating tube 18. A temperature sensor 110 is mounted on the connecting pipe 17, and a connector 111 is threaded to one end of the connecting pipe 17. The temperature sensor 110 is signal-connected to the controller 13. The steam generator 11 generates high-temperature steam through heating, and the high-temperature steam enters the connecting pipe 17 through the outlet pipe 16. In the connecting pipe 17, the heating wire 19 inside the heating tube 18 reheats the steam to ensure that the steam reaches the required cleaning temperature. The temperature sensor 110 monitors the temperature of the steam in the connecting pipe 17 in real time and transmits the signal to the controller 13. The controller 13 adjusts the heating power of the heating wire 19 according to the preset cleaning temperature range to maintain a constant steam temperature. One end of the connecting pipe 17 is provided with a threaded connection structure to facilitate quick replacement of the connector 111, adapting to vacuum pipes of different sizes. The connector 111 uses a rotary nozzle (300r / min) with an adjustable spray angle (30° / 45° / 60°) to accommodate different pipe diameters (50-200mm).

[0023] The vacuum pipeline adopts a staged evacuation mode: initially, the pressure is evacuated to -0.05MPa to lower the boiling point of the cleaning liquid to 60-80℃, and heating is used to achieve low-energy boiling; during the cleaning stage, a negative pressure of -0.08MPa is maintained, and the scouring effect is enhanced by the high-speed flow of the gas-liquid mixture (flow velocity ≥15m / s). A pressure feedback valve is installed: when the pressure fluctuation in the pipe exceeds ±0.01MPa, the vacuum pump power is automatically adjusted to avoid pipe damage caused by sudden pressure changes.

[0024] In this embodiment, specifically: a feeding assembly 20 is provided on the top of the cleaning assembly 10, and the feeding assembly 20 includes a storage tank 21, a discharge pipe 25 and an electric valve 26; The bottom of the storage tank 21 is connected to the discharge pipe 25, and an electric valve 26 is installed on the discharge pipe 25. The discharge pipe 25 is connected to the top of the steam generator 11. The electric valve 26 is electrically connected to the controller 13. The controller 13 controls the opening and closing of the discharge pipe 25 through the electric valve 26.

[0025] In this embodiment, specifically: an audible and visual alarm 112 is installed on the top of the steam generator 11. The audible and visual alarm 112 is electrically connected to the controller 13. When the temperature is too high or the steam generator 11 is abnormal, the audible and visual alarm 112 will immediately sound an alarm to remind the operator to handle the situation in time.

[0026] In this embodiment, specifically: the bottom of the steam generator 11 is symmetrically and fixedly connected with support legs 12, which are used to stably support the steam generator 11.

[0027] In this embodiment, specifically: a display screen 14 and operation buttons 15 are mounted on the front surface of the controller 13, and the display screen 14 and operation buttons 15 facilitate the operation of the controller 13.

[0028] In this embodiment, specifically: the top of the storage tank 21 is connected to the feed pipe 22, through which the cleaning solvent is fed into the storage tank 21.

[0029] In this embodiment, specifically: a liquid level sensor 23 is installed on the storage tank 21. The liquid level sensor 23 is connected to the controller 13. The liquid level sensor 23 on the storage tank 21 monitors the liquid level of the material in the tank in real time. When the liquid level is lower than the preset value, the controller 13 will issue a reminder signal to prompt the operator to replenish the material in time.

[0030] In this embodiment, specifically: support columns 24 are symmetrically and fixedly connected to the bottom of the storage tank 21. The support columns 24 are fixedly connected to the top of the steam generator 11. The support columns 24 are used to support the storage tank 21 and improve the stability of the storage tank 21.

[0031] In operation, this invention works as follows: the steam generator 11 produces high-temperature steam through heating, and the high-temperature steam enters the connecting pipe 17 through the outlet pipe 16. In the connecting pipe 17, the heating wire 19 inside the heating tube 18 reheats the steam to ensure it reaches the required cleaning temperature. The temperature sensor 110 monitors the temperature of the steam in the connecting pipe 17 in real time and transmits the signal to the controller 13. A PID controller is selected, and the controller 13 adjusts the heating power of the heating wire 19 according to the preset cleaning temperature range to maintain a constant steam temperature.

[0032] The connecting pipe 17 is the cleaning fluid channel (made of 316L stainless steel, temperature resistance ≥150℃). The chamber between the heating pipe 18 and the connecting pipe 17 is the heating chamber, which is equipped with a ring heating wire 19 (power 500-800W) and a temperature sensor 110 (accuracy ±1℃). The cleaning fluid temperature is stabilized at 80-120℃ by the PID controller. When the steam temperature reaches the preset value, connector 111 connects to the vacuum pipe to be cleaned, and steam enters the pipe through connector 111 to efficiently clean the inner wall of the pipe.

[0033] During the cleaning process, the controller 13 controls the opening and closing of the discharge pipe 25 via the electric valve 26 to ensure that the cleaning material in the storage tank 21 can accurately and stably enter the steam generator 11 for heating treatment. At the same time, the controller 13 also monitors the operating status of the entire cleaning device. Once an abnormality occurs in the equipment, such as excessive temperature or abnormality in the steam generator 11, the audible and visual alarm 112 will immediately sound an alarm to remind the operator to handle the situation in time and ensure the safe operation of the equipment.

[0034] The liquid level sensor 23 on the storage tank 21 monitors the liquid level of the material inside the tank in real time. When the liquid level is lower than the preset value, the controller 13 will issue a reminder signal to prompt the operator to replenish the material in time. The support legs 12 and the support columns 24 support the steam generator 11 and the storage tank 21 respectively, ensuring the stability of the entire cleaning device.

[0035] The heating system features over-temperature protection (automatic power-off at 150℃) and an anti-dry-burning sensor; The vacuum pipeline uses explosion-proof solenoid valves (pressure resistance ≥ 0.3 MPa) and is equipped with an ozone leak alarm (threshold ≤ 0.1 ppm).

[0036] In summary, the vacuum pipeline cleaning device with heated cleaning pipe provided by this utility model uses a steam generator 11 to generate high-temperature steam and then reheats the steam at the end of the connecting pipe 17, ensuring the temperature and cleaning effect of the cleaning steam and achieving efficient cleaning of the inside of the pipeline.

[0037] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A vacuum pipeline cleaning device with a heated cleaning tube, comprising a cleaning assembly (10), characterized in that: The cleaning assembly (10) includes a steam generator (11), a controller (13), an exhaust pipe (16), a connecting pipe (17), a heating pipe (18), a heating wire (19), a temperature sensor (110), and a connector (111). A controller (13) is installed on the front surface of the steam generator (11). The top of the steam generator (11) is connected to an outlet pipe (16). The top end of the outlet pipe (16) is connected to a connecting pipe (17). A heating pipe (18) is fixedly connected to the outer wall of the connecting pipe (17). An electric heating wire (19) is installed on the inner wall of the heating pipe (18). A temperature sensor (110) is installed on the connecting pipe (17). A connector (111) is threaded to one end of the connecting pipe (17). The temperature sensor (110) is signal-connected to the controller (13).

2. The vacuum pipeline cleaning device with a heated cleaning tube according to claim 1, characterized in that: The top of the cleaning assembly (10) is provided with a feeding assembly (20), which includes a storage tank (21), a discharge pipe (25) and an electric valve (26). The bottom of the storage tank (21) is connected to a discharge pipe (25), an electric valve (26) is installed on the discharge pipe (25), the discharge pipe (25) is connected to the top of the steam generator (11), and the electric valve (26) is electrically connected to the controller (13).

3. The vacuum pipeline cleaning device with a heated cleaning tube according to claim 1, characterized in that: The steam generator (11) is equipped with an audible and visual alarm (112) on top, which is electrically connected to the controller (13).

4. The vacuum pipeline cleaning device with a heated cleaning tube according to claim 1, characterized in that: The bottom of the steam generator (11) is symmetrically and fixedly connected with support legs (12).

5. A vacuum pipeline cleaning device with a heated cleaning tube according to claim 1, characterized in that: The front surface of the controller (13) is equipped with a display screen (14) and operation buttons (15).

6. A vacuum pipeline cleaning device with a heated cleaning tube according to claim 2, characterized in that: The top of the storage tank (21) is connected to the feed pipe (22).

7. A vacuum pipeline cleaning device with a heated cleaning tube according to claim 2, characterized in that: A liquid level sensor (23) is installed on the storage tank (21), and the liquid level sensor (23) is connected to the controller (13) via signal.

8. A vacuum pipeline cleaning device with a heated cleaning tube according to claim 2, characterized in that: The bottom of the storage tank (21) is symmetrically and fixedly connected to a support column (24), which is fixedly connected to the top of the steam generator (11).

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