Moisturizing spraying device

By designing a moisturizing spray device, using multi-pipe system and precise control technology, the problem of rust returning to long strip workpieces during pretreatment is solved, uniform moisturizing and efficient coating of the workpiece surface is achieved, and the stability of the coating process and product quality are improved.

CN223234074UActive Publication Date: 2025-08-19ZHEJIANG HUALI INTELLIGENT EQUIP CO LTD
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Patent Information

Application Number
CN202422336682.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-25
Publication Date
2025-08-19
Estimated Expiration
2034-09-25

AI Technical Summary

Technical Problem

During the pretreatment process of large-scale and long strip workpieces, the transition section lacks effective moisturizing measures, which leads to the workpiece being prone to rust during the transfer process, affecting the coating effect and product quality.

Method used

A moisturizing spray device is designed to achieve precise control of gas compression and liquid delivery through a first pipe for compressing gas and a second pipe for transporting liquid arranged in parallel, combined with multiple nozzle components, filtering and pressure regulating valves, pneumatic ball valves and solenoid pulse valves, precise control of gas compression and liquid delivery, forming a uniform and delicate spray, ensuring the stability of gas pressure and liquid purity, adapting to flow adjustments of different needs, and being easy to maintain.

Benefits of technology

Effectively avoid rust from workpieces, improve spray coverage and efficiency, extend the service life of the device, ensure uniformity of the surface humidity of the workpiece, reduce local overwetting or overdrying, and improve the stability and reliability of the coating process.

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Abstract

The utility model discloses a moisturizing spraying device which comprises a first pipeline used for compressing gas and a second pipeline used for conveying liquid. The first pipeline and the second pipeline are arranged in parallel and are respectively provided with a main pipeline and a branch pipeline which are communicated; a plurality of spray head assemblies are arranged between branch pipelines of the first pipeline and the second pipeline; a filtering pressure regulating valve for regulating air pressure is arranged on a main pipeline of the first pipeline; a filter and a pneumatic ball valve are arranged on a main pipeline of the second pipeline; gas compression and liquid conveying are accurately controlled through the first pipeline and the second pipeline, so that the device can generate uniform and fine spray; the stability of gas pressure and liquid purity is ensured through the filtering pressure regulating valve and the filter, so that the stability and the reliability of spraying are improved; and the spray head assembly, the first pipeline and the second pipeline are convenient to connect and easy to maintain, cleaning and maintenance in the using process are facilitated, and the service life of the device is prolonged.
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Description

Technical Field

[0001] The utility model relates to the field of coating technology, in particular to a moisturizing spray device. Background Art

[0002] With the advancement of industrial manufacturing, large, elongated workpieces, such as automobile bodies and large steel structures, are increasingly common on production lines. When these workpieces pass through traditional pre-treatment lines, their length far exceeds the capacity of standard processing tanks, resulting in a significant increase in the transition section between one process stage and the next. These transition sections, which serve as pathways connecting different processing tanks, often lack effective moisture retention measures, leaving the workpieces exposed to air for extended periods during transfer. This makes rusting a particular problem, particularly in environments with low humidity or corrosive gases.

[0003] Rust reversion not only directly impairs the effectiveness of pretreatment, increasing the difficulty and cost of subsequent coating processes, but can also severely impact the quality and performance of the final product, such as reduced coating adhesion and decreased corrosion resistance. Therefore, effectively reducing or preventing rust reversion on long, rectangular workpieces during pretreatment has become a pressing technical challenge for the coating industry. Summary of the Invention

[0004] In order to overcome the above-mentioned defects in the prior art, an efficient moisturizing spray device is provided.

[0005] The technical solution of the utility model is as follows: a moisturizing spray device comprises a first pipe for compressing gas and a second pipe for conveying liquid; the first pipe and the second pipe are arranged in parallel, and both are provided with a main pipe and a branch pipe connected to each other; a plurality of nozzle assemblies are provided between the branch pipes of the first pipe and the second pipe; a filter pressure regulating valve for adjusting the air pressure is provided on the main pipe of the first pipe; a filter and a pneumatic ball valve are provided on the main pipe of the second pipe; gas compression and liquid conveying are precisely controlled by the first pipe and the second pipe, so that the device can produce a uniform and delicate spray; the filter pressure regulating valve and the filter ensure the stability of the gas pressure and the purity of the liquid, thereby improving the stability and reliability of the spray; the pneumatic ball valve can flexibly adjust the flow rate of the moisturizing liquid as needed; the nozzle assembly, the first pipe and the second pipe are convenient to connect and easy to maintain, and are convenient to clean and maintain during use, thereby extending the service life of the device.

[0006] Preferably, two branch pipes are provided, and a three-way connector is provided between the two branch pipes and the main pipe; the simultaneous operation of the two branch pipes can significantly improve the working efficiency of the spray device, especially when processing large-area or long workpieces, and can complete the moisturizing task faster.

[0007] Preferably, multiple nozzle assemblies are evenly arranged between the branch pipes provided on the first and second pipes. By evenly arranging multiple nozzle assemblies on the branch pipes, the spray can cover a wider area, reducing blind spots, and improving spray coverage and efficiency. This ensures that the number, size, and distribution of mist particles emitted by each nozzle remain consistent, resulting in a uniform and delicate spray effect. This helps maintain uniform moisture on the workpiece surface, avoiding areas of excessive moisture or dryness.

[0008] Preferably, the nozzle assembly includes a connecting pipe and a nozzle; the nozzle is mounted on the connecting pipe. The nozzle is mounted in the middle of the connecting pipe to facilitate the full mixing of gas and liquid and to form uniform and fine mist particles when sprayed out.

[0009] Preferably, the length of the connecting pipe matches the distance between the first and second pipes, making the overall spatial layout of the moisturizing spray device more reasonable and compact. Proper control of the parallel distance avoids unnecessary space waste, while the precise calculation of the connecting pipe length ensures close coordination and efficient collaboration between the various components within the device.

[0010] Preferably, the second pipeline is also equipped with a pressure gauge for measuring the pressure within the pipeline. This pressure gauge facilitates maintenance and management of the device. By regularly recording and analyzing pressure gauge readings, the operating status and performance trends of the device can be understood, providing a basis for formulating maintenance plans and improvement programs.

[0011] Preferably, a pneumatic ball valve is installed on the end of the second pipe's main pipeline, away from the tee connector. A pressure gauge is installed on the end of the second pipe's main pipeline, closer to the tee connector. A filter is installed on the main pipeline between the pneumatic ball valve and the pressure gauge. The pneumatic ball valve controls fluid flow, the pressure gauge monitors pressure in real time and issues fault warnings, and the filter protects the system and improves fluid quality. These three components work together to ensure safe, stable, and efficient operation of the moisturizing spray device.

[0012] Preferably, the first pipeline is further provided with an electromagnetic pulse valve for remote wireless control of the first pipeline. The electromagnetic pulse valve allows the first pipeline to be opened and closed remotely via electrical signals, allowing an operator to operate the valve from a distance from the device, thereby improving operational convenience and safety.

[0013] Preferably, a cap is installed on the end of the branch pipe away from the tee connector. The cap seals the end of the branch pipe to prevent fluid (including gas and liquid) from leaking out. This helps maintain the system's tightness and ensures stable operation of the spray device under normal operating conditions.

[0014] Preferably, both the branch and main pipelines are composed of multiple straight sections, with elbow connectors interspersed between them. By dividing the main and branch pipelines into multiple straight sections, a flexible layout can be achieved based on the actual installation environment and space constraints. The elbow connectors make the device easier to install, adjust, and maintain.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] A moisturizing spray device accurately controls gas compression and liquid delivery through a first pipe and a second pipe, so that the device can produce uniform and delicate spray to achieve efficient moisturizing.

[0017] Furthermore, the stability of gas pressure and liquid purity is ensured by filtering the pressure regulating valve and the filter, thereby improving the stability and reliability of the spray.

[0018] Furthermore, through the pneumatic ball valve, the flow rate of the moisturizing liquid can be flexibly adjusted as needed to meet the personalized requirements of different needs and flexibly adjust the spray effect of the moisturizing spray device.

[0019] Furthermore, the nozzle assembly, the first pipe and the second pipe are easy to install and maintain, and are convenient for cleaning and maintenance during use, thereby extending the service life of the device.

[0020] Other features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic structural diagram of the first pipeline of the present invention;

[0023] Figure 2 This is a schematic diagram of the installation of the nozzle assembly of the present invention;

[0024] Figure 3 This is a schematic diagram of the installation of the second pipeline of the present invention;

[0025] The following are the descriptions of the reference numerals:

[0026] First pipeline 1, second pipeline 2, main pipeline 3, branch pipeline 4, nozzle assembly 5, filter pressure regulating valve 11, electromagnetic pulse valve 12, manual valve 13, filter 21, pneumatic ball valve 22, pressure gauge 23, pipe cap 41, three-way connector 6, connecting pipe 51, nozzle 52, elbow connector 7, workpiece 8. DETAILED DESCRIPTION

[0027] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0028] In the following description, terms such as "inside", "outside", "up", "down", "left", "right", etc. that indicate directions or positional relationships are only used to facilitate the description of the embodiments and simplify the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0029] like Figures 1 to 3 As shown, a moisturizing spray device is used to evenly spray moisturizing liquid or rust inhibitor on the surface of the workpiece 8 in the transition section when the workpiece 8 is transferred from one process section to the next process section, forming a temporary protective film to isolate the air and corrosive gases, thereby effectively preventing the workpiece from rusting during the transfer process.

[0030] A moisturizing spray device includes a first pipe 1 for compressed gas and a second pipe 2 for conveying liquid; the first pipe 1 and the second pipe 2 are arranged in parallel, and are both provided with a connected main pipe 3 and branch pipe 4; a plurality of nozzle assemblies 5 are provided between the branch pipes 4 of the first pipe 1 and the second pipe 2, and a workpiece 8 is surrounded by the branch pipes 4 of the first pipe 1 and the second pipe 2. The plurality of nozzle assemblies 5 mix the compressed gas with the moisturizing liquid and spray it evenly in the form of tiny water droplets to achieve a moisturizing effect; a filter pressure regulating valve 11 for adjusting the air pressure is provided on the main pipe 3 of the first pipe 1 to ensure the uniformity and stability of the spray; a filter 21 and a pneumatic ball valve 22 are provided on the main pipe 3 of the second pipe 2. The filter 21 is used to filter impurities in the moisturizing liquid, protect the nozzle assembly from blockage, and ensure the purity of the spray; the pneumatic ball valve 22 is used to control the flow of the moisturizing liquid to achieve precise adjustment of the spray amount.

[0031] There are two branch pipes 4, and a three-way connector 6 is provided between the two branch pipes 4 and the main pipe 3. The three-way connector 6 is used to connect the main pipe 3 and the two branch pipes 4, so that the gas or liquid in the main pipe 3 can be smoothly diverted to the two branch pipes 4. Each branch pipe 4 is connected to an outlet of the three-way connector 6 and receives gas or liquid from the main pipe 3. Allowing the two branch pipes 4 of the first pipe 1 and the second pipe 2 to work simultaneously improves the coverage of the spray device. The simultaneous operation of the two branch pipes 4 can significantly improve the working efficiency of the spray device, especially when processing large-area or long-shaped workpieces 8, and can complete the moisturizing task more quickly.

[0032] The nozzle assembly 5 includes a connecting pipe 51 and a nozzle 52; the nozzle 52 is mounted in the middle of the connecting pipe 51. The connecting pipe 51 is connected to the two branch pipes 4 provided on the first pipe 1 and the second pipe 2. The connecting pipe 51 guides the gas and liquid from the first pipe 1 and the second pipe 2 to the nozzle 52. The connecting pipe 51 is generally made of corrosion-resistant and pressure-resistant materials to ensure structural stability and sealing under high pressure and liquid flow. The nozzle 52 is mounted in the middle of the connecting pipe 51, which helps to achieve sufficient mixing of the gas and liquid and form uniform and fine mist particles when sprayed. The nozzle 52 is provided with a fine flow channel or nozzle hole inside to control the particle size and distribution range of the spray.

[0033] Furthermore, the nozzle 52 is a consumable part that may become worn or clogged during long-term use. Installing it in the middle of the connecting tube 51 facilitates maintenance and replacement. The nozzle 52 can be removed for cleaning or replacement simply by disassembling the connecting tube, without having to disassemble the entire nozzle assembly.

[0034] The parallel distance between the first and second pipes 1 and 2 matches the length of the connecting pipe 51, making the overall spatial layout of the moisturizing spray device more rational and compact. Proper control of the parallel distance avoids unnecessary space waste. The proper matching of the length of the connecting pipe 51 allows the nozzle 52 to be accurately positioned, achieving the optimal mixing ratio of gas and liquid and the best spray effect. This helps to form a uniform and fine spray, improving moisturizing effects and reducing waste.

[0035] The second pipe 2 is also equipped with a pressure gauge 23 for measuring the pressure within the pipe. This gauge monitors the delivery of the moisturizing liquid. Proper delivery pressure is crucial for creating a uniform, smooth spray. By adjusting the pressure within the pipe and observing changes in the spray quality, the operator can continuously optimize spray parameters, improving spray quality and moisturizing effectiveness. If the pressure within the pipe fluctuates abnormally or exceeds the set range, the pressure gauge 23 serves as a fault warning indicator. The reading on the pressure gauge allows the operator to quickly identify potential problems and take appropriate measures to prevent them from escalating or causing more serious consequences.

[0036] Furthermore, during operation, the liquid delivery pressure may need to be adjusted based on actual needs. Pressure gauge 23 provides an accurate reference for such adjustments. By adjusting the relevant valves and observing the changes in the pressure gauge 23 reading, the operator can precisely control the pressure in the pipeline to achieve the optimal spray effect.

[0037] The pneumatic ball valve 22 is mounted on the main pipeline 3 of the second pipeline 2 at one end away from the three-way connector 6. The pneumatic ball valve 22 controls the opening and closing of the valve through a pneumatic actuator (such as a cylinder or a pneumatic motor), thereby realizing flow control of the moisturizing liquid in the second pipeline 2. This control method is fast, accurate and reliable. When it is necessary to stop the fluid flow or perform maintenance, closing the pneumatic ball valve can cut off the fluid channel and protect other parts of the system from damage; the pressure gauge 23 is mounted on the main pipeline 3 of the second pipeline 2 at one end close to the three-way connector 6, and the filter 21 is mounted on the main pipeline 3 between the pneumatic ball valve 22 and the pressure gauge 23; the filter 21 can remove impurities and particulate matter in the fluid to prevent them from entering precision components such as the pneumatic ball valve 22, thereby protecting the system from damage; through filtration, the purity and quality of the fluid can be improved to ensure a more uniform and delicate spray effect.

[0038] The first pipeline 1 is also equipped with an electromagnetic pulse valve 12 for remote wireless control of the first pipeline 1. The electromagnetic pulse valve 12 can quickly respond to electrical signals, enabling rapid opening and closing of the valve, thereby achieving precise control of the gas flow in the first pipeline 1. A manual valve 13 is also installed between the electromagnetic pulse valve 12 and the filter pressure regulating valve 11. If the electromagnetic pulse valve 12 fails to control, the manual valve 13 can be used to control the opening and closing of the first pipeline 1. This provides an emergency control method when the automatic control system fails or manual intervention is required, improving the safety of the device. During maintenance and overhaul, closing the manual valve can isolate the electromagnetic pulse valve 12, facilitating independent operation and maintenance.

[0039] The nozzle assemblies 5 are evenly arranged on the branch pipes 4 of the first and second pipes 1 and 2, ensuring that the spray covers a wider area, reducing blind spots, and improving spray coverage and efficiency. The spacing between the nozzle assemblies 5 should be reasonably designed based on factors such as the spray effect and the size and shape of the workpiece. Excessive spacing may result in blind spots, while too small a spacing may increase system load and energy consumption.

[0040] A pipe cap 41 is mounted on the end of the branch pipe 4 away from the tee connector 6. This cap is used to seal the end of the branch pipe, preventing fluid (including gas and liquid) from leaking out. This helps maintain the device's tightness and ensures stable operation of the spray device under normal operating conditions.

[0041] Both the branch pipeline 4 and the main pipeline 3 are composed of multiple sections of straight pipe, which can be flexibly arranged according to the actual installation environment and spatial conditions. This modular design makes the first pipeline 1 and the second pipeline 2 easier to install, adjust, and maintain. Elbow connectors 7 are provided between the multiple sections of straight pipe. These elbow connectors 7 are used to connect straight pipes in different directions to form a complete piping system. They provide support and fixation within the device, distributing the weight and stress between the multiple sections of straight pipe, thereby enhancing the overall stability and reliability of the device.

[0042] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art will understand that the present invention includes, but is not limited to, the drawings and the contents described in the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the present invention are intended to be included within the scope of the claims.

Claims

1. A moisturizing spray device, characterized in that: The invention comprises a first pipeline (1) for compressing gas and a second pipeline (2) for conveying liquid; the first pipeline (1) and the second pipeline (2) are arranged in parallel, and both are provided with a main pipeline (3) and a branch pipeline (4) connected to each other; a plurality of nozzle assemblies (5) are provided between the first pipeline (1) and the branch pipeline (4) of the second pipeline (2); a filter pressure regulating valve (11) for regulating air pressure is provided on the main pipeline (3) of the first pipeline (1); and a filter (21) and a pneumatic ball valve (22) are provided on the main pipeline (3) of the second pipeline (2).

2. A moisturizing spray device according to claim 1, characterized in that: There are two branch pipelines (4), and a three-way connector (6) is provided between the two branch pipelines (4) and the main pipeline (3).

3. A moisturizing spray device according to claim 1, characterized in that: The plurality of nozzle assemblies (5) are evenly arranged between the first pipeline (1) and the branch pipeline (4) provided on the second pipeline (2).

4. A moisturizing spray device according to claim 1 or 3, characterized in that: The nozzle assembly (5) comprises a connecting pipe (51) and a nozzle (52); the nozzle (52) is assembled on the connecting pipe (51).

5. A moisturizing spray device according to claim 4, characterized in that: The length of the connecting pipe (51) matches the distance between the first pipe (1) and the second pipe (2).

6. The moisturizing spray device according to claim 1, characterized in that: The second pipeline (2) is also provided with a pressure gauge (23) for measuring the pressure value in the pipeline.

7. The moisturizing spray device according to claim 1, characterized in that: The pneumatic ball valve (22) is mounted on the main pipeline (3) of the second pipeline (2) at one end away from the three-way connector (6), the pressure gauge (23) is mounted on the main pipeline (3) of the second pipeline (2) at one end close to the three-way connector (6), and the filter (21) is mounted on the main pipeline (3) between the pneumatic ball valve (22) and the pressure gauge (23).

8. The moisturizing spray device according to claim 1, characterized in that: The first pipeline (1) is also provided with an electromagnetic pulse valve (12) for remote wireless control of the first pipeline (1).

9. The moisturizing spray device according to claim 1, characterized in that: One end of the branch pipe (4) away from the three-way connector (6) is equipped with a pipe cap (41).

10. The moisturizing spray device according to claim 1, characterized in that: The branch pipeline (4) and the main pipeline (3) are both composed of multiple sections of straight pipelines, and elbow connectors (7) are provided between the multiple sections of straight pipelines.