Quantitative liquid adding spraying system

Abstract

The utility model relates to a liquid quantitative adding spraying system which is characterized in that a pressure barrel is arranged on a weighing scale, a liquid outlet connector of a normal-pressure liquid tank is connected with a liquid inlet connector of the pressure barrel through a liquid inlet pipe, a flow adjusting assembly is arranged on the liquid inlet pipe, an exhaust pipe is connected to an exhaust connector of the pressure barrel, an exhaust valve is arranged on the exhaust pipe, and the pressure barrel is connected with a liquid outlet of the normal-pressure liquid tank. A liquid outlet connector of the pressure barrel is connected with a liquid outlet main pipe, the liquid outlet main pipe is provided with a liquid outlet valve, the liquid outlet end of the liquid outlet main pipe is connected with a plurality of liquid outlet branch pipes, and the liquid outlet end of each liquid outlet branch pipe is connected with an atomizing nozzle; an air outlet connector of the air inlet valve is connected with an air inlet connector of the pressure barrel, an air outlet connector of the pressure regulating filter is connected with an air inlet connector of the air inlet valve, and an air outlet connector of the air storage tank is connected with an air inlet connector of the pressure regulating filter through an air inlet pipe. The safety, the stability and the working efficiency of the spraying system can be improved, the debugging difficulty can be effectively reduced after the spraying system is used, and the use and maintenance cost is saved.

Description

Technical Field

[0001] This utility model relates to a liquid addition system mainly used in the fields of grain, food, and chemical industry. Specifically, this utility model discloses a liquid metering spray system. Background Technology

[0002] With the continuous development of my country's food industry, the requirements for safety, food hygiene, working environment and automation of production line processing modes are getting higher and higher. In order to avoid uneven addition of liquid affecting the mixing effect of powder, it is usually necessary to atomize the liquid to make the spraying uniform.

[0003] Pressure atomization methods include: ① Increasing liquid pressure, i.e., using high-pressure atomizing nozzles, where high pressure forces the liquid through tiny orifices, causing it to break into droplets due to surface tension and air resistance when ejected at high speed. The pressure is typically greater than 10 bar. ② Using compressed gas to atomize the liquid, i.e., using low-pressure atomizing nozzles, where the kinetic energy of the high-speed airflow shears the liquid, achieving atomization. The pressure is typically less than 5 bar.

[0004] High-pressure atomizing nozzles typically use mechanical pumps, i.e., hydraulic pumps, as a power source. Hydraulic pumps are complex, expensive, and have high power consumption, increasing operating costs. Various types of hydraulic pumps are noisy, and some require noise reduction measures. Due to the high pressure of the liquid, sealing is poor, leakage is significant, and resistance to contamination is low. Pressure variations in long-distance delivery systems are not suitable for constant operation; the actual pressure may differ significantly from the expected design pressure, affecting the nozzle's spray effect and increasing testing and debugging costs. When the system malfunctions, the cause is difficult to locate, and high-pressure atomization systems require numerous supporting devices, increasing maintenance costs and delaying production schedules.

[0005] Low-pressure atomizing nozzle: Compressed air is rapidly ejected from the nozzle air path, forming a low-pressure zone. Due to the pressure difference, liquid flows out from the nozzle liquid path. Compressed air and liquid mix before being ejected, which affects the liquid's performance. When sprayed onto food, it cannot achieve the expected effect. Furthermore, if the compressed air is contaminated, it will also affect the liquid quality. Mixing oily media with air will also affect the system's safety. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a liquid metering spray system that can improve safety, stability and working efficiency.

[0007] According to the technical solution provided by this utility model, the liquid quantitative addition spray system includes an atmospheric pressure liquid tank, a gas storage tank, a pressure tank, a weighing scale, a flow regulating component, an atomizing nozzle, an exhaust pipe, a liquid inlet pipe, a liquid outlet main pipe, an air inlet valve, a liquid outlet valve, an exhaust valve, a liquid outlet branch pipe, a pressure regulating filter, and an air inlet pipe; the atmospheric pressure liquid tank has a liquid inlet interface and a liquid outlet interface, the gas storage tank has an air inlet interface and an air outlet interface, and the pressure tank has an air inlet interface, an exhaust interface, a liquid inlet interface, and a liquid outlet interface;

[0008] The pressure tank is installed on the weighing scale. The liquid outlet of the atmospheric pressure liquid tank is connected to the liquid inlet of the pressure tank through a liquid inlet pipe. The liquid inlet pipe is equipped with the flow regulating component. The liquid outlet of the pressure tank is connected to the vent pipe. The vent pipe is equipped with the vent valve. The liquid outlet of the pressure tank is connected to the main liquid outlet pipe. The main liquid outlet pipe is equipped with a liquid outlet valve. Several branch liquid outlet pipes are connected to the liquid outlet end of the main liquid outlet pipe. The atomizing nozzle is connected to the liquid outlet end of each branch liquid outlet pipe.

[0009] The air outlet of the air inlet valve is connected to the air inlet of the pressure tank, the air outlet of the pressure regulating filter is connected to the air inlet of the air inlet valve, and the air outlet of the air storage tank is connected to the air inlet of the pressure regulating filter through an air inlet pipe.

[0010] Preferably, the atmospheric pressure liquid tank includes an atmospheric pressure liquid tank cover and an atmospheric pressure liquid tank body, with the liquid inlet of the atmospheric pressure liquid tank located at the top side of the tank body and the liquid outlet of the atmospheric pressure liquid tank located at the bottom side of the tank body.

[0011] Preferably, the pressure tank includes a pressure tank cover and a pressure tank body. The air inlet, exhaust outlet and liquid inlet of the pressure tank are all located on the pressure tank cover, and the liquid outlet of the pressure tank is located on the bottom side of the pressure tank body.

[0012] This invention relates to an atomization system that can quantitatively add liquid to powder after atomization. This invention can improve the safety, stability and working efficiency of the spray system. After use, this invention can also effectively reduce the difficulty of debugging and save on usage and maintenance costs. Attached Figure Description

[0013] Figure 1 This is one of the perspective views of this utility model.

[0014] Figure 2 This is the second perspective view of this utility model.

[0015] Explanation of reference numerals in the attached diagram: 1. Atmospheric pressure liquid tank; 2. Gas storage tank; 3. Pressure tank; 4. Weighing scale; 5. Flow regulating component; 6. Atomizing nozzle; 7. Exhaust pipe; 8. Liquid inlet pipe; 9. Main liquid outlet pipe; 10. Air inlet valve; 11. Liquid outlet valve; 12. Exhaust valve; 13. Liquid outlet branch pipe; 14. Pressure regulating filter; 15. Air inlet pipe. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] A liquid metering spray system, such as Figure 1 and Figure 2 As shown, the system includes an atmospheric pressure liquid tank 1, a gas storage tank 2, a pressure tank 3, a weighing scale 4, a flow regulating component 5, an atomizing nozzle 6, an exhaust pipe 7, a liquid inlet pipe 8, a liquid outlet main pipe 9, an air inlet valve 10, a liquid outlet valve 11, an exhaust valve 12, a liquid outlet branch pipe 13, a pressure regulating filter 14, and an air inlet pipe 15. The atmospheric pressure liquid tank 1 has a liquid inlet interface and a liquid outlet interface, the gas storage tank 2 has an air inlet interface and an air outlet interface, and the pressure tank 3 has an air inlet interface, an exhaust interface, a liquid inlet interface, and a liquid outlet interface.

[0018] The pressure tank 3 is installed on the weighing scale 4. The liquid outlet of the atmospheric pressure liquid tank 1 is connected to the liquid inlet of the pressure tank 3 through the liquid inlet pipe 8. The flow regulating component 5 is provided on the liquid inlet pipe 8. The exhaust pipe 7 is connected to the exhaust port of the pressure tank 3. The exhaust valve 12 is provided on the exhaust pipe 7. The liquid outlet main pipe 9 is connected to the liquid outlet port of the pressure tank 3. The liquid outlet main pipe 9 is provided with the liquid outlet valve 11. Several liquid outlet branch pipes 13 are connected to the liquid outlet end of the liquid outlet main pipe 9. The atomizing nozzle 6 is connected to the liquid outlet end of each liquid outlet branch pipe 13.

[0019] The air outlet of the air inlet valve 10 is connected to the air inlet of the pressure tank 3, the air outlet of the pressure regulating filter 14 is connected to the air inlet of the air inlet valve 10, and the air outlet of the air storage tank 2 is connected to the air inlet of the pressure regulating filter 14 through the air inlet pipe 15.

[0020] The atmospheric pressure liquid tank 1 includes an atmospheric pressure liquid tank cover and an atmospheric pressure liquid tank body. The liquid inlet of the atmospheric pressure liquid tank 1 is located on the top side of the atmospheric pressure liquid tank body, and the liquid outlet of the atmospheric pressure liquid tank 1 is located on the bottom side of the atmospheric pressure liquid tank body.

[0021] The pressure tank 3 includes a pressure tank cover and a pressure tank body. The air inlet, exhaust outlet and liquid inlet of the pressure tank 3 are all located on the pressure tank cover, and the liquid outlet of the pressure tank 3 is located on the bottom side of the pressure tank body.

[0022] The working principle of this utility model is as follows:

[0023] Due to the height difference, the liquid inside the storage tank 1 flows into the pressure tank 3 through the inlet pipe 8 and the flow regulating component 5 under the influence of gravity. At this time, the air inlet valve 10 and the outlet valve 11 are closed, and the exhaust valve 12 is open. When the oil volume in the pressure tank 3 approaches the set injection volume, the system adjusts the flow rate through the flow regulating component 5 to achieve fine control of the oil inlet volume, thereby ensuring that the weighing scale 4 measures the required injection volume. When the weighing scale 4 reaches the set value, the air inlet valve 10 opens, and the flow regulating component 5 and the exhaust valve 12 close. When the outlet valve 11 is opened, compressed air is supplied from the outlet port of the air storage tank 2 and enters the pressure tank 3 through the inlet pipe 15, the pressure regulating filter 14 and the inlet valve 10. Under the action of compressed air, oil flows from the outlet main pipe 9 to several outlet branch pipes 13 and the atomizing nozzle 6 installed at the outlet end of each outlet branch pipe 13. After the oil is atomized and sprayed within a specified time, the inlet valve 10 is closed and the exhaust valve 12 is opened. The remaining compressed air in the pipeline and pressure tank 3 is discharged through the exhaust pipe 7 to reach the normal pressure state, and then the outlet valve 11 is closed.

[0024] This process uses pneumatic control and compressed air as the power source. Since the gas and liquid do not mix, it does not affect the liquid's usage state, does not contaminate the liquid, meets food hygiene requirements, improves the system's safety and stability, is easy to maintain and adjust, has low noise, and does not affect the working environment.

[0025] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A liquid metering spray system, comprising an atmospheric pressure liquid tank (1), a gas storage tank (2), a pressure tank (3), a weighing scale (4), a flow regulating component (5), an atomizing nozzle (6), an exhaust pipe (7), a liquid inlet pipe (8), a liquid outlet main pipe (9), an air inlet valve (10), a liquid outlet valve (11), an exhaust valve (12), a liquid outlet branch pipe (13), a pressure regulating filter (14), and an air inlet pipe (15); wherein the atmospheric pressure liquid tank (1) has a liquid inlet interface and a liquid outlet interface, the gas storage tank (2) has an air inlet interface and an air outlet interface, and the pressure tank (3) has an air inlet interface, an exhaust interface, a liquid inlet interface, and a liquid outlet interface; The application is characterized in that The pressure tank (3) is set on the weighing scale (4). The outlet of the atmospheric pressure liquid tank (1) is connected to the inlet of the pressure tank (3) through the inlet pipe (8). The flow regulating component (5) is provided on the inlet pipe (8). The exhaust pipe (7) is connected to the exhaust port of the pressure tank (3). The exhaust valve (12) is provided on the exhaust pipe (7). The outlet main pipe (9) is connected to the outlet port of the pressure tank (3). The outlet valve (11) is provided on the outlet main pipe (9). Several outlet branch pipes (13) are connected to the outlet end of the outlet main pipe (9). The atomizing nozzle (6) is connected to the outlet end of each outlet branch pipe (13). The air outlet of the air inlet valve (10) is connected to the air inlet of the pressure tank (3), the air outlet of the pressure regulating filter (14) is connected to the air inlet of the air inlet valve (10), and the air outlet of the air storage tank (2) is connected to the air inlet of the pressure regulating filter (14) through the air inlet pipe (15).

2. The liquid metering spray system as described in claim 1, characterized in that: The atmospheric pressure liquid tank (1) includes an atmospheric pressure liquid tank cover and an atmospheric pressure liquid tank body. The liquid inlet of the atmospheric pressure liquid tank (1) is located on the top side of the atmospheric pressure liquid tank body, and the liquid outlet of the atmospheric pressure liquid tank (1) is located on the bottom side of the atmospheric pressure liquid tank body.

3. The liquid metering spray system as described in claim 1, characterized in that: The pressure tank (3) includes a pressure tank cover and a pressure tank body. The air inlet, exhaust outlet and liquid inlet of the pressure tank (3) are all located on the pressure tank cover, and the liquid outlet of the pressure tank (3) is located on the bottom side of the pressure tank body.

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