Spray gun based on emission right and emission amount

By integrating flow and gas concentration sensors into the spray gun, VOC emissions can be monitored and controlled in real time, solving the problem of uncontrolled emissions from the spray gun and achieving legal and compliant VOC emission management.

CN224181088UActive Publication Date: 2026-05-01GUANGDONG TONGHUI TECHNOLOGY INVESTMENT HOLDINGS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG TONGHUI TECHNOLOGY INVESTMENT HOLDINGS CO LTD
Filing Date
2025-05-12
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing spray guns emit VOCs waste gas without restraint during spraying operations, threatening the ecological environment and human health, and are difficult to control effectively.

Method used

Design a spray gun based on discharge rights and discharge volume, integrating a flow sensor and a gas concentration sensor. The control unit monitors and controls the total VOC emissions in real time, and the actuator stops the spray gun operation when the set threshold is reached.

Benefits of technology

It enables real-time monitoring and control of VOC emissions, ensuring legal and compliant emissions and reducing threats to the ecological environment and human health.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of spray guns, in particular to a spray gun based on discharge right and discharge capacity, which comprises a fixed seat, a spray gun body, a variable monitoring device, an execution device and a control unit, the fixed seat, the execution device and the control unit are respectively arranged on the spray gun body, the control unit is electrically connected with the spray gun body, and the variable monitoring device is arranged on the spray gun body. The variable monitoring device is arranged on the fixing base, and the variable monitoring device and the execution device are electrically connected with the control unit. According to the spray gun based on the emission right and the emission amount, the total emission amount of VOCs gas can be monitored and controlled in real time, legal and compliant emission is ensured, and threats to the ecological environment and human health are reduced.
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Description

A spray gun based on discharge rights and discharge volume Technical Field

[0001] This utility model relates to the field of spray gun technology, and in particular to a spray gun based on the right to discharge pollutants and the amount of pollutants discharged. Background Technology

[0002] my country implements strict controls on VOCs emissions, requiring polluting entities to install pollution prevention facilities to ensure that VOCs generated during their production and operation processes are fully collected, transported in sealed environments, and treated and purified to meet standards before being released into the public environment. However, when operators use spray guns to perform spraying operations outdoors or indoors, VOCs in the paint and organic solvents diffuse with the mist, being emitted into the surrounding environment without organization or control, posing a threat to the ecological environment, operators, and people in the vicinity, and the degree of pollution is difficult to control.

[0003] It is evident that existing technologies still need improvement and enhancement. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a spray gun based on the right to discharge pollutants and the amount of pollutants discharged, so as to solve the problem of the uncontrolled emission of VOCs waste gas into the environment by existing spray guns.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A spray gun based on discharge rights and discharge volume includes a fixed base, a spray gun body, a variable monitoring device, an actuator, and a control unit. The fixed base, the actuator, and the control unit are respectively mounted on the spray gun body. The control unit is electrically connected to the spray gun body. The variable monitoring device is mounted on the fixed base. The variable monitoring device and the actuator are respectively electrically connected to the control unit.

[0007] As described above, a spray gun based on discharge rights and discharge volume has an input module and a storage module integrated on the control unit, and the variable monitoring device includes a flow sensor.

[0008] As described above, in a spray gun based on discharge rights and discharge volume, the variable monitoring device includes a flow sensor and a gas concentration sensor. The flow sensor is located on the input end of the spray gun body, and the gas concentration sensor is located on the side of the mounting base facing the output end of the spray gun body.

[0009] As described above, a spray gun based on discharge rights and discharge volume includes a fixed base comprising a fixed plate, an extension cylinder, a drive mechanism, a support frame, a partition cover, and a connector. The spray gun body is mounted on the fixed plate. The extension cylinder is located on one side of the fixed plate along the airflow direction of the spray gun body. The drive mechanism is located inside the extension cylinder and electrically connected to the control unit. The support frame is located on the output end of the drive mechanism. The partition cover is located on the side of the support frame away from the drive mechanism and covers the side of the extension cylinder away from the fixed plate. The gas concentration sensor is located inside the support frame. One end of the connector is connected to the extension cylinder, and the other end of the connector is sleeved on the spray gun body. The flow sensor is located on the side of the fixed plate opposite to the extension cylinder.

[0010] As described above, a spray gun based on discharge rights and discharge volume includes an extension cylinder comprising a supporting inner cylinder and a heat-insulating outer cylinder. The two ends of the supporting inner cylinder are respectively connected to the fixing plate and the connector. The heat-insulating outer cylinder is sleeved on the outside of the supporting inner cylinder. The heat-insulating outer cylinder is made of silicon carbide ceramic, and the partition cover is made of silicon carbide ceramic.

[0011] As described above, in a spray gun based on discharge rights and discharge volume, the actuator includes a relay integrated within the control unit, the relay being electrically connected to the spray gun body.

[0012] As described above, in a spray gun based on discharge rights and discharge volume, the actuator includes a microcontroller integrated within the control unit, the microcontroller being electrically connected to the spray gun body.

[0013] As described above, in a spray gun based on discharge rights and discharge volume, the actuator includes a solenoid valve, which is located on one side of the input end of the spray gun body and electrically connected to the control unit.

[0014] As described above, a spray gun based on discharge rights and discharge volume includes a liquid pipe, an air pipe, a sleeve, a nozzle, a connecting sleeve, and a protective tube. The liquid pipe has a liquid inlet at its lower end, and the air pipe has an air inlet at its lower end. The nozzle, the sleeve, the air pipe, and the liquid pipe are connected in sequence. The connecting sleeve and the protective tube are sequentially sleeved on the air pipe, and the connecting sleeve connects the air pipe and the protective tube.

[0015] Beneficial effects:

[0016] This utility model discloses a spray gun based on discharge rights and discharge volume, comprising a fixed base, a spray gun body, a variable monitoring device, an actuator, and a control unit. The control unit includes an STM32 system. The variable monitoring device is fixed to the spray gun body via the fixed base. The variable monitoring device monitors the total amount of VOCs gas contained in the paint sprayed from the spray gun body in real time and uploads the data to the control unit. When a set threshold for the total VOCs gas emission is reached, the control unit controls the actuator to stop the spray gun body from operating, thereby controlling the total VOCs emission. This spray gun, based on discharge rights and discharge volume, can monitor and control the total VOCs gas emission in real time, ensuring legal and compliant emissions and reducing threats to the ecological environment and human health. Attached Figure Description

[0017] Figure 1 is a structural schematic diagram of the spray gun assembly provided by this utility model;

[0018] Figure 2 is an exploded view of the spray gun assembly provided by this utility model;

[0019] Reference numerals: 1. Fixing base; 11. Fixing plate; 12. Extension tube; 121. Supporting inner tube; 122. Insulated outer tube; 13. Drive mechanism; 14. Support frame; 15. Partition cover; 16. Connector; 2. Spray gun body; 21. Liquid pipe; 22. Air pipe; 23. Sleeve; 24. Nozzle; 25. Connecting sleeve; 26. Protective tube; 3. Variable monitoring device; 4. Actuating device; 5. Control unit. Detailed Implementation

[0020] This utility model provides a spray gun based on the right to discharge sewage and the amount of sewage discharged. To make the purpose, technical solution and effect of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments.

[0021] In the description of this utility model, it should be understood that the terms "top" and other terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and should not be construed as limiting this utility model; in addition, the terms "installation" and "connection" should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] As shown in Figures 1-2, this application embodiment proposes a spray gun based on discharge rights and discharge volume, including a fixed base 1, a spray gun body 2, a variable monitoring device 3, an execution device 4, and a control unit 5. The fixed base 1, the execution device 4, and the control unit 5 are respectively disposed on the spray gun body 2. The control unit 5 is electrically connected to the spray gun body 2. The variable monitoring device 3 is disposed on the fixed base 1. The variable monitoring device 3 and the execution device 4 are respectively electrically connected to the control unit 5.

[0023] This utility model discloses a spray gun based on discharge rights and discharge volume, comprising a fixed base 1, a spray gun body 2, a variable monitoring device 3, an actuator 4, and a control unit 5. The control unit 5 includes an STM32 system. The variable monitoring device 3 is fixed to the spray gun body 2 via the fixed base 1. The variable monitoring device 3 monitors the total amount of VOCs gas contained in the paint sprayed from the spray gun body 2 in real time and uploads the data to the control unit 5. When a set threshold for the total VOCs gas content is reached, the control unit 5 controls the actuator 4 to stop the operation of the spray gun body 2, thereby controlling the total VOCs emission. This application discloses a spray gun based on discharge rights and discharge volume, which can monitor and control the total VOCs gas emission in real time, ensuring legal and compliant emissions and reducing threats to the ecological environment and human health.

[0024] In this embodiment, the control unit 5 integrates an input module and a storage module, and the variable monitoring device 3 includes a flow sensor. When the concentration of VOCs in the exhaust gas is known, the VOCs emission amount can be obtained by manually inputting the data through the input module and storage module, combined with the total amount of paint emissions detected by the flow sensor.

[0025] In other embodiments, the control unit 5 of this application further includes a communication module, which interacts with the control center or a remote terminal to remotely set data such as the threshold of VOCs gas emissions and VOCs gas concentration. It also has data recording and uploading functions, which facilitates real-time monitoring and analysis by the control center.

[0026] In this embodiment, the variable monitoring device 3 includes a flow sensor and a gas concentration sensor. The flow sensor is located on the input end of the spray gun body 2, and the gas concentration sensor is located on the side of the fixed base 1 facing the output end of the spray gun body 2. When the VOCs gas concentration in the exhaust gas is unknown or the VOCs gas concentration is unstable, the gas concentration sensor detects the VOCs gas concentration in the spraying area, and combined with the total amount of paint emission detected by the flow sensor, the VOCs gas emission amount is obtained.

[0027] The mounting base 1 includes a mounting plate 11, an extension cylinder 12, a drive mechanism 13, a support frame 14, a partition cover 15, and a connector 16. The spray gun body 2 passes through the mounting plate 11. The extension cylinder 12 is located on one side of the mounting plate 11 along the airflow direction of the spray gun body 2. The drive mechanism 13 is located inside the extension cylinder 12 and is electrically connected to the control unit 5. The support frame 14 is located on the output end of the drive mechanism 13. The partition cover 15 is located on the side of the support frame 14 away from the drive mechanism 13 and covers the side of the extension cylinder 12 away from the mounting plate 11. The gas concentration sensor is located on... Inside the support frame 14, one end of the connector 16 is connected to the extension cylinder 12, and the other end of the connector 16 is sleeved on the spray gun body 2. The flow sensor is located on the side of the fixing plate 11 facing away from the extension cylinder 12. The extension cylinder 12 connects the fixing plate 11 and the connector 16. The spray gun body 2 is fixed to the fixing plate 11 and the connector 16. The drive mechanism 13 and the support frame 14 are located inside the extension cylinder 12. The support frame 14 is used to place the gas concentration sensor. The partition cover 15 separates the inside of the extension cylinder 12 from the inner cavity of the incineration equipment, isolating the high temperature inside the incineration equipment.

[0028] The extension cylinder 12 includes a supporting inner cylinder 121 and a heat-insulating outer cylinder 122. The two ends of the supporting inner cylinder 121 are respectively connected to the fixing plate 11 and the connector 16. The heat-insulating outer cylinder 122 is sleeved on the outside of the supporting inner cylinder 121. The heat-insulating outer cylinder 122 is made of silicon carbide ceramic. The partition cover 15 is made of silicon carbide ceramic to prevent heat from the incineration equipment from entering the extension cylinder 12 and to ensure the normal operation of the drive mechanism 13 and the gas concentration sensor.

[0029] The actuator 4 includes a relay integrated into the control unit 5. The relay is electrically connected to the spray gun body 2. The power supply of the spray gun body 2 is switched by the relay to stop the operation of the spray gun body 2.

[0030] The actuator 4 includes a microcontroller integrated in the control unit 5. The microcontroller is electrically connected to the spray gun body 2. The microcontroller interrupts the control signal of the spray gun body 2 to stop the operation of the spray gun body 2.

[0031] The actuator 4 includes a solenoid valve, which is located on one side of the input end of the spray gun body 2 and is electrically connected to the control unit 5. The solenoid valve cuts off the exhaust gas supply to the spray gun body 2 to stop the operation of the spray gun body 2.

[0032] The spray gun body 2 includes a liquid pipe 21, an air pipe 22, a sleeve 23, a nozzle 24, a connecting sleeve 25, and a protective tube 26. The liquid pipe 21 has a liquid inlet 27 at its lower end, and the air pipe 22 has an air inlet 28 at its lower end. The nozzle 24, the sleeve 23, the air pipe 22, and the liquid pipe 21 are connected in sequence. The connecting sleeve 25 and the protective tube 26 are sequentially sleeved on the air pipe 22. The connecting sleeve 25 connects the air pipe 22 and the protective tube 26. The protective tube 26 isolates the front end of the spray gun body 2 from the inner cavity of the incineration equipment, providing a certain degree of heat insulation and protection.

[0033] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of this utility model.

Claims

1. A spray gun based on discharge rights and discharge volume, characterized in that, The device includes a fixed base (1), a spray gun body (2), a variable monitoring device (3), an actuator (4), and a control unit (5). The fixed base (1), the actuator (4), and the control unit (5) are respectively mounted on the spray gun body (2). The control unit (5) is electrically connected to the spray gun body (2). The variable monitoring device (3) is mounted on the fixed base (1). The variable monitoring device (3) and the actuator (4) are respectively electrically connected to the control unit (5).

2. The lance based on emission rights and emission quantities according to claim 1, characterized in that The control unit (5) integrates an input module and a storage module, and the variable monitoring device (3) includes a flow sensor.

3. The lance based on emission rights and emission quantities according to claim 1, characterized in that The variable monitoring device (3) includes a flow sensor and a gas concentration sensor. The flow sensor is located on the input end of the spray gun body (2), and the gas concentration sensor is located on the side of the fixed base (1) facing the output end of the spray gun body (2).

4. The lance according to claim 3, wherein The fixed base (1) includes a fixed plate (11), an extension tube (12), a drive mechanism (13), a support frame (14), a partition cover (15), and a connector (16). The spray gun body (2) is mounted on the fixed plate (11). The extension tube (12) is located on one side of the fixed plate (11) along the airflow direction of the spray gun body (2). The drive mechanism (13) is located inside the extension tube (12) and is electrically connected to the control unit (5). The support frame (14) is located at the output end of the drive mechanism (13). The partition cover (15) is located on the side of the support frame (14) away from the drive mechanism (13). The partition cover (15) covers the side of the extension tube (12) away from the fixed plate (11). The gas concentration sensor is located inside the support frame (14). One end of the connector (16) is connected to the extension tube (12). The other end of the connector (16) is sleeved on the spray gun body (2). The flow sensor is located on the side of the fixed plate (11) facing away from the extension tube (12).

5. The lance according to claim 4, wherein The extension tube (12) includes a supporting inner tube (121) and a heat-insulating outer tube (122). The two ends of the supporting inner tube (121) are connected to the fixing plate (11) and the connector (16) respectively. The heat-insulating outer tube (122) is sleeved on the outside of the supporting inner tube (121). The heat-insulating outer tube (122) is a heat-insulating outer tube made of silicon carbide ceramic. The partition cover (15) is a partition cover made of silicon carbide ceramic.

6. A spray gun based on discharge rights and discharge volume according to claim 1, characterized in that, The actuator (4) includes a relay integrated within the control unit (5), which is electrically connected to the spray gun body (2).

7. The lance according to claim 1, wherein The actuator (4) includes a microcontroller integrated within the control unit (5), which is electrically connected to the spray gun body (2).

8. The lance according to claim 1, wherein The actuator (4) includes a solenoid valve, which is located on the input side of the spray gun body (2) and electrically connected to the control unit (5).

9. The lance according to claim 1, wherein The spray gun body (2) includes a liquid pipe (21), an air pipe (22), a sleeve (23), a nozzle (24), a connecting sleeve (25), and a protective tube (26). The liquid pipe (21) has a liquid inlet (27) at its bottom and the air pipe (22) has an air inlet (28) at its bottom. The nozzle (24), the sleeve (23), the air pipe (22), and the liquid pipe (21) are connected in sequence. The connecting sleeve (25) and the protective tube (26) are fitted onto the air pipe (22) in sequence. The connecting sleeve (25) connects the air pipe (22) and the protective tube (26).