Spraying terminal for remotely treating leakage of liquid hazardous chemical substances

Abstract

The invention discloses a spraying terminal for remotely treating liquid hazardous chemical substance leakage, and relates to the field of hazardous chemical substance leakage treatment. The problems that in the prior art, due to insufficient safety of a spray gun, small protection radius of a spray robot, limited handling capacity and the like, large-scale liquid hazardous chemical accidents cannot be handled, the handling effect is poor, and safety is poor are solved. The spraying terminal comprises a remote controller and a self-walking robot, and the self-walking robot comprises an angle-adjustable support, a spraying device installed on the support and a control valve set used for controlling the spraying device and the support. The explosion-proof automatic walking robot is small in size, strong in obstacle crossing ability and high in whole machine safety, and can replace personnel to enter a dangerous place for operation through remote control. The spraying terminal does not carry chemicals and is connected with an external chemical supply system through a pipeline, the chemicals are supplied remotely through the supply system, and the requirement for the handling capacity of large leakage accidents is met.

Description

Technical Field

[0001] The invention relates to the technical field of liquid hazardous chemical leakage disposal, in particular to terminal equipment for spraying protective agents in the disposal of large-scale organic liquid hazardous chemical leakage accidents. Background Art

[0002] During the production, storage, transportation, and use of petrochemicals and hazardous chemicals, leakage may occur for various reasons, thus causing liquid hazardous chemical accidents. Liquid hazardous chemicals are flammable, explosive, toxic, corrosive, and so on. After a liquid hazardous chemical leakage accident occurs, it is very easy to cause great harm to personnel, facilities, and the environment. Liquid hazardous chemical accidents are sudden, urgent, complex, and highly lethal. Therefore, they are extremely difficult to handle. Once they are handled improperly or not in time, chain accidents such as fire and explosion are very likely to occur.

[0003] After a liquid hazardous chemical accident occurs, rapid and correct disposal of the leaked material can effectively prevent secondary disasters such as fire, explosion, poisoning, and environmental pollution, and reduce the harm. However, the existing technology for handling liquid hazardous chemical disasters has the defects of low emergency disposal efficiency and large casualties. The core reason is that it is impossible to completely suppress the volatilization of harmful gases, making it difficult to prevent the occurrence of secondary disasters such as fire, explosion, and poisoning.

[0004] Polymer absorbent is a new type of treatment material for organic liquid hazardous chemicals, which can effectively absorb liquid hazardous chemicals. After the liquid hazardous chemicals leak, it can quickly absorb the hazardous chemicals into solid substances, and the absorbed hazardous chemicals will not leak again. After the leaked liquid is solidified by the absorbent, in order to prevent the continued generation of volatile gases, it is necessary to spray a layer of gel inhibitor on the surface of the solid substance, so as to thoroughly and effectively deal with the leakage of liquid hazardous chemicals and ensure the safety of the accident disposal process.

[0005] Patent CN212067515U discloses a cart-type organic liquid hazardous chemical leakage disposal device, which can be filled with dozens of kilograms of absorbent and can handle leakage of typical organic liquid hazardous chemicals such as hundreds of liters of gasoline. However, this patent requires emergency rescue personnel to use a matching handheld spray gun and spray the agent at close range to deal with the accident. Due to the complex situation on the scene, there are a large number of flammable, explosive or toxic and harmful gases, as well as many unsafe behaviors of people and unsafe factors of things, which can easily cause secondary disasters and endanger personal and property safety.

[0006] Patent CN114669422A discloses a powder spraying robot for handling leaks of organic liquid hazardous chemicals, including a crawler robot body, a telescopic arm system, a powder spraying system, a monitoring system and a hydraulic power unit. The front end of the telescopic arm is fixedly installed with a powder spraying hood with a spray head, and the tail end is fixedly installed with a reel connected to the powder spraying system. Its technical effect is to spray powder evenly on the leaking area through the spray head in the powder spraying hood at the front end of the mechanical arm, quickly solidify liquid hazardous chemicals, intercept the flow of hazardous chemicals, and achieve both terrain adaptability and remote control to handle hazardous chemical leaks. However, the patent is firstly limited by the size of the mechanical arm, resulting in a small protection radius; secondly, due to the limited size of the powder storage tank it carries, the handling capacity is limited to small-scale leaks; and thirdly, it does not have the function of spraying inhibitors, resulting in limited application. Summary of the invention

[0007] The purpose of the present invention is to solve the problem that the existing technology cannot cope with large-scale liquid hazardous chemical accidents and has poor disposal effects and poor safety due to the lack of safety of spray guns, small protection radius of spray robots and limited disposal capabilities. The present invention provides a spray terminal for remote disposal of liquid hazardous chemical leaks. The equipment adopts an explosion-proof automatic walking robot with a small size and strong obstacle-crossing capability. The whole machine has high safety and can replace personnel to enter dangerous places for operations through remote control. The spray terminal itself does not carry medicines, but is connected to an external medicine supply system through a pipeline, and the medicines are remotely supplied through the supply system to meet the disposal capability requirements of large-scale leakage accidents.

[0008] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0009] In a first aspect, the present invention provides a spraying terminal for remotely disposing of leaks of liquid hazardous chemicals, comprising a remote controller and a self-propelled robot, wherein the self-propelled robot comprises an angle-adjustable bracket, a spraying device mounted on the bracket, and a control valve group for controlling the spraying device and the bracket.

[0010] Furthermore, the control valve group is provided with a supply interface, and the supply interface is used to connect to an external medicine supply system.

[0011] Furthermore, the supply interface includes an absorbent interface, an inhibitor interface and a driving gas source connector, and is connected to an external drug supply system through pipelines respectively.

[0012] Furthermore, the spraying device includes a spraying cylinder, an impeller arranged at the end of the spraying cylinder, a driving motor for driving the impeller to rotate, a first nozzle arranged at the axis of the spraying cylinder, a second nozzle arranged on the circumference of the front end of the spraying cylinder, a first spraying pipeline, a second spraying pipeline and an air pipeline respectively connected to the control valve group, and a driving motor support frame, and the driving motor is installed on the driving motor support frame.

[0013] Furthermore, bearings are provided on both sides of the bracket, the bearings are connected to the legs, the legs are fixedly connected to the outside of the spray cylinder, and cylinders are provided on both sides of the bracket, and the cylinders are connected to the spray cylinder and the bracket in a hinged manner.

[0014] Furthermore, the control valve group includes a first control valve group connected to the first spray pipeline, a second control valve group connected to the second spray pipeline, and a third control valve group connected to the air pipeline.

[0015] Furthermore, the first nozzle is a single-hole direct current nozzle, and the first spray pipeline extends from an outer wall of one side of the spray cylinder to the inside of the spray cylinder, connecting the first control valve group with the first spray nozzle.

[0016] Furthermore, the second nozzle is an atomizing nozzle group, including a distribution ring and multiple atomizing nozzles arranged on a circumference, and the second spray pipeline is arranged around the edge of the spraying side of the spray cylinder to connect the second control valve group with the distribution ring of the second spray nozzle.

[0017] Furthermore, the driving motor is a pneumatic motor, and the air pipeline extends from the outer wall of the other side of the spray cylinder to the inside of the spray cylinder, connecting the third control valve group with the pneumatic motor.

[0018] Furthermore, the self-propelled robot is provided with a control module, and the bracket is provided with a camera and an obstacle avoidance sensor; the control module, the camera and the obstacle avoidance sensor are all in wireless communication with the remote controller.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] 1. The present invention involves a spraying terminal for remote disposal of liquid hazardous chemical leakage. An operator can remotely operate a self-propelled robot and a spraying device by operating a remote controller. The operator does not need to contact the complex environment on site, thereby ensuring the personal safety of the operator.

[0021] The spray terminal is used in conjunction with an external agent supply system. You only need to park the agent supply system at a distance, and connect the supply interface with the agent supply system and the spray terminal through a pipeline to quickly carry out emergency rescue work. The spray terminal is small in size, and the safety of the equipment itself is improved through electrical explosion-proof design and pneumatic drive. Operators can stay away from the accident site and operate the remote control to remotely control the spray device for disposal without entering the front line, ensuring personal safety. At the same time, it can also solve the problem that the treatment device in the existing technology carries a limited amount of medicine, cannot cope with large-scale accidents, and has poor disposal effects.

[0022] After the operator is connected to the supply system through the delivery pipeline, the pneumatic motor can be turned on by operating the remote control to drive the impeller to generate a boost airflow; by operating the remote control, the agent in the supply system can be passed through the interface to the first spray nozzle and the second spray nozzle, and the boost airflow generated by the impeller is sprayed out from the center of the cylinder, thereby improving the agent spraying distance and spraying effect. The present invention realizes the spraying of two passages at the same time, and the two spray pipelines can be fed with two agents as needed, which can provide a better emergency rescue strategy in the face of large-scale liquid hazardous chemical leakage accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of a spray terminal for remotely disposing of liquid hazardous chemical leakage provided in an embodiment of the present invention Figure 1 .

[0024] Figure 2 A schematic diagram of a spray terminal for remotely disposing of liquid hazardous chemical leakage provided in an embodiment of the present invention Figure 2 .

[0025] Figure 3 A cross-sectional view of a spraying device of a spraying terminal for remotely disposing of liquid hazardous chemical leakage provided in an embodiment of the present invention.

[0026] Figure 4 A schematic diagram of the structure of a spraying device of a spraying terminal for remotely disposing of liquid hazardous chemical leakage provided in an embodiment of the present invention Figure 1 .

[0027] Figure 5 A schematic diagram of the structure of a spraying device of a spraying terminal for remotely disposing of liquid hazardous chemical leakage provided in an embodiment of the present invention Figure 2 .

[0028] The accompanying drawings are marked with: 1-track chassis, 2-supply interface, 3-bracket, 4-spraying device, 5-control valve group, 6-leg, 7-cylinder, 8-first spraying pipeline, 9-spraying cylinder, 10-impeller, 11-drive motor, 12-drive motor support frame, 13-second nozzle, 14-first nozzle, 15-second spraying pipeline.

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. DETAILED DESCRIPTION

[0031] The present invention provides a spray terminal for remotely disposing of liquid hazardous chemical leakage. Figure 1 and Figure 2 , including a remote controller and a self-propelled robot, wherein the self-propelled robot includes an angle-adjustable bracket 3, a spraying device 4 installed on the bracket 3, and a control valve group 5 for controlling the spraying device 4 and the bracket 3.

[0032] It is understandable that the operator can remotely operate the self-propelled robot and the spraying device 4 by operating the remote control, and the operator does not need to contact the complex environment on site, which ensures the personal safety of the operator. The spraying angle and range of the spraying device 4 can be adjusted by adjusting the angle of the bracket 3, which is extremely flexible. In addition, by setting the control valve group 5, the spraying device 4 can be flexibly controlled to meet the requirements of the handling capacity of large-scale leakage accidents. It solves the problem that the prior art cannot cope with large-scale liquid hazardous chemical accidents and has poor handling effects and poor safety due to insufficient safety of the spray gun, small protection radius of the spray robot and limited handling capacity.

[0033] In some embodiments of the present invention, please continue to refer to Figure 1 The control valve group 5 is provided with a supply interface 2, and the supply interface 2 is used to connect an external medicine supply system. By operating the remote control, the medicine in the external medicine supply system can be passed into the spraying terminal through the supply interface 2 to achieve spraying.

[0034] In some embodiments of the present invention, the supply interface 2 further includes an absorbent interface, an inhibitor interface and a driving gas source connector, and is connected to an external drug supply system through pipelines. The absorbent interface, the inhibitor interface and the driving gas source connector are provided to realize the transmission of the absorbent, the inhibitor and the driving gas source.

[0035] Description of the working process: The spray terminal of the present invention is used in conjunction with an external agent supply system. It is only necessary to stop the agent supply system at a distance, and connect the absorbent interface, inhibitor interface and drive air source connector of the spray terminal of the present invention to the agent supply system through pipelines, so that emergency rescue work can be carried out quickly. The spray terminal of the present invention is small in size, and the safety of the equipment itself is improved through electrical explosion-proof design and pneumatic drive. The operator can stay away from the accident scene, without entering the front line, and can remotely control the spray device 4 for disposal by operating the remote control, thereby ensuring personal safety. At the same time, it can also solve the problem that the amount of medicine carried by the treatment device in the prior art is limited, it cannot cope with large-scale accidents and the disposal effect is poor.

[0036] In some embodiments of the present invention, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The spraying device 4 includes a spraying cylinder 9, an impeller 10 arranged at the end of the spraying cylinder 9, a driving motor 11 for driving the impeller 10 to rotate, a first nozzle 14 arranged at the axis of the spraying cylinder 9, a second nozzle 13 arranged on the circumference of the front end of the spraying cylinder 9, a first spraying pipeline 8, a second spraying pipeline 15 and an air pipeline respectively connected to the control valve group 5, and a driving motor support frame 12, and the driving motor 11 is installed on the driving motor support frame 12.

[0037] In some embodiments of the present invention, please continue to refer to Figure 2 , bearings are provided on both sides of the bracket 3, the bearings are connected to the legs 6, the legs 6 are fixedly connected to the outside of the spray barrel 9, and cylinders 7 are provided on both sides of the bracket 3, and the cylinders 7 are connected to the spray barrel 9 and the bracket 3 in a hinged manner. By setting the cylinder 7 to drive the angle adjustment of the spray barrel 9, the spraying angle of the spraying device 4 is adjustable.

[0038] In some embodiments of the present invention, please continue to refer to Figure 2 The control valve group 5 includes a first control valve group connected to the first spray pipeline 8, a second control valve group connected to the second spray pipeline 15, and a third control valve group connected to the air pipeline.

[0039] In some embodiments of the present invention, please refer to Figure 2 , Figure 3 and Figure 4 The first nozzle 14 is a single-hole direct current nozzle, and the first spraying pipeline 8 extends from the outer wall of one side of the spraying cylinder 9 to the inside of the spraying cylinder 9, connecting the first control valve group with the first spraying nozzle.

[0040] In some embodiments of the present invention, please refer to Figure 2 , Figure 3 and Figure 4 The second nozzle 13 is an atomizing nozzle group, including a distribution ring and a plurality of atomizing nozzles arranged on a circumference. The second spraying pipeline 15 is arranged around the edge of the spraying side of the spraying cylinder 9, connecting the second control valve group with the distribution ring of the second spraying nozzle.

[0041] In some embodiments of the present invention, please continue to refer to Figure 4 The atomizing nozzle group of the second nozzle 13 forms a range spray, while the first nozzle 14 is a single-hole DC nozzle for central spraying, realizing two types of spraying, central and range spraying, and having a good treatment effect.

[0042] In some embodiments of the present invention, please refer to Figure 2 and Figure 3 The driving motor 11 is a pneumatic motor. The air pipeline extends from the outer wall of the other side of the spray cylinder 9 to the inside of the spray cylinder 9, connecting the third control valve group with the pneumatic motor. The pneumatic motor is connected to the driving air source. The control of the pneumatic motor by the third control valve group is realized.

[0043] In some embodiments of the present invention, please refer to Figure 2 and Figure 3 The pneumatic motor drives the impeller 10 to rotate to generate a boost airflow, thereby increasing the spraying range, increasing the protection radius and spraying radius of the equipment, and achieving a wider range of spraying.

[0044] Specifically in some embodiments, the control valve group 5 also includes a first explosion-proof electric ball valve, a second explosion-proof electric ball valve, a third explosion-proof electric ball valve and a fourth explosion-proof solenoid valve. The first explosion-proof electric ball valve is used to control the first spraying pipeline 8 of the control valve group 5, the second explosion-proof electric ball valve is used to control the second spraying pipeline 15, the third explosion-proof electric ball valve is used to control the air pipeline, control the pneumatic motor and the impeller 10, and the fourth explosion-proof solenoid valve is used to control the cylinder 7 to realize the angle adjustment of the spraying device 4.

[0045] Specific working process: After the operator connects the delivery pipeline (pipeline) to the external medicine supply system, the pneumatic motor can be turned on by operating the remote control to drive the impeller 10 to generate a boost airflow; by operating the remote control, the medicine in the external medicine supply system can be passed into the first nozzle 14 and the second nozzle 13 through the supply interface 2, and the boost airflow generated by the impeller 10 is sprayed out from the center of the cylinder, thereby improving the medicine spray distance and spraying effect. The present invention realizes the spraying of two passages at the same time, and the two spraying pipelines can pass two kinds of medicines as needed, which can provide a better emergency rescue strategy in the face of large-scale liquid hazardous chemical leakage accidents.

[0046] In some embodiments of the present invention, a control module is provided in the self-propelled robot, and a camera and an obstacle avoidance sensor are provided on the bracket 3; the control module, the camera and the obstacle avoidance sensor are in wireless communication with the remote controller.

[0047] In some embodiments of the present invention, the self-propelled robot should meet the operating requirements of an explosive gas environment. The self-propelled robot is provided with a walking chassis at the bottom, which can be selected as a crawler or wheeled chassis according to the site conditions. Figure 1 , the walking chassis uses crawler chassis 1.

[0048] Specific working process: The self-propelled robot adopts an explosion-proof automatic walking robot, which is small in size and has strong obstacle-crossing ability. The whole machine is highly safe and can replace personnel to enter dangerous places for work through remote control. The operator can control the control module, camera, and obstacle avoidance sensor of the self-propelled robot by operating the remote control. The camera transmits the scene image in real time, and the obstacle avoidance sensor controls the self-propelled robot to avoid obstacles intelligently. The remote control replaces personnel to enter dangerous places for work, which is highly safe.

[0049] The above embodiment is only one implementation of the present invention, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A spray terminal for remotely disposing of liquid hazardous chemical leakage, characterized in that: The invention comprises a remote controller and a self-propelled robot. The self-propelled robot comprises a bracket with adjustable angle, a spraying device installed on the bracket, and a control valve group for controlling the spraying device and the bracket.

2. A spray terminal for remote disposal of liquid hazardous chemical leakage according to claim 1, characterized in that: The control valve group is provided with a supply interface, and the supply interface is used to connect to an external medicine supply system.

3. A spray terminal for remote disposal of liquid hazardous chemical leakage according to claim 2, characterized in that: The supply interface includes an absorbent interface, an inhibitor interface and a driving gas source connector, and is connected to an external drug supply system through pipelines respectively.

4. A spray terminal for remote disposal of liquid hazardous chemical leakage according to claim 3, characterized in that: The spraying device includes a spraying cylinder, an impeller arranged at the end of the spraying cylinder, a driving motor for driving the impeller to rotate, a first nozzle arranged at the axis of the spraying cylinder, a second nozzle arranged on the circumference of the front end of the spraying cylinder, a first spraying pipeline, a second spraying pipeline and an air pipeline respectively connected to the control valve group, and a driving motor support frame, and the driving motor is installed on the driving motor support frame.

5. A spray terminal for remote disposal of liquid hazardous chemical leakage according to claim 4, characterized in that: Bearings are provided on both sides of the bracket, the bearings are connected to the legs, the legs are fixedly connected to the outside of the spray cylinder, and cylinders are provided on both sides of the bracket, and the cylinders are connected to the spray cylinder and the bracket in a hinged manner.

6. A spray terminal for remote disposal of liquid hazardous chemical leakage according to claim 4, characterized in that: The control valve group includes a first control valve group communicating with the first spray pipeline, a second control valve group communicating with the second spray pipeline, and a third control valve group communicating with the air pipeline.

7. A spray terminal for remote disposal of liquid hazardous chemical leakage according to claim 6, characterized in that: The first spray head is a single-hole direct current spray head, and the first spray pipeline extends from an outer wall of one side of the spray cylinder to the inside of the spray cylinder, connecting the first control valve group with the first spray head.

8. A spray terminal for remote disposal of liquid hazardous chemical leakage according to claim 7, characterized in that: The second nozzle is an atomizing nozzle group, including a distribution ring and a plurality of atomizing nozzles arranged on a circumference. The second spraying pipeline is arranged around the edge of the spraying side of the spray cylinder to connect the second control valve group with the distribution ring of the second spraying nozzle.

9. A spray terminal for remote disposal of liquid hazardous chemical leakage according to claim 8, characterized in that: The driving motor is a pneumatic motor, and the air pipeline extends from the outer wall of the other side of the spray cylinder to the inside of the spray cylinder, connecting the third control valve group with the pneumatic motor.

10. A spray terminal for remote disposal of liquid hazardous chemical leakage according to claim 1, characterized in that: The self-propelled robot is provided with a control module, and the bracket is provided with a camera and an obstacle avoidance sensor; the control module, the camera and the obstacle avoidance sensor are in wireless communication with the remote controller.

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