Mobile electrostatic protection device

Abstract

The utility model relates to a mobile electrostatic protection appearance, include: portable box body has the box cover, emergency power supply, install in portable box body, static electricity sensor is used for detecting static electricity related parameter, gas sensor is used for detecting the nature, concentration of combustible gas, static electricity eliminator is used for releasing the static electricity of target body, and install in portable box body, ground alarm is used for the ground qualified detection and alarm of human body and target body, and install in portable box body, controller is used for related data processing, storage and control. The mobile electrostatic protection appearance passes through the mutual cooperation between static electricity sensor, gas sensor, static electricity eliminator, controller and ground alarm, can carry out effective discovery, elimination and control to the static electricity of electrostatic hazard area, and the real -time discovery, monitoring, elimination and control of electrostatic danger in the explosion danger area such as oil production, gas production activity and dangerous goods sampling of electrostatic hazard area are convenient for applied.

Description

Technical Field

[0001] This utility model relates to the field of electrostatic protection technology, and in particular to a mobile electrostatic protection device. Background Technology

[0002] In chemical liquid filling and sampling applications, there is an inevitable evaporation of flammable and explosive liquids. Furthermore, the flow of liquids or powders, or human movement, generates static electricity, which is then exposed to the air. When flammable and explosive gases or powders (the three explosive elements), an ignition source (static electricity), and oxygen in the air are all present, the risk of explosion increases dramatically. Therefore, a comprehensive electrostatic protection instrument is needed for such scenarios to predict and warn of ignition sources and ignition materials in electrostatic hazardous work areas, and to eliminate static electricity, thereby improving electrostatic safety management and reducing the risk of explosions in production and operations.

[0003] However, the anti-static measures and equipment for the above situations are mostly fixed and decentralized installations. For actual hazardous operations such as handling dangerous liquids, powders, pyrotechnics, and fireworks, there is an urgent need for a mobile electrostatic protection integrated instrument to ensure that electrostatic protection, electrostatic monitoring, and electrostatic elimination for hazardous operations such as filling, sampling, packaging, mixing, loading and unloading, and grinding reach a safe control level. Utility Model Content

[0004] Therefore, it is necessary to provide a mobile electrostatic protection device to address the problem that traditional, mostly fixed-installation antistatic measures and equipment are insufficient to meet the actual antistatic operation needs of hazardous industries such as hazardous liquids, powders, pyrotechnics, and fireworks.

[0005] This utility model provides a mobile electrostatic discharge protection device, comprising:

[0006] Portable case with a lid;

[0007] An emergency power supply is installed inside the portable housing;

[0008] An electrostatic sensor, used to detect electrostatic parameters, is installed inside the portable housing;

[0009] A gas sensor, used to detect the concentration of combustible gas, is installed inside the portable case;

[0010] An electrostatic eliminator, used to release static electricity from the target object, is installed inside the portable case.

[0011] A grounding alarm is used for detecting and alarming the grounding qualification of human bodies and target objects, and is installed inside the portable case;

[0012] The controller, used for relevant data processing, storage and control, is installed in the portable housing and is electrically connected to the gas sensor, electrostatic sensor and grounding alarm.

[0013] In one embodiment, the portable case is equipped with an electrostatic wrist strap and a grounding clamp.

[0014] In one embodiment, the electrostatic sensor, gas sensor, static eliminator, grounding alarm, controller, human body, and target body together form the detection circuit of the mobile electrostatic protection device.

[0015] In one embodiment, both the electrostatic sensor and the gas sensor are interlocked with the electrostatic eliminator via a controller. When the gas sensor detects that the concentration of the hazardous gas exceeds the standard, or when the electrostatic sensor detects that the electrostatic field strength or voltage of the target body and its surrounding electrostatic field exceeds the standard, the controller triggers the electrostatic eliminator to work until the concentration of the hazardous gas and the electrostatic voltage are within a reasonable and safe range.

[0016] In one embodiment, the controller is used to analyze data, store data, process data, start and interlock the operation of the electrostatic eliminator and the grounding alarm. The controller includes a receiving module, a signal driving module, a communication module and a display module. The receiving module is used to receive data on gas type, concentration, electrostatic field strength, electrostatic voltage, charge density and grounding resistance in the detection loop. The signal driving module is used to instruct the grounding alarm to sound an alarm, provide voice prompts and activate the electrostatic eliminator. The display module is used to display the detected gas type, concentration, electrostatic field strength or electrostatic voltage, electrostatic charge density and grounding resistance data in the loop.

[0017] In one embodiment, the display module includes LED status indicators and a digital tube or LCD screen. The controller processes data from the gas sensor and electrostatic sensor, including gas type, concentration, electrostatic field strength, electrostatic voltage, charge density, and grounding resistance data of the human body, grounding clamp at the sampling tube opening, and target body in the grounding alarm detection circuit, and transmits the detection results to the digital tube or LCD screen. In another embodiment, the signal driving module includes an output unit and an instruction unit. The output unit analyzes the electrostatic or gas-related data in the detection circuit and outputs a warning signal when it exceeds a first threshold. The instruction unit, based on the warning signal, instructs the grounding alarm to sound an alarm and to activate or deactivate the electrostatic eliminator.

[0018] In one embodiment, the communication module is an RS485 communication module, a LoRa wireless communication module, or a 4G or 5G wireless communication module.

[0019] In one embodiment, the emergency power supply, electrostatic sensor, gas sensor, controller, static eliminator, and grounding alarm are all explosion-proof.

[0020] In one embodiment, the mobile electrostatic discharge device is used in gas explosion-proof zones 1 and 2 and dust explosion-proof zones 21, 21, or safe working areas.

[0021] The aforementioned mobile electrostatic protection device, through the coordinated operation of electrostatic sensors, gas sensors, electrostatic eliminators, grounding alarms, and controllers, can effectively detect, eliminate, and control static electricity in electrostatic hazard areas, as well as store data. It is convenient to apply to real-time detection, monitoring, elimination, and control of static electricity hazards in oil and gas production activities in electrostatic hazard areas, as well as in explosive hazard areas such as the sampling of hazardous materials. This ensures that electrostatic protection, electrostatic monitoring, and electrostatic elimination in hazardous operations such as filling, sampling, packaging, mixing, grinding, and loading and unloading reach a safe control level. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a mobile electrostatic discharge protection device in one embodiment;

[0024] Figure 2 This is a schematic diagram of a portion of the structure of a mobile electrostatic discharge protection device in one embodiment;

[0025] Figure 3 This is a schematic diagram of the controller structure in one embodiment.

[0026] Figure label:

[0027] 100. Portable enclosure; 110. Lid; 200. Emergency power supply; 300. Static electricity sensor; 400. Gas sensor; 500. Static electricity eliminator; 600. Grounding alarm; 700. Controller; 710. Receiver module; 720. Signal drive module; 721. Output unit; 722. Command unit; 730. Communication module; 740. Display module; 741. LED status indicator; 742. Digital tube or LCD display; 800. Static electricity wristband; 900. Grounding clamp; 11. Sampling tube port; 12. Grounding busbar. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0029] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0033] According to the national standard GB / T 39587-2020 "General Requirements for Electrostatic Protection Management", static electricity and electrostatic discharge can have a series of adverse effects on scientific research, production, storage, transportation, use and disposal activities in many industries such as electronic products, petrochemicals, civil explosives and military industries. The effectiveness of electrostatic protection work is directly related to production safety and product quality.

[0034] If a person carrying static electricity comes into contact with a conductive object (such as a doorknob, railing, or metal container), a spark will be generated at the point of contact. People are unlikely to see, hear, or even feel this spark, but it can ignite. Sparks generated by the human body can ignite gases, vapors, and even some more sensitive dust particles.

[0035] For example, in chemical liquid filling and sampling applications, there is inevitably the volatilization of flammable and explosive liquids, static electricity generated by liquid flow, and exposure to air. When flammable and explosive gases or powders containing the three explosive elements, an ignition source (static electricity), and oxygen in the air are all present, the risk of explosion increases dramatically. Therefore, a comprehensive anti-static protection instrument is needed for similar scenarios to predict and warn of ignition sources and ignition materials in static-hazardous work areas, and to eliminate static electricity, thereby improving the level of anti-static safety management and reducing the risk of explosions in production and operations.

[0036] However, the anti-static measures and equipment for the above situations are mostly fixed and decentralized installations. For actual hazardous operations involving liquids, powders, pyrotechnics, fireworks and firecrackers, there is an urgent need for a mobile anti-static protection integrated instrument to ensure that the electrostatic protection, electrostatic monitoring, and electrostatic elimination of hazardous operations such as filling, sampling, packaging, stirring, and grinding reach a safe control level.

[0037] The following is combined Figures 1-3 This invention describes a mobile electrostatic protection device.

[0038] like Figure 1 and Figure 2 As shown, in one embodiment, a mobile electrostatic discharge (ESD) protection device includes a portable housing 100, an emergency power supply 200, an ESD sensor 300, a gas sensor 400, an ESD eliminator 500, a grounding alarm 600, and a controller 700.

[0039] The portable case 100 has a lid 110. The portable case 100 is designed for easy carrying and storage of various accessories such as grounding clamps 900 and cables. It is equipped with anti-static wheels, is easy to carry, and is made of stainless steel 304 or other reliable materials. It has an IP66 protection rating, is waterproof and corrosion resistant.

[0040] The emergency power supply 200 is installed inside the portable housing 100. The emergency power supply 200 is used for the power supply protection and rechargeable function of this mobile electrostatic protection device. It can provide 12V or 24VDC high-life intrinsically safe power and has a built-in remaining capacity display to facilitate the identification of power supply life and prompt timely charging and replacement.

[0041] The electrostatic sensor 300 is used to detect electrostatic parameters, such as electrostatic voltage, electrostatic field strength, and electrostatic charge density. The electrostatic sensor 300 is installed inside the portable housing 100, but can also be removed separately and installed in a suitable location.

[0042] It should be added that the electrostatic sensor 300 can detect and monitor the electrostatic electric field value, electrostatic voltage value, or electrostatic charge density of the target and its surroundings in real time. Based on the displayed electrostatic electric field value, electrostatic voltage value, or electrostatic charge density value, the degree of danger of the electrostatic work area can be judged so that the operator can take measures.

[0043] The gas sensor 400 is used to detect the concentration of combustible gas. The gas sensor 400 is installed inside the portable housing 100, or it can be removed separately and installed in a suitable location.

[0044] It should be added that the gas sensor 400 can detect and monitor the properties and concentration of hazardous gases around the target in a timely manner. Based on the displayed properties, types and concentrations of hazardous gases, it can determine the degree of flammability and explosiveness of the electrostatic hazard zone and prompt and warn operators to take countermeasures.

[0045] The static eliminator 500 is used to release static electricity from the target object. The static eliminator 500 is installed inside the portable case 100, or it can be removed separately and installed in a suitable location.

[0046] It should be further explained that the static eliminator 500 is a high-voltage ion fan or a humidifier. The high-voltage ion fan actively neutralizes the static electricity accumulated in the local space of the target or on surrounding objects, reducing the energy of static electricity accumulation. Alternatively, the humidifier can increase the air humidity of the monitored target and its surroundings. By humidifying, the surrounding humidity is increased, such as to 65%, forming an effective local static electricity elimination area, so that static electricity is quickly eliminated, thereby preventing flash explosion accidents caused by static electricity accumulation and electrostatic discharge.

[0047] The grounding alarm 600 is used for grounding qualification detection and alarm of human body and target body. The grounding alarm 600 is installed in portable housing 100. The grounding alarm 600 can perform real-time inspection of the static grounding of the monitored target and operator to ensure that the grounding loop resistance of the monitored target and operator is lower than the maximum value set by the national standard. This ensures that the static electricity generated by the monitored target and human body has a reliable and effective static electricity discharge channel, and ensures that static electricity will not accumulate, thereby preventing flash explosion accidents caused by static electricity accumulation and electrostatic discharge.

[0048] The controller 700 is used for data processing, storage, and control of related gases, static electricity, and grounding resistance, serving as a central data processing center. The controller 700 is installed inside the portable housing 100 and is electrically connected to the gas sensor 400, static electricity sensor 300, and grounding alarm 600 in this mobile electrostatic discharge (ESD) protection device. Through the coordinated operation of the static electricity sensor 300, gas sensor 400, static eliminator 500, grounding alarm 600, and controller 700, it can effectively detect, eliminate, and control static electricity in ESD hazard areas. This makes it convenient for real-time detection, monitoring, elimination, and control of ESD hazards in oil and gas extraction production activities and in explosive hazardous areas such as hazardous material sampling. It ensures that ESD protection, monitoring, and elimination in hazardous operations such as filling, sampling, packaging, mixing, grinding, and loading / unloading reach a safe management level.

[0049] In this embodiment, an electrostatic wrist strap 800 is installed on the portable housing 100. Workers wear the wrist strap 800 at all times during hazardous operations such as filling, sampling, and packaging, effectively ensuring their electrostatic grounding safety. The grounding alarm 600 includes multiple professional electrostatic grounding clamps 900 with dedicated anti-static cables for convenient on-site operation and electrostatic grounding. Each stainless steel electrostatic grounding clamp 900 is electrically connected to the grounding alarm 600, and the grounding alarm 600 is equipotentially connected to the grounding busbar 12. The electrostatic grounding clamps 900 and dedicated anti-static cables are normally stored inside the housing 100. When needed, the electrostatic clamps 900 are removed from the housing 100 and clamped onto the object being tested.

[0050] It should be noted that the portable housing 100, electrostatic sensor 300, gas sensor 400, electrostatic eliminator 500, grounding alarm 600, controller 700, electrostatic wrist strap 800, grounding clamp 900 at sampling tube port 11, grounding busbar 12, human body and target body together constitute the detection circuit of the mobile electrostatic protection device.

[0051] In this embodiment, both the electrostatic sensor 300 and the gas sensor 400 are interlocked with the static eliminator 500 through the controller 700. When the gas sensor 400 detects that the concentration of the hazardous gas exceeds the standard, or when the electrostatic sensor 300 detects that the electrostatic field strength, electrostatic voltage, or electrostatic charge density of the target body and its surroundings exceeds the standard, the controller 700 triggers the static eliminator 500 to work until the concentration of the hazardous gas and the electrostatic voltage are within a reasonable and safe range.

[0052] It should be noted that the hazardous gases detected by the gas sensor 400 mainly include flammable and explosive light oil volatiles, hydrocarbon gases, hydrogen sulfide, hydrogen, etc. When the gas sensor 400 detects that the concentration of flammable and explosive gases has reached its lower explosive limit (e.g., 20%), or, for example, when the gas sensor 400 detects that the concentration of highly toxic hydrogen sulfide has reached 10 ppm, the static eliminator 500 will be activated immediately through the controller 700.

[0053] In this embodiment, see Figure 3 The controller 700 is used to analyze, store, and process data, start and interlock the operation of the electrostatic eliminator 500, and the grounding alarm 600. The controller 700 includes a receiving module 710, a signal driving module 720, a communication module 730, and a display module 740. The receiving module 710 is used to receive data on gas type, concentration, electrostatic field strength, electrostatic voltage, charge density, and grounding resistance in the detection circuit. The signal driving module 720 is used to instruct the grounding alarm 600 to alarm, provide voice prompts, and start and stop the electrostatic eliminator 500. The display module 740 is used to display the detected gas type, concentration, electrostatic field strength or electrostatic voltage, electrostatic charge density, and grounding resistance data in the circuit.

[0054] The controller 700 can analyze, store, and process data, and activate and interlock the static eliminator 500 and the grounding alarm 600.

[0055] In this embodiment, the display module 740 includes an LED status indicator 741 and a digital tube or liquid crystal display screen 742. The controller 700 is used to process the gas type, concentration, electrostatic field strength, electrostatic voltage, charge density, and grounding resistance data of the human body and target body on the detection circuit of the grounding alarm 600 monitored by the gas sensor 400 and the electrostatic sensor 300, and transmit the detection results to the digital tube or liquid crystal display screen 742.

[0056] It should be noted that the communication module 730 is an RS485 communication module, a LoRa wireless communication module, or a 4G or 5G wireless communication module.

[0057] In this embodiment, the signal driving module 720 includes an output unit 721 and an instruction unit 722. The output unit 721 is used to output a warning signal in response to the electrostatic related data or gas related data on the detection circuit exceeding a first threshold. The instruction unit 722 is used to instruct the grounding alarm 600 to alarm and to start or stop the operation of the static eliminator 500 based on the warning signal.

[0058] It should be noted that the first threshold for electrostatic data is the electrostatic grounding resistance value of 10Ω or 100Ω, or it can be adjusted according to the actual application scenario. An alarm will be triggered when the resistance value is not within the range of 0~10Ω or 0-100Ω. The first threshold for gas-related data is the upper and lower limits of the gas explosion concentration. An alarm will be triggered when the gas concentration falls within the upper and lower limits of the gas explosion concentration.

[0059] In this embodiment, the emergency power supply 200, electrostatic sensor 300, gas sensor 400, static eliminator 500, grounding alarm 600, and controller 700 are all explosion-proof. The mobile electrostatic protection device is used in gas explosion-proof zones 1 and 2 and dust explosion-proof zones 21 and 22, or other safe working areas.

[0060] The specific application scenarios are as follows:

[0061] In hazardous chemical transportation or storage operations, such as sampling and filling of tank trucks and chemical plant vehicles, stainless steel electrostatic grounding clamps 900 are clamped onto exposed metal parts of the vehicle (such as sampling tube port 11, vehicle frame). The operator wears an electrostatic wrist strap 800. The other end of the stainless steel electrostatic grounding clamps 900 and the electrostatic wrist strap 800 are electrically connected to the grounding alarm 600 inside the portable housing 100, ensuring that the vehicle frame, sampling tube 11, electrostatic wrist strap 800, stainless steel electrostatic grounding clamps 900, portable housing 100, grounding alarm 600, and grounding busbar 12 are equipotentially connected. The electrostatic sensor 300 measures the electrostatic voltage, electrostatic field strength, or charge density around the sampling port or target body, such as the vehicle body. The gas sensor 400 monitors the concentration of hazardous gases in the work area. The grounding alarm 600 detects the grounding resistance data of the human body and vehicle body in the detection circuit. When the electrostatic and grounding resistance data in the detection circuit exceed the first threshold, the grounding alarm sounds.

[0062] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A mobile electrostatic discharge protection device, characterized in that, include: Portable case with a lid; An emergency power supply is installed inside the portable housing; An electrostatic sensor, used to detect electrostatic parameters, is installed inside the portable housing; A gas sensor, used to detect the properties and concentration of combustible gases, is installed inside the portable housing; An electrostatic eliminator, used to release static electricity from the target object, is installed inside the portable case. A grounding alarm is used for detecting and alarming the grounding resistance of human bodies and targets, and is installed inside the portable case. The controller, used for relevant data processing, storage and control, is installed in the portable housing and is electrically connected to the gas sensor, electrostatic sensor and grounding alarm.

2. The mobile electrostatic discharge protector according to claim 1, characterized in that, The portable case is equipped with an electrostatic wrist strap and a grounding clamp.

3. The mobile electrostatic discharge protector according to claim 2, characterized in that, The electrostatic sensor, gas sensor, static eliminator, grounding alarm, controller, human body, and target body together form the detection circuit of the mobile electrostatic protection device.

4. The mobile electrostatic discharge protector according to claim 3, characterized in that, Both the electrostatic sensor and the gas sensor are interlocked with the electrostatic eliminator through the controller. When the gas sensor detects that the concentration of the hazardous gas exceeds the standard, or when the electrostatic sensor detects that the electrostatic field strength or electrostatic voltage of the target body and its surroundings exceeds the standard, the controller triggers the electrostatic eliminator to work until the concentration of the hazardous gas and the electrostatic voltage are within a reasonable and safe range.

5. The mobile electrostatic discharge protector according to claim 4, characterized in that, The controller is used to analyze, store, and process data, activate and interlock the operation of the electrostatic eliminator, and trigger the grounding alarm. The controller includes a receiving module, a signal driving module, a communication module, and a display module. The receiving module is used to receive data on gas type, concentration, electrostatic field strength, electrostatic voltage, charge density, and grounding resistance in the detection loop. The signal driving module is used to instruct the grounding alarm to sound an alarm, provide voice prompts, and activate the electrostatic eliminator. The display module is used to display the detected gas type, concentration, electrostatic field strength or electrostatic voltage, electrostatic charge density, and grounding resistance data in the loop.

6. The mobile electrostatic discharge protector according to claim 5, characterized in that, The display module includes LED status indicators and a digital tube or LCD screen. The controller is used to process the gas type, concentration, electrostatic field strength, electrostatic voltage, charge density, and grounding resistance data of the human body, grounding clamp at the sampling tube opening, and target body in the grounding alarm detection circuit monitored by the gas sensor and electrostatic sensor, and transmit the detection results to the digital tube or LCD screen.

7. The mobile electrostatic discharge protector according to claim 6, characterized in that, The signal driving module includes an output unit and an instruction unit. The output unit is used to output a warning signal in response to the electrostatic or gas-related data on the detection circuit exceeding a first threshold. The instruction unit is used to instruct the grounding alarm to sound an alarm and to start or stop the operation of the electrostatic eliminator based on the warning signal.

8. The mobile electrostatic discharge protector according to claim 7, characterized in that, The communication module is an RS485 wired communication module, or a LoRa or 4G / 5G wireless communication module.

9. The mobile electrostatic discharge protector according to any one of claims 1 to 8, characterized in that, The emergency power supply, electrostatic sensor, gas sensor, static eliminator, controller, and grounding alarm are all explosion-proof.

10. The mobile electrostatic discharge protector according to claim 9, characterized in that, The mobile electrostatic discharge protection device is used in gas explosion-proof zones 1 and 2, and dust explosion-proof zones 21 and 22, or in safe working areas.

Images