Mobile electrostatic protection instrument

Abstract

The invention relates to a mobile electrostatic protection instrument, which comprises a portable box body with a box cover; the emergency power supply is arranged in the portable box body; the electrostatic sensor is used for detecting electrostatic related parameters; the gas sensor is used for detecting the property and the concentration of combustible gas; the static electricity eliminator is used for releasing static electricity of the target body and is mounted in the portable box body; the grounding alarm is used for grounding qualification detection and alarm of a human body and a target body, and is mounted in the portable box body; and the controller is used for processing, storing and controlling related data. According to the mobile electrostatic protection instrument, through mutual cooperation of the electrostatic sensor, the gas sensor, the electrostatic eliminator, the controller and the grounding alarm, static electricity in an electrostatic hazard area can be effectively detected, eliminated and controlled, and the mobile electrostatic protection instrument can be conveniently applied to oil extraction and gas extraction production activities in the electrostatic hazard area; and real-time detection, monitoring, elimination and management and control of electrostatic hazards in explosion dangerous areas such as sampling of dangerous goods are realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrostatic protection, in particular to a mobile electrostatic protection instrument. BACKGROUND

[0002] In the filling and sampling application scenarios of chemical liquids, there are volatile flammable and explosive liquids, and static electricity generated by the flow of liquids or powders or the movement of human bodies, and when the three elements of flammable and explosive gas or powder, ignition source (static electricity), and oxygen in the air all exist, the risk of explosion increases dramatically. Therefore, a comprehensive electrostatic protection instrument for similar scenarios is needed to provide early warning and electrostatic elimination of the ignition source and ignition material in the electrostatic hazard operation area, thereby providing a safe management level of anti-static electricity and reducing the risk of explosion in production and operation.

[0003] However, the anti-static measures and equipment for the above situations are mostly fixed installations, and are scattered installations. For actual dangerous liquid, powder, firework, firecracker, and other dangerous industries, a mobile electrostatic protection comprehensive instrument is urgently needed to ensure that the electrostatic protection, electrostatic monitoring, and electrostatic elimination of dangerous operations such as filling, sampling, packaging, stirring, loading and unloading, and grinding reach a safe control level. SUMMARY

[0004] Therefore, it is necessary to provide a mobile electrostatic protection instrument to solve the problem that the traditional anti-static measures and equipment are mostly fixed installations and cannot meet the actual needs of anti-static operation in dangerous liquid, powder, firework, firecracker, and other dangerous industries.

[0005] The mobile electrostatic protection instrument provided by the present application comprises:

[0006] The portable box has a box cover.

[0007] The emergency power supply is installed in the portable box.

[0008] The electrostatic sensor is used for detecting electrostatic parameters and is installed in the portable box.

[0009] The gas sensor is used for detecting the concentration of flammable gas and is installed in the portable box.

[0010] The electrostatic eliminator is used for releasing the static electricity of the target body and is installed in the portable box.

[0011] The grounding alarm is used for detecting and alarming the grounding qualification of the human body and the target body and is installed in the portable box.

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

[0013] In one of the embodiments, the portable box is provided with an electrostatic bracelet and a grounding clamp.

[0014] In one of the embodiments, the electrostatic sensor, the gas sensor, the electrostatic eliminator, the grounding alarm, the controller, the human body and the target body jointly constitute a detection circuit of the mobile electrostatic protection instrument.

[0015] In one of the embodiments, the electrostatic sensor and the gas sensor are interlocked with the electrostatic eliminator through the controller. When the gas sensor detects a hazardous gas and its concentration exceeds the standard, or the electrostatic sensor detects that the target body and the surrounding electrostatic field exceed 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 of the embodiments, the controller is used for analyzing, storing and processing data, starting and interlocking 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 for receiving data of the gas type, concentration, electrostatic field strength, electrostatic voltage, charge density and grounding resistance on the detection circuit. The signal driving module is used for instructing the grounding alarm to alarm, the voice prompt and the electrostatic eliminator to work. The display module is used for displaying the data of the gas type, concentration, electrostatic field strength or electrostatic voltage, electrostatic charge density and grounding resistance on the detection circuit.

[0017] In one of the embodiments, the display module includes LED status indicator light, a nixie tube or a liquid crystal display screen. The controller is used for processing the data of the gas type, concentration, electrostatic field strength, electrostatic voltage, charge density monitored by the gas sensor and the electrostatic sensor, and the grounding resistance data of the human body, the grounding clamp at the sampling tube mouth and the target body on the detection circuit of the grounding alarm, and transmitting the detection results to the nixie tube or the liquid crystal display screen. In one of the embodiments, the signal driving module includes an output unit and an instruction unit. The output unit is used for analyzing the electrostatic related data or the gas related data on the detection circuit exceeding the first threshold value, and outputting a pre-warning signal. The instruction unit is used for instructing the grounding alarm to alarm and starting or closing the work of the electrostatic eliminator based on the pre-warning signal.

[0018] In one of the embodiments, the communication module is an RS485 communication module or a LORA wireless communication module or a 4G, 5G wireless communication module.

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

[0020] In one of the embodiments, the mobile electrostatic protection instrument is used in gas explosion-proof 1 zone, 2 zone and dust explosion-proof 21 zone, 21 zone, or safe operation zone.

[0021] The mobile electrostatic protection instrument can effectively detect, eliminate and control the static electricity in the electrostatic hazard zone through the cooperation between the electrostatic sensor, the gas sensor, the static electricity eliminator, the grounding alarm and the controller, store data, and be applied to the real-time detection, monitoring, elimination and control of the static electricity in the electrostatic hazard zone in oil and gas production activities and sampling of dangerous goods, so as to ensure the electrostatic protection, electrostatic monitoring and electrostatic elimination of dangerous operations such as filling, sampling, packaging, stirring, grinding and loading and unloading to reach the safe control level. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0023] Figure 1 The structure diagram of the mobile electrostatic protection instrument in one of the embodiments;

[0024] Figure 2 The structure diagram of the mobile electrostatic protection instrument in one of the embodiments;

[0025] Figure 3 The structure diagram of the controller in one of the embodiments.

[0026] LIST OF REFERENCE NUMERALS

[0027] 100, portable box; 110, box cover; 200, emergency power supply; 300, electrostatic sensor; 400, gas sensor; 500, static electricity eliminator; 600, grounding alarm; 700, controller; 710, receiving module; 720, signal driving module; 721, output unit; 722, instruction unit; 730, communication module; 740, display module; 741, LED state indicating lamp; 742, nixie tube or liquid crystal display screen; 800, electrostatic bracelet; 900, grounding clamp; 11, sampling pipe; 12, grounding row. DETAILED DESCRIPTION

[0028] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely explain the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort should fall into the scope of the present application.

[0029] It should be noted that when a component is referred to as being "on" or "disposed on" another component, it can be directly on the other component or there can be intervening components. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or there can be intervening components. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar terms as used in the description of the present application are for purposes of explanation only and not intended to be limiting.

[0030] In addition, the terms "first", "second", and the like, are used only to describe the objects and do not imply or suggest relative importance or a quantity of the specified technical features. Thus, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0031] In the present application, unless otherwise explicitly specified and limited, the "on", "under", "above" and "over" of a first feature to a second feature can be that the first feature is in direct contact with the second feature, or the first feature is indirectly in contact with the second feature through an intermediate medium. Moreover, the "on", "above" and "over" of a first feature to a second feature can be that the first feature is directly above or obliquely above the second feature, or only means that the first feature is horizontally higher than the second feature. The "under", "below" and "underneath" of a first feature to a second feature can be that the first feature is directly below or obliquely below the second feature, or only means that the first feature is horizontally lower than the second feature.

[0032] Unless otherwise defined, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the specification of the present application includes any and all combinations of one or more related listed items.

[0033] According to the national standard GB / T 39587-2020 "General requirements for electrostatic protection management": static electricity and electrostatic discharge will have a series of adverse effects on scientific research, production, storage, use, disposal and other activities of many industries such as electronic products, petrochemical industry, civil and military industry, and the effect of electrostatic protection work is directly related to production safety and product quality.

[0034] If a person carrying static electricity touches a conductive object (for example, a door handle, a railing, a metal container), a spark will be generated at the contact point. People are less likely to see, hear, or even feel this spark, but the spark can cause ignition. The spark generated by the human body can ignite gas, vapor, and even some more sensitive dust.

[0035] For example, in the filling and sampling application scenarios of chemical liquids, there will be volatile flammable and explosive liquids, static electricity generated by liquid flow, and exposure to air. When the three elements of flammable and explosive gas or powder, ignition source (static electricity), and oxygen in the air are present, the risk of explosion increases dramatically. Therefore, a comprehensive anti-static protection instrument for similar scenarios is needed to predict, warn, and eliminate the ignition source and ignition material in the static danger operation area, thereby providing an anti-static safety management level and reducing the risk of explosion in production and operation.

[0036] However, the anti-static measures and equipment for the above situations are mostly fixed installations, and are scattered. For actual dangerous liquid, powder, explosive, fireworks, and other dangerous industries, a mobile anti-static protection comprehensive instrument is needed to ensure that the static protection, static monitoring, and static elimination of dangerous operations such as filling, sampling, packaging, stirring, and grinding reach a safe control level.

[0037] The following will be described in conjunction with Figures 1-3 The mobile static protection instrument of the present application.

[0038] As shown in Figure 1 and Figure 2 , in one embodiment, a mobile static protection instrument includes a portable box 100, an emergency power supply 200, a static sensor 300, a gas sensor 400, a static eliminator 500, a grounding alarm 600, and a controller 700.

[0039] The portable box 100 has a box cover 110. The portable box 100 is used for convenient carrying and storage of various accessories such as grounding clamps 900 and cables, and has an anti-static hub, is easy to carry, is made of stainless steel 304 or other reliable materials, has an IP66 protection level, and is waterproof and corrosion-resistant.

[0040] The emergency power supply 200 is installed in the portable box 100, and is used for power supply guarantee and recyclable charging of the mobile electrostatic protection instrument, can provide 12V or 24V DC high-life intrinsically safe power supply, and has a residual capacity display, so as to facilitate identification of the power supply life, prompt timely charging and replacement.

[0041] The electrostatic sensor 300 is used for detecting electrostatic parameters such as electrostatic voltage, electrostatic field strength and electrostatic charge density, and is installed in the portable box 100, and can also be taken out separately and installed at a suitable position.

[0042] It should be noted that the electrostatic sensor 300 can detect and monitor the electrostatic field value, electrostatic voltage value or electrostatic charge density of the target body and the surrounding area in real time, and determine the danger degree of the electrostatic operation area according to the high or low value of the displayed electrostatic field value, electrostatic voltage value or electrostatic charge density value, so as to enable the operator to take measures.

[0043] The gas sensor 400 is used for detecting the concentration of flammable gas, and is installed in the portable box 100, and can also be taken out separately and installed at a suitable position.

[0044] It should be noted that the gas sensor 400 can detect and monitor the properties and concentration value of the hazardous gas around the target body in a timely manner, and determine the flammable and explosive danger degree of the electrostatic hazard area according to the displayed hazardous gas properties, types and concentration, so as to prompt and warn the operator to take measures.

[0045] The electrostatic eliminator 500 is used for releasing the static electricity of the target body, and is installed in the portable box 100, and can also be taken out separately and installed at a suitable position.

[0046] It should be noted that the electrostatic eliminator 500 is a high-voltage ion wind or a humidifier, the high-voltage ion wind actively neutralizes the static electricity accumulated on the local space of the target body or the surrounding objects, reduces the energy of the accumulated static electricity, or the humidifier can increase the air humidity of the monitoring target body and the surrounding area, through humidification, the humidity of the surrounding area is increased to 65%, an effective electrostatic elimination area is formed, the static electricity is rapidly eliminated, and thus the flash explosion accidents caused by static electricity accumulation and static electricity discharge are prevented.

[0047] The grounding alarm 600 is used for detecting and alarming the grounding qualification of the human body and the target body, and is installed in the portable box 100, the grounding alarm 600 can perform real-time inspection on the static grounding of the monitoring target and the operator, ensure that the grounding loop resistance of the monitoring target and the operator is lower than the highest value set by the national standard, so as to ensure that the static electricity generated by the monitoring target and the human body has a reliable and effective static electricity release channel, and ensure that the static electricity is not accumulated, thereby preventing the flash explosion accidents caused by static electricity accumulation and static electricity discharge.

[0048] The controller 700 is used for data processing, storage and control of related gases, static electricity, grounding resistance, etc., and is a central data processing center. The controller 700 is installed in the portable box 100, and the controller 700 is electrically connected with the gas sensor 400, the static electricity sensor 300, and the grounding alarm 600 of the mobile static electricity protection instrument. Through the mutual cooperation among the static electricity sensor 300, the gas sensor 400, the static electricity eliminator 500, the grounding alarm 600, and the controller 700, the static electricity in the static electricity hazard area can be effectively detected, eliminated, and controlled, which facilitates the real-time detection, monitoring, elimination, and control of static electricity hazards in the static electricity hazard area in oil and gas production activities and sampling of dangerous goods, and ensures that the static electricity protection, static electricity monitoring, and static electricity elimination in dangerous operations such as filling, sampling, packaging, stirring, grinding, loading and unloading reach the safety control level.

[0049] In the embodiment, the static electricity bracelet 800 is installed on the portable box 100, and the staff can always wear the static electricity bracelet 800 when performing dangerous operations such as filling, sampling, and packaging, so as to effectively ensure the static electricity grounding safety of the staff. The grounding alarm 600 is provided with a plurality of professional static electricity grounding clamps 900 and a special anti-static cable, which facilitates on-site operation and static electricity grounding. Each stainless steel static electricity grounding clamp 900 is electrically connected with the grounding alarm 600, and the grounding alarm 600 is electrically connected with the grounding row 12. The static electricity grounding clamp 900 and the special anti-static cable are stored in the box 100 in normal times, and the static electricity clamp 900 is taken out from the box 100 and clamped to the detection object when used.

[0050] It should be noted that the portable box 100, the static electricity sensor 300, the gas sensor 400, the static electricity eliminator 500, the grounding alarm 600, the controller 700, the static electricity bracelet 800, the grounding clamp 900 at the sampling pipe opening 11, the grounding row 12, the human body, and the target body together constitute a detection loop on the mobile static electricity protection instrument.

[0051] In the embodiment, the static electricity sensor 300 and the gas sensor 400 are interlocked with the static electricity eliminator 500 through the controller 700. When the gas sensor 400 detects that the harmful gas and its concentration exceed the standard, or the static electricity sensor 300 detects that the target body and the surrounding static electricity field exceed the standard in static electricity field strength or static electricity voltage or static electricity charge density, the controller 700 triggers the static electricity eliminator 500 to work until the harmful gas air concentration and the static electricity 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 value of the electrostatic related data is 10Ω or 100Ω of the electrostatic grounding resistance value, or can be adjusted according to the actual application scene, and when the resistance value is not in the range of 0-10Ω or 0-100Ω, an alarm is given, and the first threshold value of the gas related data is the upper and lower limit value of the explosion concentration of the gas, and when the gas concentration falls within the upper and lower limits of the explosion of the gas, an alarm is given.

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

[0060] The specific application scene is as follows:

[0061] In the transportation or storage operation of hazardous chemicals, such as tank truck, chemical plant vehicle sampling, filling, etc., the stainless steel electrostatic grounding clamp 900 is clamped on the exposed metal part of the vehicle (such as the sampling pipe 11, the vehicle frame), the operator wears the electrostatic bracelet 800, and the other end of the stainless steel electrostatic grounding clamp 900 and the electrostatic bracelet 800 is electrically connected with the grounding alarm 600 in the portable box 100, to ensure that the vehicle frame, the sampling pipe 11, the electrostatic bracelet 800, the stainless steel electrostatic grounding clamp 900, the portable box 100, the grounding alarm 600 and the grounding row 12 are electrically connected, the electrostatic sensor 300 measures the electrostatic voltage or 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 gas in the operation point area, and the grounding alarm 600 detects the grounding resistance data of the human body and the vehicle body on the detection loop, and the grounding alarm alarms when the electrostatic and grounding resistance related data on the detection loop exceeds the first threshold value.

[0062] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the present disclosure.

[0063] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the protection scope of the present application should be subject to 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.

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