Personnel electrostatic protection qualification confirmation instrument

Abstract

The utility model relates to a personnel electrostatic protection qualification confirmation instrument, and belongs to the field of electrostatic protection. The confirmation instrument comprises a portable box body which is provided with a box cover; the emergency power supply is arranged in the portable box body; the electrostatic protection measure qualification confirmation instrument body is used for detecting whether electrostatic grounding resistance of facilities such as electrostatic safety shoes and personnel wearing anti-electrostatic clothes and anti-electrostatic gloves is qualified or not, and is mounted in the portable box body; the human body static electricity eliminator is used for releasing static electricity of people, detecting static electricity voltage and touching a detection button by a hand, and is positioned in the portable box body; and the metal pedal plate is used for treading the anti-static shoes worn by people. The personnel electrostatic protection qualification confirmation instrument can carry out qualification confirmation on electrical continuity of wearing articles of all parts of a human body, confirms that personnel are always grounded during walking, and is conveniently applied to field operation in a power-free working area so as to ensure management, control and monitoring of personnel electrostatic protection measures in oil extraction, gas extraction and explosion danger areas in an outdoor temporary working area.

Description

Technical Field

[0001] The utility model relates to the field of electrostatic protection, in particular to a personnel electrostatic protection qualification confirmation instrument. Background Art

[0002] 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, disposal and other 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.

[0003] If a person carrying static electricity touches a conductive object (e.g., a doorknob, a railing, a 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 still ignite. Sparks generated by the human body can ignite gases, vapors, and even some more sensitive dusts.

[0004] Therefore, an entry control device is needed for anti-static work areas for electronic products and electrostatic hazardous places for flammable and explosive dangerous chemicals / weapons and ammunition. Before entering the electrostatic hazardous places, the electrostatic protection measures of personnel entering the anti-static work area should be confirmed, and they can only enter after confirmation.

[0005] However, most of the above measures and equipment are fixed installations. For field operations, work areas without power supply are in urgent need of a portable personnel electrostatic protection confirmation instrument to ensure the control and monitoring of electrostatic protection measures for personnel in outdoor temporary work areas such as oil and gas production and explosion-hazardous areas. Utility Model Content

[0006] Based on this, it is necessary to provide a personnel electrostatic protection qualification confirmation instrument to address the problem of ensuring the control and monitoring of electrostatic protection measures for personnel in outdoor temporary work areas such as oil production, gas production, and explosion-hazardous areas where it is difficult to ensure working in the field and in work areas without power supply.

[0007] The utility model provides a personnel electrostatic protection qualification confirmation instrument, comprising:

[0008] A portable box having a cover;

[0009] An emergency power supply, used for power supply protection and cyclic charging, and installed in the portable box;

[0010] The electrostatic protection measures qualification verification instrument body is used to detect whether the electrostatic grounding resistance of facilities such as electrostatic safety shoes and anti-static clothing and anti-static gloves worn by personnel is qualified, and is installed in the portable box;

[0011] Human body static eliminator, used for discharging static electricity from people and detecting static voltage, as well as for detecting buttons touched by human hands, and is located in a portable box;

[0012] The metal foot pedal is used for people to step on with anti-static shoes and can be folded and installed outside the portable box.

[0013] In one embodiment, the emergency power supply is explosion-proof, and is used in gas explosion-proof zones 1 and 2 and dust explosion-proof zones 21 and 22 and safe areas.

[0014] In one embodiment, the electrostatic protection measures qualification confirmer body can output a NAMUR intrinsically safe interlock signal, and the electrostatic protection measures qualification confirmer body and the associated interlocking device realize NAMUR intrinsically safe communication and interlocking.

[0015] In one embodiment, the human body static eliminator is provided with a touch ball and an electrostatic voltmeter. The touch ball is made of a subconductor material that meets national standards. The resistance of the touch ball is calibrated by subtraction on the controller, which is unlikely to affect the qualified resistance test of the electrostatic grounding resistance of personnel anti-static measures. The electrostatic voltmeter is used to detect the electrostatic voltage of the human body.

[0016] In one embodiment, the metal pedal is connected to the grounding pile of the earth at the same potential, and the metal pedal, the grounding pile, the human body and the electrostatic protection measures worn by the human body together constitute a detection circuit on the electrostatic protection measures qualification confirmation instrument body.

[0017] In one embodiment, the electrostatic protection measure qualification confirmation instrument has a buzzer on its body.

[0018] In one embodiment, the electrostatic protection measures qualification confirmation instrument body also has a main control board and a display panel, the main control board has a controller, the display panel has an LED status indicator and a digital tube or LCD screen, the controller is used to process the electrostatic resistance data on the detection circuit and transmit the detection results to the digital tube or LCD screen.

[0019] In one embodiment, the controller includes a receiving module, a signal driving module, a communication module and a display module. The receiving module is used to receive electrostatic resistance data on the detection circuit, the signal driving module is used to instruct the buzzer to alarm, and the display module is used to output electrostatic protection qualification information in response to the electrostatic resistance data on the detection circuit being within a first threshold range.

[0020] In one embodiment, 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 resistance data on the detection circuit exceeding a first threshold value. The instruction unit is used to instruct the buzzer to alarm based on the warning signal.

[0021] In one embodiment, the communication module is an RS485 communication module.

[0022] The above-mentioned personnel electrostatic protection qualification confirmation instrument, through the integrated design of portable static elimination and static qualification confirmation, ensures that the anti-static or conductive function of exposed clothing and the electrical continuity of clothing on various parts of the human body are qualified before workers enter static hazardous places, and confirms that personnel are always grounded while walking. At the same time, it is convenient for field operations in work areas without power supply to ensure the control and monitoring of electrostatic protection measures for personnel in outdoor temporary work areas such as oil and gas production and explosion hazardous areas.

[0023] By outputting early warning signals, it is possible to confirm whether the electrostatic protection measures of personnel entering electrostatic hazardous areas are qualified, thereby avoiding fires caused by the failure of personnel's anti-static measures and ensuring that personnel's electrostatic protection work is safe and effective. At the same time, the display of the electrostatic voltmeter can more intuitively indicate whether the static elimination results are qualified, thereby improving safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A schematic diagram of the structure of a personnel electrostatic protection qualification confirmation instrument in one embodiment Figure 1 ;

[0026] Figure 2 A schematic diagram of the structure of a personnel electrostatic protection qualification confirmation instrument in one embodiment Figure 2 ;

[0027] Figure 3 A schematic diagram of the principle of an electrostatic protection measure qualification verification instrument in one embodiment;

[0028] Figure 4 Schematic diagram of the controller principle in one embodiment.

[0029] Reference numerals:

[0030] 100. Portable box; 110. Box cover; 200. Emergency power supply; 300. Electrostatic protection measures qualification confirmation instrument body; 310. Main control board; 320. Display panel; 321. Digital tube or LCD screen; 322. LED status indicator; 330. Controller; 331. Receiving module; 332. Signal driving module; 333. Communication module; 334. Display module; 335. Output unit; 336. Command unit; 400. Human body static eliminator; 410. Touch ball; 420. Electrostatic voltmeter; 500. Metal foot pedal; 600. Grounding pile; 700. Buzzer. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0032] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this utility model are for illustrative purposes only and do not represent the only implementation method.

[0033] 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 the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0034] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] Unless otherwise defined, all technical and scientific terms used in the specification of this utility model have the same meanings as those commonly understood by those skilled in the art to which this utility model belongs. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. The term "and / or" used in the specification of this utility model includes any and all combinations of one or more of the relevant listed items.

[0036] To protect personnel from static electricity in electrostatically hazardous areas such as petrochemicals, electronics, and military and civilian explosives, human static eliminators are often installed outside pump room doors, at the entrances and sampling ports of oil tank ladders, at the entrances and ladders of operating platforms within loading and unloading areas, at sampling ports in equipment areas, and at dock entrances. However, these devices can only ensure that static electricity is immediately discharged when touched. If a person's clothing does not meet the required static protection requirements, such as socks with excessively high resistance, electrical continuity will be lost between the person's clothing and the anti-static shoes or conductive shoes that should comply with the national standard GB 21148-2020. Even if the floor is conductive, static electricity generated by friction cannot be discharged immediately. Once static electricity accumulates, it can be discharged by static electricity, posing a serious threat to the safety of tankers, docks, ports, loading and unloading areas, chemical equipment, electronic products, and explosives.

[0037] For example, in production, external contractors often wear ordinary shoes, not professional anti-static shoes. In addition, some anti-static shoes distributed by the factory have soles that fall off or are worn out, which leads to problems such as whether static electricity can be safely released.

[0038] In order to avoid the above dangers, the electrostatic protection measures for personnel entering the anti-static work area should be confirmed before entering the electrostatic hazardous area, and they can only enter after confirmation.

[0039] National laws and regulations also have corresponding provisions and safety hazard reminders, such as:

[0040] GB / T3836.26-2019 "Guidelines for Electrostatic Hazards in Explosive Atmospheres" Article 11.1 states: "In a flammable atmosphere with an MIE of less than 10 mJ, personnel should be grounded... and ensure that personnel wear dissipative footwear."

[0041] SH / T 3097-2017 "Petrochemical Electrostatic Grounding Design Code" 5.10 Measures for Human Static Electricity Discharge stipulates: d) For workers in electrostatic hazardous areas, exposed clothing (including shoes and clothing) should have anti-static or conductive functions, and all parts of clothing should have electrical continuity.

[0042] Therefore, a new type of equipment is urgently needed to be applied to field operations in work areas without power supply, so as to ensure the control and monitoring of electrostatic protection measures for personnel in outdoor temporary work areas such as oil and gas production and explosion-hazardous areas, and to ensure the anti-static or conductive function of exposed clothing (including shoes and clothing) before workers enter electrostatic hazardous places, and to confirm the electrical continuity of clothing on various parts of the human body, and to confirm that personnel are always grounded while walking.

[0043] The following will be combined Figure 1-Figure 4 The utility model describes a personnel electrostatic protection qualification confirmation instrument.

[0044] like Figure 1 、 Figure 2 and Figure 3 As shown, in one embodiment, a personnel electrostatic protection qualification confirmation instrument includes a portable box 100, an emergency power supply 200, an electrostatic protection measure qualification confirmation instrument body 300, a human body static eliminator 400 and a metal foot pedal 500.

[0045] The portable box 100 has a box cover 110. The portable box 100 is used for easy carrying and storage of various accessories such as grounding clamps, cables, and metal pedals. It has anti-static wheels and is easy to carry. It is made of stainless steel 304 or above, with IP66 protection grade, waterproof and corrosion-resistant. It has a built-in professional electrostatic grounding clamp and a dedicated anti-static cable to facilitate on-site operation and electrostatic grounding. The size also meets the requirements for the placement of the metal foot pedal 500, and it has a function to prevent internal collision, making it easy to place and carry the metal foot pedal 500.

[0046] The emergency power supply 200 is used for power supply guarantee and cyclic charging, and the emergency power supply 200 is installed in the portable box 100. The emergency power supply 200 is used for power supply guarantee and cyclic charging of this system, and can provide 12V or 24VDC long-life intrinsically safe power supply, and has its own remaining capacity display, which is convenient for identifying the power supply life and prompting timely charging and replacement.

[0047] The electrostatic protection measures qualification confirmation instrument body 300 is used to detect whether the electrostatic grounding resistance of electrostatic safety shoes and anti-static clothing, gloves and other facilities worn by personnel is qualified. The electrostatic protection measures qualification confirmation instrument body 300 is installed in a portable box 100.

[0048] The resistance detection range of the electrostatic protection measure qualification tester body 300 is 0-10 9 Ω, and the detection range can be adjusted according to the actual application scenario. The ESD Protection Qualification Verifier 300 is explosion-proof and can be directly used in explosion-hazardous environments of Class IIC gas and Class IIIC dust as needed. The explosion-proof grades can meet: Ex db iaⅡC T6 Gb, Ex ia tbⅢC T80℃Db. At the same time, the ESD Protection Qualification Verifier 300 has sealed waterproof connectors and a waterproof grade of IP66, which can be used in field work sites often encountered in severe weather such as heavy rain.

[0049] The human body static eliminator 400 is used to release static electricity from people, detect static voltage, and detect buttons when people touch them. The human body static eliminator 400 is located in a portable box 100. The vertical pole of the human body static eliminator 400 adopts a folding structure. When carrying and transporting, the vertical pole is folded and put away, and when in use, it is folded and opened and erected.

[0050] Metal footrest 500 is designed for use with anti-static shoes. It can be folded and mounted outside portable case 100. Made of stainless steel, its width is comparable to the size of a standing foot, slightly together. It can accommodate foot sizes up to size 42, making it suitable for people with larger foot sizes. It is connected to the nearest grounding bar for equipotential bonding, ensuring that static electricity from the human body is discharged directly to the grounding bar, ensuring a safe and reliable discharge path.

[0051] This portable, integrated static elimination and verification device ensures that workers' clothing, including exposed clothing, is properly protected from static electricity and conductive, as well as the electrical continuity of clothing worn on various parts of the body, before entering electrostatically hazardous areas. This device ensures that workers remain grounded while walking, ensuring that any generated and induced static electricity is readily conducted to the earth. Furthermore, it can be easily applied to field operations in areas without power, ensuring the control and monitoring of static protection measures for personnel in temporary outdoor work areas, such as oil and gas production, and explosion-hazardous areas.

[0052] It should be noted that the emergency power supply 200 is explosion-proof and is used in gas explosion-proof zones 1 and 2 and dust explosion-proof zones 21 and 22 and safe areas.

[0053] In this embodiment, the electrostatic protection measures qualification confirmation instrument body 300 can output NAMUR intrinsically safe interlock signals, and the electrostatic protection measures qualification confirmation instrument body 300 and the associated interlocking equipment realize NAMUR intrinsically safe communication and interlocking. The NAMUR signal is a standard signal for intrinsically safe digital input and frequency input that is widely used in the world.

[0054] In this embodiment, the human body static eliminator 400 has a touch ball 410 and an electrostatic voltmeter 420. The touch ball 410 is made of a subconductor material that meets national standards. The resistance of the touch ball 410 is calibrated by subtraction on the controller 330, which is unlikely to affect the qualified resistance test of the electrostatic grounding resistance of personnel anti-static measures. The electrostatic voltage 420 is used to detect the electrostatic voltage of the human body and intuitively detect the values before and after the release of the human body's electrostatic voltage.

[0055] In this embodiment, the metal pedal 500 is connected to the grounding pile 600 of the earth at the same potential. The metal pedal 500, the grounding pile 600, the human body and the electrostatic protection measures worn by the human body together constitute the detection circuit on the electrostatic protection measures qualification confirmation instrument body 300.

[0056] In this embodiment, the electrostatic protection measure qualification confirmer body 300 has a buzzer 700 .

[0057] If the resistance value of a person's ESD protection measures falls outside the national standard, the buzzer 700 will sound an alarm and output an interlock signal. If the static voltage carried by a person exceeds a preset standard, the buzzer 700 will also sound an alarm and output an interlock signal. This confirms the compliance of ESD protection measures for people entering electrostatically hazardous areas, preventing them from becoming a source of static ignition and ensuring safe and effective ESD protection.

[0058] In one embodiment, the electrostatic protection measures qualification confirmation instrument body 300 also has a main control board 310 and a display panel 320. The main control board 310 has a controller 330, and the display panel 320 has an LED status indicator 322 and a digital tube 321 or an LCD screen 321. The controller 330 is used to process the electrostatic resistance data on the detection circuit and transmit the detection results to the digital tube 321 or the LCD screen 321.

[0059] In this embodiment, see Figure 4The controller 330 includes a receiving module 331, a signal driving module 332, a communication module 333 and a display module 334. The receiving module 331 is used to receive the electrostatic resistance data on the detection circuit, the signal driving module 332 is used to instruct the buzzer 700 to alarm, and the display module 334 is used to output electrostatic protection qualification information in response to the electrostatic resistance data on the detection circuit being within the first threshold range.

[0060] In this embodiment, the signal driving module 332 includes an output unit 335 and an instruction unit 336. The output unit 335 is used to output a warning signal in response to the electrostatic resistance data on the detection circuit exceeding the first threshold value. The instruction unit 336 is used to instruct the buzzer 700 to alarm based on the warning signal.

[0061] It should be noted that the first threshold is an electrostatic resistance value of 100KΩ to 1000MΩ or 0-100KΩ, or can be adjusted according to the actual application scenario. When the resistance value is not within the range of 100KΩ to 1000MΩ or 0-100KΩ, an alarm is triggered.

[0062] By outputting a warning signal, it is confirmed whether the electrostatic protection measures of personnel entering electrostatic hazardous areas are qualified, avoiding fire caused by failure of personnel's anti-static measures, and ensuring the safety and effectiveness of personnel's electrostatic protection work. At the same time, the value display of the electrostatic voltmeter 420 more intuitively shows whether the static elimination result is qualified, thereby improving safety performance.

[0063] It should be noted that the communication module 333 is an RS485 communication module.

[0064] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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.

[0065] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that variations and improvements are possible within the scope of the present invention, as would be apparent to one skilled in the art. These variations and improvements fall within the scope of the present invention. Therefore, the scope of the present invention shall be determined by the appended claims.

Claims

1. A personnel electrostatic protection qualification confirmation instrument, characterized in that: include: A portable box having a cover; An emergency power supply, used for power supply protection and cyclic charging, and installed in the portable box; The electrostatic protection measures qualification verification instrument body is used to detect whether the electrostatic grounding resistance of electrostatic safety shoes and anti-static clothing and anti-static gloves worn by personnel is qualified, and is installed in the portable box; Human body static eliminator, used for discharging static electricity from people and detecting static voltage, as well as for detecting buttons touched by human hands, and is located in a portable box; The metal foot pedal is used for people to step on with anti-static shoes and can be folded and installed outside the portable box.

2. The personnel electrostatic protection qualification confirmation instrument according to claim 1 is characterized in that: The emergency power supply is explosion-proof type and is used in gas explosion-proof zones 1 and 2 and dust explosion-proof zones 21 and 22 and safe areas.

3. The personnel electrostatic protection qualification confirmation instrument according to claim 2 is characterized in that: The electrostatic protection measures qualification confirmer body can output a NAMUR intrinsically safe interlock signal, and the electrostatic protection measures qualification confirmer body and the associated interlocking device realize NAMUR intrinsically safe communication and interlocking.

4. The personnel electrostatic protection qualification confirmation instrument according to claim 1 is characterized in that: The human body static eliminator is equipped with a touch ball and an electrostatic voltmeter. The touch ball is made of subconductor material that meets national standards. The resistance of the touch ball is calibrated by subtraction on the controller, which is unlikely to affect the qualified resistance test of the electrostatic grounding resistance of personnel anti-static measures. The electrostatic voltmeter is used to detect the electrostatic voltage of the human body.

5. The personnel electrostatic protection qualification confirmation instrument according to any one of claims 1 to 4, characterized in that: The metal pedal is connected to the grounding pile of the earth at the same potential. The metal pedal, the grounding pile, the human body and the electrostatic protection measures worn by the human body together constitute a detection circuit on the electrostatic protection measures qualification confirmation instrument body.

6. The personnel electrostatic protection qualification confirmation instrument according to claim 5 is characterized in that: The electrostatic protection measure qualification confirmation instrument body is provided with a buzzer.

7. The personnel electrostatic protection qualification confirmation instrument according to claim 6 is characterized in that: The electrostatic protection measures qualification confirmation instrument body also has a main control board and a display panel. The main control board has a controller, and the display panel has an LED status indicator and a digital tube or LCD screen. The controller is used to process the electrostatic resistance data on the detection circuit and transmit the detection results to the digital tube or LCD screen.

8. The personnel electrostatic protection qualification confirmation instrument according to claim 7 is characterized in that: The controller includes a receiving module, a signal driving module, a communication module and a display module. The receiving module is used to receive electrostatic resistance data on the detection circuit, the signal driving module is used to instruct the buzzer to alarm, and the display module is used to output electrostatic protection qualification information in response to the electrostatic resistance data on the detection circuit being within a first threshold range.

9. The personnel electrostatic protection qualification confirmation instrument according to claim 8, characterized in that: The signal driving module includes an output unit and an instruction unit. The output unit is used to output an early warning signal in response to the electrostatic resistance data on the detection circuit exceeding a first threshold value. The instruction unit is used to instruct the buzzer to alarm based on the early warning signal.

10. The personnel electrostatic protection qualification confirmation instrument according to claim 8, characterized in that: The communication module is an RS485 communication module.

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