Special test tool for static grounding system of RTR tank car

Abstract

The utility model relates to the field of electrostatic grounding systems, in particular to a special test tool for an RTR tank car electrostatic grounding system, which comprises a junction box, an internal circuit is arranged in the junction box, one end of the junction box is provided with a grounding wire, the other end of the grounding wire is connected with a grounding steel plate, and one end of the junction box is provided with a tool clamp outgoing line. The other end of the tool clamp leading-out wire is connected with the test tool clamp, and the grounding wire and the tool clamp leading-out wire are both connected to an internal circuit. The special test tool for the RTR tank car electrostatic grounding system can quickly check whether the grounding clamp, the grounding wire and the grounding identification system have faults or not, the tank car does not need to wait for testing in the area, and the maintenance cost and the maintenance time are greatly reduced.

Description

Technical Field

[0001] The utility model relates to the field of electrostatic grounding systems, in particular to a special testing tool for an electrostatic grounding system of an RTR tank truck. Background Art

[0002] During daily use, it was found that when the special grounding clamp was connected to the tank truck grounding point, the RTR tank truck special electrostatic grounding system could not identify the connected object as a tank truck or the tank truck grounding resistance was greater than 10Ω, and the interlock did not allow unloading. For the above faults, the RTR tank truck electrostatic grounding system may have the following problems: poor tank truck grounding contact, damaged grounding clamp, damaged grounding clamp connection line, etc. When maintenance personnel want to test, the tank truck cannot wait for a long time for testing, resulting in a waste of maintenance time and an increase in maintenance costs.

[0003] As for the electrostatic grounding system of the RTR tank truck after repair, its performance test after repair cannot be completed, and it needs to be used before the RTR tank truck is unloaded. This results in a long unloading time and is prone to problems such as unsuccessful repair and inability to unload. Utility Model Content

[0004] In order to solve the above technical deficiencies, the utility model provides a special test tool for the electrostatic grounding system of an RTR system tank truck, which can test the performance of the system to ensure that the system is always stable and reliable during use, thereby improving the unloading efficiency of the tank truck.

[0005] The utility model discloses a special test tool for the electrostatic grounding system of an RTR tank truck, comprising a junction box, wherein an internal circuit is arranged in the junction box, a grounding wire is arranged at one end of the junction box, the other end of the grounding wire is connected to a grounding steel plate, a tool clamp lead-out wire is arranged at one end of the junction box, the other end of the tool clamp lead-out wire is connected to a test tool clamp, and the grounding wire and the tool clamp lead-out wire are both connected to the internal circuit.

[0006] The internal circuit structure is as follows: a No. 1 capacitor is provided on the grounding wire in the junction box, and a No. 1 resistor, a No. 2 resistor, a No. 3 resistor and a No. 4 resistor are sequentially connected in series on the side of the No. 1 capacitor close to the tool clip lead-out line, and the No. 4 resistor is connected to the tool clip lead-out line. The No. 1 capacitor is connected in parallel with the No. 2 capacitor, the No. 3 capacitor, the No. 4 capacitor and the No. 5 capacitor, and the resistance values ​​of the No. 1 resistor, the No. 2 resistor, the No. 3 resistor and the No. 4 resistor are all 250Ω, the capacitance values ​​of the No. 1 capacitor and the No. 2 capacitor are 500pf, the capacitance values ​​of the No. 3 capacitor and the No. 4 capacitor are 1000pf, and the capacitance value of the No. 5 capacitor is 2000pf.

[0007] The utility model provides a special test tool for the electrostatic grounding system of an RTR tank truck, which can quickly check whether there are faults in the grounding clamp, the grounding wire and the grounding identification system, without the tank truck waiting for testing in the area, thus greatly reducing maintenance costs and maintenance time. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a structural diagram of the electrostatic grounding system of the RTR tanker;

[0009] Figure 2 It is a schematic diagram of the structure of the utility model;

[0010] Figure 3 This is a schematic diagram of the structure of the junction box. DETAILED DESCRIPTION

[0011] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0012] Embodiment 1:

[0013] like Figure 2-Figure 3 As shown, the utility model discloses a special test tool for the electrostatic grounding system of an RTR tank truck, including a junction box 8, an internal circuit is arranged in the junction box 8, a grounding wire 7 is arranged at one end of the junction box 8, the other end of the grounding wire 7 is connected to a grounding steel plate 6, the grounding steel plate 6 simulates the contact between the tank truck 18 and the ground, a tool clamp lead wire 9 is arranged at one end of the junction box 8, and the other end of the tool clamp lead wire 9 is connected to a test tool clamp 10.

[0014] The internal circuit structure is as follows: a No. 1 capacitor 20 is provided on the grounding wire 7 in the junction box 8, and a No. 1 resistor 15, a No. 2 resistor 15, a No. 3 resistor 16 and a No. 4 resistor 17 are sequentially connected in series on the side of the No. 1 capacitor 20 close to the tool clamp lead-out line 9, and the No. 4 resistor 17 is connected to the tool clamp lead-out line 9. The No. 1 capacitor 20 is connected in parallel with the No. 2 capacitor 11, the No. 3 capacitor 12, the No. 4 capacitor 14 and the No. 5 capacitor 13, and the resistance values ​​of the No. 1 resistor 15, the No. 2 resistor 15, the No. 3 resistor 16 and the No. 4 resistor 17 are all 250Ω, the capacitance values ​​of the No. 1 capacitor 20 and the No. 2 capacitor 11 are 500pf, the capacitance values ​​of the No. 3 capacitor 12 and the No. 4 capacitor 14 are 1000pf, and the capacitance value of the No. 5 capacitor 13 is 2000pf, which is used to simulate the resistance value and capacitance to ground of the tank truck 18.

[0015] like Figure 1The RTR tank truck electrostatic grounding system shown is an existing design, including a tank truck 18, the tank truck 18 is provided with a special grounding point 19, a tank truck special explosion-proof electrostatic inspection system, the tank truck special electrostatic explosion-proof system 1 is provided with a grounding bus 4, which conducts static electricity to the ground, and the tank truck special electrostatic explosion-proof system 1 is connected to a grp junction box 2 on one side, the grp junction box 2 is connected to a special tool clamp 3, and the tank truck special electrostatic explosion-proof system 1 is connected to a power supply and an interlocking signal 5; when the RTR tank truck electrostatic grounding system is working normally, the special tool wiring clamp is clamped at the special grounding point 19 of the tank truck 18, at this time, the tank truck 18, the ground, and the tank truck special electrostatic explosion-proof system 1 form a loop to detect whether the tank truck 18 is connected and the size of the grounding resistance. When the tank truck 18 is detected and the grounding resistance is less than 10Ω, the RTR tank truck electrostatic grounding system transmits a signal through the power supply and the interlocking signal 5 to control the tank truck 18 to unload. When the tank truck 18 cannot be detected or the grounding resistance is greater than 10Ω, the signal is disconnected and the tank truck 18 stops unloading.

[0016] When testing the electrostatic grounding system of the RTR tank truck, the test tool clip 10 of the special test tool for the electrostatic grounding system of the RTR tank truck is grounded, the grounding steel plate 6 is connected to the special tool clip 3 of the electrostatic grounding system of the RTR tank truck, the special test tool for the electrostatic grounding system of the RTR tank truck, the special electrostatic explosion-proof system 1 of the tank truck, and the ground form a loop to simulate the access of the tank truck 18 to complete the performance test of the electrostatic grounding system of the RTR tank truck to ensure its stability, ensure rapid access to the tank truck, remove static electricity, and ensure safe and rapid unloading.

[0017] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0018] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be an interactive relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0019] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0020] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simplified modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A special test tool for the electrostatic grounding system of RTR tank trucks. It is characterized in that The invention comprises a junction box (8), wherein an internal circuit is arranged in the junction box (8), a grounding wire (7) is arranged at one end of the junction box (8), and the other end of the grounding wire (7) is connected to a grounding steel plate (6), a tool clamp lead wire (9) is arranged at one end of the junction box (8), and the other end of the tool clamp lead wire (9) is connected to a test tool clamp (10), and the grounding wire (7) and the tool clamp lead wire (9) are both connected to the internal circuit.

2. A special test tool for electrostatic grounding system of RTR tank truck according to claim 1, It is characterized in that The internal circuit structure is as follows: a No. 1 capacitor (20) is provided on the grounding wire (7) in the junction box (8); a No. 1 resistor (15), a No. 2 resistor (15), a No. 3 resistor (16) and a No. 4 resistor (17) are sequentially connected in series on the side of the No. 1 capacitor (20) close to the tool clamp lead wire (9); the No. 4 resistor (17) is connected to the tool clamp lead wire (9); the No. 1 capacitor (20) is connected to the No. 2 capacitor (11) and the No. 3 capacitor (12); , capacitor No. 4 (14) and capacitor No. 5 (13) are connected in parallel, the resistance values ​​of resistor No. 1 (15), resistor No. 2 (15), resistor No. 3 (16) and resistor No. 4 (17) are all 250Ω, the capacitance values ​​of capacitor No. 1 (20) and capacitor No. 2 (11) are 500pf, the capacitance values ​​of capacitor No. 3 (12) and capacitor No. 4 (14) are 1000pf, and the capacitance value of capacitor No. 5 (13) is 2000pf.

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