CN217957524U - Protection monitoring cabinet - Google Patents
Protection monitoring cabinet Download PDFInfo
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- CN217957524U CN217957524U CN202222946113.3U CN202222946113U CN217957524U CN 217957524 U CN217957524 U CN 217957524U CN 202222946113 U CN202222946113 U CN 202222946113U CN 217957524 U CN217957524 U CN 217957524U
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Abstract
The application relates to a protection monitoring cabinet, include: the cabinet body, and protection monitor and filling station management system of setting in the cabinet body, the tanker aircraft protector through the protection monitor protects the tanker aircraft signal, the network port protector protects network signal, the video monitoring protector protects video monitoring signal, the sensor protector protects sensing signal, the power protector protects alternating current power supply signal, and with each protector operating condition and electromagnetic pulse emergence condition input signal processor, monitor by liquid crystal display after signal processor handles, the protection monitor not only can effectively protect the signal of a plurality of equipment, and can show each protector operating condition, electromagnetic pulse emergence intensity, time and statistics, in addition with protection monitor and filling station management system integration in a rack, occupation of land space has been saved effectively.
Description
Technical Field
The application relates to the technical field of gas station protection, in particular to a protection monitoring cabinet.
Background
With the continuous improvement of the automation level of the gas station, the signal lightning protection of each device of the gas station is very important.
The general protection product through-flow capacity of management system installation of present filling station is too big and the residual voltage is too high, can't satisfy filling station management system's protection requirement, filling station management system belongs to distributed information system simultaneously, general protection product only protects the monitoring to the signal of a certain equipment, at the electromagnetic shield, electromagnetic compatibility, do not carry out whole centralized consideration in the aspect of electromagnetic energy cooperation etc, be difficult to play effectual protection monitoring effect, filling station management system and protection monitoring devices set up at two cabinets in addition, it is great to take up an area of the space.
Therefore, how to perform centralized protection monitoring on the devices in the gasoline station management system and integrate the protection monitoring device and the gasoline station management system into one cabinet is a technical problem to be solved urgently in the field of the technical staff.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problem, an object of the present application is to provide a protection monitoring cabinet; the application provides a protection monitoring rack not only can effectively protect the monitoring to the signal of a plurality of equipment, will protect monitor and filling station management system integration in a rack moreover.
The technical scheme provided by the application is as follows:
a protective monitoring cabinet comprising:
the gas station monitoring system comprises a cabinet body, a protection monitor and a gas station management system, wherein the protection monitor and the gas station management system are arranged in the cabinet body;
the protection monitor comprises an oiling machine protector, a network port protector, a video monitoring protector, a sensor protector, a power supply protector, a signal processor and a liquid crystal display screen;
the first end of the oiling machine guard is connected with an oiling machine signal input port, and the second end of the oiling machine guard is respectively connected with the signal processor and the gas station management system;
the first end of the network port protector is connected with a network signal input port, and the second end of the network port protector is respectively connected with the signal processor and the gas station management system;
the first end of the video monitoring protector is connected with a video monitoring signal input port, and the second end of the video monitoring protector is respectively connected with the signal processor and the gas station management system;
the first end of the sensor protector is connected with a sensing signal input port, and the second end of the sensor protector is respectively connected with the signal processor and the gas station management system;
the first end of the power supply protector is connected with a power supply signal input port, and the second end of the power supply protector is respectively connected with the signal processor and the gas station management system;
the liquid crystal display screen is connected with the signal processor and used for displaying the oiling machine protector, the network port protector, the video monitoring protector, the sensor protector and the working state of the power protector.
Preferably, the sensor guards include a tank level gauge guard, a tank leak gauge guard, and a pipe-side leak gauge guard, wherein:
the first end of the oil tank level instrument protector is connected with an oil tank level signal input port, and the second end of the oil tank level instrument protector is respectively connected with the signal processor and the gas station management system;
the first end of the oil tank leakage instrument protector is connected with an oil tank leakage signal input port, and the second end of the oil tank leakage instrument protector is respectively connected with the signal processor and the gas station management system;
the first end of the pipeline side leakage instrument protector is connected with the pipeline side leakage signal input port, and the second end of the pipeline side leakage instrument protector is respectively connected with the signal processor and the gas station management system.
Preferably, the power supply protector includes a first power supply protector and a second power supply protector, wherein:
the first end of the first power supply protector is connected with the power supply signal input port;
the second end of the first power protector is respectively connected with the first end of the second power protector, the signal processor and the gas station management system;
and the second end of the second power protector is respectively connected with the signal processor and the gas station management system.
Preferably, the gas station management system comprises a network switch, a video switch, a tank level gauge, a tank leakage gauge, a pipeline side leakage gauge, an ac-to-dc power module and a circuit breaker, wherein:
the second end of the fuel dispenser protector and the second end of the network port protector are respectively connected with the network switch;
the second end of the video monitoring protector is connected with the video switch;
the second end of the oil tank liquid level instrument protector is connected with the oil tank liquid level instrument;
the second end of the oil tank leakage instrument protector is connected with the oil tank leakage instrument;
the second end of the pipeline side leakage instrument protector is connected with the pipeline side leakage instrument;
the second end of the first power supply protector is connected with the circuit breaker;
the second end of the second power supply protector is connected with the first end of the alternating current-to-direct current power supply module;
and the second end of the AC-to-DC power supply module is respectively connected with the signal processor and the liquid crystal display screen.
Preferably, the gasoline station management system further comprises an uninterruptible power supply connected to the circuit breaker.
Preferably, the gasoline station management system further comprises a power distribution unit connected to the circuit breaker.
Preferably, a grounding bar is arranged in the cabinet body, wherein:
the grounding end of the oiling machine protector, the grounding end of the network port protector, the grounding end of the video monitoring protector, the grounding end of the oil tank level instrument protector, the grounding end of the oil tank leakage instrument protector, the grounding end of the pipeline side leakage instrument protector and the grounding end of the power supply protector are all connected with the first end of the grounding bar;
the second end of the grounding bar is grounded.
Preferably, the fuel dispenser guard comprises:
the input end of the grounding bar is connected with the signal input port of the oiling machine, and the grounding end of the grounding bar is connected with the first preceding stage protection circuit of the grounding bar;
the input end of the first protection circuit is connected with the output end of the first pre-stage protection circuit, and the grounding end of the first protection circuit is connected with the first protection isolation circuit of the grounding bar;
the input end is connected with the output end of the first protection isolation circuit, the grounding end is connected with the grounding bar, and the output end is connected with the signal processor and the first rear-stage protection circuit of the gas station management system.
Preferably, the network port protector comprises:
the input end of the first pre-stage protection circuit is connected with the network signal input port, and the grounding end of the first pre-stage protection circuit is connected with the grounding bar;
the input end of the first pre-stage protection circuit is connected with the output end of the first pre-stage protection circuit, and the ground end of the first pre-stage protection circuit is connected with the ground bar;
the input end is connected with the output end of the second protection isolation circuit, the grounding end is connected with the grounding bar, and the output end is connected with the signal processor and a second rear-stage protection circuit of the gas station management system.
Preferably, the video surveillance guard comprises:
the input end of the first pre-stage protection circuit is connected with the video monitoring signal input port, and the grounding end of the first pre-stage protection circuit is connected with the grounding bar;
the input end of the first pre-stage protection circuit is connected with the output end of the first pre-stage protection circuit, and the ground end of the first pre-stage protection circuit is connected with the ground bar;
the input end is connected with the output end of the third protection isolation circuit, the grounding end is connected with the grounding bar, and the output end is connected with the signal processor and a third rear-stage protection circuit of the gas station management system.
Compared with the prior art, the application provides a protection monitoring rack includes: the cabinet body, and protection monitor and filling station management system of setting in the cabinet body, the tanker aircraft protector through the protection monitor protects the tanker aircraft signal, the network port protector protects the network signal, the video monitoring protector protects the video monitoring signal, the sensor protector protects the sensing signal, the power protector protects alternating current power supply signal, and with each protector operating condition and electromagnetic pulse emergence condition input signal processor, monitor by liquid crystal display after signal processor handles, the protection monitor not only can effectively protect the signal of a plurality of equipment, and can show each protector operating condition, electromagnetic pulse takes place intensity, time and statistics, in addition with protection monitor and filling station management system integration in a rack, occupation of land space has been saved effectively.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a block diagram of a protection monitoring cabinet provided in an embodiment of the present application;
fig. 2 is another block diagram of a protection monitoring cabinet provided in an embodiment of the present application;
fig. 3 is a block diagram of another structure of a protection monitoring cabinet provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram of a protection monitoring cabinet provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of a protective power distribution management box provided in an embodiment of the present application;
reference numerals: 10-a cabinet body; 20-a protective monitor; 30-a gasoline station management system; 40-a ground bar; 50-protection power distribution management box; 60-cabinet front door;
10-a cabinet body; 11-a heat dissipation port; 12-a sliding wheel;
20-a protective monitor; 21-oil feeder protector; 22-network port protector; 23-video surveillance guards; 24-a sensor guard; 25-power supply protector; 26-a signal processor; 27-a liquid crystal display screen; 28-boundary safety device guards;
24-a sensor guard; 241-oil tank level gauge protector; 242-tank leak gauge protector; 243-pipeline side leakage instrument protector;
25-power supply protector; 251-a first power protector; 252-a second power guard;
30-a gasoline station management system; 31-a network switch; 32-a video switch; 33-oil tank level gauge; 34-a tank leakage meter; 35-pipeline side leakage instrument; 36-a.c. to d.c. power supply module; 37-a circuit breaker; 38-an uninterruptible power supply; 39-power distribution unit; 301-a server; 302-border security devices;
a10-oiling machine signal input port; a20-network signal input port; a30-video monitoring signal input port; a40-a sensing signal input port; a50-power signal input port;
a40-a sensing signal input port; a41-oil tank liquid level signal input port; a42-tank leakage signal input port; a43-pipeline side leakage signal input port;
21-oil feeder protector; 211-a first previous stage protection circuit; 212-first protection isolation circuit; 213-first post-stage protection circuit;
22-network port protector; 221-a second previous stage protection circuit; 222-a second protection isolation circuit; 223-a second post-stage protection circuit;
23-video surveillance guards; 231-third previous stage protection circuit; 232-a third protection isolation circuit; 233-a third post-stage protection circuit;
241-oil tank level gauge protector; 2411-a fourth pre-stage protection circuit; 2412-a fourth protection isolation circuit; 2413-a fourth back-stage protection circuit;
242-tank leak gauge protector; 2421-a fifth previous stage protection circuit; 2422-a fifth protection isolation circuit; 2423-a fifth post-protection circuit;
243-pipeline side leakage instrument protector; 2431-sixth previous stage protection circuit; 2432-a sixth protection isolation circuit; 2433-a sixth post-stage protection circuit;
50-protection power distribution management box; 51-a front plate; 52-a base plate; 53-a back plate;
51-a front plate; 511-signal line terminal; 512-working state indicator light;
52-a base plate; 521, a terminal block; 522-ground terminal;
53-a back plate; 531-high current plug terminal.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
It will be understood that when an element is referred to as being "fixed" or "disposed" to another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the application and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be constructed in operation as a limitation of the application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" or "a plurality" means two or more unless specifically limited otherwise.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the practical limit conditions of the present application, so that the modifications of the structures, the changes of the ratio relationships, or the adjustment of the sizes, are not essential to the technology, and the modifications, the changes of the ratio relationships, or the adjustment of the sizes, are all within the scope of the technical contents disclosed in the present application without affecting the efficacy and the achievable purpose of the present application.
As shown in fig. 1, an embodiment of the present application provides a protection monitoring cabinet, including: the gas station monitoring system comprises a cabinet body 10, and a protection monitor 20 and a gas station management system 30 which are arranged in the cabinet body 10; a protection monitor 20 including a fuel dispenser protector 21, a network port protector 22, a video monitoring protector 23, a sensor protector 24, a power supply protector 25, a signal processor 26, and a liquid crystal display 27; the first end of the fuel dispenser guard 21 is connected with the fuel dispenser signal input port A10, and the second end of the fuel dispenser guard 21 is respectively connected with the signal processor 26 and the gas station management system 30; a first end of the network port protector 22 is connected to the network signal input port a20, and a second end of the network port protector 22 is connected to the signal processor 26 and the gasoline station management system 30, respectively; a first end of the video monitoring protector 23 is connected with a video monitoring signal input port A30, and a second end of the video monitoring protector 23 is respectively connected with the signal processor 26 and the gas station management system 30; a first end of the sensor protector 24 is connected with a sensing signal input port A40, and a second end of the sensor protector 24 is respectively connected with the signal processor 26 and the gas station management system 30; a first end of the power supply protector 25 is connected to the power supply signal input port a50, and a second end of the power supply protector 25 is connected to the signal processor 26 and the gas station management system 30, respectively; and a liquid crystal display 27 connected to the signal processor 26 for displaying the operating states of the fuel dispenser guard 21, the network port guard 22, the video monitor guard 23, the sensor guard 24, and the power supply guard 25.
In this embodiment, the fuel dispenser signal input port a10, the network signal input port a20, the video monitoring signal input port a30, the sensing signal input port a40, and the power signal input port a50 are disposed in the protection monitor 20.
In this embodiment, the fuel dispenser protector 21, the network port protector 22, the video monitoring protector 23, and the sensor protector 24 adopt multi-stage surge protection, which can effectively suppress surge voltage on a signal line caused by lightning strike or other reasons, and prevent equipment in the gas station management system 30 connected to the second end of the protector from being damaged due to overvoltage; the power protector 25 is made of a high-strength explosion-proof housing, and the internal protection components can effectively suppress overvoltage coupled to the power line due to lightning strike or overvoltage, so as to prevent equipment in the gas station management system 30 connected to the second end of the power protector 25 from being damaged due to overvoltage.
Compared with the prior art, the application provides a protection monitoring cabinet includes: the cabinet body 10, and protection monitor 20 and gas station management system 30 set up in the cabinet body 10, the tanker aircraft protector 21 through the protection monitor 20 protects the tanker aircraft signal, the network port protector 22 protects the network signal, the video monitoring protector 23 protects the video monitoring signal, the sensor protector 24 protects the sensing signal, the power protector 25 protects the alternating current power signal, and input each protector operating condition and electromagnetic pulse occurrence condition into the signal processor 26, monitor by the liquid crystal display 27 after the processing of the signal processor 26, the protection monitor 20 not only can effectively protect the signal of a plurality of equipment, and can show each protector operating condition, the electromagnetic pulse occurrence intensity, time and statistics, in addition, integrate the protection monitor 20 and gas station management system 30 in a rack, occupied space has been saved effectively.
In an embodiment, as shown in fig. 1, the sensor guard 24 includes a tank level gauge guard 241, a tank leakage gauge guard 242, and a pipe-side leakage gauge guard 243, where: a first end of the oil tank level gauge protector 241 is connected with an oil tank level signal input port a41, and a second end of the oil tank level gauge protector 241 is respectively connected with the signal processor 26 and the gas station management system 30; a first end of the oil tank leakage instrument protector 242 is connected with the oil tank leakage signal input port a42, and a second end of the oil tank leakage instrument protector 242 is respectively connected with the signal processor 26 and the gas station management system 30;
a first end of the duct side leakage protector 243 is connected to the duct side leakage signal input port a43, and a second end of the duct side leakage protector 243 is connected to the signal processor 26 and the gasoline station management system 30, respectively. The oil tank level gauge protector 241, the oil tank leakage gauge protector 242, and the pipeline side leakage gauge protector 243 adopt multi-stage surge protection, which can effectively suppress surge voltage on a signal line caused by lightning strike or other reasons, and prevent equipment in the gas station management system 30 connected to the second end of the protector from being damaged due to overvoltage. In this embodiment, the tank level signal input port a41, the tank leakage signal input port a42, and the pipeline side leakage signal input port a43 are disposed in the protective monitor 20.
In an embodiment, as shown in fig. 2, the power supply guard 25 includes a first power supply guard 251 and a second power supply guard 252, where: a first end of the first power supply protector 251 is connected to the power supply signal input port a50; the second end of the first power protector 251 is connected to the first end of the second power protector 252, the signal processor 26 and the gasoline station management system 30, respectively; a second end of the second power source guard 252 is connected to the signal processor 26 and the gasoline station management system 30, respectively. The mains power is input to the first power protection unit 251 through the power signal input port a50, the first power protection unit 251 can effectively suppress the overvoltage coupled to the power line due to lightning strike or overvoltage, and the second power protection unit 252 can further suppress the overvoltage remaining on the power line. In this embodiment, the power supply protector 25 adopts a single-phase power supply parallel surge protector, that is, the first power supply protector 251 and the second power supply protector 252 both adopt single-phase power supply parallel surge protectors, and have functions of degradation, audible and visual alarm, remote signal output, and the like.
In an embodiment, as shown in fig. 2, the gas station management system 30 in this embodiment includes a network switch 31, a video switch 32, a tank level meter 33, a tank leakage meter 34, a pipeline side leakage meter 35, an ac-to-dc power supply module 36, and a breaker 37, where: the second end of the fuel dispenser guard 21 and the second end of the network port guard 22 are connected to the network switch 31, respectively; the second end of the video monitoring protector 23 is connected with the video switch 32; the second end of the oil tank level gauge protector 241 is connected with the oil tank level gauge 33; a second end of the tank leak meter protector 242 is connected with the tank leak meter 34; the second end of the line side leak meter protector 243 is connected to the line side leak meter 35; a second end of the first power supply protector 251 is connected to the breaker 37; a second end of the second power supply protector 252 is connected to a first end of the ac-to-dc power supply module 36; the second end of the ac-to-dc power supply module 36 is connected to the signal processor 26 and the lcd 27, respectively. Because the overvoltage in the power line has a relatively large influence on the lcd 27 and the signal processor 26, and the lcd 27 and the signal processor 26 need to input dc power, after the ac power in the power line is subjected to secondary overvoltage suppression protection by the first power protector 251 and the second power protector 252, the ac power is converted into dc power by the ac-to-dc power module 36 and then input into the lcd 27 and the signal processor 26. Through setting up circuit breaker 37, can break away from the back stage circuit in time from the main circuit when the short circuit appears in the back stage circuit of circuit breaker 37 to avoid influencing the use of other equipment.
In this embodiment, as shown in fig. 4, the protective monitor 20 further includes a boundary safety device protector 28, a first end of the boundary safety device protector 28 is connected to the boundary safety signal input port, a second end of the boundary safety device protector 28 is respectively connected to the signal processor 26 and the boundary safety device 302 in the service station management system 30, the boundary safety device protector 28 adopts multi-stage surge protection, which can effectively suppress surge voltage generated on the boundary safety signal line due to lightning strike or other reasons, and prevent the boundary safety device 302 connected to the second end of the boundary safety device protector 28 from being damaged due to overvoltage.
As shown in fig. 4 and 5, in the present embodiment, a protection power distribution management box 50 is disposed in the cabinet 10, the protection power distribution management box 50 includes a front plate 51, a bottom plate 52 and a back plate 53, the front plate 51 carries a signal line terminal 511 for signal acquisition and communication, and the front plate 51 is provided with an operating status indicator lamp 512; the bottom plate 52 carries the signal processor 26, the network port protector 22, the first power supply protector 251 and the second power supply protector 252, the ac-dc power supply module 36, the circuit breaker 37, the terminal block 521, and the ground terminal 522 for connecting with the ground block 40, wherein the signal line terminal 511 is fixedly connected with the signal processor 26, and the signal processor 26 is not shown in the drawing due to the shielding of the front plate 51; the backplane 53 carries a high current plug terminal 531, and the high current plug terminal 531 is used for connecting the ups 38 and the power distribution unit 39.
As shown in fig. 4, in the present embodiment, a heat dissipating port 11 is further disposed at the top end of the cabinet 10, and a fan is disposed in the heat dissipating port 11; the bottom end of the cabinet 10 is provided with a sliding wheel 12, and the cabinet 10 can realize 360-degree rotation and displacement through the sliding wheel 12; the cabinet also includes a cabinet front door 60 rotatably connected to the cabinet body 10.
In one embodiment, as shown in fig. 2 and 4, the gas station management system 30 further includes an uninterruptible power supply 38 connected to the circuit breaker 37. When the commercial power is input normally, the uninterrupted power supply 38 supplies the commercial power input from the circuit breaker 37 to the load for use after stabilizing the voltage, and the uninterrupted power supply 38 is an alternating current commercial power voltage stabilizer and also charges the battery in the machine; when the utility power is interrupted (such as an accident power failure), the uninterruptible power supply 38 immediately supplies the 220V alternating current to the load by the method of inversion conversion, so that the load can maintain normal operation and the software and hardware of the load can be protected from being damaged. The uninterruptible power supply 38 is used to supply power to the network switch 31, the video switch 32, and the server 301 in the gasoline station management system 30.
As an implementation manner, in the embodiment of the present application, as shown in fig. 2 and 4, the gas station management system 30 further includes a power distribution unit 39 connected to the circuit breaker 37. The left side and the right side of the back of the cabinet are provided with 10-bit Power Distribution units 39 (namely PDU) for supplying Power to equipment in the cabinet or external equipment of the cabinet, the interface is a national standard 10A interface, wherein the Power Distribution Unit 39 on the right side of the back of the cabinet is not shown due to being shielded; the PDU is designed for providing power distribution for the cabinet-mounted electrical equipment, has various series specifications of different functions, different mounting modes and different insertion combinations, and can provide a proper rack-mounted power distribution solution for different power environments. Due to the application of the PDU, the distribution of the power supply in the cabinet is more orderly, reliable, safe, professional and attractive, and the maintenance of the power supply in the cabinet is more convenient and reliable.
As an implementation manner, in the embodiment of the present application, as shown in fig. 3, a grounding bar 40 is disposed inside the cabinet 10, wherein: the ground terminal of the dispenser guard 21, the ground terminal of the network port guard 22, the ground terminal of the video monitor guard 23, the ground terminal of the tank level gauge guard 241, the ground terminal of the tank leakage gauge guard 242, the ground terminal of the pipe-side leakage gauge guard 243, and the ground terminal of the power supply guard 25 are all connected to the first end of the ground row 40; a second end of the ground bank 40 is grounded. In this embodiment, not only the grounding end of each protector is equipotentially grounded through grounding bar 40, but also other devices to be grounded in the cabinet are equipotentially grounded through grounding bar 40, so that reliable grounding and effective grounding of each device in the cabinet can be effectively ensured.
As an embodiment, in the present embodiment, as shown in fig. 3, the dispenser guard 21 includes: the input end of the grounding circuit is connected with a signal input port A10 of the oiling machine, and the grounding end of the grounding circuit is connected with a first preceding stage protection circuit 211 of the grounding bar 40; the input end is connected with the output end of the first pre-stage protection circuit 211, and the grounding end is connected with the first protection isolation circuit 212 of the grounding bar 40; the input end is connected with the output end of the first protection isolation circuit 212, the ground end is connected with the ground bar 40, and the output end is connected with the signal processor 26 and the first post-protection circuit 213 of the gasoline station management system 30. In this embodiment, the first front-stage protection circuit 211, the first protection isolation circuit 212, and the first rear-stage protection circuit 213 form the protection device 21 for the fuel dispenser, which can be designed by multi-stage protection measures and has the functions of failure alarm, common mode protection, and differential mode protection.
In an embodiment, as shown in fig. 3, the network port protector 22 includes: a second pre-stage protection circuit 221 having an input terminal connected to the network signal input port a20 and a ground terminal connected to the ground bar 40; a second protection isolation circuit 222 having an input terminal connected to the output terminal of the second pre-stage protection circuit 221 and a ground terminal connected to the ground bar 40; the input terminal is connected to the output terminal of the second protection isolation circuit 222, the ground terminal is connected to the ground bar 40, and the output terminal is connected to the signal processor 26 and the second post-protection circuit 223 of the gasoline station management system 30. In this embodiment, the second front-stage protection circuit 221, the second protection isolation circuit 222, and the second rear-stage protection circuit 223 form the network port protector 22 in combination, which can be designed by multi-stage protection measures and has the functions of working state failure alarm, common mode protection, and differential mode protection.
In an embodiment, as shown in fig. 3, the video surveillance guard 23 includes: a third pre-stage protection circuit 231, the input end of which is connected with the video monitoring signal input port a30 and the ground end of which is connected with the ground bar 40; the input end is connected with the output end of the third preceding stage protection circuit 231, and the grounding end is connected with the third protection isolation circuit 232 of the grounding bar 40; the input terminal is connected to the output terminal of the third protection isolation circuit 232, the ground terminal is connected to the ground bar 40, and the output terminal is connected to the signal processor 26 and the third post-protection circuit 233 of the gasoline station management system 30. In this embodiment, the third front-stage protection circuit 231, the third protection isolation circuit 232, and the third rear-stage protection circuit 233 form the video monitoring protector 23, which can be designed by multi-stage protection measures and has the functions of working state failure warning, common mode protection, and differential mode protection.
As shown in fig. 3, in the present embodiment, the tank level gauge guard 241 includes: the input end of the fourth pre-stage protection circuit is connected with an oil tank liquid level signal input port A41, and the grounding end of the fourth pre-stage protection circuit is connected with the grounding bar 40; the input end of the fourth pre-stage protection circuit 2411 is connected with the output end of the fourth pre-stage protection circuit 2411, and the ground end of the fourth pre-stage protection circuit 2412 is connected with the ground bar 40; the input end is connected to the output end of the fourth protection isolation circuit 2412, the ground end is connected to the ground bar 40, and the output end is connected to the signal processor 26 and the fourth post-protection circuit 2413 of the gasoline station management system 30. In this embodiment, the fourth front-stage protection circuit 2411, the fourth protection isolation circuit 2412 and the fourth rear-stage protection circuit 2413 are combined to form the oil tank level gauge protector 241, which can be designed by multi-stage protection measures and has the functions of working state failure warning, common mode protection and differential mode protection.
As shown in fig. 3, in the present embodiment, the tank leak detector protector 242 includes: the input end of the fifth pre-stage protection circuit 2421 is connected with the oil tank leakage signal input port A42, and the ground end of the fifth pre-stage protection circuit is connected with the ground bar 40; the input end is connected with the output end of the fifth pre-stage protection circuit 2421, and the grounding end is connected with the fifth protection isolation circuit 2422 of the grounding bar 40; the input end is connected to the output end of the fifth protection isolation circuit 2422, the ground end is connected to the ground bar 40, and the output end is connected to the signal processor 26 and the fifth post-protection circuit 2423 of the gasoline station management system 30. In this embodiment, the fifth front-stage protection circuit 2421, the fifth protection isolation circuit 2422 and the fifth rear-stage protection circuit 2423 are combined to form the oil tank leakage instrument protector 242, which can be designed by using multiple protection measures and has the functions of working state failure warning, common mode protection and differential mode protection.
As shown in fig. 3, in the present embodiment, the duct side leakage meter protector 243 includes: the input end of the sixth pre-stage protection circuit is connected with the pipeline side leakage signal input port A43, and the grounding end of the sixth pre-stage protection circuit is connected with the grounding bar 40; a sixth protection isolation circuit 2432 having an input terminal connected to the output terminal of the sixth pre-stage protection circuit 2431 and a ground terminal connected to the ground bar 40; the input terminal is connected to the output terminal of the sixth protection isolation circuit 2432, the ground terminal is connected to the ground bar 40, and the output terminal is connected to the signal processor 26 and the sixth post-protection circuit 2433 of the gasoline station management system 30. In this embodiment, the sixth pre-stage protection circuit 2431, the sixth protection and isolation circuit 2432 and the sixth post-stage protection circuit 2433 form the pipeline side leakage instrument protector 243, which can be designed by multi-stage protection measures and has the functions of working state failure alarm, common mode protection and differential mode protection.
The embodiments in the present specification are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same or similar parts in each embodiment are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A protective monitoring cabinet, comprising:
the gas station monitoring system comprises a cabinet body, a protection monitor and a gas station management system, wherein the protection monitor and the gas station management system are arranged in the cabinet body;
the protection monitor comprises an oiling machine protector, a network port protector, a video monitoring protector, a sensor protector, a power supply protector, a signal processor and a liquid crystal display screen;
the first end of the oiling machine guard is connected with an oiling machine signal input port, and the second end of the oiling machine guard is respectively connected with the signal processor and the gas station management system;
a first end of the network port protector is connected with a network signal input port, and a second end of the network port protector is respectively connected with the signal processor and the gas station management system;
the first end of the video monitoring protector is connected with a video monitoring signal input port, and the second end of the video monitoring protector is respectively connected with the signal processor and the gas station management system;
the first end of the sensor protector is connected with a sensing signal input port, and the second end of the sensor protector is respectively connected with the signal processor and the gas station management system;
the first end of the power supply protector is connected with a power supply signal input port, and the second end of the power supply protector is respectively connected with the signal processor and the gas station management system;
the liquid crystal display screen is connected with the signal processor and used for displaying the oiling machine protector, the network port protector, the video monitoring protector, the sensor protector and the working state of the power protector.
2. The protective monitoring cabinet according to claim 1, wherein the sensor guards include tank level gauge guards, tank leak gauge guards and pipe side leak gauge guards, wherein:
the first end of the oil tank level instrument protector is connected with an oil tank level signal input port, and the second end of the oil tank level instrument protector is respectively connected with the signal processor and the gas station management system;
the first end of the oil tank leakage instrument protector is connected with an oil tank leakage signal input port, and the second end of the oil tank leakage instrument protector is respectively connected with the signal processor and the gas station management system;
pipeline edge leakage appearance protector's first end connecting line edge leakage signal input port, the second end of pipeline edge leakage appearance protector respectively with signal processor with filling station management system connects.
3. The protective monitoring cabinet according to claim 2, wherein the power supply guards include a first power supply guard and a second power supply guard, wherein:
the first end of the first power supply protector is connected with the power supply signal input port;
the second end of the first power protector is respectively connected with the first end of the second power protector, the signal processor and the gas station management system;
and the second end of the second power protector is respectively connected with the signal processor and the gas station management system.
4. The protective monitoring cabinet according to claim 3, wherein the gas station management system comprises a network switch, a video switch, a tank level gauge, a tank leakage gauge, a pipeline side leakage gauge, an AC-to-DC power module and a circuit breaker, wherein:
the second end of the fuel dispenser protector and the second end of the network port protector are respectively connected with the network switch;
the second end of the video monitoring protector is connected with the video switch;
the second end of the oil tank liquid level instrument protector is connected with the oil tank liquid level instrument;
the second end of the oil tank leakage instrument protector is connected with the oil tank leakage instrument;
the second end of the pipeline side leakage instrument protector is connected with the pipeline side leakage instrument;
the second end of the first power supply protector is connected with the circuit breaker;
the second end of the second power supply protector is connected with the first end of the alternating current-to-direct current power supply module;
and the second end of the AC-to-DC power supply module is respectively connected with the signal processor and the liquid crystal display screen.
5. The protective monitoring cabinet of claim 4, wherein the gas station management system further comprises an uninterruptible power supply connected to the circuit breaker.
6. The protective monitoring cabinet according to claim 4, wherein the gas station management system further comprises a power distribution unit connected to the circuit breaker.
7. The protective monitoring cabinet according to claim 2, wherein a grounding bar is arranged in the cabinet body, wherein:
the grounding end of the oiling machine protector, the grounding end of the network port protector, the grounding end of the video monitoring protector, the grounding end of the oil tank level instrument protector, the grounding end of the oil tank leakage instrument protector, the grounding end of the pipeline side leakage instrument protector and the grounding end of the power supply protector are all connected with the first end of the grounding bar;
the second end of the grounding bar is grounded.
8. The protective monitoring cabinet of claim 7, wherein the fuel dispenser guard comprises:
the input end of the grounding bar is connected with the signal input port of the oiling machine, and the grounding end of the grounding bar is connected with the first preceding stage protection circuit of the grounding bar;
the input end of the first pre-stage protection circuit is connected with the output end of the first pre-stage protection circuit, and the grounding end of the first pre-stage protection circuit is connected with the first protection isolation circuit of the grounding bar;
the input end is connected with the output end of the first protection isolation circuit, the grounding end is connected with the grounding bar, and the output end is connected with the signal processor and the first rear-stage protection circuit of the gas station management system.
9. The protective monitoring cabinet according to claim 7, wherein the network port protector comprises:
the input end of the first pre-stage protection circuit is connected with the network signal input port, and the grounding end of the first pre-stage protection circuit is connected with the grounding bar;
the input end of the first pre-stage protection circuit is connected with the output end of the first pre-stage protection circuit, and the ground end of the first pre-stage protection circuit is connected with the ground bar;
the input end is connected with the output end of the second protection isolation circuit, the grounding end is connected with the grounding bar, and the output end is connected with the signal processor and a second rear-stage protection circuit of the gas station management system.
10. The protective monitoring cabinet according to claim 7, wherein the video monitoring protector comprises:
the input end of the first pre-stage protection circuit is connected with the video monitoring signal input port, and the grounding end of the first pre-stage protection circuit is connected with the grounding bar;
the input end of the first pre-stage protection circuit is connected with the output end of the first pre-stage protection circuit, and the ground end of the first pre-stage protection circuit is connected with the ground bar;
the input end is connected with the output end of the third protection isolation circuit, the grounding end is connected with the grounding bar, and the output end is connected with the signal processor and a third rear-stage protection circuit of the gas station management system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222946113.3U CN217957524U (en) | 2022-11-07 | 2022-11-07 | Protection monitoring cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222946113.3U CN217957524U (en) | 2022-11-07 | 2022-11-07 | Protection monitoring cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217957524U true CN217957524U (en) | 2022-12-02 |
Family
ID=84212551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222946113.3U Active CN217957524U (en) | 2022-11-07 | 2022-11-07 | Protection monitoring cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217957524U (en) |
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2022
- 2022-11-07 CN CN202222946113.3U patent/CN217957524U/en active Active
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