CN205941681U - ESD's direct current voltage detecting system in field of gas transmission station - Google Patents

ESD's direct current voltage detecting system in field of gas transmission station Download PDF

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Publication number
CN205941681U
CN205941681U CN201620882102.5U CN201620882102U CN205941681U CN 205941681 U CN205941681 U CN 205941681U CN 201620882102 U CN201620882102 U CN 201620882102U CN 205941681 U CN205941681 U CN 205941681U
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China
Prior art keywords
voltage
module
esd
voltage detecting
host computer
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CN201620882102.5U
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Chinese (zh)
Inventor
毛学彬
胡剑
刘力升
李明
陈雪
罗佳
刘红
陈方超
程兴洁
刘旭兵
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Petrochina Co Ltd
China Petroleum and Natural Gas Co Ltd
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China Petroleum and Natural Gas Co Ltd
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Abstract

The utility model discloses a ESD's direct current voltage detecting system in field of gas transmission station belongs to oil gas warehousing and transportation field. This ESD's direct current voltage detecting system in field of gas transmission station includes: direct current voltage acquisition module, status display module, host system and host computer, this system can gather the DC voltage of the solenoid valve among this ESD through this direct current voltage acquisition module to show this DC voltage in real time through the status display module, when this DC voltage is not in the presupposition voltage within range, can also send alarm signal through the host computer. Therefore, the utility model provides a direct current voltage detecting system can realize real -time detection and demonstration to the DC voltage of solenoid valve among the ESD to have the function of the suggestion of reporting to the police, this testing process need not staff manually operation, has simplified the step that detects, has reduced the potential safety hazard. The utility model is used for ESD's DC voltage in the detection gas transmission station field.

Description

The DC voltage detecting system of ESD in Gas Stations
Technical field
This utility model is related to Oil & Gas Storage field, particularly to a kind of DC voltage detection system of ESD in Gas Stations System.
Background technology
Emergency shut-down control device system (English:Emergency Shutdown Device;Abbreviation ESD) it is that one kind is used for dropping The safety system of low production process risk.In Oil & Gas Storage field, when Gas Stations or the appearance of process equipment block are great During accident, ESD can automatically block upstream and come the natural gas backflowing in gas and downstream, the valve opening simultaneously bypassing main line, put The empty natural gas by protection block, is expanded further with accident prevention, the safety of process equipment and staff in protection yard. DC voltage ruuning situation due to electromagnetic valve in the actuator of ESD will directly influence the control effect to Gas Stations valve Really, it is to judge important indicator that whether ESD normally run it is therefore desirable to periodically be examined to the DC voltage of electromagnetic valve in ESD Survey.
In correlation technique, the detection to the DC voltage of electromagnetic valve in ESD is usually by staff's manual unlocking wiring Box, is tested with circuit tester, and the detection of this DC voltage operation is relatively complicated, and can destroy each electronics in Gas Stations and set Standby explosion-proof environment, has certain potential safety hazard.
Utility model content
During in order to solve in correlation technique, the DC voltage of electromagnetic valve in ESD to be detected, operate relatively complicated asking Topic, this utility model provides a kind of DC voltage detecting system of ESD in Gas Stations.Described technical scheme is as follows:
This utility model provides a kind of DC voltage detecting system of ESD in Gas Stations, described DC voltage detection System includes:DC voltage acquisition module, live display module, main control module and host computer;
Described DC voltage acquisition module is electrically connected with the electromagnetic valve in described ESD, for gathering the electromagnetism in described ESD The DC voltage of valve, and the described DC voltage collecting is sent to described scene display module and described main control module;
Described scene display module is used for showing described DC voltage;
Described main control module is used for sending described DC voltage to described host computer, and when described DC voltage is not at When in predetermined voltage range, send alarm command to described host computer;
Described host computer is used for showing described DC voltage, and according to described alarm command, sends alarm signal.
Optionally, described DC voltage detecting system also includes:Signal conversion module;
Described signal conversion module is electrically connected with described DC voltage acquisition module and described main control module respectively;
Described DC voltage acquisition module, is additionally operable to send the described DC voltage collecting to described signal modulus of conversion Block;
Described signal conversion module, sends after digital signal to described master control mould for being converted to described DC voltage Block.
Optionally, described DC voltage detecting system also includes:Switch;
Described host computer and described main control module pass through described switch and set up communication connection;
Described host computer, is additionally operable to send predetermined voltage range by described switch to described main control module.
Optionally, described DC voltage acquisition module includes two inputs;
Described two inputs are connected with the positive pole of described electromagnetic valve and negative pole respectively.
Optionally, described DC voltage acquisition module includes isolating amplifier circuit and analog to digital conversion circuit;
Described isolating amplifier circuit is used for amplifying the described DC voltage collecting;
Analog-digital conversion circuit as described is used for being converted to the described DC voltage collecting and sends after digital signal to described Live display module.
Optionally, described DC voltage detecting system also includes:Surge Protector;
Described Surge Protector is connected with described DC voltage acquisition module and described signal conversion module respectively, for right Surge in described DC voltage detecting system is shunted.
Optionally, described DC voltage detecting system also includes:Isolator;
Described isolator is connected with described Surge Protector and described signal conversion module respectively, for described unidirectional current Input signal in pressure detecting system, output signal and power supply signal are isolated.
Optionally, described ESD includes at least two power supplies, and described DC voltage detecting system also includes:Switching Switch;
Described switching switch is electrically connected with described at least two power supplies and described electromagnetic valve respectively;
Described switching switch is for controlling the "on" position of the electromagnetic valve in each power supply and described ESD, described logical Electricity condition includes power supply or power-off.
Optionally, described scene display module includes liquid crystal display.
Optionally, described host computer includes display and audible-visual annunciator.
The beneficial effect brought of technical scheme that this utility model provides is:
This utility model provides a kind of DC voltage detecting system of ESD in Gas Stations, this DC voltage detection system System includes:DC voltage acquisition module, live display module, main control module and host computer;This system can pass through this unidirectional current Pressure acquisition module gathers the DC voltage of the electromagnetic valve in this ESD, and shows this DC voltage in real time by live display module; When this DC voltage is not in predetermined voltage range, alarm signal can also be sent by host computer.Therefore, this practicality is new The DC voltage detecting system that type provides is capable of to the real-time detection of the DC voltage of electromagnetic valve and display in ESD, and has There is the function of alarm, this detection process is without staff's manual operation, and the explosion-proof environment of electronic equipment will not be made Become impact, the step that not only simplify detection, also reduce potential safety hazard.
Brief description
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, below will be to required in embodiment description Accompanying drawing to be used be briefly described it should be apparent that, drawings in the following description are only that of the present utility model some are real Apply example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings Obtain other accompanying drawings.
Fig. 1 is the structure of the DC voltage detecting system of ESD in a kind of Gas Stations that this utility model embodiment provides Schematic diagram;
Fig. 2 is the knot of the DC voltage detecting system of ESD in another kind of Gas Stations that this utility model embodiment provides Structure schematic diagram;
Fig. 3 is the knot of the DC voltage detecting system of ESD in another Gas Stations that this utility model embodiment provides Structure schematic diagram;
Fig. 4 is a kind of structural representation of DC voltage acquisition module that this utility model embodiment provides.
Specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, new to this practicality below in conjunction with accompanying drawing Type embodiment is described in further detail.
Fig. 1 is the structure of the DC voltage detecting system of ESD in a kind of Gas Stations that this utility model embodiment provides Schematic diagram, as shown in figure 1, this DC voltage detecting system includes:DC voltage acquisition module 01, live display module 02, master Control module 03 and host computer 04.
This DC voltage acquisition module 01 is electrically connected with the electromagnetic valve (not shown in figure 1) in this ESD, for gathering this The DC voltage of the electromagnetic valve in ESD, and this DC voltage collecting is sent to this live display module 02 and this master control Module 03.
This live display module 02 is used for showing this DC voltage.
This main control module 03 is used for sending this DC voltage to this host computer 04, and when this DC voltage is not at presetting When in voltage range, send alarm command to this host computer 04.
This host computer 04 is used for showing this DC voltage, and according to this alarm command, sends alarm signal.
In sum, the DC voltage detecting system that this utility model provides is capable of the direct current to electromagnetic valve in ESD The real-time detection of voltage and display, and there is the function of alarm, this detection process without staff's manual operation, and not The explosion-proof environment of electronic equipment can be impacted, the step simplifying detection, reduce potential safety hazard.
In this utility model embodiment, this host computer 04 can include display and audible-visual annunciator, and host computer is permissible Show the DC voltage of this electromagnetic valve by this display in real time, and alarm signal can be sent by this audible-visual annunciator. Wherein, this display can be liquid crystal display, and this audible-visual annunciator can be buzzer or light emitting diode etc..
Fig. 2 is the knot of the DC voltage detecting system of ESD in another kind of Gas Stations that this utility model embodiment provides Structure schematic diagram, as shown in Fig. 2 this DC voltage detecting system can also include:Signal conversion module 05.
This signal conversion module 05 is electrically connected with this DC voltage acquisition module 01 and this main control module 03 respectively.
This DC voltage acquisition module 01, is additionally operable to send this DC voltage collecting to this signal conversion module 05, this signal conversion module 05, send after digital signal to this main control module 03 for being converted to this DC voltage.
Optionally, as shown in figure 3, this DC voltage detecting system can also include:Switch 06.
This host computer 04 can be set up by this switch 06 with this main control module 03 communication connection, wherein, this exchange Machine can be industrial switch.
This host computer 04 not only can store the DC voltage of this main control module 03 transmission, can also pass through this switch 06 Send this predetermined voltage range to this main control module 03, that is to say, the staff of Gas Stations can be according to the reality of yard Situation, arranges suitable predetermined voltage range by host computer 04.Additionally, when can also be embedded with real-time in this main control module 03 Each DC voltage that DC voltage acquisition module collects can be carried out one with the time by clock chip, therefore this main control module One is corresponding, and this DC voltage is stored in data base's (memorizer in the memorizer of such as main control module or host computer) In, so that staff can carry out the inquiry of historical data data analysis etc. science and engineering and make.
In actual applications, in ESD in Gas Stations, the nominal operation power supply of electromagnetic valve can be the DC source of 24V, Design principle is fail safe, therefore this electromagnetic valve is excited state under normal circumstances, obtains final product electricity condition, electromagnetic valve is to main line valve Door no control action;Under the conditions of failure condition or ESD system function on, this electromagnetic valve is non-excited state, i.e. power failure state, This solenoid valve control main line valve closing, the DC voltage ruuning situation of therefore this electromagnetic valve will directly influence to Gas Stations The control effect of valve.In this utility model embodiment, because DC voltage detecting system can be with Real-time Collection electromagnetic valve DC voltage, and can be in the live display module of Gas Stations, and the host computer that the station of Gas Stations is controlled in machine room is synchronous Show the DC voltage of electromagnetic valve in this ESD in real time, effectively increase the detection efficiency of the DC voltage to this electromagnetic valve, and Staff can be monitored to this DC voltage by the host computer in station control machine room, and need not arrive the scene of Gas Stations Patrolled and examined, thus reducing the workload of staff.
Fig. 4 is a kind of DC voltage acquisition module provided in an embodiment of the present invention and the circuit diagram of live display module, such as Shown in Fig. 4, this DC voltage acquisition module 01 includes at least two inputs 11 and 12, and this two input 11 and 12 can divide It is not connected with the positive pole of the electromagnetic valve in this ESD and negative pole, to gather DC voltage during this electromagnetic valve work.This unidirectional current Pressure acquisition module 01 can also connect power supply by 13 and 14 two inputs, to provide for this DC voltage acquisition module 01 Electric energy.
In actual applications, this DC voltage acquisition module 01 can collect 0 to 24 by 11 and 12 two inputs The analogue signal of the DC voltage of volt (V), and the analogue signal of this DC voltage can be converted into 4 to 20 milliamperes (mA) Send to signal conversion module after normalized current value signal.Wherein, DC source acquisition module gathers the concrete work of DC voltage May be referred to correlation technique as principle, this utility model embodiment does not repeat to this.
With reference to Fig. 4, this DC voltage acquisition module 01 can include isolating amplifier circuit 1a and analog to digital conversion circuit.Should be every From amplifying circuit 1a for amplifying the DC voltage that this collects;This analog to digital conversion circuit is used for this DC voltage collecting Send after being converted to digital signal to this live display module 02.Wherein, this analog to digital conversion circuit may be located at the output in Fig. 4 It is also possible to be located at the micro-control unit (English of this DC voltage acquisition module 01 in circuit 1b:Micro-controller Unit;Referred to as:MCU) in 1c.
It can also be seen that this live display module 02 can include liquid crystal display 2a from Fig. 4, this liquid crystal display 2a For showing the DC voltage that this DC voltage acquisition module 01 collects.Further, as shown in figure 4, this scene shows mould Block 02 can also include light emitting diode 2b, and this light emitting diode 2b can be by the light cue staff's electromagnetic valve sending DC voltage occur abnormal, that is, this live display module 02 can also have the function of alarm.Specifically, this unidirectional current Can being stored with MCU in source acquisition module 01, (for example, main control module can be by this predetermined voltage range for predetermined voltage range Send to this DC voltage acquisition module), the DC voltage that DC source acquisition module 01 can be collected by this MCU judgement Whether in this predetermined voltage range, when this DC voltage is not in predetermined voltage range, this MCU can control this to light Diode 2b lights, thus reaching the abnormal effect of prompting field personnel's electromagnetic valve work.
Optionally, as shown in figure 3, this DC voltage detecting system can also include:Surge Protector 07 and isolator 08.
This Surge Protector 07 can be analog quantity Surge Protector, this analog quantity Surge Protector 07 respectively with this direct current Voltage acquisition module (not shown in figure 1) and this signal conversion module 05 connect (for example, by isolator 08 and the conversion of this signal Module 05 connects), for shunting to the surge in this DC voltage detecting system.This isolator 08 is protected with this surge respectively Shield device 07 and this signal conversion module 05 connect, for the input signal in this DC voltage detecting system, output signal and Power supply signal is isolated.
Additionally, as shown in figure 3, also including uninterrupted power source (English in this DC voltage detecting system: Uninterruptable Power Supply;Referred to as:UPS) turn DC Module with exchanging, this UPS can be this DC voltage Element in detecting system provides stable, continual supply of electric power it is ensured that the stability of this DC voltage detecting system.
Optionally, as shown in Fig. 2 this ESD includes at least two power supplies 10, this DC voltage detecting system is also wrapped Include:Switching switch 09.
This switching switch 09 is electrically connected with this at least two power supply 10 and this electromagnetic valve respectively, this switching switch 09 use In the "on" position of the electromagnetic valve controlling in each power supply and this ESD, this "on" position includes power supply or power-off.Example As so that power supply 1 is this solenoid valve, when this power supply 1 not enough power supply or when breaking down, cut Changing power supply 2 is this solenoid valve, thus ensure that stability during this electromagnetic valve work.
In this utility model embodiment, with reference to Fig. 2, this DC voltage detecting system can be built in Gas Stations Central Plains Some data acquisitions control (English with monitoring:Supervisory Control And Data Acquisition;Referred to as: SCADA) in system, the number in this SCADA system in this DC voltage detecting system, between modules, can directly be adopted Carry out data transmission according to link.
This utility model provides a kind of DC voltage detecting system of ESD in Gas Stations, DC voltage acquisition module, Live display module, main control module and host computer;This system can gather the electricity in this ESD by this DC voltage acquisition module The DC voltage of magnet valve, and this DC voltage is shown in real time by live display module;When this DC voltage is not at default electricity When in the range of pressure, alarm signal can also be sent by host computer.Therefore, the DC voltage detecting system that this utility model provides It is capable of to the real-time detection of the DC voltage of electromagnetic valve and display in ESD, and there is the function of alarm, this detected Cheng Wuxu staff's manual operation, and the explosion-proof environment of electronic equipment will not be impacted, not only simplify the step of detection And reduce potential safety hazard suddenly,.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all in this practicality Within new spirit and principle, any modification, equivalent substitution and improvement made etc., should be included in guarantor of the present utility model Within the scope of shield.

Claims (10)

1. in a kind of Gas Stations the DC voltage detecting system of emergency shut-down control device system ESD it is characterised in that described direct current Voltage detecting system includes:
DC voltage acquisition module, live display module, main control module and host computer;
Described DC voltage acquisition module is electrically connected with the electromagnetic valve in described ESD, for gathering electromagnetic valve in described ESD DC voltage, and the described DC voltage collecting is sent to described scene display module and described main control module;
Described scene display module is used for showing described DC voltage;
Described main control module is used for sending described DC voltage to described host computer, and when described DC voltage is not at presetting When in voltage range, send alarm command to described host computer;
Described host computer is used for showing described DC voltage, and according to described alarm command, sends alarm signal.
2. DC voltage detecting system according to claim 1 is it is characterised in that described DC voltage detecting system is also wrapped Include:Signal conversion module;
Described signal conversion module is electrically connected with described DC voltage acquisition module and described main control module respectively;
Described DC voltage acquisition module, is additionally operable to send the described DC voltage collecting to described signal conversion module;
Described signal conversion module, sends after digital signal to described main control module for being converted to described DC voltage.
3. DC voltage detecting system according to claim 1 is it is characterised in that described DC voltage detecting system is also wrapped Include:Switch;
Described host computer and described main control module pass through described switch and set up communication connection;
Described host computer, is additionally operable to send predetermined voltage range by described switch to described main control module.
4. DC voltage detecting system according to claim 1 it is characterised in that
Described DC voltage acquisition module includes two inputs;
Described two inputs are connected with the positive pole of described electromagnetic valve and negative pole respectively.
5. DC voltage detecting system according to claim 1 is it is characterised in that described DC voltage acquisition module bag Include:Isolating amplifier circuit and analog to digital conversion circuit;
Described isolating amplifier circuit is used for amplifying the described DC voltage collecting;
Analog-digital conversion circuit as described is used for being converted to the described DC voltage collecting sending after digital signal to described scene Display module.
6. DC voltage detecting system according to claim 2 is it is characterised in that described DC voltage detecting system is also wrapped Include:Surge Protector;
Described Surge Protector is connected with described DC voltage acquisition module and described signal conversion module respectively, for described Surge in DC voltage detecting system is shunted.
7. DC voltage detecting system according to claim 6 is it is characterised in that described DC voltage detecting system is also wrapped Include:Isolator;
Described isolator is connected with described Surge Protector and described signal conversion module respectively, for examining to described DC voltage Input signal in examining system, output signal and power supply signal are isolated.
8. according to the arbitrary described DC voltage detecting system of claim 1 to 7 it is characterised in that described ESD is included at least Two power supplies, described DC voltage detecting system also includes:Switching switch;
Described switching switch is electrically connected with the electromagnetic valve in described at least two power supplies and described ESD respectively;
Described switching switch is for controlling the "on" position of the electromagnetic valve in each power supply and described ESD, described energising shape State includes power supply or power-off.
9. according to the arbitrary described DC voltage detecting system of claim 1 to 7 it is characterised in that
Described scene display module includes liquid crystal display.
10. according to the arbitrary described DC voltage detecting system of claim 1 to 7 it is characterised in that
Described host computer includes display and audible-visual annunciator.
CN201620882102.5U 2016-08-15 2016-08-15 ESD's direct current voltage detecting system in field of gas transmission station Active CN205941681U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110504740A (en) * 2018-05-17 2019-11-26 中国石油天然气股份有限公司 A kind of power supply device of Gas Stations emergency stop (apparatus) system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110504740A (en) * 2018-05-17 2019-11-26 中国石油天然气股份有限公司 A kind of power supply device of Gas Stations emergency stop (apparatus) system

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