CN110805828A - Gas intelligent replenishing device of gas mixing switch - Google Patents

Gas intelligent replenishing device of gas mixing switch Download PDF

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Publication number
CN110805828A
CN110805828A CN201911161474.3A CN201911161474A CN110805828A CN 110805828 A CN110805828 A CN 110805828A CN 201911161474 A CN201911161474 A CN 201911161474A CN 110805828 A CN110805828 A CN 110805828A
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CN
China
Prior art keywords
gas
pressure sensor
pressure
unit
data processing
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Pending
Application number
CN201911161474.3A
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Chinese (zh)
Inventor
钱念书
刘新宇
陈臻
赵建平
康宁
卡里哈尔·安尼万别克
刘琪
项东
陈进
邢占礼
柯振宇
杨胜林
胡钢
刘占钧
于文海
王学民
杨春梅
巴可热木·艾克拜尔
雷晨浩
李强
袁文海
刘彪
刘鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Urumqi Power Supply Co Of Xinjiang Power Co Ltd
State Grid Corp of China SGCC
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Urumqi Power Supply Co Of Xinjiang Power Co Ltd
State Grid Corp of China SGCC
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Application filed by Urumqi Power Supply Co Of Xinjiang Power Co Ltd, State Grid Corp of China SGCC filed Critical Urumqi Power Supply Co Of Xinjiang Power Co Ltd
Priority to CN201911161474.3A priority Critical patent/CN110805828A/en
Publication of CN110805828A publication Critical patent/CN110805828A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/028—Special adaptations of indicating, measuring, or monitoring equipment having the volume as the parameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F17C13/045—Automatic change-over switching assembly for bottled gas systems with two (or more) gas containers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0123—Mounting arrangements characterised by number of vessels
    • F17C2205/013—Two or more vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0326—Valves electrically actuated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/031—Air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/035—High pressure (>10 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
    • F17C2225/035—High pressure, i.e. between 10 and 80 bars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/04—Methods for emptying or filling
    • F17C2227/041—Methods for emptying or filling vessel by vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/04—Methods for emptying or filling
    • F17C2227/043—Methods for emptying or filling by pressure cascade
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/03—Control means
    • F17C2250/036—Control means using alarms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0426—Volume
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0626—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/07—Actions triggered by measured parameters
    • F17C2250/072—Action when predefined value is reached
    • F17C2250/075—Action when predefined value is reached when full
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/02—Mixing fluids
    • F17C2265/025—Mixing fluids different fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/05—Applications for industrial use

Abstract

The invention discloses an intelligent gas supplementing device for a gas mixing switch, which can realize the gas supplementing work of gas mixing switch equipment, ensure the gas supplementing proportion and the gas supplementing amount of mixed gas and finish the accurate and intelligent gas supplementing work. The invention comprises an inflation pipeline which is used for connecting with a gas mixing switch; an inflation valve and a data processing unit for calculating the air mixing amount are sequentially arranged on the inflation pipeline; the data processing unit is simultaneously connected with a sulfur hexafluoride gas cylinder and a carbon tetrafluoride gas cylinder through gas supply pipelines; the gas supply pipelines are provided with a pressure reducing valve and an electromagnetic valve; the device also comprises a pressure sensor unit, wherein two ends of the pressure sensor unit are communicated with the gas charging pipeline and the gas circuit of the data processing unit through monitoring pipelines; a contactor unit is integrated in the pressure sensor unit; the power supply module supplies power to the contactor unit, the pressure sensor unit and the electromagnetic valve; and an air switch is arranged on a power supply circuit of the power supply module.

Description

Gas intelligent replenishing device of gas mixing switch
Technical Field
The invention relates to a gas supplementing device, which is particularly used for accurately and intelligently supplementing gas to mixed gas switch equipment. The invention is not only suitable for high-voltage electrical equipment such as circuit breakers, GIS, gas-filled cables, gas-filled power transmission pipelines and the like which adopt mixed gas, but also suitable for the existing SF6 gas-filled equipment, and realizes accurate and intelligent gas-filled operation.
Background
Due to SF6The gas has good insulation and arc extinguishing performance, and is widely applied to high-voltage electrical equipment such as circuit breakers, GIS, gas-filled cables, gas-filled power transmission pipelines and the like. But SF under a certain pressure at a lower ambient temperature6The gas liquefies, the pressure or density decreases, and its insulating and arc-extinguishing properties decrease. To solve the above problems, the best method adopted at present is to use SF6The gas is mixed with CF with a certain proportion4Or N2A gas.
At present, the gas mixing switch equipment is more and more widely used, when newly installed gas mixing switch equipment is inflated or gas mixing equipment which does not reach rated pressure needs to be supplemented with gas, the traditional gas supplementing method is that SF is calculated according to the rated pressure value, the gas mixing proportion and the actual pressure value of the equipment6The corresponding gas supplementing pressure of the gas is firstly supplemented with SF6The gas reaches the air supply pressure value and then is replenished with CF4(or N)2) Until the pressure reaches the rated pressure value. The method requires tonifying qiThe personnel constantly observe the pressure indicator to the switch of manual control gas cylinder valve is difficult to realize accurate tonifying qi, influences tonifying qi work efficiency and thoughtlessly gas proportion, influences switchgear arc extinguishing and insulating properties when serious, reduces equipment safety and stability performance.
Disclosure of Invention
The invention aims to solve the technical problem of providing an intelligent gas supplementing device for a gas mixing switch, which can realize the gas supplementing work of gas mixing switch equipment, ensure the gas supplementing proportion and the gas supplementing quantity of mixed gas and complete the accurate and intelligent gas supplementing work aiming at the defects in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
the gas mixing switch gas intelligent replenishing device comprises a gas charging pipeline connected with the gas mixing switch; an inflation valve and a data processing unit for calculating the air mixing amount are sequentially arranged on the inflation pipeline; the data processing unit is simultaneously connected with a sulfur hexafluoride gas cylinder and a carbon tetrafluoride gas cylinder through gas supply pipelines; the gas supply pipelines are provided with a pressure reducing valve and an electromagnetic valve;
the device also comprises a pressure sensor unit, wherein two ends of the pressure sensor unit are communicated with the gas charging pipeline and the gas circuit of the data processing unit through monitoring pipelines;
a contactor unit is integrated in the pressure sensor unit;
the power supply module supplies power to the contactor unit, the pressure sensor unit and the electromagnetic valve; and an air switch is arranged on a power supply circuit of the power supply module.
As a preferred embodiment of the present invention: the power supply module provides a direct current power supply with small ripple factor, small harmonic wave and stable output; the data processing unit calculates the air supplement pressure value of each gas according to the input rated pressure value, the air mixing proportion and the equipment pressure value; the pressure sensor unit monitors the mixed gas pressure in the equipment, and sends a signal when the pressure reaches the pressure value output by the data processing unit, and the range of the pressure sensor unit is larger than the mixed pressure; the contactor unit obtains signals from the pressure sensor unit, controls and connects the electromagnetic valve and the photoacoustic alarmA machine; the electromagnetic valve is controlled by the contactor to respectively conduct or close SF6+CF4Or SF6+N2An air supply line of the air bottle.
As a preferred embodiment of the present invention: the power module adopts an HB-240305 rechargeable battery with the weight of 2.25KG and the rated capacity of 3.5 AH; the data processing unit adopts a JSK-211 data processor with the sampling precision of 99.7%, the sampling frequency of 1500 times/s and the response time of 60 ms; the pressure sensor unit adopts a CYYZ11 pressure sensor with the pressure range of-100 kPa to 100MPa and the accuracy grade of 0.1 percent FS; the contactor unit adopts CJX2-1210 contactors with the service life of 1000 ten thousand times and the operation frequency of 1200 times/hour; the electromagnetic valve adopts a 4V210-06 electromagnetic valve with the highest action frequency of 5 times/second and five ports and two positions.
As a preferred embodiment of the present invention: the pressure sensor for monitoring the pressure of the switch gas is connected with the contactor unit and the data processing unit, and is connected with an electromagnetic valve for controlling the conduction or the closing of the gas supply pipeline behind the contactor unit; the carbon tetrafluoride gas bottle is used for storing carbon tetrafluoride gas or nitrogen.
The invention has the beneficial effects that:
the gas mixing switch gas intelligent gas supplementing device disclosed by the invention can realize automatic conversion of gas supplementing quantity, simultaneously complete intelligent gas supplementing to a set pressure value, and accurately master SF6And CF4(or N)2) The air supplement proportion and the air supplement amount improve the air supplement efficiency and the safety and the stability of the switch equipment. When the gas mixing switch equipment needs to be supplemented with gas, the SF is added6Gas cylinder and CF4(or N)2) The gas cylinders are respectively connected to a gas input port of the gas mixing switch gas intelligent supplement device, and an output port of the device is connected with the switch equipment; the 'control power supply' button of the device is pressed, the rated pressure of the switch device and the inflation proportion of the mixed gas are input into the device, the gas cylinder valve is opened, intelligent gas charging of the mixed gas switch can be achieved, when the pressure reaches a set value, a gas charging completion signal is sent, a worker is reminded to timely remove a connecting pipeline of the device, and finally automatic and accurate gas charging operation is achieved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic block diagram of the structure of an embodiment of the present invention.
Description of reference numerals:
the device comprises a gas mixing switch 1, an inflation valve 2, a control valve 3, a contactor unit 4, a pressure sensor unit 5, a data processing unit 6, an electromagnetic valve 7, an electromagnetic valve 8, a pressure reducing valve 9, an air switch 10, a power supply module 11, a sulfur hexafluoride gas supplementing bottle 12 and a carbon tetrafluoride gas supplementing bottle 13.
Detailed Description
The following description of the embodiments of the present invention refers to the accompanying drawings and examples:
as shown in fig. 1 and 2, which illustrate an embodiment of the present invention, the gas mixing switch gas intelligent charging device comprises a charging pipeline for connecting with the gas mixing switch; the inflation pipeline is sequentially provided with an inflation valve 2 and a data processing unit 6 for calculating the air mixing amount; the data processing unit 6 is simultaneously connected with a sulfur hexafluoride gas cylinder 12 and a carbon tetrafluoride gas cylinder 13 through gas supply pipelines; the gas supply pipelines are provided with a pressure reducing valve 9 and electromagnetic valves (7 and 8);
the device also comprises a pressure sensor unit 5, wherein two ends of the pressure sensor unit are communicated with the gas charging pipeline and the gas circuit of the data processing unit 6 through monitoring pipelines;
a contactor unit 4 is integrated in the pressure sensor unit 5;
the device also comprises a power supply module 11 for supplying power to the contactor unit 4, the pressure sensor unit 5 and the electromagnetic valves (7, 8); and an air switch 10 is arranged on a power supply circuit of the power supply module 11.
As shown in fig. 1 and 2, preferably, as shown: the power module 11 provides a direct current power supply with small ripple factor, small harmonic wave and stable output; the data processing unit 6 calculates the air supplement pressure value of each gas according to the input rated pressure value, the air mixing proportion and the equipment pressure value; the pressure sensor unit 5 monitors the mixed gas pressure in the equipment, and sends out a signal when the pressure reaches the pressure value output by the data processing unit, and the range of the pressure sensor unit is within the rangeThe circumference is greater than the mixing pressure; the contactor unit 4 acquires signals from the pressure sensor unit and controls and connects the electromagnetic valve and the photoacoustic alarm; the electromagnetic valve 7 is controlled by a contactor to respectively conduct or close SF6+CF4Or SF6+N2An air supply line of the air bottle. Preferably, as shown in the figure: the power module 11 adopts an HB-240305 rechargeable battery with the weight of 2.25KG and the rated capacity of 3.5 AH; the data processing unit adopts a JSK-211 data processor with the sampling precision of 99.7%, the sampling frequency of 1500 times/s and the response time of 60 ms; the pressure sensor unit adopts a CYYZ11 pressure sensor with the pressure range of-100 kPa to 100MPa and the accuracy grade of 0.1 percent FS; the contactor unit adopts CJX2-1210 contactors with the service life of 1000 ten thousand times and the operation frequency of 1200 times/hour; the electromagnetic valve adopts a 4V210-06 electromagnetic valve with the highest action frequency of 5 times/second and five ports and two positions. Preferably, as shown in the figure: the pressure sensor for monitoring the pressure of the switch gas is connected with the contactor unit and the data processing unit, and is connected with an electromagnetic valve for controlling the conduction or the closing of the gas supply pipeline behind the contactor unit; the carbon tetrafluoride gas bottle is used for storing carbon tetrafluoride gas or nitrogen.
In summary, as shown in the figure, the gas mixing switch gas intelligent supplement device disclosed by the invention can automatically convert the gas supplement amount and simultaneously complete intelligent gas supplement to the set pressure value, and accurately grasp the SF6And CF4(or N)2) The air supplement proportion and the air supplement amount improve the air supplement efficiency and the safety and the stability of the switch equipment.
The invention mainly comprises a power supply module, a data processing unit, a pressure sensor unit, a contactor unit, an electromagnetic valve and the like. The power module mainly provides a direct current power supply with small ripple factor, small harmonic wave and stable output for each unit, provides guarantee for the stable operation of each unit, is convenient to carry, has low requirement on the operation environment, is more suitable for field application, and finally uses the HB-240305 rechargeable battery with the weight of 2.25KG and the rated capacity of 3.5 AH. The data processing unit calculates the air supply pressure value of each gas according to the input rated pressure value, the mixed gas (SF6+ CF4 or SF6+ N2) proportion and the actual pressure value of the equipment, and finally selects the gas supply pressure value to ensure accurate data acquisition and rapid processingA JSK-211 data processor with a sampling precision of 99.7%, a sampling frequency of 1500 times/s and a response time of 60ms is selected. The pressure sensor unit monitors the gas mixing pressure in the equipment, when the pressure reaches the pressure value output by the data processing unit, a signal is sent, a sensor with a measuring range larger than the mixing pressure and a larger working temperature range is selected, and finally a CYYZ11 pressure sensor with a pressure measuring range of-100 kPa-100 MPa and a precision grade of 0.1% FS is selected. The contactor unit acquires signals from the pressure sensor unit so as to control the electromagnetic valve and the photoacoustic alarm, and finally, the CJX2-1210 contactor with the service life of 1000 ten thousand times and the operation frequency of 1200 times/hour is selected to ensure long-time reliable use. The electromagnetic valve is controlled by the contactor to respectively conduct or close SF6And CF4(or N)2) The gas charging pipeline of the gas cylinder finally selects a 4V210-06 electromagnetic valve with the highest action frequency of 5 times/second and five ports and two positions in order to meet the requirements of reliable action, strong corrosion resistance and large working temperature range.
When the gas mixing switch device is used specifically, when gas is required to be supplemented by gas mixing switch equipment, an SF6 gas cylinder and a CF4 (or N2) gas cylinder are respectively connected to a gas input port of the gas mixing switch intelligent gas supplementing device, and an output port of the device is connected with the switch equipment; the 'control power supply' button of the device is pressed, the rated pressure of the switch device and the inflation proportion of the mixed gas are input into the device, the gas cylinder valve is opened, intelligent gas charging of the mixed gas switch can be achieved, when the pressure reaches a set value, a gas charging completion signal is sent, a worker is reminded to timely remove a connecting pipeline of the device, and finally automatic and accurate gas charging operation is achieved.
In summary, the gas mixing switch gas intelligent supplement device comprises a power module, a data processing unit, a pressure sensor unit, a contactor unit and an electromagnetic valve. The pressure sensor is used for monitoring the gas pressure of the switch, the pressure sensor is connected with the contactor and the data processing unit, the electromagnetic valve used for controlling the conduction or the closing of the gas supplementing pipeline is connected behind the contactor unit, and the data processing unit, the contactor and the pressure sensor are all connected with the power supply module. Due to the adoption of the technical scheme, the gas supplementing work of the gas mixing switch equipment can be realized, and the gas supplementing effect can be ensuredThe air supplement proportion and the air supplement amount of the mixed gas send out an air supplement work completion signal when the pressure reaches a set value, and a worker is reminded of timely removing a connecting pipeline of the device, so that accurate and intelligent air supplement work is finally completed. Specifically, as shown in fig. 1, the pressure sensor is used for monitoring the pressure of the switching gas, the pressure sensor is connected with the contactor and the data processing unit, the electromagnetic valve used for controlling the conduction or the closing of the gas supply pipeline is connected behind the contactor unit, and the data processing unit, the contactor and the pressure sensor are all connected with the power supply module. The pressure sensor monitors the mixed gas pressure in the equipment, and sends a signal when the pressure reaches the pressure value output by the data processing unit. The data processing is based on the input rated pressure value and mixed gas (SF)6+CF4Or SF6+N2) And calculating the air supply pressure value of each gas by the proportion and the actual pressure value of the equipment so as to be received by the pressure sensor. The contactor acquires a signal from the pressure sensor unit to control the solenoid valve and the photoacoustic alarm. The electromagnetic valve is controlled by a contactor and is respectively communicated or closed with SF6And CF4(or N)2) And an inflation pipeline of the gas cylinder. The power module provides a direct current power supply with small ripple factor, small harmonic wave and stable output for each unit, and guarantees stable operation of each unit.
While the preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention is not limited to the above embodiments, and various changes, which relate to the related art known to those skilled in the art and fall within the scope of the present invention, can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, but only by the scope of the appended claims.

Claims (4)

1. Mix gaseous intelligence of gas switch and fill supplementary device, its characterized in that: comprises an inflation pipeline used for being connected with a gas mixing switch; an inflation valve and a data processing unit for calculating the air mixing amount are sequentially arranged on the inflation pipeline; the data processing unit is simultaneously connected with a sulfur hexafluoride gas cylinder and a carbon tetrafluoride gas cylinder through gas supply pipelines; the gas supply pipelines are provided with a pressure reducing valve and an electromagnetic valve;
the device also comprises a pressure sensor unit, wherein two ends of the pressure sensor unit are communicated with the gas charging pipeline and the gas circuit of the data processing unit through monitoring pipelines;
a contactor unit is integrated in the pressure sensor unit;
the power supply module supplies power to the contactor unit, the pressure sensor unit and the electromagnetic valve; and an air switch is arranged on a power supply circuit of the power supply module.
2. The gas mixing switch gas intelligent replenishing device according to claim 1, characterized in that: the power supply module provides a direct current power supply with small ripple factor, small harmonic wave and stable output; the data processing unit calculates the air supplement pressure value of each gas according to the input rated pressure value, the air mixing proportion and the equipment pressure value; the pressure sensor unit monitors the mixed gas pressure in the equipment, and sends a signal when the pressure reaches the pressure value output by the data processing unit, and the range of the pressure sensor unit is larger than the mixed pressure; the contactor unit acquires signals from the pressure sensor unit and controls and connects the electromagnetic valve and the photoacoustic alarm; the electromagnetic valve is controlled by the contactor to respectively conduct or close SF6+CF4Or SF6+N2An air supply line of the air bottle.
3. The gas mixing switch gas intelligent replenishing device according to claim 2, characterized in that: the power module adopts an HB-240305 rechargeable battery with the weight of 2.25KG and the rated capacity of 3.5 AH; the data processing unit adopts a JSK-211 data processor with the sampling precision of 99.7%, the sampling frequency of 1500 times/s and the response time of 60 ms; the pressure sensor unit adopts a CYYZ11 pressure sensor with the pressure range of-100 kPa to 100MPa and the accuracy grade of 0.1 percent FS; the contactor unit adopts CJX2-1210 contactors with the service life of 1000 ten thousand times and the operation frequency of 1200 times/hour; the electromagnetic valve adopts a 4V210-06 electromagnetic valve with the highest action frequency of 5 times/second and five ports and two positions.
4. The gas mixing switch gas intelligent replenishing device according to claim 1, characterized in that: the pressure sensor for monitoring the pressure of the switch gas is connected with the contactor unit and the data processing unit, and is connected with an electromagnetic valve for controlling the conduction or the closing of the gas supply pipeline behind the contactor unit; the carbon tetrafluoride gas bottle is used for storing carbon tetrafluoride gas or nitrogen.
CN201911161474.3A 2019-11-25 2019-11-25 Gas intelligent replenishing device of gas mixing switch Pending CN110805828A (en)

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CN204756426U (en) * 2015-06-16 2015-11-11 常州集贤科技有限公司 Full -automatic type SF6 electrical equipment aerating device
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