CN111337628A - Electrified detecting and purifying system for insulating gas - Google Patents
Electrified detecting and purifying system for insulating gas Download PDFInfo
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- CN111337628A CN111337628A CN202010252952.8A CN202010252952A CN111337628A CN 111337628 A CN111337628 A CN 111337628A CN 202010252952 A CN202010252952 A CN 202010252952A CN 111337628 A CN111337628 A CN 111337628A
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- 238000001514 detection method Methods 0.000 claims abstract description 83
- 238000000746 purification Methods 0.000 claims abstract description 53
- 238000001914 filtration Methods 0.000 claims abstract description 44
- 239000007789 gas Substances 0.000 claims description 417
- 239000012535 impurity Substances 0.000 claims description 25
- 239000012528 membrane Substances 0.000 claims description 13
- 238000000108 ultra-filtration Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 7
- 239000003463 adsorbent Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 239000002808 molecular sieve Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 3
- 238000011282 treatment Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 6
- 239000008280 blood Substances 0.000 description 5
- 210000004369 blood Anatomy 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 5
- 229910018503 SF6 Inorganic materials 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000008713 feedback mechanism Effects 0.000 description 1
- 230000013632 homeostatic process Effects 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000012959 renal replacement therapy Methods 0.000 description 1
- 238000004092 self-diagnosis Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
- B01D46/543—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using membranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D53/228—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion characterised by specific membranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/104—Alumina
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
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Abstract
The electrified detection and purification system for the insulating gas can complete the purification work of the insulating gas through the gas detection device, the gas filtering device and the first one-way valve, and has the characteristic of simple structure. In addition, the electrified detection and purification system for the insulating gas detects the gas index of the insulating gas output from the electrical equipment and/or the gas filtering device by adopting the gas detection device, and compares the detected gas index with the gas index threshold value to obtain a comparison result; if the comparison result shows that the gas index is larger than the gas index threshold value, a first gas output port of the gas detection device is opened to convey the insulating gas to a gas filtering device for filtering; if the comparison result shows that the gas index is less than or equal to the gas index threshold value, a second gas output port of the gas detection device is opened to convey the insulating gas back to the electrical equipment so as to circularly purify the insulating gas in the electrical equipment, and further improve the purification efficiency of the insulating gas.
Description
Technical Field
The invention relates to the field of gas purification equipment, in particular to an electrified detection and purification system for insulating gas.
Background
The insulating gas becomes an irreplaceable insulating medium in electrical equipment due to the excellent insulating arc extinguishing performance of the insulating gas, and is widely applied to power transmission and transformation systems and urban power supply. When the insulating gas insulation apparatus is normally operated, impurities such as moisture and solid particles are inevitably introduced, and partial decomposition products may be generated. When the equipment is seriously failed, a large amount of decomposition products are generated, and the equipment needs to be disassembled for maintenance. However, some equipment may only contain excessive moisture or trace impurities, and the equipment needs to be powered off, and the insulation gas is purified and then recharged into the equipment for use, so that the power supply reliability of a power grid is greatly influenced.
Therefore, it is an urgent technical problem in the art to provide a charged detection and purification system for insulating gas, which has a simple structure, does not require power failure of equipment, can perform on-site online detection/charged treatment, has excellent gas purification capability, and can improve the purification efficiency of insulating gas.
Disclosure of Invention
The invention aims to provide an insulating gas electrified detection and purification system which has a simple structure, does not need equipment power failure, can carry out on-site online detection/electrified treatment, has excellent gas purification capacity and can improve the purification efficiency of insulating gas.
In order to achieve the purpose, the invention provides the following scheme:
an electrified detection and purification system for insulating gas, comprising: the gas detection device, the gas filtering device and the first one-way valve;
a first gas input port of the gas detection device is connected with a gas output port pipeline of the electrical equipment; a first gas output port of the gas detection device is connected with a gas input port of the gas filtering device through a pipeline; the gas output port of the gas filtering device is connected with the second gas input port of the gas detection device through a pipeline; a second gas output port of the gas detection device is connected with a gas input port of the first one-way valve through a pipeline; the gas output port of the first one-way valve is connected with the gas input port of the electrical equipment through a pipeline;
the gas detection device is used for detecting a gas index of the insulating gas output from the electrical equipment and/or the gas filtering device, and comparing the detected gas index with a gas index threshold value to obtain a comparison result; if the comparison result is that the gas index is larger than the gas index threshold value, a first gas output port of the gas detection device is opened; if the comparison result shows that the gas index is smaller than or equal to the gas index threshold value, a second gas output port of the gas detection device is opened;
the gas filtering device is used for filtering the insulating gas.
Optionally, the gas filtering device comprises: an impurity trap and an ultrafiltration membrane;
one end face of the ultrafiltration membrane is attached to the gas output of the gas filtering device; the other end face of the ultrafiltration membrane is attached to one end face of the impurity trap; and the other end face of the impurity trap is attached to a gas input port of the gas filtering device.
Optionally, the impurity trap comprises a gas adsorbing material and a molecular sieve; the gas adsorbent material includes: alumina, silica gel, and/or an adsorbent.
Optionally, the system for detecting and purifying the charged insulating gas further comprises: a gas flow meter;
the first gas input port of the gas flowmeter is connected with a gas output port pipeline of the electrical equipment; a first gas output port of the gas flowmeter is connected with a first gas input port of the gas detection device through a pipeline; a second gas input port of the gas flowmeter is connected with a gas output port pipeline of the first one-way valve; and the second gas output port of the gas flowmeter is connected with the gas input port of the electrical equipment.
Optionally, the system for detecting and purifying the charged insulating gas further comprises: a second one-way valve and a booster pump;
the gas input port of the second one-way valve is connected with the gas output port of the first one-way valve through a pipeline; a gas output port of the second one-way valve is connected with a gas input port of the booster pump through a pipeline; and the gas output port of the booster pump is connected with the second gas input port of the gas flowmeter.
Optionally, the system for detecting and purifying the charged insulating gas further comprises: a gas storage device;
a gas inlet of the gas storage device is connected with a gas outlet pipeline of the first one-way valve; and a gas output port of the gas storage device is connected with a gas input port of the second one-way valve through a pipeline.
Optionally, the gas storage device comprises: the gas storage cylinder, the electric push rod and the motor;
a gas inlet of the gas storage cylinder is connected with a gas outlet pipeline of the first one-way valve; a gas output port of the gas storage cylinder is connected with a gas input port of the second one-way valve through a pipeline;
the electric push rod is matched with the gas storage cylinder; the electric push rod is electrically connected with the motor; the motor is used for driving the electric push rod to reciprocate in the gas storage cylinder; the electric push rod is used for pushing the insulating gas in the gas storage cylinder to be discharged along a gas outlet of the gas storage cylinder.
Optionally, the gas detection device includes: a gas detector, a comparator and a switch controller;
the gas detector is electrically connected with the comparator; the comparator is connected with the switch controller;
the gas detector is used for detecting indexes of each gas in the insulating gas; the comparator is used for comparing the indexes of the gases with a set gas index threshold value to obtain a comparison result; and the switch controller is used for opening or closing a gas output port of the gas detection device according to the comparison result.
Optionally, the system for detecting and purifying the charged insulating gas further comprises: a power supply device;
the power supply device is used for providing electric energy for the insulating gas electrified detection and purification system;
the power supply device is a solar power supply device or a commercial power supply device.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the electrified detection and purification system for the insulating gas, provided by the invention, can complete the purification work of the insulating gas only through the gas detection device, the gas filtering device and the first one-way valve, and has the characteristic of simple structure. The electrified detection and purification system for the insulating gas detects the gas index of the insulating gas output from the electrical equipment and/or the gas filtering device by adopting the gas detection device, and compares the detected gas index with the gas index threshold value to obtain a comparison result; if the comparison result shows that the gas index is larger than the gas index threshold value, a first gas output port of the gas detection device is opened to convey the insulating gas to a gas filtering device for filtering; if the comparison result is that the gas index is less than or equal to the gas index threshold value, a second gas output port of the gas detection device is opened to convey the insulating gas back to the electrical equipment, so that the insulating gas in the electrical equipment can be circularly purified, and the purifying efficiency of the insulating gas is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of an electrified detecting and purifying system for insulating gas according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a gas filtering device in an electrified detecting and purifying system for insulating gas according to an embodiment of the present invention.
Reference numerals:
1-electrical equipment, 2-gas flowmeter, 3-gas detection device, 4-gas filtration device, 5-gas return pipeline, 6-gas confluence pipeline, 7-first one-way valve, 8-gas storage device, 9-second one-way valve, 10-booster pump, 41-impurity trap, 42-ultrafiltration membrane, 81-gas storage cylinder and 82-electric push rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide an insulating gas electrified detection and purification system which has a simple structure, does not need equipment power failure, can carry out on-site online detection/electrified treatment, has excellent gas purification capacity and can improve the purification efficiency of insulating gas.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention provides an insulating gas live detection and purification system, and mainly relates to an insulating gas live detection and purification system based on a CRRT technology.
Among them, Continuous Renal Replacement Therapy (CRRT) is a blood purification treatment technique for continuously and slowly removing toxic and harmful substances in blood by extracorporeal blood purification to replace the function of kidney. CRRT prolongs the treatment time of blood purification, reduces the treatment efficiency in unit time, minimizes the influence of solute concentration and volume change in blood on the organism, and provides an extremely important homeostasis balance for the treatment of severe patients by adopting a filter with high permeability and good biocompatibility.
The electrified detection and purification system for the insulating gas detects the quality of the insulating gas in the equipment under the condition of no power failure, purifies unqualified gas, and then recharges the qualified gas into the equipment. The method can not only carry out self-diagnosis purification on the gas in the equipment, but also realize zero emission of the gas in the detection treatment process, and cannot cause any pollution to the environment and influence the insulating property of the equipment. The method comprehensively analyzes the quality of the insulating gas in the electricity, can eliminate some equipment hidden dangers in time, reduces the unplanned power failure of the equipment and improves the safe operation reliability of the power grid.
Fig. 1 is a schematic structural diagram of an electrified detecting and purifying system for insulating gas according to an embodiment of the present invention, and as shown in fig. 1, the electrified detecting and purifying system for insulating gas includes: a gas detection device 3, a gas filtration device 4 and a first one-way valve 7.
The first gas input port of the gas detection device 3 is connected with the gas output port pipeline of the electrical equipment 1, the first gas output port of the gas detection device 3 is connected with the gas input port pipeline of the gas filtering device 4, and the gas output port of the gas filtering device 4 is connected with the second gas input port pipeline of the gas detection device 3. And a second gas output port of the gas detection device 3 is connected with a gas input port pipeline of the first one-way valve 7, and a gas output port of the first one-way valve 7 is connected with a gas input port pipeline of the electrical equipment 1.
The gas detection device 3 is used for detecting a gas index of the insulating gas output from the electrical equipment 1 and/or the gas filtering device 4, and comparing the detected gas index with a gas index threshold value to obtain a comparison result; if the comparison result is that the gas index is larger than the gas index threshold value, a first gas output port of the gas detection device 3 is opened; and if the comparison result is that the gas index is less than or equal to the gas index threshold value, a second gas output port of the gas detection device 3 is opened.
The gas filtering device 4 is used to filter the insulating gas.
Among them, the gas filtering apparatus 4 is a core component of the present invention, and as shown in fig. 2, the gas filtering apparatus 4 includes: an impurity trap 41 and an ultrafiltration membrane 42.
One end face of the ultrafiltration membrane 42 is attached to the gas outlet of the gas filtering device 4; the other end face of the ultrafiltration membrane 42 is attached to one end face of the impurity trap 41; the other end face of the impurity trap 41 is bonded to the gas inlet of the gas filtering device 4.
In order to completely filter out impurities in the insulating gas, the impurity trap 41 provided by the present invention needs to be filled with a gas adsorbing material, and further filter out the impurities by using a molecular sieve. Wherein, several porous adsorption materials filled in the impurity trap 41 are used for adsorbing impurities such as acidic decomposition products, moisture and the like in the gas. Wherein the gas adsorbing material comprises: alumina, silica gel, and/or an adsorbent. An ultrafiltration membrane 42 is at the outlet end of the filter to remove minute impurities from the gas.
In order to achieve sufficient filtration of the insulating gas, the present invention provides the impurity trap 41 and the ultrafiltration membrane 42 having the same overall shape as the gas filtration device 4. And the diameters of the impurity trap 41 and one end face of the gas filtering device 4 are larger than those of the other end face.
In the actual use process, in order to avoid the influence of overlarge gas pressure change in the equipment on the normal operation of the equipment while avoiding the poor gas impurity filtering efficiency caused by overlarge flow, the gas flowmeter 2 is correspondingly arranged in the electrified detection and purification system for the insulating gas provided by the invention.
A first gas input port of the gas flowmeter 2 is connected with a gas output port of the electrical equipment 1 through a pipeline; a first gas output port of the gas flowmeter 2 is connected with a first gas input port of the gas detection device 3 through a pipeline; a second gas input port of the gas flowmeter 2 is connected with a gas output port of the first one-way valve 7 through a pipeline; the second gas output port of the gas flow meter 2 is connected to the gas input port of the electrical apparatus 1.
As a further optimization of the system structure provided by the present invention, the gas flow meter 2 can be replaced with a gas flow control module to control the single-pass throughput of the insulating gas. If the single treatment capacity of the insulating gas is too large, the gas pressure in the electrical equipment is lower than the rated alarm pressure, and the system cannot normally operate.
Therefore, the purification process of the electrified detection and purification system for the insulating gas provided by the invention is not realized at one time and needs to be gradually purified. That is, when the system purifies the insulating gas, the system needs to be treated and recharged to the electrical equipment, and the normal operation of the electrical equipment is not influenced as long as the gas output of the insulating gas is controlled not to exceed 20kPa each time.
In the process of delivering the filtered insulating gas back to the electrical device 1, in order to improve the gas output efficiency, the system for detecting and purifying the charged insulating gas provided by the invention may further include: a second check valve 9 and a booster pump 10;
the gas inlet of the second one-way valve 9 is connected with the gas outlet of the first one-way valve 7 through a pipeline; the gas output port of the second one-way valve 9 is connected with the gas input port of the booster pump 10 through a pipeline; the gas output of the booster pump 10 is connected to the second gas input of the flow meter.
In the process of circularly purifying the insulating gas, in order to avoid that the insulating gas causes excessive pressure on the pipeline of the purification system and influences the service life of the pipeline, and simultaneously, in order to prevent the insulating gas from leaking when the electrical equipment 1 or the insulating gas return pipeline has a fault, the insulating gas live-line detection purification system provided by the invention is further provided with: a gas storage device 8.
A gas inlet of the gas storage device 8 is connected with a gas outlet pipeline of the first one-way valve 7; the gas outlet of the gas storage device 8 is connected with the gas inlet of the second one-way valve 9 in a pipeline way.
In order to discharge all the insulating gas stored in the gas storage device 8 and improve the efficiency of the application of the purified insulating gas, the gas storage device 8 may include: a gas storage cylinder 81, an electric push rod 82 and a motor.
The gas inlet of the gas storage cylinder 81 is connected with the gas outlet pipeline of the first one-way valve 7; the gas outlet of the gas storage cylinder 81 is connected to the gas inlet of the second check valve 9.
The electric push rod 82 is matched with the gas storage cylinder 81; the electric push rod 82 is electrically connected with the motor; the motor is used for driving the electric push rod 82 to reciprocate in the gas storage cylinder 81; the electric push rod 82 is used for pushing the insulating gas in the gas storage cylinder 81 to be discharged along the gas output port of the gas storage cylinder 81.
Further, in order to save the manual control cost and improve the purification efficiency of the insulating gas, the gas detection device 3 provided above includes: a gas detector, a comparator and a switch controller.
The gas detector is electrically connected with the comparator; the comparator is connected with the switch controller.
The gas detector is used for detecting indexes of each gas in the insulating gas; the comparator is used for comparing the indexes of the gases with a set gas index threshold value to obtain a comparison result; and the switch controller is used for opening or closing the gas outlet of the gas detection device 3 according to the comparison result.
In addition, in order to avoid the problem of interruption of the insulation gas purification caused by depending on the mains supply mode, the power supply mode of the insulation gas live detection and purification system is preferably a power supply mode combining a solar power supply device and a mains supply device.
The specific working process provided by the invention comprises the following steps:
detection of SF in insulating gas by gas detection device 36Purity, decomposition product, moisture content and other indexes of (sulfur hexafluoride) gas. If SF6Gas quality satisfiesAccording to the national standard requirements, gas is boosted and then recharged into the electrical equipment 1 through the gas confluence pipeline 6, the first one-way valve 7, the second one-way valve 9 and the booster pump 10 under the action of the gas storage cylinder 81 and the electric push rod 82; if SF6If the gas quality does not meet the national standard requirement, the gas filtering device 4 is used for filtering SF6The gas is purified and then is input into a gas detection device 3 through a gas return pipeline 5 for SF detection again6The quality of the gas is recharged into the electrical equipment 1 according to the above process if the quality of the gas is qualified; if not, the processing and detecting flows are circulated again.
The gas detection device 3 has the functions of detecting the purity, humidity and decomposition products of the gas, detects various quality indexes of the gas before and after purification, and provides a basis for the self-purification capacity of the system. The system detects and adsorbs the existence of an internal feedback mechanism, and issues an operation instruction to the purification module according to a detection result.
Compared with the prior art, the electrified detection and purification system for the insulating gas provided by the invention has the following advantages:
1. in the prior art, when the moisture content of the insulating gas in the equipment exceeds the standard or trace impurities are mixed, power failure treatment is required, but the insulating gas electrified detection and purification system disclosed by the invention can circularly purify the insulating gas in the electrical equipment, so that the problem of power failure of the equipment can be avoided, and the working efficiency of the electrical equipment is improved.
2. The insulating gas purification system in the prior art can purify the insulating gas in the electrical equipment only after the electrical equipment is powered off, and the insulating gas live detection purification system provided by the invention can carry out on-line detection and/or live treatment on the insulating gas on site, so that the insulating gas purification efficiency can be improved.
3. The invention adopts the gas filtering device comprising the impurity trap and the ultrafiltration membrane to filter the insulating gas in the electrical equipment, thereby further improving the capability of purifying the insulating gas in an online circulating way.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (9)
1. An electrified detection and purification system for insulating gas, comprising: the gas detection device, the gas filtering device and the first one-way valve;
a first gas input port of the gas detection device is connected with a gas output port pipeline of the electrical equipment; a first gas output port of the gas detection device is connected with a gas input port of the gas filtering device through a pipeline; the gas output port of the gas filtering device is connected with the second gas input port of the gas detection device through a pipeline; a second gas output port of the gas detection device is connected with a gas input port of the first one-way valve through a pipeline; the gas output port of the first one-way valve is connected with the gas input port of the electrical equipment through a pipeline;
the gas detection device is used for detecting a gas index of the insulating gas output from the electrical equipment and/or the gas filtering device, and comparing the detected gas index with a gas index threshold value to obtain a comparison result; if the comparison result is that the gas index is larger than the gas index threshold value, a first gas output port of the gas detection device is opened; if the comparison result shows that the gas index is smaller than or equal to the gas index threshold value, a second gas output port of the gas detection device is opened;
the gas filtering device is used for filtering the insulating gas.
2. The electrified insulating gas detection and purification system as claimed in claim 1, wherein the gas filtering device comprises: an impurity trap and an ultrafiltration membrane;
one end face of the ultrafiltration membrane is attached to a gas outlet of the gas filtering device; the other end face of the ultrafiltration membrane is attached to one end face of the impurity trap; and the other end face of the impurity trap is attached to a gas input port of the gas filtering device.
3. The charged detection and purification system for insulating gas as claimed in claim 2, wherein the impurity trap comprises a gas adsorbing material and a molecular sieve; the gas adsorbent material includes: alumina, silica gel, and/or an adsorbent.
4. The electrified insulating gas detection and purification system as claimed in claim 1, further comprising: a gas flow meter;
the first gas input port of the gas flowmeter is connected with a gas output port pipeline of the electrical equipment; a first gas output port of the gas flowmeter is connected with a first gas input port of the gas detection device through a pipeline; a second gas input port of the gas flowmeter is connected with a gas output port pipeline of the first one-way valve; and the second gas output port of the gas flowmeter is connected with the gas input port of the electrical equipment.
5. The electrified insulating gas detection and purification system as claimed in claim 4, further comprising: a second one-way valve and a booster pump;
the gas input port of the second one-way valve is connected with the gas output port of the first one-way valve through a pipeline; a gas output port of the second one-way valve is connected with a gas input port of the booster pump through a pipeline; and the gas output port of the booster pump is connected with the second gas input port of the gas flowmeter.
6. The electrified insulating gas detection and purification system as claimed in claim 5, further comprising: a gas storage device;
a gas inlet of the gas storage device is connected with a gas outlet pipeline of the first one-way valve; and a gas output port of the gas storage device is connected with a gas input port of the second one-way valve through a pipeline.
7. The charged detection and purification system for insulating gas according to claim 6, wherein the gas storage device comprises: the gas storage cylinder, the electric push rod and the motor;
a gas inlet of the gas storage cylinder is connected with a gas outlet pipeline of the first one-way valve; a gas output port of the gas storage cylinder is connected with a gas input port of the second one-way valve through a pipeline;
the electric push rod is matched with the gas storage cylinder; the electric push rod is electrically connected with the motor; the motor is used for driving the electric push rod to reciprocate in the gas storage cylinder; the electric push rod is used for pushing the insulating gas in the gas storage cylinder to be discharged along a gas outlet of the gas storage cylinder.
8. The charged detection and purification system for insulating gas according to claim 1, wherein the gas detection device comprises: a gas detector, a comparator and a switch controller;
the gas detector is electrically connected with the comparator; the comparator is connected with the switch controller;
the gas detector is used for detecting indexes of each gas in the insulating gas; the comparator is used for comparing the indexes of the gases with a set gas index threshold value to obtain a comparison result; and the switch controller is used for opening or closing a gas output port of the gas detection device according to the comparison result.
9. The electrified insulating gas detection and purification system as claimed in claim 1, further comprising: a power supply device;
the power supply device is used for providing electric energy for the insulating gas electrified detection and purification system;
the power supply device is a solar power supply device or a commercial power supply device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010252952.8A CN111337628A (en) | 2020-04-02 | 2020-04-02 | Electrified detecting and purifying system for insulating gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010252952.8A CN111337628A (en) | 2020-04-02 | 2020-04-02 | Electrified detecting and purifying system for insulating gas |
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| CN111337628A true CN111337628A (en) | 2020-06-26 |
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| CN202010252952.8A Pending CN111337628A (en) | 2020-04-02 | 2020-04-02 | Electrified detecting and purifying system for insulating gas |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112107960A (en) * | 2020-07-31 | 2020-12-22 | 国网安徽省电力有限公司电力科学研究院 | Emergency recovery device and method for leaked gas of electrical equipment |
| CN112107959A (en) * | 2020-07-31 | 2020-12-22 | 国网安徽省电力有限公司电力科学研究院 | Emergency recovery device and method for leaked gas of electrical equipment |
| CN114748975A (en) * | 2022-04-24 | 2022-07-15 | 国家电网有限公司 | Online purifying device and system for insulating gas |
-
2020
- 2020-04-02 CN CN202010252952.8A patent/CN111337628A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112107960A (en) * | 2020-07-31 | 2020-12-22 | 国网安徽省电力有限公司电力科学研究院 | Emergency recovery device and method for leaked gas of electrical equipment |
| CN112107959A (en) * | 2020-07-31 | 2020-12-22 | 国网安徽省电力有限公司电力科学研究院 | Emergency recovery device and method for leaked gas of electrical equipment |
| CN114748975A (en) * | 2022-04-24 | 2022-07-15 | 国家电网有限公司 | Online purifying device and system for insulating gas |
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