CN116256474A - On-line monitoring SF 6 Micro water density device - Google Patents

On-line monitoring SF 6 Micro water density device Download PDF

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Publication number
CN116256474A
CN116256474A CN202310497882.6A CN202310497882A CN116256474A CN 116256474 A CN116256474 A CN 116256474A CN 202310497882 A CN202310497882 A CN 202310497882A CN 116256474 A CN116256474 A CN 116256474A
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water density
device shell
connecting pipe
air
probe
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CN202310497882.6A
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CN116256474B (en
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高存玉
田博文
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Shanghai Oumai Electric Inspection Co ltd
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Shanghai Oumai Electric Inspection Co ltd
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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
    • 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
    • B01D53/26—Drying gases or vapours
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/20136—Forced ventilation, e.g. by fans
    • H05K7/20172—Fan mounting or fan specifications
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
    • H05K7/20409—Outer radiating structures on heat dissipating housings, e.g. fins integrated with the housing

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • General Physics & Mathematics (AREA)
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  • General Health & Medical Sciences (AREA)
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  • Food Science & Technology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

The invention relates to the technical field of gas monitoring, and provides an on-line SF monitoring system 6 The device of little water density, including the device shell, the first connecting pipe is installed to the middle part one end of device shell, and the outside flange joint of first connecting pipe has the installation pipe, and the other end of installation pipe is installed on electrical equipment, and the second connecting pipe is installed to the middle part other end of device shell. The interlayer of the detection chamber is internally provided with a heating coil, the bottom end of the device shell is provided with a gas dispersing fan, so that the gas dispersing fan can supply gas upwards, and the gas can be conveniently gathered to the top of the device shell through the heating of the heating coil when extremely cold in winterThe micro water density transmitter main body at the top of the device shell is subjected to heat preservation and heating, and the detection chamber and the micro water density transmitter main body are cooled by extracting cold air from the ground through the air dispersing fan in high-temperature weather, so that the micro water density transmitter main body and the detection original piece in the detection chamber are ensured to be in a normal working environment, and the detection data is more stable and accurate.

Description

On-line monitoring SF 6 Micro water density device
Technical Field
The invention relates to the technical field of gas monitoring, in particular to an on-line SF monitoring method 6 A device for micro water density.
Background
SF 6 The gas has the functions of arc extinction and insulation in high-voltage electrical equipment and SF in the high-voltage electrical equipment 6 Density reduction and micro water of gasIf the content exceeds the standard, the SF is seriously affected 6 Safe operation of high voltage electrical equipment: SF (sulfur hexafluoride) 6 The reduction of the gas density to a certain extent will lead to a loss of insulation and quenching properties and, therefore, to SF 6 The micro water content and density in the gas are monitored on line, which plays an important role in ensuring the safe and stable operation of the equipment.
Sulfur hexafluoride has toxicity, and can cause dyspnea, wheezing, bluing skin and mucous membrane and general spasm under high concentration, and gas leakage can be dangerous, and when disassembly maintenance and inflation gas supplementing are carried out after gas leakage, moisture can be reversely permeated when leakage is carried out, so SF is needed to be carried out 6 The leakage of gas is detected in time, but the existing monitoring device adopts electronic elements to detect the micro water, density and temperature of the gas, and under extremely cold weather, the physical attribute change of the electronic elements of the on-line monitoring device leads to the incapability of working a circuit, the accuracy of a sensor cannot completely meet the requirements of technical indexes, the front end acquisition data is unreliable, the problem of gas leakage of electrical equipment cannot be found in time, and the on-line monitoring device cannot be suitable for monitoring under extremely cold weather, so that the actual application needs are met.
Therefore, we improve on this and propose an on-line SF monitoring 6 A device for micro water density.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: timely SF detection 6 The leakage of gas, the detecting element of current monitoring devices can't work under extremely cold weather, and the sensor precision can't reach standard, leads to the front end to gather data unreliable, can't in time discover electrical equipment's gas leakage problem, can't be applicable to and monitor under extremely cold weather.
(II) technical scheme
To achieve the above object, the present invention provides an on-line SF monitoring system 6 The device for micro water density comprises a device shell, wherein a first connecting pipe is arranged at one end of the middle part of the device shell, an installation pipe is connected with the outer side flange of the first connecting pipe, the other end of the installation pipe is arranged on an electrical device, and the other end of the middle part of the device shell is provided with a second connecting pipeThe end is installed the second connecting pipe, the inside top of device shell is erect little watertight transducer main part, the bottom of little watertight transducer main part is connected with first probe and second probe, the middle part fixed mounting of device shell has the detection chamber, one side of detection chamber is connected with the air flue, the air flue runs through the device shell and installs the air pump, the middle part of air pump and mounting pipe is connected with the air filling pipe, just the middle part of air flue is connected with the manometer, first probe and second probe penetrate the lateral wall of detection chamber and install the middle part at the detection chamber, the intermediate layer internally mounted of detection chamber has the heating coil pipe, the outer end of heating coil pipe is connected with the heater, the air dispersing fan is installed to the bottom of device shell.
The detection chamber comprises a sealing cylinder and a diaphragm, the side wall of the sealing cylinder is hollow, two ends of the sealing cylinder are communicated with each other and keep the same axis with the first connecting pipe and the second connecting pipe, a sliding rail is arranged on the inner wall of the sealing cylinder, a sliding groove is formed in the edge of the diaphragm, the sliding groove is sleeved on the sliding rail, three electric push rods are connected to one side of the diaphragm, and the tail ends of the three electric push rods are all arranged on the side wall of the device shell.
The diaphragm is obliquely arranged in the sealing cylinder, and a sealing film is arranged at the joint of the diaphragm and the sealing cylinder.
The micro water density transmitter comprises a micro water density transmitter body, wherein a fin-shaped radiating plate is arranged on one periphery of the housing body of the micro water density transmitter body, and the housing body and the radiating plate of the micro water density transmitter body are both aluminum watchcases.
The four-way valve is characterized in that the tail end of the installation tube is connected with a four-way valve, the four-way valve is connected with a second connecting tube in series, the other two ends of the four-way valve are connected with the air inlet end and the air outlet end of the electrical equipment in a sealing mode, and control valves are arranged on four pipelines of the four-way valve.
The first probe and the second probe are L-shaped, the first probe is bent and stretches into the middle of the first connecting pipe, and the second probe is bent and stretches into the middle of the second connecting pipe.
The bottom shell of the device shell is provided with a through groove, and the height of the through groove does not exceed the height of the air dispersing fan.
The device comprises a detection chamber, a device shell, a first connecting pipe, a second connecting pipe, a mounting pipe and sealing rings, wherein the two ends of the detection chamber are welded with the device shell, the sealing rings are arranged at the joints of the first connecting pipe and the mounting pipe, and the sealing rings uniformly adopt ethylene propylene diene monomer raw materials.
Wherein, the middle parts of the two sides of the diaphragm are provided with drying sheets.
(III) beneficial effects
The invention provides an on-line SF monitoring system 6 The device for micro water density has the beneficial effects that:
1. through installing little water density transmitter main part and detection room in the inside of device shell, the intermediate layer internally mounted of detection room has the heating coil pipe, install the fan that looses in the bottom of device shell, and keep warm the protection in the upper end of device shell, make the fan that looses send air upwards, be convenient for when extremely cold winter, make the heating of gas through the heating coil pipe gather to the top of device shell, carry out the heat preservation heating to the little water density transmitter main part at device shell top, and cool off detection room, little water density transmitter main part through the fan that looses from ground extraction cold air when high temperature weather, guarantee that the little water density transmitter main part is in normal operational environment with the detecting element in the detection room, make the detection data more stable accurate.
2. Through being equipped with movable diaphragm in detecting the room, the diaphragm slides about in the sealed section of thick bamboo through the slide rail, cuts apart into two independent cavities with sealed section of thick bamboo inside, detects the pressure between two cavities through the removal of diaphragm, is convenient for in time discover SF in the device 6 The leakage condition of gas to promote the inside check valve of air flue to let out air through the in-process that the spout promoted the diaphragm to reset, utilize manometer and air filling pipe to aerify, carry out the air filling to electrical equipment through the air filling pipe and the installation tube of being connected on the air filling pipe, be convenient for guarantee the inside SF of electrical equipment 6 The density of the gas ensures the normal operation of the electrical equipment.
3. Through being equipped with the dry piece in the middle part of diaphragm, absorb the drying through a small amount of moisture in the gas of dry piece to seal barrel both sides, avoid carrying out the disintegration after gas leakage and examine and repair and aerify the air make-up in-process, because of sealed not tight, infiltration moisture influences the density of gas, be convenient for guarantee electrical equipment's job stabilization.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic illustration of an on-line SF monitoring system provided herein 6 Schematic structural diagram of a device for micro water density;
FIG. 2 is a schematic illustration of an on-line SF monitoring system provided herein 6 Schematic of the device housing of the device for micro water density;
FIG. 3 is a schematic illustration of an on-line SF monitoring system provided herein 6 A schematic diagram of a detection chamber of the device for micro water density;
FIG. 4 is a schematic illustration of an on-line SF monitoring system provided herein 6 A cross-sectional view of a device of micro water density;
FIG. 5 is a schematic illustration of an on-line SF monitoring system provided herein 6 Schematic cross-section of a device for micro water density;
FIG. 6 is a schematic illustration of an on-line SF monitoring system provided herein 6 A schematic diagram of a membrane of a device for micro water density.
In the figure: 1. a device housing; 2. an air pump; 3. an airway; 4. a pressure gauge; 5. a detection chamber; 51. a sealing cylinder; 52. a slide rail; 53. a diaphragm; 54. a chute; 55. an electric push rod; 56. drying the sheet; 6. a first connection pipe; 7. a second connection pipe; 8. a micro-water density transmitter body; 9. a first probe; 10. a second probe; 11. installing a pipe; 12. an air dispersing fan; 13. heating coil pipe; 14. a heater; 15. and (5) supplementing air pipes.
Detailed Description
The following detailed description of specific embodiments of the invention is provided in connection with the accompanying drawings and examples. The following examples are only illustrative of the present invention and are not intended to limit the scope of the invention.
As shown in fig. 1-6, the present embodiment proposes an on-line monitoring of SF 6 The device of little water density, including device shell 1, first connecting pipe 6 is installed to device shell 1's middle part one end, the outside flange joint of first connecting pipe 6 has installation pipe 11, the other end of installation pipe 11 is installed on electrical equipment, device shell 1's middle part other end is installed second connecting pipe 7, device shell 1's inside top is erect little water density transmitter main part 8, little water density transmitter main part 8's bottom is connected with first probe 9 and second probe 10, device shell 1's middle part fixed mounting has detection room 5, one side of detection room 5 is connected with air flue 3, air flue 3 runs through device shell 1 and installs air pump 2, air pump 2 and installation pipe 11's middle part is connected with air make-up pipe 15, and air flue 3's middle part is connected with manometer 4, first probe 9 and second probe 10 pierce through detection room 5's lateral wall and install the middle part at detection room 5, detection room 5's intermediate layer internally mounted has heating coil 13, heating coil 13's outer end is connected with heater 14, device shell 1's bottom is installed air-dispersing fan 12.
The detection chamber 5 comprises a sealing cylinder 51 and a diaphragm 53, the side wall of the sealing cylinder 51 is hollow, two ends of the sealing cylinder 51 are communicated and keep the same axis with the first connecting pipe 6 and the second connecting pipe 7, a sliding rail 52 is arranged on the inner wall of the sealing cylinder 51, a sliding groove 54 is arranged at the edge of the diaphragm 53, the sliding groove 54 is sleeved on the sliding rail 52, one side of the diaphragm 53 is connected with three electric push rods 55, the tail ends of the three electric push rods 55 are all arranged on the side wall of the device shell 1, the sealing cylinder 51 is arranged inside the device shell 1, and the first probe 9 and the second probe 10 detect gas inside the sealing cylinder 51.
The diaphragm 53 is obliquely arranged in the sealing cylinder 51, and a sealing film is arranged at the joint of the diaphragm 53 and the sealing cylinder 51, the diaphragm 53 slides in the sealing cylinder 51, the difference of pressure at two ends of the sealing cylinder 51 is intuitively reflected, the problem of air leakage of the device is quickly exposed, and the device is convenient to maintain and overhaul in time.
The shell body of little water density transmitter main part 8 is equipped with the heating panel of wing form in a week, and little water density transmitter main part 8's shell body and heating panel are aluminium system watchcase, and little water density transmitter main part 8 is installed in the inside upper end of device shell 1, makes device shell 1 keep warm to little water density transmitter main part 8, dispels the heat and increases the temperature.
The end-to-end connection of installation tube 11 has the cross, and establishes ties through cross and second connecting pipe 7, and the other both ends and the inlet end and the end sealing connection that give vent to anger of electrical equipment of cross, and all be equipped with the control valve on four pipelines of cross, will detect the both ends of room 5 and be connected with electrical equipment through the cross, make the inside gas of electrical equipment detect respectively, be convenient for through the density of admitting air and giving vent to anger, the difference contrast of pressure obtains the gas fast and leak, contain numerical value such as little water yield, monitor and regulate and control the device fast.
The first probe 9 and the second probe 10 are L-shaped, the first probe 9 is bent and stretches into the middle of the first connecting pipe 6, the second probe 10 is bent and stretches into the middle of the second connecting pipe 7, and the first probe 9 and the second probe 10 are arranged on one side of the first connecting pipe 6 and one side of the second connecting pipe 7, so that measured data are more accurate.
The bottom shell of the device shell 1 is provided with a through groove, the height of the through groove is not more than that of the air dispersing fan 12, and through the grooving at the bottom of the device shell 1 and the installation of the air dispersing fan 12, air flow is conveniently generated through the air dispersing fan 12, so that the air flow circulates in the device shell 1, and the consistency and constancy of the overall temperature in the device shell 1 are completed.
The two ends of the detection chamber 5 are welded with the device shell 1, sealing rings are arranged at the joints of the first connecting pipe 6 and the second connecting pipe 7 and the mounting pipe 11, the sealing rings uniformly adopt ethylene propylene diene monomer raw materials, the sealing of the joints of the device is guaranteed through the arrangement of the sealing rings, the leakage risk of the device is reduced to the greatest extent, and the air tightness of the device is guaranteed.
The middle parts of the two sides of the diaphragm 53 are provided with drying sheets 56, the air on the two sides of the sealing barrel 51 is dried and absorbed by water through the arrangement of the drying sheets 56, the water content of the air inside the sealing barrel 51 is reduced, and after the air leakage is treated, disassembly maintenance and air inflation and air supplement are carried out, so that the density of the air is maintained, and the work stability of electrical equipment is conveniently ensured.
Specifically, the micro water density transmitter main body 8 and the detection chamber 5 are installed in the device shell 1, the heating coil pipe 13 is installed in the interlayer of the sealing cylinder 51, the heating coil pipe 13 is connected with the heater 14, the air dispersing fan 12 is installed at the bottom end of the device shell 1, the air dispersing fan 12, the heater 14 and the micro water density transmitter main body 8 are powered on externally, when in extremely cold weather, the air dispersing fan 12 is heated by the energization of the heater 14, the sealing cylinder 51 is heated by the heating coil pipe 13 in a heat radiation mode, the upper end of the device shell 1 is sealed, heat dissipation is avoided, the mutual influence of internal temperature and external temperature is avoided, the heat preservation protection is realized, the air dispersing fan 12 rotates to generate air flow, the air flow is supplied upwards, the air flows are enabled to gather towards the top of the device shell 1 through the heating coil pipe 13, the micro water density transmitter main body 8 at the top of the device shell 1 is heated in a heat preservation mode, the whole temperature of equipment can be guaranteed in extremely cold winter, the device is prevented from being damaged, and the air dispersing fan 14 and the heating coil pipe 13 stop working in high temperature weather, the water density transmitter main body 8 is enabled to be more accurately detected, the water density detector main body 8 is enabled to be cooled by the heat dissipation element, the air is more stable, the data of the micro water density detector main body 8 is detected in the air, and the device is more stable in the environment, and the detection device is cooled, and the air inside the device is more detected in the environment; the two ends of the detection chamber 5 are communicated with the first connecting pipe 6 and the second connecting pipe 7, and are connected with the air inlet end and the air outlet end of the electrical equipment through the mounting pipes 11 connected to the first connecting pipe 6 and the second connecting pipe 7, so that cavities on two sides of the sealing cylinder 51 are respectively connected with the two ends of the electrical equipment, the air pressure in the electrical equipment is intuitively reflected, when air leakage occurs in the electrical equipment, the air pressure of the air inlet end is higher than that of the air outlet end, the diaphragm 53 in the sealing cylinder 51 slides to one side of a chamber connected with the air inlet end, at the moment, the movement of the diaphragm 53 triggers an alarm, the alarm is positioned at two ends of the surface of the sliding rail 52, the alarm is not marked, meanwhile, a sliding groove 54 is connected to the diaphragm 53, the diaphragm 53 moves and resets by virtue of the sliding groove 54, the air in the chamber on the other side of the sealing cylinder 51 is pushed to be extruded, the air is extruded by a one-way valve in the air channel 3, the sealing cylinder 51 connected with one end of the air channel 3 is leaked to the inside the pressure gauge 4, and the other end of the pressure gauge 4 is leaked to the air outlet end of the air supply pipe 15 exhausting, and inflating the inside of the mounting tube 11 by using the air supplementing tube 15, so as to ensure SF inside the electrical equipment 6 The density of the gas ensures the normal operation of the electrical equipment; through being equipped with dry piece 56 in the middle part of diaphragm 53, absorb the drying through dry piece 56 to a small amount of moisture in the gas of seal cylinder 51 both sides, avoid carrying out the disintegration after the gas leakage and examine and repair and aerify the air make-up in-process, because the density of gas is not tight because of the sealing, infiltration moisture influences, the stability of operation of electrical equipment is convenient for guarantee.
The above embodiments are only for illustrating the present invention, and are not limiting of the present invention. While the invention has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various combinations, modifications, and substitutions can be made thereto without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (8)

1. On-line monitoring SF 6 Device of little water density, including device shell (1), its characterized in that: the utility model discloses a device, including device shell (1), first connecting pipe (6) are installed to middle part one end, outside flange joint of first connecting pipe (6) has installation pipe (11), the other end of installation pipe (11) is installed on electrical equipment, second connecting pipe (7) are installed to the middle part other end of device shell (1), micro water density transmitter main part (8) have been erect to the inside top of device shell (1), the bottom of micro water density transmitter main part (8) is connected with first probe (9) and second probe (10), the middle part fixed mounting of device shell (1) has detection room (5), detection room (5) include seal cartridge (51) and diaphragm (53), the lateral wall cavity of seal cartridge (51), just the both ends of seal cartridge (51) link up and keep same axis with first connecting pipe (6) and second connecting pipe (7), slide rail (52) are installed to the inner wall of seal cartridge (51), slide rail (54) have been seted up at the edge of diaphragm (53), slide rail (54) are cup jointed on slide rail (52), electric putter (55) are connected on three one side (55)The air pump (2) is installed to one side of detecting room (5) on the lateral wall of device shell (1) all to the end of electric putter (55), air pump (2) are run through device shell (1) to air flue (3), air pump (2) and the middle part of installing pipe (11) are connected with air make-up pipe (15), just the middle part of air flue (3) is connected with manometer (4), the lateral wall that first probe (9) and second probe (10) penetrated detecting room (5) is installed in the middle part of detecting room (5), the intermediate layer internally mounted of detecting room (5) has heating coil (13), the outer end of heating coil (13) is connected with heater (14), scattered gas fan (12) are installed to the bottom of device shell (1).
2. An on-line monitoring SF as claimed in claim 1 6 The device of little water density, its characterized in that: the diaphragm (53) is obliquely arranged in the sealing cylinder (51), and a sealing film is arranged at the joint of the diaphragm (53) and the sealing cylinder (51).
3. An on-line monitoring SF as claimed in claim 1 6 The device of little water density, its characterized in that: the shell body of the micro water density transmitter main body (8) is provided with a fin-shaped radiating plate on one periphery, and the shell body and the radiating plate of the micro water density transmitter main body (8) are both made of aluminum watch cases.
4. An on-line monitoring SF as claimed in claim 1 6 The device of little water density, its characterized in that: the tail end of the installation pipe (11) is connected with a four-way joint, the four-way joint is connected with a second connecting pipe (7) in series, the other two ends of the four-way joint are in sealing connection with the air inlet end and the air outlet end of the electrical equipment, and control valves are arranged on four pipelines of the four-way joint.
5. An on-line monitoring SF as claimed in claim 1 6 The device of little water density, its characterized in that: the first probe (9) and the second probe (10) are L-shaped, and the first probe (9) is bentAnd the second probe (10) is bent and stretches into the middle of the second connecting pipe (7).
6. An on-line monitoring SF as claimed in claim 1 6 The device of little water density, its characterized in that: the bottom shell of the device shell (1) is provided with a through groove, and the height of the through groove is not more than that of the air dispersing fan (12).
7. An on-line monitoring SF as claimed in claim 1 6 The device of little water density, its characterized in that: the two ends of the detection chamber (5) are welded with the device shell (1), sealing rings are arranged at the joints of the first connecting pipe (6) and the second connecting pipe (7) and the mounting pipe (11), and the sealing rings uniformly adopt ethylene propylene diene monomer raw materials.
8. An on-line monitoring SF as claimed in claim 2 6 The device of little water density, its characterized in that: and the middle parts of two sides of the diaphragm (53) are provided with drying sheets (56).
CN202310497882.6A 2023-05-06 2023-05-06 On-line monitoring SF 6 Micro water density device Active CN116256474B (en)

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CN111306449A (en) * 2019-12-24 2020-06-19 国网新疆电力有限公司吐鲁番供电公司 Micro-water monitoring and processing system for GIS (gas insulated switchgear) transformer substation
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