CN105806902A - On-line monitoring device for micro-water content of sulfur-hexafluoride circuit breaker - Google Patents
On-line monitoring device for micro-water content of sulfur-hexafluoride circuit breaker Download PDFInfo
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- CN105806902A CN105806902A CN201610331806.8A CN201610331806A CN105806902A CN 105806902 A CN105806902 A CN 105806902A CN 201610331806 A CN201610331806 A CN 201610331806A CN 105806902 A CN105806902 A CN 105806902A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
- G01N27/223—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
Abstract
The invention discloses an on-line monitoring device for the micro-water content of a sulfur-hexafluoride circuit breaker.The on-line monitoring device is characterized by comprising a circuit breaker air chamber (11), an air distributing chamber (15) and a charging station duty room (10); an air inlet of a three-way part (2) is installed on an air outlet of the circuit breaker air chamber (11), a first air outlet of the three-way part (2) is connected with a second check valve (16), a second air outlet of the three-way part (2) is connected with one end of an air guide tube (3), the other end of the air guide tube (3) is connected with the upper end of a first flow guide tube (12), a vertical partition plate (13) is arranged in the air distributing chamber (15), the internal space of the air distributing chamber (15) is divided by the partition plate (13) into a first cavity (17) and a second cavity (18), and the lower end of the first flow guide tube (12) is located at the bottom of the first cavity (17).By means of the on-line monitoring device, humidity signals of sulfur hexafluoride are converted into capacitance signals to be transmitted to a control device through a humidity sensor, the control device converts analog signals into digital signals and transmits the digital signals to the charging station duty room, and an operator on duty can monitor humidity information in real time accordingly.
Description
Technical field
The present invention relates to a kind of on-Line Monitor Device, specifically a kind of sulfur hexafluoride breaker micro-water content on-Line Monitor Device.
Background technology
Electric current that chopper refers to close, carry and cut-off under normal loop condition and can close, carrying and the switching device of electric current that cut-offs under abnormal loop condition within the time of regulation.Chopper is divided into primary cut-out and low-voltage circuit breaker by its use scope, and high-low pressure identification of boundaries is fuzzyyer, generally more than 3kV is called High-Voltage Electrical Appliances.Existing SF chopper water content monitoring device can not dispose the dampness in air well, causes that malaria mixes with the gas of SF chopper, causes that SF chopper water content detection numerical value is inaccurate.
Summary of the invention
It is an object of the invention to provide a kind of sulfur hexafluoride breaker micro-water content on-Line Monitor Device, it is possible to solve the problems referred to above.
nullThe present invention is for achieving the above object，It is achieved through the following technical solutions: a kind of sulfur hexafluoride breaker micro-water content on-Line Monitor Device，Including chopper air chamber、Sub-air chamber and charging station night shift room，The air inlet of threeway is installed in the gas outlet of chopper air chamber，First gas outlet of threeway connects the second non-return valve，Second gas outlet of threeway connects one end of airway，The other end of airway connects the upper end of the first mozzle，Vertical dividing plate is set in sub-air chamber，The inner space of sub-air chamber is divided into the first cavity and the second cavity by dividing plate，The lower end of the first mozzle is positioned at the bottom of the first cavity，Dividing plate is installed the upper end of the second mozzle，The lower end of the second mozzle is positioned at the bottom of the second cavity，The upper end of the second mozzle communicates with the first cavity，Sub-air chamber installs blower fan，Blower fan and the second cavity communicate，Sub-air chamber connects nitrogen cylinder and humidity sensor，Drying device is set between nitrogen cylinder and sub-air chamber，Nitrogen cylinder and the first cavity communicate，Humidity sensor and the second cavity communicate，Humidity sensor connects one end of transmission medium，The other end of transmission medium connects charging station night shift room，Transmission medium is installed and controls device.
In order to realize the purpose of the present invention further, it is also possible to by the following technical solutions: install the first non-return valve between gas outlet and the threeway of described chopper air chamber；Described first mozzle is L-shaped；Described second mozzle is L-shaped；Described sub-air chamber inner and outer wall is coated with fire proof heat-insulation layer, fire proof heat-insulation layer is with parts by weight, it is made up of following raw material: phenol resin foam 30 ~ 40 parts, cement 20 ~ 30 parts, Gypsum Fibrosum powder 5 ~ 10 parts, tetramethylolmethane 10 ~ 15 parts, Pulvis Talci 1 ~ 5 part, dodecylbenzene sodium sulfonate 1 ~ 5 part, 10 ~ 15 parts of magnesium hydroxide, 5 ~ 10 parts of flyash, xylene monosulfonic acid 3 ~ 8 parts and 90 ~ 100 parts of water；
Described phenol resin foam is prepared by following steps:
3,5-xylenols and base catalyst are mixed, is warming up to 100 ~ 110 DEG C, back flow reaction 20 ~ 40 minutes, obtain mixed liquor；The mass ratio of 3,5-xylenols and base catalyst is 100:5 ~ 10；
To stepGained mixed liquor drips furfural, dropwises continuation back flow reaction 2 ~ 3 hours at 100 ~ 110 DEG C, obtain phenolic resin；The mass ratio of described 3,5-xylenols and furfural is 100:120 ~ 150；
With parts by weight, by step90 ~ 100 parts of gained phenolic resin and foaming agent 5 ~ 10 parts are uniformly mixed, and obtain phenol resin foam；Described foaming agent is pentane or normal hexane.
It is an advantage of the current invention that: the present invention adds nitrogen cylinder and humidity sensor in sub-air chamber, humid air in sub-air chamber can be driven out of by nitrogen by nitrogen cylinder before humidity is detected by humidity sensor, mixing with the gas of SF chopper thus avoiding malaria, substantially increasing sulfur hexafluoride breaker micro-water content on-Line Monitor Device and SF chopper water content is detected the accuracy of numerical value.Owing to the relative molecular mass of sulfur hexafluoride is more than the relative molecular mass of nitrogen, sulfur hexafluoride enters bottom nitrogen chamber, thus being extruded by nitrogen.Sulfur hexafluoride can be importing directly into the bottom of sub-air chamber by first mozzle of the present invention, mixes thus avoiding sulfur hexafluoride with air, and what substantially increase air drives efficiency out of.Sub-air chamber is divided into two spaces by the dividing plate of the present invention, so that malaria can be carried out secondary filter by the second mozzle by sub-air chamber.The moisture signal of sulfur hexafluoride can be converted into capacitance signal and pass to control device by the humidity sensor of the present invention, and analogue signal is converted into digital signal and passes to charging station night shift room by control device, enables operator on duty that humidity information to be monitored in real time.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Accompanying drawing illustrates: 1 first non-return valve 2 threeway 3 airway 4 humidity sensor 5 drying device 6 nitrogen cylinder 7 blower fan 8 transmission medium 9 controls device 10 charging station night shift room 11 chopper air chamber 12 first mozzle 13 dividing plate 14 second mozzle 15 sub-air chamber 16 second non-return valve 17 first cavity 18 second cavity.
Detailed description of the invention
nullSulfur hexafluoride breaker micro-water content on-Line Monitor Device，As shown in Figure 1，Including chopper air chamber 11、Sub-air chamber 15 and charging station night shift room 10，The air inlet of threeway 2 is installed in the gas outlet of chopper air chamber 11，First gas outlet of threeway 2 connects the second non-return valve 16，Second gas outlet of threeway 2 connects one end of airway 3，The other end of airway 3 connects the upper end of the first mozzle 12，Vertical dividing plate 13 is set in sub-air chamber 15，The inner space of sub-air chamber 15 is divided into the first cavity 17 and the second cavity 18 by dividing plate 13，The lower end of the first mozzle 12 is positioned at the bottom of the first cavity 17，Dividing plate 13 is installed the upper end of the second mozzle 14，The lower end of the second mozzle 14 is positioned at the bottom of the second cavity 18，The upper end of the second mozzle 14 communicates with the first cavity 17，Sub-air chamber 15 installs blower fan 7，Blower fan 7 communicates with the second cavity 18，Sub-air chamber 15 connects nitrogen cylinder 6 and humidity sensor 4，Drying device 5 is set between nitrogen cylinder 6 and sub-air chamber 15，Nitrogen cylinder 6 communicates with the first cavity 17，Humidity sensor 4 communicates with the second cavity 18，Humidity sensor 4 connects one end of transmission medium 8，The other end of transmission medium 8 connects charging station night shift room 10，Transmission medium 8 is installed and controls device 9.
The present invention adds nitrogen cylinder 6 and humidity sensor 4 in sub-air chamber 15, humid air in sub-air chamber 15 can be driven out of by nitrogen by nitrogen cylinder 6 before humidity is detected by humidity sensor 4, mixing with the gas of SF chopper thus avoiding malaria, substantially increasing sulfur hexafluoride breaker micro-water content on-Line Monitor Device and SF chopper water content is detected the accuracy of numerical value.Owing to the relative molecular mass of sulfur hexafluoride is more than the relative molecular mass of nitrogen, sulfur hexafluoride enters bottom nitrogen chamber, thus being extruded by nitrogen.Sulfur hexafluoride can be importing directly into the bottom of sub-air chamber 15 by first mozzle 12 of the present invention, mixes thus avoiding sulfur hexafluoride with air, and what substantially increase air drives efficiency out of.Sub-air chamber 15 is divided into two spaces by the dividing plate 13 of the present invention, so that malaria can be carried out secondary filter by the second mozzle 14 by sub-air chamber 15.The moisture signal of sulfur hexafluoride can be converted into capacitance signal and pass to control device 9 by the humidity sensor 4 of the present invention, analogue signal is converted into digital signal and passes to charging station night shift room 10 by control device 9, enables operator on duty that humidity information to be monitored in real time.Sulfur hexafluoride after use completes, can be extracted out by blower fan 7 in nitrogen chamber, it is to avoid sulfur hexafluoride rests on nitrogen chamber always.
Between gas outlet and the threeway 2 of described chopper air chamber 11, first non-return valve 1 is installed.First non-return valve 1 is possible to prevent sulfur hexafluoride to reflux.
For convenience of connection airway 3 and the first cavity 17, described first mozzle 12 is L-shaped.
For convenience of connection the first cavity 17 and the second cavity 18, the second mozzle 14 is L-shaped.
SF6 chopper micro-water content on-Line Monitor Device can find that SF6 chopper micro-water content exceeds standard the very first time, carries out that alarm is on duty, micro-water content value exceeds standard in maintainer's SF6 chopper, and exceed standard chopper in time to micro-water content.Completely avoid micro-water content in personal monitoring's SF6 chopper, greatly reduce the number of times of the high-risk equipment of worker exposure and high-risk environment, reduce the working strength of maintainer.
In station under complex electromagnetic environment interference, moisture signal is converted into frequency signal by frequency measurement circuit, enhances the interference free performance of transmission signal；Transmission medium can adopt SYV type coaxial cable, and its transmission frequency signal can diminish the slightly worse defect of its anti-interference, long transmission distance.Design between the two improves transmission range, improves interference free performance.
The working times such as warning backstage generates form and is easy on duty, maintainer and grasps SF6 chopper micro-water content situation of change, reasonable arrangement ventilation.
Under micro-water content exceeds standard condition, warning backstage can accurately send alarm signal；Under extreme conditions, device can take off from the first non-return valve being connected with chopper air chamber, it is ensured that the safe and stable operation of equipment.
Gas in chopper air chamber enters device air storage chamber by threeway first non-return valve of breaker body through threeway, airway, condenser type fractionated polymer air chamber humidity sensor 4 in sub-air chamber 15 senses gas humidity and is converted to capacitance signal, and threeway 3, airway 2, sub-air chamber 15, condenser type high molecule humidity sensor 4 constitute the part of data acquisition of SF6 chopper micro-water content on-Line Monitor Device.Control device and capacitance variations is converted into frequency signal by frequency measurement circuit by the capacitance variations that part of data acquisition collection comes, by mcu programming the humidity value representated by capacitance signal corresponding to frequency signal be identified and send alarm signal when it exceeds threshold value.Control device and transmit a signal to warning backstage by transmission medium, when humidity value is less than threshold value, the information of humidity is transmitted to backstage；When humidity value exceedes threshold value, humidity information and alarm signal are transmitted to backstage of reporting to the police.Warning backstage displays when receiving humidity information and record, sends warning, and can generate humidity information form on warning backstage after the signal that receives the report for police service.
Described sub-air chamber 15 inner and outer wall is coated with fire proof heat-insulation layer, fire proof heat-insulation layer is with parts by weight, it is made up of following raw material: phenol resin foam 30 ~ 40 parts, cement 20 ~ 30 parts, Gypsum Fibrosum powder 5 ~ 10 parts, tetramethylolmethane 10 ~ 15 parts, Pulvis Talci 1 ~ 5 part, dodecylbenzene sodium sulfonate 1 ~ 5 part, 10 ~ 15 parts of magnesium hydroxide, 5 ~ 10 parts of flyash, xylene monosulfonic acid 3 ~ 8 parts and 90 ~ 100 parts of water；
Described phenol resin foam is prepared by following steps:
3,5-xylenols and base catalyst are mixed, is warming up to 100 ~ 110 DEG C, back flow reaction 20 ~ 40 minutes, obtain mixed liquor；The mass ratio of 3,5-xylenols and base catalyst is 100:5 ~ 10；
To stepGained mixed liquor drips furfural, dropwises continuation back flow reaction 2 ~ 3 hours at 100 ~ 110 DEG C, obtain phenolic resin；The mass ratio of described 3,5-xylenols and furfural is 100:120 ~ 150；
With parts by weight, by step90 ~ 100 parts of gained phenolic resin and foaming agent 5 ~ 10 parts are uniformly mixed, and obtain phenol resin foam；Described foaming agent is pentane or normal hexane.This fire proof heat-insulation layer adopts Foaming of phenolic resin to add appropriate cement based gel rubber material and external feeding is mixed with gained, this fire proof heat-insulation layer is the high performance fire proof heat-insulation layer of porous light, the advantage both with the combustion of phenolic resin difficulty, low cigarette and high temperature resistance distortion, there is again higher refractory temperature, its refractory temperature can arrive more than 1100 DEG C, combustibility is A1 level, belongs to incombustible material, and fire safety performance is superior；The rate of closed hole of this fire proof heat-insulation layer is more than 99%, and high rate of closed hole makes cross-ventilation heat transfer significantly reduce, thus having the heat-proof quality of excellence, it is possible to prevent because sub-air chamber 15 internal high temperature causes that the situation scalding staff occurs；This preparation process easily operates, and the requirement of equipment is low, it is easy to accomplish, commercial production can be realized.
Below in conjunction with specific embodiment, the fire proof heat-insulation layer of the present invention is further described.
Embodiment 1
Fire proof heat-insulation layer, with parts by weight, is made up of following raw material: phenol resin foam 30kg, cement 20kg, Gypsum Fibrosum powder 5kg, tetramethylolmethane 10kg, Pulvis Talci 1kg, dodecylbenzene sodium sulfonate 1kg, magnesium hydroxide 10kg, flyash 5kg, xylene monosulfonic acid 3kg and water 90kg；
Described phenol resin foam is prepared by following steps:3,5-xylenols and 5kg base catalyst are mixed by 100kg, are warming up to 100 DEG C, and back flow reaction 20 minutes obtains mixed liquor；To stepGained mixed liquor drips 120kg furfural, dropwises continuation back flow reaction 2 hours at 100 DEG C, obtain phenolic resin；With parts by weight, by stepGained phenolic resin 90kg and foaming agent pentane 5kg is uniformly mixed, and obtains phenol resin foam.
Embodiment 2
Fire proof heat-insulation layer, with parts by weight, is made up of following raw material: phenol resin foam 40kg, cement 30kg, Gypsum Fibrosum powder 10kg, tetramethylolmethane 15kg, Pulvis Talci 5kg, dodecylbenzene sodium sulfonate 5kg, magnesium hydroxide 15kg, flyash 10kg, xylene monosulfonic acid 8kg and water 100kg；
Described phenol resin foam is prepared by following steps:100kg3,5-xylenols and base catalyst are mixed, is warming up to 110 DEG C, back flow reaction 40 minutes, obtain mixed liquor；To stepGained mixed liquor drips 150kg furfural, dropwises continuation back flow reaction 3 hours at 110 DEG C, obtain phenolic resin；With parts by weight, by stepGained phenolic resin 100kg and foaming agent 10kg is uniformly mixed, and obtains phenol resin foam；Described foaming agent is normal hexane.
Embodiment 3
Fire proof heat-insulation layer, with parts by weight, is made up of following raw material: phenol resin foam 34kg, cement 22kg, Gypsum Fibrosum powder 8kg, tetramethylolmethane 13kg, Pulvis Talci 4kg, dodecylbenzene sodium sulfonate 3kg, magnesium hydroxide 12kg, flyash 6kg, xylene monosulfonic acid 7kg and water 92kg；
Described phenol resin foam is prepared by following steps:100kg3,5-xylenols and 7kg base catalyst potassium hydroxide are mixed, is warming up to 102 DEG C, back flow reaction 25 minutes, obtain mixed liquor；To stepGained mixed liquor drips 125kg furfural, dropwises continuation back flow reaction 2.5 hours at 105 DEG C, obtain phenolic resin；With parts by weight, by stepGained phenolic resin 98kg and foaming agent 8kg is uniformly mixed, and obtains phenol resin foam；Described foaming agent is pentane.
Embodiment 4
Fire proof heat-insulation layer, with parts by weight, is made up of following raw material: phenol resin foam 35kg, cement 25kg, Gypsum Fibrosum powder 8kg, tetramethylolmethane 12kg, Pulvis Talci 4kg, dodecylbenzene sodium sulfonate 4kg, magnesium hydroxide 14kg, flyash 8kg, xylene monosulfonic acid 6kg and water 95kg；
Described phenol resin foam is prepared by following steps:100kg3,5-xylenols and 8kg sodium hydroxide are mixed, is warming up to 105 DEG C, back flow reaction 30 minutes, obtain mixed liquor；To stepGained mixed liquor drips 140kg furfural, dropwises continuation back flow reaction 2.5 hours at 105 DEG C, obtain phenolic resin；With parts by weight, by stepGained phenolic resin 95kg and foaming agent 8kg is uniformly mixed, and obtains phenol resin foam；Described foaming agent is pentane.
Embodiment 5
The preparation method of the fire proof heat-insulation layer described in embodiment 1, comprises the following steps:
3,5-xylenols and 5kg base catalyst are mixed by 100kg, are warming up to 100 DEG C, and back flow reaction 20 minutes obtains mixed liquor；
To stepGained mixed liquor drips 120kg furfural, dropwises continuation back flow reaction 2 hours at 100 DEG C, obtain phenolic resin；
With parts by weight, by stepGained phenolic resin 90kg and foaming agent pentane 5kg is uniformly mixed, and obtains phenol resin foam；
With parts by weight, by cement 20kg, Gypsum Fibrosum powder 5kg, tetramethylolmethane 10kg, Pulvis Talci 1kg, dodecylbenzene sodium sulfonate 1kg, magnesium hydroxide 10kg, flyash 5kg and water 90kg mix homogeneously, obtain compound；
By stepGained phenol resin foam 30kg, xylene monosulfonic acid 3kg stirring and evenly mixing, under agitation add stepGained compound, mix homogeneously post-foaming molding, natural air drying, cut into specification shape, obtain fire proof heat-insulation layer.
Embodiment 6
The preparation method of the fire proof heat-insulation layer described in embodiment 2, comprises the following steps:
100kg3,5-xylenols and base catalyst are mixed, is warming up to 110 DEG C, back flow reaction 40 minutes, obtain mixed liquor；
To stepGained mixed liquor drips 150kg furfural, dropwises continuation back flow reaction 3 hours at 110 DEG C, obtain phenolic resin；
With parts by weight, by stepGained phenolic resin 100kg and foaming agent 10kg is uniformly mixed, and obtains phenol resin foam；Described foaming agent is normal hexane；
With parts by weight, by cement 30kg, Gypsum Fibrosum powder 10kg, tetramethylolmethane 15kg, Pulvis Talci 5kg, dodecylbenzene sodium sulfonate 5kg, magnesium hydroxide 15kg, flyash 10kg and water 100kg mix homogeneously, obtain compound；
By stepGained phenol resin foam 40kg, xylene monosulfonic acid 8kg stirring and evenly mixing, under agitation add stepGained compound, mix homogeneously post-foaming molding, natural air drying, cut into specification shape, obtain fire proof heat-insulation layer.
Embodiment 7
The preparation method of the fire proof heat-insulation layer described in embodiment 3, comprises the following steps:
100kg3,5-xylenols and 7kg base catalyst potassium hydroxide are mixed, is warming up to 102 DEG C, back flow reaction 25 minutes, obtain mixed liquor；
To stepGained mixed liquor drips 125kg furfural, dropwises continuation back flow reaction 2.5 hours at 105 DEG C, obtain phenolic resin；
With parts by weight, by stepGained phenolic resin 98kg and foaming agent 8kg is uniformly mixed, and obtains phenol resin foam；Described foaming agent is pentane；
With parts by weight, by cement 22kg, Gypsum Fibrosum powder 8kg, tetramethylolmethane 13kg, Pulvis Talci 4kg, dodecylbenzene sodium sulfonate 3kg, magnesium hydroxide 12kg, flyash 6kg, xylene monosulfonic acid and water 92kg mix homogeneously, obtain compound；
By stepGained phenol resin foam 34kg, xylene monosulfonic acid 7kg stirring and evenly mixing, under agitation add stepGained compound, mix homogeneously post-foaming molding, natural air drying, cut into specification shape, obtain fire proof heat-insulation layer.
Embodiment 8
The preparation method of the fire proof heat-insulation layer described in embodiment 4, comprises the following steps:
100kg3,5-xylenols and 8kg sodium hydroxide are mixed, is warming up to 105 DEG C, back flow reaction 30 minutes, obtain mixed liquor；
To stepGained mixed liquor drips 140kg furfural, dropwises continuation back flow reaction 2.5 hours at 105 DEG C, obtain phenolic resin；
With parts by weight, by stepGained phenolic resin 95kg and foaming agent 8kg is uniformly mixed, and obtains phenol resin foam；Described foaming agent is pentane；
With parts by weight, by cement 25kg, Gypsum Fibrosum powder 8kg, tetramethylolmethane 12kg, Pulvis Talci 4kg, dodecylbenzene sodium sulfonate 4kg, magnesium hydroxide 14kg, flyash 8kg and water 95kg mix homogeneously, obtain compound；
By stepGained phenol resin foam 35 parts, xylene monosulfonic acid 6kg stirring and evenly mixing, under agitation add stepGained compound, mix homogeneously post-foaming molding, natural air drying, cut into specification shape, obtain fire proof heat-insulation layer.
Technical scheme is not restricted in the scope of embodiment of the present invention.The technology contents of the not detailed description of the present invention is known technology.
Claims (5)
- null1. sulfur hexafluoride breaker micro-water content on-Line Monitor Device，It is characterized in that: include chopper air chamber (11)、Sub-air chamber (15) and charging station night shift room (10)，The air inlet of threeway (2) is installed in the gas outlet of chopper air chamber (11)，First gas outlet of threeway (2) connects the second non-return valve (16)，Second gas outlet of threeway (2) connects one end of airway (3)，The other end of airway (3) connects the upper end of the first mozzle (12)，Vertical dividing plate (13) is set in sub-air chamber (15)，The inner space of sub-air chamber (15) is divided into the first cavity (17) and the second cavity (18) by dividing plate (13)，The lower end of the first mozzle (12) is positioned at the bottom of the first cavity (17)，The upper upper end installing the second mozzle (14) of dividing plate (13)，The lower end of the second mozzle (14) is positioned at the bottom of the second cavity (18)，The upper end of the second mozzle (14) communicates with the first cavity (17)，Sub-air chamber (15) installs blower fan (7)，Blower fan (7) communicates with the second cavity (18)，Sub-air chamber (15) connects nitrogen cylinder (6) and humidity sensor (4)，Drying device (5) is set between nitrogen cylinder (6) and sub-air chamber (15)，Nitrogen cylinder (6) communicates with the first cavity (17)，Humidity sensor (4) communicates with the second cavity (18)，Humidity sensor (4) connects one end of transmission medium (8)，The other end of transmission medium (8) connects charging station night shift room (10)，The upper installation of transmission medium (8) controls device (9).
- 2. sulfur hexafluoride breaker micro-water content on-Line Monitor Device according to claim 1, it is characterised in that: between gas outlet and the threeway (2) of described chopper air chamber (11), the first non-return valve (1) is installed.
- 3. sulfur hexafluoride breaker micro-water content on-Line Monitor Device according to claim 1, it is characterised in that: described first mozzle (12) is L-shaped.
- 4. sulfur hexafluoride breaker micro-water content on-Line Monitor Device according to claim 1, it is characterised in that: described second mozzle (14) is L-shaped.
- 5. sulfur hexafluoride breaker micro-water content on-Line Monitor Device according to claim 1, it is characterized in that: described sub-air chamber (15) inner and outer wall is coated with fire proof heat-insulation layer with parts by weight, it is made up of following raw material: phenol resin foam 30 ~ 40 parts, cement 20 ~ 30 parts, Gypsum Fibrosum powder 5 ~ 10 parts, tetramethylolmethane 10 ~ 15 parts, Pulvis Talci 1 ~ 5 part, dodecylbenzene sodium sulfonate 1 ~ 5 part, 10 ~ 15 parts of magnesium hydroxide, 5 ~ 10 parts of flyash, xylene monosulfonic acid 3 ~ 8 parts and 90 ~ 100 parts of water；Described phenol resin foam is prepared by following steps:3,5-xylenols and base catalyst are mixed, is warming up to 100 ~ 110 DEG C, back flow reaction 20 ~ 40 minutes, obtain mixed liquor；The mass ratio of 3,5-xylenols and base catalyst is 100:5 ~ 10；To stepGained mixed liquor drips furfural, dropwises continuation back flow reaction 2 ~ 3 hours at 100 ~ 110 DEG C, obtain phenolic resin；The mass ratio of described 3,5-xylenols and furfural is 100:120 ~ 150；With parts by weight, by step90 ~ 100 parts of gained phenolic resin and foaming agent 5 ~ 10 parts are uniformly mixed, and obtain phenol resin foam；Described foaming agent is pentane or normal hexane.
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