CN108963785A - A kind of anti-condensation intelligent detection and control system of switchgear - Google Patents
A kind of anti-condensation intelligent detection and control system of switchgear Download PDFInfo
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- CN108963785A CN108963785A CN201811138833.9A CN201811138833A CN108963785A CN 108963785 A CN108963785 A CN 108963785A CN 201811138833 A CN201811138833 A CN 201811138833A CN 108963785 A CN108963785 A CN 108963785A
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- Prior art keywords
- cabinet body
- condensation
- electrical equipment
- chill
- cabinet
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/02—Polyamines
Abstract
The invention discloses a kind of anti-condensation intelligent detection and control systems of switchgear, including cabinet body, insulating layer is arranged in cabinet body outer surface, condensation generating mechanism is provided on the inner wall of cabinet body, first temperature sensor is set on cabinet body inner wall, the dew point hygrometer for detecting inner air dew-point temperature is set in cabinet body, second temperature sensor is arranged in the intracorporal electrical equipment outer surface of cabinet, drier for electrical equipment to be dried is set in cabinet body, PLC controller is set in cabinet body；One aspect of the present invention is capable of providing chill item of the temperature lower than electrical equipment surface temperature in switchgear so that dew condensation phenomenon preferentially occurs on chill surface, and the droplet of condensation is dropped into the container equipped with desiccant along chill item, greatly reduce the probability that condensation occurs in the cabinet that opens the light on electrical equipment, on the other hand electrical equipment can be dried using cabinet intracorporal drier, to further avoid that dew condensation phenomenon occurs on electrical equipment.
Description
Technical field
The present invention relates to the anti-condensation technical fields of the cabinet that opens the light, and control more particularly, to a kind of anti-condensation intelligent measurement of switchgear
System.
Background technique
Switchgear is very important electrical equipment in electric system, and switchgear is responsible in the power system to be closed and break
Open the dual function of power circuit, protection system safety.As electric power is towards the rapid development of high voltage, large-sized unit, large capacity,
Power grid is growing and the promotion and popularization of Unattended substation management mode and comprehensive automation, the safe operation of switchgear
It is more and more important, and requirement of the modern power systems to power quality is higher and higher, correspondingly to the reliability of switchgear
More stringent requirements are proposed.Since narrow space, phase spacing are small in cabinet, and cabinet body seals, the excessive equipment surface of air humidity
Moisture is agglomerated, causes mould to breed and accelerates, metal erosion quickening causes contact surface to aoxidize, and contact resistance increases, component in cabinet
And connecting terminal is easy dampness and short circuit or ground fault occurs, and causes the insulation performance of equipment to reduce, to the safety of switchgear
Threat is brought, the generation of accident is be easy to cause.
However, traditional anti-condensation mode of heating can not judge the condensation of the big generation of cabinet internal-external temperature difference, lead to not disappear
Except condensation, because humidity can reduce after generating condensation, and make in-cabinet temperature for a long time in the case that moisture content in cabinet is constant
It is excessively high, equipment accelerated ageing in cabinet can be made.Therefore, it is necessary to research and develop a kind of switchgear condensation-preventing device just to seem especially urgent.
A kind of anti-condensation switch cabinet of disclosure of the invention that application publication number is CN 108039656 A, including cabinet body, cabinet body
On be provided with several ventilation openings, be provided with dehumidifying ventilation device in ventilation opening, dehumidifying ventilation device includes barrel-type casing, shell one
End is separated into several cavitys by partition, and several cavity both ends are provided with mesh inner equipped with heating wire and filled with silica dehydrator
Agent, housing sidewall sliding are provided with several sliding blocks, and sliding block is equipped with the cover board for closing cavity cover, is equipped with motor in shell,
Fan and several first belt pulleys are connected on motor output shaft, several first belt pulleys are logical with several second belt pulleys respectively
Belt transmission connection is crossed, is provided on shell and passes through deceleration with the one-to-one shaft of several cover boards, the second belt pulley and shaft
Mechanism driving, shaft are provided with the first inclined-plane close to one end of cover board, the second inclined-plane are provided on cover board, between sliding block and shell
It is provided with tension spring, is provided on cover board and conductive contact blade.This kind of anti-condensation switch cabinet can prevent condensation and from maintenance.However,
The invention is anti-condensation using traditional heating method progress, and this method can not judge the condensation of the big generation of cabinet internal-external temperature difference, lead
Cause can not eliminate condensation.Because in the case that moisture content in cabinet is constant, humidity can be reduced after generating condensation.And make for a long time
In-cabinet temperature is excessively high, can make equipment accelerated ageing in cabinet.
The solar energy for disclosing a kind of switchgear application No. is the Chinese invention patent application of CN104682222A is anti-condensation
Device, the solar energy condensation-preventing device of the switchgear include: solar panel (20), are arranged at the top of switchgear (10)；
Battery is connect with solar panel (20), and battery stores the electric energy of solar panel (20) conversion；Electric heater
(30), it is arranged on switchgear (10)；Inverter is electrically connected with battery and electric heater (30), and inverter is by battery
DC conversion at alternating current needed for electric heater (30).The technical solution of the invention efficiently solves in the prior art
The big problem of anti-condensation heating device electricity consumption.However, the switchgear is still prevented using traditional electric-heating-wire-heating method
Condensation.
Summary of the invention
In view of this, in view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of anti-condensation intelligence inspections of switchgear
Control system is surveyed, is on the one hand capable of providing chill item of the temperature lower than electrical equipment surface temperature in switchgear so that condensation is existing
As preferentially occurring on chill surface, and the droplet of condensation is dropped into the container equipped with desiccant along chill item, is subtracted significantly
The probability of condensation occurs in the small cabinet that opens the light on electrical equipment, it on the other hand can be using the intracorporal drier of cabinet to electrical equipment
It is dried, to further avoid that dew condensation phenomenon occurs on electrical equipment.
In order to achieve the above objectives, the invention adopts the following technical scheme:
Insulating layer, the cabinet is arranged in a kind of anti-condensation intelligent detection and control system of switchgear, including cabinet body, the cabinet body outer surface
It is provided with condensation generating mechanism on the inner wall of body, the first temperature sensor, setting in the cabinet body are set on the cabinet body inner wall
For detecting the dew point hygrometer of inner air dew-point temperature, the intracorporal electrical equipment outer surface setting second temperature of cabinet is sensed
Device, the interior drier being arranged for electrical equipment to be dried of the cabinet body, the cabinet body is interior to be arranged PLC controller, institute
State PLC controller and first temperature sensor, dew point hygrometer, second temperature sensor, condensation generating mechanism and drier
Signal connection；
The condensation generating mechanism includes the horizontal transverse groove being provided at left and right sides of the cabinet body below inner wall, in the cabinet body
A plurality of vertical slot is offered vertically on wall and positioned at the transverse groove top position, the cross on the inner wall of described cabinet body the same side
The lower part on top and vertical slot to slot is connected, and temperature is provided in the vertical slot lower than the intracorporal electrical equipment of the cabinet
The chill item of surface temperature is provided with the semiconductor refrigerating for cooling down to the chill item between the chill item and vertical slot
Piece, the semiconductor chilling plate are connect with the PLC controller signal, and the chill lower end has corner, the chill
Hydrophobic layer is arranged in outer surface, the internal strip container that desiccant is housed of setting, the strip container in the transverse groove
On be provided with horn mouth for accepting the droplet flowed down by chill lower end corner.
Further, the drier includes that the automatic lifting bar that the cabinet body inside bottom is arranged in and inside are equipped with
The air accumulator of dry compressed air, the automatic lifting of the automatic lifting bar and the automatic deflation of the air accumulator are by institute
PLC controller control is stated, cross bar is arranged in automatic lifting bar upper end, and the blind of upper end closed is vertically arranged in the cross bar front end
It manages, one row's air nozzle is set along its length with the facing side of the intracorporal electrical equipment of the cabinet on the blind pipe, it is described blind
The lower ending opening of pipe is connected by pipeline with the gas outlet electromagnetic valve of the air accumulator.
Further, the quantity of the vertical slot is 2-8 item.
Further, the automatic lifting bar be electric lifting rod, Pneumatic lifting arm or hydraulic lifting arm,
Further, waterproof layer is set outside the insulating layer.
Further, heater is set in the cabinet body, and the heater and the PLC controller signal interconnect.
Further, component and its content that the waterproof layer includes are as follows: polyaniline 15-20 parts by weight, polymethyl
Sour methyl esters 2-5 parts by weight, chloroform 6-10 parts by weight, N,N-dimethylformamide 40-52 parts by weight, sodium metasilicate 15.2-
18.5 parts by weight, lauryl sodium sulfate 2.5-3.6 parts by weight, nano silica 7-11 parts by weight, waterproofing agent 5.8-6.6 weight
Measure part, heat-resistant agent 3.5-4.3 parts by weight, corrosion-resistant agent 8.7-9.5 parts by weight, acetone 22-28 parts by weight, deionized water 46-55
Parts by weight.
Further, the waterproofing agent is one or both of sodium methyl silicate or calcium stearate；
The waterproofing agent is the mixture of sodium methyl silicate and calcium stearate, weight ratio sodium methyl silicate: calcium stearate 7:3；
The corrosion-resistant agent is one of hexa, cinnamic acid, poly-aspartate or a variety of.
Further, the corrosion-resistant agent is the mixture of hexa, cinnamic acid and poly-aspartate, weight ratio
Hexa: cinnamic acid: poly-aspartate 2:3:5.
Further, the heat-resistant agent is one of N-phenylmaleimide or Dacthal
Or two kinds.
Further, the heat-resistant agent is the mixing of N-phenylmaleimide and Dacthal
Object, weight ratio N-phenylmaleimide: Dacthal 4:6.
The beneficial effects of the present invention are:
The current switchgear of the present invention is anti-condensation using traditional heating method progress, and this method coagulates the big generation of cabinet internal-external temperature difference
Dew can not judge, lead to not the problem of eliminating condensation, provide a kind of anti-condensation intelligent detection and control system of switchgear, including cabinet
Body, cabinet body outer surface are arranged insulating layer, are provided with condensation generating mechanism on the inner wall of cabinet body, the first temperature is arranged on cabinet body inner wall
Sensor, the interior dew point hygrometer being arranged for detecting inner air dew-point temperature of cabinet body, the intracorporal electrical equipment outer surface setting of cabinet
Second temperature sensor, the interior drier being arranged for electrical equipment to be dried of cabinet body, the interior setting PLC of cabinet body are controlled
Device, PLC controller and the first temperature sensor, dew point hygrometer, second temperature sensor, condensation generating mechanism and drier signal
Connection.
Wherein, condensation generating mechanism includes the horizontal transverse groove being provided at left and right sides of cabinet body below inner wall, cabinet body inner wall
A plurality of vertical slot above and positioned at transverse groove top position is offered vertically, the top of the transverse groove on the inner wall of cabinet body the same side
It is connected with the lower part of vertical slot, the chill item that temperature is lower than the intracorporal electrical equipment surface temperature of cabinet is provided in vertical slot,
The semiconductor chilling plate for cooling down to chill item is provided between chill item and vertical slot, semiconductor chilling plate and PLC are controlled
The connection of device signal, chill lower end have corner, and hydrophobic layer is arranged in chill outer surface, and setting is internal equipped with dry in transverse groove
The strip container of drying prescription is provided with the loudspeaker for accepting the droplet flowed down by chill lower end corner on strip container
Mouthful.
The present invention with the above structure, when in the cabinet body that dew point hygrometer detects dew-point temperature be higher than second temperature sensor
When the electrical equipment surface temperature detected, it on the one hand can start semiconductor chilling plate and be cooled down to chill item so that chill
Surface temperature is lower than electrical equipment surface temperature, so that dew condensation phenomenon preferentially occurs on chill surface, to reduce cabinet
Moisture in internal air, on the other hand can be dried electrical equipment surface by drier, to further drop
Low electrical equipment surface generates the possibility of dew condensation phenomenon, while condensing in the droplet on chill item can be sliding along hydrophobic layer surface
The strip container that desiccant is pretended in underlying inside is fallen into, due to there was only small horn mouth on strip container to permit
Perhaps droplet instills, internal desiccant and air contact area very little, so as to effectively droplet be avoided to evaporate into sky again
In gas.
In addition, drier includes the automatic lifting bar and the internal compression sky equipped with drying that cabinet body inside bottom is arranged in
The air accumulator of gas, the automatic lifting of automatic lifting bar and the automatic deflation of air accumulator are controlled by PLC controller, automatic lifting
Cross bar is arranged in bar upper end, and cross bar front end is vertically arranged the blind pipe of upper end closed, practises physiognomy on blind pipe with the intracorporal electrical equipment of cabinet
Side is arranged along its length row's air nozzle, the lower ending opening of blind pipe passes through the gas outlet electromagnetic valve of pipeline and air accumulator
Be connected, drier after adopting the above structure, when the intracorporal electrical equipment appearance temperature of cabinet that second temperature sensor detects
When degree is lower than the dew-point temperature that dew point hygrometer detects, the gas outlet electromagnetic valve of air accumulator is opened, dry compressed air is blown
It penetrates on electrical equipment surface to carry out removal moisture drying, avoids that dew condensation phenomenon occurs on electrical equipment surface, in addition to making
Air nozzle on blind pipe can carry out removal moisture drying to electrical equipment to maximum magnitude, can pass through the lifting belt of automatic lifting bar
Dynamic air nozzle moves up and down.
Waterproof layer in the present invention prepares corrosion-resistant, water-fast composite coating material as primary raw material using polyaniline, sodium metasilicate
Material.Polyaniline has good antiseptic property, is passivated metal, the oxide layer to shield is formed in metal surface, and apply
Covering suitable coating can cause corrosion potential to migrate, to reduce corrosion of metal rate.And because it is easy to get with raw material,
Many advantages, such as synthesizing simple, pollution-free, light weight, and it is considered as the environmentally acceptable high-efficency anticorrosive paint of a new generation.This
Invention is blended using chloroform and n,N-Dimethylformamide and is used as organic solvent, and the dissolubility of polyaniline is increased.Poly- methyl
Methyl acrylate and sodium metasilicate and polyaniline act synergistically, and the adhesive force of reinforcing material solves pure polyaniline and glues to metal
The very poor problem of knot property.Sodium metasilicate has many advantages, such as that cohesive force is strong, intensity is higher, wear-resisting, acid resistance, heat-resist, dodecane
Base sodium sulphate enhances the stability of system as surfactant.
Wherein, waterproofing agent enhances hydrophobicity, improves the impervious moisture protection of material, and corrosion-resistant agent improves material resistance to acid and alkali
Can, enhance chemical stability, extends the service life of material.Heat-resistant agent can accelerate crystalline rate, increase crystal density and promote
Fine grain size significantly improves the heat distortion temperature of coating.Antirust agent can form on parts surface and store one layer of profit
Synovial membrane, can inhibit corrosion caused by moisture and many other chemical analysis, and acetone is organic solvent.
Waterproof layer in the present invention is organically combined by a variety of materials, is played electric power made from the synergistic effect of each component and is set
Standby dedicated composite coating material, mechanical performance and excellent insulating property, water-fast, high-low temperature resistant, resistant to chemical etching, adhesive force
By force, antirust can keep stability, can use for a long time in high and low temperature environment, comprehensive performance is excellent for a long time in acid or alkali environment
It is different.The composite coating material can power equipment surface formed one layer of fine and close protective film, it is etch-proof simultaneously, stop or prolong
The invasion of slow moisture, oxygen and other impurity, plays the effect of antirust, extends the service life of power equipment.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by written explanation
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
Detailed description of the invention
Fig. 1 is structure of the main view of the invention；
Fig. 2 is structure left view schematic diagram of the invention；
Fig. 3 is the structural schematic diagram of strip container in the present invention；
Fig. 4 is partial enlargement diagram at A in Fig. 1.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
Attached drawing 1 to 4, the technical solution of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on described the embodiment of the present invention, this field is common
Technical staff's every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment one
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the anti-condensation intelligent detection and control system of a kind of switchgear, including cabinet body 1, the cabinet
Insulating layer 2 is arranged in 1 outer surface of body, is provided with condensation generating mechanism on the inner wall of the cabinet body 1, is arranged on 1 inner wall of cabinet body
First temperature sensor 3, is arranged the dew point hygrometer 4 for detecting inner air dew-point temperature in the cabinet body 1, in the cabinet body 1
Electrical equipment outer surface second temperature sensor 5 is set, setting is dry for electrical equipment to be dried in the cabinet body 1
Dry mechanism, is arranged PLC controller 6 in the cabinet body 1, the PLC controller 6 and first temperature sensor 3, dew point hygrometer 4,
Second temperature sensor 5, condensation generating mechanism are connected with drier signal.
The condensation generating mechanism includes the horizontal transverse groove 7 being provided with below 1 left and right sides inner wall of cabinet body, described
A plurality of vertical slot 8 is offered vertically on 1 inner wall of cabinet body and positioned at 7 top position of transverse groove, is located at described 1 the same side of cabinet body
The top of transverse groove 7 on inner wall is connected with the lower part of vertical slot 8, and temperature is provided in the vertical slot 8 lower than the cabinet
The chill item 9 of electrical equipment surface temperature in body 1 is provided between the chill item 9 and vertical slot 8 for the chill
The semiconductor chilling plate 10 that item 9 cools down, the semiconductor chilling plate 10 are connect with 6 signal of PLC controller, the chill item
9 lower ends have corner 11, and hydrophobic layer 12 is arranged in 9 outer surface of chill item, and setting is internal in the transverse groove 7 is equipped with drying
The strip container 13 of agent is provided on the strip container 13 and to be flowed down for accepting by chill lower end corner 11
The horn mouth 14 of droplet.
The drier includes the automatic lifting bar 15 that 1 inside bottom of cabinet body is arranged in and inside equipped with dry
The air accumulator 16 of compressed air, the automatic lifting of the automatic lifting bar 15 and the automatic deflation of the air accumulator 16 are by institute
The control of PLC controller 6 is stated, cross bar 17 is arranged in 15 upper end of automatic lifting bar, and upper end is vertically arranged in 17 front end of cross bar
A row is arranged with the facing side of electrical equipment in the cabinet body 1 on the blind pipe 18 in closed blind pipe 18 along its length
The lower ending opening of air nozzle 19, the blind pipe 18 is connected by pipeline with the gas outlet electromagnetic valve 20 of the air accumulator 16.
The quantity of the vertical slot 8 is 4.
The automatic lifting bar 15 is electric lifting rod.
Waterproof layer 21 is set outside the insulating layer 2.
Heater 22 is set in the cabinet body 1, and the heater 22 is interconnected with 6 signal of PLC controller.
The component and its content that the waterproof layer 21 includes are as follows: 15 parts by weight of polyaniline, 2 weight of polymethyl methacrylate
Part, 6 parts by weight of chloroform, 40 parts by weight of n,N-Dimethylformamide, 15.2 parts by weight of sodium metasilicate, lauryl sodium sulfate
2.5 parts by weight, 7 parts by weight of nano silica, 5.8 parts by weight of sodium methyl silicate, 3.5 parts by weight of N-phenylmaleimide,
8.7 parts by weight of hexa, 22 parts by weight of acetone, 46 parts by weight of deionized water.
In the embodiment, a kind of anti-condensation intelligent detection and control system of switchgear is provided, including cabinet body, cabinet body outer surface are set
Insulating layer is set, condensation generating mechanism is provided on the inner wall of cabinet body, the first temperature sensor is set on cabinet body inner wall, is set in cabinet body
The dew point hygrometer for detecting inner air dew-point temperature is set, second temperature sensor is arranged in the intracorporal electrical equipment outer surface of cabinet,
Drier for electrical equipment to be dried is set in cabinet body, PLC controller is set in cabinet body, PLC controller and the
One temperature sensor, dew point hygrometer, second temperature sensor, condensation generating mechanism are connected with drier signal.
Wherein, condensation generating mechanism includes the horizontal transverse groove being provided at left and right sides of cabinet body below inner wall, cabinet body inner wall
A plurality of vertical slot above and positioned at transverse groove top position is offered vertically, the top of the transverse groove on the inner wall of cabinet body the same side
It is connected with the lower part of vertical slot, the chill item that temperature is lower than the intracorporal electrical equipment surface temperature of cabinet is provided in vertical slot,
The semiconductor chilling plate for cooling down to chill item is provided between chill item and vertical slot, semiconductor chilling plate and PLC are controlled
The connection of device signal, chill lower end have corner, and hydrophobic layer is arranged in chill outer surface, and setting is internal equipped with dry in transverse groove
The strip container of drying prescription is provided with the loudspeaker for accepting the droplet flowed down by chill lower end corner on strip container
Mouthful.
The present invention with the above structure, when in the cabinet body that dew point hygrometer detects dew-point temperature be higher than second temperature sensor
When the electrical equipment surface temperature detected, it on the one hand can start semiconductor chilling plate and be cooled down to chill item so that chill
Surface temperature is lower than electrical equipment surface temperature, so that dew condensation phenomenon preferentially occurs on chill surface, to reduce cabinet
Moisture in internal air, on the other hand can be dried electrical equipment surface by drier, to further drop
Low electrical equipment surface generates the possibility of dew condensation phenomenon, while condensing in the droplet on chill item can be sliding along hydrophobic layer surface
The strip container that desiccant is pretended in underlying inside is fallen into, due to there was only small horn mouth on strip container to permit
Perhaps droplet instills, internal desiccant and air contact area very little, so as to effectively droplet be avoided to evaporate into sky again
In gas.
In addition, drier includes the automatic lifting bar and the internal compression sky equipped with drying that cabinet body inside bottom is arranged in
The air accumulator of gas, the automatic lifting of automatic lifting bar and the automatic deflation of air accumulator are controlled by PLC controller, automatic lifting
Cross bar is arranged in bar upper end, and cross bar front end is vertically arranged the blind pipe of upper end closed, practises physiognomy on blind pipe with the intracorporal electrical equipment of cabinet
Side is arranged along its length row's air nozzle, the lower ending opening of blind pipe passes through the gas outlet electromagnetic valve of pipeline and air accumulator
Be connected, drier after adopting the above structure, when the intracorporal electrical equipment appearance temperature of cabinet that second temperature sensor detects
When degree is lower than the dew-point temperature that dew point hygrometer detects, the gas outlet electromagnetic valve of air accumulator is opened, dry compressed air is blown
It penetrates on electrical equipment surface to carry out removal moisture drying, avoids that dew condensation phenomenon occurs on electrical equipment surface, in addition to making
Air nozzle on blind pipe can carry out removal moisture drying to electrical equipment to maximum magnitude, can pass through the lifting belt of automatic lifting bar
Dynamic air nozzle moves up and down.
In addition, the quantity of vertical slot is 4, it is clear that according to the width of cabinet body size and vertical slot so that being located at perpendicular
Chill piece into slot can play the effect of condensation, and the quantity of vertical slot is also an option that other quantity, such as 2,3,5
Item, 6,7 or 8 etc.；In addition, the selection of automatic lifting bar is electric lifting rod, it is clear that risen automatically using other types
Bar drops, for example Pneumatic lifting arm or hydraulic lifting arm can equally play same effect.
Embodiment two
The difference of itself and embodiment one is: the component and its content that the waterproof layer 21 includes are as follows: 16 parts by weight of polyaniline are gathered
2.5 parts by weight of methyl methacrylate, 7 parts by weight of chloroform, 42 parts by weight of n,N-Dimethylformamide, 16 weight of sodium metasilicate
Part, 2.8 parts by weight of lauryl sodium sulfate, 8 parts by weight of nano silica, 6 parts by weight of sodium methyl silicate, four chloros are to benzene two
3.7 parts by weight of formic acid dimethyl ester, 8.9 parts by weight of cinnamic acid, 23 parts by weight of acetone, 48 parts by weight of deionized water.
Embodiment three
The difference of itself and embodiment one is: the component and its content that the waterproof layer 21 includes are as follows: 17 parts by weight of polyaniline are gathered
3 parts by weight of methyl methacrylate, 7.5 parts by weight of chloroform, 44 parts by weight of n,N-Dimethylformamide, 16.5 weight of sodium metasilicate
Part, 3 parts by weight of lauryl sodium sulfate, 9 parts by weight of nano silica, 6.1 parts by weight of calcium stearate, four chloros are measured to benzene two
3.9 parts by weight of formic acid dimethyl ester, 9 parts by weight of poly-aspartate, 24 parts by weight of acetone, 50 parts by weight of deionized water.
Example IV
The difference of itself and embodiment one is: the component and its content that the waterproof layer 21 includes are as follows: 18 parts by weight of polyaniline are gathered
4 parts by weight of methyl methacrylate, 8 parts by weight of chloroform, 48 parts by weight of n,N-Dimethylformamide, 17 weight of sodium metasilicate
Part, 3.2 parts by weight of lauryl sodium sulfate, 10 parts by weight of nano silica, 6.2 parts by weight of waterproofing agent, 4 weight of heat-resistant agent
Part, 9.2 parts by weight of corrosion-resistant agent, 25 parts by weight of acetone, 52 parts by weight of deionized water.
The waterproofing agent is the mixture of sodium methyl silicate and calcium stearate, and weight ratio sodium methyl silicate: calcium stearate is
7:3。
The corrosion-resistant agent is the mixture of hexa, cinnamic acid and poly-aspartate, weight ratio hexa-methylene
Tetramine: cinnamic acid: poly-aspartate 2:3:5.
The heat-resistant agent is the mixture of N-phenylmaleimide and Dacthal, weight ratio N-
Phenyl maleimide: Dacthal 4:6.
Embodiment five
The difference of itself and embodiment one is: the component and its content that the waterproof layer 21 includes are as follows: 19 parts by weight of polyaniline are gathered
4 parts by weight of methyl methacrylate, 9 parts by weight of chloroform, 50 parts by weight of n,N-Dimethylformamide, 18 weight of sodium metasilicate
Part, 3.4 parts by weight of lauryl sodium sulfate, 11 parts by weight of nano silica, 6.4 parts by weight of waterproofing agent, 4.2 weight of heat-resistant agent
Part, 9.3 parts by weight of corrosion-resistant agent, 26 parts by weight of acetone, 54 parts by weight of deionized water.
The waterproofing agent is sodium methyl silicate.
The corrosion-resistant agent is the mixture of hexa, cinnamic acid and poly-aspartate, weight ratio hexa-methylene
Tetramine: cinnamic acid: poly-aspartate 2:3:5.
The heat-resistant agent is the mixture of N-phenylmaleimide and Dacthal, weight ratio N-
Phenyl maleimide: Dacthal 4:6.
Embodiment six
The difference of itself and embodiment one is: the component and its content that the waterproof layer 21 includes are as follows: 20 parts by weight of polyaniline are gathered
5 parts by weight of methyl methacrylate, 10 parts by weight of chloroform, 52 parts by weight of n,N-Dimethylformamide, 18.5 weight of sodium metasilicate
Measure part, 3.6 parts by weight of lauryl sodium sulfate, 11 parts by weight of nano silica, 6.6 parts by weight of waterproofing agent, 4.3 weight of heat-resistant agent
Measure part, 9.5 parts by weight of corrosion-resistant agent, 28 parts by weight of acetone, 55 parts by weight of deionized water.
The waterproofing agent is the mixture of sodium methyl silicate and calcium stearate, and weight ratio sodium methyl silicate: calcium stearate is
7:3。
The corrosion-resistant agent is the mixture of hexa, cinnamic acid and poly-aspartate, weight ratio hexa-methylene
Tetramine: cinnamic acid: poly-aspartate 2:3:5.
The heat-resistant agent is Dacthal.
Comparative example one
With embodiment two, but unlike embodiment two, which does not add the component and its content that the waterproof layer includes
Add waterproofing agent and heat-resistant agent.
Comparative example two
With embodiment three, but unlike embodiment three, which does not add the component and its content that the waterproof layer includes
Add corrosion-resistant agent.
Comparative example three
With embodiment five, but unlike embodiment five, which will not the component and its content that the waterproof layer includes
Target product shakes in bottle swingging machine.
Performance test:
1) measuring mechanical property
In actual application, the mechanical performance of coating material is to measure the important performance assessment criteria of its durability.Coating is because matching
Square component ratio is different, and mechanical performance has certain difference.
It is poured into deployed mixed liquor into mold, obtains coating sample after solidifying at room temperature.Its specification are as follows: a length of 30
Mm, wide lO mm, with a thickness of 100 μm.Stress-strain test is carried out to paint layer using U.S.'s Mei Tesi CMT5305 universal testing machine,
Strain rate is 10mm/min.
Tensile strength is sample when being pulled off on puller system, and the load born on unit cross-sectional area uses N/mm2It indicates,
Calculation formula is as shown in 1-1:
P=F/S (1-1)
In formula:
The tensile strength of mono- sample of P, N/mm2；
Power suffered on rupture cross section, N when F- sample fracture；
The area in S- sample fracture face, mm2。
Wherein, 1MPa=1N/mm2
Elongation at break is the ratio of the elongation and raw footage when sample is pulled off, and is expressed as a percentage, calculation formula such as 1-2 institute
Show:
E=(L1-L0)/L0 (1-2)
In formula:
Mono- elongation at break of E, %；
L0One sample raw footage, mm；
L1The length of part of the force, mm when-sample fracture.
2) water resistance test
It takes coating mixed liquor 30g in glass culture dish, spontaneously dries, film is made.Using the water-fast of water absorption rate characterization film
Property, film is cut into the square sample of 15mm × 15mm, weighs sample mass (being accurate to 0.001g).It puts it into and is equipped with
In the culture dish of distilled water, distilled water did not had the upper surface of film, impregnates take out afterwards for 24 hours at room temperature.It is gently wiped with filter paper
Fall the moisture of film surface, and weighs immediately.According to formula 2-1, the water absorption rate of film is calculated, each sample testing 3 times is made even
Mean value.
W=(m1-m0)/m0× 100% (2-1)
In formula, the water absorption rate of W- film, %；
m0The initial mass of sample, g；
m1Quality after sample water suction, g.
3) corrosion-resistant test
Three clean beakers are taken, the hydrochloric acid of 10% concentration, the NaOH solution of 10% concentration is prepared respectively, coating sample is soaked respectively
Enter in two kinds of prepared solution, after being kept for sealed environment 45 days, takes out the corrosion condition of coating sample observation film surface.
4) adhesive force is tested
Adhesive force test utilizes cross-hatching, is to coat on galvanized sheet iron to ground according to ISO2409 and GB/19286-98 standard
With a thickness of 121-250 μm of testing coating, well stroke lattice are carried out to coating sample, sweep off surface impurity, gently later with adhesive tape
It is intermediate to be placed in parallel with scribing line lattice, cutting part state is checked then to open adhesive tape close to 60 ° of angles with hand levelling glue band.
5) long-term height temperature stability
The coating of 1000mg/L is respectively configured, respectively 200mL is taken to be respectively placed in ageing can, constant temperature is placed at -50 DEG C by its elder generation
90 days, then constant temperature was placed 90 days at 100 DEG C, measured its interfacial tension with surface tension instrument, and calculated interfacial tension growth
Rate investigates the height temperature stability of coating.
The Measurement results such as table 1 of embodiment one to six and comparative example one to three:
The test result of table 1 embodiment and comparative example
As can be seen from Table 1: 1) embodiment one to six shows good comprehensive performance: having excellent mechanical performance, draws
Intensity is stretched in 21.6MPa or more, and elongation at break is 115% or more, and water-fast, resistant to chemical etching, adhesive force is strong, in high/low temperature ring
Under border, performance is stablized.2) embodiment one to three is a kind of single substance using heat-resistant agent, waterproofing agent and corrosion-resistant agent, real
Example four to six is applied, uses heat-resistant agent, waterproofing agent and corrosion-resistant agent for the mixture of two or three of substance, example IV to six materials
The comprehensive performance of material is better than embodiment one to three；3) comparative example one lacks waterproofing agent and heat-resistant agent compared with embodiment two；It is right
Ratio two lacks corrosion-resistant agent compared with embodiment three；The performance of the material of comparative example one to three is poorer than embodiment one to six.It is anti-
Aqua, heat-resistant agent, corrosive agent, these additives, in addition to improve material characteristic property other than, also with polyaniline, nano-silica
SiClx and sodium metasilicate synergistic effect, the comprehensive performance of reinforcing material.Target product obtained is shaken in bottle swingging machine, promotes to divide
Being uniformly distributed between son, performance is more stable.Illustrate to be complementary between each raw material, lacks any raw material, material
Performance will be decreased obviously.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, this field is common
Other modifications or equivalent replacement that technical staff makes technical solution of the present invention, without departing from technical solution of the present invention
Spirit and scope, be intended to be within the scope of the claims of the invention.
Claims (6)
1. a kind of anti-condensation intelligent detection and control system of switchgear, including cabinet body, insulating layer is arranged in the cabinet body outer surface, special
Sign is: being provided with condensation generating mechanism on the inner wall of the cabinet body, the first temperature sensor, institute are arranged on the cabinet body inner wall
State dew point hygrometer be arranged in cabinet body for detecting inner air dew-point temperature, the intracorporal electrical equipment outer surface of cabinet is arranged the
Two temperature sensors, the interior drier being arranged for electrical equipment to be dried of the cabinet body, the cabinet body is interior to be arranged PLC
Controller, the PLC controller and first temperature sensor, dew point hygrometer, second temperature sensor, condensation generating mechanism and
The connection of drier signal；
The condensation generating mechanism includes the horizontal transverse groove being provided at left and right sides of the cabinet body below inner wall, in the cabinet body
A plurality of vertical slot is offered vertically on wall and positioned at the transverse groove top position, the cross on the inner wall of described cabinet body the same side
The lower part on top and vertical slot to slot is connected, and temperature is provided in the vertical slot lower than the intracorporal electrical equipment of the cabinet
The chill item of surface temperature is provided with the semiconductor refrigerating for cooling down to the chill item between the chill item and vertical slot
Piece, the semiconductor chilling plate are connect with the PLC controller signal, and the chill lower end has corner, the chill
Hydrophobic layer is arranged in outer surface, the internal strip container that desiccant is housed of setting, the strip container in the transverse groove
On be provided with horn mouth for accepting the droplet flowed down by chill lower end corner.
2. the anti-condensation intelligent detection and control system of a kind of switchgear according to claim 1, it is characterised in that: the drying
Mechanism includes the automatic lifting bar and the internal air accumulator equipped with dry compressed air that the cabinet body inside bottom is arranged in, institute
The automatic deflation of the automatic lifting and the air accumulator of stating automatic lifting bar is controlled by the PLC controller, described automatic
Cross bar is arranged in elevating lever upper end, and the cross bar front end is vertically arranged the blind pipe of upper end closed, on the blind pipe with the cabinet body
Row's air nozzle is arranged in the facing side of interior electrical equipment along its length, and the lower ending opening of the blind pipe passes through pipeline and institute
The gas outlet electromagnetic valve for stating air accumulator is connected.
3. the anti-condensation intelligent detection and control system of a kind of switchgear according to claim 2, it is characterised in that: described vertical
The quantity of slot is 2-8 item.
4. the anti-condensation intelligent detection and control system of a kind of switchgear according to claim 3, it is characterised in that: described automatic
Elevating lever is electric lifting rod, Pneumatic lifting arm or hydraulic lifting arm.
5. the anti-condensation intelligent detection and control system of a kind of switchgear according to claim 4, it is characterised in that: the heat preservation
Layer is external to be arranged waterproof layer.
6. the anti-condensation intelligent detection and control system of a kind of switchgear according to claim 1-5, it is characterised in that:
Heater is set in the cabinet body, and the heater and the PLC controller signal interconnect.
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