CN105674436A - Low-dew-point positive pressure air supply system and dehumidification method for high-voltage cabinet - Google Patents
Low-dew-point positive pressure air supply system and dehumidification method for high-voltage cabinet Download PDFInfo
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- CN105674436A CN105674436A CN201610070902.1A CN201610070902A CN105674436A CN 105674436 A CN105674436 A CN 105674436A CN 201610070902 A CN201610070902 A CN 201610070902A CN 105674436 A CN105674436 A CN 105674436A
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- air
- high pressure
- pressure tank
- outside
- dehumidifying
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
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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
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F2003/1458—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification using regenerators
Abstract
The invention relates to a low-dew-point positive pressure air supply system and a dehumidification method for a high-voltage cabinet. The low-dew-point positive pressure air supply system comprises a filter, a rotary dehumidifier and a cooler. The filter is mounted in a ventilating duct. The rotary dehumidifier is connected with the filter by virtue of the ventilating duct. The cooler is used for cooling external air transported from the outside. When the external air temperature is higher than 18-20 DEG C, the cooler is started, and the external air is processed by the compression type cooler after being filtered by the filtering part, so that the external air temperature is reduced to 14-16 DEG C, and the external air is sent to the rotary dehumidifier to be dehumidified. The rotary dehumidifier is used for continuously absorbing moisture in the high-voltage cabinet and converting the moisture in the high-voltage cabinet into wet air to be discharged from the high-voltage cabinet in a high-pressure chamber, and continuously transporting dry air obtained after dehumidification and heating in the high-voltage cabinet, so as to achieve the purpose of continuously dehumidifying the high-voltage cabinet. The moisture content of air in the high-voltage cabinet is reduced, so that the air humidity and the dew-point temperature in the high-voltage cabinet are reduced, the condensation is avoided, and the conditions that the pressure of air in the high-voltage cabinet is positive pressure relative to that of air outside the high-voltage cabinet, and no dead corners are generated in the high-voltage cabinet are ensured.
Description
Technical field
What the present invention relates to is high-voltage electrical cabinet dehumanization method and exhaust system field thereof, and what be specifically related to is a kind of low dew point malleation supply air system of high pressure tank and dehumanization method thereof.
Background technology
Present stage, high-voltage electrical cabinet drying method was various, have and in pressurizing chamber, install dehumidifier additional, there is heating and dehumidification device in traditional cabinet, there is semiconductor demoistener, but effect is all not obvious, because merely relying in high pressure tank outside atmosphere and pressurizing chamber and installing dehumidifying additional, or in high pressure tank, place well heater, or according to peltier effect, use special thermoelectric semiconductor material, manufacture semiconductor cooler to dehumidify, fact proved that aforesaid method all can not effectively stop moisture mistake in high pressure tank, form solidifying dew.
Solve that switching cabinet humidity is too high and the problem of solidifying dew, only a large amount of for the water vapour in air in cabinet are discharged to outside cabinet, and make the operational outfit in cabinet continue to remain in a relatively stable environment, could fundamentally solve this problem like this, therefore need to be badly in need of a kind of dehumidification system that can be discharged in a large number by the water vapour in high pressure tank and method thereof, in the cabinet avoiding high pressure tank internal cause to produce solidifying dew and to cause, the equipment insulation strength that especially bus is arranged reduces, and then avoid the accident of insulation part dielectric surface flashover or the switch blast occurred, and seriously have impact on its safe and stable operation.
Summary of the invention
For the deficiency existed in prior art, the present invention seeks to be to provide a kind of low dew point malleation supply air system of high pressure tank and dehumanization method thereof, by the malleation of the dry air of ultra-low dew point in cabinet, damp atmosphere is discharged outside cabinet by cabinet gap and pressure release passage, thoroughly reduce the moisture content of air in cabinet, thus reduce atmospheric moisture and dew-point temperature in cabinet, thus avoid the generation of solidifying dew.
In order to realize above-mentioned purpose, the present invention realizes by the following technical solutions:
A kind of low dew point malleation supply air system of high pressure tank, comprising: strainer, is arranged in the ventilator trunk for being interlinked to the outside in pressurizing chamber;
Rotary wheel dehumidifying machine, discharges outside the high pressure tank in pressurizing chamber, pressurizing chamber for the water molecules carrying out absorbing in high pressure tank continuously is converted into wet air, and is delivered in high pressure tank by the dry air after heating and dehumidification, reach the object of high pressure tank continuous dehumidifying;
Water cooler, is connected with ventilator trunk, for cooling the external air temperature transported from outside;
The air inlet end of described rotary wheel dehumidifying machine is connected with strainer with water cooler by described ventilator trunk, when external air temperature is higher than just starting water cooler when 18-20 DEG C, outside air is after filtration fraction filters, again through overdraft formula chiller treatment, make air themperature be down to 14 DEG C-16 DEG C, then deliver to rotary wheel dehumidifying machine and dehumidify;
Described rotary wheel dehumidifying machine comprises the cellular dry runner being loaded with siccative, for carrying the rear dry air of dehumidifying to the process extension set in high pressure tank, for the regenerative heater of desorb water and the regeneration blower fan for wet air being delivered to outside high pressure tank, described cellular dry runner is divided into for the dehumidifying district of absorbed air water molecules by dividing plate and discharges for water molecules being converted to wet air, and the breeding blanket of dry air is provided, described regeneration blower fan connects the wet air outlet end of breeding blanket, described regenerative heater is arranged on the dry air outlet end of breeding blanket, described siccative is arranged on dehumidifying district.
Further, described dehumidifying district is 3/4ths formation sector regions of cellular dry runner circumference, i.e. cellular dry runner 270 degree of sector regions, and cellular dry all the other sector regions of runner are breeding blanket, i.e. cellular dry runner 90 degree of sector regions.
As preferably, what described ventilator trunk adopted is stainless-steel pipe, and described ventilator trunk one end is placed in outside pressurizing chamber, and its other end is inserted bottom high pressure tank.
As preferably, described strainer is plate filter or deep bed filter, described water cooler is compression formula water cooler.
As preferably, what described cellular dry runner adopted is the honeycomb formula silica gel runner that ceramic silicon glue material is made.
A kind of dehumanization method utilizing the low dew point malleation supply air system of above-mentioned high pressure tank, its method is: when the dew-point temperature difference of the dew-point temperature that the psychrometric difference of the humidity in high pressure tank and the outer humidity of high pressure tank is less than in 5%RH or high pressure tank and the outer dew-point temperature of high pressure tank is less than 1.5 DEG C, rotary wheel dehumidifying machine carries out dehumidification operation; By outside wet air high pressure tank after rotary wheel dehumidifying machine dehumidifies, and dry air is delivered in high pressure tank;
When external air temperature is higher than starting water cooler when 18-20 DEG C, outside air is after strainer filters, then through overdraft formula chiller treatment, makes high pressure indoor air temperature be down to 14 DEG C-16 DEG C, then the air after temperature is delivered to rotary wheel dehumidifying machine and dehumidifies; By outside wet air high pressure tank after rotary wheel dehumidifying machine dehumidifies, and dry air is delivered in high pressure tank;
It is as follows that described rotary wheel dehumidifying machine carries out dehumidification operation concrete grammar:
(1) the cellular dry runner being loaded with siccative is divided into Liang Ge district by dividing plate: one is that the sector region processing air end 270 degree forms dehumidifying district; One is regeneration air end 90 degree of sector regions formation breeding blankets;
(2) absorb or adsorbed moisture in air sub-step; Cellular dry runner, in dehumidification process, constantly slowly rotates; When the dehumidifying district in process air region absorbs or adsorbed water molecules, after becoming state of saturation, breeding blanket will be automatically brought to, enter air regenesis process steps;
(3) air regenesis process steps is in regenerative process, regeneration air is after regenerative heater heats, enter cellular dry rotary wheel regeneration district covering of the fan, at high operating temperatures, cellular dry runner absorbs or the water molecules of absorption is taken off attached, is lost in regeneration air, regeneration air owing to having distributed heat in desorption process, own temperature reduces, and becomes wet air, and wet air is then drained into outside high pressure tank by regeneration blower fan.
(4) dehumidify in above-mentioned steps (2) and step (3) simultaneously and regenerate in drying process simultaneously, iterative cycles step (2) like this and step (3), reach and carry out continuous dehumidifying object, until low below the 10%RH of humidity outside psychromatic ratio high pressure tank in high pressure tank, and during lower than the outer dew point outside high pressure tank less than 3 DEG C of dew point in high pressure tank, stop dehumidification operation.
As preferably, the rotating speed of described cellular dry runner be 12-24 week/hour, energy consumption is minimum, and the water capacity of process air can lower than 0.0007g/kg.
As preferably, what described process extension set adopted is centrifugal high pressure fan, the gas pushing quantity per hour of described centrifugal high pressure fan is 8-10 times of high pressure tank volume, and all dry airs after desiccant wheel process heating are just sent in cabinet with centrifugal high pressure fan, ensure that high pressure tank is interior without dead angle. Described centrifugal high pressure fan peak pressure is 1000Pa, and peak flow is 500m3/ h, without oil.
The present invention, through the dehumidifying of rotary wheel dehumidifying machine, can remove the humidity of in air 70%, and the dew point of the outlet air of rotary wheel dehumidifying machine is lower than the dew point of inlet air 10-15 DEG C, can ensure that cabinet inner drying is without moisture, and avoid equipment to be oxidized. By uninterrupted carry in cabinet dry air (gas pushing quantity per hour be high pressure tank volume 8-10 doubly), it is malleation outside ensureing the relative cabinet of cabinet inner air pressure, even if considering the leakage of the pressure release hole on cabinet surface, the dry air sent into still can utilize gap and the hole of room, each storehouse dividing plate in cabinet, arrive switch room, second set room and bus room from the cable room of bottom, ensure in high pressure tank without dead angle. Meanwhile, damp atmosphere, by malleation in cabinet of the dry air of ultra-low dew point, is discharged outside cabinet by cabinet gap and pressure release passage by the present invention, thoroughly reduce the moisture content of air in cabinet, thus reduce atmospheric moisture in cabinet, reduce dew-point temperature, thus avoid the generation of solidifying dew.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail;
Fig. 1 is the workflow diagram of the present invention;
Fig. 2 is the dehumidification principle figure of the rotary wheel dehumidifying machine of the present invention;
Fig. 3 is the exploded view of the rotary wheel dehumidifying machine of the present invention.
Embodiment
For the present invention is realized technique means, creation characteristic, reach object and effect is easy to understand, below in conjunction with embodiment, set forth the present invention further.
See Fig. 1 to Fig. 3, the low dew point malleation supply air system of the high pressure tank of the present embodiment, it comprises the strainer being arranged in ventilator trunk and the rotary wheel dehumidifying machine that is connected by ventilator trunk with strainer and the water cooler of external air temperature transported for cooling from outside; Ventilator trunk is for being interlinked to the outside in pressurizing chamber, the air inlet end of rotary wheel dehumidifying machine is connected with strainer with water cooler by described ventilator trunk, when external air temperature is higher than just starting water cooler when 18-20 DEG C, outside air is after filtration fraction filters, again through overdraft formula chiller treatment, make air themperature be down to 14 DEG C-16 DEG C, then deliver to rotary wheel dehumidifying machine and dehumidify; The water molecules carrying out absorbing in high pressure tank continuously is converted into wet air and discharges outside the high pressure tank in pressurizing chamber, pressurizing chamber by rotary wheel dehumidifying machine, and is delivered in high pressure tank by the dry air after heating and dehumidification, reaches the object of high pressure tank continuous dehumidifying.
For component and the method thereof of detailed the present invention is specifically implemented, following the present embodiment elaborate each parts and the present embodiment working process as follows:
(1) filtration fraction;
◇ strainer is plate filter or bag formula, and filtration efficiency meets GB/T14295-93.
◇ strainer effective filtration area is big, holds dirt amount big, and resistance is little, and ventilation is big; Framework and bracing frame are all reusable, only need to change filter bag when changing strainer, and convenient and swift, greatly reduce running cost expense.
◇ filter leaching material is fire retardant-type terylene non-woven fabrics, and filtration unit adopts fast speed variator, pressure reduction to show. It is arranged on the movable frame of sealing by easy-to-dismount fixing card, avoids the air of filtered to flow through.
(2) air cooling part:
This part is the water cooler adopted is compression formula water cooler, when external air temperature is higher than just starting water cooler when 18-20 DEG C, outside air is after filtration fraction filters, again through overdraft formula chiller treatment, air themperature is made to be down to 14 DEG C-16 DEG C, delivering to rotary wheel dehumidifying machine again to dehumidify, compression formula water cooler power is 1.1KW, and refrigeration work consumption is 3.2KW.
(3) rotary wheel dehumidifying machine dehumidifying part:
In the present embodiment, rotary wheel dehumidifying machine 100 comprises the cellular dry runner 110 being loaded with siccative, for carrying the rear dry air of dehumidifying to the process extension set 120 in high pressure tank, for the regenerative heater 130 of desorb water and the regeneration blower fan 140 for wet air being delivered to outside high pressure tank, described cellular dry runner is divided into for the dehumidifying district of absorbed air water molecules by dividing plate and discharges for water molecules being converted to wet air, and the breeding blanket A of dry air is provided, described regeneration blower fan 140 connects the wet air outlet end of breeding blanket A, described regenerative heater 130 is arranged on the dry air outlet end of breeding blanket A, described siccative is arranged on dehumidifying district B.
This dehumidifying technology is that the corrugated medium made by composite heat resistance material is formed, and it being loaded with the cellular dry runner of siccative, runner when rotated, continues to repeat moisture absorption regeneration actions, do not affect air flow, the dry air of ultra-low dew point is continuously provided. Cellular dry runner is divided into Liang Ge district by the dividing plate containing high-density envelope filler: one is that the sector region processing air end 270 degree forms dehumidifying district B; One is regeneration air end 90 degree of sector regions formation breeding blanket A.
Desiccant wheel is in dehumidification process, and runner motor 111 is connected with cellular dry runner 110 by transmission belt 112, and cellular dry runner 110 drives it to run by runner motor 111 so that it is constantly slowly rotate. When processing air, the runner 270 degree of covering of the fans being positioned at dehumidifying district B absorb or have adsorbed water molecules F, after becoming state of saturation, will be automatically brought to 90 degree of covering of the fans of breeding blanket A, and enter regenerative process. In regenerative process, regeneration air M, after heating, enters rotary wheel regeneration district covering of the fan, and at high operating temperatures, cellular dry runner 110 absorbs or the water molecules that adsorbs is taken off attached, is lost in regeneration air. Regeneration air owing to having distributed heat in desorption process, and own temperature reduces, and becomes the wet air that water capacity is bigger. Wet air is then drained into outside high pressure tank by regeneration blower fan 140.
In the regenerative process of dehumidifying limit, above-mentioned limit, air constantly dehumidifies, and runner is constantly reproduced, so repeatedly, and continuous dehumidifying. The rotating speed of runner is very slow, generally with 12-24 week/hour rotational speed, energy consumption is minimum, and the water capacity of process air can lower than 0.0007g/kg.
Through the dehumidifying of rotary wheel dehumidifying machine, can removing the humidity of in air 70%, the dew point of the outlet air of rotary wheel dehumidifying machine is lower than the dew point of inlet air 10-15 DEG C.
When the humidity in high pressure tank guarantees 10%RH below lower than the humidity outside cabinet, dew point is lower than the dew point outside cabinet less than 3 DEG C, ensures never to condense in high pressure tank, and reaching above-mentioned two conditions can run by halt system; When psychrometric difference is less than 5%RH or dew-point temperature difference is less than 1.5 DEG C, system reruns work.
In the present embodiment, what cellular dry runner adopted is the cellular silica gel runner that ceramic silicon glue material is made, what this cellular silica gel runner adopted is thickness is 200mm, diameter is 450mm, there is the activated silica gel gluing rate up to 82%, water absorbability is strong, ensures the wettability power that dehumidifier runner is outstanding. High-efficient silica gel runner adds ceramic raw material with inorganic ceramic fiber to sinter honeycomb right cylinder precise cutting into and become, cellular silica gel runner is exactly an efficient absorbent body, and regeneration can reach more than 140 DEG C Heating temperatures, it is possible to processes 100% wet air and does not come off, it is not out of shape, it is possible to repeatedly clean.
The honeycomb formula silica gel runner of the present embodiment application carries out synchronous in the process of moisture absorption the sorbent material after moisture absorption carrying out regeneration processed, can be recycled, and whole absorptive work can carry out continuously; Overcoming compressor formula dehumidifier (about less than 10 DEG C just can not work) can not continuous dehumidifying and shortcoming helpless in low temperature and low humidity situation.
Under the rotary wheel dehumidifying machine of the present invention can be operated in subzero 30 DEG C of states, it is possible to continue dehumidifying work, and the dry air of ultralow humidity below 10 DEG C of dew point that cooling and dehumidifying mode cannot realize can be provided continuously; Its structure is simple, and driving part is simple, only needs desiccant wheel, regeneration heater and fan running, can obtain dry air, thus simple to operate. In addition, it belongs to dry type dehumidification type, it is not necessary to supplement moisture adsorbent, and maintenance guarantee is convenient.
In addition, under cleaning air ambient, the performance of desiccant wheel almost can not decline or degenerate, and can be competent at continuous running all the year round. Owing to adopting ceramic silicon glue material, safety in moisture absorption process, environmental protection, clean, without elegant dust and corrosion-free effect. This device can wall hanging, it is possible to keep flat, and installs mode variation.
(4) centrifugal high pressure fan air section:
In order to keep the humidity in high pressure tank to remain in low wet environment, need the uninterrupted air sending drying in high pressure tank, repeatedly test through the big minimodel of high pressure tank volume 1/10th, gas pushing quantity per hour is 8-10 times of high pressure tank volume, all dry airs after cellular dry runner process heating are just sent in cabinet with process extension set, what the process blower fan of the present embodiment adopted is centrifugal high pressure fan, ensures in high pressure tank without dead angle. This centrifugal high pressure fan peak pressure is 1000Pa, and peak flow is 500m3/ h, without oil. According to calculating, blast 1000Pa, loses 600Pa through rotary wheel dehumidifying part, then the trunking loss blast 2Pa through 1 meter, and calculates according to the pipe of 5 meters and also just lose 10Pa, and residue blast is completely satisfied continues to send dry air in high pressure tank.
(5) ventilator trunk part;
Construction process needs carry the ventilator trunk of air all to adopt stainless steel tube to add flexible pipe, along fixing each 5 meters of the 60mm stainless steel tube of base cross members, extend to both sides bottom each high pressure tank, then go out air port from the 2 of mainframe box hose connection to stainless steel tube with 40mm respectively, mainframe box can be facilitated like this to move. And respectively with the hose connection stainless steel mouth of pipe to corresponding bottom of 40mm bottom each high pressure tank, centre adds copper valve and the link of copper fastening piece, ensure to overflow without air and can control the turnover of air.
Note: go out air port when summer, dew point is 0～5 DEG C, water content < 5g/kg dry air;
During winter, dew point is-10～15 DEG C, water content < 1.68g/kg dry air.
Based on above-mentioned, the present invention, through the dehumidifying of rotary wheel dehumidifying machine, can remove the humidity of in air 70%, and the dew point of the outlet air of rotary wheel dehumidifying machine is lower than the dew point of inlet air 10-15 DEG C, can ensure that cabinet inner drying is without moisture, and avoid equipment to be oxidized. By uninterrupted carry in cabinet dry air (gas pushing quantity per hour be high pressure tank volume 8-10 doubly), it is malleation outside ensureing the relative cabinet of cabinet inner air pressure, even if considering the leakage of the pressure release hole on cabinet surface, the dry air sent into still can utilize gap and the hole of room, each storehouse dividing plate in cabinet, arrive switch room, second set room and bus room from the cable room of bottom, ensure in high pressure tank without dead angle. Meanwhile, damp atmosphere, by malleation in cabinet of the dry air of ultra-low dew point, is discharged outside cabinet by cabinet gap and pressure release passage by the present invention, thoroughly reduce the moisture content of air in cabinet, thus reduce atmospheric moisture in cabinet, reduce dew-point temperature, thus avoid the generation of solidifying dew.
More than show and describe the ultimate principle of the present invention and the advantage of main characteristic sum the present invention. The technician of the industry should understand; the present invention is not restricted to the described embodiments; the principle that the present invention is just described described in above-described embodiment and specification sheets; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention. The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (8)
1. the low dew point malleation supply air system of high pressure tank, it is characterised in that, comprising:
Strainer, is arranged in the ventilator trunk for being interlinked to the outside in pressurizing chamber;
Rotary wheel dehumidifying machine, discharges outside the high pressure tank in pressurizing chamber, pressurizing chamber for the water molecules carrying out absorbing in high pressure tank continuously is converted into wet air, and is delivered in high pressure tank by the dry air after heating and dehumidification, reach the object of high pressure tank continuous dehumidifying;
Water cooler, is connected with ventilator trunk, for cooling the external air temperature transported from outside;
The air inlet end of described rotary wheel dehumidifying machine is connected with strainer with water cooler by described ventilator trunk;
Described rotary wheel dehumidifying machine comprises the cellular dry runner being loaded with siccative, for carrying the rear dry air of dehumidifying to the process extension set in high pressure tank, for the regenerative heater of desorb water and the regeneration blower fan for wet air being delivered to outside high pressure tank, described cellular dry runner is divided into for the dehumidifying district of absorbed air water molecules by dividing plate and discharges for water molecules being converted to wet air, and the breeding blanket of dry air is provided, described regeneration blower fan connects the wet air outlet end of breeding blanket, described regenerative heater is arranged on the dry air outlet end of breeding blanket, described siccative is arranged on dehumidifying district.
2. the low dew point malleation supply air system of high pressure tank according to claim 1, it is characterized in that, described dehumidifying district is 3/4ths formation sector regions of cellular dry runner circumference, i.e. cellular dry runner 270 degree of sector regions, cellular dry all the other sector regions of runner are breeding blanket, i.e. cellular dry runner 90 degree of sector regions.
3. the low dew point malleation supply air system of high pressure tank according to claim 1, it is characterised in that, what described ventilator trunk adopted is stainless-steel pipe, and described ventilator trunk one end is placed in outside pressurizing chamber, and its other end is inserted bottom high pressure tank.
4. the low dew point malleation supply air system of high pressure tank according to claim 1, it is characterised in that, described strainer is plate filter or deep bed filter, and described water cooler is compression formula water cooler.
5. the low dew point malleation supply air system of high pressure tank according to claim 1, it is characterised in that, what described cellular dry runner adopted is the honeycomb formula silica gel runner that ceramic silicon glue material is made.
6. one kind utilizes the dehumanization method of the low dew point malleation supply air system of high pressure tank described in claim 1-5 any one, its method is: when the dew-point temperature difference of the dew-point temperature that the psychrometric difference of the humidity in high pressure tank and the outer humidity of high pressure tank is less than in 5%RH or high pressure tank and the outer dew-point temperature of high pressure tank is less than 1.5 DEG C, rotary wheel dehumidifying machine carries out dehumidification operation; By outside wet air high pressure tank after rotary wheel dehumidifying machine dehumidifies, and dry air is delivered in high pressure tank;
When external air temperature is higher than starting water cooler when 18-20 DEG C, outside air is after strainer filters, then through overdraft formula chiller treatment, makes high pressure indoor air temperature be down to 14 DEG C-16 DEG C, then the air after temperature is delivered to rotary wheel dehumidifying machine and dehumidifies; By outside wet air high pressure tank after rotary wheel dehumidifying machine dehumidifies, and dry air is delivered in high pressure tank;
It is as follows that described rotary wheel dehumidifying machine carries out dehumidification operation concrete grammar:
(1) the cellular dry runner being loaded with siccative is divided into Liang Ge district by dividing plate: one is that the sector region processing air end 270 degree forms dehumidifying district; One is regeneration air end 90 degree of sector regions formation breeding blankets;
(2) absorb or adsorbed moisture in air sub-step; Cellular dry runner, in dehumidification process, constantly slowly rotates; When the dehumidifying district in process air region absorbs or adsorbed water molecules, after becoming state of saturation, breeding blanket will be automatically brought to, enter air regenesis process steps;
(3) air regenesis process steps is in regenerative process, regeneration air is after regenerative heater heats, enter cellular dry rotary wheel regeneration district covering of the fan, at high operating temperatures, cellular dry runner absorbs or the water molecules of absorption is taken off attached, is lost in regeneration air, regeneration air owing to having distributed heat in desorption process, own temperature reduces, and becomes wet air, and wet air then drains into outside high pressure tank by regeneration blower fan;
(4) dehumidify in above-mentioned steps (2) and step (3) simultaneously and regenerate in drying process simultaneously, iterative cycles step (2) like this and step (3), reach and carry out continuous dehumidifying object, until low below the 10%RH of humidity outside psychromatic ratio high pressure tank in high pressure tank, and during lower than the outer dew point outside high pressure tank less than 3 DEG C of dew point in high pressure tank, stop dehumidification operation.
7. dehumanization method according to claim 6, it is characterised in that, the rotating speed of described cellular dry runner be 12-24 week/hour, energy consumption is minimum, and the water capacity of process air can lower than 0.0007g/kg.
8. dehumanization method according to claim 6, it is characterized in that, what described process extension set adopted is centrifugal high pressure fan, and the gas pushing quantity per hour of described centrifugal high pressure fan is 8-10 times of high pressure tank volume, described centrifugal high pressure fan peak pressure is 1000Pa, and peak flow is 500m3/h。
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| CN201610070902.1A CN105674436A (en) | 2016-02-01 | 2016-02-01 | Low-dew-point positive pressure air supply system and dehumidification method for high-voltage cabinet |
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| CN201610070902.1A CN105674436A (en) | 2016-02-01 | 2016-02-01 | Low-dew-point positive pressure air supply system and dehumidification method for high-voltage cabinet |
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| CN107817833A (en) * | 2017-10-18 | 2018-03-20 | 国网山东省电力公司曲阜市供电公司 | Dehydrating unit and system |
| CN108014608A (en) * | 2018-01-23 | 2018-05-11 | 南通中远克莱芬船舶工程有限公司 | A kind of high efficiency rotary wheel type Dehumidifier |
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| CN109990395A (en) * | 2018-01-02 | 2019-07-09 | 创昇科技股份有限公司 | Dehumidification air conditioner device |
| CN108014608A (en) * | 2018-01-23 | 2018-05-11 | 南通中远克莱芬船舶工程有限公司 | A kind of high efficiency rotary wheel type Dehumidifier |
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| CN108767711A (en) * | 2018-07-26 | 2018-11-06 | 广东电网有限责任公司 | Dehumidification device |
| CN109582068A (en) * | 2018-11-01 | 2019-04-05 | 扬州北辰电气集团有限公司 | Looped network case micro-positive pressure fresh air dehumidifying system and its control method |
| CN109687297A (en) * | 2018-11-30 | 2019-04-26 | 金华送变电工程有限公司 | A kind of ring network cabinet dehumidification device |
| CN110071429B (en) * | 2019-05-29 | 2023-07-28 | 湖北中巽泰科技有限公司 | Passive multi-interval condensation prevention control system and control method thereof |
| CN110071429A (en) * | 2019-05-29 | 2019-07-30 | 湖北中巽泰科技有限公司 | A kind of passive multi-compartment anti-condensation control system and its control method |
| CN110849111A (en) * | 2019-12-20 | 2020-02-28 | 彭华 | Positive pressure high-efficiency dehumidifying and drying system |
| CN111313250A (en) * | 2020-02-26 | 2020-06-19 | 安徽通昊电力设备有限公司 | Loss-reducing power distribution cabinet |
| CN111725708A (en) * | 2020-06-16 | 2020-09-29 | 刘泽楷 | Dustproof intelligent regulator cubicle of constant temperature and humidity |
| CN111964167A (en) * | 2020-08-10 | 2020-11-20 | 冯艳丽 | Rotary dehumidifier convenient to rotary mechanism drainage |
| CN111964167B (en) * | 2020-08-10 | 2022-04-22 | 广东英为拓科技有限公司 | Rotary dehumidifier convenient to rotary mechanism drainage |
| CN113067259A (en) * | 2021-05-13 | 2021-07-02 | 山东立尔智能科技有限公司 | Dehumidification method and device for distribution automation ring main unit |
| CN113067259B (en) * | 2021-05-13 | 2023-05-23 | 山东立尔智能科技有限公司 | Dehumidification method and device for distribution automation ring main unit |
| CN113410785A (en) * | 2021-05-31 | 2021-09-17 | 无锡东瑞电力科技有限公司 | Clean dry air exchange system of high-voltage board |
| WO2022252467A1 (en) * | 2021-06-01 | 2022-12-08 | 普沃思环保科技无锡有限公司 | Fresh air conditioning system |
| CN114253325A (en) * | 2021-12-21 | 2022-03-29 | 深圳大成智能电气科技有限公司 | Anti-condensation and temperature safety management system and anti-condensation method |
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Address after: 210000, Jiangsu, Jiangning Development Zone, Nanjing, the source of the road, No. 58, -5 Applicant after: STATE GRID JIANGSU ELECTRIC POWER Co.,Ltd. MAINTENANCE BRANCH Applicant after: State Grid Corporation of China Address before: 210000, Jiangsu, Jiangning Development Zone, Nanjing, the source of the road, No. 58, -5 Applicant before: MAINTENANCE DIVISION OF STATE GRID JIANGSU ELECTRIC POWER Co. Applicant before: State Grid Corporation of China Address after: 210000, Jiangsu, Jiangning Development Zone, Nanjing, the source of the road, No. 58, -5 Applicant after: MAINTENANCE DIVISION OF STATE GRID JIANGSU ELECTRIC POWER Co. Applicant after: State Grid Corporation of China Address before: 210000, Jiangsu, Jiangning Development Zone, Nanjing, the source of the road, No. 58, -5 Applicant before: JIANGSU ELECTRIC POWER COMPANY MAINTENANCE BRANCH Applicant before: State Grid Corporation of China |
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Application publication date: 20160615 |