CN105811275A - Rotary dehumidifier-type condensation dehumidification device for metal-clad equipment and control method of rotary dehumidifier-type condensation dehumidification device - Google Patents
Rotary dehumidifier-type condensation dehumidification device for metal-clad equipment and control method of rotary dehumidifier-type condensation dehumidification device Download PDFInfo
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- CN105811275A CN105811275A CN201610244937.2A CN201610244937A CN105811275A CN 105811275 A CN105811275 A CN 105811275A CN 201610244937 A CN201610244937 A CN 201610244937A CN 105811275 A CN105811275 A CN 105811275A
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- metal armouring
- valve
- rotary dehumidifier
- equipment
- air inlet
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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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D22/00—Control of humidity
- G05D22/02—Control of humidity characterised by the use of electric means
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Drying Of Gases (AREA)
Abstract
The invention discloses a rotary dehumidifier-type condensation dehumidification device for metal-clad equipment and a control method of the rotary dehumidifier-type condensation dehumidification device. The device comprises a rotary dehumidifier, ventilation units and an automatic condensation dehumidification controller, wherein each ventilation unit is arranged on the metal-clad equipment and is communicated with the rotary dehumidifier through an air inlet pipe and an air return pipe. The device is simple in structure and high in automatic degree; automatic long-distance control on condensation of the metal-clad equipment is achieved; the starting time of the dehumidification device is greatly shortened; the fire risk caused by overheating of the dehumidification device in each metal-clad equipment is avoided; the internal humidity control of single metal-clad equipment is relatively uniform; the humidity target value can be freely set; the phenomenon of non-uniform dehumidification in large metal-clad equipment is avoided; the dehumidification effect is good; the temperature rise in the metal-clad equipment is not caused in the dehumidification process; and the risk that an insulating material ages too fast is avoided.
Description
Technical field
The invention belongs to electrical engineering technical field, relate to rotary dehumidifier formula condensation dehydrating unit and the control method thereof of a kind of metal armouring equipment.
Background technology
Metal armouring equipment (high-tension switch cabinet, convergence control cabinet, ring main unit etc.) is when there's a sudden fall in temperature, often therein there is dew condensation phenomenon in equipment, the dielectric strength of electric original paper is substantially reduced, and short trouble occurs, this phenomenon is comparatively general in south China wet climates area, has become one of serious threat of power system safety and stability operation at present.
Current metal armouring equipment condensation dehumanization method is usually installs electric heater therein so that it is internal temperature raises, it is to avoid condensation of moisture, existing problems have: 1) electric heater unit puts into operation all the year round, consume a large amount of electric energy, less economical；2) when temperature is higher, metal armouring device interior temperature can be caused too high, shorten the service life of insulant；3) electrical heating dehydrating unit is only capable of being arranged in the local of metal armouring equipment, and its interior temperature distribution is uneven, and inner space is more big, and heats is more poor, and effect on moisture extraction is also more poor；4) aging speed of electric heater unit is very fast, there is bigger fire risk.
Therefore, it is necessary to a kind of metal armouring equipment condensation dehydrating unit of design and control method thereof.
Summary of the invention
Backward situation for prior art, rotary dehumidifier formula condensation dehydrating unit and the control method thereof of a kind of metal armouring equipment are provided, use the method can humiture situation within different metal armored equipment, automatically the humidity of the remote each metal armouring device interior of centralized Control, effectively drive away condensation, it is ensured that the safe and stable operation of metal armouring equipment.
A kind of rotary dehumidifier formula condensation dehydrating unit of metal armouring equipment, rotary dehumidifier 1, unit ventilators and condensation automatic dehumidifying controller 10；Described unit ventilators is arranged on metal armouring equipment, is connected with rotary dehumidifier 1 with backwind tube 9 by blast pipe 3；
Described unit ventilators includes Hygrothermograph 4, air inlet air-valve 6 and return air inlet air-valve 11；
Described rotary dehumidifier 1 is connected with metal armouring equipment 8 by blast pipe 3；In the passage that blast pipe 3 is connected with metal armouring equipment 8, it is provided with air inlet air-valve 6 along gas flow direction；
Return air in metal armouring equipment 8 circulates to rotary dehumidifier 1 through return air inlet air-valve 11 and backwind tube 9, forms the circulation of wind；
Described Hygrothermograph 4 is arranged in metal armouring equipment, and Hygrothermograph 4, air inlet air-valve 6 and return air inlet air-valve 11 are all connected with described condensation automatic dehumidifying controller 10.
Including the many groups of unit ventilators being arranged in parallel between blast pipe 3 and backwind tube 9, often group unit ventilators connects a metal armouring equipment.
It is provided with plenum chamber 2 between described rotary dehumidifier 1 and blast pipe.
Send the dynamic pressure of wind for reducing rotary dehumidifier 1, increase static pressure, make dry air can transmit farther；
Pipeline between metal armouring equipment and blast pipe is provided with ball-shape air outlet 5.
For increasing the blast often organizing metal armouring equipment 8 air inlet, dry air is made to propagate farther in metal armouring equipment 8.
It is provided with grating type wind deflector 7 after described air inlet air-valve 11.
For reducing the eddy current of wind, make the air-flow in entrance metal armouring equipment 8 uniform, improve the effect on moisture extraction in metal armouring equipment 8.
The rotary dehumidifier formula condensation dehydrating unit control method of a kind of metal armouring equipment, adopts the device described in any one of claim 1-5, comprises the following steps:
Step 1: utilize Hygrothermograph 4 to measure the initial temperature T obtaining each metal armouring device interior1With start humidity h1；
As start humidity h1>=80% or start humidity 55%≤h1<80%, and per hour temperature reducing rate>=2 DEG C time start dehumidifying program；
The humid control target of condensation automatic dehumidifying controller 10 acquiescence is 50%；
Step 2: if the temperature and humidity of metal armouring device interior all reaches after step 1 imposes a condition, condensation automatic dehumidifying controller 10 controls to start rotary dehumidifier 1, and send control instruction and open air inlet air-valve 6 corresponding to this metal armouring equipment and return air inlet air-valve 11, dry air blows to metal armouring equipment through blast pipe 3, and humid air circulates to rotary dehumidifier 1 through return air inlet air-valve 11 and backwind tube 9；
Step 3: when the humidity in metal armouring equipment has reached the target humidity value of setting, then sent control instruction by automatic dehumidifying controller 10, close air inlet air-valve 6 and the return air inlet air-valve 11 of its correspondence, stop this metal armouring equipment is dehumidified, the metal armouring equipment of miss the mark humidity value then continues dehumidifying, and air inlet air-valve 6 and the return air inlet air-valve 11 of its correspondence are still held open；
Step 4: repeat step 3, until the humidity in all metal armouring equipment that need to dehumidify reaches target humidity value, closes rotary dehumidifier 1.
Beneficial effect
The invention provides the rotary dehumidifier formula condensation dehydrating unit of a kind of metal armouring equipment and control method thereof, this device rotary dehumidifier, unit ventilators and condensation automatic dehumidifying controller；Described unit ventilators is arranged on metal armouring equipment, is connected with rotary dehumidifier with backwind tube by blast pipe；This apparatus structure is simple, and automaticity is high, it is achieved that the automatic distant control of metal armouring equipment condensation, greatly reduce the opening time of dehumidification equipment, avoid that metal armouring device interior is overheated due to dehumidification equipment and the fire risk that causes, saves energy, good economy performance；Single metal armored equipment interior humidity controls relatively uniform, and humidity desired value can arbitrarily set, it is to avoid bulk metal armored equipment internal moisture removal non-uniform phenomenon, and effect on moisture extraction is good；Rotary dehumidifier is arranged on metal armouring device external, and plant-grid connection point is outside it, it is not necessary to obtain power supply from metal armouring device interior, it is to avoid metal armouring device interior power supply unit fault；Dehumidification process does not result in metal armouring device interior temperature raise, it is to avoid insulant aging too fast risk.The present invention propose control method without manual intervention, greatly reducing manual labor amount, it is achieved that unmanned dehumidification operation accurately, using value is bigger.
Accompanying drawing explanation
Fig. 1 is the method for the invention flow chart
Fig. 2 is the schematic diagram of one specific embodiment of device of the present invention；
Description of symbols: 1 rotary dehumidifier, 2 plenum chambers, 3 blast pipes, 4 Hygrothermographs, 5 ball-shape air outlets, 6 air inlet air-valves, 7 grating type wind deflectors, 8 metal armouring equipment, 9 backwind tubes, 10 condensation automatic dehumidifying controllers, 11 return air inlet air-valves.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in more detail.
As in figure 2 it is shown, the rotary dehumidifier formula condensation dehydrating unit of a kind of metal armouring equipment, rotary dehumidifier 1, unit ventilators and condensation automatic dehumidifying controller 10；Described unit ventilators is arranged on metal armouring equipment, is connected with rotary dehumidifier 1 with backwind tube 9 by blast pipe 3；
Described unit ventilators includes Hygrothermograph 4, air inlet air-valve 6 and return air inlet air-valve 11；
Described rotary dehumidifier 1 is connected with metal armouring equipment 8 by blast pipe 3；In the passage that blast pipe 3 is connected with metal armouring equipment 8, it is provided with air inlet air-valve 6 along gas flow direction；
Return air in metal armouring equipment 8 circulates to rotary dehumidifier 1 through return air inlet air-valve 11 and backwind tube 9, forms the circulation of wind；
Described Hygrothermograph 4 is arranged in metal armouring equipment, and Hygrothermograph 4, air inlet air-valve 6 and return air inlet air-valve 11 are all connected with described condensation automatic dehumidifying controller 10.
Including the many groups of unit ventilators being arranged in parallel between blast pipe 3 and backwind tube 9, often group unit ventilators connects a metal armouring equipment.
It is provided with plenum chamber 2 between described rotary dehumidifier 1 and blast pipe.
Send the dynamic pressure of wind for reducing rotary dehumidifier 1, increase static pressure, make dry air can transmit farther；
Pipeline between metal armouring equipment and blast pipe is provided with ball-shape air outlet 5.
For increasing the blast often organizing metal armouring equipment 8 air inlet, dry air is made to propagate farther in metal armouring equipment 8.
It is provided with grating type wind deflector 7 after described air inlet air-valve 11.
For reducing the eddy current of wind, make the air-flow in entrance metal armouring equipment 8 uniform, improve the effect on moisture extraction in metal armouring equipment 8.
The condensation dehydrating unit control method of the rotary dehumidifier formula of metal armouring equipment is as it is shown in figure 1, its rate-determining steps is as follows:
Step 1: utilize Hygrothermograph 4 to measure the initial temperature T of each metal armouring device interior1With start humidity h1, as start humidity h1>=80% or start humidity 55%≤h1<80% and per hour temperature reducing rate>=2 DEG C time start dehumidifying program；The humid control target of condensation automatic dehumidifying controller 10 acquiescence is 50%；
Step 2: if the temperature and humidity of certain (being also likely to be multiple) metal armouring device interior all reaches after step 1 imposes a condition, condensation automatic dehumidifying controller 10 controls to start rotary dehumidifier 1, and open air inlet air-valve 6 corresponding to this metal armouring equipment and return air inlet air-valve 11, dry air blows to this metal armouring equipment through plenum chamber 2, blast pipe 3, ball-shape air outlet 5, air inlet air-valve 6 and grating type wind deflector 7, and humid air circulates to rotary dehumidifier 1 through return air inlet air-valve 11 and backwind tube 9；
Step 3: if the humidity in certain metal armouring equipment has reached target humidity value, then controlled by automatic dehumidifying controller 10, close air inlet air-valve 6 and the return air inlet air-valve 11 of its correspondence, stop this metal armouring equipment is dehumidified, the metal armouring equipment of all the other miss the mark humidity values then continues dehumidifying, and air inlet air-valve 6 and the return air inlet air-valve 11 of its correspondence are still held open；
Step 4: repeat step 3, until the humidity in all metal armouring equipment that need to dehumidify reaches target humidity value, closes rotary dehumidifier 1.
The rotary dehumidifier formula condensation dehydrating unit embodiment of metal armouring equipment is as follows:
Embodiment 1:
Rotary dehumidifier 1 be Wuxi Yong Bang dehumidification equipment company limited produce, model is ZCM-350, specified go out moisture be 4.8kg/h；Plenum chamber 2 adopts 304 corrosion resistant plates to process voluntarily；Blast pipe 3 and backwind tube 9 adopt 304 rustless steels to process voluntarily；Hygrothermograph 4 adopts the W4052 type humiture transducer that Te An instrument and equipment company limited produces, and temperature measurement range is-40 DEG C～150 DEG C, and relative humidity measurement ranges for 5%～110%；Ball-shape air outlet 5 is that company limited of Ai Ponaier ventilation installation, Shanghai produces, and model is TE065, air outlet diameter 80mm；Air intake air-valve 6 and return air air-valve 11 adopt Wuhan Ge Laite to control the D941W type electrically ventilating butterfly valve that valve company produces；Grating type wind deflector 7 adopts 304 corrosion resistant plates to process voluntarily；Metal armouring equipment 8 adopts the KYN28A type 10kV switch cubicle that Hunan Yan Neng controller switching equipment company limited produces；Condensation automatic dehumidifying controller 10 adopts NZK-210 type condensation automatic dehumidifying controller, and Beijing is easily contained calm and peaceful Science and Technology Ltd. and produced.
The rotary dehumidifier formula condensation dehydrating unit control method embodiment of metal armouring equipment is as follows:
Embodiment 1:
(1) 6 KYN28A type 10kV switch cubicles are installed altogether, run numbering respectively 310,312,314,3 × 14,316,318, utilize Hygrothermograph to measure the initial temperature T in every 10kV switch cubicle respectively1With start humidity h1, wherein, it is 70%, 72% that the humidity value of 310,312,314 and 3 × 14 has respectively reached 85%, 81%, 82%, 83%, 316 and 318 humidity value；Condensation automatic dehumidifying controller 10 starts to start 310,312,314 and 3 × 14 dehumidifying, and humid control target is 50%；
(2) condensation automatic dehumidifying controller controls to start rotary dehumidifier, and open air inlet air-valve and the return air inlet air-valve of switch cubicle 310,312,314 and 3 × 14 correspondence, dry air blows to switch cubicle 310,312,314 and 3 × 14 through plenum chamber, blast pipe, ball-shape air outlet, air inlet air-valve and grating type wind deflector, and humid air circulates to rotary dehumidifier through return air inlet air-valve and backwind tube；
(3) after 10min, the humidity value of switch cubicle 310,312,314 and 3 × 14 respectively 50%, 58%, 60%, 63%, condensation automatic dehumidifying controller controls air inlet air-valve and the return air inlet air-valve of closing switch cabinet 310, stop, to its dehumidifying, 312,314 and 3 × 14 switch cubicles continuing to dehumidifying；
(4) then through after 5min, humidity value in 312 and 314 switch cubicles has reached 50%, and the humidity value of 3 × 14 is 55%, and condensation automatic dehumidifying controller controls to cut out air inlet air-valve and the return air inlet air-valve of 312 and 314 switch cubicles, stop, to its dehumidifying, 3 × 14 switch cubicles continuing to dehumidifying；
(5) then through after 5min, the humidity value of 3 × 14 switch cubicles has reached 50%, and condensation automatic dehumidifying controller controls air inlet air-valve and the return air inlet air-valve of cut out 3 × 14 switch cubicle, and closes rotary dehumidifier, and dehumidifying stops.
The rotary dehumidifier formula condensation dehydrating unit of above-mentioned metal armouring equipment and control method thereof are proven reliably feasible, are fully achieved expected design.
Claims (6)
1. the rotary dehumidifier formula condensation dehydrating unit of a metal armouring equipment, it is characterised in that rotary dehumidifier (1), unit ventilators and condensation automatic dehumidifying controller (10)；Described unit ventilators is arranged on metal armouring equipment, is connected with rotary dehumidifier (1) with backwind tube (9) by blast pipe (3)；
Described unit ventilators includes Hygrothermograph (4), air inlet air-valve (6) and return air inlet air-valve (11)；
Described rotary dehumidifier (1) is connected with metal armouring equipment (8) by blast pipe (3)；In the passage that blast pipe (3) is connected with metal armouring equipment (8), it is provided with air inlet air-valve (6) along gas flow direction；
Return air in metal armouring equipment (8) circulates to rotary dehumidifier (1) through return air inlet air-valve (11) and backwind tube (9), forms the circulation of wind；
Described Hygrothermograph (4) is arranged in metal armouring equipment, and Hygrothermograph (4), air inlet air-valve (6) and return air inlet air-valve (11) are all connected with described condensation automatic dehumidifying controller (10).
2. device according to claim 1, it is characterised in that include the many groups of unit ventilators being arranged in parallel between blast pipe (3) and backwind tube (9), often group unit ventilators connects a metal armouring equipment.
3. device according to claim 1, it is characterised in that be provided with plenum chamber (2) between described rotary dehumidifier (1) and blast pipe.
4. the device according to any one of claim 1-3, it is characterised in that be provided with ball-shape air outlet (5) on the pipeline between metal armouring equipment and blast pipe.
5. device according to claim 4, it is characterised in that be provided with grating type wind deflector (7) after described air inlet air-valve (11).
6. the rotary dehumidifier formula condensation dehydrating unit control method of a metal armouring equipment, it is characterised in that adopt the device described in any one of claim 1-5, comprise the following steps:
Step 1: utilize Hygrothermograph (4) to measure the initial temperature T obtaining each metal armouring device interior1With start humidity h1；
As start humidity h1>=80% or start humidity 55%≤h1<80%, and per hour temperature reducing rate>=2 DEG C time start dehumidifying program；
Step 2: if the temperature and humidity of metal armouring device interior all reaches after step 1 imposes a condition, condensation automatic dehumidifying controller (10) controls to start rotary dehumidifier (1), and send control instruction and open air inlet air-valve (6) corresponding to this metal armouring equipment and return air inlet air-valve (11), dry air blows to metal armouring equipment through blast pipe 3, and humid air circulates to rotary dehumidifier 1 through return air inlet air-valve 11 and backwind tube 9；
Step 3: when the humidity in metal armouring equipment has reached the target humidity value of setting, then sent control instruction by automatic dehumidifying controller 10, close air inlet air-valve (6) and the return air inlet air-valve (11) of its correspondence, stop this metal armouring equipment is dehumidified, the metal armouring equipment of miss the mark humidity value then continues dehumidifying, and air inlet air-valve 6 and the return air inlet air-valve 11 of its correspondence are still held open；
Step 4: repeat step 3, until the humidity in all metal armouring equipment that need to dehumidify reaches target humidity value, closes rotary dehumidifier (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610244937.2A CN105811275A (en) | 2016-04-19 | 2016-04-19 | Rotary dehumidifier-type condensation dehumidification device for metal-clad equipment and control method of rotary dehumidifier-type condensation dehumidification device |
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| CN201610244937.2A CN105811275A (en) | 2016-04-19 | 2016-04-19 | Rotary dehumidifier-type condensation dehumidification device for metal-clad equipment and control method of rotary dehumidifier-type condensation dehumidification device |
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| CN105811275A true CN105811275A (en) | 2016-07-27 |
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| CN201610244937.2A Pending CN105811275A (en) | 2016-04-19 | 2016-04-19 | Rotary dehumidifier-type condensation dehumidification device for metal-clad equipment and control method of rotary dehumidifier-type condensation dehumidification device |
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| CN106207771A (en) * | 2016-08-31 | 2016-12-07 | 泉州维盾电气有限公司 | A kind of silica gel runner is applied to dehumidification system in switch cubicle |
| CN106253104A (en) * | 2016-08-18 | 2016-12-21 | 由铭甫 | A kind of high voltage power transmission and transforming is except condensation assembly and except condensation method |
| CN108449899A (en) * | 2018-04-11 | 2018-08-24 | 安徽沃屹智能装备有限公司 | A kind of Multifunctional energy-saving type waterproof control cabinet |
| CN108649436A (en) * | 2018-07-19 | 2018-10-12 | 广东电网有限责任公司 | The condensation that makes moist applied to high-tension switch cabinet prevents apparatus and system |
| CN110618649A (en) * | 2018-06-19 | 2019-12-27 | 宝山钢铁股份有限公司 | Online dehumidification air injection system and method for finishing and preventing corrosion of oriented silicon steel |
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| CN110618649A (en) * | 2018-06-19 | 2019-12-27 | 宝山钢铁股份有限公司 | Online dehumidification air injection system and method for finishing and preventing corrosion of oriented silicon steel |
| CN108649436A (en) * | 2018-07-19 | 2018-10-12 | 广东电网有限责任公司 | The condensation that makes moist applied to high-tension switch cabinet prevents apparatus and system |
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Application publication date: 20160727 |