A kind of switchgear with low-cost high-efficiency dehumidification function
The utility model relates to power system device technical fields, and in particular to be a kind of to be removed with low-cost high-efficiency
The switchgear of wet function.
A kind of electrical equipment when switchgear is influenced, bin by geographical environment, meteorology and climate and switchgear self structure
Interior easy accumulation moisture is not easy to be discharged again after accumulation, when switchgear high-temperature operation, bin is outer and bin in the temperature difference it is larger when, just
Easily form condensation.In addition, the cable duct that cable vault's connection is extraneous, since cable trench water collecting is serious, cable vault does not block again,
Therefore cable vault becomes one of the main source of steam in bin.
Existing switchgear mainly uses two ways to dehumidify, first, installing heating and dehumidification device, temperature after heating in bin
When higher, more moisture can be accommodated in air, keep the moisture of possible condensation still in air with the state of vapor, and
It will not condense in cabinet wall and equipment, but this method can not be inherently eliminated condensation, reason is this method only
It is the degree of unsaturation for increasing water vapor in air, the steam in cabinet is not discharged, and bin inner volume is larger, heat damage
Consumption is big；Second, the water-absorbent materials such as similar silica gel bag are hung in bin, but since bin volume is larger, unless suspension is a large amount of
Water-absorbent material, otherwise dehumidifying, speed is slow, water absorbing capacity is limited, and water suction takes effect also relatively slow.
In view of this, the present inventor furthers investigate in view of the above-mentioned drawbacks in the prior art, there is this case generation then.
Utility model content
The main purpose of the utility model is to provide a kind of switchgears with low-cost high-efficiency dehumidification function, break through
Traditional single dehumanization method reaches the more thorough, speed that dehumidifies and imitates faster according to comprehensive treatment is carried out the characteristics of switchgear
Fruit, and efficiently dehumidifying can also reduce cost.
In order to achieve the above objectives, the solution of the utility model is:
A kind of switchgear with low-cost high-efficiency dehumidification function is provided, wherein including cabinet body, the first dehumidification device,
Second dehumidification device, the first ventilation duct, the second ventilation duct and heat(ing) coil, the bottom of cabinet bulk are equipped with cable vault, cable vault
Equipped with the cable conduit being connected to cable duct, first dehumidification device includes the first shell and drier, this is outside first
The middle part of shell is equipped with resigning groove, is equipped with the through-hole being connected to cable conduit in the middle part of the resigning groove and groove both ends of stepping down are set
There is the mounting hole being connected to the first shell, the vertical cabinet body of the mounting hole is arranged and mounting hole is equipped with screw thread hole wall, the drying
Mechanism include silica-gel desiccant, the accommodating ontology for accommodating silica-gel desiccant and for seal accommodating ontology sealing cover,
The accommodating ontology one end is equipped with external screw thread and accommodates the setting of Ontology Matching mounting hole, and the other end for accommodating ontology is equipped with several
It is respectively equipped with the first air inlet and the first air outlet at the top and bottom of the cabinet body, which includes second
Shell and exhaust fan, semiconductor chilling plate, out hyponome and the first power-on switch being placed in second housing, the second housing
With the second air inlet and the second air outlet, the both ends of first ventilation duct are respectively communicated with the first air outlet and the second air inlet
And heat(ing) coil is located in the first ventilation duct, and the both ends of second ventilation duct are respectively communicated with the second air outlet and the first air inlet
Mouthful, which has cold end, hot end and water outlet, and the second air inlet is connected to cold end, the second air outlet and hot end
Connection, the exhaust fan are located at the second air outlet, and water outlet is connected to hyponome out, the first dehumidifying of the first power-on switch control
Device opening and closing.
Further, first dehumidification device further includes having sealing structure, which includes annular convex platform, switch
Lid, two panels N pole flat thin magnet and the pole two panels S flat thin magnet, the annular convex platform ride upon one end of mounting hole, and switch cover is equipped with and ring
The annular interconnecting piece that shape boss connects and the closure for closing mounting hole, the pole two panels N flat thin magnet are respectively provided at interconnecting piece
Close to the side of annular convex platform and closure close to the side of sealing cover, it is close that the pole two panels S flat thin magnet is respectively provided at annular convex platform
The side of interconnecting piece and accommodating ontology are close to the side of closure.
Further, switchgear is additionally provided with the second power-on switch of control heat(ing) coil opening and closing.
After adopting the above technical scheme, the utility model is related to a kind of switchgear with low-cost high-efficiency dehumidification function, with
The prior art is compared, and the utility model breaks through tradition, is filled according to setting the characteristics of switchgear using the first dehumidifying of two ways dehumidifying
Set with the second dehumidification device, invaded first in moisture in more serious cable vault and the first dehumidification device be set, first dehumidifying dress
Set the moisture packet that on the one hand will be invaded from cable duct with drier and the first shell for surrounding cable conduit, the first shell
It encloses, on the other hand the dry moisture absorption range for reducing drier, realization prevent the excessive of steam from scattering and utilizing in small space
For desiccant quickly by water vapor absorption, moisture absorption is quick.Enter in cabinet body however, still having fraction moisture, and there are also outer
The moisture on boundary enters in cabinet body from the gap of cabinet body, at this point, constantly pumping the biggish air of moisture outward by the first ventilation duct
And heat temperature raising, then condense out water droplet by the cold end of semiconductor chilling plate to exclude moisture, is heated using hot end
Heating returns in cabinet body after further dehumidifying.In this way, two kinds of dehumidifying sides are targetedly arranged according to the intracorporal different situations of cabinet
The different dehumidification device of formula, the first dehumidification device absorption speed get a promotion, and the second dehumidification device, which plays, is further dried gas
Effect and without increasing excessive power, the two cooperates the dehumidifying benefit that can be realized optimization.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the partial structure diagram of the first dehumidification device.
Fig. 3 is the structural schematic diagram of the first dehumidification device and the schematic diagram of sealing structure.
Fig. 4 is the enlarged diagram of part A in Fig. 3.
Cabinet body -1；First air inlet -11；First air outlet -12；
First dehumidification device -2；First shell -21；Resigning groove -211；Through-hole -212；Mounting hole -213；Screw thread hole wall-
2131；Drier -22；Accommodate ontology -221；External screw thread -2211；Venthole -2212；Sealing cover -2213；
Second dehumidification device -3；Second housing -31；Second air outlet -311；Second air inlet -312；Semiconductor refrigerating
Piece -32；Cold end -321；Hot end -322；Hyponome -33 out；Exhaust fan -34；Sealing structure -35；Annular convex platform -351；Switch
Lid -352；The pole N flat thin magnet -353；The pole S flat thin magnet -354；
First ventilation duct -4；Second ventilation duct -5；Heat(ing) coil -6；
In order to which the technical solution of the utility model is explained further, below by specific embodiment come to the utility model into
As shown in Figure 1, 2, the utility model relates to a kind of switchgear with low-cost high-efficiency dehumidification function, mainly
It include cabinet body 1, the first dehumidification device 2, the second dehumidification device 3, the first ventilation duct 4, the second ventilation duct 5 and heat(ing) coil 6,
1 bottom of cabinet body is equipped with cable vault, and cable vault is equipped with the cable conduit being connected to cable duct, and first dehumidification device 2 wraps
Include the first shell 21 and drier 22, the middle part of first shell 21 is equipped with resigning groove 211, in the resigning groove 211
Portion is equipped with the through-hole 212 being connected to cable conduit and 211 both ends of groove of stepping down are equipped with the mounting hole being connected to the first shell 21
213, which is arranged and mounting hole 213 is equipped with screw thread hole wall 2131.It can be incited somebody to action by the first shell 21
Moisture in cable duct is surrounded as far as possible, reduces the scope of activities of moisture, to play better effect on moisture extraction.
Wherein, the drier 22 includes silica-gel desiccant (not shown), the accommodating sheet for accommodating silica-gel desiccant
Body 221 and for seal accommodating ontology 221 sealing cover 2213,221 one end of accommodating ontology be equipped with external screw thread 2211 and
The setting of 221 Matching installation hole 213 of ontology is accommodated, the other end of accommodating ontology 221 is equipped with several ventholes 2212.Due to accommodating
Ontology 221 is equipped with sealing cover 2213, and the pick-and-place of silica-gel desiccant can be realized by switch seal lid 2213, accommodates ontology 221
Several ventholes 2212 are equipped with, silica-gel desiccant absorbs the moisture in second housing by venthole 2212.In addition, passing through
Sealing cover 2213 is opened by hot wind toward being passed into accommodating ontology 221, hot wind is blown out from venthole again, to effectively evaporate silica gel
Moisture accompanying by desiccant makes silica-gel desiccant carry out secondary use, improves the utilization rate of desiccant and economizes on resources, uses
It is discharged in the hot wind heated to silica-gel desiccant by venthole 2212.Since mounting hole 213 is equipped with and accommodating ontology
The screw thread hole wall 2131 that 221 external screw thread 2211 matches can easily take out accommodating originally by rotating the first shell 21
Body 221, consequently facilitating replacement or high temperature drying have absorbed many moisture silica-gel desiccants.
In order to solve some moisture overflowed from the first shell 21 and enter cabinet body 1 from the external world by the gap of cabinet body 1
Moisture, be respectively equipped with the first air inlet 11 and the first air outlet 12 at the top and bottom of the cabinet body 1, second dehumidification device 3 packet
It includes second housing 31 and the exhaust fan 34 being placed in second housing 31, semiconductor chilling plate 32, go out hyponome 33 and first logical
Electric switch (not shown), the second housing 31 have the second air inlet 312 and the second air outlet 311, first ventilation duct 4
Both ends are respectively communicated with the first air outlet 12 and the second air inlet 312 and heat(ing) coil 6 is located in the first ventilation duct 4, and described
The both ends of two ventilation ducts 5 are respectively communicated with the second air outlet 311 and the first air inlet 11.Moisture in cabinet body 1 passes through the first air inlet
Mouth 11 enters in the first ventilation duct 4, and by opening heat(ing) coil 6 to improve the temperature of moisture, the moisture after heating passes through
Second air inlet 312 enters in the second dehumidification device 3 and carries out dehumidifying step.
Wherein, which has cold end 321, hot end 322 and water outlet, the second air inlet 312 and cold end
321 connections, the second air outlet 311 be connected to hot end 322, and the exhaust fan 34 is located at the second air outlet 311, water outlet and out
Hyponome 33 is connected to.Due to the second air inlet 312 be connected with the cold end 321 of semiconductor chilling plate 32 and hot gas encounter temperature compared with
Liquefied effect easily occurs for low object, and institute is cold simultaneously by water droplet is condensed out by the cold end 321 of semiconductor chilling plate 32 for moisture
Solidifying water droplet passes through the hyponome 33 that goes out being arranged in the second dehumidification device 3 and is discharged, due to the second air outlet 311 and semiconductor system
Cold 32 hot end 322 is connected, and the gas after liquefaction dehumidifying will carry out heating by the gas of the second air outlet 311 and play again
The effect of secondary drying, exhaust fan 34 pump to the gas after completing drying in the second ventilation duct 5, will by the first air outlet 12
Gas after dehumidifying is drained into again in cabinet body 1.The opening and closing of the first dehumidification device 2 is controlled by the first power-on switch of setting,
The problem of avoiding two dehumidification devices of a switch control while running plays control respectively and the effect convenient for operation.
As shown in Figure 3,4, first dehumidification device 2 further includes having sealing structure 35, which includes annular
Boss 351, switch cover 352, the pole two panels N flat thin magnet 353 and the pole two panels S flat thin magnet 354, which rides upon peace
The one end in hole 213 is filled, switch cover 352 is equipped with the annular interconnecting piece connecting with annular convex platform 351 and for closing mounting hole 213
Closure, the pole two panels N flat thin magnet 353 is respectively provided at interconnecting piece close to the side of annular convex platform 351 and closure close to sealing
The side of lid 2213, the pole two panels S flat thin magnet 354 are respectively provided at annular convex platform 351 close to the side of interconnecting piece and accommodating ontology 221
Close to the side of closure, since the top of accommodating ontology 221 is equipped with the pole S flat thin magnet 354, the bottom of switch cover 352 is equipped with the pole N
Flat thin magnet 353.The both ends of mounting hole 213 are connected to cabinet body 1 and the first shell 21 respectively, and accommodating main body 221 is not inserted into mounting hole
When 213, the annular interconnecting piece and annular convex platform 351 of switch cover 352 are by magnetic connection, when accommodating main body 221 is inserted into mounting hole
When 213, accommodating main body 221 inwardly pushes away switch cover 352, and thrust separates switch cover 352 with annular convex platform 351, holds at this time
Mounting hole 213 can be blocked by setting main body 221, prevent extraneous moisture from entering cabinet body 1, and the envelope of switch cover 352 from mounting hole 213
Closing part and accommodating main body 221 effectively prevent switch cover 352 to fall in second housing 31 by magnetic connection, accommodate main body 221
Switch cover 352 is separated by the gear power of annular convex platform 351 with accommodating main body 221 again when being detached from mounting hole 213.
In order to preferably control the heat(ing) coil 6 being located in the first ventilation duct 4, switchgear is additionally provided with control heat(ing) coil 6
Second power-on switch of opening and closing, since the second power-on switch individually controls heat(ing) coil 6, so that entire heat(ing) coil 6
Operation it is more secure.
To sum up, the utility model is according to setting the characteristics of switchgear using the first dehumidification device 2 and second of two ways dehumidifying
Dehumidification device 3, invades in more serious cable vault in moisture the first dehumidification device 2 is arranged first, and the first dehumidification device 2 has
Drier 22 and the first shell 21 for surrounding cable conduit, the moisture packet that 21 one side of the first shell will be invaded from cable duct
It encloses, on the other hand the dry moisture absorption range for reducing drier 22, realizing prevents the excessive of steam from scattering and sharp in small space
With desiccant quickly by water vapor absorption, moisture absorption is quick.Enter in cabinet body 1 however, still having fraction moisture, and also
Extraneous moisture enters in cabinet body 1 from the gap of cabinet body 1, at this point, it is biggish constantly to pump moisture outward by the first ventilation duct 4
Then air and heat temperature raising condense out water droplet by the cold end 321 of semiconductor chilling plate 32 to exclude moisture, using
322 heat temperature raising of hot end returns in cabinet body 1 after further dehumidifying.In this way, targetedly being set according to the different situations in cabinet body 1
Two kinds of different dehumidification devices of dehumidification mode are set, 2 absorption speed of the first dehumidification device gets a promotion, and the second dehumidification device 3 plays
The effect of gas is further dried and is not necessarily to increase excessive power, the two cooperates the dehumidifying benefit that can be realized optimization.
The utility model description in, it is to be understood that the indicating positions such as term " top ", " bottom ", " inside " or
Person's positional relationship is to be merely for convenience of description the utility model based on positional relationship described in attached drawing or simplified description, without
It is the specific orientation that instruction must have.
The product form and style of above-described embodiment and schema and non-limiting the utility model, any technical field
The appropriate changes or modifications that those of ordinary skill does it all should be regarded as the patent category for not departing from the utility model.