CN212680575U - Automatic dehydrating unit of distribution automation looped netowrk cabinet - Google Patents
Automatic dehydrating unit of distribution automation looped netowrk cabinet Download PDFInfo
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- CN212680575U CN212680575U CN202021498748.6U CN202021498748U CN212680575U CN 212680575 U CN212680575 U CN 212680575U CN 202021498748 U CN202021498748 U CN 202021498748U CN 212680575 U CN212680575 U CN 212680575U
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- dehumidifier
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- ring main
- air outlet
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Abstract
The utility model provides a distribution automation looped netowrk cabinet automatic dehumidification device, relates to a looped netowrk cabinet automatic dehumidification technique, and it is big and influence the safe operation problem of other equipment in the looped netowrk cabinet easily to occupy the looped netowrk cabinet space in order to solve current dehumidifier setting in the looped netowrk cabinet. The air outlet pipe of the novel device is communicated with the ring main unit and the dehumidifier; the dehumidifier is communicated with the ring main unit; a coil of the relay J is connected with a power supply Vcc, and a coil of the relay J is connected with an emitting electrode of the triode Q; the base electrode of the triode Q is connected with a humidity-sensitive resistor R2, a humidity-sensitive resistor R2 is connected with a resistor R1, and a resistor R1 is grounded; the collector of the triode Q is grounded; a common terminal of the relay J is connected with a positive electrode of a power supply U1, a negative electrode of the power supply U1 is connected with one terminal of the dehumidifier, and the other terminal of the dehumidifier is connected with a normally open contact of the relay J; the humidity sensitive resistor R2 is arranged inside the ring main unit. The beneficial effects are that it is little for occupying looped netowrk cabinet space, do not influence the safe operation of other equipment in the looped netowrk cabinet.
Description
Technical Field
The utility model relates to an automatic dehumidification technology of looped netowrk cabinet.
Background
The distribution automation ring main unit is used as important equipment of a distribution network and has important functions of connecting a distribution ring network and distributing electric energy; the ring main unit is usually arranged on the ground and connected with the cable trench, so that the air humidity in the ring main unit is high; in rainy days, condensation and even water accumulation can occur in the ring main unit, thereby easily causing element short circuit and damaging internal elements. Along with the application of distribution automation system, secondary equipment such as DUT has been increased in the looped netowrk cabinet, has proposed higher requirement to the operational environment in the looped netowrk cabinet, especially the humidity of the interior air of looped netowrk cabinet. When the humidity of the air in the ring main unit is large, the operation reliability of the secondary equipment in the ring main unit can be seriously influenced, and even the secondary equipment can be damaged.
Aiming at the problems, three measures are mainly taken at present; the first measure is that the ring main unit is periodically maintained by operation and maintenance workers according to experience, and condensation and accumulated water in the ring main unit are removed; however, dead corners often exist in manual cleaning work, power is needed to be cut off when necessary, the period of regular maintenance work is often long, and in rainy days, more condensation and accumulated water can appear in the ring main unit in a short time, namely, the requirement of operation of secondary equipment in the ring main unit is difficult to meet by regular manual maintenance; the second kind of measure is to adopt the drier to dehumidify, adopt the drier although there is certain effect, but bring the pollution easily, and need often supply or change the drier, the third kind of measure is to adopt the dehumidifier, the dehumidifier is although can effectively reduce the humidity of air in the looped netowrk cabinet, but current dehumidifier all is equipped with the controller, and must set up current dehumidifier inside the looped netowrk cabinet, just can have the dehumidification effect, and looped netowrk cabinet inner space is limited, need add humidity transducer and temperature sensor simultaneously in order to cooperate the controller, make other equipment in dehumidifier and the looped netowrk cabinet each other take place to interfere with easily, and influence the safe operation of other equipment in the looped netowrk cabinet.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving current dehumidifier setting and occuping the looped netowrk cabinet space big and influence the safe operation problem of other equipment in the looped netowrk cabinet easily in the looped netowrk cabinet, provide an automatic dehydrating unit of distribution automation looped netowrk cabinet.
The utility model relates to an automatic dehumidification device of a distribution automation ring main unit, which is arranged on the side wall of the ring main unit; the automatic dehumidifying device comprises a dehumidifier;
the top surface of the dehumidifier is provided with an air outlet, the side surface of the dehumidifier is provided with an air inlet, and the bottom of the dehumidifier is provided with a condensed water outlet; the method comprises the following steps that humid air is sucked in through an air inlet of a dehumidifier, water molecules in the humid air are discharged in a condensed water mode through the dehumidifier, and meanwhile, dry air is discharged; wherein, the condensed water is discharged from the condensed water outlet, and the dry air is discharged from the air outlet;
the dehumidifier is powered by a power supply U1;
the automatic dehumidifying device also comprises an air outlet pipe and an automatic dehumidifying circuit;
the upper part of the same side wall of the ring main unit is provided with an air outlet through hole, and the lower part of the same side wall of the ring main unit is provided with an air inlet through hole;
the top end of the air outlet pipe is communicated with the inside of the ring main unit through an air outlet through hole, and the bottom end of the air outlet pipe is communicated with an air outlet of the dehumidifier; an air inlet of the dehumidifier is communicated with the inside of the ring main unit through an air inlet through hole;
the automatic dehumidification circuit comprises a power supply Vcc, a relay J, a resistor R1, a humidity sensitive resistor R2 and a triode Q;
one end of a coil of the relay J is connected with the output end of a power supply Vcc, and the other end of the coil of the relay J is connected with an emitting electrode of the triode Q; the base electrode of the triode Q is connected with one terminal of a humidity-sensitive resistor R2, the other terminal of a humidity-sensitive resistor R2 is connected with one end of a resistor R1, and the other end of the resistor R1 is grounded; the collector of the triode Q is grounded;
a switch common terminal of the relay J is connected with a positive electrode of a power supply U1, a negative electrode of the power supply U1 is connected with one terminal of the dehumidifier, and the other terminal of the dehumidifier is connected with a normally open contact of the relay J switch;
the humidity sensitive resistor R2 is arranged inside the ring main unit.
The utility model discloses a dehumidifier among the automatic dehydrating unit set up outside the looped netowrk cabinet, only need to set up the automatic dehumidification circuit inside the looped netowrk cabinet, can realize automatic dehumidification, the utility model discloses utilize that the environmental humidity that humidity sensitive resistor R2 locates is bigger, the characteristic that the resistance value of humidity sensitive resistor R2 is smaller; when the inside air drying of looped netowrk cabinet, wet quick-witted resistance value of R2 is great, triode Q is in the off-state this moment, along with the increase of the inside air humidity of looped netowrk cabinet, wet quick-witted resistance value of R2 is constantly less, when reaching certain threshold value, triode Q switches on, relay J's coil current reaches the biggest and trigger relay J's switch and converts the normally open state into by the normally closed state this moment, the dehumidifier switches on this moment, begin the dehumidification, make the inside air humidity of looped netowrk cabinet reduce, the realization is to the automatically regulated of the inside humidity of looped netowrk cabinet.
The beneficial effects of the utility model are that the dehumidifier sets up outside the looped netowrk cabinet, only needs to set up automatic dehumidification circuit inside the looped netowrk cabinet, and it is little to occupy the looped netowrk cabinet space, and automatic dehumidification circuit is not equipped with the controller simultaneously, and its core component is humidity sensitive resistance and relay, can not influence the safe operation of other equipment in the looped netowrk cabinet.
Drawings
Fig. 1 is a schematic perspective view of an automatic dehumidification device of a distribution automation ring main unit according to a first embodiment;
FIG. 2 is a circuit diagram of an automatic dehumidification circuit in accordance with one embodiment;
FIG. 3 is a schematic view of the inside of the side wall of the middle ring network cabinet according to the first embodiment;
fig. 4 is a schematic structural diagram of a dehumidifier according to a second embodiment.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 3, and the automatic dehumidification device of the distribution automation ring main unit according to the embodiment is disposed on a side wall of the ring main unit 1; the automatic dehumidifying apparatus includes a dehumidifier 2;
an air outlet is formed in the top surface of the dehumidifier 2, an air inlet is formed in the side surface of the dehumidifier 2, and a condensed water outlet is formed in the bottom of the dehumidifier 2; humid air is sucked in through an air inlet of the dehumidifier 2, and water molecules in the humid air are discharged in the form of condensed water by the dehumidifier 2, and meanwhile, dry air is discharged; wherein, the condensed water is discharged from the condensed water outlet, and the dry air is discharged from the air outlet;
the dehumidifier 2 is powered by a power supply U1;
the automatic dehumidifying device also comprises an air outlet pipe 3 and an automatic dehumidifying circuit;
an air outlet through hole 6 is formed in the upper part of the same side wall of the ring main unit 1, and an air inlet through hole 7 is formed in the lower part of the same side wall of the ring main unit; the air outlet through hole 6 is arranged at the upper part, which is more favorable for air circulation and dehumidification, and the air with high humidity moves downwards due to high density, so that the air inlet through hole 7 is arranged at the lower part of the ring main unit 1, which is favorable for processing humid air;
the top end of the air outlet pipe 3 is communicated with the inside of the ring main unit 1 through an air outlet through hole 6, and the bottom end of the air outlet pipe 3 is communicated with an air outlet of the dehumidifier 2; an air inlet of the dehumidifier 2 is communicated with the inside of the ring main unit 1 through an air inlet through hole 7;
the automatic dehumidification circuit comprises a power supply Vcc, a relay J, a resistor R1, a humidity sensitive resistor R2 and a triode Q;
one end of a coil of the relay J is connected with the output end of a power supply Vcc, and the other end of the coil of the relay J is connected with an emitting electrode of the triode Q; the base electrode of the triode Q is connected with one terminal of a humidity-sensitive resistor R2, the other terminal of a humidity-sensitive resistor R2 is connected with one end of a resistor R1, and the other end of the resistor R1 is grounded; the collector of the triode Q is grounded;
a switch common terminal of the relay J is connected with a positive electrode of a power supply U1, a negative electrode of the power supply U1 is connected with one terminal of the dehumidifier 2, and the other terminal of the dehumidifier 2 is connected with a normally open contact of a switch of the relay J; a normally closed contact of a relay J switch is suspended;
the humidity sensitive resistor R2 is arranged inside the ring main unit 1.
In the embodiment, the automatic dehumidification circuit is used for realizing automatic control of the dehumidifier 2, when the humidity in the ring main unit 1 is too high, the automatic dehumidification circuit controls the dehumidifier 2 to start dehumidifying the ring main unit 1, and when the humidity in the ring main unit 1 is normal, the dehumidification circuit controls the dehumidifier 2 to stop dehumidifying the ring main unit 1, so that resource waste is avoided; the adjustment of the air humidity threshold value in the ring main unit 1 is realized by setting the threshold value of the humidity sensitive resistor R2; the air outlet pipe 3 is used for establishing air circulation in the auxiliary dehumidifier 2, and is L-shaped for facilitating connection of the air outlet pipe 3.
In the present embodiment, the power supply Vcc is a 6V dc power supply, and the resistance value of the resistor R1 is 1K Ω.
The second embodiment is as follows: the present embodiment is described with reference to fig. 4, and the present embodiment is further limited to the automatic dehumidification device of the distribution automation ring main unit according to the first embodiment, in the present embodiment, the dehumidifier 2 includes a housing 2-1, a compressor 2-2, a condenser 2-3, an evaporator 2-4, a collector 2-5 and a fan 4;
the condenser 2-3, the evaporator 2-4, the collector 2-5 and the fan 4 are all arranged inside the shell 2-1;
an air outlet is arranged at the top of the shell 2-1 and is an air outlet of the dehumidifier 2; the side wall of the shell 2-1 is provided with an air inlet which is an air inlet of the dehumidifier 2;
the air outlet of the compressor 2-2 is communicated with the air inlet of the condenser 2-3 through a sealing pipe; the air outlet of the condenser 2-3 is communicated with the air inlet of the evaporator 2-4, and the air outlet of the evaporator 2-4 is communicated with the air inlet of the compressor 2-2 through a sealing pipe;
the collector 2-5 is arranged right below the evaporator 2-4, the collector 2-5 is funnel-shaped, condensed water discharged by the evaporator 2-4 flows in from the top end of the collector 2-5 and is discharged from the bottom end of the collector 2-5, and a water outlet at the bottom end of the collector 2-5 is a condensed water outlet of the dehumidifier 2;
one terminal of the compressor 2-2 is connected with the negative electrode of the power supply U1, and the other terminal of the compressor 2-2 is connected with a normally open contact of the relay J;
the fan 4 is arranged at an air outlet inside the shell 2-1; and the fan 4 is connected in parallel to both ends of the compressor 2-2.
In the present embodiment, an internal circulation system is constituted by the compressor 2-2, the condenser 2-3, and the evaporator 2-4; through the operation of the compressor 2-2, high-temperature and high-pressure gas is discharged from the gas outlet of the compressor 2-2, the high-temperature and high-pressure gas enters the condenser 2-3 to be cooled and changed into low-temperature and low-pressure liquid, the low-temperature and low-pressure liquid enters the evaporator 2-4, the evaporator 2-4 evaporates and absorbs heat, and the low-temperature and low-pressure liquid returns to the compressor 2-2 to be changed into low-temperature and low-pressure gas.
In the embodiment, the fan 4 and the compressor 2-2 operate synchronously, moist air is sucked from the air inlet on the side wall of the shell 2-1 through the operation of the fan 4, when the moist air passes through the evaporator 2-4, the evaporator 2-4 absorbs heat, moisture in the moist air is adsorbed on the outer wall of the evaporator 2-4, the moist air is changed into dry air, and the dry air is discharged from the air outlet on the top of the shell 2-1 through the heat dissipation of the condenser 2-3; the process forms an air external circulation system; the fan 4 is used for promoting the operation of the air external circulation system and improving the dehumidification effect of the dehumidifier 2.
The third concrete implementation mode: in the present embodiment, the automatic dehumidification device of the distribution automation ring main unit according to the first embodiment is further defined, in the present embodiment, the automatic dehumidification circuit is disposed on the circuit board 8;
the circuit board 8 is fixed on the inner side of the side wall of the ring main unit 1.
In the present embodiment, in order to reduce the possibility of the circuit board 8 being damaged, a protective cover is added outside the circuit board 8.
The fourth concrete implementation mode: in the present embodiment, the automatic dehumidification device of the distribution automation ring main unit according to the first embodiment is further defined, and in the present embodiment, the automatic dehumidification device includes a flow guide pipe 5;
one end of the flow guide pipe 5 is communicated with a condensed water outlet of the dehumidifier 2, and the other end of the flow guide pipe 5 is communicated with a drainage ditch.
The fifth concrete implementation mode: in this embodiment, the automatic dehumidification device of the distribution automation ring main unit is further defined as the first specific embodiment, and in this embodiment, the triode Q is a PNP-type triode.
Claims (5)
1. An automatic dehumidification device of a distribution automation ring main unit is arranged on the side wall of a ring main unit (1); the automatic dehumidifying apparatus includes a dehumidifier (2);
an air outlet is formed in the top surface of the dehumidifier (2), an air inlet is formed in the side surface of the dehumidifier (2), and a condensed water outlet is formed in the bottom of the dehumidifier (2); humid air is sucked in from an air inlet of the dehumidifier (2), and water molecules in the humid air are discharged in a condensed water mode by the dehumidifier (2) and simultaneously dry air is discharged; wherein, the condensed water is discharged from the condensed water outlet, and the dry air is discharged from the air outlet;
the dehumidifier (2) is powered by a power supply U1;
the automatic dehumidifying device is characterized by also comprising an air outlet pipe (3) and an automatic dehumidifying circuit;
an air outlet through hole (6) is formed in the upper part of the same side wall of the ring main unit (1), and an air inlet through hole (7) is formed in the lower part of the same side wall of the ring main unit;
the top end of the air outlet pipe (3) is communicated with the interior of the ring main unit (1) through an air outlet through hole (6), and the bottom end of the air outlet pipe (3) is communicated with an air outlet of the dehumidifier (2); an air inlet of the dehumidifier (2) is communicated with the inside of the ring main unit (1) through an air inlet through hole (7);
the automatic dehumidification circuit comprises a power supply Vcc, a relay J, a resistor R1, a humidity sensitive resistor R2 and a triode Q;
one end of a coil of the relay J is connected with the output end of a power supply Vcc, and the other end of the coil of the relay J is connected with an emitting electrode of the triode Q; the base electrode of the triode Q is connected with one terminal of a humidity-sensitive resistor R2, the other terminal of a humidity-sensitive resistor R2 is connected with one end of a resistor R1, and the other end of the resistor R1 is grounded; the collector of the triode Q is grounded;
a switch common terminal of the relay J is connected with a positive electrode of a power supply U1, a negative electrode of the power supply U1 is connected with one terminal of the dehumidifier (2), and the other terminal of the dehumidifier (2) is connected with a normally open contact of a switch of the relay J;
the humidity sensitive resistor R2 is arranged inside the ring main unit (1).
2. The automatic dehumidification device of the distribution automation ring main unit as claimed in claim 1, wherein the dehumidifier (2) comprises a housing (2-1), a compressor (2-2), a condenser (2-3), an evaporator (2-4), a collector (2-5) and a fan (4);
the condenser (2-3), the evaporator (2-4), the collector (2-5) and the fan (4) are all arranged inside the shell (2-1);
an air outlet is arranged at the top of the shell (2-1), and the air outlet is an air outlet of the dehumidifier (2); the side wall of the shell (2-1) is provided with an air inlet which is an air inlet of the dehumidifier (2);
the air outlet of the compressor (2-2) is communicated with the air inlet of the condenser (2-3) through a sealing pipe; the air outlet of the condenser (2-3) is communicated with the air inlet of the evaporator (2-4), and the air outlet of the evaporator (2-4) is communicated with the air inlet of the compressor (2-2) through a sealing pipe;
the collector (2-5) is arranged right below the evaporator (2-4), the collector (2-5) is funnel-shaped, condensed water discharged by the evaporator (2-4) flows in from the top end of the collector (2-5) and is discharged from the bottom end of the collector (2-5), and a water outlet at the bottom end of the collector (2-5) is a condensed water outlet of the dehumidifier (2);
one terminal of the compressor (2-2) is connected with the negative pole of the power supply U1, and the other terminal of the compressor (2-2) is connected with the normally open contact of the relay J;
the fan (4) is arranged at an air outlet inside the shell (2-1); meanwhile, the fan (4) is connected in parallel with the two ends of the compressor (2-2).
3. The automatic dehumidification device of the distribution automation ring main unit according to claim 1, wherein the automatic dehumidification circuit is disposed on the circuit board (8);
the circuit board (8) is fixed on the inner side of the side wall of the ring main unit (1).
4. The automatic dehumidification device of the distribution automation ring main unit according to claim 1, characterized in that the automatic dehumidification device comprises a draft tube (5);
one end of the flow guide pipe (5) is communicated with a condensed water outlet of the dehumidifier (2), and the other end of the flow guide pipe (5) is communicated with a drainage ditch.
5. The automatic dehumidification device of the power distribution automation ring main unit as claimed in claim 1, wherein the triode Q is a PNP type triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021498748.6U CN212680575U (en) | 2020-07-23 | 2020-07-23 | Automatic dehydrating unit of distribution automation looped netowrk cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021498748.6U CN212680575U (en) | 2020-07-23 | 2020-07-23 | Automatic dehydrating unit of distribution automation looped netowrk cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212680575U true CN212680575U (en) | 2021-03-12 |
Family
ID=74899518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021498748.6U Active CN212680575U (en) | 2020-07-23 | 2020-07-23 | Automatic dehydrating unit of distribution automation looped netowrk cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212680575U (en) |
-
2020
- 2020-07-23 CN CN202021498748.6U patent/CN212680575U/en active Active
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