CN208782423U - The anti-condensation system of the cooling of low-voltage cable junction box - Google Patents
The anti-condensation system of the cooling of low-voltage cable junction box Download PDFInfo
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- CN208782423U CN208782423U CN201821549333.XU CN201821549333U CN208782423U CN 208782423 U CN208782423 U CN 208782423U CN 201821549333 U CN201821549333 U CN 201821549333U CN 208782423 U CN208782423 U CN 208782423U
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Abstract
The utility model discloses a kind of anti-condensation systems of the cooling of low-voltage cable junction box, including being set to Temperature Humidity Sensor in the cabinet of interior of the cabinet, Temperature Humidity Sensor and control cabinet in the cabinet being set to outside cabinet body, fresh-air fan and microcontroller are equipped in control cabinet, for blasting outside air into cabinet body and making to generate air pressure difference between cabinet body and cable shaft, the state that opens or closes of fresh-air fan is automatically controlled fresh-air fan by microcontroller.The utility model can overcome cooled down in the prior art using the modes such as heater, dewatering type electronic dehumidifying device it is anti-condensation existing insufficient, environmental parameter in automatic detection and adjusting feeder pillar, improve the service condition of cable branch box equipment, electrical equipment malfunction probability is reduced, the reliability of equipment operation and power supply is improved.
Description
Technical field
The utility model relates to a kind of anti-condensation systems of the cooling of low-voltage cable junction box.
Background technique
For cable branch box for cable to be got in touch with and distributed, the safe operation of cable branch box is power grid maintenance work
Pith.Wherein it is anti-condensation improvement be weight among, once case in occur condensation, cable branch chamber interior wall condensation droplet
It may be dropped on the cable T connector of operation under gravity, decline its dielectric strength, generate electric discharge phenomena, it is long
Time operation easily causes short circuit accident, causes T connector to explode, entire feeder pillar may be made to scrap when serious.It is currently used
Except condensation measure is mostly following three kinds of forms: first is that installing heater in case additional, optionally manually opening or closing heater；Second is that
In case in addition to equipped with heater, then condensation sensor is set, to control the switching of heater；Third is that installation dewatering type is electric in the case
Sub- dehumidifier.In place of above-mentioned three kinds of modes come with some shortcomings:
The first form instead easily comes up the aqueous vapor evaporation in bottom cable duct after temperature increases in the case, makes wet in case
Degree increases, and heater longtime running energy waste is big, leads in case that temperature rise is excessively high to carry out security risk to equipment belt；Second of shape
In formula, condensation sensor is all passive-type movement, causes heater starting to have certain amount of lagging, and condensation sensor is long-term
Its sensitivity can be changed after by the chemical attacks in dust and moisture, cause anti-condensation control point deviation occur, equally
It will appear and heated in case and bring negatively affects；In the third form, due to the general power of dewatering type electronic dehumidifying device all compared with
Small, moisture removal is limited, and frost can be generated when environment temperature is lower, causes effect on moisture extraction unobvious, high failure rate, by
In the case in its installation, it is not easy to safeguard.
In addition, high temperature easily shortens electric elements, insulator aging life-span in feeder pillar, high humidity easily causes switch cabinet bus
Room is discharged, and dust stratification can easily climb electricity, pollution flashover accident in case.And cable branch box is generally communicated with case outer cable ditch, outside case
It can be continuously added into case with the humid air of cable duct, blocking bottom portion disengaging cable gap with clay may only be reduced
The steam in case is entered from cable shaft, but can not be prevented, dehumidification work amount is big.
Utility model content
In view of the above technical problems, the utility model provides a kind of anti-condensation system of cooling of low-voltage cable junction box,
Its compact structure is easy to build, can overcome cooled down in the prior art using the modes such as heater, dewatering type electronic dehumidifying device it is anti-
It is solidifying existing insufficient, it is automatic to detect and adjust the environmental parameter in feeder pillar, improve the service condition of cable branch box equipment, drop
Low electrical equipment malfunction probability improves the reliability of equipment operation and power supply.
To realize the above-mentioned technical purpose, the utility model adopts the technical scheme that
A kind of anti-condensation system of the cooling of low-voltage cable junction box, including cabinet body and the cable shaft for being set to bottom of cabinet bulk,
It is characterized by comprising be set to Temperature Humidity Sensor in the cabinet of interior of the cabinet, temperature and humidity passes outside the cabinet being set to outside cabinet body
Sensor and control cabinet, the side wall of the cabinet body are equipped with air inlet, are equipped with fresh-air fan and microcontroller, fresh air wind in control cabinet
Machine is mounted on the outer wall of cabinet body and connect with air inlet, fresh-air fan for outside air is blasted into cabinet body and make cabinet body with
Air pressure difference is generated between cable shaft, air inlet is equipped with filter；The outer temperature and humidity sensing of Temperature Humidity Sensor, cabinet in the cabinet
Device and fresh-air fan are all connected with microcontroller, and microcontroller receives and processes the temperature and humidity information inside and outside cabinet body, fresh-air fan
State is opened or closed to be automatically controlled by microcontroller.
Preferably, the cabinet body external temperature is greater than or equal to interior of the cabinet temperature, cabinet body external temperature lower than default
When three conditions that the outer temperature upper limit value of cabinet, interior of the cabinet humidity are lower than default cabinet humidity lower limit value meet simultaneously, fresh air wind
Organ closes；The cabinet body external temperature is less than or equal to the value after interior of the cabinet current value subtracts 1 DEG C, cabinet body external temperature is greater than
When the condition that temperature upper limit or interior of the cabinet humidity are higher than default cabinet humidity upper limit value outside default cabinet meets any one,
Fresh-air fan is opened.
Preferably, the microcontroller is equipped with for the GPRS module and GPS module with power system monitor center to center communications simultaneously
Equipped with corresponding output terminal.
Preferably, the cabinet body is equipped with cabinet door, the intracorporal electrical equipment of cabinet and cabinet door are equipped with connection microcontroller
State sensor.
Preferably, the cabinet body and air inlet position are equipped with air outlet at the side wall of diagonally opposing corner, it is arranged at air outlet
Connect the exhaust blower of microcontroller.
Preferably, the fresh-air fan uses centrifugal blower.
The anti-condensation system of the cooling of the low-voltage cable junction box of the utility model is a kind of based on sensor application, computer
Automatic control technology intelligent Application system, after opening fresh-air fan, wind is in the entrance case of ecto-entad, so that low always
Air pressure in voltage cable feeder pillar forms barotropic state, prevents the moisture of low-voltage cable junction box cable shaft from entering in case.
Air inlet and air outlet form that diagonal, its distance is farthest, and air circulation is bigger, if position from be closely also easy to produce very much and alter wind.This
Utility model by application object environment temperature and humidity etc. data acquisition and fusions, after processing by the control for setting or automatically generating
Policy-driven execution unit processed realizes the guiding and flow velocity control of air-flow, is aided with air port selection and arrangement, blower optimization, sky
Specific techniques and the means such as gas purification, air pressure difference control, anomalous discrimination and alarm, realize the Partial little climate in space in case
Transformation, integration solve the problems, such as many running environment of electrical equipment, are effectively improved the service condition of cable branch box equipment, drop
Low electrical equipment malfunction probability improves the reliability of equipment operation and power supply.
By adopting the above-described technical solution, the utility model has the following technical effect that
(1), by the effect of system fresh-air fan (power 28w), the hair in solar radiation heat transfer cause case can be balanced
Heat, it is ensured that equipment is run under the environment temperature of safety；
(2), the outer meteorological condition of case is made full use of, it, will be opposite in low-humidity air displacement case opposite outside case by intelligent control
Highly humid air carrys out the humidity of air in control ring net cage；
(3), it pressurizes through fresh-air fan, makes feeder pillar with air pressure difference is generated between cable shaft, prevented cable shaft humid air
Into feeder pillar, the water capacity of air in case is reduced, it is ensured that the dew-point temperature of air is lower than box equipment surface temperature in case,
It is anti-condensation in case to achieve the purpose that；
(4), high efficiency filter is carried out to air outside the case of entrance, while keeps positive pressure in case, ensure that air in feeder pillar
Cleaning；
(5), it detects from the noise ﹤ 40dB at 1 meter of system host；
(6), each environmental information warning message of feeder pillar can reach the monitor supervision platform of grid company.
Detailed description of the invention
The utility model will illustrate by example and with reference to the appended drawing, in which:
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the functional block diagram of microcontroller in Fig. 1.
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification unless specifically stated can be equivalent or with similar purpose by other
Alternative features are replaced.That is, unless specifically stated, each feature is an example in a series of equivalent or similar characteristics
?.
A kind of anti-condensation system of cooling of low-voltage cable junction box as shown in Figure 1, including cabinet body 1, it is set to 1 bottom of cabinet body
Temperature Humidity Sensor 2, the outer temperature and humidity of the cabinet being set to outside cabinet body 1 pass in the cable shaft 10 in portion, the cabinet being set to inside cabinet body 1
Feel 3 devices and control cabinet 4, wherein the side wall of cabinet body 1 is equipped with air inlet, it is equipped with fresh-air fan 5 and microcontroller 6 in control cabinet 4,
Fresh-air fan 5 is mounted on the outer wall of cabinet body 1 and connect with air inlet, and fresh-air fan 5 is for blasting outside air into cabinet body 1
And make to generate air pressure difference between cabinet body 1 and cable shaft 10, air inlet is equipped with filter；Temperature Humidity Sensor 2 in the cabinet,
The outer Temperature Humidity Sensor 3 of cabinet and fresh-air fan 5 are all connected with microcontroller 6, and microcontroller 6 receives and processes the temperature inside and outside cabinet body 1
The state that opens or closes of humidity information, fresh-air fan 5 is automatically controlled by microcontroller 6.
In the utility model, centrifugal blower is can be used in fresh-air fan, and the switching condition of blower is specific as follows:
Meet following three conditions simultaneously, close blower:
(1), in-cabinet temperature current value < in-cabinet temperature lower limit value；
(2), cabinet humidity current value < cabinet humidity lower limit value；
(3), the outer temperature current value >=in-cabinet temperature current value of cabinet.
Meet any one following condition, open blower:
(1), in-cabinet temperature current value > in-cabinet temperature upper limit value；
(2), cabinet humidity current value > cabinet humidity upper limit value；
(3), outer temperature current value≤- 1 DEG C of the in-cabinet temperature current value of cabinet.
Wherein the outer temperature upper lower limit value of cabinet, cabinet humidity upper lower limit value are settable.
As shown in Fig. 2, microcontroller 6 is preferably provided with for the GPRS with power system monitor center to center communications in the utility model
Module and GPS module are simultaneously equipped with corresponding output terminal, make this system not only and have the intelligence pipe to equipment (blower, dehumidifier)
Function is managed, and the teletransmission of various information can be realized by GPRS, cable network, there is GPS positioning, fortune when issuing alarm
Dimension personnel can grasp the running environment and warning message of cable branch box at the first time, find the problem in time, quickly handle, mention
The high safety and reliability of cable branch box equipment operation.
The cabinet body 1 of the utility model is equipped with cabinet door, and the electrical equipment and cabinet door in cabinet body 1 are equipped with connection microcontroller 6
State sensor, for microcontroller transmit states of cabinet door information.Microcontroller 6 can be equipped with alarm, following several
Signal an alert when situation occurs, or to power system monitor center signal an alert:
(1), inside and outside cabinet when sensor failure, system issues alarm；
(2), up to the alarming value being arranged, system all issues alarm for the outer temperature of cabinet or cabinet humidity.When in temperature outside cabinet or cabinet
Humidity drops to alarming value hereinafter, alarm is cancelled；
(3), when chamber door is opened, system receives opening signal, and system issues alarm.When closing the door carefully, alarm is removed
Disappear；
(4), when blower breaks down, system issues alarm；
(5), when equipment is moved, system issues alarming shift.
As the another preferred of the utility model, the side wall opposite with air inlet position of cabinet body 1 is equipped with air outlet, outlet air
The exhaust blower of setting connection microcontroller 6, increases air draft degassing function at mouthful.
The utility model is not limited to specific embodiment above-mentioned.The utility model expands to any in this specification
The new feature of middle disclosure or any new combination, and disclose any new method or process the step of or any new group
It closes.
Claims (6)
1. a kind of anti-condensation system of the cooling of low-voltage cable junction box, including cabinet body (1) and it is set to the cable of cabinet body (1) bottom
Well (10), it is characterised in that: including being set to Temperature Humidity Sensor (2) in the internal cabinet of cabinet body (1), being set to cabinet body (1) outside
The outer Temperature Humidity Sensor (3) of the cabinet in portion and control cabinet (4), the side wall of the cabinet body (1) are equipped with air inlet, and control cabinet (4) is interior
Equipped with fresh-air fan (5) and microcontroller (6), fresh-air fan (5) is mounted on the outer wall of cabinet body (1) and connect with air inlet,
Fresh-air fan (5) is used to blast outside air into cabinet body (1) and makes to generate air pressure between cabinet body (1) and cable shaft (10)
Difference, air inlet are equipped with filter；The outer Temperature Humidity Sensor (3) of Temperature Humidity Sensor (2), cabinet and fresh-air fan in the cabinet
(5) it is all connected with microcontroller (6), microcontroller (6) receives and processes the temperature and humidity information inside and outside cabinet body (1), fresh-air fan (5)
Open or close state by microcontroller (6) automatically control.
2. the anti-condensation system of the cooling of low-voltage cable junction box according to claim 1, it is characterised in that: outside the cabinet body
Portion's temperature is greater than or equal to interior of the cabinet temperature, cabinet body external temperature is lower than default cabinet outer temperature upper limit value, interior of the cabinet humidity
When three conditions lower than default cabinet humidity lower limit value meet simultaneously, fresh-air fan (5) is closed；The cabinet body external temperature is low
Value, cabinet body external temperature after interior of the cabinet current value subtracts 1 DEG C are greater than temperature upper limit or cabinet outside default cabinet
When the condition that body interior humidity is higher than default cabinet humidity upper limit value meets any one, fresh-air fan (5) is opened.
3. the anti-condensation system of the cooling of low-voltage cable junction box according to claim 1, it is characterised in that: the microcontroller
Device (6) is equipped with for the GPRS module of power system monitor center to center communications and GPS module and equipped with corresponding output terminal.
4. the anti-condensation system of the cooling of low-voltage cable junction box according to claim 1, it is characterised in that: the cabinet body
(1) it is equipped with cabinet door, the electrical equipment and cabinet door in cabinet body (1) are equipped with the state sensor of connection microcontroller (6).
5. the anti-condensation system of the cooling of low-voltage cable junction box according to claim 1, it is characterised in that: the cabinet body
(1) it is equipped with air outlet at the side wall of diagonally opposing corner with air inlet position, the air draft of setting connection microcontroller (6) at air outlet
Machine.
6. the anti-condensation system of the cooling of low-voltage cable junction box according to claim 1, it is characterised in that: the fresh air wind
Machine (5) uses centrifugal blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821549333.XU CN208782423U (en) | 2018-09-21 | 2018-09-21 | The anti-condensation system of the cooling of low-voltage cable junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821549333.XU CN208782423U (en) | 2018-09-21 | 2018-09-21 | The anti-condensation system of the cooling of low-voltage cable junction box |
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| Publication Number | Publication Date |
|---|---|
| CN208782423U true CN208782423U (en) | 2019-04-23 |
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ID=66162186
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821549333.XU Active CN208782423U (en) | 2018-09-21 | 2018-09-21 | The anti-condensation system of the cooling of low-voltage cable junction box |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110932145A (en) * | 2019-12-30 | 2020-03-27 | 国网福建省电力有限公司 | Anti-condensation control method for ring net cage |
| CN113889888A (en) * | 2021-12-06 | 2022-01-04 | 德阳得瑞宝防爆科技有限公司 | Explosion-proof power distribution cabinet for petroleum drilling and control method thereof |
| CN114498529A (en) * | 2022-02-14 | 2022-05-13 | 江西俊朗电力装备有限公司 | Low-fault cable branch box |
| CN116231473A (en) * | 2023-05-11 | 2023-06-06 | 泰森电气有限公司 | Switch board with automatic alarm function |
| CN117311417A (en) * | 2023-11-30 | 2023-12-29 | 山东泽林农业科技有限公司 | Intelligent agricultural information comprehensive management method and system based on Internet of things |
-
2018
- 2018-09-21 CN CN201821549333.XU patent/CN208782423U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110932145A (en) * | 2019-12-30 | 2020-03-27 | 国网福建省电力有限公司 | Anti-condensation control method for ring net cage |
| CN110932145B (en) * | 2019-12-30 | 2021-07-27 | 国网福建省电力有限公司 | Anti-condensation control method for ring net cage |
| CN113889888A (en) * | 2021-12-06 | 2022-01-04 | 德阳得瑞宝防爆科技有限公司 | Explosion-proof power distribution cabinet for petroleum drilling and control method thereof |
| CN114498529A (en) * | 2022-02-14 | 2022-05-13 | 江西俊朗电力装备有限公司 | Low-fault cable branch box |
| CN114498529B (en) * | 2022-02-14 | 2023-08-25 | 江西俊朗电力装备有限公司 | Low-fault cable branch box |
| CN116231473A (en) * | 2023-05-11 | 2023-06-06 | 泰森电气有限公司 | Switch board with automatic alarm function |
| CN116231473B (en) * | 2023-05-11 | 2023-07-21 | 泰森电气有限公司 | Switch board with automatic alarm function |
| CN117311417A (en) * | 2023-11-30 | 2023-12-29 | 山东泽林农业科技有限公司 | Intelligent agricultural information comprehensive management method and system based on Internet of things |
| CN117311417B (en) * | 2023-11-30 | 2024-02-06 | 山东泽林农业科技有限公司 | Intelligent agricultural information comprehensive management method and system based on Internet of things |
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