CN206894122U - A kind of anti-condensation device of enclosed busbar - Google Patents
A kind of anti-condensation device of enclosed busbar Download PDFInfo
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- CN206894122U CN206894122U CN201720426727.5U CN201720426727U CN206894122U CN 206894122 U CN206894122 U CN 206894122U CN 201720426727 U CN201720426727 U CN 201720426727U CN 206894122 U CN206894122 U CN 206894122U
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- enclosed busbar
- steam line
- air
- main equipment
- equipment cabinet
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Abstract
A kind of anti-condensation device of enclosed busbar, belongs to anti-condensation technical field.Including：Main equipment cabinet, the first steam line, the second steam line, return-air duct and sampling sensor group；Main equipment cabinet is connected to the first steam line, and the first steam line is connected with enclosed busbar AC two, and AC two-phases are connected by the second steam line with B, and B phases pass through return-air duct and main equipment cabinet UNICOM；Sampling sensor is assembled in the enclosure of enclosed busbar.Advantage is, the ion unit that disappears is provided with interphase gas UNICOM pipeline, is avoided because charged ion intercommunication causes phase fault accident；Evaded air circulation drying apparatus because respiration cause surrounding air to be directly entered inside bus the problem of, while but also with dehumidification function.
Description
Technical field
The utility model belongs to anti-condensation technical field, more particularly to a kind of anti-condensation device of enclosed busbar.Especially relate to
A kind of and anti-condensation device for being used to make steel the supporting power plant's enclosed busbar of ironmaking system.
Background technology
Enclosed busbar is widely used in a kind of high current transmitting device of power plant, electric substation, industry and civilian power supply.Such as
Shown in Fig. 1, enclosed busbar generally includes A phases, B phases and C phase three-phases, and the shell of this three-phase enclosed busbar is mutually parallel across a certain distance
Set.
A kind of servicing unit of the anti-condensation device as enclosed busbar safe operation, ambient humidity is big, outdoor temperature is low
And during maintenance down, good air ambient and the higher electric insulation of maintenance are horizontal in the closure for ensureing bus
Play the effect of key, especially to industrial auxiliary generator group, because plant environment is complicated, selection be suitable for plant environment and
The anti-condensation device of operation characteristic is even more important.
The method of anti-condensation that the country generally uses at present is has two kinds, one is by inside closed enclosed busbar
The gas being filled with after dry, filtering, makes bus air pressure inside be slightly above ambient atmosphere pressure, female so as to prevent dust, moisture from entering
Inside line, do not possess circulatory function, commonly referred to as micro positive pressure device；Another kind is by constantly to the gas inside enclosed busbar
Circulating filtration, heating, dehumidifying are carried out, so as to reach the purpose for reducing bus inner air humidity, commonly referred to as air circulation is done
Dry device.
By taking ironmaking enterprise of North China of China blown power plant as an example, on-site air quality is poor, and air purity is low,
Winter climate is cold, and factory building internal-external temperature difference is larger.Compressor emergency shutdown maintenance after or first start before, in wet weather or the temperature difference
Possible humidity is larger in bus in the case of larger, and insulaion resistance is low, and difficulty is caused to unit starting, to normal industrial production
Impact.Because commonly used micro positive pressure device does not possess circulatory function, its to enclosed busbar product in maintenance down or
The moisture and dust come into before startup inside bus is helpless；And although air circulation drying apparatus solves unit and opened
Enclosed busbar internal condensation during dynamic, but due to not carrying out strict seal operation to bus, with unit continuous service, envelope
The gas of undried dedusting in environment can constantly be received by closing the respiration of bus, and the time runs cumulative, enclosed busbar
Built-in electrical insulation performance can still be affected.
In addition, conventional air circulation drying apparatus is not provided with the alternate ion device that disappears, its substantial amounts of recyclegas drives
The internally charged ion of enclosed busbar carries out alternate circulation, adds the probability of enclosed busbar phase fault, also run counter to from
Phase enclosed busbar is directed to the original intention that three-phase sets shell to prevent phase fault respectively.
The content of the invention
The purpose of this utility model is to provide a kind of anti-condensation device of enclosed busbar solve enclosed busbar mutually easily
The problem of short-circuit.It carries out enclosed circulating dehumidification work using air compressor in enclosed busbar shell, in the winter time gas
Ensure the condition for not possessing condensation in enclosed busbar shell or freezing under conditions of time is cold.
A kind of anti-condensation device of enclosed busbar, the enclosed busbar include the three-phase bus be arrangeding in parallel, and device includes：
Main equipment cabinet 11, the first steam line 13, the second steam line 14, return-air duct 12 and sampling sensor group；Main equipment cabinet 11
The first steam line 13 is connected to, the first steam line 13 is connected with enclosed busbar AC two, and AC two-phases pass through the second air supply pipe
Road 14 and B is connected, and B phases pass through return-air duct 12 and the UNICOM of main equipment cabinet 11；There are air compressor 1, storage in main equipment cabinet 11
Gas tank 2, filter 3, adsorption machine 4, programmable controller 9, wherein air compressor 1 are connected with air accumulator 2, air accumulator 2 and mistake
Filter 3 is connected, and filter 3 is connected to adsorption machine 4, and air compressor 1 and each equipment junction are controlled by programmable controller 9
Start and stop, the opening and closing of valve；Sampling sensor is assembled in the enclosure of enclosed busbar, the sampled signal output of sampling sensor group
To the control system.
Sampling sensor group includes pressure sensor 5, temperature sensor 6 and dew point transducer 7, is installed in enclosed busbar
On, to gather bus inner air data.
One end of first steam line 13 connects with the output end of air filtration drying system, its other end respectively with three-phase
The enclosure connection of wherein two-phase bus in bus；
Second steam line 14 is the three-way pipe for connecting the enclosure of three-phase bus；
One end of return-air duct 12 connects with the enclosure of the other phase bus in three-phase bus, its other end and sky
The input connection of gas filtration drying system.
Air filtration drying system includes：For providing the air compressor for the pressure-fired gas for being delivered to enclosed busbar,
The air accumulator connected with the output end of air compressor, air cleaner, and for reduce pressure-fired gas humidity it is dry
Dry device；
One end of first steam line 13 connects with the output end of the adsorption machine.
Sampling sensor group includes being used for the pressure sensor 6 for monitoring the gas pressure in enclosed busbar, and monitoring closing is female
The temperature sensor 5 of temperature in line, and for monitoring the dew point transducer 7 of dew point in enclosed busbar.
The gas pressure sensor has first threshold and Second Threshold, first threshold 350Pa, the Second Threshold
For 3000Pa.
Air filtration drying system is disposed in the interior in environment, and described drying device is heatless regeneration formula adsorption machine.
Air compressor is screw air compressor.
Drying device includes being used to show the sampled signal and controls the touch LCD screen of the control system.
Temperature sensor includes the infrared thermometry device for being arranged at enclosed busbar enclosure.
Enclosed busbar anti-condensation device of the present utility model is connected by the head end and tail end respectively with three-phase enclosed busbar
Steam line and return-air duct, formd in the shell of three-phase enclosed busbar one circulation pressure-fired gas passage, energy
It is enough that dry pressure-fired gas is constantly passed through into enclosed busbar, so as to prevent in enclosed busbar due to high humidity and caused by
The situation that insulaion resistance is low, even condenses.
Enclosed busbar anti-condensation device of the present utility model is by setting the filtration system that dehumidifies, in the shell of enclosed busbar
Humidity is larger, or compressor emergency shutdown maintenance after or first start before can to carrying out dehumidifying work in enclosed busbar, so as to
It can solve the problem that the condensation trouble of enclosed busbar.
The utility model has the advantage of：There is provided programmable control module, can be set respectively for different application environment
Mode of operation and parameter are put, so that equipment has wide applicability and expansion；Set on interphase gas UNICOM pipeline
The ion unit that disappears, is avoided because charged ion intercommunication causes phase fault accident；Using pressure-fired mode, air circulation is evaded
Drying device because respiration cause surrounding air to be directly entered inside bus the problem of, while but also with dehumidification function, make up
The defects of micro positive pressure device is to the existing moisture in bus inside helpless.
Brief description of the drawings
Fig. 1 is the internal structure schematic diagram of the present apparatus.Wherein, air compressor 1, air accumulator 2, filter 3, adsorption machine 4,
Supplement source of the gas 8, programmable controller 9, main equipment cabinet 11, return-air duct 12, the first steam line 13.
Fig. 2 is the scheme of installation of the present apparatus.Wherein, main equipment cabinet 11, return-air duct 12, the first steam line 13,
Two steam lines 14.
Fig. 3 is the principle line schematic diagram of the present apparatus.Wherein, air compressor 1, air accumulator 2, filter 3, adsorption machine 4,
Pressure sensor 5, temperature sensor 6, dew point transducer 7, supplement source of the gas 8, the second steam line 14.
Embodiment
Fig. 1-Fig. 3 is a kind of specific implementation method of the present utility model.
A kind of anti-condensation device of enclosed busbar, the enclosed busbar include the three-phase bus be arrangeding in parallel, and device includes：
Main equipment cabinet 11, the first steam line 13, the second steam line 14, return-air duct 12 and sampling sensor group；Main equipment cabinet 11
The first steam line 13 is connected to, the first steam line 13 is connected with enclosed busbar AC two, and AC two-phases pass through the second air supply pipe
Road 14 and B is connected, and B phases pass through return-air duct 12 and the UNICOM of main equipment cabinet 11；There are air compressor 1, storage in main equipment cabinet 11
Gas tank 2, filter 3, adsorption machine 4, programmable controller 9, wherein air compressor 1 are connected with air accumulator 2, air accumulator 2 and mistake
Filter 3 is connected, and filter 3 is connected to adsorption machine 4, and air compressor 1 and each equipment junction are controlled by programmable controller 9
Start and stop, the opening and closing of valve；Sampling sensor is assembled in the enclosure of enclosed busbar, the sampled signal output of sampling sensor group
To the control system.
It carries out enclosed circulating dehumidification work using air compressor in enclosed busbar shell, in steel-making ironmaking etc.
Under complex industrial environment, ensure inside enclosed busbar.
Fig. 1 is the internal structure schematic diagram of enclosed busbar anti-condensation device of the present utility model.
Fig. 2 is the mounting structure schematic diagram of enclosed busbar anti-condensation device of the present utility model.As shown in Fig. 2 closing is female
Line includes the three-phase bus be arrangeding in parallel, respectively A phases, B phases and C phases.Enclosed busbar anti-condensation device bag of the present utility model
Include：For providing the air filtration drying system 11 for the pressure-fired gas for being delivered to enclosed busbar, for according in enclosed busbar
Gas pressure start or stop the control system 9 of air filtration drying system 11, the air filtration drying system is exported
Pressure-fired gas be delivered to the steam line of enclosed busbar, and the gas in enclosed busbar is delivered to air filtration and dried
The return-air duct 12 of system 11.
Wherein, steam line includes the first steam line 13 and the second steam line 14.One end of first steam line 13
Connected with the output end of air filtration drying system 11, its other end shell with the wherein two-phase bus in three-phase bus respectively
Inside connection.Shown in Fig. 2 to be connected respectively with the A phases positioned at B phase buses both sides and the enclosure of C phases.
A, B, C three-phase in tail end UNICOM, and are set the alternate ion unit that disappears by the second steam line 14 in the duct.Together
When, one end of return-air duct 12 connects with the enclosure of the other phase bus in three-phase bus, shown in Fig. 2 be and B
The enclosure connection of phase, the other end of return-air duct 12 connect with the input of air filtration drying system 11.
Connected with the enclosure of three-phase bus by steam line and return-air duct, done in enclosed busbar and air filtration
The peripheral passage of a pressure-fired gas is formd between drying system 11.That is, air filtration drying system 11 is in control system
Start under control, pressure-fired dry gas of the output by filtering in the shell of phase enclosed busbar.The gas is done from air filtration
The output end output of drying system 11, is passed through in the shell of A phases and C phases, and pass through three-phase bus by the first steam line 13
Second steam line 14 of connection is passed through in the shell of B phases, is then back to by the return-air duct 12 connected with the shell of B phases
The input of air filtration drying system 11 filters, dehumidified again.
Enclosed busbar anti-condensation device of the present utility model carries out enclosed circulating dehumidification in the shell of enclosed busbar
Work, it can be ensured that the environment dried in enclosed busbar, eliminate condensation or the condition to freeze from source, solve existing non-
The halfway shortcoming of dehumidifying possessed by the circulatory system.
Further, in order to form a relatively good circulation route in enclosed busbar, as shown in Fig. 2 the first supply
Pipeline 13 should connect with the head end of the wherein two-phase bus in three-phase bus, i.e., the head end with A phases, C phases connects, and second supplies
Feed channel 14 should connect with the tail end of the two-phase bus.Meanwhile return-air duct 12 should connect with the head end of other phase bus
Logical, i.e., the head end with B phases connects.Then input to the pressure-fired gas in enclosed busbar from A phases, C phases head end input, from A phases,
Second steam line 14 of C phase tail ends enters B phases, and is delivered to air filtration drying system from the return-air duct 12 of B phase head ends,
So that gas circulation path does not have blind spot in enclosed busbar, the humidity in enclosed busbar is preferably reduced.
Air filtration drying system in the utility model has the function that to provide pressure-fired gas, drying, filtering, the sky
Gas filtration drying system includes：For providing the air compressor for the pressure-fired gas for being delivered to enclosed busbar, with the air pressure
The air accumulator of the output end connection of contracting machine, air cleaner, and the adsorption machine of the humidity for reducing pressure-fired gas.
Fig. 3 shows the line schematic diagram of enclosed busbar anti-condensation device of the present utility model.As shown in figure 3, air pressure
Pressure-fired gas is delivered to air accumulator 2 by contracting machine 1, is then filtered by filter 3, after the adsorption and dehumidification of adsorption machine 4, passes through
One steam line is exported into the shell of A phase, B phase, C phase, and then cooled via return air pipeline is back to air compressor 1.It can also enter
One step includes the supplement source of the gas 8 for make-up gas, and it can convey gas into air compressor 1 or steam line.
Further, because the air filtration drying system in the utility model contains the adsorption machine 4 for dehumidifying, because
This, condensation situation can be had occurred and that in enclosed busbar or is dehumidified when condensation condition be present and dew point adjustment work.
Specifically, before can starting after compressor emergency shutdown maintenance or first, air filtration drying system is started by control system and removed
Wet work.In order to ensure adsorption machine efficiently works for a long time, affiliated control system also add adsorbent expire replacing prompting
Function.
In order to extend the service life of air filtration drying system and be easy to its maintenance, it is preferable that air filtration is done
Drying system is arranged in indoor environment.Because air filtration drying system of the present utility model has the function of dehumidifying, therefore, i.e.,
Air filtration drying system is arranged at indoor environment, can also avoid because indoor/outdoor temperature-difference is excessive causing in the prior art
Enclosed busbar in condense the occurrence of.
In order to be more accurately controlled to the air conditions in enclosed busbar, enclosed busbar anti-condensation of the present utility model
Device further comprises multiple sampling sensors, and it is arranged at the enclosure of enclosed busbar, for monitoring in enclosed busbar
The many indexs such as gas pressure, temperature, dew point, and its sampled signal is exported to control system, control system and believed according to sampling
Number the work of air filtration drying system is started or stoped, and provide fault detect, alarm and remote signaling output, detection are female
The function of line slip.
Wherein, as shown in figure 3, sampling sensor includes being used for the pressure sensor for monitoring the gas pressure in enclosed busbar
5, the temperature sensor 6 of the temperature in enclosed busbar is monitored, and for monitoring the dew point transducer 7 of dew point in enclosed busbar.
Wherein, two control thresholds, i.e., the pressure threshold in enclosed busbar can be set to pressure sensor 5.For example, first
Threshold value may be configured as 350Pa, and Second Threshold is arranged to 3000Pa.Then when the gas pressure in pressure sensor monitoring to enclosed busbar
When power is less than 350Pa, control system starts air filtration drying system and starts to inflate into enclosed busbar, when pressure sensor is supervised
When measuring the gas pressure in enclosed busbar and being higher than 3000Pa, control system stops the inflation work of air filtration drying system.
First threshold and Second Threshold can be adjusted according to the actual conditions of work.
Meanwhile the dew-point temperature in enclosed busbar can also be adjusted according to actual conditions.For example, it is desired to will closing mother
Dew-point temperature in line maintains less than -40 DEG C, then will be humidified first in enclosed busbar, humidity is reached 100%, then stop
Humidification, inflation cycle starting air filtration drying system by control system, and enclosed busbar is monitored by dew point transducer
Interior dew point, until the dew point in enclosed busbar is less than -40 DEG C.When dew point is undesirable, air filtration drying system meeting
Keep working condition.
Proved through real work, enclosed busbar anti-condensation device of the present utility model can in 24 hours tries bus
Dew-point temperature is tested in section from about+30 DEG C to be reduced to -40 DEG C (relative humidity is reduced to<1%).It is 2,3 small in input circulating dehumidification
Shi Hou, test section interior insulation can be brought up to more than 10000 megaohms from 0 megaohm.
Enclosed busbar anti-condensation device of the present utility model is connected by the head end and tail end respectively with three-phase enclosed busbar
Steam line and return-air duct, formd in the shell of three-phase enclosed busbar one circulation pressure-fired gas passage, energy
It is enough that dry pressure-fired gas is constantly passed through into enclosed busbar, so as to prevent in enclosed busbar due to high humidity and caused by
The situation that insulaion resistance is low, even condenses.
Further, enclosed busbar anti-condensation device of the present utility model is female in closing by setting the filtration system that dehumidifies
Humidity is larger in the shell of line, or compressor emergency shutdown maintenance after or first start before can be to being dehumidified in enclosed busbar
Work, so as to solve the condensation trouble of enclosed busbar.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements done etc., the utility model should be included in
Within the scope of protection.
Claims (5)
1. a kind of anti-condensation device of enclosed busbar, the enclosed busbar includes the three-phase bus be arrangeding in parallel, it is characterised in that
Device includes：Main equipment cabinet (11), the first steam line (13), the second steam line (14), return-air duct (12) and sampling pass
Sensor group；Main equipment cabinet (11) is connected to the first steam line (13), and the first steam line (13) is connected with enclosed busbar AC two
Logical, AC two-phases are connected by the second steam line (14) with B, and B phases pass through return-air duct (12) and main equipment cabinet (11) UNICOM；
There are air compressor (1), air accumulator (2), filter (3), adsorption machine (4) and programmable controller (9) in main equipment cabinet (11),
Wherein air compressor (1) is connected with air accumulator (2), and air accumulator (2) is connected with filter (3), and filter (3) is connected to absorption
Machine (4)；Sampling sensor is assembled in the enclosure of enclosed busbar.
2. device according to claim 1, it is characterised in that described sampling sensor group include pressure sensor (5),
Temperature sensor (6) and dew point transducer (7), are installed on enclosed busbar.
3. device according to claim 1, it is characterised in that one end of described the first steam line (13) and air mistake
The output end connection of drying system is filtered dry, enclosure of its other end respectively with the wherein two-phase bus in three-phase bus connects.
4. device according to claim 1, it is characterised in that described the second steam line (14) is by three-phase bus
The three-way pipe of enclosure connection.
5. device according to claim 1, it is characterised in that in one end and three-phase bus of described return-air duct (12)
Other phase bus enclosure connection, its other end connects with the input of air filtration drying system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720426727.5U CN206894122U (en) | 2017-04-21 | 2017-04-21 | A kind of anti-condensation device of enclosed busbar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720426727.5U CN206894122U (en) | 2017-04-21 | 2017-04-21 | A kind of anti-condensation device of enclosed busbar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206894122U true CN206894122U (en) | 2018-01-16 |
Family
ID=61324858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720426727.5U Expired - Fee Related CN206894122U (en) | 2017-04-21 | 2017-04-21 | A kind of anti-condensation device of enclosed busbar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206894122U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449767A (en) * | 2018-09-18 | 2019-03-08 | 国网浙江省电力有限公司紧水滩水力发电厂 | A kind of condensation-proof distribution box and its control method |
| CN113491930A (en) * | 2021-05-24 | 2021-10-12 | 保定宝汇通机电设备有限公司 | Anti-dewing device for enclosed bus |
-
2017
- 2017-04-21 CN CN201720426727.5U patent/CN206894122U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449767A (en) * | 2018-09-18 | 2019-03-08 | 国网浙江省电力有限公司紧水滩水力发电厂 | A kind of condensation-proof distribution box and its control method |
| CN109449767B (en) * | 2018-09-18 | 2020-08-18 | 国网浙江省电力有限公司紧水滩水力发电厂 | Anti-condensation distribution box and control method thereof |
| CN113491930A (en) * | 2021-05-24 | 2021-10-12 | 保定宝汇通机电设备有限公司 | Anti-dewing device for enclosed bus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180116 Termination date: 20210421 |