CN109378745A - A kind of the environment automatic regulating system and adjusting method of substation control buildings - Google Patents
A kind of the environment automatic regulating system and adjusting method of substation control buildings Download PDFInfo
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- CN109378745A CN109378745A CN201811338173.9A CN201811338173A CN109378745A CN 109378745 A CN109378745 A CN 109378745A CN 201811338173 A CN201811338173 A CN 201811338173A CN 109378745 A CN109378745 A CN 109378745A
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 12
- 238000012544 monitoring process Methods 0.000 claims abstract description 50
- 239000000779 smoke Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 229920006395 saturated elastomer Polymers 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 3
- 231100000331 toxic Toxicity 0.000 claims description 3
- 230000002588 toxic effect Effects 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 abstract description 8
- 230000007812 deficiency Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 description 13
- 238000005259 measurement Methods 0.000 description 11
- 235000019504 cigarettes Nutrition 0.000 description 5
- 238000011217 control strategy Methods 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 230000001235 sensitizing effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
Abstract
The invention discloses the environment automatic regulating systems and adjusting method of a kind of substation control buildings, it includes: indoor and outdoor temperature-humidity monitoring element and smoke monitoring element, indoor and outdoor temperature-humidity monitoring element and smoke monitoring element and substation control buildings temperature and humidity automatic control system, substation control buildings temperature and humidity automatic control system are separately connected with dehumidifier and air exhauster；Indoor temperature and humidity monitoring element is arranged in the top center position of the both ends switchgear of every row switch cabinet and the position of the middle part apart from 10-20 centimetres high of floor at every row switch cabinet back side；Indoor smog monitoring element is located at the middle position of indoor ceiling；About 3-10 centimetres of the top that outdoor temperature humidity monitoring element is distributed in two sides air inlet is fixed by wall；The accuracy controlling to spaces most in switchgear house may be implemented；Solve the deficiencies in the prior art.
Description
Technical field
The invention belongs to automation field more particularly to the environment automatic regulating systems and tune of a kind of substation control buildings
Section method.
Background technique
There are many important power equipment and its systems for assembly in high-tension distribution chamber of converting room, there is harsh requirement for environment.
Temperature is excessively high to may cause that equipment heating amount is excessive can not but to radiate, and in turn results in damage, system may also can go out because of high temperature
The case where existing fluctuation of service.Phenomena such as moisture condensation, corrosion, can occur for excessively high humidity and a large amount of dust in air, lead to equipment
The accidents such as aging, failure occur.For the aerial temperature and humidity for reducing switchgear house power equipment running environment, meet high-tension apparatus safety
The ambient temperature and humidity index of operation, prevent dust accumulation, dew condensation phenomenon, solve high-tension distribution chamber of converting indoor equipment get rusty, problem of aging, prolong
Long life period of equipment guarantees production safety, while reducing energy consumption, accomplishes energy-saving and emission-reduction, so needing to design reasonable environment
Control system；Room temperature and humidity are monitored when implementing in the indoor Environment Controlling Strategy of switchgear house at present,
It when temperature and humidity is undesirable, opens whole equipment (dehumidifier or blower) and is controlled, adjust indoor temperature and humidity,
So that temperature and humidity drops in required range；Environment Controlling Strategy and method are primarily present following defect at present:
1. the monitoring point distribution of pair indoor temperature and humidity is less and unreasonable, it is although being received to the environment near monitoring point
The control of system, it can be difficult to whether the temperature and humidity of complementary space also reaches requirement when guaranteeing that the monitoring point reaches requirement.?
The place that does not monitor leads to the generation of accident it is possible to there is environment situation not up to standard；
2. on control strategy, exists once environmental monitoring goes out not up to desired place, just will start all devices, it is right together
Entire environment is adjusted.One is inaccurate, makes the environment temperature in low temperature to make some part reach standard
Become lower, can not achieve and specific aim control is carried out to the indoor space of distribution；Two start unnecessary equipment, increase
The working time of equipment, energy consumption increase, and can not achieve the purpose of energy-saving and emission-reduction.
Summary of the invention
The technical problem to be solved by the present invention is providing the environment automatic regulating system and adjusting of a kind of substation control buildings
Method, to solve above-mentioned the deficiencies in the prior art.
The technical scheme is that
A kind of environment automatic regulating system of substation control buildings, it includes: indoor and outdoor temperature-humidity monitoring element and smog
Monitoring element, indoor and outdoor temperature-humidity monitoring element and smoke monitoring element and substation control buildings temperature and humidity, which automatically control, is
System, substation control buildings temperature and humidity automatic control system are separately connected with dehumidifier and air exhauster；Indoor temperature and humidity prison
Survey element is with being arranged in the top center position of the both ends switchgear of every row switch cabinet and the middle part distance at every row switch cabinet back side
10-20 centimetres of plate high position；Indoor smog monitoring element is located at the middle position of indoor ceiling；Outdoor temperature humidity monitoring member
About 3-10 centimetres of the top that part is distributed in two sides air inlet is fixed by wall.
The dehumidifier is mounted on every row switch cabinet both ends；Air exhauster is mounted on power distribution network left and right sides exterior wall；Every side
Exterior wall is equipped with two air exhausters；Every air exhauster side is provided with corresponding air inlet.
A kind of adjusting method of the environment automatic regulating system of substation control buildings, it includes:
Step 1, when smoke monitoring element monitoring have dense smoke when, substation control buildings temperature and humidity automatic control system hair
Alarm signal out, while toxic and harmful gas in switch gear room is discharged with maximum wind velocity operation for automatic starting exhaust blower；Work as smog
Monitoring element do not monitor to stop air draft when dense smoke, is transferred to normal temperature and humidity detection；
Step 2 works as TIt is indoor>=40 DEG C,TIt is outdoorAt >=40 DEG C, it is failure to actuate；Work as TIt is indoor>=40 DEG C,
TIt is outdoor≤TIt is indoorWhen, and after holding 3-5 minutes, it opens high-tension distribution chamber of converting air exhauster and carries out room temperature lowering processing；
Step 3 works as TIt is indoor≥40℃、AndTIt is outdoor≤TIt is indoorWhen, open exhaust blower；Work as TIt is indoor≥
40℃、When, andTIt is outdoor≤TIt is indoor, then exhaust blower and dehumidifier are opened；Work as TIt is indoor≥40℃、When, andTIt is outdoor≥TIt is indoor, then open dehumidifier and dehumidify；
Step 4 works as TIt is indoor40 DEG C of <,When, andThen open exhaust blower；Work as TIt is indoor40 DEG C of <,AndIt is then not turned on exhaust blower, starting dehumidifier dehumidifies；
Step 5 works as TIt is indoorAt 40 DEG C of <, such as outdoor water capacity is less than indoor water capacity, i.e. dOutdoor water capacity< dIndoor water capacity, then open
Dynamic exhaust blower closes exhaust blower until indoor and outdoor water capacity is equal；
Step 6 works as TBuilding enclosure surface temperature> TDew-point temperature, then exhaust blower start-stop is not intervened, if TBuilding enclosure surface temperature< TDew-point temperature
And exhaust blower is then forcibly closed after continuing 3-5 minutes.
The calculation method of outdoor water capacity and indoor water capacity are as follows:
Step A, with switchgear house room temperature TIt is indoor≤ A and indoor relative humidityTo control target, A is temperature valve
Value, B are humidity threshold values；Real-time monitoring room air dry-bulb temperature TIndoor dry bulb, indoor air relative humidityOutdoor air
Dry-bulb temperature TOutdoor dry bulbWith outdoor air relative humidity
Step B, the humid air calculated under corresponding dry-bulb temperature is saturated partial pressure,
PIt is saturated partial pressure=(5.96485+0.43432TDry-bulb temperature+0.01804TDry-bulb temperature 2+5.41671×10-5TDry-bulb temperature 3+6.9644
×10-6TDry-bulb temperature 4)×102；
Step C, according to air humidity content formulaIn real-time measurement air
Under the conditions of dry-bulb temperature and wet-bulb temperature, available indoor and outdoor water capacity；
Step D, simultaneously according to water capacity dWater capacityExtrapolate corresponding dew-point temperature, i.e. TBuilding enclosure surface temperature> TDew-point temperature。
The invention has the advantages that:
The present invention configures more Fans and dehumidifier in switchgear house, obtains sensitive measurement point according to CFD simulation result,
Temperature and Humidity point, cigarette sense monitoring point is arranged in sensitive measurement point, forms environmental control system；Effectively ambient temperature and humidity is carried out
Control, the decision logic of proposition are very easy to accomplish in terms of control.By the subitem control to multiple devices, according to temperature and humidity
High monitoring point starts nearest equipment, and independence, the combination control mode of equipment may be implemented, improve the standard of environmental Kuznets Curves
True property, reduces the working time of unnecessary equipment, realizes energy-saving and emission-reduction；
The present invention is configured with more set blowers and dehumidifier in switchgear house, according to the data of monitoring point, judges in conjunction with movement
Logic can carry out subitem control to more Fans, dehumidifier, the exceeded environmental parameter provided according to monitoring point, and starting is nearest
Blower or dehumidifier the different control modes such as be adjusted, thus have and be activated individually, start more Fans and dehumidifier,
The accuracy controlling to spaces most in switchgear house may be implemented in this way；Solve the deficiencies in the prior art.
Detailed description of the invention
Fig. 1 is switchgear house control device arrangement schematic diagram.
Specific embodiment
The purpose of the present invention is designing reasonable environmental control system, temperature, the relative humidity of indoor environment are controlled, is prolonged
Long life period of equipment.Environmental control system switchgear house arrangement schematic diagram, as shown in Figure 1.It emulates to obtain distribution by CFD
The temperature and relative humidity distribution situation of room, determine sensitive measurement point.On the basis of this, environmental control system to room temperature,
Outdoor temperature, indoor cigarette sense, indoor humidity, outside humidity measure, and by appropriate control strategy, judge dehumidifier, row
The state that switchgear house environmental parameter reaches setting is adjusted whether blower acts.Wind turbine and dehumidifier carry out subitem control,
According to the high monitoring point of temperature and humidity, start nearest blower, dehumidifier is adjusted.
When fire acousto-optic alarm monitoring has dense smoke situation, system issues alarm signal at once, while automatic starting exhaust blower is with most
Big wind speed operation, toxic and harmful gas in switch gear room is discharged before the deadline.When fire acousto-optic alarm is restored normally, then to stop
Only air draft is transferred to the normal temperature and humidity detection of switch gear room.
Real-time monitoring indoor and outdoor temperature and humidity
Space is determined on the basis of numerical simulation calculated result according to the sensitive measurement point that Numerical Simulation Results determine
The relationship of each state point temperature and relative humidity and sensitive measurement point, is obtained: T using temperature and relative humidity correction valueRoom temperature=
TSensitive measuring point+ΔTAmendment,Correction value size is determined according to temperature point and humidity measuring point.With high pressure
Switchgear house room temperature TIt is indoor≤ A and indoor relative humidityTo control target, real-time monitoring room air dry bulb temperature
Spend TIndoor dry bulb, indoor air relative humidityOutdoor air dry-bulb temperature TOutdoor dry bulb, outdoor air relative humidity
And calculate the humid air saturation partial pressure under corresponding dry-bulb temperature, i.e. P in real time by control systemIt is saturated partial pressure=(5.96485+
0.43432TDry-bulb temperature+0.01804TDry-bulb temperature 2+5.41671×10-5TDry-bulb temperature 3+6.9644×10-6TDry-bulb temperature 4)×102, according to air
Water capacity:Under the conditions of real-time measurement air dry-bulb temperature and wet-bulb temperature,
Indoor and outdoor water capacity can be obtained indirectly.Meanwhile according to water capacity dWater capacityCorresponding dew-point temperature T can be extrapolatedDew point,
Indoor building enclosure surface temperature is asked necessarily to be greater than dew-point temperature, i.e. TBuilding enclosure surface temperature> TDew-point temperature, so just can ensure that wall surface not
Generate condensed water.
Control strategy
1) general requirement of high-tension distribution chamber of converting environmental Kuznets Curves: room temperature and wet is realized by rationally controlling ventiduct roadbed
Degree control, it is ensured that high-tension distribution chamber of converting workspace temperature T and relative humidity RH are no more than the threshold value A of setting, B, while requiring high pressure
Switchgear house air humidity content is less than outdoor air water capacity, i.e. dIt is indoor≤dIt is outdoor, in order to avoid power control cabinet wall surface condensation, need to detect
Power control cabinet sensitizing range temperature, while guaranteeing that wall surface temperature is higher than wall surface air dew point temperature, i.e. TWall surface≥TAir dew point temperature.With A=40
DEG C B=85% is setting value explanation.
It 2) is that cannot achieve room air dehumidification process if only by high voltage power distribution indoor and outdoor replacement aeration.Consider
The wet heating processes such as indoor machine cabinet radiates and the factors such as exterior wall heat transfer, and room temperature air condition change procedure is usually,
That is indoor air relative humidity is usually lower than outside relative humidity, but indoor and outdoor water capacity is divulged information after a period of time
Inevitable equal after ventilation, in the case that heat dissipation capacity is little indoors, indoor and outdoor relative humidity also tends to be equal.In consideration of it,
Under normal circumstances, there is no condensed waters on high-tension distribution chamber of converting interior building enclosure surface.Consider that day and night temperature is big, ventilation situation
Under, outdoor temp humid air is possible to generate condensed water, it is therefore desirable in real-time monitoring room when contacting indoor low temperature wall surface
Outer temperature and humidity and indoor enclosed structure wall surface temperature, the conjunction of room temperature and humidity is realized by tapping mode ventilation time
Reason control.Table 1 is that the movement of normal control judges information summary sheet, according to this table, starts nearest air draft when that should act
Machine and dehumidifier are acted.
The movement of 1 normal control of table judges information summary sheet
3) work as TIt is indoor>=40 DEG C,TIt is outdoorAt >=40 DEG C, it is failure to actuate；Work as TIt is indoor>=40 DEG C,TIt is outdoor
≤TIt is indoorWhen, to avoid blower frequent movement, it is desirable that the condition is used as control condition after continuing 3-5 minutes, opens at this time high
Switchgear house exhaust blower is pressed to carry out room temperature lowering processing.It can be required according to field control, rationally design the temperature for closing exhaust blower
Control threshold, such as control threshold when 35 DEG C of room temperature or equal indoor and outdoor temperature can be set, while comparing room
Inside and outside relative humidity, if relative humidity is higher than 85%, stops divulging information during aeration-cooling, if indoor relatively wet
Degree continues to 85% or more, then needs to open auxiliary dehumidifier and dehumidify.
If 4) TIt is indoor40 DEG C of <,When, andExhaust blower can then be opened；If TIt is indoor< 40
℃、AndIt is then not turned on exhaust blower, needs to intervene auxiliary dehumidifier at this time and dehumidifies.
If 5) TIt is indoor≥40℃、When, andTIt is outdoor≤TIt is indoor, then exhaust blower can be opened；Such as
Fruit TIt is indoor≥40℃、When, andTIt is outdoor≤TIt is indoor, then exhaust blower and dehumidifier can be opened；If
TIt is indoor≥40℃、When, andTIt is outdoor≥TIt is indoor, then can open dehumidifier and dehumidify.
6) work as TIt is indoorAt 40 DEG C of <, such as outdoor water capacity is less than indoor water capacity, i.e. dOutdoor water capacity< dIndoor water capacity, then start row
Blower closes exhaust blower when indoor and outdoor water capacity is equal.To avoid blower frequent movement, then the condition continues 3~5 points
Clock.
7) the enclosed structure surface temperature for monitoring sensitive spot, if TBuilding enclosure surface temperature> TDew-point temperature, then do not intervene exhaust blower and open
Stop acting, if TBuilding enclosure surface temperature< TDew-point temperature, then need to forcibly close exhaust blower, while considering that intervention auxiliary dehumidifier is removed
It is wet.To avoid blower frequent movement, then the condition continues 3~5 minutes.
Implementation process
High-tension distribution chamber of converting Environment Controlling Strategy of the invention the following steps are included:
1) according to the distribution situation in high-tension distribution chamber of converting temperature field and relative humidity field, determine that measurement point is arranged in every row switch
The top center position of the both ends switchgear of cabinet.
2) middle part of the indoor humidity monitoring site in every row switch cabinet back side, the position apart from 10-20 centimetres high of floor.
3) indoor cigarette sense monitoring site is in the geometry middle position of indoor ceiling.
4) outdoor temperature-humidity monitoring point, distribution are located at about 3-10 centimetres of the top of two sides air inlet, fix by wall.
5) temperature-humidity sensor real-time monitoring indoor and outdoor temperature and humidity is utilized, and is transmitted to this automatic regulating system.
6) Threshold of Temperature And Humidity being arranged according to system, through the automatic logic judgment of system, take corresponding control exhaust blower with
The start and stop measure of dehumidifier guarantees that the indoor temperature and humidity of switchgear house is in suitable state.
Advantages of the present invention:
Real-time monitoring indoor and outdoor temperature and humidity
The premise that environmental Kuznets Curves are realized is that accurate and necessary monitoring is carried out to environmental parameter.Pass through high voltage power distribution room temperature
The simulation result of field and relative humidity field, determines sensitive measurement point.And temperature, humidity, cigarette sense test point are set in measurement point, it is real
When monitoring indoor and outdoor temperature and humidity and cigarette sense, the foundation acted to environmental control system offer.
Reasonable effective control logic
Monitoring according to sensitive measurement point to indoor and outdoor temperature and humidity, takes corresponding control mode to control in switchgear house
Temperature and humidity reach target value.Control strategy, as movement decision logic, provides different controls according to the different situations of temperature and humidity
Mode processed is adjusted environment whether controlling the movement of blower, dehumidifier.
The subitem control of blower, dehumidifier
More set blowers and dehumidifier are configured in switchgear house, it, can be in conjunction with movement decision logic according to the data of monitoring point
Subitem control is carried out to more Fans, dehumidifier, the exceeded environmental parameter provided according to monitoring point starts nearest blower or removes
Wet machine such as is adjusted, thus has and be activated individually, starts more Fans and dehumidifier at the different control modes, in this way can be real
Now to the accuracy controlling in spaces most in switchgear house.
Claims (4)
1. a kind of environment automatic regulating system of substation control buildings, it includes: indoor and outdoor temperature-humidity monitoring element and smog prison
It surveys element, indoor and outdoor temperature-humidity monitoring element and smoke monitoring element and substation control buildings temperature and humidity automatically controls and is
System, substation control buildings temperature and humidity automatic control system are separately connected with dehumidifier and air exhauster；It is characterized by: room
Interior temperature-humidity monitoring element is arranged in the top center position and every row switch cabinet back side of the both ends switchgear of every row switch cabinet
Position of the middle part apart from 10-20 centimetres high of floor；Indoor smog monitoring element is located at the middle position of indoor ceiling；Outdoor temp
About 3-10 centimetres of the top that humidity detection element is distributed in two sides air inlet is fixed by wall.
2. a kind of environment automatic regulating system of substation control buildings according to claim 1, it is characterised in that: described to remove
Wet machine is mounted on every row switch cabinet both ends；Air exhauster is mounted on power distribution network left and right sides exterior wall；Every side exterior wall is equipped with two
Air exhauster；Every air exhauster side is provided with corresponding air inlet.
3. a kind of adjusting method of the environment automatic regulating system of substation control buildings as described in claim 1, it includes:
Step 1, when smoke monitoring element monitoring have dense smoke when, substation control buildings temperature and humidity automatic control system issue accuse
Alert signal, while toxic and harmful gas in switch gear room is discharged with maximum wind velocity operation for automatic starting exhaust blower；Work as smoke monitoring
Element do not monitor to stop air draft when dense smoke, is transferred to normal temperature and humidity detection；
Step 2 works as TIt is indoor>=40 DEG C,TIt is outdoorAt >=40 DEG C, it is failure to actuate；Work as TIt is indoor>=40 DEG C,TIt is outdoor
≤TIt is indoorWhen, and after holding 3-5 minutes, it opens high-tension distribution chamber of converting air exhauster and carries out room temperature lowering processing；
Step 3 works as TIt is indoor≥40℃、AndTIt is outdoor≤TIt is indoorWhen, open exhaust blower；Work as TIt is indoor≥40
℃、When, andTIt is outdoor≤TIt is indoor, then exhaust blower and dehumidifier are opened；Work as TIt is indoor≥40℃、When, andTIt is outdoor≥TIt is indoor, then open dehumidifier and dehumidify；
Step 4 works as TIt is indoor40 DEG C of <,When, andThen open exhaust blower；Work as TIt is indoor40 DEG C of <,AndIt is then not turned on exhaust blower, starting dehumidifier dehumidifies；
Step 5 works as TIt is indoorAt 40 DEG C of <, such as outdoor water capacity is less than indoor water capacity, i.e. dOutdoor water capacity< dIndoor water capacity, then start row
Blower, until until indoor and outdoor water capacity it is equal, close exhaust blower；
Step 6 works as TBuilding enclosure surface temperature> TDew-point temperature, then exhaust blower start-stop is not intervened, if TBuilding enclosure surface temperature< TDew-point temperatureAnd it holds
Exhaust blower is then forcibly closed after 3-5 minutes continuous.
4. a kind of environment automatic regulating system of substation control buildings according to claim 3
Adjusting method, it is characterised in that: the calculation method of outdoor water capacity and indoor water capacity are as follows:
Step A, with switchgear house room temperature TIt is indoor≤ A and indoor relative humidityTo control target, A is threshold temperature, B
For humidity threshold values；Real-time monitoring room air dry-bulb temperature TIndoor dry bulb, indoor air relative humidityOutdoor air dry bulb
Temperature TOutdoor dry bulbWith outdoor air relative humidity
Step B, the humid air calculated under corresponding dry-bulb temperature is saturated partial pressure, PIt is saturated partial pressure=(5.96485+0.43432TDry-bulb temperature+
0.01804TDry-bulb temperature 2+5.41671×10-5TDry-bulb temperature 3+6.9644×10-6TDry-bulb temperature 4)×102；
Step C, according to air humidity content formulaIt is surveyed in real time
Under the conditions of measuring air dry-bulb temperature and wet-bulb temperature, available indoor and outdoor water capacity；
Step D, simultaneously according to water capacity dWater capacityCorresponding dew-point temperature is extrapolated, i.e.,
TBuilding enclosure surface temperature> TDew-point temperature。
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| CN112231812A (en) * | 2020-10-15 | 2021-01-15 | 乌江渡发电厂 | Intelligent ventilation control method and system for underground powerhouse of hydropower station |
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| CN108388297A (en) * | 2018-05-29 | 2018-08-10 | 贵州电网有限责任公司 | Substation control buildings environmental control system and method based on LoRa technologies |
| CN108681357A (en) * | 2018-05-29 | 2018-10-19 | 贵州电网有限责任公司 | A kind of temperature and humidity controlsystem and control method of substation control buildings |
| CN209544952U (en) * | 2018-11-14 | 2019-10-25 | 贵州电网有限责任公司 | A kind of environment automatic regulating system of substation control buildings |
Cited By (2)
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| CN112231812A (en) * | 2020-10-15 | 2021-01-15 | 乌江渡发电厂 | Intelligent ventilation control method and system for underground powerhouse of hydropower station |
| CN112231812B (en) * | 2020-10-15 | 2022-12-09 | 乌江渡发电厂 | Intelligent ventilation control method and system for underground powerhouse of hydropower station |
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