CN105909003B - The heat-preserving wall thickness method of adjustment of roof insulating for special (super) the high-tension transformer installation of extremely frigid zones - Google Patents
The heat-preserving wall thickness method of adjustment of roof insulating for special (super) the high-tension transformer installation of extremely frigid zones Download PDFInfo
- Publication number
- CN105909003B CN105909003B CN201610232716.3A CN201610232716A CN105909003B CN 105909003 B CN105909003 B CN 105909003B CN 201610232716 A CN201610232716 A CN 201610232716A CN 105909003 B CN105909003 B CN 105909003B
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- roof insulating
- canopy
- heat
- preserving wall
- heater
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000009434 installation Methods 0.000 title abstract description 14
- 230000017525 heat dissipation Effects 0.000 claims abstract description 33
- 238000010438 heat treatment Methods 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims description 16
- 238000009413 insulation Methods 0.000 claims description 13
- 238000004321 preservation Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
- E04H5/04—Transformer houses; Substations or switchgear houses
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H15/00—Tents or canopies, in general
- E04H15/02—Tents combined or specially associated with other devices
- E04H15/10—Heating, lighting or ventilating
- E04H15/12—Heating
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Building Environments (AREA)
Abstract
The present invention discloses a kind of heat-preserving wall thickness method of adjustment of roof insulating for special (super) the high-tension transformer installation of extremely frigid zones, it is related to extremely frigid zones power equipment mounting technique field, while for making roof insulating meet thermal requirements, reduce roof insulating builds cost.The heat-preserving wall thickness method of adjustment of the roof insulating for special (super) the high-tension transformer installation of extremely frigid zones includes: ground unit time heat dissipation capacity q in the canopy of the heating power P and roof insulating that obtain heaterd, to determine the canopy body unit time heat dissipation capacity q of roof insulatingt, and the thickness of heat-preserving wall is further determined according to the thermally conductive parameter of correlation of heat-preserving wall.It is used to determine the thickness of wall body of roof insulating when building the roof insulating of special (super) high-tension transformer of extremely frigid zones provided by the present invention for the heat-preserving wall thickness method of adjustment of the roof insulating of special (super) the high-tension transformer installation of extremely frigid zones.
Description
Technical field
The present invention relates to extremely frigid zones power equipment mounting technique fields, more particularly, to special (super) high pressure of extremely frigid zones
The heat-preserving wall thickness method of adjustment of the roof insulating of transformer.
Background technique
In recent years, as the aggravation of environmental pollution, haze weather occur more and more, seriously affected people's
Normal life.In order to prevent and treat haze, country proposes that transregional power transmission administers the plan of haze, and transregional power transmission is that one kind is sent at a distance
Electricity is needed using power delivery modes such as special (super) high pressures, this is that special (super) high pressure engineering has welcome huge development opportunity.
In China, the community energies such as Inner Mongolia Autonomous Region, Heilungkiang, Jilin, Xinjiang are relatively abundanter, regional energetically at these
Special (super) high-voltage fence construction is promoted, can be played an important role for transregional power transmission.And these areas are in severe cold areas, and
Spy (super) the high-tension transformer set-up time in special (super) high voltage substation process of construction is across entire winter；Therefore, special (super)
High voltage substation process of construction is in addition to needing to face original technical problem, it is necessary to when meeting winter construction, in high and cold low
Requirement of spy's (super) high-tension transformer in warm area for environment temperature.
Such as: in special (super) high-tension transformer installation process, insulating oil demand in special (super) high-tension transformer greatly,
Index request is high, and the hot-oil circulation temperature of insulating oil must reach 65 ± 5 DEG C, could normal mounting；But extremely frigid zones
Winter outdoor environment temperature is usually at -20 DEG C hereinafter, the winter outdoor environment temperature of extremely frigid zones in this way and above-mentioned insulating oil
The temperature difference of hot-oil circulation temperature has just reached 80 DEG C or more, so that the serious heat loss of insulating oil, to affect special (super)
The installation of high-tension transformer and the stabilization of follow-up operation.
In order to meet the installation and work requirements of special (super) high-tension transformer under psychro-environment, need for special (super) high voltage variable
Depressor sets up roof insulating, to guarantee that special (super) high-tension transformer can be installed and be worked under optimum conditions；However, existing one
A little national standards and company standard are installed only for electrical equipment, test has carried out corresponding regulation, and there is no about spy
The regulation of temperature requirements problem in (super) high-tension transformer installation process；Therefore, when building roof insulating, the structure of roof insulating
Parameter is difficult to determine, and there is a possibility that the heat-preserving wall thickness of roof insulating is too small, it is difficult to guarantee the temperature of shed of roof insulating；Or
Keep the heat-preserving wall thickness of roof insulating excessive, although meeting the thermal requirements of roof insulating in this way, results in the wave of material
Take, increase roof insulating builds cost.
Summary of the invention
The purpose of the present invention is to provide a kind of heat-preserving walls for special (super) the high-tension transformer roof insulating of extremely frigid zones
Thickness method of adjustment, while for making roof insulating meet thermal requirements, reduce roof insulating builds cost.
To achieve the goals above, the invention provides the following technical scheme:
Heat-preserving wall thickness method of adjustment of the one kind for the roof insulating of special (super) the high-tension transformer installation of extremely frigid zones, institute
It states roof insulating to include enclosure wall and be located at top on enclosure wall, the enclosure wall includes heat-preserving wall, and heating is equipped in the roof insulating
Device controls the heating power P of the heater, so that the roof insulating is heated to target temperature in the canopy of roof insulating by heater
Tn, and the temperature of shed of roof insulating is made to maintain target temperature in the canopy；The heat-preserving wall thickness method of adjustment includes:
Obtain ground unit time heat dissipation capacity q in the heating power P of heater and the canopy of roof insulatingd；According to heater
Ground unit time heat dissipation capacity q in the canopy of heating power P and roof insulatingdDetermine the canopy body unit time heat dissipation capacity q of roof insulatingp；Its
In, qp=P-qd；
Obtain surface area A in the canopy body of roof insulating1, target temperature T in canopynWith the canopy external environment temperature T of roof insulatingw, according to
The canopy body unit time heat dissipation capacity q of roof insulatingp, roof insulating canopy body in surface area A1, target temperature T in canopynWith the canopy of roof insulating
External environment temperature TwDetermine roof insulating target Coefficient K1, wherein
Obtain surface film thermal conductance a in the canopy body of roof insulatingn, roof insulating canopy external surface coefficient of heat transfer awAnd insulated wall
The thermal coefficient λ of material used in body determines the thickness δ of the heat-preserving wall, wherein
Preferably, ground unit time heat dissipation capacity q in the canopy of the roof insulatingdAcquisition methods include:
Obtain target temperature T in canopyn, roof insulating canopy external environment temperature Tw, roof insulating canopy in floor area A2And heat preservation
Ground Coefficient K in the canopy of canopy2, according to target temperature T in canopyn, roof insulating canopy external environment temperature Tw, floor area in canopy
A2With ground Coefficient K in canopy2Determine ground unit time heat dissipation capacity q in the canopy of the roof insulatingd, wherein qd=K2A2(Tn-
Tw)。
Preferably, the quantity k of the heat-preserving wall is at least two sides, and heat-preserving wall described in every face includes along the heat preservation
The i layer insulation portion of the short transverse setting of canopy；
The thickness δ of the heat-preserving wall includes the thickness δ of the insulation portion in heat-preserving wall described in every facei；
The thermal coefficient λ of material used in the heat-preserving wall includes the insulation portion in heat-preserving wall described in every face
The thermal coefficient λ of used materiali。
Preferably, when carrying out temperature control to roof insulating using three heaters, the position of three heaters and heating
Temperature meets following formula.
Wherein,
R1For the distance of reference position to primary heater；
R2For the distance of reference position to secondary heater；
R3For reference position to the distance of third heater；
T1For the heating temperature of primary heater；
T2For the heating temperature of secondary heater；
T3For the heating temperature of third heater.
Compared with prior art, provided by the present invention for the roof insulating temperature of special (super) the high-tension transformer installation of extremely frigid zones
Degree control method has the advantages that
Provided by the present invention for the heat-preserving wall thickness tune of the roof insulating of special (super) the high-tension transformer installation of extremely frigid zones
In adjusting method, the temperature of shed by acquisition in roof insulating maintains target temperature T in canopynWhen, the heating power P of heater and
Ground unit time heat dissipation capacity q in the canopy of roof insulatingd, to determine the canopy body unit time heat dissipation capacity q of roof insulatingp；And pass through acquisition
The canopy body unit time heat dissipation capacity q of roof insulatingp, roof insulating canopy body in surface area A1, target temperature T in canopynWith the canopy of roof insulating
External environment temperature TwDetermine roof insulating target Coefficient K1；Finally by acquisition roof insulating target Coefficient K1, roof insulating
Surface film thermal conductance a in canopy bodyn, roof insulating canopy external surface coefficient of heat transfer awIt is thermally conductive with material used in heat-preserving wall
Coefficient lambda really determines the thickness δ of heat-preserving wall；It thus can be according to the canopy body unit of the heating power of heater, roof insulating
Time heat dissipation capacity, roof insulating canopy in ground unit time heat dissipation capacity determine the heat-preserving wall thickness of roof insulating, avoid keeping the temperature
Wall leads to the waste of material because thickness is excessive, or causes the thermal insulation property of roof insulating to reduce because thickness is too small, so as to
While enough roof insulating being made to meet thermal requirements, reduce roof insulating builds cost.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the roof insulating structural schematic diagram in the embodiment of the present invention for special (super) high-tension transformer of extremely frigid zones；
Fig. 2 is the heat preservation of the roof insulating provided in an embodiment of the present invention for special (super) the high-tension transformer installation of extremely frigid zones
The overall flow figure of thickness of wall body method of adjustment；
Fig. 3 is that ground unit time heat dissipation capacity obtains flow chart in the canopy of roof insulating during the present invention is implemented；
Fig. 4 is the heat-insulating wall structure schematic diagram including three layers of insulation portion during the present invention is implemented；
Appended drawing reference:
1- heat-preserving wall, 11- insulation portion；
2- top, 3- heater；
4- spy's (super) high-tension transformer.
Specific embodiment
The guarantor for special (super) the high-tension transformer installation of extremely frigid zones that embodiment provides in order to further illustrate the present invention
The heat-preserving wall thickness method of adjustment of warm canopy, is described in detail with reference to the accompanying drawings of the specification.
Referring to Fig. 1, in embodiments of the present invention, roof insulating includes enclosure wall and is located at top 2 on enclosure wall, and enclosure wall includes
Heat-preserving wall 1, roof insulating is interior to be equipped with heater 3；By controlling the heating power P of heater 3, it can make heater 3 that will keep the temperature
Canopy is heated to target temperature T in the canopy of roof insulatingn, and the temperature of shed of roof insulating is made to maintain target temperature in the canopy.
Referring to Fig. 2, the roof insulating provided in an embodiment of the present invention for special (super) the high-tension transformer installation of extremely frigid zones
Heat-preserving wall thickness method of adjustment, comprising:
S100: ground unit time heat dissipation capacity q in the heating power P of heater 3 and the canopy of roof insulating is obtainedd；
S200: according to ground unit time heat dissipation capacity q in the canopy of the heating power P of heater 3 and roof insulatingdDetermine heat preservation
The canopy body unit time heat dissipation capacity q of canopyp, wherein qp=P-qd；
S300: surface area A in the canopy body of roof insulating is obtained1, target temperature T in canopynWith the canopy external environment temperature of roof insulating
Tw；
S400: according to the canopy body unit time heat dissipation capacity q of roof insulatingp, roof insulating canopy body in surface area A1, target in canopy
Temperature TnWith the canopy external environment temperature T of roof insulatingwDetermine roof insulating target Coefficient K1, wherein
S500: surface film thermal conductance a in the canopy body of roof insulating is obtainedn, roof insulating canopy external surface coefficient of heat transfer awAnd guarantor
The thermal coefficient λ of material used in warm wall 1 determines the thickness δ of heat-preserving wall 1, wherein
In practical operation, the heating power P of heater 3 can be preset, and according to the heating power P of heater 3,
Ground unit time heat dissipation capacity q in the canopy of roof insulatingdWith the canopy body unit time heat dissipation capacity q of roof insulatingpAnd 1 institute of heat-preserving wall
The associated heat transfer parameter of material selection, to determine the thickness δ of heat-preserving wall 1, finally according to the thickness of identified heat-preserving wall 1 come
Build roof insulating.
It is by above-mentioned actual mechanical process it is found that provided in this embodiment for special (super) the high-tension transformer peace of extremely frigid zones
The heat-preserving wall thickness method of adjustment of the roof insulating of dress, the temperature of shed by acquisition in roof insulating maintain target temperature in canopy
TnWhen, ground unit time heat dissipation capacity q in the heating power P of heater 3 and the canopy of roof insulatingd, to determine the canopy body list of roof insulating
Position time heat dissipation capacity qp；And the canopy body unit time heat dissipation capacity q by obtaining roof insulatingp, roof insulating canopy body in surface area A1、
Target temperature T in canopynWith the canopy external environment temperature T of roof insulatingwDetermine roof insulating target Coefficient K1；It is protected finally by obtaining
Warm canopy target Coefficient K1, roof insulating canopy body in surface film thermal conductance an, roof insulating canopy external surface coefficient of heat transfer awWith
The thermal coefficient λ of material used in heat-preserving wall 1 really determines the thickness δ of heat-preserving wall 1；In this manner it is possible to according to heating
The heating power of device 3, the canopy body unit time heat dissipation capacity of roof insulating, roof insulating canopy in ground unit time heat dissipation capacity determine
1 thickness of heat-preserving wall of roof insulating avoids heat-preserving wall 1 from leading to the waste of material because thickness is excessive, or due to thickness is too small
Leading to the thermal insulation property of roof insulating reduces, and while so as to make roof insulating meet thermal requirements, reduces building for roof insulating
Cost.
Referring to Fig. 3, and obtaining in above-described embodiment ground unit time heat dissipation capacity q in the canopy of roof insulatingdMethod it is more
Kind multiplicity, but generally should include:
S111: target temperature T in canopy is obtainedn, roof insulating canopy external environment temperature Tw, roof insulating canopy in floor area A2
With ground Coefficient K in the canopy of roof insulating2；
S112: according to target temperature T in canopyn, roof insulating canopy external environment temperature Tw, floor area A in canopy2With in canopy
Face Coefficient K2Determine ground unit time heat dissipation capacity q in the canopy of the roof insulatingd, wherein qd=K2A2(Tn-Tw)。
It is worth noting that, in the heat preservation provided by the above embodiment for special (super) the high-tension transformer installation of extremely frigid zones
In the heat-preserving wall thickness method of adjustment of canopy, the quantity k of heat-preserving wall 1 can be built according to actual needs, be with Fig. 1 and Fig. 4
Example, the roof insulating include enclosure wall and the top being located on enclosure wall 2, include at least two sides heat-preserving wall 1, and every face guarantor in enclosure wall
Warm wall 1 includes the i layer insulation portion 11 (i=3 in Fig. 4) being arranged along the short transverse of roof insulating；The roof insulating wall of this structure
Body 1 should meet following relationship:
Wherein, the thickness δ of heat-preserving wall 1 includes the thickness δ of insulation portion 11 in heat-preserving wall 1 described in every facei；Insulated wall
The thermal coefficient λ of material used in body 1 includes in every face heat-preserving wall 1, insulation portion 11 materials used thermal coefficient
λi.In this manner it is possible to carry out the adjustment of thickness to the heat-preserving wall 1 of multi-layer constructed structure.
And if the position of three heaters 3 and heating are warm when carrying out temperature control to roof insulating using three heaters 3
Degree meets following formula.
Wherein, R1For the distance of reference position to primary heater；R2For the distance of reference position to secondary heater；R3
For reference position to the distance of third heater；T1For the heating temperature of primary heater；T2For the heating temperature of secondary heater
Degree；T3For the heating temperature of third heater.In this way, required temperature when can be installed according to special (super) high-tension transformer 4
And special (super) high-tension transformer 4 determines the need of heater 3 heating temperature to be achieved to the distance between heater 3, thus
The heating power of heater 3 can be obtained；Moreover, can also lead to when heat-preserving wall 1 has certain distance apart from heater 3
Above-mentioned calculation is crossed to obtain the room temperature of heat-preserving wall position, in order to more accurately show that heat-preserving wall 1 is real
The thickness that border should reach.
In the description of above embodiment, particular features, structures, materials, or characteristics can be at any one or more
It can be combined in any suitable manner in a embodiment or example.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (2)
1. special for the heat-preserving wall thickness method of adjustment for the roof insulating that extremely frigid zones extra-high voltage or EHV transformer are installed
Sign is that the roof insulating includes enclosure wall and is located at top on enclosure wall, and the enclosure wall includes heat-preserving wall, in the roof insulating
Equipped with heater, the heating power P of the heater is controlled, so that the roof insulating is heated in the canopy of roof insulating by heater
Target temperature Tn, and the temperature of shed of roof insulating is made to maintain target temperature in the canopy；Heat-preserving wall thickness adjustment side
Method includes:
Obtain ground unit time heat dissipation capacity q in the heating power P of heater and the canopy of roof insulatingd；According to the heating function of heater
Ground unit time heat dissipation capacity q in the canopy of rate P and roof insulatingdDetermine the canopy body unit time heat dissipation capacity q of roof insulatingp, wherein qp
=P-qd；
Obtain surface area A in the canopy body of roof insulating1, target temperature T in canopynWith the canopy external environment temperature T of roof insulatingw, according to heat preservation
The canopy body unit time heat dissipation capacity q of canopyp, roof insulating canopy body in surface area A1, target temperature T in canopynWith the canopy outer ring of roof insulating
Border temperature TwDetermine roof insulating target Coefficient K1, wherein
Obtain surface film thermal conductance a in the canopy body of roof insulatingn, roof insulating canopy external surface coefficient of heat transfer awWith heat-preserving wall institute
The thermal coefficient λ of the material used determines the thickness δ of the heat-preserving wall, wherein
The heat-preserving wall thickness method of adjustment further include:
When carrying out temperature control to roof insulating using three heaters, the position of three heaters and heating temperature meet following public
Formula:
Wherein,
R1For the distance of reference position to primary heater；
R2For the distance of reference position to secondary heater；
R3For reference position to the distance of third heater；
T1For the heating temperature of primary heater；
T2For the heating temperature of secondary heater；
T3For the heating temperature of third heater；
Ground unit time heat dissipation capacity q in the canopy of the roof insulatingdAcquisition methods include:
Obtain target temperature T in canopyn, roof insulating canopy external environment temperature Tw, roof insulating canopy in floor area A2With roof insulating
Ground Coefficient K in canopy2, according to target temperature T in canopyn, roof insulating canopy external environment temperature Tw, floor area A in canopy2With
Ground Coefficient K in canopy2Determine ground unit time heat dissipation capacity q in the canopy of the roof insulatingd, wherein qd=K2A2(Tn-Tw)。
2. the insulated wall of the roof insulating according to claim 1 installed for extremely frigid zones extra-high voltage or EHV transformer
Body thickness method of adjustment, which is characterized in that the quantity k of the heat-preserving wall is at least two sides, and heat-preserving wall packet described in every face
Include the i layer insulation portion of the short transverse setting along the roof insulating；
The thickness δ of the heat-preserving wall includes the thickness δ of the insulation portion in heat-preserving wall described in every facei；
The thermal coefficient λ of material used in the heat-preserving wall includes in heat-preserving wall described in every face, and the insulation portion is made
The thermal coefficient λ of materiali。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610232716.3A CN105909003B (en) | 2016-04-14 | 2016-04-14 | The heat-preserving wall thickness method of adjustment of roof insulating for special (super) the high-tension transformer installation of extremely frigid zones |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610232716.3A CN105909003B (en) | 2016-04-14 | 2016-04-14 | The heat-preserving wall thickness method of adjustment of roof insulating for special (super) the high-tension transformer installation of extremely frigid zones |
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| Publication Number | Publication Date |
|---|---|
| CN105909003A CN105909003A (en) | 2016-08-31 |
| CN105909003B true CN105909003B (en) | 2019-01-18 |
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ID=56746212
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2568771Y (en) * | 2002-02-06 | 2003-08-27 | 曲静 | Hanging far red infrared electrothermal tent |
| CN202530828U (en) * | 2012-03-16 | 2012-11-14 | 郭伟 | Electric heating traveling tent |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8997767B2 (en) * | 2011-10-28 | 2015-04-07 | Richard W. Hotes | Multi-layer shelter insulation system |
-
2016
- 2016-04-14 CN CN201610232716.3A patent/CN105909003B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2568771Y (en) * | 2002-02-06 | 2003-08-27 | 曲静 | Hanging far red infrared electrothermal tent |
| CN202530828U (en) * | 2012-03-16 | 2012-11-14 | 郭伟 | Electric heating traveling tent |
Non-Patent Citations (1)
| Title |
|---|
| 高寒地区1000kV特高压电气主设备安装过程保温棚的传热学模型及计算应用;侯纪勇等;《中国电机工程学会2015年年会论文集》;20151231;第1-6页 |
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| CN105909003A (en) | 2016-08-31 |
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