CN103683050B - Sound-insulation cooling device for indoor transformer/electric reactor - Google Patents
Sound-insulation cooling device for indoor transformer/electric reactor Download PDFInfo
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Abstract
The invention discloses a sound-insulation cooling device for an indoor transformer/electric reactor and belongs to the field of power transformation and power distribution. According to the sound-insulation cooling device for the indoor transformer/electric reactor, a rectangular frame-shaped shell is arranged on a wall of a transformer/electric reactor room, a gas-gas heat exchanger is arranged in the rectangular frame-shaped shell, and the gas-gas heat exchanger is composed of heat pipe beams which are provided with cooling fins; the indoor side of the rectangular frame-shaped shell and the outdoor side of the rectangular frame-shaped shell are respectively provided with a circulating ventilation heat exchanging channel, when indoor high-temperature gas and outdoor low-temperature gas flow through the corresponding channels respectively at the same time, the heat pipe beam type heat exchanger transmits the heat of the indoor high-temperature gas to the outdoor low-temperature gas, and then sound-insulation cooling of the transformer/electric reactor is achieved in the sound insulation/dust insulation mode. According to the sound-insulation cooling device for the indoor transformer/electric reactor, the inner circulating type heat absorption technology is adopted, heat in the transformer/electric reactor room is transmitted to the outdoor environment under the condition that inside-and-outside heat exchanging is not conducted, the cleanness/sound insulation of the room is kept, and the problems that when an ordinary power distribution station transformer/electric reactor/capacitor operates in the room, the temperature is too high, generated noise can disturb people, and dust can be generated can be solved.
Description
Technical field
The invention belongs to become, field of power distribution, more particularly to a kind of distribution board for supply and distribution, transformer station or switch
The cooling device of device.
Background technology
With developing rapidly for urban construction, urban power consumption is presented quick increased situation, down town power load
Density increases, and the transformer station building in urban district or in residential area is more and more, and transformer or reactor are used as in transformer station
Visual plant, is also mounted more and more, is arranged in urban district or in residential area.
The caloric value of transformer or reactor, the oil cooling system for mainly being carried by which in existing transformer station's building
Reach outdoor environment to be cooled down；Meanwhile, the heat that these equipment surfaces send is distributed to the switchgear house or transformation of transformer station
In the indoor environment of device.
In the conventional design of existing transformer station, typically by the mode of installation exhaust blower and air feed shutter window to power transformation
The indoor environment of building of standing is aerated, radiates, and still has very big noise to spread out of open air in day-to-day operation, and Jing often causes
The complaint of surrounding resident.
And, exhaust blower operationally can suck the supplementary air containing dust in a large number from surrounding enviroment（It is referred to as in the industry " mending
Wind "）, cause transformer, many dust be enriched in reactor room, after dust is enriched with to a certain extent, can cause powered fortune
" the safe insulation distance " of row equipment is reduced, in physical device running, Jing often thus cause equipment local " climbing electricity ",
The generation of electric discharge/breakdown faults such as " altering arc ".
Disturb residents to reduce noise, many transformers and reactor room are forced to design using enclosed construction at present, cancel
Air feed shutter window or exhaust blower；In high temperature and high load capacity season, transformer and reactor indoor temperature up to more than 60 DEG C, to the greatest extent
The present distribution equipment of pipe can more than 80 DEG C at a temperature of operation, but the servicing unit in transformer/reactor room
With measurement apparatus due to running at high temperature for a long time, cause job insecurity, by mistake alarm failure take place frequently, the contracting of equipment service life
The phenomenon that short, ageing equipment degree is accelerated.
Authorized announcement date is August in 2013 14, Chinese utility model patent of the Authorization Notice No. for CN203129708U,
Disclose " a kind of sound barrier for outdoor substation ", the sound barrier described in which is by the shaped steel column of many H types and positioned at each
The sound absorption and insulation screen body of the tabular between shaped steel column, constitutes the sound absorption and insulation barrier of lightweight steel construction；The shaped steel column of the H types
It is fixed in ground base；Described sound absorption and insulation screen body is vertically inserted in the groove of H type shaped steel columns both sides；Jing securing members with
H type shaped steel columns fix as one；The lightweight steel construction sound absorption and insulation screen constituted by the H types shaped steel column and sound absorption and insulation screen body
Barrier, is arranged on around outdoor substation or outdoor substation main transformer, or, it is arranged on outdoor substation and residential building
Between.Which intercepts substation operation noise by way of arranging sound absorption and insulation screen body between transformer station and residential building
Straightline propagation, is only applicable to the noise elimination noise reduction to transformer station's surrounding environment, it is impossible to solve the problems, such as the cooling in transformer station's building,
The generation of the problem that cannot also avoid " benefit wind " dust-laden and the failure such as equipment local " climbing electricity " for thus causing, " altering arc ".
The content of the invention
The technical problem to be solved is to provide a kind of indoor transformer/reactor sound insulation heat sink, and which is adopted
With interior circulation heat absorption technology, in the case where the situation that indoor and outdoor are directly taken a breath is not carried out, the heat in transformer/reactor room is passed
Outdoor environment is handed to, makes indoor temperature tend to outdoor ambient temperature；Can make equipment cooling, but can keep indoor cleaning and every
Sound；Also will thoroughly solve in general transformer and distribution power station transformer/reactor/capacitor chamber that temperature is too high in operation, noise disturb residents and
Dust is enriched with problem and the various equipment faults for thus causing.
The technical scheme is that：A kind of indoor transformer/reactor sound insulation heat sink is provided, be it is characterized in that：
On the wall of the transformer/reactor room, at least one rectangular box-like housing is set；In rectangular box-like housing, arrange
Gas gas-heat exchanger, for absorbing the air heat source in transformer/reactor room；Described gas gas-heat exchanger be with
The heat exchanger that the heat pipe bundle of radiating fin is constituted；Heat transfer modes of the described heat exchanger using sound insulation/dust-separation, by interior
Air heat source conduction is emitted into outdoor；Wherein, described rectangular box-like housing is through the transformer/reactor room and outdoor phase
Adjacent wall is arranged；In described rectangular box-like housing arrange a thermal baffle, for indoor and outdoor environment is carried out every
From the sound insulation/dust-separation played between the space of indoor and outdoor is acted on, and described heat pipe bundle is supported/is fixed；Described
On thermal baffle, the heat pipe bundle being made up of multiple heat pipes is provided through, as heat-conduction component；In the rectangular box-like housing
Indoor and outside, be respectively provided with circulating ventilation heat exchanger channels, form indoor high-temperature gas circulation canal and outdoor low temperature
Gas circulation channel；When described indoor high-temperature gas and outdoor cryogenic gas are flow through in respective passage respectively simultaneously,
Described heat pipe bundle heat exchanger is passed to the cryogenic gas of outdoor by the heat of indoor high-temperature gas, so as to realize two kinds of gases
Heat exchange, thereby realizes the sound insulation cooling of the transformer/reactor room under sound insulation/dust-separation pattern.
Specifically, the thermal baffle described in which is set with the transformer/reactor room with outdoor adjacent wall coaxial line
Put.
At the heat pipe two ends positioned at the thermal baffle both sides, multigroup radiating fin is provided with, heat pipe bundle is respectively constituted and is changed
The hot junction of thermal and cold end, the hot junction of its heat pipe bundle heat-exchanger rig, positioned at the indoor of rectangular box-like housing, the heat
The cold end of tube bank heat-exchanger rig, positioned at the outside of rectangular box-like housing, the hot junction of the heat pipe bundle heat-exchanger rig and cold end it
Between, sound insulation and dust-separation are carried out by described thermal baffle.
Further, described indoor high-temperature gas circulation canal and outdoor cryogenic gas circulation canal be air blast cooling but
Heat exchanger channels.
Indoor high-temperature gas circulation canal described in which is arranged according to the gas flow of " upper entering and lower leaving "；Described is outdoor low
Warm gas circulation channel is arranged according to the gas flow of " bottom in and top out ".
Further, the air heat source in its transformer/reactor room room is determined according to expressions below：
Q=λ×（Ti-to）×（X×h+A）；
Wherein Q is indoor airflow load, and λ is building enclosure rate of heat dissipation, and ti is indoor temperature, and to is outdoor temperature, and X is to build
The fencing length of side, h are building height, and A is construction area.
The heat exchange area of its gas gas-heat exchanger is determined according to expressions below：
Heat exchange area=indoor airflow load ÷ coefficient of heat transfer empirical values ÷ heat exchange mean temperature differences
Wherein, coefficient of heat transfer empirical value takes 20W/ .k；Heat exchange mean temperature difference=outdoor temperature-interior requires temperature.
In its described gas gas-heat exchanger, the relevant parameter of single heat pipe is determined according to parameters described below：
A diameter of 12.5mm of single heat pipe；
Total length=H1 × the 2+H2 of single heat pipe, wherein, H1 is that single heat pipe is effectively long in the one side of thermal insulation board both sides
Degree, thickness of the H2 for thermal baffle；
Single spacing between each single heat pipe is 50mm；
Pipe row is 6 rows.
In its described gas gas-heat exchanger, the relevant parameter of radiating fin is determined according to parameters described below：
Heat exchange area a=0.0342/the piece of monolithic radiating fin；Piece spacing b between each monolithic radiating fin is
2.5mm；
The heat exchange area of the heat exchange area ÷ a of total fin count=gas gas-heat exchanger, its a for monolithic radiating fin；
The single-row pipe screening number of plies=H1 ÷ b, wherein H1 are unilateral effective length of the single heat pipe in thermal insulation board both sides, and b is single
Piece spacing between piece radiating fin.
The fan operation point of its described indoor high-temperature gas circulation canal and outdoor cryogenic gas circulation canal is 32Nm3/
Min, pressure drop are 240Pa.
Compared with the prior art, it is an advantage of the invention that：
1. under the situation for not carrying out indoor and outdoor direct " ventilation ", using heat exchange device for air（Gas gas heat exchange
Device）To absorb the air heat source in transformer/reactor room, thermal source is emitted into into open air using heat-conduction component, was both realized
Partition wall conducts heat, and is conducive to energy-conservation/noise reduction again；
2. adopt thermal baffle structure, it is to avoid dust gets in, keep indoor cleaning, can substantially improve transformation
The running environment of device, reactor, improves the service life of equipment；
3. in thoroughly can solving to run in general transformer and distribution power station transformer/reactor/capacitor chamber, temperature is too high, and noise is disturbed
The people and dust enrichment problem and the various equipment faults for thus causing.
Description of the drawings
Fig. 1 is the structural representation of present heat exchanger；
Fig. 2 is the operation principle schematic diagram of present heat exchanger；
Fig. 3 is present heat exchanger heat exchange principle schematic diagram；
Fig. 4 is radiation fin structure schematic diagram.
In figure, 1 is rectangular box-like housing, and 2 is thermal baffle, and 3 is heat pipe, and 4 is radiating fin, and 5 follow for indoor high-temperature gas
Ring passage, 6 are outdoor cryogenic gas circulation canal, and 7 are indoor hot-air, and 8 is cold air inside, and 9 is hot outdoor air, and 10 are
Outdoor cold air.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
In Fig. 1, technical scheme provides a kind of indoor transformer/reactor sound insulation heat sink, and which is in institute
State on the wall of transformer/reactor room, at least one rectangular box-like housing 1 is set, in rectangular box-like housing, gas is set
Gas-heat exchanger, for absorbing the air heat source in transformer/reactor room.
Its gas gas-heat exchanger is the heat exchanger that a branch of heat pipe 3 with radiating fin 4 is constituted.
Heat exchanger in the technical program, using the heat transfer modes of sound insulation/dust-separation, by indoor air heat source conduction row
Put to outdoor.
Specifically, described rectangular box-like housing is arranged with outdoor adjacent wall through the transformer/reactor room.
In described rectangular box-like housing, a thermal baffle 2 is set, for isolating to indoor and outdoor environment, is risen
To the sound insulation between the space of indoor and outdoor/dust-separation effect, and described heat pipe bundle is supported/is fixed.
On thermal baffle, the heat pipe bundle being made up of multiple heat pipes 3 is provided through, as heat-conduction component.
In the indoor and outside of the rectangular box-like housing, circulating ventilation heat exchanger channels are respectively provided with, form indoor
High-temperature gas circulation canal 5 and outdoor cryogenic gas circulation canal 6.
It is when described indoor high-temperature gas and outdoor cryogenic gas are flow through in respective passage respectively simultaneously, described
Heat pipe bundle heat exchanger is passed to the cryogenic gas of outdoor by the heat of indoor high-temperature gas, so as to the heat for realizing two kinds of gases is handed over
Change, thereby realize the sound insulation cooling of the transformer/reactor room under sound insulation/dust-separation pattern.
Further, described thermal baffle is set with the transformer/reactor room with outdoor adjacent wall coaxial line
Put.
At the heat pipe two ends positioned at the thermal baffle both sides, multigroup radiating fin 4 is provided with, heat pipe bundle is respectively constituted and is changed
The hot junction of thermal and cold end, the hot junction of its heat pipe bundle heat-exchanger rig, positioned at the indoor of rectangular box-like housing, the heat
The cold end of tube bank heat-exchanger rig, positioned at the outside of rectangular box-like housing, the hot junction of the heat pipe bundle heat-exchanger rig and cold end it
Between, sound insulation and dust-separation are carried out by described thermal baffle.
Described indoor high-temperature gas circulation canal and outdoor cryogenic gas circulation canal are air blast cooling but heat exchanger channels,
Its force ventilated power source is axial flow blower（Not shown in figure）.
As seen from the figure, the heat pipe described in which, " interior low outer height " through being arranged on thermal baffle, i.e. evaporation ends of heat pipe
（Positioned at indoor）Position be less than its condensation end（It is located outside side）.
Angle between heat pipe and thermal baffle（It is commonly called as inclination angle）α is less than 90 °, is arranged at each on same thermal baffle
Heat pipe shares one group of radiating fin.
Heat pipe inclination alpha mainly has two effects：（1）After heat pipe adopts certain inclination angle, condense in being conducive to condensation end of heat pipe
Liquid working substance afterwards rapidly returns back to evaporator section, realizes efficient heat transfer；（2）Heat pipe is using behind certain inclination angle, it is possible to increase fin with
Front face area between heat exchange wind, improves heat dispersion.
Heat transfer technology of heat pipe is in electronic device（The various IC chips such as such as CPU or high-power silicon controlled rectifier element etc.）It is cold
But the application in field is quite ripe, and self cooling and air-cooled heat-pipe radiator has been achieved with seriation and commercialization.
Heat pipe can be divided into liquid-sucking core heat pipe and hot rainbow formula heat pipe according to internal working medium reflux type.
Liquid-sucking core heat pipe is made up of shell, liquid-sucking core and end cap, and inside heat pipe is pumped into negative pressure state, and be filled with it is appropriate
Liquid, this liquid are usually phase-change material, its low boiling point, readily volatilized.Its tube wall has liquid-sucking core, and which is by capillary-porous material
Constitute.One section of heat pipe is evaporation ends, and one section is condensation end in addition, and when one section of heat pipe is heated, the liquid in capillary steams rapidly
Send out, steam flows to other end under small pressure differential, and discharges heat, into liquid, liquid is again along more for regelation
Porous materials flow back to evaporator section by the effect of capillary force, and so circulation is more than, and heat reaches other end by heat pipe one end.It is this to follow
Ring is quickly carried out, and heat can be come by continuously conduction.
Hot rainbow formula heat pipe is identical with liquid-sucking core heat pipe operation principle, is that inside heat pipe does not have imbibition where unique difference
Core or working medium do not possess stronger capillary attraction, and working medium backflow relies primarily on gravity, therefore heat pipe is generally when being disposed vertically
Just work.
Heat transfer technology of heat pipe takes full advantage of the quick thermal transport property of heat-conduction principle and refrigerant, will through heat pipe
The heat of thermal objects is delivered to outside thermal source rapidly, and its capacity of heat transmission exceedes the capacity of heat transmission of any known metal.
Using heat transfer technology of heat pipe so that heat abstractor can equally be expired even with the slow-speed of revolution, low air quantity motor
The radiating effect of meaning.
In Fig. 2, in the indoor and outside of the rectangular box-like housing, it is respectively arranged with a uptake and one
Air port, is each engaged with rectangular box-like housing and thermal baffle, constitutes a circulating ventilation heat exchanger channels.Positioned at rectangular box-like
First circulation ventilation heat exchange passage on the inside of shell chamber is referred to as indoor high-temperature gas circulation canal 5, positioned at rectangular box-like housing
The second circulation ventilation heat exchange passage of outside is referred to as outdoor cryogenic gas circulation canal 6.
Described indoor high-temperature gas circulation canal according to " upper entering and lower leaving " gas flow arrange, that is, adopt uptake for
Air inlet, lower air port are flowed to for the recyclegas of air outlet；Then indoor hot-air 7 is handed over through the heat of circulating ventilation heat exchanger channels 5
After changing, it is changed into cold air inside 8 and exports.
Described outdoor cryogenic gas circulation canal according to " bottom in and top out " gas flow arrange, that is, adopt uptake for
Air outlet, lower air port are flowed to for the recyclegas of air inlet；Then outdoor cold air 10 is handed over through the heat of circulating ventilation heat exchanger channels 6
After changing, it is changed into hot outdoor air 9 and exports.
The foundation that the gas flow of above-mentioned gas circulation canal is arranged is to carry out heat between medium based on two kinds of different temperatures
The principle of exchange, which is similar to the operation principle that heat-producing device carries out water cooling with using recirculated cooling water heat-exchanger rig,
This no longer describes in detail.
In the design or parameter determination for carrying out whole sound insulation heat sink, carry out according to following expression formula or parameter：
Air heat source in A, transformer/reactor room room is determined according to expressions below：
Q=λ×（Ti-to）×（X×h+A）；
Wherein Q is indoor airflow load, and λ is building enclosure rate of heat dissipation, and ti is indoor temperature, and to is outdoor temperature, and X is to build
The fencing length of side, h are building height, and A is construction area.
B, the heat exchange area of the gas gas-heat exchanger are determined according to expressions below：
Heat exchange area=indoor airflow load ÷ coefficient of heat transfer empirical values ÷ heat exchange mean temperature differences
Wherein, coefficient of heat transfer empirical value takes 20W/ .k；Heat exchange mean temperature difference=outdoor temperature-interior requires temperature.
In C, the gas gas-heat exchanger, the relevant parameter of single heat pipe is determined according to parameters described below：
A diameter of 12.5mm of single heat pipe；
Total length=H1 × the 2+H2 of single heat pipe, wherein, H1 is that single heat pipe is effectively long in the one side of thermal insulation board both sides
Degree, thickness of the H2 for thermal baffle；
Single spacing between each single heat pipe is 50mm；
Pipe row is 6 rows.
In D, the gas gas-heat exchanger, the relevant parameter of radiating fin is determined according to parameters described below：
Heat exchange area a=0.0342/the piece of monolithic radiating fin；Piece spacing b between each monolithic radiating fin is
2.5mm；
The heat exchange area of the heat exchange area ÷ a of total fin count=gas gas-heat exchanger, its a for monolithic radiating fin；
The single-row pipe screening number of plies=H1 ÷ b, wherein H1 are unilateral effective length of the single heat pipe in thermal insulation board both sides, and b is single
Piece spacing between piece radiating fin.
E, the indoor high-temperature gas circulation canal and outdoor cryogenic gas circulation canal（I.e. aforesaid heat exchanger cold end
And hot junction）Fan operation point be 32Nm3/ min, pressure drop are 240Pa.
Heat exchanger designs embodiment：
1st, design premises：
40 DEG C of outdoor temperature, builds floor height 4m, and indoor is for about the square space of length of side 7m, and interior is without refrigeration plant situation
Under, 55 DEG C of indoor temperature.
2nd, indoor heat load is calculated：
In the case of without refrigeration plant, the rate of heat dissipation of indoor building enclosure calculates indoor heat load：
Assume that building enclosure is 250mm thick without brick cavity wall of plastering, look into handbook and can obtain building enclosure rate of heat dissipation：1.5W/㎡
.k（Referring to《HVAC design of HVAC guides》（Lu Yaoqing is edited）, China Construction Industry Press, in May, 1996；Second
Chapter, annex 3- building exterior-protecteds and thermal resistance, P93～P94）.
Indoor load：Exterior wall rate of heat dissipation+roof rate of heat dissipation=1.5W/ .k ×（55-40）℃×（28×4+50）㎡=
3645W
Building enclosure rate of heat dissipation：λ=1.5W/㎡.k
Indoor temperature：ti=55℃
Outdoor temperature：to=40℃
The building enclosing wall length of side：X=28m
Building height:h=4m
Construction area：A=50㎡
Indoor load：Q=heat transfer coefficients × heat transfer temperature difference × building enclosure area=λ ×（ti-to）×（X×h+A）=
1.5W/㎡.k×（55-40）℃×（28×4+50）㎡=3645W；
According to more than calculate can approximate estimation indoor heat load be 3500W.
Ideally, equipment is distributed to outdoor to indoor caloric value by building enclosure, therefore is gone along with sb. to guard him
The heat dissipation capacity of structure（Indoor load）As equipment is to indoor caloric value.
3rd, operating mode is assumed：
According to 40 DEG C of outdoor temperature, indoor temperature requires 50 DEG C, and the design requirement of indoor heat load 3500W can design heat
Exchanger heat-exchanging state is as follows：
1. heat exchanger operating mode of table
| Indoor temperature（℃） | 50 | Heat exchange amount（W） | 3500 |
| Outdoor temperature（℃） | 40 | Hot junction air quantity（Nm3/min） | 32 |
| Hot junction exports（℃） | 45 | Cold end air quantity（Nm3/min） | 32 |
| Cold side outlet（℃） | 45 | Face velocity（m/s） | 3 |
4th, heat exchanger designs：
Heat exchanger heat exchange principle figure is as indicated at 3.
Coefficient of heat transfer empirical value：Take 20W/ .k；
Heat exchange mean temperature difference：50℃-45℃=5℃；
Heat exchange area estimated value：3500W÷5℃÷20W/㎡.k=35㎡；
Heat exchanger volume：W×L×H=450mm×500mm×900mm；
Pressure drop is estimated：240Pa.
5th, radiator is calculated：
Select the fin of size as shown in Figure 4, monolithic area（Length × width x thickness）, the face of monolithic fin can be obtained
Product a=0.0342/piece.
Heat pipe 15 ° inclines installation, lower end into angle with thermal baffle（Indoor end）For fire end, upper end（Outdoor end）For cold
But hold, carry out the design of radiator；
Windward side width W=380mm+ installs gap ≈ 450mm
Fin count：35 ÷ a=1024 pieces
Heat removing tube one side effective length H1=430mm
Heat exchanger length H=2 × H1+ thermal baffles thickness=860+38 ≈ 900mm
Inter fin space is set to 2.5mm
The single-row pipe screening number of plies：430÷2.5=172
Pipe row：1024 ÷, 172 ≈, 6 rows
If single spacing 50mm（45mm piece width+5mm installing spaces）
Heat exchange core body size：L1=50mm × 6 row=300mm
Assume that axial flow blower installs width：L2=200mm
Heat exchanger width：L=L1+L2=200mm+300mm=500mm
Then heat exchanger volume is：W×L×H=450mm×500mm×900mm.
6th, ventilator selection：
Can obtain according to being calculated as above, the fan operation point in heat exchanger cold end and hot junction is 32Nm3/ min, 240Pa.
This device using interior circulation absorb heat technology under the situation for not carrying out ventilating by transformer/reactor room
Heat transfer to outdoor environment makes indoor temperature tend to outdoor ambient temperature.Equipment cooling can be made, and the clear of interior can be kept
Clean/sound insulation.Also in thoroughly solving to run in general transformer and distribution power station transformer/reactor/capacitor chamber, temperature is too high, and noise is disturbed
The people and dust problems.
The method can be widely used in HVAC system design and the powered operation field of transformer/reactor room.
Claims (7)
1. a kind of indoor transformer/reactor sound insulation heat sink, including gas gas-heat exchanger, for absorbing transformer/electricity
Air heat source in anti-device room；Described gas gas-heat exchanger is that the heat pipe bundle heat that the heat pipe bundle with radiating fin is constituted is handed over
Parallel operation；Described gas gas-heat exchanger is arranged in rectangular box-like housing, described rectangular box-like housing be arranged on transformer/
On the wall of reactor room；Described rectangular box-like housing is set with outdoor adjacent wall through the transformer/reactor room
Put；One thermal baffle is set in rectangular box-like housing, for isolating to indoor and outdoor environment, indoor and outdoor space is played
Between sound insulation or dust-separation effect, and described heat pipe bundle is supported or fixed；Described thermal baffle and the transformation
Device/reactor room is coaxially set with outdoor adjacent wall；On described thermal baffle, it is provided through by multiple heat pipes
The heat pipe bundle heat exchanger of composition, as heat-conduction component；It is characterized in that：
In the indoor and outside of the rectangular box-like housing, circulating ventilation heat exchanger channels are respectively provided with, form indoor high temperature
Gas circulation channel and outdoor cryogenic gas circulation canal；
Described heat pipe bundle heat exchanger adopts the heat transfer modes of sound insulation or dust-separation, and indoor air heat source conduction is emitted into room
Outward；
When described indoor high-temperature gas and outdoor cryogenic gas are flow through in respective passage respectively simultaneously, described heat pipe
Beam heat exchanger is passed to the cryogenic gas of outdoor by the heat of indoor high-temperature gas, so as to realize the heat exchange of two kinds of gases, mat
The sound insulation cooling of this realization transformer/reactor room under sound insulation or dust-separation pattern；
Air heat source in the room of the transformer/reactor room is determined according to expressions below：
Q=λ × (ti-to) × (X × h+A)；
Wherein, Q is indoor airflow load, and λ is building enclosure rate of heat dissipation, and ti is indoor temperature, and to is outdoor temperature, and X is building
The enclosure wall length of side, h are building height, and A is construction area；
The heat exchange area of the gas gas-heat exchanger is determined according to expressions below：
Heat exchange area=indoor airflow load ÷ coefficient of heat transfer empirical values ÷ heat exchange mean temperature differences
Wherein, coefficient of heat transfer empirical value takes 20W/ k；Heat exchange mean temperature difference=outdoor temperature-interior requires temperature.
2., according to the indoor transformer described in claim 1/reactor sound insulation heat sink, it is characterized in that positioned at described heat-insulated
The heat pipe two ends of baffle plate both sides, are provided with multigroup radiating fin, respectively constitute hot junction and the cold end of heat pipe bundle heat exchanger, its institute
The hot junction of heat pipe bundle heat exchanger is stated, positioned at the indoor of rectangular box-like housing, the cold end of the heat pipe bundle heat exchanger, is located at
The outside of rectangular box-like housing, between the hot junction of the heat pipe bundle heat exchanger and cold end, is entered by described thermal baffle
Row sound insulation and dust-separation.
3., according to the indoor transformer described in claim 1/reactor sound insulation heat sink, described indoor high temperature it is characterized in that
Gas circulation channel and outdoor cryogenic gas circulation canal are air blast cooling but heat exchanger channels.
4., according to the indoor transformer described in claim 1/reactor sound insulation heat sink, described indoor high temperature it is characterized in that
Gas circulation channel is arranged according to the gas flow of " upper entering and lower leaving "；Described outdoor cryogenic gas circulation canal according to " under enter
On go out " gas flow arrange.
5., according to the indoor transformer described in claim 1/reactor sound insulation heat sink, it is characterized in that the gas gas heat is handed over
In parallel operation, the relevant parameter of single heat pipe is determined according to parameters described below：
A diameter of 12.5mm of single heat pipe；
Total length=H1 × the 2+H2 of single heat pipe, wherein, H1 is unilateral effective length of the single heat pipe in thermal baffle both sides,
Thickness of the H2 for thermal baffle；
Single spacing between each single heat pipe is 50mm；
Pipe row is 6 rows.
6., according to the indoor transformer described in claim 1/reactor sound insulation heat sink, it is characterized in that the gas gas heat is handed over
In parallel operation, the relevant parameter of radiating fin is determined according to parameters described below：
Heat exchange area a=0.0342/the piece of monolithic radiating fin；Piece spacing b between each monolithic radiating fin is
2.5mm；
The heat exchange area of the heat exchange area ÷ a of total fin count=gas gas-heat exchanger, its a for monolithic radiating fin；
The single-row pipe screening number of plies=H1 ÷ b, wherein H1 are unilateral effective length of the single heat pipe in thermal baffle both sides, and b is single
Piece spacing between piece radiating fin.
7., according to the indoor transformer described in claim 1/reactor sound insulation heat sink, the indoor High Temperature Gas it is characterized in that
The fan operation point of body circulation passage and outdoor cryogenic gas circulation canal is 32Nm3/ min, pressure drop are 240Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310647839.XA CN103683050B (en) | 2013-12-04 | 2013-12-04 | Sound-insulation cooling device for indoor transformer/electric reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310647839.XA CN103683050B (en) | 2013-12-04 | 2013-12-04 | Sound-insulation cooling device for indoor transformer/electric reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103683050A CN103683050A (en) | 2014-03-26 |
| CN103683050B true CN103683050B (en) | 2017-03-22 |
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| CN201310647839.XA Active CN103683050B (en) | 2013-12-04 | 2013-12-04 | Sound-insulation cooling device for indoor transformer/electric reactor |
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| CN103944085B (en) * | 2014-04-23 | 2016-05-11 | 国网上海市电力公司 | A kind of heat abstractor of box type transformer low-pressure chamber |
| CN107565407A (en) * | 2016-09-06 | 2018-01-09 | 张荟芬 | Freeze-day with constant temperature electric power distributing cabinet |
| CN109510088A (en) * | 2018-12-11 | 2019-03-22 | 国网新疆电力有限公司乌鲁木齐供电公司 | DC charging screen dust-proof radiating cabinet |
| CN109725689A (en) * | 2018-12-25 | 2019-05-07 | 东南大学 | Cabinet combines radiator and its control method |
| CN111600222B (en) * | 2020-06-16 | 2022-03-29 | 河南里程碑科技有限公司 | High-efficient heat dissipation type distribution automation monitor terminal |
| CN112380751B (en) * | 2020-11-20 | 2022-11-08 | 三峡大学 | Design method of reactor sound insulation device and rain-proof cap |
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