CN108471066A - One kind being used for container-type current transformer closed cooling system - Google Patents

One kind being used for container-type current transformer closed cooling system Download PDF

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Publication number
CN108471066A
CN108471066A CN201810127697.7A CN201810127697A CN108471066A CN 108471066 A CN108471066 A CN 108471066A CN 201810127697 A CN201810127697 A CN 201810127697A CN 108471066 A CN108471066 A CN 108471066A
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China
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air
container
current transformer
heat exchanger
finned heat
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CN201810127697.7A
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CN108471066B (en
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周慧
郭凤朝
葛跃群
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Cool Cooling Technology (shanghai) Co Ltd
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Cool Cooling Technology (shanghai) Co Ltd
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56Cooling; Ventilation

Abstract

The present invention discloses a kind of for container-type current transformer closed cooling system, including current transformer, reversed return type air duct, air water cooling module, adiabatic enclosed cooler, pump group module and control system;Current transformer, reversed return type air duct and air water cooling module, which are set in container, forms gas circulation in container;Adiabatic enclosed cooler and pump group module are set to outside container, and the cold of natural environment is delivered to the air water cooling module in container by outer water cycle.Ensure that ventilation temperature is uniform in container and current transformer cooling capacity is consistent using reversed return type design for return airway;The wind turbine of adiabatic enclosed cooler, the water pump of pump group module use Frequency Conversion Design, and the valve of pump group module uses regulating valve, and is all controlled by control system, has saved energy consumption;Pump group module uses modularized design, reduces the site operation period.

Description

One kind being used for container-type current transformer closed cooling system
Technical field
The invention belongs to industrial cooling system technical fields, are related to wind-force and field of photovoltaic power generation, and in particular to Yi Zhongyong In container-type current transformer closed cooling system.
Background technology
Use container-type rotary substation in photovoltaic and wind power generation field, container-type rotary substation collection transformer, rectifier, DC cabinet is integrated in one, and modularization transport uses, and constructs without in-site installation, photovoltaic and wind power station application environment are a variety of more Sample, is normally at that inland region is wide or coastal location, and freshwater resources are rare, and application environment is different, meeting heat dissipation ventilation Under the premise of, container house needs good dust-proof, waterproof, etch-proof ability.The calorific value of transformer is larger and pyrotoxin It concentrates, current transformer is made of multiple PCS cabinets modules, and each module is made of several small heat-generating units, and calorific value is big but divides It dissipates.
The cooling technology of container rotary substation requires to need good dust-proof, waterproof, and the temperature of circulated air is complete in container Meet heat-producing device cooling requirement year, and ventilation temperature is uniform;Fever needs to cool down container internal heat generation equipment throughout the year, power consumption It is more lower better to measure water consumption;Container rotary substation is modularization, it is desirable that cooling system also answers modularization to transport and install;Container Formula rotary substation requires to safeguard that simple, maintenance cost is relatively low.
Existing container-type rotary substation cooling technology mainly has several:
1, outside ambient air is fed directly to by air-introduced machine in container after filtering, is heated by heat-generating units Discharge is outdoor afterwards, which carries out natural cooling using the cold of environment, and the power consumption of air-introduced machine is low, and use cost is low, But when summer environment temperature is high, air themperature is higher in container, and minimum temperature is the dry bulb of surrounding air in container Temperature, summer capacity are insufficient;Outside air is directly sucked in, it is contemplated that dust-proof demand needs frequent clean or more ventilates Filter device avoids causing to block, and maintenance cost is higher, is suitable for air quality preferably region.
2, it is cooled down using industrial air-conditioning, outer machine, type of cooling cooling are installed in machine in installation in container, container side Ability is sufficient, but industrial air-conditioning often uses compression-type refrigerating system, and compressor horsepower is relatively high, and power consumption is big;Standard chemical industry Air-conditioner set air circulation is small, and cycle-index is few in container, and air hose channel is designed using simple-type off course formula, in container Current transformer inlet air temperature height is uneven, is unfavorable for the cooling of rectifier.
Invention content
The present invention is insufficient, poor for applicability for wind turbine direct cooling technology summer capacity in existing cooling technology, dimension Problem of high cost is protected, the limitation and industrial air-conditioning cooling technology power consumption that air is not suitable in different zones are big and cooling The non-uniform problem of ability provides a kind of for container-type current transformer closed cooling system.
The purpose of the present invention can be realized by following technical proposals:One kind is cooled down for container-type current transformer enclosed System, including current transformer, reversed return type air duct, air water cooling module, adiabatic enclosed cooler, pump group module and control system;It is described Current transformer, reversed return type air duct and air water cooling module are set in container, multiple current transformers built in the container, each unsteady flow Exhaust blower built in device, the reversed return type air duct includes the air-supply passage and return air channel by each current transformer, by each becoming The total length of the air-supply passage and return air channel that flow device is consistent, and the air water cooling module includes that the first wind turbine and the first fin change Hot device, the first wind turbine pump the gas in the return air channel of each current transformer, after passing the gas through the cooling of the first finned heat exchanger Again in dispatch to the air-supply passage of each current transformer;The thermal insulation enclosed cooler and pump group module are set to outside container, institute It includes the second wind turbine, the second finned heat exchanger, shell, air-inlet window and adiabatic humidiflcation device, the second wing to state adiabatic enclosed cooler The cooling medium inlet of piece heat exchanger is connected by pipeline with the cooling media outlet of the first finned heat exchanger, and the second wind turbine is taken out Surrounding air is sent, surrounding air is made to enter in shell from air-inlet window, passes through adiabatic humidiflcation device and the second finned heat exchanger successively And to the cooling medium cooling in the second finned heat exchanger, the pump group module includes water pump and triple valve, the import of triple valve It is connected with the cooling media outlet of the second finned heat exchanger by pipeline and water pump is set on the pipeline, two of triple valve goes out Mouth respectively by the cooling medium inlet of the cooling medium inlet and the second finned heat exchanger of pipeline and the first finned heat exchanger and Pipeline between the cooling media outlet of first finned heat exchanger is connected, and water pump is by the cooling medium in the second finned heat exchanger It is delivered in the first finned heat exchanger, the cooling medium in the first finned heat exchanger is back to the second fin using pipeline overbottom pressure and changes Hot device;Wherein, first wind turbine, the second wind turbine, water pump and triple valve are connect with control system respectively.
Further, the multiple current transformer is relatively symmetrically arranged to two rows of and often arranges current transformer along container length side To arrangement.
Further, the air water cooling module further includes air-conditioning tank shell and plenum chamber, the top setting of air-conditioning tank shell First wind turbine, is equipped with return air inlet above the first wind turbine, and the side of air-conditioning tank shell is equipped with air outlet, along level in air-conditioning tank shell Direction is set up in parallel plenum chamber and the first finned heat exchanger, and plenum chamber is corresponding up and down with the first wind turbine, and plenum chamber is by the first wind turbine Wind direction by switching to level from top to bottom, the first finned heat exchanger is between plenum chamber and air outlet.
Further, the second wind turbine, the correspondence second in shell is arranged in the top of the shell of the adiabatic enclosed cooler Setting the second finned heat exchanger in place's below wind turbine, equipped with adiabatic humidiflcation area below the second finned heat exchanger, adiabatic humidiflcation area be by Polylith air-inlet window surrounds, and adiabatic humidiflcation device is set in adiabatic humidiflcation area.Further, second finned heat exchanger Quantity is two, and two the second finned heat exchangers are relatively symmetrically obliquely installed and whole side arrangement is in the shape of the letter V, the number of air-inlet window Amount is three pieces and three pieces of air-inlet window entirety sides arrangements are in up-side down triangle.
Further, the pump group module further includes filter, and filter is set to import and the first fin of triple valve On pipeline between the cooling medium inlet of heat exchanger.
Further, the control system, which is also connected with control, temperature sensor, pressure sensor and solenoid valve;Temperature passes Sensor is set to the entrance of air-supply passage, and the triple valve is three-way control valve, and three-way control valve is according to temperature sensing The high high adjustment aperture of temperature of device;Pressure sensor is set at the cooling medium inlet of the second finned heat exchanger, and described Water pump is variable frequency pump, and the running frequency of variable frequency pump is according to the Signal Regulation of pressure sensor;The adiabatic humidiflcation device connects It is connected to water supply pipe, solenoid valve is set on water supply pipe.Further, the pump group module further includes expansion drum, and expansion drum is set Be placed on the pipeline between the import of triple valve and the cooling medium inlet of the first finned heat exchanger, water supply pipe branch out pipeline with Expansion drum is connected.Still further, second wind turbine is frequency conversion fan.
Further, the pump group module, adiabatic enclosed cooler are connected with each interface of container using hose.
Beneficial effects of the present invention:1, the cold of natural environment is delivered to the air water cooling mould in container by outer water cycle Cold is uniformly delivered to each rectifier from air water cooling device and cooled down by block, internal wind cycle, and outside air does not enter Internal container, the equipment such as protection internal rectifier are isolated from the environment, and substantially reduce the maintenance of equipment main equipment and cooling equipment Frequency;
2, the operation power consumption of closed cooling system is mainly that air water cooling module wind turbine, frequency conversion water circulating pump and adiabatic enclosed are cold But the power consumption of device wind turbine makes full use of the cold of natural environment, power consumption compared with compression-type refrigerating system in the prior art It substantially reduces;
3, the air quantity of air water cooling module is larger compared with standardizing industrial air-conditioning fan delivery, reduces rate of ventilation, reduces It is designed using reversed return type for the return air temperature difference, and for return airway, each air duct windage is consistent, it is ensured that ventilation temperature is equal in container Even and current transformer cooling capacity is consistent;
4, adiabatic enclosed cooler uses frequency conversion fan air inducing, summer to cool down surrounding air adiabatic humidiflcation, reduces air Temperature can reduce heat exchanger surface temperature compared with air cooler in the prior art, meet cooling requirement to wet-bulb temperature, with Cooling tower in the prior art is compared, and water consumption substantially reduces, bacteria breed, water pollution issue in outer circulation water pond, significantly Operation and maintenance are reduced, therefore wind pushing temperature in container can be met using adiabatic enclosed cooler throughout the year and be less than design temperature, And the season in addition to summer sweltering heat weather uses dry calibration, reduces the running frequency of frequency conversion fan, greatlys save energy consumption;
5, pump group module variable frequency pump designs, and provides closed water system circulation power, it can be achieved that pressure-stabilizing water supply, energy-saving and frequency-variable Water pump, modularization making and transport are run, the period of site operation is reduced;
6, the ventilation temperature in centralized control system control container is less than design temperature, by adjusting pump group frequency conversion water The frequency conversion fan and adiabatic humidiflcation solenoid valve of pump, three-way control valve, adiabatic enclosed cooler, it is ensured that ventilation temperature is less than design temperature Degree, and the cooling capacity of natural environment is utmostly utilized, the running frequency of water pump and wind turbine is reduced, realizes energy saving of systemization fortune Row.
Description of the drawings
Fig. 1 is the schematic diagram of closed cooling system of the present invention.
Fig. 2 is equipment in container horizontal layout schematic diagram.
Fig. 3 is Section A-A schematic diagram in Fig. 2.
Fig. 4 is section B-B schematic diagram in Fig. 2.
Fig. 5 is C-C schematic cross-sections in Fig. 2.
Fig. 6 is the structural schematic diagram of adiabatic enclosed cooler.
Fig. 7 is the side view inside adiabatic enclosed cooler.
Fig. 8 is the structural schematic diagram of pump group module.
The structural schematic diagram of Fig. 9 systems in order to control.
Figure 10 is the structure schematic diagram in reversed return type air duct.
Figure 11 is the structure schematic diagram in off course formula air duct.
Part numbers are as follows in figure:
1 current transformer;
2 reversed return type air ducts, 201 air-supply passages, 202 first air return sections, 203 second air return sections, 204 third air return sections, 205 4th air return section, 206 the 5th air return sections;
3 air water cooling modules, 301 return air inlets, 302 first wind turbines, 303 terminal boxs, 304 plenum chambers, 305 maintenance doors, 306 Air-conditioning tank shell, 307 first finned heat exchangers, 308 temperature sensors, 309 air outlets;
4 adiabatic enclosed coolers, 401 second wind turbines, 402 second finned heat exchangers, 403 holders, 404 pressure sensors, 405 air-inlet windows, 406 solenoid valves, 407 adiabatic humidiflcation devices;
5 pump group modules, 501 water pumps, 502 filters, 503 pipe fittings, 504 triple valves, 505 expansion drums, 506 pedestals;
6 control systems;
7 hoses;
8 water supply pipes.
Specific implementation mode
Below in conjunction with the attached drawing specific implementation mode that the present invention will be described in detail, those skilled in the art is made to become apparent from geography How solution puts into practice the present invention.Although describing the present invention in conjunction with its preferred embodiment, these embodiments are It illustrates, rather than limits the scope of the invention.
Referring to Fig. 1, one kind being used for container-type current transformer closed cooling system, including current transformer 1, reversed return type air duct 2, sky Water cooling module 3, adiabatic enclosed cooler 4, pump group module 5 and control system 6.The current transformer 1, reversed return type air duct 2 and empty water Chill block 3 is set in container;Multiple current transformers 1 built in the container, exhaust blower built in each current transformer 1 are described same Formula air duct 2 includes the air-supply passage 201 and return air channel by each current transformer 1, by the air-supply passage of each current transformer 1 201 is consistent with the total length of return air channel, and the air water cooling module 3 includes the first wind turbine 302 and the first finned heat exchanger 307, the first wind turbine 302 pumps the gas in the return air channel of each current transformer 1, passes the gas through the first finned heat exchanger 307 After cooling again in dispatch to the air-supply passage 201 of each current transformer 1, the interior cycle of closed cooling system is thus constituted.It is described exhausted Hot enclosed cooler 4 and pump group module 5 are set to outside container;The thermal insulation enclosed cooler 4 includes the second wind turbine 401, the Two finned heat exchangers 402, shell, air-inlet window 405 and adiabatic humidiflcation device 407, the cooling medium of the second finned heat exchanger 402 into Mouth is connected by pipeline with the cooling media outlet of the first finned heat exchanger 307, and the second wind turbine 401 pumps surrounding air, makes Surrounding air enters from air-inlet window 405 in shell, right by adiabatic humidiflcation device 407 and the second finned heat exchanger 402 successively Cooling medium cooling in second finned heat exchanger 402, the pump group module 5 include water pump 501 and triple valve 504, triple valve 504 import is connected with the cooling media outlet of the second finned heat exchanger 402 by pipeline and water pump is arranged on the pipeline 501, two outlets of triple valve 504 pass through the cooling medium inlet and the second wing of pipeline and the first finned heat exchanger 307 respectively Pipeline between the cooling medium inlet of piece heat exchanger 402 and the cooling media outlet of the first finned heat exchanger 307 is connected, water Cooling medium in second finned heat exchanger 402 is delivered in the first finned heat exchanger 307 by pump 501, the first finned heat exchanger Cooling medium in 307 heats up after cooling down to internal container gas, and the second finned heat exchanger is back to using pipeline overbottom pressure 402, thus constitute the outer circulation of closed cooling system.
In the specific implementation, in container current transformer 1 construction:Referring to Fig. 2, the relatively symmetrically cloth of the multiple current transformer 1 It is set to two rows of and often row's current transformer 1 is arranged along container length direction.
The construction in reversed return type air duct 2:Referring to Fig. 2 to Fig. 5, often arranges current transformer 1 and correspond to an air-supply passage 201 and one Return air channel, often arranges the air-supply passage 201 of current transformer 1 and return air channel is respectively the air-supply of each current transformer 1 of place row and returns Wind, the air-supply passages 201 of two rows of current transformers 1 are the return air channel of current transformer 1 often to be arranged with a part since current transformer 1 successively It is divided into the first air return section 202, the second air return section 203, third air return section 204, the 4th air return section 205 and the 5th air return section 206;The One air return section 202 is bonded container length direction side wall and moves towards to be arranged along container height direction, gas in the first air return section 202 Body flow direction is referring to the arrow upward direction into arrow upward direction in, Fig. 3 and Fig. 4 outward of wind direction in Fig. 2;Second air return section 203 fitting container length directions side wall sum aggregates vanning top surface, and move towards setting, the second return air along container length direction Section 203 in gas flow referring to wind direction in arrow left direction in arrow left direction, Fig. 3 in Fig. 2 and Fig. 4 outward to;The Three air return sections 204 are bonded container top surface and container width direction side wall, since two rows of current transformers 1 are symmetrical structure so that The third air return section 204 of two rows of current transformers 1 arranges that gas flow is referring to figure in the third air return section 204 of two rows of current transformers 1 in opposite directions Two arrow directions of top side horizontally towards each other, two rows of current transformers in the leftmost side vertical opposite two arrow directions and Fig. 4 in 2 Gas phase is collected in 1 third air return section 204;4th air return section 205 of two rows of current transformers 1 is with a part, the 4th air return section 205 are bonded container top surfaces and move towards setting along container length direction, and the 4th air return section 205 is between two rows of current transformers 1 Passageway, come together in the gas flow in the 4th air return section 205 referring to wind direction in arrow right direction, Fig. 4 in Fig. 2 inwardly side To with arrow right direction in Fig. 5;5th return air end of two rows of current transformers 1 is also with a part, and the 5th air return section 206 is along packaging Case height moves towards setting and the return air inlet 301 for connecting the first wind turbine 302, and gas flow is referring to figure in the 5th air return section 206 In 4 arrow in downward direction with arrow in Fig. 5 in downward direction.Moreover, often the first air return section 202 of row's 1 return air channel of current transformer, the Two air return sections 203, third air return section 204, the 4th air return section 205 and the 5th air return section 206 are respectively equipped with and prevent and air-supply passage 201 alter the partition board of wind, and the partition board in Fig. 2 to Fig. 4 is drawn using overstriking lines.
The construction of air water cooling module 3:Referring to Fig. 5, it includes the first wind turbine 302 and the first fin that the air water cooling module 3, which is removed, Further include air-conditioning tank shell 306 and plenum chamber 304 outside heat exchanger 307, the first wind turbine is arranged in the top of air-conditioning tank shell 306 302, the first wind turbine 302 is equipped with return air inlet 301 above, is used for return air channel return air, and the side of air-conditioning tank shell 306 is equipped with outlet air Mouth 309 is blown for air-supply passage 201, and plenum chamber 304 and the first wing are set up in parallel in the horizontal direction in air-conditioning tank shell 306 Piece heat exchanger 307, plenum chamber 304 is corresponding with the first about 302 wind turbine, and plenum chamber 304 is by the wind direction of the first wind turbine 302 by from upper Switch to level under, the first finned heat exchanger 307 is between plenum chamber 304 and air outlet 309.When packaging the temperature inside the box is higher Return air when entering air water cooling module 3, enter return air inlet 301 before this, enter following plenum chamber after the supercharging of the first wind turbine 302 In 304, wind direction is being switched to level by plenum chamber 304 from top to bottom, and uniform wind speed and improve static pressure and can air feed obtain more Far, the higher wind of temperature is conveyed by air outlet 309 in air-supply passage 201 after the cooling of the first finned heat exchanger 307.
More specifically, first wind turbine 302 is turbofan;The air water cooling module 3 further includes terminal box 303, end Sub- case 303 is set in air-conditioning tank shell 306, is used for circuit switching;The air-conditioning tank shell 306 is equipped with maintenance door 305, Convenient for being overhauled to the component in air-conditioning tank shell 306.
The construction of adiabatic enclosed cooler 4:Referring to Fig. 6 and Fig. 7, set at the top of the shell of the thermal insulation enclosed cooler 4 The second wind turbine 401 is set, the second finned heat exchanger 402, the heat exchange of the second fin are set at 401 lower section of the second wind turbine of correspondence in shell 402 lower section of device is equipped with adiabatic humidiflcation area, and adiabatic humidiflcation area is surrounded by polylith air-inlet window 405, and adiabatic humidiflcation device 407 is arranged In in adiabatic humidiflcation area.
More specifically, the quantity of second finned heat exchanger 402 is two, two the second finned heat exchangers 402 are opposite Ground is claimed to be obliquely installed and the arrangement of whole side is in the shape of the letter V, the quantity of air-inlet window 405 is three pieces and three pieces of 405 unitary sides of air-inlet window Face arrangement is in up-side down triangle, and shell supports certain altitude, the second finned heat exchanger 402, the inverted triangle of V-shaped by holder 403 The adiabatic humidiflcation area of shape and the shell with certain altitude are conducive to pumping for surrounding air, and the flow direction of surrounding air is referring to Fig. 7 In direction shown in line with the arrow.
The adiabatic humidiflcation device 407 of the thermal insulation enclosed cooler 4 is connected with water supply pipe 8, is given for adiabatic humidiflcation device 407 Water, water supply pipe 8 are equipped with solenoid valve 406, and solenoid valve 406 is so that adiabatic enclosed cooler 4 divides according to the variation of environment temperature For two kinds of operational modes, when summer environment temperature is higher, solenoid valve 406 is opened, and adiabatic humidiflcation device 407 works, and environment is empty Gas reduces temperature after 407 adiabatic humidiflcation of adiabatic humidiflcation device of adiabatic enclosed cooler 4, it is ensured that summer capacity;Its His season environment temperature is low, and solenoid valve 406 is closed, and closes adiabatic humidiflcation device 407, is dry air cooled heat exchanger, second under the pattern Wind turbine 401 uses fall-back, ensures effluent temperature constancy, reduces the operation power of the second wind turbine 401, substantially reduces cooler Energy consumption.
The construction of pump group module 5:Referring to Fig. 8, the pump group module 5 is also wrapped in addition to including water pump 501 and triple valve 504 Include the filter 502 for impurity screening, filter 502 is set to import and the first finned heat exchanger 307 of triple valve 504 On pipeline between cooling medium inlet.More specifically, the filter 502 is basket filter.
In the specific implementation, the air water cooling module 3 further includes temperature sensor 308, and temperature sensor 308 is set to At air outlet 309, the entrance of air-supply passage 201, the triple valve 504 are three-way control valve, three-way control valve root in other words According to the high high adjustment aperture of the temperature of temperature sensor 308, temperature is higher, and the aperture of three-way control valve is smaller, three-way control valve Aperture is 30%~90%, and when the aperture of three-way control valve is minimum 30%, the temperature that temperature sensor 308 detects is still below Set temperature then reduces the frequency of the second wind turbine 401, to reduce the operation energy consumption of adiabatic enclosed cooler 4;Second wind turbine 401 be frequency conversion fan, and adiabatic enclosed cooler 4 further includes pressure sensor 404, and pressure sensor 404 is set to the second fin At the cooling medium inlet of heat exchanger 402, the water pump 501 is variable frequency pump, and the running frequency of variable frequency pump is passed according to pressure The Signal Regulation of sensor 404, operating pressure reduce variable frequency pump running frequency higher than setting pressure, less than setting pressure, increase Variable frequency pump running frequency.Wherein, referring to Fig. 9, first wind turbine 302, temperature sensor 308, the second wind turbine 401, pressure Sensor 404, solenoid valve 406, water pump 501 and triple valve 504 are respectively connected to control system 6, and are controlled by control system 6.
It expands with heat and contract with cold caused stress to stablize the suction pressure of variable frequency pump, absorbing cooling medium in closed system, pump Group module 5 further includes expansion drum 505, expansion drum 505 be set to triple valve 504 import and the first finned heat exchanger 307 it is cold But on the pipeline between medium entrance, water supply pipe 8 branches out pipeline and is connected with expansion drum 505, is 505 water supply of expansion drum.Pump group Each component of module 5 can be used pipe fitting 503 and be connected and be fixed on a pedestal 506, so constitute modularized design, pump group mould Block 5 can realize pressure-stabilizing water supply, energy-saving and frequency-variable operation water pump 501, modularization making and transport, reduce the period of site operation.Pump Group module 5, adiabatic enclosed cooler 4 and each interface of container are connected using heat-preserving hose 7, are constructed, are adopted without field pipes Swell-shrinking stress caused by hose 7 is opened, stopped due to water pump 501 can be absorbed with expansion drum 505.
First finned heat exchanger 307 and the second finned heat exchanger 402 are in actual use using with splendid heat transfer characteristic Copper pipe aluminum fin heat exchanger.
Existing cooling technology cools down the current transformer 1 of internal container using single flow air or industrial air-conditioning, but It is to exist to be respectively present frequent maintenance, influence 1 service life of current transformer and the non-uniform drawback of high energy consumption, ventilation temperature, it is of the invention The adiabatic enclosed cooler 4 that closed cooling system uses for primary side cool down equipment, using external circulating system by cold quantity transmission extremely Interior cycle cools down equipment air water cooling module 3 by secondary side and cools down interior cycle wind-warm syndrome.The air feed air of current transformer 1 in container 35~40 DEG C of temperature requirement carries out natural cooling according to traditional air cooler, the dry-bulb temperature of environment under summer sweltering heat weather More than 35~40 DEG C, the leaving water temperature of air cooler is more than 35~40 DEG C, and the cooling capacity of air cooler is inadequate, is opened when summer adiabatic The adiabatic humidiflcation function of enclosed cooler 4 carries out adiabatic humidiflcation to air inlet air, humidifies to wet-bulb temperature, in Shanghai, can Air inlet air is cooled to 28.3 DEG C respectively, cooling water outlet temperature can be down to 32 DEG C, design 5 DEG C of air water cooling heat transfer temperature difference, because This can ensure that ventilation temperature is less than 37 DEG C, meet summer sizzler air cooling demand, ventilation temperature is lower, needs to design cold But equipment heat exchanger is bigger.
Referring to Figure 10 and Figure 11, internal container Duct design of the invention flows through each current transformer at reversed return type air duct 2 1 air duct length is consistent, therefore windage is consistent, and the cooling air quantity of each current transformer 1 is identical, it can be ensured that and intake adit temperature is uniform, And off course formula Duct design is used, distance is blown, and close 1 air flow rate of current transformer is big, and temperature is relatively low, the unsteady flow far from air outlet 1 air flow rate of device is small, and temperature is relatively high, can there is a situation where that 1 temperature of current transformer of separate air outlet is excessively high.
The prior art is cooled down using industrial air-conditioning, and by taking rated thermal amount 126kw as an example, the air quantity of industrial standard air-conditioning is 10000m3/ h, and in order to cope with a fairly large number of current transformer 1 ensure wind pushing temperature deviation be less than 1 DEG C, design air flow should improve to 30000m3/ h is non-standard de-sign for industrial air-conditioning, and the air quantity of air water cooling module 3 of the invention can be set according to demand Meter meets.For the cooling system of the present invention compared with industrial air-conditioning in the prior art cools down, energy conservation characteristic is apparent, and first, comparison The compression-type refrigerating system of air-conditioning, compressor-free, air water cooling power of fan of the invention, 501 power of water pump, adiabatic enclosed cooling The specified summation power of device 4 is 11kw, is far below the compressor horsepower 54kw of industrial air-conditioning;Second, the present invention uses energy saving control System 6 processed, configuration variable frequency pump, frequency conversion fan, when operating in non-summer sweltering heat operating mode, running frequency declines, it is ensured that water outlet Temperature is constant, makes full use of the cold of natural environment.Find out that the system has a clear superiority from performance driving economy comparison.It is specific right Than referring to following table 1.
Table 1
It should be pointed out that for the present invention through absolutely proving, can also have the embodiment of a variety of transformation and remodeling, It is not limited to the specific embodiment of the above embodiment.Above-described embodiment as just the present invention explanation, rather than to this The limitation of invention.In short, protection scope of the present invention should include that those are apparent to those skilled in the art Transformation or replacement and remodeling.

Claims (10)

1. one kind being used for container-type current transformer closed cooling system, which is characterized in that including current transformer, reversed return type air duct, sky Water cooling module, adiabatic enclosed cooler, pump group module and control system;
The current transformer, reversed return type air duct and air water cooling module are set in container, multiple current transformers built in the container, Exhaust blower built in each current transformer, the reversed return type air duct includes the air-supply passage and return air channel by each current transformer, warp The total length of the air-supply passage and return air channel of crossing each current transformer is consistent, and the air water cooling module includes the first wind turbine and the One finned heat exchanger, the first wind turbine pump the gas in the return air channel of each current transformer, pass the gas through the heat exchange of the first fin After device cooling again in dispatch to the air-supply passage of each current transformer;
The thermal insulation enclosed cooler and pump group module are set to outside container, and the thermal insulation enclosed cooler includes the second wind Machine, the second finned heat exchanger, shell, air-inlet window and adiabatic humidiflcation device, the cooling medium inlet of the second finned heat exchanger pass through Pipeline is connected with the cooling media outlet of the first finned heat exchanger, and the second wind turbine pumps surrounding air, make surrounding air from into Air regulator enters in shell, successively by adiabatic humidiflcation device and the second finned heat exchanger to the cooling in the second finned heat exchanger Medium cooling, the pump group module include water pump and triple valve, and the import of triple valve passes through pipeline and the second finned heat exchanger Cooling media outlet is connected and water pump is arranged on the pipeline, and two outlets of triple valve are changed by pipeline and the first fin respectively The cooling medium of the cooling medium inlet and the first finned heat exchanger of the cooling medium inlet of hot device and the second finned heat exchanger goes out Pipeline between mouthful is connected, and the cooling medium in the second finned heat exchanger is delivered in the first finned heat exchanger by water pump, the Cooling medium in one finned heat exchanger is back to the second finned heat exchanger using pipeline overbottom pressure;
Wherein, first wind turbine, the second wind turbine, water pump and triple valve are connect with control system respectively.
2. according to claim 1 be used for container-type current transformer closed cooling system, which is characterized in that the multiple change Stream device is relatively symmetrically arranged to two rows of and often row's current transformer is arranged along container length direction.
3. according to claim 1 be used for container-type current transformer closed cooling system, which is characterized in that the air water cooling Module further includes air-conditioning tank shell and plenum chamber, and the top of air-conditioning tank shell is arranged the first wind turbine, is equipped with back above the first wind turbine The side in air port, air-conditioning tank shell is equipped with air outlet, and plenum chamber and the first wing are set up in parallel in the horizontal direction in air-conditioning tank shell Piece heat exchanger, plenum chamber and the first wind turbine are corresponding up and down, plenum chamber by the wind direction of the first wind turbine by switching to level from top to bottom, the One finned heat exchanger is between plenum chamber and air outlet.
4. according to claim 1 be used for container-type current transformer closed cooling system, which is characterized in that the thermal insulation is closed The second wind turbine is arranged in the top of the shell of formula cooler, and the second fin of setting exchanges heat at the second wind turbine of correspondence lower section in shell Device, the second finned heat exchanger lower section are equipped with adiabatic humidiflcation area, and adiabatic humidiflcation area is surrounded by polylith air-inlet window, adiabatic humidiflcation device It is set in adiabatic humidiflcation area.
5. according to claim 4 be used for container-type current transformer closed cooling system, which is characterized in that second wing The quantity of piece heat exchanger is two, and two the second finned heat exchangers are relatively symmetrically obliquely installed and whole side arrangement is in the shape of the letter V, The quantity of air-inlet window is three pieces and three pieces of air-inlet window entirety side arrangements are in up-side down triangle.
6. according to claim 1 be used for container-type current transformer closed cooling system, which is characterized in that the pump group mould Block further includes filter, and filter is set to the pipe between the import of triple valve and the cooling medium inlet of the first finned heat exchanger On the road.
7. according to claim 1 be used for container-type current transformer closed cooling system, which is characterized in that the control system System, which is also connected with control, temperature sensor, pressure sensor and solenoid valve;Temperature sensor is set to the entrance of air-supply passage, And the triple valve is three-way control valve, and three-way control valve is according to the high high adjustment aperture of temperature of temperature sensor;Pressure passes Sensor is set at the cooling medium inlet of the second finned heat exchanger, and the water pump is variable frequency pump, the fortune of variable frequency pump Line frequency is according to the Signal Regulation of pressure sensor;The adiabatic humidiflcation device is connected with water supply pipe, and solenoid valve is set to moisturizing Guan Shang.
8. according to claim 7 be used for container-type current transformer closed cooling system, which is characterized in that the pump group mould Block further includes expansion drum, and expansion drum is set to the pipe between the import of triple valve and the cooling medium inlet of the first finned heat exchanger On the road, water supply pipe branches out pipeline and is connected with expansion drum.
9. according to claim 8 be used for container-type current transformer closed cooling system, which is characterized in that second wind Machine is frequency conversion fan.
10. according to any one of claims 1 to 9 be used for container-type current transformer closed cooling system, which is characterized in that institute State pump group module, adiabatic enclosed cooler is connected with each interface of container using hose.
CN201810127697.7A 2018-02-07 2018-02-07 Closed cooling system for container type converter Active CN108471066B (en)

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