CN1852648A - Machine-cabinet temperature controlling system, device and method - Google Patents
Machine-cabinet temperature controlling system, device and method Download PDFInfo
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- CN1852648A CN1852648A CN 200610033988 CN200610033988A CN1852648A CN 1852648 A CN1852648 A CN 1852648A CN 200610033988 CN200610033988 CN 200610033988 CN 200610033988 A CN200610033988 A CN 200610033988A CN 1852648 A CN1852648 A CN 1852648A
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Abstract
The temperature control system includes heat elimination air flue including air inlet and air outlet, and reflow dual flue including first air inlet and first air outlet. The first air inlet and first air outlet of reflow dual flue are connected to the air outlet and air inlet of the heat elimination air flue. Heat elimination fan system is setup in the heat elimination air flue. Circulating fan system is setup in the reflow dual flue. Under environment in normal temperature, the invention does not need of using additional heating unit. Using heat consumption of equipment self, the invention carries out heating to reduce relative humidity in cabinet, inhibit corrosion, save energy, and guarantee reliable heat elimination for equipment.
Description
Technical field
The present invention relates to the plant equipment of the electronics or the communications field, temperature control system, device and method that particularly a kind of rack is used.
Background technology
During place that no weather protection such as that equipment such as communication, electronics or electric power are installed in is open-air, simple and easy machine room and temperature are regulated, usually need to take safeguard procedures.Common safeguard procedures are that equipment is installed in outdoor cabinet or outdoor installed device case or the work box, yet, because most electric energy that equipment consumes in running can be converted into heat energy, make the temperature in the rack constantly rise, serious threat is to the operate as normal of equipment, therefore, in order to make temperature maintenance in the rack within equipment operate as normal allowed band, need in time get rid of the heat in the rack.
Common cabinet temperature controlling schemes is that temperature conditioning unit is installed in rack, and this temperature conditioning unit mainly comprises heat exchanger and air-conditioning.Adopt heat exchanger and air-conditioning to completely cut off rack and external environment, the protection effect of the dust of environment, salt etc. is best to external world, and the common shortcoming of heat exchanger and air-conditioning is to take very big volume, and noise ratio is bigger.In addition, adopt the air themperature in the rack of heat exchanger can be higher than external environment all the time, the ability of the high ambient temperature that this has just reduced that equipment can bear in the rack, and that the shortcoming of air-conditioning is a reliability is low, and need to consume a large amount of electric energy, operating cost height.
Rack also has and a kind of the external environment air is directly introduced the scheme of dispelling the heat in the rack except adopting temperature conditioning unit, i.e. direct ventilation and heat scheme.As shown in Figure 1, directly the ventilation and heat scheme mainly is that design is opened ventilation hole 200,300 to rack 100 interior veneers and module ventilation heat radiation on rack 100.The inner general also built-in fans 400 intensified ventilation effects of rack.In order to reduce relative humidity, arrange that in rack 500 pairs of air of heater heat the humidity that reduces air thereby adopt.When ambient temperature was low, heater 500 can also play the effect of low-temperature heat.Directly the ventilation and heat scheme is compared with the heat exchanger scheme, can eliminate temperature gradient extra between rack inside and the environment, helps heat radiation; Compare with the air-conditioning scheme, the energy that cooling system consumes is minimum, cuts operating costs.Directly the ventilation and heat scheme can reduce noise of equipment, reduces the volume of equipment, makes equipment compact more, and the cost of cooling system reaches minimum.Yet, since directly the ventilation and heat scheme directly the air from external environment cool off, need take measures water, dust, low temperature and moisture are protected, could guarantee the equipment reliability service.
Because dust can enter rack along with flow air, accumulate on the equipment, cause faults such as equipment generation burn into short circuit.Existing design is to reduce dust by carrying out air filtration at air inlet layout Air Filter, and Air Filter is carried out cleaned at regular intervals or more bring preventing to stop up.Yet the hear rate of equipment is high more, and the required ventilation quantity of dispelling the heat is big more, and the probability that Air Filter stops up is also just high more, needs more frequent cleaning and maintenance, and is both time-consuming, again effort.
Because the working temperature of general device all more than-5～0 ℃, when rack is operated in the following time of low temperature environment that is lower than 0 ℃, need guarantee the air heat to 0 of access arrangement ℃ ability the steady operation of equipment.What have design now mainly is to utilize the heater assistant heating, consumes a large amount of electric energy, increases operation cost.
Moreover the moisture in the environment also can infiltrate rack from the positions such as crack between a door and its frame of air inlet and rack, can produce problems such as condensation and corrosion when the rack internal relative humidity is high.For example, reduction along with air themperature, the absolute humidity of saturated air reduces, mean that the absorbable vapour quantity of air reduces, unnecessary aqueous vapor will be freeze-outed, if the therefore relative humidity height of rack, when night since temperature reduce, can take place to produce the hidden danger of electric short circuit and corrosion on the cold wall of condensation vapor rack.In contrast, along with the increase of air themperature, the saturated humidity ratio value of saturated air increases, and this moment, relative humidity reduced.
For communication, electronic equipment, copper is the carrier that mainly transmits signal, the plant issue that corrosion causes mainly is a copper corrosion, and 60%RH is the critical corrosion relative humidity point of copper, and the relative humidity in the control rack is lower than the effectively corrosion of suppression equipment of 60%RH.Is the humid air heating method of the most simple and effective reduction relative humidity.In addition, reduce the method that relative humidity can also adopt refrigerated dehumidification, adsorption and dehumidification, but the implementation complexity of these schemes and cost all are far longer than the scheme of heating and dehumidification.Existing design mainly is that the mode by the heater assistant heating reduces relative humidity, needs to consume a large amount of electric energy, increases operation cost, can not adopt when having a power failure exchanging simultaneously.
In sum, mainly there is following shortcoming in existing rack temperature control scheme:
1, the equipment hear rate is high more, and required ventilation quantity is also big more, thereby sucks more dust from external environment.Even the employing Air Filter, the cleaning of Air Filter and maintenance are frequent, increase operation cost.
2, under low temperature environment in order to satisfy the equipment work temperature requirement, need to adopt the heater assistant heating, consumed power increases operation cost.
3, mainly be to increase the rack internal temperature by heater to reduce relative humidity, heater also needs to work always under the normal temperature high humidity environment, consumes a large amount of electric energy, increases operation cost;
4, when occurring exchanging power failure, when equipment relied on the backup battery powered operation, employing heater assistant heating had increased the power consumption of back-up source, had shortened the operating time of back-up source.Therefore when low temperature environment took place to exchange power failure, rack can't guarantee the temperature and humidity environment that rack is inner good.In the unsettled area of electrical network, this problem is particularly outstanding.
Summary of the invention
Technical problem to be solved by this invention is, a kind of machine-cabinet temperature controlling system, device and method are provided, and the temperature and humidity in the rack can be maintained within the equipment operate as normal allowed band, and have high cost performance.
For solving the problems of the technologies described above, the present invention has adopted following technical scheme: a kind of machine-cabinet temperature controlling system, comprise heat dissipation wind channel and have first air inlet and the backflow mixing air channel of first air outlet with air inlet and air outlet, first air inlet in described backflow mixing air channel and first air outlet are communicated with the air outlet and the air inlet of described heat dissipation wind channel respectively, be provided with radiating fan system in the described heat dissipation wind channel, described backflow mixing is provided with the circulating fan system in the air channel.
Preferably, be provided with the separation structure that described backflow mixing air channel is separated into first interval and second interval in the described backflow mixing air channel, described first air inlet and described first air outlet are separately positioned on described first interval and second interval, described separation structure is provided with the ventilating opening with the described first interval and second interval connection, and described ventilating opening is corresponding with described circulating fan system.
Preferably, described backflow mixing air channel also has second air inlet and second air outlet, described second air inlet and second air outlet are separately positioned on described second interval and first interval, and described second air inlet and the second air outlet place are provided with an environment fan system respectively.
Preferably, described second air inlet, second air outlet and described ventilating opening place are provided with air-flow shutoff or holdout device respectively.
Preferably, the second air inlet place in the air inlet of described heat dissipation wind channel and/or described backflow mixing air channel is provided with the dust filtration system.
Preferably, be provided with heater in heat dissipation wind channel and/or the described backflow mixing air channel.
A kind of machine cabinet temperature control apparatus, be used to cooperate the heat dissipation wind channel in the rack, temperature and humidity in the rack is maintained within the equipment operate as normal allowed band, it comprises housing and is arranged on the interior backflow mixing air channel of housing, described backflow mixing air channel has first air inlet and first air outlet, described first air inlet and first air outlet air outlet and the air inlet with described heat dissipation wind channel respectively are corresponding, and described backflow mixing is provided with the circulating fan system in the air channel.
Preferably, be provided with the separation structure that described backflow mixing air channel is separated into first interval and second interval in the described backflow mixing air channel, described first air inlet and described first air outlet are separately positioned on the sidewall in described first interval and second interval; Described separation structure is provided with the ventilating opening with the described first interval and second interval connection, and described ventilating opening is corresponding with described circulating fan system.
Preferably, described backflow mixing air channel also has second air inlet and second air outlet, and described second air inlet and second air outlet are separately positioned on described second interval and first interval; Described second air inlet and the second air outlet place are provided with an environment fan system respectively.
Preferably, described second air inlet, second air outlet and described ventilating opening place are provided with air-flow shutoff or holdout device respectively.
Preferably, the described second air inlet place is provided with the dust filtration system.
Preferably, be provided with heater in the described backflow mixing air channel.
A kind of rack temperature control method comprises the steps:
(1) obtains ambient temperature value T by temperature sensor
b, enter the air themperature value T of heat dissipation wind channel
aAnd the air themperature value T that discharges heat dissipation wind channel
c
(2) will obtain ambient temperature value T
b, enter the air themperature value T of heat dissipation wind channel
aWith the air themperature value T that discharges heat dissipation wind channel
cCarry out calculation process in the input processing unit, by processing unit output control signal, difference control heater, circulating fan system and environment fan system works are to maintain the temperature and humidity in the rack within the equipment operate as normal allowed band.
Preferably, step (2) comprises, works as T
b≤ T
B1, T
a≤ T
A1The time, control heater and circulating fan system open, environment fan system closing, the air heat temperature raising that circulates in rack.
Preferably, step (2) comprises, works as T
b≤ T
B1, T
a＞T
A2The time, control heater and environment fan system closing, the circulating fan system works, the heat that produces by equipment in the rack increases the temperature of air in the rack.
Preferably, step (2) comprises, works as T
b≤ T
B1, T
a＞T
A3The time, control heater is closed, and circulating fan system and environment fan system are opened, according to T
b, T
aAnd T
cValue, respectively Control Circulation fan system and environment fan system rotating speed are regulated hot-air that refluxes and the mixed proportion that enters the surrounding air in the rack, make T
aMaintain T
A4Temperature value.
Preferably, step (2) comprises, works as T
b＞T
B2The time, control heater and circulating fan system closing, the environment fan system is opened; According to the air themperature value T that enters heat dissipation wind channel
aWith the air themperature value T that discharges heat dissipation wind channel
c, the fan system rotating speed that controls environment, the ventilation quantity of regulating the surrounding air that enters rack makes the air themperature value T that discharges heat dissipation wind channel
cWith the air themperature value T that enters heat dissipation wind channel
aBetween keep a reasonable temperature difference T
1
Preferably, step (2) comprises, works as T
B2〉=T
b＞T
B1The time, control heater is closed, and circulating fan system and environment fan system are opened, according to ambient air temperature value T
b, enter the air themperature value T of heat dissipation wind channel
aWith the air themperature value T that discharges heat dissipation wind channel
c, respectively Control Circulation fan system and environment fan system rotating speed are regulated hot-air that refluxes and the mixed proportion that enters the surrounding air in the rack, make the air themperature T of access arrangement heat dissipation wind channel
aWith ambient air temperature value T
bBetween keep a reasonable temperature difference T
2
A kind of rack temperature control method comprises the steps:
(1) obtains ambient temperature value T by temperature sensor
b, enter the air themperature value T of heat dissipation wind channel
aWith the air themperature value T that discharges heat dissipation wind channel
c
(2) will obtain ambient temperature value T
b, enter the air themperature value T of heat dissipation wind channel
aWith the air themperature value T that discharges heat dissipation wind channel
cCarry out calculation process in the input processing unit, by described processing unit output control signal, difference Control Circulation fan system and environment fan system works are to maintain the temperature and humidity in the rack within the equipment operate as normal allowed band.
Preferably, step (2) comprises, works as T
b＞T
B2The time, control heater and circulating fan system closing, the environment fan system is opened; According to the air themperature value T that enters heat dissipation wind channel
aWith the air themperature value T that discharges heat dissipation wind channel
c, the fan system rotating speed that controls environment, the ventilation quantity of regulating the surrounding air that enters rack makes the air themperature value T that discharges heat dissipation wind channel
cWith the air themperature value T that enters heat dissipation wind channel
aBetween keep a reasonable temperature difference T
1
Preferably, step (2) comprises, works as T
b≤ T
B2The time, control heater is closed, and circulating fan system and environment fan system are opened; According to ambient air temperature value T
b, enter the air themperature value T of heat dissipation wind channel
aWith the air themperature value T that discharges heat dissipation wind channel
c, respectively Control Circulation fan system and environment fan system rotating speed are regulated hot-air that refluxes and the mixed proportion that enters the surrounding air in the rack, make the air themperature T of access arrangement heat dissipation wind channel
aWith ambient air temperature value T
bBetween keep a reasonable temperature difference T
2
Owing to adopted technique scheme, the present invention to have following advantage:
1, both had the good high-temperature heat dissipation characteristics, had the characteristic of heating under the good low temperature environment, insulation again.
2, utilize the hear rate of equipment itself to heat the air of external environment, reduce relative humidity, just can control relative humidity by the ventilation quantity of regulating hot and cold air, and not influence the heat dispersion of equipment.
3, control relative humidity does not need extra assistant heating means, has saved the energy.
4, flow through equipment air-flow some in the rack inner loop, reduced the air that environment enters rack, this has just reduced extraneous dust and has entered rack.
Description of drawings
Fig. 1 is the structural representation of existing rack;
Fig. 2 has the structural representation of the rack of machine-cabinet temperature controlling system in a preferred embodiment of the invention at air circulation time in rack;
Fig. 3 is the schematic diagram of rack shown in Figure 2 with cold and hot air mixed the time;
Fig. 4 is the schematic diagram of rack shown in Figure 2 when directly ventilating;
Fig. 5 is the theory diagram of the control unit of machine-cabinet temperature controlling system among the present invention;
Fig. 6 is the flow chart of the temperature control process of machine-cabinet temperature controlling system among the present invention;
Fig. 7 is the flow chart of the temperature control process of machine-cabinet temperature controlling system when not needing to consider that low temperature environment is used among the present invention;
Fig. 8 is the structural representation of machine cabinet temperature control apparatus in another embodiment of the present invention;
Fig. 9 is the user mode reference diagram of cabinet attemperating unit among Fig. 8.
Embodiment
Below in conjunction with drawings and the specific embodiments the present invention is described in further detail.
Fig. 2 to Fig. 4 shows the machine-cabinet temperature controlling system in a preferred embodiment of the invention; be used for the temperature and humidity of air in the rack is maintained in normal working temperature of equipment and the humidity range, equipment can be user's veneer interpolation frame of Access Network, base band veneer interpolation frame, Transceiver Module or the power module etc. of base station in the rack usually.As shown in Figure 2, be provided with a vertical partition plate 30 in the rack, the upper and lower end of vertical partition plate 30 is individually fixed on the top board and base plate of rack.Vertical partition plate 30 is separated into one with the inside of rack and is used for the heat dissipation wind channel 10 that dispels the heat to rack internal heat generation equipment and is communicated with the air outlet 14 of heat dissipation wind channel 10 with air inlet 15 backflow mixing air channel 20.In the present embodiment, heat dissipation wind channel 10 is to surround a cavity that forms by the Qianmen of rack, back door, top board, base plate, dividing plate 30 and left plate, is used for arranging groundwork equipment in it.Be provided with radiating fan system 13 in the heat dissipation wind channel 10, be used to drive cooling air and enter heat dissipation wind channel 10 from air inlet 15, take away after the heat of heat dissipation wind channel 10 interior all as above interpolation frames 11 and generation such as following interpolation frame 12 heat-producing devices such as grade, discharge from air outlet 14, so that the temperature maintenance of heat dissipation wind channel 10 interior air is within normal scope.Be understandable that radiating fan system 13 can comprise 1 or a plurality of fan, fan kind can be aerofoil fan, centrifugal fan or other kind fans etc.
The Qianmen, back door, top board, base plate, dividing plate 30 and the right plate that reflux to mix air channel 20 and be in the present embodiment by rack surround a cavity that forms, and more generally in it low-power consumption are installed and temperature, relative humidity are required lower equipment.Backflow mixes 20 upper and lower both sides, air channel and is provided with first air inlet and first air outlet that is communicated with the air outlet 14 and the air inlet 15 of heat dissipation wind channel 10 respectively, and then the air outlet 14 of heat dissipation wind channel 10 is communicated with air inlet 15, so that the hot-air that flows out from air outlet 14 can be back to the heat dissipation wind channel 10 by air inlet 15.First air inlet and first air outlet in backflow mixing air channel 20 are shared with the air outlet 14 and the air inlet 15 of heat dissipation wind channel 10 respectively.Certainly, as required, also can there be oneself independently first air inlet and one first air outlet in the mixing air channel 20 of refluxing, only need be communicated with air outlet 14 and air inlet 15 respectively with air pipe to get final product.
The middle part of reflux mixing air channel 20 is provided with a horizontal baffle 32, and the horizontal baffle 32 mixing air channel 20 of will refluxing is separated into upper and lower two intervals.Last interval is provided with above-mentioned first air inlet, also promptly goes up the interval and is communicated with the air outlet 14 of heat dissipation wind channel 10, is used for accommodating the hot-air of discharging from air outlet 14.Following interval is provided with above-mentioned first air outlet, and also promptly following interval is communicated with the air inlet 15 of heat dissipation wind channel 10.Offer one on the horizontal baffle 32 with upper and lower two interval ventilating openings 321 that are communicated with, be provided with a circulating fan system 23 near the ventilating opening 321, be used to drive interval hot-air and enter down the interval, and then be back in the heat dissipation wind channel 10 by air inlet 15 by ventilating opening 321.
Reflux to mix one second air inlet 26 and one second air outlet 27 that also are provided with on the air channel 20 respectively with external environment connect.Second air inlet 26 is arranged on to reflux and mixes the following interval in air channel 20, will descend interval and external environment connect; Also be provided with a first environment fan system 22 near second air inlet 26, so that the suction of external environment air is interval down.Second air outlet 27 is arranged on to reflux and mixes the interval of going up in air channel 20, will go up interval and external environment connect; Also be provided with a second environment fan system 21 near second air outlet 27, be discharged to external environment will enter into interval part or all of hot-air.First, second environment fan system 21,22 all comprises 1 or a plurality of fan, and fan kind can be aerofoil fan, centrifugal fan or other kind fans etc.
As shown in Figure 4, being provided with an air-flow near second air inlet 26, second air outlet 27 and the ventilating opening 321 turn-offs or holdout device, this air-flow turn-offs or holdout device can be opened when fan system is worked, when fan system stops, stoping whole or most of air-flows to circulate from ventilating opening.Air-flow turn-offs or holdout device can be simple venetian blinds, also can be electric control valve device etc.In the present embodiment, air-flow turn-offs or holdout device is a venetian blinds 24, and this shutter 24 can only unidirectionally be opened.When fan system was worked, venetian blinds 24 was subjected to open under the pressure-driven of the wind that fan blows out; When fan is not worked, venetian blinds 24 gravitates and closing.
Machine-cabinet temperature controlling system in the present embodiment also can be arranged heater 25 in the bottom of mixing air channel 20 of refluxing, to play the assistant heating effect in order to adapt to the needs of low temperature environment.Certainly, heater 25 also can be arranged in the heat dissipation wind channel 10, and also can at heat dissipation wind channel 10 and reflux to mix in the air channel 20 all be provided with heater 25.
Machine-cabinet temperature controlling system in the present embodiment can be provided with labyrinth structure (not shown) to realize the purpose of waterproof near second air inlet 26 and second air outlet 27, and at second air inlet 26 or/and air inlet 15 places arrange dust filtration systems such as Air Filter, to reach the dustproof purpose.In addition, it is pointed out that the fan system in the machine-cabinet temperature controlling system in the present embodiment is not limited to use common fan, it also can comprise other air driven device.
Machine-cabinet temperature controlling system in the present embodiment is provided with temperature sensor a for realizing Based Intelligent Control near the air inlet 15 of heat dissipation wind channel 10, enter the air themperature of heat dissipation wind channel 10 with detection; Be provided with temperature sensor c near the air outlet 14, to detect the temperature of the hot-air of discharging heat dissipation wind channel 10; Near second air inlet 26 that reflux to mix air channel 20, be provided with temperature sensor b, with the testing environment temperature.
Machine-cabinet temperature controlling system in the present embodiment can be achieved as follows three kinds of operating states:
(1) when the circulating fan system works, when the environment fan system is not worked (shown in arrow among Fig. 2), air mixes air channel 20 in the rack inner loop by heat dissipation wind channel 10 and backflow, does not have air exchange with external environment, perhaps can only a spot of air exchange be arranged by the slit.This operating state is used for utilizing under the low temperature environment hear rate of equipment own or auxiliary heater 25 to realize the self-loopa heating of rack inside; Also can be used for utilizing under the normal temperature environment the inner temperature of hear rate circulation heating rack of equipment itself, thereby reduce relative humidity.
(2) when circulating fan system and environment fan system are all worked simultaneously (shown in arrow among Fig. 3), after portion of hot air of discharging from heat dissipation wind channel 10 and external environment cold air mix according to a certain percentage, turn back to heat dissipation wind channel 10 again and give the equipment ventilation and heat.This operating state can utilize the caloric value of equipment self to regulate to enter air themperature and the relative humidity in the heat dissipation wind channel 10.The mixed proportion of rack internal heat air and external environment cold air and ventilation quantity determined by the temperature controlling schemes, make the air that enters heat dissipation wind channel 10 can both satisfied temperature, humidity control requirement.
(3) do not work when the circulating fan system, during environment fan system works (shown in arrow among Fig. 4), surrounding air flows directly into gives equipment cooling in the rack, and this operating state is used for realizing equipment cooling under the hot environment.
Fig. 5 shows the functional-block diagram of the control unit of the machine-cabinet temperature controlling system in the present embodiment, as shown in the figure, processing unit is the core of this control system, it has four input ports and four output ports, four input port difference jointing temp transducer a, b, c and control panels, four output ports connect circulating fan system, first environment fan system, second environment fan system and heater respectively.Control panel is used for carrying out the setting of parameter according to user's needs or rack application scenario, generally comprises: environment critical temperature parameter value T
B(T
B1And T
B2), enter the critical temperature parameter value T of the air of heat dissipation wind channel
A(L
A1, T
A2, T
A3And T
A4) and temperature difference parameters value Δ T (Δ T
1With Δ T
2) setting.In concrete control procedure, in processing unit, import suitable parameter by control panel after, temperature sensor a, b, c general be detected temperature value T separately
a, T
bAnd T
cBe sent to processing unit, by the processing unit calculation process, the output control signal, Control Circulation fan system, first environment fan system, second environment fan system and heater work respectively is with the purpose of air themperature and humidity in the realization control rack.Be understandable that these parameters also can be pre-set when rack dispatches from the factory, and be stored in, and need not be provided with by user oneself.
Fig. 6 shows the control flow chart of the machine-cabinet temperature controlling system in the present embodiment, and it mainly comprises the steps:
Step 101: detect the testing environment temperature T
b, enter the air themperature T of heat dissipation wind channel
aAnd the air themperature T that discharges heat dissipation wind channel
cIn the present embodiment, T
b, T
aAnd T
cDetect by temperature sensor b, a and c respectively.
Step 102: judge ambient temperature value T
bWhether greater than critical environment temperature parameter T
B1, if not, then enter step 103; If then enter step 109.
Step 103: judge the air themperature T that enters heat dissipation wind channel
aWhether greater than critical temperature parameter T
A1, if not, then enter step 104, if then enter step 105.
Step 104: heater and circulating fan system all open, environment fan system closing, the air heat temperature raising that circulates in rack.In this step, heater is opened, and with air in the assistant heating rack, improves the air themperature rate of climb; The circulating fan system opens, and to drive the hot air reflow that heat dissipation wind channel is discharged, utilizes the heat heated air that equipment self produces in the rack; Environment fan system closing makes to prevent that ambient, cool air from entering.
Step 105: judge T
aWhether greater than T
A2If,, then enter step 106; If not, then return step 101.
Step 106: heater cuts out, and circulating fan is opened, and the environment fan cuts out, and enters step 107.In this step, the heat that equipment self sends in the rack can satisfy the demand of atmosphere temperature rising, thereby closes heater, stops assistant heating, to save power supply.
Judge 107: judge T
aWhether greater than T
A3If,, then enter step 108; If not, then return step 101.
Step 108: heater cuts out, and circulating fan system and environment fan system are all opened, according to ambient air temperature value T
b, enter the air themperature value T of heat dissipation wind channel
aWith the air themperature T that discharges heat dissipation wind channel
cValue, respectively Control Circulation fan system and environment fan system rotating speed are regulated hot-air that refluxes and the mixed proportion that enters the surrounding air in the rack, make T
aMaintain T
A4Temperature value.For example, work as T
aGreater than T
A4The time, the rotating speed of reduction circulating fan system, the rotating speed of raising environment fan system enters the amount of ambient, cool air to reduce the amount of reflux heat air, to increase, and works as T
aLess than T
A4The time, then just opposite.
Step 109: judge T
bWhether greater than T
B2If,, then enter step 110, if not, then enter step 111;
Step 110: heater and circulating fan system all close, and the environment fan system is opened, according to the air themperature value T that enters heat dissipation wind channel
aWith the air themperature value T that discharges heat dissipation wind channel
c, the fan system rotating speed that controls environment is regulated the amount that surrounding air enters rack, makes T
cWith T
aBetween keep a reasonable temperature difference T
1Even, T
cApproximate T
a+ Δ T
1For example, as temperature difference T
1When excessive, improve the environment rotation speed of the fan, the ventilation quantity that increases surrounding air is given equipment cooling in the rack; Temperature difference T
1When too small, reduce the environment rotation speed of the fan, reduce the surrounding air that enters in the rack, and reduce the power consumption of environment fan.
Step 111: heater cuts out, and circulating fan system and environment fan system are all opened, according to ambient air temperature value T
b, enter the air themperature value T of heat dissipation wind channel
aWith the air themperature value T that discharges heat dissipation wind channel
c, Control Circulation fan system and environment fan system rotating speed are regulated hot-air that refluxes and the mixed proportion that enters the surrounding air in the rack respectively, make the air themperature T of access arrangement heat dissipation wind channel
aWith ambient air temperature value T
bBetween keep a reasonable temperature difference T
2, i.e. T
a=T
b+ Δ T
2
Below with communication, electronic equipment is example, the implication of each parameter in the machine-cabinet temperature controlling system in the present embodiment is described below:
When communicating by letter, when electronic equipment is installed to outdoor cabinet, need the air themperature in the outdoor cabinet being maintained-5 ℃～more than 0 ℃, could guarantee rack internal unit reliably working.And for communication, electronic equipment, copper is the carrier that mainly transmits signal, the plant issue that corrosion causes mainly is a copper corrosion, and 60%RH is the critical corrosion relative humidity point of copper, and the relative humidity in the control rack is lower than the effectively corrosion of suppression equipment of 60%RH.Rack internal relative humidity value is very big to the equipment corrosion influence, and control relative humidity can prevent the suppression equipment corrosion when being lower than 60%RH, and prevents the inner condensation of rack.And when ambient temperature is lower than 0 ℃ of left and right sides, do not need to consider the problem of relative humidity control, only need the operating temperature range that it is suitable that the temperature of rack inside is controlled at equipment be got final product.And when ambient temperature greater than 0 ℃ and during less than 40 ℃, relative air humidity surpasses the probability height of 60%RH, air is suitably heated can reduce relative humidity this moment, guarantees that it is lower than 60%RH.When ambient temperature surpassed 40 ℃, relative air humidity was extremely low above 60% probability, there is no need heated air, only needed the ventilation and heat of consideration equipment under hot environment this moment.
In the machine-cabinet temperature controlling system in the present embodiment, border critical temperature parameter T
B1Be meant the ceiling temperature point when under low temperature environment air humidity is lower than the critical corrosion relative humidity point of equipment, that is when ambient temperature less than T
B1The time, air humidity only needs not control and do not need to carry out humidity carrying out temperature control in the rack less than the critical corrosion relative humidity point of equipment this moment.T
B1Preferred span be-5～0 ℃.
In the machine-cabinet temperature controlling system in the present embodiment, environment critical temperature parameter T
B2Be meant the lower limit temperature point when under hot environment air humidity is lower than the critical corrosion relative humidity point of equipment, that is when ambient temperature greater than T
B2The time, air humidity also only needs not control and do not need to carry out humidity carrying out temperature control in the rack less than the critical corrosion relative humidity point of equipment this moment.T
B2Preferred span be 38～45 ℃.
In the machine-cabinet temperature controlling system in the present embodiment, enter the critical temperature parameter T of the air of heat dissipation wind channel
A1: be meant under low temperature environment, the temperature spot when heat dissipation wind channel need heat by auxiliary heater, that is work as temperature less than T
A1The time, need to open auxiliary heater and promote the interior temperature of rack.T
A1Preferred span be-10 ℃～-5 ℃.
In the machine-cabinet temperature controlling system in the present embodiment, enter the critical temperature parameter T of the air of heat dissipation wind channel
A2: be meant the critical temperature point of closing auxiliary heater, that is work as the interior temperature of rack greater than T
A2, no longer needing the auxiliary heater heating, the heat that only needs to distribute by equipment in the rack heats, and temperature maintenance in the rack is got final product within the normal temperature range of equipment.
A2Preferred span be 5～10 ℃.
In the machine-cabinet temperature controlling system in the present embodiment, enter the critical temperature parameter T of the air of heat dissipation wind channel
A3Be meant that rack need be discharged to the portion of hot air in the environment, and from environment, be drawn into the part cold air, critical temperature point when preventing that temperature is too high in the rack.
A3Preferred span be 30～35 ℃.
In the machine-cabinet temperature controlling system in the present embodiment, enter the critical temperature parameter T of the air of heat dissipation wind channel
A4Be meant that working as the air themperature that enters heat dissipation wind channel reaches T
A3The critical temperature point that the back expectation drops to.
4Preferred span be 20～25 ℃.
In the machine-cabinet temperature controlling system in the present embodiment, temperature difference parameters Δ T
1Be meant and work as ambient temperature greater than T
A1, and less than T
A2The time, the temperature difference that the temperature of the air that heat dissipation wind channel is discharged and the temperature that enters the air of heat dissipation wind channel need be kept is so that make air humidity in the rack be lower than the critical corrosion relative humidity point of equipment.Δ T
1Preferred span be 8～15 ℃.
In the machine-cabinet temperature controlling system in the present embodiment, temperature difference parameters Δ T
2Be meant and work as ambient temperature greater than T
A2The time, the temperature difference that the temperature of the air that heat dissipation wind channel is discharged and the temperature that enters the air of heat dissipation wind channel need be kept is so that can distribute the heat that rack internal heat generation equipment produces preferably.Δ T
2Preferred span be 10～15 ℃ or 20～25 ℃.Certainly, Δ T
2Might not be a definite value in adjustment process, can be one and T
aThe changing value that is associated.
Need to prove that according to the difference of equipment in the rack, for example, the carrier that transmits signal is a material beyond the copper, then according to the character of this material, above-mentioned parameter need be done corresponding adjustment.
Fig. 7 shows the control flow of rack when not needing to consider that low temperature environment is used among the present invention, and it has lacked many steps than flow process shown in Figure 6, and as shown in the figure, it comprises the steps:
Step 201: detect the testing environment temperature T
b, enter the air themperature T of heat dissipation wind channel
aAnd the air themperature T that discharges heat dissipation wind channel
cIn the present embodiment, T
b, T
aAnd T
cDetect by temperature sensor b, a and c respectively.
Step 202: judge T
bWhether greater than T
B2, if not, then enter step 204, if then enter step 203;
Step 203: heater and circulating fan system all close, and the environment fan system is opened, according to the air themperature value T that enters heat dissipation wind channel
aWith the air themperature value T that discharges heat dissipation wind channel
c, the fan system rotating speed that controls environment is regulated the amount that surrounding air enters rack, makes T
cWith T
aBetween keep a reasonable temperature difference T
1Even, T
cApproximate T
a+ Δ T
1For example, as temperature difference T
1When excessive, improve the environment rotation speed of the fan, the ventilation quantity that increases surrounding air is given equipment cooling in the rack; Temperature difference T
1When too small, reduce the environment rotation speed of the fan, reduce the surrounding air that enters in the rack, and reduce the power consumption of environment fan.
Step 204: heater cuts out, and circulating fan system and environment fan system are all opened, according to ambient air temperature value T
b, enter the air themperature value T of heat dissipation wind channel
aWith the air themperature value T that discharges heat dissipation wind channel
c, Control Circulation fan system and environment fan system rotating speed are regulated hot-air that refluxes and the mixed proportion that enters the surrounding air in the rack respectively, make the air themperature of access arrangement heat dissipation wind channel maintain T
a=T
b+ Δ T
2
It may be noted that to be, the present invention except being applied to outdoor cabinet, the indoor type rack that also can be applied to more generally use.A lot of rack equipment are installed in the simple and easy building environment, and these simple and easy building environments lack temperature, dust and humidity control, and the equipment that makes faces the puzzlement of temperature and environmental corrosion.Adopt the present invention can also solve the problem of the temperature and humidity protection of these equipment.
The present invention adopts unique air channel design and temperature, humidity controlling schemes, the air themperature and the humidity of reliable control appliance inside.The hear rate that makes full use of equipment itself under low temperature environment carries out adopting the assistant heating means in case of necessity from heating, realizes the inner evenly heating of rack.Under hot environment, directly utilize the external environment air to dispel the heat, eliminated the extra temperature difference, reach best radiating effect.Under normal temperature environment, do not need to adopt extra heater, undertaken reducing the rack internal relative humidity, suppress corrosion from heating by the hear rate of equipment itself, energy savings, and can guarantee the secure heat dissipation of equipment.Can reduce the ventilation quantity between rack and the environment, enter rack thereby reduce dust.In addition, the present invention compares with temperature control equipment such as air-conditioning and heat exchangers, can reduce the volume of rack, and reduces noise, and has the advantage on the cost.
Fig. 8 and Fig. 9 show the temperature control device in another embodiment of the present invention, and this temperature control device is installed on the rack, cooperate the purpose that realizes temperature control with heat dissipation wind channel in the rack.The similar in the structure of this temperature control device and the backflow mixing air channel 20 of a last embodiment, it comprises separate upward interval 41 and following interval 42, last interval 41 are provided with first air inlet 410 and second air outlet 411, and following interval 42 are provided with first air outlet 420 and air inlet 421.Be provided with environment fan system 43 near air inlet 421 and the air outlet 411, air outlet 411 will be gone up interval 41 and external environment connect, and air inlet 421 will descend interval 42 and external environment connect.Be provided with ventilation hole 46 between last interval 41 and down interval 42, be provided with circulating fan system 44 near the ventilation hole 46.This temperature control setting also can comprise heater 45 and control unit (not shown) etc.
In the course of work, the air outlet of the heat dissipation wind channel 10 in air inlet 410 and the rack is connected, and the air inlet of the heat dissipation wind channel 10 in air outlet 420 and the rack is connected, and all can directly link to each other, also can be continuous indirectly by conduit.A temperature control process and a last embodiment are similar, do not repeat them here.Be installed on the rack and use because this independent temperature equipment can become a standard module as heat exchanger and air-conditioning, make present embodiment application more flexibly and convenient.
Claims (21)
1. machine-cabinet temperature controlling system, comprise heat dissipation wind channel with air inlet and air outlet, be provided with radiating fan system in the described heat dissipation wind channel, it is characterized in that, also comprise backflow mixing air channel with first air inlet and first air outlet, first air inlet in described backflow mixing air channel and first air outlet are communicated with the air outlet and the air inlet of described heat dissipation wind channel respectively, and described backflow mixing is provided with the circulating fan system in the air channel.
2. machine-cabinet temperature controlling system according to claim 1, it is characterized in that, be provided with the separation structure that described backflow mixing air channel is separated into first interval and second interval in the described backflow mixing air channel, described first air inlet and described first air outlet are separately positioned on the sidewall in described first interval and second interval; Described separation structure is provided with the ventilating opening with the described first interval and second interval connection, and described ventilating opening is corresponding with described circulating fan system.
3. machine-cabinet temperature controlling system according to claim 2, it is characterized in that, described backflow mixing air channel also has second air inlet and second air outlet, described second air inlet and second air outlet are separately positioned on described second interval and first interval, and described second air inlet and the second air outlet place are provided with an environment fan system respectively.
4. machine-cabinet temperature controlling system according to claim 3 is characterized in that, described second air inlet, second air outlet and described ventilating opening place are provided with an air-flow respectively and turn-off or holdout device.
5. machine-cabinet temperature controlling system according to claim 3 is characterized in that, the second air inlet place in the air inlet of described heat dissipation wind channel and/or described backflow mixing air channel is provided with the dust filtration system.
6. machine-cabinet temperature controlling system according to claim 1 is characterized in that, is provided with heater in described heat dissipation wind channel and/or the described backflow mixing air channel.
7. machine cabinet temperature control apparatus, be used to cooperate the heat dissipation wind channel in the rack, temperature and humidity in the rack is maintained within the equipment operate as normal allowed band, it is characterized in that, comprise housing and be formed at the interior backflow mixing air channel of housing, described backflow mixing air channel has first air inlet and first air outlet, and described first air inlet and first air outlet air outlet and the air inlet with described heat dissipation wind channel respectively are corresponding, and described backflow mixing is provided with the circulating fan system in the air channel.
8. machine cabinet temperature control apparatus according to claim 7, it is characterized in that, be provided with the separation structure that described backflow mixing air channel is separated into first interval and second interval in the described backflow mixing air channel, described first air inlet and described first air outlet are separately positioned on described first interval and second interval; Described separation structure is provided with the ventilating opening with the described first interval and second interval connection, and described ventilating opening is corresponding with described circulating fan system.
9. machine cabinet temperature control apparatus according to claim 8 is characterized in that, described backflow mixing air channel also has second air inlet and second air outlet, and described second air inlet and second air outlet are separately positioned on described second interval and first interval; Described second air inlet and the second air outlet place are provided with an environment fan system respectively.
10. machine cabinet temperature control apparatus according to claim 9 is characterized in that, described second air inlet, second air outlet and described ventilating opening place are provided with an air-flow respectively and turn-off or holdout device.
11., it is characterized in that the described second air inlet place is provided with the dust filtration system according to claim 9 or 10 described machine-cabinet temperature controlling systems.
12. machine cabinet temperature control apparatus according to claim 7 is characterized in that, described backflow mixing is provided with heater in the air channel.
13. a rack temperature control method is characterized in that, comprises the steps:
(1) obtains ambient temperature value T by temperature sensor
b, enter the air themperature value T of heat dissipation wind channel
aAnd the air themperature value T that discharges heat dissipation wind channel
c
(2) will obtain ambient temperature value T
b, enter the air themperature value T of heat dissipation wind channel
aWith the air themperature value T that discharges heat dissipation wind channel
cCarry out calculation process in the input processing unit, by processing unit output control signal, difference control heater, circulating fan system and environment fan system works are to maintain the temperature and humidity in the rack within the equipment operate as normal allowed band.
14. rack temperature control method according to claim 13 is characterized in that step (2) comprises, works as T
b≤ T
B1, T
a≤ T
A1The time, control heater and circulating fan system open, environment fan system closing.
15. rack temperature control method according to claim 13 is characterized in that step (2) comprises, works as T
b≤ T
B1, T
a＞T
A2The time, control heater and environment fan system closing, the circulating fan system opens.
16. rack temperature control method according to claim 13 is characterized in that step (2) comprises, works as T
b≤ T
B1, T
a＞T
A3The time, control heater is closed, and circulating fan system and environment fan system are opened, according to T
b, T
aAnd T
cValue, respectively Control Circulation fan system and environment fan system rotating speed are regulated hot-air that refluxes and the mixed proportion that enters the surrounding air in the rack, make T
aMaintain T
A4Temperature value.
17. rack temperature control method according to claim 13 is characterized in that step (2) comprises, works as T
b＞T
B2The time, control heater and circulating fan system closing, the environment fan system is opened; According to the air themperature value T that enters heat dissipation wind channel
aWith the air themperature value T that discharges heat dissipation wind channel
c, the fan system rotating speed that controls environment, the ventilation quantity of regulating the surrounding air that enters rack makes the air themperature value T that discharges heat dissipation wind channel
cWith the air themperature value T that enters heat dissipation wind channel
aBetween keep a temperature difference T
1
18. rack temperature control method according to claim 13 is characterized in that step (2) comprises, works as T
B2〉=T
b＞T
B1The time, control heater is closed, and circulating fan system and environment fan system are opened, according to ambient air temperature value T
b, enter the air themperature value T of heat dissipation wind channel
aWith the air themperature value T that discharges heat dissipation wind channel
c, respectively Control Circulation fan system and environment fan system rotating speed are regulated hot-air that refluxes and the mixed proportion that enters the surrounding air in the rack, make the air themperature T of access arrangement heat dissipation wind channel
aWith ambient air temperature value T
bBetween keep a temperature difference T
2
19. a rack temperature control method is characterized in that, comprises the steps:
(1) obtains ambient temperature value T by temperature sensor
b, enter the air themperature value T of heat dissipation wind channel
aWith the air themperature value T that discharges heat dissipation wind channel
c
(2) will obtain ambient temperature value T
b, enter the air themperature value T of heat dissipation wind channel
aWith the air themperature value T that discharges heat dissipation wind channel
cCarry out calculation process in the input processing unit, by described processing unit output control signal, difference Control Circulation fan system and environment fan system works are to maintain the temperature and humidity in the rack within the equipment operate as normal allowed band.
20. rack temperature control method according to claim 19 is characterized in that step (2) comprises, works as T
b＞T
B2The time, control heater and circulating fan system closing, the environment fan system is opened; According to the air themperature value T that enters heat dissipation wind channel
aWith the air themperature value T that discharges heat dissipation wind channel
c, the fan system rotating speed that controls environment, the ventilation quantity of regulating the surrounding air that enters rack makes the air themperature value T that discharges heat dissipation wind channel
cWith the air themperature value T that enters heat dissipation wind channel
aBetween keep a temperature difference T
1
21. rack temperature control method according to claim 19 is characterized in that step (2) comprises, works as T
b≤ T
B2The time, control heater is closed, and circulating fan system and environment fan system are opened; According to ambient air temperature value T
b, enter the air themperature value T of heat dissipation wind channel
aWith the air themperature value T that discharges heat dissipation wind channel
c, respectively Control Circulation fan system and environment fan system rotating speed are regulated hot-air that refluxes and the mixed proportion that enters the surrounding air in the rack, make the air themperature T of access arrangement heat dissipation wind channel
aWith ambient air temperature value T
bBetween keep a temperature difference T
2
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610033988 CN1852648A (en) | 2006-02-24 | 2006-02-24 | Machine-cabinet temperature controlling system, device and method |
| CNB2006101501972A CN100563412C (en) | 2006-02-24 | 2006-10-30 | Machine cabinet temperature control apparatus, processing unit, system and method |
| DE602007007061T DE602007007061D1 (en) | 2006-02-24 | 2007-02-13 | TEMPERATURE CONTROL DEVICE AND ADMINISTRATIVE DEVICE, SYSTEM AND METHOD THEREFOR |
| PCT/CN2007/000507 WO2007095846A1 (en) | 2006-02-24 | 2007-02-13 | Temperature control device, management device, system and method |
| AT07710932T ATE471067T1 (en) | 2006-02-24 | 2007-02-13 | TEMPERATURE CONTROL DEVICE AND MANAGEMENT DEVICE, SYSTEM AND METHOD THEREOF |
| EP07710932A EP1988760B1 (en) | 2006-02-24 | 2007-02-13 | Temperature control device, management device, system and method |
| CN200780000219XA CN101313640B (en) | 2006-02-24 | 2007-02-13 | Machine cabinet temperature control apparatus and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610033988 CN1852648A (en) | 2006-02-24 | 2006-02-24 | Machine-cabinet temperature controlling system, device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1852648A true CN1852648A (en) | 2006-10-25 |
Family
ID=37134109
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610033988 Pending CN1852648A (en) | 2006-02-24 | 2006-02-24 | Machine-cabinet temperature controlling system, device and method |
| CN200780000219XA Expired - Fee Related CN101313640B (en) | 2006-02-24 | 2007-02-13 | Machine cabinet temperature control apparatus and system |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200780000219XA Expired - Fee Related CN101313640B (en) | 2006-02-24 | 2007-02-13 | Machine cabinet temperature control apparatus and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN1852648A (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN101313640B (en) | 2011-04-20 |
| CN101313640A (en) | 2008-11-26 |
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