CN205196226U - A prevent condensation device for taking cooling fan rack - Google Patents
A prevent condensation device for taking cooling fan rack Download PDFInfo
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- CN205196226U CN205196226U CN201521073703.3U CN201521073703U CN205196226U CN 205196226 U CN205196226 U CN 205196226U CN 201521073703 U CN201521073703 U CN 201521073703U CN 205196226 U CN205196226 U CN 205196226U
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- rack
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- cabinet
- cooling fan
- temperature transducer
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Abstract
The utility model provides a prevent condensation device for taking cooling fan rack, set up the air intake on the front panel of the cabinet body, configuration air inlet temperature sensor and air inlet humidity transducer on the air intake, two sensors are passing signal circuit connection control unit respectively, dispose cooling fan on the rack postnotum, the internal configuration of cabinet installation frame, it is internal at the rack cabinet, temperature sensor in the configuration cabinet between installation frame entry end and the front panel, temperature sensor passing signal circuit connection control unit in the cabinet, tuber pipe air inlet end stretches into in cooling fan's the discharge wind channel, configuration electric control valve is served in the air -out of tuber pipe, the air outlet and the rack cabinet body inner space intercommunication of air -out end, the control unit passes through control scheme and connects electric control valve. This device utilizes the hot -blast cold air to the rack air intake of cooling fan exhaust to heat, improves the inside gas flow temperature of rack to reaching the purpose of preventing the condensation, need not additionally configuration electric heater unit or liquefying plant cooling in the rack, energy -conserving effect is obvious.
Description
Technical field
The utility model relates to defrosting condensation-proof field, particularly relates to the condensation-preventing device of band cooling fan rack.
Background technology
Rack is a kind of conventional equipment in electric power system, as switch cubicle, control cubicle etc.When being in the larger environment of high humility, variations in temperature, in rack, dew condensation phenomenon can be there is.The generation of condensation can cause a series of problems such as the reduction of circuit etch, insulation of electrical installation, components and parts short circuit, and serious may cause device failure, unit trip, and then causes adverse effect to the fail safe of operation of power networks, reliability.Therefore prevent the condensation in rack to ensureing that the normal operation of electrical network is very important.
Existing dewing-proof method can be divided into two classes by principle:
1, heating and dehumidification is anti-condensation, and mainly by arranging that in rack in heater heating cabinet, air reaches anti-condensation object, this method uses comparatively wide, but heater power consumption is serious.
2, dewatering type is except wet method, and the main dehumidification by condensation device that uses manufactures a low temperature face in rack, the steam in air is condensed on low temperature face, then is discharged by project organization.This method practicality, not as method 1, thus use less, and the method consumes energy seriously equally.
In sum, how designing a kind of not only energy-conservation but also rack condensation-preventing device that practicality is good, is the problem that this area needs to continue to probe into.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of condensation-preventing device with cooling fan rack, the cold air of the hot blast that this device utilizes cooling fan to discharge to rack air inlet heats, realize the anti-condensation controlling functions to rack, not only consume energy low, and structure is simple, practicality is better.
The utility model is achieved through the following technical solutions:
For the condensation-preventing device with cooling fan rack, the front panel of described rack cabinet offers air inlet, postnotum configures cooling fan, configuration installation frame in cabinet, is characterized in that:
The air inlet of described rack configures inlet temperature transducer and air intake humidity sensor, inlet temperature transducer and air intake humidity sensor respectively by signal line connection control unit,
In rack cabinet, configure at least one in-cabinet temperature transducer between installation frame arrival end and front panel, in-cabinet temperature transducer passes through signal line connection control unit,
Airduct air intake stretches in the discharge air channel of cooling fan, and the air port of getting of air intake is positioned at discharge center, air channel, and just to the air-out direction of discharging air channel, the outlet air end of airduct configures motor-operated control valve, and the air outlet of outlet air end is communicated with rack cabinet inner space,
Control unit connects motor-operated control valve by control circuit.
This device is reintroduced back in rack by the hot blast of being discharged by cooling fan, improves the air themperature in rack, is controlled on dew point by in-cabinet temperature, thus play the generation preventing dew condensation phenomenon.The control unit of this device receives the signal of each transducer in the following manner, and controls the keying of motor-operated control valve:
First, control unit receives the signal of inlet temperature transducer and air intake humidity sensor, obtain the temperature and humidity of now air intake air-flow, according to the basic database of different dew point temperatures corresponding to the different humitures of control unit storage inside, judge the dew point temperature T that this humiture is corresponding
conden.
Meanwhile, control unit receives the signal that in-cabinet temperature transducer transmits in real time, obtain installation frame inlet location real-time temperature T, or when in-cabinet temperature transducer has n, the installation frame inlet location real-time temperature now obtained is T
1, T
2, T
3t
n.
Then, control unit is by T or T
1, T
2, T
3t
nwith T
condencompare:
(1) if T is less than or equal to T
conden, or, T
1, T
2, T
3t
nbetween be arbitraryly less than or equal to T
conden, control unit sends control signal, increases the open amount of motor-operated control valve, strengthening hot air flow in airduct, mixing by introducing more hot blast with the air-flow of installation frame inlet location, improves inlet temperature, prevents air intake condensation in cabinet;
(2) if T is greater than T
conden, or T
1, T
2, T
3t
nall be greater than T
condentime, now control unit sends control signal, keeps the current opening amount of motor-operated control valve constant.
In addition, in order to ensure heat radiation, also a upper limit threshold T need be set in advance in control unit
max, when control unit detects that T is greater than T
max, or, T
1, T
2, T
3t
nbetween be arbitraryly greater than T
maxtime, control unit sends signal, reduces the open amount of motor-operated control valve, reduces hot air flow in airduct, to reduce installation frame inlet location temperature, ensures the abundant heat radiation in cabinet.
Further, in order to obtain the temperature of the installation frame arrival end diverse location of rack, described in-cabinet temperature number of sensors is three, be configured in the position, upper, middle and lower of rack cabinet respectively, correspond to the first in-cabinet temperature transducer, the second in-cabinet temperature transducer and the 3rd in-cabinet temperature transducer.The temperature of the installation frame arrival end diverse location of three in-cabinet temperature Sensor monitoring racks, can be more accurate to the control of large-scale rack in-cabinet temperature.
Further again, the air outlet of described airduct outlet air end is communicated with rack cabinet inner space from rack side cabinet bottom, near front panel.The hot blast that cooling fan is discharged directly is introduced installation frame arrival end place, and mixes with air intake there, can guarantee that inlet temperature is higher than the dew point under this humiture, avoid air intake in the condensation of installation frame arrival end; In addition, the air outlet of airduct outlet air end is communicated with rack from rack side cabinet bottom, is consider that the hot blast of introducing is in upward status, just in time mixes in crossing with the cold wind in decline state, improves heating effect further.
Further again, described airduct connects motor-operated control valve by adpting flange air-tightness.To prevent airduct and motor-operated control valve junction from leaking out, affect the backflow efficiency of hot blast.
Further again, described inlet temperature transducer, air intake humidity sensor, in-cabinet temperature transducer and motor-operated control valve are respectively by wired mode or wireless mode connection control unit, not only connected mode is more flexible, and is convenient to the layout between each element, ensures the sealing of rack.
The beneficial effects of the utility model are:
1, the cold air of hot blast to rack air inlet that this device utilizes cooling fan to discharge heats, improve interior of equipment cabinet gas flow temperature, thus reach anti-condensation object, without the need to additionally configuring electric heater unit or liquefying plant cooling in rack, energy-saving effect is obvious;
2, this device is by multiple temperature controlled Real-Time Monitoring, interior of equipment cabinet temperature accurately effectively can be controlled in a temperature range, can ensure that the heat radiation of rack is abundant, effectively can prevent again the air setting in rack;
3, the structure of this device is simple, and practicality is high, is easy to, to the reducing energy consumption of existing product, be beneficial to popularization.
Accompanying drawing explanation
Fig. 1 is that perspective structure schematic diagram is looked on the right side of a kind of preferred version of this device
Fig. 2 be get in Fig. 1 air port and discharge air channel cooperation position face cut-away illustration
In Fig. 1 ~ 2: 1 is rack, 2 is cooling fan, and 3 for discharging air channel, 4 for getting air port, 5 is airduct, and 6 is motor-operated control valve, and 7 is inlet temperature transducer, 8 is air intake humidity sensor, 9 is the first in-cabinet temperature transducer, and 10 is the second in-cabinet temperature transducer, and 11 is the 3rd in-cabinet temperature transducer, 12 is control unit, and 13 is air inlet.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the front panel of rack 1 cabinet offers air inlet 13, air inlet 13 configures inlet temperature transducer 7 and air intake humidity sensor 8, inlet temperature transducer 7 and air intake humidity sensor 8 respectively by signal line connection control unit 12, for monitoring the air epidemic disaster at air inlet 13 place.
The postnotum of rack 1 cabinet configures cooling fan 2, configuration installation frame in cabinet, 3 in-cabinet temperature transducers are configured with between installation frame arrival end and front panel, be configured in the position, 3, upper, middle and lower of cabinet respectively, correspond to the first in-cabinet temperature transducer 9, second in-cabinet temperature transducer 10 and the 3rd in-cabinet temperature transducer 11.3 in-cabinet temperature transducers respectively by signal line connection control unit 12, for monitoring the air themperature of installation frame porch.The direction of arrow in figure is inlet and outlet direction.
Airduct 5 air intake stretches in the discharge air channel 3 of cooling fan 2, and the air port 4 of getting of air intake is positioned at discharge center, air channel 3, just to the air-out direction of discharging air channel 3, as shown in Figure 2.The outlet air end of airduct 5 is configured with a motor-operated control valve 6 by adpting flange air-tightness, and the air outlet of outlet air end is communicated with rack 1 cabinet inner space from rack 1 side cabinet bottom, near front panel.Control unit 12 connects motor-operated control valve 6 by control circuit.
Inlet temperature transducer 7, air intake humidity sensor 8, in-cabinet temperature transducer and motor-operated control valve 6 are signal line or control circuit respectively by the connection dotted line between element each in wired mode connection control unit 12, Fig. 1.
Control unit 12 comprises the data storage of the basic database for the corresponding different dew point temperature of the different humiture that prestores, for the treatment of the treatment circuit of the temperature signal that inlet temperature transducer 7, air intake humidity sensor 8, first in-cabinet temperature transducer 9, second in-cabinet temperature transducer 10 and the 3rd in-cabinet temperature transducer 11 transmit, for the treatment of the treatment circuit of the moisture signal that air intake humidity sensor 8 transmits, and by above-mentioned, the signal that temperature and relative humidity imports into is processed, and export central processing unit and the signal conversion output module of control signal.Have in cabinet that special power supply is each temperature sensor, humidity sensor, control unit 12 and motor-operated control valve 6 are powered.
This device, by being reintroduced back in rack 1 by the hot blast that cooling fan 2 is discharged, improving the air themperature in rack 1, is controlled on dew point by in-cabinet temperature, thus play the generation preventing dew condensation phenomenon.The control unit 12 of this device receives the signal of each transducer in the following manner, and controls the keying of motor-operated control valve:
First, control unit 12 receives the temperature and moisture signals of inlet temperature transducer 7 and air intake humidity sensor 8, obtain the temperature and humidity of now air intake air-flow, according to the basic database of different dew point temperatures corresponding to the different humitures of control unit 12 storage inside, judge the dew point temperature T that this humiture is corresponding
conden;
Meanwhile, control unit 12 receives the temperature signal that the first in-cabinet temperature transducer 9, second in-cabinet temperature transducer 10 and the 3rd in-cabinet temperature transducer 11 transmit in real time, obtains installation frame inlet location real-time temperature T
1, T
2, T
3.
Then, control unit 12 is by T
1, T
2, T
3with T
condencompare:
(1) if T
1, T
2, T
3between be arbitraryly less than or equal to T
conden, control unit 12 sends control signal, increases the open amount of motor-operated control valve 6, strengthening hot air flow in airduct, mixing by introducing more hot blast with the air-flow of installation frame inlet location, improves inlet temperature, prevents the steam condensation in cabinet in air intake;
(2) if T
1, T
2, T
3all be greater than T
condentime, now control unit 12 sends control signal, keeps the current opening amount of motor-operated control valve 6 constant.
In addition, in order to ensure heat radiation, also a upper limit threshold T need be set in advance in control unit 12
max(as being set as 40 DEG C), when control unit 12 detects T
1, T
2, T
3between be arbitraryly greater than T
maxtime, control unit 12 sends signal, reduces the open amount of motor-operated control valve 6, reduces hot air flow in airduct, to reduce installation frame inlet location temperature, ensures the abundant heat radiation in cabinet.
Claims (5)
1. for the condensation-preventing device with cooling fan rack, the front panel of described rack (1) cabinet is offered air inlet (13), postnotum configures cooling fan (2), configuration installation frame in cabinet, is characterized in that:
Air inlet (13) in described rack (1) upper configuration inlet temperature transducer (7) and air intake humidity sensor (8), inlet temperature transducer (7) and air intake humidity sensor (8) are respectively by signal line connection control unit (12)
In rack (1) cabinet, configure at least one in-cabinet temperature transducer between installation frame arrival end and front panel, in-cabinet temperature transducer passes through signal line connection control unit (12),
Airduct (5) air intake stretches in the discharge air channel (3) of cooling fan (2), the air port (4) of getting of air intake is positioned at discharge air channel (3) center, just to the air-out direction of discharging air channel (3), the outlet air end of airduct (5) configures motor-operated control valve (6), the air outlet of outlet air end is communicated with rack (1) cabinet inner space
Control unit (12) connects motor-operated control valve (6) by control circuit.
2. according to claim 1 for the condensation-preventing device with cooling fan rack, it is characterized in that: described in-cabinet temperature number of sensors is three, be configured in the position, upper, middle and lower of rack (1) cabinet respectively, correspond to the first in-cabinet temperature transducer (9), the second in-cabinet temperature transducer (10) and the 3rd in-cabinet temperature transducer (11).
3. according to claim 1 for the condensation-preventing device with cooling fan rack, it is characterized in that: the air outlet of described airduct (5) outlet air end is communicated with rack (1) cabinet inner space from rack (1) side cabinet bottom, near front panel.
4. according to claim 1 for the condensation-preventing device with cooling fan rack, it is characterized in that: described airduct (5) connects motor-operated control valve (6) by adpting flange air-tightness.
5. according to claim 1 for the condensation-preventing device with cooling fan rack, it is characterized in that: described inlet temperature transducer (7), air intake humidity sensor (8), in-cabinet temperature transducer and motor-operated control valve (6) are respectively by wired mode or wireless mode connection control unit (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521073703.3U CN205196226U (en) | 2015-12-21 | 2015-12-21 | A prevent condensation device for taking cooling fan rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521073703.3U CN205196226U (en) | 2015-12-21 | 2015-12-21 | A prevent condensation device for taking cooling fan rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205196226U true CN205196226U (en) | 2016-04-27 |
Family
ID=55789157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521073703.3U Active CN205196226U (en) | 2015-12-21 | 2015-12-21 | A prevent condensation device for taking cooling fan rack |
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| Country | Link |
|---|---|
| CN (1) | CN205196226U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108601263A (en) * | 2018-05-25 | 2018-09-28 | 合肥择浚电气设备有限公司 | A kind of communication auxiliary device with remote control function |
| CN108879714A (en) * | 2018-06-29 | 2018-11-23 | 思源清能电气电子有限公司 | A kind of SVG control device based on environment self-adaption |
| CN108901179A (en) * | 2018-07-12 | 2018-11-27 | 中国船舶重工集团公司第七二四研究所 | A kind of adaptive condensation-resistant airtight cabinet environment control unit |
| WO2021077749A1 (en) * | 2019-10-22 | 2021-04-29 | 华为技术有限公司 | Liquid-cooling heat dissipation system, heat dissipation control method and control chip |
-
2015
- 2015-12-21 CN CN201521073703.3U patent/CN205196226U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108601263A (en) * | 2018-05-25 | 2018-09-28 | 合肥择浚电气设备有限公司 | A kind of communication auxiliary device with remote control function |
| CN108601263B (en) * | 2018-05-25 | 2020-05-19 | 合肥羿振电力设备有限公司 | Communication auxiliary device with remote control function |
| CN108879714A (en) * | 2018-06-29 | 2018-11-23 | 思源清能电气电子有限公司 | A kind of SVG control device based on environment self-adaption |
| CN108901179A (en) * | 2018-07-12 | 2018-11-27 | 中国船舶重工集团公司第七二四研究所 | A kind of adaptive condensation-resistant airtight cabinet environment control unit |
| WO2021077749A1 (en) * | 2019-10-22 | 2021-04-29 | 华为技术有限公司 | Liquid-cooling heat dissipation system, heat dissipation control method and control chip |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |