CN211503094U - Machine room cooling system and indirect evaporative cooling bypass system - Google Patents
Machine room cooling system and indirect evaporative cooling bypass system Download PDFInfo
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- CN211503094U CN211503094U CN201922421566.2U CN201922421566U CN211503094U CN 211503094 U CN211503094 U CN 211503094U CN 201922421566 U CN201922421566 U CN 201922421566U CN 211503094 U CN211503094 U CN 211503094U
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Abstract
The utility model discloses an indirect evaporative cooling bypass system, include: an outdoor air inlet bin; an outdoor air outlet bin; the heat exchanger is arranged between the outdoor air inlet bin and the outdoor air outlet bin and used for realizing heat exchange between outdoor air and indoor air; an indoor fan communicated with the inside of the heat exchanger; the outdoor fan is communicated with the outside of the heat exchanger; the outdoor air outlet bin is provided with an exhaust valve and a bypass valve communicated with the outdoor air inlet bin, and further comprises a temperature sensor for detecting the temperature of outdoor air and a control mechanism connected with the temperature sensor; the control mechanism is connected with the exhaust valve and the bypass valve, and the opening degree of the exhaust valve is adjustable; when the outdoor temperature is lower than a first preset temperature value, the control mechanism is used for controlling the opening of the bypass valve and reducing the opening of the exhaust valve. The utility model discloses still disclose the computer lab cooling system including above-mentioned indirect evaporative cooling bypass system. The indirect evaporative cooling bypass system can effectively control the air supply temperature and avoid frosting or icing of the heat exchanger.
Description
Technical Field
The utility model relates to a refrigeration plant technical field, in particular to indirect evaporative cooling bypass system. The utility model discloses still relate to a computer lab cooling system including above-mentioned indirect evaporative cooling bypass system.
Background
Along with the advocated national energy saving and emission reduction, the idea of the green data center is more and more emphasized, and the evaporative cooling technology is also popularized and applied to the field of machine room air conditioners, so that heat exchange and cooling are carried out on a machine room by utilizing outdoor air and a heat exchanger, and natural clean energy is fully utilized. However, in cold regions, when the outdoor temperature is low, the heat exchanger is prone to frosting or icing, damage is caused to the heat exchanger, and stable control of the air supply temperature of the unit is not facilitated. Therefore, how to control the temperature of the supplied air becomes a technical problem to be solved by those skilled in the art. It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure, and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an indirect evaporative cooling bypass system, this cooling bypass can effectively maintain air supply temperature stable, avoids outdoor temperature to hang down excessively to lead to the heat exchanger to frost or freeze, is favorable to maintaining cooling bypass system's normal operating.
In order to achieve the above object, the present invention provides an indirect evaporative cooling bypass system, comprising: an outdoor air inlet bin; an outdoor air outlet bin; the heat exchanger is arranged between the outdoor air inlet bin and the outdoor air outlet bin and used for realizing heat exchange between outdoor air and indoor air; the indoor fan is communicated with the inside of the heat exchanger; the outdoor fan is communicated with the outside of the heat exchanger;
the outdoor air outlet bin is provided with an exhaust valve and a bypass valve communicated with the outdoor air inlet bin, and further comprises a temperature sensor for detecting the temperature of outdoor air and a control mechanism connected with the temperature sensor; the control mechanism is connected with the exhaust valve and the bypass valve, and the opening degree of the exhaust valve is adjustable; when the outdoor temperature is lower than a first preset temperature value, the control mechanism is used for controlling the opening of the bypass valve and reducing the opening of the exhaust valve.
Optionally, bypass pipelines communicated with the outdoor air inlet bin and the outdoor air outlet bin are arranged on two sides of the heat exchanger, and the bypass valves are arranged in the bypass pipelines.
Optionally, an outdoor air outlet louver is arranged at the exhaust valve.
Optionally, the outdoor fan is arranged in the outdoor air outlet bin.
Optionally, a water collector is arranged above the heat exchanger, the water collector is provided with a sprayer for spraying cooling water to the heat exchanger, and the sprayer is connected with the control mechanism.
Optionally, a water pan is arranged below the heat exchanger, and the water collector further comprises a water pump for pumping cooling water in the water pan to the water collector.
Optionally, the air conditioner further comprises a humidity sensor for detecting the humidity of the outdoor air, wherein the humidity sensor is connected with the control mechanism;
the sprayer starts water spraying when the outdoor temperature is higher than a second preset temperature value or the outdoor humidity is lower than a first preset humidity value, and the second preset temperature value is larger than the first preset temperature value.
Alternatively, the opening degree of the exhaust valve decreases as the outdoor air temperature decreases.
The utility model also provides a computer lab cooling system, including above-mentioned indirect evaporative cooling bypass system.
Optionally, the air conditioner further comprises a heating device for heating the outdoor air entering the outdoor air inlet bin.
Compared with the prior art, the utility model provides an indirect evaporative cooling bypass system crosses and sets up the bypass valve in outdoor air-out storehouse and exhaust valve and the outdoor air inlet storehouse of intercommunication, when temperature sensor detected outdoor air low excessively, if be less than when first preset temperature value, the aperture of adjusting the exhaust valve simultaneously is opened to the control bypass valve, with outdoor air-out storehouse, hot-air after the heat exchanger heat transfer intensifies is carried to outdoor air-in storehouse and air inlet air mixing by the bypass valve, air inlet temperature has been promoted, the heat exchanger frosting or freezing has been avoided, ensure that this cooling bypass can normally work. The air quantity of the hot air from the outdoor air outlet bin to the outdoor air inlet bin is controlled by adjusting the opening degree of the air exhaust valve, so that the stability of the air inlet temperature is favorably maintained.
The heat exchange between the indoor air and the outdoor air is realized through the heat exchanger, the indoor fan conveys hot air to the inside of the heat exchanger, and the outdoor fan sucks outdoor cold air from the outdoor air inlet bin, and discharges the cold air from the outdoor air outlet bin and the exhaust valve after heat exchange through the heat exchanger. The first preset temperature value can be flexibly set according to different regions.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic view of a first view of an indirect evaporative cooling bypass system according to a first embodiment of the present invention;
fig. 2 is a schematic diagram of a second view angle of the indirect evaporative cooling bypass system according to the first embodiment of the present invention.
Fig. 3 is a schematic view of an indirect evaporative cooling bypass system according to a second embodiment of the present invention.
Wherein:
1-outdoor fan, 2-bypass valve, 3-water collector, 4-sprayer, 5-heat exchanger, 6-temperature sensor, 7-humidity sensor, 8-water pan, 9-exhaust valve, 10-outdoor air outlet shutter, 11-indoor fan, 12-outdoor air outlet bin, 13-outdoor air inlet bin and 14-air conditioner installation bin.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic view of a first viewing angle of an indirect evaporative cooling bypass system according to a first embodiment of the present invention, fig. 2 is a schematic view of a second viewing angle of the indirect evaporative cooling bypass system according to the first embodiment of the present invention, and fig. 3 is a schematic view of the indirect evaporative cooling bypass system according to a second embodiment of the present invention; the direction of the arrow in the drawing indicates the flow direction of the cooling wind (air).
The utility model provides an indirect evaporative cooling bypass system includes outdoor air inlet storehouse 13 and outdoor play wind storehouse 12, is equipped with heat exchanger 5 between outdoor air inlet storehouse 13 and the outdoor play wind storehouse 12. Indoor hot air is conveyed to the interior of the heat exchanger 5 through the indoor fan 11, the outdoor fan 1 sucks external cold air, the external cold air enters from the outdoor air inlet bin 13, and is discharged from the outdoor air outlet bin 12 after being subjected to heat exchange and temperature rise with the indoor hot air through the heat exchanger 5. Through the bypass valve 2 that sets up exhaust valve 9 and intercommunication outdoor air inlet storehouse 13 at outdoor air-out storehouse 12, when outdoor air temperature was low excessively, in order to avoid the top layer of heat exchanger 5 to frost or freeze, open bypass valve 2, turn down exhaust valve 9, carry the air after the heat transfer intensifies to outdoor air inlet storehouse 13 and carry to heat exchanger 5 and indoor hot-air to carry out the heat transfer after mixing with the outside cold air, the aperture of utilizing exhaust valve 9 is adjustable is convenient for maintain the stability of air supply temperature, the normal operating of this cooling bypass has been guaranteed.
The outdoor air temperature is detected by the temperature sensor 6, and the detection result is compared with a first preset temperature value stored in the control mechanism. When the outdoor air temperature is lower than the first preset temperature value, the control mechanism controls the bypass valve 2 to be opened, meanwhile, the opening degree of the exhaust valve 9 is reduced, and more heated hot air is conveyed to the outdoor air inlet bin 13 to be mixed with cold air to maintain the stability of the inlet air temperature.
The indirect evaporative cooling bypass system provided by the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments.
The utility model provides an in a concrete embodiment, outdoor air inlet storehouse 13 and outdoor play storehouse 12 are the cang dao of two end to end intercommunications, are equipped with air intake and air exit respectively, the two can be the U type connection on a large scale, heat exchanger 5 sets up in U type turn, exhaust valve 9 sets up the air exit department at outdoor play storehouse 12, bypass valve 2 then communicates outdoor air inlet storehouse 13 and outdoor play storehouse 12, realize carrying to outdoor air inlet storehouse 13, promote the effect of air inlet temperature through the air after 5 heat transfer intensifications of heat exchanger. The temperature of outdoor air is detected by arranging the detection temperature sensor 6, when the temperature of the outdoor air is lower than a first preset temperature value, such as zero centigrade, the control mechanism connected with the temperature sensor 6, the bypass valve 2 and the exhaust valve 9 controls the bypass valve 2 to be opened, the opening degree of the exhaust valve 9 is reduced, hot air out of the outdoor air outlet bin 12 enters the outdoor air inlet bin 13 through the bypass valve 2, and the air inlet temperature of the outdoor side of the heat exchanger 5 is increased.
The utility model provides a still parallelly arranged of another kind of embodiment, outdoor intake stack 13 and outdoor play wind storehouse 12 connect into the I shape through heat exchanger 5, only need set up bypass pipeline and walk around heat exchanger 5 for the hot-air that outdoor play wind storehouse 12 was interior can directly get into outdoor play wind storehouse 12 can. When the outdoor air inlet bin 13 and the outdoor air outlet bin 12 are arranged in parallel, bypass pipelines for communicating the outdoor air inlet bin 13 with the outdoor air outlet bin 12 can be arranged on two sides of the heat exchanger 5, and the bypass valves 2 are arranged in the bypass pipelines and are in one-to-one correspondence with the bypass pipelines. The arrangement of the temperature sensor 6 and the control mechanism can be referred to the prior art. The bypass pipeline can be arranged on both sides of the heat exchanger 5 or on one side of the heat exchanger, as long as the bypass pipeline can convey hot air from the outdoor air outlet bin 12 to the outdoor air inlet bin 13.
The utility model discloses an aperture adjustable exhaust valve 9, the control mechanism of being convenient for adjusts exhaust valve 9's aperture according to the air inlet temperature in outdoor air inlet storehouse 13 in a flexible way to the volume of hot-air in the control entering outdoor air inlet storehouse 13 maintains the stability of the temperature of 5 air inlet sides of heat exchanger.
When the device is specifically implemented, the outdoor air outlet louver 10 is arranged at the exhaust valve 9, and a certain shielding protection is formed on the air outlet of the outdoor air outlet bin 12 and the exhaust valve 9 through the outdoor air outlet louver 10, so that dust is prevented from being accumulated at the exhaust valve 9 to influence the adjustment of the opening degree of the exhaust valve 9. The heat exchanger 5 can adopt a tube panel type heat exchanger, indoor hot air is sucked by the indoor fan 11 and conveyed to the inside of the heat exchanger 5, and outside air flows outside the heat exchanger 5, inside the outdoor air inlet bin 13 and the outdoor air outlet bin 12 and exchanges heat with the hot air inside the heat exchanger 5. In order to accelerate the outdoor air to flow in the outdoor air inlet bin 13 and the outdoor air outlet bin 12, the outdoor fan 1 is arranged to suck the outdoor air, the air inlet flow speed outside the heat exchanger 5 is accelerated, and the heat exchange efficiency is improved.
Specifically, the outdoor fan 1 may be disposed in the outdoor air inlet compartment 13, or may be disposed on the outdoor air outlet compartment 12 side. When the outdoor fan 1 is arranged at the side of the outdoor air inlet bin 13, the bypass valve 2 or the air outlet of the bypass pipeline can be connected in front of the air suction opening of the outdoor fan 1; when the outdoor fan 1 is disposed at the outdoor outlet bin 12 side, the bypass valve 2 or the bypass duct may be connected behind the air outlet of the outdoor fan 1.
In order to enhance the heat exchange efficiency, a spraying mechanism is arranged above the heat exchanger 5, and specifically comprises a water receiver 3 arranged above the heat exchanger 5 and used for storing water and a sprayer 4 connected with the water receiver 3 and used for spraying cooling water to the heat exchanger 5, wherein the sprayer 4 is connected with a control mechanism and used for controlling the spraying amount according to the outdoor air temperature, and when the outdoor temperature is too high and is higher than a second preset temperature value, the control mechanism controls the sprayer 4 to spray the cooling water to cool the heat exchanger 5 and the outdoor hot air.
Due to the atomization and humidification, the temperature of the air at the air inlet side of the heat exchanger 5 can be reduced to be close to the wet bulb temperature, so that small-temperature-difference heat exchange is facilitated; on the other hand, the specific heat capacity of water is about 4 times of that of air, and the water film evaporation on the surface of the heat exchanger 5 can also take away heat, so that the heat exchange efficiency is enhanced.
Further, the cooling bypass system further comprises a humidity sensor 7 used for detecting the humidity of outdoor air, the humidity sensor 7 is connected with the control mechanism, and when the detected humidity is lower than a first preset humidity value, the spray thrower 4 is controlled to spray water, cool and humidify, so that the heat exchange efficiency is enhanced. The temperature sensor 6 and the humidity sensor 7 are usually arranged in a plurality of groups, and the average value obtained by the detection of the plurality of groups is compared with a preset value, so that the control mechanism can control the action of the bypass valve 2, the exhaust valve 9 and the sprayer 4. The temperature sensor 6 and the humidity sensor 7 are usually disposed together and are disposed on the outdoor air intake compartment 13 side, more specifically, between the air outlet of the bypass valve 2 or the bypass duct and the air intake side of the heat exchanger 5.
The cooling water sprayed to the surface of the heat exchanger 5 by the sprayer 4 cannot be completely evaporated by the heat exchanger 5, so that in specific implementation, the water receiving tray 8 is further arranged below the heat exchanger 5 and used for receiving the cooling water sprayed to the heat exchanger 5 by the sprayer 4 and flowing down, and the cooling water in the water receiving tray 8 is conveyed to the water receiver 3 for recycling through the water pump, so that water conservation is realized.
For better stabilizing the temperature of the intake air, the opening degree of the exhaust valve 9 is set to correspond to the temperature of the outdoor air, that is, the opening degree of the exhaust valve 9 is gradually increased along with the decrease of the temperature of the outdoor air. The corresponding relationship is a continuous corresponding relationship, that is, each temperature value corresponds to a certain opening degree of the exhaust valve 9. Of course, for the convenience of controlling the opening of the exhaust valve 9 by the control mechanism, a certain temperature section may be used corresponding to one opening. The first preset temperature value, the second preset temperature value and the first preset humidity value can be set according to needs and stored in the control mechanism in advance. Wherein, the second preset temperature value is higher than the first preset temperature value.
In particular, in order to increase the temperature of the intake air in the outdoor intake compartment 13, the intake air is heated by the hot air exhausted from the outdoor unit of the air conditioner. As shown in fig. 3, the indirect evaporative cooling bypass system is disposed in the air conditioning installation bin 14, the hot air exhausted by the bypass valve 2 enters the outdoor air intake bin 13 through the air conditioning installation bin 14, and the air conditioning installation bin 14 serves as a bypass duct. When the hot air discharged from the bypass valve 2 flows through the air conditioner installation bin 14, the hot air can be further heated by the hot air discharged from the outdoor unit of the air conditioner.
The utility model also provides a computer lab cooling system, including the indirect evaporative cooling bypass system that above-mentioned embodiment described. Furthermore, the air conditioner also comprises a heating device for heating outdoor air, namely air entering the outdoor air inlet bin 13, wherein the heating device can adopt an electric heater, or adopt an air conditioner outdoor unit as the above embodiment, and the air conditioner outdoor unit heats the air by hot air discharged by the air conditioner outdoor unit. Other parts of the machine room cooling system can be referred to the prior art and are not expanded in detail here.
It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
It is right above the utility model provides a computer lab cooling system and indirect evaporative cooling bypass system have carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. An indirect evaporative cooling bypass system comprising: an outdoor air inlet bin (13); an outdoor air outlet bin (12); the heat exchanger (5) is arranged between the outdoor air inlet bin (13) and the outdoor air outlet bin (12) and is used for realizing heat exchange between outdoor air and indoor air; an indoor fan (11) communicated with the inside of the heat exchanger (5); the outdoor fan (1) is communicated with the outside of the heat exchanger (5); it is characterized in that the preparation method is characterized in that,
the outdoor air outlet bin (12) is provided with an exhaust valve (9) and a bypass valve (2) communicated with the outdoor air inlet bin (13), and further comprises a temperature sensor (6) used for detecting the temperature of outdoor air and a control mechanism connected with the temperature sensor (6); the control mechanism is connected with the exhaust valve (9) and the bypass valve (2), and the opening degree of the exhaust valve (9) is adjustable; when the outdoor temperature is lower than a first preset temperature value, the control mechanism is used for controlling the bypass valve (2) to be opened and reducing the opening degree of the exhaust valve (9).
2. The indirect evaporative cooling bypass system of claim 1, wherein bypass pipelines communicating the outdoor air inlet bin (13) and the outdoor air outlet bin (12) are arranged on two sides of the heat exchanger (5), and the bypass valve (2) is arranged in the bypass pipelines.
3. The indirect evaporative cooling bypass system of claim 1, wherein an outdoor air outlet louver (10) is provided at the exhaust valve (9).
4. The indirect evaporative cooling bypass system of claim 1, wherein the outdoor fan (1) is disposed in the outdoor outlet bin (12).
5. The indirect evaporative cooling bypass system of claim 2, wherein a water collector (3) is arranged above the heat exchanger (5), the water collector (3) is provided with a sprayer (4) used for spraying cooling water to the heat exchanger (5), and the sprayer (4) is connected with the control mechanism.
6. The indirect evaporative cooling bypass system of claim 5, wherein a water pan (8) is provided below the heat exchanger (5), and a water pump is provided for pumping cooling water in the water pan (8) to the water collector (3).
7. The indirect evaporative cooling bypass system of claim 6, further comprising a humidity sensor (7) for detecting the humidity of the outdoor air, the humidity sensor (7) being connected to the control mechanism;
the sprayer (4) starts to spray water when the outdoor temperature is higher than a second preset temperature value or the outdoor humidity is lower than a first preset humidity value, and the second preset temperature value is larger than the first preset temperature value.
8. The indirect evaporative cooling bypass system according to any one of claims 1 to 7, wherein the opening degree of the exhaust valve (9) decreases as the outdoor air temperature decreases.
9. A machine room cooling system, characterized by comprising the indirect evaporative cooling bypass system of any one of claims 1 to 8.
10. Machine room cooling system according to claim 9, further comprising heating means to heat the outdoor air entering the outdoor air intake compartment (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922421566.2U CN211503094U (en) | 2019-12-27 | 2019-12-27 | Machine room cooling system and indirect evaporative cooling bypass system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922421566.2U CN211503094U (en) | 2019-12-27 | 2019-12-27 | Machine room cooling system and indirect evaporative cooling bypass system |
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| CN211503094U true CN211503094U (en) | 2020-09-15 |
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| CN201922421566.2U Active CN211503094U (en) | 2019-12-27 | 2019-12-27 | Machine room cooling system and indirect evaporative cooling bypass system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112954955A (en) * | 2021-01-25 | 2021-06-11 | 华为技术有限公司 | Cooling system and data center |
| CN113418253A (en) * | 2021-06-30 | 2021-09-21 | 深圳市英维克科技股份有限公司 | Indoor environment temperature adjusting device, control method, computer device and medium |
| CN113418252A (en) * | 2021-06-30 | 2021-09-21 | 深圳市英维克科技股份有限公司 | Indoor environment temperature adjusting device, control method thereof, computer device, and medium |
-
2019
- 2019-12-27 CN CN201922421566.2U patent/CN211503094U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112954955A (en) * | 2021-01-25 | 2021-06-11 | 华为技术有限公司 | Cooling system and data center |
| CN113418253A (en) * | 2021-06-30 | 2021-09-21 | 深圳市英维克科技股份有限公司 | Indoor environment temperature adjusting device, control method, computer device and medium |
| CN113418252A (en) * | 2021-06-30 | 2021-09-21 | 深圳市英维克科技股份有限公司 | Indoor environment temperature adjusting device, control method thereof, computer device, and medium |
| CN113418253B (en) * | 2021-06-30 | 2023-02-24 | 深圳市英维克科技股份有限公司 | Indoor environment temperature adjusting device, control method, computer device and medium |
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