CN215898328U - Compressor-free evaporative cooling direct ventilation refrigerating system - Google Patents
Compressor-free evaporative cooling direct ventilation refrigerating system Download PDFInfo
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- CN215898328U CN215898328U CN202122435396.0U CN202122435396U CN215898328U CN 215898328 U CN215898328 U CN 215898328U CN 202122435396 U CN202122435396 U CN 202122435396U CN 215898328 U CN215898328 U CN 215898328U
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Abstract
The utility model discloses a compressor-free evaporative cooling straight ventilation refrigerating system, which comprises a wind mixing system, an evaporative cooling system, an air supply system, a cold channel, a server cabinet, a hot channel, a temperature and humidity sensor, a pressure sensor, an air return channel, an air exhaust system and a control system, wherein the air mixing system is connected with the server cabinet through a pipeline; the air mixing system, the evaporative cooling system, the air supply system, the server cabinet, the air exhaust system, the temperature and humidity sensor and the pressure sensor are respectively and electrically connected with the control system; the air mixing system, the evaporative cooling system and the air supply system are sequentially communicated, the air supply system is communicated with the server cabinet through a cold channel, the top of the server cabinet is communicated with a hot channel, the hot channel is respectively communicated with an air return channel and an air exhaust system, and temperature and humidity sensors are respectively installed in the cold channel and the air return channel.
Description
Technical Field
The utility model relates to the technical field of refrigeration, in particular to an evaporative cooling direct ventilation refrigeration system without a compressor.
Background
Energy-saving refrigeration technology of data centers is always the direction of research in the industry. The traditional water-cooling and air-cooling direct expansion refrigeration technology is suitable for most areas, but the energy consumption is high due to multiple times of energy conversion; the indirect ventilation refrigeration technology is suitable for the climatic characteristics of low average temperature, dryness and low air quality in northern areas, and still has the energy loss of wind/wind heat exchange; the direct ventilation refrigeration technology reduces energy conversion and transmission links, is suitable for areas with low average air temperature, dryness and good air quality, and has good energy-saving effect. However, the conventional straight ventilation refrigerating system does not combine the operating condition and meteorological condition of the server for deep research, and is still provided with a compressor for refrigeration in order to cope with high-temperature and high-humidity weather, so that not only is the initial investment increased, but also extra energy conversion loss is generated, and a space for further optimizing and reducing energy consumption exists.
The existing refrigerating system can not automatically adjust according to the conditions of outdoor and indoor temperature, humidity and pressure, so that the power consumption is overlarge and the energy-saving effect is poor.
SUMMERY OF THE UTILITY MODEL
Along with the progress of the technology, the server relaxes the requirements on the environmental temperature and humidity to a certain extent, and improves the possibility of completely utilizing natural fresh air for refrigeration. Through deep research on meteorological data, the air drying and wet-dry bulb temperature difference of regions such as northern provinces and southwest cloud plateau of China is found to be large, extreme high-temperature and high-humidity weather cannot occur simultaneously, and the air quality is good. Aiming at the climatic characteristic, the utility model aims to provide an evaporative cooling straight ventilation refrigerating system without a compressor and a control method thereof, when the outdoor temperature is lower, fresh air is directly utilized for cooling; when the outdoor temperature rises, the humidifying system is started to realize waiting for humidification and temperature reduction. The method is used for reducing energy conversion and transmission links, solving the technical problem that the straight ventilation refrigerating system in the background technology has a compressor, and achieving the most obvious energy-saving effect.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a compressor-free evaporative cooling straight ventilation refrigerating system, which comprises a wind mixing system, an evaporative cooling system, an air supply system, a cold channel, a server cabinet, a hot channel, a temperature and humidity sensor, a pressure sensor, an air return channel, an air exhaust system and a control system, wherein the air mixing system is connected with the server cabinet through a pipeline; the air mixing system, the evaporative cooling system, the air supply system, the server cabinet, the air exhaust system, the temperature and humidity sensor and the pressure sensor are respectively and electrically connected with the control system; the air mixing system, the evaporative cooling system and the air supply system are sequentially communicated, the air supply system is communicated with the server cabinet through a cold channel, the top of the server cabinet is communicated with a hot channel, the hot channel is respectively communicated with an air return channel and an air exhaust system, and temperature and humidity sensors are respectively installed in the cold channel and the air return channel.
Preferably, mix the wind system and include a plurality of forced draught blower subassembly, new trend entry, return air entry, new trend valve, filter and return air valve, the new trend gets into the forced draught blower through the new trend entry, the outside fixed connection filter of new trend entry, new trend entry and new trend valve fixed connection, return air entry and return air passageway be linked together, return air entrance install the return air valve forced draught blower subassembly and evaporative cooling system be linked together.
Preferably, the evaporative cooling system comprises an air conditioning unit, a silencer, an air purifier and a wet film humidifier, and the air conditioning unit, the silencer, the air purifier and the wet film humidifier are respectively connected with the control system.
Preferably, the air supply system comprises an air blower, and a safe filter screen is fixedly connected between the air supply system and the cold channel.
Preferably, the exhaust system comprises an exhaust channel, a check valve and an exhaust fan, wherein the check valve and the exhaust fan are fixedly connected to the exhaust channel.
The utility model has the beneficial effects that:
the utility model uses 100% of external air, and refrigerates through the air conditioning unit and the wet film humidifier, and can realize high-efficiency refrigeration without a compressor, thereby reducing energy consumption.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a compressor-free evaporative cooling straight ventilation refrigeration system according to an embodiment of the present invention.
Description of reference numerals:
1-air mixing system, 2-evaporative cooling system, 3-air supply system, 4-cold channel, 5-server cabinet, 6-hot channel, 7-temperature and humidity sensor, 8-pressure sensor, 9-return air channel, 10-air exhaust system, 101-air supply component, 102-fresh air inlet, 103-return air inlet, 104-fresh air valve, 105-filter, 106-return air valve, 201-air conditioning unit, 202-muffler, 203-air purifier, 204-wet film humidifier, 301-air supply, 302-safety filter screen, 601-air exhaust channel, 602-check valve, 603-exhaust fan.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1, the system comprises an air mixing system 1, an evaporative cooling system 2, an air supply system 3, a cold channel 4, a server cabinet 5, a hot channel 6, a temperature and humidity sensor 7, a pressure sensor 8, an air return channel 9, an air exhaust system 10 and a control system; the air mixing system 1, the evaporative cooling system 2, the air supply system 3, the server cabinet 5, the exhaust system 10, the temperature and humidity sensor 7 and the pressure sensor 8 are respectively electrically connected with the control system; mix wind system 1, evaporative cooling system 2 and air supply system 3 and be linked together in proper order, air supply system 3 and server rack 5 between be linked together through cold passageway 4, 5 tops of server rack be linked together with hot passageway 6, hot passageway 6 be linked together with return air passageway 9 and exhaust system 10 respectively, cold passageway 4 and return air passageway 9 in all install temperature and humidity sensor 7.
Further, the air mixing system 1 comprises a plurality of air feeder assemblies 101, a fresh air inlet 102, a return air inlet 103, a fresh air valve 104, a filter 105 and a return air valve 106, fresh air enters the air feeder through the fresh air inlet 102, the outside of the fresh air inlet 102 is fixedly connected with the filter 105, the fresh air inlet 102 is fixedly connected with the fresh air valve 104, the return air inlet 103 is communicated with the return air channel 9, the return air inlet 103 is provided with the return air valve 106, and the air feeder assemblies 101 are communicated with the evaporative cooling system 2.
Further, the evaporative cooling system 2 includes an air conditioning unit 201, a muffler 202, an air purifier 203 and a wet film humidifier 204, and the air conditioning unit 201, the muffler 202, the air purifier 203 and the wet film humidifier 204 are respectively connected to the control system.
Further, the air supply system 3 comprises an air supply blower 301, and a safety filter screen 302 is fixedly connected between the air supply system 3 and the cold channel 4.
Further, the exhaust system 10 includes an exhaust channel 601, a check valve 602, and an exhaust fan 603, where the check valve 602 and the exhaust fan 603 are fixedly connected to the exhaust channel 601.
The utility model provides a compressor-free evaporative cooling straight ventilation refrigeration system which is controlled by the following method and comprises the following steps:
s1: the control system controls the air mixing system 1 to suck fresh air and filter the fresh air;
s2: the fresh air and the return air are mixed to form mixed air and enter the evaporative cooling system 2, the fresh air is refrigerated through the air conditioning unit 201 and the wet film humidifier 204, the refrigerated mixed air is purified through the air purifier 203, and the control system controls the silencer 202 to reduce noise generated in the evaporation and purification processes;
s3: the refrigerated mixed air enters a cold channel 4 through an air supply system 3 and then enters a server cabinet 5 from the cold channel 4, and hot air generated by the server cabinet 5 enters a hot channel 6 and is discharged through an exhaust system 10;
and S4, comparing the temperature and humidity information and the pressure information fed back by the temperature and humidity sensor 7 and the pressure sensor 8 with a set threshold value by the system, and automatically adjusting the normal operation of the air mixing system 1, the evaporative cooling system 2, the air supply system 3, the server cabinet 5 and the exhaust system.
Comparing the enthalpy value of the cold channel with the enthalpy value of outdoor air through a temperature and humidity sensor 7, so as to adjust the opening ratio of the fresh air valve 104 and the return air valve 106;
the temperature and humidity sensor 7 compares the enthalpy value of the cold channel and the enthalpy value of outdoor air to control the switch of an electromagnetic valve of a water supply pipe of the wet film humidifier 204;
the pressure sensor 8 compares the pressure difference of the cold channel and the hot channel with the positive pressure set value to control the rotating speed of the EC direct-current brushless air feeder so as to maintain the static pressure of the cold channel;
the pressure sensor 8 is used for comparing the set values of the pressure difference and the positive pressure of the hot channel and the outdoor to control the rotating speed of the variable-frequency exhaust fan so as to maintain the static pressure of the hot channel.
The utility model takes the operation condition of the server as a reference, responds to the following various condition changes by accurate calculation and control and applying the lowest energy consumption, and realizes the optimal energy-saving operation of the system. The server operation conditions are shown in the following table:
1% of the time of year: the air temperature exceeds the allowable working condition of 32 ℃; directly evaporating, cooling and refrigerating, and reducing the temperature of the supplied air to below 28 ℃ in an isenthalpic humidifying mode.
6% of the time of year: the air temperature is 28 ℃ higher than the optimal working condition, but still within the range of 32 ℃ under the allowable working condition; no control is required and refrigeration can be achieved by absorbing latent heat from the air by vaporization as long as the relative humidity is maintained.
17% of the time all year: the air temperature is in the range of 28 ℃ under the optimal working condition, and the relative humidity is higher than 80 percent; returning air to ensure that the relative humidity is lower than 80 percent.
76% of the year: the air temperature is lower than 18 ℃, and the relative humidity is within 80% of the optimal working condition; returning air to ensure that the temperature is higher than 18 ℃.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (5)
1. A compressor-free evaporation cooling straight ventilation refrigerating system is characterized by comprising an air mixing system, an evaporation cooling system, an air supply system, a cold channel, a server cabinet, a hot channel, a temperature and humidity sensor, a pressure sensor, an air return channel, an air exhaust system and a control system; the air mixing system, the evaporative cooling system, the air supply system, the server cabinet, the air exhaust system, the temperature and humidity sensor and the pressure sensor are respectively and electrically connected with the control system; the air mixing system, the evaporative cooling system and the air supply system are sequentially communicated, the air supply system is communicated with the server cabinet through a cold channel, the top of the server cabinet is communicated with a hot channel, the hot channel is respectively communicated with an air return channel and an air exhaust system, and temperature and humidity sensors are respectively installed in the cold channel and the air return channel.
2. A compressor-free evaporative cooling straight-through air refrigeration system as claimed in claim 1, wherein the air mixing system comprises a plurality of air feeder assemblies, a fresh air inlet, a return air inlet, a fresh air valve, a filter and a return air valve, fresh air enters the air feeder through the fresh air inlet, the filter is fixedly connected to the outside of the fresh air inlet, the fresh air inlet is fixedly connected to the fresh air valve, the return air inlet is communicated with the return air channel, the return air inlet is provided with the return air valve, and the air feeder assemblies are communicated with the evaporative cooling system.
3. A compressor-free, evaporative cooling, straight-through air chilling system as claimed in claim 1 wherein said evaporative cooling system includes an air conditioning unit, a muffler, an air purifier and a wet film humidifier, said air conditioning unit, muffler, air purifier and wet film humidifier being connected to a control system respectively.
4. A compressor-free, evaporative cooling, straight-through air chilling system as claimed in claim 1 wherein said air supply system includes a blower, and a safety screen is fixedly attached between said air supply system and said cold aisle.
5. A compressor-free, evaporative cooling, straight-through air chilling system as set forth in claim 1 wherein said exhaust system includes an exhaust passage, a check valve and an exhaust fan, said check valve and exhaust fan being fixedly attached to said exhaust passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122435396.0U CN215898328U (en) | 2021-10-05 | 2021-10-05 | Compressor-free evaporative cooling direct ventilation refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122435396.0U CN215898328U (en) | 2021-10-05 | 2021-10-05 | Compressor-free evaporative cooling direct ventilation refrigerating system |
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| Publication Number | Publication Date |
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| CN215898328U true CN215898328U (en) | 2022-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122435396.0U Active CN215898328U (en) | 2021-10-05 | 2021-10-05 | Compressor-free evaporative cooling direct ventilation refrigerating system |
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|---|---|
| CN (1) | CN215898328U (en) |
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2021
- 2021-10-05 CN CN202122435396.0U patent/CN215898328U/en active Active
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