CN112153874A - 5G base station integrated cabinet with self-cleaning maintenance-free fresh air cooling function and control method - Google Patents
5G base station integrated cabinet with self-cleaning maintenance-free fresh air cooling function and control method Download PDFInfo
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20209—Thermal management, e.g. fan control
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20181—Filters; Louvers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20318—Condensers
Abstract
The invention discloses a 5G base station integrated cabinet with a self-cleaning maintenance-free fresh air cooling function, which comprises a cabinet body, wherein the cabinet body is provided with an air inlet system and an air outlet system, a charging device and a dust collecting device are arranged on the cabinet body, and the dust collecting device is provided with a self-cleaning device. The invention also discloses a control method of the cabinet. The cabinet body is cooled by introducing a large amount of outdoor fresh air, so that the air conditioner is replaced to operate in most of time; along with the development of battery technique, the battery will have higher tolerance temperature to can all carry out the rack cooling with the new trend, replace the air conditioner completely, effectively reduce the power consumption of 5G rack more.
Description
Technical Field
The invention relates to the technical field of fresh air and 5G, in particular to a 5G base station integrated cabinet with a self-cleaning maintenance-free fresh air cooling function and a control method.
Background
At present, two main purification technologies for removing particulate matters in air are available: (1) filtering purification, which mainly filters or adsorbs pollutants in the air through fibers and a filtering material based on the fibers, thereby purifying the air; (2) the electrostatic purification uses the electric field of the dust collecting device to capture charged particles by charging the particles in the air, thereby achieving the purpose of purifying the air. Compare filtration formula purification, electrostatic purification only needs regularly to wash dust collecting device, need not change, and the running resistance is low, the working costs is few, the later maintenance expense is low, and can kill microorganisms such as bacterium in the air, has fine market perspective.
The fifth generation mobile communication technology (5G or 5G technology for short) is the latest generation cellular mobile communication technology, and as the construction of 5G base stations in various cities is accelerated, the demand of 5G base station outdoor integrated cabinets is increasing.
The power consumption of the 5G base station is 6-7 times that of the 4G base station. The 5G base station introduces a large-scale MIMO technology and a beam forming technology, the traditional multi-frequency antenna is changed into an array antenna, and the directional radiation is changed into multi-beam forming which can be realized through software. The 5G base station mainly consists of BBU (CU (central unit) + DU (distributed unit)) and AAU (RRU + antenna feed system, i.e. active antenna), and 4 station types are defined in 3 GPP: conductive type (BS type 1-C), hybrid type (BS type 1-H), open type (BS type 1-O, type 2-O). The 4G base station mainly comprises a BBU, an RRU and a passive antenna.
The IT equipment and the battery have different working temperatures, and the upper limit of the design temperature of the IT equipment is higher than the upper limit of the design temperature of the battery. Compared with a lithium battery, the lead-acid battery has large volume and low heat-resistant temperature; because the consumption greatly increased of 5G rack, the internal IT equipment of cabinet gives out a large amount of heats, needs the higher air conditioner of refrigerating output to cool down, and improves the design temperature upper limit of 5G rack, will be favorable to greatly reducing the air conditioner energy consumption. In the 5G cabinet application, the lithium battery has higher tolerance temperature and small volume under the same condition, the cabinet generally uses the lithium battery at the present stage, the working temperature range of the lithium battery is wider, and the lithium battery can work at 40-60 ℃ in a short time. With the development of battery technology, batteries can withstand higher temperatures; a large amount of outdoor natural air is introduced into a room, and then the heat of the cabinet body is taken away through air exhaust, so that the air conditioner is replaced or replaced to operate, and the dilemma that the power consumption of the 5G cabinet is increased greatly is solved most effectively.
The heat of the cabinet mainly comes from the heat productivity of the IT equipment, the heat transmitted through the cabinet body, solar radiation, gap hole penetration and the like. The main cooling mode of the outdoor integrated cabinet of the base station at the present stage is air-conditioning refrigeration, which consumes a large amount of electric energy, and along with the development of 5G, the electric energy of the communication industry is greatly increased. In another mode, purified natural cold air is sent into the cabinet, an air conditioner is replaced for a part of time to cool, a purification unit is in filtering type purification, a primary filter and a secondary filter are mainly combined, and most of the natural cold air is abandoned by primary managers due to the problems that an air inlet is easy to block, the filter is easy to block, the maintainability is poor, the maintenance cost is high, the failure rate is high and the like.
At present, equipment and a control method which can effectively utilize outdoor fresh air to cool an outdoor integrated cabinet of a 5G base station are lacked.
Therefore, the invention is especially provided.
Disclosure of Invention
The invention aims to provide a 5G base station integrated cabinet with a self-cleaning maintenance-free fresh air cooling function and a control method, which can make full use of outdoor fresh air to carry out intelligent cooling on the cabinet. The service time and the energy consumption of the cabinet air conditioner are effectively reduced.
In order to solve the above problems, an embodiment of the present invention provides a 5G base station integrated cabinet with a self-cleaning maintenance-free fresh air cooling function, including a cabinet body, where the cabinet body is configured with an air intake system and an air exhaust system, a charging device and a dust collecting device are arranged on the cabinet body, and the dust collecting device is configured with a self-cleaning device.
Further, an air conditioner is further arranged in the cabinet body.
Furthermore, the air inlet of the air inlet system is independent of the air inlet of the condenser of the air conditioner.
Furthermore, the air inlet of the air inlet system and the air inlet of the condenser of the air conditioner are the same air inlet, after outdoor air is introduced into the cabinet body from the same air inlet, the outdoor air is respectively connected with the condenser of the air conditioner and the air inlet system through two branch pipelines, and an electric air valve is arranged on the branch pipeline leading to the condenser of the air conditioner; an electric air valve is also arranged on a branch pipeline leading to the air inlet system.
Furthermore, an air inlet cover is arranged at the air inlet end of the air inlet system.
Furthermore, an exhaust hood, a shutter or an exhaust fan is arranged at the exhaust end of the exhaust system.
Further, the dust collecting device comprises a belt-shaped part with conductivity, wherein the belt-shaped part is wound into a disc-shaped structure, and a gap for air circulation is formed in the disc-shaped structure; or the dust collecting device comprises a plurality of strip-shaped components which are arranged in parallel, and gaps for air circulation are formed between the adjacent strip-shaped components;
the self-cleaning device comprises:
an element projecting into said void to act on said strap-like member;
the dust collection system and/or the air injection system are arranged on one side or two sides of the dust collection device and are used for sucking the objects to be cleaned attached to the belt-shaped component; the air injection system is arranged at one side of the dust collecting device and used for injecting air to the belt-shaped component so as to enable the object to be cleaned attached to the belt-shaped component to fall off.
Further, the cabinet is also provided with an indoor and outdoor temperature and humidity sensor and/or an indoor and outdoor particulate matter sensor.
On the other hand, an embodiment of the present invention further provides a control method for the above 5G base station integrated cabinet, where the control method includes the following steps: under the preset condition, a fresh air system composed of an air inlet system and an air exhaust system is controlled to start, and the interior of the cabinet is naturally cooled.
Further, an air conditioner is arranged in the cabinet, and the method further comprises the following steps: s1: detecting whether the indoor temperature is lower than the preset air conditioner closing temperature, if not, maintaining the current situation, and if so, closing the air conditioner;
s2: detecting whether the indoor temperature is lower than the preset closing temperature of the fresh air system, if not, entering the step S3, if so, detecting whether the fresh air system is working, if so, closing the fresh air system, if not, utilizing the enclosure structure of the base station to dissipate heat,
s3: detecting whether the indoor temperature is between a preset fresh air closing temperature and a preset fresh air starting temperature, if not, entering a step S4, if so, detecting whether the indoor and outdoor temperature difference exceeds a preset temperature difference degree lower limit, if not, utilizing the enclosure structure of the base station to dissipate heat, if so, detecting whether the outdoor temperature exceeds a preset outdoor temperature alarm lower limit, if not, utilizing the enclosure structure of the base station to dissipate heat, and if so, maintaining the current situation;
s4: detecting whether the indoor temperature is between a preset fresh air starting temperature and a preset air conditioner closing temperature, if not, entering a step S5, if so, detecting whether the indoor and outdoor temperature difference exceeds a preset temperature difference degree lower limit, if not, utilizing the base station enclosure structure for heat dissipation, if so, detecting whether the outdoor temperature exceeds a preset outdoor temperature alarm lower limit, if not, utilizing the base station enclosure structure for heat dissipation, if so, detecting whether the fresh air system is working, and if not, starting the fresh air system;
s5: detecting whether the indoor temperature is between a preset air conditioner closing temperature and a preset air conditioner starting temperature, if not, entering a step S6, if so, detecting whether the fresh air system works, and if not, starting the fresh air system;
s6: detecting whether the indoor temperature exceeds a preset indoor temperature alarm upper limit, if so, alarming at high temperature to start the air conditioner, detecting whether a fresh air system works, if not, starting the fresh air system, if so, detecting whether the indoor and outdoor temperature difference exceeds a preset temperature difference degree lower limit, if so, sending a cooling abnormity alarm, and if not, continuing to use the fresh air system.
Compared with the prior art, the invention has the following beneficial effects: the unique self-cleaning maintenance-free function can make full use of outdoor fresh air to intelligently cool the cabinet. The service life of the cabinet air conditioner is effectively shortened, the service life of the cabinet air conditioner is prolonged, the power consumption generated by cooling the cabinet air conditioner is greatly reduced, and the PUE (Power UsagEffective) value of the 5G base station is reduced; the problems that an air inlet is easy to block, a filter is easy to block, the maintainability is poor, the maintenance cost is high, the failure rate is high and the like when the fresh air equipment utilizing the filtering type purification technology cools the cabinet are solved; the outdoor natural cold air can be utilized to the utmost extent by the unique control system, and the unique self-cleaning system can automatically clean the poplar and willow catkins, mosquitoes, particles and the like adsorbed on the filter element, so that the manual maintenance is avoided, the filter element is waterproof and moistureproof, can be cleaned regularly, and can be reused.
The cabinet body is cooled by introducing a large amount of outdoor fresh air, so that the air conditioner is replaced to operate in most of time; along with the development of battery technique, the battery will have higher tolerance temperature to can all carry out the rack cooling with the new trend, replace the air conditioner completely, effectively reduce the power consumption of 5G rack more.
Drawings
Fig. 1 is a schematic structural diagram of a 5G base station integrated cabinet with a self-cleaning maintenance-free fresh air cooling function according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a 5G base station integrated cabinet with a self-cleaning maintenance-free fresh air cooling function according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of a 5G base station integrated cabinet with a self-cleaning maintenance-free fresh air cooling function according to another embodiment of the present invention;
fig. 4 is a schematic structural diagram of a 5G base station integrated cabinet with a self-cleaning maintenance-free fresh air cooling function according to another embodiment of the present invention;
fig. 5 is a schematic structural diagram of a 5G base station integrated cabinet with a self-cleaning maintenance-free fresh air cooling function according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of a 5G base station integrated cabinet with a self-cleaning maintenance-free fresh air cooling function according to another embodiment of the present invention;
fig. 7 is a schematic diagram of an electric control structure of a 5G base station integrated cabinet with a self-cleaning maintenance-free fresh air cooling function according to an embodiment of the present invention;
fig. 8 is a flowchart of a control method of a 5G base station integrated cabinet with a self-cleaning maintenance-free fresh air cooling function according to an embodiment of the present invention;
FIG. 9 is a schematic view of a dust collector in the cabinet;
FIG. 10 is a schematic view of the self-cleaning apparatus adapted to the dust collector of FIG. 9;
FIG. 11 is a schematic view of another dust collecting apparatus in the cabinet;
FIG. 12 is a schematic view of the self-cleaning apparatus adapted to the dust collector of FIG. 11;
in the figure: 1-air inlet of air conditioner condenser; 2-air conditioner condenser air outlet; 3, air inlets of an air conditioner and an air inlet system; 41. 42-an electric air valve; 5-air inlet cover; 6-cabinet base; 7-an exhaust hood; 8-a cabinet body; 9-a dust collecting device; 91-a strap-like member; 10-scraping blade; 11-a suction nozzle; 12-a nozzle; 13-a connecting tube; 14-a draught fan; 15-dust bag; 16-air outlet; 17-a power telescopic rod; 18-telescoping tubes; 19-a nozzle; 20-nozzle connecting pipe; 21-gas source; 22-dust suction pipe; 23-central part.
Detailed Description
The principles and spirit of the present invention will be described with reference to a number of exemplary embodiments shown in the drawings. It should be understood that these embodiments are described only to enable those skilled in the art to better understand and to implement the present invention, and are not intended to limit the scope of the present invention in any way.
Referring to fig. 1-3, an embodiment of the present invention provides a 5G base station integrated cabinet with a self-cleaning maintenance-free fresh air cooling function, including a cabinet body 8, where the whole cabinet body 8 is disposed on a cabinet base 6. The cabinet is also provided with an air inlet system and an air exhaust system for fresh air ventilation, and can play a role in natural cooling and energy consumption reduction. Preferably, in conjunction with fig. 4-6, an air conditioner is further provided inside the cabinet to cool the inside of the cabinet.
The air conditioner may include various types, such as a line-to-line air conditioner.
An air conditioner includes an indoor unit (evaporator) and an outdoor unit (condenser). In some embodiments, both the air conditioner condenser intake vent 1 and the air conditioner condenser outlet vent 2 are also disposed on the cabinet 8. The air inlet of the air inlet system and the air inlet of the air-conditioning condenser are two independent air inlets (as shown in fig. 5).
In other embodiments, the air inlet of the air intake system and the air inlet of the air conditioner are the same air inlet (as shown in fig. 6, the air inlet 3 of the air conditioner and the air intake system), and after the air is introduced from the outside of the cabinet 8, the air conditioner and the air intake system are respectively connected by two branch pipelines, wherein an electric air valve 41 is arranged on the branch pipeline leading to the air intake system, an electric air valve 42 is arranged on the branch pipeline leading to the condenser of the air conditioner, and the opening and closing of the air intake system and the air exhaust system can be controlled by controlling the electric air valve 41. The electric air valve 42 is controlled to control the opening and closing of the air conditioner.
Typically, the air intake system is generally disposed in a lower portion of the cabinet 8, such as in a bottom portion of the cabinet or a side (as shown in fig. 1 and 2) or bottom (as shown in fig. 3) portion of the lower portion of the cabinet. The corresponding air inlet is generally arranged at the bottom of the cabinet or at the side surface of the lower part of the cabinet. The air inlet of the air inlet system has a waterproof function. For example, a water flood detector may be disposed at the bottom of the cabinet for monitoring the flooding of the cabinet and the occurrence of a water flood. When the water flooding condition is detected, the detector transmits a signal to the cabinet central control system, the cabinet central control system sends cabinet flooding alarm information and closes the air inlet system and the air exhaust system, the air inlet is closed, a rain baffle plate can be additionally arranged at the air inlet, the air inlet is automatically closed when the water flooding condition is detected, and the rain baffle plate is provided with a sealing material, so that rainwater can be well prevented from entering the air inlet; if the air inlet is provided with the electric air valve, sealing materials can be additionally arranged on the blades of the electric air valve, and rainwater can be prevented from entering the air inlet in a closed state; the air inlet can be provided with a valve, and when the water flooding is detected, the valve is automatically closed to prevent rainwater from entering the cabinet body.
The water immersion detector can adopt a contact type water immersion detector or a non-contact type water immersion detector.
The contact type water immersion detector detects by utilizing the liquid conduction principle. The two-pole probe is insulated by air in normal time; the probe is conducted in a water immersion state, and the sensor outputs a dry contact signal. When the probe is immersed in water to a height of about 1 mm, an alarm signal is generated. The product adopts a hanging weight design, and is convenient to deploy.
The non-contact water immersion detector detects by using the refraction and reflection principles of light on different medium sections. The LED and the photoelectric receiver are arranged in the plastic hemisphere, and when the detector is arranged in the air, most of LED photons are received by the photoelectric receiver due to total reflection; when approaching the hemispherical surface, the LED photons received by the photoreceiver will decrease due to the refraction of the light, and the output will also change. Is suitable for being deployed at the leakage site of general corrosion conductive liquid.
The exhaust system and the air inlet system are arranged oppositely and positioned at the upper part of the other side of the cabinet body 8, so that the flowing rule of air in the cabinet is met. An air inlet cover 5 can be arranged on the air inlet end of the air inlet system, and the air inlet cover 5 can also be replaced by a shutter mode. An exhaust hood 7 can be arranged at the exhaust end of the exhaust system, and the exhaust hood 7 can be replaced by a shutter or an exhaust fan.
As previously mentioned, the exhaust system is typically located in the upper portion of the cabinet, such as at the top of the cabinet or on the side of the upper portion of the cabinet. The corresponding air outlet can be arranged on the top of the cabinet or on the side surface of the lower part of the cabinet.
Similar to the air inlet, the air outlet of the air exhaust system also has a waterproof function. The waterproof function can also be realized by adopting the contact type water immersion detector or the non-contact type water immersion detector.
Furthermore, a smoke detector is arranged at the upper part of the cabinet, monitors the extreme conditions of fire and the like of the cabinet, and is in communication connection with a central control system of the cabinet.
Furthermore, the cabinet is also provided with an inclination detector for monitoring the inclination and the falling of the cabinet and sending out alarm information.
In summary, the electric control system in the cabinet mainly includes a temperature control system (temperature and humidity sensor), an illumination unit, a monitoring system (water immersion detector, smoke detector, tilt detector), a lightning protection system, a power distribution system, a power supply system, an access control system, and the like.
The cabinet is also internally provided with a dust collecting device (also called a filter element) which is used for collecting particulate matters such as dust, mosquitoes and the like carried in the air flowing through the cabinet, the particulate matters become objects to be cleaned after being enriched on the dust collecting device, and if the objects are not cleaned in time, the normal work of an air inlet system, an air exhaust system and an air conditioner can be influenced. Therefore, the embodiment of the invention provides the self-cleaning device for the dust collecting device, and can automatically clean the objects to be cleaned on the dust collecting device, thereby realizing the maintenance-free function.
Referring to fig. 9, the dust collecting device 9 is formed by arranging the belt-like members 91 in a regular pattern. In some embodiments, the dust collecting device 9 may be a disk-shaped structure formed by winding at least one strip member 91 around the central member 23, and a gap is left between adjacent turns of the strip member for air to flow through. In other embodiments, as shown in fig. 11, the dust collecting device 9 may include a plurality of strip members 91, the strip members 91 are arranged in parallel and spaced apart, and a gap for air to flow through is formed between two adjacent strip members 91. Air entering from the air inlet system flows through the gap and is exhausted from the exhaust system, and particulate matters in the air are enriched on the belt-shaped member 91. The belt-shaped member 91 may be an electrode member, and may better collect particles such as dust by using an electrostatic effect after being electrified.
The belt-like member 91 is made of a material having conductivity, such as a metal or a semiconductor material having conductivity. For example, in some embodiments, the belt member 91 includes a substrate made of a semiconductor flame retardant polymer material or a PET substrate, and a material having electrical conductivity, such as conductive ink, graphene, or graphite, is disposed in the substrate.
The charging device is arranged at the windward side of the dust collecting device, and can adopt an ionization wire to ionize particles in the air entering the cabinet body so as to enable the particles to be charged positively or negatively, and further be adsorbed by the conductive strip-shaped component 91.
If a disc-like construction of the dust collecting device is used, the self-cleaning device may comprise a set of elements which extend between two adjacent turns of the strip-shaped member. The self-cleaning device further comprises a suction nozzle and/or a nozzle arranged at one side of the dust collecting device for sucking in dust and/or blowing off dust. The suction nozzle and the nozzle are provided with corresponding pipe systems. The dust collecting device 9 can be driven by a motor to rotate, and the related pipelines of the scraping blades, the suction nozzles or the nozzles are cleaned along the surface of the belt-shaped component along with the rotation of the dust collecting device 9.
For example, in one embodiment, as shown in fig. 10, the self-cleaning device includes a pair of blades 10 which protrude into a gap of the belt-like member of the dust collecting device 9 to act on the surface of the belt-like member. A nozzle 19 is further provided at one side of the dust collecting device 9, and the nozzle 19 is connected to an air source 21 through a nozzle connecting pipe 20 for blowing off dust on the belt-shaped member. The other side of the dust collecting device 9 is further provided with a dust suction pipe member 22, and the dust suction pipe member 22 is connected with the dust collection bag 15 and is used for sucking away dust cleaned from the dust collecting device 9.
If a parallel arrangement of strip-shaped parts is used to form the dust collecting device, the self-cleaning device may comprise a set of elements which extend between two adjacent pole elements. The self-cleaning system further comprises suction nozzles and/or spray nozzles arranged at one side of the dust collecting device 9 for sucking in dust and/or blowing off dust. The suction nozzle and the nozzle are provided with corresponding pipe systems. The associated conduit of the wiper blade, suction nozzle or nozzle is reciprocated along the pole piece of the dust collecting device 9 for cleaning along the surface of the pole piece.
For example, in one embodiment, as shown in fig. 12, the self-cleaning device includes suction nozzles 11 provided at one side of each of the belt-like members, and each suction nozzle 11 has a wiper blade 10 therein, which protrudes into a space between the belt-like members. The suction nozzles 11 are connected together through a connecting pipe 13, the other end of the connecting pipe 13 is provided with a telescopic sleeve 18, and the tail end of the telescopic sleeve is sequentially connected with a dust collecting bag 15, an induced draft fan 14 and an air outlet 16. The power expansion rod 17 is connected to the connection pipe 13, and drives each suction nozzle 11 to reciprocate along the belt-shaped member, thereby sucking dust into the dust collection bag 15. A nozzle 12 may also be provided in the suction nozzle 11 for blowing off some of the dust accumulated on the belt-like member.
With reference to fig. 8, the control method of the integrated cabinet is as follows:
s1: detecting whether the indoor temperature is lower than the preset air conditioner closing temperature, if not, maintaining the current situation, and if so, closing the air conditioner;
s2: detecting whether the indoor temperature is lower than the preset closing temperature of the fresh air system, if not, entering the step S3, if so, detecting whether the fresh air system is working, if so, closing the fresh air system, if not, utilizing the enclosure structure of the base station to dissipate heat,
s3: detecting whether the indoor temperature is between a preset fresh air closing temperature and a preset fresh air starting temperature, if not, entering a step S4, if so, detecting whether the indoor and outdoor temperature difference exceeds a preset temperature difference degree lower limit, if not, utilizing the enclosure structure of the base station to dissipate heat, if so, detecting whether the outdoor temperature exceeds a preset outdoor temperature alarm lower limit, if not, utilizing the enclosure structure of the base station to dissipate heat, and if so, maintaining the current situation;
s4: detecting whether the indoor temperature is between a preset fresh air starting temperature and a preset air conditioner closing temperature, if not, entering a step S5, if so, detecting whether the indoor and outdoor temperature difference exceeds a preset temperature difference degree lower limit, if not, utilizing a base station enclosure structure for heat dissipation, if so, detecting whether the outdoor temperature exceeds a preset outdoor temperature alarm lower limit, if not, utilizing the base station enclosure structure for heat dissipation, if so, detecting whether a fresh air system works, if not, starting the fresh air system, and if so, continuing to keep;
s5: detecting whether the indoor temperature is between a preset air conditioner closing temperature and a preset air conditioner starting temperature, if not, entering a step S6, if so, detecting whether the fresh air system works, if not, starting the fresh air system, and if so, continuing to keep;
s6: detecting whether the indoor temperature exceeds a preset indoor temperature alarm upper limit, if so, alarming at high temperature to start the air conditioner, detecting whether a fresh air system works, if not, starting the fresh air system, if so, detecting whether the indoor and outdoor temperature difference exceeds a preset temperature difference degree lower limit, if so, sending a cooling abnormity alarm, and if not, continuing to use the fresh air system.
The meaning of the parameters in fig. 8 is:
the upper limit of EHin: the upper limit of indoor humidity alarm is defaulted to 85%;
t lower limit of fresh air: the fresh air closing temperature is 24 ℃ by default;
t lower limit of air conditioner: the air conditioner closing temperature is 30 ℃ by default;
t upper fresh air limit: the fresh air starting temperature is 28 ℃ in default;
t, upper limit of air conditioner: the starting temperature of an air conditioner is 35 ℃ by default;
ETin upper limit: the upper limit of indoor temperature alarm is 35 ℃ by default;
lower limit of Δ T: the lower limit of the temperature difference degree is defaulted to 2 ℃;
ETout lower limit: alarming to reduce the outdoor temperature, and defaulting to 5 ℃;
of course, the above parameters are only exemplary, and the specific values can be flexibly adjusted.
Furthermore, the linkage between the air conditioner and the air inlet system and the air exhaust system can be controlled in a enthalpy value detection mode. For example, according to the acquired enthalpy values of the air inside and outside the cabinet (i.e., fresh air), if the enthalpy value of the air outside the cabinet (i.e., fresh air) is within the enthalpy value range set by the control system, and under the condition that other opening environmental parameters (indoor temperature, indoor relative humidity and the like) are met, the air inlet system and the air exhaust system are opened at the moment, and the operation of the cabinet air conditioner (compressor) is closed;
if the enthalpy calculated by the enthalpy-humidity diagram is not in the air supply enthalpy range set by the control system, even if other opening environment parameters (indoor temperature, indoor relative humidity and the like) are met, the air inlet system and the air exhaust system are closed, and the machine room air conditioner performs corresponding opening operation or closing operation according to the temperature and relative humidity requirements set in the machine room.
The inventive concept is explained in detail herein using specific examples, which are given only to aid in understanding the core concepts of the invention. It should be understood that any obvious modifications, equivalents and other improvements made by those skilled in the art without departing from the spirit of the present invention are included in the scope of the present invention.
Claims (10)
1. The utility model provides a 5G basic station integration rack with automatically cleaning non-maintaining new trend cooling function, includes the cabinet body, its characterized in that, the cabinet body disposes air inlet system and exhaust system, and lotus electric installation and dust collecting device set up on the cabinet body, dust collecting device disposes self-cleaning device.
2. The 5G base station integrated cabinet according to claim 1, wherein an air conditioner is further arranged in the cabinet body.
3. The 5G base station integrated cabinet of claim 2, wherein the air inlet of the air inlet system is independent of the air inlet of the condenser of the air conditioner.
4. The 5G base station integrated cabinet according to claim 2, wherein the air inlet of the air inlet system and the air inlet of the condenser of the air conditioner are the same air inlet, outdoor air is introduced into the cabinet body from the same air inlet and then is respectively connected with the condenser of the air conditioner and the air inlet system through two branch pipelines, and an electric air valve is arranged on a branch pipeline leading to the condenser of the air conditioner; an electric air valve is also arranged on a branch pipeline leading to the air inlet system.
5. The 5G base station integrated cabinet of claim 1, wherein an air inlet end of the air inlet system is provided with an air inlet cover.
6. The 5G base station integrated cabinet according to claim 1, wherein an exhaust end of the exhaust system is provided with an exhaust hood, a louver or an exhaust fan.
7. The 5G base station integrated cabinet according to claim 1, wherein the dust collecting device comprises a conductive belt-shaped member wound into a disk-shaped structure having a gap for air to flow through; or the dust collecting device comprises a plurality of strip-shaped components which are arranged in parallel, and gaps for air circulation are formed between the adjacent strip-shaped components;
the self-cleaning device comprises:
an element projecting into said void to act on said strap-like member;
the dust collection system and/or the air injection system are arranged on one side or two sides of the dust collection device and are used for sucking the objects to be cleaned attached to the belt-shaped component; the air injection system is arranged at one side of the dust collecting device and used for injecting air to the belt-shaped component so as to enable the object to be cleaned attached to the belt-shaped component to fall off.
8. The 5G base station integrated cabinet according to claim 7, wherein the cabinet is further provided with an indoor and outdoor temperature and humidity sensor and/or an indoor and outdoor particulate matter sensor.
9. The control method of the 5G base station integrated cabinet of any one of claims 1 to 8, comprising the following steps: under the preset condition, a fresh air system composed of an air inlet system and an air exhaust system is controlled to start, and the interior of the cabinet is naturally cooled.
10. The control method according to claim 9, wherein an air conditioner is further provided in the cabinet, and the control method further comprises the steps of:
s1: detecting whether the indoor temperature is lower than the preset air conditioner closing temperature, if not, maintaining the current situation, and if so, closing the air conditioner;
s2: detecting whether the indoor temperature is lower than the preset closing temperature of the fresh air system, if not, entering the step S3, if so, detecting whether the fresh air system is working, if so, closing the fresh air system, if not, utilizing the enclosure structure of the base station to dissipate heat,
s3: detecting whether the indoor temperature is between a preset fresh air closing temperature and a preset fresh air starting temperature, if not, entering a step S4, if so, detecting whether the indoor and outdoor temperature difference exceeds a preset temperature difference degree lower limit, if not, utilizing the enclosure structure of the base station to dissipate heat, if so, detecting whether the outdoor temperature exceeds a preset outdoor temperature alarm lower limit, if not, utilizing the enclosure structure of the base station to dissipate heat, and if so, maintaining the current situation;
s4: detecting whether the indoor temperature is between a preset fresh air starting temperature and a preset air conditioner closing temperature, if not, entering a step S5, if so, detecting whether the indoor and outdoor temperature difference exceeds a preset temperature difference degree lower limit, if not, utilizing the base station enclosure structure for heat dissipation, if so, detecting whether the outdoor temperature exceeds a preset outdoor temperature alarm lower limit, if not, utilizing the base station enclosure structure for heat dissipation, if so, detecting whether the fresh air system is working, and if not, starting the fresh air system;
s5: detecting whether the indoor temperature is between a preset air conditioner closing temperature and a preset air conditioner starting temperature, if not, entering a step S6, if so, detecting whether the fresh air system works, and if not, starting the fresh air system;
s6: detecting whether the indoor temperature exceeds a preset indoor temperature alarm upper limit, if so, alarming at high temperature to start the air conditioner, detecting whether a fresh air system works, if not, starting the fresh air system, if so, detecting whether the indoor and outdoor temperature difference exceeds a preset temperature difference degree lower limit, if so, sending a cooling abnormity alarm, and if not, continuing to use the fresh air system.
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| CN202011074621.6A CN112153874A (en) | 2020-10-09 | 2020-10-09 | 5G base station integrated cabinet with self-cleaning maintenance-free fresh air cooling function and control method |
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| CN202011074621.6A CN112153874A (en) | 2020-10-09 | 2020-10-09 | 5G base station integrated cabinet with self-cleaning maintenance-free fresh air cooling function and control method |
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Cited By (1)
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Application publication date: 20201229 |