CN216058077U

CN216058077U - Heat management transformation system based on multi-connected cabinet communication base station

Info

Publication number: CN216058077U
Application number: CN202122476993.8U
Authority: CN
Inventors: 孙楹; 金博; 白静; 崔四齐; 秦闯
Original assignee: Henan New Network Element Communication Technology Co ltd; Zhongyuan University of Technology
Current assignee: Henan New Network Element Communication Technology Co ltd; Zhongyuan University of Technology
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-03-15
Anticipated expiration: 2031-10-14

Abstract

The utility model provides a multi-connected communication base station based thermal management transformation system, which is used for solving the technical problems of large air conditioner load, high energy consumption, disordered airflow organization and overproof dust cleanliness in the existing communication base station. According to the utility model, the integrated energy-saving air-conditioning subsystem, the air pipe subsystem and the control subsystem are reasonably designed in the equipment integration box of the multi-connected cabinet communication base station, so that the closed-loop circulation of a refrigerant in the integrated energy-saving air-conditioning subsystem and the air system circulation of the air pipe system are realized, the optimized control subsystem controls the integrated energy-saving air-conditioning subsystem to work in real time according to the temperature change of the multi-connected cabinet communication base station, the effective combination of air-conditioning cooling and heat pipe cooling is realized through the air pipe subsystem, the adjusting speed is high, the load is small, the energy efficiency is low, and the problem that the cleanliness exceeds the standard is effectively solved through closed circulation, so that the operation and the heat dissipation of equipment are facilitated.

Description

Heat management transformation system based on multi-connected cabinet communication base station

Technical Field

The utility model relates to the technical field of communication base station heat management, in particular to a multi-connected cabinet communication base station heat management transformation system.

Background

In recent years, the communication industry in China is rapidly developed, particularly, the number of mobile communication base stations is continuously increased when the 5G era comes, and the consumption of electric power resources by a base station air conditioning system is huge, so that how to solve the defects of the existing mobile communication base station air conditioning system becomes a hot point of attention in the field of base station communication. In this context, a system for thermal management modification of a communication base station is provided.

At present, the air conditioning system of the communication base station has four common forms: adopts an air-conditioning cooling system, adopts a heat pipe technology and adopts natural ventilation. However, the air conditioning systems of the communication base stations in the forms have many problems which need to be improved and solved urgently.

Firstly, the base station cooled by the air conditioner has the disadvantages of excessive air conditioner load and excessive energy consumption due to the increase of equipment and power increase. After the Chinese iron tower company completes integration and station sharing of three operator base stations, the number of main devices (mainly 4G and 5G devices) in the mobile communication base station is increased, particularly the number of 5G communication devices (BBU) is more, and the power consumption is larger (3-6 times of 4G), so that the heat productivity of the devices is greatly increased, the refrigerating capacity of the original base station air conditioning system cannot meet the requirement of the cold load in the current base station, the compressor in the air conditioning system runs for a long time, the natural aging speed of the compressor is accelerated, the service efficiency and the service life of the compressor are reduced, and the energy consumption of the compressor is increased;

and secondly, the base station naturally cooled by the heat pipes is adopted, so that indoor overheating is caused due to the increase of equipment, and the equipment alarms at high temperature. Meanwhile, when the mobile communication base station runs at high temperature in summer, the mobile communication base station is independently cooled by the heat pipe, and the fault of station drop frequently occurs in summer, because the working efficiency of the heat pipe heat exchanger depends on the temperature difference between the inside and the outside environment of the base station, and the air supply temperature of the inside of the base station passing through the cold end of the heat pipe is higher than the outside environment (generally higher than 4 ℃), therefore, in hot summer with the temperature of more than 30 ℃, the mobile communication base station naturally cooled by the heat pipe cannot meet the cold load requirement in the base station.

Thirdly, the existing base station has numerous equipment models and specifications and inconsistent heat dissipation channels, which causes disordered airflow organization of the base station and is not beneficial to heat dissipation. When different manufacturer equipment is mixed and deployed in a base station, overall airflow organization in the base station is disordered, airflow short circuit circulation (mixed flow of cold and hot air), uneven temperature field and local overheating phenomena are easily generated, the refrigerating capacity of an air conditioner is wasted, and the energy consumption is increased. Especially, on the premise that the area of the original base station is not expanded, 5G BBU equipment is added, and due to the limitation of space, the equipment in the base station is placed too densely, so that the heat exchange effect of BBU airflow is seriously influenced.

Fourthly, some existing base stations are additionally provided with natural ventilation systems, so that the cleanliness in the base stations seriously exceeds the standard. Its reason is behind the basic station installs the exhaust fan additional, leads to the inside negative pressure that is of basic station cupboard, and outside atmospheric pressure is higher than basic station internal gas pressure promptly, inside a large amount of outside dusts got into basic station through the gap of basic station door or cupboard, in addition equipment during operation can produce high pressure and static, has caused the interior dust cleanliness factor of basic station seriously to exceed standard, influences the normal work of circuit, serious can burn out power, mainboard and other equipment parts even.

Therefore, it is very necessary to provide a system for improving thermal management of a communication base station to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problems of large air conditioner load, high energy consumption, disordered airflow organization and overproof dust cleanliness in the existing communication base station cabinet, the utility model provides a heat management transformation system based on a multi-connected cabinet communication base station, an integrated energy-saving air-conditioning subsystem, an air pipe subsystem and a control subsystem are reasonably designed in an equipment integration box of the multi-connected cabinet communication base station, so that closed-loop circulation of refrigerant in the integrated energy-saving air-conditioning subsystem and air system circulation of an air pipe system are realized, the optimized control subsystem controls the integrated energy-saving air-conditioning subsystem to work in real time according to the temperature change of the multi-connected cabinet communication base station, the air pipe subsystem realizes the effective combination of air conditioning cooling and heat pipe cooling, has high regulation speed, small load and low energy efficiency, and the closed circulation effectively solves the problem that the dust cleanliness exceeds the standard, and is beneficial to the operation and heat dissipation of equipment.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

the utility model provides a thermal management transformation system based on many communication base stations of linking together, including many communication base station cabinets that link together, the equipment integration box, energy-saving air conditioner subsystem integrates, air pipe subsystem and control subsystem, the equipment integration box is installed and is linked together at many communication base station cabinets that link together, the one end of energy-saving air conditioner subsystem integrates is located the inside of equipment integration box, the other end of energy-saving air conditioner subsystem integrates stretches out the upper end of equipment integration box and installs on the equipment integration box, the one end of air pipe subsystem is located the inside of equipment integration box, the other end of air pipe subsystem stretches out the equipment integration box and is linked together with many communication base station cabinets that link together, the one end of control subsystem is installed in the equipment integration box, control subsystem's the other end is connected with energy-saving air conditioner subsystem and air pipe system respectively.

Further, it includes refrigerant closed circulation unit to integrate energy-saving air conditioner subsystem, the condensation fan, heat pipe and heat pipe cold junction fan, refrigerant closed circulation unit and condensation fan all are located equipment integrated incasement portion, the condensation fan is located one side of refrigerant closed circulation unit and is linked together with refrigerant closed circulation unit, the both sides of refrigerant closed circulation unit all are linked together with many communication base station cabinets of company through the tuber pipe subsystem, the hot junction of heat pipe is located equipment integrated incasement portion and is located between refrigerant closed circulation unit and the tuber pipe system, the cold junction of heat pipe is located the top of equipment integrated case, heat pipe cold junction fan is located one side of the cold junction of heat pipe and is linked together with the cold junction of heat pipe, condensation fan and heat pipe cold junction fan all are connected with control subsystem.

Furthermore, the refrigerant closed circulation unit comprises a refrigeration compressor, a condenser, a liquid storage device, a drying filter, an expansion valve, an evaporator and a gas-liquid separator, wherein the refrigeration compressor, the condenser, the liquid storage device, the drying filter, the expansion valve, the evaporator and the gas-liquid separator are sequentially communicated, the gas-liquid separator is communicated with the refrigeration compressor, a condensing fan is positioned on one side of the condenser, two sides of the evaporator are communicated with the multi-connected cabinet communication base station cabinet through air pipe subsystems, and the hot end of a heat pipe is positioned between the evaporator and the air pipe systems.

Furthermore, the air pipe subsystem comprises a pipeline fan, a filtering dust screen, an air supply duct and an air return duct, the pipeline fan extends out of the equipment integration box through the air supply duct and is communicated with the multi-unit cabinet communication base station cabinet, the multi-unit cabinet communication base station cabinet is communicated with the position of the filtering dust screen in the equipment integration box through the air return duct, the filtering dust screen, the hot end of the heat pipe, the evaporator and the pipeline fan are sequentially arranged, and the pipeline fan is communicated with the evaporator.

Furthermore, a louver air port is arranged on the equipment integration box and corresponds to a condenser of the integrated energy-saving air conditioning subsystem, and the multi-connected cabinet communication base station cabinet is a two-connected cabinet equipment cabinet or a three-connected cabinet equipment cabinet.

Furthermore, the control subsystem comprises a temperature sensor and a regulator, the temperature sensor is installed in the return air duct, and the regulator is respectively connected with the refrigeration compressor, the condensation fan, the heat pipe cold end fan, the pipeline fan and the temperature sensor.

Furthermore, the condensing fan and the heat pipe cold end fan are respectively any one of a variable frequency fan, a fixed frequency fan and a gear shifting fan, and the heat pipe is any one of a cored heat pipe, a two-phase closed thermosiphon, a gravity-assisted heat pipe, a rotary heat pipe, an electrohydrodynamic heat pipe, a magnetohydrodynamic heat pipe and a penetration heat pipe.

Furthermore, the condenser and the evaporator are respectively any one of a finned tube heat exchanger, a stacked heat exchanger and a parallel flow heat exchanger, the pipeline fan is any one of a variable frequency fan, a fixed frequency fan and a gear shifting fan, and the expansion valve is any one of a manual expansion valve, a choke flow expansion valve, a thermostatic expansion valve and an electronic expansion valve.

Furthermore, the equipment integration box is arranged at the top or the side of the multi-connected cabinet communication base station cabinet, and the air supply duct and the air return duct are respectively arranged at the lower part and the upper part of the back of the multi-connected cabinet communication base station cabinet. The utility model has the beneficial effects that:

1. the utility model adopts the design of a one-driving-more integrated energy-saving air conditioning system, and the equipment is integrated in a box body and uniformly arranged at the top or the side of the cabinet, thereby having beautiful appearance and low noise.

2. According to the utility model, an air supply mode of downward feeding and upward returning of an external air duct is adopted, the air flow organization in the cabinet is optimized, cold and hot partitions of air flow in the cabinet are formed, the temperature in the equipment cabinet is effectively controlled to be between 5 and 40 ℃, the temperature of the battery cabinet is controlled to be between 15 and 30 ℃, the temperature range specified by the national GB/T51216-2017 mobile communication base station engineering energy-saving technical standard is met, and the local high-temperature alarm phenomenon of equipment can not occur.

3. The utility model adopts the heat pipe technology and the intelligent control technology, only adopts the heat pipe heat exchanger to cool when the load in the cabinet is smaller, and simultaneously starts the heat pipe heat exchanger and the refrigerating unit to cool when the load in the cabinet is larger, thereby greatly reducing the operation time of the refrigerating compressor, prolonging the service life of the refrigerating compressor, having obvious energy-saving effect, and compared with the original door type air conditioning system of a triple cabinet positioned at a certain place in Zhengzhou city, the energy-saving rate of the annual operation cost of the improved system reaches 58 percent according to field measurement.

4. Because the air system of the utility model adopts closed circulation, the problem that the cleanliness in the base station seriously exceeds the standard due to the addition of a natural ventilation system in some existing base stations is solved, and the air system is favorable for the operation and heat dissipation of equipment in a cabinet.

5. The utility model is beneficial to realizing the targets of carbon peak reaching and carbon neutralization before 2030 years and 2060 years in China, accords with the recommendation catalogue of national communication industry energy-saving technology products in 2021 years, and can be widely popularized in multi-cabinet communication base station cabinets adopting traditional door type air conditioning systems.

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 diagram of the operation of the system of the present invention.

Fig. 2 is a three-view diagram of the system structure of the present invention, wherein (a) is a rear view, (b) is a left view, and (c) is a top view.

FIG. 3 is a top sectional view of the integration box of the apparatus of the present invention.

In the figure, 1-a refrigeration compressor, 2-a condenser, 3-a condensing fan, 4-a liquid storage device, 5-a drying filter, 6-an expansion valve, 7-an evaporator, 8-a gas-liquid separator, 9-a heat pipe, 10-a heat pipe cold end fan, 11-an equipment integration box, 12-a pipeline fan, 13-a filtering dust screen, 14-an air supply duct, 15-an air return duct, 16-a temperature sensor and 17-a regulator.

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 obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

A heat management transformation system based on a multi-connected cabinet communication base station comprises a multi-connected cabinet communication base station cabinet, an equipment integration box 11, an integrated energy-saving air conditioning subsystem, an air duct subsystem and a control subsystem, as shown in fig. 2, the device integration box 11 is installed on a multi-connected cabinet communication base station cabinet, as shown in fig. 1, one end of the integrated energy-saving air-conditioning subsystem is located inside the device integration box 11, the other end of the integrated energy-saving air-conditioning subsystem extends out of the upper end of the device integration box 11 and is installed on the device integration box 11, one end of the air duct subsystem is located inside the device integration box 11, the other end of the air duct subsystem extends out of the device integration box 11 and is communicated with the multi-connected cabinet communication base station cabinet, one end of the control subsystem is installed in the device integration box 11, and the other end of the control subsystem is connected with the integrated energy-saving air-conditioning subsystem and the air duct system respectively.

Specifically speaking, as shown in fig. 1, the integrated energy-saving air conditioning subsystem includes a refrigerant closed circulation unit, a condensing fan 3, a heat pipe 9 and a heat pipe cold end fan 10, the refrigerant closed circulation unit and the condensing fan 3 are both located inside an equipment integration box 11, the condensing fan 3 is located on one side of the refrigerant closed circulation unit and is communicated with the refrigerant closed circulation unit, both sides of the refrigerant closed circulation unit are communicated with a multi-connected communication base station cabinet through an air pipe subsystem, the hot end of the heat pipe 9 is located inside the equipment integration box 11 and is located between the refrigerant closed circulation unit and the air pipe system, the cold end of the heat pipe 9 is located above the equipment integration box 11, the heat pipe cold end fan 10 is located on one side of the cold end of the heat pipe 9 and is communicated with the cold end of the heat pipe 9, and both the condensing fan 3 and the heat pipe cold end fan 10 are connected with a control subsystem.

Further, as shown in fig. 2 and 3, the refrigerant closed cycle unit includes a refrigeration compressor 1, a condenser 2, a liquid storage device 4, a drying filter 5, an expansion valve 6, an evaporator 7, and a gas-liquid separator 8, the refrigeration compressor 1, the condenser 2, the liquid storage device 4, the drying filter 5, the expansion valve 6, the evaporator 7, and the gas-liquid separator 8 are sequentially communicated, the gas-liquid separator 8 is communicated with the refrigeration compressor 1, a condensing fan 3 is located at one side of the condenser 2, both sides of the evaporator 7 are communicated with the multi-connected cabinet communication base station cabinet through air pipe subsystems, and a hot end of a heat pipe 9 is located between the evaporator 7 and an air pipe system.

It should be noted that, in this embodiment, the refrigeration compressor 1, the condenser 2, the condensing fan 3, the reservoir 4, the drying filter 5, the expansion valve 6, the evaporator 7, the gas-liquid separator 8, the heat pipe 9, and the heat pipe cold end fan 10 are communicated with each other through a connecting pipe. In other embodiments of the utility model, other structures may be used instead of connecting pipes.

Further, as shown in fig. 1, the air duct subsystem includes a duct fan 12, a filtering dust screen 13, an air supply duct 14 and an air return duct 15, the duct fan 12 extends out of the device integration box 11 through the air supply duct 14 to communicate with the multi-gang-cabinet communication base station cabinet, the multi-gang-cabinet communication base station cabinet communicates with the filtering dust screen 13 in the device integration box 11 through the air return duct 15, the filtering dust screen 13, the hot end of the heat pipe 9, the evaporator 7 and the duct fan 12 are sequentially arranged, and the duct fan 12 communicates with the evaporator 7.

It should be noted that in this embodiment, the duct fan 12, the dust filter 13, the supply air duct 14 and the return air duct 15 are connected to each other through connecting pipes, and in other embodiments of the present invention, other structures may be used instead of the connecting pipes.

Further, as shown in fig. 1, a louver air opening is arranged on the device integration box 11, the louver air opening corresponds to the condenser 2 of the integrated energy-saving air conditioning subsystem, and the multi-connected communication base station cabinet is a dual-connected cabinet device cabinet or a triple-connected cabinet device cabinet.

Specifically, in this embodiment, as shown in fig. 2, the multi-connected cabinet communication base station cabinet is a triple-connected cabinet device, in the triple-connected cabinet, 1# and 2# are both device cabinets, and 3# is a battery cabinet. In other embodiments of the present invention, the present invention can also be applied to a duplex cabinet equipment cabinet or a triple cabinet equipment cabinet with other numbers of equipment cabinets and battery cabinets, as long as the purpose of the present invention is achieved.

Further, as shown in fig. 1, the control subsystem includes a temperature sensor 16 and a regulator 17, the temperature sensor 16 is installed in the return air duct 15, and the regulator 17 is respectively connected to the refrigeration compressor 1, the condensing fan 3, the heat pipe cold-end fan 10, the pipeline fan 12 and the temperature sensor 16.

It should be noted that, in the present embodiment, the regulator 17 is connected to the refrigeration compressor 1, the condensing fan 3, the heat pipe cold end fan 10, the pipeline fan 12 and the temperature sensor 16 through the connection wires, and in other embodiments of the present invention, other structures may be used instead of the connection wires.

It should be noted that, in the present embodiment, as shown in fig. 1, the exhaust port of the refrigeration compressor 1 is connected to the refrigerant inlet of the condenser 2 through a pipeline, the refrigerant outlet of the condenser 2 is connected to the refrigerant inlet of the evaporator 7 through the accumulator 4, the drying filter 5 and the expansion valve 6 in sequence, and the refrigerant outlet of the evaporator 7 is connected to the suction port of the refrigeration compressor 1 through the gas-liquid separator 8, so as to form a closed cycle of the refrigerant; the air outlet of the pipeline fan 12 is connected with the air inlet of the triple cabinet of the communication base station through an air supply duct 14, the three return air inlets of the triple cabinet are connected with the air inlet of the equipment integration box 11 after being converged through a return air duct 15, and then are connected with the hot end air inlet of the heat pipe 9 through a filtering dustproof net 13, the hot end air outlet of the heat pipe 9 is connected with the air inlet of the evaporator 7, the air outlet of the evaporator 7 is connected with the air inlet of the pipeline fan 12, and the circulation of an air system is formed.

Further, the condensing fan 3 and the heat pipe cold end fan 10 are respectively any one of a variable frequency fan, a fixed frequency fan and a shift fan, and the heat pipe 9 is any one of a cored heat pipe, a two-phase closed thermosiphon, a gravity assisted heat pipe, a rotary heat pipe, an electrohydrodynamic heat pipe, a magnetohydrodynamic heat pipe and a permeable heat pipe.

Specifically, in this embodiment, the condensing fan 3 is a variable frequency fan, and in other embodiments of the present invention, the condensing fan 3 may also be a fixed frequency fan or a shift fan. In this embodiment, the heat pipe cold-end fan 10 is a fixed-frequency fan, and in other embodiments of the present invention, the heat pipe cold-end fan 10 may also be a variable-frequency fan or a shift-gear fan. In this embodiment, the heat pipe 9 is a cored heat pipe, and in other embodiments of the present invention, the heat pipe 9 may also be a two-phase closed thermosiphon, a gravity assisted heat pipe, a rotary heat pipe, an electrohydrodynamic heat pipe, a magnetohydrodynamic heat pipe, or a permeable heat pipe. It is worth noting that two-phase closed thermosiphons are also referred to as gravity heat pipes.

Further, the condenser 2 and the evaporator 7 are respectively any one of a finned tube heat exchanger, a stacked heat exchanger and a parallel flow heat exchanger, the pipeline fan 12 is any one of a variable frequency fan, a fixed frequency fan and a gear shifting fan, and the expansion valve 6 is any one of a manual expansion valve, a choke flow expansion valve, a thermostatic expansion valve and an electronic expansion valve.

In particular, in the present embodiment, the condenser 2 is a finned tube heat exchanger, and in other embodiments of the present invention, the condenser 2 may also be a stacked heat exchanger or a parallel flow heat exchanger. In this embodiment, the evaporator 7 is a finned tube heat exchanger, and in other embodiments of the present invention, the evaporator 7 may also be a stacked heat exchanger or a parallel flow heat exchanger. In this embodiment, the duct fan 12 is a variable frequency fan, and in other embodiments of the present invention, the duct fan 12 may also be a fixed frequency fan or a shift fan. In this embodiment, the expansion valve 6 is a manual expansion valve, and in other embodiments of the present invention, the expansion valve 6 may also be a choke expansion valve, a thermostatic expansion valve, or an electronic expansion valve.

Further, the equipment integration box 11 is installed on the top or the side of the multi-gang cabinet communication base station cabinet, and the air supply duct 14 and the air return duct 15 are respectively installed on the lower portion and the upper portion of the back of the multi-gang cabinet communication base station cabinet.

It should be noted that, as shown in fig. 2, in the present embodiment, the equipment integration box 11 is installed on the top of the multi-connected cabinet communication base station cabinet, and in other embodiments of the present invention, the equipment integration box 11 may also be installed on the side of the multi-connected cabinet communication base station cabinet, etc., as long as the purpose of the present invention is achieved.

Through the mutual cooperation of the integrated energy-saving air conditioning subsystem, the air pipe subsystem and the control subsystem, according to the change of the outdoor environment temperature all the year round, the utility model also provides a working method of the heat management transformation system based on the multi-connected cabinet communication base station, when the temperature detected by the temperature sensor 16 is higher than 30 ℃ and lower than 45 ℃, the regulator 17 controls the cold end fan 10 of the heat pipe and the pipeline fan 12 to be started simultaneously; when the temperature detected by the temperature sensor 16 is higher than 45 ℃, the regulator 17 controls the condensing fan 3 and the refrigeration compressor 1 to start successively, and the interval between the condensing fan 3 and the refrigeration compressor 1 is 10 seconds; when the temperature detected by the temperature sensor 16 is lower than 35 ℃ and higher than 20 ℃, the regulator 17 controls the refrigeration compressor 1 and the condensing fan 3 to be closed successively, and the interval between the two is 15 seconds; when the temperature detected by the temperature sensor 16 is lower than 20 ℃, the regulator 17 controls the heat pipe cold end fan 10 to be closed. The working method can realize three working modes based on the multi-connected cabinet communication base station heat management transformation system, which are respectively as follows:

(1) single heat pipe mode of operation

In the transition season and winter, when the cold load in the base station cabinet is small and the temperature detected by the temperature sensor 16 is higher than 30 ℃ and lower than 45 ℃, the heat pipe cold end fan 10 and the pipeline fan 12 are started simultaneously by adopting the working mode. The integrated energy-saving air conditioner subsystem work flow is as follows: the hot end liquid working medium in the heat pipe 9 absorbs the return air heat and then evaporates into gas, circularly flows to enter the cold end of the heat pipe 9, releases the heat to heat the outdoor air introduced by the fan 10 at the cold end of the heat pipe, condenses into liquid, returns to the hot end again by means of the capillary force of the capillary material on the inner wall of the heat pipe 9 and the gravity of the liquid, and absorbs the return air heat to evaporate to start the next circulation. The working process of the air duct subsystem is as follows: high-temperature return air from the triple cabinet is converged through a return air duct 15, then is filtered through a filtering dustproof net 13 to enter the hot end of the heat pipe 9, releases heat to heat a hot end liquid working medium in the heat pipe 9, reduces the temperature of the return air, then enters the base station triple cabinet through an evaporator 7, a pipeline fan 12 and an air supply duct 14, absorbs the heat in the cabinet, increases the temperature, and returns through a return air inlet to start the next cycle. When the temperature detected by the temperature sensor 16 is less than 20 ℃, the operation mode is exited and the heat pipe cold end fan 10 is turned off.

(2) Heat pipe and refrigerating unit simultaneous working mode

In hot summer, when the cold load in the base station cabinet is large and the temperature detected by the temperature sensor 16 is higher than 45 ℃, the working mode is adopted, the heat pipe cold end fan 10 and the pipeline fan 12 are in the running state, and the condensing fan 3 and the refrigeration compressor 1 are started at intervals of 10 seconds. The integrated energy-saving air conditioner subsystem work flow is as follows: high-temperature high-pressure superheated refrigerant vapor discharged from the refrigeration compressor 1 enters the condenser 2 through a pipeline, releases heat to outdoor air and condenses the heat into supercooled refrigerant liquid, then enters the expansion valve 6 through the liquid accumulator 4 and the drying filter 5, is changed into low-temperature low-pressure gas-liquid two-phase refrigerant through throttling, temperature reduction and pressure reduction, then enters the evaporator 7, absorbs the heat of return air in the cabinet to evaporate into superheated vapor, finally enters an air suction port of the refrigeration compressor 1 through the gas-liquid separator 8, and is discharged after being compressed to start the next cycle; the operation of the heat pipe 9 is the same as the single heat pipe operation mode. The working process of the air duct subsystem is as follows: high-temperature return air from the triple cabinet is converged through a return air duct 15, then is filtered through a filtering dustproof net 13 to enter the hot end of the heat pipe 9, releases heat to heat a hot end liquid working medium in the heat pipe 9, the temperature of the return air is reduced, the return air enters the evaporator 7 to release heat to be cooled again, then enters the base station triple cabinet through a pipeline fan 12 and an air supply duct 14, absorbs the heat in the cabinet, the temperature is increased, and the return air returns through a return air inlet to start the next cycle. When the temperature detected by the temperature sensor 16 is lower than 35 ℃, the working mode is exited, and the refrigeration compressor 1 and the condensing fan 3 are closed at intervals of 15 seconds.

(3) Cabinet heat transfer mode of operation

In winter with lower outdoor temperature, when the cold load in the 1# equipment cabinet and the 2# equipment cabinet in the triple cabinet of the base station is smaller, the heat load needs to be increased in the 3# battery cabinet, and the temperature detected by the temperature sensor 16 is lower than 20 ℃, the working mode is adopted, and only the pipeline fan 12 is started. The integrated energy-saving air-conditioning subsystem is not in operation. The working process of the air duct subsystem is as follows: high-temperature return air from the 1# equipment cabinet and the 2# equipment cabinet and low-temperature return air from the 3# battery cabinet are converged through a return air duct 15, and then enter the base station triple-link cabinet through a filter dust screen 13, a hot end of a heat pipe 9, an evaporator 7, a pipeline fan 12 and an air supply duct 14, wherein the heat dissipation capacity of the air supply absorption equipment entering the 1# equipment cabinet and the 2# equipment cabinet is increased, the temperature of the air supply absorption equipment entering the 3# battery cabinet releases heat, the temperature of the air supply absorption equipment is reduced, and the high-temperature return air, the low-temperature return air and the air supply absorption equipment return air enter the 3# battery cabinet through a return air inlet to start the next cycle. When the temperature detected by the temperature sensor 16 is higher than 20 ℃, the operation mode is exited and the heat pipe cold end fan 10 is started.

It is worth to be noted that, as can be seen from the description of the above embodiments, firstly, the present invention adopts a design of an integrated energy-saving air conditioning system with one drive more units, and the devices are integrated in one box body and uniformly placed on the top or side of the cabinet, so that the present invention is beautiful and has low noise; secondly, the air supply mode of downward feeding and upward returning of the external air duct is adopted, the air flow organization in the cabinet is optimized, cold and hot partitions of air flow in the cabinet are formed, the temperature in the equipment cabinet is effectively controlled to be between 5 and 40 ℃, the temperature of the battery cabinet is controlled to be between 15 and 30 ℃, the temperature range specified by the national GB/T51216-2017 mobile communication base station engineering energy-saving technical standard is met, and the local high-temperature alarm phenomenon of the equipment cannot occur; thirdly, the heat pipe technology and the intelligent control technology are adopted, when the load in the cabinet is small, the heat pipe heat exchanger is only adopted for cooling, when the load in the cabinet is large, the heat pipe heat exchanger and the refrigerating unit are started simultaneously for cooling, the operation time of the refrigerating compressor is greatly reduced, the service life of the refrigerating compressor is prolonged, the energy-saving effect is very obvious, and according to field measurement and calculation, compared with the original door type air conditioning system of a triple cabinet positioned at a certain place in Zhengzhou city, the energy-saving rate of the annual operation cost of the improved system is as high as 58%; thirdly, because the air system of the utility model adopts closed circulation, the problem that the cleanliness in the base station seriously exceeds the standard due to the addition of a natural ventilation system in some existing base stations is solved, and the operation and the heat dissipation of equipment in the cabinet are facilitated; finally, the utility model is beneficial to realizing the targets of carbon peak reaching and carbon neutralization before 2030 years and 2060 years in China, accords with the national communication industry energy-saving technology product recommendation catalog in 2021 years, and can be widely popularized in multi-cabinet communication base station cabinets adopting traditional door type air conditioning systems.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-connected cabinet based communication base station heat management transformation system is characterized by comprising a multi-connected cabinet communication base station cabinet, an equipment integration box (11), an integrated energy-saving air conditioning subsystem, an air pipe subsystem and a control subsystem, the equipment integration box (11) is arranged on a multi-connected communication base station cabinet, one end of the integrated energy-saving air-conditioning subsystem is positioned inside the equipment integration box (11), the other end of the integrated energy-saving air-conditioning subsystem extends out of the upper end of the equipment integration box (11) and is arranged on the equipment integration box (11), one end of the air pipe subsystem is positioned inside the equipment integration box (11), the other end of the air pipe subsystem extends out of the equipment integration box (11) and is communicated with the multi-connected cabinet communication base station cabinet, one end of the control subsystem is installed in the equipment integration box (11), and the other end of the control subsystem is respectively connected with the integrated energy-saving air-conditioning subsystem and the air pipe system.

2. The multi-connected cabinet communication base station heat management transformation system based on claim 1, wherein the integrated energy-saving air conditioning subsystem comprises a refrigerant closed circulation unit, a condensing fan (3), a heat pipe (9) and a heat pipe cold end fan (10), the refrigerant closed circulation unit and the condensing fan (3) are both located inside an equipment integration box (11), the condensing fan (3) is located on one side of the refrigerant closed circulation unit and communicated with the refrigerant closed circulation unit, both sides of the refrigerant closed circulation unit are communicated with the multi-connected cabinet communication base station cabinet through an air pipe subsystem, the hot end of the heat pipe (9) is located inside the equipment integration box (11) and located between the refrigerant closed circulation unit and the air pipe system, the cold end of the heat pipe (9) is located above the equipment integration box (11), the heat pipe cold end fan (10) is located on one side of the cold end of the heat pipe (9) and communicated with the cold end of the heat pipe (9), and the condensing fan (3) and the heat pipe cold end fan (10) are both connected with the control subsystem.

3. The multi-cabinet communication base station thermal management transformation system of claim 2, the refrigerant closed circulation unit comprises a refrigeration compressor (1), a condenser (2), a liquid storage device (4), a drying filter (5), an expansion valve (6), an evaporator (7) and a gas-liquid separator (8), the refrigeration compressor (1), the condenser (2), the liquid storage device (4), the drying filter (5), the expansion valve (6), the evaporator (7) and the gas-liquid separator (8) are communicated in sequence, the gas-liquid separator (8) is communicated with the refrigeration compressor (1), the condensing fan (3) is positioned at one side of the condenser (2), both sides of the evaporator (7) are communicated with the multi-connected cabinet communication base station cabinet through air pipe subsystems, the hot end of the heat pipe (9) is positioned between the evaporator (7) and the air pipe system.

4. The multi-connected cabinet communication base station heat management transformation system based on the claim 3 is characterized in that the air duct subsystem comprises a duct fan (12), a filtering dust screen (13), an air supply duct (14) and an air return duct (15), the duct fan (12) extends out of the equipment integration box (11) through the air supply duct (14) and is communicated with the multi-connected cabinet communication base station cabinet, the multi-connected cabinet communication base station cabinet is communicated with the position of the filtering dust screen (13) in the equipment integration box (11) through the air return duct (15), the filtering dust screen (13), the hot end of the heat pipe (9), the evaporator (7) and the duct fan (12) are sequentially arranged, and the duct fan (12) is communicated with the evaporator (7).

5. The multi-connected cabinet communication base station thermal management transformation system according to any one of claims 1 to 4, wherein a louver air opening is formed in the equipment integration box (11), the louver air opening corresponds to a condenser (2) of the integrated energy-saving air conditioning subsystem, and the multi-connected cabinet communication base station is a duplex cabinet equipment cabinet or a triplex cabinet equipment cabinet.

6. The multi-cabinet communication base station heat management transformation system based on claim 5, wherein the control subsystem comprises a temperature sensor (16) and a regulator (17), the temperature sensor (16) is installed in the return air duct (15), and the regulator (17) is respectively connected with the refrigeration compressor (1), the condensation fan (3), the heat pipe cold end fan (10), the pipeline fan (12) and the temperature sensor (16).

7. The multi-connection-cabinet-based communication base station heat management transformation system according to claim 2, 3, 4 or 6, wherein the condensation fan (3) and the heat pipe cold end fan (10) are respectively any one of a variable frequency fan, a fixed frequency fan and a gear shifting fan, and the heat pipe (9) is any one of a cored heat pipe, a two-phase closed thermosiphon, a gravity assisted heat pipe, a rotary heat pipe, an electrohydrodynamic heat pipe, a magnetohydrodynamic heat pipe and a permeable heat pipe.

8. The multi-connected cabinet communication base station heat management transformation system based on claim 4, wherein the condenser (2) and the evaporator (7) are respectively any one of a finned tube heat exchanger, a stacked heat exchanger and a parallel flow heat exchanger, the pipeline fan (12) is any one of a variable frequency fan, a fixed frequency fan and a gear shifting fan, and the expansion valve (6) is any one of a manual expansion valve, a choke flow expansion valve, a thermostatic expansion valve and an electronic expansion valve.

9. The multi-connected cabinet based communication base station heat management transformation system of claim 4, wherein the equipment integration box (11) is installed at the top or the side of the multi-connected cabinet communication base station, and the air supply duct (14) and the air return duct (15) are respectively installed at the lower part and the upper part of the back of the multi-connected cabinet communication base station.