CN215723607U - Cabinet-level refrigerating system - Google Patents
Cabinet-level refrigerating system Download PDFInfo
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- CN215723607U CN215723607U CN202121638120.6U CN202121638120U CN215723607U CN 215723607 U CN215723607 U CN 215723607U CN 202121638120 U CN202121638120 U CN 202121638120U CN 215723607 U CN215723607 U CN 215723607U
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Abstract
The utility model provides a cabinet-level refrigerating system, which comprises: the first cabinet is internally provided with a first cold channel and a first installation position, a first cabinet air outlet communicated with the outside of the first cabinet is formed on the first cabinet, and equipment for communicating the first cold channel with the first cabinet air outlet is arranged on the first installation position; machine in air conditioning, locate the preceding cabinet door of first rack on, include: a casing on which an indoor air outlet and an indoor air return opening communicated with the outside of the first cabinet are formed and in which an indoor air cavity communicated with the indoor air outlet and the indoor air return opening is formed; the indoor heat exchanger is arranged in the indoor air cavity; the indoor fan is arranged in the indoor air cavity and is positioned on one side of the indoor heat exchanger close to the indoor air return inlet or the indoor air outlet; near-end refrigeration is realized, so that the cold energy is completely acted on the heat source in the first cabinet, the environment outside the first cabinet is not required to be cooled, and the loss of the refrigeration capacity is avoided; semi-open type circulation is formed, the wind resistance is small, and no return air short circuit exists; and the improvement to the existing machine room is small, and the consumed time is short.
Description
Technical Field
The utility model belongs to the field of cabinets, and particularly relates to a cabinet-level refrigerating system.
Background
At present, the country greatly promotes the construction of data center infrastructure, and the refrigeration of a data center machine room is always an important problem for the construction of the data center machine room. Along with the construction and development of a 5G network, equipment in a machine room has the characteristics of high power consumption and concentrated heat, the current refrigeration solution mainly adopts base station room-level refrigeration, closed cold channel refrigeration and integrated cabinet-type air conditioner overhead conditioning closed refrigeration, and the base station air conditioner room-level refrigeration is firstly used for cooling the environment and then used for cooling equipment, so that the problem of low utilization rate of cold energy and easy occurrence of local overheating is solved. The inter-row air conditioner can realize channel-level refrigeration, but the air conditioner needs to be provided with channels, end doors and other environmental conditions for matching with the refrigeration of the air conditioner, so that the refrigeration cost is increased, and the waste of space is caused to a certain extent. Although the rack air conditioner can realize cabinet-level refrigeration, the rack air conditioner occupies more cabinet space due to the characteristics of the rack air conditioner, and the air return inlet and the air outlet are both positioned at the bottom of the cabinet, so that the air flow organization is poor. And when the existing base station internal refrigeration scheme is modified, the modified part is large, the scheme is complex, and the cost is high. Aiming at the problems, the utility model provides a cabinet-level refrigerating system in order to change the current situation that the space of a current base station is used and the refrigerating efficiency is low, realize the quick deployment of the existing machine room, take the development needs of other high-power-consumption equipment into consideration in the future and realize the change of the refrigerating mode from room level to channel level and then to cabinet level.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. For this purpose,
according to an embodiment of the present disclosure, there is provided a cabinet level refrigeration system including:
the first cabinet is internally provided with a first cold channel positioned on the front side of the first cabinet and a first installation position positioned on the rear side of the first cold channel, and a first cabinet air outlet communicated with the outside of the first cabinet is formed on the first installation position;
the indoor set of air conditioning locates on the preceding cabinet door of first rack and include:
the first cabinet is provided with an indoor air outlet and an indoor air return opening communicated with the outside of the first cabinet, and an indoor air cavity communicated with the indoor air outlet and the indoor air return opening is formed in the first cabinet;
the indoor heat exchanger is arranged in the indoor air cavity and used for exchanging heat with air in the indoor air cavity;
and the indoor fan is arranged in the indoor air cavity and positioned at one side of the indoor heat exchanger close to the indoor air return inlet or the indoor air outlet and is used for sending air into the first cold channel through the indoor air outlet.
The indoor unit of the air conditioner is arranged on the front cabinet door of the first cabinet, so that the indoor air outlet is close to the first cabinet, near-end refrigeration is realized, cabinet-level refrigeration is formed, cold energy is enabled to completely act on a heat source in the first cabinet, the temperature reduction of the environment outside the first cabinet is not needed, the loss of refrigerating capacity is avoided, the utilization rate of a refrigerating system is greatly improved, the indoor unit of the air conditioner does not occupy the space in the first cabinet, the utilization rate of the space in the first cabinet is greatly improved, an indoor air return opening is arranged to be communicated with the outside of the first cabinet, an air outlet of the first cabinet is communicated with the outside of the first cabinet to form a semi-open type circulation, open type return air is formed, a return air space is not needed to be arranged in the first cabinet, the utilization rate of equipment space in the first cabinet is improved, the return air area is large, the air resistance is small, no return air short circuit exists, the energy efficiency can be greatly improved, the refrigeration cost is reduced, and the improvement on the existing machine room is smaller when the scheme is realized, only need change the cabinet door of first rack and install the air conditioning indoor set can, consuming time is short, efficient.
According to the embodiment of the disclosure, the first cabinet is provided with the rear cabinet door which is located on the rear side of the first installation position, the first cabinet air outlet is formed in the rear cabinet door of the first cabinet, so that the distance between the first cabinet air outlet and the indoor air return opening is relatively long, air exhausted from the first cabinet air outlet can be better fused with air in a machine room, the situation that air exhausted from the first cabinet air outlet directly enters the air conditioner indoor unit from the indoor air return opening is avoided, and the air temperature entering the air conditioner indoor unit is avoided being too high.
According to an embodiment of the present disclosure, the housing includes:
the shell is connected on the front cabinet door and located on the outer side of the front cabinet door, the outdoor air return opening is formed in the shell, and the outdoor air return opening is simple in structure and convenient to design.
According to an embodiment of the present disclosure, the chassis further comprises:
the protection network, connect in the shell is inboard and be located the inboard of preceding cabinet door, be formed with on the protection network indoor air outlet, simple structure, the design of being convenient for.
According to the embodiment of the disclosure, the air conditioner further comprises an air conditioner outdoor unit, the air conditioner outdoor unit is provided with a compressor, a variable frequency controller and a fluorine pump, the compressor and the fluorine pump do not work at the same time, and the air conditioner outdoor unit and the air conditioner indoor unit can be matched to realize multiple refrigeration modes.
According to the embodiment of the disclosure, the air conditioner further comprises a temperature sensor arranged outside the machine room and used for detecting the temperature of the environment outside the machine room so as to control the compressor or the fluorine pump to be turned on or off, so that the normal compressor refrigeration mode and the fluorine pump refrigeration mode can be normally realized.
According to the embodiment of the disclosure, the air conditioner further comprises a temperature sensor which is arranged in the machine room and outside the first cabinet, and is used for detecting the temperature of the environment which is arranged in the machine room and outside the first cabinet so as to control the air conditioner refrigeration system to work or stop, so that the utilization mode of the environment cold source can be normally realized.
According to the embodiment of the disclosure, the cooling system further comprises a second cabinet, the first cabinet and the second cabinet are provided with at least one and the second cabinet and the first cabinet are randomly arranged in a line, a second cold channel positioned on the front side of the second cabinet and a second installation position positioned on the rear side of the second cold channel are formed in the second cabinet, a second cabinet air outlet communicated with the outside of the second cabinet is formed in the second cabinet, equipment for communicating the second cold channel with the second cabinet air outlet is arranged on the second installation position, the second cold channel of the second cabinet is communicated with the first cold channel of the first cabinet, so that low-temperature gas in the first cabinet can enter the second cold channel of the second cabinet, then exchanges heat with the equipment in the second cabinet to form hot air, and the hot air is exhausted out of the first cabinet through the second air outlet of the second cabinet, thereby realizing cold quantity sharing between the first cabinet and the second cabinet, the refrigeration efficiency can be improved.
According to the embodiment of the disclosure, the outdoor unit of the air conditioner is further provided, the indoor unit of the air conditioner or the outdoor unit of the air conditioner is provided with electronic expansion valves, the number of the indoor units of the air conditioner is at least two, one outdoor unit of the air conditioner is connected with at least two indoor units of the air conditioner, when the outdoor unit of the air conditioner is provided with the electronic expansion valves, the number of the electronic expansion valves arranged on the outdoor unit of the air conditioner is equal to that of the indoor units of the air conditioner connected with the outdoor unit of the air conditioner, one outdoor unit of the air conditioner can be used for driving a plurality of indoor units of the air conditioner, and the space utilization rate of a machine room of a data center can be effectively improved.
According to the embodiment of the disclosure, a temperature sensor is arranged in the first cabinet, a controller is arranged in the air-conditioning outdoor unit, the controller receives signals of the temperature sensor in the first cabinet and controls the valve opening degree of the electronic expansion valve corresponding to the air-conditioning indoor unit of the first cabinet and the on-off of the air-conditioning indoor unit of the first cabinet, so that the output cold quantity can be automatically adjusted according to the heating quantity condition in the first cabinet, the matching between the cold quantity and the heating quantity of equipment is ensured, the repeated start and stop of the air-conditioning indoor unit are avoided, and the energy saving performance of the system is improved.
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 block diagram of a refrigeration system according to an embodiment of the present disclosure;
FIG. 2 is a partial top cross-sectional view of a refrigeration system according to an embodiment of the present disclosure;
fig. 3 is a side cross-sectional view of a first cabinet according to an embodiment of the present disclosure;
FIG. 4 is another schematic diagram of a refrigeration system according to an embodiment of the present disclosure;
FIG. 5 is another schematic diagram of a refrigeration system according to an embodiment of the present disclosure;
FIG. 6 is a top cross-sectional view of a refrigeration system according to an embodiment of the present disclosure;
FIG. 7 is a top cross-sectional view of another partial configuration of a refrigeration system according to an embodiment of the present disclosure;
FIG. 8 is another top cross-sectional view of a refrigeration system according to an embodiment of the present disclosure;
fig. 9 is another schematic structural diagram of a refrigeration system according to an embodiment of the present disclosure.
In the above figures: a first cabinet 1; a first cold aisle 11; a first mounting location 12; a first cabinet air outlet 13; a front cabinet door 14; a rear cabinet door 15; an indoor air-conditioning unit 2; a housing 21; a housing 201; a protection net 202; an indoor air outlet 211; an indoor return air inlet 212; an indoor air chamber 213; a low temperature air cavity 2131; a high temperature air cavity 2132; an indoor heat exchanger 22; an indoor fan 23; an air conditioner outdoor unit 3; an outdoor fan 31; a compressor 32; a fluorine pump 33; a second cabinet 4; a second cold aisle 41; a second mounting location 42; second cabinet air outlet 43.
Detailed Description
The utility model is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
The present invention provides a cabinet-level refrigeration system, which is described below with reference to fig. 1 to 9, fig. 1 is a schematic structural diagram of a refrigeration system according to an embodiment of the present disclosure, wherein the arrow directions in fig. 3 and 8 refer to the flow direction of an air flow.
Referring to fig. 1 and 2, the cabinet-level refrigeration system includes a first cabinet 1, where the first cabinet 1 has at least one, a first cooling duct 11 located in a front side of the first cabinet and a first installation location 12 located in a rear side of the first cooling duct 11 are formed in the first cabinet 1, a first cabinet air outlet 13 communicated with an outside of the first cabinet is formed in the first cabinet 1, a device communicating the first cooling duct and the first cabinet air outlet is provided on the first installation location 12, the first installation location 12 may have a plurality of first installation locations, and the plurality of first installation locations may be arranged longitudinally, where the first installation location may be a U location.
The first cabinet 1 is further provided with a front cabinet door 14 located on the front side of the first cold channel 11 and a rear cabinet door 15 located on the rear side of the first installation position 12, the first cabinet air outlet 13 is formed in the rear cabinet door of the first cabinet to realize air outlet on the rear side of the first cabinet, cold air of the first cold channel forms hot air after heat exchange between equipment and the equipment, and the hot air is exhausted out of the first cabinet from the first cabinet air outlet on the rear side of the first cabinet. The first cabinet air outlet 13 may have a plurality of first cabinet air outlets 13 arranged in a row and a column on the rear cabinet door of the first cabinet. The first cabinet may further have side panels, a top panel and a bottom panel, and a sealed space is formed in the first cabinet.
Referring to fig. 1, the cabinet-level refrigeration system further includes an indoor air conditioner 2 and an outdoor air conditioner 3, where the indoor air conditioner and the outdoor air conditioner are at least one, the outdoor air conditioner 3 is located outside the first cabinet, the indoor air conditioner is located on a front cabinet door 14 of the first cabinet, the indoor air conditioner can correspond to the first cabinet one to one, and the indoor air conditioner and the front cabinet door of the first cabinet are connected in a sealing manner so that the first cabinet is sealed.
The air-conditioning indoor unit is arranged on the front cabinet door of the first cabinet, so that the air-conditioning indoor unit does not occupy the space in the first cabinet, and the utilization rate of the space in the first cabinet is greatly improved.
The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged. The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process. The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant.
The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit of the air conditioner or the outdoor unit of the air conditioner.
The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the indoor unit of the air conditioner can produce heat, and when the indoor heat exchanger is used as an evaporator, the indoor unit of the air conditioner can produce cold.
Referring to fig. 1, the indoor unit 2 of the air conditioner includes a casing 21, the casing 21 is connected to the front cabinet door 14 of the first cabinet, an indoor air outlet 211 and an indoor air return opening 212 are formed on the casing, the indoor air return opening 212 is communicated with the outside of the first cabinet, an indoor air chamber 213 is formed in the indoor unit of the air conditioner, and the indoor air chamber 213 is communicated with both the indoor air outlet 211 and the indoor air return opening 212. Specifically, the indoor air outlet is located on the inner side of the indoor unit of the air conditioner and faces the first cold channel 11.
The indoor unit 2 of the air conditioner further includes an indoor heat exchanger 22, wherein the indoor heat exchanger is disposed in the indoor air cavity 213 for exchanging heat with air in the indoor air cavity.
Specifically, the indoor heat exchanger can divide an indoor air cavity into a high-temperature air cavity 2132 and a low-temperature air cavity 2131, the high-temperature air cavity 2132 is communicated with the outside of the first cabinet through an indoor air return opening, so that the indoor unit of the air conditioner is communicated with the outside environment of the first cabinet through the indoor air return opening to achieve air return outside the cabinet, and the low-temperature air cavity 2131 is communicated with the first cold channel through an indoor air outlet. The indoor heat exchanger can be vertically arranged or obliquely arranged, the arrangement of the low-temperature air cavity and the high-temperature air cavity can be guaranteed, the arrangement of the first cold channel in the first cabinet and the arrangement of the indoor air return opening are suitable for the first cabinet, and the normal operation of heat dissipation of the first cabinet is guaranteed. The indoor heat exchanger can be a parallel flow heat exchanger or a copper pipe aluminum fin and other heat exchangers.
The indoor unit 2 of the air conditioner further comprises an indoor fan 23, the indoor fan 23 is arranged in the indoor air cavity, and the indoor fan 23 is located on one side, close to the indoor air return opening or the indoor air outlet, of the indoor heat exchanger and used for sending air into the first cold channel through the indoor air outlet.
Specifically, when the indoor fan is located on one side of the indoor heat exchanger close to the indoor air outlet, the indoor fan can be an axial flow fan or a centrifugal fan, the indoor fan can be located in the low-temperature air cavity, and the indoor fan 23 sends the air flow in the low-temperature air cavity into the first cold channel from the indoor air outlet. When the indoor fan is positioned on one side of the indoor heat exchanger close to the indoor air return opening, the indoor unit of the air conditioner can be an axial flow fan, and the indoor fan can be positioned in the high-temperature air cavity. The indoor fan has at least one, and of course the indoor fan can have at least two, and when the indoor fan has at least two, the indoor fan sets up at longitudinal interval, can improve the cold wind volume of blowing to first cold aisle.
Referring to fig. 1, the casing 21 includes a casing 201 and a protective net 202, where the casing 201 is connected to a front cabinet door of the first cabinet and located outside the front cabinet door of the first cabinet, and the casing is provided with a plurality of outdoor air return openings 212, and the plurality of outdoor air return openings are arranged in rows and columns, so that the structure is simple and the design is convenient. The protection network 202 is connected to the inner side of the shell and located on the inner side of a front cabinet door of the first cabinet, an indoor air outlet 211 is formed in the protection network, the protection network further plays a role of an indoor fan of the protection network, the structure is simple, the design is convenient, the formation of refrigeration cycle can be guaranteed, and the normal operation of heat dissipation of the first cabinet is guaranteed.
When the air conditioning indoor unit and the air conditioning outdoor unit are started, referring to fig. 3 and 8, cold air is blown out of the air conditioning indoor unit, enters from the front of the equipment through the first cold channel, takes away heat of the equipment, then becomes hot air, is exhausted to the outside of the first cabinet through the first cabinet air outlet at the rear part of the first cabinet, the equipment is cooled, the air conditioning indoor unit is communicated with the environment outside the first cabinet through the indoor air return opening, the indoor fan rotates to generate negative pressure, and therefore air outside the first cabinet is sucked into the indoor air cavity to complete a semi-open type circulation.
The indoor unit of the air conditioner is arranged on the front cabinet door of the first cabinet, so that the indoor air outlet is close to the first cabinet, near-end refrigeration is realized, cabinet-level refrigeration is formed, cold energy is enabled to completely act on a heat source in the first cabinet, the temperature reduction of the environment outside the first cabinet is not needed, the loss of refrigerating capacity is avoided, the utilization rate of a refrigerating system is greatly improved, the indoor unit of the air conditioner does not occupy the space in the first cabinet, the utilization rate of the space in the first cabinet is greatly improved, an indoor air return opening is arranged to be communicated with the outside of the first cabinet, an air outlet of the first cabinet is communicated with the outside of the first cabinet to form a semi-open type circulation, open type return air is formed, a return air space is not needed to be arranged in the first cabinet, the utilization rate of equipment space in the first cabinet is improved, the return air area is large, the air resistance is small, no return air short circuit exists, the energy efficiency can be greatly improved, the refrigeration cost is reduced, and the improvement on the existing machine room is smaller when the scheme is realized, only need change the cabinet door of first rack and install the air conditioning indoor set can, consuming time is short, efficient.
The first cabinet air outlet is arranged on the rear cabinet door of the first cabinet, so that the distance between the first cabinet air outlet and the indoor air return opening is far, air exhausted from the first cabinet air outlet can be better fused with air in a machine room, the phenomenon that air exhausted from the first cabinet air outlet directly enters the air conditioner indoor unit from the indoor air return opening is avoided, and the temperature of the air entering the air conditioner indoor unit is too high.
Referring to fig. 1, the outdoor unit of the air conditioner has a compressor 32, a variable frequency controller, an outdoor fan 31 and an outdoor heat exchanger, the compressor adopts variable frequency control, and can automatically adjust frequency according to the heat dissipation capacity of the equipment in the first cabinet and the change of the outdoor environment temperature, so that the output cold capacity of the indoor unit of the air conditioner meets the heat dissipation requirement of the equipment, and energy-saving control is realized; meanwhile, the outdoor unit of the air conditioner is also provided with a fluorine pump 33, when the temperature outside the machine room is lower than a certain set value, the fluorine pump is started, the compressor stops running, the cold source outside the machine room is fully utilized, and the energy-saving effect is achieved. The compressor and the fluorine pump are arranged, so that the outdoor unit of the air conditioner can be matched with the indoor unit of the air conditioner to realize various refrigeration modes. Wherein including normal compressor refrigeration mode, fluorine pump refrigeration mode and environment cold source utilization mode, rack level refrigerating system still has the temperature sensor who locates outside the computer lab for detect the temperature of the environment outside the computer lab and open or close with control compressor or fluorine pump, can make normal compressor refrigeration mode and fluorine pump refrigeration mode normally realize, rack level refrigerating system still has the temperature sensor who locates in the computer lab and be located outside the first rack, be used for detecting the temperature that is located in the computer lab and is located the environment outside the first rack and work or shut down in order to control air conditioner refrigerating system, can make environment cold source utilization mode normally realize.
Normal compressor cooling mode: when the temperature sensor detects that the temperature outside the machine room is higher than a certain set value, the compressor is started, the fluorine pump is closed, the outdoor fan is synchronously started, and the indoor fan continuously operates. At the moment, cold air is blown out of the air-conditioning indoor unit, enters from the front of the equipment through the first cold channel, takes away heat of the equipment, then becomes hot air, is exhausted outside the first cabinet through the first cabinet air outlet at the rear part of the first cabinet, the air-conditioning indoor unit is communicated with the environment outside the first cabinet through the indoor air return opening, the indoor fan rotates to generate negative pressure, and therefore air outside the first cabinet is sucked into the air-conditioning indoor unit to complete a semi-open type circulation.
A fluorine pump refrigeration mode: when the temperature sensor detects that the temperature outside the machine room is lower than a certain set value, the fluorine pump is started, the compressor stops running, the cold source outside the machine room is fully utilized, and the energy-saving effect is achieved. At this time, the circulation of the first cabinet internal air passage is consistent with that of the normal compressor during refrigeration.
Environmental cold source utilization mode: when the temperature sensor detects that the temperature in the machine room and the environment outside the first cabinet is lower than a certain set value, the air-conditioning refrigeration system is stopped, namely the compressor, the fluorine pump and the outdoor fan are stopped, and the indoor fan is kept on. Because the first cabinet is communicated with the inside and the outside, the indoor fan rotates to suck cold air in the environment outside the first cabinet into the first cabinet to dissipate heat of the heating equipment, and the cold air is exhausted from the first cabinet air outlet at the rear side of the first cabinet after being dissipated.
Referring to fig. 3-6 and 8, the cabinet-level refrigeration system further includes a second cabinet 4, the outdoor unit of the air conditioner is disposed outside the second cabinet, the first cabinet and the second cabinet are both provided with at least one and the second cabinet and the first cabinet are randomly arranged in a row, a second cooling channel 41 located at the front side of the second cabinet and a second installation position 42 located at the rear side of the second cooling channel are formed in the second cabinet 4, a second cabinet air outlet 43 communicated with the outside of the second cabinet is formed in the second cabinet 4, a device communicating the second cooling channel and the second cabinet air outlet is disposed on the second installation position, the second cooling channel of the second cabinet is communicated with the first cooling channel of the first cabinet, so that low-temperature air in the first cabinet can enter the second cooling channel of the second cabinet, then exchange heat with the device in the second cabinet to form hot air, and the hot air is discharged out of the first cabinet through the second air outlet of the second cabinet, the cold quantity sharing between the first cabinet and the second cabinet is realized, and the refrigeration efficiency can be improved.
The first cold channel of the first cabinet is communicated with the second cold channel of the second cabinet or partially communicated with the second cold channel of the first cabinet, the heat dissipation effect can be improved, when one of the air-conditioning indoor units is in a downtime emergency state, the adjacent cabinets can distribute low-temperature air flow to heating equipment in an emergency area for emergency heat dissipation, high-temperature air flow in the emergency area can enter the adjacent air-conditioning indoor units through the adjacent air-conditioning return air inlets for heat exchange, when the downtime emergency state occurs in a single air-conditioning indoor unit, the adjacent air-conditioning indoor units can achieve mutual redundancy, redundancy setting is not needed to be carried out on each air-conditioning indoor unit independently, normal operation of the equipment in a short time in the emergency state can be guaranteed, and enough time is provided for rush repair of the air-conditioning indoor units.
The first cabinet and the second cabinet are arranged at intervals, so that the cold energy generated by the indoor air conditioner can be uniformly distributed into the first cabinet and the second cabinet, and the problem that the indoor air conditioner is too concentrated and the cooling effect on the local second cabinet is poor is solved.
When only one air conditioner indoor unit is provided, one air conditioner outdoor unit is provided and connected with the air conditioner indoor unit, so that the normal work of the air conditioner indoor unit is ensured.
Referring to fig. 9, the air conditioning indoor units or the air conditioning outdoor units have electronic expansion valves (not shown), when there are at least two air conditioning indoor units, there is at least one air conditioning outdoor unit, and one air conditioning outdoor unit is connected to at least two air conditioning indoor units, and when there are electronic expansion valves, the number of the electronic expansion valves of the air conditioning outdoor unit is equal to the number of the air conditioning indoor units connected to the air conditioning outdoor unit, so that one air conditioning outdoor unit can serve multiple air conditioning indoor units, and the space utilization rate of the data center machine room can be effectively improved.
When the outdoor air conditioner is used for driving a plurality of indoor air conditioners, all or part of first cold channels between the first cabinets can be communicated, or all or part of the first cold channels of the first cabinets are communicated with all or part of second cold channels of the second cabinets, if a single indoor air conditioner is in a breakdown emergency state, the adjacent cabinets can distribute low-temperature airflow to heating equipment in an emergency area for emergency heat dissipation, high-temperature airflow in the emergency area can enter the adjacent indoor air conditioners through adjacent air conditioner return air inlets for heat exchange, and cold quantity intercommunication ensures that when the single indoor air conditioner is in the breakdown emergency state, the adjacent indoor air conditioners can realize mutual redundancy, and each indoor air conditioner is not required to be independently redundantly arranged, so that normal operation of equipment in a short time in the emergency state can be ensured, and enough time is provided for rush repair of the indoor air conditioners.
A temperature sensor (not shown) is arranged in the first cabinet, a controller (not shown) is arranged in the air conditioner outdoor unit, the controller receives temperature parameters of the temperature sensor in the first cabinet and controls the valve opening degree of the electronic expansion valve corresponding to the air conditioner indoor unit of the first cabinet, and the controller receives the temperature parameters of the temperature sensor in the first cabinet and controls the on-off of the air conditioner indoor unit of the first cabinet. The output cold quantity can be automatically adjusted according to the heating quantity condition in the first cabinet, the match between the cold quantity and the heating quantity of equipment is ensured, the repeated starting and stopping of the indoor unit of the air conditioner are avoided, and the energy saving performance of the system is improved.
The air conditioner outdoor units can be at least two, the air conditioner outdoor units connected with the two adjacent air conditioner indoor units can be different, cabinet concentration in a certain area caused by the failure of one of the air conditioner outdoor units can be avoided, the normal operation of equipment in a short time in an emergency state can be ensured, and sufficient time is provided for the emergency repair of the air conditioner outdoor unit with problems.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A cabinet level refrigeration system, comprising:
the first cabinet is internally provided with a first cold channel positioned on the front side of the first cabinet and a first installation position positioned on the rear side of the first cold channel, and a first cabinet air outlet communicated with the outside of the first cabinet is formed on the first installation position;
the indoor set of air conditioning locates on the preceding cabinet door of first rack and include:
the first cabinet is provided with an indoor air outlet and an indoor air return opening communicated with the outside of the first cabinet, and an indoor air cavity communicated with the indoor air outlet and the indoor air return opening is formed in the first cabinet;
the indoor heat exchanger is arranged in the indoor air cavity and used for exchanging heat with air in the indoor air cavity;
and the indoor fan is arranged in the indoor air cavity and positioned at one side of the indoor heat exchanger close to the indoor air return inlet or the indoor air outlet and is used for sending air into the first cold channel through the indoor air outlet.
2. The cabinet-level refrigeration system of claim 1, wherein the first cabinet has a rear cabinet door located behind the first mounting location, and the first cabinet air outlet is provided on the rear cabinet door of the first cabinet.
3. The cabinet level refrigeration system of claim 1, wherein the enclosure comprises:
the shell is connected to the front cabinet door and located on the outer side of the front cabinet door, and an outdoor air return opening is formed in the shell.
4. The cabinet level refrigeration system of claim 3, wherein the enclosure further comprises:
the protective net is connected to the inner side of the shell and located on the inner side of the front cabinet door, and the indoor air outlet is formed in the protective net.
5. The cabinet-level refrigeration system of claim 1, further comprising an outdoor unit of an air conditioner having a compressor, an inverter controller, and a fluorine pump, wherein the compressor and the fluorine pump do not operate simultaneously.
6. The cabinet-level refrigeration system of claim 5, further comprising a temperature sensor located outside the room for sensing the temperature of the environment outside the room to control the compressor or fluorine pump on or off.
7. The cabinet-level cooling system of claim 5, further comprising a temperature sensor disposed in the machine room and outside the first cabinet for sensing a temperature of an environment in the machine room and outside the first cabinet to control operation or shutdown of the air conditioning and cooling system.
8. The cabinet-level cooling system according to claim 1, further comprising a second cabinet, wherein the first cabinet and the second cabinet are provided with at least one and the second cabinet and the first cabinet are randomly arranged in a row, a second cooling channel located at the front side of the second cabinet and a second installation position located at the rear side of the second cooling channel are formed in the second cabinet, a second cabinet air outlet communicated with the outside of the second cabinet is formed in the second cabinet, equipment for communicating the second cooling channel with the second cabinet air outlet is arranged on the second installation position, and the second cooling channel of the second cabinet is communicated with the first cooling channel of the first cabinet.
9. The cabinet-level refrigeration system according to claim 1 or 8, further comprising an outdoor unit, wherein the indoor unit or the outdoor unit has at least two electronic expansion valves, one of the outdoor units is connected to at least two of the indoor units, and when the outdoor unit has the electronic expansion valves, the number of the electronic expansion valves of the outdoor unit is equal to the number of the indoor units connected thereto.
10. The cabinet-level cooling system of claim 9, wherein a temperature sensor is disposed in the first cabinet, and a controller is disposed in the air-conditioning outdoor unit, the controller receiving a signal from the temperature sensor in the first cabinet and controlling the valve opening of the electronic expansion valve corresponding to the air-conditioning indoor unit of the first cabinet and the on/off of the air-conditioning indoor unit of the first cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121638120.6U CN215723607U (en) | 2021-07-16 | 2021-07-16 | Cabinet-level refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121638120.6U CN215723607U (en) | 2021-07-16 | 2021-07-16 | Cabinet-level refrigerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215723607U true CN215723607U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121638120.6U Active CN215723607U (en) | 2021-07-16 | 2021-07-16 | Cabinet-level refrigerating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215723607U (en) |
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2021
- 2021-07-16 CN CN202121638120.6U patent/CN215723607U/en active Active
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