CN218336930U

CN218336930U - Mixed liquid cooling system for front-end machine room

Info

Publication number: CN218336930U
Application number: CN202222238627.3U
Authority: CN
Inventors: 郑亮; 郑洪斌; 郑洪军
Original assignee: Guangzhou Zhiguang Information Technology Co ltd
Current assignee: Guangzhou Zhiguang Information Technology Co ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2023-01-17
Anticipated expiration: 2032-08-24

Abstract

The utility model relates to the technical field of heat dissipation, and discloses a mixed liquid cooling system for a front-end computer room, which comprises a liquid cooling cabinet, a liquid cooling exchange distribution unit and an outdoor dry-type heat dissipation unit which are connected in sequence; the liquid cooling type cabinet comprises a plurality of liquid cooling units; the liquid cooling exchange distribution unit comprises a pressure expansion tank, a plate heat exchanger and a high-speed circulation shield pump which are sequentially connected; the outdoor dry type heat dissipation unit comprises a dry type warm cooling unit and an air-cooled warm water unit which are connected with each other. The utility model discloses can compatible current common equipment size, be convenient for install and use and maintain, improve energy use efficiency, energy saving and emission reduction does not waste the resource, has reduced the operation cost of computer lab, does not receive the influence of environment moreover, has improved the security and the stability of computer lab operation.

Description

Mixed liquid cooling system for front-end machine room

Technical Field

The utility model relates to a heat dissipation technical field especially relates to a mix liquid cooling system for front end computer lab.

Background

With the development of informatization, the problem of energy consumption is increasingly considered for the layout planning of the base station and the data center, the energy consumption requirement index of the data center is formulated, and certain limitation is brought to a machine room with the energy efficiency index PUE not meeting the standard. For a front-end machine room in a subtropical region, high-temperature damp heat is a natural condition, heat dissipation of equipment of the machine room is not facilitated, pervaporation cooling is adopted, a natural freezing time window can be utilized for a limited time window, and therefore more pressure of energy conservation, environmental protection and carbon neutralization is met.

At present, the traditional front-end machine room generally adopts an air-cooled cooling mode to reduce the energy consumption, but the mode cannot meet the energy consumption requirement of the machine room with increasing business, and although certain technical improvement is made on the air-cooled cooling technology, the effect is slight, and the set PUE target cannot be achieved.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a mix liquid cooling system for front end computer lab can solve current computer lab and be unfavorable for refrigerated problem under the humid and hot environment of high temperature to be applicable to the equipment of multiple existing standards, have good cooling heat dissipation function and easy operation and maintenance convenience, not only the silence is fallen and is made an uproar, can also reach energy saving and emission reduction's effect.

The utility model provides a mix liquid cooling system for front end computer lab, the system includes:

the liquid cooling cabinet, the liquid cooling exchange distribution unit and the outdoor dry type heat dissipation unit are connected in sequence;

the liquid cooling type cabinet comprises a plurality of liquid cooling units;

the liquid cooling exchange distribution unit comprises a pressure expansion tank, a plate heat exchanger and a high-speed circulation shield pump which are sequentially connected;

the outdoor dry type heat dissipation unit comprises a dry type warm cooling unit and an air-cooled warm water unit which are connected with each other.

Further, the liquid cooling unit includes:

the electronic fluorination device comprises a shell, wherein electronic fluorination liquid is filled in the shell, a glass panel is arranged on the front surface of the shell, an LED lamp strip is arranged on the upper side of the glass panel, and equipment labels, temperature display, current energy consumption display, a control switch and a network interface are arranged on two sides of the glass panel;

a fluoridizing liquid inlet and outlet is formed in the lower side of the front face of the shell, and guide rails are arranged on two sides of the bottom of the shell;

the back of the shell is provided with an interface label, an equipment socket and a power socket;

the top and two sides of the shell are respectively provided with a heat dissipation coil pipe, and the heat dissipation coil pipe is provided with a warm liquid outlet and a cold liquid inlet;

the liquid cooling unit is installed in the liquid cooling cabinet in a hoisting or guide rail telescopic installation mode.

Further, the liquid-cooled exchange distribution unit includes:

the heat exchanger comprises an exchange distribution cabinet and the plate heat exchanger arranged in the exchange distribution cabinet; the high-speed circulating shielding pump is arranged below the plate heat exchanger, the pressure expansion tank is arranged above the plate heat exchanger, the liquid recovery and filtering unit is also arranged below the high-speed circulating shielding pump, and the pressure expansion tank, the plate heat exchanger, the high-speed circulating shielding pump and the liquid recovery and filtering unit are connected through pipelines;

the top of the pressure expansion tank is provided with a deflation valve and a liquid supplementing port, and a liquid level sensor and a temperature sensor are arranged in the pressure expansion tank;

the high-speed circulation canned motor pump comprises a first high-speed circulation canned motor pump and a second high-speed circulation canned motor pump, and the liquid recovery and filtration unit comprises a cleaning bypass and a constant-pressure bypass.

Furthermore, the system also comprises a local bin and a peak-valley electric ice cold accumulation energy-saving device;

a heat dissipation air wall is arranged inside the local bin, the heat dissipation air wall is respectively connected with the liquid cooling exchange distribution unit and the outdoor dry-type heat dissipation unit through pipelines, a temperature control valve and a return air temperature sensor are arranged on the pipeline inside the heat dissipation air wall, and a plurality of fans are arranged outside the heat dissipation air wall;

the peak-valley electric ice cold accumulation energy-saving device comprises a variable frequency shield pump, a cold liquid expansion buffer tank and a cold accumulation cold pool which are mutually connected, wherein a liquid level sensor, a temperature sensor and a bottom suction filter are arranged in the cold liquid expansion buffer tank, a water release coil pipe, a radiating fin and a cold accumulation freezer are arranged in the cold accumulation cold pool, and a cooling liquid is filled in the cold accumulation cold pool;

the variable-frequency canned motor pump with the cold liquid expansion buffer tank are connected with the interface of the heat dissipation coil pipe at the top of the liquid cooling unit through a pipeline, and a temperature constant-temperature mixing valve is arranged on the pipeline between the cold liquid expansion buffer tank and the cold storage pool.

Further, dry-type warm cooling unit air-cooled warm water unit with the inside coolant liquid in cold-storage cold pond includes that ethanol mixes liquid and deionized industry distilled water, air-cooled warm water unit still is provided with atomizing cooling unit, atomizing cooling unit includes atomizing evaporation shower nozzle.

Above-mentioned the utility model provides a mixed liquid cooling system for front end computer lab. Through the system, compatible current common equipment size, the installation compatibility of being convenient for has adopted the coolant liquid sample various, has compromise cooling effect and economic benefits to can also realize energy saving and emission reduction, improve the availability factor of the energy, thereby improve the security and the stability of the front end computer lab operation that is located the subtropical area.

Drawings

Fig. 1 is a schematic structural diagram of a hybrid liquid cooling system for a front-end machine room according to an embodiment of the present invention;

FIG. 2 is a front view of the liquid cooling unit of FIG. 1;

FIG. 3 is a rear view of the liquid cooling unit of FIG. 1;

fig. 4 is a schematic structural view of the liquid-cooled cabinet in fig. 1;

FIG. 5 is a schematic view of the liquid exchange and dispensing unit of FIG. 1;

FIG. 6 is a schematic structural diagram of the outdoor dry heat dissipation unit of FIG. 1;

fig. 7 is a schematic structural diagram of a partial chamber according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a peak-valley electric ice cold storage energy saving device provided by the embodiment of the invention;

fig. 9 is a schematic diagram of a cycle in a hybrid cooling mode according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1, a hybrid liquid cooling system for a front-end machine room according to a first embodiment of the present invention includes: liquid cooling type rack 1 that connects gradually, liquid cooling exchange distribution unit 2 and outdoor dry-type radiating element 3, wherein, liquid cooling type rack 1 includes a plurality of liquid cooling unit 11, liquid cooling unit 11 is used for carrying out the liquid cooling to the IT equipment, liquid cooling exchange distribution unit 2 is used for carrying out the heat of 1 inside of liquid cooling type rack to outdoor dry-type radiating element 3, outdoor dry-type radiating element 3 is including the dry-type warm cooling unit 31 and the air-cooled warm water unit 32 of interconnect, outdoor dry-type radiating element 3 is used for carrying out outdoor heat dissipation to liquid cooling type rack 1, liquid cooling exchange distribution unit 2 and outdoor dry-type radiating element 3 can link to each other through the pipeline, and can set up the circulation of the inside liquid of a plurality of temperature-controlled valves control pipeline on the pipeline.

Each part of the hybrid liquid cooling system of the present invention will be described in detail with reference to the accompanying drawings, please refer to fig. 2, in order to make the hybrid liquid cooling system have good economical efficiency and practicability, therefore, it is necessary to reuse the original facilities of the front end machine room as much as possible in the process of building the machine room, reduce unnecessary waste, and to be easy to install, therefore, the liquid cooling cabinet 1 of the present system takes into account the plane layout of the existing 19-inch cabinet machine room, and is compatible with all 19-inch equipment installation modes and sizes. Compatible specifications of 19-inch cabinets and common 4U and 8U module heights are adopted for the liquid cooling units 11 inside, installation and use of technicians are facilitated, the full-size depth length of the liquid cooling units 11 is 950mmm, 1U or 2U rack servers and other equipment within 800mm can be accommodated inside, the half-size length is 600mm, and edge computing equipment or short computing equipment of a switch with the length of 350mm-450mm is accommodated inside. It should be noted that the specification data in the present embodiment is only a preferable mode, and is not particularly limited, and may be changed according to actual situations, and will not be described one by one hereinafter.

As can be seen from the front view of the liquid cooling unit 11 shown in fig. 2, the 19-inch rack-mounted container liquid cooling unit 11 includes a housing 111, an electronic fluorinated liquid 112 is filled in the housing 111, and a large amount of heat energy generated during operation of IT can be taken away by the electronic fluorinated liquid 112 when IT is immersed in the electronic fluorinated liquid 112, in this embodiment, a 3M electronic fluorinated liquid is preferably used, and the 3M electronic fluorinated liquid can be well fused with electronic components and devices without affecting the electronic devices, and the electronic fluorinated liquid boils at 61 to 65 degrees, which not only has a moderate boiling point and is very beneficial to the environment and human health, but also can adopt domestic electronic fluorinated liquid or more economical transformer oil as a dielectric liquid in low-cost places.

The front surface of the shell 111 is provided with a glass panel 113, and the LED light bar 114 is arranged above the glass panel 113, so that the operation condition of the server panel can be observed during LED illumination, and the visual management of the operation state can be realized.

The device label 115, the temperature display 116, the current energy consumption display 117, the control switch 118 and the network interface 119 are arranged on two sides of the glass panel 113, for example, the device label 115 which can be arranged on the left side of the glass panel 113 comprises a device label of device configuration + IP address information, administrator information and telephone, a fixed asset label and a two-dimensional code identification label, the control switch 118 comprises a restart switch and a power switch, the network interface 119 comprises a management network port, a USB socket and the like, and the device label LOGO, electronic fluoride liquid temperature display, liquid inlet pipe temperature display, LED signal indication and the like can be arranged on the right side of the glass panel 113.

The lower side of the housing 111 is provided with a fluorinated liquid inlet/outlet 120, and two sides of the bottom of the housing are further provided with bearing guide rails 121, various functions which are convenient for workers to manage and operate, such as an LED light bar switch, a liquid level indication and the like, can be further arranged beside the fluorinated liquid inlet/outlet 120, and a handle can be further arranged at the bottom of the housing 111 in a concealed manner to facilitate observation and operation and install an LED light bar, and the functions can be selectively arranged in different positions and functions according to actual conditions, which is only exemplified herein.

Referring to fig. 3, an interface tag 122, an equipment socket 123 and a power socket 124 are disposed on the back of the housing 111, such as a cold source input terminal tag, a service information tag, a network interface distribution tag, a power distribution tag, and the like, as well as a high definition HDMI socket, a VGA display socket, an a-way power socket, a B-way power socket, a management network port, a USB socket, and the like, so that the front-end computer room level is maintained, the two-way safe power supply design is ensured, the network transmission safety is maintained, the backup time for use is not reduced, and the housing 111 is designed as a metal box, so that the data safety is improved, and the risk of electromagnetic information leakage is avoided.

A heat dissipation coil 125 is disposed on the top and both sides of the housing 111, respectively, the heat dissipation coil 125 is provided with a warm fluid outlet 1251 and a cold fluid inlet 1252 to facilitate the ingress and egress of the cooling fluid, and is connected to the cold fluid pipe and the warm fluid pipe at the inlet and outlet using a quick leak prevention interface and a CPC dedicated interface.

Liquid cooling unit 111 can slide flexible installation and liquid cooling type rack 1 through the guide rail of bottom in, perhaps remove the back with the track, 4 hoisting bolts of position installation at four angles in the top of shell 111 carry out hoist and mount fixedly, and the mounting form is various and the installation is convenient.

According to the design structure of the liquid cooling unit 11, the conditions of internal equipment and liquid can be checked through the glass panel 113, the electronic fluorinated liquid 112 is drawn out in front, the replacement, upgrade and maintenance of the equipment in the box are facilitated by users, a mouse and a keyboard can be directly operated at a switch and a plug-in port of the front panel in daily operation, the temperature operation curve and the history curve of each device can be observed and recorded through network remote control, the whole 19-inch cabinet comprises a power supply PDU (power supply unit), a 1U monitoring monitor and a 1U switch, and the maximum configuration of the cabinet device can comprise 10 liquid-cooled 4U or 5 8U 19-inch rack type container liquid cooling units 11.

The liquid cooling unit 11 in the embodiment is simple to operate and convenient to maintain, a plurality of networks and USB interfaces are arranged in the front standard of the liquid cooling unit, a user can conveniently access the UTP network cable and the mouse keyboard to control, an LED lighting switch, a server start-stop switch, a restart key switch and the like are arranged in the front design, a quick-plugging anti-leakage connector and a power socket at the rear part of the liquid cooling module are arranged at the interface of the power socket, 2C 14-10A interfaces are arranged in the 3U, and 2C 20-16A interfaces are arranged in the 5U, and two input ways are adopted. The quick release latch of the upper cover of the case ensures that a user can quickly assemble and disassemble equipment such as a server and the like. The whole device has a guide rail pulling-out function, a user can conveniently move the device out of the cabinet, and the built-in server equipment can be easily lifted out by adopting the lifting equipment. The electronic fluorinated liquid designed in the sealed module box belongs to insulating medium fluid which is insulating, safe, non-toxic, non-flammable and non-ozone-depletion, can not chemically react with the internal material of equipment, can not cause aging and corrosion of components, and has a design service life of at least 20 years. By adopting the immersion cooling of the electronic fluorinated liquid boiling at 50 ℃ or 60 ℃, the nearly silent operation of the whole machine room can be realized, and more than 95 percent of heat is conveyed to the plate heat exchanger in the system through the liquid. By eliminating the electronic fans inside the computer, server, switch, etc., the power consumption of the computing device or server, network device is reduced by 10%, thus immediately saving energy.

Referring to fig. 4, the liquid cooling units 11 are installed in the cabinet to form the liquid cooling cabinet 1 of the system, the system may include a plurality of liquid cooling cabinets 1, and the front surfaces of the liquid cooling units 11 further provide quick connectors, so as to easily extract the dielectric liquid when upgrading or maintaining the server equipment is required, thereby ensuring recycling of the electronic fluorinated liquid and reducing waste. The observation window of toughened glass is configured on the front panel of the liquid cooling unit 11, so that the color and the state of liquid inside the liquid cooling unit can be observed when the LED lighting switch is turned on, the state of a signal lamp of the built-in server equipment can be observed, the current and voltage indication of the temperature of the running liquid and the consumed electric energy can be displayed on the panel in consideration of the visual management requirement, and a cabinet-level monitor is designed on the top of the whole rack to provide economic, efficient and flexible environmental monitoring. The browser access in the whole province can be carried out through the local area network, and the remote temperature monitoring in the device is provided, so that the equipment is prevented from being broken down due to extreme environments. A leak float sensor is also included for monitoring fluid leak detection in the heat dissipation circuit. The top of the rack is also provided with a 1U rack type 10Gb Ethernet switch, and the design with rich functions is adopted to support virtualization, integration of enhanced Ethernet (CEE), high availability and enterprise level layer 2 and layer 3 functions, so that lossless and low-delay performance can be provided. The switch provides line speed, high bandwidth switching, filtering, and traffic queuing without delaying data. The top of the whole cabinet is provided with a metering distribution box with a double-channel input 63A, a metering ammeter and an air circuit breaker are arranged in the metering distribution box, the whole electricity consumption of the cabinet is monitored and recorded, and the calculation of the PUE (general purpose entity) in the whole year of a machine room is guaranteed to be used as the basis of basic data. The metered power distribution unit provides real-time remote monitoring of the connected load. User-defined alarm thresholds, monitoring for potential device circuit overload.

Referring to fig. 5, the liquid cooling exchange distribution unit 2 is an intermediate link between indoor circulation and outdoor air cooling, and is also one of the key devices, and each front-end machine room can be configured with one set of liquid cooling exchange distribution unit 2. The liquid cooling exchange distribution unit 2 in the system comprises an exchange distribution cabinet 21, a plate heat exchanger 22 arranged in the exchange distribution cabinet 21, a high-speed circulation shield pump 23 arranged below the plate heat exchanger 22, a pressure expansion tank 24 arranged above the plate heat exchanger 22, and a liquid recovery and filtration unit 25 arranged below the high-speed circulation shield pump 23; the top of the pressure expansion tank 24 is provided with a deflation valve 241 and a liquid supplementing port 242, and the inside of the pressure expansion tank 24 is provided with a liquid level sensor 243 and a temperature sensor 244.

The pressure expansion tank 24, the plate heat exchanger 22, the high-speed circulation shield pump 23 and the liquid recovery and filtration unit 25 are connected through pipelines, the high-speed circulation shield pump 23 comprises a first high-speed circulation shield pump 231 and a second high-speed circulation shield pump 232, and the liquid recovery and filtration unit 25 comprises a cleaning bypass 251 and a constant pressure bypass 252.

The liquid cooling exchange distribution unit 2 transfers the heat of the electronic fluorinated liquid with the temperature of 45-50 ℃ in the liquid cooling unit 11 to the outdoor dry-type heat dissipation unit 3 through the plate heat exchanger 22, so as to simplify the management of the front-end machine room.

In order to meet the heat dissipation requirement of a front-end machine room with the refrigerating capacity of below 80KW, the system adopts the permanent magnet high-speed circulating canned motor pump technology, stepless debugging is realized by feeding back the detected liquid temperature to the variable-frequency permanent magnet high-speed circulating canned motor pump, the machine set can slowly increase and decrease the speed in the variable-speed state, the machine room can be kept in silent operation, a touch screen is configured in front to observe the operation state and display parameters, visual management is facilitated, an application interface of an indoor water-cooling air conditioner is compatible, and the environment temperature in the machine room can be conveniently reduced.

Referring to fig. 6, the outdoor dry heat dissipation unit 3 in the system includes a dry warm cooling unit 3a and an air-cooled warm water unit 3b, both units adopt a mode of driving by an electrical control board and a dc fan, and the outdoor dry heat dissipation unit 3 is an automatic speed-changing low-noise heat sink, and belongs to a main heat dissipation device of a front-end computer room.

In order to meet the heat dissipation requirement of a front-end machine room with the refrigerating capacity below 80KW, the outdoor dry type heat dissipation unit 3 adopts a low-noise direct-current variable-frequency permanent-magnet efficient heat dissipation fan 31, the rest of the structure is similar to that of a conventional dry type warm cooling unit and an air-cooling warm water unit, the outdoor dry type heat dissipation unit comprises a liquid storage tank 32 and a fin radiator 33, an air expansion tank 321 and an automatic air release valve 322 are arranged at the top of the liquid storage tank, a liquid recovery device is arranged at the bottom of the liquid storage tank, a liquid level sensor 323 and a temperature sensor 324 are further arranged inside the liquid storage tank, and the air-cooling warm water unit further comprises an EC direct-current compressor 34, a Freon evaporation coil 325 and a second liquid storage tank 35 which are arranged inside the liquid storage tank. For better energy conservation and environmental protection, the cooling liquid can be connected with a shell and tube heat exchanger in series before passing through the radiating fins, so that the activity centers or residents of nearby communities can use hot water of waste heat of a machine room, more people can be helped and served by waste heat utilization, and the aims of energy conservation and environmental protection are further fulfilled.

The outdoor dry-type heat dissipation unit in the embodiment can be mounted on an outdoor wall or directly mounted on the ground or floor of a residential building to operate in a manner similar to a multi-cascade central air conditioner outdoor unit, and a direct-current permanent-magnet low-noise axial-flow fan is used for efficient heat dissipation. The high-level position of the condenser is provided with a liquid supplementing tank, an expansion liquid tank, an expansion tank and a sensor, so that a smoother operation effect is obtained, and meanwhile, an extraction and recovery interface of the cooling liquid is arranged at the lowest position. A vertical liquid storage tank is designed in a right side bin of the outdoor dry cooler, so that the vertical liquid storage tank can be used as a buffer liquid tank, the noise of unit operation can be reduced, liquid surge is reduced, and a liquid cooling pipeline system can stably operate. And because the outdoor dry-type radiating unit can adopt a warm liquid treatment mode when the temperature is higher than 35 ℃, the atomizing and cooling unit 37 is arranged outside the air-cooled warm water unit and comprises an atomizing and evaporating nozzle for assisting the outdoor unit to cool by an ultrasonic water atomizing and evaporating cooling mode.

The coolant liquid 36 in the liquid storage pot of outdoor dry heat dissipation unit 3 in this system uses the mixed liquid of ethanol such as 35% aqueous solution of ethylene glycol or deionized industry distilled water, and this system has used the liquid different with indoor liquid as the coolant liquid in order to guarantee the purity of the indoor partial electron fluorinated liquid, and the coolant liquid has still isolated two kinds of different liquids with the electron fluorinated liquid when carrying out heat exchange by the plate heat exchanger of stainless steel with the electron fluorinated liquid in outdoor dry heat dissipation unit 3.

Referring to fig. 7, since not all the devices can be cooled by liquid cooling, for the devices that cannot be cooled by liquid cooling, such as tower devices, UPS, communication power sources, and battery packs, the system further preferably includes a local chamber 4, the local chamber 4 may be made of organic glass, and is used for placing the above non-liquid-cooled devices, a heat dissipating wind wall 41 is disposed inside the local chamber 4, the heat dissipating wind wall 41 is connected to the outdoor dry heat dissipating unit 3 and the liquid exchanging and distributing unit 2 through a pipeline, a temperature control valve 411 and an air return sensor 412 are disposed on the pipeline inside the heat dissipating wind wall 41, a plurality of fans 413 are disposed outside the heat dissipating wind wall 41, and when the cooling liquid flows through the heat dissipating wind wall 41, the heat dissipating wind wall 41 can drive the fans to cool the internal environment temperature of the local chamber 4 through the temperature of the cooling liquid.

Referring to fig. 8, for the purpose of further improving cooling and energy saving, the system further includes a peak-valley electric ice cold-storage energy-saving device 5, which includes a variable frequency canned motor pump 51, a cold liquid expansion buffer tank 52, and a cold-storage cold pool 53 that are connected to each other, a liquid level sensor 521, a temperature sensor 522, and a bottom suction filter 523 are disposed inside the cold liquid expansion buffer tank 52, a water-releasing cold coil 532, a heat dissipation fin 533, and a cold-storage cold pool 534 are disposed inside the cold-storage cold pool 53, and a cooling liquid 531 is filled inside the cold-storage cold pool 53, the variable frequency canned motor pump 51 and the cold liquid expansion buffer tank 52 are connected to an interface of a heat dissipation coil 125 on the top of the liquid cooling unit 11 through a pipeline, and a temperature constant temperature mixing valve 54 is further disposed on the pipeline between the cold liquid expansion buffer tank 52 and the cold-storage cold pool 53, wherein the variable frequency canned motor pump 51 is controlled according to time, the temperature constant temperature mixing valve 54 is set at 15-25 degrees, the cold-storage cold pool 534 can be an outdoor cold-storage dry type cold storage with 1888L capacity of a primary energy-efficient dual compressor, and the cooling liquid 531 and the cold-storage dry-storage cold-dissipation unit 3 are filled with the same cooling liquid.

The peak-valley electricity and ice cold accumulation energy-saving device 5 of the system is installed in an intermediate link and connected with a liquid cooling cabinet 1, and mainly solves the problem that when the front-end machine room is temporarily interrupted by mains supply, information equipment needs to continuously operate, the machine room depends on a UPS to provide continuous electric energy for the information equipment to operate, and operates under a high-temperature environment of 35 ℃, an outdoor unit needs to start a compressor to operate, and when the mains supply is interrupted, a generator temporarily fails to timely generate electricity and continuously operates, an ice cold accumulation container needs to be started, a cold source is released, heat of equipment is neutralized, the aim of continuously cooling the machine room equipment is fulfilled, meanwhile, the necessary cold source can be stored by using the cheap electricity price of valley electricity, and the purpose of integrally saving electricity charge is achieved.

The hybrid liquid cooling system can be divided into an economical type and a safe type according to different configurations, wherein the economical type configuration only uses one set of outdoor dry type heat dissipation units, namely one set of dry type warm cooling unit and an air-cooled warm water unit, and only one liquid cooling exchange distribution unit is arranged, the inside of the liquid cooling type rack is in a 1+1 redundant configuration, the safe type configuration is that the outdoor heat dissipation adopts a double system, namely two sets of outdoor dry type heat dissipation units in a main-standby mode, and the liquid cooling exchange distribution unit also adopts the main-standby redundant mode. In this embodiment, we assume an economical single configuration. From the above description of the various parts of the present system, a structural diagram of the hybrid liquid cooling system as shown in fig. 9 can be obtained.

The mixed liquid cooling system can be divided into an indoor machine room and an outdoor heat dissipation part, wherein two liquid cooling type cabinets, a liquid cooling exchange distribution unit and a local cabin are arranged in the indoor machine room, and the outdoor heat dissipation part adopts a set of outdoor dry heat dissipation unit. All the structures of the system are connected through pipelines. Meanwhile, an antistatic floor is arranged in the machine room, and an LED lighting lamp supporting a battery or solar energy can be arranged on the top of the machine room, so that the pipeline can be hidden and laid below the floor for the safety and the attractiveness of wiring.

The outdoor dry type heat dissipation unit of the system can select a dry cooling mode using a dry type warm cooling unit, a warm liquid processing mode using an air-cooled warm water unit and a mixed refrigeration mode using the dry type warm cooling unit and the air-cooled warm water unit according to outdoor temperature, the three modes are different in that cooling liquid for circulating heat dissipation comes from different units, the circulation processes of the cooling liquid in a local bin, a liquid cooling exchange distribution unit and a liquid cooling type cabinet are the same, the specific circulation process shown in fig. 9 is a mixed refrigeration mode, and the other two modes can refer to the circulation process.

For further reduction energy consumption, the utility model discloses peak valley ice cold-storage economizer has still been added in coolant liquid cooling circulation, and wherein peak valley ice cold-storage economizer specifically is including emergent refrigeration mode of operation, energy-conserving peak valley mode of operation and local overheat protection mode of operation:

(1) emergency cooling mode of operation

In the operation mode, a first-level energy efficiency refrigeration and cold accumulation freezer is started to refrigerate by utilizing an idle time period of an urban power grid from 1 point to 6 points at night, namely a time window of low-price electricity charge, and the glycol solution is subjected to low-temperature liquid mixing block. The cooling cabinet is internally provided with a heat dissipation stainless steel coil pipe which is communicated with a cooling liquid pipeline system and linked with a variable frequency shielding pump set through a temperature controller, so that the release of the cold energy of ice storage is realized, the heat dissipation requirement of equipment in a short time is realized through the released cold energy, the cold storage capacity can be set according to the corresponding time interval of a generator and a generator of a user, the cold energy of the equipment is generally designed to be required for 3-4 hours, and the heat dissipation capacity of the equipment required by the running time when the commercial power is interrupted is maintained.

(2) Energy-saving peak-valley mode of operation

Because the ice storage mode operation is carried out at 1-6 o' clock at night, the power failure at the time is relatively less, and basically, the power failure interruption accident occurs at the very hot time in the day. After the cold accumulation equipment is operated for cold accumulation, when the solar radiation is larger in the period from 12 pm to 4 pm in summer, and the peak time is also higher in the electric charge of a mains supply power grid, the ice storage refrigerator is triggered to release a cold source through time control at the moment, so that the peak electric charge consumed by mechanical refrigeration in high-temperature time is reduced, the expenditure of the electric charge is reduced, and the purpose of reducing the whole electric charge expenditure of a front-end computer room is realized.

(3) Local overheat protection mode of operation

When the alarm event of local overheating occurs to the equipment of the liquid cooling unit of the 19-inch rack type container, low-temperature cooling needs to be started quickly, the controller releases the cold source of ice cold storage quickly, and the requirement of quick heat dissipation of a certain liquid cooling device in a short time is met.

Through the operation mode, the energy-saving effect of the system is improved while the peak-valley electric ice cold storage energy-saving device added in the system can realize real-time rapid cooling.

To sum up, the embodiment of the present invention provides a mixed liquid cooling system for a front-end computer room, which comprises a liquid cooling cabinet, a liquid cooling exchange distribution unit and an outdoor dry heat dissipation unit, which are connected in sequence; the liquid cooling type cabinet comprises a plurality of liquid cooling units; the liquid cooling exchange distribution unit comprises a pressure expansion tank, a plate heat exchanger and a high-speed circulation shield pump which are sequentially connected; the outdoor dry type heat dissipation unit comprises a dry type warm cooling unit and an air-cooled warm water unit which are connected with each other. The utility model discloses can compatible current common equipment size, be convenient for install and use and maintain, the coolant liquid is visual and can be the liquid of multiple form, has taken into account economic nature when satisfying the cooling, has improved energy use efficiency simultaneously, and energy saving and emission reduction does not waste the resource, has reduced the operation cost of computer lab, does not receive the influence of environment moreover, and the silence falls and makes an uproar when moving, has improved the security and the stability of computer lab operation.

The embodiments in this specification are described in a progressive manner, and all the same or similar parts of the embodiments are directly referred to each other, and each embodiment is described with emphasis on differences from other embodiments. It should be noted that, the technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, the scope of the present description should be considered as being included in the present specification.

The above-mentioned embodiments only express some preferred embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for those skilled in the art, without departing from the technical principle of the present invention, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present application. Therefore, the protection scope of the present patent shall be subject to the protection scope of the claims.

Claims

1. A hybrid liquid cooling system for a front end machine room, comprising:

the liquid cooling cabinet comprises a plurality of liquid cooling units;

2. The hybrid liquid cooling system for a front end machine room of claim 1, wherein the liquid cooling unit comprises:

the electronic fluorination device comprises a shell, wherein electronic fluorination liquid is filled in the shell, a glass panel is arranged on the front surface of the shell, an LED lamp bar is arranged on the upper side of the glass panel, and equipment labels, temperature display, current energy consumption display, a control switch and a network interface are arranged on two sides of the glass panel;

3. The hybrid liquid cooling system for a front end machine room of claim 2, wherein the liquid cooled switching distribution unit comprises:

4. The hybrid liquid cooling system for a front end machine room of claim 2, further comprising a local bin and a peak-to-valley ice thermal storage energy saving device;

5. The mixed liquid cooling system for the front-end machine room as claimed in claim 4, wherein the cooling liquids inside the dry warm cooling unit, the air-cooled warm water unit and the cold storage cold pool comprise an ethanol mixed liquid and deionized industrial distilled water, and the air-cooled warm water unit is further provided with an atomization cooling unit comprising an atomization evaporation nozzle.