CN109413937B

CN109413937B - Air conditioner for machine room server

Info

Publication number: CN109413937B
Application number: CN201811224375.0A
Authority: CN
Inventors: 桑海涛; 嵇晓雷
Original assignee: Jiangsu Open University of Jiangsu City Vocational College
Current assignee: Jiangsu Open University of Jiangsu City Vocational College
Priority date: 2018-10-19
Filing date: 2018-10-19
Publication date: 2020-01-07
Anticipated expiration: 2038-10-19
Also published as: CN109413937A

Abstract

The invention discloses an air conditioning device of a machine room server, which comprises a heat exchange system, an air curtain air conditioning system, a fire extinguishing system, a server support system and an intelligent control system, wherein the intelligent control system comprises an intelligent controller, an alarm and a fire sensor, the intelligent controller is respectively connected with a ceiling three-way valve, a ground three-way valve, a circulating air pump, a fire extinguishing blowing air pump, a fire extinguishing air suction pump, the alarm and the fire sensor, controls the valve port switches of the ceiling three-way valve and the ground three-way valve, controls the operation of the circulating air pump, the fire extinguishing blowing air pump and the fire extinguishing air suction pump, receives a fire sensor signal and controls the alarm to alarm, the fire sensor is arranged in an internal cooling walkway, and the alarm is arranged in a machine room or a machine room control room.

Description

Air conditioner for machine room server

Technical Field

The invention belongs to the technical field of air conditioners, and particularly relates to an air conditioning device of a machine room server.

Background

In large-scale data storage, cloud application server save computer lab, can place a large amount of servers, the heat that these servers can produce in the operation process, and be in safety and antidetonation consideration, the computer lab generally sets up to in the closed room of high antidetonation grade, and ventilation effect is not good, leads to the heat that the server produced to be difficult to disperse, consequently, the computer lab needs special air cooling system to cool off and ventilate. In addition, because the server is placed in a concentrated way, cause the conflagration to be the leading cause of computer lab conflagration because of a certain server overload or short circuit, for this reason, the computer lab will be equipped with a large amount of fire extinguishing equipment, but this kind of mode also needs the time because of personnel are in place, lead to the server to be probably salvaged untimely, if adopt automatic fire extinguishing systems, then with high costs, be difficult to accept, if can integrate air conditioning system and fire extinguishing systems, utilize the air conditioner to put out a fire, then very big reduce cost, improve the accuracy and the timeliness of putting out a fire simultaneously.

Disclosure of Invention

The invention aims to solve the technical problem of providing a machine room server air conditioning device which has a fire extinguishing function, is quick in response and is specially used for a server room, aiming at the defects of the prior art.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:

computer lab server air conditioning equipment, including heat transfer system, wherein: the heat exchange system comprises a refrigeration compressor, a condenser and heat exchange sheets, the refrigeration compressor enables cooling liquid in the circulation pipeline to flow in a circulating mode, the condenser is used for cooling the cooling liquid in the circulation pipeline, the number of the heat exchange sheets is a plurality of, the heat exchange sheets are arranged in parallel, each heat exchange sheet comprises a plurality of layers of metal grid plates which are horizontally arranged, gaps are formed among the metal grid plates, the metal grid plates are fixed together through water passing plates, the water passing plates are located on two sides of the metal grid plates, cavities are formed in the metal grid plates and the water passing plates, the cooling liquid in the circulation pipeline can flow through the cavities of the metal grid plates and the water passing plates and flow through the heat exchange sheets, the heat exchange sheets are located on the ceiling of the machine room, the air conditioning device of the machine room server further comprises an air conditioning system, a fire extinguishing system and a server support system, the air conditioning system comprises an air supply opening, the air conditioner air pumping pipe is internally provided with an annular butt joint frame which divides the air pumping butt joint port into an outer air curtain passage and an inner cooling passage, the upper part of the annular butt joint frame is provided with a butt joint groove, the butt joint groove is connected with the bottom of a server support system, the air conditioner air pumping pipe is internally provided with a circulating air pump, the circulating air pump can suck air in the machine room into the air conditioner air pumping pipe from the air pumping butt joint port and blow the air in the air conditioner air pumping pipe out from the air supply port, the server support system comprises a base, a horizontal frame and a supporting plate, the base is of a horn-shaped structure, the upper part is large and the lower part is small, the lower opening of the base is fixedly connected with the butt joint grooves, the inner cooling walkway is positioned at the inner side of the base, the outer air curtain walkway is positioned at the outer side of the base, the upper opening of the base is fixedly connected with the bottommost horizontal frame, the number of the horizontal frames is a plurality, the horizontal frames are uniformly horizontally arranged, the size and the structure are the same, the horizontal frames are fixedly connected through the vertical supporting plate, the upper surface of each horizontal frame is provided with a plurality of server fixing grooves and air guide grooves which vertically penetrate through the upper surface of the horizontal frame, the server fixing grooves and the air guide grooves are arranged at intervals, the length of the server fixing grooves and the length of the air guide grooves are the same, when the horizontal frames are fully filled with servers, the upper parts of the servers are close to the lower surface of the upper horizontal frame, air guide grooves exist, the outer side of the outer air curtain walkway is provided with an air curtain wind deflector which is positioned at the outer side of the server bracket system, the surface of the air curtain wind deflector facing the outer air curtain walkway is smooth and vertical to the upper end of the surface, the plane defined by the upper end of the air curtain wind deflector corresponds to the plane of the air supply outlet, the air blown out from the periphery of the air supply outlet flows downwards along the outer side of the server bracket, the outer air curtain walkway enters the air-conditioning air suction pipe to form the outer cooling air curtain of the server bracket, the outer cooling air curtain of the server bracket can prevent the outside air from contacting the server bracket system, the fire extinguishing system comprises a flame-retardant gas storage tank, a fire extinguishing inlet pipeline, a fire extinguishing blowing pump, a fire extinguishing outlet pipeline and a fire extinguishing air suction pump, the outer end of the fire extinguishing inlet pipeline is connected with the flame-retardant gas storage tank, the inner end of the fire extinguishing inlet pipeline is provided with a plurality, the fire extinguishing air blowing pump is arranged on the fire extinguishing inlet pipeline and can pump out the fire-retardant gas in the fire-retardant gas storage tank through the fire extinguishing inlet pipeline, the outer end of the fire extinguishing outlet pipeline is connected with the fire-retardant gas storage tank, the inner end of the fire extinguishing outlet pipeline is provided with a plurality of fire extinguishing outlet pipelines, each inner end is connected with the other interface of the corresponding underground three-way valve, the fire extinguishing air suction pump is arranged on the fire extinguishing outlet pipeline and can suck the air in the machine room into the fire extinguishing outlet pipeline and pump the air back to the fire-retardant gas storage tank, the air conditioning device of the machine room server further comprises an intelligent control system, the intelligent control system comprises an intelligent controller, an alarm and a fire condition sensor, the intelligent controller is respectively connected with a ceiling three-way valve, an underground three-way valve, a circulating air pump, a fire extinguishing air suction pump, the alarm and the fire condition sensor and controls the valve port switches of, the fire sensor is installed in the internal cooling walkway, and the alarm is installed in a machine room or a machine room control room.

In order to optimize the technical scheme, the specific measures adopted further comprise:

when no server is placed in the server fixing groove, an inserting plate with the size of one side face being the same as that of the side face of the server is inserted into the slot to replace the server on the position, so that cooling air in the server support is circulated completely.

Be provided with the parallelly connected fire-retardant gas holding vessel that sets up of a plurality of in foretell fire-retardant gas bin, each fire-retardant gas holding vessel all is connected with the admission line of putting out a fire and the exit tube way of putting out a fire through respective holding vessel ooff valve, install fire-retardant gas concentration detector in the fire-retardant gas holding vessel, fire-retardant gas concentration detector is used for detecting the interior fire-retardant gas concentration of fire-retardant gas holding vessel, fire-retardant gas concentration detector is connected with intelligent control ware, and can be with signal transmission to intelligent control ware, intelligent control ware is connected and control holding vessel ooff valve with the holding vessel ooff valve and opens, when the holding vessel ooff valve is opened, this fire-retardant gas holding vessel inserts in putting out a fire the admission line and put out a fire the pipeline, otherwise, then fire-retardant gas.

The side wall and the top surface of the server are attached with the fire indication film, the fire indication film is a porous film and is provided with a sealed inner interlayer, indicating gas is filled in the inner interlayer, and the fire indication film is made of a low-melting-point material.

The fire indicating film is made of ethylene-vinyl acetate copolymer, indicating gas filled in the inner interlayer is inert gas, and the fire sensor is a corresponding inert gas detector.

The flame-retardant gas stored in the flame-retardant gas storage tank is carbon dioxide.

The intelligent controller is a computer or a PLC.

The invention relates to an air conditioning system, which integrates a fire extinguishing system in the air conditioning system, the whole structure of the air conditioning is improved, an air supply outlet and an air suction outlet of the air conditioner are respectively arranged right above and right below a server bracket system, the horizontal area of the air inlet is larger than the cross section area of the server bracket system, the air supply outlet, the air suction outlet and the server bracket system are in one-to-one correspondence, which is equivalent to that each server bracket system is provided with an independent air inlet and outlet air conditioner, the wind power of the air conditioner is larger, an air curtain is formed outside the server bracket and can prevent outside air from entering the server bracket, the arrangement can effectively reduce the cooling area of the air conditioner, only cools the periphery of the server bracket system, and the air curtain air conditioning device can be used for the fire extinguishing system, the specific usage is that when the temperature of a certain server is abnormally increased, a fire situation indicating film, the indicating gas in the fire indicating film escapes outwards, enters the inner cooling channel under the circulation action of inner cooling air, is detected by the fire sensor, the fire sensor sends a signal to the intelligent controller, the intelligent controller closes the air inlet channel branch corresponding to the abnormally heated server by controlling the corresponding three-way valve, the rest air inlet channel branches are not affected and normally operate, the intelligent controller starts the fire extinguishing system to operate, the fire extinguishing pipeline branch corresponding to the server with abnormal temperature rise is opened, the other fire extinguishing pipeline branches are closed, the flame retardant gas is blown out from the air supply outlet, is cooled by the heat exchange fins and is blown out downwards, an air curtain space formed by the flame retardant gas is formed between the air supply outlet and the air draft butt joint port, the whole server fixing frame is surrounded by flame-retardant gas, so that the server is prevented from igniting, and meanwhile, the intelligent controller controls the alarm to give an alarm; the fire indicating film is made of a low-melting-point material, indicating gas is sealed in the film, the film is made into a porous shape, the film is attached to a server shell and does not affect normal heat dissipation of a server, once the server shell is overheated, the fire indicating film is melted and emits the indicating gas, so that the server with overhigh temperature is detected on a server support system, and the server is most likely to catch fire or be in short circuit smoldering fire, so that the fire is discovered as soon as possible, and loss is reduced. It is worth mentioning that when the fire extinguishing air-conditioning device is used for extinguishing fire, the air composition outside the air curtain is not changed greatly, and workers can even stand beside the air curtain to observe the fire extinguishing condition of the air conditioner without worrying about the spread of the fire extinguishing gas. The air curtain is used for extinguishing fire, the whole structure is very simple, the cost is low, pipelines can be arranged systematically, and fire extinguishing at fixed points of all servers is realized through one fire extinguishing pipeline. The fire extinguishing system is provided with the flame-retardant gas storage tank, the fire extinguishing inlet pipeline, the fire extinguishing blowing pump, the fire extinguishing outlet pipeline and the fire extinguishing suction pump, the structures form a circulating system, and the flame-retardant gas sprayed to a machine room can be pumped back to the flame-retardant gas storage tank by the fire extinguishing outlet pipeline, so that the flame-retardant gas can be recycled to form circulation. The invention designs a multi-flame-retardant gas storage tank structure, when the flame-retardant gas concentration of one flame-retardant gas storage tank is detected to be reduced, the flame-retardant gas storage tank is closed, a new flame-retardant gas storage tank is opened at the same time, the flame-retardant gas storage tank operated in the fire extinguishing system is ensured to be high enough, and the flame-retardant gas storage tank after use is replaced by a worker at a later stage. The server rack has the advantages that cooling air circulation in the server rack is realized, the traditional servers are horizontally placed on a server rack system, the bottom plate of each layer of fixing rack is an impermeable flat plate, the servers are vertically placed, each layer of horizontal rack is provided with the air guide grooves, the space between the servers is permeable up and down, when air blows from top to bottom, the air can blow through the servers, the heat dissipation surfaces of the vertically placed servers are increased greatly, and the server rack can be matched with an air conditioning system with larger wind power to realize high-efficiency cooling.

Drawings

Fig. 1 is a schematic structural view of the present invention.

FIG. 2 is a block diagram of a plate;

FIG. 3 is a schematic view of a fire retardant gas storage tank;

FIG. 4 is a schematic view of a horizontal rack of the server rack system;

FIG. 5 is a top view of the horizontal shelf;

FIG. 6 is a pictorial view of a server rack system and an air curtain air conditioning system;

FIG. 7 is a schematic view of a fire indicating membrane;

fig. 8 is a cross-sectional view of a fire indicating membrane.

Wherein the reference numerals are: the system comprises a heat exchange system 1, a refrigeration compressor 11, a condenser 12, heat exchange plates 13, a metal grid plate 13a, a water passing plate 13b, an air curtain air conditioning system 2, an air supply outlet 21, an air conditioning air pumping pipe 22, an air pumping butt joint outlet 23, an outer air curtain runner 23a, an inner cooling runner 23b, a ceiling three-way valve 24, a ground bottom three-way valve 25, an annular butt joint frame 26, a butt joint groove 26a, a circulating air pump 27, a fire extinguishing system 3, a fire-retardant gas storage tank 31a, a storage tank switch valve 31b, a fire-retardant gas concentration detector 31c, a fire extinguishing inlet pipeline 32, a fire extinguishing blowing air pump 33, a fire extinguishing outlet pipeline 34, a fire extinguishing suction pump 35, a server support system 4, a base 41, a horizontal frame 42, a server fixing groove 42a, an air guide groove 42b, an insertion groove 42c, an insertion plate 42d, a support plate 43, Alarm 52, fire sensor 53, fire indicating membrane 6, indicating gas 61 and server 7.

Detailed Description

Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

The air conditioning device of the machine room server comprises a heat exchange system 1, wherein: the heat exchange system 1 comprises a refrigeration compressor 11, a condenser 12 and heat exchange sheets 13 connected to a circulation pipeline, the refrigeration compressor 11 enables cooling liquid in the circulation pipeline to flow in a circulation mode, the condenser 12 is used for cooling the cooling liquid in the circulation pipeline, the heat exchange sheets 13 are arranged in parallel, each heat exchange sheet 13 comprises a plurality of layers of horizontally arranged metal grid plates 13a, gaps are formed among the metal grid plates 13a, the metal grid plates 13a are fixed together through water running plates 13b, the water running plates 13b are located on two sides of each metal grid plate 13a, cavities are formed in the metal grid plates 13a and the water running plates 13b, the cooling liquid in the circulation pipeline can flow through the heat exchange sheets 13 through the cavities of the metal grid plates 13a and the water running plates 13b to cool the heat exchange sheets 13, the heat exchange sheets 13 are located on the ceiling of a machine room, and the air conditioning device of the machine room server further comprises an air curtain air conditioning system 2, The fire extinguishing system 3 and the server support system 4, the air curtain air conditioning system 2 comprises an air supply outlet 21 arranged on the ceiling of the machine room, an air draft butt joint outlet 23 arranged on the floor of the machine room and an air conditioning air pumping pipe 22, the upper part of the air conditioning air pumping pipe 22 is butted with the air supply outlet 21 through a connector of a ceiling three-way valve 24, the lower part of the air conditioning air pumping pipe 22 is led out from the ground and is butted with the air draft butt joint outlet 23 through a connector of a ground three-way valve 25, a heat exchange sheet 13 is positioned under the air supply outlet 21, the opening of the air supply outlet 21 is vertically downward, an annular butt joint frame 26 is fixed in the air draft butt joint outlet 23, the annular butt joint frame 26 divides the air draft butt joint outlet 23 into an outer air curtain passage 23a and an inner cooling passage 23b, the upper part of the annular butt joint frame 26 is provided with a butt joint groove 26a which is connected with the bottom of the, the circulating air pump 27 can suck air in the machine room into the air-conditioning air pumping pipe 22 from the air pumping butt joint port 23 and blow the air in the air-conditioning air pumping pipe 22 out from the air supply port 21, the server support system 4 comprises a base 41, a horizontal frame 42 and a support plate 43, the base 41 is of a horn-shaped structure, the upper part is large, the lower part is small, the lower opening of the base 41 is fixedly connected with the butt joint groove 26a, the inner cooling walkway 23b is positioned at the inner side of the base 41, the outer air curtain walkway 23a is positioned at the outer side of the base 41, the upper opening of the base 41 is fixedly connected with the horizontal frame 42 at the bottommost layer, the number of the horizontal frames 42 is a plurality, the horizontal frames are uniformly and horizontally arranged, the size and the structure are the same, the horizontal frames 42 are fixedly connected through the vertical support plate 43, the upper surface of the horizontal frame 42 is provided with a plurality of server fixing, and the length of the server fixing groove 42a is the same as that of the air guide groove 42b, when the horizontal shelf 42 is full of servers, the upper part of the server is close to the lower surface of the upper horizontal shelf 42, an air gap is formed between the servers due to the existence of the air guide groove 42b, the air blown out from the middle part of the air supply opening 21 flows downwards through the air gap and enters the air conditioning air pumping pipe 22 through the internal cooling passage 23b to form the cooling air circulation in the server support, an air curtain air deflector 44 is arranged on the outer side of the external air curtain passage 23a, the air curtain air deflector 44 is arranged on the outer side of the server support system 4, one surface of the air curtain air deflector 44 facing the external air curtain passage 23a is smooth and vertical to the upper end of the surface, the plane defined by the upper end of the air curtain air deflector 44 corresponds to the size of the plane of the air supply opening 21, the air blown out from the periphery of the air supply opening 21 flows downwards along the outer side of the, the external cooling air curtain of the server bracket is formed, the external cooling air curtain of the server bracket can prevent external air from contacting the server bracket system 4, the fire extinguishing system 3 comprises a fire-retardant gas storage tank 31, a fire extinguishing inlet pipeline 32, a fire extinguishing blowing pump 33, a fire extinguishing outlet pipeline 34 and a fire extinguishing suction pump 35, the outer end of the fire extinguishing inlet pipeline 32 is connected with the fire-retardant gas storage tank 31, the inner end of the fire extinguishing inlet pipeline 32 is provided with a plurality of fire-retardant gas storage tanks, each inner end is connected with the other interface of the corresponding ceiling three-way valve 24, the fire extinguishing blowing pump 33 is arranged on the fire extinguishing inlet pipeline 32 and can pump out the fire-retardant gas in the fire-retardant gas storage tank 31 through the fire extinguishing inlet pipeline 32, the outer end of the fire extinguishing outlet pipeline 34 is connected with the fire-retardant gas storage tank 31, the inner end of the fire extinguishing outlet pipeline 34 is provided with, can be with the computer lab air suction fire extinguishing outlet pipe way 34, and pump back fire-retardant gas storage tank 31, computer lab server air conditioning equipment still includes intelligence control system 5, intelligence control system 5 includes intelligent control ware 51, alarm 52 and condition of a fire inductor 53, intelligence control ware 51 respectively with ceiling three-way valve 24, ground bottom three-way valve 25, circulating air pump 27, fire extinguishing blower 33, put out a fire aspirator pump 35, alarm 52 and condition of a fire inductor 53 are connected, and control ceiling three-way valve 24 and the valve port switch of ground bottom three-way valve 25, circulating air pump 27, the operation of fire extinguishing blower 33 and fire extinguishing aspirator pump 35, receive condition of a fire inductor 53 signal and control alarm 52 and report to the police, condition of a fire inductor 53 is installed in interior cooling walkways 23b, alarm 52 is installed in computer lab or computer lab control room.

In the embodiment, a slot 42c is disposed on a side of the server fixing groove 42a close to the air guiding groove 42b, and when no server is disposed in the server fixing groove 42a, an insert plate 42d having a side surface with the same size as that of the server side surface is inserted into the slot 42c to replace the server in the position, so that the cooling air circulation in the server rack is complete.

In the embodiment, a plurality of fire-retardant gas storage tanks 31a are arranged in parallel in the fire-retardant gas storage tank 31, each fire-retardant gas storage tank 31a is connected with a fire-extinguishing inlet pipeline 32 and a fire-extinguishing outlet pipeline 34 through a respective storage tank switching valve 31b, a fire-retardant gas concentration detector 31c is arranged in each fire-retardant gas storage tank 31a, the fire-retardant gas concentration detector 31c is used for detecting the concentration of fire-retardant gas in the fire-retardant gas storage tank 31a, the fire-retardant gas concentration detector 31c is connected with the intelligent controller 51, and can transmit the signal to the intelligent controller 51, the intelligent controller 51 is connected with the storage tank switch valve 31b and controls the storage tank switch valve 31b to be opened and closed, when the storage tank switch valve 31b is opened, the fire-retardant gas storage tank 31a is connected to the fire extinguishing inlet pipe 32 and the fire extinguishing outlet pipe 34, and vice versa, the fire-retardant gas storage tank 31a is blocked from the fire extinguishing inlet pipe 32 and the fire extinguishing outlet pipe 34.

In the embodiment, the side wall and the top surface of the server are attached with the fire indication film 6, the fire indication film 6 is a porous film, the fire indication film 6 is provided with a sealed inner interlayer, the inner interlayer is filled with the indication gas 61, and the fire indication film 6 is made of a low-melting-point material.

In the embodiment, the fire indication film 6 is made of ethylene-vinyl acetate copolymer, the indicating gas 61 filled in the inner interlayer is inert gas, and the fire sensor 53 is a corresponding inert gas detector.

In the embodiment, the flame retardant gas stored in the flame retardant gas storage tank 31a is carbon dioxide.

In the embodiment, the intelligent controller 51 is a computer or a PLC.

The using method of the invention is as follows: the servers 7 are fixed on the server support system 4, air gaps are arranged among the servers 7, after an external cooling circulation system is started, the heat exchange fins 13 are cold sources, air blown out from the air supply opening 21 is cooled by the heat exchange fins 13 and blown downwards, air is continuously sucked by the air suction butt joint opening 23, so that air blown out from the air supply opening 21 is sucked by the air suction butt joint opening 23, a server support external cooling air curtain is formed between the air supply opening 21 and the external air curtain runner 23a, a server support internal cooling air circulation is formed between the air supply opening 21 and the internal cooling runner 23b, the server support system 4 is completely positioned in an air curtain space, the server support external cooling air curtain and the server support internal cooling air circulation cool the inner side and the outer side of the servers 7 together, when the temperature of a certain server 7 rises abnormally, the fire indication film 6 attached to the shell of the server 7 is heated and melted, and the indication gas in the fire indication film 6 escapes, and then enters the inner cooling walkway 23b following the circulation of the cooling air in the server rack, and after the indication gas is detected by the fire sensor 53, sends a signal to the intelligent controller 51, the intelligent controller 51 controls the corresponding ceiling three-way valve 24, the floor three-way valve 25 and the storage tank switching valve 31b, so that the air-conditioning branch corresponding to the server 7 with abnormal temperature rise is closed, the fire extinguishing pipeline branch is opened, the rest air conditioner branches are not affected, the intelligent controller 51 starts the fire extinguishing blowing pump 33 and the fire extinguishing suction pump 35 to operate, the flame retardant gas is blown out from the air supply outlet 21 and is cooled by the heat exchange sheets 13, blowing out downwards, forming an air curtain space formed by flame retardant gas between the air supply opening 21 and the air draft butt joint opening 23, so that the whole server rack system 4 is in the enclosure of the flame retardant gas, preventing the server 7 from igniting, and at the same time, the intelligent controller 51 controls the alarm 52 to alarm.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may be made by those skilled in the art without departing from the principle of the invention.

Claims

1. Computer lab server air conditioning equipment, including heat transfer system (1), characterized by: the heat exchange system (1) comprises a refrigeration compressor (11), a condenser (12) and heat exchange fins (13) which are connected to a circulation pipeline, the refrigeration compressor (11) enables cooling liquid in the circulation pipeline to flow in a circulating mode, the condenser (12) is used for cooling the cooling liquid in the circulation pipeline, the heat exchange fins (13) are arranged in parallel, the heat exchange fins (13) comprise a plurality of layers of horizontally arranged metal grid plates (13a) which are stacked, gaps are formed among the metal grid plates (13a), the metal grid plates (13a) are fixed together through water walking plates (13b), the water walking plates (13b) are located on two sides of the metal grid plates (13a), cavities are formed in the metal grid plates (13a) and the water walking plates (13b), and the cooling liquid in the circulation pipeline can flow through the cavities of the metal grid plates (13a) and the water walking plates (13b) and then flow through the heat exchange fins (13), make heat exchanger fin (13) cooling, heat exchanger fin (13) be located computer lab ceiling department, computer lab server air conditioning equipment still include air curtain air conditioning system (2), fire extinguishing system (3) and server support system (4), air curtain air conditioning system (2) including setting up supply-air outlet (21) on the computer lab ceiling, setting up convulsions docking port (23) and air-conditioning wind pumping pipe (22) on the computer lab floor, air-conditioning wind pumping pipe (22) upper portion through a interface and supply-air outlet (21) butt joint of ceiling three-way valve (24), air-conditioning wind pumping pipe (22) lower part is walked pipe from the ground, through an interface and convulsions docking port (23) butt joint of ground three-way valve (25), heat exchanger fin (13) be located supply-air outlet (21) under, supply-air outlet (21) opening vertically down, convulsions docking port (23) internal fixation have an annular to dock (26), annular butt joint frame (26) separate convulsions butt joint mouth (23) for outer air curtain pavement (23a) and interior cooling pavement (23b), annular butt joint frame (26) upper portion set up butt joint groove (26a), butt joint groove (26a) be connected with server support system (4) bottom, air conditioner wind pump pipe (22) on be fixed with a circulating air pump (27), circulating air pump (27) can be with the computer lab in gas from convulsions butt joint mouth (23) inhale air conditioner wind pump pipe (22) in to blow off the gas in air conditioner wind pump pipe (22) from supply-air outlet (21), server support system (4) including base (41), horizontal stand (42) and backup pad (43), base (41) be loudspeaker column structure, big end down, the lower opening and the butt joint groove (26a) fixed connection of base (41), the internal cooling walkway (23b) is positioned at the inner side of the base (41), the external air curtain walkway (23a) is positioned at the outer side of the base (41), the upper opening of the base (41) is fixedly connected with the horizontal frame (42) at the bottommost layer, the number of the horizontal frames (42) is a plurality, the horizontal frames are uniformly arranged horizontally and have the same size and structure, the horizontal frames (42) are fixedly connected with each other through a vertical supporting plate (43), the upper surface of the horizontal frame (42) is provided with a plurality of server fixing grooves (42a) and air guide grooves (42b) which penetrate through the upper and lower parts, the server fixing grooves (42a) and the air guide grooves (42b) are arranged at intervals, the length of the server fixing grooves (42a) is the same as that of the air guide grooves (42b), when the horizontal frame (42) is fully filled with servers, the lower surface of the horizontal frame (42) at the upper part of the servers is close to the lower surface of the air guide groove (42), and, the air blown out of the middle part of the air supply opening (21) flows downwards through the air leakage clearance and enters the air-conditioning air pumping pipe (22) through the inner cooling passage (23b) to form cooling air circulation in the server bracket, an air curtain air deflector (44) is arranged on the outer side of the outer air curtain passage (23a), the air curtain air deflector (44) is positioned on the outer side of the server bracket system (4), one surface of the air curtain air deflector (44) facing the outer air curtain passage (23a) is smooth, the upper end of the surface is a horizontal plane, the plane enclosed by the upper end of the air curtain air deflector (44) corresponds to the size and the position of the plane of the air supply opening (21), the air blown out of the periphery of the air supply opening (21) flows downwards along the outer side of the server bracket, the outer air curtain passage (23a) enters the air-conditioning air pumping pipe (22) to form an outer cooling air curtain of the server bracket, and the outer cooling air curtain of the server bracket can prevent the external air from contacting, the fire extinguishing system (3) comprises a fire-retardant gas storage tank (31), a fire extinguishing inlet pipeline (32), a fire extinguishing blowing pump (33), a fire extinguishing outlet pipeline (34) and a fire extinguishing suction pump (35), wherein the outer end of the fire extinguishing inlet pipeline (32) is connected with the fire-retardant gas storage tank (31), the inner end of the fire extinguishing inlet pipeline (32) is provided with a plurality of fire extinguishing suction pumps, each inner end is connected with another interface of a corresponding ceiling three-way valve (24), the fire extinguishing blowing pump (33) is installed on the fire extinguishing inlet pipeline (32), the fire-retardant gas in the fire-retardant gas storage tank (31) can be pumped out through the fire extinguishing inlet pipeline (32), the outer end of the fire extinguishing outlet pipeline (34) is connected with the fire-retardant gas storage tank (31), the inner end of the fire extinguishing outlet pipeline (34) is provided with a plurality of fire extinguishing outlet pipeline, each inner end is connected with another interface of a corresponding underground three-way valve (25), and the fire, the intelligent control system (5) comprises an intelligent controller (51), an alarm (52) and a fire sensor (53), the intelligent controller (51) is respectively connected with a ceiling three-way valve (24), a ground three-way valve (25), a circulating air pump (27), a fire extinguishing blowing pump (33), a fire extinguishing suction pump (35), the alarm (52) and the fire sensor (53) and controls the valve port switches of the ceiling three-way valve (24) and the ground three-way valve (25), the circulating air pump (27), the fire extinguishing blowing pump (33) and the fire extinguishing suction pump (35) to operate, receive a fire sensor (53) signal and control the alarm (52) to alarm, the fire sensor (53) is installed in an internal cooling walkway (23b), the alarm (52) is arranged in a machine room or a machine room control room.

2. The machine room server air conditioning apparatus according to claim 1, wherein: when no server is placed in the server fixing groove (42a), an inserting plate (42d) with the same size as the side face of the server is inserted into the inserting groove (42c) to replace the server in the position, so that cooling air circulation in the server support is complete.

3. The machine room server air conditioning apparatus according to claim 2, wherein: the fire-retardant gas storage tank is characterized in that a plurality of fire-retardant gas storage tanks (31a) which are arranged in parallel are arranged in the fire-retardant gas storage tank (31), each fire-retardant gas storage tank (31a) is connected with a fire-extinguishing inlet pipeline (32) and a fire-extinguishing outlet pipeline (34) through respective storage tank switch valves (31b), a fire-retardant gas concentration detector (31c) is arranged in each fire-retardant gas storage tank (31a), the fire-retardant gas concentration detector (31c) is used for detecting the gas concentration in the fire-retardant gas storage tanks (31a), the fire-retardant gas concentration detector (31c) is connected with an intelligent controller (51) and can transmit signals to the intelligent controller (51), the intelligent controller (51) is connected with the storage tank switch valves (31b) and controls the storage tank switch valves (31b) to be switched on and off, when the storage tank switch valves (31b) are switched on, the fire-retardant gas storage tanks (31a) are switched into the fire-extinguishing inlet pipeline (32) and the fire-extinguishing outlet pipeline (, on the contrary, the fire-retardant gas storage tank (31a) is isolated from the fire-extinguishing inlet pipe (32) and the fire-extinguishing outlet pipe (34).

4. The machine room server air conditioning apparatus according to claim 3, wherein: lateral wall and the top surface of server have fire indication membrane (6) with the subsides, fire indication membrane (6) be the porous membrane, fire indication membrane (6) have sealed interior intermediate layer, it has indicator gas (61) to fill in the interior intermediate layer, fire indication membrane (6) make by low melting point material.

5. The machine room server air conditioning apparatus according to claim 4, wherein: the fire indicating film (6) is made of ethylene-vinyl acetate copolymer, indicating gas (61) filled in the inner interlayer is inert gas, and the fire sensor (53) is a corresponding inert gas detector.

6. The machine room server air conditioning apparatus according to claim 5, wherein: the flame-retardant gas stored in the flame-retardant gas storage tank (31a) is carbon dioxide.

7. The machine room server air conditioning apparatus according to claim 6, wherein: the intelligent controller (51) is a computer or a PLC.