Fire protection and heat dissipation structure between heat pipe rows suitable for server cabinets in rows

Abstract

The utility model discloses a heat pipe inter-row fire protection and heat dissipation structure suitable for arrayed server cabinets. The heat pipe inter-row fire protection and heat dissipation structure comprises two arrayed server cabinets, a closed channel and a plurality of inter-row fire protection and heat pipe heat dissipation units. Wherein the server cabinets are arranged in rows, the inter-row fire protection and heat pipe heat dissipation units are arranged among the rows of the cabinets, and the closed channel is used for isolating cold and hot air flows to ensure that the air flows in the channel are stable; each inter-row fire-fighting and heat pipe heat dissipation unit comprises a metal plate shell, a plurality of heat pipe heat exchangers and a fire-fighting module, wherein the heat pipe heat exchangers and the fire-fighting module are arranged in the metal plate shell. The heat pipe exchanger and an outdoor cold source form a refrigeration circulation loop through an air pipe and a liquid pipe. The fire-fighting module comprises a detector, a fire extinguishing agent storage device and a fire extinguishing spray head, and the detector and the spray head are arranged in the corresponding server cabinets and used for achieving accurate fire monitoring and fire extinguishing. According to the utility model, short-distance uniform air supply can be realized, and energy consumption is reduced; and meanwhile, modularized precise fire protection is provided, response is rapid, and maintenance is convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the server room heat removal and fire safety technical field relates to the heat dissipation and fire safety of the server cabinet in line, especially relates to a kind of heat pipe inter-row fire fighting and heat dissipation structure suitable for the server cabinet in line, and the integrated design of heat pipe technology and inter-row fire fighting system is realized, and the synergic optimization of efficient heat dissipation and accurate fire response is realized. BACKGROUND

[0002] Server cabinet generates a large amount of heat in the process of running, and most of the existing data centers adopt inter-row air conditioning or cold aisle closed heat dissipation scheme to realize effective heat dissipation of server cabinet by optimizing air flow organization. However, these schemes still have many problems in practical application. For example, the inter-row air conditioning system relies on high energy consumption, and the heat dissipation efficiency is easy to decline when facing high heat density equipment; the cold aisle closed scheme can improve local heat dissipation performance, but it needs complex sealing design and is difficult to adapt to the flexibility demand of cabinet layout. In addition, these heat dissipation schemes often focus on the adjustment of overall air flow, and cannot effectively solve the problem of local hot spot in the cabinet.

[0003] In addition to the heat dissipation problem, the fire safety problem of server cabinet cannot be ignored. Because the cabinet is full of high-density electronic components and cables, once short circuit or electrical failure occurs, fire accident is easy to cause. The airtightness of computer room environment and high equipment density further aggravate the spread speed of fire, so that the traditional fire extinguishing system is difficult to quickly and effectively put out the fire source. At present, the common fire extinguishing methods of data center mainly include gas fire extinguishing and sprinkler fire extinguishing, among which the gas fire extinguishing system (such as heptafluoropropane, carbon dioxide, etc.) can quickly cover the fire source area, but may cause corrosive damage to equipment in airtight environment; although the sprinkler fire extinguishing system has good fire extinguishing effect, it is easy to cause irreparable physical damage to server equipment because of using liquid extinguishing agent.

[0004] In addition, with the development trend of data center to high density, modularization and green energy saving, the traditional heat dissipation and fire protection technology is difficult to meet the dual needs of efficient heat dissipation and safety protection. Especially in the cabinet layout of inter-row structure, the spacing between cabinets is small, and the air flow channel is complex, so the collaborative design of fire extinguishing system and heat dissipation system is particularly important. However, the current technical scheme mostly separates the heat dissipation and fire protection functions, and it is difficult to realize the organic combination of the two. For example, some single heat dissipation optimization design in the prior art does not fully consider the space occupation and operation convenience of fire extinguishing system, resulting in low system integration and high design complexity; and the traditional fire extinguishing system ignores the influence on cabinet and inter-row heat conduction, further increasing the difficulty of computer room temperature control management.

[0005] In summary, there are many deficiencies in the heat dissipation and fire-fighting design of the existing server cabinet, therefore, how to design a structure that can efficiently solve the heat dissipation problem of the server cabinet and also consider the fire safety performance is an urgent technical problem to be solved. SUMMARY

[0006] (I) Technical problem

[0007] To solve at least one of the above-mentioned shortcomings and deficiencies in the prior art, the utility model aims to provide a heat pipe inter-row fire-fighting and heat dissipation structure suitable for a server cabinet, which integrates a heat pipe heat exchanger and a fire-fighting module in an inter-row heat dissipation unit and adopts a closed channel to isolate cold and hot air flows, thereby achieving close-range uniform air supply, reducing air conditioner terminal energy consumption, providing modular precise fire-fighting protection, ensuring early fire discovery and rapid response, not occupying cabinet space, being convenient to install and maintain, and having high engineering practicability.

[0008] (II) Technical scheme

[0009] The utility model adopts the technical scheme that:

[0010] A heat pipe inter-row fire-fighting and heat dissipation structure suitable for a server cabinet, which is used for improving the heat dissipation efficiency and fire-fighting response performance of the server cabinet, and comprises two server cabinets arranged in rows, a closed channel and a plurality of inter-row fire-fighting and heat pipe heat dissipation units, in particular:

[0011] The closed channel extends along the length direction and forms a closed space as a whole;

[0012] The two server cabinets arranged in rows are arranged on the two sides of the closed channel in a relative arrangement manner in the width direction, wherein each server cabinet arranged in rows comprises a plurality of server cabinets arranged in rows, and the air inlet side or the air outlet side of each server cabinet is in communication with the space of the closed channel;

[0013] The plurality of inter-row fire-fighting and heat pipe heat dissipation units are arranged in the rows of the two server cabinets arranged in rows, wherein each inter-row fire-fighting and heat pipe heat dissipation unit comprises a sheet metal shell, a plurality of heat pipe heat exchangers and at least one fire-fighting module, and wherein:

[0014] Each heat pipe heat exchanger is arranged vertically and parallelly in the sheet metal shell in the return air to supply air direction, and each heat pipe heat exchanger forms a refrigeration cycle loop with an outdoor cold source through an air pipe and a liquid pipe,

[0015] The fire-fighting module comprises at least a fire extinguishing agent reservoir and a plurality of detectors and fire extinguishing nozzles, wherein: the fire extinguishing agent reservoir is horizontally arranged above the metal shell, the detectors and fire extinguishing nozzles are distributed in the server cabinets on the left and right sides of the fire-fighting and heat pipe cooling unit, the detectors are used to monitor the fire information in the server cabinets in real time, and the fire extinguishing nozzles are connected to the fire extinguishing agent reservoir through pipelines and spray the fire extinguishing agent in a controlled manner when the detectors detect a fire.

[0016] Preferably, each fire-fighting and heat pipe cooling unit further comprises a fan arranged in the mesh front door or mesh rear door of the metal shell and an air conditioning controller installed on the vertical surface of the metal shell, each refrigeration cycle circuit is provided with an electromagnetic valve for controlling the flow and flow direction of refrigerant, the fan and the electromagnetic valves are in communication connection with the air conditioning controller, the air conditioning controller adjusts the fan speed and controls the flow and flow direction of refrigerant in real time according to the load condition, so as to realize accurate cooling control and energy consumption optimization and ensure stable operation of the server cabinet.

[0017] Further, the fire-fighting and heat pipe cooling unit further comprises temperature sensors, humidity sensors and / or air flow sensors, each sensor is arranged at the return air inlet and / or air supply inlet position of the metal shell to monitor the air flow parameters in real time, and each sensor is in communication connection with the air conditioning controller, and the air conditioning controller automatically adjusts the fan speed and refrigeration capacity according to the monitoring data.

[0018] Preferably, each fire-fighting and heat pipe cooling unit is provided with two groups of heat pipe heat exchangers, namely heat pipe heat exchanger I and heat pipe heat exchanger II, the heat pipe heat exchanger I forms a first refrigeration cycle circuit with an outdoor cold source through gas pipe I and liquid pipe I, and the heat pipe heat exchanger II forms a second refrigeration cycle circuit with the outdoor cold source through gas pipe II and liquid pipe II. The refrigerant working medium evaporates into refrigerant gas after absorbing heat from the server cabinet in the heat pipe heat exchanger I and / or heat pipe heat exchanger II, and then transfers heat to the outdoor cold source through gas pipe I and gas pipe II, and then cools into refrigerant liquid, and the refrigerant liquid returns to the heat pipe heat exchanger I and heat pipe heat exchanger II through liquid pipe I and liquid pipe II and evaporates again to absorb heat, so as to discharge heat from the machine room.

[0019] Further, the cold backup mode of the fire-fighting and heat pipe cooling unit: according to the load condition and backup demand, part of the units can be started, and the remaining units are not started as backup; or, the heat pipe heat exchanger I or heat pipe heat exchanger II in each unit can be started, and one of the refrigeration cycle circuits is selectively operated, so as to realize flexible deployment and energy-saving operation of the system.

[0020] Preferably, the closed aisle comprises a frame, an aisle door, an aisle roof and a rotating skylight, wherein the frame extends along the length direction as a whole, two server cabinets arranged in the column are arranged on both sides of the frame in the width direction, the aisle door is arranged at both ends of the frame in the length direction, and the aisle roof and the rotating skylight are arranged on the top of the frame.

[0021] Further, the rotating skylight is linked with a room-level building fire extinguishing system through a skylight controller and is automatically opened in a controlled manner when a fire signal is received; and the closed aisle further comprises an aisle lighting device arranged on the top of the aisle, and the aisle lighting device adopts an intelligent induction lighting system.

[0022] Preferably, the closed aisle is selectively set to a cold aisle closed mode or a hot aisle closed mode, in the cold aisle closed mode: the air inlet side of each server cabinet faces the closed aisle and the air outlet side communicates with the computer room environment, and the air outlet side of each inter-column fire extinguishing and heat pipe heat dissipation unit faces the closed aisle and the air inlet side communicates with the computer room environment; in the hot aisle closed mode: the air outlet side of each server cabinet faces the closed aisle and the air inlet side communicates with the computer room environment, and the air inlet side of each inter-column fire extinguishing and heat pipe heat dissipation unit faces the closed aisle and the air outlet side communicates with the computer room environment.

[0023] Preferably, the air supply surface of the inter-column fire extinguishing and heat pipe heat dissipation unit is provided with an adjustable air deflector, and the air supply angle is adjusted according to actual needs; an air filter is arranged outside the air return port of each unit, the air filter is of a detachable structure, and a flow guide plate is arranged between the air return port and the heat pipe heat exchanger to optimize the air flow distribution into the heat exchanger and improve the heat exchange efficiency.

[0024] Preferably, the fire extinguishing module is further provided with a fire control controller in communication connection with each detector and fire extinguishing nozzle thereof, the fire control controller is used for receiving the fire information sent by the detector, and the corresponding fire extinguishing nozzle is controlled to spray fire extinguishing agent according to a preset logic control, and the fire control controller is in communication connection with an air conditioner controller, a computer room dynamic environment monitoring or a building fire extinguishing system.

[0025] (Three) Technical effects

[0026] Compared with the prior art, the heat pipe inter-column fire extinguishing and heat dissipation structure suitable for the server cabinet arranged in the column provided by the utility model has the following technical effects:

[0027] (1) The inter-row fire-fighting and heat pipe heat dissipation unit has a heat pipe heat dissipation function, is used in cooperation with a closed channel for inter-row heat dissipation, effectively isolates cold and hot air flows, forms a stable cold air circulation path, realizes uniform air supply in a short distance, and has the following advantages.

[0028] (2) The inter-row fire-fighting and heat pipe heat dissipation unit also has a point-to-point fire-fighting function, and on the basis of traditional room-level building fire fighting, the fire-fighting module provided by each unit can accurately position and quickly respond to point-to-point fire fighting for adjacent server cabinets. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 FIG. 1 is a structural schematic view of a heat pipe inter-row fire-fighting and heat dissipation structure suitable for a row of server cabinets according to the present application.

[0030] Figure 2 FIG. 4 is a schematic view of the arrangement positions of a detector and a nozzle in a server cabinet in the present application.

[0031] Figure 3 FIG. 5 is a schematic view of the present application when one inter-row fire-fighting and heat pipe heat dissipation unit is used as a backup and is not started in the heat pipe inter-row fire-fighting and heat dissipation structure suitable for a row of server cabinets.

[0032] Figure 4 FIG. 6 is a schematic view of the present application when only a first refrigeration circulation loop is operated in the heat pipe inter-row fire-fighting and heat dissipation structure suitable for a row of server cabinets.

[0033] BRIEF DESCRIPTION OF REFERENCE NUMERALS

[0034] 1 - server cabinet, 1-1 mesh front door, 1-2 cabinet top plate, 1-3 mesh rear door, 2 - closed passage, 2-1 frame, 2-2 passage door, 2-3 passage top plate, 2-4 rotary sunroof, 3 - inter-row fire and heat pipe heat dissipation unit, 3-1 sheet metal shell, 3-2 heat pipe heat exchanger I, 3-3 heat pipe heat exchanger II, 3-4 fan, 3-5 air conditioner controller, 3-6 fire extinguishing module, 3-6-1 detector, 3-6-2 fire extinguishing agent reservoir, 3-6-3 fire extinguishing nozzle, 4-1 gas pipe I, 4-2 gas pipe II, 5-1 liquid pipe I, 5-2 liquid pipe II. DETAILED DESCRIPTION

[0035] For a better understanding of the present application, the following examples are set forth to further illustrate the content of the present application, so that the advantages and features of the present application can be more easily understood by those skilled in the art. It should be noted that the following description is only a preferred embodiment of the present application, but the content of the present application is not limited to the following examples. In fact, various modifications and changes can be made in the present application without departing from the scope or spirit of the present application, which will be apparent to those skilled in the art. For example, features shown or described as part of one embodiment can be used with another embodiment to produce yet another embodiment. Therefore, it is intended that the present application include such modifications and changes within the scope of the appended claims and their equivalents.

[0036] As Figure 1As shown, the heat pipe inter-row fire-fighting and heat dissipation structure suitable for the row server cabinet comprises a server cabinet 1, a closed passage 2 and a plurality of inter-row fire-fighting and heat pipe heat dissipation units 3, wherein: the server cabinet 1 is arranged in rows and comprises a mesh front door 1-1, a cabinet top plate 1-2 and a mesh rear door 1-3; the closed passage 2 is arranged between two rows of server cabinets 1 arranged oppositely and comprises a frame 2-1, a passage door 2-2, a passage top plate 2-3 and a rotary skylight 2-4, which is used for isolating cold and hot air flows and ensuring stable air flow in the passage; and the plurality of inter-row fire-fighting and heat pipe heat dissipation units 3 are arranged between the row server cabinets 1. As a preferred, the rotary skylight 2-4 is linked with a room-level building fire-fighting system through a skylight controller and is automatically opened in a controlled manner when receiving a fire signal, and the closed passage 2 further preferably comprises a passage lighting device arranged at the top of the passage, which adopts an intelligent induction lighting system and is used for automatically adjusting the lighting brightness in the passage according to the personnel activity state, so as to realize energy-saving control. In addition, the closed passage 2 is selectively set to a cold passage closed mode or a hot passage closed mode, wherein in the cold passage closed mode: the air inlet side of each server cabinet 1 is opposite to the closed passage 2 and the air outlet side is communicated with the computer room environment, and the air outlet side of each inter-row fire-fighting and heat pipe heat dissipation unit 3 is opposite to the closed passage 2 and the air inlet side is communicated with the computer room environment; and in the hot passage closed mode: the air outlet side of each server cabinet 1 is opposite to the closed passage 2 and the air inlet side is communicated with the computer room environment, and the air inlet side of each inter-row fire-fighting and heat pipe heat dissipation unit 3 is opposite to the closed passage 2 and the air outlet side is communicated with the computer room environment.

[0037] Each column fire and heat pipe heat dissipation unit 3 comprises a sheet metal shell 3-1 and a heat pipe heat exchanger I 3-2, a heat pipe heat exchanger II 3-3, a fan 3-4, an air conditioner controller 3-5 and a fire-fighting module 3-6 arranged in the sheet metal shell 3-1, and wherein: the heat pipe heat exchanger I 3-2, the heat pipe heat exchanger II 3-3 and the fan 3-4 are arranged vertically and in parallel in the sheet metal shell 3-1 in the direction from return air to supply air, the air conditioner controller 3-5 is installed on the vertical surface of the sheet metal shell 3-1, and the fire-fighting module 3-6 is arranged horizontally above the fan 3-4 in the sheet metal shell 3-1; the heat pipe heat exchanger I 3-2 forms a first refrigeration cycle circuit with the outdoor cold source through a gas pipe I 4-1 and a liquid pipe I 5-1; the heat pipe heat exchanger II 3-3 forms a second refrigeration cycle circuit with the outdoor cold source through a gas pipe II 4-2 and a liquid pipe II 5-2; the refrigerant working medium is evaporated into refrigerant gas after absorbing heat from the server cabinet 1 and then transfers heat to the outdoor cold source through the gas pipe I 4-1 and the gas pipe II 4-2, and is cooled into refrigerant liquid after cooling, and then flows back to the heat pipe heat exchanger I 3-2 and the heat pipe heat exchanger II 3-3 through the liquid pipe I 5-1 and the liquid pipe II 5-2 and is evaporated again to discharge heat from the machine room. As a preferred, an electromagnetic valve for controlling the flow and direction of the refrigerant is arranged on each refrigeration cycle circuit, the fan 3-4 and the electromagnetic valves are in communication connection with the air conditioner controller 3-5, the air conditioner controller 3-5 adjusts the speed of the fan 3-4 and controls the flow and direction of the refrigerant according to the load condition in real time, so as to realize accurate heat dissipation control and energy consumption optimization and ensure stable operation of the server cabinet. In addition, the column fire and heat pipe heat dissipation unit 3 is preferably provided with a temperature sensor, a humidity sensor and / or an air flow sensor, each sensor is arranged at the return air inlet and / or the supply air outlet position to monitor the air flow parameters in real time, and each sensor is in communication connection with the air conditioner controller, and the air conditioner controller automatically adjusts the fan speed and refrigeration capacity according to the monitoring data.

[0038] The fire-fighting module 3-6 is embedded in the column fire and heat pipe heat dissipation unit 3, and is specifically arranged horizontally in the sheet metal shell 3-1 of the column fire and heat pipe heat dissipation unit 3 and above the fan 3-4, and the fire-fighting module 3-6 is an integral part of the column fire and heat pipe heat dissipation unit 3. Specifically, as shown in Figure 2 The fire-fighting module 3-6 comprises a detector 3-6-1, a fire extinguishing agent reservoir 3-6-2 and a fire extinguishing nozzle 3-6-3, wherein:

[0039] The detector 3-6-1 and the fire extinguishing nozzle 3-6-3 are arranged in the server cabinet 1 corresponding to the fire extinguishing module 3-6, respectively. The detector 3-6-1 is used for monitoring the fire information in real time, and the fire extinguishing nozzle 3-6-3 is connected to the fire extinguishing agent reservoir 3-6-2 through a pipeline and sprays the fire extinguishing agent in a controlled manner when the detector 3-6-1 detects the fire. In addition, the fire extinguishing module 3-6 is provided with a fire controller in communication connection with each detector 3-6-1 and fire extinguishing nozzle 3-6-3 thereof through a data line. The fire controller is used for receiving the fire information sent by the detector 3-6-1 and controlling the corresponding fire extinguishing nozzle 3-6-3 to spray the fire extinguishing agent according to the preset logic control. The fire controller is preferably in communication connection with the air conditioner controller 3-5, the computer room dynamic environment monitoring or the building fire control system.

[0040] As a preferred, the detector 3-6-1 can include a temperature detection unit, a smoke detection unit and / or an infrared flame detection unit. The temperature detection unit is used for monitoring the temperature rise of the environment in the server cabinet 1 in real time. The smoke detection unit is used for detecting the smoke signal generated by the early fire. The infrared flame detection unit is used for accurately identifying the fire source position and the flame intensity. Each detection unit is in communication connection with the control unit through a data line. The fire extinguishing agent reservoir 3-6-2 is filled with clean gas fire extinguishing agent. The clean gas is selected from non-toxic, harmless and non-conductive gas fire extinguishing agent.

[0041] As a preferred, the air supply surface of the fire extinguishing and heat pipe heat dissipation unit 3 between the columns is provided with an adjustable air deflector, and the air supply angle is adjusted according to the actual demand. An air filter 3-7 is arranged outside the return air inlet of the heat pipe heat exchanger I 3-2, and the air filter 3-7 is a detachable structure.

[0042] Figure 3This is a schematic diagram of the heat pipe inter-row fire protection and heat dissipation structure for server cabinets in the present invention, with one inter-row fire protection and heat pipe cooling unit in standby mode. As shown in the figure, this module's cooling capacity backup mode selects to activate only a portion of the inter-row fire protection and heat pipe cooling units 3, while one unit is in standby mode and inactive. At this time, in the inter-row fire protection and heat pipe heat dissipation unit 3 involved in operation: the refrigerant absorbs the exhaust heat from the cabinet servers and evaporates into refrigerant gas in refrigeration cycle 1 formed by heat pipe heat exchanger I3-2, gas pipe I4-1, liquid pipe I5-1 and the outdoor cold source, and in refrigeration cycle 2 formed by heat pipe heat exchanger II3-3, gas pipe II4-2, liquid pipe II5-2 and the outdoor cold source. The heat is transferred to the outdoor cold source through gas pipe I4-1 and gas pipe II4-2 respectively, and then cooled into refrigerant liquid. The refrigerant liquid returns to heat pipe heat exchanger I3-2 and heat pipe heat exchanger II3-3 respectively through liquid pipe I5-1 and liquid pipe II5-2, absorbs heat again and evaporates, thereby discharging heat from the computer room; the refrigerant flow direction in refrigeration cycle 1 is shown by arrow A in the figure, the refrigerant flow direction in refrigeration cycle 2 is shown by arrow B in the figure, and the air flow direction is shown by arrow C in the figure.

[0043] Figure 4 This is a schematic diagram of the heat pipe inter-row fire protection and heat dissipation structure for server cabinets in the present invention, with only the refrigeration cycle running temporarily. As shown in the figure, the module's cooling capacity backup mode selects to activate only heat pipe heat exchanger I3-2 of each inter-row fire protection and heat pipe heat dissipation unit 3, while heat pipe heat exchanger II3-3 is not activated. At this point, heat pipe heat exchanger I3-2, gas pipe I4-1, liquid pipe I5-1, and the outdoor cooling source form refrigeration cycle I. The refrigerant absorbs exhaust heat from the server cabinets and evaporates into refrigerant gas. This heat is then transferred to the outdoor cooling source via gas pipe I4-1, where it cools to refrigerant liquid. The refrigerant liquid then flows back to heat pipe heat exchanger I3-2 via liquid pipe I5-1, where it absorbs heat again and evaporates, thereby discharging heat from the computer room. The refrigerant flow direction in refrigeration cycle I is indicated by arrow D in the figure, and the air flow direction is indicated by arrow E in the figure.

[0044] The above embodiments fully and effectively achieve the purpose of the present invention. Any equivalent or simple variations based on the structure, features, and principles described in the present invention are included within the scope of protection of the present invention. Those skilled in the art of the present invention may make various modifications, additions, or substitutions to the described embodiments, as long as they do not deviate from the structure of the present invention or exceed the scope defined by the claims, and all such modifications and additions shall fall within the scope of protection of the present invention.

Claims

1. A heat pipe inter-row fire-fighting and heat dissipation structure suitable for row server cabinets, comprising two row server cabinets, an enclosed channel and a plurality of inter-row fire-fighting and heat pipe heat dissipation units, characterized in that: the enclosed channel extends along the length direction and is integrally formed as an enclosed space; the two row server cabinets are arranged in opposite ways on the two sides of the width direction of the enclosed channel, wherein each of the row server cabinets comprises a plurality of server cabinets arranged in a row, and the air inlet side or the air outlet side of each server cabinet is in communication with the space of the enclosed channel; the plurality of inter-row fire-fighting and heat pipe heat dissipation units are distributed and arranged in the rows of the two row server cabinets, wherein each of the inter-row fire-fighting and heat pipe heat dissipation units comprises a sheet metal shell, a plurality of heat pipe heat exchangers and at least one fire-fighting module, and wherein: each of the heat pipe heat exchangers is arranged vertically and in parallel in the sheet metal shell in the direction from return air to supply air, and each of the heat pipe heat exchangers forms a refrigeration cycle loop with an outdoor cold source through air pipes and liquid pipes; the fire-fighting module comprises at least one fire extinguishing agent reservoir and a plurality of detectors and fire extinguishing nozzles, wherein the fire extinguishing agent reservoir is horizontally arranged above the sheet metal shell, the detectors and fire extinguishing nozzles are distributed and arranged in the server cabinets on the left and right sides of the inter-row fire-fighting and heat pipe heat dissipation unit, the detectors are used to monitor the fire information in the server cabinet in real time, and the fire extinguishing nozzles are connected to the fire extinguishing agent reservoir through pipelines and spray fire extinguishing agent in a controlled manner when the detectors detect fire. Each of the inter-row fire-fighting and heat pipe heat dissipation units further comprises a fan arranged in the mesh front door or mesh rear door of the sheet metal shell and an air conditioning controller installed on the vertical surface of the sheet metal shell, each of the refrigeration cycle loops is provided with an electromagnetic valve for controlling the flow and direction of refrigerant, the fan and each electromagnetic valve are in communication connection with the air conditioning controller, and the air conditioning controller adjusts the fan speed and controls the flow and direction of refrigerant in real time according to the load condition. The inter-row fire-fighting and heat pipe heat dissipation unit further comprises temperature sensors, humidity sensors and / or air flow sensors, each sensor is arranged at the return air inlet and / or supply air outlet position of the sheet metal shell to monitor the air flow parameters in real time, and each sensor is in communication connection with the air conditioning controller, and the air conditioning controller automatically adjusts the fan speed and refrigeration capacity according to the monitoring data. Each of the inter-row fire-fighting and heat pipe heat dissipation units is provided with two groups of heat pipe heat exchangers, namely heat pipe heat exchanger I and heat pipe heat exchanger II, the heat pipe heat exchanger I forms a first refrigeration cycle loop with an outdoor cold source through air pipe I and liquid pipe I, and the heat pipe heat exchanger II forms a second refrigeration cycle loop with an outdoor cold source through air pipe II and liquid pipe II. The backup mode of the inter-row fire-fighting and heat pipe heat dissipation unit: according to the load condition and backup demand, only part of the units are started, and the remaining units are not started as backup; or, the heat pipe heat exchanger I or the heat pipe heat exchanger II in each unit is started, and one of the refrigeration cycle loops is selectively operated to realize flexible allocation and energy-saving operation of the system. ​ 2. The heat pipe inter-row fire protection and heat removal structure suitable for use with a row of server cabinets of claim 1, wherein, ​ 3. The heat pipe inter-row fire protection and heat removal structure suitable for use with a row of server cabinets of claim 2, wherein, ​ 4. The heat pipe inter-row fire protection and heat removal structure suitable for use with a row of server cabinets of claim 1, wherein, ​ 5. The heat pipe inter-row fire protection and heat removal structure suitable for use with a row of server cabinets of claim 4, wherein, ​ 6. The heat pipe inter-row fire protection and heat removal structure suitable for use with a row of server cabinets of claim 1, wherein, The closed aisle comprises a frame, an aisle door, an aisle roof and a rotating skylight, wherein the frame extends in length direction as a whole, two server cabinets arranged in a row are arranged on both sides of the frame in width direction, the aisle door is arranged at both ends of the frame in length direction, and the aisle roof and the rotating skylight are arranged on the top of the frame.

7. The heat pipe inter-row fire protection and heat removal structure suitable for use with a row of server cabinets of claim 6, wherein, The rotating skylight is linked with a room-level building fire extinguishing system through a skylight controller and is automatically opened in a controlled manner when receiving a fire signal; and the closed aisle further comprises an aisle lighting device arranged on the top of the aisle, wherein the aisle lighting device adopts an intelligent induction lighting system.

8. The heat pipe inter-row fire protection and heat removal structure for a row of server cabinets of claim 1, wherein, The closed aisle is selectively set in a cold aisle closed mode or a hot aisle closed mode, in the cold aisle closed mode: the air inlet side of each server cabinet faces the closed aisle, and the air outlet side communicates with the computer room environment; and the air outlet side of each inter-row fire extinguishing and heat pipe cooling unit faces the closed aisle, and the air inlet side communicates with the computer room environment; in the hot aisle closed mode: the air outlet side of each server cabinet faces the closed aisle, and the air inlet side communicates with the computer room environment; and the air inlet side of each inter-row fire extinguishing and heat pipe cooling unit faces the closed aisle, and the air outlet side communicates with the computer room environment.

9. The heat pipe inter-row fire protection and heat removal structure for a row of server cabinets of claim 1, wherein, The air supply surface of the inter-row fire extinguishing and heat pipe cooling unit is provided with an adjustable air deflector, and the air supply angle is adjusted according to actual needs; an air filter is arranged outside the air return port of each unit, the air filter is of a detachable structure, and a flow guide plate is arranged between the air return port and the heat pipe heat exchanger to optimize the air flow distribution into the heat exchanger.

10. The heat pipe inter-row fire protection and heat removal structure for a row of server cabinets of claim 1, wherein, The fire extinguishing module is further provided with a fire control controller in communication connection with each detector and fire extinguishing nozzle thereof, the fire control controller is used for receiving fire information sent by the detector, and the corresponding fire extinguishing nozzle is controlled to spray fire extinguishing agent according to a preset logic control, and the fire control controller is in communication connection with an air conditioner controller, a computer room dynamic environment monitoring or a building fire extinguishing system.

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