TW201423016A - Liquid cooling system and method for preventing leakage thereof - Google Patents
Liquid cooling system and method for preventing leakage thereof Download PDFInfo
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- TW201423016A TW201423016A TW102136244A TW102136244A TW201423016A TW 201423016 A TW201423016 A TW 201423016A TW 102136244 A TW102136244 A TW 102136244A TW 102136244 A TW102136244 A TW 102136244A TW 201423016 A TW201423016 A TW 201423016A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D31/00—Other cooling or freezing apparatus
Abstract
Description
本發明一般係關於冷卻系統的領域，尤其係關於一種液體冷卻系統和一種防止液體冷卻系統洩漏的方法。 The present invention relates generally to the field of cooling systems, and more particularly to a liquid cooling system and a method of preventing leakage of a liquid cooling system.
液體冷卻系統可以達成有效的冷卻效果。然而，液體冷卻系統中的液體洩漏可能在所冷卻的構件中造成電氣短路，其可能造成所冷卻的整體構件的總體損壞。對於封閉式液體冷卻系統(諸如電腦機房的液體冷卻系統)，於其中包含水和位於該水上方的空氣，因而該水的壓力大於外部的大氣壓力。因此當管線中有裂縫時，由於內部與外部之間的壓力差所造成的結果，液體可能經由裂縫從該系統向外洩漏，因而可能造成所冷卻的構件的電氣短路和甚至總體損壞。 A liquid cooling system achieves an effective cooling effect. However, liquid leakage in a liquid cooling system can cause electrical shorts in the cooled components, which can cause overall damage to the cooled integral components. For a closed liquid cooling system, such as a liquid cooling system in a computer room, water and air above the water are contained therein, and thus the pressure of the water is greater than the external atmospheric pressure. Therefore, when there is a crack in the pipeline, the liquid may leak outward from the system via the crack due to the pressure difference between the inside and the outside, and thus may cause an electrical short circuit and even overall damage of the cooled member.
因此，本領域極需提供一種液體冷卻系統和一種防止液體冷卻系統洩漏的方法，以解決先前技術中該上述問題。 Accordingly, there is a great need in the art to provide a liquid cooling system and a method of preventing leakage of a liquid cooling system to address the above mentioned problems in the prior art.
為了解決該上述問題，根據本發明之一個態樣提供一種液體冷卻系統，其包含：一封閉式冷卻液循環組合件，於其中具備循環流動的冷卻液和位於冷卻液上方的空氣；一真空泵，其導向封閉式冷卻液循環組合件中的空氣；以及一真空計，其用於測量封閉式冷卻液循環組合件中的空氣的壓力，其中當所測量的壓力大於預定壓力時開啟真空泵，而當所測量的壓力小於等於預定壓力時關閉真空泵；其中設定預定壓力以確使冷卻液的壓力小於等於大氣壓力。 In order to solve the above problems, according to an aspect of the present invention, a liquid cooling system comprising: a closed coolant circulation assembly having a circulating flow of cooling liquid and air above the cooling liquid; a vacuum pump, The air directed to the enclosed coolant circulation assembly; and a vacuum gauge for measuring the pressure of the air in the enclosed coolant circulation assembly, wherein the vacuum pump is turned on when the measured pressure is greater than the predetermined pressure The vacuum pump is turned off when the measured pressure is less than or equal to the predetermined pressure; wherein the predetermined pressure is set to ensure that the pressure of the coolant is less than or equal to the atmospheric pressure.
較佳為，設定預定壓力以確使冷卻液的最高壓力小於等於大氣壓力。 Preferably, the predetermined pressure is set to ensure that the maximum pressure of the coolant is less than or equal to the atmospheric pressure.
較佳為，冷卻液的最高壓力係冷卻液的最低點處的壓力。 Preferably, the highest pressure of the coolant is the pressure at the lowest point of the coolant.
較佳為，液體冷卻系統更包含一控制器，其中控制器的輸入端係連接於真空計的信號輸出端，而控制器的第一輸出端係連接於真空泵的控制端；以及該控制器根據來自信號輸出端的輸出信號控制第一輸出端的控制信號，以控制真空泵的開/關狀態。 Preferably, the liquid cooling system further comprises a controller, wherein the input end of the controller is connected to the signal output end of the vacuum gauge, and the first output end of the controller is connected to the control end of the vacuum pump; and the controller is based on An output signal from the signal output controls a control signal at the first output to control the on/off state of the vacuum pump.
較佳為，輸出信號係對應於所測量的壓力的類比信號。 Preferably, the output signal is an analog signal corresponding to the measured pressure.
較佳為，輸出信號係開關信號，其依所測量的壓力是否大於或小於等於預定壓力而切換。 Preferably, the output signal is a switching signal that switches depending on whether the measured pressure is greater than or equal to a predetermined pressure.
較佳為，液體冷卻系統更包含一警報器構件，其連接於控制器的第二輸出端，而當開啟真空泵的頻率大於預定頻率時，控制器透過第二輸出端控制警報器構件發出警示。 Preferably, the liquid cooling system further includes an alarm member coupled to the second output of the controller, and when the frequency of turning on the vacuum pump is greater than the predetermined frequency, the controller controls the alarm member to issue an alert through the second output.
較佳為，將預定頻率設定成大於每分鐘一次。 Preferably, the predetermined frequency is set to be greater than once per minute.
較佳為，封閉式冷卻液循環組合件包含：一封閉式冷卻液循環通道，其包括複數個序列連接的冷卻液管；一冷卻液箱，其連接於封閉式冷卻液循環通道中並位於封閉式冷卻液循環組合件的頂端部分；以及一冷卻液泵，其連接於封閉式冷卻液循環通道中，且冷卻液泵的冷卻液入口係連接於冷卻液箱的冷卻液出口。 Preferably, the closed coolant circulation assembly comprises: a closed coolant circulation passage comprising a plurality of serially connected coolant tubes; a coolant tank connected to the closed coolant circulation passage and located in the closed a top end portion of the coolant circulation assembly; and a coolant pump connected to the closed coolant circulation passage, and the coolant inlet of the coolant pump is connected to the coolant outlet of the coolant tank.
較佳為，封閉式冷卻液循環組合件更包含一熱交換裝置，其中熱交換裝置係連接於封閉式冷卻液循環通道中，且熱交換裝置的冷卻液入口係連接於冷卻液泵的冷卻液出口。 Preferably, the closed coolant circulation assembly further comprises a heat exchange device, wherein the heat exchange device is connected to the closed coolant circulation passage, and the coolant inlet of the heat exchange device is connected to the coolant of the coolant pump Export.
較佳為，封閉式冷卻液循環組合件更包含一散熱器，其中散熱器係連接於封閉式冷卻液循環通道中，且散熱器的冷卻液入口係連接於熱交換裝置的冷卻液出口。 Preferably, the enclosed coolant circulation assembly further comprises a radiator, wherein the radiator is connected to the closed coolant circulation passage, and the coolant inlet of the radiator is connected to the coolant outlet of the heat exchange device.
較佳為，真空泵的進氣口導向空氣，而真空計的測量計頭係連接於真空泵的進氣口。 Preferably, the inlet of the vacuum pump is directed to the air, and the gauge head of the vacuum gauge is connected to the inlet of the vacuum pump.
較佳為，冷卻液係水。 Preferably, the cooling liquid is water.
根據本發明之另一態樣，亦提供一種防止液體冷卻系統洩漏的方法，其包含：測量液體冷卻系統中位於冷卻液上方的空氣的壓力；判斷所測量的壓力是否大於預定壓力，而當所測量的壓力大於預定壓力時，對液體冷卻系統抽真空直到該空氣的壓力小於等於預定壓力，其中設定預 定壓力以確使冷卻液的壓力小於等於大氣壓力。 According to another aspect of the present invention, a method for preventing leakage of a liquid cooling system is provided, comprising: measuring a pressure of air located above a cooling liquid in a liquid cooling system; determining whether the measured pressure is greater than a predetermined pressure, and When the measured pressure is greater than the predetermined pressure, the liquid cooling system is evacuated until the pressure of the air is less than or equal to the predetermined pressure, wherein the preset is set The pressure is set such that the pressure of the coolant is less than or equal to atmospheric pressure.
較佳為，設定預定壓力以確使冷卻液的最高壓力小於等於大氣壓力。 Preferably, the predetermined pressure is set to ensure that the maximum pressure of the coolant is less than or equal to the atmospheric pressure.
較佳為，冷卻液的最高壓力係冷卻液的最低點處的壓力。 Preferably, the highest pressure of the coolant is the pressure at the lowest point of the coolant.
較佳為，當執行抽真空的頻率大於預定頻率時發出警示。 Preferably, an alert is issued when the frequency at which the vacuuming is performed is greater than the predetermined frequency.
較佳為，將預定頻率設定成大於每分鐘一次。 Preferably, the predetermined frequency is set to be greater than once per minute.
以下係本發明之效益：在本發明之液體冷卻系統中，真空泵係導向封閉式冷卻液循環組合件中的空氣，且真空計可以測量封閉式冷卻液循環組合件中的空氣的壓力。當所測量的壓力大於預定壓力時開啟真空泵，而當所測量的壓力小於等於預定壓力時關閉真空泵。換言之，真空泵與真空計的測量之間的合作讓冷卻液循環組合件中的空氣的壓力能夠一直低於預定壓力。設定預定壓力以確使冷卻液的壓力小於等於大氣壓力，亦即將預定壓力設定成只要冷卻液循環組合件中的空氣的壓力經由對液體冷卻系統抽真空而小於等於預定壓力的值，則冷卻液的壓力(亦即冷卻液自身所產生的壓力加上冷卻液循環組合件中的空氣的壓力)小於等於大氣壓力。 The following is an advantage of the present invention: In the liquid cooling system of the present invention, the vacuum pump directs air in the enclosed coolant circulation assembly, and the vacuum gauge measures the pressure of the air in the enclosed coolant circulation assembly. The vacuum pump is turned on when the measured pressure is greater than the predetermined pressure, and is turned off when the measured pressure is less than or equal to the predetermined pressure. In other words, the cooperation between the vacuum pump and the measurement of the vacuum gauge allows the pressure of the air in the coolant circulation assembly to be consistently lower than the predetermined pressure. The predetermined pressure is set such that the pressure of the coolant is less than or equal to the atmospheric pressure, that is, the predetermined pressure is set such that the coolant is equal to or less than a predetermined pressure as long as the pressure of the air in the coolant circulation assembly is evacuated by the liquid cooling system. The pressure (i.e., the pressure generated by the coolant itself plus the pressure of the air in the coolant circulation assembly) is less than or equal to atmospheric pressure.
因而，由於冷卻液的壓力小於等於大氣壓力，故僅外部的空氣可進入液體冷卻系統，同時即使液體冷卻系統中有裂縫，冷卻液仍不會向外洩漏。因此，本發明之液體冷卻系統防止系統中的冷卻液向外洩漏，因而避免所冷卻的構件的電氣短路和總體損壞。 Thus, since the pressure of the coolant is less than or equal to the atmospheric pressure, only the outside air can enter the liquid cooling system, and even if there is a crack in the liquid cooling system, the coolant does not leak outward. Thus, the liquid cooling system of the present invention prevents the coolant in the system from leaking outward, thereby avoiding electrical shorts and overall damage to the components being cooled.
同樣地，在防止本發明之液體冷卻系統洩漏的方法中，藉由測量液體冷卻系統中位於冷卻液上方的空氣的壓力、判斷所測量的壓力是否大於預定壓力(其中設定預定壓力以確使冷卻液的壓力小於等於大氣壓力)並根據判斷的結果對液體冷卻系統抽真空，已讓冷卻液的壓力能夠小於等於大氣壓力。如此，該方法防止系統中的冷卻液向外洩漏，故因而避免所冷卻的構件的電氣短路和總體損壞。 Similarly, in the method for preventing leakage of the liquid cooling system of the present invention, it is judged whether the measured pressure is greater than a predetermined pressure by measuring the pressure of the air above the cooling liquid in the liquid cooling system (where a predetermined pressure is set to ensure cooling) The pressure of the liquid is less than or equal to the atmospheric pressure) and the liquid cooling system is evacuated according to the result of the judgment, and the pressure of the cooling liquid can be made less than or equal to the atmospheric pressure. As such, the method prevents the coolant in the system from leaking outwards, thus avoiding electrical shorts and overall damage to the components being cooled.
本發明之發明內容納入將在實施方式中更詳細進一步說明的一連串簡化概念。本發明之發明內容既不暗示其欲限制欲保護的技術解決辦法的基本特徵與必要技術特徵，亦不暗示其欲定義欲保護的技術解決 辦法的保護範疇。 The inventive content of the present invention incorporates a series of simplified concepts that will be further described in further detail in the embodiments. The inventive content of the present invention does not imply that it intends to limit the basic features and necessary technical features of the technical solution to be protected, nor does it imply that it is intended to define a technical solution to be protected. The scope of protection of the approach.
以下將搭配所附圖式詳細說明本發明之優勢與特徵。 Advantages and features of the present invention will be described in detail below with reference to the accompanying drawings.
1‧‧‧封閉式冷卻液循環組合件 1‧‧‧Closed coolant circulation assembly
2‧‧‧真空泵 2‧‧‧vacuum pump
3‧‧‧真空計 3‧‧‧ Vacuum gauge
4‧‧‧控制器 4‧‧‧ Controller
5‧‧‧警報器構件 5‧‧‧Alarm components
11‧‧‧冷卻液 11‧‧‧ Coolant
12‧‧‧空氣 12‧‧‧ Air
13‧‧‧封閉式冷卻液循環通道 13‧‧‧Closed coolant circulation channel
14‧‧‧冷卻液箱 14‧‧‧ coolant tank
15‧‧‧冷卻液泵 15‧‧‧Coolant pump
16‧‧‧熱交換裝置 16‧‧‧Hot exchange unit
17‧‧‧散熱器 17‧‧‧ radiator
21‧‧‧真空泵2的控制端 21‧‧‧Control end of vacuum pump 2
31‧‧‧真空計3的信號輸出端 31‧‧‧Signal output of vacuum gauge 3
41‧‧‧控制器4的輸入端 41‧‧‧ Input of controller 4
42‧‧‧控制器4的第一輸出端 42‧‧‧ First output of controller 4
43‧‧‧控制器4的第二輸出端 43‧‧‧second output of controller 4
於文中作為本發明的一部分的本發明之以下圖式係用於了解本發明，在用於說明本發明的原理的所附圖式中例示其該等具體實施例與該等說明。在所附圖式中：第一圖例示根據本發明之具體實施例的液體冷卻系統的示意圖；第二圖例示根據本發明之具體實施例在控制器與液體冷卻系統的該等其他組件之間的連接關係的示意區塊圖；第三圖例示根據本發明之具體實施例防止液體冷卻系統洩漏的方法的示意流程圖。 The following drawings of the present invention are intended to be illustrative of the embodiments of the invention, In the drawings: the first figure illustrates a schematic diagram of a liquid cooling system in accordance with an embodiment of the present invention; the second illustration illustrates between the controller and the other components of the liquid cooling system in accordance with an embodiment of the present invention. A schematic block diagram of a connection relationship; a third diagram illustrating a schematic flow diagram of a method of preventing leakage of a liquid cooling system in accordance with an embodiment of the present invention.
進行描述眾多具體細節以在以下說明中提供對於本發明更完全的了解。然而，如熟習此項技術者顯而易見，可實施本發明而沒有一個或多個這些細節。在其他範例中，並未說明此領域已習知的某些技術特徵以避免與本發明混淆。 Numerous specific details are set forth to provide a more complete understanding of the invention. However, it will be apparent to those skilled in the art that the present invention may be practiced without one or more of these details. In other instances, certain technical features that are known in the art are not described to avoid obscuring the present invention.
如在第一圖中所顯示，根據本發明之具體實施例的液體冷卻系統包含一封閉式冷卻液循環組合件1、一真空泵2以及一真空計3。封閉式冷卻液循環組合件1中具備循環流動的冷卻液11和位於冷卻液11上方的空氣12，如在第一圖中所顯示。真空泵2導向封閉式冷卻液循環組合件1中的空氣12。真空計3係用於測量封閉式冷卻液循環組合件1中的空氣12的壓力。其中當真空計3所測量的壓力大於預定壓力時開啟真空泵2，而當真空計3所測量的壓力小於等於預定壓力時關閉真空泵2。 As shown in the first figure, a liquid cooling system in accordance with an embodiment of the present invention includes a closed coolant circulation assembly 1, a vacuum pump 2, and a vacuum gauge 3. The enclosed coolant circulation assembly 1 is provided with a circulating fluid 11 and an air 12 located above the coolant 11, as shown in the first figure. The vacuum pump 2 is directed to the air 12 in the enclosed coolant circulation assembly 1. The vacuum gauge 3 is used to measure the pressure of the air 12 in the enclosed coolant circulation assembly 1. The vacuum pump 2 is turned on when the pressure measured by the vacuum gauge 3 is greater than the predetermined pressure, and is turned off when the pressure measured by the vacuum gauge 3 is less than or equal to the predetermined pressure.
設定上述所提及的預定壓力以確使冷卻液11的壓力小於等於大氣壓力，亦即將預定壓力設定成只要冷卻液循環組合件1中的空氣12的壓力經由對液體冷卻系統抽真空而小於等於預定壓力的值，則冷卻液的壓力(亦即冷卻液11自身所產生的壓力加上冷卻液循環組合件1中的空氣12的壓力)小於等於大氣壓力。 The predetermined pressure mentioned above is set to ensure that the pressure of the coolant 11 is less than or equal to the atmospheric pressure, that is, the predetermined pressure is set as long as the pressure of the air 12 in the coolant circulation assembly 1 is less than or equal to a vacuum by the liquid cooling system. The value of the predetermined pressure, the pressure of the coolant (i.e., the pressure generated by the coolant 11 itself plus the pressure of the air 12 in the coolant circulation assembly 1) is less than or equal to the atmospheric pressure.
因而，由於冷卻液11的壓力小於等於大氣壓力，故僅外部的空氣可進入液體冷卻系統，同時即使液體冷卻系統中有裂縫，冷卻液11仍不會向外洩漏。因此，本發明之液體冷卻系統防止系統中的冷卻液向外洩漏，因而避免所冷卻的構件的電氣短路和總體損壞。 Thus, since the pressure of the coolant 11 is less than or equal to the atmospheric pressure, only the outside air can enter the liquid cooling system, and even if there is a crack in the liquid cooling system, the coolant 11 does not leak outward. Thus, the liquid cooling system of the present invention prevents the coolant in the system from leaking outward, thereby avoiding electrical shorts and overall damage to the components being cooled.
較佳為，可設定預定壓力以確使冷卻液11的最高壓力小於等於大氣壓力。換言之，冷卻液11中壓力最高位置處的壓力小於等於大氣壓力，因此冷卻液11在系統中的任何位置皆不會向外洩漏。 Preferably, the predetermined pressure can be set to ensure that the maximum pressure of the coolant 11 is less than or equal to the atmospheric pressure. In other words, the pressure at the highest pressure position in the coolant 11 is less than or equal to the atmospheric pressure, so the coolant 11 does not leak outward at any position in the system.
更較佳為，冷卻液11的最高壓力係冷卻液的最低點處的壓力。本具體實施例之液體冷卻系統係用於電腦機房的液體冷卻系統，其中的冷卻液11係留存於其中的空氣下方，其最高壓力係冷卻液11的最低點處的壓力。因此，應可保證只要已確使冷卻液11的最低點處的壓力小於等於大氣壓力，則冷卻液11在系統的任何位置皆不會向外洩漏。舉例來說，假設本具體實施例中的液體的深度係1米，則其中的最高壓力，亦即冷卻液11的最低點處的壓力，係1米水柱的壓力與位於冷卻液11上方的空氣12的壓力的總和。由於大氣壓力大約等於10米水柱的壓力，故該1米水柱的壓力與位於冷卻液11上方的空氣12的壓力的總和應小於等於10米水柱的壓力，換言之，位於冷卻液11上方的空氣12的壓力應小於等於9(10-1)米水柱的壓力。從而，可以將預定壓力設定成9米水柱的壓力或小於9米水柱的壓力。 More preferably, the highest pressure of the coolant 11 is the pressure at the lowest point of the coolant. The liquid cooling system of the present embodiment is used in a liquid cooling system of a computer room in which the coolant 11 is held under the air therein, and the highest pressure is the pressure at the lowest point of the coolant 11. Therefore, it should be ensured that the coolant 11 does not leak outward at any position of the system as long as it is confirmed that the pressure at the lowest point of the coolant 11 is less than or equal to the atmospheric pressure. For example, assuming that the depth of the liquid in the embodiment is 1 meter, the highest pressure therein, that is, the pressure at the lowest point of the coolant 11, is the pressure of the water column of 1 meter and the air above the coolant 11. The sum of the pressures of 12. Since the atmospheric pressure is approximately equal to the pressure of the water column of 10 meters, the sum of the pressure of the 1 meter water column and the pressure of the air 12 above the coolant 11 should be less than or equal to the pressure of the water column of 10 meters, in other words, the air 12 above the coolant 11 The pressure should be less than or equal to the pressure of 9 (10-1) meters of water column. Thus, the predetermined pressure can be set to a pressure of 9 meters of water column or a pressure of less than 9 meters of water column.
可以根據真空計3的指示手動控制真空泵2開啟和關閉。然而，較佳為，如在第二圖中所顯示，液體冷卻系統更包含一控制器4，其中控制器4的輸入端41係連接於真空計3的信號輸出端31，且控制器4的第一輸出端42係連接於真空泵2的控制端21(為了簡化，在第二圖中已移除GND(地)線等)。控制器4根據來自信號輸出端31的輸出信號控制第一輸出端42的控制信號，以控制真空泵2的開/關狀態。因而，已達成可以根據來自真空計3所測量的值自動控制真空泵2的開/關狀態，且已自動確使冷卻液11的壓力小於等於大氣壓力。在該具體實施例中，控制器4係PLC(可程式邏輯控制器)。然而，在實施上，控制器4可以係根據實際需求的任何適合的控制構件，諸如硬體電路等。 The vacuum pump 2 can be manually controlled to be turned on and off according to the instruction of the vacuum gauge 3. Preferably, however, as shown in the second figure, the liquid cooling system further comprises a controller 4, wherein the input 41 of the controller 4 is connected to the signal output 31 of the vacuum gauge 3, and the controller 4 The first output terminal 42 is connected to the control terminal 21 of the vacuum pump 2 (for simplicity, the GND (ground) line or the like has been removed in the second figure). The controller 4 controls the control signal of the first output terminal 42 based on the output signal from the signal output terminal 31 to control the on/off state of the vacuum pump 2. Thus, it has been achieved that the on/off state of the vacuum pump 2 can be automatically controlled based on the value measured from the vacuum gauge 3, and the pressure of the coolant 11 is automatically determined to be less than or equal to the atmospheric pressure. In this particular embodiment, controller 4 is a PLC (Programmable Logic Controller). However, in implementation, the controller 4 can be any suitable control component, such as a hardware circuit or the like, depending on actual needs.
真空計3透過上述所提及的信號輸出端31，將對應於所測量的壓力的輸出信號輸出至控制器4。較佳為，輸出信號係對應於所測量的壓力的類比信號。控制器4根據該類比信號判定所測量的壓力是否大於預定壓力。或者較佳為，輸出信號係依所測量的壓力是否大於/小於等於預定壓力而切換的開關信號。控制器4根據該開關信號的值判定所測量的壓力是否大於預定壓力。 The vacuum gauge 3 outputs an output signal corresponding to the measured pressure to the controller 4 through the signal output terminal 31 mentioned above. Preferably, the output signal is an analog signal corresponding to the measured pressure. The controller 4 determines whether the measured pressure is greater than a predetermined pressure based on the analog signal. Or preferably, the output signal is a switching signal that is switched depending on whether the measured pressure is greater than/less than or equal to a predetermined pressure. The controller 4 determines whether the measured pressure is greater than a predetermined pressure based on the value of the switching signal.
此外，從上述所提及的內容可以看出真空泵2不需要一直運行。在液體冷卻系統中冷卻液11的壓力保持小於大氣壓力的情況下，可以維護系統的內部與外部之間的壓力差一段時間，期間不需要開啟真空泵2。僅在真空計3所測量的壓力大於預定壓力時開啟真空泵2。應可了解若過於頻繁開啟真空泵，則意謂著該系統可能會嚴重洩漏。從而，較佳為，液體冷卻系統更包含一警報器構件5，其係連接於控制器4的第二輸出端43，如在第二圖中所顯示。當開啟真空泵2的頻率大於預定頻率時，控制器4透過第二輸出端43控制警報器構件5發出警示，以通知使用者液體冷卻系統可能已嚴重洩漏。 Further, it can be seen from the above-mentioned contents that the vacuum pump 2 does not need to be operated all the time. In the case where the pressure of the coolant 11 in the liquid cooling system is kept lower than the atmospheric pressure, the pressure difference between the inside and the outside of the system can be maintained for a period of time, during which the vacuum pump 2 does not need to be turned on. The vacuum pump 2 is turned on only when the pressure measured by the vacuum gauge 3 is greater than a predetermined pressure. It should be understood that if the vacuum pump is turned on too often, it means that the system may be seriously leaked. Thus, preferably, the liquid cooling system further includes an alarm member 5 coupled to the second output 43 of the controller 4, as shown in the second figure. When the frequency of turning on the vacuum pump 2 is greater than the predetermined frequency, the controller 4 controls the alarm member 5 to issue an alert through the second output terminal 43 to inform the user that the liquid cooling system may have been severely leaked.
可根據系統的具體情況將預定頻率設定成適合的值。較佳為，將預定頻率設定成大於每分鐘一次，諸如每分鐘三次，亦即若每分鐘三次以上開啟真空泵，則該系統發出警示。 The predetermined frequency can be set to an appropriate value according to the specific conditions of the system. Preferably, the predetermined frequency is set to be greater than once per minute, such as three times per minute, that is, if the vacuum pump is turned on more than three times per minute, the system issues a warning.
此外，封閉式冷卻液循環組合件1可以具有冷卻液11可以於其中循環的任何適合的結構。較佳為，如在第一圖中所顯示，本具體實施例之封閉式冷卻液循環組合件1包含一封閉式冷卻液循環通道13、一冷卻液箱14以及一冷卻液泵15。封閉式冷卻液循環通道13包括多個序列連接的冷卻液管。冷卻液箱14係連接於封閉式冷卻液循環通道13中並位於封閉式冷卻液循環組合件1的頂端部分上，因而上述所提及的空氣12係位於冷卻液箱14的較高部分。冷卻液泵15係連接於封閉式冷卻液循環通道13中，且冷卻液泵15的冷卻液入口係連接於冷卻液箱的冷卻液出口。因而，冷卻液箱14中的冷卻液11係經由冷卻液泵15泵入冷卻液循環通道13並經由冷卻液循環通道13流回冷卻液箱的冷卻液入口。 Furthermore, the enclosed coolant circulation assembly 1 can have any suitable structure in which the coolant 11 can circulate. Preferably, as shown in the first figure, the enclosed coolant circulation assembly 1 of the present embodiment includes a closed coolant circulation passage 13, a coolant tank 14, and a coolant pump 15. The enclosed coolant circulation passage 13 includes a plurality of serially connected coolant tubes. The coolant tank 14 is connected to the closed coolant circulation passage 13 and is located at the top end portion of the closed coolant circulation assembly 1, so that the above-mentioned air 12 is located at a higher portion of the coolant tank 14. The coolant pump 15 is connected to the closed coolant circulation passage 13, and the coolant inlet of the coolant pump 15 is connected to the coolant outlet of the coolant tank. Therefore, the coolant 11 in the coolant tank 14 is pumped into the coolant circulation passage 13 via the coolant pump 15 and flows back to the coolant inlet of the coolant tank via the coolant circulation passage 13.
更較佳為，如在第一圖中所顯示，該具體實施例之封閉式冷 卻液循環組合件1更包含一熱交換裝置16，其係連接於封閉式冷卻液循環通道13中。熱交換裝置16的冷卻液入口係連接於冷卻液泵14的冷卻液出口，因而冷卻液11流經熱交換裝置16的內部。熱交換裝置16接觸所冷卻的構件(諸如伺服器，在圖示中未顯示)，且用於藉由流經其內部的冷卻液11冷卻該構件。 More preferably, as shown in the first figure, the closed cold of the specific embodiment The liquid circulation assembly 1 further includes a heat exchange device 16 that is coupled to the closed coolant circulation passage 13. The coolant inlet of the heat exchange device 16 is connected to the coolant outlet of the coolant pump 14, and thus the coolant 11 flows through the inside of the heat exchange device 16. The heat exchange device 16 contacts the cooled member (such as a servo, not shown in the drawings) and serves to cool the member by the coolant 11 flowing therethrough.
熱交換裝置16接觸所冷卻的構件，且從熱交換裝置16的內部流出的冷卻液11的溫度增加。因此，更較佳為，如在第一圖中所顯示，封閉式冷卻液循環組合件1更包含一散熱器17，其係連接於封閉式冷卻液循環通道13中。散熱器17的冷卻液入口係連接於熱交換裝置16的冷卻液出口，因而從熱交換裝置16所流出具有較高溫度的冷卻液11流經散熱器17的內部，且經由散熱器17的散熱降回較低的溫度。 The heat exchange device 16 contacts the cooled member, and the temperature of the coolant 11 flowing out from the inside of the heat exchange device 16 increases. Therefore, more preferably, as shown in the first figure, the enclosed coolant circulation assembly 1 further includes a radiator 17 which is connected to the closed coolant circulation passage 13. The coolant inlet of the radiator 17 is connected to the coolant outlet of the heat exchange device 16, so that the coolant 11 having a higher temperature flowing out of the heat exchanger 16 flows through the inside of the radiator 17, and is radiated via the radiator 17. Drop back to a lower temperature.
此外，較佳為，在本具體實施例中，真空泵2的進氣口導向空氣12，以對液體冷卻系統抽真空。真空計3的測量計頭係連接於真空泵2的進氣口，以測量空氣12的真空度。 Further, preferably, in the present embodiment, the air inlet of the vacuum pump 2 is directed to the air 12 to evacuate the liquid cooling system. The measuring head of the vacuum gauge 3 is connected to the intake port of the vacuum pump 2 to measure the degree of vacuum of the air 12.
此外，上述所提及的冷卻液11可以係任何適合的液體。較佳為，在本具體實施例中的冷卻液係水。 Further, the above-mentioned coolant 11 may be any suitable liquid. Preferably, the coolant in the embodiment is water.
如在第三圖中所顯示，根據本發明之具體實施例防止液體冷卻系統洩漏的方法包含以下步驟： As shown in the third figure, a method of preventing leakage of a liquid cooling system in accordance with an embodiment of the present invention includes the following steps:
S101：測量液體冷卻系統中位於冷卻液上方的空氣的壓力。 S101: Measure the pressure of the air above the cooling liquid in the liquid cooling system.
S102：判斷所測量的壓力是否大於預定壓力。 S102: Determine whether the measured pressure is greater than a predetermined pressure.
當所測量的壓力大於預定壓力時，轉向步驟S103：對液體冷卻系統抽真空，直到該空氣的壓力小於等於預定壓力。 When the measured pressure is greater than the predetermined pressure, the process proceeds to step S103: the liquid cooling system is evacuated until the pressure of the air is less than or equal to the predetermined pressure.
設定預定壓力以確使冷卻液的壓力小於等於大氣壓力。預定壓力與如上述在液體冷卻系統的說明中所提及的預定壓力相同，且在此將不會詳細說明。應可了解藉由在步驟S101中測量液體冷卻系統中位於冷卻液上方的空氣的壓力，且藉由在步驟S102中判斷所測量的壓力是否大於預定壓力並根據判斷的結果對液體冷卻系統抽真空，以讓冷卻液的壓力能夠小於等於大氣壓力。如此，該方法防止系統中的冷卻液向外洩漏，故因而避免所冷卻的構件的電氣短路和總體損壞。 The predetermined pressure is set to ensure that the pressure of the coolant is less than or equal to the atmospheric pressure. The predetermined pressure is the same as the predetermined pressure mentioned in the description of the liquid cooling system as described above, and will not be described in detail herein. It should be understood that the pressure of the air located above the coolant in the liquid cooling system is measured in step S101, and by determining in step S102 whether the measured pressure is greater than a predetermined pressure and vacuuming the liquid cooling system according to the result of the determination In order to allow the pressure of the coolant to be less than or equal to atmospheric pressure. As such, the method prevents the coolant in the system from leaking outwards, thus avoiding electrical shorts and overall damage to the components being cooled.
較佳為，可設定預定壓力以確使冷卻液的最高壓力小於等於大氣壓力。換言之，冷卻液中壓力最高位置處的壓力小於等於大氣壓力，因此冷卻液在系統中的任何位置皆不會向外洩漏。 Preferably, the predetermined pressure can be set to ensure that the maximum pressure of the coolant is less than or equal to atmospheric pressure. In other words, the pressure at the highest pressure in the coolant is less than or equal to atmospheric pressure, so the coolant does not leak outward at any point in the system.
更較佳為，冷卻液的最高壓力係冷卻液的最低點處的壓力。 More preferably, the highest pressure of the coolant is the pressure at the lowest point of the coolant.
此外，較佳為，根據本發明之具體實施例防止液體冷卻系統洩漏的方法更包含當抽真空的頻率大於預定頻率時發出警示，以通知使用者液體冷卻系統可能已嚴重洩漏。可根據系統的具體情況將預定頻率設定成適合的值。較佳為，將預定頻率設定成大於每分鐘一次，諸如每分鐘三次，亦即若每分鐘三次以上開啟真空泵，則該系統發出警示。 Moreover, preferably, the method of preventing leakage of the liquid cooling system in accordance with an embodiment of the present invention further includes issuing an alert when the frequency of the evacuation is greater than the predetermined frequency to inform the user that the liquid cooling system may have been severely leaked. The predetermined frequency can be set to an appropriate value according to the specific conditions of the system. Preferably, the predetermined frequency is set to be greater than once per minute, such as three times per minute, that is, if the vacuum pump is turned on more than three times per minute, the system issues a warning.
已由該等上述所提及的具體實施例說明本發明。然而，應可了解該等上述所提及的具體實施例係為了示範與說明的目的，而非為了將本發明限制於該等所說明的具體實施例的範疇的目的。而且，熟習此項技術者應可察知本發明不限於該等上述所提及的具體實施例，且在本發明的範疇與精神內可以進行根據本發明的講述的各種修飾例和改寫例。由以下申請專利範圍和其相等範疇進一步定義本發明的保護範疇。 The invention has been described by the specific embodiments mentioned above. However, it is to be understood that the specific embodiments of the invention are intended to be illustrative and illustrative, and not to limit the invention to the scope of the particular embodiments. Further, those skilled in the art should understand that the present invention is not limited to the specific embodiments described above, and various modifications and adaptations according to the present invention may be made within the scope and spirit of the invention. The scope of protection of the present invention is further defined by the scope of the following claims and their equivalents.
1‧‧‧封閉式冷卻液循環組合件 1‧‧‧Closed coolant circulation assembly
2‧‧‧真空泵 2‧‧‧vacuum pump
3‧‧‧真空計 3‧‧‧ Vacuum gauge
11‧‧‧冷卻液 11‧‧‧ Coolant
12‧‧‧空氣 12‧‧‧ Air
13‧‧‧封閉式冷卻液循環通道 13‧‧‧Closed coolant circulation channel
14‧‧‧冷卻液箱 14‧‧‧ coolant tank
15‧‧‧冷卻液泵 15‧‧‧Coolant pump
16‧‧‧熱交換裝置 16‧‧‧Hot exchange unit
17‧‧‧散熱器 17‧‧‧ radiator
Claims (18)
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| CN201210441318.4A CN103813688A (en) | 2012-11-07 | 2012-11-07 | Liquid cooling system and method for preventing leakage of liquid cooling system |
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| US (1) | US20140124188A1 (en) |
| CN (1) | CN103813688A (en) |
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| EP3271798B1 (en) * | 2015-09-04 | 2023-12-20 | Hewlett Packard Enterprise Development LP | Pump based issue identification |
| US10810068B2 (en) | 2015-09-04 | 2020-10-20 | Hewlett Packard Enterprise Development Lp | Valve failure predictions |
| CN107608407B (en) * | 2017-09-06 | 2022-01-14 | 华为技术有限公司 | Negative-pressure liquid cooling system and control method thereof |
| US11592795B2 (en) * | 2019-02-08 | 2023-02-28 | Dell Products L.P. | System and method of managing liquids with information handling systems |
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| US5117677A (en) * | 1990-08-17 | 1992-06-02 | J.A.A.M. Revocable Trust | Two-stage vacuum monitoring and leak detection system for liquid product containment facilities |
| CN100339984C (en) * | 2004-04-08 | 2007-09-26 | 台达电子工业股份有限公司 | Radiating mould set |
| US20070193721A1 (en) * | 2006-02-21 | 2007-08-23 | Tilton Donald E | Automated Venting and Refilling of Multiple Liquid Cooling Systems |
| CN101358786A (en) * | 2007-08-05 | 2009-02-04 | 张柏炎 | Negative-pressure vacuum air conditioner |
| JP5403980B2 (en) * | 2008-09-19 | 2014-01-29 | インターナショナル・ビジネス・マシーンズ・コーポレーション | Apparatus and method for facilitating cooling of an electronic equipment rack using a water refrigerant compression system |
| JP5863643B2 (en) * | 2009-05-12 | 2016-02-16 | アイセオトープ リミテッド | Electronic system cooled |
| US20110253347A1 (en) * | 2010-04-19 | 2011-10-20 | Steve Harrington | Vacuum Pumped Liquid Cooling System for Computers |
| JP5624443B2 (en) * | 2010-12-02 | 2014-11-12 | 株式会社ササクラ | Air conditioner |
| CN202153817U (en) * | 2011-07-15 | 2012-02-29 | 孙晨啸 | Negative pressure liquid cooling cyclic system |
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