Machine room refrigeration outdoor equipment and machine room refrigeration system
By installing two air-water heat exchangers and a V-shaped finned dry cooler on the side of the chassis, the problem of excessively low subcooling was solved, improving refrigeration efficiency and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN SANWEI MECHANICAL & ELECTRICAL ENGINEERING CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-19
AI Technical Summary
In existing technology, the installation of four air-water heat exchangers on the four sides of the chassis results in excessively low subcooling and poor cooling efficiency.
The four air-water heat exchangers were replaced with two, which were placed on opposite sides of the chassis. The two finned dry coolers were arranged in a V-shape inside the chassis. The condenser fan was placed on the top of the chassis. The refrigerant entered the finned dry cooler through the main liquid inlet pipe, circulated and cooled, and then flowed out through the main liquid outlet pipe.
It improves refrigeration efficiency, reduces costs, and avoids the problem of excessively low cooling. The refrigerant is cooled down after circulating in the finned dry cooler before entering the indoor unit.
Smart Images
Figure CN224385995U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of refrigeration technology, and in particular to an outdoor equipment for computer room refrigeration and a computer room refrigeration system. Background Technology
[0002] Existing technologies, such as the computer room cooling system and cooling method disclosed in CN119545764A, involve a water collection tank connected to the inlet of a water-fluorine heat exchanger via a circulating water pump, and the outlet of the water-fluorine heat exchanger connected to the inlet of a rectangular sprayer via a spray water pump. The technical solution of this application, in addition to installing a dry cooler in the outdoor unit, also installs a water-fluorine heat exchanger and four air-water heat exchangers. The water-fluorine heat exchanger can first reduce the temperature of the refrigerant, and then the dry cooler can further reduce the temperature of the refrigerant.
[0003] The existing technology has the following problems:
[0004] In the existing technology, four air-water heat exchangers are set on the four sides of the chassis, resulting in low subcooling and poor cooling efficiency.
[0005] The above statements are for the purpose of providing background information in relation to this application only and do not necessarily constitute prior art. Summary of the Invention
[0006] In view of the above problems, this application provides an outdoor cooling equipment and a cooling system for computer rooms, which solves the technical problem in the prior art that the installation of four air-water heat exchangers on the four sides of the chassis results in excessively low subcooling and poor cooling efficiency.
[0007] To achieve the above objectives, in a first aspect, this application provides an outdoor cooling equipment for a computer room, including a chassis, two air-water heat exchangers, two finned dry coolers, a water-fluorine heat exchanger, a condenser fan, a spray mechanism, a water collection tank, a circulating water pump, and a first one-way valve.
[0008] Two air-water heat exchangers are respectively installed on two opposite sides of the chassis. Two finned dry coolers are installed in a V-shape inside the chassis. The two finned dry coolers are respectively installed opposite the two air-water heat exchangers. The two air-water heat exchangers are respectively installed on both sides of the two finned dry coolers. The condensing fan is installed on the top of the chassis.
[0009] The water-fluorine heat exchanger includes a water system inlet, a water system outlet, a fluorine system liquid inlet, and a fluorine system liquid outlet. The fluorine system liquid outlet is connected to two finned dry coolers via a main liquid refrigerant pipe. The two finned dry coolers are connected to one end of the indoor unit via a main liquid refrigerant pipe and a first one-way valve. The water system outlet is connected to the inlet of the spray mechanism. The spray mechanism sprays water flowing out of the water system outlet onto the two air-water heat exchangers. The water collection tank is located at the bottom of the two air-water heat exchangers. The circulating water pump is located at the bottom of the water collection tank. The outlet of the circulating water pump is connected to the water system inlet. The fluorine system liquid inlet is connected to the other end of the indoor unit.
[0010] Unlike existing technologies, the technical solution of this application uses two air-to-water heat exchangers respectively installed on two opposite sides of the chassis, and two finned dry coolers arranged in a V-shape inside the chassis, with the two finned dry coolers positioned opposite the two air-to-water heat exchangers, and the two air-to-water heat exchangers located on either side of the two finned dry coolers. The condensing fan is located at the top of the chassis; the refrigerant system outlet is connected to the two finned dry coolers via a main refrigerant inlet pipe. The main refrigerant outlet pipe is connected to one end of the indoor unit via the first one-way valve. In this way, the air first passes through two air-to-water heat exchangers, then through two finned dry coolers, and finally is discharged by the condenser fan. The four air-to-water heat exchangers are replaced with two air-to-water heat exchangers, which avoids excessively low cooling, improves cooling efficiency, reduces costs, and facilitates the refrigerant to enter the two finned dry coolers through the main refrigerant inlet pipe. After circulating in the two finned dry coolers, the refrigerant flows out through the main refrigerant outlet pipe, is cooled down, and then enters the indoor unit.
[0011] As one embodiment of this utility model, the outdoor cooling equipment of the computer room further includes a first liquid refrigerant pipe and a second liquid refrigerant pipe. The main liquid refrigerant pipe is connected to one end of the first liquid refrigerant pipe, the other end of the first liquid refrigerant pipe is connected to the middle of the second liquid refrigerant pipe, and the second liquid refrigerant pipe is connected to the finned dry cooler on the left side.
[0012] In this way, the cooperation between the first and second liquid refrigerant inlet pipes facilitates the entry of refrigerant into various positions of the finned dry cooler on the left side.
[0013] As one embodiment of this utility model, the outdoor cooling equipment of the computer room further includes a third liquid refrigerant pipe and a fourth liquid refrigerant pipe. The main liquid refrigerant pipe is connected to one end of the third liquid refrigerant pipe, the other end of the third liquid refrigerant pipe is connected to the middle of the fourth liquid refrigerant pipe, and the fourth liquid refrigerant pipe is connected to the finned dry cooler on the right side.
[0014] Thus, the cooperation of the third and fourth liquid refrigerant inlet pipes facilitates the entry of refrigerant into various positions of the finned dry cooler on the right side.
[0015] In one embodiment of this utility model, the outdoor cooling equipment of the computer room further includes a liquid distributor. The liquid distributor is disposed on the main liquid outlet refrigerant pipe and connected to the main liquid outlet refrigerant pipe. The finned dry cooler on the left is connected to the liquid distributor through two or more first refrigerant pipes, and the finned dry cooler on the right is connected to the liquid distributor through two or more second refrigerant pipes.
[0016] In this way, the refrigerant entering the finned dry cooler on the left and the finned dry cooler on the right can be recovered through the liquid separator and put into the main liquid outlet refrigerant pipe, which facilitates the recovery of refrigerant from both finned dry coolers.
[0017] In one embodiment of this utility model, two finned dry coolers are connected by two V-shaped brackets. The main inlet refrigerant pipe is mounted on one V-shaped bracket through a first bracket fixing plate, and the main outlet refrigerant pipe is mounted on the same V-shaped bracket through a second bracket fixing plate.
[0018] Thus, the main inlet refrigerant pipe can be easily fixed by the first bracket fixing plate, and the main outlet refrigerant pipe can be easily fixed by the second bracket fixing plate. The main inlet refrigerant pipe is located on the left side of the main outlet refrigerant pipe.
[0019] As one embodiment of this utility model, the outdoor cooling equipment of the computer room also includes a refrigerant pump and a liquid storage tank. The liquid storage tank is used to store refrigerant. The liquid storage tank is connected to the refrigerant pump. One end of the refrigerant pump is connected to the finned dry cooler, and the other end of the refrigerant pump is connected to one end of the indoor unit.
[0020] In this way, the storage tank is used to store refrigerant, and when needed, it is pumped into the refrigerant circulation pipeline by a fluorine pump for circulation, which can improve the service life of the refrigerant.
[0021] In one embodiment of this utility model, the chassis includes a left crossbeam, a right crossbeam, and a bottom crossbeam. The bottoms of the two finned dry coolers are mounted on the left and right crossbeams via a base plate. The two ends of the bottom crossbeam are connected to the left and right crossbeams respectively. The fluorine pump is installed above the bottom crossbeam, and the liquid storage tank is installed below the bottom crossbeam.
[0022] Thus, the two ends of the left crossbeam are fixed to the two columns on the front side of the chassis, the two ends of the right crossbeam are fixed to the two columns on the rear side of the chassis, and the two ends of the bottom crossbeam are fixed to the left and right crossbeams with bolts. The fluorine pump is installed above the bottom crossbeam, and the liquid storage tank is installed below the bottom crossbeam, which facilitates the setting of the fluorine pump and the liquid storage tank.
[0023] In one embodiment of this utility model, the bottom crossbeam is provided with two or more through holes, which are arranged in a specific pattern.
[0024] In this way, with two or more through holes, water can flow down from the air-water heat exchanger and fall into the water collection tank below.
[0025] In one embodiment of this utility model, the water-fluoride heat exchanger is installed in the water collection tank via a heat exchanger mounting bracket, and the heat exchanger mounting bracket has a U-shaped cross-section.
[0026] Thus, the water-fluorine heat exchanger is installed in the water collection tank via a heat exchanger mounting bracket. There is a gap between the bottom of the water-fluorine heat exchanger and the water collection tank. The heat exchanger mounting bracket has a U-shaped cross-section, which facilitates fixing the water-fluorine heat exchanger in the water collection tank.
[0027] To achieve the above objectives, in a second aspect, this application provides a computer room cooling system, including outdoor computer room cooling equipment as described in any of the above claims.
[0028] Unlike existing technologies, the computer room cooling system of this application replaces four air-water heat exchangers with two air-water heat exchangers to avoid excessively low cooling, improve cooling efficiency, reduce costs, and facilitate the refrigerant to enter the two finned dry coolers through the main liquid inlet refrigerant pipe. After circulating in the two finned dry coolers, the refrigerant flows out through the main liquid outlet refrigerant pipe, and after cooling, enters the indoor unit.
[0029] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description
[0030] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this application and other related content, and should not be considered as limitations on this application.
[0031] In the accompanying drawings of the instruction manual:
[0032] Figure 1 This is a system block diagram of a computer room cooling system according to an embodiment of this application;
[0033] Figure 2 This is a schematic diagram of the structure of an outdoor cooling system for a computer room according to one embodiment of this application;
[0034] Figure 3This is a schematic diagram of the internal structure of an outdoor cooling system for a computer room according to one embodiment of this application;
[0035] Figure 4 This is a schematic diagram of the internal structure of the outdoor cooling equipment of a computer room according to one embodiment of this application from another angle;
[0036] Figure 5 This is a schematic diagram of the internal structure of the outdoor cooling equipment for a computer room according to one embodiment of this application from another angle.
[0037] Figure 6 for Figure 5 A magnified view of a portion of point A in the middle.
[0038] The reference numerals used in the above figures are explained as follows:
[0039] 1. Chassis; 17. Left crossbeam; 18. Right crossbeam; 19. Bottom crossbeam; 20. Through hole; 21. Base plate.
[0040] 2. Air-water heat exchanger,
[0041] 3. Finned dry cooler; 31. V-shaped bracket; 32. First bracket fixing plate; 33. Second bracket fixing plate.
[0042] 4. Water-fluorine heat exchanger; 41. Water system inlet; 42. Water system outlet; 43. Fluorine system inlet; 44. Fluorine system outlet; 45. Main refrigerant inlet pipe; 46. Main refrigerant outlet pipe; 47. First refrigerant inlet pipe; 48. Second refrigerant inlet pipe; 49. Third refrigerant inlet pipe; 50. Fourth refrigerant inlet pipe; 51. Distributor head; 52. Heat exchanger mounting bracket.
[0043] 5. Condensing fan,
[0044] 6. Spraying mechanism,
[0045] 7. Water collection tank,
[0046] 8. Circulating water pump,
[0047] 9. First check valve,
[0048] 10. Electronic expansion valve
[0049] 11. Evaporator fan,
[0050] 12. Finned evaporator,
[0051] 13. Compressor
[0052] 14. Second check valve,
[0053] 15. Fluorine pump,
[0054] 16. Liquid storage tank. Detailed Implementation
[0055] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.
[0056] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.
[0057] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.
[0058] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, X and / or Y means: X exists, Y exists, and X and Y exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.
[0059] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.
[0060] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.
[0061] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.
[0062] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0063] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.
[0064] In the existing technology, four air-water heat exchangers are set on the four sides of the chassis, resulting in low subcooling and poor cooling efficiency.
[0065] In view of this, this application provides an outdoor cooling equipment for a computer room, comprising two air-water heat exchangers 2 respectively installed on opposite sides of a chassis 1, and two finned dry coolers 3 arranged in a V-shape inside the chassis 1, with the two finned dry coolers 3 positioned opposite the two air-water heat exchangers 2, and the two air-water heat exchangers 2 respectively located on opposite sides of the two finned dry coolers 3. A condenser fan 5 is installed on the top of the chassis 1; the refrigerant system outlet 44 is connected to the two finned dry coolers 3 via a main refrigerant inlet pipe 45. 3. The main liquid refrigerant pipe 46 is connected to one end of the indoor unit through the first one-way valve 9. In this way, the air first passes through two air-water heat exchangers 2, then through two finned dry coolers 3, and finally is discharged by the condenser fan 5. The four air-water heat exchangers 2 are replaced with two air-water heat exchangers 2 to avoid excessively low cooling, improve cooling efficiency, reduce costs, and facilitate the refrigerant to enter the two finned dry coolers 3 through the main liquid refrigerant pipe 45. After circulating in the two finned dry coolers 3, the refrigerant flows out through the main liquid refrigerant pipe 46, and after cooling down, enters the indoor unit.
[0066] According to some embodiments of this application, please refer to Figure 1 This embodiment relates to a computer room cooling system, including an outdoor cooling unit (outdoor unit) and an indoor unit. The outdoor cooling unit (outdoor unit) includes a water-fluorine heat exchanger 4, a condenser fan 5, a finned dry cooler 3, a spray mechanism 6, an air-water heat exchanger 2, a water collection tank 7, and a first one-way valve 9. The fluorine system inlet 43 of the water-fluorine heat exchanger 4 is connected to the indoor unit, and the fluorine system outlet 44 is connected to the refrigerant inlet of the finned dry cooler 3. The refrigerant outlet of the finned dry cooler 3 is connected to the first one-way valve 9. The water-fluorine heat exchanger 4 transfers the temperature of the refrigerant to the water, and the finned dry cooler 3 transfers the temperature of the refrigerant to the fins of the finned dry cooler 3. The heat from the fins of the finned dry cooler 3 is transferred to the air and discharged to the outside air by the condenser fan 5.
[0067] The water system outlet 42 of the water-fluoride heat exchanger 4 is connected to the inlet of the spray mechanism 6. The spray mechanism 6 sprays water onto the air-water heat exchanger 2, transferring the water temperature to the air-water heat exchanger 2. The air-water heat exchanger 2 transfers heat to the air. The air first passes through the air-water heat exchanger 2 for heat exchange, then passes through the finned dry cooler 3 for heat exchange, and finally is discharged into the outside air by the condenser fan 5. The water flows through the air-water heat exchanger 2 to the water collection tank 7, and is drawn to the water system inlet 41 of the water-fluoride heat exchanger 4 by the circulating water pump 8 set at the bottom of the water collection tank 7. The water cooled by the air-water heat exchanger 2 enters the water-fluoride heat exchanger 4 to continue circulating.
[0068] A float valve is installed in the water collection tank 7. The float valve is connected to tap water. When the water level in the water collection tank 7 is lower than the preset value, the valve is opened to replenish water in the water collection tank 7. In this embodiment, the principle and structure of the water-fluoride heat exchanger 4, the finned dry cooler 3, the air-water heat exchanger 2, the condenser fan 5, the spray mechanism 6, the water collection tank 7, and the first one-way valve 9 are conventional technical means, and will not be described in detail.
[0069] The indoor unit includes an electronic expansion valve 10, an evaporator fan 11, a finned evaporator 12, a compressor 13, and a second check valve 14. The first check valve 9 is connected to the refrigerant inlet of the electronic expansion valve 10, the refrigerant outlet of the electronic expansion valve 10 is connected to the refrigerant inlet of the finned evaporator 12, the refrigerant outlet of the finned evaporator 12 is connected to the inlet of the compressor 13, and the outlet of the compressor 13 is connected to the refrigerant system inlet 43 of the water-refrigerant heat exchanger 4. The two ends of the second check valve 14 are connected to the inlet and outlet of the compressor 13, respectively. The second check valve 14 can circulate refrigerant when the compressor 13 is not working. The air inlet of the evaporator fan 11 faces the finned evaporator 12 and blows air towards the finned evaporator 12.
[0070] In this embodiment, the principle structure of the electronic expansion valve 10, the evaporator fan 11, the finned evaporator 12, the compressor 13, and the second one-way valve 14 are conventional technical means, and will not be described in detail here.
[0071] According to some embodiments of this application, please refer to Figures 1 to 6 This embodiment relates to an outdoor cooling equipment for a computer room, including a chassis 1, two air-water heat exchangers 2, two finned dry coolers 3, a water-fluorine heat exchanger 4, a condenser fan 5, a spray mechanism 6, a water collection tank 7, a circulating water pump 8, and a first one-way valve 9.
[0072] Two air-water heat exchangers 2 are respectively installed on two opposite sides of the casing 1. Two finned dry coolers 3 are installed in a V-shape inside the casing 1. The two finned dry coolers 3 are respectively installed opposite the two air-water heat exchangers 2. The two air-water heat exchangers 2 are respectively installed on both sides of the two finned dry coolers 3. The condenser fan 5 is installed on the top of the casing 1.
[0073] The water-fluorine heat exchanger 4 includes a water system inlet 41, a water system outlet 42, a fluorine system liquid inlet 43, and a fluorine system liquid outlet 44. The fluorine system liquid outlet 44 is connected to two finned dry coolers 3 via a main liquid inlet refrigerant pipe 45. The two finned dry coolers 3 are connected to one end of the indoor unit via a main liquid outlet refrigerant pipe 46 and a first one-way valve 9. The water system outlet 42 is connected to the inlet of the spray mechanism 6. The spray mechanism 6 is used to spray the water flowing out of the water system outlet 42 onto the two air-water heat exchangers 2. The water collection tank 7 is located at the bottom of the two air-water heat exchangers 2. The circulating water pump 8 is located at the bottom of the water collection tank 7. The outlet of the circulating water pump 8 is connected to the water system inlet 41, and the fluorine system liquid inlet 43 is connected to the other end of the indoor unit.
[0074] In this embodiment, one air-water heat exchanger 2 corresponds to one finned dry cooler 3;
[0075] In this embodiment, the materials of the main inlet coolant pipe 45 and the main outlet coolant pipe 46 are conventional technologies, which will not be described in detail here.
[0076] In this embodiment, two air-water heat exchangers 2 are respectively installed on two opposite sides of the casing 1, and two finned dry coolers 3 are installed in a V-shape inside the casing 1, with the two finned dry coolers 3 respectively positioned opposite the two air-water heat exchangers 2. The two air-water heat exchangers 2 are respectively located on both sides of the two finned dry coolers 3, and the condenser fan 5 is installed on the top of the casing 1. The refrigerant system outlet 44 is connected to the two finned dry coolers 3 through the main refrigerant inlet pipe 45, and the two finned dry coolers 3 are connected to one end of the indoor unit through the main refrigerant outlet pipe 46 and the first one-way valve 9.
[0077] In this way, the air first passes through two air-water heat exchangers 2, then through two finned dry coolers 3, and finally is discharged by the condenser fan 5. Replacing four air-water heat exchangers 2 with two air-water heat exchangers 2 avoids excessively low cooling, improves refrigeration efficiency, reduces costs, and facilitates the refrigerant to enter the two finned dry coolers 3 through the main liquid inlet refrigerant pipe 45. After circulating in the two finned dry coolers 3, the refrigerant flows out through the main liquid outlet refrigerant pipe 46, and after being cooled, enters the indoor unit.
[0078] Originally, the four air-water heat exchangers 2 were installed on the four sides of the casing 1, but the effect was not ideal during the trial run, with the subcooling being too low. Now, the air-water heat exchangers 2 are installed on two sides.
[0079] In a refrigeration cycle, subcooling refers to the difference between the actual temperature of the refrigerant at the condenser outlet and its saturation temperature at the corresponding pressure.
[0080] Saturation temperature: The critical temperature at which a refrigerant changes from a gaseous state to a liquid state (or vice versa) under a certain pressure;
[0081] Subcooling: The refrigerant remains in a liquid state below its saturation temperature. The difference between this temperature and the saturation temperature is called subcooling (subcooling = saturation temperature - actual temperature; the larger the difference, the higher the subcooling). If the saturation temperature of a refrigerant at the condenser outlet pressure is 40℃, and the actual measured temperature is 35℃, then the subcooling is 5℃.
[0082] If the subcooling is too low, meaning the difference mentioned above is too small (even approaching 0 or being negative), it indicates that the actual temperature of the refrigerant at the condenser outlet is close to (or higher than) its saturation temperature. Under normal circumstances, a refrigeration system requires a certain degree of subcooling (usually 5-10°C) to ensure that the refrigerant enters the throttling device (such as an expansion valve) completely in a liquid state, improving refrigeration efficiency and preventing gaseous refrigerant from entering the evaporator and causing a decrease in cooling capacity. When the subcooling is too low, the refrigerant may partially evaporate into a gaseous state before entering the throttling device, leading to a decrease in cooling effect after throttling, reduced system energy efficiency, and potentially even compressor suction problems such as liquid carryover.
[0083] According to some embodiments of this application, optionally, such as Figure 3 As shown, the outdoor cooling equipment in the computer room also includes a first liquid refrigerant pipe 47 and a second liquid refrigerant pipe 48. The main liquid refrigerant pipe 45 is connected to one end of the first liquid refrigerant pipe 47, and the other end of the first liquid refrigerant pipe 47 is connected to the middle of the second liquid refrigerant pipe 48. The second liquid refrigerant pipe 48 is connected to the finned dry cooler 3 on the left side.
[0084] The main liquid refrigerant pipe 45 is connected to the first liquid refrigerant pipe 47, the first liquid refrigerant pipe 47 is connected to the second liquid refrigerant pipe 48, and the second liquid refrigerant pipe 48 is connected to the refrigerant pipe of the finned dry cooler 3 on the left side, so as to transport the cold coal to the finned dry cooler 3 and the finned dry cooler 3 to cool the cold coal.
[0085] The materials of the first liquid inlet pipe 47 and the second liquid inlet pipe 48 are the same as those of the main liquid inlet pipe 45.
[0086] Thus, the cooperation between the first liquid refrigerant inlet pipe 47 and the second liquid refrigerant inlet pipe 48 facilitates the entry of refrigerant into various positions of the finned dry cooler 3 on the left side.
[0087] According to some embodiments of this application, optionally, the outdoor cooling equipment of the computer room also includes a third liquid refrigerant pipe 49 and a fourth liquid refrigerant pipe 50. The main liquid refrigerant pipe 45 is connected to one end of the third liquid refrigerant pipe 49, the other end of the third liquid refrigerant pipe 49 is connected to the middle of the fourth liquid refrigerant pipe 50, and the fourth liquid refrigerant pipe 50 is connected to the finned dry cooler 3 on the right side.
[0088] The main liquid refrigerant pipe 45 is connected to the third liquid refrigerant pipe 49, the third liquid refrigerant pipe 49 is connected to the fourth liquid refrigerant pipe 50, and the fourth liquid refrigerant pipe 50 is connected to the refrigerant pipe of the finned dry cooler 3 on the right side, so as to transport the cold coal to the finned dry cooler 3 and cool the cold coal.
[0089] The materials of the third liquid coolant inlet pipe 49 and the fourth liquid coolant inlet pipe 50 are the same as those of the main liquid coolant inlet pipe 45.
[0090] Thus, the cooperation between the third liquid refrigerant inlet pipe 49 and the fourth liquid refrigerant inlet pipe 50 facilitates the entry of refrigerant into various positions of the finned dry cooler 3 on the right side.
[0091] According to some embodiments of this application, optionally, the outdoor cooling equipment of the computer room also includes a liquid distributor 51. The liquid distributor 51 is disposed on the main liquid outlet refrigerant pipe 46 and connected to the main liquid outlet refrigerant pipe 46. The finned dry cooler 3 on the left is connected to the liquid distributor 51 through two or more first refrigerant pipes, and the finned dry cooler 3 on the right is connected to the liquid distributor 51 through two or more second refrigerant pipes.
[0092] The main inlet refrigerant pipe 45 is connected to the distributor head 51. The finned dry cooler 3 on the left is connected to the distributor head 51 through two or more first refrigerant pipes (not shown in the figure), and the finned dry cooler 3 on the right is connected to the distributor head 51 through two or more second refrigerant pipes (not shown in the figure). The refrigerant is uniformly recovered to the distributor head 51 and then enters the main outlet refrigerant pipe 46. The refrigerant is connected to the inlet of the electronic expansion valve 10 through the first one-way valve 9.
[0093] In this way, the refrigerant entering the finned dry cooler 3 on the left and the finned dry cooler 3 on the right can be recovered through the liquid separator 51 and uniformly enter the main liquid outlet refrigerant pipe 46, which facilitates the recovery of refrigerant from both finned dry coolers 3.
[0094] According to some embodiments of this application, optionally, two finned dry coolers 3 are connected by two V-shaped brackets 31, the main inlet coolant pipe 45 is mounted on one V-shaped bracket 31 through the first bracket fixing plate 32, and the main outlet coolant pipe 46 is mounted on the same V-shaped bracket 31 through the second bracket fixing plate 33.
[0095] Figure 3 In the middle, the main liquid coolant inlet pipe 45 is fixed by the first bracket fixing plate 32;
[0096] Thus, the main inlet refrigerant pipe 45 can be easily fixed by the first bracket fixing plate 32, and the main outlet refrigerant pipe 46 can be easily fixed by the second bracket fixing plate 33. The main inlet refrigerant pipe 45 is located on the left side of the main outlet refrigerant pipe 46.
[0097] According to some embodiments of this application, optionally, such as Figure 4 As shown, the outdoor cooling equipment in the computer room also includes a refrigerant pump 15 and a liquid storage tank 16. The liquid storage tank 16 is used to store refrigerant. The liquid storage tank 16 is connected to the refrigerant pump 15. One end of the refrigerant pump 15 is connected to the finned dry cooler 3, and the other end of the refrigerant pump 15 is connected to one end of the indoor unit.
[0098] Thus, the storage tank 16 is used to store refrigerant, which can be pumped into the refrigerant circulation pipeline by the fluorine pump 15 when needed, thereby improving the service life of the refrigerant.
[0099] According to some embodiments of this application, optionally, such as Figure 4 As shown, the chassis 1 includes a left crossbeam 17, a right crossbeam 18, and a bottom crossbeam 19. The bottoms of the two finned dry coolers 3 are mounted on the left crossbeam 17 and the right crossbeam 18 via a base plate 21. The two ends of the bottom crossbeam 19 are connected to the left crossbeam 17 and the right crossbeam 18, respectively. The refrigerant pump 15 is mounted above the bottom crossbeam 19, and the liquid storage tank 16 is mounted below the bottom crossbeam 19.
[0100] The fluorine pump 15 is installed above the center of the bottom crossbeam 19, and the liquid storage tank 16 is located below the fluorine pump 15. The fluorine pump 15 and the liquid storage tank 16 work together to replenish the cold coal in the cold coal channel.
[0101] Thus, the two ends of the left crossbeam 17 are fixed to the two left and right columns on the front side of the chassis 1, the two ends of the right crossbeam 18 are fixed to the two left and right columns on the rear side of the chassis 1, and the two ends of the bottom crossbeam 19 are fixed to the left crossbeam 17 and the right crossbeam 18 by bolts. The fluorine pump 15 is installed above the bottom crossbeam 19, and the liquid storage tank 16 is installed below the bottom crossbeam 19, which facilitates the setting of the fluorine pump 15 and the liquid storage tank 16.
[0102] According to some embodiments of this application, optionally, the bottom crossbeam 19 is provided with two or more through holes 20, and the two or more through holes 20 are arranged in a row.
[0103] Thus, through two or more through holes 20, water flows down from the air-water heat exchanger 2 and falls into the water collection tank 7 below through the through holes 20.
[0104] According to some embodiments of this application, optionally, such as Figure 5 As shown, the water-fluoride heat exchanger 4 is installed in the water collection tank 7 via a heat exchanger mounting bracket 52, which has a U-shaped cross-section.
[0105] Thus, the water-fluoride heat exchanger 4 is installed in the water collection tank 7 via the heat exchanger mounting bracket 52. There is a gap between the bottom of the water-fluoride heat exchanger 4 and the water collection tank 7. The heat exchanger mounting bracket 52 has a U-shaped cross-section, which facilitates fixing the water-fluoride heat exchanger 4 in the water collection tank 7.
[0106] like Figure 6 As shown, the circulating water pump 8 is installed at the bottom of the water collection tank 7 via a bracket.
[0107] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.
[0108] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A machine room refrigeration outdoor unit, characterized by, It includes a chassis, two air-to-water heat exchangers, two finned dry coolers, a water-to-fluorine heat exchanger, a condenser fan, a spray mechanism, a water collection tank, a circulating water pump, and a first check valve. Two air-water heat exchangers are respectively installed on two opposite sides of the chassis. Two finned dry coolers are installed in a V-shape inside the chassis. The two finned dry coolers are respectively installed opposite the two air-water heat exchangers. The two air-water heat exchangers are respectively installed on both sides of the two finned dry coolers. The condensing fan is installed on the top of the chassis. The water-fluorine heat exchanger includes a water system inlet, a water system outlet, a fluorine system liquid inlet, and a fluorine system liquid outlet. The fluorine system liquid outlet is connected to two finned dry coolers via a main liquid refrigerant pipe. The two finned dry coolers are connected to one end of the indoor unit via a main liquid refrigerant pipe and a first one-way valve. The water system outlet is connected to the inlet of the spray mechanism. The spray mechanism sprays water flowing out of the water system outlet onto the two air-water heat exchangers. The water collection tank is located at the bottom of the two air-water heat exchangers. The circulating water pump is located at the bottom of the water collection tank. The outlet of the circulating water pump is connected to the water system inlet. The fluorine system liquid inlet is connected to the other end of the indoor unit.
2. The machine room refrigeration outdoor unit of claim 1, wherein, The outdoor cooling equipment in the computer room also includes a first liquid refrigerant inlet pipe and a second liquid refrigerant inlet pipe. The main liquid refrigerant inlet pipe is connected to one end of the first liquid refrigerant inlet pipe, and the other end of the first liquid refrigerant inlet pipe is connected to the middle of the second liquid refrigerant inlet pipe. The second liquid refrigerant inlet pipe is connected to the finned dry cooler on the left side.
3. The machine room refrigeration outdoor unit of claim 2, wherein, The outdoor cooling equipment in the computer room also includes a third liquid refrigerant inlet pipe and a fourth liquid refrigerant inlet pipe. The main liquid refrigerant inlet pipe is connected to one end of the third liquid refrigerant inlet pipe, and the other end of the third liquid refrigerant inlet pipe is connected to the middle of the fourth liquid refrigerant inlet pipe. The fourth liquid refrigerant inlet pipe is connected to the finned dry cooler on the right side.
4. The machine room refrigeration outdoor unit of claim 3, wherein The outdoor cooling equipment in the computer room also includes a liquid distributor, which is installed on and connected to the main liquid outlet refrigerant pipe. The finned dry cooler on the left is connected to the liquid distributor through two or more first refrigerant pipes, and the finned dry cooler on the right is connected to the liquid distributor through two or more second refrigerant pipes.
5. The outdoor cooling equipment for computer rooms according to claim 4, characterized in that, Two finned dry coolers are connected by two V-shaped brackets. The main inlet refrigerant pipe is mounted on one V-shaped bracket via a first bracket fixing plate, and the main outlet refrigerant pipe is mounted on the same V-shaped bracket via a second bracket fixing plate.
6. The outdoor cooling equipment for a computer room according to claim 1, characterized in that, The outdoor cooling equipment in the computer room also includes a refrigerant pump and a liquid storage tank. The liquid storage tank is used to store refrigerant and is connected to the refrigerant pump. One end of the refrigerant pump is connected to the finned dry cooler, and the other end of the refrigerant pump is connected to one end of the indoor unit.
7. The outdoor cooling equipment for a computer room according to claim 6, characterized in that, The chassis includes a left crossbeam, a right crossbeam, and a bottom crossbeam. The bottoms of the two finned dry coolers are mounted on the left and right crossbeams via a base plate. The two ends of the bottom crossbeam are connected to the left and right crossbeams respectively. The refrigerant pump is installed above the bottom crossbeam, and the liquid storage tank is installed below the bottom crossbeam.
8. The outdoor cooling equipment for computer rooms according to claim 7, characterized in that, The bottom crossbeam is provided with two or more through holes, which are arranged in a row.
9. The outdoor cooling equipment for a computer room according to claim 1, characterized in that, The water-fluoride heat exchanger is installed in the water collection tank via a heat exchanger mounting bracket, the heat exchanger mounting bracket having a U-shaped cross-section.
10. A computer room cooling system, characterized in that, Includes the outdoor cooling equipment for computer rooms as described in any one of claims 1 to 9.