Energy recovery system

Abstract

The invention provides an energy recovery system, which is used for carrying out energy recovery on air flow exhausted by electronic equipment, and comprises a flow guide mechanism detachably arranged on the exhaust side of the electronic equipment, and a flow guide cavity is formed in the flow guide mechanism and is used for guiding the air flow exhausted by the electronic equipment; the energy recovery mechanism is communicated with the flow guide mechanism, and the energy recovery mechanism comprises a first shell which is provided with a containing cavity in a limited mode; the heat exchange assembly is arranged in the containing cavity and comprises a plurality of heat exchange pipes, and the heat exchange pipes are suitable for conducting heat exchange on airflow flowing through the surfaces of the heat exchange pipes; and the turbine assembly is arranged on the downstream of the heat exchange assembly, the turbine assembly comprises a turbine and a generator set connected with the turbine, and the turbine is driven by the airflow flowing out of the heat exchange assembly to rotate so that the generator set can generate electricity.

Description

Technical Field

[0001] The present disclosure relates to the technical field of server heat dissipation, and in particular to an energy recovery system. Background Art

[0002] With the rapid development of information technology, the scale of data centers continues to expand, and the number and deployment density of servers are also increasing. Servers generate a lot of heat during operation. In order to maintain the normal operating temperature of the server, the server needs to be cooled in time.

[0003] In the prior art, in order to dissipate heat from the server, air cooling is usually used to discharge the heat from the server to the surrounding environment, or water cooling is used to transfer the heat from the server to other heat exchange systems. The air cooling method not only wastes a lot of energy, but also increases the load of the computer room air conditioning system. The water cooling method requires adding a heat exchange device to the server, which has the problem of large renovation work. Summary of the invention

[0004] In view of the above problems, the present disclosure provides an energy recovery system.

[0005] According to a first aspect of the present disclosure, an energy recovery system is provided for recovering energy from an airflow exhausted by an electronic device, the energy recovery system comprising: a guide mechanism detachably arranged on the exhaust side of the electronic device, the guide mechanism forming a guide cavity for guiding the airflow exhausted by the electronic device; an energy recovery mechanism connected to the guide mechanism, the energy recovery mechanism comprising: a first shell defining a accommodating cavity; a heat exchange component arranged in the accommodating cavity, the heat exchange component comprising a plurality of heat exchange tubes, the plurality of heat exchange tubes being suitable for exchanging heat with an airflow flowing through a surface of the heat exchange tube; a turbine component arranged downstream of the heat exchange component along a flow direction of the airflow, the turbine component comprising a turbine and a generator set connected to the turbine, the turbine rotating under the drive of the airflow flowing out of the heat exchange component, so that the generator set generates electricity.

[0006] According to an embodiment of the present disclosure, the plurality of heat exchange tubes are configured into a first heat exchange tube group arranged along a first direction and a second heat exchange tube group arranged along a second direction, and an acute angle is formed between the first direction and the second direction.

[0007] According to an embodiment of the present disclosure, the turbine assembly further includes: a guide cover, which is arranged on the turbine, and has a first opening and a second opening, and a flow guide channel is formed between the first opening and the second opening, and the first opening faces the heat exchange assembly, and the second opening is connected to the turbine; a rectifying assembly, and the rectifying assembly includes a plurality of rectifying blades, and the plurality of rectifying blades are arranged in an annular shape at one end of the guide cover close to the turbine to rectify the airflow entering the turbine. The area of ​​the first opening of the guide cover is larger than the area of ​​the second opening, and the guide cover is configured in a hyperbolic shape.

[0008] According to an embodiment of the present disclosure, the energy recovery mechanism further includes: a flow guide component, which is arranged between the air inlet of the first shell and the heat exchange component, and the flow guide component forms a flow guide channel to guide the airflow to the heat exchange component.

[0009] According to an embodiment of the present disclosure, the air guide component includes: a first air guide component connected to the air inlet of the first housing, the first air guide component forming a first air guide channel, the inner wall of the first air guide channel being configured in an arc shape along the flow direction of the airflow;

[0010] According to an embodiment of the present disclosure, the guide component also includes: a second guide member, which is arranged downstream of the first guide member, and the second guide member forms a second guide channel, and the inner wall of the second guide channel is formed into an arc with variable curvature along the flow direction of the airflow.

[0011] According to an embodiment of the present disclosure, the air guiding mechanism includes a second shell, and the cross-section of the second shell gradually decreases along the flow direction of the airflow.

[0012] According to an embodiment of the present disclosure, a plurality of rotatable guide plates are arranged at intervals in the second shell to form a plurality of guide cavities in the guide mechanism, and each guide cavity corresponds to one or more servers of the electronic device.

[0013] According to an embodiment of the present disclosure, the guide chamber is provided with a first sensor for collecting the temperature and / or velocity of the airflow; the energy recovery mechanism also includes a controller, which is configured to control and adjust the angle of the guide plate according to the results collected by the first sensor.

[0014] According to an embodiment of the present disclosure, a second sensor for collecting the temperature and / or velocity of the airflow, a third sensor for collecting the coolant temperature of the heat exchange component, and a fourth sensor for collecting the power generation parameters of the turbine component are also provided in the energy recovery mechanism; the controller is also configured to control and adjust the operating parameters of the heat exchange component and / or the operating parameters of the turbine component according to the results collected by the second sensor, the third sensor and the fourth sensor.

[0015] According to the energy recovery system provided by the present disclosure, a flow guide mechanism is provided on the exhaust side of the electronic device, the airflow is introduced from the electronic device to the energy recovery mechanism, a heat exchange component and a turbine component are provided in the energy recovery mechanism, the heat exchange pipe of the heat exchange component is used to exchange heat with the airflow, and the airflow flowing out of the heat exchange component is used to drive the turbine component to generate electricity, thereby realizing the dual recovery and utilization of heat energy and kinetic energy, and improving the efficient recovery and utilization of the heat dissipation energy of the electronic device. In addition, the flow guide mechanism and the energy recovery mechanism are detachably installed on the exhaust side of the electronic device, and there is no need to modify the existing equipment, and they can be quickly installed and replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above contents and other purposes, features and advantages of the present disclosure will become more apparent through the following description of the embodiments of the present disclosure with reference to the accompanying drawings, in which:

[0017] Figure 1 A schematic diagram schematically shows the overall structure of an energy recovery system according to an embodiment of the present disclosure;

[0018] Figure 2 A front view of a flow guiding mechanism according to an embodiment of the present disclosure is schematically shown;

[0019] Figure 3 A schematic diagram of the assembly of a guide plate according to an embodiment of the present disclosure is schematically shown;

[0020] Figure 4 A schematic diagram schematically shows the overall structure of an energy recovery device according to an embodiment of the present disclosure;

[0021] Figure 5 The schematic diagram shows an architecture diagram of a controller according to an embodiment of the present disclosure.

[0022] In the figure:

[0023] 1. Electronic equipment;

[0024] 11. Server unit;

[0025] 2. Diversion mechanism;

[0026] 21. Second shell;

[0027] 22. Guide plate;

[0028] 23. Motor;

[0029] 24. Coupling;

[0030] 25. Bearing seat;

[0031] 26. Connecting shaft;

[0032] 3. Energy recovery mechanism;

[0033] 31. Flow guide components;

[0034] 311, first flow guide;

[0035] 312, second flow guide;

[0036] 32. Heat exchange components;

[0037] 33. Turbine assembly;

[0038] 331, turbine;

[0039] 332. deflector;

[0040] 333, rectifier assembly;

[0041] 334. Generator set;

[0042] 34. Water inlet header;

[0043] 35. Water outlet header;

[0044] 36. Air inlet;

[0045] 37. Air outlet;

[0046] 38. The first shell. DETAILED DESCRIPTION

[0047] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present disclosure. In the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present disclosure. However, it is apparent that one or more embodiments may also be implemented without these specific details. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present disclosure.

[0048] The terms used herein are only for describing specific embodiments and are not intended to limit the present disclosure. The terms "comprise", "include", etc. used herein indicate the existence of features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0049] All terms (including technical and scientific terms) used herein have the meanings commonly understood by those skilled in the art unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0050] When using expressions such as "at least one of A, B, and C, etc.", they should generally be interpreted according to the meaning of the expression commonly understood by those skilled in the art (for example, "a system having at least one of A, B, and C" should include but is not limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.).

[0051] In relevant embodiments, the recovery of heat dissipation energy in the server may generally include hot channel closure technology, heat pipe heat exchange technology, and waste heat power generation technology. The hot channel closure technology collects hot air and introduces it into the air conditioning return air system by physically isolating the hot channel of the server cabinet. Although this method can improve the cooling efficiency of the air conditioning system, it does not achieve effective recovery of heat energy. The heat pipe heat exchange technology uses heat pipes to transfer the heat dissipated by the server to a specific heat exchange system for heating domestic water or heating. Although this method achieves the recovery of heat energy, it requires the addition of heat pipe devices on the server, which requires a large amount of modification work and there is a risk of heat pipe failure. The waste heat power generation technology converts the heat energy generated by the server heat dissipation into electrical energy through a temperature difference power generation device. However, due to the low conversion efficiency of temperature difference power generation (usually less than 5%) and the high cost of the device, the actual application effect is limited. In addition, the utilization of energy by these technologies mainly focuses on heat energy recovery, ignoring the potential for the utilization of airflow kinetic energy.

[0052] Based on this, the present disclosure provides an energy recovery system to solve at least one of the above problems.

[0053] Figure 1 A schematic diagram schematically shows the overall structure of an energy recovery system according to an embodiment of the present disclosure.

[0054] According to the energy recovery system provided by the present disclosure, it can be used to recover energy from the airflow exhausted by the electronic device 1. As shown in 1, the energy recovery system includes a guide mechanism 2 and an energy recovery mechanism 3. The guide mechanism 2 is detachably arranged on the exhaust side of the electronic device 1, and the guide mechanism 2 is formed with a guide cavity to guide the airflow exhausted by the electronic device 1. The energy recovery mechanism 3 is connected to the guide mechanism 2. The energy recovery mechanism 3 includes a first shell 38, a heat exchange component 32 and a turbine component. The first shell 38 defines an accommodating cavity. The heat exchange component 32 is arranged in the accommodating cavity, and the heat exchange component 32 includes a plurality of heat exchange tubes, and the plurality of heat exchange tubes are suitable for heat exchange of the airflow flowing through the surface of the heat exchange tube. The turbine component 33 is arranged downstream of the heat exchange component 32 along the flow direction of the airflow, and the turbine component 33 includes a turbine 331 and a generator set 334 connected to the turbine 331. The turbine 331 is driven by the airflow flowing out of the heat exchange component 32 to rotate so that the generator set 334 generates electricity. d

[0055] In some embodiments, Figure 1 As shown, the electronic device 1 can be a server cluster in a data center or a server room. The server cluster includes a server cabinet and a plurality of server units 11. The plurality of server units 11 are respectively arranged on the cabinet frames of each layer of the server cabinet. The heat generated when the server is working can be discharged from the exhaust side of the server through the built-in exhaust fan, and the guide mechanism 2 can be detachably installed on the exhaust side of the server cabinet. For example, the exhaust port of the server is located at the rear end of the cabinet, and the guide component can be detachably installed at the rear end of the server cabinet.

[0056] In some embodiments, the guide assembly can be detachably mounted on the server cabinet using an inlet flange, and the inlet flange matches the size of the server cabinet. During installation, a rubber sealing strip can be used to seal to ensure the sealing of the flange connection. The present disclosure is not limited thereto, and the guide assembly can also be detachably mounted on the server cabinet using threaded connection and clamp connection.

[0057] In some embodiments, Figure 1 As shown, the energy recovery mechanism 3 is integrated in the first housing 38, and an air inlet 36 is provided on one side of the first housing 38. The air inlet 36 of the first housing 38 is detachably connected to the outlet of the guide mechanism 2, and an air outlet 37 is provided on the other side of the first housing 38 to discharge the processed airflow. A heat exchange component 32 and a turbine component 33 are sequentially arranged between the air inlet 36 and the air outlet 37 to recover the heat energy and kinetic energy in the airflow, respectively.

[0058] Specifically, the heat exchange assembly 32 is disposed downstream of the air inlet 36. The heat exchange assembly 32 includes a plurality of heat exchange tubes, which may be made of copper tubes, aluminum tubes or other materials with good thermal conductivity. The heat exchange tubes are filled with circulating coolant for exchanging heat with the airflow flowing through the surface of the heat exchange tubes, thereby reducing the temperature of the airflow and recovering the heat energy in the airflow.

[0059] The turbine assembly 33 is disposed downstream of the heat exchange assembly 32. The turbine assembly 33 may be a small wind turbine or similar device, and the blades of the turbine can efficiently capture and utilize the kinetic energy in the airflow. The generator set 334 may be a permanent magnet generator, an induction generator, or other types of generators, for converting the mechanical energy of the turbine 331 into electrical energy.

[0060] In such an embodiment, by setting a flow guide mechanism 2 on the exhaust side of the electronic device 1, the airflow is introduced from the electronic device 1 to the energy recovery mechanism 3, and a heat exchange component 32 and a turbine component 33 are set in the energy recovery mechanism 3, and the heat exchange pipe of the heat exchange component 32 is used to exchange heat with the airflow, and then the airflow flowing out of the heat exchange component 32 is used to drive the turbine component 33 to generate electricity, thereby realizing the dual recovery and utilization of thermal energy and kinetic energy, and improving the efficient recovery and utilization of the heat dissipation energy of the electronic device 1. In addition, the flow guide mechanism 2 and the energy recovery mechanism 3 are detachably installed on the exhaust side of the electronic device 1, and there is no need to modify the existing equipment, and they can be quickly installed and replaced.

[0061] Figure 2 A front view of a flow guiding mechanism 2 according to an embodiment of the present disclosure is schematically shown.

[0062] According to the embodiments of the present disclosure, Figure 2 As shown, the air guiding mechanism 2 comprises a second shell 21, and the cross section of the second shell 21 gradually decreases along the flow direction of the airflow.

[0063] Specifically, the second shell 21 can adopt a conical design, with an inlet set at one end of the second shell 21 (the end close to the electronic device 1), and an outlet set at the other end of the second shell 21 (the end close to the energy recovery mechanism 3), the cross-section at the inlet is larger, and the cross-section at the outlet gradually decreases.

[0064] In such an embodiment, the inlet cross-section of the second shell 21 can be designed to be larger to accommodate all the airflow exhausted by the electronic device 1; while the outlet cross-section gradually decreases to accelerate the flow of the airflow and guide it into the energy recovery mechanism 3.

[0065] According to the embodiments of the present disclosure, Figure 2 As shown, a plurality of rotatable guide plates 22 are arranged at intervals in the second shell 21 to form a plurality of guide cavities in the guide mechanism 2 , and each guide cavity corresponds to one or more servers of the electronic device 1 .

[0066] In an embodiment of the present disclosure, an independent guide cavity can be formed between two adjacent guide plates 22, and the correspondence between the guide cavity and the server can be determined according to the spatial dimensions of the server cabinet or the density of the server. For example, for a 1U (rack unit) cabinet, one guide cavity can correspond to one server, and for a 2U cabinet, one guide cavity can correspond to multiple servers.

[0067] The guide plate 22 can rotate around a rotation axis to adjust the position and angle of the guide plate 22. Specifically, when the server load changes or the airflow direction changes, the airflow path can be optimized by adjusting the angle of the guide plate 22. This ensures that the airflow can flow directly from the exhaust side of the server to the energy recovery mechanism 3 with less energy loss.

[0068] In such an embodiment, a plurality of rotatable guide plates 22 are provided to divide the shell into a plurality of independent guide chambers, so that each guide chamber can be adjusted according to the actual load condition of each server, thereby realizing precise control of the airflow.

[0069] Figure 3 The schematic diagram shows the principle diagram of the guide plate assembly according to the embodiment of the present disclosure.

[0070] In some embodiments, Figure 3 As shown, each guide plate 22 may be individually configured with a motor, and the motor 23 may be a stepping motor, and the guide plate 22 is driven to rotate by the motor 23 .

[0071] Specifically, the output shaft of the motor 23 is connected to the rotating shaft of the guide plate 22 through the coupling 24, and the rotating shaft is supported on the bearing seat 25 through the connecting shaft 26. The bearing seat 25 is fixed on the second shell 21. When the motor 23 receives a driving signal, it can rotate a predetermined angle and transmit it to the rotating shaft of the guide plate 22 through the coupling 24, thereby driving the guide plate 22 to rotate a predetermined angle.

[0072] In some embodiments, the motor 23 may be a two-phase hybrid motor with a torque output of 1.2 N·m or more to ensure the accuracy and reliability of the wind deflector adjustment. The coupling 24 may be an elastic coupling that can compensate for axial deviation of not less than 0.5 mm to reduce vibration and ensure smooth transmission. The connecting shaft 26 may be made of a metal material with good corrosion resistance and a surface hardness of not less than HRC30, with a diameter of 8 mm, to ensure long-term reliable operation. The bearing seat 25 may be a double-row angular contact ball bearing with good radial and axial load-bearing capacity to provide stable support and rotation accuracy.

[0073] According to an embodiment of the present disclosure, the guide cavity is provided with a first sensor for collecting the temperature and / or velocity of the airflow. The energy recovery system further comprises a controller configured to control and adjust the angle of the guide plate 22 according to the result collected by the first sensor.

[0074] In some embodiments, the first sensor can be disposed on the guide plate 22 to sense and collect the temperature and speed of the airflow in real time, and transmit the collected results to the controller. The controller can determine the optimal angle of the guide plate 22 according to the current airflow conditions, and then send a control signal to the motor 23, and the motor 23 drives the guide plate 22 to adjust the angle, so that the guide plate 22 can automatically optimize the flow direction and speed of the airflow according to the current airflow conditions.

[0075] Figure 4 A schematic diagram schematically shows the overall structure of an energy recovery device according to an embodiment of the present disclosure.

[0076] According to the embodiments of the present disclosure, Figure 4 As shown, the energy recovery mechanism 3 further includes a flow guide component 31 . The flow guide component 31 is disposed between the air inlet 36 of the first housing 38 and the heat exchange assembly 32 . The flow guide component 31 forms a flow guide channel to guide the airflow to the heat exchange assembly 32 .

[0077] In some embodiments, the guide component 31 can be composed of a flat plate or a curved plate with a specific tilt angle. The guide component 31 has a guide channel that runs through the front and back, and the guide channel has a certain length and width. The cross-sectional shape of the guide channel can be circular or elliptical, etc. One end of the guide component 31 is directly connected to the air inlet 36 of the first shell 38, and is installed between the air inlet 36 of the first shell 38 and the heat exchange component 32 to ensure that the airflow can smoothly enter the guide channel and be guided to the heat exchange component 32. The edge of the guide plate can also be sealed to ensure that the airflow does not leak out from the gap between the guide plate and the shell.

[0078] In some embodiments, the air guide component 31 may also be an air guide cover, and an air guide channel is formed inside the air guide cover. The air guide cover may adopt a curved surface structure to ensure that the airflow can be evenly distributed to various parts of the heat exchange component 32. The edge of the air guide cover may be tightly matched with the air inlet 36 of the first shell 38 and sealed.

[0079] According to the embodiments of the present disclosure, Figure 4 As shown, the air guide component 31 includes a first air guide 311 and a second air guide 312. The first air guide 311 is connected to the air inlet 36 of the first shell 38, and the first air guide 311 forms a first air guide channel, and the inner wall of the first air guide channel is configured to be arc-shaped along the flow direction of the airflow.

[0080] Specifically, the first guide member 311 may be a primary guide plate, which is disposed at the air inlet 36. The primary guide plate is designed in an arc shape to guide the airflow to smoothly enter the guide channel, reduce friction and collision between the airflow and the wall of the guide channel, and thus reduce flow resistance and energy loss.

[0081] In some embodiments, the curvature radius of the primary guide plate is set to R=150 mm, which can control the inlet loss coefficient to about 0.15, effectively reducing the energy loss when the airflow enters. The present disclosure is not limited thereto, and the curvature radius can also be appropriately adjusted according to the airflow volume.

[0082] According to the embodiments of the present disclosure, Figure 4 As shown, the guide component 31 further includes a second guide member 312 disposed downstream of the first guide member 311 , the second guide member 312 forms a second guide channel, and the inner wall of the second guide channel is formed into an arc with variable curvature along the flow direction of the airflow.

[0083] The second guide member 312 may be a secondary guide plate, which is disposed behind the primary guide plate and is used to further adjust and optimize the direction and distribution of the airflow, so that the airflow distribution is more uniform and local eddies and turbulence are reduced.

[0084] In some embodiments, the guide channel formed by the secondary guide plate can be divided into an inlet section, a middle section and an outlet section. The curvature radius of the inlet section can be appropriately larger to slow down the impact speed of the airflow, and the curvature radius of the middle section can be designed to gradually decrease, but the change is as smooth as possible to make the airflow evenly distributed. The curvature radius of the outlet section should be appropriately smaller to accelerate the flow of the airflow so that the airflow can smoothly enter the heat exchange component 32.

[0085] In some embodiments, based on the analysis of airflow characteristics, the curve parameters of the secondary guide plate can be determined through computational fluid dynamics optimization to achieve an airflow distribution uniformity of more than 90%.

[0086] According to an embodiment of the present disclosure, the plurality of heat exchange tubes are configured into a first heat exchange tube group arranged along a first direction and a second heat exchange tube group arranged along a second direction, and an acute angle is formed between the first direction and the second direction.

[0087] Specifically, the first heat exchange tube group may be a plurality of heat exchange tubes arranged in parallel in a first direction, and the first direction may be a direction at a first angle to the flow direction of the airflow. The second heat exchange tube group may be a plurality of heat exchange tubes arranged in parallel in a second direction, and the second direction may be a direction at a second angle to the flow direction of the airflow, and the angle between the first direction and the second direction is an acute angle, for example, the angle may range from 30° to 70°.

[0088] In such an embodiment, the plurality of heat exchange tubes may be arranged in a V-shape so that the airflow can more fully contact the surface of the heat exchange tubes when passing through, thereby increasing the heat exchange area in a limited space.

[0089] In some embodiments, the heat exchange assembly 32 further includes a support structure, which includes a tube sheet and a bracket. The tube sheet is used to fix the two ends of the heat exchange tube so that the multiple heat exchange tubes form a stable heat exchange tube group; the bracket is used to support the heat exchange tube group to prevent it from being deformed due to gravity or airflow impact.

[0090] A water inlet is provided at one end of the heat exchange component 32, and a water outlet is provided at the other end of the heat exchange component 32. A cooling system is also provided in the energy recovery mechanism 3, and the cooling system includes a water inlet header 34 and a water outlet header 35. The water inlet header 34 is connected to the water inlet of the heat exchange component 32, and the water outlet header 35 is connected to the water outlet of the heat exchange component 32, and is used to transport coolant to the heat exchange component 32 to perform heat exchange when the airflow flows through the heat exchange tube.

[0091] According to an embodiment of the present disclosure, the turbine assembly 33 further includes a guide cover 332 and a fairing assembly 333. The guide cover 332 is arranged on the turbine 331, and the guide cover 332 has a first opening and a second opening, and a diversion channel is formed between the first opening and the second opening, the first opening faces the heat exchange assembly 32, and the second opening is connected to the turbine 331; the area of ​​the first opening of the guide cover is larger than the area of ​​the second opening, and the outer wall of the guide cover is configured in a hyperbolic shape along the first opening to the second opening. The fairing assembly 333 includes a plurality of fairing blades, and the plurality of fairing blades are arranged in an annular shape at one end of the guide cover 332 close to the turbine 331 to fair the airflow entering the turbine 331.

[0092] In some embodiments, the air deflector 332 may be an integrally formed component or may be formed by splicing a plurality of parts. A first end of the air deflector 332 is fixedly connected to the outer surface of the turbine 331, for example, by bolts, welding or other fasteners to fix the turbine 331, and ensures the airflow sealing.

[0093] In some embodiments, the cross-section of the air guide cover 332 can be designed to be conical or cone-like so that the circumference of the air guide cover gradually expands from the first end to the second end. The gradually expanding circumference helps to reduce the resistance of the airflow in the air guide cover 332, allowing the airflow to flow more smoothly.

[0094] In some embodiments, the air guide cover 332 may be designed with a hyperbolic surface, which can better match the diffusion characteristics of the airflow, so that the airflow maintains a low resistance and a high speed when flowing through the air guide cover 332. Numerical simulation technologies such as computational fluid dynamics (CFD) can be used to simulate and optimize the airflow of the hyperbolic air guide cover 332, and the parameters of the hyperbola (such as asymptote angle, curvature, etc.) can be adjusted based on the simulation results to achieve the best airflow guiding effect.

[0095] In some embodiments, the straightening blades can be fixed to the guide cover 332 by a bracket or a clamping device. The straightening blades are designed to be arranged in an annular shape and fit closely to one end of the guide cover 332 close to the turbine 331. The shape and angle of the blades can be adjusted to ensure that the airflow is uniformly accelerated and guided before entering the turbine 331, thereby reducing turbulence and vortex.

[0096] In such an embodiment, through the cooperation of the guide cover 332 and the straightening blades, the airflow can enter the turbine 331 at an optimal angle, thereby improving the energy conversion efficiency.

[0097] According to an embodiment of the present disclosure, a second sensor for collecting the temperature and / or speed of the airflow, a third sensor for collecting the coolant temperature of the heat exchange component 32, and a fourth sensor for collecting power generation parameters such as output power and output voltage of the turbine component 33 are also provided in the energy recovery mechanism 3. The controller is also configured to control and adjust the operating parameters such as the heat exchange amount and temperature change amplitude of the heat exchange component 32 and / or the operating parameters such as the rotation speed of the turbine component 33 according to the results collected by the second sensor, the third sensor and the fourth sensor.

[0098] Specifically, the second sensor can be arranged in the flow guide channel to detect the temperature and flow rate of the airflow entering the energy recovery mechanism 3, the third sensor can be arranged at the water outlet of the heat exchange component 32 to detect the coolant temperature, and the fourth sensor can be arranged in the generator to detect the output current and voltage. In some embodiments, a fifth sensor can also be arranged in the energy conversion mechanism to detect the pressure distribution of the energy recovery mechanism 3.

[0099] The controller can receive the collected results transmitted by multiple sensors and control the heat exchange component 32 and the turbine component 33. For example, the flow rate of the coolant in the heat exchange component 32 is adjusted according to the coolant temperature. According to the output current and voltage, the blades of the turbine are adjusted or the operating parameters of the generator are optimized to maximize energy recovery.

[0100] Figure 5 The schematic diagram shows an architecture diagram of a controller according to an embodiment of the present disclosure.

[0101] like Figure 5 As shown, the controller adopts a hierarchical control architecture. The controller includes five functional modules, namely, a main controller module 410, a sensor interface module 420, an execution control module 430, a communication management module 440 and a human-computer interaction module 450. The five functional modules are interconnected through a data bus and control signals to jointly realize intelligent control of the energy recovery system.

[0102] The main controller module 410 is the core of the entire controller, responsible for receiving and processing all sensor data, executing control algorithms, and sending control instructions to each actuator. The main functions of the main controller module 410 include: receiving various types of data from the sensor interface module 420; executing corresponding control algorithms according to the state of the energy recovery system; coordinating and managing the coordination between various functional modules; processing data interaction with the host computer and external devices; real-time monitoring of the energy recovery system operation status, timely detection and processing of abnormalities, etc.

[0103] The sensor interface module 420 is responsible for the collection and preprocessing of all sensor signals of the system, including: collecting temperature data of the guide mechanism 2 and the energy recovery mechanism 3, such as inlet and outlet air temperature, coolant temperature, etc., through the first sensor, the second sensor and the third sensor; monitoring the air flow velocity through the first sensor to provide a basis for the control of the air guide plate; monitoring the air pressure distribution in the energy recovery mechanism 3 through the fifth sensor to ensure the safe operation of the system; collecting and monitoring current and voltage through the fourth sensor to monitor the output parameters of the generator in real time and evaluate the energy recovery effect.

[0104] The execution control module 430 is responsible for driving various actuators to implement specific control actions of the system, including: precise adjustment of the angle of the air guide plate; adjustment of the coolant flow rate according to the heat load; optimization of the generator working state to maximize energy recovery; and issuance of warning signals when the system is abnormal.

[0105] The communication management module 440 realizes the external communication function of the energy recovery system through the bus, including: communicating with the host computer, uploading operation data, and receiving control instructions; when multiple devices are deployed, realizing data exchange between devices; supporting remote operation and monitoring functions; and realizing remote setting of system parameters.

[0106] The human-computer interaction module 450 realizes on-site operation and monitoring through LCD display and key input, including: real-time display of system operation status; display of fault codes and processing suggestions; support for on-site modification of control parameters; human-computer interaction when performing important operations, etc.

[0107] The main controller module 410 is connected to other modules through the data bus, receives data from the sensor interface module 420, and sends control instructions to the execution control module 430 after processing. At the same time, the main controller interacts with the external system through the communication management module 440, and exchanges information with the operator through the human-computer interaction module 450. This hierarchical design not only ensures the real-time and reliability of system control, but also provides good scalability and maintainability.

[0108] By using a multi-module collaborative control strategy and intelligent control based on real-time monitoring of multi-point temperature and wind speed, dynamic adjustment of the air guide plate angle and water pump speed can be achieved, so that the energy recovery system always operates under optimal conditions.

[0109] It will be appreciated by those skilled in the art that the features described in the various embodiments of the present disclosure may be combined and / or combined in a variety of ways, even if such combinations or combinations are not explicitly described in the present disclosure. In particular, without departing from the spirit and teachings of the present disclosure, the features described in the various embodiments of the present disclosure may be combined and / or combined in a variety of ways. All of these combinations and / or combinations fall within the scope of the present disclosure.

[0110] The embodiments of the present disclosure are described above. However, these embodiments are only for illustrative purposes and are not intended to limit the scope of the present disclosure. Although the embodiments are described above, this does not mean that the measures in the various embodiments cannot be used in combination to advantage. Without departing from the scope of the present disclosure, those skilled in the art may make a variety of substitutions and modifications, which should all fall within the scope of the present disclosure.

Claims

1. An energy recovery system for recovering energy from airflow exhausted by electronic equipment, characterized in that: The energy recovery system comprises: A flow guiding mechanism (2) is detachably arranged on the exhaust side of the electronic device, the flow guiding mechanism (2) is formed with a flow guiding cavity, and the flow guiding cavity is used to guide the airflow exhausted by the electronic device; An energy recovery mechanism (3) is connected to the flow guiding mechanism (2), and the energy recovery mechanism (3) comprises: A first housing (38) defines a receiving cavity; A heat exchange component (32) is disposed in the accommodating cavity, the heat exchange component (32) comprising a plurality of heat exchange tubes, the plurality of heat exchange tubes being suitable for performing heat exchange on an airflow flowing through a surface of the heat exchange tube; A turbine assembly (33) is arranged downstream of the heat exchange assembly (32) along the flow direction of the airflow, the turbine assembly (33) comprising a turbine (331) and a generator set (334) connected to the turbine (331), the turbine (331) rotating under the drive of the airflow flowing out of the heat exchange assembly (32), so that the generator set (334) generates electricity.

2. The system according to claim 1, characterized in that The plurality of heat exchange tubes include a first heat exchange tube group arranged along a first direction and a second heat exchange tube group arranged along a second direction, and an acute angle is formed between the first direction and the second direction.

3. The system according to claim 1, characterized in that The turbine assembly (33) further comprises: a flow guide cover (332) disposed on the turbine (331), the flow guide cover (332) having a first opening and a second opening, a flow guide channel being formed between the first opening and the second opening, the first opening facing the heat exchange component (32), and the second opening being in communication with the turbine (331); The area of ​​the first opening of the air guide cover (332) is larger than the area of ​​the second opening, and the outer wall of the air guide cover (332) is configured in a hyperbolic shape along the direction from the first opening to the second opening; A straightening assembly (333), the straightening assembly (333) comprising a plurality of straightening blades, the plurality of straightening blades being arranged in an annular shape on a side of the guide cover (332) close to the turbine (331) to straighten the airflow entering the turbine (331).

4. The system according to claim 1, characterized in that The energy recovery mechanism (3) further comprises: A flow guide component (31) is arranged between the air inlet (36) of the first shell (38) and the heat exchange component (32), and the flow guide component (31) is formed with a flow guide channel to guide the airflow to the heat exchange component (32).

5. The system according to claim 4, characterized in that The flow guide component (31) comprises: The first air guide member (311) is connected to the air inlet (36) of the first shell (38), and the first air guide member (311) forms a first air guide channel, wherein the inner wall of the first air guide channel is configured to be arc-shaped along the flow direction of the airflow.

6. The system according to claim 5, characterized in that The flow guide component (31) further comprises a second flow guide member (312) arranged downstream of the first flow guide member (311), the second flow guide member (312) forming a second flow guide channel, the inner wall of the second flow guide channel being formed into an arc shape with a variable curvature along the flow direction of the airflow.

7. The system according to claim 1, characterized in that The flow guiding mechanism (2) comprises a second shell (21), and the cross-sectional area of ​​the second shell (21) gradually decreases along the flow direction of the airflow.

8. The system according to claim 7, characterized in that A plurality of rotatable guide plates (22) are arranged at intervals in the second shell (21) to form a plurality of guide cavities in the guide mechanism (2), each of the guide cavities corresponding to one or more servers of the electronic device.

9. The system according to claim 8, characterized in that A first sensor for collecting the temperature and / or velocity of the airflow is arranged in the flow guiding cavity; The energy recovery system also includes a controller, which is configured to control and adjust the angle of the guide plate (22) according to the result collected by the first sensor.

10. The system according to claim 9, characterized in that The energy recovery mechanism (3) is also provided with a second sensor for collecting the temperature and / or speed of the airflow, a third sensor for collecting the coolant temperature of the heat exchange component (32), and a fourth sensor for collecting the power generation parameters of the turbine component (33); The controller is also configured to control and adjust the operating parameters of the heat exchange component (32) and / or the operating parameters of the turbine component (33) according to the results collected by the second sensor, the third sensor and the fourth sensor.

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