Detection circuit of hydraulic pipeline, liquid cooling system and server system

Abstract

The invention discloses a detection circuit of a hydraulic pipeline, a liquid cooling system and a server system, and relates to the field of fluid detection, a sound detection module is arranged near a valve core of a hydraulic valve, when the flow or pressure flowing through the hydraulic valve exceeds a safety threshold value, the valve core of the hydraulic valve vibrates at high frequency, so that a sound signal caused by high-frequency vibration is generated, and the sound signal is transmitted to the liquid cooling system; and a sound detection module is arranged in the detection circuit to capture the sound signal, so that the pressure and the flow of the fluid flowing through the hydraulic valve can be monitored in real time. And meanwhile, the data processing module can convert the sound signal into a digital signal in time and transmit the digital signal to the processor, so that the processor can control the hydraulic pipeline to stop working in time, the damage to the whole hydraulic system caused by liquid leakage when the pressure or the flow exceeds the limit can be effectively avoided, and the safety and the reliability of the whole hydraulic system are improved.

Description

Technical Field

[0001] The present invention relates to the field of fluid detection, and in particular to a detection circuit for a hydraulic pipeline, a liquid cooling system and a server system. Background Art

[0002] In industrial practice, hydraulic pipelines and the hydraulic valves in them play a vital role in aerospace, electronic information technology, transportation equipment manufacturing, new energy applications, rail transit air conditioning systems, central temperature control facilities, energy storage temperature control solutions, fluid cooling and electronic heat dissipation, cabinet air conditioning devices, data center integration services, cold chain temperature control technology, and indoor air quality control. As a key component in the hydraulic system, the hydraulic valve can meet the specific needs of different industries by controlling the flow and pressure of the fluid.

[0003] In the process of implementing the present invention, the inventors found that there are at least the following problems in the prior art:

[0004] During operation, hydraulic valves may leak due to excessive flow or pressure, which may harm the hydraulic pipeline and the entire hydraulic system. In severe cases, it may even cause control failure of the hydraulic system. Therefore, how to detect the leakage of hydraulic valves has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] The purpose of the present invention is to provide a detection circuit, a liquid cooling system and a server system for a hydraulic pipeline, which can realize real-time monitoring of the pressure and flow of the fluid flowing through the hydraulic valve, so as to effectively avoid the damage to the entire hydraulic system caused by leakage when the pressure or flow exceeds the limit, thereby improving the safety and reliability of the entire hydraulic system.

[0006] In order to effectively solve the above technical problems, the present invention provides a detection circuit for a hydraulic pipeline, wherein the hydraulic pipeline includes a hydraulic valve, and the detection circuit for the hydraulic pipeline includes:

[0007] A sound detection module, used to detect a sound signal generated by the vibration of a valve core in the hydraulic valve;

[0008] A data processing module, whose input end is connected to the output end of the sound detection module, is used to receive the sound signal output by the sound detection module and convert the sound signal into a digital signal;

[0009] The processor has an input end connected to the output end of the data processing module and an output end connected to the hydraulic pipeline, and is used to control the hydraulic pipeline to stop conveying fluid when a digital signal corresponding to the sound signal is received.

[0010] Optionally, the hydraulic pipeline further includes a water pump, and the water pump is used to transport the fluid in the hydraulic pipeline;

[0011] The output end of the processor is connected to the control end of the water pump, and is specifically used to control the water pump to stop running when a digital signal corresponding to the sound signal is received, so as to control the hydraulic pipeline to stop conveying fluid.

[0012] Optionally, the detection circuit of the hydraulic pipeline further includes:

[0013] a pressure gauge and / or a flow meter disposed at the outlet of the water pump, wherein the output end of the pressure gauge and / or the flow meter is connected to the input end of the processor, and is used to detect the fluid pressure and / or the fluid flow at the outlet of the water pump, and output the fluid pressure and / or the fluid flow to the processor;

[0014] The output end of the processor is also connected to the control end of the hydraulic valve, and is also used to determine whether the fluid pressure and / or the fluid flow exceeds the target value. If so, the opening of the hydraulic valve is controlled to decrease by a first preset value.

[0015] Optionally, the detection circuit of the hydraulic pipeline further includes:

[0016] A temperature detection module, the output end of which is connected to the input end of the processor, for detecting the operating temperature of the cooling target and outputting the operating temperature to the processor;

[0017] The output end of the processor is also connected to the control end of the hydraulic valve, and is also used to control the opening of the hydraulic valve to increase by a second preset value when the working temperature is greater than the normal temperature of the cooling target, and to control the opening of the hydraulic valve to decrease by a third preset value when the working temperature is lower than the normal temperature of the cooling target.

[0018] Optionally, the detection circuit of the hydraulic pipeline further includes:

[0019] An opening detection module connected to the hydraulic valve has an output end connected to the input end of the processor, and is used to detect the opening of the hydraulic valve and output the opening to the processor so that the processor can determine whether there is an abnormality in the opening of the hydraulic valve.

[0020] Optionally, the data processing module includes:

[0021] An amplifier, whose input end is connected to the output end of the sound detection module and is used to amplify the sound signal output by the sound detection module;

[0022] The analog-to-digital conversion circuit has an input end connected to the output end of the amplifier and an output end connected to the input end of the processor, and is used to convert the sound signal into a digital signal.

[0023] Optionally, the data processing module further includes:

[0024] A filter, whose input end is connected to the output end of the analog-to-digital conversion circuit and whose output end is connected to the input end of the processor, is used to filter the digital signal.

[0025] Optionally, the data processing module further includes:

[0026] The memory has an input end connected to the output end of the sound detection module and is used to store the received sound signal output by the sound detection module.

[0027] In order to effectively solve the above technical problems, the present invention also provides a liquid cooling system, including a hydraulic pipeline and a detection circuit for the hydraulic pipeline as described above, wherein the sound detection module in the detection circuit of the hydraulic pipeline is arranged adjacent to the valve core of the hydraulic valve in the hydraulic pipeline.

[0028] In order to effectively solve the above technical problems, the present invention further provides a server system, comprising a server and the liquid cooling system as described above, wherein the liquid cooling system is arranged adjacent to a mainboard of the server.

[0029] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects:

[0030] The present invention provides a detection circuit for a hydraulic pipeline, comprising a sound detection module, a data processing module and a processor. The sound detection module is arranged near a valve core of a hydraulic valve. When the flow or pressure flowing through the hydraulic valve exceeds a safety threshold, the valve core of the hydraulic valve will vibrate at a high frequency, thereby generating a sound signal caused by the high-frequency vibration. The detection circuit is provided with a sound detection module to capture the sound signal, thereby enabling real-time monitoring of the pressure and flow of the fluid flowing through the hydraulic valve. At the same time, the data processing module can timely convert the sound signal into a digital signal and transmit it to the processor, so that the processor can timely control the hydraulic pipeline to stop working, which can effectively avoid the damage to the entire hydraulic system caused by leakage when the pressure or flow exceeds the limit, thereby improving the safety and reliability of the entire hydraulic system.

[0031] The present invention also provides a liquid cooling system and a server system, which have the same beneficial effects as the above-mentioned detection circuit of the hydraulic pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the prior art and the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 A structural schematic diagram of a detection circuit for a hydraulic pipeline provided by the present invention;

[0034] Figure 2 is a schematic diagram of the cross-sectional structure of the hydraulic valve when the valve core is located at the first position;

[0035] Figure 3 is a schematic diagram of the cross-sectional structure of the hydraulic valve when the valve core is located at the second position;

[0036] Figure 4 A schematic structural diagram of another detection circuit for a hydraulic pipeline provided by the present invention. DETAILED DESCRIPTION

[0037] The core of the present invention is to provide a detection circuit, a liquid cooling system and a server system for a hydraulic pipeline. A sound detection module is set in the detection circuit to capture the sound signal generated when the hydraulic valve vibrates, so as to realize real-time monitoring of the pressure and flow of the fluid flowing through the hydraulic valve. At the same time, the processor can control the hydraulic pipeline to stop working in time according to the detection results, so as to effectively avoid the damage to the entire hydraulic system caused by leakage when the pressure or flow exceeds the limit, thereby improving the safety and reliability of the entire hydraulic system.

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Please refer to Figure 1 , Figure 1 The present invention provides a structural schematic diagram of a detection circuit of a hydraulic pipeline; in order to effectively solve the above technical problems, the present invention provides a detection circuit of a hydraulic pipeline, the hydraulic pipeline includes a hydraulic valve, and the detection circuit of the hydraulic pipeline includes:

[0040] The sound detection module 1 is used to detect the sound signal generated by the vibration of the valve core in the hydraulic valve;

[0041] The data processing module 2 has an input end connected to the output end of the sound detection module 1, and is used to receive the sound signal output by the sound detection module 1 and convert the sound signal into a digital signal;

[0042] The processor 3 has an input end connected to the output end of the data processing module 2 and an output end connected to the hydraulic pipeline, and is used to control the hydraulic pipeline to stop conveying fluid when a digital signal corresponding to the sound signal is received.

[0043] It is not difficult to understand that hydraulic pipelines and the hydraulic systems and liquid transmission systems in which they are located are strictly tested for air tightness during the production process. However, due to the accumulation of errors in the materials, manufacturing, assembly of various components in the system, as well as system assembly, process, quality control, etc., when the internal pressure of the hydraulic pipeline exceeds the working pressure limit, leakage may still occur in some parts. Therefore, it is necessary to design a leakage detection function for the hydraulic pipeline, based on a carefully designed detection range, to ensure that the hydraulic pipeline and the entire hydraulic system can work under safe operating parameters.

[0044] It is understandable that in response to the demand for leakage detection in hydraulic pipelines, this application provides a new technical path to realize leakage detection in hydraulic pipelines based on the structure of the hydraulic valve itself. The hydraulic valve itself includes a valve body, a valve core, a spring and a limiter. The valve body constitutes the main channel for fluid flow, including an inlet and an outlet; the valve core is a core regulating component, and the flow rate can be adjusted by moving the valve core; the spring can provide elastic deformation force, balance the position of the valve core, and cooperate with the valve core to realize the movement process of the valve core, thereby realizing the flow regulation process; the limiter can ensure the stability of the valve core in the extreme position. When there is liquid input into the hydraulic pipeline, the liquid power will cause the vibration of the valve core, especially when the pressure or flow of the liquid exceeds the set safe working pressure or the maximum value of the flow, the valve core will be stimulated by the fluid to produce high-frequency vibration, and this high-frequency vibration is accompanied by the generation of sound. Therefore, when the pressure or flow of the liquid reaches the set pressure or flow detection threshold, the sound generated by the high-frequency vibration of the valve core can be used as a monitoring signal for pressure or flow. At the same time, by performing spectrum analysis on the sound signal through Fourier transform, the frequency and sound pressure information of the sound signal can be obtained, so as to use the characteristics of the sound to identify the pressure and flow status of the liquid and realize real-time monitoring of whether the liquid is leaking or not.

[0045] It should be noted that within the leakage detection range, that is, when the pressure or flow rate Q of the liquid is less than or equal to the set safe working pressure or quantitative value of the flow rate, the high-frequency vibration of the valve core will stop, and the sound signal will disappear, which indicates that the current pressure and flow rate of the liquid are within the safe working range. Therefore, the detection circuit can only identify signals that exceed the set threshold, that is, when the liquid flow rate Q> the maximum flow threshold Qmax, or the liquid pressure is greater than the maximum pressure threshold, the valve core of the hydraulic valve will generate high-frequency vibration, thereby generating a corresponding sound signal. Therefore, the processor 3 can directly identify the pressure or flow of the fluid flowing through the hydraulic valve according to whether the digital signal corresponding to the sound signal is received, thereby realizing the leakage detection process of the hydraulic valve. This design not only improves the accuracy of leakage detection, but also provides a guarantee for the stable operation of the hydraulic system.

[0046] It is not difficult to understand that the generation of the sound signal is achieved by the high-frequency vibration caused by the interaction between the valve core structure and mass, the spring elastic force, and the flowing liquid in the boundary pipe. The specific type and internal structure of the hydraulic valve are not specifically limited in this application. Please refer to Figure 2 , Figure 2 This is a schematic diagram of the cross-sectional structure of the hydraulic valve when the valve core is in the first position; please refer to Figure 3 , Figure 3 is a schematic diagram of the cross-sectional structure of the hydraulic valve when the valve core is in the second position; as a specific embodiment, the hydraulic valve can be Figure 2 and Figure 3 In order to better illustrate the structural relationship of the present application, the direction of fluid flow is the forward direction, and the opposite direction is the backward direction. When the fluid flows in a curved manner, the direction of the fluid flow path is the forward direction.

[0047] The valve core is set in the valve body for sliding along the direction of fluid flow, and a valve port is formed between the valve core and the valve body, so that the valve core can slide relative to the valve body along the direction of fluid flow to adjust the size of the valve port. The size of the valve port is generally measured by the opening. In a fluid valve, when the valve core slides to the first position relative to the valve body along the direction of fluid flow, the valve port is in an open state, and the opening is generally at its maximum; when the valve core slides to the second position relative to the valve body along the direction of fluid flow, the valve port is in a minimum state, and the opening is generally at its minimum, so it can be regarded as a closed state (not completely closed), but fluid can still pass through. The movement of the valve core from the first position to the second position is generally along the direction of fluid flow, and the movement of the valve core from the second position to the first position is generally against the direction of fluid flow. Generally, when the valve core slides relative to the valve body along the direction of fluid flow to reduce the valve port, the valve core slides along the direction of fluid flow.

[0048] An elastic device is provided between the valve core and the valve body, and when the valve core slides relative to the valve body in a direction to reduce the valve opening formed between them, the elastic deformation of the elastic device increases. That is, when the valve core slides relative to the valve body in the direction of fluid flow to reduce the valve opening, the elastic device blocks the movement of the valve core in this direction, that is, when the valve core moves in the direction of reducing the valve opening, the elastic device gradually accumulates energy. The elastic device can be a compression elastic device, in which case the elastic device is gradually compressed and produces compression deformation when the valve core moves in the direction of reducing the valve opening; the elastic device can also be a tension elastic device, in which case the elastic device is gradually stretched and produces tension deformation when the valve core moves in the direction of reducing the valve opening.

[0049] The liquid inlet side of the valve core forms a pressure surface, wherein the liquid inlet side is the liquid-facing side, and faces in the opposite direction to the fluid flow direction, so that the fluid will impact the pressure surface and bear the pressure. The force on the pressure surface is opposite to the force of the elastic device on the valve core. The pressure surface is subjected to force, that is, the pressure surface is subjected to the impact force of the fluid flow, and the force direction is consistent with the fluid flow direction, while the force of the elastic device on the valve core is against the fluid flow direction, that is, the valve core is prevented from sliding along the fluid flow direction.

[0050] This makes it possible for the valve core to move when the fluid exerts a large impact on the pressure surface during use, so that when the elastic device is elastically deformed, the valve core and the elastic device will form a simple harmonic vibration. After research, it was found that under a certain vibration frequency, a relatively obvious vibration sound will occur at the valve core. Based on this, the processor 3 realizes leakage detection of the hydraulic valve, thereby realizing a hydraulic valve that integrates flow and / or pressure regulation, flow detection and leakage detection technology, and significantly improves the functionality and safety of the hydraulic valve.

[0051] It can be understood that the fluid flows in from the inlet, and the interaction between the valve core and the compression spring realizes the dynamic regulation of the flow rate. The passive balance characteristics of the spring change according to its parameters, flexibly responding to different flows, pressures and system conditions, and ensuring the balance of flow under nonlinear pressure drop. The movement of the valve core realizes the flow and pressure regulation mechanism of the hydraulic valve. As the flow increases or decreases, the valve core moves accordingly under the action of the spring, and adjusts the opening to control the flow and pressure. The valve has two states: fully open and slightly open, corresponding to the maximum and minimum flow rates, respectively, to ensure that the movement of the valve core is safe and controllable. When the flow or pressure exceeds the preset safety threshold, the valve core vibrates at high frequency to generate a recognizable sound signal. The sound signal can also be further captured and analyzed by an acoustic sensor, and the pressure and flow are monitored in real time, and an alarm is issued when the limit is exceeded. The spring automatically adjusts the position of the valve core according to the changes in pressure and flow, reduces the flow and pressure, and ensures the safety of the system. Leakage detection and automatic adjustment of the hydraulic valve are realized through the process of high-frequency vibration detection, spectrum analysis and automatic adjustment.

[0052] It should be noted that the warning pressure setting: the corresponding warning value of the fluid pressure and / or fluid flow can be set according to the limit pressure of the hydraulic system, that is, the threshold value is set. Once the fluid pressure and / or fluid flow reaches or exceeds this value, the processor 3 can also control the prompt module to immediately sound a buzzer alarm and display a warning message. On this basis, the set threshold value can also be set to 90% of the warning pressure to intervene in protection in advance to avoid safety accidents. When the server is shipped out of the factory for reliability experiments, the limit pressure of the hydraulic pipeline system inside the server has been measured to be A. Once the pressure reaches or exceeds A, leakage will occur, which may cause leakage of the hydraulic pipeline system and damage the server. For this reason, when designing the detection circuit, its warning pressure is also set to A. When the pressure reaches A, the processor 3 in the detection circuit will control the prompt module to sound a buzzer alarm and display a warning message on the display. The processor 3 continuously monitors and judges the leakage situation. Once a leakage is found, the water pump will be immediately controlled to stop running and all power supplies will be cut off to prevent the system from burning or safety accidents. In addition, the warning pressure of the detection circuit can also be set to 90% of A to protect the hydraulic pipeline system earlier and further avoid the occurrence of safety accidents.

[0053] It should be noted that after determining the pressure warning value or flow warning value of the hydraulic valve leakage alarm according to the ultimate pressure of the hydraulic pipeline or the actual application situation, the pressure warning value and / or flow warning value can be set by adjusting the number of coils, materials and wire diameter of the spring in the hydraulic valve, so that the hydraulic valve will only produce high-frequency vibration after the pressure of the fluid flowing through it reaches the corresponding pressure warning value or the flow reaches the corresponding flow warning value. The corresponding ultimate leakage pressure and flow are measured by reliability experiments carried out on the hydraulic pipeline or hydraulic system when it leaves the factory, and the hydraulic valve is designed based on this, so as to realize the warning pressure and flow leakage detection. Conversely, the designed hydraulic valve can be used to install the pressure and flow of a system that requires warning leakage detection.

[0054] It is understandable that the present application does not make any special restrictions on the specific type and setting position of the sound detection module 1. An optional embodiment is to set it within a certain range near the hydraulic valve so that it can detect sound signals. The sound detection module 1 can be implemented specifically by means of an acoustic sensor or the like. Regarding the specific implementation method and design parameters of the hydraulic valve, the switch design of the hydraulic valve must be able to cover the full range to adapt to various working conditions. The specific design parameters of the elastic device and the valve core can be designed according to the pressure or flow threshold value of the early warning leakage detection. The present application does not make any special restrictions on the specific type and implementation method of the data processing module 2 and the processor 3. It is sufficient to receive and process the sound signal. A prompt module connected to the processor 3 can also be further provided to give an alarm. The present application does not make any special restrictions on the specific type and implementation method of the prompt module. In actual applications, multiple hydraulic valves may be set in the hydraulic pipeline to realize different fluid delivery branches. At this time, a sound detection module 1 corresponding to each hydraulic valve can be set to realize leakage detection of each hydraulic valve. Only one data processing module 2 and processor 3 can be set to further save costs and reduce volume; multiple ones can also be set or set one-to-one with the sound detection module 1 to improve data processing speed.

[0055] The present invention provides a detection circuit for a hydraulic pipeline, based on which a leakage detection device and a detection method thereof can be realized, and a new technical path for leakage detection is provided; each module in the detection circuit is easy to produce and implement, and has easy manufacturability. There is no need to add an additional device for leakage detection, and leakage detection can be realized directly by using the hydraulic valve itself, which reduces the volume of the entire detection circuit and the hydraulic system, saves space, and is easy to integrate. It is suitable for a variety of liquid media, and the liquid medium has good compatibility; it is easy to install, and can effectively simplify the installation process and improve efficiency. The sound detection module 1 can be directly set near the hydraulic valve, so that the result of leakage detection is not affected by the external environment, has good environmental adaptability, low cost, is economical and affordable, and is easy to promote. It can realize leakage detection while effectively controlling the fluid, overcome the limitations of the existing technology, bring revolutionary improvements to related industries, improve the stability and safety of the entire hydraulic system, and promote the development of more efficient, safe and economical thermal fluid management systems.

[0056] The present invention provides a detection circuit for a hydraulic pipeline, comprising a sound detection module 1, a data processing module 2 and a processor 3. The sound detection module 1 is arranged near a valve core of a hydraulic valve. When the flow or pressure flowing through the hydraulic valve exceeds a safety threshold, the valve core of the hydraulic valve will vibrate at a high frequency, thereby generating a sound signal caused by the high-frequency vibration. The detection circuit captures the sound signal by arranging the sound detection module 1, thereby enabling real-time monitoring of the pressure and flow of the fluid flowing through the hydraulic valve. At the same time, the data processing module 2 can timely convert the sound signal into a digital signal and transmit it to the processor 3, so that the processor 3 can timely control the hydraulic pipeline to stop working, which can effectively avoid the damage to the entire hydraulic system caused by leakage when the pressure or flow exceeds the limit, thereby improving the safety and reliability of the entire hydraulic system.

[0057] Based on the above examples: Figure 4 , Figure 4 A schematic structural diagram of another detection circuit for a hydraulic pipeline provided by the present invention.

[0058] As an optional embodiment, the hydraulic pipeline further includes a water pump, and the water pump is used to transport the fluid in the hydraulic pipeline;

[0059] The output end of the processor 3 is connected to the control end of the water pump, and is specifically used to control the water pump to stop running when a digital signal corresponding to the sound signal is received, so as to control the hydraulic pipeline to stop conveying fluid.

[0060] It is understandable that, considering that a water pump is usually used in a hydraulic pipeline to transport the fluid in the pipeline, when there is leakage in the hydraulic valve, the hydraulic pipeline can be directly controlled to stop transporting the fluid by controlling the water pump to stop running, thereby effectively realizing the control of stopping the hydraulic pipeline. The specific type of water pump and the setting method are not particularly limited in this application. There may be multiple liquid delivery branches in the hydraulic pipeline. When the processor 3 detects a digital signal corresponding to the sound signal output by a sound detection module, the position of the corresponding hydraulic valve can be determined according to the sound detection module 1, so as to control the water pump set at the inlet and / or outlet of the hydraulic valve in the same fluid delivery branch as the hydraulic valve to stop running; it is also possible to directly control all water pumps in the hydraulic pipeline to stop running when there is leakage, so as to ensure the safety and reliability of the entire hydraulic pipeline.

[0061] Specifically, the processor 3 can not only use the sound detection module 1 and the data processing module 2 to detect leakage, but also can control and adjust the fluid transported by the hydraulic pipeline itself. By using the processor 3 to control the water pump in the hydraulic pipeline, it is possible to effectively achieve safety control in the event of leakage, thereby ensuring the safety and reliability of the hydraulic pipeline.

[0062] As an optional embodiment, the detection circuit of the hydraulic pipeline further includes:

[0063] A pressure gauge and / or flow meter is arranged at the outlet of the water pump, and the output end of the pressure gauge and / or flow meter is connected to the input end of the processor 3, so as to detect the fluid pressure and / or fluid flow at the outlet of the water pump, and output the fluid pressure and / or fluid flow to the processor 3;

[0064] The output end of the processor 3 is also connected to the control end of the hydraulic valve, and is also used to determine whether the fluid pressure and / or fluid flow exceeds the target value. If so, the opening of the hydraulic valve is controlled to decrease by a first preset value.

[0065] It is not difficult to understand that a pressure gauge and / or flow meter corresponding to the water pump can be additionally set at the outlet of the water pump. The pressure gauge and / or flow meter detects the pressure and / or flow of the fluid output by the corresponding water pump in real time. The processor 3 can determine whether the water pump stops running in the case of leakage based on the detection results of the pressure gauge and / or flow meter, and can also determine whether the pressure and / or flow of the fluid delivered by the water pump is consistent with the control requirements during the normal fluid delivery process. In the case that the pressure and / or flow of the fluid delivered by the water pump is inaccurate, the pressure and / or flow of the fluid can be adjusted by adjusting the opening of the hydraulic valve to ensure the accuracy and reliability of the water pump. The specific type and implementation method of the pressure gauge and / or flow meter are not specifically limited in this application. The pressure gauge can also be implemented by other types of pressure sensors, and the flow meter can also be implemented by other types of flow sensors. The specific value of the first preset value is not specifically limited in this application, and can be adjusted and set according to actual control requirements.

[0066] Specifically, a pressure gauge and / or flow meter corresponding to the water pump may be further added to the hydraulic pipeline so that the processor 3 can accurately control the water pump according to the detection results of the corresponding pressure gauge and / or flow meter to ensure the accuracy and reliability of the entire fluid delivery process.

[0067] As an optional embodiment, the detection circuit of the hydraulic pipeline further includes:

[0068] A temperature detection module, the output end of which is connected to the input end of the processor 3, for detecting the operating temperature of the cooling target and outputting the operating temperature to the processor 3;

[0069] The output end of the processor 3 is also connected to the control end of the hydraulic valve, and is also used to control the opening of the hydraulic valve to increase by a second preset value when the working temperature is greater than the normal temperature of the cooling target, and to control the opening of the hydraulic valve to decrease by a third preset value when the working temperature is lower than the normal temperature of the cooling target.

[0070] It is understandable that the hydraulic pipeline can be used as a liquid cooling system. When the hydraulic pipeline is used as a liquid cooling system, it is necessary to cool the cooling target by conveying fluid to avoid various problems caused by the working temperature of the cooling target being too high or too low. At this time, the hydraulic pipeline needs to adjust the flow rate of the conveyed fluid according to the different working temperatures of the cooling target. Therefore, in this case, it is necessary to set a temperature detection module to detect the working temperature of the cooling target in real time, and the processor 3 needs to adjust the opening of the hydraulic valve according to this working temperature, so as to realize the adjustment process of the fluid flow. When the working temperature of the cooling target is too high, the processor 3 needs to increase the opening of the hydraulic valve to speed up the fluid flow rate, thereby reducing the temperature; when the working temperature of the cooling target is too low, the processor 3 needs to reduce the opening of the hydraulic valve to slow down the fluid flow rate to avoid too low temperature. The specific values ​​of the second preset value and the third preset value are not particularly limited in this application, and can be adjusted and set according to the actual cooling requirements. The specific type and implementation method of the temperature detection module are not particularly limited in this application, and can be implemented by a thermometer or other types of temperature sensors.

[0071] Specifically, when the hydraulic pipeline is used as a liquid cooling pipeline, a temperature detection module can be added to detect the working temperature of the cooling target, so that the processor 3 can flexibly adjust the fluid flow in the hydraulic pipeline according to the real-time working temperature of the cooling target, ensuring that the working temperature of the cooling target can be maintained within the preset range of normal operation, thereby achieving accurate and effective liquid cooling.

[0072] As an optional embodiment, the detection circuit of the hydraulic pipeline further includes:

[0073] The opening detection module connected to the hydraulic valve has an output end connected to the input end of the processor 3, and is used to detect the opening of the hydraulic valve and output the opening to the processor 3 so that the processor 3 can determine whether there is an abnormality in the opening of the hydraulic valve.

[0074] It is not difficult to understand that in order to ensure that the processor 3 accurately controls the hydraulic valve, an opening detection module connected to the hydraulic valve can be added to detect the opening state of the hydraulic valve in real time. The processor 3 can judge whether the opening of the hydraulic valve is consistent with the control target based on the detection result of the opening detection module. If it is inconsistent, it means that there is an abnormality in the control, and the corresponding control instruction can be further output to adjust the opening of the hydraulic valve, thereby ensuring the accuracy and reliability of the control of the hydraulic valve. The specific type and implementation method of the opening detection module are not particularly limited in this application, and it can be implemented by a position sensor or an angle sensor.

[0075] Furthermore, the processor 3 can not only receive the sound signal sent by the sound detection module 1 through the data processing module 2, but also receive the data transmitted by the data acquisition terminal nodes such as the pressure gauge and / or flow meter, temperature detection module, and opening detection module set at the outlet of the water pump in the above embodiment. Therefore, a data acquisition system can be set up to be responsible for receiving the data transmitted by each data acquisition terminal node in real time, and sending the received data to the processor 3 after processing, so as to ensure that the signal received by the processor 3 is a digital signal that can be directly processed by itself. The data acquisition system includes a data processing module 2, which is mainly used to establish and maintain the communication channel between each data acquisition terminal and the processor 3, and can collect and synchronize the original data of each data acquisition terminal to achieve synchronization of data acquisition; it can also further save the original data, synchronize and save the original data in real time, and play the role of data backup; the data obtained by each data acquisition terminal node is transmitted to the central processor 3 for real-time collection and monitoring, and the processor 3 can judge whether each device is running normally through real-time device monitoring, and control it in real time according to the device or system status. When an abnormality occurs in a device, the time, location and other information of the occurrence can be saved to the database, a status log of each device can be generated, the working status of each device can be identified, and the data can be transmitted to the status monitoring host or central server. According to the control strategy, the flow rate, pressure and other control parameters of the water pump can be controlled, and the valve opening state can be adjusted to meet the requirements of efficient heat dissipation. The processor 3 can record abnormal events, generate status logs of each device and the entire hydraulic system, and perform alarm operations in the event of an abnormality.

[0076] Specifically, through real-time monitoring and automatic adjustment functions, the present invention can promptly detect and handle abnormal situations in the hydraulic system, significantly improving the safety of the system; the enhanced functionality of the hydraulic valve itself and the design that integrates multiple functions in one make the operation of the hydraulic valve more convenient and the function more complete; by centrally monitoring and managing the pressure and flow of multiple systems, the monitoring efficiency of the entire hydraulic pipeline and hydraulic system is improved, and the maintenance cost is reduced; the early warning mechanism and advance protection function help to take corresponding measures before potential failures occur, thereby extending the service life of the system and reducing maintenance costs, achieving the effect of preventive maintenance.

[0077] As an optional embodiment, the data processing module 2 includes:

[0078] An amplifier, whose input end is connected to the output end of the sound detection module 1 and is used to amplify the sound signal output by the sound detection module 1;

[0079] The analog-to-digital conversion circuit has an input end connected to the output end of the amplifier and an output end connected to the input end of the processor 3, and is used to convert the sound signal into a digital signal.

[0080] It can be understood that the detection circuit includes an acoustic sensor arranged on the valve body, a data processing module 2, a processor 3 and a communication network, and the data processing module 2 specifically includes a preamplifier, a data acquisition module, an A / D converter from analog signals to digital signals and a communication network, wherein the preamplifier is connected to the acoustic sensor to amplify the analog sound wave signal collected by the acoustic sensor, and the analog sound wave signal will complete data acquisition at a certain frequency through the data acquisition module, and the amplifier can specifically amplify the current and convert it into a voltage signal, and the output end of the amplifier is connected to the A / D converter through the data acquisition module, and the A / D converter converts the analog sound wave signal into a processable digital signal and transmits it to the central processor 3 through the communication network. The specific types and implementation methods of the amplifier and the analog-to-digital conversion module are not particularly limited in this application, and the analog-to-digital conversion module is not limited to the above-mentioned A / D converter.

[0081] Specifically, the acoustic sensor collects the sound wave signal, which is amplified by the preamplifier, converted by the data acquisition module, and finally transmitted to the central processor 3 through the communication network. The central processor 3 comprehensively processes the data from all sensors such as the sound detection module 1, flow meter, water pump, system temperature and electric valve, and realizes comprehensive monitoring and adjustment of system heat dissipation, flow, pressure and leakage detection through preset control strategies to ensure the safety and reliability of system operation.

[0082] As an optional embodiment, the data processing module 2 further includes:

[0083] The filter has an input end connected to the output end of the analog-to-digital conversion circuit and an output end connected to the input end of the processor 3, and is used to filter the digital signal.

[0084] It is not difficult to understand that in order to improve the accuracy of the digital signal received by the processor 3, a filter can be set in the data processing module 2 to filter the digital signal. The filter can filter out noise and output a filtered waveform of sound pressure or frequency. The specific type and implementation method of the filter are not particularly limited in this application. It can be implemented by bandpass filtering and other methods. In specific applications, it can be as follows Figure 4 As shown, it is arranged in a communication network, a receiver is arranged to receive a digital signal, and the digital signal is filtered by a filter after passing through a bandpass filter.

[0085] Specifically, by adding a filtering process for the signal output to the processor 3, the accuracy and reliability of the signal finally output to the processor 3 are improved, thereby ensuring the accuracy and reliability of the control process of the processor 3 on the hydraulic pipeline.

[0086] As an optional embodiment, the data processing module 2 further includes:

[0087] The memory has an input end connected to the output end of the sound detection module 1 and is used to store the received sound signal output by the sound detection module 1 .

[0088] It is understandable that a memory may be further provided in the data processing module 2 to implement a backup process of the original data received by the data processing, that is, the original sound signal. The specific type and implementation of the memory are not particularly limited in this application.

[0089] It is not difficult to understand that the data acquisition system receives signals from the corresponding acoustic sensor or other data acquisition terminal through the communication network, and then filters the received signal, and synchronizes the filtered waveform and all signals such as the flow meter, system temperature, and electric valve opening to the central processor 3 in real time for calculation and logical judgment, and then knows the pipeline status such as leakage, water pump, flow, temperature, valve opening status, and determines whether it is necessary to perform alarm and other operations, and escorts the safety and reliability of the server system heat dissipation through the control strategy set in advance. The data processed by the central processor 3 includes detection data from the acoustic sensor and from other devices such as the flow meter. The data acquisition system receives signals from each sensor through the communication network. In this way, the central processor 3 can monitor the leakage, water pump, flow, temperature and valve opening status in real time, and perform alarm and other operations, and at the same time can ensure the safety and reliability of the system heat dissipation according to the preset control strategy.

[0090] Specifically, by adding a memory in the data processing module 2, the original data of the sound detection module 1 can be effectively saved and backed up, which is convenient for subsequent call analysis, protects data, ensures the continuity of operation, and improves the working efficiency of the processor 3.

[0091] To effectively solve the above technical problems, the present invention also provides a liquid cooling system, including a hydraulic pipeline and a detection circuit for the hydraulic pipeline as described above, wherein the sound detection module 1 in the detection circuit of the hydraulic pipeline is arranged adjacent to the valve core of the hydraulic valve in the hydraulic pipeline.

[0092] It is understandable that the hydraulic pipeline can be specifically used in a liquid cooling system to dissipate heat from a heat source. At this time, the hydraulic valve can be flexibly set at the inlet or outlet of the liquid according to the heat dissipation requirements or the actual situation of the liquid; the sound detection module 1 can be correspondingly set within a preset range near the hydraulic valve. The liquid cooling system can also be called a refrigeration system, which can be integrated into a server. The main function of the refrigeration system is to perform forced convection heat dissipation for various heat sources (such as the CPU, GPU, memory and other devices in the server). The specific application of the hydraulic pipeline is not particularly limited here. Specifically, an integrated hydraulic pipeline system can be set inside the server, and each device in the integrated hydraulic pipeline system has the ability of convective heat transfer and heat dissipation. For example, a water pump circulates the hydraulic pipeline system, and a blower cooler transmits the pipeline heat energy to the air, etc., to achieve cooling and heat dissipation of the server.

[0093] For an introduction to a liquid cooling system provided by the present invention, please refer to the embodiment of the detection circuit of the hydraulic pipeline described above, and the present invention will not be described in detail here.

[0094] In order to effectively solve the above technical problems, the present invention further provides a server system, comprising a server and the aforementioned liquid cooling system, wherein the liquid cooling system is arranged adjacent to a mainboard of the server.

[0095] It is not difficult to understand that the liquid cooling system can be specifically integrated in the server and set adjacent to the mainboard of the server to cool and dissipate heat for various devices on the mainboard. At this time, the detection circuit can be flexibly configured according to different scenarios and requirements, and can be directly integrated inside the server or used as an external device, with high flexibility and strong applicability. When there is a need for pressure and flow monitoring across server systems, the detection circuit can be independent of the liquid cooling system and installed on multiple different or identical liquid cooling systems. This configuration allows users to centrally monitor and manage the pressure and flow of multiple liquid cooling systems so that they can work in a safe and reliable pressure and flow. By externally placing a leakage detection circuit, pressure and flow control can be performed on multiple identical or different liquid cooling systems. This design improves monitoring efficiency and reduces the demand for internal space in the server system. At the same time, the detection circuit can also be directly integrated into the hydraulic system and flexibly placed at the inlet or outlet of the hydraulic system according to monitoring requirements. This design allows real-time monitoring of the pressure and flow of the hydraulic system to ensure that the hydraulic system operates in the best state and realizes leakage monitoring in the hydraulic system and in the server.

[0096] Specifically, the present application provides designs of two types of leakage detection devices, internal and external, which can be flexibly selected according to actual needs to achieve pressure and flow monitoring and control of single or multiple systems. It has high flexibility. The design of the external leakage detection device reduces the occupation of the hydraulic system and the internal space of the server, which is conducive to the compact layout of the hydraulic system and the server, and reduces space requirements; the detection circuit can simultaneously monitor the pressure and flow of multiple key components in the hydraulic system; users can place the liquid leakage detection device before and after various components in the hydraulic pipeline as needed to ensure that the device is used at a safe pressure and flow, avoid seepage, leakage, etc., and achieve pressure and flow monitoring of multiple devices.

[0097] For an introduction to a server system provided by the present invention, please refer to the embodiment of the detection circuit of the hydraulic pipeline described above, and the present invention will not be described in detail here.

[0098] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the embodiments can be referred to each other. It should also be noted that in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also include elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements.

[0099] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0100] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A detection circuit for a hydraulic pipeline, characterized in that: The hydraulic pipeline includes a hydraulic valve, and the detection circuit of the hydraulic pipeline includes: A sound detection module, used to detect a sound signal generated by the vibration of a valve core in the hydraulic valve; A data processing module, whose input end is connected to the output end of the sound detection module, is used to receive the sound signal output by the sound detection module and convert the sound signal into a digital signal; The processor has an input end connected to the output end of the data processing module and an output end connected to the hydraulic pipeline, and is used to control the hydraulic pipeline to stop conveying fluid when a digital signal corresponding to the sound signal is received.

2. The detection circuit of the hydraulic pipeline according to claim 1, characterized in that: The hydraulic pipeline further comprises a water pump, and the water pump is used to transport the fluid in the hydraulic pipeline; The output end of the processor is connected to the control end of the water pump, and is specifically used to control the water pump to stop running when a digital signal corresponding to the sound signal is received, so as to control the hydraulic pipeline to stop conveying fluid.

3. The detection circuit of the hydraulic pipeline according to claim 2, characterized in that: The detection circuit of the hydraulic pipeline also includes: a pressure gauge and / or a flow meter disposed at the outlet of the water pump, wherein the output end of the pressure gauge and / or the flow meter is connected to the input end of the processor, and is used to detect the fluid pressure and / or the fluid flow at the outlet of the water pump, and output the fluid pressure and / or the fluid flow to the processor; The output end of the processor is also connected to the control end of the hydraulic valve, and is also used to determine whether the fluid pressure and / or the fluid flow exceeds the target value. If so, the opening of the hydraulic valve is controlled to decrease by a first preset value.

4. The detection circuit of the hydraulic pipeline according to claim 1, characterized in that: The detection circuit of the hydraulic pipeline also includes: A temperature detection module, the output end of which is connected to the input end of the processor, for detecting the operating temperature of the cooling target and outputting the operating temperature to the processor; The output end of the processor is also connected to the control end of the hydraulic valve, and is also used to control the opening of the hydraulic valve to increase by a second preset value when the working temperature is greater than the normal temperature of the cooling target, and to control the opening of the hydraulic valve to decrease by a third preset value when the working temperature is lower than the normal temperature of the cooling target.

5. The detection circuit of the hydraulic pipeline according to claim 4, characterized in that: The detection circuit of the hydraulic pipeline also includes: An opening detection module connected to the hydraulic valve has an output end connected to the input end of the processor, and is used to detect the opening of the hydraulic valve and output the opening to the processor so that the processor can determine whether there is an abnormality in the opening of the hydraulic valve.

6. The detection circuit of the hydraulic pipeline according to any one of claims 1 to 5, characterized in that: The data processing module comprises: An amplifier, whose input end is connected to the output end of the sound detection module and is used to amplify the sound signal output by the sound detection module; The analog-to-digital conversion circuit has an input end connected to the output end of the amplifier and an output end connected to the input end of the processor, and is used to convert the sound signal into a digital signal.

7. The detection circuit of the hydraulic pipeline according to claim 6, characterized in that: The data processing module also includes: A filter, whose input end is connected to the output end of the analog-to-digital conversion circuit and whose output end is connected to the input end of the processor, is used to filter the digital signal.

8. The detection circuit of the hydraulic pipeline according to claim 6, characterized in that: The data processing module also includes: The memory has an input end connected to the output end of the sound detection module and is used to store the received sound signal output by the sound detection module.

9. A liquid cooling system, characterized in that: It comprises a hydraulic pipeline and a detection circuit for the hydraulic pipeline as claimed in any one of claims 1 to 8, wherein a sound detection module in the detection circuit for the hydraulic pipeline is arranged adjacent to a valve core of a hydraulic valve in the hydraulic pipeline.

10. A server system, characterized in that: It comprises a server and the liquid cooling system as claimed in claim 9, wherein the liquid cooling system is arranged adjacent to a mainboard of the server.

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