Radiation source heat dissipation method and system

Abstract

The invention provides a radiation source heat dissipation method and system, and the method comprises the steps: carrying out the heat dissipation of a radiation source through a cooling medium in a cooling loop, obtaining a plurality of working condition parameters related to the heat dissipation effect, carrying out the evaluation, and adjusting at least one target parameter based on a preset rule if an evaluation standard is met. The heat dissipation process is effectively monitored through the detection unit, the control unit adjusts the working condition parameters in time according to the feedback of the detection unit, the safety of the system is ensured, the control unit adjusts the working condition parameters in real time based on the preset rule, the good heat dissipation effect and efficiency can be achieved, and the service life of the system is prolonged. Meanwhile, noise and energy consumption are controlled within a target range, and intelligent energy-saving control is achieved.

Description

Technical Field

[0001] The present disclosure relates to the field of security inspection technology, and more specifically, to a radiation source heat dissipation method and system. Background Art

[0002] The radiation devices of security inspection equipment (such as X-ray machines and CT scanners) generate significant heat during operation. If this heat cannot be dissipated promptly, it can lead to performance degradation or even damage. In particular, the new generation of CT systems with distributed X-ray light sources, also known as static CT, utilizes multiple X-ray point sources arranged in a spatial sequence within a single vacuum chamber. These devices can trigger X-ray generation based on specific temporal and spatial sequences, representing a new type of X-ray light source. During operation, an electron beam is generated at the cathode. This electron beam is accelerated by a high-voltage electric field and then strikes an anode target, generating X-rays. From an energy perspective, only a small portion of the electron beam's kinetic energy is converted into effective X-rays; the vast majority of the kinetic energy is directly converted into heat, deposited on the anode target. If this heat is not promptly dissipated, the anode target temperature can rise dramatically, rapidly causing burnout or melting. To ensure the long-term, continuous, and stable operation of distributed X-ray light sources, forced cooling of the anodes of their core power devices is required.

[0003] Existing cooling system control systems suffer from the following issues: low control accuracy, an inability to dynamically adjust cooling efficiency based on the equipment's actual operating conditions; high energy consumption, a lack of intelligent energy-saving control; insufficient system protection, a lack of effective monitoring and early warning capabilities; and insufficient system stability, prone to temperature fluctuations and overcooling. Therefore, a more intelligent, efficient, and stable cooling system control system is needed to meet the specific needs of security inspection equipment. Summary of the Invention

[0004] In view of the above problems, the present disclosure provides a radiation source heat dissipation method and system, which dissipates heat from the radiation source through a cooling medium in a cooling circuit, obtains and evaluates multiple operating parameters related to the heat dissipation effect, and adjusts at least one target parameter based on preset rules if the evaluation criteria are met. The present disclosure effectively monitors the heat dissipation process through a detection unit, and the control unit promptly adjusts the operating parameters based on the feedback from the detection unit, ensuring the safety of the system. The control unit also adjusts the operating parameters in real time based on preset rules, which can achieve good heat dissipation effect and efficiency, while controlling noise and energy consumption within target ranges, realizing intelligent energy-saving control.

[0005] According to one aspect of the present disclosure, a radiation source heat dissipation method is provided, comprising:

[0006] In response to a cooling medium in a cooling circuit dissipating heat to a radiation source, obtaining a plurality of operating parameters of the cooling circuit, wherein the plurality of operating parameters are related to a heat dissipation effect of the cooling medium on the radiation source;

[0007] evaluating the plurality of operating condition parameters;

[0008] When the multiple operating parameters meet the evaluation criteria, adjusting at least one target parameter among the multiple operating parameters based on a preset rule to control the cooling medium to dissipate heat from the radiation source;

[0009] The preset rule is determined according to at least one of the adjustment priorities of the plurality of operating parameters, the target noise of the cooling circuit, and the target energy consumption of the cooling circuit.

[0010] According to an embodiment of the present disclosure, adjusting at least one target parameter among the multiple operating parameters based on a preset rule includes:

[0011] adjusting the at least one target parameter based on the order of the adjustment priorities so that the cooling circuit has a target state;

[0012] The target state includes that the noise of the cooling circuit is less than or equal to a target noise, and / or the energy consumption of the cooling circuit is less than or equal to a target energy consumption.

[0013] According to an embodiment of the present disclosure, the plurality of operating parameters include a liquid level of a cooling medium in a storage unit of the cooling circuit, and the method further includes:

[0014] When the liquid level is less than or equal to the target height, a prompt message is issued;

[0015] According to the feedback of the prompt information, the opening and closing of the radiation source are controlled.

[0016] According to an embodiment of the present disclosure, evaluating the plurality of operating parameters includes at least one of the following:

[0017] evaluating a pressure value of a cooling medium in a pipeline of the cooling circuit, and adjusting the pressure value when the pressure value meets a first evaluation criterion, wherein the first evaluation criterion includes the pressure value being greater than a target pressure value;

[0018] evaluating a flow rate of a cooling medium in a pipeline of the cooling circuit, and adjusting the flow rate when the flow rate meets a second evaluation criterion, wherein the second evaluation criterion includes that the flow rate is less than a target flow rate;

[0019] evaluating a return temperature of the cooling medium in the pipeline of the cooling circuit, and adjusting the return temperature when the return temperature meets a third evaluation criterion, wherein the third evaluation criterion includes that the return temperature is greater than or equal to a target return temperature;

[0020] A first temperature difference value of the cooling medium in the pipeline of the cooling circuit is evaluated, where the first temperature difference value is the difference between the outflow temperature and the return temperature of the cooling medium. When the first temperature difference value exceeds a target temperature difference setting value, the first temperature difference value is adjusted.

[0021] According to an embodiment of the present disclosure, the adjustment priorities of the multiple operating parameters are the liquid level height, the pressure value, the flow value, the reflux temperature, and the first temperature difference value.

[0022] According to an embodiment of the present disclosure, the pressure value is adjusted by adjusting the opening of a throttling element provided on a pipeline of the cooling circuit.

[0023] According to an embodiment of the present disclosure, adjusting the flow value includes:

[0024] Obtaining a flow rate deviation value between the flow rate value and the target flow rate value;

[0025] The speed of the variable frequency pump is adjusted based on the flow deviation value to adjust the flow value.

[0026] According to an embodiment of the present disclosure, adjusting the speed of the variable frequency pump based on the flow deviation value includes:

[0027] Inputting the flow deviation value into a speed adjustment algorithm to obtain a target speed of the variable frequency pump;

[0028] The variable frequency pump is controlled to operate based on its target speed so that noise of the variable frequency pump is less than or equal to a first target noise, and / or energy consumption of the variable frequency pump is less than or equal to a first target energy consumption.

[0029] According to an embodiment of the present disclosure, the reflow temperature is adjusted by adjusting the rotation speed of the heat dissipation fan.

[0030] According to an embodiment of the present disclosure, adjusting the first temperature difference value includes:

[0031] Obtaining a temperature deviation value between the first temperature difference value and the second temperature difference value;

[0032] adjusting the rotation speed of the cooling fan based on the temperature deviation value to adjust the first temperature difference value;

[0033] The second temperature difference value is a correction value of the target temperature difference setting value, and the second temperature difference value is related to the inlet air temperature of the heat dissipation fan.

[0034] According to an embodiment of the present disclosure, obtaining the second temperature difference value includes:

[0035] The difference between the inlet air temperature feedback value and the inlet air temperature reference value of the heat dissipation fan is adjusted by a preset compensation coefficient to obtain a correction factor;

[0036] The target temperature difference setting value is corrected based on the correction factor.

[0037] According to an embodiment of the present disclosure, adjusting the speed of the cooling fan based on the temperature deviation value includes:

[0038] Inputting the temperature deviation value into a temperature adjustment algorithm to obtain a target speed of the cooling fan;

[0039] The heat dissipation fan is controlled to operate based on its target speed so that the noise of the heat dissipation fan is less than or equal to a second target noise, and / or the energy consumption of the heat dissipation fan is less than or equal to a second target energy consumption.

[0040] According to an embodiment of the present disclosure, the number of the heat dissipation fan is at least one, and adjusting the rotational speed of the heat dissipation fan includes: controlling the plurality of heat dissipation fans to operate based on corresponding target rotational speeds respectively.

[0041] According to an embodiment of the present disclosure, the method further includes:

[0042] Displaying multiple operating parameters of the cooling circuit through a human-machine interface; and

[0043] In response to a user's operation on the at least one target parameter on the human-machine interface, the at least one target parameter is adjusted.

[0044] According to another aspect of the present disclosure, a radiation source heat dissipation system is provided, wherein the radiation source heat dissipation system is configured to perform any of the above-mentioned heat dissipation methods, including:

[0045] a thermal management unit, configured to provide the cooling medium to dissipate heat from the radiation source;

[0046] A detection unit, used to obtain multiple operating parameters of the cooling circuit;

[0047] A control unit is connected to the thermal management unit and the detection unit, and is used to evaluate the multiple operating parameters and adjust at least one target parameter among the multiple operating parameters based on preset rules to control the cooling medium to dissipate heat from the radiation source.

[0048] According to an embodiment of the present disclosure, the thermal management unit includes:

[0049] A storage device for storing the cooling medium;

[0050] an outflow pipeline, connected to the storage device, defining a delivery channel for the cooling medium to flow into the radiation source;

[0051] a return line, connected to the storage device, defining a delivery channel for the cooling medium after it flows out of the radiation source;

[0052] A variable frequency pump, used for drawing the cooling medium from the storage device and delivering it into the outflow pipeline;

[0053] The storage device, the variable frequency pump, the outflow pipeline, the radiation source and the return pipeline constitute a circulating flow loop of the cooling medium.

[0054] According to an embodiment of the present disclosure, the thermal management unit further includes a radiator and at least one heat dissipation fan, the radiator is in communication with the outflow pipeline, and the heat dissipation fan is used to dissipate heat from the cooling medium entering the radiator.

[0055] According to an embodiment of the present disclosure, a first liquid level sensor and a second liquid level sensor are provided in the storage device, and the height of the first liquid level sensor is lower than that of the second liquid level sensor, wherein the first liquid level sensor is used to detect the safe liquid level, and the second liquid level sensor is used to detect the replenishing liquid level.

[0056] According to an embodiment of the present disclosure, the detection unit includes:

[0057] a first temperature sensor, disposed on the outflow pipeline, for detecting the outflow temperature of the cooling medium;

[0058] a second temperature sensor, disposed on the return line, for detecting the return temperature of the cooling medium;

[0059] The third temperature sensor is used to detect the inlet air temperature of the heat dissipation fan.

[0060] According to an embodiment of the present disclosure, the detection unit further includes:

[0061] A pressure sensor, used to detect the pressure value of the circulating flow loop of the cooling medium;

[0062] The flow sensor is used to detect the flow value of the circulating flow loop of the cooling medium.

[0063] According to an embodiment of the present disclosure, the system further includes a human-machine interface, which is communicatively connected to the control unit and is used to display multiple operating parameters of the cooling circuit and adjust at least one target parameter among the multiple operating parameters.

[0064] According to an embodiment of the present disclosure, a circuit breaker is provided at the power supply input end of the heat dissipation system, and the circuit breaker is used to disconnect and isolate the power supply of the heat dissipation system and to provide overcurrent protection for the heat dissipation system.

[0065] According to an embodiment of the present disclosure, a filter is provided at the power supply input end of the heat dissipation system, and the filter is used to reduce electromagnetic interference generated by the thermal management unit during operation.

[0066] According to an embodiment of the present disclosure, the control unit and the thermal management unit perform signal transmission and control instruction interaction via a hard-wired connection and / or a communication connection.

[0067] One or more of the above embodiments have the following beneficial effects:

[0068] 1) The detection unit acquires multiple operating parameters of the cooling circuit in real time and transmits them to the control unit. The detection unit can effectively monitor the heat dissipation process. The control unit promptly adjusts multiple operating parameters based on the feedback from the detection unit, ensuring that the system operates within a safe range.

[0069] 2) The control unit first evaluates multiple operating parameters and then adjusts at least one target parameter in real time based on preset rules, thereby achieving good heat dissipation effect and high heat dissipation efficiency. In addition, it can also control the system noise and energy consumption within the target range, realizing intelligent energy-saving control;

[0070] 3) Signal transmission and control command interaction are carried out through hard-wired connections and / or communication connections, which not only realizes flexible monitoring and control, but also reduces abnormal situations such as stalls, avoids damage to the radiation source, and ensures safe operation of the equipment;

[0071] 4) The human-machine interface displays multiple operating parameters of the cooling circuit, and at least one target parameter among the multiple operating parameters can be adjusted, which greatly improves the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] The above contents and other objects, 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:

[0073] Figure 1 is a structural diagram of a radiation source heat dissipation system according to some exemplary embodiments of the present disclosure.

[0074] Figure 2 is a control principle diagram of a radiation source heat dissipation system according to some exemplary embodiments of the present disclosure.

[0075] Figure 3 is a schematic diagram of a human-machine interface according to some exemplary embodiments of the present disclosure.

[0076] Figure 4 is a flow chart of a radiation source heat dissipation method according to some exemplary embodiments of the present disclosure.

[0077] Figure 5 is a flow chart of estimating a liquid level according to some exemplary embodiments of the present disclosure.

[0078] Figure 6 is a flow chart of adjusting a flow rate value according to some exemplary embodiments of the present disclosure.

[0079] Figure 7 is a flow chart of adjusting a first temperature difference value according to some exemplary embodiments of the present disclosure.

[0080] Figure 8 is a flow chart of obtaining a second temperature difference value according to some exemplary embodiments of the present disclosure.

[0081] Figure 9 is a flowchart of adjusting multiple operating parameters according to some exemplary embodiments of the present disclosure.

[0082] It should be noted that, for the sake of clarity, in the drawings used to describe the embodiments of the present disclosure, the sizes of the overall / local structures or overall / local areas may be enlarged or reduced, that is, these drawings are not drawn according to the actual scale.

[0083] Component number description

[0084] 101 Storage devices 102 Outflow pipe 103 Return line 104 variable frequency pump 105 heat sink 106 cooling fan 107 First liquid level sensor 108 Second liquid level sensor 109 First temperature sensor 110 Second temperature sensor 111 The third temperature sensor 112 pressure sensor 113 Flow sensor 114 Throttling element 115 Human-Machine Interface 201 Radiation source 202 control unit DETAILED DESCRIPTION

[0085] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present disclosure. In the detailed description below, 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 well-known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present disclosure.

[0086] 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 presence of the features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0087] All terms used herein (including technical and scientific terms) 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.

[0088] When expressions such as "at least one of A, B, and C, etc." are used, they should generally be interpreted in accordance with the meaning 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.).

[0089] Figure 1 The structure of the radiation source heat dissipation system according to an embodiment of the present application is schematically shown.

[0090] like Figure 1 As shown, the radiation source heat dissipation system includes a thermal management unit, a detection unit, and a control unit. This heat dissipation system is used to cool radiation source 201, which can be, for example, a distributed X-ray light source. The thermal management unit is used to provide a cooling medium to dissipate heat from radiation source 201; the detection unit is used to obtain multiple operating parameters of the cooling circuit; and the control unit is connected to the thermal management unit and the detection unit to evaluate the multiple operating parameters and adjust at least one target parameter among the multiple operating parameters based on preset rules to control the cooling medium to dissipate heat from radiation source 201.

[0091] like Figure 1 As shown, in some embodiments, the thermal management unit may include: a storage device 101 , an outflow pipeline 102 , a return pipeline 103 and a variable frequency pump 104 .

[0092] The storage device 101 is configured to store cooling medium. An outflow pipe 102 communicates with the storage device 101, defining a channel for the cooling medium to flow into the radiation source 201. A return pipe 103 communicates with the storage device 101, defining a channel for the cooling medium to flow out of the radiation source 201. A variable frequency pump 104 draws cooling medium from the storage device 101 and delivers it to the outflow pipe 102. The storage device 101, variable frequency pump 104, outflow pipe 102, radiation source 201, and return pipe 103 form a cooling medium circulation loop, which circulates the cooling medium within this circulation loop, facilitating sustainable heat dissipation.

[0093] In this embodiment, variable frequency pump 104 can adjust the speed of its internal motor in real time based on instructions from the control unit, thereby flexibly controlling the flow rate of the cooling medium to meet the heat dissipation requirements under different operating conditions. When cooling the radiation source 201, variable frequency pump 104 provides sufficient cooling capacity to ensure that the heat generated by the radiation source 201 during operation is quickly removed, thereby achieving effective heat dissipation. Furthermore, it can save energy by optimizing the flow rate. Furthermore, the variable frequency speed regulation feature of variable frequency pump 104 helps reduce mechanical noise during operation and optimize the working environment.

[0094] As a preferred solution, the cooling medium can be insulating oil to ensure that the cooling medium is not broken down under high-voltage conditions. The insulating oil can be, for example, No. 95 transformer oil. When the cooling medium is insulating oil, the storage device 101 can be an insulating oil tank. Relative to the heat dissipation system, the outflow pipe 102 can be understood as an oil outlet pipe, and the return pipe 103 can be understood as an oil inlet pipe. Through this circulating flow loop, closed-loop control is achieved, and the cooled insulating oil is continuously transported to the radiation source 201 to take away the heat generated by the radiation source 201. During this circulation process, the cooling medium always operates in a closed environment and does not contact the outside world to prevent the cooling medium from invading water vapor or being contaminated, resulting in a decrease in insulation capacity and causing an ignition accident.

[0095] like Figure 1 As shown, a first liquid level sensor 107 and a second liquid level sensor 108 are provided in the storage device 101. The height of the first liquid level sensor 107 is lower than that of the second liquid level sensor 108. The first liquid level sensor 107 is used to detect a safe liquid level. When the liquid level of the cooling medium in the storage device 101 is lower than or equal to the height of the first liquid level sensor 107, the first liquid level sensor 107 issues a first prompt message, indicating that the capacity of the cooling medium in the storage device 101 is too low and the operation of the radiation source 201 needs to be stopped immediately to ensure the safety of the radiation source 201. The second liquid level sensor 108 is used to detect a replenishment level. When the liquid level of the cooling medium in the storage device 101 is lower than or equal to the height of the second liquid level sensor 108, the second liquid level sensor 108 issues a second prompt message, indicating that the capacity of the cooling medium in the storage device 101 is low and the cooling medium needs to be replenished. However, the radiation source 201 can continue to operate.

[0096] like Figure 1 As shown, in some embodiments, the thermal management unit may further include: a radiator 105 and a cooling fan 106. The radiator 105 is connected to the outlet pipe 102, and the cooling fan 106 blows cold air from outside the cooling system into the system to form a cooling airflow to dissipate heat from the cooling medium entering the radiator 105.

[0097] As an example, this heat dissipation system features two flow patterns: one for cooling airflow and the other for cooling medium, with at least two heat exchanges occurring. The cooling medium flows through radiation source 201, exchanging heat with its core heat-generating components before entering radiator 105 and exchanging heat with the cooling airflow. This cools the core heat-generating components of radiation source 201 and conducts heat generated by radiation source 201 to the exterior of the heat dissipation system. By maintaining the uninterrupted flow of cooling airflow and cooling medium, the core heat-generating components of radiation source 201 are continuously cooled, ensuring their proper operation.

[0098] As an example, the radiator 105 may adopt a finned tube structure with good heat dissipation performance to increase the heat dissipation surface area and improve the heat dissipation efficiency.

[0099] As an example, the number of heat dissipation fans 106 is at least one. For example, in this embodiment, the number of heat dissipation fans 106 is two. In other optional embodiments, the number of heat dissipation fans 106 can be three or more. The number and arrangement of heat dissipation fans 106 can be reasonably selected based on the heat dissipation amount and heat dissipation efficiency. The present disclosure does not limit the specific number of heat dissipation fans 106.

[0100] like Figure 1 As shown, in some embodiments, the detection unit may include: a first temperature sensor 109 , a second temperature sensor 110 and a third temperature sensor 111 .

[0101] A first temperature sensor 109 is provided on the outflow pipe 102 for detecting the outflow temperature of the cooling medium in the outflow pipe 102. A second temperature sensor 110 is provided on the return pipe 103 for detecting the return temperature of the cooling medium in the return pipe 103. A third temperature sensor 111 is provided near the cooling fan 106 for detecting the inlet air temperature of the cooling fan 106.

[0102] like Figure 1 As shown, in some embodiments, the detection unit may further include: a pressure sensor 112 and a flow sensor 113. The pressure sensor 112 is used to detect the pressure value of the circulating flow loop of the cooling medium, and the flow sensor 113 is used to detect the flow value of the circulating flow loop of the cooling medium.

[0103] For example, in this embodiment, the pressure sensor 112 is arranged on the outflow pipeline 102 to detect the pressure value of the cooling medium in the outflow pipeline 102; the flow sensor 113 is arranged on the outflow pipeline 102 to detect the flow value of the cooling medium in the outflow pipeline 102.

[0104] like Figure 1 As shown, a throttling element 114 is further provided on the outflow pipeline 102. By adjusting the opening of the throttling element 114, the pressure of the cooling medium in the outflow pipeline 102 can be adjusted. In this embodiment, the throttling element 114 is an electronic expansion valve. The opening of the electronic expansion valve is controlled by an electrical signal, which can accurately adjust the flow rate of the cooling medium flowing to the radiation source 201.

[0105] Figure 2 The control principle diagram of the radiation source heat dissipation system according to an embodiment of the present application is schematically shown.

[0106] like Figure 2As shown, the control unit 202 is connected to the thermal management unit and the detection unit. The detection unit transmits the acquired multiple operating parameters to the control unit 202. For example, in this embodiment, the first liquid level sensor 107, the second liquid level sensor 108, the first temperature sensor 109, the second temperature sensor 110, the third temperature sensor 111, the pressure sensor 112, and the flow sensor 113 transmit the acquired multiple operating parameters to the control unit 202. The control unit 202 evaluates the multiple operating parameters based on a preset control strategy or algorithm and issues corresponding control instructions to the thermal management unit based on preset rules. The thermal management unit adjusts at least one of the variable frequency pump 104, the cooling fan 106, and the throttling element 114 according to the control instructions to adjust at least one target parameter among the multiple operating parameters, thereby achieving a good heat dissipation effect.

[0107] As an example, the control unit 202 may include a host computer, a terminal device (such as a mobile phone, a laptop computer, a desktop computer or other devices) or a server (such as a local server or a cloud server), etc.

[0108] As an example, the control unit 202 and the thermal management unit exchange signals and control commands via a hardwired connection and / or a communication connection. Preferably, a combination of hardwired and communication connections is used for signal transmission and control command exchange. This allows for flexible monitoring and control while reducing abnormalities such as stalls, avoiding damage to the radiation source 201 and ensuring safe operation of the device.

[0109] In some embodiments, the cooling fan 106 has a separate control signal line, and can have pulse width modulation (PWM), 0~10V and other control methods. The control unit 202 can achieve precise control of the cooling fan 106, while having good cooling effect, energy saving, low noise and other advantages.

[0110] like Figure 2 As shown, a circuit breaker QA is provided at the power input end of the cooling system. The circuit breaker QA is used to disconnect and isolate the power supply of the cooling system to ensure that workers can operate safely and avoid electric shock hazards when repairing or replacing parts. It can also provide overcurrent protection for the cooling system. When abnormal current appears in the cooling system, the circuit breaker QA will quickly cut off the power supply to prevent damage to the circuits and components in the cooling system due to excessive current, thereby ensuring the stable operation of the cooling system and the safety of the equipment.

[0111] like Figure 2 As shown, a filter RF is provided at the power input end of the heat dissipation system, and the filter RF is used to reduce electromagnetic interference generated by the thermal management unit during operation, for example, reducing interference of the variable frequency pump 104 and the heat dissipation fan 106 on external devices.

[0112] like Figure 2 As shown, the heat dissipation system is provided with a switching power supply TB, which can power the system without an external DC power supply, thus reducing the demand for an external power supply.

[0113] like Figure 2 As shown, the cooling system further includes a human-machine interface 115, which is in communication with the control unit 202 and is used to display multiple operating parameters of the cooling circuit and adjust at least one target parameter among the multiple operating parameters. As an example, the human-machine interface 115 can be any interface form that can achieve the above functions. In this embodiment, a human-machine interface (HMI) touch screen is used as an example. Figure 3 As shown, the parameters that can be displayed and adjusted by the human-machine interface 115 include but are not limited to the outflow temperature of the cooling medium, the return temperature of the cooling medium, the inlet temperature of the cooling fan, the flow value and pressure value of the cooling medium. The specific parameters can be set according to actual needs.

[0114] The following will be based on Figure 1 The radiation source cooling system described is Figures 4 to 9 The radiation source heat dissipation method of the embodiment of the present application is described in detail.

[0115] Figure 4 The flowchart of the radiation source heat dissipation method according to an embodiment of the present application is schematically shown.

[0116] like Figure 4 As shown, the radiation source heat dissipation method of this embodiment includes operations S310 to S330.

[0117] In operation S310 , in response to a cooling medium in a cooling circuit dissipating heat on a radiation source, a plurality of operating parameters of the cooling circuit are acquired, where the plurality of operating parameters are related to a heat dissipation effect of the cooling medium on the radiation source.

[0118] The radiation source heat dissipation system is activated, and the cooling medium in the cooling circuit dissipates heat from the radiation source 201. For example, the variable frequency pump 104 pumps the cooling medium (e.g., insulating oil) out of the storage device 101. The cooling medium then flows through the radiator 105 via a pipe. The cooling fan 106 continuously blows cold air onto the surface of the radiator 105, removing heat from the cooling medium and thereby cooling the cooling medium. The cooling medium then passes through the throttling element 114, the flow sensor 113, the first temperature sensor 109, and the pressure sensor 112, and enters the radiation source 201 through the outflow pipe 102. The radiation source 201 generates a large amount of heat during operation. After flowing out of the radiation source 201, the cooling medium removes this heat, thereby reducing the temperature of the radiation source 201. At this point, the temperature of the cooling medium increases accordingly. The heated cooling medium then flows back to the storage device 101 through the return pipe 103 and the second temperature sensor 110, completing a cooling cycle.

[0119] During the heat dissipation process, the detection unit can obtain multiple operating parameters of the cooling circuit, which are related to the heat dissipation effect of the cooling medium on the radiation source 201. For example, the detection unit includes: a first liquid level sensor 107 and a second liquid level sensor 108 that can detect the liquid level of the cooling medium in the storage device 101; a first temperature sensor 109 that can detect the temperature of the cooling medium in the outflow pipeline 102, and a second temperature sensor 110 that can detect the temperature of the cooling medium in the return pipeline 103; a third temperature sensor 111 that can detect the inlet air temperature of the heat dissipation fan 106; a pressure sensor 112 that can detect the pressure value of the cooling medium in the outflow pipeline 102; and a flow sensor 113 that can detect the flow value of the cooling medium in the outflow pipeline 102.

[0120] Figure 5 A flow chart for evaluating the liquid level of a cooling medium in a storage device according to an embodiment of the present disclosure is schematically shown.

[0121] Before operation S320, the liquid level of the cooling medium in the storage device 101 may also be evaluated. Figure 5 As shown, this embodiment evaluates the liquid level of the cooling medium in the storage device 101 and includes operations S410 to S420.

[0122] In operation S410, when the liquid level is less than or equal to the target height, a prompt message is issued. For example, when the first liquid level sensor 107 detects that the liquid level of the cooling medium in the storage device 101 is less than or equal to the height of the first liquid level sensor 107, the first liquid level sensor 107 issues a first prompt message; when the second liquid level sensor 108 detects that the liquid level of the cooling medium in the storage device 101 is less than or equal to the height of the second liquid level sensor 108, the second liquid level sensor 108 issues a second prompt message.

[0123] In operation S420, the X-ray source is controlled to be turned on and off based on the feedback from the prompt information. For example, the first prompt information may indicate that the cooling medium capacity in storage device 101 is too low and the operation of X-ray source 201 needs to be stopped immediately to ensure the safety of X-ray source 201. The second prompt information may indicate that the cooling medium capacity in storage device 101 is low and needs to be replenished, but X-ray source 201 can continue to operate.

[0124] In operation S320 , multiple operating parameters are evaluated. For example, the control unit 202 evaluates the multiple operating parameters including at least one of the following: pressure, flow, return temperature, and first temperature difference of the cooling medium in the cooling circuit pipeline.

[0125] When pressure sensor 112 detects that the pressure of the coolant in outlet pipe 102 meets a first evaluation criterion, where the first evaluation criterion includes a pressure value greater than a target pressure value, it indicates that the pressure in outlet pipe 102 is excessive and needs to be adjusted. The specific value of the target pressure value can be set according to actual needs. For example, in this embodiment, the target pressure value can be set to 3 bar.

[0126] When flow sensor 113 detects that the flow rate of the cooling medium in outflow pipe 102 meets the second evaluation criterion, where the second evaluation criterion includes the flow rate being less than the target flow rate, it indicates that the flow rate in outflow pipe 102 is too low and the flow rate needs to be adjusted. The specific value of the target flow rate can be set according to actual needs. For example, in this embodiment, the target flow rate can be set to 10 L / min.

[0127] When the second temperature sensor 110 detects that the return temperature of the cooling medium meets the third evaluation criterion, where the third evaluation criterion includes the return temperature being greater than or equal to the target return temperature, it indicates that the cooling medium exiting the radiation source 201 carries a significant amount of heat. Therefore, the cooling medium entering the radiator 105 needs to be significantly cooled. The specific value of the target return temperature can be set according to actual needs. For example, in this embodiment, the target return temperature can be set to 75°C.

[0128] The first temperature sensor 109 detects the outflow temperature of the cooling medium, and the second temperature sensor 110 detects the return temperature of the cooling medium. The difference between the two is recorded as a first temperature difference. When the first temperature difference exceeds the target temperature difference setting value, it indicates that the heat dissipation effect is poor and the first temperature difference needs to be adjusted. The specific value of the target temperature difference setting value can be set according to actual needs. For example, in this embodiment, the target temperature difference setting value can be set to 5°C to 8°C.

[0129] In operation S330 , when the plurality of operating parameters meet the evaluation criteria, at least one target parameter among the plurality of operating parameters is adjusted based on a preset rule to control the cooling medium to dissipate heat from the radiation source.

[0130] As an example, the preset rules are determined based on the adjustment priority of multiple operating parameters, the target noise of the cooling circuit, and at least one of the target energy consumption of the cooling circuit. The optimal heat dissipation effect is achieved by comprehensively considering the importance of different operating parameters and their impact on the performance of the heat dissipation system.

[0131] Adjusts pressure value based on preset rules. Figure 1 As shown, the pressure of the cooling medium is adjusted by adjusting the opening of the throttling element 114. For example, the opening of the throttling element 114 can be adjusted at a rate of 5% per second until the pressure of the cooling medium is less than or equal to the target pressure. As an example, the opening adjustment rate of the throttling element 114 can be set according to actual needs and is not limited here.

[0132] Adjust the flow value based on preset rules. Figure 6 As shown, the flow rate adjustment in this embodiment includes operations S510 to S520.

[0133] In operation S510, a flow deviation value between the flow value and the target flow value is obtained. actual The target flow value Q is obtained by real-time measurement of the flow sensor 113. set It is preset in the control unit 202.

[0134] In operation S520, the rotation speed of the variable frequency pump is adjusted based on the flow deviation value to adjust the flow value.

[0135] In some embodiments, the flow deviation value can be input into the speed adjustment algorithm to obtain the target speed of the variable frequency pump 104. This embodiment uses the PID algorithm (proportional-integral-differential control algorithm) as an example for explanation, and the adjustment formula is as follows:

[0136] = K p ( )+K i ∫( )dt +K d d( ) / dt (1)

[0137] Among them, K p is the proportional gain, K i is the integral gain, K d is the differential gain, and its specific value can be set according to actual needs. In this embodiment, K pCan be set to 2.0, K i Can be set to 0.05 / s, K d Can be set to 0.3s.

[0138] In some embodiments, a machine learning model may be used to predict the target speed of the variable frequency pump 104. For example, a dataset of flow deviation values and related variable frequency pump speeds can be collected in advance and used to train a machine learning model (such as a neural network model). For example, in an industrial production environment, sensors can be used to monitor pipeline flow and variable frequency pump speed in real time, and this data can be recorded to form a dataset. Experiments can also be conducted to measure flow deviation values and variable frequency pump speeds under different operating conditions.

[0139] In some embodiments, the interface of the simulation software can be called in real time to obtain the target speed of the variable frequency pump 104 through simulation. For example, a simulation model of a variable frequency pump system is established in the analysis and simulation software, and simulation analysis is performed after setting relevant parameters to obtain the target speed.

[0140] In some embodiments, the target speed of the variable frequency pump 104 can be obtained by using a table lookup method. Specifically, first, through experiments or theoretical calculations, different flow deviation values and corresponding variable frequency pump 104 speeds are collected. The collected data is organized into a table and stored in a database or file. When executing operation S520, the corresponding variable frequency pump 104 target speed is searched from the table based on the real-time monitored flow deviation value.

[0141] Get the target speed of the variable frequency pump 104 The variable frequency pump 104 is then controlled to operate based on its target speed so that the noise level of the variable frequency pump 104 is less than or equal to a first target noise level, and / or the energy consumption of the variable frequency pump 104 is less than or equal to a first target energy consumption. For example, the specific values of the first target noise level and the first target energy consumption can be set according to actual needs. By controlling the speed of the variable frequency pump 104 so that it does not need to continuously rotate at a specific speed, energy conservation and emission reduction can be achieved while also reducing noise generated by unnecessary continuous rapid rotation.

[0142] In addition, a dynamic limiting mechanism is used to limit the speed of the variable speed pump 104. Depending on different operating conditions, the speed of the variable speed pump 104 is limited to varying degrees. The specific limit is set based on the cooling medium flow rate and the target flow rate when the variable speed pump 104 is fully open. This prevents system overload and ensures that the system operates within a safe range.

[0143] In some embodiments, when the cooling medium pressure is less than or equal to the target pressure and greater than or equal to the warning pressure, it indicates that the cooling medium pressure is too high and the speed of the variable frequency pump 104 needs to be reduced. For example, when the pressure is between 2.8 bar and 3 bar, the speed limit of the variable frequency pump 104 is adjusted to 80% of its rated speed to meet the current operating requirements.

[0144] In some embodiments, when the return temperature is lower than the target return temperature and greater than or equal to the warning return temperature, it indicates that the return temperature of the cooling medium is too high and the speed of the variable frequency pump 104 needs to be reduced. For example, when the return temperature is between 70°C and 75°C, the upper speed limit of the variable frequency pump 104 is adjusted to 50% of its rated speed to meet the current operating requirements.

[0145] Adjust the reflow temperature based on preset rules. Figure 1 As shown, the return temperature is adjusted by adjusting the speed of the cooling fan 106. As an example, when the second temperature sensor 110 detects that the return temperature of the cooling medium meets the third evaluation criterion, the cooling fan 106 operates at its highest speed to quickly remove heat from the cooling medium until the return temperature is lower than the target return temperature.

[0146] Adjust the first temperature difference value based on the preset rule. Figure 7 As shown, the embodiment of adjusting the first temperature difference includes operations S610 to S620.

[0147] In operation S610 , a temperature deviation value between a first temperature difference value and a second temperature difference value is acquired.

[0148] First temperature difference The first temperature difference is the difference between the outflow temperature and the return temperature of the cooling medium. The first temperature sensor 109 detects the outflow temperature of the cooling medium, and the second temperature sensor 110 detects the return temperature of the cooling medium. The difference between the two is used to obtain the first temperature difference. .

[0149] The second temperature difference Set the target temperature difference Corrected value, such as Figure 8 As shown, the process of obtaining the second temperature difference in this embodiment includes operations S710 to S720.

[0150] In operation S710, the inlet air temperature feedback value T of the cooling fan is adjusted by the preset compensation coefficient K. in The difference between the inlet air temperature reference value Tin_base is used to obtain the correction factor K ( ), where the inlet air temperature feedback value T in The temperature is detected by the third temperature sensor 111 .

[0151] In operation S720, the target temperature difference setting value is adjusted based on the correction factor. Make corrections, referring to formula (2),

[0152] ΔTadjusted=ΔTset×(1+K ( )) (2)

[0153] Among them, the target temperature difference setting value , the reference temperature Tin_base, and the compensation coefficient K are pre-set in the control unit 202. The specific values can be set according to actual needs. In this embodiment, the reference temperature Tin_base is set to 25°C, and the compensation coefficient K is set to 0.05. When the inlet air temperature feedback value T in When a change occurs, the system will adjust the target temperature difference setting value in advance according to the change. , if the cooling fan inlet temperature feedback value T in If the deviation from the reference temperature Tin_base is large, the correction factor increases, thus adjusting the target temperature difference setting value. This compensation method can adjust the system's target temperature difference in advance, thereby improving the system's response speed and control accuracy.

[0154] In operation S620, the rotation speed of the heat dissipation fan is adjusted based on the temperature deviation value to adjust the first temperature difference value.

[0155] In some embodiments, the temperature deviation value can be input into the speed adjustment algorithm to obtain the target speed of the cooling fan 106. This embodiment uses the PID algorithm (proportional-integral-differential control algorithm) as an example for explanation, and the adjustment formula is as follows:

[0156] =K p +K i dt+K d d / dt (3)

[0157] Among them, K p is the proportional gain, K i is the integral gain, K d is the differential gain, and its specific value can be set according to actual needs. In this embodiment, K p Can be set to 1.5, K i Can be set to 0.02 / s, K d Can be set to 0.2s.

[0158] In some embodiments, a machine learning model may be used to predict the target speed of the cooling fan 106. For example, a data set of temperature deviation values and related cooling fan speeds can be collected in advance and used to train a machine learning model (such as a neural network model). For example, in an industrial production environment, sensors can be used to monitor pipe temperature, air inlet temperature, and cooling fan speed in real time, and this data can be recorded to form a data set. Experiments can also be conducted to measure temperature deviation values and cooling fan speeds under different operating conditions.

[0159] In some embodiments, the interface of the simulation software can be called in real time to obtain the target speed of the cooling fan 106 through simulation. For example, a simulation model of the cooling fan system is established in the analysis and simulation software, and simulation analysis is performed after setting relevant parameters to obtain the target speed.

[0160] In some embodiments, the target speed of the cooling fan 106 can be obtained by using a table lookup method. Specifically, first, through experiments or theoretical calculations, different temperature deviation values and corresponding speeds of the cooling fan 106 are collected. The collected data is organized into a table and stored in a database or file. When executing operation S620, the corresponding target speed of the cooling fan 106 is searched from the table based on the temperature deviation value monitored in real time.

[0161] Get the target speed of the cooling fan 106 Then, cooling fan 106 is controlled to operate based on its target speed so that the noise level of cooling fan 106 is less than or equal to a second target noise level, and / or the energy consumption of cooling fan 106 is less than or equal to a second target energy consumption. For example, the specific values of the second target noise level and the second target energy consumption can be set according to actual needs. By controlling the speed of cooling fan 106 so that it does not need to rotate continuously at a specific speed, energy conservation and emission reduction can be achieved while also reducing noise generated by unnecessary continuous rapid rotation.

[0162] In some embodiments, if the inlet air temperature feedback value T in If the target speed of the cooling fan 106 is greater than or equal to the first warning air inlet temperature, Then, the cooling fan 106 is controlled to rotate at its target speed. m times of running, where m is greater than 1 and m Less than or equal to the maximum speed of the cooling fan 106 to obtain a good cooling effect. For example, the first warning air inlet temperature is set to 35°C. If the air inlet temperature feedback value T in If the temperature is greater than or equal to 35°C, the cooling fan 106 is controlled at 1.2 Run at a speed of 100 rpm.

[0163] In some embodiments, if the inlet air temperature feedback value T in If the second warning air inlet temperature is greater than or equal to the second warning air inlet temperature, the cooling fan 106 is controlled to run at its highest speed to obtain a good cooling effect. For example, if the second warning air inlet temperature is set to 40°C, if the air inlet temperature feedback value T in If the temperature is greater than or equal to 40° C., the cooling fan 106 is controlled to run at its highest speed.

[0164] As an example, there is at least one cooling fan 106 , and adjusting the speed of cooling fan 106 includes controlling each of the plurality of cooling fans 106 to operate based on a corresponding target speed. The target speeds of the plurality of cooling fans 106 can be the same or different. In some embodiments, cooling fans 106 of different specifications, such as cooling fans 106 of different sizes, can be provided to provide the plurality of cooling fans 106 with different target speeds. When controlling the plurality of cooling fans 106 , the control unit can control the plurality of cooling fans 106 synchronously or individually, but the present invention is not limited thereto.

[0165] Figure 9 A flowchart for adjusting multiple operating parameters according to an embodiment of the present application is schematically shown.

[0166] First, the radiation source heat dissipation system is turned on, and the target state of the cooling circuit is set in the control unit 202, such as the target flow value, target pressure value, target return temperature, and target temperature difference setting value.

[0167] Next, multiple operating parameters in the cooling circuit are monitored in real time and adjusted according to adjustment priorities. In this embodiment, the adjustment priorities of the multiple operating parameters are liquid level, pressure, flow, return temperature, and first temperature difference.

[0168] When the cooling medium capacity in the storage device 101 is insufficient, air is easily mixed into the cooling medium delivered to the radiation source 201, and the air forms bubbles in the cooling medium. When the cooling medium carrying bubbles flows to the radiation source 201 for heat exchange, the cooling medium has poor insulation due to the bubbles. The current generated during the operation of the radiation source 201 breaks down the cooling medium with bubbles, causing damage to other components or short-circuiting the radiation source. Therefore, it is necessary to adjust the liquid level as the highest priority. Figure 9As shown, when the liquid level is detected to be lower than the height of the first liquid level sensor, it indicates that the cooling medium capacity is seriously insufficient. To ensure system safety, it is necessary to first shut down the X-ray source and promptly replenish the cooling medium to at least the height of the first liquid level sensor. When the liquid level is detected to be higher than the height of the first liquid level sensor but lower than the height of the second liquid level sensor, the X-ray source can operate normally, and the cooling medium needs to be replenished.

[0169] In order to further ensure the safe operation of the cooling system, the pipeline pressure value needs to be adjusted. Specifically, by adjusting the opening of the throttling element, the pressure value is made less than or equal to the target pressure value to ensure that the pressure value of the cooling circuit is within a safe range.

[0170] According to the importance of the influence on the heat dissipation effect, the flow value, the return temperature, and the first temperature difference value are adjusted in sequence, so that the optimal heat dissipation effect can be obtained in a shorter time.

[0171] During the process of cooling the radiation source, the aforementioned multiple operating parameters are cyclically monitored and adjusted until the radiation source is shut down or the radiation source cooling system receives a new operating instruction. This ensures that the cooling circuit maintains the target state during operation and that the cooling system operates stably, thereby achieving a good heat dissipation effect. In other optional embodiments, the adjustment priority of the multiple operating parameters can be in other orders, which are not limited here.

[0172] In the radiation source heat dissipation method provided in this embodiment, the aforementioned multiple operating parameters are displayed via a human-machine interface (HMI), and at least one target parameter is adjusted in response to a user's manipulation of the HMI. The HMI not only monitors the operating status of the heat dissipation system but also enables real-time adjustment of operating parameters, greatly enhancing operational convenience.

[0173] The embodiments of the present disclosure are described above. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Although each embodiment has been described separately above, this does not mean that the measures in each embodiment cannot be used in combination to advantage. The scope of the present disclosure is defined by the appended claims and their equivalents. Without departing from the scope of the present disclosure, those skilled in the art may make various substitutions and modifications, which should all fall within the scope of the present disclosure.

Claims

1. A radiation source heat dissipation method, characterized in that: include: In response to a cooling medium in a cooling circuit dissipating heat to a radiation source, obtaining a plurality of operating parameters of the cooling circuit, wherein the plurality of operating parameters are related to a heat dissipation effect of the cooling medium on the radiation source; evaluating the plurality of operating condition parameters; When the multiple operating parameters meet the evaluation criteria, adjusting at least one target parameter among the multiple operating parameters based on a preset rule to control the cooling medium to dissipate heat from the radiation source; The preset rule is determined according to at least one of the adjustment priorities of the plurality of operating parameters, the target noise of the cooling circuit, and the target energy consumption of the cooling circuit.

2. The radiation source heat dissipation method according to claim 1, characterized in that: Adjusting at least one target parameter among the plurality of operating parameters based on a preset rule includes: adjusting the at least one target parameter based on the order of the adjustment priorities so that the cooling circuit has a target state; The target state includes that the noise of the cooling circuit is less than or equal to a target noise, and / or the energy consumption of the cooling circuit is less than or equal to a target energy consumption.

3. The radiation source heat dissipation method according to claim 1, characterized in that: The plurality of operating parameters include a liquid level of a cooling medium in a storage unit of the cooling circuit, and the method further includes: When the liquid level is less than or equal to the target height, a prompt message is issued; According to the feedback of the prompt information, the opening and closing of the radiation source are controlled.

4. The radiation source heat dissipation method according to claim 3, characterized in that: Evaluating the plurality of operating parameters includes at least one of the following: evaluating a pressure value of a cooling medium in a pipeline of the cooling circuit, and adjusting the pressure value when the pressure value meets a first evaluation criterion, wherein the first evaluation criterion includes the pressure value being greater than a target pressure value; evaluating a flow rate of a cooling medium in a pipeline of the cooling circuit, and adjusting the flow rate when the flow rate meets a second evaluation criterion, wherein the second evaluation criterion includes that the flow rate is less than a target flow rate; evaluating a return temperature of the cooling medium in the pipeline of the cooling circuit, and adjusting the return temperature when the return temperature meets a third evaluation criterion, wherein the third evaluation criterion includes that the return temperature is greater than or equal to a target return temperature; A first temperature difference value of the cooling medium in the pipeline of the cooling circuit is evaluated, where the first temperature difference value is the difference between the outflow temperature and the return temperature of the cooling medium. When the first temperature difference value exceeds a target temperature difference setting value, the first temperature difference value is adjusted.

5. The radiation source heat dissipation method according to claim 4, characterized in that: The adjustment priorities of the multiple operating parameters are the liquid level height, the pressure value, the flow value, the reflux temperature, and the first temperature difference value.

6. The radiation source heat dissipation method according to claim 4, characterized in that: The pressure value is adjusted by adjusting the opening of a throttling element provided on the pipeline of the cooling circuit.

7. The radiation source heat dissipation method according to claim 4, characterized in that: Adjusting the flow value includes: Obtaining a flow rate deviation value between the flow rate value and the target flow rate value; The speed of the variable frequency pump is adjusted based on the flow deviation value to adjust the flow value.

8. The radiation source heat dissipation method according to claim 7, characterized in that: Adjusting the speed of the variable frequency pump based on the flow deviation value includes: Inputting the flow deviation value into a speed adjustment algorithm to obtain a target speed of the variable frequency pump; The variable frequency pump is controlled to operate based on its target speed so that noise of the variable frequency pump is less than or equal to a first target noise, and / or energy consumption of the variable frequency pump is less than or equal to a first target energy consumption.

9. The radiation source heat dissipation method according to claim 4, characterized in that: The reflux temperature is adjusted by adjusting the rotation speed of the heat dissipation fan.

10. The radiation source heat dissipation method according to claim 4, characterized in that: Adjusting the first temperature difference includes: Obtaining a temperature deviation value between the first temperature difference value and the second temperature difference value; adjusting the rotation speed of the cooling fan based on the temperature deviation value to adjust the first temperature difference value; The second temperature difference value is a correction value of the target temperature difference setting value, and the second temperature difference value is related to the inlet air temperature of the heat dissipation fan.

11. The radiation source heat dissipation method according to claim 10, characterized in that: Obtaining the second temperature difference value includes: The difference between the inlet air temperature feedback value and the inlet air temperature reference value of the heat dissipation fan is adjusted by a preset compensation coefficient to obtain a correction factor; The target temperature difference setting value is corrected based on the correction factor.

12. The radiation source heat dissipation method according to claim 10, characterized in that: Adjusting the speed of the cooling fan based on the temperature deviation value includes: Inputting the temperature deviation value into a temperature adjustment algorithm to obtain a target speed of the cooling fan; The heat dissipation fan is controlled to operate based on its target speed so that the noise of the heat dissipation fan is less than or equal to a second target noise, and / or the energy consumption of the heat dissipation fan is less than or equal to a second target energy consumption.

13. The radiation source heat dissipation method according to claim 12, characterized in that: The number of the heat dissipation fan is at least one, and adjusting the rotation speed of the heat dissipation fan includes: controlling the plurality of heat dissipation fans to operate based on corresponding target rotation speeds respectively.

14. The radiation source heat dissipation method according to claim 1, characterized in that: The method further comprises: Displaying multiple operating parameters of the cooling circuit through a human-machine interface; and In response to a user's operation on the at least one target parameter on the human-machine interface, the at least one target parameter is adjusted.

15. A radiation source heat dissipation system, characterized in that: The radiation source heat dissipation system is used to perform the heat dissipation method according to any one of claims 1 to 14, comprising: a thermal management unit, configured to provide the cooling medium to dissipate heat from the radiation source; A detection unit, used to obtain multiple operating parameters of the cooling circuit; A control unit is connected to the thermal management unit and the detection unit, and is used to evaluate the multiple operating parameters and adjust at least one target parameter among the multiple operating parameters based on preset rules to control the cooling medium to dissipate heat from the radiation source.

16. The radiation source heat dissipation system according to claim 15, characterized in that: The thermal management unit comprises: A storage device for storing the cooling medium; an outflow pipeline, connected to the storage device, defining a delivery channel for the cooling medium to flow into the radiation source; a return line, connected to the storage device, defining a delivery channel for the cooling medium after it flows out of the radiation source; A variable frequency pump, used for drawing the cooling medium from the storage device and delivering it into the outflow pipeline; The storage device, the variable frequency pump, the outflow pipeline, the ray source and the return pipeline constitute a circulating flow loop of the cooling medium.

17. The radiation source heat dissipation system according to claim 16, characterized in that: The thermal management unit further includes a radiator and at least one heat dissipation fan. The radiator is in communication with the outflow pipeline. The heat dissipation fan is used to dissipate heat from the cooling medium entering the radiator.

18. The radiation source heat dissipation system according to claim 17, characterized in that: The storage device is provided with a first liquid level sensor and a second liquid level sensor, wherein the height of the first liquid level sensor is lower than that of the second liquid level sensor, wherein the first liquid level sensor is used to detect a safe liquid level, and the second liquid level sensor is used to detect a replenishing liquid level.

19. The radiation source heat dissipation system according to claim 17, characterized in that: The detection unit comprises: a first temperature sensor, disposed on the outflow pipeline, for detecting the outflow temperature of the cooling medium; a second temperature sensor, disposed on the return line, for detecting the return temperature of the cooling medium; The third temperature sensor is used to detect the inlet air temperature of the heat dissipation fan.

20. The radiation source heat dissipation system according to claim 16, characterized in that: The detection unit further includes: A pressure sensor, used to detect the pressure value of the circulating flow loop of the cooling medium; The flow sensor is used to detect the flow value of the circulating flow loop of the cooling medium.

21. The radiation source heat dissipation system according to claim 15, characterized in that: The system further includes a human-machine interface, which is communicatively connected to the control unit and is used to display multiple operating parameters of the cooling circuit and adjust at least one target parameter among the multiple operating parameters.

22. The radiation source heat dissipation system according to claim 15, characterized in that: A circuit breaker is provided at the power supply input end of the heat dissipation system, and the circuit breaker is used to disconnect and isolate the power supply of the heat dissipation system and to provide overcurrent protection for the heat dissipation system.

23. The radiation source heat dissipation system according to claim 15, characterized in that: A filter is provided at the power supply input end of the heat dissipation system, and the filter is used to reduce electromagnetic interference generated by the thermal management unit during operation.

24. The radiation source heat dissipation system according to claim 15, characterized in that: The control unit and the thermal management unit perform signal transmission and control instruction interaction via a hard-wired connection and / or a communication connection.

Images