Method for reducing air inlet area of radiator and double-source CT machine

Abstract

The invention provides a method for reducing the air inlet area of a radiator. The radiator is used for a bulb tube, in a non-working state or a low-power working state, of the double-source CT machine, and the radiator is provided with a first air inlet area. The method for reducing the air inlet area of the radiator comprises the following steps that the cooling oil inlet temperature Tin and the cooling oil outlet temperature Tout of the radiator are obtained; according to the temperature of each part of the double-source CT machine, the minimum fan rotating speed Rfan is obtained; according to the cooling oil inlet temperature Tin, the cooling oil outlet temperature Tout and the minimum fan rotating speed Rfan, a second air inlet area capable of enabling the radiator to dissipate heat stably is calculated; and according to the obtained second air inlet area, covering a part of the air inlet to reduce the air inlet area of the radiator from the first air inlet area to the second air inlet area. The invention further provides the double-source CT machine capable of achieving the method.

Description

Technical Field

[0001] The present invention relates to a method for reducing the air intake area of ​​a radiator, and also relates to a dual-source CT machine capable of implementing the method. Background Art

[0002] A dual source CT machine is a device that simultaneously collects images of the human body through two sets of X-ray tube systems and two sets of detector systems. Each set of X-ray tube systems is equipped with a radiator for dissipating heat from the tube. The radiator has a fixed air inlet area. The fan of the dual source CT machine outputs cold air to the two radiators at the same time. The cold air enters the radiator through the air inlet of the radiator to cool the cooling oil in the radiator, and the heat generated by the tube is taken away through the circulation of the cooling oil.

[0003] When one of the X-ray tube systems in the dual-source CT machine is not in operation or is in a low-power state, it is in a low heat dissipation state, while the other tube in a normal working state is in a high heat dissipation state. The actual amount of cold air required by the tube in the low heat dissipation state is less than the amount of cold air entering from the air inlet of its radiator, resulting in a waste of cold air. Excessively high fan speed also causes high noise and power waste to the dual-source CT machine. Summary of the invention

[0004] The object of the present invention is to provide a method for reducing the air intake area of ​​a radiator, which can reduce the waste of cold air, reduce energy consumption and reduce noise.

[0005] Another object of the present invention is to provide a dual-source CT machine, which can reduce cold air waste, reduce energy consumption and reduce noise by reducing the air intake area of ​​the radiator.

[0006] The present invention provides a method for reducing the air intake area of ​​a radiator. The radiator is used for a tube of a dual-source CT machine that is in a non-working state or in a low-power working state, and has a first air intake area. The method for reducing the air intake area of ​​the radiator includes: obtaining a cooling oil inlet temperature T of the radiator in and cooling oil outlet temperature T out ;According to the temperature of each component of the dual-source CT machine, obtain the minimum fan speed R fan ; According to the cooling oil inlet temperature T in , Cooling oil outlet temperature T out and minimum fan speed R fan , calculating a second air intake area that enables the radiator to dissipate heat stably; and based on the obtained second air intake area, covering a portion of the air intake port to reduce the air intake area of ​​the radiator from the first air intake area to the second air intake area.

[0007] The method for reducing the air intake area of ​​the radiator provided by the present invention obtains a second air intake area that can enable the radiator to dissipate heat stably through calculation, and reduces the air intake area of ​​the radiator from the first air intake area to the second air intake area, thereby reducing cold air waste, reducing energy consumption and reducing noise.

[0008] In an exemplary embodiment of the method for reducing the air intake area of ​​the radiator, the steps are: obtaining the minimum fan speed R according to the temperature of each component of the dual-source CT machine; fan , including: obtaining the temperature of each component of the dual-source CT machine; obtaining the fan speed required by each component according to the temperature of each component; and selecting the maximum fan speed as the minimum fan speed R according to the fan speed required by each component. fan This ensures that all components of the dual-source CT machine can be effectively cooled.

[0009] In an exemplary embodiment of the method for reducing the air intake area of ​​the radiator, the steps are: according to the cooling oil inlet temperature T in , Cooling oil outlet temperature T out and minimum fan speed R fan Calculate a second air intake area of ​​the radiator, and calculate the second air intake area according to the following formula: S2 = (T out -T in )*R fan *C; S2 is the second air inlet area of ​​the radiator, T out is the cooling oil outlet temperature, T in is the cooling oil inlet temperature, R fan is the minimum fan speed, and C is the distribution coefficient. This makes it easy to effectively and accurately calculate the air intake area of ​​the radiator, thereby ensuring that the bulbs in non-working or low-power states are effectively cooled while reducing energy waste.

[0010] In an exemplary embodiment of the method for reducing the air intake area of ​​the radiator, the steps are: according to the obtained second air intake area, a part of the air intake port is covered to reduce the air intake area of ​​the radiator from the first air intake area to the second air intake area, specifically: an air intake regulating device is provided, the air intake regulating device includes a first substrate, the first substrate is provided with at least one first opening, the sum of the areas of the at least one first opening is equal to the second air intake area, and the first substrate is covered at the air intake port of the radiator to reduce the air intake area of ​​the radiator from the first air intake area to the second air intake area. In this way, the air intake area of ​​the radiator can be conveniently reduced, and at the same time, it is beneficial for the cold air to enter the radiator evenly through the air intake port.

[0011] In an exemplary embodiment of the method for reducing the air intake area of ​​the radiator, the steps are: according to the obtained second air intake area, covering a part of the air intake port to reduce the air intake area of ​​the radiator from the first air intake area to the second air intake area, including: setting an air intake adjustment device, the air intake adjustment device includes a second substrate and a movable plate, the second substrate is provided with at least one second opening, the sum of the areas of the at least one second opening is greater than or equal to the second air intake area, covering the air intake port of the radiator with the second substrate, so that the air intake area of ​​the radiator is reduced from the first air intake area to the sum of the areas of the at least one second opening; setting a movable plate on one side of the second substrate, the movable plate can be kept close to the second substrate and move relative to the second substrate; and moving the movable plate to partially cover at least one second opening, so that the air intake area of ​​the radiator is reduced from the first air intake area to the second air intake area. By setting the movable plate on one side of the second substrate, the air intake area of ​​the radiator can be adjusted by moving the movable plate, and the method is simple and easy.

[0012] In an exemplary embodiment of the method for reducing the air intake area of ​​the radiator, the movable plate is provided with at least one third opening, and the movable plate is moved so that each second opening partially overlaps with a third opening, so that the air intake area of ​​the radiator is reduced from the first air intake area to the second air intake area. By providing the third opening on the movable plate, the cold air is evenly distributed, thereby facilitating the heat dissipation of the bulb.

[0013] In an exemplary embodiment of the method for reducing the air intake area of ​​the radiator, the air intake regulating device further includes a moving control module and a driving module, and the steps include: moving the moving plate to partially cover at least one second opening, so that the air intake area of ​​the radiator is reduced from the first air intake area to the second air intake area, including: the moving control module calculates a displacement data according to the second air intake area, and sends a moving plate displacement control signal containing the displacement data to the driving module; and the driving module drives the moving plate to move relative to the second substrate according to the moving plate displacement control signal. In this way, the automatic process of reducing the air intake area of ​​the radiator is realized, which is conducive to saving labor costs and achieving precise control.

[0014] The present invention also provides a dual-source CT machine, including an air intake regulating device. The air intake regulating device is used to reduce the air intake area of ​​a radiator from a first air intake area to a second air intake area. The radiator is used for a tube of the dual-source CT machine that is in a non-working state or in a low-power working state. The air intake regulating device includes a first substrate with at least one first opening. The sum of the areas of the at least one first opening is equal to the second air intake area. When the first substrate covers the air intake of the radiator, the air intake area of ​​the radiator is reduced from the first air intake area to the second air intake area.

[0015] The dual-source CT machine also provided by the present invention obtains a second air intake area that enables the radiator to dissipate heat stably through calculation, and reduces the air intake area of ​​the radiator from the first air intake area to the second air intake area, thereby reducing cold air waste, energy consumption and noise.

[0016] The present invention also provides a dual-source CT machine, including an air intake regulating device. The air intake regulating device is used to reduce the air intake area of ​​a radiator from a first air intake area to a second air intake area. The radiator is used for a tube of the dual-source CT machine that is in a non-working state or in a low-power working state. The air intake regulating device includes a second substrate with at least one second opening and a movable plate. The sum of the areas of the at least one second opening is greater than or equal to the second air intake area. When the second substrate covers the air intake of the radiator, the air intake area of ​​the radiator is reduced from the first air intake area to the sum of the areas of the at least one second opening. The movable plate is arranged on one side of the second substrate and can remain close to the second substrate and move relative to the second substrate to partially cover the at least one second opening, so that the air intake area of ​​the radiator is reduced from the first air intake area to the second air intake area. This facilitates the adjustment of the air intake area of ​​the radiator by moving the movable plate, and the structure is simple and easy.

[0017] In an exemplary embodiment of the dual-source CT machine, the movable plate is provided with at least one third opening, and the movable plate is moved so that each second opening partially overlaps with a third opening, so that the air intake area of ​​the radiator is reduced from the first air intake area to the second air intake area, thereby facilitating uniform distribution of cold air and heat dissipation of the tube.

[0018] In an exemplary embodiment of the dual-source CT machine, the air intake regulating device further includes: a mobile control module and a driving module. The mobile control module calculates a displacement data according to the second air intake area, and sends a mobile plate displacement control signal containing the displacement data. The driving module receives the mobile plate displacement control signal sent by the mobile control module and drives the mobile plate to move relative to the second substrate. In this way, an automated process of reducing the air intake area of ​​the radiator is realized, which is conducive to saving labor costs and achieving precise control. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following drawings are only used to schematically illustrate and explain the present invention, and do not limit the scope of the present invention.

[0020] Figure 1 The present invention is a flow chart diagram for explaining an exemplary embodiment of a method for reducing an air intake area of ​​a radiator.

[0021] Figure 2 The diagram is a partial flow chart for explaining an exemplary embodiment of a method for reducing an air intake area of ​​a radiator.

[0022] Figure 3 The figure is a diagram for explaining an implementation example of a method for reducing the air intake area of ​​a radiator.

[0023] Figure 4 The diagram is a partial flow chart for explaining an exemplary embodiment of a method for reducing an air intake area of ​​a radiator.

[0024] Figure 5 Another exemplary diagram for illustrating a method for reducing an air intake area of ​​a heat sink before the movable plate covers the second substrate.

[0025] Figure 6 Another exemplary diagram for illustrating a method for reducing an air intake area of ​​a heat sink after the movable plate covers the second substrate.

[0026] Description of symbols

[0027] 10First substrate

[0028] 11 First Opening

[0029] 20 Second substrate

[0030] 21 Second opening

[0031] 30 mobile boards

[0032] 31 The third opening

[0033] 40 mobile control module

[0034] 50 driver modules

[0035] 60 Radiator

[0036] 61 Air Inlet DETAILED DESCRIPTION

[0037] In order to have a clearer understanding of the technical features, purposes and effects of the invention, the specific embodiments of the present invention are now described with reference to the accompanying drawings. The same reference numerals in the drawings represent components with the same structure or similar structures but the same functions.

[0038] In this document, “exemplary” means “serving as an example, instance or illustration”, and any diagram or implementation described in this document as “exemplary” should not be interpreted as a more preferred or more advantageous technical solution.

[0039] In this article, "first", "second", etc. do not indicate their importance or order, but are only used to indicate the difference between each other for the convenience of document description.

[0040] In order to simplify the drawings, each figure only schematically shows the parts related to the present invention, which do not represent the actual structure of the product.

[0041] Usually when a dual-source CT machine is working, one tube (hereinafter referred to as tube A) is in a normal working state, while the other tube (hereinafter referred to as tube B) is in a non-working state or in a low-power state. Both tubes A and B dissipate heat outward, and the difference in heat dissipation between tubes A and B goes through a process from continuous fluctuation to gradual stability. Cooling oil circulates in the radiators of tubes A and B, and the cooling oil exchanges heat with the tubes. The cold air entering through the air inlet of the radiator cools the cooling oil. For the radiator of tube B, its air inlet has a first air inlet area, which is the area of ​​the cross section of the air inlet perpendicular to the direction in which the cold air enters. Figure 3 , Figure 5 and Figure 6 The area enclosed by the dotted frame in is the first air intake area.

[0042] Figure 1 The present invention is a flow chart diagram for explaining an exemplary embodiment of a method for reducing an air intake area of ​​a radiator.

[0043] Figure 2 The diagram is a partial flow chart for explaining an exemplary embodiment of a method for reducing an air intake area of ​​a radiator.

[0044] Figure 3 FIG. 1 is a diagram for explaining an implementation example of a method for reducing the air intake area of ​​a radiator. Figure 1 , Figure 2 and Figure 3 In an exemplary embodiment, the method of reducing the air intake area of ​​the radiator comprises the following steps:

[0045] S10: Get the cooling oil inlet temperature T of the radiator in and cooling oil outlet temperature T out . Cooling oil inlet temperature T in and cooling oil outlet temperature T out The information can be obtained through sensors disposed at the cooling oil inlet and the cooling oil outlet of the radiator, or through other methods.

[0046] S20: Obtain the minimum fan speed R according to the temperature of each component of the dual-source CT machine fan See also Figure 2 In an exemplary embodiment, the minimum fan speed R is obtained. fan The methods include:

[0047] S21: Acquire the temperature of each component of the dual-source CT machine. The components of the dual-source CT machine include two tubes, two detectors, and other electrical and physical devices. The temperature of each component can be acquired through sensors installed at each component.

[0048] S22: Obtain the fan speed required by each component according to the temperature of each component. According to the temperature of each component, a PID controller arranged at each component calculates the fan speed required by the component.

[0049] S23: According to the fan speed required by each component, select the maximum fan speed as the minimum fan speed R fan Each PID controller communicates with a maximum selector, which selects the maximum fan speed from the fan speeds required by each component as the minimum fan speed R fan By determining the minimum fan speed R fan , ensuring that all components of the dual-source CT machine can be effectively cooled.

[0050] S30: According to the cooling oil inlet temperature T in , Cooling oil outlet temperature T out and minimum fan speed R fan , calculate the second air intake area that enables the radiator to dissipate heat stably. In an exemplary embodiment, the second air intake area is calculated according to the following formula:

[0051] S2=(T out -T in )*R fan *C;

[0052] Where S2 is the second air inlet area of ​​the radiator, T out is the cooling oil outlet temperature, T in is the cooling oil inlet temperature, R fan is the minimum fan speed, and C is the distribution coefficient. The distribution coefficient is a coefficient related to the structure of the dual-source CT machine, and is an empirical value determined by the relationship between the actual fan speed and the cold air volume required for heat dissipation by the radiator. In a specific exemplary embodiment, in the stable working state of the dual-source CT machine, that is, the heat dissipation difference between tube A and tube B has stabilized, for the radiator of tube B, its (T out -T in ) is 16℃, according to the output values ​​of each PID controller, the minimum fan speed R fan The speed is set to 1500 rpm and the distribution coefficient C is 1. According to the above formula, the second air intake area is calculated to be 24000 mm 2 This makes it easier to effectively and accurately calculate the second air intake area of ​​the radiator, thereby ensuring that the B-bulb tube is effectively cooled while reducing energy waste.

[0053] S40: According to the obtained second air intake area, a portion of the air intake port is covered to reduce the air intake area of ​​the radiator from the first air intake area to the second air intake area.

[0054] The method for reducing the air intake area of ​​the radiator provided by the present invention can reduce the waste of cold air, reduce energy consumption and reduce noise by calculating the second air intake area that can enable the radiator to dissipate heat stably and reducing the air intake area of ​​the radiator from the first air intake area to the second air intake area.

[0055] In an exemplary embodiment, see Figure 3 , step S40 is specifically as follows: an air intake regulating device is provided, the air intake regulating device includes a first substrate, the first substrate is provided with three first openings, the sum of the areas of the three first openings is equal to the second air intake area, the first substrate completely covers the air intake port, and the cold air enters the radiator only from the three first openings provided on the first substrate, so that the air intake area of ​​the radiator is reduced from the first air intake area to the second air intake area. In this way, the air intake area of ​​the radiator can be conveniently reduced to the second air intake area, and at the same time, it is beneficial for the cold air to enter the radiator uniformly through the air intake port. In other exemplary embodiments, the number of the first openings can be other numbers. Other methods can also be used to cover a portion of the air intake port to reduce the air intake area of ​​the radiator from the first air intake area to the second air intake area, such as using a first substrate without an opening to partially cover the air intake port.

[0056] Figure 4 The diagram is a partial flow chart for explaining an exemplary embodiment of a method for reducing an air intake area of ​​a radiator. Figure 5 Another exemplary diagram for illustrating a method for reducing an air intake area of ​​a heat sink before the movable plate covers the second substrate. Figure 6 Another exemplary embodiment of the method for reducing the air intake area of ​​the heat sink is shown in FIG. Figure 4 , Figure 5 and Figure 6 In an exemplary embodiment, step S40 includes:

[0057] S41: An air intake regulating device is set up, which includes a second substrate and a movable plate. The second substrate is provided with three second openings, and the sum of the areas of the three second openings is greater than or equal to the second air intake area. The air intake of the radiator is completely covered by the second substrate, and cold air enters the radiator only from the three second openings provided on the second substrate, so that the air intake area of ​​the radiator is reduced from the first air intake area to the sum of the areas of the three second openings.

[0058] S42: a movable plate is arranged on one side of the second substrate, the movable plate can be kept close to the second substrate and move relative to the second substrate. A movable plate is arranged on one side of the second substrate, three third openings are opened on the movable plate, and the movable plate can move relative to the second substrate along an arrangement direction parallel to the three third openings.

[0059] S43: moving the movable plate so that the three third openings partially overlap with the three second openings, so that the air intake area of ​​the radiator is reduced from the first air intake area to the second air intake area.

[0060] By arranging a movable plate on one side of the second substrate, the air intake area of ​​the radiator can be adjusted by moving the movable plate, and the method is simple and easy. In other exemplary embodiments, the number of the second opening and the third opening can be other non-zero numbers. The moving direction of the movable plate can also be other directions.

[0061] It should be noted that in the initial stage of the dual-source CT machine, tube A works normally, tube B does not work or is in a low-power state. At this time, the heat dissipation of tube A is greater than that of tube B, and the fan speed required by tube A is determined as the minimum fan speed R fan , the second air intake area is calculated by the above formula. After the A bulb is cooled, the heat dissipation gradually decreases, and the cooling oil inlet temperature T in , Cooling oil outlet temperature T out and minimum fan speed R fan The second air intake area changes accordingly. Therefore, during the entire operation of the dual-source CT machine, the second air intake area changes with the change in the heat dissipation difference between tube A and tube B. It can be observed from the outside that the movable plate 30 continuously reduces or increases its displacement to adapt to the continuously changing second air intake area.

[0062] However, as the dual-source CT machine works further, the heat dissipation difference between tube A and tube B gradually stabilizes, and the cooling oil inlet temperature T in , Cooling oil outlet temperature T out and minimum fan speed R fan The second air intake area also tends to be stable. It can be observed from the outside that the moving plate 30 finally stays at a certain displacement.

[0063] In an exemplary embodiment, see Figure 4 , Figure 5 and Figure 6 The air intake regulating device further includes a movement control module and a driving module, and step S43 includes:

[0064] S431: The mobile control module calculates a displacement data according to the second air intake area, and sends a mobile plate displacement control signal containing the displacement data to the driving module. The displacement data is calculated by the mobile control module according to the difference between the first air intake area and the second air intake area, and the geometric information between the second substrate and the mobile plate. The mobile control module can be various processing devices well known to those skilled in the art.

[0065] S432: The driving module drives the moving plate to move relative to the second substrate according to the moving plate displacement control signal. Figure 5 and Figure 6 , the movable plate is located on one side of the second substrate. Under the drive of the driving module, the movable plate moves to cover one side of the second substrate and is close to the second substrate, so that the three third openings overlap with the three second openings respectively, so that the areas of the three second openings are partially covered by the movable plate. By accurately controlling the displacement data of the movable plate, the sum of the overlapping areas of the three second openings is equal to the second air intake area, so that the air intake area of ​​the radiator is reduced from the first air intake area to the second air intake area. In this way, the automated process of reducing the air intake area of ​​the radiator is realized, which is conducive to saving labor costs and realizing precise control. The driving module can be various driving mechanisms well known to those skilled in the art.

[0066] The present invention also provides a dual-source CT machine, comprising an air intake regulating device. The air intake regulating device is used to reduce the air intake area of ​​the radiator 60 from a first air intake area to a second air intake area. The radiator 60 is used for the B tube of the dual-source CT machine. Figure 3 As shown, the air intake regulating device includes a first substrate 10 having three first openings 11. The sum of the areas of the three first openings 11 is equal to the second air intake area. When the first substrate 10 covers the air intake port 61 of the radiator 60, cold air enters the radiator 60 through the air intake port 61 from the three first openings 11, and the air intake area of ​​the radiator 60 is reduced from the first air intake area to the second air intake area. In other exemplary embodiments, the number of the first openings 11 can be other numbers or zero. If the number of the first openings 11 is zero, the first substrate 10 partially covers the air intake port 61, so that the air intake area is reduced to the second air intake area.

[0067] The dual-source CT machine provided by the present invention obtains the second air intake area that enables the radiator 60 to dissipate heat stably through calculation, and reduces the air intake area of ​​the radiator 60 from the first air intake area to the second air intake area, thereby reducing cold air waste, energy consumption and noise.

[0068] In an exemplary embodiment, Figure 5 and Figure 6As shown, the dual-source CT machine includes an air intake regulating device. The air intake regulating device includes a second substrate 20 with three second openings 21 and a movable plate 30. The sum of the areas of the three second openings 21 of the second substrate 20 is greater than or equal to the second air intake area. When the second substrate 20 covers the air intake port 61 of the radiator 60, the air intake area of ​​the radiator 60 is reduced from the first air intake area to the sum of the areas of the three second openings 21. The movable plate 30 is provided with three third openings 31, and the movable plate 30 is arranged on one side of the second substrate 20 and can be kept close to the second substrate 20 and move relative to the second substrate 20, so that each second opening 21 partially overlaps with a third opening 31, thereby reducing the air intake area of ​​the radiator 60 from the first air intake area to the second air intake area. In this way, it is convenient to adjust the air intake area of ​​the radiator 60 by moving the movable plate 30, which is beneficial to the uniform distribution of cold air, thereby facilitating the heat dissipation of the tube, and the structure is simple and easy. In other exemplary embodiments, the number of the second openings 21 and the number of the third openings 31 may be other non-zero numbers.

[0069] In an exemplary embodiment, Figure 5 and Figure 6 As shown, the air intake regulating device also includes a mobile control module 40 and a driving module 50. The mobile control module 40 calculates a displacement data according to the second air intake area, and sends a displacement control signal of the mobile plate 30 containing the displacement data. The displacement data is calculated by the mobile control module 40 according to the difference between the first air intake area and the second air intake area, and the geometric information between the second substrate 20 and the mobile plate 30. The driving module 50 receives the displacement control signal of the mobile plate 30 sent by the mobile control module 40 and drives the mobile plate 30 to move relative to the second substrate 20. In this way, an automated process of reducing the air intake area of ​​the radiator 60 is realized, which is conducive to saving labor costs and achieving precise control.

[0070] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0071] The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation scheme or changes that do not deviate from the technical spirit of the present invention, such as combination, division or repetition of features, should be included in the scope of protection of the present invention.

Claims

1. A method for reducing the air intake area of ​​a radiator, wherein the radiator is used for a tube of a dual-source CT machine that is in a non-working state or in a low-power working state, and the radiator has a first air intake area, characterized in that: The following steps are included: obtaining the cooling oil inlet temperature T of the radiator in and cooling oil outlet temperature T out ; According to the temperature of each component of the dual-source CT machine, the minimum fan speed R is obtained. fan ; According to the cooling oil inlet temperature T in , the cooling oil outlet temperature T out and the minimum fan speed R fan , calculating a second air intake area capable of enabling the radiator to dissipate heat stably; as well as Covering a portion of the air intake port reduces the air intake area of ​​the radiator from the first air intake area to the second air intake area according to the obtained second air intake area.

2. The method for reducing the air intake area of ​​a radiator according to claim 1, characterized in that: Step: According to the temperature of each component of the dual-source CT machine, obtain the minimum fan speed R fan ,include: Obtain the temperature of each component of the dual-source CT machine; According to the temperature of each component, obtain the fan speed required by each component; and According to the fan speed required by each component, the maximum fan speed is selected as the minimum fan speed R fan .

3. The method for reducing the air intake area of ​​a radiator according to claim 1, characterized in that: Step: According to the cooling oil inlet temperature T in , the cooling oil outlet temperature T out and the minimum fan speed R fan A second air inlet area of ​​the radiator is calculated according to the following formula: S2=(T out -T in )*R fan *C; Wherein, S2 is the second air inlet area of ​​the radiator, T out is the cooling oil outlet temperature, T in is the cooling oil inlet temperature, R fan is the minimum fan speed, and C is the distribution coefficient.

4. The method for reducing the air intake area of ​​a radiator according to claim 1, characterized in that: Step: According to the obtained second air intake area, cover a part of the air intake port to reduce the air intake area of ​​the radiator from the first air intake area to the second air intake area, specifically: set an air intake regulating device, the air intake regulating device includes a first substrate, the first substrate is provided with at least one first opening, the sum of the areas of at least one first opening is equal to the second air intake area, and cover the first substrate at the air intake port of the radiator to reduce the air intake area of ​​the radiator from the first air intake area to the second air intake area.

5. The method for reducing the air intake area of ​​a radiator according to claim 1, characterized in that: Step: According to the obtained second air intake area, covering a portion of the air intake port to reduce the air intake area of ​​the radiator from the first air intake area to the second air intake area, comprising: An air intake regulating device is provided, the air intake regulating device comprising a second substrate and a movable plate, the second substrate is provided with at least one second opening, the sum of the areas of at least one second opening is greater than or equal to the second air intake area, and the air intake port of the radiator is covered with the second substrate, so that the air intake area of ​​the radiator is reduced from the first air intake area to the sum of the areas of at least one second opening; The movable plate is arranged on one side of the second substrate, and the movable plate can be kept in close contact with the second substrate and move relative to the second substrate; and The movable plate is moved to partially cover at least one of the second openings, so that the air intake area of ​​the heat sink is reduced from the first air intake area to the second air intake area.

6. The method for reducing the air intake area of ​​a radiator according to claim 5, characterized in that: The movable plate is provided with at least one third opening. The movable plate is moved so that each of the second openings partially overlaps with a third opening, so that the air intake area of ​​the radiator is reduced from the first air intake area to the second air intake area.

7. The method for reducing the air intake area of ​​a radiator according to claim 5, characterized in that: The air intake regulating device further comprises a moving control module and a driving module, wherein the step of moving the moving plate to partially cover at least one of the second openings so that the air intake area of ​​the radiator is reduced from the first air intake area to the second air intake area comprises: The movement control module calculates a displacement data according to the second air intake area, and sends a moving plate displacement control signal including the displacement data to the driving module; and The driving module drives the moving plate to move relative to the second substrate according to the moving plate displacement control signal.

8. A dual-source CT machine, comprising an air intake regulating device, the air intake regulating device being used to reduce the air intake area of ​​a radiator from a first air intake area to a second air intake area, the radiator being used for a tube of the dual-source CT machine that is in a non-operating state or in a low-power operating state, characterized in that: The air intake regulating device comprises a first substrate (10) having at least one first opening (11), the sum of the areas of the at least one first opening (11) being equal to the second air intake area, and when the first substrate (10) covers the air intake port of the radiator, the air intake area of ​​the radiator is reduced from the first air intake area to the second air intake area.

9. A dual-source CT machine, comprising an air intake regulating device, the air intake regulating device being used to reduce the air intake area of ​​a radiator from a first air intake area to a second air intake area, the radiator being used for a tube of the dual-source CT machine that is in a non-operating state or in a low-power operating state, characterized in that: The air intake regulating device comprises a second substrate (20) having at least one second opening (21) and a movable plate (30); the sum of the areas of at least one second opening (21) is greater than or equal to the second air intake area; when the second substrate (20) covers the air intake of the radiator, the air intake area of ​​the radiator is reduced from the first air intake area to the sum of the areas of at least one second opening (21); the movable plate (30) is arranged on one side of the second substrate (20) and is capable of being kept in close contact with the second substrate and moving relative to the second substrate (20) to partially cover at least one second opening (21), so that the air intake area of ​​the radiator is reduced from the first air intake area to the second air intake area.

10. The dual-source CT machine according to claim 9, characterized in that: The movable plate (30) is provided with at least one third opening (31), and the movable plate (30) is moved so that each of the second openings (21) partially overlaps with a third opening (31), thereby reducing the air intake area of ​​the radiator from the first air intake area to the second air intake area.

11. The dual-source CT machine according to claim 9, characterized in that: The air intake regulating device further comprises: a movement control module (40), which calculates a displacement data according to the second air intake area and sends a movement plate displacement control signal including the displacement data; and A driving module (50) receives the moving plate displacement control signal sent by the moving control module (40) and drives the moving plate (30) to move relative to the second substrate (20).

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