Three-way ball valve, electric vehicle, opening control method, electronic device and storage medium

Abstract

Disclosed is a three-way ball valve (100), comprising a valve body (10) and a spherical valve core (20), the valve body (10) being provided with a medium inlet (11), a first medium outlet (12) and a second medium outlet (13), and the spherical valve core (20) being rotatably arranged in the valve body (10). The spherical valve core (20) is provided with a first state in which the medium inlet (11) corresponds to a first flow channel (211) and a second flow channel (212), the first flow channel (211) being used for leading to the first medium outlet (12), and the second flow channel (212) being used for leading to the second medium outlet (13); and a second state in which the medium inlet (11) corresponds to a third flow channel (213) and a fourth flow channel (214), the third flow channel (213) being used for leading to the first medium outlet (12), and the fourth flow channel (214) being used for leading to the second medium outlet (13). The spherical valve core (20) can be controlled to rotate with respect to the valve body (10), allowing for adjustable opening of the spherical valve core (20) in both the first state and the second state. The solution can balance flow differences. Further disclosed are an electric vehicle using the ball valve, an opening control method, an electronic device and a storage medium.

Description

Three-way ball valve, electric vehicle, opening control method, electronic device and storage medium Technical Field

[0001] The present disclosure relates to the field of valve technology, and in particular to a three-way ball valve, an electric vehicle, an opening control method, an electronic device, and a storage medium. Background Art

[0002] For example, electric vehicle air conditioning uses a water-cooled loop to heat both the battery and the passenger compartment, creating a heat distribution problem. For example, if the battery needs to be heated during passenger compartment heating, the air temperature outflow from the passenger compartment will fluctuate significantly. Existing ball valve structures are unable to balance this large difference in flow demand between the two sides.

[0003] Summary of the Invention

[0004] In view of this, the present disclosure provides a three-way ball valve, an opening control method, an electronic device and a storage medium, which can balance the problem of large differences in flow demands on both sides.

[0005] According to a first aspect of an embodiment of the present disclosure, a three-way ball valve is provided, comprising: a valve body having a medium inlet, a first medium outlet, and a second medium outlet, wherein the medium inlet is used to allow a circulating medium to pass through, the first medium outlet is used to connect to a first heating unit, and the second medium outlet is used to connect to a second heating unit; and

[0006] A spherical valve core is rotatably disposed in the valve body. The spherical valve core is provided with a plurality of flow channels, which are respectively a first flow channel, a second flow channel, a third flow channel and a fourth flow channel. The cross-sectional area of ​​the first flow channel is smaller than the cross-sectional area of ​​the second flow channel, and the cross-sectional area of ​​the third flow channel is larger than the cross-sectional area of ​​the fourth flow channel. The plurality of flow channels are distributed around the rotation axis of the spherical valve core. The spherical valve core is provided with a first state and a second state. In the first state, the medium access port corresponds to the first flow channel and the second flow channel, and the first flow channel is used to communicate with the first medium outlet. The second flow channel is used to communicate with the second medium outlet. In the second state, the medium access port corresponds to the third flow channel and the fourth flow channel. The third flow channel is used to communicate with the first medium outlet, and the fourth flow channel is used to communicate with the second medium outlet. The spherical valve core is provided with an initial position, which is the position when the spherical valve core is in the first state and the opening of the three-way ball valve is 50%. The spherical valve core is controlled to rotate relative to the valve body, so that the opening of the three-way ball valve when the spherical valve core is in the first state and the second state can be adjusted.

[0007] Optionally, the first flow channel and the second flow channel are arranged so that a ratio of a cross-sectional area of ​​the first flow channel to a cross-sectional area of ​​the second flow channel is equal to a ratio of a maximum heat load of the first heating unit to a maximum heat load of the second heating unit under a first operating condition, and is also equal to a ratio of a communication area between the medium access port and the first flow channel to a communication area between the medium access port and the second flow channel when the spherical valve core is in the first state and the opening of the three-way ball valve is 50%, wherein the maximum heat load of the first heating unit under the first operating condition is less than the maximum heat load of the second heating unit; and / or

[0008] The third flow channel and the fourth flow channel are arranged so that the ratio of the cross-sectional area of ​​the third flow channel to the cross-sectional area of ​​the fourth flow channel is equal to the ratio of the maximum heat load of the first heating unit to the maximum heat load of the second heating unit under the second operating condition, wherein the maximum heat load of the first heating unit under the second operating condition is greater than the maximum heat load of the second heating unit.

[0009] Optionally, the spherical valve core also includes a first cut-off portion and a second cut-off portion where no flow channel is set, the first flow channel is adjacent to the second flow channel, and the third flow channel is adjacent to the fourth flow channel. The first cut-off portion and the second cut-off portion are respectively located on both sides of the first flow channel and the second flow channel, and are used to separate the first flow channel from the fourth flow channel, and to separate the second flow channel from the third flow channel.

[0010] Optionally, a cross-sectional area of ​​the first flow channel is equal to a cross-sectional area of ​​the fourth flow channel.

[0011] Optionally, the axial dimension of the first flow channel in the direction of the rotating shaft is equal to the axial dimension of the fourth flow channel in this direction, and the circumferential dimension of the first flow channel is equal to the circumferential dimension of the fourth flow channel; and / or the first flow channel and the fourth flow channel are symmetrically arranged in the circumference of the spherical valve core.

[0012] Optionally, the cross-sectional area of ​​the second flow channel is equal to the cross-sectional area of ​​the third flow channel.

[0013] Optionally, the axial dimension of the second flow channel in the direction of the rotation axis is equal to the axial dimension of the third flow channel in this direction, and the circumferential dimension of the second flow channel is equal to the circumferential dimension of the third flow channel; and / or the second flow channel and the third flow channel are symmetrically arranged in the circumference of the spherical valve core.

[0014] According to a third aspect of an embodiment of the present disclosure, a method for controlling the opening of a three-way ball valve is provided. The method is applied to any one of the three-way ball valves described above, and the method includes:

[0015] Obtaining a ratio of a current heat load of the first heating unit to a current heat load of the second heating unit, wherein the ratio is defined as a first ratio;

[0016] Determine the size of |first ratio - second ratio| and |first ratio - third ratio|, the size of the first ratio and the second ratio, and the size of the first ratio and the third ratio, and control the state and opening of the three-way ball valve based on at least one judgment result; wherein, the second ratio is defined as the ratio of the cross-sectional area of ​​the first flow channel to the cross-sectional area of ​​the second flow channel, and the third ratio is defined as the ratio of the cross-sectional area of ​​the third flow channel to the cross-sectional area of ​​the fourth flow channel.

[0017] Optionally, the second ratio is equal to the ratio of the maximum heat load of the first heating unit to the maximum heat load of the second heating unit under the first operating condition, and is also equal to the ratio of the communication area between the medium inlet and the first flow channel to the communication area between the medium inlet and the second flow channel when the spherical valve core is in the first state and the opening of the three-way ball valve is 50%, and the maximum heat load of the first heating unit under the first operating condition is less than the maximum heat load of the second heating unit;

[0018] The third ratio is equal to the ratio of the maximum heat load of the first heating unit to the maximum heat load of the second heating unit under the second working condition, and the maximum heat load of the first heating unit under the second working condition is greater than the maximum heat load of the second heating unit.

[0019] Optionally, if |first ratio-second ratio| is equal to |first ratio-third ratio|, the three-way ball valve is controlled to be in the first state, with an opening Op=50%.

[0020] Optionally, if |first ratio - second ratio| is less than |first ratio - third ratio|, and the first ratio is greater than the second ratio, the spherical valve core is controlled to be in the first state, with an opening Op = 50% + (S1 - S) / S * 50%, so that the flow rate of the first flow channel is greater than the flow rate of the second flow channel;

[0021] If |first ratio - second ratio| is less than |first ratio - third ratio|, and the first ratio is less than the second ratio, the spherical valve core is controlled to be in the first state, with an opening Op = 50% - (S - S1) / S * 50%, so that the flow rate of the first flow channel is less than the flow rate of the second flow channel;

[0022] If |first ratio - second ratio| is less than |first ratio - third ratio|, and the first ratio is equal to the second ratio, the spherical valve core is controlled to be in the first state, with an opening Op = 50%, and the medium inlet of the three-way ball valve is connected to the first flow channel and the second flow channel;

[0023] Wherein, S1 is the ratio of the current heat load of the first heating unit to the current heat load of the second heating unit, and S is the ratio of the cross-sectional area of ​​the first flow channel to the cross-sectional area of ​​the second flow channel.

[0024] Optionally, if |first ratio - second ratio| is greater than |first ratio - third ratio|, and the first ratio is greater than the third ratio, the spherical valve core is controlled to be in the second state, with an opening Op = 50% + (S1 - S') / S' * 50%, so that the flow rate of the third flow channel is greater than the flow rate of the fourth flow channel;

[0025] If |first ratio - second ratio| is greater than |first ratio - third ratio|, and the first ratio is less than the third ratio, the spherical valve core is controlled to be in the second state, with an opening Op = 50% - (S' - S1) / S' * 50%, so that the flow rate of the third flow channel is less than the flow rate of the fourth flow channel;

[0026] If |first ratio - second ratio| is greater than |first ratio - third ratio|, and the first ratio is equal to the third ratio, the spherical valve core is controlled to be in the second state, with an opening Op = 50%, and the medium inlet of the three-way ball valve is connected to the third flow channel and the fourth flow channel;

[0027] Wherein, S1 is the ratio of the current heat load of the first heating unit to the current heat load of the second heating unit, and S' is the ratio of the cross-sectional area of ​​the third flow channel to the cross-sectional area of ​​the fourth flow channel.

[0028] Optionally, the current heat load of the first heating unit is R1×Q1×|T1-Ts|, and the current heat load of the second heating unit is R2×Q2×|T2-Td|;

[0029] Wherein: R1 is the specific heat capacity of the medium in the first heating unit, Q1 is the circulation flow rate of the medium in the first heating unit, T1 is the current temperature of the medium in the first heating unit, and Ts is the target temperature of the medium in the first heating unit; R2 is the specific heat capacity of the medium in the second heating unit, Q2 is the circulation flow rate of the medium in the second heating unit, T2 is the current temperature of the medium in the second heating unit, and Td is the target temperature of the medium in the second heating unit.

[0030] According to a third aspect of an embodiment of the present disclosure, an electronic device is proposed, comprising a memory and a processor, wherein the memory is used to store computer instructions that can be executed on the processor, and the processor is used to implement any one of the opening adjustment methods when executing the computer instructions.

[0031] According to a fourth aspect of an embodiment of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored. When the program is executed by a processor, the above-mentioned opening control method is implemented.

[0032] According to the embodiments of the present disclosure, the present disclosure provides a three-way ball valve, an electric vehicle, an opening control method, an electronic device and a storage medium, wherein the spherical valve core is provided with a plurality of flow channels, and the spherical valve core can be in a first state and a second state, the spherical valve core can be controlled to switch to different states, and the opening of the three-way ball valve can be adjusted in the first state and the second state, and then can be connected with flow channels with different cross-sectional areas through a medium access port to realize control of the flow on both sides, so as to balance the problem of large differences in flow demands on both sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0034] FIG1 is a schematic diagram showing a spherical valve core at an initial position according to an embodiment of the present disclosure, with an opening degree of 50%.

[0035] FIG. 2 is a schematic diagram of a spherical valve core according to an embodiment of the present disclosure.

[0036] FIG3 is a schematic diagram showing a spherical valve core in a first state according to an embodiment of the present disclosure, with an opening degree of 0. FIG.

[0037] FIG4 is a schematic diagram showing a spherical valve core in a first state according to an embodiment of the present disclosure, with an opening degree of 100%.

[0038] FIG5 is a schematic diagram showing a spherical valve core in a second state according to an embodiment of the present disclosure, with an opening degree of 100%.

[0039] FIG6 is a schematic diagram showing a spherical valve core in a second state according to an embodiment of the present disclosure, with an opening degree of 0. FIG.

[0040] FIG7 is a flow chart showing a method for controlling the opening of a three-way ball valve according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0041] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present disclosure.

[0042] The terms used in the embodiments of the present disclosure are for the purpose of describing specific embodiments only and are not intended to limit the embodiments of the present disclosure. The singular forms "a," "an," and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0043] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0044] For the purpose of brevity and ease of understanding, the terms "greater than," "less than," "higher than," and "lower than" are used herein to describe size relationships. However, those skilled in the art will understand that the term "greater than" also encompasses the meaning of "greater than or equal to," and "less than" also encompasses the meaning of "less than or equal to," and the term "higher than" also encompasses the meaning of "higher than or equal to," and "lower than" also encompasses the meaning of "lower than or equal to."

[0045] Please refer to Figures 1 and 2 . Figure 1 is a schematic diagram of a three-way ball valve 100 according to an exemplary embodiment of the present disclosure, wherein the spherical valve core 20 is in an initial position with an opening of 50%. Figure 2 is a schematic diagram of the spherical valve core 20 .

[0046] The present disclosure provides a three-way ball valve 100, comprising a valve body 10 and a spherical valve core 20 rotatably disposed within the valve body 10, with the spherical valve core 20 having a rotation axis O. A transmission rod may be disposed at the top of the spherical valve core 20, and a motor may drive the transmission rod to rotate via a gear mechanism, thereby driving the spherical valve core 20 to rotate. The gear mechanism serves as a speed reduction mechanism.

[0047] The valve body 10 is provided with a medium inlet 11, a first medium outlet 12, and a second medium outlet 13. The medium inlet 11 is used to receive a circulating medium, such as a liquid medium. The first medium outlet 12 is connected to a first heating unit, which is used to heat a first component. The first heating unit includes, but is not limited to, a heat exchange component. The second medium outlet 13 is connected to a second heating unit, which is used to heat a second component. The second heating unit includes, but is not limited to, an air conditioner. In one embodiment, one of the first and second components is a battery, and the other is a passenger compartment, but this is not limited to this.

[0048] The spherical valve core 20 is provided with a plurality of flow channels 21, namely a first flow channel 211, a second flow channel 212, a third flow channel 213, and a fourth flow channel 214. The cross-sectional area of ​​the first flow channel 211 is smaller than the cross-sectional area of ​​the second flow channel 212, and the cross-sectional area of ​​the third flow channel 213 is larger than the cross-sectional area of ​​the fourth flow channel 214. The plurality of flow channels 21 are distributed around the rotation axis O of the spherical valve core 20. The spherical valve core 20 is sealed with the valve body 10, so that the plurality of flow channels 21 form sealed flow channels and are separated from each other. For example, the spherical valve core 20 and the valve body 10 can be sealed with a sealing ring. The cross-sectional area referred to here refers to the area of ​​the first flow channel 211 in a cross section taken along the vertical plane where the rotation axis O shown in FIG. 2 is located. The cross-sectional area of ​​the second flow channel 212, the third flow channel 213, or the fourth flow channel 214 has the same meaning as above and is not further described here.

[0049] The spherical valve core 20 has a first state and a second state. In the first state, the medium inlet 11 corresponds to the first flow channel 211 and the second flow channel 212. The first flow channel 211 is used to communicate with the first medium outlet 12, and the second flow channel 212 is used to communicate with the second medium outlet 13. In the second state, the medium inlet 11 corresponds to the third flow channel 213 and the fourth flow channel 214. The third flow channel 213 is used to communicate with the first medium outlet 12, and the fourth flow channel 214 is used to communicate with the second medium outlet 13. The spherical valve core 20 has an initial position, which is the position when the spherical valve core 20 is in the first state and the opening of the three-way ball valve is 50%. The spherical valve core 20 is controllably rotatable relative to the valve body 10, so that the opening of the three-way ball valve 100 is adjustable in both the first and second states. It should be noted that when the spherical valve core 20 is in the first state and the opening of the three-way ball valve is 50%, the medium inlet 11 is in sealed communication with the first flow channel 211 and the second flow channel 212 .

[0050] According to the above description, the spherical valve core 20 is provided with a plurality of flow channels 21, and the spherical valve core 20 can be in a first state and a second state. The spherical valve core 20 can be controlled to switch to different states, and the opening of the three-way ball valve 100 can be adjusted in the first state and the second state, and then can be connected with the flow channels 21 with different cross-sectional areas through the medium access port 11 to realize the control of the flow on both sides to balance the problem of large differences in flow demand on both sides.

[0051] In one embodiment, the first flow channel 211 and the second flow channel 212 are configured such that the ratio of the cross-sectional area of ​​the first flow channel 211 to the cross-sectional area of ​​the second flow channel 212 is equal to the ratio of the maximum heat load of the first heating unit to the maximum heat load of the second heating unit under the first operating condition, and is also equal to the ratio of the communication area between the medium inlet 11 and the first flow channel 211 to the communication area between the medium inlet 11 and the second flow channel 212 when the ball valve core 20 is in the first state and the three-way ball valve is 50% open. In the first operating condition, the maximum heat load of the first heating unit is less than the maximum heat load of the second heating unit. With this configuration, the initial position of the ball valve core 20 can be determined based on the ratio of the maximum heat load of the first heating unit to the maximum heat load of the second heating unit under the first operating condition. When the ratio of the current heat load of the first heating unit to the current heat load of the second heating unit changes, the state of the ball valve core 20 and the opening of the three-way ball valve 100 can be controlled so that the flow rate is controlled by the three-way ball valve 100 to meet the flow distribution requirements on both sides. The first working condition may be, for example, a cooling working condition. Under the first working condition, the spherical valve core 20 is in the first state. At this time, the medium inlet 11 corresponds to the area where the first flow channel 211 and the second flow channel 212 are located.

[0052] In one embodiment, the third flow channel 213 and the fourth flow channel 214 are configured such that the ratio of the cross-sectional area of ​​the third flow channel 213 to the cross-sectional area of ​​the fourth flow channel 214 is equal to the ratio of the maximum heat load of the first heating unit to the maximum heat load of the second heating unit under the second operating condition, wherein the maximum heat load of the first heating unit under the second operating condition is greater than the maximum heat load of the second heating unit. With this configuration, the state of the ball valve core 20 and the opening of the three-way ball valve 100 can be controlled based on the ratio of the maximum heat load of the first heating unit to the maximum heat load of the second heating unit under the second operating condition, so that the flow rate can be controlled through the three-way ball valve 100 to meet the flow distribution requirements on both sides. The second operating condition can be, for example, a heating condition. Under the second operating condition, the ball valve core 20 is in the second state, at which time the medium inlet 11 corresponds to the area where the third flow channel 213 and the fourth flow channel 214 are located.

[0053] In one embodiment, the spherical valve core 20 further includes a first shut-off portion 215 and a second shut-off portion 216, each of which is free of flow channels. The first shut-off portion 215 and the second shut-off portion 216 are distributed around the rotation axis O of the spherical valve core 20. The first flow channel 211 is adjacent to the second flow channel 212, and the third flow channel 213 is adjacent to the fourth flow channel 214. The first shut-off portion 215 and the second shut-off portion 216 are located on either side of the first flow channel 211 and the second flow channel 212, respectively, to separate the first flow channel 211 from the fourth flow channel 214, and to separate the second flow channel 212 from the third flow channel 213. With this arrangement, the first flow channel 211 and the second flow channel 212 form a group, corresponding to the medium inlet 11 in the first state. The third flow channel 213 and the fourth flow channel 214 form a group, corresponding to the medium inlet 11 in the second state. This ensures that the two groups of flow channels are reliably separated, ensuring reliable flow distribution in the first and second states.

[0054] The cross-sectional areas of the first flow channel 211, the second flow channel 212, the third flow channel 213, and the fourth flow channel 214 can be set according to actual needs. In one embodiment, the cross-sectional areas of the first flow channel 211, the second flow channel 212, the third flow channel 213, and the fourth flow channel 214 can be different. In another embodiment, the cross-sectional area of ​​the first flow channel 211 can be equal to the cross-sectional area of ​​the fourth flow channel 214, but is not limited to this. In one embodiment, the cross-sectional area of ​​the second flow channel 212 can be equal to the cross-sectional area of ​​the third flow channel 213, but is not limited to this.

[0055] In one embodiment, the axial dimension of the first flow channel 211 in the direction of the rotation axis O is equal to the axial dimension of the fourth flow channel 214 in the direction of the rotation axis O, and the circumferential dimension of the first flow channel 211 is equal to the circumferential dimension of the fourth flow channel 214. In this way, the cross-sectional area of ​​the first flow channel 211 is equal to the cross-sectional area of ​​the fourth flow channel 214.

[0056] In one embodiment, the first flow channel 211 and the fourth flow channel 214 are symmetrically arranged in the circumferential direction of the spherical valve core.

[0057] In one embodiment, the second flow channel 212 and the third flow channel 213 are symmetrically arranged in the circumferential direction of the spherical valve core 20. This facilitates the layout of the flow channels.

[0058] In one embodiment, the axial dimension of the second flow channel 212 in the direction of the rotation axis O is equal to the axial dimension of the third flow channel 213 in this direction, and the circumferential dimension of the second flow channel 212 is equal to the circumferential dimension of the third flow channel 213. In this way, the cross-sectional area of ​​the second flow channel 212 is equal to the cross-sectional area of ​​the third flow channel 213.

[0059] In the embodiment shown in FIG1 , the first cut-off portion 215 and the second cut-off portion 216 are symmetrically arranged around the circumference of the spherical valve core. The first cut-off portion 215 is located between the first flow channel 211 and the fourth flow channel 214 , and the second cut-off portion 216 is located between the second flow channel 212 and the third flow channel 213 .

[0060] Please refer to Figure 3, which shows a schematic diagram of the three-way ball valve 100, wherein the spherical valve core 20 is in the first state, with an opening of 0. That is, the first flow channel 211 is closed, and the second flow channel 212 is fully open.

[0061] Please refer to Figure 4, which shows a schematic diagram of the three-way ball valve 100, wherein the spherical valve core 20 is in the first state with an opening of 100%, that is, the first flow channel 211 is fully open and the second flow channel 212 is closed.

[0062] Please refer to Figure 5, which shows a schematic diagram of the three-way ball valve 100, wherein the spherical valve core 20 is in the second state with an opening of 100%, that is, the third flow channel 213 is fully open and the fourth flow channel 214 is closed.

[0063] Please refer to Figure 6, which shows a schematic diagram of the three-way ball valve 100, wherein the spherical valve core 20 is in the second state, with an opening of 0. That is, the third flow channel 213 is closed, and the fourth flow channel 214 is fully open.

[0064] Please refer to FIG. 7 , which is a flow chart of a method for controlling the opening of a three-way ball valve 100 according to an exemplary embodiment of the present disclosure.

[0065] The present disclosure further provides a method for controlling the opening of a three-way ball valve 100 , which includes step S10 , step S20 , and step S30 .

[0066] Step S10: obtaining a ratio of a current heat load of the first heating unit to a current heat load of the second heating unit, wherein the ratio is defined as a first ratio.

[0067] The ratio of the current heat load of the first heating unit to the current heat load of the second heating unit includes two situations: greater than 1 or less than 1. Corresponding to different working conditions, the ratio of the current heat load of the first heating unit to the current heat load of the second heating unit is different.

[0068] The current heat load of the first heating unit is R1×Q1×|T1-Ts|, and the current heat load of the second heating unit is R2×Q2×|T2-Td|. Here, R1 is the specific heat of the medium in the first heating unit, Q1 is the circulation flow rate with the medium in the first heating unit, T1 is the current temperature of the medium in the first heating unit, and Ts is the target temperature of the medium in the first heating unit; R2 is the specific heat of the medium in the second heating unit, Q2 is the circulation flow rate with the medium in the second heating unit, T2 is the current temperature of the medium in the second heating unit, and Td is the target temperature of the medium in the second heating unit. R1 and R2 are fixed values. For example, R1 can be the specific heat of the coolant, and R2 can be the specific heat of air. Q1, T1, Q2, and T2 can be acquired through sensors, while Ts and Td can be preset values.

[0069] Step S20, determine the size of |first ratio - second ratio| and |first ratio - third ratio|, the size of the first ratio and the second ratio, and the size of the first ratio and the third ratio, wherein the second ratio is defined as the ratio of the cross-sectional area of ​​the first flow channel to the cross-sectional area of ​​the second flow channel, and the third ratio defines the ratio of the cross-sectional area of ​​the third flow channel to the cross-sectional area of ​​the fourth flow channel.

[0070] In this step, the second ratio is equal to the ratio of the maximum heat load of the first heating unit to the maximum heat load of the second heating unit under the first operating condition. It is also equal to the ratio of the communication area between the medium inlet 11 and the first flow channel 211 to the communication area between the medium inlet 11 and the second flow channel 212 when the ball valve core 20 is in the first state and the three-way ball valve is 50% open. Under the first operating condition, the maximum heat load of the first heating unit is less than the maximum heat load of the second heating unit. In this way, the design parameters of the first flow channel 211 and the second flow channel 212 can be linked to the heat load parameters during system operation to meet flow control requirements.

[0071] In this step, the third ratio is equal to the ratio of the maximum heat load of the first heating unit to the maximum heat load of the second heating unit under the second operating condition. Under the second operating condition, the maximum heat load of the first heating unit is greater than the maximum heat load of the second heating unit. In this way, the design parameters of the third flow channel 213 and the fourth flow channel 214 can be associated with the heat load parameters during system operation to meet flow control requirements.

[0072] Step S30: controlling the state and opening of the three-way ball valve according to at least one judgment result.

[0073] In this method, the spherical valve core 20 is controlled by the current heat load of the first heating unit and the second heating unit, and can thereby be controlled to switch between the first state and the second state, and can change its position in the first state and the second state to control the opening of the three-way ball valve 100, and then can be connected with the flow channel 21 with different cross-sectional areas through the medium inlet 11 to realize the control of the flow on both sides to balance the problem of large difference in flow demand on both sides.

[0074] In one embodiment, if |first ratio - second ratio| is less than |first ratio - third ratio|, and the first ratio is greater than the second ratio, the spherical valve core 20 is controlled to be in the first state, with an opening Op = 50% + (S1 - S) / S * 50%, so that the flow rate of the first flow channel 211 is greater than the flow rate of the second flow channel 212. Alternatively, the first flow channel 211 can be fully open, and the second flow channel 212 can be closed. Here, S1 is the ratio of the current heat load of the first heating unit to the current heat load of the second heating unit, and S is the ratio of the cross-sectional area of ​​the first flow channel 211 to the cross-sectional area of ​​the second flow channel 212.

[0075] If |first ratio - second ratio| is less than |first ratio - third ratio|, and the first ratio is less than the second ratio, the spherical valve core 20 is controlled to be in the first state, with an opening Op = 50% - (S - S1) / S * 50%, so that the flow rate of the first flow channel 211 is less than the flow rate of the second flow channel 212. Alternatively, the first flow channel 211 can be closed, and the second flow channel 212 can be fully opened.

[0076] If |first ratio - second ratio| is less than |first ratio - third ratio|, and the first ratio is equal to the second ratio, the spherical valve core 20 is controlled to be in the first state, with an opening Op = 50%. At this time, the medium inlet 11 of the three-way ball valve 100 is connected to the first flow channel 211 and the second flow channel 212.

[0077] In this method, the spherical valve core 20 can be controlled to be in the first state and the opening of the three-way ball valve 100 can be controlled according to the size of |first ratio-second ratio| and |first ratio-third ratio| and the size of the first ratio and the second ratio, thereby achieving flow distribution.

[0078] In one embodiment, if |first ratio - second ratio| is greater than |first ratio - third ratio|, and the first ratio is greater than the third ratio, the spherical valve core 20 is controlled to be in the second state, with an opening Op = 50% + (S1 - S') / S' * 50%, so that the flow rate of the third flow channel 213 is greater than the flow rate of the fourth flow channel 214. Alternatively, the third flow channel 213 can be fully open, and the fourth flow channel 214 can be closed. S1 is the ratio of the current heat load of the first heating unit to the current heat load of the second heating unit, and S' is the ratio of the cross-sectional area of ​​the third flow channel 213 to the cross-sectional area of ​​the fourth flow channel 214.

[0079] If |first ratio - second ratio| is greater than |first ratio - third ratio|, and the first ratio is less than the third ratio, the spherical valve core 20 is controlled to be in the second state, with an opening Op = 50% - (S' - S1) / S' * 50%, so that the flow rate of the third flow channel 213 is less than the flow rate of the fourth flow channel 214. Alternatively, the third flow channel 213 can be closed, and the fourth flow channel 214 can be fully opened.

[0080] If |first ratio - second ratio| is greater than |first ratio - third ratio|, and the first ratio is equal to the third ratio, the spherical valve core 20 is controlled to be in the second state, the opening Op = 50%, and the medium inlet 11 of the three-way ball valve is connected to the third flow channel 213 and the fourth flow channel 214.

[0081] In this method, the spherical valve core 20 can be controlled to be in the second state and the opening of the three-way ball valve 100 can be controlled according to the size of |first ratio-second ratio| and |first ratio-third ratio| and the size of the first ratio and the third ratio, thereby achieving flow distribution.

[0082] In one embodiment, if |first ratio - second ratio| equals |first ratio - third ratio|, the spherical valve core 20 is controlled to be in the first state, with an opening Op = 50%. At this time, the medium inlet 11 of the three-way ball valve 100 is connected to the first flow channel 211 and the second flow channel 212. In other words, at this time, the spherical valve core 20 is in the initial position, with an opening of 50%.

[0083] The present disclosure also provides an electronic device, which includes a memory and a processor, wherein the memory is used to store computer instructions that can be executed on the processor, and the processor is used to implement any of the above-mentioned opening adjustment methods when executing the computer instructions.

[0084] The present disclosure further provides a computer-readable storage medium having a computer program stored thereon, wherein the program, when executed by a processor, implements any of the above-mentioned methods for controlling the opening degree.

[0085] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present disclosure should be included in the scope of protection of the present disclosure.

Claims

1. A three-way ball valve, characterized in that: include: The valve body is provided with a medium access port, a first medium outlet, and a second medium outlet, wherein the medium access port is used to introduce circulating medium, the first medium outlet is used to connect to a first heating unit, and the second medium outlet is used to connect to a second heating unit; and A spherical valve core is rotatably disposed in the valve body. The spherical valve core is provided with a plurality of flow channels, and the plurality of flow channels are respectively a first flow channel, a second flow channel, a third flow channel and a fourth flow channel. The cross-sectional area of ​​the first flow channel is smaller than the cross-sectional area of ​​the second flow channel, and the cross-sectional area of ​​the third flow channel is larger than the cross-sectional area of ​​the fourth flow channel. The plurality of flow channels are distributed around the rotating axis of the spherical valve core. The spherical valve core is provided with a first state and a second state. In the first state, the medium access port corresponds to the first flow channel and the second flow channel, and the first flow channel is used to communicate with the first medium outlet. The second flow channel is used to communicate with the second medium outlet. In the second state, the medium access port corresponds to the third flow channel and the fourth flow channel. The third flow channel is used to communicate with the first medium outlet, and the fourth flow channel is used to communicate with the second medium outlet. The spherical valve core is provided with an initial position, which is the position when the spherical valve core is in the first state and the opening of the three-way ball valve is 50%. The spherical valve core is controlled to rotate relative to the valve body, so that the opening of the three-way ball valve when the spherical valve core is in the first state and the second state can be adjusted.

2. The three-way ball valve according to claim 1, characterized in that: The first flow channel and the second flow channel are arranged so that the ratio of the cross-sectional area of ​​the first flow channel to the cross-sectional area of ​​the second flow channel is equal to the ratio of the maximum heat load of the first heating unit to the maximum heat load of the second heating unit under the first working condition, and is also equal to the ratio of the communication area between the medium access port and the first flow channel to the communication area between the medium access port and the second flow channel when the spherical valve core is in the first state and the opening of the three-way ball valve is 50%, wherein the maximum heat load of the first heating unit under the first working condition is less than the maximum heat load of the second heating unit; and / or The third flow channel and the fourth flow channel are arranged so that the ratio of the cross-sectional area of ​​the third flow channel to the cross-sectional area of ​​the fourth flow channel is equal to the ratio of the maximum heat load of the first heating unit to the maximum heat load of the second heating unit under the second working condition, wherein the maximum heat load of the first heating unit under the second working condition is greater than the maximum heat load of the second heating unit.

3. The three-way ball valve according to claim 1, characterized in that: The spherical valve core also includes a first cut-off portion and a second cut-off portion where no flow channel is set, the first flow channel is adjacent to the second flow channel, the third flow channel is adjacent to the fourth flow channel, the first cut-off portion and the second cut-off portion are respectively located on both sides of the first flow channel and the second flow channel, and are used to separate the first flow channel from the fourth flow channel, and to separate the second flow channel from the third flow channel.

4. The three-way ball valve according to claim 3, characterized in that: The cross-sectional area of ​​the first flow channel is equal to the cross-sectional area of ​​the fourth flow channel.

5. The three-way ball valve according to claim 4, characterized in that: The axial dimension of the first flow channel in the direction of the rotation axis is equal to the axial dimension of the fourth flow channel in this direction, and the circumferential dimension of the first flow channel is equal to the circumferential dimension of the fourth flow channel; and / or The first flow channel and the fourth flow channel are symmetrically arranged in the circumferential direction of the spherical valve core.

6. The three-way ball valve according to claim 3, characterized in that: The cross-sectional area of ​​the second flow channel is equal to the cross-sectional area of ​​the third flow channel.

7. The three-way ball valve according to claim 6, characterized in that: The axial dimension of the second flow channel in the direction of the rotation axis is equal to the axial dimension of the third flow channel in this direction, and the circumferential dimension of the second flow channel is equal to the circumferential dimension of the third flow channel; and / or The second flow channel and the third flow channel are symmetrically arranged in the circumferential direction of the spherical valve core.

8. A method for controlling the opening of a three-way ball valve, characterized in that: The opening control method is applied to the three-way ball valve according to any one of claims 1 to 7, and the method comprises: Obtaining a ratio of a current heat load of the first heating unit to a current heat load of the second heating unit, wherein the ratio is defined as a first ratio; Determine the magnitude of |first ratio - second ratio| and |first ratio - third ratio|, the magnitude of the first ratio and the second ratio, and the magnitude of the first ratio and the third ratio, and control the state and opening of the three-way ball valve according to at least one determination result; The second ratio is defined as the ratio of the cross-sectional area of ​​the first flow channel to the cross-sectional area of ​​the second flow channel, and the third ratio is defined as the ratio of the cross-sectional area of ​​the third flow channel to the cross-sectional area of ​​the fourth flow channel.

9. The method for controlling the opening of a three-way ball valve according to claim 8, characterized in that: The second ratio is equal to the ratio of the maximum heat load of the first heating unit to the maximum heat load of the second heating unit under the first working condition, and is also equal to the ratio of the communication area between the medium access port and the first flow channel to the communication area between the medium access port and the second flow channel when the spherical valve core is in the first state and the opening of the three-way ball valve is 50%, and the maximum heat load of the first heating unit under the first working condition is less than the maximum heat load of the second heating unit; The third ratio is equal to the ratio of the maximum heat load of the first heating unit to the maximum heat load of the second heating unit under the second working condition, and the maximum heat load of the first heating unit under the second working condition is greater than the maximum heat load of the second heating unit.

10. The control method according to claim 9, characterized in that: If |first ratio - second ratio| is equal to |first ratio - third ratio|, control the three-way ball valve to be in the first State, opening Op = 50%.

11. The control method according to claim 9, characterized in that: If |first ratio - second ratio| is less than |first ratio - third ratio|, and the first ratio is greater than the second ratio, the spherical valve core is controlled to be in the first state, and the opening Op = 50% + (S1 - S) / S * 50%, so that the flow rate of the first flow channel is greater than the flow rate of the second flow channel; If |first ratio - second ratio| is less than |first ratio - third ratio|, and the first ratio is less than the second ratio, the spherical valve core is controlled to be in the first state, and the opening Op = 50% - (S - S1) / S * 50%, so that the flow rate of the first flow channel is less than the flow rate of the second flow channel; If |first ratio - second ratio| is less than |first ratio - third ratio|, and the first ratio is equal to the second ratio, the spherical valve core is controlled to be in the first state, the opening Op = 50%, and the medium access port of the three-way ball valve is connected to the first flow channel and also connected to the second flow channel; Wherein, S1 is the ratio of the current heat load of the first heating unit to the current heat load of the second heating unit, and S is the ratio of the cross-sectional area of ​​the first flow channel to the cross-sectional area of ​​the second flow channel.

12. The control method according to claim 9, characterized in that: If |first ratio - second ratio| is greater than |first ratio - third ratio|, and the first ratio is greater than the third ratio, the spherical valve core is controlled to be in the second state, the opening Op = 50% + (S1 - S') / S' * 50%, so that the flow rate of the third flow channel is greater than the flow rate of the fourth flow channel; If |first ratio - second ratio| is greater than |first ratio - third ratio|, and the first ratio is less than the third ratio, the spherical valve core is controlled to be in the second state, and the opening Op = 50% - (S' - S1) / S' * 50%, so that the flow rate of the third flow channel is less than the flow rate of the fourth flow channel; If |first ratio - second ratio| is greater than |first ratio - third ratio|, and the first ratio is equal to the third ratio, the spherical valve core is controlled to be in the second state, the opening Op = 50%, and the medium access port of the three-way ball valve is connected to the third flow channel and also connected to the fourth flow channel; Wherein, S1 is the ratio of the current heat load of the first heating unit to the current heat load of the second heating unit, and S' is the ratio of the cross-sectional area of ​​the third flow channel to the cross-sectional area of ​​the fourth flow channel.

13. The control method according to claim 9, characterized in that: The current heat load of the first heating unit is R1×Q1×|T1-Ts|, and the current heat load of the second heating unit is R2×Q2×|T2-Td|; Wherein: R1 is the specific heat capacity of the medium in the first heating unit, Q1 is the circulation flow rate of the medium in the first heating unit, T1 is the current temperature of the medium in the first heating unit, and Ts is the target temperature of the medium in the first heating unit; R2 is the specific heat capacity of the medium in the second heating unit, Q2 is the circulation flow rate of the medium in the second heating unit, T2 is the current temperature of the medium in the second heating unit, and Td is the target temperature of the medium in the second heating unit.

14. An electronic device, characterized in that: The electronic device comprises a memory and a processor, wherein the memory is used to store computer instructions executable on the processor, and the processor is used to implement the opening adjustment method according to any one of claims 8 to 13 when executing the computer instructions.

15. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the opening control method according to any one of claims 8 to 13 is implemented.

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