Flow self-adaptive adjusting system under multi-parallel working condition

Abstract

The utility model discloses a flow self-adaptive adjusting system under a multi-parallel-connection working condition, and relates to the field of flow adjusting.The flow self-adaptive adjusting system under the multi-parallel-connection working condition comprises temperature control valves and multiple flow channels, the flow channels are distributed in parallel, the temperature control valves are arranged on any flow channel, the temperature control valves are located at one ends of water outlets of the flow channels, and the temperature control valves are located at the other ends of the water outlets of the flow channels. The flow channels distributed in parallel are connected with the same water inlet and the same water outlet, and the temperature control valve adjusts the flow of the heat exchange working medium according to the temperature change opening degree of the heat exchange working medium in the flow channels. According to the technical scheme, the flow of all the flow channels can be adjusted in a self-adaptive mode, and the requirement for the flow of the heat exchange working medium during heat dissipation of all parts of equipment is met.

Description

Technical Field

[0001] The utility model relates to the field of flow regulation, and in particular to a flow self-adapting regulation system under multiple parallel working conditions. Background Art

[0002] Currently, high-power electrical equipment often uses multi-parallel water cooling. However, the heat generation of various components within the equipment varies, necessitating the design of corresponding working fluid flow rates based on this heat generation. However, during actual use, environmental factors can cause operating conditions to change, leading to variations in the heat generation of various components. One component's temperature may rise, making the designed flow rate insufficient for cooling. Another component's temperature may drop, creating redundant flow rates and preventing the water cooling system from meeting the overall cooling requirements. Therefore, as the equipment's operating conditions change, the flow rates of each flow channel should be adjusted promptly to meet the cooling requirements of each component and ensure efficient operation of the water cooling system.

[0003] The existing technical solution mainly adopts a regulation system composed of sensors, controllers and solenoid valves. The system uses feedback regulation to adjust the flow. Its principle is as follows: after the equipment changes its operating conditions, the temperature of the cooling water flowing through each part changes. The temperature sensor transmits a signal to the controller. Combined with the signal of the flow sensor, the controller determines the required flow of each part after the operating condition changes and sends a signal to the solenoid valve; the solenoid valve is activated to adjust the flow of each part, the flow sensor transmits a feedback signal to the controller, and the temperature sensor transmits the adjusted signal to the controller; the controller determines whether the heat dissipation requirements are met, and stops adjustment if so.

[0004] The existing feedback control systems used to address variable operating conditions suffer from the following major drawbacks: They require an excessive number of sensors, requiring at least one flow sensor and one temperature sensor for each component, and their structure is relatively complex. The controller in the feedback control system must integrate all signals to make the correct decision. Failure of any component can cause the feedback system to fail, preventing timely adjustments to the cooling system and exposing the equipment to overheating. Furthermore, the feedback system requires temperature changes to reach a certain threshold before triggering adjustments. For smaller temperature changes, the feedback control system fails and only activates when the temperature reaches the threshold, risking temporary localized overheating. Utility Model Content

[0005] The purpose of the utility model is to use a temperature control valve to replace the feedback adjustment system in the prior art, so as to realize adaptive adjustment of the flow of each flow channel under multiple parallel working conditions after the working conditions change, and meet the demand for heat exchange medium flow when various parts of the equipment are dissipating heat.

[0006] The technical solution of the utility model is: to provide a flow adaptive regulation system under multiple parallel working conditions, the flow adaptive regulation system under multiple parallel working conditions comprises: a temperature control valve and a flow channel;

[0007] The flow channels are distributed in parallel, and the temperature control valve is arranged on the flow channel. The temperature control valve is located at one end of the water outlet of the flow channel and is used to adjust the flow rate of the heat exchange medium according to the temperature of the heat exchange medium flowing into the flow channel;

[0008] A thermally sensitive actuator structure is arranged inside the temperature control valve, and the thermally sensitive actuator structure includes a phase-change wax storage structure and a temperature-sensitive action component. One end of the temperature-sensitive action component is fixed to the top of the inner valve body of the temperature control valve, and the other end is fixedly connected to the phase-change wax storage structure. The temperature-sensitive action component is used to adjust the position of the phase-change wax storage structure by telescoping, and the phase-change wax storage structure is used to adjust the flow area of ​​the temperature control valve by moving up and down.

[0009] Furthermore, a cavity for storing heat-sensitive materials is provided inside the phase-change wax storage structure, and paraffin is provided in the cavity of the phase-change wax storage structure;

[0010] A cavity is left inside the temperature-sensitive action component, and the cavity of the temperature-sensitive action component is communicated with the cavity of the phase-change wax storage structure. The paraffin wax will enter the cavity of the temperature-sensitive action component after being liquefied by heat.

[0011] Furthermore, the temperature-sensitive action component is a structure with a telescopic function.

[0012] Furthermore, the temperature control valve further includes a water inlet and a water outlet, and the water inlet and the water outlet are symmetrically arranged on both sides of the temperature control valve.

[0013] Furthermore, a heat exchange medium is arranged inside the flow channel. When the heat exchange medium is at a high temperature, the volume of the paraffin inside the phase-change wax storage structure is larger, the temperature-sensitive action component is in an extended state, the phase-change wax storage structure is located away from the water inlet and outlet, and the flow area of ​​the temperature control valve is larger. When the heat exchange medium is at a low temperature, the volume of the paraffin inside the phase-change wax storage structure is smaller, the temperature-sensitive action component is in a contracted state, the phase-change wax storage structure is located close to the water inlet and outlet, and the flow area of ​​the temperature control valve is smaller.

[0014] Furthermore, the flow adaptive regulation system under multi-parallel working conditions includes N flow channels, and the N flow channels are arranged in parallel, where N is a positive integer.

[0015] Furthermore, the number of the temperature control valves is the same as the number of the flow channels, and a temperature control valve is provided on any of the flow channels.

[0016] Furthermore, the N flow channels are arranged between the same set of water inlets and water outlets.

[0017] The beneficial effects of the utility model are:

[0018] First, the technical solution of the present invention uses a temperature-controlled valve with a heat-sensitive material inside to regulate the flow of a heat exchange medium. The temperature-controlled valve utilizes the thermal expansion and contraction properties of the heat-sensitive material to control the opening of its internal passageway. The temperature-controlled valve's opening changes with the temperature of the heat exchange medium, without being restricted by a temperature threshold. Furthermore, the opening changes rapidly, allowing for timely flow adjustment in response to even small temperature changes. Conventional feedback control systems, consisting of a sensor, a controller, and a solenoid valve, require a sensor to detect the temperature of the heat exchange medium and transmit a temperature signal to the controller, which then adjusts the opening of the solenoid valve based on the temperature signal to control the flow of the heat exchange medium. These conventional methods are slow and subject to threshold limits. The technical solution of the present invention directly utilizes the properties of the heat-sensitive material to regulate the flow, improving the speed of regulation, achieving real-time performance, and achieving higher regulation accuracy. The technical solution of the present invention uses a temperature-controlled valve to replace the conventional feedback control system, requiring fewer components, resulting in a simpler structure and lower cost.

[0019] Second, the technical solution in the present invention sets up each flow channel in parallel, and each parallel flow channel is connected to the same water inlet pipe. When the working conditions change during the heat exchange process, each flow channel can be automatically allocated to different flow rates of heat exchange medium according to the opening size of the temperature control valve, so that the heat exchange speed of the heat exchange area with high temperature in the equipment is fast, and the heat exchange speed of the heat exchange area with low temperature is slow, thereby realizing adaptive adjustment of the flow of each flow channel under multiple parallel working conditions, meeting the demand for heat exchange medium flow when various parts of the equipment are dissipating heat. The technical solution of the present invention reasonably adjusts the flow according to the current heat exchange medium temperature, which can not only quickly cool down the area with excessively high temperature in the equipment, but also avoid the problem of redundant heat exchange medium flow in the low-temperature area, thereby ensuring the overall efficient heat dissipation of the equipment.

[0020] Third, in the technical solution of the present invention, each flow channel is responsible for heat exchange for different heat exchange areas, and the temperature control valves for adjusting the flow are independent of each other. When a part of the temperature control valves fails, it will not affect the heat exchange work of other flow channels. During the operation of the equipment, the heat exchange work of the entire equipment will not be stagnant due to the failure of some temperature control valves, avoiding major risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a block diagram of a flow adaptive regulation system under multiple parallel working conditions according to an embodiment of the present utility model;

[0022] Figure 2 It is a schematic structural diagram of a temperature control valve according to an embodiment of the present utility model.

[0023] Among them, 1-temperature control valve, 11-water inlet, 12-water outlet, 13-thermal execution structure, 131-phase change wax storage structure, 132-temperature sensing action component, 2-flow channel. DETAILED DESCRIPTION

[0024] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0026] like Figures 1 to 2 As shown, this embodiment provides a flow adaptive regulation system under multiple parallel working conditions, which is used to dissipate heat for equipment that requires heat dissipation. The flow adaptive regulation system under multiple parallel working conditions includes: a temperature control valve 1 and a flow channel 2.

[0027] The temperature control valve 1 is arranged on the flow channel 2, and the temperature control valve 1 is located at one end of the water outlet of the flow channel 2. The temperature control valve 1 is used to adjust the flow rate of the heat exchange medium, and the flow channel 2 is used to transport the heat exchange medium.

[0028] The section between the water inlet and thermostatic valve 1 of flow channel 2 is installed in the heat exchange area of ​​the equipment and is used for heat exchange. The heat exchange medium enters flow channel 2 through the water inlet and flows through the area of ​​the equipment where heat exchange is required, discharging the heat generated there before being discharged through the water outlet. During this process, thermostatic valve 1 adjusts the flow rate of the heat exchange medium based on its temperature.

[0029] like Figure 2 As shown, a water inlet 11 and a water outlet 12 are symmetrically arranged on both sides of the temperature control valve 1, and a thermally sensitive actuator structure 13 is arranged inside. The thermally sensitive actuator structure 13 is fixed on the top of the inner valve body of the temperature control valve 1, and is used to adjust the flow rate of the heat exchange medium according to the temperature of the heat exchange medium flowing into the temperature control valve 1.

[0030] The thermosensitive execution structure 13 includes a phase-change wax storage structure 131 and a temperature-sensitive action component 132. The temperature-sensitive action component 132 is a structure with a telescopic function. One end of the temperature-sensitive action component 132 is fixed to the top of the inner valve body of the temperature-controlled valve 1 through a connecting piece, and the other end is fixedly connected to the phase-change wax storage structure 131. The phase-change wax storage structure 131 is located near the water inlet and outlet.

[0031] A cavity for storing thermosensitive materials is provided inside the phase-change wax storage structure 131 . The cavity is filled with paraffin wax, which is a thermosensitive material with a high expansion coefficient and a low enthalpy value and can respond to slight temperature changes.

[0032] A cavity is left inside the temperature-sensing action component 132, and the cavity of the temperature-sensing action component 132 is connected to the cavity of the phase-change wax storage structure 131 for storing heat-sensitive materials. The paraffin inside the phase-change wax storage structure 131 will liquefy after being heated and enter the temperature-sensing action component 132; when the temperature of the heat exchange medium rises, the volume of the paraffin inside the phase-change wax storage structure 131 increases, pushing the temperature-sensing action component 132 to extend, driving the phase-change wax storage structure 131 below to move downward, so that the phase-change wax storage structure 131 is away from the water inlet and outlet The position of the temperature control valve 1 increases the flow area of ​​the temperature control valve 1 (the opening of the temperature control valve 1 becomes larger), so that the flow rate of the heat exchange medium in the flow channel 2 increases; when the temperature of the heat exchange medium decreases, the volume of the paraffin inside the phase change wax storage structure 131 becomes smaller, and the temperature sensing action component 132 contracts, driving the phase change wax storage structure 131 below to move upward, so that the phase change wax storage structure 131 is close to the position of the inlet and outlet, reducing the flow area of ​​the temperature control valve 1 (the opening of the temperature control valve 1 becomes smaller), so that the flow rate of the heat exchange medium in the flow channel 2 decreases.

[0033] like Figure 2 As shown, when the temperature of the heat exchange medium is low, the phase change wax storage structure 131 is located near the water inlet and outlet, and the flow area of ​​the temperature control valve 1 is small at this time. After the temperature of the heat exchange medium rises, the phase change wax storage structure 131 will move downward, away from the position of the water inlet and outlet (that is, offset from the position of the water inlet and outlet), and the flow area of ​​the temperature control valve 1 increases.

[0034] In this embodiment, a thermosensitive material is incorporated into the thermostatic valve 1. When the temperature of the heat exchange medium in the flow channel 2 changes, the material changes accordingly, enabling the thermostatic valve 1 to adaptively adjust the flow rate based on the varying temperatures of the heat exchange medium. The thermosensitive material's rapid deformation speed allows the valve 1's opening to change at a rate comparable to the material's deformation speed, resulting in a relatively rapid adjustment of the heat exchange medium's flow rate. Furthermore, because the thermosensitive material deforms in response to even small temperature changes, the valve 1 is not restricted by a temperature threshold when adjusting the heat exchange medium, resulting in greater precision in adjustment.

[0035] The temperature control valve 1 controls the temperature of the heat exchange area of ​​the equipment by adjusting the flow rate of the heat exchange medium in the flow channel 2; when the temperature of the heat exchange area rises, the temperature of the heat exchange medium passing through the heat exchange area rises, and this high-temperature heat exchange medium causes the opening of the control valve 1 to become larger after passing through the control valve 1. When the opening of the control valve 1 becomes larger, the flow rate of the heat exchange medium becomes larger. The heat exchange medium with a large flow rate quickly exchanges the heat of the heat exchange area, causing the temperature of the heat exchange area to decrease. When the temperature of the heat exchange area decreases, the temperature of the heat exchange medium also decreases. When the heat exchange medium with a lowered temperature passes through the temperature control valve 1, the opening of the control valve 1 becomes smaller, and the flow rate of the heat exchange medium also decreases.

[0036] In the flow adaptive regulation system under multi-parallel working conditions, there are N flow channels 2, where N is a positive integer, and the N flow channels 2 are distributed in parallel, such as Figure 1 As shown, in this embodiment, there are five flow channels 2, and each flow channel 2 is provided with a temperature control valve 1, so there are also five temperature control valves 1. The water inlets of the five parallel flow channels 2 are connected to the same water inlet pipe. The heat exchange medium is discharged from the water inlet pipe into each flow channel 2 for heat exchange, and is discharged from the water outlet of the flow channel 2 after the heat exchange is completed.

[0037] Because N flow channels 2 are arranged in parallel, and the water inlets of the N flow channels 2 are all connected to the same water inlet pipe, when the temperatures of the heat exchange medium in the N flow channels 2 are different, different flow channels 2 are allocated different flows of heat exchange medium. When the heat dissipation of any heat dissipation area of ​​the equipment is large, the temperature of that area is high, the temperature control valve 1 on the corresponding flow channel 2 is wide open, and the flow rate of that flow channel 2 is large. When the heat dissipation of any heat dissipation area of ​​the equipment is small, the temperature of that area is low, the temperature control valve 1 on the corresponding flow channel 2 is narrowed, and the flow rate of that flow channel 2 is small. The changes in the temperature control valve 1 enable the flow adaptive regulation system under multi-parallel working conditions to automatically distribute the heat exchange medium flow according to the different working conditions of the equipment, providing a large flow of heat exchange medium to the area with severe heating. When the working conditions change, the temperature control valve 1 can make timely adjustments to ensure efficient heat dissipation of the equipment.

[0038] In summary, the adaptive flow control system under multi-parallel working conditions of the present invention includes: a temperature control valve 1 and a flow channel 2; the temperature control valve 1 is arranged on the flow channel 2, and the temperature control valve 1 is located at one end of the water outlet of the flow channel 2. There are N flow channels 2 in total, and N flow channels 2 are arranged in parallel (N is a positive integer). The number of temperature control valves 1 is the same as the number of flow channels 2, and a temperature control valve 1 is provided on any flow channel 2. The temperature control valve 1 is used to adjust the flow of the heat exchange medium; when the temperature of the heat exchange medium in the flow channel 2 increases, the opening of the temperature control valve 1 becomes larger, and the flow of the heat exchange medium increases; when the temperature of the heat exchange medium decreases, the opening of the temperature control valve 1 becomes smaller, and the flow of the heat exchange medium decreases. The adaptive flow control system under multi-parallel working conditions of the present invention can automatically, quickly and accurately adjust the flow of the heat exchange medium according to the temperature, and meet the heat dissipation requirements of various parts of the equipment when the working conditions change.

[0039] In this utility model, the terms "install," "connect," "connect," and "fix" should be understood in a broad sense. For example, "connect" can refer to a fixed connection, a detachable connection, or an integral connection; "connected" can refer to a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0040] The shapes of the various components in the drawings are schematic, and certain differences from their actual shapes are not excluded. The drawings are only used to illustrate the principles of the present invention and are not intended to limit the present invention.

[0041] Although the present invention is disclosed in detail with reference to the accompanying drawings, it should be understood that these descriptions are merely exemplary and are not intended to limit the application of the present invention. The scope of protection of the present invention is defined by the appended claims and includes various modifications, variations, and equivalents made to the present invention without departing from the scope and spirit of the present invention.

Claims

1. A flow adaptive regulation system under multiple parallel working conditions, characterized in that: The flow adaptive regulation system under multiple parallel working conditions comprises: a temperature control valve (1) and a flow channel (2); The flow channels (2) are distributed in parallel, and the temperature control valve (1) is arranged on the flow channel (2). The temperature control valve (1) is located at one end of the water outlet of the flow channel (2) and is used to adjust the flow rate of the heat exchange medium according to the temperature of the heat exchange medium flowing into the flow channel; A thermally sensitive actuator structure (13) is provided inside the temperature control valve (1), and the thermally sensitive actuator structure (13) comprises a phase-change wax storage structure (131) and a temperature-sensitive actuating component (132). One end of the temperature-sensitive actuating component (132) is fixed to the top of the valve body inside the temperature control valve (1), and the other end is fixedly connected to the phase-change wax storage structure (131). The temperature-sensitive actuating component (132) is used to adjust the position of the phase-change wax storage structure (131) by telescoping, and the phase-change wax storage structure (131) is used to adjust the flow area of ​​the temperature control valve (1) by moving up and down.

2. The flow adaptive regulation system under multiple parallel working conditions as claimed in claim 1, characterized in that: A cavity for storing heat-sensitive materials is provided inside the phase-change wax storage structure (131), and paraffin is provided in the cavity of the phase-change wax storage structure (131); A cavity is left inside the temperature-sensitive action component (132), and the cavity of the temperature-sensitive action component (132) is connected to the cavity of the phase-change wax storage structure (131). The paraffin wax will enter the cavity of the temperature-sensitive action component (132) after being liquefied by heat.

3. The flow adaptive regulation system under multiple parallel working conditions as claimed in claim 2, characterized in that: The temperature-sensitive action component (132) is a structure with a telescopic function.

4. The flow adaptive regulation system under multiple parallel working conditions as claimed in claim 3 is characterized in that: The temperature control valve (1) further comprises a water inlet (11) and a water outlet (12), wherein the water inlet (11) and the water outlet (12) are symmetrically arranged on both sides of the temperature control valve (1).

5. The flow adaptive regulation system under multiple parallel working conditions as claimed in claim 4, characterized in that: A heat exchange medium is arranged inside the flow channel (2). When the heat exchange medium is at a high temperature, the volume of the paraffin inside the phase-change wax storage structure (131) is large, the temperature-sensitive action component (132) is in an extended state, the phase-change wax storage structure (131) is located far away from the water inlet and outlet, and the flow area of ​​the temperature control valve (1) is large. When the heat exchange medium is at a low temperature, the volume of the paraffin inside the phase-change wax storage structure (131) is small, the temperature-sensitive action component (132) is in a contracted state, the phase-change wax storage structure (131) is located close to the water inlet and outlet, and the flow area of ​​the temperature control valve (1) is small.

6. The flow adaptive regulation system under multiple parallel working conditions as claimed in claim 1, characterized in that: The flow adaptive regulation system under multiple parallel working conditions comprises N flow channels (2), and the N flow channels (2) are arranged in parallel, wherein N is a positive integer.

7. The flow adaptive regulation system under multiple parallel working conditions as claimed in claim 6, characterized in that: The number of the temperature control valves (1) is the same as the number of the flow channels (2), and a temperature control valve (1) is provided on any of the flow channels (2).

8. The flow adaptive regulation system under multiple parallel working conditions as claimed in claim 6, characterized in that: The N flow channels (2) are arranged between the same group of water inlets and water outlets.

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