Liquid accumulator capable of tolerating overload acceleration in any direction and use method

Abstract

The invention discloses a liquid storage device capable of tolerating overload acceleration in any direction. The liquid storage device comprises a shell assembly and an evaporation pressurization assembly. The shell assembly comprises a first-stage air filtering capillary core, a second-stage liquid channel capillary core and an outer shell. A working medium outlet is formed in the shell assembly, one end of the working medium outlet is completely sealed by the second-stage liquid channel capillary core, the other end of the working medium outlet is connected with an outdoor unit pump opening, a liquid working medium sequentially enters the first-stage air filtering capillary core and the second-stage liquid channel capillary core under the action of capillary force, and the liquid working medium is sucked out through pump end pressure; the evaporation pressurization assembly comprises a stainless steel sleeve, a heater and a pressurization capillary core; the heater is installed in the stainless steel sleeve, the pressurizing capillary core wraps the stainless steel sleeve, and after the heater is started, a liquid working medium in the pressurizing capillary core evaporates and escapes to enter an inner cavity of the shell assembly. On the basis that gas-liquid two-phase working media are stored, under the mechanical conditions of overload acceleration and random vibration in any direction, pure liquid working media can be normally provided for a fluid loop.

Description

Technical Field

[0001] This invention belongs to the technical field of aerospace power, liquid transportation and thermal control equipment, and specifically relates to a liquid reservoir that can withstand overload acceleration in any direction and its usage method. Background Technology

[0002] With the development of science and technology and the design of aerospace equipment in the new era, the control and performance requirements of spacecraft are gradually increasing, requiring high reliability in long-term, multi-interference, and cross-environmental environments. This involves multiple fields such as power, liquid transport, and thermal control equipment. During operation, spacecraft must withstand vibration and acceleration changes in their environment. The liquid reservoir is one of the key factors for the long-term, high-efficiency operation of its power transport, liquid transport, and thermal control circulation equipment. Ensuring that the stored and flowing liquid working fluid maintains reliable liquid pumping capability in complex flight environments is the focus of liquid reservoir design. Traditional liquid reservoir structures are very simple, usually using gravity difference or centrifugal force to separate gas-liquid mixtures. However, due to the high activity of gas molecules, a small amount of air bubbles are often mixed in the liquid pumped out of the reservoir. Incomplete gas-liquid separation can cause gas accumulation in the transport pipeline, forming a gas hammer effect during the pumping cycle and damaging downstream equipment. Under vibration and acceleration changes, the gas and liquid in the liquid reservoir are redistributed or even highly mixed with the flight attitude and acceleration. The pumped out liquid working fluid cannot guarantee a stable and reliable degassed liquid working fluid, which can cause major accidents to the spacecraft. Therefore, a new type of liquid reservoir is needed that has good resistance to random vibration and acceleration overload problems, has extremely high stability in the storage and output of liquid working fluid, and can output continuous gas-liquid working fluid under different flight attitudes. Summary of the Invention

[0003] The purpose of this invention is to overcome the aforementioned deficiencies and provide a liquid reservoir and its usage method that can withstand overload acceleration in any direction, solving the problem of adaptability to overload acceleration in pump-driven two-phase fluid circuits used in the aerospace field. Based on the storage of a gas-liquid two-phase working fluid, this invention can normally provide pure liquid working fluid to the fluid circuit under mechanical conditions of overload acceleration and random vibration in any direction, and has high application value in the aerospace field.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solution: This invention discloses a liquid reservoir for a two-phase fluid circuit capable of withstanding overload acceleration in any direction. Based on the capillary structure gas-liquid separation principle, this liquid reservoir, while storing a two-phase gas-liquid working fluid, can normally supply pure liquid working fluid to the fluid circuit under mechanical conditions of overload acceleration and random vibration in any direction.

[0005] A liquid reservoir that can withstand overload acceleration in any direction includes: a housing assembly and an evaporation pressurization assembly; The housing assembly includes a primary gas filter capillary, a secondary liquid channel capillary, and an outer shell arranged from the inside out. The inner cavity of the housing assembly stores the liquid working fluid. The housing assembly is equipped with a working fluid outlet. One end of the working fluid outlet is completely sealed by the secondary liquid channel capillary core, and the other end is connected to the pump port of the external unit. The liquid working fluid in the inner cavity of the housing assembly enters the primary air filter capillary core and the secondary liquid channel capillary core in sequence under the action of capillary force. The pump end pressure at the working fluid outlet draws the liquid working fluid out from the secondary liquid channel capillary core. The evaporation pressurization component is located inside the shell assembly and includes a stainless steel sleeve, a heater, and a pressurizing capillary core. The heater is installed inside the stainless steel sleeve, and the pressurizing capillary core is wrapped around the outside of the stainless steel sleeve. The liquid working fluid in the inner cavity of the shell assembly enters the pressurizing capillary core under the action of capillary force. The heater is activated when the pressure in the inner cavity of the shell assembly is lower than the saturated vapor pressure of the liquid working fluid at the target temperature. The liquid working fluid in the pressurizing capillary core evaporates and escapes into the inner cavity of the shell assembly, thereby achieving dynamic pressure balance inside the liquid reservoir.

[0006] Furthermore, the pore size of the secondary liquid channel capillary is larger than that of the primary gas filter capillary, while the thickness of the secondary liquid channel capillary is smaller than that of the primary gas filter capillary. The outer shell is a metal shell.

[0007] Furthermore, a pressure gauge is also installed inside the housing assembly cavity; the pressure gauge is used to monitor the pressure inside the housing assembly cavity.

[0008] Furthermore, this also includes refrigerators; The cooler is attached to the outer wall of the outer casing and is used to remove gaseous working fluid impurities from the capillary core of the secondary liquid channel.

[0009] Furthermore, it also includes a working fluid inlet, which connects the inside and outside of the housing assembly. During reflux replenishment, the liquid working fluid enters the inner cavity of the housing assembly through the working fluid inlet.

[0010] Furthermore, during the initial liquid replenishment phase, the gas inside the housing assembly is first expelled, and then pure liquid working fluid is pumped in.

[0011] Furthermore, the structures of the primary air filtration capillary and the secondary liquid channel capillary satisfy the following formula: ;

[0012] in, P cap1 for one The maximum capillary force that a single capillary wick can provide, Pcap2 The maximum capillary force that a secondary capillary wick can provide. The surface tension of the liquid working fluid, θ 1 represents the contact angle between the liquid working fluid and the primary capillary wick. θ 2 represents the contact angle between the liquid working fluid and the secondary capillary wick. , These are the effective pore sizes of the primary and secondary capillary wicks, respectively. For the resultant acceleration, The density of the liquid working fluid. The height at the outlet of the reservoir (working fluid outlet) in the opposite direction of acceleration. The height at the gas-liquid interface inside the reservoir, in the direction of the reverse acceleration.

[0013] Furthermore, the maximum cooling capacity of the refrigerator and longest cooling time The following relationship must be satisfied:

[0014] in, It is the sum of the internal cavities of the primary and secondary capillary wicks. The latent heat of vaporization of the liquid working fluid. The density of the liquid working fluid.

[0015] Furthermore, the maximum power of the heater The following relationship must be satisfied:

[0016] in, ρ v This represents the saturated vapor density at the corresponding pressure. Q The mass flow rate of the liquid discharged from the reservoir. The density of the liquid working fluid. H fg It is the latent heat of vaporization of the liquid working fluid.

[0017] Furthermore, the structure of the pressurized capillary wick satisfies the following relationship:

[0018]

[0019] in, P cap3 for one The maximum capillary force that a single capillary wick can provide, The surface tension of the liquid working fluid, θ 3 represents the contact angle between the liquid working fluid and the pressurized capillary core. d3 represents the effective pore size of the pressurized capillary core. For the resultant acceleration, The density of the liquid working fluid. The height at the outlet of the reservoir in the opposite direction of acceleration. The height of the capillary core in the direction of reverse acceleration is the height of the capillary core. This is the maximum power of the heater. μ The viscosity coefficient of the liquid. The distance the liquid working fluid travels through the pressurized capillary core. To and The corresponding cross-sectional area of ​​the capillary wick, To increase the permeability of the capillary wick, φ 3 represents the open porosity of the pressurized capillary core.

[0020] The above-mentioned method of using a liquid reservoir that can withstand overload acceleration in any direction includes: The liquid working fluid in the inner cavity of the housing assembly enters the primary gas filter capillary and the secondary liquid channel capillary in sequence under the action of capillary force. The pump end pressure at the working fluid outlet draws the liquid working fluid out from the secondary liquid channel capillary. The pressure inside the housing assembly decreases as the liquid working fluid decreases. When the pressure inside the housing assembly is lower than the saturated vapor pressure at the target temperature of the liquid working fluid (the temperature control value of the reservoir), the heater is activated, and the liquid working fluid drawn into the pressurized capillary evaporates and escapes into the housing assembly, achieving dynamic pressure balance inside the reservoir.

[0021] Furthermore, the above-mentioned usage methods also include: In the initial stage or under oscillating conditions, the cooler attached to the outer wall of the outer casing is turned on, causing the gaseous working fluid in the capillary wick of the secondary liquid channel to recondense and remove impurities. The initial stage refers to the period when the circuit just begins to operate, specifically the period when the liquid working fluid in the capillary wick of the secondary liquid channel re-vaporizes and produces a small number of bubbles. The specific duration needs to be determined based on the actual test conditions.

[0022] Compared with the prior art, the present invention has at least one of the following advantages: (1) The liquid storage device of the present invention adopts a two-stage capillary core pump suction structure, which ensures gas-liquid separation function while also having a high permeability conveying capacity. The capillary pump force is much greater than gravity, and it has good resistance to directional overload, random vibration and other conditions.

[0023] (2) The liquid storage device of the present invention adopts an evaporation pressurization component to realize automatic pressure balance design, which can realize automatic adjustment and control of gas-liquid separation and can stably provide degassing liquid working fluid to the outside.

[0024] (3) This invention provides design formulas that key components such as capillary wick, cooler, and heater must meet, which has important guiding significance for the design and research of liquid storage tanks that can output continuous gas-liquid working fluid under different flight attitudes.

[0025] (4) The liquid storage device of the present invention has a simple structure, is easy to manufacture and maintain, and has the advantages of low economic cost and reliable performance.

[0026] (5) The liquid storage device of the present invention has strong scalability and can be widely used in various scenarios such as aerospace power, liquid transportation and thermal control equipment. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of an anti-gravity liquid storage device for automatic control of gas-liquid separation according to the present invention; Wherein: 1-secondary liquid channel capillary core, 2-primary gas filter capillary core, 3-refrigerator, 4-liquid working fluid, 5-working fluid outlet, 6-stainless steel sleeve, 7-heater, 8-pressurizing capillary core, 9-outer shell, 10-pressure gauge, 11-working fluid inlet. Detailed Implementation

[0028] The features and advantages of the present invention will become clearer and more explicit from the following detailed description.

[0029] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments. Although various aspects of embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated otherwise.

[0030] This invention provides a liquid reservoir for a two-phase fluid circuit that can withstand overload acceleration in any direction. Based on the capillary structure gas-liquid separation principle, this liquid reservoir, while storing a two-phase gas-liquid working fluid, can normally supply pure liquid working fluid to the fluid circuit under mechanical conditions of overload acceleration and random vibration in any direction.

[0031] The present invention provides a liquid reservoir for a two-phase fluid circuit that can withstand overload acceleration in any direction, comprising an evaporation pressurization assembly and a housing assembly.

[0032] The evaporation pressurization assembly consists of a stainless steel sleeve, a heater housed inside the stainless steel sleeve, and a pressurizing capillary covering the outside of the stainless steel sleeve. The sleeve separates the heater from the inside of the liquid reservoir to prevent damage to the device.

[0033] The housing assembly consists of a primary air filter capillary core, a secondary liquid channel capillary core, and an outer shell, from the inside out. Multiple coolers are distributed close to the surface of the outer shell. The outer shell is also equipped with a working fluid outlet and a working fluid inlet. One end of the working fluid outlet is completely sealed by the secondary liquid channel capillary core, and the other end is connected to the pump port of the outdoor unit through a pipeline. One end of the working fluid inlet is inside the liquid receiver, and the other end is outside the liquid receiver. The working fluid inlet is not entirely necessary. For non-recirculation replenishment, the working fluid outlet can be shared.

[0034] The working principle of the aforementioned liquid reservoir is as follows: the reservoir stores a liquid working fluid, and the shell assembly has a three-layer structure. The innermost layer, in contact with the liquid working fluid, is the primary gas filter capillary. Regardless of its orientation, the liquid can enter and wet the primary gas filter capillary under capillary force in any area where it comes into contact with the capillary. The capillary is completely wetted by the liquid, and the surface tension of the liquid working fluid causes the gas-liquid contact surface of the capillary to form a concave liquid surface. The liquid inside the capillary is separated from the gaseous working fluid present in the reservoir by the concave liquid surface. Maintaining the wettability of the capillary can maintain stable gas-liquid separation. The secondary liquid channel capillary has larger pores and a smaller thickness than the primary gas filter capillary. As a liquid channel in the liquid core, it provides lower flow resistance and greater permeability for the liquid working fluid. The outermost layer is a metal shell, which provides mechanical strength to the entire reservoir and conducts heat from the secondary liquid channel capillary. The outer casing also features a working fluid outlet and a working fluid inlet. The working fluid inlet serves as the external channel for replenishing the liquid working fluid to the reservoir, while the working fluid outlet is sealed by a secondary liquid channel capillary. When a pump port is connected to the external working fluid outlet, the pump pressure draws the working fluid out of the secondary liquid channel capillary. Under the influence of capillary pressure difference, the liquid working fluid in the secondary liquid channel capillary is replenished from the primary gas filter capillary, continuously flowing from the reservoir cavity into the primary gas filter capillary. As the liquid working fluid is continuously pumped out, the amount inside the reservoir rapidly decreases, reducing the internal pressure and making it difficult for the liquid working fluid to enter the capillary. Simultaneously, the lower gas pressure facilitates the conversion of the liquid working fluid into a gaseous state, resulting in a mixture of liquid and gas in the outflowing liquid working fluid. At this point, further control is implemented from both pressurization and degassing perspectives. An evaporation pressurization assembly and a pressure gauge are installed inside the liquid reservoir. The evaporation pressurization assembly consists of a stainless steel sleeve, a heater installed inside the stainless steel sleeve, and a pressurizing capillary core covering the outside of the stainless steel sleeve. The pressurizing capillary core absorbs the liquid working fluid inside the liquid reservoir. The sleeve separates the heater from the inside of the liquid reservoir to prevent damage to the components. The pressure gauge monitors the pressure changes inside the liquid reservoir. When the pressure gauge detects that the pressure inside the liquid reservoir is lower than the saturated vapor pressure at the target temperature of the working fluid, the heater inside the stainless steel sleeve is activated. The heat from the heater is transferred to the stainless steel sleeve, and the temperature of the pressurizing capillary core wetted on the stainless steel sleeve rises. The temperature of the liquid working fluid in the capillary core rises, gradually generating a superheated fluid in the capillary core, which then evaporates and escapes into the liquid reservoir cavity. The pressurizing capillary core can also continuously draw liquid from the liquid reservoir to replenish the liquid. As more and more gas evaporates, the pressure inside the liquid reservoir quickly recovers. Once the pressure gauge detects that the pressure inside the liquid reservoir has recovered, heating stops. The continuous monitoring-pressurization process keeps the pressure inside the liquid reservoir dynamically balanced.

[0035] Multiple coolers are tightly attached to the metal outer casing. In the initial stage or under oscillating conditions, the liquid working fluid in the capillary wick of the secondary liquid channel may re-vaporize, generating a small number of bubbles mixed in with the liquid working fluid. The coolers can provide a lower temperature to cause the small amount of gaseous working fluid in the capillary wick of the secondary liquid channel to re-condense, removing the gaseous working fluid mixture.

[0036] Therefore, through the above technical solutions, under any overload and random vibration conditions in any direction, the liquid working fluid can always be replenished and continuously supplied through the liquid core, and the working fluid outlet can always maintain a continuous and stable degassing liquid flow.

[0037] Preferably, during the initial liquid replenishment stage, venting can be performed first, followed by pumping in pure liquid working fluid to avoid interference from other contaminants.

[0038] To further explain the design principle of an anti-gravity liquid storage device for automatic gas-liquid separation, the following detailed explanation is provided: A liquid reservoir for a two-phase fluid circuit capable of withstanding overload acceleration in any direction should satisfy Bernoulli's equation for viscous fluids when stably discharging liquid:

[0039] in, The velocity of the liquid at the gas-liquid interface inside the reservoir; The height in the opposite acceleration direction at the gas-liquid interface inside the liquid reservoir; Pressure at the gas-liquid interface inside the liquid reservoir; The flow velocity of the liquid at the outlet of the reservoir; The height at the outlet of the reservoir in the direction of reverse acceleration; Pressure at the outlet of the reservoir; The resultant acceleration includes the vector superposition of inertial forces under vibration or overload. The density of the liquid working fluid; This refers to the mechanical energy lost by the liquid as it flows from the gas-liquid interface inside the reservoir to the reservoir outlet.

[0040] Considering the combined acceleration, the pumping force required to lift the liquid working fluid from the extreme position to the liquid outlet is:

[0041] The liquid working fluid is transported by the capillary pumping force of the primary capillary core, therefore:

[0042] This is the maximum capillary force that a primary capillary wick can provide.

[0043] in: The inflow velocity at the gas-liquid interface inside the reservoir is:

[0044] The outflow velocity at the reservoir outlet is:

[0045] in, The mass flow rate of the liquid discharged from the reservoir. This represents the cross-sectional area of ​​the gas-liquid interface inside the liquid reservoir. This is the cross-sectional area of ​​the working fluid outlet.

[0046] The maximum capillary force that a primary capillary wick can provide is:

[0047] The contact angle between the liquid working fluid and the primary capillary wick is... The effective pore size of the primary capillary core is The surface tension of the liquid working fluid is Furthermore, the accurate value of the capillary pump force can be characterized and verified experimentally.

[0048] The mechanical energy lost by the liquid as it flows from the gas-liquid interface inside the reservoir to the reservoir outlet is:

[0049] in The viscosity coefficient of the liquid; , These represent the distances the liquid travels along the primary and secondary capillary wicks, respectively. and Corresponding to , The cross-sectional area at that point; and The permeability of the primary and secondary capillary cores are respectively:

[0050]

[0051] in, , These are the effective pore sizes of the primary and secondary capillary wicks, respectively. , These are the open porosity of the primary and secondary capillary cores, respectively.

[0052] Furthermore, The accurate value can be verified through experiments.

[0053] At the initial moment of liquid discharge from the reservoir, its primary and secondary capillary wicks should be filled with liquid. Based on Bernoulli's equation, the following relationship can be derived:

[0054]

[0055] If air bubbles appear in the primary and secondary capillary wicks due to strong transient processes such as vibration, they can be eliminated by cooling using a semiconductor refrigeration system. The maximum cooling power of the semiconductor refrigeration system... and longest cooling time The following relationship should be satisfied:

[0056] in, It is the sum of the internal cavities of the primary capillary and the secondary capillary; It is the latent heat of vaporization of the liquid working fluid.

[0057] During the drainage process, the internal pressure of the reservoir can be restored and kept constant by adding a capillary wick and a heater. To achieve this function, the maximum power of the heater is required. The following relationship should be satisfied:

[0058] This represents the saturated vapor density at the corresponding pressure.

[0059] To ensure that the heater can effectively vaporize the liquid, the pressurized capillary wick on its peripheral wall should always be filled with liquid, satisfying the following relationship:

[0060]

[0061] in, The height of the pressurized capillary core in the direction of reverse acceleration; These represent the distance the liquid travels along the pressurized capillary core; correspond The cross-sectional area; Permeability of pressurized capillary core: The effective pore size of the pressurized capillary core, Open porosity of the pressurized capillary core.

[0062] This invention's liquid reservoir utilizes the wicking principle of a capillary wick to achieve passive liquid transport, overcoming the drawback of acceleration preventing the directional transport of liquid working fluids and achieving high stability under vibration or overload conditions. This invention employs a two-stage functional capillary wick design, balancing gas-liquid separation and wicking capacity. Simultaneously, it utilizes automatic pressurization and balance regulation, along with subcooling degassing, to ensure high efficiency, reliability, and controllability of gas-liquid separation.

[0063] Example: like Figure 1 The liquid reservoir of the present invention includes an evaporation pressurization assembly and a housing assembly.

[0064] The evaporation pressurization assembly consists of a stainless steel sleeve 6, a heater 7 housed inside the stainless steel sleeve, and a pressurizing capillary core 8 covering the outside of the stainless steel sleeve. The stainless steel sleeve 6 separates the heater 7 from the inside of the liquid receiver to prevent damage to the components. Both ends of the stainless steel sleeve 6 are fixed to the outer shell 9. The stainless steel sleeve 6 passes through the primary filter capillary core 2 and the secondary liquid channel capillary core 1 for sealing. The shell assembly consists of the primary filter capillary core 2, the secondary liquid channel capillary core 1, and the outer shell 9 from the inside out. Multiple coolers 3 are distributed close to the surface of the outer shell 9. The outer shell 9 is also provided with a working fluid outlet 5 and a working fluid inlet 11. One end of the working fluid outlet 5 is completely sealed by the secondary liquid channel capillary core 1, and the other end is connected to the pump port of the outdoor unit through a pipeline. One end of the working fluid inlet 11 is inside the liquid receiver, and the other end is outside the liquid receiver. The working fluid inlet 11 is not entirely necessary. For non-reflux replenishment, the working fluid outlet 5 can be shared. When the pressure difference between the working medium outlet 5 and the liquid working medium 4 is not greater than the capillary pump force, the liquid working medium will flow to the working medium outlet 5 in the shell assembly according to the pressure difference. The heating rod keeps the internal and external pressures balanced according to the feedback control of the pressure gauge 10, ensuring the normal operation of the liquid reservoir. The cooler cools the outer shell 9 at a constant temperature, further ensuring that the capillary 1 in the secondary liquid channel delivers the thoroughly degassed fluid working medium.

[0065] The present invention has been described in detail above with reference to specific embodiments and exemplary examples; however, these descriptions should not be construed as limiting the present invention. Those skilled in the art will understand that various equivalent substitutions, modifications, or improvements can be made to the technical solutions and embodiments of the present invention without departing from the spirit and scope of the invention, and all such modifications and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the appended claims.

[0066] The contents not described in detail in this specification are common knowledge to those skilled in the art.

Claims

1. A liquid reservoir capable of withstanding overload acceleration in any direction, characterized in that, include: Housing assembly and evaporation pressurization assembly; The housing assembly includes a primary gas filter capillary (2), a secondary liquid channel capillary (1), and an outer shell (9) arranged from the inside out. The inner cavity of the housing assembly stores a liquid working fluid (4). The housing assembly is provided with a working medium outlet (5). One end of the working medium outlet (5) is completely closed by the secondary liquid channel capillary core (1), and the other end is connected to the pump port of the external unit. The liquid working medium (4) in the inner cavity of the housing assembly enters the primary filter capillary core (2) and the secondary liquid channel capillary core (1) in sequence under the action of capillary force. The pump end pressure at the working medium outlet (5) draws the liquid working medium (4) out from the secondary liquid channel capillary core (1). The evaporation pressurization assembly is located inside the shell assembly and includes a stainless steel sleeve (6), a heater (7), and a pressurization capillary core (8). The heater (7) is installed inside the stainless steel sleeve (6), and the pressurization capillary core (8) is covered outside the stainless steel sleeve (6). The liquid working medium (4) in the inner cavity of the shell assembly enters the pressurization capillary core (8) under the action of capillary force. The heater (7) is activated when the pressure in the inner cavity of the shell assembly is lower than the saturated vapor pressure of the liquid working medium (4) at the target temperature. The liquid working medium (4) in the pressurization capillary core (8) evaporates and escapes into the inner cavity of the shell assembly, thereby achieving dynamic balance of the internal pressure of the liquid reservoir.

2. A liquid reservoir capable of withstanding overload acceleration in any direction according to claim 1, characterized in that, The pore size of the secondary liquid channel capillary (1) is larger than that of the primary gas filter capillary (2), and the thickness of the secondary liquid channel capillary (1) is smaller than that of the primary gas filter capillary (2). The outer shell (9) is a metal shell.

3. A liquid reservoir capable of withstanding overload acceleration in any direction according to claim 1, characterized in that, A pressure gauge (10) is also provided in the inner cavity of the housing assembly; the pressure gauge (10) is used to monitor the pressure in the inner cavity of the housing assembly; It also includes the refrigerator (3); The cooler (3) is attached to the outer wall of the outer shell (9) to remove gaseous working fluid from the capillary core (1) of the secondary liquid channel.

4. A liquid reservoir capable of withstanding overload acceleration in any direction according to claim 1, characterized in that, It also includes a working fluid inlet (11), which connects the inside and outside of the shell assembly. The liquid working fluid (4) enters the inner cavity of the shell assembly from the working fluid inlet (11) during the reflux replenishment. During the initial liquid replenishment phase, the gas inside the housing assembly is first expelled, and then a pure liquid working fluid is pumped in.

5. A liquid reservoir capable of withstanding overload acceleration in any direction according to claim 1, characterized in that, The structures of the primary gas filtration capillary (2) and the secondary liquid channel capillary (1) satisfy the following formula: ； in, P cap1 for one The maximum capillary force that a single capillary wick can provide, P cap2 The maximum capillary force that a secondary capillary wick can provide. The surface tension of the liquid working fluid, θ 1 represents the contact angle between the liquid working fluid and the primary capillary wick. θ 2 represents the contact angle between the liquid working fluid and the secondary capillary wick. , These are the effective pore sizes of the primary and secondary capillary wicks, respectively. For the resultant acceleration, The density of the liquid working fluid. The height at the outlet of the reservoir in the opposite direction of acceleration. The height at the gas-liquid interface inside the reservoir, in the direction of the reverse acceleration.

6. A liquid reservoir capable of withstanding overload acceleration in any direction according to claim 3, characterized in that, Maximum cooling capacity of the cooler (3) and longest cooling time The following relationship must be satisfied: in, It is the sum of the internal cavities of the primary and secondary capillary wicks. The latent heat of vaporization of the liquid working fluid. The density of the liquid working fluid.

7. A liquid reservoir capable of withstanding overload acceleration in any direction according to claim 1, characterized in that, Maximum power of heater (7) The following relationship must be satisfied: in, ρ v This represents the saturated vapor density at the corresponding pressure. Q The mass flow rate of the liquid discharged from the reservoir. The density of the liquid working fluid. H fg It is the latent heat of vaporization of the liquid working fluid.

8. A liquid reservoir capable of withstanding overload acceleration in any direction according to claim 1, characterized in that, The structure of the pressurized capillary wick (8) satisfies the following relationship: in, P cap3 for one The maximum capillary force that a single capillary wick can provide, The surface tension of the liquid working fluid, θ 3 represents the contact angle between the liquid working fluid and the pressurized capillary core. d 3 represents the effective pore size of the pressurized capillary core. For the resultant acceleration, The density of the liquid working fluid. The height at the outlet of the reservoir in the opposite direction of acceleration. The height of the capillary core in the direction of reverse acceleration is the height of the capillary core. This is the maximum power of the heater. μ The viscosity coefficient of the liquid. The distance the liquid working fluid travels through the pressurized capillary core. To and The corresponding cross-sectional area of ​​the capillary wick, To increase the permeability of the capillary wick, φ 3 represents the open porosity of the pressurized capillary core.

9. A method of using a liquid reservoir capable of withstanding overload acceleration in any direction according to any one of claims 1-8, characterized in that, include: The liquid working medium (4) in the inner cavity of the housing assembly enters the primary gas filter capillary core (2) and the secondary liquid channel capillary core (1) in sequence under the action of capillary force. The pump end pressure at the working medium outlet (5) draws the liquid working medium (4) out of the secondary liquid channel capillary core (1). The pressure inside the housing assembly decreases as the liquid working medium (4) decreases. When the pressure inside the housing assembly is lower than the saturated vapor pressure of the liquid working medium (4) at the target temperature, the heater (7) is activated, and the liquid working medium (4) drawn into the pressurized capillary (8) evaporates and escapes into the housing assembly, thus achieving dynamic balance of the internal pressure of the liquid reservoir.

10. A method of using a liquid reservoir capable of withstanding overload acceleration in any direction according to claim 9, characterized in that, Also includes: In the initial stage or under oscillating conditions, the cooler (3) attached to the outer wall of the outer shell (9) is turned on, so that the gaseous working medium in the capillary core (1) of the secondary liquid channel is recondensed and the impurities of the gaseous working medium are removed.

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