Gas-liquid separator suitable for different flight attitude angles

Abstract

The utility model relates to a gas-liquid separator suitable for different flight attitude angles, which comprises a gas-liquid separator shell, an inlet is arranged at the upper part of the side surface of the gas-liquid separator shell, the inlet is sequentially connected with an inlet section and an inlet reducing section, and a liquid outlet is arranged at the lower part of the side surface of the gas-liquid separator shell; a conical support is arranged in the gas-liquid separator shell and fixedly connected with the bottom of the gas-liquid separator shell. The outer side surface of the conical bracket is covered with a semi-permeable membrane; a gas outlet is formed in the bottom of the gas-liquid separator shell and corresponds to the bottom of the conical support. According to the gas-liquid separator, the internal structure and the flow channel arrangement mode of the separator are optimized and improved by deeply analyzing the influence mechanism of the flight attitude angle change on the gas-liquid two-phase flow behavior and the separation effect, so that the high-efficiency gas-liquid separation efficiency can be kept no matter which attitude angle the aircraft is located, and the gas-liquid separation efficiency is improved. And the separation instability caused by the change of the flight attitude is effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of aerospace engineering, relates to an effective separation technology of gas-liquid mixture in an aircraft, and specifically relates to a gas-liquid separator suitable for different flight attitude angles. Background Art

[0002] With the rapid development of aerospace engineering, the efficient and stable operation of vapor compression cycle systems is a crucial factor in ensuring aircraft performance and safety. However, during extended flights or in complex and changing flight environments, the vapor compression cycle often produces a gas-liquid mixture, a problem that becomes increasingly important. Because aircraft undergo various attitude changes during missions, such as pitch, yaw, and roll, these changes can significantly alter the flow field characteristics within traditional gas-liquid separators, severely impacting their usability. Summary of the Invention

[0003] The utility model proposes a gas-liquid separator suitable for different flight attitude angles. By deeply analyzing the impact mechanism of flight attitude angle changes on the gas-liquid two-phase flow behavior and separation effect, the internal structure and flow channel layout of the separator are optimized and improved. The purpose is to achieve high gas-liquid separation performance regardless of the aircraft's attitude angle, and effectively reduce the separation instability caused by changes in flight attitude.

[0004] The technical solution of the utility model to solve the above problems is:

[0005] The utility model proposes a gas-liquid separator suitable for different flight attitude angles, the special features of which are:

[0006] It includes a gas-liquid separator shell, an upper part of the side of the gas-liquid separator shell is provided with an inlet, which is connected to the inlet section and the inlet tapered section in sequence; a lower part of the side of the gas-liquid separator shell is provided with a liquid outlet; a conical bracket is provided inside the gas-liquid separator shell, and the conical bracket is fixedly connected to the bottom of the gas-liquid separator shell; the outer side of the conical bracket is covered with a semipermeable membrane, and the semipermeable membrane is fixed to the conical bracket; the bottom of the gas-liquid separator shell is provided with an air outlet, and the air outlet corresponds to the bottom of the conical bracket.

[0007] Furthermore, the inlet tapered section is a convergent nozzle, which is used to accelerate the liquid-containing gas so that the liquid in the liquid-containing gas flows along the inner wall of the gas-liquid separator shell.

[0008] Furthermore, one end of the inlet section is connected to an end with a smaller inner diameter of the inlet tapered section, and the other end of the inlet section is connected to the inlet on the side of the gas-liquid separator shell, and enters tangentially along the gas-liquid separator shell; the inlet section is arranged obliquely downward, and the lower end is connected to the inlet on the side of the gas-liquid separator shell, which is used to guide the liquid-containing gas from the upper part of the gas-liquid separator to the lower part of the gas-liquid separator.

[0009] Furthermore, a fixing seat is provided at the bottom of the conical bracket, which is sealed to the bottom surface of the gas-liquid separator housing to form a separation cavity. The conical bracket and the semipermeable membrane divide the interior of the gas-liquid separator housing into a liquid cavity and a pure gas cavity.

[0010] Furthermore, the taper of the conical stent is adjusted by the aspect ratio of the liquid-containing cavity and the permeability per unit area of ​​the semipermeable membrane.

[0011] Furthermore, the liquid-containing cavity is a closed space formed by the gas-liquid separator shell and the outer side of the conical bracket. The cross-sectional area of ​​the liquid-containing cavity changes during the flow of the liquid-containing gas. When the gas passes through the semipermeable membrane on the conical bracket, the flow rate of the liquid-containing gas can be maintained unchanged, thereby achieving uniform ventilation on the surface of the semipermeable membrane during the gas-liquid separation process.

[0012] Furthermore, the air outlet at the bottom of the gas-liquid separator housing is connected to the air outlet pipe, and the air outlet is exactly opposite to the center of the fixing seat.

[0013] Furthermore, the semipermeable membrane is a liquid-resistant and gas-permeable membrane, which is liquid-resistant and gas-permeable according to the pressure difference on both sides of the membrane based on the difference between the diameter of liquid molecules and the diameter of gas molecules.

[0014] Furthermore, the aspect ratio of the gas-liquid separator housing is adjusted by the inlet tapered section to accelerate the liquid-containing gas and adjust the flow rate of the liquid-containing gas.

[0015] Advantages of this utility model:

[0016] The gas-liquid separator provided in the present application mainly performs separation by centrifugal action and is not affected by gravity or other force fields; the gas-liquid separator provided in the present application can achieve gas-liquid separation at different placement angles; the gas-liquid separator provided in the present application has a simple structure, does not have any moving parts, is small in size, light in weight, and is easy to carry and install; the gas-liquid separator provided by the present invention is suitable for different flight attitude angles, and its unique adaptive structure and functional mechanism design breaks through the technical limitations of traditional separators that are only applicable to specific flight conditions, and particularly emphasizes and realizes the ability to adapt to various flight attitude angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of the appearance of the utility model;

[0018] Figure 2 It is a structural diagram of the utility model;

[0019] Figure 3 This is a schematic structural diagram of the conical stent and the semipermeable membrane of the utility model.

[0020] Description of reference numerals:

[0021] 1-Inlet tapering section,

[0022] 2-Inlet section,

[0023] 3-Gas-liquid separator housing,

[0024] 4-Liquid outlet,

[0025] 5-conical bracket,

[0026] 6- Exhaust pipe,

[0027] 7-Semipermeable membrane. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the present invention.

[0029] See also Figures 1 to 3 A gas-liquid separator suitable for use at different flight attitude angles includes a gas-liquid separator housing 3. An inlet is provided on the upper side of the housing 3, which sequentially connects to the inlet section 2 and the inlet tapered section 1. A liquid outlet 4 is provided on the lower side of the housing 3. A conical bracket 5 is provided within the housing 3 and fixed to the bottom of the housing 3. The outer side of the conical bracket 5 is covered with a semipermeable membrane. An air outlet is provided on the bottom of the housing 3, corresponding to the bottom of the conical bracket 5.

[0030] Specifically, see Figure 1 and Figure 2 The inlet tapered section 1 is a convergent nozzle. The function of the convergent nozzle is to accelerate the liquid-containing gas so that the liquid in the liquid-containing gas flows along the inner wall of the gas-liquid separator shell 3.

[0031] Specifically, see Figure 1 and Figure 2 One end of the inlet section 2 is connected to the end with the smaller inner diameter of the inlet tapered section 1, and the other end of the inlet section 2 is connected to the inlet on the side of the gas-liquid separator housing 3, and enters tangentially along the gas-liquid separator housing 3. At the same time, the inlet section 2 is arranged obliquely downward, and the lower end is connected to the inlet on the side of the gas-liquid separator housing 3, which is used to guide the liquid-containing gas from the upper part of the gas-liquid separator to the lower part of the gas-liquid separator.

[0032] Specifically, see Figure 2 A fixing seat is provided at the bottom of the conical bracket 5, and the fixing seat is sealedly connected to the bottom surface of the gas-liquid separator housing 3. The conical bracket 5 divides the interior of the gas-liquid separator housing 3 into a liquid-containing cavity and a pure gas cavity.

[0033] Specifically, the taper of the conical support 5 is adjusted by the aspect ratio of the liquid-containing cavity and the permeability per unit area of ​​the semipermeable membrane 7 .

[0034] Specifically, see Figure 2 The liquid-containing cavity is a closed space formed by the gas-liquid separator shell 3 and the outer side of the conical bracket 5. The cross-sectional area of ​​the liquid-containing cavity changes during the flow of the liquid-containing gas. When the gas passes through the semipermeable membrane 7 on the conical bracket 5, the flow rate of the liquid-containing gas can be maintained unchanged.

[0035] Specifically, see Figure 2 The gas outlet at the bottom of the gas-liquid separator housing 3 is connected to the gas outlet pipe 6, which is coaxially arranged with the liquid separator housing 3. The gas separated by the semipermeable membrane 7 is discharged from the gas outlet through the gas outlet pipe 6. The diameters of the inlet tapered section 1, the inlet section 2, and the liquid outlet pipe 4 are designed according to actual needs.

[0036] Specifically, the semipermeable membrane 7 is a liquid-resistant and gas-permeable membrane, which is liquid-resistant and gas-permeable according to the pressure difference on both sides of the membrane based on the difference between the diameter of liquid molecules and the diameter of gas molecules.

[0037] Specifically, the aspect ratio of the gas-liquid separator housing 3 is adjusted by the inlet tapered section 1 to accelerate the liquid-containing gas and adjust the flow rate of the liquid-containing gas.

[0038] When the gas-liquid separator proposed by the present invention is suitable for different flight attitude angles, the final increased speed at the inlet tapered section 1 should be able to make the radial component of the velocity of the liquid-containing gas tangent to the inner wall surface of the gas-liquid separator housing 3. At the same time, the centripetal force generated by this speed on the inner wall of the gas-liquid separator housing 3 can be greater than the acceleration generated during the flight process, so that the liquid in the liquid-containing gas finally sticks to the wall surface and moves toward the liquid outlet pipe.

[0039] In this embodiment of the utility model, liquid gas in the refrigeration system, driven by pressure, first enters the tapered section for acceleration. The accelerated liquid gas then enters the liquid-containing cavity tangentially along the inlet section. Simultaneously, due to the downward inclination of the inlet section, the liquid gas generates a velocity component moving toward the other end. The centrifugal force generated by the rotation causes the liquid in the liquid gas to move against the inner wall to the tangential liquid outlet pipe at the other end. Simultaneously, the gas is driven by the pressure differential through the liquid-blocking, breathable membrane and discharged toward the outlet pipe, achieving gas-liquid separation.

[0040] In the example of the present invention, the conical bracket 5 can support the liquid-resistant breathable membrane on the one hand. On the other hand, since the gas continuously passes through the liquid-resistant breathable membrane, the liquid content of the liquid-containing gas in the separation chamber increases. The different positions caused by the conical bracket have different cross-sectional areas, so that the permeation efficiency of the liquid-resistant breathable membrane is always maintained at a high level.

[0041] In general, the utility model innovatively constructs a simple separation structure without any moving parts through in-depth research on the influence of changes in flight attitude angle on the flow characteristics and separation process of gas-liquid mixtures. This structure ensures that the liquid can be separated efficiently, continuously and stably under the combined action of gravity, inertia and centrifugal force, regardless of whether the separator is in complex and changeable attitudes such as horizontal flight, climbing, diving, yaw, roll, etc.

[0042] The above description is merely an embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied to other related system fields, are also included in the scope of protection of the present invention.

Claims

1. A gas-liquid separator suitable for different flight attitude angles, characterized by: The invention comprises a gas-liquid separator housing (3), wherein an inlet is provided at the upper portion of the side surface of the gas-liquid separator housing (3), the inlet being sequentially connected to an inlet section (2) and an inlet tapered section (1), and a liquid outlet (4) is provided at the lower portion of the side surface of the gas-liquid separator housing (3); a conical bracket (5) is provided inside the gas-liquid separator housing (3), and the conical bracket (5) is fixedly connected to the bottom of the gas-liquid separator housing (3); the outer side surface of the conical bracket (5) is covered with a semipermeable membrane; and an air outlet is provided at the bottom of the gas-liquid separator housing (3), and the air outlet corresponds to the bottom of the conical bracket (5).

2. The gas-liquid separator suitable for different flight attitude angles according to claim 1, characterized in that: The inlet tapered section (1) is a contraction-type nozzle, which is used to accelerate the liquid-containing gas so that the liquid in the liquid-containing gas flows along the inner wall of the gas-liquid separator shell (3).

3. The gas-liquid separator suitable for different flight attitude angles according to claim 2, characterized in that: One end of the inlet section (2) is connected to the end with the smaller inner diameter of the inlet tapered section (1), and the other end of the inlet section (2) is connected to the inlet on the side of the gas-liquid separator housing (3), and enters tangentially along the gas-liquid separator housing (3); the inlet section (2) is arranged obliquely downward, and the lower end is connected to the inlet on the side of the gas-liquid separator housing (3), and is used to guide the liquid-containing gas from the upper part of the gas-liquid separator to the lower part of the gas-liquid separator.

4. The gas-liquid separator suitable for different flight attitude angles according to claim 3, characterized in that: A fixing seat is provided at the bottom of the conical bracket (5), and the fixing seat is sealedly connected to the bottom surface inside the gas-liquid separator housing (3). The conical bracket (5) divides the inside of the gas-liquid separator housing (3) into a liquid-containing cavity and a pure gas cavity.

5. The gas-liquid separator suitable for different flight attitude angles according to claim 4, characterized in that: The taper of the conical support (5) is adjusted by the aspect ratio of the liquid-containing cavity and the permeability per unit area of ​​the semipermeable membrane (7).

6. The gas-liquid separator suitable for different flight attitude angles according to claim 5, characterized in that: The liquid-containing cavity is a closed space formed by the gas-liquid separator housing (3) and the outer side of the conical support (5). The cross-sectional area of ​​the liquid-containing cavity changes during the flow of the liquid-containing gas. When the gas passes through the semipermeable membrane (7) on the conical support (5), the flow rate of the liquid-containing gas can be maintained unchanged.

7. A gas-liquid separator suitable for different flight attitude angles according to any one of claims 1 to 6, characterized in that: The gas outlet at the bottom of the gas-liquid separator housing (3) is connected to the gas outlet pipe (6).

8. The gas-liquid separator suitable for different flight attitude angles according to claim 7, characterized in that: The semipermeable membrane (7) is a liquid-blocking and gas-permeable membrane, which is liquid-blocking and gas-permeable according to the pressure difference on both sides of the membrane based on the difference between the diameter of liquid molecules and the diameter of gas molecules.

9. The gas-liquid separator suitable for different flight attitude angles according to claim 8, characterized in that: The length-to-diameter ratio of the gas-liquid separator housing (3) is adjusted by the inlet tapered section (1) to accelerate the liquid-containing gas and adjust the flow rate of the liquid-containing gas.

Images