Water separator and turbine

Abstract

The invention relates to a water separator and a turbine in the technical field of air conditioners, the water separator comprises a first pipe section, a second pipe section and a third pipe section, the part, located on the inner side of the first pipe section, of the third pipe section and the first pipe section form a flow channel, a flow hole is formed in the side wall, close to the second pipe section, of the third pipe section, and through the action of a flow guide part, the flow channel is communicated with the flow channel. Air flow is centrifugally separated in the first pipe section to form a water film on the inner wall of the first pipe section, the water film enters the water distribution cavity along the flow channel to be collected and can be intensively discharged, and a small part of air flow circulating in the water distribution cavity converges into the main path air flow in the second pipe section through the flow hole, so that the water flow can be uniformly discharged under the condition that the leakage amount of the water distribution cavity is not increased. The flow speed of airflow in the flow channel is increased, airflow flowing resistance is reduced, liquid water is accelerated to flow into the water separation cavity to be separated, the overall water separation efficiency of the water separator is improved, the water content of main airflow is reduced, and the occurrence rate of ice blockage of a downstream heat exchanger is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a water separator and a turbine. Background Art

[0002] In air-conditioning related technologies, for example, in aviation air-conditioning systems, free water separated from the upstream condenser must pass through the water separator to discharge the system, otherwise it will affect the air-conditioning outlet temperature on the one hand; on the other hand, ice particles formed by the ultra-low temperature of the water-containing air in the turbine will not only bring safety hazards to the high-speed rotating turbine, but also easily cause ice blockage in the condenser, causing the temperature control valve to open frequently and shorten its service life; in addition, most of the water that has not been discharged through the water separator will flow into the cabin from the air-conditioning outlet. Excessive water vapor flowing into the cabin will not only corrode some metal parts, but also bring safety hazards to the avionics system.

[0003] However, the existing water separator has a low water separation efficiency, which affects the refrigeration capacity of the air conditioner and the service life of the temperature control valve to a certain extent. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the problem of low separation efficiency of the water separator in the prior art and to provide a water separator and a turbine.

[0005] The present invention aims to design a water separator for separating water from a water-containing gas stream, comprising:

[0006] a first pipe section and a second pipe section, wherein the first pipe section serves as a fluid inlet pipe and the second pipe section serves as a fluid outlet pipe;

[0007] The end of the second pipe section close to the first pipe section is connected to a third pipe section, and the inlet end of the third pipe section is inserted into the first pipe section;

[0008] The annular gap between the portion of the third pipe segment located inside the first pipe segment and the first pipe segment forms a flow channel, a flow hole is provided on the side wall of the third pipe segment close to the second pipe segment, and the flow channel and the flow hole are opposite to each other in the axial direction of the first pipe segment and the third pipe segment;

[0009] a flow guide portion, the flow guide portion being arranged in the first pipe section and located at the inlet side of the third pipe section, the flow guide portion causing the airflow flowing into the first pipe section to form a rotating airflow;

[0010] A shell, one axial end of the shell is connected to the outlet side of the first pipe segment, and the other axial end is connected to the inlet side of the second pipe segment; the shell contains a water-dividing cavity; the outlet end of the flow channel and the flow hole are both located in the shell and communicated with the water-dividing cavity;

[0011] A water collecting portion is arranged at the bottom of the shell.

[0012] In some embodiments, the third pipe segment includes a third pipe segment A and a third pipe segment B in its axial direction, the third pipe segment A is connected to the third pipe segment B, the inlet end of the third pipe segment B is inserted in the first pipe segment, and the diameter of the third pipe segment B gradually decreases from the direction close to the third pipe segment A to the direction away from the third pipe segment A to form the tapered flow channel;

[0013] The flow channel forms a first flow opening at one end close to the first pipe section, and forms a second flow opening at one end away from the first pipe section. The radial dimension of the first flow opening is greater than the radial dimension of the second flow opening.

[0014] In some embodiments, a plurality of the flow holes are provided, and the plurality of the flow holes are opened on the third pipe segment A at intervals along the circumference of the third pipe segment A, and the diameter of the third pipe segment A gradually decreases from approaching the second pipe segment to away from the second pipe segment.

[0015] In some embodiments, the diameter of the first pipe section is D, the radial dimension of the first flow opening is h1, the radial dimension of the second flow opening is h2, and the axial distance from the first flow opening to the second flow opening along the flow channel is l.

[0016] Among them, h1 / D∈[0.11~0.14], h2 / D∈[0.08~0.11], l / D∈[0.50~0.55].

[0017] In some embodiments, the end of the shell connected to the outer wall of the first pipe segment is the first end, and the end of the shell connected to the outer wall of the second pipe segment is the second end, the first end is opposite to the first flow port, and the second end is located at the connection between the second pipe segment and the third pipe segment A;

[0018] The shell is provided with an expansion structure in the middle portion between the first end and the second end thereof, and the maximum volume position of the expansion structure is located between the second flow port and the flow hole.

[0019] In some embodiments, the side wall of the shell between the first end and the second end thereof is an arc-shaped protruding wall, and the arc-shaped protruding wall constitutes an expansion structure with small ends and a large middle.

[0020] In some embodiments, a plurality of through holes are opened at the bottom of the shell, the water collecting portion is arranged at the bottom of the shell, the water collecting portion forms a water collecting trough, and the water collecting trough is connected to a first drain pipe.

[0021] In some embodiments, a second drain pipe is connected to a side of the bottom of the shell.

[0022] In some embodiments, the perforations have a diameter of 2 mm to 4 mm.

[0023] In some embodiments, the diameter of the flow hole is 1 mm to 3 mm.

[0024] In some embodiments, a turbine is provided, comprising the above-mentioned water separator.

[0025] The solution provided by the present invention has the following beneficial effects compared with the prior art:

[0026] Through the action of the guide part, the water-containing air flow is centrifugally separated in the first pipe section to form a water film on the inner wall of the first pipe section. The water film enters the water separation chamber along the flow channel, is collected and can be discharged centrally, and a small part of the air flow flowing through the water separation chamber will merge into the main air flow in the second pipe section through the flow hole. In this way, the flow velocity of the air flow in the flow channel can be increased without increasing the leakage of the water separation chamber, and the flow resistance of the air flow can be reduced, thereby accelerating the liquid water to flow into the water separation chamber and be separated, thereby improving the overall water separation efficiency of the water separator, thereby reducing the water content of the main air flow and reducing the incidence of ice blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0028] Figure 1 is a cross-sectional view of a water separator shown in an embodiment of the present invention;

[0029] Figure 2 is a schematic diagram of the structure of a water separator shown in an embodiment of the present invention;

[0030] Figure 3 is a front view of a water separator shown in an embodiment of the present invention;

[0031] Figure 4 is a schematic diagram of the structure of the second pipe segment and the third pipe segment shown in an embodiment of the present invention;

[0032] Figure 5 is one of the schematic diagrams of the flow hole shown in the embodiment of the present invention;

[0033] Figure 6 is the second schematic diagram of the flow hole shown in the embodiment of the present invention;

[0034] Figure 7 is the third schematic diagram of the flow hole shown in the embodiment of the present invention;

[0035] Figure 8 4 is a simulation diagram of particle flow trajectories at the flow holes of a water separator shown in an embodiment of the present invention.

[0036] In the figure: 1-first pipe section, 2-second pipe section, 3-third pipe section, 301-third pipe section A, 302-third pipe section B, 4-flow channel, 5-shell, 6-flow hole, 7-first flow port, 8-second flow port, 9-bottom, 10-perforation, 11-water collecting trough, 12-first drain pipe, 13-second drain pipe, 14-guiding part, 15-first end, 16-second end, 17-water distribution chamber.

[0037] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0038] In the description of the present invention, it should be noted that the terms "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "contacted", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In aviation air-conditioning systems, free water separated from the upstream condenser must be discharged from the system through a water separator. Otherwise, on the one hand, it will affect the air-conditioning outlet temperature. On the other hand, ice particles formed by the ultra-low temperature of the water-containing air in the turbine will not only pose a safety hazard to the high-speed rotating turbine, but will also easily cause ice blockage in the condenser, causing the temperature control valve to open frequently and shortening its service life. In addition, most of the water that has not been discharged through the water separator will flow into the cabin from the air-conditioning outlet. Excessive water vapor flowing into the cabin will not only corrode some metal parts, but also pose a safety hazard to the avionics system.

[0041] However, the existing water separator has a low water separation efficiency, which affects the refrigeration capacity of the air conditioner and the service life of the temperature control valve to a certain extent.

[0042] Based on this, the following embodiments are proposed.

[0043] Embodiment 1:

[0044] like Figure 1-4 As shown in , this embodiment provides a water separator for separating water from a water-containing gas stream, comprising:

[0045] A first pipe section 1 and a second pipe section 2, wherein the first pipe section 1 is used as a fluid inlet pipe and the second pipe section 2 is used as a fluid outlet pipe;

[0046] One end of the second pipe section 2 close to the first pipe section 1 is connected to a third pipe section 3, and the inlet end of the third pipe section 3 is inserted into the first pipe section 1;

[0047] The annular gap between the portion of the third pipe segment 3 located inside the first pipe segment 1 and the first pipe segment 1 forms a flow channel 4, and a flow hole 6 is opened on the side wall of the third pipe segment 3 close to the second pipe segment 2, and the flow channel 4 and the flow hole 6 are opposite to each other in the axial direction of the first pipe segment 1 and the third pipe segment 3;

[0048] a flow guide portion 14, wherein the flow guide portion 14 is disposed in the first pipe segment 1 and is located at the inlet side of the third pipe segment 3, and the flow guide portion 14 enables the airflow flowing into the first pipe segment 1 to form a rotating airflow;

[0049] A shell 5, one axial end of the shell 5 is connected to the outlet side of the first pipe section 1, and the other axial end is connected to the inlet side of the second pipe section 2; a water dividing chamber 17 is formed inside the shell 5; the outlet end of the flow channel 4 and the flow hole 6 are both located in the shell 5 and communicated with the water dividing chamber 17;

[0050] The bottom of the housing 5 is provided with a water collecting portion.

[0051] The water separator is preferably suitable for aviation air conditioning systems. As one of the core components of the ACU, the water separation performance of the water separator directly affects the ice blockage of the ACM (air cycle machine) turbine outlet and the cold side inlet of the condenser. To ensure the stable operation of the ACM, the opening frequency of the TCV (temperature control valve) needs to be increased, which in turn affects its service life. In addition, the water separation efficiency of the water separator also affects the water content of the ACU outlet (water vapor in gaseous form and ice residue in solid form), which in turn affects the moisture content of the downstream gas, and ultimately affects the safety of the aircraft avionics. The resistance of the water separator will affect the inlet pressure of its downstream turbine and thus affect the operating speed and outlet temperature of the entire ACU (air conditioning system) system. In order to reduce the flow resistance of the aviation water separator and improve the water separation efficiency of the water separator, this embodiment provides a high-efficiency water separator, which can cleverly combine the swirl design of the guide part, the tapered channel with water collection, drainage, and air-water separation effects, and the flow hole design at the inlet end of the fluid discharge pipe, so as to achieve effective separation of liquid water in the airflow and greatly reduce the moisture content of the exhaust gas.

[0052] In the water separator of this embodiment, the third pipe segment 3 serving as the fluid inlet pipe, which is located on the inner side of the first pipe segment 1, forms a flow channel 4 with the first pipe segment 1, i.e., a tapered channel. The water collecting structure adopts a tapered channel which is approximately semi-wedge-shaped and has a larger inlet flow area than the outlet, so as to increase the flow rate and prevent the liquid water on the wall from flowing back to the mainstream gas. At the same time, the guide part 14 arranged in the first pipe segment 1 makes the airflow in the first pipe segment 1 a swirl flow, which greatly improves the separation effect of the water separation equipment. Furthermore, the peripheral wall of the third pipe segment 3 serving as the exhaust pipe adopts openings, which can effectively separate the liquid water formed by condensation and reduce the flow resistance of the water separator. These comprehensive improvements greatly improve the water separation effect of the water separator and effectively reduce the moisture content of the exhaust gas.

[0053] For example, in this embodiment, the water-containing airflow from the upstream enters the first pipe section 1 at a high speed of 10 to 20 m / s, and is centrifugally separated in the first pipe section 1 under the action of the guide portion 14. The high-speed water-containing airflow generates a strong rotation speed of about 30 to 40 m / s under the action of the guide portion 14. In this state, the free water in the airflow generates a large centrifugal force driven by the rotating airflow, and then migrates to the inner wall of the first pipe section 1, and forms a water film on the inner wall of the first pipe section 1. The water film enters the water diversion chamber 17 along the flow channel 4 under the shear force of the main airflow in the first pipe section 1. The water in the water diversion chamber 17 is collected and discharged centrally under the action of gravity and the internal and external pressure difference of about 2 to 4 bar.

[0054] During the circulation of the main airflow in the first pipe section 1 and the second pipe section 2, there is a pressure difference between the main airflow and the water separation chamber 17. When the pressure difference exists, a small part of the airflow circulating in the water separation chamber 17 will flow into the main airflow in the second pipe section 2 through the flow hole 6. This can increase the flow rate of the airflow in the flow channel 4 without increasing the leakage of the water separation chamber 17, reduce the flow resistance of the airflow, and accelerate the liquid water to flow into the water separation chamber 17 and be separated, thereby improving the overall water separation efficiency of the water separator, thereby reducing the water content of the main airflow, reducing the incidence of ice blockage, maintaining the air conditioning refrigeration capacity and the service life of the temperature control valve, while reducing corrosion to metal parts and improving the safety of the avionics system.

[0055] The flow guide 14 is configured to rotate the fluid and generate centrifugal force.

[0056] The guide part 14 is mainly composed of a guide vane and a drive motor. The guide vane is driven to rotate by the drive motor, generating centrifugal force in the first pipe section 1, so that the water-containing airflow from the upstream is centrifugally separated in the first pipe section 1. The high-speed water-containing airflow generates a strong rotation speed of about 30 to 40 m / s under the action of the rotation of the guide vane. In this state, the free water in the airflow generates a large centrifugal force driven by the rotating airflow, and then migrates to the inner wall of the first pipe section 1 and forms a water film on the inner wall of the first pipe section 1.

[0057] A water collecting portion is provided at the bottom of the shell 5, and the water film entering the shell 5 from the flow channel 4 is more likely to flow downward on the curved wall under the action of gravity and the internal and external pressure difference, and flows to the bottom position of the shell 5, wherein the water collecting portion can be a part formed at the bottom of the shell 5 itself for collecting water, and the water collecting portion can also be a water trough connected to the bottom position of the shell 5 and connected to the water diversion chamber 17 formed by the shell 5.

[0058] like Figure 8 The particle flow trajectory simulation diagram at the flow hole 6 of the water separator shown in FIG. 1 is a simulation result of the flow trajectory of the particles in the water separator at the flow hole 6 in the first embodiment. For example, the droplet diameter at the inlet of the first pipe section 1 is 10 μm and 50 μm, and the droplet flow rate is 15.1 m / s. Figure 8 It can be seen that during the circulation of droplets in the first pipe section 1 and the second pipe section 2, a small part of the droplets circulating in the water-dividing chamber 17 will flow into the main airflow in the second pipe section 2 through the flow hole 6. This can increase the flow rate of the airflow in the flow channel 4 without increasing the leakage of the water-dividing chamber 17, reduce the flow resistance of the airflow, and further accelerate the flow of liquid water into the water-dividing chamber 17 and be separated, thereby improving the overall water separation efficiency of the water separator and reducing the water content of the main airflow.

[0059] Optionally, in an implementation of this embodiment, as Figure 1 , 4 As shown,

[0060] The third pipe segment 3 includes a third pipe segment A301 and a third pipe segment B302 in the axial direction, the third pipe segment A301 is connected to the second pipe segment 2, the inlet end of the third pipe segment B302 is inserted in the first pipe segment 1, and the diameter of the third pipe segment B302 gradually decreases from the direction close to the third pipe segment A301 to the direction away from the third pipe segment A301 to form the tapered flow channel 4;

[0061] The flow channel 4 forms a first flow opening 7 at one end close to the first pipe section 1 , and forms a second flow opening 8 at one end away from the first pipe section 1 . The radial dimension of the first flow opening 7 is greater than the radial dimension of the second flow opening 8 .

[0062] In this embodiment, the diameter of the end of the third pipe segment B302 close to the third pipe segment A301 is larger, and the diameter of the end of the third pipe segment B302 away from the third pipe segment A301 is smaller, and the diameter of the third pipe segment B302 gradually decreases from the end with larger diameter to the end with smaller diameter. Therefore, the height of the flow channel 4 formed by the part of the third pipe segment B302 located on the inner side of the first pipe segment 1 and the first pipe segment 1 gradually decreases from the first flow port 7 to the second flow port 8. The cross-section of part of the flow channel 4 is semi-wedge-shaped, the first flow port 7 serves as the fluid inlet end, and the second flow port 8 serves as the fluid outlet end. The first flow port 7 has a larger height, which can increase the flow rate of the airflow in this area, thereby preventing the water film formed on the inner wall of the first pipe segment 1 from flowing back to the main airflow. The second flow port 8 has a smaller height, which can accelerate the airflow at this location, so that the liquid water in the flow channel 4 can flow into the shell 5 more easily, and can effectively prevent backflow.

[0063] Optionally, in an implementation of this embodiment, as Figure 4-7 As shown,

[0064] There are multiple flow holes 6, which are opened on the third pipe segment A301 at intervals along the circumference of the third pipe segment A301, and the diameter of the third pipe segment A301 gradually decreases from approaching the second pipe segment 2 to away from the second pipe segment 2.

[0065] In this embodiment, the shape of the flow hole 6 is not specifically limited, and can be circular, square or elongated. The flow hole 6 can be opened perpendicular to the axis of the third pipe segment A301 or in a normal form; the diameter of the third pipe segment A301 gradually decreases from close to the second pipe segment 2 to far away from the second pipe segment 2. This design makes the positions of the multiple flow holes 6 opposite to the second flow port 8, so that a small part of the airflow flowing out through the second flow port 8 will directly flow into the main airflow in the second pipe segment 2 through the multiple flow holes 6. Therefore, without increasing the leakage of the shell 5, the flow velocity of the airflow in the flow channel 4 is further increased, the flow resistance of the airflow is reduced, and the liquid water is accelerated to flow into the shell 5 and be separated, thereby improving the overall water separation efficiency of the water separator, thereby reducing the water content of the main airflow and reducing the incidence of ice blockage.

[0066] Optionally, in an implementation of this embodiment, as Figure 4-7 As shown,

[0067] The diameter of the first pipe section 1 is D, the radial dimension of the first flow opening 7 is h1, the radial dimension of the second flow opening 8 is h2, and the axial distance from the first flow opening 7 to the second flow opening 8 along the flow channel 4 is l.

[0068] Among them, h1 / D∈[0.11~0.14], h2 / D∈[0.08~0.11], l / D∈[0.50~0.55].

[0069] In this embodiment, the axial length dimensions of the first flow opening 7, the second flow opening 8 and the flow channel 4 are limited. Through the above-mentioned dimension limitation, the cross-section of part of the flow channel 4 is semi-wedge-shaped. The height of the first flow opening 7 is relatively large, which can increase the flow rate of the airflow in this area, thereby preventing the water film formed on the inner wall of the first pipe section 1 from flowing back to the main airflow. The height of the second flow opening 8 is relatively small, which can accelerate the airflow at this location, so that the liquid water at the flow channel 4 can flow into the shell 5 more easily and can effectively prevent backflow. The axial length of the flow channel 4 is relatively long, and the part of the flow channel 4 located in the shell 5 is relatively long, so that the flow channel 4 has a longer path guiding effect on the fluid, so that the first flow opening 7 can give full play to the function of increasing the fluid inlet flow rate and the second flow opening 8 can accelerate the fluid flow rate.

[0070] Optionally, in an implementation of this embodiment, as Figure 1 As shown,

[0071] One end of the shell 5 connected to the outer wall of the first pipe segment 1 is the first end 15, and one end of the shell 5 connected to the outer wall of the second pipe segment 2 is the second end 16. The first end 15 is opposite to the first flow port 7, and the second end 16 is located at the connection between the second pipe segment 2 and the third pipe segment A301.

[0072] The housing 5 is provided with an expansion structure in the middle portion between the first end 15 and the second end 16 , and the maximum volume position of the expansion structure is located between the second flow port 8 and the flow hole 6 .

[0073] In this embodiment, the shell 5 and the first pipe section 1 and the second pipe section 2 can be assembled by argon arc welding.

[0074] The positions at which the two ends of the shell 5 are connected enable the shell 5 to relatively cover the flow channel 4 and the flow hole 6, so that under the action of the guide portion 14, the high-speed water-containing airflow is centrifugally separated in the first pipe section 1, and the free water in the airflow generates a large centrifugal force driven by the rotating airflow, and then migrates to the inner wall of the first pipe section 1 and forms a water film on the inner wall of the first pipe section 1. Under the action of the shear force of the main airflow in the first pipe section 1, the water film completely enters the shell 5 along the flow channel 4, and the airflow in the shell 5 can also be completely gathered along the flow hole 6 to the second pipe section 2 to merge with the main airflow, so that the shell 5 can collect liquid water more efficiently.

[0075] Optionally, in an implementation of this embodiment, as Figure 1 As shown,

[0076] The side wall of the housing 5 between the first end 15 and the second end 16 is an arc-shaped convex wall, and the arc-shaped convex wall constitutes an expansion structure with small ends and a large middle.

[0077] The shell 5 is an arc-shaped cavity structure convex outward. The water film entering the shell 5 from the flow channel 4 is more likely to flow downward on the arc-shaped wall under the action of gravity and the internal and external pressure difference, and flows to the bottom position of the shell 5 to be collected uniformly, which is conducive to unified discharge.

[0078] Optionally, in an implementation of this embodiment, as Figure 1-3 As shown,

[0079] A plurality of through holes 10 are formed at the bottom 9 of the shell 5 . The water collecting portion is disposed at the bottom 9 of the shell 5 . The water collecting portion forms a water collecting trough 11 . The water collecting trough 11 is connected to a first drain pipe 12 .

[0080] The water film entering the shell 5 from the flow channel 4 is more likely to flow downward on the curved wall under the action of gravity and the internal and external pressure difference, flows to the bottom position of the shell 5, enters the water collecting tank 11 through multiple perforations 10, is uniformly collected by the water collecting tank 11, and then discharged from the first drain pipe 12. The setting of multiple perforations 10 can filter impurities in the collected water, such as filtering dust, mold and other viscous substances, to avoid blockage of related downstream pipes of the drainage.

[0081] Optionally, in an implementation of this embodiment, as Figure 1-3 As shown,

[0082] A second drain pipe 13 is connected to a side of the bottom 9 of the housing 5 .

[0083] The second drain pipe 13 is used so that the water collected in the housing 5 can be directly discharged from the second drain pipe 13 when the water collecting tank 11 is blocked.

[0084] Optionally, in an implementation of this embodiment, as Figure 1 , 4 -7,

[0085] The diameter of the flow hole 6 is 1 mm to 3 mm.

[0086] The limitation on the aperture of the flow hole 6 allows a small part of the airflow in the shell 5 to pass through the flow hole 6. Under the condition that the leakage of the shell 5 is not increased, the flow velocity of the airflow in the flow channel 4 can be increased, the flow resistance of the airflow can be reduced, and the liquid water can be accelerated to flow into the shell 5 and be separated, thereby improving the overall water separation efficiency of the water separator, thereby reducing the water content of the main airflow and reducing the incidence of ice blockage. The aperture cannot be too large, which can prevent the airflow from passing through the flow hole 6 at a large flow rate, and more water-containing airflow will be merged into the main airflow of the second pipe section 2 without being separated, so as to avoid affecting the water separation effect.

[0087] Optionally, in an implementation of this embodiment, as Figure 1 As shown,

[0088] The aperture of the perforation 10 is 2 mm to 4 mm. The design size of the perforation 10 is suitable for filtering impurities in the collected water, such as filtering dust, mold and other viscous substances to avoid blockage of related downstream pipes of the drainage.

[0089] Embodiment 2

[0090] This embodiment provides a turbine, including the water separator in the first embodiment.

[0091] In the turbine with the water separator, the water-containing airflow from the upstream enters the first pipe section 1 at a high speed of 10 to 20 m / s, and is centrifugally separated in the first pipe section 1 under the action of the guide part 14. The high-speed water-containing airflow generates a strong rotation speed of about 30 to 40 m / s under the action of the guide part 14. In this state, the free water in the airflow generates a large centrifugal force driven by the rotating airflow, and then migrates to the inner wall of the first pipe section 1 and forms a water film on the inner wall of the first pipe section 1. The water film enters the shell 5 along the flow channel 4 under the shear force of the main airflow in the first pipe section 1. The water in the shell 5 is And it is collected and discharged centrally under the action of the internal and external pressure difference of about 2 to 4 bar; when the main airflow flows in the first pipe section 1 and the second pipe section 2, there is a pressure difference between the shell 5. When the pressure difference exists, a small part of the airflow flowing through the shell 5 will flow into the main airflow in the second pipe section 2 through the flow hole 6, thereby increasing the flow velocity of the airflow in the flow channel 4 without increasing the leakage of the shell 5, reducing the flow resistance of the airflow, and further accelerating the liquid water to flow into the shell 5 and be separated, thereby improving the overall water separation efficiency of the water separator, thereby reducing the water content of the main airflow and reducing the incidence of ice blockage.

[0092] Comparative Example

[0093] The difference between the comparative example and the first embodiment is that the comparative example does not have the flow hole 6. A simulation experiment of water separation effect was conducted on the first embodiment and the comparative example, and the results are shown in Tables 1 and 2 below.

[0094] Table 1: Comparative water separation effect data

[0095]

[0096] Table 2: Water separation effect data of Example 1

[0097]

[0098] The water separation effect data in Tables 1 and 2 above prove that the fluid flow resistance in Example 1 can be reduced by about 4%; for droplets of two particle sizes of 10 μm and 50 μm, the water separation efficiency of the water separator in Example 1 is improved compared with that of the water separator in the comparative example, which is improved by about 6.8% and 8.0% respectively.

[0099] In summary, the ingenious idea of ​​the water separator is:

[0100] First, the water-containing airflow is centrifugally separated in the first pipe section through the action of the guide part. The free water in the airflow generates a large centrifugal force driven by the rotating airflow, and then migrates to the inner wall of the first pipe section and forms a water film on the inner wall of the first pipe section. The water film enters the water separation chamber along the flow channel under the shear force of the main airflow in the first pipe section. The water in the water separation chamber is collected and discharged centrally under the action of gravity and the internal and external pressure difference. A small part of the airflow circulating in the water separation chamber will be merged into the main airflow in the second pipe section through the flow hole. In this way, the flow velocity of the airflow in the flow channel can be increased without increasing the leakage of the water separation chamber, and the flow resistance of the airflow can be reduced, thereby accelerating the flow of liquid water into the water separation chamber and being separated, thereby improving the overall water separation efficiency of the water separator, thereby reducing the water content of the main airflow and reducing the incidence of ice blockage.

[0101] Second, the cross-section of the flow channel is semi-wedge-shaped, with the first flow port serving as the fluid inlet end and the second flow port serving as the fluid outlet end. The first flow port is relatively high, which can increase the flow rate of the airflow in this area, thereby preventing the water film formed on the inner wall of the first pipe section from flowing back to the main airflow. The second flow port is relatively low in height, which can accelerate the airflow at this location, thereby making it easier for liquid water in the flow channel to flow into the water diversion chamber and effectively preventing backflow.

[0102] It is further understood that in the present disclosure, "plurality" refers to two or more than two, and other quantifiers are similar thereto. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. The singular forms "a", "the" and "the" are also intended to include plural forms, unless the context clearly indicates other meanings.

[0103] It is further understood that the terms "first", "second", etc. are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other, and do not indicate a specific order or degree of importance. In fact, the expressions "first", "second", etc. can be used interchangeably. For example, without departing from the scope of the present disclosure, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information.

[0104] It is further understood that, although the operations are described in a specific order in the drawings in the embodiments of the present disclosure, it should not be understood as requiring the operations to be performed in the specific order shown or in a serial order, or requiring the execution of all the operations shown to obtain the desired results. In certain environments, multitasking and parallel processing may be advantageous.

[0105] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0106] It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the scope of the appended claims.

Claims

1. A water separator for separating water from a water-containing gas stream, It is characterized in that include: A first pipe section (1) and a second pipe section (2), wherein the first pipe section (1) serves as a fluid inlet pipe and the second pipe section (2) serves as a fluid outlet pipe; The end of the second pipe section (2) close to the first pipe section (1) is connected to a third pipe section (3), and the inlet end of the third pipe section (3) is inserted into the first pipe section (1); The annular gap between the portion of the third pipe section (3) located inside the first pipe section (1) and the first pipe section (1) forms a flow channel (4); a flow hole (6) is provided on the side wall of the third pipe section (3) close to the second pipe section (2); the flow channel (4) and the flow hole (6) are opposite to each other in the axial direction of the first pipe section (1) and the third pipe section (3); a flow guide portion (14), the flow guide portion (14) being arranged in the first pipe section (1) and located at the inlet side of the third pipe section (3), the flow guide portion (14) causing the airflow flowing into the first pipe section (1) to form a rotating airflow; A shell (5), one axial end of the shell (5) is connected to the outlet side of the first pipe section (1), and the other axial end is connected to the inlet side of the second pipe section (2); a water dividing chamber (17) is formed inside the shell (5); the outlet end of the flow channel (4) and the flow hole (6) are both located inside the shell (5) and are in communication with the water dividing chamber (17); The bottom of the housing (5) is provided with a water collecting portion.

2. The water separator according to claim 1, It is characterized in that The third pipe section (3) comprises a third pipe section A (301) and a third pipe section B (302) in the axial direction, the third pipe section A (301) is connected to the second pipe section (2), the inlet end of the third pipe section B (302) is inserted into the first pipe section (1), and the diameter of the third pipe section B (302) gradually decreases along the direction from approaching the third pipe section A (301) to away from the third pipe section A (301) to form the tapered flow channel (4); The flow channel (4) forms a first flow opening (7) at an end close to the first pipe section (1), and forms a second flow opening (8) at an end away from the first pipe section (1), and the radial dimension of the first flow opening (7) is greater than the radial dimension of the second flow opening (8).

3. The water separator according to claim 2, It is characterized in that A plurality of the circulation holes (6) are provided, and the plurality of the circulation holes (6) are arranged on the third pipe segment A (301) at intervals along the circumference of the third pipe segment A (301), and the pipe diameter of the third pipe segment A (301) gradually decreases from approaching the second pipe segment (2) to being away from the second pipe segment (2).

4. The water separator according to claim 2, It is characterized in that The diameter of the first pipe section (1) is D, and the radial dimension of the first flow opening (7) is h. 1 The radial dimension of the second flow opening (8) is h 2 , the axial distance from the first flow opening (7) to the second flow opening (8) along the flow channel (4) is l, Among them, h 1 / D∈[0.11~0.14],h 2 / D∈[0.08~0.11], l / D∈[0.50~0.55].

5. The water separator according to claim 2, It is characterized in that One end of the shell (5) connected to the outer wall of the first pipe section (1) is the first end (15), and one end of the shell (5) connected to the outer wall of the second pipe section (2) is the second end (16), the first end (15) is opposite to the first flow port (7), and the second end (16) is located at the connection between the second pipe section (2) and the third pipe section A (301); The shell (5) is provided with an expansion structure in the middle portion between the first end (15) and the second end (16), and the maximum volume position of the expansion structure is located between the second flow port (8) and the flow hole (6).

6. The water separator according to claim 5, It is characterized in that The side wall of the shell (5) between the first end (15) and the second end (16) is an arc-shaped convex wall, and the arc-shaped convex wall forms an expansion structure with small ends and large middle.

7. The water separator according to claim 1, It is characterized in that A plurality of through holes (10) are provided at the bottom (9) of the shell (5); the water collecting portion is arranged at the bottom (9) of the shell (5); the water collecting portion forms a water collecting trough (11); and the water collecting trough (11) is connected to a first drain pipe (12).

8. The water separator according to claim 7, It is characterized in that A second drain pipe (13) is connected to the side of the bottom (9) of the shell (5).

9. The water separator according to claim 7, It is characterized in that The diameter of the perforation (10) is 2 mm to 4 mm.

10. The water separator according to claim 1, It is characterized in that The diameter of the flow hole (6) is 1 mm to 3 mm.

11. A turbine, It is characterized in that Comprising the water separator as described in any one of claims 1-10.

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