Water separator and turbine

Abstract

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, and a flow hole is formed in the side wall, close to the second pipe section, of the third pipe section. 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 utility model relates to the technical field of air conditioners, in particular to a water separator and a turbine. Background Art

[0002] In related air conditioner technologies, for example, in an aviation air conditioning system, the free water separated from the upstream condenser must be discharged from the system through a water separator. Otherwise, on the one hand, it affects the air conditioner outlet temperature; on the other hand, the ice particles formed by the super-low temperature of the water-containing air in the turbine not only pose a safety hazard to the high-speed rotating turbine, but also easily cause ice blockage in the condenser, resulting in frequent opening of the temperature control valve and shortening its service life. In addition, most of the water not discharged through the water separator will flow into the cabin from the air conditioner 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.

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

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

[0005] The utility model aims to design a water separator for separating water in a water-containing air flow, including:

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

[0007] One end of the second pipe section close to the first pipe section is connected with 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 part of the third pipe section located inside the first pipe section and the first pipe section forms a flow channel. A through hole is opened on the side wall of the third pipe section close to the second pipe section. The flow channel and the through hole are opposite in the axial direction of the first pipe section and the third pipe section;

[0009] A guide part, which is arranged inside the first pipe section and on the inlet side of the third pipe section, and the guide part makes the air flow flowing into the first pipe section form a swirling air flow;

[0010] A housing, one axial end of the housing is connected to the outlet side of the first pipe section, and the other axial end is connected to the inlet side of the second pipe section; the inside of the housing forms a water separation chamber; the outlet end of the flow channel and the through hole are both located inside the housing and communicate with the water separation chamber;

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

[0012] In some embodiments, the third pipe section includes a third pipe section A and a third pipe section B in its axial direction. The third pipe section A is connected to the third pipe section B. The inlet end of the third pipe section B is inserted into the first pipe section. The pipe diameter of the third pipe section B gradually decreases from near the third pipe section A to far from the third pipe section A to form the tapered flow channel.

[0013] One end of the flow channel near the first pipe section forms a first flow port, and the other end of the flow channel far from the first pipe section forms a second flow port. The radial dimension of the first flow port is larger than that of the second flow port.

[0014] In some embodiments, a plurality of flow holes are provided. The plurality of flow holes are arranged on the third pipe section A at intervals along the circumferential direction of the third pipe section A. The pipe diameter of the third pipe section A gradually decreases from near the second pipe section to far from the second pipe section.

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

[0016] Wherein, h1 / D ∈ [0.11 - 0.14], h2 / D ∈ [0.08 - 0.11], l / D ∈ [0.50 - 0.55].

[0017] In some embodiments, one end of the shell connected to the outer side wall of the first pipe section is the first end, and one end of the shell connected to the outer side wall of the second pipe section 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 section and the third pipe section A.

[0018] An expansion structure is formed in the middle part between the first end and the second end of the shell. The maximum volume position of the expansion structure is located between the second flow port and the flow holes.

[0019] In some embodiments, the side wall between the first end and the second end of the shell is an arc-shaped convex wall, and the arc-shaped convex wall constitutes an expansion structure with smaller ends and larger middle part.

[0020] In some embodiments, a plurality of through holes are opened at the bottom of the shell. The water collecting part is arranged at the bottom of the shell. The water collecting part forms a water collecting tank, and the water collecting tank is connected with 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 utility model 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 schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying 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 utility model;

[0029] Figure 2 It is a schematic diagram of the structure of a water separator shown in an embodiment of the utility model;

[0030] Figure 3 It is a front view of a water separator shown in an embodiment of the utility model;

[0031] Figure 4 It is a schematic diagram of the structure of the second pipe section and the third pipe section shown in an embodiment of the utility model;

[0032] Figure 5 It is one of the schematic diagrams of the flow hole shown in the embodiment of the utility model;

[0033] Figure 6 This is the second schematic diagram of the flow hole shown in the embodiment of the utility model;

[0034] Figure 7 It is the third schematic diagram of the flow holes shown in the embodiments of the present utility model;

[0035] Figure 8 It is a simulation diagram of the particle flow trajectory (path lines particle) at the flow holes of the water separator shown in the embodiments of the present utility model.

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

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

[0038] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 thus should not be construed as a limitation to the present utility model.

[0039] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "contacted", "communicated" 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 those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] In an aircraft air-conditioning system, the 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, the ice particles formed by the super-low temperature of the water-containing air in the turbine will not only pose a safety hazard to the high-speed rotating turbine, but also easily cause ice blockage in the condenser, resulting in frequent opening of the temperature control valve 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 to a certain extent affects the refrigeration capacity of the air conditioner and the service life of the temperature control valve.

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

[0043] Embodiment 1:

[0044] As Figure 1-4 shown in FIGS. 8, this embodiment provides a water separator for separating water in a water-containing air stream, including:

[0045] A first pipe section 1 and a second pipe section 2, where the first pipe section 1 serves as a fluid inlet pipe and the second pipe section 2 serves as a fluid discharge pipe;

[0046] One end of the second pipe section 2 close to the first pipe section 1 is connected with 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 part 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-through hole 6 is opened on the side wall of the third pipe section 3 close to the second pipe section 2. The flow channel 4 and the flow-through hole 6 are opposite in the axial direction of the first pipe section 1 and the third pipe section 3;

[0048] A guiding part 14, which is arranged inside the first pipe section 1 and on the inlet side of the third pipe section 3, and the guiding part 14 makes the air stream flowing into the first pipe section 1 form a swirling air stream;

[0049] A housing 5, one axial end of the housing 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; the inside of the housing 5 forms a water separation chamber 17; the outlet end of the flow channel 4 and the flow-through hole 6 are both located inside the housing 5 and communicate with the water separation chamber 17;

[0050] A water collection part is arranged at the bottom of the housing 5.

[0051] This water separator is preferably applicable to an aircraft air conditioning system. As one of the core components of the ACU, the water separation performance of the water separator directly affects the ice blockage conditions at the turbine outlet of the ACM (Air Cycle Machine) and the inlet of the cold side of the condenser. To ensure the stable operation of the ACM, it is necessary to increase the opening frequency of the TCV (Temperature Control Valve), which in turn affects its service life. In addition, the water separation efficiency of the water separator also affects the water content at the outlet of the ACU (water vapor in gaseous form and ice slag in solid form), thereby affecting the moisture content of the downstream gas and ultimately affecting the safety of the aircraft avionics. The resistance of the water separator affects the inlet pressure of the downstream turbine and thus affects the operating speed and outlet temperature of the entire ACU (air conditioning system). To reduce the flow resistance of the aircraft water separator and improve its water separation efficiency, this embodiment provides an efficient water separator that can skillfully combine the swirling flow design of the guiding part, the tapered channel with water collection, drainage, and gas-liquid separation effects, and the flow-through hole design at the inlet end of the fluid discharge pipe to effectively separate the liquid water in the airflow and greatly reduce the moisture content of the exhaust gas.

[0052] In this embodiment, the third pipe section 3 of the water separator serving as the fluid inlet pipe forms a flow channel 4, i.e., a tapered channel, with the first pipe section 1 in the part where the third pipe section 3 is located inside the first pipe section 1. The water collection structure adopts a tapered channel in the shape of an approximate semi-wedge with a larger inlet flow area than the outlet, which can increase the flow velocity and prevent the liquid water on the wall from flowing back to the gas main flow. At the same time, the guiding part 14 provided on the first pipe section 1 makes the airflow in the first pipe section 1 a swirling flow, greatly enhancing the separation effect of the water separation device. Further, the peripheral wall of the third pipe section 3 serving as the exhaust pipe is provided with openings, which can effectively separate the liquid water formed by condensation and reduce the flow resistance of the water separator. These comprehensive improvements greatly enhance 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 - 20 m / s. Under the action of the guiding part 14, it is centrifugally separated in the first pipe section 1. The high-speed water-containing airflow generates a relatively strong rotational speed of about 30 - 40 m / s under the action of the guiding part 14. In this state, the free water in the airflow is driven by the rotating airflow to generate a large centrifugal force, and then migrates towards 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 enters the water separation cavity 17 along the flow channel 4. The water in the water separation cavity 17 is collected under the action of gravity and the internal and external pressure difference of about 2 - 4 bar and can be discharged centrally.

[0054] During the flow of the main air flow through the first pipe section 1 and the second pipe section 2, there is a pressure difference between the main air flow and the water separation cavity 17. In the presence of this pressure difference, a small portion of the air flow passing through the water separation cavity 17 will merge into the main air flow in the second pipe section 2 through the flow holes 6. Thus, without increasing the leakage rate of the water separation cavity 17, the flow velocity of the air flow in the flow channel 4 can be increased, the air flow resistance can be reduced, and further the inflow of liquid water into the water separation cavity 17 can be accelerated and separated. Thereby, the overall water separation efficiency of the water separator is improved, the water content in the main air flow is reduced, the incidence of ice blockage is decreased, the refrigeration capacity of the air conditioner and the service life of the temperature control valve are maintained, and at the same time, the corrosion of metal parts is reduced, and the safety of the avionics system is enhanced.

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

[0056] The flow guiding part 14 mainly consists of guide vanes and a driving motor. By the operation of the driving motor, the guide vanes are driven to rotate, generating centrifugal force in the first pipe section 1, so that the water-containing air flow from the upstream is centrifugally separated in the first pipe section 1. The high-speed water-containing air flow generates a relatively strong rotational speed of about 30 - 40 m / s under the action of the rotation of the guide vanes. In this state, the free water in the air flow generates a large centrifugal force under the drive of the rotating air flow, and then migrates towards 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 collection part is provided at the bottom of the housing 5. The water film entering the housing 5 from the flow channel 4 is more likely to flow downward under the action of gravity and the internal and external pressure difference on the arc-shaped wall, flowing to the bottom position of the housing 5. The water collection part can be a part formed by the bottom of the housing 5 itself for water collection, or a water tank connected to the bottom position of the housing 5 and communicating with the water separation cavity 17 formed by the housing 5.

[0058] As Figure 8 shown in the simulation diagram of the particle flow trajectory at the flow hole 6 of the water separator, it is the simulation result of the flow trajectory of the particles in the water separator at the flow hole 6 in the first embodiment above. Taking the droplet diameter at the inlet of the first pipe section 1 as 10 μm and 50 μm and the droplet flow velocity as 15.1 m / s as an example, it can be Figure 8 seen that during the flow of the droplets through the first pipe section 1 and the second pipe section 2, a small portion of the droplets passing through the water separation cavity 17 will merge into the main air flow in the second pipe section 2 through the flow holes 6. Thus, without increasing the leakage rate of the water separation cavity 17, the flow velocity of the air flow in the flow channel 4 can be increased, the air flow resistance can be reduced, and further the inflow of liquid water into the water separation cavity 17 can be accelerated and separated. Thereby, the overall water separation efficiency of the water separator is improved, and the water content in the main air flow is reduced.

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

[0060] The third pipe section 3 includes a third pipe section A301 and a third pipe section B302 in its axial direction. The third pipe section A301 is connected to the second pipe section 2. The inlet end of the third pipe section B302 is inserted into the first pipe section 1. The diameter of the third pipe section B302 gradually decreases in the direction from near the third pipe section A301 to far from the third pipe section A301 to form the tapered flow channel 4.

[0061] One end of the flow channel 4 close to the first pipe section 1 forms a first flow port 7, and the other end of the flow channel 4 far from the first pipe section 1 forms a second flow port 8. The radial dimension of the first flow port 7 is larger than that of the second flow port 8.

[0062] In this embodiment, the diameter of the third pipe section B302 is larger at the end close to the third pipe section A301 and smaller at the end far from the third pipe section A301, and the third pipe section B302 gradually decreases from the end with a larger diameter to the end with a smaller diameter. Thus, the flow channel 4 formed by the part of the third pipe section B302 located inside the first pipe section 1 and the first pipe section 1 has a height that gradually decreases from the first flow port 7 to the second flow port 8. The partial cross-section 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 larger height of the first flow port 7 can increase the flow rate of the air flow 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 air flow. The smaller height of the second flow port 8 can cause the air flow to accelerate at this point, so that the liquid water at the flow channel 4 can more easily flow into the housing 5 and can effectively prevent backflow.

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

[0064] A plurality of the flow holes 6 are provided. The plurality of flow holes 6 are opened on the third pipe section A301 at intervals along the circumferential direction of the third pipe section A301. The diameter of the third pipe section A301 gradually decreases in the direction from near the second pipe section 2 to far from the second pipe section 2.

[0065] In this embodiment, the shape of the flow holes 6 is not specifically limited and can be circular, square or rectangular. The opening method of the flow holes 6 can be selected to be perpendicular to the axial direction of the third pipe segment A301 or to open holes in the form of a normal direction; the pipe diameter of the third pipe segment A301 gradually decreases from near the second pipe segment 2 to far from the second pipe segment 2. This design method makes the positions of the multiple flow holes 6 opposite to the second flow port 8. Therefore, a small part of the air flow flowing out through the second flow port 8 will directly flow into the main air flow in the second pipe segment 2 through the multiple flow holes 6. Thus, without increasing the leakage of the housing 5, the flow rate of the air flow in the flow channel 4 is further increased, the air flow resistance is reduced, and then the inflow of liquid water into the housing 5 is accelerated and separated, thereby improving the overall water separation efficiency of the water separator, reducing the water content in the main air flow, and reducing the incidence of ice blockage.

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

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

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

[0069] In this embodiment, the axial length dimensions of the first flow port 7, the second flow port 8, and the flow channel 4 are limited. Through the above dimension limitations, a partial cross-section of the flow channel 4 is in the shape of a semi-wedge. The height of the first flow port 7 is relatively large, which can increase the air flow rate 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 air flow. The height of the second flow port 8 is relatively small, which can accelerate the air flow at this point, so that the liquid water at the flow channel 4 can more easily flow into the housing 5 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 inside the housing 5 is relatively long, so that the flow channel 4 has a guiding effect on the fluid with a relatively long path, and thus the functions of the first flow port 7 to increase the fluid inflow rate and the second flow port 8 to accelerate the fluid flow rate can be fully exerted.

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

[0071] One end of the housing 5 connected to the outer side wall of the first pipe segment 1 is the first end 15, one end of the housing 5 connected to the outer side 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 of the second pipe segment 2 and the third pipe segment A301.

[0072] An expansion structure is formed in the middle part of the housing 5 between its first end 15 and second end 16, and the position of the maximum volume of the expansion structure is located between the second flow port 8 and the flow hole 6.

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

[0074] The connection positions at both ends of the housing 5 are such that the housing 5 can relatively cover the flow channel 4 and the flow hole 6. Thus, under the action of the guiding part 14, the high-speed water-containing airflow is centrifugally separated in the first pipe section 1. The free water in the airflow generates a large centrifugal force under the drive of the rotating airflow, and then migrates towards 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 main path airflow shear force in the first pipe section 1, the water film completely enters the housing 5 along the flow channel 4, and the airflow in the housing 5 can also completely converge into the second pipe section 2 along the flow hole 6 to converge with the main path airflow, so that the housing 5 can collect liquid water more efficiently.

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

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

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

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

[0079] A plurality of through holes 10 are formed at the bottom 9 of the housing 5. The water collection part is arranged at the bottom 9 of the housing 5. The water collection part forms a water collection tank 11, and the water collection tank 11 is connected with a first drain pipe 12.

[0080] The water film entering the housing 5 from the flow channel 4 is more likely to flow downward under the action of gravity and the internal and external pressure difference on the arc-shaped wall, flow to the bottom position of the housing 5, enter the water collection tank 11 through the plurality of through holes 10, is uniformly collected by the water collection tank 11, and then discharged from the first drain pipe 12. The arrangement of the plurality of through holes 10 plays a role in filtering impurities in the collected water, such as filtering viscous substances such as dust and mold, and avoiding blockage of the relevant pipelines downstream of the drainage.

[0081] Optionally, in one implementation of this embodiment, as Figures 1-3 shown,

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

[0083] When the water collecting tank 11 is blocked, the water collected in the housing 5 can directly drain out through the second drain pipe 13.

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

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

[0086] The limitation of the aperture of the flow hole 6 enables a small part of the air flow in the housing 5 to pass through the flow hole 6. Without increasing the leakage amount of the housing 5, the flow velocity of the air flow in the flow channel 4 can be increased, the air flow resistance can be reduced, and thus the inflow of liquid water into the housing 5 can be accelerated and separated, thereby improving the overall water separation efficiency of the water separator, reducing the water content in the main air flow, and reducing the incidence of ice blockage. If the aperture is too large, it can prevent a large amount of water-containing air flow from passing through the flow hole 6 and merging into the main air flow of the second pipe section 2 without being separated, thus avoiding affecting the water separation effect.

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

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

[0089] Embodiment 2

[0090] This embodiment provides a turbine including the water separator in Embodiment 1.

[0091] In the turbine equipped with this water separator, the water-containing gas flow from upstream enters the first pipe section 1 at a high speed of 10 - 20 m / s. Under the action of the guiding part 14, it is centrifugally separated within the first pipe section 1. The high-speed water-containing gas flow generates a relatively strong rotational speed of about 30 - 40 m / s under the action of the guiding part 14. In this state, the free water in the gas flow, driven by the rotational gas flow, generates a large centrifugal force, and then migrates towards the inner wall of the first pipe section 1, forming a water film on the inner wall of the first pipe section 1. Under the action of the shear force of the main gas flow within the first pipe section 1, the water film enters the housing 5 along the flow channel 4. The water in the housing 5 is collected under the action of gravity and the internal and external pressure difference of about 2 - 4 bar and can be discharged centrally; during the process of the main gas flow flowing through the first pipe section 1 and the second pipe section 2, there is a pressure difference between the main gas flow and the housing 5. In the presence of the pressure difference, a small part of the gas flow flowing through the housing 5 will flow into the main gas flow in the second pipe section 2 through the flow hole 6. Thus, without increasing the leakage amount of the housing 5, the flow rate of the gas flow within the flow channel 4 can be increased, the flow resistance of the gas flow can be reduced, and further, the inflow of liquid water into the housing 5 can be accelerated and separated, thereby improving the overall water separation efficiency of the water separator, reducing the water content in the main gas flow, and reducing the incidence of ice blockage.

[0092] Comparative example

[0093] The difference between the comparative example and Example 1 lies in that there is no flow hole 6 in the comparative example. A water separation effect simulation experiment was conducted on Example 1 and the comparative example, and the results are shown in Table 1 and Table 2 below.

[0094] Table 1: Water separation effect data of the comparative example

[0095]

[0096]

[0097] Table 2: Water separation effect data of Example 1

[0098]

[0099] The water separation effect data in Table 1 and Table 2 above prove that the fluid flow resistance of Example 1 can be reduced by about 4%; for liquid droplets with two particle sizes of 10 μm and 50 μm, the water separation efficiency of the water separator in Example 1 is higher than that of the water separator in the comparative example, with increases of about 6.8% and 8.0% respectively.

[0100] In summary, the ingenious idea of the water separator lies in:

[0101] 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.

[0102] 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.

[0103] 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.

[0104] 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.

[0105] 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.

[0106] Other embodiments of the present disclosure will be readily apparent to those skilled in the art upon consideration of the specification and practice of the utility model 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 known common general knowledge or conventional technical means in the technical field not disclosed herein. The specification and examples are only to be considered as exemplary, and the true scope and spirit of the present disclosure are pointed out by the following claims.

[0107] It should be understood that the present disclosure is not limited to the exact structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A water separator for separating water from a water-containing gas stream, characterized in that, Comprising: A first pipe section (1) and a second pipe section (2), where the first pipe section (1) serves as a fluid inlet pipe and the second pipe section (2) serves as a fluid outlet pipe; 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); An annular gap between the part 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 circulation hole (6) is provided on the side wall of the third pipe section (3) close to the second pipe section (2), and the flow channel (4) and the circulation hole (6) are opposite in the axial direction of the first pipe section (1) and the third pipe section (3); A flow guiding part (14), which is arranged inside the first pipe section (1) and on the inlet side of the third pipe section (3), and the flow guiding part (14) makes the airflow flowing into the first pipe section (1) form a swirling airflow; A housing (5), one axial end of the housing (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 separation chamber (17) is formed inside the housing (5); The outlet end of the flow channel (4) and the circulation hole (6) are both located inside the housing (5) and communicate with the water separation chamber (17); A water collection part is arranged at the bottom of the housing (5).

2. The water separator according to claim 1, characterized in that The third pipe section (3) includes a third pipe section A (301) and a third pipe section B (302) in its axial direction. The third pipe section A (301) is connected to the second pipe section (2), and the inlet end of the third pipe section B (302) is inserted into the first pipe section (1). The diameter of the third pipe section B (302) gradually decreases along the direction from near the third pipe section A (301) to far from the third pipe section A (301) to form the tapered flow channel (4); The flow channel (4) forms a first circulation port (7) at one end close to the first pipe section (1), and the flow channel (4) forms a second circulation port (8) at one end far from the first pipe section (1). The radial dimension of the first circulation port (7) is larger than the radial dimension of the second circulation port (8).

3. The water separator according to claim 2, characterized in that A plurality of the circulation holes (6) are provided. The plurality of circulation holes (6) are arranged at intervals along the circumferential direction of the third pipe section A (301) on the third pipe section A (301), and the diameter of the third pipe section A (301) gradually decreases along the direction from near the second pipe section (2) to far from the second pipe section (2).

4. The water separator according to claim 2, characterized in that The pipe diameter value of the first pipe section (1) is D, the radial dimension of the first circulation port (7) is h1, the radial dimension of the second circulation port (8) is h2, and the axial distance from the first circulation port (7) to the second circulation port (8) along the flow channel (4) is l. Wherein, h1 / D ∈ [0.11 to 0.14], h2 / D ∈ [0.08 to 0.11], and l / D ∈ [0.50 to 0.55].

5. The water separator according to claim 2, wherein one end of the housing (5) connected to the outer side wall of the first pipe section (1) is the first end (15), one end of the housing (5) connected to the outer side wall of the second pipe section (2) is the second end (16), the first end (15) is opposite to the first circulation port (7), and the second end (16) is located at the connection of the second pipe section (2) and the third pipe section A (301); an expansion structure is formed in the middle part of the housing (5) between its first end (15) and second end (16), and the position of the maximum volume of the expansion structure is between the second circulation port (8) and the circulation hole (6).

6. The water separator according to claim 5, wherein the side wall of the housing (5) between its first end (15) and second end (16) is an arc-shaped convex wall, and the arc-shaped convex wall constitutes an expansion structure with smaller ends and a larger middle.

7. The water separator according to claim 1, wherein a plurality of through holes (10) are provided at the bottom (9) of the housing (5), the water collecting part is arranged at the bottom (9) of the housing (5), a water collecting groove (11) is formed in the water collecting part, and the water collecting groove (11) is connected to a first drain pipe (12).

8. The water separator according to claim 7, wherein a second drain pipe (13) is connected to the side of the bottom (9) of the housing (5).

9. The water separator according to claim 7, wherein the aperture of the through hole (10) is 2 mm to 4 mm.

10. The water separator according to claim 1, wherein the aperture of the circulation hole (6) is 1 mm to 3 mm.

11. A turbine, characterized in that, including the water separator according to any one of claims 1-10.

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