Rectification type reinforced swirler for building drainage vertical pipe

Abstract

The utility model provides a rectification type reinforced swirler for a building drainage vertical pipe. The rectifying type reinforced cyclone is characterized in that a groove type spiral guide vane (6) for rectifying water flow of a vertical pipe and water flow of a transverse branch pipe is arranged on the inner wall of the cone section (5), and an upper curved surface guide vane (3) for guiding the water flow of the upper vertical pipe to deflect and flow into the groove type spiral guide vane (6) for rectification is further arranged below the upper vertical pipe connector (1). Compared with a traditional reinforced swirler, the innovative design of the rectification structure of the rectification type reinforced swirler not only can change the water flow direction and reduce the water flow speed through the guide vanes (3) and (6), but also can rectify the flowing water flow through the groove type spiral guide vanes (6) when the water flow of a vertical pipe and the water flow of a transverse branch pipe flow through the rectification type reinforced swirler, so that the flow rate of the water flow is reduced. Therefore, a spiral water flow form which is more favorable for improving the drainage capacity of the drainage vertical pipe is really formed.

Description

TECHNICAL FIELD

[0001] The utility model relates to building drainage system engineering technical field, concretely relates to a new -type structure's reinforced cyclone for building drainage. BACKGROUND

[0002] The water flow in the pipe is gas-liquid two-phase gravity flow when the building life drainage vertical pipe drains, the water flow falls and flows under gravity, and the air flow is carried downward at the same time. The problem to be solved by the drainage vertical pipe is to have greater drainage flow of the drainage vertical pipe with the same caliber under the condition that the water seal of the drainage system is not damaged, so that the water seal in the trap or the trap in the floor drain on the drainage branch pipe of the residential bathroom and kitchen will not appear return smell due to water seal damage under larger drainage capacity (drainage flow), and the residential health and safety are ensured. The key to prevent water seal damage is to ensure that the air flow pressure fluctuation value causing water seal spatter or suction loss in the pipe is controlled within the specified range (±400Pa is stipulated in CJJ / T 245-2016 "Residential Life Drainage System Vertical Pipe Drainage Capacity Test Standard") within the range of as large as possible drainage capacity (drainage flow) of the drainage vertical pipe, so as to control the water seal loss of the trap or the trap in the floor drain within 25mm.

[0003] As shown in FIG. 1(a), FIG. 1(b), the drainage vertical pipe A1 is in the flow state of gas-liquid two-phase flow when it drains downward under gravity flow, that is, the water flow carries air downward, the water flow flows downward along the pipe wall in the form of wall-attached water flow A2, and the air flow A3 flows in the center of the pipe. With the increase of drainage flow or the change of water flow pattern in the vertical pipe, even water plug flow A4 is formed, which causes the air flow passage in the center of the pipe to become smaller or blocked, resulting in increased pressure fluctuation of the drainage pipe system. The water seal above the drainage horizontal branch pipe at the air vent blocked part of the drainage vertical pipe will appear spatter loss under positive pressure (high pressure area), and the water seal below the drainage horizontal branch pipe at the air vent blocked part of the drainage vertical pipe will appear suction loss under negative pressure (low pressure area), which causes the trap water seal protection function to fail, and harmful gases in the pipe enter the living room. Therefore, when designing the drainage vertical pipe and pipe fitting structure of the building life drainage system, it should be ensured that the water flow flow pattern center formed under large drainage flow when the drainage vertical pipe drains has sufficient, hollow air passage cross-sectional area and low falling flow velocity, so as to reduce the pressure fluctuation amplitude in the vertical pipe under large drainage flow, reduce the water seal loss, and ensure the safety and health of the drainage system without return smell.

[0004] As shown in FIG. 2(a), FIG. 2(b), the conventional drainage system drainage vertical pipe B1 and drainage horizontal branch pipe B2 are connected by 90° water following tee B3 or 45° water following tee B4, when the horizontal branch pipe water flow B6 flows into the drainage vertical pipe B1, it will form a tongue-shaped water flow B5 at the tee pipe part, commonly known as "water tongue", this water flow form will partially or completely close the vent passage in the center of the drainage vertical pipe, causing the sharp increase of the pressure fluctuation in the pipe and the destruction of the water seal. The conventional drainage system vertical pipe adopts 90° water following tee B3 or 45° water following tee B4 to connect the DN100 single vertical pipe drainage system with extended vent, and the drainage capacity is only 3.5-4 liters / second.

[0005] To solve the above problems, a cyclone can be used as a special pipe fitting for connecting the drainage vertical pipe and the drainage horizontal branch pipe in the building and living drainage system. The drainage horizontal branch pipe is used to receive sewage, and the sewage flows through the drainage horizontal branch pipe and is cyclone into the drainage vertical pipe under the action of the cyclone, forming a stable hollow cyclone. The space in the middle of the cyclone is used for venting, so as to ensure the stability of the air pressure in the pipe, the large drainage flow and the low noise.

[0006] The cyclone structure similar to the following structure is usually used in the prior art, for example, the Chinese utility model patent with the application number 201720006605.0 and the name "a new cyclone for building drainage" discloses a cyclone structure, as shown in Figure 3 The cyclone includes a shock absorbing support C1, a three-layer noise reduction elbow C2, a horizontal and straight flow side pipe C3, a double-layer noise reduction cyclone cone pipe C4, a drainage vertical pipe inlet pipe C5, a double-layer noise reduction reinforced cyclone expansion section C6, a flow guide inlet C7, a flow guide blade C8, a drainage vertical pipe sewer pipe C9, and a body C10. The flow guide inlet C7 of the horizontal and straight flow side pipe C3 is in communication with the inside of the double-layer noise reduction reinforced cyclone expansion section C6 to form a tangential water inlet. The lower part of the double-layer noise reduction reinforced cyclone expansion section C6 is provided with a double-layer noise reduction cyclone cone pipe C4. A plurality of flow guide blades C8 are equally arranged in the double-layer noise reduction cyclone cone pipe C4. The built-in flow guide blades C8 improve the drainage flow capacity and reduce the risk of water seal damage.

[0007] But the prior art has the following defects: when the vertical pipe water flow flows through the cyclone, the guide vane in the cyclone can only reduce the vertical pipe water flow speed, and cannot straighten the flow to form a spiral flow. When the upper vertical pipe water flow and the tangential inlet rotating water flow of the horizontal straight flow side pipe flow through the reinforced cyclone at the same time, although the horizontal straight flow side pipe can form a tangential inlet rotating water flow, the vertical pipe water flow will destroy the tangential inlet rotating water flow of the horizontal straight flow side pipe, so that the two water flows cannot be effectively integrated and combined into a more beneficial spiral wall-attached water flow. At the same time, the rapidly falling vertical pipe water flow encounters multiple guide vanes evenly arranged inside the double-layer noise reduction cyclone cone pipe, and multiple water flows deviated to the center of the reinforced cyclone are splashed, which not only reduces the cross-sectional area of the ventilation passage, but also causes the air flowing in the pipe to contain more water mist, so that the mixed gas containing water mist has a larger density. The reduction of the cross-sectional area of the ventilation passage and the increase of the density of the mixed gas increase the ventilation resistance of the drainage vertical pipe, and further increase the pressure fluctuation amplitude of the drainage vertical pipe, which increases the risk of water seal damage and toilet back odor. The greater the drainage flow, the greater the pressure fluctuation amplitude, and the greater the risk of water seal damage. Practical new type content

[0008] The technical problem to be solved by the utility model is to overcome the defects of the prior art, and provide a straightening type reinforced cyclone for building drainage vertical pipes, which can straighten the water flow flowing therethrough when the vertical pipe water flow and the horizontal branch pipe water flow flow therethrough, so that a spiral water flow pattern more beneficial to improving the drainage capacity of the drainage vertical pipe is formed.

[0009] In order to achieve the above technical purpose, the utility model provides the following technical scheme:

[0010] A straightening type reinforced cyclone for building drainage vertical pipes, the main body of the straightening type reinforced cyclone comprises a hollow expansion section 4 and a cone section 5; the expansion section 4 of the straightening type reinforced cyclone is provided with a vertical pipe interface at the upper portion for connecting the drainage vertical pipe, and the expansion section side of the straightening type reinforced cyclone is provided with a horizontal branch pipe interface with a tangential inlet structure for connecting the drainage horizontal branch pipe guide inlet to form a tangential inlet; characterized in that: the straightening type reinforced cyclone is provided with a groove type spiral guide vane 6 for straightening the vertical pipe water flow and the horizontal branch pipe water flow on the inner wall of the cone section 5, and an upper curved guide vane 3 is further arranged below the upper vertical pipe interface 1 for guiding the upper vertical pipe water flow to deflect and flow into the groove type spiral guide vane 6 for straightening.

[0011] Preferably, the groove type spiral guide vane 6 is a ditch structure, which is composed of a groove wall 602 and a groove bottom plate 601, and the groove bottom plate 601 is attached to the spiral curved surface of the inner wall of the cone section 5.

[0012] Preferably, the starting point of the groove type helical guide vane 6 is located at an angle θ° with the axis of the tangential water inlet horizontal branch pipe interface 2, and θ° ranges from 30° to 35°; the groove type helical guide vane 6 rotates counterclockwise downward along the helical shape by 100° to 150° with a helical angle of 45° to 55°.

[0013] Preferably, the angle α° between the groove side wall 602 and the groove bottom plate 601 ranges from 90° to 120°.

[0014] Preferably, the height H of the groove side wall 602 ranges from 15 mm to 25 mm.

[0015] Preferably, the size L of the widest part of the groove type helical guide vane 6 is not less than one half of the inner diameter of the expansion section 4.

[0016] Further, a round corner transition is adopted between the groove side wall 602 and the groove bottom plate 601, and the radius R' of the transition round corner ranges from 15 mm to 25 mm.

[0017] Preferably, the thickness δ of the groove type helical guide vane 6 ranges from 4.5 mm to 7 mm.

[0018] The upper curved surface guide vane 3 is a curved pipe shaped curved surface structure, the curved pipe opening faces the groove type helical guide vane 6, the curved pipe curvature radius R1 is not less than 1.2 times of the riser pipe body radius and not more than 2 times of the riser pipe body radius; the deflection angle θ of the curved pipe opening with the horizontal plane ranges from 30° to 45°.

[0019] Preferably, the curved pipe axis of the curved pipe shaped upper curved surface guide vane 3 and the axis of the tangential water inlet horizontal branch pipe interface 2 form an angle γ° ranging from 45° to 70°.

[0020] Further, the tangential water inlet structure of the horizontal branch pipe interface 2 of the flow regulation type reinforced cyclone includes a curved pipe body connected with the expansion section 4 and an interface in communication with the drainage horizontal branch pipe, the curved pipe body of the horizontal branch pipe interface 2 is tangentially connected with the expansion section 4 as a whole by 45° downward, and the curved pipe body curvature radius R is not less than 1.2 times of the riser pipe body radius and not more than 2 times of the riser pipe body radius.

[0021] The expansion section 4 of the flow regulation type reinforced cyclone is a hollow cylindrical structure, and its diameter is greater than the diameter of the connected drainage riser and not more than 1.5 times of the diameter of the drainage riser.

[0022] The cone section 5 of the flow regulation type reinforced cyclone is a hollow cone structure for the transition of the expansion section 4 and the lower riser interface 7, and the cone angle β° of the cone section ranges from 10° to 15°.

[0023] The beneficial effects of the utility model are:

[0024] Traditional enhanced hydrocyclones use inclined flat guide vanes, which prevent the water flow falling from the upper riser from forming a rotating, wall-attached flow on the flat guide vanes. However, this invention, a flow-rectifying enhanced hydrocyclone for building drainage risers, differs from traditional hydrocyclone structures. Whether the water flow from the upper riser and the horizontal branch pipe enters the flow-rectifying enhanced hydrocyclone simultaneously or separately, it can be rectified by the grooved spiral guide vanes to form a spiral wall-attached flow. This fundamentally changes the flow pattern, preventing splashing water droplets from drifting towards the center of the hydrocyclone, expanding the hydrocyclone's ventilation channel, and reducing ventilation resistance and pressure fluctuations within the pipe. Through the rational coordination of the positions of various structural components, the spiral-shaped water flow pattern formed by the rectifier-type enhanced cyclone further reduces the water flow velocity and the pressure fluctuation amplitude inside the pipe. The centrifugal effect of the spiral water flow can increase the thickness of the water film on the wall at a lower water flow velocity, thereby improving the drainage capacity of the riser. While reducing the pressure fluctuation amplitude, it significantly improves the drainage capacity of the drainage system (the drainage capacity is 20% to 30% higher than that of traditional enhanced cyclone separators), and eliminates the problem of backflow odor in residential bathrooms. Attached Figure Description

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0026] Figure 1(a) is a schematic diagram of water flow attached to the wall of the drainage riser;

[0027] Figure 1(b) is a schematic diagram of water plug flow in a drainage riser;

[0028] The following are the labels in the attached diagram: A1, drain riser; A2, wall-mounted water flow; A3, air flow; A4, water plug flow.

[0029] Figure 2(a) is a schematic diagram of the water flow pattern of the drainage riser of a traditional drainage system using a 90° downstream tee.

[0030] Figure 2(b) is a schematic diagram of the water flow pattern of the drainage riser of a traditional drainage system using a 45° downstream tee.

[0031] The following are the labels in the attached diagram: B1, drainage riser; B2, drainage horizontal branch pipe; B3, 90° downstream tee; B4, 45° downstream tee.

[0032] Figure 3 This is a schematic diagram of a hydrocyclone structure disclosed in the prior art;

[0033] Figure mark explanation: C1, shock absorber support, C2, three-layer noise reduction elbow, C3, horizontal DC side pipe, C4, double-layer noise reduction cyclone cone pipe, C5, drainage vertical pipe water inlet pipe, C6, double-layer noise reduction reinforced cyclone expansion section, C7, flow guide inlet, C8, flow guide blade, C9, drainage vertical pipe sewer pipe, C10, device body.

[0034] Figure 4 For the rectifier type reinforced cyclone structure schematic diagram of preferred embodiment of the utility model;

[0035] Figure 5 (a) is the top view of the embodiment shown in the figure Figure 4

[0036] Figure 5 (b) is the right view of the embodiment shown in the figure Figure 4

[0037] Figure 5 (c) is the A-A sectional view of the embodiment shown in Figure 5 (b)

[0038] Figure 5 (d) is the B-B sectional view of the embodiment shown in Figure 5 (b)

[0039] Figure 5 (e) is the C-C sectional view of the embodiment shown in Figure 5 (b)

[0040] Figure 6 (a) is the water flow pattern schematic diagram in Figure 5 (c)

[0041] Figure 6 (b) is the water flow pattern schematic diagram in Figure 5 (a)

[0042] Figure 6 (c) is the water flow pattern schematic diagram in Figure 5 (e)

[0043] Figure 7 (a) is the enlarged schematic diagram of Figure 5 (c)

[0044] Figure 7 (b) is the groove type spiral flow guide blade sectional view of the embodiment shown in the figure Figure 4

[0045] Figure 7 (c) is the enlarged schematic diagram of Figure 5 (a)

[0046] Figure 8 (a) is one of the explosion diagrams of rectifier type reinforced cyclone

[0047] Figure 8 (b) is the second explosion diagram of rectifier type reinforced cyclone

[0048] Figure 9 (a) is the front view of the upper vertical pipe interface and the upper curved flow guide blade integrated structure

[0049] Figure 9 (b) is the G-G sectional view of the structure of Figure 9 (a)

[0050] Figure 9 (c) is the perspective view of the structure of Figure 9 (a)

[0051] Figure mark explanation: ​​​

[0052] 1 - upper standpipe interface; 2 - tangential water inlet horizontal branch pipe interface; 3 - upper curved flow guide vane; 4 - expansion section; 5 - cone section; 6 - grooved spiral flow guide vane; 601 - spiral curved groove bottom plate; 602 - groove along wall; 7 - lower standpipe interface.

[0053] W1 - deflected water flow guided by the upper curved flow guide vane; W2 - tangential water inlet rotating water flow; W3 - spiral wall-attached water flow rectified by the grooved spiral flow guide vane. DETAILED DESCRIPTION

[0054] As Figure 4 shown, the rectifying type reinforced cyclone for building drainage standpipe of the utility model is composed of upper standpipe interface 1, tangential water inlet horizontal branch pipe interface 2, upper curved flow guide vane 3, expansion section 4, cone section 5, grooved spiral flow guide vane 6 and lower standpipe interface 7, adopts hollow expansion section 4 and cone section 5 combined structure, the horizontal branch pipe interface adopts tangential water inlet horizontal branch pipe interface 2 structure, the lower side of upper standpipe interface 1 is provided with an upper curved flow guide vane 3 for guiding the direction of standpipe water flow, the inner wall of cone section 5 is provided with a grooved spiral flow guide vane 6 for rectifying standpipe water flow and horizontal branch pipe water flow. As shown in the water flow pattern of Fig. 6 (a), the rectifying structure of the rectifying type reinforced cyclone is innovatively designed compared with the traditional reinforced cyclone, which can not only change the direction of water flow and reduce the speed of water flow through flow guide vanes 3 and 6, but also when standpipe water flow and horizontal branch pipe water flow flow through the rectifying type reinforced cyclone, the grooved spiral flow guide vane 6 can rectify the flowing water, so that it truly forms the spiral water flow pattern which is more favorable for improving the drainage capacity of drainage standpipe.

[0055] For reference Figures 5(a) to 5(e) :

[0056] The upper standpipe interface 1 can adopt different size socket type interfaces according to the size of pipe diameter, and can also adopt other interface forms.

[0057] With reference to FIG. 8(a), FIG. 8(b), in the embodiment, the upper curved surface guide vane 3 is designed in a curved pipe shape and is integrally formed with the upper stand pipe interface, and is fixedly connected to other parts of the cyclone by bonding. As shown in FIG. 9(a), FIG. 9(b), FIG. 9(c), the curved pipe opening is directed to the groove type spiral guide vane 6, the curved pipe diameter is consistent with the pipe diameter of the connected stand pipe, the curved pipe curvature radius R1 is not less than 1.2 times of the stand pipe body radius and not more than 2 times of the stand pipe body radius, and in the embodiment, R1 is preferably 1.5 times of the stand pipe body radius; the deflection angle θ of the curved pipe opening with the horizontal plane ranges from 30° to 45°, and in the embodiment, 37° is preferably selected. The stand pipe water flow can be smoothly guided into the groove spiral guide vane. As shown in FIG. 6(c), the curved pipe axis of the curved pipe shaped upper curved surface guide vane 3 and the tangential water inlet horizontal branch pipe interface 2 axis angle γ ranges from 45° to 70°, and in the embodiment, 65° is preferably selected, so as to guide the upper stand pipe water flow to deflect and flow into the groove type spiral guide vane 6 for rectification, the spiral wall-attached water flow is formed through the groove type spiral guide vane rectification, and the finally formed water flow pattern is shown in FIG. 6(b), in which W1 is the stand pipe water flow deflection direction through the upper curved surface guide vane and is guided into the groove spiral guide vane deflected water flow; W2 is the tangential water inlet rotating water flow; and W3 is the spiral wall-attached water flow rectified through the groove type spiral guide vane.

[0058] The expansion section 4 of the rectification type reinforced cyclone is a hollow cylindrical structure with a wall thickness of 3.5 mm to 6 mm, and in the embodiment, 5.5 mm is preferably selected, and the diameter is usually greater than the diameter of the connected stand pipe and not more than 1.5 times of the diameter of the stand pipe, and in the embodiment, the diameter is preferably 1.5 times of the diameter of the stand pipe. The rectification type reinforced cyclone adopts the structure design of the expansion section 4, so as to ensure that there is enough ventilation passage cross-sectional area at the junction of the stand pipe water flow and the horizontal branch pipe water flow, so as to reduce the ventilation resistance, reduce the pressure fluctuation in the stand pipe, and prevent the water seal from being damaged.

[0059] Referring to Fig. 7(a), the cone section 5 of the rectified reinforced cyclone is a hollow cone structure which is a transition between the expansion section 4 and the lower standpipe interface 7. The cone angle β° of the cone section ranges from 10° to 15°, and the preferred value in this embodiment is 12.5°. The tangential water inlet horizontal branch pipe interface 2 of the rectified reinforced cyclone is used to connect the drainage horizontal branch pipe of the sanitary appliance drainage, and is composed of a curved pipe body and a socket interface which are connected to the expansion section 4 of the rectified reinforced cyclone. The curved pipe body of the tangential water inlet horizontal branch pipe interface 2 is connected to the expansion section 4 of the rectified reinforced cyclone tangentially and downwardly at an angle of 45°, and the curvature radius R of the curved pipe body should be not less than 1.2 times and not more than 2 times the radius of the standpipe body, and the preferred value in this embodiment is 1.5 times the radius of the standpipe body. The tangential water inlet horizontal branch pipe interface 2 preferably uses a socket interface, and other interface forms can also be used.

[0060] Referring to Fig. 7(b), the groove-type spiral guide vane sectional view is a normal sectional dimension view which is perpendicular to the spiral line of the spiral guide vane body. Unlike the flat plate guide vane in the conventional reinforced cyclone, the groove-type spiral guide vane 6 of the rectified reinforced cyclone is a guide vane structure which is attached to the inner wall of the cone section, has a groove-shaped cross section with a groove wall 602, and has a spiral curved groove bottom plate 601 as the groove bottom surface. This groove-shaped structure with the spiral curved groove bottom plate 601 and the groove wall 602 can effectively prevent the water flow from drifting to the center of the rectified reinforced cyclone and reducing the air passage, and can ensure that the air passage in the center of the rectified reinforced cyclone has a large enough cross-sectional area even at a large drainage flow rate, thereby reducing the air passage resistance and the pressure fluctuation amplitude in the standpipe. The maximum width L of the groove-type spiral guide vane 6 should be not less than half the inner diameter of the expansion section 4, but there is an upper limit requirement. The pipe in the drainage standpipe should meet the ball passage test requirement, and the diameter of the test ball is two-thirds of the inner diameter of the standpipe. Therefore, it is necessary to ensure that a ball with a diameter of two-thirds of the inner diameter of the standpipe can pass through the rectified reinforced cyclone. In this embodiment, the value of L is equal to half the inner diameter of the expansion section 4. The height H of the groove wall 602 ranges from 15 mm to 25 mm, and the preferred value in this embodiment is 20 mm. The included angle α between the groove wall and the spiral curved groove bottom plate 601 ranges from 90° to 120°, and the preferred value in this embodiment is 100°. A smooth transition is adopted, and the R' roundness ranges from 15 mm to 25 mm, and the preferred value in this embodiment is 18 mm. The thickness δ of the groove-type spiral guide vane 6 ranges from 4.5 mm to 7 mm, and the preferred value in this embodiment is 5.5 mm.

[0061] Combining with Fig. 7(a), Fig. 7(c), the starting point of the groove spiral guide vane 6 is located at the angle θ° with the axis of the tangential water inlet cross branch pipe interface 2, θ° is in the range of 30°-35°, and the embodiment is preferably 33°, the groove spiral guide vane 6 is counterclockwise downward along the spiral shape of 100°-150° (the embodiment is preferably 120°) with the helix angle of 45°-55° (the embodiment is preferably 50°). Combining with the water flow pattern of Fig. 6(c), the upper stand pipe water flow and the cross branch pipe water flow fall into the structure of the groove spiral guide vane 6 with a certain helix angle and smooth spiral surface, and smoothly contact with it, avoid and reduce the phenomenon of water splash in the traditional reinforced cyclone, reduce the air content of water foam and the density of mixed gas in the straightening reinforced cyclone, reduce the ventilation resistance and the pressure fluctuation amplitude in the stand pipe.

[0062] The innovative structural design of the straightening reinforced cyclone completely changes the water flow pattern of the reinforced cyclone, whether the upper stand pipe water flow and the cross branch pipe water flow enter the straightening reinforced cyclone at the same time or separately, they will be straightened into spiral wall-attached water flow, so that the drainage capacity (drainage flow) of the drainage stand pipe system using the straightening reinforced cyclone is further improved, the pressure fluctuation is reduced, the water seal damage caused by this is avoided, and the sanitary safety performance of the building drainage system is improved.

[0063] The above-mentioned embodiments are only used to illustrate the present application, and are not limited to the present application. Any skilled person in the art can make various modifications, changes or replacements without departing from the technical scope disclosed in the present application, therefore all equivalent similar technical methods should be covered in the patent protection scope of the present application.

Claims

1. A rectifier-type enhanced cyclone separator for building drainage risers, the main body of the rectifier-type enhanced cyclone separator comprising a hollow expansion section (4) and a conical section (5); the upper part of the expansion section (4) of the rectifier-type enhanced cyclone separator is provided with a riser interface for connecting to the drainage riser, and the side of the expansion section of the rectifier-type enhanced cyclone separator is provided with a horizontal branch pipe interface with a tangential water inlet structure for connecting to the guide inlet of the drainage horizontal branch pipe to form a tangential water inlet; characterized in that: The rectifier-type enhanced cyclone separator has a grooved spiral guide vane (6) on the inner wall of the cone section (5) for rectifying the water flow in the riser and the water flow in the horizontal branch pipe. Below the upper riser interface (1), there is also an upper curved guide vane (3) for guiding the water flow in the upper riser to deflect and flow into the grooved spiral guide vane (6) for rectification.

2. A flow-rectifying enhanced cyclone separator for building drainage risers according to claim 1, characterized in that: The starting point of the grooved spiral guide vane (6) is located at an angle θ° with the axis of the tangential water inlet horizontal branch pipe interface (2), and the range of θ° is 30° to 35°; the grooved spiral guide vane (6) rotates 100° to 150° counterclockwise downward along the spiral with a spiral rise angle of 45° to 55°.

3. A rectifier-type enhanced cyclone separator for building drainage risers according to claim 2, characterized in that: The grooved spiral guide vane (6) has a ditch-shaped structure, which is composed of the groove sidewall (602) and the groove bottom plate (601). The groove bottom plate (601) is attached to the inner wall of the cone section (5) and has a spiral curved surface.

4. A flow-rectifying enhanced cyclone separator for building drainage risers according to claim 3, characterized in that: The angle α° between the trench wall (602) and the trench bottom plate (601) ranges from 90° to 120°.

5. A flow-rectifying enhanced cyclone separator for building drainage risers according to claim 4, characterized in that: The height H of the trench along the wall (602) ranges from 15mm to 25mm.

6. A flow-rectifying enhanced cyclone separator for building drainage risers according to claim 5, characterized in that: The widest dimension L of the grooved spiral guide vane (6) is not less than half the inner diameter of the expansion section (4).

7. A rectifier-type enhanced cyclone separator for building drainage risers according to claim 6, characterized in that: The thickness δ of the grooved spiral guide vane (6) ranges from 4.5 mm to 7 mm.

8. A flow-rectifying enhanced cyclone separator for building drainage risers according to claim 7, characterized in that: The trench wall (602) and the trench bottom plate (601) are connected by a rounded corner, and the radius R′ of the rounded corner is in the range of 15mm to 25mm.

9. A flow-rectifying enhanced cyclone separator for building drainage risers according to any one of claims 1 to 8, characterized in that: The upper curved guide vane (3) is a curved structure in the shape of a bent tube. The opening of the bent tube faces the grooved spiral guide vane (6). The radius of curvature R1 of the bent tube is not less than 1.2 times the radius of the riser tube and not more than 2 times the radius of the riser tube. The deflection angle θ between the opening of the bent tube and the horizontal plane is in the range of 30° to 45°.

10. A flow-rectifying enhanced cyclone separator for building drainage risers according to claim 9, characterized in that: The angle γ° between the bend axis of the upper curved guide vane (3) and the axis of the tangential inlet horizontal branch pipe interface (2) is 45° to 70°.

11. A flow-rectifying enhanced cyclone separator for building drainage risers according to claim 10, characterized in that: The tangential water inlet structure of the horizontal branch pipe interface (2) of the rectifier-type enhanced cyclone includes a curved pipe body connected to the expansion section (4) and an interface connected to the drainage horizontal branch pipe. The curved pipe body of the horizontal branch pipe interface (2) is tangentially connected to the outer circle of the expansion section (4) and downward at 45° to form a whole. The curvature radius R of the curved pipe body is not less than 1.2 times the radius of the riser pipe body and not greater than 2 times the radius of the riser pipe body.

12. A flow-rectifying enhanced cyclone separator for building drainage risers according to claim 11, characterized in that: The expansion section (4) of the rectifier-type enhanced cyclone separator is a hollow cylindrical structure with a diameter greater than the diameter of the connected drainage riser but not more than 1.5 times the diameter of the drainage riser.

13. A flow-rectifying enhanced cyclone separator for building drainage risers according to claim 12, characterized in that: The conical section (5) of the rectifier-type enhanced cyclone separator is a hollow conical structure that transitions between the expansion section (4) and the lower riser interface (7). The cone angle β° of the conical section ranges from 10° to 15°.

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