CN213512585U - Rotational flow three-way single vertical pipe system - Google Patents

Abstract

The utility model discloses a special cyclone three-way single-riser system, which comprises a cyclone three-way, an upper layer main drainage pipeline connected to the upper part of the cyclone three-way, a lower layer main drainage pipeline connected to the lower part of the cyclone three-way and a side drainage pipeline connected to the side part of the cyclone three-way; the rotational flow tee joint comprises a first water inlet pipe, a second water inlet pipe, a pipe joint and a pipe cover, wherein the second water inlet pipe is connected with the side wall of the first water inlet pipe and is internally communicated with the first water inlet pipe; the tube cap comprises a movable tube capable of rotating 360 degrees around the axis of the tube cap and a connecting tube arranged above the movable tube, wherein the connecting tube and the movable tube form an eccentric structure. The utility model provides a position of connecting pipe can be revised to the tube cap, and then adapts to various installation scenes, avoids sewage to drip simultaneously in the junction, influences the drainage effect, and dirty/waste water whirl is discharged, avoids the formation of water stopper, noise abatement.

Description

Rotational flow three-way single vertical pipe system

Technical Field

The utility model relates to a building drainage technical field especially relates to a whirl tee bend single riser system.

Background

At present, the building drainage system adopts two modes for drainage:

the first is to adopt a double-riser drainage system, namely the drainage system comprises two risers, one is used for drainage inside the building, and the other is used for ventilation of the drainage system, but when the drainage system is generally adopted for drainage, because of the existence of the double risers, the drainage pipeline occupies a larger space inside the building, and the flow rate of sewage/waste water discharged in the pipeline is larger, so that the drainage system generates larger noise during drainage, and the normal life of residents is seriously disturbed.

The second is to adopt single riser drainage system, utilize a riser to carry out drainage and exhaust simultaneously promptly, but to current single riser system, when the sewage that the upper strata discharged passes through the junction of lower floor's branch pipe and single riser, sewage often can drip on this junction, splash the splash, and then influence the drainage and the exhaust function of single riser, sewage can flow into the branch pipe from single riser even, in addition, if the drainage pipe of upper strata and lower floor drainage pipe are not on same axis when, then can't dock upper drainage pipe and lower floor drainage pipe, seriously hinder the construction process.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a rotational flow three-way single-riser system, which comprises a rotational flow three-way, an upper layer main drainage pipeline connected to the upper part of the rotational flow three-way, a lower layer main drainage pipeline connected to the lower part of the rotational flow three-way and a side drainage pipeline connected to the side part of the rotational flow three-way; the rotational flow tee joint comprises a first water inlet pipe, a second water inlet pipe, a pipe joint and a pipe cover, wherein the second water inlet pipe is connected with the side wall of the first water inlet pipe and is internally communicated with the first water inlet pipe; the tube cap comprises a movable tube capable of rotating 360 degrees around the axis of the tube cap and a connecting tube arranged above the movable tube, wherein the connecting tube and the movable tube form an eccentric structure.

Preferably, the tube cover further comprises a flow guide tube which passes through the hollow part of the movable tube and is connected with the bottom end of the connecting tube.

Preferably, the draft tube is a closing structure with a top opening larger than a bottom opening.

Preferably, at the connecting position of the first water inlet pipe and the second water inlet pipe, the inner wall of the first water inlet pipe is tangent to the inner wall of the second water inlet pipe; and the connecting part of the second water inlet pipe and the first water inlet pipe is a pipe wall cavity with an expanded volume: one end of the second water inlet pipe, which is far away from the first water inlet pipe, is provided with a horizontal pipe connector which is obliquely arranged.

Preferably, the included angle between the horizontal pipe joint and the first water inlet pipe is 90-100 degrees; the included angle between the first water inlet pipe and the second water inlet pipe is 30-60 degrees.

Preferably, a baffle is further arranged at the connecting part of the first water inlet pipe and the second water inlet pipe.

Preferably, the first water inlet pipe is of a funnel-shaped structure with an expanded upper end and a reduced lower end.

Preferably, the bottom end of the draft tube is sleeved with the first water inlet tube, and a gap is formed between the part of the draft tube extending into the first water inlet tube and the inner wall of the first water inlet tube.

Preferably, an expansion joint is further arranged between the pipe cover and the upper-layer main drainage pipeline; the telescopic joint comprises an upper cup body and a lower cup body which are sleeved with each other, wherein the upper cup body is communicated with the upper layer main drainage pipeline, and the lower cup body is inserted into the connecting pipe and communicated with the interior of the pipe cover; and a sealing ring is arranged on the inner wall of the upper end of the telescopic joint.

Preferably, the swirl tee joint further comprises a vertical pipe connected with the lower-layer main drainage pipeline, wherein a connecting piece which is sleeved with the lower end of the vertical pipe and the upper end of the lower-layer main drainage pipeline is further arranged at the joint of the vertical pipe and the lower-layer main drainage pipeline; the connecting piece is also provided with a plurality of mounting holes; and spiral guide ribs are arranged on the inner walls of the upper-layer main drainage pipeline and the lower-layer main drainage pipeline.

By adopting the technical scheme, the utility model discloses mainly have following technological effect:

1. through setting up the tube cap with pipe connector swing joint for operating personnel can revise the position of connecting pipe according to upper strata main drainage pipe's position, makes the position of connecting pipe just in time dock with upper drainage pipe's position, and then makes the tube cap can dock with upper strata main drainage pipe, adapts to various installation scenes.

2. Through setting up the upper end opening and being greater than the lower extreme opening, have the honeycomb duct of binding off structure, discharge sewage drainage to the hollow portion of first inlet tube, and then avoid sewage water droplet to drop in the intercommunication department of second inlet tube and first inlet tube, influence drainage effect.

3. The inner wall through with first inlet tube is tangent with the inner wall of second inlet tube to make the sewage that comes from in the second inlet tube can follow the inner wall whirl adherence entering first inlet tube of second inlet tube when discharging, avoid forming the water plug.

4. Through setting up the pipe wall cavity, increase sewage hugs closely the curvature radius of pipe wall whirl when discharging from the second inlet tube, when sewage discharge capacity is great, effectively reduces the discharge rate of sewage, and then ensures that sewage can hug closely the discharge of pipe wall whirl, avoids because of the curvature radius undersize of connection position pipeline, and when sewage discharge capacity is big, the sewage is direct when discharging from the pipeline direct current and cause the drainage big noise, reduces pipeline life.

5. Through setting up the baffle for when sewage in the second inlet tube can get into the first inlet tube discharge according to the direction whirl of predetermineeing in advance, can also block the reverse second inlet tube that gets into of sewage in the first inlet tube, with the drainage efficiency in the reinforcing whirl tee bend.

6. Through setting up can take place relative slip telescopic joint between can and the upper strata water main drainage pipeline, reduce in the pipeline dirty/waste water because of the expend with heat and contract with cold that the difference in temperature arouses the influence to the pipeline.

7. Through setting up the pipeline including spiral helicine guide muscle, reduce the velocity of flow when dirty/waste water is discharged in drainage pipe, keep the atmospheric pressure balance among the drainage pipe, noise when further reducing the drainage reduces the interference to resident normal life.

Drawings

Fig. 1 is a schematic structural view of a rotational flow three-way single riser system of the present invention;

FIG. 2 is a schematic structural view of a cyclone tee in a cyclone tee single-riser system according to the present invention;

FIG. 3 is a schematic structural view of an expansion joint in a cyclone three-way single riser system of the present invention;

fig. 4 is a schematic structural view of a swirl tee (another view angle) in the swirl tee single-riser system of the present invention;

FIG. 5 is a schematic structural view of a pipe cap in a cyclone three-way single-riser system according to the present invention;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;

FIG. 7 is a schematic structural view of a cyclone tee (without a pipe cover) in a cyclone tee single-riser system

FIG. 8 is a schematic structural view of a connecting member in a cyclone three-way single riser system according to the present invention;

FIG. 9 is a schematic structural view of a main drainage pipeline in a cyclone three-way single-riser system according to the present invention;

wherein the reference numerals have the following meanings:

1. a rotational flow tee joint; 11. a first water inlet pipe; 12. a second water inlet pipe; 13. a pipe interface; 14. A tube cover; 141. a connecting pipe; 1411. a reinforcing sheet; 142. a movable tube; 143. a flow guide pipe; 15. a riser; 16. a tube wall cavity; 17. a baffle plate; 18. an expansion joint; 181. an upper cup body; 182. a lower cup body; 183. a seal ring; 184. a nut ring; 19. a connecting member; 191. mounting holes;

2. an upper layer of a main drainage pipeline; 21. a guide rib;

3. a lower-layer main drainage pipeline;

4. a side drain pipeline; 41. the horizontal pipe connector.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1-9, the utility model provides a whirl tee bend single riser system, whirl tee bend single riser system is when actual installation, connects between upper and lower floor's main drainage pipe, and communicates respectively with upper and lower floor's main drainage pipe, and it includes whirl tee bend 1, connects upper strata main drainage pipe 2 on whirl tee bend 1 upper portion, connects lower floor's main drainage pipe 3 in whirl tee bend 1 lower part and connects the side drainage pipe 4 at whirl tee bend 1 lateral part. It should be noted that, hereinafter, sewage refers to water discharged from a toilet, and waste water refers to water discharged from a shower, a wash basin, or the like.

In this embodiment, the upper layer main drainage pipeline 2 is used for receiving sewage discharged from the upper layer; the side drainage pipeline 4 can be communicated with a toilet drain outlet and is used for receiving sewage discharged by the toilet drain outlet; the lower layer of the main drainage pipeline 3 is used for receiving all the sewage collected by the single vertical pipe system and discharging the sewage into a drainage system.

The swirl tee 1 comprises a first inlet pipe 11, a second inlet pipe 12, a pipe interface 13, a pipe cover 14 and a stand pipe 15. Wherein, first inlet tube 11 links to each other and inside intercommunication with second inlet tube 12, and at the position of being connected of first inlet tube and second inlet tube 12, the inner wall of first inlet tube 11 is tangent with the inner wall of second inlet tube 12 to make the sewage that comes from in the second inlet tube 12 can follow the inner wall whirl adherence entering first inlet tube 11 of second inlet tube 12. The pipe joint 13 is connected with the top end of the first water inlet pipe 11 and is internally communicated with the first water inlet pipe 11 and is used for connecting the first water inlet pipe 11 with other drainage pipe fittings; one end of the pipe cover 14 is movably connected with the pipe interface 13, that is, the pipe cover 14 is movably connected with the first water inlet pipe 11 through the pipe interface 13 and is internally communicated. In this embodiment, the first water inlet pipe 11, the second water inlet pipe 12 and the pipe joint 13 are integrally formed, and the integrally formed structure can reduce the possibility of leakage of wastewater or sewage from the swirl tee 1, thereby improving the sealing performance of the swirl tee 1 in the drainage process.

In this embodiment, the second water inlet pipe 12 may be communicated with a toilet drain outlet of a toilet for receiving sewage from the toilet drain outlet, specifically, a horizontal pipe joint 41 is disposed at one end of the second water inlet pipe 12 away from the first water inlet pipe 11, the horizontal pipe joint 41 may connect and internally communicate the side drain pipe 4 connected with the toilet drain outlet with the second water inlet pipe 12, and further, the sewage from the toilet is collected into the drain system after being guided into the three-way pipe fitting. Further, for avoiding sewage to stop in horizontal pipe joint 41, in this embodiment, horizontal pipe joint 41 inclines certain angle and sets up, through with horizontal pipe joint 41 slope setting after, the sewage that gets into in horizontal pipe joint 41 can get into second inlet tube 12 fast under the effect of self gravity, effectively avoids sewage to stop in order to block up drainage channel, improves sewage discharge rate. Preferably, in this embodiment, the included angle between the horizontal pipe joint 41 and the first water inlet pipe 11 is 90 to 100 °, that is, the included angle between the side water discharge pipe 4 and the first water inlet pipe 11 is 90 to 100 °.

Further, the pipe wall cavity 16 that the connection position of second inlet tube 12 and first inlet tube 11 is the bulky, when sewage gets into first inlet tube 11 along second inlet tube 12, the existence of pipe wall cavity 16 can increase the curvature radius that sewage hugs closely the pipe wall whirl, when sewage discharge capacity is great, still can effectively reduce the discharge rate of sewage, and then ensure that sewage can hug closely the pipe wall whirl and discharge, avoid because of the curvature radius undersize of connection position pipeline, when sewage discharge capacity is big, sewage is big from the straight-flow discharge in the pipeline and the noise is big when causing the drainage, reduce pipeline life scheduling problem. In addition, in this embodiment, the pipe wall cavity 16 is obliquely arranged, so that a certain included angle exists between the second water inlet pipe 12 and the first water inlet pipe 11, and further sewage entering the second water inlet pipe 12 can rapidly enter the first water inlet pipe 11 under the action of self gravity, and the sewage is effectively prevented from stopping in the second water inlet pipe 12 to block a drainage channel, so that the sewage discharge rate is increased. Preferably, in this embodiment, the included angle between the first inlet pipe 11 and the second inlet pipe 12 is 30 ° to 60 °.

Further, when sewage or waste water whirl in for avoiding upper drainage pipe 2 gets into first inlet tube 11, or when sewage gets into first inlet tube 11 from second inlet tube 12 whirl, sewage can be followed the juncture of first inlet tube 11 and second inlet tube 12 and washed out second inlet tube 12, thereby cause the sewage convection, and then influence whirl tee bend 1's drainage efficiency, in this embodiment, first inlet tube 11 still is equipped with a baffle 17 with the junction of second inlet tube 12, after through setting up baffle 17, not only can make the sewage in the second inlet tube 12 can get into first inlet tube 11 according to the direction of predetermineeing, can also block that sewage in the first inlet tube 11 reversely gets into in the second inlet tube 12, with the drainage efficiency in the reinforcing whirl tee bend 1.

In this embodiment, first inlet tube 11 designs for an upper end is expanded, and the funnel-shaped structure that the lower extreme dwindles for when sewage adherence whirl on the inner wall of first inlet tube 11, its whirl radius is by big dwindling gradually, thereby has improved the discharge rate of sewage, has reduced the noise of drainage in-process simultaneously, further reduces the interference to resident's life.

The pipe cover 14 includes a connecting pipe 141, a movable pipe 142 and a flow guiding pipe 143, wherein the connecting pipe 141 is a circular pipe for connecting the swirl tee 1 with the upper main drainage pipeline 2 and receiving sewage from the upper main drainage pipeline 2. The bottom end of the connecting tube 141 is connected to the top end of the movable tube 142, and in this embodiment, the area of the top end surface of the movable tube 142 is larger than the area of the bottom end surface of the connecting tube 141, so that the connecting tube 141 and the movable tube 142 form an eccentric structure. In addition, in order to enhance the stability of the connection between the connection pipe 141 and the movable pipe 142, a plurality of reinforcing plates 1411 for connecting the top end of the movable pipe 142 and the outer wall of the connection pipe 141 are further provided on the movable pipe 142. The draft tube 143 is connected to the bottom end of the connection tube 141 through the hollow portion of the movable tube 142, for receiving the sewage in the connection tube 141 and guiding the sewage into the lower drainage tube. In this embodiment, the connecting pipe 141, the movable pipe 142 and the flow guiding pipe 143 are also integrally formed, and the integrally formed structure can reduce the possibility of leakage of waste water or sewage from the pipe cap 14, thereby improving the sealing performance of the pipe cap 14 in the drainage process, and the manufacturing process is also simpler.

The movable tube 142 is a circular tube and is movably connected to the tube interface 13, and the movable tube 142 may be sleeved in the tube interface 13, or the tube interface 13 may be sleeved in the movable tube 142, and preferably, in this embodiment, the movable tube 142 is sleeved in a hollow portion of the tube interface 13. Wherein the movable tube 142 is capable of 360 ° rotation about its axis relative to the tube interface 13, thereby enabling 360 ° rotation of the tube cap 14. Since the connecting tube 141 and the movable tube 142 are formed in an eccentric structure, the movable tube 132 is rotated, the end surface of the connection tube 141 at the top end of the movable tube 132 will be displaced (i.e. the axis of the connection tube 141 is parallel to but not coincident with the axis of the movable tube 142, and when the movable tube 142 makes a 360 ° rotation around its own axis, the connection tube 141 will also make a rotation around the axis of the movable tube 142), so that the operator can correct the position of the connection pipe 141 according to the position of the upper level water main discharge pipeline 2 inside the building, so that the position of the connecting pipe 141 can be just butted with the position of the upper drainage pipeline 2, thereby leading the rotational flow tee joint 1 to be butted with the upper layer drainage main pipeline 2 to complete the installation of the drainage system in the building, thereby make the utility model provides a whirl tee bend single riser system adapts to various installation scenes.

In addition, the bottom end of the diversion pipe 143 is sleeved with the first water inlet pipe 11, so that the sewage in the upper layer main drainage pipeline is guided into the first water inlet pipe 11. In order to prevent the leakage of the sewage, the bottom end of the flow guide pipe 143 should extend into the first water inlet pipe 11, and a certain gap is formed between the portion of the flow guide pipe 143 extending into the first water inlet pipe 11 and the inner wall of the first water inlet pipe 11, so that when the pipe cover 14 is rotated, the portion of the flow guide pipe 143 extending into the first water inlet pipe 11 can be rotated in the hollow portion of the first water inlet pipe 11.

Furthermore, in order to avoid the situation that the sewage in the flow guide pipe 143 rushes out of the flow guide pipe 143, and due to the lack of the flow guide effect of the wall of the flow guide pipe 143, the rotational flow direction of the sewage is changed, so that the sewage drops at the communication position between the second water inlet pipe 12 and the first water inlet pipe 11, and splashes water splash, and further the drainage and exhaust functions of the first water inlet pipe 11 are affected, in this embodiment, the flow guide pipe 143 is designed to be a closing-up structure with an upper end opening larger than a lower end opening. After the guide pipe 143 is configured as above, when the sewage flows from the guide pipe 143 to the first inlet pipe 11, the sewage is guided to the hollow portion of the first inlet pipe 11 along with the pipe wall of the guide pipe 143, so as to prevent the sewage from dropping on the communication position between the second inlet pipe 12 and the first inlet pipe 11. The structure of the flow guide tube 143 is not particularly limited, for example, the flow guide tube 143 may be an inverted circular truncated cone or an eccentric circular truncated cone, or may be a structure in which a circular tube is connected to an inverted circular truncated cone or an eccentric circular truncated cone, preferably, in this embodiment, the flow guide tube 143 is designed to have an upper end of the circular tube and a lower end of the circular truncated cone, and the diameter of the circular tube is the same as that of the bottom end of the circular truncated cone, and the circular tube is coaxially connected to the circular truncated cone.

Furthermore, one end of the vertical pipe 15 is connected with the first water inlet pipe 11 and is communicated with the inside of the vertical pipe, and the other end of the vertical pipe is connected with the lower-layer main drainage pipeline 3 and is used for draining sewage in the rotational flow tee joint 1 to the lower-layer main drainage pipeline 3. In this embodiment, the vertical pipe 15 is a single vertical pipe, and the single vertical pipe can realize the functions of drainage and exhaust at the same time, thereby significantly saving the building space. In addition, the first water inlet pipe 11 and the vertical pipe 15 in this embodiment can also effectively avoid the formation of a water plug (when sewage or wastewater is discharged in a swirling manner closely to the pipe wall of the water discharge pipe in a normal condition, when the swirling flow is discharged, a hollow air column is formed in the center of the water discharge pipe for discharging exhaust gas, and if the sewage/wastewater is discharged directly from the hollow part of the first water inlet pipe 11 or the vertical pipe 15 instead of being discharged in a swirling manner closely to the inner wall of the first water inlet pipe 11 or the vertical pipe 15, the sewage/wastewater occupies a passage through which gas is discharged from the first water inlet pipe 11 or the vertical pipe 15, and when exhaust gas cannot be discharged, the first water inlet pipe 13 or the vertical pipe 15 is blocked).

Since the temperature of the sewage/wastewater from the upper main drainage pipeline 2 varies according to the source, the temperature of the sewage/wastewater varies, for example, the temperature of the wastewater generated by showering is higher than that of normal domestic water by about 30 ℃, and the temperature difference between the sewage/wastewater causes thermal expansion and contraction of the pipeline. Therefore, in order to reduce the influence of expansion with heat and contraction with cold on the pipeline, in this embodiment, an expansion joint 18 is further disposed between the pipe cover 14 and the upper-layer main drainage pipeline 2, and a lower end of the expansion joint 18 is inserted into the pipe cover 14, connected with the connecting pipe 141, and communicated with the inside. In order to improve the connection tightness, an adhesion mode can be supplemented in the insertion process, and the upper end of the telescopic joint 18 is connected with and communicated with the upper-layer main drainage pipeline 2. Specifically, the telescopic joint 18 comprises an upper cup body 181 and a lower cup body 182 which are sleeved with each other, the upper cup body 181 is communicated with the upper-layer main drainage pipeline 2, the upper cup body 181 and the upper-layer main drainage pipeline 2 can slide relatively, and the telescopic range of the telescopic joint 18 can reach 102mm at most. The lower cup 182 is inserted into the connection pipe 141 and communicates with the pipe cover 14. In addition, in this embodiment, in order to improve the sealing performance of the connection between the telescopic joint 18 and the upper main drainage pipeline 2, a sealing ring 183 and a nut ring 184 for fixing the sealing ring 183 are disposed on the inner wall of the upper end of the telescopic joint 18, wherein the nut ring 184 is in threaded connection with the upper cup 181, and an operator can fix the sealing ring 183 on the inner wall of the upper end of the upper cup 181 by rotating the nut ring 184.

The lower-layer main drainage pipeline 3 is connected with the lower end of the vertical pipe 15 and used for guiding sewage in the rotational flow tee joint 1 to a drainage system, a connecting piece 19 is further arranged at the joint of the vertical pipe 15 and the lower-layer main drainage pipeline 3 for improving the sealing performance of the vertical pipe 15 and the lower-layer main drainage pipeline 3, and the connecting piece 19 is simultaneously sleeved with the lower end of the vertical pipe 15 and the upper end of the lower-layer main drainage pipeline 3, so that the vertical pipe 15 is connected with the lower-layer main drainage pipeline 3 and is communicated with the interior of the lower-. Of course, in this embodiment, the sealing performance of the connection part 19 with the vertical pipe 15 and the lower-layer main drainage pipeline 3 can be improved by means of adhesion or the like. In addition, in order to facilitate the installation of the connecting member 19 on the floor slab, the connecting member 19 is further provided with a plurality of installation holes 191, and an operator can fix the connecting member 19 on the floor slab by nailing iron nails into the installation holes 191.

When dirty/waste water is discharged in upper water main drainage pipe 2 or lower floor's water main drainage pipe 3, for further guide dirty/waste water whirl is discharged, avoid the formation of water stopper, in this embodiment, all be equipped with spiral helicine guide muscle 21 on upper water main drainage pipe 2 and lower floor's water main drainage pipe 3's the inner wall, after through setting up guide muscle 21, not only can guide the dirty/waste water whirl in upper water main drainage pipe 2 or lower floor's water main drainage pipe 3 and discharge, can also reduce the velocity of flow when dirty/waste water discharges in drainage pipe, keep the atmospheric pressure balance in the drainage pipe, noise when further reducing the drainage, reduce the interference to resident's normal life.

Finally, it should be noted that: the embodiment of the present invention is only disclosed as a preferred embodiment of the present invention, and is only used for illustrating the technical solution of the present invention, not limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. A swirl tee single-riser system is characterized by comprising a swirl tee (1), an upper layer main drainage pipeline (2) connected to the upper part of the swirl tee (1), a lower layer main drainage pipeline (3) connected to the lower part of the swirl tee (1) and a side drainage pipeline (4) connected to the side part of the swirl tee (1); the rotational flow tee joint (1) comprises a first water inlet pipe (11), a second water inlet pipe (12) which is connected with the side wall of the first water inlet pipe (11) and is internally communicated, a pipe joint (13) which is connected with the top end of the first water inlet pipe (11) and is internally communicated, and a pipe cover (14) which is movably connected with the pipe joint (13); the tube cover (14) comprises a movable tube (142) capable of rotating 360 degrees around the axis of the tube cover and a connecting tube (141) arranged above the movable tube (142), wherein the connecting tube (141) and the movable tube (142) form an eccentric structure.

2. A cyclone three-way single riser system according to claim 1, wherein the cap (14) further comprises a guide pipe (143), and the guide pipe (143) is connected to the bottom end of the connection pipe (141) through the hollow portion of the movable pipe (142).

3. A cyclonic three-way single riser system as claimed in claim 2, wherein the draft tube (143) is of a closed configuration with a top opening larger than a bottom opening.

4. A cyclone three-way single riser system according to any of the claims 1-3, characterized in that at the connection of the first inlet conduit (11) and the second inlet conduit (12), the inner wall of the first inlet conduit (11) is tangential to the inner wall of the second inlet conduit (12); the connecting part of the second water inlet pipe (12) and the first water inlet pipe (11) is a pipe wall cavity (16) with an expanded volume; one end of the second water inlet pipe (12) far away from the first water inlet pipe (11) is provided with a cross pipe connector (41) which is obliquely arranged.

5. A cyclone three-way single riser system according to claim 4, characterized in that the angle between the horizontal pipe connection (41) and the first inlet pipe (11) is 90 ° -100 °; the included angle between the first water inlet pipe (11) and the second water inlet pipe (12) is 30-60 degrees.

6. A cyclone three-way single riser system according to any of claims 1-3, characterized in that the connection of the first inlet conduit (11) and the second inlet conduit (12) is further provided with a baffle (17).

7. A cyclone three-way single riser system according to any of claims 1-3, characterized in that the first inlet conduit (11) is of a funnel-like structure with an enlarged upper end and a reduced lower end.

8. A cyclone three-way single riser system according to claim 2 or 3, characterized in that the bottom end of the flow guide tube (143) is sleeved with the first inlet pipe (11), and the part of the flow guide tube (143) extending into the first inlet pipe (11) has a gap with the inner wall of the first inlet pipe (11).

9. A cyclone three-way single riser system according to any one of claims 1-3, characterized in that a telescopic joint (18) is arranged between the tube cover (14) and the upper level main drainage pipeline (2); the telescopic joint (18) comprises an upper cup body (181) and a lower cup body (182) which are sleeved with each other, wherein the upper cup body (181) is communicated with the upper layer main drainage pipeline (2), and the lower cup body (182) is inserted into the connecting pipe (141) and is communicated with the inside of the pipe cover (14); and a sealing ring (183) is arranged on the inner wall of the upper end of the telescopic joint (18).

10. A cyclone three-way single riser system according to claim 1, wherein the cyclone three-way (1) further comprises a riser (15) connected with the lower layer main drainage pipeline (3), wherein a connecting part (19) sleeved with the lower end of the riser (15) and the upper end of the lower layer main drainage pipeline (3) is further arranged at the joint of the riser (15) and the lower layer main drainage pipeline (3); the connecting piece (19) is also provided with a plurality of mounting holes (191); and spiral guide ribs (21) are arranged on the inner walls of the upper-layer main drainage pipeline (2) and the lower-layer main drainage pipeline (3).

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