Flow guide tee joint for spiral-rib-free drainage system and spiral-rib-free drainage system

Abstract

The embodiment of the invention provides a flow guide tee joint for a spiral-rib-free drainage system and the spiral-rib-free drainage system, and relates to the field of building drainage. The flow guide tee joint for the spiral rib drainage system comprises an upper branch pipe, a lower branch pipe and a transverse branch pipe, flow dividing pieces are arranged on the upper branch pipe and located above the transverse branch pipe, the flow dividing pieces comprise the first flow dividing piece and the second flow dividing piece which intersect, and the top ends of the first flow dividing piece and the second flow dividing piece coincide; an expansion area is arranged below the splitter, and the expansion area and the splitter are arranged on the two sides of the diversion tee joint respectively; an eccentric flow guide area is arranged at the joint of the transverse branch pipe and the lower branch pipe and located below the expansion area. According to the flow guide tee joint for the drainage system without the spiral rib, gas-water separation can be achieved without adopting a spiral pipe, airflow resistance is reduced, meanwhile, interference of descending water flow on water inlet of the transverse branch pipe can be reduced, and the drainage capacity of the drainage system can be improved when the flow guide tee joint is applied to the drainage system.

Description

Technical Field

[0001] The invention relates to the technical field of building drainage, in particular to a guide tee for a drainage system without spiral ribs and a drainage system without spiral ribs. Background Art

[0002] With the continuous development of construction technology, single-standpipe drainage systems have been widely used in modern buildings. Traditionally, single-standpipe drainage systems mainly use pipes with spiral ribs. The design of these spiral ribs helps to improve the drainage capacity of the system and reduce noise. However, the size of the spiral ribs of the pipe has a significant impact on its drainage capacity, and different spiral rib sizes may lead to different drainage effects.

[0003] In the existing technology, in order to optimize the drainage performance, researchers continue to explore various design parameters of spiral ribs, such as height, spacing and angle, in order to achieve the best drainage effect. However, the existence of spiral ribs also brings some limitations, such as increased manufacturing cost and complexity, and may have an adverse effect on drainage efficiency in certain application scenarios.

[0004] Therefore, developing a drainage system without spiral rib structure and reducing manufacturing cost and complexity has become an urgent problem to be solved. Summary of the invention

[0005] The purpose of the present invention includes providing a guide tee for a drainage system without spiral ribs and a drainage system without spiral ribs, which solves the problem of increased costs caused by the setting of existing spiral ribs, and at the same time can improve the water-gas separation effect of the system, reduce airflow resistance, and thus improve the drainage capacity of the drainage system.

[0006] The embodiments of the present invention can be implemented as follows:

[0007] In a first aspect, the present invention provides a diversion tee for a drainage system without spiral ribs, comprising an upper branch pipe, a lower branch pipe and a horizontal branch pipe.

[0008] The upper branch pipe is provided with a flow dividing piece, the flow dividing piece is located above the horizontal branch pipe, the flow dividing piece includes a first flow dividing piece and a second flow dividing piece intersecting with each other, and the top ends of the first flow dividing piece and the second flow dividing piece overlap;

[0009] An expansion area is provided below the diverter plate, and the expansion area and the diverter plate are arranged on both sides of the guide tee;

[0010] An eccentric flow guide area is provided at the connection between the transverse branch pipe and the lower branch pipe, and the eccentric flow guide area is located below the expansion area.

[0011] In an optional embodiment, the angle between the first diverter plate and the second diverter plate is 40°-70°.

[0012] In a second aspect, the present invention provides a drainage system without spiral ribs, including a riser, on which are arranged two or more guide tees for the drainage system without spiral ribs as described in the aforementioned embodiment.

[0013] In an optional embodiment, a wind cap is disposed at the top of the riser, and a diversion direct pipe, a bottom discharge elbow and a discharge pipe are sequentially disposed at the bottom of the riser.

[0014] In an optional embodiment, a transverse pipe is connected to the transverse branch pipe, the axes of the transverse pipe and the vertical pipe corresponding to each diversion tee are coplanar, and the connection between the upper branch pipe, the lower branch pipe and the transverse branch pipe protrudes from the plane where the transverse pipe and the vertical pipe are located.

[0015] In an optional embodiment, the inner diameter of the cross pipe and the vertical pipe is 105-105 mm.

[0016] In an optional embodiment, the length of the flow dividing piece in the radial direction of the upper branch pipe is 7 mm-12 mm;

[0017] And / or, the length of the diverter plate in the axial direction of the upper branch pipe is 170 mm-200 mm.

[0018] In an optional embodiment, the volume of the expansion zone is increased by 8%-15% compared to the volume of a riser of the same height.

[0019] In an optional embodiment, the intersection line between the inner wall of the expansion zone and the A plane is in an arc shape, and the A plane is the plane where the axis of the horizontal pipe and the axis of the vertical pipe are located;

[0020] The arc radius corresponding to the intersection line is 400mm-450mm;

[0021] The arc corresponding to the intersection line is 0.2-0.3, or the total height of the expansion area is 500mm-550mm.

[0022] In an optional embodiment, the eccentric guide area is in an arc shape, the radius of the arc corresponding to the eccentric guide area is 150mm-200mm, the curvature of the arc corresponding to the eccentric guide area is 0.8-0.85, and the angle between the plane where the axis of the eccentric guide area is located and the horizontal plane is 41.5-46°.

[0023] The beneficial effects of the diversion tee for the spiral rib-free drainage system and the spiral rib-free drainage system provided by the embodiments of the present invention include:

[0024] The guide tee for the drainage system without spiral ribs provided in the present application can achieve gas-water separation and reduce air flow resistance without using spiral pipes. At the same time, it can reduce the interference of the descending water flow on the water inlet of the horizontal branch pipe. Its application in the drainage system is beneficial to improving the drainage capacity of the drainage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the structure of a diversion tee for a drainage system without spiral ribs provided in this application;

[0027] Figure 2 A schematic diagram of the structure of the spiral rib-free drainage system provided in this application.

[0028] Icons: 100- diversion tee; 110- upper branch pipe; 120- lower branch pipe; 130- horizontal branch pipe; 140- flow diversion plate; 141- first flow diversion plate; 142- second flow diversion plate; 150- expansion area; 160- eccentric flow diversion area; 200- vertical pipe; 300- horizontal pipe; 400- flow diversion direct pipe; 500- bottom discharge elbow; 600- discharge pipe; 700- wind cap. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0034] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0035] The embodiment of the present invention provides a guide tee 100 for a drainage system without spiral ribs, such as Figure 1 As shown, it includes an upper branch pipe 110, a lower branch pipe 120 and a horizontal branch pipe 130.

[0036] The upper branch pipe 110 is provided with a flow dividing piece 140, the flow dividing piece 140 is located above the horizontal branch pipe 130, and the flow dividing piece 140 includes a first flow dividing piece 141 and a second flow dividing piece 142 intersecting with each other, and the top ends of the first flow dividing piece 141 and the second flow dividing piece 142 overlap;

[0037] An expansion area 150 is provided below the flow dividing piece 140 , and the expansion area 150 and the flow dividing piece 140 are respectively provided on both sides of the flow guiding tee 100 ;

[0038] An eccentric flow guide area 160 is provided at the connection between the transverse branch pipe 130 and the lower branch pipe 120 , and the eccentric flow guide area 160 is located below the expansion area 150 .

[0039] When the guide tee 100 for the drainage system without spiral ribs provided in the present application is used in the drainage system for drainage, the water descending from the upper branch pipe 110 will be diverted under the action of the diverter plate 140 and enter the expansion area 150 below the diverter plate 140; the water flowing into the transverse branch pipe 130 can form a vortex under the action of the earth's rotation and the initial velocity of the water flow in the horizontal plane direction. The vortex flows with the eccentric guide area 160 and continues to form a vortex with the water from the upper branch pipe 110 in the pipeline connected to the lower branch port and flows downward. An air core is formed in the middle of the vortex. It is not necessary to use a spiral tube to achieve the separation of air and water and reduce the air flow resistance. At the same time, it reduces the interference of the descending water flow in the upper branch pipe 110 on the water inlet of the transverse branch pipe 130. The application in the drainage system is beneficial to improving the drainage capacity of the drainage system.

[0040] Specifically, the diverter 140 in the present application is arranged on the inner wall of the upper branch pipe 110 and protrudes inward to play a role in diverting the water flow, and includes a first diverter 141 and a second diverter 142, the purpose of which is to divert the water flow to the expansion area 150 to reduce the interference with the water inlet of the transverse pipe 300. In some embodiments, the first diverter 141 and the second diverter 142 can be symmetrically arranged with the plane where the center of the pipe opening of the upper branch pipe 110, the pipe opening of the lower branch pipe 120 and the pipe opening of the transverse branch pipe 130 is located as the symmetry plane; in some embodiments, the first diverter 141 and the second diverter 142 can be a plane or have a certain curvature.

[0041] In an optional embodiment, the angle between the first diverter plate 141 and the second diverter plate 142 is 40°-70°.

[0042] If the angle between the first diverter plate 141 and the second diverter plate 142 is too large, the resistance to the water coming from the upper branch pipe 110 will be too large, which is not conducive to improving the drainage capacity and will increase the drainage noise; if the angle between the first diverter plate 141 and the second diverter plate 142 is too small, it will not be able to effectively reduce the interference of the water coming from the upper branch pipe 110 on the water coming from the horizontal branch pipe 130, which may cause water plugs to form at the tee, thereby affecting or even reducing the drainage capacity.

[0043] The embodiment of the present invention also provides a drainage system without spiral ribs, such as Figure 2 As shown, it includes a riser 200, on which are disposed two or more guide tees 100 for a drainage system without spiral ribs as described in the aforementioned embodiment.

[0044] When the spiral rib-free drainage system in this embodiment drains water, the water in the horizontal branch pipe 130 enters the vertical pipe 200 from the branch port of the horizontal pipe 300 of the diversion tee 100. Due to the rotation of the earth and the initial velocity of the water flow in the horizontal direction, the Coriolis force, i.e., the geostrophic force, is generated, so that the water forms a vortex effect at the outlet of the horizontal branch pipe 130. The outlet of the horizontal pipe 300 of the diversion tee 100 has an eccentric diversion area 160, so that the water flow can be deflected and flowed along the eccentric diversion area 160, and enter the lower branch pipe 120 and the vertical pipe 200 in turn. When the water flows downward, the vortex effect is further enhanced under the action of inertia and gravity, forming a ring-shaped water film flowing downward, and an air core is formed in the middle to ensure the ventilation effect. Furthermore, when the water flow inside the vertical pipe 200 forms a vortex and moves downward into the next guide tee 100, the water flow still moves in a spiral along the wall. Affected by the diverter plate 140 inside the guide tee 100, the water flow flows along the diverter plate 140 away from the horizontal branch pipe 130 and enters the expansion area 150. The water from the horizontal branch pipe 130 will not be disturbed by the water flow of the vertical pipe 200, thereby avoiding the formation of a water plug at the intersection of the horizontal pipe 300 and the vertical pipe 200, thereby ensuring smooth ventilation.

[0045] In an optional embodiment, a hood 700 is provided at the top of the riser 200;

[0046] And / or, the bottom end of the riser 200 is sequentially provided with a diversion direct pipe 400, a bottom discharge elbow 500 and a discharge pipe 600.

[0047] The water flow in the vertical pipe 200 flows downward and enters the diversion direct pipe 400. A diversion structure is arranged in the diversion direct pipe 400. The diversion structure can have the same structural size as the diversion plate 140 in the guide tee 100, and is arranged on the inner wall of the diversion direct pipe 400 close to the discharge pipe 600, so that water flows in the bottom discharge elbow 500 along the inner wall on the side opposite to the diversion structure to the bottom of the discharge pipe 600, so that an air passage is formed above the water flow in the discharge pipe 600 and on the side of the water flow of the bottom discharge elbow 500.

[0048] The hood 700 disposed at the top of the vertical pipe 200 may be a non-powered hood 700. The provision of the hood 700 is beneficial to further improving the exhaust effect in the system.

[0049] In an optional embodiment, a transverse pipe 300 is connected to the transverse branch pipe 130, and the axes of the transverse pipe 300 and the vertical pipe 200 corresponding to each diversion tee 100 are coplanar, and the connection between the upper branch pipe 110, the lower branch pipe 120 and the transverse branch pipe 130 protrudes from the plane where the transverse pipe 300 and the vertical pipe 200 are located.

[0050] The transverse pipes 300 corresponding to different tees may be parallel or non-parallel, and the axes of the transverse pipe 300 and the vertical pipe 200 corresponding to each diversion tee 100 are coplanar. In specific applications, the number of transverse pipes 300 is related to the number of floors, and usually each floor corresponds to one transverse pipe 300.

[0051] In an optional embodiment, the inner diameters of the cross pipe 300 and the vertical pipe 200 are 105-105 mm.

[0052] In an optional embodiment, the length of the flow dividing piece 140 in the radial direction of the upper branch pipe 110 is 7 mm-12 mm;

[0053] And / or, the length of the diverter plate 140 in the axial direction of the upper branch pipe 110 is 170 mm-200 mm.

[0054] The diverter plate 140 has a certain length and depth so as to divert the water flow to the expansion area 150 , thereby reducing or even avoiding the interference of the descending water flow on the water coming from the lateral branch pipe 130 .

[0055] In an optional embodiment, the volume of the expansion area 150 is enlarged by 8%-15% compared to the volume of the riser 200 of the same height, so as to accommodate the water flow diverted by the diverter plate 140, thereby reducing or even avoiding the interference of the descending water flow on the water coming from the lateral branch pipe 130.

[0056] In an optional embodiment, the intersection line between the inner wall of the expansion area 150 and the A plane is in an arc shape, and the A plane is the plane where the axis of the transverse pipe 300 and the axis of the vertical pipe 200 are located;

[0057] The arc radius corresponding to the intersection line is 400mm-450mm;

[0058] The arc corresponding to the intersection line is 0.2-0.3, or the total height of the expansion area 150 is 500mm-550mm.

[0059] While ensuring that the cross-sectional area of ​​the expansion area 150 increases, the shape of the expansion area 150 should also be reasonably set to minimize the obstruction of the expansion area 150 to the water flow, so as to improve the drainage capacity of the drainage system.

[0060] In an optional embodiment, the eccentric guide area 160 is in an arc shape, the radius of the arc corresponding to the eccentric guide area 160 is 150mm-200mm, the curvature of the arc corresponding to the eccentric guide area 160 is 0.8-0.85, and the angle between the plane where the axis of the eccentric guide area 160 is located and the horizontal plane is 41.5-46°.

[0061] The setting of the eccentric guide area 160 adapts to and strengthens the vortex formed by the water from the horizontal branch pipe 130, so that the water flow can still swirl downward after being transferred to the vertical pipe 200.

[0062] Example 1

[0063] An embodiment of the present application provides a spiral rib-free drainage system such as Figure 1 and Figure 2 As shown, the inner diameters of the transverse tube 300 and the vertical tube 200 are both 110 mm;

[0064] The depth of the diverter 140 is 8 mm, the angle between the first diverter 141 and the second diverter 142 is 60°, and the height is 1850 mm;

[0065] The intersection line between the inner wall of the expansion area 150 and the A plane is in an arc shape, the arc radius is 425 mm, the arc is 0.25, and the total height of the expansion area is 530 mm;

[0066] The eccentric flow guide area 160 is in an arc shape, with an arc radius of 150-200 mm and an arc of 0.82. The angle between the plane where the axis of the eccentric flow guide area 160 is located and the horizontal plane is 44°.

[0067] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A diversion tee for a drainage system without spiral ribs, characterized in that: Including upper branch pipe, lower branch pipe and horizontal branch pipe, The upper branch pipe is provided with a flow dividing piece, the flow dividing piece is located above the horizontal branch pipe, the flow dividing piece includes a first flow dividing piece and a second flow dividing piece intersecting with each other, and the top ends of the first flow dividing piece and the second flow dividing piece overlap; An expansion area is provided below the diverter plate, and the expansion area and the diverter plate are respectively arranged on both sides of the guide tee; An eccentric flow guide area is provided at the connection between the transverse branch pipe and the lower branch pipe, and the eccentric flow guide area is located below the expansion area.

2. The guide tee for drainage system without spiral ribs according to claim 1, characterized in that: The angle between the first diverter plate and the second diverter plate is 40°-70°.

3. A drainage system without spiral ribs, characterized in that: It comprises a riser, on which are arranged two or more diversion tees for a drainage system without spiral ribs as claimed in claim 1 or 2.

4. The spiral rib-free drainage system according to claim 3, characterized in that: The top of the vertical pipe is provided with a wind cap, and the bottom of the vertical pipe is provided with a diversion direct pipe, a bottom discharge elbow and a discharge pipe in sequence.

5. The spiral rib-free drainage system according to claim 4, characterized in that: The horizontal branch pipe is connected to a horizontal pipe, the axes of the horizontal pipe and the vertical pipe corresponding to each diversion tee are coplanar, and the connection between the upper branch pipe, the lower branch pipe and the horizontal branch pipe protrudes from the plane where the horizontal pipe and the vertical pipe are located.

6. The spiral rib-free drainage system according to claim 5, characterized in that: The inner diameters of the transverse pipe and the vertical pipe are 105-105 mm.

7. The spiral rib-free drainage system according to claim 6, characterized in that: The length of the diverter piece in the radial direction of the upper branch pipe is 7mm-12mm; And / or, the length of the diverter plate in the axial direction of the upper branch pipe is 170 mm-200 mm.

8. The spiral rib-free drainage system according to claim 6, characterized in that: The volume of the expansion zone is increased by 8%-15% compared with the volume of a riser of the same height.

9. The spiral rib-free drainage system according to claim 8, characterized in that: The intersection line between the inner wall of the expansion zone and the A plane is in an arc shape, and the A plane is the plane where the axis of the horizontal pipe and the axis of the vertical pipe are located; The arc radius corresponding to the intersection line is 400mm-450mm; The arc corresponding to the intersection line is 0.2-0.3, or the total height of the expansion area is 500mm-550mm.

10. The spiral rib-free drainage system according to claim 6, characterized in that: The eccentric guide area is in an arc shape, the radius of the arc corresponding to the eccentric guide area is 150mm-200mm, the curvature of the arc corresponding to the eccentric guide area is 0.8-0.85, and the angle between the plane where the axis of the eccentric guide area is located and the horizontal plane is 41.5-46°.

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