Double-wall water-gas separation rotational flow drain pipe

Abstract

The invention provides a double-wall water-gas separation rotational flow drainage pipe, and belongs to the technical field of building drainage. The invention solves the problem of how to improve the drainage smoothness and reduce the drainage noise at the same time. The double-wall water-gas separation cyclone drain pipe comprises a pipe body and a pressure relief pipe located in the pipe body, a plurality of guide rib plates arranged at intervals are arranged in the pipe body around the pressure relief pipe, each guide rib plate is in a spiral shape in the axial direction of the pipe body, a flow dividing channel is formed between every two adjacent guide rib plates, and the flow dividing channels are communicated with the pressure relief pipe. A plurality of pressure relief holes are formed in the side wall of the pressure relief pipe, one end of each pressure relief hole communicates with an inner cavity of the pressure relief pipe, and the other end of each pressure relief hole correspondingly communicates with the corresponding flow dividing channel. According to the double-wall water-gas separation rotational flow drainage pipe, the drainage smoothness can be improved, and meanwhile the drainage noise is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of building drainage and relates to a double-wall water-gas separation cyclone drainage pipe. Background Art

[0002] In today's life, the drainage system is an indispensable part of buildings. The drainage system can be divided into indoor drainage system and outdoor drainage system. For the latter, it is generally arranged on the facade of the building, and is generally composed of several drainage vertical pipes and several pipe joints.

[0003] In the prior art, drainage vertical pipes are usually produced by direct injection molding or extrusion molding, with one end as a socket and the other end as a spigot, and are pre-fixed with a pipe joint in a socket-and-spigot manner, while glue is used as an auxiliary material to strengthen the connection between the pipe and the pipe joint.

[0004] However, the existing drainage system has major defects in actual use. During the downward drainage process, especially when the drainage volume is large, the internal space is occupied by the water flow, causing pressure fluctuations in the pipe. The pressure difference between the inside and outside of the pipe will cause the vertical drainage pipe to be squeezed and deformed, thereby reducing the space in the pipe and causing poor drainage. Secondly, regardless of whether the vertical drainage pipe is deformed or not, the flowing water in the pipe tends to move in free fall under the influence of gravity, which causes the flow of water to impact the pipe wall. Especially after the vertical drainage pipe is deformed, the impact is more obvious, causing the water flow to generate a lot of noise during the discharge process. Summary of the invention

[0005] The purpose of the present invention is to address the above-mentioned problems in the prior art and to propose a double-walled water vapor separation cyclone drainage pipe. The technical problem to be solved by the present invention is: how to improve drainage smoothness while reducing drainage noise.

[0006] The objective of the present invention can be achieved through the following technical solutions: a double-walled water vapor separation cyclone drainage pipe, comprising a pipe body, the double-walled water vapor separation cyclone drainage pipe also comprising a pressure relief pipe located in the pipe body, the pipe body having a plurality of guide ribs arranged at intervals around the pressure relief pipe, and each of the guide ribs is spirally shaped along the axial direction of the pipe body, a diversion channel is formed between every two adjacent guide ribs, and the plurality of diversion channels are not connected to each other, a plurality of pressure relief holes are opened on the side wall of the pressure relief pipe, one end of the plurality of pressure relief holes are connected to the cavity in the pressure relief pipe, and the other end is correspondingly connected to each of the diversion channels.

[0007] The difference between the present application and the prior art is that: first, the double-walled water-gas separation cyclone drainage pipe is fixedly connected to the pressure relief pipe inside the existing pipe body, and a number of spiral guide ribs are arranged between the two, so that a number of unconnected shunt channels are formed between the pipe body and the pressure relief pipe, and a number of pressure relief holes are opened on the pressure relief pipe to connect the cavity in the pressure relief pipe with a number of shunt channels. The main purpose of the present application is to use the shunt channels to discharge the accumulated water, and to use the pressure relief holes to allow the excess air in each shunt channel to enter the pressure relief pipe through the pressure relief holes under the action of water pressure and be discharged outward. To prevent excessive air pressure at the lower end of the drain pipe from causing poor water flow, under this premise, since each guide rib is spiral, the resulting diversion channels are also spiral. When water flows in each diversion channel, due to the guidance of the diversion channel, the water actually flows in the form of vortex. The water flowing under the centrifugal force can flow along the inner wall of the pipe body to the greatest extent, thereby preventing the water from contacting the outer wall of the pressure relief pipe during the flow, and preventing the water from entering the pressure relief pipe through the pressure relief holes on the outer wall of the pressure relief pipe, ensuring effective water-gas separation. On the basis of the above, the present application adopts a double-wall structure to replace the single-wall pipe structure in the prior art, and uses this structure to withstand the negative pressure generated in the pipe when the water flows during drainage, so as to prevent the drain pipe from being squeezed and deformed due to the different pressure differences inside and outside the drain pipe. Secondly, since the double-walled water-gas separation cyclone drain pipe is arranged vertically during laying, the water flow to be discharged enters from the upper end of the drain pipe and is discharged from the lower end. At the beginning of receiving the water flow through the drain pipe, due to the setting of numerous diversion channels, a certain amount of water flow is diverted into several streams and enters each diversion channel respectively. Compared with the ordinary drain pipe in the prior art, the setting of numerous diversion channels can reduce the actual gravitational potential energy of the water flow as a whole, thereby reducing the intensity of the water flow impacting the inner wall of the pipe, reducing the noise generation, and improving the service life of the drain pipe. On this basis, since the diversion channel is spiral, the inner wall of the diversion channel is used to guide the water flow, so that the water flow flows in a vortex when flowing downward, which guarantees the flow rate of the water flow to the greatest extent, that is, ensures the smoothness of the water flow discharge, and the water flowing in a vortex can flow along the inner wall of the drain pipe, further reducing the impact of the water flow on the inner wall of the pipe body and the outer wall of the pressure relief pipe, thereby reducing the noise generation and improving the service life of the drain pipe.

[0008] In the above-mentioned double-walled water-gas separation cyclone drainage pipe, each of the guide ribs extends to the two end ports of the pipe body, and the outer sides of several of the guide ribs are fixedly connected to the inner wall of the pipe body, and the inner sides are fixedly connected to the outer wall of the pressure relief pipe. Specifically, the guide ribs are fixedly connected to the inner wall of the pipe body and the outer wall of the pressure relief pipe, thereby ensuring that the structure of each diversion channel formed is more stable, and each guide rib extends to the two end ports of the pipe body to ensure the guiding effect of each diversion channel on the water flow.

[0009] In the above-mentioned double-wall water-gas separation cyclone drainage pipe, the pressure relief pipe and the pipe body are arranged concentrically. Through this arrangement, the required bearing forces of the plurality of diverter ribs between the pipe body and the pressure relief pipe can be made consistent, and the structural regularity of the double-wall water-gas separation cyclone drainage pipe can be ensured, effectively reducing the difficulty requirements for the mold during manufacturing, thereby achieving the purpose of controlling manufacturing costs.

[0010] In the above-mentioned double-wall water-gas separation cyclone drainage pipe, the pitches of the guide ribs are the same, thereby ensuring that the shapes of the formed several diversion channels are consistent, ensuring that the water flow velocity in each diversion channel tends to be consistent, and preventing the diversion channel with slow drainage speed from causing sediment and impurities to be deposited due to insufficient water flow velocity due to the difference in flow velocity.

[0011] In the above-mentioned double-wall water-gas separation cyclone drainage pipe, the distance between each two adjacent guide ribs gradually increases from the inside to the outside. Through this arrangement, the contact surface between the water flow and the inner wall of the pipe body can be larger, preventing water from contacting the outer wall of the pressure relief pipe during the flow process and preventing water from entering the pressure relief pipe through the pressure relief hole.

[0012] In the above-mentioned double-wall water-gas separation cyclone drainage pipe, the plurality of pressure relief holes are divided into a plurality of groups, the plurality of groups of pressure relief holes are arranged at intervals along the height direction of the pressure relief pipe, and the plurality of pressure relief holes in the same group are arranged at intervals along the circumference of the pressure relief pipe. Through this arrangement, the water flow in each diversion channel can continuously discharge the air pressure in each diversion channel to the pressure relief pipe through each group of pressure relief holes during the downward flow process, thereby ensuring the smoothness of drainage.

[0013] In the above-mentioned double-walled water vapor separation cyclone drainage pipe, the end of each pressure relief hole connected to the cavity inside the pressure relief pipe is the inner end, and the end connected to the diversion channel is the outer end. The pressure relief holes are inclined from the inner end to the outer end toward the lower end of the tube body. Through this arrangement, the inner end of each pressure relief hole is at the top and the outer end is at the bottom. When water flows in the diversion channel, due to the existence of water flow factors, the contact between the water flow and the outer wall of the pressure relief pipe is inevitable. The present application, through this arrangement, can utilize the height difference between the inner and outer ends of the pressure relief hole to block the flowing water flow. In addition, the water flow itself has the blessing of gravitational potential energy, thereby avoiding water from entering the pressure relief pipe through the pressure relief hole to the greatest extent, effectively ensuring the effect of water vapor diversion.

[0014] In the above-mentioned double-wall water-gas separation cyclone drain pipe, the inclination angle of each pressure relief hole is between 45 degrees and 75 degrees. Ensuring that the opening angle of each pressure relief hole is in line with reality can avoid the water flow being easy to pass due to too small opening angle, and can also avoid the processing difficulty being too high due to too large opening angle.

[0015] In the above double-wall water-gas separation cyclone drainage pipe, the ratio of the inner diameter of the pressure relief pipe to the pipe body is less than or equal to 1:3, so that the arrangement of the pressure relief pipe and the pipe body is more reasonable, ensuring the smooth exhaust while ensuring the water flow discharge speed.

[0016] In the above-mentioned double-wall water-gas separation cyclone drainage pipe, the two ends of the pressure relief pipe protrude from the two end ports of the pipe body. In order to prevent water from entering the pressure relief pipe through the upper end of the pressure relief pipe from the very beginning during use, this setting is used to make the pressure relief pipe more protruding than the port of the pipe body, and then prevent water from entering the pressure relief pipe through the height difference. It should be noted that the drainage system composed of the double-walled water vapor separation cyclone drainage pipe is an assembled structure. Although the two ends of the pressure relief pipe protrude from the two end ports of the pipe body, it does not affect the assembly and use. The reason is that during assembly, the two adjacent pipe bodies need to be connected through a pipe joint. The ends of the two double-walled water vapor separation cyclone drainage pipes are inserted from the two ends of the pipe joint. While the outer wall of the pipe body and the inner wall of the pipe joint are bonded by glue, the ends of the two double-walled water vapor separation cyclone drainage pipes are abutted against each other due to the center alignment. This can ensure normal connection and prevent the water vapor separation from failing due to the connection. In order to further improve the water vapor separation effect, glue can be applied to the end of the pressure relief pipe in advance during the aforementioned steps, and the gap between the two pressure relief pipe ends when they are abutted against each other can be filled with glue.

[0017] Compared with the existing technology, this double-wall water-gas separation cyclone drainage pipe has the following advantages:

[0018] 1. The double-wall structure of the pipe body and the pressure relief pipe is adopted to ensure the overall structural strength of the double-wall water-gas separation cyclone drainage pipe, and prevent the pipe body from being flattened due to the internal and external pressure difference, resulting in poor drainage.

[0019] 2. By diverting and guiding the water flow through several diversion channels, the water flow is discharged downward in the form of vortex in each diversion channel, which greatly reduces the impact of the water flow on the pipe wall, and improves and reduces noise while ensuring the drainage rate.

[0020] 3. Through the setting of each group of pressure relief holes, the water flowing in each diversion channel can press the excess air into the pressure relief pipe through the pressure relief holes to ensure the pressure balance at the upper and lower ends of the diversion flow and prevent the existence of pressure difference from causing poor drainage.

[0021] 4. Through the coordination of the spirally arranged diversion channel and the inclinedly arranged pressure relief hole, the water flows downward along the inner wall of the pipe body, preventing the water from entering the pressure relief pipe through the pressure relief hole, thereby effectively ensuring the separation of water and gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1It is a structural schematic diagram of the double-wall water-gas separation cyclone drainage pipe.

[0023] Figure 2 It is the front view of the double-wall water-gas separation cyclone drainage pipe.

[0024] Figure 3 yes Figure 2 Cross-sectional view along AA direction and its local enlarged view.

[0025] Figure 4 yes Figure 2 Cross-sectional view along direction BB.

[0026] Figure 5 It is a structural schematic diagram and a partial enlarged diagram of a pressure relief pipe and several guide ribs in the double-wall water-gas separation cyclone drainage pipe.

[0027] In the figure, 1, pipe body; 11, pressure relief pipe; 111, pressure relief hole; 12, diversion channel; 13, guide rib plate. DETAILED DESCRIPTION

[0028] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0029] like Figure 1-5 As shown, the double-wall water vapor separation cyclone drainage pipe includes a long strip-shaped pipe body 1, in which a long strip-shaped pressure relief pipe 11 is arranged concentrically with the pipe body 1, and the two ends of the pressure relief pipe 11 are respectively protruding from the two end ports of the pipe body 1, and a plurality of spaced and spiral guide ribs 13 are arranged around the pressure relief pipe 11 in the pipe body 1, the outer side of each guide rib 13 is integrally formed with the inner wall of the pipe body 1, and the inner side is integrally formed with the outer wall of the pressure relief pipe 11, and each guide rib 13 extends to the two end ports of the pipe body 1. At the edge, a spiral shunt channel 12 is formed between every two adjacent guide ribs 13, and several shunt channels 12 are not connected to each other. The spacing between the inner sides of every two adjacent guide ribs 13 is smaller than the spacing between the outer sides, so that each shunt channel 12 is narrow inside and wide outside. When water flows, its outer inner wall can provide more contact surface for water flow, thereby ensuring that the water flow maintains a high vortex while avoiding it from contacting the outer wall of the pressure relief pipe 11. In addition, the ratio of the inner diameter of the pressure relief pipe 11 to the inner diameter of the pipe body 1 is less than or equal to 1:3.

[0030] like Figure 3As shown, a plurality of pressure relief holes 111 are provided on the outer wall of the pressure relief pipe 11, and the plurality of pressure relief holes 111 are divided into a plurality of groups and are arranged at intervals along the height direction of the pressure relief pipe 11, wherein the plurality of pressure relief holes 111 in the same group are located on the same horizontal plane and are arranged at intervals along the circumference of the pressure relief pipe 11, the inner ends of the plurality of pressure relief holes 111 in the same group penetrate the inner wall of the pressure relief pipe 11, and the outer ends penetrate the outer wall of the pressure relief pipe 11 and are connected with a plurality of diversion channels 12 in a one-to-one correspondence, and in addition, the plurality of pressure relief holes 111 are arranged inclined from the inner end to the outer end toward the lower end of the pressure relief pipe 11, and the inclination angle is between 45 degrees and 75 degrees.

[0031] Working principle: water flows into the upper end of the double-wall water vapor separation cyclone drainage pipe and is discharged from the lower end of the double-wall water vapor separation cyclone drainage pipe. In this process, since the upper end of the pressure relief pipe 11 protrudes from the upper end port of the pipe body 1, the water flow cannot enter the pressure relief pipe 11. The incoming water flow is divided into several streams through the upper end ports of each diversion channel 12 and enters each diversion channel 12 respectively. Under the action of gravitational potential energy, each stream of water flows downward along the inner wall of the diversion channel 12. Through the guidance of the inner wall of the diversion channel 12, each stream of water flows downward in a vortex shape, thereby reducing the impact of the water flow on the inner wall of the pipe body 1 and The impact of the outer wall of the pressure relief pipe 11 reduces noise while ensuring the water discharge speed. Under this premise, the downward flowing water flows compress the excess air in the diversion channel 12, so that the air enters the pressure relief pipe 11 through each group of pressure relief holes 111, and the pressure relief pipe 11 discharges the air to the outside, so that the pressure in each diversion channel 12 is balanced with the external pressure. Moreover, since the pressure relief holes 111 are arranged obliquely, and the vortex-shaped water flow in the diversion channel 12 flows along the inner wall of the tube body 1, the water flows cannot overcome the gravitational potential energy and enter the pressure relief pipe 11 through the pressure relief holes 111, thereby ensuring water vapor separation.

[0032] Secondly, it is worth mentioning that the drainage system assembled by the double-walled water vapor separation cyclone drainage pipe generally also includes a number of pipe joints. Specifically, a pipe joint is arranged between two adjacent double-walled water vapor separation cyclone drainage pipes, and each double-walled water vapor separation cyclone drainage pipe is plugged into the pipe joint, and is clamped through the outer wall of the pipe body 1 and the inner wall of the pipe joint, and is bonded with glue to ensure a firm connection. At the same time, the ends of the two pressure relief pipes 11 extending into the pipe joint are abutted against each other, and the ends of the two pressure relief pipes 11 are bonded with glue applied in advance, so that the gap between the abutting points is filled.

[0033] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0034] Although the terms such as pipe body 1, pressure relief pipe 11, pressure relief hole 111, flow diversion channel 12, guide rib plate 13 are used more frequently in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A double-wall water-gas separation cyclone drainage pipe, comprising a pipe body (1), characterized in that: The double-walled water vapor separation cyclone drainage pipe also includes a pressure relief pipe (11) located in the pipe body (1), the pipe body (1) has a plurality of guide ribs (13) arranged at intervals around the pressure relief pipe (11), and each of the guide ribs (13) is spirally arranged along the axial direction of the pipe body (1), a diversion channel (12) is formed between every two adjacent guide ribs (13), and the plurality of diversion channels (12) are not connected to each other, and a plurality of pressure relief holes (111) are opened on the side wall of the pressure relief pipe (11), one end of each of the plurality of pressure relief holes (111) is connected to the cavity in the pressure relief pipe (11), and the other end is connected to each corresponding diversion channel (12).

2. The double-wall water-gas separation cyclone drain pipe according to claim 1, characterized in that: Each of the guide ribs (13) extends to the two end ports of the tube body (1), and the outer sides of several of the guide ribs (13) are fixedly connected to the inner wall of the tube body (1), and the inner sides are fixedly connected to the outer wall of the pressure relief tube (11).

3. The double-wall water-gas separation cyclone drain pipe according to claim 1 or 2, characterized in that: The pressure relief pipe (11) and the pipe body (1) are arranged concentrically.

4. The double-wall water-gas separation cyclone drain pipe according to claim 2, characterized in that: The plurality of guide rib plates (13) have the same pitch.

5. The double-wall water-gas separation cyclone drain pipe according to claim 4, characterized in that: The distance between every two adjacent guide rib plates (13) gradually increases from the inside to the outside.

6. The double-walled water-gas separation cyclone drain pipe according to claim 1, 2, 4 or 5, characterized in that: The plurality of pressure relief holes (111) are divided into a plurality of groups, the plurality of groups of pressure relief holes (111) are arranged at intervals along the height direction of the pressure relief pipe (11), and the plurality of pressure relief holes (111) in the same group are arranged at intervals along the circumference of the pressure relief pipe (11).

7. The double-walled water-gas separation cyclone drain pipe according to claim 6, characterized in that: The end of each of the pressure relief holes (111) connected to the inner cavity of the pressure relief pipe (11) is the inner end, and the end connected to the diversion channel (12) is the outer end. The pressure relief holes (111) are arranged obliquely from the inner end to the outer end toward the lower end of the pipe body (1).

8. The double-walled water-gas separation cyclone drain pipe according to claim 7, characterized in that: The inclination angle of each of the pressure relief holes (111) is between 45 degrees and 75 degrees.

9. The double-walled water-gas separation cyclone drain pipe according to claim 8, characterized in that: The ratio of the inner diameters of the pressure relief pipe (11) and the pipe body (1) is less than or equal to 1:

3.

10. The double-walled water-gas separation cyclone drain pipe according to claim 1, 2, 4 or 5, characterized in that: Both ends of the pressure relief pipe (11) protrude from the end ports of the pipe body (1).

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