An exhaust device for a vertical pipeline

Abstract

The present invention discloses an exhaust device for a vertical pipeline, comprising a base, which is a three-way structure, and is provided with a water inlet end, a water outlet end and a return end, wherein the water outlet end and the return end are in the same straight line; the return end of the base is covered with a buffer water tank, and a reflector is provided just above the return end, and the reflector is located in the buffer water tank; the water inlet end of the base is connected to a water inlet pipe, and a return pipe is provided below the buffer water tank, and the return pipe connects the buffer water tank and the water inlet pipe; a check valve plate is provided between the water inlet end of the base and the water inlet pipe. On the basis of the three-way structure, the present invention adds a splash-proof reflector and a buffer water tank that can collect splash water, and at the same time, a return pipe is provided between the buffer water tank and the water inlet pipe to solve the problem of recollection of splash water flow; the buffer water tank is open above, and there is a gap between the reflector and the buffer water tank, which is convenient for the airflow in the vertical pipeline to be discharged into the atmosphere.

Description

Technical Field

[0001] The invention belongs to the technical field of exhaust equipment, and in particular relates to an exhaust device for a vertical pipeline. Background Art

[0002] Large equipment such as pools and water tanks usually use pipes to drain water. When the water level difference is large, the water in the pipe falls too fast, which can easily cause siphoning, and air will be sucked into the pipe (such as Figure 1 As shown in the figure, part of the air that enters the vertical pipe continues to flow into the horizontal pipe with the water flow. However, when the vertical pipe is long enough, more air accumulates in the vertical pipe to form bubbles. The bubbles will hinder the water flow and even cause the water level in the pool to rise. When these air bubbles accumulate to a certain extent, the buoyancy of the bubbles will be greater than the water column on the bubbles, so that the bubbles gradually rise. The water column on the bubbles gradually becomes shorter, and the resistance to the bubbles gradually becomes smaller. Therefore, the rising speed of the bubbles will become faster and faster, and finally a certain amount of water will be rushed out along the pipe, forming a splashing phenomenon. The intensity of this splashing varies depending on the length of the vertical pipe (that is, the difference between the water level of the pool and the water level of the horizontal pipe). The highest can reach more than 5 meters. The splashed water often falls outside the pool and the pipe, which is not allowed in most applications, especially when transporting harmful sewage.

[0003] For the air entering the horizontal pipe, an exhaust valve is generally used to exhaust it. However, there is no corresponding exhaust device for the vertical pipe. At present, one measure to reduce the splashing phenomenon is to change the first elbow to a tee (such as Figure 2 As shown in the figure, when the water flow changes from horizontal to vertical flow, part of the air is discharged from the upper outlet of the tee, which can reduce the formation of bubbles in the vertical pipe and thus reduce the occurrence of splashing. However, this improvement can only reduce the occurrence of splashing but cannot completely eliminate it, and it does not solve the problem of recollecting the splashing water flow. Summary of the invention

[0004] The purpose of the present invention is to provide an exhaust device for a vertical pipeline which can solve the problems of exhaust and splash water recollection at the same time.

[0005] To this end, the technical solution of the present invention is: an exhaust device for a vertical pipe, characterized in that: it includes a base, the base is a three-way structure, and is provided with an inlet end, a water outlet end and a return end, and the water outlet end and the return end are in the same straight line; the return end of the base is covered with a buffer water tank, and a reflective cover is provided directly above the return end, and the reflective cover is located in the buffer water tank; the water inlet end of the base is connected to a water inlet pipe, a return pipe is provided under the buffer water tank, and the return pipe connects the buffer water tank and the water inlet pipe; a check valve plate is provided between the water inlet end of the base and the water inlet pipe.

[0006] Preferably, the check valve plate is rotatably mounted at the water inlet port of the base and can be flipped toward one side of the base to connect the water inlet pipe and the base in one direction.

[0007] Preferably, the buffer water tank is open at the top, a fixing bracket is provided at the opening, and the reflector is mounted on the fixing bracket.

[0008] Preferably, the reflector is a spherical or arc-shaped structure, and the notch of the reflector faces the return end of the base.

[0009] When in use, the exhaust device is installed between the drain outlet of large equipment such as a pool or a water tank and the vertical pipe for drainage. The water inlet end of the base is connected to the drain outlet of large equipment such as a pool or a water tank through the water inlet pipe, and the water outlet end of the base is connected to the vertical pipe; the water from the sink or pool flows into the vertical pipe through the water inlet pipe, the check valve plate, and the water outlet end. When bubbles in the vertical pipe carry the water upward, the mixed air-water flow is ejected from the return end, and a reflector is set just above the return end. The ejected water flow is reflected by the reflector and falls into the buffer water tank, and the air flow is discharged into the atmosphere through the gap above the reflector and the buffer water tank; the water in the buffer water tank flows into the water inlet pipe through the return pipe, and then flows into the vertical pipe through the check valve plate and the water outlet end of the base. When the vertical pipe is too long and the rising water volume is too large, the buffer water tank can also be raised to increase the volume.

[0010] The present invention adds a splash-proof reflective cover and a buffer water tank for collecting splashing water on the basis of a three-way connection, and at the same time a return pipe is arranged between the buffer water tank and the water inlet pipe to solve the problem of re-collecting the splashing water flow; the buffer water tank is open above, and there is a gap between the reflective cover and the buffer water tank, which is convenient for the airflow in the vertical pipe to be discharged into the atmosphere; a check valve plate is arranged at the water inlet end of the base, so that water can flow from the water inlet pipe into the water outlet end, and the splashing water flow cannot reversely enter the water inlet pipe when rising, thereby avoiding the formation of splashing in the pool. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings.

[0012] Figure 1 , Figure 2 It is a schematic diagram of the connection between a water pool and a vertical pipe in the prior art;

[0013] Figure 3 It is a schematic diagram of the structure of the exhaust device of the present invention;

[0014] Figure 4 It is a schematic diagram of the installation of the exhaust device of the present invention;

[0015] Figure 5 Schematic diagram of the state where the check valve plate is open;

[0016] Figure 6Schematic diagram of the structure for raising the buffer tank.

[0017] Marked in the figure are: base 1, water inlet end 11, water outlet end 12, return end 13, reflector 2, buffer water tank 3, fixed bracket 31, extension layer 32, water inlet pipe 4, return pipe 5, check valve plate 6, pool 7, drain outlet 71, vertical pipe 8, bubble 9, extension pipe 10, elbow 20, tee 30. DETAILED DESCRIPTION

[0018] See the attached drawings. The exhaust device described in this embodiment includes a base 1, which is a three-way structure, and is provided with a water inlet end 11, a water outlet end 12 and a return end 13, and the water outlet end 12 and the return end 13 are in the same straight line; the return end 13 of the base 1 is covered with a buffer water tank 3, the upper part of the buffer water tank 3 is open, and a fixed bracket 31 is provided at the opening, and a reflector 2 is installed on the fixed bracket 31, and the reflector 2 is a spherical surface or an arc surface structure, and the recess of the reflector 2 faces the return end 13 of the base, and covers the entire port of the return end; the water inlet end 11 of the base is connected to the water inlet pipe 4, and a return pipe 5 is provided below the buffer water tank 3, and the return pipe 5 connects the buffer water tank 3 and the water inlet pipe 4; a check valve plate 6 is provided between the water inlet end 11 of the base and the water inlet pipe 4.

[0019] like Figure 5 As shown, the check valve plate 6 is rotatably installed at the port of the water inlet end of the base and can be flipped toward the base to connect the water inlet pipe 4 and the base 1, and the water flow at the base cannot flow back to the water inlet pipe 4.

[0020] When in use, the exhaust device is installed between the drain port 71 of the pool 7 and the vertical drainage pipe 8, the water inlet end 11 of the base is connected to the drain port 71 of the pool through the water inlet pipe 4, and the water outlet end 12 of the base is connected to the vertical pipe 8; the water in the pool 7 flows into the vertical pipe 8 through the water inlet pipe 4, the check valve plate 6, and the water outlet end 12. When there are bubbles 9 in the vertical pipe 8 that carry the water upward, the gas-water mixed flow is ejected from the reflux end 13, and a reflector 2 is arranged just above the reflux end 13. The ejected water flow is reflected by the reflector 2 and falls into the buffer water tank 3, and the air flow is discharged into the atmosphere through the gap above the reflector 2 and the buffer water tank 3; and the water in the buffer water tank 3 flows into the water inlet pipe 4 through the reflux pipe 5, and then flows into the vertical pipe 8 through the check valve plate 6 and the water outlet end 12 of the base.

[0021] like Figure 6 As shown, when the vertical pipeline is too long and the rising water volume is too large, an extension layer 32 can be installed on the buffer tank 3 to increase the volume of the buffer tank 3. At the same time, an extension pipe 10 is installed on the return end 13 of the base so that the port of the splashing water flow is close to the reflector 2.

Claims

1. An exhaust device for a vertical pipeline, characterized in that: The utility model comprises a base, which is a three-way structure and is provided with a water inlet end, a water outlet end and a return end, wherein the water outlet end and the return end are in the same straight line; a buffer water tank is provided on the return end of the base, a reflective cover is provided just above the return end, and the reflective cover is located in the buffer water tank; the buffer water tank is open above, a fixed bracket is provided at the opening, the reflective cover is installed on the fixed bracket, and the reflective cover covers the entire port of the return end; the water inlet end of the base is connected to a water inlet pipe, a return pipe is provided below the buffer water tank, and the return pipe connects the buffer water tank and the water inlet pipe; a check valve plate is provided between the water inlet end of the base and the water inlet pipe.

2. An exhaust device for a vertical pipeline according to claim 1, characterized in that: The check valve plate is rotatably mounted at the water inlet end of the base and can be flipped toward one side of the base to connect the water inlet pipe and the base in one direction.

3. An exhaust device for a vertical pipeline according to claim 1, characterized in that: The reflector is a spherical or arc-shaped structure, and the notch of the reflector faces the return end of the base.

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