A device for preventing overflow of drainage pipe of cleaning machine

Abstract

The present invention relates to an overflow prevention device for a drain pipe of a cleaning machine, comprising a drain pipe and a drain hole, wherein the end of the drain pipe is inserted into the drain hole, and further comprising an overflow prevention plugging component and an energy dissipator. The overflow prevention plugging component is fixedly connected to the outer peripheral wall of the drain pipe in the drain hole, and the energy dissipator is installed at the end of the drain pipe. The energy dissipator is located below the drain hole. The overflow prevention plugging component comprises an air bag and a defoaming net. The air bag wraps the defoaming net and is squeezed on the inner wall of the drain hole, which can be ventilated and has a certain defoaming ability. The energy dissipator is provided with a guide cone, which guides the vertical kinetic energy of wastewater into horizontal kinetic energy, reduces the vertical impact of wastewater on the liquid surface to generate foam, and fundamentally prevents foam overflow.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to an overflow prevention device for a drainage pipe of a cleaning machine. Background Art

[0002] During the cleaning process of the heat exchanger, a large amount of wastewater is generated, which needs to be discharged into a fixed recovery area for treatment. Because the cleaning wastewater contains solvents such as cleaning agents, it is very easy to produce foam, and the foam is easy to overflow from the drain hole during the discharge of the wastewater.

[0003] The commonly used method is to seal the drain pipe and the drain hole and fix them as a whole, but this also seals the vent for wastewater discharge, making it difficult to discharge wastewater. Summary of the invention

[0004] In order to solve the problems of difficulty in wastewater discharge and easy overflow of foam, the present invention provides an anti-overflow device for a drain pipe of a cleaning machine, the purpose of which is to reduce the impact force of wastewater, reduce foam generation, and prevent foam from overflowing from the drain hole.

[0005] In order to achieve the above object, the technical solution of the present invention is:

[0006] A device for preventing overflow of a drain pipe of a cleaning machine comprises a drain pipe and a drain hole, wherein the end of the drain pipe is inserted into the drain hole, and further comprises an anti-overflow plugging member and an energy dissipator, wherein the anti-overflow plugging member is fixedly connected to the outer peripheral wall of the drain pipe in the drain hole, and the energy dissipator is installed at the end of the drain pipe and is located below the drain hole;

[0007] The anti-overflow plugging member includes an air bag and a defoaming net, wherein the defoaming net is an annular mesh body, which is sleeved on the outer peripheral wall of the drain pipe, and a concentric annular air bag is sleeved on the outer side of the defoaming net, and an inflation tube is provided on the upper part of the air bag, and a valve core is provided in the inflation tube;

[0008] The energy dissipator comprises a connecting ring, a connecting rod and a guide cone. The connecting ring is tubular, the inner wall of the connecting ring is connected to the end of the drainage pipe, and the outer wall is connected to the guide cone through the connecting rod. The guide cone is in the shape of a trumpet with an opening downward.

[0009] Furthermore, the mesh diameter of the defoaming net is 0.2-1 mm.

[0010] Furthermore, the thickness of the defoaming net is half of the difference between the radius of the drainage hole and the drainage pipe.

[0011] Furthermore, the outer wall of the airbag is pressed against the inner wall of the drainage hole.

[0012] Furthermore, an external thread is arranged on the outer wall of the drain pipe near the end, an internal thread is arranged on the inner wall of the connecting ring, and the connecting ring and the drain pipe are connected via the internal thread and the external thread.

[0013] Furthermore, the number of the connecting rods is 3-6, the cross section of the connecting rod is triangular, and one rib of the connecting rod faces the axial direction of the drainage pipe.

[0014] Furthermore, the upper end of the conical surface of the guide cone is tangent to the axis of the drainage pipe, and the lower end is tangent to the horizontal plane.

[0015] Through the above technical solution, the beneficial effects of the present invention are:

[0016] 1. The energy dissipator of the present invention is provided with a guide cone, the upper end of the cone surface of the guide cone is tangent to the axis of the drain pipe, and the lower end is tangent to the horizontal plane. The wastewater in the drain pipe can be guided to diffuse around, so that the downward kinetic energy of the wastewater is guided into horizontal kinetic energy, and the vertical impact of a large amount of concentrated wastewater is converted into a small amount of dispersed impact of wastewater, thereby reducing the wastewater vertically impacting the wastewater liquid surface in the drain pipe to generate foam, thereby reducing the generation of foam.

[0017] 2. The anti-overflow plugging component of the present invention includes an air bag and a defoaming net. The air bag has a defoaming net inside, which is fixed to the outer wall of the drain pipe. Gas is filled into the air bag until the inflated air bag squeezes the defoaming net and the drain pipe into the drain hole, leaving only part of the defoaming net connected to the outside through the mesh. The foam is easily broken when passing through a hole with a diameter of 0.2 to 1 mm. The mesh of the defoaming net has defoaming ability when the foam passes through. At the same time, the mesh is connected to the outside and can be ventilated, which does not affect the ventilation of wastewater discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a cross-sectional view of the present invention.

[0020] The numbers in the accompanying drawings are: 1 is a drain pipe, 2 is a drain hole, 3 is an anti-overflow plugging member, 4 is an energy dissipator, 31 is an air bag, 32 is a defoaming net, 33 is an inflation tube, 41 is a connecting ring, 42 is a connecting rod, and 43 is a guide cone. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0022] like Figure 1-2 As shown, a device for preventing drain pipe overflow of a cleaning machine includes a drain pipe 1 and a drain hole 2, wherein the end of the drain pipe 1 is inserted into the drain hole 2, and further includes an anti-overflow plugging component 3 and an energy dissipator 4. The anti-overflow plugging component 3 is fixedly connected to the outer peripheral wall of the drain pipe 1 in the drain hole 2, and the energy dissipator 4 is installed at the end of the drain pipe 1, and the energy dissipator 4 is located below the drain hole 2.

[0023] The anti-overflow plugging component 3 includes an air bag 31 and a defoaming net 32. The defoaming net 32 ​​is an annular mesh body. The defoaming net 32 ​​is sleeved on the outer peripheral wall of the drain pipe 1. A concentric annular air bag 31 is sleeved on the outside of the defoaming net 32. An inflation tube 33 is provided on the upper part of the air bag 31. A valve core is provided in the inflation tube 33. Gas is filled into the air bag until the inflated air bag squeezes the defoaming net and the drain pipe into the drain hole, leaving only part of the defoaming net to communicate with the outside through the mesh. The foam is easily broken when passing through a hole with a diameter of 0.2 to 1 mm. The mesh of the defoaming net 32 ​​has a defoaming ability when the foam passes through. At the same time, the mesh is connected to the outside and can be ventilated, which does not affect the ventilation of wastewater discharge.

[0024] The energy dissipator 4 includes a connecting ring 41, a connecting rod 42 and a guide cone 43. The connecting ring 41 is tubular, and the inner wall of the connecting ring 41 is connected to the end of the drain pipe 1, and the outer wall is connected to the guide cone 43 through the connecting rod 42. The guide cone 43 is a trumpet shape with an opening downward. The guide cone 43 can guide the wastewater flowing vertically downward in the drain pipe 1 to diffuse horizontally around, so that the kinetic energy of the wastewater flowing vertically downward is converted into kinetic energy in the horizontal direction, and the vertical impact of a large amount of concentrated wastewater is converted into a small amount of wastewater horizontal dispersion, thereby reducing the wastewater from vertically impacting the wastewater liquid surface in the drain pipe 1 to generate foam, thereby reducing the generation of foam.

[0025] The mesh diameter of the defoaming net 32 ​​is 0.2-1 mm, and the defoaming net is an annular foam iron or foam nickel.

[0026] The thickness of the defoaming net 32 ​​is half of the radius difference between the drainage hole 2 and the drainage pipe 1 .

[0027] The outer wall of the air bag 31 is pressed against the inner wall of the drainage hole 2 .

[0028] The drain pipe 1 is provided with an external thread on its outer wall near the end, and the connecting ring 41 is provided with an internal thread on its inner wall. The connecting ring 41 is connected to the drain pipe 1 through the internal thread and the external thread. When there are many impurities in the wastewater, the energy dissipator 4 can be disassembled by rotating the thread, and the energy dissipator 4 can be replaced or cleaned.

[0029] The number of the connecting rods 42 is 3-6, and the cross-section of the connecting rod 42 is triangular. One rib of the connecting rod 42 faces the axis of the drain pipe 1. The rib facing the axis of the drain pipe 1 reduces the impact of the connecting rod 42 on the wastewater flow on the one hand, and prevents the connecting rod 42 from intercepting too much impurities in the wastewater on the other hand.

[0030] The upper end of the conical surface of the guide cone 43 is tangent to the axis of the drain pipe 1, and the lower end is tangent to the horizontal plane. The top of the guide cone 43 is a point and the bottom is a plane, which can completely guide the wastewater flow to a horizontal direction and eliminate the vertical kinetic energy of the water flow above the energy dissipator 4.

[0031] The valve core adopted by the present invention is a French-style common bicycle valve core.

[0032] When in use, the present invention is inserted into the drainage hole 2, and an air pump is used to inflate the air bag 31 through the valve core, so that the air bag 31 and the inner wall of the drainage hole 2 are squeezed firmly.

[0033] The preferred embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various modifications may be made to the technical solutions of the present invention without departing from the spirit of the present invention, that is, within the scope of disclosure.

Claims

1. A device for preventing overflow of a drain pipe of a cleaning machine, comprising a drain pipe (1) and a drain hole (2), wherein the end of the drain pipe (1) is inserted into the drain hole (2), and characterized in that: It also includes an anti-overflow plugging component (3) and an energy dissipator (4), wherein the anti-overflow plugging component (3) is fixedly connected to the outer peripheral wall of the drainage pipe (1) in the drainage hole (2), and the energy dissipator (4) is installed at the end of the drainage pipe (1), and the energy dissipator (4) is located below the drainage hole (2); The anti-overflow plugging member (3) comprises an air bag (31) and a defoaming net (32), wherein the defoaming net (32) is an annular mesh body, and the defoaming net (32) is sleeved on the outer peripheral wall of the drainage pipe (1), and a concentric annular air bag (31) is sleeved on the outer side of the defoaming net (32), and an inflation tube (33) is provided on the upper part of the air bag (31), and a valve core is provided in the inflation tube (33); The energy dissipator (4) comprises a connecting ring (41), a connecting rod (42) and a guide cone (43); the connecting ring (41) is tubular; the inner wall of the connecting ring (41) is connected to the end of the drainage pipe (1); the outer wall of the connecting ring (41) is connected to the guide cone (43) via the connecting rod (42); the guide cone (43) is horn-shaped with an opening facing downward.

2. The device for preventing overflow of a drain pipe of a cleaning machine according to claim 1, characterized in that: The mesh diameter of the defoaming net (32) is 0.2-1 mm.

3. The device for preventing overflow of a drain pipe of a cleaning machine according to claim 2, characterized in that: The thickness of the defoaming net (32) is half the radius difference between the drainage hole (2) and the drainage pipe (1).

4. The device for preventing overflow of a drain pipe of a cleaning machine according to claim 1, characterized in that: The outer wall of the air bag (31) is pressed against the inner wall of the drainage hole (2).

5. The device for preventing overflow of a drain pipe of a cleaning machine according to claim 1, characterized in that: The drain pipe (1) is provided with an external thread on its outer wall near the end, and the connecting ring (41) is provided with an internal thread on its inner wall. The connecting ring (41) and the drain pipe (1) are connected via the internal thread and the external thread.

6. The device for preventing overflow of a drain pipe of a cleaning machine according to claim 1, characterized in that: The number of the connecting rods (42) is 3-6, the cross section of the connecting rod (42) is triangular, and one rib of the connecting rod (42) faces the axial direction of the drainage pipe (1).

7. The device for preventing overflow of a drain pipe of a cleaning machine according to claim 1, characterized in that: The upper end of the conical surface of the guide cone (43) is tangent to the axis of the drainage pipe (1), and the lower end is tangent to the horizontal plane.

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