Self-cleaning perforated aeration device

Abstract

The utility model discloses a self-cleaning perforated aeration device which comprises an air blower, a main air supply pipe, a connecting pipe, a flow regulating valve and a perforated aeration pipe, the perforated aeration pipe comprises a self-cleaning release pipe, a first elbow, a horizontal perforated pipe and a second elbow, the first elbow and the second elbow are respectively arranged at two ends of the horizontal perforated pipe, the opening direction of the first elbow faces downwards and is connected with the self-cleaning release pipe, and the opening direction of the second elbow faces upwards; a main aeration hole and an auxiliary aeration hole are formed in the horizontal perforated pipe. The main aeration holes and the auxiliary aeration holes in different numbers are formed in different positions of the horizontal perforated pipe, and the self-cleaning release pipe is arranged at the tail part of the horizontal perforated pipe, so that when the main aeration holes are blocked, the aeration rate can be ensured through the auxiliary aeration holes, and when the main aeration holes are seriously blocked, the aeration rate can be ensured. And the horizontal release pipe can be cleaned through the self-cleaning release pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field especially, it is a kind of self-cleaning perforated aerator for carrying out oxygenation aeration to sewage treatment biochemical pool. BACKGROUND

[0002] In the sewage treatment process, perforated aerator is a kind of common oxygenation aeration device, because its low cost, material is easy to get, often used in some small sewage treatment biochemical pool.The traditional perforated aerator is to set up several small holes on a horizontal pipeline, exhaust through small hole, oxygenation aeration for sewage biochemical pool, but because sewage treatment biochemical pool contains sludge and sand grain etc., easy to cause small hole blockage, and small hole blockage is not easy to clean, often need to empty the sewage in biochemical pool, by artificial to carry out cleaning at pool bottom, workload big also exist greater risk.

[0003] Therefore, it is urgent to provide a kind of perforated aerator, which can oxygenate and aerate the sewage treatment biochemical pool, and has low cost and self-cleaning function. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of perforated aerator with self-cleaning function to solve the problems in the prior art.

[0005] The utility model solves technical problem using the following technical scheme:

[0006] A kind of self-cleaning perforated aerator, including air blower, main gas pipe, connecting pipe, flow regulating valve and perforated aerator pipe;The main gas pipe is provided with pressure gauge, and its air inlet end is connected with the air blower, and the air outlet end is provided with bypass valve;The perforated aerator pipe is connected with main gas pipe by connecting pipe, and the flow regulating valve is arranged on connecting pipe;

[0007] The perforated aerator pipe includes self-cleaning release pipe, first elbow, horizontal perforated pipe and second elbow, the self-cleaning release pipe and horizontal perforated pipe are both straight pipes with both ends open, the first elbow, second elbow are respectively arranged at the both ends of horizontal perforated pipe, and the opening direction of first elbow is downward, and is connected with the self-cleaning release pipe, the opening direction of second elbow is upward, and is connected with main gas pipe by connecting pipe;

[0008] Two rows of main aeration holes are set up above the horizontal perforated pipe, two rows of main aeration holes are evenly arranged along the length direction of horizontal perforated pipe, and the included angle between the axis of main aeration hole and the horizontal section of horizontal perforated pipe is 45 °;Auxiliary aeration hole is set up in the bottom of horizontal perforated pipe.

[0009] Furthermore, the inner diameter of the horizontal perforated pipe is 40 mm to 100 mm, and the inner diameter can be adjusted according to the amount of gas.

[0010] Furthermore, the length of the self-cleaning release tube is 100 mm to 200 mm.

[0011] Furthermore, the auxiliary aeration holes have a diameter of 2 to 5 mm, and their number is 1 / 4 to 1 / 3 of the number of the main aeration holes, and are evenly arranged along the length direction of the horizontal perforated tube.

[0012] The utility model has the following beneficial effects: the self-cleaning perforated aeration device of the utility model is provided with different numbers of main aeration holes and auxiliary aeration holes at different positions of the horizontal perforated tube, and a self-cleaning release tube is provided at the tail end of the horizontal perforated tube. When the main aeration holes are blocked, the aeration amount can be ensured through the auxiliary aeration holes, and when the main aeration holes are seriously blocked, the horizontal release tube can be cleaned through the self-cleaning release tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram of the self-cleaning perforated aeration device of the utility model;

[0014] Figure 2 This is a schematic structural diagram of the perforated aeration tube in the self-cleaning perforated aeration device of the present invention;

[0015] Figure 3 It is a cross-sectional view of the horizontal aeration pipe in the utility model.

[0016] The markings in the figure are as follows: 1-blower; 2-main air supply pipe; 3-connecting pipe; 4-flow regulating valve; 5-perforated aeration pipe; 21-pressure gauge; 22-bypass valve; 51-self-cleaning release pipe; 52-first elbow; 53-horizontal perforated pipe; 54-second elbow; 55-main aeration hole; 56-auxiliary aeration hole. DETAILED DESCRIPTION

[0017] The technical solution of the present utility model will be further described below in conjunction with the embodiments and drawings.

[0018] Example 1

[0019] like Figure 1 As shown, a self-cleaning perforated aeration device includes a blower 1, a main air supply pipe 2, a connecting pipe 3, a flow regulating valve 4 and a perforated aeration pipe 5; the main air supply pipe 2 is provided with a pressure gauge 21, and its air inlet end is connected to the blower 1, and the air outlet end is provided with a bypass valve 22; the perforated aeration pipe 5 is connected to the main air supply pipe 2 through the connecting pipe 3, and the flow regulating valve 4 is provided on the connecting pipe 3.

[0020] In this embodiment, the blower 1 supplies gas to the main air supply pipe 2, and the gas in the main air supply pipe 2 enters the perforated aeration pipe 5 through the connecting pipe 3, and the flow regulating valve 4 provided on the connecting pipe 3 can control the gas flow entering the perforated aeration pipe 5.

[0021] On the other hand, the number of perforated aeration pipes 5 can be selected according to actual conditions. When there are multiple perforated aeration pipes 5, they are connected to the main air supply pipe 2 through different connecting pipes 3, and each connecting pipe 3 is provided with a flow regulating valve 4.

[0022] like Figure 2 As shown, the perforated aeration pipe 5 includes a self-cleaning release pipe 51, a first elbow 52, ​​a horizontal perforated pipe 53 and a second elbow 54. The self-cleaning release pipe 51 and the horizontal perforated pipe 53 are straight pipes with openings at both ends. The first elbow 52 and the second elbow 54 are respectively arranged at both ends of the horizontal perforated pipe 53, and the opening direction of the first elbow 52 faces downward and is connected to the self-cleaning release pipe 51. The opening direction of the second elbow 54 faces upward and is connected to the main air supply pipe 2 through the connecting pipe 3.

[0023] Specifically, the inner diameter of the horizontal perforated tube 53 is 40 mm to 100 mm, and the inner diameter can be adjusted according to the amount of gas; the length of the self-cleaning release tube 51 is 100 mm to 200 mm.

[0024] like Figure 3 As shown, two rows of main aeration holes 55 are opened on the upper side of the horizontal perforated tube 53 , and auxiliary aeration holes 56 are opened on the bottom side.

[0025] In this embodiment, two rows of primary aeration holes 55 are evenly spaced along the length of the horizontal perforated tube. The included angle between the axis of the primary aeration holes 55 and the horizontal cross-section of the horizontal perforated tube is 45°. This arrangement allows bubbles emitted from the primary aeration holes to diffuse in both directions, reducing mutual interference. The auxiliary aeration holes 56 have a diameter of 2 to 5 mm and are 1 / 4 to 1 / 3 the number of the primary aeration holes 55. They are evenly spaced along the length of the horizontal perforated tube.

[0026] When the self-cleaning perforated aerator of the present invention is aerating, the bypass valve on the main air supply pipe is initially closed, and gas supplied by the blower 1 sequentially passes through the main air supply pipe 2 and the connecting pipe 3 and enters the perforated aeration pipe 5. At this point, the bypass valve on the main air supply pipe can be adjusted to vent gas based on the water depth and the pressure gauge reading at the location of the perforated aeration pipe 5. This allows the pressure gauge reading to correspond to the water depth of the perforated aeration pipe 5, thereby allowing the majority of gas entering the perforated aeration pipe 5 to be discharged through the main aeration holes.

[0027] When the main aeration holes are blocked, the pressure inside the horizontal perforated pipe increases accordingly, and when it reaches a certain value, the gas inside the horizontal perforated pipe is discharged from the auxiliary aeration holes at the same time, thereby achieving the effect of stabilizing the aeration amount; on the other hand, when the main aeration holes are seriously blocked, the gas inside the horizontal perforated pipe enters the self-cleaning release pipe through the first elbow, and is discharged from the self-cleaning release pipe; the self-cleaning release pipe can provide an open pipeline on the one hand, thereby preventing sludge from depositing and blocking the horizontal perforated pipe, and can also play a self-cleaning role on the other hand;

[0028] When the horizontal perforated pipe is seriously blocked, the gas is continuously discharged from the self-cleaning release pipe downward, so that the gas inside the horizontal perforated pipe starts to flow to scour the inner wall of the horizontal perforated pipe; after scouring, the blocking phenomenon of the main aeration holes and the auxiliary aeration holes on the horizontal perforated pipe is alleviated, and gradually returns to the normal state.

[0029] The sequence of the above embodiments is only for the convenience of description, and does not represent the advantages and disadvantages of the embodiments.

[0030] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A self-cleaning perforated aeration device, characterized in that, It comprises a blower, a main gas pipe, a connecting pipe, a flow regulating valve and a perforated aeration pipe; a pressure gauge is arranged on the main gas pipe, and the gas inlet end of the main gas pipe is connected with the blower, and a bypass valve is arranged at the gas outlet end; the perforated aeration pipe is connected with the main gas pipe through the connecting pipe, and the flow regulating valve is arranged on the connecting pipe; The perforated aeration pipe comprises a self-cleaning release pipe, a first elbow, a horizontal perforated pipe and a second elbow, the self-cleaning release pipe and the horizontal perforated pipe are both straight pipes with both ends open, the first elbow and the second elbow are arranged at both ends of the horizontal perforated pipe respectively, the opening direction of the first elbow is downward, and the first elbow is connected with the self-cleaning release pipe, the opening direction of the second elbow is upward, and the second elbow is connected with the main gas pipe through the connecting pipe; Two rows of main aeration holes are arranged above the horizontal perforated pipe, the two rows of main aeration holes are arranged uniformly along the length direction of the horizontal perforated pipe, and the included angle between the axis of the main aeration hole and the horizontal section of the horizontal perforated pipe is 45°; an auxiliary aeration hole is arranged at the bottom of the horizontal perforated pipe.

2. The self-cleaning perforated aeration device of claim 1, wherein, The inner diameter of the horizontal perforated pipe is 40mm-100mm, and the inner diameter can be adjusted according to the gas quantity.

3. The self-cleaning perforated aeration device of claim 1, wherein, The length of the self-cleaning release pipe is 100mm-200mm.

4. The self-cleaning perforated aeration device of claim 1, wherein, The diameter of the auxiliary aeration hole is 2-5mm, the number of the auxiliary aeration hole is 1 / 4-1 / 3 of the number of the main aeration hole, and the auxiliary aeration hole is arranged uniformly along the length direction of the horizontal perforated pipe.

Images