CN2581438Y

CN2581438Y - Aerator

Info

Publication number: CN2581438Y
Application number: CN02222410U
Authority: CN
Inventors: 蒋康豫
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-04-28
Filing date: 2002-04-28
Publication date: 2003-10-22
Anticipated expiration: 2012-04-28

Abstract

The utility model discloses an aerator used in the process of sewage treatment, which comprises a shell body 2 with a hollow center rod 1, a core body 3, and a position limiting device 4 for limiting the axial moving distance of the core body 3. A cover plate 5 and a baffle plate 6 are arranged on the core body 3. When air is stopped, the cover plate 5 is covered on the upper end surface 7 of the shell body 2. The baffle plate 6 is arranged on the middle part of an inner cavity of the shell body 2, and a definite gap is arranged between the outer diameter edge of the baffle plate 6 and the inner surface of the shell body 2. The aerator used in the process of sewage treatment with the structure can reliably prevent an air outlet being blocked by sludge. The aerator used in the process of sewage treatment can be used for a long time, and the aerator used in the process of sewage treatment does not need to be maintained; meanwhile, the aerator used in the process of sewage treatment has the advantages of simple structure, and easy processing and assembly. The aerator used in the process of sewage treatment can be used for the treatment of municipal sewage and industrial wastewater.

Description

A kind of aerator

Affiliated technical field

The utility model relates to the aeration aerating device that uses in a kind of sewage treatment process.

Background technology

Aerator form commonly used at present is more, but generally all adopts air to enter from the lower end of centibar, by pore arrival plenum chamber, the mode of discharging the circumferential gap between adjustment dish and pallet at last at middle part.Adjustment dish top is provided with the rubber lid, when stopping the supple of gas or steam, relies on the elastic contribution of rubber that circumferential gap is sealed rapidly, to guarantee not by sludge blockage.The deficiency of this structure is that the concentrated load of rubber lid causes fatigue damage greatly and easily, the easily aging distortion of rubber, and the working life of rubber is generally not long, thereby cause the anti-clogging plug function of aerator to lose efficacy because of the ageing of rubber distortion, the work reliability and the working life of aerator have been reduced, increase maintenance cost, also had the shortcoming of complex structure, process and assemble difficulty simultaneously.

Summary of the invention

In order to overcome the deficiency of existing easily inefficacy of aerator anti-clogging plug function, complex structure, process and assemble difficulty, the utility model provides a kind of and can prevent from reliably to stop up, simple in structure, the easy aerator of process and assemble.

The technical scheme that its technical problem that solves the utility model adopts is: this aerator comprises housing, the core body of band hollow center bar, core body is provided with cover plate and baffle plate, cover plate covers on the upper surface of housing, and baffle plate places the inner chamber middle part of housing and its external diameter internal diameter less than housing.

The beneficial effects of the utility model are, can prevent the air outlet reliably by sludge blockage, use reliable, but life-time service and need not keeping in repair also has simple in structure, process and assemble simultaneously and is easy to characteristics.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a structure sectional view of the present utility model

Fig. 2 is the A-A sectional view of Fig. 1.

Fig. 3 is the B-B sectional view of the core body part of Fig. 1.

Fig. 4 is the sectional view of the core body of another kind of form.

Embodiment

Embodiment 1: as Fig. 1, Fig. 2, shown in Figure 3, aerator of the present utility model comprises housing 2, core body 3 and the stop means 4 of band hollow center bar 1.Core body 3 is provided with cover plate 5 and baffle plate 6, cover plate 5 stop the supple of gas or steam the time cover on the upper surface 7 of housing 2, play the sealing and the support limit effect.Baffle plate 6 places the inner chamber middle part of housing 2, between the internal surface of its external diameter edge and housing 2 certain clearance is arranged, and is used for passing through of air, when core body 3 also can play certain guide effect when its axis direction moves up and down.Stop means 4 also can replace with modes such as pins for head stretches into the clip of housing 2 inner chamber certain-lengths.Stop means 4 is arranged on the housing 2 between cover plate 5 and the baffle plate 6, leaves distance between the last plane 9 of its lower edge 8 and baffle plate 6, and this distance is generally 3～6mm, is used to limit the distance that moves axially of core body 3.Also have through hole or groove 10 on the baffle plate 6, be used for air and pass easily, this through hole or groove 10 also can be the damaged parts of segmental, as shown in Figure 4.Also can be provided with the guiding rib 11 that the internal surface with housing 2 is slidingly matched on the core body 3, when moving, plays axis direction guiding at core body 3, gap between the internal surface of baffle plate 6 external diameter edges and housing 2 can be strengthened at this moment, and can limited device 4 spacing being as the criterion with baffle plate 6.The bottom of baffle plate (6) also is provided with the deflection cone 12 with its dead in line, and there is certain distance at the guide face 13 and the inlet mouth edge 14 of deflection cone 12.Guide face 13 is the garden cambered surface, can be cone surface also, plays a part to reduce atmospheric drag, air is carried out water conservancy diversion and guiding.

Aerator of the present utility model is when work, air enters from the lower end of hollow center bar 1, behind the water conservancy diversion and guiding by deflection cone 12, pass through gap location between the internal surface of baffle plate 6 and housing 2 and through hole on the baffle plate 6 or the groove 10, cover plate 5 on the upper surface 7 that will cover housing 2 under the effect of pressure backs down, and core body 3 moves up and carries out aeration.Core body 3 falls by deadweight when stopping the supple of gas or steam, and cover plate 5 covers on the upper surface 7 of housing 2 again, avoids mud to enter, and prevents that the air outlet is by the effect of sludge blockage thereby can play.The aerator of this kind structure uses reliable, but life-time service and need not keeping in repair, and economical and practical and novel structure also has simple in structure, process and assemble simultaneously and is easy to advantage, can be widely used in the processing of municipal effluent and trade effluent.

Claims

1, a kind of aerator, the housing (2) that comprises band hollow center bar (1), it is characterized in that: it also comprises core body (3), core body (3) is provided with cover plate (5) and baffle plate (6), cover plate (5) covers on the upper surface (7) of housing (2), and baffle plate (6) places the inner chamber middle part of housing (2) and its external diameter internal diameter less than housing (2).

2, aerator as claimed in claim 1, it is characterized in that: it also comprises stop means (4), stop means (4) is arranged on the housing (2) between cover plate (5) and the baffle plate (6), leaves distance between the lower edge (8) of stop means (4) and the last plane (9) of baffle plate (6).

3, aerator as claimed in claim 1 is characterized in that: also have through hole or groove (10) on the described baffle plate (6).

4, aerator as claimed in claim 1 is characterized in that: also be provided with the guiding rib (11) that the internal surface with housing (2) is slidingly matched on the described core body (3).

5, aerator as claimed in claim 2 is characterized in that: the distance between the lower edge (8) of described stop means (4) and the last plane (9) of baffle plate (6) is 3～6mm.

6, as claim 1,2 or 3 described aerators, it is characterized in that: the bottom of described baffle plate (6) also is provided with the deflection cone (12) with its dead in line, and the guide face (13) of deflection cone (12) has distance with inlet mouth edge (14).

7, aerator as claimed in claim 5 is characterized in that: described guide face (13) is the garden cambered surface.