CN219809497U - Aeration pipeline relief valve amortization structure and biochemical pond that contains this structure - Google Patents

Abstract

The utility model relates to an aeration pipeline decompression valve silencing structure and a biochemical tank comprising the structure, wherein the aeration pipeline decompression valve silencing structure comprises an aeration device, the aeration device is connected to one end of an aeration main pipeline, and the other end of the aeration main pipeline is externally connected with an air supply device; the aeration main pipeline is provided with a pressure relief valve at one end close to the aeration device, the pressure relief valve is positioned above the liquid level of the water body in the biochemical pond, a valve opening of the pressure relief valve is connected with a pressure relief pipe, and the free end of the pressure relief pipe is positioned below the liquid level of the water body in the biochemical pond. Through damping and silencing of water, the utility model effectively reduces airflow sound discharged in the pressure release process, avoids noise pollution, and has the advantages of simple structure and low cost.

Description

Aeration pipeline relief valve amortization structure and biochemical pond that contains this structure

Technical Field

The utility model belongs to the technical field of sewage treatment, and particularly relates to a silencing structure of a pressure relief valve of an aeration pipeline and a biochemical tank with the same.

Background

The CAST process is a widely applied sewage treatment technology, and the process integrates aeration and sedimentation in a pool, utilizes activated sludge to treat sewage, and can effectively adsorb and decompose organic matters or toxins. Under the action of the aeration device, the sewage being treated in the tank and the activated sludge are fully mixed and well diluted, so that organic matters and poison in the sewage are degraded, oxidized or adsorbed by aerobic microorganisms in the sludge.

The CAST technology comprises 5 stages of water filling, reaction, precipitation, water draining and idle, wherein the existing CAST biochemical tank is characterized in that air is diffused into water in a bubble form through an aeration pipe in the tank and an external blower, and aeration is realized through contact of the air bubbles and the water; after the completion of the reaction in the CAST biochemical tank, the blower is often turned off to perform the next precipitation, and at this time, the pressure in each aeration pipe is inevitably excessive. In the prior art, as in CN212833038U and CN210103544U, the problem of over-high pressure in the pool is solved by a pressure relief mechanism. The problem of the internal atmospheric pressure of control aeration pipe has been solved through the pressure release structure, but in the in-process of pressure release, compressed air overflows to the ambient air, exists great, long-time air current sound, to regional staff even nearby resident, is a noise pollution, needs to improve the solution still further.

In addition, in the process of water treatment in the CAST biochemical pool, some floating impurities and greasy dirt inevitably float on the water surface along with the accumulation of time, but the currently used decanter is used as equipment for decanting clear water, the skimming pontoon only blocks the floating impurities and can not effectively remove the impurities such as the scum floating on the water surface, the water outlet effect of the decanter is affected due to excessive accumulation of the impurities, the labor intensity of manual cleaning is high, and the optimization and improvement are also needed.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide the silencing structure of the pressure relief valve of the aeration pipeline and the biochemical tank with the structure, so that the problems that large and long-time airflow sound exists during pressure relief of the aeration pipeline and noise pollution is easy to form are avoided.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides an aeration pipeline relief valve amortization structure, includes aeration equipment, aeration equipment is connected in the one end of aeration trunk line, the external air feeder of the other end of aeration trunk line; the aeration main pipeline is provided with a pressure relief valve at one end close to the aeration device, the pressure relief valve is positioned above the liquid level of water in the biochemical pond, a valve opening of the pressure relief valve is connected with a pressure relief pipe, the pressure relief pipe is a rigid bent pipe, and the free end of the pressure relief pipe is positioned below the water surface.

The technical scheme is further perfected, and the pressure relief pipe is provided with a reverse suction prevention check valve.

Further, the water tank is further included, and the free end of the pressure relief pipe is arranged below the water surface in the water tank.

The utility model also relates to a biochemical tank, which comprises a reaction area and a water outlet area, and also comprises the pressure relief valve silencing structure of the aeration pipeline, wherein the aeration device is arranged in the reaction area, and the free end of the pressure relief pipe is arranged below the liquid level of the water body in the biochemical tank.

Further, a decanter is arranged in the water outlet area and comprises a water decanting weir and a skimming pontoon arranged in front of the water decanting weir; the skimming pontoon is provided with a hollow slag suction pipe in the direction away from the water decanting weir, the length direction of the slag suction pipe is consistent with the length direction of the skimming pontoon, and the slag suction pipe and the skimming pontoon are fixedly connected through a connecting piece so that the slag suction pipe can lift along with the skimming pontoon; the outer circumferential surface of the slag suction pipe is provided with a scum inlet extending along the length direction of the slag suction pipe in a penetrating way, and the scum inlet faces away from the skimming pontoon, so that scum can enter the slag suction pipe along with water flowing through the scum inlet in the decanting process; the slag suction pipe is connected with a flexible hose for discharging the collected scum.

Further, the scum inlet is a rectangular opening with a long side corresponding to the length direction of the scum suction pipe, and the scum inlets are multiple in number and are arranged at intervals along the length direction of the scum suction pipe.

Further, a scum filter tank is arranged in the water outlet area, and the scum filter tank is provided with a collecting port and a discharge port;

the two decanters are respectively connected with slag suction pipes, the two decanters are arranged in the biochemical tank at intervals along the length direction of the two decanters, the flexible hoses are connected to the inner ends of the two slag suction pipes opposite to each other, the outer ends of the two slag suction pipes opposite to each other are closed, and the flexible hoses connected to the inner ends of the two slag suction pipes are connected together and then connected with the collecting port of the slag filtering tank;

a filter screen is arranged between the collecting port and the discharge port so as to filter and remove the scum collected by the scum suction pipe.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the silencing structure of the pressure relief valve of the aeration pipeline, the valve opening of the pressure relief valve on the aeration main pipeline is connected with the pressure relief pipe, and the free end of the pressure relief pipe is placed under the water surface, so that through damping and silencing of water, airflow sound discharged in the pressure relief process is effectively reduced, noise pollution is avoided, and the effect of noise reduction and silencing is better by utilizing air resistance through the rigid pipe with the S-shaped bent section.

2. In the biochemical tank, a hollow rigid slag suction pipe is arranged in front of a skimming pontoon, the slag suction pipe and the skimming pontoon are fixedly connected to realize the same lifting and lowering, a scum inlet is formed on the slag suction pipe, and the scum inlet faces the direction away from the skimming pontoon; thus, the scum and greasy dirt on the surface of the biochemical pool can enter the slag suction pipe along with the water flow and are discharged through the flexible hose, so that the functions of collecting and cleaning the scum on the water surface in the decanting process are realized, the cleaning of the pool surface is ensured, the water quality of the discharged water is improved, and the burden of manually fishing the scum is reduced.

Drawings

FIG. 1 is a plan view of a biochemical tank with an aeration pipeline relief valve silencing structure according to an embodiment;

fig. 2 is a schematic structural view of a silencing structure of a pressure release valve of an aeration pipeline according to an embodiment;

FIG. 3 is a top view of the water outlet area of FIG. 1;

FIG. 4 is a side view of FIG. 3;

FIG. 5 is a schematic diagram of the construction of a skimming pontoon and suction pipe junction in an embodiment;

wherein, reaction zone 1, water outlet zone 2, aeration main pipe 3, relief valve 4, relief pipe 5, decanter 6, decant water weir 61, skimming pontoon 62, slag suction pipe 7, scum inlet 71, closed end 72, flexible hose 8, first U-shaped clamp 81, second U-shaped clamp 82, connecting plate 83, scum filtering ponds 9.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined. In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The following describes the embodiments of the present utility model in further detail with reference to the drawings.

Referring to fig. 1 and 2, a silencing structure of a pressure release valve of an aeration pipe in an embodiment includes an aeration device (not shown in the figure), the aeration device is connected to one end of a main aeration pipe 3, and the other end of the main aeration pipe 3 is externally connected with an air supply device; the one end that aeration trunk line 3 is close to aeration equipment is last to be equipped with relief valve 4, relief valve 4 is located the liquid level of the internal water body of biochemical pond, the valve mouth of relief valve 4 is connected with relief pipe 5, relief pipe 5 is rigid return bend, and the free end of relief pipe 5 is located under the surface of water.

According to the silencing structure of the pressure relief valve of the aeration pipeline, the valve opening of the pressure relief valve 4 on the aeration main pipeline 3 is connected with the pressure relief pipe 5, the pressure relief pipe 5 is a rigid bent pipe, and the free end of the pressure relief pipe 5 is placed below the water surface, so that large and long-time airflow sound generated during pressure relief of the pressure relief valve 4 is damped and silenced through water, noise discharged in the pressure relief process is almost zero, and the noise reduction and silencing effect is better due to the adoption of the rigid bent pipe, and the silencing structure has the advantages of being simple in structure and low in cost.

In implementation, the pressure relief pipe 5 is a 304 stainless steel pipe.

Wherein, the pressure release pipe 3 is provided with a back suction prevention check valve (not shown in the figure).

In this way, water is prevented from being sucked back into the main aeration pipe 3.

In practice, the device also comprises a water tank (not shown in the figure), and the free end of the pressure release pipe 3 is arranged below the water surface in the water tank.

As an embodiment, even if the silencing structure of the utility model is in a water-free environment, the addition of the water tank can also realize damping silencing of water.

With continued reference to fig. 3 and 4, the present utility model further provides a biochemical tank, which includes a reaction zone 1 and a water outlet zone 2, and further includes an aeration pipeline decompression valve silencing structure as described above, wherein the aeration device is disposed in the reaction zone, and the free end of the decompression pipe 5 is disposed below the liquid surface of the water body in the biochemical tank.

Thus, the silencing structure is applied to the biochemical tank, and the free end of the pressure relief pipe 5 is placed below the water level in the biochemical tank.

Wherein, a decanter 6 is arranged in the water outlet area 2, and the decanter 6 comprises a water decanting weir 61 and a skimming pontoon 62 arranged in front of the water decanting weir 61; the skimming pontoon 62 is provided with a hollow slag suction pipe 7 in the direction away from the water decanting weir 61, the length direction of the slag suction pipe 7 is consistent with the length direction of the skimming pontoon 62, and the slag suction pipe 7 and the skimming pontoon 62 are fixedly connected through a connecting piece so that the slag suction pipe 7 can lift together with the skimming pontoon 62; the outer circumferential surface of the slag suction pipe 7 is provided with a scum inlet 71 extending along the length direction of the slag suction pipe in a penetrating way, and the scum inlet 71 faces away from the skimming pontoon 62 so that scum can enter the slag suction pipe 7 along with water flowing through the scum inlet 71 in the process of decanting; the dross suction pipe 7 is connected to a flexible hose 8 for discharging the collected dross.

In the biochemical pond of the embodiment, a hollow rigid slag suction pipe 7 is arranged in front of a skimming pontoon 62 of a decanter, the slag suction pipe 7 is fixedly connected with the skimming pontoon 62 to realize the same lifting and lowering, a scum inlet 71 is arranged on the slag suction pipe 7, and the scum inlet 71 faces the direction away from the skimming pontoon 62; thus, the scum and greasy dirt on the surface of the biochemical pool can enter the slag suction pipe 7 along with water flow and are discharged through the flexible hose 8, so that the functions of collecting and cleaning the scum on the water surface in the decanting process are realized, the cleaning of the pool surface is ensured, the water quality of the discharged water is improved, and the burden of manually fishing the scum is reduced.

In practice, referring to fig. 5, the connector includes a first U-shaped clip 81, a second U-shaped clip 82, and a connecting plate 83; the first U-shaped clamp 81 is matched with the diameter of the skimming pontoon 62, and the second U-shaped clamp 82 is matched with the diameter of the slag suction pipe 7;

through holes are correspondingly formed in the connecting plate 83 corresponding to the positions of the free ends of the first U-shaped clamp 81 and the second U-shaped clamp 82, skimming buoys are arranged between the first U-shaped clamp 81 and the connecting plate 83, and the free ends of the first U-shaped clamp 81 penetrate through the corresponding through holes one by one and are fastened through nuts; the slag suction pipe 7 is arranged between the second U-shaped clamp 82 and the connecting plate 83, and the free ends of the second U-shaped clamp 82 penetrate through the corresponding through holes one by one and are fastened through nuts.

Wherein, the scum inlet 71 is a rectangular opening with a long side corresponding to the length direction of the scum suction pipe 7, and the number of the scum inlets 71 is a plurality of and is arranged at intervals along the length direction of the scum suction pipe 7.

In this way, the scum inlets 71 are provided in a plurality of rectangular openings which are arranged at intervals along the length direction of the scum suction pipe 7, so that the scum suction pipe 7 has better structural strength and can effectively collect scum.

Wherein, the water outlet area is also provided with a scum filtering tank 9, and the scum filtering tank 9 is provided with a collecting port and a discharge port;

the number of the decanters 6 is two and are respectively connected with slag suction pipes 7, the two decanters 6 are arranged in the biochemical pond at intervals along the length direction of the decanters, the flexible hoses 8 are connected to the inner ends of the two slag suction pipes 7, the outer ends of the two slag suction pipes 7 opposite to each other are closed ends 72, and the flexible hoses 8 connected to the inner ends of the two slag suction pipes 7 are connected with the collecting port of the scum filtering pond 9 after being gathered and connected;

a filter screen is arranged between the collecting port and the discharging port so as to filter and remove the scum collected by the scum suction pipe 7.

In this way, the scum filter tank 9 is convenient to clean regularly.

In the implementation, the opening width of the scum inlet in the circumferential direction of the scum suction pipe 7 accounts for 25% -35% of the circumferential direction of the scum suction pipe.

It can be understood that the utility model solves the problems that firstly, the main aeration pipe 3 in the CAST biochemical tank is depressurized to generate noise and secondly, the decanter 6 can not effectively remove impurities such as scum floating on the water surface; the arrangement of the biological selection zone, the pre-reaction zone, etc. in the CAST biochemical tank is not described too much and should be understood to belong to the prior art.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims (7)

1. The utility model provides an aeration pipeline relief valve amortization structure, includes aeration equipment, aeration equipment is connected in the one end of aeration trunk line, the external air feeder of the other end of aeration trunk line; the method is characterized in that: the aeration main pipeline is provided with a pressure relief valve at one end close to the aeration device, a valve opening of the pressure relief valve is connected with a pressure relief pipe, and the free end of the pressure relief pipe is placed in water.

2. An aeration pipeline decompression valve silencing structure according to claim 1, wherein: the pressure relief pipe is a rigid pipe and is provided with an S-shaped bent section, and the pressure relief pipe is provided with a check valve to prevent reverse water absorption.

3. An aeration pipeline decompression valve silencing structure according to claim 1, wherein: the water tank is arranged close to the pressure relief valve, and the free end of the pressure relief pipe is arranged below the liquid level of the water body in the water tank.

4. The biochemical pond comprises a reaction area and a water outlet area, and is characterized in that: the silencer structure of the pressure relief valve of the aeration pipeline according to any one of claims 1-2, wherein the aeration device is arranged in the reaction zone, the pressure relief valve is positioned above the liquid level of the water body in the biochemical tank, and the free end of the pressure relief pipe is arranged below the liquid level of the water body in the biochemical tank.

5. The biochemical cell according to claim 4, wherein: a decanter is arranged in the water outlet area and comprises a water decanting weir and a skimming pontoon arranged in front of the water decanting weir; the skimming pontoon is provided with a hollow slag suction pipe in the direction away from the water decanting weir, the length direction of the slag suction pipe is consistent with the length direction of the skimming pontoon, and the slag suction pipe and the skimming pontoon are fixedly connected through a connecting piece so that the slag suction pipe can lift along with the skimming pontoon; the outer circumferential surface of the slag suction pipe is provided with a scum inlet extending along the length direction of the slag suction pipe in a penetrating way, and the scum inlet faces away from the skimming pontoon, so that scum can enter the slag suction pipe along with water flowing through the scum inlet in the decanting process; the slag suction pipe is connected with a flexible hose for discharging the collected scum.

6. The biochemical pool according to claim 5, wherein: the scum inlets are rectangular openings with long sides corresponding to the length direction of the scum suction pipe, and the number of the scum inlets is multiple and is arranged at intervals along the length direction of the scum suction pipe.

7. The biochemical cell according to claim 4, wherein: a scum filter tank is arranged in the water outlet area, and is provided with a collecting port and a discharge port;

the two decanters are respectively connected with slag suction pipes, the two decanters are arranged in the biochemical tank at intervals along the length direction of the two decanters, the flexible hoses are connected to the inner ends of the two slag suction pipes opposite to each other, the outer ends of the two slag suction pipes opposite to each other are closed, and the flexible hoses connected to the inner ends of the two slag suction pipes are connected together and then connected with the collecting port of the slag filtering tank;

a filter screen is arranged between the collecting port and the discharge port so as to filter and remove the scum collected by the scum suction pipe.