CN219209089U - Cowling of grit chamber and cyclone grit chamber - Google Patents

Abstract

The utility model relates to the technical field of sewage treatment, and provides a fairing of a grit chamber and a rotational flow grit chamber, wherein the fairing of the grit chamber comprises: the wall attaching plate is suitable for being arranged at the tail end of a water inlet gallery of the grit chamber and is provided with a water inlet; the water baffle comprises a first water baffle, a water outlet is arranged at the lower part of the first water baffle, the water outlet is lower than the water inlet, and the water outlet direction of the water outlet is consistent with the water inlet direction of the grit chamber; the wall attaching plate is connected with the water baffle, a diversion space is formed between the wall attaching plate and the water baffle, and the diversion space is communicated with the water inlet and the water outlet. The fairing of the grit chamber provided by the utility model can flexibly adjust the water inlet height and position, so that the modification of the cyclone grit chamber is simple and convenient, the modification difficulty of the cyclone grit chamber is reduced, and the water inlet flow state can be effectively changed and regulated, so that the effective hydraulic flow state can be more conveniently formed.

Description

Cowling of grit chamber and cyclone grit chamber

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a fairing of a grit chamber and a rotational flow grit chamber.

Background

In the sewage treatment process, a rotational flow grit chamber is commonly used for removing grit in sewage by sewage treatment plants in China so as to protect facilities such as pipelines, valves and the like from abrasion and blockage, and the rotational flow grit chamber is widely used in small and medium-sized sewage treatment plants.

In the process of using the cyclone sand sedimentation tank, because a water inlet and outlet mode of flat inlet and flat outlet is adopted, the problems of low sand sedimentation efficiency, short flow and the like exist, and improvement is needed. The improved mode of the rotational flow sand basin is various, such as a novel sand basin like a specific type sand basin or a hydraulic rotational flow sand basin, and the novel sand basin can remove finer silt particles and improve the operation effect of the subsequent biochemical treatment section. Unlike the original cyclone grit chamber which is fed with water tangentially from the top of the chamber, this new grit chamber generally requires that the water fed enter tangentially from the middle or lower part of the chamber body.

In order to meet the change of the water inlet mode, a common transformation mode is to dig a water inlet pipeline between a water inlet gallery and a tank body, and re-open a hole on the wall of the sand basin to install a water inlet pipe so as to meet the requirement of tangential water inlet at the middle part or the lower part. However, the reconstruction method has large civil engineering workload, and some engineering projects are difficult to reconstruct and lift due to the condition limitations of sites and the like.

Disclosure of Invention

The utility model provides a fairing of a grit chamber and a rotational flow grit chamber, which are used for solving the defects of larger civil work load and larger transformation difficulty of a rotational flow grit chamber transformation mode in the prior art. Through the cooperation of the wall attaching plate and the water baffle of the fairing, the rotational flow sand setting tank can flexibly change the water inlet height and position, so that the rotational flow sand setting tank is simple and convenient to reform, the reformation difficulty of the rotational flow sand setting tank is reduced, and the water inlet flow state can be effectively changed and regulated, so that the rotational flow sand setting tank is more convenient to form an effective hydraulic flow state.

The utility model provides a fairing of a grit chamber, comprising:

the wall attaching plate is suitable for being arranged at the tail end of a water inlet gallery of the grit chamber and is provided with a water inlet;

the water baffle comprises a first water baffle, a water outlet is arranged at the lower part of the first water baffle, the water outlet is lower than the water inlet, and the water outlet direction of the water outlet is consistent with the water inlet direction of the grit chamber;

the wall attaching plate is connected with the water baffle, a diversion space is formed between the wall attaching plate and the water baffle, and the diversion space is communicated with the water inlet and the water outlet.

According to the fairing of the grit chamber, the wall attaching plate is of an arc-shaped structure.

According to the fairing of the grit chamber, the water baffle further comprises a second water baffle, the second water baffle is arranged on the upper portion of the wall attaching plate, and one side of the second water baffle is connected with the first water baffle.

According to the fairing of the grit chamber provided by the utility model, the second water baffle is provided with the hanging lugs.

According to the fairing of the grit chamber, the water baffle further comprises a third water baffle and a fourth water baffle, wherein the third water baffle is arranged at the lower part of the attaching plate, and the third water baffle is arranged in parallel with the second water baffle; the fourth water baffle is arranged at the front part of the first water baffle, the second water baffle and the third water baffle.

The utility model also provides a cyclone sand setting tank which comprises a water inlet gallery, a water outlet gallery, a tank body and any one of the fairings, wherein the water inlet gallery and the water outlet gallery are connected to the tank body, and the fairings are arranged at the tail end of the water inlet gallery and are positioned in the tank body.

According to the cyclone sand setting tank provided by the utility model, the wall attaching plate is of an arc-shaped structure, and the curvature of the wall attaching plate is consistent with the curvature of the tank wall of the tank body.

According to the cyclone sand setting tank provided by the utility model, the water outlet of the water baffle faces the tangential direction of the tank body.

According to the cyclone sand setting tank provided by the utility model, the attaching plate is connected with the tank body through the expansion bolts.

According to the cyclone sand setting tank provided by the utility model, the area of the tail end of the water inlet gallery is the same as the area of the water outlet.

According to the fairing of the grit chamber and the cyclone grit chamber, provided by the utility model, the fairing of the grit chamber is arranged at the tail end of the water inlet gallery of the grit chamber, the length of the fairing can be adjusted according to the water inlet height and the position requirement of the reformed grit chamber, so that the water inlet height and the position can be flexibly changed, the reforming of the cyclone grit chamber is simple and convenient, the reforming difficulty of the cyclone grit chamber is reduced, and the water inlet position of the reformed grit chamber (namely the water outlet of the fairing) is lower than the water outlet position of the grit chamber, so that the possibility of short flow in the chamber is effectively reduced, a certain running water head is provided for cyclone flow, the flow state of water inlet in the grit chamber can be effectively improved, and more effective cyclone flow is facilitated.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a fairing of a grit chamber provided by an embodiment of the utility model;

fig. 2 is a schematic diagram of a front view structure of a fairing of a grit chamber provided by an embodiment of the utility model;

FIG. 3 is a schematic side view of a fairing of a grit chamber according to an embodiment of the utility model;

fig. 4 is a schematic top view of a fairing of a grit chamber according to an embodiment of the present utility model;

fig. 5 is a schematic top view of a cyclone sand basin according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of a front view structure of a cyclone grit chamber provided by an embodiment of the present utility model;

FIG. 7 is a schematic side view of a cyclone grit chamber provided by an embodiment of the present utility model;

FIG. 8 is a schematic diagram of a conventional modification method of a cyclone grit chamber to a hydrocyclone grit chamber in the prior art; the broken line in the figure shows the fairing for showing the condition that the fairing is not installed in the cyclone sand basin, and the fairing in the figure is used for comparing the relative position relation of the fairing and the water inlet pipeline.

Reference numerals:

1. a fairing of the grit chamber; 2. a cyclone sand setting tank;

100. attaching a wall plate; 110. a water baffle; 111. a first water baffle; 112. a second water baffle; 113. a third water baffle; 114. a fourth water baffle; 120. a water outlet; 130. hanging lugs; 140. an expansion bolt;

200. a water inlet gallery; 210. a water outlet gallery; 230. a cell body; 240. an included angle;

300. and a water inlet pipeline.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the embodiments of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

In the related art, when the sand basin needs to be modified by the original water inlet and outlet mode, as shown in fig. 8, if the fairing 1 of the cyclone sand basin provided by the utility model is not added (the dotted line schematic part in fig. 8 is not added in the cyclone sand basin), the modification needs to be performed by civil engineering. Another water inlet pipeline 300 is dug between the water inlet gallery 200 and the tank body 230, a water inlet pipe (not shown in the figure) is re-drilled on the wall of the sand basin, the water inlet and outlet mode is modified from horizontal inlet and horizontal outlet to low inlet and high outlet, the civil engineering workload of the modification mode is large, and some projects are difficult to modify and lift due to the condition limitations of fields and the like. In order to solve the above-described technical problems, the following embodiments of the present utility model are provided.

The present utility model provides an embodiment of the first aspect, and as shown in fig. 1 to 4, provides a fairing 1 of a grit chamber, including a wall plate 100 and a water baffle 110. The wall plate 100 is adapted to be disposed at the end of the water inlet gallery 200 of the grit chamber, and the wall plate 100 is provided with a water inlet (not shown); the water baffle 110 comprises a first water baffle 111, the first water baffle 111 is provided with a water outlet 120, the water outlet 120 is lower than a water inlet arranged on the wall attaching plate 100, and the water outlet direction of the water outlet 120 is consistent with the water inlet direction of the grit chamber; the wall plate 100 is connected with the water baffle 110, and a diversion space is formed between the wall plate 100 and the water baffle 110 and is communicated with the water inlet and the water outlet 120.

The wall plate 100 has a hollow structure, a water inlet (not shown) of the wall plate 100 is formed at a hollow position, and a hollow shape corresponds to a shape of a water inlet gallery end of the grit chamber.

When the grit chamber starts to feed water, water flow enters the fairing 1 of the grit chamber through the water inlet of the wall attaching plate 100, and the flow direction of the water flow is changed through the flow resistance of the water baffle 110, flows out of the fairing 1 of the grit chamber from the water outlet 120 of the first water baffle 111, and enters the chamber body of the grit chamber to realize rotational flow.

The water outlet 120 is lower than the water inlet provided by the wall-attaching plate 100, so that the problems of poor cyclone flow state, poor cyclone sand removal effect and the like caused by the short flow phenomenon in the tank body due to the adoption of a water inlet mode of horizontally feeding and horizontally discharging in the cyclone sand sedimentation tank can be solved. Because the fairing 1 of the grit chamber provided by the utility model has the advantages that the water outlet 120 is lower than the water inlet, and the water inlet height and the water inlet position can be flexibly adjusted under the choked flow action of the water baffle 110, so that the grit chamber is simple and convenient to reform, the reform difficulty is reduced, a certain operating water head can be provided for rotational flow, namely, the water level difference, the flow state of water flow in the grit chamber can be effectively improved, and the water inlet flow is more convenient to perform more effective rotational flow.

The fairing of the grit chamber provided by the utility model can meet the requirement of tangential water inlet at the middle part or the lower part of the grit chamber after transformation without civil engineering, has a simple structure, saves cost, can effectively reduce the civil construction work and civil cost after transformation, can realize the purpose of safe and convenient transformation, and has certain economical efficiency.

Further, the wall attaching plate 100 is an arc-shaped curved plate, and the radius corresponding to the specific arc-shaped curved plate can be correspondingly adjusted according to the diameter requirement of the tank body of the modified grit chamber because the wall attaching plate 100 has a certain curvature. Not only can support the radome fairing, make radome fairing zonulae occludens play good supporting role and fixed action on the cell body of grit chamber, the rectification effect is stable, can also carry out corresponding regulation to the radome fairing according to the cell body diameter and the radian requirement of different whirl grit chambers, and application scope is extensive, simple to operate moreover.

Of course, the wall attaching plate can also be a rectangular plate (not shown in the figure), and correspondingly, when the grit chamber starts to feed water, water flows into the fairing through the water inlet of the wall attaching plate, and flows out of the fairing from the water outlet of the first water baffle and into the tank body of the grit chamber through the choked flow of the water baffle. When the wall-attaching plate is a rectangular plate, the appearance shape of the fairing may be cuboid, other irregular pentahedron, hexahedron, etc. (not shown in the figure).

Further, when the grit chamber adopts the mode of tangential whirl intaking, can select the structure that the wainscot is the arc curved plate, when the grit chamber adopted other directions and the position of intaking, can select the structure that wainscot is the rectangular plate according to specific transformation demand.

The fairing of the grit chamber provided by the utility model not only can flexibly adjust the water inlet height and position, but also can adopt tangential rotational flow, so that the grit chamber can be conveniently modified to grit chambers of different types according to specific modification requirements, and the fairing has wide application range and wide applicability.

Specifically, the water baffle 110 further includes a second water baffle 112, the second water baffle 112 is disposed on the upper portion of the wall board 100, and one side of the second water baffle 112 is connected to the first water baffle 111. When water flows in from the water inlet, the second water baffle 112 can prevent water from flowing out of the upper part of the fairing 1 of the grit chamber, so that the water blocking effect and the rectifying effect of the fairing are improved.

Further, the second water baffle 112 is provided with the hanging lugs 130, so that the fairing 1 of the grit chamber can be accurately positioned and lifted during installation, the installation is convenient, the construction is safe, and the installation difficulty of the fairing is reduced.

Specifically, the water baffle 110 further includes a third water baffle 113 and a fourth water baffle 114. The third water baffle 113 is arranged at the lower part of the wainscot 100, and the third water baffle 113 and the second water baffle 112 are arranged in parallel; the fourth water baffle 114 is arranged in front of the first water baffle 111, the second water baffle 112 and the third water baffle 113, and the fourth water baffle 114 is connected with the wall board, the first water baffle 111, the second water baffle 112 and the third water baffle 113. The third water baffle 113 and the fourth water baffle 114 can prevent water from flowing out from the front part and the lower part of the fairing, so that the water blocking effect of the fairing is improved. The third water baffle 113, the fourth water baffle 114, the first water baffle 111 and the second water baffle 112 are combined to form the water baffle 110, a diversion space is formed between the water baffle and the wall attaching plate 100, other openings except the water inlet and the water outlet 120 are not formed, the sealing effect is good, the flow blocking effect is obvious, and the rectifying effect of the fairing is obvious.

Specifically, the first water baffle, the second water baffle, the third water baffle and the fourth water baffle can be formed by bending a whole plate, and the first water baffle, the second water baffle, the third water baffle and the fourth water baffle can be independent plates and are connected in a welding mode, an adhesive mode or the like to form the water baffle in a combined mode.

Specifically, the connection mode of the water baffle and the wall plate can be welding, bonding and the like

The present utility model provides an embodiment of the second aspect, and as shown in fig. 5 to 7, provides a cyclone grit chamber 2, comprising a water inlet gallery 200, a water outlet gallery 210, a chamber body 230 and a fairing 1 of the grit chamber in any one of the above embodiments. The water inlet gallery 200 and the water outlet gallery 210 are connected to the tank 230 to provide water inlet and water outlet for the tank, and the fairing is arranged at the tail end of the water inlet gallery 200 and positioned in the tank 230. The fairing 1 of the grit chamber has the above-mentioned beneficial effects, and the cyclone grit chamber 2 with the fairing also has the above-mentioned beneficial effects, and reference is made to the above for details, and details are not repeated here.

Wherein, the fairing 1 of the grit chamber is made of metal.

Specifically, the water outlet of the fairing 1 of the grit chamber is rectangular.

When flowing water enters the inside of the fairing through the water inlet gallery 200, after the inside of the fairing is subjected to the flow blocking effect of the water baffle 110, the flowing track of the flowing water changes, the flowing water flows into the tank body 230 of the cyclone grit chamber 2 from the water outlet 120 to swirl, and the flowing water gradually swirls along the peripheral spiral shape. After the fairing 1 of the grit chamber is installed, the tangential water inlet of the cyclone grit chamber from the top of the chamber is changed into the tangential water inlet of the middle part or the lower part, and then the water is discharged from the top of the chamber, so that the water inlet and outlet mode is changed from the original horizontal inlet and horizontal outlet mode into the low inlet and high outlet mode, the possibility of short flow in the chamber body 230 is effectively reduced, the water outlet 120 is lower than the water inlet, an operating water head is provided for cyclone, namely, the water level difference, the flow state of the water flow in the grit chamber in the chamber body 230 can be effectively improved, and more effective cyclone is more convenient for the water flow in the chamber body 230.

Wherein the cyclone grit chamber may be, but is not limited to, a Bell's cyclone grit chamber.

Specifically, the wall plate 100 has an arc-shaped structure, and the curvature of the wall plate 100 corresponds to the curvature of the wall of the tank 230. The fairing 1 of the grit chamber can be tightly fixed on the wall of the rotational flow grit chamber 2, and the fairing has good supporting effect and fixing effect, so that the water-blocking fairing effect of the fairing is stable.

Specifically, the water outlet 120 of the water baffle 110 faces the tangential direction of the tank 230, so that the water flow enters the tank 230 as tangential water, and the tangential water can make the water flow spiral along the tank wall to form a rotational flow, which is convenient for the water flow to perform more effective rotational flow.

Specifically, the wall plate 100 is connected to the tank body 230 through the expansion bolts 140, so that the combination degree of the wall plate 100 and the wall of the cyclone sand basin 2 is further improved, the fixing mode is simple, the working procedure is simple, and the combination is tighter.

After the fairing is placed at a proper installation position, the fairing is fixed with the inner wall of the cyclone sand setting tank through expansion bolts around the wall-attaching plate.

Specifically, the area of the water inlet gallery 200 is the same as that of the water outlet 120, so that water flow can smoothly enter the tank body 230 for swirling after the rectification effect of the fairing 1. Referring to fig. 5, the included angle 240 between the fourth water baffle 114 and the side wall of the water inlet gallery 200 is smaller than 90 degrees and larger than 0 degrees, and the width of the water outlet 240 is smaller than the width of the end opening of the water inlet gallery 200 due to a certain angle, but the area of the water inlet gallery 200 is the same as that of the water outlet 120, so that water flow can smoothly enter the tank body 230 after the rectification of the fairing 1, and more effective swirling flow is performed along the tangential direction attached to the tank wall of the tank body 230. The fairing provided by the utility model not only can change and regulate the inflow water flow state, but also is convenient for the grit chamber to reform different types of grit chambers according to the reforming requirement of the specific inflow water flow state, and has wide application range and wide applicability.

The utility model provides a fairing of a grit chamber and a rotational flow grit chamber, which are used for solving the defects of larger civil work load and larger transformation difficulty of a rotational flow grit chamber transformation mode in the prior art. Through providing a rectification component and whirl grit chamber, not only make the regulation that the whirl grit chamber can be nimble advance water height and position, make the transformation of whirl grit chamber simple and convenient, reduce the transformation degree of difficulty of whirl grit chamber, can also make the grit chamber after transformation adopt tangential whirl or other inflow direction and position, effectively change and rule the inflow flow state, make it more be convenient for form effectual hydraulic flow state. The water inlet and outlet mode can be effectively adapted to the hydrocyclone sand basin with higher sand removal efficiency, greatly facilitates the transformation work from the mechanical cyclone sand basin to the hydrocyclone sand basin, can effectively reduce civil engineering work during transformation, and therefore the transformation difficulty and transformation cost can be reduced, and the aim of safe and convenient transformation is achieved.

The length of the fairing of the grit chamber in the embodiment can be determined according to the water inlet requirement of the grit chamber after transformation, so that the water inlet height and position of the grit chamber can be flexibly changed. The fairing of the grit chamber provided by the utility model can be used for a rotational flow grit chamber, wherein the rotational flow grit chamber can be used for a Bell-type rotational flow grit chamber, but is not limited to the rotational flow grit chamber, and can also be applied to water inlet reconstruction of other water treatment structures.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. A fairing of a grit chamber, comprising:

the wall attaching plate is suitable for being arranged at the tail end of a water inlet gallery of the grit chamber and is provided with a water inlet;

the water baffle comprises a first water baffle, a water outlet is arranged at the lower part of the first water baffle, the water outlet is lower than the water inlet, and the water outlet direction of the water outlet is consistent with the water inlet direction of the grit chamber;

the wall attaching plate is connected with the water baffle, a diversion space is formed between the wall attaching plate and the water baffle, and the diversion space is communicated with the water inlet and the water outlet.

2. A screen according to claim 1, wherein the wall panels are of arcuate configuration.

3. The screen of claim 1, wherein the dam further comprises a second dam, the second dam being disposed on the upper portion of the wall plate, and wherein one side of the second dam is connected to the first dam.

4. A fairing of a grit chamber according to claim 3, wherein the second baffle is provided with lugs.

5. A fairing of a grit chamber according to claim 3, wherein the baffle further comprises a third baffle and a fourth baffle, the third baffle being disposed below the wall plate, the third baffle being disposed in parallel with the second baffle; the fourth water baffle is arranged at the front part of the first water baffle, the second water baffle and the third water baffle.

6. A cyclone grit chamber, comprising a water inlet gallery, a water outlet gallery, a chamber body and a fairing of the grit chamber of any one of claims 1 to 5, wherein the water inlet gallery and the water outlet gallery are connected to the chamber body, and the fairing is arranged at the tail end of the water inlet gallery and is positioned in the chamber body.

7. The cyclone grit chamber of claim 6, wherein the wall panels are arcuate in configuration and wherein the curvature of the wall panels corresponds to the curvature of the wall of the chamber.

8. The cyclone grit chamber of claim 6, wherein the water outlet of the water deflector is oriented in a tangential direction of the chamber body.

9. The cyclone grit chamber of claim 6, wherein the wall panels are connected to the chamber body by expansion bolts.

10. The cyclone grit chamber of claim 6, wherein the area of the inlet gallery end is the same as the area of the outlet.

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