CN214763930U

CN214763930U - Preprocessing device suitable for sewage automatic monitoring system

Info

Publication number: CN214763930U
Application number: CN202120505658.3U
Authority: CN
Inventors: 吴芳超
Original assignee: Jiaxing United Sewage Treatment Co ltd
Current assignee: Jiaxing United Sewage Treatment Co ltd
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2021-11-19
Anticipated expiration: 2031-03-10

Abstract

The utility model discloses a preprocessing device suitable for automatic sewage monitoring system, including box and filter screen, have the opening on box side upper portion, box inside surface lower part is equipped with the filter screen fixed slot, the filter screen inserts in the box from the opening on box side upper portion, and the filter screen lower extreme is located the filter screen fixed slot, the filter screen slope sets up, is equipped with inlet tube and outlet pipe respectively in box both sides, the inlet tube is located the filter screen below, and the outlet pipe is located the filter screen above; the device can realize separation of solid particles and fibers under the action of gravity through down-in and up-out filtering, when in use, a filter screen inserted in the shell only needs to intercept the fibers, the solid particles are accumulated near the emptying pipe through the inclined plate and can be emptied through the valve of the emptying pipe, and the inside of the device does not need to be cleaned; only the filter screen plate needs to be replaced regularly, and the device does not need to be stopped during replacement; and the device has smaller volume and wider application range.

Description

Preprocessing device suitable for sewage automatic monitoring system

Technical Field

The utility model relates to a town sewage treatment plant total inflow automatic monitoring system specifically is a preprocessing device suitable for sewage automatic monitoring system.

Background

The total water inflow components of the urban sewage treatment plant are complex, and particularly, small solid particles, filamentous fibers and flocculent fibers greatly interfere the normal operation of an automatic water inflow monitoring instrument, so that the completeness and accuracy of inflow data are seriously influenced. The pretreatment device is a pretreatment facility which is arranged by utilizing the principle of physical filtration to meet the water quality requirement of an online monitoring instrument under the condition of not changing the quality of inlet water, and is the throat of the online monitoring instrument.

The existing pretreatment device is generally a top-in bottom-out type pretreatment device or a pretreatment device built in a simulated rotational flow grit chamber, wherein the pretreatment device utilizes a filter screen to intercept solid particles and filamentous and flocculent fibers, the maintenance period is short, the cleaning amount is large, the amount of the filter is large, and the size is large in order to meet the operation requirement; in the latter, a stirring motor is arranged in the middle position, the solid is separated to the periphery of the pretreatment device by utilizing centrifugal force, and the motor is required to be arranged for stirring and the periodical cleaning has large workload and large volume.

Both the pretreatment device and the water sample have the defects of high operation and maintenance cost, incapability of visually judging the cleaning time of the pretreatment device, large volume, insufficient real-time property of the water sample and the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a preprocessing device suitable for sewage automatic monitoring system to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a pretreatment device suitable for an automatic sewage monitoring system comprises a box body and a filter screen, wherein an opening is formed in the upper portion of the side face of the box body, a filter screen fixing groove is formed in the lower portion of the inner side face of the box body, the filter screen is inserted into the box body from the opening in the upper portion of the side face of the box body, the lower end of the filter screen is located in the filter screen fixing groove, the filter screen is arranged in an inclined mode, a water inlet pipe and a water outlet pipe are respectively arranged on two sides of the box body, the water inlet pipe is located below the filter screen, and the water outlet pipe is located above the filter screen; the bottom in the box is equipped with the swash plate, and the cartridge has the blow-down pipe on the swash plate, the blow-down pipe lower extreme stretches out the box below.

As the preferred scheme of the utility model: the filter screen includes PVC board and fixed fence, fixed fence and PVC board fixed connection, and the fixed fence is "field" font, and the fixed fence inboard is equipped with four filter screen bodies rather than sealed butt joint.

As a further preferred embodiment of the present invention: the upper portions of two sides of the box body are respectively provided with a first overflow pipe and a second overflow pipe which are communicated with the inside of the box body, the second overflow pipe is connected with a sensor, the joint of the second overflow pipe and the box body is located above the filter screen body, the first overflow pipe is located above the water outlet pipe, and the sensor is connected into a DCS system or an alarm device.

As a further preferred embodiment of the present invention: and valves are arranged on the water inlet pipe, the water outlet pipe, the emptying pipe, the first overflow pipe and the second overflow pipe.

Compared with the prior art, the beneficial effects of the utility model are that: the device can realize separation of solid particles and fibers under the action of gravity through down-in and up-out filtering, when in use, a filter screen inserted in the shell only needs to intercept the fibers, the solid particles are accumulated near the emptying pipe through the inclined plate and can be emptied through the valve of the emptying pipe, and the inside of the device does not need to be cleaned; only the filter screen plate needs to be replaced regularly, and the device does not need to be stopped during replacement; and the device has smaller volume and wider application range.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of the middle filter screen of the present invention.

In the figure, 1-a box body, 2-a filter screen, 3-a water inlet pipe, 4-a water outlet pipe, 5-an inclined plate, 6-a blow-down pipe, 7-a filter screen fixing groove, 8-a first overflow pipe, 9-a second overflow pipe, 10-a sensor, 11-a PVC plate, 12-a fixing fence and 13-a filter screen body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, in an embodiment of the present invention, a pretreatment device suitable for an automatic sewage monitoring system includes a box 1 and a filter screen 2, an opening is provided on an upper portion of a side of the box 1, a filter screen fixing groove 7 is provided on a lower portion of an inner side surface of the box 1, the filter screen 2 is inserted into the box 1 from the opening on the upper portion of the side of the box 1, a lower end of the filter screen 2 is located in the filter screen fixing groove 7, the filter screen 2 is inclined, a water inlet pipe 3 and a water outlet pipe 4 are respectively provided on two sides of the box 1, the water inlet pipe 3 is located below the filter screen 2, and the water outlet pipe 4 is located above the filter screen 2.

When filtering, sewage from inlet tube 3 get into in the box 1 to through filter screen 2 upflow under the pressure effect and discharge by outlet pipe 4, through "advance down and go up out" formula filtration, under the action of gravity, solid particle and fibre can realize the separation, filter screen 2 only need intercept the fibre can, solid particle is through 5 accumulations of swash plate near blow-down pipe 6, can the evacuation through 6 valves of blow-down pipe, need not to wash this device is inside. Only the filter screen 2 plate needs to be replaced regularly, and the device does not need to be stopped when the filter screen is replaced. This filter only adopts simple physics to filter to do not produce other energy consumptions, economy, high efficiency, fortune dimension are with low costs to filter screen 2 is inserted to one side in box 1, and filter screen 2 interception begins earlier by the bottom, up step by step, can obviously observe the filtration boundary line, and then judges the cleaning time.

Further, the bottom is equipped with the swash plate 5 in the box 1, and the cartridge has blow-down pipe 6 on the swash plate 5, the 6 lower extremes of blow-down pipe stretch out box 1 below, and the swash plate 5 makes things convenient for solid particle etc. to 6 direction aggregations of blow-down pipe, and after having ended sewage filtering work, remaining sewage and debris accessible blow-down pipe 6 under the interception discharge in the box 1 to it causes the pollution corrosion to the box 1 in to continuously have a large amount of sewage in avoiding the box 1.

As shown in fig. 2, the filter screen 2 includes a PVC plate 11 and a fixed rail 12, the fixed rail 12 is fixedly connected with the PVC plate 11, the fixed rail 12 is shaped like a Chinese character 'tian', and four filter screen bodies 13 hermetically butted with the fixed rail 12 are arranged on the inner side of the fixed rail 12.

Simultaneously, 1 both sides upper portion of box is equipped with first overflow pipe 8 and the second overflow pipe 9 rather than inside being linked together respectively, is connected with sensor 10 on second overflow pipe 9, the junction of second overflow pipe 9 and box 1 is located filter screen body 13 top, and first overflow pipe 8 is located outlet pipe 4 top, and through the setting of first overflow pipe 8 and second overflow pipe 9, the drainage of outlet pipe 4 is not up when can avoiding sewage to excessively advance, and the setting of second overflow pipe 9 position is higher than the highest filter surface of filter screen 2, when filter screen 2 loses the filter capacity, just plays a role, prevents to continue to advance and leads to the device overflow, and sensor 10 can output switching value signal, DCS inserts system or alarm device, reminds the user, clears up or changes filter screen 2.

And valves are arranged on the water inlet pipe 3, the water outlet pipe 4, the emptying pipe 6 and the first overflow pipe 8.

The device has the characteristics that: 1) the water inlet pipe 3, the second overflow pipe 9 and the emptying pipe 6 are PVC pipes with large pipe diameters, so that pipelines are not blocked by sewage; the water outlet pipe 3 is a small-pipe-diameter PVC pipe, so that excessive water delivery is prevented from impacting the instrument; the first overflow pipe 8 is a large-diameter PVC pipe, so that the overflow of the upper side of the filter screen caused by large water amount is prevented; the box 1 is a small box, so that the real-time performance of a water sample is ensured.

2) The double inclined plates are specifically the inclined plates 5 arranged at the bottom of the box body 1, which is beneficial to the aggregation of solid particles and other impurities; the filter plate inclines, is favorable to observing the filtration boundary, judges life, arranges the cleaning cycle.

3) "alarm", specifically do the junction of second overflow pipe 9 and box is located this 13 body tops of filter screen and connection sensor 10, and when filter screen 2 had the filter capacity, second overflow pipe 9 and sensor 10 were out of work, and when filter screen 2 did not possess the filter capacity, liquid level rose in the box 1, through the discharge of second overflow pipe 9, sensor 10 work, output switching value, DCS system or alarm received behind the switching value, and the warning reminds the staff to maintain the filter screen.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a preprocessing device suitable for sewage automatic monitoring system, includes box (1) and filter screen (2), its characterized in that has the opening on box (1) side upper portion, box (1) medial surface lower part is equipped with filter screen fixed slot (7), filter screen (2) insert box (1) from the opening on box (1) side upper portion, and filter screen (2) lower extreme is located filter screen fixed slot (7), filter screen (2) slope sets up, is equipped with inlet tube (3) and outlet pipe (4) respectively in box (1) both sides, inlet tube (3) are located filter screen (2) below, and outlet pipe (4) are located filter screen (2) top; the bottom is equipped with swash plate (5) in box (1), and the cartridge has blow-down pipe (6) on swash plate (5), blow-down pipe (6) lower extreme stretches out box (1) below.

2. The pretreatment device of claim 1, wherein the filter screen (2) comprises a PVC plate (11) and a fixed fence (12), the fixed fence (12) is fixedly connected with the PVC plate (11), the fixed fence (12) is shaped like a Chinese character 'tian', and four filter screen bodies (13) which are hermetically butted with the fixed fence (12) are arranged on the inner side of the fixed fence (12).

3. The pretreatment device for the automatic sewage monitoring system according to claim 1, wherein a first overflow pipe (8) and a second overflow pipe (9) communicated with the interior of the box body (1) are respectively arranged at the upper parts of the two sides of the box body (1), a sensor (10) is connected to the second overflow pipe (9), the sensor (10) is connected to a DCS system or an alarm device, the joint of the second overflow pipe (9) and the box body (1) is positioned above the filter screen body (13), and the first overflow pipe (8) is positioned above the water outlet pipe (4).

4. The pretreatment device for the automatic sewage monitoring system according to claim 3, wherein valves are disposed on the water inlet pipe (3), the water outlet pipe (4), the emptying pipe (6) and the first overflow pipe (8).