Cleaning device for internal inflow type screen plate grille cleaner

Abstract

The utility model relates to a cleaning device for an internal inflow type screen plate grille decontamination machine, which comprises a water storage tank, an internal inflow screen plate grille and a controller, a water inlet of the water storage tank is connected with a water replenishing pipe, a water replenishing electromagnetic valve is arranged on the water replenishing pipe, a water outlet of the water storage tank is connected with a water supply pipe, and the controller is connected with the controller. A medium-pressure cleaning pipe and a high-pressure cleaning pipe are connected between the water supply pipe and a grating cleaning opening of the inner inflow screen plate grating, a medium-pressure centrifugal pump and a medium-pressure cleaning electromagnetic valve are arranged on the medium-pressure cleaning pipe, and a high-pressure centrifugal pump and a high-pressure cleaning electromagnetic valve are arranged on the high-pressure cleaning pipe. The water supplementing electromagnetic valve, the medium-pressure centrifugal pump, the high-pressure centrifugal pump, the medium-pressure cleaning electromagnetic valve and the high-pressure cleaning electromagnetic valve are all connected with the controller. The cleaning device is compact in structure, reasonable in design, capable of saving energy and occupied space, flexible, variable and efficient in operation mode, ideal in cleaning effect, high in automation degree and capable of effectively reducing the workload of operation and maintenance personnel and reducing the equipment fault probability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of water treatment especially relates to a cleaning device for inner flow type net plate grid cleaner. BACKGROUND

[0002] The inner flow type net plate grid is an important filtering equipment in the pretreatment section of the sewage treatment plant, has high interception efficiency, good effluent quality and stable operation. The sewage enters the grid from the water inlet, is filtered through the net plate, the filtered water flows to the outside of the net plate, and the pollutants are intercepted on the inner surface of the net plate and are taken to the top with the continuous rotation of the net plate. In the working process of the inner flow type net plate grid, the hair and small pollutants in the sewage can easily cause the net plate to be blocked, affecting the filtering efficiency of the grid, so the inner flow type net plate grid usually needs to be cleaned by using a cleaning device to ensure the water passing capacity of the inner flow type net plate grid.

[0003] The existing inner flow type net plate grid cleaning system generally has a cleaning water pressure of 0.6MPa, usually only uses a medium-pressure pump, needs a special pipeline, or uses a constant-pressure water supply pump set to provide constant-pressure and stable cleaning water for the inner flow type net plate grid, increases the equipment cost, needs a pressure stabilizing tank, occupies a large area, and in the case that there is no reclaimed water source, tap water needs to be used as the cleaning water source of the inner flow type net plate grid, increases the operation cost of the grid, is not conducive to environmental protection and saving of valuable water resources. Some cleaning systems add a high-pressure pump based on experience, but the pipeline design is complex, the cleaning is not complete when the grid is blocked by special pollutants such as high-adhesion pollutants, and the effect is not ideal. In addition, the cleaning devices on the market usually can only realize manual operation or semi-automatic operation, and the operation mode is time-consuming and laborious.

[0004] Therefore, it is necessary to provide a cleaning system and a corresponding operation mode which are more perfect, have better effect and are more environmentally friendly. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the deficiency of prior art and provides a cleaning device for an inner flow type net plate grid cleaner.

[0006] The utility model discloses the following technical scheme to realize the purpose:

[0007] The utility model relates to a kind of cleaning device for inner flow net plate grid cleaner, including water storage tank, inner flow net plate grid and controller, the water inlet of water storage tank is connected with make-up pipe, make-up pipe is equipped with make-up solenoid valve, the water outlet of water storage tank is connected with water supply pipe, water supply pipe and the grid cleaning mouth of inner flow net plate grid are connected with medium-pressure cleaning pipe, high-pressure cleaning pipe between, medium-pressure cleaning pipe is equipped with medium-pressure centrifugal pump, medium-pressure cleaning solenoid valve, high-pressure cleaning pipe is equipped with high-pressure centrifugal pump, high-pressure cleaning solenoid valve, make-up solenoid valve, medium-pressure centrifugal pump, high-pressure centrifugal pump, medium-pressure cleaning solenoid valve, high-pressure cleaning solenoid valve are connected with controller.

[0008] Water storage tank is installed with magnetic flap liquid level meter, and magnetic flap liquid level meter is connected with controller.

[0009] Inner flow net plate grid upstream is installed with ultrasonic liquid level meter, and ultrasonic liquid level meter is connected with controller.

[0010] Make-up pipe front end is installed with Y type filter.

[0011] Medium-pressure centrifugal pump has two, and is arranged in parallel on medium-pressure cleaning pipe.

[0012] Inner flow net plate grid top is provided with a summary cleaning pipe, and nozzle is evenly provided on summary cleaning pipe, and grid cleaning mouth is connected with summary cleaning pipe.

[0013] The beneficial effects of the utility model are: the utility model has compact structure, reasonable design, can save energy, save land occupation, and the operation mode is flexible and changeable and efficient, the cleaning effect is ideal, the degree of automation is high, can effectively reduce the workload of operation and maintenance personnel, reduces the equipment failure probability. ACCURACY OF DRAWINGS

[0014] Fig. 1 It is structure schematic view of the utility model;

[0015] Fig. 2 It is detailed view of inner flow net plate grid;

[0016] In the drawing: 1-Y type filter;2-make-up solenoid valve;3-water storage tank;4-magnetic flap liquid level meter;5-ultrasonic liquid level meter;6-medium-pressure centrifugal pump;7-high-pressure centrifugal pump;8-inner flow net plate grid;9-controller;10-make-up pipe;11-water supply pipe;12-medium-pressure cleaning pipe;13-high-pressure cleaning pipe;14-medium-pressure cleaning solenoid valve;15-high-pressure cleaning solenoid valve;16-grid cleaning mouth;17-summary cleaning pipe;

[0017] The following will be combined with the embodiment of the utility model and be described in detail with reference to the drawings. DETAILED DESCRIPTION

[0018] The principles and features of the present application are described below in conjunction with the accompanying drawings, in which the embodiments are presented only for the purpose of explaining the present application and are not intended to limit the scope of the present application. In the following paragraphs, the present application is described in more detail with reference to the accompanying drawings. The advantages and features of the present application will be more apparent from the following description. It should be noted that the drawings are greatly simplified and use non-precise proportions, only to facilitate, clarify the purpose of assisting the description of the embodiments of the present application.

[0019] It should be noted that when a component is referred to as being "fixed" to another component, it can be directly on the other component or there can be intervening components. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or there can be intervening components. When a component is referred to as being "disposed" on another component, it can be directly on the other component or there can be intervening components. The terms "vertical", "horizontal", "left", "right", and similar terms as used herein are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0021] The present application is further described below in conjunction with the accompanying drawings and embodiments:

[0022] A cleaning device for an inner flow type screen grid cleaner, as shown in Figs. 1-2 Fig. 1, comprises a Y-type filter 1, a water replenishing electromagnetic valve 2, a water storage tank 3, a magnetic flap liquid level meter 4, an ultrasonic liquid level meter 5, a medium pressure centrifugal pump 6, a high pressure centrifugal pump 7, an inner flow type screen grid 8, a controller 9, a water replenishing pipe 10, a water supply pipe 11, a medium pressure cleaning pipe 12, a high pressure cleaning pipe 13, a medium pressure cleaning electromagnetic valve 14, a high pressure cleaning electromagnetic valve 15, a grid cleaning port 16, and a collection cleaning pipe 17.

[0023] The water replenishing pipe 10 is connected to the water inlet of the water storage tank 3, and the water replenishing electromagnetic valve 2 is arranged on the water replenishing pipe 10. The water outlet of the water storage tank 3 is connected to the water supply pipe 11, and the medium pressure cleaning pipe 12 and the high pressure cleaning pipe 13 are respectively connected between the water supply pipe 11 and the grid cleaning port 16 of the inner flow type screen grid 8. The medium pressure centrifugal pump 6 and the medium pressure cleaning electromagnetic valve 14 are arranged on the medium pressure cleaning pipe 12, and the high pressure centrifugal pump 7 and the high pressure cleaning electromagnetic valve 15 are arranged on the high pressure cleaning pipe 13. The water replenishing electromagnetic valve 2, the medium pressure centrifugal pump 6, the high pressure centrifugal pump 7, the medium pressure cleaning electromagnetic valve 14, and the high pressure cleaning electromagnetic valve 15 are all connected to the controller 9.

[0024] The water replenishing pipe 10, the medium-pressure cleaning pipe 12 and the high-pressure cleaning pipe 13 are made of stainless steel 304, and can resist high pressure and corrosion.

[0025] The water storage tank 3 is provided with a magnetic flap liquid level meter 4, which can monitor the liquid level in the water storage tank 3.

[0026] The water replenishing electromagnetic valve 2 and the magnetic flap liquid level meter 4 are controlled by the controller 9, and can automatically open the valve to replenish water according to the liquid level in the water storage tank 3.

[0027] The inner flow net plate grid 8 is provided with an ultrasonic liquid level meter 5 upstream, and the ultrasonic liquid level meter 5 is connected with the controller 9.

[0028] The water replenishing pipe 10 is provided with a Y-shaped filter 1 at the front end, which can filter the reclaimed water.

[0029] The medium-pressure centrifugal pump 6 is provided with two pumps, which are arranged in parallel on the medium-pressure cleaning pipe 12.

[0030] The inner flow net plate grid 8 is provided with a collection cleaning pipe 17 at the top, the collection cleaning pipe 17 is uniformly provided with nozzles, and the grid cleaning port 16 is connected with the collection cleaning pipe 17.

[0031] The utility model discloses a reclaimed water as the cleaning water source, the water replenishing pipe 10 is the water pipe between the factory reclaimed water and the water storage tank 3, the medium-pressure centrifugal pump 6, high-pressure centrifugal pump 7 are arranged at the water outlet side of water storage tank 3, are connected through water supply pipe 11, and the grid cleaning port 16 of inner flow net plate grid 8 is communicated with the medium-pressure centrifugal pump 6, high-pressure centrifugal pump 7 through medium-pressure cleaning pipe 12, high-pressure cleaning pipe 13.

[0032] The medium-pressure cleaning pipe 12 and the high-pressure cleaning pipe 13 are respectively provided with a medium-pressure cleaning electromagnetic valve 14 and a high-pressure cleaning electromagnetic valve 15, which can switch the medium-pressure and high-pressure cleaning of the inner flow net plate grid 8 and realize the combined cleaning of medium-pressure and high-pressure.

[0033] The water replenishing pipe 10 is provided with a Y-shaped filter 1 and a water replenishing electromagnetic valve 2, and the Y-shaped filter 1 can filter the reclaimed water.

[0034] The water storage tank 3 is provided with a magnetic flap liquid level meter 4 outside, which can observe the liquid level in the water storage tank 3 in real time, and is linked with the water replenishing electromagnetic valve 2 on the water replenishing pipe 10, so that when the liquid level in the water storage tank 3 is low, the electromagnetic valve 2 automatically opens to replenish water into the water storage tank 3.

[0035] The operation method of the utility model discloses that the characteristics are that the switching can be freely switched, the upstream liquid level of the inner flow net plate grid 8, the time interval and the medium-pressure cleaning times are used as the basis, and the specific implementation is based on:

[0036] The ultrasonic liquid level meter 5 upstream of the inner flow net plate grid 8 is automatically started when the liquid level reaches the cleaning liquid level set in the controller 9 and maintains the liquid level for a certain period of time (which can be adjusted). The controller 9 is provided with a cleaning time interval, which can record the shortest time from the end of cleaning to the next time when the cleaning liquid level is reached. The time interval can be adjusted according to the actual situation. When the interval time of reaching the cleaning liquid level again during the filtration process is greater than the built-in cleaning interval time, the controller 9 defaults that the blockage is mild blockage and needs to perform the medium-pressure cleaning process a. When the interval time of reaching the cleaning liquid level again is less than the built-in cleaning interval time, the controller 9 defaults that the blockage is severe blockage and needs to perform the high-pressure cleaning process b. When the medium-pressure cleaning is performed for N times (which can be changed), the high-pressure cleaning is performed once.

[0037] In particular, when the interval time of reaching the cleaning liquid level again is less than the built-in cleaning interval time after the high-pressure cleaning, the controller defaults that the blockage is special blockage and needs to perform the medium and high-pressure combined cleaning process c.

[0038] The medium-pressure cleaning process a is provided with the following steps:

[0039] a) Open the water replenishment electromagnetic valve 2 on the water replenishment pipe 10 to replenish water to the water storage tank 3;

[0040] b) Open the medium-pressure cleaning electromagnetic valve 14 on the medium-pressure cleaning pipe 12 and open the inner flow net plate grid motor, and the net plate starts to operate;

[0041] c) Open the medium-pressure centrifugal pump 6 to start the medium-pressure cleaning;

[0042] d) After the cleaning time reaches the time set by the controller 9, close the medium-pressure centrifugal pump 6, close the motor of the inner flow net plate grid 8, and close the medium-pressure cleaning electromagnetic valve 14.

[0043] e) The liquid level upstream of the inner flow net plate grid 8 returns to normal, and the medium-pressure cleaning process is completed.

[0044] The high-pressure cleaning process b is provided with the following steps:

[0045] a) Open the water replenishment electromagnetic valve 2 on the water replenishment pipe 10 to replenish water to the water storage tank 3;

[0046] b) Open the high-pressure cleaning electromagnetic valve 15 on the high-pressure cleaning pipe 13 and open the inner flow net plate grid motor, and the net plate starts to operate;

[0047] c) Open the high-pressure centrifugal pump 7 to start the high-pressure cleaning;

[0048] d) the cleaning time reaches the time set by the controller 9, the high-pressure centrifugal pump 7 is closed, the motor of the inner flow net plate grid 8 is closed, and the high-pressure cleaning electromagnetic valve 15 is closed.

[0049] e) the liquid level upstream of the inner flow net plate grid 8 returns to normal, and the high-pressure cleaning process is completed.

[0050] The high-pressure cleaning process c has the following steps:

[0051] a) the water replenishment electromagnetic valve 2 on the water replenishment pipe 10 is opened, and the water storage tank 3 is replenished with water;

[0052] b) the medium-pressure cleaning electromagnetic valve 14 and the high-pressure cleaning electromagnetic valve 15 are opened at the same time, and the inner flow net plate grid motor is opened, and the net plate starts to run;

[0053] c) the medium-pressure centrifugal pump 6 and the high-pressure centrifugal pump 7 are opened, and the medium-pressure and high-pressure combined cleaning is started;

[0054] d) the cleaning time reaches the time set by the controller 9, the medium-pressure centrifugal pump 6 and the high-pressure centrifugal pump 7 are closed, the motor of the inner flow net plate grid 8 is closed, and the medium-pressure cleaning electromagnetic valve 14 and the high-pressure cleaning electromagnetic valve 15 are closed.

[0055] e) the liquid level upstream of the inner flow net plate grid 8 returns to normal, and the medium-pressure and high-pressure combined cleaning process is completed.

[0056] The above operation mode is completed by the controller 9, and the controller 9 is a Siemens 1214C.

[0057] The controller 9 is connected with the magnetic reed liquid level meter 4 of the water storage tank 3, the ultrasonic liquid level meter 5 at the front end of the grid channel, the medium-pressure centrifugal pump 6, the high-pressure centrifugal pump 7, the water replenishment electromagnetic valve 2, the medium-pressure cleaning electromagnetic valve 14, the high-pressure cleaning electromagnetic valve 15, etc., and the inner flow net plate grid 8 is automatically cleaned according to the liquid level upstream of the inner flow net plate grid 8 and the cleaning interval time, and the medium-pressure cleaning, the high-pressure cleaning and the medium-pressure and high-pressure combined cleaning can be determined according to the live situation.

[0058] The utility model has the advantages of compact structure, reasonable design, energy saving, land saving, flexible and efficient operation mode, ideal cleaning effect, high automation degree, reduced workload of operation and maintenance personnel, and reduced probability of equipment failure.

[0059] The utility model has been described above in conjunction with the drawings, and obviously, the specific implementation of the utility model is not limited by the above mode, and various improvements adopting the method concept and technical solution of the utility model or direct application in other occasions without improvement are within the protection scope of the utility model.

Claims

1. A cleaning device for an in-flowing screen rack grit cleaner, characterized in that It includes water storage tank (3), inner flow net plate grid (8) and controller (9), the water inlet of water storage tank (3) is connected with water supplement pipe (10), water supplement pipe (10) is equipped with water supplement electromagnetic valve (2), the water outlet of water storage tank (3) is connected with water supply pipe (11), water supply pipe (11) and the grid cleaning port (16) between inner flow net plate grid (8) are connected with medium pressure cleaning pipe (12), high pressure cleaning pipe (13) respectively, medium pressure cleaning pipe (12) is equipped with medium pressure centrifugal pump (6), medium pressure cleaning electromagnetic valve (14), high pressure cleaning pipe (13) is equipped with high pressure centrifugal pump (7), high pressure cleaning electromagnetic valve (15), water supplement electromagnetic valve (2), medium pressure centrifugal pump (6), high pressure centrifugal pump (7), medium pressure cleaning electromagnetic valve (14), high pressure cleaning electromagnetic valve (15) are connected with controller (9).

2. A cleaning device for an in-flow net panel grid cleaner according to claim 1, characterized in that Water storage tank (3) is installed with magnetic flap liquid level meter (4), and magnetic flap liquid level meter (4) is connected with controller (9).

3. A cleaning device for an in-flow net panel screen cleaner according to claim 2, characterized in that The upstream of inner flow net plate grid (8) is installed with ultrasonic liquid level meter (5), and ultrasonic liquid level meter (5) is connected with controller (9).

4. A cleaning device for an in-flow net panel grid cleaner according to claim 3, characterized in that The front end of water supplement pipe (10) is installed with Y type filter (1).

5. A cleaning device for an in-flow net panel screen cleaner according to claim 4, characterized in that Medium pressure centrifugal pump (6) has two, and is connected in parallel on medium pressure cleaning pipe (12).

6. A cleaning device for an in-flow net panel screen cleaner according to claim 5, characterized in that The top of inner flow net plate grid (8) is provided with a summary cleaning pipe (17), and the summary cleaning pipe (17) is evenly provided with nozzle, and the grid cleaning port (16) is connected with the summary cleaning pipe (17).

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