CN201482753U - Cleaning device for water treatment aeration system - Google Patents

Abstract

The utility model relates to a cleaning device for a water treatment aeration system, which consists of a cleaning liquid container, a metering pump, an input pipeline, an intermediate pipeline, an output pipeline, a safety protection pipeline, a return pipeline, a two-position three-way valve, It consists of safety valve, atomizing nozzle, etc.; the metering pump sends the cleaning liquid in the container into the pipeline, and connects the atomizing nozzle through the end of the pipeline to form a mist cleaning liquid and spray it into the aeration channel to clean the aeration system. The utility model utilizes the formic acid solution to automatically and efficiently complete the cleaning work of the aeration equipment while the aeration equipment is working normally. Daily maintenance of aeration equipment; not only can effectively improve the aeration efficiency, but also can prevent the blower from running with load, effectively saving energy consumption.

Description

Cleaning device for water treatment aeration system

technical field

The utility model relates to the field of water treatment, in particular to a cleaning device for an aeration system for water treatment.

Background technique

The aeration system is an important part of the water treatment system, especially in the sewage tank, through aeration to dissolve the appropriate amount of oxygen in the water, it can keep the sewage treatment bacteria in the water treatment alive and work effectively, so the oxygen content is a very important parameter. The microporous aerator can generate very fine air bubbles, which effectively increases the contact interface area between air bubbles and water, and greatly improves the efficiency of dissolved oxygen. Therefore, it is more and more widely used in modern water treatment equipment.

But at the same time, because the pores of the microporous aerator are very small, they are extremely easy to block. The cause of clogged aerators is usually due to calcareous, ferrous deposits such as particles entering the fine pores of the aerator. If the equipment is continuously aerated for a long time, the clogging rate is very low; but if the aeration is interrupted, for example: due to insufficient power or related process reasons, the equipment stops aeration, and the pressure of the water will cause particles or dirt to enter the pores of the aerator cause blockage. A blockage will increase air back pressure, causing the blower to work harder, resulting in additional energy consumption.

Therefore, it is necessary to clean the clogged aerator. The following methods are usually used: one is to drain the pool and clean it with high-pressure water or cleaning agent and brush; the other is to move the aeration group out of the pool and remove the aerator. Wash them one by one. These methods not only need to suspend the normal operation of the equipment, but also require manual cleaning, which is time-consuming, laborious and inefficient, and seriously affects the normal operation of the entire water treatment system.

For the cleaning of the aeration system, 85% formic acid is an ideal chemical cleaning agent, which can powerfully and effectively dissolve the fouling in the micropores of most aerators. At the same time, it is safe and convenient to use, will not affect the growth process of organisms and bacteria, and will not corrode ABS, UPVC plastic pipes, stainless steel pipe fittings, rubber diaphragms commonly used in aeration systems, and galvanized pipes can also withstand formic acid to a certain extent of corrosion. However, during manual cleaning, there is unavoidably the potential danger of direct contact between formic acid and human skin. Although it is a weak acid, it still has corrosive effects and chemical toxicity, so necessary protective measures are required.

Utility model content

In order to solve the clogging problem of the aerator in the prior art, it is necessary to stop the operation of the aeration equipment and use manual cleaning of the aeration system, which is time-consuming, laborious, inefficient and has potential safety hazards, etc., a cleaning device for the water treatment aeration system is provided , which has the advantages of convenience, safety, high efficiency, and automatic cleaning under normal operating conditions of the equipment.

The technical scheme adopted in the utility model is as follows:

A cleaning device for a water treatment aeration system, including a cleaning liquid container, one end of an input pipeline is placed in the cleaning liquid container, the other end of the input pipeline is connected to the input end of a metering pump, and the metering pump is connected to a motor and a controller. The motor is driven and controlled by the controller; the output end of the metering pump is connected to the first intermediate pipeline, and the end of the first intermediate pipeline is connected to the inlet of the first three-way; the outlet of the first three-way passes through the second intermediate pipeline It is connected to the first passage port of the two-position three-way valve; the other outlet of the first three-way is connected to the inlet of the second three-way through a safety valve and a safety protection pipeline, and the second passage port of the two-position three-way valve is connected to the second passage port of the second three-way valve. The other inlet of the two-position three-way valve is connected, the outlet of the second three-way connection is connected to the return pipeline, and the return pipeline is connected to the cleaning liquid container; the third passage port of the two-position three-way valve is connected to the output pipeline, and at the The terminal is connected to an atomizing nozzle.

The terminal of the output pipeline is connected to the atomizing nozzle through a quick connector.

The utility model has reasonable structure and safe operation, can automatically and efficiently complete the cleaning work of the aeration equipment while the aeration equipment is working normally, avoids time-consuming and laborious inefficient work and dangers such as equipment shutdown and manual cleaning, and can conveniently and effectively realize aeration. Routine maintenance of aeration equipment; frequent cleaning of the aeration system can not only effectively improve the efficiency of aeration, but also prevent the blower from running with load, effectively saving energy consumption.

Description of drawings

Fig. 1 is the schematic diagram of the utility model structure;

Fig. 2 is the front view of structure of the present utility model;

Fig. 3 is the top view of Fig. 2;

Fig. 4 is a schematic diagram of a two-position three-way valve in a working state;

Fig. 5 is a schematic diagram of a two-position three-way valve in a closed state;

Fig. 6 is a schematic diagram of an atomizing nozzle and a quick connector;

Figure 7 is a schematic diagram of the installation of the atomizing nozzle on the straight pipe, a partial cross-sectional view;

Fig. 8 is a schematic diagram of the installation of the atomizing nozzle on the elbow, a partial cross-sectional view.

Detailed ways

The working principle of the utility model is specifically described according to accompanying drawing 1: the cleaning device of the water treatment aeration system is composed of the following parts: cleaning liquid container, metering pump, safety valve, two-position three-way valve, controller, pipeline and atomizing nozzle . Driven by the metering pump, the formic acid solution in the cleaning liquid container is pumped out, passes through the two-position three-way valve, and then passes through the atomizing nozzle. The formic acid solution forms a mist and sprays into the aeration channel. The fouling in the micropores of the aerator diaphragm is removed, keeping the aerator clean and operating at its best. The controller is electrically connected with the metering pump, provides the power supply of the metering pump and sets its running time, and the controller adopts the prior art. In case of failure such as blockage of the atomizing nozzle, the safety valve is automatically opened to return the formic acid solution to the cleaning solution container through the return line. After the cleaning machine is finished, switch the two-position three-way valve to return the residual acid in the acid supply hose to the cleaning solution container through the return line. Above-mentioned metering pump, safety valve, two-position three-way valve all adopt commercial goods.

The structural features of the utility model will be described in detail in conjunction with Fig. 2 and Fig. 3 . The bottom of the frame 1 is provided with a cleaning solution container 16 for placing 85% formic acid, and an input pipeline 2 is provided to lead into the cleaning solution container 16, and the input pipeline 2 adopts a PVC hose. A prior art filter 3 is arranged in the middle of the input pipeline 2, which can filter impurities in the formic acid and prevent solid impurities from entering the pump and subsequent pipelines. The end of the input pipeline 2 is connected to the input end of the metering pump 4, and the metering pump 4 is fixed on the frame 1; the metering pump 4 is driven by a motor 5. See Figure 2 and Figure 3, the output end of the metering pump 4 is connected to the first intermediate pipeline 6, and its end is connected to the inlet of the first three-way 7; see Figure 2, Figure 4 and Figure 5, the first three-way 7 One end outlet of the first three-way valve 9 is connected to the first passage port I of the two-position three-way valve 9 through the second intermediate pipeline 8; The three-way 12 is connected to the second access port II of the two-position three-way valve 9, as shown in Figure 2, another access port of the second three-way 12 is connected to the return line 17, and the cleaning solution is inserted into the return line 17 during work. container 16. The third passage port III of the two-position three-way valve 9 is connected to the output pipeline 13 shown in FIG. 3 , and the output pipeline 13 can also be a PVC hose, which is convenient for flexible bending and connection to the aeration pipeline. The outlet end of the output pipeline 13 is connected with a quick connector 14 , which can be connected to the connector of the atomizing nozzle 15 or can be quickly separated from the connector of the atomizing nozzle 15 .

See Fig. 2 to Fig. 5, when working, the metering pump 4 is driven by the motor 5, sucks the formic acid from the cleaning solution container through the input pipeline 2, and is filtered by the filter 3 arranged in the middle of the input pipeline 2, and the formic acid Suction metering pump 4 and through first intermediate line 6 to first tee 7 at its end. The first road formic acid reaches the second intermediate pipeline 8 and the two-position three-way valve 9 through an outlet of the first three-way 7, and the two-position three-way valve 9 is set to the working state as shown in Figure 4 during normal operation. The first passage port I communicates with the third passage port III, and the second passage port II is blocked, so the formic acid in the second intermediate pipeline 8 reaches the output pipeline 13 through the two-position three-way valve 9; , the formic acid pressure in the pipeline does not reach the threshold value of the safety valve 10, so the second formic acid passing through the other outlet of the first tee 7 is blocked by the safety valve 10 and cannot enter the safety protection pipeline 11. At this time, the first formic acid solution reaches the quick joint 14 and the atomizing nozzle 15 through the output pipeline 13, and is atomized and sprayed into the aeration pipeline 19 under the action of pressure to clean the aeration pipeline and the aerator. When the cleaning work is over, the two-position three-way valve 9 is turned to the closed position as shown in Figure 5. At this time, the second passage port II and the third passage port III of the two-position three-way valve 9 are connected, and the first passage port I At this time, the operator removes the atomizing nozzle from the aeration pipeline and raises the output pipeline 13. Under the action of gravity, the remaining formic acid in the output pipeline 13 flows into the safety protection pipeline through the two-position three-way valve 9 11, turn into the return line 17 when passing through the second tee 12, so as to return to the cleaning solution container 16.

When there is an abnormality in the equipment, such as the atomization nozzle 15 is blocked, the pressure of the formic acid solution in the entire pipeline increases and exceeds the threshold value set by the safety valve 10. At this time, the safety valve 10 is opened, and the formic acid solution pumped in by the metering pump 4 The formic acid solution cannot enter the second intermediate pipeline 8 and the two-position three-way valve 9 through the first three-way 7 to reach the output pipeline 13, but can only enter the safety protection pipeline 11 through the opened safety valve 10, and pass through the second three-way 12 flows into the return line 17, so as to return to the cleaning solution container 16, so as to prevent the pressure of the formic acid solution from being too high to cause the danger of pipeline leakage or damage to the equipment.

As shown in FIG. 6 , a quick female connector 14 is provided at the outlet end of the output pipeline, and a corresponding quick male connector is also provided on the side of the atomizing nozzle 15 . The quick joint 14 can be installed or disassembled directly from the joint end of the atomizing nozzle 15 quickly and conveniently, and the above-mentioned quick male and female joints adopt known prior art and standard parts.

As shown in FIGS. 7 and 8 , there are holes on the aeration pipe 19 , and a known inner wire external connector 18 is installed on the holes to facilitate the installation of the atomizing nozzle 15 . The atomizing nozzle 15 can be installed on the aeration pipeline 19 for a long time through the inner wire outer connection piece 18, and can also be disassembled from the aeration pipeline 19, and the inner wire outer connection piece 18 on the aeration pipeline 19 is blocked with a plug at ordinary times. Remove plug, install upper atomizing nozzle 15. Figure 7 shows the state installed on the straight pipe, the blower blows air in from the left side of the figure, and the atomizing nozzle 15 sprays the formic acid solution into the aeration pipe in the form of mist, which is absorbed by the air and brought into the rear aerator . Figure 8 shows the state installed on the elbow, as above, the blower blows air from the left side of the figure, and the nozzle 15 sprays the formic acid solution into the aeration pipe 19 in the form of mist, and is brought into the rear aerator by the air. Since the atomized formic acid and the air flow are vertical in the straight pipe, and the atomized formic acid and the air flow are parallel in the bent pipe state, the effect of installing the atomizing nozzle on the bent pipe is better than that on the straight pipe, and it is not easy It causes formic acid to deposit on the pipe wall and affects the cleaning effect. Generally speaking, it is recommended to install the atomizing nozzle 15 on the curved pipe section of the aeration pipe 19 , and it can be installed on the straight pipe section of the aeration pipe 19 if the conditions are not allowed or the space is limited.

The above description is an explanation of the utility model, not a limitation of the utility model. For the limited scope of the utility model, please refer to the claims. The utility model can be modified in any form without violating the spirit of the utility model.

Claims (2)

1. A cleaning device for a water treatment aeration system, characterized in that it includes a cleaning liquid container, one end of the input pipeline is placed in the cleaning liquid container, the other end of the input pipeline is connected to the input end of the metering pump, and the metering pump is connected to The motor and the controller are driven by the motor and controlled by the controller; the output end of the metering pump is connected to the first intermediate pipeline, and the end of the first intermediate pipeline is connected to the inlet of the first three-way; the outlet of the first three-way It is connected to the first passage port of the two-position three-way valve through the second intermediate pipeline; the other outlet of the first three-way is connected to the inlet of the second three-way through a safety valve and a safety protection pipeline, and the two-position three-way valve The second passage is connected to the other inlet of the second three-way, the outlet of the second three-way is connected to the return pipeline, and the return pipeline is connected back to the cleaning liquid container; the third passage of the two-position three-way valve is connected to the output pipeline , connect the atomizing nozzle at the end of the output pipeline. 2. A cleaning device for a water treatment aeration system according to claim 1, characterized in that: the terminal of the output pipeline is connected to the atomizing nozzle through a quick joint.

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