CN215439749U - Air-floating air dissolving system - Google Patents

Abstract

The utility model discloses an air flotation air dissolving system, wherein a manhole is arranged on one side of the upper end of a pressure air dissolving tank body, a plurality of groups of air inlet interfaces are equidistantly arranged on the upper end of the pressure air dissolving tank body, the upper end of the pressure air dissolving tank body is also connected with a safety valve interface, the upper end of the pressure air dissolving tank body is also connected with a pressure gauge interface, the side surface of the pressure air dissolving tank body is connected with a circular viewing mirror, the side surface of the pressure air dissolving tank body is also connected with a liquid level device, and the tail part of the pressure air dissolving tank body is connected with a water inlet; the gas dissolving efficiency is as high as 98 percent and is close to a saturation value; the water flow is large, and the load rate of the section of the tank can reach 5000m3/m2. d; the water level meter is arranged, so that the operation and management are convenient, and the stable work of the releaser can be ensured; the energy consumption of the air compressor can be saved, the continuous operation time is greatly shortened, and the service life of the air compressor is prolonged; the lift of the water pump is effectively utilized, the power consumption is saved, and the blockage of the spray head is avoided; greatly reducing the volume of the tank and the manufacturing cost.

Description

Air-floating air dissolving system

Technical Field

The utility model relates to the technical field of dissolved air tanks, in particular to an air flotation and dissolved air system.

Background

The air-floating and air-dissolving system is an important equipment in air-floating and air-purifying process, and the compressed air and pressure water can make a large quantity of air be dissolved in water by means of diffusion, dissolution and mass transfer in the air-dissolving tank. The air flotation machine dissolved air tank of application number CN201920124165.8 has solved the problem that the floater on the dissolved air tank in the market vibrates easily, leads to the trouble of its controlled air compressor frequent start.

However, the above patents still have certain defects, and the problems that the gas-water ratio cannot be automatically controlled and adjusted and the gas dissolving effect is poor exist. Therefore, an air floatation and air dissolution system is provided.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to an air-floating air-dissolving system to solve the above problems.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an air supporting dissolves gas system, dissolves the gas pitcher body including pressure, pressure dissolves upper end one side of gas pitcher body and is equipped with the manhole, pressure dissolves the upper end equidistance of gas pitcher body and is equipped with a plurality of groups interface that admits air, pressure dissolves the upper end of gas pitcher body and still is connected with the relief valve interface, pressure dissolves the upper end of gas pitcher body and still is connected with the manometer interface, pressure dissolves the side of gas pitcher body and is connected with the round sight glass, pressure dissolves the side of gas pitcher body and still is connected with the liquid level ware, the afterbody that the gas pitcher body was dissolved to pressure has the water inlet, pressure dissolves the lower extreme of gas pitcher body and is connected with the delivery port, pressure dissolves the bottom of gas pitcher body and is connected with the support.

As the further optimization of the technical scheme, the support is fixed on the ground through the bolts, so that the support is convenient to connect and detach and is convenient to fix and stable.

As a further optimization of the technical scheme, the air inlet interface, the safety valve interface and the pressure gauge interface are sequentially arranged, ordered and evenly distributed, and the efficiency is favorably exerted.

As the further optimization of the technical scheme, the support is at least arranged in four groups of equal distances, the connection stability is good, the support is stable, and the stability of the pressure dissolved air tank body is further guaranteed.

As a further optimization of the technical scheme, the water inlet and the water outlet are positioned at the same end of the pressure dissolved air tank body, and the functions of water inlet and water drainage can be realized.

As the further optimization of the technical scheme, the water inlet extends to the middle section inside the pressure dissolved air tank body, and water cannot be poured.

Compared with the prior art, the utility model has the beneficial effects that: the utility model has the following advantages: the gas dissolving efficiency is up to 98%, and the release amount is about 90-99% of the theoretical saturated gas dissolving amount when the water temperature is close to the saturation value (at 30 ℃); the water flow is large, and the load rate of the section of the tank can reach 5000m3/m2. d; the water level meter is arranged, so that the operation and management are convenient, and the stable work of the releaser can be ensured; the air compressor operates under the condition of not discharging undissolved air, so that the energy consumption of the air compressor can be saved, the continuous operation time is greatly shortened, and the service life of the air compressor is prolonged; the water is uniformly distributed with small resistance, and the pressure drop is only one tenth of that of the water distribution of the spray head, so that the lift of a water pump is effectively utilized, the power consumption is saved, and the blockage of the spray head is avoided; compared with the foreign advanced level, the gas dissolving efficiency is improved by 5-10%; the water passing density is improved by 1-5 times; the hydraulic retention time of the dissolved air tank is only 51s (originally 3-5 min), so that the volume of the tank is greatly reduced, and the manufacturing cost is reduced.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic side view of the present invention;

fig. 3 is a schematic structural diagram of the pressure dissolved air tank body in a top view.

In the figure: 1. a manhole; 2. a pressure dissolved air tank body; 3. an air inlet interface; 4. a safety valve interface; 5. a pressure gauge interface; 6. a round sight glass; 7. a liquid level gauge; 8. a water inlet; 9. a water outlet; 10. and (4) a bracket.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless otherwise specified, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", and the like, indicate orientations or state relationships based on the orientations or state relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that a referred mechanism or component must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an air flotation dissolved air system comprises a pressure dissolved air tank body 2, wherein a manhole 1 is arranged on one side of the upper end of the pressure dissolved air tank body 2, a plurality of groups of air inlet interfaces 3 are arranged on the upper end of the pressure dissolved air tank body 2 at equal intervals, a safety valve interface 4 is also connected to the upper end of the pressure dissolved air tank body 2, a pressure gauge interface 5 is also connected to the upper end of the pressure dissolved air tank body 2, the air inlet interfaces 3, the safety valve interface 4 and the pressure gauge interface 5 are sequentially arranged, a circular viewing mirror 6 is connected to the side surface of the pressure dissolved air tank body 2, a liquid level device 7 is also connected to the side surface of the pressure dissolved air tank body 2, a water inlet 8 is connected to the tail part of the pressure dissolved air tank body 2, a water outlet 9 is connected to the lower end of the pressure dissolved air tank body 2, the water inlet 8 and the water outlet 9 are positioned at the same end of the pressure dissolved air tank body 2, and a support 10 is connected to the bottom of the pressure dissolved air tank body 2, the support 10 is four groups of equidistance settings at least, water inlet 8 extends to the inside middle section of pressure dissolved air tank body 2, support 10 passes through the bolt fastening subaerial. The air dissolving tank is the most critical equipment in the water treatment of the air floatation method, the quality of the air dissolving effect directly influences the water quality of the air floatation water, and the air dissolving tank developed and produced adopts an injection type tank supplied with air by an air compressor and is provided with a liquid level meter, an electromagnetic valve, a safety valve and a pressure gauge. The air-water ratio realizes automatic control and regulation. The air dissolving effect is excellent.

The method is characterized in that: 1. the gas dissolving efficiency is up to 98%, and the release amount is about 90-99% of the theoretical saturated gas dissolving amount when the water temperature is close to the saturation value (at 30 ℃);

2. the water flow is large, and the load rate of the section of the tank can reach 5000m3/m2. d;

3. the water level meter is arranged, so that the operation and management are convenient, and the stable work of the releaser can be ensured;

4. the air compressor operates under the condition of not discharging undissolved air, so that the energy consumption of the air compressor can be saved, the continuous operation time is greatly shortened, and the service life of the air compressor is prolonged;

5. the water is uniformly distributed with small resistance, and the pressure drop is only one tenth of that of the water distribution of the spray head, so that the lift of a water pump is effectively utilized, the power consumption is saved, and the blockage of the spray head is avoided;

6. compared with the foreign advanced level, the gas dissolving efficiency is improved by 5-10%; the water passing density is improved by 1-5 times; the hydraulic retention time of the dissolved air tank is only 51s (originally 3-5 min), so that the volume of the tank is greatly reduced, and the manufacturing cost is reduced.

The working principle is as follows: the pressure dissolved air tank is a special device which pressurizes clean water to 0.30-0.40 MPa through a reflux pump, and simultaneously adds compressed air to dissolve air in water. The pressurized gas-dissolved water is connected to a releaser through a pipeline and a valve, then the pressure is suddenly reduced to normal pressure, the gas dissolved in the water is separated out from the water in the form of micro bubbles (the diameter of the bubbles is about 30-120 mu m), and suspended particles in the sewage are carried on the water surface and scraped out by a slag scraper, thereby realizing solid-liquid separation. The air floatation reflux ratio is generally 30-50%, and the air consumption is designed according to 40-60 ml/L.

The technological parameters are as follows: overcurrent density: 2500-5000 m3/m2.d

Height of the filler: 1000 to 2100mm (0.8 to 1.3m)

Liquid level height: 600 to 1300mm (from the bottom)

Pressure-bearing capacity: not less than 0.6MPa

Working pressure: 0.3 to 0.4MPa

The detailed introduction is as follows: the air flotation and pressure dissolved air tank needs to know 1, the pressure and reflux ratio of the dissolved air water are properly determined, the water purification effect is influenced when the pressure and reflux ratio are too small, the electric energy consumption is increased when the pressure is too high, unnecessary bubbles are increased due to large bubbles, the reflux ratio is too large, the electric energy is wasted, the equipment investment is increased, the load in a pool is increased, and the water flow is unstable to influence the water quality. 2. The types and models of the dissolved air releasers need to be reasonably selected and arranged, and when the TS type releaser is adopted, measures such as a filter screen and the like are required to be additionally arranged. 3. The pressure dissolved air tank should be as close as possible to the dissolved air releaser, and the diameter of the dissolved air water pipe connected with the releaser should be properly enlarged to reduce the pressure drop in the pipeline as much as possible. Avoid the bubble that causes along the way decompression to separate out and be big in advance. 4. Except for the conventional cleaning and inspection of the equipment before debugging, the releaser is detached, the pipeline and the dissolved air tank are cleaned for many times, and the releaser is mounted when the discharged water has no easily blocked particle impurities. 5. When debugging, firstly, a pressure gas dissolving system and a gas dissolving and releasing system are debugged, the gas dissolving water for debugging is clean water, and after the system operates normally, raw water is injected into the reaction tank. 6. The water inlet valve and the water outlet valve of the pressure dissolved air tank must be completely opened during operation, so that the phenomenon that air bubbles are released in advance and are large in the pipeline due to the interception of the water outlet valve is avoided. 7. When the pressure gas dissolving tank is in operation, the water level in the pressure gas dissolving tank must be properly controlled, the water level can not submerge the packing layer, but the water level is not too low so as to prevent a large amount of bubbles from being brought out in the outlet water, and the water level is generally kept above 60cm at the bottom of the tank. 8. The air compressor pressure need be greater than the pressure that dissolves the gas pitcher just can pour into the air into the jar into, for preventing that pressure water from pouring into air compressor backward, can install the check valve on the jar of admitting air. 9. The condition of the tank surface needs to be observed frequently, if the slag surface of the contact area is uneven and large bubbles are blown out locally, the releaser is likely to be blocked, and if the slag surface of the separation area is uneven and the tank surface often has the large bubbles blown out or broken, the adhesion of the bubbles and flocs is not good, and corresponding measures are taken. 10. In order to avoid influencing the quality of the discharged water as much as possible during slag scraping, the water in the tank is lifted during slag scraping, and the slag is periodically scraped according to the optimal scum accumulation thickness and scum water content.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides an air supporting dissolves gas system, includes that pressure dissolves gas pitcher body (2), its characterized in that: the pressure dissolves upper end one side of gas pitcher body (2) and is equipped with manhole (1), the upper end equidistance that gas pitcher body (2) was dissolved to pressure is equipped with a plurality of groups interface (3) of admitting air, the upper end that gas pitcher body (2) was dissolved to pressure still is connected with relief valve interface (4), the upper end that gas pitcher body (2) was dissolved to pressure still is connected with manometer interface (5), the side that gas pitcher body (2) was dissolved to pressure is connected with round sight glass (6), the side that gas pitcher body (2) was dissolved to pressure still is connected with level gauge (7), the end-to-end connection that gas pitcher body (2) was dissolved to pressure has water inlet (8), the lower extreme that gas pitcher body (2) was dissolved to pressure is connected with delivery port (9), the bottom that gas pitcher body (2) was dissolved to pressure is connected with support (10).

2. The air-flotation air dissolving system according to claim 1, wherein: the support (10) is fixed on the ground through bolts.

3. The air-flotation air dissolving system according to claim 1, wherein: the air inlet connector (3), the safety valve connector (4) and the pressure gauge connector (5) are sequentially arranged.

4. The air-flotation air dissolving system according to claim 1, wherein: the supports (10) are arranged in four groups at equal intervals.

5. The air-flotation air dissolving system according to claim 1, wherein: the water inlet (8) and the water outlet (9) are positioned at the same end of the pressure dissolved air tank body (2).

6. The air-flotation air dissolving system according to claim 1, wherein: the water inlet (8) extends to the inner middle section of the pressure dissolved air tank body (2).

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