CN209583710U - Industrial combined reverse osmosis device - Google Patents

Abstract

The utility model discloses an industrial combined reverse osmosis device, which belongs to the technical field of water treatment equipment and comprises a two-stage reverse osmosis structure and a water storage tank connected with the two-stage reverse osmosis structure; it is characterized in that the two-stage reverse osmosis structure includes High pressure pump Ⅰ, reverse osmosis structure Ⅰ of hollow fiber reverse osmosis module, high pressure pump Ⅱ and reverse osmosis structure II of spiral wound reverse osmosis module; The upper end is provided with a guide pipe and an exhaust pipe, the upper end of the guide pipe extends upwards to the upper part of the upper layer, and the upper end of the exhaust pipe extends upwards to set the top of the water storage tank and leads to the atmosphere and communicates with the upper layer; the utility model is beneficial The effect is: the use of hollow fiber reverse osmosis components for preliminary filtration effectively avoids the problem of clogging of spirally wound reverse osmosis components; II's impact.

Description

Industrial combined reverse osmosis device

Technical field:

The utility model belongs to the technical field of water treatment equipment, in particular to an industrial combined reverse osmosis device.

Background technique:

Reverse osmosis uses the physical phenomenon of osmosis to achieve separation. The principle is to separate two kinds of water with different concentrations with a semi-permeable membrane, and the water on the side with a lower salt concentration will permeate through the membrane. To the side with a high salt concentration, but the salt it contains does not penetrate. In this way, cut and fuse step by step until the salt concentration on both sides is equal. The natural osmosis process is long. In order to speed up this fusion process, a pressure can be added on the side of the water with high salt content to stop the permeation, which is the osmotic pressure of the membrane. If the pressure is increased, the water can reverse osmosis, and the salt remains, which forms the desalination principle of reverse osmosis. That is, in saline water such as source water, a pressure greater than the natural osmotic pressure is applied to make the osmosis proceed in the opposite direction, and the water molecules in the raw water are pressed to the other side of the membrane to become clean water, thereby achieving the removal of water. Salt purpose.

Since the second half of the 1980s, reverse osmosis has been gradually promoted in the pharmaceutical industry. It uses semi-permeable reverse osmosis membranes, and with the help of external pressure as power, the water molecules in the raw water are forced to pass through the water. The membrane through which molecules are selectively permeable achieves the purpose of desalination and purifies water. This method is easy to operate, has a large amount of water output and no pollution, and has been widely used in recent years.

However, in the actual use process, there are many problems in the basis of reverse osmosis devices, such as the national journal "Problems and Solutions in the Operation of Reverse Osmosis Systems", which describes commonly used reverse osmosis devices, and lists common problems, such as Contamination problem;

Moreover, the air bubbles in the treated water also have an impact on the treatment effect. A large amount of gas in the pipeline network of the treated water dissolves in the treated water. At this time, it must be pressurized by the water pump to enter the reverse osmosis device. The water pump pressurizes the water body at the same time , and increases the pressure on the dissolved gas in the water body, making the gas molecules smaller and further increasing the solubility.

Since there is always pressure inside the system, the gas molecules cannot be released. When this part of water flows out of the membrane system, the pressure on the gas molecules suddenly disappears, and then they expand into bubbles that we can observe with the naked eye. When the amount is large, there will be a large number Tiny air bubbles gushed out, causing the water body to appear milky white, and then gradually disappeared, and this would produce false pressure. Although the input pressure can meet the requirements, especially with multi-stage reverse osmosis devices, due to the generation and disappearance of air bubbles The internal pressure did not reach the required pressure.

Utility model content:

In order to solve the above problems and overcome the deficiencies of the prior art, the utility model provides an industrial combined reverse osmosis device;

The first technical problem to be solved is: the combination of combined reverse osmosis device is unreasonable, the operation cost is high and the service life is short;

The second technical problem to be solved is: the impact of the bubbles in the water on the life of the equipment and for the multi-stage reverse osmosis device, the false pressure phenomenon is caused by the generation and disappearance of the bubbles, that is, the internal pressure does not meet the requirements. pressure.

The specific technical solution of the utility model for solving the above-mentioned technical problems is: the industrial combined reverse osmosis device includes a two-stage reverse osmosis structure and a water storage tank connected to the two-stage reverse osmosis structure; it is characterized in that: the two-stage reverse osmosis The reverse osmosis structure includes high pressure pump Ⅰ, reverse osmosis structure Ⅰ, high pressure pump Ⅱ and reverse osmosis structure Ⅱ;

The water storage tank includes an upper layer and a lower layer, the upper layer and the lower layer are separated by a middle partition, and a guide pipe and an exhaust pipe are pierced on the middle partition plate, and the lower port of the guide pipe communicates with the lower layer, and the upper end is upward Extending to the upper part of the upper layer, the lower port of the exhaust pipe communicates with the lower layer, the upper end extends upwards to the top of the water storage tank and leads to the atmosphere, the upper end of the exhaust pipe communicates with the upper layer; the top port of the exhaust pipe is set With dust cap;

The top of the water storage tank is provided with a water inlet and a feeding port, and the water inlet, the feeding port, a draft pipe and an exhaust pipe are arranged on both sides of the water storage tank.

Further, the reverse osmosis structure I is a hollow fiber reverse osmosis module.

Further, the reverse osmosis structure II is a hollow fiber reverse osmosis module or a spiral wound reverse osmosis module.

Further, the reverse osmosis structure I and the reverse osmosis structure II both include a heavy water outlet and a light water outlet; the light water outlet of the reverse osmosis structure I is connected to the water storage tank, and the water storage tank is connected to the high-pressure pump II through a pipeline, and the high-pressure pump The heavy water outlet of II is connected with the water inlet of reverse osmosis structure I through pipelines.

Further, the feeding port is connected with a high-level tank containing lye.

The beneficial effects of the utility model are:

Because the spiral wound reverse osmosis module is easy to clog, but the price is low, and the hollow fiber reverse osmosis module is not easy to clog, but the price is high, the reverse osmosis structure I is a hollow fiber reverse osmosis module, and the reverse osmosis structure II is a spiral coil The winding reverse osmosis module reduces the capital investment of the whole device, and the hollow fiber reverse osmosis module is used for preliminary filtration, which effectively avoids the clogging of the spiral wound reverse osmosis module;

The water storage tank provided by the device includes an upper layer and a lower layer, a diversion pipe and an exhaust pipe are pierced on the middle partition, and a water inlet and a feeding port are arranged on the top of the water storage tank. The pipe and the exhaust pipe are arranged on both sides of the water storage tank, so that the air bubbles in the treated water are effectively released, and the influence of the air bubbles on the reverse osmosis structure II is avoided.

Description of drawings:

Accompanying drawing 1 is the utility model structural representation; In the accompanying drawing:

1. Reverse osmosis structure Ⅱ; 2. High pressure pump Ⅰ; 3. Reverse osmosis structure Ⅰ; 4. Water storage tank; 5. High pressure pump Ⅱ; 11. Lower layer; Tube; 15. Dust cap; 16. Filling port.

Detailed ways:

In order to make the purpose, technical solution and advantages of the utility model more clear, it will now be more fully described with reference to accompanying drawing 1 . In describing the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", "rear", "lower left", "upper right", "outer" etc. The orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific Azimuth configuration and operation, therefore, cannot be interpreted as limiting the protection scope of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

Specific implementation of the utility model: the industrial combined reverse osmosis device includes a two-stage reverse osmosis structure and a water storage tank 4 connected to the two-stage reverse osmosis structure; it is characterized in that: the two-stage reverse osmosis structure includes High-pressure pump I2, reverse osmosis structure I3, high-pressure pump II5 and reverse osmosis structure II1; reverse osmosis structure I3 is a hollow fiber reverse osmosis module, and reverse osmosis structure II1 is a spiral-wound reverse osmosis module;

The water storage tank 4 includes an upper layer 13 and a lower layer 11, the upper layer 13 and the lower layer 11 are separated by a middle partition, and the middle partition is pierced with a guide pipe 12 and an exhaust pipe 14, and the guide pipe 12 The lower port communicates with the lower layer 11, and the upper end extends upwards to the top of the upper layer 13. The lower port of the exhaust pipe 14 communicates with the lower layer 11, and the upper end extends upwards to the top of the water storage tank 4 and leads to the atmosphere. The upper end of 14 communicates with the upper layer 13; the top port of the exhaust pipe 14 is provided with a dustproof cap 15;

The top of the water storage tank 4 is provided with a water inlet and a feeding port 16, and the water inlet and the feeding port 16, the draft pipe 12 and the exhaust pipe 14 are arranged on both sides of the water storage tank 4,

The reverse osmosis structure Ⅰ3 and the reverse osmosis structure Ⅱ1 both include heavy water outlet and light water outlet; the light water outlet of the reverse osmosis structure Ⅰ3 is connected with the water storage tank 4, and the water storage tank 4 is connected with the high-pressure pump Ⅱ5 through the pipeline, and the heavy water of the high-pressure pump Ⅱ5 The outlet is connected to the water inlet of the reverse osmosis structure I3 through a pipeline; the feeding port 16 is connected to the high-level tank containing lye.

It should be noted that the utility model is an industrial combined reverse osmosis device. When working specifically,

1. Turn on the high-pressure pump Ⅰ2, pressurize the pretreated water through the high-pressure pump Ⅰ2, and pump it into the reverse osmosis structure Ⅰ3. The reverse osmosis structure Ⅰ3 is a hollow fiber reverse osmosis module. After filtering, heavy water and light water are obtained. The heavy water passes through The heavy water is discharged from the outlet, and the light water is discharged from the light water outlet and introduced into the water inlet through the pipeline;

2. Since the pretreated water in step 1 contains air, and under the pressure of the high-pressure pump I2, a small amount of air is also dissolved in the water. When the water pump pressurizes the water body, it increases the pressure of the dissolved gas in the water body. , so that the gas molecules become smaller and the solubility is further increased; at this time, the treated water containing air enters the upper layer 13, and the bubbles gather and become larger due to the reduction of air pressure and are released, and are discharged to the atmosphere through the opening of the exhaust pipe 14;

3. The treated water enters the lower layer 11 through the guide pipe 12 for further release, and the air is discharged to the atmosphere through the opening of the exhaust pipe 14; the water inlet and the feeding port 16, the guide pipe 12 and the exhaust pipe 14 are arranged in the water storage tank 4 on both sides, extending the entire process, which is conducive to the release of air;

4. The first-stage treated water that releases air enters the reverse osmosis structure II1 through the high-pressure pump II5, the light water filtered through the second time is discharged through the light water outlet, and the heavy water is discharged to the reverse osmosis structure I3 through the heavy water outlet as the source water for primary treatment ;

5. When the inside of the water storage tank 4 is contaminated with bacteria, alkali can be added through the feeding port 16 connected to the high-level tank equipped with lye for disinfection and cleaning.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (5)

1. An industrial combined reverse osmosis device, including a two-stage reverse osmosis structure and a water storage tank (4) connected to the two-stage reverse osmosis structure; it is characterized in that: the two-stage reverse osmosis structure includes a high-pressure pump I (2), Reverse osmosis structure I (3), high pressure pump II (5) and reverse osmosis structure II (1); The water storage tank (4) includes an upper layer (13) and a lower layer (11), the upper layer (13) and the lower layer (11) are separated by a middle partition, and a guide pipe (12) is pierced on the middle partition And the exhaust pipe (14), the lower port of the guide pipe (12) communicates with the lower layer (11), the upper end extends upwards to the upper part of the upper layer (13), the lower port of the exhaust pipe (14) communicates with the lower layer ( 11) connected, the upper end extends upwards to set the top of the water storage tank (4) and leads to the atmosphere, the upper end of the exhaust pipe (14) communicates with the upper layer (13); the top port of the exhaust pipe (14) is provided with an anti- dust cap (15); The top of the water storage tank (4) is provided with a water inlet and a feeding port (16), and the water inlet and feeding port (16), the guide pipe (12) and the exhaust pipe (14) are arranged in the water storage tank (4) both sides. 2. The combined industrial reverse osmosis device according to claim 1, characterized in that said reverse osmosis structure I (3) is a hollow fiber reverse osmosis module. 3. The combined industrial reverse osmosis device according to claim 1, characterized in that the reverse osmosis structure II (1) is a hollow fiber reverse osmosis module or a spiral wound reverse osmosis module. 4. The industrial combined reverse osmosis device according to claim 1, characterized in that the reverse osmosis structure I (3) and reverse osmosis structure II (1) both include a heavy water outlet and a light water outlet; the reverse osmosis structure I The light water outlet of (3) is connected to the water storage tank (4), the water storage tank (4) is connected to the high-pressure pump II (5) through the pipeline, and the heavy water outlet of the high-pressure pump II (5) is connected to the reverse osmosis structure I ( 3) connected to the water inlet. 5. The industrial combined reverse osmosis device according to claim 1, characterized in that the feeding port (16) is connected to a high-level tank filled with lye.