An air separator for water treatment process

Abstract

The present invention provides an air separator for water treatment process, comprising a shell, a water inlet is arranged at the bottom of the shell, a baffle is arranged inside the shell, the baffle is located vertically above the water inlet, water distribution covers are arranged at both ends of the baffle, there is an angle between the plane where the water distribution cover is located and the axial direction of the shell, and a water inlet distribution area is formed between the water distribution cover and the water inlet; a collecting pipe is arranged above the baffle, the lower part of the collecting pipe is connected with the water outlet pipe, the water outlet pipe penetrates and extends out of the side wall of the shell, and the inside of the collecting pipe and the water outlet pipe is the water outlet collection area; the upper part of the water distribution cover in the shell, the collecting pipe and the outside of the water outlet pipe are filled with tower fillers, and the part filled with tower fillers is the energy dissipation area; the energy dissipation area is connected with the water distribution area through the water distribution hole on the water distribution cover. Raw water entering the separator passes through the water distribution area, the energy dissipation area, and the separation area in turn, which can separate the air in the raw water, and stabilize the liquid level and flow rate of the sedimentation tank and the clarification tank, so that the subsequent treatment is stable and reliable.

Description

Technical Field

[0001] The invention belongs to the technical field of industrial water treatment, and in particular relates to an air separator for water treatment process. Background Art

[0002] In the process of removing colloids and suspended solids from water in industrial water treatment, water temperature has a great influence on the treatment effect. Generally, raw water is heated in front of sedimentation tanks and clarification tanks after the temperature drops in winter. However, after the raw water is heated, the air dissolved in the raw water precipitates to form bubbles due to the decrease in solubility due to the temperature increase. After entering the sedimentation tank and clarification tank, the bubbles disturb the sludge layer and flocs, destroying the sedimentation effect, resulting in unqualified effluent, which seriously affects subsequent treatment. Many water treatment process sedimentation tanks and clarification tanks do not operate well in winter, and the output decreases. The fundamental reason is that the bubbles generated by the analysis of dissolved air in the rising water interfere with the operation of water treatment.

[0003] In addition, when the raw water is heated up, air is analyzed in the pipe to form large air pockets, which will cause air blockage and air blockage in the pipe, and the water flow at the pipe outlet will be unstable, which will cause greater disturbance to the water treatment sedimentation tank and clarification tank.

[0004] Some attempts to solve this problem have been made by increasing the area and volume of the water inlet areas of sedimentation tanks and clarification tanks, but good results have not been achieved. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the above-mentioned prior art and to provide an air separator for water treatment process.

[0006] An air separator for water treatment process comprises a shell, a water inlet is arranged at the bottom of the shell, a baffle is arranged inside the shell, the baffle is located vertically above the water inlet, water distribution covers are arranged at both ends of the baffle, an angle is formed between the plane where the water distribution cover is located and the axial direction of the shell, and a water distribution area is formed between the water distribution cover and the water inlet; a collecting pipe is arranged above the baffle, the lower part of the collecting pipe is connected with the water outlet pipe, the water outlet pipe penetrates and extends out of the side wall of the shell, and the inside of the collecting pipe and the water outlet pipe is the water outlet collecting area; the upper part of the water distribution cover in the shell, the collecting pipe and the outside of the water outlet pipe are filled with tower fillers, and the part filled with the tower fillers is an energy dissipation area; the energy dissipation area is connected with the water distribution area through the water distribution holes on the water distribution cover.

[0007] The diameter of the tower packing is larger than the diameter of the water distribution hole on the water distribution cover.

[0008] The collecting pipe is arranged vertically, and the water outlet pipe is arranged horizontally.

[0009] The height of the collecting pipe orifice is higher than the height of the tower filler, and the interior of the shell higher than the tower filler and lower than the collecting pipe orifice is divided into a separation zone.

[0010] A water collection hole is arranged on the wall of the collecting tube at the separation zone position.

[0011] The water inlet diameter is less than or equal to the water outlet diameter; the collecting pipe diameter is 1.5 to 2 times the water inlet diameter; and the cross-sectional area of ​​the upper part of the shell is 20 to 30 times the cross-sectional area of ​​the water inlet.

[0012] The total area of ​​the water distribution holes on the water distribution cover is 2.5 to 3.5 times the cross-sectional area of ​​the water inlet.

[0013] The total area of ​​the water collection holes on the collecting pipe is 2.5 to 3.5 times the cross-sectional area of ​​the water inlet.

[0014] The tower packing is Raschig rings.

[0015] The angle between the plane where the water distribution cover is located and the axial direction of the shell is 30°~60°.

[0016] The beneficial effect of the present invention is that the present invention provides an air separator for water treatment process for industrial water treatment process. The raw water entering the separator passes through the water distribution area, the energy dissipation area, and the separation area in sequence, which can separate the air in the raw water and stabilize the liquid level and flow rate of the sedimentation tank and the clarification tank, so that the subsequent treatment is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention.

[0018] Among them, 1 is the shell, 2 is the water inlet, 3 is the water distribution cover, 30 is the water distribution hole, 31 is the baffle, 4 is the water outlet pipe, 5 is the collecting pipe, 50 is the water collecting hole, 6 is the water distribution area, 7 is the energy dissipation area, 8 is the separation area, 9 is the water outlet collection area, and 10 is the tower filler. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] like Figure 1 As shown, an air separator for water treatment process includes a shell 1, characterized in that: a water inlet 2 is arranged at the bottom of the shell 1, a baffle 31 is arranged in the shell 1, the baffle 31 is located vertically above the water inlet 2, water distribution covers 3 are arranged at both ends of the baffle 31, there is an angle between the plane where the water distribution cover 3 is located and the axial direction of the shell 1, and a water distribution area 6 is formed between the water distribution cover 3 and the water inlet 2; a collecting pipe 5 is arranged above the baffle 31, the lower part of the collecting pipe 5 is connected with the water outlet pipe 4, the water outlet pipe 4 penetrates and extends out of the side wall of the shell 1, and the inside of the collecting pipe 5 and the water outlet pipe 4 is the water outlet collecting area 9; the upper part of the water distribution cover 3 in the shell 1, the collecting pipe 5 and the outside of the water outlet pipe 4 are filled with tower fillers 10, and the part filled with the tower fillers 10 is the energy dissipation area 7; the energy dissipation area 7 is connected with the water distribution area 6 through the water distribution hole 30 on the water distribution cover 3.

[0021] The diameter of the tower filler 10 is larger than the diameter of the water distribution hole on the water distribution cover to prevent the tower filler from falling into the water distribution area 6.

[0022] The collecting pipe 5 is arranged vertically, and the water outlet pipe 4 is arranged horizontally.

[0023] The height of the mouth of the collecting pipe 5 is higher than the height of the tower filler 10, and the interior of the shell 1 above the tower filler 10 and below the mouth of the collecting pipe 5 is divided into a separation zone 8. After the gas is fully separated in the separation zone 8, the water flow overflows from the mouth of the collecting pipe 5 to the water outlet collecting zone 9.

[0024] A water collecting hole 50 is arranged on the wall of the collecting pipe 5 at the position of the separation zone 8. The water collecting hole 50 can adjust the height of the liquid level in the separation zone 8 so that the liquid level in the separation zone 8 is slightly lower than the height of the pipe mouth of the collecting pipe 5, ensuring that the water flow does not rotate when entering the water outlet collecting zone 9, and preventing air from being entrained into the water flow again due to the rotation of the water flow.

[0025] The diameter of the water inlet 2 is less than or equal to the diameter of the water outlet pipe 4; the diameter of the collecting pipe 5 is 1.5-2 times the diameter of the water inlet 2; the cross-sectional area of ​​the upper part of the shell is 20-30 times the cross-sectional area of ​​the water inlet. The water inlet pipe is a pressure pipe with a high flow rate, the water outlet pipe is gravity self-flow, and the collecting pipe 5 collects water by self-flow. Therefore, the diameter of the water inlet 2 is less than or equal to the diameter of the water outlet pipe 4, and the diameter of the collecting pipe 5 is 1.5-2 times the diameter of the water inlet, which can ensure the balance of water inlet and outlet, and will not cause the liquid level in the separation zone 8 to rise too high, effectively preventing the equipment from overflowing. The cross-sectional area of ​​the upper part of the shell 1 is 20-30 times the cross-sectional area of ​​the water inlet, that is, the cross-sectional area of ​​the energy dissipation zone in the shell 1 is 20-30 times the cross-sectional area of ​​the water inlet. When the cross-sectional area of ​​the upper part of the shell 1 is more than 20 times the cross-sectional area of ​​the water inlet, the water pressure can be suddenly released and the water flow rate can drop to nearly zero. The larger the cross-sectional area ratio, the better the effect, but the effect of increasing by more than 30 times is not obvious.

[0026] The total area of ​​the water distribution holes 30 on the water distribution cover 3 is 2.5-3.5 times the area of ​​the water inlet 2. The total area of ​​the water distribution holes 30 is greater than 2.5 times the cross-sectional area of ​​the water inlet, which can ensure that the water distribution is not blocked and the water distribution is uniform. The existence of the water distribution holes can also prevent the tower filler 10 in the energy dissipation area 7 from flowing back to the valve and pump connected to the water inlet 2 during shutdown, causing blockage and equipment damage.

[0027] The total area of ​​the water collection holes 50 on the collection pipe 5 is 2.5-3.5 times the area of ​​the water inlet 2. This ensures that the water and air are collected in the collection pipe 5 in the shortest time and path after separation, effectively lowers the liquid level in the separation zone 8, reduces the time and path of gas escape, and improves separation efficiency.

[0028] The tower packing 10 is a Raschig ring with a diameter of 40 mm, a single water distribution hole 30 with a diameter of 20-25 mm, and a single water collection hole 50 with a diameter of 20-25 mm. The diameter of the Raschig ring is larger than the diameters of the water distribution hole 30 and the water collection hole 50, so the Raschig ring will not fall from the water distribution hole 30 and the water collection hole 50.

[0029] The angle between the plane where the water distribution cover 3 is located and the axial direction of the shell 1 is 30°~60°. The water flow enters the energy dissipation zone 7 at a certain angle, and the water distribution cover 3 can dissipate the energy of the water flow in advance, so that the effect of gas-water separation is better. The water distribution cover 3 can cover the water inlet 2, and the water entering from the water inlet 2 can only rise to the upper part of the shell 1 through the water distribution holes 30 on the water distribution cover 3. The water distribution holes 30 are evenly distributed on the water distribution cover 3, and the water can be evenly distributed to rise to the shell 1; therefore, a water distribution zone 6 is formed between the water distribution cover 3 and the water inlet 2; the water distribution cover 3 and the baffle 31 are integrally arranged and fixed in the shell 1, and the baffle 31 blocks the water flow from entering the energy dissipation zone 7 vertically upward; the water distribution cover 3 and the water distribution holes 30 are of any shape.

[0030] The water flows evenly through the water distribution cover 3 to the energy dissipation area 7. The irregular rotation of the Raschig rings filled in the energy dissipation area 7 can reduce the potential energy of the water and reduce the impact force. The possible air blockage and air plugging phenomenon in the pipeline and the pressure caused by it are also released here, which plays a role in stabilizing pressure and flow. Here, the water flow rate suddenly decreases due to the sudden expansion of the flow area, and the water pressure also suddenly drops to zero (relatively). The supersaturated dissolved air in the water is analyzed by sudden decompression to form small bubbles that are separated from the water.

[0031] The water flows through the energy dissipation zone 7 and rises to the separation zone 8. In the separation zone 8, small bubbles generate large bubbles that escape from the water surface and diffuse into the air, leaving the water body and going out from the upper part of the shell 1. The water flow in the separation zone 8 enters the water outlet collection zone 9 through the water collection hole 50 connected to the water outlet collection zone 9, or enters the water outlet collection zone 9 from the pipe mouth of the collection pipe 5 through the overflow effect. The water in the water outlet collection zone 9 is discharged from the separator through the water outlet pipe 4.

[0032] The above is a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, the present invention is not limited to the above embodiments. Several changes and improvements can be made without departing from the overall concept of the present invention, which should also be regarded as the scope of protection of the present invention.

Claims

1. An air separator for a water treatment process, comprising a housing (1), characterized in that: A water inlet (2) is arranged at the bottom of the shell (1), a baffle (31) is arranged inside the shell (1), the baffle (31) is located vertically above the water inlet (2), water distribution covers (3) are arranged at both ends of the baffle (31), an angle is formed between the plane where the water distribution cover (3) is located and the axial direction of the shell, the angle between the plane where the water distribution cover (3) is located and the axial direction of the shell (1) is 30° to 60°, and a water distribution area (6) is formed between the water distribution cover (3) and the water inlet (2); a collecting pipe (5) is arranged above the baffle (31), and the collecting pipe (5) ) is connected to the outlet pipe (4), the outlet pipe (4) extends through the side wall of the shell (1), and the inside of the collecting pipe (5) and the outlet pipe (4) is a water outlet collection area (9); the upper part of the water distribution cover (3) in the shell (1), the outside of the collecting pipe (5) and the outlet pipe (4) are filled with tower fillers (10), the diameter of the tower fillers (10) is larger than the diameter of the water distribution holes on the water distribution cover, and the part filled with the tower fillers (10) is an energy dissipation area (7); the energy dissipation area (7) is connected to the water distribution area (6) through the water distribution holes (30) on the water distribution cover (3).

2. The air separator for water treatment process according to claim 1, characterized in that: The collecting pipe (5) is arranged vertically, and the water outlet pipe (4) is arranged horizontally.

3. The air separator for water treatment process according to claim 2, characterized in that: The height of the mouth of the collecting tube (5) is higher than the height of the tower filler (10), and the interior of the shell (1) above the tower filler (10) and below the mouth of the collecting tube (5) is divided into a separation zone (8).

4. The air separator for water treatment process according to claim 3, characterized in that: A water collection hole (50) is provided on the wall of the collection pipe (5) at the position of the separation zone (8).

5. The air separator for water treatment process according to any one of claims 1 to 4, characterized in that: The diameter of the water inlet (2) is less than or equal to the diameter of the water outlet pipe (4); the diameter of the collecting pipe (5) is 1.5 to 2 times the diameter of the water inlet (2); and the cross-sectional area of ​​the upper part of the shell (1) is 20 to 30 times the cross-sectional area of ​​the water inlet (2).

6. The air separator for water treatment process according to claim 5, characterized in that: The total area of ​​the water distribution holes (30) on the water distribution cover (3) is 2.5 to 3.5 times the cross-sectional area of ​​the water inlet (2).

7. The air separator for water treatment process according to claim 6, characterized in that: The total area of ​​the water collection holes (50) on the collection pipe (5) is 2.5 to 3.5 times the cross-sectional area of ​​the water inlet.

8. The air separator for water treatment process according to claim 1, characterized in that: The tower packing (10) is Raschig rings.

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