阅读说明：本技术 一种分级压力水溶解氧气的装置及实现方法 (Device for dissolving oxygen by using graded pressure water and implementation method ) 是由 岳金承睿 于 2020-07-12 设计创作，主要内容包括：本发明涉及一种分级压力水溶解氧气的装置及实现方法,包括排空口、上封头、下封头、上封头连接法兰、气液接触筛板、设备筒体、气体分布板、中压溶气水出口、高压水进口、填料、填料支撑板、下封头、排水口、氧气进口、气液分离装置、气体压力释放嘴、中压水进口,其中气液分离装置由圆周气仓、中心气仓、气体收集管组成,技术效果是,运行稳定可靠,整体提高氧的利用效率,大大降低氧气的损失,同时在高压下氧溶解度高,氧气的利用效率可达到95%以上,整体提高了氧的溶解速度,设备可分解小型化,维修运行管理方便,节能,可实现自动控制。(The invention relates to a device for dissolving oxygen by graded pressure water and an implementation method thereof, comprising an evacuation port, an upper seal head, a lower seal head, an upper seal head connecting flange, a gas-liquid contact sieve plate, an equipment cylinder, a gas distribution plate, a medium-pressure dissolved gas water outlet, a high-pressure water inlet, a filler supporting plate, a lower seal head, a water outlet, an oxygen inlet, a gas-liquid separation device, a gas pressure release nozzle and a medium-pressure water inlet, wherein the gas-liquid separation device consists of a circumferential gas cabin, a central gas cabin and a gas collecting pipe.)

1. The utility model provides a device of hierarchical pressure water dissolution oxygen, including evacuation mouth (1), upper cover (2), low head (11), upper cover flange (3), gas-liquid contact sieve (4), equipment barrel (5), gas distribution board (6), medium pressure dissolved gas water export (7), high pressure water inlet (8), filler (9), filler backup pad (10), low head (11), outlet (12), oxygen import (13), gas-liquid separation device (14), gas pressure release mouth (15), medium pressure water import (16), wherein gas-liquid separation device (14) comprise circumference gas storehouse (14-1), center gas storehouse (14-2), gas collecting pipe (14-3), its characterized in that: an upper seal head (2) is welded and fixed on the upper end surface of an equipment cylinder body (5) through an upper seal head connecting flange (3), a drain opening (1) is fixed at the top end of the upper seal head (2), a lower seal head (11) is fixed on the lower end surface of the equipment cylinder body (5), a drain hole (12) is fixed at the bottom end of the lower seal head (11), a medium-pressure water inlet (16) is fixed at the upper end of the outer side surface of the equipment cylinder body (5), a first gas-liquid contact sieve plate (4-1), a second gas-liquid contact sieve plate (4-2), a third gas-liquid contact sieve plate (4-3), a fourth gas-liquid contact sieve plate (4-4) are sequentially and uniformly fixed on the inner wall below the medium-pressure water inlet (16) in the equipment cylinder body (5) from top to bottom, a gas distribution plate (6) and a gas-liquid separation device (14) are sequentially fixed on, the gas pressure release nozzle (15) is fixed on the upper end face of a central gas bin (14-2) of the gas-liquid separation device (14), a high-pressure water inlet (8) is fixed on the outer side face of the equipment barrel (5) below the gas-liquid separation device (14), the packing support plate (10) is fixed on the lower end portion of the inner wall of the equipment barrel (5), the packing (9) is arranged on the packing support plate (10), the height of the packing (9) is lower than that of the high-pressure water inlet (8), the oxygen inlet (13) is fixed on the outer wall of the equipment barrel (5) below the packing support plate (10), the lower end enclosure (11) is fixed on the bottom end face of the equipment barrel (5), and the water outlet (12.

2. The apparatus of claim 1 for staged pressurized water dissolution of oxygen, wherein: the parts are all fixedly connected by welding, the pressure resistance of the whole device is 10-60kg/cm2, and the temperature resistance is 0-45 ℃.

3. The apparatus of claim 1 for staged pressurized water dissolution of oxygen, wherein: the device barrel (5) interior gas distribution plate (6) above part be the water soluble oxygen district of middling pressure, below part be the water soluble oxygen district of high pressure, the resolvable one becomes, the water soluble oxygen district of high pressure is two independent devices that water soluble oxygen device of high pressure and water soluble oxygen district are water soluble oxygen device of middling pressure, adopt pipeline, valve to link together.

4. The apparatus of claim 1 for staged pressurized water dissolution of oxygen, wherein: the packing (9) can be any gas-liquid contact packing.

5. The apparatus of claim 1 for staged pressurized water dissolution of oxygen, wherein: the gas distribution plate (6) is a convex circular cover plate, and micro through holes are uniformly distributed on the plate.

6. The method for realizing the device for dissolving oxygen by using graded pressure water as claimed in claim 1 is characterized in that: the realization method is that air is used as the air source of oxygen, oxygen is prepared by an air separation device, or canned industrial oxygen is directly used as the air source of oxygen, the pressure is reduced to 4-15kg/cm2 by a pressure reducing device and then used, 2 oxygen-dissolving water with the pressure of 4-15kg/cm is filled into a high-pressure water-dissolving oxygen area from a high-pressure water inlet (8) of an equipment cylinder body (5), 4-15kg/cm2 high-pressure oxygen enters the equipment cylinder body (5) from an oxygen inlet (13), a filler (9) is placed in a filler placing area to be fully contacted with water, the oxygen is dissolved in the water, the mass ratio (g/kg) of the high-pressure oxygen-enriched water to the water after the oxygen is dissolved is 0.4-0.6:1, the high-pressure oxygen-enriched water is discharged through a water outlet (12), oxygen which is not dissolved in the high-pressure area floats upwards and enters a central air cabin, gas-liquid separation is carried out in the device, oxygen enters a gas collecting pipe (14-3), the pressure of the oxygen is regulated and controlled to be 2-6kg/cm2 by controlling the pressure on a gas pressure releasing nozzle (15), the oxygen enters a medium pressure area after being released, a gas distribution plate (6) is a device for uniformly distributing the gas, the oxygen which is not dissolved in the high pressure area is uniformly distributed by the gas distribution plate (6), simultaneously, the medium pressure water inlet (16) of an equipment cylinder (5) is filled with dissolved oxygen water with the pressure of 2-6kg/cm2, the dissolved oxygen water and the oxygen which is not dissolved in the high pressure water soluble oxygen area are contacted and dissolved in the water on a gas-liquid contact sieve plate (4), the formed medium pressure dissolved oxygen water is discharged from a medium pressure water soluble water outlet (7), and is pressurized to 4-15kg/cm2 by a pressurizing pump and then enters the high pressure water soluble oxygen area from a high pressure water inlet (8), and (3) carrying out high-pressure oxygen dissolving again when the liquid flow of the medium-pressure water-soluble oxygen region is equal to or greater than that of the high-pressure region, and storing the excess water of the medium-pressure water-soluble oxygen region in a circulating manner of the medium-pressure water-soluble oxygen region.

Technical Field

The invention relates to a device for dissolving oxygen in water under pressure, in particular to a device for dissolving oxygen in water under graded pressure and an implementation method.

Background

The water for treating industrial sewage and biological sewage and culturing needs to be filled with a large amount of oxygen, and the traditional method for improving the oxygen content in water is to dissolve oxygen in air into water by adopting an air blower or a machine. Because of the influence of nitrogen in the air, the adopted dissolving equipment has lower efficiency. And therefore the utilization rate of oxygen is low. Causing severe energy consumption. Therefore, energy consumption is reduced by a high-efficiency dissolved oxygen device.

Disclosure of Invention

In view of the needs in the prior art, the invention provides a device for dissolving oxygen by graded pressure water and an implementation method thereof. The specific technical scheme is that a device of oxygen is dissolved to hierarchical pressure water, including evacuation mouth, upper cover, low head, upper cover flange, gas-liquid contact sieve, equipment barrel, gas distribution board, middling pressure dissolved gas water export, high pressure water inlet, filler backup pad, low head, outlet, oxygen import, gas-liquid separation device, gas pressure release mouth, middling pressure water import, wherein gas-liquid separation device comprises circumference gas storehouse, central gas storehouse, gas collecting pipe, its characterized in that: the upper end enclosure is welded and fixed on the upper end surface of the equipment cylinder body through an upper end enclosure connecting flange, the emptying port is fixed at the top end of the upper end enclosure, the lower end enclosure is fixed on the lower end surface of the equipment cylinder body, the emptying port is fixed at the bottom end of the lower end enclosure, the medium-pressure water inlet is fixed at the upper end of the outer side surface of the equipment cylinder body, the first gas-liquid contact sieve plate, the second gas-liquid contact sieve plate, the third gas-liquid contact sieve plate and the fourth gas-liquid contact sieve plate are sequentially and uniformly fixed on the inner wall below the medium-pressure water inlet of the equipment cylinder body from top to bottom, the gas distribution plate and the gas-liquid separation device are sequentially fixed on the inner wall below the fourth gas-liquid contact sieve plate in the equipment cylinder body from top to bottom, the gas pressure release nozzle is fixed, the height of the filler is lower than that of the high-pressure water inlet, the oxygen inlet is fixed on the outer wall of the equipment cylinder below the filler supporting plate, the lower end enclosure is fixed on the bottom end face of the equipment cylinder, and the water outlet is fixed on the bottom end face of the lower end enclosure;

the fixed connection among the components is all welded and fixed, and the pressure resistance of the whole device is 10-60kg/cm²And the temperature is 0-45 ℃.

The gas distribution plate in the equipment barrel uses the upper part to be the water soluble oxygen region of middling pressure, following part is the water soluble oxygen region of high pressure, the resolvable one becomes, the water soluble oxygen region of high pressure is two independent devices that water soluble oxygen device of high pressure and water soluble oxygen region of middling pressure are the water soluble oxygen device of middling pressure, adopts pipeline, valve to link together.

The filler can be any gas-liquid contact filler.

The gas distribution plate is a convex circular cover plate, and micro through holes are uniformly distributed on the plate.

The realization method comprises preparing oxygen by air separation device with air as oxygen source, or directly preparing oxygen by canned industrial oxygen as oxygen source, and reducing pressure to 4-15kg/cm by pressure reducing device²Then used, the high-pressure water inlet of the equipment cylinder is filled with 4-15kg/cm of pressure water to the high-pressure water-soluble oxygen area²Dissolved oxygen water, 4-15kg/cm²The high-pressure oxygen enters the equipment cylinder from the oxygen inlet, the filler is placed in the filler placing area and fully contacts with water, the oxygen is dissolved in the water, the mass ratio (g/kg) of high-pressure oxygen-enriched water to water after the oxygen is dissolved is 0.4-0.6:1, the high-pressure oxygen-enriched water is discharged through the water outlet, the oxygen which is not dissolved in the high-pressure area floats upwards and enters the central gas bin of the gas-liquid separation device, gas-liquid separation is carried out in the central gas bin, the oxygen enters the gas collecting pipe, and the pressure of the oxygen is adjusted and controlled to be 2-6kg/cm through controlling the pressure on the gas pressure releasing²After being released, the oxygen enters the middle pressure area, the gas distribution plate is a device for uniformly distributing the gas, the oxygen which is not dissolved in the high pressure area is uniformly distributed through the gas distribution plate, and simultaneously, the middle pressure water inlet of the equipment cylinder body is filled with the water with the pressure of 2-6kg/cm to the middle pressure water-soluble oxygen area²The water to be dissolved with oxygen not dissolved in the high-pressure water-soluble oxygen region is contacted with the oxygen on the gas-liquid contact sieve plate and dissolved in water, and the formed medium-pressure dissolved oxygen water is discharged from the medium-pressure dissolved oxygen water outlet and is pressurized to 4-15kg/cm by a pressurizing pump²Then the water enters a high-pressure water-soluble oxygen area from a high-pressure water inlet, the liquid flow of the medium-pressure water-soluble oxygen area is equal to or greater than that of the high-pressure area, high-pressure oxygen dissolving is carried out again, and the excess water of the medium-pressure water-soluble oxygen area is stored in a circulating mode of the medium-pressure water-soluble oxygen area.

The invention has the advantages of stable and reliable operation, integrally improved utilization efficiency of oxygen, greatly reduced loss of oxygen, high oxygen solubility under high pressure, oxygen utilization efficiency of more than 95 percent, integrally improved oxygen dissolution speed, decomposable and miniaturized equipment, convenient maintenance, operation and management, energy conservation and automatic control.

Drawings

Fig. 1 is a schematic structural diagram of an aeration oxygenation device of the invention.

Detailed Description

As shown in figure 1, a device for dissolving oxygen by graded pressure water comprises an evacuation port 1, an upper seal head 2, a lower seal head 11, an upper seal head connecting flange 3, a gas-liquid contact sieve plate 4, an equipment cylinder 5, a gas distribution plate 6, a medium-pressure dissolved gas water outlet 7, a high-pressure water inlet 8, a filler 9, a filler supporting plate 10, a lower seal head 11, a water outlet 12, an oxygen inlet 13, a gas-liquid separation device 14, a gas pressure release nozzle 15 and a medium-pressure water inlet 16, wherein the gas-liquid separation device 14 comprises a circumferential gas cabin 14-1, a central gas cabin 14-2 and a gas collecting pipe 14-3, the upper seal head 2 is welded and fixed on the upper end face of the equipment cylinder 5 through the upper seal head connecting flange 3, the evacuation port 1 is fixed at the top end of the upper seal head 2, the lower seal head 11 is fixed on the lower end face of the equipment cylinder 5, the evacuation port 12, a first gas-liquid contact sieve plate 4-1, a second gas-liquid contact sieve plate 4-2, a third gas-liquid contact sieve plate 4-3 and a fourth gas-liquid contact sieve plate 4-4 which are sequentially and uniformly fixed on the inner wall below a medium-pressure water inlet 16 of an equipment cylinder 5 from top to bottom, a gas distribution plate 6 and a gas-liquid separation device 14 are sequentially fixed on the inner wall below the fourth gas-liquid contact sieve plate 4-4 in the equipment cylinder 5 from top to bottom, a gas pressure release nozzle 15 is fixed on the upper end surface of a central gas bin 14-2 of the gas-liquid separation device 14, a high-pressure water inlet 8 is fixed on the outer side surface of the equipment cylinder 5 below the gas-liquid separation device 14, a packing support plate 10 is fixed at the lower end part of the inner wall of the equipment cylinder 5, a packing 9 is arranged on the packing support plate 10, the lower end enclosure 11 is fixed on the bottom end face of the equipment cylinder 5), and the water outlet 12 is fixed on the bottom end face of the lower end enclosure 11. Any gas-liquid contact packing can be used as the packing 9.

The gas distribution plate 6 is a convex circular cover plate, and micro through holes are uniformly distributed on the plate.

The fixed connection between the components is all welded and fixed, and the pressure resistance of the whole device is 10-60kg/cm²And the temperature is 0-45 ℃.

The part above the gas distribution plate 6 in the equipment barrel 5 is the water soluble oxygen region of middling pressure, below the part is the water soluble oxygen region of high pressure, and the water soluble oxygen region of high pressure is two independent devices that water soluble oxygen device of middling pressure and water soluble oxygen device of middling pressure for the water soluble oxygen device of high pressure, adopts pipeline, valve to link together.

The realization method comprises preparing oxygen by air separation device with air as oxygen source, or directly preparing oxygen by canned industrial oxygen as oxygen source, and reducing pressure by pressure reducing device to obtain oxygen with pressure of 2-20kg/cm²Preferably 6 to 9kg/cm²For later use, 4-15kg/cm²Preferably 6 to 9kg/cm²The high-pressure water is filled with 4-15kg/cm pressure from the high-pressure water inlet 8 of the equipment cylinder 5 to the high-pressure water oxygen dissolving area²Dissolved oxygen water is required, 6-9kg/cm²The high-pressure oxygen enters the equipment cylinder 5 from the oxygen inlet 13, the filler 9 is placed in the filler placing area and fully contacts with water, the oxygen is dissolved in the water, the mass ratio of the high-pressure oxygen-enriched water to the water is 0.4-0.6:1 (g/kg), the high-pressure oxygen-enriched water is discharged through the water outlet 12, the oxygen which is not dissolved in the high-pressure area floats upwards and enters the central gas bin 14-2 of the gas-liquid separation device 14 for gas-liquid separation, the oxygen enters the gas collecting pipe 14-3 and controls the pressure of the oxygen to be 2-6kg/cm by controlling the pressure on the gas pressure releasing nozzle 15²And enters the middle pressure area after being released, the gas distribution plate 6 is a device for uniformly distributing the gas, the oxygen which is not dissolved in the high pressure area is uniformly distributed through the gas distribution plate 6, and simultaneously, the middle pressure water inlet 16 of the equipment cylinder 5 is filled with the water with the pressure of 2-6kg/cm to the middle pressure water-soluble oxygen area²The water needing dissolved oxygen contacts with oxygen which is not dissolved in the high-pressure water-soluble oxygen region on the gas-liquid contact sieve plate 4 and is dissolved in the water, and the formed medium-pressure dissolved oxygen water is discharged from a medium-pressure dissolved oxygen water outlet 7 andpressurizing to 4-15kg/cm by a pressurizing pump²Then enters a high-pressure water-soluble oxygen area from a high-pressure water inlet 8, the liquid flow of the medium-pressure water-soluble oxygen area is equal to or larger than that of the high-pressure area, high-pressure oxygen dissolving is carried out again, and the excess water of the medium-pressure water-soluble oxygen area is stored in a circulating mode of the medium-pressure water-soluble oxygen area.

The entering water is contacted with oxygen which is not dissolved from the high-pressure area on the gas-liquid contact sieve plate 4 and dissolved in the water. The medium-pressure dissolved oxygen water after dissolving oxygen is discharged from the medium-pressure dissolved gas water outlet 7. After being pressurized by a pressurizing pump, the high-pressure water enters the high-pressure area from a high-pressure water inlet 8. The medium and high pressure zones are at equal fluid flow rates. It is also possible that the medium pressure zone has a higher flow than the high pressure zone. The excess water in the medium-pressure area adopts a medium-pressure area circulation mode. By the above, oxygen can be substantially dissolved in water.