CN219301140U

CN219301140U - Low-energy consumption oxygen-making air separation tower

Info

Publication number: CN219301140U
Application number: CN202320794220.0U
Authority: CN
Inventors: 吴夷珊; 吴志赠
Original assignee: Kaifeng Jinyao Air Separation Equipment Co ltd
Current assignee: Kaifeng Jinyao Air Separation Equipment Co ltd
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-07-04
Anticipated expiration: 2033-04-11

Abstract

The utility model provides a low-energy consumption oxygen-making air separation tower, which belongs to the technical field of oxygen making and comprises an oxygen-making tower and a cooling tank, wherein a cooling pipe is arranged in the cooling tank in a penetrating way, the cooling pipe is correspondingly provided with a cooling tower, the cooling pipe is connected with the cooling tower, a coil pipe is arranged at the outer side of the oxygen-making tower, a water collecting tank is correspondingly arranged on the coil pipe, two ends of the coil pipe are connected with the water collecting tank, a heater is arranged in the water collecting tank, and the other end of the cooling pipe is connected with the water collecting tank; according to the utility model, the cooling liquid subjected to heat exchange can be input into the water collection tank, so that the energy consumption for heating the oxygen generation tower can be reduced.

Description

Low-energy consumption oxygen-making air separation tower

Technical Field

The utility model relates to the technical field of oxygen production equipment, in particular to a low-energy-consumption oxygen production air separation tower.

Background

Air separation, simply referred to as air separation, refers to a process of separating components from air by using a low-temperature freezing principle, and is generally carried out by compressing air and cooling to a very low temperature, or liquefying air by an expansion method, and then separating in a rectifying tower.

The air separation oxygen generating tower is a device for cooling air introduced by a steam turbine, meanwhile, the existing air separation oxygen generating tower is generally water-cooled, the steam turbine is sometimes pushed by steam, and water used for cooling in the existing air separation oxygen generating tower is generally cooled by a cooling tower after being used, so that heat contained in cooling water heated in cooling is wasted, and steam is additionally heated, so that the energy consumption is greatly increased.

Disclosure of Invention

In view of the above, the utility model provides a low-energy-consumption oxygen-making air separation tower, which can input the cooling liquid subjected to heat exchange into a water collection tank, thereby reducing the energy consumption for heating the oxygen-making tower.

In order to solve the technical problems, the utility model provides a low-energy-consumption oxygen-making air separation tower, which comprises an oxygen-making tower and a cooling tank, wherein the cooling tank is connected with the oxygen-making tower through a water supply pipe, a cooling pipe is arranged in the cooling tank in a penetrating way, liquid air in the cooling tank can be cooled by the cooling liquid flowing in the cooling pipe, a cooling tower is arranged corresponding to the cooling pipe, the cooling liquid in the cooling tower can enter the cooling pipe, a coil is arranged outside the oxygen-making tower, the coil is fixedly arranged on the outer side wall of the oxygen-making tower, a water collecting tank is arranged corresponding to the coil, the cooling liquid subjected to heat exchange enters the water collecting tank, two ends of the coil are connected with the water collecting tank, the cooling liquid in the water collecting tank enters the coil, a heater is arranged in the water collecting tank, the cooling liquid in the water collecting tank can be heated by the heater, the other end of the cooling pipe is connected with the water collecting tank, and the cooling pipe subjected to heat exchange enters the water collecting tank.

The oxygen generating tower comprises a tower body, a water inlet, a water outlet and hydraulic air, wherein the water inlet, the water outlet and the hydraulic air are arranged on the tower body, the hydraulic air can enter the tower body through the water inlet, the liquid oxygen can be discharged out of the tower body through the water outlet, the air outlet is provided with a plurality of partition boards, the nitrogen can be discharged out of the tower body through the air outlet, the plurality of partition boards are arranged in the tower body in a linear array, and the partition boards are provided with perforations; i.e. nitrogen will drift upward through the perforations.

The perforations between every two baffle plates are staggered. The mutually staggered perforations can facilitate the gas to flow in the tower body; each baffle is provided with a water storage tank which is of an arc-shaped structure; i.e. liquid air will fall into a plurality of reservoirs.

A blanking pipe is arranged at the bottom of the water storage tank, and a control valve is arranged on the blanking pipe; i.e. opening the control valve, the too much oxygen in the plurality of reservoirs can be vented.

A temperature sensor is arranged on the inner side wall of the tower body; namely, the temperature sensor can sense the temperature in the tower body.

In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

1. the cooling liquid flows through the cooling tank to achieve the effect of cooling the liquid air through heat exchange with the liquid air, then the cooling liquid subjected to heat exchange is led into the water collecting tank, the cooling liquid in the water collecting tank can indirectly heat the oxygen generating tower through the coil after being heated, and the cooling tank subjected to heat exchange contains certain heat, so that energy consumption generated when the cooling liquid in the water collecting tank is heated can be reduced.

2. The cooling liquid in the coil pipe can return to the header tank after heating up the oxygen generating tower, the cooling liquid exchanges heat with the oxygen generating tower to heat the oxygen generating tower, the temperature after the cooling liquid exchanges heat with the oxygen generating tower can be reduced to a certain extent, the cooling liquid after the temperature reduction can reenter the header tank, the water heater in the header tank can heat up the cooling liquid, and then reenter the coil pipe to heat up the oxygen generating tower.

Drawings

FIG. 1 is a schematic diagram of a low energy consumption oxygen generation air separation column according to the present utility model;

FIG. 2 is a schematic structural view of the rear view of the present utility model;

FIG. 3 is a schematic view of the structure of the oxygen generating tower of the present utility model;

fig. 4 is a schematic view of the structure of the header tank of the present utility model.

Reference numerals illustrate:

100. a cooling box; 101. a cooling tube; 102. a water cooling tower; 103. a coiled pipe; 104. a water collection tank; 105. a heater; 106. a water supply pipe;

200. an oxygen generating tower; 201. a water inlet; 202. a water outlet; 203. an air outlet hole; 204. a partition plate; 205. perforating; 206. a water storage tank; 207. discharging pipes; 208. a control valve; 209. a temperature sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 4 of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the utility model, fall within the scope of protection of the utility model.

As shown in fig. 1-4: the embodiment provides a low-energy consumption oxygen-making air separation tower, including oxygen-making tower 200 and cooling tank 100, the air forms hydraulic air through filtration and compression and gets into cooling tank 100 in, run through in the cooling tank 100 and set up cooling tube 101, cooling tube 101's tip is located cooling tower 102, and be connected with the water pump in the cooling tower 102, cooling liquid is held in cooling tower 102, cooling liquid in cooling tower 102 just can get into cooling tube 101, thereby liquid air just can exchange heat with the cooling liquid and then reach the cooling effect in cooling tank 100, the outside of oxygen-making tower 200 sets up coil 103, the both ends of coil 103 are connected with water header 104, cooling liquid in the water header 104 just can get into coil 103 and carry out the intensification to oxygen-making tower 200, cooling tube 101's tip is connected with water header 104, just can get into in the water header 104 through the cooling liquid of heat transfer.

Air is filtered and compressed to form liquid air and then is discharged into the cooling tank 100 through a pipeline, meanwhile, the water pump in the cooling tower 102 is controlled to work, the water pump can introduce cooling liquid stored in the cooling tower 102 into the cooling pipe 101, therefore, the liquid air can exchange heat with cooling liquid in the cooling pipe 101 when flowing in the cooling tank 100, the cooling effect is achieved, the liquid air can be cooled and enters the oxygen generating tower 200 through the water supply pipe 106106, the cooling liquid after heat exchange enters the water collecting tank 104 through the cooling pipe 101, two ends of the coil 103 are connected with the water collecting tank 104, the water pump is arranged at the end part of the coil 103, the heater 105 in the water collecting tank 104 is controlled to work to heat the cooling liquid in the water collecting tank 104, then the water pump is controlled to work, the heated cooling liquid can be led into the coil 103, the cooling liquid in the pipe can return to the water collecting tank 104 after being heated, the cooling liquid and the oxygen generating tower 200 exchange heat with the cooling liquid, the temperature of the oxygen generating tower 200 can be lowered, the temperature of the cooling liquid after the cooling liquid and the temperature of the oxygen generating tower 200 can be cooled again enter the water collecting tank 104, and then the water tank 103 can be heated again, and the heated up, and the cooling liquid in the water tank 200 can be heated.

The oxygen generating column 200 is shown in figure 3,

the oxygen generating tower 200 comprises a tower body, a water inlet 201, a water outlet 202 and an air outlet 203, wherein the water inlet 201 and the water outlet 202 are arranged on the tower body, the water inlet 201 is arranged at the side of the upper end of the tower body and is connected with a water supply pipe 106106, the water outlet 202 is arranged under the tower body and is positioned on the same axis with the tower body, liquid oxygen passing through air separation can be discharged from the water outlet 202, the air outlet 203 is arranged right above the tower body, the boiling point of nitrogen is lower than that of oxygen, the nitrogen becomes gas when the temperature reaches-196 ℃ and then is discharged out of the tower body through the air outlet, a plurality of partition plates 204 are arranged in the tower body, the partition plates 204 are vertically arranged in a linear array, and perforated holes 205 through which air and liquid can pass are arranged on the partition plates 204.

Perforations 205 between each two baffles 204 are staggered; the staggered arrangement of perforations 205 can facilitate gas flow within the column. Each baffle 204 is provided with a water storage tank 206, and the water storage tanks 206 are of arc structures; i.e., liquid air, will fall within the plurality of reservoirs 206. A blanking pipe 207 is arranged at the bottom of the water storage tank 206, and a control valve 208 is arranged on the blanking pipe 207;

after entering the tower body through the water inlet 201, liquid air can fall into the uppermost water storage tank 206, and after the uppermost water storage tank 206 is full, the liquid air overflows outwards and falls downwards through the perforations 205, so that the liquid air indirectly flows into the plurality of water storage tanks 206, meanwhile, nitrogen in the liquid air can be gasified by heating the tower body, then is discharged through the air outlet through the plurality of perforations 205, and then the control valve 208 on the blanking pipe 207 is opened, so that liquid oxygen in the tower body can be indirectly discharged through the water outlet 202.

Liquid air is located in a plurality of reservoirs 206 as compared to conventional: conventional liquid air is concentrated, and the temperature of the liquid below the liquid is slightly higher than that of the liquid above the liquid, so that the air separation is inaccurate.

A temperature sensor 209 is arranged on the inner side wall of the tower body; that is, the temperature sensor 209 senses the temperature in the tower.

Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.

Claims

1. The utility model provides a low energy consumption system oxygen space division tower which characterized in that: including oxygen generation tower (200) and cooling tank (100), wear to establish cooling tube (101) in cooling tank (100), correspond cooling tube (101) and set up cooling tower (102), cooling tube (101) are connected with cooling tower (102), oxygen generation tower (200) outside sets up coil pipe (103), corresponds coil pipe (103) and sets up header tank (104), coil pipe (103) both ends are connected with header tank (104), set up heater (105) in header tank (104), the cooling tube (101) other end is connected with header tank (104).

2. A low energy oxygen generating air separation column as defined in claim 1, wherein: the oxygen generating tower (200) comprises a tower body, a water inlet (201), a water outlet (202) and an air outlet (203) which are arranged on the tower body, a plurality of partition plates (204) are arranged in the tower body, and perforations (205) are arranged on the partition plates (204).

3. A low energy oxygen generating air separation column as defined in claim 2, wherein: the perforations (205) between every two baffle plates (204) are staggered.

4. A low energy oxygen generating air separation column as recited in claim 3, wherein: each baffle (204) is provided with a water storage groove (206), and each water storage groove (206) is of an arc-shaped structure.

5. A low energy oxygen generating air separation column as defined in claim 4, wherein: a blanking pipe (207) is arranged at the bottom of the water storage tank (206), and a control valve (208) is arranged on the blanking pipe (207).

6. A low energy oxygen generating air separation column as recited in claim 5, wherein: a temperature sensor (209) is arranged on the inner side wall of the tower body.