Air purification precooling equipment

Abstract

The utility model relates to the technical field of precooling equipment, in particular to air purification precooling equipment. According to the technical scheme, the device comprises a purification barrel, an air cooling tower, a first water cooling tower and a second water cooling tower, a first air supply pipe is installed between the purification barrel and the air cooling tower in a penetrating mode, a first water supply pipe is installed between the air cooling tower and the first water cooling tower in a penetrating mode, a second water supply pipe is installed between the air cooling tower and the second water cooling tower in a penetrating mode, and a DCS control system is arranged on the rear side of the purification barrel. A water return pipe is installed between the air cooling tower and the first water cooling tower in a penetrating mode, an air guide pipe is installed in one end of the purification cylinder in a penetrating mode, a filter screen is arranged in the purification cylinder, a grid frame is arranged at the upper end of the filter screen, and activated carbon is arranged in the grid frame. According to the utility model, through the matching between the redundant water cooling tower II and the liquid level sensor structure, the influence on the pre-cooling effect during air purification due to unstable liquid level of the air cooling tower and water level of the water cooling tower caused by frequent fluctuation of water flow is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of precooling equipment, in particular to an air purification precooling equipment. Background Art

[0002] The precooling system is an indispensable part of the air separation system. After filtration and compression, the temperature of the air is about 100 degrees, and it must pass through a set of precooling systems for cooling before entering the downstream purification system and finally undergoing rectification separation.

[0003] In the prior art, the precooling system respectively has an air cooling tower and a water cooling tower. The air is cooled twice by circulating water and low-temperature chilled water in the air cooling tower; the water cooling tower cools the return water of the circulating water or low-temperature cooling water. The two tower bodies of the air cooling tower and the water cooling tower occupy a large area, and the water circuit system goes back and forth between the two tower bodies. The supporting water pumps and water pipes are also relatively complex, and the water flow often fluctuates, resulting in unstable liquid levels in the air cooling tower and water levels in the water cooling tower, affecting the precooling effect during air purification. Therefore, we propose an air purification precooling equipment to solve the existing problems. Summary of the Utility Model

[0004] The purpose of the utility model is to propose an air purification precooling equipment for the problems existing in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an air purification precooling equipment, including a purification cylinder, an air cooling tower, a first water cooling tower, a liquid level sensor and a second water cooling tower. A first air delivery pipe is installed through the purification cylinder and the air cooling tower in a through manner. A first water delivery pipe is installed through the air cooling tower and the first water cooling tower in a through manner. A second water delivery pipe is installed through the air cooling tower and the second water cooling tower in a through manner. A DCS control system is arranged at the rear side of the purification cylinder. A return water pipe is installed through the air cooling tower and the first water cooling tower in a through manner. A guide air pipe is installed through one end of the purification cylinder. A filter screen is arranged inside the purification cylinder. A grid frame is arranged at the upper end of the filter screen. Activated carbon is arranged inside the grid frame. A second air delivery pipe is installed through one side of the upper end of the air cooling tower.

[0006] Preferably, brackets are sleeved on the outer walls of the purification cylinder, the air cooling tower, the first water cooling tower and the second water cooling tower. The lower ends of the brackets are higher than the bottom heights of the purification cylinder, the air cooling tower, the first water cooling tower and the second water cooling tower. The brackets support the purification cylinder, the air cooling tower, the first water cooling tower and the second water cooling tower, and when the purification cylinder, the air cooling tower, the first water cooling tower and the second water cooling tower are lifted, they are stabilized on the ground.

[0007] Preferably, a first solenoid valve is arranged inside the first water delivery pipe, and a second solenoid valve is arranged inside the second water delivery pipe. The first solenoid valve controls the opening and closing size of the first water delivery pipe, and the second solenoid valve controls the opening and closing size of the second water delivery pipe.

[0008] Preferably, a hopper is provided at the lower end of the purification cylinder, and the hopper is located below the air guide pipe. The hopper collects foreign matters intercepted by the filter screen.

[0009] Preferably, a discharge pipe is provided at the lower end of the hopper, and a control valve is provided inside the discharge pipe. The control valve controls the opening and closing of the discharge pipe, and the foreign matters inside the hopper are transported to the outside through the discharge pipe.

[0010] Preferably, the end of the air guide pipe located inside the purification cylinder has an opening facing upward, and a top cover is provided above the air guide pipe. The top cover is connected to the inner wall of the purification cylinder through a support rod. The gas transported by the air guide pipe flows upward, and the top cover shields the foreign matters falling on the filter screen to prevent the foreign matters from entering the inside of the air guide pipe.

[0011] Preferably, liquid level sensors are provided inside the upper ends of the air cooling tower, the first water cooling tower and the second water cooling tower.

[0012] Preferably, a sealing cover is provided at the opening inside the upper end of the purification cylinder. The sealing cover controls the opening and closing of the maintenance opening of the purification cylinder.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. The present utility model adds liquid level detection devices in the air cooling tower and the water cooling towers, feeds back the detected liquid level fluctuations to the DCS control system, sets PID parameters to adjust the liquid level. When the liquid level is low, through the redundantly arranged second water cooling tower, the second water cooling tower transports cooling water to compensate into the air cooling tower to avoid fluctuations in the cooling medium inside the air cooling tower and the problem of affecting the air cooling effect, and realizes effective precooling during the air purification process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a first perspective three-dimensional structural schematic diagram of the front view of the present utility model;

[0016] Figure 2 is a second perspective three-dimensional structural schematic diagram of the front view of the present utility model;

[0017] Figure 3 is a third perspective three-dimensional structural schematic diagram of the front view of the present utility model;

[0018] Figure 4 is a fourth perspective three-dimensional structural schematic diagram of the front view of the present utility model;

[0019] Figure 5 is a main sectional three-dimensional structural schematic diagram of the purification cylinder of the present utility model.

[0020] Reference numerals: 1, purification cylinder; 2, support; 3, first air supply pipe; 4, air cooling tower; 5, first solenoid valve; 6, first water supply pipe; 7, first water cooling tower; 8, second air supply pipe; 9, liquid level sensor; 10, second water cooling tower; 11, return water pipe; 12, sealing cover; 13, DCS control system; 14, second solenoid valve; 15, second water supply pipe; 16, filter screen; 17, grid frame; 18, air guide pipe; 19, ash hopper; 20, discharge pipe; 21, control valve; 22, top cover. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] As Figures 1 - 5 shown, an air purification and precooling device proposed by the present invention includes a purification cylinder 1, an air cooling tower 4, a first water cooling tower 7, a liquid level sensor 9, and a second water cooling tower 10. A first air supply pipe 3 is installed through the purification cylinder 1 and the air cooling tower 4 in a penetrating manner. A first water supply pipe 6 is installed through the air cooling tower 4 and the first water cooling tower 7 in a penetrating manner. A second water supply pipe 15 is installed through the air cooling tower 4 and the second water cooling tower 10 in a penetrating manner. A DCS control system 13 is arranged at the rear side of the purification cylinder 1. A return water pipe 11 is installed through the air cooling tower 4 and the first water cooling tower 7 in a penetrating manner. An air guide pipe 18 is installed through one end inside the purification cylinder 1. A filter screen 16 is arranged inside the purification cylinder 1. A grid frame 17 is arranged above the filter screen 16. Activated carbon is arranged inside the grid frame 17. A second air supply pipe 8 is installed through one side of the upper end of the air cooling tower 4;

[0023] Supports 2 are sleeved on the outer walls of the purification cylinder 1, the air cooling tower 4, the first water cooling tower 7, and the second water cooling tower 10. The lower ends of the supports 2 are higher than the bottom heights of the purification cylinder 1, the air cooling tower 4, the first water cooling tower 7, and the second water cooling tower 10;

[0024] A first solenoid valve 5 is arranged inside the first water supply pipe 6, and a second solenoid valve 14 is arranged inside the second water supply pipe 15;

[0025] An ash hopper 19 is arranged at the lower end of the purification cylinder 1, and the ash hopper 19 is located below the air guide pipe 18;

[0026] A discharge pipe 20 is arranged at the lower end of the ash hopper 19, and a control valve 21 is arranged inside the discharge pipe 20;

[0027] The opening of the air guide pipe 18 at the end inside the purification cylinder 1 faces upward. A top cover 22 is arranged above the air guide pipe 18, and the top cover 22 is connected to the inner wall of the purification cylinder 1 through a support rod;

[0028] A liquid level sensor 9 is provided inside the upper ends of the air-cooled tower 4, the first water-cooled tower 7, and the second water-cooled tower 10;

[0029] A sealing cover 12 is provided at the inner opening of the upper end of the purification cylinder 1;

[0030] Based on the implementation steps of Embodiment 1: The air guide pipe 18 conveys air into the purification cylinder 1. When the air flows, it passes through the filter screen 16 and activated carbon. The filter screen 16 intercepts impurities in the air, and the activated carbon adsorbs harmful substances in the air to reduce the concentration of carbon dioxide, sulfides, and other gas impurities. The gas enters the air-cooled tower 4 through the first air supply pipe 3 and exchanges heat with the cooling water through the heat exchange pipes inside the air-cooled tower 4. The water after heat exchange flows back to the inner wall of the first water-cooled tower 7, and the first water supply pipe 6 conveys cooling water into the air-cooled tower 4 to realize the circulation of the cooling water. The high-temperature air conveyed after compression is cooled by the cooling water, and the cooled air is transported out through the second air supply pipe 8;

[0031] The liquid level sensors 9 detect the liquid level heights of the air-cooled tower 4, the first water-cooled tower 7, and the second water-cooled tower 10. When the liquid level height inside the air-cooled tower 4 is low, the signal of the liquid level sensor 9 is transmitted to the DCS control system 13. The DCS control system 13 controls the second water-cooled tower 10 to convey cooling water to supplement the air-cooled tower 4 with insufficient water level, playing a role of redundant compensation. Moreover, the opening degree of the first water supply pipe 6 is controlled by the solenoid valve 5 to adjust the water supply flow rate, so as to realize stable pre-cooling treatment when purifying the high-temperature air.

[0032] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant revelations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0033] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. An air purification precooling device, comprising a purification cylinder (1), an air cooling tower (4), a water cooling tower 1 (7), a liquid level sensor (9) and a water cooling tower 2 (10), characterized in that: An air supply pipe (3) is installed through the purification cylinder (1) and the air cooling tower (4), a water supply pipe (6) is installed through the air cooling tower (4) and the water cooling tower (7), a water supply pipe (15) is installed through the air cooling tower (4) and the water cooling tower (10), a DCS control system (13) is installed at the rear side of the purification cylinder (1), a return pipe (11) is installed through the air cooling tower (4) and the water cooling tower (7), an air guide pipe (18) is installed through one end of the purification cylinder (1), a filter screen (16) is installed inside the purification cylinder (1), a mesh frame (17) is installed at the upper end of the filter screen (16), and activated carbon is installed inside the mesh frame (17), and an air supply pipe (8) is installed through one side of the upper end of the air cooling tower (4).

2. The air purification precooling equipment according to claim 1, characterized in that: The outer walls of the purification cylinder (1), the air cooling tower (4), the water cooling tower one (7) and the water cooling tower two (10) are all sleeved with a bracket (2), and the lower end of the bracket (2) is higher than the bottom height of the purification cylinder (1), the air cooling tower (4), the water cooling tower one (7) and the water cooling tower two (10).

3. The air purification precooling equipment according to claim 1, characterized in that: The water supply pipe 1 (6) is provided with a solenoid valve 1 (5) inside, and the water supply pipe 2 (15) is provided with a solenoid valve 2 (14) inside.

4. The air purification precooling equipment according to claim 1, characterized in that: An ash hopper (19) is provided at the lower end of the purification cylinder (1), and the ash hopper (19) is located below the air guide pipe (18).

5. The air purification precooling equipment according to claim 4, characterized in that: A discharge pipe (20) is provided at the lower end of the ash hopper (19), and a control valve (21) is provided inside the discharge pipe (20).

6. The air purification precooling equipment according to claim 1, characterized in that: The air guide pipe (18) is located inside the purification cylinder (1) with one end opening upwards, and a top cover (22) is arranged above the air guide pipe (18), and the top cover (22) is connected to the inner wall of the purification cylinder (1) via a support rod.

7. The air purification precooling equipment according to claim 1, characterized in that: Liquid level sensors (9) are arranged inside the upper ends of the air cooling tower (4), the first water cooling tower (7) and the second water cooling tower (10).

8. The air purification precooling equipment according to claim 1, characterized in that: A sealing cover (12) is provided at the inner opening of the upper end of the purification cylinder (1).

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