Five-partition rotating wheel system capable of increasing concentration and efficiency

Abstract

The utility model discloses a thickening and efficiency-improving five-zone rotating wheel system which comprises an adsorption zone, the upper side of the adsorption zone is connected with a cooling zone, the upper side of the cooling zone is connected with a plurality of desorption zones, the two sides of the adsorption zone are connected with waste gas channels, one side of the cooling zone is communicated with a condenser, and the other side of the cooling zone is communicated with the desorption zones. An outlet of the cooling area is communicated with an inlet of the desorption area on the uppermost side, an outlet of the desorption area on the lowermost side is communicated with an inlet of the condenser, an outlet of the condenser is communicated with an inlet of the cooling area, and nitrogen channels are further arranged on one side of the cooling area and one side of the desorption area on the uppermost side. The deep cooling air amount is reduced through the multi-desorption design, meanwhile, desorption and cooling are a circulation integrated system, oxygen control is conducted through nitrogen linkage oxygen content, internal oxygen and pressure balance is guaranteed, and the safety problems such as explosion caused by contact of oxygen and high-concentration waste gas are solved; through the multiple desorption areas, the desorption effect of the rotating wheel is improved, desorption is more complete, and the adsorption efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of pollutant treatment equipment, specifically a five-zone rotary system for increasing concentration and improving efficiency. Background Technology

[0002] VOCs have three effects: hydrocarbons and nitrogen oxides react under ultraviolet light to produce ozone, which can lead to atmospheric photochemical smog events, seriously endangering human health and ecological safety. At the same time, some VOCs also participate in the formation of secondary aerosols in the atmosphere. Secondary aerosols are mostly fine particles that are not easy to settle and can remain in the atmosphere for a long time. They have a strong scattering power of light and can significantly reduce atmospheric visibility.

[0003] Industries such as pharmaceuticals, chemicals, adhesives, coatings, and paints generate large amounts of VOC-containing waste gas. Among these, the coating industry typically produces VOCs with low concentrations but large volumes. Current rotary concentrators for treating this type of VOC can only concentrate the gas 15-20 times, not exceeding the 25% LEL (Less than Explosive Limit) of the pollutants. Excessive concentration poses an explosion risk upon contact with oxygen. Therefore, research is needed to improve VOC concentration while avoiding explosion risks, reducing the health threats posed by VOCs to the environment and organisms, and significantly improving VOC treatment processes. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a five-zone rotary system for enrichment and efficiency improvement, in which the desorption and cooling is an integrated circulation system, and the oxygen content is controlled by nitrogen interlocking to ensure the internal oxygen and pressure balance and avoid safety problems caused by contact between oxygen and high-concentration waste gas.

[0005] This utility model is achieved through the following technical solution: A five-zone rotary system for concentration enhancement and efficiency improvement includes an adsorption zone, a cooling zone connected to the upper side of the adsorption zone, multiple desorption zones connected to the upper side of the cooling zone, exhaust gas channels connected to both sides of the adsorption zone, a condenser connected to one side of the cooling zone, the outlet of the cooling zone connected to the inlet of the uppermost desorption zone, the outlet of the lowermost desorption zone connected to the inlet of the condenser, and the outlet of the condenser connected to the inlet of the cooling zone. A nitrogen inlet channel is also provided on one side of the cooling zone and the uppermost desorption zone. A regeneration heating channel is also provided in each of the multiple desorption zones, and multiple heaters are installed within the regeneration heating channel.

[0006] A further technical solution involves installing an oxygen detection port at the outlet of the uppermost desorption zone.

[0007] A further technical solution involves connecting a first fan to the exhaust gas pipeline on the outlet side of the adsorption zone.

[0008] In a further technical solution, the nitrogen inlet channel is connected to the outlet side of the uppermost desorption zone, and the nitrogen inlet channel is also connected to the outlet side of the condenser.

[0009] In a further technical solution, the heater is located on the inlet side of the desorption zone.

[0010] A further technical solution involves connecting a second fan to the outlet side of the uppermost desorption zone.

[0011] In a further technical solution, a cooling water outlet and a cooling water inlet are provided on one side of the condenser.

[0012] In a further technical solution, a leakage detection channel is also connected to the outlet side of the condenser.

[0013] In a further technical solution, a third fan is provided between the cooling zone and the condenser, and the third fan is connected between the outlet of the condenser and the inlet of the cooling zone.

[0014] In a further technical solution, the regenerative heating channel connects multiple desorption zones, condensers, and cooling zones in series.

[0015] In a further technical solution, the regenerative heating channel is located between the outlet of the cooling zone and the inlet of the uppermost desorption zone, the regenerative heating channel is located between the inlet of the condenser and the outlet of the lowermost desorption zone, the regenerative heating channel is connected to the inlet and outlet side of the middle desorption zone, and then connected to the outlet or inlet of the uppermost and lowermost desorption zones.

[0016] The beneficial effects of this utility model are as follows: First, the system adopts an integrated adsorption-desorption system with multiple desorption zones, cooling zones, and adsorption zones. This system can effectively improve the VOC rotor concentration ratio, break through the 25% LEL limit of the concentration condenser, and reach 50% or even 100% LEL. It provides deep cooling concentration, reduces deep cooling air volume, and reduces deep cooling operation energy consumption. At the same time, the desorption and cooling are integrated into a circulating system, and the oxygen content is controlled by nitrogen interlocking with oxygen content to ensure internal oxygen and pressure balance and avoid safety issues caused by oxygen contacting high-concentration waste gas. After passing through multiple desorption zones, the rotor desorption effect changes, the adsorption capacity becomes stronger, and the concentration efficiency is improved.

[0017] Second, the system adopts an integrated adsorption and desorption process with multiple desorption zones, cooling zones, and adsorption zones. It is also equipped with a regeneration heating channel and an oxygen detection port to control the oxygen content, thus realizing the system's efficient adsorption and desorption functions and avoiding the risk of explosion caused by excessive VOC concentration. Attached Figure Description

[0018] For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of a five-zone rotary system for thickening and improving efficiency according to this utility model;

[0020] In the diagram, there are nitrogen inlet channel 11, second fan 12, regeneration heating channel 13, heater 14, oxygen detection port 15, first fan 17, third fan 21, air leakage detection channel 24, condenser 25, cooling water outlet 26, and cooling water inlet 27. Detailed Implementation

[0021] like Figure 1 As shown, this utility model will be described in detail. For ease of description, the directions mentioned below are defined as follows: the directions of up, down, left, right, front, and back mentioned below are the same as... Figure 1 The projection relationships are consistent in all directions (up, down, left, right, front, back). This utility model provides a five-zone rotary system for enhancing concentration and efficiency, including an adsorption zone. A cooling zone is connected to the upper side of the adsorption zone, and multiple desorption zones are connected to the upper side of the cooling zone. Waste gas channels are connected to both sides of the adsorption zone. The adsorption zone adsorbs waste gas containing VOCs. A condenser 25 is connected to one side of the cooling zone. The outlet of the cooling zone is connected to the inlet of the uppermost desorption zone, and the outlet of the lowermost desorption zone is connected to the inlet of the condenser 25. The outlet of the condenser 25 is connected to the inlet of the cooling zone. A nitrogen inlet channel 11 is also provided on one side of the cooling zone and the uppermost desorption zone. A regeneration heating channel 13 is also provided in the multiple desorption zones, and multiple heaters 14 are provided in the regeneration heating channel 13.

[0022] Advantageously, the uppermost desorption zone outlet is equipped with an oxygen detection port 15, which is used to detect the oxygen concentration. When the oxygen concentration is high, the nitrogen concentration injected through the nitrogen inlet channel 11 is increased, and the system maintains a slight positive pressure (through pressure transmission) to ensure that the oxygen content inside the system is controlled below 5%.

[0023] Advantageously, the exhaust gas pipeline on the outlet side of the adsorption zone is connected to a first fan 17, which is used to transport the exhaust gas.

[0024] Advantageously, the nitrogen inlet channel 11 is connected to the outlet side of the uppermost desorption zone, and the nitrogen inlet channel 11 is also connected to the outlet side of the condenser 25. By using the nitrogen inlet channel 11 to introduce nitrogen, the oxygen content of the nitrogen is linked to control the oxygen, ensuring the internal oxygen and pressure, and avoiding safety issues caused by oxygen contacting high-concentration exhaust gas.

[0025] Advantageously, the regenerative heating channel 13 is located between the outlet of the cooling zone and the inlet of the uppermost desorption zone, and between the inlet of the condenser 25 and the outlet of the lowermost desorption zone. The regenerative heating channel 13 is also connected to the inlet and outlet side of the middle desorption zone, and then connected to the outlet or inlet of the uppermost and lowermost desorption zones. Multiple desorption zones are connected in series. If there are multiple middle desorption zones, the inlet and outlet are connected by the regenerative heating channel 13 in the same way.

[0026] Advantageously, the heater 14 is located on the inlet side of the desorption zone to provide heat to the regeneration heating channel 13.

[0027] Advantageously, a second fan 12 is connected to the outlet side of the uppermost desorption zone to transport the gas.

[0028] Advantageously, the condenser 25 is provided with a cooling water outlet 26 and a cooling water inlet 27 on one side, cooling water is introduced through the cooling water inlet 27 and cooling water is discharged through the cooling water outlet 26.

[0029] Advantageously, a leakage detection channel 24 is also connected to the outlet side of the condenser 25. The leakage detection channel 24 adopts a T-junction and a blind flange to realize leakage testing.

[0030] Advantageously, a third fan 21 is provided between the cooling zone and the condenser 25. The third fan 21 is connected between the outlet of the condenser 25 and the inlet of the cooling zone, and the gas is transported by the third fan 21.

[0031] When the system is in operation, it forms a desorption and cooling integrated system by combining the desorption zone, cooling zone and adsorption zone. After VOC waste gas is introduced into the waste gas pipeline, the VOC pollutants in the VOC waste gas are absorbed by the adsorption zone, and the adsorbed waste gas is discharged from the outlet of the adsorption zone by the action of the first fan 17.

[0032] During the desorption and cooling stage, the third fan 21 and the second fan 12 provide airflow to continuously drive the nitrogen and air. After the heater 14 starts working, it heats the mixed gas. After passing through the desorption zone, the VOCs pollutants are desorbed. Then, the mixed gas is cooled by the condenser 25 and the cooling zone, and then enters the desorption zone for circulation, thereby achieving a highly efficient desorption and cooling function.

[0033] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without creative effort should be included within the protection scope of this utility model; therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A five-zone intensified concentrator system comprising an adsorption zone, characterized in that, The cooling zone is connected with a plurality of desorption zones on the upper side, the cooling zone is connected with a condenser (25) on one side, the outlet of the cooling zone is communicated with the inlet of the uppermost desorption zone, the outlet of the lowermost desorption zone is communicated with the inlet of the condenser (25), the outlet of the condenser (25) is communicated with the inlet of the cooling zone, the cooling zone and the uppermost desorption zone are further provided with a nitrogen inlet channel (11) on one side, a plurality of regeneration heating channels (13) are further provided in the desorption zones, and a plurality of heaters (14) are arranged in the regeneration heating channels (13).

2. The five-zone enhanced concentration runner system of claim 1, wherein: The regeneration heating channels (13) are connected in series to communicate the plurality of desorption zones, the condenser (25) and the cooling zone.

3. The five-zone enhanced concentration runner system of claim 2, wherein: The regeneration heating channels (13) are arranged between the outlet of the cooling zone and the inlet of the uppermost desorption zone, the regeneration heating channels (13) are arranged between the inlet of the condenser (25) and the outlet of the lowermost desorption zone, and the regeneration heating channels (13) are connected on one side of the inlet and outlet of the intermediate desorption zone, and then communicated with the outlet or inlet of the uppermost and lowermost desorption zones.

4. A five-zone enhanced concentration runner system according to any one of claims 1-3, characterized in that: The outlet of the uppermost desorption zone is provided with an oxygen detection port (15).

5. A five-zone enhanced concentration runner system according to any of claims 1-3, wherein: A first fan (17) is arranged in the waste gas pipeline on one side of the outlet of the adsorption zone.

6. A five-zone enhanced concentration runner system according to any of claims 1-3, wherein: The nitrogen inlet channel (11) is connected on one side of the outlet of the uppermost desorption zone, and the nitrogen inlet channel (11) is further connected on one side of the outlet of the condenser (25).

7. A five-zone enhanced concentration runner system according to any of claims 1-3, wherein: The heaters (14) are arranged on one side of the inlet of the desorption zone.

8. A five-zone enhanced concentration runner system according to any of claims 1-3, wherein: A second fan (12) is arranged on one side of the outlet of the uppermost desorption zone.

9. A five-zone enhanced concentration runner system according to any of claims 1-3, wherein: A third fan (21) is arranged between the outlet of the condenser (25) and the inlet of the cooling zone.

10. A five-zone enhanced concentration runner system according to any of claims 1-3, wherein: A leakage detection channel (24) is further arranged on one side of the outlet of the condenser (25).

Images