A zero-gas-consumption booster gas drying system

Abstract

This utility model relates to the technical field of gas drying equipment and discloses a zero-gas-consumption booster gas drying system. This utility model realizes adsorption, regeneration, and pressure equalization; it reduces the water content of the gas entering the system, improves the quality of the product gas, and reduces energy consumption and production costs. It produces low-dew-point dry gas, diverts a portion of clean and dry gas from the finished product gas, uses a booster to provide power, heats the circulating gas flow from the booster, and enters the second adsorption tower from bottom to top to heat and regenerate the adsorbent. After the hot gas flows out of the second adsorption tower, it enters a cooler for cooling before being output, and then the moisture is released by a gas-liquid separator, forming a complete cycle of heating and cooling until the temperature of the second adsorption tower drops to the set temperature. It consumes no finished product gas, reduces costs, and the whole process is basically free of venting, eliminating noise and pollution caused by sudden discharge of compressed gas. The switching is smooth and the service life of the adsorbent is extended.

Description

Technical Field

[0001] This utility model relates to the technical field of gas drying equipment, specifically a zero-gas-consumption pressurized gas drying system. Background Technology

[0002] In industrial production, compressed air is widely used in various fields as an important power source and process medium. However, compressed air often contains a certain amount of impurities such as moisture, oil, and dust, which can adversely affect production equipment and product quality. Therefore, drying compressed air to ensure its dryness and cleanliness is a crucial step in ensuring smooth industrial production and stable product quality. Traditional compressed air drying technologies mainly include refrigeration drying and adsorption drying. Refrigeration drying uses refrigeration technology to lower the temperature of compressed air, causing water vapor to condense into liquid water and be discharged. However, this method is not effective for drying compressed air with low dew point requirements. Adsorption drying uses adsorbents (such as molecular sieves and silica gel) to adsorb moisture from the compressed air to achieve the purpose of drying. However, traditional adsorption drying technology requires a certain amount of dried compressed air during the regeneration process, which not only wastes energy but also increases operating costs. To solve the above problems, we propose a zero-air-consumption booster gas drying system. Utility Model Content

[0003] The purpose of this invention is to provide a zero-gas-consumption booster gas drying system that does not consume finished gas, reduces costs, has virtually no venting throughout the process, eliminates noise and pollution caused by sudden discharge of compressed gas, ensures smooth switching, and extends the service life of the adsorbent.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a zero-gas-consumption pressurized gas drying system, comprising an inlet pipe, one end of which is connected to a filter, the other end of which is connected to a fifteenth connecting pipe, the other end of which is connected to a first connecting pipe, the other end of which is connected to a second connecting pipe, the other end of which is connected to a fourth connecting pipe and a fifth connecting pipe respectively, a third connecting pipe is disposed between the fourth and fifth connecting pipes, the surfaces of the fourth and fifth connecting pipes are in communication with the third connecting pipe, the other end of the fourth connecting pipe is connected to a first adsorption tower, the other end of the fifth connecting pipe is connected to a second adsorption tower, the other ends of the first and second adsorption towers are respectively connected to a ninth connecting pipe and a tenth connecting pipe, a twelfth connecting pipe is disposed between the ninth and tenth connecting pipes, and the two ends of the twelfth connecting pipe are respectively connected to the ninth connecting pipe and the... The tenth connecting pipe is connected to the eleventh connecting pipe at the other end of the ninth and tenth connecting pipes. The surface of the twelfth connecting pipe is connected to the thirteenth connecting pipe, the other end of the thirteenth connecting pipe is connected to a cooler, the other end of the cooler is connected to the fourteenth connecting pipe, the other end of the fourteenth connecting pipe is connected to a gas-liquid separator, the other end of the gas-liquid separator is connected to the fifteenth connecting pipe, the surface of the eleventh connecting pipe is connected to the sixteenth connecting pipe, the other end of the sixteenth connecting pipe is connected to a dust filter, the other end of the dust filter is connected to the seventeenth connecting pipe, the surface of the third connecting pipe is connected to the sixth connecting pipe, the other end of the sixth connecting pipe is connected to a heater, the other end of the heater is connected to the seventh connecting pipe, the other end of the seventh connecting pipe is connected to a booster compressor, the other end of the booster compressor is connected to the eighth connecting pipe, and the other end of the eighth connecting pipe is connected to the seventeenth connecting pipe.

[0005] The above technical solution utilizes a network of pipes to connect the adsorption tower, cooler, gas-liquid separator, heater, booster, filter, and dust filter, thereby achieving adsorption, regeneration, and pressure equalization. This reduces the moisture content of the gas entering the system, improves the quality of the product gas, and simultaneously reduces energy consumption and production costs. It produces low-dew-point dry gas. Using this novel process, a portion of clean, dry gas is diverted from the finished product gas. Powered by the booster, the heated circulating gas flows from the booster and upwards into the second adsorption tower, where the adsorbent is regenerated. After exiting the second adsorption tower, the hot gas is cooled in the cooler before being output, and then the moisture is released by the gas-liquid separator, forming a complete heating and cooling cycle until the temperature of the second adsorption tower drops to the set temperature. This process consumes no finished product gas, reducing costs. The entire process is virtually ventless, eliminating noise and pollution caused by sudden compressed gas emissions. Switching is smooth, extending the adsorbent's lifespan. This process essentially achieves zero emissions and saves energy.

[0006] The present invention is further configured such that both the first adsorption tower and the second adsorption tower are provided with an adsorption desiccant.

[0007] The above technical solution involves setting up an adsorption desiccant and using pipelines and the desiccant to reduce the overall moisture content of the gas entering the system, thereby meeting quality requirements.

[0008] The present invention is further configured such that the cooler is either water-cooled or air-cooled.

[0009] The above technical solution is adopted by setting the cooler to be either water-cooled or air-cooled, which facilitates its use.

[0010] The present invention is further configured such that the heater is one of an electric heater and a heat exchanger.

[0011] The above technical solution is adopted by setting the heater to be either an electric heater or a heat exchanger, which facilitates its use.

[0012] The present invention is further configured such that the booster compressor is one of a variety of compression methods such as piston type, screw type, scroll type, centrifugal type, etc.

[0013] The above technical solution adopts a method that allows the booster compressor to be configured with one of several compression methods, such as piston, screw, scroll, or centrifugal, making it convenient to use.

[0014] The present invention is further configured such that an online analyzer is provided at the output end of the dust filter.

[0015] By adopting the above technical solution, and by setting up an online analyzer to analyze whether the gas is qualified, compared with the prior art, this utility model provides a compressed gas drying system with zero gas consumption, pressurization, heating and regeneration, which has the following beneficial effects:

[0016] 1. This utility model connects the first adsorption tower, the second adsorption tower, the cooler, the gas-liquid separator, the heater, the booster, the filter, and the dust filter into a network to achieve adsorption, regeneration, and pressure equalization; thereby reducing the water content of the gas entering the system, improving the quality of the product gas, and reducing energy consumption and production costs.

[0017] 2. This invention produces low-dew-point dry gas by diverting a portion of clean, dry gas from the finished product gas. A booster compressor provides power to heat the circulating gas flow, which then enters the second adsorption tower from bottom to top. The adsorbent is regenerated by heating. After exiting the second adsorption tower, the hot gas is cooled in a cooler before being output. Moisture is then released by a gas-liquid separator, forming a complete cycle of heating and cooling until the temperature of the second adsorption tower drops to the set temperature. This process consumes no finished product gas, reducing costs. The entire process is virtually ventless, eliminating noise and pollution caused by sudden compressed gas emissions. Switching is smooth, extending the adsorbent's lifespan. This equipment essentially achieves zero emissions, saving energy.

[0018] 3. This utility model adopts a combination of temperature swing adsorption and pressure swing adsorption technology, that is, the adsorption and desorption process is carried out under different temperature and pressure conditions. Through heat recovery and recycling, this equipment significantly reduces energy consumption and operating costs, which is in line with the current development trend of energy conservation and environmental protection. With its unique advantages and broad application prospects, this technology will become an important development direction in the future industrial gas treatment field. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the system structure for implementing this utility model.

[0020] In the diagram: 1. First adsorption tower; 3. Second adsorption tower; 4. Booster; 5. Heater; 6. Filter; 7. Gas-liquid separator; 8. Cooler; 9. Dust filter; 10. Inlet pipe; 11. First connecting pipe; 12. Second connecting pipe; 13. Third connecting pipe; 14. Fourth connecting pipe; 15. Fifth connecting pipe; 16. Thirteenth connecting pipe; 17. Fourteenth connecting pipe; 18. Fifteenth connecting pipe; 19. Sixteenth connecting pipe; 20. Seventeenth connecting pipe; 21. Eighteenth connecting pipe; 22. Twelfth connecting pipe; 23. Nineteenth connecting pipe; 24. Twentieth connecting pipe; 25. Twenty-first connecting pipe; 26. Eighth connecting pipe; 27. Sixth connecting pipe; 28. Online analyzer. Detailed Implementation

[0021] The following will refer to the embodiments of this utility model. Figure 1 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Example: Please refer to Figure 1A zero-gas-consumption pressurized gas drying system includes an inlet pipe 10. One end of the inlet pipe 10 is connected to a filter 6, and the other end of the inlet pipe 10 is connected to a fifteenth connecting pipe 25. The other end of the filter 6 is connected to a first connecting pipe 11, and the other end of the first connecting pipe 11 is connected to a second connecting pipe 12. The other end of the second connecting pipe 12 is connected to a fourth connecting pipe 14 and a fifth connecting pipe 15, respectively. A third connecting pipe 13 is disposed between the fourth connecting pipe 14 and the fifth connecting pipe 15, and the surfaces of the fourth connecting pipe 14 and the fifth connecting pipe 15 are in communication with the third connecting pipe 13. The other end of the fourth connecting pipe 14 is connected to a first adsorption tower 1, and the other end of the fifth connecting pipe 15 is connected to a second adsorption tower 3. The other ends of the first adsorption tower 1 and the second adsorption tower 3 are connected to a ninth connecting pipe 19 and a tenth connecting pipe 20, respectively. A twelfth connecting pipe 22 is disposed between the ninth connecting pipe 19 and the tenth connecting pipe 20, and the two ends of the twelfth connecting pipe 22 are connected to the ninth connecting pipe 19 and the tenth connecting pipe 20, respectively. 0 is connected. The other end of the ninth connecting pipe 19 and the tenth connecting pipe 20 is connected to the eleventh connecting pipe 21. The surface of the twelfth connecting pipe 22 is connected to the thirteenth connecting pipe 23. The other end of the thirteenth connecting pipe 23 is connected to the cooler 8. The other end of the cooler 8 is connected to the fourteenth connecting pipe 24. The other end of the fourteenth connecting pipe 24 is connected to the gas-liquid separator 7. The other end of the gas-liquid separator 7 is connected to the fifteenth connecting pipe 25. The surface of the eleventh connecting pipe 21 is connected to the sixteenth connecting pipe 26. The other end of the sixteenth connecting pipe 26 is connected to the dust filter 9. The other end of the dust filter 9 is connected to the seventeenth connecting pipe 27. The surface of the third connecting pipe 13 is connected to the sixth connecting pipe 16. The other end of the sixth connecting pipe 16 is connected to the heater 5. The other end of the heater 5 is connected to the seventh connecting pipe 17. The other end of the seventh connecting pipe 17 is connected to the booster 4. The other end of the booster 4 is connected to the eighth connecting pipe 18. The other end of the eighth connecting pipe 18 is connected to the seventeenth connecting pipe 27. By connecting the first adsorption tower 1, the second adsorption tower 3, the cooler 8, the gas-liquid separator 7, the heater 5, the booster 4, the filter 6, and the dust filter 9 into a network, adsorption, regeneration, and pressure equalization are achieved. This reduces the moisture content of the gas entering the system, improves the quality of the product gas, and reduces energy consumption and production costs. Low-dew-point dry gas is produced. Using this novel process, a portion of clean, dry gas is diverted from the finished product gas. Powered by the booster 4, the heated circulating gas is output from the booster 4 and enters the second adsorption tower 3 from bottom to top (or top to bottom) to regenerate the adsorbent. After exiting the second adsorption tower 3, the hot gas enters the cooler 8 for cooling before being output. Moisture is then released by the gas-liquid separator 7, forming a complete heating and cooling cycle until the temperature of the second adsorption tower 3 drops to the set temperature. No finished product gas is consumed, reducing costs. The entire process is essentially ventless, eliminating noise and pollution caused by sudden compressed gas emissions. Switching is smooth, extending the adsorbent's lifespan. This equipment essentially achieves zero emissions and saves energy.

[0023] Please see Figure 1 Both the first adsorption tower 1 and the second adsorption tower 3 are equipped with adsorption desiccant. By setting up adsorption desiccant and using pipelines and desiccant, the overall moisture content of the gas entering the system is reduced to meet the quality requirements.

[0024] Please see Figure 1 Cooler 8 is either water-cooled or air-cooled, which makes it convenient to use.

[0025] Please see Figure 1 Heater 5 is one of an electric heater and a heat exchanger. By setting heater 5 to be one of an electric heater and a heat exchanger, it is convenient to use.

[0026] Please see Figure 1 The dust filter 9 is equipped with an online analyzer 28 at its output end. The online analyzer 28 is used to analyze whether the gas is qualified.

[0027] Brief description of the operation process: By connecting the first adsorption tower 1, the second adsorption tower 3, the cooler 8, the gas-liquid separator 7, the heater 5, the booster 4, the filter 6, and the dust filter 9 into a network, adsorption, regeneration, and pressure equalization are achieved. This reduces the moisture content of the gas entering the system, improves the quality of the product gas, and reduces energy consumption and production costs. It produces dry gas with a low dew point. Using a novel process, a portion of clean and dry gas is diverted from the finished product gas. Powered by the booster 4, the heated circulating gas is output from the booster 4 and enters the second adsorption tower 3 from bottom to top (or top to bottom) to regenerate the adsorbent. After the hot gas exits the second adsorption tower 3, it enters the cooler 8 for cooling before being output. Then, the moisture is released by the gas-liquid separator 7, forming a complete cycle of heating and cooling until the temperature of the second adsorption tower 3 drops to the set temperature. No finished product gas is consumed, reducing costs. The entire process is essentially ventless, eliminating noise and pollution caused by sudden discharge of compressed gas. The switching is smooth, extending the service life of the adsorbent. This equipment basically achieves zero emissions and saves energy.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A zero-air-consumption pressurized gas drying system, comprising an air inlet pipe (10), characterized in that: One end of the intake pipe (10) is connected to a filter (6), the other end of the intake pipe (10) is connected to a fifteenth connecting pipe (25), the other end of the filter (6) is connected to a first connecting pipe (11), the other end of the first connecting pipe (11) is connected to a second connecting pipe (12), the other end of the second connecting pipe (12) is respectively connected to a fourth connecting pipe (14) and a fifth connecting pipe (15), a third connecting pipe (13) is arranged between the fourth connecting pipe (14) and the fifth connecting pipe (15), the surfaces of the fourth connecting pipe (14) and the fifth connecting pipe (15) are both connected to the third connecting pipe (13), the other end of the fourth connecting pipe (14) is connected to a first adsorption tower (1), the other end of the fifth connecting pipe (15) is connected to a second adsorption tower (3), the other ends of the first adsorption tower (1) and the second adsorption tower (3) are respectively connected to a ninth connecting pipe (19) and a tenth connecting pipe (20), a twelfth connecting pipe (22) is arranged between the ninth connecting pipe (19) and the tenth connecting pipe (20), both ends of the twelfth connecting pipe (22) are connected to the ninth connecting pipe (19) and the tenth connecting pipe (20) respectively, the other ends of the ninth connecting pipe (19) and the tenth connecting pipe (20) are connected to an eleventh connecting pipe (21), the surface of the twelfth connecting pipe (22) is connected to a thirteenth connecting pipe (23), the other end of the thirteenth connecting pipe (23) is connected to a cooler (8), the other end of the cooler (8) is connected to a fourteenth connecting pipe (24), the other end of the fourteenth connecting pipe (24) is connected to a gas-liquid separator (7), the other end of the gas-liquid separator (7) is connected to the fifteenth connecting pipe (25), the surface of the eleventh connecting pipe (21) is connected to a sixteenth connecting pipe (26), the other end of the sixteenth connecting pipe (26) is connected to a dust filter (9), the other end of the dust filter (9) is connected to a seventeenth connecting pipe (27), the surface of the third connecting pipe (13) is connected to a sixth connecting pipe (16), the other end of the sixth connecting pipe (16) is connected to a heater (5), the other end of the heater (5) is connected to a seventh connecting pipe (17), the other end of the seventh connecting pipe (17) is connected to a booster (4), the other end of the booster (4) is connected to an eighth connecting pipe (18), and the other end of the eighth connecting pipe (18) is connected to the seventeenth connecting pipe (27).

2. The zero-air-consumption pressurized gas drying system according to claim 1, wherein: Adsorption desiccants are arranged inside both the first adsorption tower (1) and the second adsorption tower (3).

3. The zero-air-consumption pressurized gas drying system according to claim 1, wherein: The cooler (8) is one of a water-cooled cooler and an air-cooled cooler.

4. The zero-air-consumption pressurized gas drying system according to claim 1, wherein: The heater (5) is one of an electric heater and a heat exchanger.

5. The zero-air-consumption pressurized gas drying system according to claim 1, wherein: The booster (4) is one of a piston type, a screw type, a scroll type, and a centrifugal compression type.

6. The zero-air-consumption pressurized gas drying system according to claim 1, wherein: An on-line analyzer (28) is arranged at the output end of the dust filter (9).

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