Intelligent and efficient hydrogen ammonia decomposition gas recovery and purification system

Abstract

The utility model discloses an intelligent efficient hydrogen ammonia decomposition gas recovery and purification system which comprises a shell, a recovery gas input port is formed in one side of the bottom of the shell, a booster fan is installed in the shell, the input end of the booster fan is communicated with the recovery gas input port, and the output end of the booster fan is communicated with the recovery gas input port. The output end of the booster fan is communicated with a coarse filtration water segregator, the output end of the coarse filtration water segregator is communicated with a dehydrator, the output end of the dehydrator is communicated with a fine desulfurization mixer, and deoxidation drying towers are arranged in the shell at equal intervals. The utility model relates to the technical field of hydrogen ammonia decomposition gas recovery and purification equipment, and solves the technical problems that in the prior art, when hydrogen ammonia decomposition gas recovery and purification are carried out on mixed gas discharged from silicon steel production, a large amount of water vapor is mixed in the mixed gas, so that the purity of the recovered and purified ammonia decomposition gas is reduced; the cyclic utilization rate of the hydrogen ammonia decomposition gas is relatively low, and the production cost of an enterprise is relatively high.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen and ammonia decomposition gas recovery and purification equipment, in particular to an intelligent and efficient hydrogen and ammonia decomposition gas recovery and purification system. Background Art

[0002] A gas mixture discharged during silicon steel production usually contains nitrogen, hydrogen, water and other components. If these gases are discharged directly into the atmosphere, it will not only pollute the environment, but also waste resources. Therefore, it is very necessary to recover and purify the hydrogen and ammonia decomposition gas, which can effectively reduce costs and increase efficiency for silicon steel production enterprises. In the existing technology, when the hydrogen and ammonia decomposition gas discharged from silicon steel production is recovered and purified, a large amount of water vapor is mixed in the mixed gas, resulting in a decrease in the purity of the recovered and purified ammonia decomposition gas, resulting in a low recycling rate of the hydrogen and ammonia decomposition gas, which makes the production cost of the enterprise higher. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides an intelligent and efficient hydrogen and ammonia decomposition gas recovery and purification system, which solves the problem in the prior art that, when the hydrogen and ammonia decomposition gas mixed gas discharged from silicon steel production is recovered and purified, a large amount of water vapor is mixed in the mixed gas, resulting in a decrease in the purity of the recovered and purified ammonia decomposition gas, resulting in a low recycling rate of the hydrogen and ammonia decomposition gas and a high production cost for the enterprise.

[0004] To achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: an intelligent and efficient hydrogen and ammonia decomposition gas recovery and purification system, comprising a shell, a recovery gas input port is arranged on one side of the bottom of the shell, a booster fan is installed inside the shell, the input end of the booster fan is connected to the recovery gas input port, the output end of the booster fan is connected to a coarse filter water separator, the output end of the coarse filter water separator is connected to a dehydrator, the output end of the dehydrator is connected to a fine desulfurization mixer, deoxygenation drying towers are equidistantly arranged inside the shell, a water-cooled valve device is installed at the input end of the deoxygenation drying tower, the fine desulfurization mixer is connected to the water-cooled valve device, and the inside of the shell A gas analysis device is installed in the shell, and a product gas filter mixer is arranged inside the gas analysis device. A drying tower output pipe is arranged at the output end of the deoxygenation drying tower, and the drying tower output pipe is connected to the input end of the product gas filter mixer. A buffer tank is arranged inside the shell, and the input end of the buffer tank is connected to a circulation pipe, and the circulation pipe is connected to the output end of the product gas filter mixer. A qualified gas supply port is arranged on one side of the gas analysis device, and the qualified gas supply port is connected to the circulation pipe. The bottom of the buffer tank is connected to the input end of the booster fan. A controller is installed on one side of the shell, and the controller is electrically connected to the booster fan and the water-cooled valve respectively.

[0005] Preferably, a high-purity nitrogen input port is provided on one side of the gas analysis device, and the high-purity nitrogen input port is connected with a drying tower output pipe, the drying tower output pipe is located inside the gas analysis device and is installed with a first oxygen analyzer, the drying tower output pipe is located inside the gas analysis device and is installed with a first hydrogen concentration meter, the circulation pipe is located inside the gas analysis device and is installed with a dew point meter, the circulation pipe is located inside the gas analysis device and is installed with a second oxygen analyzer, the circulation pipe is located inside the gas analysis device and is installed with a second hydrogen concentration meter, and the first oxygen analyzer, the first hydrogen concentration meter, the dew point meter, the second oxygen analyzer and the second hydrogen concentration meter are all electrically connected to the controller.

[0006] Preferably, a vortex flowmeter is installed at one end of the drying tower output pipe close to the deoxidation drying tower, and the vortex flowmeter is electrically connected to the controller.

[0007] Preferably, a high-position vent is provided on the top of the gas analysis device, a pressure transmitter is installed on the top of the buffer tank, and the pressure transmitter is electrically connected to the controller.

[0008] Preferably, the input and output ends of the buffer tank are both equipped with a first air intake valve, the first air intake valve located at the output end of the buffer tank is connected to the input end of the booster fan, the first air intake valve located at the input end of the buffer tank is connected to the circulation pipe, the qualified gas supply port, the high-purity nitrogen input port and the high-level vent port are respectively equipped with a second air intake valve, and the first air intake valve and the second air intake valve are both electrically connected to the controller.

[0009] The utility model provides an intelligent and efficient hydrogen and ammonia decomposition gas recovery and purification system. It has the following beneficial effects: the intelligent and efficient hydrogen and ammonia decomposition gas recovery and purification system, through the coordination between the shell, the recovery gas input port, the booster fan, the coarse filter water separator, the dehydrator, the fine desulfurization mixer, the water-cooled valve device, the deoxygenation drying tower, the gas analysis device, the product gas filter mixer, the qualified gas supply port, the circulation pipe, the buffer tank, the controller and the drying tower output pipe, before the recovery gas is input into the deoxygenation drying tower, the recovery gas is preliminarily dusted, dehydrated and desulfurized, so that the purity of the hydrogen and ammonia decomposition gas is improved to a certain extent, and it can provide high-quality and reliable basic raw materials for the subsequent deoxygenation and drying process, thereby improving the purity and recovery rate of the hydrogen and ammonia decomposition gas after recovery and purification, and improving the service life of the equipment, thereby ensuring the stability and consistency of the hydrogen and ammonia decomposition gas after recovery and purification, and improving the recycling rate of the hydrogen and ammonia decomposition gas, which helps to reduce the maintenance cost and production cost of the enterprise equipment.

[0010] Through the coordination among the gas analysis device, the circulation pipe of the qualified gas supply port, the buffer tank, the controller, the high-purity nitrogen inlet, the first oxygen analyzer, the first hydrogen concentration meter, the dew point meter, the second oxygen analyzer, the second hydrogen concentration meter and the drying tower output pipe, the control system of the hydrogen ammonia decomposition gas recovery and purification equipment can detect the relevant data of the hydrogen ammonia decomposition gas and compare it with the set data, automatically judge the subsequent operation of the purified hydrogen ammonia decomposition gas, improve the automation rate of the hydrogen ammonia decomposition gas recovery and purification equipment, and make the equipment control more intelligent, which can provide a strong guarantee for the long-term stable operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 for Figure 1 Schematic diagram of the structure of the gas analysis device, qualified gas supply port and high-purity nitrogen inlet.

[0013] In the figure: 1. shell, 2. recovered gas input port, 3. booster fan, 4. coarse filter water separator, 5. dehydrator, 6. fine desulfurization mixer, 7. water-cooled valve, 8. deoxygenation drying tower, 9. gas analysis device, 10. product gas filter mixer, 11. qualified gas supply port, 12. circulation pipe, 13. buffer tank, 14. controller, 15. high-purity nitrogen input port, 16. first oxygen analyzer, 17. first hydrogen concentration meter, 18. dew point meter, 19. second oxygen analyzer, 20. second hydrogen concentration meter, 21. vortex flowmeter, 22. high-level vent, 23. pressure transmitter, 24. first air inlet valve, 25. second air inlet valve, 26. drying tower output pipe. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] In the prior art, when the mixed gas discharged from silicon steel production is recovered and purified by hydrogen and ammonia decomposition gas, a large amount of water vapor is mixed in the mixed gas, resulting in a decrease in the purity of the recovered and purified ammonia decomposition gas, resulting in a low recycling rate of the hydrogen and ammonia decomposition gas and a high production cost for the enterprise.

[0016] In view of this, the utility model provides an intelligent and efficient hydrogen and ammonia decomposition gas recovery and purification system, which cooperates with a shell, a recovery gas input port, a booster fan, a coarse filter water separator, a water remover, a fine desulfurization mixer, a water-cooled valve, a deoxygenation drying tower, a gas analysis device, a product gas filter mixer, a qualified gas supply port, a circulation pipe, a buffer tank, a controller and a drying tower output pipe. Before the recovery gas is input into the deoxygenation drying tower, the recovery gas is subjected to preliminary dust removal, water removal and desulfurization treatment, so that the purity of the hydrogen and ammonia decomposition gas is improved to a certain extent, and high-quality and reliable basic raw materials are provided for the subsequent deoxygenation and drying process, thereby improving the purity and recovery rate of the hydrogen and ammonia decomposition gas after recovery and purification, ensuring the stability and consistency of the hydrogen and ammonia decomposition gas after recovery and purification, improving the recycling rate of the hydrogen and ammonia decomposition gas, and improving the service life of the equipment, thereby reducing the production cost of the enterprise.

[0017] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principles and processes, and no longer explains the electrical control.

[0018] Depend on Figure 1-2It can be seen that an intelligent and efficient hydrogen-ammonia decomposition gas recovery and purification system includes a shell 1, which is the shell structure of the hydrogen-ammonia decomposition gas recovery and purification equipment. A recovery gas input port 2 is arranged on one side of the bottom of the shell 1. The recovery gas input port 2 is used to input the recovery gas that has undergone preliminary dust removal, water removal and sulfur removal into the hydrogen-ammonia decomposition gas recovery and purification equipment. A booster fan 3 is installed inside the shell 1, and the input end of the booster fan 3 is connected to the recovery gas input port 2. The output end of the booster fan 3 is connected to a coarse filtration water separator 4, and the output end of the coarse filtration water separator 4 is connected to a dehydrator 5, and the output end of the dehydrator 5 is connected to a fine desulfurization mixer 6. Deoxygenation drying towers 8 are equidistantly arranged inside the shell 1, and a water-cooled valve device 7 is installed at the input end of the deoxygenation drying tower 8. The fine desulfurization mixer 6 is connected to the water-cooled valve device 7. The shell 1 is installed with a gas analysis Device 9, a product gas filter mixer 10 is arranged inside the gas analysis device 9, a drying tower output pipe 26 is arranged at the output end of the deoxygenation drying tower 8, and the drying tower output pipe 26 is connected to the input end of the product gas filter mixer 10, a buffer tank 13 is arranged inside the shell 1, and the input end of the buffer tank 13 is connected to the circulation pipe 12, and the circulation pipe 12 is connected to the output end of the product gas filter mixer 10, a qualified gas supply port 11 is arranged on one side of the gas analysis device 9, and the qualified gas supply port 11 is connected to the circulation pipe 12, and the bottom of the buffer tank 13 is connected to the input end of the booster fan 3, and a controller 14 is installed on one side of the shell 1, and the controller 14 is used to control various electrical components of the hydrogen and ammonia decomposition gas recovery and purification equipment and receive feedback data from the detection component, and the controller 14 is electrically connected to the booster fan 3 and the water-cooled valve device 7 respectively;

[0019] In the specific implementation process, it is worth pointing out that the shell 1 is the shell structure of the hydrogen ammonia decomposition gas recovery and purification equipment, and the recovery gas input port 2 is used to input the recovery gas into the hydrogen ammonia decomposition gas recovery and purification equipment. Through the cooperation between the shell 1, the recovery gas input port 2, the booster fan 3, the coarse filtration water separator 4, the dehydrator 5 and the fine desulfurization mixer 6, the dust removal, water removal and desulfurization treatment of the recovery gas are realized. Through the cooperation between the fine desulfurization mixer 6, the water-cooled valve device 7 and the deoxidation drying tower 8, the recovery gas that has completed the dust removal, water removal and desulfurization treatment is transported to the deoxidation drying tower 8 to adsorb oxygen, water, carbon dioxide and sulfide in the mixed gas, and the hydrogen-nitrogen mixed gas is not adsorbed and flows out of the deoxidation drying tower 8, and the water-cooled valve device 7 can The conveying channel of the mixed gas can be switched, so that after the deoxygenation drying tower 8 is saturated with adsorption, it can switch to another deoxygenation drying tower 8 to adsorb the recovered gas. The deoxygenation drying tower 8 with saturated adsorption starts to heat up for regeneration and activation treatment, and uses a small part of the recovered gas for backwashing and cooling. After the regeneration is completed, it is pressurized for standby use. After the other deoxygenation drying tower 8 is saturated with adsorption, it is switched back to the deoxygenation drying tower 8 that has completed the regeneration and activation treatment. By recycling two or more deoxygenation drying towers 8, the recovery and purification efficiency of hydrogen and ammonia decomposition gas is improved. Through the cooperation between the deoxygenation drying tower 8, the gas analysis device 9, the product gas filter mixer 10, the qualified gas supply port 11, the circulation pipe 12, the buffer tank 13 and the drying tower output pipe 26, the purified hydrogen is recovered. The hydrogen ammonia decomposition gas is transported to the gas analysis device 9 through the drying tower output pipe 26. The hydrogen concentration in the recovered and purified hydrogen ammonia decomposition gas is detected by the gas analysis equipment inside the gas analysis device 9. If the detected value meets the set requirements, the hydrogen ammonia decomposition gas can be output for use through the qualified gas supply port 11. If the detected value does not meet the set requirements, it is transported to the buffer tank 13 through the circulation pipe 12 for re-proportioning and circulation purification. Through the cooperation between the booster fan 3 and the buffer tank 13, the hydrogen ammonia decomposition gas that does not meet the standards in the buffer tank 13 re-enters the purification pipeline for purification. The controller 14 is used to control the various electrical components of the hydrogen ammonia decomposition gas recovery and purification equipment, and receive the feedback data of the detection component. The coordination among the gas input port 2, the booster fan 3, the coarse filter water separator 4, the dehydrator 5, the fine desulfurization mixer 6, the water-cooled valve device 7, the deoxygenation drying tower 8, the gas analysis device 9, the product gas filter mixer 10, the qualified gas supply port 11, the circulation pipe 12, the buffer tank 13, the controller 14 and the drying tower output pipe 26, before the recovered gas is input into the deoxygenation drying tower 8, the purity of the hydrogen-ammonia decomposition gas is improved to a certain extent by performing preliminary dust removal, water removal and desulfurization treatment on the recovered gas, so as to provide high-quality and reliable basic raw materials for the subsequent deoxygenation and drying process, thereby improving the purity and recovery rate of the recovered and purified hydrogen-ammonia decomposition gas, ensuring the stability and consistency of the recovered and purified hydrogen-ammonia decomposition gas, and improving the recycling rate of the hydrogen-ammonia decomposition gas.And improve the service life of the equipment and reduce the production cost of the enterprise. The specific models of the booster fan 3, the water-cooled valve device 7 and the controller 14 are not limited, and they can meet the use requirements;

[0020] Further, a high-purity nitrogen inlet 15 is provided on one side of the gas analysis device 9, and the high-purity nitrogen inlet 15 is used to input high-purity nitrogen into the hydrogen-ammonia decomposition gas recovery and purification device to re-proportion the hydrogen-ammonia decomposition gas. The high-purity nitrogen inlet 15 is connected to a drying tower output pipe 26, and the drying tower output pipe 26 is located inside the gas analysis device 9 and is installed with a first oxygen analyzer 16, and the drying tower output pipe 26 is located inside the gas analysis device 9 and is installed with a first hydrogen concentration meter 17, and the circulation pipe 12 is located inside the gas analysis device 9 and is installed with a dew point meter 18, and the circulation pipe 12 is located inside the gas analysis device 9 and is installed with a second oxygen analyzer 19, and the circulation pipe 12 is located inside the gas analysis device 9 and is installed with a second hydrogen concentration meter 20, and the first oxygen analyzer 16, the first hydrogen concentration meter 17, the dew point meter 18, the second oxygen analyzer 19, and the second hydrogen concentration meter 20 are all electrically connected to the controller 14;

[0021] In the specific implementation process, it is worth pointing out that, through the cooperation between the gas analysis device 9, the controller 14, the first oxygen analyzer 16, the first hydrogen concentration meter 17 and the drying tower output pipe 26, the purified hydrogen ammonia decomposition gas is detected for oxygen and hydrogen concentrations by the first oxygen analyzer 16 and the first hydrogen concentration meter 17 before entering the product gas filter mixer 10, and the detection signal is transmitted to the controller 14 in real time, so as to facilitate the subsequent operation of the controller 14. The high-purity nitrogen input port 15 is used to input high-purity nitrogen into the hydrogen ammonia decomposition gas recovery and purification device, and the hydrogen ammonia decomposition gas is re-proportioned and passed through the product gas filter mixer 10. , the coordination among the circulation pipe 12, the high-purity nitrogen input port 15 and the drying tower output pipe 26, according to the detection of the oxygen and hydrogen concentrations of the purified hydrogen-ammonia decomposition gas, after obtaining the relevant data, high-purity nitrogen is input into the transmission pipeline through the high-purity nitrogen input port 15, and the hydrogen-ammonia decomposition gas is fully mixed with the high-purity nitrogen to form a re-proportioning of the hydrogen-ammonia decomposition gas, through the coordination among the circulation pipe 12, the buffer tank 13, the controller 14, the dew point meter 18, the second oxygen analyzer 19 and the second hydrogen concentration meter 20, the oxygen and hydrogen concentrations of the hydrogen-ammonia decomposition gas that has been purified or re-proportioned are detected by the second oxygen analyzer 19 and the second hydrogen concentration meter 20, and the detection signal is The data are transmitted to the controller 14 in real time. The controller 14 compares the detection data with the set data, and judges the subsequent operation of the hydrogen ammonia decomposition gas. Through the coordination between the gas analysis device 9, the qualified gas supply port 11 circulation pipe 12, the buffer tank 13, the controller 14, the high-purity nitrogen input port 15, the first oxygen analyzer 16, the first hydrogen concentration meter 17, the dew point meter 18, the second oxygen analyzer 19, the second hydrogen concentration meter 20 and the drying tower output pipe 26, the oxygen and hydrogen concentrations of the purified hydrogen ammonia decomposition gas are detected. The controller 14 automatically compares the detection data with the set data. When the use standard is met, it can be directly discharged from the qualified gas supply port 11 for use. When the hydrogen-ammonia decomposition gas reaches the use standard, it is transported to the buffer tank 13, circulated and purified again, or the hydrogen-ammonia decomposition gas is re-proportioned until the hydrogen-ammonia decomposition gas reaches the use standard, so that the control system of the hydrogen-ammonia decomposition gas recovery and purification equipment can detect the relevant data of the hydrogen-ammonia decomposition gas and compare it with the set data, and automatically judge the subsequent operation of the purified hydrogen-ammonia decomposition gas, thereby improving the automation rate of the hydrogen-ammonia decomposition gas recovery and purification equipment and making the equipment control more intelligent. The specific models of the first oxygen analyzer 16, the first hydrogen concentration meter 17, the dew point meter 18, the second oxygen analyzer 19 and the second hydrogen concentration meter 20 are not limited, and they can meet the use requirements;

[0022] Furthermore, a vortex flowmeter 21 is installed at one end of the drying tower output pipe 26 close to the deoxidation drying tower 8, and the vortex flowmeter 21 is electrically connected to the controller 14;

[0023] In the specific implementation process, it is worth pointing out that the vortex flowmeter 21 is used to detect the flow rate of the hydrogen-ammonia decomposition gas output by the deoxidation and drying tower 8, and transmit the detection signal to the controller 14 in real time, so that the controller 14 can control the proportion flow rate of the high-purity nitrogen and improve the proportion accuracy of the hydrogen-ammonia decomposition gas. The specific model of the vortex flowmeter 21 is not limited, and it can meet the use requirements;

[0024] Furthermore, a high-level vent 22 is provided on the top of the gas analysis device 9, and a pressure transmitter 23 is installed on the top of the buffer tank 13, and the pressure transmitter 23 is electrically connected to the controller 14;

[0025] In the specific implementation process, it is worth pointing out that if the hydrogen-ammonia decomposition gas still does not meet the standard after the set cycle, the pipeline of the high-level vent 22 is opened to allow the hydrogen-ammonia decomposition gas to be emptied from a high position, and some unqualified gases are discharged from the system, thereby adjusting the gas composition in the system. Doing so can reduce the concentration of bad gases in the system and help restore the normal operation of the system. Through the coordination between the buffer tank 13, the controller 14, the high-level vent 22 and the pressure transmitter 23, the gas pressure in the buffer tank 13 can be measured. When the pressure of the buffer tank 13 is too high, the high-level vent 22 is opened to release a certain amount of gas in the pipeline to the outside, thereby ensuring the stable operation of the transmission pipeline. The specific model of the pressure transmitter 23 is not limited, and it can meet the use requirements.

[0026] Further, the input end and the output end of the buffer tank 13 are both equipped with a first air intake valve 24, the first air intake valve 24 located at the output end of the buffer tank 13 is connected to the input end of the booster fan 3, the first air intake valve 24 located at the input end of the buffer tank 13 is connected to the circulation pipe 12, the qualified gas supply port 11, the high-purity nitrogen gas input port 15 and the high-level vent port 22 are respectively equipped with a second air intake valve 25, and the first air intake valve 24 and the second air intake valve 25 are both electrically connected to the controller 14;

[0027] In the specific implementation process, it is worth pointing out that, through the cooperation among the booster fan 3, the circulation pipe 12, the buffer tank 13, the controller 14 and the first air inlet valve 24, the opening and closing of the input and output ends of the buffer tank 13 are controlled, so that the control system can control the transportation route of the recovered gas according to the pre-set, and through the cooperation among the qualified gas supply port 11, the controller 14, the high-purity nitrogen input port 15, the high-level vent port 22 and the second air inlet valve 25, the pipeline control of the qualified gas supply port 11, the high-purity nitrogen input port 15 and the high-level vent port 22 is realized, so that the control system can control and adjust the direct output, re-proportioning or high-level emptying of the hydrogen and ammonia decomposition gas according to the pre-set, thereby improving the automation rate of the hydrogen and ammonia decomposition gas recovery and purification equipment, wherein the specific models of the first air inlet valve 24 and the second air inlet valve 25 are not limited, and it is sufficient to meet the use requirements.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0029] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent and efficient hydrogen and ammonia decomposition gas recovery and purification system, comprising a housing (1), characterized in that: A recovered gas input port (2) is provided on one side of the bottom of the shell (1), a booster fan (3) is installed inside the shell (1), the input end of the booster fan (3) is connected to the recovered gas input port (2), the output end of the booster fan (3) is connected to a coarse filter water separator (4), the output end of the coarse filter water separator (4) is connected to a dewatering device (5), the output end of the dewatering device (5) is connected to a fine desulfurization mixer (6), deoxygenation drying towers (8) are equidistantly arranged inside the shell (1), the input end of the deoxygenation drying tower (8) is installed with a water-cooled valve device (7), the fine desulfurization mixer (6) is connected to the water-cooled valve device (7), a gas analysis device (9) is installed inside the shell (1), and a product gas filtration mixer ( 10), the output end of the deoxygenation drying tower (8) is provided with a drying tower output pipe (26), the drying tower output pipe (26) is connected to the input end of the product gas filter mixer (10), a buffer tank (13) is provided inside the shell (1), the input end of the buffer tank (13) is connected to a circulation pipe (12), the circulation pipe (12) is connected to the output end of the product gas filter mixer (10), a qualified gas supply port (11) is provided on one side of the gas analysis device (9), the qualified gas supply port (11) is connected to the circulation pipe (12), the bottom of the buffer tank (13) is connected to the input end of the booster fan (3), and a controller (14) is installed on one side of the shell (1), the controller (14) is electrically connected to the booster fan (3) and the water-cooled valve device (7) respectively.

2. According to claim 1, an intelligent and efficient hydrogen and ammonia decomposition gas recovery and purification system is characterized by: A high-purity nitrogen input port (15) is provided on one side of the gas analysis device (9), and the high-purity nitrogen input port (15) is connected to a drying tower output pipe (26); the drying tower output pipe (26) is located inside the gas analysis device (9) and is installed with a first oxygen analyzer (16); the drying tower output pipe (26) is located inside the gas analysis device (9) and is installed with a first hydrogen concentration meter (17); the circulation pipe (12) is located inside the gas analysis device (9) and is installed with a dew point meter (18); the circulation pipe (12) is located inside the gas analysis device (9) and is installed with a second oxygen analyzer (19); the circulation pipe (12) is located inside the gas analysis device (9) and is installed with a second hydrogen concentration meter (20); the first oxygen analyzer (16), the first hydrogen concentration meter (17), the dew point meter (18), the second oxygen analyzer (19) and the second hydrogen concentration meter (20) are all electrically connected to the controller (14).

3. The intelligent and efficient hydrogen and ammonia decomposition gas recovery and purification system according to claim 1 is characterized by: A vortex flowmeter (21) is installed at one end of the drying tower output pipe (26) close to the deoxidation drying tower (8), and the vortex flowmeter (21) is electrically connected to the controller (14).

4. The intelligent and efficient hydrogen and ammonia decomposition gas recovery and purification system according to claim 1 is characterized by: The top of the gas analysis device (9) is provided with a high-level vent (22), and the top of the buffer tank (13) is installed with a pressure transmitter (23), and the pressure transmitter (23) is electrically connected to the controller (14).

5. The intelligent and efficient hydrogen and ammonia decomposition gas recovery and purification system according to claim 4 is characterized by: The input end and the output end of the buffer tank (13) are both equipped with a first air intake valve (24); the first air intake valve (24) located at the output end of the buffer tank (13) is connected to the input end of the booster fan (3); the first air intake valve (24) located at the input end of the buffer tank (13) is connected to the circulation pipe (12); the qualified gas supply port (11), the high-purity nitrogen gas input port (15) and the high-position venting port (22) are respectively equipped with a second air intake valve (25); the first air intake valve (24) and the second air intake valve (25) are both electrically connected to the controller (14).

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