A four-in-one TSA hydrogen drying tower

Abstract

The utility model relates to hydrogen drying technical field, and disclose a four in one TSA hydrogen drying tower, including upper drying tower section, middle drying tower section and lower drying tower section, upper drying tower section, middle drying tower section and lower drying tower section distribute from top to bottom in turn, and intercommunication, upper drying tower section is provided with hydrogen exit and entrance no.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen drying technology, specifically a four-in-one TSA hydrogen drying tower. Background Technology

[0002] Hydrogen is the lightest gas, colorless and odorless, sparingly soluble in water, and with a density only 1 / 14 that of air. As the first element in the periodic table, its molecule consists of two hydrogen atoms. It is chemically reactive, possessing flammability and reducing properties. Hydrogen is an ideal clean energy source and can be produced industrially through water electrolysis, fossil fuel reforming, and other processes. Drying hydrogen is a crucial step in its production, storage, and transportation.

[0003] Traditional hydrogen drying towers typically use multiple independent tanks to perform functions such as cooling, adsorption, heating, and regeneration. The pipeline connections between these tanks are complex, valve switching is frequent, the equipment occupies a large area, is expensive, and has a high failure rate. Furthermore, valve seals are prone to aging in high-temperature environments, leading to cross-contamination, which affects hydrogen purity and increases safety hazards. At the same time, the traditional distributed functional layout results in cumbersome operation and high maintenance costs, making it difficult to meet the demands of modern industry for efficient and integrated equipment. Summary of the Invention

[0004] In view of the shortcomings of the prior art, this utility model provides a four-in-one TSA hydrogen drying tower to solve the problems mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a four-in-one TSA hydrogen drying tower, comprising an upper drying tower section, a middle drying tower section, and a lower drying tower section, which are distributed sequentially from top to bottom and interconnected. A hydrogen inlet / outlet is provided at the end of the upper drying tower section furthest from the middle drying tower section, and a drain outlet is provided at the end of the lower drying tower section furthest from the middle drying tower section. An electric heating assembly is installed inside the upper drying tower section, a high-efficiency molecular sieve assembly is installed inside the middle drying tower section, and a tubular cooling assembly is installed inside the lower drying tower section. A hydrogen inlet / outlet, a hydrogen leak detection device, an upper interface of a level gauge, and a lower interface of a level gauge are sequentially arranged from top to bottom on the outer side of the middle drying tower section, below the tubular cooling assembly. A differential pressure level gauge is interconnected between the upper and lower interfaces of the level gauge.

[0006] Preferably, the upper drying tower section includes an upper drying tower body, and an upper drying tower pressure measuring port is provided on the outer side of the upper drying tower body; The intermediate drying tower section includes an intermediate drying tower body. From top to bottom, the outer side of the intermediate drying tower body is provided with a loading port, a temperature measuring port, and a discharge port. The included angle between the axes of the temperature measuring port and the discharge port is 90°. The high-efficiency molecular sieve assembly is located between the loading port and the discharge port.

[0007] Through the above technical solution, the upper drying tower provides installation space for the electric heating components, and the pressure measuring port of the upper drying tower can be connected to an external pressure monitoring device to monitor the hydrogen pressure inside the upper drying tower section in real time. When the pressure is abnormal, it can provide timely warning and ensure the safe operation of the equipment during the heating process.

[0008] Preferably, the electric heating assembly includes an electric heating tube, which is built into the interior of the upper drying tower section, and an electric heating interface is provided on the outside of the electric heating tube, which is located on the outside of the upper drying tower section.

[0009] With the above technical solution, the electric heating tube is built into the upper drying tower section, which can directly contact the flowing hydrogen gas, improve heating efficiency, and meet the heating requirements of hydrogen gas under desorption and regeneration conditions.

[0010] Preferably, the high-efficiency molecular sieve assembly includes a high-efficiency molecular sieve segment, which is built into the middle drying tower section, and a high-efficiency molecular sieve adsorbent is placed inside the high-efficiency molecular sieve segment.

[0011] Through the above technical solution, the high-efficiency molecular sieve segment provides a stable filling space for the high-efficiency molecular sieve adsorbent, enabling it to fully contact hydrogen and efficiently adsorb moisture from the hydrogen. The setting of the loading port and unloading port facilitates the addition and replacement of the high-efficiency molecular sieve adsorbent, and the coordination between the two and the position of the temperature measuring port in the drying tower can ensure the accuracy of temperature monitoring during adsorption and regeneration.

[0012] Preferably, the tubular cooling assembly includes a condenser tube, which is built inside the lower drying tower section. The two ends of the condenser tube are respectively interconnected with a cooling water outlet and a cooling water inlet, and the cooling water outlet is located above the cooling water inlet.

[0013] With the above technical solution, the condenser tube is built into the lower drying tower section, which can fully contact the flowing water-containing hydrogen gas. Cooling water flows in from the cooling water inlet and flows out from the cooling water outlet, which can form a continuous and stable cooling cycle, enhance the cooling effect on hydrogen gas, and promote the condensation of water in hydrogen gas into liquid water, thereby achieving the separation of water and hydrogen gas.

[0014] Preferably, both the upper and lower interfaces of the level gauge are interconnected with the lower drying tower section, and the differential pressure level gauge is located outside the lower drying tower section.

[0015] Through the above technical solution, the upper and lower interfaces of the level gauge are connected to different height positions of the lower drying tower section. The differential pressure level gauge can accurately monitor the liquid level of condensate in the lower drying tower section through the pressure difference between the two points, which makes it easy for operators to keep track of the water volume. When the liquid level reaches the set value, it is discharged through the drain outlet to ensure the continuous and stable operation of the equipment.

[0016] Compared with the prior art, this utility model provides a four-in-one TSA hydrogen drying tower, which has the following beneficial effects: This four-in-one TSA hydrogen drying tower integrates the upper, middle, and lower drying sections into a single drying tower, reducing pipeline connections and valve switching, lowering equipment complexity and failure rate. It also reduces hydrogen transmission losses between functional sections, improving drying efficiency. In adsorption mode, the heating section does not require power, avoiding unnecessary energy consumption. In desorption and regeneration mode, the heating section heats up rapidly, improving regeneration efficiency and reducing operating costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a schematic cross-sectional view of the present invention. Figure 4 This is a partial cross-sectional structural diagram of the upper drying tower section of this utility model.

[0018] The components include: 1. Upper drying tower section; 101. Upper drying tower body; 102. Upper drying tower pressure measuring port; 2. Middle drying tower section; 201. Middle drying tower body; 202. Loading port; 203. Discharge port; 204. Middle drying tower temperature measuring port; 3. Lower drying tower section; 4. Hydrogen inlet / outlet one; 5. Drain outlet; 7. Electric heating assembly; 701. Electric heating tube; 702. Electric heating interface; 8. High-efficiency molecular sieve assembly; 801. High-efficiency molecular sieve section; 802. High-efficiency molecular sieve adsorbent; 9. Tubular cooling assembly; 901. Cooling water outlet; 902. Condenser tube; 903. Cooling water inlet; 10. Hydrogen inlet / outlet two; 11. Lower interface of level gauge; 12. Upper interface of level gauge; 13. Differential pressure level gauge; 14. Hydrogen leakage detection device. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1: like Figure 1-4As shown, this utility model provides a four-in-one TSA hydrogen drying tower, including an upper drying tower section 1, a middle drying tower section 2, and a lower drying tower section 3. The upper drying tower section 1, the middle drying tower section 2, and the lower drying tower section 3 are distributed from top to bottom and are interconnected. The upper drying tower section 1 is provided with a hydrogen inlet / outlet 4 at the end away from the middle drying tower section 2, and the lower drying tower section 3 is provided with a drain outlet 5 at the end away from the middle drying tower section 2. An electric heating component 7 is provided inside the upper drying tower section 1, a high-efficiency molecular sieve component 8 is provided inside the middle drying tower section 2, and a tubular cooling component 9 is provided inside the lower drying tower section 3. On the outside of the middle drying tower section 2, below the tubular cooling component 9, a hydrogen inlet / outlet 10, a hydrogen leak detection device 14, an upper interface 12 of a level gauge, and a lower interface 11 of a level gauge are arranged from top to bottom. A differential pressure level gauge 13 is interconnected between the upper interface 12 of the level gauge and the lower interface 11 of the level gauge.

[0021] Specifically, the upper drying tower section 1 includes an upper drying tower body 101, with an upper drying tower pressure measuring port 102 located on the outer side of the upper drying tower body 101; the middle drying tower section 2 includes a middle drying tower body 201, with a feeding port 202, a middle drying tower temperature measuring port 204, and a discharge port 203 distributed sequentially from top to bottom on the outer side of the middle drying tower body 201. The included angle between the axes of the middle drying tower temperature measuring port 204 and the discharge port 203 is 90°, and the high-efficiency molecular sieve assembly 8 is located between the feeding port 202 and the discharge port 203. The advantage is that the upper drying tower body 101 provides installation space for the electric heating assembly 7, while the upper drying tower pressure measuring port 102 can be connected to an external pressure monitoring device to monitor the hydrogen pressure inside the upper drying tower section 1 in real time. When the pressure is abnormal, it can provide timely warnings, ensuring the safe operation of the equipment during the heating process.

[0022] Example 2: like Figure 2-4 As shown, as an improvement to the previous embodiment, hydrogen is heated.

[0023] Specifically, the electric heating assembly 7 includes an electric heating tube 701, which is built into the upper drying tower section 1. An electric heating interface 702 is provided on the outside of the electric heating tube 701, located on the outside of the upper drying tower section 1. The advantage is that the electric heating tube 701, built into the upper drying tower section 1, can directly contact the flowing hydrogen, improving heating efficiency and meeting the heating requirements for hydrogen under desorption and regeneration conditions.

[0024] Example 3: like Figure 2-4 As shown, as an improvement to the previous embodiment, this is done to adsorb moisture from hydrogen gas.

[0025] Specifically, the high-efficiency molecular sieve assembly 8 includes a high-efficiency molecular sieve section 801, which is built into the intermediate drying tower section 2. The high-efficiency molecular sieve section 801 contains a high-efficiency molecular sieve adsorbent 802. The advantages are that the high-efficiency molecular sieve section 801 provides a stable filling space for the high-efficiency molecular sieve adsorbent 802, allowing it to fully contact hydrogen and efficiently adsorb moisture from the hydrogen. The placement of the loading port 202 and unloading port 203 facilitates the addition and replacement of the high-efficiency molecular sieve adsorbent 802, and their alignment with the temperature measuring port 204 of the intermediate drying tower ensures accurate temperature monitoring during adsorption and regeneration.

[0026] Example 4: like Figure 2-4 As shown, as an improvement to the previous embodiment, hydrogen is cooled and condensed to produce condensate.

[0027] Specifically, the tubular cooling assembly 9 includes a condenser tube 902, which is built into the lower drying tower section 3. The two ends of the condenser tube 902 are interconnected with a cooling water outlet 901 and a cooling water inlet 903, with the cooling water outlet 901 located above the cooling water inlet 903. The advantage is that the condenser tube 902, built into the lower drying tower section 3, can fully contact the flowing water-containing hydrogen gas. Cooling water flows in from the cooling water inlet 903 and out from the cooling water outlet 901, forming a continuous and stable cooling cycle, enhancing the cooling effect on the hydrogen gas, and causing the water in the hydrogen gas to condense into liquid water, thus achieving the separation of water and hydrogen gas.

[0028] Example 5: like Figure 2-4 As shown, as an improvement to the previous embodiment, the condensate inside the lower drying tower section 3 is detected.

[0029] Specifically, both the upper interface 12 and the lower interface 11 of the level gauge are connected to the lower drying tower section 3, and the differential pressure level gauge 13 is located outside the lower drying tower section 3. The advantage is that the upper interface 12 and the lower interface 11 of the level gauge are connected to different height positions in the lower drying tower section 3, and the differential pressure level gauge 13 can accurately monitor the condensate level in the lower drying tower section 3 through the pressure difference between the two points. This allows operators to promptly monitor the water volume. When the level reaches the set value, it is discharged through the drain port 5, ensuring the continuous and stable operation of the equipment.

[0030] Working principle: Under adsorption conditions, hydrogen gas is introduced from hydrogen inlet and outlet 2 of 3. When the high-efficiency molecular sieve component 8 is in the process, the water in it is adsorbed by the high-efficiency molecular sieve adsorbent 802. The dried hydrogen gas flows out from hydrogen inlet and outlet 1 through the electric heating component 7 and the upper drying tower section 1. During desorption and regeneration, hydrogen enters through the hydrogen inlet and outlet, is heated by the electric heating tube 701 in the electric heating component 7, and then enters the molecular sieve adsorption section to desorb the adsorbed water. The hydrogen carrying the water enters the tubular cooling component 9 and is cooled by the cooling water. The water condenses and collects in the lower drying tower section. The differential pressure level gauge 13 monitors the liquid level through the lower interface 11 and the upper interface 12 of the level gauge. When the set height is reached, the liquid is discharged from the drain outlet 5. The dehydrated hydrogen flows out from the hydrogen inlet and outlet.

[0031] 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 four-in-one TSA hydrogen drying tower, comprising an upper drying tower section (1), a middle drying tower section (2), and a lower drying tower section (3), characterized in that: The upper drying tower section (1), the middle drying tower section (2), and the lower drying tower section (3) are arranged from top to bottom and are interconnected. The upper drying tower section (1) is provided with a hydrogen inlet / outlet (4) at the end away from the middle drying tower section (2), and the lower drying tower section (3) is provided with a drain outlet (5) at the end away from the middle drying tower section (2). The upper drying tower section (1) is provided with an electric heating component (7), the middle drying tower section (2) is provided with a high-efficiency molecular sieve component (8), and the lower drying tower section (3) is provided with a tubular cooling component (9). The middle drying tower section (2) is provided with a hydrogen inlet / outlet (2) and a hydrogen leakage detection device (14), a liquid level gauge upper interface (12), and a liquid level gauge lower interface (11) arranged from top to bottom below the tubular cooling component (9). The liquid level gauge upper interface (12) and the liquid level gauge lower interface (11) are interconnected by a differential pressure liquid level gauge (13).

2. The four-in-one TSA hydrogen drying tower according to claim 1, characterized in that: The upper drying tower section (1) includes an upper drying tower body (101), and an upper drying tower pressure measuring port (102) is provided on the outside of the upper drying tower body (101). The intermediate drying tower section (2) includes an intermediate drying tower body (201). The outer side of the intermediate drying tower body (201) is provided with a loading port (202), an intermediate drying tower temperature measuring port (204), and a discharge port (203) arranged sequentially from top to bottom. The included angle between the axes of the intermediate drying tower temperature measuring port (204) and the discharge port (203) is 90°. The high-efficiency molecular sieve assembly (8) is located between the loading port (202) and the discharge port (203).

3. The four-in-one TSA hydrogen drying tower according to claim 1, characterized in that: The electric heating assembly (7) includes an electric heating tube (701), which is built inside the upper drying tower section (1). An electric heating interface (702) is provided on the outside of the electric heating tube (701), which is located on the outside of the upper drying tower section (1).

4. The four-in-one TSA hydrogen drying tower according to claim 1, characterized in that: The high-efficiency molecular sieve assembly (8) includes a high-efficiency molecular sieve segment (801), which is built inside the intermediate drying tower segment (2), and a high-efficiency molecular sieve adsorbent (802) is placed inside the high-efficiency molecular sieve segment (801).

5. A four-in-one TSA hydrogen drying tower according to claim 1, characterized in that: The tubular cooling assembly (9) includes a condenser tube (902), which is built inside the lower drying tower section (3). The two ends of the condenser tube (902) are respectively connected to a cooling water outlet (901) and a cooling water inlet (903), and the cooling water outlet (901) is located above the cooling water inlet (903).

6. The four-in-one TSA hydrogen drying tower according to claim 1, characterized in that: The upper interface (12) and lower interface (11) of the level gauge are both connected to the lower drying tower section (3), and the differential pressure level gauge (13) is located outside the lower drying tower section (3).

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