Tower body structure of adsorption tower for air separation plant

Abstract

The utility model discloses an adsorption tower body structure for an air separation plant, which relates to the field of adsorption tower structures and comprises an adsorption tower, an adsorbent is arranged in the adsorption tower, an air inlet pipe and an air outlet pipe are arranged on the surface of the adsorption tower, a support frame is arranged at the bottom of the adsorption tower, a high-temperature furnace is arranged in the support frame, and the high-temperature furnace is arranged in the high-temperature furnace. Low-heat partition plates are arranged at the top of the inner side of the high-temperature furnace, and high-heat partition plates are arranged at the bottom and side edges of the inner side of the high-temperature furnace. According to the adsorption tower body structure for the air separation equipment, the high-temperature furnace, the low-heat partition plate and the high-heat partition plate are arranged, the high-temperature furnace generates a large amount of heat, the low-heat partition plate is arranged at the top, so that the heat insulation capacity of the high-temperature furnace is relatively weak, and the heat can be transmitted into the adsorption tower through the adsorption tower to heat air in the adsorption tower; and when the air is heated and expanded, the air can penetrate through the adsorbent in an accelerated manner, so that the adsorption efficiency can be accelerated, and the air separation efficiency is indirectly improved.

Description

Technical Field

[0001] The utility model relates to the field of adsorption tower structures, in particular to an adsorption tower body structure for air separation equipment. Background Art

[0002] Air separation equipment uses air as raw material, converts air into liquid through compression cycle deep freezing, and then gradually separates and produces inert gases such as oxygen, nitrogen and argon from the liquid air through distillation. With the continuous development of science and technology, there are more and more types of air separation equipment. Usually, adsorption towers are used to adsorb air using activated carbon or molecular sieves inside. Due to the characteristics of the adsorbent, certain components will be adsorbed to the surface of the adsorbent.

[0003] When part of the components in the mixed gas are adsorbed onto the adsorbent, the unadsorbed components continue to flow upward. At a certain height, the adsorbent is saturated and can no longer adsorb gas molecules. At this time, the adsorbent needs to be desorbed. Common desorption methods include high temperature, pressure reduction and displacement. In the process of high temperature desorption, a large amount of heat will be generated that cannot be used, resulting in energy waste. Utility Model Content

[0004] The main purpose of the utility model is to provide an adsorption tower body structure for air separation equipment, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an adsorption tower body structure for an air separation device, comprising an adsorption tower, an adsorbent is arranged inside the adsorption tower, an air inlet pipe and an air outlet pipe are arranged on the surface of the adsorption tower, a support frame is arranged at the bottom of the adsorption tower, a high-temperature furnace is arranged inside the support frame, a low-heat partition is arranged on the top of the inner side of the high-temperature furnace, a high-heat partition is arranged on the inner bottom and side of the high-temperature furnace, and a lifting assembly is arranged inside the support frame for the longitudinal movement of the high-temperature furnace.

[0006] The lifting assembly comprises two connecting plates, the two connecting plates are fixed on both sides of the high temperature furnace, and two rotatable threaded rods are movably installed inside the supporting frame, and the threads of the threaded rods penetrate the surfaces of the connecting plates.

[0007] Gears are fixedly sleeved on the surfaces of the two threaded rods, and the two gears are connected by a toothed belt transmission. The bottom of the toothed belt is against the bottom of the support frame. A motor is fixedly installed on the upper surface of the support frame, and the output shaft of the motor is fixed on the surface of one of the threaded rods.

[0008] A protection frame is fixedly installed at the bottom of the inner side of the support frame, the gear and the toothed belt are located inside the protection frame, and the threaded rod movably penetrates the surface of the protection frame.

[0009] One side of the support frame is open and the surroundings are sealed, and a plurality of ventilation holes are provided on the opposite side of the open support frame.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. In the utility model, a high-temperature furnace, a low-heat partition and a high-heat partition are provided. The high-temperature furnace generates a large amount of heat. Since the top is a low-heat partition, its heat insulation ability is relatively weak. The heat will be transferred to the inside of the adsorption tower through the adsorption tower to heat the air inside the adsorption tower. The gas expands due to the heat, which will accelerate the gas to pass through the inside of the adsorbent. At this time, the efficiency of adsorption can be accelerated, and the efficiency of air separation is indirectly improved.

[0012] 2. In the utility model, a motor, an air vent and a threaded rod are provided, the motor is started, and the two threaded rods are rotated through the transmission of two gears and a toothed belt, so that the high-temperature furnace can move longitudinally under the driving action of the connecting plate, thereby changing the distance between the bottom of the high-temperature furnace and the adsorption tower, and the gas can circulate through the air vent and the open side to take away part of the heat, thereby preventing the adsorbent inside the adsorption tower from being affected by excessive temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of an adsorption tower body structure for an air separation device of the utility model;

[0014] Figure 2 This is a schematic diagram of the vent position of a tower body structure of an adsorption tower for an air separation device of the utility model;

[0015] Figure 3 This is a schematic diagram of the toothed belt position of a tower body structure of an adsorption tower for an air separation device of the utility model;

[0016] Figure 4 The utility model is a schematic diagram of the cross-sectional structure of a high-heat partition plate position of an adsorption tower body structure for an air separation device.

[0017] In the figure: 1. adsorption tower; 2. support frame; 3. high temperature furnace; 4. low heat partition; 5. high heat partition; 6. connecting plate; 7. threaded rod; 8. gear; 9. toothed belt; 10. motor; 11. protection frame; 12. vent. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] like Figure 1-4As shown, an adsorption tower body structure for an air separation device includes an adsorption tower 1, wherein an adsorbent is arranged inside the adsorption tower 1, and different adsorbents are selected according to the gases to be separated. An air inlet pipe and an air outlet pipe are arranged on the surface of the adsorption tower 1, and the air inlet pipe is located below the air outlet pipe, and the air inlet pipe and the air outlet pipe are respectively located on both sides of the adsorbent. A support frame 2 is arranged at the bottom of the adsorption tower 1, and a high-temperature furnace 3 is arranged inside the support frame 2. A low-heat partition 4 is arranged on the inner top of the high-temperature furnace 3, and a high-heat partition 5 is arranged on the inner bottom and side of the high-temperature furnace 3. A lifting component is arranged inside the support frame 2 for the longitudinal movement of the high-temperature furnace 3.

[0020] When it is necessary to desorb the adsorbent, the adsorbent inside the adsorption tower 1 is taken out and placed directly into the high-temperature furnace 3. At this time, the gas separation operation can still be performed by replacing the new adsorbent inside the adsorption tower 1. When the replaced adsorbent is desorbed, the high-temperature furnace 3 generates a large amount of heat. Since the top is a low-heat partition 4, its insulation ability is relatively weak. The heat will be transferred to the inside through the adsorption tower 1 to heat the air inside the adsorption tower 1. The gas expands due to the heat, which will accelerate the gas to pass through the inside of the adsorbent. At this time, the adsorption efficiency can be accelerated, and the air separation efficiency is indirectly improved. However, since the low-heat partition 4 itself still has specific insulation ability, it will not generate high heat and will not affect the normal adsorption of the adsorbent inside the adsorption tower 1. The high-heat partition 5 can prevent heat from dissipating from all sides to ensure the desorption reaction inside the high-temperature furnace 3.

[0021] The lifting assembly includes two connecting plates 6, and the two connecting plates 6 are fixed on both sides of the high-temperature furnace 3. Two rotatable threaded rods 7 are movably installed inside the support frame 2. The threaded rods 7 are threaded through the surface of the connecting plates 6. Gears 8 are fixedly sleeved on the surfaces of the two threaded rods 7. The two gears 8 are connected by a toothed belt 9. The bottom of the toothed belt 9 abuts against the bottom of the support frame 2, and the bottom of the gear 8 abuts against the bottom of the inner side of the support frame 2. A motor 10 is fixedly installed on the upper surface of the support frame 2, and the output shaft of the motor 10 is fixed on the surface of one of the threaded rods 7.

[0022] When the motor 10 is started, the corresponding threaded rod 7 rotates, so the gear 8 connected thereto also rotates. Due to the transmission effect of the toothed belt 9, the other gear 8 can be rotated. At this time, the two threaded rods 7 rotate, which has a limiting effect on the high-temperature furnace 3 and can prevent the high-temperature furnace 3 from rotating. Therefore, the high-temperature furnace 3 can move longitudinally under the driving action of the connecting plate 6, thereby changing the distance between the bottom of the high-temperature furnace 3 and the adsorption tower 1, preventing the adsorbent inside the adsorption tower 1 from being affected by excessive temperature.

[0023] A protective frame 11 is fixedly installed at the bottom of the inner side of the support frame 2, the gear 8 and the toothed belt 9 are located inside the protective frame 11, and the threaded rod 7 movably penetrates the surface of the protective frame 11. The protective frame 11 protects the meshing of the gear 8 and the toothed belt 9.

[0024] One side of the support frame 2 is open and the surroundings are sealed. A plurality of ventilation holes 12 are provided on the opposite side of the open support frame 2. If the temperature at the top of the high-temperature furnace 3 is too high, gas can circulate through the ventilation holes 12 and the open side to take away some heat.

[0025] It should be noted that the utility model is an adsorption tower body structure for air separation equipment. During use, when the adsorbent needs to be desorbed, the adsorbent inside the adsorption tower 1 is taken out and directly placed inside the high-temperature furnace 3. At this time, the adsorption tower 1 is replaced with a new adsorbent and the gas separation operation can still be performed. The motor 10 is started to rotate the corresponding threaded rod 7, so the gear 8 connected thereto will also rotate. Due to the transmission effect of the toothed belt 9, the other gear 8 can be rotated. At this time, the two threaded rods 7 rotate, which has a limiting effect on the high-temperature furnace 3, so the high-temperature furnace 3 can It moves longitudinally under the driving action of the connecting plate 6. During the desorption process of the replaced adsorbent, the high-temperature furnace 3 generates a large amount of heat. Since the top is a low-heat partition 4, its heat insulation ability is relatively weak, and the heat will be transferred to the inside through the adsorption tower 1 to heat the air inside the adsorption tower 1. The gas expands due to the heat, which will accelerate the gas to pass through the inside of the adsorbent. At this time, the adsorption efficiency can be accelerated, and the efficiency of air separation is indirectly improved. At the same time, the vent 12 and the open side are used for gas circulation to take away part of the heat to prevent the adsorbent inside the adsorption tower 1 from being affected by excessive temperature.

[0026] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An adsorption tower body structure for an air separation device, comprising an adsorption tower (1), wherein an adsorbent is arranged inside the adsorption tower (1), and an air inlet pipe and an air outlet pipe are arranged on the surface of the adsorption tower (1), characterized in that: A support frame (2) is arranged at the bottom of the adsorption tower (1), a high-temperature furnace (3) is arranged inside the support frame (2), a low-heat partition (4) is arranged at the top of the inner side of the high-temperature furnace (3), and a high-heat partition (5) is arranged at the inner bottom and side of the high-temperature furnace (3), and a lifting component is arranged inside the support frame (2) for longitudinal movement of the high-temperature furnace (3).

2. The adsorption tower body structure for an air separation plant according to claim 1, characterized in that: The lifting assembly comprises two connecting plates (6), the two connecting plates (6) being fixed on both sides of the high-temperature furnace (3), and two rotatable threaded rods (7) being movably mounted inside the support frame (2), wherein the threads of the threaded rods (7) penetrate the surfaces of the connecting plates (6).

3. The adsorption tower body structure for an air separation plant according to claim 2, characterized in that: Gears (8) are fixedly sleeved on the surfaces of the two threaded rods (7), and the two gears (8) are connected by a toothed belt (9). The bottom of the toothed belt (9) abuts against the bottom of the support frame (2). A motor (10) is fixedly mounted on the upper surface of the support frame (2), and the output shaft of the motor (10) is fixed on the surface of one of the threaded rods (7).

4. The adsorption tower body structure for an air separation plant according to claim 3, characterized in that: A protective frame (11) is fixedly mounted on the bottom of the inner side of the support frame (2); the gear (8) and the toothed belt (9) are located inside the protective frame (11); and the threaded rod (7) movably penetrates the surface of the protective frame (11).

5. The adsorption tower body structure for an air separation plant according to claim 1, characterized in that: One side of the support frame (2) is open and the surroundings are sealed, and a plurality of ventilation holes (12) are provided on the side opposite to the open side of the support frame (2).

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