Heat exchange tube with modularized heat conduction fins and adsorption column
By designing a heat exchange tube with modular thermal conduction fins in the adsorbent regeneration system, the problem of low heat conduction heating efficiency in the prior art is solved, and efficient adsorbent regeneration and the extension of the equipment service life are achieved.
Patent Information
- Application Number
- CN202421529995.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-01
AI Technical Summary
The existing heat exchange tube with modular thermal conduction fins has low heat conduction heating efficiency during the adsorbent regeneration process, which affects the adsorbent regeneration effect.
A heat exchange tube with modular thermal fins is designed, including the main body of the tube and multiple modular thermal fins. The fin design increases the thermal area and optimizes heat exchange through gaps and through holes to avoid welding stress and temperature difference stress, and improves the service life of the tube.
It significantly improves heat exchange efficiency, promotes the regeneration of adsorbents, extends the service life of the equipment, and reduces manufacturing costs.
Smart Images
Figure CN222799727U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tail gas treatment, in particular to a heat exchange tube and an adsorption column with modular heat-conducting fins. Background Art
[0002] In the production of polysilicon, the trichlorosilane synthesis process and the reduction process will produce a large amount of tail gas. It is estimated that for every 1kg of polysilicon product produced, 40kg of tail gas will be produced, and its main components are: hydrogen (H2), hydrogen chloride (HCL), dichlorosilane (SiH2CL2), trichlorosilane (SiHCL3), silicon tetrachloride (SiCL4), etc. Polysilicon tail gas is not only an effective raw material gas or an intermediate product, but also a substance that is extremely harmful to the environment. If it is only discharged after treatment, a large amount of waste liquid and waste gas will be generated, and a huge waste of resources will be caused. How to effectively separate and recycle these components and turn waste into treasure is a problem that must be solved in the production of polysilicon.
[0003] In the tail gas recovery system of the polysilicon device, the adsorption column is an extremely critical equipment, which is used to absorb the residual HCL and chlorosilane in the hydrogen to obtain high-purity hydrogen. After the adsorbent in the adsorption column has finished the adsorption work, in order to solve the cost problem, the adsorbent needs to be regenerated, and the adsorbent regeneration requires heating. The existing adsorbent heating generally uses a heat exchange tube with modular heat-conducting fins with a heat source to heat the adsorbent. However, the heat conduction heating efficiency of the heat exchange tube with modular heat-conducting fins is low, which affects the regeneration of the adsorbent.
[0004] Therefore, the prior art needs to be improved. Utility Model Content
[0005] The technical problem to be solved by the utility model is that the heat conduction heating efficiency of the heat exchange tube with modular heat-conducting fins is low, which affects the regeneration of the adsorbent. The utility model aims to provide a heat exchange tube with modular heat-conducting fins and an adsorption column, which adopt corresponding technical means, have the advantages of high heat exchange efficiency and low manufacturing cost, and improve the adsorption effect of the adsorbent.
[0006] The utility model is realized by the following technical solutions:
[0007] In a first aspect, the utility model provides a heat exchange tube with modular heat-conducting fins, comprising a tube body and a plurality of modular heat-conducting fins 1 sleeved on the tube body, the modular heat-conducting fins 1 comprising a fixed sleeve connected to the tube body, the fixed sleeve being provided with a plurality of second fin bodies distributed around it, and the fixed sleeve being provided with a second through hole between adjacent second fin bodies.
[0008] Furthermore, in the utility model, the above also includes a plurality of modular heat-conducting fins 2 sleeved on the tube body, the modular heat-conducting fins 2 include a sleeve and an outer ring tube sleeved outside the sleeve, the sleeve is provided with a plurality of first fin bodies distributed around it, the first fin bodies and the outer ring tube, the sleeve is provided with a first through hole between adjacent first fin bodies, and the sleeve is sleeved on the tube body.
[0009] Furthermore, in the present invention, the plurality of first fin bodies are evenly distributed.
[0010] Furthermore, in the present invention, the plurality of second fin bodies are evenly distributed.
[0011] In the second aspect, the utility model provides an adsorption column, which includes a heat exchange tube with modular heat-conducting fins, and also includes an adsorption column body. The tube body is installed inside the adsorption column body, and the outer spiral of the adsorption column body is provided with a heat exchange half-tube. The adsorption column body is provided with a temperature and pressure detection mechanism for detecting the internal ambient temperature and pressure.
[0012] Furthermore, in the utility model, a bottom hole is provided at the bottom of the adsorption column body, the tube body is sleeved with a reinforcing tube connected to the hole wall of the bottom hole, the end of the reinforcing tube is connected to the tube body, and a spacing is left between the tube body and the reinforcing tube.
[0013] Furthermore, in the utility model, a tube support is provided in the adsorption column body, and the tube support is connected to the tube body.
[0014] Furthermore, in the utility model, the top of the adsorption column body is provided with an adsorbent filling port and a product gas outlet, the bottom of the adsorption column body is provided with an adsorbent unloading port and a product gas inlet, and the bottom center of the adsorption column body is provided with a drain port.
[0015] Furthermore, in the present invention, the tube inlet of the heat exchange half tube is located at the lower side of the tube outlet of the heat exchange half tube.
[0016] Furthermore, in the present invention, the temperature and pressure detection mechanism includes a thermometer and a pressure gauge, and the thermometer and the pressure gauge are connected to the adsorption column body.
[0017] Compared with the prior art, the utility model has the following advantages and beneficial effects:
[0018] The present invention also provides a heat exchange tube with modular heat-conducting fins, wherein a plurality of modular heat-conducting fins 1 and modular heat-conducting fins 2 are installed on the tube body, and installation and disassembly are very convenient, which is conducive to maintenance and replacement. The first fin body, the outer ring tube, and the second fin body have large areas, which enhance the heat conductivity and promote the regeneration of the adsorbent. Furthermore, since the first fin body and the second fin body are not directly fixedly connected to the tube body of the heat exchange tube with modular heat-conducting fins, welding stress concentration damage caused by direct welding of the first fin body, the second fin body and the heat exchange tube with modular heat-conducting fins is avoided, as well as stress concentration damage caused by temperature difference during operation, which significantly improves the service life of the heat exchange tube with modular heat-conducting fins.
[0019] The present invention also provides an adsorption column, in which a heat exchange tube with modular heat-conducting fins is vertically installed inside the adsorption column body, and the tube body and the heat exchange half-tube provide heat sources from the inside and outside of the adsorption column body at the same time. The heat source heats up more quickly, thereby improving the heat exchange efficiency of the adsorbent. In addition, the first fin body, the outer ring tube and the second fin body greatly increase the heat exchange area, thereby further improving the heat exchange efficiency, thereby reducing the time for adsorbent regeneration and improving the regeneration efficiency. The adsorption column is not only used in the tail gas recovery system, but also can be used for waste gas purification in the pharmaceutical industry, or for removing SO2, nitrogen oxides and chlorine in industrial waste gas, improving the heat transfer efficiency of the adsorption equipment, improving the utilization rate of the adsorbent, and increasing the waste gas treatment capacity, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:
[0021] Figure 1 It is a structural schematic diagram of the adsorption column of the utility model;
[0022] Figure 2 It is a structural schematic diagram of a modular heat-conducting fin 1 of the utility model;
[0023] Figure 3 It is a structural schematic diagram of the modular heat-conducting fin 2 of the utility model;
[0024] Figure 4 This is a schematic diagram of the reinforced pipe structure of the utility model;
[0025] Figure 5 It is a schematic structural diagram of a heat exchange tube with modular heat-conducting fins of the utility model.
[0026] Markings and corresponding parts names in the accompanying drawings: 1-adsorbent discharge port, 2-thermometer, 3-heat exchange half tube, 4-tube body, 401-fixed sleeve, 402-second through hole, 403-second fin body, 5-tube outlet, 6-lifting ear, 7-adsorbent filling port, 8-product gas outlet, 9-tube support, 10-pressure gauge, 11-tube inlet, 12-adsorption column body, 1201-bottom hole, 13-product gas inlet, 14-reinforcement tube, 15-drain port, 16-support skirt, 17-sleeve, 1701-first through hole, 1702-first fin body, 18-outer ring tube. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.
[0028] The following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. 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. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0029] In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance. In the description of the embodiment of the utility model, "multiple" means at least 2. In the description of the embodiment of the utility model, it should also be noted that, unless otherwise clearly specified and limited, the terms "setting", "installation", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.
[0030] Example 1
[0031] This embodiment 1 provides a heat exchange tube with modular heat-conducting fins, including modular heat-conducting fins 1 and modular heat-conducting fins 2. The modular heat-conducting fins 1 include a tube body 4, and a sleeve 17 is sleeved on the tube body 4. A fixing sleeve 401 is also sleeved on the tube body 4. Figure 3As shown, six second fin bodies 403 are installed on the outer surface of the fixing sleeve 401 (other embodiments may be provided with other suitable numbers of second fin bodies 403), and the six second fin bodies 403 are evenly distributed around it. At the same time, six second through holes 402 are opened on the fixing sleeve 401, and each second through hole 402 is located between two adjacent second fin bodies 403.
[0032] like Figure 2 As shown, the modular heat-conducting fin 2 of this embodiment mainly consists of three parts: a sleeve 17, an outer ring tube 18 and a first fin body 1702. The sleeve 17, the outer ring tube 18 and the first fin body 1702 can all be made of heat-conducting and corrosion-resistant materials such as carbon steel and alloy steel.
[0033] Further, combined with Figure 2 As shown, six first fin bodies 1702 are welded on one section of the sleeve 17, and the six first fin bodies 1702 are evenly distributed around the sleeve 17. The first fin body 1702 is a rectangular sheet, and the length direction of the first fin body 1702 is parallel to the length direction of the sleeve 17.
[0034] And, combined with Figure 1 As shown, six first through holes 1701 are provided on the sleeve 17, and each first through hole 1701 is located between two first fin bodies 1702. The first through holes 1701 provided can save materials. At the same time, there is a gap between the sleeve 17, the inner wall of the fixed sleeve 401 and the outer wall of the tube body 4, and the gas therebetween can flow in and out through the first through holes 1701 and the second through holes 402, which is beneficial to heat exchange and is beneficial to the adsorbent for purifying tail gas.
[0035] The working principle of modular heat-conducting fin 1 is to put the sleeve 17 on the heat exchange tube with modular heat-conducting fins. When the heat exchange tube with modular heat-conducting fins provides heat, the heat is transferred to the sleeve 17, the outer ring tube 18 and the first fin body 1702. The first fin body 1702 and the outer ring tube 18 have a larger area, which enhances the heat conductivity, promotes the regeneration of the adsorbent, and is beneficial to the exhaust gas treatment.
[0036] Further, combined with Figure 5 As shown, on the tube body 4, the sleeve 17 and the fixed sleeve 401 are installed at intervals. For example, one or two fixed sleeves 401 are installed between the two sleeves 17. The sleeve 17 and the fixed sleeve 401 are used in combination to facilitate the gas to enter the interior of the outer ring tube 18 for heat exchange, and at the same time facilitate the outer ring tube 18 to support the heat exchange tube body 4 with modular heat-conducting fins, so that there is no interference between the heat exchange tube bodies 4 with modular heat-conducting fins.
[0037] The working principle of the heat exchange tube with modular heat-conducting fins in this embodiment is as follows:
[0038] The sleeve 17 and the fixed sleeve 401 are fixedly installed on the tube body 4, and a modular installation method is adopted, which is very convenient for installation and disassembly. The heat exchange tube with modular heat-conducting fins in this embodiment relies on the first fin body 1702, the second fin body 403 and the outer ring tube 18 for heat exchange, and the heat dissipation area is large, the heat conduction capacity is enhanced, and the regeneration of the adsorbent is promoted. Since the first fin body 1702 and the second fin body 403 are not directly fixedly connected to the tube body 4 of the heat exchange tube with modular heat-conducting fins, the welding stress concentration damage caused by the direct welding of the first fin body 1702, the second fin body 403 and the heat exchange tube with modular heat-conducting fins, and the stress concentration damage caused by the temperature difference during operation are avoided, which significantly improves the service life of the heat exchange tube with modular heat-conducting fins. Since the welding stress and temperature difference stress are eliminated, the wall thickness of the tube body 4 can be reduced, the material procurement cost of the tube body 4 can be reduced, and the manufacturing cost of the adsorption column is greatly reduced. The manufacturing difficulty of welding the first fin body 1702 and the sleeve 17 is much lower than directly welding the fin to the outer surface of the tube body 4, which reduces the manufacturing cost of the heat exchange tube with modular heat-conducting fins, and thus greatly reduces the manufacturing cost of the adsorption column.
[0039] Example 2
[0040] This embodiment provides an adsorption column, which uses the heat exchange tube with modular heat-conducting fins in Embodiment 2. The adsorption column is the main place for exhaust gas purification. Figure 1 As shown, it is mainly composed of four parts: an adsorption column body 12, a heat exchange half tube 3, a fin coil 12, and a temperature and pressure detection mechanism.
[0041] Further, combined with Figure 1 As shown, the adsorption column body 12 is in the shape of a tower tank, and the adsorption column body 12 is placed vertically. A support skirt 16 is installed at the bottom of the adsorption column body 12 and is lifted off the ground. The adsorption column body 12 is filled with an adsorbent (such as activated carbon, molecular sieve, activated alumina, silica gel, etc.) and tail gas. Figure 1 As shown, the heat exchange tube with modular heat-conducting fins is vertically installed inside the adsorption column body 12, as shown in FIG. Figure 4 As shown, the tube body 4 of the heat exchange tube with modular heat-conducting fins passes through the bottom hole 1201 at the bottom of the adsorption column body 12. The reinforcement tube 14 is in the form of a tube sleeve, and the reinforcement tube 14 is sleeved on the outside of the tube body 4. The bottom surface of the reinforcement tube 14 is fixedly connected to the tube body 4, and the outer wall of the reinforcement tube 14 is welded and fixed to the hole wall of the bottom hole 1201. The bottom end of the reinforcement tube 14 extends out from the bottom of the adsorption column body 12, and a gap is left between the reinforcement tube 14 and the tube body 4. The reinforcement tube 14 avoids direct contact between the adsorption column body 12 and the tube body 4, greatly reduces the temperature difference stress at the connection between the adsorption column body 12 and the tube body 4, and improves the safety and service life of the equipment.
[0042] The fluid with the heat source is transported through the tube body 4, and the heat is released in the adsorption column body 12. The heat is transferred to the heat-conducting gas, and then transferred to the adsorbent through the heat-conducting gas, so as to promote the regeneration of the adsorbent.
[0043] It should be noted that if Figure 1 As shown, the number of the tube bodies 4 is six, twelve, eighteen or more, and they are evenly distributed around the center of the adsorption column body 12 .
[0044] It should be noted that if Figure 1 A horizontal tube support 9 is installed inside the adsorption column body 12. One tube support 9 is close to the top of the adsorption column body 12. The tube support 9 is connected to the tube body 4. The tube support 9 is used to keep the heat exchange tube body 4 with modular heat-conducting fins in a vertical state.
[0045] Furthermore, the temperature and pressure detection mechanism includes a thermometer 2 and a pressure gauge 10, which are used to detect the temperature and pressure in the adsorption column body 12. The thermometer 2 is fixedly mounted on the left outer wall of the adsorption column body 12, and the temperature monitoring probe is deeply inserted into the adsorption column body 12. The pressure gauge 10 is mounted on the right outer wall of the adsorption column body 12, and the probe of the pressure gauge 10 is deeply inserted into the adsorption column body 12. Through the thermometer 2 and the pressure gauge 10, the reaction temperature and pressure in the adsorption column body 12 can be known, which is convenient for control.
[0046] In some implementations of this embodiment, the heat exchange half tube 3 is spirally arranged around the outer wall of the adsorption column body 12, and the heat exchange half tube 3 has a tube inlet 11 and a tube outlet 5. The tube inlet 11 is located below the tube outlet 5. A fluid with a heat source or a cold source is introduced from the tube inlet 11, and the fluid heats the internal environment of the adsorption column body 12.
[0047] In some implementations of the present embodiment, the top of the adsorption column body 12 is provided with an adsorbent filling port 7 and a product gas outlet 8, and the adsorbent is added through the adsorbent filling port 7, and the purified hydrogen is collected through the product gas outlet 8. The bottom of the adsorption column body 12 is provided with an adsorbent discharge port 1 and a product gas inlet 13, and the adsorbent discharge port 1 is used to pour out the adsorbent after use, which is convenient for replacement, and the product gas inlet 13 is connected to the tail gas delivery pipeline, and the tail gas to be purified can be sent into the interior of the adsorption column body 12. The bottom of the adsorption column body 12 is a concave arc surface, and a drain port 15 is provided at the center of the bottom. The drain port 15 is located at the lowest point of the concave arc surface, which is convenient for discharging all the residual adsorbent and other impurities. The drain port 15, the product gas inlet 13, the product gas outlet 8, etc. are all equipped with valves.
[0048] Furthermore, a lifting ear 6 is installed on each of the left and right sides of the adsorption column body 12 , and the adsorption column body 12 can be easily moved through the lifting ear 6 .
[0049] The working principle of the adsorption column of this embodiment is as follows:
[0050] The tail gas to be purified is sent into the adsorption column body 12 through the product gas inlet 13, and the fluid is sent into the heat exchange half tube 3 and the tube body 4. The fluid is transported from bottom to top in the heat exchange half tube 3 and the tube body 4. The fluid exchanges heat with the tail gas through the wall of the adsorption column body 12, the first fin body 1702, the second fin body 403, and the outer ring tube 18, and the tail gas transfers heat to the adsorbent, thereby achieving the heating of the adsorbent. After adsorption, hydrogen is recovered through the product gas outlet 8, and when the adsorbent is regenerated, it needs to be heated first and then cooled. The temperature of the heated adsorbent must reach the regeneration temperature, and the temperature of the cooled adsorbent is at or below normal temperature. During regeneration, the harmful gas discharged by the adsorbent is recovered by backblowing. During adsorption, the tail gas enters the adsorption column body 12, and the harmful substances are adsorbed by the adsorbent. The hydrogen rises and is recovered and discharged through the product gas outlet 8, and the hydrogen is collected for the production of polysilicon. The modular heat-conducting fins are installed on the outer surface of the tube body 4. The heat exchange performance of the first fin body 1702, the second fin body 403, and the outer ring tube 18 is much higher than that of the light tube, thus having a better use effect.
[0051] In summary, the utility model provides a heat exchange tube with modular heat-conducting fins, including a tube body 4 and a plurality of modular heat-conducting fins 1 sleeved on the tube body 4, the modular heat-conducting fins 1 including a fixed sleeve 401 connected to the tube body 4, the fixed sleeve 401 is provided with a plurality of second fin bodies 403 distributed around it, and the fixed sleeve 401 is provided with a second through hole 402 between adjacent second fin bodies 403. It also includes a plurality of modular heat-conducting fins 2 sleeved on the tube body 4, the modular heat-conducting fins 2 including a sleeve 17 and an outer ring tube 18 sleeved outside the sleeve 17, the sleeve 17 is provided with a plurality of first fin bodies 1702 distributed around it, the first fin body 1702 and the outer ring tube 18, the sleeve 17 is provided with a first through hole 1701 between adjacent first fin bodies 1702, and the sleeve 17 is sleeved on the tube body 4. The plurality of first fin bodies 1702 are evenly distributed. The plurality of second fin bodies 403 are evenly distributed. The utility model also provides an adsorption column, which includes a heat exchange tube with modular heat-conducting fins, and also includes an adsorption column body 12, the tube body 4 is installed inside the adsorption column body 12, the outer spiral of the adsorption column body 12 is provided with a heat exchange half tube 3, and the adsorption column body 12 is provided with a temperature and pressure detection mechanism for detecting the internal environmental temperature and pressure. The bottom of the adsorption column body 12 is provided with a bottom hole 1201, the tube body 4 is sleeved with a reinforcement tube 14 connected to the hole wall of the bottom hole 1201, the end of the reinforcement tube 14 is connected to the tube body 4, and a spacing is left between the tube body 4 and the reinforcement tube 14. A tube support 9 is provided in the adsorption column body 12, and the tube support 9 is connected to the tube body 4. The top of the adsorption column body 12 is provided with an adsorbent filling port 7 and a product gas outlet 8, the bottom of the adsorption column body 12 is provided with an adsorbent discharge port 1 and a product gas inlet 13, and the bottom center of the adsorption column body 12 is provided with a drain port 15. The tube inlet 11 of the heat exchange half tube 3 is located at the lower side of the tube outlet 5 of the heat exchange half tube 3. The temperature and pressure detection mechanism includes a thermometer 2 and a pressure gauge 10, and the thermometer 2 and the pressure gauge 10 are connected to the adsorption column body 12. Therefore, the heat exchange tube and adsorption column with modular heat-conducting fins of the present invention have the advantages of high heat exchange efficiency, improve the adsorption effect of the adsorbent, and have a long service life.
[0052] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.
Claims
1. A heat exchange tube with modular heat-conducting fins, characterized in that: The invention comprises a tube body (4) and a plurality of modular heat-conducting fins (1) sleeved on the tube body (4), wherein the modular heat-conducting fins (1) comprise a fixing sleeve (401) connected to the tube body (4), the fixing sleeve (401) being provided with a plurality of second fin bodies (403) distributed around the fixing sleeve (401), and the fixing sleeve (401) being provided with second through holes (402) between adjacent second fin bodies (403).
2. The heat exchange tube with modular heat-conducting fins according to claim 1, characterized in that: It also includes a plurality of modular heat-conducting fins 2 sleeved on the tube body (4), the modular heat-conducting fins 2 including a sleeve (17) and an outer ring tube (18) sleeved outside the sleeve (17), the sleeve (17) being provided with a plurality of first fin bodies (1702) distributed around it, the first fin bodies (1702) and the outer ring tube (18), the sleeve (17) being provided with a first through hole (1701) between adjacent first fin bodies (1702), and the sleeve (17) being sleeved on the tube body (4).
3. The heat exchange tube with modular heat-conducting fins according to claim 2, characterized in that: The plurality of first fin bodies (1702) are evenly distributed.
4. The heat exchange tube with modular heat-conducting fins according to claim 2, characterized in that: The plurality of second fin bodies (403) are evenly distributed.
5. An adsorption column, characterized in that: It comprises the heat exchange tube with modular heat-conducting fins as claimed in claim 1, and also comprises an adsorption column body (12), wherein the tube body (4) is installed inside the adsorption column body (12), the outer spiral of the adsorption column body (12) is provided with a heat exchange half tube (3), and the adsorption column body (12) is provided with a temperature and pressure detection mechanism for detecting the internal ambient temperature and pressure.
6. The adsorption column according to claim 5, characterized in that: A bottom hole (1201) is provided at the bottom of the adsorption column body (12); the tube body (4) is sleeved with a reinforcing tube (14) connected to the hole wall of the bottom hole (1201); the end of the reinforcing tube (14) is connected to the tube body (4); and a spacing is left between the tube body (4) and the reinforcing tube (14).
7. The adsorption column according to claim 5, characterized in that: A tube support (9) is provided inside the adsorption column body (12), and the tube support (9) is connected to the tube body (4).
8. The adsorption column according to claim 5, characterized in that: The top of the adsorption column body (12) is provided with an adsorbent filling port (7) and a product gas outlet (8), the bottom of the adsorption column body (12) is provided with an adsorbent discharge port (1) and a product gas inlet (13), and the bottom center of the adsorption column body (12) is provided with a drain port (15).
9. The adsorption column according to claim 5, characterized in that: The tube inlet (11) of the heat exchange half tube (3) is located at the lower side of the tube outlet (5) of the heat exchange half tube (3).
10. The adsorption column according to claim 5, characterized in that: The temperature and pressure detection mechanism comprises a thermometer (2) and a pressure gauge (10), and the thermometer (2) and the pressure gauge (10) are connected to the adsorption column body (12).