Temperature swing adsorption hydrogen purification device

Abstract

The utility model belongs to the technical field of chemical equipment, and provides a temperature swing adsorption hydrogen purification device which comprises an adsorption tower and further comprises a heat conduction sleeve, a temperature swing adsorption device and a temperature swing adsorption device, the heat conduction pipe is arranged in the heat conduction sleeve; the outlet end of the first guide pipe communicates with the inlet end of the heat conduction pipe; the inlet end of the second guide pipe communicates with the outlet end of the heat conduction pipe; the inlet end of the first branch pipe is communicated with the outlet end of the second guide pipe, and the outlet end is communicated with the inlet end of the first guide pipe; the inlet end of the second branch pipe is communicated with the outlet end of the second conduit, and the outlet end is communicated with the inlet end of the first conduit; the first control valve is arranged on the first branch pipe; the second control valve is arranged on the second branch pipe; the heating device is used for heating the first branch pipe; the cooling device is used for heating the second branch pipe; and the circulating pump is arranged on the first guide pipe and / or the second guide pipe. The temperature swing adsorption hydrogen purification device provided by the utility model is convenient for cooling and heating the adsorption tower.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, in particular to a temperature-variable adsorption hydrogen purification device. Background Art

[0002] The temperature swing adsorption hydrogen purification device is used to purify hydrogen to convert industrial hydrogen into fuel hydrogen. It includes an adsorption tower provided with an adsorbent, a heating component for heating the adsorption tower, and a cooling component for cooling the adsorption tower.

[0003] In the prior art, a utility model patent with authorization notification number CN215428105U provides a temperature-variable adsorption hydrogen purification device, including: at least two sets of parallel hydrogen purification components; the hydrogen purification components include an adsorption tower; the adsorption tower is filled with an adsorbent for purifying industrial hydrogen so that the industrial hydrogen concentration reaches the fuel hydrogen standard; a heating system, surrounded by the outer wall of the adsorption tower, the heating system is used to increase the temperature of the adsorption tower to regenerate the adsorbent; a cooling system, connected to the heating system, is used to reduce the temperature of the adsorption tower after regeneration so that the adsorbent in the adsorption tower can be adsorbed.

[0004] However, the above-mentioned temperature-variable adsorption hydrogen purification device has the disadvantage that the wind hood of its cooling system is surrounded by the outer wall of the heating system, resulting in that when cooling the adsorption tower, heat needs to be transferred from the adsorption tower to the heating system, and then from the heating system to the wind hood, which reduces the cooling efficiency. At the same time, during the heating process of the adsorption tower, part of the heat of the heating system will be transferred to the cooling system, resulting in heat waste. Utility Model Content

[0005] In view of the defects in the prior art, the purpose of the utility model is to provide a temperature-swing adsorption hydrogen purification device to solve or alleviate the above-mentioned technical problems existing in the prior art.

[0006] In order to achieve the above-mentioned object, the utility model provides a temperature-swing adsorption hydrogen purification device, comprising an adsorption tower provided with an adsorbent, and also comprising:

[0007] A heat-conducting sleeve, which is arranged outside the adsorption tower;

[0008] A heat-conducting pipe, which is arranged in the heat-conducting sleeve;

[0009] A first conduit, the outlet end of which is connected to the inlet end of the heat conducting pipe;

[0010] A second conduit, the inlet end of which is connected to the outlet end of the heat conducting pipe;

[0011] a first branch pipe, the inlet end of which is connected to the outlet end of the second conduit, and the outlet end of which is connected to the inlet end of the first conduit;

[0012] a second branch pipe, the inlet end of which is connected to the outlet end of the second conduit, and the outlet end of which is connected to the inlet end of the first conduit;

[0013] a first control valve, which is arranged on the first branch pipe;

[0014] a second control valve, which is arranged on the second branch pipe;

[0015] A heating device, used for heating the heat-conducting medium in the first branch pipe;

[0016] a cooling device, which is used to heat the heat-conducting medium in the second branch pipe; and

[0017] A circulation pump is arranged on the first conduit and / or the second conduit.

[0018] Furthermore, a heat-insulating sleeve is disposed on the outer periphery of the heat-conducting sleeve.

[0019] Furthermore, two first control valves are provided, and the two first control valves are respectively provided at two ends of the first branch pipe;

[0020] Two second control valves are provided, and the two second control valves are respectively provided at two ends of the second branch pipe.

[0021] Furthermore, the heat-conducting sleeve comprises two half shells which are arranged opposite to each other, and the heat-conducting pipe is arranged in the half shells in a serpentine shape.

[0022] Furthermore, the heating device is an electric heating device, and the first branch pipe is wound around the heating device.

[0023] Furthermore, the cooling device comprises a cooling jacket and a cooling pipe arranged in the cooling jacket, a cooling medium circulates in the cooling pipe, and the second branch pipe is wound around the cooling jacket.

[0024] Beneficial effects of the utility model:

[0025] The temperature-swing adsorption hydrogen purification device provided by the utility model has a simple structure and a reasonable design. By closing the second control valve and the cooling device, opening the first control valve, the heating device and the circulating pump, under the action of the circulating pump, the heat-conducting medium circulates in the heat-conducting pipe, the first conduit, the first branch pipe and the second conduit. In the process of the heat-conducting medium flowing in the first branch pipe, under the action of the heating device, the heating device heats the heat-conducting medium in the first branch pipe, and the heated heat-conducting medium enters the heat-conducting pipe, thereby achieving the purpose of heating the adsorption tower; similarly, by closing the first control valve and the heating device, opening the second control valve, the cooling device and the circulating pump, under the action of the circulating pump, the heat-conducting medium circulates in the heat-conducting pipe, the first conduit, the second branch pipe and the second conduit. When the heat-conducting medium passes through the cooling device, under the action of the cooling device, the cooling device cools down the heat-conducting medium in the second branch pipe, and the cooled heat-conducting medium enters the heat-conducting pipe, thereby achieving the purpose of cooling the adsorption tower, thereby achieving the purpose of directly heating and cooling the adsorption tower, and improving the efficiency of heating and cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0027] Figure 1 A structural view of a temperature swing adsorption hydrogen purification device provided by an embodiment of the utility model;

[0028] Figure 2 A combined three-dimensional view of a heat-conducting sleeve and a heat-conducting pipe of a temperature swing adsorption hydrogen purification device provided by another embodiment of the utility model;

[0029] Figure 3 A three-dimensional view of the cooling device of the temperature-swing adsorption hydrogen purification device provided by the utility model.

[0030] Reference numerals:

[0031] 10. Adsorption tower; 20. Heat transfer jacket; 21. Half shell; 30. Heat transfer pipe; 41. First conduit; 42. Second conduit; 43. First branch pipe; 44. Second branch pipe; 45. First control valve; 46. Second control valve; 50. Heating device; 61. Cooling jacket; 62. Cooling pipe; 70. Circulation pump; 80. Insulation jacket. DETAILED DESCRIPTION

[0032] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0033] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0034] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, the meaning of "plurality" is more than two, unless otherwise clearly and specifically limited.

[0036] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 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. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0037] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] like Figure 1-3As shown, the utility model provides a temperature-variable adsorption hydrogen purification device, including an adsorption tower 10 provided with an adsorbent, and also including a heat-conducting sleeve 20, a heat-conducting pipe 30, a first conduit 41, a second conduit 42, a first branch pipe 43, a second branch pipe 44, a first control valve 45, a second control valve 46, a heating device 50, a cooling device and a circulating pump 70.

[0039] The heat-conducting sleeve 20 is sleeved outside the adsorption tower 10. The heat-conducting pipe 30 is installed in the heat-conducting sleeve 20. The outlet end of the first conduit 41 is connected to the inlet end of the heat-conducting pipe 30. The inlet end of the second conduit 42 is connected to the outlet end of the heat-conducting pipe 30. The inlet end of the first branch pipe 43 is connected to the outlet end of the second conduit 42, and the outlet end is connected to the inlet end of the first conduit 41. The inlet end of the second branch pipe 44 is connected to the outlet end of the second conduit 42, and the outlet end is connected to the inlet end of the first conduit 41. The first control valve 45 is arranged on the first branch pipe 43. Preferably, two first control valves 45 are arranged, and the two first control valves 45 are respectively arranged at both ends of the first branch pipe 43, so as to prevent the heat of the heat-conducting medium in the first branch pipe 43 from being transferred to the heat-conducting medium in the second branch pipe 44 during the cooling process, thereby causing the fluid temperature in the second branch pipe 44 to rise, thereby affecting the cooling efficiency. The second control valve 46 is arranged on the second branch pipe 44. Preferably, two second control valves 46 are provided, and the two second control valves 46 are respectively provided at both ends of the second branch pipe 44 to prevent the heat of the heat-conducting medium in the first branch pipe 43 from being transferred to the second branch pipe 44 during heating, thereby causing the temperature of the heat-conducting medium in the first branch pipe 43 to decrease, thereby affecting the heating efficiency.

[0040] The heating device 50 is used to heat the heat-conducting medium in the first branch pipe 43. In this embodiment, the heating device 50 is an electric heating device 50, and the first branch pipe 43 is wound around the heating device 50, so as to achieve the purpose of heating the heat-conducting medium in the first branch pipe 43.

[0041] The cooling device is used to heat the heat-conducting medium in the second branch pipe 44. Specifically, the cooling device includes a cooling jacket 61 and a cooling pipe 62 disposed in the cooling jacket 61, and the cooling medium circulates in the cooling pipe 62. The second branch pipe 44 is wound around the cooling jacket 61. When in use, the cooling medium circulates in the cooling pipe 62, thereby carrying the heat of the cooling jacket 61, thereby achieving the purpose of cooling the heat-conducting medium in the second branch pipe 44.

[0042] The circulation pump 70 is disposed on the first conduit 41 and / or the second conduit 42 .

[0043] During the heating process of the adsorption tower 10, the second control valve 46 and the cooling device are closed, and at the same time, the first control valve 45, the heating device 50 and the circulation pump 70 are opened. Under the action of the circulation pump 70, the heat-conducting medium circulates in the heat-conducting pipe 30, the first conduit 41, the first branch pipe 43 and the second conduit 42. During the flow of the heat-conducting medium in the first branch pipe 43, under the action of the heating device 50, the heating device 50 heats the heat-conducting medium in the first branch pipe 43, and the heated heat-conducting medium enters the heat-conducting pipe 30, thereby achieving the purpose of heating the adsorption tower 10.

[0044] In the process of cooling the adsorption tower 10, the first control valve 45 and the heating device 50 are closed, and at the same time, the second control valve 46, the cooling device and the circulation pump 70 are opened. Under the action of the circulation pump 70, the heat transfer medium circulates in the heat transfer pipe 30, the first conduit 41, the second branch pipe 44 and the second conduit 42. When the heat transfer medium passes through the cooling device, under the action of the cooling device, the cooling device cools down the heat transfer medium in the second branch pipe 44, and the cooled heat transfer medium enters the heat transfer pipe 30, thereby achieving the purpose of cooling the adsorption tower 10.

[0045] In one embodiment, the outer shell of the heat-conducting sleeve 20 is provided with a heat-insulating sleeve 80, so as to prevent the influence of the external temperature on the heating process and the cooling process.

[0046] In one embodiment, the heat-conducting sleeve 20 includes two half-shells 21 arranged opposite to each other, and the heat-conducting pipe 30 is arranged in a serpentine shape in the half-shells 21 to facilitate the maintenance and replacement of the heat-conducting pipe 30 .

[0047] In the specification of the present utility model, a lot of specific details are described. However, it is understood that the embodiments of the present utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this specification.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A temperature swing adsorption hydrogen purification device, comprising an adsorption tower (10) provided with an adsorbent, characterized in that: Also includes: A heat-conducting sleeve (20) which is sleeved outside the adsorption tower (10); A heat-conducting pipe (30), which is arranged in the heat-conducting sleeve (20); A first conduit (41), the outlet end of which is in communication with the inlet end of the heat conducting pipe (30); A second conduit (42), the inlet end of which is in communication with the outlet end of the heat conducting pipe (30); a first branch pipe (43), the inlet end of which is connected to the outlet end of the second conduit (42), and the outlet end of which is connected to the inlet end of the first conduit (41); a second branch pipe (44), the inlet end of which is in communication with the outlet end of the second conduit (42), and the outlet end of which is in communication with the inlet end of the first conduit (41); a first control valve (45), which is arranged on the first branch pipe (43); a second control valve (46) disposed on the second branch pipe (44); A heating device (50) for heating the heat-conducting medium in the first branch pipe (43); a cooling device, which is used to heat the heat-conducting medium in the second branch pipe (44); and A circulation pump (70) is arranged on the first conduit (41) and / or the second conduit (42).

2. The temperature swing adsorption hydrogen purification device according to claim 1, characterized in that: The outer shell of the heat-conducting sleeve (20) is provided with a heat-insulating sleeve (80).

3. The temperature swing adsorption hydrogen purification device according to claim 1 or 2, characterized in that: Two first control valves (45) are provided, and the two first control valves (45) are respectively provided at two ends of the first branch pipe (43); Two second control valves (46) are provided, and the two second control valves (46) are respectively provided at two ends of the second branch pipe (44).

4. The temperature swing adsorption hydrogen purification device according to claim 1 or 2, characterized in that: The heat-conducting sleeve (20) comprises two half-shells (21) arranged opposite to each other, and the heat-conducting pipe (30) is arranged in a serpentine shape inside the half-shells (21).

5. The temperature swing adsorption hydrogen purification device according to claim 1 or 2, characterized in that: The heating device (50) is an electric heating device (50), and the first branch pipe (43) is wound around the heating device (50).

6. The temperature swing adsorption hydrogen purification device according to claim 1 or 2, characterized in that: The cooling device comprises a cooling jacket (61) and a cooling pipe (62) arranged in the cooling jacket (61), a cooling medium circulates in the cooling pipe (62), and the second branch pipe (44) is wound around the cooling jacket (61).

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