Modular solid amine continuous desorption equipment

Abstract

The utility model provides modularized continuous desorption equipment for solid amine. The modularized continuous desorption equipment comprises a material moving module, a negative pressure module, a heating module, a cooling module and at least one desorption module, wherein the desorption module is used for desorbing solid amine to be desorbed; the material moving module comprises a first material moving device for transferring fed materials to the feeding hole of the desorption module and a second material moving device for transferring discharged materials to the discharging hole of the desorption module; the heating module and the cooling module are both connected with the desorption module; and the negative pressure module is connected with the desorption module and is used for extracting the gas in the desorption module to a specified position. According to the device, continuous desorption of solid amine is realized, the desorption efficiency is high, the number of the desorption modules can be configured in a personalized manner, and the flexibility and the applicability of the device are high.

Description

Technical Field

[0001] The utility model relates to the technical field of solid amine desorption, in particular to modular solid amine continuous desorption equipment. Background Art

[0002] Solid amine adsorbent is an emerging CO2 capture material. Currently, most of the research on solid amine capture method focuses on the research of solid amine material production, material properties and other issues, and there is less research on modular solid amine continuous desorption equipment.

[0003] The existing solid amine desorption equipment has problems such as poor adaptability, low desorption efficiency, and poor process continuity. After the process and equipment selection are determined, the desorption equipment lacks the corresponding applicability for industrial application scenarios such as load fluctuations and phased construction. In addition, the existing solid amine desorption equipment often requires a large amount of heat medium and refrigerant when desorbing solid amine, which has high energy consumption.

[0004] Based on this, a solution needs to be proposed to solve at least one of the above problems. Utility Model Content

[0005] In order to overcome the defects of the above-mentioned prior art, the utility model provides a modular solid amine continuous desorption device, and the specific technical scheme is as follows:

[0006] The utility model provides a modular solid amine continuous desorption device, comprising: a material transfer module, a negative pressure module, a heating module, a cooling module and at least one desorption module;

[0007] The desorption module is used to desorb the solid amine to be desorbed; the material transfer module includes a first material transfer device for transferring the feed to the feed port of the desorption module and a second material transfer device for transferring the discharge to the discharge port of the desorption module;

[0008] The heating module and the cooling module are both connected to the desorption module; the negative pressure module is connected to the desorption module and is used to extract the gas in the desorption module to a designated position.

[0009] In a specific embodiment, it also includes a main control module and a detection module for detecting desorption conditions;

[0010] The detection module comprises a material level meter, a pressure sensor and a temperature sensor which are arranged in the desorption module; the material level meter, the pressure sensor and the temperature sensor are respectively communicatively connected to the main control module.

[0011] In a specific embodiment, a heat exchange tube is provided inside the desorption module; the output end of the heating module is connected to the input ends of different heat exchange tubes via different heat medium input valves, so as to transport heat medium to different desorption modules; the output end of the cooling module is connected to the input ends of different heat exchange tubes via different refrigerant input valves, so as to transport refrigerant to different desorption modules.

[0012] In a specific embodiment, the heat exchange tubes of adjacent desorption modules are connected via a connecting pipe provided with a switch valve.

[0013] In a specific embodiment, it also includes a heat medium loop pipe and a refrigerant loop pipe; the output ends of the different heat exchange pipes are connected to the heat medium loop pipe via a heat medium output valve, and the output ends of the different heat exchange pipes are also connected to the refrigerant loop pipe via a refrigerant output valve; the heat medium loop pipe is connected to the input end of the heating module, and the refrigerant loop pipe is connected to the input end of the cooling module.

[0014] In a specific embodiment, a cooling device for cooling the refrigerant is provided in the refrigerant circuit pipe.

[0015] In a specific embodiment, it also includes a first material storage container; the first material storage container is connected to the first material moving device via a discharge valve, and the first material moving device is respectively connected to the feed ports of different desorption modules via different feed valves.

[0016] In a specific embodiment, it further includes a second material storage container, the second material storage container is connected to the second material moving device, and the discharge ports of different desorption modules are respectively connected to the second material moving device via a discharge valve.

[0017] In a specific embodiment, a heater and a temperature sensor are provided in the heating module, and the output end of the heating module is connected to the input end of each of the heat exchange tubes via a water pump; and / or, the output end of the cooling module is connected to the input end of each of the heat exchange tubes via another water pump.

[0018] In a specific embodiment, it also includes a carbon dioxide pipeline, and the different desorption modules are each connected to the carbon dioxide pipeline via an exhaust valve. The negative pressure module is arranged in the carbon dioxide pipeline, and the output end of the carbon dioxide pipeline is connected to an external gas collection device.

[0019] The utility model has at least the following beneficial effects:

[0020] The utility model discloses a modular solid amine continuous desorption device. Through reasonable modular design, each module cooperates with each other, thereby improving the efficiency and flexibility of solid amine desorption, and can realize the process of continuous heating, desorption and cooling of solid amine. The equipment has strong continuity in operation. In addition, the number of desorption modules can be personalized, so that the equipment has good flexibility and applicability. Furthermore, by connecting the heat exchange pipes between adjacent desorption modules, the equipment also realizes the cascade utilization of energy, thereby reducing energy consumption, being more environmentally friendly, and having a better user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0023] Figure 2 Schematic diagram of the overall structure for achieving cascade utilization of energy between adjacent desorption modules.

[0024] Reference numerals:

[0025] 101-first storage container; 102-desorption module; 103-second storage container; 201-unloading valve; 202-feeding valve; 203-exhaust valve; 204-heat medium input valve; 205-refrigerant input valve; 206-discharge valve; 207-refrigerant output valve; 208-heat medium output valve; 209-switching valve; 210-heat medium loop pipe; 211-refrigerant loop pipe; 301-negative pressure module; 302-first water pump; 303-second water pump; 304-carbon dioxide pipeline; 401-heat medium insulation box; 402-refrigerant insulation box; 501-heater; 502-cooling device; 601-multi-point feeding conveyor; 602-collecting conveyor. DETAILED DESCRIPTION

[0026] In the following, various embodiments of the present invention will be described more fully. The present invention may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present invention to the specific embodiments disclosed herein, but rather the present invention should be understood to cover all adjustments, equivalents and / or alternatives that fall within the spirit and scope of the various embodiments of the present invention.

[0027] Hereinafter, the terms "include" or "may include" used in various embodiments of the present invention indicate the presence of disclosed functions, operations or elements, and do not limit the addition of one or more functions, operations or elements. In addition, as used in various embodiments of the present invention, the terms "include", "have" and their cognates are intended only to indicate specific features, numbers, steps, operations, elements, components or combinations of the foregoing, and should not be understood as first excluding the presence of one or more other features, numbers, steps, operations, elements, components or combinations of the foregoing or the possibility of adding one or more features, numbers, steps, operations, elements, components or combinations of the foregoing.

[0028] In various embodiments of the present invention, the expression "or" or "at least one of A or / and B" includes any combination or all combinations of the words listed at the same time. For example, the expression "A or B" or "at least one of A or / and B" may include A, may include B, or may include both A and B.

[0029] The expressions (such as "first", "second", etc.) used in the various embodiments of the present invention may modify the various components in the various embodiments, but may not limit the corresponding components. For example, the above expressions do not limit the order and / or importance of the elements. The above expressions are only used for the purpose of distinguishing one element from other elements. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, without departing from the scope of the various embodiments of the present invention, the first element may be referred to as the second element, and similarly, the second element may also be referred to as the first element.

[0030] It should be noted that in the present invention, unless otherwise clearly specified and defined, the terms "installation", "connection", "fixation" 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 communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Please refer to Figure 1 and Figure 2 The utility model provides a modular solid amine continuous desorption device, including: a material transfer module, a negative pressure module 301, a heating module, a cooling module and at least one desorption module 102 (102-1~102-n).

[0032] Specifically, the desorption module 102 is used to desorb the solid amine to be desorbed. The material transfer module includes a first material transfer device for transferring the feed to the feed port of the desorption module 102 and a second material transfer device for transferring the discharge to the discharge port of the desorption module 102. Exemplarily, the first material transfer device can be a multi-point feeding conveyor 601, and the second material transfer device can be a collecting conveyor 602.

[0033] It may also include a first material storage container 101 and a second material storage container 103, please refer to Figure 1 The first storage container 101 is connected to the multi-point feeding conveyor 601 through a discharge valve 201, and the multi-point feeding conveyor 601 is respectively connected to the feeding ports of different desorption modules 102 through different feeding valves 202 (202-1 to 202-n). The first storage container 101 stores the solid amine to be desorbed. When the solid amine to be desorbed is transported to the desorption module 102, the discharge valve 201 and the feeding valve 202 corresponding to the specific desorption module 102 are opened, so that the solid amine to be desorbed is transported to the specific desorption module 102.

[0034] The second storage container 103 is connected to the collecting conveyor 602, and the discharge ports of different desorption modules 102 are respectively connected to the collecting conveyor 602 via a discharge valve 206 (206-1 to 206-n). After the solid amine in the desorption module 102 is desorbed, the solid amine can be discharged to the collecting conveyor 602 by opening the corresponding discharge valve 206, and the collecting conveyor 602 can further transfer the solid amine to the second storage container 103 to recycle the solid amine, thereby reducing costs.

[0035] Both the heating module and the cooling module are connected to the desorption module 102. The heating module is used to heat the desorption module 102 so that the solid amine in the desorption module 102 can be desorbed. Exemplarily, the heating module can transport heat medium to the desorption module 102 to provide a thermal environment required for desorption of the solid amine in the desorption module. The heat medium can be hot water, water vapor, or heat transfer oil. In other embodiments, the desorption module 102 can also be heated by other methods, which are not specifically limited here.

[0036] The cooling module is used to cool the solid amine in the desorption module 102 after the desorption operation is completed. The cooled solid amine is transferred to a preset location for collection via the second material transfer device (collecting conveyor 602) to facilitate subsequent secondary utilization.

[0037] Furthermore, different desorption modules 102 are connected to a negative pressure module 301, which is used to evacuate a specific desorption module 102 before the desorption operation, thereby providing a vacuum environment inside the desorption module 102 to promote the desorption reaction and make the gas produced by desorption higher in purity. The negative pressure module 301 is also used to extract the gas in the desorption module 102 to a designated location for collection after the desorption is completed. Exemplarily, the negative pressure module 301 can be a fan.

[0038] In a specific embodiment, a carbon dioxide pipeline 304 may be included, and different desorption modules 102 are each connected to the carbon dioxide pipeline 304 through an exhaust valve 203, and the negative pressure module 301 is disposed in the carbon dioxide pipeline 304. The output end of the carbon dioxide pipeline 304 is connected to an external gas collection device, such as a gas storage tank, so as to discharge the gas generated by the desorption reaction to the gas storage tank for collection. In practical applications, when a specific desorption module 102 performs a desorption operation, its corresponding exhaust valve 203 is opened.

[0039] In one embodiment, the desorption module 102 can be designed in a standardized manner so that in actual applications, the desorption module 102 can be quickly manufactured and installed, reducing engineering costs and construction periods. For different usage scenarios and usage requirements, the number of desorption modules 102 can be flexibly and quickly adjusted to select the best solution to adapt to the current scenario, so that the device has good adaptability and flexibility.

[0040] In a specific embodiment, a heat exchange tube (not shown in the figure) is provided inside the desorption module 102. The specific structure of the heat exchange tube can be designed according to the actual situation and is not specifically limited here. For example, it can be a heat exchange tube coil. The output end of the heating module is connected to the input end of different heat exchange tubes through different heat medium input valves 204 (204-1~204-n), and the output end of the cooling module is connected to the input end of different heat exchange tubes through different refrigerant input valves 205 (205-1~205-n). In this embodiment, the heat medium and refrigerant output by the heating module and the cooling module will eventually enter the same set of heat exchange tubes, saving costs. In addition, in actual use, the number of desorption modules 102 working in the system can be flexibly adjusted by selectively opening or closing the heat medium input valve 204 or the refrigerant input valve 205 corresponding to a specific desorption module 102, which has good flexibility and adaptability.

[0041] In a specific embodiment, please refer to Figure 2, the heat exchange tubes of adjacent desorption modules 102 are connected by connecting pipes provided with switch valves 209 (209-1~209-n). Based on this, the heat medium and the refrigerant can circulate mutually between adjacent desorption modules 102, so that the cascade utilization of energy can be realized and energy can be saved. In the process of cascade utilization of energy, taking the heat medium as an example, the switch valve 209 between adjacent desorption modules 102 is opened, and the temperature of the heat medium of the previous desorption module 102 decreases after heat exchange with the solid amine. When entering the next desorption module 102, the heat medium input valve 204 corresponding to the next desorption module 102 can be opened at the same time to appropriately supplement the heat medium. The cascade utilization of the refrigerant is the same as that of the heat medium, which will not be repeated here.

[0042] In a specific embodiment, a heat medium loop pipe 210 and a refrigerant loop pipe 211 are also included. The output ends of different heat exchange pipes are connected to the heat medium loop pipe 210 through a heat medium output valve 208 (208-1~208-n), and the output ends of different heat exchange pipes are also connected to the refrigerant loop pipe 211 through a refrigerant output valve 207 (207-1~207-n). The heat medium loop pipe 210 is connected to the input end of the heating module, and the refrigerant loop pipe 211 is connected to the input end of the cooling module. Taking the heat medium loop pipe 210 as an example, after the heat medium exchanges heat with the solid amine, the heat medium output valve 208 can be opened, so that the heat medium enters the heat medium loop pipe 210 after passing through the heat medium output valve 208, and finally returns to the heating module to perform secondary heating on the heat medium, thereby further reducing energy consumption. The refrigerant loop pipe 211 is similar, and will not be repeated here.

[0043] Exemplarily, the heating module may include a heat medium insulation box 401, the output end of the heat medium insulation box 401 is connected to the input end of each desorption module 102 after passing through the first water pump 302 and each heat medium input valve 204, and the input end of the heat medium insulation box 401 is connected to the heat medium loop pipe 210. The heat medium insulation box 401 is provided with a heater 501 and a temperature sensor, the temperature sensor can detect the temperature of the heat medium in the heat medium insulation box 401, and the heater 501 can heat the heat medium when the heat medium is lower than a preset temperature, and the preset temperature is, for example, 120°C. The heater 501 is exemplarily an electric heater.

[0044] The cooling module may include a refrigerant insulation box 402, the output end of which is connected to the input end of each desorption module 102 after passing through the second water pump 303 and each refrigerant input valve 205, and the input end of the refrigerant insulation box 402 is connected to the refrigerant loop pipe 211. Exemplarily, a cooling device 502 for cooling the refrigerant may be provided in the refrigerant loop pipe 211, so that the refrigerant can be cooled in the process of returning to the refrigerant insulation box 402, so as to facilitate the subsequent secondary use of the refrigerant. The cooling device 502 is exemplarily an air cooler.

[0045] In a specific embodiment, it may also include a main control module and a detection module. The main control module may be any programmable control unit, such as a single chip microcomputer or a PLC.

[0046] The detection module is arranged in the desorption module 102 and is communicatively connected to the main control module, and is used to detect the desorption condition in the desorption module 102. Specifically, the detection module may include a level meter, a pressure sensor, and a temperature sensor arranged in the desorption module 102 and communicatively connected to the main control module, the level condition of the solid amine in the desorption module 102 is detected by the level meter, the air pressure condition in the desorption module 102 is detected by the pressure sensor, and the temperature condition of the solid amine in the desorption module 102 is detected by the temperature sensor.

[0047] The material transfer module, negative pressure module 301, heating module and cooling module are also communicatively connected to the main control module, and are used to start or shut down when the detection module detects that a preset condition is reached in the desorption module 102, thereby realizing continuous and automated desorption operation.

[0048] Exemplarily, the main control module can be communicatively connected to the unloading valve 201, the feeding valve 202, the exhaust valve 203, the heat medium input valve 204, the refrigerant input valve 205, the discharge valve 206, the refrigerant output valve 207, the heat medium output valve 208, the switch valve 209 and other components in the above embodiment. When in use, when the material level meter detects that the solid amine material level in a specific desorption module 102 is lower than a preset value, the main control module can control the unloading valve 201 and the feeding valve 202 corresponding to the specific desorption module 102 to open, and the multi-point feeding conveyor 601 conveys the solid amine to be desorbed to the desorption module 102. When the material level meter detects that the solid amine material level in the desorption module 102 is higher than the preset value, the main control module closes the above valves, opens the heat medium input valve 204, the heat medium output valve 208 and the exhaust valve 203, so as to perform the desorption operation. As the desorption reaction of the solid amine in the desorption module 102 continues and the generated gas is continuously discharged by the negative pressure module 301, the air pressure inside the desorption module 102 continues to decrease. When the pressure sensor detects that the air pressure in the desorption module 102 is lower than the preset value, the main control module closes the above valves, opens the refrigerant input valve 205 and the refrigerant output valve 207, and cools the solid amine in the desorption module 102 by inputting the refrigerant. When the temperature sensor detects that the solid amine in the desorption module 102 is lower than the preset temperature, the main control module closes the above valves, opens the discharge valve 206, and transfers the solid amine in the desorption module 102 to the collecting conveyor 602, and finally transfers it to the second storage container 103. As the solid amine in the desorption module 102 is continuously discharged, the solid amine material level in the desorption module 102 continues to decrease. When the material level is lower than the preset value, the feeding operation is performed again, and this cycle is used to achieve continuous and automated desorption operations.

[0049] In the embodiment including the switch valve 209, the main control module can also flexibly control the specific switch valve 209 to be opened or closed, thereby realizing flexible energy cascade utilization.

[0050] In summary, the modular solid amine continuous desorption equipment of the utility model, through reasonable modular design, enables the modules to cooperate with each other, improves the efficiency and flexibility of solid amine desorption, can realize the process of continuous heating, desorption and cooling of solid amine, and has strong continuity in the operation of the equipment. In addition, the number of desorption modules 102 can be personalized, so that the equipment has good flexibility and applicability. Furthermore, by connecting the heat exchange pipes between adjacent desorption modules 102, the equipment also realizes the cascade utilization of energy, thereby reducing energy consumption, being more environmentally friendly, and having a better user experience.

[0051] Those skilled in the art can understand that the accompanying drawings are only schematic diagrams of a preferred implementation scenario, and the modules or processes in the accompanying drawings are not necessarily required for implementing the present utility model.

[0052] Those skilled in the art will appreciate that the modules in the device in the implementation scenario can be distributed in the device in the implementation scenario according to the implementation scenario description, or can be changed accordingly and located in one or more devices different from the implementation scenario. The modules in the above implementation scenario can be combined into one module, or can be further split into multiple sub-modules.

[0053] The above serial numbers of the utility model are for description only and do not represent the advantages or disadvantages of the implementation scenarios.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A modular solid amine continuous desorption device, characterized in that: include: A material transfer module, a negative pressure module, a heating module, a cooling module and at least one desorption module; The desorption module is used to desorb the solid amine to be desorbed; the material transfer module includes a first material transfer device for transferring the feed to the feed port of the desorption module and a second material transfer device for transferring the discharge to the discharge port of the desorption module; The heating module and the cooling module are both connected to the desorption module; the negative pressure module is connected to the desorption module and is used to extract the gas in the desorption module to a designated position.

2. A modular solid amine continuous desorption device according to claim 1, characterized in that: It also includes a main control module and a detection module for detecting desorption conditions; The detection module comprises a material level meter, a pressure sensor and a temperature sensor which are arranged in the desorption module; the material level meter, the pressure sensor and the temperature sensor are respectively communicatively connected to the main control module.

3. A modular solid amine continuous desorption device according to claim 1, characterized in that: A heat exchange tube is arranged inside the desorption module; the output end of the heating module is connected to the input ends of different heat exchange tubes through different heat medium input valves, so as to transport heat medium to different desorption modules; the output end of the cooling module is connected to the input ends of different heat exchange tubes through different refrigerant input valves, so as to transport refrigerant to different desorption modules.

4. A modular solid amine continuous desorption device according to claim 3, characterized in that: The heat exchange tubes of adjacent desorption modules are connected via a connecting pipe provided with a switch valve.

5. A modular solid amine continuous desorption device according to claim 3, characterized in that: It also includes a heat medium loop pipe and a refrigerant loop pipe; the output ends of the different heat exchange pipes are connected to the heat medium loop pipe via a heat medium output valve, and the output ends of the different heat exchange pipes are also connected to the refrigerant loop pipe via a refrigerant output valve; the heat medium loop pipe is connected to the input end of the heating module, and the refrigerant loop pipe is connected to the input end of the cooling module.

6. A modular solid amine continuous desorption device according to claim 5, characterized in that: The refrigerant circuit pipe is provided with a cooling device for cooling the refrigerant.

7. The modular solid amine continuous desorption device according to claim 1, characterized in that: It also includes a first material storage container; the first material storage container is connected to the first material moving device via a discharge valve, and the first material moving device is respectively connected to the feed ports of different desorption modules via different feed valves.

8. A modular solid amine continuous desorption device according to claim 7, characterized in that: It also includes a second material storage container, which is connected to the second material moving device, and the discharge ports of different desorption modules are respectively connected to the second material moving device via a discharge valve.

9. A modular solid amine continuous desorption device according to claim 3, characterized in that: The heating module is provided with a heater and a temperature sensor, and the output end of the heating module is connected to the input end of each of the heat exchange tubes via a water pump; and / or the output end of the cooling module is connected to the input end of each of the heat exchange tubes via another water pump.

10. A modular solid amine continuous desorption device according to claim 1, characterized in that: It also includes a carbon dioxide pipeline. Different desorption modules are connected to the carbon dioxide pipeline via an exhaust valve. The negative pressure module is arranged in the carbon dioxide pipeline. The output end of the carbon dioxide pipeline is connected to an external gas collecting device.

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