CO2 pressure swing adsorption and desorption test device

Abstract

The utility model discloses a CO2 pressure swing adsorption and desorption test device which comprises a bottom plate, a carbon dioxide gas tank is movably connected to the position, close to one side, of the top of the bottom plate, the carbon dioxide gas tank is communicated with a first communicating pipe, and the end, away from the carbon dioxide gas tank, of the first communicating pipe is movably connected with a pressure pump; the end, away from the carbon dioxide gas tank, of the pressure pump is movably connected with a second communicating pipe, the second communicating pipe is fixedly sleeved with a first control valve, the end, away from the carbon dioxide gas tank, of the second communicating pipe is fixedly connected with a reaction chamber, and the end, away from the pressure pump, of the reaction chamber is movably connected with a sealing door. The front surface of the reaction chamber is fixedly connected with a connecting pipe. According to the utility model, the electric heater and the gas inlet pipe are arranged, so that the precision of a result obtained by a test can be improved, the influence of residual gas on the test result is reduced, and the influence degree of the residual gas on the test in a through test is stably reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas pressure swing test detection technical field especially relates to a CO2 pressure swing adsorption desorption test device. BACKGROUND

[0002] Carbon dioxide pressure swing adsorption desorption test is a kind of experiment for studying the adsorption and desorption behavior of carbon dioxide on adsorption material, generally by changing the pressure of carbon dioxide gas, to observe and analyze the adsorption and release process between adsorption material and carbon dioxide, to understand the adsorption performance and application range of adsorption material, the experiment can evaluate the application potential of adsorption material in carbon dioxide capture, separation and storage etc., and the feasibility in reducing greenhouse gas emissions and responding to climate change.

[0003] At present, the existing CO2 pressure swing adsorption desorption test device in the process of using, when the reaction chamber is evacuated, generally there will be incomplete gas extraction, resulting in some gas remaining in the reaction chamber, these residual gas can affect the accuracy and reliability of the experiment. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problem that some gas remains in the reaction chamber in the prior art, affecting the experimental result data, and provides a CO2 pressure swing adsorption desorption test device.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme:

[0006] A CO2 pressure swing adsorption desorption test device, including the bottom plate, the top of the bottom plate is movably connected with carbon dioxide gas tank near one side, the carbon dioxide gas tank is connected with first communication pipe, the first communication pipe is movably connected with the pressurizing pump at the end away from the carbon dioxide gas tank, the pressurizing pump is movably connected with the second communication pipe at the end away from the carbon dioxide gas tank, the fixed sleeve of second communication pipe is provided with first control valve, the end away from the carbon dioxide gas tank of second communication pipe is fixedly connected with reaction chamber, the end away from the pressurizing pump of reaction chamber is movably connected with sealing door, the front of reaction chamber is fixedly connected with connecting pipe, the fixed sleeve of connecting pipe is provided with second control valve.

[0007] Preferably, the end away from the pressurizing pump of second communication pipe is movably sleeved with air inlet pipe, the bottom of air inlet pipe away from the pressurizing pump is provided with electric heater, the top of electric heater is provided with coating groove, the side away from the second communication pipe of the top of electric heater is provided with flattening block.

[0008] Preferably, the middle part of the flattening block is connected with a connecting rod, the bottom of the connecting rod is connected with an electric telescopic cylinder through a bearing near the middle part, and one end of the electric telescopic cylinder away from the connecting rod is fixedly connected with the top of the bottom plate.

[0009] Preferably, the top of the reaction chamber is fixedly connected with a control center, and the top of the control center is provided with a display screen.

[0010] Preferably, the front and back of the reaction chamber are provided with grinders, and the bottom of the flattening block is attached to the top of the electric heater.

[0011] Preferably, the flattening block is fixedly connected with a limiting block near the left and right sides of the electric heater, and the inner side of the limiting block is attached to the left and right sides of the electric heater.

[0012] Compared with the prior art, the CO2 pressure swing adsorption desorption test device has the following beneficial effects:

[0013] 1. The CO2 pressure swing adsorption desorption test device is provided with an electric heater and an air inlet pipe, and the two electric heaters can improve the accuracy of test results and reduce the influence of residual gas on test results. In the same case, multiple tests cannot change the residual gas in the reaction chamber, but the amount of residual gas in the reaction chamber is uncontrollable, which can greatly affect the accuracy of the data obtained by multiple tests. Therefore, this method can stably reduce the influence of residual gas on tests in multiple tests.

[0014] 2. The CO2 pressure swing adsorption desorption test device is provided with a control center and an electric heater, and after desorption, the electric heater is heated to perform secondary desorption. The effect of pressure swing desorption is not obvious, and the heating desorption can improve the observation effect and facilitate clear comparison with the adsorption amount in the later stage. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The structure diagram of the CO2 pressure swing adsorption desorption test device is provided.

[0016] Figure 2 The top view of the CO2 pressure swing adsorption desorption test device is provided.

[0017] Figure 3 The reaction chamber of the CO2 pressure swing adsorption desorption test device is provided.

[0018] Figure 4 The internal structure of the reaction chamber of the CO2 pressure swing adsorption desorption test device is provided.

[0019] In the figure: 1, the base plate; 2, carbon dioxide gas tank; 3, first communication pipe; 4, pressurizing pump; 5, reaction chamber; 6, grinder; 7, second communication pipe; 8, first control valve; 9, second control valve; 10, connecting pipe; 11, control center; 12, display screen; 13, sealing door; 14, electric telescopic cylinder; 15, connecting rod; 16, adding groove; 17, electric heater; 18, limiting block; 19, flattening block; 20, air inlet pipe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0021] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model in a specific orientation, structure and operation, and therefore cannot be understood as limiting the utility model.

[0022] Referring to Figures 1-4 A CO2 pressure swing adsorption desorption test device, including base plate 1, the top of base plate 1 is movably connected with carbon dioxide gas tank 2 near one side, carbon dioxide gas tank 2 is communicated with first communication pipe 3, and the end of first communication pipe 3 away from carbon dioxide gas tank 2 is movably connected with pressurizing pump 4, the end of pressurizing pump 4 away from carbon dioxide gas tank 2 is movably connected with second communication pipe 7, and first control valve 8 is fixedly connected with second communication pipe 7, the end of second communication pipe 7 away from carbon dioxide gas tank 2 is fixedly connected with reaction chamber 5, the end of reaction chamber 5 away from pressurizing pump 4 is movably connected with sealing door 13, the front of reaction chamber 5 is fixedly connected with connecting pipe 10, and second control valve 9 is fixedly connected with connecting pipe 10, and the inside of reaction chamber 5 is provided with pressure system and temperature control system, and control center 11 can control the pressure system and temperature control system in reaction chamber 5.

[0023] Referring to Figures 2-4 A CO2 pressure swing adsorption desorption test device, the end of second communication pipe 7 away from pressurizing pump 4 is movably connected with air inlet pipe 20, the bottom of the end of air inlet pipe 20 away from pressurizing pump 4 is provided with electric heater 17, adding groove 16 is formed in the top of electric heater 17, and flattening block 19 is arranged on the top of electric heater 17 away from second communication pipe 7.

[0024] Referring to Figures 2-4A CO2 pressure swing adsorption-desorption test device, wherein a connecting rod 15 is connected to the middle bearing of the flattening block 19, and an electric telescopic cylinder 14 is connected to the bottom of the connecting rod 15 near the middle position. The end of the electric telescopic cylinder 14 away from the connecting rod 15 is fixedly connected to the top of the base plate 1.

[0025] Reference Figure 2 A CO2 pressure swing adsorption-desorption test device, wherein a control center 11 is fixedly connected to the top of the reaction chamber 5, and a display screen 12 is opened on the top of the control center 11.

[0026] Reference Figures 3-4 A CO2 pressure swing adsorption-desorption test device, wherein the front and back of the reaction chamber 5 are equipped with grinders 6, and the bottom of the flattening block 19 is attached to the top of the electric heater 17.

[0027] Reference Figure 4 A CO2 pressure swing adsorption-desorption test device, wherein the flattening block 19 is fixedly connected to the left and right sides of the electric heater 17, and the inner side of the limiting block 18 is in contact with the left and right sides of the electric heater 17.

[0028] In this invention, the sample to be tested first needs to be ground or otherwise processed. The sample is ground into fine particles using a grinder 6. The ground sample is then divided evenly and poured into the coating tank 16. The sealing door 13 is closed to keep the interior of the reaction chamber 5 sealed. The electric telescopic cylinder 14 is activated, causing it to repeatedly drive the connecting rod 15. The connecting rod 15 drives the flattening block 19 to evenly coat the sample onto the electric heater 17. After even coating and flattening, the vacuum pump is connected through the connecting pipe 10 to remove the gas inside the reaction chamber 5, creating a vacuum inside the reaction chamber 5. The first control valve 8 is closed, disconnecting the connecting pipe 10 from the vacuum pump. The first control valve 8 is then opened, and the pressurizing pump 4 is activated to pressurize the carbon dioxide gas inside the carbon dioxide tank 2 and deliver it to the interior of the reaction chamber 5 through the inlet pipe 20. After the sample has been fully adsorbed, the connecting pipe 10 is connected to a flow meter, and the second control valve 9 is opened. The flow meter calculates the gas levels before and after adsorption. The volume is calculated, and the adsorption amount is displayed on the display screen 12 through the control center 11. Then, the second control valve 9 is closed, and the internal pressure of the reaction chamber 5 is reduced through the control center 11. After the pressure is reduced, the second control valve 9 is opened, and the desorption amount is calculated through the flow meter. The second control valve 9 is then closed, and the sample is heated through the electric heater 17. After the heating is completed, the second control valve 9 is opened again, and the desorption amount is calculated through the flow meter. The presence of two electric heaters 17 can improve the accuracy of the test results and reduce the influence of residual gas on the test results. At the same time, gas replacement can be performed after vacuuming. Inert gas or other specific gases can be introduced for gas replacement, which can further remove residual gas, but the amount removed is limited. To a certain extent, it can also improve the accuracy of the test, but the overall test cost is high. After desorption, the electric heater 17 is heated for secondary desorption, mainly because the effect of pressure swing desorption is not obvious enough, and heating desorption can improve the observation effect.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A CO2 pressure swing adsorption-desorption test device, comprising a base plate (1), characterized in that, A carbon dioxide tank (2) is movably connected to the top of the base plate (1) near one side. The carbon dioxide tank (2) is connected to a first connecting pipe (3). A pressure pump (4) is movably connected to the end of the first connecting pipe (3) away from the carbon dioxide tank (2). A second connecting pipe (7) is movably connected to the end of the pressure pump (4) away from the carbon dioxide tank (2). A first control valve (8) is fixedly sleeved on the second connecting pipe (7). A reaction chamber (5) is fixedly connected to the end of the second connecting pipe (7) away from the carbon dioxide tank (2). A sealing door (13) is movably connected to the end of the reaction chamber (5) away from the pressure pump (4). A connecting pipe (10) is fixedly connected to the front of the reaction chamber (5). A second control valve (9) is fixedly sleeved on the connecting pipe (10).

2. The CO2 pressure swing adsorption-desorption test apparatus according to claim 1, characterized in that, An air inlet pipe (20) is movably connected to the end of the second connecting pipe (7) away from the pressurizing pump (4). An electric heater (17) is provided at the bottom of the end of the air inlet pipe (20) away from the pressurizing pump (4). A coating groove (16) is provided on the top of the electric heater (17). A flattening block (19) is provided on the side of the top of the electric heater (17) away from the second connecting pipe (7).

3. The CO2 pressure swing adsorption-desorption test apparatus according to claim 2, characterized in that, The flattening block (19) is connected to a connecting rod (15) in the middle bearing. The bottom of the connecting rod (15) is connected to an electric telescopic cylinder (14) near the middle. The end of the electric telescopic cylinder (14) away from the connecting rod (15) is fixedly connected to the top of the base plate (1).

4. The CO2 pressure swing adsorption-desorption test apparatus according to claim 1, characterized in that, The top of the reaction chamber (5) is fixedly connected to a control center (11), and a display screen (12) is opened on the top of the control center (11).

5. The CO2 pressure swing adsorption-desorption test apparatus according to claim 2, characterized in that, The reaction chamber (5) is equipped with a grinder (6) on both the front and back, and the bottom of the flattening block (19) is in contact with the top of the electric heater (17).

6. The CO2 pressure swing adsorption-desorption test apparatus according to claim 2, characterized in that, The flattening block (19) is fixedly connected to the limiting block (18) on both sides near the electric heater (17), and the inner side of the limiting block (18) is in contact with the left and right sides of the electric heater (17).

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