Adsorption device for carbon dioxide detection

Abstract

The utility model relates to an adsorption device for carbon dioxide detection in the field of environmental protection, which comprises a support frame, an accommodating barrel is inserted into the top of the support frame, an adsorbent is filled in the accommodating barrel, a plurality of baffles are fixedly connected to the inner wall of the accommodating barrel and are distributed in a staggered manner, one end of each baffle extends to the middle of the accommodating barrel, and the other end of each baffle extends to the bottom of the accommodating barrel. A rotating motor is fixedly connected to the center of the top of the containing barrel, a shaft rod is fixedly connected to the output end of the rotating motor, the bottom of the shaft rod movably penetrates through the containing barrel and the multiple baffles in sequence through bearings, a stirring rod is fixedly connected to the outer end of the shaft rod, and an air inlet pipe is fixedly connected to the bottom of the outer surface of the containing barrel; the top of the gas inlet pipe is fixedly connected with a plurality of gas filling pipes, and by adopting the gas inlet pipe, the gas filling pipes and other structures, in the process of carrying out an adsorption experiment on carbon dioxide through adsorbents, the moving path of flue gas can be increased, so that the adsorbents at different positions are uniformly adsorbed, and the accuracy of the experiment is improved.

Description

Technical Field

[0001] The utility model relates to an adsorption device for carbon dioxide detection, in particular to an adsorption device for carbon dioxide detection applied in the field of environmental protection. Background Art

[0002] In the development process of new CO2 solid adsorbents, testing the CO2 adsorption performance is essential.

[0003] At present, most studies use thermogravimetric analyzers to study the carbonation process by increasing the weight of the adsorbent. However, the mass of the absorbent actually involved in the reaction is relatively small, and is restricted by the conditions such as the inlet type, flow rate, and test temperature range of the thermogravimetric analyzer. It is not convenient to simulate the multi-component mixed gas conditions in the flue gas including water vapor. Therefore, a fixed bed is generally used for the carbon dioxide adsorption test.

[0004] However, during adsorption experiments with existing fixed bed structures, whether horizontal or vertical, the gas mostly passes directly through the adsorbent, and the gas movement path is short, so that part of the adsorbent has reached adsorption saturation, while the other part of the adsorbent can only adsorb a small amount of carbon dioxide, thereby reducing the accuracy of the experiment. Utility Model Content

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the utility model is that in the carbon dioxide adsorption experiment, the flow path of the flue gas is short, which makes the adsorbent at different positions adsorbed unevenly, thereby reducing the accuracy of the experiment.

[0006] In order to solve the above problems, the utility model provides an adsorption device for carbon dioxide detection, including a support frame, a containing barrel is inserted on the top of the support frame, a temperature sensor and a thermoelectric component are arranged in the containing barrel, the bottom of the containing barrel is conical, the containing barrel is filled with an adsorbent, a baffle is fixedly connected to the inner wall of the containing barrel, a plurality of baffles are staggered, one end of the baffle extends to the middle of the containing barrel, a rotating motor is fixedly connected to the center of the top of the containing barrel, a shaft is fixedly connected to the output end of the rotating motor, the bottom of the shaft passes through the containing barrel and the plurality of baffles through bearings in turn, a stirring rod is fixedly connected to the outer end of the shaft, an air inlet pipe is fixedly connected to the bottom of the outer surface of the containing barrel, a plurality of gas filling pipes are fixedly connected to the top of the air inlet pipe, an air outlet pipe and a feed pipe are fixedly connected to the left and right ends of the top of the containing barrel respectively, a discharge pipe is fixedly connected to the bottom of the containing barrel, a gas concentration detector is installed on both the air inlet pipe and the air outlet pipe, and a controller is fixedly connected to the outer surface of the containing barrel.

[0007] In the above-mentioned adsorption device for carbon dioxide detection, the gas flow distance can be increased, which is beneficial to the adsorption of carbon dioxide by the adsorbent and improves the accuracy of the experiment.

[0008] As a further improvement of the present application, the outer surfaces of the air inlet pipe, the air filling pipe and the discharge pipe are all fixedly connected with a one-way electric valve, and the inner thread of the feed pipe is connected with a sealing plug.

[0009] As a further improvement of the present application, the baffle is a ring-shaped structure with a cross-section treatment, and the diameter of the baffle is consistent with the inner diameter of the containing barrel, the longitudinal section of the baffle is trapezoidal, and the end close to the shaft is lower than the other end, the inclination direction of the stirring rod is opposite to the inclination direction of the upper surface of the baffle, and the lower surface of the stirring rod is in contact with the upper surface of the baffle.

[0010] As a further improvement of the present application, a display screen is mounted on the surface of the controller for use therewith. The controller is electrically connected to the rotating motor and the one-way electric valve respectively, and the temperature sensor, gas concentration detector, gas flow monitor and thermoelectric component are all electrically connected to the controller.

[0011] As another improvement of the present application, the bottom of the support frame is fixedly connected to a bottom plate, the outer surface of the bottom plate is sleeved with a base, the inner bottom wall of the base is fixedly connected to a plurality of dampers, and a vibration motor is fixedly connected to the bottom center of the bottom plate.

[0012] As another improved supplement of the present application, a spring is sleeved on the outer surface of the damper, the top of the spring is fixedly connected to the bottom of the base plate, and the bottom of the spring is fixedly connected to the inner bottom wall of the base.

[0013] To sum up, in the actual application process, a certain volume of adsorbent is poured into the storage barrel, and carbon dioxide gas enters the storage barrel through the air inlet pipe. During the air intake process, nitrogen, water vapor and other multi-component mixed gases can be discharged through the gas filling pipe to simulate the flue gas under different conditions, and then the current carbon dioxide content is detected by the gas concentration detector on the air inlet pipe. After the flue gas enters the storage barrel, the adsorbent adsorbs carbon dioxide. The presence of the baffle is beneficial to increase the gas flow stroke, thereby facilitating the adsorption of carbon dioxide by the adsorbent, and then discharged through the outlet pipe. The carbon dioxide concentration and gas flow in the flue gas are detected by the gas concentration detector and the gas flow monitor on the outlet pipe, and the thermoelectric component can be used to adjust the temperature of the storage barrel, so that researchers can obtain various research data, which is convenient for researchers to study the adsorption performance of adsorbents under different experimental conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the first embodiment of the present application;

[0015] Figure 2 This is a schematic diagram of the structure of the container according to the first embodiment of the present application;

[0016] Figure 3This is a cross-sectional view of the container structure of the first embodiment of the present application;

[0017] Figure 4 This is a schematic diagram of the baffle structure of the first embodiment of the present application;

[0018] Figure 5 This is a schematic diagram of the three-dimensional structure of the second embodiment of the present application;

[0019] Figure 6 This is a schematic diagram of the internal structure of the base according to the second embodiment of the present application.

[0020] Description of the numbers in the figure:

[0021] 1 support frame, 2 containing barrel, 3 baffle, 4 rotating motor, 5 shaft rod, 6 air inlet pipe, 7 gas filling pipe, 8 air outlet pipe, 9 feeding pipe, 10 discharging pipe, 11 gas concentration detector, 12 controller, 13 one-way electric valve, 14 bottom plate, 15 base, 16 damper, 17 vibration motor, 18 spring, 19 stirring rod, 20 gas flow monitor. DETAILED DESCRIPTION

[0022] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0023] The first implementation method:

[0024] Figure 1 The figure shows: an adsorption device for carbon dioxide detection, including a support frame 1, a containing barrel 2 is inserted on the top of the support frame 1, a temperature sensor and a thermoelectric component are arranged in the containing barrel 2, and the thermoelectric component can be selected as a heating wire embedded in the containing barrel 2. The temperature of the containing barrel 2 can be adjusted by the heating wire, and the temperature information is transmitted to a display screen matched with the controller 12, so that the device can simulate the temperature of the actual flue gas in the containing barrel 2. The bottom of the outer surface of the containing barrel 2 is fixedly connected with an air inlet pipe 6, and the top of the air inlet pipe 6 is fixedly connected with a plurality of gas filling pipes 7. Through the gas filling pipe 7, a multi-component mixed gas such as nitrogen and water vapor can be added to the flue gas, and the gas filling amount can be adjusted by a self-equipped flow meter on the matching gas cylinder, so as to realize The simulation of the mixed components of the current flue gas is performed. The left and right ends of the top of the storage barrel 2 are respectively fixedly connected with an outlet pipe 8 and a feed pipe 9, and the bottom of the storage barrel 2 is fixedly connected with a discharge pipe 10. The inlet pipe 6 and the outlet pipe 8 are both equipped with a gas concentration detector 11 and a gas flow monitor 20. Those skilled in the art can select a suitable type of gas concentration detector 11 according to actual needs, such as: FGD2-C-CO. Those skilled in the art can select a suitable type of gas flow monitor 20 according to actual needs, such as: XG-RSL. Through the gas concentration detector 11, the carbon dioxide concentration of the flue gas before and after adsorption can be detected. The probes of the gas concentration detector 11 penetrate into the inlet pipe 6 and the outlet pipe 8 respectively.

[0025] Figure 2 It is shown that: the outer surface of the storage barrel 2 is fixedly connected with a controller 12, and a display screen for use therewith is installed on the surface of the controller 12; the outer surfaces of the air inlet pipe 6, the gas filling pipe 7 and the discharge pipe 10 are fixedly connected with a one-way electric valve 13, and those skilled in the art can select a suitable type of one-way electric valve 13 according to actual needs, for example: D341X-10C; the internal thread of the feed pipe 9 is connected with a sealing plug, and the sealing plug can prevent the smoke from being discharged through the feed pipe 9, thereby improving the accuracy of detection; the bottom of the storage barrel 2 is conical, and the conical bottom is convenient for the discharge of the adsorbent; the controller 12 is electrically connected to the rotating motor 4 and the one-way electric valve 13 respectively, and those skilled in the art can select a suitable type of rotating motor 4 according to actual needs, for example: Y2-63M1-2-0.18KW; the temperature sensor, the gas concentration detector 11, the gas flow monitor 20 and the thermoelectric component are all electrically connected to the controller 12.

[0026] Figure 3 It is shown that: the storage barrel 2 is filled with adsorbent, and a baffle 3 is fixedly connected to the inner wall of the storage barrel 2. The existence of the baffle 3 is conducive to increasing the gas flow range, which is conducive to the adsorption of carbon dioxide by the adsorbent. The multiple baffles 3 are staggered and distributed, and one end of the baffle 3 extends to the middle of the storage barrel 2. The bottom of the shaft rod 5 passes through the storage barrel 2 and multiple baffles 3 in turn through the bearing. The outer end of the shaft rod 5 is fixedly connected to a stirring rod 19, which facilitates the pouring and discharge of the adsorbent and is convenient for researchers to use.

[0027] Figure 4 It is shown that: a rotating motor 4 is fixedly connected to the center of the top of the storage barrel 2, a shaft 5 is fixedly connected to the output end of the rotating motor 4, the baffle 3 is a ring structure with a cross-section treatment, and the diameter of the baffle 3 is consistent with the inner diameter of the storage barrel 2, the longitudinal section of the baffle 3 is a trapezoid, and one end close to the shaft 5 is lower than the other end, the inclination direction of the stirring rod 19 is opposite to the inclination direction of the upper surface of the baffle 3, and the lower surface of the stirring rod 19 is in contact with the upper surface of the baffle 3.

[0028] During the detection process, the adsorbent is first poured into the container 2, the sealing plug is screwed on, the rotating motor 4 is started to drive the shaft 5 to rotate, and the stirring rod 19 scrapes the upper surface of the baffle 3, so that the adsorbent is evenly distributed in the container 2, and carbon dioxide enters the container 2 through the intake pipe. During the intake process, a multi-component mixed gas such as nitrogen and water vapor can be discharged through the gas filling pipe 7 to simulate the flue gas under different conditions, and then the current carbon dioxide content and gas flow are detected by the gas concentration detector 11 and the gas flow monitor 20 on the intake pipe 6. The flue gas enters the container 2. Afterwards, the adsorbent adsorbs carbon dioxide. The presence of the baffle 3 is beneficial to increasing the gas flow range, so that the flue gas flows in an S-shape from bottom to top inside the adsorbent, which is beneficial to the adsorption of carbon dioxide by the adsorbent. At the same time, the containing barrel 2 can be heated by the thermoelectric component to simulate the temperature of the actual flue gas, and then discharged through the outlet pipe 8. The carbon dioxide concentration and gas flow in the flue gas are detected by the gas concentration detector 11 and the gas flow monitor 20 on the outlet pipe 8, so as to facilitate researchers to study the adsorption performance of the adsorbent under various experimental conditions.

[0029] The second implementation method:

[0030] Based on the first embodiment, this embodiment adds a bottom plate 14, a base 15, a damper 16, a vibration motor 17 and a spring 18, and the rest of the parts are consistent with the first embodiment.

[0031] Figure 5 and Figure 6 It is shown that: a bottom plate 14 is fixedly connected to the bottom of the support frame 1, a base 15 is sleeved on the outer surface of the bottom plate 14, a plurality of dampers 16 are fixedly connected to the inner bottom wall of the base 15, a vibration motor 17 is fixedly connected to the bottom center of the bottom of the bottom plate 14, and technicians in this field can select a suitable type of vibration motor 17 according to actual needs, for example: Yzo-20-6, a spring 18 is sleeved on the outer surface of the damper 16, and the coordinated use of the damper 16 and the spring 18 can not only support the bottom plate 14, but also play a buffering role after vibration, the top of the spring 18 is fixedly connected to the bottom of the bottom plate 14, and the bottom of the spring 18 is fixedly connected to the inner bottom wall of the base 15.

[0032] During the process of pouring and discharging the adsorbent, the vibration motor 17 can be started to drive the support frame 1 to vibrate, so that the adsorbent in the storage barrel 2 can be evenly distributed, and the efficiency of adsorbent discharge can be improved, which is convenient for researchers to use.

[0033] In view of current practical needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. An adsorption device for carbon dioxide detection, comprising a support frame (1), characterized in that: A accommodating barrel (2) is inserted into the top of the support frame (1), a temperature sensor and a thermoelectric component are arranged in the accommodating barrel (2), the bottom of the accommodating barrel (2) is conical, the accommodating barrel (2) is filled with an adsorbent, a baffle (3) is fixedly connected to the inner wall of the accommodating barrel (2), a plurality of baffles (3) are staggeredly distributed, one end of the baffle (3) extends to the middle of the accommodating barrel (2), a rotating motor (4) is fixedly connected to the center of the top of the accommodating barrel (2), an output end of the rotating motor (4) is fixedly connected to a shaft (5), the bottom of the shaft (5) passes through the accommodating barrel (2) and a plurality of baffles (3) in turn through a bearing, and the outer end of the shaft (5) is fixedly connected to a stirring rod (19); The bottom of the outer surface of the accommodating barrel (2) is fixedly connected to an air inlet pipe (6), the top of the air inlet pipe (6) is fixedly connected to a plurality of gas filling pipes (7), the left and right ends of the top of the accommodating barrel (2) are respectively fixedly connected to an air outlet pipe (8) and a feed pipe (9), the bottom of the accommodating barrel (2) is fixedly connected to a discharge pipe (10), the air inlet pipe (6) and the air outlet pipe (8) are both installed with a gas concentration detector (11) and a gas flow monitor (20), and the outer surface of the accommodating barrel (2) is fixedly connected to a controller (12).

2. The adsorption device for carbon dioxide detection according to claim 1, characterized in that: The outer surfaces of the air inlet pipe (6), the air filling pipe (7) and the discharge pipe (10) are all fixedly connected with a one-way electric valve (13), and the inner thread of the feed pipe (9) is connected with a sealing plug.

3. The adsorption device for carbon dioxide detection according to claim 1, characterized in that: The baffle (3) is a cross-sectioned annular structure, and the diameter of the baffle (3) is consistent with the inner diameter of the accommodating barrel (2). The longitudinal section of the baffle (3) is trapezoidal, and one end close to the shaft (5) is lower than the other end. The inclination direction of the stirring rod (19) is opposite to the inclination direction of the upper surface of the baffle (3), and the lower surface of the stirring rod (19) is in contact with the upper surface of the baffle (3).

4. The adsorption device for carbon dioxide detection according to claim 2, characterized in that: The controller (12) is provided with a display screen for use therewith mounted on its surface. The controller (12) is electrically connected to the rotating motor (4) and the one-way electric valve (13) respectively. The temperature sensor, the gas concentration detector (11), the gas flow monitor (20) and the thermoelectric component are all electrically connected to the controller (12).

5. The adsorption device for carbon dioxide detection according to claim 1, characterized in that: The bottom of the support frame (1) is fixedly connected to a bottom plate (14), the outer surface of the bottom plate (14) is sleeved with a base (15), the inner bottom wall of the base (15) is fixedly connected to a plurality of dampers (16), and the bottom center of the bottom plate (14) is fixedly connected to a vibration motor (17).

6. The adsorption device for carbon dioxide detection according to claim 5, characterized in that: The outer surface of the damper (16) is sleeved with a spring (18), the top of the spring (18) is fixedly connected to the bottom of the bottom plate (14), and the bottom of the spring (18) is fixedly connected to the inner bottom wall of the base (15).

Images