A device for detecting the absorption rate of a carbon dioxide absorbent

Abstract

The present invention relates to the field of absorption rate detection technology, and specifically to a detection device for the absorption rate of a carbon dioxide absorbent, comprising a chassis provided with a transverse partition, a hinged sealing cover on the top of the chassis, a placement plate for placing a sample chamber provided on the transverse partition, a weight sensor provided for quality inspection of the placement plate and the sample chamber, a connection box fixedly provided on the placement plate and passing through the placement plate, one end of the connection box being inserted into the sample chamber, the other end of the connection box being connected to an air intake mechanism located at the bottom of the chassis, a rotatable jet mechanism being provided at the end of the connection box inserted into the sample chamber, the jet mechanism being able to rotate under the action of the carbon dioxide provided by the air intake mechanism and spraying the carbon dioxide onto the carbon dioxide absorbent. The present invention does not require the use of additional power and can automatically and evenly spray the carbon dioxide onto the carbon dioxide absorbent, while automatically sealing the opening of the sample chamber using the air pressure sealing cover, thereby preventing the carbon dioxide from leaking out and affecting the accuracy of the detection data.

Description

Technical Field

[0001] The present invention relates to the technical field of absorption rate detection, and in particular to a device for detecting the absorption rate of a carbon dioxide absorbent. Background Art

[0002] The use of calcium hydroxide as a carbon dioxide absorbent in miners' self-rescuers is a key technical measure to safeguard miners' lives. In mine accidents, particularly when ventilation systems fail due to gas explosions or fires, carbon dioxide concentrations within confined spaces can rapidly rise, threatening miners' respiratory safety. Calcium hydroxide, due to its efficient chemical adsorption properties, is widely used in the purification devices of self-rescuers. When carbon dioxide exhaled by miners passes through an absorption tank filled with calcium hydroxide, a chemical reaction occurs, producing calcium carbonate and water, effectively reducing carbon dioxide concentrations and ensuring the reusability of breathing air.

[0003] However, the absorption rate of carbon dioxide absorbents such as calcium hydroxide is currently generally tested under laboratory conditions. The experimental equipment has a low degree of integration, the operation is cumbersome, and the detection process is time-consuming, resulting in low efficiency and difficulty in ensuring detection accuracy. At the same time, the placement of the carbon dioxide inlet pipe and the carbon dioxide absorbent is relatively fixed. The carbon dioxide absorbent closer to the carbon dioxide inlet absorbs more fully, resulting in insufficient and uneven chemical reactions in absorbing carbon dioxide. In addition, due to the poor sealing of the reaction chamber during the detection process, the carbon dioxide absorbent is exposed to the air, which also affects the detection accuracy. Summary of the Invention

[0004] To solve the above technical problems, the present invention aims to provide a device for detecting the absorption rate of a carbon dioxide absorbent, which can evenly spray carbon dioxide gas onto the carbon dioxide absorbent under sealed conditions, so as to improve the accuracy of measuring the absorption rate of the carbon dioxide absorbent.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] and a tube connecting the discharging opening of the gas station with the help of the suction cup and the suction cup to pass through the gas station, wherein the suction cup has the function of sucking carbon dioxide from the suction cup to the outlet port of the gas station.

[0007] Furthermore, the jet mechanism includes a limiting ball fixedly connected to the inner circle of the rotating circle, the interior of the limiting ball is provided with a cavity, and the limiting ball passes through the surface of the plane where the rotating circle is located to open a vent connected to the connecting box; the lower surface of the rotating circle is fixedly connected to one end of a plurality of support rods, and the other ends of the plurality of support rods are fixedly connected to a plurality of fan blades through the main shaft; an arc-shaped hole is provided on the upper surface of the limiting ball, and an arc-shaped plate is provided in the cavity of the limiting ball, which matches the shape of the arc-shaped hole and slides with it. An air outlet pipe is provided through the arc-shaped plate located within the range of the arc-shaped hole, one end of the air outlet pipe is connected to the cavity of the limiting ball, and the other end of the air outlet pipe is sleeved with a straight pipe, the axis of the straight pipe is arranged parallel to the bottom surface of the sample chamber, and the lower surface of the straight pipe has a plurality of jet ports along the axis of the straight pipe;

[0008] Furthermore, a sliding block is fixedly connected to the lower surface of the straight tube, and a track ring concentric with the connection box is fixedly provided on the outer wall of the end portion of the connection box inserted into the sample chamber, and the sliding block is slidably connected to the track ring;

[0009] Furthermore, the air intake mechanism includes a carbon dioxide gas cylinder disposed on the bottom surface of the chassis, the gas outlet of the carbon dioxide gas cylinder is connected to one end of a first connecting pipe through a switch valve, the end of the first connecting pipe away from the carbon dioxide gas cylinder is connected to the gas inlet end of the electronic flow controller, the gas outlet end of the electronic flow controller is connected to one end of a transfer pipe, and the other end of the transfer pipe is connected to the connection box;

[0010] Furthermore, a gasket is provided on the upper surface of the placement plate;

[0011] Furthermore, a sealing ring is fixedly provided on the outer surface of one end of the connection box inserted into the sample chamber;

[0012] Furthermore, the sealing cover is provided with a through hole facing the sample chamber, a sealing unit is fixedly arranged in the through hole, the sealing unit comprises a connecting ring fixedly arranged on the inner wall of the through hole of the sealing cover, a top cover matching the top opening of the sample chamber is fixedly arranged in the connecting ring, an exhaust pipe connected to the interior of the sample chamber is provided on the top cover, a carbon dioxide concentration sensor is fixedly connected to one end of the exhaust pipe away from the top cover, a sealing mechanism is provided on the top cover, the sealing mechanism and the outer wall of the sample chamber are plugged into each other, and the sealing between the top cover and the sample chamber is achieved by air pressure control;

[0013] Furthermore, a filter is provided in the exhaust pipe;

[0014] The cam is connected to the second end of the second connecting pipe by the air filter, and the cam is connected to the air filter by the air filter.

[0015] Furthermore, the plurality of air injection pipes are evenly arranged along the bottom surface of the connecting ring and around the opening of the sample chamber.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention has a high degree of integration and is simple to operate. By setting a placement mechanism, a sample chamber provided with a carbon dioxide absorbent can be placed, thereby protecting the sample chamber. At the same time, the placement mechanism cooperates with the air intake mechanism. When carbon dioxide is poured into the sample chamber, the jet mechanism does not need to use additional power and can automatically and evenly spray carbon dioxide on the carbon dioxide absorbent in the inner cavity of the sample chamber.

[0018] 2. The present invention can seal the sample chamber containing the carbon dioxide absorbent by providing a sealing unit on the sealing cover, and can automatically seal the opening of the sample chamber by using air pressure when carbon dioxide is poured into the inner cavity of the sample chamber, thereby preventing carbon dioxide from leaking out and affecting the accuracy of the detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a device for detecting the absorption rate of a carbon dioxide absorbent according to the present invention;

[0020] Figure 2 This is a structural side view of a device for detecting the absorption rate of a carbon dioxide absorbent according to the present invention;

[0021] Figure 3 Schematic diagram of the structure of the air intake mechanism of the present invention;

[0022] Figure 4 It is a partial structural diagram of the air intake mechanism of the present invention;

[0023] Figure 5 It is a schematic cross-sectional structure diagram of the placement mechanism of the present invention;

[0024] Figure 6 Schematic diagram of the structure of the jet mechanism of the present invention;

[0025] Figure 7 Schematic diagram of the structure of the sealing unit of the present invention;

[0026] Figure 8 Schematic diagram of the cross-sectional structure of the sealing unit of the present invention;

[0027] Figure 9 Schematic diagram of the structure of the sealing mechanism of the present invention;

[0028] Figure 10 for Figure 9 A magnified view of the structure at point A;

[0029] In the figure: 1, chassis; 11, partition; 2, hinge; 3, sealing cover; 4, air inlet mechanism; 5, placement mechanism; 6, sealing unit; 7, sample chamber; 71, CO2 inlet; 41, CO2 cylinder; 42, first connecting pipe; 43, electronic flow controller; 44, transfer pipe; 51, connecting box; 52, placement plate; 53, gasket; 54, sealing ring; 55, track ring; 56, rotating ring; 57, jet mechanism; 571, limit ball; 572, support rod; 57 3. Fan blades; 574. Curved plate; 575. Exhaust pipe; 576. Straight pipe; 577. Sliding block; 578. Jet port; 61. Connecting ring; 62. Top cover; 63. Exhaust pipe; 64. Filter; 65. Carbon dioxide concentration sensor; 66. Side pipe; 67. Exhaust valve; 68. Second connecting pipe; 69. Sealing mechanism; 691. Connecting ring; 692. Limiting pipe; 693. Jet pipe; 694. Piston; 695. Spring; 696. Fixing bracket; 697. Sealing ring. DETAILED DESCRIPTION

[0030] The technical solution adopted by the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] like Figure 1-2 As shown, the present invention provides a device for detecting the absorption rate of a carbon dioxide absorbent, comprising:

[0032] Chassis 1, the interior of chassis 1 is divided into two independent inner cavities along the longitudinal direction by setting a transverse partition 11. The top of chassis 1 is provided with an opening, and the opening at the top of chassis 1 is sealed with a sealing cover 3. In this embodiment, one end of sealing cover 3 is rotatably connected to the side wall of the top of chassis 1 through hinge 2, so that sealing cover 3 can be buckled into the opening at the top of chassis 1 to achieve sealing.

[0033] The sample cabin 7 is arranged in the inner cavity at the top of the chassis 1. The sample cabin 7 is a cavity structure with a top opening. The carbon dioxide absorbent can be placed on the bottom surface inside the sample cabin 7 from the top opening of the sample cabin 7, and the top opening of the sample cabin 7 is sealed using the sealing cover 3. The bottom surface of the sample cabin 7 is provided with a carbon dioxide inlet 71 for introducing carbon dioxide gas.

[0034] An air intake mechanism 4 is provided in the inner cavity at the bottom of the chassis 1. In the present invention, the air intake mechanism 4 is used to provide carbon dioxide to the carbon dioxide absorbent in the sample chamber 7 so that the carbon dioxide absorbent can contact and absorb the carbon dioxide. At the same time, the air intake mechanism 4 can also control the injection rate and amount of carbon dioxide;

[0035] Furthermore, in this embodiment, if Figure 3 As shown, the air intake mechanism 4 includes: a carbon dioxide gas cylinder 41 disposed on the bottom surface of the inner cavity of the chassis 1, the gas outlet of the carbon dioxide gas cylinder 41 is connected to one end of a first connecting pipe 42 through a switch valve, the end of the first connecting pipe 42 away from the carbon dioxide gas cylinder 41 is connected to the gas inlet end of an electronic flow controller 43, and the gas outlet end of the electronic flow controller 43 is connected to one end of a transfer pipe 44;

[0036] Specifically, in this embodiment, a carbon dioxide gas cylinder 41 filled with compressed carbon dioxide is provided. Under the control of a switch valve, the compressed carbon dioxide inside can be ejected from the gas outlet. The ejected carbon dioxide is guided through a first connecting pipe 42 and ejected from a transfer pipe 44 in a quantitative manner under the control of an electronic flow controller 43.

[0037] The placement mechanism 5 is fixedly arranged on the transverse partition 11 inside the chassis 1, and is used to place the sample chamber 7 and pass the carbon dioxide provided by the air intake mechanism 4 into the sample chamber 7;

[0038] Furthermore, in this embodiment, if Figure 4As shown, the placement mechanism 5 includes: a connection box 51 and a placement plate 52 fixedly arranged along the outer surface of the connection box 51, wherein the connection box 51 is a tubular structure with both ends open, and the placement plate 52 is arranged on the transverse partition 11. The connection box 51 passes through the placement plate 52, so that the two ends of the connection box 51 lead to two independent cavities of the chassis 1 respectively;

[0039] Preferably, a through hole matching the shape of the placement plate 52 can be opened on the partition 11, and the placement plate 52 can be clamped in the through hole of the partition 11 to achieve a detachable connection between the placement plate 52 and the partition 11. In other embodiments, the placement plate 52 can also be fixed on the partition 11 or the placement plate 52 and the partition 11 can be made into an integrated structure.

[0040] like Figure 4 and Figure 7 As shown, the upper surface of the placement plate 52 is used to place the sample chamber 7. A weight sensor is provided between the two for measuring the weight change of the carbon dioxide absorbent in the sample chamber 7. A circle of baffles perpendicular to the upper surface of the placement plate 52 is fixedly provided at the extension of the upper surface of the placement plate 52. In addition, the upper surface of the placement plate 52 is provided with concave and convex patterns that match the bottom surface of the sample chamber 7, so that the placement plate 52 can stably support the sample chamber 7.

[0041] Preferably, Figure 5 As shown, a gasket 53 may be provided on the upper surface of the placement plate 52 to limit the sample chamber 7 and prevent the sample chamber 7 from being damaged when being pressed.

[0042] The carbon dioxide inlet 71 on the bottom surface of the sample chamber 7 matches the end of the connection box 51. That is, when the sample chamber 7 is placed on the upper surface of the placement plate 52, the end of the connection box 51 can be inserted into the sample chamber 7 from the carbon dioxide inlet 71 on the bottom surface of the sample chamber 7. Preferably, a sealing ring 54 can be fixedly provided on the outer surface of the end of the connection box 51. The sealing ring 54 and the inner surface of the carbon dioxide inlet 71 are frictionally adapted to each other, so that the sample chamber 7 can be tightly sheathed on the outer surface of the connection box 51 to prevent carbon dioxide from leaking out and improve the sealing between the connection box 51 and the sample chamber 7.

[0043] One end of the connection box 51 that opens into the bottom cavity of the chassis 1 is in communication with the transfer pipe 44 , so that the carbon dioxide ejected from the transfer pipe 44 is discharged into the sample chamber 7 through the connection box 51 .

[0044] Furthermore, a rotatable jet mechanism 57 is provided inside the connection box 51. The jet mechanism 57 can evenly spray the carbon dioxide ejected from the transfer tube 44 onto the carbon dioxide absorbent inside the sample chamber 7. Specifically, Figure 5As shown, at one end of the connection box 51 inserted into the sample chamber 7, a rotatable rotating ring 56 is provided inside the connection box 51, and the rotation axis of the rotating ring 56 coincides with the axis of the connection box 51. The jet mechanism 57 is fixed to the inner ring of the rotating ring 56, so that the jet mechanism 57 can rotate around the axis of the connection box 51 along with the rotating ring 56;

[0045] In this embodiment, a slideway protruding toward the interior of the connection box 51 can be fixedly provided on the inner wall of the connection box 51, and a slide groove with a concave cross-section is provided on the outer edge of the rotating ring 56. By slidingly cooperating with the slide groove, the rotating ring 56 can be rotatably arranged inside the connection box 51. The cooperation between the slide groove and the slideway can also play a sealing role, ensuring that the carbon dioxide inside the connection box 51 is ejected from the ejection mechanism 57.

[0046] like Figure 6 As shown, the air injection mechanism 57 includes a limiting ball 571 fixedly connected to the inner ring of the rotating ring 56, such that the upper surface of the limiting ball 571 is located above the plane of the rotating ring 56, and the lower surface of the limiting ball 571 passes through the plane of the rotating ring 56 and is located below the plane of the rotating ring 56. The limiting ball 571 has a cavity inside, and a vent is formed on the lower surface of the limiting ball 571 passing through the plane of the rotating ring 56, so that carbon dioxide inside the connection box 51 can enter the cavity of the limiting ball 571;

[0047] The lower surface of the rotating ring 56 is fixedly connected to one end of a plurality of support rods 572, the other ends of which are fixedly connected to the main shaft. The main shaft is fixedly provided with a plurality of fan blades 573. The plurality of fan blades 573 are arranged in the inner cavity of the connection box 51 near one end of the transfer tube 44 and facing the end of the connection box 51.

[0048] In this embodiment, the limiting ball 571 is fixedly connected to the rotating ring 56, so that the limiting ball 571 can rotate with the rotating ring 56. When carbon dioxide is sprayed from the transfer pipe 44 into the connection box 51, the carbon dioxide flows into the cavity of the limiting ball 571 through the gaps between the multiple support rods 572. During the flow, the fan blades 573 are subjected to force to rotate, and the limiting ball 571 and the rotating ring 56 are driven to rotate through the support rods 572.

[0049] An arc-shaped hole is formed on the upper surface of the limiting ball 571. A curved plate 574 is provided in the cavity of the limiting ball 571, which matches the shape of the arc-shaped hole and slides therewith. An air outlet pipe 575 is provided through the curved plate 574 located within the range of the arc-shaped hole. One end of the air outlet pipe 575 is connected to the cavity of the limiting ball 571, and the other end is sleeved with a straight pipe 576. The axis of the straight pipe 576 is arranged parallel to the bottom surface of the sample chamber 7. The lower surface of the straight pipe 576 is provided with multiple air jets 578 along the axis of the straight pipe 576.

[0050] That is, the rotating limiting ball 571 pushes the air outlet pipe 575 through the arc hole and drives the arc plate 574 to rotate along with the limiting ball 571. During the rotation process, the arc plate 574 always blocks the arc hole of the limiting ball 571. The carbon dioxide gas in the cavity of the limiting ball 571 can only be ejected from the air outlet pipe 575 and the air jet 578 of the straight pipe 576. Since the straight pipe 576 is arranged parallel to the bottom surface of the sample chamber 7, the multiple air jets 578 on the lower surface of the straight pipe 576 can face the carbon dioxide adsorbent placed on the bottom surface of the sample chamber 7, and in the process of rotation, the carbon dioxide is evenly sprayed on all the carbon dioxide adsorbents on the bottom surface of the sample chamber 7.

[0051] Preferably, a sliding block 577 can be fixedly connected to the lower surface of the straight tube 576, and a track ring 55 concentric with it can be fixedly provided on the outer wall of the end of the connecting box 51 inserted into the sample chamber 7, and the sliding block 577 is slidably connected to the track ring 55 so that the straight tube 576 can rotate stably.

[0052] In addition, the present invention further comprises a sealing unit 6 for sealing the opening at the top of the sample chamber 7. Figure 7 As shown, a through hole is formed on the sealing cover 3 facing the sample chamber 7, and a sealing unit 6 is fixedly arranged in the through hole. By providing the sealing unit 6, the sealing cover 3 can seal the chassis 1 while simultaneously sealing the sample chamber 7 containing the carbon dioxide absorbent, thereby preventing the carbon dioxide from leaking out when carbon dioxide is injected into the sample chamber 7 and affecting the accuracy of the data;

[0053] Furthermore, in this embodiment, if Figure 7-8 As shown, the sealing unit 6 includes: a connecting ring 61 fixedly arranged on the inner wall of the through hole of the sealing cover 3, and a top cover 62 matched with the top opening of the sample chamber 7 fixedly arranged in the connecting ring 61, as shown in FIG. Figure 9 As shown, the top cover 62 is provided with an exhaust pipe 63 connected to the interior of the sample chamber 7. One end of the exhaust pipe 63 away from the top cover 62 is fixedly connected to a carbon dioxide concentration sensor 65. That is, the carbon dioxide gas in the sample chamber 7 can be discharged into the carbon dioxide concentration sensor 65 through the exhaust pipe 63. In this way, the carbon dioxide concentration in the sample chamber 7 can be detected during the process of the carbon dioxide absorbent absorbing carbon dioxide.

[0054] Preferably, a filter 64 may be provided in the exhaust pipe 63 to filter impurities carried by the carbon dioxide flowing into the carbon dioxide concentration sensor 65 , so that the carbon dioxide concentration sensor 65 can accurately detect the concentration of carbon dioxide.

[0055] The top cover 62 is provided with a sealing mechanism 69. When the top cover 62 blocks the opening at the top of the sample chamber 7, the sealing mechanism 69 can be plugged into the outer wall of the sample chamber 7 and achieves sealing between the top cover 62 and the sample chamber 7 by air pressure control.

[0056] Specifically, such as Figure 9 As shown, the sealing mechanism 69 includes a side tube 66 connected to the side wall of the exhaust pipe 63, and an outlet valve 67 is provided at one end of the side tube 66 away from the side wall of the exhaust pipe 63. The lower surface of the side tube 66 is connected to one end of the second connecting tube 68, and the other end of the second connecting tube 68 is connected to a hollow connecting ring 691. The diameter of the connecting ring 691 is smaller than the diameter of the connecting ring 61. The two are coaxially arranged and the connecting ring 691 is arranged above the connecting ring 61. The top surface of the connecting ring 691 is used for communication with the second connecting tube 68. Since the interior of the connecting ring 691 is a hollow structure, a gas flow channel can be formed along the interior of the connecting ring 691. When the outlet valve 67 is closed, the carbon dioxide gas in the exhaust pipe 63 can flow into the interior of the connecting ring 691 through the side tube 66 and the second connecting tube 68 in sequence;

[0057] A plurality of air jet tubes 693 are provided along the bottom surface of the connecting ring 691 and are fixedly connected to the bottom surface of the connecting ring 691 and communicate with the connecting ring 691. The plurality of air jet tubes 693 are preferably evenly arranged along the bottom surface of the connecting ring 691. One end of each air jet tube 693 away from the connecting ring 691 is fixedly installed in a corresponding number of limiting tubes 692. This allows carbon dioxide gas flowing into the connecting ring 691 to flow into the limiting tubes 692 through the air jet tubes 693.

[0058] A plurality of limiting tubes 692 are fixedly arranged on the top cover 62 located at the inner wall of the connecting ring 61, as shown in FIG. Figure 10 As shown, the interior of the limiting tube 692 is slidably connected to a piston 694 that matches the inner diameter of the limiting tube 692. The upper surface of the piston 694 is used to block the air injection pipe 693 in the limiting tube 692. The lower surface of the piston 694 is fixedly connected to one end of a spring 695. The other end of the spring 695 is fixedly connected to the bottom surface of the limiting tube 692. Even if the carbon dioxide ejected from the air injection pipe 693 can push the piston 694 and compress the spring 695 in the limiting tube 692,

[0059] A plurality of fixing frames 696 are fixedly set on the lower surface of the top cover 62, and the plurality of fixing frames 696 are arranged around the opening of the sample chamber 7. Each fixing frame 696 can be composed of two support rods with L-shaped cross-sections arranged opposite to each other. A sealing ring 697 with a cavity and a concave cross-section is embedded in the plurality of fixing frames 696, so that when the top cover 62 is buckled on the top opening of the sample chamber 7, the outer wall of the sample chamber 7 can be inserted into the recess of the sealing ring 697. The top cover 62 is provided with an air vent connecting the bottom surface of the limiting tube 692 and the internal cavity of the sealing ring 697, that is, when the piston 694 compresses the spring 695, the air in the lower space of the limiting tube 692 will be discharged into the sealing ring 697 through the air vent, and the sealing ring 697 will expand. In this way, when the outer wall of the sample chamber 7 is inserted into the recess of the sealing ring 697, the expanded sealing ring 697 tightly wraps the outer wall of the sample chamber 7 to achieve sealing of the sample chamber 7.

[0060] When testing the absorption rate of the carbon dioxide absorbent according to the present invention, the carbon dioxide absorbent to be tested can first be loaded onto the bottom surface of the inner cavity of the sample chamber 7, and then the sample chamber 7 can be placed on the placement plate 52. At the same time, the sample chamber 7 can be inserted into the sample chamber 7 from the end of the connection box 51 by using the carbon dioxide inlet 71 at the bottom of the sample chamber 7. At this time, the straight pipe 576 arranged parallel to the bottom surface of the sample chamber 7 can be sleeved on the outlet pipe 575, and then the sealing cover 3 is buckled, and the top cover 62 is used to block the opening at the top of the sample chamber 7. At this time, the outlet valve 67 is in an open state, and then the electronic flow controller 43 is controlled to allow carbon dioxide to pass through the first connecting pipe 42 and the transfer pipe 44, and then the carbon dioxide is injected into the sample chamber 7. The air mechanism 57 is evenly poured into the inner cavity of the sample chamber 7. According to the carbon dioxide concentration detected by the carbon dioxide concentration sensor 65, it is determined whether the air inside the device has been replaced by carbon dioxide. Then the air outlet valve 67 can be closed. Under the action of air pressure, the sealing ring 697 expands and then tightly contacts the opening of the sample chamber 7, so that the sample chamber 7 is in a closed state so that the carbon dioxide absorbent can fully react with the carbon dioxide. During the reaction process, the weight sensor set between the placement plate 52 and the sample chamber 7 detects the change in the weight of the carbon dioxide absorbent during the reaction, and the absorption rate of the carbon dioxide absorbent is obtained based on the original weight of the carbon dioxide absorbent.

[0061] The above are only preferred embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without making any creative work should fall within the scope of protection of the present invention.

Claims

1. A device for detecting the absorption rate of a carbon dioxide absorbent, comprising: A case (1) is provided with a transverse partition (11) therein and a sample chamber (7) is provided above the transverse partition (11); a sealing cover (3) is hingedly connected to the outer wall at the top of the case (1) for sealing the case (1) and the sample chamber (7); and an air intake mechanism (4) for providing carbon dioxide is provided in the case (1) below the transverse partition (11); A placement plate (52) for placing the sample chamber (7) is provided on the transverse partition (11), and a weight sensor for detecting the weight of the carbon dioxide adsorbent in the sample chamber (7) is provided on the upper surface of the placement plate (52); A connection box (51) is fixedly provided on the placement plate (52) and passes through the placement plate (52). One end of the connection box (51) is inserted into the sample chamber (7), and the other end of the connection box (51) is communicated with the air intake mechanism (4). The invention is characterized in that a rotatable rotating circle (56) is provided inside the end of the connecting box (51) inserted into the sample chamber (7), the rotating axis of the rotating circle (56) coincides with the axis of the connecting box (51), and an injection mechanism (57) is fixedly provided on the inner circle of the rotating circle (56). The injection mechanism (57) can rotate under the action of carbon dioxide provided by the air intake mechanism (4), and sprays carbon dioxide onto the carbon dioxide absorbent in the bottom surface of the sample chamber (7) during the rotation process; The air injection mechanism (57) includes a limiting ball (571) fixedly connected to the inner circle of the rotating circle (56), a cavity is provided inside the limiting ball (571), and a vent is provided on the lower surface of the plane where the rotating circle (56) is located, which is connected to the connection box (51); The lower surface of the rotating ring (56) is fixedly connected to one end of a plurality of support rods (572), and the other ends of the plurality of support rods (572) are fixedly connected to a plurality of fan blades (573) via a main shaft; An arc-shaped hole is provided on the upper surface of the limiting ball (571), and an arc-shaped plate (574) is provided in the cavity of the limiting ball (571) and matches the shape of the arc-shaped hole and slides therewith. An air outlet pipe (575) is provided through the arc-shaped plate (574) located within the range of the arc-shaped hole, and one end of the air outlet pipe (575) is connected to the cavity of the limiting ball (571), and a straight pipe (576) is provided on the other end of the air outlet pipe (575), and the axis of the straight pipe (576) is arranged parallel to the bottom surface of the sample chamber (7), and a plurality of air jets (578) are provided on the lower surface of the straight pipe (576).

2. The device for detecting the absorption rate of a carbon dioxide absorbent according to claim 1, wherein: The lower surface of the straight tube (576) is fixedly connected to a sliding block (577), and a track ring (55) concentric with the connection box (51) is fixedly provided on the outer wall of the inner end of the connection box (51) inserted into the sample chamber (7), and the sliding block (577) is slidably connected to the track ring (55).

3. The device for detecting the absorption rate of a carbon dioxide absorbent according to claim 1, wherein: The air intake mechanism (4) comprises: a carbon dioxide gas cylinder (41) arranged on the bottom surface of the inner cavity of the chassis (1); the gas outlet of the carbon dioxide gas cylinder (41) is connected to one end of a first connecting pipe (42) through a switch valve; the other end of the first connecting pipe (42) is connected to the gas inlet of an electronic flow controller (43); the gas outlet of the electronic flow controller (43) is connected to one end of a transfer pipe (44); the other end of the transfer pipe (44) is connected to a connection box (51).

4. The device for detecting the absorption rate of a carbon dioxide absorbent according to claim 1, wherein: A gasket (53) is provided on the upper surface of the placement plate (52).

5. The device for detecting the absorption rate of a carbon dioxide absorbent according to claim 1, wherein: A sealing ring (54) is fixedly provided on the outer surface of one end of the connection box (51) inserted into the sample chamber (7).

6. The device for detecting the absorption rate of a carbon dioxide absorbent according to claim 1, characterized in that: The sealing cover (3) is provided with a through hole facing the sample chamber (7), and a sealing unit (6) is fixedly arranged in the through hole. The sealing unit (6) includes a connecting ring (61) fixedly arranged on the inner wall of the through hole of the sealing cover (3), and a top cover (62) matching the top opening of the sample chamber (7) is fixedly arranged in the connecting ring (61). The top cover (62) is provided with an exhaust pipe (63) connected to the interior of the sample chamber (7), and the end of the exhaust pipe (63) away from the top cover (62) is fixedly connected to a carbon dioxide concentration sensor (65). The top cover (62) is provided with a sealing mechanism (69), and the sealing mechanism (69) is plugged into the outer wall of the sample chamber (7), and the sealing between the top cover (62) and the sample chamber (7) is achieved by air pressure control.

7. The device for detecting the absorption rate of a carbon dioxide absorbent according to claim 6, wherein: A filter screen (64) is provided in the exhaust pipe (63).

8. The device for detecting the absorption rate of a carbon dioxide absorbent according to claim 6, wherein: The sealing mechanism (69) comprises: a side tube (66) connected to the side wall of the exhaust pipe (63); an end of the side tube (66) away from the side wall of the exhaust pipe (63) is provided with an outlet valve (67); a lower surface of the side tube (66) is connected to one end of a second connecting tube (68); and the other end of the second connecting tube (68) is connected to a hollow connecting ring (691); A plurality of air injection tubes (693) are provided along the bottom surface of the connecting ring (691), which are fixedly connected to the bottom surface of the connecting ring (691) and communicated with the connecting ring (691). One end of each of the air injection tubes (693) away from the connecting ring (691) is fixedly provided in a corresponding number of limiting tubes (692). The plurality of limiting tubes (692) are fixedly provided on a top cover (62) located at the inner wall of the connecting ring (61). The inner sliding connection of the limiting tube (692) is connected to a piston (694) whose inner diameter matches that of the limiting tube (692). The upper surface of the piston (694) is used to block the air injection tube (693) in the limiting tube (692). The lower surface of the piston (694) is fixedly connected to one end of a spring (695), and the other end of the spring (695) is fixedly connected to the bottom surface of the limiting tube (692). A plurality of fixing frames (696) are fixedly arranged on the lower surface of the top cover (62), and the plurality of fixing frames (696) are arranged around the opening of the sample chamber (7). A sealing ring (697) with a cavity and a concave cross-section is embedded in the plurality of fixing frames (696). A vent hole is provided in the top cover (62) to connect the bottom surface of the limiting tube (692) and the internal cavity of the sealing ring (697).

9. The device for detecting the absorption rate of a carbon dioxide absorbent according to claim 8, wherein: The plurality of air injection pipes (693) are evenly arranged along the bottom surface of the connecting ring (691).

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