Oxygen candle oxygen generation and carbon dioxide absorption integrated device

Abstract

The utility model discloses an oxygen candle oxygen generation and carbon dioxide absorption integrated device, which belongs to the technical field of chemical oxygen generation and carbon dioxide absorption and is characterized in that an oxygen supply module comprises an oxygen candle and an exhaust port and is used for releasing oxygen to the external environment; the carbon dioxide absorption module comprises a centrifugal fan and an absorber mounting seat; after the centrifugal fan is started, air in the external environment flows through the first absorber and the second absorber, then enters the centrifugal fan and is blown out from an air outlet of the centrifugal fan. In the serial connection mode, air entering the carbon dioxide absorption module flows through the first absorber, then enters the second absorber and then enters the centrifugal fan; in the parallel connection mode, air entering the carbon dioxide absorption module is at least divided into two parts, one part of the air flows through the first absorber and then enters the centrifugal fan, and the other part of the air flows through the second absorber and then enters the centrifugal fan. According to the device, the oxygen supply module and the carbon dioxide absorption module are integrated together, so that the device is convenient to carry and use.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical oxygen production and carbon dioxide absorption, and specifically relates to an oxygen candle oxygen production and carbon dioxide absorption integrated device. Background Art

[0002] When working in relatively closed spaces such as mines and underwater vehicles, there is no ventilation to the outside world for a long time, and the carbon dioxide produced by the workers' breathing cannot be absorbed, causing the carbon dioxide concentration in the space to increase and the oxygen concentration to decrease.

[0003] At present, most oxygen supply and carbon dioxide absorption devices can supply oxygen to the closed working space and absorb the carbon dioxide generated in the working space based on the technology of chemical oxygen production and carbon dioxide absorption. However, the oxygen supply device and the carbon dioxide absorption device are currently used independently, and the two technologies are not combined in an integrated device, which makes it inconvenient to use. Utility Model Content

[0004] In view of this, the utility model provides an oxygen candle oxygen generation and carbon dioxide absorption integrated device, which integrates an oxygen supply module and a carbon dioxide absorption module for easy use.

[0005] The present invention adopts the following technical solutions:

[0006] An oxygen candle oxygen generation and carbon dioxide absorption integrated device, comprising an oxygen supply module and a carbon dioxide absorption module;

[0007] The oxygen supply module includes an oxygen candle and an exhaust port for releasing oxygen to the external environment;

[0008] The carbon dioxide absorption module comprises a centrifugal fan and an absorber mounting seat; the centrifugal fan is located above the absorber mounting seat; the absorber mounting seat is used to mount at least two absorbers for absorbing carbon dioxide, namely a first absorber and a second absorber; after the centrifugal fan is started, the air in the external environment can flow through the first absorber and the second absorber, then enter the centrifugal fan, and be blown out from the air outlet of the centrifugal fan;

[0009] The absorbers are arranged in series or in parallel. In the series arrangement, the air entering the carbon dioxide absorption module flows through the first absorber and then enters the second absorber, and then enters the centrifugal fan. In the parallel arrangement, the air entering the carbon dioxide absorption module is divided into at least two parts, one part flows through the first absorber and then enters the centrifugal fan, and the other part flows through the second absorber and then enters the centrifugal fan.

[0010] Furthermore, the first absorber and the second absorber are both drawer-type cubic structures.

[0011] Further, the first absorber and the second absorber are both curtain-type structures;

[0012] The curtain-type structure is formed by stacking multiple layers of curtain-type alkaline material and then storing and fixing them with metal mesh clips.

[0013] Furthermore, an air outlet of the centrifugal fan faces an outer wall of the oxygen candle.

[0014] Furthermore, it also includes a sealing structure;

[0015] The sealing structure is used to seal the flow path of air so that the air flows along the set flow path.

[0016] Furthermore, it also includes a control module;

[0017] The control module is electrically connected to the oxygen supply module and the carbon dioxide absorption module. The control module can automatically control the oxygen supply module to release oxygen to the external environment and automatically control the rotation speed of the centrifugal fan.

[0018] Further, the control module includes a carbon dioxide concentration detector;

[0019] The control module can control the rotation speed of the centrifugal fan according to the carbon dioxide concentration of the external environment detected by the carbon dioxide concentration detector.

[0020] Furthermore, the control module also includes an oxygen concentration detector;

[0021] The control module can control the oxygen candle to start oxygen supply according to the oxygen concentration of the external environment detected by the oxygen concentration detector.

[0022] Furthermore, the oxygen supply module is provided with more than two oxygen candles;

[0023] When the oxygen concentration detector detects that the oxygen concentration of the external environment reaches a different set oxygen concentration, the control module can control the corresponding oxygen candle to start oxygen supply.

[0024] Further, it also includes thermal insulation materials;

[0025] The heat insulating material is arranged on the inner wall of the oxygen candle oxygen generation and carbon dioxide absorption integrated device.

[0026] Beneficial effects:

[0027] 1. The integrated device of oxygen candle oxygen generation and carbon dioxide absorption comprises an oxygen supply module and a carbon dioxide absorption module; the oxygen supply module comprises an oxygen candle and an exhaust port for releasing oxygen to the external environment; the carbon dioxide absorption module comprises a centrifugal fan and an absorber mounting seat; the centrifugal fan is located above the absorber mounting seat; the absorber mounting seat is used to install at least two absorbers for absorbing carbon dioxide, namely a first absorber and a second absorber; after the fan is started, the air in the external environment can flow through the first absorber and the second absorber and then enter the centrifugal fan, and be blown out from the air outlet of the centrifugal fan; the absorbers are arranged in series or in parallel; in the series type, the air entering the carbon dioxide absorption module flows through the first absorber and then enters the second absorber, and then enters the centrifugal fan; in the parallel type, the air entering the carbon dioxide absorption module is divided into at least two parts, one part flows through the first absorber and then enters the centrifugal fan, and the other part flows through the second absorber and then enters the centrifugal fan.

[0028] In this way, the oxygen supply module and the carbon dioxide absorption module are integrated together for easy carrying and use; moreover, the absorbers are arranged in series, the airflow is smooth, and the pressure gradient changes are very uniform, and the absorbers are arranged in parallel, the airflow rate is faster, which can speed up the air circulation speed in the confined space.

[0029] 2. Both the first absorber and the second absorber are drawer-type cubic structures, which can be very convenient for loading and unloading the absorbers.

[0030] 3. Both the first absorber and the second absorber are curtain structures, which are formed by stacking multiple layers of curtain alkaline materials and fixing them with metal mesh clips. In this way, the resistance of gas flow through the curtain structure is relatively small compared with naturally stacked absorbent particles of the same mass. Therefore, under the same operating power of the centrifugal fan, the centrifugal fan can obtain a larger air volume, which can speed up the air circulation speed in the confined space.

[0031] 4. The air outlet of the centrifugal fan faces the outer wall of the oxygen candle. In this way, the centrifugal fan can not only suck the air in the environment into the carbon dioxide absorption module to reduce the carbon dioxide concentration, but also use the centrifugal fan to blow the air passing through the carbon dioxide absorption module to the outer wall of the oxygen candle, which plays a role in heat dissipation for the oxygen candle.

[0032] 5. The sealing structure is used to seal the air flow path, so that the air flows along the set flow path. In this way, the absorption efficiency of carbon dioxide and the heat dissipation efficiency of oxygen candles can be higher.

[0033] 6. The heat-insulating material is arranged on the inner wall of the integrated device of oxygen candle oxygen generation and carbon dioxide absorption, which can prevent the heat generated by the oxygen candle from scalding the operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A three-dimensional structural schematic diagram of an oxygen candle oxygen generation and carbon dioxide absorption integrated device provided by the utility model;

[0035] Figure 2 The air flow path in the device when the absorbers are arranged in series;

[0036] Figure 3 for Figure 2 A cross-sectional view of

[0037] Figure 4 The air flow path within the device when the absorbers are arranged in parallel;

[0038] Figure 5 for Figure 1 Schematic diagram of the internal structure of the integrated device for oxygen generation and carbon dioxide absorption of medium oxygen candles;

[0039] Figure 6 for Figure 1 A top view of the integrated device for oxygen generation and carbon dioxide absorption of medium oxygen candles;

[0040] Figure 7 for Figure 1 Rear view of the integrated device for oxygen generation and carbon dioxide absorption of medium oxygen candles;

[0041] Figure 8 A curtain absorber provided in an embodiment of the utility model;

[0042] Fig. 9 for Figure 8 Schematic diagram of the structure of the stacking of intermediate alkaline material layers;

[0043] Fig.10 for Fig. 9 Schematic diagram of the structure of a single-layer alkaline material layer;

[0044] Fig.11 is a top view of a single alkaline material layer;

[0045] Fig.12 is a front view of a single layer of alkaline material;

[0046] Among them, 1-top cover plate, 2-control panel, 3-alarm device, 4-oxygen concentration detector, 5-carbon dioxide concentration detector, 6-independent switch, 7-main power switch, 8-handle, 9-door panel, 10-door panel fixing clamp, 11-universal wheel, 12-indicator light, 13-insulating material, 14-upper fixed support, 15-lower fixed support, 16-support partition, 17-first oxygen candle, 18-second oxygen candle, 19-oxygen candle system, 20-centrifugal fan, 21-fixed frame, 22-first absorber, 23-second absorber, 24-oxygen candle triggering contact, 25-oxygen candle positioning assembly, 26-rear panel, 27-airflow partition. DETAILED DESCRIPTION

[0047] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0048] Reference Figure 1-Figure 12 , an oxygen candle oxygen generation and carbon dioxide absorption integrated device, which comprises an oxygen supply module and a carbon dioxide absorption module, wherein:

[0049] The oxygen supply module includes an oxygen candle and an exhaust port for releasing oxygen to the external environment; the carbon dioxide absorption module includes a centrifugal fan 20 and an absorber mounting seat; the centrifugal fan 20 is located above the absorber mounting seat; the absorber mounting seat is used to install at least two absorbers for absorbing carbon dioxide, namely a first absorber 22 and a second absorber 23; after the fan is started, the air in the external environment can flow through the first absorber 22 and the second absorber 23 and then enter the centrifugal fan 20, and be blown out from the air outlet of the centrifugal fan 20; the absorbers are arranged in series or in parallel; in the series type, the air entering the carbon dioxide absorption module flows through the first absorber 22 and then enters the second absorber 23, and then enters the centrifugal fan 20; in the parallel type, the air entering the carbon dioxide absorption module is divided into at least two parts, one part flows through the first absorber 22 and then enters the centrifugal fan 20, and the other part flows through the second absorber 23 and then enters the centrifugal fan 20, such as Figure 4 As shown, the air entering the carbon dioxide absorption module can be divided into two air streams by setting the air flow baffle 27. It is understandable that in the parallel type, the air flow baffle 27 can be flexibly set according to the number of absorbers and the position of each absorber to form corresponding multiple air streams.

[0050] In this way, the oxygen supply module and the carbon dioxide absorption module are integrated together for easy carrying and use; moreover, the absorbers are arranged in series, the airflow is smooth, and the pressure gradient changes are very uniform, and the absorbers are arranged in parallel, the airflow rate is faster, which can speed up the air circulation speed in the confined space.

[0051] Specifically, in this embodiment, the oxygen candle oxygen generation and carbon dioxide absorption integrated device is composed of a stainless steel box structure, a universal wheel 11 is installed at the bottom of the integrated device, and the integrated device also includes a power module, a control module and a sealing structure, wherein the oxygen supply module includes an oxygen candle system 19, a detachable top cover plate 1 is installed on the top of the oxygen supply module, and the oxygen candle system 19 includes two independent oxygen candles, namely a first oxygen candle 17 and a second oxygen candle 18, the two oxygen candles are respectively positioned in the box by an upper fixed support 14 and a lower fixed support 15, and the lower fixed support 15 is provided with an oxygen candle initiation contact 24 and an oxygen candle positioning assembly 25, the oxygen candle initiation contact 24 is electrically connected to the control module, and is used to start the oxygen candle, and the oxygen candle positioning assembly 25 is used to position the oxygen candle. The control module and the power module are located in the upper right part of the integrated device, and the control module is provided with a detachable rear panel 26 with heat dissipation holes, and the carbon dioxide absorption module is located in the lower right part of the integrated device, and a support partition 16 is provided between the control module and the carbon dioxide absorption module. The power module includes a main power switch 7 and an independent switch 6 of the control module. The main power switch 7 interface is installed on the right side of the stainless steel box shell and is connected to the external power interface through a power cord to power the entire device. After turning on the main power switch 7, the control module requires the independent switch 6 to start. The independent switch 6 is installed on the right side of the control panel of the control module. A button switch is selected. After starting the independent switch 6, the operating status of the entire integrated device can be monitored on the control panel 2 of the control module.

[0052] More specifically, the centrifugal fan 20 is fixed by a fixing frame 21, and the air inlet of the centrifugal fan 20 is located directly above the first absorber 22 and the second absorber 23. When the centrifugal fan 20 is in operation, the air flows from the air inlet at the bottom of the integrated device from bottom to top, and then the air after the carbon dioxide is absorbed by the absorber is blown out through the air outlet of the centrifugal fan 20. The air blown out from the air outlet of the centrifugal fan 20 flows out to the external environment from the air outlet provided on the integrated device. In this embodiment, air outlets for air outflow are provided at the upper and lower parts of the integrated device. The air blown out from the air outlet of the centrifugal fan 20 can be discharged from the upper and lower air outlets, and the oxygen generated by the oxygen candle is discharged from the upper air outlet.

[0053] In this embodiment, the first absorber 22 and the second absorber 23 can both be configured as a drawer-type cubic structure, including a shell, a cover and a handle 8. Moreover, a detachable door panel 9 is provided on the shell of the entire integrated device through a door panel fixing clamp 10, and the absorber can be placed in the absorber frame serving as the absorber mounting seat by opening the door panel 9. The first absorber 22 and the second absorber 23 can also both be a curtain-type structure, which is formed by stacking multiple layers of curtain-type alkaline material layers and then storing and fixing them with metal mesh clips. In a possible embodiment, the first absorber 22 and the second absorber 23 can be configured as any one of a drawer-type cubic structure and a curtain-type structure. Figure 8 to Figure 12 Multiple layers of curtain-type alkaline material are stacked to form a curtain-type structure, which can reduce the resistance to air flow.

[0054] As an improvement, in this embodiment, the air outlet of the centrifugal fan 20 faces the outer wall of the oxygen candle, so that the centrifugal fan 20 can not only suck the air in the environment into the carbon dioxide absorption module to reduce the carbon dioxide concentration, but also use the centrifugal fan 20 to blow the air passing through the carbon dioxide absorption module to the outer wall of the oxygen candle, which plays a role in heat dissipation for the oxygen candle. In addition, in this embodiment, the integrated device is also provided with a sealing structure for sealing the carbon dioxide air flow channel in the integrated device. The sealing structure can make the air flow according to the set flow path, so that all the air sucked into the carbon dioxide absorption module passes through the absorber and then is discharged from the air outlet of the integrated device to the external environment, thereby improving the carbon dioxide absorption effect and improving the heat dissipation efficiency of the oxygen candle.

[0055] Specifically, the sealing structure can use sealing strips to seal the gaps in the carbon dioxide absorption module that are prone to air leakage, thereby ensuring the sealing of the entire gas flow channel; moreover, a heat insulating material 13 is provided on the inner wall of the integrated device to prevent the heat generated by the oxygen candle from scalding the operator.

[0056] In this embodiment, in addition to the above-mentioned control panel 2, the control module is also provided with an oxygen concentration detector 4, a carbon dioxide concentration detector 5, a data acquisition card, a controller and a single-chip microcomputer. The control of the control module is divided into two control modes: manual and automatic. The manual mode can manually and autonomously adjust the rotation speed of the centrifugal fan 20 and the ignition state of the first oxygen candle 17 and the second oxygen candle 18. In the automatic mode, the oxygen concentration detector 4 and the carbon dioxide concentration detector 5 output data to the data acquisition card, the output end of the data acquisition card is connected to the input end of the controller, and the controller transmits the processed output signal to the single-chip microcomputer. The output end of the single-chip microcomputer is respectively connected to the oxygen supply module and the carbon dioxide absorption module, and the oxygen supply and carbon dioxide absorption are independently and automatically controlled.

[0057] Specifically, the control panel 2 will display the oxygen concentration and carbon dioxide concentration in the external environment in real time. For the oxygen supply module, in manual mode, you can touch the control screen on the control panel 2 to ignite or extinguish the oxygen candle in the oxygen supply module; in automatic mode, the oxygen concentration detector 4 captures the oxygen concentration in the external environment in real time and compares it with the preset oxygen concentration. The preset low oxygen concentration value is P, and the preset high oxygen concentration value is Q. When the oxygen concentration in the external environment is greater than Q, the oxygen supply module is not started; when the oxygen concentration in the external environment is greater than P and less than Q, the oxygen supply module is started, and the first oxygen candle 17 is "ignited" to release oxygen. When the first oxygen candle 17 is "burned out", if the oxygen concentration in the external environment is still greater than P and less than Q, the second oxygen candle 18 is "ignited"; when the oxygen concentration in the external environment is less than P, the control module will prompt to replace the oxygen candle (the alarm device 3 set next to the control panel 2 will prompt). In addition, an indicator light 12 is set next to the control panel 2. When an oxygen candle is placed on the lower fixed support 15, the indicator light 12 will be always on, and when no oxygen candle is placed on the lower fixed support 15, the indicator light 12 will be always dark.

[0058] For the carbon dioxide absorption module, in manual mode, the operating speed of the centrifugal fan 20 can be selected as low speed and high speed on the control panel 2; in automatic mode, the carbon dioxide concentration in the external environment is captured in real time by the carbon dioxide concentration detector 5, and compared with the preset carbon dioxide concentration. The preset low value of the carbon dioxide concentration is R, the preset middle value of the carbon dioxide concentration is S, and the preset maximum value of the carbon dioxide concentration is T. When the carbon dioxide concentration in the external environment is less than R, the centrifugal fan 20 will not start; when the carbon dioxide concentration in the external environment is greater than R and less than S, the centrifugal fan 20 runs at a low speed; when the carbon dioxide concentration is greater than S and less than T, the centrifugal fan 20 runs at a high speed; when the carbon dioxide concentration is greater than T, the control module will prompt to replace the carbon dioxide absorbent tank (the alarm device 3 set next to the control panel 2 will prompt).

[0059] It should be pointed out that the automatic control of the control module in this embodiment belongs to the prior art; in addition, the carbon dioxide absorption module is not limited to the chemical absorption method in this embodiment, and biological absorption method and physical adsorption method, etc. may also be used in possible embodiments. Moreover, it is not necessary to use the centrifugal fan 20 when applying the chemical absorption method. The use of the centrifugal fan 20 in this embodiment in combination with the chemical absorption method can improve the carbon dioxide absorption efficiency and improve the degree of automatic control of the integrated device.

[0060] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An integrated device for oxygen candle oxygen generation and carbon dioxide absorption, characterized in that: Including oxygen supply module and carbon dioxide absorption module; The oxygen supply module includes an oxygen candle and an exhaust port for releasing oxygen to the external environment; The carbon dioxide absorption module comprises a centrifugal fan and an absorber mounting seat; the centrifugal fan is located above the absorber mounting seat; the absorber mounting seat is used to mount at least two absorbers for absorbing carbon dioxide, namely a first absorber and a second absorber; after the centrifugal fan is started, the air in the external environment can flow through the first absorber and the second absorber, then enter the centrifugal fan, and be blown out from the air outlet of the centrifugal fan; The absorbers are arranged in parallel; In the parallel type, the air entering the carbon dioxide absorption module is divided into at least two parts, one part flows through the first absorber and then enters the centrifugal fan, and the other part flows through the second absorber and then enters the centrifugal fan; The first absorber and the second absorber are both curtain-type structures; The curtain-type structure is formed by stacking multiple layers of curtain-type alkaline material and fixing them with metal mesh clips; the curtain-type structure is in a cubic shape.

2. The integrated device for oxygen candle oxygen generation and carbon dioxide absorption according to claim 1, characterized in that: The air outlet of the centrifugal fan faces the outer wall of the oxygen candle.

3. An oxygen candle oxygen generation and carbon dioxide absorption integrated device according to any one of claims 1 to 2, characterized in that: Also includes a sealing structure; The sealing structure is used to seal the flow path of air so that the air flows along the set flow path.

4. The integrated device for oxygen candle oxygen generation and carbon dioxide absorption according to claim 3, characterized in that: Also includes a control module; The control module is electrically connected to the oxygen supply module and the carbon dioxide absorption module. The control module can automatically control the oxygen supply module to release oxygen to the external environment and automatically control the rotation speed of the centrifugal fan.

5. The integrated device for oxygen candle oxygen generation and carbon dioxide absorption according to claim 4, characterized in that: The control module includes a carbon dioxide concentration detector; The control module can control the rotation speed of the centrifugal fan according to the carbon dioxide concentration of the external environment detected by the carbon dioxide concentration detector.

6. The integrated device for oxygen candle oxygen generation and carbon dioxide absorption according to claim 5, characterized in that: The control module also includes an oxygen concentration detector; The control module can control the oxygen candle to start oxygen supply according to the oxygen concentration of the external environment detected by the oxygen concentration detector.

7. The integrated device for oxygen candle oxygen generation and carbon dioxide absorption according to claim 6, characterized in that: The oxygen supply module is provided with more than two oxygen candles; When the oxygen concentration detector detects that the oxygen concentration of the external environment reaches a different set oxygen concentration, the control module can control the corresponding oxygen candle to start oxygen supply.

8. An oxygen candle oxygen generation and carbon dioxide absorption integrated device according to any one of claims 1 to 2 and 4 to 7, characterized in that: It also includes thermal insulation materials; The heat insulating material is arranged on the inner wall of the oxygen candle oxygen generation and carbon dioxide absorption integrated device.

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