Carbon dioxide absorption device suitable for small closed space

Abstract

The invention discloses a carbon dioxide absorption device suitable for a small closed space, which belongs to the technical field of carbon dioxide absorption, is of a cylindrical structure as a whole, is suspended for use, and comprises a medicament box, a top cover arranged above the medicament box and an electrical box arranged below the medicament box, a through hole communicated with the outside is formed in the bottom of the electrical box; the electrical box can be connected with an external power supply, so that a fan arranged in the electrical box absorbs external gas containing carbon dioxide and conveys the gas to the medicament box; the agent box is used for containing a carbon dioxide absorbent; carbon dioxide in the gas is absorbed by the carbon dioxide absorbent and is discharged through a gas outlet formed in the top cover; the fan is transversely installed on the fixing frame, an air outlet of the fan is horizontally arranged and connected with an air outlet elbow on the fixing frame, and the fan is fixedly connected with the electrical cabinet through the fixing frame. And the air outlet elbow on the fixing frame is communicated with the medicament box and is used for guiding outlet air of the fan to enter the medicament box. The device meets the use requirement in a narrow space.

Description

Technical Field

[0001] The invention belongs to the technical field of carbon dioxide absorption, and in particular relates to a carbon dioxide absorption device suitable for a small confined space. Background Art

[0002] The concentration of carbon dioxide in confined spaces is a key indicator for assessing air quality. Excessively high concentrations can lead to deteriorating air quality and adversely affect the human body. Therefore, timely and effective removal of carbon dioxide from confined spaces is crucial to protecting human life.

[0003] Currently, CO2 absorption devices are primarily used to remove CO2 from confined spaces. Commonly used are floor-standing mobile units or fixed units. These devices are relatively large and require high power. While existing devices perform well in large and medium-sized confined spaces, especially when there is ample space and energy supply, they are less suitable for smaller confined spaces with limited space, insufficient energy supply, and dense personnel. They fail to meet the demand for smaller and lower-energy devices. Summary of the Invention

[0004] In order to solve the problems existing in the above-mentioned background technology, the present invention discloses a carbon dioxide absorption device suitable for small confined spaces, which realizes miniaturization and low power consumption of the device from the design perspective, meeting the use requirements of small confined spaces for carbon dioxide absorption devices.

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

[0006] A carbon dioxide absorption device suitable for use in a small, enclosed space. The device is cylindrical in structure and is suspended for use. The device comprises a medicine box, a top cover disposed above the medicine box, and an electrical box disposed below the medicine box.

[0007] The bottom of the electrical box is provided with a through hole communicating with the outside world;

[0008] The electrical box can be connected to an external power supply, so that a blower disposed inside the electrical box absorbs gas containing carbon dioxide from the outside and delivers it to the medicine box;

[0009] The medicine box is used to contain a carbon dioxide absorbent; the carbon dioxide in the gas is absorbed by the carbon dioxide absorbent and discharged through the gas outlet provided on the top cover;

[0010] The fan is horizontally mounted on the fixing frame, the air outlet of the fan is horizontally arranged and connected to the air outlet elbow on the fixing frame, and the fan is fixedly connected to the electrical box through the fixing frame;

[0011] The air outlet elbow on the fixing frame is connected to the medicine box and is used to guide the air outlet of the fan into the medicine box.

[0012] Furthermore, a hanging bracket is included, which is arranged on the side wall of the medicine box and / or the electrical box for hanging.

[0013] Furthermore, a muffler is installed at the air inlet of the fan, and the muffler is filled with sound-absorbing material to reduce the noise of the fan.

[0014] Furthermore, the outer wall of the top cover is connected to the medicine box using a hinge, and the outer wall of the top cover is connected to the medicine box using a lock.

[0015] Furthermore, a gas distribution plate with a plurality of through holes is provided at the bottom of the medicine box for uniformly distributing the airflow; the carbon dioxide absorbent is placed on the gas distribution plate;

[0016] A plurality of through holes are provided on the bottom plate of the electrical box for allowing external gas to enter the electrical box.

[0017] Furthermore, the fan is a turbine fan; there are multiple air outlets, which are evenly arranged on the side wall of the top cover.

[0018] Beneficial effects

[0019] (1) The fan in the carbon dioxide absorption device suitable for a small enclosed space of the present invention can be a turbine fan, and the fan is installed horizontally, and the air outlet of the fan is connected to the air outlet elbow on the fixed frame, so that the installation area of ​​the fan is more compact, the space utilization rate is higher, and the overall volume of the device is reduced. The device can be hung in a small enclosed space for use, meeting its use requirements in a small space.

[0020] (2) The side walls of the reagent box and the electrical box of the carbon dioxide absorption device of the present invention, which are suitable for small enclosed spaces, are provided with hanging brackets, which further facilitates the hanging use thereof in a small space.

[0021] (3) The carbon dioxide absorption device suitable for small enclosed spaces of the present invention is equipped with a muffler on the air inlet of the fan, and noise is reduced by filling the muffler with a sound-absorbing material.

[0022] (4) The top cover of the carbon dioxide absorption device suitable for small enclosed spaces of the present invention is provided with a plurality of air outlets evenly arranged along the side walls. Combined with the plurality of through holes provided on the bottom plate of the electrical box, the area of ​​the air intake and outlet channels of the device is increased, thereby increasing the efficiency of the device in processing carbon dioxide gas.

[0023] (5) The low-resistance carbon dioxide absorbent used in the carbon dioxide absorption device suitable for small enclosed spaces of the present invention has the characteristics of high absorption efficiency, low energy consumption and good economy under the same operating conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall appearance of the device of the present invention;

[0025] Figure 2 Schematic diagram of the internal structure of the device of the present invention;

[0026] Figure 3 It is a schematic diagram of the fixing frame structure of the device of the present invention;

[0027] Figure 4 Schematic diagram of the top cover structure of the device of the present invention;

[0028] Figure 5 This is a schematic diagram of the suspension bracket structure of the device of the present invention;

[0029] Among them, 1-top cover, 2-hinge, 3-hanging bracket, 4-medicine box, 5-electrical box, 6-switch, 7-lock, 8-electrical connector, 9-fixing plate, 10-bottom plate, 11-fan, 12-muffler, 13-air outlet elbow, 14-fixing frame, 15-gas distribution plate. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to the accompanying drawings: It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive, and therefore the present invention is not limited to the embodiments described in the specific embodiments. Any other implementation methods derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

[0031] like Figure 1-5 As shown, a carbon dioxide absorption device suitable for a small enclosed space includes: a medicine box 4, a top cover 1 arranged above the medicine box 4, and an electrical box 5 arranged below the medicine box 4. A plurality of through holes communicating with the outside world are provided on the bottom plate 10 of the electrical box 5; these are used to allow external gas to enter the device. The electrical box 5 is equipped with an electrical connector to connect to an external power supply, so that the built-in fan 11 absorbs the gas containing carbon dioxide from the outside world and transports it to the medicine box 4. A gas distribution plate 15 with a plurality of through holes is provided at the bottom of the medicine box 4 for uniformly distributing the airflow. At the same time, a low-resistance carbon dioxide absorbent (such as a filter element containing lithium hydroxide) is placed on the gas distribution plate 15. The gas transported from the electrical box 5 passes through the low-resistance carbon dioxide absorbent, and the carbon dioxide therein is absorbed, and the remaining gas is discharged from the air outlet of the top cover 1.

[0032] Example 1

[0033] The front of the electrical box 5 has a switch 6 installed in the opening; the outer wall is fixed with a suspension bracket 3 by welding. A certain number of fixing plates 9 are vertically welded to the inner side wall of the electrical box 5. The lower end of the fixing plate 9 is used to install the bottom plate 10, and the upper end is used to install the fixing bracket 14 of the fan 11.

[0034] The base plate 10 is a circular boss structure with several holes in the center that connect to the outside world and serve as air intake for the device. A relatively low-power turbine fan 11 is installed horizontally, with its turbine shaft positioned vertically and its outlet positioned horizontally. This makes the area where the fan 11 is installed more compact, improving space utilization and reducing the size of the electrical box 4, meeting the requirements for the device's use in confined spaces.

[0035] As an example, an air outlet elbow 13 is welded on the fixing frame 14, and the size of the air outlet elbow 13 matches the size of the air outlet of the fan 11, which is used to guide the air outlet of the fan 11 to smoothly enter the medicine box 4, reduce the generation of eddy currents during the flow process, and reduce energy consumption.

[0036] As an example, a muffler 12 is installed at the air inlet of the fan 11, and the muffler 12 is fastened to the air inlet by screws. The muffler 12 adopts a porous plate structure, and the space between the inner and outer plates is filled with sound-absorbing material to reduce the noise of the fan 11.

[0037] As an example, the device further includes a lock 7 and a hinge 2 , the outer wall of the top cover 1 is connected to the medicine box 4 using the hinge 2 , and the outer side wall of the top cover 1 is connected to the medicine box 4 using the lock 7 .

[0038] As an example, there are several air outlets on the top cover 1, which are evenly arranged on the side wall of the top cover 1.

[0039] Example 2

[0040] The overall structure of the device is cylindrical. The electrical box 5 is cylindrical, and the medicine box 4 is open at both ends. Both are made of 1.5mm thick stainless steel. The suspension bracket 3 is saddle-shaped, with a through-hole of a specified size machined into it, and is welded to the outer wall of the medicine box 4.

[0041] As an example, an annular mounting seat is welded to the inner wall of the medicine box 4 as a connecting structure. A certain number of through holes are processed on the annular mounting seat. The medicine box 4 can be fixed together with the electrical box 5 and the gas distribution plate 15 using screws through the annular mounting seat.

[0042] As an example, the wall of the electrical box 5 has a through-hole of a specified size for mounting and securing the switch 6; another through-hole of a specified size is also formed on the wall for mounting the electrical connector 8. A hanging bracket 3 is also welded to the outer wall of the electrical box 5. This hanging bracket 3 is mounted in the same orientation as the hanging bracket 3 welded to the outer wall of the reagent box 4. Bolts, hooks, etc. are used to suspend and secure the carbon dioxide absorption device suitable for small, confined spaces within the confined space, meeting the requirements for the device's use in confined spaces.

[0043] As an example, four "L"-shaped fixing plates 9 are welded on one side of the boss structure of the base plate 10 inside the electrical box 5, and bolt holes are processed on the fixing plates 9. The bottom of the "L"-shaped fixing plate 9 is used for installing and fixing the base plate 10, and the top of the "L"-shaped fixing plate 9 is installed with a fixing frame 14 with an overall circular structure for installing and fixing the fan 11.

[0044] As an example, the gas distribution plate 15 is a circular sheet metal structure with a certain number of through holes processed in the middle for uniformly distributing the airflow.

[0045] As an example, the bottom plate 10 is stamped from stainless steel with a thickness of 1 mm.

[0046] As an example, the top cover 1 is made of stainless steel with a thickness of 1 mm, and a certain number of long strip air outlets are stamped on the side of the top cover 1 for discharging the purified air.

[0047] How it works

[0048] When using the device, first, the device is hung and fixed on the side wall of the enclosed space, and the electrical connector 8 is connected to the external power supply;

[0049] Then, open the lock 7, lift up the top cover 1, put the low-resistance carbon dioxide absorbent into the medicine box 4, close the top cover 1 and lock the lock 7;

[0050] Finally, press the switch 6 to start the carbon dioxide absorption device and perform the carbon dioxide removal work; after the work is completed, press the switch 6 to stop the carbon dioxide absorption device.

[0051] Experimental results:

[0052] In order to verify the performance of the device, the device was hung and fixed at 4m 3The side wall of the sealed test chamber is cleaned, and the filter element containing lithium hydroxide is placed in the medicine box; the carbon dioxide analyzer in the sealed chamber is turned on, and after the analyzer displays normally, the test chamber door is closed, and carbon dioxide gas is started to be introduced into the test chamber at a ventilation rate of 1.35L / min. When the carbon dioxide concentration in the test chamber reaches 0.5%, the carbon dioxide absorption device of the present invention is turned on and the test data is recorded. As the device continues to operate, the carbon dioxide concentration in the test chamber gradually drops to the lowest point, and then begins to rise slowly. After 14 hours, the carbon dioxide concentration in the test chamber reaches 0.5% again, and the test ends. During the test process, the power of the device is always maintained below 15W. The test results can meet the design requirements and achieve a good carbon dioxide control effect.

[0053] In summary, the above are embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A carbon dioxide absorption device suitable for small confined spaces, characterized in that: The carbon dioxide absorption device suitable for a small enclosed space has an overall cylindrical structure and is used in a suspended manner, and comprises a medicine box (4), a top cover (1) arranged above the medicine box (4), and an electrical box (5) arranged below the medicine box (4); The bottom of the electrical box (5) is provided with a through hole communicating with the outside world; The electrical box (5) can be connected to an external power supply, so that a fan (11) disposed inside the electrical box (5) absorbs external gas containing carbon dioxide and transports it to the medicine box (4); The medicine box (4) is used to contain a carbon dioxide absorbent; the carbon dioxide in the gas is absorbed by the carbon dioxide absorbent and discharged through the gas outlet provided on the top cover (1); The fan (11) is installed transversely on the fixing frame (14), the air outlet of the fan (11) is arranged horizontally and connected to the air outlet elbow (13) on the fixing frame (14), and the fan (11) is fixedly connected to the electrical box (5) through the fixing frame (14); The air outlet elbow (13) on the fixing frame (14) is connected to the medicine box (4) and is used to guide the air outlet of the fan (11) into the medicine box (4).

2. A carbon dioxide absorption device suitable for a small confined space according to claim 1, characterized in that: It also includes a hanging bracket (3), which is arranged on the side wall of the medicine box (4) and / or the electrical box (5) for hanging.

3. The carbon dioxide absorption device suitable for a small confined space according to claim 1, characterized in that: The air inlet of the fan (11) is equipped with a muffler (12), and the muffler (12) is filled with a sound-absorbing material to reduce the noise of the fan (11).

4. The carbon dioxide absorption device suitable for a small confined space according to claim 1, characterized in that: The outer wall of the top cover (1) is connected to the medicine box (4) using a hinge (2), and the outer wall of the top cover (1) is connected to the medicine box (4) using a lock (7).

5. A carbon dioxide absorption device suitable for a small confined space according to any one of claims 1 to 4, characterized in that: A gas distribution plate (15) with a plurality of through holes is provided at the bottom of the medicine box (4) for uniformly distributing the airflow; the carbon dioxide absorbent is placed on the gas distribution plate (15); A plurality of through holes are provided on the bottom plate (10) of the electrical box (5) for allowing external gas to enter the electrical box (5).

6. A carbon dioxide absorption device suitable for a small confined space according to any one of claims 1 to 4, characterized in that: The fan is a turbine fan; there are a plurality of air outlets, which are evenly arranged on the side wall of the top cover (1).

Images