Supplementary air filtration equipment

Abstract

The embodiment of the utility model discloses a supplementary exhaust air filtering device, which includes: a fan, an exhaust hood, a chemical filter and an exhaust pipe. In this embodiment, by arranging a chemical filter in the supplementary exhaust air filtering device, the toxic substances and gases with peculiar smell contained in the inhaled gas can be filtered through the chemical filter and then discharged. At the same time, in this embodiment, it can be used as an air supply device or an exhaust device according to different experimental environments, and the application method is flexible. When the supplementary exhaust air filtering device is used as an air supply device, a hose is connected to the first interface, and the hose is extended to the outside, the exhaust port is set indoors, and the fan is turned on to replenish fresh air from the outside into the room. When the supplementary exhaust air filtering device is used as an exhaust device, the exhaust pipe is discharged to the outside, or the exhaust pipe is connected to the outside through the second interface, and the exhaust is discharged to the outside. The fan is turned on to filter the indoor exhaust gas and discharge it.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental equipment, in particular to a supplementary and exhaust air filtering device. Background Art

[0002] Some special chemical experiments or dust experiments will release some harmful gases or produce some unpleasant odors during the experiment. These harmful gases or substances that produce unpleasant odors are either strong acids and alkalis or high-risk organisms, which are not suitable for direct discharge into the external environment, or simply filtered through household filters before discharge into the external environment.

[0003] In order to solve this problem, we developed a supplementary and exhaust air filtration device for innovative experimental equipment based on chemical experiments, biological experiments, and physical experiments. Utility Model Content

[0004] In view of this, the utility model provides a supplementary exhaust air filtering device for solving the problem in the prior art that the gas generated during the experiment is not suitable for being directly discharged into the external environment.

[0005] In order to achieve one, part or all of the above purposes or other purposes, the utility model provides a supplementary exhaust air filtering device, the supplementary exhaust air filtering device comprising:

[0006] A fan, providing power for supplying and exhausting air to the supply and exhaust air filtering device;

[0007] An exhaust hood, used for sucking in gas under the action of the fan;

[0008] A chemical filter, connected to the exhaust hood, for filtering the gas sucked into the exhaust hood;

[0009] The exhaust pipe is connected to the chemical filter, and the gas passing through the chemical filter is discharged under the action of the fan.

[0010] In the supplementary exhaust air filtering device described in this embodiment, a primary filter screen is provided between the exhaust top cover and the chemical filter.

[0011] In the supplementary exhaust air filtering device described in this embodiment, an air cavity is provided between the chemical filter and the exhaust pipe.

[0012] In the supplementary exhaust air filtering device described in this embodiment, the fan is arranged between the exhaust duct and the air cavity.

[0013] In the supplementary exhaust air filtering device described in this embodiment, a first interface is provided on the exhaust top cover, and a second interface is provided on the exhaust port.

[0014] The exhaust air filtering device described in this embodiment includes a magnetic base for fixing to other devices.

[0015] The supplementary and exhaust air filtering device described in this embodiment includes an intelligent control system provided with a signal receiving port for receiving power on / off signals.

[0016] In the supplementary exhaust air filtering device described in this embodiment, the supplementary exhaust air filtering device has a flat shape.

[0017] In the supplementary exhaust air filtering device described in this embodiment, the supplementary exhaust air filtering device has a circular shape.

[0018] In the supplementary exhaust air filtering device described in this embodiment, the supplementary exhaust air filtering device has a square shape.

[0019] Compared with the prior art, the present application will have the following beneficial effects: In this embodiment, by providing a chemical filter in the air supplement and exhaust filtering device, toxic substances and odorous gases contained in the inhaled gas can be filtered through the chemical filter and then discharged.

[0020] At the same time, in this embodiment, it can be used as an air supply device or an exhaust device according to different experimental environments, and the application method is flexible. When the air supply and exhaust filter device is used as an air supply device, a hose is connected to the first interface, and the hose is extended to the outside, the exhaust port is set indoors, and the fan is turned on to supply fresh air from the outside to the room. When the air supply and exhaust filter device is used as an exhaust device, the exhaust pipe is discharged to the outside, or the exhaust pipe is connected to the outside through the second interface, and the fan is turned on to filter the indoor exhaust gas and discharge it. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of the supplementary and exhaust air filtering device of the utility model.

[0023] Figure 2 The utility model discloses a fume hood air supply and exhaust combined system.

[0024] Figure 3 The utility model discloses a combined air supply and exhaust system for a laboratory bench.

[0025] Figure 4The utility model discloses a rectangular air supply and exhaust filtering device.

[0026] Figure 5 The utility model discloses a circular air supply and exhaust filtering device.

[0027] Reference numerals:

[0028] 100. Supplementary and exhaust air filtering equipment; 200. Fume hood; 300. Laboratory bench;

[0029] 1. Fan; 2. Exhaust cover; 3. Chemical filter; 4. Exhaust duct; 5. Magnetic base; 6. Wind cavity; 7. Air inlet, 21. First interface. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1 The present application discloses a supplementary exhaust air filtering device 100, comprising: a fan 1, an exhaust top cover 2, a chemical filter 3 and an exhaust pipe 4.

[0032] The fan 1 provides power for the exhaust air filter device 100 to exhaust air.

[0033] The exhaust hood 2 is used to inhale gas under the action of the fan 1.

[0034] The chemical filter 3 is communicated with the exhaust hood 2 and is used for filtering the gas sucked in by the exhaust hood 2 .

[0035] An exhaust pipe 4 with an exhaust port is connected to the chemical filter 3, and under the action of the fan 1, the gas passing through the chemical filter 3 is discharged.

[0036] In this embodiment, by providing a chemical filter 3 in the supplementary exhaust air filtering device 100, toxic substances and gases with peculiar smell contained in the inhaled gas can be filtered through the chemical filter 3 and then discharged.

[0037] Specifically, when conducting special chemical experiments or dust experiments, some harmful gases will be released or some unpleasant odors will be produced during the experiment. Some of these gases are harmful to the human body or unacceptable to people. If they are not discharged from the laboratory, they will cause effects on the bodies of the experimenters. However, if they are directly discharged to the outside or simply discharged to the outside after filtering with a household filter, it will pollute the environment and cause adverse effects. Therefore, we use the supplementary exhaust filter device 100 in this application, turn on the fan 1, and suck the gas in the laboratory into the supplementary exhaust filter device 100 through the exhaust hood 2. After the gas is filtered through the chemical filter 3, it becomes non-toxic and odorous gas, and is finally discharged to the outside, ensuring the health of the experimenters and at the same time will not affect the environment.

[0038] In the present application, the main components of the gas in the laboratory of the laboratory user can be investigated, and the chemical filter 3 can be matched according to the different components of the waste gas to achieve filtration with maximum efficiency.

[0039] See also Figure 1 In some embodiments, in order to protect the supplementary exhaust air filtering device 100 from large particles, reduce or even prevent damage to the supplementary exhaust air filtering device 100, and improve the service life of the supplementary exhaust air filtering device 100, a primary filter is provided between the exhaust top cover 2 and the chemical filter 3. Specifically, in this embodiment, the supplementary exhaust air filtering device 100 is also provided with an air inlet 7, the exhaust top cover 2 is installed on the air inlet 7, and the primary filter is installed in the air inlet 7, which improves the safety performance of the supplementary exhaust air filtering device 100, and also protects the chemical filter 3 and the fan 1 from being damaged by foreign objects.

[0040] See also Figure 1 In some embodiments, in order to make the gas pressure uniform, an air cavity 6 is provided between the chemical filter 3 and the exhaust pipe 4. Specifically, in this embodiment, the size and shape of the air cavity 6 have a nonlinear relationship with the corresponding air volume, and the specific size and shape of the air cavity 6 can be designed according to requirements. In order to ensure normal operation, the air cavity 6 in this embodiment is sealed with silicone.

[0041] See also Figure 1 In some embodiments, the fan 1 is disposed between the exhaust pipe 4 and the air cavity 6. Specifically, the fan 1 in this embodiment is an excitation fan, which can provide a high-speed wind pressure while reducing the noise to below 65dB as much as possible.

[0042] See also Figure 1In some embodiments, the exhaust hood 2 is provided with a first interface 21, and the exhaust port is provided with a second interface. In this embodiment, the exhaust hood 2 can be connected to an external hose through the first interface 21, so that the supplementary exhaust filter device 100 can realize the supplementary air from the outside, and can also be used to inhale exhaust gas and play a filtering role. Therefore, the supplementary exhaust filter device 100 in this embodiment can be used as an air supply device or an exhaust device according to different experimental environments, and the application method is flexible. Specifically, when the supplementary exhaust filter device 100 is used as an air supply device, a hose is connected to the first interface 21, and the hose is extended to the outside, the exhaust port is set indoors, and the fan 1 is turned on to replenish fresh air from the outside into the room. When the supplementary exhaust filter device 100 is used as an exhaust device, the exhaust pipe 4 is discharged to the outside, or it is connected to the second interface and discharged to the outside, and the fan 1 is turned on to filter the exhaust gas in the room and discharge it.

[0043] See also Figure 1 In some embodiments, in order to facilitate fixing with other equipment that needs to be coordinated and to more conveniently extract exhaust gas from other equipment, the exhaust air filtering device 100 includes a magnetic base 5 for fixing with external equipment.

[0044] See also Figure 1 , Figure 2 and Figure 3 In some embodiments, the air supply and exhaust filtering device 100 includes an intelligent control system provided with a signal receiving port for receiving a power on / off signal. In this embodiment, the signal can be transmitted not only through a remote controller, but also through a mobile phone APP to achieve remote control through the mobile phone.

[0045] In some embodiments, in order to make the supplementary exhaust air filtering device 100 occupy a small space and still be able to use, move, and adjust the position in a limited space, the supplementary exhaust air filtering device 100 is flat in shape. The small shape cooperates with the magnetic base 5, and can be flexibly adsorbed on the fume hood 200 and the laboratory table 300 to form an auxiliary device.

[0046] See also Figure 4 and Figure 5 In some embodiments, different appearance products can be selected according to different supporting equipment. Specifically, the appearance of the supplementary exhaust air filtering device 100 is a circular setting, or the appearance of the supplementary exhaust air filtering device 100 is a square setting.

[0047] The working principle of the supplementary exhaust air filtering device 100 in this embodiment is described below:

[0048] In the independent operation mode of the supplementary exhaust filtering device 100, the air flow direction is to inhale gas from the exhaust hood, pass through the chemical filter 3, reach the bottom air cavity 6, pass through the excitation fan 1, and be discharged from the exhaust pipe 4, thereby realizing the gas filtering function.

[0049] In combined mode, see Figure 3 and Figure 5 The air supply and exhaust filtering device 100 is combined with the fume hood 200 to achieve the air supply filtering effect of the fume hood 200. If the external hose at the first interface 21 can be used as the air supply fan 1, it can save indoor energy consumption for the laboratory; please refer to Figure 2 and Figure 4 The exhaust air filtering device 100 is combined with the experimental bench 300 to realize the exhaust function of the experimental bench 300, and the waste gas generated during the chemical experiment on the experimental bench 300 is discharged to the outside through the external hose at the second interface, so that the indoor waste gas is discharged to the outside after filtering.

[0050] The supplementary exhaust air filtering device 100 in the embodiment of the present application has the advantages of stable performance, high structural flexibility, small space occupation, low energy consumption, etc. It is particularly suitable for laboratories with a long history and laboratories with limited space and difficulty in transformation.

[0051] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A supplementary air filter device, characterized in that: include: A fan, providing power for supplying and exhausting air to the supply and exhaust air filtering device; An exhaust hood, used for sucking in gas under the action of the fan; A chemical filter, connected to the exhaust hood, for filtering the gas sucked into the exhaust hood; An exhaust pipe with an exhaust port is connected to the chemical filter, and the gas passing through the chemical filter is discharged under the action of a fan.

2. The supplementary exhaust air filtering device according to claim 1, characterized in that: A primary filter screen is arranged between the exhaust top cover and the chemical filter.

3. The supplementary exhaust air filtering device according to claim 1, characterized in that: An air cavity is arranged between the chemical filter and the exhaust pipe.

4. The supplementary exhaust air filtering device according to claim 3, characterized in that: The fan is arranged between the exhaust pipe and the air cavity.

5. The supplementary exhaust air filtering device according to claim 1, characterized in that: The exhaust top cover is provided with a first interface.

6. The supplementary exhaust air filtering device according to claim 5, characterized in that: The air outlet is provided with a second interface.

7. The supplementary exhaust air filtering device according to any one of claims 1 to 6, characterized in that: Includes a magnetic base for attaching to other devices.

8. The supplementary exhaust air filtering device according to any one of claims 1 to 6, characterized in that: The invention comprises an intelligent control system provided with a signal receiving port for receiving a power on / off signal.

9. The exhaust air filtering device according to any one of claims 1 to 6, characterized in that: The supplementary and exhaust air filtering device is arranged in a flat shape.

10. The supplementary exhaust air filtering device according to claim 9, characterized in that: The shape of the supplementary exhaust air filtering device is circular, or the shape of the supplementary exhaust air filtering device is square.

Images