Single poison filtering fan

Abstract

The utility model provides a single poison filtering fan, which relates to the field of air purification equipment and comprises a fan shell, a portable battery, an air conveying pipeline and a turbofan. The gas conveying pipeline is provided with two gas inlets and a gas outlet, the two gas inlets of the gas conveying pipeline are located in the outer wall of the fan shell, the gas inlets are detachably connected with an external gas filtering box, the gas outlet of the gas conveying pipeline is communicated with the gas inlet of the turbofan, and the portable battery supplies power to the turbofan; the outer wall of the fan shell extends to form a protective enclosure, and the two air inlets of the air conveying pipeline and the poison filtering box matched with the two air inlets are located on the inner side of the protective enclosure. The gas conveying pipeline adopts a symmetrical equivalent air duct system, and the first gas conveying pipe body and the second gas conveying pipe body adopt double gas conveying pipe bodies with equal length and equal diameter, so that the gas flow resistance of the two gas filtering boxes is consistent, and asynchronous loss is avoided. The overall service life of the filter box is prolonged and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of air purification equipment technology, and is particularly suitable for stand-alone filtration and ventilation equipment in chemical, fire protection, and emergency rescue scenarios. Background Technology

[0002] A gas filter cartridge contains a specific type of activated carbon agent that removes dust and toxic gases from the air through physical adsorption and chemical reactions, allowing the gas to be inhaled. It is typically used in conjunction with a gas mask to adsorb different toxic gases. Gas filter cartridges come in various specifications depending on the working environment. For example, organic gas filter cartridges are widely used in painting, organic experiments, and petrochemical environments, while acidic and inorganic gas filter cartridges are more widely used in chemical plants, and so on.

[0003] Most existing filter fans adopt a dual filter box parallel design, but there are two major defects: (1) The duct structure is unreasonable. The traditional parallel pipeline has uneven airflow distribution due to the difference in length / diameter, which causes the two filter boxes to have different utilization rates and need to be replaced at the same time, resulting in waste; (2) The filter boxes are easily damaged. Exposed filter boxes are easily damaged by collisions in movement or narrow spaces, leading to the risk of toxic gas leakage.

[0004] Patent application CN202220336447.6 discloses an adapter mechanism for a portable air filtration device and a filter cartridge. The mechanism includes an adapter cover and a connecting tube. The adapter cover fits into the housing of the portable air filtration device, sealing the filter chamber within the housing. The surface of the adapter cover has at least one recessed adapter groove, with an air hole at the bottom communicating with the filter chamber of the portable air filtration device. The inner wall of the adapter groove has threads that mate with the threaded interface of a commercially available filter cartridge. The outer wall of the connecting tube has external threads that mate with the threads of the adapter groove. One end of the connecting tube has a snap-fit ​​seat that mates with a universal snap-fit ​​type of a commercially available filter cartridge, and the other end has a flared structure that mates with a snap-fit ​​type of a commercially available filter cartridge. The beneficial technical effects are: a reasonable structure that allows the portable air filtration device to be used with existing filter cartridges, enabling users to filter toxins while carrying the portable air filtration device.

[0005] However, the aforementioned patented technologies cannot solve the technical problems in the prior art, nor do they provide any technical inspiration for solving the problems in the prior art. Utility Model Content

[0006] The purpose of this invention is to provide a single-unit filtration fan to solve the problems mentioned in the background art.

[0007] (1) How to improve the problem of uneven airflow distribution and the difference in utilization rate of the two filter boxes in the existing filter fan;

[0008] (2) How to reduce the risk of damage to exposed filter cartridges due to collisions during movement or in confined spaces through structural improvements.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A single-unit filtration fan;

[0011] Includes the fan housing, portable battery, gas pipeline, and turbine fan;

[0012] The fan housing has a cavity inside, and the portable battery, air supply pipeline and turbine fan are all housed inside the fan housing. The air supply pipeline has two air inlets and one air outlet. The two air inlets of the air supply pipeline are located on the outer wall of the fan housing. The air inlets are detachably connected to the external filter box. The air outlet of the air supply pipeline is connected to the air inlet of the turbine fan. The air outlet of the turbine fan extends outside the fan housing. The portable battery powers the turbine fan.

[0013] The outer wall of the fan casing is protected by a protective enclosure, and the two air inlets of the air supply pipeline and the corresponding filter cartridges are located inside the protective enclosure.

[0014] Based on the above technical solution, the present invention can be further improved as follows.

[0015] Furthermore, the exhaust pipe of the turbine fan is equipped with a quick-release connector that mates with an external air duct.

[0016] Furthermore, the gas transmission pipeline includes a first gas transmission pipe body and a second gas transmission pipe body. The beginnings of the first gas transmission pipe body and the second gas transmission pipe body are respectively connected to two air inlets, and the ends of the first gas transmission pipe body and the second gas transmission pipe body are both connected to air outlets. The diameters and lengths of the first gas transmission pipe body and the second gas transmission pipe body are the same.

[0017] Furthermore, it also includes two filter protective caps, each with several through holes on its surface. The two filter protective caps are detachably connected to two air inlets and correspond one-to-one with the filter cartridges. The filter protective caps can cover the air inlets of the filter cartridges and cooperate with the air inlets.

[0018] Furthermore, it also includes two spacer rings, each corresponding to one of the two filter caps, which are placed between the filter caps and the air inlet of the filter cartridge.

[0019] Furthermore, the inner wall of the gas inlet of the gas pipeline is provided with threads that mate with the filter cartridge.

[0020] With this structure, the gas supply pipeline adopts a symmetrical equal-volume air duct system. The first and second gas supply pipes are double gas supply pipes of equal length and diameter, ensuring that the airflow resistance of the two filter cartridges is consistent, with a utilization rate difference of less than 5%, avoiding asynchronous losses. This extends the overall lifespan of the filter cartridges by more than 20% and reduces maintenance costs.

[0021] Furthermore, the protective enclosure and the filter cap constitute a dual collision protection structure for this single-unit filter fan. The protective enclosure can block lateral impacts to the filter cartridge; the filter cap is a rigid cap with through holes, covering the air inlet of the filter cartridge to prevent frontal impacts. This reduces the collision damage rate of the filter cartridge.

[0022] This invention creatively solves the long-standing problems of uneven utilization and vulnerability in the filtration equipment industry through a symmetrical air duct and double protection design. It is particularly suitable for high-risk scenarios such as emergency rescue and chemical inspection, offering significant economic benefits and safety value. Attached Figure Description

[0023] Figure 1 This is one of the perspective views of the usage state of this single-unit filtration fan embodiment.

[0024] Figure 2 This is the second perspective view of the usage state of this single-unit filtration fan embodiment (the top cover of the fan housing is omitted in the figure).

[0025] Figure 3 This is the third perspective view of the embodiment of the single-unit filtration fan (the top cover of the fan housing, the filter box, and the filter protective cap are omitted in the figure).

[0026] Figure 4 This is the fourth perspective view of an embodiment of the single-unit filtration fan (the top cover of the fan housing, the filter box, and the filter protective cap are omitted in the figure).

[0027] Figure 5 This is a perspective view of the protective cap for filtering air in this single-unit filtering fan embodiment.

[0028] Explanation of the labels in the diagram:

[0029] Fan housing - 100; Protective enclosure - 110; Top cover - 120; Base - 130; Air supply pipeline - 200; Air inlet - 210; First air supply pipe body - 230; Second air supply pipe body - 240; Quick-release connector - 250; Filter box - 300; Filter protective cap - 400; Through hole - 410; Spacer ring - 420; Turbine fan - 600; Portable battery - 500. Detailed Implementation

[0030] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0031] The terms “vertical,” “horizontal,” “left,” “right,” and similar expressions used in this document are for illustrative purposes only and do not represent the only possible implementation.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] Please refer to Figure 1 to Figure 5 .

[0034] This single-unit air filter fan includes a fan housing 100, a portable battery 500, an air supply pipeline 200, a turbine fan 600, and two air filter protective caps 400.

[0035] The fan housing 100 includes an upper cover 120 and a lower base 130. A cavity is formed between the upper cover 120 and the base 130. The portable battery 500, the air supply pipeline 200 and the turbine fan 600 are all installed inside the fan housing 100.

[0036] The air supply pipeline 200 has two air inlets 210 and one air outlet (not shown in the figure). The two air inlets 210 of the air supply pipeline 200 are located on the lower end face of the fan housing 100. The air supply pipeline 200 includes a first air supply pipe body 230 and a second air supply pipe body 240. The beginnings of the first air supply pipe body 230 and the second air supply pipe body 240 are respectively connected to the two air inlets 210, and the ends of the first air supply pipe body 230 and the second air supply pipe body 240 are both connected to the air outlet. The diameter and length of the second air supply pipe 240 are the same. The inner wall of the air inlet 210 of the air supply pipe 200 is provided with a thread that matches the filter box 300, so that the air inlet 210 can be detachably connected to the external filter box 300. The air outlet of the air supply pipe 200 is connected to the air inlet 210 of the turbine blower 600. The air outlet pipe of the turbine blower 600 extends out of the upper side of the upper cover 120 of the blower housing 100. The air outlet pipe of the turbine blower 600 is fitted with a quick-release connector 250.

[0037] A protective enclosure 110 extends from the lower end face of the base 130 of the fan housing 100. The two air inlets 210 of the air supply pipeline 200 and the filter cartridge 300 that cooperate with them are located inside the protective enclosure 110. The height of the protective enclosure 110 is greater than 2 / 3 of the height of the filter cartridge 300.

[0038] The surface of the filter protective cap 400 has several through holes 410. The two filter protective caps 400 and the two air inlets 210 are detachably connected to the filter box 300 and correspond to each other. The filter protective cap 400 can cover the air inlet 210 of the filter box 300 and cooperate with the air inlet 210.

[0039] The filter protective cap 400 is also equipped with a spacer ring 420, which is placed between the filter protective cap 400 and the air inlet 210 of the filter box 300.

[0040] The portable battery 500 uses high-temperature resistant lithium battery cells. The capacity retention rate of the portable battery 500 is >90% under 80℃ operating conditions. The portable battery 500 is installed in the cavity of the fan housing 100. Together with the control circuit, the portable battery 500 supplies power to the turbine fan 600. The control circuit integrates a pressure sensor and automatically increases the speed to compensate for the air volume when the filter box 300 is clogged.

[0041] In use, screw the two filter cartridges 300 into the threads of the air inlet 210 of the air supply line 200, and secure the filter protective cap 400 to the air inlet end of the filter cartridge 300. After starting the filter fan of this unit, the airflow passes through the double filter cartridges 300, the air supply line 200 with equal diameter pipe, the turbine fan 600, and the quick-release connector in sequence to output clean airflow.

[0042] When the pressure sensor detects a 15% increase in wind resistance, the control circuit automatically increases the fan speed by 20%.

[0043] In an 80°C environment, the portable battery 500 retains 92% of its capacity and provides continuous power for 6 hours; the protective enclosure can also block the effects of heat radiation on the filter cartridge 300.

[0044] The above description is only one embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the principle of the present utility model, and these should also be considered to fall within the protection scope of the present utility model.

Claims

1. A single filter fan, characterized in that: it comprises a fan shell (100), a portable battery (500), a gas conveying pipeline (200) and a turbine fan (600); the fan shell (100) is internally provided with a cavity, the portable battery (500), the gas conveying pipeline (200) and the turbine fan (600) are all arranged in the fan shell (100), the gas conveying pipeline (200) is provided with two gas inlets (210) and one gas outlet, the two gas inlets (210) of the gas conveying pipeline (200) are located on the outer wall of the fan shell (100), the gas inlets (210) are detachably connected with the external filter box (300), the gas outlet of the gas conveying pipeline (200) is in communication with the gas inlet (210) of the turbine fan (600), the gas outlet pipe of the turbine fan (600) extends out of the fan shell (100), and the portable battery (500) supplies power for the turbine fan (600).

2. The single filter fan according to claim 1, characterized in that: a quick-release connector (250) matched with the external air pipe is mounted on the gas outlet pipe of the turbine fan (600).

3. The single filter fan according to claim 1, characterized in that: the gas conveying pipeline (200) comprises a first gas conveying pipe body (230) and a second gas conveying pipe body (240), the initial ends of the first gas conveying pipe body (230) and the second gas conveying pipe body (240) are respectively connected with the two gas inlets (210), the terminal ends of the first gas conveying pipe body (230) and the second gas conveying pipe body (240) are both connected with the gas outlet, and the diameters and lengths of the first gas conveying pipe body (230) and the second gas conveying pipe body (240) are communicated.

4. The single filter fan according to claim 1, characterized in that: it further comprises two filter protection caps (400), the filter protection cap (400) is provided with a plurality of through holes (410) on the surface, the two filter protection caps (400) are matched with the two filter boxes (300) in a one-to-one correspondence, and the filter protection cap (400) can be covered on the filter box (300) gas inlet (210) matched with the gas inlet (210).

5. The single filter fan according to claim 4, characterized in that: it further comprises two separation rings (420), the two separation rings (420) are matched with the two filter protection caps (400) in a one-to-one correspondence, and the separation ring (420) is placed between the filter protection cap (400) and the filter box (300) gas inlet (210).

6. The single filter fan according to claim 1, characterized in that: the inner wall of the gas inlet (210) of the gas conveying pipeline (200) is provided with a thread matched with the filter box (300). ​ ​ ​ ​ ​ ​ ​ ​

Images