Intelligent dehumidifying device for explosion-proof cavity
By using motor-controlled active and driven rollers to drive the filter screen to roll, combined with an exhaust fan to sweep away dust, the problem of filter screen clogging in explosion-proof dehumidifiers is solved, achieving continuous dehumidification and easy disassembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HEFEI SWITCH FACTORY
- Filing Date
- 2023-09-11
- Publication Date
- 2026-07-31
AI Technical Summary
When existing explosion-proof dehumidifiers for mining filter flammable and explosive dust and gases through a filter screen, the dust adheres to the filter screen, causing the filter holes to become clogged and reducing the dehumidification effect.
The system uses a motor to control the rotation of the active roller, which in turn uses a driven roller and belt to make multiple filter screens rotate in a cycle. An exhaust fan is installed inside the filter screen to clean the dust adhering to the surface, ensuring that air continuously passes through the filter.
It maintains the dehumidification effect of the dehumidification device, prevents filter clogging, ensures smooth filter movement, and simplifies the disassembly process of the dust control components.
Smart Images
Figure CN117469735B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of dehumidifier technology, specifically to an explosion-proof intelligent dehumidifier with a cavity. Background Technology
[0002] Dehumidifiers, also known as moisture extractors, dryers, or dehumidifiers, are generally divided into two main categories: household dehumidifiers and industrial dehumidifiers. A typical dehumidifier consists of a compressor, heat exchanger, fan, water tank, casing, and controller. During operation, the fan draws humid air into the machine, where it passes through the heat exchanger. At this point, water molecules in the air condense into water droplets, and the treated, dry air is expelled from the machine. This cycle continues, maintaining a suitable relative humidity level indoors.
[0003] Explosion-proof dehumidifiers are used in flammable and explosive environments. During construction in mines, the deeper one goes, the higher the temperature and humidity become, necessitating the use of explosion-proof dehumidifiers. When using explosion-proof dehumidifiers, it is necessary to prevent electrical sparks that could lead to explosions of flammable gases, dust, liquids, or gas mixtures.
[0004] A mining explosion-proof dehumidification device with Chinese patent document publication number CN215672319U uses partitions to separate the internal structure of the device body, making the internal structure compact. The mounting frame fixes the explosion-proof fan motors, and multiple explosion-proof fan motors drive the fan impellers to draw in more air from the mine, thus improving the dehumidification efficiency. The first filter screen improves the safety of the equipment by filtering out flammable and explosive dust and gases in the air. The air drawn in passes through the compressor, evaporator and condenser, turning the high-temperature and high-pressure gas into a low-temperature and low-pressure liquid. Due to the large temperature difference in the air inside the machine, water droplets are quickly condensed and finally enter the water tank to reduce the air humidity and achieve the effect of dehumidification.
[0005] However, in the process of implementing the above technical solution, the following technical problems were found: Existing explosion-proof dehumidifiers for mining use filter flammable and explosive dust and gases through a first filter to ensure safety. However, when dust adheres to the filter screen along with the high humidity air, it can clog the filter holes, thus hindering the passage of moisture-laden air through the filter screen. Over long-term use, this will reduce the dehumidification effect of the dehumidifier. Summary of the Invention
[0006] To overcome the shortcomings of existing mine explosion-proof dehumidifiers that filter flammable and explosive dust and gases through filters, which are easily affected by moisture in the air, causing dust to adhere to the filters and clog the filter holes, thus reducing the dehumidification effect, this application provides an explosion-proof cavity intelligent dehumidification device. This device uses a motor to control the rotation of a drive roller, which in turn controls the cyclical rolling of multiple filters via a driven roller and two belts. Two exhaust fans are installed at the bottom inside the multiple filters to clean the dust-laden filters from the inside out, allowing humid air to continuously pass through the multiple filters at the top, ensuring the dehumidification effect of the dehumidification device.
[0007] The technical solution adopted by the embodiments of this application to solve its technical problem is: An explosion-proof intelligent dehumidification device for a cavity includes a dehumidification device body and a dust control component. The dehumidification device body is used to remove moisture from the air. The dust control component is located on one side of the top of the dehumidifier body and is used to filter flammable and explosive dust and gases that enter the dehumidifier body with the air. The dust control component filters dust and gas at the top and automatically removes adhering dust from its bottom.
[0008] In one possible implementation, the dust control component includes a fixed part and a rolling part, wherein the rolling part switches up and down the area on the dust control component used for filtering dust and gas, and the fixed part provides a mounting point for the rolling part.
[0009] In one possible implementation, the rolling part includes a driving roller and a driven roller. A motor is mounted to one end of the driving roller. A belt is provided between both ends of the driving roller and the driven roller. The outer surfaces of the two belts are mounted with the same filter screen. The filter screen is made of plastic and there are multiple filter screens, which surround the belts.
[0010] In one possible implementation, the filter screen includes a frame and a mesh panel, the mesh panel being embedded inside the frame, both long sides of the frame being machined into bevels, the two bevels on the frame being arranged in parallel, and the bevels of two adjacent filter screen frames fitting together.
[0011] In one possible implementation, the fixed part includes a mounting bracket, a storage groove is machined on the top of one side of the mounting bracket, a support plate is assembled to the bottom inner wall of the mounting bracket, two exhaust fans are assembled to one side surface of the support plate, the driving roller and the driven roller are rotatably connected to the top and bottom of the mounting bracket respectively, the motor is assembled to the inside of the storage groove, and the two exhaust fans are both disposed between the filter screens on both sides of the driven roller.
[0012] In one possible implementation, a plurality of connecting rods are fixedly connected between the two belts, the diameter of each connecting rod being smaller than the thickness of the belt, and the plurality of connecting rods being parallel to each other.
[0013] In one possible implementation, the top of the dehumidification device body is provided with four exhaust fans, the top of the mounting bracket is machined with four air inlets, the bottom of the mounting bracket is machined with two air outlets, the four exhaust fans are respectively located on one side of the four air inlets, the two exhaust fans are located on one side of the two air outlets, and the two exhaust fans and the four exhaust fans are respectively located on both sides of the mounting bracket.
[0014] In one possible implementation, an opening is machined on one side of the mounting bracket, which faces the outside of the dehumidifier body, and a plurality of the filters located at the opening of the mounting bracket move from top to bottom.
[0015] In one possible implementation, two positioning corner plates are internally assembled and connected on one side of the main body of the dehumidifier. A louver is provided on one side of the two positioning corner plates. The dust control component is located between the louver and the two positioning corner plates. The two positioning corner plates are symmetrically arranged on the two long sides of the mounting bracket. The louver is assembled and connected inside the main body of the dehumidifier. The two positioning corner plates and one louver are respectively supported on both sides of the mounting bracket.
[0016] The beneficial effects of this application are as follows: First, in this solution, the active roller is controlled to rotate by a motor, and multiple filter screens are controlled to circulate and roll by a driven roller and two belts. Two exhaust fans are set at the bottom inside the multiple filter screens to clean the filter screens with dust adhering to their surfaces from the inside to the outside. This allows air with moisture to continuously pass through the multiple filter screens at the top, which helps to ensure the dehumidification effect of the dehumidification device. Secondly, in this solution, by setting multiple parallel connecting rods between the two belts, multiple filter screens can cross the arc surfaces of the driven roller and the active roller with the help of the two belts and a driven roller during the rotation of the motor-controlled active roller. During this process, the two belts will not move relative to each other, which helps to ensure the smooth movement of multiple filter screens.
[0017] Thirdly, in this solution, two positioning angle plates and a louver are installed inside the main body of the dehumidifier to position the dust control component. When it is necessary to remove the dust control component from the main body of the dehumidifier, simply remove the louver, which is simple and convenient. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the louvers of the present invention detached from the main body of the dehumidification device; Figure 3 This is a schematic diagram of the dust control component of the present invention; Figure 4 This is a schematic diagram of the structure of the mounting bracket of the present invention; Figure 5 This is a schematic diagram of the connection structure between the exhaust fan and the mounting bracket of the present invention; Figure 6 This is a schematic diagram of the connection structure of the belt, driving roller, and driven roller of the present invention; Figure 7 This is a schematic diagram showing the position and structure of the filter screen and exhaust fan of the present invention; Figure 8 For the present invention Figure 7 Enlarged schematic diagram of part A in the middle.
[0019] Attached Figure Descriptions: 1. Louver; 2. Main body of dehumidifier; 3. Positioning corner plate; 4. Dust control component; 401. Mounting bracket; 402. Filter screen; 403. Storage slot; 404. Motor; 405. Air inlet; 406. Air outlet; 407. Exhaust fan; 408. Supporting horizontal plate; 409. Driven roller; 410. Driven roller; 411. Belt; 412. Connecting rod; 5. Exhaust fan. Detailed Implementation
[0020] The technical solution in this application embodiment is to solve the problems mentioned in the background art, and the overall idea is as follows: Example 1
[0021] This embodiment describes the specific structure of an explosion-proof cavity intelligent dehumidification device, which can be referred to for details. Figures 1-8 As shown, the device includes a dehumidifier body 2 for removing moisture from the air and a dust control component 4 for filtering flammable and explosive dust and gas that enter the dehumidifier body 2 with the air. The dust control component 4 includes a fixed part and a rolling part. The rolling part includes a drive roller 409 and a driven roller 410. A motor 404 is assembled and connected to one end of the drive roller 409. A belt 411 is provided between both ends of the drive roller 409 and the driven roller 410. The same filter screen 402 is assembled and connected to the outer surface of the two belts 411. Multiple filter screens 402 are provided. Among them, such as Figure 2 , Figure 3 and Figure 4The dust control component 4 shown is located on one side of the top of the dehumidification device body 2. Multiple filters 402 are surrounded around the belt 411. By using the fixed part to provide mounting points for the rolling part, the top of the dust control component 4 can filter dust and gas. When the motor 404 controls the active roller 409 to rotate, and the driven roller 410 drives the two belts 411 to roll, the filter 402 with dust on the top can move to the bottom, which is convenient for cleaning the dust on the filter 402 at the bottom, while the top continues to filter. Meanwhile, the filter screen 402 is made of plastic. When the two belts 411 drive multiple filter screens 402 to circulate, the filter screen 402 that moves to the arc area of the drive roller 409 and the driven roller 410 can be bent to ensure that the filtration area on the filter screen 402 is sufficient and will not affect the movement of the filter screen 402 from one side of the drive roller 409 and the driven roller 410 to the other side. like Figure 4 As shown, the fixed part includes a mounting bracket 401, a storage groove 403 is machined on the top of one side of the mounting bracket 401, a support plate 408 is assembled and connected to the bottom inner wall of the mounting bracket 401, and two exhaust fans 407 are assembled and connected to one side surface of the support plate 408. In the process of the motor 404 controlling the rotation of the active roller 409, the belt 411 connected between the active roller 409 and the driven roller 410 can be used to control the active roller 409 and the driven roller 410 to rotate respectively and be connected to the top and bottom of the mounting bracket 401. Meanwhile, since the motor 404 is assembled inside the storage slot 403, the motor 404 can avoid interfering with the installation work after the mounting bracket 401 is assembled into the dehumidifier body 2. Secondly, such as Figure 7 As shown, both exhaust fans 407 are positioned between the filter screens 402 on both sides of the driven roller 410. When the exhaust fans 407 are working, they draw out the dehumidified air from inside the dehumidifier body 2. After the air passes through the multiple filter screens 402 near the inside of the dehumidifier body 2, it blows the dust attached to the multiple filter screens 402 away from the inside of the dehumidifier body 2 to the outside, thereby achieving the effect of removing dust. The filter screens 402 that have completed the dust removal work move from one side of the bottom of the driven roller 410 to the other side, waiting for subsequent use. like Figure 2 As shown, four exhaust fans 5 are installed on the top of the main body 2 of the dehumidifier, and as... Figure 4 As shown, the top of the mounting bracket 401 is machined with four air inlets 405, while the bottom of the mounting bracket 401 is machined with two air outlets 406. The four exhaust fans 5 are located on one side of the four air inlets 405. When the four exhaust fans 5 work to draw air from outside the dehumidifier body 2 into the dehumidifier body 2, the air first passes through multiple filters 402 near the outside of the dehumidifier body 2 at the top, so that explosive dust and gas are filtered out. The two exhaust fans 407 are located on one side of the two air outlets 406 to exhaust the air inside the dehumidifier body 2 to the outside. The two exhaust fans 407 and the four exhaust fans 5 are located on both sides of the mounting bracket 401, so that the exhaust fans 407 can be connected to the mounting bracket 401 as one unit, which facilitates subsequent cleaning work.
[0022] By adopting the above technical solution: The above design incorporates a dust control component 4 inside the main body 2 of the dehumidifier. The dust control component 4 includes a mounting bracket 401 and multiple filters 402. When four exhaust fans 5 draw air from the outside of the main body 2 of the dehumidifier to the inside, the air carrying flammable and explosive dust and gas passes through the multiple filters 402 near the outside of the main body 2 of the dehumidifier, so that the dust and gas are filtered by the filters 402. The motor 404 controls the rotation of the active roller 409, and controls the multiple filters 402 to circulate and roll by means of the driven roller 410 and two belts 411, so that the multiple filters 402 that have collected dust and gas move to the bottom, while the clean multiple filters 402 are replenished to the target position to ensure continuous filtration effect. When the multiple filters 402 carrying dust and gas move to the bottom, the two exhaust fans 407 installed inside the multiple filters 402 draw in air that has completed the dehumidification work from inside the dehumidification device body 2, so that the air sweeps away the dust on the multiple filters 402. After the multiple filters 402 that have completed the cleaning work move across the bottom of the driven roller 410 to the back of the two exhaust fans 407, they can be replenished to the top, waiting for subsequent filtration of flammable and explosive dust and gas. This makes it easier to keep the amount of air passing through the multiple filters 402 from the top constant, ensuring the dehumidification effect of the dehumidification device body 2 on the air. Example 2
[0023] Based on Example 1, this example describes the specific structure of filter 402, such as... Figure 7 and Figure 8 As shown, filter screen 402 includes a frame and a mesh panel, with the mesh panel embedded inside the frame; Among them, such as Figure 8 As shown, both long sides of the frame are machined into bevels, and the two bevels on the frame are set in parallel. The bevels of the frame on two adjacent filter screens 402 fit together. When multiple filter screens 402 are filtering flammable and explosive dust and gas, dust can be prevented from passing between two filter screens 402. Secondly, such as Figure 3As shown, an opening is machined on one side of the mounting bracket 401, which faces the outside of the dehumidification device body 2. Multiple filters 402 located at the opening of the mounting bracket 401 move from top to bottom. The multiple filters 402 located at the top filter flammable and explosive dust and gas. When they are driven to the bottom by the circulating rolling belt 411, two exhaust fans 407 located at the bottom inside the multiple filters 402 blow the dust on the filters 402 away towards the opening. Furthermore, such as Figure 6 As shown, multiple connecting rods 412 are fixedly connected between the two belts 411. By setting the diameter of the multiple connecting rods 412 to be smaller than the thickness of the belts 411, interference between the surface of the connecting rods 412 and the surfaces of the driven rollers 410 and 409 can be avoided when the belts 411 roll with the driving rollers 409 and 410. While ensuring that the multiple connecting rods 412 are parallel to each other, the multiple connecting rods 412 are used to support the two belts 411, which can prevent the plastic frame of the filter screen 402 from moving relative to each other during deformation.
[0024] By adopting the above technical solution: The above design, by setting multiple parallel connecting rods 412 between the two belts 411, allows multiple filter screens 402 to circulate and roll during the rotation of the drive roller 409 controlled by the motor 404, with the help of the two belts 411 and a driven roller 410. When the filter screens 402 cross the arc surfaces of the driven roller 410 and the drive roller 409, the two belts 411 will not move relative to each other, which helps to ensure the smooth movement of the multiple filter screens 402. Example 3
[0025] Based on Example 1, this example describes the specific structure of the main body 2 of the dehumidification device, such as... Figure 2 As shown, there are two positioning corner plates 3 internally assembled on one side of the main body 2 of the dehumidifier, and louvers 1 are provided on one side of the two positioning corner plates 3. The dust control component 4 is located between the louver 1 and the two positioning angle plates 3. The two positioning angle plates 3 are symmetrically arranged on the two long sides of the mounting bracket 401. When the louver 1 is assembled and connected to the inside of the dehumidifier body 2, the two positioning angle plates 3 and the louver 1 can be used to support the two sides of the mounting bracket 401 respectively, and the dust control component 4 can be fixed inside the dehumidifier body 2. When it is necessary to remove the dust control component 4 from the inside of the dehumidifier body 2, it is only necessary to remove the louver 1 from the dehumidifier body 2.
[0026] The specific work steps are as follows: S1. Four exhaust fans 5 draw air from outside the dehumidifier body 2 into the interior. The air passes through multiple filters 402 at the top of the opening of the mounting bracket 401. Flammable and explosive dust and gases are filtered out, while the air with moisture enters the dehumidifier body 2 through the four air inlets 405 on the mounting bracket 401 to wait for dehumidification. S2. The dehumidified air is drawn into the mounting bracket 401 by the exhaust fan 407 through the air outlet 406. As the air passes through the multiple filters 402 at the bottom of the opening of the mounting bracket 401, the dust on the filters 402 is cleaned. S3, the motor 404 controls the rotation of the active roller 409, and controls the multiple filter screens 402 to circulate and roll by means of the driven roller 410 and two belts 411, so that the multiple filter screens 402 that have collected dust and gas move to the bottom, while the multiple clean filter screens 402 are replenished to the target position.
[0027] By adopting the above technical solution: The above design assembles two positioning angle plates 3 inside the dehumidifier body 2, so that the mounting bracket 401 of the dust control component 4 rests against the two positioning angle plates 3. After the louver 1 is assembled into the dehumidifier body 2, the dust control component 4 can be fixed inside the dust control component 4. When disassembling, the louver 1 can be removed, which is simple and convenient.
[0028] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.
Claims
1. An explosion-proof intelligent dehumidification device for a cavity, characterized in that, include: The main body of the dehumidifier (2) is used to remove moisture from the air; The dust control component (4) is located on one side of the top of the dehumidifier body (2) and is used to filter flammable and explosive dust and gas that enter the dehumidifier body (2) with the air. The dust control component (4) filters dust and gas at the top and automatically removes adhering dust by means of its bottom. The dust control component (4) includes a fixed part and a rolling part. The rolling part switches up and down the area on the dust control component (4) used for filtering dust and gas. The fixed part provides a mounting point for the rolling part. The rolling part includes a drive roller (409) and a driven roller (410). A motor (404) is mounted and connected to one end of the drive roller (409). A belt (411) is provided between both ends of the drive roller (409) and the driven roller (410). The outer surfaces of the two belts (411) are mounted and connected to the same filter screen (402). The filter screen (402) is made of plastic and there are multiple filter screens (402) surrounding the belts (411). The filter screen (402) includes a frame and a mesh plate, the mesh plate being embedded inside the frame, and both long sides of the frame being machined into bevels; The two inclined surfaces on the frame are arranged in parallel, and the inclined surfaces of the frames on two adjacent filter screens (402) are in contact with each other; The fixed part includes a mounting bracket (401), a storage groove (403) is machined on the top of one side of the mounting bracket (401), a support plate (408) is assembled and connected to the bottom inner wall of the mounting bracket (401), and two exhaust fans (407) are assembled and connected to one side surface of the support plate (408); wherein, the driving roller (409) and the driven roller (410) are rotatably connected to the top and bottom of the mounting bracket (401) respectively, the motor (404) is assembled and connected inside the storage groove (403), and the two exhaust fans (407) are both arranged between the filter screens (402) on both sides of the driven roller (410).
2. The explosion-proof intelligent dehumidification device for a cavity as described in claim 1, characterized in that: A plurality of connecting rods (412) are fixedly connected between the two belts (411), and the diameter of the plurality of connecting rods (412) is smaller than the thickness of the belts (411); Among them, the multiple connecting rods (412) are parallel to each other.
3. The explosion-proof cavity intelligent dehumidification device as described in claim 1, characterized in that: The dehumidification device body (2) is provided with four exhaust fans (5) on the top, the mounting bracket (401) is provided with four air inlets (405) on the top, and the mounting bracket (401) is provided with two air outlets (406) on the bottom. The four exhaust fans (5) are located on one side of the four air inlets (405), the two exhaust fans (407) are located on one side of the two air outlets (406), and the two exhaust fans (407) and the four exhaust fans (5) are located on both sides of the mounting bracket (401).
4. The explosion-proof intelligent dehumidification device for a cavity as described in claim 1, characterized in that: The mounting bracket (401) has an opening on one side, which faces the outside of the dehumidifier body (2); Among them, the plurality of filters (402) located at the opening of the mounting bracket (401) move from top to bottom.
5. The explosion-proof cavity intelligent dehumidification device as described in claim 1, characterized in that: The main body (2) of the dehumidifier has two internally assembled corner plates (3) on one side, and louvers (1) are provided on one side of the two corner plates (3). The dust control component (4) is located between the louver (1) and the two positioning corner plates (3). The two positioning corner plates (3) are symmetrically arranged on the two long sides of the mounting bracket (401). The louver (1) is assembled and connected to the inside of the dehumidification device body (2). The two positioning corner plates (3) and the louver (1) are respectively supported on both sides of the mounting bracket (401).