Cabin inlet air filtering device

Abstract

The utility model provides a cabin inlet air filtering device. The cabin inlet air filtering device comprises two winding devices arranged on the two sides of an air inlet of a cabin, filtering cotton and a removing mechanism. The winding device comprises a dustproof box, a roller and a motor; the roller is rotatably mounted on the dustproof box, and the motor can drive the roller to rotate; two ends of the filter cotton are respectively mounted on the two rollers; the cleaning mechanism can clean dust on the surface of the filter cotton. The motor drives the rollers to wind the first section of used filter cotton on the rollers, and the unused filter cotton on the other roller is moved to the air inlet of the cabin; in this way, the filter cotton can be replaced; maintenance is more convenient, and maintenance efficiency is improved. After the filter cotton is used, the two motors are controlled to rotate reversely, and sand and dust on the filter cotton are removed through the removing mechanism, so that the filter cotton can be utilized for many times, and the maintenance period of the filter cotton is prolonged; and all the maintenance work of personnel can be completed on the rack, so that the maintainability of the unit is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cabin air intake filtering, in particular to a cabin air intake filtering device. Background Art

[0002] At present, when onshore wind turbines are operating in the northwest region, there is a lot of sand and dust in the cabin, so filter cotton is installed at the bottom of the cabin. However, in actual use, when encountering sandstorm weather, maintenance personnel need to manually replace the filter cotton, otherwise the air inlet pressure will increase, and long-term operation will affect the ventilation and heat dissipation capacity of the unit.

[0003] In addition, maintenance personnel have little operating space to perform replacement operations at the bottom of the cabin cover, which makes maintenance operations inconvenient and affects maintenance efficiency. Utility Model Content

[0004] In view of the above problems existing in the prior art, the technical problem to be solved by the utility model is that in actual use, when encountering sandstorm weather, the maintenance personnel need to manually replace the filter cotton, otherwise the air inlet pressure will increase, and long-term operation will affect the ventilation and heat dissipation capacity of the unit. In addition, the maintenance personnel have little operating space at the bottom of the cabin cover for replacement, which is inconvenient and affects the maintenance efficiency.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solution: a cabin air inlet filter device, comprising:

[0006] Two winding devices arranged on both sides of the cabin air inlet include: a dust box, a roller and a motor; the roller is rotatably mounted on the dust box, and the motor can drive the roller to rotate;

[0007] Filter cotton, the two ends of which are respectively mounted on the two drums; and

[0008] The cleaning mechanism can clean the sand and dust on the filter cotton.

[0009] Preferably, the cleaning mechanism comprises: an adsorption box and a brush; the filter cotton passes through the adsorption box; the brush is installed on the adsorption box and is located on both sides of the filter cotton to brush away the sand and dust on the filter cotton.

[0010] Preferably, a mesh hole is provided on one side of the adsorption box parallel to the filter cotton, and an adsorption tube connected to the adsorption box is installed on the other side of the adsorption box parallel to the filter cotton.

[0011] Preferably, a plurality of adsorption tubes are arranged at intervals in the width direction of the filter cotton.

[0012] Preferably, the adsorption box is provided with limit rods on both sides of the filter cotton in the length direction, and the two limit rods are respectively located on both sides of the filter cotton and are in sliding contact with the filter cotton.

[0013] Preferably, a pre-tensioning mechanism is also included, and the pre-tensioning mechanism includes: a pre-tensioning rod and a pre-tensioning spring; the pre-tensioning rod is slidably installed on the dustproof box, and the pre-tensioning rod is slidably abutted against the filter cotton, and the pre-tensioning spring applies a force to the pre-tensioning rod toward the filter cotton.

[0014] Compared with the prior art, the utility model has at least the following advantages:

[0015] In the utility model, one end of the filter cotton is installed on one of the rollers, the other end of the filter cotton is wound on the other roller and fixed, and the first section of the filter cotton is arranged at the air inlet of the cabin, so that the sand and dust in the air sucked into the cabin can be filtered; when the filter cotton needs to be replaced, the two motors are operated, and the motors drive the rollers to wind the first section of used filter cotton on the rollers, and the unused filter cotton on the other roller is moved to the air inlet of the cabin; in this way, the replacement of the filter cotton can be completed, which can improve the ability of the unit to quickly restore ventilation and heat dissipation after a sandstorm passes; maintenance is more convenient and the efficiency of maintenance is improved. When the filter cotton is used up, the two motors are controlled to reverse, and the maintenance personnel carry a portable vacuum cleaner and connect it to the adsorption tube to generate negative pressure in the adsorption box. The dust on the filter cotton is removed by the brush of the cleaning mechanism and the huge pressure difference generated, so that the filter cotton can be used multiple times, extending the maintenance cycle of the filter cotton. When replacing a whole roll of filter cotton, the edge of the filter cotton can be connected to the pre-rolled connecting cloth on the drum, and then the motor is used to drag the drum to drag the new filter cotton to the top of the air inlet. The maintenance personnel can complete all the work on the frame, which improves the maintainability of the unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation of the utility model, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0017] Figure 1 This is a three-dimensional diagram of a cabin air inlet filter device provided in an embodiment of the utility model.

[0018] Figure 2 This is a front view of the cabin air inlet filter device provided in an embodiment of the utility model.

[0019] Figure 3 This is a partial structural diagram of the winding device and pre-tightening mechanism provided in the embodiment of the utility model.

[0020] Figure 4This is a partial structural diagram of the cleaning mechanism provided in the embodiment of the utility model.

[0021] Figure numbers: 1-winding device, 11-dust box, 12-drum, 13-motor, 2-filter cotton, 3-cleaning mechanism, 31-adsorption box, 32-brush, 33-mesh, 34-adsorption tube, 35-limiting rod, 4-filter mounting plate, 5-pretensioning mechanism, 51-pretensioning rod, 52-pretensioning spring. DETAILED DESCRIPTION

[0022] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0023] In the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] See also Figure 1-Figure 4 The utility model provides an embodiment: a cabin air intake filter device, comprising: two winding devices 1 arranged on both sides of the cabin air inlet, filter cotton 2 and a cleaning mechanism 3, the winding device 1 comprises: a dust box 11, a roller 12 and a motor 13; the roller 12 is rotatably installed on the dust box 11, and the motor 13 can drive the roller 12 to rotate; specifically, the motor 13 is a stepping motor 13; the two ends of the filter cotton 2 are respectively installed on the two rollers 12; the filter cotton 2 is installed on the roller 12 through a canvas, and the canvas and the filter cotton 2 are sewn; the cleaning mechanism 3 can remove the sand and dust on the filter cotton 2.

[0026] During specific implementation, one end of the filter cotton 2 is installed on one of the rollers 12, and the other end of the filter cotton 2 is wound around the other roller 12 and fixed. The first section of the filter cotton 2 is set at the air inlet of the cabin, so that the sand and dust can be filtered; when the filter cotton 2 needs to be replaced, the two motors 13 are activated, and the motor 13 drives the roller 12 to wind the first section of the used filter cotton 2 around the roller 12, and the unused filter cotton 2 on the other roller 12 is moved to the air inlet of the cabin; in this way, the replacement of the filter cotton 2 can be completed; maintenance is more convenient and the maintenance efficiency is improved, which can improve the ability of the unit to quickly restore ventilation and heat dissipation after a sandstorm passes. When the filter cotton 2 is used up, the two motors 13 are controlled to reverse, and the dust on the filter cotton 2 is cleared by the cleaning mechanism 3, so that the filter cotton 2 can be used multiple times, extending the maintenance cycle of the filter cotton 2; when replacing a whole roll of filter cotton, the edge of the filter cotton can be connected to the connecting cloth pre-rolled on the drum 1 (sewn or zipped), and then the drum 1 is dragged by the motor to drag the new filter cotton to the top of the air inlet. The maintenance personnel can complete all the work on the frame, thereby improving the maintainability of the unit.

[0027] Furthermore, a filter mounting plate 4 is provided between the filter cotton 2 and the cabin air inlet. The filter mounting plate 4 is in the shape of a folding fan so as to increase the filtering area. The two ends of the filter mounting plate 4 close to the filter cotton 2 are rotatably installed with guide tubes with a diameter of 10 mm; deep groove ball bearings are installed at both ends of the guide tube to reduce the resistance of the filter cotton 2 passing through the guide tube.

[0028] See also Figure 1-Figure 4 In other embodiments, the cleaning mechanism 3 includes: an adsorption box 31 and a brush 32; the filter cotton 2 passes through the adsorption box 31; the brush 32 is installed on the adsorption box 31 and is located on both sides of the filter cotton 2 to brush away the sand and dust on the filter cotton 2. When the used filter cotton 2 passes through the adsorption box 31, the brush 32 scrapes off the large particles of sand and dust on the filter cotton 2, thereby cleaning the filter cotton 2.

[0029] See also Figure 1-Figure 4 In other embodiments, a mesh 33 is provided on one side of the adsorption box 31 parallel to the filter cotton 2, and an adsorption tube 34 connected to the adsorption box 31 is installed on the other side of the adsorption box 31 parallel to the filter cotton 2. When annual maintenance is required, the maintenance personnel carry a vacuum cleaner, connect the adsorption tube 34 to the vacuum cleaner, turn on the vacuum cleaner to start vacuuming, and suck other remaining particles on the filter cotton 2 in the adsorption box 31 into the vacuum cleaner; the filter cotton 2 is cleaned. Furthermore, a plurality of adsorption tubes 34 are arranged at intervals in the width direction of the filter cotton 2. By providing a plurality of adsorption tubes 34, multiple positions of the filter cotton 2 can be strongly adsorbed, so that the filter cotton 2 can be cleaned more thoroughly.

[0030] See also Figure 1-Figure 4In other embodiments, the adsorption box 31 is provided with limit rods 35 on both sides of the length direction of the filter cotton 2, and the two limit rods 35 are respectively located on both sides of the filter cotton 2 and are in sliding contact with the filter cotton 2. The two limit rods 35 are used to limit and guide the filter cotton 2, so as to prevent the filter cotton 2 from being damaged by friction with the adsorption box 31 when the filter cotton 2 passes through the adsorption box 31.

[0031] See also Figure 1-Figure 4 In another embodiment, a pre-tightening mechanism 5 is further included, and the pre-tightening mechanism 5 includes: a pre-tightening rod 51 and a pre-tightening spring 52; the pre-tightening rod 51 is slidably mounted on the dust box 11, and the pre-tightening rod 51 is in sliding contact with the filter cotton 2, and the pre-tightening spring 52 applies a force toward the filter cotton 2 to the pre-tightening rod 51. In a specific implementation, the pre-tightening spring 52 applies a force toward the filter cotton 2 through the pre-tightening rod 51, so that the contact between the pre-tightening rod 51 and the filter cotton 2 is bent, so as to tighten the filter cotton 2.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A cabin air inlet filter device, characterized in that: include: Two winding devices arranged on both sides of the cabin air inlet include: a dust box, a roller and a motor; the roller is rotatably mounted on the dust box, and the motor can drive the roller to rotate; Filter cotton, the two ends of which are respectively mounted on the two drums; and The cleaning mechanism can clean the sand and dust on the surface of the filter cotton.

2. The cabin air inlet filter device according to claim 1, characterized in that: The cleaning mechanism comprises: an adsorption box and a brush; the filter cotton passes through the adsorption box; the brush is installed on the adsorption box and is located on both sides of the filter cotton to brush away the sand and dust on the filter cotton.

3. The cabin air inlet filter device according to claim 2, characterized in that: A mesh hole is provided on one side of the adsorption box parallel to the filter cotton, and an adsorption tube connected to the adsorption box is installed on the other side of the adsorption box parallel to the filter cotton.

4. The cabin air inlet filter device according to claim 3, characterized in that: A plurality of adsorption tubes are arranged at intervals in the width direction of the filter cotton.

5. The cabin air inlet filter device according to claim 2, characterized in that: Limiting rods are respectively installed on both sides of the adsorption box in the length direction of the filter cotton. The two limiting rods are respectively located on both sides of the filter cotton and are slidably abutted against the filter cotton.

6. The cabin air inlet filter device according to claim 1, characterized in that: It also includes a pre-tightening mechanism, which includes: a pre-tightening rod and a pre-tightening spring; the pre-tightening rod is slidably installed on the dustproof box, and the pre-tightening rod is slidably abutted against the filter cotton, and the pre-tightening spring applies a force toward the filter cotton to the pre-tightening rod.

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