Dust collecting device

Abstract

The utility model relates to the technical field of direct current system rectification module cleaning, in particular to a dust collecting device which comprises a flexible sleeve, a communicating pipe, a collecting box, a filtering piece and a non-return mechanism, and the flexible sleeve is used for being arranged on an air outlet of a rectification module case in a sleeving mode; one end of the communicating pipe is communicated with the inner cavity of the flexible sleeve; the collecting box is provided with an air inlet and an air outlet; the air inlet is connected with the other end of the communicating pipe; the filtering part is arranged in the collecting box and is arranged between the air inlet and the air outlet, so that an inner cavity of the collecting box is divided into a foul air cavity and a clear air cavity; the non-return mechanism is arranged in the foul air cavity and / or an inner cavity of the communicating pipe and used for preventing airflow in the foul air cavity and the communicating pipe from flowing back into the flexible sleeve. According to the utility model, the problem that dust is easy to diffuse to a power distribution room when the rectification module is blown and cleaned in the prior art is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning a rectifier module of a direct current system, in particular to a dust collecting device. Background Art

[0002] At present, multiple rectifier modules are often installed in the DC system distribution room of the power plant to run simultaneously. These modules are equipped with ventilation structures that run through the front and back of the main chassis. During shutdown inspections and daily maintenance, maintenance personnel use a hair dryer to blow from the front to the back of the module ventilation structure without opening the box, so that all the dust inside the module is discharged from the vent at the rear of the module to achieve the purpose of cleaning the internal environment of the chassis. Because the space of the DC system rectifier module is limited, vacuum cleaners, brushes and other tools cannot fully enter, and the purpose of cleaning dust in all directions cannot be achieved. Using a hair dryer can clean the dust inside the module in all directions.

[0003] However, this operation method will cause dust to fill the DC system distribution room, which will in turn affect other electrical equipment and the health of workers. Utility Model Content

[0004] In view of the above problems, the present application provides a dust collection device, which solves the problem in the prior art that dust is easily diffused into the power distribution room when the rectifier module is cleaned by air blowing.

[0005] To achieve the purpose of this application, this application provides the following technical solutions:

[0006] A dust collecting device, comprising:

[0007] A flexible sleeve, used for sleeve-mounting on the air outlet of the rectifier module chassis;

[0008] A connecting tube, one end of which is connected to the inner cavity of the flexible sleeve;

[0009] A collecting box having an air inlet and an air outlet, wherein the air inlet is connected to the other end of the connecting pipe;

[0010] A filter element is disposed in the collection box and arranged between the air inlet and the air outlet so as to separate the inner cavity of the collection box into a turbid air cavity and a clean air cavity;

[0011] The anti-return mechanism is arranged in the inner cavity of the turbid gas cavity and / or the connecting tube, and is used to prevent the airflow in the turbid gas cavity and the connecting tube from flowing back into the flexible sleeve.

[0012] According to the dust collecting device provided by the utility model, an elastic member is arranged at the inlet end of the flexible sleeve.

[0013] According to the dust collecting device provided by the utility model, the connecting pipe is a flexible telescopic pipe.

[0014] According to the dust collecting device provided by the utility model, the filter element comprises:

[0015] A first filter screen plate is arranged along the cross section of the collection box and connected to the inner cavity wall of the collection box;

[0016] A second filter screen plate is arranged along the cross section of the collection box and connected to the inner cavity wall of the collection box;

[0017] Wherein, the first filter is close to the air inlet, and the second filter is close to the air outlet; and the mesh number of the first filter plate is smaller than the mesh number of the first filter plate.

[0018] According to the dust collection device provided by the utility model, the anti-return mechanism includes:

[0019] A support, connected to the connecting pipe and / or the inner wall of the turbid gas cavity;

[0020] There are at least two opening and closing plates, which are respectively hinged on the support and can block the passage formed by the connecting pipe and / or the turbid gas cavity when the opening and closing plates are closed;

[0021] An elastic member, one end of which is connected to the support, and the other end of which is connected to the opening and closing plate, is used to provide a closing force for the opening and closing plate.

[0022] According to the dust collecting device provided by the utility model, the anti-return mechanism is arranged at the interface between the connecting pipe and the flexible sleeve.

[0023] According to the dust collecting device provided by the utility model, the opening and closing plates are fan-shaped, and a plurality of the opening and closing plates can form a circle in a closed state;

[0024] The elastic member comprises: an arc-shaped telescopic rod and a compression spring, one end of the arc-shaped telescopic rod is connected to the support, and the other end of the arc-shaped telescopic rod is connected to the opening and closing plate; and the compression spring is sleeved on the arc-shaped telescopic rod.

[0025] According to the dust collection device provided by the utility model, the collection box is also provided with a filter plate outlet for disassembling the filter plate;

[0026] It also includes a box door, which is detachably arranged on the filter plate outlet and is used to close the filter plate outlet.

[0027] The dust collecting device provided by the utility model also includes:

[0028] Universal wheels, mounted on the bottom end of the collection box;

[0029] A push handle is installed on the collection box.

[0030] The utility model provides a dust collecting device, which can realize sleeve-type connection with air outlets of rectifier modules of different sizes and shapes through the setting of a flexible sleeve, and further can receive dust from a rectifier module chassis; through the setting of a connecting pipe, it can realize guiding the dust in the flexible sleeve into a collecting box; through the setting of the collecting box, it can store dust; through the setting of a filter element, it can realize purification of turbid gas from the rectifier module, so as to discharge clean air into a power distribution room; through the setting of a non-return mechanism, it can prevent the airflow in the turbid gas cavity and the connecting pipe from flowing back into the flexible sleeve, and further flowing back into the rectifier module.

[0031] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation to the present application.

[0033] Figure 1 A schematic diagram of the three-dimensional structure of a dust collection device provided in an embodiment of the present application;

[0034] Figure 2 A schematic diagram of the disassembly structure of the collection box provided in an embodiment of the present application;

[0035] Figure 3 A schematic diagram of the three-dimensional structure of the anti-return mechanism provided in an embodiment of the present application;

[0036] Figure 4 A schematic diagram of the planar structure of the anti-return mechanism provided in an embodiment of the present application;

[0037] Figure 5 A schematic diagram of the filter arrangement position provided in the embodiment of the present application;

[0038] Figure 6 This is a schematic diagram of the planar structure of the dust collection device provided in an embodiment of the present application.

[0039] Reference numerals:

[0040] 1. Flexible sleeve;

[0041] 2. Connecting pipe;

[0042] 3. Collection box; 301. Air inlet; 302. Air outlet; 303. Turbid air cavity; 304. Clean air cavity;

[0043] 4. Filter element; 401. First filter screen plate; 402. Second filter screen plate;

[0044] 5. Anti-return mechanism; 501. Support; 502. Opening and closing plate; 503. Elastic member; 5031. Compression spring; 5032. Arc-shaped telescopic rod;

[0045] 6. Universal wheel;

[0046] 7. Push the handle. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0048] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of this application, unless otherwise specified, "plurality" means two or more.

[0049] Combine the following Figure 1 The embodiment shown in Figure 6 describes the technical solution of the utility model: wherein, as Figures 1 to 5 As shown:

[0050] An embodiment of the utility model provides a dust collection device, comprising: a flexible sleeve 1, a connecting pipe 2, a collection box 3, a filter 4 and a backflow prevention mechanism 5, wherein the flexible sleeve 1 is used to be sleeved on the air outlet 302 of the rectifier module chassis; one end of the connecting pipe 2 is connected to the inner cavity of the flexible sleeve 1; the collection box 3 has an air inlet 301 and an air outlet 302, and the air inlet 301 is connected to the other end of the connecting pipe 2; the filter 4 is arranged in the collection box 3, and is arranged between the air inlet 301 and the air outlet 302, so as to separate the inner cavity of the collection box 3 into a turbid air cavity 303 and a clean air cavity 304; the backflow prevention mechanism 5 is arranged in the turbid air cavity 303 and / or the inner cavity of the connecting pipe 2, and is used to prevent the airflow in the turbid air cavity 303 and the connecting pipe 2 from flowing back into the flexible sleeve 1.

[0051] In some embodiments, the flexible sleeve 1 can be made of polyester and / or rubber material. This material has good flexibility and can be adapted to rectifier module chassis of various specifications and sizes. After being put on, the flexible sleeve 1 can be tightly tied to the chassis with a rolling belt; the connecting pipe 2 can be made of a rubber tube or a bellows. Pipes made of this material can adapt to rectifier module chassis placed in different positions, especially the bellows, and its length can also be changed. Due to the limited space in the distribution room, it is not appropriate to adjust the placement position of the collection box 3; the filter element 4 can be a filter net, a filter layer, a filter plate or multiple filter rods arranged side by side, as long as the inner cavity of the collection box 3 is divided into a turbid air cavity 303 and a clean air cavity 304.

[0052] The air outlets are a plurality of matrix-type air outlets opened on the bottom plate of the collection box.

[0053] The utility model provides a dust collecting device, which can realize sleeve-type connection with rectifier module air outlets 302 of different sizes and shapes through the setting of a flexible sleeve 1, and thus can receive dust from the rectifier module chassis; through the setting of a connecting pipe 2, it can realize guiding the dust in the flexible sleeve 1 into the collecting box 3; through the setting of the collecting box 3, it can store dust; through the setting of a filter element 4, it can realize purification of turbid gas from the rectifier module, so as to discharge clean air into the distribution room; through the setting of a non-return mechanism 5, it can prevent the airflow in the turbid gas cavity 303 and the connecting pipe 2 from flowing back into the flexible sleeve 1, and then flowing back into the rectifier module.

[0054] According to the dust collecting device provided by the embodiment of the utility model, an elastic member is provided at the inlet end of the flexible sleeve 1 .

[0055] In some embodiments, the elastic member is disposed at the edge of the inlet of the flexible sleeve 1 (not shown in the figure), and the elastic member may preferably be an elastic band, which has strong elasticity and can firmly clamp the flexible sleeve 1 and the chassis.

[0056] According to the dust collecting device provided by the embodiment of the utility model, Figure 6 As shown, the connecting pipe 2 is a flexible telescopic pipe.

[0057] In some embodiments, the flexible expansion tube is preferably a rubber bellows, which can make corresponding changes in length and curvature according to the different positions of the rectifier module, avoiding the adjustment of the position of the collection box 3, and is more adaptable in a complex distribution room environment.

[0058] According to the dust collecting device provided by the embodiment of the utility model, Figure 2 and Figure 5As shown, the filter element 4 includes: a first filter screen plate 401 and a second filter screen plate 402, the first filter screen plate 401 is arranged along the cross section of the collection box 3 and connected to the inner cavity wall of the collection box 3; the second filter screen plate 402 is arranged along the cross section of the collection box 3 and connected to the inner cavity wall of the collection box 3;

[0059] The first filter is close to the air inlet 301 , and the second filter is close to the air outlet 302 ; and the mesh number of the first filter plate 401 is smaller than the mesh number of the second filter plate 401 .

[0060] In some embodiments, the first filter screen 401 is composed of a dust screen and a rectangular outer frame. The outer frame has wing plates on opposite sides for sliding connection with the inner wall of the collection box 3. The dust screen is set in the outer frame. The dust screen is made of PVC or PC and has a mesh size of 20 meshes / 1cm.

[0061] Similarly, the second filter screen plate 402 is composed of a dust screen and a rectangular outer frame, the outer frame has wing plates on two opposite sides and is arranged below the first filter screen plate 401. The dust screen is made of PVC or PC and has a mesh size of 30 meshes / 1cm.

[0062] Therefore, through the setting of the wing plate, the sliding of the filter plate and the inner wall of the collection box 3 can be achieved, which is convenient for replacing the filter and cleaning the dust; by setting the mesh number of the second filter plate 402 to be larger than the mesh number of the first filter plate 401, it is possible to intercept large particles of dust first, and then use the second filter plate 402 to intercept fine particles, so that the exhausted gas is cleaner and the cleaning cycle of the filter plate is prolonged.

[0063] According to the dust collecting device provided by the embodiment of the utility model, Figure 3 and Figure 4 As shown, the anti-return mechanism 5 includes: a support 501, an opening and closing plate 502 and an elastic member 503, wherein the support 501 is connected to the inner wall of the connecting pipe 2 and / or the turbid gas cavity 303; the opening and closing plates 502 have at least two, and are respectively hinged on the support 501, and can block the channel formed by the connecting pipe 2 and / or the turbid gas cavity 303 when the opening and closing plates 502 are all closed; one end of the elastic member 503 is connected to the support 501, and the other end is connected to the opening and closing plate 502, which is used to provide a closing force to the opening and closing plate 502.

[0064] In some embodiments, the support 501 is cylindrical and can be fixed on the inner wall of the connecting pipe 2, or it can be a square bracket fixed on the inner wall of the collecting box 3; the opening and closing plates 502 have multiple settings, and they are all fan-shaped, but after they are closed, they form a complete circle to block the inner channel of the connecting pipe 2, and they are all hinged on the support 501. Figure 3In the figure, the opening and closing plate 502 is semicircular and closes naturally under the action of the elastic member 503. Of course, the closing limit comes from the extension limit of the elastic member 503; the elastic member 503 can be an elastic telescopic rod, a metal spring or an elastic mechanism, etc.

[0065] According to the dust collecting device provided by the embodiment of the utility model, the anti-return mechanism 5 is arranged at the interface between the connecting pipe 2 and the flexible sleeve 1.

[0066] Therefore, the installation of the anti-return mechanism 5 can be facilitated, and since the diameter of the connecting pipe 2 is much smaller than the width of the collecting box 3, it can exert a better anti-return effect.

[0067] According to the dust collecting device provided by the embodiment of the utility model, Figure 3 and Figure 4 As shown, the opening and closing plates 502 are fan-shaped, and a plurality of the opening and closing plates 502 can form a circle in a closed state;

[0068] The elastic member 503 includes: an arc-shaped telescopic rod 5032 and a compression spring 5031 . One end of the arc-shaped telescopic rod 5032 is connected to the support 501 , and the other end of the arc-shaped telescopic rod 5032 is connected to the opening and closing plate 502 . The compression spring 5031 is sleeved on the arc-shaped telescopic rod 5032 .

[0069] In this way, the natural closure of the two semicircular opening and closing plates 502 can be achieved. When air is blown into the connecting pipe 2 by the flexible sleeve 1, it can be opened under the action of wind. Therefore, the elastic force of the compression spring 5031 should be controlled below the wind force, and the specific force is flexibly selected according to the actual construction; when there is no wind blowing, it closes naturally.

[0070] According to the dust collecting device provided by the embodiment of the utility model, Figure 2 As shown, the collecting box 3 is also provided with a filter plate outlet for disassembling the filter plate; and also includes a box door, which is detachably arranged on the filter plate outlet and is used to close the filter plate outlet.

[0071] Thus, the filter screen can be cleaned or replaced regularly.

[0072] According to the dust collecting device provided by the embodiment of the utility model, Figure 1 As shown, it also includes: a universal wheel 6 and a push handle 7, the universal wheel 6 is installed on the bottom end of the collection box 3; the push handle 7 is installed on the collection box 3.

[0073] In this way, the entire device can be flexibly moved and positioned.

[0074] Figure 6 This is a dimension diagram of a dust collection device provided by an embodiment of the utility model. Specifically,

[0075] In the natural state, the diameter of the opening of the flexible sleeve is 60.96mm, the diameter of the middle section is 500mm, the diameter of the air inlet of the collection box is 100mm, the collection box is 700mm long, the width and height are both 400mm, the length of the push handle is 800mm, and the diameter of the universal wheel is 100mm.

[0076] The beneficial effects of the embodiments of the present application are as follows: through the provision of a flexible sleeve, the present application can achieve a sleeve-type connection with the air outlet of a rectifier module of different sizes and shapes, and thus can receive dust from the rectifier module chassis; through the provision of a connecting pipe, the dust in the flexible sleeve can be guided into a collection box; through the provision of a collection box, dust can be stored; through the provision of a filter element, the turbid gas from the rectifier module can be purified so that clean air can be discharged into the distribution room; through the provision of a non-return mechanism, the airflow in the turbid gas cavity and the connecting pipe can be prevented from flowing back into the flexible sleeve, and then flowing back into the rectifier module.

[0077] In the several embodiments provided in the present application, it should be understood that the disclosed systems, modules and methods can be implemented in other ways. For example, the module embodiments described above are only schematic, for example, the division of units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, modules or units, which can be electrical, mechanical or other forms.

[0078] The above embodiments are only used to illustrate the technical solution of the present application, but not to limit it. The present application is not limited to the exact structure described above and illustrated in the accompanying drawings, and it cannot be determined that the specific implementation of the present application is limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, various changes and modifications made without departing from the concept of the present application should be deemed to belong to the protection scope of the present application.

Claims

1. A dust collecting device, characterized in that: include: A flexible sleeve, used for sleeve-mounting on the air outlet of the rectifier module chassis; A connecting tube, one end of which is connected to the inner cavity of the flexible sleeve; A collecting box having an air inlet and an air outlet, wherein the air inlet is connected to the other end of the connecting pipe; A filter element is disposed in the collection box and arranged between the air inlet and the air outlet so as to separate the inner cavity of the collection box into a turbid air cavity and a clean air cavity; The anti-return mechanism is arranged in the inner cavity of the turbid gas cavity and / or the connecting tube, and is used to prevent the airflow in the turbid gas cavity and the connecting tube from flowing back into the flexible sleeve.

2. The dust collecting device according to claim 1, characterized in that: The inlet end of the flexible sleeve is provided with an elastic member.

3. The dust collecting device according to claim 1, characterized in that: The connecting pipe is a flexible telescopic pipe.

4. The dust collecting device according to claim 1, characterized in that: The filter element comprises: A first filter screen plate is arranged along the cross section of the collection box and connected to the inner cavity wall of the collection box; A second filter screen plate is arranged along the cross section of the collection box and connected to the inner cavity wall of the collection box; Wherein, the first filter is close to the air inlet, and the second filter is close to the air outlet; and the mesh number of the first filter plate is smaller than the mesh number of the first filter plate.

5. The dust collecting device according to claim 1, characterized in that: The anti-return mechanism comprises: A support, connected to the connecting pipe and / or the inner wall of the turbid gas cavity; There are at least two opening and closing plates, which are respectively hinged on the support and can block the passage formed by the connecting pipe and / or the turbid gas cavity when the opening and closing plates are closed; An elastic member, one end of which is connected to the support, and the other end of which is connected to the opening and closing plate, is used to provide a closing force for the opening and closing plate.

6. The dust collecting device according to claim 5, characterized in that: The anti-return mechanism is arranged at the interface between the connecting pipe and the flexible sleeve.

7. The dust collecting device according to claim 6, characterized in that: The opening and closing plates are fan-shaped, and a plurality of the opening and closing plates can form a circle in a closed state; The elastic member comprises: an arc-shaped telescopic rod and a compression spring, one end of the arc-shaped telescopic rod is connected to the support, and the other end of the arc-shaped telescopic rod is connected to the opening and closing plate; and the compression spring is sleeved on the arc-shaped telescopic rod.

8. The dust collecting device according to claim 1, characterized in that: The collection box is also provided with a filter plate outlet for disassembling the filter plate; It also includes a box door, which is detachably arranged on the filter plate outlet and is used to close the filter plate outlet.

9. The dust collecting device according to any one of claims 1 to 8, characterized in that: Also includes: Universal wheels, mounted on the bottom end of the collection box; A push handle is installed on the collection box.

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