Variable frequency interval cooling and dust removal device

Abstract

A variable frequency cooling and dust removal device includes an air supply duct, a rotating clamping plate, a positioning spindle, an L-shaped mounting plate, a strip-shaped limiting plate, a rectangular cover plate, a rotating mounting frame, a filter frame, and a filter screen. The air supply duct has an upper clearance outlet at its upper part, and an outlet side plate on the side of the upper clearance outlet. The lower part of the side connecting lugs is connected to the outlet side plate, and a set of side connecting lugs are distributed on the outlet side plate. The lower surface of the rectangular cover plate is in contact with the upper clearance outlet, and the side of the rectangular cover plate has a cover plate side sleeve. The two sides of the cover plate side sleeve are in contact with a set of side connecting lugs. The cover plate side sleeve is connected to the set of side connecting lugs through a first rotating shaft. The side of the rectangular cover plate has cover plate side plates, which are symmetrically arranged on the side of the rectangular cover plate. The positioning spindle passes through the rotating clamping plate and is connected to the air supply duct. A set of rotating clamping plates is distributed on the upper part of the air supply duct.

Description

Technical Field

[0001] This utility model relates to the field of variable frequency cooling and dust removal, and in particular to a variable frequency cooling and dust removal device. Background Technology

[0002] The high ambient temperature caused by the heat dissipation of the frequency converters during operation is more pronounced in summer. When the cooling unit in the frequency converter room malfunctions, it can trigger a high-temperature alarm on the frequency converter, seriously affecting its safe and stable operation. This necessitates cooling and dust removal in the frequency converter room. In some cases, it is unavoidable to temporarily install axial flow fans for cooling, which consumes a lot of manpower, material resources, and financial resources. Furthermore, the filter structure of the device is inconvenient to remove for cleaning when using it for cooling and dust removal in the frequency converter room, and needs to be improved. Summary of the Invention

[0003] This invention addresses the aforementioned shortcomings of existing technologies by providing a variable frequency cooling and dust removal device that allows for easy removal and cleaning of the filter screen.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A variable frequency cooling and dust removal device includes an air supply duct, a rotating clamping plate, a positioning spindle, an L-shaped mounting plate, a strip-shaped limiting plate, a rectangular cover plate, a rotating mounting frame, a filter frame, and a filter screen. The air supply duct has an upper clearance outlet at its upper part, and an outlet side plate on the side of the upper clearance outlet. The lower part of the side connecting lugs is connected to the outlet side plate, and a set of side connecting lugs are distributed on the outlet side plate. The lower surface of the rectangular cover plate is in contact with the upper clearance outlet, and the side of the rectangular cover plate has a cover plate side sleeve. The two sides of the cover plate side sleeve are in contact with a set of side connecting lugs. The cover plate side sleeve is connected to the set of side connecting lugs through a first rotating shaft. The side of the rectangular cover plate has cover plate side plates, which are symmetrically arranged on the side of the rectangular cover plate. The positioning spindle passes through the rotating clamping plate and is connected to the air supply duct. A set of rotating clamping plates is distributed on the upper part of the air supply duct.

[0006] The lower surface of the rotating plate is in contact with the side plate of the cover plate, and the side of the rotating plate is in contact with the side plate of the cover plate. The upper part of the L-shaped mounting plate is connected to the air supply duct. The upper part of the rotating mounting frame has a mounting frame upper sleeve. The side of the mounting frame upper sleeve is in contact with the L-shaped mounting plate. The L-shaped mounting plates are symmetrically arranged on both sides of the mounting frame upper sleeve. The mounting frame upper sleeve is connected to a set of L-shaped mounting plates through the second rotating shaft.

[0007] The rotating mounting frame has a mounting frame side plate on its side. The rotating mounting frame is adapted to the air supply duct. The rotating mounting frame is inserted into the air supply duct. The lower part of the strip limiting plate is connected to the air supply duct. The side of the mounting frame side plate is in contact with the strip limiting plate. The rotating mounting frame is adapted to the upper clearance outlet. The rotating mounting frame is inserted into the upper clearance outlet. The upper surface of the rotating mounting frame is in contact with the rectangular cover plate.

[0008] The filter screen is connected inside the filter frame. The filter screen is adapted to the rotating mounting frame. The filter screen is inserted into the rotating mounting frame. The side of the filter screen is attached to the side plate of the mounting frame. A U-shaped handle is connected to the side of the filter screen. A set of U-shaped handles are distributed on the filter screen. Beneficial effects

[0009] 1. This utility model features an L-shaped mounting plate that is fixed inside the air supply duct. A set of L-shaped mounting plates is connected to the mounting frame via a second rotating shaft, allowing the upper part of the rotating mounting frame to be installed inside the air supply duct. The rotating mounting frame can rotate around the second rotating shaft. The structure of the L-shaped mounting plate prevents air leakage from the upper part of the rotating mounting frame during the use of the variable frequency cooling and dust removal device. A strip-shaped limiting plate is installed inside the lower part of the air supply duct, with the side of the mounting frame side plate fitting against the strip-shaped limiting plate. The strip-shaped limiting plate limits the rotating mounting frame, preventing it from tilting and rotating when wind blows through during the variable frequency cooling and dust removal process. The filter screen frame is inserted into the rotating mounting frame, and the side of the filter screen frame is magnetically attached to the side plate of the mounting frame, preventing the filter screen frame from falling out of the rotating mounting frame during the variable frequency cooling and dust removal process. A U-shaped handle facilitates the removal of the filter screen frame from the rotating mounting frame.

[0010] 2. The side sleeve of this utility model is connected to the side connecting ear via a No. 1 rotating shaft, allowing the rectangular cover plate to cover the upper clearance outlet and seal it. This prevents air leakage during frequency converter cooling and dust removal. When it is necessary to clean the dust on the filter screen frame, the fan is turned off. At this time, the rectangular cover plate is opened, and the rotating mounting frame is rotated until it is inserted into the upper clearance outlet. Then, the filter screen frame can be pulled out to clean the dust on the filter screen. The operation is convenient and easy. This device uses natural air to remove dust through a self-cleaning filter, then passes it through a refrigerated dryer to reduce its temperature and remove moisture and oil. After demagnetization and secondary pressurization, the dry air is then sent into the frequency converter room through an air supply pipe by a high-pressure fan. The strong wind blows from bottom to top through the gaps between the frequency converter units, quickly removing the large amount of heat generated by the internal losses of the frequency converter. This reduces the frequency converter temperature and ensures the safe and stable operation of the frequency converter. Attached Figure Description

[0011] Figure 1 This is a top view of a variable frequency cooling and dust removal device according to the present invention.

[0012] Figure 2 This is a bottom view of a variable frequency cooling and dust removal device according to the present invention.

[0013] Figure 3 This is a cross-sectional view of a variable frequency cooling and dust removal device according to the present invention.

[0014] Figure 4 This is a schematic diagram of the air supply duct structure described in this utility model.

[0015] Figure 5 This is a schematic diagram of the rotating mounting frame structure described in this utility model.

[0016] Figure 6 This is a schematic diagram of the filter frame structure described in this utility model. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0018] Example 1:

[0019] A variable frequency cooling and dust removal device includes an air supply duct 01, a rotating clamping plate 03, a positioning spindle 04, an L-shaped mounting plate 07, a strip-shaped limiting plate 08, a rectangular cover plate 09, a rotating mounting frame 13, a filter frame 17, and a filter screen 18. The air supply duct 01 has an upper clearance outlet 02 at its upper part, and an outlet side plate 05 on the side of the upper clearance outlet 02. Side connecting ears 06 are connected to the lower part of the outlet side plate 05, and a set of side connecting ears 06 are distributed on the outlet side plate 05. The lower surface of the rectangular cover plate 09 is in contact with the upper clearance outlet 02, and the rectangular cover plate 09 has a cover side sleeve 11 on its side. The cover side sleeve 11 is connected to the upper clearance outlet 02 on both sides. A set of side connecting ears 06 are fitted together, and the cover plate side sleeve 11 is connected to a set of side connecting ears 06 through a first rotating shaft 12, so that the rectangular cover plate 09 covers the upper clearance outlet 02 and seals the upper clearance outlet 02 to prevent air leakage from here during frequency conversion cooling and dust removal. When it is necessary to deal with the dust on the filter screen frame 17, the fan is turned off. At this time, the rectangular cover plate 09 is opened. The rectangular cover plate 09 has a cover plate side plate 10 on its side. The cover plate side plate 10 is symmetrically arranged on the side of the rectangular cover plate 09. The positioning main shaft 04 passes through the rotating clamp 03 and connects to the air supply duct 01. A set of rotating clamps 03 are distributed on the upper part of the air supply duct 01.

[0020] Example 2:

[0021] The lower surface of the rotating plate 03 of this utility model is in contact with the side plate 10 of the cover plate, and the side of the rotating plate 03 is in contact with the side plate of the cover plate 10. The upper part of the L-shaped mounting plate 07 is connected to the air supply duct 01, and the L-shaped mounting plate 07 is installed and fixed inside the air supply duct 01. The upper part of the rotating mounting frame 13 has a mounting frame upper sleeve 15, and the side of the mounting frame upper sleeve 15 is in contact with the L-shaped mounting plate 07. The L-shaped mounting plates 07 are symmetrically arranged on both sides of the mounting frame upper sleeve 15. The mounting frame upper sleeve 15 is connected to a set of L-shaped mounting plates 07 through the second rotating shaft 16, so that the upper part of the rotating mounting frame 13 is installed inside the air supply duct 01, and the rotating mounting frame 13 can rotate about the second rotating shaft 16. The structure of the L-shaped mounting plate 07 prevents air leakage from the upper part of the rotating mounting frame 13 when the device is in use during frequency conversion cooling and dust removal.

[0022] Example 3:

[0023] The rotating mounting frame 13 of this utility model has a mounting frame side plate 14 on its side. The rotating mounting frame 13 is adapted to the air supply duct 01 and is inserted into the air supply duct 01. The lower part of the strip limiting plate 08 is connected to the air supply duct 01 and is installed inside the lower part of the air supply duct 01. The side of the mounting frame side plate 14 is in contact with the strip limiting plate 08. The strip limiting plate 08 limits the rotating mounting frame 13 and prevents the rotating mounting frame 13 from being blown into a tilt and rotation when the wind passes through during the frequency conversion cooling and dust removal. The rotating mounting frame 13 is adapted to the upper clearance outlet 02 and is inserted into the upper clearance outlet 02. The upper surface of the rotating mounting frame 13 is in contact with the rectangular cover plate 09.

[0024] Example 4:

[0025] The filter frame 17 of this invention is internally connected to a filter screen 18. The filter frame 17 is adapted to the rotating mounting frame 13. The filter frame 17 is inserted into the rotating mounting frame 13, and the side of the filter frame 17 is attached to the side plate 14 of the mounting frame. The filter frame 17 is inserted into the rotating mounting frame 13 and the side of the filter frame 17 is magnetically attached to the side plate 14 of the mounting frame. This prevents the filter frame 17 from falling out of the rotating mounting frame 13 during frequency conversion cooling and dust removal. A U-shaped handle 19 is connected to the side of the filter frame 17, which facilitates the removal of the filter frame 17 from the rotating mounting frame 13. Hands 19 are positioned on the filter frame 17. The rotating mounting frame 13 is rotated until it inserts into the upper clearance outlet 02. At this point, the filter frame 17 can be pulled out to clean the dust on the filter screen 18. The operation is convenient and easy. This device uses natural air, which is then filtered through a self-cleaning filter, cooled by a refrigerated dryer to remove moisture and oil, and then demagnetized and pressurized again. Finally, a high-pressure fan sends the dry air through the air duct into the inverter room. Strong air flows from bottom to top through the gaps between the inverter units, quickly removing the large amount of heat generated by internal losses in the inverter. This reduces the inverter temperature and ensures safe and stable operation.

[0026] Example 5:

[0027] The installation steps of this utility model are as follows: First, connect the strip limiting plate 08 to the air supply duct 01, connect the L-shaped mounting plate 07 to the air supply duct 01, connect the upper sleeve 15 of the mounting frame to a set of L-shaped mounting plates 07 through the second rotating shaft 16, connect the U-shaped handle 19 to the filter screen frame 17, connect the side connecting ear 06 to the outlet side plate 05, connect the cover plate side sleeve 11 to the side connecting ear 06 through the first rotating shaft 12, connect the positioning main shaft 04 through the rotating clamping plate 03 to the air supply duct 01, insert the filter screen frame 17 into the rotating mounting frame 13 so that the side of the filter screen frame 17 fits against the side plate 14 of the mounting frame, rotate the rotating mounting frame 13 so that the side of the side plate 14 of the mounting frame fits against the strip limiting plate 08, rotate the rectangular cover plate 09 to fit against the upper clearance outlet 02, and rotate the rotating clamping plate 03 so that the lower surface and side of the rotating clamping plate 03 fit against the lower surface and side of the cover plate side plate 10.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A variable frequency interval cooling and dust removal device, characterized in that The system includes an air supply duct (01), a rotating clamping plate (03), a positioning spindle (04), an L-shaped mounting plate (07), a strip-shaped limiting plate (08), a rectangular cover plate (09), a rotating mounting frame (13), a filter screen frame (17), and a filter screen (18). The air supply duct (01) has an upper relief outlet (02) at its upper part, and an outlet side plate (05) on the side of the upper relief outlet (02). The lower part of the side connecting lugs (06) is connected to the outlet side plate (05). A set of side connecting lugs (06) are distributed on the outlet side plate (05). The lower surface of the rectangular cover plate (09) is connected to the outlet side plate (05). The upper clearance outlet (02) is fitted together. The rectangular cover plate (09) has a cover plate side sleeve (11) on the side. The cover plate side sleeve (11) is fitted together with a set of side connecting ears (06) on both sides. The cover plate side sleeve (11) is connected to a set of side connecting ears (06) through a first rotating shaft (12). The rectangular cover plate (09) has a cover plate side plate (10) on the side. The cover plate side plate (10) is symmetrically arranged on the side of the rectangular cover plate (09). The positioning main shaft (04) passes through the rotating clamp (03) and connects to the air supply pipe (01). A set of rotating clamps (03) is distributed on the upper part of the air supply pipe (01).

2. The variable frequency cooling and dust removal device according to claim 1, characterized in that: The lower surface of the rotating plate (03) is in contact with the side plate of the cover plate (10), and the side of the rotating plate (03) is in contact with the side plate of the cover plate (10). The upper part of the L-shaped mounting plate (07) is connected to the air supply duct (01). The upper part of the rotating mounting frame (13) has a mounting frame upper sleeve (15). The side of the mounting frame upper sleeve (15) is in contact with the L-shaped mounting plate (07). The L-shaped mounting plates (07) are symmetrically arranged on both sides of the mounting frame upper sleeve (15). The mounting frame upper sleeve (15) is connected to a set of L-shaped mounting plates (07) through the second rotating shaft (16).

3. The variable frequency cooling and dust removal device according to claim 2, characterized in that: The rotating mounting frame (13) has a mounting frame side plate (14) on its side. The rotating mounting frame (13) is adapted to the air supply duct (01). The rotating mounting frame (13) is inserted into the air supply duct (01). The lower part of the strip limiting plate (08) is connected to the air supply duct (01). The side of the mounting frame side plate (14) is in contact with the strip limiting plate (08). The rotating mounting frame (13) is adapted to the upper clearance outlet (02). The rotating mounting frame (13) is inserted into the upper clearance outlet (02). The upper surface of the rotating mounting frame (13) is in contact with the rectangular cover plate (09).

4. The variable frequency cooling and dust removal device according to claim 2, characterized in that: The filter screen (17) is connected to the filter screen (18). The filter screen (17) is adapted to the rotating mounting frame (13). The filter screen (17) is inserted into the rotating mounting frame (13). The side of the filter screen (17) is in contact with the side plate (14) of the mounting frame. The side of the filter screen (17) is connected to the U-shaped handle (19). A set of U-shaped handles (19) are distributed on the filter screen (17).

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