Dustproof ventilating window of power distribution room

Abstract

The utility model discloses a dustproof ventilation window for a power distribution room. The dustproof ventilation window comprises a fixed annular frame, an embedded annular frame and a filtering sheet located between the fixed annular frame and the embedded annular frame. The fixed annular frame is fixed at a ventilation window of the power distribution room, a first ventilation opening for ventilation is formed in the middle of the fixed annular frame, a first annular frame is connected to one side, in the ventilation direction, of the fixed annular frame, and the first annular frame surrounds the peripheral side of the first ventilation opening; the embedded annular frame is embedded in the first annular frame, a second ventilation opening communicated with the first ventilation opening is formed in the middle of the embedded annular frame, and the peripheral edge of the filter is clamped to the matched position of the embedded annular frame and the fixed annular frame. The situation that the ventilation cooling system carries sand and dust to enter the high-voltage frequency converter to cause serious sand and dust residue attachment in the operation process is avoided, rapid positioning can be achieved, and assembling is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of dustproof equipment, in particular to a dustproof ventilation window for a power distribution room. Background Art

[0002] In existing power plants, multiple 10KV high-voltage inverters are often used. During operation, ventilation fans are used to extract air to form airflow for forced ventilation and cooling. Ventilation windows are installed in the distribution room to naturally meet the ventilation circulation requirements. All cooling data parameters comply with regulations and technical standards. Since high-voltage inverters are Class A operating equipment in power plants and require long-term continuous operation, if they are used in the Gobi environment, due to its dry environment and frequent wind and sand, the ventilation and cooling system will carry sand and dust into the high-voltage inverter during operation. Under the action of the electromagnetic field, the dust remains adsorbed on the circuit board. This sand and dust contains a large amount of salt and alkali and rich minerals, which can easily corrode electronic and electrical components, causing short circuits, and then causing various equipment failures, affecting system operation, and posing a major safety hazard to production safety. Utility Model Content

[0003] The purpose of this utility model is to provide a dust-proof ventilation window for a distribution room to solve the problems existing in the above-mentioned prior art, to prevent the ventilation and cooling system from carrying sand and dust into the high-voltage inverter during operation to form serious sand and dust residue adhesion, and to enable quick positioning and easy assembly.

[0004] To achieve the above-mentioned object, the present invention provides the following solution: The present invention provides a dustproof ventilation window for a power distribution room, comprising a fixed annular frame, an embedded annular frame, and a filter located between the fixed annular frame and the embedded annular frame;

[0005] The fixed annular frame is fixed at the ventilation window of the power distribution room, and has a first ventilation opening for ventilation at its middle position. The fixed annular frame is connected to a first annular frame on one side along the ventilation direction, and the first annular frame surrounds the outer periphery of the first ventilation opening;

[0006] The embedded annular frame is embedded in the first annular frame, and has a second vent connected to the first vent at its middle position. The outer peripheral edge of the filter is clamped at the matching position of the embedded annular frame and the fixed annular frame.

[0007] Preferably, a plurality of pressing components for pressing the embedded annular frame are detachably mounted on the first annular frame, and each of the pressing components presses against a side of the embedded annular frame away from the fixed annular frame along the ventilation direction.

[0008] Preferably, the pressing component includes a pressing bracket detachably connected to the first annular frame. A pressing bolt extending along the ventilation direction is threadedly connected to each pressing bracket, and each pressing bolt abuts against the embedded annular frame.

[0009] Preferably, the pressing brackets are evenly distributed on two opposite edges of the first annular frame, and there is an active interval between the pressing brackets and the fixed annular frame for the embedded annular frame to move out of the first annular frame along the ventilation direction.

[0010] Preferably, the pressing bracket has an L-shaped structure, one end of which is connected to the first annular frame, and the other end extends to the side of the embedded annular frame away from the fixed annular frame, and the pre-tightening bolt is threadedly connected thereto.

[0011] Preferably, a second annular frame is provided on the side of the embedded annular frame away from the fixed annular frame. The second annular edge surrounds the outer periphery of the second ventilation opening and is close to the inner peripheral wall of the first annular frame.

[0012] Preferably, a first support frame for supporting the filter element is provided at the first ventilation opening. The first support frame includes a plurality of first support bars distributed at intervals, and both ends of the first support bar are fixed to the fixed annular frame.

[0013] Preferably, a second support frame is provided at the second ventilation opening. The second support frame includes a plurality of second support bars distributed at intervals, and both ends of the second support bar are fixed to the embedded annular frame. The middle part of the filter element is clamped between the first support frame and the second support frame.

[0014] Preferably, the structure of the fixed annular frame is larger than the ventilation window and surrounds the outer periphery of the ventilation window. Fixed earpieces connected to the wall of the power distribution room are provided at equal intervals along the circumferential direction on the outer periphery of the fixed annular frame.

[0015] Preferably, an annular gasket is provided between the fixed annular frame and the wall of the power distribution room.

[0016] The utility model has achieved the following technical effects compared with the prior art:

[0017] During the process of the ventilation fan extracting air to form an air flow, the air passes through the second ventilation port, the filter sheet, and the first ventilation port in sequence, and then cools the high-voltage inverter in the distribution room. Furthermore, the filter sheet intercepts the dust carried in the air, solving the problem in the prior art that during the operation of the ventilation fan, the air flow carries dust into the high-voltage inverter and forms serious dust residue adhesion. It reduces equipment failures and maintenance costs, and improves the reliability and safety of the equipment. It ensures the basic requirement of maintaining the ventilation fan to extract indoor air to form an air flow for forced ventilation cooling, and effectively filters most of the dust outside the ventilation window of the distribution room. Further, in the specific assembly process, by setting the first annular frame on the fixed annular frame, the embedded annular frame can be directly fitted into the first annular frame, and then the subsequent connections are completed. The whole installation process is simple and convenient, and is easy to disassemble to facilitate the subsequent regular replacement of the filter sheet, improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 It is the front view of the overall structure of the present invention;

[0020] Figure 2 It is the side view of the overall structure of the present invention;

[0021] Among them, 1 - fixed annular frame, 2 - embedded annular frame, 3 - pressing bracket, 4 - second support bar, 5 - fixed ear, 6 - first annular frame. SPECIFIC EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0023] The purpose of the present invention is to provide a dust-proof ventilation window for a distribution room to solve the problems existing in the above-mentioned prior art, avoid the situation that the ventilation cooling system carries dust into the high-voltage inverter during operation and forms serious dust residue adhesion, and can be quickly positioned and is convenient for assembly.

[0024] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] As shown in Figures 1 to 2 the figure, this embodiment provides a dust-proof ventilation window for a distribution room, which includes a fixed annular frame 1, an embedded annular frame 2, and a filter sheet located between the fixed annular frame 1 and the embedded annular frame 2. The fixed annular frame 1 and the embedded annular frame 2 are both made of waste angle steel or flat iron, so as to facilitate material collection and save manufacturing costs. The filter sheet is a sheet structure made of 50PPI filter cotton, which has a certain thickness and can effectively filter dust and ensure the ventilation effect. The fixed annular frame 1 is fixed at the ventilation window of the distribution room, and there is a first ventilation port for ventilation at its middle position. One side of the fixed annular frame 1 along the ventilation direction is connected with a first annular frame 6, and the first annular frame 6 surrounds the outer peripheral side of the first ventilation port. The embedded annular frame 2 is embedded in the first annular frame 6, and there is a second ventilation port at its middle position that is connected to the first ventilation port. The outer peripheral edge of the filter sheet is clamped at the mating position of the embedded annular frame 2 and the fixed annular frame 1. Specifically, the filter cotton is cut into a suitable size, placed in the first annular frame 6, and pressed tightly by the embedded annular frame 2. Then, during the process of the ventilation fan extracting air to form an air flow, the air passes through the second ventilation port, the filter sheet, and the first ventilation port in sequence, cools the high-voltage inverter in the distribution room, and then intercepts the dust carried in the air through the filter sheet, solving the problem in the prior art that during the operation of the ventilation fan, the air flow carries dust into the high-voltage inverter to form serious dust residue adhesion. It reduces equipment failures and maintenance costs, and improves the reliability and safety of the equipment. It ensures the basic requirement of maintaining the ventilation fan extracting indoor air to form an air flow for forced ventilation cooling, and effectively filters most of the dust outside the ventilation window of the distribution room. Further, in the specific assembly process, by setting the first annular frame 6 on the fixed annular frame 1, the embedded annular frame 2 can be directly embedded in the first annular frame 6, and then the subsequent connection can be completed. The entire installation process is simple and convenient, and is easy to disassemble, so as to facilitate the subsequent regular replacement of the filter sheet and improve work efficiency.

[0026] As a preferred embodiment of the present utility model, a plurality of pressing components for pressing the embedded annular frame 2 are detachably installed on the first annular frame 6. Each pressing component abuts against the side of the embedded annular frame 2 away from the fixed annular frame 1 along the ventilation direction. That is, the embedded annular frame 2 is pressed by the pressing components, so that the embedded annular frame 2 clamps the filter sheet with the fixed annular frame 1 under the action of the pressing components.

[0027] Among them, the pressing component includes a pressing bracket 3 detachably connected to the first annular frame 6. A pressing bolt extending along the ventilation direction is threadedly connected to each pressing bracket 3. Each pressing bolt abuts against the embedded annular frame 2. By rotating the pressing bolt, it extends towards the embedded annular frame 2 to press the embedded annular frame 2, thereby pressing the filter element, or retracts towards the embedded annular frame 2 to loosen the embedded annular frame 2 so that it no longer presses the filter element, and then completes the replacement of the filter element, etc. Preferably, the pressing brackets 3 are evenly distributed on two opposite edges of the first annular frame 6 and there is an activity interval between them and the fixed annular frame 1 for the embedded annular frame 2 to move out of the first annular frame 6 along the ventilation direction. Then when it is necessary to replace the filter element or disassemble the embedded annular frame 2, only need to loosen the pressing bolt in place, specifically, the pressing bolt is flush with the pressing bracket 3, and then lift the embedded annular frame 2 at the edge of the first annular frame 6 where the pressing bracket 3 is not provided, so that it extends out of the first annular frame 6, and then pull the embedded annular frame 2 as a whole away from the first annular frame 6. The whole disassembly process is more convenient.

[0028] As a preference, the pressing bracket 3 has an L-shaped structure. One end of it is connected to the first annular frame 6, and the other end extends to the side of the embedded annular frame 2 away from the fixed annular frame 1 and is threadedly connected with a pre-tightening bolt. The pressing bracket 3 can be made of L-shaped angle iron, and the included angle between the two ends is close to 90°. Then after fixing one end of the pressing bracket 3 to the first annular frame 6, the other end can extend towards the inside of the first annular frame 6, so that the pre-tightening bolt can be directly opposite to the embedded annular frame 2 and press it. And preferably, the end of the pressing bracket 3 without the pre-tightening bolt is detachably installed on the first annular frame 6, for example, it can be connected by bolts, etc.

[0029] Furthermore, a second annular frame is provided on the side of the embedded annular frame 2 away from the fixed annular frame 1. The second annular edge surrounds the outer periphery of the second ventilation opening and is close to the inner peripheral wall of the first annular frame 6. By providing the second annular frame on the embedded annular frame 2, after folding the outer peripheral edge of the filter element, it can be squeezed between the first annular frame 6 and the second annular frame, so as to fully prevent dust from entering the inside of the ventilation window from the outer peripheral edge of the filter element.

[0030] To ensure effective support for the filter element and prevent the filter element from deforming under the guidance of the air flow, a first support frame for supporting the filter element is provided at the first ventilation opening. The first support frame includes a plurality of first support bars distributed at intervals, and both ends of the first support bars are fixed on the fixed annular frame 1. Preferably, the first support bars are divided into a plurality of longitudinally extending support bars arranged in parallel and at intervals, and a plurality of laterally extending support bars arranged in parallel and at intervals, and the longitudinally extending support bars and the laterally extending support bars intersect and distribute. Further, a second support frame is provided at the second ventilation opening. The second support frame includes a plurality of second support bars 4 distributed at intervals, and both ends of the second support bars 4 are fixed on the embedded annular frame 2. Preferably, the second support bars 4 are divided into a plurality of longitudinally extending support bars arranged in parallel and at intervals, and a plurality of laterally extending support bars arranged in parallel and at intervals, and the longitudinally extending support bars and the laterally extending support bars intersect and distribute. The middle part of the filter element is clamped between the first support frame and the second support frame to ensure that the filter element is fully unfolded and prevent it from deforming under the guidance of the air flow.

[0031] Among them, the structure of the fixed annular frame 1 is larger than the ventilation window and surrounds the outer peripheral side of the ventilation window to ensure that its size is larger than the ventilation window. And the outer peripheral side of the fixed annular frame 1 is provided with fixed earpieces 5 connected to the wall of the power distribution room at equal intervals in the circumferential direction. The fixed annular frame 1 is installed on the wall of the power distribution room through the fixed earpieces 5. Preferably, the fixed earpieces 5 are provided with connection holes, and expansion bolts are passed through the connection holes and fixed on the wall of the power distribution room to ensure that the fixed annular frame 1 will not loosen. Preferably, an annular gasket is provided between the fixed annular frame 1 and the wall of the power distribution room to fully prevent sand and dust from entering the ventilation window from the outer peripheral side of the fixed annular frame 1.

[0032] Adaptations made according to actual needs are within the protection scope of the present utility model.

[0033] It should be noted that for those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0034] In this utility model, specific examples are used to expound the principle and implementation manner of the utility model. The description of the above embodiments is only used to help understand the method and its core idea of the utility model; at the same time, for those of ordinary skill in the art, according to the idea of the utility model, there will be changes in the specific implementation manner and application scope. To sum up, the content of this specification should not be construed as a limitation to the utility model.

Claims

1. A dustproof ventilation window for a power distribution room, characterized in that: It includes a fixed annular frame, an embedded annular frame and a filter located between the fixed annular frame and the embedded annular frame; The fixed annular frame is fixed at the ventilation window of the power distribution room, and has a first ventilation opening for ventilation at its middle position. The fixed annular frame is connected to a first annular frame on one side along the ventilation direction, and the first annular frame surrounds the outer periphery of the first ventilation opening; The embedded annular frame is embedded in the first annular frame, and has a second vent connected to the first vent at its middle position. The outer peripheral edge of the filter is clamped at the matching position of the embedded annular frame and the fixed annular frame.

2. The dustproof ventilation window for the power distribution room according to claim 1, characterized in that: A plurality of pressing components for pressing the embedded annular frame are detachably mounted on the first annular frame, and each of the pressing components presses against a side of the embedded annular frame away from the fixed annular frame along the ventilation direction.

3. The dustproof ventilation window for the power distribution room according to claim 2, characterized in that: The clamping assembly includes a clamping bracket detachably connected to the first annular frame, each of the clamping brackets is threadedly connected to a clamping bolt extending along the ventilation direction, and each of the clamping bolts abuts against the embedded annular frame.

4. The dustproof ventilation window for the power distribution room according to claim 3, characterized in that: Each of the pressing brackets is evenly distributed on two opposite edges of the first annular frame, and has a movable gap between the fixing annular frame and the embedded annular frame for moving out of the first annular frame along the ventilation direction.

5. The dustproof ventilation window for the power distribution room according to claim 4, characterized in that: The clamping bracket is in an L-shaped structure, one end of which is connected to the first annular frame, and the other end extends to a side of the embedded annular frame away from the fixed annular frame and is threadedly connected to the clamping bolt.

6. The dustproof ventilation window for a power distribution room according to any one of claims 2 to 5, characterized in that: A second annular frame is provided on a side of the embedded annular frame away from the fixed annular frame. The second annular frame surrounds the outer peripheral side of the second vent and is close to the inner peripheral wall of the first annular frame.

7. The dustproof ventilation window for the power distribution room according to claim 6, characterized in that: A first support frame for supporting the filter is provided at the first vent. The first support frame includes a plurality of first support bars distributed at intervals, and both ends of the first support bars are fixed to the fixed annular frame.

8. The dustproof ventilation window for the power distribution room according to claim 7, characterized in that: A second support frame is provided at the second vent, and the second support frame includes a plurality of second support bars distributed at intervals, and both ends of the second support bars are fixed on the embedded annular frame, and the middle part of the filter plate is clamped between the first support frame and the second support frame.

9. The dustproof ventilation window for the power distribution room according to claim 8, characterized in that: The structure of the fixed annular frame is larger than the ventilation window and surrounds the outer periphery of the ventilation window. The outer periphery of the fixed annular frame is provided with fixed ears connected to the wall of the distribution room at equal intervals along the circumference.

10. The dustproof ventilation window for the power distribution room according to claim 9, characterized in that: An annular sealing gasket is provided between the fixed annular frame and the wall of the distribution room.

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