Composite crystal grain fusible sound insulation board with pressure relief function

Abstract

According to the technical scheme, the composite crystal grain fusible sound insulation board with the pressure relief function comprises a sound insulation board body. An overturning pressure relief device is arranged on the upper surface of the sound insulation board body; the upper surface of the sound insulation board body is provided with a composite crystal grain board which can automatically fall off when reaching a specific temperature. The overturning pressure relief device can be overturned and opened after being impacted by specific upward air pressure; under the condition that the composite crystal grain plate does not fall off and the turnover pressure relief device is not opened, the sound insulation plate body enables the converter equipment located below the sound insulation plate body to be in a closed state. The pressure relief device is accurate in action pressure, the high-temperature fusing device and the pressure relief device are combined together, modular installation is facilitated, and damage resistance in the production and carrying process is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of sound insulation covers for power transmission and transformation equipment in the electric power industry, and in particular relates to a composite crystal grain fusible sound insulation board with a pressure relief function. Background Art

[0002] The converter station is the most important node of the DC transmission line, and the converter transformer is one of the most important equipment in the DC converter station. The converter transformer is also the main noise source in the converter station. Noise control adopts the soundproof cover technology. The closed soundproof cover structure has good sound absorption and insulation effects, but there are potential safety hazards. For example, when a sudden fire or even explosion occurs in the converter transformer compartment, the closed soundproof cover structure will become an obstacle to the accident handling, especially the obstruction of the top plate, which is not conducive to the smooth implementation of emergency actions. If the top plate cannot be opened as soon as possible and the handling action cannot be carried out in time, the accident may spread rapidly and may even affect the adjacent converter transformer or valve hall, causing greater losses.

[0003] At present, the sound insulation and noise reduction devices of converter transformers are required to have fusible and pressure relief functions. The fusible sound insulation board is made of composite grain material and steel frame structure, which can melt and fall off at a specific temperature.

[0004] A flip plate serving as a pressure relief device is arranged in an important area on the top of the soundproof enclosure. However, the operating pressure of the pressure relief device does not have a constant value function and cannot reliably protect key components from impact damage.

[0005] The composite particle board of the existing sound insulation board is generally connected to the steel frame by screws or raised edges. The exposed screws are prone to rust, and the raised edges are prone to water and dust accumulation. In addition, it is inevitable that the edges and corners of the particle board will be damaged during production, transportation and installation.

[0006] At the same time, the existing pressure relief device and fusible device are two separate structures, and the construction process is cumbersome. Utility Model Content

[0007] The purpose of the utility model is to solve the shortcomings of the above-mentioned background technology and provide a composite grain fusible sound insulation board with a pressure relief function. The pressure relief device has accurate action pressure, combines the high-temperature fuse device and the pressure relief device together, is easy to install in a modular manner, and has strong damage resistance during production, transportation and installation.

[0008] The technical scheme adopted by the utility model is: a composite crystal grain fusible sound insulation board with a pressure relief function, comprising a sound insulation board body; a reversing pressure relief device is arranged on the upper surface of the sound insulation board body; a composite crystal grain plate which automatically falls off when a specific temperature is reached is arranged on the upper surface of the sound insulation board body; the reversing pressure relief device will be reversed and opened after being impacted by a specific upward air pressure; when the composite crystal grain plate has not fallen off and the reversing pressure relief device has not been opened, the surface of the sound insulation board body is in a non-porous state.

[0009] In the above technical solution, the sound insulation board body includes two symmetrically arranged metal frames; the composite grain board is clamped between the two metal frames; and the overturning pressure relief device is arranged between the two metal frames.

[0010] In the above technical solution, downwardly extending sealing plates are arranged between the two metal frame bodies and the two opposite ends of the two metal frames, and the sealing plates are connected end to end to form a frame structure.

[0011] In the above technical solution, a supporting keel is arranged between the two metal frames; each composite grain plate is supported on the upper surface of the supporting keel.

[0012] In the above technical solution, the flip pressure relief device includes a mounting platform, a flip frame, a flip frame and a flip plate; the mounting platform is arranged between two metal frames, the flip frame is fixed on the mounting platform, and the flip frame and the flip frame are coaxially arranged; the same side of the flip frame and the flip frame are hinged to each other, and the other side opposite to the hinge is fixed by a plastic bolt connector; the flip plate is clamped in the flip frame; the flip plate adopts a composite grain plate.

[0013] In the above technical solution, the metal frame is a C-shaped notch structure; the edge of the composite grain board is provided with a first notch matching with the metal frame, the metal frame is arranged in the first notch, and the upper surface of the metal frame is flush with the upper surface of the composite grain board.

[0014] In the above technical solution, a second notch is provided on the bottom plate of the metal frame, the end of the supporting keel is welded to the second notch, and the top surface of the supporting keel is flush with the bottom surface of the metal frame.

[0015] In the above technical solution, the section of the sealing plate extending along the metal frame is a C-shaped structure, covering the outside of the metal frame. The sealing plate located between the two metal frames covers the section of the metal frame; and the section of the sealing plate extending along the metal frame.

[0016] In the above technical solution, a rubber strip is arranged between the composite crystal plate and the metal frame.

[0017] In the above technical solution, colloid is filled between the flip plate and the flip frame.

[0018] The beneficial effects of the utility model are as follows: the composite crystal grain fusible sound insulation board with pressure relief function of the utility model has the function of melting and falling off at a specific temperature, and its own flip pressure relief device can release pressure at a fixed pressure value, which can reliably protect key components from impact damage. At the same time, the top surface of the sound insulation board is flat and beautiful, and there will be no local accumulation of water and dust. The rubber strip can effectively protect the composite crystal grain single board from damage during production, transportation and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a partial perspective view of the utility model;

[0021] Figure 3 It is a left view of the utility model;

[0022] Figure 4 It is a partial view of the utility model.

[0023] Among them, 1-metal frame, 2-sealing plate, 3-composite grain board, 4-flip frame, 5-flip frame, 6-hinge axis, 7-flip plate, 8-plastic bolt connector, 9-support keel, 10-rubber strip, 11-installation platform, 12-first notch, 13-second notch. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments to facilitate a clear understanding of the present invention, but they do not constitute a limitation on the present invention.

[0025] like Figure 1 As shown, the utility model provides a composite crystal grain fusible sound insulation board with a pressure relief function, comprising a sound insulation board body; a flip pressure relief device is arranged on the upper surface of the sound insulation board body; a composite crystal grain plate 3 which automatically falls off when a specific temperature is reached is arranged on the upper surface of the sound insulation board body; the flip pressure relief device will flip open after being impacted by a specific upward air pressure.

[0026] When a fire occurs, the composite crystal plate 3 falls off after reaching the melting temperature. When an explosion occurs, the flip device flips upward and opens due to the impact of gas pressure.

[0027] A plurality of composite grain fusible sound insulation panels with pressure relief function are spliced ​​together to form a sound insulation cover. When the composite grain panel 3 is not detached and the overturning pressure relief device is not opened, the surface of the sound insulation panel body is in a non-porous state, and the sound insulation cover makes the inverter equipment located thereunder in a closed state.

[0028] Specifically, the sound insulation board body comprises two symmetrically arranged metal frames 1 ; the composite crystal plate 3 is clamped between the two metal frames 1 ; and the overturning pressure relief device is arranged between the two metal frames 1 .

[0029] The composite grain veneer is a solid plate with a convex cross-section formed by solidification, and the maximum thickness is t=20mm.

[0030] Preferably, the metal frame 1 is a C-shaped notch structure; the edge of the composite grain board 3 is provided with a first notch 12 that matches the metal frame 1, the metal frame 1 is provided at the first notch 12, and the upper surface of the metal frame 1 is flush with the upper surface of the composite grain board 3. A rubber strip 10 is provided between the composite grain board 3 and the metal frame 1. The composite grain board 3 is a solid plate with a convex cross-section formed by curing, and the thin-edge fixing rubber strips 10 with the first notches 12 on both sides are inserted into the C-shaped notch of the steel metal frame 1. The spacing between the first notches 12 is not greater than 500mm.

[0031] Specifically, a support keel 9 is provided between the two metal frames 1; each composite grain board 3 is supported on the upper surface of the support keel 9. A discontinuously arranged second notch 13 is provided on the bottom plate of the metal frame 1, and the end of the support keel 9 is welded to the second notch 13, and the top surface of the support keel 9 is flush with the bottom surface of the metal frame 1. The support keel 9 is an inverted U-shaped cross-section, and its top surface is flush with the bottom plate under the C-shaped notch of the metal frame 1, ensuring the rapid insertion and effective support of the composite grain board 3.

[0032] The four sides of the composite grain board 3 are supported by the metal frame 1, the supporting keel 9 and the sealing plate 2 to enhance the bearing capacity of the composite grain fusible sound insulation board. The elastic rubber strip 10 constitutes a buffer and limit between the metal frame 1 and the composite grain board 3. The composite grain board 3 is flush with the top surface of the metal frame 1 to avoid water accumulation due to the unevenness of the top.

[0033] Specifically, the flip pressure relief device includes a mounting platform 11, a flip frame 4, a flip frame 5 and a flip plate 7; the mounting platform 11 is arranged between two metal frames 1, the flip frame 4 is fixed on the mounting platform 11, and the flip frame 4 and the flip frame 5 are coaxially arranged; the flip frame 4 and the flip frame 5 are hinged on the same side, and the other side opposite to the hinge is fixed by a plastic bolt connector 8; the flip plate 7 is clamped in the flip frame 5; the flip plate 7 adopts a composite grain plate 3. The flip plate 7 and the flip frame 5 are filled with colloid to ensure the safety of the flip plate 7 during transportation. The plastic bolt connector 8 is an M8×30 ​​nylon bolt, with a configuration of 1 bolt, 1 flat washer and 1 nut. The performance of the plastic bolt connector determines the pressure value of the flip pressure relief device, and different types of plastic bolt connectors can be selected according to different disclosures.

[0034] The size of the flip frame 5 is larger than that of the flip frame 4. In the closed state, the flip pressure relief device will not leak water or sound. The flip frame 5 and the flip frame 4 are provided with plastic bolt connection holes in the opening direction, and plastic bolt connectors 8 are installed at the connection holes. The pressing force of the plastic bolt connectors 8 after tightening can ensure that the flip frame 5 is not blown open by strong winds. When an explosion occurs in the sound insulation board and the internal pressure increases to a certain extent, the bolts of the plastic bolt connectors 8 are broken under stress. The static pressure of the flip frame 5 with the broken bolts is the action pressure value of the pressure relief device. The flip frame 5 starts to rotate through the hinge under pressure drive, thereby releasing the internal air pressure to protect key components from impact damage.

[0035] Specifically, the two metal frames 1 and the two opposite ends of the two metal frames 1 are provided with downwardly extending sealing plates 2, which are connected end to end to form a frame structure. The thickness of the supporting keel 9 and the sealing plate 2 is t=1.0-3.0 mm, the thickness of the zinc layer is 60 g / ㎡, and the height of the sealing plate 2 is h=100-150 mm.

[0036] The sealing plate 2 extending along the metal frame 1 has a C-shaped cross-section, which is wrapped around the outside of the metal frame 1 to ensure the support of the composite grain single board. The sealing plate 2 located between the two metal frames 1 covers the cross-section of the metal frame 1 and the cross-section of the sealing plate extending along the metal frame, and is used to close the side gap between the sealing plate extending along the metal frame and the lower edge of the metal frame 1.

[0037] In summary, the composite crystal grain fusible sound insulation board with pressure relief function of the utility model has the function of melting and falling off at a specific temperature, and its own flip pressure relief device can relieve pressure at a fixed pressure value, which can reliably protect key components from impact damage. At the same time, the top surface of the sound insulation board is flat and beautiful, and there will be no local accumulation of water and dust. The rubber strip 10 can effectively protect the composite crystal grain single board from damage during production, transportation, and installation.

[0038] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

Claims

1. A composite grain fusible sound insulation board with pressure relief function, characterized in that: The invention comprises a sound insulation board body; a reversing pressure relief device is arranged on the upper surface of the sound insulation board body; a composite grain plate which will automatically fall off when a specific temperature is reached is arranged on the upper surface of the sound insulation board body; the reversing pressure relief device will be reversed and opened after being impacted by a specific upward air pressure; when the composite grain plate has not fallen off and the reversing pressure relief device has not been opened, the surface of the sound insulation board body is in a non-porous state.

2. The composite grain fusible sound insulation board with pressure relief function according to claim 1, characterized in that: The sound insulation board body comprises two symmetrically arranged metal frames; the composite crystal plate is clamped between the two metal frames; and the overturning pressure relief device is arranged between the two metal frames.

3. The composite grain fusible sound insulation board with pressure relief function according to claim 2, characterized in that: A downwardly extending sealing plate is arranged between the two metal frame bodies and the two opposite ends of the two metal frames, and the sealing plates are connected end to end to form a frame structure.

4. The composite grain fusible sound insulation board with pressure relief function according to claim 2, characterized in that: A supporting keel is arranged between the two metal frames; each composite grain plate is supported on the upper surface of the supporting keel.

5. The composite grain fusible sound insulation board with pressure relief function according to claim 2, characterized in that: The flip pressure relief device includes a mounting platform, a flip frame, a flip frame and a flip plate; the mounting platform is arranged between two metal frames, the flip frame is fixed on the mounting platform, and the flip frame and the flip frame are coaxially arranged; the same side of the flip frame and the flip frame are hinged to each other, and the other side opposite to the hinge is fixed by a plastic bolt connector; the flip plate is clamped in the flip frame; the flip plate adopts a composite grain plate.

6. The composite grain fusible sound insulation board with pressure relief function according to claim 4, characterized in that: The metal frame is a C-shaped notch structure; the edge of the composite crystal board is provided with a first notch matched with the metal frame, the metal frame is arranged in the first notch, and the upper surface of the metal frame is flush with the upper surface of the composite crystal board.

7. The composite grain fusible sound insulation board with pressure relief function according to claim 6, characterized in that: A second notch is arranged on the bottom plate of the metal frame, and the end of the supporting keel is welded to the second notch, and the top surface of the supporting keel is flush with the bottom surface of the metal frame.

8. The composite grain fusible sound insulation board with pressure relief function according to claim 6, characterized in that: The cross section of the sealing plate extending along the metal frame is a C-shaped structure, which is wrapped around the outside of the metal frame; the sealing plate located between the two metal frames covers the cross section of the metal frames and the cross section of the sealing plate extending along the metal frames.

9. The composite grain fusible sound insulation board with pressure relief function according to claim 2, characterized in that: An adhesive strip is arranged between the composite crystal plate and the metal frame.

10. The composite grain fusible sound insulation board with pressure relief function according to claim 5, characterized in that: The space between the flip plate and the flip frame is filled with colloid.

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