Fire-fighting and noise-reducing device for transformer substation

Abstract

The invention provides a fire-fighting and noise-reducing device for a transformer substation, which comprises a closed cover body, the cover body is provided with a cover body wall, the top of the cover body wall is provided with a top frame, the top frame is internally provided with a top cover, the top of the top cover is provided with a cover-opening fire-retardant mechanism, one end of the top cover is hinged with the top frame, and the other end of the top cover is hinged with the cover-opening fire-retardant mechanism. A telescopic component for driving the top cover to be opened or closed is arranged on the top frame, a fire behavior detection component is arranged at the bottom of the top cover, and a fire extinguishing system is arranged below the top cover; according to the invention, a relatively closed space is formed by the cover body wall and the top cover, so that a sound transmission path can be blocked, and the purpose of noise reduction is achieved; when the fire behavior detection component recognizes a fire behavior, the fire extinguishing system is started to extinguish fire; if the fire behavior is large, the fire extinguishing system cannot effectively control the fire behavior in the cover body in time, the telescopic component drives the top cover to be opened, and the fire behavior in the cover body is extinguished through external fire-fighting equipment; after the top covers are opened, the cover-opening fire-retarding mechanism can form a fire-retarding barrier between the top covers, and upward diffusion is prevented.

Description

Technical Field

[0001] This invention belongs to the field of substation technology, specifically relating to a fire protection and noise reduction device for a substation. Background Technology

[0002] Due to the unique structure of indoor substation buildings and the operating characteristics of related equipment, substations have strict requirements for fire prevention, and at the same time, they must strictly control the impact of noise on staff inside the station and residents outside the station.

[0003] In the prior art, Chinese invention patent with authorization announcement number CN112271626B discloses a fire protection and noise reduction device for an indoor substation.

[0004] In terms of noise reduction, it relies solely on sound waves entering the chamber through "sound radiation inlet holes" to excite membrane vibration. This method can only handle a limited level of sound energy, and its effect is weak compared to the huge noise source of the substation itself. In addition, an ideal soundproof enclosure should be kept as sealed as possible, and opening holes will significantly weaken the overall sound insulation performance.

[0005] In terms of firefighting, this device utilizes the thermal expansion of magnesium oxide rods to trigger the detachment of the transformer room roof, allowing external fire extinguishing materials to enter from the top. However, the structure itself cannot directly extinguish fires; after the transformer room roof detaches, the fire entering from outside air will spread upwards. Moreover, the thermal expansion coefficient and deformation of the magnesium oxide rods are easily affected by factors such as environmental humidity, material aging, and dust accumulation, leading to inaccurate activation points, potential malfunctions, or failure to activate, resulting in poor reliability.

[0006] Therefore, it is necessary to design a fire-fighting and noise reduction device for substations that can improve noise reduction, prevent fire from spreading upwards, and enhance the initiative and reliability of fire fighting to solve the current technical problems. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a fire-fighting and noise reduction device for substations that improves noise reduction, prevents fire from spreading upwards, and enhances the initiative and reliability of fire fighting.

[0008] The technical solution of the present invention is as follows: a fire protection and noise reduction device for a substation, comprising a closed enclosure, the enclosure having an enclosure wall, a top frame provided at the top of the enclosure wall, a top cover provided inside the top frame, a fire-stopping mechanism provided at the top of the top cover, one end of the top cover being hinged to the top frame, a telescopic component provided on the top frame for driving the top cover to open or close, a fire detection component provided at the bottom of the top cover, and a fire extinguishing system provided below the top cover; both the enclosure wall and the top cover have a flame-retardant sound-absorbing layer, a middle sound-insulating layer, and a fire-resistant outer layer arranged sequentially from the inside to the outside.

[0009] Furthermore, two top covers are symmetrically arranged inside the top frame, and one end of the two top covers facing away from each other is rotatably connected to the top frame; the fire-arresting mechanism for opening the cover has a fire-arresting cloth, and the two ends of the fire-arresting cloth are slidably connected to the two top covers respectively.

[0010] Furthermore, support rods are fixedly fitted inside both ends of the fire-resistant cloth, and sliders are fixedly installed at both ends of the support rods. Sliding rods are slidably fitted inside the sliders, and the two ends of the sliding rods are fixedly mounted above the top cover.

[0011] Furthermore, supports are fixedly installed at both ends of the slide rod, and a crossbeam is fixedly installed at the bottom of the support, and the crossbeam is fixedly installed on the top of the top cover.

[0012] Furthermore, a spring is fitted on the outer side of the slide rod between the slider and the support near the middle of the top frame.

[0013] Furthermore, the fire-arresting mechanism for opening the cover also includes a roller, with shaft seats rotatably provided at both ends of the roller, and the shaft seats are fixedly installed on the top of the crossbeam near the middle of the top frame.

[0014] Furthermore, the fire protection and noise reduction device of the substation also includes a controller, and the fire extinguishing system includes a fire extinguishing medium storage tank, a solenoid valve and a nozzle, which are connected to each other through a fire extinguishing medium pipeline; the fire detection component and the solenoid valve are both connected to the controller.

[0015] Furthermore, the telescopic component is connected to the controller, and the controller is equipped with a control panel.

[0016] Furthermore, the flame-retardant sound-absorbing layer is a ceramic fiber cotton board or an aluminum fiber sound-absorbing board; the intermediate sound-insulating layer is a lead-plastic board; and the fire-resistant outer layer is an aluminum-zinc coated steel plate.

[0017] Furthermore, a damping constraint layer is provided between the intermediate sound-insulating layer and the fire-resistant outer layer; the damping constraint layer has a constraint layer and a damping layer, and the constraint layer is disposed on the side close to the intermediate sound-insulating layer; the constraint layer is an aluminum plate or a steel plate, and the damping layer is a viscoelastic polymer material coating.

[0018] The beneficial effects of this invention are: (1) In this invention, the cover wall and the top cover form a relatively closed space, which can block the propagation path of sound and achieve the purpose of noise reduction; (2) The fire detection component is used to monitor the inside of the enclosure and to activate the fire extinguishing system when a fire is detected. (3) If the fire is too large and the fire extinguishing system cannot control the fire inside the enclosure in a timely and effective manner, the telescopic component can drive the top cover to open and further extinguish the fire inside the enclosure through external fire-fighting facilities. (4) After the top cover is opened, the fire-arresting mechanism can form a fire barrier between the top covers after they are opened, thereby controlling the fire inside the fire-arresting mechanism and preventing it from spreading upward. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the fire protection and noise reduction device for a substation in this invention.

[0020] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0021] Figure 3 This is one of the partial structural schematic diagrams of the fire protection and noise reduction device for a substation in this invention.

[0022] Figure 4 for Figure 3 A magnified view of a section at point B.

[0023] Figure 5 This is the second partial structural schematic diagram of the fire protection and noise reduction device for the substation in this invention.

[0024] Figure 6 This is a schematic diagram of the fire extinguishing system in this invention.

[0025] Figure 7 This is a schematic diagram of the internal structure of the cover wall and top cover in this invention. Detailed Implementation

[0026] Various exemplary embodiments of the invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the invention or its application or use. The invention can be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the invention thorough and complete, and to fully express the scope of the invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0027] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, without excluding the possibility of encompassing other elements. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] like Figures 1 to 7 As shown, a fire-fighting and noise reduction device for a substation is disclosed, comprising a closed enclosure with enclosure wall 1, a top frame 2 at the top of enclosure wall 1, a top cover 3 inside the top frame 2, a fire-stopping mechanism 4 at the top of the top cover 3, one end of the top cover 3 being hinged to the top frame 2, a telescopic component 5 on the top frame 2 for driving the top cover 3 to open or close, a fire detection component 6 at the bottom of the top cover 3, and a fire extinguishing system 7 below the top cover 3; both enclosure wall 1 and top cover 3 have a flame-retardant sound-absorbing layer 11, a middle sound-insulating layer 12, and a fire-resistant outer layer 13 arranged sequentially from the inside out; in this embodiment, the enclosure... The body wall 1 and the top cover 3 form a relatively enclosed space, which can block the sound propagation path and achieve the purpose of noise reduction; the fire detection component 6 is used to monitor the inside of the enclosure. When a fire is detected, the fire extinguishing system 7 is activated to extinguish the fire; if the fire is large and the fire extinguishing system 7 cannot control the fire inside the enclosure in a timely and effective manner, the telescopic component 5 can drive the top cover 3 to open, and the fire inside the enclosure can be further extinguished by external fire-fighting facilities; after the top cover 3 is opened, the fire-blocking mechanism 4 can form a fire barrier between the opened top covers 3, thereby controlling the fire inside the fire-blocking mechanism 4 and preventing it from spreading upward.

[0029] As a specific implementation of the fire-arresting mechanism 4, two top covers 3 are symmetrically arranged inside the top frame 2, and the opposite ends of the two top covers 3 are rotatably connected to the top frame 2; the fire-arresting mechanism 4 has a fire-arresting cloth 41, and the two ends of the fire-arresting cloth 41 are slidably connected to the two top covers 3 respectively; if the fire is large and the fire extinguishing system 7 cannot control the fire inside the enclosure in a timely and effective manner, the telescopic component 5 moves synchronously, driving the two top covers 3 to open at the same time. While the top covers 3 are opening, the two ends of the fire-arresting cloth 41 slide on the two top covers 3 respectively. The fire-arresting cloth 41 forms a fire barrier between the ends of the two top covers 3 after opening, controlling the fire below the fire-arresting cloth 41 and preventing it from spreading upward.

[0030] In some embodiments, support rods 42 are fixedly fitted inside both ends of the fire-resistant cloth 41, and sliders 43 are fixedly installed at both ends of the support rods 42. Sliding rods 44 are slidably fitted inside the sliders 43, and the two ends of the sliding rods 44 are fixedly mounted above the top cover 3. When the top cover 3 is opened, it pushes the fire-resistant cloth 41, causing the support rods 42 at both ends to slide along the sliding rods 44.

[0031] In some embodiments, as a specific implementation of the slide rod 44 being fixedly mounted on the top cover 3, both ends of the slide rod 44 are fixedly provided with supports 46, and the bottom of the supports 46 is fixedly provided with a crossbeam 47, which is fixedly mounted on the top of the top cover 3; specifically, the bottom of the crossbeam 47 has a groove that matches the top cover 3, the top cover 3 is fitted into the groove of the crossbeam 47 and fixed by welding; the supports 46 and the crossbeam 47 are an integral structure, and the supports 46 provide stable support for both ends of the slide rod 44.

[0032] In some embodiments, a spring 45 is fitted on the outside of the slide rod 44 between the slider 43 and the support 46 near the middle of the top frame 2; the elastic force of the spring 45 acts on the slider 43, and under the continuous action of the elastic force of the spring 45, the two support rods 42 tension the fire-resistant cloth 41 to keep it flat; during the closing process of the top cover 3, the spring 45 pushes the support rod 42 to gradually return to its original position, so as to prevent the fire-resistant cloth 41 from being squeezed between the two top covers 3 and affecting its closing.

[0033] In some embodiments, such as Figure 3 and 4 As shown, the fire-arresting mechanism 4 also includes a roller 48, with a bearing 49 rotatably mounted at both ends of the roller 48. The bearing 49 is fixedly mounted on the top of the crossbeam 47 near the middle of the top frame 2. The roller 48 provides sliding support to the bottom of the fire-arresting cloth 41, reducing the friction between the fire-arresting cloth 41 and the end of the top cover 3 during the opening of the top cover.

[0034] In some embodiments, the fire protection and noise reduction device of the substation further includes a controller 8, and the fire extinguishing system 7 includes a fire extinguishing medium storage tank 72, a solenoid valve 73, and a nozzle 71. The fire extinguishing medium storage tank 72, the solenoid valve 73, and the nozzle 71 are connected through a fire extinguishing medium pipeline 74. The fire detection component 6 and the solenoid valve 73 are both connected to the controller 8. The fire detection component 6 is used to identify the fire. After the fire detection component 6 identifies the fire, the controller 8 controls the solenoid valve 73 to connect the fire extinguishing medium pipeline 74, and the fire extinguishing medium stored in the fire extinguishing medium storage tank 72 is sprayed out from the nozzle 71 to extinguish the fire.

[0035] As one specific implementation of the fire detection component 6, the fire detection component 6 can use one or more of the following: heat detector, smoke detector, flame detector, and gas detector to achieve early and accurate fire detection.

[0036] As one specific embodiment of the fire extinguishing medium storage tank 72, the fire extinguishing medium storage tank 72 can store any one of the fire extinguishing agents such as carbon dioxide, heptafluoropropane, and IG-541.

[0037] In some embodiments, the telescopic component 5 is connected to the controller 8, and the controller 8 is connected to the control panel 9. If the fire is large and the fire extinguishing system 7 cannot control the fire inside the enclosure in a timely and effective manner, the control panel 9 inputs a control command to the controller 8. After receiving the control command, the controller 8 controls the telescopic component 5 to extend, causing the top cover 3 to open, so that the fire inside the enclosure can be further extinguished by external fire-fighting facilities.

[0038] As one specific embodiment of the telescopic component 5, the telescopic component 5 is an electric actuator, a hydraulic cylinder, or a pneumatic cylinder, preferably an electric actuator.

[0039] In some embodiments, such as Figure 7 As shown, the flame-retardant sound-absorbing layer is made of ceramic fiber cotton board or aluminum fiber sound-absorbing board, which has the effects of high temperature resistance, flame retardancy and sound absorption; the middle sound insulation layer is made of lead-plastic board, which has the effect of blocking sound transmission; the fire-resistant outer layer is made of aluminum-zinc coated steel plate, which has the effect of support and protection.

[0040] In some embodiments, a damping constraint layer 14 is provided between the intermediate sound insulation layer 12 and the fire-resistant outer layer 13. Although the high-strength intermediate sound insulation layer 12 can effectively block airborne sound, when the energy of the sound wave is large enough, it will force the entire plate structure to vibrate like a drumhead, thereby radiating secondary noise. The core function of the damping constraint layer 14 is to quickly attenuate this structural vibration and convert the vibration mechanical energy into heat energy.

[0041] Specifically, the damping constraint layer 14 has a constraint layer 142 and a damping layer 141. The constraint layer 142 is disposed on one side near the intermediate sound insulation layer 12. The constraint layer 142 is an aluminum plate or a steel plate, and the damping layer 141 is a viscoelastic polymer material coating. More specifically, the constraint layer 142 is an aluminum plate or a steel plate with a thickness of 0.3~1.0 mm. The constraint layer 142 covers one side of the damping layer 141. The damping layer 141 is a viscoelastic polymer material coating with a thickness of 1~3 mm. The viscoelastic polymer material can be selected from damping adhesives / dampening coatings based on acrylic, rubber, or polyurethane.

[0042] In some embodiments, a baffle 21 is provided on the inner side of the top frame 2. After the top frame 2 is fitted onto the upper end of the cover wall 1, the bottom of the baffle 21 abuts against the upper end of the cover wall 1, and the top frame 2 and the cover wall 1 are fixed together by adhesive.

[0043] The various embodiments of the present invention have now been described in detail. To avoid obscuring the concept of the invention, some details known in the art have not been described. Those skilled in the art will fully understand how to implement the technical solutions disclosed herein based on the above description.

[0044] The embodiments described above only illustrate some implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A fire protection and noise reduction device for a substation, characterized by: It includes a closed enclosure with enclosure walls, a top frame at the top of the enclosure walls, a top cover inside the top frame, a fire-stopping mechanism at the top of the top cover, one end of the top cover being hinged to the top frame, a telescopic component on the top frame for driving the top cover to open or close, a fire detection component at the bottom of the top cover, and a fire extinguishing system below the top cover. Both the cover wall and the top cover have a flame-retardant sound-absorbing layer, a middle sound-insulating layer and a fire-resistant outer layer arranged sequentially from the inside to the outside.

2. The substation fire and noise reduction apparatus of claim 1, wherein: The top frame has two top covers symmetrically arranged inside, and the opposite ends of the two top covers are rotatably connected to the top frame. The fire-arresting mechanism has a fire-arresting cloth at both ends, which are slidably connected to the two top covers respectively.

3. The fire protection and noise reduction device for a substation according to claim 2, characterized in that: Both ends of the fire-retardant cloth are fixedly fitted with support rods, and both ends of the support rods are fixedly fitted with sliders. The sliders are fitted with sliding rods, and both ends of the sliding rods are fixedly mounted above the top cover.

4. The fire protection and noise reduction device for a substation according to claim 3, characterized in that: Both ends of the slide rod are fixedly provided with supports, and the bottom of the supports is fixedly provided with crossbeams, which are fixedly provided on the top of the top cover.

5. The fire protection and noise reduction device for a substation according to claim 4, characterized in that: A spring is fitted on the outer side of the slide rod between the slider and the support near the middle of the top frame.

6. The fire protection and noise reduction device for a substation according to claim 4, characterized in that: The fire-arresting mechanism for opening the cover also includes a roller, and the roller has a bearing seat rotatably mounted at both ends. The bearing seat is fixedly mounted on the top of the crossbeam near the middle of the top frame.

7. The fire protection and noise reduction device for a substation according to claim 1, characterized in that: It also includes a controller. The fire extinguishing system includes a fire extinguishing medium storage tank, a solenoid valve, and nozzles. The fire extinguishing medium storage tank, solenoid valve, and nozzles are connected by fire extinguishing medium pipelines. The fire detection component and the solenoid valve are both connected to the controller.

8. The fire protection and noise reduction device for a substation according to claim 7, characterized in that: The telescopic component is connected to the controller, and the controller is equipped with a control panel.

9. The fire protection and noise reduction device for a substation according to claim 1, characterized in that: The flame-retardant sound-absorbing layer is a ceramic fiber cotton board or an aluminum fiber sound-absorbing board; the middle sound-insulating layer is a lead-plastic board; and the fire-resistant outer layer is an aluminum-zinc coated steel plate.

10. The fire protection and noise reduction device for a substation according to claim 1, characterized in that: A damping constraint layer is provided between the intermediate sound insulation layer and the fire-resistant outer layer; The damping constraint layer has a constraint layer and a damping layer, and the constraint layer is disposed on the side close to the intermediate sound barrier layer. The constraint layer is an aluminum plate or a steel plate, and the damping layer is a viscoelastic polymer material coating.

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