Fan cabinet with fire resistance, heat insulation performance and natural ventilation function

Abstract

The utility model discloses a fan cabinet with fire resistance, heat insulation performance and natural ventilation function, which comprises a cabinet bottom plate, a cabinet top plate and a cabinet side plate, a cabinet cavity is enclosed by the cabinet bottom plate, the cabinet top plate and the cabinet side plate, the cabinet bottom plate, the cabinet top plate and the cabinet side plate comprise cabinet body inner-layer steel plates positioned on the inner sides, the outer sides of the cabinet body inner-layer steel plates are provided with non-combustible heat preservation and insulation layers, and the cabinet body inner-layer steel plates are provided with non-combustible heat preservation and insulation layers. A keel is arranged outside the non-combustible heat preservation and insulation layer, a fireproof color steel plate is arranged outside the keel, and a fan control unit is contained in the cabinet cavity. The fan control cabinet effectively meets the requirements of fire resistance, heat insulation and wind pressure resistance and can be directly installed in a tunnel cavern, the cavern does not need to be additionally provided with a protective door, and potential safety hazards of driving caused by installation of the protective door are avoided. The fan control cabinet is provided with a high-efficiency natural ventilation device, so that the natural defect that the air cooling effect in a high-altitude area is weakened can be overcome, and the fan control cabinet can meet the use requirements of high-altitude tunnels.

Description

Technical Field

[0001] The utility model belongs to the technical fields of railway tunnel engineering and urban rail transit tunnel engineering, and particularly relates to a fan cabinet with fireproof and heat-insulating performance and natural ventilation function. Background Art

[0002] Railway tunnels and urban rail transit tunnels are provided with ventilation equipment such as fans, fan control cabinets, and air valves according to ventilation requirements. Among them, the fan control cabinets are generally installed in the tunnel chambers, and the chambers are provided with protective doors. However, during the operation and maintenance of actual projects, the protective doors frequently expose potential safety hazards to train operation.

[0003] To avoid the safety hazards caused by installing protective doors, when the protective doors are no longer installed in the fan control cabinet chambers, the fan control cabinets will be exposed to the main tunnel. The cabinets will be directly impacted by the piston wind of high-speed trains. When a fire occurs, the fan control cabinets near the ignition point will be directly exposed to the high-temperature smoke. Therefore, limited protective measures for the fan control cabinets need to be considered.

[0004] At the same time, since a large number of electrical components are installed in the fan control cabinet, the electrical components will emit a large amount of heat during operation. If the heat dissipated in the cabinet cannot be removed in time, the electrical components may be damaged due to excessive temperature in the cabinet. Therefore, effective heat dissipation of the fan control cabinet also needs to be considered. Summary of the Invention

[0005] The utility model is proposed to solve the problems existing in the prior art, and its purpose is to provide a fan cabinet with fireproof and heat-insulating performance and natural ventilation function.

[0006] The technical solution of the utility model is: a fan cabinet with fireproof and heat-insulating performance and natural ventilation function, including a box bottom plate, a box top plate, and box side plates. The box bottom plate, box top plate, and box side plates enclose to form a cabinet cavity. The box bottom plate, box top plate, and box side plates include an inner cabinet layer steel plate. An incombustible heat-insulating layer is arranged outside the inner cabinet layer steel plate. A keel is arranged outside the incombustible heat-insulating layer. A fireproof color steel plate is arranged outside the keel. A fan control unit is accommodated in the cabinet cavity.

[0007] Furthermore, a ventilation structure is formed in the box top plate and box side plates, and the ventilation structure connects the cabinet cavity with the external space.

[0008] Furthermore, a first fireproof air vent is formed in the box side plate, and the first fireproof air vent is integrally opened in the inner cabinet layer steel plate, incombustible heat-insulating layer, and fireproof color steel plate.

[0009] Furthermore, the first fireproof air vent is arranged at a position close to the box bottom plate and far from the box top plate.

[0010] Furthermore, a second fire vent is formed in the top plate of the box, and the second fire vent is integrally opened in the inner layer steel plate of the cabinet, the non-combustible heat-insulating layer, and the fire-proof color steel plate.

[0011] Furthermore, the second fire vent is located in the middle of the top plate of the box.

[0012] Furthermore, an air collecting hood is arranged in the cabinet cavity, the air collecting hood is communicated with the second fire vent, and the large-diameter opening of the air collecting hood faces the fan control unit.

[0013] Furthermore, the lowermost fan control unit is higher than the first fire vent.

[0014] Furthermore, a wind shelter structure is also arranged at the second fire vent.

[0015] The beneficial effects of the present utility model are as follows:

[0016] The fan control cabinet of the present utility model effectively meets the requirements of fire resistance and heat insulation as well as wind pressure resistance, can be directly installed in the tunnel chamber, and there is no need to additionally set a protective door in the chamber, thus avoiding the potential safety hazards to vehicle operation caused by installing the protective door.

[0017] The fan control cabinet of the present utility model is provided with an efficient natural ventilation device, which can make up for the natural defect that the air cooling effect weakens in high-altitude areas and can meet the use requirements of high-altitude tunnels.

[0018] The present utility model has low requirements for civil engineering installation, strong adaptability, can be widely applied to various railway and urban rail tunnel projects, and has broad industrialization prospects. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of the present utility model;

[0020] Wherein:

[0021] 1 Inner layer steel plate of the cabinet 2 Non-combustible heat-insulating layer

[0022] 3 Keel 4 Fire-proof color steel plate

[0023] 5 Filter net 6 First fire vent

[0024] 7 Wind shelter cap 8 Wind cap connecting pipe

[0025] 9 Second fire vent 10 Air collecting hood

[0026] 11 Fan control unit. Detailed Embodiments

[0027] Hereinafter, the present utility model will be described in detail with reference to the drawings and embodiments:

[0028] As Figure 1 shown, a fan cabinet with fireproof and heat insulation performance and natural ventilation function includes a box bottom plate, a box top plate, and box side plates. The box bottom plate, box top plate, and box side plates enclose to form a cabinet cavity. The box bottom plate, box top plate, and box side plates include an inner cabinet layer steel plate 1 on the inner side. An incombustible heat insulation layer 2 is arranged outside the inner cabinet layer steel plate 1. A keel 3 is arranged outside the incombustible heat insulation layer 2. A fireproof color steel plate 4 is arranged outside the keel 3. A fan control unit 11 is accommodated in the cabinet cavity.

[0029] Furthermore, a ventilation structure is formed in the box top plate and box side plates, and the ventilation structure communicates the cabinet cavity with the external space.

[0030] Furthermore, a first fireproof air vent 6 is formed in the box side plate, and the first fireproof air vent 6 is integrally opened in the inner cabinet layer steel plate 1, incombustible heat insulation layer 2, and fireproof color steel plate 4.

[0031] Furthermore, the first fireproof air vent 6 is arranged at a position close to the box bottom plate and far from the box top plate.

[0032] Furthermore, a second fireproof air vent 9 is formed in the box top plate, and the second fireproof air vent 9 is integrally opened in the inner cabinet layer steel plate 1, incombustible heat insulation layer 2, and fireproof color steel plate 4.

[0033] Furthermore, the second fireproof air vent 9 is located in the middle of the box top plate.

[0034] Furthermore, an air collecting hood 10 is arranged in the cabinet cavity. The air collecting hood 10 is communicated with the second fireproof air vent 9, and the large-diameter opening of the air collecting hood 10 faces the fan control unit 11.

[0035] Furthermore, the lowest fan control unit 11 is higher than the first fireproof air vent 6.

[0036] Furthermore, a wind shelter structure is also arranged at the second fireproof air vent 9.

[0037] Specifically, the free end of the air collecting hood 10 is connected to the inner cabinet layer steel plate 1 of the box side plate.

[0038] Specifically, the wind shelter structure includes a wind shelter cap 7. The wind shelter cap 7 is communicated with a wind cap connecting pipe 8, and the wind cap connecting pipe 8 is communicated with the second fireproof air vent 9. Embodiment

[0039] A fan cabinet with fireproof and heat-insulating properties and natural ventilation function, comprising a box bottom plate, a box top plate, and box side plates. The box bottom plate, box top plate, and box side plates enclose to form a cabinet cavity. The box bottom plate, box top plate, and box side plates include an inner cabinet layer steel plate 1. Outside the inner cabinet layer steel plate 1, there is a non-combustible heat-insulating layer 2. Outside the non-combustible heat-insulating layer 2, there is a keel 3. Outside the keel 3, there is a fireproof color steel plate 4. A fan control unit 11 is accommodated in the cabinet cavity.

[0040] Furthermore, a ventilation structure is formed in the box top plate and box side plates, and the ventilation structure communicates the cabinet cavity with the external space.

[0041] Furthermore, a first fireproof air vent 6 is formed in the box side plate, and the first fireproof air vent 6 is integrally opened in the inner cabinet layer steel plate 1, non-combustible heat-insulating layer 2, and fireproof color steel plate 4.

[0042] Furthermore, the first fireproof air vent 6 is arranged at a position close to the box bottom plate and far from the box top plate.

[0043] Furthermore, a second fireproof air vent 9 is formed in the box top plate, and the second fireproof air vent 9 is integrally opened in the inner cabinet layer steel plate 1, non-combustible heat-insulating layer 2, and fireproof color steel plate 4.

[0044] Furthermore, the second fireproof air vent 9 is located in the middle of the box top plate.

[0045] Furthermore, an air collecting hood 10 is arranged in the cabinet cavity. The air collecting hood 10 is communicated with the second fireproof air vent 9, and the large-diameter opening of the air collecting hood 10 faces the fan control unit 11.

[0046] Furthermore, the lowest fan control unit 11 is higher than the first fireproof air vent 6.

[0047] Furthermore, a wind shelter structure is also arranged at the second fireproof air vent 9.

[0048] Specifically, the free end of the air collecting hood 10 is connected to the inner cabinet layer steel plate 1 of the box side plate.

[0049] Specifically, the wind shelter structure includes a wind shelter cap 7. The wind shelter cap 7 is communicated with a wind cap connecting pipe 8, and the wind cap connecting pipe 8 is communicated with the second fireproof air vent 9.

[0050] In this embodiment, the first fireproof air vent 6 is an air inlet, and a filter net 5 is only arranged at the first fireproof air vent 6.

[0051] In this embodiment, the first fireproof air vents 6 are formed oppositely in the box side plates. The first fireproof air vents 6 are arranged in two side walls of the box side plates and are opposite in the horizontal position.

[0052] Specifically, the non-combustible thermal insulation layer 2 is made of Class A non-combustible thermal insulation material.

[0053] Specifically, the inner layer steel plate 1, the non-combustible thermal insulation layer 2, the fireproof color steel plate 4, and the keel 3 of the control cabinet are combined into an integral whole, meeting the performance requirements of fireproof heat insulation and wind pressure resistance of the control cabinet body. The fan control cabinet can be exposed directly in the tunnel main hole to withstand the impact of the piston wind of high-speed trains. When a fire occurs in the tunnel, the fan control cabinet can also be directly exposed to the high-temperature flue gas.

[0054] Specifically, an air shelter cap 7 is arranged at the upper part of the fan control cabinet body. The air shelter cap 7 is connected to the air collecting hood 10 inside the cabinet through an air cap connecting pipe 8. The air shelter cap 7 is installed at the second fireproof air vent 9. By utilizing the piston wind and natural wind in the tunnel, a negative pressure area is formed at the exhaust port of the air shelter cap 7, increasing the suction force of the exhaust holes of the fan control cabinet and enhancing the natural ventilation capacity of the control cabinet.

[0055] Specifically, the air collecting hood 10 is installed at the upper part inside the control cabinet to collect and divert the hot air inside the control cabinet, and ventilation is carried out by utilizing the thermal pressure difference between the second fireproof air vent 9 and the first fireproof air vent 6 of the control cabinet.

[0056] Specifically, the air shelter cap 7 is a cylindrical air cap. The cylindrical air cap can not only utilize the thermal pressure between the second fireproof air vent 9 and the first fireproof air vent 6 of the control cabinet for natural ventilation, but also exhaust air only by means of the wind pressure. The air cap connecting pipe 8 passes through the second fireproof air vent 9. The second fireproof air vent 9 can automatically fuse and close when the flue gas temperature exceeds 70°C under fire conditions, playing a role in protecting the electrical components inside the control cabinet.

[0057] Specifically, a first fireproof air vent 6 is arranged at the lower part of the fan control cabinet body. The first fireproof air vent 6 can automatically fuse and close when the flue gas temperature exceeds 70°C under fire conditions, playing a role in protecting the electrical components inside the control cabinet. A filter screen 5 is arranged inside the first fireproof air vent 6. The filter screen 5 can filter and block dust and the like in the air, preventing dust accumulation on the surface of the electrical components inside the fan control cabinet and damaging the equipment.

[0058] Specifically, the first fireproof air vent 6 and the second fireproof air vent 9 are commercially available fireproof air vents in the construction industry.

[0059] Specifically, the filter screen 5 is detachable. When the filter screen 5 accumulates a lot of dust, it can be detached for cleaning or replacement to prevent the air inlet holes at the lower part of the control cabinet from being blocked.

[0060] The fan control cabinet of the present utility model effectively meets the requirements of fire resistance heat insulation and wind pressure resistance, and can be directly installed in the tunnel chamber. There is no need to additionally set a protective door in the chamber, avoiding the potential safety hazards to train operation caused by installing the protective door.

[0061] The fan control cabinet of the utility model is provided with an efficient natural ventilation device, which can make up for the natural defect of the weakened air cooling effect in high-altitude areas and can meet the use requirements of high-altitude tunnels.

[0062] The utility model has low requirements for installation civil engineering and strong adaptability, and can be widely applied to various railway and urban rail tunnel projects, with broad industrialization prospects.

Claims

1. A fan cabinet with fire-resistant and heat-insulating performance and natural ventilation function, comprising a box bottom plate, a box top plate, and box side plates. The box bottom plate, the box top plate, and the box side plates enclose to form a cabinet cavity, and it is characterized in that: The box bottom plate, box top plate, and box side plates include the inner-layer steel plate (1) of the cabinet located on the inner side. An incombustible thermal insulation layer (2) is provided outside the inner-layer steel plate (1) of the cabinet. A keel (3) is provided outside the incombustible thermal insulation layer (2). A fireproof color steel plate (4) is provided outside the keel (3). A fan control unit (11) is accommodated in the cabinet cavity; A ventilation structure is formed in the box top plate and box side plates, and the ventilation structure communicates the cabinet cavity with the external space; A first fireproof air vent (6) is formed in the box side plates, and the first fireproof air vent (6) is integrally opened in the inner-layer steel plate (1) of the cabinet, the incombustible thermal insulation layer (2), and the fireproof color steel plate (4).

2. The blower cabinet with fireproof and heat insulation performance and natural ventilation function according to claim 1, characterized in that: The first fireproof air vent (6) is arranged at a position close to the box bottom plate and far from the box top plate.

3. The air blower cabinet with fireproof heat insulation performance and natural ventilation function according to claim 1, characterized in that: A second fireproof air vent (9) is formed in the box top plate, and the second fireproof air vent (9) is integrally opened in the inner-layer steel plate (1) of the cabinet, the incombustible thermal insulation layer (2), and the fireproof color steel plate (4).

4. The blower cabinet with fireproof and heat-insulating performance and natural ventilation function according to claim 3, characterized in that: The second fireproof air vent (9) is located in the middle of the box top plate.

5. The blower cabinet with fire-resistant and heat-insulating performance and natural ventilation function according to claim 4, characterized in that: A gas collecting hood (10) is arranged in the cabinet cavity. The gas collecting hood (10) is communicated with the second fireproof air vent (9), and the large-diameter opening of the gas collecting hood (10) faces the fan control unit (11).

6. The blower cabinet with fireproof and heat insulation performance and natural ventilation function according to claim 5, characterized in that: The lowermost fan control unit (11) is higher than the first fireproof air vent (6).

7. The blower cabinet with fire-resistant and heat-insulating performance and natural ventilation function according to claim 6, wherein: A wind shelter structure is also arranged at the second fireproof air vent (9).

Images