CN211144931U

CN211144931U - But centrifugal fan of automatically cleaning

Info

Publication number: CN211144931U
Application number: CN201922194570.XU
Authority: CN
Inventors: 张贵
Original assignee: Hangzhou Qijiang Hvac Equipment Co Ltd
Current assignee: Hangzhou Qijiang Hvac Equipment Co Ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-07-31
Anticipated expiration: 2029-12-10

Abstract

The utility model relates to a but centrifugal fan of automatically cleaning, including spiral case, motor and the impeller of setting in the spiral case, its characterized in that: a spray pipe is further arranged in the volute and comprises a spray section and a spray head section, the spray section is provided with small holes, and the spray section is arranged above the impeller; the spray head section penetrates out of the volute, and a water outlet of the spray head section is positioned at an air inlet of the fan; the bottom of the volute is communicated with a drain pipe. The utility model discloses have wash convenient, can also give the beneficial effect of fan cooling when using.

Description

But centrifugal fan of automatically cleaning

Technical Field

The utility model relates to a fire-fighting equipment technical field, in particular to but centrifugal fan of automatically cleaning for discharging fume.

Background

At present, most of buildings in cities are high-rise buildings, and the safety of a fireproof smoke exhaust system is very important. If the fire-proof smoke exhaust system is not good enough, the system is easy to malfunction, and the serious consequences are usually caused. A large number of existing high-rise buildings are provided with a fire-fighting smoke exhaust system for exhausting a large amount of toxic dense smoke generated by fire burning. In the fire-fighting smoke exhaust system, a smoke exhaust fan is a core component, and the working stability determines the quality of the whole system. The existing fire-fighting smoke exhaust fan is poor in working stability due to the fact that the temperature of combustion smoke reaches 200-300 ℃, the continuous operation time is short, and a good smoke exhaust effect cannot be achieved. As disclosed in the Chinese utility model patent: CN2602202Y discloses a fire control cabinet type centrifugal fan, including casing, spiral case, impeller, motor, air inlet flange, air-out flange, the impeller pivot is connected with the casing by high temperature resistant bearing, and the motor is located the casing top, and the motor passes through the belt with the impeller pivot by the belt pulley and connects. Although the motor is arranged at the outer side of the casing, the motor works in a high-temperature environment due to the high temperature of the casing, and the stability is poor. In addition, the smoke often contains a large amount of dust, which easily causes the rotation failure of the impeller. The fan is not used for a long time, a large amount of dust can be deposited on the blades, hidden danger is generated for safe operation of the fan, and how to clean the fan, especially how to clean the blades on the impeller, is still a difficult problem at present.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a centrifugal fan that need not to disassemble the spiral case and can carry out abluent can automatically cleaning to inside blade.

In order to solve the technical problem, the utility model discloses a following technical scheme, but centrifugal fan of automatically cleaning, including spiral case, motor and the impeller of setting in the spiral case, its characterized in that: a spray pipe is further arranged in the volute and comprises a spray section and a spray head section, the spray section is provided with small holes, and the spray section is arranged above the impeller; the spray head section penetrates out of the volute, and a water outlet of the spray head section is positioned at an air inlet of the fan; the bottom of the volute is communicated with a drain pipe.

As a further improvement, the motor is connected with a controller, the controller is connected with a solenoid valve, the solenoid valve is installed at the section of intaking of shower. The user can start or close the electromagnetic valve through the controller, and then control the intaking of shower. Of course, a manual switch can be arranged at the water inlet section of the spray pipe for control.

Tap water entering the spray pipe is firstly sprayed out of the spray section and sprayed on the impeller to clean the impeller, and meanwhile, the tap water is sprayed into the volute from the water outlet of the spray head section to wash the impeller. After spraying, the motor can be started by using the controller to drive the impeller to rotate, the cleaning water is dried, a part of the cleaning water is thrown out from the air outlet, and a part of the cleaning water can be discharged from the water discharge pipe.

Of course, when a fire disaster happens, the centrifugal fan can also spray in the smoke discharging process, and the water sprayed out of the spraying pipes can not only clean the cigarette ash, but also cool the fan.

To sum up, the utility model discloses have wash the convenience, can also give the beneficial effect of fan cooling when using.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic perspective view.

Fig. 3 is a schematic side view.

Detailed Description

As shown in fig. 1, 2 and 3, a self-cleaning centrifugal fan includes a volute 1, a motor 2 and an impeller 3 disposed in the volute, a spray pipe 4 is further disposed in the volute 1, the spray pipe 4 includes a spray section 41 and a spray head section 42, the spray section 41 is provided with small holes, and the spray section 41 is disposed above the impeller 3; the spray head section 42 penetrates out of the volute 1, and the water outlet of the spray section is positioned at the air inlet of the fan; the bottom of the volute 1 is communicated with a drain pipe 5. The motor 2 is connected with a controller 6, the controller 6 is further connected with an electromagnetic valve 7, and the electromagnetic valve 7 is installed at a water inlet section of the spray pipe 4.

Claims

1. The utility model provides a but centrifugal fan of automatically cleaning, includes spiral case, motor and the impeller of setting in the spiral case which characterized in that: a spray pipe is further arranged in the volute and comprises a spray section and a spray head section, the spray section is provided with small holes, and the spray section is arranged above the impeller; the spray head section penetrates out of the volute, and a water outlet of the spray head section is positioned at an air inlet of the fan; the bottom of the volute is communicated with a drain pipe.

2. Self-cleanable centrifugal fan according to claim 1, characterized in that: the motor is connected with a controller, the controller is further connected with an electromagnetic valve, and the electromagnetic valve is installed at a water inlet section of the spray pipe.