Fan coil capable of being cleaned and disinfected without disassembling and cleaning and disinfecting method

Abstract

The invention discloses a fan coil capable of being cleaned and disinfected without disassembling. The fan coil capable of being cleaned and disinfected without disassembling comprises an air return box, a coil box body, a fan and a condensate water disc, wherein a coil is arranged in the coil box body; the fan comprises a motor, impellers, volutes and a fan support; the volutes are fixed on the fan support; the air outlet of each volute faces to the coil and is located on the lower part of the volute; the fan support is connected with the air return box through a connector; the upper part of the fan support is fixedly provided with a cleaning and disinfecting main pipeline; external branch pipelines and internal branch pipelines are arranged on the cleaning and infecting main pipeline; the external branch pipelines are distributed on the left and right sides of each volute, and the water outlets of the external branch pipelines are bent to the impellers; the internal branch pipelines penetrate through the fan support; and the water outlets of the internal branch pipelines face to the coil. The invention further provides an automatic cleaning and disinfecting method for the fan coil. By adopting the fan coil and the automatic cleaning and disinfecting method, disassembling-free cleaning and disinfecting of the fan coil are realized; the positions of the air outlets of the volutes are improved; cleaning is clean and thorough; and the problems that water is accumulated or leaked in current volutes and water enters a bearing are solved.

Description

technical field [0001] The invention relates to a fan coil without disassembly cleaning and disinfection and a cleaning and disinfection method for the fan coil, belonging to the technical field of cleaning and disinfection of central air conditioners. Background technique [0002] The central air-conditioning cleaning industry began to develop in 2003. Since 2003, due to the sudden "SARS" epidemic, domestic attention has been paid to the central air-conditioning ventilation ducts that have been neglected for many years. Premier Wen Jiabao, who was the Premier of the State Council at the time, gave instructions, which opened the central air-conditioning cleaning industry. As early as 2004, the Ministry of Health organized supervision and inspection of the sanitation status of centralized air-conditioning and ventilation systems in public places in 30 provinces, autonomous regions, and municipalities directly under the Central Government. A total of 937 public places in more...

AI Technical Summary

Problems solved by technology

For the convenience of installation, it is assembled on the ground and then hoisted. Due to space design requirements, the space on the top and bottom of the air return box is generally small, and it is difficult to use tools. It is inconvenient to disassemble and restore by riveting. It is connected by self-tapping screws, which should not be repeated. to disassemble

In addition, the connection between the fan coil parts is a self-tapping connection, and repeated disassembly may cause slippage, etc., and the connection between the fan part and the coil needs to be insulated and isolated, and the insulation layer is easy to fall off under the action of cold and heat. Disassemble, clean and disinfect, need to restore heat preservation

Insulation wear will cause condensation on the outer surface of the fan during cooling

[0005] 2. Most of the fan coil units are concealed, and most of the cleaning and disinfection require personnel to fully enter the roof through the inspection port to work. Uneven application of force may easily cause the roof to crack or collapse, and the wiring inside the roof is complicated, and the initial installation and construction Or if there is irregular construction or aging lines during the later transformation, it is very easy to cause dangerous situations such as electric shock

[0006] 3. It is difficult to disassemble, clean and disinfect fan coil units, and the cost is relatively high. Generally, managers in public places do not pay much attention to the safety of the air system, and the high cost of cleaning and disinfection is unacceptable

[0007] Based on the above situation, a variety of disassembly-free cleaning and disinfection equipment and methods have appeared on the market, but when these non-disassembly cleaning and disinfection equipment clean the wind wheel, dirty water will accumulate in the fan volute, and the dirty water is not easy to discharge. Slowly seeps into the plaster top or drips into the room through the return air vent

Dry steam cleaning and disinfection will not produce accumulated water, but its principle is to use low-pressure dry steam to blow away the dust attached to the fan coil. Sometimes it is sterilized by high temperature, but in essence, it does not metabolize away dust and bacteria, but only transfers them to the room or other places on the roof, which does not achieve the meaning of actual cleaning and disinfection

[0008] Therefore, in the existing method of cleaning and disinfecting without disassembling the equipment, due to the connection structure between the impeller and the coil, it is impossible for any gun head to completely clean and disinfect the coil, so it cannot be thoroughly cleaned and disinfected

Because it is invisible, the effect of cleaning and disinfection can only depend on manual operation, and the standardization is difficult to unify

When disassembling, cleaning and disinfecting, the bearings of the fan should be protected in time, and it is easy to get water, which will cause some bearings to rust after cleaning and produce abnormal noise

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