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Coil pipe of 4-pipe blower

A fan coil unit and four-pipe technology, applied in space heating and ventilation, household heating, lighting and heating equipment, etc., can solve the problems of lower cooling and heating efficiency, large volume and weight, and increased wind resistance, etc., to achieve The effect of simplifying structure, reducing volume and reducing resistance

Inactive Publication Date: 2008-06-11
张跃
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The two coils are installed in the body, which is large in size and weight, high in cost, and increases the resistance of the wind, reducing the cooling and heating efficiency

Method used

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  • Coil pipe of 4-pipe blower

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Embodiment Construction

[0008] Referring to Figure 1, this four-pipe fan coil unit only installs one coil 1 in the body, and there are three-way valves F1 and F2 for cooling and heat conversion installed between the coil 1 and the external air-conditioning water pipes, and the external air-conditioning water pipes are chilled water respectively. Out 2, chilled water in 3, warm water in 4, warm water out 5. There can be one or two three-way valves for cooling and heating conversion. When the user requires cooling, the electric valve F1 acts: B→C is connected, the electric valve F2 acts: C→B is connected, the chilled water enters 3 to the chilled water exits 2, and the chilled water flows in the coil; when the user requires heating , the electric valve F1 acts: A → C is connected, the electric valve F2 acts: C → A is connected, warm water enters 4 to warm water exits 5, and warm water flows in the coil, thereby realizing the cooling and heating conversion of the fan coil. It is also possible to instal...

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PUM

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Abstract

A four pipe FCU is provided, which is characterized in that: only one coil is mounted in a machine body; a cold-hot exchanging three way valve is connected and positioned between the coil and an external air conditioner water pipe. The invention skillfully utilizes the cold-hot exchanging three way valve to facilitate one coil being used in two ways, namely being served both as a cooling coil and the heating coil, thereby largely simplifying the structure, lowering the cost, shortening the volume, minishing the resistance and improving the cooling and heating efficiency.

Description

Technical field: [0001] The invention relates to an air conditioner terminal device, in particular to a four-pipe fan coil unit. Background technique: [0002] The end of the traditional air conditioner is composed of a fan and two independent coils. The two coils are respectively connected to the cold water pipe and the warm water pipe output by the air conditioner main unit, and realize the cooling or heating function according to the user's requirements. The two coils are installed in the body, which has large volume and weight, high cost, and increases wind resistance, reducing cooling and heating efficiency. Invention content: [0003] The technical problem to be solved by the present invention is to solve the above-mentioned problems in the prior art, and provide a four-pipe fan coil unit with simple structure, small volume, low cost, reduced wind resistance, and improved cooling and heating efficiency. [0004] The technical solution adopted by the present inventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F1/00
Inventor 张跃
Owner 张跃