Anti-freezing fan coil assembly

A technology for fan coil units and components, which is applied in the field of HVAC systems, can solve problems such as freezing damage of coil units, slow water discharge, and stop, and achieve the effect of preventing coil units from freezing and cracking and facilitating recovery.

Inactive Publication Date: 2016-06-15
任春雷
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing common antifreeze fan coil unit only needs to change the coil structure and install a drain valve at the water inlet position, but the residual water in the coil cannot be completely drained, and there is still a risk of the coil being damaged by freezing
Because the HVAC chilled water system is a closed system, the existing antifreeze wind coil equipment has no air intake device, which causes the water discharge in the coil to be slow or stop, and it is impossible to achieve real antifreeze

Method used

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  • Anti-freezing fan coil assembly

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Embodiment Construction

[0022] The present invention will now be described based on specific examples. figure 1 A schematic diagram of an embodiment of a fan coil unit according to the present invention is shown.

[0023] in such as figure 1 In the illustrated embodiment, the fan coil unit includes three-way coil pipes 7, as best shown in the figure, which are respectively a-way coil pipes, b-way coil pipes and n-way coil pipes, here it should understand, despite the figure 1 The illustrated embodiment shows three-way coiled pipes, but any number of coiled pipes not less than one way is also applicable to the present invention, which needs to be determined according to actual conditions, and the present invention is not limited thereto; The fan coil unit also includes a water inlet device in fluid communication with each inlet of the above-mentioned three-way coil pipe (namely: a-way coil pipe, b-way coil pipe and n-way coil pipe), in other words, The three inlets of the a-way coil pipe, the b-way...

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Abstract

The invention provides an anti-freezing fan coil assembly. The anti-freezing fan coil assembly comprises at least one coil pipeline, a water inlet device and a water outlet device, wherein the water inlet device communicates with inlets of all the coil pipelines, and the water outlet device communicates with outlets of all the coil pipelines. The water inlet device is provided with a venting valve, and the water outlet device is provided with an air inlet valve. The venting valve and the air inlet valve are selectively and synchronously opened or closed along with the temperature of an external surface air cooler. According to the fan coil assembly, water in a coil can be automatically drained completely when the air temperature is low, and thus the fan coil can be protected against frost cracks under the condition that the fan coil is not in use in winter.

Description

technical field [0001] The invention relates to the field of heating and ventilation systems, and more specifically, to an antifreeze fan coil unit. Background technique [0002] Our country is in a stage of rapid development, and the vast majority of existing buildings use central air-conditioning systems. During the installation and use of the central air-conditioning system, the fan coil unit is the terminal product of the central air-conditioning system. It is composed of heat exchange coils, water pipes, filters, fans, water trays, exhaust valves, brackets, etc. The air in the room is continuously recirculated, so that the air is cooled (heated) after passing through the cold water (hot water) coil to keep the room temperature constant. Usually, the fresh air is sent into the room after being processed by the fresh air unit, so as to meet the needs of the fresh air volume of the air-conditioned room. [0003] Under normal circumstances, the heat medium in the heat exc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F1/00F24F11/02
CPCF24F1/0007F24F11/89
Inventor 任春雷
Owner 任春雷
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