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Fault judging method of bypass air valve of fresh air heat recovering device and heat recovery device

A fresh air heat recovery and fault judgment technology, which is applied in space heating and ventilation, space heating and ventilation control input, heating mode, etc., can solve the problem of inability to judge whether the bypass ventilation valve is invalid or not

Inactive Publication Date: 2019-01-15
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for judging the failure of the bypass ventilation valve of the fresh air heat recovery device and a heat recovery device for the defect that the bypass ventilation valve cannot be judged in the prior art, so that the failure of the bypass ventilation valve can be obtained. effective monitoring

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  • Fault judging method of bypass air valve of fresh air heat recovering device and heat recovery device
  • Fault judging method of bypass air valve of fresh air heat recovering device and heat recovery device
  • Fault judging method of bypass air valve of fresh air heat recovering device and heat recovery device

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Embodiment Construction

[0049] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0050] The present invention proposes a fault judgment method for the bypass ventilation valve of the fresh air heat recovery device, referring to Figure 3-5 As shown, the fresh air heat recovery device is provided with a gas channel, the gas channel passes through the heat exchange core, and the gas channel is also provided with a bypass channel, which can bypass the shown heat exchange core to avoid heat generation between the gas and the heat exchange core. In exchange, a bypass air valve is provided between the bypass channel and the gas channel to control opening or closing of the bypass channel. The bypass ventilation valve includes: a damper 31, a stepping motor 32 and a base 33. If the stepping motor 32 fails, the bypass ventilation valve cannot work normally.

[0051] Such as figure 1 As shown, the fault diagnosis method of the bypass air va...

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Abstract

The invention discloses a fault judging method of a bypass air valve of a fresh air heat recovering device and the heat recovery device. The method includes the steps of obtaining a gas parameter D1 of the air inlet side of a heat exchange core in a gas passage in the heat exchange mode, and acquiring a gas parameter D2 on the air outlet side of the heat exchange core in the gas passage; acquiringa gas parameter D3 of the air outlet side of the heat exchange core in a bypass mode; and judging the fault state of the bypass air valve according to the difference value among the gas parameter D1,the gas parameter D2 and the gas parameter D3. By means of the fault judging method and the heat recovery device, monitoring of the bypass air valve is achieved.

Description

technical field [0001] The invention relates to the technical field of electrical appliances, in particular to a fault judgment method for a ventilation valve bypassing a fresh air heat recovery device and a heat recovery device. Background technique [0002] The fresh air heat recovery device is generally equipped with a fresh air channel, an exhaust air channel, and a heat recovery core. The fresh air channel and the exhaust air channel are completely independent for ventilation. On the fresh air side, the fresh air channel is connected to the fresh air side of the heat recovery core. Indoor air and outdoor air exchange energy in the heat recovery core to recover the energy in the exhaust air, reduce indoor energy emissions, and reduce air conditioning energy consumption caused by fresh air replacement, which is the heat recovery function of the unit. [0003] At present, the air passages of some fresh air heat recovery devices on the market are equipped with bypass passa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/38F24F11/64F24F11/72F24F110/10F24F110/20
CPCF24F11/38F24F11/64F24F11/72F24F2110/10F24F2110/20
Inventor 詹朝永余凯黎磊杨力陈文辉陈俊伟
Owner GREE ELECTRIC APPLIANCES INC