Water coil pipe driving side air-suction top-out-air variable-air-quantity perpendicular upward air curtain

Abstract

The invention relates to a water coil pipe driving side air-suction top-out-air variable-air-quantity perpendicular upward air curtain. The perpendicular upward air curtain is used for preventing fresh air permeation and lowering the building heating / air conditioning load. In winter, horizontal side return air and perpendicular top blast are formed in front of an external window on the ground to smooth the indoor return air syphon circulation, thereby enhancing the room temperature uniformity; the circulating air quantity is increased to lower the blast / return air temperature difference; and the ground coldest return air is heated to lower the condensation temperature and enhance the heat pump heating quantity and energy efficiency. In summer, the ground coldest return air is cooled to lower the return air cooling load, and small air quantity forms the return air circulation to lower the air conditioner operating load, thereby unifying the heating and air conditioner high-efficiency tail end forms.

Description

(1) Technical field [0001] The invention relates to a vertically upward air curtain with variable air volume on the drive side of a water coil pipe and a wind suction top. (2) Background technology [0002] The existing heating and air conditioning terminals driven by various cold and hot water units mainly have the following product forms: [0003] 1. Buried pipe heating: Due to the heat storage and heat radiation through the floor, the condensation temperature can be reduced and the heat pump heating capacity and energy efficiency ratio can be improved; however, its disadvantages are as follows: (1) The material cost and installation cost of the buried pipe are relatively high; ( 2) The product must be assembled on site, and it is difficult to ensure the quality of the product when it is supplied in large quantities; (3) It is difficult to maintain the buried pipe; (4) In order to realize the air-conditioning function, it is necessary to add a fan coil unit to switch betwe...

AI Technical Summary

Problems solved by technology

[0003] 1. Buried pipe heating: Due to the heat storage and heat radiation through the floor, the condensation temperature can be reduced and the heat pump heating capacity and energy efficiency ratio can be improved; however, its disadvantages are as follows: (1) The material cost and installation cost of the buried pipe are relatively high; ( 2) The product must be assembled on site, and it is difficult to ensure the quality of the product when it is supplied in large quantities; (3) It is difficult to maintain the buried pipe; (4) In order to realize the air-conditioning function, it is necessary to add a fan coil unit to switch between the two terminals. On the one hand, it affects product reliability; on the other hand, the two terminals also increase product cost

[0004] 2. Fan coil unit: In order to realize the return air dehumidification of the air conditioner in summer, the indoor return air at 27°C is cooled to 15°C below the dew point by means of small air volume and large temperature difference; however, when it is used for heating in winter, it faces the following difficulties: ( 1) The temperature difference between the supply air and the return air corresponding to the small circulating air volume is relatively large, which leads to high condensation temperature, reduces the heating capacity and energy efficiency ratio of the heat pump, and is difficult to independently meet the heating application requirements in the severe cold regions of the north; (2) wall-mounted and ceiling embedded Type fan coil unit: Since the air is returned from the roof and the air is supplied from the upper part, the air is always circulated and heated in the upper part of the room after stratification; this increases the condensation temperature on the one hand and reduces the heating capacity and energy efficiency ratio of the heat pump; on the other hand The air temperature in the lower part is low, which reduces the heating effect; (3) Vertical cabinet fan coil unit: due to the return air in the lower part and the horizontal air supply in the middle part, the return air in the lower part is always circulated and heated to improve the heating effect

[0006] 4. Vertically downward cold air curtain for air conditioners: block the penetration of hot air and reduce the cooling load of building air conditioners; but because the air curtain is formed vertically downward, the effect of heating operation is not ideal

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