JPS599436A - Air-cooled heat pump type air-conditioner - Google Patents

Abstract

PURPOSE:To increase heat exchanging efficiency by a method wherein the air speed distribution of an air heat exchanger is improved. CONSTITUTION:The plate type air heat exchanger is provided at both sides of the air-cooled heat pump type air-conditioner 1 while holding frames 10, 10a, at the inside of the heat exchanger are provided with air guide plates 11 so as to be slanted upwardly toward a fan. In said constitution, air is induced into the air heat exchangers 5, 6 of both sides by operating the fan 7 while the air, passed through the air heat exchangers, is flowed upwardly along the whole surface of the inside of the air heat exchangers 5, 6 so as to be rectified by respective air guide plates 9, 11. Accordingly, a difference between heat exchanging amounts of the upper and lower parts of the heat exchanger is reduced, the circulation of the air in the heat exchanger is eliminated, the amount of ventilation is increased and the heat exchanging efficiency may be increased.

Description

[Detailed Description of the Invention] The present invention relates to a medium-sized or large-sized air-cooled and one-pump type air conditioner, and an object of the present invention is to improve heat exchange efficiency by improving the wind speed distribution of an air heat exchanger. .

Conventionally, the air heat exchangers in medium- or large-sized air-cooled heat pump air conditioners are installed vertically in parallel on both sides of the frame, and a blower for air heat exchange is installed on the top. , there are two airflow channels as the air is sucked in from both sides through the air heat exchanger and blown out to the top side. The flow velocity distribution when air is sucked in the vicinity of the blower, that is, above and below the air heat exchanger, is different, resulting in poor heat exchange efficiency. Due to the relationship between the heat exchangers, some air circulation occurs in the space within the frame, resulting in a reduction in air flow. The present invention solves the above-mentioned conventional drawbacks. One embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

In the figure, 1 is a medium or large air-cooled heat pump type air conditioner, 2 is the bottom, and 3 is a machine room. This machine room contains a compressor, a four-way valve, an expansion valve, a liquid receiver, a hot and cold water device (
It houses the main equipment such as the user-side heat exchanger), accumulator, etc. (none of which are shown). 4 is a catch cover for the machine room 3, O5 is provided on one side for waterproofing rainwater etc. from above, 6 is on the other side, P3 is provided on both sides, - Note-shaped air heat The exchanger, 7, is installed on the top side.The air blowers 8, 8a for heat exchange are located immediately inside the air heat exchanger 5, and are installed upright at both ends of the air heat exchanger 6 in the longitudinal direction. The holding frame 9 is for the air heat exchanger 5,
A plurality of air guide plates 9 are provided at an angle upward on the blower side.
It is fixed by welding etc. On the other hand, air heat exchanger 6
Also on the side, an air guide plate 11 is provided on the holding frames 10 1 and 10 a so as to be inclined upward toward the blower side.

In the above configuration, by operating the blower 7,
The air is sucked into the air heat exchangers 5 and 6 on both sides, and the air that has passed through the air heat exchangers is passed through the respective air guide plates 9.
, 11, the air flows upward so as to be rectified over the entire inside of the air heat exchangers 5, 6.

In this way, the present invention provides the air guide plate inwardly of the air heat exchanger provided on both sides, slanting upward toward the blower side, so that the air flow velocity is rectified and the air guide plate is provided above the air heat exchanger. This reduces the difference in the amount of heat exchange between the inside and the bottom, eliminates internal air circulation, increases the amount of air blown, and improves heat exchange efficiency.

Furthermore, the noise generated by the blower is also reduced because the wind speed distribution is rectified. Furthermore, even when there is a natural wind speed from one direction, the air guide plate does not obstruct the natural wind speed and reduce the heat exchange of the heat exchanger, which has a practical effect.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a large air-cooled heat pump type air conditioner according to the present invention provided with an air guide plate, and FIG. 2 is a schematic plan view of the same. 3... Machine room, 6... Air heat exchanger,
7...Blower, 9...Air guide plate.

Claims (1)

[Claims] A machine room equipped with a compressor, a four-way valve, a user-side heat exchanger, an accumulator, etc., an air heat exchanger placed on both sides of this machine room, and a blower for air heat exchange placed above. An air-cooled heat pump type air conditioner comprising an air guide plate inclined upwardly inside the air heat exchanger.