CN1321862A - Heat regeneration horizontal thermotube air-conditioning air-breather equipment - Google Patents

Abstract

The regenerative horizontal thermotubes air-conditioner air-changing device mainly is comprised of horizontal thermotube, coaxial two-wing fanning machine and new air filtering layer, the horizontal thermotube, coaxial two-wing fanning machine and crossflow fan and centrifugal fan which are positioned at two sides of the coaxial two-wing fanning machine are separated in the air intake heat-exchange chamber and exhaust heat-exchange chamber which are isolated each other by means of partioning board, the crossflow fan can draught air from air intake heat-exchange chamber, and the centrifugal fan can below air into exhaust heat-exchange chamber, so that the air at left and right two-sides of thermotube can produce reverse flow. The baffle plate can increase heat exchange coefficient outside thermotube, and said new air filtering layer can be used for removing duct in the air. Its structure is compact and heat-exchange effect is good.

Description

Heat recovery type horizontal heat pipe air conditioning and ventilation device

The invention relates to an air conditioner ventilation device, in particular to a heat recovery type horizontal heat pipe air conditioner ventilation device, which can recover energy from the exhaust air of an air conditioning room by using the horizontal heat pipe, and belongs to the technical field of ventilation equipment.

When the air conditioner is running, it usually heats or cools the air in a closed space, and the air quality will be greatly reduced over time. Usually, centralized air conditioners are equipped with special ventilation equipment, and heat exchange is performed on exhaust air and intake air during ventilation, so as to achieve the purpose of ventilation and energy saving. And most of the unitary air conditioners in the prior art improve the air quality only by directly introducing a part of outdoor air and directly discharging a part of indoor air, which will increase the load of the air conditioner. In the "heat pipe type total heat exchange air conditioner" (CN87202930U), the heat exchanger uses heat pipes, the heat exchanger partitions use moisture-permeable materials, and the wind drive uses a motor with two axial flow fan blades. Turn to change the intake and exhaust modes. The product announced in "Household Heat Balance Ventilator" (CN1122897A) also has the functions of ventilation and energy saving. 1. Several heat pipes are installed in a staggered manner, and then the indoor and outdoor air entering and leaving the device is exchanged with the heat pipes for heat balance and ventilation by means of the air supply and exhaust of the fan. The fan duct (wind box) of the former is complicated, and the volume of the whole device is relatively large, and the air intake and exhaust mode must be changed by changing the direction of the motor in winter and summer, and its operating efficiency will be reduced; the latter must be used in winter and summer. An additional mechanism enables the direction of the intake and exhaust to be reversed, because the gravity heat pipe needs to place the hot air on its lower section and the cold air on its upper section. The heat exchanger introduced in "Energy-saving Horizontal Heat Pipe Air-Conditioning Ventilator" (ZL98224362.6) uses horizontal heat pipes, and the ventilation uses coaxial double-wing cross-flow fans, which solves the above problems, but the efficiency of the blowing performance is not high .

The object of the present invention is to address the above-mentioned shortcomings of the prior art, and provide a new-type heat recovery type horizontal heat pipe air-conditioning and ventilation device, which has the advantages of compact structure, small volume, and good energy-saving effect.

In order to achieve this purpose, in the technical solution of the present invention, the designed heat recovery type horizontal heat pipe air conditioning and ventilation device is composed of a horizontal heat pipe, a coaxial double-wing fan, a fresh air filter layer, a baffle plate, and an air intake and exhaust duct. The heat pipe is placed horizontally, and there are fins outside the heat pipe. The partition divides the inner chamber of the device into two left and right chambers that are not communicated with each other and are isolated from each other, which are respectively the intake heat exchange chamber and the exhaust heat exchange chamber. The horizontal heat pipe, the coaxial double-wing fan and the cross-flow fan and centrifugal fan connected on both sides are separated in the intake and exhaust heat exchange chamber by a partition. The coaxial double-wing fan is placed horizontally, and the impellers on both sides correspond to the left and right sides of the heat pipe respectively. By rationally designing the fan volute, one side of the cross-flow fan draws air from the inlet and exhaust heat exchange chambers, and the other side of the centrifugal fan Air is blown in the inlet and outlet heat exchange chambers, so that the air on the left and right sides of the heat pipe flows in reverse. One end of the air inlet and exhaust duct is connected to the inlet and exhaust heat exchange chambers, and the other end is connected to the outside. It is used to discharge or introduce the indoor exhaust air and outdoor fresh air passing through the fan. The fresh air filter layer is placed at the entrance of the fresh air for filtering. Fresh air of dust. The air inlet and exhaust ducts and the coaxial double-wing fan can also be connected on both sides of the heat pipe, that is, the outdoor fresh air enters the room and passes through the air inlet and exhaust ducts, the fresh air filter layer, the heat pipe, and the fan in turn, while the exhaust air is discharged to the outside through the fans, heat pipes, etc. , fresh air filter layer, intake and exhaust ducts. The baffles are fixed on the shell and placed parallel to the heat pipes. They can be arranged in a staggered rectangle or streamlined symmetrically. The baffles can increase the flow rate of the air passing through the heat pipes and the heat transfer coefficient between the air and the heat pipes.

There can be one or more horizontal heat pipes of the present invention. The whole device such as the heat pipe and the coaxial double-wing fan can be placed indoors and connected to the outside through the air intake and exhaust ducts, or the whole device can be placed outdoors and connected to the room through the air intake and exhaust ducts.

The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is a structural schematic diagram of the present invention.

As shown in the figure, the present invention is composed of a horizontal heat pipe 1, a coaxial double-wing cross-flow fan 2, a fresh air filter layer 3, a casing 4, a partition 5, and a baffle 7. The horizontal heat pipe 1 is placed horizontally, and outside the horizontal heat pipe 1 there are multiple The fins, the separator 5 and the shell 4 divide the inner cavity into two left and right cavities that are not communicated with each other and are isolated from each other, one of which is the intake heat exchange chamber 8, and the other cavity is the exhaust heat exchange chamber 9 , the horizontal heat pipe 1 passes through the partition 5, one end is in the intake heat exchange chamber 8, the other end is in the exhaust heat exchange chamber 9, the coaxial double-wing fan 2 also passes through the partition 5, and the cross flow fan 10 connected at one end is in the Intake heat exchange chamber 8, and the centrifugal fan 6 connected to the other end is in exhaust heat exchange chamber 9. The coaxial double-wing fan 2 is placed horizontally, at the interface of the same plane air duct, one side enters the air, and the other side exhausts the air, the wind direction is opposite, and the impellers on both sides correspond to the left and right sides of the heat pipe respectively. In operation, the centrifugal fan 6 operates in a blowing mode, so that the intake and exhaust in the heat exchange chamber 8 and the exhaust heat exchange chamber 9 on the left and right sides of the heat pipe flow in reverse. The fresh air filter layer 3 is placed at the fresh air inlet of the intake heat exchange chamber 8 for filtering dust in the fresh air. A baffle 7 parallel to the position of the horizontal heat pipe 1 is fixed on the casing 4 .

Fig. 2 is a structural schematic diagram of an embodiment of the present invention with air intake and exhaust ducts.

As shown in the figure, the air inlet heat exchange chamber 8 and the exhaust heat exchange chamber 9 of the present invention are connected together with the air inlet and exhaust ducts 11, and the other end of the air inlet and exhaust air ducts communicates with the outside for exhausting the indoor air through the fan. Exhaust outside or introduce outdoor fresh air into the room.

Fig. 3 is a schematic diagram of the layout of the baffles in the present invention.

As shown in the figure, the baffles 7 fixed on the casing 4 are parallel to the horizontal heat pipe 1 and arranged in a staggered rectangle.

Fig. 4 is a schematic diagram of another arrangement of baffles in the present invention.

As shown in the figure, the baffles 7 fixed on the casing 4 are parallel to the horizontal heat pipe 1 and arranged symmetrically in a streamlined manner.

The invention is a ventilation and ventilation device used in conjunction with a unit type air conditioner, which performs heat exchange for exhaust air and air intake during ventilation, and has the functions of ventilation and energy saving. The fan adopts a coaxial double-wing fan, and the direction of the airflow does not change when it flows into and out of the fan, so it is small in size and compact in structure. The heat exchanger adopts a horizontal heat pipe, which has good heat exchange effect and lower cost than stacked or plate heat exchangers. The purpose of changing the direction of cold air or hot air can be achieved without changing the direction of the fan, and there is no problem of changing the direction of the air intake and exhaust in winter and summer, which is required by the gravity heat pipe heat exchanger. Because the baffles are installed in the present invention, when the airflow flows through the heat exchange chamber with heat pipes, the baffles can strengthen the heat transfer coefficient outside the heat pipes, and 50% to 70% of the heat can be recovered from the exhaust air during ventilation. Sensible cooling or sensible heat, thereby reducing the load of the air conditioner. In addition, the present invention only needs to embed the air intake and exhaust passages in the wall or in the window to lead out to the outside, so the installation is more convenient.

Claims (5)

1, plant heat regeneration horizontal thermotube air-conditioning air-breather equipment, by Horizontal heat pipe (1), coaxial double-vane ventilation blower (2), shell (4) and dividing plate compositions such as (5), it is characterized in that dividing plate (5) and shell (4) are divided into isolated each other air inlet Heat Room (8) and exhaust gas heat exchanging chamber (9) with its inner chamber, Horizontal heat pipe (1) passes dividing plate (5), one end is in air inlet Heat Room (8), the other end is in exhaust gas heat exchanging chamber (9), coaxial double-vane ventilation blower (2) also passes dividing plate (5), the crossflow fan (10) that the one end connects is in air inlet Heat Room (8), the centrifugal blower (6) that the other end connects has fin in exhaust gas heat exchanging chamber (9) outside the Horizontal heat pipe (1).

2,, it is characterized in that being fixed with on the shell (4) deflection plate (7) parallel with Horizontal heat pipe (1) position as the said heat regeneration horizontal thermotube air-conditioning air-breather equipment of claim 1.

3, heat regeneration horizontal thermotube air-conditioning air-breather equipment as claimed in claim 1 is characterized in that air inlet Heat Room (8) porch is equipped with new wind filter course (3).

4, heat regeneration horizontal thermotube air-conditioning air-breather equipment as claimed in claim 1 is characterized in that air inlet Heat Room (8) and exhaust gas heat exchanging chamber (9) and air inlet and out let (11) link together.

5,, it is characterized in that deflection plate (7) is staggered rectangular arrangement or streamlined symmetric arrangement as the said heat regeneration horizontal thermotube air-conditioning air-breather equipment of claim 2.

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