CN202494182U - Heat recovery air handling unit - Google Patents

Abstract

A heat recovery air handling unit, which relates to a central air-conditioning fresh air handling unit. A vertical heat exchanger is installed in the shell of the unit. One side of the heat exchanger is respectively provided with a blower fan and an exhaust fan. The other side of the heat exchanger is A dirty air intake chamber and a fresh air intake chamber are respectively provided, and a baffle is arranged inside the housing, and the baffle is connected to the heat exchanger to separate the blower, the exhaust fan, the dirty air intake chamber and the fresh air intake chamber, and the blower , Exhaust fan, sewage air intake chamber and fresh air intake chamber are respectively provided with ventilation openings on the side corresponding to the heat exchanger, the housing corresponding to the sewage air intake chamber is provided with a sewage air inlet, and the fresh air intake chamber The corresponding housing is provided with a fresh air inlet, the housing corresponding to the blower is provided with a fresh air outlet, and the housing corresponding to the exhaust fan is provided with a dirty air outlet. The utility model has the advantages of low equipment investment cost, high heat exchange efficiency and low operating noise.

Description

Heat Recovery Air Handling Units

technical field

The utility model relates to a fresh air processing unit of a central air conditioner.

Background technique

The heat recovery air handling unit belongs to the fresh air treatment equipment at the end of the central air conditioner. Its main function is to exchange heat between the outdoor fresh air and the dirty air in the room before entering the room, and use the energy of the exhaust air to save the pretreatment of the fresh air. In summer, the fresh air can be obtained The cooling and dehumidification treatment can make the fresh air get warming and humidifying treatment in winter, so as to recover energy. It is a healthy and environmentally friendly product, which is widely used in air-conditioned places such as shopping malls, hotels, hospitals, theaters, and office buildings.

The existing heat recovery air handling unit is mainly composed of a blower, an exhaust fan, a heat exchanger, a filter and a shell, and there are the following structural problems: ①The heat exchanger is a horizontal heat exchanger, installed on the blower and exhaust fan In between, not only the equipment assembly is inconvenient, but also takes up a large space inside the unit, which makes the unit larger in size, higher in material cost, and increases the initial investment of the equipment; It is cumbersome, and the internal resistance of the unit is relatively large, resulting in a large input power of the motor and high noise during equipment operation, which reduces the heat exchange efficiency of the equipment and increases the noise pollution of the equipment operating environment.

Contents of the invention

The utility model aims at the deficiencies of the prior art, and provides a heat recovery air processing unit with low equipment investment cost, high heat exchange efficiency and low operating noise.

The utility model is mainly composed of a blower fan, an exhaust fan, a heat exchanger, a filter and a casing. The technical solution adopted to solve the technical problem is that a vertical heat exchanger is installed in the casing, and a blower fan is respectively arranged on one side of the heat exchanger. and the exhaust fan, the other side of the heat exchanger is respectively provided with a dirty air inlet chamber and a fresh air inlet chamber, and a partition is arranged inside the shell, and the partition is connected with the heat exchanger to connect the supply fan, exhaust fan, dirty air inlet chamber and The fresh air intake chamber is separated, and ventilation ports are respectively set on the side corresponding to the heat exchanger of the blower fan, exhaust fan, dirty air intake chamber and fresh air intake chamber; the housing corresponding to the dirty air intake chamber is provided with Sewage air inlet and fresh air inlet are arranged on the shell corresponding to the fresh air intake chamber, fresh air outlet is set on the shell corresponding to the blower, and dirty air outlet is set on the shell corresponding to the exhaust fan.

The above-mentioned dirty air intake chamber and the fresh air intake chamber are respectively provided with medium-efficiency filters.

The positive effect of the utility model is:

The vertical heat exchanger is adopted, and the blower and exhaust fan are installed on the same side of the heat exchanger, so that the overall size of the unit is reduced by about 20%, and the overall cost of the unit is greatly reduced, thereby greatly reducing equipment investment costs and enhancing market competition. At the same time, the internal space of the unit is increased, so that multi-stage filtration can be designed to improve the air purification effect.

There is no need to open holes on the partition, which simplifies the structure of the internal partition. The partition is used to separate the two airflows of the supply air and the exhaust air, so that the new exhaust air can fully and evenly exchange heat, improve the heat exchange efficiency and reduce the internal resistance , reduce the motor input power, so as to achieve the purpose of energy saving.

Low investment and high benefit can reduce equipment investment and construction area, use heat recovery technology to save energy and reduce consumption, and greatly reduce equipment and system operating costs.

The power of the motor is reduced, the noise of the equipment is lower, and the environmental noise pollution is reduced.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Among them, 1 blower, 2 exhaust fan, 3 heat exchanger, 4 clapboard, 5 primary filter, 6 intermediate filter, 7 shell, 8 dirty air intake chamber, 9 fresh air intake chamber, 10 sewage air inlet , 11 fresh air inlet, 12 fresh air outlet, 13 dirty air outlet, 14 vents.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

As shown in the figure, a vertical heat exchanger 3 is installed in the casing 7, a blower 1 and an exhaust fan 2 are arranged on one side of the heat exchanger 3, and a dirty air inlet chamber 8 is arranged on the other side of the heat exchanger 3 With the fresh air inlet chamber 9, the housing 7 is provided with a partition 4, and the partition 4 is connected to the heat exchanger 3 to separate the blower 1, the exhaust fan 2, the dirty air inlet chamber 8 and the fresh air inlet chamber 9, Air blower 1, exhaust fan 2, dirty air inlet chamber 8 and fresh air inlet chamber 9 are respectively provided with vents 14 on the side corresponding to heat exchanger 3, and sewage is arranged on the corresponding housing 7 of dirty air inlet chamber 8. The air inlet 10, the fresh air inlet 11 is arranged on the housing 7 corresponding to the fresh air inlet chamber 9, the fresh air outlet 12 is arranged on the housing 7 corresponding to the blower 1, and the dirty air outlet is arranged on the housing 7 corresponding to the exhaust fan 2 10.

The above-mentioned dirty air inlet 10 and fresh air inlet 11 are respectively provided with primary effect filters 5 .

The above-mentioned dirty air intake chamber 8 and fresh air intake chamber 9 are provided with medium-efficiency filters 6 respectively.

When working, the dirty air enters the dirty air intake chamber 8 through the primary effect filter 5 from the dirty air inlet 10, and then is processed by the medium effect filter 6, and enters the heat exchanger 3 through the vent 14; The high-efficiency filter 5 enters the fresh air intake chamber 9, and then is processed by the medium-efficiency filter 6, and then enters the heat exchanger 3 through the vent 14, and after exchanging heat with the dirty air in the heat exchanger 3, it is sent to the room by the blower 1 , after the heat exchange between the polluted air and the fresh air, it is discharged to the outside by the exhaust fan 2.

Claims (2)

1. recuperation of heat air-treatment unit; Mainly be made up of pressure fan, exhaust blower, heat exchanger, filter and housing, it is characterized in that vertical heat exchanger is installed in the housing, a side of heat exchanger is provided with pressure fan and exhaust blower respectively; The opposite side of heat exchanger is provided with dirty wind inlet plenum and new wind inlet plenum respectively; Enclosure interior is provided with dividing plate, and dividing plate links to each other with heat exchanger pressure fan, exhaust blower, dirty wind inlet plenum and new wind inlet plenum are separated, and pressure fan, exhaust blower, dirty wind inlet plenum and new wind inlet plenum and the corresponding side of heat exchanger are provided with ventilating opening respectively; On the corresponding housing of dirty wind inlet plenum dirty wind inlet is set; The new corresponding housing of wind inlet plenum is provided with fresh inlet, and new wind outlet is set on the corresponding housing of pressure fan, and dirty wind outlet is set on the corresponding housing of exhaust blower.

2. recuperation of heat air-treatment unit according to claim 1 is characterized in that dirty wind inlet plenum and new wind inlet plenum are provided with medium effeciency filter respectively.

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