RU2056012C1 - Portable air conditioner - Google Patents

Abstract

FIELD: air conditioning. SUBSTANCE: fan and heat exchanging unit are placed in a case provided with air inlet and outlet. Carrying handle is provided on the case. A support and flow guide are placed in air outlet nozzle. Heat exchanging unit is made in the form of a packet of alternating plates with through air passages. Plates of one type are capillary-porous and their lower portion is placed in removable water tank. Plates of another type are made in the form of electric heaters of current conducting material coated with insulating layer and connected so to control their common heat power. Air inlet and outlet are placed in opposite case ends. Fan is installed in air inlet. The tank has a device for filling in water, and level indicator. Support design provides air conditioner fastening on the working place. Outlet air flow guides may adjust air amount and its direction in intersecting planes. EFFECT: small size. 6 cl, 3 dwg

Description

 The invention relates to air conditioning and can be used to process indoor air and supply it in close proximity to a person or to any devices and small objects, to which it is necessary and expedient to direct the flow of air processed in a portable air conditioner locally.

 The use of domestic air conditioners, the principle of operation of which is based on cooling the processed air by evaporation of water inside the air conditioner, is known in the air conditioning technique.

Known household evaporative air conditioning, in which the processed air is passed through a zigzag hygroscopic tape, moistened both in the lower and upper parts. As a result, the air is cooled and humidified [1]
However, this air conditioner is made stationary, has significant dimensions and weight, as well as limited air treatment capabilities, as it is not intended, for example, to heat the treated air.

Known household autonomous air conditioning, in which the outdoor air is supplied by the fan through a package of rotating nozzles, lowered the bottom into a water pan. Outside air passing through the wetted surfaces of the rotating nozzles is also cooled and moistened [2]
But this air conditioner is stationary, designed to handle outdoor air, has significant dimensions and is not intended for heating the processed air.

The domestic autonomous air conditioner has great potential, in which the outside air is passed through a mechanical filter, a drip-film cleaning chamber, and a chemical filter. This air conditioner uses a pneumatic pump for air supply, as well as electrodes for atmospheric oxygen from water [3]
Of course, this air conditioner is very complex, saturated with expensive equipment and, most importantly, bulky, non-transportable. This air conditioner does not solve the problem of heating the processed air, but uses a method of heating an aqueous solution and regulating its temperature, which cannot be acceptable in most cases.

 Famous household air conditioners, the principle of which is based on cooling the treated air by evaporation of the water, do not provide for the disinfection of the latter, which creates the prerequisites for the development of a bacterial environment in water and its transfer to the processed air.

 The closest to the purpose and therefore adopted as a prototype is a portable air conditioner, made with the possibility of transferring it by the handle and placing it near the object for which the room air is processed and supplied to it. This air conditioner contains a housing with inlet and outlet nozzles of both the main and auxiliary air flows, fans and processing units of the room air flows located in the housing. One processing unit is designed to cool the flow of air directed to the object (consumer), and the other to transfer heat from the air sent to the consumer to the air, which is auxiliary. For this purpose, refrigeration and compressor equipment with a closed refrigerant refrigerant circuit containing an evaporator, a condenser and a throttling device is used. At the bottom of the portable air conditioner there is a container for water condensed from the processed air, as well as a stand on which the air conditioner is installed close to the object [4] A characteristic feature of this air conditioner is that it contains complex expensive refrigeration and compressor equipment, two fans that create near the workplace (facility), high noise levels and consuming significant electrical energy in the aggregate, which ultimately leads to a general increase in temperature indoor air, reducing its relative humidity. In addition, the use of a compressor creates an environmental hazard associated with the use of freon as a refrigerant.

 Given the current level of development of technology and the level of technology for the manufacture of household air conditioners, the technical task was set to create an economical, environmentally friendly low noise, portable, portable air conditioner that could be located in the immediate vicinity of the cooling facility and which would not contain a complex refrigeration compressor equipment and could process the air to be cooled, heated, moistened, and also cleaned of dust, disinfected and odorized.

 The essence of the invention according to the application lies in the fact that the portable air conditioner comprises a housing with inlet and outlet pipes for the processed air from the room, an electric fan and a heat exchange unit located in the housing, as well as a removable water tank, a transfer handle mounted on the housing, an air conditioning stand and guides of the air stream leaving the air conditioner located in the outlet pipe.

 The heat exchange unit is made in the form of a package of alternating plates with through channels for air, moreover, some plates are made capillary-porous and the lower part is lowered into a water tank, and others in the form of electric heating elements made of a conductive material coated with an insulating layer and commutated with the possibility of regulation their total heat output.

 Air inlet and outlet pipes are located at opposite ends of the housing, the electric fan is installed in the air inlet pipe, the tank contains a water refueling device and an indicator of its level, the stand is made with the possibility of fixing the air conditioner in the workplace, for example, with suction cups on the desk, and the guides coming out of the air conditioner The treated air flow has the ability to direct it in intersecting planes.

 Capillary-porous plates can be made of hydrophobic material with hydrophilized surfaces. The use of this design provides the supply of moisture to the zone of its evaporation only due to the effect of wetting the surface and the transport properties of the porous material without the use of mechanical water supply systems. It is possible to place the water filling device in the tank on the side, as well as to fill the tank with water from an additional bath located in the upper part of the housing. Refueling is carried out by the consumer when it is necessary to obtain chilled and humidified air. A sensor is used to monitor the water level in the bath. The ability to remove the water tank allows you to update the composition of the water during long-term operation of the air conditioner, wash porous plates that also serve as filters for the supplied air, and add flavoring and / or disinfecting additives to the water (for example, LiCl or LiBr salts with bactericidal action) .

 To reduce the noise level generated by the fan, the air conditioner enclosure may contain sound-absorbing insulation. The heat exchange unit with porous plates also performs the function of absorbing noise from the supplied air.

 In FIG. 1 shows a general view of a portable air conditioner; figure 2 section aa in figure 1; figure 3 view along arrow B in figure 1.

 The portable air conditioner comprises a housing 1, a pipe 2 for entering the air stream, a pipe 3 for exiting the air stream, an electric fan 4, a heat exchange unit 5, a removable water tank 6, a handle 7 for transferring the air conditioner, a stand 8, guides 9 of the exhaust air stream, a package of alternating plates 10 , through channels 11 for the passage of air, capillary-porous plates 12, plates 13, made in the form of electric heating elements from a conductive material coated with an insulating layer, an additional bath 14 for refueling with water is removable oh 6, the device 15 refueling, placed on the side of the tank 6, the device 16 refueling water additional bath 14, the indicator 17 of the water level in the tank 6.

 Portable air conditioning works as follows.

 The air from the room is taken by the electric fan 4 through the pipe 2 of the air inlet and is supplied to the heat exchange unit 5. Air treatment in the heat exchange unit 5 is carried out using heat and mass transfer processes in the through channels 11.

 Water from the removable container 6 enters the capillary-porous plates 12. In the through channels 11, moisture from the surface of the capillary-porous plates 12 evaporates, resulting in simultaneous cooling and humidification of the air passing through the through channels 11. Along the way, the air is cleaned from dust for due to the adhesion of the latter to the wet surfaces of the through channels 11 of the capillary-porous plates 12, as well as, if necessary, disinfection and / or odorization of the air. Disinfection and / or odorization is performed provided that the water in the container 6 is saturated with disinfecting and / or flavoring agents.

 It is also possible to treat the air in the through channels, not only due to the process of evaporative cooling, but also due to its simultaneous heating by electric heating plates 13, the total thermal power of which can be controlled, for example, by introducing additional resistances and / or by changing the electrical circuit of the switching of electric heating plates 13 .

 Simultaneous processing of air in the heat exchange unit 5, using the processes of evaporative cooling and heating of air in the through channels 11, makes it possible to more deeply change the heat and moisture content. If necessary, a portable air conditioner can work only as an air heater. In this case, voltage is applied to the electric heating plates 12, and the removable container 6 is not filled with water. The air passing through the through channels 11 is heated to the desired temperature by electric heating plates 13.

 After processing the air in the heat and mass transfer unit 5, it enters the outlet pipe of the air stream 3 and then the flow guides 9 are fed directly to the object for which the portable air conditioner is intended. Moreover, a portable air conditioner is installed and fixed near the object, for example, suction cups stand 8 on the desk of a working person. The exhaust air guides 9 can control the air flow 4, supply it in various intersecting planes without changing the position of the portable air conditioner. Of course, a portable air conditioner is able to work in the fan-only mode for any object.

 The use of the portable air conditioner according to the invention expands the possibilities of using air conditioners and gives in many cases a significant reduction in the cost of air conditioning by maintaining the temperature and humidity conditions not in the entire volume of the room, but directly in the area of the object. It is also locally possible to maintain clean air, its bactericidal characteristics and the saturation of various odors.

 Moreover, the operation mode of the air conditioner does not depend on the temperature and humidity conditions of the outdoor air, but depends only on the air condition of the room, which is taken by the electric fan 4 through the pipe 2 of the air flow inlet.

Claims (6)

 1. PORTABLE AIR CONDITIONER, comprising a housing with inlet and outlet pipes for the treated air from the room, a fan and a heat exchange unit located in the housing, as well as a removable water tank, a transfer handle mounted on the housing, a stand and flow guides located in the outlet pipe, characterized in that the heat exchange unit is made in the form of a package of alternating plates with through channels for air, moreover, some plates are made capillary-porous and the lower part is lowered into the water tank, and the others into the idea of electric heating elements made of a conductive material coated with an insulating layer and commutated with the possibility of regulating their total thermal power, while the air inlet and outlet pipes are located at opposite ends of the casing, the fan is installed in the air inlet pipe, the tank contains a water filling device and an indicator its level, the stand is made with the possibility of fixing the air conditioner in the workplace, for example on a desk, and the guides of the outgoing stream with the possibility of cursing the amount of air and its direction in intersecting planes.  2. The air conditioner according to claim 1, characterized in that the capillary-porous plates are made of hydrophobic material with hydrophilized surfaces.  3. The air conditioner according to claims 1 and 2, characterized in that the device for filling the tank with water is located on the side of the latter.  4. The air conditioner according to claims 1 and 2, characterized in that the device for filling the tank with water further comprises a bath connected with it, located in the upper part of the housing.  5. Air conditioning according to any one of claims 1 to 4, characterized in that the housing is equipped with sound-absorbing insulation.  6. Air conditioning according to any one of claims 1 to 5, characterized in that the water in the container is saturated with flavoring agents.

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