JPS58224240A - Air conditioner - Google Patents

Abstract

PURPOSE:To provide an air conditioner characterized with an increased dust collecting rate, a saved installation space and a reduced pressure loss, by arranging such that the fin of heat exchanger is utilized as the opposing earth electrode of discharge cable for spraying a water over the fin above the heat exchanger, and a water supply tube is provided for flowing down a dust collected therethrough. CONSTITUTION:A heat exchanger 4 is constituted by a heat exchanging tube 4c for passing a cooling medium therethrough and a multiple of fins 4d secured to the heat exchanger. While an air is introduced to the heat exchanger 4 by a fan 3, a drain pan is provided for receiving a drain from the heat exchanger 4. Moreover, while the fin 4d is formed as an opposing earth electrode and a discharge cable 5 forming an ionization section and a dust collecting zone between it and the fin 4d is arranged in opposition against the fin 4d, a water is sprayed over the fine 4d and a water supply tube 9 is provided at the upper portion of heat exchanger 4 for flowing down dusts collected by the fin. As a result, it is available to use an air conditioner which is simple in construction, provide an increased dust collecting rate and a reduced pressure loss and requires less installation space. Besides, the air conditioner needs not to clean and replace a filter.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air conditioner, particularly an air conditioner equipped with an electric dust removal device.

Conventionally, a filter made of non-woven fabric or the like has been used as a super-removal device in a nitrogen aeration machine, but problems such as an increase in pressure loss when the filter itself is clogged and a low collection rate have been encountered. In addition, installing a separate electric dust removal device would be expensive and take up space, and at the same time, the cleaning of the dust removal unit would be complicated, and there were also problems with scratches. By installing a discharge wire in the air inflow, and using the 71 pin of the heat exchanger as the opposing ground electrode and dust collection plate of the electric dust remover, at the same time, installing a water supply cylinder above the heat exchanger to spray water to the fins. This is an attempt to eliminate the above drawbacks. An embodiment of the present invention will be described below.

In Figures 1 to 3, 11) is the fuselage, (2) is the air inlet provided with the lower VC of the fuselage + 11, i31 is the blower,
(4) Cold water or hot water as a cooling medium and a blower (31K
A well-known heat exchanger that exchanges the air sucked in with metal heat,
Cold and hot water inlet (4a) and outlet (4b)? It is made up of a copper pipe through which hot and cold water flows, a plastic heat exchange tube (4c), and a large number of aluminum plate fins (4d) spaced equally apart from each other by mm on this heat exchange tube (4c). There is.

(5) Fins (4d) on the whole air inflow side of the heat exchanger 14+
Discharge line installed opposite f13Hc discharge line (5)
? High voltage supply frame for stretching and supplying all high voltage, (
7) An insulator that insulates the μ high pressure supply frame (6) and the fuselage [11], (8) is a high output generator that supplies high voltage to the high rich pressure supply frame (6), and (9) is a heat generator. A water supply pipe with a sulin (9a) provided above the exchanger (4) and perpendicular to the fin (4d) at the inlet iL of the heat exchanger (4), with a permanent valve (10), The OU, which is connected to the water supply etc. via the pressure reducing valve, is a drain pan that receives all the condensed water from the heat exchanger (4) during cooling and the water supplied from the water supply pipe (9) to the fins (4d). It has a drain pipe (12a)k. (13) is an outlet for dust removal and cooled/heated air, which is provided at the top of the fuselage (1).

Next, to describe the operation, the heat exchanger (4) is filled with cold water or a
Changsui? When the flow-type air conditioner σ1 operation switch (not shown) is turned on, the air blower (passes through 31 and fins (4d) of the discharge cap (5) and heat exchanger (4) shown in FIG. 2) is turned on. The dust in the airflow enters the ionized part and dust collection part area formed between the two, where it is charged with ■, and then moved by the coulomba to the top a side of the 9th fin (4d) in the direction of the military aerodynamic force line. ,
It adheres to and is collected by the fins (4d). And only clean air fin (4d)? The air passes through, exchanges heat, becomes cold or warm air, and is discharged to the outside of the V-aircraft body through the air outlet. On the other hand, during cooling operation, condensation water generated by heat exchange between cold water and air in the heat exchanger (4)
) is washed away by the dust collected on the heat exchanger ( 4
Water flows into the water supply pipe (9) provided perpendicularly to the fin (4d) on the upper upstream side of 1 through the pressure reducing valve Ql)', and from the slit (9a) of the water supply pipe (9), the water flows to the fin (4d). The entire surface of the most upstream side of the fin (4d) is washed away and the collected dust is washed away and stored in the middle van (2).
It is discharged together with water from the drain pipe (12&). Note that all the hot water that can be supplied to the heat exchanger (4) may be used as the water source for the water supply pipe +91, or water may be sprinkled from the water supply pipe (9) during both cooling and heating.

As described above, in this invention, the fins of the heat exchanger are used as opposing grounding poles for the discharge wires, and a water supply pipe is provided above the heat exchanger to spray water onto the fins and allow all collected dust to flow down. Therefore, it is possible to provide an air conditioner with a simple structure, high collection rate, space saving, low pressure loss, and no need for filter replacement or cleaning as in the conventional case, solving the problems of the conventional method. In addition, a humidifying effect can be expected by sprinkling water on the heat exchanger during heating.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of an air conditioner showing an embodiment of the present invention, and FIGS. 2 and 3 are partially enlarged and perspective views showing essential parts of the invention. Blower, (41 is a heat exchanger, (51 is a discharge wire, (9) is a water supply pipe, and Q2 is a drain pan.0 Note that in 1 and 1, the same reference numerals indicate the same or equivalent parts.O Agent: Kuzuno Ig- Figure 1

Claims (1)

[Claims] A heat exchanger consisting of a heat exchange tube through which a cooling medium flows and a large number of fins attached to the heat exchange tube, a blower that ventilates the heat exchanger, a drain pan for receiving drain 4 from the heat exchanger, and the above-mentioned A lightning wire disposed opposite to the fins on the air inflow side of the heat exchanger, and forming the entire ionization part and dust collection part area between the fins as a grounding pole opposite to the fin chamber of the heat exchanger; and an air conditioner comprising a water supply pipe above the heat exchanger that sprinkles water on the fins and causes dust collected on the fins to flow down.