JP3802531B2 - Built-in water-cooled heat pump air conditioner - Google Patents

Description

  The present invention relates to a buried water-cooled heat pump type air conditioner.

  The embedded water-cooled heat pump type air conditioner that exchanges heat between the heat source water and air conditioning air via the circulating refrigerant is a fan motor unit for supplying air for air conditioning, and water heat that exchanges heat of the circulating refrigerant with the heat source water. It includes an exchanger, an air heat exchanger for exchanging heat of air-conditioning air using a circulating refrigerant, a compressor, a drain pan, and the like.

  This air heat exchanger and drain pan are subject to legal inspection by the so-called building management method, and it is necessary to perform cleaning or the like at predetermined intervals. However, since the air heat exchanger and the drain pan are integrally fixed inside the casing, it is necessary to disassemble and clean the casing from the ceiling, and there is a problem that maintenance is very troublesome and costly.

No. 2-9314

  The problem to be solved is that the maintenance of the drain pan and the air heat exchanger is troublesome.

  In order to solve the above-mentioned problem, the present invention forms an air passage in the casing in an L shape, an empty portion formed by a corner surface of the L-shaped air passage and the inner surface of the casing, and the empty chamber And an end of one side of the L-shaped air passage adjacent to the portion is disposed on the same side surface of the casing, and an air heat exchanger of the water-cooled heat pump is provided on the other side of the L-shaped air passage. The other components of the water-cooled heat pump are provided in the vacant chamber, and a drain pan is provided to be retractable from the same side of the casing across the air heat exchanger and the lower portion of the vacant chamber, and the L-shaped The most important feature is that a fan motor unit is provided on one side of the air passage so that it can be drawn out and housed on the same side of the casing, and a fan motor unit drawer / housing port also serving as an air heat exchanger inspection port is formed on the same side 3. And it features.

  According to the first aspect of the present invention, the drain pan 1 and the fan motor unit 7 can be pulled out and maintained without lowering the casing 4 from the ceiling, and the air heat exchanger 9 can be further maintained from the fan motor unit pull-out storage port 2. Since all these operations can be performed from the same side surface 3 of the casing 4, workability is good and maintenance is easy.

  FIG. 1 and FIG. 2 show an embodiment of a buried water-cooled heat pump type air conditioner according to the present invention. This buried type water-cooled heat pump type air conditioner supplies heat source water and air-conditioning air via a circulating refrigerant. A compression-type water-cooled heat pump 6 that exchanges heat, a fan motor unit 7 that supplies air for air conditioning to the air-conditioned space, and a drain pan 1 are installed in the ceiling. The air passage A in the casing 4 is formed in an L shape, and a vacant portion B formed by a corner surface of the L-shaped air passage A and an inner surface of the casing 4 and an L shape adjacent to the vacant portion B are formed. An end on one side of the air passage A is disposed on the same side surface 3 of the casing 4, and an air heat exchanger 9 of the water-cooled heat pump 6 is provided on the other side of the L-shaped air passage A and the water-cooled heat pump 6 is provided. Are provided in the vacant part B, and the drain pan 1 is provided so as to be drawable and retractable with respect to the same side surface 3 of the casing 4 across the air heat exchanger 9 and the lower part of the vacant part B. A fan motor unit 7 is provided on one side of the casing 4 so as to be retractable and retractable with respect to the same side surface 3 of the casing 4, and a fan motor unit drawer / accommodating port 2 also serving as an air heat exchanger inspection port is formed on the same side surface 3. In each figure, the white arrow indicates the wind direction.

  The fan motor unit 7 is constructed by attaching the fan and the motor to the support plate and integrating them so that the fan motor unit 7 can be detachably fixed to the guide member in the casing 4 and can be pulled out and stored through the fan motor unit drawer storage port 2. The unit drawer storage port 2 is covered with an exterior plate, a cover or the like so as to be detachable or openable. An outlet 5 for pulling out and storing the drain pan 1 is formed at the lower part of the same side surface 3 of the casing 4, and the drain pan 1 is detachably or closably covered with an exterior plate, a cover, etc. Configure to be fixed. In order to perform maintenance, the fan motor unit drawer storage port 2 and the outlet 5 on the same side surface 3 of the casing 4 facing the inspection port 11 installed on the ceiling plate are opened, and the drain pan 1 and the fan motor unit 7 are removed from the casing 4. The air heat exchanger 9 is maintained from the fan motor unit drawer storage port 2 using the empty space of the L-shaped air passage A formed by pulling out the fan motor unit 7.

  The water-cooled heat pump 6 includes a plate-type water heat exchanger 8 that exchanges heat of circulating refrigerant with heat source water, an air heat exchanger 9 that exchanges heat of air-conditioning air with circulating refrigerant, a compressor 10, and an illustration not shown. Expansion valve, forward / reverse switching valve in the refrigerant circulation direction (four-way valve), liquid receiver, etc., which are connected to each other to form a refrigerant circulation circuit and to exchange heat with the water heat exchanger 8 by the switching valve The heat absorption and heat dissipation (evaporation function and condensation function) of the container 9 are configured to be switchable. Air-conditioning air is cooled or heated by the air heat exchanger 9 of the water-cooled heat pump 6 to perform cooling and heating. The air conditioning air inlet of the casing 4 communicates with an air-conditioned space such as a room via a duct for returning air intake, and the air conditioning air outlet of the casing 4 is communicated with a room such as a room via a duct for air supply. Communicate with the air-conditioned space.

The perspective view which shows a partially buried water-cooled heat pump type air conditioner in a partially broken state. The plane sectional view of a burial type water cooling heat pump type air conditioner.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drain pan 2 Fan motor unit drawer storage port 3 Same side surface 4 Casing 6 Water-cooled heat pump 7 Fan motor unit 9 Air heat exchanger A Air supply path B Vacant room part

Claims (1)

  An air passage A in the casing 4 is formed in an L shape, and a vacant portion B formed by a corner surface of the L-shaped air passage A and an inner surface of the casing 4 and the vacant portion B adjacent to the vacant portion B are formed. An end portion on one side of the L-shaped air passage A is disposed on the same side surface 3 of the casing 4, and an air heat exchanger 9 of the water-cooled heat pump 6 is provided on the other side of the L-shaped air passage A. At the same time, the other components of the water-cooled heat pump 6 are provided in the vacant portion B, and the drain pan 1 is pulled out from the same side surface 3 of the casing 4 across the air heat exchanger 9 and the lower portion of the vacant portion B. A fan motor unit 7 is provided on one side of the L-shaped air passage A so as to be retractable and retractable with respect to the same side surface 3 of the casing 4 and is also used as an air heat exchanger inspection port. The mouth 2 is formed on the same side 3 Heaven Umakatachi water-cooled heat pump air conditioning system, characterized in that.

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