JP2012149873A - Floor installation type air conditioner for single-span - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compact floor installation type air conditioner for single-span excellent in humidifying efficiency, easy to install and easy to perform maintenance and inspection.SOLUTION: A casing (1) is configured by connecting a coil block (11) in which a heat exchange coil (3) is incorporated, a hollow maintenance block (12), and a fan block (13) in which an air supply fan (4) is incorporated through stacking them and communicating them with each other, in sequence. An air intake port (5) is formed on one face of the coil block (11), and a coil (3) is arranged near the air intake port (5) interposing a filter (7) between the air intake port (5) and itself. An inspection door (9) for inspecting the inside of the air conditioner, which closes/opens another face facing one face of the maintenance block (12), is prepared on the another face, the filter (7) being put in and taken out through the another face, and steam for humidification is emitted in the coil block (11).

Description

  The present invention relates to a one-span floor-mounted air conditioner.

  There is an air conditioner with a steam humidifier.

JP-A-4-45331

  However, since the vapor humidifier has a long evaporation absorption distance, a long space is required to perform humidification, and an increase in size of the airframe is inevitable.

  In order to solve the above problems, the present invention is configured by sequentially connecting a coil block having a heat exchange coil therein, a hollow maintenance block, and a fan block having an air supply fan therein in order. The casing is configured, an air intake is provided on one surface of the coil block, the coil is disposed in the vicinity of the air intake with a filter interposed therebetween, and the other surface facing the one surface of the maintenance block The main feature is that an in-machine inspection door for inserting and removing the filter is provided and the coil block is configured to release steam for humidification.

According to the invention of claim 1,
(1) The evaporation absorption distance of steam humidification can be increased by utilizing the space of the maintenance block. Therefore, the humidification efficiency is good and the saturation efficiency can be increased, and the humidity control range is widened to improve the comfort.
(2) Since the maintenance block is used for both maintenance and humidification space, the size of the machine can be prevented from being increased, and since it is stacked vertically, the installation area can be reduced. Since it can be taken in and out, there is no need for a maintenance space on the air intake side, and space can be saved.
(3) Since it is compact, it is suitable for a method of air-conditioning only one span (between main beams) in floor installation.

According to the invention of claim 2,
(1) Because it is an elliptical tube, there is little pressure loss, and even if the number of rows is increased and the effective length of the heat transfer tube is increased, the blast power does not increase. The running cost can be greatly reduced by increasing the temperature to a large temperature difference and blowing the air at a low temperature.

According to the invention of claim 3,
(1) A simple machine room can be provided by the partition, and since it can also be used as an air intake chamber, a member such as a blower duct becomes unnecessary, and costs can be reduced.

According to the invention of claim 4,
(1) Mixing the steam and air so that the air discharged from the humidification nozzle is wrapped in the second hand in front of the humidification nozzle, and the humidification nozzle is bypassed and then merged again, so that the steam released from the humidification nozzle is wrapped. This makes it possible to shorten the evaporative absorption distance and to prevent condensation and dew condensation on the casing and fan of the air conditioner, thereby further reducing the size of the casing.

  FIGS. 1 and 2 show an embodiment of a one-span floor-mounted air conditioner according to the present invention. This one-span floor-mounted air conditioner has an air duct 2 and a heat exchange coil in a vertically long casing 1. 3, an air supply fan 4, a filter 7, a drain pan 8 for discharging coil condensed water, and a humidifying nozzle 14 of a steam humidifier. The casing 1 is provided with an air intake port 5, an air supply port 6, and an in-machine inspection door 9, and the air intake port 5 and the air supply port 6 are connected in communication with each other through the air blowing path 2. The air supply port 6 communicates with an air outlet of the indoor ceiling through a blower duct or the like, and supplies air to an air-conditioned space such as a room. The air intake 5 takes in outside air, return air, and the like from a machine room 10 that also serves as an air intake chamber. The machine room 10 is configured by surrounding the casing 1 with a partition 15.

  The fan 4 is provided in the air blowing path 2 leeward of the coil 3 and blows air in a suction manner. Solid and dotted white arrows indicate the air blowing direction, and the air sucked by the fan 4 passes through the coil 3 and is heat-exchanged, and is supplied from the air supply port 6 as cool and warm air. The coil 3 is formed by inserting heat transfer tubes into a large number of heat transfer plates provided to allow ventilation, and the heat medium or refrigerant flowing through the heat transfer tubes and the passing air exchange heat through the heat transfer tubes and the heat transfer plates. . The heat transfer tube is preferably an elliptical tube, but may be a circular tube.

  The casing 1 includes a coil block 11 having a coil 3 provided therein, a hollow maintenance block 12, and a fan block 13 having a fan 4 provided therein, which are stacked and connected in order. An air intake 5 is provided on one surface of the coil block 11, and the coil 3 is disposed in the vicinity of the air intake 5 with a filter 7 interposed therebetween. A removable in-machine inspection door 9 for inserting and removing the filter 7 is provided on the other surface opposite to the one surface of the maintenance block 12, and the in-machine inspection door 9 is opened (as indicated by a phantom line in FIG. 1) to insert and remove the filter 7. To do. A humidifying nozzle 14 is provided between the other surface of the coil block 11 and the coil 3, and is configured so as to release steam for humidification by the coil block 11. Evaporation absorption is performed in both spaces of the coil block 11 and the maintenance block 12. Let the air humidify.

  3 and 4 are simplified views of the inside of the coil block 11, and thick dotted arrows indicate the flow of air for supply. Inside the coil block 11, a tubular humidifying nozzle 14 that discharges steam for humidification is provided horizontally along the coil 3 on the air outlet side of the coil 3, and the coil 3 is disposed between the coil 3 and the humidifying nozzle 14. A partition member 16 is provided to divide the supply air that has passed through the lower side of the humidification nozzle 14 and guide it upward, and the supply air diversion air between the coil 3 and the partition member 16 is further divided to provide the humidification nozzle 14. An opening 17 is provided along the coil 3 so as to merge with the other shunt air for air supply above the air.

  The humidifying nozzle 14 has a large number of spray holes 20 for discharging steam upward. The partition member 16 faces the air outlet of the coil 3 so as to cover the windward side and bottom surface of the humidifying nozzle 14, and is a vertical vertical wall that divides the air passage 2 between the coil 3 and the humidifying nozzle 14 in the left and right directions. And a horizontal bottom wall portion 19 which faces the bottom surface of the casing 1 and protrudes from the lower end portion of the vertical wall portion 18 in the leeward direction and divides the air passage 2 vertically below the humidifying nozzle 14. . The vertical wall portion 18 is provided with an opening 17 horizontally above the humidifying nozzle 14 and along the humidifying nozzle 14. A humidifying nozzle 14 is arranged at the corner of the partition member 16 formed by the vertical wall portion 18 and the bottom wall portion 19 to shield the air for supplying air from directly hitting the humidifying nozzle 14 and discharged. The supply air is guided and guided so as to wrap the steam above the humidifying nozzle 14. In this way, in order to guide and guide the supply air, it is preferable to make the fan 4 a suction type to promote the diversion and merging of the air.

  The present invention is not limited to the above-described embodiments, and the design can be freely changed without departing from the gist of the present invention. For example, the partition member 16 has an L-shaped cross-sectional structure, but has a J-shaped structure and configuration. May be changed. Furthermore, it is possible to change to various types such as a well-known electrode type, electric heating type, and vapor spray type as a steam type humidifier, or to make the humidifier a vaporizing type. In the example shown in the figure, only the humidifying nozzle 14 that discharges steam is illustrated, but a device such as a steam generator that supplies steam to the humidifying nozzle 14 may be provided in the casing 1. Moreover, it is also free to provide the air intake 5 and the filter 7 on the other surface of the casing 1.

It is a side view of the floor installation air conditioner for one span of this invention. It is a front view of the floor installation air conditioner for one span. It is the simple explanatory view which looked at the inside of a coil block from the side. It is the simple explanatory view which looked at the inside of a coil block from the front.

DESCRIPTION OF SYMBOLS 1 Casing 3 Coil 4 Fan 5 Air intake 7 Filter 9 In-machine inspection door 11 Coil block 12 Maintenance block 13 Fan block 15 Partition 16 Partition member 17 Opening part

Claims (4)

  A coil block (11) having a heat exchange coil (3) provided therein, a hollow maintenance block (12), and a fan block (13) having an air supply fan (4) provided therein are sequentially arranged. The casing (1) is configured by being connected in layers, an air intake (5) is provided on one surface of the coil block (11), and a filter (7) is sandwiched between the air intake (5). An in-machine inspection door (9) for placing and removing the filter (7) on the other surface opposite to the one surface of the maintenance block (12) is provided, and the coil block (11) One-span floor-mounted air conditioner configured to release humidifying steam.   The floor installation air conditioner for one span according to claim 1, wherein the heat transfer tube of the coil (3) is an elliptical tube.   The one-span floor-mounted air conditioner according to claim 1 or 2, wherein the casing (1) is surrounded by a partition (15) to constitute a machine room (10) that also serves as an air intake chamber.   A humidification nozzle (14) that discharges steam for humidification is provided on the air outlet side of the coil (3), and the supply air that has passed through the coil (3) between the coil (3) and the humidification nozzle (14) A partition member (16) for diverting the working air below the humidifying nozzle (14) and guiding the air upward is provided, and the supply air split air between the coil (3) and the partition member (16) is further provided. 4. The one-span floor-mounted air conditioner according to claim 1, further comprising an opening (17) that is split and joined to the other shunt air for air supply above the humidifying nozzle (14).

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