JP3176483U - Water collecting bucket device for cooling drain water - Google Patents

Abstract

A drain water-cooled water collecting bucket device is provided that is less prone to malfunction.
A water collecting bucket device comprises a rotor bucket 10 extending along the longitudinal direction of a rotation axis L, and is housed in a casing 2 so as to be rotatable around a rotation axis within a predetermined angle β. The rotor bucket has an open top surface 10a, a cross-sectional shape that is symmetrical, and a bottom portion 10b that is positioned below the rotation axis. In the normal state, the rotor bucket takes a water collection posture A with the upper surface opening directed upward, and the portion below the rotation shaft stores drain water to form a bucket weight portion 13, and the drain water is rotated to the rotor bucket. If the water is stored above a certain level, the bucket can be rotated and tilted by overcoming the normal maintenance moment M of the bucket weight portion, and the discharge posture B is set such that the upper surface opening is directed to tilt β / 2 sideways.
[Selection] Figure 1

Description

  In order to enhance the cooling capacity of the cooling system and save energy for operation, this device uses drain water from the indoor unit to cool the heat exchanger of the outdoor unit and prevents the cooling capacity from decreasing. The present invention relates to an improvement of a bucket device.

  In general homes, stores, office buildings, and the like, cooling devices using air as a heat source are often used in order to keep the room at a comfortable temperature.

  Such a cooling device includes an indoor unit that controls indoor temperature and an outdoor unit that is installed outdoors. The indoor unit absorbs indoor heat, the compressor compresses the refrigerant, and the outdoor unit emits air. Generally, a system is adopted in which the refrigerant that has been taken in and compressed is subjected to heat exchange with a heat exchanger and condensed, and the condensed refrigerant is circulated through the indoor unit.

  However, in the summer heat, even though the outdoor unit that performs the work of radiating the indoor heat to the hot outdoors is maximally operated, sufficient cooling capacity cannot be obtained and power is wasted. In addition, since the cooling device is fully operated, the durability of the device is reduced. This is because the outdoor temperature exceeds 30 ° C in the daytime in summer, and especially on the rooftop of an office building, the heat exchange efficiency is lowered by the outside air temperature around the outdoor unit exceeding 40 ° C due to radiant heat, etc. This is because dirt or the like promotes a decrease in the efficiency of the heat exchanger.

  On the other hand, the cooling water is sprayed toward the fins of the heat exchanger by the spray nozzle, and the heat exchange efficiency of the heat exchanger is improved by utilizing the heat of evaporation of the cooling water, thereby ensuring the desired cooling capacity. There has been proposed an energy saving device for operating energy of a cooling device that reduces power consumption (see Patent Document 1 and Patent Document 2).

JP 2000-28230 A JP 2001-317821 A

  However, the operation energy saving device of the cooling device described in the above-mentioned conventional publication uses tap water or industrial water as the cooling water, but requires a large amount of cooling water, which increases the cost of water, etc. Both operating costs are high. Moreover, since the heat exchanger fins are always wet with directly sprayed tap water, etc., chlorine, iron, calcium, silica dioxide, etc. contained in the tap water adhere to the fins of the condenser and heat exchange There was also a problem that the fins and conduits of the vessel were corroded in a short period of time.

  Therefore, in view of such problems, the present inventor has generated in cooling operation and has been discarded in the past. It is condensed water of humid air, and the equipment cost is increased by using cool drain water that is almost as pure water as possible. In addition, the present invention provides a cooling device operating energy saving device that can reduce power consumption while ensuring cooling capability without incurring high operating costs, and can also guarantee the expected durability (Japanese Patent Laid-Open No. 2004-124). -30492)) caused a problem that the drain water collecting bucket is likely to malfunction. Then, this invention aims at elucidating the cause of the malfunction of a drain water catchment bucket, and providing the drain water cooling-type catch bucket apparatus which solved this.

The inventor accumulates drain water in a water collection bucket, and when the drain water exceeds a predetermined level, the water collection bucket is rotated to discharge the drain water to the outdoor heat exchanger and cool it, while the water collection bucket after discharge is collected. In the drain water cooling system in which the water is returned to the original water collection position and the water is collected, the cause of the malfunction is that the bucket is positioned above the rotating shaft and the weight is positioned below the rotating shaft. The present invention was completed as a result of diligent study, focusing on the configuration that allows the bucket to take a normal position for receiving drain water by the balance between the two. That is, the present invention
The water collecting bucket device 1 is composed of a rotor bucket 10 extending along the longitudinal direction of the rotation axis L, and is provided in the casing 2 so as to be rotatable around the rotation axis L within a predetermined angle β.
The rotor bucket 10 has an upper surface 10a that is open to receive drain water, a cross-sectional shape that is symmetrically narrowed, and a bottom portion 10b that is positioned below the rotation axis L. Normally, the rotor bucket 10 is Taking the water collection posture (A) with the upper surface opening 10a directed upward, the portion below the rotation axis L stores the drain water to form the bucket weight portion 13,
When the drain water is stored in the rotor bucket 10 above the rotational axis L by a certain amount or more, the bucket 10 can be rotated and tilted by overcoming the normal maintenance moment M of the bucket weight portion 13, and the upper surface opening 10a is tilted by β / 2 to the side. It is characterized by being configured to take a directed discharge posture (B).

  One of the features of the present invention is that the bottom portion of the bucket that collects drain water is positioned below the rotation axis L to take a normal posture (A), and the drain water is stored below the rotation axis L. The overlap portion 13 is formed. As a result, the bucket 10 secures a normal maintenance moment M by storing the weight of the bucket 13 by its own weight, avoiding an abnormal operation at the time of storing water, and providing a sufficient storage amount of drain water in the bucket by the discharge posture (B). Can be secured. On the other hand, the returning operation to the normal posture can be ensured, and the malfunction at the time of collecting and discharging the bucket can be eliminated.

  Another feature is that the rotor bucket 10 tilts (β−α) / 2 in the discharge posture (B) according to the relationship between the spread angle α of the receiving plates 12 and 12 and the V-shaped angle β of the V-shaped stopper 21. The angle is determined. Thereby, it is possible to ensure the return operation to the original position by avoiding the extra reversal operation of the bucket, and to avoid the return delay and the inability to return.

  Furthermore, in a preferred aspect of the present invention, a lid 3 is provided on the upper surface of the casing 2, and dripping of drain water into the bucket is balanced to the lid 3 via a nozzle 31 on the support axis of the bucket. By collecting the water, it is possible to maintain the water collecting posture (A) up to the water discharge in the bucket together with the normal maintenance moment M of the bucket, and to prevent a malfunction.

It is an operation explanatory view of a water collection bucket device of the present invention, (A) shows a water collection posture, and (B) shows a discharge posture. It is an assembly perspective view of the water collection bucket apparatus of FIG. It is a system diagram of a conventionally well-known drain water cooling system.

Hereinafter, the present invention will be described in detail based on specific examples shown in the drawings.
FIG. 3 is a configuration diagram of a cooling system that cools a heat exchanger of a conventionally known cooling device with drain water. In the figure, an outdoor unit 100 is installed outdoors, and an indoor unit (not shown) is installed indoors. A circulation pipe (not shown) for circulating the refrigerant is provided between the machines and the drain water is collected in the water collection bucket device 1. On the other hand, the heat exchanger 101 is provided with fins, and the air is taken into the outdoor unit housing 110 through the air intake surface (heat exchanger surface) 102 by the suction fan 103, and the air and the compressed refrigerant are mixed. Heat exchange is performed with fins.

  Generally, a drain water collecting bucket device 1 is attached to the top plate of the outdoor unit housing 110. In this bucket apparatus 1, the casing (housing) 2 has a substantially sealed rectangular parallelepiped shape, a rectangular parallelepiped container shape that can receive drain water at the bottom wall surface (bottom), and the housing 2 is a top plate of the outdoor unit casing. And is fixed to the top plate of the outdoor unit casing with screws or the like.

  On the bottom wall surface of the casing 2, there is a through long groove having a size that allows the drain water received on the air intake surface 102 side of the outdoor unit 100 to flow downward, for example, over several seconds, over almost the entire length in the longitudinal direction. A curved guide plate which is formed and hangs downward is attached to the outlet thereof, and drain water is guided and discharged to the heat exchanger 101 of the outdoor unit for cooling.

  In the present invention, as shown in FIG. 2, the water collecting bucket device 1 is composed of a rotor bucket 10, a casing 2, a lid 3, a guide plate 4, and a fastener 5 thereof. Is provided. This bucket 10 is a rotor bucket consisting of a pair of receiving plates 12, 12 extending along a longitudinal direction of the shaft across a pair of left and right rotors 11, 11 rotating around a rotation center axis L. The upper surface 10a is opened, and the cross-sectional shape perpendicular to the axis of the rotation axis L across the centers of the rotors 11 and 11 is such that the receiving plates 12 and 12 are spread evenly on both wings with a spread angle α of about 90 °. The bottom corner portion 10b is positioned below the rotation center axis L and approximately two thirds of the diameter, and the drain water (shaded portion) stored below the rotation center axis L is the weight of the bucket. It is characterized in that the ridge portion 13 is formed.

  On the other hand, V-shaped stoppers 21 are formed on the inner surfaces of both ends of the casing 2 so as to extend in a V shape at an angle β of about 120 ° and obliquely upward and downward with the rotation axis L as an intersection, and project inward. On the other hand, a triangular upright piece 14 is fixed to the rotors 11, 11 provided outside the bucket 10, and this is placed on the intersection of the V-shaped stopper 21, and the bucket 10 is arranged in the casing 2. Decorated. The bucket 10 is rotated by 60 ° to the left and right and is rotatable like a pendulum within a 120 ° V-shaped angle, and both blade receiving plates 12 are at a horizontal position (stopper V angle β−bucket opening angle α) / 2 Stops when the upright piece 14 comes into contact with the V-shaped stopper 21 at a downwardly inclined position (about 15 ° inclination), and takes a discharge posture (B).

  The lid 3 is provided on the upper surface of the casing 2, and the dripping of the drain water W to the bucket 10 is dropped to the lid 3 through a nozzle 31 on the rotation axis of the bucket in a left-right balance to collect water. . On the other hand, a through long groove 22 is formed in the lower part of the casing 2 over almost the entire length in the longitudinal direction, and a curved guide plate 4 hanging downward is attached to the outlet of the casing 2 via a mounting bracket 5 to guide drain water. It cools by discharging to the heat exchanger 101 of the outdoor unit.

  Therefore, under normal conditions, as shown in FIG. 1A, the rotor bucket 10 takes a water collecting posture (A) in which the upper surface opening 10a is directed upward, and the drain water W is fed to the water collecting bucket from the rotary shaft L. When the water is stored in the upper part, the normal state maintaining moment M of the weight part 13 is overcome, the upper surface opening 10a is rotated, and the discharge posture (B) shown in FIG. .

  When the cooling device is operated, the refrigerant exchanges with the indoor air in the indoor unit, and the refrigerant that has absorbed the indoor heat is compressed by the compressor and sent from the indoor unit to the outdoor unit 100. In the outdoor unit 100, the suction fan 103 is operated, and air is taken into the housing of the outdoor unit 100 from the atmosphere intake surface 102 side, and refrigerant from the indoor unit (not shown) exchanges heat with the atmosphere in the heat exchanger 101. Is condensed and returned to the indoor unit.

  At that time, when the refrigerant exchanges heat with the indoor air in the indoor unit, drain water is generated, and this drain water is discharged from the indoor unit through the drain hose. The drain hose is connected to the water collecting bucket device 1, and drain water from the indoor unit flows down into the housing 2. In the housing 2, the rotor bucket 10 normally takes a horizontal water collecting posture (A) due to the weight of the bucket 10, and the drain water W flowing into the housing 2 is received inside the bucket through the upper opening 10 a of the bucket 10. And stored.

  When the water surface of the drain water W in the rotor bucket 10 exceeds the level of the rotation center axis L, and the rotation moment that overcomes the normal maintenance moment M of the weight portion 12 up to the center axis L is obtained, the bucket 10 When the water collecting posture (A) is rotated by 60 °, one of the receiving plates 12 of the bucket is 15 ° downward from the horizontal level, that is, at a position inclined by (β−α) / 2, and the upright piece 14 is a V-shaped stopper. Since it contacts 21, it stops at that position. Therefore, the drainage posture (B) is taken, and the drain water stored in the bucket 10 is discharged into the housing 2.

  Then, the drain water discharged at the bottom of the housing 2 flows down from the through long groove 22 all at once and is received by the guide plate 4, and is discharged downward while being spread and dispersed in the longitudinal direction by the guide plate 4. It flows to the upper end portion of the air intake surface 102 of the machine 100 and is transmitted to the air intake surface 102, is discharged downward along the air intake surface 102, wets the entire surface of the air intake surface 102, and is heated by the heat of the fins of the heat exchanger 101. By assisting the refrigerant condensing capacity which is evaporated and insufficient, the operation energy is saved as well as the prevention of cooling capacity.

  The bucket 10 from which the drain water has been discharged returns to the original water collection posture (A) due to the weight of the bucket, and subsequently receives the drain water of the indoor unit. The operation as described above is repeated, and the air intake surface 102 of the outdoor unit 100 is intermittently wetted by the drain water, cooled, and heat exchange efficiency is improved.

DESCRIPTION OF SYMBOLS 1 Drain water collection bucket apparatus 10 Rotor bucket 13 Overlapping part 14 Upright piece 2 Housing (housing)
21 V-shaped stopper 3 Lid 31 Nozzle M Normal maintenance moment

Claims (3)

Drain water is collected in the water collection bucket, and when the drain water exceeds the specified level, the water collection bucket is tilted to discharge the drain water to the outdoor heat exchanger and cool it. It is a drain water cooling type water collection bucket device that returns to the water collection position and collects water.
The water collecting bucket device (1) is composed of a rotor bucket (10) extending along the longitudinal direction of the rotation shaft (L), and is rotated around the rotation shaft (L) within a predetermined angle (β). Freely housed in the casing (2),
The rotor bucket (10) has an upper surface (10a) that is open to receive drain water, a cross-sectional shape that is symmetrical, and a bottom portion (10b) that is positioned below the rotation axis (L). In the normal state, the rotor bucket (10) takes a water collecting posture (A) with its upper surface opening (10a) oriented upward, and the portion below the rotating shaft (L) stores drain water and a bucket weight portion. Forming (13),
When drain water is stored in the rotor bucket (10) above the rotating shaft (L) for a certain amount of time, the bucket (10) can be rotated and tilted by overcoming the normal maintenance moment (M) of the bucket weight (13). A drain water automatic discharge type water collecting bucket device, characterized in that it is configured to take a discharge posture (B) in which the opening (10a) is tilted by β / 2 sideways. The water collecting bucket device (1) includes a pair of receiving plates (12, 12) extending between the pair of left and right rotors (11, 11) rotating around the rotating shaft (L) and extending along the longitudinal direction of the shaft. A rotor bucket (10), the rotor bucket (10) having an upper surface (10a) open, and a cross-sectional shape perpendicular to the rotational axis thereof spreads evenly with a spread angle (α) of about 90 °. It has a V shape and its bottom corner (10b) is located below the rotation axis (L) and approximately two thirds of the diameter,
On the other hand, a V-shaped stopper (21) projecting inwardly at a V-shaped angle (β) of about 120 ° from the center of the rotation axis is provided on the inner surfaces of both ends of the casing (2), while the rotor bucket (10) Upright pieces (13) project from the rotors (11) at both ends, and the rotor bucket (10) is placed so as to swing left and right like a pendulum through the upright pieces (13). 13) is mounted in the casing (2) so as to be rotatable within a V-shaped angle (β) by contact with the V-shaped stopper (21),
The water collecting bucket according to claim 1, wherein the rotor bucket (10) is tilted in the discharge attitude (B) until the receiving plate (12) is inclined (β-α) / 2 degrees below the horizontal line. apparatus. A lid (3) is provided on the upper surface of the casing (2), and dripping of drain water into the bucket is collected on the lid (3) through a nozzle (31) on the support axis of the bucket in a left-right balance. The water collecting bucket device according to claim 1, wherein the water collecting bucket device is configured to perform water.

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