JP3050898U - Cooling device for circulating chilled water in air conditioners - Google Patents

Abstract

(57) [Summary] [PROBLEMS] In a cooling device for circulating chilled water in an air conditioner, when cooling chilled water returning to a radiator, air from a blower is not directly blown, and scattering of chilled water, contamination of chilled water, Prevent excessive consumption of cold water. SOLUTION: An opening is provided in the center of a front plate and a back plate of a housing 1, a radiator is provided in a storage room corresponding to the opening, and an upper storage chamber 4 and a lower storage chamber which are respectively sealed above and below the radiator. Forming a storage chamber 8 and communicating with a communication path 13a of a tubular member 13 provided in the radiator 11;
The cold water returned to the upper storage chamber 4 is caused to flow by its own weight to the lower lower storage chamber 8 via the communication passage 13a, and when the cold water flows, the radiator 11 is cooled by the blower 14 and stored as cooling water. The air was circulated to the air conditioner by the pump 23.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 This invention relates to a cooling device for circulating chilled water used in a central air conditioner.

[0002]

[Prior art]

 In a central air conditioner, cold water used for heat exchange in an indoor unit that sends out conditioned air is recooled by a radiator provided in an outdoor unit (cooling tower) and circulated to the indoor unit side. A cooling tower arranged on the roof of a conventional building stores cold water circulating through a return pipe from the indoor unit in a water tank having an upper opening, and faces the opening of the water tank in opposition to the cold water. Air is forcibly blown onto cold water by a blower attached to the chiller to cool it by air cooling and circulate it as cooling water.

[0003]

[Problems to be solved by the invention]

 However, the above-described configuration of the conventional cooling tower for circulating chilled water has the following problems. Since the blower forcibly blows air onto the cold water, the surface of the cold water undulates and forms fine mist droplets that adhere to the surface of the fan blades, causing the water droplets to scatter outside the water tank and wet the surroundings. And may cause noise. Due to the rotation of the fan blades, convection occurs in the surrounding air, and this airflow also results in the suction of outside contaminated air, including a large amount of dust, and blowing on the cold water surface, causing various bacteria to enter the water tank. It may be cultivated at Therefore, pathogenic bacteria will be mixed into the circulating chilled water, causing respiratory illness and causing troubles such as clogging of the circulating chilled water piping. Since the fan blades blow air directly to the chilled water to cool the air, the chilled water is consumed so much that the chilled water must be constantly added to the water tank, which is very troublesome.

[0004] This invention solves the above-mentioned problems, and guides cold water that has been heat-exchanged in an indoor unit and returned by a return pipe to a sealed upper storage chamber, and formed in a bottom surface of the upper storage chamber. The radiator is caused to flow down by its own weight into the communication passage of the tubular member of the radiator through the hole to communicate with the lower storage chamber, and the radiator is air-cooled by a blower disposed opposite the communication passage of the tubular member of the radiator. Then, by cooling the cold water flowing down in the communication passage and circulating the cooling water to the indoor unit through the outward connection pipe, the air from the blower is not directly blown on the circulating cold water, An object of the present invention is to provide a cooling device for circulating chilled water in an air conditioner, which can prevent scattered cold water, contamination of the cold water, and excessive consumption of the cold water.

[0005]

[Means for Solving the Problems]

 The cooling device for circulating chilled water in an air conditioner according to the invention of claim 1 includes a housing, a radiator, and a blower. The radiator is air-cooled by the blower to cool chilled water passing through the radiator. For circulating chilled water in an air conditioner, wherein upper and lower storage chambers are provided above and below the housing, respectively, and an upper plate end of the upper storage chamber is provided. A level check pipe for observing the amount of chilled water, and a connecting pipe communicating with a return pipe for circulating chilled water from the air conditioner and a supply pipe for adding chilled water are provided at the upper end of the side plate. At the lower end of the side plate of the lower storage chamber, a forward connection pipe for supplying cooling water to the air conditioner and a drain pipe for discharging surplus cooling water are provided. Upper and lower communicate with the storage room A chilled water communication passage having a through-hole is provided side by side at predetermined intervals in the left-right direction, and a radiator having a radiator plate is provided on an outer peripheral surface of the chilled water communication passage. A radiator is air-cooled by the blower while the chiller stored in the upper storage chamber flows down to the lower storage chamber via the chilled water communication path by its own weight while disposing a blower opposed thereto. It is something to do.

According to a second aspect of the present invention, in the cooling device for circulating chilled water in the air conditioner according to the first aspect, the housing has a housing chamber in which the radiator having an opening at the front and rear central portions is disposed. A mesh plate having small holes communicating with the outside air is provided at the rear opening of the accommodation room, and the radiators arranged in the accommodation room are horizontally spaced apart from each other by a predetermined distance. A plurality of chilled water communication passages respectively communicating with the through holes provided in the radiating plate in the vertical direction between the radiating plates are arranged at predetermined intervals in the left-right direction, and are provided at the upper end and the lower end of the chilled water communication passage. The outer peripheral surface of each radiator plate and the inner surface of the housing are fixedly adhered to each other, and an upper storage chamber and a lower storage chamber communicating with the through-holes are provided. Blower that cools the vessel Is provided.

According to a third aspect of the present invention, in the cooling device for circulating chilled water in the air conditioner according to the first aspect, the housing includes an upper end portion of a chilled water communication passage of a radiator disposed between the left and right side plates, and Upper and lower separation chambers are formed above and below the heatsinks provided horizontally at the lower end, and the upper and lower separation chambers are formed by airtightly fixing the open ends. A blower is mounted on the front side of a radiator having a radiator plate continuously formed in a meandering shape between the provided cold water communication passages.

[0008]

[Embodiment of the invention]

 Hereinafter, a cooling device for circulating chilled water in an air conditioner according to an embodiment of the present invention will be described. 1 to 3 show a cooling device for circulating chilled water in an air conditioner according to a first embodiment of the present invention. In the drawings, reference numeral 1 denotes a housing of the cooling device, and the housing 1 has a rectangular box as a whole. Openings 2a and 2b are formed in the center of the front plate 1a and the back plate 1b, respectively, and a housing chamber 3 in which a radiator 11 to be described later is provided is provided inside the openings. I have. Reference numeral 4 denotes an upper storage chamber formed above the inside of the housing 1. A level check pipe 5 for observing the amount of cold water is attached to an end of the upper surface plate 1c. It can be observed from outside. Reference numeral 6 denotes a connecting pipe protruding above the left side plate 1d, which is connected to a return pipe 21 for returning the cold water heat-exchanged by the air conditioner 20, and for guiding the cold water into the upper storage chamber 4. You. Reference numeral 7 denotes a supply pipe used for replenishing the upper storage chamber 4 with cold water, and 8 denotes a lower storage chamber formed below the inside of the housing 1 and has front ends at the lower ends of the left and right plates 1d and 1e. An outgoing connection pipe 9 connected to an outgoing pipe 22 piped to the air conditioner 20 for heat exchange and a drain pipe 10 for discharging excess cooling water are provided.

The radiator 11 is a tubular member having a communication passage 13 a communicating with the through hole 12 between a plurality of radiating plates 12 a to 12 d having through holes 12 horizontally arranged at predetermined intervals. The rectangular tubular portion 13 is connected in the vertical direction and is arranged side by side in the left-right direction. Reference numeral 14 denotes a fan of the blower, which is fixed to a support member 14a attached to the outer surface of the housing 1 so as to face the front opening 2a of the housing 1.

The radiator plates 12 a and 12 d provided at the upper and lower ends of the radiator 11 have their outer peripheral surfaces tightly fixed to the inner peripheral surface of the housing 1 by means such as welding, so that The bottom plate and the top plate of the storage chamber 4 and the lower storage chamber 8 are configured. Reference numeral 15 denotes a mesh plate provided in the rear plate opening 2b of the housing 1.

According to the cooling device for circulating chilled water in the air conditioner according to the present invention configured as described above, as shown in FIG. 3, a blower, an evaporator, and an operation device for blowing conditioned air into a room are provided. The cold water return pipe 21 of the air conditioner 20 having the control panel built therein and the connecting pipe 6 of the upper storage chamber 4, and the cooling water forward pipe 22 of the air conditioner 20 and the forward connecting pipe 9 of the lower storage chamber 8 are respectively connected. By connecting the switch and turning on the switch on the operation control panel of the air conditioner 20 to start the air conditioner 20, the cooling water is supplied from the lower storage chamber 8 by the pump 23 provided in the middle of the forward pipe 22. The heat exchange is conducted to the pipe for heat exchange in the heat exchanger 20, and the cold water after the heat exchange is returned to the upper storage chamber 4 through the return pipe 21 as shown by the arrow A.

The cold water returned to the upper storage chamber 4 flows under its own weight through a plurality of through-holes 12 formed in the bottom plate and down the communication passage 13 a of the rectangular tubular portion 13 of the radiator 11. The air is cooled by the heat radiation from the square tubular portion 13 and the heat radiating plates 12a to 12d, and is cooled by air cooling by the blower 14, and is stored in the lower storage chamber 8 as cooling water, and is used again in the air conditioner 20 as circulating cooling water. Is done.

Therefore, according to this embodiment, during the cooling process of the circulating chilled water of the air conditioner, the chilled water does not come into direct contact with the outside air, and there is no possibility that the dirty air of the outside air is mixed into the chilled water.

FIGS. 3 to 5 show a cooling device for circulating chilled water in an air conditioner according to a second embodiment of the present invention. In this embodiment, the assembling of the housing of the cooling device is facilitated. The upper storage chamber 4 and the lower storage chamber 8 are divided and the radiator 30 is disposed between the left and right plates 1d and 1e. Things. In the radiator 30, a plurality of communication passages are provided in which cylindrical members 32 having the same height as the side plates 1d and 1e are juxtaposed in the left-right direction at equal intervals, and communicate with the cylindrical members 32 in the vertical direction. 33, and a heat radiating plate 34 is continuously arranged between the cylindrical members 32 in a meandering manner. As the heat radiating plates 34a and 34b disposed at the upper and lower ends of the cylindrical member 32, thick horizontal plates are used, and constitute the bottom plate of the upper storage chamber 4 and the top plate of the lower storage chamber 8. ing.

The heat dissipation plates 34 a and 34 b made of the horizontal plates are formed with through holes 35 communicating with the communication passages 33 of the tubular member 32, respectively. 36 is a blower mounted on the front side of the left and right plates 1d, 1e, and 37 is a support member for mounting the blower 36. The configuration other than the above is the same as that of the cooling device of the first embodiment.

In assembling the cooling device according to the second embodiment configured as described above, the upper storage chamber 4 and the lower storage chamber 8 that are formed separately are divided into the upper end surface of the heat sink 34a and the lower end surface of the heat sink 34b. Each can be fixed in a sealed state by means such as welding, so that the assembling work can be extremely easily performed.

The above-described embodiment is merely an example, and various changes and modifications can be made without departing from the scope of the present invention.

[0018]

[Effect of the invention]

 As described above, the cooling device for circulating chilled water in the air conditioner according to the present invention includes a housing, a radiator, and a blower, and the radiator is air-cooled by the blower to cool chilled water passing through the radiator, A cooling device for circulating chilled water in an air conditioner in which the cooling water is circulated to a central air conditioner, wherein upper and lower storage chambers are provided above and below the housing, respectively. A level check pipe for observing the amount of cold water is provided at the end of the upper plate, and a connecting pipe communicating with the return pipe of circulating cold water from the air conditioner and a supply pipe for supplying cold water are provided at the upper end of the side plate. In addition, a forward connection pipe for supplying cooling water to the air conditioner and a drain pipe for discharging excess cooling water are provided at a lower end of a side plate of the lower storage chamber, and a drain pipe for discharging excess cooling water is provided between the upper and lower storage chambers. Above and below A tubular member having a communication passage communicating with the storage chamber is arranged side by side at predetermined intervals in the left-right direction, and a radiator having a radiator plate is provided on an outer peripheral surface of the tubular member. A blower is disposed opposite to the member and the radiator plate, and the radiator is air-cooled and cooled by the blower while the cold water stored in the upper storage chamber flows down to the lower storage chamber via the communication path by its own weight. Since the configuration is such that water is used, the following effects are obtained.

That is, since the air from the blower is not forcibly blown to the cold water, the surface of the cold water is wavy and becomes fine mist-like water droplets, which adheres to the surfaces of the blades of the blower, and the water droplets form It does not scatter outside and cause the surroundings to be wet or cause noise. Since the cold water storage chamber is sealed, there is no need to suck in and blow out the outside dirty air containing a large amount of dust on the cold water surface, and no bacteria are cultured in the water tank. . Therefore, the circulating chilled water is not mixed with pathogenic bacteria, does not cause respiratory illness, and does not cause troubles such as clogging of the circulating chilled water piping. Cold water consumption is low and cold water can be easily replenished if desired, making the operation very easy.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a cooling device for circulating chilled water in an air conditioner according to a first embodiment of the present invention.

FIG. 2 is an overall perspective view showing an assembled state of FIG. 1;

FIG. 3 is an explanatory view showing a use state of FIG. 1;

FIG. 4 is an exploded perspective view of the cooling device for circulating chilled water in the air conditioner according to the second embodiment of the present invention.

FIG. 5 is an explanatory view showing an assembled state of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 1a Front plate 1b Back plate 2a, 2b Opening 3 Accommodation room 4 Upper storage room 5 Level check tube 6 Connecting tube 7 Supply tube 8 Lower storage room 9 Outbound connection tube 10 Drainage tube 11 Radiator 12 Through hole 12a- 12d Heat radiating plate 13 Square cylindrical portion (cylindrical member) 13a Communication path 14 Blower 20 Air conditioner 21 Return pipe 22 Outbound connection pipe 23 Pump

Claims (3)

[Utility model registration claims] 1. An air comprising a housing, a radiator, and a blower, wherein the blower cools the radiator by air to cool cold water passing through the radiator, and circulates the cooling water to a central air conditioner. A cooling device for circulating chilled water in a harmony machine, wherein upper and lower storage chambers are provided above and below the housing, respectively, and a level check pipe for observing the amount of chilled water is provided at an end of an upper plate of the upper storage chamber, A connecting pipe communicating with a return pipe of circulating cold water from the air conditioner and a supply pipe for supplying cold water are provided at an upper end of the side plate, and the air conditioning is provided at a lower end of the side plate of the lower storage chamber. A forward connection pipe for supplying cooling water to the machine and a drain pipe for discharging excess cooling water, and the upper and lower storage chambers are provided between the upper and lower storage chambers.
A tubular member having a communication passage communicating with the lower storage chamber is arranged in a horizontal direction at a predetermined interval, and a radiator having a radiator plate is provided on an outer peripheral surface of the tubular member. A blower is disposed opposite to the member and the radiator plate, and the radiator is air-cooled by the blower while the cold water stored in the upper storage chamber flows down to the lower storage chamber via the communication path by its own weight. A cooling device for circulating chilled water in an air conditioner, characterized in that: 2. The housing has an accommodation room in which the radiator is disposed with an opening at the center of the front surface and the back surface, and a mesh plate having a small hole communicating with the outside air is provided at an opening at the back surface of the accommodation room. A radiator disposed in the storage chamber, wherein the radiator is separated from the radiator by a predetermined distance and communicates with a through hole provided in the radiator in a vertical direction between a plurality of radiators disposed horizontally. A plurality of tubular members having a predetermined interval are arranged in the left-right direction at predetermined intervals, and the outer peripheral surface of each heat radiating plate disposed at the upper end and the lower end of the tubular member and the inner surface of the housing are fixed in close contact with each other. An upper storage chamber and a lower storage chamber communicating with the communication passage of the tubular member through the through hole of the radiator plate, and a blower for air-cooling the radiator at the opening on the front surface of the housing. 2. The sky according to claim 1, wherein the sky is provided. Cooling device for circulating chilled water in an air conditioner 3. The housing has hermetically sealed open ends above and below respective heat radiating plates horizontally provided at upper and lower ends of a tubular member of a radiator disposed between left and right side plates. A radiator having an upper storage chamber and a lower storage chamber formed vertically separated from each other and formed in a meandering manner between tubular members arranged in parallel between the left and right side plates. 2. A cooling device for circulating chilled water in an air conditioner according to claim 1, wherein a blower is mounted on the front side of the air conditioner.