KR102581027B1 - Anti-freeze type cold water production apparatus - Google Patents

Abstract

The present invention relates to an anti-icing cold water generator. More specifically, it can effectively produce cold water through heat exchange with outdoor air in winter, and stable production of cold water is possible because freezing is not generated by low-temperature outdoor air, and the temperature is uniform. This relates to an anti-freeze cold water generator that can quickly produce and store cold water.
An anti-icing cold water generator according to the present invention includes a cold water storage unit in which cold water is stored; And a cold water generator that cools the water in the cold water storage unit, wherein the cold water generator is provided with an external air receiving chamber that accommodates external air, and is divided from the external air receiving chamber and is provided with a cold water generating chamber that accommodates water. cold water production tank; and an external air heat exchange means that performs heat exchange between the external air contained in the external air receiving chamber and the water contained in the cold water generating chamber.

Description

Anti-freezing cold water generator {ANTI-FREEZE TYPE COLD WATER PRODUCTION APPARATUS}

The present invention relates to an anti-icing cold water generator. More specifically, it can effectively produce cold water through heat exchange with outdoor air in winter, and stable production of cold water is possible because freezing is not generated by low-temperature outdoor air, and the temperature is uniform. This relates to an anti-freeze cold water generator that can quickly produce and store cold water.

In general, agricultural crops are grown in the open field by selecting crops suited to the soil, climatic conditions, season, etc., but the facility horticulture industry is gradually expanding as a way to reduce uncertainty due to abnormal temperatures and meet the year-round demand of consumers. there is.

In facility horticulture, crops are planted in a cultivation area constructed inside a greenhouse such as a glass greenhouse or greenhouse, and the cultivation process is performed while managing the environment to maintain conditions such as temperature, humidity, and CO ₂ that are ideal for crop cultivation.

Greenhouse cultivation is a way to maximize growth and requires not only temperature conditions but also dehumidification that can control excessive humidity conditions to an appropriate level (60-75%) due to the transpiration of crops. Especially in the middle of the winter, the temperature inside the greenhouse sometimes rises excessively due to excessive inflow of solar radiant energy, causing adverse effects on crop cultivation. In particular, when the temperature reaches above the normal growth limit for each crop (26 ^o C for strawberries), it is common to maintain the temperature inside the greenhouse at an appropriate level through ventilation, even at the risk of the influence of cold outside air.

In this case, the sudden influx of cold outside air due to ventilation in the thermal environment maintained at a high temperature in the existing greenhouse may cause stress to the crops, which may have a negative effect on growth, and the application of the frequent ventilation control described above may cause the high concentration of air supplied. _CO2 (1000-1400ppm) is discharged and wasted through ventilation before plants can absorb it, causing a major obstacle to improving crop productivity in the winter.

Therefore, in greenhouse cultivation such as smart farms, in addition to preparing measures to supply cooling in the summer due to climate warming, in order to create a greenhouse thermal environment that does not require excessive ventilation control during the day even in winter, effective cooling and heat (cold air) required for efficient cooling or dehumidification control are needed. A production plan is required. In other words, there is a need for a method to effectively produce cold water used as a heat exchange medium to control (remove) the humidity of greenhouse air.

However, the current production of cold water for controlling the thermal environment of greenhouses in the winter has limitations due to the following problems.

First, cold water production equipment using outdoor air in winter has the disadvantage of not being able to produce cold water quickly. To be more specific, cold heat production using cold outdoor air (natural cold air) in the winter can be secured relatively easily without requiring energy compared to the summer, but it is possible to produce cold heat using cold outdoor air (natural cold air) in the winter through simple heat exchange of the water filled in the storage tank with the cold outdoor air. The production of cold heat (cold water) has the disadvantage of taking a relatively long time compared to methods using forced convection. In particular, in situations where a sufficient amount of cold water is not prepared for use in the greenhouse, or when cold heat is exhausted before the point when cold heat utilization is needed during the day, it is necessary to quickly obtain the cold heat necessary for greenhouse control from the natural cold air of the cold outside air. The situation is difficult.

Second, the production of cold water using natural outdoor air (cold air) in the winter has a limitation in that it is difficult to produce cold water and cannot obtain cold water of uniform quality when the temperature falls below the freezing point. To be more specific, in the case of cold heat (cold water) production using natural cold air, ice accompanied by a phase change (freezing) may be formed inside the storage tank depending on the temperature difference with the outside air. In this case, ice inside the storage tank and There is a disadvantage in that it is difficult to control uniform cold heat supply due to uneven distribution of cold water. In order to achieve rapid and precise cold and heat control, it is necessary to establish a system capable of producing uniform cold water and a control method thereof. When considering a method of producing cold heat through effective heat exchange with natural cold air, it is desirable for the outside of the storage tank to be exposed to the atmosphere. However, in this case, the disadvantage is that the produced cold heat is exchanged with the outside air before supplying the greenhouse cold heat, resulting in a large loss. For this purpose, if the outside of the storage tank is insulated, the loss of cold heat can be minimized, but it takes a very long time to produce cold heat through simple heat exchange, and in addition, due to the freezing (ice) formed at the top of the storage tank, the water and Since heat exchange between the outside air and the upper part of the storage tank is not possible (ice acts as thermal resistance), there is a limit to effective cold heat production.

Korean Patent Publication No. 10-2021-0072611 “Greenhouse cooling system applicable to desert climate” Korean Patent Publication No. 10-2018-0040954 “Cold water generator” Korean Patent Publication No. 10-2019-0093401 “Cold water and hot water generating device”

The present invention was proposed in light of the above contents, and provides an anti-icing cold water generator that can effectively produce cold water through heat exchange with outdoor air in winter and can produce cold water stably by preventing freezing due to low-temperature outdoor air. It has a purpose.

Another object of the present invention is to provide an anti-icing cold water generator that can quickly produce and store cold water at a uniform temperature through heat exchange with outdoor air in winter.

In order to achieve the above object, an anti-icing cold water generator according to the present invention includes a cold water storage unit in which cold water is stored; And a cold water generator that cools the water in the cold water storage unit, wherein the cold water generator is provided with an external air receiving chamber that accommodates external air, and is divided from the external air receiving chamber and is provided with a cold water generating chamber that accommodates water. cold water production tank; and an external air heat exchange means that performs heat exchange between the external air contained in the external air receiving chamber and the water contained in the cold water generating chamber.

The anti-icing cold water generator according to the present invention includes a cold water production water supply line connected to supply water from the cold water storage unit to the cold water production chamber; a cold water discharge line connected so that cold water generated via the cold water generation chamber is recovered from the cold water storage unit; and a cold water production pump connected to the cold water production water supply line or the cold water discharge line.

The external air heat exchange means is disposed on one side in the external air receiving chamber and on the other side in the cold water generating chamber to transfer the cold air of the external air to the water filled in the cold water generating chamber by evaporation and condensation of the working fluid without external power. It may be composed of a vibrating heat pipe.

Meanwhile, the anti-icing cold water generator according to the present invention includes a cold water production room temperature sensing unit that detects the temperature of the cold water production room; And it may further include a cold water storage unit temperature sensing unit that detects the temperature of the cold water storage unit.

And, based on the signals detected by the cold water storage unit temperature detection unit and the cold water production room temperature detection unit, the operation of the cold water production pump is controlled so that the cold water temperature of the cold water storage unit is a set temperature, wherein the cold water production It may further include a cold water production control unit that operates the cold water production pump to perform a control operation to prevent freezing in the cold water production chamber when the temperature detected by the room temperature detection unit is below the set water temperature.

The anti-icing cold water generator according to the present invention includes a cold water generator case formed to surround the outside of the external air receiving chamber; And external air is introduced into the external air receiving chamber under the control of the cold water generation control unit so that the cold water temperature of the cold water storage unit becomes a set temperature based on the signals detected by the cold water storage unit temperature detection unit and the cold water production room temperature detection unit. It may be configured to include an external air blowing fan operated to blow air.

In addition, the anti-icing cold water generator according to the present invention is composed of a plurality of vibrating heat pipes and is installed in the cold water production tank by a heat exchange means installation part, wherein the heat exchange means installation part is a heat exchange means installation perforated in the upper plate of the cold water generation tank. It may include a hole and a pipe installation plate installed in the heat exchange means installation hole and having a plurality of pipe insertion slits through which the vibrating heat pipe is inserted into the plate-shaped member.

Meanwhile, the anti-icing cold water generator according to the present invention further includes an external temperature detection unit that detects the temperature of the external air receiving chamber, and the cold water production control unit detects the external air temperature detection unit and the cold water production room temperature detection unit. If the temperature difference detected based on the detection signal is smaller than a set range, it may be configured to perform a control operation to stop the operation of the external air blowing fan.

In addition, the anti-icing cold water generator according to the present invention may have a cold water path guide partition wall formed so that the water flowing into the cold water production chamber is discharged while forming a 'U' shaped flow path.

According to the anti-icing cold water generator according to the present invention, cold water can be effectively produced through heat exchange with outdoor air in winter without additional energy using an external air heat exchange means such as a vibrating heat pipe, and the external air in winter is below freezing point. When descending, the water from the water storage unit is circulated to the water production unit, which prevents freezing and allows stable production of cold water. It also has the effect of quickly producing and storing cold water at a uniform temperature through heat exchange with the outside air in the winter. .

1 is an overall configuration diagram for explaining the technical idea of the anti-icing cold water generator according to the first embodiment of the present invention;
Figure 2 is a main configuration diagram showing the anti-icing cold water generator according to the first embodiment of the present invention;
Figure 3 is an overall perspective view showing the anti-icing cold water generator according to the first embodiment of the present invention;
Figure 4 is a partial perspective view showing the anti-icing cold water generator according to the first embodiment of the present invention;
Figure 5 is a perspective view for explaining the cold water generator of the anti-icing cold water generator according to the first embodiment of the present invention;
Figure 6 is an exploded perspective view showing an anti-icing cold water generator according to the first embodiment of the present invention;
Figure 7 is a perspective view showing the vibrating heat pipe of the anti-icing cold water generator according to the first embodiment of the present invention;
Figure 8 is a configuration diagram for explaining the operation of the anti-icing cold water generator according to the first embodiment of the present invention;
Figure 9 is a configuration diagram showing an anti-icing cold water generator according to a second embodiment of the present invention;
Figure 10 is a configuration diagram showing an anti-icing cold water generator according to a third embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail based on the accompanying drawings, FIGS. 1 to 10, and the same reference numerals will be given to the same components in FIGS. 1 to 10.

Meanwhile, in each drawing, detailed descriptions of the configuration and its operations and effects that can be easily understood by a person with ordinary knowledge in the field from general techniques are simplified or omitted. In addition, since the present invention is characterized by an anti-icing cold water generating device, the related parts will be shown and explained, and the description of the remaining parts will be simplified or omitted.

Figure 1 is an overall configuration diagram for explaining the technical idea of the anti-icing cold water generating device according to the first embodiment of the present invention, and Figure 2 is a main part showing the anti-icing cold water generating device according to the first embodiment of the present invention. It is a configuration diagram that shows the main components simplified with symbols. Figure 3 is an overall perspective view showing the anti-icing cold water generator according to the first embodiment of the present invention, Figure 4 is a main perspective view showing the anti-icing cold water generator according to the first embodiment of the present invention, and Figure 5 is the main part of the cold water generator according to the first embodiment of the present invention. A perspective view for explaining the cold water generator of the anti-icing cold water generator according to the first embodiment of the present invention, Figure 6 is an exploded perspective view showing the anti-freeze cold water generator according to the first embodiment of the present invention, and Figure 7 is the present invention. A perspective view showing the vibrating heat pipe of the anti-icing cold water generator according to the first embodiment of the invention, showing one vibrating heat pipe.

Referring to Figures 1 to 7, the anti-icing cold water generator 700 according to the first embodiment of the present invention can effectively produce cold water through heat exchange with outdoor air in winter and prevent freezing even when the outdoor temperature falls below the freezing point. It is configured to prevent the generation of cold water and enable stable production of cold water, and is composed of a cold water storage unit 710 that stores cold water, and a cold water generation unit 720 that cools the water in the cold water storage unit 710.

The cold water storage unit 710 is a storage container in which water is stored and can be configured in various ways without any particular restrictions on structure or form as long as it has a space that can store a certain amount of water.

For example, the cold water storage unit 710 is comprised of a cylindrical storage tank, and it is preferable that an insulating layer (not shown) is formed on the outer surface of the cold water storage unit 710 to maintain stable cooling and heat. And the cold water storage unit 710 can be installed underground for more stable insulation.

On the other hand, the cold water generator 720 is a cold water generator 721 in which a cooling process is performed to lower the temperature while the water flowing in from the cold water storage portion 710 stays, and the water staying in the cold water generator 721. It is provided with an external air heat exchange means (722) that performs a cooling function.

The cold water production tank 721 is provided with an external air receiving chamber 723 that accommodates external air, and a cold water generating chamber 724 that is separated from the external air receiving chamber 723 and accommodates water.

The cold water generation tank 721 can be configured without any particular restrictions on its shape or structure as long as a part of the external air heat exchange means 722 is exposed to the external air and has a cold water production chamber.

For example, the cold water production tank 721 is formed in the shape of a container consisting of a bottom plate 7211, a side plate 7212, and a top plate 7213 to form a receiving space where water stays, and an external air receiving chamber 723 is provided at the top. It has a structure in which a cold water generating unit case 725 is formed to surround the outside, and a support 726 placed on top of the cold water storage unit 710 is provided at the lower part of the bottom plate 7211.

The external air heat exchange means 722 is a component that performs heat exchange between the external air contained in the external air receiving chamber 723 and the water contained in the cold water generating chamber 724.

It is a component that heats the fluid in the water receiving chamber 724 through a heat exchange process. There is no particular limitation as long as the heat exchange efficiency is excellent, but in this embodiment, heat storage (storing internal heat) can be performed through heat transfer at a high heat flux. It consists of a vibrating heat pipe 722a.

The vibrating heat pipe 722a is a component that performs heat exchange between the external air contained in the external air receiving chamber 723 and the water contained in the cold water cooling chamber 724, and is used to heat the outside by evaporation and condensation of the working fluid without external power. One side is exposed to the external air receiving chamber 723 and the other side is immersed in the cold water generating chamber 724 to transfer the heat of the air to the water.

As is well known, the vibrating heat pipe 722a is a device that injects a working fluid into a sealed interior and then evacuates it, and transfers heat without a separate external power through evaporation and condensation of the working fluid. Here, the working fluid generally refers to a refrigerant. In a heat engine, the fluid that receives the supply of heat energy expands to do mechanical work, and the remaining energy is released to return to its original state and then receive the heat supply again. In this way, power is generated through one cycle in which the fluid undergoes several state changes. In addition, vibrating heat pipes are widely used as products with excellent heat exchange characteristics when the minimum operating temperature difference between the heat exchange target fluid (water in the cold water production chamber and external air in the external air receiving chamber) is more than 7℃, but are not limited to this.

Meanwhile, the anti-icing cold water generator according to the first embodiment of the present invention drills a plurality of pipe insertion holes according to the spacing in the upper plate 7213 of the cold water production tank 721 and inserts a vibrating heat pipe (vibrating heat pipe) into these pipe insertion holes. It can also be installed by inserting each pipeline of 722a), but in this embodiment, the external air heat exchange means 722 consisting of a plurality of vibrating heat pipes 722a can be quickly and easily installed in the cold water production tank 721. A heat exchange means installation part (727) is provided so that the heat exchange means can be installed.

The heat exchange means installation part 727 includes a heat exchange means installation hole 7271 drilled in the upper plate 7213 of the cold water production tank 721 for installation of the external air heat exchange means 722, and this heat exchange means installation hole ( It is equipped with a pipe installation plate (7272) installed on 7271).

The pipe installation plate 7272 is formed with a plurality of pipe insertion slits 7272a into which the vibrating heat pipe 722a is inserted into the plate-shaped member, and a fastening hole 7272b for fastening the fastening screw at the edge of the plate-shaped member. there is.

Then, the vibrating heat pipe 722a is inserted into the pipe insertion slit 7272a of the pipe installation plate 7272 and is fixed by adhesion or welding with an adhesive. After the vibrating heat pipe 722a is fixed in this way, the pipe insertion slit 7272a can be airtightly attached by inserting an airtight member or can be attached by covering it with an airtight pad.

The anti-icing cold water generator according to the first embodiment of the present invention includes a cold water production water supply line 730 connected to supply water from the cold water storage unit 710 to the cold water production chamber 724, and a cold water production chamber ( A cold water discharge line 740 connected to recover the cold water generated via 724) to the cold water storage unit 710, and a cold water production pump 750 connected to the cold water production water supply line (or cold water discharge line). Equipped with

In addition, a check valve 732 may be installed in the cold water production water supply line 730 to prevent backflow, and a discharge control valve (732) may be installed in the cold water discharge line 740 to prevent the water contained in the cold water production chamber 724 from draining. 742) can be installed. Here, the discharge control valve 742 is preferably configured as an electric automatic control valve that automatically opens and closes under the control of the cold water production control unit, which will be described later.

Meanwhile, the anti-icing cold water generator according to the first embodiment of the present invention includes a cold water production room temperature sensing unit 760 that detects the temperature of the cold water production chamber, and a cold water storage unit that detects the temperature of the cold water storage unit 710. A temperature sensing unit 770 is configured. Here, the cold water production room temperature detection unit 760 and the cold water storage temperature detection unit 770 are composed of temperature sensors.

In addition, the anti-icing cold water generator according to the first embodiment of the present invention detects the cold water storage unit 710 based on the signal detected by the cold water storage unit temperature detection unit 770 and the cold water production room temperature detection unit 760. A cold water generation control unit 780 is configured to control the operation of the cold water generation pump 750 so that the cold water temperature is at a set temperature.

The cold water generation control unit 780 performs a control operation to prevent freezing of the cold water generation chamber 724 by operating the cold water generation pump 750 when the temperature detected by the cold water generation chamber temperature detection unit 760 is below the freezing point of water. It is configured to do so.

Meanwhile, reference numeral 791 in FIG. 1 is a cold water supply line that supplies cold water contained in the cold water storage unit 710 to the point of use, and 792 is a cold water recovery line through which cold water whose temperature has risen through a heat exchange process at the point of use is recovered. , 793 is a supplementary water line for supplying supplemental water to the cold water storage unit 710.

The above-mentioned use area may be a complex thermal environment control device (not shown) that cools the air supplied to the greenhouse through heat exchange with the air or removes humidity through a condensation process.

Here, the complex thermal environment control device is without particular limitation as long as it is a device that can perform the cooling function of the incoming air for cooling the greenhouse, the removal of moisture from the incoming air, or the warming function of the incoming air for heating the greenhouse. As applicable, the cold water in the cold water storage unit 710 is used to cool the air and remove moisture.

In addition, the above-described external air receiving chamber 723 is composed of a breathable space partitioned by the cold water generator case 725 in the present embodiment, but even without a separate case, one side of the vibrating heat pipe 722a is connected to the external air. It is a concept that includes a structure that allows contact.

Hereinafter, the operation of the anti-icing cold water generator according to the first embodiment of the present invention will be briefly described.

Figure 8 is a configuration diagram to explain the operation of the anti-icing cold water generator according to the first embodiment of the present invention, and the main components are simplified with symbols and shown.

Referring to FIG. 8, the anti-icing cold water generating device according to the first embodiment of the present invention is, as described above, a conventional cold water producing device consisting of a single refrigerant tank, which roughly consists of a cold water storage unit 710 and a cold water generating unit 720. ) is divided into two spaces, and the lower cold water storage unit 710 functions as an insulated cold storage tank space and provides a storage function to store cold water at target temperature conditions without heat loss. The cold water generating unit 720 provided at the upper part of the unit 710 performs the function of generating cold water of the target temperature, which is stored in the cold water storage unit 710 at the lower part.

To explain the cold water generation process in more detail in the winter when the temperature drops, a detection signal is applied from the cold water storage temperature detection unit 770, and the temperature of the water in the cold water storage unit 710 detected by the cold water generation control unit 780 is increased. In the case of relatively high temperature cold water in the set temperature range (e.g. 15 to 18°C, where 'high temperature' refers to a relative temperature compared to low temperature cold water described later), cold water is generated under the control of the cold water generation control unit 780. As the pump 750 operates for a set time, it flows the above-mentioned high-temperature cold water (e.g., 15 to 18°C) into the cold water production chamber 724 through the cold water production water supply line 730 at a set flow rate. .

When high-temperature cold water is introduced in this way, one side of the vibrating heat pipe 722a is exposed to the cold outdoor air of the external air receiving chamber 723, and the other side is immersed in the cold water generating chamber 724, so that the vibrating heat pipe 722a is not affected by the action of the known vibrating heat pipe. As a result, heat exchange between the cold heat of the outside air and the high-temperature cold water in the cold water production chamber 724 is achieved through evaporation and condensation of the working fluid without external power.

Through the heat exchange process of the vibrating heat pipe 722a as described above, the high-temperature cold water contained in the cold water generation chamber 724 is low-temperature cold water of a temperature in a set range (e.g., 5 to 7°C) (here, 'low temperature' is a relative concept). When cooled to a low temperature), the cold water production pump 750 is re-operated for a set time under the control of the cold water production control unit 780 to introduce new high-temperature cold water through the cold water production water supply line 730. And due to the reaction, the low-temperature cold water in the cold water production chamber 724 flows out into the cold water storage unit 710 through the cold water discharge line 740. At this time, when the cold water discharge line 740 is equipped with a discharge control valve 742, an opening operation is performed by the cold water production control unit 780.

Meanwhile, during the cold water production process as described above, if the temperature of the outside air is very low (e.g., -10°C), freezing in the cold water production chamber 724 may occur. In other words, freezing occurs on the part of the vibrating heat pipe immersed in water, and in this case, the ice on the surface acts as thermal resistance, preventing smooth heat exchange, causing the ice to gradually thicken rather than lowering the temperature of the cold water. This can happen. However, the anti-icing cold water generator according to the present invention operates the cold water production pump 750 when the temperature detected from the signal detected by the cold water production room temperature detection unit 760 is close to the freezing point, thereby generating a relatively high temperature. Freezing can be prevented by circulating the water in the cold water storage unit 710 to the cold water production chamber 724. For example, when the cooling temperature of the cold water generation chamber 724 reaches 5°C, low-temperature cold water is discharged to the cold water storage unit 710, and high-temperature cold water from the upper part of the cold water storage unit 710 is introduced to force the cold water with the outside air again. By repeating the production of cold water with a set temperature through convection heat exchange, ultimately no freezing occurs and the cold water can be stored at a uniform temperature in the cold water storage unit.

Hereinafter, another embodiment according to the present invention will be described, but detailed description of components similar to those shown in the above-described first embodiment will be omitted and description will focus on components having differences. In addition, in other embodiments below, any structure that can be adopted among the components shown in the first embodiment or the components shown in different embodiments may be selectively applied, and detailed descriptions or illustrations in the drawings are omitted.

Figure 9 is a main configuration diagram showing the anti-icing cold water generator according to the second embodiment of the present invention, and the main components are simplified with symbols and the like.

Referring to Figure 9, the anti-icing cold water generator according to the second embodiment of the present invention includes a cold water storage unit 710 in which cold water is stored, similar to the first embodiment described above, and the cold water storage unit 710. Via the cold water production unit 720, which cools the water, the cold water production water supply line 730, which is connected to supply water from the cold water storage unit 710 to the cold water production room 724, and the cold water production room 724. A cold water discharge line 740 connected to recover the generated cold water to the cold water storage unit 710, a cold water production pump 750 connected to the cold water production water supply line, and a cold water production room temperature that detects the temperature of the cold water production room. A temperature sensing unit 760 and a cold water storage temperature sensing unit 770 are configured to detect the temperature of the cold water storage unit 710, and an external air blowing fan 795 is further configured to generate cold water more quickly.

The external air blowing fan 795 operates the cold water generation control unit 780 so that the cold water temperature in the cold water storage unit becomes the set temperature based on the signal detected by the cold water storage unit temperature detection unit 760 and the cold water production room temperature detection unit 770. It operates to introduce external air into the external air receiving chamber 723 under the control of .

The external air blowing fan 795 is installed in the opening formed in the cold water generator case 725, and a blowing fan used in the air conditioning field can be installed.

The cold water generator 720 further includes an outdoor temperature detection unit 796 comprised of a temperature sensor to detect the temperature of the external air receiving chamber 723, that is, the temperature of the external air.

And the cold water production control unit 780 stops the operation of the external air blowing fan 795 when the temperature difference detected by the detection signal by the external temperature detection unit 796 and the cold water production room temperature detection unit 770 is lower than the set range. It is configured to perform the commanded control operation.

Meanwhile, the anti-icing cold water generator according to the second embodiment of the present invention, like the first embodiment described above, can effectively produce cold water through heat exchange with outdoor air in winter, and freezing occurs when the temperature of outdoor air is very low. Since this does not occur, cold water can be produced stably.

In particular, the anti-icing cold water generator according to the second embodiment of the present invention can reduce energy waste due to unnecessary operation of the external air blowing fan 795 in the cold water production process. For example, the general vibrating heat pipe 722a performs normal heat exchange when the minimum operating temperature difference is 7°C or more, so the heat exchange target fluid (cold water generation) detected by the outside temperature detection unit 796 and the cold water production room temperature detection unit 760 If the temperature difference between the water in the room and the external air in the external air receiving room is less than 7℃, the vibrating heat pipe 722a does not operate normally, so the external air blowing fan 795 is installed under the control of the cold water generation control unit 780. You can prevent energy waste by stopping the operation.

Figure 10 is a main configuration diagram showing the anti-icing cold water generator according to the third embodiment of the present invention, and the main components are simplified with symbols and the like.

Referring to Figure 10, the anti-icing cold water generator according to the second embodiment of the present invention, similar to the above-described second embodiment, includes a cold water storage unit 710, a cold water generator 720, and a water supply line for cold water production. (730), a cold water discharge line (740), a cold water production pump (750), a cold water production room temperature detection unit (760), a cold water storage temperature detection unit (770), and an external air blowing fan (795). When the water contained in the cold water production chamber 724 is continuously cooled while operating the cold water production pump 750, a cold water path guide partition 729 is configured to improve cooling efficiency.

The cold water path guide partition 729 is configured in the form of a partition with a flow port inside the cold water generation tank 721 so that the water flowing into the cold water generation chamber 724 is discharged while forming a 'U' shaped flow path.

Meanwhile, the anti-icing cold water generator according to the third embodiment of the present invention not only exhibits a synergistic effect similar to the above-described second embodiment, but also has a 'U'-shaped flow path in the cold water generation chamber 724. As the water is formed, first-in-first-out is possible, so the water that flows in first can be cooled by the vibrating heat pipe (722a) and then discharged without mixing with the water that flows in later. Accordingly, when the water contained in the cold water production chamber 724 is continuously cooled while operating the cold water production pump 750, cold water production can be effectively performed through first-in-first-out.

Terms such as “include,” “comprise,” or “have,” as used above, unless specifically stated to the contrary, mean that the corresponding component may be present, and do not exclude other components. It should be interpreted that it may further include other components. All terms, including technical or scientific terms, unless otherwise defined, have the same meaning as generally understood by a person of ordinary skill in the technical field to which the present invention pertains. Commonly used terms, such as terms defined in a dictionary, should be interpreted as consistent with the contextual meaning of the related technology, and should not be interpreted in an idealized or overly formal sense unless explicitly defined in the present invention.

Although the configuration and operation of the anti-icing cold water generator according to an embodiment of the present invention has been described above, this is illustrative and those skilled in the art will understand the above-described details without departing from the technical spirit of the present invention. It will be appreciated that it is possible to substitute and modify portions of an embodiment.

Therefore, the scope of protection of the present invention should be understood to extend to the invention described in the patent claims and equivalents thereof.

710: Cold water storage unit 720: Cold water generation unit
721: Cold water generation tank 722: External air heat exchange means
722a: Vibrating heat pipe 723: External air receiving room
724: Cold water generation room 729: Cold water path guide bulkhead
730: Water supply line for cold water production 740: Cold water discharge line
750: Pump for cold water production 760: Cold water production room temperature detection unit
770: Cold water storage temperature detection unit 780: Cold water generation control unit
795: External air blowing fan

Claims (9)

In the anti-icing cold water generator,
A cold water storage unit where cold water is stored; And a cold water generator that cools the water in the cold water storage unit,
The cold water generating unit includes a cold water generating tank provided with an external air receiving chamber that accommodates external air, and a cold water generating chamber that is partitioned from the external air receiving chamber and accommodating water. And an external air heat exchange means that performs heat exchange between the external air contained in the external air receiving chamber and the water contained in the cold water generating chamber,
a cold water production water supply line connected to supply water from the cold water storage unit to the cold water production chamber; a cold water discharge line connected so that cold water generated via the cold water generation chamber is recovered from the cold water storage unit; A pump for producing cold water connected to the cold water production water supply line or the cold water discharge line; A cold water production room temperature sensing unit that detects the temperature of the cold water production room; And a cold water storage unit temperature sensing unit that detects the temperature of the cold water storage unit;
Controlling the operation of the cold water production pump so that the cold water temperature of the cold water storage unit is a set temperature based on the signal detected by the cold water storage unit temperature detection unit and the cold water production room temperature detection unit, wherein the cold water production room temperature detection unit A cold water production control unit that operates the cold water production pump to perform a control operation to prevent freezing in the cold water production chamber when the temperature sensed by is lower than the set temperature of water,
a cold water generator case formed to surround the outside of the external air receiving chamber; and
External air is introduced into the external air receiving chamber under the control of the cold water generation control unit so that the cold water temperature of the cold water storage unit is at a set temperature based on the signal detected by the cold water storage unit temperature detection unit and the cold water production room temperature detection unit. An anti-icing cold water generating device comprising an external air blowing fan operated to prevent freezing.
delete According to paragraph 1,
The external air heat exchange means is disposed on one side in the external air receiving chamber and on the other side in the cold water generating chamber to transfer the cold air of the external air to the water filled in the cold water generating chamber by evaporation and condensation of the working fluid without external power. An anti-icing cold water generating device characterized by consisting of a vibrating heat pipe.
delete delete delete According to paragraph 3,
The vibrating heat pipe is composed of a plurality and is installed in the cold water production tank by a heat exchange means installation unit,
The heat exchange means installation unit includes a heat exchange means installation hole drilled in the upper plate of the cold water production tank, and a pipe installation plate installed in the heat exchange means installation hole and having a plurality of pipe insertion slits through which the vibrating heat pipe is inserted into the plate-shaped member. An anti-icing cold water generator, characterized in that.
According to paragraph 1,
Further comprising an outdoor temperature sensing unit that detects the temperature of the external air receiving chamber,
The cold water generation control unit is configured to perform a control operation to stop the operation of the external air blowing fan when the temperature difference detected based on the detection signal detected by the external air temperature detection unit and the cold water production room temperature detection unit is smaller than a set range. Characterized by an anti-icing cold water generator.
According to paragraph 1,
An anti-icing cold water generator, characterized in that a cold water path guide partition is formed so that water flowing into the cold water generation chamber is discharged while forming a 'U' shaped flow path.

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