KR102703571B1 - Coolong and heating filter system for protecting vegetibles in house - Google Patents

Abstract

Initiates a heating and cooling filter system. The present invention comprises: a water tank storing water; a heating and cooling filter arranged on the upper part of the water tank and allowing air and cold water or hot water to pass through at the same time to cool or heat the air with the coldness of the cold water or the heat of the hot water through sensible heat exchange between the air and the cold water or the hot water; a water pump circulating the water in the water tank and supplying it to the heating and cooling filter; a plate heat exchanger provided in a water circulation path between the water tank and the heating and cooling filter to cool the water in the water tank immediately before it is supplied to the heating and cooling filter; a refrigeration cycle capable of cooling the water by absorbing the heat of the water circulating between the water tank and the heating and cooling filter by evaporating the refrigerant in the plate heat exchanger while circulating the refrigerant through a path intersecting with the water in the plate heat exchanger; an immersion heater sunken into the water tank capable of heating the water in the water tank; and a part of the cold water or hot water passed through the plate heat exchanger by the water pump can be supplied to the heating and cooling filter and the opening can be controlled. The present invention relates to a system for controlling a heating and cooling filter, comprising: a water supply valve; a bypass valve installed in parallel with the water supply valve to bypass hot or cold water, which has passed through the plate heat exchanger by the water pump, to a water tank; and a control unit which operates the refrigeration cycle and finely adjusts the opening of the water supply valve to lower the temperature of the house to an appropriate temperature for house-grown agricultural products when the temperature inside the house deviates from the maximum temperature within the range based on preset maximum and minimum temperatures, and operates the immersion heater and finely adjusts the opening of the water supply valve to raise the temperature of the house to an appropriate temperature for house-grown agricultural products when the temperature inside the house deviates from the minimum temperature within the range.

Description

{COOLONG AND HEATING FILTER SYSTEM FOR PROTECTING VEGETIBLES IN HOUSE}

The present invention relates to a heating and cooling filter system, and more specifically, to a heating and cooling filter system capable of finely adjusting the temperature of a house (plastic house, steel house, etc.) for greenhouse cultivation of agricultural crops to the appropriate growing temperature of temperature-sensitive crops while simultaneously maintaining an appropriate humidity, thereby reducing high temperature and low temperature damage to greenhouse crops.

Houses (plastic greenhouses, steel houses, etc.) are widely used for cultivating crops in greenhouses. However, greenhouse-grown agricultural products frequently suffer from high-temperature damage due to summer heat waves and low-temperature damage due to winter cold waves. In particular, among greenhouse-grown agricultural products, there are many agricultural products that are very sensitive to temperature changes in summer or winter. Therefore, if the temperature of the greenhouse where these agricultural products are grown is not finely adjusted to the appropriate growth temperature of temperature-sensitive crops while maintaining appropriate humidity, high-temperature damage or low-temperature damage is likely to occur in summer or winter.

In the past, various air conditioning devices using cooled water have been attempted. These air conditioning devices can be used as house air conditioning devices because they can cool while maintaining humidity, but they also have various problems as explained below.

Korean Utility Model Publication No. 20-0369813 discloses an air purifier assembly type for cooling panels, which comprises a cooling unit, a refrigerant circulation pipe connected to the cooling unit through a refrigerant supply pipe and a refrigerant return pipe, a cooling panel that forms an ice layer when water is supplied to the outer surface by low-temperature refrigerant circulated from the cooling unit, a water supply means that supplies water to the surface of the cooling panel, and a reservoir that stores water flowing down from the ice layer of the cooling panel. Korean Utility Model Publication No. 20-0369813 describes that an ice layer is formed on the surface of an air-conditioning panel installed on the interior walls of a large department store, restaurant, or sauna with a lot of foot traffic, and that water flows over the ice layer to perform a cooling function, and that by forming various environmentally friendly pictures such as ice walls on the inner surface of the air-conditioning panel, the interior design effect can be maximized, thereby maximizing the effect of the air-conditioning system.

Korean Patent Publication No. 10-2000-0066099 discloses an air conditioning device structure that purifies the air by spraying cold or hot water to absorb dust, odor, and bacteria, and further allows heat exchange with the air by directly contacting the cold or hot water with a heat exchanger plate to thereby cool and heat the room, and at the same time maintain an appropriate humidity level indoors. The air conditioning device according to Korean Patent Publication No. 10-2000-0066099 includes a water temperature control unit that supplies cold or hot water, a cold or hot water spray pipe that forms a water film by spraying cold or hot water provided from the water temperature control unit to absorb and filter foreign substances contained in the air being sucked in, a heat exchanger that cools or heats the cold or hot water sprayed from the cold or hot water spray pipe by surface contact and directly exchanges heat with the filtered air, and a blower that supplies the air cooled or heated by the heat exchanger to an appropriate location indoors.

However, according to the air conditioning devices disclosed in these designs or inventions, it is difficult to finely control the cooling and heating temperature, and therefore, they are not suitable for use as cooling and heating devices in greenhouses (plastic greenhouses, steel houses, etc.) for cultivating crops, where the temperature must be finely adjusted to suit the appropriate growing temperature of the cultivated agricultural products.

Korean Utility Model Registration No. 20-0369813 (Registration Date: 2004.11.30) Korean Patent Publication No. 10-2000-0066099 (Publication Date: 2000.11.15)

The present invention has been made to solve the cooling and heating problems of conventional crop greenhouses as described above, and the problem to be solved by the present invention is to provide a cooling and heating filter system that can finely adjust the temperature of a greenhouse (vinyl house, steel house, etc.) for crop greenhouse cultivation to the appropriate growing temperature of temperature-sensitive crops while simultaneously maintaining an appropriate humidity, thereby reducing high temperature damage and low temperature damage to greenhouse crops.

The above-described object of the present invention comprises: a water tank storing water; a heating and cooling filter arranged on the upper part of the water tank and allowing air and cold water or hot water to pass through at the same time to cool or heat the air with the coldness of the cold water or the heat of the hot water through sensible heat exchange between the air and the cold water or the hot water; a water pump circulating the water in the water tank and supplying it to the heating and cooling filter; a plate heat exchanger provided in a water circulation path between the water tank and the heating and cooling filter to cool the water in the water tank immediately before it is supplied to the heating and cooling filter; a refrigeration cycle capable of cooling the water by absorbing the heat of the water circulating between the water tank and the heating and cooling filter by evaporating the refrigerant in the plate heat exchanger while circulating the refrigerant through a path intersecting with the water in the plate heat exchanger; an immersion heater sunken into the water tank capable of heating the water in the water tank; and a part of the cold water or hot water passing through the plate heat exchanger by the water pump can be supplied to the heating and cooling filter. The problem can be solved by a heating and cooling filter system including a water supply valve capable of controlling the opening, a bypass valve installed in parallel with the water supply valve to bypass hot or cold water that has passed through the plate heat exchanger by the water pump, but is not supplied to the heating and cooling filter, to a water tank, and a control unit that operates the refrigeration cycle and finely adjusts the opening of the water supply valve when the temperature inside the house goes out of the maximum temperature range according to the preset maximum and minimum temperatures, thereby lowering the temperature inside the house to an appropriate temperature for greenhouse-grown agricultural products, and operates the immersion heater and finely adjusts the opening of the water supply valve when the temperature inside the house goes out of the minimum temperature range, thereby raising the temperature inside the house to an appropriate temperature for greenhouse-grown agricultural products.

The air intake side of the above cooling/heating filter may further be equipped with an ion cluster generator capable of removing pathogenic microorganisms including mold, bacteria, and viruses in the air, as well as volatile organic compounds including formaldehyde, ammonia, toluene, hydrogen sulfide, acetone, and ethylene.

The case of the above water filter is formed of a transparent material so that the internal filter can be seen from the outside, and the water filter can be installed on the outside of the housing so that the user can visually check the filtered contaminants and replace the filter.

According to the configuration of the present invention described above, rather than simply supplying cold water or hot water cooled or heated by a refrigeration cycle or an immersion heater to a heating and cooling filter, the amount of cold water or hot water supplied to the heating and cooling filter can be finely adjusted by a water supply valve, so that the temperature and humidity inside the house can be finely adjusted to the appropriate growth temperature and humidity of crops that are sensitive to temperature and humidity.

In addition, according to the present invention, pathogenic microorganisms including mold, bacteria, and viruses in the air that can be introduced into the house, and volatile organic compounds including formaldehyde, ammonia, toluene, hydrogen sulfide, acetone, and ethylene can be filtered out in advance by an ion cluster generator, so that it is possible to prevent pest damage and contamination of crops grown in the house.

In addition, according to the present invention, contaminants such as fine dust do not remain in the heating and cooling filter, but are filtered out by a water filter provided separately in the water circulation path, and the water filter is installed outside the housing so that the user can visually check the filtered contaminants and easily replace them.

Figure 1 is a configuration diagram of a heating and cooling filter system according to the present invention.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the attached drawings.

As shown in Fig. 1, the heating and cooling filter system according to the present invention uses not only cold water and hot water for fine temperature adjustment, but also a water supply valve (12a) that can control the amount of cold water and hot water supplied. The used hot water and cold water are circulated and reused. To this end, the heating and cooling filter system according to the present invention includes a heating and cooling filter (10) and a water tank (9) that is placed below the heating and cooling unit and stores water.

The heating and cooling filter (10) is placed on the upper part of the water tank (9) and allows air and cold water or hot water to pass through it at the same time, thereby cooling or heating the air with the coldness of the cold water or the heat of the hot water through sensible heat exchange between the air and the cold water or hot water. The water through which sensible heat exchange has taken place is returned to the water tank (9) and cooled or heated again before being supplied to the heating and cooling filter (10). To this end, the present invention includes a water pump (7) that circulates the water in the water tank (9) and supplies it to the heating and cooling filter (10).

The present invention includes a refrigeration cycle (1 to 6) that uses a plate heat exchanger (4) as an evaporator to cool water circulating through a water tank (9) and a heating and cooling filter (10). The plate heat exchanger (4) is provided in a water circulation path between the water tank (9) and the heating and cooling filter (10) and cools the water in the water tank (9) immediately before it is supplied to the heating and cooling filter (10).

The above refrigeration cycle (1 to 6) includes a compressor (1) that compresses refrigerant to high temperature and high pressure, an outdoor unit coil (2) and an outdoor unit fan (6) that condense the compressed refrigerant into high pressure liquid refrigerant, an expansion valve (3) that changes the condensed liquid refrigerant into low pressure refrigerant that can be vaporized, a plate heat exchanger (4) that absorbs the heat of circulating water and changes the state of the liquid refrigerant into a gaseous refrigerant, a liquid separator (5) that separates the liquid refrigerant that is not vaporized in the plate heat exchanger (4), and a compressor (1) that compresses the vaporized refrigerant again to high temperature and high pressure. The refrigeration cycle circulates the refrigerant through a path intersecting with water in the plate heat exchanger (4), vaporizes the refrigerant in the plate heat exchanger (4), and cools the water by absorbing the heat of the water circulating between the water tank and the heating and cooling filter.

The present invention comprises an immersion heater (13) to heat water circulating in a water tank (9) and a heating/cooling filter (10). The immersion heater (13) is sunken into the water tank and heats the water in the water tank.

The water in the above water tank (9) passes through the water pump (7), the water filter (8) that filters foreign substances in the water, and the plate heat exchanger (4), and then is divided into the feed valve (12a) and the bypass valve (12b). The water passing through the feed valve (12a) is supplied to the heating and cooling filter (10), and the water passing through the bypass valve (12b) is recovered as a water cooler. The amount of water supplied to the feed valve (12a) and the bypass valve (12b) is controlled by the control unit (17).

The above water supply valve (12a) is a valve that can supply a portion of the cold water or hot water that has passed through the plate heat exchanger (4) by the water pump (7) to the heating and cooling filter (10) and can control the opening.

The above bypass valve (12b) is installed in parallel with the above water supply valve (12a) to bypass the hot or cold water that has passed through the plate heat exchanger (10) by the water pump (7) and is not supplied to the heating/cooling filter (10) to the water tank (9).

The above control unit (17) operates the refrigeration cycle (1 to 6) and finely adjusts the opening of the water supply valve (12a) to lower the temperature of the house to an appropriate temperature for house-grown agricultural products when the temperature inside the house goes out of the range for the maximum temperature and minimum temperature set in advance, and operates the immersion heater (13) and finely adjusts the opening of the water supply valve (12a) to raise the temperature of the house to an appropriate temperature for house-grown agricultural products when the temperature inside the house goes out of the range for the minimum temperature. The refrigeration cycle (1 to 6) or the immersion heater (13) always operates alternatively. To this end, an indoor temperature sensor capable of measuring the temperature inside the house and providing the measured temperature to the control unit is provided.

According to the configuration of the present invention described above, rather than simply supplying cold water or hot water cooled or heated by the refrigeration cycle (1 to 6) or the immersion heater (13) to the heating and cooling filter (10), the amount of cold water or hot water supplied to the heating and cooling filter (10) can be finely adjusted by the water supply valve (12a), so that the temperature and humidity inside the house can be finely adjusted to the appropriate growth temperature and humidity of crops that are sensitive to temperature and humidity.

The air cooled or heated by cold water or hot water in the above cooling and heating filter (10) is supplied into the house by the indoor blower (16). At this time, in order to prevent water from being condensed, a water-prevention filter (11) is provided between the cooling and heating filter (10) and the indoor blower (16), and the water-prevention filter (11) is arranged so that all water recovered from the water-prevention filter (11) flows into the water tank (9).

Pathogenic microorganisms including mold, bacteria, and viruses, as well as volatile organic compounds including formaldehyde, ammonia, toluene, hydrogen sulfide, acetone, and ethylene, can damage crops when introduced inside the greenhouse.

The air inlet side of the above-mentioned cooling and heating filter (10) may further be provided with an ion cluster generator (15) capable of removing pathogenic microorganisms including mold, bacteria, and viruses in the air, and volatile organic compounds including formaldehyde, ammonia, toluene, hydrogen sulfide, acetone, and ethylene. The ion cluster generator (15) can ionize oxygen or water vapor in the air by a high-voltage electric field to generate active oxygen such as superoxide ions (O ₂ ^-1 ) and hydroxyl radicals (·OH). The generated active oxygen oxidizes mold, bacteria, and viruses in the air to kill them, or neutralizes formaldehyde, ammonia, toluene, hydrogen sulfide, acetone, ethylene, etc. to render them harmless.

Since the water is circulated, a sterilizing lamp (14) that comes into contact with the water is installed inside the water tank (9) to prevent pathogenic microorganisms such as mold, bacteria, and viruses from growing in the water.

It is preferable that the case of the above water filter (8) be formed of a transparent material so that the internal filter can be seen from the outside, and that the water filter (8) be installed on the outside of the housing so that the user can visually check the filtered contaminants and replace the filter.

1 : Compressor
2: Outdoor unit coil
3: Expansion valve
4: Plate heat exchanger
5: Liquid separator
6: Outdoor fan
7: Water pump
8: Water filter
9: Water tank
10: Heating and cooling filter
11: Anti-fog filter
12a,12b : valve
13: Immersion heater
14: Water tank sterilization lamp
15: Ion cluster generator
16: Indoor blower
17 : Control Unit
18: Indoor temperature sensor

Claims (3)

A water tank that stores water;
A heating and cooling filter that is placed on the upper part of the water tank and allows air and cold water or hot water to pass through it at the same time, thereby cooling or heating the air with the coldness of the cold water or the heat of the hot water through heat exchange between the air and the cold water or hot water;
A water pump that circulates water in the water tank and supplies it to the heating and cooling filter;
A plate heat exchanger provided in the water circulation path between the water tank and the heating/cooling filter to cool the water in the water tank immediately before it is supplied to the heating/cooling filter;
A refrigeration cycle capable of cooling water by circulating refrigerant through a path intersecting with water in the plate heat exchanger, evaporating the refrigerant in the plate heat exchanger, and absorbing the heat of water circulating between the water tank and the heating and cooling filter;
An immersion heater that is sunken into the water tank and can heat the water in the water tank;
A water supply valve capable of supplying a portion of the cold water or hot water that has passed through the plate heat exchanger by the water pump to a heating and cooling filter and controlling the opening;
A bypass valve installed in parallel with the above-mentioned water supply valve to bypass hot or cold water that has passed through the plate heat exchanger by the water pump and is not supplied to the heating and cooling filter to the water tank;
A heating and cooling filter system capable of reducing high-temperature damage and low-temperature damage to greenhouse crops, comprising: a control unit that operates the refrigeration cycle and finely adjusts the opening of the water supply valve to lower the temperature of the greenhouse to an appropriate temperature for greenhouse-grown agricultural products when the temperature inside the greenhouse goes out of the range for the highest temperature and the lowest temperature set in advance; and that operates the immersion heater and finely adjusts the opening of the water supply valve to raise the temperature of the greenhouse to an appropriate temperature for greenhouse-grown agricultural products when the temperature inside the greenhouse goes out of the range for the lowest temperature.
In the first paragraph,
A heating and cooling filter system capable of reducing high-temperature damage and low-temperature damage to greenhouse crops, characterized in that the air inlet side of the heating and cooling filter further comprises an ion cluster generator capable of removing pathogenic microorganisms including mold, bacteria, and viruses in the air, and volatile organic compounds including formaldehyde, ammonia, toluene, hydrogen sulfide, acetone, and ethylene.
In the first paragraph,
A heating and cooling filter system capable of reducing high-temperature damage and low-temperature damage to greenhouse crops, characterized in that the water in the water tank passes through the water pump, the water filter that filters out foreign substances in the water, and the plate heat exchanger, and then is divided into the water supply valve and the bypass valve, the case of the water filter is formed of a transparent material so that the internal filtration filter can be seen from the outside, and the water filter is installed on the outside of the housing so that the user can visually check the filtered contaminants and replace the filtration filter.

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