KR20000000294A - apparatus for preserving temperature and humidity by direct heat-exchange method of underground water and air - Google Patents

Abstract

PURPOSE: A thermohydrostat is provided to cool the subway station and the indoor of the station to purify the air, and to reduce the maintenance cost using the underground water produced from inside of such an underground building as a subway station. CONSTITUTION: A thermohydrostat comprises:a housing part(100) having and inflow and outflow passage for air and underground water; an underground water supply part(200) installed on the outside of the housing part to suck up the underground water; a water flowing part(300) to supply and flow the underground water from the underground water supply part to the housing part; an air inlet part(400) to supply the air into the housing; a heat exchange part(500) to perform a heat exchange by the contact of the inlet air with the flowed-in underground water; and an underground water discharge part(700) to discharge the heat exchanged underground water.

Description

Apparatus for preserving temperature and humidity by direct heat-exchange method of underground water and air}

The present invention relates to a constant temperature / humidity apparatus using a direct heat exchange method between groundwater and air, and more particularly, to suck air in the atmosphere into a limited space, and to lift the groundwater to directly contact the air and groundwater to mutually exchange heat. The present invention relates to a constant temperature and humidity device that minimizes power consumption by adopting a natural heat exchange method for discharging heat-exchanged air into the atmosphere.

In general, in the heat exchange of air in the atmosphere, refrigerant gas or oil is used as a medium. However, the freon gas in the refrigerant is gradually subject to regulation due to environmental pollution, and also has a problem such as headache due to carbon dioxide and unburned gas generated during the combustion of oil, such as oil.

And, first of all, the refrigerant gas or petroleum, which is the heat exchange medium, has a disadvantage in that the price of the medium itself and the price of the air conditioner and the air conditioner itself are high. In addition, in the case of an air conditioner using a medium of refrigerant gas, a lot of electricity is used, and the power consumption per hour generally requires about 1.3 to 2.1 KW / h. In addition, in recent years, the use of air conditioners in offices or companies as well as private homes is absolutely increasing, thereby increasing the power shortage in summer.

In the case of heat exchange using petroleum, in particular, in the winter, due to the dehumidification effect of evaporating moisture contained in the air at the same time to generate heat, the user has to be provided with a humidification function separately. In addition, since the heat exchange using the medium does not remove the smell and dust in the air, there is a burden of additionally installing an air cleaner.

Therefore, there has been a conventional attempt to solve the above problems. For example, in the case of an ice fan, it was developed to cool the surrounding air using the heat of vaporization of ice. However, in the above method, since the cool air generated by the heat of vaporization contains moisture, there is a possibility that a rather adverse effect occurs in the air conditioner having a dehumidifying effect in summer.

In the case of livestock farms, the groundwater itself is sprinkled by raising groundwater in an effort to lower the temperature of the barn and dropping the temperature of the whole barn. However, in the above method, not only waste of groundwater but also various wastes in the barn are discharged together. In general, spraying groundwater with a low temperature of 15 ° C directly to the animals in the house is harmful to the animals, so it is collected at a certain place, heated to a certain temperature, and then sprayed on the house. However, the above method has a disadvantage that a considerable time must pass after collecting groundwater.

In addition to the livestock farms, as well as the vinyl house cultivation farms installed a double roof of the plastic house to sprinkle groundwater in the space to reduce the temperature in the house is currently waste a lot of ground water and heat exchange is also very inefficient.

In the case of urban subways, a lot of groundwater is generated when excavation work underground, and most of the groundwater generated is disposed of as rivers. In addition, even after the completion of the subway, groundwater, which continues to be generated due to the excavation during construction, is flowing into the river, causing a waste of groundwater resources.

Therefore, considering that the average groundwater temperature in Korea is 15-18 ° C, waste of groundwater as described above is a waste of enormous energy as well as waste of water. It is an object of the present invention to efficiently utilize the infinite potential energy thus wasted.

Accordingly, an object of the present invention is to provide a constant temperature / humidity device for generating heat exchange by raising groundwater and making direct contact with air in the atmosphere.

Another object of the present invention is to provide a constant temperature / humidity device that lifts ground water and makes direct contact with air in the atmosphere to remove odors and dust in the air.

In addition, there is another object to provide a constant temperature and humidity device using a groundwater generated inside an underground building, such as a subway, to clean the cooling effect and air in subway stations and buildings, and to maintain a low maintenance cost.

In addition, there is another object to provide a constant temperature and humidity device for minimizing the power consumption compared to the normal air conditioning.

1 is a perspective view of a constant temperature and humidity device according to the present invention.

2 is a rear view of the thermo-hygrostat according to the present invention.

3 is a side view of the thermo-hygrostat according to the present invention.

4 is a flow chart according to the operation of the thermo-hygrostat according to the present invention.

<Description of Symbols for Major Parts of Drawings>

100: housing 200: groundwater supply

210: pump 220: water pipe

230: water quantity control valve 240: groundwater filter

300: flowing part 310: flowing water pipe

400: air intake 410: suction fan

420: air suction duct 430: air filter

500: heat exchanger 510: water film plate

600: air discharge unit 700: groundwater discharge unit

710: groundwater discharge duct 720: drain

The present invention for achieving the above object is a constant temperature and humidity device according to the direct heat exchange method of the ground water and air, the housing portion having an air inflow passage and groundwater outflow passage; An underground water supply unit installed outside the housing to raise ground water; An oil / water unit for supplying and flowing the groundwater from the groundwater supply unit to the housing unit side; An air suction unit installed on the inner side of the housing to suck air from the outside and to supply the air into the housing; A heat exchanger configured to exchange heat by contacting air sucked by the air suction unit with the groundwater flown by the oil feeder; An air discharge unit discharging the heat-exchanged air into the atmosphere by the heat exchange unit; Groundwater discharge unit for discharging the ground water heat-exchanged by the heat exchanger; consisting of a constant temperature and humidity device for heat exchange by directly contacting the ground water introduced through the ground water supply and the air introduced through the air suction.

Here, the ground water supply unit and the pump to draw the ground water from the ground, and the water supply pipe for supplying the ground water raised by the pump to the flowing water; It is preferable that the groundwater filter for filtering impurities of the groundwater flowing through the water supply pipe.

The air suction unit includes a suction fan that sucks air in the atmosphere; An air suction duct for flowing air sucked by the suction fan; An air filter for filtering impurities in the air supplied from the air suction duct; It is preferable to comprise.

In addition, the flowing water portion and the flowing water pipe for flowing the ground water; It serves to flow the ground water down to the lower flow pipe. And it is preferable that it is comprised connected with the water film board mentioned later.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a thermo-hygrostat according to the present invention, Figure 2 is a rear view of the thermo-hygrostat according to the present invention, Figure 3 is a side view of the thermo-hygrostat according to the present invention, Figure 4 is Flow chart according to the operation of the thermo-hygrostat.

As shown, the present invention is largely the housing unit 100, groundwater supply unit 200, flowing water unit 300, air suction unit 400, heat exchange unit 500, air discharge unit 600, ground water discharge unit It consists of 700.

First, the housing part 100 will be described. The housing part 100 is provided with an air inflow passage on one side and a groundwater outflow passage on the upper side, respectively, the inside of the housing unit 100 is provided with an oil and water unit 300, heat exchange unit 500 to be described later do.

Next, the groundwater supply unit 200 will be described. The ground water supply unit 200 is composed of a pump 210, water supply pipe 220, water quantity control valve 230, ground water filter 240. The pump 210 is installed outside the housing part 100 and serves to pull up the groundwater from the basement. And, the water supply pipe 220 is connected to the pump 210 receives the ground water pulled up by the pump 210 is connected to the interior of the housing part 100, the flowing water portion 300 which will be described later the ground water ) Serves as a supply. In addition, the water supply control valve 230 is connected to one side of the water supply pipe 220 is installed, and serves to adjust the amount of the ground water flowing through the water supply pipe 220 at the user's discretion. In addition, the groundwater filter 240 is installed on one side or the center of the water supply pipe 220, and serves to filter out impurities of the ground water flowing through the water supply pipe 220.

Next, the flowing portion 300 will be described. The water pipe 310 and the water film plate 510 are configured. The water pipe 310 is installed in connection with the water supply pipe 220 and is located inside the housing part 100. In addition, the bottom of the water pipe 310 is formed to be connected to the water film plate 510 which will be described later to allow the groundwater to flow down.

Next, the air suction unit 400 will be described. The suction fan 410, the air suction duct 420, the air filter 430 is composed of. The suction fan 410 is located on the outer surface of the housing part 100 and serves to suck air in the atmosphere. The air suction duct 420 serves to flow air in the air sucked by the suction fan 410 into the housing. In addition, the air filter 430 is located at one side or the center of the air suction duct 420 and serves to filter impurities in the air supplied from the air suction duct 420.

Next, the heat exchanger 500 will be described. The heat exchange part 500 includes the water film plate 510, and serves to directly contact the ground water flowing along the water film plate 510 and air passing through the air filter 430. The water film plate 510 is formed in a thin plate shape having a bent portion, is connected to the bottom surface of the water pipe 310, a plurality of vertically installed is installed, the ground water flowing out of the water pipe 310 It acts to slow down the falling speed of the groundwater by flowing along the bent portion of the membrane plate 510. In addition, the membrane plate 510 has a structure in which the groundwater stays on the membrane plate 510 for a long time. In addition, the said water film plate may consist of cloth of a linear plate shape, and belongs to the scope of the present invention.

Next, the air discharge unit 600 will be described. The air discharge part 600 serves to discharge heat-exchanged air that has passed through the heat exchange part 500 into the atmosphere.

Next, the groundwater discharge unit 700 will be described. The groundwater discharge unit 700 is composed of a groundwater discharge duct 710, the drain hole (720). The groundwater discharge duct 710 serves to flow the groundwater passing through the membrane plate 510, and the groundwater discharge duct 710 is installed below the membrane plate. In addition, the drain port 720 is connected to the groundwater discharge duct 710 and is installed to serve to flow the groundwater introduced from the groundwater discharge duct 710.

Hereinafter, the operation process of the constant temperature and humidity apparatus by the direct heat exchange method of the ground water and air according to the above configuration will be described.

In general, the groundwater temperature in Korea is 15 ~ 17 ℃ annually, which is almost unchanged throughout the year and is almost constant locally. In other words, in the summer of 25-35 ℃, the temperature of 17 ℃ feels extremely cold, whereas in the winter of from -5 ℃ to 10 ℃, the groundwater of 17 ℃ will be warm water. Therefore, the present invention uses groundwater under the above conditions. The groundwater drawn up by the pump 210 is introduced into the water supply pipe 220, and the groundwater flowing through the water supply pipe 220 is introduced by adjusting the quantity of water by the water quantity control valve 230. In addition, the introduced groundwater receives impurities in the groundwater through the groundwater filter 240. In addition, the groundwater from which the impurities are removed is introduced into the water flow pipe 310 inside the housing part 100 through the water supply pipe 220, and the ground water introduced into the water flow pipe 310 is the flow water pipe 310. It flows down along the water film plate 510 connected to the inner bottom.

On the other hand, since the air in the air must be heat exchanged, the air in the air is introduced into the air intake duct 420 inside the housing part 100 through the suction fan 410. In addition, the introduced air is first removed dust and the like in the air through the air filter 430, the air from which the dust is removed flows to the heat exchange unit (500).

Air passing through the air filter 430 flows in the reverse direction of the groundwater flowing along the water film plate 510, and air flows upward along the water film plate 510 to directly heat exchange with the ground water. Then, the heat-exchanged air is again sent to the air in the air through the air discharge unit 600 to adjust the temperature of the air. Therefore, while the above process is repeatedly performed, the temperature of the air is moved in the temperature direction of the air passing through the air discharge unit 600.

In addition, the groundwater moved downward along the membrane plate 510 is introduced into the groundwater discharge duct 710, and the groundwater of the groundwater discharge duct 710 is external to the housing part 100 through the drain hole 720. Is discharged.

The discharged groundwater is not thrown away in a natural state, but in the case of a farmhouse or a livestock farm, it is collected at a certain place and used for agricultural water such as a plastic house or other uses requiring water.

Hereinafter will be described the performance with the experimental results of the constant temperature and humidity device by the direct heat exchange method of the ground water and air according to the above configuration.

Table 1. Performance test result of thermo-hygrostat [Unit: ℃]

division Air temperature Outlet temperature Air temperature difference Flow rate (l / min) Temperature Outflow temperature Water temperature difference Electricity consumption (kw / h) Total calories (kcal / h) 1st experiment 31.0 23.3 7.7 2.0 20.2 21.7 1.5 2nd experiment 30.5 23.0 7.5 4.1 19.7 20.8 1.1

The chart is the result of the experiments over the first and second stages, which shows that despite the change in flow rate, there is no significant difference between the actual air temperature and the outlet temperature. Therefore, even if the consumption of groundwater is minimized, the temperature effect is almost the same. In addition, it has been proved that much cooling effect can be obtained with much less electricity consumption than conventional air conditioners.

As described above, the constant temperature and humidity apparatus according to the present invention has an advantage of maintaining a temperature close to the temperature of the groundwater with a minimum amount of groundwater flow rate and a minimum power consumption amount.

As described above, according to the present invention, the constant temperature and humidity apparatus according to the direct heat exchange method between the groundwater and the air may have an endothermic effect in the summer and an exothermic effect in the winter. In addition, there is an advantage that the maintenance cost is low by utilizing the groundwater, which is a by-product of nature, without depending on the refrigerant or other compounds, and thus the cooling effect of the low power is obtained because the power consumption is hardly consumed for the air conditioner.

In addition, due to the contact with the ground water can remove the odor, dust, water-soluble pollutants, etc. in the air there is also an air purification function. In addition, there is a dehumidification effect in the summer, there is an advantage to have a humidification effect in winter.

And, as mentioned in the prior art, a considerable amount of groundwater is discharged into the river without any treatment inside the subway, but there is an advantage that can be utilized for air purification, temperature control, etc. inside the subway using the device of the present invention.

In addition, it can be applied to all underground facilities as well as the subway, there is another advantage that can be solved at low cost, such as temperature control, air purification, humidity control by using in factories using ground water.

Another advantage is that it can be critically used at very low cost for poultry, pig farms, vinyl houses, low-temperature farms, even breweries, mushroom farms.

In addition, the heat exchanged groundwater discharged from the constant temperature and humidity apparatus according to the present invention has another advantage that can be recycled to agricultural water.

Claims (4)

A housing part 100 having an air inflow and outflow passage; An underground water supply unit 200 installed outside the housing unit 100 to raise groundwater; An oil / water unit 300 for supplying and flowing the ground water from the ground water supply unit 200 to the housing unit 100; An air suction unit 400 installed on an inner surface of the housing unit 100 to suck air from the outside and supply the air into the housing unit 100; A heat exchanger 500 configured to exchange heat by contacting the air sucked by the air suction unit 400 and the groundwater flown by the flow-through unit 300 in the housing unit 100; An air discharge part 600 for discharging the heat-exchanged air into the atmosphere by the heat exchange part 500; An underground water discharge part 700 for discharging the heat exchanged ground water by the heat exchange part 500; Constant temperature and humidity device by a direct heat exchange method of groundwater and air, characterized in that the configuration. According to claim 1, wherein the ground water supply unit 200, A pump 210 for raising groundwater from the basement, A water supply pipe 220 for supplying the ground water raised by the pump 210 to the flowing water part; A water quantity control valve 230 for controlling the quantity of the groundwater flowing through the water supply pipe 220; The constant temperature and humidity device according to the direct heat exchange method of the ground water and air, characterized in that consisting of a ground water filter 240 for filtering impurities of the ground water flowing through the water supply pipe (220). According to claim 1, The air suction unit 400, A suction fan 410 for sucking air in the atmosphere, An air suction duct 420 for flowing air sucked by the suction fan 410; An air filter 430 filtering out impurities in the air supplied from the air suction duct 420; Constant temperature and humidity device by a direct heat exchange method of groundwater and air, characterized in that it comprises a. The method of claim 1, wherein the heat exchange part 500, A water film plate 510 connected to the bottom surface of the water pipe 310 and installed to reduce the falling speed of the ground water; Constant temperature and humidity device by a direct heat exchange method of groundwater and air, characterized in that the configuration.