KR100600857B1 - Ventilating system for saving energy using transition of regenerator and method thereof - Google Patents

Abstract

According to the present invention, the outdoor and indoor ducts inlet and outside air respectively; A heat storage material for converting heat energy of outside and inside air introduced into the duct into latent heat energy; And a rotating fan that rotates to allow the outside air and the internal air to flow into the duct, and detects a phase change in temperature of the heat storage material and provides an air-conditioning and energy saving ventilation system using a phase change of the heat storage material in which air supply or exhaust of the duct is determined. .

Ventilation system, heat storage material, glycerin, cetane, hexadecane, phase transition, condensate, total heat exchange

Description

Ventilating system for saving energy using transition of regenerator and method

1 is a side cross-sectional view showing the configuration and operation of the cooling and heating energy saving ventilation system using the phase transition of the heat storage material according to a preferred embodiment of the present invention.

Figure 2a is a control flow diagram showing the operating state of the ventilation system according to a preferred embodiment of the present invention in the summer season; And

Figure 2b is a control flow diagram showing the operating state of the ventilation system according to a preferred embodiment of the present invention in winter.

<Description of the symbols for the main parts of the drawings>

110: air supply duct 120: exhaust duct

130: heat storage material 150: sensor

160: filtration filter

The present invention relates to a ventilation system and a method thereof, and more particularly, to a ventilation system and a method for saving heating and cooling energy by performing heat exchange by using a heat storage material that causes phase transition according to the temperature of the inside and outside air. It is about.

The air in an enclosed space increases the carbon dioxide content over time due to the breathing of living things, which interferes with the breathing of living things. Therefore, when many people, such as offices, stay in a narrow space, the indoor polluted air must be coped with fresh air from time to time. At this time, a commonly used ventilation system.

However, the conventional ventilation system adopts a method of forcibly discharging only indoor air to the outside by using one blower. Therefore, when the air is discharged to the outside using a single blower, the air or air in the room is discharged to the outside without filtration, and the cost of heating and cooling the room is increased by introducing outdoor air without heat exchange through the door or window opening. It took a lot of unnecessary.

In addition, the sudden cold air and heat flows from the outside to the inside of the air due to the rapid change in the temperature of the people who are inside of it feels unpleasant, especially the indoor air is discharged to the outside when the window or door frame is closed In this case, the inflow of fresh air may be blocked and oxygen deficiency may occur as well as the humidity control of the indoor air is not made at all, and thus there is a problem in that a comfortable indoor environment is not maintained even though a ventilation system is provided.

Therefore, a ventilation system using a total heat exchanger is used to solve the above problems.

However, in the ventilation system using the total heat exchanger, the temperature of the outdoor air supplied to the room by the sensible heat exchange method that occurs between the outdoor air to be supplied and the indoor air to be exhausted has a median value between the indoor temperature and the outdoor temperature. For example, in summer, the indoor temperature in a pleasant state is about 23 ° C., whereas the outdoor temperature at a very high temperature is about 50 ° C. At this time, if the indoor air at 23 ° C. and the outdoor air at 50 ° C. are heat-exchanged by the total heat exchanger, the temperature of the outdoor air supplied to the room is about 35 ° C., which is considerably higher than the comfortable room temperature.

Therefore, the ventilation system using the heat exchanger as described above shows a considerable difference between the temperature of the outdoor air and the air temperature supplied to the room in the summer or winter when the temperature difference between the outside and the room is remarkable, so that the air conditioner can be maintained more comfortably. Or there is a problem that keeps the room temperature constant by continuing to operate the heater.

Accordingly, an object of the present invention is to use a heat storage material causing a phase transition according to the temperature of the interior and exterior air ventilation system to save the heating and cooling energy in the summer or winter by maintaining the indoor temperature of the air supplied to the indoor proper temperature and To provide a way.

According to the present invention, the outdoor and indoor ducts inlet and outside air respectively; A heat storage material for converting heat energy of outside air and bet introduced into the duct into latent heat energy; And a rotating fan that rotates to allow the outside air and the internal air to flow into the duct, and detects a phase change in temperature of the heat storage material and provides an air-conditioning and energy saving ventilation system using a phase change of the heat storage material in which air supply or exhaust of the duct is determined. .

Here, the heat storage material is preferably glycerol (Glycerol) causing a phase transition at a temperature of 18 ℃.

In addition, the heat storage material is preferably cetane (Cetane) that causes a phase transition at a temperature of 20 ℃.

In addition, the temperature sensor for measuring the temperature deviation due to the phase transition of the heat storage material is preferably further provided.

On the other hand, according to the present invention, the outside air introduced into the air supply duct is supplied to the room proper temperature by the phase transition of the heat storage material; A heat storage material temperature measuring step of measuring a temperature deviation of the phase shifted heat storage material; And exhausting air from the outside air according to the temperature difference of the heat storage material and exhausting the bet to the exhaust duct so that the heat storage material is phase-changed to the previous state again. Is provided.

In addition, the heat storage material temperature deviation of the heat storage material temperature measurement step is preferably ± 3 ℃ of the phase transition temperature of the heat storage material.

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

1 is a side cross-sectional view showing the configuration and operation of the cooling and heating energy saving ventilation system using the phase transition of the heat storage material according to a preferred embodiment of the present invention.

As shown in FIG. 1, the ventilation system of the present invention includes an air supply duct 110 and an air supply duct 110, which are provided inside the main body 101 to supply outdoor air to an indoor area, and intersect at a predetermined position. The exhaust duct 120 and the air supply duct 110 and the exhaust duct 120 is exhausted to the outside and includes a heat storage material 130 for heat-exchanging the outdoor air and the indoor air exhausted.

The air supply inlet 111 and the air supply outlet 112 are formed at both ends of the air supply duct 110, and the air exhaust inlet 121 and the air outlet 122 are formed at both ends of the air exhaust duct 120.

An air supply fan 141 is provided at the air supply outlet 112 of the air supply duct 110 to forcibly suck the outdoor air, and an exhaust fan 142 forcibly discharges the indoor air at the exhaust outlet 122 of the exhaust duct 120. Is provided.

Here, the air supply duct 110 and the exhaust duct 120 is divided so as not to interfere with each other by the inner partition 102 of the main body 101.

In addition, the air supply suction inlet 111 of the air supply duct 110, the first filter (Pre Filter) to remove the large dust in the outdoor air and the indoor air (Pre Filter), the outside air first filtered by the first filter And a second filter, which is an antibacterial filter for removing contaminants and airborne bacteria from air, and a hepa filter for filtering fine dust from outside air and air filtered by the second filter. A third filter which is a filter, a fourth filter which is a phosphate-deposited palm granular activated carbon filter for deodorizing the outside air and the bet filtered by the third filter, and the fourth filter by the fourth filter And a filtration filter 160 including a fifth filter, which is a TVOC-HCHO filter for filtering seven harmful substances such as formaldehyde (HCHO) and total volatile organic compounds (TVOC) of outside air and bet. To allow clean air to enter the room. Is recommended.

The heat storage material 130 is a glycerol having a melting point of 18 ℃, boiling point of 290 ℃, heat of fusion 200.62 kJ / kg, causing a phase transition (solid to solid or liquid to liquid) at an appropriate temperature of 18 ℃ ~ 20 ℃ Glycerol) or Cetane (or Hexadecane) with a melting point of 20 ° C., boiling point of 278 ° C. and heat of fusion 229 kJ / kg is used.

Therefore, when the phase transition of glycerol or cetane from solid to liquid occurs, heat (or moisture) in the air flowing into the heat storage material 130 is absorbed by the heat storage material 130, thereby lowering the temperature of the air.

On the contrary, when the glycerol or cetane phase transition from a liquid to a solid, heat (or water) released from the heat storage material 130 is increased by heat (or water) in the air flowing into the heat storage material 130. The temperature of the air becomes high.

In other words, when hot air is absorbed by the solid heat storage material 130, the heat storage material 130 is phase-transformed into a liquid state by the high temperature heat in the air, and thus the high temperature air passing through the heat storage material 130 is transferred. It is changed to low temperature air of about 18 ℃ ~ 20 ℃.

In addition, when low temperature air is absorbed into the liquid heat storage material 130, the heat of the high temperature heat storage material 130 is consumed by the low temperature heat in the air, thereby causing the heat storage material 130 to phase change to a solid state. Low temperature air is changed to high temperature air of about 18 ℃ ~ 20 ℃.

Meanwhile, combustible gases such as methane, propane and butane, toxic gases such as carbon monoxide, hydrogen sulfide and ammonia, and volatile organic compounds to measure indoor air pollution, humidity and temperature at predetermined locations outside the main body 101 and throughout the room. And various sensors 150 including semiconductor gas sensors mainly applied for indoor air conditioning such as tobacco smoke, carbon dioxide, and odors.

Here, the various sensors 150 preferably further include a temperature sensor for measuring the temperature deviation of the heat storage material (130).

Hereinafter, a method of a ventilation system according to a preferred embodiment of the present invention will be described.

2A and 2B are control flow diagrams showing an operating state of a ventilation system according to a preferred embodiment of the present invention in summer and winter, respectively.

First, as shown in Figure 2a, it will be shown the operating state of the ventilation system according to the invention in the summer.

Here, it is assumed that the phase transition state of the heat storage material 130 is a solid state.

First, the air supply fan 141 is rotated by a control device (not shown) for controlling the ventilation system main body 101, whereby outdoor air of high temperature flows from the outside into the air supply suction port 111 of the air supply duct 110. (Step S200).

Subsequently, when high temperature outdoor air is absorbed into the solid heat storage material 130, heat of the outside air is absorbed by the heat storage material 130 until the heat storage material 130 becomes a liquid state, and the high temperature outdoor air is about 18 degrees. The temperature is changed to a low temperature of about ℃ ~ 20 ℃ is introduced into the room through the air supply outlet 112 (step S205).

Thereafter, the temperature of the heat storage material 130 is measured by the sensor 150 for measuring the temperature of the heat storage material 130, and the temperature deviation of the measured heat storage material 130 is a predetermined reference value 18 ° C ~ 20 ° C If the temperature is measured about 3 ℃ higher than the temperature (step S210), the control system of the ventilation system determines that the phase transition state of the heat storage material 130 is a complete liquid state (no more phase change occurs, the air of the air supplied to the room It is determined that the temperature is higher than the room temperature (step S215).

Thereafter, the rotation of the air supply fan 141 is stopped by the control device of the ventilation system and the air supply operation from the outside is terminated (step S220).

Thereafter, the exhaust fan 142 is rotated by the control device of the ventilation system, whereby a low-temperature bet flows into the exhaust suction opening 121 of the exhaust duct 120 from the room (step S225).

Subsequently, when the low-temperature bet is absorbed into the liquid heat storage material 130, heat is released from the heat storage material 130, thereby causing the heat storage material 130 to phase transition to a solid state (step S230).

Thereafter, the temperature of the heat storage material 130 is measured by the sensor 150 for measuring the temperature of the heat storage material 130, and the temperature deviation of the measured heat storage material 130 is a predetermined reference value 18 ° C ~ 20 ° C If the temperature is measured about 3 ℃ lower (step S235), the control system of the ventilation system is determined that the phase transition state of the heat storage material 130 is a solid state (no more phase change occurs, so that The temperature is determined to maintain the indoor proper temperature) (step S240).

Thereafter, the rotation of the exhaust fan 142 is stopped by the control device of the ventilation system and the exhaust operation from the room is terminated (step S245).

Thereafter, the control device of the ventilation system proceeds to step S200, and the operation sequence is repeatedly performed until the end signal is input.

 On the other hand, as shown in Figure 2b, it will be shown the operating state of the ventilation system according to the invention in winter.

Here, it is assumed that the phase transition state of the heat storage material 130 is a liquid state.

First, the air supply fan 141 is rotated by the control device of the ventilation system, so that low-temperature outdoor air flows into the air supply suction port 111 of the air supply duct 110 from outside (S300).

Subsequently, when low temperature outside air is absorbed into the liquid heat storage material 130, heat is released from the heat storage material 130 until the heat storage material 130 becomes a solid state. It is changed to a state of high temperature, and is introduced into the room through the air supply outlet 112 (step S305).

Thereafter, the temperature of the heat storage material 130 is measured by the sensor 150 for measuring the temperature of the heat storage material 130, and the temperature deviation of the measured heat storage material 130 is a predetermined reference value 18 ° C ~ 20 ° C If the temperature is measured about 3 ℃ lower (step S310), the control system of the ventilation system is determined that the phase transition state of the heat storage material 130 is a solid state (no more phase transition occurs, the air of the air supplied to the room It is determined that the temperature is lower than the room temperature (step S315).

Thereafter, the rotation of the air supply fan 141 is stopped by the control device of the ventilation system and the air supply operation from the outside is terminated (step S320).

Thereafter, the exhaust fan 142 is rotated by the control device of the ventilation system, whereby hot bet from the room flows into the exhaust suction opening 121 of the exhaust duct 120 (step S325).

Thereafter, when a high temperature bet is absorbed by the solid heat storage material 130, heat of the bet is absorbed by the heat storage material 130, and the heat storage material 130 is phase-transformed to a liquid state (S330).

Thereafter, the temperature of the heat storage material 130 is measured by the sensor 150 for measuring the temperature of the heat storage material 130, and the temperature deviation of the measured heat storage material 130 is a predetermined reference value 18 ° C ~ 20 ° C If the temperature is measured about 3 ℃ higher than the temperature (step S335), the control device of the ventilation system is determined that the phase transition state of the heat storage material 130 is a complete liquid state (no more phase transition is generated, The temperature is determined to maintain the indoor proper temperature) (step S340).

Thereafter, the rotation of the exhaust fan 142 is stopped by the control device of the ventilation system and the exhaust operation from the room is terminated (step S345).

Thereafter, the control unit of the ventilation system proceeds to step S300 and the operation sequence is repeatedly performed until the end signal is input.

Therefore, according to the present invention as described above, by using a heat storage material that causes a phase transition in the summer and winter when the temperature difference between the indoor and outdoor extremes to always maintain the temperature of the air supplied to the room at a proper indoor temperature to ventilate the indoor air To prevent energy loss.

In the above-described invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the invention. Thus, the scope of the invention should not be defined by the described embodiments, but should be defined by the equivalents of the claims and claims.

As described above, according to the present invention, by using a heat storage material that causes a phase transition according to the temperature of the inside and the outside air, the temperature of the air supplied to the interior is maintained at the indoor proper temperature, so that the indoor and outdoor temperature difference is extremely ventilated in summer or winter. It can save energy of heating and cooling by reducing energy loss.

Claims (6)

A duct through which outdoor and indoor air enter from outdoor and indoor, respectively; A heat storage material for converting heat energy of outside and inside air introduced into the duct into latent heat energy; And Rotating fan that rotates so that the outside air and the bet is introduced into the duct, Cooling and heating energy-saving ventilation system using the phase transition of the heat storage material is characterized in that the air supply or exhaust operation of the duct is determined by detecting the phase change temperature of the heat storage material. The ventilation system of claim 1, wherein the heat storage material is glycerol (Glycerol) that causes a phase transition at a temperature of 18 ° C. The cooling and heating energy saving ventilation system using the phase transition of the heat storage material, characterized in that the heat storage material is cetane (Cetane) causing a phase transition at a temperature of 20 ℃. The heating and cooling energy saving ventilation system using the phase transition of the heat storage material, characterized in that the temperature sensor for measuring the temperature deviation by the phase transition of the heat storage material. Air supplied to the air supply duct is supplied to a room temperature by the phase transition of the heat storage material; A heat storage material temperature measuring step of measuring a temperature deviation of the phase shifted heat storage material; And Saving air-conditioning energy by using a phase transition of the heat storage material, characterized in that the air supply of the outside air is terminated according to the temperature difference of the heat storage material and the heat storage material is exhausted in the exhaust duct so that the phase change back to the previous state. Ventilation method. The ventilation method of claim 5, wherein the heat storage material temperature deviation of the heat storage material temperature measuring step is ± 3 ° C. of the phase change temperature of the heat storage material.

Images