KR20020061551A - Heat recovery ventilator - Google Patents

Abstract

PURPOSE: An energy collecting type electric fan is provided to be easily installed and used on an upper end of a ceiling board. CONSTITUTION: An electric fan comprises an outer case(037) forming the exterior thereof; a random matrix rotary wheel assembly; a wheel and center frame assembly; a fan assembly for air supply and discharge; a driving motor, all of which are installed on an outside and an inside of the outer case with coupling parts so as to collect cold energy and heat energy of exhaust air and supplied to the supplied air by passing exhaust air and supplied air by one-to-one counter current so that the exhaust air and the supplied air exchange heat with each other and includes an automatic control device to automatically control the electric fan according to preset program.

Description

Energy Recovery Fan {HEAT RECOVERY VENTILATOR}

The present invention relates to an energy recovery ventilator, and more particularly, to recover the energy of the exhausted air and exhaust air in a way to reduce energy costs, which is an important part for effective ventilation in houses, buildings, and industrial facilities. The present invention relates to an air-to-air counterflow energy recovery type ventilator that can ventilate air by cooling or heating it to room air temperature.

As a result of the development of today's industrialized society, many people spend most of their day in mechanical air-conditioning facilities and suppress air ventilation as much as possible to conserve energy. Scientific evidence points to more serious contamination, and the development of building technology also significantly reduces the amount of air that is naturally ventilated through gaps in doors and windows, so that more than 80% of the daily routine is indoors. For most people in urban communities, they may be exposed to new health problems caused by indoor air pollution and the lack of oxygen in the air due to suppression of ventilation in dense spaces.

As a result, interest in ventilation that not only suppresses indoor pollutants, which are the main causes of air pollution, but also converts indoor air that is already polluted into fresh outside air has gradually been amplified. The equipment and related facilities have been developed one after another. In the case of such ventilation equipment, the environmental, safety and economic feasibility is fully reviewed according to the installation location and the purpose of treatment, and the energy recovery rate is maximized. Should apply.

Therefore, in the case of ventilation facilities installed in buildings, apartments and industrial facilities in urban areas, not only simple sensible heat recovery, but also dehumidification efficiency, winter heating energy in winter, and latent heat recovery to reduce humidification load are essential. Energy recovery type ventilator technology is how to effectively ventilate indoor air containing dangerous substances such as radon gas, which keeps the indoor environment in an optimal state because it is configured to cool the outside air in spring and autumn. Is the task.

Energy recovery type ventilation facilities have been developed steadily according to the necessity and market demand, and are classified into heat pipe type, plate type and rotary type according to the processing method and purpose. In case of rotary type, ROTARY HONEY COMB type and It is divided into ROTARY RANDOM MATRIX TYPE.

The principle of heat pipe applied to heat pipe type heat recovery type ventilator was discovered by an American scientist in the 1950s. When the special fluids such as freon and ammonia are enclosed in metal pipes, the thermal conductivity is greatly improved. This good thermal conductivity is about 1,500 times that of platinum and about 1,300 times that of copper.In 1964, NASA developed a very effective thermal conductor that used this principle to transfer a lot of heat even at very small temperature differences. In Korea, heat pipe heat exchanger using distilled water as heat medium has been put into practical use.

However, heat pipe has better performance than any existing heat conductor in the case of thermal conductivity and it can be used even at high temperature within about 600 ℃ when using special heating medium, but it is quite expensive but energy recovery using heat conduction Due to the nature of the method, the energy recovery efficiency is up to about 70%, and it is an integrated structure, which is influenced by the installation space such as entrance and exit due to its weight and external size. It is necessary to clean the gap, but if the cleaning time is missed, the maintenance is extremely difficult and there is a fatal disadvantage that performance and efficiency are gradually reduced due to the effect of dust deposited on the surface.

In the case of the plate type, the most common method is to form a multi-layered diaphragm with an aluminum plate having excellent thermal conductivity, and the air having a higher temperature as the exhaust from the room and the air supply from the outside pass between the plate and the plate in opposite flows. Energy recovery method using heat energy of conduction through aluminum plate to air of lower temperature, energy recovery efficiency is less than about 60%, considerably low and integral structure like HEAT PIPE TYPE. Therefore, it is not only affected by the installation space such as entrance and exit, but also difficult to check during operation due to its structure, and the plate gap should be cleaned regularly with water or compressed air.If the cleaning time is missed, maintenance is extremely difficult and due to the effect of dust deposited on the surface There is a fatal disadvantage that performance and efficiency are gradually reduced.

In addition, in the case of rotary honey comb type, it is made of a ceramic, which has excellent heat retention, as a raw material, and forms a honeycomb carrier with a geometrically large surface area to form a cylindrical rotary comb heat exchanger drum along the axis of rotation It is configured to rotate, and the exhaust heat retaining heat is absorbed by the rotating HONEY COMB surface, and then it is radiated to the air supply side according to the rotation to repeat the heating and cooling.

However, the same structure as HEAT PIPE TYPE or PLATE TYPE, which is a one-piece structure and its external size is large compared to its performance, so it is not only affected by the installation space such as inlet and outlet, but also difficult to check during operation due to the structure and should be frequently cleaned with water or compressed air. If you miss the time and get stuck, there is a maintenance problem that can not be cleaned and the air inside the rotating HONEY COMB is moved to the opposite side to carry out the fatal disadvantage.

Therefore, it is difficult to provide sufficient ventilation in the industrialized urban environment, and upgrade existing development and performance that can recover and recycle the cold and heat energy input to cool and heat the indoor air discharged during ventilation. Steady R & D is required.

1 is an "air-to-air heat transfer heat exchanger" filed by the present applicant and registered in Korean Patent No. 157214, filed on July 28, 1998, having a diameter of 25 to 150 microns using a fiber mat having excellent heat retention. , Filaments with a specific gravity of 1.38, a thermal conductivity of 0.138 (watts / m ° K), and a specific heat of 1340 (j / kg ° K). ROTARY RANDOM MATRIX TYPE is a heat recovery type ventilator that is molded and used as a heat exchange element.It transfers heat to the surface area between the matrix heat exchange elements in which the exhausted heat is rotated, and radiates heat to the air supply side by rotating the matrix. Heat energy is formed on the surface of the heat exchange element passing through the exhaust side, and then moved to the air supply side by the rotational movement and absorbed by the air supply again. It is called enthalpicathene because it shows the effect of passing through the heat energy, and in the present invention, it is further developed to be at the top of the ceiling of the indoor space, which is bound to be restricted by the installation space such as buildings or apartments in a highly industrialized urban environment. The purpose is to provide a high performance energy recovery type ventilation system that can be easily installed and used.

Another object of the present invention is that the conventional energy recovery type ventilation facility merely recovers the heat and energy of the exhaust gas during cooling and heating, but in the spring and autumn, it senses the temperature of the outside air and the temperature of the room, depending on the situation. By adjusting the recovery rate to create a comfortable indoor environment always provides an energy recovery type fan that can exhibit excellent performance.

Another object of the present invention is to configure the control system so that all operation processes of the energy recovery type ventilation facility are operated with accurate data, and microcomputer the automatic control system for each process to efficiently manage the whole process. To provide a processing system that can be.

Therefore, the present invention is inserted into the structure that can be easily removable random matrix heat exchanger element 002 separated into several pieces on the 內 side of the WHEEL (004) of the disk shape having a certain thickness specially manufactured to achieve this object. The grid-shaped mesh (003) is formed on both sides so that the matrix heat exchanger element does not fall out during operation, and the grid-shaped mesh is a support frame (010) that blocks the exhaust side and the air supply side while the heat exchanger WHEEL (001) is rotating. RANDOM MATRIX ROTARY WHEEL ASS'Y means, which consists of a structure that minimizes the rapid and double-ventilation, as it rotates while always in contact with the intersection.

RANDOM MATRIX ROTARY WHEEL ASS'Y (001) is a shaft (008) and two bearings (009) is inserted into the central hole (013) and the two support frame (010) at the front and rear of the wheel, It is firmly fixed to the MOUNT BLOCK (007) at the lower part, and the outer frame part of the heat exchanger WHEEL (001) is composed of a center frame (006) separating the front and rear of the wheel and the center frame (006) "WHEEL & CENTER FSAME ASS'Y means" in which the SEAL 005 having a structure in which the tension is adjusted by the tension spring 084 between the heat exchanger WHEEL 001 is configured to maintain the airtightness before and after the WHEEL.

Before and after the above WHEEL & CENTER FRAME ASS'Y means, the air exhauster 016 has an IMPELLER (019) structure in which the exhaust gas discharged from the indoor side and the air supply flowing from the outdoor side can be exchanged with each other in a 1: 1 counterflow. ) FAN ASS'Y MEASUREMENT FOR EXHAUST AND EXHAUST, WITH BLOWER UNIT 015, WITH MOTOR (017) AND IMPELLER HOUSING (018) INTEGRATED ASSEMBLY CONSTRUCTED.

The groove of the random matrix heat exchange element WHEEL (001) is recessed in a groove 014, and the timing belt 012 is mounted in a structure that surrounds the outer edge of the wheel. The motor of the front lower part of the WHEEL & CENTER FRAME ASS'Y means described above. It is connected to the TIMING PULLEY (026) of the driving motor (025) fixed to the MOUNT (024) and is configured to rotate and attached together with the bearing (028) to the TENSION GUIDE (027) given elasticity by the tension spring (034). The TENSION ROLLER 027 maintains a constant tension of the timing belt so that the random matrix heat exchange element WHEEL is stably maintained at a constant RPM.

In addition, the microcomputerized control device includes the conditions of indoor temperature, external temperature and air supply temperature, contamination status of PRE FILTER (080) and RANDOM MATRIX heat exchange element (002), operation status of each part of the device, and alarm condition of the device. It is an object of the present invention to provide an energy recovery type fan configured by "automatic control means" which is inputted by a program and controlled automatically by a set program.

1 is an exploded perspective view of a conventional heat exchanger.

2 is an exploded perspective view of the energy recovery type fan according to the present invention.

3 is a perspective view of a WHEEL & heat exchange element ASS'Y according to the present invention.

4 is an exploded perspective view of a WHEEL & CENTER FRAME ASS'Y according to the present invention.

5 is an exploded perspective view of a fan and exhaust fan assembly according to the present invention.

6 is an exploded perspective view of a driving motor ASS'Y according to the present invention.

7 is a perspective view of the assembly completed in a standing state according to the present invention.

8 is a flow chart of the supply and exhaust air according to the present invention.

9 is an assembled perspective view of the lying state according to the invention

10 is a view of installing a single-layer ceiling in accordance with an embodiment of the present invention.

11 is a ceiling installation diagram of a plurality of floors according to an embodiment of the present invention.

12 is a wall-mounted installation of the porch, etc. according to an embodiment of the present invention

13 is a block diagram of an automatic control microcomputer circuit board according to the present invention.

※ Explanation of code about main part of drawing ※

001: WHEEL 002: Random Matrix Heat Exchanger 015: FAN ASS'Y

023: Drive motor ASS'Y 044: O.A 049: S.A 051: R.A 056: E.A

The present invention basically uses the RANDOM MATRIX heat exchanger element, the core technology of the "air-to-air heat transfer heat exchanger" filed by the present applicant and registered in the Republic of Korea Patent 157214 to limit the installation space of buildings or apartments in a highly industrialized urban environment The purpose of the present invention is to provide a high-performance energy recovery type ventilation facility that can be easily installed and conveniently used at the top of a ceiling plate of an indoor space, which will be described in detail with reference to the accompanying drawings. As follows.

7 is a perspective view showing the completed assembly of the assembled state of the standing state according to the present invention, the front cover (038) showing the assembled state and the detached state, as shown, the energy recovery type ventilator of the present invention is an outer case (037) The outer body is formed inside and outside of this case, and the RANDOM MATRIX ROTARY WHEEL ASS'Y means, WHEEL & CENTER FRAME ASS'Y means, which are detailed in the exploded view of FIG. 'Y means', 'drive motor ASS'Y means' and PRE FILTER (080), operation switch (082), DAMPER (040, 041), and fastening parts are firmly assembled inside and outside of the case. Except the driving part, the front and back sides are composed of the same symmetrical structure based on the WHEEL.

FIG. 8 is an air flow diagram illustrating a process of transferring heat through heat exchange while supply and exhaust flow in opposite flows in the energy recovery type fan according to the present invention, and with reference to the illustrated drawings. More detailed description is as follows.

In the pilot unit, the processing air flow was about 500㎥ / HR, the passing wind speed of the heat exchanger was about 0.5-3M / SEC, and the ratio of air supply and exhaust was 1: 1. As the random matrix heat exchange element WHEEL 001 is rotated by the timing belt 012, the rapid and exhaust fan (047, 054) is operated, so that the first air flow exhaust (051) is connected to the RA (RETURN AIR) side duct. After the inflow through the RA DAMPER (052), the random matrix heat exchange element (050) passes through (053) while removing the 冷 and 熱 energy, and exhausts it by means of the exhaust fan (054) and the EA (EXHAUST AIR) DAMPER (056) and exhaust duct. Is discharged to the outside by the second air flow at the same time through the OA DAMPER (045) connected to the OA (OUTDOOR AIR) side duct is recovered from the exhaust on the surface of the rotating random matrix heat exchange element (050) Absorb (045) the absorbed energy By FAN (047) is introduced into the room by the SA (SUPPLY AIR) DAMPER (049) and the air supply DUCT so that the exhaust air and supply air that is the sending and receiving of thermal energy ventilation flows into mutual counterflow.

The present invention basically provides a high-performance energy recovery type ventilation facility that can be easily installed and used at the top of the ceiling plate of the indoor space that is bound to be limited by the installation space, such as buildings and apartments in a highly industrialized urban environment. Therefore, the energy recovery type ventilator according to the present invention can be installed at the top of the ceiling of the building as shown in FIG. It is usually installed on the lower part of the concrete floor by the method of fixing the main body 85 by using a hanger (058) by the UNDER FLOOR TYPE. The exhaust of the first air flow is the RA diffuser (057) installed on the ceiling plate (059).冷, 熱 energy is recovered from the energy recovery fan of the present invention through the indoor exhaust duct (064) and then discharged to the outside through the outdoor exhaust duct (062). 2 The airflow of the air flows through the outdoor air supply duct (061) and receives the heat and energy recovered from the exhaust in the energy recovery fan according to the present invention, so that the temperature is similar to that of indoor air. ) And the SA diffuser (065) to be supplied to the room can exhibit an energy recovery type ventilation effect and the energy recovery ventilator according to the present invention can be installed in a parallel structure in multiple layers as shown in FIG. In addition, if it is difficult to install in the ceiling, such as apartments, as shown in Figure 12 may be installed by installing a shelf on the wall, such as a veranda.

In addition, when used for cooling air in spring and autumn, the random matrix heat exchanger element WHEEL (001) is stopped automatically or manually, and only the supply and exhaust fan (047, 054) is operated to discharge the muddy air in the heated room and introduce fresh air. By ventilating, you can maintain a pleasant indoor environment and prevent damage caused by spring dust and pollen.

Therefore, the microcomputerized control device for operating the energy recovery type ventilation facility according to the present invention in an optimal state at all times is "microcom circuit board" and "operation operation key input unit" and "as shown in detail in FIG. It is divided into "Remote control switch", and the microcomputer circuit board has "power input part" which supplies main power, "power control output part" which supplies power and exhaust fan and wheel drive motor and lighting, and signal of temperature sensor and differential pressure switch. It consists of a "sensor input unit" and "information output unit" for inputting.

The air supply / exhaust fan supplied with power from the power control output part has three speeds such as HIGH, MED, and LOW, so the ventilation volume can be adjusted as needed, and the driving motor of the heat exchange element WHEEL has a rotation speed of about 10 WHEEL. It was operated at -40RPM, and it was configured to supply power to the indoor lighting when checking the equipment.

Signals of the differential pressure switch and the temperature sensor are input to the sensor input part, and a temperature sensor for detecting air (051) exhausted from the room is installed in the RA side DAMPER (052), and a temperature sensor for sensing the temperature of the outside air (044) 0.A side DAMPER (045) installed in the outside air (044) is passed through the heat exchange element (046) of the air (048) is converted to a temperature almost similar to the room temperature by the heat, energy recovered from the exhaust (048) The temperature sensor for detecting the temperature is installed in the DAMPER (049) on the SA side and detects the air pressure before and after the PRE FILTER and the random matrix heat exchanger, and inputs a signal to the differential pressure switch operated by the differential pressure.

Operation mode is divided into manual operation, automatic operation, air cooling, and going out, etc. In manual operation mode, it is configured to operate by setting user's ON, OFF and HIGH, MED, LOW setting arbitrarily.

The automatic control micom circuit board according to the present invention basically includes a clock function and a timer function, and the automatic operation mode can be divided into a home function and an OFFICE function by DEEF S / W on the circuit board.

When the device set to the HOME function is operated in the automatic operation mode, it is HIGH from 6 am to 10 am, MED from 10 am to 4 pm, HIGH from 4 pm to 8 pm, and from 8 pm to 11 pm Lost MED can be set to run LOW from 11 pm to 6 am the next day.

When the device set as OFFICE is operated in the automatic operation mode, it can be set to be HIGH during business hours from 8 am to 6 pm, MED from 6 pm to 10 pm, and turned off from 10 pm to 8 am the next day. .

Normally, the device is operated by automatic or manual operation, but if the room temperature is set to 25 ℃ in spring and autumn and operating in the air cooling mode, if the outside temperature is above 1 ℃ below the room temperature It automatically switches to the external air cooling mode to stop the random matrix heat exchanger element WHEEL (001), and operates only the supply and exhaust fan (047, 054) so that the room can be cooled by the outside air and the room temperature is 2 ℃ or lower than the set temperature. When the temperature falls below 1 ° C and the temperature difference between the inside and outside is less than 1 ° C or the outside temperature is higher than the room temperature (when the air conditioner is operated), the random matrix heat exchanger WHEEL (001) always operates, so it is possible to recover 冷 and 熱 energy. It is configured to be controlled automatically.In case of outdoor cooling, the air volume can be controlled only by manual operation. Release according to the desired temperature, set temperature, even if only requiring a cooling machine is automatic operation is possible within the same temperature range.

The outing mode is applied when the home or office is vacated for a long time due to vacation, etc. In the outing mode, it operates at about 1 hour at 10 am and 6 pm to keep the odor from accumulating in the room and keeping it from being damp. It is also configured to manually operate the energy recovery fan of the present invention remotely just before returning home via a telephone connected to the information output terminal.

And since the most vulnerable part of the energy recovery ventilator is the equipment that always ventilates the indoor and outdoor air, contamination of the PRE FILTER and RANDOM MATRIX heat exchange elements due to the incoming dust is inevitable, and in the case of the energy recovery ventilator according to the present invention, It is appropriate to clean the inspection once every 3 months, but if yellow dust and pollen is blown in spring, the inspection period may be shorter depending on the place of use. Can have an absolute impact on lifespan.

Therefore, the clock and timer functions built into the microcomputer circuit input a basic inspection cycle into the microcomputer circuit so that the filter inspection alarm is activated periodically after about 3 months, and the inspection cycle can be adjusted by DEEF S / W. In addition to the method, the material of the PRE FILTER and the random matrix heat exchange element applied to the present invention has its own static pressure loss and the static pressure loss increases gradually due to foreign matter such as dust during operation, so the differential pressure between the PRE FILTER and the random matrix heat exchange element is always increased. When the difference is more than 10mmAq-30mmAq, the filter check alarm is activated, so even if it is not a regular inspection interval, it can be cleaned immediately when foreign matters are clogged up depending on the surrounding environment. have.

In addition, in the energy recovery type ventilation facility according to the present invention, energy recovery of 90% or more based on the sensible heat recovery is possible at the time of normal operation. Therefore, RA (051), which is the air exhausted from the room during normal operation, and SA (048), which is the air flowing into the room, are used. The temperature difference is about 1 ℃, and if the timing belt (012) is worn and the random matrix heat exchange element WHEEL (001) is remarkably slowly rotated, the amount of energy in the room, the amount of energy to escape to the outside will increase Since the amount of recovery is reduced, the difference between RA temperature and SA temperature is increased, and when the timing belt is broken or the driving motor (025) is broken or the wheel is not rotated, the outside temperature is introduced into the room as it is. In the present invention, the exhaust fan is basically designed so that normal performance appears when the ratio of exhaust and air supply is 1: 1. Either supply FAN is also going be a R.A S.A temperature and the temperature difference, even if all the failed or fail.

Therefore, if the device does not operate normally or any part breaks down, the result is the result of the difference between the RA temperature and the SA temperature. Therefore, the temperature difference is set by the temperature sensors installed in the RA side DAMPER (052) and the SA side DAMPER (049). Can be configured to operate when the temperature difference is over 3 ℃. In case of outside air cooling in spring and autumn, the RA temperature and SA temperature difference can be over 3 ℃. The interlock circuit is to be configured, and the main body is configured to be operated by a wired or wireless remote controller due to the nature of being installed in the upper part of the ceiling.

Therefore, according to the energy recovery type ventilator of the present invention, the present invention is further developed by the applicant and registered in Korean Patent No. 157214, which is a highly industrialized city utilizing the core technology of RANDOM MATRIX heat exchanger. In addition to providing a high-performance energy recovery type ventilation facility that can be easily installed and conveniently used on the top of the ceiling of an indoor space that is constrained by installation spaces such as buildings or apartments in the environment, it is also possible Cooling is also possible, and it is possible to show the excellent performance of energy recovery type ventilation equipment by the fully automatic control system that has all the functions.

In addition, due to the characteristics of the rotary type ventilation system using a random matrix heat exchange element, it is possible to recover not only sensible heat but also latent heat in the exhausted indoor air, thereby exhibiting excellent thermodynamic performance.

Another effect of the present invention is that the front and back of the RANDOM MATRIX heat exchange element WHEEL as a base is composed of the same symmetrical structure, so when installing the equipment on the ceiling of the building indoors according to the installation environment, such as space for maintenance The same performance can be achieved regardless of which direction the side duct and the outdoor duct are connected to, and the energy recovery type ventilation is performed according to the installation conditions in any environment. It can be applied as a facility.

Therefore, although the invention has been shown and described with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various modifications and changes can be made without departing from the spirit and scope of the invention as indicated by the appended claims. Anyone can grow up easily.

Claims (15)

The outer body is formed by an outer case (037), and inside and outside of the case, a WHEEL & CENTER FRAME ASS'Y means is formed around the RANDOM MATRIX ROTARY WHEEL ASS'Y means. The fan ass'y means and the driving motor ass'y means are firmly assembled to the inside and outside of the case together with the fastening parts.冷, 熱 "Automatic control means" that are installed to apply the appropriate "installation means" according to the site conditions and operate automatically by the set program in the ventilator that collects and delivers energy to the air supply and ventilates it. Energy recovery type fan, characterized in that. The method of claim 1, wherein the RANDOM MATRIX ROTARY WHEEL ASS'Y means has a random matrix heat exchange element 002 inserted into the front side of a disk-shaped WHEEL 004 having a predetermined thickness and inserted into pieces. The back and the back are formed of a grid-like net (003) so that the heat exchange element (002) does not fall out, and an energy recovery type is characterized in that the outer surface (022) is provided with a groove (014) for mounting a belt. Ventilator. The method according to claim 2, wherein the random matrix heat exchange element (002) is separated into several pieces and is inserted into a structure that is removable inside the WHEEL (004) is easily removed through the check hole 39 and washed again Energy recovery type fan, characterized in that the heat exchange element that is inserted or worn for a long time can be easily replaced. The lattice-shaped mesh 003 has a structure in which the back surface of the grid is fixedly formed with the WHEEL and the front surface is detachable with the heat exchange element 002. When WHEEL (001) rotates, it is arranged to rotate with surface contact at any angle with SUPPORT FRAME (010) which blocks the exhaust side and the air supply side, so it is configured to minimize ventilation performance that can occur between supply and exhaust sides. Energy recovery type ventilator characterized in that. According to claim 1, wherein the WHEEL & CENTER FRAME ASS'Y means is a random matrix heat exchanger WHEEL (001) is firmly fixed by the front and rear two support frame (010) and the MOUNT BLOCK (007) of the upper and lower ends, In the outer outer part of the device WHEEL (001), two sets of CENTER FRAME (006) on both sides separate the front and the rear of the WHEEL (001), and the inner diameter side of the center frame (006) is a double diaphragm. It is a structure and the SEAL (005) of the structure that the tension is adjusted by the tension spring (084) is inserted into the surface contact structure to the outer diameter surface (022) of the WHEEL (004), so it is possible to maintain the air tightness before and after the WHEEL (001) Energy recovery type fan, characterized in that configured to. According to claim 1, The "FAN ASS'Y means for supply and exhaust" is a blower unit (015) in which the IMPELLER (019), the MOTOR (017) and the IMPELLER HOUSING (018) is integrally assembled to the air chamber (016) It is installed in the symmetrical direction on the front and back of `` WHEEL & CENTER FRAME ASS'Y Means '', and the motor (017) assembled to the motor bracket (020) can be inserted in the center of the IMPELLER HOUSING (018). There is HOLE (086) and change the depth of IMPELLER HOUSING (018) to HOLE (086) of IMPELLER HOUSING (018) by changing the IMPELLER (019) thickness of the same outer diameter to 40T, 30T etc. Since it is applied to the maximum air flow blower unit (087), the medium air flow blower unit (088), and the minimum air flow blower unit (089), the parts made with the same mold can be used in common. Energy recovery type ventilator. The method of claim 1, wherein the drive motor ASS'Y means is a method for rotating the random matrix heat exchange element WHEEL (001) is a groove 014 is formed in the outer periphery of the WHEEL (004), the timing belt (012) ) Is installed in a structure surrounding the outside of the wheel and is connected to the timing pulley (026) of the driving motor (025) fixed to the motor motor (024) .It is configured to rotate around 10 ~ 40rpm and the tension spring (034) The tension of the timing belt is always kept constant by the tension roller (028) attached to the tension guide (027), which is given elasticity by), and the random matrix heat exchange element WHEEL (001) is stably fixed. Energy recovery type fan, characterized in that configured to maintain the RPM. The method of claim 1, wherein the "installation means" is installed in the UNDER FLOOR TYPE by laying on the top of the ceiling of the building, such as the office of the building, so that the installation space is restricted in the urban environment that can not be limited to the installation space easily It can be installed in a parallel structure on multiple floors, or it can be installed in an apartment or the like as a wall texture type.In addition, it can be installed in a mushroom or a silkworm and installed as an upper tooth type, so it can be installed in either a horizontal or vertical direction. Energy recovery type exhaust fan characterized in that the structure can be installed in any place according to the direction of the exhaust pipe according to the situation. According to claim 1, wherein the automatic control means is composed of a microcomputer circuit board, operation operation key input unit and a remote control switch, the microcomputer circuit board is composed of a power input unit, a power control output unit, a sensor input unit and an information output unit. The microcomputerized control device basically includes a clock function and a timer function, the condition of indoor temperature, external temperature and air supply temperature, contamination status of PRE FILTER (080) and RANDOM MATRIX heat exchange element (002), operation of each part of the device. The status and alarm status are input by SENSOR and interlock contact point and are controlled automatically by the set program. The operation mode is manual operation, automatic operation, air cooling, outing, etc. The alarm mode is divided into a filter check and a device check. Energy recovery type fan, characterized in that the wired or wireless remote control. 10. The differential pressure of the air before and after the pre-filter and the random matrix heat exchange element is connected to the sensor input unit, wherein the signal cable of the temperature sensor installed in the exhaust filter (052), the air supply filter (049), and the air filter (045) is connected to the sensor input unit. Energy recovery type ventilator characterized in that the signal of the differential pressure switch is activated by the automatic control according to the program input to the microcomputer circuit by the information on the temperature and air pressure of each part is input. The method of claim 9, wherein the automatic driving mode can be switched to the home function and the OFFICE function by DEEF S / W. The HOME function is a driving mode suitable for general characteristics of a house. This time is set to MED during the day, LOW at night for bedtime, and the OFFICE function is a driving mode that fits the general characteristics of the work space. It is HIGH during the working hours, MED in the evening when there are night shifts, At night without people, the energy recovery type fan is automatically controlled according to a program input to the microcomputer circuit, such as OFF. 10. The method of claim 9, wherein the air cooling mode detects the indoor temperature and the outdoor temperature in the spring and autumn, and automatically turns on / off the heat exchanger WHEEL (001), thereby providing room cooling using indoor air. If the exhaust fan is still in operation and the indoor temperature is higher than the set temperature and the outside temperature is lower than the room temperature by 1 ℃, stop the heat exchange WHEEL (001) and the indoor temperature is lower than the set temperature or the temperature difference between the room and the outside is 1 Energy recovery type ventilator, characterized in that the heat exchanger WHEEL (001) is configured to operate when the temperature within the ℃ or the outside temperature is higher than the room temperature. The method of claim 9, wherein the outing mode is a driving mode for ventilating the room by operating HIGH at about 1 hour in the morning and afternoon when the home or office is emptied for a long period of time, and immediately before returning home via a telephone connected to the information output terminal. Energy recovery type fan, characterized in that configured to be operated in operation. The filter check mode of claim 9, wherein a basic check period is inputted to periodically operate the check lamp LED lamp by a clock function and a timer function built in the microcomputer circuit board, and the check period can be adjusted by DEEF S / W. Energy recovery type ventilator characterized in that the filter check LED lamp is operated when the air pressure is different than the set differential pressure before and after the pre filter and the random matrix heat exchange element are blocked depending on the installation environment even if the periodic inspection cycle is not performed. The apparatus check mode of claim 9, wherein the apparatus check LED lamp is turned on when the temperature difference between the RA (051), which is the air exhausted from the room, and the SA (049), which is the air flowing into the room, exceeds a predetermined temperature. In the air cooling mode, an interlock circuit is configured such that the device inspection LED lamp does not light even if the temperature difference between the RA (051) and the SA (049) exceeds a set temperature.