KR101007536B1 - High efficient compact and slim type heat recovery ventilator - Google Patents

Abstract

According to the present invention, a flow path through which air is passed through the exhaust fan and the air supply fan are formed to face each other in a diagonally symmetrical direction in a one-piece case in which the volume is reduced to a space-saving flat approximately square box shape. The heat recovery type heat exchanger is porous, which is a high-efficiency heat transfer material, which has a large specific surface area, which greatly improves the heat and moisture transmission power, and improves the purification efficiency and dehumidification effect to filter out foreign substances mixed in the air. By constructing a heat recovery type ventilator with a high efficiency heat storage heat exchanger formed by passing through a small diameter through-hole with main materials as fly ash (graphite) or graphite with sensible and latent heat storage functions, Regarding construction restrictions such as size, ceiling height and ceiling duct installation While saving space without ever present invention relates to a heat recovery type ventilating device with an efficiency Heat to maximize the residence time and the contact area between the indoor and outdoor air induction.

Heat recovery ventilator, Regenerative heat exchanger, Fly ash, Quartz, Space saving, Square box, Porous, S-channel line, Purification filter, Heat exchange, Through hole, Heat storage, Air purification, Dehumidification

Description

Heat recovery type ventilator with high efficiency heat exchanger {High efficient compact and slim type heat recovery ventilator}

The present invention relates to a heat recovery type ventilation apparatus having a high efficiency heat storage type heat exchanger,

More specifically, the flow path through which the exhaust fan and the supply fan are positioned in a diagonally symmetrical symmetrical arrangement with respect to the heat recovery type heat exchanger in a one-piece case in which the volume is reduced to a space-saving flat approximately square box shape. The heat recovery type heat exchanger is porous, which is a high-efficiency heat transfer material, which has a large specific surface area, which greatly improves the heat and moisture transmission power, and improves the purification efficiency and dehumidification effect to filter out foreign substances mixed in the air. By constructing a heat recovery type ventilator having a high efficiency heat storage type heat exchanger formed by passing through a small diameter through hole in the transverse direction using fly ash (graphite) or graphite of sensible heat and latent heat storage functions,

Regardless of the construction constraints such as the size of the space to be installed, the ceiling height, and the installation of the ceiling duct, the heat recovery type ventilation device is equipped with a high efficiency heat storage type heat exchanger that is space-saving and maximizes the residence time and contact area of indoor and outdoor induced air. It is about.

The ventilation system is related to indoor air quality by each government department through the Ministry of Environment's Indoor Air Quality Management Act, etc., the Ministry of Health and Welfare's Housing Act, the Ministry of Health and Welfare's Public Health Control Act, and the Ministry of Education and Human Resources Development's School Health Act. As the recommended standards and maintenance standards have been steadily strengthened, mandatory installation is currently in place.

Therefore, indoor air quality management is expanding not only for public facilities but also for private facilities, and the installation of ventilation systems for multi-use facilities for more than 100 households such as apartments, multi-purpose apartments, and schools has become mandatory. The demand for energy-saving high-tech ventilators that can purify the air while minimizing cooling and heating energy losses through heat exchange between indoor and outdoor air in a space is greatly increasing.

However, the conventional ventilation system discharges the indoor polluted air to the outside and simply introduces fresh air from the outside. Therefore, the polluted and heated indoor air is discharged as it is, and the cold outside air enters, resulting in high energy consumption due to temperature difference. It increased the load.

As a ventilator that solves the above problems, a heat recovery type ventilation system capable of reducing the heating and cooling load by the ventilation has been introduced by recovering energy from the exhausted air in order to save energy while performing necessary ventilation.

       Normally, heat recovery type ventilator is an energy-saving advanced ventilator that minimizes heating and cooling energy loss and purifies the air through heat exchange between indoor and outdoor air in an enclosed space such as an apartment. It is a structure that supplies the stored heat and moisture to the room while storing it and supplying it again for a certain time.

 However, the heat recovery type ventilation system is inconvenient and expensive to install due to the nature of Korean apartments or multi-use facilities with low ceiling heights and complicated duct piping. There is a problem of the hassle and economic burden to replace the machine, the construction period is long, the productivity is bad, and the ceiling and low space had a problem in construction constraints.

The present invention is a ventilation system that satisfies the indoor air quality management standards that provide the necessary ventilation according to the use of the multi-use facility as a closed space to spend all the time while solving all the problems of the prior art described above,

Prior Patent Invention Patent No. 10-0727227 (Registration Date: June 04, 2007) has been invented "heat storage type heat exchanger for ventilation device", as shown in Figures 1 to 3,

An exhaust port 32 and an air supply port 22 are formed at both ends of the exhaust unit 30 and the air supply unit 20, respectively, and a long, flat, narrow width having a hinged opening / closing cover 11 formed at the main body 12. In the center of the rectangular case is a carbon (charcoal) material made of microporous material, and the center of the heat exchanger body 41 has a plurality of circular through-holes 42 formed on both sides of the heat exchanger 40 at equal intervals. The air supply fan 21 is connected to the air supply unit 20 on one side that communicates with the air supply port 22, and the air exhaust fan 31 is connected to the other air exhaust unit 30 through which the exhaust port 32 communicates. It is provided with a mechanical configuration of the rectangular ventilation device 10 to improve the heat transfer efficiency while improving the blowing capacity,

Porous carbon body heat exchanger (40) compression-molded charcoal has a heat storage to minimize the temperature difference between the inside and outside, dehumidification of humidity control, air purification function to purify polluted air, water resistance to block moisture and passing air or gas It is a composite synergy effect that combines the material properties and mechanical properties by implementing complex functions such as breathability, heat insulation to block hot or cold air, and health functions of far-infrared rays and anion release, which are beneficial to health.

However, even though this also has a complex effect due to the organic combination of the external structure and material characteristics of the heat recovery type exchange device, the overall product is formed in a rectangular shape, which not only looks beautiful but also increases the length of the product. In narrow areas such as apartments, it is difficult to install, and the arrangement of plural supply and exhaust fans is arranged in line with the heat exchanger, so the length of the ventilator is long, and the supply and exhaust air flow is almost in line with the heat exchanger. As the amount of bypass of the city air is high, heat exchange efficiency is lowered, and char and carbon are formed as an addressing material, which is expensive, and the filter installation space in the ventilation device is narrow because it has to depend on imports.

     Therefore, the present inventors have completed the present invention as an improved invention as a result of efforts to solve the problems comprehensively while maintaining the advantages of the ventilation system technology invented by the prior art.

As described above, the heat recovery type ventilation apparatus of the related art has various problems to be improved.

Regardless of the size of the space to be installed, the ceiling height, or the installation of the ceiling duct, it is space-saving and can maximize the residence time and contact area of indoor and outdoor induction air while using high-efficiency, economical heat recovery heat storage materials. There is a technical problem to develop a ventilator that can be easily installed and be equipped with related parts such as filters by making it beautiful and short in length.

       The present invention has been made to solve the above problems,

It has the ability to mount parts that can cover many parts with short lengths so that there are no construction restrictions such as ceiling height and ceiling duct installation.

 It has the resource recycling effect of sensible heat and latent heat storage function, and has a porous, fly ash (graphite) or graphite (large specific surface area) as the main raw material. The S-line flow path is symmetrically opposed to the exhaust fan and the supply fan in a diagonally symmetrical direction, with a focus on the total heat exchanger which improves the heat exchange efficiency and filters the foreign matter mixed in the air and improves the dehumidification effect. While maintaining a sufficient static pressure and air flow rate, the contact residence space on the flow path through which air passes and the residence time are extended,

It is an object of the present invention to provide a heat recovery type ventilator having a high efficiency heat storage heat exchanger organically combined with a large specific surface material and structural characteristics maximizing the residence time and contact area of induction air.

The present invention thus achieved,

In addition to the heat storage heat exchanger that maximizes the residence time and contact area of air formed of high-efficiency, high specific surface area material, the S-line flow path is formed to maximize the heat exchange efficiency of the heat storage heat exchanger. At the same time increasing the contact residence space and residence time on the passage,

  It is easy to install, economical and shorten the construction time by constructing an integrated rectangular case that is space-saving and easy to construct due to the component mounting ability that can cover many parts even though the length is short. By realizing productivity improvement effect regardless of construction place regardless of construction place,

It is a composite synergy effect that combines the material characteristics of the heat exchanger device and the structural characteristics of the air flow designed to effectively expand the contact area of the airflow.

As a single-function ventilator with reduced volume, the building can be easily installed and used even in limited spaces, which are obligatory to install ventilation devices. There is a useful effect that can effectively reduce the heating and cooling load.

         DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The detailed description of the configuration of the present invention will be given below with reference to the accompanying drawings. In the following description, detailed descriptions of well-known functions will be omitted.

The present invention is a heat storage heat transfer type formed with a plurality of circular micro-diameter through-holes 42 at equal intervals up, down, left, and right in a rectangular case in which a volume is reduced to a flat box (box) shape consisting of a body 102 and a hinged closing cover 101. The air supply fan 121 is connected to the air supply unit 120 on one side of the exchanger 140, and the exhaust fan 131 is connected to the air exhaust unit 130 on the other side of the exhaust port 132. In the heat recovery type ventilator having a heat storage type heat exchanger provided in a staggered bilateral symmetry,

The heat storage type heat exchanger (140) is a porous material with sensible heat and latent heat storage function, and has a resource recycling effect. The additives are mainly mixed with fly ash (fly ash, or coal ash) or graphite (graphite) having a large specific surface area as a main raw material. Maximize dehumidification efficiency, air purification efficiency,

Between the air supply 122 and the air supply fan 121, the exhaust port 132 and the exhaust fan 131, the air supply filter 123 and the exhaust filter 133 of the dust and dust adsorption function are respectively installed in communication with the air flow, Contact exhaust space and residence time on the flow path through which the air passes while maintaining a sufficient static pressure and air volume by forming an S-shaped ventilation line (flow path) in which the exhaust fan 131 and the air supply fan 121 are diagonally intersected symmetrically. It is characterized by a heat recovery type ventilator having a high efficiency heat storage type heat exchanger configured to widen.

In addition, the manufacturing method by the raw material composition of the heat storage type heat exchanger,

30 to 40% by weight fly ash as the main environmentally friendly material, 40 to 50% sodium silicate as binder, or 30 to 40% potassium silicate, other vermiculite Vermiculite: 5-6%, 8-16% of ILLITE, and 3-15% of water, press-molded at 50-80 kg / ㎠G using a press without firing, without firing It is dried for 80-120 hours at 150 ℃

Sodium Silicates or Potassium Silicate are placed in a pressure kneader, water is added, and then fly ash, vermiculite and ILLITE are slowly mixed and uniformly kneaded. Will be molded.

At this time, the components of the fly ash (Fly Ash) by weight ratio of SiO ₂ 57.09%, Al ₂ O ₃ 24.66%, Fe ₂ O ₃ 10.5%, CaO 2.58%, MgO 1.37%, SO ₃ 0.94%, other residual amount,

Since fly ash is a spherical particle, it has a low viscosity with the same amount of molding material. Therefore, the ratio of sodium silicate or potassium silicate, which is an organic binder, is 30-50% (by weight of the total raw material). If less than 30% is preferred, the strength is weakened, and if it exceeds 50%, there is a problem in formability.

Also, potassium silicate (liquid potassium silicate) is an aqueous solution prepared by melting SiO and KCo (potassium carbonate) in a high temperature furnace, and the chemical formula is KO.nSiO.mHO.

     Sodium silicate (sodium silicate) is the most widely used inorganic compound among water-soluble silicates and is represented by the molecular formula of Na2O-nSiO2-xH2O, and is also called water glass because of its solubility in water.

      Illite is a soft mica mineral that emits far-infrared rays and has the function of removing odors and bacteriostatics (viruses, bacteria, etc.).

      Vermiculite (vermiculite) as an expandable mineral is a mineral produced by weathering or hydrothermal alteration of biotite, and water molecules are bound therein. Pores are formed

It will expand up to 20-40 times the volume of the gemstone.

When FLY ASH is mixed with special adhesives such as silicate silica or sodium silicate, the powder fills the pores, reducing the amount of adhesive required and having the appropriate strength and absorption rate. Lightweight, sound absorption, heat insulation, adsorption, corrosion resistance, When pressure molding at room temperature by adding vermiculite (vermiculite) having deodorizing properties, pores are formed in the whole raw material, the weight per unit volume is reduced, and the moisture and heat storage action are increased. A highly efficient regenerative total heat exchanger based on (fly ash) is produced.

      50-80 kg / cm2 G is preferably applied when the inorganic adhesive is mixed with vermiculite (vermiculite), which is an expandable mineral, and under the above pressure conditions, a binder such as kali silicate or sodium silicate is sandwiched between vermiculite and fly ash particles. The bond strength of the mechanical properties is improved and dried for 80-120 hours at 150 ℃ temperature, the fly ash is dried at 150 ℃ without the shrinkage and cracking caused by the drying effect is 150 ℃.

Although illite is a 2: 1 layer of clay mineral, unlike vermiculite, it has a mica-like structure that does not expand between layers, and has the characteristic of adsorbing heavy metals and harmful elements by emitting anions. Chemical denaturation can be minimized to maintain the mechanical strength of the composite while preserving the adsorbability and reactivity of clay minerals.

Eventually, the heat storage type heat exchanger mainly based on the above fly ash (fly ash, coal ash) has excellent heat storage and heat exchange characteristics, has excellent hygroscopicity and generates latent heat so that it can undergo heat transfer and uses ash generated from a power plant. It has the effect of regeneration and the import substitution effect of raw materials, it can be used semi-permanently, there is an advantage that no replacement cost.

In still another embodiment, in the production of a heat storage type heat exchanger using quartz as a main material,

Finely grind the stone (graphite, graphite, plumbago, etc.) into a pulverizer, make it into fine powder, and shape it into a block shape.The molded block is heated and aged at high temperature, then slowly cooled and cooled as above. Through-holes are drilled at regular intervals up, down, left, and right on the side of the processed block to improve heat storage, heat exchange, and hygroscopicity. Excellent heat storage and heat exchange characteristics. Therefore, the total heat exchange can be efficiently performed.

      Graphite is a mineral belonging to a hexagonal system, and its chemical composition is carbon (C) with low heat loss. It is made of almost pure carbon and is inhomogeneous with diamond. As it forms crystals of flakes and is covalently bonded to the net structure, the thermal conductivity is excellent, and it has heat dissipation, antibacterial and deodorizing effects.

     Finely grind the stone (graphite, graphite, plumbago, etc.) into a pulverizer, turn it into fine powder, shape it into a block shape, and then shape the molded block into an optimal combination of pore volume, specific surface area, weight and strength. Heat aging of 700-720 hours in the temperature range of 1,250 ℃ to 1,300 ℃, the heated block is heated again in an electric furnace of 2800 ℃ for about 170 hours, then cooled slowly, and heat storage heat transfer using the main material of high purity of carbon and strength and density The exchanger is obtained, and the pore volume and the specific surface area are increased by the formed structure in which a plurality of 5-10 mm diameter through holes are formed, thereby improving heat exchange efficiency.

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

The present invention reduces the volume to a substantially cube-shaped box (enclosure) shape that maintains strength and airtightness, which is flat and consists of a body 102 and a hinge 103 retractable cover 101 and can sufficiently cover driving loads and vibrations. One side of the air supply unit communicating with the air supply 122 around the circular high-density perforated structure heat recovery type heat exchanger 140 formed with a plurality of circular fine diameter through-holes 42 at equal intervals up, down, left and right in the rectangular case. The air supply fan 121 constitutes a heat recovery type ventilator 100 provided in both sides of the air supply fan 121 and the exhaust portion 130 in which the exhaust port 132 communicates with the exhaust fan 131.

In particular, the present invention can reduce the height of the ventilation device by reducing the volume by shortening the length and lowering the height, and in a substantially square shape having a high area use rate, anyone who wants to attach even in a narrow and narrow confined site such as a veranda Space-saving construction is possible easily and easily and maintains a beautiful appearance. Since the pressure loss is relatively low, the power cost is low and the case can be mounted horizontally so that it can be attached to the side, so maintenance is easy, and the fixture 104 is formed at the diagonal corner of the ventilator so that it can be attached to the wall. Easy and easy to open and close the cover 101 using the locking device 105 can be facilitated.

In addition, the air supply fan 121 is connected to the air supply unit 120 on one side of the central heat storage heat exchanger in accordance with the case length, and the air exhaust fan 130 is connected to the exhaust unit 130 on the other side of the exhaust port 132. The exhaust fans 131 are arranged side by side so as not to interfere with each other in mutually opposite symmetry, so that two opposite air streams alternately pass through a heat recovery type heat exchanger, thereby forming a ventilation structure without loss of pressure or air volume. .

At this time, the air supply fan 121 and the exhaust fan 131 which are selectively or simultaneously operated are arranged side by side in the diagonal direction rather than in the same vertical line, so as to flow the swing curve to maximize the air flow without receiving resistance. However, the rectangular total heat exchanger 140 diffuses and covers the passing air in the width direction to increase the contact time and contact area of the air and reduce the by-pass, thereby reducing heat exchange without reducing the blowing capacity. The efficiency is improved.

In addition, an air supply filter 123 and an exhaust filter 133 may be provided on an inner surface of the air supply fan 121 capable of supplying and supplying external air and the air exhaust fan 131 that sucks and discharges indoor air. Since the case is rectangular, various filters such as hepa filter and carbon filter can be installed in succession, as well as pre-filter that can filter out polluted air primarily, thereby improving air purification efficiency. have.

The regenerative heat recovery type heat exchanger (140) is made of fly ash which is highly micronized as a main component of a ball mill, etc., and 40-50% of sodium silicate or 30-40% of silica silicate as a binder. Pressurized and molded at 50-80 kg / ㎠G using a press without firing the dough mixed with vermiculite 5-6%, ILLITE 8-16% and water 3-15% It is dried for 80-120 hours at 150 ℃

The main component of the fly ash, but by adding a variety of materials to give a variety of new characteristics that were not possible with the conventional simple composition heat exchanger material to provide a multi-functional high value-added regenerative heat exchanger molding composition.

At this time, the ventilation structure of the total heat exchanger implements a heat-transmissive type that conducts heat directly between the air alternately flowing through the through hole 42 and the heat accumulated by the temperature difference between the air through the heat storage body formed of the heat storage material. To be.

In particular, as an industrial waste discharged from a boiler system that burns coal or coal and oil, the total heat exchanger whose fly ash is the main material is porous and has a large surface area which determines the heat exchange rate of the heat storage material as compared to other types of heat storage material in a certain space. In addition, even though the surface area is the same, the air resistance is very small compared to other heat storage materials, and in combination with the structural characteristics, the heat storage efficiency is increased while distributing the air flow evenly. It is desirable to.

In addition, the regenerative heat transfer exchanger using quartz as the main material,

It is a material characteristic that is the best combination of pore volume, specific surface area, weight and strength. It has excellent carbon purity, strength and density, and the structure of many 5-10mm diameter through-holes increases the pore volume and specific surface area. Significant improvement over technology.

In addition, the ventilator of the present invention formed as described above is a controller in which a predetermined protocol program is embedded and equipped with a microprocessor to control the flow of air by manipulating the PCB board 150 and to control external air and internal air. It is to ventilate while exchanging heat.

Comparative Example

division    Conventional method (prior invention)                   After improvement (invention) Appearance Long product length due to rectangular shape
-Narrow areas of apartment veranda are difficult to apply. -The product is short in length due to the square shape.
Almost square, easy to install with narrow veranda Fan layout -The length of the product is long because the air supply and exhaust fan are arranged in line with the heat exchanger. -The air supply and exhaust fan are arranged side by side with the heat exchanger
-Short product length flow of air -Air flow in the device is almost straight
-Heat exchange efficiency is low due to large amount of By Pass in air contact with heat exchanger. -The air flow in the equipment is
Done
-Bypass amount of air is small when contacting air with heat exchanger
High heat exchange efficiency heat transmitter -The products are expensive and depend on imports based on charcoal and carbon. -As ceramic heat exchanger, FlyAsh from thermal power plant is manufactured as a main raw material, so it has the effect of resource recycling and import substitution.
-As carbon heat exchanger, charcoal + carbon and quartz are processed and manufactured as main raw materials. filter -Non-woven fabric (pre-filter) installation due to narrow filter installation space -As the filter space is wide, various filters such as hepa filter and carbon filter can be applied with pre-filter.

      The present invention described above is not limited to the above-described embodiment as various substitutions and changes can be made by those skilled in the art without departing from the technical spirit of the present invention. .

1 is an external perspective view of a heat recovery type ventilation apparatus having a rectangular heat storage type heat exchanger according to the prior art;

Figure 2 is a plan view of the internal structure of the ventilation apparatus according to the prior art

3 is a perspective view of a heat storage type heat exchanger according to the prior art

Figure 4 is an external perspective view of a ventilation device having a high efficiency heat storage type heat recovery type heat exchanger according to the present invention

Figure 5 is a plan view of the inside of the ventilation apparatus having a high efficiency heat storage type heat recovery type heat exchanger according to the present invention

6 is an exemplary state of use of the heat recovery type ventilation apparatus according to the present invention

Description of the Related Art

10: rectangular ventilation device 11: opening and closing cover

12: The body 20: Air supply part

21: supply fan 22: supply

30: exhaust part 31: exhaust fan

32: exhaust 40: heat exchanger

41: heat exchanger body 42: through hole

100: heat recovery type ventilator 101: cover

102: body 103: hinge

104: fastener 105: locking device

120: air supply unit 121: air supply fan

122: supply air supply 123: supply air filter

130: exhaust part 131: exhaust fan

132: exhaust vent 133: exhaust filter

140: heat recovery type heat exchanger 150: PCB circuit board

Claims (4)

Regenerative heat recovery in which a plurality of circular fine diameter through-holes 42 are formed at equal intervals up, down, left, and right in a rectangular case in which a volume is reduced to a flat box (box) shape consisting of a body 102 and a hinge 103. The air supply fan 121 is connected to the air supply unit 120 on one side of the type heat exchanger 140 and the exhaust port 130 is connected to the air exhaust unit 130. In the ventilator (100) having a regenerative heat recovery type heat exchanger (140) provided with symmetrical staggered bilateral 131, Regenerative heat recovery type heat exchanger (140) is a porous material of sensible heat and latent heat storage function, which has a resource recycling effect, and has a heat storage type heat exchanger or graphite mainly composed of fly ash (coal ash) having a large specific surface area. Molded with a regenerative heat exchanger to maximize heat exchange efficiency, dehumidification efficiency, air purification efficiency, Between the air supply 122 and the air supply fan 121, the exhaust port 132 and the exhaust fan 131, the air supply filter 123 and the exhaust filter 133 of the dust and dust adsorption function is mounted so that the air flow is in communication with each other The fan 131 and the air supply fan 121 form an S-shaped ventilation line (euro) positioned in a symmetrical staggered direction to maintain a sufficient static pressure and air volume while maintaining a contact residence space and a residence time on the flow path through which air passes. Heat recovery type ventilator with high efficiency heat storage type heat exchanger, characterized by wider configuration The method of claim 1, The regenerative heat exchanger whose main material is fly ash is 30-40% by weight of fly ash and 40-50% of sodium silicate as a binder. Alternatively, molding using a press without firing a mixture of 30-40% Potassium Silicate, 5-6% other Vermiculite, 8-16% ILLITE and 3-15% water Heat recovery type ventilator with high efficiency heat storage type heat exchanger, which is manufactured by pressure molding at pressure of 50-80 kg / ㎠G and drying 80-120 hours at 150 ℃ The method of claim 1, The heat storage type heat exchanger mainly composed of graphite is formed into a block shape by pulverizing fine grinding powder with a pulverizer, and then heat-aging the molded block in a temperature range of 1,250 ° C to 1,300 ° C for 700-720 hours. Heat recovery type ventilation with high efficiency heat storage type heat exchanger characterized by manufacturing heat storage type heat exchanger using carbon as a main material with excellent carbon purity, strength and density after cooling the heated block again in electric furnace of 2800 ℃ Device The method of claim 2 or 3, The heat storage type heat exchanger is a heat recovery type ventilation device equipped with a high efficiency heat storage type heat exchanger, which is formed by forming a circular through hole having a diameter of 5-10 mm on both sides at equal intervals.

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