KR20020091611A - system for heating and cooling - Google Patents

Abstract

PURPOSE: A system for heating and cooling and air purification using subterranean heat and heat energy of discharged air is provided to supply livestock with air without dust and harmful gas and of appropriate temperature. CONSTITUTION: An underground heat exchange pipe(3) is laid under the ground. A sprinkler(4) disperses water in a sprinkler tower(5). A collecting reservoir(1) stores water to store subterranean heat energy. 20-30% of air discharged from a stable is collected and mixed with an outside air in the sprinkler tower to increase temperature of supply air and prevent freezing in the sprinkler tower. Dust or harmful gas contained in the collected air is removed primarily by water and decomposed by ozone gas generated by an ozone generator(9-2) or supplied to crops.

Description

Combined heating and cooling system using geothermal and exhaust energy thermal energy {system for heating and cooling}

The present invention relates to a cooling and heating and air purification combined apparatus using the heat energy of geothermal and exhaust air, and more particularly to.

Livestock productivity is closely related to temperature and air freshness. Proper ventilation and temperature maintenance, especially due to overcrowded areas. The reduction of the crossover is an essential element of the livestock industry.

The ventilation of the barn must be influenced by the outside temperature because natural or artificial air must be introduced. In winter, it is possible to heat up with limited investment and less heat due to the emission of body temperature. In summer, however, air-conditioning with ventilation is required, which increases production costs such as investment and maintenance costs. After all, lowering the haptic temperature or using the heat of vaporization is hard to expect a great effect, especially in the windowless barn without a window, sometimes serious problems such as heat stroke, growth rate and growth rate decreases.

An object of the present invention is to solve the above problems, by spraying the water heat-exchanged close to the underground temperature (15-17 degrees) in the air supplied to the barn, the air inside the barn is cooled or warmed close to the water temperature, dust and harmful To improve livestock productivity by providing livestock with clean, near-temperature, degassed air at all times.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an equidistant piping diagram of a barn (floorless window) plan view and an underground heat exchanger tube (3).

Figure 2 is a longitudinal cross-sectional view of the windowless yarn (air flow and exhaust air recovery device)

Figure 3 is a longitudinal sectional view of the open house (air flow and exhaust air recovery device)

4 is a plan view of the high temperature greenhouse (storage heat stored in the crop plantation)

Figure 5 is a longitudinal cross-sectional view of the high temperature greenhouse

6 is a cross-sectional view of a high temperature greenhouse.

7 is a plan view of the low temperature greenhouse (room temperature cooling)

8 is a flow chart of the low temperature greenhouse table cultivation

9 is a flow chart of air at low temperature greenhouse soil cultivation

10 is a plan view of heating and cooling in association with a barn and a greenhouse

11 is a cross-sectional view of the water tower

12 is a cross-sectional view of a dehumidification chamber

13 is a cross-sectional view of a combination of air conditioning and air purification apparatus using the thermal energy of geothermal and exhaust air

Explanation of symbols for important parts of the drawings

DESCRIPTION OF SYMBOLS 1 Collection basin 1-1: Water droplet removal cloth 1-2: Circulating water 2: Pumping pump 3: Underground heat exchange pipe

3a: main pipe 3b: branch pipe 4: spraying device 5: air inlet 6: spraying tower

7: Exhaust air recovery device f: Fan s; Shutter d: Exhaust air recovery port

8: Dehumidification room 8-1; Dehumidification curtain 8-2; Cleaning tool 9: Ventilation passage 9-1: Air hole

9-2: ozone generator 10: livestock 11: exhaust 휀 11 ': pit exhaust fan

12: entrance window 13: 3-way valve 14; exhaust window 16; intake window

17; winch curtain 18; greenhouse

The heat exchange rate is proportional to the temperature difference, thermal conductivity, and contact time between the two materials. Therefore, in order to obtain a dressing with a small temperature difference and a small temperature deviation according to the season

(1) heat exchanger tube (3) to secure the maximum buried area (1.5-3 times the livestock area),

(2) embed the heat exchanger tube (3) at a depth (4-5m or less) less affected by the ground temperature;

(3) In order to make contact area and contact time sufficient, length of heat exchanger tube 3 is lengthened enough, or the retention time of a heat medium is extended so that heat exchange may fully occur in several branch pipes 3b.

(4) Raise the height of the watering tower (6) sufficiently and allow the water to spread evenly from the watering device (4) to fall down and slow down the falling speed.

(5) To store as much water as possible in the reservoir 12 to store a lot of geothermal energy regardless of the external temperature so that it can sufficiently dissipate or absorb heat when needed,

(6) When the temperature of the inlet is similar to the outside temperature, and there is no need for underground circulation, the underground circulation is omitted, so that it can only be lived (pounded) or shut down and save power.

(7) When the temperature of inlet is 5 ℃ lower than the proper temperature, 20-30% of the air discharged from the barn can be recovered and mixed with outside air in the sprinkling tower (6) to increase the temperature of the inlet. ) Can prevent freezing.

(8) To remove harmful gases such as ammonia and dust contaminated by the recovered air with water, and to clean up the air (linking livestock and horticulture) by decomposing (stocking) the rest with ozone gas or making it available to crops.

Since the amount of intake and the temperature of the intake should be determined according to the insulation structure, proper temperature and breeding density of the livestock, and the method of ingestion, the passage of air in consideration of the maximum ventilation amount so as not to create excessive sound pressure in the livestock house 10. The specification and amount of sprinkling of the sprinkling tower 6 and the air inlet 5 are determined so that the speed does not exceed 1-1.5 m / sec.

In the case of facility horticulture (18), since the temperature should be prioritized, the internal circulation of air is mainly focused on. In the daytime, if the room temperature rises above 30 ° C and the hot air is to be discharged to the exhaust fan 11, the water is heated in the sprinkling tower 6 and then dispersed and supplied throughout the greenhouse 18 through the duct 9 again. do.

Since the heated heat medium plays a role of raising the temperature of the soil around the pipe, the underground pipe 3 is limited to the inside area of the greenhouse 18 and the buried depth is less than 1 m to mainly heat the planted land. During the night, the water in the reservoir 1 can be used for heating the film.

If low temperatures are required in the summer, such as in eggplants, the heat exchanger tube 3 is buried deeper (less than 5 m) and operated only above the limit temperature, where the sprinkler on the roof enhances the cooling effect. Air passing through the water spray tower (6) is cooled and then supplied to the front of the greenhouse (18) through the duct (9).

In the case of interlocking houses and greenhouses, in order to store the thermal energy of the greenhouse underground during the day and use it at night, the depth of the heat exchanger tube (3) in the greenhouse (18) should be within 1 m and its watering tower (6) and house The storage 1 is installed separately from that of the livestock house 10, and the livestock heat exchanger tube 3 is buried in 5 m or less (see Fig. 10).

Since the air purification rate may drop depending on the growth state of the crop, the air inlet 5 and the ozone generator 9-2 are properly operated.

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

(1) Collection basin and circulating water (heat medium): It is installed in reinforced concrete at depths of 1.2-5m based on the watering tower (6) and the dehumidification chamber (8). Use a float valve to adjust the water level. The watering tower area should be pictorialized so that the passage speed of the maximum ventilation according to the size of the barn (10) or the greenhouse (18) is within 1-1.5m, and the moisture removal room (8) should be wider than the watering tower (6). The area of (1) is determined accordingly.

The low volume of circulating water, which drives heat exchange between the ground and the bed, increases heat exchange rate, narrows the crossover and sinks the dissolved dust. Organic matter dissolved in water has self-cleaning effect, so it is used until it becomes cloudy or has a lot of sediment, and disinfectant is not used for activated sludge. Since water droplets generated during the watering cause water overheating, install a water drop cloth (1-1) on the water surface.

(2) Pumping pump: The higher the amount of water sprayed, the nearer the temperature can be obtained, but when the outside temperature is close to the proper temperature, the primary (2a) and the secondary (2b) are used to prevent waste of power and geothermal heat and to control the heat exchange rate. It is possible to add or decrease the amount of water sprayed by running the pump or more. Each pump has its own underground heat exchanger tube (3) connected to it. When the temperature is high and the exhaust air recovery unit (7) is running, almost all pumps (2) can be started and shut down when the temperature is within the proper temperature range. have.

(3) Underground heat exchanger pipes: pipes are divided into several branch pipes (3b) from the main pipe (3a) in order to achieve effective heat exchange in a small area and to reduce installation costs. In order to make the passage speed of water uniform in each branch pipe 3b, the connection area between the main pipe 3a and the branch pipe 3b is the sum of the cross-sectional area of each branch pipe 3a on the suplly side and the return side. ) Connect the pipes (Ø13-16mm) that are less than 70-80% of the cross-sectional area (Ø13-16mm) with 100-200m of heat exchanger pipes (3b) of Φ32-50mm, but the lengths are the same, and the main pipes (a) have three rows. Allow it to circulate.

If the buried area is insufficient, the primary pipe should be buried below 5m underground, the secondary buried 3.5m deep, and in the case of facility horticulture to raise the ground temperature, it should be buried between 60 and 100cm, but not horizontally buried.

Since the piping materials are almost non-corrosive, withstand earth pressure, have good thermal conductivity and are easy to work with, the main pipe (3a) should be made of stainless steel or PVC, but should be able to withstand the action of air hammer. Branch piping is ideal for moth excel pipes that have good elasticity and resistance to earth pressure.

In order to increase the heat exchange rate in the limited area, the underground heat exchange tube (3) is divided into several branch pipes (3b) from the main pipe (3a) to circulate water. Some branch pipes (3b) with short circulation distance and low resistance are equidistant pipes (see Fig. 3) to prevent water circulation from being biased, and are kept horizontal to prevent air pockets, and the main pipes (3a) and branch pipes (3b) A certain distance (10-15m) from the branch point starts with a thin tube so that the sum of the cross-sectional area of the branch pipe (3b) is 70-80% of the cross-sectional area of the main pipe (3a), and connects with a thick pipe (Ф32-40mm) of 100-200m. The resistance of each branch pipe is made constant by connecting the main pipe with a thin pipe again.

(4) Sprinkler and amount of water: The heat medium is broken into small water droplets so that the contact surface with air in the water spray tower (6) is kept evenly, and the water is sprayed evenly over the front of the water spray tower, and the water drops splash out of the water spray tower (6). Filter before watering to avoid clogging holes with moss or dust.

When there are several pumps (2), it is advantageous to install the sprinkler (4) separately, and the amount of sprinkling water is a 3-way valve (13) when only one pump (2) is operated. It adjusts by operation of each pump 2 by th). This thermostat (th) senser is located in the dehumidification chamber (8), indoors (18 or 18), or outside.

The sprinkler (4) is connected to the main pipe (3a) by drilling holes of about 3mm at regular intervals at regular intervals so that the spray angle and pressure in the PVC pipe meet the above conditions.

(5) Air inlet: It is a space where enough air can enter the top or upper wall of the water spray tower (6) and is equipped with a screen to block dust or insects. The winch curtain 17 is installed. A greenhouse (10) that installs large amounts of outside air is installed at the top of the spray tower (6), and the area of the screen doubles the area of the spray tower (6) in consideration of the dust. Etc.) should be installed on the upper wall of the spray tower (6) or on the south side of the greenhouse.

(6) Sprinkling tower: A place where heat and water are contacted to transfer heat to the mouth, and the heat exchange amount varies depending on the temperature difference and contact time between the mouth and water, and the amount of water and the air passing through, and the heat of vaporization is the temperature of the mouth. Has the effect of lowering. Therefore, to delay the passage of air and water, install screen (6-1) horizontally at intervals of 1-1.5m to reduce the rate of water drop and smash water droplets more finely.

In the greenhouse (18), which controls the amount of water to maintain the optimum temperature, especially in the winter, crops are raised so that the temperature rises so that the temperature can be maintained at night and the indoor temperature is not lowered during the day. Restrict. Indeed, increasing the soil's temperature rather than raising the room's temperature was found to have a much better effect on promoting crop growth.

The water spray tower (6), the collecting basin (1), and the dehumidification chamber (8) are integrated so that heat exchange, air purification, and water self-purification are effective, providing comfortable air to livestock and crops. The watering tower (6) and the dehumidification chamber (8) should be secured enough to be m / sec or less, and the water collecting basin (1), which is the basis of this facility, should be at least a watering tower to maintain the water level and allow the air to pass smoothly. Keep the space as wide as (6).

The spray tower (6) is installed with a stainless steel net (6-1) 3 to 5 levels horizontally to crush the water droplets more finely and delay the dropping speed, and remove the water droplets that suppress the generation of small water droplets on the surface of the water collecting tank (1). A cloth (1-1) is provided, and a plurality of curtains are vertically installed in the moisture removing chamber (8) to catch water droplets and dust mixed during the dressing.

The amount of water is controlled by the inlet temperature or room temperature sensor, which is controlled by the 3-way valve (13) when there is only one pump (2) and by the number of pumps (2) which are operated when two or more pumps are used. When there are two pumps (2), one of them may be provided with a 3-way valve (13). Water that does not go to the underground heat exchanger tube (3) from the 3-way valve (13) is introduced into the sprinkler or collection basin.

Part of the exhaust air (20-40%) is recovered and mixed with external air in the spray tower (6) to be regenerated and utilized. In the case of the livestock house 10 divided into several small rooms, fan ducts are installed on the ceiling or outside, and when there is a large amount of heat loss in the recovered Duct, the duct is thoroughly insulated.

In horticulture, which is almost internally circulated, fans in the walls of the spray tower send heat from the greenhouse to the spray tower to exchange heat.

(7) Exhaust air recovery system: It is difficult to maintain proper temperature when the external temperature (5) is too low, even though the temperature of the dressing is controlled by watering (4). The water from (6) to the sump (1) freezes and reaches the situation where it cannot continue watering. At this time, part of the high-temperature exhaust air (20-40%) is mixed with outside air at the upper part of the spray tower (6) and purified by water, so that it is possible to secure a breath of 9-22 ℃ higher than the outside temperature and prevent freezing. have.

In the case of the windowless barn 10 in which the ventilation amount is automatically adjusted according to the room temperature, the mixing ratio is automatically adjusted, and in the case of the barn 10 in which the ventilation amount is not controlled, such as an open barn, the shutter s and the air inlet of the recovery air outlet. Adjust the winch curtain (17) that is opened and closed in accordance with the room temperature (5).

(8) Dehumidification room: curtains caught vertically with gravity as the air heat-exchanged in the watering tower (6) rises upwards as a passage (8) supplied to the barn (10) or the greenhouse through the water surface of the water storage (10) ( Moisture is removed by 8-1). Dust not dissolved in water adheres to the curtain (8-1), and harmful gases such as ammonia are decomposed by ozone gas at the top. In the greenhouse, the air is blown by a fan connected to a blower tube without an ozone generator 9-2.

(9) Ventilation passage: A passage through which heat-exchanged air is sufficiently influenced by the outside air temperature to the house (10). In a windowless (closed) house, the space or the corridor between the ceiling and the roof is the ventilation passage (9). It can be used as an open barn 10 and the greenhouse 18 to supply air to the fan duct.

In the case of open houses and low temperature greenhouses using fan ducts (9), the air temperature (9-1) is lowered in the summer to increase the sense of temperature, and in the winter (below the appropriate temperature), the upper air is pushed down to push the hot air downward. .

(10) Barns or greenhouses: Ventilation pipes should be arranged appropriately so that fresh air can be spread evenly throughout the barn or greenhouse without ventilation blind spots. The dressing window (12, no window barn) or the air hole (9-1, open barn or greenhouse ventilation pipe) can be spread evenly throughout the barn or the greenhouse by adjusting the opening degree or size in consideration of the distance from the fan. . In the case of the windowless barn, the air pressure can be introduced only when the negative pressure is maintained by the exhaust fan 11, so that the existing inlet that has been introduced through the chuck is closed.

When the barn 10 and the greenhouse 18 are combined, the exhaust is discharged from the barn to the greenhouse. During the day, carbon dioxide and ammonia gas are used by crops, and dust is settled in the greenhouse 18. do. Therefore, the thermal energy of the greenhouse is transferred to the water from the spray tower and stored in the soil of the greenhouse (18), which can be used for warming the greenhouse and the barn at night. However, at night, the plants also breathe, so oxygen may be insufficient during the feeding to the barn. have.

Flow of air and heating medium (circulating water) in the house;

Muchang Donsa Outside Air

Heat Exchanger Sprinkler Tower Fan Ventilation Path Barn Exhaust Fan External

3-way valve… … → Sprinkler thermostat

Pumping pump collection station Dehumidification room Ozone gas air passage entrance window

thermostat

Open pig outside air (winch curtain-thermostat)

Heat exchanger sprinkler tower shutter barn upper barn outside

3-way valve… … → watering device

Pumping pump collection station Dehumidification room Ozone gas fan duct Air hole

thermostat

(12) Auto-contrul box: All functions such as operation of pumping pump (2) and exhaust air recovery system (7f), and control of sprinkling volume and inlet volume according to temperature are controlled by temperature sensor (thermostat). Controlled by a controlled magnetic switch. Control criteria and methods are adjusted according to the appropriate temperature of livestock or crops and can be computer controlled with ventilation control.

division Barn Whole room ① Appropriate temperature 20 ℃ 25 ℃ (15 ℃ for low temperature room) ② Pumping Pump (2) Operation stop (open barn) or underground circulation stop between 15-25 ℃. When more than 2 units, set operating temperature of each pump Shutdown below proper temperature. When more than 2 units, set operating temperature of each pump ③3-way valve (13) Underground circulation is stopped until room temperature 15-25 ℃. Every 25 ° C to 1 ° C increase underground circulation by 20%. Every time the temperature rises by 1 ℃, the amount of watering increases by 20%. ④ exhaust heat recovery fan (7F) Run until the temperature rises to 15 ℃. When there are two or more fans, the rotation speed increases by 10% as the operating temperature of each fan or the temperature decreases by 1 ℃. Simultaneously operates pumping pump, increasing rotation rate by 20% or operating one unit at every 1 ℃ ⑤ Blower (F) and Duct (9) One to three units (five units depending on the size of the house) are shut down one by one each time the room temperature drops by 2-3 ° C. The duct connected to this fan contracts to block backflow. Only blower duct (9) is present. However, blow the blower when the vinyl duct cannot expand. ⑥Power Winch Curtain (17) As the indoor temperature decreases, the sound pressure increases in the spray tower, which opens the shutter and closes the air inlet (5) so that the indoor air can be mixed with the outside air by 20-40% (adjust by dial). The exhaust window 14 is exhausted while being pushed open by the positive pressure in the water spray tower. ⑦ Ozone Generator (9-2) Start when ammonia gas concentration is 3-5ppm or higher (or run by timer) ⑧Exhaust fan (11) Varies with room temperature (by room temperature control function)

<Air Flow According to Various Embodiments>

Flow of air and heating medium in low temperature greenhouse

Exhaust Window External Air Input Window

3-way valve spray tower shutter fan greenhouse

Heat exchanger sprinkler

Pumping pump collection station Dehumidification room (fan) duct air hole

thermostat

* In summer day, the temperature inside the greenhouse is controlled by spring cooler on the roof.

Flow chart of air and heating medium in warm greenhouse;

* Low temperature but buried depth of heat exchanger tube is 0.6-1m.

**, At night, the water will come to the reservoir.

Flow chart of air and heating medium when the house is connected to the greenhouse;

External air (winch curtain-thermostat)

Heat Exchanger Sprinkler Tower 1, 2 Outside Greenhouse

3-way valve sprinkler

Pumping pump collection station 1, 2 Dehumidification room Ozone gas fan duct Stall opening window

thermostat (fan)

* () Is the case of no-chang pigs that use the ceiling as an air passage and exhaust the house as an exhaust fan.

** Because the warm air from the greenhouse is introduced into the house, it is not necessary to recover the house air for auxiliary heating.

As described above, according to the e-commerce payment intermediation method according to the present invention, in the case of facility horticulture, heating to maintain the same temperature in summer is inevitable, when heating is required in summer, such as a cultivation room, Since the development of alternative energy for cooling is urgently needed, the use of geothermal and waste heat and the storage and recycling of surplus energy will be the best way to save fuel costs.

When the barn and the horticultural facility are linked, the exhaust heat of the barn can be used for gardening at night, and the surplus heat energy of the greenhouse can be stored in the ground for the night and clean air supplemented with oxygen by plant air purification and carbon assimilation. Can be supplied to the barn, and the ammonia gas in the barn air will have the side fertilizing effect of the crops, so it is expected to have the effect of three-stone trillion.

(1) It is possible to narrow the seasonal temperature difference within the house within 10-15˚C and the daily crossover within 3-5˚C, which can greatly reduce the stress caused by the high temperature, low temperature, and large crossover. Productivity such as growth rate can be greatly improved.

(2) In the case of facility horticulture, low-temperature greenhouse cultivation is possible in summer, and in winter, excess heat such as solar heat can be stored and used for heating at night.

(3) By actively using thermal energy that does not require payment such as geothermal heat, solar heat and barn exhaust heat, and using purchased energy only when it is necessary, energy purchase cost can be saved more than 60-80%, and the production cost burden Can be reduced.

(4) Since it can be operated all year round, there is no need to install cooling and heating facilities separately, and it is more economical to install than air conditioners and boilers.

(5) Simple facility, few failures, no need to arrange manager, long service life.

(6) The self-purifying capacity of the circulating water is not concerned with environmental pollution, there is no waste of water, and the environment can be improved because it actively limits the use of fossil fuel.

Claims (1)

Combined air-conditioning and air purification using heat and heat energy from exhaust air.