KR20140089626A

KR20140089626A - Air cleaner for maintaining optimal indoor air quality of pig building

Info

Publication number: KR20140089626A
Application number: KR1020120158098A
Authority: KR
Inventors: 김기연; 조만수
Original assignee: 부산가톨릭대학교 산학협력단
Priority date: 2012-12-31
Filing date: 2012-12-31
Publication date: 2014-07-16

Abstract

The present invention relates to an air purification apparatus for indoor environment control in a pigsty that is disposed with a hood in a pigsty where pigs are raised, particularly on a ceiling of a pigsty for pregnant/delivering pigs which are relatively weaker in immunity, so as to remove various pollutants in air, including an exhaust duct that exhausts the air into the pigsty below and is provided with a plasma ionizer which supplies negative ions to the exhaust air; an intake duct that takes in the air in the pigsty and is provided with an electric precipitator and a filter for purifying the intake air; and a circulation unit that allows an upper portion of the exhaust duct to communicate with an upper portion of the intake duct, in which a lower terminal end site of the exhaust duct and a lower terminal end site of the intake duct are connected to a vertex portion forming an upper portion of a ceiling hood and a trumpet portion forming a lower portion of the ceiling hood is disposed in an upper portion of the pigsty.

Description

TECHNICAL FIELD [0001] The present invention relates to an air cleaner for indoor environment control in a pig house,

More particularly, the present invention relates to a purging apparatus for controlling indoor environments in pigs, and more particularly to a purging apparatus for pigs, in particular, a pedometer installed on a ceiling of a pregnant / The present invention relates to an air purifier for controlling an indoor environment in a pig man.

Generally, the air purifier is not applied to the indoor environment control of the pig house compared with other indoor environment.

Since the material type for actual air purification is mostly composed of filtering type filter device, it is extremely rare to know the replacement cycle of the filter which is a consumable material accurately and to operate the air purifier. The durability and the dust collecting efficiency of this filter-type device vary greatly depending on the location and the flow rate.

It is also true that other air purifiers including the filter type have a doubt on the efficacy of the air purifier due to microorganisms in the air purifier or secondary air pollutants such as ozone. However, it is difficult to remove suspended microorganisms that cause airborne diseases at the source.

Especially, in the case of pig farms, the indoor environment is much lagging behind the homes and multi-use facilities where ordinary people are living in. Therefore, there is a possibility that infectious diseases such as foot-and-mouth disease and 4P consumable diseases are likely to occur. Advance management skills are required.

FIG. 1 shows an example in which an existing air purifier in a pig house is installed. Such an air purifier is typically installed on the side wall. When the purger of the side wall-mounted air purifier is applied, the internal air purifier breaks due to the infiltration of external rodents such as a mouse, so that the maintenance cost is increased, Which is pointed out as a serious problem.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a pig pork breeding pug, especially a pregnant / And to provide an air purification apparatus for controlling an indoor environment of a pig man.

According to an aspect of the present invention, there is provided an exhaust duct comprising: an exhaust duct having a plasma ionizer for exhausting air into a lower python and supplying negative ions to the exhausted air; An intake duct provided with an electrostatic precipitator and a filter for sucking air in the pile yarn and purifying the air to be sucked; And a circulation unit communicating an upper portion of the exhaust duct and an upper portion of the intake duct; Wherein a lower end portion of the exhaust duct and a lower end portion of the intake duct are connected to a stem portion constituting an upper portion of the ceiling hood and a trumpet portion constituting a lower portion of the ceiling hood is installed on an upper portion of the pile. Thereby providing a purification device.

Preferably, the circulation unit is connected to an intake pipe to which outside air is supplied, so that outside air is mixed with air circulated through the circulation unit.

Preferably, a ventilation fan for discharging air in the pig is provided on a side surface of the pig.

Preferably, a warmer is connected to the intake pipe, and air of the heater is supplied to the circulation unit according to the flow rate control, so that the air of the heater is mixed with air circulated.

Preferably, in the exhaust duct, an exhaust fan is provided on the upper portion of the plasma ionizer to move the air downward along the exhaust duct.

Preferably, an intake fan for moving air upward along the intake duct is provided in the intake duct at an upper portion of the electric dust collector and the filter.

Preferably, the filter is installed on the top of the electrostatic precipitator in the intake duct.

Preferably, the filter is an activated carbon filter.

Preferably, the activated carbon filter is coated with silver nano or ceramics.

According to the present invention, since rats gathered due to feed inside the pig house, or insects such as mosquito and fly in summer usually use the wall of the pig house, rats or pests are often found in the air purifier filter, In order to overcome the phenomenon, the air purifier is installed along with the hood on the ceiling of the python, so it is possible to block the intrusion of the rodent entering from the outside of the pig.

In addition, compared with the wall-mounted type, the hood type can increase the treatment capacity, increase the pollutant removal efficiency and the effect of removing microbial bacteria, and the anion is released in the form of rain on the pig directly by the hood structure. It is possible to maximize the efficiency of sterilization of the suspended microorganisms by discharging the direct negative ions.

In addition, a plasma ionizer is arranged in an exhaust duct for supplying air into an air purifier and a dust collector and a filter are disposed in an intake duct for sucking air from a pig, so that biologically pollutants, particulate pollutants, It is possible to control pollutants at the same time.

That is, indoor air pollutants include airborne pollutants such as viruses, bacteria, fungi, and the like, particulate pollutants such as dusts, and gaseous pollutants such as ammonia and hydrogen sulfide, Can be controlled simultaneously.

In addition, pigs are most polluted more than any other indoor space because pigs are excreted in pigs as they are excreted by pigs. If they are applied as they are, they will not be able to get up to a day because of gaseous substances and particulate matter However, in the present invention, it is possible to obtain an economical efficiency of increasing the replacement period of the filter, which is a consumable material, by constructing the dust collector, the filter and the plasma ionizer along the air flow path. In general, it is a fast filter change cycle that pig workers feel the most difficulty. Therefore, if the purifying function of air pollutants in piglets is progressed sequentially, it is possible to increase the filter replacement cycle relatively.

Brief Description of the Drawings Fig.
BACKGROUND OF THE INVENTION Field of the Invention [0001]
3 is a plan view for explaining an air supply hood according to the present invention.
4 is a plan view for explaining a pilgrimage company to which an air purification apparatus according to the present invention is applied.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an air purifier for controlling an indoor environment of a piggy house according to the present invention will be described in detail with reference to the accompanying drawings.

3 is a plan view for explaining an air supply hood according to the present invention, and FIG. 4 is a view for explaining an air purifying apparatus according to the present invention, Fig. 5 is a plan view illustrating the pig to which the device is applied.

2 to 4, the air purifier according to the present invention is installed in a pork nursery 90 for raising pigs, in particular a pork nursery for raising pregnant / parturient pigs having relatively weak immunity. An air inlet fan 12 connected to one end of the intake pipe 10 to suck the outside air and discharge the air to the other side, a duct unit 20 for moving the outside air supplied through the air inlet fan 12, Air purifying means for removing contaminants from the air that is built in the duct unit 20 and removes contaminants, air supplied through the duct unit 20 to the lower end of the duct unit 20, And the ceiling hood 80 for sucking the air inside the piggy yarn 90. The air in the python 90 can be partially discharged through the ventilation fan 70 installed on the side surface of the python 90. [

Currently, more than 70% of the pension types operated in Korea are operated as windowless swine housing.

The former type of pigs are piglets that open the curtains manually in the summer and curtains in the winter to maintain the growth / humidity of the pigs in the form of curtains (usually "winch curtain pegs" or "open pigs" ). In this case, the pigs are not good in breeding performance because they can not maintain the indoor temperature / humidity properly in the pigs properly, and in recent years, they prefer Muchang pig. Such a mungchang pavilion is structured such that an exhaust fan is installed on one side wall and an air inlet is installed on the other side wall to automatically maintain the indoor temperature / humidity of the pilgrimage company by operating the exhaust fan automatically according to changes in the external temperature.

The air purifying apparatus according to the present invention can be applied to the above-described unchanged python. Hereinafter, the present invention will be described in detail with reference to examples applied to the unchanged python.

In the structure according to the present invention, the air is introduced through the air inlet fan 12 and supplied along the duct part 20 into the pig pile, and the air circulated in the room is sucked back to the duct part 20 and circulated. Here, some air is partially discharged through the ventilation fan 70 installed on the side surface of the python 90.

This air inflow and outflow structure of the air has no significant problems in spring, summer, and autumn when the temperature of the outside air does not deviate greatly from the temperature range suitable for the growth of pigs in the pig house, but the temperature of the outside air is drastically lowered, A separate heating device 13 can be installed in the intake pipe 10. The warmer 13 can supply warm air and the pig manager can control the flow control valve 11 provided in the intake pipe 10 to switch the flow path to the heater 13 so that warm air can be simply introduced into the pig Will be able to supply.

Meanwhile, the air thus introduced moves along the duct portion 20, and the duct portion 20 is divided into the exhaust duct 21 and the intake duct 22 to constitute a two-channel flow path. The exhaust duct 21 and the intake duct 22 communicate with each other at the circulation part 23 at the upper part of the duct part 20 and consequently can induce the circulation of air in the pythm 90, The intake tube 10 is connected to the upper circulation part 23 of the unit 20 so that the outside air can be mixed with the circulated air.

The exhaust duct 21 is provided with an upper exhaust fan 31 for exhausting air into the pile yarn by moving the air downward along the exhaust duct 21 and an exhaust duct 21 provided below the exhaust fan 31, And a plasma ionizer 40 for supplying negative ions to the air to be moved is constructed.

An electrostatic precipitator 50 and a filter 60 for purifying the contaminated air coming from the inside of the pig pile are installed in the intake duct 22 in order from the bottom. The suction fan 32 for sucking the air is formed.

The air supplied with the negative ions through the plasma ionizer 40 of the exhaust duct 21 is pushed by the exhaust fan 31 and diffused along the ceiling hood 80 and spread in the python 90, The air contaminated by the environment is sucked up by the intake fan 32 of the intake duct 22 and the pollutant is removed through the electrostatic precipitator 50 and the filter 60, The air will flow into the exhaust duct 21 again through the circulation unit 23 and be recirculated, thereby achieving energy saving. At this time, the circulation unit 23 can mix the outside air with the intake pipe 10. As the air circulation is performed as described above, a negative pressure is formed inside the pig, so that some of the purified air can be discharged to the outside through the ventilation fan 70 on the side wall of the pig 90.

The plasma ionizer 70 generates anions using the plasma discharge. The plasma ionizer 70 generates negative ions in the air exhausted into the pythm 90 installed in the exhaust duct 21 to remove biological contaminants such as viruses, bacteria, .

The electric dust collector 50 is a device for collecting and collecting suspended particulate matter in the air. The electric dust collector 50 is installed in the air intake duct 22 and is applied to air contaminated by the python 90 to remove particulate pollutants such as dust do.

The filter 60 is an apparatus for filtering the air to be moved. The filter 60 is installed in the intake duct 22 above the electrostatic precipitator 50 and contains ammonia or hydrogen sulfide Which is a malodorous substance, such as water.

At this time, it is preferable that the filter 60 is composed of an activated carbon filter which is effective for removing odor, and in addition, the activated carbon may be coated with silver nano or ceramic.

The air purifier in a typical indoor space exerts deodorization and air purification functions by using an electrostatic precipitator or a filter. However, in the case of pigs, the manure excreted by the pigs is accumulated in the pig house, which is the most dirty than any other indoor space. Therefore, when a general filter is applied to a pig as it is, it is obvious that the effect will be deteriorated because the particulate matter such as dust, which is discharged at a high concentration, passes over the filter break point.

Therefore, the permanent plasma ionizer 40 exerts an antibacterial effect against the air supplied to the python, sucks the air inside the pile yarn, and performs a primary purification process for treating particulate pollutants such as dust through the electrostatic precipitator 50 And secondly purifies the gas phase contaminants such as odor through the filter 60. By recycling the gas phase contaminants, it is possible to further save the filter replacement period, do. In general, it is a fast filter change cycle that the pig man worker feels the most troublesome. Therefore, if the purge function of the pig air pollutant progresses sequentially as in the above arrangement, the exchange cycle of the filter can be relatively reduced.

In the above-described structure, since diffusion of air in the room is relatively large, the diffusion rate of the negative ions discharged from the plasma ionizer 40 also increases.

In addition, the operation of the air inlet fan 12 for sucking outside air from the outside, that is, the inflow amount of the outside air, needs to be reduced as much as possible because if the inflow of outside air is increased, And the plasma ion emitted from the plasma ionizer 40 can not spread far away due to the acceleration of the air (Brownian motion).

The lower end of the exhaust duct 21 and the lower intake end of the intake duct 22 are connected to each other with a narrow width of the upper portion of the ceiling hood 80, And is connected to the stem portion 81. The ceiling hood 80 has a hood structure having a wider width as it goes downward, and a trumpet portion 82 having a wide width is provided at a lower portion thereof. Preferably, the width of the trumpet portion 82 at the lower end is adapted to the width of the python 90, so that air circulation is efficiently performed.

Actual wall-mounted air purifier configurations have more limitations in increasing processing capacity than hooded configurations. When the wall-mounted type is applied to indoor air quality control, it does not exceed 40 m 2/1 wall. In case of multi-wall type, it is structurally difficult to efficiently control high concentration indoor air pollutants generated in pig house.

In addition, rats gathered due to feeds inside the pig house and pests such as mosquitoes and flies in summer usually use the wall of the pig's house, so that rats or pests are often found in the air purifier filter, causing damage to the filter or machine failure. It is happening.

Therefore, in order to overcome such a disadvantage, the ceiling hood 80 is installed in the form of a hood at the lower exhaust end of the exhaust duct 21 and the lower intake air inlet of the intake duct 22. In such a structure, The anion is discharged directly to the upper end of the pig, thereby maximizing the effect of removing air pollutants from the pig.

Hereinafter, experimental results on the reduction of air pollutants in the pig provided with the air purifier according to the present invention and experimental results on the productivity index will be described with reference to the tables.

Table 1 below shows the results of analysis of the air pollutant reduction sensitivity of the ceiling-type hood type air purification apparatus of the present invention in accordance with the application of the site (python).

Material name Reduction effect (%) Average efficiency Standard Deviation Maximum efficiency Minimum efficiency Gaseous substance NH ₃ No mitigation effectiveness H ₂ S No mitigation effectiveness Particulate matter TSP -8 13.7 55 -129 PM ₁₀ 29 6.6 65 -35 PM _2.5 79 6.1 87 60 PM ₁ 78 3.0 88 61 Biological material Floating fungus 22 6.6 33 13 Floating bacteria 25 8.7 39 16

As shown in Table 1, the PM ₂ _.5 and PM ₁ corresponding to the ultrafine dusts were 79% and 78% lower than the initial concentrations, respectively. On the other hand, in the case of airborne fungi, which are harmful to biology, the average was reduced by 22%, while the airborne bacteria were reduced by an average of 25%.

Table 2 below is a table comparing the productivity indexes of pigs raised in pigs equipped with a ceiling hood type air purifier according to the present invention and pets not installed.

Productivity index When installing SPi When SPi is not installed Effectiveness Average Standard Deviation Average Standard Deviation Weight gain (kg) 102.4Kg 7.26 92.4Kg 12.26 10Kg Feed rate 2.58 0.36 3.04 0.42 15.1% Pork activity (%) 30.8 5.4 29.1 6.8 5.5% Mortality rate (two) 5 - 12 - 60.9%

As a result of comparing the productivity index of the pigs raised in the pig pens provided with the ceiling hood type air purification apparatus according to the present invention and the pigs not installed pigs, the average feed weight difference was about 10 kg, and the average feed conversion rate was 15.1% Improvement effect. The pig activity index, which indirectly reflects the indoor air quality of pigs, was 5.5% higher than that of untreated pigs, and the mortality rate was about 60.9% of that of untreated pigs.

As described above, an optimal embodiment has been disclosed in the drawings and specification. Although specific terms have been employed herein, they are used for purposes of illustration only and are not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

10: intake pipe 11: flow control valve
12: Air inlet fan 13: Heater
20: duct part 21: exhaust duct
22: intake duct 23: circulation part
31: exhaust fan 32: intake fan
40: Plasma ionizer 50: Electrostatic precipitator
60: filter 70: ventilation fan
80: Ceiling hood 81: Stomp
82: The trumpet 90: The ninja

Claims

An exhaust duct having a plasma ionizer for exhausting air into a lower pile yarn and supplying negative ions to the exhausted air;
An intake duct provided with an electrostatic precipitator and a filter for sucking air in the pile yarn and purifying the air to be sucked; And
A circulation unit communicating an upper portion of the exhaust duct and an upper portion of the intake duct; / RTI >
Wherein a lower end portion of the exhaust duct and a lower end portion of the intake duct are connected to a stem portion constituting an upper portion of the ceiling hood, and a trumpet portion constituting a lower portion of the ceiling hood is installed on the upper portion of the pig.

The method according to claim 1,
Wherein the circulation unit is connected to an intake pipe through which outdoor air is supplied so that outside air is mixed with air circulated through the circulation unit.

3. The method of claim 2,
Wherein a ventilation fan for discharging air in the pig is provided on a side surface of the pig.

3. The method of claim 2,
Wherein a heat generator is connected to the intake pipe to supply the air of the heater to the circulation unit in accordance with the flow control, thereby mixing the air of the heater with the circulated air.

The method according to claim 1,
Wherein an exhaust fan for moving the air downward along the exhaust duct is provided at an upper portion of the plasma ionizer in the exhaust duct.

The method according to claim 1,
Wherein an air intake fan for moving the air upward along the intake duct is provided in the upper part of the electrostatic precipitator and the filter in the intake duct.

The method according to claim 1,
Wherein a filter is installed on an upper portion of the electrostatic dust precipitator in the intake duct.

The method according to claim 1,
Wherein the filter is an activated carbon filter.

9. The method of claim 8,
Wherein the activated carbon filter is coated with silver nano or ceramics.