KR101442199B1 - Ventilation system of underground parking lots - Google Patents

Abstract

The present invention can increase the air volume at a constant pressure, adjust the exhaust air flow direction, control the ventilation according to the polluted area, and select the number of the air in each zone to drive the air supply and exhaust fan, Provides underground parking ventilation system.
The underground parking lot ventilation system according to a preferred embodiment of the present invention includes: a waste sieve supply fan installed in one suction passage of an underground parking structure, A waste sieve exhaust fan disposed in each basement of the underground parking structure and installed in a plurality of N in the exhaust port side of each basement layer provided along the other exhaust passage; A plurality of manned fans for diffusing the supply flow of the selected waste gas supply fan into the interlayer room in the underground parking structure and drawing it to the waste sieve exhaust fan side; A plurality of sensors for measuring the concentration of carbon monoxide in each of the underground indoor spaces; A control unit selectively controlling the operation of the waste sieve supply fan, the drawn fan, and the waste sieve exhaust fan according to the measured value of the sensor; A direction guiding plate disposed in the exhaust passage for regulating the exhaust direction according to the exhaust air speed of the waste sheave exhaust fan; And a direction induction plate control motor for controlling the direction of the direction induction plate.

Description

Background Art [0002] Ventilation systems of underground parking lots

The present invention relates to an underground parking lot ventilation system, and more particularly, to an underground parking lot ventilation system capable of increasing the air volume with a constant pressure, controlling the exhaust wind direction, controlling ventilation by polluted area, The present invention relates to an underground parking lot ventilation system for reducing energy consumption.

The main cause of air pollution in underground parking lots is automobile exhaust gas. There are various kinds of harmful components of exhaust gas such as carbon monoxide, carbon dioxide gas, nitrogen oxides, hydrocarbons, aldehydes, graphite, lead chemicals, etc. However, CO concentration is used as the environmental index of the parking lot considering the toxicity and emission amount harmful to human body. Therefore, ventilation is required to maintain the concentration of CO gas, which is the main environmental pollutant of the underground parking lot, below the target value. In order to improve the indoor air cleanliness of the underground parking lot, it is necessary to minimize the polluted air stagnation area and to prevent the occurrence of condensation in the summer, so that an economical ventilation system should be applied.

The parking lot law stipulates that "the average value of CO gas for 8 hours before and after the most frequent parking lot should be kept below 50ppm".

Typical ventilation systems include duct systems, high-speed nozzle systems, and no-dact systems.

In the case of the air exhaust duct system, an air supply fan for introducing outside air and an air supply duct are installed, and an exhaust fan and an exhaust duct for discharging indoor polluted air are installed and exhausted. In this method, due to the partial supply and exhaust duct installation, many dead spaces are generated due to obstacles such as columns, people, and automobiles, which can not reach the air flow, and congestion of CO gas and floating dust may occur .

In the case of the high-speed nozzle system, a high-speed duct is required in such a manner that the air supply is smoothly performed by using the air supply fan for introducing outside air and the turbo fan and nozzle for attracting room air at high speed and exhausting through the exhaust fan.

In the case of the duct-free system, there is an advantage that a high-speed duct is unnecessary as a method of smoothly transferring air through an air supply fan that introduces outside air and a fan that draws indoor air and extracts the air through an exhaust fan.

In the case of the conventional ductless type, since the large fan room is not easy to utilize the parking space, the noise is heavy and the electricity cost is too high, the ventilation equipment is not operated.

As a background of the present invention, Korean Patent Registration No. 10-0371265, entitled " Supply System of Underground Structures " is presented. A duct vertically installed along the shaft of the underground structure; A fan installed at a lowermost portion of the duct to suck air in the shaft and blow it into the duct; A secondary nozzle installed in an opening formed in a wall on the side of the underground structure of the shaft; And a primary nozzle installed in the duct toward the center of the secondary nozzle.

However, in the case of the above background technology, it is necessary to install the duct in the shaft, and additional installation of the air volume control damper is required in the duct. Also, there is no suggestion to remove indoor pollution in underground parking lot by area.

Korean Patent Registration No. 10-0502432

Accordingly, the present invention can increase the air volume with a constant pressure, adjust the exhaust air flow direction, control the ventilation according to the polluted area, and select the number of the zones by area to drive the air supply and exhaust fan, The purpose is to provide an underground parking lot ventilation system.

According to a preferred embodiment of the present invention,

A pulsating sieve supply fan installed in one of the suction passages of the underground parking structure and installed in a plurality of M units in a supply mechanism of each underground floor;

A waste sieve exhaust fan disposed in each basement of the underground parking structure and installed in a plurality of N in the exhaust port side of each basement layer provided along the other exhaust passage;

A plurality of manned fans for diffusing the supply flow of the selected waste gas supply fan into the interlayer room in the underground parking structure and drawing it to the waste sieve exhaust fan side;

A plurality of sensors for measuring the concentration of carbon monoxide in each compartment of the underground floor; And

A control unit selectively controlling the operation of the waste sieve supply fan, the drawn fan, and the waste sieve exhaust fan according to the measured value of the sensor;

A direction guiding plate positioned in the exhaust passage for regulating the exhaust direction according to the exhaust wind speed of the waste sheave exhaust fan;

And a direction induction plate control motor for controlling the direction of the direction induction plate.

Also, the waste sheave supply fan has a cylindrical fan casing having at least one suction port on the rear surface, and a spiral groove formed on the inner circumferential surface of the fan casing to diffuse the airflow to a large distance;

And an anion generator is included in the fan casing.

Further, a sound absorbing material is additionally provided on the inner circumferential surface of the fan casing to reduce noise of wind speed.

In addition, the waste sieve exhaust fan includes a plurality of direction adjusting blades for adjusting the discharge direction.

The waste sieve feed fan further includes a heater for removing condensation.

The waste heat exchanger according to claim 1, wherein the waste heat exchanger is a waste heat exchanger.

In addition, the manned fan is composed of a center fan located at the center and a pair of side fans positioned on the left and right sides of the center fan, and the exhaust port of each fan is constituted by a corrugated pipe which can selectively control the direction of exhaust according to the field condition Being;

The center fan and the pair of side fans each include an anion generator.

Further, the control unit is further characterized in that a display window for realizing the ventilation flow of the contaminated area is further connected.

A forced air blower for forced air blowing into the one suction passage;

A forced air supply line connected to the forced air blower and disposed in the one suction passage;

And a plurality of forced air supply nozzles branched and connected to the forced air supply.

Further, the pulsating sheave exhaust fan is further provided with a damper which has a mass body and is installed in an exhaust port and opens / closes in proportion to the exhaust air speed.

The waste sieve exhaust fan is further provided with a damper connected to the cylinder for opening and closing the exhaust port.

The waste sieve exhaust fan is further provided with a damper connected to a spring for opening and closing an exhaust port.

In addition, the closed-

A cylindrical fan casing having at least one suction port at the rear and a conical discharge port at the front;

A fan motor disposed at a center of the fan casing;

A fan casing sound absorbing material installed on the inner surface of the fan casing;

A hollow fan casing housing inserted in the periphery of the fan casing and having a helical groove turned in a spiral direction for diffusing the air volume to an inner surface of the tip end; And

And a housing sound absorbing material provided on an inner surface of the fan casing housing;

And a second suction port is further provided between the fan casing and the fan casing housing.

The underground parking lot ventilation system according to the present invention is capable of increasing the air volume by generating static air pressure from the closed sieve air supply fan and controlling the direction of the exhaust air by the direction guide plate of the exhaust passage, And the number of electric power is selected for each zone to drive the power supply / exhaust fan, so that the consumption of electric energy can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments of the invention and, together with the description, serve to explain the principles of the invention, Shall not be construed as limiting.
BRIEF DESCRIPTION OF DRAWINGS FIG. 1A is a block diagram of an underground parking ventilation system according to the present invention; FIG.
FIG. 1B is an illustration of a manned fan applied to an underground parking lot ventilation system according to the present invention; FIG.
FIG. 2A is an enlarged view of the air supply side of FIG. 1A. FIG.
FIG. 2B is a side cross-sectional view of a waste sieve feed fan according to the present invention. FIG.
Fig. 3 is an enlarged view of the exhaust port side in Fig. 1a. Fig.
FIG. 4 is a view showing various configurations of a waste sheave supply fan and a waste sheave exhaust fan according to the present invention. FIG.
5 is a configuration diagram of a control unit applied to the underground parking lot ventilation system of the present invention.
6 is a control flowchart of the underground parking lot ventilation system according to the present invention.
7 is an exemplary view of a ventilation flow in an underground parking lot;
Fig. 8 is a configuration diagram with a forced air blowing device applied to the present invention. Fig.
9A to 9C are various constructions of a damper applied to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto.

As shown in Figs. 1A to 3, the waste sheath supply fan 16 is located in one suction passage 12 of the underground parking structure 10. The waste sheave air supply fan 16 is installed in the air supply mechanism 14 in each basement. For example, in the case of three basement floors, it is all installed in a three-story basement apparatus (14).

The waste sieve supply fan 16 includes a cylindrical fan casing 160 having one or more suction ports 160a on the rear surface thereof as shown in FIGS. 2A and 2B, and a fan casing 160 for spreading the uniform static pressure and air volume to a large distance. And has a spiral groove 161 formed in the inner peripheral surface of the housing. At this time, the spiral groove 161 may be composed of one or more sets of multi-arrays. For example, the spiral groove 161 can be selected from the first to sixth sets. Therefore, two spiral grooves 161 and six spiral grooves 161 are formed simultaneously in the two-row spiral groove 161 and six spiral grooves 161, respectively. When the spiral groove 161 is formed in the fan casing 160, the airflow is continuously maintained and maintained. Thus, the spiral groove 161 can be transmitted to a long distance and the air volume can be changed with a constant static pressure (wind pressure). At this time, a sound absorbing material 162 may be additionally installed on the inner circumferential surface of the fan casing 160 to reduce the noise of the wind speed. The sound absorbing material 162 may be, for example, a porous sound absorbing material or a flexible material sound absorbing material. Therefore, the waste sieve air supply fan 16 is capable of quiet operation.

The waste sheave supply fans 16 are installed in combination of a plurality of M numbers. The waste sieve feed fan 16 is, for example, arranged in four rows in four rows, six rows in two rows and three columns in the order of (A), (B), (C) It can be a combination of 8 units in two rows and four columns, nine units in three rows and three columns, and twelve units in three rows and four columns. However, the number of steps and the number of pulsating sieve air blowing fans 16 applied to the present invention are not limited to those illustrated, but may be changed in consideration of the amount of air required for ventilation of each underground floor space. It is preferable that the waste sheave supply fan 16 has an intake port 160a on the rear surface thereof to increase the air volume while maintaining a constant static pressure.

At this time, the waste sieve feed fan 16 is selectively driven under the control of the control unit 30 shown in FIG. For example, in the case of the pulsewave supply fan 16 having two rows and three columns, two fans can be driven in combination according to the appropriate amount of ventilation. Therefore, as the concentration of carbon monoxide, which is a criterion of pollution in the parking space, increases, the number of movable pulses of the waste sieve fan 16 can be increased to perform the ventilation.

At this time, the fan casing 160 may include an anion generator 163. Therefore, the effect of air purification due to generation of negative ions can be seen in the indoor ventilation.

The waste sieve exhaust fan 22 is installed along the other exhaust passage 18, located in each basement of the underground parking lot structure 10. The waste sheave exhaust fans 22 are installed in combination of a plurality of N in the exhaust port 20 side of each underground layer. In the present embodiment, the waste sheave exhaust fan 22 is provided at a position facing each other with respect to the waste sheave supply fan 16, Further, the installation position of the waste sheave exhaust fan 22 can be changed depending on the position of the exhaust passage 18.

As shown in FIG. 4, the waste sheave exhaust fans 22 are installed in a combination of N and therefore, for example, four, four, two, three, four, two, three, It can be combined with twelve units in four columns. However, the number of stages and the number of the pulsed sheave exhaust fans 22 applied to the present invention are not limited to those illustrated, but may be changed in consideration of the amount of exhaust air required for ventilation of each underground floor space. At this time, the waste sheave exhaust fan 22 is selectively driven under the control of the control unit 30 described later. For example, the pulsewave exhaust fans 22 in the second stage and the third column can be driven in combination with each other in accordance with the appropriate amount of ventilation. Accordingly, as the concentration of carbon monoxide, which is a criterion of pollution in the parking space, increases, the number of movable pulses of the waste sheave exhaust fan 22 can be increased to perform the ventilation. It is preferable that a plurality of direction adjusting blades 22a are formed on the waste sieve exhaust fan 22 so as to smooth the discharge flow on the discharge side. A plurality of manned fans 24 are installed to diffuse the supply flow of the selected pulsed sheave supply fan 16 into the interlayer room in the underground parking structure and to attract the waste stream to the waste sheave exhaust fan 22 side. The attracting fan 24 can be installed on the ceiling between each floor. The attracting fan 24 may be installed in a fixed manner, but it is preferable that the attracting fan 24 is provided so as to be capable of adjusting the rotational directions of the left and right and up and down. The attracting fan 24 includes a center fan 241 positioned at the center as shown in FIG. 1B and a pair of side fans 242 and 242 located on the right and left sides of the center fan 241, and the exhaust ports 241, 242, And a corrugated pipe 240 which can selectively control the direction of exhaust according to the field. At this time, the attracting fans 24 are preferably arranged so that the ventilation flow of the contaminated area continuously extends from the air supply mechanism 14 to the exhaust port 20. [ That is, the arrangement of the induction fans 24 can be made such that the ventilation flow is not interrupted or the vortex congestion does not occur. In the case where the attracting fan 24 is composed of the center fan 241 and the pair of side fans 242 and 242, when both the fans are operated at the same time, the ventilation area is widened so that rapid ventilation can be performed in a short time.

The center fan 241 and the pair of side fans 242 and 242 may be driven at the same time, but may be selectively driven in consideration of the amount of ventilation and the ventilation area.

Here, the center fan 241 and the pair of side fans 242 and 242 may further include an anion generator 243. Therefore, the effect of the air purification of the indoor air can be obtained according to the operation of the negative ion generator 243.

8, a forced air blower 1 for forced air blowing is provided in one suction passage 12, and a forced air blower 1 connected to the forced blower 1, A forced air intake tube 2 disposed in the intake passage 12 and a plurality of forced air supply nozzles 3 branched and connected to the forced air intake tube 2 may be further configured.

A plurality of sensors 26 for measuring the concentration of carbon monoxide in each zone are installed in each underground floor. The sensors 26 are distributed evenly over the entire area of each interlayer room. Each sensor 26 in the layer is given a unique number, and the necessary ventilation area is determined with the concentration of carbon monoxide obtained from each sensor 26.

For example, to remove contaminants (carbon monoxide) remaining in the space when the concentration of carbon monoxide is high in a stagnant space in one of the basement rooms, (24) and the waste sheave exhaust fan (22) are operated to remove contamination. By circulating the outside air in the polluted area in this way, the energy can be saved and the noise can be greatly reduced.

And a control unit 30 for selectively controlling the operation of the waste sheath supply fan 16, the induction fan 24 and the waste sheave exhaust fan 22 according to the measured value of the sensor 26.

As shown in FIG. 5, the control unit 30 includes a pollution zone determination unit 31 for determining a pollution zone due to carbon monoxide concentration, a pollution level determination unit 32 for determining a pollution degree of the pollution zone, A fan drive number selecting section 33 for selecting and determining the fan drive number of the fan, and a drive instructing section 34 for instructing the drive of the selected fan.

Here, the contaminated area determination unit 31 divides the parking space into a plurality of areas to determine a contaminated area. That is, it is determined whether the degree of contamination of the divided areas is serious, with information obtained from the plurality of sensors 26. Areas with severe contamination are areas subject to ventilation.

The pollution level determining unit 32 determines the allowable concentration value of the set carbon monoxide, and determines that the pollution level is higher than the allowable concentration value. The contamination level determining unit 32 can determine the contamination level by comparing the set allowable concentration values. For example, if the concentration of carbon monoxide exceeds 20 ppm or 25 ppm, contamination can be determined.

The fan drive algebraic number selection unit 33 selects the optimum number of movable pieces according to the degree of contamination of the contaminated area determined as the contamination. For example, the number of operations of the waste sheave supply fan 16 and the number of operations of the waste sheave exhausting fan 22 are selected.

The drive instruction unit 34 continuously receives the ventilation information of the contaminated area and instructs the operation of the waste sheath supply fan 16, the drawn fan 24 and the waste sheave exhaust fan 22. [ The driving instruction unit 34 terminates the operation of the waste sheath supply fan 16, the drawn-in fan 24 and the waste sheath exhausting fan 22 when the contamination of the contaminated area is removed.

At this time, the control unit 30 may be further connected to a display window 40 that displays the ventilation flow of the contaminated area in real time. For example, the display window 40 may display the ventilation flow taking place in the contamination zone as shown in FIG.

The waste sheave supply fan 16 may further include a heater 17 for removing condensation as shown in FIG. The heater (17) is controlled in operation by comparing the humidity measured in the parking space with the reference humidity in the control unit (30). The heater 17 may be, for example, an electric heating element.

As shown in FIG. 3, the directional guide plate 180 is disposed in the exhaust passage 18 to adjust the direction of exhaust according to the exhaust wind speed of the waste-sieve exhaust fan 22, and the direction of the directional guide plate 180 is controlled A directional guidance plate control motor 182 is installed. The directional guidance plate control motor 182 is driven under the control of the control unit 182. For example, when the speed of the air blown from the waste sieve exhaust plate 22 is high, the amount of exhaust is not guided to the lower side of the exhaust passage 18 to improve the exhaust efficiency. At this time, the means for detecting the wind speed may be a well-known wind speed anemometer or wind speed sensor.

The operation of the ventilation system of the underground parking structure constructed as above will be described with reference to the control flowchart of FIG.

First, the pollution degree of each zone in the underground parking lot is measured through the sensor 26 (S10). At this time, the sensors 26 are distributed in the respective basement rooms in the zones, and the pollution degree of the carbon monoxide measured in real time is transmitted to the control unit 30.

Therefore, the pollution degree of each zone is checked through the control unit 30 connected to the sensor 26 (S11), and the decontamination zone is determined (S12).

Thereafter, the control unit 30 selects the number of pulses to be supplied to the waste sheave supply fan 16, the induction fan 24 and the waste sheave exhaust fan 22 in the corresponding contaminated area (S13) and drives them (S14). Thus, ventilation (S15) of the contaminated area is performed quickly. At this time, the air amount is supplied from the waste sheave air supply fan 16 to a long distance while maintaining a constant static pressure according to the induction of the air flow of the spiral groove 161. Also, the direction of the direction induction plate 180 is adjusted by controlling the direction of the direction induction plate control motor 182 by sensing the speed of the air blown from the waste sheave exhaust fan 22. Therefore, efficient exhaust is achieved. At this time, silent supply is performed by the sound absorbing material 162.

In addition, the discharge direction is determined by the plurality of direction adjusting blades 22a for adjusting the discharge direction of the pollutants discharged from the waste sheave exhaust fan 22, so that quick discharge is induced.

During the ventilation, the sensor 26 continuously measures the contamination level of the contaminated area to see if the contamination is removed.

If it is confirmed that the contamination is removed, the driving of the selected waste sheave supply fan 16, the induction fan 24, and the waste sheave exhaust fan 22 is stopped (S17). Of course, the driving of the waste sheave supply fan 16, the induction fan 24, and the waste sheave exhaust fan 22 is continuously performed while the contamination is removed.

At this time, the ventilation flow of the contaminated area is displayed on the display window 40.

On the other hand, when the heater 17 is operated when the selective fan is driven, hot air is blown from the closed sheave air supply fan 16 to remove condensation and maintain a comfortable parking space.

The forced blower 1 of Fig. 8 is driven to quickly and forcefully induce and discharge polluted air that has not been removed in the parking space, and the forced air supply nozzle (not shown) is driven via the forced air supply line 2 disposed in the one- 3) to supply the replenishment amount.

As described above, according to the present invention, it is possible to increase the air flow rate by the static pressure by causing the circulating air velocity from the waste sieve air supply fan, and the direction of the exhaust airflow can be controlled by the direction induction plate of the exhaust passage. In addition, by operating only the optimum supply fan, the attracting fan, and the exhaust fan, the power ratio, that is, the amount of electricity used can be drastically reduced. There is also no need for a fan room, so parking spaces are wider. In addition, it is unnecessary to construct a separate duct in the basement room. In addition, since it can be installed inside and outside of the air supply mechanism and the exhaust port, there is no restriction on installation.

9A, the pulsating sheave exhaust fan 22 may further include a damper 27a having a mass body 271a, which is provided in the exhaust port 20 and opens and closes in proportion to the exhaust air speed. At this time, the mass body 271a provides a restoring force for returning the damper 27a to its original position and closing the exhaust port 20. [

9B, the waste sheave exhaust fan 22 may further include a damper 27b which is connected to the cylinder 271b and opens and closes the exhaust port 20, as shown in FIG. 9B. At this time, the cylinder 271b moves back and forth in accordance with the operation of the waste sheave exhaust fan 22 to open and close the damper 27b.

As shown in FIG. 9C, a damper 27c connected to the spring 271c and opening / closing the exhaust port 20 may be installed in the waste sheave exhaust fan 22. At this time, the spring 271c provides a returning force to return to the home position after the opening operation of the damper 27c.

As described above, according to the present invention, various types of dampers 27a, 27b, and 27c are selectively installed to control the exhaust port 20 to improve the exhaust efficiency.

10, the waste sieve supply fan 16 according to the present invention includes a cylindrical fan casing 160 having at least one suction port 160a and a conical discharge port 160b at the rear, A fan motor 165 disposed at the center of the fan casing 160; A fan casing sound absorbing material 166 installed on the inner surface of the fan casing 160; A hollow fan casing housing 167 inserted into the periphery of the fan casing 160 and having a helical groove 161 that is turned in a spiral direction to diffuse the air volume to a long distance on the inner surface of the tip portion; And a housing sound absorbing material (168) installed on the inner surface of the fan casing housing (167); And a second suction port 169 may be further provided between the fan casing 160 and the fan casing housing 167.

At this time, the fan casing 160 and the fan casing housing 167 are disposed on the concentric axis. The fan casing 160 is disposed on the rear side inside the fan casing housing 167 so that the air sucked from the suction port 160a and the second suction port 169 is merged on the front side of the discharge port 160b .

The pulsating sheave air supply fan 16 constructed as described above is doubly absorbed by the fan casing sound absorbing material 166 and the housing sound absorbing material 168 to greatly reduce noise. Also, the intake air amount is increased due to the intake port 160a and the second intake port 169, and the air flow rate can be increased. And also has an advantage that the air flow rate can be increased and the static pressure can be increased at the same time due to the increase of the wind speed by the helical groove 161.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the above teachings. will be.

1: Forced blower
2: Compulsory class institutions
3: Forced air nozzle
10: Underground parking structure
12: Suction passage
16: Waste fan
160: Fan casing
161: Spiral groove
162: Sound absorbing material
17: Heater
18: Outlet passage
22: waste sheave exhaust fan
24: Fun Fan
26: Sensor
30:
31: Pollution Zone Judgment Unit
32: Pollution degree determining unit
33: fan drive number selection part
34:
40: display window
180: Directional guidance plate
182: Directional guidance plate control motor
240: corrugated tube

Claims (13)

delete A closed sieve air supply fan 16 disposed in one suction passage 12 of the underground parking structure 10 and provided in a plurality of M groups in the air supply mechanism 14 of each underground layer;
A waste sieve exhaust fan 22 disposed in each basement of the underground parking lot structure 10 and provided in combination with a plurality of N at the exhaust port 20 side of each basement layer provided along the other exhaust passage 18;
A plurality of manned fans (24) for diffusing the supply flow of the selected pulsed sheave supply fan (16) into the interlayer room in the underground parking structure and drawing it to the waste sheave exhaust fan (22) side;
A plurality of sensors 26 for measuring concentrations of carbon monoxide in each of the underground indoor spaces;
A controller 30 for selectively controlling operations of the waste sheath supply fan 16, the induction fan 24 and the waste sheave exhaust fan 22 according to the measured value of the sensor 26;
A direction guide plate (180) located in the exhaust passage (18) for adjusting the exhaust direction according to the exhaust wind speed of the waste sieve exhaust fan (22); And
And a direction induction plate control motor (182) for controlling the direction of the direction induction plate (180), the system comprising:
The waste sieve feed fan (16)
A cylindrical fan casing 160 having one or more inlets 160a on its rear side,
Has a spiral groove (161) formed in the inner peripheral surface of the fan casing (160) for diffusing the air volume to a large distance;
Wherein the fan casing (160) includes an anion generator (163). 3. The method of claim 2,
And a sound absorbing material (162) is additionally installed on the inner circumferential surface of the fan casing (160) to reduce noise of wind speed. delete delete delete delete delete A closed sieve air supply fan 16 disposed in one suction passage 12 of the underground parking structure 10 and provided in a plurality of M groups in the air supply mechanism 14 of each underground layer;
A waste sieve exhaust fan 22 disposed in each basement of the underground parking lot structure 10 and provided in combination with a plurality of N at the exhaust port 20 side of each basement layer provided along the other exhaust passage 18;
A plurality of manned fans (24) for diffusing the supply flow of the selected pulsed sheave supply fan (16) into the interlayer room in the underground parking structure and drawing it to the waste sheave exhaust fan (22) side;
A plurality of sensors 26 for measuring concentrations of carbon monoxide in each of the underground indoor spaces;
A controller 30 for selectively controlling operations of the waste sheath supply fan 16, the induction fan 24 and the waste sheave exhaust fan 22 according to the measured value of the sensor 26;
A direction guide plate (180) located in the exhaust passage (18) for adjusting the exhaust direction according to the exhaust wind speed of the waste sieve exhaust fan (22); And
And a direction induction plate control motor (182) for controlling the direction of the direction induction plate (180), the system comprising:
A forced air blower (1) for forced air blowing in the one-side suction passage (12);
A forced air supply tube (2) connected to the forced air blower (1) and disposed in the one side intake passage (12);
Further comprising a plurality of forced air supply nozzles (3) branched and connected to the forced air supply unit (2). delete delete delete A closed sieve air supply fan 16 disposed in one suction passage 12 of the underground parking structure 10 and provided in a plurality of M groups in the air supply mechanism 14 of each underground layer;
A waste sieve exhaust fan 22 disposed in each basement of the underground parking lot structure 10 and provided in combination with a plurality of N at the exhaust port 20 side of each basement layer provided along the other exhaust passage 18;
A plurality of manned fans (24) for diffusing the supply flow of the selected pulsed sheave supply fan (16) into the interlayer room in the underground parking structure and drawing it to the waste sheave exhaust fan (22) side;
A plurality of sensors 26 for measuring concentrations of carbon monoxide in each of the underground indoor spaces;
A controller 30 for selectively controlling operations of the waste sheath supply fan 16, the induction fan 24 and the waste sheave exhaust fan 22 according to the measured value of the sensor 26;
A direction guide plate (180) located in the exhaust passage (18) for adjusting the exhaust direction according to the exhaust wind speed of the waste sieve exhaust fan (22); And
And a direction induction plate control motor (182) for controlling the direction of the direction induction plate (180), the system comprising:
The waste sieve supply fan (16)
A cylindrical fan casing 160 having at least one suction port 160a at the rear and a conical discharge port 160b at the front thereof;
A fan motor 165 disposed at the center of the fan casing 160;
A fan casing sound absorbing material 166 installed on the inner surface of the fan casing 160;
A hollow fan casing housing 167 inserted into the periphery of the fan casing 160 and having a helical groove 161 that is turned in a spiral direction to diffuse the air volume to a long distance on the inner surface of the tip portion; And
And a housing sound absorbing material (168) installed on the inner surface of the fan casing housing (167)
And a second suction port (169) is further provided between the fan casing (160) and the fan casing housing (167).

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