KR102157518B1 - Ventilation and ventilation control method of underground parking ventilation system that can switch between forward and reverse using sensor and have cooling function and backdraftdamper - Google Patents

Abstract

The present invention relates to a ventilation and smoke control method of an underground parking lot ventilation system capable of switching forward and backward using a sensor and having a cooling function and a backflow prevention damper, and more specifically, to an improved ventilation and smoke control method of an underground parking lot ventilation system that increases the smoke control effect by allowing forward and backward rotation, has its own cooling function so that an internal space of the underground parking lot is relatively cooled without having a separate and systematic air conditioner to suppress the temperature increase, in particular, can prevent safety accidents and reduce personal injury by suppressing the heat island phenomenon caused by hot smoke during a fire.

Description

Ventilation and ventilation control method of underground parking ventilation system that can switch between forward and reverse using sensor and can be switched forward and reverse using sensors and equipped with cooling function and backflow prevention damper have cooling function and backdraftdamper}

The present invention relates to a ventilation and ventilation control method of an underground parking lot ventilation system capable of forward and reverse switching using a sensor and equipped with a cooling function and a reverse flow prevention damper, and more specifically, a forward and reverse rotation is possible, thereby increasing the ventilation effect. In addition, since it has its own cooling function, it relatively cools the space inside the underground parking lot without having a separate systematic heating and cooling system to suppress the temperature rise, and in particular, it suppresses the heat island phenomenon and smoke diffusion caused by hot smoke during a fire. The present invention relates to a ventilation and ventilation control method of a ventilation system in an underground parking lot with a cooling function and a reverse flow prevention damper capable of switching forward and backward using an improved sensor to prevent safety accidents and reduce personal injury.

In general, underground parking lots may pollute the air by carbon monoxide contained in exhaust gas, and the concentration of carbon monoxide (CO) is set at a legal standard (50 PPM), and a more strengthened standard may be applied depending on the will of the manager. When the concentration of carbon monoxide reaches the reference value as described above, ventilation is performed by driving a ventilation facility.

Exhaust gas generated while a number of vehicles are parked and moving pollutes the interior of the underground parking lot, and the exhaust gas must flow quickly and be exhausted, but otherwise, it is very harmful to the human body.

These underground parking lots are included in many buildings such as apartments, large marts, department stores, gymnasiums, and government offices, and most of them are equipped with ventilation facilities, but due to the burden of power costs and errors in the carbon monoxide (CO) sensor, etc. There is a problem that the air quality in the underground parking lot is seriously degraded due to the malfunction of the facility.

In addition, in the case of an underground parking lot as described above, the concentration of carbon dioxide (CO2) should be automatically detected and automatically ventilated when the concentration exceeds a certain level to maintain the concentration of organic compounds unsuitable for the human body below a certain standard.

For example, as illustrated in FIG. 1, conventional ventilation facilities include a plurality of air inducing fans 10 installed on the ceiling of an underground parking lot, an air supply fan 22 installed in the cavity 20, and an exhaust fan installed in the opposite cavity 30. It is composed of (32) and is configured to ventilate by allowing supply and exhaust air from the supply fan 22 side to the exhaust fan 32 side.

At this time, the air inducing fan 10 is referred to as a “jet fan,” and is a fan that makes air flow so that the supplied air cannot be exhausted and is not congested during movement because the underground parking space is large.

However, since the conventional jet fan has a structure that blows air in only one direction, if a fire occurs near the air supply side, the smoke may eventually spread to the entire underground parking lot due to the jet fan. Can encourage.

In particular, since the smoke generated by a fire is hot, the spread of this smoke may cause a heat island phenomenon and smoke spread, increasing the damage to safety accidents for evacuees.

In addition, there is a disadvantage that a separate cooling facility must be provided in order to cool the underground parking lot because the ventilation facility in the underground parking lot does not have a cooling function.

Domestic registration patent No. 10-1202892 (2012.11.13.) Underground parking lot intelligent ventilation system

The present invention was created to solve all the problems of the prior art as described above, and it is possible to rotate forward and backward to increase the ventilation effect, as well as to have a self-cooling function, without having a separate systematic air conditioner. It is possible to change the forward/reverse direction using an improved sensor to prevent safety accidents and reduce personal injury by suppressing the heat island phenomenon caused by hot smoke, especially in case of fire, while relatively cooling the space inside the underground parking lot. Its main purpose is to provide a ventilation and ventilation control method for an underground parking lot ventilation system that is possible and equipped with a cooling function and a backflow prevention damper.

The present invention is a means for achieving the above object, a thermal insulation tank (60) that collects condensate discharged from the cooling and heating system (air conditioner or system air conditioner) 50 of a building in which an underground parking lot is installed and keeps it at a constant temperature. ); A circulation pump 70 installed at the discharge end 62 of the thermal insulation tank 60; A jet fan (JET) installed on the ceiling of an underground parking lot and capable of forward and reverse rotation while blowing the supplied air toward the exhaust; A cooling coil 130 connected to the discharge end of the circulation pump 70 and arranged by winding a spiral around the inner diameter of the jet fan (JET) and piped to be discharged; A multi-fan 200 capable of forward and reverse rotation, which is made up of a plurality of single fans 210 installed in the first and second cavity ports SP1 and SP2 to perform a supply air or exhaust function; A fan cooling coil 230 installed at a predetermined interval in front of the multi-fan 200 and connected to the discharge end of the circulation pump 70, wherein the jet fan (JET) includes the fan body 100 and , Consisting of an expansion unit 110 expanded in the form of a funnel on both sides of the fan body 100, and a fan unit 120 mounted inside the center of the length of the fan body 100 and comprising a fan motor and a fan; The cooling coil 130 is spirally wound around the inner diameters of both sides of the fan body 110 between the fan unit 120 and the expansion unit 110; The fan motor constituting the fan unit 120 is a motor capable of forward or reverse rotation, and a jet fan (JET) and a multi-fan 200 are driven and controlled by a controller according to a plurality of sensor detection signals. A method for controlling ventilation and ventilation in a system;
The multi-fan 200 normally installed in the first cavity SP1 performs a function of an air supply fan, and the multi-fan 200 installed in the second cavity SP2 performs an exhaust fan function;
When a fire is detected by the sensor, the controller checks the sensor for detecting the fire, and calculates and determines whether the ignition point (ZONE) is closer to which of the first cavity (SP1) and the second cavity (SP2);
When the cavity near the ignition point (ZONE) is determined, converting the multi-fan 200 installed in the cavity into an exhaust fan, and converting the multi-fan 200 installed in the opposite cavity into an air supply fan to smoke ventilation; including It provides a ventilation and smoke control method of a ventilation system in an underground parking lot with a cooling function and a reverse flow prevention damper capable of forward and reverse switching using a sensor, characterized in that.

At this time, if the underground parking lot is formed of two or more floors, a damper is installed on each floor of the shared first and second cavity (SP1, SP2) to be opened and closed by a controller, and then the remaining floors excluding the floor when ventilation is performed. It is also characterized by the fact that the damper of the wall is closed to prevent the smoke from flowing back to other layers.

According to the present invention, not only can the forward and reverse rotation increase the ventilation effect, but also has its own cooling function to relatively cool the interior space of the underground parking lot without having a separate systematic air conditioner to suppress the increase in temperature, especially, fire. In this case, improved effects can be obtained to prevent safety accidents and reduce human damage by suppressing the heat island phenomenon and smoke diffusion caused by hot smoke.

1 is an exemplary view of a conventional underground parking ventilation facility.
2 is an exemplary configuration diagram of an underground parking ventilation system according to the present invention.
3 is a configuration diagram for explaining a jet fan constituting the system of FIG. 2.
4 is an exemplary schematic cross-sectional view of a jet fan constituting the system of FIG. 2.
5 is an exemplary view of a supply and exhaust fan assembly provided with a low static pressure cooling coil constituting the system of FIG. 2.
6 is an exemplary view showing a ventilation and smoke control method according to the present invention.

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

Prior to the description of the present invention, the following specific structural or functional descriptions are exemplified only for the purpose of describing embodiments according to the concept of the present invention, and embodiments according to the concept of the present invention may be implemented in various forms, It should not be construed as being limited to the embodiments described herein.

In addition, since the embodiments according to the concept of the present invention can apply various changes and have various forms, specific embodiments are illustrated in the drawings and will be described in detail in the present specification. However, this is not intended to limit the embodiments according to the concept of the present invention to a specific form of disclosure, and it should be understood that all modifications, equivalents, and substitutes included in the spirit and scope of the present invention are included.

As shown in Figure 2, in order to explain the ventilation and smoke control method of the underground parking lot ventilation system capable of forward and reverse switching using the sensor according to the present invention and having a cooling function and a backflow prevention damper, Explain.

The ventilation system according to the present invention includes a thermal insulation tank 60 capable of collecting condensate discharged from the cooling and heating system (air conditioner or system air conditioner) 50 of a building in which the corresponding underground parking lot is installed.

At this time, the thermal insulation tank 60 may be installed inside the underground parking lot, or may be installed outside, and its installation location is okay, and it has a location or structure that can minimize heating by only outside air. It is particularly preferred.

In this case, the reason why the thermal insulation tank 60 is needed is that condensed water is not generated every time, but only when the cooling and heating system 50 is operated by cooling, and the cooling time when cooling the underground parking lot is the operation of the cooling and heating system 50 It is to compensate for this because it cannot coincide with time every time. In particular, since the cooling operation of the cooling/heating system 50 is hardly operated in winter, condensate is hardly discharged, so at this time, it is not shown so that cooling water can be supplied and filled from the outside to the insulation tank 60, but a supplementary pipe (not shown) It is preferable that Si) is further connected.

In addition, condensed water is about 14-16℃, which is lower than the room temperature of 18℃. In particular, since the underground parking lot is usually about 30-40℃, it can perform a sufficient relative cooling function, but if the tank is not kept warm, it will heat up very quickly. This is because the ability to perform the cooling function as cooling water is poor. In addition, it must have a structure that can be drained separately for circulation of the water temperature of the storage tank and the condensate piping system so that there is no obstacle to the operation of the cooling and heating system.

In addition, a circulation pump 70 is installed at the discharge end 62 of the insulating tank 60.

The circulation pump 70 is a means for supplying condensed water, that is, cooling water, to a jet fan (JET) that performs a cooling function according to a control signal from a controller (not shown).

At this time, the controller may control the operation of the circulation pump 70 to be interlocked with a synchronization signal when the jet fan (JET) is driven.

In addition, the jet fan (JET) may be operated periodically or according to a detection signal of a plurality of sensors (sensors measuring the concentration of carbon monoxide, carbon dioxide, etc.) installed inside the underground parking lot.

In addition, the circulation pump 70 supplies and circulates condensed water to the fan cooling coil 230 installed in front of the fan assembly (MFAN), which is configured by assembling a plurality of air supply fans or exhaust fans. Is composed.

When configured in this way, cooling air is discharged from the front of the fan assembly (MFAN) including the jet fan (JET), especially the air supply fan used to supply air, so it is effective to cool the interior space of the underground parking lot. Through the heat island phenomenon is also suppressed.

On the other hand, the jet fan (JET) is provided in the form as shown in Figs. 3 and 4 to perform a cooling function, and is usually installed on the ceiling surface of the underground parking lot.

Such a jet fan (JET) includes a fan body (100).

In addition, both sides of the fan body 100 are extended to have a predetermined length, and then enlarged portions 110 are formed at both ends.

This expansion unit 110 is to increase the amount sucked when inhaling, and at the same time is configured in the form of a funnel whose diameter is increased in order to diffuse in the blowing direction when blowing.

In addition, a fan unit 120 is mounted inside the center of the length of the fan body 100.

At this time, the fan unit 120 includes a fan motor capable of forward or reverse rotation, and a fan fixed to a rotation shaft of the fan motor.

Therefore, since the jet fan (JET) according to the present invention performs a ventilation function according to the pollution level of the underground parking lot in normal times, the blowing direction of the fan unit 120 is determined to discharge smoke closer to the ignition point when a fire occurs. Unlike the previous one, which was blown in only one direction, it eliminates the fear of spreading smoke to the entire underground parking lot.

For example, if there is an ignition point close to the side where the air supply fan is installed, the jet fan (JET) is operated to blow air toward the air supply fan, and at the same time, the air supply fan is converted to an exhaust fan in this case.

That is, the supply fan and the exhaust fan are also installed to be able to rotate forward and reverse, and the rotation direction can be changed according to a control signal from the controller.

In addition, the control signal of the controller enables independent power supply and control as well as control by the central monitoring in the event of a fire, so that the central control does not stop the power supply and operation due to instability of the control signal. This should be done so that the fire extinguishing facility can function again.

In addition, a cooling coil 130 is spirally wound around the inner diameter of the fan body 100 and disposed.

More specifically, cooling coils 130 are spirally wound around the inner diameters of both sides of the fan body 100 between the fan unit 120 and the expansion unit 110, and the fan unit 120 is rotated forward and backward, so cooling The coil 130 must be installed on both sides of the fan unit 120.

In addition, the cooling coil 130 is piped to recover condensed water from an air conditioner (not shown) of a corresponding building in which an underground parking lot is installed, and after being installed in the fan body 100, a separate water discharge tank (not shown) is treated. It is piped so that it can be done.

Here, the condensed water of the air conditioner is water that is usually discharged and discarded, but is water that maintains a temperature lower than room temperature (18°C) having a temperature of about 14-16°C.

Therefore, when it is introduced into the fan body 100 and placed in the inner diameter of the jet fan, it has a cooling function in the underground parking lot, which is an underground space maintained at a relatively high temperature.

For example, if the underground space is about 40℃, the condensed water is about 14℃, so the temperature difference is almost three times, so you feel relatively cool. In other words, it means that the cooling function can be sufficiently performed.

In addition, the structure that can be drained separately for circulation of the water temperature of the storage tank and the condensate piping system should not interfere with the operation of the cooling and heating system.

Therefore, since the condensed water that has been discarded can be utilized, energy saving and efficient use of energy are possible.

That is, since the jet fan (JET) according to the present invention is equipped with a kind of heat exchange function through the cooling coil 130, the airflow passing through the fan body 100 is the airflow guiding phenomenon of the cooling coil 130 wound in a spiral shape. By changing the shape of the cyclone and discharging, the air inlet ratio is increased, and the discharge reach is also remarkably increased, thereby improving the air transfer capability.

In addition, since the cooling performance is also included, the smoke contained in the air stream is cooled together, so that the temperature of the smoke is lowered during ventilation, reducing the heat island phenomenon, thereby protecting the safety of evacuees and contributing to reducing personal injury.

On the other hand, as shown in FIG. 5, the fan assembly MFAN has a multi-fan 200 shape.

That is, it may be an air supply multi-fan made by gathering a plurality of air supply fans or an exhaust multi-fan made by gathering a plurality of exhaust fans.

If this is made more common, a plurality of single fans 210 are gathered to form one multi-fan 200, and the single fan 210 may be an air supply fan or an exhaust fan.

At this time, the single fan 210 includes a fan driving motor 212 capable of forward or reverse rotation according to a control signal from a controller (not shown), and a blowing fan 214 fixed to the motor shaft of the fan driving motor 212 ).

Therefore, in the present invention, the multi-fan 200 installed in each of the cavity openings 20 and 30 (see FIG. 1) may operate as an air supply fan in some cases, or as an exhaust fan in some cases. This is because forward and reverse rotation is possible.

For this reason, in the present invention, there is no need to distinguish between an air supply fan and an exhaust fan.

Since the multi-fan 200 according to the present invention performs the ventilation function according to the pollution level of the underground parking lot during normal times, the blowing direction of the fan driving motor 212 is determined to discharge smoke closer to the ignition point when a fire occurs. Unlike the previous one, which unilaterally blows in only one direction, it eliminates the fear of spreading smoke to the entire underground parking lot.

For example, if there is an ignition point near the side where the air supply fan is installed, the air supply fan rotates in reverse to act as an exhaust fan, and the exhaust fan installed on the other side plays the role of an air supply fan and is operated so that the exhaust can be immediately exhausted.

In addition, the control signal of the controller enables independent power supply and control as well as control by the central monitoring in the event of a fire, so that the central control does not stop the power supply and operation due to instability of the control signal. This should be done so that the fire extinguishing facility can function again.

In addition, fan cooling coils 230 are installed in front of the multi-fan 200 at regular intervals.

The fan cooling coil 230 is fixed to the coil frame 220, and the coil frame 220 has a shape of a square frame with an empty inside.

At this time, it should be noted that cooling fins or radiating fins should not be formed on the outer circumferential surface of the fan cooling coil 230.

This is a very important matter in the present invention, and if a plurality of cooling fins or radiating fins are present, the blowing pressure blown from the multi-fan 200 increases, making it difficult to blow static pressure.

In other words, the fan cooling coil 230 in front of the multi-fan 200 interferes with the air flow (when supplying or exhausting), that is, the airflow, which significantly decreases the supply air or exhaust efficiency, thereby facilitating air circulation inside the underground parking lot. Because it becomes impossible.

Therefore, in the present invention, a cooling fin or a radiating fin should never be formed, since the low static pressure coil shape must be maintained.

In addition, the multi-fan 200 can be freely implemented whether the single fan 210 is arranged horizontally or vertically, and the fan cooling coil 230 introduces condensate that is discharged from the air conditioner of the building where the underground parking lot is installed to flow through. It is piped so that it can be done.

Therefore, since the condensed water that has been discarded can be utilized, energy saving and efficient use of energy are possible.

In addition, in case of fire, it also includes cooling performance that lowers the temperature and humidity at the same time, so the smoke contained in the air stream is cooled together, so the temperature of the smoke is lowered during ventilation, reducing the heat island phenomenon, thus protecting the safety of evacuees and harming people. It contributes to reducing.

The ventilation and ventilation control method of such a ventilation system is as follows.

As illustrated in (a) of FIG. 6, the multi-fan 200 installed in the first cavity SP1 performs a function as an air supply fan, and the multi-fan 200 installed in the second cavity SP2 is It functions as an exhaust fan.

Therefore, the multi-fan 200 and the jet under the control of the controller according to the detection signal transmitted from a number of sensors (carbon monoxide detection sensor, carbon dioxide detection sensor, smoke detection sensor, temperature detection sensor, flame detection sensor, etc.) installed throughout the underground parking lot. The fan (JET) is driven to ventilate the air inside the underground parking lot.

Then, when a fire occurs at the ignition point (ZONE) as shown in Fig. 6(b), the controller checks which of the sensors that detect the fire (eg, smoke detection sensor or temperature detection sensor) has detected the ignition spot (ZONE). ) Is determined by calculating which one of the first cavity sphere (SP1) and the second cavity sphere (SP2) is closer.

This calculation can be easily judged because the sensor installation point is already known at the time of design.

For example, as shown in (b), if it is determined that it is close to the first cavity SP1, the controller converts the multi-fan 200 installed in the first cavity SP1 to the exhaust fan function, and the second cavity SP2 The installed multi-fan 200 switches the air supply fan function.

Then, since the multi-fan 200 of the first cavity SP1, which has been performing the air supply fan function until now, is converted into an exhaust fan, the ventilation effect is very excellent because it is immediately exhausted from the ignition point (ZONE).

In other words, since the smoke does not spread to the entire underground parking lot and is immediately exhausted, the risk of safety accidents and personal accidents can be reduced by that amount.

In addition, underground parking lots are mostly formed with multiple floors of two or more floors, and the first and second cavities (SP1, SP2) are shared, so if a damper (not shown) is installed for each floor and configured to be opened and closed by a controller. In the event of a fire, the dampers on the rest of the floor except for the corresponding floor are closed to prevent the smoke from flowing back to other floors, and in the non-fire section, it is possible to prevent smoke inflow to the staircase room and various bits by maintaining a positive pressure state. .

50: air conditioning system 60: thermal tank
70: circulation pump 100: fan body
110: expansion part 120: fan unit
130: cooling coil 200: multi-fan
210: single fan 220: coil frame
230: fan cooling coil

Claims (2)

Insulation tank 60 for collecting condensed water discharged from the cooling and heating system (air conditioner or system air conditioner) 50 of a building in which an underground parking lot is installed to keep it at a constant temperature; A circulation pump 70 installed at the discharge end 62 of the thermal insulation tank 60; A jet fan (JET) installed on the ceiling of an underground parking lot and capable of forward and reverse rotation while blowing the supplied air toward the exhaust; A cooling coil 130 connected to the discharge end of the circulation pump 70 and arranged by winding a spiral around the inner diameter of the jet fan (JET) and piped to be discharged; A multi-fan 200 capable of forward and reverse rotation, which is made up of a plurality of single fans 210 installed in the first and second cavity ports SP1 and SP2 to perform a supply air or exhaust function; A fan cooling coil 230 installed at a predetermined interval in front of the multi-fan 200 and connected to the discharge end of the circulation pump 70, wherein the jet fan (JET) includes the fan body 100 and , Consisting of an expansion unit 110 expanded in the form of a funnel on both sides of the fan body 100, and a fan unit 120 mounted inside the center of the length of the fan body 100 and comprising a fan motor and a fan; The cooling coil 130 is spirally wound around the inner diameters of both sides of the fan body 110 between the fan unit 120 and the expansion unit 110; The fan motor constituting the fan unit 120 is a motor capable of forward or reverse rotation, and a jet fan (JET) and a multi-fan 200 are driven and controlled by a controller according to a plurality of sensor detection signals. A method for controlling ventilation and ventilation in a system;
The multi-fan 200 normally installed in the first cavity SP1 performs a function of an air supply fan, and the multi-fan 200 installed in the second cavity SP2 performs an exhaust fan function;
When a fire is detected by the sensor, the controller checks the sensor that detected the fire, and calculates and determines whether the ignition point (ZONE) is closer to which of the first cavity (SP1) and the second cavity (SP2);
When the cavity near the ignition point (ZONE) is determined, converting the multi-fan 200 installed in the cavity into an exhaust fan, and converting the multi-fan 200 installed in the opposite cavity into an air supply fan to smoke ventilation; including Ventilation and ventilation control method of an underground parking lot ventilation system capable of switching forward and backward using a sensor and having a cooling function and a backflow prevention damper.
The method according to claim 1,
When the underground parking lot is formed with multiple floors of two or more floors, a damper is installed for each floor of the shared first and second cavity (SP1, SP2) to be opened and closed by a controller. The ventilation and smoke control method of an underground parking lot ventilation system equipped with a cooling function and a reverse flow prevention damper is possible to change forward and reverse directions using a sensor, characterized in that the smoke is prevented from flowing back to another floor.

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