JPS5977236A - Air conditioning in air pollution district - Google Patents

Abstract

PURPOSE:To control the entry of polluted air into a building by a method wherein the building is pressurized and the pressurizing control is performed so that the amount of the outside air to be taken in is made less, when the outside air pollution attains a predetermined level, than the taken-in air amount at the time when the pollution is below said level and yet the taken-in outside air is pre-treated and then led to an air conditioner. CONSTITUTION:An amount of the air to be discharged from an exhaust port 3 is controlled based upon the indication signal of a detector 9 to detect the difference between pressures inside and outside a building so as to keep the pressure of the building higher than the outside pressure. A course of the outside air flow passes through an air take-in port 2 and divided into a bypass 8 and a passage to an air purifying device 6. When the air pollution exceeds a predetermined level, a signal from an air pollution sensor 7 puts an electromagnetic damper 10 into closing action and an electromagnetic damper 11 into opening action and simultaneously the air purifying device 6 into operation. The device 6 consists of an electric precipitator and a combined activated carbon filter. When ashes and dusts fall heavily, the air to be taken-in is additionally past through a settling sand eliminator. Because the sensor 7 controls so as to decrease the amount of the outside air to be taken-in as small as possible in proportion to the increase of the ratio of the air flow sent to the air purifying device 6 to that passing through the bypass 8, the small capacity of the pretreatment device is satisfactory for service and consequently the burden of installation cost is resulted to be small.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air conditioning method for buildings in air polluted areas.

For example, areas near volcanoes emitting volcanic smoke, such as Sakurajima, are irregularly affected by falling ash of varying sizes. This ash fall takes on shapes ranging from fairly large particles to submicron-sized fumes.
Fine particles can affect remote areas. If the buildings existing in this area are industrial facilities such as high-end product production and processing factories, pharmaceutical factories, etc., or luxury hotels, etc. It becomes huge. This type of intrusion is not only caused by forced intake of air for air conditioning, but also by intrusion through gaps in various parts of the building, or by adhering to people, cars, luggage, etc. as they enter and exit the building. It takes a variety of forms, including When ash dust enters a building, it is difficult to remove it, especially if it is in the form of fume, and it has a negative impact on the interior and other equipment, and in the case of production and processing facilities, 1/C
1-j Decrease the quality of the product. In particular, plume fall is often accompanied by hydrogen sulfide and other low-sulfur corrosive substances, which can cause corrosion of various equipment, contact failures, poor insulation, bearing wear, rust, etc., and can cause deterioration when exposed to chemicals. cause problems. In addition, damage to air conditioning equipment occurs in the duct system, around the air conditioner, heat source water system, cooling tower size, and other areas.

Such damage may be temporary, but there are also areas where it continues irregularly and semi-permanently, and it may be necessary to construct all international-class hotels or modern factories that require high precision in these areas. VC Ni, drastic measures are required to deal with this ash fall. The present invention has been made for this purpose.

The present invention attempts to solve this difficult problem by improving the mechanism of ash dust intrusion through metal air treatment.
Moreover, it is unique in that it has been systemized so that it can be carried out in a manner that is economical and economical.

The basic principle is to pressurize the building by controlling the amount of outside air that is forcibly taken in and the amount of exhaust air that is forcibly exhausted so that the internal pressure of the building is higher than the outside pressure, thereby reducing the degree of contamination of the outside air. While monitoring, if outside air pollution reaches a predetermined level, the amount of outside air will be reduced for several people depending on the degree of outside air pollution compared to when it is below this level, and the pressurization control will be carried out, and several people at that time will be The outside air was pre-treated before being introduced into the air conditioner.

The details of pressurization control, air treatment for ash dust prevention, cleaning of contaminated air, etc. adopted in the present invention will be explained in detail below with reference to the attached drawings.

FIG. 1 shows an example in which the air conditioning method of the present invention is applied to a hotel with an underground garage G1 and a first basement floor DF1, with seven floors above ground. P and T are parking towers,
A) is the guest room, (B) is the hallway, () and ) is the entrance, (D) is the 1 parking lot entrance, (E) is the ramp for car access, (H) is the kitchen (the kitchen for the restaurant on the first floor), ( G) shows the underground machine room, (H) shows the rooftop machine room, and the figure shows a narrow cross section of the building. - is a horizontally long hotel that extends from the front to the back of the page. There is a gate at the parking lot entrance and exit (・
Except for special cases, the inside of the building is virtually cut off from the outside air, except for opening and closing the doors of On the 6th and 7th floors above ground, air conditioner 1' in the ground machine room (H) handles all air conditioning. The interior system a OAV system and the perimeter system fi VAV system are used for air conditioning. The underground air conditioner 1 takes in outside air from the outside air intake 2 provided at the top of the parking tower PT, and the ground air conditioner 1'vc takes in outside air from the outside air intake 2' on the rooftop. The air is discharged from the upper exhaust port 6 and the rooftop exhaust port 5', respectively. 4.4' is the exhaust fan.

In order to achieve the above object, the present invention controls the internal pressure of the entire building to be higher than the external pressure.
Depending on the structure and function of the building, external exhaust treatment control, air shower control at entrances and exits, 1/ic if there is a parking lot [parking lot air supply control, if there is a kitchen, VC is kitchen exhaust control, and furthermore, in the cooling tower water quality management control. In the building example shown in FIG. 1, each control system is generally shown in FIG.

In Figure 2, cata central monitoring control panel, 01-05
indicates a local supervisory control panel, and in the example shown, C
, Control of the outside exhaust treatment system S1 on the 2nd floor 1 above ground, C1 control of the outside exhaust treatment system 81' on the 3rd to 7th floors above ground, C2 is Air Java S2 control at the entrance, 02'II-j rooftop entrance control of the air shower S2', C, control of the parking lot air shower (controlled by the control Ha of the parking lot air supply S6), C4 is the control of the kitchen exhaust S4, 05 is the control of the cooling tower water quality pipe S5, all Each one is in charge. O, idc! 2
And as a relay base for C3, luxury 01'1r102'
It also serves as a relay base for C4 and C5. It is also in charge of the elevator displacement control S1.The local monitoring control panels C4 to C5 of each subsystem S1 to S5 are in charge of this, but the pressure control necessary for the building as a whole is This will be carried out using a central monitoring system VCX.

This centrally monitored all-r computer does this.

Each of the subsystems 81 to S5 will be explained in detail below. Figures 1 and 2 show examples of buildings that have all of S1 to S5;
If the species has two or more species singly or in combination'! There is II.

FIG. 6 shows an outside air and exhaust gas processing device (corresponding to 5iVc shown in FIG. 2) applied to the pressurized air conditioning equipment of the present invention. This device is installed in the outside air intake path from the outside air intake port 2 to the air conditioner 1 so that the air purification device 6'ff can be bypassed, and the outside air intake path is connected to the air purification device based on the instruction signal of the outside air pollution sensor 7. The exhaust port 6 is configured to be completely switchable between the path passing through the building and the bypass path 8.
It is configured to control the clean sound of the exhaust gas discharged. Each of the outside air route, supply air and return air route, and exhaust route will be explained in detail in detail.The amount of air flowing through these six routes is controlled to an appropriate amount by the local control panel 01, are managed comprehensively according to the degree of contamination.

First, the outside air path is a path from the outside air intake port 2 to the air conditioner 1. This path consists of a bypass path 8 and a path through which the air purifier 6 passes, and which path the outside air is taken through is selected based on a signal from the outside air contamination sensor 7. This switching or distribution of the amount of outside air is performed by electromagnetic dampers 10 and 11. If the pollution is above a predetermined level, the electromagnetic damper 10 closes and the electromagnetic damper 11 opens.

At the same time, the air purification device 6 is activated. This air purification device 6 consists of an electrostatic precipitator and an activated carbon composite fill, and the electrostatic precipitator collects all the fine ash particles of 5 μ or less that cannot be captured by normal fill, and the activated carbon composite filter Hso3:7 absorbs all other gas components. do. VC when the falling ash dust was intense.
, is passed through the entire sand removal device as shown in Fig. 4.

The eliminator 12 and afterfilter 16 of this device are vibrated with a vibrator 14, and the collected ash is sieved off and received by a hon-gu 15, which is then sent to a dust filter 16.
Vc, J: 17 dust collection bags are stored therein. The outside air pollution sensor 7 monitors whether the outside air condition is in a normal range, a warning range, a dangerous range, etc., and if it enters a warning range, i
c[, together with the opening/closing control of the dampers 10 and 11, the amount of outside air taken in by the air supply fan 20 is controlled to be as small as possible as the proportion of ventilation to the air purifying device 6 increases. For example, in the normal range, outside air is taken in so that the amount of oxygen supplementation is about Outside air Vr of about 1d15 to 10 (yl/Hr-person) in the area
- Control the amount of outside air to a small amount so that the amount of oxygen supplementation is as follows. However, as will be described later, the displacement will be reduced accordingly.

The air supply and return air paths consist of air supply ducts 21 from the air conditioner 1 to CAV units or VAV units disposed in various parts of the building, and return air ducts 22 that return to the air conditioner iVc from suction ports in various parts of the building. W indicates a humidifier. The return air duct 22 branches into a flow path to the air conditioner 1 and a flow path to the exhaust port 6 on the discharge side of the return air fan 26, and electromagnetic dampers C24 and 25 are interposed in each branch path. ing. The opening degree of the electromagnetic pumps 24, 25 is also adjusted by the control panel 01, and the amount of return air and the amount of exhaust air to the air conditioner 1 are adjusted appropriately.

The exhaust route guides the exhaust air from various parts of the building to the exhaust port 6 at once, and this is done by the exhaust fan 4Vc.

When the parking lot is used, a portion of the exhaust gas from the VC is guided into the parking lot (this aspect will be described later). Exhaust duct 26
The amount of exhaust air sent to the exhaust port 5VC by Vc is adjusted by an electromagnetic damper 27VC- installed in the exhaust duct 26.

Control panel C, [, outside air pollution sensor 7 and differential pressure detector 9
The electromagnetic damper 10.1 in the outside air path
The amount of air blown by the air supply fan 20 is controlled in parallel, and at the same time, the opening degrees of the electromagnetic dampers 24, 25, and 27 are controlled. This control is computer-analyzed in the central monitoring control panel CC, and is controlled so that the internal pressure of the entire building is always higher than the external pressure, and as the degree of outside air pollution increases, the amount of outside air is reduced for several people. The control operation is performed to reduce the displacement so that the pressurization can be maintained at the same time.

In this way, the device shown in Figure 6 controls the pressurization of the entire building and also processes ash completely automatically.

It is possible to supply the necessary and sufficient amount of oxygen while preventing drafts from entering the gaps between various parts of the object, and to reduce the amount of air pre-treated by the LD purifier 6 when the contamination is severe. Because of this, the capacity of this pretreatment device may be relatively small and the burden on equipment can be reduced.

Figures 5 to 8 show that when the pressurized air conditioning system of the present invention is applied, contamination infiltrates into buildings that have entrances and exits that are frequently accessed (e.g., hotel entrances, factory loading/unloading entrances, etc.). An air shower device (subsystem S2) that effectively prevents

As mentioned above, if the inside of the building is pressurized, drafts can be virtually prevented, but if there is a doorway that has a lot of people going in and out, the exchange air due to the temperature difference between the inside and outside of the building will cause drafts to come along with people or objects going in and out. Contaminants enter the building. Fifth
The device shown in Figure 8 is designed to prevent this.
A floor plan is shown. Note that Df1 in FIG. 5 is a normal entrance door, and an entrance/exit device U according to the present invention is attached alongside this normal entrance door D.

FIG. 6 is a plan cross section from the center of the doorway device U, FIG. 7 is a plan cross section of the ceiling portion of the doorway device U, and FIG. 8 is a front view of the doorway device U. As shown in these figures, this entrance/exit device forms a passage space 63 between the outer door 51 and the inner door 62, and has air outlets 65 on both sides that blow out high-speed airflow into the passage space 66. An air circulation path is formed in which a plurality of blowers 34 are disposed on the wall and ceiling to suck air in the passage space 33 and send it to each of the air outlet filters 5. A filter unit 36 is installed in the road.

The outer door 61 and the inner door 59 are cross doors that rotate about one vertical axis, and the rotational position of these is an arbitrary position V? -The entrance/exit has a small sash around the entire width of this cross door so that there is less gas passing through.

Between these two revolving doors 61 and 32, a passage space 63 is formed into which several people can enter.

This passage space 33 includes both revolving doors 31 and 32, both side walls 3
7 and 38, a ceiling surface 39, and a floor surface 40 (Fig. 8), but a cavity that communicates with each other is formed behind both side walls 37 and 68 and behind the ceiling surface 39 (behind the ceiling). has been done. That is, the revolving doors 61 and 6 of both passage spaces 36tJ
2, and is defined by both side walls of a double-walled structure, a ceiling surface and a floor surface having an attic space, and a cavity is formed in which the double wall space and the attic space communicate with each other. These cavities communicating with each other constitute a part of the air circulation path.

A large number of air outlets 55 are arranged on both side walls 37 and 38 and on the ceiling surface 69, and are directed toward the inside of the air passage 63.
A suction port 42 is provided below both side walls 3Z and 38. A blower 64.64' is installed to suck the air in the space in the attic space IC ('-), and the outlet of this blower 34.34' is connected to the filter unit 66.3.
6'. These blowers 34, 64' and filter units 66, 36' are respectively installed in the space above the ceiling where the revolving doors 31 and 32 are located. The goal is to Air is supplied from the filter unit 36, 36' through each outlet 351/Cij air supply duct 43, and the supply air cleaned by the filter unit 36, 66' is supplied from each outlet 35 to an air jet. It is designed to be able to be sprayed completely.

This filter unit is equipped with a high-performance filter 41, and a pre-filter 44 is also provided at a removable position near the suction port 42, and this filter 44 traps coarse particles. A material with high performance and/or a material with adsorption performance such as activated carbon that adsorbs harmful gases is used in multiple layers.

Therefore, the return air taken into the double wall space from the passage space 36 via the suction port 42 is the pre-filter 4.
After coarse particles and harmful gases are removed in step 4, they enter the attic space through the double wall space and are sent to the blower 34.6.
Each filter unit 66.56'VC enters from 4',
Here, after further fine particles are captured, air is supplied to each outlet 65 through the air supply duct 46, and the purified air is blown out as an air jet from each outlet. The air jet receives the air from the human body 1 in the passage space and blows off the pollutants attached thereto, and the contaminated air after this air shower is sucked into the suction port 42Vc again and circulated. As a result, contaminants accompanying human-sized objects entering the building through the passage space are removed. Furthermore, if actions such as lifting clothes or brushing shoes and other items are added in this passage space, the pollution prevention effect will be further enhanced.

On the other hand, the drive VC of this device U provides negative pressure in the double wall space and attic space, and high positive pressure in the passageway space, but substantially the entire device is installed inside a building. [
, J: Although the airflow may flow from the inside of the outside door 61 to the outside, the flow of outside air from the outside into the inside VC is suppressed, and the space between the double wall space or attic space and the space inside the building is suppressed. By installing a pressure regulating damper 45 in the VC to completely absorb the pressure difference, it is possible to suppress the increase in negative pressure by discharging non-contaminated air. In this way,
The entry of contaminated outside air into the building through doorways can also be effectively controlled. The local control panel C2 receives instruction signals from the pressure adjustment damper 45c and the differential pressure gauge 47 (FIG. 8), and adjusts its opening based on instructions from the central monitoring control panel aC (FIG. 2). is adjusted. Starting and stopping of the drive of the device U is automated in response to the entry and exit of objects, and a central monitoring control panel CC constantly monitors the state and performs appropriate control according to the air condition.

In this way, even if the building has entrances and exits through which people frequently enter or exit, the intrusion of pollutants that enter the building through the entrances and exits will be effectively controlled by the aforementioned building pressurization control 7 stem. is prevented.

Next, Vc will be described when the present invention is fully implemented in a building having a parking lot (subsystem 53 described above). Conventionally, in general buildings, the entrances and exits of parking lots were left open, and the exhaust gas from the parking lot was normally exhausted to the outside of the building through exhaust ducts. For this reason, pollutants adhere to cars and are carried into buildings, and these pollutants often accumulate within the building without being discharged outside the system. The present invention proposes a system in which the entrained pollutants brought in by vehicles are guided to the parking lot by pressurized/stem exhaust air inside the building, and this exhaust air is used to prevent the entrained pollutants from escaping into the building. This method according to the present invention is based on the ninth to first
As shown in Figure 4, on the parking lot floor of the building, a jet air flow blowing unit for air conveyance is placed near the ceiling of this floor, and this unit VC blows air toward the entrance and exit of the car on this floor. The air is directionally conveyed, the air conveyed to the table entrance is sucked, and the air is blown outward from an air blowing nozzle provided around the table entrance passageway in an inclined manner. The feature is that a part of the exhaust air from the entire building is used as the air, and the amount of this exhaust air is controlled under conditions such that the building's internal pressure is controlled for horses.

To explain specifically according to the embodiment shown in the drawings, No. 9
The figure shows a method of conveying air according to the present invention on a parking lot floor in a building. A recone shaft 52 for exhausting the building is provided near the entrance where the elevator 51 is located, and an air supply fan 53iC is used to convey air from the air supply port 54. An example of supplying air into a parking lot is shown. Several numbers 55a to 55e are written near the ceiling of this parking lot floor.

The units 55a to 55e are designed to blow out a diene air stream to attract and transport ambient air near the jet stream in the direction of the jet stream. This unit itself has a structure that supplies high-pressure air to the external jet nozzle, and when the entire jet stream is formed using ambient air, the air taken in from this ambient air intake is made high-pressure by a fan, There is a complete structure for supplying this to the jet nozzle, and when forming a jet stream using air from a separate system (exhaust air), the jet nozzle is placed in the exhaust duct of the high-pressure air source. Jet air blowers Yuyun l-55a ~ 55eid are arranged near the ceiling of the parking lot floor. units) 55
The arrangement is such that the ambient air is sequentially conveyed in one direction, such as cVc conveyance. and,
The ambient air conveyed by using this jet stream as a conveying means is ultimately directed toward the table entrance/exit 56.

Figures 10 to 12 show the details of the entrance to the parking lot. Cars entering from outside A to indoor B are given an air shower in this population area, and at the same time contaminated air from outside enters this entrance. The figure shows a structure that prevents people from entering the parking lot through the opening of the parking lot.

That is, the air pro-device installed in this military population department has an air intake port 57 for taking in air from the parking lot.
and air blowing slits 59 to 61 provided around this military passageway and oriented toward the outdoors, and fans 58 and 58' that force the air taken in from the air intake port 57 to the slits 59 to 61 Vc. and are arranged in units.

In the illustrated example, the air intake port 57 is provided near the ceiling surface of the indoor room B so as to take in the air conveyed by the jet air blowing unit 55'eiC at the rear end. After creating high pressure with the fans 58 and 58' and VC, the slits 59a and 59b on both side walls
1 Surin 1-60 on the ceiling and slit 61 on the floor
The VC is configured such that high-speed air is blown out at an angle outward from the entire circumference of the inlet passage. Therefore, when a car passes through the air blow system, a high-speed air current is blown diagonally from the direction of the vehicle into the entire surface of the car body, and pollutants adhering to the car body are blown away to the outside.

In the case of a parking lot with a separate exit for cars, parking lots 16-1
As shown in Figure 4, an air blowing device smaller in scale than the inlet may be installed. That is, in the examples shown in FIGS. 10 to 12, the fan capacity can be reduced and the number of grooves and slits can be reduced. It is sufficient to form an air barrier at this outlet to prevent contaminated outside air from entering the building through this table outlet. It is possible to create a complete outward blowing airflow by simply using the

In accordance with the present invention, a differential pressure may occur between indoor B and outdoor A due to the drive VC of the air blow device.
To cope with this, differential pressure detectors 62 are installed inside and outside the air blowing device, and the fan 58 is controlled in stages according to the detected value of the differential pressure detector 62. This control is carried out by local control panels C3vc, J:, which are under the supervision and command of the central supervisory control panel CC (FIG. 2).

In this way, by combining the air conveying jet air blowing unit and the air blowing device, the parking lot can be ventilated while forming an air flow that is opposite to that of the conventional ventilation system for parking lots in buildings. This prevents outside air from entering through the desk entrance in air polluted areas, and also removes pollutants adhering to cars at the entrance, effectively preventing contamination inside the building via the parking lot.

Next, we will discuss air treatment (subsystem 54) VC when a relatively large-scale kitchen (for example, a hotel restaurant or a factory cafeteria) exists in a building. The presence of this kitchen can cause an accidental lance when pressurizing the inside of a building, and if handled incorrectly, it can also cause a fire through the exhaust hood. For this reason, in the equipment of the present invention, an air processing system for such a kitchen is configured independently, and this is controlled by a central monitoring and control panel CCvc, and fire elements can also be managed. It is. This kitchen equipment is the first
As shown in FIG. 5, there is a kitchen exhaust hood 72, a kitchen exhaust air duct 78 that collects the exhaust air of the kitchen exhaust hood 72 separately from the exhaust air of other rooms, and this kitchen exhaust air duct 78.
An oil mist separation device 80 is configured to spray water on the ventilated/ζ side 79vc at the oil mist separation device 80, and the oil and fat components are separated from the oil emulsion wastewater generated in the oil mist separation device 80 and circulated again as water spray in the oil mist separation device 80. A fire extinguishing agent is injected toward the emulsion-like oil and fat separation device 81, the light and/or heat sensor 82 attached to each of the kitchen exhaust hoods 72, and the kitchen range 71. The amount of air discharged from the fire extinguishing agent injection device 88 and the exhaust fan 86 in the kitchen exhaust air duct, one drive of the fire extinguishing agent injection device 82, the water spraying of the oil mist separation device 80, and the closing of the gas valve in the kitchen 1/7th It is comprised of a control device 84 (local control i+lQI board C4) which controls various operations using signals from the light and/or heat sensor 82.

In this equipment, the kitchen exhaust air is not directly connected to the normal exhaust air duct 74 that connects to the exhaust lower 6 other than the kitchen, but rather the kitchen exhaust air is connected to the oil mist separation device 8.
0 and then connect it to the exhaust air duct 74Vc or discharge it to the outside of the system independently. This kitchen exhaust air passage 78 includes an exhaust fan 86 driven by a variable speed motor and an oil mist separation device 80.
is the installation.

The oil mist separator 80 includes a ventilation barrel luer 9 disposed substantially perpendicular to the traveling direction of exhaust gas, a spray nozzle 85 disposed so as to spray water toward the surface of the ventilation barrel luer 9, and an area ε free. - 86 is housed in a single casing, and the VC inside this casing is provided with a waste liquid outlet 87. By sprinkling water on the surface of this ventilation panel 79, the oil mist entrained in the kitchen exhaust air is effectively separated from the exhaust air and is discharged from the oil mist separation device as oil emulsion waste water. This oil mist separator 80a not only removes oil mist from the kitchen exhaust gas, but also functions as a fire suppression shutter to prevent flames entering from the kitchen exhaust hood 72 from spreading.

The oil emulsion wastewater discharged from this oil mist separator #80 is purified by an oil and fat separator 81 and then recycled for use as water sprinkling again. This oil and fat separator 81 is constructed by dividing the entire tank and installing 90 aeration nozzles, and from these aeration nozzles, fine air bubbles are blown into the liquid by an air pump 91Vl-, thereby forming all oil and fat flocs. This oil and fat floc is removed by a filter 92.

The purified water is circulated to the spray nozzle 85 by the circulation pump 93Vc. Reference numeral 94 indicates a water supply valve, 95F'i a liquid detector, and 96 an overflow outlet pipe.

A circulation pump 93 and a water supply valve 9 are driving equipment in the oil mist separation device 80 and the oil and fat separation device 81.
4. The drive of the air supply pump 91 and the control of the variable exhaust fan of the kitchen exhaust air duct 78 are performed by transmitting signals from the light and/or heat sensor 82 attached to the exhaust hood 72 to the control device 84.
(a,;) to read it and do it properly. -It has become.

This light and/or heat sensor 82 uses a special sensor that outputs a signal when the temperature of the kitchen exhaust hood 72 remains above a predetermined temperature for a predetermined period of time. In addition to detecting the amount of heat using this temperature sensing VC, a photoelectric switch for detecting flames is attached to the kitchen exhaust hood, and it can be used as a fire detector that sends a control signal when flames continue for a certain period of time. It is composed. Therefore, the first
The sensor indicated by 82 in FIG. 5 actually consists of two devices: a temperature sensor and/or a light amount sensor, and signals from these are used to control the rotation speed of the exhaust fan 86. Further, a VC is provided so that the rotation speed of the exhaust fan 83 can be controlled by a signal from a flame sensor 106 installed near each range. Note that a 107i earthquake detector is shown.

The extinguishing agent injection device 88 consists of a extinguishing agent nozzle 100 for injecting extinguishing agent toward the range 711/C from the vicinity of the kitchen exhaust hood 72, and various equipment for supplying air to the extinguishing agent nozzle 100. . This fire extinguishing equipment includes a water supply pump 101, a light water stock solution tank 102, and a mixer 1.
06, Heragu 104, electric CO2 cylinder 105, etc., and when the extinguishing agent is sent from these extinguishing agent equipment to the extinguishing agent nozzle 100, the temperature of the gas passing through the kitchen exhaust hood 72 is controlled by the signal from the sensor 82. This is performed when the flame is equal to or higher than a predetermined value and continues for a predetermined time, and the flame continues to be generated for a predetermined time.

In this way, when a relatively large-scale kitchen exists in a building, the local control panel 84 (C4) uses a separate system to handle the kitchen exhaust air under the instructions of the central monitoring control panel CC, and adjusts the internal pressure balance of the building. This subsystem 541C simultaneously establishes a management system that handles processing while collecting adjustment fees and prevents the risk of fire.

In implementing the present invention, it is also an important issue to deal with water contamination in a cooling tower, which is one part of an air conditioning system, that is, to prevent contamination of cooling water caused by insects that interact with contaminated outside air. Regarding the subsystem 55VC to prevent contamination of the water system in this cooling tower,
A detailed explanation will be given below with reference to the embodiment shown in FIG.

In FIG. 16, 110 is the main body of the cooling tower, and a hood 111 to protect from falling ash dust is provided over the outside air inlet.
Moreover, the exhaust pipe 112 is bent in the direction opposite to the direction of the volcano. The cooling tower is configured to utilize a portion of the blowdown water for outside air cleaning. That is,
Normally, a part of the cooling water is blown down from outside the system, but in this system, an amount of water corresponding to this blowdown water is used for outside air cleaning, and a ventilation pipe is installed at the outside air intake of the cooling tower. - A pipe 114 and a nozzle 115 are provided for guiding a portion of the blowdown water onto the surface of the ventilation panel 116 and sprinkling water.

The lower part Vr- of this ventilation panel 116 is the water collection tank 1
16 is installed, and the polluted water that has collected pollutants in the air is first separated by sedimentation of particulate matter in a rigid filter 117, and then collected in a water treatment tank 118. Here, the chemical injection processing is carried out by the chemical injection device 1191/C, and the detoxified water is recirculated to the water sprinkler system of the cooling tower, and a portion is collected in the gray water tank and used as miscellaneous water. In addition, 12 in the figure
12 Dissolved gas removal device, 122 Refrigerator condenser,
126 cooling water pumps, 124 fo-cal control m (c
5) Showing 2. This local control panel 124 monitors the degree of water pollution in the cooling tower (pollution sensor 125) and the water pollution level in the water treatment tank 118 (pollution sensor 126) under the control of the central monitoring control panel CC. However, the amount of water sprayed for outside air cleaning and the processing system for post-cleaning liquid are fully controlled.

As described above, the present invention provides a new method for controlling the intrusion of outside air pollution by controlling air processing in air polluted areas where there is a lot of ash fall, or in areas where outside air pollution is severe such as overcrowded cities or industrial areas. Therefore, depending on the type of building Vr- and the installation environment of the building, even if any one of 81 to S5 or two or more types are combined, this should be comprehensively managed. As a result, the initial objective has been achieved, and this will greatly contribute to the construction of modern factories and international-class hotels in areas where new development has been delayed due to air pollution.

[Brief explanation of the drawing]

FIG. 1 is a schematic vertical sectional view showing an example of a building to which the present invention is applied;
Figure 2 is a layout of control equipment in the building shown in Figure 1.
Figure 4 is an equipment layout diagram showing an embodiment of the outside air treatment equipment, Figure 4 is a schematic sectional view of the dust removal equipment, Figure 5 is a plan view of the building in which the entrance/exit air shower equipment is installed, and Figure 6 is the entrance/exit air shower equipment. Figure 7 is a plan view of the ceiling, Figure 8 is a front view, Figure 9 is a plan view of the parking facility, Figure 10 is the Air Java equipment in the military personnel department. 1. 11 is a longitudinal sectional view, FIG. 12 is a front view, and FIG. 16 is a plan view of the air processing device at the outlet.
FIG. 14 is a longitudinal sectional view, FIG. 15 is an equipment layout diagram showing a kitchen exhaust treatment system, and FIG. 16 is an equipment layout diagram showing a water quality treatment system in place of the cooling tower. 1...Air conditioner, 2...Outside air intake, 3...Exhaust port, 4...Exhaust fan, 6...Outside air purification device, 7...
・N-air pollution sensor, 45...pressure adjustment Danno (,9
, 47... Differential pressure detector, 55... Gent air flow blowing unit, 59...61... Slit, 71... Kitchen range, 72... Kitchen exhaust hood, 76... Ventilation wind Road, 78... Kitchen exhaust air duct, 110... Cooling tower, 118... Water quality treatment tank, 61-S5... Subsystem, 01-C5... Local control panel, Co... Center Monitoring control panel, U... Entrance/exit device. Figure 3 Figure 5 Figure 6 Figure 7 Figure 8 Figure 1? 1F■ Figure 9, Figure 12＼

Claims (1)

[Claims] When performing pressurized air conditioning, which controls the amount of outside air taken into the building for air conditioning and the amount of exhaust air forced out to the outside of the building so that the pressure inside the building is higher than the outside pressure, outside air near the building is used. The degree of contamination of the outside air is monitored, and when the outside air pollution reaches a predetermined level or higher, when the outside air pollution is below this level, the above-mentioned pressurization control is performed while reducing the amount of outside air taken in, and the contaminated outside air is kept in reserve. An air conditioning method for air-polluted areas characterized by treating the air before introducing it to an air conditioner.