JPH026973B2 - - Google Patents

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, and fine particles can affect remote areas. The buildings in this area are
This is particularly true for industrial facilities such as high-end product production and processing factories, pharmaceutical factories, and luxury hotels, where the damage caused by falling ash can be devastating. This type of invasion is not only caused by forced intake of air for air conditioning, but also by entering through gaps in various parts of the building, causing damage to the human body, etc.
It takes various forms, such as those that are attached to cars, luggage, etc. as they enter and exit. Once 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 processing facilities, it can affect the quality of the products produced. lower. In particular, plume fall is often accompanied by hydrogen sulfide and other sulfur-based corrosive substances, which can cause corrosion of various equipment, contact failures, poor insulation, bearing wear, rust, etc., and there are problems with deterioration when exposed to chemicals. wake up In addition, damage to air conditioning equipment occurs in the duct system, around the air conditioner, the heat source water system, around the cooling tower, and other areas. Although such damage may be temporary,
In some areas, it continues semi-permanently on an irregular basis, and when constructing an international-class hotel or a modern factory that requires high precision in these areas, drastic measures must be taken to prevent this ash fall. It becomes necessary. The present invention has been made for this purpose.

The present invention aims to solve this difficult problem by improving the mechanism of ash dust intrusion through air treatment, and is characterized by systematizing this so that it can be implemented in an energy-saving manner. 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 taken in is reduced according to the degree of outside air contamination compared to when it is below this level, and the pressurization control is performed. The reason is that the outside air is pre-treated before being led to the air conditioner.

Details of pressurization control, air treatment for ash dust prevention, and cleaning of contaminated air employed in the present invention will be explained in detail below with reference to the accompanying drawings.

Figure 1 shows underground garage G, basement 1st floor.
This is an example of applying the air conditioning method of the present invention to a hotel with DF1 and 7 floors above ground, where PT is the parking tower, A is the guest room, B is the hallway, C is the entrance, and D is the parking lot entrance. , H is the ramp for car entry and exit, H is the kitchen (kitchen for the restaurant upstairs), G is the underground machine room,
1 represents the rooftop machine room, and the figure shows a narrow cross-section of the building, which is actually a horizontally long hotel that extends from the front to the back of the page. Except for opening and closing the doors of the parking lot entrance (2) and entrance (C), the inside of the building is virtually cut off from the outside air except in special cases, and the air conditioner 1 in the underground machine room (G) is operated up to the second floor above ground.
Moreover, the air conditioner 1' in the ground machine room is in charge of air conditioning on the 3rd to 7th floors above ground. The air conditioning system uses the CAV system for the interior system, and the VAV system for the perimeter system.
method is adopted. 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 above-ground air conditioner 1' takes in outside air from the outside air intake 2' on the rooftop. The air is discharged from the upper exhaust port 3 and the rooftop exhaust port 3', respectively. 4,
4' is an 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, this includes outside exhaust treatment control, air shower control at entrances and exits, parking lot air supply control if there is a parking lot, kitchen exhaust control if there is a kitchen, and cooling tower control. Perform water quality management control at each location. In the building example shown in FIG. 1, each control system is generally shown in FIG.

In Figure 2, CC is the central monitoring control panel, C ₁ ~
C ₅ indicates the local monitoring control panel, and in the example shown, C ₁ indicates the outside exhaust treatment system S up to the second floor above ground.
1 control, C1 _' is the control of the outside exhaust treatment system S1' on the 3rd to 7th floors above ground, _C2 is the air shower S2 control at the entrance, _C2 ' is the air shower S2' control at the rooftop entrance,
C ₃ is the parking lot air shower control (C ₁ is in charge of controlling the parking lot air supply S3), C ₄ is the kitchen exhaust S
_C5 is in charge of controlling the cooling tower water quality pipe S5. C ₁ serves as a relay base for C ₂ and C ₃ , and C ₁ ′ also serves as a relay base for C ₂ ′, C ₄ , and C ₅ . C ₁ ′ is also in charge of elevator displacement control S 1 ″. Control of each subsystem S 1 to S 5 is handled by each local monitoring control panel C ₁ to _{C 5} , but Pressurization control is performed by a central monitoring control panel.
This central monitoring control panel uses a computer to do this.

Each of the subsystems S1 to S5 will be described in detail below. Figures 1 and 2 show examples of buildings that have all of S1 to S5, but some buildings may have S1 to S5.
It may contain any one or two or more of 1 to S5 singly or in combination.

Fig. 3 shows an outside air and exhaust gas processing device (corresponding to S1 in Fig. 2) applied to the pressurized air conditioning equipment of the present invention.
shows. 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 can be bypassed, and the outside air intake path and the air purification device 6 are connected based on the instruction signal of the outside air pollution sensor 7. The route to be passed through and the bypass path 8 are configured to be switchable, and the amount of exhaust gas discharged from the exhaust port 3 is controlled based on the instruction signal of the differential pressure detector 9 inside and outside the building so that the internal pressure of the building is higher than the external pressure. is configured to do so. Each of the outside air route, supply air and return air route, and exhaust route will be explained in detail step by step.The amount of air flowing through these three routes is controlled to an appropriate amount by the local control panel _C1 , and Control systems are now being managed comprehensively according to the degree of pollution in the outside air.

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 contamination is above a certain 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 filter. The electrostatic precipitator collects fine ash dust of 5μ or less that cannot be captured by a normal filter, and the activated carbon composite filter adsorbs SO _x and other gas components.
In addition, when the falling ash dust is heavy, it is passed through a settling and removing device as shown in FIG. This device vibrates an eliminator 12 and an after filter 13 with a vibrating device 14, sieves off the captured ash dust, receives it with a hopper 15, and transfers it to a chuck damper 16.
It is stored in a dust collection bag 17 according to the method. The outside air contamination sensor 7 monitors whether the outside air condition is in a normal range, a warning range, a dangerous range, etc., but when it enters the warning range, it controls the opening and closing of the dampers 10 and 11, and also controls the air purification device. 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 fan 6 increases. For example, in the normal range, the amount of oxygen supplemented by outside air is 30 (m ³ /Hr・
Outside air is brought in so that the air flow is approximately 15 to 25 ( ^m3 /Hr/person) in caution areas and 15 to 10 m3/Hr/person in dangerous areas.
The amount of outside air is controlled to a small amount so that the amount of oxygen supplemented by outside air is approximately (m ³ /Hr/person). However, the displacement is correspondingly (even more) reduced, as will be discussed later.

The air supply and return air paths consist of air supply ducts 21 from the air conditioner 1 to CAV units or VAV units installed in various parts of the building, and return air ducts 22 that return to the air conditioner 1 from suction ports in various parts of the building. . W indicates a humidifier. The return air duct 22 is a return air fan 23
On the discharge side, the flow path is branched into a flow path to the air conditioner 1 and a flow path to the exhaust port 3, and electromagnetic dampers 24 and 25 are interposed in each branch path. The opening degree of the electromagnetic dampers 24 and 25 is also adjusted by the control panel _C1 , and the amount of return air and the amount of exhaust air to the air conditioner 1 are adjusted appropriately.

The exhaust route connects all the exhaust air from various parts of the building to exhaust port 3.
This is done by means of an exhaust fan 4. If there is a parking lot, a portion of this exhaust gas is directed to the parking lot (this aspect will be discussed later).
The amount of exhaust air sent to the exhaust port 3 by the exhaust duct 26 is adjusted by an electromagnetic damper 27 interposed in the exhaust duct 26.

The control panel C ₁ controls the amount of air blown by the electromagnetic dampers 10 and 11 in the outdoor air path and the air supply fan 20 based on the instruction signals from the outdoor air pollution sensor 7 and the differential pressure detector 9, and at the same time controls the amount of air blown by the electromagnetic dampers 10, 11 and the air supply fan 20 in the outdoor air path. Controls the opening degree. This control is once analyzed by a computer at the central monitoring control panel CC, and the control operation is such that the internal pressure of the entire building is always higher than the external pressure, and as the degree of outside air contamination becomes severe, the amount of outside air intake is adjusted. At the same time, the control operation is such as to reduce the displacement in order to maintain pressurization.

In this way, the device shown in Figure 3 can pressurize the entire building, automatically dispose of ash, and supply the necessary and sufficient oxygen while preventing drafts from openings in various parts of the building. Furthermore, when the pollution is severe, the amount of air to be pretreated by the purifier 6 is reduced accordingly, so the capacity of this pretreatment device can be relatively small and the burden on equipment can be reduced.

Figures 5 to 8 show that when the pressurized air conditioning equipment of the present invention is applied, contamination intrudes into buildings with entrances and exits that are frequently accessed (e.g., hotel entrances, factory shipping entrances, etc.). 2 shows an air shower device (subsystem S2 described above) 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 entering and exiting, drafts may be caused by the exchange air current due to the temperature difference between the inside and outside of the building, and by agitation of people or objects entering and exiting the building. and pollutants enter the building. The devices shown in Figures 5-8 prevent this, and Figure 5 shows a first floor plan of a building (for example, a hotel) having a front entrance _EM and a back entrance _ES . Note that D in FIG. 5 is an ordinary entrance door, and an entrance/exit device U according to the present invention is attached alongside this ordinary entrance door D.

FIG. 6 is a plan cross section taken from the center of the entrance/exit device U, FIG. 7 is a plan cross section of the ceiling of the entrance/exit device U,
FIG. 8 is a front view of the entrance/exit device. As shown in these figures, this entrance/exit device includes an outer door 31
A passage space 33 is formed between the inner door 32 and the passage space 32, and a plurality of air outlets 35 for blowing out high-speed airflow into the passage space 33 are arranged on both side walls and the ceiling. An air circulation path is formed in which a blower 34 is interposed for sucking in air and sending it to each of the blow-off ports 35, and a filter unit 36 is installed in this air circulation path.

The outer door 31 and the inner door 32 are cross-shaped doors that rotate around a vertical axis, and the entrance/exit is the entire width of the cross-shaped door so that the passage of gas is reduced even if the rotational position of the outer door 31 and the inner door 32 are arbitrary. It is smaller than the width. A passage space 33 into which several people can enter is formed between the two revolving doors 31 and 32. This passage space 33 is located between both revolving doors 31 and 3.
2. It is formed by both side walls 37 and 38, a ceiling surface 39, and a floor surface 40 (Fig. 8), but the backs of both side walls 37 and 38 and the back of the ceiling surface 39 (behind the ceiling) communicate with each other. A cavity is formed. That is,
The passage space 33 is located between both revolving doors 31 and 32, and is defined by both side walls of a double wall structure and a ceiling surface and a floor surface with an attic space, and the double wall space and the attic space are Cavities are formed that communicate with each other. These cavities communicating with each other constitute a part of the air circulation path.

A large number of air outlets 35 are arranged on the side walls 37 and 38 and on the ceiling surface 39 and are directed toward the inside of the air passage 33, while an inlet 42 is provided below the side walls 37 and 38. Then, a blower 34 is installed so as to suck the sky in the attic space into the attic space.
34' is installed, and the discharge ports of the blowers 34, 34' are connected to filter units 36, 36'. These blowers 34, 34' and filter units 36, 36' are installed in the space above the ceiling where the revolving doors 31 and 32 are located, making effective use of the space above the ceiling and reducing the equipment capacity by using multiple units. It is being filter unit 36,
36' to each outlet 35 is an air supply duct 43.
The air is supplied by a filter unit 36, 36' and the air is injected from each outlet 35 as an air jet. 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 has the ability to trap coarse particles. and/or a multi-layered material with adsorption properties such as activated carbon that adsorbs harmful gases.

Therefore, the return air taken into the double wall space from the passage space 33 via the suction port 42 first has coarse particles and/or harmful gases removed by the prefilter 44, and then passes through the double wall space to the ceiling. The air enters the back space and enters each filter unit 36, 36' from the blower 34, 34', where fine particles are further captured and then supplied to each air outlet 35 via the air supply duct 43, and the air is supplied to each air outlet 35. This purified air is blown out from the outlet as an air jet. Due to this air jet, the human body or object in the passage space receives an air shower, and the pollutants adhering to it are blown away, and the contaminated air after this air shower is sucked into the suction port 42 again and circulated. This removes contaminants entrained by human bodies or objects entering the building via the passage space. Furthermore, if actions such as dusting off clothes or brushing shoes and the like are added in this passage space, the effect of preventing contamination will be further enhanced.

On the other hand, when this device U is driven, negative pressure increases in the double wall space and attic space, and positive pressure increases in the passageway space. Although the airflow may flow from the inside of the door 31 to the outside, the flow of outside air from the outside to the inside is suppressed, and a pressure adjustment damper 45 is installed between the double wall space or attic space and the building interior space. By installing a filter to absorb the pressure difference, the increase in negative pressure can be suppressed by using uncontaminated air. In this way, the ingress of contaminated outside air into the building through the doorways can also be effectively controlled. The pressure adjustment damper 45 is opened when the local control panel _C2 receives an instruction signal from the differential pressure gauge 47 (FIG. 8), and under instructions from the central monitoring control panel CC (FIG. 2). degree is adjusted. Starting and stopping of the drive of the device U is automated in response to the entry and exit of people or objects, and the central monitoring control panel CC constantly monitors its status and performs appropriate control according to the air condition.

In this way, even if the building has an entrance/exit where people or objects frequently enter and exit, the above-mentioned building pressurization control system effectively prevents contaminants entering the building from entering the building through this entrance/exit. is prevented.

Next, a case will be described in which the present invention is implemented for a building having a parking lot (subsystem S3 described above). Conventionally, in general buildings, car entrances and exits to parking lots were left open, and exhaust gas from within 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 once these pollutants are brought into the building, they often accumulate inside the building without being discharged outside the system. The present invention proposes a method for preventing the agitated pollutants brought in by vehicles from leaking into the building by guiding the exhaust air from the pressurized system into the building into the parking lot and using this exhaust air. . As shown in FIGS. 9 to 14, the system according to the present invention is such that a jet air blowing unit for conveying air is placed near the ceiling of the parking lot floor of a building, and this unit The air on this floor is unidirectionally conveyed towards the car entrance, the air conveyed to the car entrance is sucked, and it is slanted outward through air blowing nozzles or slits installed around the car entrance passage. The air is unique in that it is blown out in a manner that uses a portion of the exhaust air from the entire building as the air, and the amount of this exhaust air is controlled to conditions that allow pressurization control of the building's internal pressure. It is.

To explain specifically according to the embodiment shown in the drawings, FIG. 9 shows a method of conveying air according to the present invention on a parking floor in a building. An example is shown in which a shaft 52 is provided and air is supplied into the parking lot from an air supply port 54 by an air supply fan 53. Jet airflow blowing units 55a to 55e for conveying air are installed near the ceiling of this parking lot floor.

The units 55a to 55e are for blowing out a jet air stream to attract and convey ambient air near the jet air stream in the direction of the jet air stream. The structure of this unit itself is such that high-pressure air is supplied to the jet nozzle, and when using ambient air to form a jet air flow, the air taken in from this ambient air intake is made to high pressure by a fan, and then The jet nozzle is arranged in the exhaust duct of the high-pressure air source when air from a separate system (exhaust air) is used to form a jet air flow. In any case, these jet airflow blowing units 55a to 5
5e is placed near the ceiling of the parking lot floor, and the surrounding air carried by the jet airflow of the unit 55a is carried to the next unit 55c by the jet airflow of the next unit 55b, and so on. The arrangement is such that the conveyance of ambient air is unidirectional. The ambient air conveyed using this jet airflow as a conveying means is ultimately directed toward the vehicle entrance/exit 56.

Figures 10 to 12 show the details of the entrance to the parking lot. A car entering from outside A to indoor B receives an air shower at this entrance, and at the same time, contaminated air from outside flows into this entrance. This figure shows a structure that prevents people from entering the parking lot through the opening. That is, the air blow device installed at the car entrance includes an air intake port 57 for taking in air from the parking lot, and an air blower provided around the car entrance passage and oriented toward the outdoors A. The slits 59-61 and fans 58, 58' for forcefully feeding the air taken in from the air intake port 57 to the slits 59-61 are arranged as a unit. In the illustrated example, the air intake 57 is connected to the rearmost jet air blowing unit 55.
It is installed near the ceiling of indoor B so that the air conveyed by e can be taken in.
After high pressure is generated by fans 58 and 58' of the machine, it is supplied to slits 59a and 59b on both side walls, slit 60 on the ceiling, and slit 61 on the floor, and the entire circumference of the entrance passage is It is designed to tilt outward from the top and blow out high-speed air.
Therefore, when a car passes through this air blowing device, a high-speed oblique airflow is blown onto the entire surface of the car body from the direction in which the car enters, and pollutants adhering to the car body are blown away in the direction of outdoor A.

In the case of a parking lot with a separate exit section for cars, an air blowing device smaller in scale than the entrance section may be installed, as shown in Figs. 13 and 14. That is, the fan capacity can be made smaller than the examples shown in FIGS. 10 to 12, and the number of slits can also be reduced. It is sufficient to form an air barrier at this exit section to prevent contaminated outside air from entering the building through this vehicle exit section. Therefore, the slits on the floor and ceiling are omitted and only the slits 59 on both side walls are used. can create an outward blowing airflow.

In accordance with the present invention, a pressure difference may occur between indoor B and outdoor A due to the drive of the air blowing device.
are attached 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 a local control panel C ₃ , which is a central supervisory control panel.
It is under the supervision and command of the CC (Figure 2).

In this way, by combining the jet airflow blowing unit for air conveyance and the air blowing device, the parking lot can be ventilated while creating an air flow that is opposite to that of the conventional ventilation system for parking lots in buildings. In addition, it prevents outside air from entering through the car entrance in an air-polluted area, and pollutants adhering to the car are removed at the entrance, effectively preventing contamination inside the building via the parking lot.

Next, air processing (subsystem S4) when a relatively large-scale kitchen (for example, a hotel restaurant, a factory cafeteria, etc.) is present in a building will be described. If this kitchen exists, it will cause an imbalance when pressurizing the inside of the building, and if handled incorrectly, it can also cause a fire through the exhaust hood. Therefore, in the equipment of the present invention, for such a kitchen, the air processing system is configured independently, and this is controlled by the central monitoring and control panel CC, while fire elements can also be managed. This is what I did. As shown in FIG. 15, this kitchen equipment includes a kitchen exhaust hood 72, a kitchen exhaust air duct 78 that collects the exhaust air from the kitchen exhaust hood 72 separately from exhaust air from other rooms, and An oil mist separation device 80 is configured to spray water on the ventilation panel surface 79 in the exhaust air duct 78, and an oil mist separation device 80 is used to separate oil and fat from the oil emulsion wastewater generated in the oil mist separation device 80, and the oil and fat are separated from the oil mist separation device 80 and used as water sprinkling for the oil mist separation device 80 again. An emulsion-like oil and fat separation device 81 configured to be recycled, a light and/or heat sensor 82 attached to each of the kitchen exhaust hoods 72, and a fire extinguishing agent configured to spray the fire extinguishing agent toward the kitchen range 71. The amount of air discharged by the injection device 88 and the exhaust fan 83 of the kitchen exhaust air duct,
Drive of fire extinguisher injection device 82, oil mist separation device 8
A control device 84 that controls various operations such as water sprinkling at 0 and closing of the gas valve in the kitchen range by signals from the light and/or heat sensor 82.
(local control panel C ₄ ).

In this equipment, the kitchen exhaust hood 72 is not directly connected to the normal exhaust air duct 74 that connects the exhaust port 73 other than the kitchen, and the kitchen exhaust gas is processed by the oil mist separator 80 before being exhausted. Wind path 74
Connect to or drain out of the system independently. An exhaust fan 83 driven by a variable speed motor and an oil mist separation device 80 are attached to the kitchen exhaust air passage 78.

The oil mist separation device 80 includes a ventilation panel 79 arranged substantially perpendicular to the direction of travel of exhaust gas, a spray nozzle 85 arranged to spray water toward the surface of the ventilation panel 79, and an eliminator 86. It is housed in a casing, and a waste liquid outlet 87 is provided at the bottom of the casing. 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 discharged from the oil mist separator as oil emulsion waste water. The oil mist separator 80 not only removes oil mist from the kitchen exhaust gas, but also functions as a fire suppressor to prevent the spread of flames entering from the kitchen exhaust hood 72.

The oil emulsion wastewater discharged from the oil mist separator 80 is purified by the oil/fat separator 81 and then recycled for use as water sprinkling. This oil and fat separation device 81 divides the inside of the tank and attaches an aeration nozzle 90, and the air pump 91 blows fine bubbles into the liquid from this aeration nozzle, thereby removing the oil and fat from the flocs. This oil and fat floc is removed by a filter 92. The purified water is circulated to the spray nozzle 85 by a circulation pump 93. 94 is a water supply valve, 9
Reference numeral 5 indicates a liquid level detector, and reference numeral 96 indicates an overflow extraction pipe.

Drive of the circulation pump 93, water supply valve 94, and air supply pump 91, which are drive equipment in the oil mist separation device 80 and the oil and fat separation device 81, and control of the variable exhaust fan of the kitchen exhaust air duct 78 are performed by the exhaust hood. The signals from a light and/or heat sensor 82 attached to 72 are read by a controller 84, _C4 , for appropriate operation.

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 by sensing the temperature, a photoelectric switch that detects flames is attached to the kitchen exhaust hood, and is configured as a flame detector that sends a control signal when the flame continues for a certain period of time. be. Therefore, the sensor indicated by 82 in FIG. 15 actually consists of two devices, a temperature sensor and/or a light amount sensor, and the signals from this sensor are used to control the rotation speed of the exhaust fan 83. ing. Further, the rotational speed of the exhaust fan 83 can be controlled by a signal from a flame sensor 106 installed near each range. Note that 107 indicates an earthquake detector.

The extinguishing agent injection device 88 includes a extinguishing agent nozzle 100 for injecting extinguishing agent toward the range 71 from the vicinity of the kitchen exhaust hood 72, and this extinguishing agent nozzle 1.
It consists of various equipment for supplying extinguishing agent to the 00. This fire extinguishing equipment includes an air supply pump 101, a light water stock solution tank 102, a mixer 103, and a header 1.
04, consists of an electric CO ₂ cylinder 105, etc., and the extinguishing agent is sent from this extinguishing agent equipment to the extinguishing agent nozzle 100, depending on the signal from the sensor 82, when the temperature of the gas passing through the kitchen exhaust hood 72 increases. This is done when the flame is equal to or greater than a predetermined value and continues for a predetermined time, and the flame continues to be generated for a predetermined time or more.

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 gas under the direction of the central monitoring control panel CC to balance the internal pressure of the building. This subsystem S4 simultaneously establishes a management system for coordinating processing and preventing fire hazards.

In implementing the present invention, it is also important to take measures against water contamination in a cooling tower, which is one part of an air conditioning system, that is, cooling water contamination due to contact with contaminated outside air. The subsystem S5 for preventing contamination of the water system in the cooling tower will be specifically explained below using the embodiment shown in FIG. 16.

In FIG. 16, 110 is the main body of the cooling tower, and a hood 111 for preventing falling ash dust is provided around the outside air intake port, and an exhaust pipe 112 is provided bent in the opposite direction 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, 1 of the cooling water
Normally, the cooling tower is blown down from outside the system, but an amount of water corresponding to this blowdown water is used for outside air cleaning, and a ventilation panel 113 is installed at the outside air intake of the cooling tower. and piping 114 and nozzle 115 for guiding and sprinkling a portion of the blowdown water onto the surface of this ventilation panel 113.
is provided. A water collection tank 116 is installed below this ventilation panel 113, and the contaminated water that has collected pollutants in the air is collected in a water treatment tank 118 after first sedimenting and separating particulate matter in a liquid filter 117. It will be done. Here, the chemical injection device 119
The water that has been treated with chemicals and rendered harmless is recycled to the water sprinkler system of the cooling tower, and a portion is collected in a gray water tank and used as miscellaneous water. In the figure, 121 is a dissolved gas removal device, 122 is a refrigerator condenser, 123 is a cooling water pump, and 124 is a local control panel _C5 . This local control panel 124 is under the control of the central supervisory control panel CC.
Degree of water pollution in the cooling tower (pollution sensor 125),
While monitoring the degree of water pollution in the water treatment tank 118 (contamination sensor 126), the amount of water sprayed for outside air cleaning,
The processing system for the post-washing liquid is 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 areas with severe outside air pollution such as overcrowded cities and industrial areas. Depending on the type of building and the installation environment of that building, S
Even if any one of 1 to S5 or two or more of them are combined, the initial objective will be achieved by comprehensively managing them. Even in backward areas, it can greatly contribute to the construction of modern factories and international-class hotels.

[Brief explanation of drawings]

Fig. 1 is a schematic vertical cross-sectional view showing an example of a building to which the present invention is applied, Fig. 2 is a layout diagram of control equipment in the building shown in Fig. 1, and Fig. 3 is an equipment layout diagram showing an example of an outside air processing device. , Fig. 4 is a schematic sectional view of the dust removal device, Fig. 5 is a schematic cross-sectional view of the dust removal device;
The figure is a plan view of the building in which the entrance/exit air shower device is installed, Figure 6 is a plan cross-sectional view of the center of the entrance/exit air shower device, Figure 7 is a plan cross-sectional view of the ceiling, and Figure 8
The figures are the same front view, Fig. 9 is a plan view showing the parking facility, Fig. 10 is a plan view of the air shower device at the car entrance, Fig. 11 is the same vertical sectional view, and Fig. 12 is the same front view. Fig. 13 is a plan view of the air treatment device at the vehicle exit, Fig. 14 is also a longitudinal sectional view, and
FIG. 5 is an equipment layout diagram showing a treatment system for kitchen exhaust gas, and FIG. 16 is an equipment layout diagram showing a water quality treatment system around the cooling tower. 1...Air conditioner, 2...Outside air intake, 3...
Exhaust port, 4...Exhaust fan, 6...Outside air purification device, 7
...Outside air pollution sensor, 45...Pressure adjustment damper, 9, 47...Differential pressure detector, 55...Jet air flow blowing unit, 59-61...Slit, 7
1... Kitchen range, 72... Kitchen exhaust hood, 7
6... Ventilation air duct, 78... Kitchen exhaust air duct, 11
0...Cooling tower, 118...Water quality treatment tank, S1-S
5...Subsystem, _C1 to _C5 ...Local control panel, CC...Central monitoring control panel, U...Entrance/exit device.

Claims (1)

[Claims] 1 In pressurized air-conditioned buildings, the amount of outside air taken into the building for air conditioning and the amount of exhaust air forcibly discharged to the outside of the building are controlled to make the building's internal pressure higher than the external pressure. An air purification device that purifies the outside air that enters according to the degree of contamination is installed in the outside air path, and a high-speed airflow of circulating air is installed in the passage space formed between the outside door and the inside door at the entrance and exit of people or objects. Pressurized air conditioning building equipment in air polluted areas equipped with air shower equipment.