JPH085130A - Disaster preventing type air-conditioning system - Google Patents

Abstract

PURPOSE:To provide a system which is arranged in a room wherein a large number of people gather, normally feeds a comfortable cool/warm air, instantly discharges smoke to the outside at the time of a fire, and at the same time, prevents an oxygen deficient condition in the room from generating. CONSTITUTION:In a machine, a fan 5 to pressurize supply air into a room, and a fan 10 for smoke-discharging, which draws in return air from the room as well are arranged. Then, on a suction passage A of the fan 5, a cold/hot water coil 6, a humidifier and a filter are arranged. Then, a discharge passage of the fan 10 is branched to provide a smoke-discharging passage D and a circulation passage B. Then, one end of the circulation passage B is connected to a point wherein an outside air intake passage C and an air passage A are connected. Dampers (a), (b), (c), (d), (e) are respectively arranged at an outlet of the fan 5, inlet of the fan 10, passage B, passage C and passage D. At the time of a fire, (a), (c), (d) are closed, and (b), (e) are opened, and the fan 10 is operated to discharge smoke to the outside of the room. In addition, in response to the concentration of the smoke, the damper (c) is closed, and all other dampers (a), (b), (d), (e) are opened, and the outside air is introduced by the operation of the pressurizing fan 5, and at the same time, the smoke in the room is powerfully forced out to a smoke-discharging port, and an oxygen deficiency in the room is prevented from generating.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is installed in a room where a large number of people gather, such as in a hotel or a department store, and normally supplies comfortable cold and warm air to the room to prevent smoke generated during a sudden fire or the like. The present invention relates to a disaster-prevention type air-conditioning system which immediately discharges to the outside to suppress smoke accidents.

[0002]

2. Description of the Related Art Generally, it is well known that hotels, department stores, halls, etc., where a large number of people gather as described above, are provided with various blame facilities in the event of an accident such as a fire. Naturally, it is also known that a considerable concentration of smoke is generated with the occurrence of the above-mentioned fire, which is a serious cause of loss of many human lives. In view of such circumstances, so-called smoke exhaust devices have been developed for the purpose of exhausting the above-mentioned smoke while simultaneously controlling the air conditioning in the room, but most of them are configured separately from indoor cooling and heating devices. Therefore, it becomes very bulky, and especially in a small space such as an installation space, the size becomes unavoidably small, and there is a drawback that a sufficient function cannot be expected due to this. Moreover, since most of the air blown into the room was introduced through the duct by suction, outside air was distorted between the rooms due to the expansion of outside air, and a comfortable and ideal distribution of outside air could not be obtained. The inventor first developed an indoor return air, exhaust, and smoke exhaust device (Japanese Patent Application No. 63-114428) for the purpose of solving the above-mentioned drawbacks all at once.
Since both the return air and exhaust air blower and the air supply air blower both of which are installed in such a device use a normal air blower, for example, the amount of air blown out in the room depends on the air environment in the room. When the return air flow rate is large compared to the small air flow rate, the difference in the air flow rate causes people to have difficulty in breathing, often causing a choking phenomenon, that is, an oxygen deficient body, which is a serious problem. It turned out to be flawed.

[0003]

SUMMARY OF THE INVENTION The present invention is intended to fundamentally solve the above-mentioned problems, and a smoke exhaust mechanism is integrally incorporated in a conventionally used cooling / heating air conditioner. In particular, by using a pressure blower for the above blower, it is possible to expect a healthy indoor environment by balancing the air volume in the room, and to form a compact overall shape to immediately perform normal operation in an emergency. Its main purpose is to switch to the smoke removal function, and to prevent the oxygen deficient body from being difficult to minimize especially in the event of a smoke damage disaster.

[0004]

SUMMARY OF THE INVENTION The present invention was developed in view of the above-mentioned object, and its outline as a system is as follows: a blower port, an outside air inlet port, and a return air inlet port An opening is provided, and a heat exchange blow passage A that communicates the outside air introduction port and the blow port is formed in the machine, and a return air blow passage B that connects the return air port and the blow port is formed adjacent to the blow passage A. In the heat exchange blast passage A, cold, hot water coil,
A mechanical device such as a humidifier, a filter, and a pressure fan are arranged, and an air flow switching damper c is installed between the heat exchange air passage A and the return air air passage B so that both air passages A and B can be switched. The return air blowing passage B and the smoke exhaust opening that is opened on one side of the aircraft are communicated with each other through the smoke exhaust passage D, and each smoke exhaust switching damper d is installed between the return air blowing passage B and the smoke exhaust passage D.
In the event of an emergency, only the damper c is closed so that the return air and smoke exhausting fan is driven to supply the outside air and at the same time exhaust indoor smoke through the smoke exhaust to the outside.

[0005]

The operation will now be described. In the normal operation, the air in the room is returned by opening the airflow switching dampers a, b and c along with the operation of the pressure fan 5 as shown in FIG. The heat is exchanged from the air outlet 4 through the heat exchange ventilation passage A to an appropriate temperature by the cold and hot water coils 6 in the heat exchange chamber,
The cold and warm air is supplied from the blower port 2 through the duct to the inside and outside of the room at a predetermined temperature. Further, when it is necessary to take in fresh outside air during the above operation, by opening the outside air introduction damper d, the fresh outside air is cooled and warmed together with the room return air through the heat exchange blow passage A from the outside air introduction port 3. It can be delivered indoors. In particular, since the pressurizing fan 5 is used as the blower on the return air side in this invention, the air blown into the room becomes forced air, so that balanced air-conditioning expansion can be obtained in a wide range of the room. When a fire occurs in such a state, as shown in FIG. 2, the smoke detector switches the smoke exhaust switching damper e to open automatically, and at the same time, the air flow switching damper c and the outside air introducing damper d close to return air and exhaust. By driving the smoke fan 10, indoor smoke from the return air port 4 is guided to the duct through the smoke exhaust passage D and the smoke exhaust port 9 and discharged to the outside.

In particular, in the present invention, the exhaust gas concentration and the oxygen deficient body may occur in the room. In such a situation, as shown in FIG. 2, the heat exchange air blowing passage A and the return air blowing passage B return air. By closing only the wind flow switching damper c on the side and rotating the pressurizing fan 5 and the return air / smoke exhaust fan 10 at the same time, the pressurizing operation of the pressurizing fan 5 makes the smoke filled in the room stronger. Not only is it sent to the smoke exhaust port 9 by pressure, but outside air is also introduced, so oxygen deficiency is prevented in advance, and it is possible to easily and reliably prevent this even if the smoke has a high concentration. It can be discharged.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a disaster prevention type air conditioning system according to the present invention will be described below with reference to the drawings. As an air conditioner used in the above system, a ventilation port 2, an outside air introduction port 3, a return air port 4 and a smoke exhaust port are provided at the upper part. The air exchange port 4 and the air blowing port 2 are communicated with each other in the airframe 1 having the respective opening portions 9 to open the heat exchange air blowing passage A, the return air blowing passage B, and the outside air introducing port. 3 and the return air blow passage B are communicated with each other to form an outside air blow passage C side by side, and heat is exchanged between the both side blow passages A and B.
A pressure fan 5 for introducing outside air is installed. In the heat exchange air passage A, necessary mechanical devices such as a cooling coil, a hot water coil 6, a humidifier 7, a main filter, and a prefilter 8 are arranged, and a sound deadening mechanism having an appropriate shape is arranged near the air outlet 2. An airflow switching damper a is provided in the heat exchange airflow passage A, an airflow switching damper b is provided in the return air airflow passage B, and an airflow switching damper c is provided between the return air airflow passage B and the outside air introduction passage C.
In the outside air introduction passage C, each outside air introduction damper d is installed. Further, according to the present invention, a smoke exhaust passage 9 is formed in one of the fuselage 1 and the return air outlet 4 are communicated with each other to form a smoke exhaust passage D, and a return air and smoke exhaust fan D is provided in the smoke exhaust passage D. 10 is installed, and the smoke exhaust switching damper e is opened and closed in the smoke exhaust passage D. It should be noted that the wind flow switching dampers a to b
It is needless to say that the indoor temperature is automatically set by connecting to the indoor cooling and warm temperature sensor to obtain a comfortable temperature environment in the room at all times. It is configured to be linked with a smoke sensor installed in advance in the room, automatically open the smoke exhaust passage D in an emergency, and at the same time, input the smoke exhaust blower 10 to discharge the smoke generated in the room to the outside. .

Further, in the present invention, a booster fan is used as the return air / smoke exhaust fan 10 and a pressurizing fan 5 is used.
It is also a consideration to help the performance of the above more effectively.

Further, the present invention has a cold and hot water coil 6,
Heat exchange ventilation passage A in which mechanical devices such as the filter 8 can be arranged
A heat exchange side air conditioner body having a return air blowing passage B and an outside air introducing passage C, and a smoke exhaust side body formed by forming a smoke exhaust passage D in which the return air / smoke exhaust fan 10 is installed in the aircraft are required. In this case, by being configured so as to be separably connectable, it can be conveniently used, and also various works such as transportation and assembly, and maintenance work can be easily and surely performed. Although omitted in the above description, each of the blower opening 2, the outside air introduction opening 3, the return air opening 4, and the smoke exhaust opening 9 formed on the upper portion of the machine body 1 is connected by ducts to a predetermined suction, It is configured to direct air to the outlet.

[0010]

As described above, in the air-conditioning system according to the present invention, the pressurizing fan 5 and the return air / smoke exhausting fan 10 are installed in the airframe for indoor blowing, and the smoke exhausting mechanism is also integrated. It is possible to demand comfortable cold and warm air conditioning in the room under normal conditions since it is connected to the air conditioner.However, in the event of an emergency accident such as a fire, the smoke exhaust mechanism immediately operates and It has the effect of minimizing the accidents due to smoke damage by reliably removing the filled smoke from the outdoors. Particularly, in the present invention, since the pressurizing fan 5 is used for blowing the air inside the room, it is possible to completely solve the imbalance of the air conditioning in the room. It also has a remarkable effect that it can be more strongly released to the outdoors, and at the same time, it can prevent the acid deficient body from occurring.

According to the second aspect of the present invention, it is also expected that the use of the booster fan 5 in combination with the return air / smoke exhaust fan 10 can more certainly assist the smoke exhaust function of the pressurizing fan 5. You can ask for it.

Further, as described in claim 3, the heat exchange side air conditioner main body of the air conditioning department and the smoke exhaust side machine body provided with the smoke exhausting mechanism can be configured so as to be separably connectable as required, so that any bulkiness can be achieved. Even if this air conditioner is used, various work such as connection can be easily and integrally performed on site, and it is also possible to immediately connect the smoke exhaust mechanism to the air conditioner currently in use, which is very economical. In addition, it also has a great effect that it can be formed compactly so that the entire shape of the airframe can be achieved.

[Brief description of drawings]

FIG. 1 is an overall system view of a disaster prevention air conditioning system according to the present invention during normal operation,

[FIG. 2] Same as above, showing a working state diagram of the system in the event of an emergency,

FIG. 3 is a front view schematically showing the internal mechanism of the air conditioner according to one embodiment of the present invention.

[Explanation of symbols]

 A Heat exchange ventilation passage B Return air ventilation passage C Outside air introduction passage D Smoke exhaust passage 1 Aircraft 5 Pressurized fan 6 Cooling and hot water coil 10 Return air and smoke exhaust fan a Exhaust port damper b Outside air port damper c Return air switching damper d Outside air introduction damper e Smoke switching damper

Claims (3)

[Claims] 1. A heat exchange air passage A and a return air air passage B for the intake and exhaust air outlets of the air outlet and the return air outlet, and an outside air inlet and the return air air passage B for the outside air in parallel with the return air air passage B. In the introduction passage C, the return air blowing passage B and the smoke exhaust port are connected and communicated with each other through the smoke exhaust passage D, and the cooling, hot water coil, humidifier, filter, and heating unit are provided in the heat exchange blowing passage A. A pressure fan is provided between each of the return air blowing passage B and the smoke exhaust passage D, and a fan for returning air and smoke is provided. Further, air flow switching dampers a and b are provided in the heat exchange blow passage A and the return air blow passage B. , C, an outside air introduction damper d in the outside air introduction passage C, and each damper of a smoke emission switching damper e in the smoke exhaust passage D so as to be openable and closable, and the dampers a, c, d are closed when an emergency occurs. , B and the smoke exhaust switching damper e are opened to exhaust the indoor smoke by operating the return air and smoke exhaust fan. The air is discharged from the passage D to the outside through the smoke exhaust port, but the damper c is closed according to the concentration of the smoke and all the other dampers a, b, d and e are closed, and the outside air is removed by the operation of the pressure fan. At the same time as the introduction, a disaster prevention air conditioning system that more strongly presses the smoke in the room to the smoke exhaust port to prevent oxygen deficiency in the room. 2. The air conditioning system according to claim 1, wherein a pressurizing fan is installed in the return air blowing passage B, and a return air and smoke exhausting fan is installed in the return air blowing passage B as a booster fan. Disaster prevention air conditioning system characterized by 3. The air conditioner according to claim 1,
A heat exchange side air conditioner main body having a heat exchange ventilation passage A and a return air ventilation passage B, and a smoke exhaust side body formed by forming a smoke exhaust fan and a smoke exhaust passage C in the machine can be freely connected and connected. Disaster prevention air conditioning system.