JP3275094B2 - Small animal ward - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ward (cage) for accommodating small animals such as dogs and cats under treatment.

[0002]

2. Description of the Related Art This kind of sick house accommodates the above-mentioned small animals that have been weakened by illness and is cured, so that the atmosphere in the house, that is, the temperature, humidity, oxygen concentration and the like can be easily controlled. .

[0003] Fig. 1 is an explanatory view schematically showing a conventional ward. An outlet 3 and a suction port 4 are provided on one side wall (back wall) of the ward 1 provided with an opening / closing door 2 on a front surface. An outlet 7 and a suction port 8 of an air conditioner 6 provided with both ports 3, 4 provided separately from the ward 1 through ducts 5a, 5b.
It is connected to the. The air conditioner 6 includes a heating heater 9, a cooling heat exchanger 10, a blower 11, a germicidal lamp 12, a humidifier, a dehumidifier, and the like (not shown). The air-conditioned and sterilized air flows into the ward 1 through the outlet 3 through the duct 5a, and the air in the ward 1 is returned to the air conditioner 6 through the duct 5b through the inlet 4. Has become. A predetermined amount of conditioned oxygen is supplied from the oxygen supply device 13 into the ward 1.

[0004]

In the above-mentioned conventional hospital 1, the ducts 5a and 5a are provided in the outlet 3 and the inlet 4, respectively.
The air conditioner 6 is connected via the line b. Because of the resistance of the duct, a fan having a large output must be used.

[0005] Further, by using a blower having a large output and using a duct as described above, the air pressure flowing into the hospital becomes strong, and the inside of the hospital becomes a positive pressure against the outside air. May leak to the outside through a slight gap in the seal portion of the closed door 2. For this reason, when oxygen is to be supplied to the house and the oxygen concentration in the house is to be set higher than the content in the atmosphere (21%), the oxygen supply amount must be increased in accordance with the above-mentioned air leakage amount. However, there is a problem that oxygen consumption increases. The air leaked from the ward is supplied from the outside air inlet 14 provided in the air conditioner 6.

SUMMARY OF THE INVENTION The present invention has been made in view of the above, and provides a small animal ward which can prevent a large positive pressure inside the ward and reduce oxygen consumption due to air leakage. It is intended for.

[0007]

Means for Solving the Problems To achieve the above object, the invention according to the present invention is directed to a small animal ward in which air is internally air-conditioned by an air conditioner. Each of the suction port and the discharge port is opened in the hospital ward, and the cooling device is provided outside the hospital ward, and each of the suction port and the discharge port is connected to the hospital ward via an on-off valve. Has become.

In the small animal ward, the cooling device is provided with a bypass passage for circulating a part of the blown air to the suction side.

[0009]

[Operation] During heating of a hospital ward, only the heating device provided in the hospital ward is operated. At this time, the cooling device is stopped, and the suction port and the outlet port opened to the hospital are closed by the on-off valve, and the air in the hospital is circulated in the hospital by the heating device.

At the time of cooling, the above-mentioned on-off valve is opened to operate the cooling device, and the air in the ward is circulated by the cooling device. At this time, a part of the blowing air from the cooling device is circulated in the cooling device through the bypass passage, and another part of the blowing air is blown into the hospital ward. The air circulated in the cooling device is repeatedly cooled to a low temperature,
A part of this is appropriately blown into the ward from the outlet communicating with the ward.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIG. In the figure, reference numeral 21 denotes a small animal ward (cage) provided with an opening / closing door 22 on the front side, and 23 denotes a heating device provided in the ward 21. The heating device 23 has a blower 24 such as a sirocco fan, a heating heater 25 and a germicidal lamp 26, which are housed in a box 27 and provided along the upper wall of the hospital ward 21. The inlet 28 and the outlet 29 of the heating device 23 are opened directly in the hospital ward 21. The opening area of each of the ports 28 and 29 is set to be substantially the entire width of the box 27 of the heating device 23.

In the figure, reference numeral 30 denotes a cooling device. The cooling device 30 has a structure different from that of the heating device 23 and is provided outside the hospital ward 21. The cooling device 30 has a blower 31 such as a sirocco fan and a cooling heat exchanger 32, which are housed in a box 33 and provided outside the back wall of the hospital ward 21. This cooling device 30 has two suction ports 34 a and 34 on the upstream side of the flow of wind by the blower 31.
b, and two outlets 35 on the downstream side.
a and 35b are provided. And one suction port 34
a and one outlet 35a are connected to the inlet 36a and outlet 36b provided on the back wall of the hospital ward 21. The other inlet 34b and the other outlet 35b are connected to each other.
Are communicated by a bypass passage 37. The above ward 21
Inlet 34a and outlet 35a connected to
Electromagnetic on-off valves 38a and 38b are provided at the connection to the ward 21.

An oxygen supply pipe 39 connected to an oxygen supply device is connected to one side wall of the hospital ward 21. In addition, the intake port 4 made openable and closable by the on-off valve 40 in the bypass passage 37.
1 is provided. A temperature sensor 42 is provided in the ward 21. Although not shown, an oxygen concentration measurement sensor is provided in the ward 21.

In the above configuration, when the temperature in the ward 21 is lower than the set value, the heating device 23 is operated. At this time, the electromagnetic switching valves 38a and 38b are closed and the cooling device 30 is stopped. In this state, the air in the ward 21 is sucked in from the suction port 28 of the heating device 23, heated by the heating heater 25, and blown out into the ward 21 from the outlet 29 to heat the inside of the ward 21. At this time, since the suction port 28 and the outlet port 29 of the heating device 23 have a sufficiently large opening area in the heating device 23, the air passing therethrough is not restricted, and is slowly sucked in the hospital room 1 and Be blown out. The air in the ward 1 is sterilized by the germicidal lamp 26 while passing through the heating device 23. Also, at this time, the ward 1
A predetermined amount of oxygen is supplied from an oxygen supply pipe 39 connected to an oxygen supply device in order to increase the oxygen concentration in the inside.

When the temperature in the hospital room 1 is higher than the set value, the solenoid valves 38a and 38b are opened, the heating device 23 is stopped (or the operation is continued), and the cooling device 30 is operated.
Operate. In this state, the air in the ward 21 is sucked from the suction port 34a, is cooled by the cooling device 30, is blown into the ward 21 again from the outlet 35b, and the air in the ward 21 is cooled.

At this time, in the cooling device 30, after being cooled by the cooling heat exchanger 32, a part of the wind blown by the blower 31 is blown into the hospital ward 21 and another part is bypassed. It is circulated through the cooling device 30 through 37. For this reason, the amount of air blown from the cooling device 30 into the ward 21 is smaller than the amount of air blown by the blower 31, and is blown into the ward 21 slowly with respect to the amount of air blown by the blower 31.
Further, since the air circulated in the cooling device 30 is repeatedly cooled, the temperature thereof becomes low, and a part of the air flows into the hospital ward 21, and a large cooling effect can be obtained with a small air volume.

The above-described heating and cooling operations are automatically performed by a control device (not shown) based on the set temperature in the hospital ward 21.

When accommodating an infectious patient,
By closing the electromagnetic switching valve 35a on the suction side of the cooling device 30, it is possible to prevent contaminated air from entering the circuit of the cooling device 30 that is difficult to disinfect. At this time, the air is sucked into the cooling device 30 through the air inlet 41.

In the above embodiment, one hospital 21
Although the example in which one cooling device 30 is provided for the cooling device 30 is shown, the capacity of the cooling device 30 is increased, and one cooling device 30 is provided.
The plurality of hospitals 21 may be cooled at. In this case, the suction port 34a and the outlet 35a are connected to each hospital 21 via a branch pipe. Also in this case, the solenoid valves 38a and 38b are interposed in each connection passage.

[0020]

According to the present invention, since air in the ward 1 is circulated only through the heating device during heating, this circulation path is short, and air having a high oxygen concentration in the ward leaks in the above-mentioned circulation path. Therefore, the amount of oxygen consumed in the ward during the heating can be reduced. In addition, since the circulation of air during this heating is performed according to the amount of air blown out only by the heating device, the magnitude of the positive pressure in the ward due to the operation of the heating device becomes small, and the inside of the ward becomes a positive pressure. Oxygen leakage from the hospital due to the above can be reduced.

On the other hand, the amount of cold air blown from the cooling device into the ward at the time of cooling becomes a part of the amount of air blown as the cooling device, so that the pressure of the cool air blown from the cooling device is reduced. The magnitude of the positive pressure can be reduced.

The air blown into the ward is appropriately mixed with low-temperature air circulating in the cooling device, so that the air blown into the ward can be efficiently cooled with a small amount. it can.

[Brief description of the drawings]

FIG. 1 is a schematic structural explanatory view showing a conventional example.

FIG. 2 is a configuration explanatory view showing an embodiment of the present invention.

FIG. 3 is a partially cutaway front view showing the embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Hospital ward, 2 ... Opening / closing door, 3 ... Outlet, 4 ... Inlet, 5a, 5b ... Duct, 6 ... Air conditioner, 7 ... Outlet, 8 ... Suction port, 9 ... Heating heater, 10 ... Heat for cooling Exchanger, 11: blower, 12: germicidal lamp, 13: oxygen supply device, 21: sickhouse, 22: openable door, 23: heating device, 2
4, 31: blower, 25: heating heater, 26: germicidal lamp,
27, 33: box, 28: suction port, 29: outlet, 30: cooling device, 32: cooling heat exchanger, 34a,
34b, 36a ... Suction port, 35a, 35b, 36b
... Outlet, 37 ... Bypass passage, 38a, 38b ...
Electromagnetic on-off valve, 39 ... Oxygen supply pipe, 40 ... On-off valve, 41 ...
Inlet 42, temperature sensor.

Claims (2)

(57) [Claims] In a small animal ward where air conditioning is performed by an air conditioner, a heating device is provided in the ward, and a suction port and an outlet of the heating device are provided in the ward, and the cooling device is provided. A small animal ward, wherein the suction port and the outlet are connected to the inside of the ward through an open / close valve. 2. The small animal ward according to claim 1, wherein the cooling device is provided with a bypass passage for circulating a part of the blown air to a suction side.