JPH033895Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a heating device used in greenhouses, agricultural greenhouses, etc.

(Prior Art) Conventionally, in order to save energy, there is a heating system that uses a hot air heater and a latent heat storage device in combination. The hot air heater uses kerosene (petroleum) as fuel, and the latent heat storage device stores solar heat, etc., with the purpose of saving oil usage.

An example of such a conventional heating system will be explained based on FIG. 3. A conventional heating system includes an independent latent heat storage device 1 and a hot air heater 2, which are connected to independent ducts 3 and 4, respectively. The ducts 3 and 4 serve to guide warm air taken out from the latent heat storage device 1 and the hot air heater 2 to a greenhouse or the like, respectively. Devices for sending hot air into the respective ducts 3 and 4 generally include electric fans 5 and 6 built into the latent heat storage device 1 and the hot air heater 2, respectively.

Since the latent heat storage device 1 and the hot air heater 2 are used selectively, a common control device 7 is provided for them. When a sufficient amount of heat exists in the latent heat storage device 1, the control device 7 causes only that heat to be used for heating, and when the amount of heat in the latent heat storage device 1 is insufficient, stops taking out hot air from the latent heat storage device 1. Then, only the hot air heater 2 is operated. Therefore, the amount of oil used by the hot air heater 2 is saved.

(Problems to be solved by the invention) The above-mentioned conventional heating system saves oil, but requires two systems of indoor ventilation ducts 3 and 4, resulting in high costs and requiring only one piping space. Twice as much as in the case of a system is required. Furthermore, if the indoor air distribution ducts are combined into one system and shared, it will be necessary to replace the ducts.

The present invention was made to solve these conventional problems, and its purpose is to provide an economical heating system that can save oil and requires less piping system and piping space. .

(Means for solving the problem) A heating device according to the present invention includes at least one latent heat storage device, a hot air heater, a plurality of ducts connected to each of these, and a switching chamber connected to these ducts, a control device for controlling the extraction of hot air from the latent heat storage device and the hot air heater to the duct, the switching chamber having one outlet duct for sending out the hot air introduced from each of the ducts; , a valve body for blocking and communicating between the outlet duct and each of the ducts, and when the valve body blocks one of the duct leading from the latent heat storage device and the duct leading from the hot air heater. It is characterized in that the switching operation is performed so as to connect one to the other.

(Function) The ducts from the latent heat storage device and the hot air heater are combined into one outlet duct of the switching chamber, resulting in one piping system. When the operation of the latent heat storage device and the hot air heater is switched by the control device, the valve body in the switching chamber shuts off the ducts that are not used, and connects the ducts that are used to the outlet duct.

(Example) The present invention will be described below based on the example shown in FIGS. 1 and 2. Note that the same reference numerals will be used to describe the same parts as in the prior art.

FIG. 1 shows an embodiment of the present invention, and this heating device has a latent heat storage device 1, a hot air heater 2, and guides warm air taken out from each of the latent heat storage device 1 and the hot air heater 2. A plurality of ducts 10 and 11, a switching chamber 12 to which these ducts 10 and 11 are connected, and a control device 7 that controls the extraction of hot air from the latent heat storage device 1 and the hot air heater 2 to the ducts 10 and 11. It is equipped with

In order to extract hot air into the ducts 10 and 11, the latent heat storage device 1 and the hot air heater 2 include an electric fan 5,
6 is provided.

The switching chamber 12 has one outlet duct 13 for discharging the hot air introduced from each duct 10,11. The outlet duct 13 is connected to a distributor 14, for example, and delivers hot air to a greenhouse or the like via a flexible duct connected to the distributor 14.

The switching chamber 12 also has a valve body 15 therein.
have. The valve body 15 serves to isolate and communicate between the outlet duct 13 and each duct 10, 11. Further, the valve body 15 performs a switching operation such that when one of the ducts 11 led from the latent heat storage device 1 is shut off, the other is opened. and is done automatically. That is, the valve body 15 is a door-shaped opening/closing plate in this embodiment, and is rotated by the wind pressure when hot air is introduced from the duct 10, and is rotated by the wind pressure to close the duct 11 as shown by the broken line.
cut off. Conversely, when hot air is introduced from the duct 11, the duct 10 is shut off as shown by the solid line position. The hot air from the duct 10 or 11 is therefore always guided to the outlet duct 13.

Note that the valve body may be manually operated, and is not limited to one that is automatically rotated by the wind pressure of the hot air introduced as described above.

In the heating device configured as described above, the control device 7, as in the conventional case, stops the hot air heater 2 to use only the latent heat storage device 1 when a sufficient amount of heat exists in the latent heat storage device 1 to save energy. Measure oil.

At that time, the valve body 15 automatically closes the duct 11. In the opposite case, that is, when the amount of heat in the latent heat storage device 1 is insufficient, this device is stopped and the warm air heater 2 is activated. As a result, the valve body 15 closes the duct 10 inversely. Therefore, using only one outlet duct 13, either the hot air from the latent heat storage device 1 or the warm air heater 2 can be guided to a greenhouse or the like, and the duct 1 for the outlet duct 13
There is no need to perform work to replace parts 0 and 11. Therefore, piping (duct) systems and piping space are also saved.

FIG. 2 shows another embodiment of the present invention, in which a plurality of latent heat storage devices 1 are used, and a duct 10
is branched into a plurality of parts so as to be commonly connected to each latent heat storage device 1. In this case as well, the same effects as in the embodiment shown in FIG. 1 can be obtained.

(Effect of the invention) As explained above, according to the invention, the ducts from the latent heat storage device and the hot air heater are combined into one outlet duct via the switching chamber, and the switching chamber has the respective ducts and the outlet. Since the configuration includes a valve body that selectively blocks and communicates between the ducts, it is possible to save oil in the hot air heater, and also to reduce the number of ducts (pipes) and piping space. .

[Brief explanation of drawings]

FIG. 1 is a schematic illustration of a heating device according to one embodiment of the present invention, FIG. 2 is a schematic illustration of another embodiment, and FIG. 3 is a schematic illustration of a conventional heating system. 1... Latent heat storage device, 2... Warm air heater, 5, 6
...Electric fan, 7...Control device, 10, 11...
...Duct, 12...Switching chamber, 13...
Outlet duct, 15...valve body.

Claims (1)

[Scope of utility model registration request] at least one latent heat storage device, a hot air heater, and a plurality of ducts each guiding hot air taken out from each of the latent heat storage device and the hot air heating device;
The switching chamber includes a switching chamber to which these ducts are connected, and a control device that controls taking out of the hot air from the duct from the latent heat storage device and the hot air heater, and the switching chamber controls the hot air introduced from each of the ducts. and a valve body for shutting off and communicating between the outlet duct and each of the ducts, and this valve body has one outlet duct for sending out the latent heat heat storage and a valve body for shutting off and communicating between the outlet duct and each of the ducts, and the valve body is for connecting the duct leading from the latent heat storage device and the hot air heater. A heating device characterized in that when one of the ducts is shut off, the other duct is opened.