JPH0711346B2 - Air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention integrally forms an outdoor unit of a heat pump type chilling unit or a package type air device and a boiler for hot water supply / heating, which are conventionally arranged differently. However, while preventing the deterioration of capacity during heating,
The present invention relates to an energy-saving, low-noise type air conditioner whose main purpose is to significantly reduce power consumption.

[Conventional technology]

Usually, the heat source in an air conditioner is a fan coil unit or an air cooler that can be installed on the indoor side through a water pump that heats and cools the water to an appropriate temperature by an air-cooling heat pump type air conditioner or a heat pump chilling unit. Each air conditioner is fed to various air conditioners such as handling.

That is, most of the outdoor unit, the chilling unit, and the water pump mechanism of the package type air conditioner are designed so that air is sucked in from the peripheral portion of the machine body and blown out from the upper portion, and a noise is generated by such a shape. Because it was inevitable, it was usually installed outdoors.

[Problems to be Solved by the Invention]

However, it is not appropriate to install a heat source type air conditioner such as a heat pump type package type air conditioner or a heat pump type chilling unit outdoors as described above in view of the surrounding environment and installation space, especially due to wind and rain. It has various social problems such as corrosion, danger, noise noise, etc., and significantly reduces the heating capacity due to unseasonable conditions, etc. even when used in winter during heating or in cold regions. It had a serious drawback.

In addition, it is inevitable that the heat exchanger is frosted at low temperatures, and an electric heater or defrost circuit must be provided as a means for removing it, so the structure is complicated and expensive. It was.

Further, in the case of indoor exhaust, a certain amount of heat is recovered by a total heat exchange unit of another system based on the Building Management Law.

When using the above chilling unit, when the temperature drops significantly, such as during snowfall in cold districts or at night, when the temperature drops significantly, the hot water temperature of the heat pump chilling unit is changed from 40 to 50 ° C to 60 to 70 ° C. Even when hot water is being supplied to each unit in the room by raising it to C, since the hot water supply mechanisms such as the hot water supply including the hot water boiler are separately installed, the amount of heat from the hot water boiler and the heat supplied to the room Most of it was released naturally and was said to be very uneconomical.

[Means for Solving the Problems]

In view of these drawbacks, the present invention is to make the most effective use of the amount of heat that is naturally emitted as described above, and the outline of the configuration is as follows. An inlet is provided for each opening and a blower passage is formed therein, and heat exchangers, refrigerating machines, blowers and other mechanical devices are arranged in the blower passage, and a hot water boiler is provided in front of the heat exchanger. It is intended to provide an air conditioner characterized by being arranged adjacent to each other.

[Action]

The dampers in the ventilation passages in the fuselage are switched during cooling and heating, and the outside air and cold / warm air from the indoor exhaust air intake are switched to the machine room only or to the boiler room to send the air. By sending the residual warm air in the boiler room to the machine room side, this heats the heat exchanger, prevents the decline of the heat exchange effect in winter, and saves energy and more effectively recovers heat. .

By the way, when the damper device is opened / closed during cooling / heating, the outside air and the low temperature air inside the room directly flow into the machine room A, and the heat exchanger installed in the room exchanges heat at an appropriate temperature. By the opening / closing operation, the outside air flows into the boiler room B and the machine room A together with the warm air in the room, and the heat exchanger collects the heat together with the residual heat of the hot water boiler.

〔Example〕

Hereinafter, a basic embodiment of the present invention will be described with reference to the heat pump chiller unit shown in FIG. 1. The interior of the machine body 1 is divided into a machine room A and a boiler room B by a partition plate 2,
An indoor exhaust air intake 3 and an outside air intake 4 are provided at appropriate places such as the upper part or the front part of the two chambers A and B, and an exhaust port 12 is provided at the upper part or the rear part of the machine body 1, and the respective port parts 3, An air passage C communicating with 4, 12 is formed in the fuselage 1.

Inside the blower passage C, various mechanical devices such as a heat exchanger 5, a compressor, a refrigerating machine 6 such as a water heat exchanger 6, a cold / hot water pump 7, a blower 8, an electric conductor 9 and an electric equipment box 10 are arranged. At the same time, a hot water boiler 11 is installed in the boiler chamber B on the front side of the heat exchanger 5.

It is also a consideration that a large number of fins 11 ″ are attached to a part of the exhaust pipe 11 ′ of the hot water boiler 11 to make the thermal efficiency of the boiler more effective.

It should be noted that although ducts are connected to the respective pipes in the drawings, these pipes are omitted.

Further, damper devices a, b, for air flow switching near the respective openings of the indoor exhaust air intake 3 and the outdoor air intake 4, and between the machine room A and the boiler room B.
c is provided so as to be openable and closable, and is configured to cut off or arbitrarily switch the air flow sent into the machine room A and the boiler room B depending on the cold and warm seasons.

For example, during cooling, the damper device a is closed and b is opened, so that the outside air or the low temperature air on the indoor side directly flows into the ventilation passage C of the machine room A without flowing through the boiler room B and is installed in the room. The heat exchanger 5 exchanges heat at an appropriate temperature.

In addition, during heating, the damper devices a and c are opened, and at the same time, the damper device b is closed or opened so that warm air on the inside side of the outside air intake 4 passes through the boiler chamber B from the indoor exhaust intake 3 by opening or closing the damper device b. With the residual heat of the hot water boiler 11, the heat flows into the machine room A and the heat exchange operation and heat recovery by the heat exchanger 5 can be performed.

Another embodiment shown in FIG. 2 has a partition plate 2 in the machine similar to the above.
The U-shaped air passage C is formed by means of various mechanisms such as a heat exchanger 5, a refrigerating machine 6, a cold / hot water pump 7, a blower 8, an electric motor 9, and an electrical equipment box 10 in the substantially U-shaped air passage C. A hot water boiler 11 is installed on the front side adjacent to the machine room A in which the devices are arranged.

Further, one inlet portion of the above-mentioned substantially U-shaped air passage C is an indoor exhaust air intake 3 and an outside air intake 4 which can be opened on the upper side of the machine body 1.
At the outlet side, the exhaust port 12 is connected and communicated with the exhaust port 12, respectively, and is opened and closed by the damper device a'b'c 'installed between each port and the passages A and B in both chambers in the same manner as described above. It is possible to easily switch the air flow direction in the air passage.

In the figure, reference numeral 13 is a thin turn tank, 14 is an air filter, and 15 is a silencer.

Further, according to the present invention, a bypass pipe 16 is provided between the hot water boiler 11 and the heat exchanger 5 to prevent the formation of frost on the heat exchanger 5 by using the high temperature water from the hot water boiler 11 in winter. It can be done.

Further, the blower 8 installed in the blower passage C can be used not only for the circulation of the outside air but also as a blower for exhaust air by connecting the duct to the inside of the room so that not only the energy saving but also the indoor environment can be made quieter. To get.

The air conditioner according to the present invention is configured as described above, and during cooling, the low temperature air exhausted from the room and the outdoor air directly flow to the machine room A due to the closing of the damper devices a and b in the air passage C. Also, during heating, the damper device b is closed, and the heating of the indoor side flows into the boiler chamber B together with the heat source air due to the opening of a and c, and the introduced air is supplied to the boiler chamber B.
It is possible to mix the internal temperature and the residual heat of the hot water boiler 11 to blow hot air of a considerably high temperature into the air blowing passage C of the machine room A.

〔The invention's effect〕

As described above, according to the present invention, a heat exchanger, a refrigerating machine, and a blower are arranged in a blow passage formed inside the machine, and a hot water boiler is formed integrally adjacent to the front part of the heat exchanger. Therefore, the outdoor unit and chilling unit of the package type air conditioner, which were conventionally arranged separately,
It is possible to solve the problems caused by the outdoor installation, such as the pump, the space for individually arranging various mechanical devices such as the hot water boiler, and the exposure of the machine body and corrosion due to wind and rain.

In particular, even in cold regions and in the environment of ultra-low temperature at night, important mechanisms such as heat exchangers are arranged close to the hot water boiler, so the heat recovery of the residual heat of the hot water boiler and the exhaust heat from the room is recovered. Since it is also easy to perform, there is no need for a total heat exchanger, and the natural heat retention described above completely prevents frost formation on the heat exchanger, thus reducing the heating capacity in winter. It has the advantage that it can be solved all at once and the energy used can be greatly reduced.

Further, since the hot water boiler can be easily used in any type of boiler such as hot water supply, heating, or a dual-purpose type, it can be installed not only in cold regions but also in other regions. .

Further, by forming the air passage in the U-shape as described in claim 1, the air passage distance becomes longer than that of a mere straight air passage, so that various mechanical devices can be effectively arranged and the whole type is provided. Not only can the shape be made extremely compact, but it also has the effect of naturally controlling the noise caused by noise due to the long distance of the ventilation distance.

Further, as described in claim 1, the hot water boiler and the heat exchanger are connected by a bypass pipe, and a part of the hot water of the hot water boiler is circulated to the heat exchanger to prevent frost formation in the heat exchanger. Therefore, there is no need to install an electric heater for defrosting, a defrost circuit, or the like in the mechanism, which has the effect of significantly increasing the efficiency of the heat exchanger.

Also, by using the blower in the blower passage as the blower for exhaust air as well as the blower for exhaust air, it is not necessary to separately seek a blower for circulation of the outside air, and the overall shape can be formed extremely compact as in the above. At the same time, it has remarkable effects such as being very economical.

[Brief description of drawings]

FIG. 1 is a general view schematically showing an internal mechanism of an air conditioner according to the present invention, and FIG. 2 is a schematic view showing an internal mechanism according to another embodiment. Explanation of symbols A ... Machine room, B ... Boiler room, C ... Blower passage 5 ... Heat exchanger, 8 ... Blower, 11 ... Hot water boiler

Claims (4)

[Claims] 1. An outside air inlet and an indoor exhaust air inlet are provided in an upper portion or a side portion in front of the machine body, and a ventilation passage is formed inside.
An air conditioner characterized in that a heat exchanger, a refrigerating machine, and a blower are arranged in the air passage, and a hot water boiler is arranged close to the front part of the heat exchanger. 2. The inside of the air passage is formed into a substantially U shape by a partition wall, and a heat exchanger, a refrigerating machine, and an air blower are arranged in the air passage to form a machine room, and the machine room is formed. Is integrally connected to a boiler chamber in which a hot water boiler is disposed, and the machine chamber and the upper portion of the boiler chamber are provided with respective openings for outside air and indoor exhaust air so as to communicate with the air passage and further to the machine chamber. An air conditioner characterized in that a damper device is installed between the air conditioner and the boiler chamber so that the air passage can be switched, and the damper device can freely switch between cooling and heating the air flow passing through the machine room and the boiler chamber. 3. An air conditioner characterized in that the heat exchanger and the hot water boiler are connected to each other by a bypass pipe so that a part of the hot water in the hot water boiler is circulated to the heat exchanger. apparatus. 4. An air conditioner in which the blower described in the above claims is also used as an exhaust blower.