JP2018204866A - Heat exchange unit utilizing groundwater - Google Patents

Abstract

To provide a heat exchange unit utilizing groundwater that has a simple structure, can control temperature in each facility utilizing temperature of the groundwater, is very low-cost because the heat source is the groundwater, and can operate for a long time.SOLUTION: In a housing, multiple automotive radiators consisting of water conduction pipe with cooling wheel and having been mass-produced already, a fan breathing heat or cool air into the water conduction pipe site, a blow port releasing air cooled or warmed in the water conduction pipe, and an outlet port of dew condensation water of the heat exchange are comprised. In a heat exchange unit utilizing groundwater, feed pipe and drain pipe are connected respectively at both ends of the water conduction pipe.SELECTED DRAWING: Figure 3

Description

The present invention relates to a groundwater heat exchange unit that can acquire and use a heat source composed of water resources at any location without limiting the area, and more specifically, heat using groundwater. By making the replacement part into a unit, a groundwater heat exchange unit that is easy to use, inexpensive, can be applied anywhere in the office, home, factory, etc., and can enhance heat exchange efficiency by forced air blowing by a fan. The purpose is to provide.

As an air conditioner using groundwater, an indoor unit provided in a greenhouse that performs horticultural horticulture, such as JP 2009-236329 A, and an inflow of refrigerant connected to the indoor unit or A refrigerant pipe for flowing out, a non-defrost heat pump outdoor unit connected to the indoor unit with a refrigerant pipe, a heat exchanger for absorbing geothermal or groundwater water cooling heat source (latent heat) connected to the non-defrost heat pump outdoor unit, There has been proposed a non-defrost heat pump apparatus for horticultural cultivating, characterized in that a blower is provided in the vicinity of the heat exchanger.

In addition, Japanese Utility Model Laid-Open No. 58-137968 (see Patent Document 2) includes a heat source side heat exchanger, heat, a utilization side heat exchanger, a compressor, and an expansion valve. A heat pump in which a compressor, a heat utilization side heat exchanger, an expansion valve, and a heat source side heat exchanger are connected in order, and the compressor circulates a heat medium in the circulation path, and the heat source side heat exchanger There is a prior art consisting of a heat pump using ground heat, in which one end performs heat exchange with the heat exchanger and the other end is located in the ground and a heat pipe is provided to exchange heat with the ground.

JP 2009-236329 A Japanese Utility Model Publication No. 58-137968

The inventor of the above-mentioned conventional example pumps ground water having underground heat and directly exchanges heat with indoor air, that is, a method that is nothing but a heat pump when releasing underground heat into the room, “direct ground water heat exchange type” It was called a “heat pump” and intensively researched a simple structure that pumps underground heat together with the groundwater and touches it with indoor air to air-condition.
As a result, it was found that the unit structure with the heat exchange part placed on the floor is easy to handle and structurally simple.

Therefore, the present inventor further researched to obtain a unit structure with the heat exchange part placed on the floor, and came up with a groundwater heat exchange unit that can be placed on the floor by unitizing the heat exchange part.

Therefore, the object of the present invention is that the structure is simple, the temperature of each facility can be adjusted using the temperature of the groundwater, and the heat source is groundwater, so that the cost is very low, It is to provide a groundwater heat exchange unit that can be operated for a long time.

That is, the groundwater-based heat exchange unit of the present invention is provided in the housing.
A number of radiators for automobiles that have already been mass-produced consisting of water pipes with heat sinks;
A fan that sucks hot air or cold air into the water pipe part;
An air outlet that discharges air cooled or heated by the water pipe;
Condensate drainage generated by heat exchange and
Ground water supply pipes and drain pipes are connected to both ends of the water flow pipe, respectively.

Furthermore, in the groundwater-based heat exchange unit according to the present invention, the plurality of radiators are connected to each other using flexible hoses.

As described above, the groundwater-use heat exchange unit of the present invention is obtained by unitizing the heat exchange portion in the air conditioning equipment.
Therefore, the following merits can be enjoyed.
1) In the groundwater-use heat exchange unit of the present invention, the groundwater-use heat exchange unit can be handled as one part, which is very easy to assemble and use.
2) By diverting existing members such as automotive radiators that have already been mass-produced, performance is guaranteed and it is a mass-produced product, so it is very inexpensive.
In addition, it is possible to provide a groundwater heat exchange unit that has a simple structure and is very inexpensive including installation costs.
3) Using a single groundwater heat exchange unit, it can be used in summer and winter without changing settings and can be used very easily.
4) Since the heat exchange unit using groundwater is simply put on the site without using a boiler using oil, etc., the cost can be greatly reduced. It can be used anywhere as long as water is secured.
Of course, in a factory that uses a large amount of water, it can save a lot of air conditioning costs.
5) The heat exchange efficiency can be further increased by forced air blowing by the fan.
6) In a greenhouse or the like, conventional house facilities can be left as they are, and air conditioning can be carried out just by placing them on the floor.

It is explanatory drawing for demonstrating one Embodiment of the groundwater utilization heat exchange unit of this invention. It is a graph which shows the temperature measurement result of each site | part of the experimental house in summer. It is a schematic sectional drawing which shows the structure of a heat exchange unit using groundwater (at the time of cooling). It is a schematic sectional drawing which shows the structure of a groundwater utilization heat exchange unit (at the time of heating). (A) is a schematic perspective view of the state before an assembly which shows the structure of a groundwater use heat exchange unit, (b) is a schematic perspective view at the time of completion of assembly which shows the structure of a groundwater use heat exchange unit. It is a schematic sectional drawing at the time of the assembly completion which shows the structure of a heat exchange unit using groundwater. It is explanatory drawing of the temperature distribution in 14:00 on April 11, 2017 measured with the groundwater use heat exchange unit. It is a schematic perspective view which shows the use condition of a heat exchange unit using groundwater.

Hereinafter, embodiments of the groundwater-based heat exchange unit of the present invention will be described in detail with reference to the drawings.

As shown in FIGS. 1, 3, and 4, the groundwater-based heat exchange unit 11 according to the present embodiment includes a plurality of water pipes 13 each having a heat radiating plate 14 in a housing 12 that can accommodate almost the whole. A radiator 15, a fan 16 for sucking hot air or cold air from the air inlet 17 into a plurality of radiators 15 including the water pipe 13, and cold air / air that discharges air cooled or heated by the water pipe 13. A warm air blowing port 18 and a drain port 19 for condensed water generated by heat exchange are provided.
And the water supply pipe 13a and the drain pipe 13b are connected with the both ends of the water flow pipe 13, respectively.

FIG. 3 shows the usage state of the groundwater-based heat exchange unit 11 during cooling. That is, hot air is sucked in from the air inlet 17 by the fan 16, and air cooled by the water flow pipe 13 is discharged from the air outlet 18.
On the other hand, FIG. 4 shows the use state of the groundwater-based heat exchange unit 11 during heating. That is, cool air is sucked in by the fan 16 from the air inlet 17, and air heated by the water flow pipe 13 is discharged from the air outlet 18.

Incidentally, in the present invention, a radiator for automobiles already mass-produced is used as the radiator 15.
That is, as shown in FIG. 5 (a), a plurality of commercially available automotive radiators 21 (five in the figure) are prepared, and as shown in FIG. 5 (b), the automotive radiator 21 is prepared. It arranges on the board | substrate 22 and it hold | maintains with the predetermined space | interval with the outer frame 23. FIG. A ventilation fan 24 is attached to one end of the outer frame 23. Further, an air outlet 25 is disposed in the outer frame 23 on the other side surface of the plurality of automobile radiators 21.
Thus, by diverting the automobile radiator 21 that has already been mass-produced, the performance is guaranteed and it is a mass-produced product, so it is very inexpensive.

FIG. 6 shows a state when the assembly of the radiator 15 is completed. As shown in FIG. 6, the plurality of automobile radiators 21 are connected to each other through flexible hoses 26 attached to connecting portions 27 made of nipples or the like. Of course, the water supply pipe 13 a and the drain pipe 13 b of the ground water are also connected to the connecting portion 27.

[Application example]
The present inventor installed an experimental house to which the groundwater heat exchange unit 11 of the above example was applied in Kai City, Yamanashi Prefecture. In the experimental house, the ceiling is opaque and has a box shape with an area of 3 m × 4 m and a height of 3 m, and is not an agricultural house. In addition, it is not a heat insulating wall and has a structure that does not consider confidentiality.
As shown in FIG. 1, a room in which the temperature measurement probe is placed in the experimental house for outside air temperature (1), intake air temperature (2), air blowing temperature (3), and screens are kept away from direct wind. Four units (4) for warm use were installed. The groundwater temperature was a little less than 16 ° C., and 20 liters flowed per minute.

FIG. 2 is a graph showing experimental results in summer. The measurement was performed every hour from 11:00 on September 11 to 11:00 on the next day.
As is apparent from the graph shown in FIG. 2, even when the outside air temperature in the experimental house is 37 ° C. or more, the indoor intake air temperature (intake port 17 side) is 25.8 ° C., and the room on the air blower port 18 side separated from the screen. The temperature was 22.8 ° C. It was found that the air temperature was 17 ° C. and heat exchange was performed well.
FIG. 7 is for explaining the temperature distribution in the experimental house at this time based on FIG. Even if the outside air temperature (1) in the experimental house is 37 ° C. or higher, the indoor intake air temperature (2) (inlet 17 side) is 25.8 ° C., and the indoor temperature (4) on the air outlet 18 side across the screen is 22 8 ° C. The blast temperature (3) was 17 ° C.

Moreover, as shown in FIG. 8, when the groundwater use heat exchange unit 11 of the present invention is applied to an agricultural house 28, the conventional house equipment may be left as it is, and air conditioning can be performed simply by placing it on the floor. Therefore, it is a really simple method and of course the installation cost is extremely low.
Of course, it can be used easily anywhere in the facility, so it can be used anywhere in offices, factories, and homes as long as water is available. In addition, factories that use large amounts of water can save a lot of air conditioning costs.

In addition, this invention is not limited to embodiment mentioned above, It can deform | transform in the range which does not change the summary of this invention.
Of course, it may be applied not only to agricultural houses but also to offices, factories, and general households.

DESCRIPTION OF SYMBOLS 11 Groundwater use heat exchange unit 12 Housing 13 Water flow pipe 13a Water supply pipe 13b Drain pipe 14 Radiator plate 15 Radiator 16 Fan 17 Air inlet 18 Air outlet 19 Drain outlet 21 Radiator 22 for automobiles already mass-produced Substrate 23 Outer frame 24 Fan 25 Blower 26 Flexible hose 27 Connecting portion 28 Agricultural house

Claims (2)

In the housing,
A number of radiators for automobiles that have already been mass-produced consisting of water pipes with heat sinks;
A fan that sucks hot air or cold air into the water pipe part;
An air outlet that discharges air cooled or heated by the water pipe;
Condensate drainage generated by heat exchange and
A groundwater heat exchange unit, characterized in that a groundwater supply pipe and a drain pipe are connected to both ends of the water flow pipe, respectively. The groundwater heat exchange unit according to claim 1, wherein the plurality of radiators are connected to each other using a flexible hose.

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