JP2018105524A - Unit cooler for well water duct using well water - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooling unit capable of performing energy saving and economical cooling operation and further decreasing humidity due to some problems found at a production facility in a factory or the like by generated heat or exhausted steam accompanied with operation at machines so that countermeasure arrangement for severe labor environment is rapidly required, a tremendous amount of money for electricity is needed for performing cooling operation by a conventional package-type air conditioner due to the fact that the production facility requires a wide operation space and there are many heat sources such as the machines or the like.SOLUTION: This invention relates to a unit cooler for a well water duct in which it has a piping 4 and a pump 2 for sucking well water 1, a filtering device 3 is arranged from the pump 2 through the piping 4 and connected to a heat exchanger 5 having a cooling water coil, there is provided a Sirocco fan 6 to enable air to flow and pass through the heat exchanger 5 so as to feed the air cooled by the heat exchanger 5 to a main pipe duct 7 by the Sirocco fan 6, and there are provided several branch ducts 8 from the main pipe duct 7.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a unit cooler for a well-water type duct using well water that is provided by rotating a duct at a plurality of locations while saving energy and reducing environmental load using well water.

  Conventional techniques include pumps and piping for supplying groundwater from wells to heat pumps, receiving water for groundwater cooled by a heat pump cooler, piping for supplying water to air counter-flow heat exchangers via the pumps, and the heat It has a pipe that guides groundwater flowing out from the exchanger to the condenser of the heat pump and a pipe that discharges groundwater from the condenser. Air in the greenhouse is taken in from the air intake of the heat exchanger, and heat is exchanged in the heat exchanger. There is a cooling device (for example, see Patent Document 1) in a greenhouse for facility horticulture that cools the greenhouse by blowing cold air from an air outlet into the greenhouse.

Japanese Patent Publication No. 63-50968 (refer to the claims, detailed description of the invention, and FIGS. 1, 3, and 4)

Today, global warming has become a global problem, and the average summer temperature in Japan continues to rise. Another feature of summer in Japan is high humidity. In production facilities such as factories, room temperature and humidity rise further due to heat generation and steam exhaustion from machine operation. There are not a few days when the room temperature exceeds 40 ° C and the humidity exceeds 60%, and there is an urgent need to prepare for a harsh working environment. Since production facilities have a large work space and many heat sources such as machines, a large amount of electricity costs will be required if the conventional packaged air conditioner is used for cooling. Because of these problems, there is a demand for a cooling device that can save energy and saves the environment, and can reduce humidity.
Then, this invention provides the unit cooler for well water type ducts using the well water which eliminated the said subject.

1st invention of this invention is the unit cooler for well water type ducts using the well water as described in Claim 1, and is as follows.
It has a pipe and a pump for absorbing well water, a filtration device is provided from the pump through the pipe, and further connected to a heat exchanger having a cold water coil so that air can flow and pass through the heat exchanger. A sirocco fan is provided, the sirocco fan is provided so that air cooled by a heat exchanger can be sent to the main pipe duct, and a plurality of branch pipe ducts are provided from the main pipe duct.

The second invention of the present invention is a well cooler unit cooler using well water as described in claim 2, and is as follows.
In addition to the invention described in claim 1, an opening / closing valve is provided at each outlet of the branch pipe duct.

Since the well cooler unit cooler using well water according to the present invention has the configuration as described above, the following effects can be obtained.
(1) In Japan, groundwater is abundant. By using groundwater such as well water (for example, 17 ° C), it is possible to create a cold wind of 23 ° C to 25 ° C, and the necessary power is driven by the sirocco fan. The electricity cost can be reduced, and the electricity cost can be reduced by about 90% compared to the case of cooling with a conventional air conditioner.
(2) Using the well cooler unit cooler using well water of the present invention, the water after use rises to about 30 ° C. Reusing this (steam boiler, hot water boiler, etc.) will save fuel costs in addition to ecology.
(3) By using low-temperature water not only in summer but also in winter, it can also be used for heating and can be eco-friendly.
(4) The building can be spot-cooled as it is.
(5) By providing a plurality of branch ducts from the main duct, cold air can be blown to a plurality of locations.
(6) A dehumidifying effect can also be expected.

It is a schematic front view which shows the whole apparatus which concerns on the unit cooler for well water type ducts using the well water of this invention. It is a schematic front view which shows a part of apparatus concerning the unit cooler for well water type ducts using the well water of this invention. It is a schematic side view which shows a part of apparatus concerning the unit cooler for well water type ducts using the well water of this invention.

  It has a pipe and a pump for absorbing well water, a filtration device is provided from the pump through the pipe, and further connected to a heat exchanger having a cold water coil so that air can flow and pass through the heat exchanger. A sirocco fan is provided so that the air cooled by the heat exchanger can be sent to the main pipe duct by the sirocco fan, and a plurality of branch pipe ducts are provided from the main pipe duct. is there.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
As shown in FIGS. 1 to 3, the use location of the well cooler unit cooler using the well water of the present invention according to the present embodiment includes a cleaning factory, a high-temperature work place, an existing general factory, a warehouse, etc. Can be considered. As means for solving the above-described problems, a well cooler unit cooler using well water has been invented.
It is a device that cools air taken in by a heat exchanger, removes humidity, sends air cooled by a sirocco fan to a main pipe duct, and further sends cold air to a branch pipe duct that is branched from the main pipe duct.
The heat exchanger refrigerant uses not only well water but also various ground waters or river water, etc., and the electricity bill for cooling the air that occupies most of the conventional air conditioners can be saved a considerable part It is.
In the well cooler unit cooler using well water according to the present invention, ground water and well water that have passed through a heat exchanger as refrigerant rises by about 10 degrees and are discharged. For example, in a production facility such as a cleaning industry that uses well water, it is too cold to use at the same temperature, so the well water is often used after being warmed by a boiler or the like. In such a case, the cost of heating can be reduced by reusing the well water used in the well cooler unit cooler using the well water of the present invention.
The cooled air is sent out by a sirocco fan and flows into the main pipe duct. This main pipe duct is connected to a plurality of branch pipe ducts (for example, 5 to 7 branches). You can make it hit directly every time. By passing cold air through the duct through the building, the entire building can be cooled without being cooled. From these points, the well cooler unit cooler using well water is an energy-saving and eco-friendly cooling device for production facilities.
Sirocco fans are more resistant to static pressure than pressure fans, so they have the characteristic that the airflow does not decrease even when used in places with high static pressure such as ducts.
In addition, the increase / decrease in the air volume of a sirocco fan adjusts by using an inverter and converting a frequency.

Here, the configuration of one embodiment will be described with reference to FIGS.
A pump 2 that absorbs and feeds well water 1 such as a well through a pipe 4 and a filtration device 3 to make the well water 1 clean water.
The well water absorbed through the pump 2 and the filtering device 3 is supplied to the cold water coil type heat exchanger 5, and the temperature of the well water cooled by the counterflow of the ground water to the air in the heat exchanger 5 is used, The hot air is cooled, and the cooled air is sent to the main duct 7 by the sirocco fan 6 and further sent to the branched duct 8 so that the cool air can be jetted and provided to each necessary place. .
It should be noted that the branch pipe duct 8 that is branched can be provided with an open / close valve 10 so that the branch pipe duct 8 that is not required to be used is in a closed state so that cold air can be efficiently provided by the necessary branch pipe duct. is there.
Further, the well water 1 is drained from the well water outlet 9 through the heat exchanger 5 having a cold water coil, and the drained well water is drained at a temperature of about 10 ° C., and is reused for boilers and the like. By doing so, energy can be used effectively.

  The structure of the chilled water coil heat exchanger 5 is called a plate fin coil, in which tens of copper pipes are regularly arranged in parallel, and about 300 aluminum plate fins are equally spaced there. It is inserted and provided. Each pipe is connected by a U-shaped pipe called a bend, and the well water drawn from the pump passes through the pipe one after another. Copper (or aluminum) has good thermal conductivity, and well water. Chilled with pipes and fins. The air sucked up by the sirocco fan passes through the gaps between the fins inserted into the pipe, and is heat-exchanged and cooled. When the hot air touches the cold fins, the fins condense and becomes drainage and falls down through the fins. Because of this effect, the well cooler unit cooler of the present invention using well water can perform dehumidification.

  In addition, the connection of the well water pipe and the cold water coil, the well water pipe is different depending on the place of use, just connect the pipe through which the well water passes to the socket of the well cooler unit cooler using the well water of the present invention The head loss due to the cold water coil is small, and using a normal pump is sufficient.

  In cleaning factories, high-temperature workplaces, factories, warehouses, etc., not only the temperature is high, but also the humidity is high, so the temperature of the cold air that is blown out is not so low, but it feels cool enough as the temperature of experience However, not only this, but also with an increase in summer temperature in recent years, even ordinary buildings can be felt as cool enough to be experienced, so it can be used in offices and private houses.

DESCRIPTION OF SYMBOLS 1 ... Well water 2 ... Pump 3 ... Filtration device 4 ... Piping 5 ... Heat exchanger 6 ... Sirocco fan 7 ... Main duct 8 ... .... Branch pipe duct 9 ... Well water outlet 10 ... Open / close valve

Claims (2)

  It has a pipe and a pump for absorbing well water, a filtration device is provided from the pump through the pipe, and further connected to a heat exchanger having a cold water coil so that air can flow and pass through the heat exchanger. Well water using well water, characterized in that a sirocco fan is provided, the sirocco fan is provided so that air cooled by a heat exchanger can be sent to the main pipe duct, and a plurality of branch ducts are provided from the main duct. Unit cooler for type duct.   The unit cooler for a well-water type duct using well water according to claim 1, wherein an opening / closing valve is provided at each outlet of the branch pipe duct.

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