JP6932327B1 - Compressed pneumatic circuit unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compressed pneumatic circuit unit which realizes energy efficiency and reduction of drainage amount. SOLUTION: In a compressed pneumatic circuit unit in which at least an air compressor, an air tank and a refrigerating air dryer are provided in a compressor chamber having a predetermined space, the compressor chamber is provided with an outside air intake port and a hot air exhaust port, and the compressor chamber is provided. It is equipped with a cooler unit equipped with a duct for cooling the outside air taken in from the outside air intake to generate cold air and sending the generated cold air, and takes in the cold air generated by the cooler unit. A means is adopted in which the intake port of the air compressor is arranged at a possible location. [Selection diagram] Fig. 1

Description

The present invention relates to a compressed pneumatic circuit unit, and more particularly to a technique for realizing energy efficiency and reduction of drainage in a compressed pneumatic circuit unit including at least an air compressor, an air tank, and a refrigerating air dryer.

Compressed air generated by an air compressor is used at the end of food processing, finishing of precision equipment such as lenses, and cleaning. Depending on the application of the compressed air, it is strictly prohibited to take out moisture. Therefore, the conventional compressed air pressure circuit is configured via an air dryer in the middle of the pneumatic circuit, and can be completely removed in the subsequent stage of the air dryer. In order to remove the missing water and the like, an air filter made of resin or paper and having a net-like or hollow fiber membrane-like shape or an air filter wrapped with activated carbon is arranged.

However, according to the configuration of the conventional compressed air pressure circuit, the saturated water vapor amount increases or decreases in proportion to the temperature, so that the heated compressed air discharged by the air compressor is cooled in the piping path leading to the air dryer. If this is the case, the amount of saturated water vapor under pressure will also decrease, causing drainage to occur in the pipeline, and the drain will enter the air dryer together with the compressed air, causing the air dryer to cool and dehumidify the drain as well. As a result, there is a problem that the heat exchange efficiency is deteriorated as the amount of drain increases, and the energy consumption is excessively increased.

Further, in the conventional configuration of the compressed air pressure circuit, the drain traps connected to the air tank, the air dryer, and the air filter arranged in the subsequent stage are each malfunctioning as the drain amount is increased and the drain outlet is clogged. In that case, a large amount of water is taken out to the subsequent stage, causing the air dryer and the air filter to malfunction, and there is a problem that a large amount of water is released at the end.

The applicant has constructed a compressed pneumatic circuit by paying attention to the amount of saturated water vapor that increases and decreases in proportion to the temperature, triggered by the problem of energy efficiency associated with the amount of drain discharge in the configuration of the conventional compressed pneumatic circuit as described above. Based on the idea that it is possible to reduce the amount of drainage that can occur in various devices, we have developed a configuration of a compressed pneumatic circuit that realizes energy efficiency and reduction of drainage emissions, and the "compressed air pressure" according to the present invention. This leads to the proposal of "circuit unit".

Japanese Unexamined Patent Publication No. 2006-152945

In view of the above problems, it is an object of the present invention to provide a compressed pneumatic circuit unit that realizes energy efficiency and reduction of drainage amount.

In order to solve the above problems, the present invention presents a compressed pneumatic circuit unit in which at least an air compressor, an air tank, and a refrigerating air dryer are provided in a compressor chamber having a predetermined space. The cooler unit is equipped with an exhaust port and a duct for cooling the outside air taken in from the outside air intake port to generate cold air and sending the generated cold air. A means is adopted in which the intake port of the air compressor is arranged at a place where the cold air generated by the above can be taken in.

Further, the present invention adopts a means including a thermo-hygrometer for measuring the temperature and humidity in the compressor chamber and a thermo-humidity meter for measuring the temperature and humidity in the duct in the cooler unit.

Further, the present invention employs a means in which the cooler unit is a water-cooled type.

Further, in the present invention, the compressor chamber is provided with a storage chamber having a predetermined space for accommodating an air compressor, an air tank, and a refrigerating air dryer, and the accommodation chamber is provided with a cold air intake port and a hot air exhaust port. Therefore, a means is adopted in which the cold air intake of the accommodation chamber is arranged at a place where the cold air generated by the cooler unit can be taken in.

Furthermore, the present invention employs a means provided with a thermo-hygrometer for measuring the temperature and humidity in the containment chamber.

According to the compressed air pressure circuit unit according to the present invention, since the compressor chamber is equipped with a cooler unit capable of cooling the outside air and generating cold air, the amount of water vapor contained in the generated cold air is reduced. , The air compressor takes in the cold air to generate compressed air, which reduces the amount of drainage generated from various devices such as air tanks, refrigeration air dryers, and air filters connected to the subsequent stages. It contributes to the reduction of the mechanical load on the equipment and the attached drain trap, and also contributes to the improvement of energy efficiency by improving the heat exchange efficiency of the refrigerating air dryer and saving the electric load.

Further, according to the compressed air pressure circuit unit according to the present invention, instead of sucking all the cold air generated by the cooler unit into the air compressor, a part of the cold air is filled in the room where various devices exist to cool the room. As a result, the outside space of the piping line that connects various devices such as an air compressor, an air tank, and a refrigerating air dryer installed in the room to send compressed air is cooled by cold air, and is generated by the air compressor. Since the temperature difference between the compressed air passing through the pipeline and the outside air in the vicinity of the pipeline is reduced, it has an excellent effect of reducing the occurrence of drainage in the pipeline and contributing to the suppression of drain intrusion into the subsequent equipment. It plays.

Further, according to the compressed air pressure circuit unit according to the present invention, according to Boyle-Charles' law, the air compressor takes in cold air, which contributes to the improvement of the compression efficiency in the generation of compressed air, and as a result, in the air compressor. It has excellent effects such as contributing to power saving and improvement of energy efficiency.

It is explanatory drawing which shows the embodiment of the compression pneumatic circuit unit which concerns on this invention. It is explanatory drawing which shows the embodiment of the compression pneumatic circuit unit which concerns on this invention.

The compressed pneumatic circuit unit according to the present invention is a compressed pneumatic circuit unit in which at least an air compressor 1, an air tank 2, and a refrigerating air dryer 3 are provided in a compressor chamber having a predetermined space, and a cooler unit 10 is provided in the compressor chamber 7. The biggest feature is that it is equipped and employs a means in which the cold air generated by the cooler unit 10 is taken into the air compressor 1.
Hereinafter, embodiments of the compressed pneumatic circuit unit according to the present invention will be described with reference to the drawings.

The compressed pneumatic circuit unit according to the present invention is not particularly limited to the embodiments described below, and is within the scope of the technical idea of the present invention, that is, a shape, size, material, etc. capable of exhibiting the same action and effect. It can be changed as appropriate within the range of.

1 and 2 are explanatory views showing an embodiment of a compressed pneumatic circuit unit according to the present invention.
The compressed air pressure circuit unit according to the present invention includes at least an air compressor 1, an air tank 2, and a refrigerating air dryer 3 in a compressor chamber having a predetermined space, and after compressed air is generated by the air compressor 1, the air tank 2 , It constitutes a pneumatic circuit of compressed air until it is finally discharged through the refrigerating air dryer 3 and the air filter 4.

The air compressor 1 is a machine that compresses air to generate compressed air having a predetermined atmospheric pressure or higher, and there are various types such as a reciprocating type, a rotary type, and a centrifugal type depending on the structure for generating the compressed air. .. The method of the air compressor 1 used in the present invention is not particularly limited, and any method and structure can be used.

The air tank 2 is for temporarily storing the compressed air generated by the air compressor 1, and is connected to the subsequent stage of the air compressor 1 via a piping line 5 or integrally with the air compressor 1. It is equipped. The drawings show the former aspect.

The refrigerating air dryer 3 is a device for cooling compressed air and condensing and removing contained moisture by utilizing the latent heat of vaporization of the refrigerant, and is connected to the subsequent stage of the air tank 2 via a piping line 5. .. The refrigerating air dryer 3 generally has an air-cooled type and a water-cooled type depending on the cooling method. The refrigerating air dryer 3 used in the present invention does not depend on whether it is an air-cooled type or a water-cooled type, and is not particularly limited.

The air filter 4 is a filter for removing water, oil, sludge and microorganisms in compressed air, and is connected to the subsequent stage of the refrigerating air dryer 3 via a piping line 5. The specific structure of the air filter 4 is not particularly limited, and an air filter 4 made of resin or paper and having a net-like or hollow fiber membrane shape, or an air filter 4 wrapped with activated carbon is used.

In addition to the devices listed above, various other devices may be provided as the compressed pneumatic circuit unit according to the present invention, if necessary. Examples of such other various devices include a centrifuge and the like. The centrifuge is a cyclone type separator for removing water and oil in compressed air. Compressed air entering the housing generates centrifugal force by passing through a deflector, and the centrifugal force is generated. It has a structure in which oil and moisture in the air and solid matter are struck against the inner wall of the housing to be dropped, and only the air is taken out through a cartridge provided in the central portion. The centrifuge is arranged between the air tank 2 and the refrigerating air dryer 3, between the refrigerating air dryer 3 and the air filter 4, or in the subsequent stage of the air filter 4 via a piping line 5 with other equipment. NS.

The piping line 5 is composed of a hollow pipe for supplying compressed air, and each device is connected so as to connect various devices such as an air compressor 1, an air tank 2, a refrigerating air dryer 3, an air filter 4, and other centrifuges. They are arranged in between, and are arranged so as to sequentially send compressed air to the subsequent equipment.

The air tank 2, the refrigerating air dryer 3, and the air filter 4 are provided with a drain trap 6. Further, other equipped devices such as a centrifuge are also provided with a drain trap 6 as needed. The drain trap 6 is a device for discharging oil and water stored in various devices to the outside, and there are an electromagnetic type, a float type, and the like depending on the discharge method. The drain trap 6 used in the present invention does not ask whether it is an electromagnetic type or a float type, and is not particularly limited, but a spring snap action type or a magnet snap action type float type drain trap is used. As a result, when a predetermined amount of drain is stored, the drain can be mechanically and automatically discharged to the outside, and the certainty of drain discharge is ensured.

The compressor chamber 7 is formed by forming an enclosed space that can be shielded from the outside world by a frame, and the chamber is provided with at least an air compressor 1, an air tank 2, and a refrigerating air dryer 3, and a cooler described later. The unit 10 is equipped and is formed with a predetermined space capable of accommodating these devices. The compressor chamber 7 is provided with one or a plurality of outside air intake ports 7a at predetermined locations so that the air in the outside world can be taken into the room. Further, the compressor chamber 7 is provided with one or a plurality of hot air exhaust ports 7b at predetermined locations, so that the air in the chamber can be discharged to the outside world. In the drawing, the case where the compressor chamber 7 is provided with two outside air intake ports 7a and one warm air exhaust port 7b is illustrated.

The location where the outside air intake port 7a is arranged in the compressor chamber 7 is not particularly limited, but as shown in the figure, it is preferable that the outside air intake port 7a is arranged at a relatively lower position in the frame body constituting the compressor chamber 7. .. The compressor chamber 7 is equipped with a cooler unit 10 for cooling the outside air, and in view of the cooling efficiency of the cooler unit 10, it is preferable that the temperature of the outside air taken into the compressor chamber is originally cold, and it is cold. In view of the natural phenomenon that air moves downward, it is desirable that the outside air intake port 7a is also arranged at a position as low as possible.

The location of the hot air exhaust port 7b in the compressor chamber 7 is not particularly limited, but is disposed at a relatively upper position (top surface location) in the frame body constituting the compressor chamber 7 as shown in the figure. The mode to be used is preferable. The hot air exhaust port 7b is a vent for exhausting unnecessary warm air that originally existed in the room by filling the compressor room with cold air, and is a natural phenomenon in which warm air moves upward. In view of the above, it is desirable that the warm air exhaust port 7b is also arranged at an upper position as much as possible, more preferably at the top surface.

By the way, the compressor chamber 7 including the air compressor 1, the air tank 2, the refrigerating air dryer 3, the air filter 4, and the cooler unit 10 requires a large space area, and the entire chamber of the compressor chamber 7 will be described later. It takes a considerable amount of time to fill the room with the cold air generated by the cooler unit 10 to cool the room. As a result, there will be a large time lag between the start of generation of compressed air and the completion of indoor cooling, and it is expected that a time loss will occur before the action and effect are exhibited. Therefore, there has been a demand for a technology that can quickly complete the cooling of the external space even with only various devices that are indispensable for exerting the action and effect.

Therefore, as a configuration of the compressed pneumatic circuit unit according to the present invention, an aspect is adopted in which the compressor chamber 7 is provided with a storage chamber 40 for accommodating the air compressor 1, the air tank 2, and the refrigerating air dryer 3. That is, various devices indispensable for exerting the action and effect of the present invention are an air compressor 1, an air tank 2, and a refrigerating air dryer 3. A storage chamber 40 capable of accommodating these is separately provided, and the storage chamber 40 is provided with cold air. This is a mode of space cooling.

The accommodation chamber 40 is formed by forming a space surrounded by a frame so as to be shielded from the indoor space of the compressor chamber 7, and the chamber is provided with an air compressor 1, an air tank 2, and a freezing air dryer 3. It is formed with a predetermined space smaller than the compressor chamber 7 capable of accommodating these devices. A cold air intake port 40a is provided in the storage chamber 40 so that the cold air generated by the cooler unit 10 can be taken into the room. Further, the accommodation chamber 40 is provided with one or a plurality of hot air exhaust ports 40b at predetermined locations, so that the air in the chamber can be discharged to the compressor chamber 7. In addition, in the drawing, the case where one warm air exhaust port 40b is provided is illustrated.

The location where the warm air exhaust port 40b is arranged in the accommodation chamber 40 is not particularly limited, but is arranged at a relatively upper position (top surface location) in the frame body constituting the accommodation chamber 40 as shown in the figure. The embodiment to be used is preferable. The hot air exhaust port 40b is a vent for exhausting unnecessary warm air that originally existed in the room by filling the accommodation room with cold air, and is a natural phenomenon in which warm air moves upward. In view of the above, it is desirable that the warm air exhaust port 40b is also arranged at an upper position as much as possible, more preferably at the top surface.

The cooler unit 10 is installed in the compressor chamber 7 and cools the outside air taken in from the outside air intake port 7a to generate cold air. The specific structure of the cooler unit 10 is a mode in which the outside air taken into the compressor chamber is taken in and cooled by interposing a heat exchanger 12, and is air-cooled (air heat source heat pump type) according to the specifications of the heat exchanger 12. ) And water-cooled type (water heat source heat pump package type), but the specifications of the cooler unit 10 according to the present invention are not particularly limited. However, since the object and the subject of the present invention are to improve energy efficiency and reduce the amount of drainage discharged, at least in the heat of vaporization method of cooling by utilizing the heat of vaporization accompanying the evaporation of water, the water vapor contained in the air. It is not preferable because it may cause an increase in the amount, and a water-cooled type is preferable. By adopting such a water-cooled cooler unit 10, there is no heat release due to sensible heat due to the cooling motion by heat recovery, energy consumption efficiency is higher than that of the air-cooled type, which contributes to energy saving and miniaturization is possible. Therefore, since water is used as the heat source, there are many merits such as stable air conditioning without being affected by the outside temperature.

The cooler unit 10 includes an outside air intake port 11 for taking in the outside air taken into the compressor chamber, a heat exchanger 12 for cooling the outside air taken in from the outside air intake port 11 to generate cold air, and cold air. It is provided with a duct 13 for sending air, a fan 14 for creating an air flow from the outside air suction port 11 to the duct 13, and a motor 15 for rotating the fan 14. That is, when the fan 14 is rotated by the motor 15, the outside air in the compressor chamber is taken in from the outside air suction port 11 and sent to the heat exchanger 12, and the cold air generated by the heat exchanger 12 is sent to the duct 13. It has a structure to be used.

By the way, regarding the specifications of the heat exchanger 12 in the cooler unit 10, when a water-cooled type is adopted, as shown in FIG. 1, a mode in which groundwater 21 is used as a heat source can be considered. That is, the groundwater 21 of the well 20 is pumped by the pump 23 via the pumping pipe 22, and the pumped groundwater 21 is sent to the water supply side of the heat exchanger 12 via the water supply pipe 24 by the pump 23, and the heat exchanger 12 The groundwater 21 which has recovered the heat of the outside air and has been warmed is drained to the drainage pit 26 or the like through the drainage pipe 25. Since the temperature of the groundwater 21 is generally constant at 16 to 18 ° C. and the annual water temperature difference is stable at less than 1 ° C., it is suitable for obtaining stable constant temperature water for cooling, and is a cooler. It can be said that it is a heat source suitable for generating cold air in the unit 10. Although the drawings show a mode in which heat source devices such as a well 20, a pump 23, and a drainage pit 26 are installed outside the compressor room, these heat source devices may be installed inside the compressor room.

Further, regarding the specifications of the heat exchanger 12 in the cooler unit 10, when a water-cooled type is adopted, as shown in FIG. 2, it is conceivable that the cooling tower 30 generates cold water for the water as a heat source. That is, the cold water generated in the cooling tower 30 is sent to the water supply side of the heat exchanger 12 via the water supply pipe 34 by the pump 31, and the cold water that has been warmed by recovering the heat of the outside air in the heat exchanger 12 is a drain pipe. It is a structure that returns to the cooling tower 30 via 35 and circulates. The cooling tower 30 is provided with an outside air intake port 30a for taking in outside air, a fan 32 for sending the outside air taken in from the outside air intake port 30a into the cooling tower 30, and a motor 33 for rotating the fan 32. A warm air exhaust port 30b for discharging the air in the cooling tower 30 to the outside world is provided. Further, in order to receive the cold water warmed by the cooler unit 10, the tip of the drain pipe 35 is extended to the inside of the cooling tower 30, and one or a plurality of watering nozzles are provided at predetermined positions of the portion of the drain pipe 35 existing in the cooling tower 30. 36 is provided. Further, a water supply means 37 and a ball tap 38 are also provided in order to compensate for the decrease due to evaporation of water in the cooling tower 30 and keep the water level constant.

By adopting the above configuration, the cooling tower 30 can be sprinkled from the watering nozzle 36 while receiving the air blown from the fan 32 when the warmed cold water is returned to the cooling tower 30 via the drain pipe 35. The part evaporates and the heat of vaporization is taken away, so that it is cooled again and becomes cold water. Evaporated water is supplemented by water supply, but since it is basically a mode in which water is circulated between the cooler unit 10 and the cooling tower 30, it can be reused as a heat source for water and water resources. It will contribute to savings. Although the drawing shows a mode in which the cooling tower 30 is installed outside the compressor room, it may be installed inside the compressor room.

The cold air generated by the cooler unit 10 is sent from the duct 13 by the rotation of the fan 14, and is sent to the intake port 1a of the air compressor 1, the compressor chamber, and the accommodation chamber 40. At this time, in order to efficiently inhale the air compressor 1, the intake port 1a of the air compressor 1 is arranged at a location where cold air can be efficiently taken in, specifically, inside or near the duct 13 as shown in the figure. It is installed. Further, the cold air intake port 40a in the accommodation chamber 40 is arranged at a place where the cold air generated by the cooler unit 10 can be efficiently taken in, specifically, inside or near the duct 13 as shown in the figure. ing.

In the compressed pneumatic circuit unit according to the present invention having the above configuration, it is preferable to measure the temperature and humidity in the compressor chamber and the duct in the cooler unit 10, and it is preferable that the thermo-humidity meter 8 is provided for that purpose. .. By measuring the temperature and humidity in the duct of the cooler unit 10, the amount of water vapor (saturated water vapor amount) contained in the cold air taken in by the air compressor 1 can be known, and the measured temperature and humidity in the compressor chamber can be known. By comparing with the above, it becomes easy to predict the amount of drainage that can be generated in various devices in the subsequent stage such as the piping line 5, the air tank 2, the refrigerating air dryer 3, and the air filter 4.

Further, in the compressed pneumatic circuit unit according to the present invention, it is preferable to measure the temperature and humidity in the accommodation chamber 40, and it is preferable that the thermo-humidity meter 8 is provided for that purpose. By comparing the measured temperature and humidity of the accommodation chamber 40 with the temperature and humidity in the duct of the compressor chamber 7 and the cooler unit 10, the amount of drainage discharged from the piping line 5, the air tank 2, and the freezing air dryer 3 can be generated. Is easy to predict.

Further, in the compressed pneumatic circuit unit according to the present invention, it is preferable to include a pressure gauge 9 for measuring the air pressure of cold air passing through the duct 13 in the cooler unit 10. The amount of water vapor contained in the cold air (saturated water vapor amount) increases or decreases not only with temperature and humidity but also with air pressure, and by measuring the air pressure in the duct there, it is contained in the cold air taken in by the air compressor 1. It becomes possible to know the amount of water vapor (saturated water vapor amount) to be produced more accurately. The pressure gauge 9 is appropriately provided in the piping line 5 and various devices constituting the compressed pneumatic circuit unit according to the present invention, if necessary.

Next, the process until compressed air is generated by the compressed pneumatic circuit unit according to the present invention and the air flow will be described.
The outside air taken into the compressor chamber 7 from the outside air intake port 7a is sucked from the outside air suction port 11 in the cooler unit 10 and sent to the heat exchanger 12, cooled by the heat exchanger 12 to generate cold air, and is generated. The generated cold air is discharged from the duct 13. The cold air discharged from the duct 13 is divided into three parts, and is first sucked into the air compressor 1 from the intake port 1a, and the compressed air is generated by the air compressor 1. The generated compressed air is sent to the air tank 2 via the piping line 5 for temporary storage, and further sent to the refrigerating air dryer 3 via the piping line 5 to remove the contained moisture, and then to the air filter 4 in the subsequent stage. Be sent air. Moisture, oil, sludge and microorganisms in the compressed air are removed by the air filter 4, and then the air is finally sent to the end through the piping line 5 and used for various purposes. The cold air discharged from the duct 13 is secondly sent to the accommodation chamber 40 through the cold air intake port 40a, and the air originally existing in the accommodation chamber 40 is pushed out from the warm air exhaust port 40b to the compressor chamber 7 to be exhausted. do. Further, the cold air discharged from the duct 13 is thirdly sent to the compressor chamber 7, and the air originally existing in the compressor chamber 7 and the air exhausted from the accommodation chamber 40 are sent to the outside world from the warm air exhaust port 7b. Exhaust to.

The drain generated in the air tank 2, the refrigerating air dryer 3, and the air filter 4 is discharged to the outside from various devices by the drain traps 6 connected to each of them.

As described above, the compressed air pressure circuit unit according to the present invention adopts an embodiment in which a cooler unit 10 capable of cooling the outside air and generating cold air is installed in the compressor chamber, and is contained in the generated cold air. The air compressor 1 takes in the cold air to generate compressed air in a state where the amount of water vapor (saturated water vapor amount) is reduced, so that the air tank 2, the refrigerating air dryer 3, and the air filter connected to the subsequent stage are generated. The amount of drainage discharged from various devices such as No. 4 can be reduced, which contributes to the reduction of the mechanical load on these various devices and the attached drain trap 6. Further, since the temperature of the compressed air generated from the cold air is also lowered, it is possible to improve the heat exchange efficiency in the refrigerating air dryer 3, and the energy efficiency is improved by saving the electric load applied to the refrigerating air dryer 3. It will contribute.

Further, in the compressed air pressure circuit unit according to the present invention, a part of the cold air generated by the cooler unit 10 is filled in the compressor chamber 7 and the accommodating chamber 40 to cool the room, thereby cooling the air compressor 1 and the air tank 2. Since the external space of the piping line 5 connecting various devices such as the refrigerating air dryer 3 is cooled by the cold air, the temperature difference between the compressed air generated from the cold air and the external air is reduced, so that the drain in the piping line 5 is drained. It becomes possible to reduce the occurrence, which contributes to the suppression of drain infiltration into the subsequent equipment.

Further, in the compressed air pressure circuit unit according to the present invention, a part of the cold air generated by the cooler unit 10 is filled in the accommodation chamber 40 to cool the room, thereby shortening the time required for cooling the entire room. Therefore, it is possible to reduce the time difference between the start of generation of compressed air and the completion of indoor cooling, so that compressed air can be generated without causing a time loss until the effects of the present invention are exhibited. From an early stage after the start, it is possible to exert the effects such as reduction of drainage amount, reduction of machine load, and improvement of energy efficiency.

Further, since the compressed air pressure circuit unit according to the present invention adopts a mode in which the outside air is cooled by the cooler unit 10 to generate cold air before the compressed air is generated by the air compressor 1, according to Boyle-Charles' law. According to this, the volume of cold air decreases in proportion to the temperature decrease due to cooling, and the air pressure of cold air increases in inverse proportion to the decrease in volume, so that the air compressor 1 takes in cold air and compressed air. Will contribute to the improvement of the compression efficiency, and as a result, it will contribute to the power saving and the improvement of the energy efficiency of the air compressor 1.

The present invention adopts a mode in which the outside air is cooled by a cooler unit to generate cold air in the compressed air pressure circuit before the compressed air is generated by the air compressor, thereby reducing the drainage amount and the mechanical load. It is possible to adopt the present invention in all fields where compressed air is used, in addition to the end processing such as food processing, finishing processing of precision equipment such as lenses, and cleaning, which realizes improvement of energy efficiency. Therefore, it is considered that the industrial applicability of the "compressed pneumatic circuit unit" according to the present invention is great.

1 Air compressor 1a Intake port 2 Air tank 3 Refrigeration air dryer 4 Air filter 5 Piping line 6 Drain trap 7 Compressor room 7a Outside air intake 7b Warm air exhaust port 8 Thermo-humidity meter 9 Pressure gauge 10 Cooler unit 11 Outside air intake port 12 Heat exchange Instrument 13 Duct 14 Fan 15 Motor 20 Well 21 Ground water 22 Pumping pipe 23 Pump 24 Water supply pipe 25 Drain pipe 26 Drain pit 30 Cooling tower 30a Outside air intake 30b Hot air exhaust port 31 Pump 32 Fan 33 Motor 34 Water supply pipe 35 Drain pipe 36 Sprinkling Nozzle 37 Water supply means 38 Ball tap 40 Storage chamber 40a Cold air intake 40b Hot air exhaust port

Claims (4)

In a compressed pneumatic circuit unit in which at least an air compressor, an air tank, and a refrigerating air dryer are provided in a compressor chamber having a predetermined space.
The compressor chamber is provided with an outside air intake port and a hot air exhaust port, and is provided with a duct for cooling the outside air taken in from the outside air intake port to generate cold air and for sending the generated cold air. Equipped with a cooler unit,
The compressor chamber is provided with a storage chamber having a predetermined space for accommodating an air compressor, an air tank, and a refrigerating air dryer, and the storage chamber is provided with a cold air intake and a hot air exhaust port.
Inlet of the air compressor at a position capable of intake cool air generated by the cooling unit is disposed Rutotomoni and cool air inlet of the housing chamber at a location which can incorporate cold air generated by the cooling unit is arranged A compressed pneumatic circuit unit characterized by being formed. The first aspect of the present invention, wherein a thermo-humidity meter for measuring the temperature and humidity in the compressor chamber is provided, and a thermo-humidity meter for measuring the temperature and humidity in the duct in the cooler unit is provided. Compressed pneumatic circuit unit. The compressed pneumatic circuit unit according to claim 1 or 2, wherein the cooler unit is a water-cooled type. The compressed pneumatic circuit unit according to any one of claims 1 to 3, further comprising a thermo-hygrometer for measuring the temperature and humidity in the accommodation chamber.

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