JP6416587B2 - air compressor - Google Patents

Description

The present invention relates to an air compressor.

  The air compressor includes a compressor body that creates compressed air, a motor that drives the compressor body, an electric device that controls the motor, and a heat exchanger that cools the compressed air and lubricating oil. Surrounding. It is sometimes called a so-called package type compressor.

As an example of a general layout of a package type compressor, there is a structure in which a heat exchanger is installed on the upper part of a compressor body, exhaust heat is released upward, and an installation area is reduced. (For example, refer to Patent Documents 1 and 2) Further, there is a structure in which a heat exchanger is installed in parallel with the compressor main body and exhaust heat is released from the side to the atmosphere upward. (For example, refer to Patent Document 3) These compressor cooling structures include a fan and a heat exchanger that ventilate the inside of the package, and the fan takes in cooling air from an intake port provided on a side surface of the package and heats the inside of the package. Cool down. Exhaust air is discharged from the exhaust port provided in the package ceiling upward or from the side to the atmosphere.

  In recent years, a display with a JIS waterproof protection grade is often used instead of the terms of complete waterproofing and life waterproofing. For example, in the JIS protection class (C0920 2003, IEC 6529 2001), the second characteristic number 1 = protection against dripping water (not adversely affected by vertically falling water drops), the second characteristic number 2 = 15 ° Protection against falling water when tilted (when tilted within 15 ° of normal mounting position, it is not adversely affected by water drops falling vertically), second characteristic number 3 = protection against spray water A standard such as (not adversely affected by water falling in a spray form within 60 ° from the vertical) is set.

On the other hand, the compressor is more low noise, is this improved to low vibration as there is product structure more waterproof performance is improved outdoors installable without a machine room with a dedicated user's preferred utility.

  In addition to low noise and low vibration, packaged compressors have been aimed at product specifications that can be used in environments with higher ambient temperatures due to global warming. Therefore, a heat exchanger having a larger capacity and a cooling fan in the package are installed in the package. Therefore, the pressure in the package is lowered due to the pressure loss of the device, and the difference between the atmosphere and the pressure in the package is increased.

JP2007-332788 JP-A-10-176668 Actual application 7-6193 JP2011-21521

  When a compressor is installed outdoors with the structure of the background art, rainwater may enter the exhaust port provided on the ceiling of the package, and the rainwater may reach the compressor body, the motor, and even electrical equipment. For this reason, especially in recent years, we have produced waterproof and water-resistant standards [JIS C 0920 2003, IEC 60529 2001] and manufactured products and parts according to them, and the compressor body, motors, electrical components and parts in the package are It is necessary to prevent problems such as rusting. Therefore, it is desirable to install indoors in the background art structure. Therefore, as a problem for enabling outdoor installation, it has been necessary to inherit the above-described layout and to have a structure conforming to waterproof and water resistance standards.

  Moreover, in the prior art which enabled outdoor installation, there exists an exhaust structure provided in the package ceiling and a structure characterized by receiving rain water intrusion by a shielding plate and a water receiving portion. (For example, see Patent Document 4) However, when an exhaust structure provided on the ceiling of the package is adopted, there is a risk that intrusion of rainwater will take up a lot of space to install a shielding plate and a water receiving portion, and compactness and rationalization may occur. There is.

  The present invention was made in view of the problems of the background art and the prior art that enabled outdoor installation, the purpose of which is possible for outdoor installation, waterproof, waterproof structure, and compact, The object is to provide a packaged compressor that can be rationalized. In addition, if there is a large difference between the atmospheric pressure and the package internal pressure, the package internal pressure becomes a negative pressure, which prevents entry into the package when rainwater is discharged to the outer surface of the package.

In order to achieve the above object, a packaged compressor of the present invention comprises a compressor body that creates compressed air, a motor that drives the compressor body, electrical equipment that controls the motor, and compressed air and lubricating oil. A heat exchanger for cooling and a dryer for removing moisture contained in the compressed air are provided, and the device is surrounded by a panel, and has a casing having an opening communicating with the outside air, and is provided outside the casing and is provided at least in the casing A waterproof structure that surrounds a surface having an opening, and the housing includes a first opening on a side surface of the housing that communicates with the outside air and takes in the outside air, and communicates with the outside air to provide the heat exchanger. The side surface is provided with a second opening for exhausting the exhaust that has passed to the outside air, and the top surface is provided with a third opening for exhausting the exhaust that has passed through the dryer in communication with the outside air to the outside. Second opening side Together provided on the upper surface outside of the projection plane of the projection surface outside and said third opening, provided with a drainage channel,
At the tip of the second opening exhaust port is provided with a shielding plate that defines the angle at which rainwater pours, and below the water receiving portion that drains rainwater that has entered from the exhaust port out of the package and the shielding plate of the exhaust port. It is a package type compressor characterized in that drainage channels to be formed are connected.
Further, the package type compressor of the present invention includes a compressor main body for generating compressed air, a motor for driving the compressor main body, an electric device for controlling the motor, a heat exchanger for cooling the compressed air and lubricating oil, and Provided with a dryer for removing moisture contained in compressed air, and surrounding these devices with a panel, a housing having an opening communicating with the outside air, and a surface provided at least outside the housing and having a surface having the opening of the housing A waterproof structure that surrounds, the housing includes a first opening on the side of the housing that communicates with the outside air and takes in the outside air, and exhausts that have communicated with the outside air and passed through the heat exchanger to the outside air. A second opening for discharging is provided on the side surface, and a third opening for discharging the exhaust gas that has passed through the dryer in communication with the outside air to the outside air is provided on the top surface, and the waterproof structure includes the second opening portion. Side projection outside and front Together provided on the upper surface outside of the projection plane of the third opening, provided with a drainage channel,
A package type compression characterized in that a water receiving part for discharging the rainwater to the outside of the package and a drainage channel formed by the exhaust port are connected to the third opening side surface projection surface exhaust port. Machine.

In the packaged compressor of the present invention, more preferable specific embodiments are as follows.
(1) Provided toward the inclined water receiving portion disposed below the shielding plate and the second opening that divides a part of the side surface of the exhaust port, and the water receiving portion and the drainage channel are connected.
(2) The straight line connecting the upper end of the shielding plate that divides part of the side surface of the exhaust port and the upper end of the water receiving portion of the second opening is an angle of 60 degrees from the vertical of the shielding plate.
(3) An inclined water receiving part disposed between the upper surface of the exhaust port and the third opening is provided, and the water receiving part and the drainage channel are connected.
(4) The straight line connecting the upper end of the water receiving portion disposed between the upper surface of the exhaust port and the third opening is an angle of 60 degrees from the vertical of the upper surface of the exhaust port.
(5) The rain well provided on the ceiling of the package collects rainwater applied to the side surface of the exhaust port and the upper surface of the exhaust port and discharges it to the outside of the package.
(6) The rain screen well provided on the package ceiling has a double structure so that the rain water gathering portion on the package ceiling is on the atmosphere side, and the pressure in the package does not act on the rain screen well.
(7) Rain water on the front door of the package is drained to the outside of the package by using a trim seal with a cushioning tube to prevent rain water from entering.
(8) The trim seal with a cushioning tube provided on the front door of the package has a double structure so that the seal part is on the atmosphere side and the pressure in the package does not act on the seal part.

According to the present invention, it can be installed outdoors, and the protection degree of waterproofing should not be adversely affected by water sprayed at an angle of up to 60 degrees on both sides from the second characteristic number 3 vertical. Is possible.
Moreover, even if the pressure difference between the atmosphere and the package is about −20 Pa, it is possible to prevent rainwater from entering.

It is a figure which shows the whole structure which excluded the waterproof structure about the package type compressor which concerns on a present Example. It is a figure which shows the whole structure which enforced the waterproof structure about the package type compressor which concerns on a present Example. It is a figure which shows the waterproof structure of an exhaust side surface about the package type compressor which concerns on a present Example. It is a figure which shows the waterproof structure of an exhaust side upper surface about the package type compressor which concerns on a present Example. For packaged compressor according to the present embodiment, and shows the seal structure of the gutter. For packaged compressor according to the present embodiment, and shows the seal structure of the gutter. It is a figure which shows the seal structure of a front door about the package type compressor which concerns on a present Example .

Embodiments of the present invention will be described below with reference to the drawings.
An embodiment of a package compressor according to the present invention will be described with reference to the drawings.
FIG. 1 is a configuration diagram of a package type compressor before mounting a waterproof structure. FIG. 2 is a configuration diagram of the package compressor after the waterproof structure is mounted. The description of FIG. 1 will be described below.

The package type compressor includes a base body 52, a compressor body 40, a motor 41 for driving the compressor body 40, an electric box 41 for controlling the compressor body 40 and the motor, a dryer 6 for removing moisture contained in the compressed air, An air heat exchanger 7 that cools compressed air, a lubricant heat exchanger 8 that cools lubricating oil, and a fan 9 that cools the air in the package and cools the heat exchanger are installed for sound insulation of these devices. Therefore, it is composed of a ceiling casing 50, a side casing 51, a base casing 52, and a door 12.

  The ceiling casing 50 is provided with a dryer exhaust 30 and an exhaust 31 of a package compressor, and the exhaust heat exchanged by the air heat exchanger 7 and the lubricating oil heat exchanger 8 is released to the upper atmosphere. The exhaust 31 of the package compressor is provided with an exhaust partition plate 10 of the package compressor so that it does not leak into the package after heat exchange between the air heat exchanger 7 and the lubricating oil heat exchanger 8. Further, the side casing 51 is provided with a dryer intake air 20, a compressor main body intake air 21, and an intake air 22 for cooling the inside of the package and the heat exchanger at an opening communicating with the inside and outside of the casing.

  When the package-type compressor before the waterproof structure is installed outdoors, rainwater pours into the dryer exhaust 30 and the package-type compressor exhaust 31 provided in the ceiling housing 50, the dryer 6, the lubricant heat exchanger 7, There is a high possibility that the compressor body 40, the motor and the electric box 41 will enter through the air heat exchanger 8 and the fan 9. For this reason, unless a component conforming to the waterproof and water-resistant standards is used, there is a possibility that problems such as rusting may occur due to rainwater. Therefore, it is desirable to install the package type compressor before mounting the waterproof structure indoors.

To solve the previous SL problems, attaching the waterproof structure waterproof before mounting the package type compressor of FIG. Fig. 2 shows the configuration of the package compressor after the waterproof structure is installed. The description of FIG. 2 is described below.

  Fig. 2 shows the installation of a package compressor exhaust duct 3 and a dryer exhaust duct 4 in the ceiling housing 50, which prevents waterproof parts from entering the package even if rainwater falls directly, and recovering and discharging it outside the package compressor. It is attached.

  3 shows that the side casing 51 is provided with an opening that communicates the inside and outside of the casing, and the protection degree of waterproofing is the second characteristic number 3. Even if rainwater sprayed at an angle of 60 degrees from the vertical falls, the shielding plate 1a, Waterproof structure that receives the exhaust duct water receiving part 2 and the side casing 51 of the packaged compressor and discharges it outside the package with the configuration of 1b and 1c (dimensions of L1 and H1 such that θ1 is 60 degrees) Indicates.

  Figure 4 shows an opening that connects the inside and outside of the ceiling housing 50, and the protection degree of waterproofing from the dryer exhaust 30 is the second characteristic number 3. Even if rainwater sprayed at an angle of 60 degrees from the vertical falls, θ2 is 60 A waterproof structure is shown in which the dimensions of L2 and H2 are secured so as to be received and received by the inclined dryer exhaust duct water receiving portion 5 and discharged outside the package.

Figure 5 is provided an exhaust duct 3 and the dryer exhaust duct 4 of the package type compressor to a ceiling housing 50, assembled on the ceiling gutter section 11 when the rainwater poured down the package type compressor exhaust duct 3 and the dryer exhaust The waterproof structure which discharges | emits to the package surface via the inner side of the front of a duct 4 and a back surface is shown. Ceiling gutter section 11, as the ceiling partition plate 1 15a, the ceiling partition plate 2 15b, enclosure ceiling partition plate outer pressure ceiling partition plate 3 15c (negative pressure) does not act on the ceiling gutter section 11, also It shows a waterproof structure rainwater is not drawn from the ceiling rain gutter 11 into the package.

Figure 6 is provided an exhaust duct 3 and the dryer exhaust duct 4 of the package type compressor to a ceiling housing 50, assembled on the ceiling gutter section 11 when the rainwater poured down the package type compressor exhaust duct 3 and the dryer exhaust The waterproof structure which discharges | emits to the package surface via the inner side of the front of a duct 4 and a back surface is shown. Ceiling rain gutter portion 11 is enclosed by a ceiling partition plate 15, as the ceiling partition plate 15 outside the pressure (negative pressure) does not act on the ceiling gutter section 11, also drawn into rainwater package from the ceiling gutter section 11 Not waterproof structure.

  FIG. 7 shows that the side housing 51 has an opening that communicates the inside and outside of the housing, and the opening prevents the intrusion of rainwater inside the front left door 12 and the front left door 12 for inspecting the equipment in the package. . Front left door 12 is provided with front left door trim seals 13a, 13b, 13c with cushioning tubes, and pressure (negative pressure) inside front left door partition plates 14a, 14b, 14c is attached with cushioning tubes A waterproof structure is shown so as not to act on the front left door trim seals 13a, 13b, 13c and not to be pulled into the package.

1a, 1b, 1c ··· Shield plate, 2 ································································· Exhaust duct ························································································································ ... fan, exhaust partition plate of 10 ... package type compressor, 11 ... ceiling rain gutter section, 12 ... front left door, 13a, 13b, 13c ···· front left door Trim seal, 14 ... Front left door partition, 15 ... Ceiling partition, 20 ... Dryer intake, 21 ... Compressor intake, 22 ... Ventilation in the package Intake to cool heat exchanger, 30 ... Dryer exhaust, 31 ... Package compressor exhaust, 40 ... Compressor body, 41 ... Motor Electrical box, 50 ... ceiling housing, 51 ... side casing, 52 ... base casing

Claims (3)

A compressor body that creates compressed air, a motor that drives the compressor body, electrical equipment that controls the motor, a heat exchanger that cools the compressed air and lubricating oil, and a dryer that removes moisture contained in the compressed air The device includes a casing having an opening communicating with outside air and a waterproof structure that is provided outside the casing and surrounds at least a surface having the opening of the casing. A first opening that communicates with the outside air and takes in the outside air is provided on a side surface of the housing, and a second opening that communicates with the outside air and exhausts the exhaust gas that has passed through the heat exchanger is provided on the side surface. A third opening that communicates with the outside air and exhausts the exhaust gas that has passed through the dryer is provided on the top surface, and the waterproof structure includes the second opening and the third opening. Outside the top projection surface Together, comprising a drainage channel,
Wherein the tip of the second opening outlet provided with a shielding plate which defines an angle pouring rainwater, water receiving portion and the front Symbol outlet of the shielding plate for discharging the rainwater that has entered from the exhaust port to outside the package is downwardly A package-type compressor characterized in that a drainage channel formed by is connected. A compressor body that creates compressed air, a motor that drives the compressor body, electrical equipment that controls the motor, a heat exchanger that cools the compressed air and lubricating oil, and a dryer that removes moisture contained in the compressed air The device includes a casing having an opening communicating with outside air and a waterproof structure that is provided outside the casing and surrounds at least a surface having the opening of the casing. A first opening that communicates with the outside air and takes in the outside air is provided on a side surface of the housing, and a second opening that communicates with the outside air and exhausts the exhaust gas that has passed through the heat exchanger is provided on the side surface. The upper surface further includes a third opening that communicates with the outside air and exhausts the exhaust gas that has passed through the dryer to the outside air, and the waterproof structure includes the second opening and the third opening. Provided outside the top projection surface Rutotomoni, equipped with a drainage channel,
Package said third opening side surface projection surface outside exhaust port characterized in that the drainage path formed by the water receiving portion and the front Symbol exhaust port for discharging to the outside of the package that defines the angle pouring rainwater is connected Shape compressor. The package type compressor according to claim 1 or 2 ,
The ceiling housing has a rain gutter,
A partition plate is provided on the inside of the package of the rain gutter part,
The gutter portion and, packaged compressor is characterized in that a drainage channel for discharging to the outside of the package is connected.

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