JP7117176B2 - DRAIN PROCESSING APPARATUS, METHOD THEREOF, DRY AIR PRODUCTION DEVICE, DRAIN PROCESSING SYSTEM - Google Patents

Description

The present invention relates to technology for treating drain generated in gas production.

Dry compressed air is commonly used in various manufacturing industries, for example, as a purge gas, drying gas, carrier gas, and the like. This dry compressed air is generated by compressing atmospheric air with a compressor or the like. Atmospheric air contains water vapor. When air in the atmosphere is pressurized and the pressure rises, the amount of saturated water vapor decreases. Also, the higher the temperature of the air, the greater the amount of saturated water vapor. That is, when pressure is applied to air, the gas component is compressed but the water vapor component is not compressed, and saturated moisture is precipitated. Further, when the compressed air is cooled to a predetermined temperature, water vapor is condensed. The liquid water thus precipitated becomes drain.
It is known that the drain generated in this manner is collected at a predetermined location and discharged, or heated and evaporated.

Regarding drain treatment, it is known to provide a drainage path for discharging condensed water at the bottom of a dehumidifier body having a cooling unit for cooling dry compressed air, for example (see, for example, Patent Document 1). Also, a closed type evaporator is connected to the main body of the compressor that compresses the air, and the drain is stored inside the evaporator at a predetermined water level, and the drain evaporated by this evaporator is discharged through the discharge chimney. Known (for example, Patent Document 2)

JP-A-2016-52611 JP 2017-161177 A

By the way, in the case where the liquid drain is discharged to the drain hole through a drain pipe or the like, it is necessary to design and process the piping according to the arrangement of the equipment, and there is a problem that the installation cost and the installation process are troublesome. Also, if you want to store the generated drainage and dispose of it all at once when the equipment is not in operation, for example, you need to prepare a tank to store the drainage and its piping equipment. However, there is a problem that it takes time and effort to set the timing of drain discharge processing and the discharge work separately.
In addition, when the collected drain is discharged outside the gas production equipment, it is necessary to prevent the equipment installed inside and around the equipment from being affected. In other words, if the liquid drain is injected into the atmosphere, it affects the density and temperature of the air in the equipment, and for example, there is a risk that substances that are not subject to treatment will be mixed in the equipment. Therefore, when the drain is discharged into the atmosphere, it is necessary to perform sufficient treatment.

Patent Documents 1 and 2 do not disclose or suggest such problems, and the structures disclosed in these documents cannot solve such problems.

In view of the above problems, an object of the present invention is to make it possible to discharge and dispose of the drainage generated in the dry air production process regardless of the place of installation.
Another object of the present invention is to sufficiently treat the recovered drainage so as to suppress the influence of the discharged drainage on surrounding equipment.

In order to achieve the above object, one aspect of the drain processing apparatus of the present invention is a drain recovery system that separates compressed air and drain that has flowed in from a dry air production apparatus, recovers the drain, and discharges the compressed air to the outside. means, a drain processing tank which has an open portion whose one end side is open to the outside air and which vaporizes the drain taken in through the drain collecting means, and an end portion side of the drain processing tank opposite to the open portion. a sealing member that is sealed and has a drain collection part that collects drain in a part of the interior of the drain processing tank; an air blower for blowing air toward the drain collecting portion to discharge the vaporized drain to the outside air from the open portion; and the blower at a position inside the drain processing tank facing the drain collecting portion , a temperature sensor for detecting the heating temperature of the drain, and a controller for switching the operation of the heater based on temperature information detected by the temperature sensor.

In the above drain treatment apparatus, the air sent from the blower contacts the wall surface of the sealing member facing the inside of the drain treatment tank, is reflected or diffused, and is discharged from the opening together with the vaporized drain. may be discharged.
In the above drain treatment apparatus, the temperature sensor detects the temperature in the drain treatment tank, the temperature of the heater, or the temperature of two or more of a predetermined position of the sealing member, and the control unit detects the temperature of the detected temperature is less than a reference value, and the heater may be stopped when the detected temperature reaches the reference value or higher .

The above-described drain processing apparatus further comprises a housing including a mounting section, and an elastic support member that maintains and supports a predetermined gap between the mounting section and the sealing member or the drain processing tank. good.
In the above drain processing apparatus, the drain recovery means may include a separation wall that takes in compressed gas containing the drain discharged from the dry air producing apparatus and causes the compressed gas to collide to separate at least the drain.

In order to achieve the above object, one aspect of the dry air production apparatus of the present invention is a dry air production apparatus that separates a specific gas with an adsorbent under a predetermined pressure, and separates the generated drain and compressed air. and a drain recovery means for recovering the drain and discharging the compressed air to the outside, and a drain processing for vaporizing the drain taken in through the drain recovery means. a tank , a sealing member that seals an end portion of the drain processing tank facing the open portion, and has a drain collecting portion that collects drain in a part of the interior of the drain processing tank, and the drain processing. a heater that is installed in the tank and heats at least the inside of the drain collecting portion to a temperature at which the drain is vaporized, and an air blower that blows air toward the drain collecting portion and discharges the vaporized drain to the outside air from the open portion; a supporting member for arranging the blower at a position facing the drain collection part inside the drain processing tank; a temperature sensor for detecting a heating temperature of the drain; and a control unit for switching the operation of
In the above dry air production apparatus, the drain recovery means may include a separation wall that takes in the compressed gas containing the drain and causes the compressed gas to collide to separate at least the drain.

In order to achieve the above object, one aspect of the drain treatment system of the present invention includes a dry air production device that separates a specific gas with an adsorbent under a predetermined pressure, and drain and compressed air generated by the dry air production device. and a drain recovery means for recovering the drain and discharging the compressed air to the outside, and an open portion whose one end side is open to the outside air, for vaporizing the drain taken in through the drain recovery means. a drain processing tank, a sealing member that seals the end portion side of the drain processing tank facing the open portion, and has a drain collecting portion that collects the drain in a part of the inside of the drain processing tank ; a heater for heating the interior of the drain collecting portion to a temperature at which the drain is vaporized; a blower for blowing air toward the drain collecting portion to discharge the vaporized drain from the open portion ; A drain processing apparatus including a support member for arranging the blower at a position facing a collection unit, a temperature sensor for detecting a heating temperature of the drain, and a control unit for switching operation of the heater based on temperature information detected by the temperature sensor. including.
In the above drain treatment system, the drain recovery means may include a separation wall that takes in compressed gas containing the drain discharged from the dry air producing device and causes the compressed gas to collide to separate at least the drain.

In order to achieve the above object, one aspect of the drain processing method of the present invention is to separate generated drain and compressed air, recover the drain and discharge the compressed air to the outside, and into a drain processing tank, a process of collecting the drain with a drain collecting portion formed in a sealing member that seals the end portion side of the drain processing tank facing the open portion, and at least collecting the drain The interior of the unit is heated by a heater to a temperature at which the drain is vaporized, and an air blower arranged at a position facing the drain collecting unit blows air toward the drain collecting unit, and the vaporized drain is removed from the drain processing tank. and a process of switching the operation of the heater based on temperature information detected by a temperature sensor that detects the heating temperature of the drain.

According to the present invention, one of the following effects can be obtained.

(1) Ventilation is blown toward the inside of the drain processing tank, and the drain that has flowed into the drain processing tank is pushed away toward the space or wall surface heated by the heater, so that the drain that has flowed into the drain processing tank becomes liquid. It can be sufficiently vaporized without being discharged to the outside as it is.
(2) In addition, the vaporized drain is flowed to the open side of the drain processing tank by the wind that is reflected by the wall of the drain processing tank or is diffused by contact with the drain processing tank, thereby simplifying the structure and reducing the number of parts. can be reduced.
(3) By measuring the heating temperature of the drain, such as the part that comes into contact with the drain due to air blowing, and controlling the operation of the heater based on this temperature, it is possible to maintain the conditions necessary for the vaporization process of the drain, and the heater Excessive operation can be prevented, and power saving and efficient heat treatment can be realized.

1 is a diagram showing a configuration example of a drain processing device according to a first embodiment; FIG. 6 is a flowchart showing an example of drain processing; FIG. 10 is a diagram showing a configuration example of a drain processing device according to a second embodiment; 2 shows an example of the exterior configuration of a vaporization device. FIG. 2 is an exploded perspective view showing an internal configuration example of a vaporization device; It is a figure which shows the internal structural example which removed the ceiling panel of the vaporization apparatus. FIG. 7 is a diagram showing a cross section taken along the line AA of FIG. 6; A is a diagram showing a configuration example of the surface side of the placing plate, and B is a diagram showing a configuration example of the back side of the placing plate. A is a diagram showing an example of the appearance configuration of the gas-liquid separation device, and B is a diagram showing a partial cross section of A. FIG. 3 shows an example of the configuration of a control device for a drain processing device; 6 is a flowchart showing an example of drain processing; It is a figure which shows the structural example of a dry air production apparatus. It is a block diagram which shows the functional structural example of a dry air production apparatus. It is a figure which shows the structural example of the control part of a dry air production apparatus. 5 is a flowchart showing an example of dry air production processing;

[First embodiment]
FIG. 1 shows a configuration example of a drain processing apparatus according to a first embodiment. The configuration shown in FIG. 1 is an example, and the present invention is not limited to such a configuration.
This drain processing device 2, for example, as shown in FIG. 1, recovers the liquid drain D (L) generated in the dry air production device 4 through a drain pipe 6 and a drain recovery device 8, vaporizes it by heating, and discharges it to the outside. It is an example of means for discharging. The drain processing device 2 may be operated, for example, independently of the dry air production device 4 side, or may be operated in conjunction with the production process of the dry air production device 4 side. This drain processing device 2 may heat at least the inflowing drain D(L) so as to sufficiently vaporize it, and perform vaporization processing.
The dry air production device 4 includes a functional unit that generates compressed air, which is a raw material gas, from air in the atmosphere, a functional unit that generates a gas of a specific component from the compressed air, and the like. Condensation of air generates drain D(L). Compressed air is dehumidified by the generation of this drain D(L). The dry air production apparatus uses, for example, a PSA (Pressure Swing Adsorption) method in which compressed air is caused to flow through an adsorbent at a specific pressure to adsorb gas components to be separated.
The drain pipe 6 is an example of a drainage channel for flowing the drain D(L) generated in the dry air production device 4 to the side of the drain processing device 2, and is connected to a pipe through which the raw material gas in the dry air production device 4 flows, for example. good too. The drain pipe 6 is made of, for example, a resin material such as rubber, or a pipe made of plastic or vinyl chloride. The drain pipe 6 also has a drain recovery device 8 on the drain.
The drain recovery device 8 collects the drain D(L) generated in the dry air production device 4 and flows it to the drain pipe 6 side, and also includes means for separating the compressed air flowing in together with the drain D(L). . Drain recovery device 8 may be installed, for example, inside dry air production device 4 or may be installed outside dry air production device 4 . In addition, the drain recovery device 8 may be provided with a power such as a pump for forcibly discharging the drain D(L) from the dry air production device 4 side, for example.

<Configuration of Drain Processing Device 2>
The drain processing device 2 includes a drain processing tank 10 , a lid portion 14 , a heater 16 , a blower 18 , a sensor 19 and a control device 20 .
The drain processing tank 10 is an example of means for taking in the drain D(L) flowing through the drain pipe 6 and heating and vaporizing it, and a processing space 11 for processing the drain is formed therein. This drain processing tank 10 is, for example, cylindrical. One end of the drain treatment tank 10 has an opening 12 open to the outside, and a lid 14 is installed at the opposite end facing the opening 12 . This opening 12 is an example of an opening according to the present disclosure for discharging drain from the drain processing tank 10 . The drain processing tank 10 is arranged with the opening 12 directed toward the ceiling and the lid 14 directed toward the bottom. The drain processing device 2 has, for example, an external housing, and the drain processing device 10 is housed inside the external housing.
The lid portion 14 is an example of a sealing member that seals the open end on the bottom side of the drain processing tank 10 and is an example of means for heating the drain D(L) in the processing space 11 . The lid portion 14 is, for example, partly or wholly formed to have the same opening diameter as the drain processing tank 10, and is used to remove the drain D(L) in the processing space 11, the compressed air, and the vaporized drain D(A). prevents the passage of A heater 16 is installed on the surface of the lid portion 14 opposite to the surface facing the inside of the processing space 11 . The lid portion 14 conducts the heat of the heater 16 . As a result, the processing space 11 is heated through the surface of the lid portion 14 and the internal temperature rises.
The heater 16 is an example of a heat source that vaporizes the drain D(L). The operation of the heater 16 is controlled by, for example, the control device 20, and ON/OFF control is performed according to the drain processing control. The heater 16 may be, for example, an electric heater.

Inside the drain processing tank 10, there is provided a blower 18 for generating air (Air) for guiding the collected drain D(L) in a predetermined direction. The blower 18 is arranged, for example, in the central portion of the processing space 11 or above it. The blower 18 generates a predetermined flow rate of air toward the inner side of the drain processing tank 10 , that is, toward the wall surface of the lid portion 14 facing the inside of the processing space 11 . Also, the blower 18 has a smaller diameter than the inner diameter of the drain treatment tank 10 . As a result, the air (Air) and the drain D (L) generated from the central side of the drain treatment tank 10 contact, for example, a part of the lid portion 14 located opposite the blower 18, and then contact the lid portion 14. reflected or diffused. At this time, the drain D(L) is heated by contact with the wall surface of the lid portion 14 or by heat around the wall surface, and becomes vaporized drain D(A). Then, the air (Air) and the drain D(A) pass around the blower 18 to rise and are discharged from the opening 12 to the outside.
The drain processing device 2 is provided with a sensor 19 for detecting the heating temperature of the drain. The sensor 19 is installed, for example, on the wall surface of the drain processing tank 10 or the surface of the lid portion 14 . A thermistor thermometer, a thermocouple, or the like is used as the sensor 19, for example. The sensor 19 detects, for example, the temperature in the processing space 11 and the surface temperature of the lid portion 14, and notifies the control device 20 of the detected temperature information.
The control device 20 is an example of means for controlling the drain processing, and controls the operation of the heater 16 and the blower 18 based on temperature information within the drain processing tank 10 .

<About drain processing>
FIG. 2 shows an example of drain processing. The processing procedure and processing contents shown in FIG. 2 are examples, and the present invention is not limited to such a configuration. This drain treatment is an example of the drain treatment method of the present invention.
In the drain process, the drain D(L) is recovered from the dry air production device 4 through the drain pipe 6 and the drain recovery device 8 (S11). The recovered drain D(L) is flowed into the drain treatment tank 10 (S12) and heat-treated (S13). At this time, in the drain processing device 2, the drain D(L) is heated while flowing in a predetermined direction in the drain processing tank 10 by air blowing processing by the blower 18 (S14). Then, the vaporized drain D(A) is discharged together with the air (A) to the outside of the drain processing tank 10 (S15). Further, the controller 20 performs temperature control processing of the heater as state control inside the drain processing tank 10 (S16).

[Effects of the first embodiment]
According to such a configuration, one of the following effects can be expected
(1) The blower 18 blows air toward the interior of the drain processing tank 10 to pass the drain D(L) through the lid portion 14 side, which is a high-temperature region in the processing space 11, so that the drain is efficiently heated. be able to.
(2) The drain D(L) that has flowed into the drain processing tank 10 can be sufficiently vaporized without being discharged to the outside.
(3) Since the inside of the drain processing tank 10 is heated through the lid portion 14 and the drain D(L) is not brought into contact with the heater 16, the structure such as waterproof treatment of the heater is unnecessary and the structure is simplified. can be achieved.
(4) In addition, by bringing the liquid drain D(L) into contact with only one side of the lid portion 14, maintenance processing of deposits and the like caused by vaporization of the drain is facilitated.
(5) By monitoring the temperature of the surface of the lid portion 14 that evaporates the drain D(L) or its peripheral portion and controlling the operation of the heater 16, excessive operation of the heater can be prevented, and power saving and efficiency can be improved. heat treatment can be realized.

[Second Embodiment]
FIG. 3 shows a configuration example of a drain processing apparatus according to the second embodiment. The configuration shown in FIG. 3 is an example.
As shown in FIG. 3, for example, the drain treatment device 30 separates a vaporization device 32 that vaporizes the drain D(L) by heating and the drain D(L) flowing in from the dry air production device 4 and the compressed air. A gas-liquid separator 34 is provided. This vaporization device 32 is connected to a gas-liquid separation device 34 through a drain pipe 6 and takes in only the separated drain D(L). The dry air production device 4 discharges, for example, the drain D(L) generated in the generation of the source gas to the drain processing device 30 side continuously or at predetermined timings together with part of the source gas. The gas-liquid separation device 34 is an example of the drain recovery device of the present disclosure, and flows the drain D(L) discharged from the dry air production device 4 side to the vaporization device 32 side and releases compressed air to the outside. An on-off valve may be provided between the dry air production device 4 and the drain processing device 30, for example, to adjust the drain discharge timing.

<Appearance Configuration of Vaporizer 32>
FIG. 4 shows an external configuration example of a vaporization device.
As shown in FIG. 4, for example, the vaporizer 32 includes side panels 36 that cover the sides, a ceiling panel 38 that covers the ceiling of the apparatus, a front panel 40, and a bottom plate 64 (FIG. 5). The vaporization device 32 has, for example, a rectangular parallelepiped shape or a shape similar thereto. A window portion 42 having a predetermined diameter, for example, is formed in the ceiling panel 38 . The window portion 42 is opened with the same shape and diameter as the processing portion 44 inside the apparatus, and opens the processing portion 44 to the outside. That is, the window portion 42 functions as a discharge portion for discharging the vaporized drain D(A) and air to the outside. The window portion 42 is also provided with a stopper 46 that prevents discharge of, for example, liquid drain D(L) and solid matter in the processing portion 44 . The stopper 46 is formed in a net shape by combining circular, polygonal and linear metal parts so as not to block the flow of the drain D(A) or air and to prevent foreign matters from being discharged.

The front panel 40 includes, for example, a display section 48, a connection terminal section 50, and a power switch 52. As shown in FIG.
The display unit 48 includes, for example, an LCD (Liquid Crystal Display) panel, etc., and displays the operating state of the vaporization device 32 and detected temperature information. In addition, the display unit 48 may display a temperature setting screen for the heater 16, a timer setting screen, and the like.
The connection terminal portion 50 is an example of a hole or a connection terminal for connecting a part to be installed in a power supply device or a control device that operates the vaporization device 32. For example, a through hole for a cable of the power supply device or a fuse installed in a power supply circuit board. Terminals for installing electronic parts etc. are included.
In addition, the front panel 40 may include, for example, an operation section for setting the timing of drain processing, heater temperature setting, timer setting, etc., and a notification section for monitoring and notifying an abnormal state of the vaporizer.

<Internal Configuration of Vaporizer 32>
FIG. 5 is an exploded perspective view showing the internal configuration of the vaporizer 32. As shown in FIG.
In the vaporizer 32, as shown in FIG. 5, for example, a drain processing tank 60 forming a processing section 44 inside an exterior housing, an air blowing fan 70 for blowing air into the processing section 44, and the like are arranged.
The drain processing tank 60 has a hollow cylindrical shape, and has a circular opening 62 in a part of its peripheral wall surface. The opening 62 is an example of a drain inflow hole that allows the drain D(L) to flow into the processing section 44, and the drain pipe connecting portion 56 provided in a portion of the side panel 36 is inserted or connected. The drain pipe connection portion 56 is an example of a pipe connection connector that is connected to the drain pipe 6 arranged on the back side of the side panel 36 and takes in the drain D(L).

A bottom plate 64 on which the drain processing tank 60, the blower fan 70, and other parts are placed is provided on the bottom side of the vaporizer 32 . A mounting plate 66 on which one end side of the drain processing tank 60 is mounted, for example, is installed on the bottom plate 64 via a support member 68 .
The mounting plate 66 is provided with a sealing portion 76 formed to have the same shape and diameter as the opening of the drain processing tank 60, for example. A packing 78 made of a resin material such as rubber or another elastic member is provided on the peripheral surface of the sealing portion 76 . That is, the sealing portion 76 and the packing 78 are an example of the sealing member of the present disclosure that seals the opening on the one end side of the drain processing tank 60 .
A plurality of support leg portions 72 are erected on the upper surface side of the sealing portion 76 for arranging the blower fan 70 at a predetermined height.
In addition, a control device 74 is formed on a portion of the bottom plate 64 on the front panel 40 side.

As shown in FIG. 6, for example, the vaporizer 32 has a drain processing tank 60 housed inside an exterior housing, and a blower fan 70 is arranged in the center of the drain processing tank 60 . A portion of the sealing portion 76 on the mounting plate 66 is arranged inside the drain processing tank 60 . On the front side of the vaporization device 32, for example, a control device 74 is installed, including a power supply device as a power source and a plurality of control boards.

The heater 16 is installed on the mounting plate 66 on the surface opposite to the surface on which the sealing portion 76 is formed, that is, on the surface facing the bottom plate 64, as shown in FIG. Further, the mounting plate 66 is provided with a groove portion 80 having a predetermined depth, for example, in a part of the portion facing the inside of the drain processing tank 60 and facing at least the blower fan 70 . The groove portion 80 is a region that contacts the air blown from the blower fan and stores the drain D(L) that has flowed into the drain processing tank 60 . Further, the mounting plate 66 has the grooves 80 formed in the same position as the heater 16 on the upper and lower surfaces. As a result, the mounting plate 66 transfers heat from the heater 16 to at least the inside of the groove 80, so that the inside of the groove 80 becomes the highest temperature. That is, the groove 80 functions as a processing area that heats the drain D(L) while applying air pressure from the blower fan 70 and discharges the drain that is vaporized by the air reflected or diffused in contact with the groove 80.
At this time, the support member 68 separates the mounting plate 66 from the bottom plate 64 to prevent the heat of the heater 16 from being released to the outside of the vaporizer through the bottom plate 64 . This support member 68 is composed of, for example, a spring or an elastomer.

<Regarding the configuration installed on the mounting plate 66>
On the upper surface side of the mounting plate 66, for example, as shown in FIG. A support leg portion 72 that supports the blower fan 70 is installed, for example, on a sealing portion 76 formed on a portion of the mounting plate 66 . The support legs 72 support the four corners of the blower fan 70, for example. Each support leg 72 is arranged at a predetermined interval in order to pass the air (Air) and vaporized drain D (A) that come into contact with the mounting plate 66 .
8B, a plurality of resistors 82A to 82D are installed as an example of the heater 16 on the back side of the mounting plate 66, and an electric circuit is established between the mounting plate 66 and the power supply terminal 84. is formed. For example, the heater 16 is formed by connecting two resistors of 50 [Ω] in parallel and connecting them in series to form a combined resistance of 50 [Ω]. forming Note that the heater 16 may set the number and arrangement positions of the resistors 82A to 82D according to the heating range of the mounting plate 66, for example.
In addition, the mounting plate 66 is provided with a temperature sensor 86 . This temperature sensor 86 may measure the surface temperature of the rear surface or upper surface of the mounting plate 66 or the internal temperature of the mounting plate 66, for example. The measured temperature information is notified to the control device 74 side.

<Regarding the gas-liquid separator 34>
FIG. 9 shows a configuration example of a gas-liquid separation device. The configuration shown in FIG. 9 is an example.
The gas-liquid separation device 34 includes a gas-liquid separation section 90, a gas discharge pipe 92, a drain discharge pipe 94, a drain pipe 96, and a silencer 98, as shown in FIG. 9A, for example.
The gas-liquid separation unit 90 is an example of means for separating the drain D (L) that has flowed in from the dry air production device 4 side and the compressed air (Air). The gas-liquid separation section 90 has a T-tube structure, for example, as shown in FIG. The separation plate 100 may be, for example, a flat plate surface, or may be provided with a projection projecting toward the introduction part side, a net-like member that blocks passage of liquid, or the like. The gas-liquid separator 90 is connected to a vertically upward gas discharge pipe 92 and a vertically downward drain pipe 94 . As a result, when the flow velocity of the compressed air (air) decreases due to collision with the separation plate 100, the heavy-load liquid drain D (L) flows into the drain discharge pipe 94 under the influence of gravity, and the light-loaded compressed air (air ) rises and flows to the gas discharge pipe 92 side.
The gas exhaust pipe 94 is provided with a silencer 98, which is a silencer, at the downstream exhaust portion. The dry air production device 4 discharges the drain in conjunction with the dry air production process, for example. In the dry air production process, compressed air is supplied at regular intervals. In this way, when the air is discharged with an interval, there is a possibility that a whistle-like discharge sound is generated.

<Regarding the control device 74>
FIG. 10 shows a configuration example of a control device.
The vaporization device 32 is composed of a computer, and as its control device 74, for example, as shown in FIG. Power supply 112 and the like are included.
The processor 102 is an example of arithmetic means, and performs arithmetic processing such as a drain processing program stored in the memory 104 . The processor 102 also outputs a control support for the electrical circuit forming the heater 16 and the blower fan 70 through the I/O 106 based on the temperature detected by the temperature sensor 86 .
The memory 104 functions as a storage area for the drain processing program as well as a work area for programs executed by the processor 102 .
Operation unit 110 includes, for example, power switch 52 for starting or stopping vaporization device 32 and a setting input unit for setting the temperature of heater 16 . Operation unit 110 may be configured by, for example, a touch panel formed integrally with the screen of display unit 48 .

<About drain processing>
FIG. 11 shows an example of drain processing.
The drain processing device 30 separates the drain D(L) from the compressed air (Air) by the gas-liquid separator 34 (S21), and takes only the drain D(L) into the vaporizer 32 . In the vaporizer 32, for example, the heater 16 and the blower fan 70 are turned on in conjunction with the drain discharge process of the dry air production device 4 (S22). The controller 74 acquires the temperature detected by the temperature sensor 86, monitors the evaporation temperature of the drain (S23), and controls the temperature of the heater 16 (S24). In the temperature control of the heater 16, the drain processing temperature in the processing bath is determined based on the temperature of the surface and inside of the mounting plate 66 detected by the temperature sensor 86, for example, and the heater is controlled so that the inside of the processing bath reaches the set temperature. 16 on/off should be controlled. The control device 74 also displays the detected temperature on the display unit 48, for example, to notify the state of the drain processing (S25).

[Effects of Second Embodiment]
According to this embodiment, one of the following effects can be expected.
(1) By sealing the bottom side of the processing tank with the sealing portion 76 and the packing 78, it is possible to prevent insufficiently vaporized drainage from leaking out of the processing tank.
(2) Condensate is stored in the groove 80 formed in the mounting plate 66, and the air from the blower fan 70 is applied to the condensate, so that the condensate can be sufficiently vaporized.
(3) Further, by matching the arrangement position of the groove portion 80 for storing drain with the installation position of the heater 16, the heat of the heater 16 can be efficiently transferred to the drain, and the vaporization process can be performed efficiently. .
(4) By elastically supporting the mounting plate 66 with respect to the bottom plate, which is the external housing, the distance between the bottom plate and the mounting plate 66 can be kept constant.
(5) By elastically supporting the mounting plate 66, even if the vaporizer 32 is subjected to external vibrations, the heater may come into contact with the external housing, or the processing tank 60 may be tilted and drained. can be prevented from flowing out, and the safety of the drain treatment device is improved.
(6) By monitoring the drain vaporization temperature based on the temperature of the mounting plate 66 on which the drain processing tank 60 is installed and judging the temperature inside the drain processing tank from this temperature, a temperature sensor corresponding to high temperatures is used. Appropriate vaporization of drain can be realized without

[Third Embodiment]
FIG. 12 shows a configuration example of a dry air production device. The configuration shown in FIG. 12 is an example, and the present invention is not limited to such a configuration.
The dry air production device 120 is an example of a device that generates a predetermined component gas from a raw material gas, and is an example of a drain processing system that processes drain generated in the dry air production process. This dry air production device 120 includes, for example, as shown in FIG. The vaporization device 32 and the gas-liquid separation device 34 are examples of the previously described drain processing device. The dry air generator 122 is an example of means for separating the specific gas by the PSA method, and includes a casing including a side casing 124 and a mounting portion 126, for example. The dry air generator 122 has a mounting plate 130 installed on a mounting portion 126 via a vibration absorbing device 128, and a source gas generating device 132 for generating compressed air, which is source air, on the mounting plate 130. is installed. The raw material gas generator 132 is provided with a drain pipe 134 connected to a part of the pipeline on the compressed air output side, for example, and connected to the gas-liquid separator 34 side.
In this dry air production device 120, the case where the gas-liquid separation device 34 is installed inside the dry air generation unit 122 has been shown, but the present invention is not limited to this. The gas-liquid separation device 34 may be installed, for example, outside the housing, or a drain processing device integrated with the vaporization device 32 may be formed.
In addition, the dry air generator 122 includes a plurality of tanks 136A to 136C, which are processing tanks for separating specific gas components and buffer tanks for storing the generated gas. The dry air generator 122 also includes a plurality of gas pipes, on-off valves, and the like.

<About the configuration example of the dry air production device 120>
FIG. 13 shows a functional configuration example of a dry air production device. The configuration shown in FIG. 13 is an example.
The dry air production device 120 includes, for example, as shown in FIG. 13, a source gas generation device 132 including a plurality of air filters (AF1, AF2) and air pumps (P1, P2). The raw material gas generator 132 is means for compressing and storing air in the atmosphere, for example, and for flowing it at a predetermined timing, and for example, a compressor may be used. Compressed air supplied from the source gas generator 132 is flowed to the cooling pipe (CC1) side. The compressed air that has passed through the cooling pipe (CC1) is cooled, whereby moisture in the air is condensed and drain D(L) is generated. Compressed air that has been dehumidified by cooling is passed through a gas supply pipe to adsorption tanks (AT1, AT2) that perform gas adsorption treatment. A drain trap (DT1) is provided on the gas supply pipe to dam up the liquid drain D(L) and allow only the compressed air to flow to the tank side. A drain pipe 6, for example, is connected to the drain trap (DT1), and the drain D (L) and part of the compressed air (Air) flow toward the drain separator 34 and vaporizer 32 side. An on-off valve (SV6) is installed on the drain pipe 6 to adjust the drain discharge timing.
In addition, the dry air generator 122 is connected to a branched gas supply path for flowing the raw material gas from the raw material gas generator 132 side to the adsorption tanks (AT1, AT2). An exhaust pipe or the like for discharging the separated exhaust gas is connected. On-off valves SV1, SV2, SV3, and SV4 are installed in these gas pipelines, respectively. As a result, in each of the adsorption tanks (AT1, AT2), a specific gas component is adsorbed while the raw material gas is brought to a predetermined pressure state by the adsorbent contained therein.
In addition, a plurality of gas pipes are connected to the upper cover of the adsorption tanks (AT1, AT2) on the downstream side in the gas flow direction. On-off valves (SV5) are installed in these gas pipes. By controlling the opening and closing of these on-off valves (SV5), the adsorption tanks (AT1, AT2), for example, alternately flow the generated gas to the buffer tank (BT1) side, equalize the internal pressure, and exhaust treatment. The adsorption tanks (AT1, AT2) and the buffer tank (BT1) are composed of tanks 136A-136C.
The dry air generator 122 is provided with an on-off valve (SV6), a gas flow rate measuring means, an oxygen sensor module for measuring oxygen concentration, etc. on the flow path downstream from the buffer tank (BT1) in which the product gas is stored.

In the dry air generation unit 122, in such a configuration, one of the adsorption tanks (AT1, AT2) is supplied with the raw material gas to perform adsorption processing, and the other side performs exhaust of residual gas, regeneration processing of the adsorbent, and the like. . Such adsorption processing and regeneration processing are switched by controlling the open/closed states of a plurality of on-off valves SV1 to SV6 according to instructions from control unit 140, for example. Description of the specific timing of switching control of the on-off valves SV1 to SV6 will be omitted.

<Regarding the control unit 140 of the dry air production device 120>
FIG. 14 shows a configuration example of the control unit of the dry air production device.
The control unit 140 includes, for example, a processor (Processor) 142, a memory 144, a timer 146, an I/O (Input/Output) 148, and the like.
The processor 142 calculates an OS (Operating System) that controls the basic operation of the dry air generation unit 122, and programs that control the operations of the source gas generation device 132 and the on-off valves SV1 to SV6 in the adsorption/regeneration process and the pressure equalization process. It is an example of means.
The memory 144 is an example of a storage unit, and includes a storage area such as a ROM (Read Only Memory) for storing the OS and various programs, and a RAM (Random Access Memory) for executing program arithmetic processing by the processor 142. Contains the processing area.
The timer 146 is an example of means for measuring the processing time of the adsorption/regeneration process, the pressure equalization process, and the like, and may be a hardware timer or a software timer that measures time by executing a program.
The I/O 148 is an example of an external interface of the control unit 140, and may include a signal cable connector or a transmission/reception connector for wireless communication. It is connected to the pumps (P1, P2) constituting the device 132 and the drain processing device 30 including the vaporizer 32, and outputs operation instructions to each device.

<About dry air production process>
FIG. 15 shows an example of the dry air production process. The processing procedure and processing contents shown in FIG. 15 are examples, and the present invention is not limited to such a configuration. This dry air production process is an example of the drain processing method of the present invention.
The dry air production device 120 operates a source gas generation device 132 including, for example, pumps (P1, P2) to generate source air (S31) and supply it to the gas supply pipe. The adsorption tanks (AT1, AT2) take in the raw material gas and perform adsorption/regeneration processing. The regeneration process is a process performed on the side of the tank where the adsorption process is completed, and includes exhausting the unnecessary gas separated from the raw material gas from the tank and exhausting the unnecessary gas adhering to the adsorbent.
The dry air production device 120 also opens and closes the on-off valve (SV6), for example, at a predetermined timing to discharge the drain D (L) separated by the drain trap (DT1) and the compressed air.
The gas-liquid separator 34 separates the drain D(L) discharged from the dry air generator 122 side from the compressed air (S34), flows the drain D(L) to the vaporizer 32 side, and releases the compressed air to the atmosphere. let it release.
Vaporization device 32 turns ON heater 16 and blower in conjunction with drain discharge (S35), for example, based on a control instruction from control unit 140, and exhausts vaporized drain D(A) (S36).

The vaporizer 32 performs ON/OFF control of the heater 16 and the blower fan 70, temperature monitoring processing, etc., in conjunction with, for example, the raw material gas supply timing on the dry air generation unit 122 side and the drain discharge timing of the drain trap (DT1). you can go
Alternatively, vaporization device 32 may be directly controlled by a control instruction from controller 140 of dry air generator 122, for example.

[Effect of the third embodiment]
According to such a configuration, one of the following effects can be expected.
(1) By controlling the operation of the drain processing device 30 based on the operating state of the dry air generator 122 where drain is generated, the operation of the heater 16 and the blower fan 70 is synchronized with the timing of drain discharge. Control can be performed, and wasteful power consumption can be suppressed.
(2) Since the drain generated in the gas generation process can be vaporized and discharged to the outside, there is no need to install a pipe or the like for draining the drain to the set drain outlet. degree of freedom is increased.
(3) By sufficiently heating and vaporizing the drain in the vaporizer 32, the influence of drain discharge on the surrounding environment can be suppressed, and the reliability of the dry air producing apparatus 120 can be improved.

[Other embodiments]
Modifications of the embodiment described above are listed below.
(1) Although the heater 16 heats a part of the mounting plate 66 in the above embodiment, the present invention is not limited to this. The heater 16 may heat the entire inner surface of the processing bath, for example. That is, in the drain processing apparatus, for example, the heater 16 is installed on the entire inner wall surface of the drain processing tank 10 together with the entire one surface side of the mounting plate 66, and even if the entire inside of the processing tank through which the drain D flows is heated. good.

(2) In the above embodiment, the drain processing tank is provided with the opening 12 on the ceiling side, and the lid portion 14 and the mounting plate 66, which are sealing members, are installed on the bottom side. Although the configuration is shown in which the wind is applied to one surface of the plate 66 by the blower 18 and the drain vaporized by the reflected wind is discharged to the opening side, the configuration is not limited to this. The drain treatment tank 10 may be formed horizontally, for example. That is, the drain processing tank 10 may be, for example, a cylinder opening in the left-right direction, with the opening 12 formed at one end and the lid 14 and the mounting plate 66 at the other end. The heater 16 may heat, for example, a portion of the lid portion 14 or the mounting plate 66, or a portion of the drain processing tank 10 arranged downward in the direction of gravity. Then, the blower 18 blows air toward a portion of the lid portion 14 and the mounting plate 66 that are heated by the heater 16 in the drain processing tank 10, for example, to blow air onto the portion of the lid portion 14 and the mounting plate 66. The air reflected by can flow to the opening side together with the vaporized drain.

(3) In the above embodiments, the configuration of the dry air production device or the dry air generation unit is shown as the device for generating drain, but the configuration is not limited to this. Any material may be used as long as it generates a gas of a specific component and drains as a result of the generation of this gas. Gas components thus generated include, for example, oxygen, nitrogen, and carbon dioxide.

As described above, the most preferable embodiment and the like of the present invention have been described. The invention is not limited to the above description. Various modifications and changes are possible for those skilled in the art based on the gist of the invention described in the claims or disclosed in the detailed description. It goes without saying that such modifications and changes are included in the scope of the present invention.

ADVANTAGE OF THE INVENTION The drain processing apparatus of this invention, its method, a dry air production apparatus, and a drain processing system collect|recover the drain which generate|occur|produces in the production|generation process of gas, and it flows into a drain processing tank. In the drain treatment tank, by blowing air from the blower toward the inside, the inflowing drain is brought into contact with the part heated by the heater, and the vaporized drain is led to the opening side according to the flow of this wind. , can sufficiently vaporize the drain and is useful.

2, 30 drain processing device 4, 120 dry air production device 6, 96 drain pipe 8 drain recovery device 10, 60 drain processing tank 11 processing space 12, 62 opening 14 lid 16 heater 18 blower 19 sensor 20 control device 32 vaporization Apparatus 34 gas-liquid separator 36 side panel 38 ceiling panel 40 front panel 42 window section 44 processing section 46 stopper 48 display section 50 connection terminal section 52 power switch 56 drain pipe connection section 64 bottom plate 66 mounting plate 68 support member 70 blower fan 72 support leg 74 control device 76 sealing portion 78 packing 80 groove portion 82A to 82D resistor 84 power supply terminal 86 temperature sensor 90 gas-liquid separator 92 gas discharge pipe 94 drain discharge pipe 98 silencer 100 separation plate 102, 142 processor 104 , 144 memory 106, 148 I/O
110 operation unit 112 power supply 122 dry air generation unit 124 side housing 126 mounting unit 128 vibration absorbing device 130 mounting plate 132 source gas generation device 134 drain pipe 136A to 136C tank 140 control unit 146 timer

Claims (10)

a drain recovery means for separating drain and compressed air flowing in from the dry air production device, recovering the drain and discharging the compressed air to the outside;
a drain processing tank having an open portion open to the outside air at one end thereof for vaporizing the drain taken in through the drain recovery means;
a sealing member that seals the end portion side of the drain processing tank facing the open portion and has a drain collection portion that collects the drain in a part of the inside of the drain processing tank;
a heater installed in the drain processing tank for heating at least the inside of the drain collecting section to a temperature at which the drain is vaporized;
an air blower that blows air toward the drain collection part and discharges the vaporized drain to the outside air from the opening part;
a support member for arranging the blower at a position facing the drain collection part inside the drain treatment tank;
a temperature sensor that detects the heating temperature of the drain;
a control unit that switches the operation of the heater based on the temperature information detected by the temperature sensor;
A drain processing device comprising: The wind sent from the blower comes into contact with the wall surface of the sealing member facing the inside of the drain processing tank, is reflected or diffused, and is discharged from the opening together with the vaporized drain. The drain treatment device according to claim 1. the temperature sensor detects the temperature in the drain processing tank, the temperature of the heater, or the temperature of a predetermined position of the sealing member, or two or more;
2. The controller operates the heater when the detected temperature is less than a reference value, and stops the heater when the detected temperature reaches the reference value or higher. The drain processing device according to . Furthermore, a housing including the placement section,
an elastic support member that maintains and supports a predetermined gap between the mounting portion and the sealing member or the drain processing tank;
The drain treatment device according to any one of claims 1 to 3 , characterized by comprising: 2. The drain recovery means includes a separation wall that takes in the compressed gas containing the drain discharged from the dry air producing device and causes the compressed gas to collide with the compressed gas to separate at least the drain. The drain treatment device according to claim 4 . A dry air production device that separates a specific gas with an adsorbent under a predetermined pressure,
a drain recovery means for separating the generated drain and compressed air, recovering the drain and discharging the compressed air to the outside ;
a drain processing tank having an open portion open to the outside air at one end thereof for vaporizing the drain taken in through the drain recovery means;
a sealing member that seals the end portion side of the drain processing tank facing the open portion and has a drain collection portion that collects the drain in a part of the inside of the drain processing tank;
a heater installed in the drain processing tank for heating at least the inside of the drain collecting section to a temperature at which the drain is vaporized;
an air blower that blows air toward the drain collection part and discharges the vaporized drain to the outside air from the opening part;
a support member for arranging the blower at a position facing the drain collection part inside the drain treatment tank;
a temperature sensor that detects the heating temperature of the drain;
a control unit that switches the operation of the heater based on the temperature information detected by the temperature sensor;
A dry air production device comprising: 7. The dry air producing apparatus according to claim 6 , wherein said drain recovery means includes a separation wall that takes in compressed gas containing said drain and causes said compressed gas to collide to separate at least said drain. A dry air production device that separates a specific gas with an adsorbent under a predetermined pressure;
a drain recovery means for separating the drain generated in the dry air production device from the compressed air, recovering the drain and discharging the compressed air to the outside ;
a drain processing tank for vaporizing the drain taken in through the drain collecting means, the end side of the drain processing tank facing the open portion being sealed; A sealing member having a drain collection part for collecting drain formed in a part of the inside of the drain treatment tank, a heater for heating at least the inside of the drain collection part to a temperature at which the drain is vaporized, and blowing air toward the drain collection part . a blower for discharging the vaporized drain to the outside air from the open portion ; a support member for arranging the blower at a position facing the drain collecting portion inside the drain processing tank; a temperature for detecting a heating temperature of the drain; a drain processing device including a sensor and a controller for switching operation of the heater based on temperature information detected by the temperature sensor;
A drain treatment system comprising: 9. The drain recovery means includes a separation wall that takes in the compressed gas containing the drain discharged from the dry air producing device and causes the compressed gas to collide with the compressed gas to separate at least the drain. A drain treatment system as described. A process of separating the generated drain and compressed air, recovering the drain and releasing the compressed air to the outside ;
a process of taking the collected drain into a drain processing tank;
a process of collecting the drain in a drain collecting portion formed in a sealing member that seals the end portion side of the drain processing tank facing the open portion;
a process of heating at least the inside of the drain collecting portion to a temperature at which the drain is vaporized by a heater;
A process of blowing air toward the drain collecting part with an air blower arranged at a position facing the drain collecting part, and discharging the vaporized drain to the outside air from an opening formed at one end of the drain processing tank;
a process of switching the operation of the heater based on temperature information detected by a temperature sensor that detects the heating temperature of the drain;
A drain processing method comprising:

Images