JP2001162130A - Low dew-point air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a low dew-point air conditioner low in energy consumption. SOLUTION: The atmospheric fluid in a working room 21 is sucked by a blower 35 and dehumidified by a rotor type dehumidifier 32, and the dehumidified fluid is sent to a low dew-point working space 23 in a housing 22 provided in the working room 21. A vacuum suction moving device 26 for vacuum-sucking a workpiece 24 in the low dew-point working space 23 and transferring the workpiece to other place has a vacuum pump 42 in order to generate working fluid for actuating to a vacuum suction head 27 and uses the heated waste gas from the vacuum pump 42 as the heating fluid for regenerating an adsorbent of the dehumidifier 32. In such a way, the heating energy required for regenerating the adsorbent of the dehumidifier 32 is saved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low dew point air conditioner for maintaining an atmosphere in a low dew point working space requiring a low dew point atmosphere at a low dew point.

[0002]

2. Description of the Related Art Unless an object such as a lithium battery is assembled in a low dew point atmosphere, lithium reacts with water vapor to cause defective products. For this reason, assembling of a thing (work) which dislikes moisture, such as a lithium battery, is performed in a low dew point work space 3 in a housing 2 installed in a work room 1 of FIG. The air in the work room 1 is sucked by the blower 4, cooled by the cooler 5, then dehumidified by the dehumidifier 6, and the dehumidified fluid is introduced into the low dew point work space 3 from the low dew point air inlet 7. Is done. Since the low dew point working space 3 does not have an airtight structure, the supplied air leaks into the working room 1. Thus, the work 15 which dislikes moisture, for example, the space 3 for handling a lithium battery is kept at a low dew point.

A dehumidifier 6 for adsorbing moisture in the air in the work room 1 has an adsorption zone 8 for adsorbing moisture in the air to an adsorbent, and heats the moisture adsorbed in the adsorption zone 8 with a heating fluid for regeneration. And a regeneration zone 9 having a regeneration zone 9 for desorbing from the adsorbent in order to obtain a heating fluid for regeneration before entering the regeneration zone 9,
A heat source 10 is required.

In a conventional heat source 10, a boiler 11 is installed, and the air indicated by reference numeral 13 is heated by a regeneration air heater 12 using steam generated from the boiler 11.
The heated regeneration air enters the regeneration zone 9, heats the adsorbent to desorb moisture, and is released into the air via the blower 14. In this prior art, a heat source 10 including a boiler 11 is required in order to obtain regeneration heated air for the dehumidifier 6. Therefore, it is necessary to reduce the amount of heating energy used in the heat source 10 as an energy saving measure.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a low dew point air conditioner which consumes less energy.

[0006]

Means for Solving the Problems The present inventors have intensively studied a low dew point air conditioner with low energy consumption and invented the following device.

The present invention has a moisture removing function for removing moisture in an atmospheric fluid from a work room in which a housing forming a low dew point working space is installed, and the moisture removing function is reproduced by heating. A dehumidifier, a pipe for guiding the atmospheric fluid from the work room to the dehumidifier, and introducing the dehumidified atmospheric fluid from the dehumidifier to the low dew point working space of the housing; ,
A blower that guides the work space through the dehumidifying device to the low dew point work space, and a vacuum pump that sucks the exhaust fluid from the low dew point work space.The heated exhaust fluid discharged from the vacuum pump is A low dew point air conditioner, which is used as a heat source for heating and regeneration of the dehumidifier.

According to the present invention, as shown in FIG. 1 to be described later, an atmospheric fluid from a work room in which a housing is housed, for example, a gas such as air, and water vapor contained in the gas such as air And a fluid containing water, which is a water droplet, is led to a dehumidifier through a pipe line, and the water vapor contained in the atmospheric fluid and the water, which is a water droplet, are removed. The fluid is introduced into the low dew point working space of the housing via a pipe, and the transport of such an ambient fluid is performed by a blower 35 interposed in the pipe. Blower
Although it may be interposed in the pipeline between the work room and the dehumidifier as shown in FIG. 1 described below, in another embodiment of the present invention, the pipe between the dehumidifier and the low dew point working space of the housing is provided. It may be interposed in the road 33.

[0009] The moisture removal function in which the dehumidifier performs dehumidification can be regenerated by supplying a regeneration heating fluid to the dehumidifier. Since the heated exhaust fluid exhausted from the vacuum pump is directly used as it is as a heat regeneration heat source for regenerating a moisture removal function using, for example, an adsorbent of the dehumidifier, a heat source that is a heat regeneration fluid is obtained. The use of heating energy is saved.

The present invention also provides a dehumidifier having an adsorption zone for adsorbing moisture in a fluid to an adsorbent and a regeneration zone for heating the moisture adsorbed in the adsorption zone with a heating fluid to desorb the moisture from the adsorbent. A rotor-type dehumidifier having a rotor which is used by being sequentially divided in a rotational direction around an axis, wherein an atmospheric fluid from a working room is fed into the adsorption zone by the pipe, Atmospheric fluid is supplied to the low dew point working space, and exhaust fluid from the vacuum pump is supplied to the regeneration zone.

According to the present invention, a rotor type dehumidifier is used, and this rotor is driven to rotate, for example, about a horizontal axis, and is used while being sequentially divided into an adsorption zone and a regeneration zone in the rotation direction of the rotor. In the adsorption zone, the moisture in the atmospheric fluid from the working room is adsorbed to the adsorbent and removed to achieve a moisture removal function. To desorb from the adsorbent. That is, the exhaust fluid from the low dew-point working space of the housing is heated and heated by a vacuum pump and directly sent directly to the regeneration zone of the rotor type dehumidifier as shown in FIG. Can be detached. Using the rotating rotor, the water removing function and the regeneration of the function can be continuously performed.

Further, the present invention is characterized in that the dehumidifying device is a rotor type dehumidifying device having a substantially cylindrical rotor having a large number of honeycomb-shaped fluid passage holes in the axial direction.

According to the present invention, since the dehumidifier is of a rotor type having a large number of fluid passage holes in a honeycomb shape in the axial direction, the moisture in the atmospheric fluid in the working room transported through the pipeline by the blower is adsorbed. The water is efficiently adsorbed in the zone, and the water adsorbed by the regeneration heating fluid in the regeneration zone is efficiently desorbed.

The present invention provides (a) a work room, (b) a housing installed in the work room to form a low dew point work space, and (c) a work space provided in the low dew point work space of the housing. A work moving device that is mounted and moved,
(D) a vacuum suction head that is provided in the low dew point working space of the housing and vacuum suctions the work moved by the work moving device; And (e) a low dew point air conditioner, which has a water removing function of removing water in the atmospheric fluid from the work room, and the water removing function is provided. ,
(E2) a dehumidifier that is regenerated by heating; (e2) a conduit that guides the atmospheric fluid from the work room to the dehumidifier and introduces the dehumidified atmospheric fluid from the dehumidifier into the low dew point working space of the housing; A blower that is interposed in the middle of the pipe and guides the atmospheric fluid from the work room through the dehumidifier to the low dew point work space; and (e4) connected to the vacuum suction head to suck the exhaust fluid from the vacuum suction head. A low dew point air conditioner having a vacuum pump and using the heated exhaust fluid discharged from the vacuum pump as a heat source for heat regeneration of the dehumidifier. This is a working device that uses.

The exhaust fluid which is a gas such as moisture and air in the low dew point working space of the housing which is sucked when the work is sucked by the vacuum suction head is heated and heated by a vacuum pump. The exhaust fluid from this vacuum pump may be directly supplied to the dehumidifier as it is as the regeneration heating fluid as shown in FIG. 1, but the exhaust fluid is guided to the regeneration heater as shown in FIG. With this heater for regeneration,
The regeneration fluid, which is a gas such as air, may be indirectly heat-exchanged, heated and heated, and sent to the dehumidifier as the regeneration heating fluid.

The low dew point air conditioner of the present invention can be applied not only to a lithium battery assembly line, but also to a work place for assembling precision machines which dislike moisture.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a system diagram showing an embodiment of a working device in which the present invention is applied to a working room 21 for assembling a lithium battery. The atmosphere in the working room 21 for assembling the lithium battery has a low dew point, for example, -50.
Must be kept at ~ -60 ° C. A housing 22 is installed in the work room 21,
Forms a low dew point working space 23. Housing 22
Is not configured to keep the low dew point working space 23 airtight with high precision, and fluid leaks from the low dew point working space 23 to the space in the work room 21.

In this low dew point work space 2, a plurality of works 24, which are lithium batteries, are mounted on a belt conveyor 25, which is a work moving device, and are moving. A vacuum suction moving device 26 is provided in the low dew point working space 23 so that the work 24 on the belt conveyor 25 can be moved from above the belt conveyor 25 to another place in the low dew point space 23. Can be The vacuum suction moving device 26 has a vacuum suction head 27. The work 24 is sucked by the vacuum suction head 27 of the vacuum suction moving device 26 and moved to another place in the low dew point working space 23.

Atmospheric fluid containing water and air in the work room 21 is led to a rotor type dehumidifier 32 through a pipe 31, and the dehumidifier 32 removes moisture.
The dehumidified atmospheric fluid flows from the pipe 33 to the housing 22.
From the inlet 34 into the low dew point work space 23. A blower 35 is interposed in the conduit 31 and sucks the atmospheric fluid in the work room 21.

A cooler 36 is interposed in the conduit 31 downstream of the blower 35 to cool the atmospheric fluid. The refrigerator 36 is attached to the cooler 36. The refrigerant liquid cooled by the refrigerator 37 is sent to the cooler 36 via the pipe 38, and the refrigerant liquid evaporates in the cooler 36, thereby achieving a cooling effect. The refrigerant vapor is circulated to the refrigerator 37 via the pipe 39 and is liquefied by the refrigerator 37.

By cooling the air sent from the blower 35 by the cooler 36, the relative humidity of the air rises and the dew point can be lowered to, for example, 5 ° C.
Therefore, the adsorption and removal of moisture in the dehumidifier 32 is performed more efficiently. It is not essential to provide a cooler 36 between the blower 35 and the dehumidifier 32.

The vacuum suction head 2 of the vacuum suction moving device 26
7 is connected to a vacuum pump 42 via a conduit 41, so that the exhaust fluid in the low dew point working space 23 of the housing 22 is discharged by the vacuum pump 42, for example, to a vacuum of -50.
Aspirated at 0 mmHg. Therefore, the vacuum suction head 2
The working fluid acting on 7 is generated by suction of the vacuum pump 42. The exhaust fluid sucked from the vacuum suction head 27 is at a normal temperature, for example, and the exhaust fluid is heated and heated by a vacuum pump 42 to, for example, about 100 to about 140 ° C., usually about 130 ° C. Is done. In the embodiment shown in FIG. 1, the exhaust fluid discharged from the vacuum pump 42 to the pipe 43 is directly used as it is for regenerating the moisture removing function of the dehumidifier 32, thereby improving the energy saving effect. Will be able to

The rotor type dehumidifier 32 has a rotor 45. The rotor 45 has a horizontal axis 46, and is driven to rotate about the axis 46 in a rotation direction 47. The rotor 45 has a large number of honeycomb-shaped fluid passage holes in the direction of the axis 46, and the entire outer shape is formed in a substantially cylindrical shape. Partition plates are disposed at both ends of the rotor 45 in the direction of the axis 46,
Thus, the suction zone 48, the regeneration zone 49, and the purge zone 50 are sequentially formed in the rotor 45 in this order along the rotation direction 47.
Suction zone 48 at one end 51 of rotor 45 in direction of axis 46
Atmosphere fluid is introduced from the cooler 36 through the pipe line 31 and passes through a number of fluid passage holes of the rotor 45 in the adsorption zone 48, so that moisture is adsorbed by the adsorbent and the water removing function is achieved. Is done. The atmospheric fluid from which the moisture has been removed is sent from the other end 52 of the rotor 45 in the direction of the axis 46 to the low dew point working space 23 via the above-mentioned conduit 33.

A heating fluid for regeneration is fed to the other end 52 of the rotor 45 from the vacuum pump 42 to the regeneration zone 49 via the pipe 43. When the heating fluid for regeneration passes through many fluid passage holes of the regeneration zone 49 of the rotor 45, the moisture adsorbed in the adsorption zone 48 is desorbed from the adsorbent. The desorbed water-containing fluid is released from the one end 51 of the rotor 45 to the atmosphere through a pipe 53 and a blower 54.

The passage direction of the atmospheric fluid flowing in the adsorption zone 48 of the rotor 45 and the passage direction of the heating fluid for regeneration in the regeneration zone 49 are opposite to each other. Thus, the adsorption and desorption of moisture by the adsorbent of the rotor 45 can be performed efficiently.

A purge zone 50 is provided between the regeneration zone 49 and the adsorption zone 48 along the rotation direction 47 of the rotor 45. In the barge zone 50, a relatively dry room temperature air is blown by a blower, whereby a high-temperature regeneration heating fluid is expelled from the rotor 45 and the rotor 45 is cooled. Thereby, the adsorption efficiency of the adsorption zone 13 can be increased. When the adsorbent returns to the regeneration zone 49 by the rotation of the rotor 45, the adsorbent is regenerated and can be used for a long time. In another embodiment of the present invention, the purge zone 50 may not be provided.

The rotation speed of the rotor 45 is, for example, about 2 to 15 times per hour. As the rotor 45,
For example, (1) a first configuration in which silica gel (adsorbent) is chemically bonded to a support such as ceramic paper, or (2) a second configuration in which lithium chloride is impregnated in laminated activated carbon paper, and in particular, The second configuration is preferable because it is less likely to be adversely affected by impurities contained in the exhaust fluid from the vacuum pump 42. The rotor type dehumidifier 32 is
For example, it is commercially available as a honey rotor (trade name, manufactured by Daikin Industries, Ltd.).

The heating fluid for regeneration from the vacuum pump 42 is
In the regeneration of the adsorbent in the regeneration zone 49 of the rotor 45, a regeneration heater 56 is interposed in the pipe 43 when the amount of heat is insufficient. A heating fluid, for example, steam is supplied to the auxiliary heater 56 from a pipe line 57, whereby the regeneration heating fluid from the vacuum pump 42 is heated and heated.
5, the reproduction function is efficiently achieved. In another embodiment of the present invention, auxiliary heater 56 includes vacuum pump 42
Instead of the above-described configuration in which the regeneration heating fluid is heated by steam as described above, a configuration in which the regeneration fluid is heated by an electric heater may be used, or another configuration may be used.

When the exhaust amount of the vacuum pump 42 is small, a fluid such as air may be additionally joined to the pipeline 43 from the blower 58.

FIG. 2 is a system diagram showing a working device according to another embodiment of the present invention. This embodiment is similar to the above-described embodiment, and corresponding parts are denoted by the same reference numerals. It should be noted that in this embodiment, the vacuum pump 4
The regeneration heating fluid from 2 is guided to the regeneration heater 61, which heats a gas such as air supplied from the pipe 62. The gas from the pipe 62 is heated and heated by the regeneration heater 61, and is sent from the pipe 63 to the regeneration zone 49 of the regeneration zone 32 of the rotor-type dehumidifier 32. The heating fluid supplied from the vacuum pump 42 to the regeneration heater 61 via the pipe 43 is radiated to the atmosphere from the pipe 64. Therefore, in the embodiment shown in FIG. 2, the fluid from the vacuum pump 42 is not used for regeneration of the rotor 45 as it is. Therefore, even if the exhaust fluid exhausted from the vacuum pump 42 contains oil or the like, the dehumidifier 3
The dehumidifier 32 is not supplied to the second rotor 45, and the adsorption capacity of the dehumidifier 32 does not decrease. Other configurations are the same as those of the above-described embodiment of FIG. The oil mixed with the exhaust fluid from the vacuum pump 42 is
Or fine particles of the lubricating oil used in the above.

As the vacuum pump 42, various other types of vacuum pumps such as a screw type and a blower type can be used.

The dehumidifier 42 has a rotor-type structure in which the rotor can be rotated and used continuously as described above, and in another embodiment of the present invention, a plurality (for example, two) of adsorbents are filled. And a switching valve may be used to regenerate the other column when one column is adsorbing. For heating the fluid that regenerates the adsorbent in this regeneration tower,
The heated exhaust gas from the vacuum pump 42 is directly used as it is, or when the calorific value is insufficient, the regeneration air heater 56 is used.
(Refer to FIG. 1) and can be used by further heating, and a vacuum pump 4 is used by using a regeneration heater 61 shown in FIG.
The exhaust fluid from 2 can be used to heat a gas such as clean air and used for regeneration.

FIGS. 1 and 2 each show an embodiment adapted to a lithium battery assembling work room. In another embodiment, the work atmosphere is set in another work room in which the working atmosphere must be kept at a low dew point. Can also be applied.

In each of the above-described embodiments of the present invention, a working fluid is generated for the vacuum suction head 27 of the vacuum suction moving device 26 in the low dew point working space 23 for circulating and supplying a fluid such as dehumidified air. Although the heated exhaust gas discharged from the vacuum pump 42 is used for the heating fluid for regeneration of the adsorbent, in another embodiment of the present invention, a plurality of low dew point working spaces 23 are provided. , Each low dew point working space 23
Work moving device 25, vacuum suction moving device 2 corresponding to each
6. A combination of a dehumidifier 32, blowers 35 and 54, a cooler 36, a vacuum pump 42, and the like is provided. For the dehumidifier 32 corresponding to one low dew point workspace 23, another low dew point workspace is provided. It is also possible to use the exhaust fluid of the vacuum pump 42 for generating the working fluid of the vacuum suction moving device 26 in combination 23 or alone or as a heating fluid for regeneration of the adsorbent.

[0035]

As described above, according to the present invention, since the heated exhaust gas from the vacuum pump is used for the regeneration of the adsorbent of the dehumidifier, the energy consumption of the low dew point air conditioner can be saved. it can. The exhaust fluid from the vacuum pump is directly used as the regeneration heating fluid in the dehumidifier as it is, thereby effectively utilizing the heat of the regeneration heating fluid heated by the vacuum pump and efficiently regenerating the dehumidifier. Can be used.

Further, according to the present invention, the dehumidifier is of a rotor type, and can continuously perform a moisture removing function and a regenerating function. The exhaust fluid from the vacuum pump is supplied to the regenerating zone to improve the efficiency. Well play function can be achieved.

Further, according to the present invention, the rotor has a large number of honeycomb-shaped fluid passage holes in the axial direction, and the rotor is rotated to perform a continuous water removing function and to continuously perform regeneration. Can be.

Further, according to the present invention, a working device is realized using the above-described low dew point air conditioner, and a vacuum pump for obtaining a working fluid by a vacuum suction head of a vacuum suction moving device in a low dew point space. The heat of the exhaust fluid can be effectively used and used for the regeneration of the dehumidifying device, thereby improving the energy saving effect.

[Brief description of the drawings]

FIG. 1 is a system diagram of a working device using a low dew point spatial harmony device according to an embodiment of the present invention.

FIG. 2 is a system diagram of a working device including a low dew point air conditioner according to another embodiment of the present invention.

FIG. 3 is a system diagram of a working device using a conventional low dew point air conditioner.

[Explanation of symbols]

 Reference Signs List 21 work room 22 housing 23 low dew point work space 24 work 25 work moving device 26 vacuum suction moving device 27 vacuum suction head 32 dehumidifying device 34 low dew point air inlet 35, 54, 58 blower 42 vacuum pump 48 adsorption zone 49 regeneration zone 56 Auxiliary heater 61 Regeneration heater

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Hideki Hayami 4-1-2, Hirano-cho, Chuo-ku, Osaka-shi, Osaka F-term in Osaka Gas Co., Ltd. 3L053 BC03 BC09 4D052 AA08 BA04 CB00 DA01 DA06 DB01 DB04 FA04 FA05 GA01 GA03 GB03 GB04 GB09 HA01 HA14 HA21 HB02

Claims (4)

[Claims] 1. A dehumidifier having a moisture removing function for removing moisture in an atmospheric fluid from a work room in which a housing forming a low dew point working space is installed, wherein the moisture removing function is regenerated by heating. And a conduit for guiding the atmospheric fluid from the working room to the dehumidifier and introducing the dehumidified atmospheric fluid from the dehumidifier into the low dew point working space of the housing. A blower that guides the room through the dehumidifying device to the low dew point working space, and a vacuum pump that sucks the exhaust fluid from the low dew point working space, and heats the exhaust fluid discharged from the vacuum pump, A low dew point air conditioner used as a heat source for heating and regeneration of the dehumidifier. 2. A dehumidifier comprises: an adsorption zone for adsorbing moisture in a fluid to an adsorbent; and a regeneration zone for heating and desorbing the moisture adsorbed in the adsorption zone from the adsorbent by heating with a heating fluid. A rotor type dehumidifier having a rotor that is used by being sequentially divided in the rotation direction, wherein an atmospheric fluid from the working room is sent to the adsorption zone by the pipeline, and an atmospheric fluid from the adsorption zone is The low dew point air conditioner according to claim 1, wherein the air is sent to the low dew point working space, and the exhaust fluid from the vacuum pump is sent to the regeneration zone. 3. The low dew point air conditioner according to claim 2, wherein the dehumidifier is a rotor type dehumidifier having a substantially cylindrical rotor having a large number of honeycomb fluid passage holes in the axial direction. apparatus. (A) a work room; (b) a housing installed in the work room to form a low dew point work space; and (c) a work space provided in the low dew point work space of the housing. (D) a vacuum suction head provided in a low dew point working space of the housing and vacuum-sucking the work moved by the work movement device, wherein the work is moved by the vacuum suction head. (E) a low-dew-point air conditioner, which has a moisture removal function of removing moisture in the atmospheric fluid from the work room. (E2) guides the atmospheric fluid from the work room to the dehumidifier, and converts the dehumidified atmospheric fluid from the dehumidifier into a dehumidifier. (E3) a blower introduced into the low dew point work space of the jing; and (e3) a blower interposed in the middle of the pipe to guide the atmospheric fluid from the work room through the dehumidifier to the low dew point work space; A vacuum pump that is connected to the suction head and sucks the exhaust fluid from the vacuum suction head, and uses the heated exhaust fluid discharged from the vacuum pump as a heat source for heating and regeneration of the dehumidifier; An operation device using a low dew point air conditioner, comprising: an air conditioner.