KR101904250B1 - Deacidification method of library materials usingdeacidifiable apparatus - Google Patents

Abstract

The present invention relates to a deacidification method for papers using a paper deacidification apparatus. The deacidification method for papers comprises: an atmospheric pressure maintaining step for turning a pressure inside a chamber into an atmospheric pressure; a deacidifying liquid supply step for supplying a deacidifying liquid to the chamber; a first recovery step for recovering the deacidifying liquid supplied to the chamber; and a second recovery step for recovering the deacidifying liquid permeated in papers stored in the chamber. The present invention may prevent the chamber from overheating or overcooling during a process of deacidifying the papers, thereby preventing in advance safety-related accidents from happening.

Description

[0001] DEACIDIFICATION METHOD OF LIBERARY MATERIALS USING DEACIDIFIABLE APPARATUS [0002]

The present invention relates to a document deoxidation method using a document deoxidation apparatus, and more particularly, to a document deoxidation method for deoxidizing an acidified document by circulating a deoxidized solution continuously for a predetermined time after immersing the acidified document in a chamber storing a deoxidized liquid To a document deoxidation method using a deoxidation apparatus.

Generally, in a library, a government office, an educational institution, a media institution, a document archive, etc. where a variety of books, magazines, newspapers, and recorded documents are stored, In particular, research is being conducted to prevent old documents or important documents from being altered in the current state.

Causes of deterioration of the document over time include, for example, the fact that the material of the paper making up the document is made of fibers that are susceptible to deterioration, and that foreign matter is necessarily contained in the process of manufacturing the paper, Artificial light, exposure to microorganisms or bacteria, and the like.

Among them, the main reason that the fibrous paper is altered is the acidification by the acidic substance contained in the fibrous material, and the fibrous structure of the paper is destroyed by this acidification, so that it can be easily changed or discolored.

Therefore, in recent years, a document deoxidation apparatus has been developed and used to prevent acidification of a document by using a deoxidized solution. Korean Patent Registration No. 10-0817032 discloses a document deoxidation apparatus filed and registered by the present applicant.

The document deoxidation apparatus has a structure in which the deoxidized liquid introduced into the chamber is recovered and reused due to the high deoxidized liquid. That is, the temperature in the chamber is maintained under a condition that the deoxidized liquid is vaporized, and the deoxidized liquid in the gaseous state is condensed and recovered by using the recovery unit.

However, the conventional document deoxidation apparatus has a disadvantage in that the drying efficiency of the chamber is lowered in the process of drying the chamber to recover the deoxidized liquid remaining in the chamber.

As a result, there is a problem that the deoxidized liquid impregnated into the document or the deoxidized liquid remaining in the chamber can not be vaporized smoothly, and consequently, the recovery rate of the deoxidized liquid drops.

However, since the document deoxidation apparatus is not precise in controlling the temperature in the chamber, it has been difficult to keep the temperature in the chamber at a predetermined temperature, and furthermore, a safety accident caused by overheating or cooling of the chamber There is a problem in that a safety accident due to overheating or cooling of the apparatus may occur because the safety means is not provided.

In addition, if the temperature of the chamber falls below a preset temperature, the rate of vaporization of the deoxidized liquid is reduced, and thus the recovery rate of the deoxidized liquid is remarkably reduced, thereby increasing the cost of deoxidizing the document.

SUMMARY OF THE INVENTION The present invention provides a document de-oxidation method using a document de-oxidation apparatus configured to easily control a temperature of a chamber in which a document and a de-oxidized solution are stored, and to increase a recovery rate of de- .

The present invention provides a printing apparatus comprising: a chamber for accommodating a cartridge in which a document is housed; A deoxygenating tank storing a deoxidizing solution to be supplied to the chamber; A pump provided on a supply passage connecting the deacid solution tank and the chamber to supply a deoxidized solution stored in the deacidified solution tank to the chamber; A housing provided with an inlet port and a discharge port communicably connected to the chamber, a heater provided at the discharge port side of the housing to supply hot air to the chamber, and a deoxidizing liquid evaporated by the heater at the inlet side of the housing, A recovery unit configured by a circulation fan provided between the evaporator and the heater; A convection fan for diffusing the hot air supplied to the chamber by the heater of the collection unit; A temperature sensor unit for sensing a temperature of the recovery unit; A chamber temperature sensor for sensing an internal temperature of the chamber; And a controller receiving the temperature value sensed by the temperature sensor unit and the chamber temperature sensor and controlling operation of the recovery unit or the pump, the document deoxidization method comprising: An atmospheric pressure maintaining step of forming a pressure at atmospheric pressure; A deacidifying liquid supplying step of supplying a deoxidizing liquid to the chamber; A first recovery step of recovering the deoxidized liquid supplied to the chamber; And a second collecting step of collecting the deoxidized liquid on the document stored in the chamber, wherein the second collecting step (S40) comprises a collecting step of collecting the vaporized deoxidized liquid using the circulating fan A drying step (S42) of supplying hot air to the chamber using the heater, and a condensing step (S43) of condensing gaseous deacidified liquid collected in the collecting step using the evaporator can do.

Also, in the atmospheric pressure maintaining step, the solenoid valve provided in the air vent of the chamber is opened to exhaust the inner space formed in the inner space of the chamber to the outside, thereby forming the inner space of the chamber at atmospheric pressure.

Further, in the deacidified liquid supply step, the deoxidized liquid stored in the deacidified liquid tank can be pumped by operating the pump with the first valve provided in the supply path opened.

The second collecting step may further include a diffusing step of diffusing the hot air supplied to the chamber into the inner space of the chamber by operating the convection fan.

The circulation step may be performed before the atmospheric pressure holding step and after the second collecting step, and the circulating step may be performed after the at least one of the first The pump can be operated in a state in which the valve is shut off and the fourth valve provided in the circulating flow passage connecting the deacidified liquid tank and the supply flow passage is opened.

Also, the document deoxidation method using a document deoxidation apparatus may include a step of comparing and analyzing a temperature value transmitted from the temperature sensor unit and a temperature value transmitted from the chamber temperature sensor to detect the temperature of the collecting unit and the temperature state of the chamber in real time And a sensing step of sensing the position of the object.

The document deoxidation method using a document deoxidation apparatus according to an embodiment of the present invention can prevent a safety accident by preventing the chamber from being overcooled or overheated in the process of deoxidizing a document.

Also, the document deoxidation method using the document deoxidation apparatus according to an embodiment of the present invention can confirm the abnormality of the evaporator, the heater, and the circulation fan in real time by a plurality of sensors during deoxidization of the document, Or overheating of the deoxidized liquid can be prevented, thereby increasing the recovery rate of the deoxidized liquid.

Also, the document deoxidation method using the document deoxidation apparatus according to an embodiment of the present invention can increase the recovery rate of the deoxidized solution remaining in the chamber by using the convection fan.

Also, the document deoxidation method using the document deoxidation apparatus according to an embodiment of the present invention can prevent the deoxidized liquid stored in the deoxidation tank from being settled.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a configuration of a document deoxidation apparatus according to an embodiment of the present invention; FIG.
2 is a cross-sectional view showing the configuration of a recovery unit according to an embodiment of the present invention shown in FIG. 1;
3 is a perspective view of a cartridge according to an embodiment of the invention.
FIG. 4 is a flowchart of a document skimming method using a document de-duplication apparatus according to an embodiment of the present invention. FIG.
FIG. 5 is a flowchart showing a detailed procedure of a second collecting step according to an embodiment of the present invention; FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings.

It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

Hereinafter, a document deoxidation method using a document deoxidation apparatus according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 5. FIG. In describing the present invention, a detailed description of known functions and configurations incorporated herein will be omitted so as not to obscure the gist of the invention.

FIG. 1 is a view schematically showing a configuration of a document deoxidation apparatus according to an embodiment of the present invention, FIG. 2 is a sectional view showing a configuration of a recovery unit according to an embodiment of the present invention shown in FIG. 1, FIG. 4 is a flowchart of a document de-skimming method using a document de-duplication apparatus according to an embodiment of the present invention, and FIG. 5 is a flowchart And a detailed flowchart of the recovery step.

The document deoxidation method using document deoxidation apparatus according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3. FIG.

1 to 3, a document deoxidation apparatus 100 according to an embodiment of the present invention includes a chamber 110 for accommodating a cartridge 200 accommodating a document, A deoxygenating tank 120 storing a deoxidizing solution to be supplied to the deoxidation tank 120; a pump P supplying deoxidized solution stored in the deoxidation tank 120 to the chamber 110; and a deoxidizing solution supplied to the chamber 110 And a recovery unit 140 for recovery.

The chamber 110 may be provided inside a main body (not shown), and a deoxidized liquid stored in the deacidified liquid tank 120 and a space portion capable of accommodating the cartridge 200 are formed. For example, the body may have a rectangular shape, and may receive the deoxygenating tank 120, the pump P, and the collecting unit 140. An opening / closing door for opening / closing the space formed by the chamber 110 to / from the outside may be provided on the upper portion of the main body in a rotating manner.

An overflow 110a may be provided at one side of the chamber 110 to discharge the deoxidized liquid supplied when the deoxidized liquid supplied from the deoxidized liquid tank 120 is supplied by a predetermined amount or more have.

In addition, an injection hole 110b through which deacidified liquid stored in the deacidified liquid tank 120 is supplied may be provided on the other side of the chamber 110. [ The inlet 110b may be connected to the deoxygenating tank 120 through a supply passage 10 and may be connected to the deoxidation tank 120 through the chamber 110 A first valve (V1) for controlling the amount of deoxidized liquid is provided.

In addition, an outlet 110c through which the deoxidizing solution stored in the chamber 110 can be discharged may be provided in the lower portion of the chamber 110. [ The outlet 110c is connected to the deoxygenating tank 120 through a first recovery passage 20 and the amount of deoxidizing solution discharged from the chamber 110 is stored in the first recovery passage 20 A second valve (V2) for controlling the second valve (V2) is provided.

The overflow 110a may be connected to the deoxidizing liquid tank 120 through the second recovery flow path 30 and may be connected to the second recovery flow path 30 through the overflow 110a A third valve (V3) for controlling the amount of deoxidized liquid is provided.

The deacidified liquid tank 120 may be disposed on the bottom surface of the main body, and may be provided in the form of a closed container to store the deoxidized liquid in a hermetic state.

The deoxygenating tank 120 can supply the deoxidized liquid to the chamber 110 through the pump P and supply deoxidized liquid supplied to the chamber 110 to the first Can be delivered again through the recovery flow path (20), the second recovery flow path (30) and the collection unit (140).

The deoxidized liquid tank 120 is provided at its bottom with a discharge port 120a through which the deoxidized liquid is discharged. The discharge port 120a is connected to the inlet 110b of the chamber 110 through the supply passage 10. [ ). Therefore, the deoxidized liquid discharged from the discharge port 120a can flow into the internal space of the chamber 110 sequentially through the supply passage 10 and the injection port 110b.

 The pump P pumps the deoxidized liquid stored in the deacidified liquid tank 120 and supplies the deoxidized liquid to the chamber 110. That is, the deoxidized liquid discharged from the deacidified liquid tank 120 is allowed to flow to the chamber 110 side through the supply passage 10.

The pump P may be provided with a flow rate sensing sensor 11 for sensing a flow state of deoxidized liquid supplied to the chamber 110 through the supply flow channel 10. The flow rate of the deoxidized liquid can be transmitted to the control unit 160 to be described later so that the controller 160 can detect the abnormality of the pump P through the flow rate detection sensor 11, Can be confirmed.

The document deoxidation apparatus 100 according to an embodiment of the present invention may further include a circulation flow path 40 connecting the deoxygenation tank 120 and the supply passage 10 in a communicable manner.

The circulation flow path 40 cooperates with the pump P and the supply flow path 10 so that the magnesium oxide of the deoxygenation solution stored in the deoxidation solution tank 120 is precipitated at the bottom of the deoxidation solution tank 120 And one end thereof may be connected to the deoxidizing liquid tank 120 and the other end may be connected to the supply passage 10 disposed between the pump P and the first valve V1.

The deoxygenating liquid discharged from the deacidifying liquid tank 120 flows through the supply path 10 and the circulating path 40 sequentially through the operation of the pump P, Lt; / RTI >

The fourth valve V4 may be provided in the circulation passage 40 to control the amount of deoxidizing solution flowing through the circulation passage 40 by controlling the fourth valve V4 .

2, the recovery unit 140 includes a housing 141 having an inlet 141a and a discharge opening 141b formed on both sides in the longitudinal direction of the housing 141 and an outlet 141b on the side of the outlet 141b of the housing 141 An evaporator 143 provided at the inlet 141a of the housing 141 to condense the deoxidized liquid evaporated by the heater 142, And a circulation fan 144 provided inside the housing 141.

The recovery unit 140 is operated after the deoxidized liquid supplied to the chamber 110 is discharged to the deoxygenation tank 120 through the first recovery channel 20 or the second recovery channel 30 . That is, the recovery unit 140 collects the deoxidized solution impregnated into the document or the deoxidized solution remaining in the chamber 110 in a gaseous state, condenses it into a liquid state, and supplies the deoxidized solution to the deacidified liquid tank 120 do.

The inlet 141a of the housing 141 is connected to the chamber 110 through a collecting flow passage 50. The evaporation of the evaporation gas in the chamber 110 by the operation of the circulation fan 144, Deoxidized liquid can be collected at the inlet 141a of the housing 141 through the collecting passage 50. [

The gaseous deoxidized liquid collected at the inlet 141a of the housing 141 is condensed by the evaporator 143 and may be introduced into a recovery port 141c provided at the lower portion of the housing 141. [ The deodorant liquid condensed by the evaporator 143 is supplied to the deoxidizing liquid tank 120 through the third recovery flow path 70, And may be recovered to the deacidifying liquid tank 120 through the recovery port 141c and the third recovery flow path 70 in order. For reference, the evaporator 143 can receive refrigerant from a conventional cooler 145 including a compressor, a condenser, a cooling fan, and the like.

The discharge port 141b of the housing 141 is connected to the chamber 110 through the drying channel 60 so that the hot air generated by the heater 142 provided at the discharge port 141b is discharged to the drying And may be introduced into the chamber 110 through the flow path 60. Therefore, it is possible to prevent the chamber 110 from being cooled by the heat of vaporization in the process of vaporizing the deoxidized liquid impregnated into the document or evaporating the deoxidized liquid remaining in the chamber 110, It can be doubled.

Meanwhile, the document deoxidation apparatus 100 according to an embodiment of the present invention may further include a convection fan 112 for diffusing hot air supplied by the heater 142. The convection fan 112 diffuses the hot air supplied to the chamber 110 to further prevent the temperature of the chamber 110 from being rapidly cooled. The convection fan 112 also functions to evaporate the deoxidized solution impregnated into the document It also plays a role of doubling. That is, the hot air generated by the heater 142 is discharged only to one side of the inner space of the chamber 110 through the drying channel 60, but the convection fan 112 is operated so that hot air flows through the entire inner space of the chamber 110 As shown in FIG. The convection fan 112 is preferably provided on the bottom surface of an opening / closing door (not shown) that opens or closes the upper portion of the chamber 110, but is not limited thereto. .

Since the deoxidized liquid supplied to the chamber 110 has a high volatility, the temperature of the chamber 110 drops sharply during vaporization. At this time, when the temperature of the chamber 110 is lowered, the chamber 110 can not maintain a temperature condition suitable for deacidification to vaporize, so that there is a problem that the recovery rate of the deoxidized liquid is lowered.

Therefore, it is preferable to keep the temperature of the chamber 110 constant by the hot air generated by the heater 142, on condition that the deoxidized liquid vaporizes.

In addition, the chamber 110 may be provided with a chamber temperature sensor 111 for sensing an internal temperature. The chamber temperature sensor 111 senses the temperature inside the chamber 110 which is variable by the collection unit 140 in real time and can transmit the temperature value to a controller 160 to be described later.

Meanwhile, the recovery unit 140 may include a temperature sensor unit 150. 2, the temperature sensor unit 150 includes a first temperature sensor 151 for sensing the temperature of the inlet 141a of the housing 141, A second temperature sensor 152 disposed on the side of the discharge port 141b of the housing 141 to sense the temperature of the evaporator 143 and a second temperature sensor 152 disposed on the discharge port 141b of the housing 141, A third temperature sensor 153 disposed on the side of the housing 153 to sense the temperature of the heater 143 and a fourth temperature sensor 153 disposed on the side of the discharge port 141b of the housing 153, have.

The temperature sensor unit 150 configured as described above can transmit the temperatures of the inlet 141a and the outlet 141b of the housing 141 to the controller 160, And the temperature of the evaporator 143, respectively.

The control unit 160 controls the temperature of the recovery unit 140 sensed by the temperature sensor unit 150 and the temperature of the interior of the chamber 110 sensed by the chamber temperature sensor 111, The evaporator 143 and the circulation fan 144 of the recovery unit 140 and the operation of the cooler 145 and the pump P can be controlled.

That is, when the internal temperature of the chamber 110 falls below the set value or rises above the set value, the controller 160 cuts off the power supplied to the recovery unit 140 and the pump P, It can be stopped. The control unit 160 is connected to the power recovery unit (not shown) that supplies power to the recovery unit 140, the cooler 145, and the pump.

The control unit 160 generates an alarm signal when the internal temperature of the chamber 110 falls below a predetermined value (for example, 20 degrees or less) or rises to a predetermined value or more (for example, 36 degrees or more) . At this time, the main body accommodating the chamber 110 may be provided with a buzzer or an alarm lamp for receiving an alarm signal from the controller 160.

The controller 160 receives the temperature of the evaporator 143 from the second temperature sensor 152 of the temperature sensor unit 150 to determine whether the evaporator 143 is abnormal, The temperature of the heater 142 may be received from the third temperature sensor 153 to determine whether the heater 142 is abnormal.

The control unit 160 receives the temperature of the inlet port 141a of the housing 110 from the first temperature sensor 151 of the temperature sensor unit 150 to determine whether the evaporator 143 is abnormal . That is, the first temperature sensor 151 of the temperature sensor unit 150 detects the temperature of the evaporator 143 when the second temperature sensor 152 detects a malfunction, 143). ≪ / RTI >

In other words, when the temperature of the evaporator 143 sensed by the second temperature sensor 152 is maintained at the set value, the control unit 160 determines that the amount of deoxidized liquid stored in the deoxidized liquid tank 120 It is determined that a problem has occurred in the second temperature sensor 152 and the abnormality of the evaporator 143 can be determined based on the temperature value provided from the first temperature sensor 151 have.

The level sensor 121 senses the level of deacidified liquid stored in the deacidified liquid tank 120 from the level of the deacidified liquid stored in the deacidified liquid tank 120, (160).

The controller 160 compares the level value transmitted from the level voucher 121 with the temperature value transmitted by the first temperature sensor 151 and outputs the comparison result to the second temperature sensor 152 or the evaporator 143) can be determined.

The control unit 160 receives the temperature of the discharge port 141b of the housing 110 from the fourth temperature sensor 154 of the temperature sensor unit 150 to determine whether the heater 142 is abnormal . That is, the fourth temperature sensor 154 of the temperature sensor unit 150 detects the temperature of the heater 142 when the third temperature sensor 153 senses the temperature of the heater 142, Can be used as another means of gauging the temperature of the reactor.

In other words, if the temperature of the chamber 110 is lower than the set value even though the temperature of the heater 142 sensed by the third temperature sensor 153 maintains the set value, the third temperature sensor 153 It is possible to determine whether or not the heater 142 is abnormal based on the temperature value provided from the fourth temperature sensor 154. [

The control unit 160 compares the temperature of the gas flowing into the inlet 141a of the housing 141 and the temperature of the gas discharged to the outlet 141b to determine the operating state of the collecting unit 140 Can be determined. That is, the first temperature sensor 151 and the fourth temperature sensor 154 determine whether the set high temperature air is discharged to the discharge port 141b, and the discharged air is thermally sensed and flowing through the inlet 141a. . ≪ / RTI >

The inlet 141a and the outlet 141b of the housing 141 may be provided with a differential pressure sensor 155 for checking whether the circulation fan 144 is abnormal.

The differential pressure sensor 155 can measure the pressures of the inlet 141a and the outlet 141b and transmit the measured pressure to the controller 160 when the circulating fan 144 is operated. The control unit 160 may compare the pressure value provided by the differential pressure sensor 155 with a predetermined pressure value to check whether the circulation fan 144 is abnormal or not, The operation of the recovery unit 140 and the pump P can be stopped.

Meanwhile, the control unit 160 may control the operation of the circulation fan 144 such that the circulation fan 144 does not operate or an abnormality such as overheating of the heater 142 or over-cooling of the evaporator 143, It is possible not only to stop the operation of the component device in which the abnormality occurs but also to stop the operation of all the components at the same time and to generate an alarm. That is, when the control unit 160 determines that any one of the heater 142, the evaporator 143, the circulating fan 144, and the pump P has generated an abnormality, . For example, the controller 160 controls the heater 142, the evaporator 143, the circulation fan 144, and the circulation fan 144 in a state in which the circulation fan 144 is inoperable or abnormal, And the pump P can be stopped to prevent the heater 142 and the chamber 110 from overheating.

The controller 160 determines whether the heater 142 is overheated through the third temperature sensor 153 that senses the temperature of the heater 142 or the chamber temperature sensor 111 Even if it is confirmed that it is overheated, all the driving devices can be stopped.

The control unit 160 controls the operation states of all the drive units such as the recovery unit 140 and the pump P and the operation states of the plurality of valves V1 to V6, Based on the temperature value sensed by the temperature sensor unit 150, it is possible to determine whether or not there is an abnormality in the deoxidation apparatus, and to carry out the safety check of the second to third aspects.

3, the cartridge 200 according to an embodiment of the present invention includes a receiving part 210 forming a space in which a plurality of documents can be accommodated, And a cover 220 that is detachably coupled in a sliding manner.

The receiving part 210 may have the form of a housing having an open top and a plurality of perforated plates 211 may be formed in an enclosed form by being connected to each other by fastening means 212 such as bolts and nuts . For example, the accommodating portion 210 may include a plurality of perforated plates 211 arranged horizontally to form a bottom, and a plurality of vertically arranged vertically arranged perforations of the perforated plate 211 disposed horizontally, And the plurality of perforated plates 211 may be connected to each other by means of a fastening means 212. For reference, in the embodiment of the present invention, five perforated plates 211 are used so that a space in which a document can be accommodated has a rectangular shape. However, the number of the perforated plates 211 is not limited to this, Shaped receiving portion 210 may be manufactured.

Further, only the damaged perforated plate 211, which is corroded or damaged, may be separated by using the engaging means 212, so that the maintenance of the perforated plate 211 The operator can easily carry out the replacement work.

The cover 220 may have a shape and a size that can block the open upper portion of the receiving portion 210. The cover 220 may be provided with a step 221 which can be slidably inserted into a guide groove 211 a formed along the width direction of the perforated plate 211. Here, the step portion 221 may be formed to have a length corresponding to the length of the guide groove 211a at the bottom of the cover 220.

The reason why the cover 220 is detachably coupled to the receiving portion 210 in a sliding manner is that when the cartridge 200 is received in the inner space of the chamber 110 and is submerged in the deoxidizing liquid, In order to prevent the cover 220 from floating upward on the receiving portion 210.

That is, due to the specific gravity of the deoxidized liquid, a document having been hydraulically pressurized in the accommodating portion 210 is floated to press the bottom of the cover 220, thereby causing the cover 220 to float on the accommodating portion 210 The present invention solves the above-mentioned problem by introducing a sliding type fastening method as described above so that the cover 220 is firmly coupled to the receiving part 210. [

Hereinafter, a document deoxidation method using the document deoxidation apparatus 100 according to an embodiment of the present invention will be described with reference to FIGS. 1, 4, and 5. FIG.

4, the document deoxidation method using the document deoxidation apparatus 100 according to an embodiment of the present invention includes an atmospheric pressure maintaining step S10 for forming an internal pressure of the chamber 110 to an atmospheric pressure state, A deoxidized liquid supplying step S20 for supplying deoxidized liquid to the chamber 110, a first collecting step S30 for recovering the deoxidized liquid supplied to the chamber 110, And a second recovering step (S40) of recovering the deoxidized liquid.

In the atmospheric pressure maintaining step (S10), the cartridge 200 in which a document is stored can be put into the internal space of the chamber 110. [ The solenoid valve V5 (see FIG. 1) provided in the air vent of the chamber 110 is opened to exhaust the inner space formed in the inner space of the chamber 110 to the outside, As shown in FIG.

The deacidifying solution supplying step (S20) may be a step of supplying the deoxidized solution stored in the deacidifying solution tank 120 to the chamber 110. [

In the deacidified liquid supply step S20, the pump P is operated in a state in which the first valve V1 provided in the supply passage 10 is opened to pump the deoxidized liquid stored in the deacidified liquid tank 120 . The deoxidized liquid stored in the deacidified liquid tank 10 flows into the inner space of the chamber 110 through the inlet 110b of the chamber 110 through the supply passage 10, The cartridge 200 and the document received in the chamber 110 may be submerged in the deoxidation liquid. At this time, in order to smoothly supply the deoxidized liquid, the solenoid valve V6 (see FIG. 1) provided in the deacidified liquid tank 120 is opened to discharge the air formed inside the deoxidized liquid tank 120 to the outside. In addition, the operation of the pump can be confirmed through the level sensor 121.

For reference, the immersion time of the document in the deoxygenation solution may be about 20 minutes. However, the immersion time may be increased or decreased depending on the number of documents. The time for operating the pump P to supply the deoxidized liquid stored in the deacidified liquid tank 120 to the chamber 110 may be about 200 seconds to 1400 seconds, In addition, it can be varied depending on the capacity of the chamber 110 and the number of documents. The document is completely immersed in the deoxidation liquid and the immersion liquid blocks the solenoid valves V5 and V6 so that the deoxidized liquid stored in the chamber 110 and the deoxidized liquid stored in the deoxidation liquid tank 120 are vaporized and flowed out .

The first recovery step S30 may be a step of recovering the deacidified solution supplied to the chamber 110 and immersing the cartridge 200 and the document into the deacidified solution tank 120. [

In the first recovery step S30, the solenoid valve V5 that has been opened in the atmospheric pressure maintaining step S10 may be shut off. The second valve V2 provided in the first recovery passage 20 for connecting the discharge port 110c of the chamber 110 to the deacidification tank 120 is opened and the second valve V2 The third valve (V3) provided in the second recovery flow path (30) connecting the overflow (110b) and the deacidified liquid tank (120) can be opened. The third valve V3 is opened even when the deoxidized liquid is supplied to the chamber 110 so that the deoxidized liquid discharged to the overflow 110b flows through the second recovering passage 30 again, And can be recovered to the liquid tank 120.

The deoxidized liquid supplied to the chamber 110 may be recovered to the deoxygenation tank 120 via the first recovery flow path 20 and the second recovery flow path 30. When the deoxidized liquid supplied to the chamber 110 is recovered to the deoxygenating tank 120, the deoxidation tank 120 may be maintained in a vacuum state so that the inside of the chamber 110 and the deoxidation tank 120 are not maintained in a vacuum state. The valves V5 and V6 are opened to allow the deoxidized liquid to be recovered smoothly.

In the first recovery step S30, the amount of the deoxidized liquid recovered to the deoxidation liquid tank 120 may be checked through the level line 121 provided in the deoxidation liquid tank 120. [ When the first recovery is completed, the second valve (V2) and the third valve (V3) can be shut off.

The second recovery step S40 may be a step of recovering the deoxidized solution impregnated into the document or the deoxidized solution remaining in the chamber 110 by using the recovery unit 140. [

The second collecting step S40 may include a collecting step S41 of collecting vaporized deoxidized liquid using the circulating fan 144 and a step of supplying hot air to the chamber 110 using the heater 142 , And a condensing step (S45) for condensing gaseous deacidified liquid collected in the collecting step (S41) using the evaporator (143).

In the collecting step S41, the circulating fan 144 of the collecting unit 140 is operated to collect the gaseous deoxidized liquid evaporated in the chamber 110. That is, when the circulation fan 144 is operated, the deoxidized liquid existing in the gaseous state inside the chamber 110 flows into the inlet 141a of the housing 141 via the collecting flow path 50 have.

In the drying step S43, the heater 142 of the collecting unit 140 may be operated to supply the hot air to the inside of the chamber 110. That is, when the heater 142 is operated, the hot air can be transmitted to the inner space of the chamber 110 through the drying channel 60.

In this case, the deoxidized liquid impregnated in the document disposed in the chamber 110 can be more smoothly evaporated, and the chamber 110 can be prevented from being subcooled in the process of vaporizing the deoxidized liquid.

It is preferable that the drying step (S43) is performed simultaneously with the collecting step (S41) rather than after the collecting step (S41). That is, the circulation fan 144 and the heater 142 are preferably operated simultaneously.

The condensing step S45 may be a step of activating the evaporator 143 of the recovery unit 140 to cool and condense the gaseous deoxidized liquid flowing into the inlet 141a of the housing 141 . At this time, in order to prevent the internal space of the chamber 110 from being evacuated, the solenoid valve V5 may be opened to smoothly recover the gaseous deoxidized liquid.

The deoxidized liquid condensed by the evaporator 143 in the condensing step S45 may be recovered to the deacidifying liquid tank 120 via the third recovering flow path 70. [

In order to remove the heat of condensation formed in the inner space of the chamber 110, a condensation heat removing step of operating only the circulation fan 144 of the recovery unit 140 for about 5 minutes may be performed.

Then, the recovery operation of the spatially deoxidized liquid is completed on the document placed inside the chamber 110, and finally the cartridge 200 in which the deoxidized document is stored in the chamber 110 can be taken out. At this time, the operation of the heater 142 of the recovery unit 140, the evaporator 143 and the circulation fan 144 is stopped, and the solenoid valve V5, which was opened in the condensing step S45, have. The operation of the cooler 145 for transferring the refrigerant to the evaporator 143 is also stopped.

Meanwhile, the second recovery step S40 may further include a diffusion step S44.

The diffusing step S44 may be a step of diffusing the hot air supplied to the chamber 110 into the inner space of the chamber 110 in the drying step S43, As shown in FIG.

Meanwhile, the document deoxidation method using the document deoxidation apparatus 100 according to an embodiment of the present invention may further include a circulation step S5.

The circulation step S5 may be a step of preventing sedimentation of the deoxidized liquid stored in the deacidified liquid tank 120. [ That is, in the circulation step S5, the first valve (V1) provided in the supply passage (10) is shut off and the fourth valve (V4) provided in the circulation passage (40) ).

The deoxidized liquid discharged from the discharge port 120a of the deacidified liquid tank 120 is circulated to the deoxidized liquid tank 120 through the supply passage 10 and the circulating flow passage 40, Accordingly, it is possible to prevent the magnesium oxide contained in the deoxidized liquid from depositing on the bottom surface of the deacidified liquid tank 120.

The circulation step S5 may be performed before the deoxidized liquid supply step S20 in which the deoxidized liquid is supplied to the chamber 110. Preferably, (S10), and it is best to be continuously performed even after the second collecting step (S40) is finished.

When the circulation step S5 is performed before the deoxidized liquid supply step S20, the pump P is operated for about 5 minutes to circulate the deoxidized liquid, and after the second collection step S40 It is preferable that the pump P is repeatedly operated for a period of about 8 hours to 9 hours per day to circulate the deoxidized liquid. However, it is preferable that the deoxidation liquid tank 120 and the deoxidation liquid tank The operation time and the operation cycle of the pump P may be changed according to the amount of the deoxidizing solution stored in the deoxidizing unit 120.

Meanwhile, the second recovery step S40 may be repeated in the same manner again after about 3 to 4 hours. The reason why the second recovery step S40 is repeated after a predetermined period of time is that the deoxidized liquid scattered in the inner space of the deacidified liquid tank 120 is allowed to sink to the bottom of the deacidified liquid tank 120 to be. That is, after the time when the scattered deoxidized liquid is collected, it is preferable that the second recovery step (S40) is repeated to increase the recovery rate of the deoxidized liquid.

Meanwhile, the document deoxidation method using the document deoxidation apparatus according to an embodiment of the present invention compares the temperature value transmitted from the temperature sensor unit 150 with the temperature value transmitted from the chamber temperature sensor 111, And detecting the temperature of the recovery unit 140 and the temperature of the chamber 111 in real time.

The sensing step S7 may be performed during the deoxidized solution supplying step S20 and the second collecting step S40, and the evaporator 143, the heater 142 ), The presence or absence of abnormality of the circulating fan 144, and the presence or absence of abnormality of the chamber 111.

That is, the sensing step S7 may be implemented by the control unit 160. The sensing unit S7 may be implemented by the controller 160, and the first to fourth temperature sensors 151 to 154 and the differential pressure sensor It is possible to confirm whether the chamber 111 is undercooled or overheated by confirming the abnormality of the collection unit 140 through the level sensor 121 and the level sensor 121. In addition, And the supercooling of the evaporator 143 can be confirmed.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments.

Therefore, the scope of the present invention should not be limited by the described embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

100: document deoxidizer 110: chamber
110a: Overflow 110b: Inlet port
110c: exhaust port 111: chamber temperature sensor
112: convection fan 120: deoxygenation tank
120a: Outlet 121: Level sensor
140: collection unit 141: housing
142: heater 143: evaporator
144: circulating fan 150: temperature sensor unit
151: first temperature sensor 152: second temperature sensor
153: third temperature sensor 154: fourth temperature sensor
155: differential pressure sensor 160:
S5: circulation step S10: atmospheric pressure maintenance step
S20: deacid solution supplying step S30: first collecting step
S40: Second collecting step S41: Collecting step
S43: drying step S44: diffusion step
S45: Condensation stage

Claims (5)

A chamber for accommodating a cartridge containing a document;
A deacidifying liquid tank storing a deacidified liquid to be supplied to the chamber and provided with a level sensor for sensing the level of the deacidified liquid;
A pump provided on a supply passage connecting the deacid solution tank and the chamber to supply a deoxidized solution stored in the deacidified solution tank to the chamber;
A housing provided with an inlet port and a discharge port communicably connected to the chamber, a heater provided at the discharge port side of the housing to supply hot air to the chamber, and a deoxidizing liquid evaporated by the heater at the inlet side of the housing, A recovery unit configured by a circulation fan provided between the evaporator and the heater;
A convection fan for diffusing the hot air supplied to the chamber by the heater of the collection unit;
A temperature sensor unit for sensing a temperature of the recovery unit;
A chamber temperature sensor for sensing an internal temperature of the chamber;
A differential pressure sensor provided at an inlet and an outlet of the housing; And
A control unit for receiving a pressure value measured by the pressure sensor and a temperature value measured by the temperature sensor, the temperature sensor sensed by the chamber temperature sensor, and the operation of the recovery unit or the pump, ≪ / RTI >
The temperature sensor unit,
A first temperature sensor for sensing an inlet side temperature of the housing;
A second temperature sensor disposed on a side of the outlet of the housing to detect the temperature of the evaporator;
A third temperature sensor disposed on a side of a discharge port of the housing than the second temperature sensor and sensing a temperature of the heater; And
And a fourth temperature sensor for sensing a temperature of the outlet of the housing, the document deoxidizing method comprising:
An atmospheric pressure holding step of forming a pressure inside the chamber to an atmospheric pressure state;
A deacidifying liquid supplying step of supplying a deoxidizing liquid to the chamber;
A first recovery step of recovering the deoxidized liquid supplied to the chamber;
A second recovery step of recovering the deoxidized solution to a document stored in the chamber; And
And a sensing step of comparing a temperature value transmitted from the temperature sensor unit with a temperature value transmitted from the chamber temperature sensor to detect a temperature of the collection unit and a temperature state of the chamber in real time,
Wherein the second collecting step includes a collecting step of collecting the deoxidized liquid vaporized using the circulating fan, a drying step of supplying hot air to the chamber using the heater, and a collecting step of collecting And a condensation step of condensing the deacidified gaseous state liquid,
Wherein the sensing step is performed by the control unit during the deoxidized liquid supplying step and the second collecting step, wherein the first temperature sensor to the fourth temperature sensor, the differential pressure sensor, and the level And the presence or absence of abnormality of the recovery unit or the chamber is checked through a sensor.
The method according to claim 1,
In the atmospheric pressure holding step,
Wherein a solenoid valve provided in an air vent of the chamber is opened to discharge an inner space formed in an inner space of the chamber to the outside to form an inner space of the chamber at atmospheric pressure.
3. The method of claim 2,
And in the deacidified liquid supplying step, the deactivation liquid stored in the deacidified liquid tank is pumped by operating the pump in a state in which the first valve provided in the supply passage is opened.
The method according to claim 1,
Wherein the second collecting step further comprises a diffusion step of operating the convection fan to diffuse the hot air supplied to the chamber to the inner space of the chamber.
The method according to claim 1,
Further comprising a circulation step for preventing precipitation of the deoxidized liquid stored in the deacidified liquid tank,
Wherein the circulation step is carried out before the atmospheric pressure maintaining step and after the second recovery step, the first valve provided in the supply path is blocked, and the fourth valve provided in the circulation flow path connecting the deoxygenation tank and the supply path, And the pump is operated in a state in which the valve is opened.

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