CN102333600B - Cleaning equipment and cleaning method - Google Patents
Cleaning equipment and cleaning method Download PDFInfo
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- CN102333600B CN102333600B CN2010800095069A CN201080009506A CN102333600B CN 102333600 B CN102333600 B CN 102333600B CN 2010800095069 A CN2010800095069 A CN 2010800095069A CN 201080009506 A CN201080009506 A CN 201080009506A CN 102333600 B CN102333600 B CN 102333600B
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- decompression
- cleaning fluid
- rinse bath
- pressure
- temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/70—Cleaning devices specially adapted for surgical instruments
Abstract
A cleaning method which comprises immersing an object to be cleaned in a cleaning fluid reserved in a cleaning tank. In a heating step (S2), the cleaning fluid is heated to a pressure reduction/restoration pulse initiation temperature. In a pressure reduction/restoration pulse step (S3), the inside of the cleaning tank is kept under pressure-reducing operation conditions until the temperature of the cleaning fluid reaches a pressure reduction /restoration pulse termination temperature, whereby the cleaning fluid is kept in a boiling state. Every time a prescribed temperature drop of the cleaning fluid occurs during the step (S3), the pressure in the cleaning tank gets restored in an instant, whereby the boiling of the cleaning fluid is interrupted temporarily. At this pressure-restoring step, the steam bubbles which have been generated by boiling in the cleaning fluid condense in an instant. The cleaning fluid is stirred and moved by the pressure waves and pressure difference created by the condensation, whereby the object can be cleaned.
Description
Technical field
The present invention relates to a kind of cleaning device and cleaning method that medical apparatus, electronic component or machine components etc. are cleaned.The application based on March 10th, 2009 spy in Japanese publication be willing to 2009-056792 number and on March 1st, 2010 spy in Japanese publication be willing to require priority 2010-043687 number, its content quotation is in this.
Background technology
At present, shown in following patent documentation 1, known have a kind of cleaning method, is that dipping is cleaned thing in the cleaning fluid in lodging in rinse bath, repeatedly reduce to repeatedly and return to atmospheric multiple the pressure after the decompression of authorized pressure and this decompression stop, thereby realize being cleaned the cleaning of thing.
Specifically, shown in [table 1] and [0020] section of patent documentation 1, carry out repeatedly in the rinse bath (1) being pressed onto atmospheric operation again after three decompressions.This realizes for three times by carrying out following operation repeatedly, and described operation is to carry out opening/closing of the opening/close of valve (5-1), valve (9-1) simultaneously.At this moment, as described in [0022] section, be 30 seconds each time for the valve operation of carrying out the decompression in the rinse bath (1), be used for getting back to atmospheric valve and be operating as 10 seconds.The result is change repeatedly between the vacuum of the inherent 60mmHg of rinse bath (1) and the atmospheric pressure.
The cleaning method of patent documentation 1 record is as described in the section of its [0009], even the recess of opening is downwards only arranged being cleaned thing, by reducing the pressure in the rinse bath, air in the described recess is expanded and discharge, afterwards, by recovering the pressure in the rinse bath, liquid is flowed in described recess, thereby realize the cleaning in the described recess.
In addition, the cleaning method of patent documentation 1 record is as described in the section of its [0009], during decompression in rinse bath, the steam of cleaning fluid will be replaced in the described recess, during multiple pressure in rinse bath, this steam is condensed, liquid is flowed in the described recess, realize the cleaning in the described recess.
And then the cleaning method of patent documentation 1 record is as described in the section of its [0010] to [0011], and the generation by the steam bubble that caused by the decompression boiling and its float and the flowing of the liquid that causes thus, and also can realize the cleaning in the described recess.
The prior art document
Patent documentation
Patent documentation 1:JP spy open flat 7-136604 communique (claim 1,0009-0011 section, the 0020-0022 section, table 1, Fig. 1)
The inventor is to having carried out research with keen determination based on the cleaning of decompression boiling, and the result finds out, by instantaneous multiple pressure the bubble that is created in the cleaning fluid in the boiling that decompression causes is condensed quickly, also goes far towards cleaning performance.In order to obtain this effect, multiple pressure and instantaneous multiple the pressure are important in the boiling of cleaning fluid.For this reason, the decompression of the clear and definite uniform pressure that only reduces pressure repeatedly simply and return to atmospheric multiple the pressure is not enough fastening with the pass of the generation of boiling or its elimination.
In addition, in the boiling that is increased in cleaning fluid based on the number of times of instantaneous multiple cleaning of pressing, the pressure in the rinse bath is reduced gradually, in this decompression process, be the multiple pressure in pulse type ground simultaneously and be absolutely necessary.Therefore, as existing cleaning method, by carrying out that repeatedly decompression in the rinse bath is pressed onto atmospheric pressure again to authorized pressure and after this decompression finishes and then reduce pressure to arrive operation with last time identical authorized pressure, be not enough only.
Below, remark additionally a little, in the invention of patent documentation 1 record, be not limited to begin multiple pressure in the boiling.In addition, owing to also will spend 10 seconds multiple pressures, so can not say so instantaneous and press again for the moment.
In addition, though the invention of patent documentation 1 record is decompression in the repeated multiple times rinse bath and the technology of multiple pressure afterwards, since do not carry out the temperature treatment of cleaning fluid, the grade that then reduces pressure and press grade certain all the time again.
If the decompression grade is certain, then fastening with the pass that has or not boiling of bringing influence to cleaning performance, can will reduce pressure in the rinse bath, or opposite decompression is not enough with making a futile effort.And, cleaning fluid is cooled off in the ground decompression meeting of making a futile effort in the rinse bath rapidly, the having or not of boiling when this can be to next time later decompression brings influence.On the contrary, if the decompression deficiency in the rinse bath, then cleaning fluid does not seethe with excitement, and can't obtain sufficient cleaning performance.
In addition, if the decompression grade is certain, then fastening with the pass of rinse liquid temperature, cleaning fluid boiling or do not seethe with excitement, even implement decompression and multiple operation of pressing therefore equally, the big difference that produces at cleaning performance.If make the cleaning fluid boiling when wanting when establishing decompression grade certain (for example 60mmHg), to reduce pressure, then need the temperature of cleaning fluid is remained necessarily (for example 40 ℃) at every turn.At this moment, though with heated wash liquid such as heaters, be that flexible pipe etc. has under the situation of hollow bulb being cleaned thing, the rising of temperature that is cleaned the cleaning fluid in the thing is slower than the rising of the temperature of the cleaning fluid that is cleaned beyond the region of objective existence.The result is, even heated wash liquid also has the misgivings that can not cause boiling in being cleaned thing.If will prevent this unfavorable condition, need to prolong the heat time heating time of cleaning fluid.
On the other hand, be fixing till the atmospheric pressure if press grade again, then and cleaning performance is brought the pass between the cancellation of boiling of influence fasten, become multiple the pressure with making a futile effort, and force futile decompression when correspondingly reduce pressure next time.
But, futile decompression or multiple pressure, not merely only be to prolong scavenging period, also producing waste aspect the employed water of the mechanism of decompressor (water shutoff of water seal type vacuum pump, steam condense with the cooling water of heat exchanger) or the electric power (vavuum pump drives the electric power of usefulness).
Summary of the invention
The problem to be solved in the present invention is: by generation and its instantaneous disappearance that utilizes steam bubble in cleaning fluid, thereby increase cleaning performance.In addition, another problem that will solve is temperature, the decompression grade in the rinse bath of management cleaning fluid and presses grade again that having or not of the boiling of management cleaning fluid realizes cleaning rapidly and reliably.And then another problem that will solve is by suppressing futile decompression or multiple pressure, the reduction of the employed water of the mechanism of decompressor in the realization rinse bath or the use amount of electric power.
The present invention proposes in order to solve described problem, and its 1st invention is a kind of cleaning device, it is characterized in that possessing:
Rinse bath, wherein accumulate cleaning fluid and in this cleaning fluid dipping be cleaned thing;
The mechanism of decompressor, its gas that this rinse bath is interior are to outside attraction discharge and to reducing pressure in the described rinse bath; And
Multiple press mechanism, it imports extraneous gas and the pressure in the described rinse bath is recovered and multiple the pressure to the gas phase portion in the post-decompression described rinse bath,
Carry out following operation repeatedly: make the cleaning fluid boiling to reducing pressure in the described rinse bath, in this boiling, utilize described multiple press mechanism that instantaneous multiple straightening in the described rinse bath is stopped boiling to cleaning fluid, decompression again afterwards,
Whenever carry out once or the described instantaneous multiple of stipulated number pressed, the decompression grade reduced, make after decompression in cleaning fluid seethe with excitement.
According to the 1st invention, make the cleaning fluid boiling to reducing pressure in the rinse bath, and in this boiling, make instantaneous multiple pressure the in the rinse bath, thereby stop the boiling of cleaning fluid quickly.When this is pressed again, the bubble flash set of the steam that in cleaning fluid, produces by boiling so far.Pressure wave when condensing by this or pressure differential stir and transfer cleaning fluid, realize being cleaned the cleaning of thing.And, carry out such operation repeatedly, be accompanied by decompression, cleaning fluid is cooled.At this moment, if deal with by the heating of heater etc., be that the soft grade of pipe has under the situation of hollow bulb being cleaned thing then, the rinse liquid temperature that is cleaned in the thing rises slowlyer than the rinse liquid temperature that is cleaned beyond the region of objective existence, so need to prolong the retention time after the heating.Therefore, in order to tackle this situation, reduce gradually by making the decompression grade, when each decompression, cleaning fluid is reliably seethed with excitement, can obtain reliable and stable cleaning performance.Need to prove that so-called " the decompression grade is reduced " refers to: improve the vacuum in the rinse bath, just reduce the pressure in the rinse bath.
The 2nd invention is a kind of cleaning device, it is characterized in that possessing:
Rinse bath, wherein accumulate cleaning fluid and in this cleaning fluid dipping be cleaned thing;
The mechanism of decompressor, its gas that this rinse bath is interior are to outside attraction discharge and to reducing pressure in the described rinse bath; And
Multiple press mechanism, it imports extraneous gas and the pressure in the described rinse bath is recovered and multiple the pressure to the gas phase portion in the post-decompression described rinse bath,
For making the cleaning fluid constantly boiling continue to make described mechanism of decompressor action, continue to reduce the pressure in the described rinse bath,
In the boiling of the cleaning fluid that this decompression causes, carry out following operation repeatedly: utilize described multiple press mechanism to press again temporary transient instantaneously in the described rinse bath, stop boiling up to cleaning fluid.
According to the 2nd invention, make the cleaning fluid boiling to reducing pressure in the rinse bath, and in this boiling, make instantaneous multiple pressure the in the rinse bath, thereby stop the boiling of cleaning fluid quickly.When this is pressed again, the bubble flash set of the steam that in cleaning fluid, produces by boiling so far.Pressure wave when condensing by this or pressure differential stir and transfer cleaning fluid, realize being cleaned the cleaning of thing.And, carry out such operation repeatedly, be accompanied by decompression, cleaning fluid is cooled.At this moment, if deal with by the heating of heater etc., be that the soft grade of pipe has under the situation of hollow bulb being cleaned thing then, the rinse liquid temperature that is cleaned in the thing rises slowlyer than the rinse liquid temperature that is cleaned beyond the region of objective existence, so need to prolong the retention time after the heating.Therefore, in order to tackle this situation, reduce gradually by making the decompression grade, when each decompression, cleaning fluid is reliably seethed with excitement, can obtain reliable and stable cleaning performance.
The cleaning device of the 3rd invention is characterised in that on the basis of constitutive requirements of the 1st invention or the 2nd invention, described cleaning device possesses: the heating arrangements that the cleaning fluid in the described rinse bath is heated; And the sensor more than among the liquid temperature sensor that the temperature of the cleaning fluid in the described rinse bath is detected, the pressure sensor that the pressure in the described rinse bath is detected, the temperature sensor that the temperature of the gas phase portion in the described rinse bath is detected any
Utilize described heating arrangements that cleaning fluid is heated to decompression and press pulse to begin temperature again,
Cleaning fluid become decompression press the end-of-pulsing temperature again before or in described rinse bath, become decompression and press end-of-pulsing pressure again or become before decompression presses the end-of-pulsing temperature again, continue decompression in the described rinse bath by the described mechanism of decompressor, so that cleaning fluid constantly boiling
In this decompression, carry out following operation repeatedly: monitor the detection signal of described sensor, based on the regulation of the temperature of cleaning fluid or the pressure in the described rinse bath or temperature constantly, instantaneous multiple straightening stops boiling to cleaning fluid, reduces pressure again afterwards.
According to the 3rd invention, press again after pulse begins temperature in advance cleaning fluid being heated to decompression, cleaning fluid become decompression press the end-of-pulsing temperature again before or in described rinse bath, become decompression and press end-of-pulsing pressure again or become before decompression presses the end-of-pulsing temperature again, to reducing pressure in the rinse bath, so that cleaning fluid constantly boiling, and in this decompression, carry out instantaneous multiple the pressure in repeatedly to rinse bath, make and supspend boiling constantly in regulation.By with the cleaning fluid retentive control in the set point of temperature scope, thereby can carry out more reliable and stable cleaning.
The cleaning device of the 4th invention is characterised in that, on the basis of the 3rd constitutive requirements of inventing, when cleaning fluid becomes described decompression and presses the end-of-pulsing temperature again, or press end-of-pulsing pressure or decompression when pressing the end-of-pulsing temperature again again when becoming described decompression in the described rinse bath, cleaning fluid is heated to described decompression again presses pulse to begin temperature again, become again before described decompression presses the end-of-pulsing temperature again at cleaning fluid, in described rinse bath, become again described decompression press again end-of-pulsing pressure or the decompression press again before the end-of-pulsing temperature, carry out repeatedly in decompression in the described rinse bath and this decompression in the regulation instantaneous multiple pressure in the moment
Carry out the following circulation of set point number, described circulation is made of following two parts, first cleaning fluid becomes described decompression and presses pulse to begin the heating of the cleaning fluid before the temperature again, and it two is that cleaning fluid becomes described decompression and presses before the end-of-pulsing temperature again or become described decompression in the described rinse bath and press end-of-pulsing pressure or decompression to press the decompression in the described rinse bath before the end-of-pulsing temperature to press repeatedly again again again.
According to the 4th invention, carry out the following circulation of set point number, described circulation is made of following two parts, first cleaning fluid becomes decompression and presses pulse to begin the heating of the cleaning fluid before the temperature again, and it two is that cleaning fluid becomes decompression and presses before the end-of-pulsing temperature again or become decompression in the rinse bath and press end-of-pulsing pressure or decompression to press the decompression in the rinse bath before the end-of-pulsing temperature to press repeatedly again again again.In circulation once, the rinse liquid temperature that makes repeatedly by the multiple pressure that reduces pressure reduces gradually, for example has that fat constituent solidifies, the situation of cleaning performance difference, but by rinse liquid temperature is risen, multiple pressure reduce pressure afterwards repeatedly, thereby can carry out more reliable and stable cleaning.
The cleaning device of the 5th invention is characterised in that, on the basis of the 3rd invention or the 4th constitutive requirements of inventing, described cleaning device also possesses the ultrasonic vibration part, this ultrasonic vibration part imposes ultrasonic vibration by described heating arrangements cleaning fluid being heated to when decompression presses pulse to begin temperature again to cleaning fluid.
According to the 5th invention, by in the process of heated wash liquid, implement the ultrasonic wave cleaning to being cleaned thing, thereby can further improve cleaning performance.
The cleaning device of the 6th invention is characterised in that, on each the basis of constitutive requirements of the 3rd～the 5th invention, described regulation is set to the temperature that makes cleaning fluid or pressure or the every decline ormal weight of temperature in the described rinse bath constantly.
According to the 6th invention, in the moment of the every decline ormal weight of the pressure in the temperature that makes cleaning fluid or rinse bath or temperature, carry out the instantaneous multiple pressure in the rinse bath, thereby can clean reliably by simple control.
The cleaning device of the 7th invention is characterised in that, on each the basis of constitutive requirements of the 1st～the 6th invention, describedly instantaneously presses pressure that the boiling that proceeds to cleaning fluid stops and less than atmospheric pressure again.
According to the 7th invention, establish multiple pressure for less than atmospheric pressure, stop the control of cleaning fluid boiling.Thus, can eliminate does not have the futile of influence to press again and follow in the futile decompression of this next time to cleaning performance, can shorten scavenging period.And, by eliminating futile decompression, can also realize the reduction of the use amount of the employed water of the mechanism of decompressor in the rinse bath or electric power.
The 8th invention is a kind of cleaning method, and it is that dipping is cleaned thing and the cleaning method realizing cleaning in the cleaning fluid in lodging in rinse bath, it is characterized in that,
Carry out following operation repeatedly: make the cleaning fluid boiling to reducing pressure in the described rinse bath, in this boiling, instantaneous multiple straightening in the described rinse bath is stopped boiling to cleaning fluid, decompression again afterwards,
Whenever carry out once or the described instantaneous multiple of stipulated number pressed, the decompression grade reduced, make after decompression in cleaning fluid seethe with excitement.
According to the 8th invention, make the cleaning fluid boiling to reducing pressure in the rinse bath, and in this boiling, make instantaneous multiple pressure the in the rinse bath, thereby stop the boiling of cleaning fluid quickly.When this is pressed again, the bubble flash set of the steam that in cleaning fluid, produces by boiling so far.Pressure wave when condensing by this or pressure differential stir and transfer cleaning fluid, realize being cleaned the cleaning of thing.And, carry out such operation repeatedly, be accompanied by decompression, cleaning fluid is cooled.At this moment, if deal with by the heating of heater etc., be that the soft grade of pipe has under the situation of hollow bulb being cleaned thing then, the rinse liquid temperature that is cleaned in the thing rises slowlyer than the rinse liquid temperature that is cleaned beyond the region of objective existence, so need to prolong the retention time after the heating.Therefore, in order to tackle this situation, reduce gradually by making the decompression grade, when each decompression, cleaning fluid is reliably seethed with excitement, can obtain reliable and stable cleaning performance.Need to prove that so-called " the decompression grade is reduced " refers to: improve the vacuum in the rinse bath, just reduce the pressure in the rinse bath.
The 9th invention is a kind of cleaning method, and it is that dipping is cleaned thing and the cleaning method realizing cleaning in the cleaning fluid in lodging in rinse bath, it is characterized in that,
For the cleaning fluid constantly boiling being continued reduce the pressure in the described rinse bath,
In the boiling of the cleaning fluid that this decompression causes, carry out following operation repeatedly: press again temporary transient instantaneously in the described rinse bath, stop boiling up to cleaning fluid.
According to the 9th invention, make the cleaning fluid boiling to reducing pressure in the rinse bath, and in this boiling, make instantaneous multiple pressure the in the rinse bath, thereby stop the boiling of cleaning fluid quickly.When this is pressed again, the bubble flash set of the steam that in cleaning fluid, produces by boiling so far.Pressure wave when condensing by this or pressure differential stir and transfer cleaning fluid, realize being cleaned the cleaning of thing.And, carry out such operation repeatedly, be accompanied by decompression, cleaning fluid is cooled.At this moment, if deal with by the heating of heater etc., be that the soft grade of pipe has under the situation of hollow bulb being cleaned thing then, the rinse liquid temperature that is cleaned in the thing rises slowlyer than the rinse liquid temperature that is cleaned beyond the region of objective existence, so need to prolong the retention time after the heating.Therefore, in order to tackle this situation, reduce gradually by making the decompression grade, when each decompression, cleaning fluid is reliably seethed with excitement, can obtain reliable and stable cleaning performance.
The cleaning method of the 10th invention is characterised in that, on the basis of constitutive requirements of the 8th invention or the 9th invention,
Cleaning fluid is heated to decompression presses pulse to begin temperature again,
Cleaning fluid become decompression press the end-of-pulsing temperature again before or in described rinse bath, become decompression and press end-of-pulsing pressure again or become before decompression presses the end-of-pulsing temperature again, continue the decompression in the described rinse bath so that the cleaning fluid constantly boiling,
In this decompression, carry out following operation repeatedly: based on the regulation of the temperature of cleaning fluid or the pressure in the described rinse bath or temperature constantly, instantaneous multiple straightening stops boiling to cleaning fluid, reduces pressure again afterwards.
According to the 10th invention, press again after pulse begins temperature in advance cleaning fluid being heated to decompression, cleaning fluid become decompression press the end-of-pulsing temperature again before or in rinse bath, become decompression and press end-of-pulsing pressure again or become before decompression presses the end-of-pulsing temperature again, to reducing pressure in the rinse bath, so that cleaning fluid constantly boiling, and in this decompression, carry out instantaneous multiple the pressure in repeatedly to rinse bath, make and supspend boiling constantly in regulation.By with the cleaning fluid retentive control in the set point of temperature scope, thereby can carry out more reliable and stable cleaning.
The cleaning method of the 11st invention is characterised in that, on the basis of constitutive requirements of the 10th invention,
When cleaning fluid becomes described decompression and presses again the end-of-pulsing temperature, or when becoming described decompression in described rinse bath, press again end-of-pulsing pressure or decompression while pressing again the end-of-pulsing temperature, cleaning fluid is heated to described decompression again presses pulse to start temperature again, again become before described decompression presses the end-of-pulsing temperature again at cleaning fluid, again become in described rinse bath described decompression press again end-of-pulsing pressure or the decompression press again the end-of-pulsing temperature before, repeatedly carry out in decompression in described rinse bath and this decompression in the regulation instantaneous multiple pressure in the moment
Carry out the following circulation of set point number, described circulation is made of following two parts, first cleaning fluid becomes described decompression and presses pulse to begin the heating of the cleaning fluid before the temperature again, and it two is that cleaning fluid becomes described decompression and presses before the end-of-pulsing temperature again or become described decompression in the described rinse bath and press end-of-pulsing pressure or decompression to press the decompression in the described rinse bath before the end-of-pulsing temperature to press repeatedly again again again.
According to the 11st invention, carry out the following circulation of set point number, described circulation is made of following two parts, first cleaning fluid becomes decompression and presses pulse to begin the heating of the cleaning fluid before the temperature again, and it two is that cleaning fluid becomes decompression and presses before the end-of-pulsing temperature again or become decompression in the rinse bath and press end-of-pulsing pressure or decompression to press the decompression in the rinse bath before the end-of-pulsing temperature to press repeatedly again again again.In circulation once, the rinse liquid temperature that makes repeatedly by the multiple pressure that reduces pressure reduces gradually, for example has that fat constituent solidifies, the situation of cleaning performance difference, but by rinse liquid temperature is risen, multiple pressure reduce pressure afterwards repeatedly, thereby can carry out more reliable and stable cleaning.
The cleaning method of the 12nd invention is characterised in that, on the basis of constitutive requirements of the 10th or the 11st invention, cleaning fluid being heated to when decompression presses pulse to begin temperature again, cleaning fluid imposed ultrasonic vibration.
According to the 12nd invention, by in the process of heated wash liquid, implement the ultrasonic wave cleaning to being cleaned thing, thereby can further improve cleaning performance.
And then the cleaning method of the 13rd invention is characterised in that, on each the basis of constitutive requirements of the 8th～the 12nd invention, describedly instantaneously presses pressure that the boiling that proceeds to cleaning fluid stops and less than atmospheric pressure again.
According to the 13rd invention, establish multiple pressure for less than atmospheric pressure, stop the control of cleaning fluid boiling.Thus, can eliminate does not have the futile of influence to press again and follow in the futile decompression of this next time to cleaning performance, can shorten scavenging period.And, by eliminating futile decompression, can also realize the reduction of the use amount of the employed water of the mechanism of decompressor in the rinse bath or electric power.
The invention effect
According to the present invention, by generation and its instantaneous disappearance that utilizes steam bubble in cleaning fluid, thereby can increase cleaning performance.In addition, manage temperature, the decompression grade in the rinse bath of cleaning fluid and press grade again, having or not of the boiling of management cleaning fluid can realize rapidly and cleaning reliably.And then, by suppressing futile decompression or multiple pressure, can realize the reduction of the use amount of the employed water of the mechanism of decompressor in the rinse bath or electric power.
Description of drawings
Fig. 1 is the skeleton diagram of an embodiment of expression cleaning device of the present invention.
Fig. 2 is the figure of an example of the cleaning method of the expression cleaning device that uses Fig. 1, and expression is from elapsed time of cleaning beginning and the relation between rinse bath internal pressure and the rinse liquid temperature.
Fig. 3 is the flow chart of an example of the cleaning method of the expression cleaning device that uses Fig. 1.
The specific embodiment
Below, describe one embodiment of the present invention in detail based on accompanying drawing.
Fig. 1 is the skeleton diagram of an embodiment of expression cleaning device of the present invention.
The cleaning device 1 of present embodiment possesses: rinse bath 3, wherein accumulate cleaning fluid and dipping is cleaned thing 2; Water supply mechanism 4, it supplies with cleaning fluid in this rinse bath 3; The mechanism of decompressor 5, it attracts the gases in the rinse bath 3 to discharge and to reducing pressure in the rinse bath 3 to the outside; Multiple press mechanism 6, it imports extraneous gas and the pressure in the rinse bath 3 is recovered and multiple the pressure to the gas phase portion in the post-decompression rinse bath 3; Heating arrangements 7, it heats the cleaning fluid in the rinse bath 3; Drainage mechanism 8, it discharges the cleaning fluid in the rinse bath 3; Pressure sensor 9, it detects the pressure in the rinse bath 3; Liquid temperature sensor 10, its temperature to the cleaning fluid in the rinse bath 3 detects; And controlling organization 11, it is based on described each mechanisms 4～8 of control such as described sensor 9,10 detection signals.And, also can replace pressure sensor 9 that the pressure in the rinse bath 3 are detected or except it, possess the temperature sensor (diagram omission) that the temperature in the rinse bath 3 are detected.
Cleaning device 1 is not limited to clean and is cleaned thing 2, also can be the device that carries out rinsing or carry out disinfection.That is, cleaning device 1 can be carried out any the above processing among the cleaning that is cleaned thing 2, rinsing and the sterilization.In the present embodiment, as described later, can after the cleaning that is cleaned thing 2 and rinsing, carry out the drying that is cleaned thing 2 at a rinse bath 3.
Cleaning fluid can seethe with excitement so long as pass through the decompressions in 5 pairs of rinse baths of the mechanism of decompressor 3, just do not bother about especially, and for example can be water.In the present embodiment, cleaning fluid is the water that contains the cleaning agent of 0.5% front and back.But cleaning fluid also can be the water that does not contain cleaning agent except the water that contains cleaning agent.In addition, cleaning fluid also can be other liquid that soft water, pure water, solvent etc. can be used for cleaning.
Being cleaned thing 2 is the article that will clean, and for example is medical apparatus, electronic component or machine components.
Rinse bath 3 is can the anti-firmly hollow container of the decompression of inner space.The rinse bath 3 of present embodiment possesses: main body 12, and it is opening and have hollow bulb upward; And covering 13, its peristome to this main body 12 opens and closes.Under main body 12 closed the lid 13 state, main body 12 and the gap of covering between 13 were sealed by liner 14.Thus, the hollow bulb of main body 12 is sealed, and forms confined space in rinse bath 3.
Be connected with the water supply mechanism 4 of supplying with cleaning fluid in the rinse bath 3 at rinse bath 3.The water supply mechanism 4 of present embodiment is supplied to rinse bath 3 with the water of raw water box 15 through water supply road 16.On water supply road 16, be provided with supply-water pump 17 and feed water valve 19 in turn from raw water box 15 1 sides.When opening feed water valve 19 under the state that makes supply-water pump 17 actions, the water of raw water box 15 is supplied to rinse bath 3 through water supply road 16.Middle part on water supply road 16 can be sneaked into cleaning agent from spray tank 20 in the water of rinse bath 3 to supply by killer injecting pump 18.And, the action of the switching of feed water valve 19 and supply-water pump 17 and killer injecting pump 18 have or not interlock.
Be connected with the mechanism of decompressor 5 that attracts discharge to reduce pressure in to rinse bath 3 to the outside gas in the rinse bath 3 at rinse bath 3.The mechanism of decompressor 5 of present embodiment attracts the gas in the rinse bath 3 to discharge through exhaust line 21.On exhaust line 21, be provided with the vavuum pump 24 of heat exchanger 22, check-valves 23 and hydrolock in turn from rinse bath 3 one sides.
Heat exchanger 22 condenses the steam cooling in the exhaust line 21.For this reason, through 22 supply and the discharge waters of heat exchange feed water valve 25 heat exchanger.By the steam in the exhaust line 21 are condensed, thereby the load of the vavuum pump 24 after alleviating can effectively realize the decompression in the rinse bath 3.
The vavuum pump 24 of hydrolock is supplied to the water that is called water shutoff and moves as known.For this reason, supply and discharge waters to vavuum pump 24 through water shutoff feed water valve 26.When making vavuum pump 24 actions, water shutoff feed water valve 26 is opened with vavuum pump 24 interlocks.
Be connected with multiple press mechanism 6 at rinse bath 3, multiple press mechanism 6 imports extraneous gas and the pressure in the rinse bath 3 is recovered and multiple pressure to the rinse bath 3 interior gas phase portions under the decompression.The multiple press mechanism 6 of present embodiment through air feed road 27 in the decompression rinse bath 3 down the importing extraneous gas.Be provided with steam supply valve 28 on air feed road 27, when opening steam supply valve 28 under the state that in rinse bath 3, has been depressurized, by pressure reduction extraneous gas imported in the rinse bath 3, can make multiple pressure the in the rinse bath 3.
Be provided with the heating arrangements 7 that the cleaning fluid in the rinse bath 3 is heated at rinse bath 3.Be blown into steam in the cleaning fluid of the heating arrangements 7 of present embodiment in the rinse bath 3, thus heated wash liquid.Specifically, can supply with road 29 through steam from steam supply sources such as boilers and supply with steam to rinse bath 3.Supply with the steam supply valve 30 that road 29 arranges by opening and closing at steam, thereby can switch to having or not that rinse bath 3 interior steam are supplied with.
But, heating arrangements 7 is except the cleaning fluid in rinse bath 3 directly is blown into steam, also can in rinse bath 3, electric heater be set, or the container that is equipped with electric heater is set in addition and by circulating pump cleaning fluid or heating agent circulate, or rinse bath 3 made nested configurations (inside and outside dual structure) and to heating agent such as its hollow bulb importing steam and the interior cleaning fluid of indirect rinse bath 3 between this container and rinse bath 3.But, from the viewpoint of the simplification of the formation of energy efficiency and rinse bath 3, preferably as present embodiment, be blown into steam in the cleaning fluid and come heated wash liquid.
Be provided with the drainage mechanism 8 of discharging the cleaning fluid in the rinse bath 3 at rinse bath 3.The drainage mechanism 8 of present embodiment is with bottom through draining road 31 discharges of the cleaning fluid in the rinse bath 3 from rinse bath 3.Be provided with draining valve 32 on draining road 31, when opening draining valve 32 under the state that has cleaning fluid in rinse bath 3 inner products, can outside rinse bath 3, derive cleaning fluid naturally.
The liquid temperature sensor 10 that is provided with pressure sensor 9 that the pressure in the rinse bath 3 is detected and the temperature of the cleaning fluid in the rinse bath 3 is detected at rinse bath 3.And then, as previously mentioned, also can the temperature sensor that the temperature to the gas phase portion in the rinse bath 3 detects be set at rinse bath 3.In the present embodiment, be provided with pressure sensor 9 and liquid temperature sensor 10.In Fig. 1, pressure sensor 9 is arranged on the air feed road 27 between steam supply valve 28 and the rinse bath 3, but also can directly be arranged at rinse bath 3.In addition, in the present embodiment, though liquid temperature sensor 10 is arranged on the sidewall of rinse bath 3, as long as can the temperature of the cleaning fluid in the rinse bath 3 be detected, the position is set does not bother about especially.
Below, be specifically described for the cleaning method of the cleaning device 1 that uses present embodiment.Fig. 2 is the figure of an example of the cleaning method of the expression cleaning device 1 that uses present embodiment, line P represents that line T represents from the relation between the temperature of the elapsed time that begins to clean and cleaning fluid from the elapsed time that begins to clean and the relation between the pressure in the rinse bath.In addition, Fig. 3 is the flow chart of an example of the cleaning method of the expression cleaning device 1 that uses present embodiment.
Under the state, do not have cleaning fluid in rinse bath 3 in the early stage, each valve 19,25,26,30,32 beyond the steam supply valve 28 cuts out, and each pump 17,18,24 stops action.Begin to carry out in turn water filling operation S1, heating process S2, reduce pressure and press pulse operation S3 and drainage procedure S4 again from this A-stage.
Before water filling operation S1, in rinse bath 3, put into and be cleaned thing 2, close the lid 13 of rinse bath 3.But, be cleaned thing 2 and also can after water filling operation S1, put into rinse bath 3 soon, at this moment, will be cleaned after thing 2 puts into rinse bath 3 lid 13 of the rinse bath 3 that closes.In any case, being cleaned thing 2 is immersed in the cleaning fluid in the rinse bath 3.
Water filling operation S1 is to the rinse bath 3 interior operations of injecting cleaning fluid by water supply mechanism 4.In the present embodiment, under the state of opening feed water valve 19, make supply-water pump 17 and killer injecting pump 18 actions, in rinse bath 3, put into cleaning fluid.The cleaning agent of desired amount is added in action by killer injecting pump 18 in the water that is supplied in the rinse bath 3.But, as previously mentioned, can omit the interpolation of cleaning agent, at this moment, can omit the setting of killer injecting pump 18 and spray tank 20.In addition, in raw water box 15, except the water that adds cleaning agent, also can accumulate and use pure water, soft water, other cleaning fluid.In water filling operation S1, under the state that the lid 13 with rinse bath 3 closes, be accompanied by to the water filling of rinse bath 3, the air in the rinse bath 3 is 27 discharges from the air feed road.
When detecting cleaning fluid by the liquid level sensor (diagram is omitted) that arranges at rinse bath 3 when accumulating predetermined water level in the rinse bath 3, stop the water supply of water supply mechanism 4.Specifically, close feed water valve 19, and stop supply-water pump 17 and killer injecting pump 18, enter subsequent processing.But the water supply in the rinse bath 3 predetermined water level in proceeding to rinse bath 3, also can be put into the cleaning fluid of ormal weight in rinse bath 3.At this moment, can control output in the rinse bath 3 by only supplying water to rinse bath 3 with the stipulated time.
(S21～S23) is heated to decompression with the cleaning fluids in the rinse bath 3 to press pulse to begin the operation of temperature again heating process S2.Specifically, by heating arrangements 7 heated wash liquid, become decompression up to cleaning fluid and press pulse to begin temperature again.In the present embodiment, open steam supply valve 30, be blown into steam, heated wash liquid (S21) in the cleaning fluid in the rinse bath 3.In this steam is supplied with, monitor the temperature of cleaning fluids by liquid temperature sensor 10, when cleaning fluid became decompression and presses pulse to begin temperature again, steam off supply valve 30 entered subsequent processing (S22, S23).At this moment, preferably when cleaning fluid becomes decompression and presses pulse to begin temperature again, keeping this temperature in the mode of stipulated time, based on the switching of the detection signal control steam supply valve 30 of liquid temperature sensor 10, the steam off supply valve 30 afterwards, enter subsequent processing.By pressing pulse to begin temperature again to keep cleaning fluid with the stipulated time in decompression, thereby even have like that under the situation of hollow bulb for flexible pipe being cleaned thing 2, the temperature that also can make the inside and outside cleaning fluid that is cleaned thing 2 is for necessarily.
Decompression is pressed pulse to begin temperature again and is not particularly limited, but be under the situation of bloodstain in the spot that is cleaned thing 2, because if surpass 60 ℃ of then protein thermal deformation and sets, so under this situation that is cleaned thing 2, it is below 60 ℃ that preferred decompression presses pulse to begin temperature again, more preferably below 50 ℃.In the present embodiment, decompression is pressed pulse to begin temperature again and for example is set at 50 ℃.
(among the S31～S35), the cleaning fluid in rinse bath 3 becomes decompression presses before the end-of-pulsing temperature again, to reducing pressure in the rinse bath 3, so that cleaning fluid constantly boiling (S31, S32) to press pulse operation S3 again in decompression.During this, in the boiling of cleaning fluid, carry out repeatedly regulation constantly with rinse bath 3 in instantaneous multiple pressure, temporarily interrupt the operation (S33, S34) of the boiling of cleaning fluid.Reduce pressure like this, repeatedly and instantaneous multiple pressure.Decompression presses the end-of-pulsing temperature to be not particularly limited again, but because if the then cleaning performance decline of cleaning temperature step-down, thus be preferably more than 20 ℃, more preferably more than 25 ℃.
If be described more specifically, then press again among the pulse operation S3 in decompression, continue the action of the mechanism of decompressor 5, the pressure in the rinse bath 3 is descended gradually, realize cleaning fluid constantly boiling (S31, S32) thus.But, during this, by the temperature of liquid temperature sensor 10 supervision cleaning fluids, when the temperature of cleaning fluid reduces ormal weight at every turn, will temporarily press (S33, S34) in the rinse bath 3 again by multiple press mechanism 6.Decompressions in 5 pairs of rinse baths of the mechanism of decompressor 3 are as long as closing steam supply valve 28, opening under the state of heat exchange feed water valve 25 and water shutoff feed water valve 26 and make vavuum pump 24 actions.In addition, as long as open the steam supply valve 28 that is constituted by magnetic valve based on the instantaneous multiple pressure that returns to setting pressure of multiple press mechanism 6.When this is pressed again, also can make the action of the mechanism of decompressor 5 former states.Then, open steam supply valve 28, make multiple pressure the in the rinse bath 3, interrupt the boiling of cleaning fluid, afterwards, close steam supply valve 28 again, the boiling (S31) of the decompression in the realization rinse bath 3 and the cleaning fluid that causes thus.
Press again among the pulse operation S3 in decompression, as long as in the boiling of cleaning fluid, press again, just do not limit the moment of multiple pressure especially.In the present embodiment, though monitor the temperature of cleaning fluids based on liquid temperature sensor 10, press again when the every decline set point of temperature of this temperature, the also pressure that can monitor in the rinse baths 3 based on pressure sensor 9 is pressed when the every decline authorized pressure of this pressure again.Perhaps, the gas phase portion in rinse bath 3 arranges temperature sensor, based on the temperature of the gas phase portion in this temperature sensor monitors rinse bath 3, presses again when the every decline set point of temperature of this temperature.No matter which kind of situation, set point of temperature or authorized pressure can be pressed the change midway of pulse operation S3 again in decompression, according to circumstances also can be all different at every turn.In addition, pressing again during the every decline ormal weight of the pressure in the temperature of cleaning fluid or rinse bath 3 or temperature, also can only press again in each stipulated time by timer.
Described set point of temperature (described authorized pressure is also taken this as the standard same definite) is suitably set, and in the present embodiment, for example adopts 2 ℃.Therefore, at heating process S2 cleaning fluid is heated under 50 ℃ the situation, first multiple pressure is carried out when cleaning fluid becomes 48 ℃.And, with the each temperature of setting of the mode of step-down in turn, need to see the temperature fall that only is full of the evaporation of steam in flexible pipe or in the container.On the other hand, if set big temperature fall, then cause the temperature of futile cleaning fluid to descend.Therefore, the temperature fall with the each setting of mode of step-down in turn is preferably 0.5～5 ℃, more preferably 1～3 ℃.
On the other hand, instantaneous multiple pressure proceeds to the pressure that the boiling that makes cleaning fluid stops.Especially, preferably under less than atmospheric pressure, become the pressure of the pressure that the boiling close to cleaning fluid stops.Partway by negative pressure, but not be pressed onto atmospheric pressure again, stop the control of the boiling of cleaning fluid, do not have the futile of influence to press again and follow in the futile decompression of this next time thereby can eliminate to cleaning performance, can shorten scavenging period.And, by eliminating futile decompression, can also realize the reduction of the use amount of the mechanism of decompressor 5 employed water in the rinse bath 3 or electric power.And this presses grade again is that certain value is just enough, also can reduce etc. change on the way gradually according to hope.
So, according to the cleaning method of present embodiment, to reducing pressure in the rinse bath 3 and making the cleaning fluid boiling, in this boiling, with the instantaneous setting pressure that is pressed onto again in the rinse bath 3, stop the boiling of cleaning fluid quickly.Therefore, when pressing again, the bubble flash set of the steam that in cleaning fluid, produces by boiling so far.Pressure wave when condensing by it or pressure differential, cleaning fluid are stirred and are transferred, and realize being cleaned the cleaning of thing 2.And, carry out such operation repeatedly, be accompanied by decompression, cleaning fluid is cooled.At this moment, if deal with by the heating of heater etc., be that the soft grade of pipe has under the situation of hollow bulb being cleaned thing 2 then, be cleaned rinse liquid temperatures in the thing 2 and rise slowlyer than being cleaned the outer rinse liquid temperature of thing 2, so need to prolong retention time after the heating.Therefore, in order to tackle this situation, reduce gradually by making the pressure in the rinse bath 3, cleaning fluid is reliably seethed with excitement, can obtain reliable and stable cleaning performance.
But as mentioned above, the bubble that produces by decompression is because of the disappearance of condensing of instantaneous multiple pressure, but up to the utmost point short time of its disappearance, causes big as far as possible pressure differential bubble inside and outside, and this can further stir and transfer cleaning fluid.For example, when being cleaned thing 2 and being flexible pipe, the time of the bubble collapse in this flexible pipe is the several seconds, therefore increases the required time of 20kPa to be preferably in 1 second, in more preferably 0.1 second under air dividing potential drop amount.
In addition, before instantaneous multiple pressure, in cleaning fluid, have steam as much as possible, can produce the pressure wave when condensing like this in more space.For this reason, rinse liquid temperature is reduced rapidly, preferred rinse liquid temperature per minute reduces more than 1 ℃, and more preferably per minute reduces more than 2 ℃.
Becoming decompression at cleaning fluid carries out this decompression before pressing the end-of-pulsing temperature again and presses pulse operation S3 (S32) again.Decompression presses the end-of-pulsing temperature not limit especially again, for example is set at 30 ℃.Afterwards, will be pressed onto atmospheric pressure in the rinse bath 3 again, finish to clean, but also can be as shown in Figure 2, repeated multiple times carries out heating process S2 and reduces pressure pressing the group (S35) of pulse operation S3 again.
That is to say that when cleaning fluid became decompression and presses the end-of-pulsing temperature again, can heat became decompression up to cleaning fluid and press pulse to begin temperature again again, become again before decompression presses the end-of-pulsing temperature again at cleaning fluid, reduce pressure repeatedly and answer pressure.And, become the circulation that constitutes repeatedly that decompression presses the heating of the cleaning fluid of pulse before beginning temperature and the decompression that becomes at cleaning fluid in the rinse bath 3 of decompression before pressing the end-of-pulsing temperature again to press again again at cleaning fluid and carry out set point number (being twice among Fig. 2) and get final product.In circulation once, by reducing pressure multiple pressure repeatedly, rinse liquid temperature reduces gradually, for example have that fat constituent solidifies, the situation of cleaning performance difference, but by rinse liquid temperature is risen, reduce pressure multiple pressure afterwards repeatedly, can carry out more reliable and stable cleaning.But, press again after pulse begins temperature cleaning fluid being heated to decompression, as shown in Figure 2, preferably begin temperature with the multiple pressure pulse of reducing pressure and keep the stipulated time.
Drainage procedure S4 afterwards will be pressed onto atmospheric pressure again in the rinse bath 3, discharge the operation of the rinse water in the rinse bath 3.Specifically, as long as, open draining valve 32 discharge rinse water and get final product after being pressed onto atmospheric pressure again in rinse bath 3 opening steam supply valve 28.Afterwards, according to hope, be cleaned the rinsing of thing 2.For example, in rinse bath 3, put into water and be heated to set point of temperature, to reducing pressure in the rinse bath 3 and multiple the pressure, be cleaned the rinsing of thing 2.Such rinsing can carry out twice, and at this moment, secondary rinsing can be set De Genggao with the temperature of the water in the rinse bath 3 than primary rinsing, for example uses 80～90 ℃ water.
Behind rinsing process, rinse water is discharged, carry out drying process then and get final product.In drying process, in rinse bath 3, supply with steam, improve the temperature that is cleaned thing 2, afterwards to reducing pressure in the rinse bath 3.Perhaps, in rinse bath 3, import warm air by the heat exchange with steam, get final product vacuumizing in the rinse bath 3 by the mechanism of decompressor 5 simultaneously.Thus, the drying that is cleaned thing 2 in the realization rinse bath 3.
Cleaning device of the present invention and cleaning method are not limited to the formation of described embodiment, can suitably change.Especially press again among the pulse operation S3 in decompression, if comprise that the pressure that make repeatedly in the rinse bath 3 reduce gradually and the boiling of the cleaning fluid that the decompression rinse bath 3 in causes in instantaneous multiple pressure and the operation of operation of temporarily interrupting the boiling of cleaning fluid, other can suitably change.
In addition, as the mechanism of decompressor 5, in Fig. 1, though possess heat exchanger 22 and vavuum pump 24, also can omit heat exchanger 22, only keep vavuum pump 24.On the contrary, also can replace vavuum pump 24 and heat exchanger 22 or except them, possess steam jet ejector or water ejector.And then the air that also can implement behind initial water filling operation S1, before the heating process S2 in the rinse bath 3 is got rid of operation.Perhaps, also can in water filling operation S1, close steam supply valve 28, and make the mechanism of decompressor 5 actions, in water filling in rinse bath 3, realize thus in rinse bath 3, discharging air.
In addition, in said embodiment, though by supply-water pump 17 water in the raw water box 15 is supplied in the rinse bath 3, but also can be by in advance with reducing pressure in 5 pairs of rinse baths 3 of the mechanism of decompressor, thereby utilize the differential pressure inside and outside the rinse bath 3, and do not use supply-water pump 17 that the water in the raw water box 15 are supplied in the rinse bath 3.And, sneak into cleaning agent in this water supply and can utilize differential pressure to carry out too.
In addition, in said embodiment, though become before decompression presses the end-of-pulsing temperature again at cleaning fluid, carry out decompression and multiple pressure in the rinse bath repeatedly, but also can become decompression in rinse bath 3 presses before the end-of-pulsing pressure again, or in rinse bath 3, become decompression and press again before the end-of-pulsing temperature, carry out decompression and multiple pressure in the rinse bath repeatedly.Whether become decompression in the rinse bath 3 and press end-of-pulsing pressure again, as long as utilize pressure sensor 9 to monitor, whether become decompression in the rinse bath 3 and press the end-of-pulsing temperature again, as long as utilize the temperature sensor monitors that is arranged on the gas phase portion in the rinse bath 3.
In addition, in said embodiment, whenever carry out once instantaneous multiple pressure, the decompression grade after making it reduces, but also can whenever carry out repeatedly instantaneous multiple the pressure, and the decompression grade after making it reduces.At this moment, also make the cleaning fluid boiling by decompression, and instantaneous answering pressed in its boiling.
And then, in the cleaning device and cleaning method of described embodiment, also can append the cleaning based on ultrasonic vibration.That is, also can the ultrasonic vibration part further be set at rinse bath 3.And, for example in heating process S2, can realize the cleaning based on ultrasonic vibration.Heating process S2 is not because heated wash liquid only have helps to cleaning, so in this operation, by cleaning fluid is imposed ultrasonic vibration, thereby to being cleaned thing 2 enforcement ultrasonic waves cleanings, can further improve cleaning performance.
At last, in said embodiment, under the state of in rinse bath 3, just having accommodated after being cleaned thing 2, need not be cleaned thing 2 and must be immersed in the cleaning fluid all.For example, be housed under the situation of rinse bath 3 to multilayer up and down will having put into the shelf that is cleaned thing 2, can not flood the shelf of the superiors.At this moment, by the boiling of cleaning fluid, cleaning fluid is touched all are cleaned thing 2 and it is cleaned.So, though be not immersed in the cleaning fluid before being cleaned the cleaning fluid boiling of thing 2 in rinse bath 3, the cleaning fluid in making rinse bath 3 also can be disposed at the position that is immersed in the cleaning fluid when seething with excitement.At this moment, can increase the space that arranges that is cleaned thing 2, can more be cleaned thing 2 by once turning round to clean.In addition, turn round owing to reducing liquid level, so can suppress the use amount of cleaning fluid.
Embodiment
As present embodiment, realize by the cleaning method of Fig. 2 measuring the residual protein of stainless steel substrates after the cleaning of blood coating stainless steel substrates, confirm cleaning performance.In addition, as a comparative example 1, for decompression and the multiple pressure of only carrying out repeatedly in the rinse bath, and situation about cleaning fluid not being heated is again confirmed cleaning performance equally.And then, as a comparative example 2, for the multiple pressure pulse of not reducing pressure, to reduce pressure in the rinse bath up to cleaning fluid do not seethe with excitement, afterwards cleaning fluid heated again and again to rinse bath in reduce pressure up to the situation that cleaning fluid is no longer seethed with excitement, confirm cleaning performance equally.
For any example, for blood is applied stainless steel substrates put into the situation of the flexible pipe of length 2m, put into the flexible pipe of length 4m situation, put into the situation of lidded container, do not put into flexible pipe or container and intactly be immersed in the situation of cleaning fluid, confirm cleaning performance.
Flexible pipe is the pipe of internal diameter 5mm, external diameter 7mm, is vortex shape when sinking to rinse bath.The size of blood coating stainless steel substrates is wide 5mm, long 55mm, thick 1mm.Blood coating stainless steel substrates is disposed at central authorities' (for example under the situation of the flexible pipe of the length of 4m, putting in the place of 2m from an end) of flexible pipe.So-called lidded container is to use miniature utensil sterilization with dish (wide 394mm, depth 267mm, high 23mm make and be with the silicon pad by heat resistant plastice), places blood in the central upper of the silicon pad that is layed in container and applies stainless steel substrates and close the lid.The blood coating stainless steel substrates that uses is that inner chamber cleans evaluation indicator (indicator) (TOSI-LumCheck).
[table 1]
Cleaning performance is as shown in table 1, and from this table as can be known, the cleaning of present embodiment is superior.Comparative example 1 is owing to only being to be cleaned the cleaning that the discrepancy of air of the airtrapping portion of thing brings, so cleaning performance is bad.In addition, in comparative example 2, if be full of steam because the boiling of cleaning fluid makes in the flexible pipe, then cleaning fluid does not shake, and cleans to interrupt, and cleaning performance is bad.
Symbol description
1 cleaning device
2 are cleaned thing
3 rinse baths
4 water supply mechanisms
5 mechanisms of decompressor
6 multiple press mechanisms
7 heating arrangements
8 drainage mechanisms
9 pressure sensors
10 liquid temperature sensors
11 controlling organizations
Claims (11)
1. cleaning device is characterized in that possessing:
Rinse bath, wherein accumulate cleaning fluid and in this cleaning fluid dipping be cleaned thing;
Heating arrangements, it heats the cleaning fluid in the described rinse bath;
The mechanism of decompressor, its gas that this rinse bath is interior are to outside attraction discharge and to reducing pressure in the described rinse bath; And
Multiple press mechanism, it imports extraneous gas and the pressure in the described rinse bath is recovered and multiple the pressure to the gas phase portion in the post-decompression described rinse bath,
After by described heating arrangements cleaning fluid being heated to design temperature, continuation is by the exhaust in the described rinse bath of the described mechanism of decompressor, in the process of the pressure in reducing described rinse bath, in the boiling of the cleaning fluid that this decompression causes, carry out following operation repeatedly: utilize described multiple press mechanism to press again temporary transient instantaneously in the described rinse bath, stop boiling up to cleaning fluid.
2. cleaning device as claimed in claim 1 is characterized in that,
Described cleaning device possesses: the sensor more than any among the liquid temperature sensor that the temperature of the cleaning fluid in the described rinse bath is detected, the pressure sensor that the pressure in the described rinse bath is detected, the temperature sensor that the temperature of the gas phase portion in the described rinse bath is detected
Utilize described heating arrangements that cleaning fluid is heated to as the decompression of described design temperature and press pulse to begin temperature again,
Cleaning fluid become decompression press the end-of-pulsing temperature again before or in described rinse bath, become decompression and press end-of-pulsing pressure again or become before decompression presses the end-of-pulsing temperature again, continue decompression in the described rinse bath by the described mechanism of decompressor, so that cleaning fluid constantly boiling
In this decompression, carry out following operation repeatedly: monitor the detection signal of described sensor, based on the regulation of the temperature of cleaning fluid or the pressure in the described rinse bath or temperature constantly, instantaneous multiple straightening stops boiling to cleaning fluid, reduces pressure again afterwards.
3. cleaning device as claimed in claim 2 is characterized in that,
When cleaning fluid becomes described decompression and presses again the end-of-pulsing temperature, or when becoming described decompression in described rinse bath, press again end-of-pulsing pressure or decompression while pressing again the end-of-pulsing temperature, cleaning fluid is heated to described decompression again presses pulse to start temperature again, again become before described decompression presses the end-of-pulsing temperature again at cleaning fluid, again become in described rinse bath described decompression press again end-of-pulsing pressure or the decompression press again the end-of-pulsing temperature before, repeatedly carry out in decompression in described rinse bath and this decompression in the regulation instantaneous multiple pressure in the moment
Carry out the following circulation of set point number, described circulation is made of following two parts, first cleaning fluid becomes described decompression and presses pulse to begin the heating of the cleaning fluid before the temperature again, and it two is that cleaning fluid becomes described decompression and presses before the end-of-pulsing temperature again or become described decompression in the described rinse bath and press end-of-pulsing pressure or decompression to press the decompression in the described rinse bath before the end-of-pulsing temperature to press repeatedly again again again.
4. cleaning device as claimed in claim 2 is characterized in that,
Described cleaning device also possesses the ultrasonic vibration part,
This ultrasonic vibration part imposes ultrasonic vibration by described heating arrangements cleaning fluid being heated to when decompression presses pulse to begin temperature again to cleaning fluid.
5. cleaning device as claimed in claim 2 is characterized in that,
Described regulation is set to temperature or interior pressure or the every decline ormal weight of temperature of described rinse bath that makes cleaning fluid constantly.
6. cleaning device as claimed in claim 2 is characterized in that,
Describedly instantaneously multiple press pressure that the boiling that proceeds to cleaning fluid stops and less than atmospheric pressure.
7. cleaning method, it is that dipping is cleaned thing and the cleaning method realizing cleaning in the cleaning fluid in lodging in rinse bath, it is characterized in that,
After by heating arrangements cleaning fluid being heated to design temperature, continuation is by mechanism of decompressor exhaust in the described rinse bath, in the process of the pressure in reducing described rinse bath, in the boiling of the cleaning fluid that this decompression causes, carry out following operation repeatedly: import extraneous gas and with temporarily pressing again instantaneously in the described rinse bath, stop boiling up to cleaning fluid to the gas phase portion in the described rinse bath by multiple press mechanism.
8. cleaning method as claimed in claim 7 is characterized in that,
Cleaning fluid is heated to as the decompression of described design temperature presses pulse to begin temperature again,
Cleaning fluid become decompression press the end-of-pulsing temperature again before or in described rinse bath, become decompression and press end-of-pulsing pressure again or become before decompression presses the end-of-pulsing temperature again, continue the decompression in the described rinse bath so that the cleaning fluid constantly boiling,
In this decompression, carry out following operation repeatedly: based on the regulation of the temperature of cleaning fluid or the pressure in the described rinse bath or temperature constantly, instantaneous multiple straightening stops boiling to cleaning fluid, reduces pressure again afterwards.
9. cleaning method as claimed in claim 8 is characterized in that,
When cleaning fluid becomes described decompression and presses again the end-of-pulsing temperature, or when becoming described decompression in described rinse bath, press again end-of-pulsing pressure or decompression while pressing again the end-of-pulsing temperature, cleaning fluid is heated to described decompression again presses pulse to start temperature again, again become before described decompression presses the end-of-pulsing temperature again at cleaning fluid, again become in described rinse bath described decompression press again end-of-pulsing pressure or the decompression press again the end-of-pulsing temperature before, repeatedly carry out in decompression in described rinse bath and this decompression in the regulation instantaneous multiple pressure in the moment
Carry out the following circulation of set point number, described circulation is made of following two parts, first cleaning fluid becomes described decompression and presses pulse to begin the heating of the cleaning fluid before the temperature again, and it two is that cleaning fluid becomes described decompression and presses before the end-of-pulsing temperature again or become described decompression in the described rinse bath and press end-of-pulsing pressure or decompression to press the decompression in the described rinse bath before the end-of-pulsing temperature to press repeatedly again again again.
10. cleaning method as claimed in claim 8 is characterized in that,
Cleaning fluid being heated to when decompression presses pulse to begin temperature again, cleaning fluid is imposed ultrasonic vibration.
11. cleaning method as claimed in claim 7 is characterized in that,
Describedly instantaneously multiple press pressure that the boiling that proceeds to cleaning fluid stops and less than atmospheric pressure.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
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| JP2009-056792 | 2009-03-10 | ||
| JP2009056792 | 2009-03-10 | ||
| JP2010-043687 | 2010-03-01 | ||
| JP2010043687A JP4784692B2 (en) | 2009-03-10 | 2010-03-01 | Cleaning device and cleaning method |
| PCT/JP2010/001595 WO2010103782A1 (en) | 2009-03-10 | 2010-03-08 | Cleaning equipment and cleaning method |
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| Publication Number | Publication Date |
|---|---|
| CN102333600A CN102333600A (en) | 2012-01-25 |
| CN102333600B true CN102333600B (en) | 2013-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010800095069A Active CN102333600B (en) | 2009-03-10 | 2010-03-08 | Cleaning equipment and cleaning method |
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| JP (1) | JP4784692B2 (en) |
| KR (1) | KR101371007B1 (en) |
| CN (1) | CN102333600B (en) |
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| JP5169039B2 (en) * | 2007-06-29 | 2013-03-27 | Ｎｅｃ東芝スペースシステム株式会社 | DC-DC converter |
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| JPH0286878A (en) * | 1988-09-22 | 1990-03-27 | Asahi Eng:Kk | Method for cleaning article |
| JP2984445B2 (en) * | 1991-12-19 | 1999-11-29 | 株式会社千代田製作所 | Ultrasonic cleaning method |
| JPH07136604A (en) * | 1993-11-24 | 1995-05-30 | Ebara Corp | Cleaning method and device |
| JP3143354B2 (en) * | 1995-04-05 | 2001-03-07 | スピードファムクリーンシステム株式会社 | Method for cleaning machined product and cleaning apparatus used for the method |
| JPH1010509A (en) * | 1996-06-25 | 1998-01-16 | Seiko Epson Corp | Cleaning method and manufacture of liquid crystal display device using the same |
| JP3801904B2 (en) * | 2001-11-06 | 2006-07-26 | アクア化学株式会社 | Cleaning device and cleaning method |
| JP4272193B2 (en) * | 2005-09-05 | 2009-06-03 | 東静電気株式会社 | Parts washing and drying method and parts washing and drying apparatus |
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| JP5169039B2 (en) * | 2007-06-29 | 2013-03-27 | Ｎｅｃ東芝スペースシステム株式会社 | DC-DC converter |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101371007B1 (en) | 2014-03-10 |
| KR20110121656A (en) | 2011-11-07 |
| JP2010234363A (en) | 2010-10-21 |
| JP4784692B2 (en) | 2011-10-05 |
| CN102333600A (en) | 2012-01-25 |
| WO2010103782A1 (en) | 2010-09-16 |
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