CN105436166A

CN105436166A - Acid steaming cleaning device internally provided with temperature sensor

Info

Publication number: CN105436166A
Application number: CN201510906287.9A
Authority: CN
Inventors: 郝东辉
Original assignee: Individual
Current assignee: Emery Technology Shenzhen Co Ltd
Priority date: 2015-12-09
Filing date: 2015-12-09
Publication date: 2016-03-30
Anticipated expiration: 2035-12-09
Also published as: CN105436166B

Abstract

The invention provides an acid steaming cleaning device internally provided with a temperature sensor. The acid steaming cleaning device comprises an original acid liquid container used for containing original acid liquid, a heater, a cleaning cavity, a controller and the acid liquid temperature sensor. The heater is used for heating the original acid liquid container part so that the original acid liquid can be evaporated into hot acid steam, and hot acid air enters the cleaning cavity. A vessel is arranged in the cleaning cavity, and the hot acid steam entering the cleaning cavity is used for conducting acid steam cleaning on the vessel. The controller is used for controlling running of all parts so that the acid steaming cleaning technology can be conducted. The acid liquid temperature sensor is arranged in the original acid liquid and used for measuring the temperature of an original acid liquid body. A temperature threshold value is set for the controller, the temperature measured by the acid liquid temperature sensor is received and compared with the temperature threshold value, and the heater is controlled correspondingly. According to the acid steaming cleaning device in the embodiment, the temperature sensor is directly arranged in the original acid liquid, the temperature measured by the temperature sensor is directly the practical temperature of the acid liquid, and the accuracy of a temperature measurement value is ensured.

Description

The acid steaming washer that temperature sensor is built-in

Technical field

The present invention relates to acid and steam washer, relate more specifically to automatically carry out to vessel equipment and the method that cleaning is steamed in acid.

Background technology

The trace in laboratory, ultra trace metallic element analysis require that vessel used must be clean, avoid bringing various pollutant into sample, in order to avoid background values that is that introduce is too high and affect final experimental result because vessel are clean.

Have at present and common acids is evaporated in the Asia mode of boiling, obtain high purity acid steam, clean the method for vessel with such acid vapor.Steam in washer design in existing common acid, in Row control, spent acid process, heating and temperaturel control, Liquid level, usually there is some problem.

1, Row control:

(1) existing solution mostly just can only provide the acid of the first step to steam cleaning step, user is still needed manually each vessel to be used one by one to the acid solution of pure water rinsing remained on surface, then still need user manually vessel to be placed on air dry oven to dry or natural air drying, waste time and energy very much.

(2) if adopt the mode that air dry oven is dried; because of air dry oven inherently metal material make; and strict filtration and purification are not done to the air sucked; and daily also can other thing dry, this mode will face air dry oven or the unholiness secondary pollution problem brought of air.

(3) if adopt the mode of natural air drying, by consuming time oversize.

2, spent acid process:

(1), after the acid vapor cleaning vessel surface that existing solution produces, be condensed into liquid (being referred to as " spent acid ") herein, during spent acid generally without any process, is directly back to " totally acid ", continue to participate in evaporation.

(2) acid is steamed to clean and the Asia mode of boiling why will be adopted to evaporate, and object is exactly to make evaporation process become slow, avoids drop Residual contamination thing to pollute vessel.And these spent acid contain a large amount of pollutants, be directly back to clean acid, can severe contamination totally sour, and along with the continuation of cleaning process, pollutant levels can be more and more higher, the state even if boil in Asia, also cannot avoid pollutant recontamination vessel.Thus cleaning performance is had a greatly reduced quality.

3, heating and temperaturel controls:

(1) existing solution is generally and avoids temperature sensor to be corroded easily by high-temperature strong acid, its temperature sensor is installed in container exterior, avoid contacting with strong acid, the temperature of what but such mounting means was measured is container outer wall or heater, the true temperature of acid solution cannot be reflected, usual solution temperature will differ 10-30 DEG C with the temperature of container outer wall or heater, and the measure error of temperature is very large.

(2) existing solution temperature dependent controller carrys out temperature control, and heater itself does not possess self-temperature controlling function.Once temperature controller lost efficacy, continuation was heated by heater, caused instrument to burn the great risk of even laboratory fire.

4, Liquid level:

(1) for the Liquid level of clean acid solution, existing solution is because of the circulation pattern being evaporation-condensation-backflow-evaporation, therefore liquid level does not have too large change in whole process, and inner acid gas is steaming, be difficult to observe level condition from outside, therefore usual without any liquid level monitoring measure.

(2) for the Liquid level of spent acid acid solution, existing technical scheme normally directly makes spent acid acid solution be back to clean acid, does not distinguish clean acid solution and spent acid acid solution, therefore to the Liquid level of spent acid acid solution without any surveillance and control measure.

Summary of the invention

In view of the above-mentioned situation of prior art, make the present invention, it should be noted that, do not needed to solve above-mentioned all problems according to the solution of the embodiment of the present invention, as long as any one among can solving the problem.

According to an aspect of the present invention, providing a kind of acid for carrying out acid vapor cleaning to vessel and steam washer, can comprising: original acid liquor container, for holding original acid solution; Heater, for heating original acid liquor container part, make original acid solution be evaporated to hot acid steam, hot acid air enters cleaning chambers; Cleaning chambers, is placed in cleaning chambers at vessel, wherein utilizes the described hot acid steam entering cleaning chambers to carry out acid vapor cleaning to described vessel; Controller, steams cleaning for the operation controlling all parts to carry out acid; Acid liquor temperature sensor, is placed in the inside of original acid solution, for measuring the temperature of original acid solution body; Its middle controller set temperature threshold value, receives the temperature of acid liquor temperature sensor measurement, by this temperature compared with temperature threshold, and correspondingly control heater.

The acid of above-described embodiment is steamed washer and is directly built in by temperature sensor in original acid solution, temperature sensor measurement be exactly directly acid solution actual temperature, ensure that the accuracy of measured temperature.

Steam in washer in the acid of an example, described acid liquor temperature sensor can be thermocouple type temperature sensor, article two, thermocouple wire is placed in polytetrafluoroethylene PTFE or perfluoroalkoxy resin PFA capillary, PTFE or PFA capillary is placed in stay pipe, stay pipe is placed in original acid liquor container, PTFE or PFA capillary is extended to outside original acid liquor container by the connecting hole on the wall of original acid liquor container.

Steam in washer in the acid of an example, described stay pipe lower end can be connected with tube wrapping device, PTFE or PFA capillary in described stay pipe through stay pipe endoporus out, and the hole again through stay pipe after winding with one circuit on tube wrapping device enters stay pipe, then upwards extend along stay pipe, the last hole from stay pipe also extends to outside original acid liquor container by the connecting hole the wall of original acid liquor container, wherein thermocouple head part is in one week that described PTFE or PFA capillary is wound, and thermocouple head part and PTFE or PFA capillary contact.

Steam in washer in the acid of an example, described two thermocouple wires subtend can make contact to and seem a wire, and subtend contact portion becomes thermocouple head.

Steam in washer in the acid of an example, described acid liquor temperature sensor can be thermocouple type temperature sensor, surface parcel PTFE or the PFA integument of thermocouple wire, the position of thermocouple probe adopts hot-press method that thermocouple probe and PTFE or PFA integument are combined closely.

Steam in washer in the acid of an example, thermocouple wire can exist one or more seal point, adopt at seal point place hot-press method that thermocouple wire and PTFE or PFA integument are combined closely.

Steam in washer in the acid of an example, described controller can continuity ground set temperature threshold value.

The acid of an example is steamed washer and can also be comprised: bilayer sleeve, be installed in cleaning chambers part, there are inner and outer tubes, inner and outer tubes close contact, when carrying out acid to tubular type vessel and steaming cleaning, vessel are enclosed in bilayer sleeve outside, wherein the surrounding of inner and outer tubes and/or top have the acid vapor tap of connection, acid vapor tap is communicated with the center of interior pipe, the outer surface of interior pipe has axial groove, outer pipe bottom has the water/gas access aperture that water supply/air enters, and outer tube is distributed with the water/gas tap of water supply/air discharge, groove on described interior pipe is communicated with water/gas access aperture and is communicated with the water/gas tap on outer tube, under the control of the controller, carry out acid vapor cleaning step, heater heats the acid solution in original acid liquor container part, the acid vapor obtained enters the interior tube hub in described bilayer sleeve, and flow out through vapor peracids tap, be sprayed onto the inner surface of tubular type vessel, Water spray step, after acid vapor cleaning step, water to enter into the groove on described inner tube outer surface through the water/gas access aperture of described outer pipe bottom via pressure effect, and from the water/gas tap ejection outer tube, be ejected into the inner surface of vessel, and heated air drying step, after water rinsing step, air through heating enters into the groove on described inner tube outer surface under pressure through the water/gas access aperture of described outer pipe bottom, and from the water/gas tap ejection outer tube, is ejected into the inner surface of vessel.

The acid of an example is steamed washer and can also be comprised: be installed on the water/air spraying head type jet pipe in cleaning chambers part, its top is gondola water faucet form, is distributed with multiple pore, sprays from pore for entering water/air spraying head type jet pipe.

Steam in washer in the acid of an example, bottom described cleaning chambers wall, waste discharge mouth can be had, discharge from waste discharge mouth for any one of having cleaned in the spent acid of vessel, waste water, waste gas.

The acid of an example is steamed washer and can also be comprised upper and lower two-layer casing rack, for being fixed in cleaning chambers by sleeve pipe.

Steam in washer in the acid of an example, under the control of the controller, can carry out: acid vapor cleaning step, heater heats the acid solution in original acid liquor container part, the acid vapor obtained enters the interior tube hub in described bilayer sleeve, and flow out through vapor peracids tap, be sprayed onto the inner surface of tubular type vessel; Water spray step, after acid vapor cleaning step, water to enter into the groove on described inner tube outer surface through the water/gas access aperture of described outer pipe bottom via pressure effect, and from the water/gas tap ejection outer tube, be ejected into the inner surface of vessel, and heated air drying step, after water rinsing step, air through heating enters into the groove on described inner tube outer surface under pressure through the water/gas access aperture of described outer pipe bottom, and from the water/gas tap ejection outer tube, be ejected into the inner surface of vessel.

The acid of an example is steamed washer and can also be comprised the integrated form original acid solution position control assembly be connected with original acid liquor container part, be configured to liquid level tube, addition funnel and removal waste fluid gauge valve integrated, original acid solution enters original acid liquor container inside by addition funnel, the liquid level of liquid level tube reflects the liquid level of original acid liquor container, can discharge the acid solution in original acid liquor container when removal waste fluid valve is opened.

The acid of an example is steamed washer and can also be comprised non-contact type ultrasonic liquid level sensor, be arranged on the outer surface of original acid liquor container, and not with original acid liquor container surface contact, for automatically measuring the liquid level of the original acid in original acid liquor container, and the signal of the instruction liquid level of measurement is sent to controller, controller receives the signal of this instruction liquid level, when the signal of this instruction liquid level is lower than predetermined threshold, controls to stop acid steaming cleaning.

Steam in washer in the acid of an example, described heater can be ptc heater.

The acid of an example is steamed washer and can also be comprised liquid waste containment device, for holding spent acid, waste water, the waste gas of discharging from waste discharge mouth; And waste liquid leve monitor, for monitoring the waste liquid liquid level in liquid waste containment device, and spent acid liquid level is sent to controller, when liquid level exceedes predetermined threshold, controller controls to stop waste-liquid cleaning technique.

Steam in washer in the acid of an example, waste liquid leve monitor can be resistive pressure sensor, for automatically responding to the weight of liquid waste containment device, and sends the signal of instruction weight to controller; Controller receives the signal of this instruction weight, when the signal of this instruction weight exceedes predetermined threshold, transmits control signal, to control to stop acid steaming cleaning.

Steam in washer in the acid of an example, liquid waste containment device can be positioned on pallet, and pallet adopts flange design, prevents waste liquid from dripping to pressure sensor inside; And described pressure sensor design has leakage outlet, thus when sensor internal has waste liquid to enter, this leakage can be discharged.

Steam in washer in the acid of an example, described pressure sensor can carry out PTFE or PFA surface spraying.

Steam in washer in the acid of an example, described hot acid steam can evaporate original acid solution in the Asia mode of boiling and obtain.

Accompanying drawing explanation

Below in conjunction with accompanying drawing in the detailed description of the embodiment of the present invention, these and/or other side of the present invention and advantage will become clearly and be easier to understand, wherein:

Fig. 1 show according to the embodiment of the present invention for automatic to tubular type vessel carry out acid vapor cleaning acid steam washer 1000 structure composition schematic block diagram.

Fig. 2 (a) shows the schematic perspective view of pipe 200 according to an embodiment of the invention; Fig. 2 (b) shows the top view of pipe 200 according to an embodiment of the invention.

Fig. 3 (a) shows the schematic perspective view of outer tube 300 according to an embodiment of the invention; Fig. 3 (b) shows the axial section of outer tube 300 according to an embodiment of the invention.

Fig. 4 (a) shows the front view of the sleeve pipe of inner and outer tubes composition; Fig. 4 (b) shows the profile cut vertically; Fig. 4 (c) shows the profile relative to cutting vertically after Fig. 4 (b) 90-degree rotation; Fig. 4 (d) shows the cross-sectional view that the horizontal plane along acid vapor tap place is cut open; Fig. 4 (e) shows the cross-sectional view that the horizontal plane along water/gas tap place is cut open.

Fig. 5 shows acid according to another embodiment of the present invention and steams the structural representation of washer 2000.

Fig. 6 (a) shows the stereogram of water/air spraying head type jet pipe according to an embodiment of the invention; Fig. 6 (b) shows water/air spraying head type jet pipe profile in the axial direction; Fig. 6 (c) shows the part sectioned view that water/air spraying head type jet pipe amplifies.

Fig. 7 shows acid according to an embodiment of the invention and steams the schematic diagram of the more specifically structure of washer 3000.

Fig. 8 (a)-(d) shows the structural representation of the upper bracket in casing support according to an embodiment of the invention, and wherein Fig. 8 (a) is the stereogram of upper bracket; Fig. 8 (b) is the sectional axonometric drawing of upper bracket; Fig. 8 (c) is the left view of upper bracket; Fig. 8 (d) is that upper bracket exports the profile cut open along spent acid.

Fig. 9 (a)-(d) shows the structural representation of the lower carriage in casing support according to an embodiment of the invention, and wherein Fig. 9 (a) is the stereogram of lower carriage; Fig. 9 (b) is the sectional axonometric drawing of lower carriage; Fig. 9 (c) is the left view of lower carriage; Fig. 9 (d) is the profile that lower carriage is cut open along water inlet/air-flow road.

Figure 10 shows profile sleeve pipe, water/air spraying head type jet pipe, carrier parts are grouped together.

Figure 11 shows the overall procedure steaming cleaning method 4000 according to the acid of automatically cleaning vessel in cleaning chambers under the control of the controller of the embodiment of the present invention.

Figure 12 shows clean acid solution lower than at the temperature of boiling point, slow evaporation, and acid vapor is risen by the acid vapor path of pipe in sleeve pipe, and the inner surface being ejected into vessel from the acid vapor tap at surrounding and/or top carries out the schematic diagram of acid cleaning.

Figure 13 shows cleaned sour vapour and is condensed into acid solution discharges system schematic diagram through waste discharge mouth.

Figure 14 illustrates that ultra-pure water enters the schematic diagram that washer is steamed in acid.

Figure 15 is ultra-pure water cleaning schematic diagram, shows a part of water/gas path entered between inner and outer pipes of ultra-pure water, is ejected into vessel surface, residual superincumbent acid solution is rinsed out from the water/gas tap outer tube; Another part enters water/air spraying head type jet pipe, and spray from the gondola water faucet at jet pipe top, the acid solution that vessel outer surface is residual rinses out, water/air spraying head type jet pipe, and spray from the gondola water faucet at jet pipe top, the acid solution that vessel outer surface is residual rinses out, and " addle " that is entrained with acid solution discharges from waste discharge mouth.

Figure 16 illustrates that hot-air enters the schematic diagram that washer is steamed in acid.

Figure 17 is heated air drying schematic diagram, show hot-air and be full of whole space between carrier parts, then a part under pressure, water/gas access aperture on outer tube enters the water/gas path between inner and outer pipes, vessel interior surface is ejected into from the water/gas tap outer tube, inwall is dry; A part enters water/air spraying head type jet pipe, and sprays from the gondola water faucet at jet pipe top, and vessel outer surface is dry, and these are entrained with " humid air " of moisture, also discharge from waste discharge mouth.

Figure 18 (a) and (b) respectively illustrate three-dimensional view according to the integrated form of the embodiment of the present invention original acid solution position control assembly 800 and profile.

Figure 19 (a) and (b) respectively illustrate stereogram and the profile of thermocouple type temp sensor device 400 according to an embodiment of the invention.

Figure 20 shows the schematic perspective view of thermocouple type temperature sensor 500 according to another embodiment of the present invention.

Figure 21 (a) and (b) show the stereogram and the profile that steam washer according to the acid being configured with ultrasonic liquid level sensor 13 of the embodiment of the present invention.

Figure 22 (a) shows the schematic perspective view according to relative position relation between the pressure sensor of the liquid level for sensing spent acid bottle of the embodiment of the present invention and relevant portion, and Figure 22 (b) shows the profile according to embodiment of the present invention pressure sensor and relevant portion.

Figure 23 (a) and (b) show stereogram and the front view of the structure of heater 700 according to an embodiment of the invention.

Detailed description of the invention

In order to make those skilled in the art understand the present invention better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.

One, embodiment 1: washer is steamed in acid

As shown in Figure 1, acid steaming washer 1000 comprises original acid liquor container 1, heater 2, cleaning chambers 3, multiple acid vapor, water, gas ejection part 4, base 5.

Original acid solution is held in original acid liquor container 1.Heater 2 heats original acid liquor container part, to obtain hot acid steam.Multiple acid vapor, water, gas ejection part 4 being installed in cleaning chambers 3, when cleaning vessel, vessel can being enclosed within acid vapor, water, gas ejection part 4.Each acid vapor, water, gas ejection part 4 have the acid vapor path entering for acid vapor and spray, the water/gas path entering and spray for water/gas, follow-uply carry out exemplary description by the structure of acid vapor, water, gas ejection part 4 and acid vapor path and water/gas path.

Acid is steamed washer 100 and is also comprised controller (not shown), steams cleaning for the operation controlling all parts to carry out acid.In one example, controller comprises host computer and slave computer two parts, host computer can be general-purpose computer as desktop computer, notebook computer, mobile terminal etc., be wherein provided be suitable for perform control software; Slave computer is such as single-chip microcomputer or Special Programmable Logic Controller etc.; each sensor that wherein acid is steamed in washer can send signal to slave computer; with wired or wireless mode, coherent signal is sent to host computer after slave computer process; host computer carries out corresponding calculating, command signal is sent to slave computer by process, judgement; slave computer is issued an order to all parts again, such as shut down, start, report to the police, time setting, threshold value setting etc.But this mode is only example, can carry out as required adjusting or changing.

For ease of describing, hereinafter sometimes claiming host computer to be " computer ", claiming slave computer to be " single-chip microcomputer ".

Slave computer in controller, supply socket etc. can be placed in base 5.

The overall process that cleaning is steamed in acid is summarized as follows: after vessel are enclosed on acid vapor, water, gas ejection part, and start acid and steam washed journey, heater heats original acid liquor container part, original acid solution evaporation moral acid vapor difficult to understand; Acid vapor enters acid vapor, water, gas ejection part 4, is ejected on vessel through vapor peracids path, carries out acid vapor cleaning to vessel; After acid vapor cleaning, water enters the water/gas path of acid vapor, water, gas ejection part 4, is ejected on vessel, carries out water flushing to vessel; After water rinses, the air after heating enters the water/gas path of acid vapor, water, gas ejection part 4, is ejected on vessel, carries out heated air drying.Follow-up will by reference to the accompanying drawings to acid steam cleaning each step carry out exemplary description.

Utilizing the acid vapor purging system according to the embodiment of the present invention and method, as long as be enclosed within sleeve pipe by vessel, by running control program, just fully automatically can carry out acid vapor cleaning, Water spray, air dried a complete set of flow process.

The structure of acid vapor, water, gas ejection part 200 is according to an embodiment of the invention described below in conjunction with Fig. 2,3,4.

In one example, acid vapor, water, gas ejection part are bilayer sleeve, have inner and outer tubes, inner and outer tubes close contact.

The center 220 of interior pipe is connected with acid vapor admission passage.Here acid vapor admission passage is implication widely, can be any form, as long as the center 220 entering interior pipe of acid vapor energy mat.Such as, in one example, namely acid vapor admission passage refers to original acid liquor container, and a part for interior pipe is placed in original acid liquor container.In another example, acid vapor admission passage can refer to the pipeline connecting original acid liquor container and interior pipe.

On inner tubal wall, (inner tubal wall at surrounding and/or top) has acid vapor tap 230, and acid vapor tap 230 is communicated with the center 220 of interior pipe.The wall of outer tube 300 also has acid vapor tap 330, acid vapor tap 330 on outer tube wall is connected with the relative acid steam discharge hole 230 on inner tubal wall, thus the acid vapor entering interior tube hub 220 can be discharged from sleeve pipe, be ejected on the vessel that are enclosed within sleeve pipe, thus the inner surface of cleaning vessel, after acid vapor contact inner surface, part meeting condensation, become spent acid, other uncooled acid vapors, can flow out below vessel, and spread in whole cleaning chambers, and then the outer surface of cleaning vessel.

The outer surface of interior pipe 200 has the groove 210 extended vertically, the bottom of outer tube 300 has the water/gas access aperture 310 that water supply/air enters, and outer tube 300 is distributed with the water/gas tap 320 of water supply/air discharge, groove 210 on described interior pipe 200 is communicated with the water/gas access aperture 310 of outer tube 300 and is communicated with the water/gas tap 320 on outer tube 300, water/gas access aperture and water/gas enter pipeline and are connected, and form water/gas path thus.

Fig. 4 (a) shows the front view of the sleeve pipe of inner and outer tubes composition; Fig. 4 (b) shows the profile cut vertically; Fig. 4 (c) shows the profile relative to cutting vertically after Fig. 4 (b) 90-degree rotation; Fig. 4 (d) shows the cross-sectional view that the horizontal plane along acid vapor tap place is cut open; Fig. 4 (e) shows the cross-sectional view that the horizontal plane along water/gas tap place is cut open.Wherein, acid vapor flows into from the centre bore 220 of interior pipe 200, is then ejected into the inner surface of vessel from the acid vapor tap 230 of pipe 200 in connection and the acid vapor tap 330 of outer tube 300; Water/gas enters into the groove 210 of interior pipe 200 from the water/gas access aperture 310 of outer tube 300, is then ejected into the inner surface of vessel from the water/gas tap 320 outer tube be communicated with groove 210, carries out water shower or heated air drying thus.

In one example, the groove of interior pipe 200 is four, and the outer surface circle spacing 90 degree along interior pipe is uniformly distributed.But this is only example, and the groove of interior pipe 200 can be less or more.

In one example, the diameter of acid vapor tap 230 or 330 is greater than the diameter of water/gas tap 320, discharges, avoid also not portalling with regard to condensation to accelerate acid vapor.

In one example, acid vapor tap 330 arranges in 45 degree of interleaved in outer tube circumference with water/gas tap 320, and be not axially on a horizontal plane, avoids the water sprayed to flow to acid vapor tap as far as possible.

Inner and outer tubes should select the material being suitable for punching of acid corrosion-resistant, fluoroplastics or the high purity glass such as such as PTFE, PFA.

In example above, sleeve pipe is illustrated as the double-decker comprising inner and outer tubes, but this is preferred exemplary, as an alternative, also can adopt mono-layer tube, be provided with acid vapor path, water passage and air flue in pipe.

In example above, water passage and air flue are shared, but as required, water passage and air flue also can be provided separately.

In example above, in sleeve pipe, acid vapor channel setting is at center, and water/gas channel setting is in periphery, but this is preferred exemplary, and as required, also can be set to water/gas path at center, acid vapor path is in periphery.

Example is above, acid vapor channel setting is one, water/gas channel setting is multiple, but this is preferred exemplary, as required, acid vapor path can be set to multiple, and water/gas channel setting is one, or acid vapor path and water/gas path are all set to one, or acid vapor path acid vapor path and water/gas path are all set to multiple.

Two, embodiment 2: washer is steamed in acid

Fig. 5 shows acid according to another embodiment of the present invention and steams the structural representation of washer 2000, what acid shown in Fig. 5 steamed that washer 2000 and the acid shown in Fig. 1 steams washer 1000 has differently been water/air spraying head type jet pipe 6 many, as its name suggests, this water/air spraying head type jet pipe 6 top is gondola water faucet form, being distributed with multiple pore, spraying from pore for entering water/air spraying head type jet pipe.

Fig. 6 (a) shows the stereogram of water/air spraying head type jet pipe according to an embodiment of the invention; Fig. 6 (b) shows water/air spraying head type jet pipe profile in the axial direction; Fig. 6 (c) shows the part sectioned view that water/air spraying head type jet pipe amplifies, illustrated therein is the schematic diagram that water sprays from pore, and particularly, gondola water faucet is multiple row pore with certain angular distribution, ensures wider spray area.Water or air enter arrival top, tube center hole gondola water faucet and eject from bottom, rinse or dry vessel outer surface.

Three, embodiment 3: washer is steamed in acid

As shown in Figure 7, acid is steamed washer 3000 and is comprised original acid liquor container 1, heater 2, cleaning chambers 3, multiple acid vapor, water, gas ejection part 4, base 5, water/air spraying head type jet pipe 6, also comprises temperature sensor 7, integrated form original acid solution position control assembly 8, upper casing rack 9, pipe support 11 of trapping, inlet port 12.

Acid liquor temperature sensor 7 is placed in the inside of original acid solution, for measuring the temperature of original acid solution body.Controller (not shown) set temperature threshold value, receives the temperature that acid liquor temperature sensor 7 is measured, by this temperature compared with temperature threshold, and correspondingly control heater, such as, when temperature arrives temperature threshold, control heater 2 quits work.Follow-uply will introduce the specific implementation embodiment of acid liquor temperature sensor 7 in detail.

Integrated form original acid solution position control assembly 8 is configured to the integration of liquid level tube 820, addition funnel 810 (having funnel lid 840) and removal waste fluid valve 830, original acid solution enters original acid liquor container 1 inside by addition funnel 810, the liquid level of liquid level tube 820 reflects the liquid level of original acid liquor container 1, can discharge the acid solution in original acid liquor container 1 when removal waste fluid valve 830 is opened.Follow-uply to introduce in detail with reference to accompanying drawing.

Heater 2 can be ptc heater, follow-uply describes in detail to the form of heater.

Acid is steamed washer 3000 and is also comprised liquid level sensor 13, liquid level sensor 13 is such as non-contact type ultrasonic liquid level sensor, be arranged on the outer surface of original acid liquor container, and not with original acid liquor container surface contact, for automatically measuring the liquid level of the original acid in original acid liquor container, and the signal of the instruction liquid level of measurement is sent to controller.Controller receives the signal of this instruction liquid level, when the signal of this instruction liquid level is lower than predetermined threshold, controls to stop acid steaming cleaning.

Acid is steamed washer 3000 and is also comprised casing support, comprises upper bracket 9 and lower carriage 10, for being fixed in cleaning chambers by sleeve pipe.Support, for through the screw hole on support, is fixed in original acid liquor container 1 by fixed screw 11.

Fig. 8 (a)-(d) shows the structural representation of the upper bracket in casing support according to an embodiment of the invention, and wherein Fig. 8 (a) is the stereogram of upper bracket; Fig. 8 (b) is the sectional axonometric drawing of upper bracket; Fig. 8 (c) is the left view of upper bracket; Fig. 8 (d) is that upper bracket exports the profile cut open along spent acid, circular hole 901 is wherein the waste discharge mouth flowed out for the spent acid cleaned after vessel, waste water, waste gas, label 902 indicates the jack for inserting water/air spraying head type jet pipe, label 903 indicates the jack inserted for sleeve pipe, label 904 instruction is used for the screw hole being screwed into screw (screw 11 such as shown in Fig. 7), in one example, a part for screw hole is for connecting the screw of upper bracket and lower carriage, and another part is used for screw upper bracket being connected to original acid liquor container.

Fig. 9 (a)-(d) shows the structural representation of the lower carriage in casing support according to an embodiment of the invention, and wherein Fig. 9 (a) is the stereogram of lower carriage, Fig. 9 (b) is the sectional axonometric drawing of lower carriage, Fig. 9 (c) is the left view of lower carriage, Fig. 9 (d) is the profile that lower carriage is cut open along water inlet/air-flow road, label 1001 wherein indicates screw hole, a part for screw hole is for connecting the screw of upper bracket and lower carriage, and another part is used for screw upper bracket being connected to original acid liquor container, label 1002 indicates sleeve pipe patchhole, label 1003 indicates the water inlet/gas port entered for water/gas, water inlet/air-flow road that label 1004 indicates water supply/gas to flow into, label 1003 indicates for the hole of water/gas from the vertical direction of the confined space between lower carriage inflow up and down, small hole at bottom part 310 (as shown in Figure 3) on outer tube is in the confined space between carrier parts, the bottom of water/air spraying head type jet pipe is also in the confined space between carrier parts, thus water/gas from water inlet/gas port 1003 through water inlet/air-flow road 1004, confined space between vertical core 1005 enters up and down, water/gas access aperture 310 on outer tube enters water/gas path 210 between inner and outer pipes (as Fig. 2, shown in Fig. 4), vessel surface is ejected into from the water/gas tap 320 outer tube, water/gas also enters water/air spraying head type jet pipe in addition, from pore ejection, carries out pure water shower and heated air drying with gondola water faucet form to the outer surface of each vessel.

Figure 10 shows profile sleeve pipe, water/air spraying head type jet pipe, carrier parts are grouped together, wherein 9 instruction upper brackets, 10 instruction lower carriages, 4 instruction sleeve pipes, 6 instruction water/air spraying head type jet pipes, carrier parts is fixed to the screw of original acid liquor container by 11-1 instruction together, lower carriage is fixed to the screw of original acid liquor container by 11-2 instruction, the waste discharge mouth that 901 instructions are flowed out for the spent acid cleaned after vessel, waste water, waste gas, water inlet/gas port that 1003 instruction instructions enter for water/gas.

Washer is steamed in the acid of above-described embodiment, automatically completes the cleaning of complete set, the flow process of rinsing, drying.Whole flow process is full-automatic, without the need to manual intervention.

The spent acid that the acid steaming washer of above-described embodiment produces directly discharges cleaning chambers, enters into waste liquid bottle, is not back in " totally acid " and continues to participate in evaporating, do not pollute clean acid, can improve cleaning performance.

In one example, acid steaming washer can also comprise spent acid container, waste water container and flue gas leading, spent acid leve monitor, waste water leve monitor, pure water leve monitor (not shown).Wherein spent acid enters waste pipe through waste discharge mouth, then the three-way solenoid valve controlled by controller is automatically imported spent acid container; Waste water enters waste pipe through waste discharge mouth, then the three-way solenoid valve controlled by controller is automatically imported waste water container; Waste gas enters waste pipe through waste discharge mouth, the three-way solenoid valve controlled by controller is again automatically imported waste water container, after the steam making it take out of obtains preliminary condensation, the exhaust outlet of waste gas through waste water container top enters flue gas leading, then from the other one end safety dumping be placed in vent cabinet of flue gas leading.Spent acid leve monitor is for monitoring the waste liquid liquid level in waste fluid container, and spent acid liquid level is sent to controller, when liquid level exceedes predetermined threshold, controller controls to stop acid steaming cleaning, waste water leve monitor is for monitoring the waste water liquid level in waste water container, and waste water liquid level is sent to controller, when liquid level exceedes predetermined threshold, controller controls to stop acid steaming cleaning, and pure water leve monitor is for monitoring the pure water liquid level in pure water container, and pure water liquid level is sent to controller, when liquid level is lower than predetermined threshold, controller controls to stop acid steaming cleaning.

Utilize spent acid leve monitor, waste water leve monitor, pure water leve monitor responds to spent acid liquid level, waste water liquid level and pure water liquid level automatically, and send controller to, thus once not meet setting threshold value, namely controller takes measures, such as, carry out reporting to the police, controlling automatic shutdown etc., thus personnel can be avoided to neglect and great chemical attack hidden danger.

Four, embodiment 4: cleaning method is steamed in acid

Below in conjunction with accompanying drawing, acid steaming cleaning method vessel being carried out to acid steaming cleaning in acid steaming washer according to the embodiment of the present invention is described.Acid is steamed washer and is had cleaning chambers and controller, and controller steams cleaning for controlling acid.

In step S4100, carry out acid and steam cleaning, with acid vapor cleaning vessel surfaces externally and internally.

In one example, concrete sub-step is as follows:

A) vessel to be cleaned are covered on sour vapour/water/casing air.

B) add original acid solution from addition funnel, and observe liquid level change, to suitable liquid level.

C) open computer software, setting heating-up temperature (not being above the boiling point) and time, after clicking " beginning " key, heater (such as ptc heater) starts heating.

D) temperature sensor (being such as built in the temperature sensor in original acid solution) constantly gathers the temperature signal of acid solution, and send computer to, software is according to setting value and actual value, and whether automatic decision continues heating or stop, thus keeps acid liquor temperature to be stabilized in setting value.

E) clean acid solution is lower than at the temperature of boiling point, slow evaporation, acid vapor passes through the acid vapor path of pipe in sleeve pipe (such as, acid vapor path as indicated by the label 220 of Fig. 2 and Fig. 4) rise, and from the acid vapor tap at surrounding and/or top (such as, acid vapor tap as indicated by the label 230 and 330 of Fig. 4) in be ejected on the inner surface of vessel, carry out acid cleaning, as shown in the schematic diagram of Figure 12.

F) cleaned sour vapour is condensed into acid solution, discharges system, as shown in the schematic diagram of Figure 13 through waste discharge mouth (such as, the waste discharge mouth of label 901 instruction of Fig. 8).

G) in program operation process, original acid solution level sensor (such as contactless liquid level sensor 13) as shown in Figure 7 constantly gathers the liquid level change of clean acid solution and original acid solution, and send computer to, when reaching the minimum preset, automatic terminator, and no matter whether the heat time arrives.

H) in program operation process, acid pickle level controller constantly collects spent acid container, and sends computer to, and when reaching the peak preset, the automatic terminator of meeting, no matter whether the heat time arrives.

I) when heated between when reaching preset value, system stops heating, and namely stop acid cleaning, the sour cleaning step of step S4100 completes, and namely system proceeds to the pure water rinsing stage automatically, namely proceeds to step S4200.

In step S4200, carry out pure water spray, with the vessel surfaces externally and internally of pure water spray after acid vapour cleaning.

Particularly, such as, ultra-pure water is extracted out from ultrapure water bottle by water pump, enter acid and steam purging system, then the confined space between carrier parts is such as full of, then under pressure, the water/gas access aperture of a part on outer tube (as shown in the label 310 of Fig. 3) enters the water/gas path (as shown in 210 of Fig. 2, Fig. 4) between inner and outer pipes, be ejected into vessel surface from the water/gas tap (shown in as shown in Figure 2, Figure 4 shows 320) outer tube, residual superincumbent acid solution is rinsed out; A part enters water/air spraying head type jet pipe, and sprays from the gondola water faucet at jet pipe top, and the acid solution that vessel outer surface is residual rinses out, and these are entrained with " addle " of acid solution, are also discharged to waste water bottle from waste discharge mouth, as shown in FIG. 14 and 15.

In program operation process, pure water fluid level controller constantly gathers the liquid level change of clean water, and sends computer to, and when reaching the minimum preset, the automatic terminator of meeting, no matter whether the heat time arrives.

In program operation process, exhausted water level controller constantly gathers the change of waste water bottle weight, and sends computer to, and when reaching the peak preset, the automatic terminator of meeting, no matter whether the heat time arrives.

When the pure water rinsing time reaches preset value, system stops rinsing, and step S4200 completes.System proceeds to the heated air drying stage automatically, proceeds to step S4300.

In step S4300, carry out heated air drying, the vessel surfaces externally and internally sprayed through pure water with heated air drying.

Particularly, such as air is drawn into pipeline by air compressor machine, and filter is entered after heating, filter out the pollutant such as particle and germ being greater than such as 0.1um, then enter acid and steam washer, be similar to the flow process of pure water rinsing, first be full of the whole confined space between carrier parts, then under pressure, water/gas access aperture on outer tube (as shown in the label 310 of Fig. 3) enters water/gas path between inner and outer pipes (as Fig. 2, Fig. 4 210 shown in), from the water/gas tap outer tube (as Fig. 2, shown in shown in Fig. 4 320) be ejected into vessel interior surface, inwall is dry, a part enters water/air spraying head type jet pipe, and sprays from the gondola water faucet at jet pipe top, and vessel outer surface is dry, and these are entrained with " humid air " of moisture, also discharges from waste discharge mouth, as shown in Figure 16 and Figure 17.

When reaching preset value when drying, system stops air compressor machine and air heater.Whole flow process all terminates.

Five, embodiment 5: integrated form original acid solution position control assembly

According to one embodiment of present invention, acid steaming washer is configured with integrated form original acid solution position control assembly.

Figure 18 (a) and (b) respectively illustrate three-dimensional view according to the integrated form of the embodiment of the present invention original acid solution position control assembly 800 (such as, can be used as the parts 8 shown in Fig. 7) and profile.Integrated form original acid solution position control assembly 800 is configured to the integration of addition funnel 810, liquid level tube 820 and removal waste fluid valve 830, original acid enters original acid liquor container inside by addition funnel 810, the liquid level of liquid level tube 820 reflects the liquid level of original acid liquor container, can effluent discharge when removal waste fluid valve 830 is opened.

Lid 840 covers on addition funnel 810, and fixed screw holes 850 and 860 is for being fixed in original acid liquor container 1 as shown in Figure 1 by original for integrated form acid solution position control assembly 800 by screw.

870 and 880 indicate upper interface section and lower interface part respectively, UNICOM inner with original acid liquor container.890 instruction removal waste fluid mouths, when opening a removal waste fluid valve 830, the solution in original acid liquor container 1 is discharged from removal waste fluid mouth 890 via lower interface part 880.

The integrated form original acid solution position control assembly 800 of the present embodiment can be concentrated and realize liquid feeding, discharge opeing and level monitoring function, particularly:

Liquid feeding: uncap 840, pours original acid solution into addition funnel 810, and liquid can enter original acid liquor container body interior by two paths up and down of upper interface section 870 and lower interface part 880 UNICOM.

Discharge opeing: rotary rowed waist valve 90 °, waste liquid will be discharged from removal waste fluid mouth 890.

Liquid level: by observing liquid level tube 820, current level situation can be estimated.

Liquid level tube, addition funnel, removal waste fluid valve integrate by the integrated form original acid solution position control assembly 800 of the present embodiment, both can observe liquid level change, can carry out liquid feeding again as funnel, all right removal waste fluid; Traditional funnel, liquid level tube and the removal waste fluid valve scheme disconnected from each other that avoids adds the trouble that funnel before and after acid solution needs installing/dismounting, thus avoids funnel and deposit pollution in process.

Six, embodiment 6: built-in temperature sensor device

As previously mentioned, steam in washer in traditional acid, for the temperature sensor for measuring original sour temperature, for avoiding temperature sensor to be corroded easily by high-temperature strong acid, temperature sensor is installed in container exterior, avoids contacting with strong acid, the temperature of what but such mounting means was measured is container outer wall, cannot reflect the true temperature of acid solution, usual solution temperature will differ 10-30 DEG C with the temperature of container outer wall, and the measure error of temperature is very large; And in prior art, typical temperature controller is many gears type, instead of continuously adjustabe type, probably can only set a temperature value, temperature setting accurately cannot be carried out.

According to embodiments of the invention, provide a kind of built-in temperature sensor device, temperature sensor is directly placed in acid solution.Controller set temperature threshold value, receives the temperature of acid liquor temperature sensor measurement, by this temperature compared with temperature threshold, and correspondingly control heater.

In one example, thermocouple type temperature sensor and matching component is adopted.The temp sensor device of this embodiment needs to solve two problems: 1, thermocouple wire directly can not contact with acid solution with thermocouple head; 2, the medium temperature that thermocouple head contacts will equal or substantially equal the temperature of acid solution.

In one example, adopt capillary thermocouple call wire (such as, external diameter is about 0.8mm), this thermocouple is penetrated in PTFE (polytetrafluoroethylene (PTFE)) capillary of internal diameter such as about 1mm, then PTFE capillary is through stay pipe endoporus, and enter stay pipe again after winding with one circuit on tube wrapping device, then two PTFE capillaries are extended outside bucket by the connecting hole on original acid liquor container wall again.

In one example, article two, thermocouple wire can be placed in polytetrafluoroethylene PTFE capillary, PTFE capillary is placed in stay pipe, and stay pipe is placed in original acid liquor container, and PTFE capillary is extended to outside original acid liquor container by the connecting hole on the wall of original acid liquor container.

In one example, described stay pipe lower end is connected with tube wrapping device, PTFE capillary in described stay pipe through stay pipe endoporus out, and the hole again through stay pipe after winding with one circuit on tube wrapping device enters stay pipe, then upwards extend along stay pipe, the last hole from stay pipe also extends to outside original acid liquor container by the connecting hole the wall of original acid liquor container, wherein thermocouple head part is in one week that described PTFE capillary is wound, and thermocouple head part and PTFE capillary contact.

In one example, described two thermocouple wires subtend can make contact to and seem a wire, and subtend contact portion becomes thermocouple head.

Label 441 indicates the thermocouple leads line part such as entering stay pipe 410, and its outer cover has PTFE (polytetrafluoroethylene (PTFE)) capillary.PTFE material can tolerate 250 degree of high temperature and strong acid and strong base corrosion, is equivalent to put on layer protecting film to thermocouple, serves etch-proof effect.PTFE material can replace by material that is high temperature resistant by other and strong acid and strong base corrosion herein, such as PFA (Perfluoroalkoxyalkane, perfluoroalkoxy resin) material.

Then thermocouple leads line is along stay pipe 410 to downward-extension, from stretching out close to the outlet (not shown) around tube wall 420 on stay pipe 410, then the entrance (not shown) after winding with one circuit on tube wrapping device 420 again on stay pipe 410 enters stay pipe 410, then upwards extend along stay pipe 410, finally stretch out from stay pipe 420 upper outlet (not shown), the part 442 of then stretching out from stay pipe 420 is stretched out outside original acid liquor container by the connecting hole original acid liquor container wall.Thermocouple induction 450 is positioned at one week that described PTFE capillary is wrapped in around tube wall 420, such as, be in as shown in the figure and locate immediately below tube wall 420, to contact with acid solution.By the revolution mode of tube wrapping device circle, the crackly problem of PTFE capillary that direct doubling can be avoided to cause.

The temperature sensed to make thermocouple induction head is the temperature of acid solution, carry out the diameter design of thermocouple wire and PTFE capillary, make thermocouple wire and PTFE capillary close contact, such as, diameter difference between PTFE capillary and thermocouple wire is less than 2mm, preferably be less than 1mm, be more preferably less than 0.5mm.

As shown in figure 20, PTFE integument 520 in thermocouple wire (two) 510 outer wrapping.The medium temperature that thermocouple induction head and thermocouple probe 530 directly contact should equal or substantially equal the temperature of acid solution, for this reason, thermocouple induction head close contact PTFE integument should be made, PTFE integument directly contacts acid solution, can think that the temperature of PTFE integument equals the temperature of acid solution.For ensureing the close contact of this thermocouple induction head and PTFE integument, in the example depicted in fig. 5, hot-press method is adopted to make probe and the perfect adaptation of PTFE wall in the position that namely thermocouple induction head pops one's head in.Further, enter for stopping cool ambient air and cause interference, wire devises multiple seal point 540, also adopt hot-press method sealing.Substituting as hot-press method, also can adopt welding method to reach the object of close contact.

Thermocouple leads line is such as capillary thermocouple call wire, and such as external diameter is about 0.8mm, and thermocouple gauge bread wraps up in the PTFE integument of wall thickness about such as 0.5mm.PTFE material can tolerate 250 degree of high temperature and strong acid and strong base corrosion, is equivalent to put on layer protecting film to thermocouple, serves etch-proof effect.And probe positions is fully combined with thin-walled by hot-press method or welding method, thermometric more accurately, quicker.

Seven, embodiment 7: original sour contactless liquid level sensor, spent acid leve monitor and waste water leve monitor

As previously mentioned, in the original acid liquor container of prior art, there is no liquid level sensor, consider that original acid liquor container works at high temperature (higher than in 100 DEG C of situations) for a long time, install if liquid level sensor is close to container outer wall, can be easy to cause the liquid level sensor being close to container outer wall overheated and lost efficacy or damaged.According to one embodiment of present invention, the original acid solution level sensor of original acid liquor container adopts non-contact type ultrasonic liquid level sensor, automatic induction level change, once liquid level is lower than settings, namely voltage signal is sent to software, software and automatic shutdown, avoid personnel's carelessness and fire disaster hidden danger; And according to the special liquid level sensor of the embodiment of the present invention, its measured surface does not directly contact with container outer wall, keep space that is certain, such as 2mm, avoid the Rapid Accumulation of heat and the problem easily losing efficacy or damaged, turn avoid measured surface and solution apart from too far away and lose due sensitivity problem.

As shown in Figure 21 (b), ultrasonic liquid level sensor 13 is arranged on the outer surface of original acid liquor container 1, and and there is distance d, d between the wall of original acid liquor container 1 and be greater than zero.

Original acid liquor container according to the embodiment of the present invention adopts contactless specially designed ultrasonic liquid level sensor, be arranged on the outer surface of container, and not with container surfaces contact, both avoided sensor and directly contacted with acid solution the problem be corroded, and turn avoid sensor and directly contact with the container of high temperature and the problem damaged of the circuit caused.

Below in conjunction with accompanying drawing description according to the spent acid level monitoring device of the embodiment of the present invention and waste water level monitoring device.

In one example, spent acid level monitoring device and waste water level monitoring device adopt pressure sensor, spent acid container or waste water container are positioned on pressure sensor, are sensed the level condition of spent acid or waste water by the weight change sensing spent acid container or waste water container.Described spent acid container or waste water container such as ampuliform form, hereinafter referred to as spent acid bottle or waste water bottle.

According to one embodiment of the invention, pressure sensor adopts weight resistance strain type pressure sensor, compression weight sensor constantly gathers the change of the pressure that spent acid bottle weight causes, and send computer to, when reaching the peak preset, can automatically stop acid and steam cleaning procedure, avoid personnel's carelessness and great chemical attack hidden danger.

In one example, placement tray 1020 under spent acid bottle, preferably receiving flask pallet 1020 adopts flange to design, and can hold the acid solution of the water clock of about 20mL, avoids these acid solution sinuous flows, prevents acid solution from dripping to sensor internal.In one example, sensor 1010 devises leakage outlet 1030 at such as its support place, thus just in case sensor internal has acid solution to enter, can discharge in time.

Described pressure sensor 1010 and/or other parts, such as pallet, sensor fixed screw holes 1040, data string holes 1050 can be carried out PTFE surface spraying or itself namely be adopted PTFE material to make, can anti-acid liquid corrosion.

It should be noted that, spent acid leve monitor or waste water leve monitor also can adopt non-contact ultrasonic liquid level sensor or infrared ray liquid level sensor.

According to one embodiment of present invention, the instruction that the data of all the sensors collection and computer software send all is transmitted by bluetooth or wifi mode, controller (host computer and slave computer) can be placed on outside fume hood, avoid acid gas corrosion, also a saving fume hood space, user of service is also remote controlled.

Eight, embodiment 8:PTC heater

The heater for heating original acid solution according to the embodiment of the present invention is described below.

As previously mentioned, the original acid liquor container of prior art adopts infrared lamp or resistance wire to be used as thermal source, is naked light, the inflammable gas of surrounding of easily igniting; And once temperature controller lost efficacy, continuation is heated by infrared lamp or resistance wire, causes instrument to burn the great risk of even laboratory fire.

Original according to an embodiment of the invention acid liquor container adopts ptc heater, due to PTC (PositiveTemperatureCoefficient), i.e. positive temperature coefficient effect, electric current raises by causing temperature after element, namely the temperature of heater rises, once exceed certain temperature (Curie temperature), its resistance value along with the rising of temperature be almost increasing in phase step type, thus Limited Current increases, so the decline of electric current causes component temperature to reduce.And the reduction of temperature can make the reduction of resistance value, thus circuital current increases, and component temperature raises.Go round and begin again, make temperature remain on particular range.Ptc heater adstante febre is not rubescent, and the flames of anger is nonflammable.Even if temperature controller lost efficacy, ptc heater also can not continue to be heated beyond Curie temperature, can not produce danger of combustion.

According to the preferred embodiment of the present invention, work for a long time for original acid liquor container under highly corrosive environments, ptc heater is easy to by the problem of acid gas corrosion, special design has been carried out to heater, comprise following any one of, but be not limited to these, other design can be carried out:

(1) ptc heater self has done PTFE surface spraying, can effectively resist acid solution acid gas corrosion;

(2) main body of original acid liquor container adopts nested type to be connected design with base, the space that formation one is closed between, whole ptc heater is arranged on this space closed, and whole ptc heater is wrapped up by main body and base, has stopped the contact with extraneous acid gas;

(3) in addition, consider the uniformity of heating, specialized designs area much larger than ptc heater heating surface, thinner thickness is such as thick is the heat conducting disk of 3mm, the bottom of this heat conducting disk and original acid liquor container fits tightly, carry out heat conduction, can effectively improve because ptc heater can not be fitted the whole bottom of original acid liquor container main body and the problem of the heat transfer inequality caused completely.Heat conducting disk can be the extraordinary fine aluminium material of heat conductivility, and can carry out PTFE surface spraying.

As shown in Figure 23 (a) He (b), heater 700 comprises ptc heater main body 710 and heat conducting disk 720.The area of heat conducting disk 720 is much larger than the area of ptc heater main body 710, and preferably, the former is equal to, or greater than 1.5 times of the latter, and the area of heat conducting disk 720 can design according to the bottom area of original acid liquor container main body, and such as the two area is suitable; The end face of heat conducting disk 720 bottom surface and ptc heater main body 710 fits tightly in addition, carries out heat conduction, can effectively improve because ptc heater can not be fitted the whole bottom of original acid liquor container main body and the problem of the heat transfer inequality caused completely.

The preferred embodiment of the present invention is described in conjunction with the preferred embodiment of the present invention above with reference to accompanying drawing, but these are only exemplary, be not exhaustive, those skilled in the art can change the parts in embodiment, change, replace, add, combine etc. as required.

Such as, in one example, purging system is steamed in acid can also comprise display, such as, can be touch LCD screen, for showing wash phase present at present, the liquid level of clean acid solution, the liquid level, the liquid level of waste water, the temperature of clean acid solution etc. of spent acid acid solution.

In one example, purging system is steamed in acid can also comprise alarm, when the liquid level of such as clean acid solution, the liquid level of spent acid acid solution, the liquid level of waste water, the temperature of clean acid solution are more than predetermined threshold, in every way, the mode such as such as buzzing, message pop-up, vibration, warning lamp provides warning to operative employee.Described warning message can also be sent on operative employee, gerentocratic mobile phone.

Washer is steamed in the acid of the embodiment of the present invention can be used for scavenge pipe formula vessel, and the shape for vessel does not have particular/special requirement, as long as vessel can be enclosed within bilayer sleeve.The acid steaming washer of the embodiment of the present invention is particularly suitable for cleaning for the tubular type vessel cleaning, sterilize, dry requirement is higher, is particularly suitable for the tubular type vessel to the extra high vestige of cleaning requirement or the experiment of super mark analysis.

In description above, acid solution is evaporated in the Asia mode of boiling, and to obtain high purity acid steam, utilizes such high purity acid steam to clean vessel.But this is only example, and the present invention is also suitable for utilizing other modes to evaporate---mode of such as seething with excitement is evaporated---, and the acid vapor obtained carries out the method for vessel cleaning.

Be described above various embodiments of the present invention, above-mentioned explanation is exemplary, and non-exclusive, and be also not limited to disclosed each embodiment.When not departing from the scope and spirit of illustrated each embodiment, many modifications and changes are all apparent for those skilled in the art.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.

Claims

1. a washer is steamed in the acid for carrying out acid vapor cleaning to vessel, comprising:

Original acid liquor container, for holding original acid solution;

Heater, for heating original acid liquor container part, make original acid solution be evaporated to hot acid steam, hot acid air enters cleaning chambers;

Cleaning chambers, is placed in cleaning chambers at vessel, wherein utilizes the described hot acid steam entering cleaning chambers to carry out acid vapor cleaning to described vessel;

Controller, steams cleaning for the operation controlling all parts to carry out acid;

Acid liquor temperature sensor, is placed in the inside of original acid solution, for measuring the temperature of original acid solution body;

Its middle controller set temperature threshold value, receives the temperature of acid liquor temperature sensor measurement, by this temperature compared with temperature threshold, and correspondingly control heater.

2. washer is steamed in acid according to claim 1,

Described acid liquor temperature sensor is thermocouple type temperature sensor, article two, thermocouple wire is placed in polytetrafluoroethylene PTFE or perfluoroalkoxy resin PFA capillary, PTFE or PFA capillary is placed in stay pipe, stay pipe is placed in original acid liquor container, PTFE or PFA capillary is extended to outside original acid liquor container by the connecting hole on the wall of original acid liquor container.

3. washer is steamed in acid according to claim 2,

Described stay pipe lower end is connected with tube wrapping device, PTFE or PFA capillary in described stay pipe through stay pipe endoporus out, and the hole again through stay pipe after winding with one circuit on tube wrapping device enters stay pipe, then upwards extend along stay pipe, the last hole from stay pipe is also extended to outside original acid liquor container by the connecting hole the wall of original acid liquor container

Wherein thermocouple head part is in one week that described PTFE or PFA capillary is wound, and thermocouple head part and PTFE or PFA capillary contact.

4. washer is steamed in acid according to claim 3,

Described two thermocouple wire subtends make contact to and seem a wire, and subtend contact portion becomes thermocouple head.

5. washer is steamed in acid according to claim 1,

Described acid liquor temperature sensor is thermocouple type temperature sensor, and surface parcel PTFE or the PFA integument of thermocouple wire, the position of thermocouple probe adopts hot-press method that thermocouple probe and PTFE or PFA integument are combined closely.

6. washer is steamed in acid according to claim 5,

Thermocouple wire exists one or more seal point, adopts at seal point place hot-press method that thermocouple wire and PTFE or PFA integument are combined closely.

7. washer is steamed in acid according to claim 1,

Described controller can continuity ground set temperature threshold value.

8. washer is steamed in acid according to claim 1, also comprises:

Bilayer sleeve, is installed in cleaning chambers part, has inner and outer tubes, inner and outer tubes close contact, and when carrying out acid to tubular type vessel and steaming cleaning, vessel are enclosed in bilayer sleeve outside,

Wherein the surrounding of inner and outer tubes and/or top have the acid vapor tap of connection, and acid vapor tap is communicated with the center of interior pipe,

The outer surface of interior pipe has axial groove, outer pipe bottom has the water/gas access aperture that water supply/air enters, and outer tube being distributed with the water/gas tap of water supply/air discharge, the groove on described interior pipe is communicated with water/gas access aperture and is communicated with the water/gas tap on outer tube

Under the control of the controller, carry out

Acid vapor cleaning step, heater heats the acid solution in original acid liquor container part, and the acid vapor obtained enters the interior tube hub in described bilayer sleeve, and flows out through vapor peracids tap, is sprayed onto the inner surface of tubular type vessel;

Water spray step, after acid vapor cleaning step, water to enter into the groove on described inner tube outer surface through the water/gas access aperture of described outer pipe bottom via pressure effect, and from the water/gas tap ejection outer tube, be ejected into the inner surface of vessel; And

Heated air drying step, after water rinsing step, air through heating enters into the groove on described inner tube outer surface under pressure through the water/gas access aperture of described outer pipe bottom, and from the water/gas tap ejection outer tube, is ejected into the inner surface of vessel.

9. washer is steamed in acid according to claim 8, also comprises:

Be installed on the water/air spraying head type jet pipe in cleaning chambers part, its top is gondola water faucet form, is distributed with multiple pore, sprays from pore for entering water/air spraying head type jet pipe.

10. washer is steamed in acid according to claim 8, has waste discharge mouth, discharge for any one of having cleaned in the spent acid of vessel, waste water, waste gas from waste discharge mouth bottom described cleaning chambers wall.