CN111238176B - Centrifugal dehydration type underwater local drying air chamber and drying process - Google Patents
Centrifugal dehydration type underwater local drying air chamber and drying process Download PDFInfo
- Publication number
- CN111238176B CN111238176B CN201910812832.6A CN201910812832A CN111238176B CN 111238176 B CN111238176 B CN 111238176B CN 201910812832 A CN201910812832 A CN 201910812832A CN 111238176 B CN111238176 B CN 111238176B
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- China
- Prior art keywords
- pipeline
- dewatering
- central
- air chamber
- centrifugal
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Links
- 238000001035 drying Methods 0.000 title claims abstract description 27
- 230000018044 dehydration Effects 0.000 title claims abstract description 25
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000011261 inert gas Substances 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 22
- 238000003466 welding Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/02—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in buildings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/02—Applications of driving mechanisms, not covered by another subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/08—Drying solid materials or objects by processes not involving the application of heat by centrifugal treatment
Abstract
The invention discloses a centrifugal dehydration type underwater local drying air chamber, which comprises a base for placing a workpiece, a central pipeline, a dehydration pipeline, an external culvert and a driving mechanism for driving the dehydration pipeline to rotate, wherein the central pipeline is arranged above the base, the dehydration pipeline is provided with the central pipeline which is filled with high-pressure air, the central pipeline is rotated, the dehydration pipeline is rotated at high speed to form centrifugal force to discharge water through taking the central air chamber as a centrifugal drainage center, the outer layer of rotating water flow forms local negative pressure to take away the water of a dehydration layer, and finally, the surface of the workpiece and the central air chamber can be dried and protected by introducing high-temperature inert gas into the central air chamber, so that the drying and stability of the underwater air chamber are ensured.
Description
Technical Field
The invention relates to a centrifugal dewatering type underwater local drying air chamber for carrying out hot working on an underwater metal part and a drying process.
Background
With the great development of China in the fields of deep sea, nuclear power and the like, the installation, inspection, maintenance, replacement and the like of underwater parts become the main problems facing the future. Due to inherent characteristics of water environment impurities, pressure, heat absorption, water molecule decomposition and the like, long-term working time of checking, welding, thermal spraying, cutting and the like of underwater components is taken as a difficult problem puzzled with related work in the field and a technical bottleneck which must be solved. In recent years, the proposal of an underwater local dry method provides a new thought for solving the problem, and the principle is that a dry air environment is formed in a small underwater local range so as to facilitate welding, cutting and other operations and ensure the quality.
Disclosure of Invention
The invention aims to provide a drying air chamber and a drying process for forming local stability in an underwater environment.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a centrifugal dehydration formula is local dry air chamber under water, is in including the base that is used for placing the work piece, setting central pipeline, dehydration pipeline, outside culvert pipe and the drive of base top dehydration pipeline pivoted actuating mechanism, the upper portion of central pipeline is provided with high-pressure gas entry, the pipe wall of dehydration pipeline is provided with a plurality of intercommunication dehydration pipeline both sides's wash port inside and outside, have a plurality of guide gas rotatory passageway on the outside culvert pipe, dehydration pipeline with central pipeline is concentric and rotate and set up central pipeline with between the base, outside culvert pipe cover is established outside central pipeline and the dehydration pipeline.
Preferably, the base is provided with a support body for placing the workpiece, and the support body is a cone frustum or a cylinder frustum.
Further preferably, the support is disposed in a recess in the base surface.
Further preferably, the peripheral wall of the groove is circular and has an inner diameter matching with the inner diameter of the dewatering pipe, and the lower end of the dewatering pipe is disposed in the groove.
Preferably, the drive mechanism is provided on the inner side of the central tube or on the base.
Preferably, a gap is formed between the outer culvert and the central pipe, and a gap is formed between the dewatering pipes.
Preferably, the dewatering pipe is a transparent pipe made of a transparent material.
Preferably, the channels in the outer culvert pipe are arranged downwards in the clockwise or anticlockwise rotation direction of the inner wall of the pipeline.
The drying process of the centrifugal dehydration type underwater local drying air chamber comprises the following steps of:
(1) Placing a workpiece on the base and installing the central pipe, the dewatering pipe and the outer culvert;
(2) Introducing pressure gas higher than water pressure into a high-pressure gas inlet of the central pipeline, and discharging liquid in the central pipeline and the dewatering pipeline to form a central air chamber;
(3) The driving mechanism drives the dewatering pipeline to rotate, and water in the central air chamber is brought out of the dewatering pipeline from a drainage hole on the dewatering pipeline through centrifugal force;
(4) And heating the pressure gas introduced into the central pipeline, so as to dry the air in the central air chamber.
Preferably, the pressure gas is introduced into the outer culvert to form a rotating water flow around the dewatering layer at the outlet.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
because the invention is provided with the central pipeline which is filled with high-pressure gas and the rotary dewatering pipeline, the central air chamber is realized to be used as a centrifugal drainage center through the pressure gas, the high-speed rotary porous dewatering pipeline forms centrifugal force to discharge water, the outer layer rotary water flow forms local negative pressure to take away the water in the dewatering layer, and finally, the high-temperature inert gas can be filled into the central air chamber to dry and protect the surface of a workpiece and the central air chamber, thereby guaranteeing the drying and stability of the underwater air chamber. Compared with the prior art, the invention has the advantages of strong adaptability, stable structure, small volume, flexible operation and controllable dryness of the air chamber.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic top view of the base;
FIG. 3 is a schematic view of an external culvert from below;
fig. 4 is a schematic view of the use state of the present invention.
In the above figures: 1. a base; 11. a support body; 12. a groove; 13. a base sucker; 2. a workpiece; 3. a dewatering pipe; 31. a drain hole; 4. a central conduit; 5. an external culvert; 51. a channel; 6. a central air chamber.
Detailed Description
The invention is further described below with reference to an embodiment shown in the drawings in which:
referring to fig. 1-4, a centrifugal dehydration type underwater local drying air chamber comprises a base 1 for placing a workpiece 2, a central pipeline 4 arranged above the base 1, a dehydration pipeline 3, an external culvert 5 and a driving mechanism (not shown in the figure) for driving the dehydration pipeline 3 to rotate, wherein a high-pressure air inlet is formed in the upper part of the central pipeline 4, a plurality of drain holes 31 which are communicated with the inner side and the outer side of the dehydration pipeline 3 are formed in the pipe wall of the dehydration pipeline 3, a plurality of channels 51 for guiding air to rotate are formed in the external culvert 5, the dehydration pipeline 3 is concentric with the central pipeline 4 and is rotatably arranged between the central pipeline 4 and the base 1, and the external culvert 5 is sleeved outside the central pipeline 4 and the dehydration pipeline 3.
Specifically, the high-pressure gas enough to overcome the water pressure is introduced from the high-pressure gas inlet of the central pipeline 4, the liquid in the central pipeline 4 and the dewatering pipeline 3 is discharged, the dewatering pipeline 3 is driven to rotate at a high speed by the driving mechanism, the water in the central air chamber 6 is brought out of the dewatering pipeline 3 through the centrifugal force from the water discharge hole 31 on the dewatering pipeline 3, then the high-temperature pressure gas is introduced from the high-pressure gas inlet for drying the workpiece 2, and finally the inert protective gas is introduced from the high-pressure gas inlet, so that the environment in the central air chamber 6 is suitable for welding and other procedures.
In this embodiment, the base 1 has a support 11 on which the workpiece 2 is placed, where the support 11 is a truncated cone, and the workpiece 2 is placed on top of the truncated cone. The support 11 is arranged in a groove 12 on the surface of the base 1. The peripheral wall of the groove 12 is circular, the inner diameter of the groove is matched with the inner diameter of the dewatering pipeline 3, and the lower end of the dewatering pipeline 3 is arranged in the groove 12. The truncated cone-shaped supporting body 11 can drain water faster, and the grooves 12 can facilitate the installation of the dewatering pipe 3. In addition, the lower part of the base 1 is also provided with a base sucker 13 which is convenient to fix.
The drive mechanism is arranged on the inner side of the central pipe 4 or on the base 1. A gap is formed between the outer culvert 5 and the central pipeline 4, and a gap is formed between the outer culvert 5 and the dewatering pipeline 3.
The dewatering pipeline 3 is a transparent pipeline made of transparent materials. Thereby facilitating the observation of the work 2 in the dewatering pipe 3 from the outside.
In addition, the channels 51 in the outer culvert pipes 5 are arranged in a way that the inner wall of the pipeline rotates anticlockwise and downwards along the axial direction, the pressure gas is introduced into the channels 51 from the upper end of the outer culvert pipes 5, then the gas flow is discharged from the mouth of the outlet channels 51 at the lower end of the outer culvert pipes 5 along the channels 51 in a spiral mode, the water flow is presumed to form a rotary water flow around the dewatering pipeline 3, and the rotary water flow takes away the water discharged from the dewatering pipeline 3.
The drying process of the centrifugal dewatering type underwater local drying air chamber of the embodiment comprises the following steps of:
(1) Placing a workpiece 2 on the base 1 and installing the central pipe 4, the dewatering pipe 3 and the outer culvert 5;
(2) Introducing pressure gas higher than water pressure into a high-pressure gas inlet of the central pipeline 4, and discharging liquid in the central pipeline 4 and the dewatering pipeline 3 to form a central air chamber 6;
(3) The driving mechanism drives the dewatering pipeline 3 to rotate, and the water in the central air chamber 6 is carried out of the dewatering pipeline 3 from the water drain holes 31 on the dewatering pipeline 3 through centrifugal force;
(4) The outer culvert 5 is filled with pressurized gas to form a rotating water flow around the dewatering layer at the outlet.
(5) The pressurized gas introduced into the central duct 4 is heated, thereby drying the air in the central air chamber 6.
Because the embodiment is provided with the central pipeline 4 and the rotary dewatering pipeline 3 which are filled with high-pressure gas, the central air chamber 6 is realized through the pressure gas to serve as a centrifugal drainage center, the high-speed rotary porous dewatering pipeline 3 forms centrifugal force to discharge water, the outer layer rotary water flow forms local negative pressure to take away dewatering layer water, and finally, high-temperature inert gas can be filled into the central air chamber 6 to dry and protect the surface of the workpiece 2 and the central air chamber 6, so that the drying and stability of the underwater air chamber are ensured.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (7)
1. A centrifugal dehydration type underwater local drying air chamber is characterized in that: the device comprises a base for placing a workpiece, a central pipeline, a dewatering pipeline, an outer culvert pipe and a driving mechanism, wherein the central pipeline is arranged above the base, the driving mechanism is used for driving the dewatering pipeline to rotate; the external culvert pipe is used for pushing water flow around the dewatering pipeline to form rotary water flow so as to take away water discharged from the dewatering pipeline by air flow after pressure gas is introduced into the channel from the upper end of the external culvert pipe.
2. The centrifugal dewatering type underwater local drying air chamber according to claim 1, wherein: the base is provided with a supporting body for placing the workpiece, and the supporting body is a truncated cone or a cylindrical table.
3. A centrifugal dewatering submerged partial drying chamber according to claim 2, characterized in that: the support body is arranged in the groove on the surface of the base.
4. A centrifugal dewatering submerged localized drying chamber according to claim 3, wherein: the outer peripheral wall of the groove is circular, the inner diameter of the groove is matched with the inner diameter of the dewatering pipeline, and the lower end of the dewatering pipeline is arranged in the groove.
5. The centrifugal dewatering type underwater local drying air chamber according to claim 1, wherein: the driving mechanism is arranged on the inner side of the central pipeline or the base.
6. The centrifugal dewatering type underwater local drying air chamber according to claim 1, wherein: the dehydration pipeline is a transparent pipeline made of transparent materials.
7. A process for drying a centrifugal dewatering type underwater local drying chamber as claimed in any one of claims 1 to 6, comprising the steps of:
(1) Placing a workpiece on the base and installing the central pipe, the dewatering pipe and the outer culvert;
(2) Introducing pressure gas higher than water pressure into a high-pressure gas inlet of the central pipeline, and discharging liquid in the central pipeline and the dewatering pipeline to form a central air chamber;
(3) The driving mechanism drives the dewatering pipeline to rotate, and water in the central air chamber is brought out of the dewatering pipeline from a drainage hole on the dewatering pipeline through centrifugal force;
(4) Introducing pressure gas into the outer culvert pipe to form rotary water flow around the dewatering layer at the outlet;
(5) And heating the pressure gas introduced into the central pipeline, so as to dry the air in the central air chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910812832.6A CN111238176B (en) | 2019-08-30 | 2019-08-30 | Centrifugal dehydration type underwater local drying air chamber and drying process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910812832.6A CN111238176B (en) | 2019-08-30 | 2019-08-30 | Centrifugal dehydration type underwater local drying air chamber and drying process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111238176A CN111238176A (en) | 2020-06-05 |
| CN111238176B true CN111238176B (en) | 2024-02-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910812832.6A Active CN111238176B (en) | 2019-08-30 | 2019-08-30 | Centrifugal dehydration type underwater local drying air chamber and drying process |
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| Country | Link |
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| CN (1) | CN111238176B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101553337A (en) * | 2006-11-07 | 2009-10-07 | 阿海珐核能公司 | Device and method for automatic under-water welding for making a welding joint on a surface |
| CN103223552A (en) * | 2013-04-28 | 2013-07-31 | 江苏科技大学 | Centrifuging draining-half dry type underwater friction stir welding set |
| CN104722973A (en) * | 2015-02-03 | 2015-06-24 | 华南理工大学 | Local dry type drainage device for underwater welding robot and drainage method thereof |
| CN107639319A (en) * | 2017-09-29 | 2018-01-30 | 中广核研究院有限公司 | Nuclear power station Underwater Welding robot, welding system and welding method |
| CN109047988A (en) * | 2018-09-29 | 2018-12-21 | 中国化学工程第六建设有限公司 | Welding method in high humidity environment |
| CN109277673A (en) * | 2018-11-22 | 2019-01-29 | 江苏海事职业技术学院 | A kind of depressed underwater local dry cavity GMAW welding torch of structure of bilayer |
| CN211451575U (en) * | 2019-08-30 | 2020-09-08 | 苏州热工研究院有限公司 | Centrifugal dehydration formula is dry air chamber of local under water |
-
2019
- 2019-08-30 CN CN201910812832.6A patent/CN111238176B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101553337A (en) * | 2006-11-07 | 2009-10-07 | 阿海珐核能公司 | Device and method for automatic under-water welding for making a welding joint on a surface |
| CN103223552A (en) * | 2013-04-28 | 2013-07-31 | 江苏科技大学 | Centrifuging draining-half dry type underwater friction stir welding set |
| CN104722973A (en) * | 2015-02-03 | 2015-06-24 | 华南理工大学 | Local dry type drainage device for underwater welding robot and drainage method thereof |
| CN107639319A (en) * | 2017-09-29 | 2018-01-30 | 中广核研究院有限公司 | Nuclear power station Underwater Welding robot, welding system and welding method |
| CN109047988A (en) * | 2018-09-29 | 2018-12-21 | 中国化学工程第六建设有限公司 | Welding method in high humidity environment |
| CN109277673A (en) * | 2018-11-22 | 2019-01-29 | 江苏海事职业技术学院 | A kind of depressed underwater local dry cavity GMAW welding torch of structure of bilayer |
| CN211451575U (en) * | 2019-08-30 | 2020-09-08 | 苏州热工研究院有限公司 | Centrifugal dehydration formula is dry air chamber of local under water |
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|---|---|
| CN111238176A (en) | 2020-06-05 |
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