CN108253404B - Pipeline inner wall vacuum drying device - Google Patents
Pipeline inner wall vacuum drying device Download PDFInfo
- Publication number
- CN108253404B CN108253404B CN201810133993.8A CN201810133993A CN108253404B CN 108253404 B CN108253404 B CN 108253404B CN 201810133993 A CN201810133993 A CN 201810133993A CN 108253404 B CN108253404 B CN 108253404B
- Authority
- CN
- China
- Prior art keywords
- pipeline
- inlet structure
- vacuum pump
- air inlet
- vacuum drying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001291 vacuum drying Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 238000000605 extraction Methods 0.000 claims abstract description 4
- 210000003437 trachea Anatomy 0.000 claims description 9
- 239000000498 cooling water Substances 0.000 claims description 7
- 238000005336 cracking Methods 0.000 abstract description 5
- 238000011900 installation process Methods 0.000 abstract description 5
- 238000003860 storage Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract description 3
- 238000005536 corrosion prevention Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/48—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
- F22B37/50—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers for draining or expelling water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/16—Arrangements for water drainage
-
- 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
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a vacuum drying device for the inner wall of a pipeline, which comprises a screw vacuum pump, a pipeline, a rubber plug, an air pipe and an air inlet structure, wherein an air extraction opening of the screw vacuum pump is communicated with one end of the air inlet structure in a sealing way through the pipeline, an air escape valve is arranged at the other end of the air inlet structure, the side wall of the air inlet structure is connected with one end of the air pipe in a sealing way, the other end of the air pipe is connected with the pipeline in a sealing way through the rubber plug, a ball valve is arranged on the pipeline, which is communicated with the air inlet structure, a needle valve and the ball valve are connected in parallel on the pipeline, and the needle valve is communicated with a dew point meter sensor through the pipeline. The device has the advantages of simple structural design, convenient use, time saving, efficiency improvement, corrosion prevention caused by accumulated water, and quality accident prevention caused by pipeline frost cracking caused by low-temperature icing in transportation, storage and installation processes due to accumulated water of products.
Description
Technical Field
The invention belongs to the technical field of pipeline processing, and particularly relates to a pipeline inner wall vacuum drying device for drying a pipeline after a water pressure test is carried out on workpieces such as a boiler pressure vessel and the like.
Background
After the water pressure test is carried out on the workpieces such as the boiler pressure vessel, particularly, a large number of bent pipes exist on the workpieces, water stored in the bent pipes cannot be completely discharged, accumulated water can cause corrosion and rust of pipelines to influence the service life of products, and in addition, accumulated water of the products can cause quality accidents of frost cracking of the pipelines caused by low-temperature icing in the transportation, storage and installation processes, so that the water in the pipelines cannot be completely removed by purging with compressed air.
Disclosure of Invention
The invention aims to provide a vacuum drying device for the inner wall of a pipeline, which overcomes the defects in the prior art, has the advantages of simple structural design, convenient use, time saving, efficiency improvement, corrosion caused by accumulated water prevention, and quality accidents of pipeline frost cracking caused by low-temperature icing in transportation, storage and installation processes possibly caused by accumulated water of products.
In order to achieve the above design purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a pipeline inner wall vacuum drying device, includes screw vacuum pump, pipeline, rubber end cap, trachea, inlet structure, the extraction opening of screw vacuum pump passes through pipeline and inlet structure one end sealing connection, and the inlet structure other end is equipped with the air escape valve, inlet structure lateral wall sealing connection trachea one end, the trachea other end pass through rubber end cap sealing connection pipeline, be equipped with the ball valve on the pipeline of screw vacuum pump and inlet structure intercommunication, the needle valve is parallelly connected on this pipeline with the ball valve, and the needle valve passes through pipeline switch-on dew point meter sensor.
The air inlet structure is sealed and communicated with a pressure gauge, and the pressure gauge measures a vacuum negative pressure value.
The dew point meter sensor is connected to the electric cabinet through a line.
And the vacuum pump is provided with a cooling water inlet and a cooling water outlet.
And the vacuum pump is also provided with a muffler, and the water-containing gas is discharged through the muffler.
The vacuum drying device for the inner wall of the pipeline has the beneficial effects that: the device has the advantages of simple structural design, convenient use, time saving, efficiency improvement, corrosion prevention caused by accumulated water, and quality accident prevention caused by pipeline frost cracking caused by low-temperature icing in transportation, storage and installation processes due to accumulated water of products.
At normal temperature, water is evaporated into steam under a certain vacuum negative pressure, a vacuum suction system is established in the equipment, stored water is evaporated, and whether the inner wall of a pipeline is dried or not is determined by detecting the water content of an exhaust port in real time, so that the drying purpose is achieved.
Its advantage still includes specifically:
1. the water in the pipeline workpiece can be completely evaporated at normal temperature, and corrosion caused by accumulated water is avoided.
2. The water in the pipeline workpiece can be completely evaporated at normal temperature, so that quality accidents of pipeline frost cracking caused by low-temperature icing in the transportation, storage and installation processes due to product ponding can be avoided.
3. Avoiding lifting the workpiece, turning over and draining water, saving time and improving efficiency.
4. The pipeline workpiece can be slightly heated, and the evaporation speed can be improved.
5. The rubber plug can form a seal under vacuum negative pressure, and the connection is quick.
Drawings
Fig. 1 is a schematic view of a vacuum drying apparatus for an inner wall of a pipe according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The concrete structure is shown in figure 1, pipeline inner wall vacuum drying device, including screw vacuum pump 2, pipeline 10, rubber end cap 11, trachea 12, air inlet structure 13, the extraction opening of screw vacuum pump 2 passes through pipeline and air inlet structure 13 one end sealing connection, and the air inlet structure 13 other end is equipped with bleeder 14, air inlet structure 13 lateral wall sealing connection trachea 12 one end, the trachea 12 other end passes through rubber end cap 11 sealing connection pipeline 10, be equipped with ball valve 6 on the pipeline that screw vacuum pump 2 and air inlet structure 13 communicate, needle valve 7 is parallelly connected on this pipeline with ball valve 6, needle valve 7 passes through pipeline switch-on dew point instrument sensor 8, during the use, pipeline inner wall vacuum drying device establishes the hookup with pipeline 10, closes needle valve 7 earlier, opens ball valve 6, breaks off dew point instrument sensor 8 passageway, opens screw vacuum pump 2, quick exhaust, makes the atmospheric pressure in pipeline 10 drop to the moisture evaporation negative pressure, opens 7, closes ball valve 6, makes the exhaust gas pass through dew point instrument sensor 8, when exhaust gas moisture content reaches certain numerical value, then the interior moisture of pipeline 10 is discharged completely.
The air inlet structure 13 is sealed and communicated with the pressure gauge 9, and the pressure gauge 9 measures a vacuum negative pressure value.
The dew point meter sensor 8 is connected to the electric cabinet 1 through a circuit, the dew point meter sensor 8 measures the moisture content of the exhaust port in real time, and feeds back data, and measured values are displayed in the electric cabinet 1.
The vacuum pump 2 is provided with a cooling water inlet 4 and a cooling water outlet 5, so that cooling water is injected into the equipment, the vacuum pump 2 is cooled, and the service life of the equipment is prolonged.
And the vacuum pump 2 is also provided with a muffler 3, and the water-containing gas is discharged through the muffler 3, so that noise is reduced.
The foregoing has been a further detailed description of the invention with reference to specific preferred embodiments thereof, so that those skilled in the art will readily understand and practice the invention and will not be considered to be limited to such descriptions. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the inventive concept. Accordingly, it is intended that all such modifications as would be within the scope of this invention be included within the scope of this invention.
Claims (5)
1. The utility model provides a pipeline inner wall vacuum drying device which characterized in that: including screw vacuum pump, pipeline, rubber end cap, trachea, inlet structure, the extraction opening of screw vacuum pump passes through pipeline and inlet structure one end sealing connection, and the inlet structure other end is equipped with the bleeder valve, inlet structure lateral wall sealing connection trachea one end, the trachea other end passes through rubber end cap sealing connection pipeline, be equipped with the ball valve on the pipeline of screw vacuum pump and inlet structure intercommunication, the needle valve is parallelly connected on this pipeline with the ball valve, and the needle valve passes through pipeline switch-on dew point meter sensor.
2. The apparatus according to claim 1, wherein the vacuum drying apparatus comprises: the air inlet structure is sealed and communicated with a pressure gauge, and the pressure gauge measures a vacuum negative pressure value.
3. The apparatus according to claim 2, wherein the vacuum drying apparatus comprises: the dew point meter sensor is connected to the electric cabinet through a line.
4. A vacuum drying apparatus for an inner wall of a pipe according to claim 3, wherein: and the vacuum pump is provided with a cooling water inlet and a cooling water outlet.
5. The apparatus according to claim 4, wherein: and the vacuum pump is also provided with a muffler, and the water-containing gas is discharged through the muffler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810133993.8A CN108253404B (en) | 2018-02-09 | 2018-02-09 | Pipeline inner wall vacuum drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810133993.8A CN108253404B (en) | 2018-02-09 | 2018-02-09 | Pipeline inner wall vacuum drying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108253404A CN108253404A (en) | 2018-07-06 |
| CN108253404B true CN108253404B (en) | 2024-01-19 |
Family
ID=62745068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810133993.8A Active CN108253404B (en) | 2018-02-09 | 2018-02-09 | Pipeline inner wall vacuum drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108253404B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974402B (en) * | 2019-04-25 | 2024-03-26 | 浙江诚信医化设备有限公司 | Ball valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2108254A (en) * | 1981-09-29 | 1983-05-11 | Pipeline Service Sa | Method of drying pipelines |
| KR200358098Y1 (en) * | 2004-05-03 | 2004-08-05 | 최재현 | Pipe cleaning device with inlet air and its manufacturing method |
| CN203342630U (en) * | 2013-05-20 | 2013-12-18 | 河南理工大学 | Gas-liquid separation recycling device for liquid-containing vacuum chamber |
| CN103791698A (en) * | 2014-02-27 | 2014-05-14 | 中国石油天然气第六建设公司 | LNG pipeline system vacuum drying method and vacuum drying device |
| DE102013106329A1 (en) * | 2013-06-18 | 2014-12-18 | Gea Energietechnik Gmbh | Method and arrangement for evacuating a pipeline system |
| CN206291634U (en) * | 2016-12-19 | 2017-06-30 | 河南康达制药有限公司 | A kind of bipyramid vacuum drying system |
| CN207907216U (en) * | 2018-02-09 | 2018-09-25 | 阿美科福斯特惠勒动力机械有限公司 | A kind of inner wall of the pipe Minton dryer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8408013B2 (en) * | 2010-06-30 | 2013-04-02 | Instrotek, Inc. | Lightweight portable moisture traps for use with vacuum pumps |
| RU2562873C1 (en) * | 2014-06-27 | 2015-09-10 | Публичное акционерное общество "Газпром" | Drying pipeline inside |
-
2018
- 2018-02-09 CN CN201810133993.8A patent/CN108253404B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2108254A (en) * | 1981-09-29 | 1983-05-11 | Pipeline Service Sa | Method of drying pipelines |
| KR200358098Y1 (en) * | 2004-05-03 | 2004-08-05 | 최재현 | Pipe cleaning device with inlet air and its manufacturing method |
| CN203342630U (en) * | 2013-05-20 | 2013-12-18 | 河南理工大学 | Gas-liquid separation recycling device for liquid-containing vacuum chamber |
| DE102013106329A1 (en) * | 2013-06-18 | 2014-12-18 | Gea Energietechnik Gmbh | Method and arrangement for evacuating a pipeline system |
| CN103791698A (en) * | 2014-02-27 | 2014-05-14 | 中国石油天然气第六建设公司 | LNG pipeline system vacuum drying method and vacuum drying device |
| CN206291634U (en) * | 2016-12-19 | 2017-06-30 | 河南康达制药有限公司 | A kind of bipyramid vacuum drying system |
| CN207907216U (en) * | 2018-02-09 | 2018-09-25 | 阿美科福斯特惠勒动力机械有限公司 | A kind of inner wall of the pipe Minton dryer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108253404A (en) | 2018-07-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 529100 No. 1, Fuhui Road, Xinhui District, Jiangmen City, Guangdong Province Applicant after: Zhuzhong Fuhui Power Machinery Co.,Ltd. Address before: No.1 Fuhui Road, Xinhui District, Jiangmen City, Guangdong Province 529000 Applicant before: AMEC FOSTER WHEELER POWER MACHINERY CO.,LTD. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |