CN112718734B - Dry pig of oil gas pipeline - Google Patents
Dry pig of oil gas pipeline Download PDFInfo
- Publication number
- CN112718734B CN112718734B CN201910971232.4A CN201910971232A CN112718734B CN 112718734 B CN112718734 B CN 112718734B CN 201910971232 A CN201910971232 A CN 201910971232A CN 112718734 B CN112718734 B CN 112718734B
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- China
- Prior art keywords
- pipe
- air inlet
- air
- tube
- cold
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- 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.)
- Expired - Fee Related
Links
- 238000001035 drying Methods 0.000 claims abstract description 32
- 238000000926 separation method Methods 0.000 claims abstract description 18
- 239000010985 leather Substances 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 abstract description 11
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 239000003570 air Substances 0.000 description 78
- 239000007789 gas Substances 0.000 description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 238000000034 method Methods 0.000 description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 230000001105 regulatory effect Effects 0.000 description 7
- 239000002274 desiccant Substances 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 5
- 239000003345 natural gas Substances 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000001291 vacuum drying Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010981 drying operation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000007605 air drying Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- NMJORVOYSJLJGU-UHFFFAOYSA-N methane clathrate Chemical compound C.C.C.C.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O NMJORVOYSJLJGU-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen(.) Chemical compound [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
- B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
- B08B9/0558—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles with additional jet means
-
- 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
-
- 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
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/12—Velocity of flow; Quantity of flow, e.g. by varying fan speed, by modifying cross flow area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2209/00—Details of machines or methods for cleaning hollow articles
- B08B2209/02—Details of apparatuses or methods for cleaning pipes or tubes
- B08B2209/027—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces
- B08B2209/04—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes
- B08B2209/053—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes being moved along the pipes by a fluid, e.g. by fluid pressure or by suction
- B08B2209/055—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes being moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a dry pipe cleaner for an oil and gas pipeline, which comprises a pipe cleaner barrel, a supporting leather cup, a temperature separation assembly, a humidity sensor and an air inlet control valve. The pipe cleaner barrel is of a hollow cylindrical structure, an air inlet channel is arranged in the center of the pipe cleaner barrel, a supporting leather cup is fixed on the side wall of the pipe cleaner barrel, a temperature separation assembly is installed at the outlet end of the air inlet channel, a humidity sensor is installed at the inlet end of the air inlet channel and used for monitoring the humidity value of a pipeline after drying, and an air inlet control valve is installed in the middle of the pipe cleaner barrel and used for adjusting the air inflow. The invention only uses high-pressure dry air as a power source, and skillfully uses high-temperature air generated by an energy separation effect to dry the pipeline. Its advantages are no moving parts, simple structure, less air consumption, high efficiency, less time and cost for cleaning and drying, and wide application foreground.
Description
Technical Field
The invention relates to the field of oil and gas pipelines, in particular to a special pipe cleaner for drying an oil and gas pipeline.
Background
For newly-built pipelines, water is usually adopted as a medium to carry out tightness tests and pressure-bearing experiments. After the experiment test is finished, a pipeline cleaner is needed to sweep the pipeline, and water is discharged out of the pipeline. Often, a portion of the water remains in the pipe due to incomplete cleaning by the pig. During normal production, if the pipeline contains water, an environment for electrochemical corrosion is provided, the pipeline perforation is accelerated, and the reliability and the service life of a pipeline system are influenced. For a high-pressure gas transmission pipeline, when water exists, natural gas hydrate can be generated, so that ice blockage is caused, and the safe operation of the pipeline is influenced.
The drying methods commonly used for oil and gas pipelines include a drying agent method, a vacuum drying method, a flowing gas evaporation method (including a dry air drying method, a nitrogen drying method, a natural gas drying method) and the like.
Methanol, ethylene glycol or triethylene glycol is generally adopted as a drying agent in the drying agent drying method, the drying agent and water can be mutually dissolved in any proportion, and the vapor pressure of the water in the formed solution is greatly reduced, so that the drying purpose is achieved.
The vacuum drying method is a method of removing free water in a tube by reducing the pressure in the tube using a vacuum pump under controlled conditions. The principle is to create a vacuum pressure corresponding to the temperature inside the tube to boil and vaporize the moisture attached to the inner wall of the tube.
The principle of the flowing gas evaporation method is that dry gas is pressed into a pipeline to flow, and the dry gas is contacted with water remained on the inner wall and the lower part of the pipeline to evaporate the water, so that the aim of drying is fulfilled. This gas may be dry air, nitrogen or natural gas.
Compared with the three methods, the drying method of the drying agent consumes a large amount of drying agent, has high cost and tends to be eliminated at present; the vacuum drying method has a small application range and is only suitable for submarine pipelines and large-caliber pipelines; the flowing gas evaporation method has low efficiency and long time, wherein the nitrogen drying method is limited by a gas source, while the natural gas drying method is only suitable for natural gas pipelines.
After the conventional pipe cleaner cleans, residual moisture can be attached to the pipe wall to form a liquid film which is difficult to clean. The problems that the drying effect is improved, the drying cost is reduced, and the drying time is shortened are solved urgently at present. The invention utilizes the vortex tube temperature separation principle, and blows the tube wall through the hot air flow of the vortex tube to accelerate the evaporation of the liquid film on the tube wall, and then the liquid film is carried out of the tube. Compared with the conventional drying method, the method only uses high-pressure dry air as a power source, the high-pressure dry air pushes the method to travel in the pipeline, the rapid drying can be realized, the drying effect can be monitored in real time, the used air quantity is small, the operation efficiency is high, the operation cost is low, and the method has wide application prospect.
Disclosure of Invention
The utility model provides a dry dredging pipe ware of oil gas pipeline, mainly includes the dredging pipe ware barrel, supports leather cup, temperature separation assembly, humidity transducer, advances the air control valve, and the dredging pipe ware barrel is cylindric structure, and its center is equipped with inlet channel, supports the leather cup and fixes on the lateral wall of dredging pipe ware barrel, and the temperature separation assembly is installed on the barrel terminal surface of inlet channel outlet side, and humidity transducer installs on dredging pipe ware barrel entry terminal surface, advances the air control valve and installs at dredging pipe ware barrel middle part.
The temperature separation assembly consists of an air inlet cavity, a gas guide pipe, a vortex tube, a hot air collecting ring pipe and a cold air flow converging chamber, wherein the air inlet cavity is of an oblate cylinder structure, an outlet of an air inlet channel is arranged on the end surface of an inlet of the air inlet cavity, and a plurality of gas guide pipes are uniformly arranged along the outer edge of the end surface of the outlet of the air inlet cavity; the number of the vortex tubes is the same as that of the air-entraining tubes, and each air-entraining tube is communicated with an air inlet of the vortex tube; the hot end pipe of the vortex tube is communicated with the hot air flow collecting ring pipe, a plurality of hot air flow outlets are uniformly arranged on the hot air flow collecting ring pipe along the radial direction, and the cold air flow converging chamber is communicated with the cold end pipe of the vortex tube and used for collecting the cold air flow generated by the vortex tube.
The vortex tube consists of a vortex generator, a hot end tube, a cold end tube and a cold flow rate regulating valve, wherein the vortex generator is provided with a tangential air inlet groove which is used for enabling the gas entering the vortex tube to generate vortex; the hot end pipe is communicated with the hot air flow collecting ring pipe; the cold end pipe is communicated with the cold air flow converging chamber; the cold flow rate regulating valve is arranged at the outlet section of the hot end pipe and is used for regulating the cold flow rate of the vortex pipe so as to change the heating efficiency.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an axial cross-sectional view of the present invention;
FIG. 3 is a schematic radial cross-sectional view of a temperature separation assembly;
FIG. 4 is a schematic view of a vortex tube;
FIG. 5 is a schematic cross-sectional view of a vortex tube;
FIG. 6 is a schematic diagram of a vortex generator;
FIG. 7 is a schematic cross-sectional view of a vortex generator;
fig. 8 is a schematic diagram of the present invention.
In the figure: 1-a tube cleaner cylinder; 2-supporting a leather cup; 3-a temperature separation assembly; 4-a humidity sensor; 5-an air inlet control valve; 6-an air inlet channel; 7-a pipeline; 8-hot gas flow; 9-water vapor in the pipe; 31-an air inlet chamber; 32-a bleed air pipe; 33-a vortex tube; 34-a hot gas flow collecting ring pipe; 35-cold air flow merging chamber; 36-vortex tube gas inlet; 37-hot gas outflow; 38-cold air outflow; 331-a vortex generator; 332-hot end tube; 333-cold end pipe; 334-cold flow rate regulating valve; 335-tangential inlet slots; 336-a vortex chamber; 337-cold air outlet pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a dry pipe cleaner for an oil and gas pipeline includes a pipe cleaner cylinder 1, a supporting cup 2, a temperature separation assembly 3, a humidity sensor 4, and an air inlet control valve 5. The tube cleaner barrel 1 is of a hollow cylindrical structure, and the center of the tube cleaner barrel is provided with an air inlet channel 6; the supporting leather cup 2 is fixed on the side wall of the pipe cleaner barrel 1, the temperature separation assembly 3 is installed at the outlet end of the air inlet channel 6, the humidity sensor 4 is installed on the end face of the pipe cleaner barrel 1 on the inlet side of the air inlet channel 6 and used for monitoring the humidity value of a dried pipeline 7, and the air inlet control valve 5 is installed in the middle of the pipe cleaner barrel 1 and used for adjusting the air inflow entering the temperature separation assembly 3.
Referring to fig. 2-4, temperature separator assembly 3 is comprised of an inlet chamber 31, a bleed air tube 32, a vortex tube 33, a hot gas collection annulus 34, and a cold gas flow joining chamber 35. The air inlet cavity 31 is of an oblate cylinder structure, the outlet of the air inlet channel 6 is arranged on the inlet end face of the air inlet cavity 31, the airflow of the air inlet channel 6 can directly enter the air inlet cavity 31, and the airflow is divided in the air inlet cavity 31 through the air guide pipe 32. The air guide pipes 32 are arranged uniformly along the outer edge of the outlet end face of the air inlet cavity 31. The number of vortex tubes 33 is the same as the number of bleed tubes 32, each bleed tube 32 communicating with a vortex tube air inlet 36. The hot gas collecting ring pipe 34 is communicated with the hot end pipe 332 of the vortex pipe 33, and the hot gas collecting ring pipe 34 is uniformly provided with a plurality of hot gas outlets 37 along the radial direction; the cold air flow merging chamber 35 is communicated with the cold end pipe 333 of the vortex tube 33 through a cold air outlet pipe 337 for collecting the cold air flow generated by the vortex tube 33.
Referring to fig. 4-7, this part is a structural description of the vortex tube 33, and the vortex tube 33 is composed of a vortex generator 331, a hot end tube 332, a cold end tube 333, a cold air outlet tube 337, and a cold flow rate adjusting valve 334. As shown in fig. 6 and 7, the vortex generator 331 is provided with a tangential inlet slot 335 for generating a high-speed vortex of the gas entering the vortex tube 33. Hot end tube 332 communicates with hot gas flow collection annulus 34; the cold end pipe 333 is communicated with the cold air flow converging chamber 35 through a cold air outlet pipe 337; the cold flow rate regulating valve 334 is installed at the outlet section of the hot end pipe 332 and is used for regulating the cold flow rate of the vortex pipe 33, so as to change the temperature of the hot air flow 8.
The working principle is as follows: as shown in figure 8, when the drying device is used, the drying device is placed in the pipeline 7 to be dried through the transceiver system, drying air is introduced into the pipeline 7, and due to the effect of the supporting leather cup 2, pressure difference is generated between the upstream and the downstream of the drying device, so that the drying device is pushed to move forwards along the pipeline 7. At the same time, dry air first enters the air inlet channel 6 in the pig cartridge 1 and subsequently the air inlet chamber 31, where the flow distribution to the individual vortex tubes 33 is completed in the air inlet chamber 31. The gas in the inlet chamber 31 enters the swirl chamber 336 in the vortex tube 33 via the bleed air tube 32. The magnitude of the flow rate of gas into the intake chamber 31 can be changed by adjusting the opening degree of the intake control valve 5. After the high pressure air flow enters the vortex chamber 336, the high pressure potential energy is converted into kinetic energy, and the compressed air generates strong rotational flow in the tangential air inlet groove 335 on the vortex generator 331. The vortex tube 33 is an energy separation device, and the high pressure dry air in the vortex tube 33 has an energy separation effect, i.e. the dry air is separated into two streams of hot and cold (hot gas temperature up to 127 ℃). The hot gas flow 8 exits from the outlet of the hot end tube 332 and the cold gas flow exits from the outlet of the cold end tube 333. The hot air flow 8 from the outlet of the hot end pipe 332 is collected in the hot air collecting ring pipe 34, and the hot air in the hot air collecting ring pipe 34 can uniformly perform thermal purging operation on the inner wall of the pipeline 7 from the hot air flow outlet 37, so that the evaporation of the residual water film on the pipe wall is accelerated, the residual water film is quickly vaporized into water vapor, and the water vapor is easy to discharge out of the pipeline 7. The cold air flow will enter the cold air flow converging chamber 35 from the vortex tube cold end tube 333 through the cold air outlet tube 337, and finally be discharged through the cold air flow outlet 38.
The outlet section of the vortex tube hot end tube 332 of the present invention is provided with a cold flow rate regulating valve 334 which can change the cold flow rate of the vortex tube 33. Research shows that the cooling flow rate is controlled to be about 0.8-0.9, the better the heating effect is, and the stronger the drying effect on the pipeline 7 is. And a humidity sensor 4 is arranged at the tail part of the tube cleaner barrel 1 and can be used for monitoring the drying effect of the pipeline 7.
Compared with the traditional drying technology, the pipeline drying device only uses high-pressure dry air as a power source, can realize pipeline drying by running in the pipeline, has the advantages of small air consumption, high operation efficiency and low operation cost, can realize simultaneous pipeline cleaning operation and pipeline drying, and has large contact area between dry and hot air and the pipeline wall and good blowing effect. The installed humidity sensor can check the drying condition and improve the effectiveness of the pipeline drying operation. In addition, the invention has no moving component inside, has simple structure and skillfully utilizes high-temperature air generated by energy separation effect to dry the pipeline. Compared with the prior art, the pipeline cleaning and drying device has the advantages that the function is stronger, the effect is better, the time and the cost of cleaning and drying operation of the pipeline can be greatly reduced, the pipeline can be put into production as soon as possible, higher economic benefits and social benefits are realized, and the application prospect is wide.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. A dry pipe cleaner for an oil and gas pipeline comprises a pipe cleaner barrel (1), a supporting leather cup (2), a temperature separation assembly (3), a humidity sensor (4) and an air inlet control valve (5), wherein the pipe cleaner barrel (1) is of a cylindrical structure, an air inlet channel (6) is arranged in the center of the pipe cleaner barrel, the supporting leather cup (2) is fixed on the side wall of the pipe cleaner barrel (1), the temperature separation assembly (3) is installed at the outlet end of the air inlet channel (6), the humidity sensor (4) is installed on the end face of the pipe cleaner barrel (1) at the inlet side of the air inlet channel (6), and the air inlet control valve (5) is installed in the middle of the pipe cleaner barrel (1); the temperature separation assembly (3) is composed of an air inlet cavity (31), a gas guide pipe (32), a vortex tube (33), a hot air collecting ring pipe (34) and a cold air flow converging chamber (35), the air inlet cavity (31) is of an oblate cylinder structure, an outlet of an air inlet channel (6) is formed in the inlet end face of the air inlet cavity (31), and the gas guide pipes (32) are uniformly arranged along the outer edge of the outlet end face of the air inlet cavity (31); the number of the vortex tubes (33) is the same as that of the bleed tubes (32), each bleed tube (32) is communicated with a vortex tube air inlet (36), a hot end tube (332) of the vortex tube (33) is communicated with a hot air flow collecting ring tube (34), a plurality of hot air flow outlets (37) are uniformly arranged on the hot air flow collecting ring tube (34) along the radial direction, and a cold air flow converging chamber (35) is communicated with a cold end tube (333) of the vortex tube (33) through a cold air lead-out tube (337).
2. The oil and gas pipeline drying pig of claim 1, wherein: vortex tube (33) constitute by vortex generator (331), hot end pipe (332), cold end pipe (333), cold air outlet pipe (337) and cold flow rate governing valve (334), be equipped with tangential inlet channel (335) on vortex generator (331), hot end pipe (332) are linked together with hot gas flow collection ring pipe (34), cold end pipe (333) join room (35) through cold air outlet pipe (337) and cold air flow and are linked together, cold flow rate governing valve (334) are installed at the export section of hot end pipe (332).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910971232.4A CN112718734B (en) | 2019-10-14 | 2019-10-14 | Dry pig of oil gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910971232.4A CN112718734B (en) | 2019-10-14 | 2019-10-14 | Dry pig of oil gas pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112718734A CN112718734A (en) | 2021-04-30 |
| CN112718734B true CN112718734B (en) | 2022-04-15 |
Family
ID=75588329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910971232.4A Expired - Fee Related CN112718734B (en) | 2019-10-14 | 2019-10-14 | Dry pig of oil gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112718734B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3418710A1 (en) * | 1984-05-19 | 1985-11-21 | Oskar Vollmar GmbH, 7000 Stuttgart | Jet cleaner |
| RU2091684C1 (en) * | 1992-10-23 | 1997-09-27 | Конструкторское Бюро Общего Машиностроения | Drying chamber |
| RU2391610C1 (en) * | 2009-03-16 | 2010-06-10 | Дмитрий Евгеньевич Каширин | Beebread drying plant |
| CN204300700U (en) * | 2014-12-05 | 2015-04-29 | 高拓石油天然气技术（上海）有限责任公司 | With the control pressurer system of vortex heater |
| CN104858187A (en) * | 2015-04-27 | 2015-08-26 | 中国石油大学(华东) | Depositional sulfur remover for high-sulfur-content gathering and transportation pipeline |
| CN104959353A (en) * | 2015-07-07 | 2015-10-07 | 山东泰邦生物制品有限公司 | Water-saving cooling type online washing method |
| CN105107801A (en) * | 2015-07-30 | 2015-12-02 | 河南中拓石油工程技术股份有限公司 | Water-sweeping, drying and inerting integrated process for natural gas transportation pipeline |
| CN206459435U (en) * | 2017-01-18 | 2017-09-01 | 焦作龙星化工有限责任公司 | A kind of efficient device for drying carbon black |
| CN109269285A (en) * | 2018-11-09 | 2019-01-25 | 珠海格力电器股份有限公司 | Drying device and dryer |
| CN110026398A (en) * | 2019-04-23 | 2019-07-19 | 徐结华 | A kind of environment-friendly and energy-efficient bottle washing machine |
-
2019
- 2019-10-14 CN CN201910971232.4A patent/CN112718734B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3418710A1 (en) * | 1984-05-19 | 1985-11-21 | Oskar Vollmar GmbH, 7000 Stuttgart | Jet cleaner |
| RU2091684C1 (en) * | 1992-10-23 | 1997-09-27 | Конструкторское Бюро Общего Машиностроения | Drying chamber |
| RU2391610C1 (en) * | 2009-03-16 | 2010-06-10 | Дмитрий Евгеньевич Каширин | Beebread drying plant |
| CN204300700U (en) * | 2014-12-05 | 2015-04-29 | 高拓石油天然气技术（上海）有限责任公司 | With the control pressurer system of vortex heater |
| CN104858187A (en) * | 2015-04-27 | 2015-08-26 | 中国石油大学(华东) | Depositional sulfur remover for high-sulfur-content gathering and transportation pipeline |
| CN104959353A (en) * | 2015-07-07 | 2015-10-07 | 山东泰邦生物制品有限公司 | Water-saving cooling type online washing method |
| CN105107801A (en) * | 2015-07-30 | 2015-12-02 | 河南中拓石油工程技术股份有限公司 | Water-sweeping, drying and inerting integrated process for natural gas transportation pipeline |
| CN206459435U (en) * | 2017-01-18 | 2017-09-01 | 焦作龙星化工有限责任公司 | A kind of efficient device for drying carbon black |
| CN109269285A (en) * | 2018-11-09 | 2019-01-25 | 珠海格力电器股份有限公司 | Drying device and dryer |
| CN110026398A (en) * | 2019-04-23 | 2019-07-19 | 徐结华 | A kind of environment-friendly and energy-efficient bottle washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112718734A (en) | 2021-04-30 |
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