CN110762394B - Fuel pipeline blockage removing device and method - Google Patents
Fuel pipeline blockage removing device and method Download PDFInfo
- Publication number
- CN110762394B CN110762394B CN201810841852.1A CN201810841852A CN110762394B CN 110762394 B CN110762394 B CN 110762394B CN 201810841852 A CN201810841852 A CN 201810841852A CN 110762394 B CN110762394 B CN 110762394B
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- valve
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- 239000000446 fuel Substances 0.000 title claims abstract description 75
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000010779 crude oil Substances 0.000 claims abstract description 41
- 238000003860 storage Methods 0.000 claims abstract description 41
- 239000000295 fuel oil Substances 0.000 claims abstract description 38
- 238000010438 heat treatment Methods 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000007664 blowing Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 abstract description 6
- 239000003921 oil Substances 0.000 abstract description 3
- 238000007711 solidification Methods 0.000 abstract description 3
- 230000008023 solidification Effects 0.000 abstract description 3
- 238000004891 communication Methods 0.000 description 7
- 238000005235 decoking Methods 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/12—Conveying liquids or viscous products by pressure of another fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/16—Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity
- F17D1/18—Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity by heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention discloses a fuel pipeline blockage removing device and method, and belongs to the technical field of oil pipe cleaning. This fuel pipeline unblocks device includes: the device comprises an air compressor, a first air storage tank, a first valve, a second valve, a steam generator and a heating sleeve; the air compressor is communicated with the first air storage tank, the first valve and the second valve in sequence through pipelines; a first pressure gauge is connected between the first valve and the second valve; the second valve is communicated with a third valve through a pipeline, and the other end of the third valve is communicated with a fuel supply device; the heating sleeve is sleeved on a fuel oil pipeline communicated with the second valve and the third valve, and the steam generator is communicated with the heating sleeve through a pipeline. The residual crude oil in the fuel oil pipeline is heated, the temperature of the crude oil in the fuel oil pipeline is raised, and then the heated crude oil is cleaned, so that the residual crude oil in the fuel oil pipeline is completely blown out of the pipeline, and the pipeline blockage caused by the solidification of part of the crude oil due to the temperature reduction is avoided.
Description
Technical Field
The invention belongs to the technical field of oil pipe cleaning, and relates to a fuel oil pipeline blockage removing device and method.
Background
The oil field heating furnace is a device for heating a medium by using crude oil as a fuel, the heating furnace needs to be stopped for decoking every time when running for a period of time, and after the heating furnace is stopped, the crude oil in a fuel pipeline of the heating furnace is solidified in the period of time due to the fact that the temperature in the fuel pipeline of the heating furnace is reduced, so that the fuel pipeline is blocked, and the heating furnace is difficult to restart. Therefore, it is necessary to provide a fuel pipeline blockage relieving device and a method thereof.
Disclosure of Invention
The embodiment of the invention provides a fuel pipeline blockage removing device and method, which can solve the technical problem. The specific technical scheme is as follows:
in one aspect, a fuel pipeline blockage removing device is provided, the device includes: the device comprises an air compressor, a first air storage tank, a first valve, a second valve, a steam generator and a heating sleeve;
the air compressor is communicated with the first air storage tank, the first valve and the second valve in sequence through pipelines;
a first pressure gauge is connected between the first valve and the second valve;
the second valve is communicated with a third valve through a pipeline, and the other end of the third valve is communicated with a fuel supply device;
the heating sleeve is sleeved on the fuel oil pipeline communicated with the second valve and the third valve, and the steam generator is communicated with the heating sleeve through a pipeline.
Optionally, the apparatus further comprises: the second air storage tank is used for storing air when the first air storage tank fails;
an inflating nozzle is arranged on the second air storage tank;
the second gas storage tank is communicated with the first valve through a pipeline, and a fourth valve is arranged between the second gas storage tank and the first valve.
Optionally, a fifth valve and a sixth valve are arranged between the steam generator and the heating sleeve;
and the top of the steam generator is provided with a seventh valve for injecting water into the steam generator and an eighth valve communicated with the fifth valve through a pipeline.
Optionally, a second pressure gauge is arranged on the steam generator.
Optionally, the device further comprises a first elbow in communication with the first valve, a second elbow in communication with the second valve, and a third elbow in communication with the third valve.
Optionally, the first valve, the second valve and the third valve are the same size.
Optionally, a check valve for preventing fuel from entering the pipeline is arranged between the second valve and the fuel pipeline.
Optionally, the air compressor, the first air storage tank, the first valve, the second valve and the third valve are detachably communicated with each other through a pipeline.
Optionally, the second valve is in a closed state when the first valve is open.
In another aspect, the present invention further provides a fuel pipeline blockage removing method, which is used for the fuel pipeline blockage removing device described in any one of the above, and the method includes:
step a, closing a third valve, prohibiting crude oil from entering a fuel oil pipeline, opening an air compressor, filling compressed air into a first air storage tank, opening a first valve to enable the reading of a first pressure gauge to reach a first set value, and opening a steam generator to enable water steam to enter a heating sleeve to heat the fuel oil pipeline;
and b, when the reading of the first pressure gauge reaches a first set value, opening a second valve to enable air to enter the fuel oil pipeline, blowing out the residual crude oil, and then closing the first valve.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
according to the blockage removing device for the fuel oil pipeline, the residual crude oil in the fuel oil pipeline is heated through the device, the temperature of the crude oil in the fuel oil pipeline is raised, and then the heated crude oil is cleaned, so that the residual crude oil in the fuel oil pipeline is completely blown out of the pipeline, and the phenomenon that the pipeline is blocked due to solidification of part of the crude oil due to temperature reduction is avoided. The working efficiency is improved, and the labor intensity of workers is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a flow chart of a fuel pipeline blockage relieving method provided by the embodiment of the invention.
The reference numerals denote:
1-a compressor of air, the compressor being,
2-a first gas storage tank for storing gas,
3-a first valve, wherein the first valve is connected with the first valve,
4-a second valve, wherein the second valve is connected with the first valve,
5-a pressure gauge, wherein the pressure gauge is arranged on the upper portion of the shell,
6-a third valve, wherein the third valve is connected with the first valve,
7-a second gas storage tank,
8-an air charging nozzle is arranged at the lower part of the air charging pipe,
9-a fourth valve, wherein the fourth valve is connected with the first valve,
10-a one-way valve, wherein,
11-a steam generator, which is arranged in the steam generator,
12-heating the sleeve, wherein the sleeve is heated,
13-a seventh valve, which is arranged in the first valve,
14-a fifth valve, which is provided with a valve,
15-a sixth valve, wherein the first valve is connected with the second valve,
16-an eighth valve, which is provided with a valve,
17-second pressure gauge.
Detailed Description
Unless defined otherwise, all technical terms used in the examples of the present invention have the same meaning as commonly understood by one of ordinary skill in the art. In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In one aspect, an embodiment of the present invention provides a fuel pipeline blockage relieving device, as shown in fig. 1, the device includes: the air compressor 1, the first air storage tank 2, the first valve 3, the second valve 4, the steam generator 11 and the heating sleeve 12.
The air compressor 1, the first air storage tank 2, the first valve 3 and the second valve 4 are sequentially communicated through pipelines. The heating sleeve 12 is sleeved on the fuel oil pipeline, and the steam generator 11 is communicated with the heating sleeve 12 through a pipeline.
A first pressure gauge 5 is connected between the first valve 3 and the second valve 4.
The second valve 4 is communicated with a third valve 6 through a pipeline, and the other end of the third valve 6 is communicated with a fuel supply device.
According to the fuel pipeline blockage removing device provided by the invention, as shown in the attached drawing 1, during operation, the third valve 6 is closed, so that crude oil does not enter the fuel pipeline any more. The air compressor 1 is started, compressed air is filled into the first air storage tank 2, the first valve 3 is opened, the reading of the pressure gauge 5 reaches a first set value, the steam generator 11 is started, water steam enters the heating sleeve 12 to heat the fuel oil pipeline, when the reading of the pressure gauge 5 reaches the first set value, the second valve 4 is opened, air enters the fuel oil pipeline, and the heated residual crude oil is blown out and then the first valve 3 is closed. The residual crude oil in the fuel oil pipeline is heated by the device, the temperature of the crude oil in the fuel oil pipeline is raised, and then the heated crude oil is cleaned, so that the residual crude oil in the fuel oil pipeline is completely blown out of the pipeline, and the pipeline blockage caused by the solidification of partial crude oil due to the temperature reduction is avoided. The working efficiency is improved, and the labor intensity of workers is reduced.
It can be understood that the third valve 6 in the fuel line blockage removing device provided by the embodiment of the invention is used for controlling the crude oil entering in the fuel line. Thus, as an example, the second valve 4 may be in communication with the third valve 6 via a pipeline and then in communication with the fuel supply, or the second valve 4 may be in direct communication with the fuel supply, and the third valve 6 may control whether the fuel supply supplies crude oil to the fuel line.
The first pressure gauge 5 is connected with the second valve 4 through a pressure gauge joint. It is understood that the pressure taps may be flared taps, elbow taps, straight taps, pressure tap straight taps, etc.
Optionally, as shown in fig. 1, the apparatus further includes: and a second air tank 7 for storing air by using the second air tank 7 when the first air tank 2 is out of order.
The second air storage tank 7 is provided with an inflating nozzle 8 for inflating the second air storage tank 7.
The second air storage tank 7 is communicated with the first valve 3, and a fourth valve 9 is arranged between the second air storage tank 7 and the first valve 3.
The second air storage tank 7 is arranged, and when the first air storage tank 2 breaks down and needs to be overhauled, the second air storage tank 7 can be used for cleaning a fuel pipeline.
As an example, when the first air storage tank 2 is in failure, the first valve 3 is closed, the second valve 4 is closed, the fourth valve 9 is opened, the second air storage tank 7 is manually inflated by the inflating nozzle 8, the first pressure gauge 5 is observed, and the valve 9 is closed to stop the inflation when the first set value is reached. The second air storage tank 7 is only used as a spare in normal operation, and the second air storage tank 7 can be used for purging when the air compressor 1 or the first air storage tank 2 fails. Cleaning the fuel oil pipeline.
The volume of the second reservoir 7 is greater than 0.25m in order to provide sufficient pressure to the fuel line to purge it3Exemplary, may be 0.3m3、0.5m3、0.9m3、1m3、1.3m3、3m3And the like.
The second air tank 7 may be made of rubber or stainless steel.
The length of the pipeline can be determined according to the specific situation of field operation, and the length of the pipeline can be 1-20 m. For example, 1m, 3m, 5m, 7m, 8m, 15m, 20m, etc. The size of the pipeline can be selected according to the field condition, and the model can be G1/2 inch steel pipe.
Optionally, a fifth valve 14 and a sixth valve 15 are disposed between the steam generator 11 and the heating sleeve 12;
the top of the steam generator 11 is provided with a seventh valve 13 for filling water into the steam generator 11 through a pipeline, and an eighth valve 16 communicating with the fifth valve 14.
A fifth valve 14 and a sixth valve 15 are arranged between the steam generator 11 and the heating sleeve 12, and are used for controlling the steam generator 11 to inject water vapor into the heating sleeve 12 to heat the fuel pipeline. The top of the steam generator 11 is provided with a seventh valve 13 for injecting water into the steam generator 11 through a pipeline, and the seventh valve is used for injecting water into the steam generator 11, so that the water in the steam generator 11 is electrically heated by the steam generator 11, and the generated water is used for heating the fuel pipeline. An eighth valve 16 is provided at a position where the steam generator 11 communicates with the fifth valve 14, and when the pressure in the steam generator 11 is too high, the steam in the steam generator 11 is discharged through the eighth valve 16.
The heating jacket 12 has a diameter greater than the diameter of the fuel line 11, and may, for example, be twice the diameter of the fuel line 11 to allow water vapor to pass therethrough.
Optionally, a second pressure gauge 17 is provided on the steam generator 11. For detecting the pressure inside the steam generator 11. The pressure of the water vapor in the steam generator 11 may be 0.2-0.5 Mpa. For example, 0.2MPa, 0.3MPa, 0.4MPa, 0.5MPa, etc.
Optionally, the device provided by the embodiment of the present invention further includes a first elbow communicated with the first valve 3, a second elbow communicated with the second valve 4, and a third elbow communicated with the third valve 6.
Alternatively, the first valve 3, the second valve 4 and the third valve 6 are the same size.
In order to communicate with the first valve 3, the second valve 4 and the third valve 6, elbows are provided at the connection of the lines and the valves. The angle of the elbow is determined according to the field situation, and can be 45 degrees, 90 degrees or 180 degrees of elbow. The size of the first elbow communicating with the first valve 3 should be adapted to the size of the first valve 3, as an example, the first valve 3 may be a ball valve with a nominal diameter of 15mm, and the first elbow should be selected to have a nominal diameter of 15mm to be adapted to communicate with the first valve 3. For example, the second valve 4 should be sized to accommodate the size of the second elbow with which it communicates, and the third valve 6 should be sized to accommodate the size of the third elbow with which it communicates.
It will be appreciated that the number of bends is related to the number of valves.
Optionally, a check valve 10 is provided between the second valve 4 and the fuel line to prevent fuel from entering the line.
During operation, the third valve 6 and the second valve 4 on the fuel supply device are closed, the air compressor 1 is opened to pump air into the first air storage tank 2, the first valve 3 is opened, the second valve 4 is opened when the reading of the first pressure gauge 5 reaches a first set value, compressed air enters the fuel pipeline from the pipeline, and residual crude oil in the fuel pipeline is cleaned.
In order to have sufficient pressure to allow the compressed air from the first reservoir 2 to sweep the remaining crude oil in the fuel line out of the fuel line when the second valve 4 is opened, the reading of the first pressure gauge 5, i.e. the first set point, may be 1-1.5 MPa. Examples thereof include 1MPa, 1.1MPa, 1.2MPa, 1.3MPa, 1.4MPa, and 1.5 MPa.
As an example, the first pressure gauge 5 can be a common spring tube type first pressure gauge 5 with the measuring range of 0-1.6 MPa and the dial diameter of 100 mm.
Optionally, the air compressor 1, the first air storage tank 2, the first valve 3, the second valve 4 and the third valve 6 are detachably communicated through pipelines.
In order to facilitate the overhaul, replacement and maintenance of the components, the components are detachably connected, that is, the air compressor 1, the first air storage tank 2, the first valve 3, the second valve 4 and the third valve 6 are detachably connected through pipelines, and the first pressure gauge 5 is detachably connected with the pipelines between the first valve 3 and the second valve 4 through pressure gauge connectors.
As an example, the detachable connection may be a threaded connection.
Alternatively, the second valve 4 is in a closed state when the first valve 3 is open.
It will be appreciated that the opening of the first valve 3 allows compressed air to be introduced into the line and hence into the fuel line, and therefore the first valve 3 may be an air-bleed valve. After the second valve 4 is opened, the compressed air enters the fuel pipeline to clean the residual crude oil in the fuel pipeline, so the second valve 4 can be a scavenging line valve. One end of the third valve 6 is communicated with the fuel device, the other end of the third valve is communicated with the second valve 4, after the third valve 6 is closed, the communication between the fuel device and the fuel pipeline is closed, the fuel supply device does not supply crude oil to the fuel pipeline, and therefore the third valve 6 can be a fuel valve for controlling fuel to enter the fuel pipeline.
On the other hand, the invention also provides a fuel pipeline blockage removing method which is used for the fuel pipeline blockage removing device. The fuel pipeline blockage removing method provided by the embodiment of the invention comprises the following steps:
step 1, closing the third valve 6, prohibiting crude oil from entering a fuel oil pipeline, opening the air compressor 1, filling compressed air into the first air storage tank 2, opening the first valve 3 to enable the reading of the pressure gauge 5 to reach a first set value, and opening the steam generator 11 to enable water vapor to enter the heating sleeve 12 to heat the fuel oil pipeline.
And 2, when the reading of the pressure gauge 5 reaches a first set value, opening the second valve 4 to enable air to enter the fuel oil pipeline, blowing out the residual crude oil, and then closing the first valve 3.
It can be understood that one end of the fuel oil pipeline is communicated with the fuel oil supply device, crude oil is supplied to the fuel oil supply device by the fuel oil supply device, the other end of the fuel oil pipeline is a residual crude oil outlet, the heating sleeve 12 is sleeved on the fuel oil pipeline of the crude oil outlet to heat the crude oil in the fuel oil pipeline, cleaning is carried out, and the residual crude oil is blown out of the outlet of the fuel oil pipeline.
It will be appreciated that the time for compressed air to enter the fuel line to purge in order to completely blow out the remaining crude oil in the fuel line may be in the range of 60s to 100 s. For example, it may be 60s, 70s, 80s, 90s, 100s, etc.
Cleaning is carried out after the fuel oil pipeline is heated through the steps, and then blowing-out and decoking operations are carried out on the heating furnace, when the heating furnace is restarted after decoking is completed, because the crude oil in the fuel oil pipeline is cleaned completely, the phenomenon that the crude oil in the fuel oil pipeline is solidified to block the pipeline can not occur, the manual high-temperature hot water preheating operation of the solidified crude oil in the pipeline is avoided, and the operation efficiency is improved.
The above description is only an illustrative embodiment of the present invention, and should not be taken as limiting the scope of the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a stifled device is separated to fuel pipeline which characterized in that, fuel pipeline removes stifled device includes: the device comprises an air compressor (1), a first air storage tank (2), a first valve (3), a second valve (4), a steam generator (11) and a heating sleeve (12);
the air compressor (1) is communicated with the first air storage tank (2), the first valve (3) and the second valve (4) in sequence through pipelines;
a first pressure gauge (5) is connected between the first valve (3) and the second valve (4);
the second valve (4) is communicated with a third valve (6) through a pipeline, and the other end of the third valve (6) is communicated with a fuel supply device;
the heating sleeve (12) is sleeved on a fuel oil pipeline communicated with the second valve (4) and the third valve (6), and the steam generator (11) is communicated with the heating sleeve (12) through a pipeline;
the steam generator (11) is used for providing water vapor to the heating sleeve (12) to enable the heating sleeve (12) to heat the fuel pipeline by adopting the water vapor, the air compressor (1) is used for providing compressed air to the first air storage tank (2), the compressed air in the first air storage tank (2) is used for blowing crude oil heated by the heating sleeve (12) in the fuel pipeline out of the fuel pipeline, and the first pressure gauge (5) is used for measuring the pressure of a pipeline between the first valve (3) and the second valve (4).
2. The fuel line unblocking apparatus of claim 1, further comprising: a second air tank (7) for storing air by using the second air tank (7) when the first air tank (2) is failed;
an inflating nozzle (8) is arranged on the second air storage tank (7);
the second air storage tank (7) is communicated with the first valve (3) through a pipeline, and a fourth valve (9) is arranged between the second air storage tank (7) and the first valve (3).
3. The fuel pipeline unblocking apparatus according to claim 1, wherein a fifth valve (14) and a sixth valve (15) are disposed between the steam generator (11) and the heating jacket (12);
the top of the steam generator (11) is provided with a seventh valve (13) for filling water into the steam generator (11) and an eighth valve (16) communicated with the fifth valve (14) through pipelines.
4. The fuel pipeline unblocking apparatus according to claim 1, wherein a second pressure gauge (17) is provided on the steam generator (11).
5. The fuel line unblocking apparatus according to claim 1, further comprising a first elbow communicating with the first valve (3), a second elbow communicating with the second valve (4), and a third elbow communicating with the third valve (6).
6. Fuel line unblocking device according to claim 5, characterized in that said first valve (3), said second valve (4) and said third valve (6) are of the same size.
7. Fuel line unblocking device according to claim 1, characterized in that a check valve (10) for preventing fuel from entering the line is arranged between the second valve (4) and the fuel line.
8. The fuel pipeline blockage relieving device of claim 1, wherein the air compressor (1), the first air storage tank (2), the first valve (3), the second valve (4) and the third valve (6) are detachably communicated through pipelines.
9. The fuel line unblocking apparatus according to claim 1, wherein the second valve (4) is in a closed state when the first valve (3) is opened.
10. A fuel line unblocking method for a fuel line unblocking apparatus according to any one of claims 1-9, the method comprising:
step a, closing a third valve (6), prohibiting crude oil from entering a fuel oil pipeline, opening an air compressor (1), filling compressed air into a first air storage tank (2), opening a first valve (3) to enable the reading of a first pressure gauge (5) to reach a first set value, and opening a steam generator (11) to enable water vapor to enter a heating sleeve (12) to heat the fuel oil pipeline;
and b, when the reading of the first pressure gauge (5) reaches a first set value, opening a second valve (4) to enable air to enter the fuel oil pipeline, blowing out residual crude oil, and then closing the first valve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810841852.1A CN110762394B (en) | 2018-07-27 | 2018-07-27 | Fuel pipeline blockage removing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810841852.1A CN110762394B (en) | 2018-07-27 | 2018-07-27 | Fuel pipeline blockage removing device and method |
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| Publication Number | Publication Date |
|---|---|
| CN110762394A CN110762394A (en) | 2020-02-07 |
| CN110762394B true CN110762394B (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810841852.1A Active CN110762394B (en) | 2018-07-27 | 2018-07-27 | Fuel pipeline blockage removing device and method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116658121B (en) * | 2023-07-31 | 2023-10-10 | 大庆世明达机械制造有限公司 | Oil pipe heating blocking removing device special for oil field |
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|---|---|---|---|---|
| US2876145A (en) * | 1957-03-25 | 1959-03-03 | Texas Co | Removal of deposits such as paraffin from oil lines by use of soluble candy plug |
| CN200952624Y (en) * | 2006-09-06 | 2007-09-26 | 大庆油田有限责任公司 | Oil field pipe line heating deplugging machine |
| CN202263754U (en) * | 2011-10-06 | 2012-06-06 | 王恩学 | Oil field pipe de-blocking device |
| CN202532182U (en) * | 2012-03-22 | 2012-11-14 | 中国石油天然气股份有限公司 | Moving-iron type electric heating deblocking device for oil well pipeline |
| CN203610385U (en) * | 2013-10-16 | 2014-05-28 | 江苏中烟工业有限责任公司徐州卷烟厂 | Automatic ice blockage removal device |
| CN207086491U (en) * | 2017-08-07 | 2018-03-13 | 浙江亘元润滑技术有限公司 | Heat-conducting oil system cleaning equipment with self-priming choke preventing function |
-
2018
- 2018-07-27 CN CN201810841852.1A patent/CN110762394B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2876145A (en) * | 1957-03-25 | 1959-03-03 | Texas Co | Removal of deposits such as paraffin from oil lines by use of soluble candy plug |
| CN200952624Y (en) * | 2006-09-06 | 2007-09-26 | 大庆油田有限责任公司 | Oil field pipe line heating deplugging machine |
| CN202263754U (en) * | 2011-10-06 | 2012-06-06 | 王恩学 | Oil field pipe de-blocking device |
| CN202532182U (en) * | 2012-03-22 | 2012-11-14 | 中国石油天然气股份有限公司 | Moving-iron type electric heating deblocking device for oil well pipeline |
| CN203610385U (en) * | 2013-10-16 | 2014-05-28 | 江苏中烟工业有限责任公司徐州卷烟厂 | Automatic ice blockage removal device |
| CN207086491U (en) * | 2017-08-07 | 2018-03-13 | 浙江亘元润滑技术有限公司 | Heat-conducting oil system cleaning equipment with self-priming choke preventing function |
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| Publication number | Publication date |
|---|---|
| CN110762394A (en) | 2020-02-07 |
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