CN213134334U - Liquefied natural gas pipeline cleaning device - Google Patents
Liquefied natural gas pipeline cleaning device Download PDFInfo
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- CN213134334U CN213134334U CN202021716007.0U CN202021716007U CN213134334U CN 213134334 U CN213134334 U CN 213134334U CN 202021716007 U CN202021716007 U CN 202021716007U CN 213134334 U CN213134334 U CN 213134334U
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Abstract
The utility model discloses a liquefied natural gas pipeline cleaning device, which comprises a booster, a water pump, a main pipe and an auxiliary pipe which is obliquely communicated with the side of the main pipe, wherein the auxiliary pipe is connected with the outlet of the water pump through a first check valve, one end of the main pipe is connected with the outlet of the booster through a second check valve, the other end of the main pipe is provided with an outlet flange which is separately connected with a cleaning port flange, a sleeve is inserted and fixed in the port of the main pipe on one side of the outlet flange, and a spiral baffle plate which is fixed with the inner wall of the sleeve is arranged in the sleeve; a sealing cover is slidably sleeved on the main pipe between the outlet flange and the auxiliary pipe, and a through hole corresponding to the outlet flange screw hole is formed in the sealing cover; one side that the closing cap was kept away from to export flange side is equipped with half recess down along circumference, and closing cap lateral wall matches the recess and is equipped with half recess along closing cap lateral wall circumference, and the flange seal circle, advantage have been put in the activity between half recess and half recess last: the spiral baffle plate enables water to rotate, and the washing and purifying effects of the pipe wall are improved by matching with high-pressure washing of the pipe wall.
Description
The technical field is as follows:
the utility model relates to a coal gasification equipment technical field, concretely relates to liquefied natural gas pipeline cleaning device.
Background art:
at present, in the production process of liquefied natural gas, one problem often occurs is that the inner pipeline of the chilling ring of the gasification furnace circulates chilling water for a long time, and the inside of the chilling ring pipeline is scaled and cannot be cleaned, so that the water replenishing of the chilling ring is not smooth, and the service cycle of the chilling ring and a downcomer is influenced; another problem is that the carbon washing tower black discharge pipeline is difficult to clean due to long length of the slag water high flash pipeline after the angle valve, and the carbon washing tower black discharge is blocked due to the fact that the inside of the pipeline cannot be cleaned, the pipeline is blocked by thermal expansion and cold contraction and the high flash angle valve is fed when the system is in cold state driving or the system is in hot state combined operation, and system pressure rise and subsequent gas mixing operation are influenced. The existing quenching ring pipeline and carbon washing tower black discharge pipeline are additionally provided with a three-way cleaning port, so that when a furnace is conveniently prepared for maintenance, water is fed from the three-way cleaning port to clean the interior of the pipeline, but scaling and blockage are usually serious, common water delivery is not thoroughly cleaned, and the use of the pipeline is influenced.
The utility model has the following contents:
an object of the utility model is to provide a liquefied natural gas pipeline cleaning device.
The utility model discloses by following technical scheme implement:
a liquefied natural gas pipeline cleaning device comprises a supercharger, a water pump, a main pipe and an auxiliary pipe obliquely communicated with the side of the main pipe, wherein the auxiliary pipe is connected with an outlet of the water pump through a first one-way valve, one end of the main pipe is connected with an outlet of the supercharger through a second one-way valve, an outlet flange which is connected with a cleaning opening flange in a split mode is arranged at the other end of the main pipe, a sleeve is inserted and fixed into a port of the main pipe on one side of the outlet flange, and a spiral baffle plate fixed with the inner wall of the sleeve is arranged in the sleeve;
a sealing cover is slidably sleeved on the main pipe between the outlet flange and the auxiliary pipe, and a through hole corresponding to the outlet flange screw hole is formed in the sealing cover;
one side of the side edge of the outlet flange, which is far away from the sealing cover, is provided with a lower half groove along the circumferential direction, the side wall of the sealing cover is matched with the groove, an upper half groove is arranged along the circumferential direction of the side wall of the sealing cover, and a flange sealing ring is movably arranged between the upper half groove and the lower half groove.
Preferably, the angle between the secondary pipe and the main pipe is 60-30 degrees, and the secondary pipe is inclined towards the supercharger side.
Preferably, a counter bore is arranged on the sealing cover at one end of the through hole facing the outlet flange, and a bolt sealing ring is arranged in the counter bore.
Preferably, the flange sealing ring and the bolt sealing ring are made of rubber materials.
The utility model has the advantages that: the booster is arranged to give the pressure of the flushing water in the main pipe, so that the impulsive force of the water is enhanced, water scale and blockage are effectively dredged and removed, the flushing water in the main pipe is flushed into a pipeline to be flushed through the sleeve, the water is made to form a rotating state through the spiral baffle plate, and the flushing and purifying effects of the inner wall of the pipeline are improved by matching with the flushing of the inner wall of the pipeline by high-pressure water; in addition, the flange sealing ring is extruded by the sealing cover, the cleaning port flange and the outlet flange, and the flange sealing ring can seal the side edges of the cleaning port flange and the outlet flange to prevent water from seeping outwards due to the increase of water pressure.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged partial schematic view of A of FIG. 1;
FIG. 3 is a schematic view of FIG. 1 in connection with a purge port;
fig. 4 is a partially enlarged schematic view of B in fig. 3.
In the figure: the device comprises a supercharger 1, a water pump 2, a main pipe 3, an auxiliary pipe 4, a first one-way valve 5, a second one-way valve 6, an outlet flange 7, a sleeve 8, a spiral baffle plate 9, a sealing cover 10, a through hole 11, a lower half groove 12, an upper half groove 13, a flange sealing ring 14, a counter bore 15, a bolt sealing ring 16, a cleaning opening 17 and a cleaning opening flange 18.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 to 4, a liquefied natural gas pipeline cleaning device comprises a booster 1, a water pump 2, a main pipe 3 and a secondary pipe 4 obliquely communicated with and arranged at the side of the main pipe 3, wherein an included angle between the secondary pipe 4 and the main pipe 3 is 60-30 degrees, preferably 45 degrees, which is beneficial for flushing water to be matched with pressurized gas to flush out from the main pipe 3, the secondary pipe 4 inclines towards one side of the booster 1, the secondary pipe 4 is connected with an outlet of the water pump 2 through a first one-way valve 5, an inlet of the water pump 2 is connected with a water source, flushing water enters the main pipe 3 through the water pump 2 through the first one-way valve 5, the first one-way valve 5 prevents the backflow of flushing water, one end of the booster 3 is connected with an outlet of the booster 1 through a second one-way valve 6, the booster 1 supplies flushing water pressure in the main pipe 3, enhances the flushing water impulsive force, effectively dredges and removes scales and blockages, the other end of the main pipe 3 is provided with an outlet flange 7 which is separately connected with a cleaning port flange 18, when the washing machine is not used, the end cover is connected with the cleaning opening flange 18 through bolts to seal the cleaning opening 17, when in use, the outlet flange 7 is connected with the cleaning opening flange 18 through bolts to connect the main pipe 3 with the cleaning opening 17, a sleeve 8 is inserted and fixed in the port of the main pipe 3 at one side of the outlet flange 7, a spiral baffle plate 9 fixed with the inner wall of the sleeve 8 is arranged in the sleeve 8, part of the sleeve 8 is arranged in a cleaning opening 17, the flushing water in the main pipe 3 is flushed into a pipeline needing to be flushed through the sleeve 8, the spiral baffle plate 9 enables the water to form a rotating state, and the inner wall of the pipeline is flushed by high-pressure water, so that the flushing and purifying effects of the inner wall of the pipeline are improved, because the retention time of the water flow in the spiral state is limited, the number of cleaning ports 17 of a pipeline to be cleaned can be increased properly, or the device is applied to a pipeline section with more serious scale formation and blockage;
a sealing cover 10 is slidably sleeved on the main pipe 3 between the outlet flange 7 and the auxiliary pipe 4, a through hole 11 corresponding to a screw hole of the outlet flange 7 is formed in the sealing cover 10, the sealing cover 10 is slidably covered on the outlet flange 7 to cover the cleaning port flange 18 and the outlet flange 7, and bolts for connecting the cleaning port flange 18 and the outlet flange 7 can connect and fasten the sealing cover 10 on the outlet flange 7 by penetrating the through hole 11;
one side of the side edge of the outlet flange 7, which is far away from the sealing cover 10, is circumferentially provided with a lower half groove 12, the side wall of the sealing cover 10 is matched with the groove and is circumferentially provided with an upper half groove 13 along the side wall of the sealing cover 10, a flange sealing ring 14 is movably arranged between the upper half groove 13 and the lower half groove 12, the flange sealing ring 14 is extruded by the sealing cover 10, the cleaning port flange 18 and the outlet flange 7, and the flange sealing ring 14 can seal the side edge of the cleaning port flange 18 and the side edge of the outlet flange 7 to prevent water pressure from increasing and.
A counter bore 15 is formed in the sealing cover 10 at one end, facing the outlet flange 7, of the through hole 11, a bolt sealing ring 16 is arranged in the counter bore 15, when a bolt penetrates through the through hole 11 in the sealing cover 10 and is connected with the outlet flange 7, the bolt sealing ring 16 also penetrates through the bolt sealing ring 16, the bolt sealing ring 16 is extruded by the outlet flange 7, the sealing cover 10 and the bolt, and the space between the bolt and the through hole 11 and between the bolt and a screw hole of the outlet flange 7 are sealed, so that water is prevented from entering, the corrosion of the bolt in the through hole 11 is prevented, the firmness of the sealing cover 10 and the outlet flange 7 is improved, and the sealing stability; the flange seal ring 14 and the bolt seal ring 16 are made of rubber.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The liquefied natural gas pipeline cleaning device is characterized by comprising a supercharger, a water pump, a main pipe and an auxiliary pipe obliquely communicated with the side of the main pipe, wherein the auxiliary pipe is connected with an outlet of the water pump through a first one-way valve, one end of the main pipe is connected with an outlet of the supercharger through a second one-way valve, an outlet flange which is in split connection with a cleaning opening flange is arranged at the other end of the main pipe, a sleeve is inserted and fixed into a port of the main pipe on one side of the outlet flange, and a spiral baffle plate fixed with the inner wall of the sleeve is arranged in the sleeve;
a sealing cover is slidably sleeved on the main pipe between the outlet flange and the auxiliary pipe, and a through hole corresponding to the outlet flange screw hole is formed in the sealing cover;
one side of the side edge of the outlet flange, which is far away from the sealing cover, is provided with a lower half groove along the circumferential direction, the side wall of the sealing cover is matched with the groove, an upper half groove is arranged along the circumferential direction of the side wall of the sealing cover, and a flange sealing ring is movably arranged between the upper half groove and the lower half groove.
2. The liquefied natural gas pipeline cleaning apparatus according to claim 1, wherein: the included angle between the auxiliary pipe and the main pipe is 60-30 degrees, and the auxiliary pipe inclines towards one side of the supercharger.
3. The liquefied natural gas pipeline cleaning device according to claim 2, wherein: the sealing cover of one end of the through hole, which faces the outlet flange, is provided with a counter bore, and a bolt sealing ring is arranged in the counter bore.
4. The liquefied natural gas pipeline cleaning apparatus according to claim 3, wherein: the flange sealing ring and the bolt sealing ring are made of rubber materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021716007.0U CN213134334U (en) | 2020-08-17 | 2020-08-17 | Liquefied natural gas pipeline cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021716007.0U CN213134334U (en) | 2020-08-17 | 2020-08-17 | Liquefied natural gas pipeline cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213134334U true CN213134334U (en) | 2021-05-07 |
Family
ID=75738605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021716007.0U Active CN213134334U (en) | 2020-08-17 | 2020-08-17 | Liquefied natural gas pipeline cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213134334U (en) |
-
2020
- 2020-08-17 CN CN202021716007.0U patent/CN213134334U/en active Active
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