CN215259167U - Hydrophobic structure capable of greatly reducing hydrophobic amount of long-distance steam pipeline - Google Patents
Hydrophobic structure capable of greatly reducing hydrophobic amount of long-distance steam pipeline Download PDFInfo
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- CN215259167U CN215259167U CN202121120840.3U CN202121120840U CN215259167U CN 215259167 U CN215259167 U CN 215259167U CN 202121120840 U CN202121120840 U CN 202121120840U CN 215259167 U CN215259167 U CN 215259167U
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- 230000002209 hydrophobic effect Effects 0.000 title claims abstract description 35
- 238000007789 sealing Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 1
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Abstract
The invention discloses a hydrophobic structure capable of greatly reducing the hydrophobic volume of a long-distance steam pipeline, and solves the problem of how to reduce the hydrophobic volume of a long-distance steam system. The device comprises a space between a left-side steam conveying pipeline (1) and a right-side steam conveying pipeline (2), an outer sleeve valve sleeve (3) is arranged, a drain discharge outer through hole (4) is formed in the side wall of the bottom end of the outer sleeve valve sleeve (3), an arc-shaped strip hole (5) is formed in the side wall of the upper portion of the outer sleeve valve sleeve (3), the arc-shaped strip hole (5) is formed in the outer circle of the outer sleeve valve sleeve, an inner sleeve valve core (6) is movably sleeved in the outer sleeve valve sleeve (3), a drain discharge inner through hole (8) is formed in the side wall of the bottom end of the inner sleeve valve core (6), a valve handle (7) is arranged on the outer side wall of the upper portion of the inner sleeve valve core (6), and an automatic drain valve (12) is connected to an outer port of the drain discharge outer through hole (4). The problem of long distance steam pipeline hydrophobic volume is big is solved.
Description
Technical Field
The invention relates to a hydrophobic structure capable of greatly reducing the hydrophobic amount of a steam pipeline, in particular to a hydrophobic structure capable of greatly reducing the hydrophobic amount of a long-distance steam pipeline.
Background
The long-distance steam delivery pipeline is a pipeline for delivering superheated steam with certain pressure produced by a power plant to a steam user in an industrial park; the long steam conveying pipeline is provided with a plurality of drain ports, the drain ports are connected with L-shaped drain pipes, a drain off valve is arranged on the horizontal section of the drain pipes, an automatic drain valve is arranged on the horizontal section of the drain pipes behind the drain off valve, and the length of the drain pipe in front of the automatic drain valve is generally more than or equal to 500 mm; in the normal steam conveying process, the drainage cut-off valve is in a normally open state, drainage generated in the long-distance steam pipeline enters the automatic drainage valve after passing through the L-shaped drainage pipe and the drainage cut-off valve, and the automatic drainage valve discharges the drainage out of the long-distance steam pipeline so as to avoid the water hammer phenomenon of the drainage in the steam pipeline; when the automatic drain valve breaks down, the drain shut-off valve is closed, and then the automatic drain valve is overhauled or replaced; in the drainage system with the structure, the L-shaped drainage pipe has a certain length due to the fact that the drainage shut-off valve needs to be installed on the L-shaped drainage pipe, in the process of conveying pressurized steam of a main pipeline, a part of steam can enter the L-shaped drainage pipe section and form non-flowing dead steam, the dead steam is easy to form drainage due to non-flowing and is discharged out of a pipeline by the automatic drainage valve, then new steam is filled into the L-shaped drainage pipe section, the circulation is repeated in the above way, the drainage quantity of the whole system is large, and particularly when the conveying distance is increased, the drainage quantity of the system is large due to the fact that the arrangement of the drainage structures is increased, the drainage quantity of the system is serious, the output quantity of steam at the end of a power plant is directly increased, and the conveying energy consumption of the steam pipeline is increased; how to reduce the hydrophobic volume becomes a problem to be solved by a long-distance steam transmission pipeline.
Disclosure of Invention
The invention provides a hydrophobic structure capable of greatly reducing the hydrophobic volume of a long-distance steam pipeline and a working method thereof, and solves the technical problem of how to reduce the hydrophobic volume of a long-distance steam system.
The invention solves the technical problems by the following technical scheme:
the general concept of the invention is: the structure of a drainage shut-off valve on an L-shaped drainage pipe arranged on a traditional long steam transmission pipeline is changed into a built-in type from an external type, namely the built-in type drainage shut-off valve is directly arranged on the long steam transmission pipeline, the long steam transmission pipeline and the built-in type drainage shut-off valve are combined together, and an automatic drainage valve is directly connected to a drainage outlet, so that the length of a drainage pipe section is greatly reduced, the formation area of 'dead steam' is greatly reduced, and the aim of reducing drainage is fulfilled.
A drainage structure capable of greatly reducing the drainage quantity of a long-distance steam pipeline comprises a left-side steam conveying pipeline and a right-side steam conveying pipeline, wherein an outer sleeve valve sleeve is arranged between the left-side steam conveying pipeline and the right-side steam conveying pipeline, a drainage discharge outer through hole is formed in the side wall of the bottom end of the outer sleeve valve sleeve, an arc-shaped strip hole is formed in the side wall of the upper portion of the outer sleeve valve sleeve and is arranged along the excircle of the outer sleeve valve sleeve, an inner sleeve valve core is movably sleeved in the outer sleeve valve sleeve, a drainage discharge inner through hole is formed in the side wall of the bottom end of the inner sleeve valve core, a valve handle is arranged on the outer side wall of the upper portion of the inner sleeve valve core and is arranged in the arc-shaped strip hole, and the drainage discharge inner through hole and the drainage discharge outer through hole are correspondingly arranged; the outer port of the outer drainage outlet through hole is connected with an automatic drainage valve.
A valve core left side dynamic sealing ring is arranged between the left side surface of the inner sleeve valve core and the inner side surface of the left end of the outer sleeve valve sleeve, a valve core right side dynamic sealing ring is arranged between the right side surface of the inner sleeve valve core and the inner side surface of the right end of the outer sleeve valve sleeve, and a filter screen is arranged on the drainage discharge inner through hole; the output port of the automatic drain valve is connected with a drain discharge pipe, and a shutoff valve is arranged on the drain discharge pipe.
An operation method of a hydrophobic structure capable of greatly reducing the hydrophobic volume of a long-distance steam pipeline is characterized in that when the long-distance steam pipeline normally conveys high-pressure steam, a hydrophobic discharge inner through hole and a hydrophobic discharge outer through hole are correspondingly communicated; when the automatic drain valve has a fault, the valve handle is manually rotated to rotate the inner sleeve valve core by 90-270 degrees, so that the drain discharge inner through hole rotates into the upper semi-arc-shaped shell of the outer sleeve valve sleeve.
When the automatic steam trap valve has a fault, the inner sleeve valve core is rotated by 135 degrees by manually rotating the valve handle.
The invention has the advantages that on the premise of ensuring the safe operation of the steam pipeline, the length of the steam drainage pipeline before the automatic steam trap is shortened, the drainage quantity of the steam pipeline system, particularly the drainage quantity of the long-distance steam pipeline, is reduced, and the problem of large drainage quantity of the long-distance steam pipeline is solved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the built-in hydrophobic shut-off valve of the present invention;
FIG. 3 is a schematic diagram of the inner sleeve valve element 6 of the present invention;
fig. 4 is a schematic structural view of the outer sleeve valve sleeve 3 of the present invention;
FIG. 5 is a diagram showing the relationship between the inner sleeve valve core 6 and the outer sleeve valve sleeve 3 under normal operation;
fig. 6 is a diagram showing the relationship between the inner sleeve valve element 6 and the outer sleeve valve sleeve 3 when the automatic drain valve 12 is replaced according to the present invention.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
a hydrophobic structure capable of greatly reducing the hydrophobic amount of a long-distance steam pipeline comprises a left-side steam conveying pipeline 1 and a right-side steam conveying pipeline 2, an outer sleeve valve sleeve 3 is arranged between the left-side steam conveying pipeline 1 and the right-side steam conveying pipeline 2, a hydrophobic discharge outer through hole 4 is formed in the bottom side wall of the outer sleeve valve sleeve 3, an arc-shaped long hole 5 is formed in the upper side wall of the outer sleeve valve sleeve 3, the arc-shaped long hole 5 is arranged along the excircle of the outer sleeve valve sleeve, an inner sleeve valve core 6 is movably sleeved in the outer sleeve valve sleeve 3, a hydrophobic discharge inner through hole 8 is formed in the bottom side wall of the inner sleeve valve core 6, a valve handle 7 is arranged on the upper outer side wall of the inner sleeve valve core 6, the valve handle 7 is arranged in the arc-shaped long hole 5, and the hydrophobic discharge inner through hole 8 and the hydrophobic discharge outer through hole 4 are correspondingly arranged; an automatic drain valve 12 is connected to the outer port of the drain discharge outer through hole 4; at this time, the volume of the two hydrophobic through holes is very limited, so that the formation area of the "dead steam" is greatly reduced.
A valve core left side dynamic sealing ring 10 is arranged between the left side surface of the inner sleeve valve core 6 and the inner side surface of the left end of the outer sleeve valve sleeve 3, a valve core right side dynamic sealing ring 11 is arranged between the right side surface of the inner sleeve valve core 6 and the inner side surface of the right end of the outer sleeve valve sleeve 3, and a filter screen 9 is arranged on the drainage discharge inner through hole 8; a drain discharge pipe 13 is connected to an output port of the automatic drain valve 12, and a shut-off valve 14 is provided in the drain discharge pipe 13.
When the long-distance steam pipeline normally conveys high-pressure steam, the inner drainage discharge through hole 8 and the outer drainage discharge through hole 4 are correspondingly communicated; when the automatic drain valve 12 breaks down, the valve handle 7 is manually rotated, the inner sleeve valve core 6 is rotated by 90-270 degrees, the inner drain discharge through hole 8 is rotated into the upper half arc-shaped shell of the outer sleeve valve sleeve 3, and due to the fact that the temperature of steam in the upper half part of the inner sleeve valve core 6 is relatively high, water cannot be formed in the inner drain discharge through hole 8 in the upper half arc-shaped shell.
When the automatic drain valve 12 has a fault, the switch of the built-in shut-off valve is adjusted by manually rotating the position of the valve handle 7, when the drain discharge inner through hole 8 and the drain discharge outer through hole 4 are completely overlapped, the built-in shut-off valve is in a completely opened state, when the drain discharge inner through hole 8 and the drain discharge outer through hole 4 are partially overlapped, the built-in shut-off valve is in a partially opened state, and when the valve handle 7 is rotated by 135 degrees from the completely opened state, the built-in shut-off valve is in a safe closed state.
Claims (2)
1. A hydrophobic structure capable of greatly reducing the hydrophobic amount of a long-distance steam pipeline comprises a left-side steam conveying pipeline (1) and a right-side steam conveying pipeline (2), and is characterized in that an outer sleeve valve sleeve (3) is arranged between the left-side steam conveying pipeline (1) and the right-side steam conveying pipeline (2), a hydrophobic discharge outer through hole (4) is arranged on the bottom side wall of the outer sleeve valve sleeve (3), an arc-shaped strip hole (5) is arranged on the upper side wall of the outer sleeve valve sleeve (3), the arc-shaped strip hole (5) is arranged along the excircle of the outer sleeve valve sleeve, an inner sleeve valve core (6) is movably sleeved in the outer sleeve valve sleeve (3), a hydrophobic discharge inner through hole (8) is arranged on the bottom side wall of the inner sleeve valve core (6), a valve handle (7) is arranged on the upper outer side wall of the inner sleeve valve core (6), the valve handle (7) is arranged in the arc-shaped strip hole (5), the inner drainage discharge through hole (8) and the outer drainage discharge through hole (4) are correspondingly arranged; an automatic drain valve (12) is connected to the outer port of the drain discharge outer through hole (4).
2. The hydrophobic structure capable of greatly reducing the hydrophobic amount of a long-distance steam pipeline is characterized in that a valve core left side dynamic sealing ring (10) is arranged between the left side surface of an inner sleeve valve core (6) and the inner side surface of the left end of an outer sleeve valve sleeve (3), a valve core right side dynamic sealing ring (11) is arranged between the right side surface of the inner sleeve valve core (6) and the inner side surface of the right end of the outer sleeve valve sleeve (3), and a filter screen (9) is arranged on a hydrophobic discharge inner through hole (8); the output port of the automatic drain valve (12) is connected with a drain discharge pipe (13), and the drain discharge pipe (13) is provided with a shutoff valve (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121120840.3U CN215259167U (en) | 2021-05-24 | 2021-05-24 | Hydrophobic structure capable of greatly reducing hydrophobic amount of long-distance steam pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121120840.3U CN215259167U (en) | 2021-05-24 | 2021-05-24 | Hydrophobic structure capable of greatly reducing hydrophobic amount of long-distance steam pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215259167U true CN215259167U (en) | 2021-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121120840.3U Withdrawn - After Issue CN215259167U (en) | 2021-05-24 | 2021-05-24 | Hydrophobic structure capable of greatly reducing hydrophobic amount of long-distance steam pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215259167U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217800A (en) * | 2021-05-24 | 2021-08-06 | 中国能源建设集团山西省电力勘测设计院有限公司 | Hydrophobic structure capable of greatly reducing hydrophobic amount of long-distance steam pipeline and working method thereof |
-
2021
- 2021-05-24 CN CN202121120840.3U patent/CN215259167U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217800A (en) * | 2021-05-24 | 2021-08-06 | 中国能源建设集团山西省电力勘测设计院有限公司 | Hydrophobic structure capable of greatly reducing hydrophobic amount of long-distance steam pipeline and working method thereof |
| CN113217800B (en) * | 2021-05-24 | 2024-03-29 | 中国能源建设集团山西省电力勘测设计院有限公司 | Hydrophobic structure capable of greatly reducing hydrophobic capacity of long-distance steam pipeline and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20211221 Effective date of abandoning: 20240329 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20211221 Effective date of abandoning: 20240329 |