CN215259764U - Compact horizontal low-pressure heater condensation water pipeline system of thermal power plant - Google Patents
Compact horizontal low-pressure heater condensation water pipeline system of thermal power plant Download PDFInfo
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- CN215259764U CN215259764U CN202022943437.2U CN202022943437U CN215259764U CN 215259764 U CN215259764 U CN 215259764U CN 202022943437 U CN202022943437 U CN 202022943437U CN 215259764 U CN215259764 U CN 215259764U
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Abstract
The utility model relates to a thermal power plant turbo generator set condensate heating system's pipeline arrangement field, in particular to horizontal low pressure heater condensate pipe-line system of compact of thermal power plant. The low-pressure heater is horizontally arranged, a bypass pipeline is connected between the condensed water inlet pipeline and the condensed water outlet pipeline through a T-shaped three-way pipe, and a bypass valve is arranged in the middle of the bypass pipeline. The utility model has the advantages that: the utility model discloses a change current condensate pipe's arrangement mode, adopt and encircle the design for the condensate pipe structure of new design is compacter, and the drag reduction characteristic of rational utilization tee bend when playing the reposition of redundant personnel effect, can also reduce the effect of condensate flow dynamic resistance. The utility model discloses in being in same vertical plane with the valve setting, reduce valve area effectively, simplify a gallows design and arrange simultaneously, it is more convenient to construct the installation.
Description
Technical Field
The utility model relates to a thermal power plant turbo generator set condensate heating system's pipeline arrangement field, in particular to horizontal low pressure heater condensate pipe-line system of compact of thermal power plant.
Background
The low-pressure heater is necessary equipment in a turbine regenerative heating system and is widely applied to power plants. The heat energy utilization rate of the whole thermodynamic system of the power plant can be improved to a great extent, and the emission of heat to a low-temperature heat source is reduced by reducing the amount of condensed water and the amount of circulating cooling water of the condenser, so that the effect of greatly saving energy is achieved.
The low-pressure heater can be divided into a vertical type and a horizontal type according to the distribution mode, wherein the horizontal type low-pressure heater has the advantages of good heat transfer effect, stable water level, convenience in arrangement of a steam cooling section and a drainage cooling section in structure and the like, and is widely applied to a thermal power plant. Practical applications of low-pressure heaters also have a number of disadvantages:
firstly, although the low-pressure heater can improve the heat utilization rate and reduce the heat loss, the complexity of a pipeline system in a steam turbine room is increased due to the low-pressure heater and the pipeline arrangement of the low-pressure heater, and the flow resistance loss of condensed water is increased due to the complex pipeline arrangement, so that the energy consumption of the condensed water pump is increased to a certain extent. In order to exert the advantages of the low-pressure heater to the maximum extent, the arrangement of a main condensed water channel and a bypass system of the low-pressure heater needs to be optimized as much as possible, so that the flow resistance loss of the working medium in the pipe is reduced as much as possible.
Secondly, with the increase of the capacity of the thermal power plant unit, the amount of the condensed water is also increased, so that the diameter and the rigidity of a condensed water pipeline are large, the stress of the condensed water pipeline is large, and the design and the arrangement of a supporting and hanging frame are difficult.
Finally, with the increase of the capacity of the thermal power plant unit, the weight and the size of the valve of the condensate system are large, so that the valve is difficult to support and hang, and the stress of the condensate system can be increased.
In summary, how to properly optimize the arrangement makes the structure of the condensed water system compact, reduces the flowing resistance of the condensed water, reduces the floor area of the valve, simplifies the design and the arrangement of the supporting and hanging bracket, and is the key point and the difficulty point of the pipeline arrangement of the high-capacity horizontal low-pressure heater.
Disclosure of Invention
In view of this, the present invention provides a compact condensed water pipeline system suitable for a large-capacity horizontal low-pressure heater, which reduces the flow loss of condensed water working medium in the pipe, reduces the floor area of the valve, simplifies the design and layout of the support and hanger, and makes the condensed water pipeline system of the low-pressure heater compact in structure.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
the utility model provides a horizontal low pressure feed water pipe-line system of compact of thermal power plant, includes low pressure feed water heater, condensate inlet pipe way, condensate outlet pipe way, its characterized in that: the low-pressure heater is horizontally arranged, a bypass pipeline is connected between the condensed water inlet pipeline and the condensed water outlet pipeline through a T-shaped three-way pipe, a bypass valve is arranged in the middle of the bypass pipeline, the lower end of the condensed water inlet pipeline is connected with the condensed water main channel through a first valve, the tail end of the condensed water main channel is connected to the water inlet end below the low-pressure heater, the water outlet end above the low-pressure heater is connected with a condensed water outlet channel, the condensed water outlet channel is connected with the condensed water outlet pipeline through a second valve, the T-shaped three-way pipe is arranged above the positions of the first valve and the second valve, and the position height of the T-shaped three-way pipe is greater than the position heights of the first valve and the second valve.
Preferably, the condensed water inlet pipeline and the condensed water outlet pipeline are vertically arranged, the T-shaped three-way pipe comprises a main through pipe and branch pipes, the main through pipe is respectively arranged in the middle of the condensed water inlet pipeline and the condensed water outlet pipeline, the branch pipes and the main through pipe are mutually perpendicular and horizontally arranged, and two ends of the bypass pipeline are connected with the branch pipes on two sides.
Preferably, the condensed water inlet pipe is connected to the first valve through a first turn pipe.
Preferably, the condensed water outlet passage is connected to the second valve through a second turning pipe.
Preferably, the main condensed water passage is connected to a water inlet end below the low pressure heater through a third turning pipe.
Preferably, the second valve is connected to the condensed water outlet pipe through a fourth turning pipe.
Preferably, the main duct is disposed above the first turning duct and the fourth turning duct.
Preferably, the first valve and the second valve are arranged horizontally, the bypass valve is closed, and the condensed water flows through the main through pipe of the T-shaped tee pipe.
Preferably, the bypass valve is arranged horizontally, the first valve and the second valve are closed, and the condensed water flows through a branch pipe of the T-shaped tee pipe.
Preferably, the first valve, the second valve and the bypass valve are arranged horizontally, the first valve and the second valve are arranged at the same height, and the first valve, the second valve and the bypass valve are arranged in the same vertical plane.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a change current condensate pipe's arrangement structure form, adopt and encircle the design, arrange the condensate pipe system near low pressure feed water heater outer wall for the condensate pipe structure of new design is compacter, and the tee bend drag reduction characteristic of rational utilization when playing the reposition of redundant personnel effect, can also reduce the effect of condensate flow dynamic resistance. The utility model discloses in being in same vertical plane with the valve setting, reduce valve area effectively, simplify a gallows design and arrange simultaneously, it is more convenient to construct the installation. The utility model has the advantages of the drag reduction is effectual, and pipeline and valve arrangement compact structure, the pipeline rigidity is little, and strong adaptability conveniently overhauls and maintains.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic view of the structure of the present invention.
Fig. 3 is a left side view of the structure of the present invention.
The graphic symbols are illustrated as follows:
1-condensed water inlet pipeline, 2-T-shaped tee pipe, 3-condensed water outlet pipeline, 4-low pressure heater, 5-bypass pipeline, 6-bypass valve, 7-first valve, 8-condensed water main channel, 9-condensed water outlet channel, 10-second valve, 11-main through pipe, 12-branch pipe, 13-first turning pipeline, 14-second turning pipeline, 15-third turning pipeline and 16-fourth turning pipeline.
Detailed Description
The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
To further clarify the objects, features, and functions of the present invention, a review board may further describe the following detailed description of the invention in conjunction with the accompanying drawings:
referring to fig. 1-3, a compact horizontal low-pressure heater condensed water pipeline system of a thermal power plant is shown, which comprises a low-pressure heater 4, a condensed water inlet pipeline 1, and a condensed water outlet pipeline 3, and is characterized in that: the low-pressure heater 4 is horizontally arranged, a bypass pipeline 5 is connected between the condensed water inlet pipeline 1 and the condensed water outlet pipeline 3 through a T-shaped three-way pipe 2, a bypass valve 6 is arranged in the middle of the bypass pipeline 5, the lower end of the condensed water inlet pipeline 1 is connected with a condensed water main channel 8 through a first valve 7, the tail end of the condensed water main channel 8 is connected to the water inlet end below the low-pressure heater 4, the water outlet end above the low-pressure heater 4 is connected with a condensed water outlet channel 9, the condensed water outlet channel 9 is connected with the condensed water outlet pipeline 3 through a second valve 10, the T-shaped three-way pipe 2 is arranged above the positions of the first valve 7 and the second valve 10, and the position height of the T-shaped three-way pipe 2 is larger than the position heights of the first valve 7 and the second valve 10.
Preferably, the condensed water inlet pipeline 1 and the condensed water outlet pipeline 3 are vertically arranged, the T-shaped three-way pipe 2 comprises a main through pipe 11 and branch pipes 12, the main through pipe 11 is respectively arranged in the middle of the condensed water inlet pipeline 1 and the condensed water outlet pipeline 3, the branch pipes 12 and the main through pipe 11 are mutually perpendicular and horizontally arranged, and two end parts of the bypass pipeline 5 are connected with the branch pipes 12 on two sides.
Preferably, the condensed water inlet conduit 1 is connected to the first valve 7 by a first turn conduit 13.
Preferably, the condensed water outlet passage 9 is connected to the second valve 10 through a second turning pipe 14.
Preferably, the main condensed water passage 8 is connected to a water inlet end below the low pressure heater 4 through a third turn pipe 15.
Preferably, said second valve 10 is connected to the condensate outlet conduit 3 by means of a fourth turning conduit 16.
Preferably, said main duct 11 is arranged above the first and fourth turning ducts 13, 16.
Preferably, the first valve 7 and the second valve 10 are arranged horizontally, the bypass valve 6 is closed, and the condensed water flows through the main pipe 11 of the T-tee 2.
Preferably, the bypass valve 6 is arranged horizontally, the first valve 7 and the second valve 10 are closed, and the condensed water flows through the branch pipe 12 of the T-tee 2.
Preferably, the first valve 7, the second valve 10 and the bypass valve 6 are arranged horizontally, the first valve 7 and the second valve 10 are arranged at the same height, and the first valve 7, the second valve 10 and the bypass valve 6 are arranged in the same vertical plane.
The utility model discloses a horizontal low pressure feed water pipe-line system of compact of thermal power plant, when 4 normal operating of low pressure feed water heater, bypass valve 6 closes, first valve 7 and second valve 10 are opened, the comdenstion water that comes from condensate inlet pipe 1, main siphunculus 11 through T type three-way pipe 2, first valve 7, condensate main channel 8, get into low pressure feed water heater 4, flow out low pressure feed water heater 4 after the heating, the condensate outlet passage 9 of flowing through, second valve 10, the main siphunculus 11 of T type three-way pipe 2, condensate outlet pipe 3, flow in follow-up other pipe-line system or equipment.
When the low-pressure heater 4 breaks down or is overhauled, the first valve 7 and the second valve 10 are closed, the bypass valve 6 is opened, the condensed water from the condensed water inlet pipeline 1 flows into other subsequent pipeline systems or equipment through the branch pipe 12 of the T-shaped three-way pipe 2 in the condensed water inlet pipeline 1, the bypass pipeline 5, the bypass valve 6, the branch pipe 12 of the T-shaped three-way pipe 2 in the condensed water outlet pipeline 3, the main through pipe 11 and the condensed water outlet pipeline 3 in sequence.
The first valve 7 and the second valve 10 are arranged at the same height, the first valve 7, the second valve 10 and the bypass valve 6 are horizontally arranged, and the first valve 7, the second valve 10 and the bypass valve 6 are arranged in the same vertical plane. The utility model discloses all set up first valve 7, second valve 10 and bypass valve 6 into the level and arrange, can conveniently set up solitary supporting platform, not only make things convenient for the valve operation to the platform supports valve weight, reduces the influence of valve weight to pipeline stress.
The utility model provides a compact horizontal low pressure heater condensate pipe way system of thermal power plant compares with current pipe way system, current condensate pipe way system compares with T type three-way pipe is horizontal, make the reposition of redundant personnel pipeline and water inlet and outlet pipeline, valve be at same height, lead to the condensate water to flush the main inlet tube inflow after, when entering T type three-way pipe reposition of redundant personnel to both sides pipeline, can cause great impact force to the handing-over portion of T type three-way pipe, the pipeline is local to stand the great impact force of rivers and seriously influence the water conservancy diversion life of pipe way system for a long time, the utility model discloses a change current condensate pipe way's arrangement mode, adopt the surrounding design, arrange the condensate pipe way system near low pressure heater outer wall, make newly-designed condensate pipe way structure compacter, and the drag reduction characteristic of rational utilization tee bend, when playing the reposition of redundant personnel effect, but also reduce the effect of the flow resistance of the condensed water. The utility model discloses in being in same vertical plane with the valve setting, reduce valve area effectively, simplify a gallows design and arrange simultaneously, it is more convenient to construct the installation. The utility model discloses drag reduction is effectual, and pipeline and valve arrangement are compact, and the pipeline rigidity is little, strong adaptability.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a horizontal low pressure feed water pipe-line system of compact of thermal power plant, includes low pressure feed water heater, condensate inlet pipe way, condensate outlet pipe way, its characterized in that: the low-pressure heater is arranged in a horizontal mode,
a bypass pipeline is connected between the condensed water inlet pipeline and the condensed water outlet pipeline through a T-shaped three-way pipe, a bypass valve is arranged in the middle of the bypass pipeline,
the lower end of the condensed water inlet pipeline is connected with a condensed water main channel through a first valve, the tail end of the condensed water main channel is connected with the water inlet end below the low-pressure heater, the water outlet end above the low-pressure heater is connected with a condensed water outlet channel, the condensed water outlet channel is connected with a condensed water outlet pipeline through a second valve,
the T-shaped three-way pipe is arranged above the positions of the first valve and the second valve, and the height of the T-shaped three-way pipe is larger than that of the positions of the first valve and the second valve.
2. The condensate pipe system of the compact horizontal low-pressure heater of the thermal power plant as claimed in claim 1, wherein the condensate inlet pipe and the condensate outlet pipe are vertically arranged, the T-shaped tee pipe comprises a main through pipe and a branch pipe, the main through pipe is respectively arranged in the middle of the condensate inlet pipe and the condensate outlet pipe, the branch pipe and the main through pipe are vertically and horizontally arranged, and two ends of the bypass pipe are connected with the branch pipes on two sides.
3. The thermal power plant compact horizontal low pressure heater condensate water piping system of claim 1, wherein the condensate water inlet pipe is connected to the first valve through a first turn pipe.
4. The thermal power plant compact horizontal low pressure heater condensate water piping system of claim 1, wherein the condensate water outlet passage is connected to a second valve through a second turn conduit.
5. The compact horizontal low-pressure heater condensate water piping system of a thermal power plant according to claim 1, wherein the main condensate water passage is connected to a water inlet end below the low-pressure heater through a third turn pipe.
6. The thermal power plant compact horizontal low pressure heater condensate water conduit system of claim 1, wherein the second valve is connected to a condensate outlet conduit by a fourth turn conduit.
7. The condensate water piping system of the compact horizontal low pressure heater of the thermal power plant as claimed in claim 1, wherein the first and second valves are arranged horizontally, the bypass valve is closed, and the condensate water flows through a main pipe of the T-tee.
8. The thermal power plant compact horizontal low pressure heater condensate water piping system of claim 1, wherein the bypass valve is horizontally disposed, the first and second valves are closed, and condensate water flows through a branch pipe of the tee pipe.
9. The thermal power plant compact horizontal low pressure heater condensate water piping system of claim 2, wherein the main pipe is disposed above the first turn pipe and the fourth turn pipe.
10. The thermal power plant compact horizontal low pressure heater condensate water piping system of any one of claims 1-8, wherein the first valve, the second valve and the bypass valve are horizontally disposed, the first valve and the second valve are disposed at a same height, and the first valve, the second valve and the bypass valve are disposed in a same vertical plane.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022943437.2U CN215259764U (en) | 2020-12-10 | 2020-12-10 | Compact horizontal low-pressure heater condensation water pipeline system of thermal power plant |
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| CN202022943437.2U CN215259764U (en) | 2020-12-10 | 2020-12-10 | Compact horizontal low-pressure heater condensation water pipeline system of thermal power plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112393222A (en) * | 2020-12-10 | 2021-02-23 | 华能汕头海门发电有限责任公司 | Arrangement method of condensation water pipeline system of horizontal low-pressure heater of thermal power plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112393222A (en) * | 2020-12-10 | 2021-02-23 | 华能汕头海门发电有限责任公司 | Arrangement method of condensation water pipeline system of horizontal low-pressure heater of thermal power plant |
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