CN219605357U - Steam extraction pipeline drainage system of steam turbine of thermal power plant - Google Patents
Steam extraction pipeline drainage system of steam turbine of thermal power plant Download PDFInfo
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- CN219605357U CN219605357U CN202223262550.XU CN202223262550U CN219605357U CN 219605357 U CN219605357 U CN 219605357U CN 202223262550 U CN202223262550 U CN 202223262550U CN 219605357 U CN219605357 U CN 219605357U
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- extraction pipeline
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- steam extraction
- thermal power
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- 238000000605 extraction Methods 0.000 title claims abstract description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000003860 storage Methods 0.000 claims abstract description 16
- 230000007797 corrosion Effects 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 229920005669 high impact polystyrene Polymers 0.000 claims description 2
- 239000004797 high-impact polystyrene Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 10
- 238000004140 cleaning Methods 0.000 abstract description 4
- 230000009466 transformation Effects 0.000 abstract description 3
- 238000005086 pumping Methods 0.000 abstract 1
- 230000002209 hydrophobic effect Effects 0.000 description 4
- 235000003932 Betula Nutrition 0.000 description 2
- 241000219429 Betula Species 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 241000245063 Primula Species 0.000 description 2
- 235000000497 Primula Nutrition 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a steam extraction pipeline drainage system of a steam turbine of a thermal power plant, and relates to the technical field of drainage transformation of steam extraction pipelines. The utility model relates to transformation of a steam extraction pipeline drainage system of a steam turbine of a thermal power plant, which comprises a steam extraction pipeline, wherein one end of the steam extraction pipeline is provided with a steam extraction pipeline check valve, one side of the steam extraction pipeline check valve is provided with a drainage pipe, one end of the drainage pipe is provided with a new drainage pipe, and one end of the new drainage pipe is provided with a zero-meter layer. The utility model relates to a novel zero-meter-layer water storage tank, which is connected to a condenser and is used for pumping out drain water which is not discharged completely by a steam extraction pipeline by fully utilizing negative pressure. Fully ensures the drainage and the cleaning in the steam extraction pipeline, ensures that the expansion is more uniform and the starting time is shorter in the starting process of the steam turbine.
Description
Technical Field
The utility model relates to the technical field of drainage transformation of steam extraction pipelines, in particular to a drainage system of a steam extraction pipeline of a steam turbine of a thermal power plant.
Background
The steam extraction pipeline drainage system of the steam turbine of the thermal power plant is modified, and drainage is used for removing condensate water in steam equipment and pipelines and overflow water in a water container, so that the normal working condition of each equipment can be ensured, and the working medium loss in a thermodynamic system can be reduced. It can be classified into both start-up water repellency and often water repellency.
The technology relates to a drainage system of an air exhaust pipeline of a turbo generator set of a heat and electricity limited company of Betula co-coupling primula. Because the unit is a 12MW high-temperature high-pressure unit, the thickness of the upper cylinder and the lower cylinder is thicker as a whole after special manufacture of a martial turbine plant, the dewatering amount is more at the initial stage of starting the unit, and all dewatering systems are modified to a certain extent, so that the dewatering can be fully performed in the starting process, and the starting time is shortened.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a steam extraction pipeline drainage system of a steam turbine of a thermal power plant, which solves the problems in the background art. In order to achieve the above purpose, the utility model is realized by the following technical scheme: the steam extraction pipeline drainage system of the steam turbine of the thermal power plant comprises a steam extraction pipeline, one end of the steam extraction pipeline is provided with a steam extraction pipeline check valve, one side of the steam extraction pipeline check valve is provided with a drain pipe, one end of the drain pipe is provided with a new drain pipe, one end of the new drain pipe is provided with a zero-meter layer, one end of the zero-meter layer is provided with a water storage tank, and one end of the water storage tank is provided with a condenser.
Preferably, the zero meter layer is arranged on a datum point of zero meter, and the material of the zero meter layer is a corrosion-resistant material.
Preferably, the water storage tank is made of corrosion-resistant alloy.
Preferably, the condenser is also called a water-return device, and the condenser is divided into a water-cooling condenser and an air-cooling condenser.
The utility model provides a steam extraction pipeline drainage system of a steam turbine of a thermal power plant. The device comprises the following
The beneficial effects are that:
(1) The utility model connects a new drain pipe to zero meter layer between the automobile and the locomotive on the front and the back drain pipes of the check valve of the original steam extraction pipe. The water storage tank is additionally arranged on the zero-meter layer and connected to the condenser, and negative pressure is fully utilized to drain water which is not discharged by the steam extraction pipeline.
(2) In the starting process, the utility model performs negative pressure extraction once at intervals. Fully ensures the drainage and the cleaning in the steam extraction pipeline, ensures that the expansion is more uniform and the starting time is shorter in the starting process of the steam turbine.
Drawings
Fig. 1 is a schematic diagram of modification of a steam extraction pipeline drainage system of a steam turbine in a thermal power plant with the structure of the utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1, the present utility model provides a technical solution: a steam extraction pipeline drainage system of a steam turbine of a thermal power plant comprises a steam extraction pipeline, wherein the steam extraction pipeline is made of corrosion-resistant alloy, and the length of the steam extraction pipeline is longer. The material of the hydrophobic pipe is the same as that of the new hydrophobic pipe, and the hydrophobic pipe is made of high impact polystyrene. One end of the steam extraction pipeline is provided with a steam extraction pipeline check valve, and the steam extraction pipeline check valve can effectively prevent the extracted steam from flowing back. The hydrophobic pipe can effectively drain water, and prevent water from being accumulated at one place all the time. One side of the check valve of the steam extraction pipeline is provided with a water drain pipe, and the water drain pipe can effectively drain water. One end of the new water-repellent pipe is provided with a zero meter layer, and the zero meter layer is arranged on the zero meter reference point, so that the whole system is in a horizontal state. The zero meter layer is arranged on the datum point of zero meter, and the material of the zero meter layer is a corrosion-resistant material. One end of the zero meter layer is provided with a water storage tank, and the water storage tank can effectively store a large amount of water. The water storage tank has a larger volume, and the water storage tank is made of corrosion-resistant alloy. The utility model discloses a novel steam extraction pipeline check valve, which is characterized in that one end of a water storage tank is provided with a condenser, the condenser can effectively condense steam, the condenser is also called a water re-heater, and the condenser is divided into a water-cooling condenser and an air-cooling condenser. The water storage tank is additionally arranged on the zero-meter layer and connected to the condenser, and negative pressure is fully utilized to drain water which is not discharged by the steam extraction pipeline. In the starting process, the negative pressure is extracted once at intervals. Fully ensures the drainage and the cleaning in the steam extraction pipeline, ensures that the expansion is more uniform and the starting time is shorter in the starting process of the steam turbine.
A steam extraction pipeline drainage system of a steam turbine of a thermal power plant comprises the following steps:
step one: a check valve of the steam extraction pipeline is arranged at one side of the original steam extraction pipeline;
step two: another new drain pipeline is connected to the zero meter layer between the automobile and the locomotive on the front and the rear drain pipes of the check valve of the original steam extraction pipeline;
step three: a water storage tank is additionally arranged on the zero-meter layer and is connected to the condenser, and negative pressure is fully utilized to draw out drain water which is not discharged by the steam extraction pipeline;
step four: and in the starting process, negative pressure extraction is carried out once at intervals. Fully ensures the drainage and the cleaning in the steam extraction pipeline, ensures that the expansion is more uniform and the starting time is shorter in the starting process of the steam turbine.
When in use, the technology relates to a drainage system of an air extraction pipeline of a turbo generator set of the Betula co-coupling primula thermal electric limited company. Because the unit is a 12MW high-temperature high-pressure unit, the thickness of the upper cylinder and the lower cylinder is thicker as a whole after special manufacture of a martial turbine plant, the dewatering amount is more at the initial stage of starting the unit, and all dewatering systems are modified to a certain extent, so that the dewatering systems can be fully dewatered in the starting process, the starting time is shortened, and a new dewatering pipeline is additionally connected to a zero-meter layer between a steam turbine and a vehicle on the front and rear dewatering pipes of the check valve of the original steam extraction pipeline. The water storage tank is additionally arranged on the zero-meter layer and connected to the condenser, and negative pressure is fully utilized to drain water which is not discharged by the steam extraction pipeline. And in the starting process, negative pressure extraction is carried out once at intervals. The steam turbine steam extraction device has the advantages that the drainage and the evacuation in the steam extraction pipeline are fully guaranteed, the expansion is more uniform, the starting time is shorter, the drainage is more comprehensive, redundant water cannot be remained in the steam extraction pipeline, and the practicability of the whole steam turbine steam extraction device is enhanced.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (5)
1. Steam turbine extraction pipeline drainage system of thermal power factory, including extraction pipeline, its characterized in that: one end of the steam extraction pipeline is provided with a steam extraction pipeline check valve, one side of the steam extraction pipeline check valve is provided with a water drain pipe, one end of the water drain pipe is provided with a new water drain pipe, one end of the new water drain pipe is provided with a zero meter layer, one end of the zero meter layer is provided with a water storage tank, and one end of the water storage tank is provided with a condenser.
2. The steam turbine extraction steam line drainage system of a thermal power plant according to claim 1, wherein: the steam extraction pipeline is made of corrosion-resistant alloy, the length of the steam extraction pipeline is long, the material of the steam extraction pipeline is the same as that of a new steam extraction pipeline, and the steam extraction pipeline is made of high impact polystyrene.
3. The steam turbine extraction steam line drainage system of a thermal power plant according to claim 1, wherein: the zero meter layer is arranged on a datum point of zero meter, and the material of the zero meter layer is a corrosion-resistant material.
4. The steam turbine extraction steam line drainage system of a thermal power plant according to claim 1, wherein: and the water storage tank is made of corrosion-resistant alloy.
5. The steam turbine extraction steam line drainage system of a thermal power plant according to claim 1, wherein: the condenser is also called a water-return device, and is divided into a water-cooling condenser and an air-cooling condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223262550.XU CN219605357U (en) | 2022-12-06 | 2022-12-06 | Steam extraction pipeline drainage system of steam turbine of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223262550.XU CN219605357U (en) | 2022-12-06 | 2022-12-06 | Steam extraction pipeline drainage system of steam turbine of thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219605357U true CN219605357U (en) | 2023-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223262550.XU Active CN219605357U (en) | 2022-12-06 | 2022-12-06 | Steam extraction pipeline drainage system of steam turbine of thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219605357U (en) |
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2022
- 2022-12-06 CN CN202223262550.XU patent/CN219605357U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A drainage system for steam turbine extraction pipelines in thermal power plants Effective date of registration: 20231106 Granted publication date: 20230829 Pledgee: Harbin Bank Co.,Ltd. Jiamusi Branch Pledgor: Huanan Xielian Baochun Thermal Power Co.,Ltd. Registration number: Y2023230000092 |