CN218847315U - Power plant feed water flow sampling pipeline - Google Patents
Power plant feed water flow sampling pipeline Download PDFInfo
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- CN218847315U CN218847315U CN202221862275.2U CN202221862275U CN218847315U CN 218847315 U CN218847315 U CN 218847315U CN 202221862275 U CN202221862275 U CN 202221862275U CN 218847315 U CN218847315 U CN 218847315U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The utility model discloses a power plant's feedwater flow sample pipeline, including supply channel, long footpath nozzle, clean water cavity, inlet tube, first sampling tube, second sampling tube, intermediate pipe, flow differential pressure transmitter and blow off pipe, the long footpath nozzle is located on the supply channel, first sample connection and second sample connection have been drawn forth respectively to the both sides of long footpath nozzle, last first sample entry and the second sample entry of being provided with of flow differential pressure transmitter, the one end of first sampling tube is connected first sample connection, the other end of first sampling tube is connected first sample entry, the one end of second sampling tube is connected the second sample connection, the second sampling tube is connected the second sample entry. This technical scheme is used for solving the problem that the sample pipeline of current power plant feedwater takes place to block up easily.
Description
Technical Field
The utility model belongs to the technical field of power plant equipment, concretely relates to power plant's feed water flow sample pipeline.
Background
In a working environment that main water of a power plant is at high temperature and high pressure (the rated temperature is 600 ℃ and the rated pressure is 24.9 MPa), a long-diameter nozzle welding mode is generally adopted for flow detection, the specification of a pipeline is phi 508 multiplied by 55, the material WB36 of the pipeline is adopted, a sampling tube is made of 316 stainless steel, and the specification of the sampling tube is phi 16 multiplied by 4, wherein certain measuring points fluctuate for many times after a unit is started or the deviation of measured values is large, and the detection finds that the reason is: from the major diameter nozzle sample back, because of the sampling tube elbow is more and the pipe diameter is less, have a large amount of impurity after shutting down the maintenance at every turn, impurity gets into the sampling tube after the boiler is watered, and is stifled dead with sampling tube elbow department, unable mediation, after the cutting sampling tube mediation, the jam appears again in the short time, leads to the unable measurement of main water flow, can't monitor main water flow, endangers unit safe operation.
SUMMERY OF THE UTILITY MODEL
To the technical problem that above-mentioned exists, the utility model provides a power plant's water supply flow sample pipeline to solve the problem that the sample pipeline of current power plant's feedwater takes place to block up easily, this power plant's water supply flow sample pipeline can wash the sample pipeline after shutting down and overhauing, avoids the pipe blockage.
The utility model provides a power plant's feedwater flow sampling pipeline, including supply channel, long footpath nozzle, clean water cavity, inlet tube, first sampling tube, second sampling tube, intermediate pipe, flow differential pressure transmitter and blow off pipe, the long footpath nozzle is located on the supply channel, first sample connection and second sample connection have been drawn forth respectively to the both sides of long footpath nozzle, last first sample entry and the second sample entry of being provided with of flow differential pressure transmitter, the one end of first sampling tube is connected first sample connection, the other end of first sampling tube is connected first sample entry, the one end of second sampling tube is connected the second sample entry, the second sampling tube is connected second sample entry, first sample entry is provided with first control valve, the second sample entry is provided with the second control valve, first sample entry is provided with the third control valve, second sample entry is provided with the fourth control valve, intermediate pipe connect in the other end of first sampling tube with between the other end of second sampling tube, be provided with the fifth control valve on the intermediate pipe the clean water cavity connect respectively with the sixth control valve on the inlet tube the clean water cavity the one end of second sampling tube, the clean water cavity is provided with the seventh control valve and the one end of second sampling tube, the clean water cavity is provided with the seventh control valve on the clean water cavity.
Furthermore, the water inlet pipe, the first sampling pipe, the second sampling pipe, the middle pipe and the sewage discharge pipe are all steel pipes.
Further, the sewage discharge pipe is connected with a sewage tank.
When the flow detection of the feed water is carried out by the power plant feed water flow sampling pipeline, the first control valve, the second control valve, the third control valve and the fourth control valve can be opened, the fifth control valve, the sixth control valve and the seventh control valve are closed, and the flow detection is carried out by the flow differential pressure transmitter; after the machine is shut down and overhauled, because the feed water contains impurity, can lead to first sampling tube with get into impurity in the second sampling tube, at this moment, can close first control valve, second control valve, third control valve and fourth control valve open fifth control valve, sixth control valve and seventh control valve start the force (forcing) pump makes highly compressed rivers loop through the inlet tube first sampling tube, the intermediate pipe second sampling tube with the blow off pipe washes impurity wherein, avoids appearing first sampling tube with the condition that the second sampling tube blockked up.
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 diagram of a power plant feedwater flow sampling line.
Detailed Description
The utility model discloses a power plant's water supply flow sample pipeline, this power plant's water supply flow sample pipeline can wash the sample pipeline after shutting down to overhaul, avoids the pipe blockage.
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, only some embodiments, not all embodiments, of the present invention are described. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the utility model discloses a power plant's water supply flow sampling pipeline, including supply line 17, major diameter nozzle 19, clean water cavity 7, inlet tube 5, first sampling tube 9, second sampling tube 12, intermediate pipe 10, flow differential pressure transmitter 15 and blow off pipe 13, major diameter nozzle 19 is located on supply line 17, first sample connection 18 and second sample connection 20 have been drawn forth respectively to the both sides of major diameter nozzle 19, be provided with first sample entry 14 and second sample entry 16 on the flow differential pressure transmitter 15, the one end of first sampling tube 9 is connected first sample connection 18, the other end of first sampling tube 9 is connected first sample connection 14, the one end of second sampling tube 12 is connected second sample connection 20, the second sampling pipe 12 is connected the second sample entry 16, first sample mouth 18 is provided with first control valve 1, second sample mouth 20 is provided with second control valve 2, first sample entry 14 is provided with third control valve 3, second sample entry 16 is provided with fourth control valve 4, well pipe 10 connect in the other end of first sampling pipe 9 with between the other end of second sampling pipe 12, be provided with fifth control valve 11 on well pipe 10, inlet tube 5 connects respectively clean water cavity 7 with the one end of first sampling pipe 9, be provided with force (forcing) pump 6 and sixth control valve 8 on the inlet tube 5, blow off pipe 13 is connected the one end of second sampling pipe 12, be provided with seventh control valve 21 on blow off pipe 13.
The water inlet pipe 5, the first sampling pipe 9, the second sampling pipe 12, the middle pipe 10 and the sewage discharge pipe 13 are all steel pipes.
The sewage discharge pipe 13 is connected with a sewage tank.
When the power plant feed water flow sampling pipeline detects the flow of feed water, the first control valve 1, the second control valve 2, the third control valve 3 and the fourth control valve 4 can be opened, the fifth control valve 11, the sixth control valve 8 and the seventh control valve 21 are closed, and the flow is detected through the flow differential pressure transmitter 15; after shutdown maintenance, impurities can enter the first sampling pipe 9 and the second sampling pipe 12 due to the fact that the feed water contains the impurities, at the moment, the first control valve 1, the second control valve 2, the third control valve 3 and the fourth control valve 4 can be closed, the fifth control valve 11, the sixth control valve 8 and the seventh control valve 21 are opened, the booster pump 6 is started, high-pressure water flow sequentially passes through the water inlet pipe 5, the first sampling pipe 9, the middle pipe 10, the second sampling pipe 12 and the sewage discharge pipe 13, the impurities in the water flow are washed, and the situation that the first sampling pipe 9 and the second sampling pipe 12 are blocked is avoided.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (3)
1. The utility model provides a power plant's feedwater flow sample pipeline, its characterized in that, includes supply line, long footpath nozzle, clean water cavity, inlet tube, first sampling pipe, second sampling pipe, well pipe, flow differential pressure transmitter and blow off pipe, the long footpath nozzle is located on the supply line, first sample connection and second sample connection have been drawn forth respectively to the both sides of long footpath nozzle, be provided with first sample entry and second sample entry on the flow differential pressure transmitter, the one end of first sampling pipe is connected first sample connection, the other end of first sampling pipe is connected first sample entry, the one end of second sampling pipe is connected second sample entry, the second sampling pipe is connected second sample entry, first sample entry is provided with first control valve, second sample entry is provided with the second control valve, first sample entry is provided with the third control valve, second sample entry is provided with well control valve, the sampling pipe connect in the other end of first sampling pipe with between the other end of second sampling pipe, be provided with the fifth control valve on the well pipe clean water cavity with the clean water cavity and the clean water inlet tube is provided with the first control valve on the second sampling pipe and the clean water cavity, the clean water cavity is provided with the first control valve and the second sample connection on the blow off pipe.
2. The power plant feedwater flow sampling pipeline of claim 1, wherein the water inlet pipe, the first sampling pipe, the second sampling pipe, the intermediate pipe and the sewage drain pipe are all steel pipes.
3. The power plant feed water flow sampling pipeline according to claim 1, wherein the sewage discharge pipe is connected with a sewage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221862275.2U CN218847315U (en) | 2022-07-20 | 2022-07-20 | Power plant feed water flow sampling pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221862275.2U CN218847315U (en) | 2022-07-20 | 2022-07-20 | Power plant feed water flow sampling pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218847315U true CN218847315U (en) | 2023-04-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221862275.2U Active CN218847315U (en) | 2022-07-20 | 2022-07-20 | Power plant feed water flow sampling pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218847315U (en) |
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2022
- 2022-07-20 CN CN202221862275.2U patent/CN218847315U/en active Active
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