CN209431384U - A kind of main vapour overpressure protection apparatus of power plant boiler - Google Patents
A kind of main vapour overpressure protection apparatus of power plant boiler Download PDFInfo
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- CN209431384U CN209431384U CN201821496119.2U CN201821496119U CN209431384U CN 209431384 U CN209431384 U CN 209431384U CN 201821496119 U CN201821496119 U CN 201821496119U CN 209431384 U CN209431384 U CN 209431384U
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- pressure
- boiler
- dcs controller
- power plant
- valve
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Abstract
The utility model provides a kind of main vapour overpressure protection apparatus of power plant boiler; including 3 pressure transmitters, DCS controller, relief valve; the pressure transmitter is arranged in Boiler Steam exit; detect boiler export steam pressure; the output end of pressure transmitter is connect with DCS controller input terminal; the relief valve is arranged at boiler export, connect with DCS controller, adjusts pressure release valve opening using DCS controller.The utility model is in the way of three pressure transmitter two from three, boiler two sides outlet vapor pressure is measured with two pressure transmitters, in dcs after logic judgment operation output valve action command, the high problem of malfunction rate is fundamentally prevented, the reliability and accuracy for ensuring pressure release valve events, can effectively solve economic loss caused by valve malfunction.
Description
Technical field
The utility model belongs to boiler plant technical field, and in particular to a kind of main vapour overpressure protection dress of power plant boiler
It sets.
Background technique
Existing boiler safety gas bleeder valve (abbreviation Pcv valve) is using the integrated system of DRESSER company, the U.S., control
Feature processed is to monitor boiler export steam pressure, movable valve in parallel using pressure switch, while being provided with an Operation switch,
Valve can be opened manually, which is pure hard circuit control.Thermal power plant's usage history is long at home for the system, and range is wide, is one
It is a than more typical Pcv valve control system, it is in the field of business to have biggish degree of recognition.
But the system is in actual operation, occurs multiple nonaction successively, causes a large amount of economic loss, also gives
The stable operation of unit causes very big influence.
Summary of the invention
The utility model provides a kind of main vapour overpressure protection apparatus of power plant boiler, can effectively improve the correct of protection act
Property and accuracy, can effectively solve economic loss caused by valve malfunction.
The technical solution of the utility model is: a kind of main vapour overpressure protection apparatus of power plant boiler, including 3 pressure invertings
Device, DCS controller, relief valve, the pressure transmitter setting detect boiler export steam pressure in Boiler Steam exit,
The output end of pressure transmitter is connect with DCS controller input terminal, and the relief valve is arranged at boiler export, is controlled with DCS
Device connection adjusts pressure release valve opening using DCS controller.
Further, 3 pressure transmitters are connected scheme using the logical relation of two from three.
The utility model has the advantages that: the utility model is in the way of three pressure transmitter two from three, with two pressure
Transmitter measures boiler two sides outlet vapor pressure, in dcs after logic judgment operation output valve movement
Instruction, has fundamentally prevented the high problem of malfunction rate, it is ensured that the reliability and accuracy of pressure release valve events.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Wherein: 1, boiler, 2, pressure transmitter, 3, DCS controller, 4, relief valve.
Specific embodiment
Clear and complete description is done to the utility model with reference to the accompanying drawing, so that those skilled in the art is not needing
Under conditions of making creative work, it can sufficiently implement the utility model.
Specific embodiment of the present utility model is: as shown in Figure 1, a kind of main vapour overpressure protection apparatus of power plant boiler,
Including the use of 3 pressure transmitters 2, DCS controller 3, relief valve 4 that the logical relation of two from three connects, the pressure inverting
The setting of device 2 detects 1 outlet vapor pressure of boiler, the output end and DCS controller of pressure transmitter 2 in 1 steam outlet of boiler
The connection of 3 input terminals, the relief valve 4 are arranged in 1 exit of boiler, connect with DCS controller 3, are adjusted using DCS controller 3
4 aperture of relief valve.
The preferred embodiment of the utility model is described above, it should be pointed out that the utility model not office
It is limited to above-mentioned particular implementation, devices and structures not described in detail herein should be understood as with the common side in this field
Formula is practiced；Anyone skilled in the art, in the case where not departing from technical solutions of the utility model ambit, foundation
The technical essence of the utility model any simple modifications, equivalents, and modifications made to the above embodiment still fall within this
In the range of the protection of utility model technical solution.
Claims (2)
1. a kind of main vapour overpressure protection apparatus of power plant boiler, which is characterized in that including 3 pressure transmitters, DCS controller,
Relief valve, pressure transmitter setting detect boiler export steam pressure in Boiler Steam exit, pressure transmitter it is defeated
Outlet is connect with DCS controller input terminal, and the relief valve is arranged at boiler export, is connect with DCS controller, is utilized DCS
Controller adjusts pressure release valve opening.
2. the main vapour overpressure protection apparatus of a kind of power plant boiler according to claim 1, which is characterized in that 3 pressures
Power transmitter is connected using the logical relation of two from three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821496119.2U CN209431384U (en) | 2018-09-13 | 2018-09-13 | A kind of main vapour overpressure protection apparatus of power plant boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821496119.2U CN209431384U (en) | 2018-09-13 | 2018-09-13 | A kind of main vapour overpressure protection apparatus of power plant boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209431384U true CN209431384U (en) | 2019-09-24 |
Family
ID=68006952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821496119.2U Active CN209431384U (en) | 2018-09-13 | 2018-09-13 | A kind of main vapour overpressure protection apparatus of power plant boiler |
Country Status (1)
| Country | Link |
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| CN (1) | CN209431384U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112082142A (en) * | 2020-08-19 | 2020-12-15 | 江苏未来智慧信息科技有限公司 | Boiler intelligent coordination system and method for coal-fired unit of power plant |
| CN112160898A (en) * | 2020-09-11 | 2021-01-01 | 西安新丝路能源科技有限公司 | Monitoring control device for safe operation of circulating water pump of thermal power plant |
| CN112343553A (en) * | 2020-10-28 | 2021-02-09 | 中海石油(中国)有限公司 | Offshore thick oil steam injection overpressure protection system |
| CN115167289A (en) * | 2021-04-01 | 2022-10-11 | 中核核电运行管理有限公司 | Method for removing single-point sensitive component by adding transmitter in nuclear power plant |
-
2018
- 2018-09-13 CN CN201821496119.2U patent/CN209431384U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112082142A (en) * | 2020-08-19 | 2020-12-15 | 江苏未来智慧信息科技有限公司 | Boiler intelligent coordination system and method for coal-fired unit of power plant |
| CN112160898A (en) * | 2020-09-11 | 2021-01-01 | 西安新丝路能源科技有限公司 | Monitoring control device for safe operation of circulating water pump of thermal power plant |
| CN112343553A (en) * | 2020-10-28 | 2021-02-09 | 中海石油(中国)有限公司 | Offshore thick oil steam injection overpressure protection system |
| CN112343553B (en) * | 2020-10-28 | 2022-09-02 | 中海石油(中国)有限公司 | Offshore thick oil steam injection overpressure protection system |
| CN115167289A (en) * | 2021-04-01 | 2022-10-11 | 中核核电运行管理有限公司 | Method for removing single-point sensitive component by adding transmitter in nuclear power plant |
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