CN203231789U - Liquid level measuring device for low-pressure heater of thermal power generating unit - Google Patents
Liquid level measuring device for low-pressure heater of thermal power generating unit Download PDFInfo
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- CN203231789U CN203231789U CN 201320294854 CN201320294854U CN203231789U CN 203231789 U CN203231789 U CN 203231789U CN 201320294854 CN201320294854 CN 201320294854 CN 201320294854 U CN201320294854 U CN 201320294854U CN 203231789 U CN203231789 U CN 203231789U
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- liquid level
- pressure heater
- low
- valve
- way valve
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Abstract
The utility model discloses a liquid level measuring device for a low-pressure heater of a thermal power generating unit, which comprises the following components: the low-pressure heater, a magnetic flap liquid level meter and a guided wave radar liquid level meter. An upper sampling tube and a lower sampling tube of the magnetic flap liquid level meter are respectively connected with the first ports of an upper three-way valve and a lower three-way valve. A steam part and a liquid water part of the low-pressure heater are respectively connected with the second ports of the upper three-way valve and the lower three-way valve through an upper guiding pipe and a lower guiding pipe. The upper guiding pipe and the lower guiding pipe are respectively provided with a switch valve. The guided wave radar liquid level meter is arranged in a vertically arranged vertical pipe. The upper part and the lower part of the vertical pipe are respectively provided with an upper transverse pipe and a lower transverse pipe which are respectively connected with the third ports of the upper three-way valve and the lower three-way valve. The liquid level measuring device with the structure in which the guided wave radar liquid level meter is adopted for measuring has the following advantages: realizing accurate measurement for the liquid level of the low-pressure heater, reducing maintenance cost, and improving thermal economical performance of the low-pressure heater.
Description
Technical field
The utility model relates to liquid level emasuring device, is specifically related to thermal power generation unit low-pressure heater liquid level emasuring device.
Background technology
At present, thermal power generation unit low-pressure heater is general to adopt two chamber equalizing reservoirs and common cooperation of differential pressure transmitter to carry out level gauging, but low-pressure heater is under the vacuum environment, the level gauging starting characteristic is poor, and measurement result also is subjected to environmental impact easily, thereby causes the accuracy of measurement result relatively poor.
Simultaneously; above-mentioned these problems can cause the automatic devoting rate of thermal power generation unit low-pressure heater low; the water level protection frequent movement; and the hydrophobic certain aperture of the maintenance accident of having to; move in the water level lower bound to keep low-pressure heater; thereby cause high-temperature steam to walk short circuit and return condenser without hydrophobic cooling section, cause thermal power generation unit hear rate to increase.
The utility model content
Technical problem to be solved in the utility model is to solve the inaccurate problem of thermal power generation unit low-pressure heater level gauging, can guarantee the normal operation of low-pressure heater draining system again.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts provides a kind of thermal power generation unit low-pressure heater liquid level emasuring device, comprise low-pressure heater, magnetic turnover panel liquid level gauge and guided wave radar liquid level gauge, on the described magnetic turnover panel liquid level gauge, following stopple coupon connects respectively, first port of following T-valve, described low-pressure heater steam position and aqueous water position are respectively by last, downcomer be connected described on, on second port of following T-valve, on described, be respectively equipped with a switch valve on the downcomer, described guided wave radar liquid level gauge is arranged in the standpipe of vertically placing, on the described standpipe, the bottom is respectively equipped with, lower transverse tubule, described on, lower transverse tubule be connected to described on, on following T-valve the 3rd port.
In such scheme, described upper and lower T-valve is manual three-way valve or electric T-shaped valve.
The utility model, the structure that adopts the guided wave radar liquid level gauge to measure, realized the accurate measurement of low-pressure heater liquid level, reduced maintenance cost, improved the heat-economy of low-pressure heater, in addition, avoided artificial adjustment untimely, cause low-pressure heater water level full water out of control, thereby cause the generation of the serious accident of turbine water induction, simultaneously, near normal water level, avoided stream-liquid two-phase flow to wash away the hydrophobic and normal hydrophobic valve of accident, pipeline, the security that has improved equipment owing to realize the control of low-pressure heater water level.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is made detailed explanation.
As shown in Figure 1, the utility model provides a kind of thermal power generation unit low-pressure heater liquid level emasuring device, comprises low-pressure heater 1, magnetic turnover panel liquid level gauge 3 and guided wave radar liquid level gauge 2.
The upper and lower stopple coupon of magnetic turnover panel liquid level gauge 3 connects first port of upper and lower T-valve 4 respectively, low-pressure heater 1 steam position and aqueous water position are connected on second port of upper and lower T-valve 4 by upper and lower conduit respectively, be respectively equipped with a switch valve 5 on the upper and lower conduit, guided wave radar liquid level gauge 2 is arranged in the standpipe of vertically placing, the upper and lower part of standpipe is provided with upper and lower transverse tube respectively, and upper and lower transverse tube is connected on upper and lower T-valve 4 the 3rd port.Like this, connect by pipeline, guided wave radar liquid level gauge 2 can directly be measured the dynamic water table in the low-pressure heater 1.When needs are safeguarded thermal power generation unit low-pressure heater liquid level emasuring device entire equipment or overhauled, can realize by closing switch valve 5.
In this case, upper and lower T-valve 4 is manual three-way valve or electric T-shaped valve.
The utility model, the structure that adopts the guided wave radar liquid level gauge to measure, realized the accurate measurement of low-pressure heater liquid level, reduced maintenance cost, improved the heat-economy of low-pressure heater, in addition, avoided artificial adjustment untimely, cause low-pressure heater water level full water out of control, thereby cause the generation of the serious accident of turbine water induction, near normal water level, avoided stream-liquid two-phase flow to wash away the hydrophobic and normal hydrophobic valve of accident, pipeline, the security that has improved equipment owing to realize the control of low-pressure heater water level simultaneously.
The utility model is not limited to above-mentioned preferred forms, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or close technical scheme, all fall within the protection domain of the present utility model.
Claims (2)
1. thermal power generation unit low-pressure heater liquid level emasuring device, comprise low-pressure heater, magnetic turnover panel liquid level gauge and guided wave radar liquid level gauge, it is characterized in that, on the described magnetic turnover panel liquid level gauge, following stopple coupon connects respectively, first port of following T-valve, described low-pressure heater steam position and aqueous water position are respectively by last, downcomer be connected described on, on second port of following T-valve, on described, be respectively equipped with a switch valve on the downcomer, described guided wave radar liquid level gauge is arranged in the standpipe of vertically placing, on the described standpipe, the bottom is respectively equipped with, lower transverse tubule, described on, lower transverse tubule be connected to described on, on following T-valve the 3rd port.
2. thermal power generation unit low-pressure heater liquid level emasuring device as claimed in claim 1 is characterized in that described upper and lower T-valve is manual three-way valve or electric T-shaped valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320294854 CN203231789U (en) | 2013-05-27 | 2013-05-27 | Liquid level measuring device for low-pressure heater of thermal power generating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320294854 CN203231789U (en) | 2013-05-27 | 2013-05-27 | Liquid level measuring device for low-pressure heater of thermal power generating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203231789U true CN203231789U (en) | 2013-10-09 |
Family
ID=49287909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320294854 Expired - Fee Related CN203231789U (en) | 2013-05-27 | 2013-05-27 | Liquid level measuring device for low-pressure heater of thermal power generating unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203231789U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136234A (en) * | 2015-05-05 | 2015-12-09 | 中国能源建设集团广东省电力设计研究院有限公司 | Fault detection apparatus for water level detector of heater |
-
2013
- 2013-05-27 CN CN 201320294854 patent/CN203231789U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136234A (en) * | 2015-05-05 | 2015-12-09 | 中国能源建设集团广东省电力设计研究院有限公司 | Fault detection apparatus for water level detector of heater |
| CN105136234B (en) * | 2015-05-05 | 2018-03-16 | 中国能源建设集团广东省电力设计研究院有限公司 | The failure detector of heater water level detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 Termination date: 20140527 |