CN211235068U

CN211235068U - Deaerator water level measuring point sampling device

Info

Publication number: CN211235068U
Application number: CN201921724758.4U
Authority: CN
Inventors: 朱勇基; 杨波; 田晓康; 何宝; 朱斌; 陈星�; 李红平
Original assignee: Datang Xinyang Electric Power Generation Co ltd
Current assignee: Datang Xinyang Electric Power Generation Co ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-08-11
Anticipated expiration: 2029-10-15

Abstract

The utility model discloses a deaerator water level measuring point sampling device, which comprises a condensation barrel, wherein the condensation barrel comprises a sampling port and a backflow port, and the backflow port is communicated with a liquid return port of the deaerator; the vapor side sampling tube comprises a horizontal tube section and a vertical tube section, and the horizontal height of the horizontal tube section is equal to that of a sampling port of the condensation barrel; one end of the vertical pipe section is communicated with a liquid outlet of the deaerator, the other end of the vertical pipe section is communicated with the horizontal pipe section, and one end of the horizontal section, which is far away from the vertical pipe section, is communicated with the sampling port; the water filling port, the water filling port set up in on the horizontal segment of vapour side sampling tube, its the water filling port is used for being linked together with external water source. Before the unit is started and after the unit is stopped, the condensing barrel is subjected to water filling and pollution discharge calibration, so that the situation of impurity deposition when the sampling device is frequently used is avoided, and the sampling measurement value of the sampling device is improved.

Description

Deaerator water level measuring point sampling device

Technical Field

The utility model relates to a generating set auxiliary component technical field especially relates to a deaerator water level measurement station sampling device.

Background

Since the 21 st century, the social economy of China is comprehensively developed, the demand for electric power is increasingly large, and the electric power development plays an important role in promoting the economic development of China. Through years of development and optimization, thermal power generation becomes an important power generation mode in China. In a thermal power plant, non-stop accidents of a unit frequently occur, wherein the abnormal fluctuation of a water level measuring point also has important hidden troubles for the safe operation of the unit. The deaerator is the important component of boiler water feeding, and the accuracy of deaerator water level measurement point has important referential meaning to the automatically regulated of water level, and in case adjust improper deaerator full water, operating personnel do not in time discover to do the analysis and processing, cause the steam turbine to intake very easily, cause the important influence to the safe operation of unit. The water level measuring point abnormity of the deaerator needs to be monitored in the water level measuring point abnormity testing process, the deaerator needs to be sampled, the existing sampling device can have impurity deposition when being frequently used, and the sampling measurement value precision is low.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to solve at least one of the above problems, and the object is achieved by the following technical solutions.

The utility model provides a deaerator water level measurement station sampling device, include:

the condensation barrel comprises a sampling port and a backflow port, and the backflow port is communicated with a liquid return port of the deaerator;

the vapor side sampling tube comprises a horizontal tube section and a vertical tube section, and the horizontal height of the horizontal tube section is equal to that of a sampling port of the condensation barrel; one end of the vertical pipe section is communicated with a liquid outlet of the deaerator, the other end of the vertical pipe section is communicated with the horizontal pipe section, and one end of the horizontal section, which is far away from the vertical pipe section, is communicated with the sampling port;

the water filling port, the water filling port set up in on the horizontal segment of vapour side sampling tube, its the water filling port is used for being linked together with external water source.

The utility model provides a deaerator water level sampling device, with the slope section sampling tube cancellation between vapour side sampling tube and the condensation bucket among the original technique, the condensation segment extension, and make the horizontal segment of condensation bucket top and vapour side sampling tube at same water flat line, avoid aquatic impurity to block up the slope section of sampling tube, install the water filling port additional simultaneously at condensation bucket top, so that before the unit starts and after shutting down to the condensation bucket blowdown calibration of watering, thereby avoided sampling device the situation of impurity deposition to appear when frequently using, and then improved sampling device's sample measurement value.

Furthermore, the number of the water injection ports is two, and the two water injection ports are arranged on the condensation barrel of the steam side sampling tube at intervals.

Further, still be provided with the second stop valve on the water filling port, the second stop valve is in normally closed state.

Further, a heat insulation layer is wrapped on the outer pipe wall of the steam side sampling pipe.

Furthermore, the horizontal pipe section of the steam side sampling pipe is of a telescopic pipe structure.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic structural view of a specific embodiment of the deaerator water level measuring point sampling device provided by the present invention.

Description of reference numerals:

1-condensation barrel 11-sampling port 12-return port

2-deaerator 21-liquid return port 22-liquid outlet

3-vapor side sampling tube 31-horizontal tube section 32-vertical tube section

4-first stop valve 5-second stop valve

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a specific embodiment of a deaerator water level measuring point sampling device provided in the present invention.

In a specific implementation mode, the water level measuring point sampling device of the deaerator provided by the utility model comprises a condensation barrel 1, a steam side sampling tube 3 and a water injection port, wherein the condensation barrel 1 is of a cylindrical tubular structure, the condensation barrel 1 comprises a sampling port 11 and a return port 12, and the return port 12 is communicated with a liquid return port 21 of the deaerator 2 through a pipeline; the vapor side sampling tube 3 comprises a horizontal tube section 31 and a vertical tube section 32, the horizontal height of the horizontal tube section 31 is equal to that of the sampling port 11 of the condensation barrel 1, and the horizontal tube section 31 and the sampling port 11 of the condensation barrel 1 are positioned on the same horizontal plane, so that the problem of blockage of an inclined pipeline caused by the arrangement of the inclined pipeline is avoided; one end of the vertical pipe section 32 is communicated with the liquid outlet 22 of the deaerator 2, the other end of the vertical pipe section is communicated with the horizontal pipe section 31, and one end of the horizontal section, far away from the vertical pipe section 32, is communicated with the sampling port 11; the water filling port set up in on the horizontal pipe section 31 of vapour side sampling tube 3, its the water filling port is used for being linked together with external water source to realize the pipeline through connecting the water source and wash.

In order to realize the pipeline flushing efficiency, a plurality of water injection ports can be arranged, and in actual use, the number of the water injection ports is two, and the two water injection ports are arranged on the condensation barrel 1 of the steam side sampling tube 3 at intervals.

Can also be provided with second stop valve 5 on each water filling port, second stop valve 5 is in the normally closed state, also is that under the device normal use state, second stop valve 5 closes, when the pipeline is washed to needs irritate water, second stop valve 5 opens and communicates with the water source. The second shut-off valve 5 may be embodied as a manual on-off valve or an electric on-off valve.

The outer pipe wall of the steam side sampling pipe 3 can be further provided with a heat insulation layer in a wrapping mode, so that the influence of external high temperature or low temperature on liquid in the sampling pipe is avoided, and the measurement precision is further improved.

In the use, the distance between oxygen-eliminating device 2 and condensing barrel 1 may be different, in order to enlarge the application scope of the device, horizontal pipe section 31 of steam side sampling pipe 3 is the telescopic pipe structure.

As shown in fig. 1, the first stop valve 4 is a primary sampling valve and a secondary sampling valve of a steam side sampling pipeline of the deaerator water level measuring device, and when the unit normally operates, the first stop valve 4 is kept fully opened, and a steam side medium is introduced into a condensation barrel for condensation to form a reference liquid column. When the steam side sampling device is abnormal and needs to be overhauled, the first stop valve 4 can be closed to isolate the high-pressure medium, the steam side sampling pipeline is isolated, and the steam side sampling device is convenient to overhaul.

The second stop valve 5 is the primary door and the secondary door of watering on the condensation bucket, and the second stop valve 5 keeps totally closing during normal operation of unit, before the unit starts and after the outage, need to water vapour side sample line and condensation bucket blowdown, irrigates water vapour side sample line and condensation bucket through second stop valve 5 promptly and the primary door of watering and secondary door after the blowdown, forms the reference liquid column fast.

In the above-mentioned embodiment, the utility model provides a 2 water level sampling device of oxygen-eliminating device, with the slope section sampling tube cancellation between steam side sampling tube 3 and the condensation bucket 1 in the original technique, the condensation section extension, and make the horizontal pipe section 31 of 1 top of condensation bucket and steam side sampling tube 3 at same water flat line, avoid the slope section of aquatic impurity jam sampling tube, install the water filling port additional at 1 top of condensation bucket simultaneously, so that before the unit starts and after shutting down to 1 blowdown calibration of watering of condensation bucket, thereby avoided sampling device the situation of impurity deposit to appear when frequently using, and then improved sampling device's sample measurement value.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a deaerator water level measurement station sampling device which characterized in that includes:

the condenser barrel (1), the condenser barrel (1) comprises a sampling port (11) and a return port (12), and the return port (12) is communicated with a liquid return port (21) of the deaerator (2);

the vapor side sampling tube (3), the vapor side sampling tube (3) comprises a horizontal tube section (31) and a vertical tube section (32), and the horizontal height of the horizontal tube section (31) is equal to the horizontal height of the sampling port (11) of the condensation barrel (1); one end of the vertical pipe section (32) is communicated with a liquid outlet (22) of the deaerator (2), the other end of the vertical pipe section is communicated with the horizontal pipe section (31), and one end of the horizontal pipe section, which is far away from the vertical pipe section (32), is communicated with the sampling port (11);

the water filling port, the water filling port set up in on horizontal pipe section (31) of vapour side sampling tube (3), its the water filling port is used for being linked together with external water source.

2. The deaerator water level measuring point sampling device of claim 1, wherein the number of the water filling ports is two, and the two water filling ports are arranged on the condensation barrel (1) of the steam side sampling pipe (3) at intervals.

3. The deaerator water level measuring point sampling device as claimed in claim 2, wherein a second stop valve (5) is further arranged on the water filling port, and the second stop valve (5) is in a normally closed state.

4. The deaerator water level measuring point sampling device of any one of claims 1-3, wherein the outer pipe wall of the steam side sampling pipe (3) is wrapped with a heat insulation layer.

5. The deaerator water level measuring point sampling device of any one of claims 1-3, wherein the horizontal pipe section (31) of the steam side sampling pipe (3) is of a telescopic pipe structure.