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Connected vessels type steam pocket water level sampling and measuring device and method for deciding its geometric size

A technology for measuring device and drum water level, which is applied in the components of steam boilers, steam boilers, steam generation, etc., can solve problems such as affecting the popularization and application of new products, increasing the number of structural pipes, increasing the difficulty of operation and maintenance and fault diagnosis, etc.

Active Publication Date: 2010-01-13
高维信
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In the technical improvement of the traditional connector-type measuring device, some technologies excessively pursue high-precision sampling, such as installing a steam heating device inside the device in order to eliminate sampling errors, resulting in excessive accuracy margins. The cost is: the measuring device The structure is complicated, the sampling pipeline system needs to install a steam-heated drainage pipeline, and it is necessary to open a hole on the downcomer with a thick wall to install the drainpipe, which undoubtedly increases the cost of the measuring device and the installation workload; the structure is complex and The increase of pipelines increases the difficulty of operation, maintenance and fault diagnosis
These factors affect the promotion and application of new products to a certain extent
[0010] Veterans in the boiler and thermal industry believe that it is necessary to develop a new connector-type measuring device. The structure of the sampling device and the sampling pipeline system are still very simple, and the installation and maintenance are still the most convenient, but the sampling accuracy can still reach that of the steam drum. Water level safety monitoring and equipment security requirements, in line with relevant national technical standards

Method used

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  • Connected vessels type steam pocket water level sampling and measuring device and method for deciding its geometric size
  • Connected vessels type steam pocket water level sampling and measuring device and method for deciding its geometric size
  • Connected vessels type steam pocket water level sampling and measuring device and method for deciding its geometric size

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0066] This example is attached figure 2 , the specific measuring device is an electric contact measuring cylinder. The additional steam chamber cylinder body 9 with horn constriction is welded to the extension section above the metering section cylinder body 8 , and the extension section has a steam communication pipe 3 . An electric contact electrode assembly 7 is installed on the cylinder body 8 of the metering section, a water connecting pipe 4 is provided at the bottom of the cylinder body 8 of the metering section, and a sewage discharge pipe 6 is provided at the bottom of the airtight container 5 .

no. 2 example

[0068] This example is attached image 3 , the specific measuring device is a magnetic float measuring cylinder. In this embodiment, the additional steam chamber cylinder 9 is welded to the extension section above the metering section cylinder 8 , and the metering section cylinder 8 has a steam sampling connecting pipe 3 and a water connecting pipe 4 above and below. There is a hollow cylindrical magnetic float 10 inside the cylinder body 8 of the metering section, which can float on the top of the water column, and the center of gravity of the magnetic float is at the bottom. A plurality of magnetic flaps 11 are installed outside the cylinder body 8 of the metering section, and the magnetic flaps can automatically turn over 180° when the magnetic float approaches to mark and display the water level. The extension section of the cylinder body 8 of the metering section is connected to the flange assembly 12, and the assembly can be disassembled to take out the magnetic float. ...

no. 3 example

[0070] This example is attached Figure 4 , the specific measuring device is a capacitive measuring cylinder. The feature of the additional steam chamber cylinder body 9 in the present embodiment is the combined cylinder body of two steam chambers, and this combination is the extension section that the two steam chamber cylinder bodies are connected in parallel to the metering section cylinder body 8 by the pipeline, so, The surface area of ​​the cylinder body of the additional steam chamber is the sum of the surface areas of the parts above the cylinder body 8 of the metering section. There are steam sampling connecting pipes 3 and water connecting pipes 4 on the top and bottom of the metering section cylinder body 8 . A flange 14 is welded on the top of the extension section above the cylinder body 8 of the metering section, and is connected with a flange capacitor assembly 15 . The insulated capacitor rod 13 in the flange capacitor assembly 15 is inserted into the cylinde...

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Abstract

The present invention discloses a communicating type drum water-level sampling and measuring device and physical dimension determination method of said device. It includes steam communicating pipe, water communicating pipe, measuring barrel and blowdown flushing pipe. The closed measuring barrel interior includes a metering section on which a water-level detection sensing device is mounted, and the upper portion and lower portion of said metering section are respectively communicated with steam measuring hole connecting pipe and water measuring hole connecting pipe by means of steam communicating pipe and water communicating pipe, the blowdown flushing pipe is set in the lower portion of measuring barrel, and over the measuring barrel an additional steam chamber for conveying condensate into measuring section is set.

Description

Technical field: [0001] The present invention relates to the technical field of thermal measurement, in particular to high-pressure, ultra-high pressure, and subcritical boiler steam drum water level measurement technology, in particular to a connecting device type steam drum water level sampling and measurement device, and the invention also provides the geometric dimension determination of the device method. Background technique: [0002] The drum water level gauge is an important safety accessory of the boiler. At present, there are only two types of measuring devices, the connector type and the differential pressure type, configured in the steam drum water level measurement system. [0003] There are roughly 4 types of connector measuring devices in use: mica water level gauge, electric contact water level gauge, magnetic flap water level gauge, and capacitance water level gauge. Such as figure 1 As shown, the main structure of these kinds of water level gauges is a s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F22B37/78
Inventor 高维信
Owner 高维信
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