Visualized three-section natural circulation working segment
A natural circulation, working section technology, applied in chemical instruments and methods, heating or cooling equipment, laboratory utensils, etc., can solve problems such as reduced sealing performance, reduced working pressure, and fewer experimental phenomena, to achieve enhanced sealing performance, easy to use. The effect of reducing the requirements for processing and assembly and sealing
Inactive Publication Date: 2013-04-17
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
View PDF5 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] However, some formation mechanisms of natural circulation have not yet been fully understood. Therefore, it is necessary to establish a natural circulation experiment platform and explore more formation mechanisms of natural circulation through experiments.
However, most of the working sections of the current experimental bench are not visible, and the phenomena in the experimental process cannot be observed intuitively. A small number of visible working sections are single-segment, and most of them can only The small holes on the section observe the phenomena that occur in the working section, resulting in few experimental phenomena that can be observed, which are not enough to fully explain some mechanisms in the natural circulation process
[0007] Most of the natural circulation working sections have undergone repeated experiments for many times, or if they are used in engineering for too long, the working pressure will gradually decrease and the sealing performance will gradually decrease, which will have an unpredictable impact on the test results and the safety of the staff.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0025] A visualized three-stage natural circulation working section. The visualization part of the working section is divided into three sections. In the channel of the three-stage natural circulation working section, one surface is a stainless steel heating backplane, and the other three surfaces are high-temperature-resistant transparent quartz glass .
[0026] The working section is placed vertically in the system. The lower end of the working section is connected to the preheating section, and the upper end of the working section is connected to the condenser. After the working medium water enters the heating section from the inlet at the lower end, it flows out of the heating section from the upper port after passing through the observation of the heating section.
[0027] The inside of the working section can be processed into various channels; during the working process, a high-speed camera is used to record and visualize the flow phenomenon in the working section.
[0...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| Length | aaaaa | aaaaa |
| Length | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a visualized three-section natural circulation working segment, which belongs to the technical fields of mechanical equipment and nuclear electric power generation. The visualized part of the working segment is divided into three sections; and one surface in the passageway of the three-section natural circulation working segment is a stainless steel heating backplane, while the other three surfaces are all heat resisting transparent quartz glass. The visualized three-section natural circulation working segment provided by the invention has the advantages that the working segment is easy to machine and assemble; the range of application is wide; a three-section visual window is adopted, so that the range of observation is wide, and sealing is easier to realize, while the sealing performance is better; in addition, the sealing requirements are lowered, and the sealing performance is improved, so that the working segment can be machined into various passageways more conveniently.
Description
technical field [0001] The invention belongs to the field of mechanical equipment and nuclear power generation, and specifically relates to a visualized three-stage natural circulation working section, which can observe and record the phenomena in the channel during operation through the transparent working section, so as to intuitively grasp the flow status in the channel . It can run for a long time under certain working conditions, which is beneficial to the research and application of mechanical equipment manufacturing and thermal hydraulics. Background technique [0002] Natural circulation refers to the circulating flow of fluid caused by the density gradient inside the fluid, and the density gradient is usually caused by the temperature field of the fluid itself, so its movement intensity also depends on the size of the temperature gradient. [0003] Natural circulation is widely used in industry. The principle of natural circulation is widely used in boilers of ther...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): B01L9/02B01L7/00
Inventor 周涛琚忠云林达平刘亮李云博宋明强杨旭
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)