Plug type differential pressure measuring device
A measuring device and plug-in technology, which can be used to detect fluid flow by measuring differential pressure, volume/mass flow generated by mechanical effects, etc., which can solve the problems of inconvenient installation and transportation, narrow range, large volume, etc. , The effect of small fluid pressure loss and high measurement accuracy
Inactive Publication Date: 2008-01-09
姚贤卿
View PDF0 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The full-pipe conical differential pressure flowmeter is large in size, heavy in weight, expensive, and has a large pressure loss, especially for large-diameter flowmeters, which brings great inconvenience to installation and transportation, and high overall costs, such as measuring sticky dirt In case of clogging or fouling of the cone, production can only be stopped for maintenance, and the application cost and economic loss caused by production stoppage are relatively large.
At present, there are also plug-in vortex flowmeters in the market, which are afraid of vibration interference, high temperature, sticky dirt, poor accuracy, and narrow range.
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 Construction
[0013] It can be seen from Figures 1 and 2 that a plug-in differential pressure measuring device is provided with a cone 3 and pressure introduction pipes 2 and 6, the cone 3 is a throttling element, and the fluid forms a pressure difference between its upstream and downstream . The upstream pressure of the cone 3 is PH, the downstream pressure is PL, and the differential pressure is ΔP, ΔP=PH-PL. According to Bernoulli's theorem, the differential pressure is ΔP, then its flow Q = K · ϵ · ΔP / ρ (Note: where Q is the volume flow rate, ρ is the density of the fluid working condition, ε is the expansion coefficient of the medium, and K is the instrument coefficient). In this way, the flow rate of the fluid in the pipeline 7 can be accurately measured. In Fig. 2, the orientation mark 9 is used to adjust the installation and insertion direction of the present i...
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
Login to View More Abstract
The invention relates to a plug-in differential pressure measurement device, which installs the cone throttle component and pressure leading tube, the cone flying in the circular casing through the bracket, the upper pressure getting mouth of the pressure leading tube is located on the corresponding circular casing of the cone, the downstream pressure getting mouth is located in the low pressure of the cone heel in circular casing, the dual pressure leading tubes separately plug in the corresponding pressure leading tube and connect. The invention has simple structure, small size, simple installation and construction, high accuracy, wide applicability, wide range, good anti-vibration performance, wear resistance, high temperature resistance, particularly small loss of fluid pressure, obvious energy-saving effect, is an ideal measuring device of measuring the tube inside fluid flux. It is applied to install in various diameter pipeline to measure the flux of the various media.
Description
technical field [0001] The invention relates to a measuring device for fluid flow in a pipeline, in particular to a plug-in differential pressure measuring device. Background technique [0002] We know that in the past nearly a hundred years, differential pressure flowmeters have been successfully used in various flow medium fields all over the world in terms of process control and flow measurement. The earliest differential pressure measurement device was produced in the 1840s after Bernoulli's theorem was proposed, and the flow nozzle, Venturi tube and orifice plate that were marketed in the world were produced by using this principle. Traditional differential pressure flowmeters are throttling around the pipe wall, and the fluid flows through the center of the pipe. Until the 1980s, the Americans proposed a new throttling method, using the cone as the throttling element, which is suspended in the fluid pipe, and the fluid flows along the pipe wall after being compressed ...
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 Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/40G01F1/34
Inventor 姚贤卿
Owner 姚贤卿