Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Plug-in type differential pressure flowmeter and flow measurement method

A technology of differential pressure flowmeter and flowmeter, which is applied in the direction of detecting fluid flow by measuring pressure difference and volume/mass flow generated by mechanical effects, and can solve the problems of differential pressure flowmeter measurement errors, condensation or coagulation, errors, etc. , to achieve the effect of reducing measurement errors and errors

Pending Publication Date: 2019-04-05
飞思仪表(深圳)有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention is that when the temperature of the external testing environment is lower than the temperature of the fluid to be tested in the pipeline, the fluid to be tested is likely to condense or solidify in the pressure guiding device of the plug-in differential pressure flowmeter, thereby causing poor Technical problems of pressure flowmeters producing measurement errors or errors

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Plug-in type differential pressure flowmeter and flow measurement method
  • Plug-in type differential pressure flowmeter and flow measurement method
  • Plug-in type differential pressure flowmeter and flow measurement method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 As shown, it is a schematic structural diagram of an insertion type differential pressure flowmeter in an embodiment, including a pressure taking device 40 , a pressure guiding device 30 , a differential pressure transmitter 20 and a flow calculator 10 connected in sequence. The pressure measuring device 40 is provided with a pressure measuring hole, which is used to obtain high pressure and low pressure related to the flow rate of the measured fluid in the pipeline filled with the measured fluid. The pressure guiding device 30 is used to transmit high pressure and low pressure to the differential pressure transmitter 20, and the conduction state of the pressure guiding device 30 is controlled by the relationship between the temperature of the pressure guiding device and the temperature of the fluid to be measured. The differential pressure transmitter 20 is used to obtain differential pressure signals according to high pressure and low pressure, and co...

Embodiment 2

[0040] Such as Figure 8 As shown, it is a flow chart of the flow measurement method of the plug-in differential pressure flowmeter in another embodiment. The application also discloses a flow measurement method of an insertion type differential pressure flowmeter, including:

[0041] Step 1, monitoring the temperature of the pressure guiding device of the flowmeter and the temperature of the measured fluid;

[0042] The temperature sensor of the flowmeter measures the temperature of the pressure guiding device and sends the measurement result to the controller. The temperature sensor of the flow meter also measures the temperature of the fluid being measured and sends the measurement to the controller.

[0043] Step 2, comparing the temperature of the pressure guiding device with the temperature of the measured fluid to obtain a comparison result;

[0044] The controller compares the temperature of the pressure guiding device obtained by the temperature sensor with the tem...

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

No PUM Login to View More

Abstract

The invention discloses a plug-in type differential pressure flowmeter and a flow measurement method. The plug-in type differential pressure flowmeter comprises a pressure collection device, a pressure guide device, a differential pressure transmitter and a flow calculation instrument, wherein the pressure collection device, the pressure guide device, the differential pressure transmitter and theflow calculation instrument are connected in sequence. The on-state of the pressure guide device is controlled by the relationship between the temperature of the pressure guide device and the temperature of fluid to be measured, the temperature of the fluid to be measured is not larger than the temperature of a pressure guide channel in the pressure guide device when the flowmeter is used is ensured, so that condensation or solidification phenomenon of the fluid to be measured in the pressure guide device of the plug-in differential pressure flowmeter is avoided, and the measurement mistake and error of the differential pressure flowmeter are further reduced.

Description

technical field [0001] The invention belongs to the technical field of flow measurement, and in particular relates to an insertion type differential pressure flowmeter. Background technique [0002] A differential pressure flowmeter is an instrument that measures flow based on the differential pressure generated by the flow detection device installed in the pipeline, known fluid conditions, and the geometric dimensions of the detection device and the pipeline. The differential pressure flowmeter consists of a primary device (detection piece) and a secondary device (differential pressure conversion and flow display instrument). Differential pressure flowmeters are usually classified by the type of detection parts, such as orifice plate flowmeters, Venturi tube flowmeters, and uniform velocity tube flowmeters. The secondary installation is a variety of mechanical, electronic, and electromechanical integrated differential pressure gauges, differential pressure transmitters, an...

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
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/50
CPCG01F1/50
Inventor 陈行柱黄瑞奇
Owner 飞思仪表(深圳)有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com