Unlock instant, AI-driven research and patent intelligence for your innovation.

Two-stage vortex series connection intensified heating system and method for high-pressure low-temperature pilot-operated type pressure adjustment system

A high-pressure, low-temperature, pressure-regulating system technology, applied in pipeline systems, pipeline heating/cooling, pipes/pipe joints/fittings, etc., can solve the problems that restrict the large-scale promotion and application of eddy current tube heating technology, and the heating capacity cannot meet safety needs, etc. , to achieve the effect of convenient implementation, good general adaptation and low cost

Pending Publication Date: 2020-09-22
BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY +1
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, under high pressure and low temperature conditions, the heating capacity of the methods proposed in CN103383045A, CN103383046A and other patents may not meet the safety needs of actual projects, which seriously restricts the large-scale promotion and application of eddy current tube heating technology in long-distance natural gas pipeline pressure regulation systems

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
  • Two-stage vortex series connection intensified heating system and method for high-pressure low-temperature pilot-operated type pressure adjustment system
  • Two-stage vortex series connection intensified heating system and method for high-pressure low-temperature pilot-operated type pressure adjustment system
  • Two-stage vortex series connection intensified heating system and method for high-pressure low-temperature pilot-operated type pressure adjustment system

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0024] The two-stage eddy current series intensified heating system of the high-pressure and low-temperature pilot-operated pressure regulating system of the present invention, its preferred specific implementation mode is:

[0025] In the long-distance natural gas pipeline along the gas flow direction, the pressure gauge before pressure regulation upstream of the gas pipeline, the emergency cut-off valve, the pilot monitoring valve, the pressure gauge between the pilot monitoring valve and the pilot pressure regulating valve, and the pilot Pressure regulating valve and pressure gauge downstream of the gas pipeline after pressure regulation;

[0026] Lead out the inlet pipeline of the vortex heat mass separator between the emergency cut-off valve and the pilot-operated monitoring valve, and connect it to the inlet of the vortex heat mass separator through the control ball valve;

[0027] The cold air outlet pipeline of the vortex heat mass separator is connected to the downstr...

specific Embodiment

[0074] The pressure of Wudalianchi Station before pressure regulation is 8.3-10.9MPa, and the gas supply pressure to 4 distribution users including Wudalianchi China Gas, Wudalianchi China Resources, Beian China Resources and Keshan COSCO is 3.2MPa-4.0MPa, and the minimum outbound temperature without heating is -20 ℃, through the two-stage eddy current series intensified heating device of the high-pressure and low-temperature pilot-operated pressure regulating system of the present invention, the temperature of the pilot gas can reach above 25 ℃, and its composition is as follows figure 1 As shown, on the basis of the traditional skid-type pressure regulating device (emergency shut-off valve 2, pilot-operated monitoring valve 3, pilot-operated pressure regulating valve 5), the eddy current heat and mass separator 7, eddy current heater 14, temperature and pressure sensors are added , valves and connecting pipelines and other ancillary equipment. In this example, no changes are...

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 two-stage vortex series connection intensified heating system and method for a high-pressure low-temperature pilot-operated type pressure adjustment system. A pre-pressure-adjustment pressure gage, an emergency intercepting valve and a pilot-operated type monitoring valve are in sequential tandem connection to a natural gas long-distance pipeline in the flowing directionof gas, wherein the pre-pressure-adjustment pressure gage is located at the upstream of a gas pipeline. A pipeline is arranged between the emergency intercepting valve and the pilot-operated type monitoring valve and connected with an inlet of a vortex hot medium separator. A cool air outlet pipeline of the vortex hot medium separator is connected to the downstream of the gas pipeline. A hot air outlet pipeline is connected with a vortex heater. An outlet pipeline of the vortex heater is connected with the downstream of the gas pipeline. A pilot gas pre-heating pressure guiding pipeline is connected into a heat exchange channel of the vortex heater through the portion, between the emergency intercepting valve and the pilot-operated type monitoring valve, of the gas pipeline. A pilot gas after-heating pressure guiding pipeline is connected with a pilot-operated type monitoring valve director and a pilot-operated type pressure adjustment valve director. By means of series connection of two-stage vortex tubes, pilot gas in the pressure guiding pipelines of the pilot-operated type pressure adjustment system is heated in an intensified manner; the problem that the directors or the pressure guiding pipelines arranged behind the directors are subjected to ice blockage and failure is prevented; and the good general adaptability to different working conditions and environmental conditions is achieved.

Description

technical field [0001] The invention relates to a natural gas long-distance pipeline distribution and pressure regulation technology, in particular to a two-stage eddy current series enhanced heating system and method of a high-pressure and low-temperature pilot pressure regulation system. Background technique [0002] With the establishment of the oil and gas pipeline network company, the natural gas industry will usher in a new round of vigorous development. The distribution and pressure regulation system plays a key role in the construction and operation of the national natural gas infrastructure network of "trunk interconnection and regional network formation". effect. [0003] At present, in order to prevent the "ice blockage" of the pressure regulating device of the long-distance natural gas pipeline distribution system, external heat sources such as water jacket furnaces and electric heat tracing are usually used to heat the pilot gas of the pressure induction pipe, w...

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): F16L53/30F17D3/01F17D5/00
CPCF17D3/01F17D5/00
Inventor 王凯谢磊王海峰韩涛姚东
Owner BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY