Check patentability & draft patents in minutes with Patsnap Eureka AI!

Process for preventing material in storage tank from crystallizing by utilizing thermosyphon principle

A thermosiphon, material technology, applied in the direction of tank cars, transport passenger cars, railway car body parts, etc., can solve the problems of easy explosion, lubricating oil mixed into materials, etc., to prevent the crystallization of materials

Pending Publication Date: 2020-04-14
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is lubricating oil on the transmission device of the agitator, and there is a risk of the lubricating oil being mixed into the material. Some materials are absolutely prohibited from oil, such as ammonium nitrate, which is very easy to explode after being mixed with oil.

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
  • Process for preventing material in storage tank from crystallizing by utilizing thermosyphon principle
  • Process for preventing material in storage tank from crystallizing by utilizing thermosyphon principle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The crystallization temperature of material A is 95°C, the boiling point under normal pressure is 145°C, the diameter of storage tank 1 is 4m, and the storage volume is about 80m 3 . The liquid return thermometer 12 has a diameter of DN250, and the quantity is 2 (symmetrically arranged), the number of thermosiphon small tubes 9 is 22, and the diameters of the material outlet pipe 10 and the material return pipe 11 are DN100. The heating steam parameter is 0.5MPa(g), the saturation temperature is 158°C, the liquid return thermometer 12 and the temperature regulating valve 14 control the heating material to be 140°C.

[0032] Before the material A enters the storage tank, the temperature regulating valve 14 is opened at 30% opening, and the steam is allowed to preheat the thermosiphon heater 1 for 10 minutes before feeding. The temperature of the material A entering the storage tank 1 is 120°C. After entering the storage tank, the steam inlet temperature regulating valve...

Embodiment 2

[0034] The crystallization temperature of material B is 125°C, the boiling point under normal pressure is 170°C, the diameter of storage tank 1 is 5m, and the storage volume is about 120m 3 . The liquid return thermometer 12 has a diameter of DN200, and the number is 4 (symmetrically distributed), the number of thermosiphon small tubes 9 is 18, and the diameters of the material outlet pipe 10 and the material return pipe 11 are DN100. The heating steam parameter is 0.8MPa(g), the saturation temperature is 175°C, and the liquid return thermometer 12 and temperature regulating valve 14 control the heating material to 165°C.

[0035] Before the material B enters the storage tank, the temperature regulating valve 14 is opened at 30% opening, and the steam is allowed to preheat the thermosiphon heater 1 for 10 minutes before feeding. The temperature of the material A entering the storage tank 1 is 140°C. After entering the storage tank, the steam inlet temperature regulating valve...

Embodiment 3

[0037] The crystallization temperature of material C is 80°C, the boiling point under normal pressure is 155°C, the diameter of storage tank 1 is 6m, and the storage volume is about 160m 3. The liquid return thermometer 12 has a diameter of DN300, and the number is 2 (symmetrically arranged), the number of thermosiphon small tubes 9 is 38, and the diameters of the material outlet pipe 10 and the material return pipe 11 are DN150. The heating steam parameter is 0.5MPa(g), the saturation temperature is 158°C, the liquid return thermometer 12 and the temperature regulating valve 14 control the heating material to be 150°C.

[0038] Before the material C enters the storage tank, the temperature regulating valve 14 is opened at 30% to let the steam preheat the thermosiphon heater 1 for 10 minutes before feeding. The temperature of the material A entering the storage tank 1 is 110°C. After entering the storage tank, the steam inlet temperature regulating valve 14 of the thermosipho...

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

PropertyMeasurementUnit
Crystallization temperatureaaaaaaaaaa
Boiling pointaaaaaaaaaa
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a chemical industry process, particularly to a process for preventing materials in a storage tank from crystallizing by utilizing thermosyphon principle. According to the process, on a storage tank body, a thermosyphon heater system is arranged, and a thermosyphon heater is preheated; after a material enters the storage tank, the temperature regulating valve on a heating steam inlet pipe is completely opened; steam is supplied to the thermosyphon heater; under the heating of steam outside the pipe, the liquid level of the upper portion of a thermosyphon small pipe canbe partially vaporized due to high temperature; the process steam enters the position below the liquid level of the storage tank through a material return pipe, and negative pressure occurs on the upper portion of the thermosyphon small pipe; and the material returns to the storage tank, the thermosyphon material circulation is achieved, and the material in the tank is in a continuous flowing state. According to the invention, by using the external siphon device, the risk of explosion caused by dripping of lubricating oil of the stirrer into a solution is avoided; by using the siphon principle, heat can be continuously supplied, the stirrer can be replaced, self-circulation flowing is achieved, and crystallization is avoided; and the problem of short preservation time of the easily crystallized solution is solved.

Description

technical field [0001] The invention relates to a chemical process, in particular to a process for preventing material crystallization of storage tanks by utilizing the thermosiphon principle. Background technique [0002] In chemical installations, storage tanks are often used to store solutions. For some solutions with high crystallization temperature, the insulation effect is not good or uneven, which will lead to crystallization of the material, which is difficult to handle. Therefore, in actual installations, the diameter of this type of storage tank is generally small, and the internal heating coil takes up a lot of space, and the storage capacity is small, which is not very convenient for the production and operation of chemical equipment. For example, for ammonium nitrate solution, when the concentration is 90%, its crystallization temperature is 95°C; when the concentration is 95%, its crystallization temperature is 125°C, such material storage tanks have high requi...

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
IPC IPC(8): B65D88/74B65D90/02B65D90/48
CPCB65D88/744B65D90/02B65D90/48
Inventor 闫家鹏王国胜孟召宾
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com