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

Evaporator of riser for raw coke-oven gas from coke oven

A waste gas and evaporator technology, used in coke ovens, coke oven heating, indirect heat exchangers, etc., can solve problems such as increased sewage discharge, large ammonia water, consumption, etc., to avoid tar sticking and ensure safe operation. , the effect of uniform flow field distribution

Pending Publication Date: 2017-10-10
HUATIAN ENG & TECH CORP MCC +1
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process not only wastes a lot of raw gas sensible heat, but also consumes a lot of ammonia water, wastes a lot of water resources and electricity, and increases the amount of sewage discharge
[0003] The sensible heat of raw coke oven gas is huge and has not been effectively utilized

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
  • Evaporator of riser for raw coke-oven gas from coke oven
  • Evaporator of riser for raw coke-oven gas from coke oven

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] combine figure 1 , this embodiment provides a coke oven waste gas riser evaporator, which includes an inner tube 2, an inner sleeve 3, an insulating layer 4 and an outer jacket 5 that are sequentially arranged from the inside to the outside; wherein, the inner side of the inner tube is Waste gas channel 6, the upper and lower end surfaces of the inner pipe and the inner casing are respectively sealed with the flange 7, a steam-water channel 8 is formed between the inner pipe 2 and the inner casing 3, and the steam drum feed water is absorbed in the jacket and rises A water inlet pipe 10 is arranged at the bottom of the steam water channel for introducing cooling water to the steam water channel, and a water outlet pipe 9 is arranged at the top of the steam water channel; it also includes a temperature sensor, a control device and Inlet flow control valve;

[0024] The temperature sensor is arranged on the outer wall of the inner casing for the temperature of the outer ...

Embodiment 2

[0031] As a specific solution of Embodiment 1, the outer jacket is provided with a balance hole 13 and a temperature measurement hole 14 for placing a temperature sensor, and the temperature measurement thermocouple in the temperature sensor is in contact with the outer wall of the inner sleeve 3 .

[0032] The balance hole 13 in this embodiment can effectively balance the pressure difference caused by the temperature difference in the outer jacket 5; the temperature measurement hole 14 is provided on the outer side of the inner casing 3, and the water inlet can be controlled according to the temperature and flow rate change curve of the raw gas in the coking period of the coking chamber The flow ensures heat exchange efficiency.

Embodiment 3

[0034] As a further improvement of Embodiment 1, there are several groups of spiral grooves on the outer surface of the side wall of the inner tube, each of the spiral grooves has the same depth, and each of the spiral grooves forms a branch of a soda-water channel outside the inner tube; The end face of the side wall of the spiral groove is sealedly connected with the inner sleeve.

[0035] Preferably, the two adjacent sets of helical grooves are arranged at equal pitches.

[0036] In this embodiment, the coke oven waste gas riser tube evaporator adopts a unique spiral hole-slot steam-water channel structure. The outer wall of the inner tube is machined by a lathe, and the spiral groove is machined by turning and milling. There is no welding seam between the side walls of the spiral groove, so that the steam-water flow field in the jacket is evenly distributed, the heat exchange path is extended, the sufficient heat exchange between the media is ensured, the heat exchange eff...

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 an evaporator of a riser for raw coke-oven gas from a coke oven. The evaporator comprises an inner pipe, an inner sleeve, a heat preservation layer and an outer jacket, wherein the inner pipe, the inner sleeve, the heat preservation layer and the outer jacket are arranged in sequence from interior to exterior; a vapor water passage is formed between the inner pipe and the inner sleeve; the bottom of the vapor water passage is provided with a water inlet pipe used for introducing cooling water into the vapor water passage; the top of the vapor water passage is provided with a water outlet pipe; the evaporator also comprises a temperature sensor, a control device and a water inlet flow regulating valve; the temperature sensor is arranged on the outer wall of the inner sleeve, and is used for detecting the temperature of the outer wall of the inner sleeve and outputting detected temperature information to the control device; the control device is used for receiving the temperature information output by the temperature sensor and outputting a control signal to the water inlet flow regulating valve according to the temperature information; the water inlet flow regulating valve is arranged on the water inlet pipe; the water inlet flow regulating valve is used for receiving the control signal output by the control device and regulating the aperture of the valve according to the control signal. By using the evaporator, the heat exchange efficiency can be guaranteed; the sensible heat of the raw coke-oven gas can be effectively recovered.

Description

technical field [0001] The invention relates to the technical field of sensible heat recovery and utilization of waste gas in a coke oven riser, in particular to a coke oven waste gas riser evaporator. Background technique [0002] During the coking process of the coke oven, a large amount of waste gas escapes from the carbonization chamber, which is cooled and collected by the riser pipe, bridge pipe and gas collecting pipe of the coke oven and sent to the chemical plant for purification treatment; in a coking cycle, the single-hole carbonization chamber produces The outgoing gas is about 10000m 3 , When the waste gas passes through the coke oven riser, the temperature is as high as 650 ~ 800 ℃, which contains a lot of sensible heat. In order to reduce the temperature of the coke oven waste gas and facilitate the subsequent coking process, the traditional process adopts the spraying of circulating ammonia water to rapidly cool the high temperature waste gas, so that the wa...

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): C10B27/00F28D7/10
CPCF28D7/106C10B27/00
Inventor 王浩余波王淦程寒飞詹茂华桂峰王泉荣安忠义杨春根
Owner HUATIAN ENG & TECH CORP MCC
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