CN101706219A - Stainless steel tube-shell type concentrated sulfuric acid cooler with thin tube sheet stage cooling and anode protection - Google Patents
Stainless steel tube-shell type concentrated sulfuric acid cooler with thin tube sheet stage cooling and anode protection Download PDFInfo
- Publication number
- CN101706219A CN101706219A CN200910223785A CN200910223785A CN101706219A CN 101706219 A CN101706219 A CN 101706219A CN 200910223785 A CN200910223785 A CN 200910223785A CN 200910223785 A CN200910223785 A CN 200910223785A CN 101706219 A CN101706219 A CN 101706219A
- Authority
- CN
- China
- Prior art keywords
- tube
- shell
- sulfuric acid
- concentrated sulfuric
- stainless steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a stainless steel tube-shell type concentrated sulfuric acid cooler with thin tube sheet stage cooling and anode protection. A shell pass, a tube pass and an anode protection assembly form an independent run unit, and two ends of a cylinder of the shell pass are connected with a water tank cylinder belonging to the part of the tube pass. The stainless steel tube-shell type concentrated sulfuric acid cooler with thin tube sheet stage cooling and anode protection is characterized in that tube sheets are fixed on the inner walls of two ends of the cylinder of the shell pass through welding to form a fixed heat exchange tube bundle and sealing devices at two ends of the shell pass; the tube sheets are positioned at the inner sides of the outer edges of the inner walls at two ends of the cylinder of the shell pass, and the cylinder of the shell pass and the cylinder of the water tank are connected in a sealing mode by welding; two or a plurality of the independent run units are connected in series and divided into single or a plurality of high-temperature section run systems and low-temperature section run systems with equal mount or unequal amount according to temperature. The invention can solve the technical problems of a traditional concentrated sulfuric acid cooler, such as high equipment investment expense, great abandonment loss and other technical problems, which are caused by using a great deal of stainless steel.
Description
Technical field
The present invention relates to chemical mechanical equipment, refer in particular to a kind of stainless steel tube-shell type concentrated sulfuric acid cooler with thin tube sheet stage cooling and anode protection.
Background technology
Employed " anodic protection stainless steel shell-and-tube concentrated sulfuric acid cooler " is a kind of fixed tube-sheet exchanger in the sulfuric acid production system at present, as shown in Figure 1.It is made up of shell side and tube side, shell side walks the concentrated sulfuric acid, flow through by between import acid tube, outlet acid tube, flanged (FLGD) left tube sheet acid side, flanged (FLGD) right tube sheet acid side, shell-side cylinder inboard, heat exchanger tube beam tube and the sour runner formed of deflection plate, and their material is stainless steel.Tube side is walked cooling water, the water flow passage of flowing through and being made up of import water pipe, outlet water pipe, left water tank flat cover water side, right water tank flat cover water side, left water tank cylindrical shell inboard, right water tank cylindrical shell inboard, flanged (FLGD) left tube sheet water side, flanged (FLGD) right tube sheet water side and heat exchanger tube beam tube inboard, other is carbon steel to their material except that the back three is stainless steel.The cooling of hot concentrated sulfuric acid is performed such, the absorption acid that dry acid of coming out from the drying tower underflow or absorber column bottoms stream are come out, the flow through shell side of cooler, contact with heat exchanger tube beam tube outer wall is mobile, heat transferred heat exchanger tube beam tube outer wall, make the sour temperature drop of hot concentrated sulfuric acid be low to moderate the requirement that meets drying process or absorption technique, deliver to drying tower or absorption tower again, manipulate as dry or absorption, carry out so repeatedly.By the cooling water that cooling tower is sent here, the tube side of the cooler of flowing through contacts with the heat-exchanging tube bundle inside pipe wall is mobile, through the heat absorption that tube wall transmits, water temperature is raise, be sent to the cooling tower cooling again after, return cooler and be re-used as cooling water, carry out so repeatedly.
The heat exchange tube wall of this concentrated sulfuric acid cooler is very thin; under the situation of not taking any safeguard measure; move the leakage that just is corroded half a year approximately; but after the stainless steel surfaces that adopts the anodic protection technology that shell side is contacted with the concentrated sulfuric acid is protected; can improve about 20 times the service life of heat exchanger tube, cooler has just become " anodic protection stainless steel shell-and-tube concentrated sulfuric acid cooler " like this.The long service life of this concentrated sulfuric acid cooler, safe and reliable to operation, important guarantee effect has been played in the normal operation that guarantees gas washing in SA production.But also there are the following problems: when heat exchanger tube is corroded leakage and when concentrated sulfuric acid cooler is scrapped, more than 15 times, can also uses flanged (FLGD) tube sheet for many years also together to be scrapped than the heat exchange thickness of pipe, this is a kind of bigger loss.
Summary of the invention
The purpose of this invention is to provide a kind of improved stainless steel tube-shell type concentrated sulfuric acid cooler with thin tube sheet stage cooling and anode protection; solving a large amount of use stainless steels that traditional concentrated sulfuric acid cooler exists, technical problem such as the high and loss from spoilage of the equipment investment expense of the concentrated sulfuric acid cooler that causes is big.
Stainless steel tube-shell type concentrated sulfuric acid cooler with thin tube sheet stage cooling and anode protection of the present invention, it is by shell side, tube side and anodic protection parts are formed one and are independently moved the unit, and the cylindrical shell two ends of described shell side are connected with the water tank cylindrical shell that belongs to the tube side part; Be positioned at the cylindrical shell two ends inwall of shell side,, forming the fixedly sealing device of heat-exchanging tube bundle and shell side two ends by the welding fixed tube sheet; Described tube sheet is positioned at the inboard, outer of the cylindrical shell two ends inwall of shell side, and the cylindrical shell of described shell side adopts welded seal to be connected with the water tank cylindrical shell; Independently move units in series by above-mentioned two or several,, be divided into high temperature section, low-temperature zone operational system that single or multiple quantity equate or do not wait by the height of temperature.
The shell side length that described each series connection independently moves the unit is arranged to different length as required.
Described tube sheet adopts the thin tubesheet of tens millimeters thickness.
Advantage of the present invention and good effect: 1, substitute common flanged (FLGD) tube sheet, can save stainless steel material and the corresponding processing charges of 70-80% with thin tubesheet; 2, shell-side cylinder adopts to be welded to connect for flange with the water tank cylindrical shell and is connected, and can save two simple steel flanges and corresponding processing charges; 3, the cooling system of many branch high and low temperature sections, the operation unit of high temperature section easily damage in advance than the operation unit of other sections to be scrapped, and the operation unit that only needs to change this section separately get final product, so has reduced scrap cost.
Description of drawings
Fig. 1 is traditional anodic protection stainless steel shell-and-tube concentrated sulfuric acid cooler.
Fig. 2 is a thin tubesheet anodic protection stainless steel shell-and-tube concentrated sulfuric acid cooler of the present invention.
Fig. 3 is the syndeton schematic diagram of multistage train of the present invention.
The specific embodiment
The specific embodiment of the present invention is referring to accompanying drawing.
The present invention is by shell side; tube side and anodic protection parts are formed; shell side is walked the concentrated sulfuric acid, flows through by between import acid tube, outlet acid tube, left thin tubesheet acid side, right thin tubesheet acid side, shell-side cylinder inboard, heat exchanger tube beam tube and the sour runner formed of deflection plate, and their material is stainless steel.Tube side is walked cooling water; the water flow passage of flowing through and being formed by import water pipe, outlet water pipe, left water tank flat cover water side, right water tank flat cover water side, left water tank cylindrical shell inboard, right water tank cylindrical shell inboard, the survey of left thin tubesheet water, right thin tubesheet water side and heat exchanger tube beam tube inboard; and the anodic protection parts that are arranged in shell-side, other is carbon steel to their material for the stainless steel except that the back.
Fig. 1 is the structural representation of employed in the present sulfuric acid production system " anodic protection stainless steel shell-and-tube concentrated sulfuric acid cooler ".It is made up of shell side, tube side and anodic protection system.Shell side is walked the concentrated sulfuric acid and is flowed through by import acid tube 52; outlet acid tube 51, flanged (FLGD) left tube sheet 41 sour sides; flanged (FLGD) right tube sheet 42 sour sides, shell-side cylinder 60 inboards; the concentrated sulfuric acid runner of forming with deflection plate 111 between heat-exchanging tube bundle 80 pipes; add the anode protection device 101,102 that places shell side, their material is stainless steel.Tube side is walked cooling water, flow through by import water pipe 31, outlet water pipe 32, left water tank flat cover 11 water sides, right water tank flat cover 12 water sides, left water tank cylindrical shell 71 inboards, right water tank cylindrical shell 72 inboards, flanged (FLGD) left tube sheet 41 water sides, flanged (FLGD) right tube sheet 42 water sides and the inboard water flow passage of forming of heat-exchanging tube bundle 80 pipes, their material except that the back three for other are carbon steel the stainless steel, be carbon steel with the material of the concentrated sulfuric acid and all discontiguous left water tank flange 21,23 of water and right water tank flange 22,24.
Fig. 2 is the structural representation of the present invention's designed a kind of " thin tubesheet anodic protection stainless steel shell-and-tube concentrated sulfuric acid cooler " of being applicable to dry acid and common absorption acid.It is made up of shell side, tube side and anodic protection system; shell side is walked the concentrated sulfuric acid; flow through between import acid tube 52, outlet acid tube 51, left thin tubesheet 91 sour sides, right thin tubesheet 92 sour sides, shell-side cylinder 60 inboards, heat-exchanging tube bundle 80 pipes and the concentrated sulfuric acid runner of deflection plate 111 compositions; add the anode protection device 101,102 that places shell side, their material is stainless steel.Tube side is walked cooling water, flow through by import water pipe 31, outlet water pipe 32, left water tank flat cover 11 water sides, right water tank flat cover 12 water sides, left water tank cylindrical shell 71 inboards, right water tank cylindrical shell 72 inboards, left thin tubesheet 91 water sides, right thin tubesheet 92 water sides and the inboard water flow passage of forming of heat-exchanging tube bundle 80 pipes, other are carbon steel to their material except that the back three is stainless steel.Be carbon steel with the material of the concentrated sulfuric acid and all discontiguous left water tank flange 21 of water and right water tank flange 22.
The new design of the present invention is as follows with the technical scheme of saving stainless steel material and carbon steel material:
1. new design adopts the thin tubesheet 91,92 of tens millimeter thickness to replace flanged (FLGD) common tube plate 41,42, and thin tubesheet 91,92 is solded in the shell-side cylinder 60 two ends inwalls, described thin tubesheet is positioned at the outer of the cylindrical shell 60 two ends inwalls of shell side, and the outer part that reserves is for being connected with 71,72 butt welding of water tank cylindrical shell.The stainless weight of thin tubesheet 91,92 usefulness only is the 20-30% that flanged (FLGD) common tube plate 41,42 used stainless steels weigh, stainless steel material and the corresponding processing charges that can save 70-80%.
2. new design is connected the connected mode of shell-side cylinder 60 and water tank cylindrical shell 71,72 and changes shell-side cylinder 60 into and water tank cylindrical shell 71,72 directly is welded to connect by the bolted of left water tank flange 23 and left tube sheet flange 41, right water tank flange 24 and right tube sheet flange 42, can save two water tank flanges, 23,24 materials and processing charges accordingly.
When the present invention formed train, by high and low high temperature section, the low-temperature zone of being divided into of temperature, two sections isometric or not isometric.High temperature section and low-temperature zone can only be made of two series connection, referring to the syndeton of Fig. 3.Under the situation of high temperature more, if high temperature section and low-temperature zone have enough length, then can also be with high temperature section and low-temperature zone again by using after many platform independent operation units in series.The shell side length that described each series connection independently moves the unit is arranged to different length as required.
Claims (3)
1. stainless steel tube-shell type concentrated sulfuric acid cooler with thin tube sheet stage cooling and anode protection, it is by shell side, and tube side and anodic protection parts are formed one and are independently moved the unit, and the cylindrical shell two ends of described shell side are connected with the water tank cylindrical shell that belongs to the tube side part; It is characterized in that: be positioned at the cylindrical shell two ends inwall of shell side,, forming the fixedly sealing device of heat-exchanging tube bundle and shell side two ends by the welding fixed tube sheet; Described tube sheet is positioned at the inboard, outer of the cylindrical shell two ends inwall of shell side, and the cylindrical shell of described shell side adopts welded seal to be connected with the water tank cylindrical shell; Independently move units in series by above-mentioned two or several,, be divided into high temperature section, low-temperature zone operational system that single or multiple quantity equate or do not wait by the height of temperature.
2. a kind of described stainless steel tube-shell type concentrated sulfuric acid cooler with thin tube sheet stage cooling and anode protection as claimed in claim 1 is characterized in that: the shell side length that described each series connection independently moves the unit is arranged to different length as required.
3. a kind of described stainless steel tube-shell type concentrated sulfuric acid cooler with thin tube sheet stage cooling and anode protection as claimed in claim 1 is characterized in that: tube sheet adopts the thin tubesheet of tens millimeters thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910223785A CN101706219A (en) | 2009-04-27 | 2009-11-19 | Stainless steel tube-shell type concentrated sulfuric acid cooler with thin tube sheet stage cooling and anode protection |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910135701.5 | 2009-04-27 | ||
| CN200910223785A CN101706219A (en) | 2009-04-27 | 2009-11-19 | Stainless steel tube-shell type concentrated sulfuric acid cooler with thin tube sheet stage cooling and anode protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101706219A true CN101706219A (en) | 2010-05-12 |
Family
ID=42376460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910223785A Pending CN101706219A (en) | 2009-04-27 | 2009-11-19 | Stainless steel tube-shell type concentrated sulfuric acid cooler with thin tube sheet stage cooling and anode protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101706219A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776280A (en) * | 2014-01-26 | 2014-05-07 | 浙江大学 | Vertical type heat exchanger with convex light wall pipe plate |
| CN107062951A (en) * | 2017-05-31 | 2017-08-18 | 镇海石化建安工程有限公司 | A kind of heat exchanger group |
-
2009
- 2009-11-19 CN CN200910223785A patent/CN101706219A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776280A (en) * | 2014-01-26 | 2014-05-07 | 浙江大学 | Vertical type heat exchanger with convex light wall pipe plate |
| CN103776280B (en) * | 2014-01-26 | 2015-08-12 | 浙江大学 | There is the vertical heat exchanger of convex thin tubesheet |
| CN107062951A (en) * | 2017-05-31 | 2017-08-18 | 镇海石化建安工程有限公司 | A kind of heat exchanger group |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103776280B (en) | There is the vertical heat exchanger of convex thin tubesheet | |
| CN204115531U (en) | A kind of shell-and-tube gas-gas heat exchanger | |
| CN201444007U (en) | Detachable spiral plate heat exchanger | |
| CN101526318A (en) | Thin-tube-plate segment anodic protection stainless steel shell-and-tube concentrated sulfuric acid cooling tower | |
| CN101706219A (en) | Stainless steel tube-shell type concentrated sulfuric acid cooler with thin tube sheet stage cooling and anode protection | |
| CN203132400U (en) | Vertical floating head type heat exchanger | |
| CN206601057U (en) | Spiral tube heat exchanger | |
| CN205843436U (en) | A kind of heat exchanger of thermal source Multi-class propagation | |
| CN202582237U (en) | Plate-shell type condenser | |
| CN201569336U (en) | Glass lining multitube type heat exchanger | |
| CN101696862A (en) | Full welded plate bundle with reinforced structures | |
| CN216385207U (en) | Heat exchanger with heat exchange tube provided with protective sleeve | |
| CN107328269B (en) | Plate-shell heat exchanger composed of parallel plate bundles | |
| CN201569334U (en) | Stainless steel pipe shell-type concentrated sulfuric acid cooler protected by thin pipe plate anode | |
| CN108253819A (en) | A kind of coal changes electric heat exchanging body and heat-exchange system | |
| CN203990568U (en) | Modified hydrolysis reactor | |
| CN203704731U (en) | Vertical heat exchanger with convex thin tube plate | |
| CN108775828B (en) | Superconducting heat exchange unit, device and system thereof | |
| CN102200398A (en) | Double-shell heat exchanger | |
| CN206488675U (en) | A kind of double-flow band-tube type heat exchanger | |
| CN220398316U (en) | Vertical spiral plate heat exchanger | |
| CN221549393U (en) | Tower type tail gas condensing device | |
| CN219200136U (en) | Square spiral plate type heat exchanger | |
| CN214892749U (en) | Heat exchanger for flash tower of fractionating tower | |
| CN203635023U (en) | Methanol conversion and synthesis compression section system with plate heat exchangers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100512 |