CN2889434Y - Circulated water liquid ammonia evaporator - Google Patents
Circulated water liquid ammonia evaporator Download PDFInfo
- Publication number
- CN2889434Y CN2889434Y CN 200620033532 CN200620033532U CN2889434Y CN 2889434 Y CN2889434 Y CN 2889434Y CN 200620033532 CN200620033532 CN 200620033532 CN 200620033532 U CN200620033532 U CN 200620033532U CN 2889434 Y CN2889434 Y CN 2889434Y
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- CN
- China
- Prior art keywords
- tube
- plate
- liquefied ammonia
- support plate
- evaporimeter
- 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.)
- Expired - Fee Related
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Abstract
The utility model is an evaporator for circulating water liquid ammonia, two ends of a cylinder-shaped shell body (6) are sealing tube cases (1) separated by a tube plate, the tube cases (1) have water inlets or water outlets (7), the tube cases (1) located at two ends are communicated with each other through a heat exchange tube (5) fixed on tube plate hole, a liquid ammonia inlet (8) and a gas ammonia outlet (9) are arranged on the sealing shell body(6) between the tube plates, the shell body (6) is provided with a supporting plate (4) passed by a plurality of heat exchange tubes (5), the tube plate is of compound plate, which is composed of a stainless steel protection plate (2) in the face of the tube cases (1), and carbon steel plate (3) in the face of the shell.
Description
Technical field:
The utility model is relevant as the liquefied ammonia vaporising device of medium heat exchange with water.
Background technology:
Usually need in the Chemical Manufacture liquid ammonia evaporates is become gaseous ammonia.At present, most of devices adopt saturated vapor as thermal source, carry out indirect heat exchange with liquefied ammonia and make liquefied ammonia flash to gas ammonia.Though this mode can normally be carried out, evaporate 1 ton of ammonia and will consume about 600Kg steam, and when misoperation, also have explosion danger.(design pressure of evaporimeter is generally 1.8MPa, and evaporator temperature may reach more than 100 ℃ when control device loses efficacy, and this moment, the pressure of ammonia evaporator can reach more than the 6MPa, can produce explosion danger).
The content of utility model:
The purpose of this utility model provides a kind of simple in structure, and is easy to manufacture, the recirculated water liquefied ammonia evaporimeter of ammonia pressure and stability of flow when long service life, safe, evaporation operation.
The utility model is achieved in that
The utility model recirculated water liquefied ammonia evaporimeter, the two ends of barrel-type casing 6 are the sealing bobbin carriages 1 that are divided into by tube sheet, bobbin carriage 1 has water inlet or delivery port 7, the bobbin carriage 1 that is positioned at two ends is communicated with by the heat exchanger tube 5 that is fixed on the tubesheet holes, liquefied ammonia inlet 8 and gas ammonia outlet 9 are arranged on the closure casing 6 between the tube sheet, the support plate 4 that has some heat exchanger tubes 5 to pass in the housing 6 is characterized in that tube sheet is a composite plate, is connected and composed with the carbon steel sheet 3 of facing housing by the stainless steel protective plate 2 in the face of bobbin carriage 1.
The thickness of carbon steel sheet 3 is 70-80mm, and the thickness of stainless steel protective plate 2 is 4-8mm.
Support plate 4 is that the two gardens identical with housing 6 internal diameters lack shape, and its two straight line is respectively the support plate bottom and upper segment and parallels.
The height H that lacks arc: support plate radius R=1: 10.
The utility model is the one way shell-and-tube heat exchanger, and heat transferring medium is a recirculated water, walks in the pipe; To be subjected to thermal material be liquefied ammonia, walk in the shell between pipe.One ton of ammonia of every evaporation can be saved saturated vapor 600kg, recyclable cold 1.25 * 106KJ.Owing to adopt clad tubesheet.Promptly add thin stainless steel protective plate (thickness is 6mm) of weldering at thicker (it is thick to be generally 70～80mm) carbon steel tube plate front end.Bear bigger pressure (1.8MPa) with the big carbon steel tube plate of thickness, and go to prevent of the corrosion of acidic circulation water tube sheet with thin corrosion resistant plate.Thereby significantly reduce equipment manufacturing cost.The employing garden lacks the shape support plate.The support plate upper and lower of this shape has bigger breach simultaneously, and resistance was very little when liquefied ammonia and gas ammonia flowed in evaporimeter, and ammonia pressure and flow is stable in the time of can guaranteeing evaporation operation.(support plate of standard type ammonia evaporator only on top or the bottom open a leg-of-mutton small gap, resistance was bigger when liquefied ammonia and gas ammonia flowed, pressure oscillation is big during evaporation operation).The utility model is simple in structure, and is easy to manufacture, with low cost, and security is good, long service life, and operation and maintenance cost are low.
Description of drawings:
Fig. 1 is a structure chart of the present utility model.
Fig. 2 is structure support plate figure.
The specific embodiment:
Recirculated water liquefied ammonia evaporimeter is by bobbin carriage 1 (stainless steel); Protective plate 2 (stainless steel); Tube sheet 3 (carbon steel system); Support plate 4 (carbon steel system); Heat exchanger tube 5, housing 6 parts such as (carbon steel systems) are formed.
The liquefied ammonia evaporimeter is an one way shell-and-tube heat exchanger, and the tube side material is a recirculated water, and the shell side material is a liquefied ammonia.Heat exchanger tube 5 and protective plate 2 are that 304 stainless steels are made, and can prevent the corrosion of recirculated water, and housing 6 and tube sheet 3 are made by the 16MnR steel.Support plate 4 in the evaporimeter is that two gardens lack formula.
30～40 ℃ recirculated water enters in the heat exchanger tube of evaporimeter, and the liquefied ammonia between pipe carries out heat exchange and make it flash to gas ammonia, by 9 outputs of evaporimeter top-portion apertures, gives the user.The about 0.5MPa of operating pressure between evaporator tube is far below design pressure.Even under the situation that all control devices all lost efficacy, the temperature of evaporimeter can not surpass 40 ℃ yet, and corresponding pressure can not surpass 0.16MPa yet, is safe yet.
Claims (4)
1, recirculated water liquefied ammonia evaporimeter, the two ends of barrel-type casing (6) are the sealing bobbin carriages (1) that is divided into by tube sheet, bobbin carriage (1) has water inlet or delivery port (7), the bobbin carriage (1) that is positioned at two ends is communicated with by the heat exchanger tube (5) that is fixed on the tubesheet holes, liquefied ammonia inlet (8) and gas ammonia outlet (9) is arranged on the closure casing between the tube sheet (6), the support plate (4) that has some heat exchanger tubes (5) to pass in the housing (6), it is characterized in that tube sheet is a composite plate, connect and compose with the carbon steel sheet (3) of facing housing by stainless steel protective plate (2) in the face of bobbin carriage (1).
2, according to the described liquefied ammonia evaporimeter of claim 1, the thickness that it is characterized in that carbon steel sheet (3) is 70-80mm, and the thickness of stainless steel protective plate (2) is 4-8mm.
3, according to the described liquefied ammonia evaporimeter of claim 1, it is characterized in that support plate (4) lacks shape for two gardens identical with housing (6) internal diameter, its two straight line is respectively the support plate bottom and upper segment and parallels.
4,, it is characterized in that lacking the height H of arc: support plate radius R=1: 10 according to claim 1 a liquefied ammonia evaporimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620033532 CN2889434Y (en) | 2006-03-24 | 2006-03-24 | Circulated water liquid ammonia evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620033532 CN2889434Y (en) | 2006-03-24 | 2006-03-24 | Circulated water liquid ammonia evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2889434Y true CN2889434Y (en) | 2007-04-18 |
Family
ID=38020086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620033532 Expired - Fee Related CN2889434Y (en) | 2006-03-24 | 2006-03-24 | Circulated water liquid ammonia evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2889434Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101843987A (en) * | 2010-06-11 | 2010-09-29 | 吴国存 | Multi-shaft slag evaporator with arc-shaped end plate |
| CN102728083A (en) * | 2012-05-03 | 2012-10-17 | 瓮福（集团）有限责任公司 | Protection method for preventing liquid ammonia evaporator tube explosion |
| CN104548626A (en) * | 2013-10-15 | 2015-04-29 | 中国石油化工股份有限公司 | Liquid ammonia evaporation technology and device thereof for flue gas desulphurization system |
| CN106966409A (en) * | 2017-04-08 | 2017-07-21 | 华润电力（贺州）有限公司 | A kind of ammonia system processed |
| CN107158728A (en) * | 2017-06-30 | 2017-09-15 | 天津普利奥能源技术发展有限公司 | A kind of Novel steam heated type ammoniacal liquor evaporator |
| CN107281931A (en) * | 2017-08-10 | 2017-10-24 | 福建鑫泽环保设备工程有限公司 | A kind of denitrating flue gas ammoniacal liquor evaporation and buffering integrated tank and its denitrating system |
-
2006
- 2006-03-24 CN CN 200620033532 patent/CN2889434Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101843987A (en) * | 2010-06-11 | 2010-09-29 | 吴国存 | Multi-shaft slag evaporator with arc-shaped end plate |
| CN102728083A (en) * | 2012-05-03 | 2012-10-17 | 瓮福（集团）有限责任公司 | Protection method for preventing liquid ammonia evaporator tube explosion |
| CN104548626A (en) * | 2013-10-15 | 2015-04-29 | 中国石油化工股份有限公司 | Liquid ammonia evaporation technology and device thereof for flue gas desulphurization system |
| CN106966409A (en) * | 2017-04-08 | 2017-07-21 | 华润电力（贺州）有限公司 | A kind of ammonia system processed |
| CN107158728A (en) * | 2017-06-30 | 2017-09-15 | 天津普利奥能源技术发展有限公司 | A kind of Novel steam heated type ammoniacal liquor evaporator |
| CN107281931A (en) * | 2017-08-10 | 2017-10-24 | 福建鑫泽环保设备工程有限公司 | A kind of denitrating flue gas ammoniacal liquor evaporation and buffering integrated tank and its denitrating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070418 Termination date: 20100324 |