CN202404050U - Determining device for dew point of coal gas - Google Patents
Determining device for dew point of coal gas Download PDFInfo
- Publication number
- CN202404050U CN202404050U CN 201120551349 CN201120551349U CN202404050U CN 202404050 U CN202404050 U CN 202404050U CN 201120551349 CN201120551349 CN 201120551349 CN 201120551349 U CN201120551349 U CN 201120551349U CN 202404050 U CN202404050 U CN 202404050U
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- cup
- dew point
- copper
- coal gas
- transparent
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Abstract
The utility model relates to a determining device for a dew point of coal gas. The determining device comprises an airtight transparent cup and a copper cup inserted into the transparent cup, wherein a gap is leaved between the bottom of the copper cup and the bottom of the transparent cup; a gas inlet pipe and a gas outlet pipe are arranged on the transparent cup; the upper end of the copper cup is opened; and acetone solution, dry ice and mercurial thermometer are arranged in the copper cup. According to the technical scheme, the temperature of the copper cup is reduced by introducing to-be-determined coal gas into the transparent cup through the gas inlet pipe while adding dry ice into the acetone solution in the copper cup and continuously stirring by using the mercurial thermometer; when the temperature is reduced to the dew point of the to-be-determined coal gas, condensable acid mist starts to condense into fine dew on the outer surface of the copper cup and the original gloss is lost, and meanwhile the temperature displayed by the mercurial thermometer is the dew point of the coal gas; and the service life of equipment is prolonged and the dew point corrosion is avoided by controlling the temperature of a heat exchanger in such a manner.
Description
Technical field
The utility model relates to a kind of coal gas dew point determinator.
Background technology
In the production of synthetic ammonia or methyl alcohol, produce semiwater gas in gas making workshop section, semiwater gas is produced in producer gas generator, and its producer gas generator all is furnished with fire tube waste heat boiler to reclaim the waste heat of blowing and system gas (upstream or downstream).In order further to reclaim waste heat boiler gas and up, descending low-temperature heat quantity, most of enterprise has added soft water heater again in the waste heat boiler back, and the enterprise that has then is provided with steam superheater before waste heat boiler.Taked after these measures, common problems of ubiquity all, be exactly dew point corrosion be the low temperature electrochemical etching problem, though heat recovery is many, the equipment corrosion problem is aggravation thereupon also.The combustion of sulfur that the main cause that produces corrosion is to dry in the stage feed coal generates SO
2, the further oxidation of wherein a part of gas generates SO
3, and being combined into sulfuric acid vapor with water vapour in the blowing-out gas, in fact the dew point of coal gas is exactly the dew point of sulfuric acid vapor, higher than corresponding water vapour dew point.Therefore; On the inwall of heat transmission equipment, on the heat pipe, on the fin, on the tube sheet, the first-class different parts of tubulation, separate out acid cure liquid, equipment is corroded; What of sulfur content in the coal are the degree of corrosion depend primarily on, so it is particularly important to grasp the temperature of coal gas dew point.
The utility model content
The purpose of the utility model provides a kind of determinator of coal gas dew point, and this device can be measured the dewpoint temperature of coal gas, thereby prolongs the serviceable life of equipment.
For realizing above-mentioned purpose; The utility model has adopted following technical scheme: comprise airtight transparent cup and the copper cup that inserts in the transparent cup; The cup of the cup end of copper cup and transparent cup leaves the gap at the end; Transparent cup is provided with draft tube and escape pipe, copper cup open upper end, and be provided with acetone solution, dry ice and mercury thermometer in the copper cup.
Can know that by technique scheme the utility model adds dry ice in the acetone solution in the copper cup simultaneously through coal gas to be measured is fed in the transparent cup through draft tube; And do not stop to stir with mercury thermometer, copper cup temperature is descended, when temperature drops to the dew point of tested coal gas; The acid mist that can coagulate just begins the tiny dew that on the outside surface of copper cup, congeals into; And make it lose original gloss, at this moment the mercury thermometer temperature displayed is exactly the dew point of coal gas, like this through controlling the temperature of heat interchanger; Just can prolong the serviceable life of equipment, prevent dew point corrosion.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified:
A kind of coal gas dew point determinator as shown in Figure 1 comprises airtight transparent cup 1 and the copper cup 2 that inserts in the transparent cup 1, and the cup of the cup end of copper cup 2 and transparent cup 1 leaves the gap at the end; Transparent cup 1 comprises cup 11 and bowl cover 12, and bowl cover 12 is provided with draft tube 3 and escape pipe 4, the open upper end of copper cup 2; The upper end that is copper cup 2 is an open state; Be provided with acetone solution 5 and mercury thermometer 6 in the copper, as the preferred version of the utility model, the 2 outside surface chromium plating of copper cup also are polished to minute surface; The cup position, the end of the exit position of draft tube 3 and copper cup 2 matches simultaneously, is in order to observe the dew point of coal gas more easily like this.
Concrete testing process is following:
In airtight transparent cup 1, place appearance chromium plating and be polished to the copper cup 2 of minute surface, be loaded with handle ketone liquid in the copper cup, coal gas to be measured is fed in the transparent cup 1 through draft tube; In acetone solution 5, drop into granule dry ice gradually; And constantly stir with mercury thermometer 6, copper cup 2 temperature are descended, when temperature drops to the coal gas dew point; The acid mist that can coagulate just begins the tiny dew that on the outside surface of copper cup 2, congeals into; And it is former glossy that it is lost, and the temperature of this moment is exactly the dew point of coal gas, can be read by mercury thermometer 6.After learning the dew point of coal gas, only need the temperature of control heat interchanger like this, just can prevent the phenomenon of dew point corrosion, thereby prolong the serviceable life of equipment.
Claims (4)
1. coal gas dew point determinator; It is characterized in that: comprise airtight transparent cup (1) and insert the copper cup (2) in the transparent cup (1); The cup of the cup end of copper cup (2) and transparent cup (1) leaves the gap at the end; Transparent cup (1) is provided with draft tube (3) and escape pipe (4), copper cup (2) open upper end, and be provided with acetone solution (5), dry ice and mercury thermometer (6) in the copper cup (2).
2. coal gas dew point determinator according to claim 1 is characterized in that: described copper cup (2) outside surface chromium plating, and the outside surface of copper cup (2) is a minute surface.
3. coal gas dew point determinator according to claim 1 is characterized in that: transparent cup (1) comprises cup (11) and bowl cover (12), and draft tube (3) is arranged on the bowl cover (12) with escape pipe (4).
4. coal gas dew point determinator according to claim 3 is characterized in that: the cup position, the end of the exit position of described draft tube (3) and copper cup (2) matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120551349 CN202404050U (en) | 2011-12-27 | 2011-12-27 | Determining device for dew point of coal gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120551349 CN202404050U (en) | 2011-12-27 | 2011-12-27 | Determining device for dew point of coal gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202404050U true CN202404050U (en) | 2012-08-29 |
Family
ID=46701690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120551349 Expired - Fee Related CN202404050U (en) | 2011-12-27 | 2011-12-27 | Determining device for dew point of coal gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202404050U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102495102A (en) * | 2011-12-27 | 2012-06-13 | 安徽淮化股份有限公司 | Determination apparatus for dew point of gas |
-
2011
- 2011-12-27 CN CN 201120551349 patent/CN202404050U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102495102A (en) * | 2011-12-27 | 2012-06-13 | 安徽淮化股份有限公司 | Determination apparatus for dew point of gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20141227 |
|
| EXPY | Termination of patent right or utility model |