CN202109454U - Saturated steam generator with controllable steam pressure - Google Patents
Saturated steam generator with controllable steam pressure Download PDFInfo
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- CN202109454U CN202109454U CN2011201116295U CN201120111629U CN202109454U CN 202109454 U CN202109454 U CN 202109454U CN 2011201116295 U CN2011201116295 U CN 2011201116295U CN 201120111629 U CN201120111629 U CN 201120111629U CN 202109454 U CN202109454 U CN 202109454U
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Abstract
A saturated steam generator with controllable steam pressure belongs to the field of experimental equipment. The saturated steam generator with controllable steam pressure comprises a steam pre-generator including a 3-mouth flask (1) and an aluminum heating sleeve (2), and a saturated steam generator including a glass bead (5), a constant-temperature water bath pot (6), a constant-temperature water bath pipe (7), and a siphon (8). A quartz tube (4) is connected with the steam pre-generator, the saturated steam generator and a reaction furnace, and silicone rubber electrothermal wires are densely wound on the external of the quartz tube (4). Steam pressure can be controlled by controlling the temperature of the water bath pot, and saturated steam, of which the steam content and pressure are controllable, can be generated. Actual high-temperature and water-contained environment can be simulated under laboratory condition. Moreover, the saturated steam generator is simple in structure, can be easily connected to an existing device and replaced, and provides a simpler way for researchers.
Description
Technical field
The invention belongs to the experimental facilities field, relate to the controlled saturated vapor generating means of a kind of water vapor pressure, a kind of water vapour generating means that can control vapour content, pressure that meets Laboratory Request particularly is provided.
Background technology
In high temperature fields such as space flight, metallurgy; The non-oxidized substance material obtains concern more and more widely because of it has good high temperature resistant and corrosion resistance; But in practical application, the environment for use of material is high temperature corrosion mostly, and wherein water vapour is exactly a kind of common corrosive environment.For example, often be in the hot environment as the SiC based composites of gas turbine vitals, the meeting of fuel combustion simultaneously produces a large amount of water vapours.In field of metallurgy, because hydrogen (H
2) reducing power be 14 times of CO, and belong to a kind of clean energy resource, along with advocating of " low-carbon (LC) being metallurgical ", " hydrogen is metallurgical " technology is the optimal selection of steel and iron industry development low-carbon economy, H in the hydrogen metallurgy
2As main reducing gas, iron ore is reduced.In this technical process, H
2Product be water.Hence one can see that, in the process of " hydrogen is metallurgical ", can produce a large amount of water vapours.Under the high temperature aqueous conditions, the protective oxide film of non-oxidized substance material and water react and cause oxide skin(coating) to come off, thereby cause material to lose original performance.
At present, less for the serviceability research of material under the high temperature aqueous conditions, reason is exactly also not have vapour content, the controlled water vapour generating means of pressure can be provided.
Summary of the invention
The object of the invention is to invent a kind of device; Promptly can produce the controlled saturated vapor of content; Can under laboratory condition, simulate the moisture environment of actual high temperature; The serviceability of research material under the high temperature aqueous conditions, for the researcher provides simple and convenient approach, the blank of equipment in the material for repairing research.
The saturated vapor generating means that a kind of water vapor pressure is controlled, be made up of two parts: the preparatory generating means of (1) water vapour comprises aluminium matter heating jacket, there-necked flask; (2) saturated vapor generating means comprises thermostat water bath, water bath with thermostatic control pipe.The preparatory generating means of water vapour is connected by quartz ampoule with the saturated vapor generating means between the two, with quartz ampoule gas is connected in the reacting furnace from saturated water-bath pipe again, and there-necked flask 1 is located in the aluminium matter heating jacket 2; Water bath with thermostatic control pipe 7 is located in the thermostat water bath 6, and water bath with thermostatic control pipe bottom links to each other with siphon pipe 8, and bead is piled in water bath with thermostatic control pipe inside; Quartz ampoule (4) connects the preparatory generating means of water vapour, the saturated generating means of water vapour and reacting furnace.Quartz ampoule twines the silicon rubber heating wire outward, to guarantee that water vapour can condensation in transmission course.
Adopt said apparatus, in the preparatory generating means of water vapour, feed carrier gas (dry air or a certain reacting gas), and the control jacket temperature keeps a certain temperature T
1Constant.Utilize carrier gas to take water vapour out of, through water bath with thermostatic control pipe (placing thermostat water bath), owing to the dividing potential drop of water vapour increases the temperature T of water bath with thermostatic control along with the rising of temperature
2Need be lower than T
1To guarantee that water vapour reaches capacity.Pile bead in the water bath with thermostatic control pipe, prolonged the time that gas passes through, water vapour is fully mixed with the reaction gas physical efficiency.Consistent for pressure inside and outside keeping gas, adopt the inside and outside pressure of siphon pipe control water bath with thermostatic control pipe to be an atmospheric pressure.Connect with quartz ampoule between the preparatory generating means of water vapour, the saturated generating means of water vapour and the reacting furnace, the outer solid matter of quartz ampoule twines silicon rubber heating wire, heating wire heating-up temperature T
3Be slightly larger than T
1To guarantee that water vapour can condensation in transmission course.
The present invention is through the temperature T of control thermostat water bath
2Come the content of water vapour in the controlled atmospher.Principle is following: under the different temperature, the saturated vapor pressure of water vapour is different, and the relation between them can be calculated through a carat Pei Long-Clausius equation (Clausius-Clapeyron):
In the formula: p is saturated vapor pressure (kPa), and factory is temperature (K), Δ
Phase transformationH
mBe solution-air phase molar enthalpy difference (J/mol), Δ
Phase transformationV
mBe solution-air phase molal volume difference (L/mol).Perhaps consult the saturated vapor pressure that physical chemistry handbook (CRC handbook of chemistry and physics) obtains water vapour under the different temperatures.Further obtain the content of saturated vapor according to following formula:
In the formula: m is the content (g/m of saturated water vapour in the unit volume under the temperature T
3); P is the pressure (mmHg) of saturated vapor.
This device is based on the relation between above saturated vapor pressure and the temperature, through regulating the temperature T of thermostat water bath
2(saturated for reaching water vapour, the temperature T of water-bath
2Need be lower than T
1) obtain the saturated vapor dividing potential drop under the different temperatures, obtain the content of saturated vapor under the different temperatures according to formula (2).
The present invention has following main feature:
1. gas componant can fully be mixed: fill bead in the water bath with thermostatic control pipe, prolong the time that gas passes through, can guarantee the abundant mixing of water vapour and reacting gas;
2. water vapour guarantees to reach capacity: the temperature T of thermostat water bath
2Be lower than the heating-up temperature T of heating jacket
1, the vapour pressure when making pre-saturated water vapour through thermostat water bath reduces, and guarantees its state that reaches capacity.
3. water vapor pressure is controlled: through the temperature T of control thermostat water bath
2(for reaching the water vapour saturation state, the temperature T of thermostat water bath
2Be lower than the temperature T of heating jacket
1) reach control water vapor pressure purpose.The temperature of thermostat water bath is adjustable continuously, so the dividing potential drop of water vapour also can continuous control.
4. apparatus structure is simple, is connected with existing device easily, is convenient to change.
Below, in conjunction with accompanying drawing the utility model is done further to describe in detail.
Description of drawings
Fig. 1 implements illustration for the utility model.
There-necked flask 1, aluminium matter heating jacket 2, silicon rubber heating wire 3, quartz ampoule 4, bead 5, thermostat water bath 6, water bath with thermostatic control pipe 7, siphon pipe 8.
Specific embodiments
Normal pressure saturated vapor generating means shown in Figure 1 is made up of there-necked flask 1, aluminium matter heating jacket 2, silicon rubber heating wire 3, quartz ampoule 4, bead 5, thermostat water bath 6, water bath with thermostatic control pipe 7, siphon pipe 8.The preparatory generating means of water vapour is connected by quartz ampoule with the saturated vapor generating means between the two, with quartz ampoule gas is connected in the reacting furnace from saturated water-bath pipe again, and there-necked flask 1 is located in the aluminium matter heating jacket 2; Water bath with thermostatic control pipe 7 is located in the thermostat water bath 6, and water bath with thermostatic control pipe bottom links to each other with siphon pipe 8.Quartz ampoule twines the silicon rubber heating wire outward.Carrier gas (dry air or a certain reacting gas) feeds in the there-necked flask 1, and aqueous water is heated to T by the outer heating jacket 2 of flask in the there-necked flask
1, liquid level keeps the stable of liquid level by fixedly water controller control of top, and carrier gas drives water vapour and gets in the quartz ampoule 4, and solid matter is wrapped in outer silicon rubber heating wire 3 and is heated to T
3(be slightly larger than the temperature T of heating jacket
1, guarantee that water vapour can condensation in transmission course), gas feeds in the water bath with thermostatic control pipe 7, fills bead 5 in the water-bath pipe, is used for the mixing of gas, and the water bath with thermostatic control pipe is positioned in the thermostat water bath 6, and temperature is controlled at T
2(a little less than temperature T
1, saturated to guarantee that water vapour reaches), utilize the inside and outside pressure of siphon pipe 8 controls to be consistent, oversaturated water vapour is condensed into aqueous water, flows out from overflow pipe, and saturated water vapour gets in the reacting furnace, with example reaction through quartz ampoule.
Only need to regulate the temperature T of thermostat water bath
2Get final product content, the pressure of water vapour in the controlled atmospher.
Claims (2)
1. saturated vapor generating means that water vapor pressure is controlled; It is characterized in that, comprise the preparatory generating means of water vapour that constitutes by there-necked flask (1), aluminium matter heating jacket (2) and by bead (5), thermostat water bath (6), water bath with thermostatic control pipe (7), the saturated generating means of water vapour that constitutes; There-necked flask (1) is located in the aluminium matter heating jacket (2); Water bath with thermostatic control pipe (7) is located in the thermostat water bath (6), and water bath with thermostatic control pipe bottom links to each other with siphon pipe (8), and bead is piled in water bath with thermostatic control pipe inside; Quartz ampoule (4) connects the preparatory generating means of water vapour, the saturated generating means of water vapour and reacting furnace.
2. the saturated vapor generating means that a kind of water vapor pressure according to claim 1 is controlled is characterized in that the outer solid matter of quartz ampoule (4) twines silicon rubber heating wire (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201116295U CN202109454U (en) | 2011-04-15 | 2011-04-15 | Saturated steam generator with controllable steam pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201116295U CN202109454U (en) | 2011-04-15 | 2011-04-15 | Saturated steam generator with controllable steam pressure |
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| Publication Number | Publication Date |
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| CN202109454U true CN202109454U (en) | 2012-01-11 |
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ID=45434888
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201116295U Expired - Lifetime CN202109454U (en) | 2011-04-15 | 2011-04-15 | Saturated steam generator with controllable steam pressure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213407A (en) * | 2011-04-15 | 2011-10-12 | 北京科技大学 | Device for generating saturated steam with controllable steam pressure |
-
2011
- 2011-04-15 CN CN2011201116295U patent/CN202109454U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213407A (en) * | 2011-04-15 | 2011-10-12 | 北京科技大学 | Device for generating saturated steam with controllable steam pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120111 Effective date of abandoning: 20130403 |
|
| RGAV | Abandon patent right to avoid regrant |