CN202041398U - Dehumidifying antirust system for hydrostatic test of evaporator - Google Patents
Dehumidifying antirust system for hydrostatic test of evaporator Download PDFInfo
- Publication number
- CN202041398U CN202041398U CN2011200936808U CN201120093680U CN202041398U CN 202041398 U CN202041398 U CN 202041398U CN 2011200936808 U CN2011200936808 U CN 2011200936808U CN 201120093680 U CN201120093680 U CN 201120093680U CN 202041398 U CN202041398 U CN 202041398U
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- China
- Prior art keywords
- evaporator
- dehumidifying
- secondary side
- stop valve
- nitrogen
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- 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.)
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model relates to a dehumidifying antirust system for a hydrostatic test of an evaporator, which is provided with a secondary side manhole and two secondary side handholes and comprises a dehumidifying device and a nitrogen charge subsystem. The inside of the evaporator is dried through the dehumidifying device, and thus moisture in the evaporator is evaporated. Hot nitrogen is charged in the evaporator through the nitrogen charge subsystem, thereby replacing water vapour on the inner wall of the evaporator, further reducing water vapour density, enabling the whole hydrostatic test and the dehumidifying process to be finished in two days, not only achieving good dehumidifying effect, but also preventing oxidation and corrosion from generating in the evaporator after hydrostatic test, and having antirust effect.
Description
Technical field
The utility model relates to a kind of dehumidifying rust prevention system that is used for the test of evaporator hydraulic pressure.
Background technology
In existing evaporator hydraulic pressure test, used water is generally the A level water of RCCM standard code, yet, A level water belongs to neutral, and concentration of oxygen gas is higher, and steam generator secondary side inside surface and internals are carbon steel and low alloy steel, therefore, very easily with the oxygen generation iron rust that reacts; In addition, usually need after the hydraulic testing is finished again, carrying out draining vacuumizes, fills hot nitrogen cycle displacement, vacuumizes the requirement that circulation four to six times like this could reach humidity≤30% substantially again, this dehumidification process is veryer long, usually needed just can finish in eight to ten days, and the oxidation corrosion of inner generation in this process, be difficult to remove in the later stage.In view of the foregoing, press for a kind of novel dehumidifying rust prevention system of research and development now, to satisfy the needs of evaporator hydraulic pressure test.
The utility model content
In order to solve the problem that above-mentioned prior art exists, the utility model aims to provide a kind of dehumidifying rust prevention system that is used for the test of evaporator hydraulic pressure, with the device that effectively avoids evaporating oxidation and rusting taking place after the hydraulic testing, and shorten the whole hydraulic testing and dehumidification process greatly, raises the efficiency.
A kind of dehumidifying rust prevention system that is used for the test of evaporator hydraulic pressure described in the utility model, described evaporator surface is provided with a secondary side manhole and two secondary side hand holes, and described dehumidifying rust prevention system comprises that a dehydrating unit and fills the nitrogen subsystem,
Described dehydrating unit surface is provided with one and handles air intake, dry air outlet, a regeneration air intake and soft air outlet, and described processing air intake connects frock by one and is connected with the secondary side manhole of described evaporator, and described dry air outlet is connected frock by a threeway and is connected with two secondary side hand holes of described evaporator respectively with two;
The described nitrogen subsystem that fills comprises a heating arrangement and a portable nitrogen low temperature storage tank that is connected with a secondary side hand hole of described evaporator successively by flexible pipe.
At the above-mentioned dehumidifying rust prevention system that is used for the test of evaporator hydraulic pressure, described fill one first stop valve, a gas-holder and one second stop valve between the inlet end that the nitrogen subsystem also comprises the endpiece that is connected to described portable nitrogen low temperature storage tank in turn and heating arrangement and be connected the endpiece of described heating arrangement and the secondary side hand hole of evaporator between one the 3rd stop valve.
At the above-mentioned dehumidifying rust prevention system that is used for the test of evaporator hydraulic pressure, the endpiece of described portable nitrogen low temperature storage tank also is connected to the secondary side hand hole of described evaporator by one the 4th stop valve.
At the above-mentioned dehumidifying rust prevention system that is used for the test of evaporator hydraulic pressure, be connected a reduction valve, a safety valve and a tensimeter successively between the inlet end of described second stop valve and heating arrangement, be connected a tensimeter and a safety valve successively between the endpiece of described heating arrangement and the 3rd stop valve, be connected a tensimeter between the link of described the 3rd stop valve and the 4th stop valve and the secondary side hand hole of evaporator.
At the above-mentioned dehumidifying rust prevention system that is used for the test of evaporator hydraulic pressure, the surface of described dehydrating unit also is provided with a liquid crystal display.
Owing to adopted above-mentioned technical solution, the utility model is by dehydrating unit drying to be carried out in evaporator inside, the evaporator internal moisture is evaporated in a large number, and fill hot nitrogen to evaporator inside by filling the nitrogen subsystem, water vapor to the evaporator inwall is replaced, thereby further reduce the mode of water vapor concentration, the whole hydraulic testing and dehumidification process just can be finished in two days greatly, not only can reach good effect on moisture extraction, can also make evaporator inside after the hydraulic testing, avoid producing new oxidation and corrosion, thereby play antirust effect.
Description of drawings
Fig. 1 is a kind of scheme of installation that is used for the dehumidifying rust prevention system dehydrating unit of evaporator hydraulic pressure test of the utility model;
Fig. 2 is a kind of structural representation that is used for the dehumidifying rust prevention system dehydrating unit of evaporator hydraulic pressure test of the utility model;
Fig. 3 is the fundamental diagram that a kind of dehumidifying rust prevention system that is used for the test of evaporator hydraulic pressure of the utility model fills the nitrogen subsystem.
Embodiment
Below in conjunction with accompanying drawing, specific embodiment of the utility model is elaborated.
See also Fig. 1 to Fig. 3, the surface of evaporator 2 is provided with a secondary side manhole 21 and two secondary side hand holes 22.The utility model, promptly a kind of dehumidifying rust prevention system that is used for the test of evaporator hydraulic pressure comprises that a dehydrating unit 1 and fills the nitrogen subsystem, wherein,
Fill the nitrogen subsystem and comprise a heating arrangement 5 and a portable nitrogen low temperature storage tank 4 that is connected with a secondary side hand hole 22 of evaporator 2 successively by flexible pipe, and connect one first stop valve 61, a gas-holder 7 and one second stop valve 62 between the inlet end of the endpiece of portable nitrogen low temperature storage tank 4 and heating arrangement 5 successively, the secondary side hand hole 22 of the endpiece of heating arrangement 5 and evaporator 2 is connected one the 3rd stop valve 63, and the endpiece of portable nitrogen low temperature storage tank 4 also is connected to the secondary side hand hole 22 of evaporator 2 by one the 4th stop valve 64.
Also be connected a reduction valve 8, a safety valve 9 and a tensimeter 10 successively between second stop valve 62 in the utility model and the inlet end of heating arrangement 5, also be connected a tensimeter 10 between the link that also is connected a tensimeter 10 and a safety valve 9, the three stop valves 63 and the 4th stop valve 64 between the endpiece of heating arrangement 5 and the 3rd stop valve 63 successively and the secondary side hand hole 22 of evaporator 2.
The model that dehydrating unit 1 in the utility model can adopt Meng Te company to produce is the dehumidifier of ML1100; The endpiece of portable nitrogen low temperature storage tank 4 and the flexible pipe between first stop valve 61 adopt the pressure-bearing flexible pipe, and the flexible pipe between the safety valve 9 at the 3rd stop valve 63 and heating arrangement 5 endpiece places adopts flanged low pressure metal heat-preserving hose.
Principle of work of the present utility model is as follows:
Fill the drying nitrogen that the nitrogen subsystem is used for charging into to evaporator 2 inside heat, thereby the water vapor of evaporator 2 inwalls is replaced, further reduce water vapor concentration; Fill the nitrogen subsystem by first to fourth stop valve 61 to 64, make and fill the nitrogen process and be divided into two operating modes, be that operating mode one enters evaporator 2 for the nitrogen in the portable nitrogen low temperature storage tank 4 behind heating arrangement 5, thereby provide hot nitrogen to evaporator 2, operating mode two is directly delivered to evaporator 2 for the nitrogen in the portable nitrogen low temperature storage tank 4, thereby provides normal temperature nitrogen to evaporator 2; Generally speaking, evaporator 2 is being vacuumized back (can realize) by vacuum pump being connected on the evaporator pump water seal head, need enable two pairs of nitrogen of operating mode heats, about 180 ℃ of heated nitrogen temperature, the highlyest must not surpass 200 ℃, through vacuumize repeatedly and fill nitrogen after sampling detect inner air humidity, can close operating mode two after meeting the demands, enable operating mode one, thereby evaporator 2 inner pressure decline the carrying out nitrogen that produce owing to the temperature reduction are replenished.
In sum, the utlity model has following advantage:
1, efficient height, drying time is short, and the dehumidifying rust-proof effect is good;
2, automaticity height reduces the human error operational risk.
Below embodiment has been described in detail the utility model in conjunction with the accompanying drawings, and those skilled in the art can make the many variations example to the utility model according to the above description.Thereby some details among the embodiment should not constitute qualification of the present utility model, and the scope that the utility model will define with appended claims is as protection domain of the present utility model.
Claims (5)
1. one kind is used for the dehumidifying rust prevention system that evaporator hydraulic pressure is tested, and described evaporator surface is provided with a secondary side manhole and two secondary side hand holes, it is characterized in that, described dehumidifying rust prevention system comprises that a dehydrating unit and fills the nitrogen subsystem,
Described dehydrating unit surface is provided with one and handles air intake, dry air outlet, a regeneration air intake and soft air outlet, and described processing air intake connects frock by one and is connected with the secondary side manhole of described evaporator, and described dry air outlet is connected frock by a threeway and is connected with two secondary side hand holes of described evaporator respectively with two;
The described nitrogen subsystem that fills comprises a heating arrangement and a portable nitrogen low temperature storage tank that is connected with a secondary side hand hole of described evaporator successively by flexible pipe.
2. the dehumidifying rust prevention system that is used for the test of evaporator hydraulic pressure according to claim 1, it is characterized in that, described fill one first stop valve, a gas-holder and one second stop valve between the inlet end that the nitrogen subsystem also comprises the endpiece that is connected to described portable nitrogen low temperature storage tank in turn and heating arrangement and be connected the endpiece of described heating arrangement and the secondary side hand hole of evaporator between one the 3rd stop valve.
3. the dehumidifying rust prevention system that is used for the test of evaporator hydraulic pressure according to claim 2 is characterized in that the endpiece of described portable nitrogen low temperature storage tank also is connected to the secondary side hand hole of described evaporator by one the 4th stop valve.
4. the dehumidifying rust prevention system that is used for the test of evaporator hydraulic pressure according to claim 3, it is characterized in that, be connected a reduction valve, a safety valve and a tensimeter successively between the inlet end of described second stop valve and heating arrangement, be connected a tensimeter and a safety valve successively between the endpiece of described heating arrangement and the 3rd stop valve, be connected a tensimeter between the link of described the 3rd stop valve and the 4th stop valve and the secondary side hand hole of evaporator.
5. the dehumidifying rust prevention system that is used for the test of evaporator hydraulic pressure according to claim 1 is characterized in that the surface of described dehydrating unit also is provided with a liquid crystal display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200936808U CN202041398U (en) | 2011-04-01 | 2011-04-01 | Dehumidifying antirust system for hydrostatic test of evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200936808U CN202041398U (en) | 2011-04-01 | 2011-04-01 | Dehumidifying antirust system for hydrostatic test of evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202041398U true CN202041398U (en) | 2011-11-16 |
Family
ID=44968836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200936808U Expired - Lifetime CN202041398U (en) | 2011-04-01 | 2011-04-01 | Dehumidifying antirust system for hydrostatic test of evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202041398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758161A (en) * | 2016-02-25 | 2016-07-13 | 苏州热工研究院有限公司 | Drying system and method for tube plate on secondary side of steam generator |
-
2011
- 2011-04-01 CN CN2011200936808U patent/CN202041398U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758161A (en) * | 2016-02-25 | 2016-07-13 | 苏州热工研究院有限公司 | Drying system and method for tube plate on secondary side of steam generator |
| CN105758161B (en) * | 2016-02-25 | 2019-01-08 | 苏州热工研究院有限公司 | A kind of drying system and furnace drying method for steam generator secondary side tube sheet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111116 |