CN2912818Y - Mounting structure of steam inlet pipe and water inlet pipe for steam atomization nozzle - Google Patents
Mounting structure of steam inlet pipe and water inlet pipe for steam atomization nozzle Download PDFInfo
- Publication number
- CN2912818Y CN2912818Y CN 200620072000 CN200620072000U CN2912818Y CN 2912818 Y CN2912818 Y CN 2912818Y CN 200620072000 CN200620072000 CN 200620072000 CN 200620072000 U CN200620072000 U CN 200620072000U CN 2912818 Y CN2912818 Y CN 2912818Y
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- China
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- inlet pipe
- steam
- steam inlet
- water inlet
- nozzle
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Abstract
The utility model relates to the installing structure of a steam inlet pipe and a water inlet tube of a steam atomizing nozzle, which comprises a water inlet tube, a steam inlet pipe, and a nozzle bearing; wherein, the water inlet tube are flexibly connected with the nozzle bearing, the steam inlet pipe are connected with the nozzle bearing, thereby making the steam inlet pipe produce smaller radial displacement in a expansion caused by heat. The steam inlet pipe is provided with shoulder grids and is structurally characterized in that the outer wall of the steam inlet pipe is provided with a ring groove and that a snap ring is blocked in the ring groove. The water inlet tube is flexibly connected with the feed-water cavity of a flange and the nozzle bearing, a filler chamber forming between the outer wall of the water inlet tube and the lug boss of the flange and the nozzle bearing is filled with filler, the filler chamber forming one side of the outer wall of the steam inlet pipe, the flange, and the shoulder grids on the steam inlet pipe are also filled with filler, the other side of the shoulder grid on the steam inlet pipe leans on the lug boss of the nozzle bearing. The utility model effectively eliminates the influence of different bending distortions of the steam inlet pipe and the water inlet tube caused by the thermal stress produced by the heating expansion of the steam inlet pipe, thereby prolonging the service life of the steam inlet pipe and the water inlet tube greatly. .
Description
Technical field:
The utility model relates to the atomizer in order to the reduction vapor (steam) temperature that uses on the steam cooling decompressor on the steam supply pipeline, particularly this device.
Background technology:
At present, the department of steam is used in electric power, petrochemical industry, food, papermaking etc., because of it uses the operating mode difference of the concrete equipment of steam, numerical value to the temperature and pressure of steam requires also different, when so steam supply department uses the department steam supply of steam to these, the steam cooling decompressor must be installed on the steam supply pipeline, and the reducing of steam pressure realized by pressure-reducing valve, and the reduction of vapor (steam) temperature relies in the steam pipework water spray and realizes.In steam pipework, spray water and finish by atomizer, atomizer is one of critical component in the steam cooling decompressor, the outlet temperature of steam cooling decompressor is controlled by atomizer, the quality of atomizer performance and the quality of quality directly affect the work quality and the economic benefit of steam cooling decompressor, and poor performance, low-quality nozzle can cause a large amount of energy wastes.As the atomizer that uses on the present domestic steam cooling decompressor all is atomizing nozzle, its structure is: comprise bearing and sparge pipe, sparge pipe is fixed on the bearing, bearing is fixed on the tube wall outside of steam pipe, the structure of sparge pipe is for processing some apertures on the tube wall of an elongated water pipe, sparge pipe inserts in the steam pipe, there be the aperture of water on sparge pipe of certain pressure to be sprayed directly on in the steam in the steam pipe, thereby reduce the temperature of steam, the atomizing effect of this atomizing nozzle is poor, the water droplet volume of ejection is big, even have the part water droplet and in steam, also be not able to do in time to evaporate fully on the inwall of just having fallen steam pipe, on the one hand, must send into sewer or water tank to these water of also not bringing into play heat-absorbing action fully to it by drain water piping and drain valve, on the other hand, because of the vapor (steam) temperature in the steam pipe does not also drop to the required temperature with vapour unit, must strengthen the cooling water input amount, this will certainly further increase hydrophobic workload, causes bigger energy waste.The application of applicant's separate case good, the energy savings of a kind of atomizing effect and can effectively reduce the steam atomization nozzle of the vapor (steam) temperature in the steam pipe, this steam atomization nozzle contains water inlet pipe, nozzle bearing, also comprise steam inlet pipe, water inlet pipe is linked to each other by nozzle with steam inlet pipe, but, because temperature differs greatly between steam inlet pipe and the water inlet pipe, the swell increment that produces in the process of work is also different, link to each other with water inlet pipe owing to steam inlet pipe again, so, steam inlet pipe and water inlet pipe can produce flexural deformation, and tubing also can damage because of repeatedly the distortion generation is tired.
The utility model content:
The purpose of this utility model is to provide a kind of can eliminate the influence of steam inlet pipe because of the thermal stress that expanded by heating produced, the steam inlet pipe of the steam atomization nozzle of the long service life of steam inlet pipe and water inlet pipe and the mounting structure of water inlet pipe
Solution of the present utility model is: contain water inlet pipe, steam inlet pipe, nozzle bearing, water inlet pipe and nozzle bearing flexibly connect, and steam inlet pipe is connected with nozzle bearing, guarantee that steam inlet pipe can produce a spot of radial displacement when expanded by heating.
Have the shoulder lattice on the steam inlet pipe.
Nozzle bearing is made up of nozzle base and flange, and flange is fixed on the nozzle base.
The intake antrum of water inlet pipe and flange and nozzle base flexibly connect, and have filled filler in the formed filler chamber of boss of the outer wall of water inlet pipe and flange, nozzle base.
Filled filler in the formed filler chamber in one side of the shoulder lattice on the outer wall of steam inlet pipe and flange, steam inlet pipe, the another side of the shoulder lattice of steam inlet pipe is against on the boss of nozzle base.
The filler of filling in the formed filler chamber in one side of the shoulder lattice on the outer wall of steam inlet pipe and flange, steam inlet pipe is two circle polytetrafluoroethylene packings and three circle asbestos packings, and the filler of filling in the outer wall and the flange of steam inlet pipe, the formed filler chamber in a side of shoulder lattice on the steam inlet pipe is six to enclose asbestos packings.
The structure of the shoulder lattice on the steam inlet pipe is: on the outer wall of steam inlet pipe annular groove is arranged, snap in snap ring in annular groove.
After adopting the utility model, eliminated the different influences that bring of the steam inlet pipe that thermal stress caused that produce because of the steam inlet pipe expanded by heating effectively, prolonged the service life of steam inlet pipe and water inlet pipe greatly with the flexural deformation of water inlet pipe.
Description of drawings:
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the I portion enlarged drawing of the utility model embodiment;
Fig. 3 is the II portion enlarged drawing of the utility model embodiment;
Fig. 4 is the A-A profile of the utility model embodiment;
Fig. 5 is the B-B cutaway view of the utility model embodiment.
Among the figure: the 1--flange; The 2--control valve; The 3--stop valve; The 4--check-valves; The 5--control valve; The 6--flange; The 7--annular water tank; The inner chamber of 8--nozzle; The 9--hole; The 10--nozzle bore; The inner chamber of 11--water inlet pipe; The inner chamber of 12--steam inlet pipe; The 13--base; The 14--nozzle base; The 15--steam inlet pipe; The 16--snap ring; The 17--steam pipe; The 18--water inlet pipe; The 19--nozzle; The 20--nozzle cage; The 21--asbestos packing; The 22--polytetrafluoroethylene packing; The 23--asbestos packing; 24--admission chamber; The 25--intake antrum.
The specific embodiment:
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail:
Contain water inlet pipe 18, steam inlet pipe 15, nozzle bearing, nozzle bearing is by nozzle base 14 and flange 1,6 form, flange 1,6 are fixed on the nozzle base 14, water inlet pipe 18 flexibly connects with the intake antrum 25 and the nozzle base 14 of flange 6, outer wall and flange 6 at water inlet pipe 18, filled filler in the formed filler chamber of the boss of nozzle base 14, filler is two circle polytetrafluoroethylene packings 22 and three circle asbestos packings 23, on the outer wall of steam inlet pipe 15, annular groove is arranged, in annular groove, snap in snap ring 16, outer wall and flange 1 at steam inlet pipe 15, filled filler in the formed filler chamber in one side of the snap ring 16 on the steam inlet pipe 15, filler is six circle asbestos packings, and the another side of the snap ring 16 on the steam inlet pipe 15 is against on the boss of nozzle base 14.
Use the structure of the steam atomization nozzle of embodiment of the present utility model to be: to contain base 13, nozzle base 14 is fixed on the base 13, base 13 is fixed on the outer wall of steam pipe 17, steam inlet pipe 15 is connected with the admission chamber 24 of flange 1, fixedly connected with an end of nozzle 19 in the lower end of steam inlet pipe 15, the other end of nozzle 19 has nozzle bore 10, there is annular water tank 7 end of nozzle 19, annular water tank 79 interlinks with nozzle bore 10 through the hole, nozzle cage 20 has also been installed in the end of nozzle 19, the lower end of water inlet pipe 18 is fixed on the nozzle cage 20, and the inner chamber 11 and the annular water tank 7 of water inlet pipe 18 interlink.
The course of work and the operation principle of steam atomization nozzle are as follows:
The high steam that steam supply side provides is adjusted to the required force value of present embodiment through control valve 2, to reach the proper proportion of control steam and cooling water, then enters the admission chamber 24 of flange 1, the inner chamber 12 of steam inlet pipe 15, arrives the inner chamber 8 of nozzle 19.Cooling water enters the intake antrum 25 of flange 6 by stop valve 3, check-valves 4 and control valve 5, enters the annular water tank 7 of the end of nozzle 19 again through the inner chamber 11 of water inlet pipe 18, and control valve 5 is for the water yield of controlling the intake antrum 25 that enters flange 6 and pressure.Steam is by nozzle bore 10 time, the flow velocity of steam increases, the pressure of steam descends to some extent, when the force value of steam drops to the force value of cooling water when following, cooling water in the annular water tank 7 is drawn onto in the nozzle bore 10 by hole 9, the steam water interface that formation is made up of steam and cooling water, steam water interface sprays from nozzle bore 10, and when entering in the steam pipe 17 that steam pressure is lower than 0.5Mpa, the volume of steam expands rapidly, water droplet around the nozzle bore 10 is scraped, form spray, the steam of coming from pressure-reducing valve and the steam water interface of ejection from nozzle bore 10 mix mutually, because globule volume is little, big with the steam contact area, heat exchanging process is fast, and water becomes steam soon, reaches the purpose that reduces vapor (steam) temperature, cooling water has also become steam simultaneously, has increased quantity of steam.
Because temperature differs greatly between steam inlet pipe 15 and the water inlet pipe 18, the swell increment that produces in the process of work is also different, links to each other with water inlet pipe 18 owing to steam inlet pipe 15 again, so, steam inlet pipe 15 can produce flexural deformation with water inlet pipe 18, and tubing also can damage because of repeatedly the distortion generation is tired.The steam inlet pipe 15 of present embodiment and water inlet pipe 18 have solved this problem effectively with the connected mode of nozzle base 14.Because, in the outer wall of steam inlet pipe 15 and flange 1, nozzle base 14 formed filler chamber, bigger above the suffered thrust of six circle asbestos packings 21 than following, the thrust minimum that the asbestos packing 21 of the bottom is suffered, also has the certain deformation surplus, that is to say that the asbestos packing 21 of the bottom has certain displacement space.Snap ring 16 on the steam inlet pipe 15 has been eliminated the front, rear, left and right of steam inlet pipe 15 and has been moved downward totally 5 frees degree, and steam inlet pipe 15 can only upwards compress asbestos packing 21, and produces radial displacement.In steam inlet pipe 15, do not feed steam, steam inlet pipe 15 does not generate heat, do not produce thermal expansion, the radial position of steam inlet pipe 15 is fixed, and feeds steam in steam inlet pipe 15, and thermal expansion takes place steam inlet pipe 15, when thermal expansion takes place in steam inlet pipe 15, even when nozzle 19 and water inlet pipe 18 can not produce the expansion displacement that displacement offsets steam inlet pipe 15, a spot of displacement was upwards done in the also compressible asbestos packing 21 of snap ring 16 that is fixed on the steam inlet pipe 15, be discharged into and produce thermal stress when thermal expansions take place steam pipe 15.Simultaneously, in the outer wall of water inlet pipe 18 and flange 6, nozzle base 14 formed filler chamber, two circle polytetrafluoroethylene packings 22 and three circle asbestos packings 23 have been filled, make water inlet pipe 18 suffered friction reduce 2/3rds, water inlet pipe 18 can be expanded and corresponding a spot of free displacement, the generation thermal stress in the time of being discharged into steam pipe 15 generation thermal expansions equally done with steam inlet pipe 15.
Claims (7)
1, the mounting structure of the steam inlet pipe of steam atomization nozzle and water inlet pipe, contain water inlet pipe, steam inlet pipe, nozzle bearing, it is characterized in that water inlet pipe and nozzle bearing flexibly connect, steam inlet pipe is connected with nozzle bearing, guarantees that steam inlet pipe can produce a spot of radial displacement when expanded by heating.
2, the mounting structure of the steam inlet pipe of steam atomization nozzle according to claim 1 and water inlet pipe is characterized in that having on the steam inlet pipe shoulder lattice.
3, the mounting structure of the steam inlet pipe of steam atomization nozzle according to claim 2 and water inlet pipe is characterized in that nozzle bearing is made up of nozzle base and flange, and flange is fixed on the nozzle base.
4, the mounting structure of the steam inlet pipe of steam atomization nozzle according to claim 3 and water inlet pipe, it is characterized in that the intake antrum of water inlet pipe and flange and nozzle base flexibly connect, in the formed filler chamber of boss of the outer wall of water inlet pipe and flange, nozzle base, filled filler.
5, the mounting structure of the steam inlet pipe of steam atomization nozzle according to claim 4 and water inlet pipe, it is characterized in that having filled filler in the formed filler chamber in a side of the shoulder lattice on the outer wall of steam inlet pipe and flange, steam inlet pipe, the another side of the shoulder lattice of steam inlet pipe is against on the boss of nozzle base.
6, the mounting structure of the steam inlet pipe of steam atomization nozzle according to claim 5 and water inlet pipe, it is characterized in that the filler of filling in the formed filler chamber in a side of the shoulder lattice on the outer wall of steam inlet pipe and flange, steam inlet pipe is two circle polytetrafluoroethylene packings and three circle asbestos packings, the filler of filling in the outer wall and the flange of steam inlet pipe, the formed filler chamber in a side of shoulder lattice on the steam inlet pipe is six to enclose asbestos packings.
7, the mounting structure of the steam inlet pipe of steam atomization nozzle according to claim 6 and water inlet pipe is characterized in that the structure of the shoulder lattice on the steam inlet pipe is: on the outer wall of steam inlet pipe annular groove is arranged, snap in snap ring in annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620072000 CN2912818Y (en) | 2006-06-02 | 2006-06-02 | Mounting structure of steam inlet pipe and water inlet pipe for steam atomization nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620072000 CN2912818Y (en) | 2006-06-02 | 2006-06-02 | Mounting structure of steam inlet pipe and water inlet pipe for steam atomization nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2912818Y true CN2912818Y (en) | 2007-06-20 |
Family
ID=38167419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620072000 Expired - Fee Related CN2912818Y (en) | 2006-06-02 | 2006-06-02 | Mounting structure of steam inlet pipe and water inlet pipe for steam atomization nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2912818Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509029A (en) * | 2016-01-25 | 2016-04-20 | 无锡海力自控工程有限公司 | Nozzle component of steam-assisted desuperheater |
| CN113710958A (en) * | 2019-04-17 | 2021-11-26 | 费希尔控制产品国际有限公司 | Desuperheater and spray nozzle thereof |
-
2006
- 2006-06-02 CN CN 200620072000 patent/CN2912818Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509029A (en) * | 2016-01-25 | 2016-04-20 | 无锡海力自控工程有限公司 | Nozzle component of steam-assisted desuperheater |
| CN113710958A (en) * | 2019-04-17 | 2021-11-26 | 费希尔控制产品国际有限公司 | Desuperheater and spray nozzle thereof |
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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: 20070620 Termination date: 20110602 |