CN201008811Y - Adjustable nozzle of steam pipe line - Google Patents
Adjustable nozzle of steam pipe line Download PDFInfo
- Publication number
- CN201008811Y CN201008811Y CNU2007200337237U CN200720033723U CN201008811Y CN 201008811 Y CN201008811 Y CN 201008811Y CN U2007200337237 U CNU2007200337237 U CN U2007200337237U CN 200720033723 U CN200720033723 U CN 200720033723U CN 201008811 Y CN201008811 Y CN 201008811Y
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- nozzle
- piston rod
- aperture
- spray nozzle
- eyelets
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Abstract
A steam line adjustable spray nozzle comprises a nozzle holder, wherein the spray nozzle is fixed on the nozzle holder, and a plurality of spray eyelets are arranged on the side edge of the spray nozzle. The lower end of the spray nozzle is closed, and the upper end of the spray nozzle is communicated with the cavity of a valve cap. The spray nozzle also comprises a piston rod which penetrates through the cavity of the valve cap and is in sliding fit with the cavity of the spray head. Blind holes are axially arranged on the piston rod, and a plurality of eyelets are arranged on the piston rod corresponding to the bottom of the blind holes and the upper part of the spray nozzle. The number of the eyelets on the piston rod is in direct proportion functional relationship with the number of spray eyelets on the spray nozzle. The spray nozzle further comprises an orifice sleeve which is arranged in the cavity of the valve cap. The piston rod is provided with a piston block which is in sliding fit with the cavity of the orifice sleeve, and a plurality of eyelets are arranged on the side edge of the orifice sleeve. The number of the eyelets on the orifice sleeve is in direct proportion functional relationship with the number of eyelets on the piston rod and the number of spray eyelets on the spray nozzle. The utility model has the advantages of good atomization effects, absence of water hammer, small water discharging volume, long service life, good cooling performance and a simple structure.
Description
Technical field:
The utility model relates to the reducing-and-cooling plant of steam pipework, particularly the nozzle of steam pipework reducing-and-cooling plant.
Background technology:
The desuperheat process of reducing-and-cooling plant be by nozzle to the overheat steam jetting water of lowering the temperature, cooling water absorbs heat by evaporation, thereby superheat steam temperature is reduced.Existing nozzle mostly is fixed nozzle, and the aperture stationary arrangement on the fixed nozzle can not be adjusted.As: flute shape fixed nozzle or ring-type fixed nozzle.Flute shape fixed nozzle is to get out the water spray aperture on hollow pipe, and annular nozzle is to get out many water spray apertures after the insides of pipes of pipe in tubule that bends or the similar Wen processes annular groove.Flute shape fixed nozzle or ring-type fixed nozzle all are fixedly mounted on the steam pipework, and the part of the band water spray aperture on flute shape fixed nozzle or the ring-type fixed nozzle is arranged in steam pipework.When needs are lowered the temperature to superheated steam, regulate the water yield of cooling water by control valve after, be transported to fixed nozzle again, the cooling water that regulates sprays from the water spray aperture of fixed nozzle, after superheated steam in the steam pipework mixes, reach the purpose that reduces superheat steam temperature.No matter be annular nozzle or flute shape fixed nozzle, the quantity of water spray aperture is certain, can not adjust.When superheated steam was lowered the temperature processing, cooling water can spray from these changeless water spray apertures.When the flow of the superheated steam of handling if need lower the temperature changed, corresponding variation also can take place in the consumption of the cooling water that needs.Because the quantity of water spray aperture is certain, therefore, in case the cooling water consumption changes, the speed that cooling water ejects from the water spray aperture can change.The velocity variations of cooling water can influence the effect of steam cooling.If cooling water is fast slack-off, cooling water then can come out from the water spray aperture in trickling, rather than with spray regime (vaporific) ejection, it is bad to make that cooling water mixes with superheated steam, and hydrophobic amount strengthens, and cooling-down effect is poor.If the speed of cooling water is fast, cooling water then with at a high speed, vaporificly from the water spray aperture, spray, good in short time to the cooling-down effect of superheated steam, but long operational time, the water spray aperture is easy to wear, and the wearing and tearing of water spray aperture strengthen the aperture of water spray aperture, and the result causes cooling water to reduce through the jet velocity of water spray aperture, atomizing effect worsens, and cooling-down effect is poorer.
The utility model content:
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of simple in structure, easy to adjust, the steam pipework adjustable type nozzle of good cooling effect.
Solution of the present utility model is: contain nozzle carrier, nozzle is fixed on the nozzle carrier, some water spray apertures are arranged on the side of nozzle, the lower port sealing of nozzle, the upper port of nozzle and the inner chamber of valve gap lead to, and also contain piston rod, and piston rod passes the inner chamber of valve gap and the inner chamber of nozzle is slidingly matched, piston rod blind hole axially arranged, on piston rod, some apertures are arranged with blind hole bottom and corresponding position, nozzle top.
The number of the water spray aperture functional relation that is directly proportional on aperture number on the piston rod and the nozzle.
Also contain throat bushing, throat bushing is installed in the inner chamber of valve gap, and piston block is arranged on the piston rod, and piston block and throat bushing inner chamber are slidingly matched, and some apertures are arranged on the side of throat bushing.Because throat bushing has been arranged, when the cooling water pressure is too high, it is carried out throttling, prevented the generation of cavitation effectively.
The number of the water spray aperture functional relation that is directly proportional on aperture number on aperture number on the throat bushing and the piston rod, the nozzle.
Adopt the utility model, can allow the superheat steam flow in the steam pipework to change in the larger context, because the number of the water spray aperture functional relation that is directly proportional on the aperture number on the piston rod and the nozzle, and aperture number on the throat bushing and the aperture number on the piston rod, the number functional relation that is directly proportional of water spray aperture on the nozzle, guaranteed flow by the cooling water of the aperture that is shown in an open position on the piston rod, functional relation is directly proportional with the flow of cooling water by the aperture that is shown in an open position on the nozzle, when the superheat steam flow in the steam pipework is big, the position of regulating piston bar moves up, increase the number of the water spray aperture that is shown in an open position on the nozzle, superheat steam flow in steam pipework hour, the position of regulating piston bar moves down, reduce the number of the water spray aperture that is shown in an open position on the nozzle, make when spraying the water spray aperture of cooling water from nozzle and can be ejected into by the requirement of desin speed on the superheated steam, atomizing effect is good, no water attack, hydrophobic amount is few, reduce the device temperature alternate stress greatly, service life of equipment prolongs, steam quality height after the cooling, temperature reduction performance is superior.When superheat steam flow changes, the adjustment of adjusting and the water spray aperture on the nozzle of the cooling water yield all moves up and down and realizes that instantaneous can finishing synchronously making the cooling adjusting sensitiveer by controlling same piston rod, do not have hysteresis, simplified the structure of cooling system simultaneously yet.
Description of drawings:
Fig. 1 is in the structural representation of closed condition for the water spray aperture of the nozzle of utility model embodiment;
Fig. 2 is in the structural representation of open mode for the water spray aperture of the nozzle of utility model embodiment.
Among the figure: the 1--piston block; The inner chamber of 2--throat bushing; The 3--throat bushing; The inner chamber of 4--valve gap; The 5--valve gap; The 6--piston rod; The 7--aperture; 8--cooling water water inlet; The 9--aperture; The upper port of 10--nozzle; The 11--nozzle carrier; The 12--blind hole; The 13--nozzle; The 14--aperture of spraying water; The inner chamber of 15--nozzle; The lower port of 16--nozzle.
The specific embodiment:
Fig. 1 is in the structural representation of closed condition for the water spray aperture of the nozzle of utility model embodiment.Contain nozzle carrier 11, nozzle 13 is fixed on the nozzle carrier 11, some water spray apertures 14 are arranged on the side of nozzle 13, lower port 16 sealings of nozzle 13, the upper end 10 of nozzle 13 links to each other with throat bushing 3, throat bushing 3 places the inner chamber 4 of valve gap 5, the inner chamber 15 of nozzle 13 interlinks with the inner chamber 2 of throat bushing 3, the inner chamber 2 of throat bushing 3 interlinks by the inner chamber 4 of the aperture on throat bushing 3 sides 7 with valve gap 5, cooling water water inlet 8 is arranged on the valve gap 5, cooling water water inlet 8 leads to the inner chamber 4 of valve gap 5, and cooling water water inlet 8 places of valve gap 5 link to each other with ring flange, and the inner chamber 4 of valve gap 5 leads to the inner chamber of ring flange, also contain piston rod 6, piston rod 6 is slidingly matched with the inner chamber 15 of nozzle 13, piston rod 6 blind hole 12 axially arranged, on piston rod 6, some apertures 9 are arranged with blind hole 12 bottoms and 10 corresponding positions, nozzle 13 upper ends.The number of water spray aperture 14 functional relation that is directly proportional on the number of the aperture 9 on the piston rod 6 and the nozzle 13.Piston block 1 is arranged on the piston rod 6, and piston block 1 is slidingly matched with the inner chamber 2 of throat bushing 3, and some apertures 7 are arranged on the side of throat bushing 3.The number of water spray aperture 14 functional relation that is directly proportional on the number of the aperture 9 on the number of the aperture 7 on the throat bushing 3 and the piston rod 6, the nozzle 13.Piston rod 6 among the figure is in lowest positions, and the aperture 9 on the piston rod 6 is by nozzle 13 upper ends, 10 shutoff, and water spray aperture 14 is by piston rod 6 shutoff on the nozzle 13, and nozzle 13 can not spray cooling water in steam pipework lowers the temperature to superheated steam.
Fig. 2 is in the structural representation of open mode for the water spray aperture of the nozzle of utility model embodiment.Piston rod 6 is upwards mentioned, water spray aperture 14 is opened in succession on aperture 9 on the piston rod 6 and the nozzle 13, cooling water water inlet 8 connects by the inner chamber 2 of the aperture on the throat bushing 37 with throat bushing 3, the inner chamber 2 of throat bushing 3 connects by the blind hole on aperture on the piston rod 69 and the piston rod 6 12, cooling water enters the inner chamber 15 of nozzle 13, and cooling water sprays cooling water by water spray aperture 14 on the nozzle 13 in steam pipework lowers the temperature to superheated steam.Because throat bushing 3 has been arranged, when the cooling water pressure is too high, it is carried out throttling, prevented the generation of cavitation effectively.Flow velocity height according to superheated steam in the steam pipework, the size of the distance that upwards promotes by control piston bar 6 is controlled water spray aperture 14 and spray what of cooling water in steam pipework, guarantees to press when cooling water spray from the water spray aperture 14 of nozzle 13 constant speed injection.
Claims (4)
1. steam pipework adjustable type nozzle, contain nozzle carrier, nozzle is fixed on the nozzle carrier, some water spray apertures are arranged on the side of nozzle, the lower port sealing of nozzle, the upper port of nozzle and the inner chamber of valve gap lead to, it is characterized in that also containing piston rod, piston rod passes the inner chamber of valve gap and the inner chamber of nozzle is slidingly matched, piston rod blind hole axially arranged, on piston rod, some apertures are arranged with blind hole bottom and corresponding position, nozzle top.
2. steam pipework adjustable type nozzle according to claim 1, the number that it is characterized in that water spray aperture on aperture number and the nozzle on the piston rod functional relation that is directly proportional.
3. steam pipework adjustable type nozzle according to claim 2, it is characterized in that also containing throat bushing, throat bushing is installed in the inner chamber of valve gap, and piston block is arranged on the piston rod, piston block and throat bushing inner chamber are slidingly matched, and some apertures are arranged on the side of throat bushing; Because throat bushing has been arranged, when the cooling water pressure is too high, it is carried out throttling, prevented the generation of cavitation effectively.
4. steam pipework adjustable type nozzle according to claim 3, the number that it is characterized in that water spray aperture on the aperture number, nozzle on aperture number and the piston rod on the throat bushing functional relation that is directly proportional.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200337237U CN201008811Y (en) | 2007-01-19 | 2007-01-19 | Adjustable nozzle of steam pipe line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200337237U CN201008811Y (en) | 2007-01-19 | 2007-01-19 | Adjustable nozzle of steam pipe line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201008811Y true CN201008811Y (en) | 2008-01-23 |
Family
ID=39043743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200337237U Expired - Fee Related CN201008811Y (en) | 2007-01-19 | 2007-01-19 | Adjustable nozzle of steam pipe line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201008811Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907290A (en) * | 2010-08-20 | 2010-12-08 | 江苏火电电力设备制造有限公司 | Overall regulation and water spraying atomization steam temperature reducing device |
| CN101746060B (en) * | 2008-12-19 | 2012-07-04 | 上海博班精密机械有限公司 | Novel steam spray nozzle used for steam thermal contraction box |
| CN107477246A (en) * | 2017-10-16 | 2017-12-15 | 吴忠仪表有限责任公司 | A kind of easy-maintaining spray desuperheating valve of high-performance |
| CN113008586A (en) * | 2021-02-14 | 2021-06-22 | 梅晓靖 | Detection device for reducing temperature and pressure |
-
2007
- 2007-01-19 CN CNU2007200337237U patent/CN201008811Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101746060B (en) * | 2008-12-19 | 2012-07-04 | 上海博班精密机械有限公司 | Novel steam spray nozzle used for steam thermal contraction box |
| CN101907290A (en) * | 2010-08-20 | 2010-12-08 | 江苏火电电力设备制造有限公司 | Overall regulation and water spraying atomization steam temperature reducing device |
| CN107477246A (en) * | 2017-10-16 | 2017-12-15 | 吴忠仪表有限责任公司 | A kind of easy-maintaining spray desuperheating valve of high-performance |
| CN113008586A (en) * | 2021-02-14 | 2021-06-22 | 梅晓靖 | Detection device for reducing temperature and pressure |
| CN113008586B (en) * | 2021-02-14 | 2023-07-14 | 国能河北龙山发电有限责任公司 | Detection device for temperature and pressure reduction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU HONGZHONG VALVE CO., LTD. Free format text: FORMER OWNER: STEAM-POWER EQUIPMENT MANUFACTURE CO., LTD., JIANGSU Effective date: 20140228 |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140228 Address after: The Haihe River in Jiangsu province Yancheng City Sheyang County town of 224005 Hehai neighborhood Patentee after: Jiangsu hung hung valve industry Co., Ltd. Address before: 224005, No. 285, West Ring Road, Yancheng City, Jiangsu Patentee before: Steam-Power Equipment Manufacture Co., Ltd., Jiangsu |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080123 Termination date: 20160119 |
|
| EXPY | Termination of patent right or utility model |