CN201593807U - Fuel oil nozzle - Google Patents
Fuel oil nozzle Download PDFInfo
- Publication number
- CN201593807U CN201593807U CN201020300394XU CN201020300394U CN201593807U CN 201593807 U CN201593807 U CN 201593807U CN 201020300394X U CN201020300394X U CN 201020300394XU CN 201020300394 U CN201020300394 U CN 201020300394U CN 201593807 U CN201593807 U CN 201593807U
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- CN
- China
- Prior art keywords
- fuel oil
- spout
- jet orifice
- nozzle
- swirler
- Prior art date
- 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.)
- Expired - Lifetime
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- Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
Abstract
The utility model relates to a fuel oil nozzle, which comprises a nozzle body, a jet orifice and a jet orifice sleeve, the keys are that a lock sheet is arranged between the nozzle body and the jet orifice, a spin chamber, a swirler, a spring and a support seat are orderly connected in the jet orifice, and are compacted and fixed by a check ring, and one end of the swirler is further provided with a tangential slot. The fuel oil nozzle is provided with the tangential slot on the swirler, the diameter of the jet orifice is small, the atmospheric effect of fuel oil and the distribution uniformity of fuel oil are excellent, the temperature field of an outlet of a combustion chamber is excellent, the combustion efficiency is high, carbon is not easy to deposit, threads are used to connect, the spring and the check ring are used to position, the dismounting, cleaning and maintenance are convenient, and the service life is long.
Description
Technical field
The utility model relates to a kind of nozzle, is specifically related to a kind of fuel nozzle of gas turbine combustors.
Background technology
Fuel nozzle is the important component part of gas turbine combustors, and the atomization of fuel nozzle, fuel oil distribution consistency degree etc. is the key factor that influences the combustor exit temperature field.Existing fuel nozzle nozzle diameter is big, and integral solder forms, and is non-dismountable, and stream is stopped up in easily carbon deposit coking, easy cleaning not, use a period of time after, the atomizing effect of fuel nozzle and fuel oil distribution consistency degree variation cause the efficiency of combustion step-down.In order to guarantee the performance requirement of gas-turbine unit, the fuel nozzle that must more renew has so just increased the working service cost of gas-turbine unit.
Summary of the invention
The purpose of this utility model provides the fuel nozzle of a kind of efficiency of combustion height, detachable, easy cleaning, long service life.Be used to overcome above-mentioned easy carbon deposit, difficult shortcoming of cleaning.
Fuel nozzle of the present utility model includes nozzle body, spout, spout cover, it is characterized in that: be provided with locking plate between described nozzle body and the spout; Be connected with spin chamber, cyclone, spring and supporting seat in the described spout in turn, be fixed by back-up ring; Described cyclone one end is provided with tangential slot.
In order to realize this purpose better, described spout puts and is provided with gas hole, and spout is provided with the spray orifice that diameter is the 1-5 millimeter.
Fuel nozzle of the present utility model is established tangential slot on cyclone, the little fuel atomization effect of nozzle diameter, fuel oil distribution consistency degree are good, and the combustor exit temperature field is good, the efficiency of combustion height is difficult for carbon deposit, and employing is threaded, spring and back-up ring location, dismounting, clean and maintenance convenience, long service life.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a spout structure enlarged drawing of the present utility model.
Among the figure: 1, nozzle body, 2, the spout cover, 3, locking plate, 4, spout, 5, cyclone, 6, spring, 7, annular filter screen, 8, the spring supporting seat, 9, back-up ring, 10, the spin chamber, 11, fuel feed hole, 12, gas hole, 13, spray orifice, 14, tangential slot.
The specific embodiment
Fuel nozzle of the present utility model is threaded with spout cover 2 and spout 4 by nozzle body 1 and forms.Be provided with the locking plate 3 of sealing and positioning action between nozzle body 1 and the spout 4, cyclone 5, spring 6 and supporting seat 8 are connected successively, are pressed abd fixed in the spout 4 by back-up ring 9.Annular filter screen 7 is fixed on the outer shroud of cyclone 5 and supporting seat 8.Cyclone 5 connects spray orifice 13 ends and has tangential slot 14, has the aperture on the spout 4 and be 1 millimeter spray orifice 13, has gas hole 12 on the spout cover 2.
During work, fuel oil enters from the oil-in of nozzle body 1, fuel feed hole 11 on supporting seat 8 enters in the spout 4, flow through screen pack 7 successively, tangential slot 14 enters in the spin chamber 10, and form one strong eddy flow, last under the promotion of inside and outside differential pressure, spray in the combustion chamber from spray orifice 13 with taper oil film form.
Claims (2)
1. a fuel nozzle includes nozzle body (1), spout (4), spout cover (2), it is characterized in that: be provided with locking plate (3) between described nozzle body (1) and the spout (4); Be connected with spin chamber (10), cyclone (5), spring (6) and supporting seat (8) in the described spout (4) in turn, be fixed by back-up ring (9); Described cyclone (5) one ends are provided with tangential slot (14).
2. according to the described fuel nozzle of claim 1, it is characterized in that: described spout cover (2) is provided with gas hole (12), and spout (4) is provided with the spray orifice that diameter is the 1-5 millimeter (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020300394XU CN201593807U (en) | 2010-01-11 | 2010-01-11 | Fuel oil nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020300394XU CN201593807U (en) | 2010-01-11 | 2010-01-11 | Fuel oil nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201593807U true CN201593807U (en) | 2010-09-29 |
Family
ID=42775874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020300394XU Expired - Lifetime CN201593807U (en) | 2010-01-11 | 2010-01-11 | Fuel oil nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201593807U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024347A (en) * | 2017-05-28 | 2017-08-08 | 西安成立航空制造有限公司 | A kind of tangential nozzle high-pressure test tool and its adjustment method |
| CN110701638A (en) * | 2019-08-30 | 2020-01-17 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Single-oil-way dual-purpose fuel nozzle |
| CN112247298A (en) * | 2020-12-23 | 2021-01-22 | 中国航发上海商用航空发动机制造有限责任公司 | Machining method of fuel oil spray hole and fuel oil spray nozzle |
| CN113464981A (en) * | 2021-07-09 | 2021-10-01 | 成立航空股份有限公司 | Air atomizing nozzle for enhancing atomizing effect |
| CN114543118A (en) * | 2022-02-21 | 2022-05-27 | 中国航发贵阳发动机设计研究所 | Centrifugal starting nozzle |
-
2010
- 2010-01-11 CN CN201020300394XU patent/CN201593807U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024347A (en) * | 2017-05-28 | 2017-08-08 | 西安成立航空制造有限公司 | A kind of tangential nozzle high-pressure test tool and its adjustment method |
| CN110701638A (en) * | 2019-08-30 | 2020-01-17 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Single-oil-way dual-purpose fuel nozzle |
| CN112247298A (en) * | 2020-12-23 | 2021-01-22 | 中国航发上海商用航空发动机制造有限责任公司 | Machining method of fuel oil spray hole and fuel oil spray nozzle |
| CN112247298B (en) * | 2020-12-23 | 2021-03-26 | 中国航发上海商用航空发动机制造有限责任公司 | Machining method of fuel oil spray hole and fuel oil spray nozzle |
| CN113464981A (en) * | 2021-07-09 | 2021-10-01 | 成立航空股份有限公司 | Air atomizing nozzle for enhancing atomizing effect |
| CN114543118A (en) * | 2022-02-21 | 2022-05-27 | 中国航发贵阳发动机设计研究所 | Centrifugal starting nozzle |
| CN114543118B (en) * | 2022-02-21 | 2023-04-25 | 中国航发贵阳发动机设计研究所 | Centrifugal starting nozzle |
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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 |
Granted publication date: 20100929 |
|
| CX01 | Expiry of patent term |