150 fuel nozzle structure

Abstract

The utility model relates to the field of fuel nozzles, in particular to a 150 fuel nozzle structure which comprises a nozzle body, a liquid channel is formed in the nozzle body, a swirler is mounted at the fuel outlet end of the liquid channel, and a filter screen is mounted at the fuel inlet end of the liquid channel. The fuel oil can be sprayed into the combustion chamber in a fogdrop shape, so that the combustion effect of the fuel oil is better, the combustion efficiency and the combustion stability are improved, meanwhile, the energy utilization rate is increased, and the energy consumption is reduced.

Description

Technical Field

[0001] The present application relates to the field of fuel nozzles, and more particularly to a 150 fuel nozzle structure. Background Art

[0002] The fuel nozzle is an important part of the combustion chamber of a gas turbine engine, which can accurately deliver fuel to the combustion chamber of the engine for combustion, thereby realizing the operation of the engine. A traditional fuel nozzle often includes a nozzle body, in which a liquid channel is opened, one end of the liquid channel faces the combustion chamber, and the other end is used to connect to the oil pipe, and the oil inlet end of the liquid channel is covered with a filter.

[0003] When in use, the fuel nozzle is installed on the engine and connected to the oil pipe. The fuel in the oil pipe can be sprayed into the combustion chamber through the fuel nozzle to achieve normal operation of the engine. The filter can filter the fuel to reduce the possibility of impurities in the fuel clogging the liquid channel in the fuel nozzle.

[0004] However, during actual use, the liquid beam injected into the combustion chamber by the fuel nozzle is relatively concentrated, which makes the fuel combustion efficiency in the combustion chamber low and the combustion effect unstable, thereby affecting the working efficiency of the engine and consuming a lot of energy. Utility Model Content

[0005] In order to improve the combustion efficiency after the fuel is injected into the combustion chamber, improve the combustion stability, and reduce energy consumption, the present application provides a 150 fuel nozzle structure

[0006] The 150 fuel nozzle structure provided in this application adopts the following technical solution:

[0007] A 150 fuel nozzle structure comprises a nozzle body, wherein a liquid channel is provided inside the nozzle body, a swirler is installed at the oil outlet end of the liquid channel, and a filter is installed at the oil inlet end of the liquid channel.

[0008] By adopting the above technical solution, when in use, the fuel enters the liquid channel after being filtered by the filter, and then is sprayed out through the swirler; the fuel nozzle can spray the fuel into the combustion chamber in the form of droplets, so that the fuel combustion effect is better, the combustion efficiency and combustion stability are improved, and the energy utilization rate is increased and the energy consumption is reduced; the filter can filter the fuel entering the nozzle body, reduce the possibility of some impurities blocking the liquid channel or the swirler, and increase the use effect and service life.

[0009] Optionally, the nozzle body is provided with an installation cavity with an open structure at one end, the liquid channel is connected to the installation cavity, the swirler is embedded in the oil outlet end of the liquid channel from the inner side of the nozzle body, a core rod and a push spring are installed in the installation cavity, the push spring is used to push the core rod against the swirler, and an abutment seat is detachably installed at the open end of the installation cavity, the abutment seat is used to close the opening of the installation cavity and press the push spring at the same time.

[0010] By adopting the above technical solution, during installation, the cyclone is first installed at the oil outlet end of the liquid channel from the inner side of the installation cavity, and then the core rod is inserted into the installation cavity and abutted against the cyclone. Next, the push spring is installed and the abutment seat is tightened at the same time; so that the abutment seat can push the push spring to compress, thereby maintaining support for the core rod and the cyclone under the tension of the push spring, ensuring the stability of the installation of the cyclone, and facilitating the disassembly and maintenance of the overall internal structure of the fuel nozzle, thereby improving the use effect.

[0011] Optionally, the core rod is formed with a partition, and the outer wall of the partition is coaxially sleeved with a sealing ring, and the sealing ring abuts against the side wall of the installation cavity.

[0012] By adopting the above technical solution, the partition and the sealing ring can divide the internal space of the installation cavity, reduce the possibility of mutual interference between the fuel and the push spring, and further increase the use effect and service life.

[0013] Optionally, the outer wall of the partition portion is provided with a mounting ring groove coaxial with the partition portion, and the sealing ring is clamped in the mounting ring groove.

[0014] By adopting the above technical solution, the mounting ring groove can increase the stability of the sealing ring when it is installed on the partition, and increase the stability in use.

[0015] Optionally, the oil inlet end of the liquid channel is arranged on the side of the nozzle body and is arranged as a plurality of oil inlets, the filter is arranged as a cylindrical structure and is coaxially sleeved on the nozzle body, and the filter covers the plurality of oil inlets.

[0016] By adopting the above technical solution, during installation, the filter only needs to be sleeved on the nozzle body to cover multiple oil inlets, making the filter installation process more convenient.

[0017] Optionally, a positioning groove is formed on the outer wall of the nozzle body. The positioning groove is annular in structure and is coaxially arranged with the nozzle body. The filter screen is accommodated in the positioning groove.

[0018] By adopting the above technical solution, the provided positioning groove has a better positioning effect on the installation of the filter, so that the filter is more stable when in use and the possibility of the filter falling off is reduced.

[0019] Optionally, the outer wall of the nozzle body is formed with an abutment flange coaxial with itself, and a clamping ring is sleeved and threadedly connected to the outer wall of the nozzle body. The gap between the abutment flange and the clamping ring is set as a positioning groove, and the filter is clamped between the abutment flange and the clamping ring.

[0020] By adopting the above technical solution, during installation, the filter is first sleeved on the nozzle body so that the filter abuts against the abutting flange, and then the clamping ring is installed and the filter is clamped, thereby achieving installation of the filter on the nozzle body and better stability of the filter installation.

[0021] Optionally, a connecting plate is formed on the outer wall of the nozzle body, and the connecting plate is provided with a plurality of connecting holes.

[0022] By adopting the above technical solution, during installation, screws can be inserted into the connecting holes and then the connecting plate can be connected to the oil pipe or the combustion chamber shell, so that no additional holes need to be opened during the assembly process, and the installation process of the nozzle body is relatively convenient.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The fuel enters the liquid channel after being filtered by the filter, and then is sprayed out through the cyclone; the fuel nozzle can spray the fuel into the combustion chamber in the form of droplets, making the fuel combustion effect better, improving the combustion efficiency and combustion stability, while increasing energy utilization and reducing energy consumption;

[0025] 2. The abutment seat can push the push spring to compress, so that under the tension of the push spring, the core rod and the swirler are supported to ensure the stability of the swirler installation, and at the same time facilitate the disassembly and maintenance of the overall internal structure of the fuel nozzle to improve the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a cross-sectional view of a 150 fuel nozzle structure according to Example 1 of the present application;

[0027] Figure 2 It is a cross-sectional view of a 150 fuel nozzle structure according to Example 2 of the present application.

[0028] Explanation of the reference numerals: 1. Nozzle body; 11. Liquid channel; 111. Oil inlet; 12. Mounting cavity; 13. Abutment flange; 14. Positioning groove; 2. Swirl; 3. Filter screen; 4. Core rod; 41. Partition; 411. Mounting ring groove; 42. Sealing ring; 5. Push spring; 6. Abutment seat; 7. Clamping ring; 8. Connecting plate; 81. Connecting hole. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-2 This application is described in further detail.

[0030] The embodiment of the present application discloses a 150 fuel nozzle structure.

[0031] Embodiment 1:

[0032] Reference Figure 1 The fuel nozzle structure 150 includes a nozzle body 1, a liquid channel 11 is provided inside the nozzle body 1, one end of the liquid channel 11 extends to the top of the nozzle body 1, and the end is set as the oil outlet end; the other end extends to the side of the nozzle body 1, and the end is set as the oil inlet end. The oil inlet end of the liquid channel 11 is provided with a plurality of oil inlet ports 111, and the nozzle body 1 is provided with a cylindrical filter screen 3, and the filter screen 3 covers the plurality of oil inlet ports 111.

[0033] Reference Figure 1 At the same time, the nozzle body 1 is detachably mounted with a swirler 2, which is mounted at the oil outlet of the liquid channel 11. The swirler 2 includes a capping body and a plurality of capillary spray holes provided in the capping body, and the capping body is detachably mounted at the oil outlet of the liquid channel 11. The fuel sprayed from the nozzle body 1 through the capillary spray holes in the swirler 2 can be in a droplet state, and preferably, the spray angle is set to 150 degrees.

[0034] When in use, the fuel can enter the liquid channel 11 from the fuel inlet 111 after being filtered by the filter 3, and then be sprayed out through the swirler 2. The fuel nozzle can spray the fuel into the combustion chamber in the form of droplets, so that the fuel combustion effect is better, the combustion efficiency and combustion stability are improved, and the energy utilization rate is increased and the energy consumption is reduced.

[0035] In addition, the filter screen 3 can filter the fuel entering the nozzle body 1, reducing the possibility of some impurities blocking the liquid channel 11 or the cyclone 2, thereby increasing the use effect and service life.

[0036] Reference Figure 1 The nozzle body 1 is provided with a mounting cavity 12 which opens downward, and the liquid channel 11 is connected with the mounting cavity 12, so that the cyclone 2 can be inserted into the oil outlet end of the liquid channel 11 from the mounting cavity 12. At the same time, a core rod 4, a push spring 5 and an abutment seat 6 are also installed in the mounting cavity 12. The core rod 4 extends vertically, and the upper end of the core rod 4 is supported on the cyclone 2, and a partition 41 is formed on the lower end. The partition 41 abuts against the inner wall of the mounting cavity 12, and divides the mounting cavity 12 into an upper and lower cavity, so that the liquid channel 11 is connected to the upper cavity, and the push spring 5 is located in the lower cavity. The push spring 5 extends vertically and the upper end abuts against the core rod 4, and the abutment seat 6 is detachably fixed to the opening edge of the mounting cavity 12 by means of threaded connection or clamping, and the abutment seat 6 abuts against the lower end of the push spring 5.

[0037] Reference Figure 1At the same time, the side wall of the partition 41 is provided with a coaxial mounting groove 411, and the partition 41 is coaxially sleeved with a sealing ring 42, which is embedded in the mounting groove 411 and abuts against the inner wall of the mounting cavity 12. The sealing ring 42 is made of elastic material, such as rubber or silicone.

[0038] During installation, the swirler 2 is first installed on the top of the nozzle body 1 from the inside of the installation cavity 12, and then the core rod 4 is inserted into the installation cavity 12 and abutted against the swirler 2, and then the push spring 5 is installed and the abutment seat 6 is tightened. The abutment seat 6 can push the push spring 5 to compress, so that the core rod 4 and the swirler 2 are supported under the tension of the push spring 5, ensuring the stability of the installation of the swirler 2, and facilitating the disassembly and maintenance of the overall internal structure of the fuel nozzle, thereby improving the use effect.

[0039] Furthermore, the provided partition 41 and the sealing ring 42 can reduce the possibility of mutual interference between the fuel and the push spring 5, and further increase the use effect and service life.

[0040] Reference Figure 1 The outer wall of the nozzle body 1 is provided with a positioning groove 14, which is an annular structure and is coaxially arranged with the nozzle body 1. Multiple oil inlets 111 are arranged inside the positioning groove 14. At this time, the filter 3 is made of woven metal wire, is arranged as an open-loop structure and can be elastically deformed, and the filter 3 is matched in the positioning groove 14. The positioning groove 14 has a better limiting effect on the installation of the filter 3, increases the stability of the filter 3 when in use, reduces the possibility of the filter 3 being offset or falling off from the nozzle body 1, and ensures a better filtering effect on the fuel.

[0041] Reference Figure 1 The outer wall of the nozzle body 1 is formed with a connecting plate 8, and the connecting plate 8 is provided with a plurality of connecting holes 81. During installation, screws can be inserted through the connecting holes 81 and then the connecting plate 8 can be connected to the oil pipe or the combustion chamber housing, so that no additional holes need to be opened during the assembly process, and the installation process of the nozzle body 1 is relatively convenient.

[0042] The implementation principle of embodiment 1 is as follows: when in use, the fuel enters the liquid channel 11 and then is sprayed out through the swirler 2. The fuel nozzle can spray the fuel into the combustion chamber in the form of droplets, so that the fuel combustion effect is better, the combustion efficiency and combustion stability are improved, and the energy utilization rate is increased and the energy consumption is reduced.

[0043] Embodiment 2:

[0044] Reference Figure 2The difference between this embodiment and the first embodiment is that the filter screen 3 is set as a closed loop structure. At this time, the outer wall of the nozzle body 1 is formed with a coaxial abutment flange 13, the outer wall of the nozzle body 1 is sleeved and threaded with a clamping ring 7, and the gap between the abutment flange 13 and the clamping ring 7 is set as a positioning groove 14. The filter screen 3 is installed in the positioning groove 14, so that the filter screen 3 is clamped between the abutment flange 13 and the clamping ring 7.

[0045] The implementation principle of Example 2 is as follows: during installation, the filter screen 3 is first sleeved on the nozzle body 1 so that the filter screen 3 abuts against the abutting flange 13, and then the clamping ring 7 is installed to clamp the filter screen 3. Thus, the filter screen 3 is installed on the nozzle body 1, and the stability of the filter screen 3 installation is better.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A 150 fuel nozzle structure, characterized in that: It comprises a nozzle body (1), wherein a liquid channel (11) is provided inside the nozzle body (1), a swirler (2) is installed at the oil outlet end of the liquid channel (11), and a filter screen (3) is installed at the oil inlet end of the liquid channel (11).

2. The fuel nozzle structure 150 according to claim 1 is characterized in that: The nozzle body (1) is provided with a mounting cavity (12) with an open structure at one end, the liquid channel (11) is in communication with the mounting cavity (12), the cyclone (2) is embedded in the oil outlet end of the liquid channel (11) from the inner side of the nozzle body (1), a core rod (4) and a push spring (5) are installed in the mounting cavity (12), the push spring (5) is used to push the core rod (4) against the cyclone (2), and an abutment seat (6) is detachably installed at the open end of the mounting cavity (12), the abutment seat (6) is used to close the opening of the mounting cavity (12) and simultaneously abut against the push spring (5).

3. The fuel nozzle structure 150 according to claim 2 is characterized in that: The core rod (4) is formed with a partition portion (41), the outer wall of the partition portion (41) is coaxially sleeved with a sealing ring (42), and the sealing ring (42) abuts against the side wall of the installation cavity (12).

4. The fuel nozzle structure 150 according to claim 3 is characterized in that: The outer wall of the partition portion (41) is provided with a mounting annular groove (411) coaxial with the partition portion (41), and the sealing ring (42) is clamped in the mounting annular groove (411).

5. The fuel nozzle structure 150 according to claim 1 is characterized in that: The oil inlet end of the liquid channel (11) is arranged on the side of the nozzle body (1) and is provided as a plurality of oil inlet ports (111); the filter screen (3) is provided as a cylindrical structure and is coaxially sleeved on the nozzle body (1); the filter screen (3) covers the plurality of oil inlet ports (111).

6. The fuel nozzle structure 150 according to claim 5 is characterized in that: The outer wall of the nozzle body (1) is provided with a positioning groove (14), the positioning groove (14) is annular in structure and is coaxially arranged with the nozzle body (1), and the filter screen (3) is accommodated in the positioning groove (14).

7. The fuel nozzle structure 150 according to claim 6 is characterized in that: The outer wall of the nozzle body (1) is formed with an abutment flange (13) coaxial with the nozzle body, and a clamping ring (7) is sleeved and threadedly connected to the outer wall of the nozzle body (1), and the gap between the abutment flange (13) and the clamping ring (7) is provided as a positioning groove (14), and the filter screen (3) is clamped between the abutment flange (13) and the clamping ring (7).

8. The fuel nozzle structure 150 according to claim 1 is characterized in that: A connecting plate (8) is formed on the outer wall of the nozzle body (1), and the connecting plate (8) is provided with a plurality of connecting holes (81).

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