CN217131270U

CN217131270U - Low-nitrogen combustor fuel feeding assembly and oil gun head

Info

Publication number: CN217131270U
Application number: CN202220846852.2U
Authority: CN
Inventors: 慕辉峰
Original assignee: Zhengzhou Aoli Thermal Machinery Manufacturing Co ltd
Current assignee: Zhengzhou Aoli Thermal Machinery Manufacturing Co ltd
Priority date: 2022-04-13
Filing date: 2022-04-13
Publication date: 2022-08-05
Anticipated expiration: 2032-04-13

Abstract

The utility model discloses a low-nitrogen combustor fuel feeding assembly, the front end demountable installation of position sleeve has the nozzle, atomization component is installed to the inner chamber front end of position sleeve, oil pipe is installed to the rear end of position sleeve, oil pipe's inner chamber and the inner chamber intercommunication of position sleeve, the thimble is installed to the front end of thimble regulation pole, central through-hole has been seted up on the atomization component, the thimble suit is in atomization component's central through-hole, the central through-hole department of nozzle is provided with out the oil head, it has the through-hole to go out the oil head, and the rear end of through-hole is the bell mouth, the rear end of going out the oil head is located atomization component's central through-hole, the head of thimble is the cone that matches with the bell mouth, the rear end of thimble regulation pole is worn out from oil pipe's rear end, and the relative oil pipe axial displacement of thimble regulation pole, a low-nitrogen combustor oil gun head is still disclosed. The cross section area of the fuel outlet at the fuel outlet head can be adjusted through the ejector pin adjusting rod, so that the fuel quantity can be controlled, and the low-nitrogen combustor is more convenient to use.

Description

Low-nitrogen combustor fuel feeding assembly and oil gun head

Technical Field

The utility model relates to a low nitrogen combustor of cement trade, especially a low nitrogen combustor fuel feeding assembly and oil gun head.

Background

The fuel that the low nitrogen combustor that the cement trade was used adopted is the fuel, in order to guarantee the combustion effect of fuel, need atomize getting into the interior fuel of cement kiln, generally adopt pressurization atomizing, when air pressure is not enough, easily form oil droplet in oil gun nozzle department, the fuel atomization effect is not good, the fuel burning is insufficient, cause the wasting of resources, and current fuel feeding volume size, mainly control through the oil pressure, when the oil pressure is high, the fuel feeding volume is big, and when the oil pressure is at the bottom, the fuel feeding volume is little, it is difficult to control the fuel feeding volume size according to actual demand.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a low nitrogen combustor fuel feeding assembly and oil gun head.

The purpose of the utility model is realized through the following technical scheme: the utility model provides a low-nitrogen combustor fuel feeding unit, including atomization component, the position sleeve, nozzle and oil pipe, the front end demountable installation of position sleeve has the nozzle, atomization component is installed to the inner chamber front end of position sleeve, oil pipe is installed to the rear end of position sleeve, oil pipe's inner chamber and the inner chamber intercommunication of position sleeve, still include thimble and thimble regulation pole, the thimble is installed to the front end of thimble regulation pole, atomization component is last to have seted up central through-hole, the thimble suit is in atomization component's central through-hole, the central through-hole department of nozzle is provided with out the oil head, it has the through-hole to go out the oil head, and the rear end of through-hole is the bell mouth, the rear end of going out the oil head is located atomization component's central through-hole, the head of thimble is the cone-shaped head that matches with the bell mouth, the rear end of thimble is worn out from oil pipe's rear end, and thimble regulation pole relative oil pipe axial displacement.

Optionally, an oil pipe supporting sleeve is sleeved at the middle of the ejector pin adjusting rod, the oil pipe supporting sleeve is sleeved in the oil pipe, an oil through hole which is axially formed in the oil pipe supporting sleeve is formed in the oil pipe supporting sleeve, external threads are formed in the front end and the rear end of the ejector pin adjusting rod, the front end of the ejector pin adjusting rod is in threaded connection with the ejector pin, a threaded hole is formed in the rear end of the oil pipe, and the rear end of the ejector pin adjusting rod is in threaded fit with the threaded hole of the oil pipe.

Optionally, a sealing ring is further arranged in the threaded hole of the oil pipe.

Optionally, the nozzle is detachably mounted at the front end of the positioning sleeve through threads.

The utility model provides a low-nitrogen combustor grease gun head, includes outer barrel, tuber pipe, still includes above-mentioned low-nitrogen combustor fuel feeding subassembly, and outer barrel suit is on the position sleeve, and the front end of position sleeve is located the urceolus internally, forms the chamber of ventilating between outer barrel and the position sleeve, and the tuber pipe is installed to the rear end of position sleeve, and the inner chamber of tuber pipe and the inner chamber intercommunication in chamber of ventilating, and the front end of oil pipe is located the tuber pipe.

Optionally, the rear end of the locating sleeve is provided with a convex column a and a convex column b, the rear end face of the convex column a is connected with the front end face of the convex column b, the diameter of the convex column a is smaller than that of the convex column b, external threads are formed on the convex column a, the rear end of the outer barrel is in threaded connection with the convex column a, an annular groove is formed in the front end face of the convex column a, a plurality of vent holes are formed in the bottom of the annular groove, the vent holes extend towards the rear end face of the convex column b, and the inner cavity of the air pipe, the vent holes, the annular groove and the vent cavity form a vent passage.

Optionally, the number of the vent holes is multiple, and the multiple vent holes are uniformly distributed on the same circumference.

Optionally, the air inlet and the air outlet of the vent hole are located on the same circumference in axial projection, an included angle is formed between the extending direction of the vent hole and the axial lead, and after the circumference where the vent hole is located is unfolded, the included angle between the vent hole and the axial lead is 20 °.

Optionally, a connecting sleeve is arranged between the air pipe and the positioning sleeve, the front end of the connecting sleeve is connected with the convex column b, and the rear end of the connecting sleeve is connected with the air pipe.

Optionally, an air pipe support sleeve is sleeved in the air pipe, the air pipe support sleeve is sleeved on the oil pipe, and a through hole is axially formed in the air pipe support sleeve.

The utility model has the advantages of it is following: the utility model discloses a low nitrogen combustor fuel feeding subassembly and oil gun head, the front end of its thimble be the cone, and the rear end and the thimble of thimble adjust pole threaded connection, adjust the pole through the thimble, can adjust out the sectional area of the fuel export of oil head department to can be used to control the fuel volume size, thereby make the low nitrogen combustor use more convenient.

Drawings

FIG. 1 is a schematic structural diagram of the present invention

FIG. 2 is a schematic view of the structure of the positioning sleeve

FIG. 3 is a schematic view of the installation of the thimble

FIG. 4 is a schematic view of the installation of the rear end of the ejector pin adjusting rod

FIG. 5 is a schematic cross-sectional view of A-A in FIG. 2

FIG. 6 is an expanded view of the circumference of the vent hole

In the figure, 1-outer cylinder, 2-nozzle, 3-positioning sleeve, 4-connecting sleeve, 5-thimble, 6-atomization component, 7-oil pipe supporting sleeve, 8-oil pipe, 9-air pipe, 10-thimble adjusting rod, 11-air pipe supporting sleeve, 12-sealing ring, 21-oil outlet head, 31-annular groove, 32-vent hole, 33-convex column a, 34-convex column b, 21-conical hole and 51-conical head.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which the products of the present invention are conventionally placed in use, or the position or positional relationship which the skilled person conventionally understand, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the reference is made must have a specific position, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, a low-nitrogen burner oil gun head, including outer barrel 1, tuber pipe 9, still include low-nitrogen burner oil supply assembly, in this embodiment, as shown in fig. 3 and 4, low-nitrogen burner oil supply assembly includes atomizing component 6, position sleeve 3, nozzle 2 and oil pipe 8, atomizing component 6, position sleeve 3, nozzle 2 and oil pipe 8 are current structure, its specific structure is just not being repeated, in this embodiment, the front end demountable installation of position sleeve 3 has nozzle 2, preferably, the external screw thread has been seted up to the front end of position sleeve 3, and then the internal thread has been seted up on the nozzle 2, then realize the demountable connection through screw-thread fit between position sleeve 3 and the nozzle 2, after nozzle 2 damages, also can dismantle bad nozzle 2, it can to change new nozzle 2.

In this embodiment, as shown in fig. 2, 5 and 6, an atomizing assembly 6 is installed at the front end of an inner cavity of a positioning sleeve 3, an oil pipe 8 is installed at the rear end of the positioning sleeve 3, an inner cavity at the rear end of the positioning sleeve 3 is matched with the front end of the oil pipe 8, during assembly, the oil pipe 8 is sleeved at the rear end of the positioning sleeve 3, and then the oil pipe 8 is welded with the positioning sleeve 3, so that the positioning sleeve 3 and the oil pipe 8 can be installed, after the oil pipe 8 is installed, the inner cavity of the oil pipe 8 is communicated with the inner cavity of the positioning sleeve 3, after oil is supplied into the oil pipe 8, the oil can enter the inner cavity of the positioning sleeve 3 from the oil pipe 8, and since the atomizing assembly 6 is installed in the inner cavity of the positioning sleeve 3, the oil sprayed from the center of the nozzle 2 becomes atomized through the atomizing assembly 6, so that the utilization efficiency and the combustion rate of the oil can be achieved.

In this embodiment, the oil supply assembly of the low-nitrogen burner further includes a thimble 5 and a thimble adjusting rod 10, the thimble 5 is mounted at the front end of the thimble adjusting rod 10, the atomizing assembly 6 is provided with a central through hole, the thimble 5 is sleeved in the central through hole of the atomizing assembly 6, the thimble 5 and the atomizing assembly 6 are in a clearance fit relationship, the clearance is very small, therefore, no consideration is needed for the influence of the oil entering the nozzle 2 from the clearance on the oil combustion rate, even if a small amount of oil enters the nozzle 2 from the interval, the oil is at the center of the nozzle 2 and has a very small amount, which can be regarded as fog, the oil outlet head 21 is arranged at the central through hole of the nozzle 2, the oil outlet head 21 is provided with a through hole, the rear end of the through hole is a tapered hole 21, the rear end of the oil outlet head 21 is located in the central through hole of the atomizing assembly 6, so that a cavity is formed among the oil outlet head 21, the central through hole at the front end of the atomizing assembly 6 and the head of the thimble 5, after the oil is atomized, the atomized oil enters the cavity and is finally sprayed out through the oil outlet head 21, and in this embodiment, the head of the thimble 5 is a conical head 51 matched with the conical hole 21, the rear end of the thimble adjusting rod 10 penetrates out from the rear end of the oil pipe 8, and the thimble adjusting rod 10 can move axially relative to the oil pipe 8, and the position of the conical head 51 can be adjusted by adjusting the axial position of the thimble adjusting rod 10, so that the gap between the conical head 51 and the conical hole 21 can be changed, and the oil outlet amount of the oil outlet head 21 can be adjusted, in this embodiment, the front end and the rear end of the thimble adjusting rod 10 both have external threads, and the front end of the thimble adjusting rod 10 is in threaded connection with the thimble 5, the rear end of the oil pipe 8 is provided with a threaded hole, and the rear end of the thimble adjusting rod 10 is in threaded connection with the threaded hole of the oil pipe 8, in this embodiment, in order to avoid oil leakage at the connection between the thimble adjusting rod 10 and the rear end of the oil pipe 8, preferably, the threaded hole of the oil pipe 8 is designed as a pipe thread, further, a sealing ring 12 is further arranged in the threaded hole of the oil pipe 8, and the sealing ring 12 is used for sealing, so that oil leakage from the rear end of the oil pipe 8 is avoided, in the actual use process, the axial displacement of the thimble adjusting rod 10 is small, fine adjustment is performed, after the conical head 51 is matched with the conical hole 21, the gap between the conical hole 21 and the conical head 51 is zero, and at this time, oil is not sprayed out from the oil outlet head 21.

In this embodiment, the oil pipe 8 is longer, so the needle adjusting rod 10 is also longer, so the middle part of the needle adjusting rod 10 is sleeved with the oil pipe supporting sleeve 7, the oil pipe supporting sleeve 7 is sleeved in the oil pipe 8, and the oil pipe supporting sleeve 7 is provided with an oil through hole which is axially opened.

In this embodiment, as shown in fig. 1, outer barrel 1 suit is on position sleeve 3, and the front end of position sleeve 3 is located outer barrel 1, form the ventilation chamber between outer barrel 1 and the position sleeve 3, tuber pipe 9 is installed to the rear end of position sleeve 3, and the inner chamber of tuber pipe 9 and the inner chamber intercommunication in ventilation chamber, oil pipe 8's front end is located tuber pipe 9, in the combustion process of low-nitrogen combustor, the required partial oxygen of oil burning then enters into the ventilation intracavity through tuber pipe 9, then enters into the combustion area of nozzle 2 through the gap between nozzle 2 and the outer barrel 1 again, thereby guarantee the stable burning of oil.

In this embodiment, as shown in fig. 2, a boss a33 and a boss b34 are disposed at the rear end of the positioning sleeve 3, the rear end surface of the boss a33 is connected to the front end surface of the boss b34, and the diameter of the boss a33 is smaller than that of the boss b34, so that a step surface is formed between the boss a33 and the boss b34, an external thread is disposed on the boss a33, the rear end of the outer cylinder 1 is in threaded connection with the boss a33, further, a sealing gasket is mounted on the step surface of the boss a33 and the boss b34, and after the outer cylinder 1 and the boss a33 are in threaded connection, the connection between the outer cylinder 1 and the boss a33 is sealed by the sealing gasket.

In this embodiment, as shown in fig. 2, an annular groove 31 is opened on the front end surface of the convex pillar a33, a plurality of vent holes 32 are opened at the bottom of the annular groove 31, the vent holes 32 extend toward the rear end surface of the convex pillar b34, and the inner cavity of the air duct 9, the vent holes 32, the annular groove 31 and the vent cavities form a vent channel, further, the vent holes 32 are multiple, and the vent holes 32 are uniformly distributed on the same circumference, the air inlet holes and the air outlet holes of the vent holes 32 are located on the same circumference in axial projection, an included angle is formed between the extending direction of the vent holes 32 and the axial lead, and after the circumference where the vent holes 32 are located is expanded, the included angle between the vent holes 32 and the axial lead is 20 °, when air is supplied into the air duct 9, the air enters the vent cavity from the vent holes 32 and then enters the combustion area of the nozzle 2.

In this embodiment, as shown in fig. 1, a connection sleeve 4 is disposed between the air duct 9 and the positioning sleeve 3, the front end of the connection sleeve 4 is connected to the protrusion b34, the rear end of the connection sleeve 4 is connected to the air duct 9, the rear end of the protrusion b34 is provided with a step, the step is sleeved in the connection sleeve 4, and then the connection sleeve 4 and the positioning sleeve 3 are installed by welding, and similarly, the air duct 9 is sleeved at the other end of the connection sleeve 4, and then the connection between the air duct 9 and the connection sleeve 4 is achieved by welding.

In this embodiment, as shown in fig. 1, a duct support sleeve 11 is sleeved in the duct 9, the duct support sleeve 11 is sleeved on the oil pipe 8, a through hole is axially formed in the duct support sleeve 11, and the duct support sleeve 11 can support the oil pipe 8, so as to ensure the use reliability of the oil pipe 8.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a low nitrogen combustor fuel feeding unit, includes atomization component, position sleeve, nozzle and oil pipe, the front end demountable installation of position sleeve has the nozzle, install the inner chamber front end of position sleeve atomization component, oil pipe is installed to the rear end of position sleeve, oil pipe's inner chamber with the inner chamber intercommunication of position sleeve, its characterized in that: still include thimble and thimble regulation pole, install the front end of thimble regulation pole the thimble, the last central through-hole of having seted up of atomization component, the thimble suit is in atomization component's the central through-hole, the central through-hole department of nozzle is provided with out the oil head, it has the through-hole to go out the oil head, just the rear end of through-hole is the bell mouth, the rear end that goes out the oil head is located in atomization component's the central through-hole, the head of thimble be with the bell mouth that the bell mouth matches, the rear end of thimble regulation pole is followed oil pipe's rear end is worn out, just the relative oil pipe axial displacement of thimble regulation pole.

2. The low-nitrogen burner oil supply assembly according to claim 1, wherein: the middle part cover of thimble adjusting rod is equipped with oil pipe and supports the cover, oil pipe supports the cover suit in the oil pipe, just oil pipe supports to sheathe in and has the oil through hole that the axial was seted up, the front end and the rear end of thimble adjusting rod all have the external screw thread, just the front end of thimble adjusting rod with thimble threaded connection, oil pipe's rear end is provided with the screw hole, the rear end of thimble adjusting rod with oil pipe's screw hole screw-thread fit.

3. The low-nitrogen burner oil supply assembly according to claim 2, wherein: and a sealing ring is also arranged in the threaded hole of the oil pipe.

4. The low-nitrogen burner oil supply assembly according to claim 3, wherein: the nozzle is detachably arranged at the front end of the positioning sleeve through threads.

5. The utility model provides a low nitrogen combustor oil gun head which characterized in that: the low-nitrogen combustor oil supply assembly comprises an outer barrel body and an air pipe and further comprises the low-nitrogen combustor oil supply assembly according to any one of claims 1 to 4, the outer barrel body is sleeved on the positioning sleeve, the front end of the positioning sleeve is located in the outer barrel body, a ventilation cavity is formed between the outer barrel body and the positioning sleeve, the air pipe is installed at the rear end of the positioning sleeve, the inner cavity of the air pipe is communicated with the inner cavity of the ventilation cavity, and the front end of the oil pipe is located in the air pipe.

6. A low-nitrogen burner tip according to claim 5, wherein: the rear end of position sleeve is provided with projection an and projection b, projection an's rear end face with projection b's preceding terminal surface is connected, just projection an's diameter is less than projection b's diameter, the external screw thread has been seted up on the projection an, the rear end of outer barrel with projection a threaded connection, the ring channel has been seted up on projection a's the preceding terminal surface, a plurality of ventilation holes have been seted up to the bottom of ring channel, the ventilation hole to projection b's rear end face extends, just the inner chamber of tuber pipe the ventilation hole the ring channel the ventilation chamber forms ventilation channel.

7. A low-nitrogen burner tip according to claim 6, wherein: the ventilation hole is a plurality of, and a plurality of ventilation holes evenly distributed are on same circumference.

8. A low-nitrogen burner tip according to claim 7, wherein: the fresh air inlet and the exhaust vent in ventilation hole lie in same circumference on the axial projection, just contained angle has between the extending direction in ventilation hole and the axial lead, just the ventilation hole place circumference expandes the back, the ventilation hole is 20 with the contained angle of axial lead.

9. A low-nitrogen burner tip according to claim 8, wherein: the air pipe with be provided with the adapter sleeve between the position sleeve, the front end of adapter sleeve with projection b is connected, the rear end of adapter sleeve with the air pipe is connected.

10. A low-nitrogen burner tip according to claim 9, wherein: an air pipe supporting sleeve is sleeved in the air pipe and sleeved on the oil pipe, and a through hole is axially formed in the air pipe supporting sleeve.