Gas nozzle

Abstract

The utility model provides a gas nozzle which comprises a first pipe body, a second pipe body, a third pipe body, a spray head assembly and an end cover. A high-pressure air inlet is formed in the side wall of the first pipe body; a fuel gas inlet is formed in the side wall of the second pipe body; the nozzle assembly comprises a nozzle outer sleeve and a nozzle inner core, a nozzle cavity is formed in the nozzle outer sleeve, the nozzle inner core is located in the nozzle cavity, a nozzle hole penetrating through the two ends is formed in the center of the nozzle outer sleeve, and a plurality of air grooves from the edge to the middle are further formed in the end face, away from the third pipe body, of the nozzle outer sleeve. A cylindrical base hole and a V-shaped spray hole penetrating through the two ends are formed in the middle of the spray head inner core; an end cover hole which penetrates through the two ends and corresponds to the spray hole is formed in the center of the end cover. When the nozzle is blocked, only the end cover needs to be screwed off, then the spray head assembly needs to be screwed off, the spray head assembly is cleaned, time and labor are saved, strength is low, maintenance is easy and convenient, and conversion efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of gas combustion, and in particular to a gas nozzle. Background Technology

[0002] Gas fuel refers to fuel that uses combustible fuel as an energy source and directly converts chemical energy into non-fixed heat energy through combustion. The nozzle is the core component of gas combustion, as its quality directly affects the efficiency of converting chemical energy into heat energy. This invention aims to improve the efficiency of chemical energy conversion into heat energy. For example, when using a liquefied petroleum gas (LPG) stove in winter, some liquid often remains unburned when the gas is almost empty, causing carbon buildup on the bottom of the pot. People often use hot water to heat the gas cylinder to reduce this loss. Utility Model Content

[0003] This invention proposes a gas nozzle that solves the problems of low conversion efficiency and pollution in existing gas nozzles.

[0004] The technical solution of this utility model is implemented as follows:

[0005] A gas nozzle includes a first tube body, a second tube body, a third tube body, a nozzle assembly, and an end cap. The first tube body has a high-pressure air inlet and a temperature sensor mounting port on its side wall. The second tube body is threaded to one end of the first tube body, and has a gas inlet on its side wall. The third tube body is threaded to the end of the second tube body near the first tube body, and is located inside the first tube body. The nozzle assembly includes a nozzle outer sleeve and a nozzle inner core. The nozzle outer sleeve is threaded to the end of the third tube body away from the second tube body. A nozzle cavity is formed inside the nozzle outer sleeve, and the nozzle inner core is located inside the nozzle cavity. A nozzle hole penetrating both ends is formed at the center of the nozzle outer sleeve. Several air grooves extending from the edge to the center are also formed on the end face of the nozzle outer sleeve away from the third tube body. The head end of the nozzle inner core is fitted into the nozzle hole, and a nozzle hole penetrating both ends is formed in the middle of the nozzle inner core. The end cap is threaded to the end of the first tube body away from the second tube body, and an end cap hole penetrating both ends and corresponding to the nozzle hole is formed at the center of the end cap.

[0006] Preferably, a heating device is installed in the end of the second tube that is away from the first tube.

[0007] Preferably, the heating device includes an electric heating rod, which is fixed to a mounting head. The outer side of the mounting head is provided with an external thread I, and the mounting head is threadedly connected to the end of the second tube away from the first tube.

[0008] Preferably, a temperature sensor is installed inside the temperature sensor mounting port.

[0009] Preferably, the number of air ducts is six, and each air duct is tangent to the nozzle hole.

[0010] Preferably, the depth of the air duct gradually decreases from the edge to the center.

[0011] Preferably, the nozzle inner core includes a cylindrical section, and the circumferential side of the cylindrical section is provided with an external thread II, which is threadedly connected to the third tube body.

[0012] Preferably, the inner core of the nozzle is provided with two symmetrical wrench faces on its side for easy wrench insertion.

[0013] Preferably, the outer side of the first tube or the second tube is provided with an outer quadrangular portion, an outer hexagonal portion, or an outer octagonal portion that facilitates rotation; the outer side of the nozzle sleeve is provided with an outer quadrangular portion, an outer hexagonal portion, or an outer octagonal portion that facilitates rotation; and the outer side of the end cap is provided with an outer hexagonal portion or an outer octagonal portion that facilitates rotation.

[0014] Preferably, the end face of the end cap away from the first tube body is a plane or has a spherical groove; the end face of the end cap near the first tube body has a threaded mounting slot, and the end cap is installed on the end of the first tube body away from the second tube body through the threaded mounting slot, and the end face of the nozzle sleeve near the end cap is pressed against the inner end face of the threaded mounting slot.

[0015] Preferably, the first pipe is a straight pipe or a right-angle bend, and the second and third pipes are both straight pipes or right-angle bends.

[0016] The beneficial effects of this utility model are as follows: When the gas nozzle of this utility model is clogged, simply unscrew the end cap and then unscrew the nozzle assembly to clean the nozzle assembly. This saves time and effort, is highly efficient, has low strength, and is simple and convenient to maintain. It also improves the efficiency of converting chemical energy into heat energy and reduces environmental pollution. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a cross-sectional view of the present invention;

[0019] Figure 2 for Figure 1 Exploded view;

[0020] Figure 3This is a top view of the end cap of this utility model;

[0021] Figure 4 This is a schematic diagram of the nozzle outer sleeve in this utility model;

[0022] Figure 5 This is a schematic diagram of the nozzle's inner core structure;

[0023] The reference numerals in the diagram are as follows: 1-First tube body, 2-Second tube body, 3-Third tube body, 4-Nozzle assembly, 5-End cap, 6-Heating device, 7-Temperature sensor, 11-High-pressure air inlet, 21-Gas inlet, 22-Temperature sensor mounting port, 41-Nozzle outer sleeve, 42-Nozzle inner core, 43-Nozzle cavity, 44-Gas nozzle hole, 45-Air groove, 46-V-shaped nozzle, 47-Wrench face, 51-Spherical groove, 52-End cap hole, 61-Electric heating rod, 62-In mounting head, 63 External thread I, 53-External octagonal part, 54-Threaded mounting slot hole, 421-Cylindrical section, 422-Cylindrical base hole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figure 1-5A gas nozzle includes a first tube body 1, a second tube body 2, a third tube body 3, a nozzle assembly 4, and an end cap 5. A high-pressure air inlet 11 is provided on the side wall of the first tube body 1. The second tube body 2 is threaded into one end of the first tube body 1 (specifically, one end of the second tube body 2 may have an external thread, and the corresponding end of the first tube body 1 may have a matching internal thread). A feed inlet 21 and a temperature sensor mounting port 22 are provided on the side wall of the second tube body 2. The third tube body 3 is threaded into the end of the second tube body 2 closest to the first tube body 1 (specifically, one end of the third tube body 3 may have an external thread, and the corresponding end of the second tube body 1 may have a matching internal thread). The third tube body 3 is located inside the first tube body 1. The nozzle assembly 4 includes a nozzle outer sleeve 41 and a nozzle inner core 42. 1. The first tube 1 is threaded to the end of the third tube 3 away from the second tube 2. The nozzle sleeve 41 has a nozzle cavity 43 inside. The nozzle core 42 is located in the nozzle cavity 43. The nozzle sleeve 41 has a nozzle hole 44 that passes through both ends in the center. The nozzle sleeve 41 also has several air grooves 45 from the edge to the center on the end face away from the third tube 3. The head end of the nozzle core 42 is fitted in the nozzle hole 44. The nozzle core 42 has a nozzle hole 422 and 46 that passes through both ends in the middle. The nozzle core 42 is cylindrical base hole + "V" shaped nozzle hole. The end cap 5 is threaded to the end of the first tube 1 away from the second tube 2 (specifically, the end cap 5 can be provided with an internal thread and the corresponding end of the second tube 2 can be provided with a matching external thread). The end cap 5 has an end cap hole 52 that passes through both ends and corresponds to the nozzle hole in the center.

[0026] The feed inlet 21 is connected to the feed pipe to provide fuel gas. The air inlet 11 is connected to the high-pressure air blower. After the high-pressure air enters from the air inlet 11, it is blown from the air duct 45 to the middle of the nozzle outer sleeve end face 41, that is, the root of the flame, to provide the nozzle with primary air for combustion (i.e., oxygen supply).

[0027] The feed inlet 21 and the temperature sensor mounting port 22 can be arranged axially on the side of the second tube 2, or they can be arranged at intervals on the same plane, such as at intervals of 90 degrees or 180 degrees.

[0028] As a preferred technical solution, a heating device 6 is installed at the end of the second tube 2 away from the first tube 1, and a temperature sensor 7 is installed in the temperature sensor mounting port 22. The heating device 6 can preheat the gas fuel entering from the feed port 21, so that the gas fuel ejected from the cylindrical base holes 422 and 46 in a "V" shape has a certain temperature, which facilitates ignition. The temperature sensor installed in the temperature sensor mounting port can monitor whether the gas fuel has been preheated to the set temperature.

[0029] As a preferred technical solution, the heating device 6 includes an electric heating rod 61, which is fixed on a mounting head 62. The outer side of the mounting head 62 is provided with an external thread 63. The mounting head 63 is threadedly connected to the end of the second tube away from the first tube and is mounted on the combustion furnace through the external thread 63.

[0030] As a preferred technical solution, the number of air ducts 45 is six, and each air duct 45 is tangent to the nozzle hole 44.

[0031] As a preferred technical solution, refer to Figure 5 The nozzle inner core 42 includes a cylindrical section 421, and the circumferential side of the cylindrical section 421 is provided with an external thread II, which is threadedly connected to the third tube 3. The nozzle inner core 42 has two symmetrical wrench faces 47 on its side for easy wrench insertion. The wrench faces 47 can also be modified to be regular hexagonal or regular octagonal, as long as it facilitates wrench insertion and rotation.

[0032] As a preferred technical solution, the first tube body 1, the second tube body 2, the third tube body 3, and the end cap 5 can be rotatably connected using pipe wrenches. Alternatively, the outer surface of the first tube body 1 or the second tube body 2 may be provided with rotatable outer quadrangular, hexagonal, or octagonal portions; see reference. Figure 4 The outer surface of the nozzle sleeve is provided with outer four corners, outer hexagons, or outer octagons for easy rotation; see reference. Figure 3 The outer side of the end cap is provided with an outer hexagonal or outer octagonal portion 53 for easy rotation. The outer square, outer hexagonal, and outer octagonal portions 53 can also be replaced with symmetrical wrench faces 47, as long as it is convenient to insert and rotate a wrench.

[0033] As a preferred technical solution, the end face of the end cap 5 away from the first tube body 1 is a plane or has a spherical groove 51; the end face of the end cap 5 near the first tube body 1 has a threaded mounting slot 54, and the end cap 5 is installed on the end of the first tube body 1 away from the second tube body 2 through the threaded mounting slot 54, and the end face of the nozzle sleeve 41 near the end cap 5 is pressed against the inner end face of the threaded mounting slot 54.

[0034] As a preferred technical solution, the first pipe body is a straight pipe or a right-angle bend, and the second pipe body and the third pipe body are both straight pipes or right-angle bends.

[0035] When this utility model is in operation, the gas fuel enters the second tube 2 through the feed port 21. The heating device 6 preheats the gas fuel, and the temperature sensor 7 monitors whether the gas fuel has been heated to the set temperature. The heated gas fuel then enters the third tube 3, passes through the nozzle core 42, and finally exits from the cylindrical base holes 422 and 46 + "V" shaped nozzles. The air inlet 11 is connected to a high-pressure air blower. After the high-pressure air blower enters through the air inlet 11, it flows from the air channel 45 to the middle of the nozzle, i.e., the root of the flame, to provide the nozzle with primary air (i.e., oxygen supply) for combustion.

[0036] When the nozzle of this invention becomes clogged, simply unscrew the end cap 5 and then unscrew the nozzle assembly 4 to clean the nozzle assembly 4. This saves time and effort, is highly efficient, has low strength requirements, and is simple and convenient to maintain. It also improves the efficiency of converting chemical energy into heat energy and reduces pollution.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gas burner, characterized in that: Comprising A first pipe body, a high-pressure air inlet is formed on the side wall of the first pipe body; A second pipe body is threadedly connected inside one end of the first pipe body, and a feed inlet and a temperature sensor mounting port are formed on the side wall of the second pipe body; A third pipe body is threadedly connected inside one end of the second pipe body close to the first pipe body, and the third pipe body is located inside the first pipe body; A spray head assembly includes a spray head sleeve and a spray head inner core, the spray head sleeve is threadedly connected with one end of the third pipe body away from the second pipe body, a spray head cavity is formed inside the spray head sleeve, the spray head inner core is located inside the spray head cavity, a spray head hole is formed in the center of the spray head sleeve and penetrates both ends, a plurality of air grooves are formed in the end face of the spray head sleeve away from the third pipe body, the head end of the spray head inner core is clamped in the spray head hole, a cylindrical base hole and a "V"-shaped spray hole are formed in the middle of the spray head inner core and penetrate both ends; An end cover is threadedly connected on one end of the first pipe body away from the second pipe body, and an end cover hole is formed in the center of the end cover and penetrates both ends and corresponds to the spray hole.

2. The nozzle of claim 1, wherein: A heating device is installed in one end of the second pipe body away from the first pipe body.

3. The nozzle of claim 2, wherein: The heating device includes an electric heating rod fixed on a mounting head, an outer thread I is arranged on the outer side of the mounting head, and the mounting head is threadedly connected with one end of the second pipe body away from the first pipe body.

4. The nozzle of claim 1, wherein: A temperature sensor is installed in the temperature sensor mounting port.

5. The nozzle of claim 1, wherein: The number of air grooves is six, and each air groove is tangent to the spray head hole.

6. The nozzle of claim 1, wherein: The depth of the air groove gradually decreases from the edge to the middle.

7. The nozzle of claim 1, wherein: The spray head inner core includes a cylindrical segment, an outer thread II is arranged on the circumferential side of the cylindrical segment, and the outer thread II is threadedly connected with the third pipe body.

8. The nozzle of claim 1, wherein: The outer side of the spray head sleeve is provided with an outer four-corner part, an outer hexagonal part, or an outer octagonal part for easy rotation; the outer side of the end cover is provided with an outer four-corner part, an outer hexagonal part, or an outer octagonal part for easy rotation.

9. The nozzle of claim 1, wherein: The end face of the end cover away from the first pipe body is a plane or is provided with a spherical recess; a threaded mounting groove hole is formed on the end face of the end cover close to the first pipe body, the end cover is mounted on the end of the first pipe body away from the second pipe body through the threaded mounting groove hole, and the end face of the spray head sleeve close to the end cover is pressed against the inner end face of the threaded mounting groove hole.

10. The nozzle of claim 1, wherein: The first pipe body is a straight pipe or a right-angle elbow pipe, and the second pipe body and the third pipe body are straight pipes or right-angle elbow pipes.

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