Fast oil gun device with continuous cooling function

Abstract

The utility model discloses a continuous cooling fast oil gun device, which relates to the technical field of ignition oil guns, and comprises an oil gun assembly, an ignition gun assembly and a stable combustion shell, the stable combustion shell is used for being installed in a combustion chamber and provided with an opening communicating with the combustion chamber. The oil gun assembly comprises an oil gun and an oil supply pipeline, the oil gun is installed in the stable combustion shell, faces the opening and is used for spraying fuel oil, one end of the oil supply pipeline communicates with the oil gun, the other end of the oil supply pipeline extends out of the combustion chamber, and the part, located on the outer side of the combustion chamber, of the oil supply pipeline communicates with a cooling gas pipeline for introducing cooling gas into the oil supply pipeline; the ignition gun assembly comprises an ignition gun, the ignition gun is installed in the stable combustion shell and close to the oil gun, an advancing and retreating structure can be omitted, the response time is shortened, a cooling gas pipeline is additionally arranged, the oil gun is prevented from being burnt out, the stability of equipment is improved, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] This invention relates to the field of ignition oil gun technology, and in particular to a fast-dispensing oil gun device with continuous cooling. Background Technology

[0002] Traditional fuel nozzles typically employ a retractable design, requiring an additional retractable mechanism on which the nozzle is mounted. When activated, the nozzle extends into the combustion zone to supply fuel and ignite it; after use, it retracts to prevent damage from high temperatures. The need for this retractable mechanism results in a long ignition response time, typically 8–15 seconds. Furthermore, the lack of cooling during activation exposes the nozzle to high temperatures, making the nozzle tip susceptible to damage and requiring frequent replacement, increasing maintenance costs. The complex mechanical structure also makes it prone to mechanical failures over long-term operation, leading to high operating costs. Summary of the Invention

[0003] The purpose of this invention is to provide a continuously cooled fast-dispensing oil gun device to solve the problems existing in the prior art. It can eliminate the advance and retreat structure, shorten the response time to 3 seconds, and increase the cooling gas pipeline to avoid oil gun burnout, thereby improving equipment stability and service life.

[0004] To achieve the above objectives, the present invention provides the following solution: The present invention provides a continuously cooled fast-dispensing oil gun device, including an oil gun assembly, an ignition gun assembly, and a flame-stabilizing housing;

[0005] The combustion stabilizing shell is used to be installed in the combustion chamber and has an opening that communicates with the combustion chamber;

[0006] The fuel gun assembly includes a fuel gun and a fuel supply line. The fuel gun is installed inside the combustion stabilization housing and faces the opening, and is used to spray fuel. One end of the fuel supply line is connected to the fuel gun, and the other end extends out of the combustion chamber. The portion of the fuel supply line located outside the combustion chamber is connected to a cooling gas line that supplies cooling gas to it.

[0007] The ignition gun assembly includes an ignition gun, which is installed inside the flame-stabilizing housing and close to the oil gun.

[0008] Preferably, the cooling gas pipeline is a compressed air pipeline.

[0009] Preferably, a vent for secondary air is provided on the side of the flame-stabilizing housing opposite to the opening, and both the oil gun and the ignition gun are installed at the vent.

[0010] Preferably, the flame stabilizing housing has a built-in flame shield with a cylindrical structure that is sleeved on the outer periphery of the fuel gun and the ignition gun. The radial cross section of the flame shield gradually decreases along the direction of fuel injection. The outer peripheral wall of the flame shield has an array of vent holes, and there is a ventilation gap with an annular structure between the outer peripheral wall of the flame shield and the inner peripheral wall of the flame stabilizing housing.

[0011] Preferably, the fuel gun assembly further includes a fuel gun protective sleeve, which passes through the side wall of the combustion chamber, with one end extending into the combustion stabilization housing and where the fuel gun is installed, and the other end extending out of the combustion chamber. The fuel supply pipe extends into the combustion chamber from the end of the fuel gun protective sleeve that extends out of the combustion chamber and communicates with the fuel gun.

[0012] Preferably, the ignition gun assembly further includes an ignition gun protective sleeve, which passes through the side wall of the combustion chamber, with one end extending into the combustion stabilization housing and where the ignition gun is installed, and the other end extending out of the combustion chamber. A wire connected to the ignition gun is disposed inside the ignition gun protective sleeve.

[0013] Preferably, the oil gun protective sleeve includes a first flexible connecting section integrally formed with and coaxially connected to the main structure, the first flexible connecting section being disposed close to the flame stabilizing shell, and the oil supply pipeline includes a second flexible connecting section integrally formed with and coaxially connected to the main structure, the second flexible connecting section being disposed at the position corresponding to the first flexible connecting section.

[0014] Preferably, the ignition gun protective sleeve includes a third flexible connecting section integrally formed with and coaxially connected to the main structure, and the third flexible connecting section is disposed close to the flame-stabilizing shell.

[0015] Preferably, the oil gun protective sleeve and the ignition gun protective sleeve extend coaxially and are arranged side by side, and the first flexible connecting section and the third flexible connecting section face each other and are arranged side by side.

[0016] Preferably, the oil gun protective sleeve is coaxially connected to a mounting flange on the side opposite to the combustion stabilization housing. The mounting flange is detachably mounted on the outer wall of the combustion chamber, and the mounting flange has a mounting hole for the ignition gun protective sleeve to pass through.

[0017] The present invention achieves the following technical effects compared to the prior art:

[0018] This invention provides a continuously cooled fast-dispensing fuel nozzle device. It employs a flame-stabilizing shell to provide a stable combustion environment and ensure flame stability. Cooling gas is supplied via a cooling gas pipeline to assist fuel atomization and improve combustion efficiency. The flame-stabilizing shell also reduces heat radiation from the combustion chamber to the fuel nozzle. Furthermore, after ignition, the cooling gas pipeline continuously supplies cooling gas to the fuel supply line and the fuel nozzle, ensuring stable operation. This eliminates the need for a retractable mechanism, allowing for a fixed structure. This reduces the time required from the ignition command to successful fuel ignition, limiting it to within 3 seconds. Consequently, it reduces mechanical failures, decreases the frequency of equipment replacement and maintenance, and improves economic efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the continuously cooled fast-dispensing oil gun device disclosed in this invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the overall structure of the continuously cooled fast-dispensing oil gun device disclosed in this invention. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the exposed oil supply pipeline of the continuously cooled fast-dispensing oil gun device disclosed in this invention.

[0023] Figure 4 This is a schematic diagram of the exposed flame shield of the continuously cooled fast-dispensing oil gun device disclosed in this invention.

[0024] Figure 5 This is a schematic diagram of the flame shield and its inner structure disclosed in this invention;

[0025] Among them, 1-flame stabilizing shell, 2-flame shield, 3-first flexible connection section, 4-third flexible connection section, 5-oil supply pipeline, 6-oil gun protective sleeve, 7-ignition gun protective sleeve, 8-cooling gas pipeline, 9-mounting flange, 10-second flexible connection section, 11-oil gun, 12-ignition gun, 13-vent hole, 14-support bar. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] The purpose of this invention is to provide a continuously cooled fast-dispensing oil gun device to solve the problems existing in the prior art. It can eliminate the advance and retreat structure, shorten the response time to 3 seconds, and increase the cooling gas pipeline to avoid oil gun burnout, thereby improving equipment stability and service life.

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] like Figures 1 to 5 As shown, this utility model provides a continuously cooling fast-acting fuel gun device, commonly used for boiler ignition and combustion assistance. It includes a fuel gun assembly 11, an ignition gun assembly 12, and a combustion stabilizing housing 1. The combustion stabilizing housing 1 is installed inside the combustion chamber and has an opening communicating with the combustion chamber. Preferably, the combustion stabilizing housing 1 is made of stainless steel, and further, its outer and / or inner peripheral walls are covered with a high-temperature resistant insulation layer, preferably made of ceramic-based or carbon-based insulation material. The fuel gun assembly 11 includes a fuel gun 11 and a fuel supply line 5. The fuel gun 11 is installed inside the combustion stabilizing housing 1, facing the opening, and is used to spray fuel oil. The fuel gun 11 atomizes the fuel oil and sprays it into the combustion chamber through the opening on the combustion stabilizing housing 1. Preferably, the fuel gun 11 is made of high-temperature alloy or ceramic material to enhance its high-temperature resistance. One end of the fuel supply line 5 is connected to the fuel gun 11, and the other end extends out of the combustion chamber. The fuel supply line 5 is used to deliver fuel oil to the fuel gun 11, ensuring a continuous fuel oil supply. The portion of the fuel supply line 5 located outside the combustion chamber is connected to a cooling gas line 8, which supplies cooling gas to the fuel supply line 5. By installing the cooling gas line 8, cooling gas is mixed into the fuel in the fuel supply line 5, further ensuring the fuel is atomized and sprayed out. After ignition, the cooling gas continuously supplied to the fuel supply line 5 through the cooling gas line 8 continuously cools the fuel gun 11, preventing it from burning out due to high temperature. It is important to note that the cooling gas line 8 always supplies a small flow rate of cooling gas to the fuel supply line 5, which satisfies the atomization requirements, continuously cools the fuel gun 11, and minimizes the impact on the combustion chamber environment. The ignition gun 12 assembly includes an ignition gun 12, which is installed inside the combustion stabilization housing 1 and close to the fuel gun 11. The ignition gun 12 is used to generate a spark or high-temperature flame to ignite the fuel, thus initiating the combustion process.

[0030] This invention discloses a continuously cooled fast-dispensing fuel nozzle device, the specific usage process of which is as follows: Step 1: During hot operation, cooling gas and fuel are supplied simultaneously. Fuel enters the fuel nozzle 11 through the fuel supply line 5, and cooling gas is connected to the fuel supply line 5 through the cooling gas line 8, thus entering the fuel nozzle 11 simultaneously with the fuel. Step 2: When fuel enters the fuel nozzle 11 through the fuel supply line 5, it cooperates with the cooling gas from the cooling gas line 8. The cooling gas flow shears the fuel, breaking it into tiny oil droplets, achieving more complete fuel atomization. Step 3: After the fuel is fully atomized, the temperature field inside the combustion stabilization shell 1 is high, and the oil mist can be rapidly vaporized. At this time, the ignition gun 12 ignites, completing the ignition of the fuel nozzle 11. Step 4: Prolonged combustion will cause the temperature of the fuel nozzle 11 to rise, therefore cooling measures are required. The cooling gas introduced into the fuel supply line 5 through the cooling gas line 8 is used not only for fuel atomization but also for continuous cooling of the fuel nozzle 11 after ignition.

[0031] This invention provides a continuously cooled fast-dispensing fuel nozzle device. It features a flame-stabilizing housing 1 to provide a stable combustion environment and ensure flame stability. Cooling gas is supplied via a cooling gas pipeline 8 to assist fuel atomization and improve combustion efficiency. The flame-stabilizing housing 1 also reduces heat radiation from the combustion chamber to the fuel nozzle 11. Furthermore, after ignition, the cooling gas pipeline 8 continuously supplies cooling gas to the fuel supply pipeline 5 and the fuel nozzle 11, ensuring stable operation of the device. This eliminates the need for a retractable mechanism, allowing for a fixed structure and reducing the time required from the ignition command to successful fuel ignition to within 3 seconds. This reduces mechanical failures, decreases the frequency of equipment replacement and maintenance, and improves economic efficiency.

[0032] In one specific embodiment, the cooling gas pipeline 8 adopts a compressed air pipeline. The cooling gas enters the fuel supply pipeline 5 and the fuel gun 11 under high pressure. The purpose is to provide power during fuel injection, so that the fuel is fully atomized, improves combustion efficiency, and realizes the purging function to purge the residual fuel in the fuel supply pipeline 5 and the fuel gun 11.

[0033] In one specific embodiment, a vent is provided on the side of the combustion stabilizing housing 1 facing away from the outlet for secondary air to enter. The oil gun 11 and the ignition gun 12 are both installed at the vent, so that the secondary air can enter the combustion chamber through the combustion stabilizing housing 1. The secondary air can cool the combustion stabilizing housing 1, the oil gun 11 and the ignition gun 12, further reducing the risk of damage to the oil gun 11 and the ignition gun 12 due to high temperature, and extending the service life of the entire equipment.

[0034] In one specific embodiment, the combustion stabilizing housing 1 houses a cylindrical flame deflector 2 fitted around the outer periphery of the fuel gun 11 and the ignition gun 12. The radial cross-section of the flame deflector 2 gradually decreases along the direction of fuel injection. The outer peripheral wall of the flame deflector 2 has an array of vent holes 13, and there is a ring-shaped ventilation gap between the outer peripheral wall of the flame deflector 2 and the inner peripheral wall of the combustion stabilizing housing 1. When fuel is injected and burned at the fuel gun 11, a portion of the secondary airflow flows into the space of the flame deflector 2 to participate in combustion; this can be referred to as the primary airflow. Another portion of the secondary airflow flows into the ventilation gap between the combustion stabilizing housing 1 and the flame deflector 2, passes through the vent holes 13, and enters the flame deflector 2; this can be referred to as the secondary airflow. Under the impact of the primary airflow, a film-like airflow is formed on the flame deflector 2, which has a good cooling effect on the flame deflector 2, preventing it from being burned by the high-temperature flame. The flame deflector 2 has a certain heat storage function. It absorbs the initial heat of the oil flame and continuously heats the subsequent oil mist. At the same time, the airflow passing through the vent 13 forms a micro-recirculation vortex at the root of the vent 13 just before it is impacted and forms a boundary gas film. This micro-recirculation vortex entrains the high-temperature flue gas from the oil flame, which helps to stabilize the high-temperature field. Therefore, under the heat storage and heating effect of the flame deflector 2, and with the effect of the recirculation vortex spreading throughout the inner surface of the flame deflector 2, the temperature field inside the combustion chamber 1 is high, and the oil mist can be rapidly vaporized, making the combustion enhancement effect of the oil combustion chamber on the oil flame very significant.

[0035] In this embodiment, preferably, an installation ring is fitted onto the oil gun 11, and multiple support bars 14 are connected between the installation ring and the inner peripheral wall of the flame shield 2. Each support bar 14 is distributed in a spoke-like manner to complete the installation of the flame shield 2, and the ignition gun 12 extends into the flame shield 2 after passing through the gap between two adjacent support bars 14.

[0036] In this embodiment, the flame deflector 2 can be an integral conical cylindrical structure. Alternatively, it can be divided into two sections along the axial direction. One section is close to the combustion chamber sidewall and has a straight cylindrical structure, which is connected to the mounting ring. The other section is far from the combustion chamber sidewall and has a conical cylindrical structure, with its radial cross section gradually increasing along the injection direction.

[0037] In one specific embodiment, the fuel nozzle 11 assembly further includes a fuel nozzle protective sleeve 6. The fuel nozzle protective sleeve 6 passes through the side wall of the combustion chamber, with one end extending into the combustion stabilization housing 1 and where the fuel nozzle 11 is installed. The other end extends out of the combustion chamber. The fuel supply line 5 extends into the combustion chamber from the end of the fuel nozzle protective sleeve 6 and is connected to the fuel nozzle 11. This protects the fuel nozzle 11 and the fuel supply line 5 from damage caused by external forces such as collisions, friction, and compression, thus extending their service life. It also prevents external environmental contaminants such as dust, dirt, and moisture from entering the fuel nozzle 11 and the fuel supply line 5, which could affect sealing or block the fuel lines.

[0038] In one specific embodiment, the ignition gun 12 assembly further includes an ignition gun protective sleeve 7. The ignition gun protective sleeve 7 passes through the side wall of the combustion chamber, with one end extending into the combustion stabilization housing 1 and housing the ignition gun 12, and the other end extending out of the combustion chamber. The wire connected to the ignition gun 12 is disposed inside the ignition gun protective sleeve 7. The ignition gun 12 and the wire connected to it are protected by the oil gun protective sleeve 7 to prevent damage from external forces such as collision, friction, and compression, thus extending their service life. It also prevents contaminants such as dust, dirt, and moisture from the external environment from entering the ignition gun 12 and the wire.

[0039] In one specific embodiment, the oil gun protective sleeve 6 includes a first flexible connecting section 3 integrally formed with and coaxially connected to its main body structure. The first flexible connecting section 3 is disposed close to the flame stabilizing housing 1. The oil supply pipeline 5 includes a second flexible connecting section 10 integrally formed with and coaxially connected to its main body structure. The second flexible connecting section 10 is disposed at the position corresponding to the first flexible connecting section 3. The first flexible connecting section 3 and the second flexible connecting section 10 provide a certain degree of flexibility so that the oil gun protective sleeve 6 and the oil supply pipeline 5 can adapt to the movement or thermal expansion of the equipment. Preferably, the first flexible connecting section 3 and the second flexible connecting section 10 are made of metal hoses or metal corrugated pipes, etc.

[0040] In one specific embodiment, the ignition gun protective sleeve 7 includes a third flexible connecting section 4 integrally formed with and coaxially connected to the main structure. The third flexible connecting section 4 is located close to the flame-stabilizing housing 1 and provides a certain degree of flexibility so that the ignition gun protective sleeve 7 can adapt to the movement or thermal expansion of the equipment. Preferably, the third flexible connecting section 4 is a metal hose or a metal corrugated pipe, etc.

[0041] In one specific embodiment, the oil gun protective sleeve 6 and the ignition gun protective sleeve 7 extend coaxially and are arranged side by side, and the first flexible connecting section 3 and the third flexible connecting section 4 face each other and are arranged side by side, so as to ensure that the oil gun protective sleeve 6 and the ignition gun protective sleeve 7 can synchronously adapt to the movement or thermal expansion of the equipment. In addition, during the installation process, the first flexible connecting section 3, the second flexible connecting section 10 and the third flexible connecting section 4 can be bent synchronously, so that the oil gun protective sleeve 6, the oil supply line 5 and the ignition gun protective sleeve 7 can conform to the installation environment of the equipment.

[0042] In one specific embodiment, the oil gun protective sleeve 6 is coaxially connected to the side away from the combustion stabilization housing 1 with a mounting flange 9. The mounting flange 9 is detachably mounted on the outer wall of the combustion chamber, and the mounting flange 9 has a mounting hole for the ignition gun protective sleeve 7 to pass through. The mounting flange 9 is used to fix the oil gun protective sleeve 6, thereby ensuring the stability of the oil gun 11 and the oil supply line 5 during use.

[0043] Any adaptive changes made according to actual needs are within the scope of protection of this invention.

[0044] It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A continuously cooled, fast-dispensing oil gun device, characterized in that, The device includes a fuel nozzle assembly, an ignition gun assembly, and a flame stabilizing housing. The flame stabilizing housing is installed inside a combustion chamber and has an opening communicating with the combustion chamber. The fuel nozzle assembly includes a fuel nozzle and a fuel supply line. The fuel nozzle is installed inside the flame stabilizing housing, facing the opening, and is used to inject fuel. One end of the fuel supply line is connected to the fuel nozzle, and the other end extends out of the combustion chamber. The portion of the fuel supply line located outside the combustion chamber is connected to a cooling gas line that supplies cooling gas to it. The ignition gun assembly includes an ignition gun, which is installed inside the flame stabilizing housing and close to the fuel nozzle. The combustion stabilizing housing has a built-in flame shield with a cylindrical structure that surrounds the outer periphery of the fuel gun and the ignition gun. The radial cross section of the flame shield gradually decreases along the direction of fuel injection. The outer peripheral wall of the flame shield has an array of vent holes, and there is a ring-shaped ventilation gap between the outer peripheral wall of the flame shield and the inner peripheral wall of the combustion stabilizing housing.

2. The continuously cooled fast-dispensing oil gun device according to claim 1, characterized in that, The cooling gas pipeline uses compressed air.

3. The continuously cooled fast-dispensing oil gun device according to claim 1, characterized in that, The flame-stabilizing housing has a ventilation port on the side opposite to the opening for secondary air to enter, and the oil gun and the ignition gun are both installed at the ventilation port.

4. The continuously cooled fast-dispensing oil gun device according to claim 2 or 3, characterized in that, The fuel gun assembly also includes a fuel gun protective sleeve, which passes through the side wall of the combustion chamber. One end of the protective sleeve extends into the combustion stabilization housing and is fitted with the fuel gun. The other end of the protective sleeve extends out of the combustion chamber. The fuel supply pipe extends into the combustion chamber from the end of the protective sleeve and is connected to the fuel gun.

5. The continuously cooled fast-dispensing oil gun device according to claim 4, characterized in that, The ignition gun assembly also includes an ignition gun protective sleeve, which passes through the side wall of the combustion chamber. One end of the sleeve extends into the combustion stabilization housing and is fitted with the ignition gun, while the other end extends out of the combustion chamber. A wire connected to the ignition gun is disposed inside the ignition gun protective sleeve.

6. The continuously cooled fast-dispensing oil gun device according to claim 5, characterized in that, The oil gun protective sleeve includes a first flexible connecting section integrally formed with and coaxially connected to its main structure. The first flexible connecting section is located close to the flame stabilizing shell. The oil supply line includes a second flexible connecting section integrally formed with and coaxially connected to its main structure. The second flexible connecting section is located at the position of the first flexible connecting section.

7. The continuously cooled fast-dispensing oil gun device according to claim 6, characterized in that, The ignition gun protective sleeve includes a third flexible connecting section that is integrally formed with and coaxially connected to the main structure, and the third flexible connecting section is located close to the flame-stabilizing shell.

8. The continuously cooled fast-dispensing oil gun device according to claim 7, characterized in that, The oil gun protective sleeve and the ignition gun protective sleeve extend coaxially and are arranged side by side, and the first flexible connecting section and the third flexible connecting section face each other and are arranged side by side.

9. The continuously cooled fast-dispensing oil gun device according to claim 8, characterized in that, The protective sleeve of the oil gun is coaxially connected to a mounting flange on the side away from the combustion stabilization shell. The mounting flange is detachably installed on the outer wall of the combustion chamber, and the mounting flange has a mounting hole for the protective sleeve of the ignition gun to pass through.

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