Oil pressure adjusting system of boiler ignition oil gun

Abstract

The utility model provides an oil pressure adjusting system of a boiler ignition oil gun, and relates to the technical field of boiler oil gun ignition, the inlet end of an oil supply pump in the system is communicated with the oil outlet end of an oil storage tank through a first pipeline, and the outlet end is connected with the ignition oil gun through a second pipeline; the outlet end of the energy accumulator communicates with the second pipeline through a third pipeline, and a pressure monitoring assembly is arranged at the joint of the second pipeline and the third pipeline and used for monitoring a pressure value and sending the pressure value to the energy accumulator. The energy accumulator stores fuel oil through the third pipeline under the normal condition, the interior of the energy accumulator is used for storing energy, and when the pressure value is lower than the preset value, the stored fuel oil is pressed out by releasing the stored energy so that fuel oil can be supplied to the ignition oil gun through the third pipeline and the second pipeline. According to the scheme, the ignition oil gun can be adjusted in time when the fuel oil pressure is not stable, the ignition efficiency of the ignition oil gun is guaranteed, and then the stability of the combustion working condition of the boiler is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field related to boiler oil gun ignition, in particular to an oil pressure regulating system of a boiler ignition oil gun. Background Art

[0002] At present, developing urban garbage energy, using urban garbage to generate electricity, turning harm into benefit and turning waste into treasure, not only reduces the pollution of garbage to the environment, but also opens up a new way to solve the current energy shortage problem. It is an important measure to solve the increasing urban environmental pollution and the increasingly scarce conventional energy.

[0003] The main combustion material of the biomass power plant is urban daily garbage. Since the calorific value of these daily garbage is small and unstable, when these urban daily garbage is transported to the boiler for combustion, it will cause the boiler combustion condition to be unstable. At this time, it is necessary to ignite the ignition oil gun to assist combustion to stabilize the boiler combustion condition. However, when using the ignition oil gun for combustion assistance, if the ignition oil gun cannot be put into operation in time, coupled with the large disturbance of the calorific value of the combustion material, it is easy to cause the boiler combustion to be unstable, and the furnace temperature will be lower than 850℃, triggering environmental protection supervision. In severe cases, it may even cause the turbine to shut down and the generator to be forced to de-energize, thus causing power grid accidents.

[0004] The fuel used by the boiler ignition oil gun is generally 0# diesel, which is stored in the oil tank of the oil depot. Since diesel is a flammable and explosive liquid, the oil depot is usually far away from the boiler room, which leads to a long oil supply pipeline. When the oil supply pump in the oil depot transports the diesel in the oil tank to the oil gun of the boiler fuel platform, the long oil supply pipeline often causes unstable pressure of the transported fuel. Moreover, when the boiler oil gun is ignited, the fuel needs to be atomized at the gun head of the oil gun, and unstable fuel pressure will lead to poor atomization effect of the ignition oil gun gun head, which is not conducive to fuel ignition, and often leads to the failure to successfully ignite the boiler ignition oil gun at one time, delaying the stability of the boiler combustion condition. Utility Model Content

[0005] In view of this, the purpose of the present utility model is to provide an oil pressure regulating system for a boiler ignition oil gun to solve the problems raised in the above technical background.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The utility model provides an oil pressure regulating system for an ignition oil gun of a boiler, comprising: an oil supply pump, an accumulator, a pressure monitoring component and an ignition oil gun; the inlet end of the oil supply pump is connected to the oil outlet end of the oil storage tank through a first pipeline, and the outlet end is connected to the ignition oil gun through a second pipeline, so as to deliver fuel to the ignition oil gun; the outlet end of the accumulator is connected to the second pipeline through a third pipeline, and a pressure monitoring component electrically connected to the accumulator is arranged at the connection between the second pipeline and the third pipeline, so as to monitor the oil pressure value in the second pipeline and send the monitored data to the accumulator; the accumulator is used to store fuel through the third pipeline under normal oil supply pressure of the ignition oil gun, and the accumulator is used to store energy inside; and the accumulator is used to press out the stored fuel by releasing the stored energy when the pressure monitoring component detects that the pressure value in the second pipeline is lower than a preset value, so as to supply fuel to the ignition oil gun through the third pipeline and the second pipeline.

[0008] Preferably, a safety valve is provided on the third pipeline near the accumulator to ensure safe operation and maintenance of the accumulator, the second pipeline and the third pipeline.

[0009] Preferably, a check valve is provided at a connection point of the second pipeline close to the third pipeline to prevent the fuel in the second pipeline and the third pipeline after the check valve from flowing back.

[0010] Preferably, the accumulator is an airbag accumulator, the airbag inside the airbag accumulator is used to be filled with nitrogen; and the charging end of the airbag accumulator is connected to a fourth pipe, which is connected to an external air source and is used to fill the airbag with nitrogen.

[0011] Preferably, the ignition oil gun is in the shape of a hollow round capillary tube, so that the fuel oil flows inside the hollow round capillary tube.

[0012] Preferably, the inlet end of the hollow circular tubular ignition oil gun is connected to the second pipe, and the outlet end is provided with an atomizing sheet, on which a plurality of through holes are evenly arranged for atomizing the fuel there.

[0013] Preferably, the working pressure range of the accumulator is 2.5~3.0Mpa.

[0014] Preferably, the second pipeline near the outlet end of the fuel supply pump is also connected to a fifth pipeline, and the other end of the fifth pipeline is connected to the fuel storage tank for transporting the fuel back to the fuel storage tank.

[0015] It can be seen from the above technical scheme that the oil pressure regulating system of the boiler ignition oil gun provided by this scheme includes an oil supply pump, an accumulator, a pressure monitoring component and an ignition oil gun, wherein the pressure monitoring component can monitor the oil pressure value in the second pipeline, that is, monitor the oil pressure value at the oil supply end of the ignition oil gun, and feed back the monitored oil pressure value to the accumulator. The accumulator can store oil and energy under normal pressure working conditions. Once the monitored pressure value is lower than the preset pressure value, the stored fuel can be pressed out by releasing the stored energy, thereby adjusting the oil pressure value by supplying oil to the second pipeline, thereby achieving stable oil supply to the ignition oil gun, so that the ignition oil gun can be adjusted in time when the fuel pressure is unstable, thereby ensuring the ignition efficiency of the ignition oil gun and thus ensuring the stability of the boiler combustion condition. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides a schematic diagram of an oil pressure regulating system for a boiler ignition oil gun.

[0017] Figure 2 The present invention is a schematic diagram of an atomizing sheet provided by the utility model.

[0018] In the figure: oil storage tank 10, oil supply pump 20, accumulator 30, pressure monitoring component 40, ignition oil gun 50, first pipeline 61, second pipeline 62, third pipeline 63, fourth pipeline 64, fifth pipeline 65, safety valve 70, check valve 80, atomizing sheet 90, through hole 91. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner", "lower" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limitations on the present invention.

[0021] See also Figure 1-2The utility model provides an oil pressure regulating system for a boiler ignition oil gun, comprising: an oil supply pump 20, an accumulator 30, a pressure monitoring component 40 and an ignition oil gun 50; the inlet end of the oil supply pump 20 is connected to the oil outlet end of the oil storage tank 10 through a first pipeline 61, and the outlet end is connected to the ignition oil gun 50 through a second pipeline 62, so as to deliver fuel to the ignition oil gun 50; the outlet end of the accumulator 30 is connected to the second pipeline 62 through a third pipeline 63, and a pressure monitoring component 40 electrically connected to the accumulator 30 is provided at the connection between the second pipeline 62 and the third pipeline 63. The pressure monitoring component 40 is used to monitor the oil pressure value in the second pipeline 62 and send the monitored data to the accumulator 30; the accumulator 30 is used to store fuel through the third pipeline 63 when the oil supply pressure of the ignition oil gun 50 is normal, and the accumulator 30 is used to store energy; and the accumulator 30 is used to release the stored energy to press out the stored fuel when the pressure monitoring component 40 monitors that the pressure value in the second pipeline 62 is lower than a preset value, so as to supply fuel to the ignition oil gun 50 through the third pipeline 63 and the second pipeline 62.

[0022] In this embodiment, the oil pressure value in the second pipe 62, that is, the oil pressure value at the oil supply end of the ignition oil gun 50, can be monitored by the pressure monitoring component 40, and the monitored oil pressure value is fed back to the accumulator 30. The accumulator 30 can store oil and energy under normal pressure working conditions. Once the monitored pressure value is less than the preset pressure value, the stored fuel can be pressed out by releasing the stored energy, so that the oil pressure value is adjusted by supplying oil to the second pipe 62, thereby realizing stable oil supply to the ignition oil gun 50, so that the ignition oil gun 50 can be adjusted in time when the fuel pressure is unstable, thereby ensuring the ignition efficiency of the ignition oil gun 50 and thus ensuring the stability of the boiler combustion condition.

[0023] In one embodiment, a safety valve 70 may be further provided on the third pipeline 63 near the accumulator 30 to provide safe operation and maintenance for the accumulator 30, the second pipeline 62 and the third pipeline 63. In this way, when abnormal pressure occurs in the pipeline, or when safe operation and maintenance is performed, the pressure can be released through the safety valve 70, or it is convenient for the staff to check the pipeline and the conditions in the pipeline.

[0024] In one embodiment, a check valve 80 may be further provided at the connection between the second pipe 62 and the third pipe 63 to prevent the fuel in the second pipe 62 and the third pipe 63 behind the check valve 80 from flowing back. In addition, the fuel in the second pipe 62 may be restricted from flowing back to avoid a lack of fuel entering the ignition oil gun 50, thereby affecting the normal operation of the ignition oil gun 50.

[0025] In one embodiment, the accumulator 30 is an airbag accumulator, the airbag inside the airbag accumulator is used to fill nitrogen; and the charging end of the airbag accumulator is connected to a fourth pipe 64, which is connected to an external air source to fill the airbag with nitrogen.

[0026] In this embodiment, the accumulator 30 can be set as an airbag accumulator, the airbag inside the airbag accumulator is filled with nitrogen, and a fourth pipe 64 is provided on the top of the airbag accumulator, and the fourth pipe 64 is used to fill the airbag with nitrogen through an external gas source. In this way, the airbag accumulator is characterized by small size, light weight, and convenient installation. The airbag has small inertia and is sensitive to reaction, and can absorb rapid pressure shocks and pulsations, thereby timely adjusting the fuel pressure required by the ignition oil gun 50. In addition, since nitrogen is not only low in cost, but also a relatively inert gas, it can ensure the safe operation of the airbag accumulator.

[0027] In one embodiment, the ignition oil gun 50 is in the shape of a hollow round capillary tube, so that the fuel flows inside the hollow round capillary tube. The inlet end of the hollow round capillary ignition oil gun 50 is connected to the second pipe 62, and the outlet end is provided with an atomizing sheet 90, and the atomizing sheet 90 is evenly provided with a plurality of through holes 91 for atomizing the fuel there.

[0028] The fuel used in a biopower plant is generally diesel. Diesel is not easy to ignite in liquid form, but it can be easily ignited by atomizing diesel liquid into diesel vapor. In this embodiment, an atomizer plate 90 is provided at the end of the ignition oil gun 50. The atomizer plate 90 is spirally connected to the end of the ignition oil gun 50, and a plurality of through holes 91 are provided on the atomizer plate 90. The diesel flows through the hollow circular capillary of the ignition oil gun 50 to the atomizer plate 90 at the end of the ignition oil gun 50, and is atomized at the end of the ignition oil gun 50 by the atomizer plate 90. In this way, by atomizing the diesel, the ignition success rate and ignition efficiency of the ignition oil gun 50 are improved.

[0029] In one embodiment, the accumulator 30 can also set a maximum working pressure value to control the maximum working pressure of the accumulator 30, and set a minimum working pressure value to control the minimum working pressure of the accumulator 30. For example, the working pressure range of the accumulator 30 can be set to 2.5~3.0Mpa, so that the accumulator 30 works between 2.5~3.0Mpa; the pressure in the accumulator 30 is divided into an air pressure part and an oil pressure part. If the accumulator 30 is filled with air, the airbag needs a larger compression amount to balance the air pressure and oil pressure compared to normal conditions, and the worse case is that the airbag is squeezed into a ball and loses its function; if the accumulator 30 is filled with air, the oil pressure is lower than normal conditions, and the expansion of the airbag increases. In severe cases, the sharp edge of the opening and closing valve core inside the accumulator 30 will cut the airbag, causing the airbag to fail. Therefore, it is necessary to ensure that the accumulator 30 works within a suitable pressure working range.

[0030] In one embodiment, the second pipe 62 near the outlet of the fuel supply pump 20 may also be connected to a fifth pipe 65, and the other end of the fifth pipe 65 is connected to the oil storage tank 10 to transport the fuel back to the oil storage tank 10. In this embodiment, by providing the fifth pipe 65, the fuel in the second pipe 62 can be transported back to the oil storage tank 10 through the fifth pipe 65 when the pressure is too high. Of course, it should be noted that the diameter of the fifth pipe 65 is much smaller than the diameters of the second pipe 62 and the third pipe 63, so as to avoid the fuel at the outlet of the fuel supply pump 20 from all flowing back to the oil storage tank 10 through the fourth pipe 64, resulting in no fuel entering the ignition oil gun 50 and the accumulator 30.

[0031] It can be seen that in the oil pressure regulating system of the boiler ignition oil gun 50 provided in this embodiment, the oil supply pump 20 and the ignition oil gun 50 are connected through the second pipe 62, so that the oil supply pump 20 can deliver the oil to the ignition oil gun 50, the bottom of the accumulator 30 is connected to the second pipe 62, so that the oil supply pump 20 can deliver the oil to the ignition oil gun 50, and a third pipe 63 is also provided between the bottom of the accumulator 30 and the second pipe 62, and the third pipe 63 connects the accumulator 30 with the second pipe 62. A pressure monitoring component 40 is also installed at the connection between the second pipe 62 and the third pipe 63, which is electrically connected to the accumulator 30 and can feed back the monitored pressure value in the second pipe 62 to the accumulator 30, so that the accumulator 30 can adjust the pressure according to the fed-back pressure value to ensure the stability of the fuel supply to the ignition oil gun 50.

[0032] Under normal circumstances, the fuel supply pump 20 supplies the fuel in the fuel storage tank 10 to the ignition oil gun 50 through the first pipe 61 and the second pipe 62, and supplies the fuel to the accumulator 30 through the third pipe 63. When the fuel enters the accumulator 30 through the third pipe 63 for storage, the accumulator 30 stores energy, such as nitrogen filling. When the oil pressure value in the second pipe 62 is less than the preset oil pressure value, that is, the pressure value at the inlet of the ignition oil gun 50 is less than the pressure value in the accumulator 30, the accumulator 30 starts to release energy, and the fuel stored in the accumulator 30 is pressed out by the released energy to be supplied to the ignition oil gun 50 through the third pipe 63 and the second pipe 62, thereby ensuring the oil pressure at the ignition oil gun 50 is stable.

[0033] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. An oil pressure regulating system for a boiler ignition oil gun, characterized in that: include: A fuel supply pump, an accumulator, a pressure monitoring component and an ignition oil gun; the inlet end of the fuel supply pump is connected to the oil outlet end of the oil storage tank through a first pipeline, and the outlet end is connected to the ignition oil gun through a second pipeline, so as to deliver fuel to the ignition oil gun; the outlet end of the accumulator is connected to the second pipeline through a third pipeline, and a pressure monitoring component electrically connected to the accumulator is provided at the connection between the second pipeline and the third pipeline, so as to monitor the oil pressure value in the second pipeline and send the monitored data to the accumulator; the accumulator is used to store fuel through the third pipeline when the fuel supply pressure of the ignition oil gun is normal, and the accumulator is used to store energy inside; and the accumulator is used to press out the stored fuel by releasing the stored energy when the pressure monitoring component detects that the pressure value in the second pipeline is lower than a preset value, so as to supply fuel to the ignition oil gun through the third pipeline and the second pipeline.

2. The oil pressure regulating system for the boiler ignition oil gun according to claim 1, characterized in that: A safety valve is provided on the third pipeline near the accumulator to ensure safe operation and maintenance of the accumulator, the second pipeline and the third pipeline.

3. The oil pressure regulating system for the boiler ignition oil gun according to claim 1, characterized in that: A check valve is provided at a connection point of the second pipeline close to the third pipeline to prevent fuel from flowing back in the second pipeline and the third pipeline after the check valve.

4. The oil pressure regulating system for the boiler ignition oil gun according to claim 1, characterized in that: The accumulator is an airbag accumulator, the airbag inside the airbag accumulator is used to fill nitrogen; and the charging end of the airbag accumulator is connected to a fourth pipeline, which is connected to an external air source and is used to fill the airbag with nitrogen.

5. The oil pressure regulating system for the boiler ignition oil gun according to claim 1, characterized in that: The ignition oil gun is in the shape of a hollow round capillary tube, so that the fuel oil flows inside the hollow round capillary tube.

6. The oil pressure regulating system for the boiler ignition oil gun according to claim 5, characterized in that: The inlet end of the hollow circular tubular ignition oil gun is connected to the second pipeline, and the outlet end is provided with an atomizing sheet, on which a plurality of through holes are evenly arranged for atomizing the fuel at this location.

7. The oil pressure regulating system for a boiler ignition oil gun according to claim 1, characterized in that: The working pressure range of the accumulator is 2.5~3.0Mpa.

8. The oil pressure regulating system for a boiler ignition oil gun according to claim 1, characterized in that: The second pipeline near the outlet end of the fuel supply pump is also connected with a fifth pipeline, and the other end of the fifth pipeline is connected with the fuel storage tank to transport the fuel back to the fuel storage tank.

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