CN219284653U - Air-gas ratio testing device for ignition gun - Google Patents
Air-gas ratio testing device for ignition gun Download PDFInfo
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- CN219284653U CN219284653U CN202320659737.9U CN202320659737U CN219284653U CN 219284653 U CN219284653 U CN 219284653U CN 202320659737 U CN202320659737 U CN 202320659737U CN 219284653 U CN219284653 U CN 219284653U
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Abstract
The utility model discloses an ignition gun air-fuel gas proportioning testing device, which comprises an ignition fuel gas pipeline and an air pipeline; flow regulators are arranged on the pilot fuel gas pipeline and the air pipeline, pressure transmitters are respectively arranged at two ends of the flow regulators, flow limiters are arranged on the pilot fuel gas pipeline and the air pipeline in parallel with the flow regulators, and switching valves are arranged at two ends of the flow regulators and the flow limiters; the intelligent control system further comprises a controller, wherein the input end of the controller is connected with the flow regulator and the pressure transmitter, and the output end of the controller is connected with the flow regulator and the switching valve. The utility model can quickly find the optimal ratio flow of the ignition gas and the air of the ignition gun, realizes the control of the optimal ratio of the ignition gas and the air, improves the ignition efficiency, avoids the need of repeatedly adjusting the flow and the pressure of the ignition gas and the air to find the optimal ratio each time of ignition, shortens the ignition time and reduces the difficulty and the safety risk.
Description
Technical Field
The utility model relates to the technical field of ignition guns of combustion furnaces, in particular to an air-gas ratio testing device for an ignition gun.
Background
At present, two ignition modes of the industrial combustion furnace are generally adopted, one ignition mode is that an ignition gun is not provided with a ignition device, and the ignition gun is adopted to ignite direct-point main fire; the other is that the ignition gun is provided with a igniting device, and the ignition gun ignites the igniting device arranged in the ignition gun firstly and then ignites the main fire by igniting.
For the second ignition mode, adjusting the ratio of pilot fuel gas to air pressure and flow is a key factor for ensuring the ignition success rate. Because the existing ignition fuel gas and air pipelines are only provided with a self-operated pressure regulating valve, a one-way valve and a gate valve (as shown in a block in fig. 1), the existing configuration does not have the condition of precisely controlling the flow and pressure of the ignition fuel gas and air, and is more not related to the automatic proportioning of the fuel gas and the air flow; in addition, the pilot fuel gas and the air flow are smaller, the current adjustment is usually realized by adjusting the opening of a manual valve and the outlet pressure of a self-operated pressure regulating valve, and the precise control on the flow and the pressure of the pilot fuel gas and the air cannot be realized. In the ignition process, the flow and the pressure of ignition gas and air are repeatedly regulated by experience to find the optimal proportion, sometimes, the ignition gun is detached, the ignition condition is observed by igniting outside the combustion furnace, compared with the ignition gun with direct-point main fire, the ignition gun has the defects of large size, heavy weight, inconvenient installation and the like, the maintenance workload and the labor intensity are increased, and meanwhile, other factors such as the furnace pressure of the main combustion furnace during ignition are also considered, so that the ignition success rate is low, the ignition time is long, the operation difficulty and the safety risk of the device are increased, and the starting time of the device is prolonged; and simultaneously, the material consumption is increased and the service life of the ignition gun is shortened. During the operation of the device, if the protective nitrogen of the ignition gun is not timely introduced or insufficient, the high-temperature process gas in the furnace is cooled in the ignition gun to separate out condensed water and sulfur, so that the internal corrosion, sulfur accumulation, blockage and other faults of the ignition gun are caused.
In view of this, the present application is specifically proposed.
Disclosure of Invention
The utility model aims to provide an air-fuel gas proportioning testing device for an ignition gun, which can quickly find the optimal proportioning flow of the ignition fuel gas and the air of the ignition gun, realize the control of the optimal proportioning of the ignition fuel gas and the air, improve the ignition efficiency, avoid the need of repeatedly adjusting the flow and the pressure of the ignition fuel gas and the air to find the optimal proportioning for each ignition, thereby shortening the ignition time and greatly reducing the operation difficulty and the safety risk; meanwhile, whether faults such as corrosion, sulfur accumulation, blockage and the like exist in the ignition gun can be rapidly judged, and the fault treatment efficiency is improved.
The utility model is realized by the following technical scheme:
the air-gas ratio testing device of the ignition gun comprises a pilot fuel gas pipeline and an air pipeline, wherein the inlet end of the pilot fuel gas pipeline is used for being connected with fuel gas, the outlet end of the pilot fuel gas pipeline is used for being connected with the ignition gun, the inlet end of the air pipeline is used for being connected with instrument wind, and the outlet end of the air pipeline is used for being connected with the ignition gun; flow regulators are arranged on the pilot fuel gas pipeline and the air pipeline, pressure transmitters are respectively arranged at two ends of the flow regulators, flow limiters are arranged on the pilot fuel gas pipeline and the air pipeline in parallel with the flow regulators, and switching valves are arranged at two ends of the flow regulators and the flow limiters; the valve also comprises a gate valve with scales, which is arranged in parallel with the flow regulator and the flow restrictor; the intelligent control system further comprises a controller, wherein the input end of the controller is connected with the flow regulator and the pressure transmitter, and the output end of the controller is connected with the flow regulator and the switching valve.
The utility model is provided with the flow regulator, the pressure transmitter and the controller, wherein the flow regulator has the functions of flow regulation and flow measurement, can regulate the flow according to the control signal given by the controller, and the pressure transmitter can realize the monitoring of the pilot air pressure and the back pressure of the hearth and can be used for analyzing the operation condition of the flow regulator and the like; simultaneously measuring the medium flow and feeding back a flow signal to the controller; the structure can quickly find the optimal ratio flow of the ignition gas and the air of the ignition gun, realize the control of the optimal ratio of the ignition gas and the air, improve the ignition efficiency, avoid the need of repeatedly adjusting the flow and the pressure of the ignition gas and the air to find the optimal ratio each time of ignition, shorten the ignition time and greatly reduce the operation difficulty and the safety risk; meanwhile, whether faults such as corrosion, sulfur accumulation, blockage and the like exist in the ignition gun can be rapidly judged, and the fault treatment efficiency is improved.
The ignition gas and the air pipeline are provided with the flow regulator, the flow restrictor and the gate valve with scales which are connected in parallel, so that the utility model has three working modes of manual regulation, automatic regulation and quantitative regulation for the air and the fuel gas. The manual adjustment means that the flow is adjusted by manually rotating a gate valve with scales; the automatic adjustment means that the flow rate is adjusted by a flow regulator; quantitative regulation refers to regulation of flow through a restrictor. The three working modes are mutually verified through flow and pressure, and then the working mode with the simplest structure and the most reliable structure is selected and determined to be applied to the ignition gun through a testing device; meanwhile, the gas and air working modes can be selected according to the requirements, and different combined ignition gas and air proportioning modes such as manual-manual mode, manual-automatic mode and the like are formed.
The fuel gas flow control can realize manual control of the air flow by controlling the opening of the regulator in a manual mode; or the value obtained by dividing the fixed value of the air flow by the air-fuel ratio coefficient is used as the set value of air flow regulation so as to realize automatic control of the fuel air flow; the air-fuel ratio coefficient may also be modified to achieve adjustment of fuel flow.
Further, the flow restrictor is of a cylindrical structure, through holes are formed in the center of the flow restrictor in a penetrating mode, and two ends of the flow restrictor are of thread structures.
Further, the ignition fuel gas line and the air line are provided with filters near the inlet ends, and the filters can filter impurities in the medium to prevent the ignition gun from being blocked and prevent the ignition electrode from being polluted.
Further, an outlet valve is arranged on the pilot fuel gas pipeline and the air pipeline close to the outlet end, a vent valve connected with the outlet valve in parallel is arranged at the tail end of the parallel pipeline of the flow regulator and the flow restrictor, the tail end of the vent valve is communicated with the outside, a flow meter is further arranged on a branch pipe where the vent valve is located, the output end of the flow meter is connected with the input end of the vent valve, and a flow meter signal is also connected into the controller. The utility model can realize the quality inspection and pollution discharge of the pilot fuel gas and air before ignition by the cooperation operation of closing the outlet valve and opening the vent valve, and the flowmeter can be used for off-line flow measurement and proportioning condition inspection before each flow of the ignition gun air-fuel gas proportioning test device enters the ignition gun (the process pipeline needs to be replaced by nitrogen before the device is started, and the ignition gun is in a nitrogen purging protection state during the operation of the device).
Further, the switching valve, the emptying valve and the outlet valve can be all electromagnetic valves or directly replaced by electromagnetic valves.
Further, quick-mounting connectors are arranged at the outlet end and the inlet end of the ignition fuel gas pipeline and the air pipeline, and compared with the prior ignition fuel gas, the ignition air pipeline and the ignition gun which are in flange connection, the workload of disassembling and mounting the ignition gun can be effectively reduced through the connection mode of the quick-mounting connectors.
Further, the device also comprises a mounting box body, the pilot fuel gas pipeline and the air pipeline are both arranged in the mounting box body, and the outlet end and the inlet end extend out of the mounting box body, so that the whole operation, use and carrying of the testing device are convenient.
Further, the controller adopts a controller with a control function of an RTU or a PLC.
Further, the quick connector is connected with the end part of the pipeline through a connecting flange.
Further, a touch operation screen is arranged on the outer surface of the installation box body and is in data communication connection with the controller. The touch operation screen can display the flow chart of the testing device and the state of the monitoring parameters, and can set the parameters and select the proportioning mode.
Compared with the prior art, the utility model has the following advantages and beneficial effects,
1. according to the air-fuel ratio testing device for the ignition gun, provided by the embodiment of the utility model, through the arrangement of the flow regulator, the pressure transmitter and the controller, the flow regulator has the functions of flow regulation and flow measurement, the flow regulation can be carried out according to the control signal given by the controller, the pressure transmitter can realize the ignition air pressure and the hearth back pressure monitoring, and meanwhile, the device can be used for analyzing the running condition of the flow regulator and the like; simultaneously measuring the medium flow and feeding back a flow signal to the controller;
2. according to the air-fuel ratio testing device for the ignition gun, provided by the embodiment of the utility model, the optimal ratio flow of the ignition fuel gas and the air of the ignition gun can be quickly found, the optimal ratio of the ignition fuel gas and the air is controlled, the ignition efficiency is improved, the condition that the optimal ratio is found by repeatedly adjusting the flow and the pressure of the ignition fuel gas and the air in each ignition is avoided, the ignition time is shortened, and the operation difficulty and the safety risk are greatly reduced.
3. The device for testing the air and gas ratio of the ignition gun provided by the embodiment of the utility model can also be used for rapidly judging whether faults such as corrosion, sulfur accumulation, blockage and the like exist in the ignition gun, and improving the fault processing efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present utility model, the drawings that are needed in the examples will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and that other related drawings may be obtained from these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a diagram showing the connection and installation of a conventional pilot fuel gas, air line and ignition gun;
fig. 2 is a structural diagram of a test device according to an embodiment of the present utility model.
Reference numerals and corresponding part names:
1-filter, 2-pressure transmitter, 3-flow regulator, 4-gate valve with scale, 5-restrictor, 6-switching valve, 7-relief valve, 8-outlet valve, 9-fuel gas inlet, 10-air inlet, 11-fuel gas outlet, 12-air outlet, 13-flange, 14-quick-connect, 16-mounting box, 17-flowmeter.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present utility model, the present utility model will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present utility model and the descriptions thereof are for illustrating the present utility model only and are not to be construed as limiting the present utility model.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. However, it will be apparent to one of ordinary skill in the art that: no such specific details are necessary to practice the utility model. In other instances, well-known structures have not been described in detail in order to not obscure the utility model.
Throughout the specification, references to "one embodiment," "an embodiment," "one example," or "an example" mean: a particular feature, structure, or characteristic described in connection with the embodiment or example is included within at least one embodiment of the utility model. Thus, the appearances of the phrases "in one embodiment," "in an example," or "in an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Moreover, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and that the illustrations are not necessarily drawn to scale. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In the description of the present utility model, the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present utility model.
Examples
As shown in fig. 2, the embodiment of the utility model provides an air-fuel gas proportioning testing device of an ignition gun, which comprises a pilot fuel gas pipeline and an air pipeline, wherein a fuel gas inlet 9 of the pilot fuel gas pipeline is used for being connected with fuel gas, a fuel gas outlet 11 is used for being connected with the ignition gun, an air inlet 10 of the air pipeline is used for being connected with instrument wind, and an air outlet 12 is used for being connected with the ignition gun; the pilot fuel gas pipeline and the air pipeline are respectively provided with a flow regulator 3, two ends of the flow regulator 3 are respectively provided with a pressure transmitter 2, the pilot fuel gas pipeline and the air pipeline are also provided with a flow restrictor 5 connected with the flow regulator 3 in parallel, and two ends of the flow regulator 3 and the flow restrictor 5 are respectively provided with a switching valve 6; the valve also comprises a gate valve 4 with scales, which is arranged in parallel with the flow regulator 3 and the restrictor 5; the intelligent control system further comprises a controller, wherein the input end of the controller is connected with the flow regulator 3 and the pressure transmitter 2, and the output end of the controller is connected with the flow regulator 3 and the switching valve 6.
The utility model is provided with the flow regulator, the pressure transmitter and the controller, wherein the flow regulator has the functions of flow regulation and flow measurement, can regulate the flow according to the control signal given by the controller, and the pressure transmitter can realize the monitoring of the pilot air pressure and the back pressure of the hearth and can be used for analyzing the operation condition of the flow regulator and the like; simultaneously measuring the medium flow and feeding back a flow signal to the controller; the structure can quickly find the optimal ratio flow of the ignition gas and the air of the ignition gun, realize the control of the optimal ratio of the ignition gas and the air, improve the ignition efficiency, avoid the need of repeatedly adjusting the flow and the pressure of the ignition gas and the air to find the optimal ratio each time of ignition, shorten the ignition time and greatly reduce the operation difficulty and the safety risk; meanwhile, whether faults such as corrosion, sulfur accumulation, blockage and the like exist in the ignition gun can be rapidly judged, and the fault treatment efficiency is improved.
The ignition gas and the air pipeline are provided with the flow regulator, the flow restrictor and the gate valve with scales which are connected in parallel, so that the utility model has three working modes of manual regulation, automatic regulation and quantitative regulation for the air and the fuel gas. The manual adjustment means that the flow is adjusted by manually rotating a gate valve with scales; the automatic adjustment means that the flow rate is adjusted by a flow regulator; quantitative regulation refers to regulation of flow through a restrictor. The three working modes are mutually verified through flow and pressure, and then the working mode with the simplest structure and the most reliable structure is selected and determined to be applied to the ignition gun through a testing device; meanwhile, the gas and air working modes can be selected according to the requirements, and different combined ignition gas and air proportioning modes such as manual-manual mode, manual-automatic mode and the like are formed.
Preferably, the flow restrictor 5 has a cylindrical structure, a through hole is formed along the central axis in a penetrating manner, and two ends of the flow restrictor 5 have a threaded structure.
Preferably, the pilot fuel gas line and the air line are provided with a filter 1 near the inlet end, which filters impurities in the medium to prevent the ignition gun from being blocked and the ignition electrode from being polluted.
Preferably, an outlet valve 8 is arranged on the pilot fuel gas pipeline and the air pipeline near the outlet end, a vent valve 7 connected with the outlet valve 8 in parallel is arranged at the tail end of the parallel pipeline of the flow regulator 3 and the flow restrictor 5, the tail end of the vent valve 7 is communicated with the outside, a flow meter 17 is further arranged on a branch pipe where the vent valve is located, the output end of the flow meter 17 is connected with the input end of the vent valve 7, and a signal of the flow meter 17 is also connected to the controller. According to the utility model, through the cooperation operation of closing the outlet valve and opening the vent valve, the quality inspection of the pilot fuel gas and air before ignition and the replacement of the process pipeline with nitrogen before the sewage disposal device is started can be realized, the ignition gun is in a nitrogen purging protection state during the operation of the device, and the flowmeter 17 can be used for off-line flow measurement and matching condition inspection before each flow of the ignition gun air-fuel gas matching test device enters the ignition gun. .
Preferably, the switching valve, the emptying valve and the outlet valve can be electromagnetic valves or directly replaced by electromagnetic valves.
Preferably, the quick-mounting connectors 14 are arranged at the outlet end and the inlet end of the ignition fuel gas pipeline and the air pipeline, and compared with the prior ignition fuel gas, the ignition air pipeline and the ignition gun which are in flange connection, the workload of disassembling and mounting the ignition gun can be effectively reduced through the connection mode of the quick-mounting connectors.
Preferably, the device further comprises a mounting box 16, wherein the pilot fuel gas pipeline and the air pipeline are both arranged in the mounting box 16, and the outlet end and the inlet end extend out of the mounting box 16, so that the whole operation, use and transportation of the testing device are facilitated.
Preferably, the controller adopts a controller with a control function of an RTU or a PLC.
Preferably, the quick connector 14 is connected to the end of the pipeline by means of a connecting flange 13.
Preferably, a touch operation screen is provided on the outer surface of the mounting box 16, and is connected with the controller in data communication. The touch operation screen can display the flow chart of the testing device and the state of the monitoring parameters, and can set the parameters and select the proportioning mode.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the scope of the utility model, but to limit the utility model to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (10)
1. The air-gas ratio testing device for the ignition gun is characterized by comprising a pilot fuel gas pipeline and an air pipeline, wherein the inlet end of the pilot fuel gas pipeline is used for being connected with fuel gas, the outlet end of the pilot fuel gas pipeline is used for being connected with the ignition gun, the inlet end of the air pipeline is used for being connected with instrument wind, and the outlet end of the air pipeline is used for being connected with the ignition gun;
the pilot fuel gas pipeline and the air pipeline are respectively provided with a flow regulator (3), two ends of the flow regulator (3) are respectively provided with a pressure transmitter (2), the pilot fuel gas pipeline and the air pipeline are also provided with a flow restrictor (5) connected with the flow regulator (3) in parallel, and two ends of the flow regulator (3) and the flow restrictor (5) are respectively provided with a switching valve (6);
the valve also comprises a gate valve (4) with scales, which is arranged in parallel with the flow regulator (3) and the restrictor (5);
the intelligent control system further comprises a controller, wherein the input end of the controller is connected with the flow regulator (3) and the pressure transmitter (2), and the output end of the controller is connected with the flow regulator (3) and the switching valve (6).
2. The device for testing the air-fuel ratio of the ignition gun according to claim 1, wherein the flow restrictor (5) is of a cylindrical structure, a through hole is formed along the center axis in a penetrating manner, and two ends of the flow restrictor (5) are of a threaded structure.
3. A device for testing the air-fuel mixture ratio of an ignition gun according to claim 1, wherein a filter (1) is arranged on the ignition fuel gas line and the air line near the inlet end.
4. The air-fuel gas proportioning testing device of the ignition gun according to claim 1, wherein an outlet valve (8) is arranged on a pilot fuel gas pipeline and an air pipeline close to an outlet end, an emptying valve (7) connected with the outlet valve (8) in parallel is arranged at the tail end of a parallel pipeline of a flow regulator (3) and a flow restrictor (5), the tail end of the emptying valve (7) is communicated with the outside, a flowmeter (17) is arranged on a branch pipe where the emptying valve (7) is arranged, and the output end of the flowmeter (17) is connected with the input end of the emptying valve (7).
5. The device for testing the air-fuel ratio of the ignition gun according to claim 1, wherein the quick-mounting connectors (14) are arranged at the outlet end and the inlet end of the ignition fuel gas pipeline and the air pipeline.
6. The air-fuel gas proportioning testing apparatus of claim 1, further comprising a mounting case (16), wherein the pilot fuel gas line and the air line are both mounted in the mounting case (16), and wherein the outlet end and the inlet end extend out of the mounting case (16).
7. The device for testing the air-fuel ratio of the ignition gun according to claim 1, wherein the controller is a controller with a control function by using an RTU or a PLC.
8. The device for testing the air-fuel ratio of the ignition gun according to claim 5, wherein the quick-mounting connector (14) is connected with the end part of the pipeline through a connecting flange (13).
9. The device for testing the air-fuel ratio of the ignition gun according to claim 6, wherein a touch operation screen is arranged on the outer surface of the installation box body (16) and is in data communication connection with the controller.
10. The device for testing the air-fuel ratio of the ignition gun according to claim 4, wherein the switching valve (6), the emptying valve (7) and the outlet valve (8) are all electromagnetic valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320659737.9U CN219284653U (en) | 2023-03-29 | 2023-03-29 | Air-gas ratio testing device for ignition gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320659737.9U CN219284653U (en) | 2023-03-29 | 2023-03-29 | Air-gas ratio testing device for ignition gun |
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| Publication Number | Publication Date |
|---|---|
| CN219284653U true CN219284653U (en) | 2023-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320659737.9U Active CN219284653U (en) | 2023-03-29 | 2023-03-29 | Air-gas ratio testing device for ignition gun |
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| CN (1) | CN219284653U (en) |
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- 2023-03-29 CN CN202320659737.9U patent/CN219284653U/en active Active
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