Equivalent natural gas burner

Abstract

The utility model provides an equivalent natural gas burner which comprises a bottom plate, a rack is installed at the upper end of the bottom plate, a burner body is installed at the upper end of the rack, a first pipe is arranged at the right end of the burner body in a communicating mode, a cooler is installed at the right end of the first pipe in a communicating mode, the cooler is installed at the upper end of the rack, and a second pipe is arranged at the right end of the cooler in a communicating mode. The right end of the second pipe communicates with the combustion tank, the combustion tank is arranged at the upper end of the rack, the right end of the combustion tank communicates with the conveying pipe, the right end of the conveying pipe communicates with the reaction part, the reaction part is arranged at the upper end of the bottom plate, and the igniter is arranged at the upper end of the combustion tank. And finally, the combustion ratio of natural gas to air is equivalent, and the environment experienced by the three-way catalyst is effectively simulated, so that a traditional natural gas engine bench is replaced to carry out an aging test, and the test cost is effectively reduced.

Description

Technical Field

[0001] The utility model is an equivalent natural gas burner, belonging to the technical field of burners. Background Art

[0002] The three-way catalyst is the most important purification agent installed in the automobile exhaust system. When the high-temperature automobile exhaust comes into contact with the three-way catalyst, the three-way catalyst will enhance the activity of the three gases CO, HC and NOx in the automobile exhaust, prompting them to undergo certain oxidation-reduction chemical reactions, turning the three harmful gases into harmless gases, thereby purifying the automobile exhaust. In order to ensure the durability of the three-way catalyst, the prepared three-way catalyst is generally subjected to aging tests.

[0003] Currently, the mainstream method for verifying the durability performance of three-way catalysts is the four-operating cycle recommended by regulations (GB 18352.6-2016). Natural gas engines are generally used to achieve high-temperature rapid aging. In this aging method, the environment experienced by the three-way catalyst is similar to that on the engine test bench or vehicle, which improves verification efficiency. However, the complex structure of the engine test bench leads to high costs and high consumption during operation, resulting in a huge expenditure of this verification method and high testing costs. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the purpose of the present invention is to provide an equivalent natural gas burner to solve the problems raised in the above-mentioned background technology. The present invention uses multi-stage linkage combustion to finally achieve an equivalent combustion ratio of natural gas and air, and effectively simulates the environment experienced by the three-way catalyst, thereby replacing the traditional natural gas engine bench for aging testing and effectively reducing testing costs.

[0005] To achieve the above object, the present invention is implemented through the following technical solution: an equivalent natural gas burner, comprising a base plate, a frame mounted on the upper end of the base plate, a burner body arranged horizontally mounted on the upper end of the frame, a first pipe connected to the right end of the burner body, a cooler mounted on the upper end of the frame, and a second pipe connected to the right end of the cooler;

[0006] The right end of the second tube is connected to a combustion tank, which is arranged at the upper end of the frame. The right end of the combustion tank is connected to a delivery pipe, which is connected to a reaction piece, which is arranged at the upper end of the bottom plate and is located on the right side of the frame.

[0007] The front end of the burner body is connected to an air inlet pipe, the front end of the burner body is connected to an air inlet pipe, and the air inlet pipe is located on the right side of the air inlet pipe. An igniter is installed at the upper end of the combustion tank, and the lower end of the igniter extends into the combustion tank.

[0008] Furthermore, the reaction element includes a hose, which is connected to the right end of the delivery pipe, and the right end of the hose is connected to the first tapered cylinder arranged with a narrow left side and a wide right side;

[0009] The right end of the first conical cylinder is connected to a reaction tank, a lifting assembly is installed at the lower end of the reaction tank, and the lifting assembly is arranged at the upper end of the bottom plate. The right end of the reaction tank is connected to a second conical cylinder arranged to be wider on the left and narrower on the right, and a through pipe is connected to the right end of the second conical cylinder.

[0010] Furthermore, the lifting assembly includes a straight tube, which is mounted on the upper end of the base plate, the upper end of the straight tube is threadedly connected to a stud, and the lower end of the stud extends into the straight tube;

[0011] The upper end of the stud is rotatably connected to an arc-shaped support plate, and the arc-shaped support plate is fitted on the lower outer end of the reaction tank. The right end of the arc-shaped support plate is hinged to the lower end of the reaction tank. Multiple handle rods are equidistantly arranged on the upper outer end of the stud, and the handle rods are located on the upper side of the straight cylinder. The multiple handle rods are arranged in a circle.

[0012] Furthermore, a first air extraction device is installed on the upper end of the base plate, and the first air extraction device is located on the front side of the rack. The inlet of the first air extraction device is connected to a first connecting pipe, and the other end of the first connecting pipe is connected to the air inlet pipe.

[0013] The outlet of the first air extraction device is connected to a second connecting pipe, the other end of which is connected to a second transversely arranged main pipe, and the second main pipe is located on the front side of the frame. The left rear end of the second main pipe is connected to a first compensation pipe with a control valve, and the first compensation pipe is connected and installed on the front end of the combustion tank;

[0014] The rear end of the second main pipe is symmetrically connected to and installed with two second compensation pipes with control valves, and the two second compensation pipes are symmetrically connected and arranged on the front end of the delivery pipe.

[0015] Furthermore, a second air extraction device is installed on the upper end of the bottom plate, and the second air extraction device is located at the rear side of the rack, and the outlet of the second air extraction device is connected to the third connecting pipe;

[0016] The other end of the third connecting pipe is connected to a first manifold arranged transversely, and the first manifold is located at the rear side of the frame. The front end of the left side of the first manifold is connected to a first air supply pipe with a control valve installed, and the first air supply pipe is connected to the rear end of the combustion tank;

[0017] The front end of the first main pipe is symmetrically connected to and installed with two second air supply pipes with control valves, and the two second air supply pipes are symmetrically connected and arranged on the rear end of the delivery pipe.

[0018] Furthermore, a controller is installed at the upper right end of the base plate, and the controller is located on the front side of the arc-shaped support plate. An air-fuel ratio sensor is installed at the front end of the right side of the delivery pipe, and the air-fuel ratio sensor extends into the delivery pipe. The air-fuel ratio sensor is electrically connected to the controller, and the air-fuel ratio sensor is located on the right side of the second compensation pipe.

[0019] Furthermore, a first sensor is installed at the upper end of the first tube, and the first sensor extends into the first tube; a second sensor is installed at the upper end of the second tube, and the second sensor extends into the second tube; a third sensor is installed at the upper end of the delivery tube, and the third sensor extends into the delivery tube;

[0020] A fourth sensor is provided at the upper end of the first conical cylinder and extends into the first conical cylinder. A fifth sensor is installed at the upper end of the reaction tank and extends into the reaction tank. The controller is electrically connected to the first sensor, the second sensor, the third sensor, the fourth sensor and the fifth sensor respectively.

[0021] Beneficial effects of the utility model:

[0022] 1. The burner body is used to perform the initial lean combustion of natural gas and generate high-temperature exhaust gas. The high-temperature exhaust gas is cooled by the cooler, and the cooled exhaust gas is subjected to secondary combustion using the combustion tank and igniter, thereby controlling the oxygen reduction of the exhaust gas. Through multi-stage linkage combustion, the combustion ratio of natural gas and air is finally achieved to be equivalent. The equivalent gas is transported to the reaction tank to perform an aging test on the three-way catalyst in the reaction tank, effectively simulating the environment experienced by the three-way catalyst in the reaction tank, thereby replacing the traditional natural gas engine bench for aging testing and effectively reducing the test cost.

[0023] 2. Use the air supply pump, the third connecting pipe, the first main pipe, the compensation pump, the first connecting pipe, the second connecting pipe, the second main pipe, the air-fuel ratio sensor, the controller, the second air supply pipe and the second compensation pipe to deliver air and natural gas into the delivery pipe to adjust the gas ratio concentration in the delivery pipe, effectively ensure the simulated environment effect, and improve the experimental quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0025] Figure 1 This is a structural diagram of an equivalent natural gas burner of the utility model;

[0026] Figure 2 This is an assembly diagram of a reaction tank, arc-shaped support plate, studs and straight cylinder in an equivalent natural gas burner of the utility model;

[0027] In the figure: 1-base plate, 2-frame, 3-burner body, 4-first pipe, 5-cooler, 6-second pipe, 7-combustion tank, 8-delivery pipe, 9-reaction tank, 11-controller, 12-air supply pump, 13-compensation pump, 14-first connecting pipe, 31-air inlet pipe, 32-inlet pipe, 71-igniter, 72-first air supply pipe, 73-first main pipe, 74-first compensation pipe, 75-second connecting pipe, 81-second air supply pipe, 82-hose, 83-air-fuel ratio sensor, 84-second compensation pipe, 85-second main pipe, 86-third connecting pipe, 91-first tapered cylinder, 92-second tapered cylinder, 93-through pipe, 94-arc support plate, 95-stud, 96-straight cylinder, 951-handle rod. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0029] See also Figure 1 The utility model provides a technical solution: an equivalent natural gas burner, comprising a base plate 1, a frame 2 is mounted on the upper end of the base plate 1, the base plate 1 provides a mounting carrier for the frame 2 and other components, and a burner body 3 arranged horizontally is mounted on the upper end of the frame 2, the frame 2 can be used to lift the burner body 3 and other components, and then an air intake pipe 32 is connected to the front end of the burner body 3, and natural gas is transported into the burner body 3 through the air intake pipe 32, and an air intake pipe 31 located on the right side of the air intake pipe 32 is connected to the front end of the burner body 3, and air is transported into the burner body 3 by using the air intake pipe 31. The burner body 3 generally adopts a lean combustion burner;

[0030] The first pipe 4 is connected to the right end of the burner body 3, and the cooler 5 installed on the upper end of the frame 2 is connected to the right end of the first pipe 4. The exhaust gas generated in the burner body 3 is transported to the cooler 5 through the first pipe 4. The second pipe 6 is connected to the right end of the cooler 5 to cool the exhaust gas through the cooler 5. The cooler 5 can be an EGR cooler 5.

[0031] The combustion pot 7 provided at the upper end of the frame 2 is connected and installed on the right end of the second pipe 6. The cooled exhaust gas is transported into the combustion pot 7 through the second pipe 6. An igniter 71 whose lower end extends into the combustion pot 7 is installed on the upper end of the combustion pot 7. The igniter 71 cooperates with the combustion pot 7 to perform secondary combustion on the cooled exhaust gas. The delivery pipe 8 is connected and installed on the right end of the combustion pot 7. The gas formed after the secondary combustion is transported through the delivery pipe 8.

[0032] A hose 82 is connected to the right end of the delivery pipe 8. A first tapered cylinder 91, which is narrow on the left and wide on the right, is connected to the right end of the hose 82. The hose 82 connects the first tapered cylinder 91 to the delivery pipe 8. A reaction tank 9 is connected to the right end of the first tapered cylinder 91 to provide space for the gas to react with the three-way catalyst.

[0033] The second air extraction device located at the rear side of the rack 2 is installed on the upper end of the bottom plate 1, and the third connecting pipe 86 is connected and installed to the outlet of the second air extraction device. Then, the first main pipe 73 located at the rear side of the rack 2 and arranged horizontally is connected and installed to the other end of the third connecting pipe 86. The second air extraction device and the third connecting pipe 86 are used in conjunction with each other to transport air into the first main pipe 73. The second air extraction device can use an air supply pump 12;

[0034] A first air supply pipe 72 with a control valve connected to the rear end of the combustion pot 7 is connected and installed to the front end of the left side of the first main pipe 73. Air is supplied to the combustion pot 7 through the first air supply pipe 72. Two second air supply pipes 81 with control valves connected to the rear end of the delivery pipe 8 are symmetrically connected and installed to the front end of the first main pipe 73. The two second air supply pipes 81 are used in conjunction with each other to supply air to the delivery pipe 8.

[0035] Install the first air extraction device located at the front side of the rack 2 on the upper end of the base plate 1, and connect the first connecting pipe 14, whose other end is connected to the air intake pipe 32, to the inlet portion of the first air extraction device. Then connect the second connecting pipe 75 to the outlet portion of the first air extraction device. Connect the second manifold 85, which is located at the front side of the rack 2 and arranged horizontally, to the other end of the second connecting pipe 75. The first connecting pipe 14, the first air extraction device, and the second connecting pipe 75 work together to transport the natural gas flowing in the air intake pipe 32 to the second manifold 85. The first air extraction device can use a compensating pump 13.

[0036] A first compensation pipe 74 with a control valve connected to the front end of the combustion tank 7 is connected to the left rear end of the second main pipe 85. Natural gas is supplied to the combustion tank 7 through the first compensation pipe 74. Two second compensation pipes 84 with control valves connected to the front end of the delivery pipe 8 are symmetrically connected and installed to the rear end of the second main pipe 85. The two second compensation pipes 84 are used in conjunction with each other to supply natural gas to the delivery pipe 8.

[0037] An air-fuel ratio sensor 83 extending into the delivery pipe 8 and located to the right of the second compensation pipe 84 is installed on the front end of the right side of the delivery pipe 8. The air-fuel ratio sensor 83 is used to detect the air-fuel ratio in the delivery pipe 8. A first sensor extending into the first pipe 4 is installed on the upper end of the first pipe 4. The first sensor is used to detect the temperature of the exhaust gas transported in the first pipe 4. A second sensor extending into the second pipe 6 is set on the upper end of the second pipe 6. The second sensor is used to detect the temperature of the exhaust gas transported in the second pipe 6.

[0038] A third sensor extending into the delivery pipe 8 is mounted on the upper end of the delivery pipe 8 to detect the temperature of the gas flowing in the delivery pipe 8. A fourth sensor extending into the first conical cylinder 91 is mounted on the upper end of the first conical cylinder 91 to detect the temperature of the gas flowing in the first conical cylinder 91.

[0039] The fifth sensor extending into the reaction tank 9 is installed on the upper end of the reaction tank 9. The fifth sensor is used to detect the experimental temperature in the reaction tank 9, and the controller 11 located on the front side of the arc-shaped support plate 94 and electrically connected to the air-fuel ratio sensor 83, the first sensor, the second sensor, the third sensor, the fourth sensor and the fifth sensor is installed on the upper right end of the base plate 1. Through the controller 11, the collected data can be analyzed and calculated, and electronic components such as the air supply pump 12 and the compensation pump 13 can be controlled.

[0040] When in use, natural gas is first delivered to the burner body 3 through the air inlet pipe 32, and air is simultaneously delivered to the burner body 3 through the air inlet pipe 31. At this time, ignition is performed in the burner body 3, so that the natural gas is burned in a lean manner in the burner body 3, thereby generating high-temperature exhaust gas;

[0041] The high-temperature exhaust gas is then transported to the cooler 5 through the first pipe 4. The cooler 5 cools the high-temperature exhaust gas. The cooled exhaust gas is then transported to the combustion tank 7 through the second pipe 6. At the same time, the exhaust gas is subjected to secondary combustion in the combustion tank 7 by the igniter 71, thereby reducing the oxygen content of the exhaust gas. Finally, through multi-stage linkage combustion, the combustion ratio of natural gas to air is achieved to be equivalent.

[0042] The deoxygenated gas is then delivered to the reaction tank 9 through the delivery pipe 8 and the first tapered cylinder 91, thereby performing an aging test on the three-way catalyst in the reaction tank 9. This effectively simulates the environment experienced by the three-way catalyst in the reaction tank 9, thereby replacing the traditional natural gas engine bench for aging testing and effectively reducing testing costs.

[0043] In addition, the air supply pump 12 and the compensation pump 13 are started. The air supply pump 12 works to deliver the outside air along the third connecting pipe 86, the first main pipe 73 and the first air supply pipe 72 to the combustion tank 7, thereby providing oxygen for the secondary combustion in the combustion tank 7. The compensation pump 13 works to deliver the natural gas in the intake pipe 32 along the first connecting pipe 14, the second connecting pipe 75, the second main pipe 85 and the first compensation pipe 74 to the combustion tank 7, thereby providing natural gas for the ignition of the secondary combustion in the combustion tank 7.

[0044] The air-fuel ratio sensor 83 collects the air-fuel ratio data of the gas transported in the delivery pipe 8, transmits the air-fuel ratio information to the controller 11, analyzes and calculates the air-fuel ratio data, and then controls the air supply pump 12, the compensation pump 13, the control valve on the second air supply pipe 81, and the control valve on the second compensation pipe 84 to operate, thereby transporting air and natural gas into the delivery pipe 8, adjusting the gas ratio concentration in the delivery pipe 8, effectively ensuring the simulated environment effect, and improving the experimental quality.

[0045] like Figure 1 and Figure 2 As shown, the second conical cylinder 92, which is arranged to be wider on the left and narrower on the right, is connected and installed on the right end of the reaction tank 9. The second conical cylinder 92 can be used to collect waste from the reaction tank 9 to facilitate discharge operations, and the through pipe 93 is connected and set on the right end of the second conical cylinder 92. The second conical cylinder 92 and the through pipe 93 are used in conjunction to discharge the gas generated in the reaction tank 9.

[0046] A straight cylinder 96 is installed on the upper end of the base plate 1, and a stud 95 extending from the lower end into the straight cylinder 96 is threadedly connected to the upper end of the straight cylinder 96. The arc-shaped support plate 94 attached to the lower outer end of the reaction tank 9 is rotatably connected to the upper end of the stud 95. The straight cylinder 96, the stud 95 and the arc-shaped support plate 94 are used in conjunction with each other to lift the reaction tank 9.

[0047] The right end of the arc-shaped support plate 94 is hinged to the lower end of the reaction tank 9 by a hinge, and multiple handle rods 951 arranged in a circle and located on the upper side of the straight cylinder 96 are equidistantly set on the upper outer end of the stud 95. The multiple handle rods 951 are used together to facilitate the rotation of the stud 95.

[0048] After the aging test of the three-way catalyst in the reaction tank 9 is completed, the stud 95 is rotated. Since the stud 95 is threadedly connected to the straight cylinder 96, the stud 95 rotates and moves downward, thereby moving the arc-shaped support plate 94 downward, so that the reaction tank 9 rotates around the hinge, and the reaction tank 9 is tilted with the left side higher and the right side lower, so that the aged three-way catalyst in the reaction tank 9 enters the second tapered cylinder 92;

[0049] The second conical cylinder 92 will collect the aged three-way catalyst to the connection position between the second conical cylinder 92 and the through pipe 93, and then discharge the aged three-way catalyst through the through pipe 93. The discharged aged three-way catalyst is then tested to complete the experimental operation, so as to realize the convenient material extraction of the aged three-way catalyst in the reaction tank 9, effectively reduce the material extraction time, and improve work efficiency.

[0050] Although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An equivalent natural gas burner, characterized in that: The invention comprises a base plate (1), a frame (2) is installed on the upper end of the base plate (1), a burner body (3) arranged transversely is installed on the upper end of the frame (2), a first pipe (4) is connected to the right end of the burner body (3), a cooler (5) is installed on the right end of the first pipe (4), and the cooler (5) is installed on the upper end of the frame (2), and a second pipe (6) is connected to the right end of the cooler (5); The right end of the second tube (6) is connected to a combustion tank (7) and the combustion tank (7) is arranged at the upper end of the frame (2); the right end of the combustion tank (7) is connected to a delivery pipe (8) and the right end of the delivery pipe (8) is connected to a reaction piece, the reaction piece is arranged at the upper end of the bottom plate (1), and the reaction piece is located on the right side of the frame (2); The front end of the burner body (3) is connected to an air inlet pipe (32), the front end of the burner body (3) is connected to an air inlet pipe (31), and the air inlet pipe (31) is located on the right side of the air inlet pipe (32). An igniter (71) is installed at the upper end of the combustion tank (7), and the lower end of the igniter (71) extends into the combustion tank (7).

2. The equivalent natural gas burner according to claim 1, characterized in that: The reaction element comprises a hose (82), the hose (82) being connected to the right end of the delivery pipe (8), and the right end of the hose (82) being connected to a first conical cylinder (91) arranged to be narrow on the left and wide on the right; The right end of the first conical cylinder (91) is connected to a reaction tank (9), a lifting assembly is installed at the lower end of the reaction tank (9), and the lifting assembly is arranged at the upper end of the bottom plate (1), the right end of the reaction tank (9) is connected to a second conical cylinder (92) arranged to be wider on the left and narrower on the right, and the right end of the second conical cylinder (92) is connected to a through pipe (93).

3. The equivalent natural gas burner according to claim 2, characterized in that: The lifting assembly includes a straight cylinder (96), the straight cylinder (96) is installed on the upper end of the base plate (1), the upper end of the straight cylinder (96) is threadedly connected to the stud (95), and the lower end of the stud (95) extends into the straight cylinder (96); The upper end of the stud (95) is rotatably connected to the arc-shaped support plate (94), and the arc-shaped support plate (94) is fitted on the lower outer end of the reaction tank (9). The right end of the arc-shaped support plate (94) is hinged to the lower end of the reaction tank (9). A plurality of handle rods (951) are equidistantly arranged on the upper outer end of the stud (95), and the handle rods (951) are located on the upper side of the straight cylinder (96). The plurality of handle rods (951) are arranged in a circular shape.

4. The equivalent natural gas burner according to claim 1, characterized in that: A first air extraction device is installed at the upper end of the base plate (1), and the first air extraction device is located at the front side of the frame (2); an inlet portion of the first air extraction device is connected to a first connecting pipe (14) installed thereon, and the other end of the first connecting pipe (14) is connected to an air inlet pipe (32); The outlet of the first air extraction device is connected to a second connecting pipe (75), the other end of the second connecting pipe (75) is connected to a second transversely arranged main pipe (85), and the second main pipe (85) is located at the front side of the frame (2). The left rear end of the second main pipe (85) is connected to a first compensation pipe (74) with a control valve, and the first compensation pipe (74) is connected and installed on the front end of the combustion tank (7); The rear end of the second main pipe (85) is symmetrically connected to and installed with two second compensation pipes (84) with control valves, and the two second compensation pipes (84) are symmetrically connected and arranged on the front end of the delivery pipe (8).

5. The equivalent natural gas burner according to claim 1, characterized in that: A second air extraction device is installed at the upper end of the base plate (1), and the second air extraction device is located at the rear side of the frame (2), and an outlet of the second air extraction device is connected to a third connecting pipe (86); The other end of the third connecting pipe (86) is connected to a first manifold (73) arranged transversely, and the first manifold (73) is located at the rear side of the frame (2). The front end of the left side of the first manifold (73) is connected to a first air supply pipe (72) with a control valve, and the first air supply pipe (72) is connected to the rear end of the combustion tank (7). Two second air supply pipes (81) with control valves are symmetrically connected and installed at the front end of the first main pipe (73), and the two second air supply pipes (81) are symmetrically connected and arranged on the rear end of the delivery pipe (8).

6. The equivalent natural gas burner according to claim 3, characterized in that: A controller (11) is installed at the upper right end of the base plate (1), and the controller (11) is located in front of the arc-shaped support plate (94). An air-fuel ratio sensor (83) is installed at the front end of the right side of the delivery pipe (8), and the air-fuel ratio sensor (83) extends into the delivery pipe (8). The air-fuel ratio sensor (83) is electrically connected to the controller (11), and the air-fuel ratio sensor (83) is located on the right side of the second compensation pipe (84).

7. The equivalent natural gas burner according to claim 6, characterized in that: A first sensor is installed at the upper end of the first tube (4), and the first sensor extends into the first tube (4); a second sensor is provided at the upper end of the second tube (6), and the second sensor extends into the second tube (6); a third sensor is installed at the upper end of the delivery tube (8), and the third sensor extends into the delivery tube (8); A fourth sensor is provided at the upper end of the first conical cylinder (91), and the fourth sensor extends into the first conical cylinder (91); a fifth sensor is installed at the upper end of the reaction tank (9), and the fifth sensor extends into the reaction tank (9); and the controller (11) is electrically connected to the first sensor, the second sensor, the third sensor, the fourth sensor, and the fifth sensor, respectively.

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