Airtightness testing apparatus for a burner

Abstract

The application provides a gas tightness detection equipment of a burner, and belongs to the technical field of gas tightness detection. The gas tightness detection equipment of the burner comprises a workbench, a gas tightness detection device is connected to the top of the workbench, a fixing frame is connected to the top of the workbench, an adjusting mechanism for fixing elbow flanges of different sizes is arranged in the fixing frame, a limiting mechanism is arranged above the bottom plate, the track plate is driven to rotate by a control motor, the vertical rod is driven to slide in the sliding groove, the moving part moves in the moving track, the positions of the four groups of pressing plates are adjusted, the pressing plates contact the top of the flat surface of the top of the elbow flange, and thus the problem that the bottom of the pressing part is prone to be lifted up when the pressing part presses the elbow flange due to the irregular shape of the elbow flange, the internal gas pressure of the elbow flange is leaked, and the gas tightness detection precision of the elbow flange is affected is solved.

Description

Technical Field

[0001] This application relates to the field of airtightness testing, and more specifically, to an airtightness testing device for a burner. Background Technology

[0002] A burner is a device that mixes fuel (such as natural gas or oil) with air in an appropriate ratio and ignites it, converting chemical energy into heat energy through a chemical reaction. Fuel (such as natural gas or diesel) is sprayed out through a nozzle and mixed with air supplied by a blower in a premixing device to form a combustible mixture. The mixing ratio is controlled by a regulating valve to ensure combustion efficiency and stability.

[0003] In the existing technology, by setting up air tightness testing equipment, it is possible to test the air tightness of some structural components of the burner (such as elbow flanges) to ensure the sealing performance of the burner. When testing the elbow flange, the elbow flange is fixed inside the mounting bracket to ensure that the inside of the elbow flange is in a sealed state. By controlling the air tightness testing equipment to input a certain pressure into the inside of the elbow flange, and by observing the pressure change, it is possible to determine whether the air tightness of the elbow flange is qualified.

[0004] However, existing air tightness testing equipment still has the following shortcomings in use: Most existing fixing frames apply pressure from top to bottom through hydraulic rods, and press down on the bent part of the elbow flange with the pressure component to fix the elbow flange above the base plate. However, because the shape of the elbow flange is not regular, when the pressure component presses down on the elbow flange, the bottom is prone to lifting up, causing leakage of air pressure inside the elbow flange and affecting the air tightness testing accuracy of the elbow flange. Utility Model Content

[0005] To overcome the above deficiencies, this application provides a burner air tightness testing device, which aims to improve the problem that the irregular shape of the elbow flange causes the bottom of the elbow flange to easily lift up when the pressure component is pressed down, resulting in leakage of internal air pressure and affecting the air tightness testing accuracy of the elbow flange.

[0006] This application provides a burner air tightness testing device, including a workbench, an air tightness testing device connected to the top of the workbench, and a fixed frame connected to the top of the workbench. The air tightness testing device can determine whether the air tightness of the elbow flange is qualified by inputting a certain pressure into the inside of the elbow flange and observing the pressure change.

[0007] The fixing frame includes a base plate, which is disposed inside the fixing frame. An elbow flange is disposed above the base plate. An adjustment mechanism for fixing elbow flanges of different sizes is disposed inside the fixing frame. A limiting mechanism for limiting the elbow flange is disposed above the base plate.

[0008] The adjustment mechanism includes four sets of lower pressure plates, all of which are positioned above the flat surface at the top of the elbow flange.

[0009] In one specific implementation, a lifting plate is slidably connected inside the fixed frame, a rotating component is rotatably connected to the bottom of the lifting plate, a motor is connected to the top of the lifting plate, and the output shaft of the motor passes through the lifting plate and is connected to the top of the rotating component.

[0010] In the above implementation process, by setting up the motor, the output shaft of the motor can be controlled to rotate, thereby driving the rotating parts to rotate.

[0011] In one specific implementation, the bottom of the rotating component is connected to a track plate, and the top of the track plate has four sets of sliding grooves.

[0012] In the above implementation process, by setting up a rotating component, the track plate can be driven to rotate when the rotating component rotates.

[0013] In one specific implementation, the bottom of the lifting plate is connected to four sets of moving rails, and the moving rails are slidably connected to moving parts.

[0014] In the above implementation process, by setting the moving track, the moving part can move inside the moving track, and the moving part can only move in the direction of the moving track.

[0015] In one specific implementation, a vertical rod is connected to the outer surface of the movable component, and the other end of the vertical rod is connected to the top of the lower pressure plate.

[0016] In the above implementation process, by setting up the vertical rod, the moving part can be driven to move inside the moving track when the vertical rod moves.

[0017] In one specific implementation, the vertical rod slides inside the sliding groove.

[0018] In the above implementation process, by setting the sliding groove, when the track plate rotates, the vertical rod can be driven to slide inside the sliding groove, which in turn drives the lower pressure plate to move. The position of the four sets of lower pressure plates can be adjusted according to the different sizes of elbow flanges, so that the lower pressure plate contacts the flat surface above the top of the elbow flange.

[0019] In one specific implementation, the limiting mechanism includes multiple sets of mounting components, all of which are connected to the top of the base plate, and four sets of longitudinal electric sliding rods and four sets of transverse electric sliding rods are connected between the multiple sets of mounting components.

[0020] In the above implementation process, by setting the mounting components, four sets of longitudinal electric slide rods and four sets of transverse electric slide rods can be installed on the top of the base plate.

[0021] In one specific implementation, the outer surfaces of the four sets of longitudinal electric slide rods are slidably connected to first sliders, and a first limiting plate is connected between the two sets of first sliders, with two sets of first limiting plates.

[0022] In the above implementation process, by setting the longitudinal electric slide bar, the first slider can slide on the outer surface of the longitudinal electric slide bar, driving the first limiting plate to move. By having two sets of first limiting plates closely attached to the outer surface of the elbow flange, the longitudinal direction of the elbow flange can be limited, preventing the elbow flange from moving back and forth during the airtightness test.

[0023] In one specific implementation, the outer surfaces of the four sets of transverse electric slide rods are slidably connected with second sliders, and a second limiting plate is connected between the two sets of second sliders, with two sets of second limiting plates.

[0024] In the above implementation process, by setting the transverse electric slide bar, the second slider can slide on the outer surface of the transverse electric slide bar, driving the second limiting plate to move. By having two sets of second limiting plates closely attached to the outer surface of the elbow flange, the transverse movement of the elbow flange can be limited, preventing the elbow flange from moving left or right during the airtightness test.

[0025] In one specific implementation, the horizontal height of the first limiting plate is higher than that of the second limiting plate.

[0026] In the above implementation process, by setting the horizontal height of the first limiting plate higher than that of the second limiting plate, the first limiting plate can move above the second limiting plate, so that the movement of the first limiting plate and the second limiting plate do not interfere with each other. The first limiting plate and the second limiting plate limit the elbow flange in the front, back, left and right directions, preventing the elbow flange from moving horizontally during the airtightness test.

[0027] Compared with the prior art, the beneficial effects of this application are as follows: By setting the adjustment mechanism and the limiting mechanism, the track plate can be rotated by controlling the motor, which in turn drives the vertical rod to slide inside the sliding groove, allowing the moving part to move inside the moving track. The position of the four sets of pressure plates is adjusted so that the pressure plates contact the flat surface above the top of the elbow flange. Furthermore, the elbow flange is limited in the front, back, left, and right directions by the first and second limiting plates, preventing the elbow flange from moving horizontally during the airtightness test. This solves the problem that because the shape of the elbow flange is not regular, the bottom of the pressure plate is prone to tilting up when the pressure plate is pressed down on the elbow flange, causing leakage of air pressure inside the elbow flange and affecting the airtightness test accuracy of the elbow flange. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of a burner airtightness testing device provided in an embodiment of this application;

[0030] Figure 2 A schematic diagram of the lifting plate structure provided for an embodiment of this application;

[0031] Figure 3 A schematic diagram of the elbow flange structure provided for an embodiment of this application;

[0032] Figure 4 A schematic diagram of the vertical rod structure provided for an embodiment of this application;

[0033] Figure 5 A schematic diagram of the moving track structure provided for an embodiment of this application;

[0034] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0035] Figure 7 A schematic diagram of the track slab structure provided for an embodiment of this application;

[0036] Figure 8 A schematic diagram of the base plate structure provided for an embodiment of this application.

[0037] In the diagram: 1. Workbench; 2. Adjustment mechanism; 201. Motor; 202. Lifting plate; 203. Lower pressure plate; 204. Track plate; 205. Vertical rod; 206. Rotating component; 207. Moving track; 208. Moving component; 209. Sliding groove; 3. Limiting mechanism; 301. Mounting component; 302. Longitudinal electric slide bar; 303. First slider; 304. First limiting plate; 305. Transverse electric slide bar; 306. Second slider; 307. Second limiting plate; 4. Fixing frame; 5. Air tightness testing device; 6. Base plate; 7. Elbow flange. Detailed Implementation

[0038] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0039] Please see Figure 1 This application provides a burner airtightness testing device, including a workbench 1.

[0040] Please see Figure 1 , Figure 2 and Figure 3 The top of the workbench 1 is connected to an airtightness testing device 5 and a fixed frame 4. The airtightness testing device 5 inputs a certain pressure into the inside of the elbow flange 7 and observes the pressure change to determine whether the airtightness of the elbow flange 7 is qualified.

[0041] The fixing frame 4 includes a base plate 6, which is located inside the fixing frame 4. An elbow flange 7 is located above the base plate 6. An adjustment mechanism 2 for fixing elbow flanges 7 of different sizes is located inside the fixing frame 4. A limiting mechanism 3 for limiting the elbow flange 7 is located above the base plate 6.

[0042] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 The adjusting mechanism 2 includes four sets of lower pressure plates 203, all of which are set above the flat surface at the top of the elbow flange 7.

[0043] In a specific configuration, a lifting plate 202 is slidably connected inside the fixed frame 4. A rotating component 206 is rotatably connected to the bottom of the lifting plate 202. A motor 201 is connected to the top of the lifting plate 202. The output shaft of the motor 201 passes through the lifting plate 202 and is connected to the top of the rotating component 206. By setting the motor 201, the rotating component 206 can be driven to rotate by controlling the rotation of the output shaft of the motor 201.

[0044] In a specific configuration, the bottom of the rotating component 206 is connected to a track plate 204, and the top of the track plate 204 is provided with four sets of sliding grooves 209.

[0045] In a specific configuration, the bottom of the lifting plate 202 is connected to four sets of moving rails 207, and a moving part 208 is slidably connected inside the moving rails 207. Through the configuration of the moving rails 207, the moving part 208 can move inside the moving rails 207, and the moving part 208 can only move in the direction of the moving rails 207.

[0046] In a specific configuration, the outer surface of the movable component 208 is connected to a vertical rod 205, and the other end of the vertical rod 205 is connected to the top of the lower pressure plate 203. The vertical rod 205 enables the movable component 208 to move inside the moving track 207 when the vertical rod 205 moves.

[0047] In the specific setting, the vertical rod 205 slides inside the sliding groove 209. The sliding groove 209 allows the vertical rod 205 to slide inside the sliding groove 209 when the track plate 204 rotates, thereby moving the lower pressure plate 203. The position of the four sets of lower pressure plates 203 can be adjusted according to the different sizes of elbow flanges 7, so that the lower pressure plate 203 contacts the flat surface above the top of the elbow flange 7.

[0048] In a specific configuration, the limiting mechanism 3 includes multiple sets of mounting components 301, all of which are connected to the top of the base plate 6. Four sets of longitudinal electric slide rods 302 and four sets of transverse electric slide rods 305 are connected between the multiple sets of mounting components 301. The mounting components 301 enable the four sets of longitudinal electric slide rods 302 and four sets of transverse electric slide rods 305 to be mounted on the top of the base plate 6.

[0049] In the specific setup, the outer surfaces of the four sets of longitudinal electric slide rods 302 are slidably connected with first sliders 303, and a first limiting plate 304 is connected between the two sets of first sliders 303. There are two sets of first limiting plates 304. The longitudinal electric slide rods 302 enable the first sliders 303 to slide on the outer surface of the longitudinal electric slide rods 302, thereby moving the first limiting plates 304. By having the two sets of first limiting plates 304 closely attached to the outer surface of the elbow flange 7, the longitudinal direction of the elbow flange 7 can be limited, preventing the elbow flange 7 from moving back and forth during the airtightness test.

[0050] In the specific setup, the outer surfaces of the four sets of transverse electric slide rods 305 are slidably connected with second sliders 306, and a second limiting plate 307 is connected between the two sets of second sliders 306. There are two sets of second limiting plates 307. The transverse electric slide rods 305 enable the second sliders 306 to slide on the outer surface of the transverse electric slide rods 305, thereby moving the second limiting plates 307. By having the two sets of second limiting plates 307 closely attached to the outer surface of the elbow flange 7, the transverse direction of the elbow flange 7 can be limited, preventing the elbow flange 7 from moving left or right during the airtightness test.

[0051] In the specific setting, the horizontal height of the first limiting plate 304 is higher than that of the second limiting plate 307. By setting the horizontal height of the first limiting plate 304 higher than that of the second limiting plate 307, the first limiting plate 304 can move above the second limiting plate 307, so that the movement of the first limiting plate 304 and the second limiting plate 307 do not interfere with each other. The first limiting plate 304 and the second limiting plate 307 limit the elbow flange 7 in the front, back, left and right directions, preventing the elbow flange 7 from moving horizontally during the airtightness test.

[0052] The working principle of the burner's airtightness testing equipment is as follows: When using the burner's airtightness testing equipment, the motor 201 can be controlled to drive the track plate 204 to rotate, causing the vertical rod 205 to slide inside the sliding groove 209, so that the moving part 208 moves inside the moving track 207. The position of the four sets of lower pressure plates 203 is adjusted so that the lower pressure plates 203 contact the flat surface above the top of the elbow flange 7. Furthermore, by controlling the longitudinal electric slide rod 302 and the transverse electric slide rod 305, the first slider 303 and the second slider 306 are moved, thus driving the first... The limiting plate 304 and the second limiting plate 307 move to make the first limiting plate 304 and the second limiting plate 307 fit tightly against the outer surface of the elbow flange 7. The first limiting plate 304 and the second limiting plate 307 limit the elbow flange 7 in all directions, preventing the elbow flange 7 from moving horizontally during the air tightness test. This solves the problem that the irregular shape of the elbow flange 7 makes it easy for the bottom to lift up when the pressing component presses down on the elbow flange 7, causing leakage of internal air pressure and affecting the air tightness test accuracy of the elbow flange 7.

[0053] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A burner airtightness testing device, characterized in that, include Workbench (1), the top of the workbench (1) is connected to an airtightness testing device (5), and the top of the workbench (1) is connected to a fixing frame (4); The fixing frame (4) includes a base plate (6), which is located inside the fixing frame (4). An elbow flange (7) is provided above the base plate (6). An adjustment mechanism (2) for fixing elbow flanges (7) of different sizes is provided inside the fixing frame (4). A limiting mechanism (3) for limiting the elbow flange (7) is provided above the base plate (6). The adjustment mechanism (2) includes four sets of lower pressure plates (203), all of which are located above the flat surface at the top of the elbow flange (7).

2. The burner airtightness testing device according to claim 1, characterized in that, The fixed frame (4) is internally slidably connected to a lifting plate (202), the bottom of the lifting plate (202) is rotatably connected to a rotating component (206), the top of the lifting plate (202) is connected to a motor (201), and the output shaft of the motor (201) passes through the lifting plate (202) and is connected to the top of the rotating component (206).

3. The burner airtightness testing device according to claim 2, characterized in that, The bottom of the rotating component (206) is connected to a track plate (204), and the top of the track plate (204) is provided with four sets of sliding grooves (209).

4. The burner airtightness testing device according to claim 3, characterized in that, The bottom of the lifting plate (202) is connected to four sets of moving rails (207), and the moving rails (207) are slidably connected to moving parts (208).

5. The gas tightness testing device for a burner according to claim 4, characterized in that, The outer surface of the movable part (208) is connected to a vertical rod (205), and the other end of the vertical rod (205) is connected to the top of the lower pressure plate (203).

6. The gas tightness testing device for a burner according to claim 5, characterized in that, The vertical rod (205) slides inside the sliding groove (209).

7. The burner airtightness testing device according to claim 1, characterized in that, The limiting mechanism (3) includes multiple sets of mounting components (301), all of which are connected to the top of the base plate (6). Four sets of longitudinal electric slide rods (302) and four sets of transverse electric slide rods (305) are connected between the multiple sets of mounting components (301).

8. The gas tightness testing device for a burner according to claim 7, characterized in that, The outer surfaces of the four sets of longitudinal electric sliding rods (302) are all slidably connected with first sliders (303), and a first limiting plate (304) is connected between the two sets of first sliders (303). There are two sets of first limiting plates (304).

9. The gas tightness testing device for a burner according to claim 8, characterized in that, The outer surfaces of the four sets of transverse electric sliding rods (305) are all slidably connected with second sliders (306), and a second limiting plate (307) is connected between the two sets of second sliders (306). There are two sets of second limiting plates (307).

10. The gas tightness testing device for a burner according to claim 9, characterized in that, The first limiting plate (304) is at a higher horizontal height than the second limiting plate (307).

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