A water-cooled low-nitrogen burner

Abstract

The present invention relates to the technical field of burners, and specifically to a water-cooled low-nitrogen burner, comprising a shell, a gas channel, a water collecting tank, a water-cooling pipe, and a corrugated plate group, wherein the gas channel is arranged in the shell, the water collecting tank is arranged in the shell, the water-cooling pipe is arranged vertically and horizontally in the shell, the corrugated plate group is installed between adjacent water-cooling pipes, the corrugated plate group comprises a first corrugated plate and a second corrugated plate, the first corrugated plate is fixedly and vertically installed on the shell, the second corrugated plate is vertically and slidably installed on the shell, a cleaning component is slidably installed on the shell, a driving component is installed in the water collecting tank, the driving component outputs power through heat change, the cleaning component and the corrugated plate group perform mutual up and down friction through the power output by the driving component, so as to achieve the effect of scraping impurities from the corrugated plate group, reduce the clogging of the combustion head due to impurities, avoid the phenomenon of insufficient combustion, and reduce the generation of harmful gases such as carbon monoxide.

Description

Technical Field

[0001] The invention relates to the technical field of burners, and in particular to a water-cooled low-nitrogen burner. Background Art

[0002] Industrial boilers produce a large amount of harmful gases when in operation, including nitrogen oxides. At high temperatures, oxygen and nitrogen combine to form nitrogen oxides, and the burners in industrial boilers generate the largest amount of nitrogen oxides. The key to reducing nitrogen oxide emissions is to use low-nitrogen burners.

[0003] A water-cooled low-nitrogen burner is a device used to control nitrogen oxide emissions during the combustion process. It controls the oxygen content during combustion by mixing air and gas in a certain ratio before combustion, thereby lowering the combustion temperature and reducing the generation of nitrogen oxides. At the same time, oxygen is fully consumed, preventing excess oxygen from combining with nitrogen to form nitrogen oxides at high temperatures. Water cooling technology reduces the temperature of the combustion head and the combustion flame, thereby reducing the generation of nitrogen oxides.

[0004] Due to processing problems, the aperture of the existing water-cooled low-nitrogen burner cannot be too small, and the corresponding distribution density is not large, so the mixed gas is uneven, the combustion temperature is not uniform enough, the reduction of the generation of nitrogen oxides is not ideal, and it is easy to cause flashback. To solve this problem, the application number CN202322372541.4 relates to a burner head of a low-nitrogen burner. The burner head mixes air and gas in a certain ratio in the gas channel and transports them to the burner head. The mixed gas flows evenly into the corrugated plate group through the spoiler. The corrugated structure of the corrugated plate is matched with the gap to form a matching vent hole with a small aperture and a large distribution density. Not only is it not easy to flashback, but the mixed gas passing through can be relatively uniform, so that the temperature of the flame combustion is uniform. However, since the corrugated plate has many lines and small vents, as the use time of the burner head increases, impurities and particulate matter will accumulate and clog the lines and vents. Excessive blockage will make the flame smaller and weaker, reduce the combustion quality, make the flame burn incompletely, cause waste of combustion gas, and aggravate the generation of harmful gases such as carbon monoxide.

[0005] In order to reduce the clogging of the combustion head by impurities and reduce the production of harmful substances such as carbon monoxide and nitrides after long-term use, a water-cooled low-nitrogen burner is proposed. Summary of the invention

[0006] The object of the present invention is to provide a water-cooled low-nitrogen burner. By arranging a slidable corrugated plate and a spring plate, and then arranging a self-driven driving device, the corrugated plate and the spring plate are rubbed against each other to achieve the effect of self-cleaning combustion particulate matter. After the water-cooled low-nitrogen burner is used for a long time, the clogging of the combustion head due to combustion impurities is reduced, the phenomenon of incomplete combustion is avoided, and the generation of harmful gases such as carbon monoxide is reduced.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A water-cooled low-nitrogen burner comprises a shell, a gas channel, a water collecting chamber, a water-cooling tube, and a corrugated plate group, wherein the gas channel is arranged on the shell, the water collecting chamber is arranged in the shell, the water-cooling tubes are arranged side by side and equidistantly in the shell, a corrugated plate group is arranged between two of the water-cooling tubes, the corrugated plate group comprises two corrugated plates 1 and two corrugated plates 2, the corrugated plates 1 and 2 are both equidistantly provided with a plurality of raised sections and vertical sections, the corrugated plate 1 is vertically mounted on the shell, the vertical sections of the two corrugated plates 1 are respectively attached to the water-cooling tubes on both sides, a cleaning assembly with a driving plate is provided on the shell, a driving assembly is provided on the shell, the driving plate is connected to the driving assembly, the two corrugated plates 2 are respectively connected to both sides of the driving plate, the vertical sections of the corrugated plates 2 are attached to the driving plate, and the driving assembly drives the cleaning assembly and the corrugated plate group to produce relative displacement through heat changes to clean impurities on the corrugated plate group.

[0009] By setting up the sliding installation of the cleaning component, the driving component and the corrugated plate, the driving component can drive the corrugated plate group and the cleaning component to rub against each other, so as to achieve the effect of cleaning impurities. After the water-cooled low-nitrogen burner has been used for a long time, the phenomenon of impurities clogging the corrugated plate and the phenomenon of incomplete combustion can be avoided, and the generation of harmful gases such as carbon monoxide can be reduced.

[0010] Preferably, the cleaning assembly includes a spring plate, and the spring plate includes spring plate 1, spring plate 2, and spring plate 3. A plurality of spring plate 1s are equidistantly installed on the driving plate, and the spring plate 1 is perpendicular to the driving plate. One end of the spring plate 1 is fitted inside the raised section of the corrugated plate 2. A plurality of spring plate 2s are equidistantly installed on the raised section of the corrugated plate 2. One end of the spring plate 2 is slidably fitted on the corrugated plate 1. The spring plate 3 is installed at the crest of each raised section of the corrugated plate 1. The spring plate 3 is perpendicular to the crest of the raised section of the corrugated plate 1. One end of the spring plate 3 is slidably fitted on the corrugated plate 2.

[0011] By arranging the driving plate and the spring plate, when the driving plate and the corrugated plate 2 slide up and down, the spring plate can slide and fit on the corrugated plate 1 and the corrugated plate 2, and scrape off impurities on the corrugated plate 1 and the corrugated plate 2, so that when the driving plate and the corrugated plate 2 slide against each other, impurities on the corrugated plate group can be better removed, the problem of uneven gas output of the burner caused by impurities is reduced, and the combustion performance of the burner after long-term use is guaranteed.

[0012] Preferably, the raised section of the corrugated plate 2 is symmetrically provided with two spring pieces 2 at the crest, the two spring pieces 2 have an angle, and the two spring pieces 2 intersect at the crest of the raised section of the corrugated plate 2, and the angle between the two spring pieces 2 and the horizontal direction is 20-30°.

[0013] By symmetrically arranging the spring piece 2 and the angle between the spring piece 2, the spring piece 2 gradually deforms along the grain of the corrugated plate 1 as it slides along the corrugated plate 2, thereby increasing the area for the spring piece 2 to scrape away impurities. At the same time, the gradual deformation avoids the metal fatigue caused by the jamming of the spring piece 2 or excessive deformation, thereby extending the service life of the spring piece 2 and further extending the service life of the cleaning component.

[0014] Preferably, the driving plate is vertically provided with a reinforcing column, and the reinforcing column is arranged on a side close to the gas passage, and the upper and lower ends of the reinforcing column are slidably installed on the shell, and the driving plate is connected to the driving assembly through one end of the reinforcing column, and the reinforcing column and the driving plate are in the same vertical plane, and the reinforcing column is provided with chamfers on both sides along the gas outlet direction.

[0015] By providing a reinforcing column with chamfers and rounded corners, the strength of the drive plate is enhanced, and the reinforcing column does not affect the passage of the mixed gas flow, reducing the influence of the cleaning component on the spraying of the mixed gas, thereby ensuring the flame combustion quality of the burner.

[0016] Preferably, a plurality of slide grooves are provided at one end of the reinforcing column close to the second corrugated plate, and a plurality of sliders are installed in the direction of the gas passage of the second corrugated plate. The plurality of sliders are slidably installed in the plurality of slide grooves, and the length of the slide groove is equal to the vertical length of the raised section of the second corrugated plate plus the length of the slider.

[0017] By setting a plurality of slide grooves on the reinforcing column and setting a slider on the corrugated plate 2, the corrugated plate 2 is slidably installed on the slide groove. When the driving plate is pushed by the driving component, the driving plate and the corrugated plate 2 are relatively displaced. When one end of the slide groove touches the sliding slider, the corrugated plate 2 is pushed by the driving plate, so that the corrugated plate 2 and the corrugated plate 1 are relatively displaced. The cooperation between the slide groove and the slider causes the driving plate and the corrugated plate 2 to be relatively displaced. The driving plate can also drive the corrugated plate 2 to move, so as to achieve the effect of scraping impurities by mutual friction between the corrugated plate group and the cleaning component.

[0018] Preferably, the driving assembly includes a plurality of driving chambers and a spring. The driving chamber is arranged on the shell, and the driving chamber is arranged vertically above the corrugated plate group. Both ends of the spring are respectively connected to the shell and the reinforcing column. The spring is a two-way memory metal. The spring extends when heated and contracts when cooled.

[0019] Through the setting of the driving component, the air in the driving cavity is heated during combustion, so that the memory metal spring becomes extended. When not burning, the memory metal spring naturally cools and becomes contracted. It can self-drive the cleaning component to perform scraping movement as the temperature changes. The driving component uses the heat of the burner through the memory metal spring to achieve the driving effect. There is no need to increase the system drive control, which saves costs.

[0020] Preferably, a cylindrical slide rail is installed in the driving cavity, a wavy guide groove is provided on the cylindrical slide rail, the wavy guide groove is provided with large waves and small waves, the height of the large wave is equal to the difference between the heated length and the cooled length of the spring, the sum of the height of the small wave and the spacing between adjacent raised sections of the corrugated plate is equal to the difference between the heated length and the cooled length of the spring, a slide plate is vertically slidably installed in the cylindrical slide rail, the slide plate is connected to the spring, the slide plate is disc-shaped, a guide wheel is provided on the outer circle of the slide plate, and the guide wheel cooperates with the wavy guide groove.

[0021] By arranging a cylindrical slide rail and a slide plate in the driving cavity, when the guide wheel of the slide plate is located at the large wave, the spring is heated and elongated to push the slide plate to rotate and slide in the guide groove of the large wave without pushing the driving plate; when the guide wheel of the slide plate is located at the small wave, the spring is heated and elongated to push the slide plate to the crest of the small wave, and the slide plate can no longer move; when the burner stops burning and the spring cools down, if the guide wheel of the slide plate is located at the large wave, the spring pulls the slide plate to rotate and slide to the trough of the large wave and stops; if the guide wheel of the slide plate is located at the small wave, the spring pulls the slide plate to rotate and move to the trough of the small wave, and the slide plate can no longer move, and the spring continues to pull the driving plate, thereby causing the spring to push the driving plate to slide and clean, thereby reducing the number of times the cleaning component is used, and thereby extending the life of the cleaning component.

[0022] Preferably, the spring piece 1 and the spring piece 3 are both made of any one of copper alloy and tin alloy, the spring piece 2 includes a spring and a scraper, one end of the spring is connected to the corrugated plate 2, and the other end is connected to the scraper, the scraper is slidably connected to the corrugated plate 1, the scraper is made of any one of copper alloy and tin alloy, and the spring is made of any one of steel alloy, aluminum alloy or stainless steel.

[0023] By limiting the material of the spring plate, the spring plate can reduce the wear of the corrugated plate after rubbing the corrugated plate multiple times. At the same time, the material selection of the second spring plate makes the second spring plate fit the texture of the first corrugated plate with high elasticity, while the hardness of the end of the second spring plate contacting the first corrugated plate is small, thereby reducing the degree of wear of the corrugated plate by the second spring plate, thereby increasing the service life of the corrugated plate after being scratched.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. By setting up a cleaning component, the driving plate and the corrugated plate can slide against each other under the action of the driving component, and at the same time, the impurities on the corrugated plate can be cleaned off, ensuring that the burner can emit gas evenly after long-term use, reducing the clogging of the combustion head by impurities, and reducing the generation of harmful substances such as carbon monoxide and nitrogen compounds.

[0026] 2. By setting the angle of the spring piece 2 in the cleaning component, the spring piece 2 can be deformed along the lines of the corrugated plate 1, and can scrape away impurities along the corrugations of the corrugated plate 1, thereby avoiding the spring piece 2 from getting stuck or causing metal fatigue due to multiple deformation limits, and increasing the scraping area of ​​the spring piece 2, while extending the service life of the spring piece 2, thereby extending the service life of the cleaning component.

[0027] By setting up the drive component, the drive component can output power as the heat of the burner starts and stops, and the parts used are simple, and no additional system drive control is required, thus saving costs.

[0028] A cylindrical slide rail and a slide plate are arranged in the driving assembly, so that the driving assembly drives the cleaning assembly only once after the burner is started and stopped multiple times, thereby reducing the number of times the cleaning assembly is used and thereby extending the life of the cleaning assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall internal structure of the present invention;

[0030] Figure 2 It is a top view schematic diagram of the internal structure of the present invention;

[0031] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at AA;

[0032] Figure 4 for Figure 3 An enlarged schematic diagram of point B;

[0033] Figure 5 for Figure 3 An enlarged schematic diagram of point C;

[0034] Figure 6 A schematic diagram of the cleaning component structure;

[0035] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure at DD;

[0036] Figure 8 for Figure 7 An enlarged schematic diagram of point E;

[0037] Fig. 9 for Figure 6 Schematic diagram of the cross-sectional structure at FF;

[0038] Fig.10 for Figure 6 Schematic diagram of the cross-sectional structure at GG.

[0039] In the figure: 1. shell; 2. gas channel; 3. water collecting chamber; 4. water cooling pipe; 5. corrugated plate group; 51. corrugated plate one; 52. corrugated plate two; 53. raised section; 54. vertical section; 6. cleaning assembly; 61. driving plate; 62. spring plate; 621. spring piece one; 622. spring piece two; 6221. spring piece; 6222. scraper; 623. spring piece three; 7. driving assembly; 71. driving chamber; 72. spring; 73. cylindrical slide rail; 74. wavy guide groove; 741. large wave; 742. small wave; 75. slide plate; 76. guide wheel; 8. reinforcing column; 9. slide groove; 10. slider; 11. chamfer. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] refer to Figures 1 to 10The present invention provides a water-cooled low-nitrogen burner, comprising a shell 1, a gas channel 2, a water collecting chamber 3, a water cooling tube 4, and a corrugated plate group 5. The gas channel 2 is arranged on the shell 1, the water collecting chamber 3 is arranged on the shell 1, the water cooling tubes 4 are arranged side by side and equidistantly in the shell 1, and are connected to the water collecting chamber 3. The corrugated plate group 5 is arranged between adjacent water cooling tubes 4. The corrugated plate group 5 includes a corrugated plate 1 51 and a corrugated plate 2 52. Of course, more corrugated plates can also be arranged. The corrugated plate 1 51 and the corrugated plate 2 52 are equidistantly provided with multiple vertical sections 54 and raised sections 53. The vertical section 54 of the corrugated plate 1 51 is installed on the water cooling tube 4 and fits the water cooling tube 4. 4. A cleaning assembly 6 including a driving plate 61 is slidably installed on the shell 1. The vertical section 54 of the second corrugated plate 52 is slidably installed on the cleaning assembly 6 and fits the driving plate 61. A driving assembly 7 is arranged in the water collecting chamber 3. The cleaning assembly 6 is connected with the driving assembly 7. The driving assembly 7 outputs power through the change of heat, drives the cleaning assembly 6 to slide vertically, and drives the second corrugated plate 52 to slide vertically at the same time, so that the corrugated plate group 5 and the cleaning assembly 6 slide vertically relative to each other, thereby scraping off impurities on the corrugated plate group 5. After the water-cooled low-nitrogen burner is used for a long time, the phenomenon of impurities clogging the corrugated plate is avoided, resulting in incomplete combustion. The cleaning component 6 includes a driving plate 61 and a spring plate 62. The driving plate 61 is slidably mounted on the housing 1, and the driving plate 61 is arranged in the middle of the corrugated plate group 5. The corrugated plate 2 52 is slidably mounted on the driving plate 61. The spring plate 62 is an elastic metal sheet. The spring plate 62 includes a spring piece 1 621, a spring piece 2 622 and a spring piece 3 623. A plurality of spring pieces 1 621 are equidistantly and vertically mounted on the driving plate 61. The other end of the spring piece 1 621 is slidably fitted inside the raised section 53 of the corrugated plate 2 52. A plurality of spring pieces 2 622 are equidistantly mounted on the corrugated plate 2 52 The other end of the spring sheet 622 is slidably fitted on the corrugated plate 1 51, and multiple spring sheets 623 are equidistantly and vertically installed at the crest of the convex section 53 of the corrugated plate 1 51, and the other end of the spring sheet 62 is slidably fitted on the corrugated plate 2 52. When the driving component 7 drives the cleaning component 6 and the corrugated plate 2 52 to move vertically relative to each other, the spring sheet 62 is elastically fitted on the corrugated plate group 5, so as to achieve the effect of scraping off impurities in the corrugated plate group 5, reduce the problem of uneven gas discharge of the burner caused by impurity blockage, thereby reducing the phenomenon of incomplete combustion, and further reducing the generation of harmful gases such as carbon monoxide;The spring pieces 622 are symmetrically arranged at the crest of the raised section 53 of the corrugated plate 52, and the symmetrical spring pieces 622 form an angle of 30° with the horizontal square, so that the spring pieces 622 are linearly bent and deformed along the lines of the corrugated plate 51 during the sliding process of the spring pieces 622 in contact with the corrugated plate 51, thereby avoiding the spring pieces 622 from vertically colliding with the raised section 53 on the corrugated plate 51, causing the spring pieces 622 to get stuck or deform too much, avoiding accelerating the metal fatigue of the spring pieces 622, and extending the service life of the spring pieces 622, thereby extending the service life of the cleaning component 6; the driving plate 6 1 is vertically provided with a reinforcing column 8, which is arranged on a side close to the gas channel 2. The reinforcing column 8 is extended up and down and slidably installed on the housing 1. The driving plate 61 is connected to the driving assembly 7 through the reinforcing column 8. A chamfer 11 is arranged at one end of the reinforcing column 8 close to the gas channel 2, and the other end is arranged in a square shape. A chamfer 11 is arranged at the convex section 53 of the reinforcing column 8 close to the corrugated plate 2 52. The strength of the driving plate 61 is ensured by the arrangement of the reinforcing column 8. By arranging the chamfer 11 of the reinforcing column 8, the mixed gas can flow into the corrugated plate group 5 along the surface of the reinforcing column 8, and the reinforcing column 8 reduces the influence of the mixed gas flow direction on the mixed gas flow direction. The blocking area in the direction is reduced, thereby reducing the influence of the reinforcing column 8 on the flow of the mixed gas, thereby ensuring the combustion performance of the burner; the reinforcing column 8 is equidistantly provided with a plurality of slide grooves 9 at the vertical end near the corrugated plate 2 52, and a plurality of sliders 10 are equidistantly provided on the vertical section 54 of the corrugated plate 2 52. The corrugated plate 2 52 is slidably installed on the reinforcing column 8 through the sliders 10, and the length of the slide groove 9 is equal to the length of the slider 10 plus the length of a single raised section 53 of the corrugated plate 2 52, ensuring that the corrugated plate 2 52 can only slide a distance of the vertical length of the raised section 53, ensuring that the spring piece 1 621 only slides inside the raised section 53, and ensuring that the driving plate After the drive plate 61 moves vertically for a certain distance, it can drive the corrugated plate 2 52 to move vertically, and at the same time limit the relative displacement between the drive plate 61 and the corrugated plate 2 52, so that the drive plate 61 can simultaneously achieve the relative displacement between the drive plate 61 and the corrugated plate 1 51 when moving. The drive plate 61 can drive the corrugated plate 2 52 to move, so that the corrugated plate 2 52 and the corrugated plate 1 51 produce relative displacement, so as to achieve the effect of scraping impurities by mutual friction between the corrugated plate group 5 and the cleaning component 6, thereby avoiding the phenomenon that impurities block the corrugated plate group 5 and cause incomplete combustion of the flame, and reducing the generation of harmful gases such as carbon monoxide;The spring piece 1 621 and the spring piece 3 623 are made of high elasticity and low hardness materials, and any one of copper alloy and tin alloy can be selected. The spring piece 2 622 is made of a spring piece 6221 and a scraper piece 6222. The spring piece 6221 is connected to one end of the corrugated plate 2 52, and the scraper piece 6222 is slidably connected to one end of the corrugated plate 1 51. The spring piece 6221 is made of high elasticity and high hardness materials, and any one of steel alloy and aluminum alloy can be used. The scraper piece 6222 is made of low hardness materials, and any one of copper alloy and tin alloy can be selected. By limiting the material of the spring plate piece 62, the spring plate piece 62 can be elastically attached to the corrugated plate group 5, and the wear of the spring plate piece 62 on the corrugated plate group 5 is reduced, thereby increasing the service life of the corrugated plate group 5 after being scraped. ;

[0042] refer to Figures 1 to 4 , Figures 6 to 8The driving assembly 7 is arranged on the housing 1. The driving assembly 7 includes a driving chamber 71 and a spring 72. A small amount of gas is allowed to enter only at the connection reinforcing column 8. The driving chamber 71 is located directly above the cleaning assembly 6 and the corrugated plate group 5. The spring 72 is vertically installed in the driving chamber 71. One end of the spring 72 is connected to the driving chamber 71, and the other end of the spring 72 is connected to the reinforcing column 8. The spring 72 is a two-way memory metal spring 72. It stretches when heated and contracts when cooled. The power is output through the heat change, so that the driving plate 61 moves vertically up and down. At the same time, the difference between the heated length and the cooled length of the spring 72 is equal to the length of the corrugated plate 51. The spacing between two adjacent raised sections 53 ensures that the spring 72 can drive the driving plate 61 to slide only in the two adjacent raised sections 53 on the corrugated plate 51. The setting of the driving component 7 enables the spring 72 to self-drive the cleaning component 6 to perform scraping movement as the temperature of the burner changes, without the need for additional system control, thus saving costs. By fixing the cylindrical slide rail 73 in the driving cavity 71, and providing a wavy guide groove 74 on the cylindrical slide rail 73, the wavy guide groove 74 is provided with a large wave 741 and a small wave 742, and the height of the large wave 741 is equal to the difference between the heated length and the cooled length of the spring 72, and the vertical movement of the cylindrical slide rail 73 is The straight slide is equipped with a slide plate 75, the height of the small wave 742 and the distance between the adjacent raised sections 53 of the corrugated plate 51 are equal to the difference between the heated length and the cooled length of the spring 72, the slide plate 75 can slide vertically and rotate, the slide plate 75 is disc-shaped, and a guide wheel 76 is installed at the outer circle of the slide plate 75, the guide wheel 76 is arranged in the wavy guide groove 74, and cooperates with each other, one end of the spring 72 is attached to the slide plate 75, when the spring 72 is extended and the guide wheel 76 is located at the large wave 741, due to the cooperation between the guide wheel 76 and the wavy guide groove 74, the slide plate 75 rotates and slides upward along the wavy guide groove 74 from the trough, and when the spring 72 is contracted and When the guide wheel 76 is located at the large wave 741, the principle is the same as above. When the spring 72 is extended and the guide wheel 76 is located at the small wave 742, the slide plate 75 rotates and moves upward to the crest of the small wave 742 and stops. At the same time, the spring 72 pushes the drive plate 61 to move vertically downward. When the spring 72 contracts and is located at the small wave 742, the slide plate 75 rotates and moves downward to the trough of the small wave 742 and stops. The spring 72 continues to contract to make the drive plate 61 move vertically upward, so that the spring 72 expands and contracts multiple times and only drives the cleaning component 6 to move once, thereby reducing the frequency of use of the cleaning component 6 and extending the life of the cleaning component 6.

[0043] Working principle: Reference Figures 1 to 10 Before operation, check whether there is water leakage in the water collecting chamber 3 and the water cooling pipe 4. If there is no problem, the equipment can be started for combustion.

[0044] When the burner is turned on, the flame heats the drive chamber 71, and when the guide wheel 76 on the slide plate 75 is located at the trough of the wavelet 742, the air in the drive chamber 71 is heated to extend the spring 72, and the spring 72 pushes the slide plate 75 to rotate and slide vertically upward along the wavy guide groove 74. When the guide wheel 76 reaches the peak of the wavelet 742, the slide plate 75 cannot be pushed upward, and the spring 72 pushes the reinforcing column 8 vertically downward, and at the same time drives the drive plate 61 connected to the reinforcing column 8 to move vertically downward. When the drive plate 61 starts to move downward When the corrugated plate 2 52 is moved, the corrugated plate 2 52 remains stationary due to the clamping state of the multiple spring pieces 2 622 and the spring pieces 3 623. The spring piece 1 621 on the driving plate 61 begins to scrape the inside of the raised section 53 of the corrugated plate 2 52 from top to bottom, and the spring piece 1 621 gradually deforms along the internal corrugations of the raised section 53 of the corrugated plate 2 52. The relative displacement of the driving plate 61 and the corrugated plate 2 52 causes the slider 10 to touch the limit of the slide groove 9, and the slide groove 9 drives the corrugated plate 2 52 to slide vertically downward, and the crest of the raised section 53 of the corrugated plate 2 52 is symmetrical. The spring piece 2 622 is arranged to fit and slide along the corrugated plate 1 51. Since the symmetrically arranged spring piece 2 622 has an angle and elastically slides and fits the corrugated plate 1 51, the spring piece 2 622 can be linearly deformed along the outer corrugation of the corrugated plate 1 51, and the spring piece 3 623 always fits the vertical section 54 of the corrugated plate 2 52. When the spring 72 reaches the elongation limit, the spring piece 1 621 is bent and deformed to fit the corrugated plate 2 52, the spring piece 2 622 is bent and deformed to fit the raised section 53 of the corrugated plate 1 51, and the spring piece 3 623 The vertical section 54 is vertically attached to the corrugated plate 52. When the guide wheel 76 on the slide plate 75 is located at the crest of the wavelet 742 and the burner stops burning, the air in the drive chamber 71 cools down, and the spring 72 pulls the slide plate 75 to rotate and slide vertically downward along the wavy guide groove 74. When the guide wheel 76 reaches the trough of the wavelet 742, the slide plate 75 cannot be pulled downward, and then pulls the drive plate 61 to move vertically upward. The movement relationship between the drive plate 61, the corrugated plate 52, and the spring plate 62 is the same as above and will not be repeated here.

[0045] When the spring 72 is extended and the guide wheel 76 is located at the large wave 741, the slide plate 75 is rotated and slid upward along the wavy guide groove 74 from the trough, and the drive plate 61 is held stationary by the multiple spring plates 62. When the slide plate 75 moves to the crest of the wavy guide groove 74, the spring 72 is in the maximum extension state and stops moving. When the spring 72 is contracted and the guide wheel 76 is located at the large wave 741, the principle is the same as above and will not be repeated here.

[0046] A specific embodiment of the present invention is described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above described embodiment. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments without departing from the principles and ideas of the present invention should still fall within the scope of protection of the present invention.

Claims

1. A water-cooled low-nitrogen burner, comprising a shell (1), a gas channel (2), a water collecting chamber (3), a water cooling tube (4), and a corrugated plate group (5), wherein the gas channel (2) is arranged on the shell (1), the water collecting chamber (3) is arranged in the shell (1), the water cooling tube (4) is arranged side by side and equidistantly in the shell (1), and a corrugated plate group (5) is arranged between two water cooling tubes (4), characterized in that: The corrugated plate group (5) comprises two corrugated plates (51) and two corrugated plates (52), the corrugated plates (51) and the corrugated plates (52) are both provided with a plurality of raised sections (53) and vertical sections (54) at equal intervals, the corrugated plates (51) are vertically mounted on the shell (1), the vertical sections (54) of the two corrugated plates (51) are respectively attached to the water cooling pipes (4) on both sides, and the shell (1) is provided with a cleaning device having a driving plate (61). The housing (1) is provided with a driving assembly (7), the driving plate (61) is connected to the driving assembly (7), the two corrugated plates (52) are respectively connected to the two sides of the driving plate (61), the vertical section (54) of the corrugated plate (52) is attached to the driving plate (61), and the driving assembly (7) drives the cleaning assembly (6) and the corrugated plate group (5) to generate relative displacement through heat change to clean impurities on the corrugated plate group (5); The cleaning assembly (6) comprises a spring plate (62), wherein the spring plate (62) comprises a spring plate 1 (621), a spring plate 2 (622), and a spring plate 3 (623), wherein a plurality of spring plates 1 (621) are equidistantly mounted on the driving plate (61), wherein the spring plate 1 (621) is perpendicular to the driving plate (61), wherein one end of the spring plate 1 (621) is attached to the inside of the raised section (53) of the corrugated plate 2 (52), and wherein the plurality of spring plates 2 (623) are arranged on the driving plate (61) and the plurality of spring plates 3 (624) are arranged on the driving plate (61) and the plurality of spring plates 3 (625) are arranged on the driving plate (61) and the plurality of spring plates 3 (626) are arranged on the driving plate (61) and the plurality of spring plates 3 (627) are arranged on the driving plate (61) and the plurality of spring plates 3 (628) are arranged on the driving plate (61) and the plurality of spring plates 3 (629) are arranged on the driving plate (61) and the plurality of spring plates 3 (621 ...3) are arranged on the driving plate (61) and the plurality of spring plates 3 (624) are arranged on the driving plate (61) and the plurality of spring plates 3 (625) are arranged on the driving plate (61) and the plurality of spring plates 3 (626) are arranged on the driving plate (61) and the plurality of spring plates 3 (628) are arranged on the driving plate (61) and the plurality of spring plates 3 (629) are arranged on the driving plate (6 22) are equidistantly installed on the raised section (53) of the second corrugated plate (52), one end of the second spring piece (622) is slidably fitted on the first corrugated plate (51), and the third spring piece (623) is installed at the crest of each raised section (53) of the first corrugated plate (51), the third spring piece (623) is perpendicular to the crest of the raised section (53) of the first corrugated plate (51), and one end of the third spring piece (623) is slidably fitted on the second corrugated plate (52); The raised section (53) of the second corrugated plate (52) is symmetrically provided with two spring pieces (622) at the crest, and the two spring pieces (622) are at an angle, and the two spring pieces (622) intersect at the crest of the raised section (53) of the second corrugated plate (52), and the angle between the two spring pieces (622) and the horizontal direction is 20-30 degrees; The spring piece 1 (621) and the spring piece 3 (623) are both made of any one of copper alloy and tin alloy. The spring piece 2 (622) comprises a spring leaf (6221) and a scraper (6222). One end of the spring leaf (6221) is connected to the corrugated plate 2 (52), and the other end is connected to the scraper (6222). The scraper (6222) is slidably connected to the corrugated plate 1 (51). The scraper (6222) is made of any one of copper alloy and tin alloy. The spring leaf (6221) is made of any one of steel alloy, aluminum alloy or stainless steel.

2. A water-cooled low-nitrogen burner according to claim 1, characterized in that: The driving plate (61) is vertically provided with a reinforcing column (8), the reinforcing column (8) is arranged on a side close to the gas channel (2), the upper and lower ends of the reinforcing column (8) are slidably mounted on the shell (1), the driving plate (61) is connected to the driving assembly (7) via one end of the reinforcing column (8), the reinforcing column (8) and the driving plate (61) are located on the same vertical plane, and chamfers (11) are provided on both sides of the reinforcing column (8) along the gas outlet direction.

3. A water-cooled low-nitrogen burner according to claim 2, characterized in that: The reinforcing column (8) is provided with a plurality of slide grooves (9) at one end close to the second corrugated plate (52), and the second corrugated plate (52) is provided with a plurality of sliders (10) in the direction of the gas channel (2). The plurality of sliders (10) are slidably installed in the plurality of slide grooves (9), and the length of the slide grooves (9) is equal to the vertical length of the raised section (53) of the second corrugated plate (52) plus the length of the slider (10).

4. A water-cooled low-nitrogen burner according to claim 2, characterized in that: The driving assembly (7) comprises a plurality of driving chambers (71) and a spring (72). The driving chamber (71) is arranged on the housing (1). The driving chamber (71) is arranged vertically above the corrugated plate group (5). The spring (72) is vertically installed in the driving chamber (71). One end of the spring (72) is connected to the driving chamber (71), and the other end of the spring (72) is connected to a reinforcing column (8). The spring (72) is a two-way memory metal. The spring (72) extends when heated and contracts when cooled.

5. A water-cooled low-nitrogen burner according to claim 4, characterized in that: A cylindrical slide rail (73) is installed in the driving cavity (71), and a wavy guide groove (74) is provided on the cylindrical slide rail (73). The wavy guide groove (74) is provided with a large wave (741) and a small wave (742). The height of the large wave (741) is equal to the difference between the heated length and the cooled length of the spring (72). The sum of the height of the small wave (742) and the spacing between adjacent raised sections (53) of the corrugated plate (51) is equal to the difference between the heated length and the cooled length of the spring (72). A slide plate (75) is vertically slidably installed in the cylindrical slide rail (73), and the slide plate (75) is connected to the spring (72). The slide plate (75) is disc-shaped, and a guide wheel (76) is provided on the outer circle of the slide plate (75). The guide wheel (76) cooperates with the wavy guide groove (74).

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