Premixing type industrial burner

Abstract

A premixing type industrial burner comprises a burner body, the upper side of the burner body is fixedly connected with a mixing box, the lower side of the mixing box is provided with an oil outlet, the mixing box is fixedly provided with an oil storage box and an air storage box, one side of the oil storage box and one side of the air storage box are each provided with a feeding box, and fuel oil or air is added into the mixing box through the feeding boxes. The device is characterized in that the feeding box comprises a pipe body, one end of the pipe body is closed, pistons are adjustably installed in the pipe body in an airtight fit mode, sliding rods are installed on the pistons in a sliding mode respectively, a plurality of through holes are formed in the pistons, and sealing plates are fixedly installed at the inner ends of the sliding rods respectively; the sealing plate can abut against the side wall of the piston in a contact fit mode. The fuel oil mixing device is simple in structure and ingenious in conception, fuel oil and air are fully and evenly mixed through the vertical stirring mode of the multiple stirring rods, meanwhile, the mixing proportion of the air and the fuel oil can be changed, actual requirements can be met, and the fuel oil mixing device is suitable for popularization.

Description

Technical Field

[0001] The utility model belongs to the technical field of burners, in particular to a premixed industrial burner. Background Art

[0002] A burner is a thermal energy device that delivers fuel and air into the furnace at the required concentration, speed, turbulence and mixing method, mixes them in an appropriate proportion through a premixing device to make them fully burn, and enables the fuel to ignite and burn stably in the furnace. The fuel is mainly oil and gas; the fuel of industrial burners is mainly oil. The existing premixing device of industrial burners can deliver the appropriate proportion of fuel and air to the furnace after mixing them at the required concentration, speed, turbulence and mixing, but insufficient mixing often occurs, resulting in incomplete combustion of the fuel, which leads to combustion failure. When oil burns, it is very easy to have incomplete combustion or explosion. In the patent "A Premixed Industrial Burner" authorized and announced by the State Intellectual Property Office on March 17, 2023, with the announcement number CN218645563U, the fuel and air mixing method provided in the above patent is inefficient. It only mixes the fuel and air by increasing the contact area between them, which makes it impossible to mix the fuel and air evenly, thereby affecting the quality of the mixed fuel, and it cannot change the ratio of air and fuel. For this reason, we designed a premixed industrial burner. Utility Model Content

[0003] The utility model provides a premixing industrial burner to solve the defects in the prior art.

[0004] The utility model is realized through the following technical solutions:

[0005] A premixed industrial burner comprises a burner body, the upper side of the burner body is fixedly connected to a mixing box, the lower side of the mixing box is provided with an oil outlet, an oil storage tank and an air storage tank are fixedly installed on the mixing box, one side of the oil storage tank and the air storage box are respectively provided with a charging box, and fuel or air is added into the mixing box through the charging box, and the charging box corresponding to the oil storage tank is located on the upper side of the mixing box, which is characterized in that: the charging box comprises a tube body, one end of the tube body is closed, and pistons are respectively adjustable and airtightly installed in the tube body, and sliding rods are respectively slidably installed on the pistons, and a plurality of through holes are provided on the pistons, and sealing plates are respectively fixedly installed on the inner ends of the sliding rods, and the sealing plates can be closely contacted and matched with the side walls of the pistons, and pressure plates are respectively fixedly installed on the outer ends of the sliding rods, and the pressure plates are connected to the pistons by springs, and a plurality of stirring rods are rotatably installed in the mixing box, and a driving rod is installed on the stirring rod through a transmission device, and the end of the driving rod can slide and contact with different pressure plates in turn.

[0006] As described above, a premixed industrial burner is described, wherein an internally threaded tube is rotatably mounted on the tube body via a sealed bearing, the outer end of the internally threaded tube is sealed and fixedly mounted with a handwheel, the inner end thread of the internally threaded tube is threadedly matched with one end of a screw rod, the other end of the screw rod is fixedly connected to the side wall of a piston, the piston and the screw rod are not coaxial, and a limit device for limiting the rotation of the internally threaded tube is provided on the tube body.

[0007] In the premixing industrial burner as described above, the limiting device includes a stop rod, which is rotatably mounted on the tube body via a torsion spring. Under the action of the torsion spring, the stop rod can be in contact with the handle of the hand wheel.

[0008] In the premixing industrial burner as described above, the piston is connected to the inner wall of the tube body through a plurality of telescopic rods.

[0009] A premixed industrial burner as described above, wherein the transmission device includes a rotating shaft, which is rotatably mounted on the side wall of a mixing box through a sealed bearing, a motor is fixedly mounted on the outer side of the mixing box, the output shaft of the motor is fixedly connected to the rotating shaft, a plurality of stirring rods are fixedly mounted on the rotating shaft, a gear is fixedly mounted on the outer periphery of the rotating shaft, one side of the gear is meshed with a transmission gear, the transmission gear is rotatably mounted on the mixing box, one side of the transmission gear is meshed with an inner gear ring, the inner gear ring is rotatably mounted on the mixing box through a bearing, the drive rod is fixedly mounted on the outer periphery of the inner gear ring, and the rotating shaft, the gear and the inner gear ring are coaxially arranged.

[0010] In the premixing industrial burner as described above, a rotating wheel is rotatably mounted on the outer end of the driving rod, and the outer periphery of the rotating wheel can be in contact with and fit against the side wall of the pressure plate.

[0011] The utility model has the advantages of simple structure and ingenious design. The fuel and air are fully mixed evenly by stirring up and down several stirring rods, and the mixing ratio of air and fuel can be changed at the same time, which can meet the actual needs and is suitable for promotion. When using the utility model, firstly, the fuel in the oil storage tank and the air in the air storage tank are filled with the corresponding charging boxes respectively, and the rotation of several stirring rods drives the driving rods connected to them through the transmission device to rotate, and the outer ends of the driving rods are in sliding contact with the pressing plates on the charging boxes corresponding to the oil storage tank and the air storage tank in turn, so that the two charging boxes can add the substances in them into the mixing box respectively; when the outer ends of the driving rods are in sliding contact with the pressing plates, the pressing plates compress the springs, so that the sliding rods and the sealing plates move into the tube body, and at this time, the sealing plates no longer seal the several through holes on the piston, so that the substances in the charging boxes can leak out through the several through holes; by changing the position of the piston between the tube bodies, the time for the outer ends of the driving rods to slide in contact with the pressing plates can be changed, thereby changing the mixing ratio of air and fuel. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 It is a structural schematic diagram of the utility model; Figure 2 for Figure 1 A-direction view; Figure 3 for Figure 1 Enlarged view of middle Ⅰ.

[0014] Figure numerals: 1, mixing box, 2, oil storage tank, 3, air storage tank, 4, feeding box, 5, tube body, 6, piston, 7, slide rod, 8, through hole, 9, sealing plate, 10, pressure plate, 11, spring, 12, stirring rod, 13, driving rod, 14, oil outlet, 20, internal threaded tube, 21, hand wheel, 22, screw, 30, stop rod, 40, telescopic rod, 50, rotating shaft, 51, gear, 52, transmission gear, 53, internal gear ring, 54, motor, 60, rotating wheel. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] A premixed industrial burner, such as Figure 1 , 23, comprising a burner body, the burner body is not drawn in this embodiment, the upper side of the burner body is fixedly connected to the mixing box 1, the lower side of the mixing box 1 is provided with an oil outlet 14, the mixing box 1 is fixedly installed with an oil storage tank 2 and an air storage tank 3, the oil storage tank 2 and the air storage tank 3 are respectively provided with a delivery pipe for adding corresponding fuel or air, and a valve is provided on the delivery pipe, one side of the oil storage tank 2 and the air storage tank 3 is respectively provided with a feeding box 4, and the fuel or air is added to the mixing box 1 through the feeding box 4, and the side walls of the feeding box 4 are respectively provided with a feeding port to communicate with the corresponding oil storage tank 2 or the air storage tank 3, the feeding box 4 corresponding to the oil storage tank 2 is located on the upper side of the mixing box 1, and the internal structure of the mixing box 1 is a material such as ceramic or plastic that is not easy to produce sparks when collided, and it is characterized in that: the feeding box 4 includes a tube body 5, one end of the tube body 5 is closed, and the inside of the tube body 5 can be The piston 6 is provided for adjusting the airtight matching installation, and the slide rod 7 is respectively slidably installed on the piston 6, and the slide hole is provided on the piston 6, and the slide rod 7 is respectively slidably contacted and matched in the slide hole, and several through holes 8 are provided on the piston 6, and several through holes 8 are evenly distributed around the slide rod 7, and the inner end of the slide rod 7 is respectively fixedly installed with a sealing plate 9, and the sealing plate 9 can be closely contacted and matched with the side wall of the piston 6, and the outer end of the slide rod 7 is respectively fixedly installed with a pressing plate 10, and the pressing plate 10 and the piston 6 are connected by a spring 11, and the spring 11 is sleeved on the outer periphery of the slide rod 7, and one end of the spring 11 is fixedly connected with the piston 6, and the other end of the spring 11 is fixedly connected with the side wall of the pressing plate 10, and several stirring rods 12 are rotatably installed in the mixing box 1, and the stirring rod 12 is installed with a driving rod 13 through a transmission device, and the end of the driving rod 13 can be slidably contacted and matched with different pressing plates 10 in sequence. The utility model has a simple structure and an ingenious design. By stirring several stirring rods 12 up and down, the fuel and the air are fully mixed and evenly mixed, and the mixing ratio of the air and the fuel can be changed at the same time, which can meet the actual needs and is suitable for promotion. When using the utility model, firstly, the fuel in the oil storage tank 2 and the air in the air storage tank 3 are filled with the corresponding feeding boxes 4 respectively, and the rotation of the several stirring rods 12 drives the driving rod 13 connected to them through the transmission device to rotate, and the outer ends of the driving rods 13 are in sliding contact with the pressing plates 10 on the feeding boxes 4 corresponding to the oil storage tank 2 and the air storage tank 3 in turn, so that the two feeding boxes 4 can add the substances therein into the mixing box 1 respectively; when the outer ends of the driving rods 13 are in sliding contact with the pressing plates 10, the pressing plates 10 compress the springs 11, so that the sliding rods 7 and the sealing plates 9 move into the tube body 5, and at this time the sealing plates 9 no longer seal the several through holes 8 on the piston 6, so that the substances in the feeding boxes 4 can leak out through the several through holes 8; by changing the position of the piston 6 between the tube body 5, the time for the sliding contact and cooperation between the outer ends of the driving rods 13 and the pressing plates 10 can be changed, thereby changing the mixing ratio of air and fuel.

[0017] Specifically, as shown in the figure, the internal threaded tube 20 is rotatably mounted on the tube body 5 of the present embodiment through a sealed bearing, the outer end of the internal threaded tube 20 is sealed and fixedly mounted with a hand wheel 21, the inner end thread of the internal threaded tube 20 is matched with one end of the screw rod 22, the other end of the screw rod 22 is fixedly connected to the side wall of the piston 6, the piston 6 is not coaxial with the screw rod 22, and a limiting device for limiting the rotation of the internal threaded tube 20 is provided on the tube body 5. The hand wheel 21 can be more convenient and labor-saving when rotating the internal threaded tube 20, and the internal threaded tube 20 is rotated, and the screw rod 22 moves along the internal threaded tube 20, thereby driving the piston 6 to move in the tube body 5, so as to achieve the purpose of adjusting the position of the piston 6 in the tube body 5, and after the adjustment is completed, the rotation of the internal threaded tube 20 is limited by the limiting device.

[0018] Further, as shown in the figure, the limiting device of this embodiment includes a stopper 30, which is rotatably mounted on the tube body 5 through a torsion spring. Under the action of the torsion spring, the stopper 30 can be in contact with the handle of the handwheel 21. When the internal threaded tube 20 needs to be rotated by the handwheel 21, the stopper 30 is manually moved so that the stopper 30 does not contact with the handle of the handwheel 21, and the handwheel 21 can be rotated at will; when the rotation of the internal threaded tube 20 needs to be limited, the stopper 30 is released, and the stopper 30 keeps contacting with the handle of the handwheel 21 under the action of the torsion spring to prevent the handwheel 21 from rotating.

[0019] Furthermore, as shown in the figure, the piston 6 of this embodiment is connected to the inner wall of the tube body 5 through a plurality of telescopic rods 40, the fixed ends of the telescopic rods 40 are respectively fixedly mounted on the inner wall of the tube body 5, and the movable ends of the telescopic rods 40 are respectively fixedly connected to the side walls of the piston 6. The plurality of telescopic rods 40 improves the stability of the piston 6 in the tube body 5.

[0020] Furthermore, as shown in the figure, the transmission device described in this embodiment includes a rotating shaft 50, which is rotatably mounted on the side wall of the mixing box 1 through a sealed bearing, a motor 54 is fixedly mounted on the outer side of the mixing box 1, and the motor 54 is fixedly mounted on the outer side of the mixing box 1 through a connecting rod, and the output shaft of the motor 54 is fixedly connected to the rotating shaft 50, a plurality of stirring rods 12 are fixedly mounted on the rotating shaft 50, and the inner ends of the stirring rods 12 are respectively fixedly mounted on the outer periphery of the rotating shaft 50, and a gear 51 is fixedly mounted on the outer periphery of the rotating shaft 50, and one side of the gear 51 is meshed with a transmission gear 52, and the transmission gear 52 is rotatably mounted on the mixing box 1, and one side of the transmission gear 52 is meshed with an inner gear ring 53, and the inner gear ring 53 is rotatably mounted on the mixing box 1 through a bearing, and the driving rod 13 is fixedly mounted on the outer periphery of the inner gear ring 53, and the rotating shaft 50, the gear 51, and the inner gear ring 53 are coaxially arranged. The output shaft of the motor 54 rotates to drive the rotating shaft 50 to rotate, and then drives the gear 51 and the plurality of stirring rods 12 to rotate. The rotation of the gear 51 drives the transmission gear 52 meshing therewith to rotate, and then drives the inner gear ring 53 and the driving rod 13 to rotate.

[0021] Furthermore, as shown in the figure, the outer end of the driving rod 13 in this embodiment is rotatably mounted with a rotating wheel 60, and the outer periphery of the rotating wheel 60 can abut against and contact the side wall of the pressing plate 10. Compared with the contact between the driving rod 13 and the side wall of the pressing plate 10, the contact between the rotating wheel 60 and the side wall of the pressing plate 10 changes the sliding friction into rolling friction, which greatly reduces the friction between the driving rod 13 and the pressing plate 10.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A premixing industrial burner, comprising a burner body, a mixing box (1) is fixedly connected to the upper side of the burner body, an oil outlet (14) is provided on the lower side of the mixing box (1), an oil storage box (2) and an air storage box (3) are fixedly installed on the mixing box (1), a charging box (4) is provided on one side of the oil storage box (2) and the air storage box (3), and fuel or air is added to the mixing box (1) through the charging box (4), and the charging box (4) corresponding to the oil storage box (2) is located on the upper side of the mixing box (1), characterized in that: The feeding box (4) comprises a tube body (5), one end of which is closed, and a piston (6) is installed in the tube body (5) in an adjustable airtight manner, and a slide rod (7) is slidably installed on the piston (6). The piston (6) is provided with a plurality of through holes (8), and a sealing plate (9) is fixedly installed on the inner end of the slide rod (7), and the sealing plate (9) can be closely contacted with the side wall of the piston (6), and a pressure plate (10) is fixedly installed on the outer end of the slide rod (7), and the pressure plate (10) is connected to the piston (6) through a spring (11). A plurality of stirring rods (12) are rotatably installed in the mixing box (1), and a driving rod (13) is installed on the stirring rod (12) through a transmission device, and the end of the driving rod (13) can be slidably contacted with different pressing plates (10) in sequence.

2. A premixed industrial burner according to claim 1, characterized in that: The tube body (5) is rotatably mounted with an internal threaded tube (20) via a sealed bearing, the outer end of the internal threaded tube (20) is sealed and fixedly mounted with a hand wheel (21), the inner end thread of the internal threaded tube (20) is threadedly mounted with one end of a screw rod (22), the other end of the screw rod (22) is fixedly connected to the side wall of the piston (6), the piston (6) and the screw rod (22) are not coaxial, and a limiting device for limiting the rotation of the internal threaded tube (20) is provided on the tube body (5).

3. A premixed industrial burner according to claim 2, characterized in that: The limiting device comprises a stopper rod (30), which is rotatably mounted on the tube body (5) via a torsion spring. Under the action of the torsion spring, the stopper rod (30) can abut against and contact with the handle of the hand wheel (21).

4. A premixed industrial burner according to claim 2, characterized in that: The piston (6) is connected to the inner wall of the tube body (5) via a plurality of telescopic rods (40).

5. A premixed industrial burner according to claim 1, characterized in that: The transmission device comprises a rotating shaft (50), the rotating shaft (50) is rotatably mounted on the side wall of the mixing box (1) through a sealed bearing, a motor (54) is fixedly mounted on the outer side of the mixing box (1), the output shaft of the motor (54) is fixedly connected to the rotating shaft (50), a plurality of stirring rods (12) are fixedly mounted on the rotating shaft (50), a gear (51) is fixedly mounted on the outer periphery of the rotating shaft (50), one side of the gear (51) is meshed with a transmission gear (52), the transmission gear (52) is rotatably mounted on the mixing box (1), one side of the transmission gear (52) is meshed with an inner gear ring (53), the inner gear ring (53) is rotatably mounted on the mixing box (1) through a bearing, the driving rod (13) is fixedly mounted on the outer periphery of the inner gear ring (53), and the rotating shaft (50), the gear (51) and the inner gear ring (53) are coaxially arranged.

6. A premixed industrial burner according to claim 5, characterized in that: The outer end of the driving rod (13) is rotatably mounted with a rotating wheel (60), and the outer periphery of the rotating wheel (60) can be in contact with and fit against the side wall of the pressing plate (10).

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