CN221172235U - Industrial burner device with large regulation ratio - Google Patents

Abstract

The utility model discloses an industrial burner device with a large regulation ratio, which is characterized in that a flame tube is fixed on a shell bellows assembly by a limit screw; the conical flame stabilizing disc is fixed on the inner side of the shell bellows assembly by a limit screw; the air door shaft penetrates through the shell bellows assembly to fix the air door shaft; the air door plate is fixed on the air door shaft by using screws; the gas distribution block is fixed on the shell bellows assembly by bolts; the ion rod is locked on the rear end face of the gas distribution block by a special locking nut; the high-voltage wire hidden plug is inserted on the tail end of the ion rod. The utility model has scientific and reasonable structural design, simple combustion method, easy realization of automation and intellectualization, the adjustment ratio can reach 42:1, easy realization of controlling the load of the boiler according to the production requirement, simple structure, convenient disassembly and installation and daily maintenance, and safe and reliable use and debugging operation.

Description

Industrial burner device with large regulation ratio

Technical Field

The utility model relates to the technical field of industrial burner equipment, in particular to an industrial burner device with a large regulation ratio.

Background

In the current industrial production, the steam amount actually needed by the on-site production line is required to be changed according to the continuous change of the demand condition of the production order, so that higher requirements are provided for heating equipment, and the requirements of the steam amount needed by the production can be met by adjusting the change of the combustion equipment. An industrial burner device with a large regulation ratio can reduce frequent start and stop of combustion equipment and reduce energy loss for users. In order to meet the demands in industrial production, the most direct and effective method for coping with the large change of order demands and reducing the start-stop times of combustion equipment is to increase the adjustment proportion of the industrial burner device.

The conventional industrial burner device has problems in terms of air-fuel regulation proportion, and can meet the requirements of users in full-load operation, but when the steam consumption is small, namely the gas flow is too small, the combustion air can be sufficiently small due to the factors of the conventional industrial burner structure, but the gas flow velocity is too low, so that incomplete combustion is caused. When the amount of the combustion-supporting air is too large, the phenomena such as flame extinction by wind and the like are easily caused. Therefore, the conventional industrial burner device generally has an adjustment ratio of about 12:1, and obviously cannot meet the actual use demands of the conventional production equipment with the change of the demands of the orders of users. For this purpose, we propose an industrial burner device with a large turndown ratio.

Disclosure of utility model

The utility model aims to provide an industrial burner device with a large adjustment ratio so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: an industrial burner device with large regulation ratio comprises a flame tube, a heat insulation flange pad, a limit screw, a conical flame stabilizing disc, a shell bellows component, a damper shaft, a damper plate, a fan, a gas distribution block, an ion rod, a high-voltage wire hidden plug, a program controller, a control box upper cover, an outer knurled screw, an aviation plug, a control box base, an ignition needle, a double electromagnetic valve, a gas connecting pipe, a gas flow regulating valve, a gas connecting pipe component, an ignition transformer, a cable lock, a knob switch, an air pressure switch, an air regulation rod component, an air connecting block, a gas connecting block and a gas pressure switch;

The flame tube is fixed on the shell bellows assembly by a limit screw; the conical flame stabilizing disc is fixed on the inner side of the shell bellows assembly by a limit screw; the air door shaft penetrates through the shell bellows assembly to fix the air door shaft; the air door plate is fixed on the air door shaft by using screws; the gas distribution block is fixed on the shell bellows assembly by bolts; the ion rod is locked on the rear end face of the gas distribution block by a special locking nut; the high-voltage wire hidden plug is inserted into the tail end of the ion rod; the aviation plug is fixed on the control box base by using screws; after the ignition needle passes through the shell bellows assembly and the conical flame stabilizing disc respectively, the ignition needle is fixed on the shell bellows assembly by a special locking nut; the high-voltage wire hidden plug is arranged at the tail end of the ignition needle; the double electromagnetic valve is screwed on any one end of the gas connecting pipe wound with the raw adhesive tape; the gas flow regulating valve is screwed on the other end of the gas connecting pipe wound with the raw adhesive tape; winding a raw adhesive tape on the threaded end of the gas connecting pipe assembly, screwing the raw adhesive tape on the gas flow regulating valve, and fixing the end of the gas connecting pipe assembly with the sliding flange on the gas distributing block by using a screw; the ignition transformer is fixed on the control box base by using screws; the cable lock head is screwed on the base of the control box, and the high-voltage wire of the high-voltage wire hidden plug is inserted into the ignition transformer after passing through the cable lock head; the knob switch is locked on the control box base; the air pressure switch is fixed on the shell bellows assembly by a butt wire; the air connecting block is fixed on the air valve shaft by a set screw; the gas connecting block is fixed on the gas flow regulating valve.

In the scheme, the side face of the flame tube is provided with the heat insulation flange pad.

In the scheme, the air adjusting rod assembly is used for connecting the air connecting block and the gas connecting block together through the connecting screw.

In the scheme, the fan is fixed on the right side of the shell bellows assembly through screws.

In the scheme, the program controller is fixed on the bracket of the base of the control box by using the screw.

In the scheme, the upper cover of the control box is screwed and fixed on the base of the control box by using the outer knurled screw.

In the scheme, the gas pressure switch is arranged below the fan.

Compared with the prior art, the utility model has the beneficial effects that: the industrial burner device with large regulation ratio has the advantages of simple and reasonable structural design, and has the following advantages:

1. The combustion method is simple, automation and intellectualization are easy to realize, the adjustment ratio can reach 42:1, and the control of the load of the boiler according to the production requirement is easy to realize;

2. the ignition and stopping operation is simple, and cold ignition can be realized;

3. The excess air coefficient alpha is close to 1.0, the smoke exhaust loss is small, no ash slag is generated, the discharge amount of harmful gas is small, and the environment is protected;

4. the waste heat can be utilized to preheat fuel so as to improve the energy utilization rate;

5. The NOX content in the flue gas is low. The oxygen concentration in the combustion process can be controlled to be minimum, the residence time in a high-temperature area is short, the temperature is rapidly reduced after a large amount of kiln gas with lower entrainment temperature is sprayed into the kiln by high-speed high-temperature flame gas, and the heat exchange between the flue gas in the kiln and a green body is strong, so that the temperature of the flue gas is rapidly reduced, and the processes have an inhibition effect on NOX generation.

6. The product has reasonable structural design, simple structure, convenient disassembly and installation and daily maintenance, and safe and reliable use and debugging operation.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model.

FIG. 2 is a schematic diagram of the structure of the present utility model.

FIG. 3 is a schematic diagram of the structure of the present utility model.

In the figure: the flame tube 1, the heat insulation flange pad 2, the limit screw 3, the conical flame stabilizing disc 4, the shell bellows assembly 5, the air door shaft 6, the air door plate 7, the fan 8, the gas distribution block 9, the ion rod 10, the high-voltage wire hidden plug 11, the program controller 12, the control box upper cover 13, the outer knurled screw 14, the aviation plug 15, the control box base 16, the ignition needle 17, the double electromagnetic valve 18, the gas connecting pipe 19, the gas flow regulating valve 20, the gas connecting pipe assembly 21, the ignition transformer 22, the cable lock 23, the knob switch 24, the air pressure switch 25, the air adjusting rod assembly 26, the air connecting block 27, the gas connecting block 28 and the gas pressure switch 29.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: an industrial burner device with large regulation ratio:

The flame tube comprises a flame tube 1, a heat insulation flange pad 2, a limit screw 3, a conical flame stabilizing disc 4, a shell bellows assembly 5, a throttle shaft 6, a throttle plate 7, a fan 8, a gas distribution block 9, an ion rod 10, a high-voltage wire hidden plug 11, a program controller 12, a control box upper cover 13, an outer knurled screw 14, an aviation plug 15, a control box base 16 and an ignition needle 17, as shown in figure 1;

The dual solenoid valve 18, the gas connecting pipe 19, the gas flow regulating valve 20, the gas connecting pipe assembly 21, the ignition transformer 22, the cable lock 23 and the knob switch 24 are shown in fig. 2;

An air pressure switch 25, an air adjusting lever assembly 26, an air connecting block 27, a gas connecting block 28, and a gas pressure switch 29, as shown in fig. 3.

The flame tube 1 is fixed on a shell bellows assembly 5 by a limit screw 3, as shown in fig. 1; the conical flame stabilizing disc 4 is fixed on the inner side of the shell bellows assembly 5 by a limit screw 3, as shown in fig. 1; the damper shaft 6 passes through the housing bellows assembly 5 to secure it thereto as shown in FIG. 1;

The damper plate 7 is fixed on the damper shaft 6 by screws, as shown in fig. 1; the fan 8 is screwed to the right side of the housing bellows assembly 5 as shown in fig. 1; the gas distribution block 9 is screwed to the housing bellows assembly 5, as shown in fig. 1; the ion rod 10 is locked on the rear end face of the fuel gas distribution block 9 by a special locking nut, as shown in fig. 1;

The high-voltage wire hidden plug 11 is inserted on the tail end of the ion rod 10 as shown in fig. 1; the programmer 12 is screwed onto the bracket of the control box base 16, as shown in fig. 1; the upper cover 13 of the control box is screwed and fixed on the base 16 of the control box by using an outer knurled screw 14, as shown in figure 1;

The aviation plug 15 is fixed on the control box base 16 by using screws, as shown in fig. 1; after the ignition needle 17 passes through the shell bellows assembly 5 and the conical flame stabilizing disc 4 respectively, the ignition needle is fixed on the shell bellows assembly 5 by a special locking nut, as shown in fig. 1;

The high-voltage wire hidden plug 11 is arranged at the tail end of the ignition needle 17 as shown in fig. 1; the double solenoid valve 18 is screwed on either end of the raw rubber belt gas connection pipe 19, as shown in fig. 2; the gas flow regulating valve 20 is screwed onto the other end of the raw-tape gas connection pipe 19, as shown in fig. 2;

Raw rubber belts are winded on the threaded end of the gas connecting pipe assembly 21, the raw rubber belts are screwed on the gas flow regulating valve 20, the end of the gas connecting pipe assembly 21 with a sliding flange is fixed on the gas distributing block 9 by screws, as shown in fig. 2;

The ignition transformer 22 is fixed on the control box base 16 by screws, as shown in fig. 2; the cable lock 23 is screwed on the control box base 16, and the high-voltage wire of the high-voltage wire hidden plug 11 is inserted into the ignition transformer 22 after passing through the cable lock 23, as shown in fig. 2; the knob switch 24 will be locked to the control box base 16 as shown in fig. 2;

the air pressure switch 25 is secured to the housing bellows assembly 5 by a pair of wires, as shown in FIG. 1; the air connection block 27 is fixed on the air door shaft 6 by a set screw, as shown in fig. 3; the gas connection block 28 fixes it to the gas flow regulating valve 20 as shown in fig. 3; the gas pressure switch 29 is arranged below the fan 8;

The air adjusting lever assembly 26 connects the air connecting block 27 with the gas connecting block 28 by a connecting screw, and simultaneously adjusts the ratio of the gas intake amount and the combustion air intake amount by the rotation of the servo motor on the gas flow rate adjusting valve 20, as shown in fig. 3.

Working principle:

The operation flow of the industrial burner device with large regulation ratio is as follows: normal operation procedure of the burner: boiler operation condition verification, gas pressure verification, gas valve bank leakage verification, large air door hearth purging, air door operation to an ignition position, ignition transformer operation, ignition solenoid valve operation, ignition flame verification (ignition transformer stop), main gas valve opening, main flame verification (ignition solenoid valve stop), load proportion adjustment, normal shutdown and hearth post purging.

After the fan 8 is started, the throttle plate 7 can be adjusted from 0 degrees to 90 degrees by the movement of the air adjusting rod assembly 26, so that the air inlet quantity of combustion air can be effectively and proportionally controlled according to the gas quantity, and the air-fuel ratio reaches the optimal combustion state. After combustion air enters the inner cavity of the shell bellows assembly 5, the combustion air enters the inner cavity of the flame tube 1 through small holes on the conical flame stabilizing disc 4 from different angles, different directions, different layers and different sizes and is fully and uniformly mixed and combusted with gas ejected from the gas distribution block 9 from different angles, and the combustion air entering through the holes on the conical flame stabilizing disc 4 from different layers, different angles, different directions and different sizes forms secondary distribution and is mixed with the natural gas ejected from the gas distribution block 9 again in an intersecting way, so that the flow supply of the natural gas is small enough to reach 42:1, the flame length is very short, combustion is only carried out at the root, and the combustion air at the far position can not influence the stability of the flame; when the flow supply of natural gas is large enough, the length of flame can be long, and the flame and combustion air are gradually mixed and combusted along the direction of air flow.

The ignition needle 17 serves to ignite the fuel, and after the ignition needle 17 is turned on before the natural gas injection, a high-energy intense arc spark (with a duration of 3 seconds) is generated between one end of the ignition needle 17 and the gas distribution block 9, and the natural gas is ignited whenever the gas is sprayed and the spark is encountered. At this time, the ion rod 10 serves to check whether flame exists, and in order to ensure safe operation of the boiler, it is necessary to ensure that natural gas is continuously burned during the continuous supply of natural gas, otherwise the burning supply is forcibly interrupted immediately. In the combustion process of natural gas, weak ion current exists in the combustion flue gas, the ion current exists, flame has a certain conductive effect, at this time, as long as a certain voltage is applied to the ion rod 10, as long as flame exists, current exists between the ion rod 10 and the ground, and when no flame exists, no current exists between the ion rod 10 and the ground because air is not conductive, and whether flame exists can be judged through the current of the ion rod 10.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. An industrial burner device with large regulation ratio is characterized in that:

The flame tube comprises a flame tube (1), a heat insulation flange pad (2), a limit screw (3), a conical flame stabilizing disc (4), a shell bellows assembly (5), a throttle shaft (6), a throttle plate (7), a fan (8), a gas distribution block (9), an ion rod (10), a high-voltage wire hidden plug (11), a program controller (12), a control box upper cover (13), an outer knurled screw (14), an aviation plug (15), a control box base (16), an ignition needle (17), a double electromagnetic valve (18), a gas connecting pipe (19), a gas flow regulating valve (20), a gas connecting pipe assembly (21), an ignition transformer (22), a cable lock (23), a knob switch (24), an air pressure switch (25), an air regulating rod assembly (26), an air connecting block (27), a gas connecting block (28) and a gas pressure switch (29);

The flame tube (1) is fixed on the shell bellows assembly (5) by a limit screw (3); the conical flame stabilizing disc (4) is fixed on the inner side of the shell bellows assembly (5) by a limit screw (3); the air door shaft (6) penetrates through the shell bellows assembly (5) to fix the air door shaft; the air door plate (7) is fixed on the air door shaft (6) by using screws; the gas distribution block (9) is fixed on the shell bellows assembly (5) by bolts; the ion rod (10) is locked on the rear end face of the gas distribution block (9) by a special lock nut; the high-voltage wire hidden plug (11) is inserted into the tail end of the ion rod (10); the aviation plug (15) is fixed on the control box base (16) by using screws; after the ignition needle (17) passes through the shell bellows assembly (5) and the conical flame stabilizing disc (4) respectively, the ignition needle is fixed on the shell bellows assembly (5) by a special lock nut; the high-voltage wire hidden plug (11) is arranged at the tail end of the ignition needle (17); the double electromagnetic valve (18) is screwed on any one end of a gas connecting pipe (19) wound with a raw adhesive tape; the gas flow regulating valve (20) is screwed on the other end of the gas connecting pipe (19) wound with the raw adhesive tape; the gas connecting pipe assembly (21) is wound with a raw adhesive tape at the threaded end, the raw adhesive tape is screwed on the gas flow regulating valve (20), and the gas connecting pipe assembly (21) is fixed on the gas distributing block (9) by using a screw at the end with a sliding flange; the ignition transformer (22) is fixed on the control box base (16) by bolts; the cable lock head (23) is screwed on the control box base (16), and the high-voltage wire of the high-voltage wire hidden plug (11) is inserted into the ignition transformer (22) after passing through the cable lock head (23); the knob switch (24) is locked on the control box base (16); the air pressure switch (25) is fixed on the shell bellows assembly (5) by a butt wire; the air connection block (27) is fixed on the air valve shaft (6) by a set screw; the gas connection block (28) is fixed on the gas flow regulating valve (20).

2. A large turndown ratio industrial burner apparatus as defined in claim 1 wherein: the side face of the flame tube (1) is provided with a heat insulation flange pad (2).

3. A large turndown ratio industrial burner apparatus as defined in claim 1 wherein: the air adjusting rod assembly (26) connects the air connecting block (27) and the gas connecting block (28) together through connecting screws, and simultaneously adjusts the gas inflow and the combustion air inflow proportion through rotation of a servo motor on the gas flow adjusting valve (20).

4. A large turndown ratio industrial burner apparatus as defined in claim 1 wherein: the fan (8) is fixed on the right side of the shell bellows assembly (5) by screws.

5. A large turndown ratio industrial burner apparatus as defined in claim 1 wherein: the program controller (12) is fixed on a bracket of the control box base (16) by bolts.

6. A large turndown ratio industrial burner apparatus as defined in claim 1 wherein: the control box upper cover (13) is screwed and fixed on the control box base (16) by using an outer knurled screw (14).

7. A large turndown ratio industrial burner apparatus as defined in claim 1 wherein: the gas pressure switch (29) is arranged below the fan (8).