CN217503648U

CN217503648U - Novel industrial burner

Info

Publication number: CN217503648U
Application number: CN202221255807.6U
Authority: CN
Inventors: 陈加淮
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-09-27
Anticipated expiration: 2032-05-24

Abstract

A novel industrial burner comprises a burner body, an electromagnetic valve, a pressure regulating module, a temperature transmitter, a power supply module, a manual valve, a fuel gas control circuit and an ignition circuit; the burner body gas pipe is connected with one end of the electromagnetic valve and one end of the manual valve in parallel, and the other end of the electromagnetic valve and the other end of the manual valve are connected with the natural gas pipe in parallel; the temperature transmitter probe is installed in the furnace, and the voltage regulating module, the power supply module, the gas control circuit and the ignition circuit are installed in the electric cabinet and are electrically connected. When the temperature was too high in this novel furnace, gas control circuit can control the solenoid valve and close, and the burning natural gas volume can reduce, the synchronous entering air volume can reduce in the income furnace, and the temperature reduces in the furnace, has realized the interior temperature purpose of automatically regulated furnace, and when the burning things which may cause a fire disaster extinguishes in furnace, the power that can the automatic switch-on point firearm, and then the interior natural gas of furnace that will extinguish ignites. This is novel to have guaranteed the heating effect, and has prevented that the gas from extinguishing the potential safety hazard that brings after.

Description

Novel industrial burner

Technical Field

The utility model relates to a combustor equipment technical field, especially a novel industrial burner.

Background

Burners are widely used industrial equipment, and for example, burners for heating boilers, burners for heating furnaces in metal heat treatment plants, and the like are two types of burners. Industry is with combustor structure generally includes combustor body and supporting air-blower, burning torch and so on regardless, the burner of combustor etc. is located the furnace that fires burning furnace, in the application, the air-blower provides sufficient air for the combustor, before natural gas and air get into the burner of combustor through the gas pipe and the air hose of combustor, then the staff opens the switch of burning torch, burning torch produces the electric spark and ignites the natural gas and then the gas burns at the burner front end, heat the equipment of being heated (such as boiler etc.), close switch after lighting.

The existing burner is limited by the structure, for example, the patent name of China is 'a multi-flame split type low-nitrogen burner', the patent number '202120655831.8', although the existing burner can achieve higher combustion efficiency, but has certain technical problems more or less, and the specific embodiment is as follows. One is as follows: when the combustor burns, a device for adjusting the temperature is not provided, so that when the natural gas flow is unstable, especially when the flow is suddenly increased, the temperature in the combustion furnace is increased, and further, the temperature of the heated device is too high, which causes unpredictable accidents (such as melting of heated metal aluminum, increase of the internal pressure of the boiler and damage); the second step is as follows: the ignition mode control of a common burner is in an artificial mode, so that when a fire source is extinguished due to various reasons (such as sudden interruption and recovery of gas supply), if a worker does not ignite gas in time, the normal operation of heated equipment is adversely affected, and the gas leaks out of a furnace, so that great potential safety hazards (such as poisoning of the worker or explosion of the fire source) exist. In view of the above, it is desirable to provide a burner capable of preventing the combustion temperature from being too high and automatically igniting when the ignition source is extinguished during combustion.

SUMMERY OF THE UTILITY MODEL

In order to overcome current industrial burner because of the structure limit exists as the background the drawback, the utility model provides a based on industrial burner body, under relevant mechanism and circuit combined action in the application, can real-time supervision furnace in the temperature data, can the automatically regulated get into the gas and the air quantity of combustion head when the high temperature, reduce the temperature, can automatic a period of inscribe switch on the power of burning torch when extinguishing because of various reasons burning things which may cause, light the gas, heating effect has effectively been guaranteed from this, the adverse effect of bringing for the equipment work that is heated is prevented to the temperature anomaly, and brought the facility for the staff, a novel industrial burner of potential safety hazard has been prevented to bring after the gas is extinguished.

The utility model provides a technical scheme that its technical problem adopted is:

a novel industrial burner comprises a burner body, an electromagnetic valve, a pressure regulating module, a temperature transmitter, a power supply module and a manual valve, and is characterized by also comprising a gas control circuit and an ignition circuit; the gas pipe of the burner body is connected with one end of the electromagnetic valve and one end of the manual valve in parallel, and the other end of the electromagnetic valve and the other end of the manual valve are connected with the natural gas pipe in parallel; the temperature transmitter probe is arranged in the hearth, and the pressure regulating module, the power supply module, the fuel gas control circuit and the ignition circuit are arranged in the electric cabinet; the control power supply input end of the gas control circuit is electrically connected with the power supply output end of the voltage regulating module; the signal power supply output end of the fuel gas control circuit is electrically connected with the electromagnetic valve and the power supply input end of the air blower of the burner body respectively, and the power supply output end of the ignition circuit is electrically connected with the igniter power switch of the burner body; and the signal output end of the temperature transmitter is electrically connected with the signal input end of the gas control circuit, and the signal output end of the gas control circuit is electrically connected with the signal input end of the ignition circuit.

Further, the solenoid valve is a normally closed spool solenoid valve; the power supply module is an AC-to-1 DC switching power supply module

Furthermore, the fuel gas control circuit comprises an operational amplifier, an adjustable resistor, a PNP triode and a relay which are electrically connected, one end of a first adjustable resistor is connected with the positive power input end of the operational amplifier and the emitter of the PNP triode, the other end of the first adjustable resistor is connected with one end of the first resistor, the non-inverting input end of the operational amplifier is connected, one end of a second adjustable resistor is connected with one end of a second resistor and the inverting input end of the operational amplifier, the other end of a first resistor is connected with the other end of the second resistor, the negative power input end of the operational amplifier, the negative power input end of a first relay and the negative power input end of the second relay, the output end of the operational amplifier is connected with one end of a third resistor, the other end of the third resistor is connected with the base electrode of a PNP triode, the collector electrode of the PNP triode is connected with the positive power input end of the first relay, and the normally open contact end of the first relay is connected with the positive power input end of the relay.

Further, the ignition circuit comprises an adjustable resistor, a resistor, an NPN triode, a relay and a time control switch which are electrically connected, one end of the adjustable resistor is connected with one end of the resistor and the base of the NPN triode, a collector of the NPN triode is connected with the input end of a negative power supply of the relay, a normally closed contact end of the relay is connected with the input end of a positive power supply of the time control switch, the other end of the resistor is connected with an emitter of the NPN triode and the input end of a negative power supply of the time control switch, and the input end of a positive power supply of the relay is connected with the input end of a control power supply.

The utility model has the advantages that: the utility model discloses all functions that have ordinary industrial combustor. In this is novel, the natural gas is in the combustion of furnace, when the high temperature in the furnace because of various reasons, gas control circuit can control the solenoid valve and temporarily close, and the natural gas can only get into the combustion head internal combustion of combustor through manual valve like this, and the air quantity that the natural gas volume that promptly enters into the combustion of furnace internal combustion at this moment can reduce, the synchronous air volume that gets into can reduce, and the temperature reduces relatively in the furnace, has realized the purpose of automatically regulated furnace internal temperature. In this is novel, under ignition circuit and platinum rhodium thermocouple temperature transmitter combined action, when the burning things which may cause a fire disaster in furnace extinguishes because of various reasons, can automatic switch on the power of some firearms in a period of time, and then ignite the natural gas in the furnace that will extinguish. This is novel has effectively guaranteed the heating effect, has prevented that the temperature anomaly from giving the adverse effect that heated equipment work brought, and has brought the facility for the staff, has prevented that the gas from extinguishing the potential safety hazard of bringing. Based on the above, so the utility model discloses good application prospect has.

Drawings

The invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a circuit diagram of the present invention.

Detailed Description

As shown in fig. 1 and 2, a novel industrial burner comprises an industrial burner body 5 with an ignition gun 1 and a blower M, an electromagnetic valve DC1, a pressure regulating module a5, a platinum-rhodium thermocouple temperature transmitter a2, a power supply module a1 and a manual valve 2, wherein a burner head 3 of the burner body is installed in a hearth of a combustion furnace 4, an air outlet pipe of the blower M is connected with an air pipe of the burner body 5 through a pipeline, and the industrial burner also comprises a fuel gas control circuit 6 and an ignition circuit 7; a gas pipe of the burner body 5 is connected with one end of a solenoid valve DC1 and one end of a manual valve 2 in parallel through a three-way pipe by screw threads, and the other end of the solenoid valve DC1 and the other end of the manual valve 2 are connected with a natural gas pipe through pipelines by screw threads and a three-way pipe; a through hole is transversely formed in the front of a hearth of the combustion furnace 4, the platinum-rhodium thermocouple temperature transmitter A2 is transversely and hermetically arranged in the through hole, a front-end probe of the platinum-rhodium thermocouple temperature transmitter A2 is positioned at the upper end (in contact with external fire of the combustion head) of a combustion head 3 of the burner body, and the rear part of the platinum-rhodium thermocouple temperature transmitter A2 is positioned outside the hearth; the pressure regulating module A5, the power supply module A1, the fuel gas control circuit 6 and the ignition circuit 7 are installed on a circuit board in the electric cabinet 8, and the electric cabinet 8 is installed at the side end of the blower M.

As shown in fig. 1 and 2, the electromagnetic valve DC1 is a normally closed valve core electromagnetic valve with working voltage of direct current 12V and power of 2W; the voltage regulating module A4 is an AC power supply voltage regulator; the platinum-rhodium thermocouple temperature transmitter A2 is a rhodium thermocouple temperature transmitter finished product with the model number SBWRP2-230, the detection temperature of the platinum-rhodium thermocouple temperature transmitter is 1600 ℃, the working voltage direct current is 12V, the platinum-rhodium thermocouple temperature transmitter is provided with two power lines 1 and 2 pins and a signal output line 3 pin, the detected temperature of a front-end probe is different during working, and the signal output line 3 pin can output voltage signals changing between 0 and 10V; the power supply module A1 is a finished product of a 220V/12V/1KW AC 220V-to-12V DC switching power supply module with the power of 200W. The gas control circuit comprises an operational amplifier A3, adjustable resistors RP1 and RP, resistors R2, R1 and R3, a PNP triode Q1 and relays K1 and K2 which are connected through circuit board wiring, one end of a first adjustable resistor RP1 is connected with a pin 7 of a positive power input end of the operational amplifier A3 and an emitter of a PNP triode Q1, the other end of a first adjustable resistor RP1 is connected with one end of a first resistor R2 and a pin 3 of a non-inverting input end of the operational amplifier A3, one end of a second adjustable resistor RP is connected with one end of a second resistor R1 and a pin 2 of an inverting input end of the operational amplifier A3, the other end of the first resistor R2 is connected with one end of a third resistor R3, a pin 4 of a negative power input end of the operational amplifier A3, a pin of a first relay K3 and a power input end of a second relay K3, a pin 6 of an output end of the operational amplifier A3 is connected with one end of a third resistor R3, and a negative electrode of the PNP triode Q3 are connected with a collector of the PNP triode Q3, the normally open contact end of the first relay K1 is connected with the positive power supply input end of the relay K2. The ignition circuit comprises an adjustable resistor RP2, a resistor R4, an NPN triode Q2, a relay K3 and a time control switch A4 which are connected through circuit board wiring, one end of the adjustable resistor RP2 is connected with one end of the resistor R4 and a base of the NPN triode Q2, a collector of the NPN triode Q2 is connected with a negative power supply input end of the relay K3, a normally closed contact end of the relay K3 is connected with a pin 1 of a positive power supply input end of the time control switch A4, the other end of the resistor R4 is connected with an emitter of the NPN triode Q2 and a pin 4 of a negative power supply input end of the time control switch A4, and a positive power supply input end of the relay K3 is connected with a control power supply input end.

As shown in fig. 1 and 2, power input ends 1 and 2 of a power module a1, power input ends 1 and 2 of a voltage regulating module a5 and two poles of an alternating current 220V power supply are respectively connected through leads, a

power output end

3 and 4 of a power module a1, power input ends 1 and 2 of a platinum-rhodium thermocouple temperature transmitter a2, one end of a power input end adjustable resistor RP1 and the other end of a resistor R2 of a gas control circuit, a power input end relay K3 control power input end of an ignition circuit, and an emitter of an NPN triode Q2 are respectively connected through leads. The control power supply input end of the fuel gas control circuit is connected with the power supply output end pin 3 of the voltage regulating module A5 through a lead by a relay K2; and a signal power supply output end relay K1 normally open contact end and a negative power supply input end of the fuel gas control circuit are connected with a power supply input end of the electromagnetic valve DC1 through leads. The normally closed contact end and the normally open contact end of the relay K2 are respectively connected with the head end of a motor speed regulating winding H2 and the tail end of a main winding H3 of the blower M, and the tail end of a speed regulating winding H2 and the head end of an auxiliary winding H1 through leads. The power supply output end of the ignition circuit is connected with the

pins

3 and 4 of the time control switch A4 and the two power supply input ends of the igniter DH through leads respectively; the pin 3 of the signal output end of the platinum-rhodium thermocouple temperature transmitter A2 is connected with the other end of the signal input end adjustable resistor RP of the fuel gas control circuit through a lead, and the other end of the signal output adjustable resistor RP of the fuel gas control circuit and the other end of the signal input end adjustable resistor RP2 of the ignition circuit are connected through a lead.

Fig. 1, 2 show, the utility model discloses have all functions of ordinary industry combustor, in the application, air-blower M provides sufficient air and before the combustion head 3 that gets into the combustor through the air hose for the combustor, the natural gas gets into through the case of manual valve 2 and solenoid valve DC1 before the combustion head 3 that gets into the combustor through the gas pipe, then the staff opens the switch of burning torch DH, burning torch DH produces the electric spark and ignites the natural gas and then the gas is at the combustion head 3 front end burning, the equipment of heating (such as boiler etc.), close switch after lighting. After a 220V alternating current power supply enters the power supply input ends of the power supply module A1 and the voltage regulating module A5, the modules are powered on to work. The power output end 3 and the pin 4 of the power supply module A1 can output stable direct current 12V power to enter the power input ends of the platinum-rhodium thermocouple temperature transmitter A2, the fuel gas control circuit and the ignition circuit, so that the circuits and the platinum-rhodium thermocouple temperature transmitter A2 are electrified to work. In this novel, the temperature that produces after the natural gas burning in the furnace can act on platinum rhodium thermocouple temperature transmitter A2's detecting head, and the voltage signal of platinum rhodium thermocouple temperature transmitter A2's 3 feet output, get into adjustable resistance RP other end voltage signal when the temperature is high relatively, then relatively low otherwise. In practical situations, when the temperature is appropriate (for example, lower than 1200 ℃, it is to be noted that a temperature threshold value can be set, which will be described later), a voltage signal output by the platinum-rhodium thermocouple temperature transmitter a2 is divided by the adjustable resistor RP and the resistor R1, and then enters the inverting input terminal 2 of the operational amplifier A3, where the voltage is lower than the voltage of the non-inverting input terminal 3 of the operational amplifier A3 (the voltage of the non-inverting input terminal is divided by the adjustable resistor RP1 and the resistor R2, and is set to 6V, for example), and the pin 6 of the operational amplifier A3 outputs a high level, so that the relay K1 is not powered, and the solenoid valve DC1 is not powered; thus, the electromagnetic valve DC1 is powered off, the inner valve core is opened, the natural gas enters a combustion head in the combustor through the electromagnetic valve DC1 and the manual valve 2, the inner amount of the combustion head is relatively large (a worker can adjust the opening and closing degree of the valve core of the manual valve 2 through manually adjusting the valve rod of the manual valve 2, and further can adjust the amount of the natural gas entering the combustor body 5, and control the temperature in the hearth; meanwhile, one pole of an alternating current power supply output by a pin 4 of the voltage regulating module A5 enters one end of a motor running capacitor C of the blower M, and the other pole of the alternating current power supply output by a pin 3 of the voltage regulating module A5 enters between the head end of a motor speed regulating winding H2 and the tail end of a main winding H3 of the blower M through a relay K2 control power supply input end and a normally closed contact end, so that the motor works under the highest power to provide proper air for the burner body 5 under the condition of relatively large flow of natural gas and guarantee the requirement on the air in combustion because the length between the auxiliary winding H1 and the speed regulating winding H2 is relatively long.

As shown in fig. 1 and 2, in practical situations, when the temperature in the furnace chamber is very high (for example, higher than 1200 ℃, it should be noted that the temperature threshold can be set, which will be described later), the voltage signal output by the pt-rh thermocouple temperature transmitter a2 is divided by the adjustable resistor RP and the resistor R1, then the voltage signal enters the inverting input terminal 2 pin of the operational amplifier A3 and is higher than the voltage of the non-inverting input terminal 3 pin of the operational amplifier A3, the pin 6 of the operational amplifier A3 outputs a low level, the low level enters the base of the PNP triode Q1 through the resistor R3 by current limiting, the PNP triode Q1 conducts the collector thereof to output a high level and enters the positive power input terminal of the relay K1, the relay K1 is powered to pull in the control power input terminal and the normally open contact terminal thereof to be closed, and then the relay K2 is electrified to attract (meanwhile, the electromagnetic valve DC1 is electrified to work, and the inner valve core of the electromagnetic valve is closed), the control power supply input end and the normally open contact end are closed, and the control power supply input end and the normally closed contact end are opened. After the electromagnetic valve DC1 is powered on, because the internal valve core is closed, natural gas only enters the combustion head in the combustor through the manual valve 2, the natural gas amount is relatively small, and thus the natural gas amount of the combustion head is reduced and the temperature in the hearth is reduced. After the relay K2 is electrified to attract the control power supply input end and the normally open contact end of the relay K2 to be closed, one pole of an alternating current power supply output by 4 pins of the voltage regulating module A4 enters one end of the air blower M, the other pole of the alternating current power supply output by 3 pins of the voltage regulating module A4 enters between the tail end of a motor speed regulating winding H2 and the head end of an auxiliary winding H1 of the air blower M through the control power supply input end and the normally open contact end of the relay K2, therefore, the length of the motor between the auxiliary winding H1 and the speed regulating winding H2 is relatively shortened, the motor works at relatively low power to provide proper air for the burner body 5 under the condition of relatively low flow natural gas, and the requirement for the air in combustion is guaranteed (the air quantity is too large, the combustion temperature is reduced due to too small natural gas quantity, even the fire source is extinguished, and the air quantity is reduced to guarantee the requirement for natural gas combustion). When the temperature in the subsequent hearth is reduced to be relatively low again, in this way, a voltage signal output by the platinum-rhodium thermocouple temperature transmitter A2 is subjected to voltage division through the adjustable resistor RP and the resistor R1 and then enters the inverting input end 2 pin of the operational amplifier A3 to be lower than the voltage of the non-inverting input end 3 pin of the operational amplifier A3 again, the 6 pin of the operational amplifier A3 outputs high level again, the relays K1 and K2 lose power again, in this way, the electromagnetic valve DC1 loses power again, relatively large-flow natural gas enters the burner body again, and the blower M works at relatively high power again to provide relatively large-flow air for the burner body, so that the requirements of relatively large-flow natural gas combustion and relatively large-flow air are met. Through the aforesaid, this is novel just can keep the temperature in the furnace can not exceed the setting value always.

As shown in fig. 1 and 2, when the burner body is normally burning, a voltage signal output by pin 3 of the pt-rh thermocouple temperature transmitter a2 (a flame of the burner acts on a probe of the transmitter a 2) is divided by the adjustable resistor RP and the resistor R1, and then enters the other end of the adjustable resistor RP2, and when the burner body 5 is normally burning, a voltage signal output by pin 3 of the pt-rh thermocouple temperature transmitter a2 is divided by the adjustable resistor RP2 and the resistor R4, and then enters the base of the NPN triode Q2 and is higher than 0.7V, so that the NPN triode Q2 conducts a collector to output a low level and enters the negative power input end of the relay K3, so that the relay K3 is powered to pull the control power input end and the normally closed contact end of the relay, and the power input end of the igniter cannot be powered and no electric spark can be generated. When the burner body does not normally burn any more, the voltage signal output by the pin 3 of the platinum-rhodium thermocouple temperature transmitter A2 (the flame of the burner does not act on the probe of the transmitter A2 any more) is divided by the adjustable resistor RP and the resistor R1 and then enters the other end of the adjustable resistor RP2, because the burner body 5 does not normally burn and extinguish any more, the voltage signal output by the pin 3 of the platinum-rhodium thermocouple temperature transmitter A2 is divided by the adjustable resistor RP2 and the resistor R4 and then enters the base of the NPN triode Q2 to be lower than 0.7V, so that the collector of the NPN triode Q2 is cut off and no longer outputs low level to the negative power input end of the relay K3, the relay K3 loses power and does not attract the control power input end and the normally closed contact end, further, the positive power input end of the time control switch A4 is powered, and the time control switch A4 is powered under the action of the power output time of the internal circuit and the

3 and 4 output power set by technicians, The

pins

3 and 4 output 5 seconds of power supply first, and then output 5 seconds of power supply into the power supply input end of the igniter DH every 10 seconds, so that electric sparks are generated in the time of the igniter DH working by being electrified to ignite the extinguished fire source. When the ignition source at the combustion head of the burner is ignited again, as the voltage signal output by the pin 3 of the platinum-rhodium thermocouple temperature transmitter A2 enters the base electrode of the NPN triode Q2 and is higher than 0.7V again, the relay K2 is electrified to attract and the time control switch A4 is deenergized, so that the igniter DH does not work any more to finish the ignition process. After the main power switch is not turned off, all circuits are completely powered off and do not work any more. Through all above-mentioned circuits and mechanism combined action, this novel when because of the high temperature in the various reasons furnace, can the interior temperature of automatically regulated furnace, when the fire source was extinguish because of various reasons in the furnace, can light the interior natural gas of furnace that extinguishes, guaranteed the heating effect, prevented that the temperature from giving the adverse effect that the equipment work of being heated brought unusually, and brought the facility for the staff, prevented that the gas from extinguishing the potential safety hazard that the back brought. When the novel detection temperature sensor is produced or used, technicians open the electric cabinet to adjust different resistance values of the adjustable resistor RP to set temperature thresholds in the furnace, when the resistance value of the adjustable resistor RP is adjusted to be relatively large, the partial pressure is large (the partial pressure of the resistor R1 is small), so when the temperature in the furnace is relatively high and the voltage signal output by the pin 3 of the platinum-rhodium thermocouple temperature transmitter A2 is relatively high, the pin 6 of the operational amplifier A3 can output low level, namely the threshold value of the novel detection temperature becomes large; when the resistance value of the adjustable resistor RP is adjusted to be relatively small, the voltage division is small (the voltage division of the resistor R1 is large), and then when the temperature in the hearth is relatively low and the voltage signal output by the pin 3 of the platinum-rhodium thermocouple temperature transmitter A2 is relatively low, the pin 6 of the operational amplifier A3 outputs a low level, namely the threshold value of the novel detection temperature becomes low. In the circuit, the motor of the blower M is an alternating current operation motor, the capacitor specification is 15 muF/400V, and the motor power is 1.5KW (a tapping winding is arranged between a main winding and an auxiliary winding); the operational amplifier A3 is an operational amplifier integrated circuit of a model μ A741; the model of the NPN triode Q2 is 9013; the resistances of the resistors R1, R2, R3 and R4 are 20K, 25K, 4.7K and 15K respectively; the specifications of the adjustable resistors RP1, RP and RP2 are 470K (the adjustable resistors are respectively adjusted to 15K, 25K and 100K in the embodiment); relays K1, K2, K3 are DC12V direct current relays; the model of the PNP triode Q2 is 9012; the time control switch A4 is a microcomputer time controller product with model KG316, and has two power input ends, two power output ends, and seven setting keys, wherein, the technician can set the time of 3 and 4 pins output power by operating the seven keys respectively; voltage regulator a5 is an alternating current voltage regulator of type STG-5000W, and has two power input terminals and two power output terminals, and the voltage output by

pins

3 and 4 can be changed by adjusting a knob (located outside an opening at the front end of an electric cabinet).

The basic principles and essential features of the invention and the advantages of the invention have been shown and described above, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but rather can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, the embodiments do not include only one independent technical solution, and such description is only for clarity, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A novel industrial burner comprises a burner body, an electromagnetic valve, a pressure regulating module, a temperature transmitter, a power supply module and a manual valve, and is characterized by also comprising a gas control circuit and an ignition circuit; the gas pipe of the burner body is connected with one end of the electromagnetic valve and one end of the manual valve in parallel, and the other end of the electromagnetic valve and the other end of the manual valve are connected with the natural gas pipe in parallel; the temperature transmitter probe is arranged in the hearth, and the pressure regulating module, the power supply module, the fuel gas control circuit and the ignition circuit are arranged in the electric cabinet; the control power supply input end of the gas control circuit is electrically connected with the power supply output end of the voltage regulating module; the signal power supply output end of the fuel gas control circuit is electrically connected with the electromagnetic valve and the power supply input end of the air blower of the burner body respectively, and the power supply output end of the ignition circuit is electrically connected with the igniter power switch of the burner body; and the signal output end of the temperature transmitter is electrically connected with the signal input end of the gas control circuit, and the signal output end of the gas control circuit is electrically connected with the signal input end of the ignition circuit.

2. The new industrial burner as claimed in claim 1 wherein the solenoid valve is a normally closed spool solenoid valve; the power supply module is an AC-to-DC switching power supply module.

3. A novel industrial burner as claimed in claim 1 wherein the gas control circuit comprises an operational amplifier, an adjustable resistor, a PNP triode and a relay electrically connected, one end of a first adjustable resistor is connected to the positive power input of the operational amplifier and the emitter of the PNP triode, the other end of the first adjustable resistor is connected to one end of the first resistor and the non-inverting input of the operational amplifier, one end of a second adjustable resistor is connected to one end of the second resistor and the inverting input of the operational amplifier, the other end of the first resistor is connected to the other end of the second resistor, the negative power input of the operational amplifier, the negative power input of the first relay and the second relay, the output of the operational amplifier is connected to one end of the third resistor, the other end of the third resistor is connected to the base of the PNP triode, the collector of the PNP triode is connected to the positive power input of the first relay, the normally open contact end of the first relay is connected with the positive power supply input end of the relay.

4. The industrial burner as claimed in claim 1, wherein the ignition circuit comprises an electrically connected adjustable resistor, a resistor, an NPN triode, a relay and a time switch, one end of the adjustable resistor is connected with one end of the resistor and the base of the NPN triode, the collector of the NPN triode is connected with the negative power input end of the relay, the normally closed contact end of the relay is connected with the positive power input end of the time switch, the other end of the resistor is connected with the emitter of the NPN triode and the negative power input end of the time switch, and the positive power input end of the relay is connected with the control power input end.