CN217606283U - Natural gas spray gun cooling control system for glass production - Google Patents
Natural gas spray gun cooling control system for glass production Download PDFInfo
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- CN217606283U CN217606283U CN202221561206.8U CN202221561206U CN217606283U CN 217606283 U CN217606283 U CN 217606283U CN 202221561206 U CN202221561206 U CN 202221561206U CN 217606283 U CN217606283 U CN 217606283U
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Abstract
The utility model discloses a natural gas spray gun cooling control system for glass production, which comprises a main gas cooling loop, a standby gas cooling loop and a control system; the main gas cooling loop and the standby gas cooling loop are connected to the input end of a cooling pipeline of the natural gas spray gun and used for providing cooling gas for the natural gas spray gun; the control system is used for controlling one of the main gas cooling loop and the standby gas cooling loop to start and work to provide cooling gas for the natural gas spray gun. The utility model has the advantages that: two gas cooling loops are adopted, so that the stability and reliability of cooling are ensured, and the defect that one loop fails and cannot work is avoided; the main and standby two-path working scheme is adopted, and one path is started after a fault occurs, so that safety and reliability are guaranteed; the common gas loop is adopted, the cost is reduced, and the cooling work and the fault switching control of the gas loop can be accurately controlled through the flow and the pressure for monitoring.
Description
Technical Field
The utility model relates to a glass production field, in particular to natural gas spray gun cooling control system for glass production.
Background
The natural gas spray gun is a component in the glass production process, and can burn alternately in the glass production process, and needs to be cooled when not burning, so that the spray gun is protected from being damaged; the stop of the spray gun causes the risk of production stop and influences the normal production; the constant use of high pressure gas also results in higher costs. In general, prior art cooling systems with a single high pressure gas loop are not able to meet the requirements of safety, stability and economy.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's not enough, provide a natural gas spray gun cooling control system for glass production, guaranteed the reliable cooling of spray gun through two cooling circuit of activestandby.
In order to realize the purpose, the utility model discloses a technical scheme be: a natural gas spray gun cooling control system for glass production comprises a main gas cooling loop, a standby gas cooling loop and a control system; the main gas cooling loop and the standby gas cooling loop are connected to the input end of a cooling pipeline of the natural gas spray gun and used for providing cooling gas for the natural gas spray gun; the control system is used for controlling one of the main gas cooling loop and the standby gas cooling loop to start and work to provide cooling gas for the natural gas spray gun.
The main gas cooling loop comprises an air pipeline, one end of the air pipeline is connected with the fan, and the other end of the air pipeline is connected with the input end of the cooling pipeline of the natural gas spray gun; the air pipeline is provided with a second cut-off valve, the standby gas cooling loop is provided with a first cut-off valve, and the output end of the control system is respectively connected with the first switching valve and the second switching valve so as to control the conduction of the main gas cooling loop and the standby gas cooling loop.
The control system comprises a frequency converter and a flowmeter, wherein the flowmeter is arranged in the air pipeline and used for collecting the air flow in the air pipeline, the output end of the flowmeter is connected with the frequency converter, the output end of the frequency converter is connected with the fan, and the frequency converter carries out frequency conversion adjustment on the fan based on the preset air flow and the air flow collected by the flowmeter.
The frequency converter is connected with the man-machine interaction module, and preset gas flow of the air pipeline is input through the man-machine interaction module.
The control system further comprises a local control button box, wherein the local control button box comprises a start button SF and an emergency stop button SS; the emergency stop button SS, the start button SF and the relay KA3 are connected in series to form an in-situ control loop, and two ends of the in-situ control loop are respectively connected with the anode and the cathode of an in-situ power supply; and a normally open contact KA31 of the relay KA3 is connected in series with a connecting line between a starting output port and a COM port of the frequency converter.
The control system also comprises a remote start relay KA1 and a remote stop relay KA2, one end of a normally open contact KA11 of the relay KA1 is connected with the anode of a remote control power supply, and the other end of the normally open contact KA11 is connected with the cathode of a local power supply after sequentially passing through an emergency stop button SF and a relay KA 3; a normally closed contact KA21 of the relay KA2 is connected in series in the local control loop; and a normally open contact KA22 is connected in series in a connecting loop between the frequency converter stop work enabling output end and the COM end.
The control system further comprises a green indicator light, the green indicator light is connected with the frequency converter, the frequency converter drives the green indicator light to be turned on when in operation, the green indicator light is turned on, the second cut-off valve linked with the turn-on state of the green indicator light is opened, and the first cut-off valve is closed.
An indicator light loop formed by connecting the green indicator light L1 and the operating contact R4R5 of the frequency converter in series is respectively connected with the anode and the cathode of the master control power supply, and the operating terminal R4R5 is closed when the frequency converter is in an operating state, otherwise, the frequency converter is disconnected; the relay KA4 is connected in parallel with two ends of the green indicating lamp L1, and a normally open contact KA41 of the relay KA4 is connected in series in a power supply loop of the first cut-off valve.
The control system further comprises a red indicator light, the red indicator light is connected with the frequency converter, and the frequency converter drives the red indicator light to be turned on and drives the alarm to send an alarm signal when the frequency converter fails.
And a pressure transmitter is arranged in the air pipeline and outputs a low-pressure alarm signal to drive a red indicator lamp to light up and output a fault.
The parallelly connected relay KA5 that sets up in red pilot lamp both ends, relay KA5 coil is driven when red pilot lamp is driven to switch on, relay KA 5's contact sets up in the start-up control circuit of first trip valve and in the close control circuit of second trip valve.
The utility model has the advantages that: two gas cooling loops are adopted, so that the stability and reliability of cooling are ensured, and the defect that one loop fails and cannot work is avoided; the main and standby two-path working scheme is adopted, and one path is started after a fault occurs, so that safety and reliability are guaranteed; the common gas loop is adopted, so that the cost is reduced, and the cooling work and the fault switching control of the gas loop can be accurately controlled through the flow and the pressure for monitoring; the frequency converter is arranged to drive the screw motor, so that the flow can be automatically adjusted according to the set flow; the on-site start button and the emergency stop button are arranged, so that the control reliability and safety are ensured, and the main cooling loop can be started and closed at any time according to requirements.
Drawings
The contents of the expressions in the various figures of the present specification and the labels in the figures are briefly described as follows:
fig. 1 is a schematic diagram illustrating the principle of the main/standby gas cooling circuit of the control system of the present invention;
FIG. 2 is a control schematic diagram of the frequency converter of the present invention;
fig. 3 is a schematic diagram of the control system of the present invention.
The reference numbers in the figures are respectively: (1) a first shut-off valve; (2) a second shut-off valve; (3) a spring type pressure reducing valve; (4) a pressure transmitter; (5) a flow meter; (6) a screw fan; (6) a screw fan; 7. a second air duct; 8. a first air duct; 9. the cooling pipeline input end of the natural gas spray gun.
Detailed Description
The following description of preferred embodiments of the invention will be made in further detail with reference to the accompanying drawings.
This application mainly is to a gas circuit of prior art break down easily and influence the defect of spray gun work and prior art adopt special compressed gas's defect with high costs, designs two cooling circuit and adopts screw fan to provide the cooling air, and is with low costs and more reliable, has guaranteed the timely reliable and stable cooling of spray gun in the glass production, and concrete scheme is as follows:
as shown in FIG. 1, a cooling control system of a natural gas spray gun for glass production comprises a main gas cooling loop, a standby gas cooling loop and a control system; the main gas cooling loop and the standby gas cooling loop are connected to the input end of a cooling pipeline of the natural gas spray gun and used for providing cooling gas for the natural gas spray gun so as to cool the spray gun; the control system is used for controlling one of the main gas cooling loop and the standby gas cooling loop to start to work to provide cooling gas for the natural gas spray gun. In this application, the main gas cooling circuit is controlled to be a main gas supply circuit, and the standby gas cooling circuit can be opened after the fault of the main gas cooling circuit, so that the main and standby switching can be realized, and the fact that one circuit of the main gas cooling circuit provides gas for cooling the spray gun is ensured at any time, thereby ensuring the reliable cooling of the spray gun.
According to the cooling control method and the cooling control device, a main gas cooling loop is used for cooling control, and a standby cooling gas loop is started only after the main gas cooling loop fails, so that the design of the main gas cooling loop comprises a second air pipeline and a screw fan, the screw fan is used for providing cooling air, one end of the second air pipeline is connected with the screw fan, the other end of the second air pipeline is connected with the input end of a cooling pipeline of a natural gas spray gun, the second air pipeline is used for blowing the cooling air generated by the screw fan into the cooling pipeline of the natural gas spray gun through the second air pipeline, and therefore the purpose that the cooling air is provided for the spray gun is achieved; and a second stop valve is arranged in the second air pipeline and is used for controlling the second air pipeline to be opened and closed, so that whether the pipeline is ventilated or not is realized.
A first cut-off valve is arranged in the standby gas cooling circuit and used for controlling the opening and closing of a gas circuit in the standby gas cooling circuit. The output end of the control system is respectively connected with the first cut-off valve and the second cut-off valve and is used for respectively controlling the opening and the closing of the first cut-off valve and the second cut-off valve, so that the opening and the closing of the main gas cooling loop and the standby gas cooling loop are controlled.
As shown in figures 2 and 3, the control system comprises a frequency converter and a flowmeter, wherein the flowmeter is arranged in an air pipeline and used for collecting the air flow in the air pipeline, the output end of the flowmeter is connected with the frequency converter, the output end of the frequency converter is connected with a fan, and the frequency converter carries out frequency conversion adjustment on the fan based on the preset air flow and the air flow collected by the flowmeter. The preset gas flow value in the pipeline can realize data input through the man-machine interaction system, the frequency converter is connected with the man-machine interaction system, and the preset gas flow of the air pipeline is input through the man-machine interaction system.
The human-computer interaction system comprises a PLC (programmable logic controller) and a human-computer interaction unit, wherein the human-computer interaction unit comprises a display screen, a key keyboard, a mouse, a touch screen and the like and is mainly used for inputting relevant manually set data values into the PLC, and the PLC is connected to the frequency converter through a communication interface so as to send set data into the frequency converter.
As shown in fig. 3, a specific schematic diagram of a control system is used for driving and controlling the operation of the frequency converter and correspondingly switching and controlling the two cut-off valves, and a specific circuit is as follows:
the control system also comprises a local control button box, wherein the local control button box comprises a start button SF and an emergency stop button SS; the emergency stop button SS, the start button SF and the relay KA3 are connected in series to form an in-situ control loop, and two ends of the in-situ control loop are respectively connected with the anode and the cathode of an in-situ power supply; and a normally open contact KA31 of the relay KA3 is connected in series with a connecting line between a starting output port and a COM port of the frequency converter. One end of the start button SF is connected with the anode of the local power supply, the other end of the start button SF is connected to the coil of the relay KA3 after passing through the emergency stop button SS, and the coil of the relay KA3 is grounded; one end of a normally open contact of the KA3 is connected with a starting output port of the frequency converter, and the other end of the normally open contact of the KA3 is connected with the COM of the frequency converter; therefore, a local control loop can be closed through a local start button SF on site, the coil of the KA3 relay is electrified, the normally open contact KA31 of the relay is closed, the start output port and the COM of the frequency converter are conducted, the frequency converter starts to work, the fan can be controlled by the frequency converter to work, and air for cooling is provided for the spray gun.
In order to realize self-sustaining, this application adopts relay KA 3's normally open contact KA32, and normally open contact KA32 one end is connected and is always controlled the power, and the other end is connected to between SF and the SS, just so can accomplish the self-sustaining of SF closed back KA32 relay for the converter does not influence emergency stop button SS's work again when continuously working.
Still include remote start relay KA1 and remote stop relay KA2 in this application, remote start relay KA1, KA 2's relay control is driven by the control signal of remote monitoring end, and the normally open contact KA11 one end of relay KA1 is connected the remote control power positive pole, and the other end is connected in the return circuit between start button SF and emergency stop button SS, and relay KA 2's normally closed contact K21 (terminal 41, 42) concatenates in the return circuit between SF and the KA3 coil. And a normally open contact KA22 is connected in series in a connecting loop between the frequency converter stop work enabling output end and the COM end. When the remote control KA2 is started, the normally closed contact KA21 is disconnected, the KA3 relay loses power, the frequency converter is disconnected between the frequency converter starting output port and the COM port and does not work, meanwhile, the KA22 is closed, so that a stopping loop of the frequency converter is triggered, and the frequency converter stops working.
In this application, control system still includes the green pilot lamp, and the green pilot lamp is connected with the converter, and the converter drives the green pilot lamp and lights and opens the chain second trip valve of green pilot lamp lighting state, first trip valve is closed when the operation.
The green pilot lamp L1 connects the positive negative pole of always controlling the power respectively with the pilot lamp return circuit that the operation contact R4R5 of converter formed after concatenating promptly green pilot lamp L1 one end ground connection, the operation contact R4R5 that the other end passes through connects always controlling the power, when the converter work, its operation contact R4, R5 is closed, then the green pilot lamp lights and gives work and reminds, simultaneously at the parallelly connected setting of green pilot lamp both ends by relay KA4, opening and closing of first trip valve and the second trip valve in the control pipeline of relay KA4 mainly used. When the frequency converter is in the running state, the running terminal R4R5 is closed, otherwise, the frequency converter is opened; wherein relay KA4 connects in parallel at green pilot lamp L1 both ends, and normally open contact KA41 of relay KA4 concatenates the setting in the power supply loop of second trip valve.
The alarm device further comprises a red indicating lamp, the red indicating lamp is connected with the frequency converter, and the frequency converter drives the red indicating lamp to be turned on and drives the alarm device to send out an alarm signal when the frequency converter breaks down. The two ends of the red indicator lamp are provided with the relay KA5 in parallel, the coil of the relay KA5 is driven when the red indicator lamp is driven to be conducted, and contacts of the relay KA5 are arranged in a starting control loop of the first cut-off valve and a closing control loop of the second cut-off valve. The specific circuit principle of the circuit shown in fig. 3 includes: one end of the red indicator light is grounded, the other end of the red indicator light is connected with the master control power supply through a fault contact R1R2 of the frequency converter, and the fault contact is closed after the frequency converter fails, so that the red indicator light is turned on to give a warning of the abnormal working fault of the frequency converter; the two ends of the red indicator lamp are connected with coils of the relay KA5 in parallel, when the red indicator lamp is lightened, the relay KA5 is electrified, normally open contacts KA51 (31 and 34) of the relay are connected in series in a power supply loop of the fault electric bell, and when the relay KA5 is in fault, the normally open contacts are closed, and the electric bell is electrified to give an alarm; the other contacts of the relay KA5 are used for driving and controlling the opening and closing of the first cut-off valve and the second cut-off valve. And a normally closed contact K52 of the relay KA5 is connected in series between the coil KA3 and the emergency stop button SS.
The pressure transmitter is arranged in the air pipeline, a low-voltage fault contact BP of the pressure transmitter is closed when the air pressure is low and is connected with two ends of a fault output terminal R1R2 of the frequency converter in parallel, and therefore the red indicator lamp can be driven to be electrified for alarming when the air pressure in the loop is low.
The contact of KA4 relay and KA5 relay is also used for controlling the opening and closing of the first cut-off valve and the second cut-off valve. In the application, due to the main gas cooling loop corresponding to the second cut-off valve, the second cut-off valve needs to be controlled to be opened and the first cut-off valve is closed when the frequency converter works normally; when the frequency converter is abnormal or the pressure is abnormal, the red indicator lamp gives an alarm, the second cut-off valve needs to be closed, and the first cut-off valve needs to be opened, so that the standby gas cooling loop is started to work. In order to achieve the purpose, the circuit of the application is realized by normally open contacts of KA4 and KA5 as shown in FIG. 3, the normally open contact of KA4 is used for driving the second cut-off valve to be opened and driving the first cut-off valve to be closed, and the normally open contact of KA5 is used for driving the second cut-off valve to be opened and driving the first cut-off valve to be closed; therefore, when the relays KA4 and KA5 are respectively electrified, the corresponding contact can control one of the cut-off valves to work.
In this application the converter is connected with the PLC controller, receives the control signal of PLC controller and can work according to the control signal of PLC controller, can export trouble or running operating condition. The remote control relays KA1 and KA2 can be used for remote monitoring control of the PLC.
Spare gas cooling circuit can be the compressed gas return circuit in this application, because the compressed gas cooling effect is quick but with high costs, this application regard it as spare circuit, can be unusual or the main loop can't satisfy the heat dissipation requirement at the main loop and start spare circuit down, and spare circuit is including compressed air pipeline also be first wind channel, and its input compressed gas is provided with first cut-off valve and spring relief pressure valve in first wind channel.
The method has two sets of natural gas spray gun cooling gas pipelines. In normal conditions, the shut-off valve is closed for a long time (1), and the shut-off valve is opened for a long time (2). The field is equipped with (6) a screw fan for automatic frequency conversion adjustment to control the gas production, (5) a flowmeter for real-time detection of the gas flow in the pipeline, and (4) a pressure transmitter for real-time detection of the gas pressure in the pipeline. (1) And (2), (4), (5) and (6) are electrically connected with the PLC to realize automatic control. (3) The spring type pressure reducing valve is original compressed air pipeline equipment, and the equipment is used for reducing the pressure of compressed air conveyed by a pipeline and then supplying the compressed air to a natural gas spray gun to be used as cooling air.
And (3) after the required natural gas cooling gas flow is set, feeding back the natural gas cooling gas flow to the screw fan (6) through signals, and comparing the real-time flow acquired by the flowmeter (5) with the real-time flow acquired by the screw fan (6) to perform automatic frequency conversion adjustment. (4) The pressure transmitter detects the gas pressure in the pipeline, when the cooling gas pressure in the pipeline is lower than a set value, the PLC requires a delay chain shutdown, the PLC controls to open (1) the stop valve and close (2) the stop valve, and the natural gas spray gun is ensured to be cooled normally. And (4) performing shutdown troubleshooting, manually starting (6) the screw fan after normal operation, opening (2) the stop valve, closing (1) the stop valve, and recovering automatic control.
The working principle in the above fig. 3 is described as follows: the spray gun cooling gas pipeline (1) shut off valve of normal condition is closed, (2) the shut off valve is opened (6) the screw fan opens the operation, the scene is provided with local control button box, the button box includes start button SF and scram button SS, relay KA3 actuation when pressing the SF button, KA3 actuation normally open contact closure reaches self-locking control simultaneously and makes KA3 be in the actuation state for a long time, KA3 actuation another set of normally open contact controls the converter for the converter start signal point control starts, this moment (6) the screw fan starts the operation, (6) the screw fan can send the running signal after the operation in R4, R5 end foot closure, R4, the closed back drive KA4 relay actuation simultaneously with HGR green operation pilot lamp light this moment state is fan normal operating condition, relay KA4 actuation last two sets of normally open contact closure electrical apparatus on the shut off valve (2) the shut off valve open simultaneously drive in the electrical map 1 (1) shut off valve. When the SS button is pressed, the relay KA3 is disconnected to stop the screw fan (6). (6) If a fault occurs in the operation process of the screw fan, a fault signal is sent out when the R1 end pin and the R2 end pin are closed, the KA5 relay is attracted and simultaneously the HGR red indicating lamp is lightened after the R1 end pin and the R2 end pin are closed, the state is (6) the fault state of the screw fan, (4) the pressure transmitter is provided with a low pressure signal, a pressure signal node is led to the KA5 relay, when the pressure of the pressure transmitter is low and alarms, (4) the BP node is closed to attract the KA5 relay, (6) the fault lamp of the screw fan frequency converter is lightened, (6) the fault HGR red lamp of the screw fan is lightened, and meanwhile, the system is also provided with an HA1 alarm electric bell, (6) the alarm electric bell can sound when the screw fan is in fault, and then an operator or a maintenance worker (6) needs to maintain and process the fault of the screw fan as soon as possible. The relay KA5 actuation after-action electric appliance is provided with two groups of normally open contacts to close and drive the cut-off valves in the graph 1 (1) to open and simultaneously drive the cut-off valves in the graph 1 (2) to close, so that when the screw fan (6) is not in the operation state, namely the KA4 is not in the actuation state, the on-site production is not influenced, the normally closed contacts of the KA4 can drive the cut-off valves in the graph 1 (1) to open and simultaneously drive the cut-off valves in the graph 1 (2) to close. The system is also provided with remote control, a relay KA1 is a remote control starting node, a relay KA2 is a remote control stopping node in the figure 3, and KA1 and KA2 signals are sent out by a central control room.
The flowmeter and the pressure transmitter are mounted on the pipeline (5) and can display real-time flow and real-time pressure values, when the screw fan is in a normal operation state (6), the flowmeter feeds back signals to be connected with the input end of the screw fan (6) to realize a flow closed-loop control mode, and when the pressure transmitter (4) displays that the numerical value is lower than a set value, the pressure transmitter (4) can send a pressure low signal to prompt that the pressure is in a fault state of the screw fan (6).
The stable and reliable cooling of the spray gun is ensured through the main path and the standby path, the screw motor is used as a main loop wind generating component, the cost is lower, and the cooling requirement is met; the remote control system can be controlled locally or remotely, is convenient to control and operate, and has the advantages of simple operation, low cost, stability, reliability, monitoring, alarming and the like.
It is clear that the specific implementation of the invention is not restricted to the above-described embodiments, but that various insubstantial modifications of the inventive process concept and technical solutions are within the scope of protection of the invention.
Claims (10)
1. The utility model provides a natural gas spray gun cooling control system for glass production which characterized in that: comprises a main gas cooling loop, a standby gas cooling loop and a control system; the main gas cooling loop and the standby gas cooling loop are connected to the input end of a cooling pipeline of the natural gas spray gun and used for providing cooling gas for the natural gas spray gun; the control system is used for controlling one of the main gas cooling loop and the standby gas cooling loop to start and work to provide cooling gas for the natural gas spray gun.
2. The natural gas lance cooling control system for glass production as defined in claim 1 wherein: the main gas cooling loop comprises an air pipeline, one end of the air pipeline is connected with the fan, and the other end of the air pipeline is connected with the input end of the cooling pipeline of the natural gas spray gun; the air pipeline is provided with a second cut-off valve, the standby gas cooling loop is provided with a first cut-off valve, and the output end of the control system is respectively connected with the first switching valve and the second switching valve so as to control the conduction of the main gas cooling loop and the standby gas cooling loop.
3. The natural gas lance cooling control system for glass production as defined in claim 2 wherein: the control system comprises a frequency converter and a flowmeter, wherein the flowmeter is arranged in the air pipeline and used for collecting the air flow in the air pipeline, the output end of the flowmeter is connected with the frequency converter, the output end of the frequency converter is connected with the fan, and the frequency converter carries out frequency conversion adjustment on the fan based on the preset air flow and the air flow collected by the flowmeter.
4. A natural gas lance cooling control system for glass production as in claim 3 wherein: the frequency converter is connected with the man-machine interaction module, and preset gas flow of the air pipeline is input through the man-machine interaction module.
5. The glass manufacturing natural gas lance cooling control system of claim 3, wherein: the control system further comprises a local control button box, wherein the local control button box comprises a start button SF and an emergency stop button SS; the emergency stop button SS, the start button SF and the relay KA3 are connected in series to form an in-situ control loop, and two ends of the in-situ control loop are respectively connected with the anode and the cathode of an in-situ power supply; and a normally open contact KA31 of the relay KA3 is connected in series with a connecting line between a starting output port and a COM port of the frequency converter.
6. The glass manufacturing natural gas lance cooling control system of claim 5, wherein: the control system further comprises a remote start relay KA1 and a remote stop relay KA2, one end of a normally open contact KA11 of the relay KA1 is connected with the anode of a remote control power supply, and the other end of the normally open contact KA11 is connected with the cathode of a local power supply after sequentially passing through an emergency stop button SF and a relay KA 3; a normally closed contact KA21 of the relay KA2 is connected in series in the local control loop; and a normally open contact KA22 is connected in series in a connecting loop between the frequency converter stop work enabling output end and the COM end.
7. The cooling control system for a natural gas lance for glass production according to any one of claims 3 to 6, wherein: the control system also comprises a green indicator light, the green indicator light is connected with the frequency converter, and the frequency converter drives the green indicator light to be turned on when in operation and interlocks the turn-on state of the green indicator light with the opening of the second cut-off valve and the closing of the first cut-off valve;
an indicator light loop formed by connecting the green indicator light L1 and the operating contact R4R5 of the frequency converter in series is respectively connected with the anode and the cathode of the master control power supply, and the operating terminal R4R5 is closed when the frequency converter is in an operating state, otherwise, the frequency converter is disconnected; the relay KA4 is connected with two ends of the green indicating lamp L1 in parallel, and a normally open contact KA41 of the relay KA4 is connected in series in a power supply loop of the second cutoff valve.
8. The cooling control system for a natural gas lance for glass production according to any one of claims 3 to 6, wherein: the control system further comprises a red indicator light, the red indicator light is connected with the frequency converter, and the frequency converter drives the red indicator light to be turned on and drives the alarm to send an alarm signal when the frequency converter fails.
9. The glass manufacturing natural gas lance cooling control system of claim 8, wherein: and a pressure transmitter is arranged in the air pipeline and outputs a low-pressure alarm signal to drive a red indicator lamp to light up and output a fault.
10. The glass manufacturing natural gas lance cooling control system of claim 8, wherein: the parallelly connected relay KA5 that sets up in red pilot lamp both ends, relay KA5 coil is driven by the drive when red pilot lamp is switched on, relay KA 5's contact sets up in the start-up control circuit of first trip valve and in the close control circuit of second trip valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221561206.8U CN217606283U (en) | 2022-06-21 | 2022-06-21 | Natural gas spray gun cooling control system for glass production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221561206.8U CN217606283U (en) | 2022-06-21 | 2022-06-21 | Natural gas spray gun cooling control system for glass production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217606283U true CN217606283U (en) | 2022-10-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221561206.8U Active CN217606283U (en) | 2022-06-21 | 2022-06-21 | Natural gas spray gun cooling control system for glass production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217606283U (en) |
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2022
- 2022-06-21 CN CN202221561206.8U patent/CN217606283U/en active Active
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