CN111623328A - Full-automatic gas heating steam generating device and steam generating method thereof - Google Patents
Full-automatic gas heating steam generating device and steam generating method thereof Download PDFInfo
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- CN111623328A CN111623328A CN202010573053.8A CN202010573053A CN111623328A CN 111623328 A CN111623328 A CN 111623328A CN 202010573053 A CN202010573053 A CN 202010573053A CN 111623328 A CN111623328 A CN 111623328A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 294
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 239000000523 sample Substances 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 68
- 238000002485 combustion reaction Methods 0.000 claims description 31
- 239000012530 fluid Substances 0.000 claims description 11
- 230000000087 stabilizing effect Effects 0.000 claims description 11
- 241000773945 Trimusculidae Species 0.000 claims description 10
- 239000002737 fuel gas Substances 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 3
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 2
- 230000005484 gravity Effects 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/22—Methods of steam generation characterised by form of heating method using combustion under pressure substantially exceeding atmospheric pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
- F22B31/08—Installation of heat-exchange apparatus or of means in boilers for heating air supplied for combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/42—Applications, arrangements, or dispositions of alarm or automatic safety devices
- F22B37/44—Applications, arrangements, or dispositions of alarm or automatic safety devices of safety valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/42—Applications, arrangements, or dispositions of alarm or automatic safety devices
- F22B37/46—Applications, arrangements, or dispositions of alarm or automatic safety devices responsive to low or high water level, e.g. for checking, suppressing, extinguishing combustion in boilers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
The invention discloses a full-automatic gas heating steam generating device and a steam generating method thereof. The invention comprises a frame, a water vapor system and a gas system. The water vapor system comprises an air outlet tee joint, a water level barrel, a water level probe and a water vapor conveying assembly. The top of the water level barrel is provided with a steam outlet, the middle part of the side surface is provided with a water inlet close to the lower part, the top of the side surface is provided with a steam inlet, and the bottom of the side surface is provided with a water outlet. The water outlet of the water level barrel is connected to the clean water input port of the heat exchanger. The water vapor output port of the heat exchanger is connected with the water vapor input port of the water level barrel. The steam outlet of the water level barrel is connected with the air outlet pipeline. According to the invention, the water-steam mixture is fed back into the water level barrel, the liquid water part in the water-steam mixture falls under the action of gravity in the water level barrel, and the water steam part is influenced by the internal and external pressure difference to be output upwards, so that the water-steam separation is realized on the premise of not arranging a water-steam separator, the cost is reduced and the size of equipment is reduced.
Description
Technical Field
The invention belongs to the technical field of steam generators, and particularly relates to a full-automatic gas heating steam generator system device and a steam generating method thereof.
Background
Steam generator systems, commonly known as boilers, are mechanical devices that use gas to heat water into steam. Has the advantages of gas saving, convenient installation and convenient use, and is widely used in canteens, hotels, clothing factories and the like. Then, during the use process, the phenomenon of burning through of the heat exchanger is caused for various reasons. A large number of experimental researches show that the dry burning of the heat exchanger can be effectively avoided by optimizing measures such as a water flow switch and the like. Therefore, it is an urgent need to develop a safe and reliable steam generator system.
Disclosure of Invention
The invention aims to provide a full-automatic gas heating steam generating device and a steam generating method thereof.
The invention comprises a frame, a water vapor system and a gas system. The water vapor system comprises an air outlet tee joint, a water level barrel, a water level probe and a water vapor conveying assembly. The water vapor transmission assembly comprises a heat exchanger, a water pump and a water flow switch. The heat exchanger comprises a heat exchange shell and a heat exchange pipeline. The water level barrel is fixed on the frame; the top of the water level barrel is provided with a steam outlet, the middle part of the side surface is provided with a water inlet close to the lower part, the top of the side surface is provided with a steam inlet, and the bottom of the side surface is provided with a water outlet. The frame is provided with a water inlet joint; the water inlet joint is connected to the water inlet of the water level barrel through a water inlet electromagnetic valve; the water outlet of the water level barrel is connected with the input port of the water pump. The output port of the water pump is connected to the clean water input port of the heat exchanger through a water flow switch. The water vapor output port of the heat exchanger is connected with the water vapor input port of the water level barrel. The steam outlet of the water level barrel is connected with the air outlet pipeline. The gas system heats the heat exchange pipeline through combustion, so that liquid water in the heat exchange pipeline is evaporated to generate steam.
Preferably, the water flow switch comprises a valve body, an inner cover, a bracket, a first magnet, a second magnet, a mold section, an elastic strip, a self-resetting button and a button shell. A fluid passage is provided in the valve body. The inner cover mounts the side of the valve body and the inner cavity communicates with a fluid passage in the valve body. The middle of the bracket is hinged with the inner cover. The first magnet, the mould section and the two ends of the bracket are respectively fixed. The first magnet is positioned in the inner cavity of the inner cover; the mold halves are located within the valve body. The button housing is fixed to a side of the inner cap adjacent to the input port of the fluid passage. One end of the elastic strip is fixed with the button shell, and the other end of the elastic strip is fixed with a second magnet. The first magnet and the second magnet are arranged opposite to each other across the side wall of the inner cover, and the polarities of the magnetic poles at the opposite ends are the same. The self-reset button is arranged on the button shell, and the pressing contact on the self-reset button props against one side, far away from the support, of the elastic strip.
Preferably, the joint of the inner cover and the valve body is sealed by a sealing ring; the hinged position of the inner support and the inner cover is positioned at the joint of the inner cover and the valve body. Under the initial state, the second magnet supports against the outer side wall of the inner cover under the elastic force of the elastic strip and the self-reset button, the self-reset button is in the bouncing state, and the first magnet supports against one side, away from the second magnet, of the inner cavity of the inner cover under the repulsive force effect of the second magnet. When water flow is input into an input port of the fluid channel in the valve body, the water flow pushes the mold sections to enable the support to turn over, the first magnet moves towards the second magnet, the repulsive force pushes the second magnet to move, and when the moving second magnet enables the elastic strip to deform, the elastic strip presses the self-reset button.
Preferably, an air outlet tee joint is arranged on a steam outlet of the water level barrel; the second interface of the air outlet three-way joint is connected to the air outlet pipeline, and the third interface is connected with the safety valve.
Preferably, four height-adjustable supports are arranged at the bottom of the frame. The heat exchange pipeline passes through the heat exchange shell repeatedly.
Preferably, there are two of the moisture transport assemblies. The water pumps in the two water vapor conveying components are connected with the water outlet interface of the water level barrel through a water outlet tee joint. The gas system comprises a furnace end, a gas flow divider, a gas pressure stabilizing sectional valve, a fan and a wind pressure switch. And the lower part of the heat exchanger is arranged at the furnace end. The gas diverter is fixed on the bottom of the frame; the furnace end, gas steady voltage segmentation valve, fan and wind pressure switch all have two. The input port of the gas splitter is connected with a gas pipeline. Two output ports of the gas flow divider are respectively connected to gas inlets of the combustion chambers in the two heat exchangers through corresponding gas pressure stabilizing section valves and air pressure switches. The two fans are respectively fixed at the bottoms of the two furnace ends. The air outlet of the fan is connected with the blast port of the corresponding furnace end.
Preferably, the furnace end comprises a combustion shell, a deflector, a heat insulation layer and a fire row. The heat insulating layer is arranged on the side wall of the inner cavity of the combustion shell. A plurality of fire rows which are arranged at equal intervals in sequence are arranged on the combustion shell. The top of the fire row is provided with a plurality of air nozzles which are arranged at equal intervals in sequence. The top of the inner cavity of the combustion shell is provided with a plurality of guide plates which surround into a funnel shape.
Preferably, the bottom end of the water level barrel is provided with a water outlet. The bottom of the frame is provided with a drain pipe; the water outlet of the water level barrel is connected to the water outlet pipe through the water outlet electromagnetic valve.
Preferably, the present invention further comprises a control system. The control system comprises a start button, a display panel, a delay relay, a main controller, a transformer, an ignition controller, a water level detection needle, a water flow switch, a wind pressure switch, a temperature control switch, an ignition needle and a feedback needle. The water level probe is installed on the water level barrel and extends into the water level barrel. The ignition needle and the feedback needle are arranged in the combustion chamber. The starting button is arranged at the top of the frame; the display panel is mounted on a side of the frame. The transformer, the delay relay and the controller are all installed on the inner side face of the side door. The temperature control switch is arranged on a heat exchange tube of the heat exchanger. And the starting button and the signal wire of the display panel are connected with the main controller. And signal output lines of the water flow switch, the wind pressure switch, the water level detection needle, the temperature control switch and the feedback needle are all connected with the main controller. And a control input interface of the ignition controller is connected with the main controller. Signal wires of the water inlet electromagnetic valve, the water discharge electromagnetic valve and the ignition needle are connected with an ignition controller; the power supply wire of the ignition needle is connected with a power supply through a controller. And a power supply interface of the water pump is connected to the main controller through a delay relay.
The steam generation method of the full-automatic gas heating steam generation device comprises the following specific steps:
step one, pressing down a switch on a display screen, electrifying a main controller, and detecting the water quantity in a water level barrel by a water level probe; if the water level barrel is lack of water, the main controller controls the water inlet electromagnetic valve to be opened to start water inlet; if the water level in the water level barrel is higher than the threshold value.
Secondly, the ignition controller is controlled to be electrified by the main controller, the water pump is started, and water in the water level barrel is transmitted to a heat exchange pipeline of the heat exchanger through the water pump and the water flow switch; and starting the fan to continuously blow air into the inner cavity of the combustion shell in the furnace end.
And step three, detecting whether the water flow is normal or not by the water flow switch, detecting whether the air blowing of the fan is normal or not by the air pressure switch, and continuously supplying air to the fire grate in the furnace end by the gas pipeline through the gas flow divider and the gas pressure stabilizing sectional valve.
Step four, igniting the fuel gas in the furnace end by an ignition needle; the heat generated by the combustion of the fuel gas heats the water in the heat exchange pipeline, so that the water in the heat exchange pipeline is evaporated to generate a water vapor mixture with coexisting water vapor and water.
Inputting the water vapor mixture in the heat exchange pipeline into a water vapor input port of the water level barrel; the liquid water in the water-vapor mixture falls and is mixed with the water in the water level barrel; the water vapor in the water vapor mixture is upward and is output to the air outlet pipeline from the steam outlet at the top of the water level barrel. If the air pressure in the air outlet pipeline is too high, the water vapor can be released from the safety valve.
The invention has the beneficial effects that:
1. according to the invention, the water-steam mixture is fed back into the water level barrel, the liquid water part in the water-steam mixture falls under the action of gravity in the water level barrel, and the water steam part is influenced by the internal and external pressure difference to be output upwards, so that the water-steam separation is realized on the premise of not arranging a water-steam separator, the cost is reduced and the size of equipment is reduced.
2. According to the invention, the micro water flow switch is improved, the water flow switch is optimized, the stability of the water flow switch is improved, the gas cut-off and fire cut-off can be realized in a water shortage state in time, and the dry burning of the heat exchanger is effectively relieved.
3. According to the invention, through optimizing the control system, indexes such as water flow, air pressure, heat exchange channel temperature, water level in the water level barrel and the like are acquired in real time, so that faults such as dry burning are effectively avoided, and the service life of the steam generating device is greatly prolonged.
4. According to the invention, the guide plate and the heat insulation layer are additionally arranged through the structure in the furnace end, so that the heat generated by gas combustion can be effectively reduced from being diffused to the outside, and the flow cross section area is gradually increased, so that the flow speed of hot gas is reduced, the hot gas is prevented from rising too fast, and the heat generated by gas combustion is fully generated.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a first internal schematic view of the present invention;
FIG. 3 is a second internal view of the present invention;
FIG. 4 is a schematic diagram of the connection of the water vapor system of the present invention;
FIG. 5 is a schematic view of the water flow switch of the present invention;
FIG. 6 is a side view of the burner of the present invention;
fig. 7 is a schematic top view of the burner of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, 2 and 3, the full-automatic gas heating steam generating device comprises a frame 1, a water vapor system, a gas system and a control system. The frame 1 is built by a plurality of angle steels, and four adjustable supports are arranged at the bottom. The frame 1 is provided with a side door.
As shown in fig. 2, 3 and 4, the water vapor system includes a heat exchanger 2, an air outlet tee joint 3, a water level barrel 4, a water level probe 5, a water pump 6, a water flow switch 7 and an air outlet tee joint 8. The heat exchanger 2 comprises a heat exchange housing and heat exchange tubes which reciprocate through the heat exchange housing a plurality of times. When water flows through the heat exchange pipeline, the heat in the heat exchange shell heats the water flow in the heat exchange pipeline to form water vapor. Both heat exchangers 2 are fixed on top of the frame 1. The top of the heat exchange shell is provided with an exhaust port. The two water pumps 6 are both fixed at the bottom of the frame 1; the water level barrel 4 is fixed on the frame 1; the bottom end of the water level barrel 4 is provided with a water outlet 4-1, the top part is provided with a steam outlet 4-2, the middle part of the side surface is provided with a water inlet 4-3 close to the lower part, the top part of the side surface is provided with a steam inlet 4-4, and the bottom part of the side surface is provided with a water outlet 4-5.
The bottom of the frame 1 is provided with a water inlet joint and a water outlet pipe 16; the water inlet joint is connected to a water inlet 4-3 of the water level barrel 4 through a water inlet electromagnetic valve 17 and a corrugated pipe; the drain port 4-1 of the water level bucket 4 is connected to the drain pipe 16 via a drain solenoid valve 18. The water inlet connector is used for being connected to an external water source to realize water inlet. The drain pipe 16 is used to drain the water level tub 4 of excess water. The water outlet port of the water level barrel 4 is respectively connected to the input ports of the two water pumps 6 through a water outlet tee joint 8. The output ports of the two water pumps 6 are respectively connected with the input ports of the two water flow switches 7. The output ports of the two water flow switches 7 are respectively connected with the clean water input ports of the two heat exchangers 2. The clear water output ports of the two heat exchangers 2 are connected with the water vapor input port 4-4 of the water level barrel 4. A steam outlet 4-2 of the water level barrel 4 is connected with a first interface of the air outlet tee joint 3; the second interface of the air outlet three-way joint 3 is connected to an air outlet pipeline and is used for supplying steam for subsequent equipment. And a third interface of the air outlet three-way joint 3 is connected with a safety valve 13 and used for avoiding overhigh air pressure of an air outlet pipeline.
The water flow switch 7 comprises a valve body 7-1, an inner cover 7-2, a bracket 7-3, a first magnet 7-4, a second magnet 7-5, a hinge shaft 7-6, a sealing ring 7-7, a mould section 7-8, an elastic strip, a self-reset button 7-9 and a button shell. A fluid passage is provided in the valve body 7-1 for passing water (the arrow in fig. 5 is the water flow direction). The side part of the valve body 7-1 is provided with an abdicating notch. The inner cover 7-2 is fixed at the yielding gap of the valve body 7-1 and is sealed by a sealing ring 7-7; the middle part of the bracket 7-3 is hinged with the inner cover 7-2 through a hinge shaft 7-6. The hinge shaft 7-6 is located at the junction of the inner cap 7-2 and the valve body 7-1. The first magnet 7-4 and the mould halves 7-8 are respectively fixed with the two ends of the bracket 7-3. The first magnet 7-4 is positioned in the inner cavity of the inner cover 7-2; the die halves 7-8 are located within the valve body 7-1. The button housing is fixed to the side of the inner lid 7-2 near the input port of the fluid passage. One end of the elastic strip is fixed with the button shell, and the other end is fixed with a second magnet 7-5. The first magnet 7-4 and the second magnet 7-5 are arranged opposite to each other across the side wall of the inner lid 7-2, and the magnetic poles at the opposite ends have the same polarity and repel each other. The self-reset button 7-9 is arranged on the button shell, and the contact is propped against one side of the elastic strip, which is far away from the bracket 7-3.
In an initial state, the second magnet 7-5 is pressed against the outer side wall of the inner cover 7-2 under the elastic force of the elastic strip and the self-reset button, the self-reset button 7-9 is in a sprung state, and the first magnet 7-4 is pressed against the side of the inner cavity of the inner cover 7-2 away from the second magnet 7-5 under the repulsive force of the second magnet 7-5. When water flow is input into an input port of a fluid channel in the valve body 7-1, the water flow pushes the mold section 7-8 to turn the support 7-3, the first magnet 7-4 moves towards the second magnet 7-5, the repulsive force pushes the second magnet 7-5 to move, and when the moving second magnet 7-5 deforms the elastic strip, the elastic strip presses the self-reset button 7-9 to send a signal that the water flow passes through to the main controller.
The gas system comprises a gas flow divider 9, a gas pressure stabilizing section valve 10, a fan 11, a furnace end 19 and a wind pressure switch 12. The gas splitter 9 is fixed on the bottom of the frame 1; the number of the gas pressure stabilizing section valve 10 and the wind pressure switch 12 is two. The input port of the gas splitter 9 is connected with a gas pipeline. Two output ports of the gas splitter 9 are respectively connected to gas inlets in two burner heads 19 through corresponding gas pressure stabilizing section valves 10, fans 11 and wind pressure switches 12. Two burners 19 are respectively installed at the lower side of the heat exchanger 2. The two fans 11 are respectively fixed at the bottom of the furnace end. The air outlet of the fan 11 is connected with the blast port of the corresponding furnace end for providing oxygen for combustion.
As shown in FIG. 6, the burner 19 includes a combustion casing 19-1, a baffle 19-2, a heat insulation layer 19-3 and a fire row 19-4. The bottom of the combustion shell 19-1 is provided with a gas inlet and a blast inlet. The inner cavity of the combustion shell is communicated with the inner cavity of the corresponding heat exchange shell. The heat insulation layer 19-3 is arranged on the side wall of the inner cavity of the combustion shell 19-1, so that heat generated by combustion is reduced from being diffused to the outside, energy efficiency is improved, and damage to external electronic components is avoided. A plurality of fire rows 19-4 which are arranged at equal intervals in sequence are arranged on the combustion shell 19-1. The top of the fire row 19-4 is provided with a plurality of air nozzles which are arranged at equal intervals in sequence and are used for ejecting fuel gas to burn so as to heat the heat exchanger. The air inlet of each fire row 19-4 is connected with the fuel gas inlet at the bottom of the combustion shell 19-1. The top of the inner cavity of the combustion shell 19-1 is provided with a plurality of guide plates 19-2 which surround into a funnel shape. The bottom of each baffle 19-2 fits around the top of each fire bank 19-4. The space surrounded by the guide plates 19-2 is gradually increased from the bottom to the top in sectional area, so that the effect of slowing down the flow velocity of hot air can be achieved, and the hot air can be prevented from passing through the heat exchanger too fast, so that the energy consumption is reduced.
The control system comprises a start button 14, a display panel 15, a delay relay, a main controller, a transformer, an ignition controller, a water level detection needle 5, a water flow switch 7, a wind pressure switch 12, a temperature control switch, an ignition needle and a feedback needle. The water level probe 5 is installed on the water level barrel 4 and extends into the water level barrel 4 for detecting the amount of water stored in the water level barrel 4. The ignition needle and the feedback needle are arranged in a combustion shell 19-1 of the furnace end 19. The start button 14 and the display panel 15 are mounted on the side of the frame 1. The transformer, the delay relay and the controller are all installed on the inner side face of the side door. The temperature control switch is arranged on the heat exchange tube of the heat exchanger 2.
The signal lines of the start button 14 and the display panel 15 are connected to the main controller. The water flow switch 7 (an output line from a reset button 7-9), the wind pressure switch 12, the water level probe 5, a signal output line of the temperature control switch, and control interfaces of the water inlet electromagnetic valve 17 and the water discharge electromagnetic valve 18 are all connected with a main controller. And a control input interface of the ignition controller is connected with the main controller. The signal output line of the feedback needle and the signal line of the ignition needle are both connected with the ignition controller; the power supply wire of the ignition needle is connected with a power supply through a controller. And a power supply interface of the water pump is connected to the main controller through a delay relay.
The working principle of the invention is as follows:
step one, pressing a switch on a display screen 15, electrifying a main controller, and detecting the water quantity in a water level barrel 4 by a water level probe 5; if the water level barrel 4 is lack of water, an alarm is given, and the water inlet electromagnetic valve is opened to start water inlet; if the water level in the water level barrel 4 is normal, the display panel 15 displays the water temperature figure (detected by the temperature sensor).
Secondly, the ignition controller is controlled to be electrified by the main controller, the water pump 6 is started, and water in the water level barrel 4 is transmitted to a heat exchange pipeline of the heat exchanger 2 through the water pump 6 and the water flow switch 7; the fan 11 is started to continuously supply air to the inner cavity of the combustion shell in the furnace end.
And step three, feeding back signals to the main controller by the water flow switch 7 and the air pressure switch 12, and continuously supplying air to the fire grate in the burner by a gas pipeline through a gas flow divider 9, a gas pressure stabilizing sectional valve 10 and a fan 11.
Step four, igniting the fuel gas in the furnace end by an ignition needle; the heat generated by the combustion of the fuel gas heats up the water in the heat exchange pipeline, so that the water in the heat exchange pipeline is evaporated to generate a water vapor mixture with coexisting water vapor and water.
Inputting the water vapor mixture in the heat exchange pipeline into a water vapor input port 4-4 of the water level barrel 4; the liquid water in the water-vapor mixture falls and is mixed with the water in the water level barrel 4; the water vapor in the water vapor mixture is upward and is output to the air outlet pipeline from a steam outlet 4-2 at the top of the water level barrel 4. If the air pressure in the air outlet pipe is too high, the water vapor can be released from the safety valve 13.
Claims (10)
1. A full-automatic gas heating steam generating device comprises a frame, a water vapor system and a gas system; the method is characterized in that: the water vapor system comprises an air outlet three-way joint, a water level barrel, a water level probe and a water vapor conveying component; the water vapor conveying component comprises a heat exchanger, a water pump and a water flow switch; the heat exchanger comprises a heat exchange shell and a heat exchange pipeline; the water level barrel is fixed on the frame; the top of the water level barrel is provided with a steam outlet, the middle part of the side surface is provided with a water inlet close to the lower part, the top of the side surface is provided with a steam inlet, and the bottom of the side surface is provided with a water outlet; the frame is provided with a water inlet joint; the water inlet joint is connected to the water inlet of the water level barrel through a water inlet electromagnetic valve; the water outlet of the water level barrel is connected with the input port of the water pump; the output port of the water pump is connected to the clean water input port of the heat exchanger through a water flow switch; the water vapor output port of the heat exchanger is connected with the water vapor input port of the water level barrel; the steam outlet of the water level barrel is connected with the air outlet pipeline; the gas system heats the heat exchange pipeline through combustion, so that liquid water in the heat exchange pipeline is evaporated to generate steam.
2. The full-automatic gas heating steam generating device according to claim 1, characterized in that: the water flow switch comprises a valve body, an inner cover, a bracket, a first magnet, a second magnet, a mould section, an elastic strip, a self-resetting button and a button shell; a fluid channel is arranged in the valve body; the inner cover is arranged on the side part of the valve body, and the inner cavity is communicated with the fluid channel in the valve body; the middle part of the bracket is hinged with the inner cover; the first magnet, the mould section and two ends of the bracket are respectively fixed; the first magnet is positioned in the inner cavity of the inner cover; the mould halves are positioned in the valve body; the button shell is fixed on one side of the inner cover close to the input port of the fluid channel; one end of the elastic strip is fixed with the button shell, and the other end of the elastic strip is fixed with a second magnet; the first magnet and the second magnet are arranged opposite to each other through the side wall of the inner cover, and the polarities of the magnetic poles at the opposite ends are the same; the self-reset button is arranged on the button shell, and the pressing contact on the self-reset button props against one side, far away from the support, of the elastic strip.
3. The full-automatic gas heating steam generating device according to claim 2, characterized in that: the joint of the inner cover and the valve body is sealed by a sealing ring; the hinged position of the inner support and the inner cover is positioned at the joint of the inner cover and the valve body; in an initial state, the second magnet props against the outer side wall of the inner cover under the elastic force of the elastic strip and the self-reset button, the self-reset button is in a bouncing state, and the first magnet props against one side of the inner cavity of the inner cover, which is far away from the second magnet, under the repulsive force of the second magnet; when water flow is input into an input port of the fluid channel in the valve body, the water flow pushes the mold sections to enable the support to turn over, the first magnet moves towards the second magnet, the repulsive force pushes the second magnet to move, and when the moving second magnet enables the elastic strip to deform, the elastic strip presses the self-reset button.
4. The full-automatic gas heating steam generating device according to claim 1, characterized in that: an air outlet tee joint is arranged on a steam outlet of the water level barrel; the second interface of the air outlet three-way joint is connected to the air outlet pipeline, and the third interface is connected with the safety valve.
5. The full-automatic gas heating steam generating device according to claim 1, characterized in that: the bottom of the frame is provided with four height-adjustable supports; the heat exchange pipeline passes through the heat exchange shell repeatedly.
6. The full-automatic gas heating steam generating device according to claim 1, characterized in that: the number of the water vapor conveying assemblies is two; the water pumps in the two water vapor conveying assemblies are connected with the water outlet interface of the water level barrel through a water outlet tee joint; the gas system comprises a furnace end, a gas flow divider, a gas pressure stabilizing sectional valve, a fan and a wind pressure switch; the lower part of the heat exchanger arranged on the furnace end; the gas diverter is fixed on the bottom of the frame; the number of the furnace end, the gas pressure stabilizing section valve, the fan and the wind pressure switch is two; the input port of the gas splitter is connected with a gas pipeline; two output ports of the gas flow divider are respectively connected to gas inlets of the combustion chambers in the two heat exchangers through corresponding gas pressure stabilizing section valves and air pressure switches; the two fans are respectively fixed at the bottoms of the two furnace ends; the air outlet of the fan is connected with the blast port of the corresponding furnace end.
7. The full-automatic gas heating steam generator according to claim 6, characterized in that: the furnace end comprises a combustion shell, a guide plate, a heat insulation layer and a fire grate; the heat insulation layer is arranged on the side wall of the inner cavity of the combustion shell; a plurality of fire rows which are arranged at equal intervals in sequence are arranged on the combustion shell; the top of the fire row is provided with a plurality of air nozzles which are arranged at equal intervals in sequence; the top of the inner cavity of the combustion shell is provided with a plurality of guide plates which surround into a funnel shape.
8. The full-automatic gas heating steam generating device according to claim 1, characterized in that: a water outlet is formed in the bottom end of the water level barrel; the bottom of the frame is provided with a drain pipe; the water outlet of the water level barrel is connected to the water outlet pipe through the water outlet electromagnetic valve.
9. The full-automatic gas heating steam generator according to claim 6, characterized in that: the system also comprises a control system; the control system comprises a start button, a display panel, a delay relay, a main controller, a transformer, an ignition controller, a water level detection needle, a water flow switch, a wind pressure switch, a temperature control switch, an ignition needle and a feedback needle; the water level probe is arranged on the water level barrel and extends into the water level barrel; the ignition needle and the feedback needle are arranged in the combustion chamber; the starting button is arranged at the top of the frame; the display panel is arranged on the side surface of the frame; the transformer, the delay relay and the controller are all arranged on the inner side surface of the side door; the temperature control switch is arranged on a heat exchange tube of the heat exchanger; the starting button and the signal wire of the display panel are both connected with the main controller; the signal output lines of the water flow switch, the wind pressure switch, the water level probe, the temperature control switch and the feedback needle are all connected with a main controller; the control input interface of the ignition controller is connected with the main controller; signal wires of the water inlet electromagnetic valve, the water discharge electromagnetic valve and the ignition needle are connected with an ignition controller; the power supply line of the ignition needle is connected with a power supply through a controller; and a power supply interface of the water pump is connected to the main controller through a delay relay.
10. The steam generating method of the fully automatic gas heating steam generating device as claimed in claim 9, wherein: step one, pressing down a switch on a display screen, electrifying a main controller, and detecting the water quantity in a water level barrel by a water level probe; if the water level barrel is lack of water, the main controller controls the water inlet electromagnetic valve to be opened to start water inlet; if the water level in the water level barrel is higher than the threshold value;
secondly, the ignition controller is controlled to be electrified by the main controller, the water pump is started, and water in the water level barrel is transmitted to a heat exchange pipeline of the heat exchanger through the water pump and the water flow switch; starting a fan, and continuously blowing air to the furnace end;
thirdly, detecting whether the water flow is normal or not by a water flow switch, detecting whether the air blowing of the fan is normal or not by a wind pressure switch, and continuously supplying gas to the furnace end by a gas pipeline through a gas flow divider and a gas pressure stabilizing sectional valve;
step four, igniting the fuel gas in the furnace end by an ignition needle; the heat generated by the combustion of the fuel gas heats the water in the heat exchange pipeline, so that the water in the heat exchange pipeline is evaporated to generate a water vapor mixture with coexisting water vapor and water;
inputting the water vapor mixture in the heat exchange pipeline into a water vapor input port of the water level barrel; the liquid water in the water-vapor mixture falls and is mixed with the water in the water level barrel; the water vapor in the water vapor mixture is upward and is output to the air outlet pipeline from the steam outlet at the top of the water level barrel; if the air pressure in the air outlet pipeline is too high, the water vapor can be released from the safety valve.
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| KR200375258Y1 (en) * | 2004-11-18 | 2005-02-07 | 영 무 한 | Submarine combustion evaporator |
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