A high-efficiency, high-temperature, universal liquid-gas combustion heat core device

Abstract

This invention discloses a high-efficiency, high-temperature, universal liquid-gas combustion core device, comprising a core rod, a gas cylinder, a fuel tank, a negative pressure air pump, and an air pump. The core rod is fixed inside an outer casing, with its vertical main pipe extending into the casing. An exhaust pipe is located on the bottom surface of the casing's base plate, with its inlet end connected to the bottom end of the vertical main pipe. A negative pressure air pump is positioned around the exhaust pipe, with its outlet end connected to an outlet pipe extending into the exhaust pipe, the outlet end of which faces the exhaust pipe's outlet. A negative pressure inlet connecting pipe is connected to the upper side plate of the upper connecting pipe of the core rod. An ignition nozzle and a fuel nozzle are fixed to the top surface of the top plate of the upper connecting pipe of the core rod. This device is small in size and compact in structure, allowing for internal ignition of the core rod and enabling combustion using either liquid or gaseous fuels, thus having a wide range of applications.

Description

Technical fields:

[0001] This invention relates to the field of environmentally friendly thermal processing equipment, and more specifically to a high-efficiency high-temperature liquid-gas universal combustion heat core device. Background technology:

[0002] In existing drying equipment, heat preservation equipment, or various heating processes, it is necessary to heat the internal cavity of the equipment. Existing processing equipment generally uses heating devices composed of electric heating wires. The heating of electric heating wires can typically reach several hundred degrees Celsius, and the maximum melting point of the resistance wire is only 1450 degrees Celsius. When it is necessary to reach temperatures above 1,000 degrees Celsius, the diameter of the electric heating wires needs to be greatly increased, which greatly increases the cost. Moreover, the power consumption is also enormous, resulting in huge costs.

[0003] Existing carbon fiber carbonization requires a carbonization temperature of 1800℃, which cannot be achieved by electric heating wires. Some industrial kilns use gas-fired radiant tubes that can reach a temperature of 1800℃. However, such equipment is large in size, and to prevent explosions, it is generally ignited outside the equipment first, and then a robotic arm is used to extend the fire into the fuel radiant tube for combustion. The thermal energy utilization rate of the fuel is not high, and a lot of heat is lost.

[0004] Meanwhile, existing equipment is generally only suitable for one form or specification of fuel. For example, some are only suitable for gaseous fuels, some are only suitable for liquid fuels, and some are only suitable for ethanol or natural gas. The range of applicable fuels is small, and the effect is not ideal. Summary of the Invention:

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a high-efficiency, high-temperature, universal liquid-gas combustion core device. It is small in size and compact in structure. Its core rod can be ignited internally and can be used for combustion with liquid or gaseous fuels. It has a wide range of applications and can also use hydrogen as fuel. It has high thermal energy utilization and can reach a maximum temperature of 1800°C when using hydrogen as fuel.

[0006] The solution of the present invention to the aforementioned technical problem is:

[0007] A high-efficiency high-temperature liquid-gas universal combustion heat core device includes a heat core rod, a gas cylinder, a fuel tank, a negative pressure air pump, and an air pump. The heat core rod is fixed in an outer shell, and the vertical main body of the heat core rod extends into the outer shell. An exhaust pipe is provided on the bottom surface of the bottom plate of the outer shell. The air inlet end of the exhaust pipe is connected to the bottom end of the vertical main body. A negative pressure air pump is provided around the exhaust pipe. The air outlet end of the negative pressure air pump is connected to an air outlet pipe, which extends into the exhaust pipe. The air outlet end of the air outlet pipe faces the air outlet of the exhaust pipe.

[0008] A negative pressure air inlet connection pipe is connected to the upper part of the side plate of the upper connecting tube of the hot core rod;

[0009] An ignition nozzle and a fuel nozzle are fixed on the top surface of the top plate of the upper connecting pipe of the hot core rod. The liquid outlet of the fuel tank is connected to the liquid inlet of the fuel pump. The liquid outlet of the fuel pump is connected to the liquid inlet of the first connecting pipe. The liquid outlet of the first connecting pipe is connected to the liquid inlet of the return pipe and the liquid inlet of the liquid inlet pipe through a three-way connector. The liquid outlet of the return pipe is connected to the liquid return port of the fuel tank. The liquid outlet of the liquid inlet pipe is connected to two branch connecting pipes through a three-way connector. The liquid outlets of the two branch connecting pipes are respectively connected to the ignition nozzle and the fuel nozzle.

[0010] The top end of the upper air inlet pipe of the hot core rod is connected to the air outlet of the air pump through a connecting pipe. The air outlet of the gas cylinder is connected to the air inlet of the pressure reducing valve through a connecting pipe. The air outlet of the pressure reducing valve is connected to the air inlet of the electric jet nozzle through a connecting pipe. The air outlet of the electric jet nozzle is connected to the gas inlet pipe connected to the upper connecting pipe body.

[0011] The exhaust pipe includes a U-shaped connecting pipe section and an exhaust vertical pipe section. The bottom end of the exhaust vertical pipe section is screwed to the exhaust end of the U-shaped connecting pipe section, and the air inlet of the U-shaped connecting pipe section is connected to the bottom end of the vertical pipe body.

[0012] A three-way catalytic converter is installed in the middle of the vertical exhaust pipe, and the three-way catalytic converter is located below the exhaust pipe.

[0013] A check valve is connected to the middle of the return pipe.

[0014] The hot core rod includes a vertical main body, the top of which is connected to an upper connecting pipe. A central through hole is formed in the middle of the top plate of the upper connecting pipe. An upper air inlet pipe is inserted into the central through hole. The bottom of the upper air inlet pipe extends into the upper connecting pipe and is connected to a main air vent pipe. The main air vent pipe is located in the vertical main body. Multiple air outlet holes are formed on the outer wall of the main air vent pipe.

[0015] Multiple fins are installed on the outer wall of the main air vent.

[0016] A through hole is formed on the top plate of the upper connecting pipe body. The gas intake pipe is inserted into the through hole, and the bottom end of the gas intake pipe extends into the upper connecting pipe body. A high-pressure ignition head is installed on the outer wall of the upper connecting pipe body. The ignition end of the high-pressure ignition head extends into the upper connecting pipe body. The ignition end of the high-pressure ignition head is located below and close to the bottom end of the gas intake pipe.

[0017] A cooling water tank is installed on the outer wall of the middle part of the upper connecting pipe. An inlet pipe is connected to one side of the outer wall of the cooling water tank, and an outlet pipe is connected to the other side of the outer wall of the cooling water tank. Both the inlet pipe and the outlet pipe are connected to the cooling water tank.

[0018] The cooling water tank is an annular shell. The top plate and bottom plate of the cooling water tank are both formed with a central through hole. The upper connecting pipe is inserted into the central through hole of the top plate and bottom plate of the cooling water tank. The inner side wall of the central through hole of the bottom plate of the cooling water tank is fixed to the outer side wall of the upper connecting pipe.

[0019] The upper connecting pipe body has multiple annular heat sinks and multiple annular spacers on its outer side wall. All annular heat sinks and spacers are spaced apart and press against each other. The bottom surface of the lowest annular spacer presses against the bottom surface of the cooling water tank's base plate. An upper annular cover is inserted into the central through-hole of the cooling water tank's top plate, and the bottom surface of the upper annular cover presses against the top surface of the highest annular spacer. The inner sidewalls of the annular heat sinks and spacers are tightly attached to the outer sidewall of the upper connecting pipe body. Multiple vertical liquid guiding holes are formed on the annular heat sinks.

[0020] The bottom end of the upper air intake pipe is formed with a threaded part, and the top of the main air vent pipe is threaded onto the threaded part. Multiple axially extending slots are formed on the side wall of the main air vent pipe. All slots are evenly distributed on the side wall of the main air vent pipe with the central axis of the main air vent pipe as the center. The cross-section of the slot is trapezoidal, and the width of its outer end is smaller than the width of its inner end. The inner end of the fin is formed with a trapezoidal block, which is inserted into the slot and mates with the slot. All trapezoidal blocks in the same slot press against each other. The top surface of the top trapezoidal block presses against the bottom end face of the upper air intake pipe. The bottom end of the slot extends out of the bottom surface of the side wall of the main air vent pipe. A downwardly extending threaded sleeve is formed on the inner side of the bottom surface of the main air vent pipe. The bottom end cap is threaded onto the threaded sleeve and covers the bottom surface of the threaded sleeve. The top surface of the bottom end cap presses against the bottom surface of the bottom trapezoidal block.

[0021] The nozzle of the ignition nozzle extends into the upper connecting pipe and is close to the ignition end of one of the high-pressure ignition heads.

[0022] The injection port of the fuel nozzle extends into the upper connecting pipe and is screwed with a fuel vaporization ceramic tube.

[0023] The fuel vaporization ceramic tube includes two vertical tubes and a lower U-shaped tube. The two vertical tubes are located on both sides of the main air vent. The bottom ends of the two vertical tubes are connected to the two ends of the lower U-shaped tube. The top end of one of the vertical tubes is screwed onto the injection port of the fuel nozzle. The top end of the other vertical tube is connected to an annular tube. The top of the main air vent is inserted into the annular tube. Multiple fuel injection holes are formed on the bottom side wall of the annular tube, and the fuel injection holes are connected to the annular tube.

[0024] The bottom ends of the two vertical tubes are inserted into the two end openings of the lower U-shaped tube. The outer wall of the bottom end of the vertical tube is bonded and fixed to the inner wall of the end opening of the lower U-shaped tube by ultra-high temperature ceramic adhesive. The top end of one of the vertical tubes is inserted into the insertion hole formed on the bottom surface of the middle of the ring-shaped tube and bonded and fixed by ultra-high temperature ceramic adhesive.

[0025] The outstanding effects of this invention are:

[0026] 1. It is small in size and compact in structure. Its heating core rod can be ignited internally and can be used for combustion with liquid or gaseous fuels. It has a wide range of applications and can also use hydrogen as fuel. It has high thermal energy utilization rate and can reach a maximum temperature of 1800℃ when using hydrogen as fuel.

[0027] 2. Its fins can ensure that the fuel burns evenly and completely around the main air vent, ensuring fuel efficiency and high thermal energy utilization.

[0028] 3. Its negative pressure air pump enables air to circulate in the hot core rod, thus facilitating internal ignition and virtually eliminating the risk of explosion.

[0029] 4. Its three-way catalytic converter can further treat the exhaust gas. Attached image description:

[0030] Figure 1 This is a partial schematic diagram of the principle of the present invention using liquid fuel (parts related to gaseous fuel are not shown);

[0031] Figure 2 yes Figure 1 A magnified view of a portion of the image;

[0032] Figure 3 This is a partial schematic diagram of the principle of the invention using gaseous fuel (components related to liquid fuel are not shown);

[0033] Figure 4 This is a partial structural schematic diagram of the partially cut-out state of the hot core rod of the present invention;

[0034] Figure 5 yes Figure 4 A schematic diagram of the local structure from a different angle;

[0035] Figure 6 This is a partial cross-sectional view of the outer shell of the hot core rod;

[0036] Figure 7 This is a partial structural diagram of the relationship between some of the fins and the main air vent of the present invention;

[0037] Figure 8 This is a partial cross-sectional view of the area between the fins and the main air vent. Detailed implementation method:

[0038] For example, see below. Figures 1 to 8 As shown, a high-efficiency high-temperature liquid-gas universal combustion heat core device includes a heat core rod 1000, a gas cylinder 40, a fuel tank 50, a negative pressure air pump 300, and an air pump 60. The gas cylinder 40, fuel tank 50, negative pressure air pump 300, and air pump 60 are mounted on a frame (the frame is not shown in the attached figure). A control cabinet (not shown in the attached figure) can be mounted on one side of the frame or on the frame. The control host 2000 is mounted in the control cabinet. The negative pressure air pump 300 and air pump 60 are all electrically connected to the control host 2000 via electrical connection lines.

[0039] The heating core rod 1000 is fixed in the outer casing 100 (in the attached drawings, the outer casing 100 is set as a frame-shaped body, and only a single heating core rod 1000 is installed. In the finished product, the outer casing 100 is an elongated closed shell on which multiple heating core rods 1000 are installed). The vertical main tube 10 of the heating core rod 100 extends into the outer casing 100. The bottom surface of the bottom plate of the outer casing 100 is provided with an exhaust pipe 200. The air inlet end of the exhaust pipe 200 is connected to the vertical main tube 10. The bottom end is connected, and a negative pressure air pump 300 is provided around the exhaust pipe 200. The outlet end of the negative pressure air pump 300 is connected to an outlet pipe 301. The outlet pipe 301 extends into the exhaust pipe 200. The outer wall of the outlet pipe 301 is bonded and fixed to the inner wall of the through hole extending into the side plate of the exhaust pipe 200 by a high temperature resistant adhesive to achieve a seal, or it is fixed by welding. The outlet end of the outlet pipe 301 faces the outlet of the exhaust pipe 200. The exhaust pipe 200 is made of ceramic material.

[0040] The upper part of the upper connecting pipe body 20 of the heating core rod 1000 is connected to a negative pressure air inlet connecting pipe 1; the air inlet end of the negative pressure air inlet connecting pipe 1 is connected to a one-way valve to prevent the gas of the heating core rod 1000 from flowing out of the negative pressure air inlet connecting pipe 1 and to prevent backflow.

[0041] An ignition nozzle 28 and a fuel nozzle 29 are fixed on the top surface of the top plate of the upper connecting pipe body 20 of the hot core rod 1000. The liquid outlet of the fuel tank 50 is connected to the liquid inlet of the fuel pump 51. The liquid outlet of the fuel pump 51 is connected to the liquid inlet of the first connecting pipe 52. The liquid outlet of the first connecting pipe 52 is connected to the liquid inlet of the return pipe 53 and the liquid inlet of the inlet pipe 54 through a three-way connector. The liquid outlet of the return pipe 53 is connected to the liquid return port of the fuel tank 50. The liquid outlet of the inlet pipe 54 is connected to two branch connecting pipes 55 through a three-way connector. The liquid outlets of the two branch connecting pipes 55 are respectively connected to the ignition nozzle 28 and the fuel nozzle 29. The fuel pump 51, the ignition nozzle 28 and the fuel nozzle 29 are all electrically connected to a pulse width controller 3000 through an electrical connection line. This pulse width controller 3000 is fixed in the control cabinet and electrically connected to the control host 2000 through an electrical connection line.

[0042] The top end of the upper air inlet pipe 21 of the heating core rod 1000 is connected to the air outlet of the air pump 60 via a connecting pipe. The air outlet of the gas cylinder switch of the gas cylinder 40 is connected to the air inlet of the pressure reducing valve 70 via a connecting pipe. The air outlet of the pressure reducing valve 70 is connected to the air inlet of the electric jet nozzle 80 via a connecting pipe. The air outlet of the electric jet nozzle 80 is connected to the gas inlet pipe 27 connected to the upper connecting pipe body 20. The electric jet nozzle 80 is electrically connected to another pulse width controller 3000 via an electrical connection line. This pulse width controller 3000 is fixed in the control cabinet and is also electrically connected to the control host 2000 via an electrical connection line.

[0043] Furthermore, the exhaust pipe 200 includes a U-shaped connecting pipe section 201 and an exhaust vertical pipe section 202. The bottom end of the exhaust vertical pipe section 202 is screwed to the exhaust end of the U-shaped connecting pipe section 201. The screwed parts of the two are bonded and fixed by a high-temperature resistant adhesive to achieve a seal. The air inlet of the U-shaped connecting pipe section 201 is connected to the bottom end of the vertical main pipe body 10. The air inlet of the U-shaped connecting pipe section 201 can be fixed on the bottom surface of the bottom plate of the outer shell 100 or directly connected to the bottom end of the vertical main pipe body 10.

[0044] A three-way catalytic converter block 203 is installed in the middle of the exhaust vertical pipe section 202, and the three-way catalytic converter block 203 is located below the exhaust pipe 301. The outer wall of the three-way catalytic converter block 203 is fitted onto the inner wall of the middle section of the exhaust vertical pipe section 202. The surface of the three-way catalytic converter block 203 is a porous ceramic material block covered with a layer of precious metals such as platinum, rhodium, and palladium, as well as rare earth coatings. It is a conventional component and will not be described in detail here.

[0045] Furthermore, a check valve 56 is connected to the middle of the return pipe 53. The function of the check valve 56 is that when the fuel pump 51 is running, it delivers fuel to the ignition nozzle 28 and the fuel nozzle 29. When it delivers too much fuel, it can flow back into the fuel tank 50 through the return pipe 53. The check valve 56 can prevent fuel in the fuel tank 50 from flowing out of the return pipe 53.

[0046] The heating core 1000 includes a vertical main body 10 and an upper connecting pipe 20. The top of the vertical main body 10 is connected to the upper connecting pipe 20. A central through hole is formed in the middle of the top plate of the upper connecting pipe 20. An upper air inlet pipe 21 is inserted into the central through hole. The outer side wall of the upper air inlet pipe 21 is welded and fixed to the inner side wall of the central through hole or bonded and fixed to the inner side wall of the central through hole by a high-temperature resistant adhesive. The bottom of the upper air inlet pipe 21 extends into the upper connecting pipe 20 and is connected to a main air vent pipe 11. The main air vent pipe 11 is located in the vertical main body 10. Multiple air outlet holes 111 are formed on the outer side wall of the main air vent pipe 11.

[0047] Multiple fins 12 are installed on the outer wall of the main air vent 11;

[0048] The top plate of the upper connecting pipe body 20 has a through hole, into which the gas intake pipe 27 is inserted. The bottom end of the gas intake pipe 27 extends into the upper connecting pipe body 20. A high-pressure ignition head 22 is fixed on the outer wall of the upper connecting pipe body 20. The ignition end of the high-pressure ignition head 22 extends into the upper connecting pipe body 20, and is located below and close to the bottom end of the gas intake pipe 27. The high-pressure ignition head 22 is connected to a high-pressure ignition coil 90 via an electrical connection wire. The high-pressure ignition coil 90 is electrically connected to the control host 2000 via an electrical connection wire. The high-pressure ignition coil 90 is installed in the control cabinet.

[0049] Furthermore, a cooling water tank 23 is fixed on the outer wall of the middle part of the upper connecting pipe 20. A water inlet pipe 231 is connected to one side of the outer wall of the cooling water tank 23, and a water outlet pipe 232 is connected to the other side of the outer wall of the cooling water tank 23. Both the water inlet pipe 231 and the water outlet pipe 232 are connected to the cooling water tank 23.

[0050] Furthermore, the cooling water tank 23 is an annular shell, with a central through hole formed in the middle of both the top and bottom plates of the cooling water tank 23. The upper connecting pipe 20 is inserted into the central through hole of the top and bottom plates of the cooling water tank 23. The inner side wall of the central through hole of the bottom plate of the cooling water tank 23 is fixed to the outer side wall of the upper connecting pipe 20. It can be fixed by welding or by bonding with a high-temperature resistant adhesive to achieve a seal.

[0051] The upper connecting pipe 20 has multiple annular heat sinks 24 and multiple annular spacers 25 on its middle outer side wall. All annular heat sinks 24 and annular spacers 25 are spaced apart and pressed against each other. The bottom surface of the bottommost annular spacer 25 presses against the bottom surface of the bottom plate of the cooling water tank 23. An upper annular cover 26 is inserted into the central through hole of the top plate of the cooling water tank 23. The outer side wall of the upper annular cover 26 is bonded and fixed to the inner side wall of the central through hole of the top plate of the cooling water tank 23 by high-temperature resistant adhesive, achieving fixation and sealing. The bottom end face of the upper annular cover 26 presses against the top surface of the topmost annular spacer 25. The inner side walls of the annular heat sinks 24 and annular spacers 25 are in close contact with the outer side wall of the upper connecting pipe 20. Multiple vertical liquid guiding holes are formed on the annular heat sinks 24.

[0052] Furthermore, the outer wall of the top plate of the upper annular cover 26 is formed with a radially extending edge, and the bottom surface of the radially extending edge presses against the top surface of the top plate of the cooling water tank 23.

[0053] The high-voltage ignition head 22 is located above the cooling water tank 23.

[0054] Furthermore, the bottom end of the upper connecting pipe 20 is screwed into the top of the vertical main pipe 10 and fixed by bonding with a high-temperature resistant adhesive;

[0055] The upper connecting pipe 20 and the upper air inlet pipe 21 are both stainless steel pipes, the vertical main pipe 10 and the main air vent pipe 11 are ceramic pipes, and the fins 12 are ceramic plates.

[0056] Furthermore, the top plate of the upper connecting pipe body 20 has two through holes formed opposite to each other, either left and right or front and back. Two gas intake pipes 27 are inserted into the through holes. Two high-pressure ignition heads 22 are fixed on the outer side wall of the upper connecting pipe body 20. The top ends of the two gas intake pipes 27 extend out of the top surface of the top plate of the upper connecting pipe body 20 and are connected to both ends of the arc-shaped pipe body 271. An intake extension pipe 272 is connected to the middle side wall of the arc-shaped pipe body 271. The intake extension pipe 272 is connected to the outlet of the electric jet nozzle 80 through a connecting pipe.

[0057] Furthermore, the bottom end of the upper air intake pipe 21 is formed with a threaded portion, and the top of the main air vent pipe 11 is threaded onto the threaded portion. Multiple axially extending slots 112 are formed on the side wall of the main air vent pipe 11. All slots 112 are evenly distributed on the side wall of the main air vent pipe 11 with the central axis of the main air vent pipe 11 as the center. The cross-section of the slot 112 is trapezoidal, with the width of its outer end being smaller than the width of its inner end. A trapezoidal block 121 is formed at the inner end of the fin 12, and the trapezoidal block 121 is inserted into the slot 112 and connected to the slot 112. The 12 trapezoidal blocks 121 in the same slot 112 are in contact with each other, with the top surface of the top trapezoidal block 121 pressing against the bottom surface of the upper air intake pipe 21. The bottom end of the slot 112 extends out of the side wall of the main air vent pipe 11. A downwardly extending threaded sleeve portion 113 is formed on the inner side of the bottom surface of the main air vent pipe 11. The bottom end cap 13 is screwed onto the threaded sleeve portion 113, covering the bottom surface of the threaded sleeve portion 113. The top surface of the bottom end cap 13 presses against the bottom surface of the bottom trapezoidal block 121. The bottom end cap 13 is a ceramic end cap.

[0058] Furthermore, the side wall of the main air vent pipe 11 between two adjacent slots 112 is formed with a plurality of vertically arranged air outlet holes 111, which are connected to the main air vent pipe 11.

[0059] The fin 12 is fan-shaped, and its outer wall has an inwardly extending central slot formed in the middle. In each pair of adjacent fins 12 in the same slot 112, one fin extends to the left and the other extends to the right. All fins 12 are arranged in this way, that is, the upper fin extends to the left, the lower fin extends to the right, and the next lower fin extends to the left, and so on.

[0060] All fins 12 at the same horizontal position extend in the same direction.

[0061] The nozzle of the ignition nozzle 28 extends into the upper connecting pipe 20, and the nozzle of the ignition nozzle 28 is close to the ignition end of one of the high-pressure ignition heads 22.

[0062] The injection port of the fuel nozzle 29 extends into the upper connecting pipe body 20 and is screwed to a fuel vaporization ceramic pipe 30.

[0063] The fuel vaporization ceramic tube 30 includes two vertical tubes 31 and a lower U-shaped tube 32. The two vertical tubes 31 are located on both sides of the main air vent 11. The bottom ends of the two vertical tubes 31 are connected to the two ends of the lower U-shaped tube 32. The top end of one vertical tube 31 is screwed onto the injection port of the fuel nozzle 29. The top end of the other vertical tube 31 is connected to an annular tube 33. The top of the main air vent 11 is inserted into the annular tube 33. Multiple fuel injection holes are formed on the bottom side wall of the annular tube 33. The fuel injection holes are connected to the annular tube 33.

[0064] The bottom ends of the two vertical tubes 31 are inserted into the two end openings of the lower U-shaped tube 32. The outer wall of the bottom end of the vertical tube 31 is bonded and fixed to the inner wall of the end opening of the lower U-shaped tube 32 using ultra-high temperature ceramic adhesive. The top end of one of the vertical tubes 31 is inserted into the insertion hole formed on the bottom surface of the middle of the annular tube 33 and bonded and fixed using ultra-high temperature ceramic adhesive. The ultra-high temperature ceramic adhesive is an inorganic ultra-high temperature ceramic adhesive with a high temperature resistance of up to 2200℃. Similarly, an inorganic ultra-high temperature ceramic adhesive with a high temperature resistance of up to 2200℃ can also be used as the high temperature adhesive.

[0065] External threads are formed on the top and bottom outer walls of the vertical main body 10, and are screwed into the connecting screw holes of the top and bottom plates of the outer shell 100. The connecting screw holes and the external threads of the vertical main body 10 are bonded and fixed with high-temperature resistant adhesive to achieve a seal.

[0066] Multiple side-extending rotating plate portions 131 are formed or bonded to the outer wall of the bottom end cap 13.

[0067] In this embodiment, the outer casing 100 is a closed, elongated shell filled with nitrogen gas. A mounting sleeve 201 is formed on the outer wall below the cooling water tank 23 of the upper connecting pipe 20. A temperature sensor 202 is fixed in the mounting sleeve 201, with its sensing end close to or in close contact with the outer wall of the upper connecting pipe 20. The temperature sensor 202 is electrically connected to the control host 2000 via an electrical connection cable.

[0068] Negative pressure air pump 300 and air pump 60 are both electrically connected to negative pressure air pump controller 2 and air pump controller 3 via electrical connection lines. Negative pressure air pump controller 2 and air pump controller 3 are installed in the control cabinet and are electrically connected to the control host 2000 via electrical connection lines.

[0069] The working principle of this embodiment is as follows: Before starting, the negative pressure air pump 300 runs. Since the negative pressure air pump 300 runs at high speed, the exhaust port of its exhaust pipe faces the exhaust end of the exhaust pipe 200. At this time, a large amount of gas will be discharged from the exhaust end of the exhaust pipe 200, thus making the air inlet end of the exhaust pipe 200 negative pressure. This allows the air inlet end of the exhaust pipe 200 to be drawn in and discharged from the exhaust end of the exhaust pipe 200 along with the exhaust from the negative pressure air pump 300. The principle is the same as that of the Venturi tube. The principle of the Venturi effect is that when the wind blows over an obstruction, the air pressure near the upper port on the leeward side of the obstruction is relatively low, thereby generating an adsorption effect and causing airflow. This will not be described in detail here.

[0070] In this way, the gas in the vertical main pipe 10 is discharged to the exhaust pipe 200, allowing outside air to enter the upper connecting pipe 20 from the negative pressure intake connecting pipe 1, then enter the vertical main pipe 10, and finally be discharged from the exhaust pipe 200. This ensures that the upper connecting pipe 20 and the vertical main pipe 10 are filled with air, guaranteeing that the internal air is the same as the external air. This ensures that the fuel can be properly ignited without exploding.

[0071] Generally, after the negative pressure air pump 300 runs for 3 to 5 seconds, the two high-pressure igniters 22 ignite. 3 to 5 seconds after ignition, the pulse width controller 3000 controls the jet volume of the electric jet nozzle 80, causing the gaseous fuel to enter the intake extension pipe 272, and then through the arc-shaped pipe body 271 into the two gas intake pipes 27, finally entering the upper connecting pipe body 20. Combustion is then achieved by passing through the ignition end of the high-pressure igniter 22. Generally, after about 10 seconds of combustion, the temperature of the upper connecting pipe body 20 will continuously rise, reaching approximately 300°C. At this point, the sensing end of the temperature sensor 202 will detect the temperature. When the external temperature reaches approximately 300°C, it will send the sensing signal to the control host 2000, which will then control... The main control unit 2000 controls the negative pressure air pump 300 to gradually stop operating, generally in about 20 seconds. At the same time, the main control unit 2000 controls the air pump 60 to operate, so that a large amount of high-pressure air is introduced into the upper air intake pipe 21, and the high-pressure igniter 22 stops igniting. The high-pressure air in the upper air intake pipe 21 enters the main air vent pipe 11 and is discharged from all the air outlet holes 111. This allows the gaseous fuel to burn at the fins 12 around the main air vent pipe 11. The fins 12 accelerate the efficiency of heat conduction and heating, so that the temperature of the vertical main pipe body 10 continuously increases. The gaseous fuel feed rate can be controlled by the pulse width controller 3000, and the air pump 60 can control the air feed rate, thereby controlling the combustion temperature. The combustion gases are discharged from the exhaust pipe 200. When they pass through the three-way catalytic converter 203, they undergo secondary catalytic combustion, which further prevents the emission of harmful gases. The rear end of the exhaust pipe 200 is connected to other exhaust gas treatment equipment for detection and treatment to ensure that the emitted gases meet the requirements. This is a conventional structure and will not be described in detail here.

[0072] In this embodiment, various gaseous fuels can be used. When hydrogen is used as fuel, the temperature can reach approximately 1800°C. At this point, it is necessary to ensure that the oxygen content in the incoming air is above 30%. Oxygen and air can be mixed and pumped in through air pump 60. When other gaseous fuels are used, the temperature is generally above 1000°C. At this point, the temperature inside the outer casing 100 will be greatly increased. Objects requiring drying or heating can then enter the outer casing 100 for heat exchange, achieving drying operations. For carbon fiber, when its internal temperature reaches 1800°C, it can enter the outer casing 100 from one end for carbonization, and then exit from the other end. During carbonization, the internal air in the outer casing 100 needs to be extracted and replaced with nitrogen; there must be no oxygen inside.

[0073] When liquid fuel is added in this embodiment, its initial operation is the same as that of gaseous fuel. The negative pressure air pump 300 is run first, and the high-pressure igniter 22 is ignited. The ignition nozzle 28 and the fuel nozzle 29 are both connected to the fuel pump connected to the fuel tank through connecting pipes. The fuel injection volume is controlled by the corresponding pulse width controller 3000.

[0074] Then, fuel is first sprayed from the ignition nozzle 28 and ignited by the high-pressure igniter 22, achieving combustion. Generally, after about 10 seconds of combustion, the temperature of the upper connecting pipe 20 will continuously rise and reach about 300°C. At this time, the sensing end of the temperature sensor 202 will sense the temperature. When the external temperature sensed is about 300°C, it will send the sensing signal to the control host 2000. The control host 2000 will then control the negative pressure air pump 300 to gradually stop running, and high-pressure gas will be introduced into the upper air intake pipe 21. The high-pressure igniter 22 will be closed. At this time, fuel will be introduced into the fuel nozzle 29. This fuel flows along the liquid vaporization ceramic pipe 30. During the flow, it interacts with the liquid in the vertical main pipe 10. Gas heat exchange occurs because the temperature sensor 202 detects a temperature of 300°C on the outer wall of the upper connecting pipe 20, indicating that the internal temperature is already very high. At this time, when the liquid fuel flows in the liquid vaporization ceramic pipe 30, it exchanges heat with the gas in the vertical main pipe 10 and vaporizes. Finally, it is sprayed downwards from all the fuel injection holes on the bottom side wall of the annular pipe 33 until it reaches the main air vent pipe 11, where it mixes and burns with the air discharged from the air outlet 111 of the main air vent pipe 11. At this time, combustion will occur at the fins 12 around the main air vent pipe 11. The burned gas will be discharged from the exhaust pipe 200 to the subsequently connected exhaust gas treatment equipment or other equipment for treatment or reuse.

[0075] During combustion, coolant enters through the inlet pipe 231. In the cooling water tank 23, the coolant exchanges heat with the upper connecting pipe body 20 through the annular heat sink 24 and annular spacer 25, reducing the temperature of the upper connecting pipe body 20 and surrounding internal components to prevent damage from overheating. The cooled coolant is then discharged through the outlet pipe 232. Both the inlet pipe 231 and the outlet pipe 232 are connected to a liquid storage device via connecting pipes, enabling cyclical heat exchange. The liquid storage device is conventional and will not be described in detail here.

[0076] This embodiment is suitable for both gaseous and liquid fuels and has a wide range of applications. It can also be used as a gaseous fuel device by removing components such as the ignition nozzle 28 and the fuel nozzle 29, or by removing components such as the gas inlet pipe 27, and used as a liquid fuel device.

[0077] All ceramic materials used in this embodiment are high-temperature resistant industrial ceramic materials, with a temperature resistance of approximately 2600°C. All high-temperature resistant adhesives and ultra-high-temperature ceramic adhesives ensure a fixed connection and seal between the bonded components.

[0078] The above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also fall within the scope of the present invention, and the patent protection scope of the present invention should be defined by the claims.

Claims

1. A high-efficiency high-temperature liquid-gas universal combustion core device, comprising a core rod (1000), a gas cylinder (40), a fuel tank (50), a negative pressure air pump (300), and an air pump (60), characterized in that: The heating core rod (1000) is fixed in the outer shell (100). The vertical main body (10) of the heating core rod (1000) extends into the outer shell (100). The bottom surface of the bottom plate of the outer shell (100) is provided with an exhaust pipe (200). The air inlet end of the exhaust pipe (200) is connected to the bottom end of the vertical main body (10). A negative pressure air pump (300) is provided around the exhaust pipe (200). The air outlet end of the negative pressure air pump (300) is connected to an air outlet pipe (301). The air outlet pipe (301) extends into the exhaust pipe (200). The air outlet end of the air outlet pipe (301) faces the air outlet of the exhaust pipe (200). The upper part of the upper connecting pipe body (20) of the hot core rod (1000) is connected to a negative pressure air inlet connecting pipe (1). An ignition nozzle (28) and a fuel nozzle (29) are fixed on the top surface of the top plate of the upper connecting pipe body (20) of the hot core rod (1000). The liquid outlet of the fuel tank (50) is connected to the liquid inlet of the fuel pump (51). The liquid outlet of the fuel pump (51) is connected to the liquid inlet of the first connecting pipe (52). The liquid outlet of the first connecting pipe (52) is connected to the liquid inlet of the return pipe (53) and the liquid inlet of the inlet pipe (54) through a three-way connector. The liquid outlet of the return pipe (53) is connected to the liquid return port of the fuel tank (50). The liquid outlet of the inlet pipe (54) is connected to two branch connecting pipes (55) through a three-way connector. The liquid outlets of the two branch connecting pipes (55) are respectively connected to the ignition nozzle (28) and the fuel nozzle (29). The top end of the upper air inlet pipe (21) of the hot core rod (1000) is connected to the air outlet of the air pump (60) through a connecting pipe. The air outlet of the gas cylinder (40) is connected to the air inlet of the pressure reducing valve (70) through a connecting pipe. The air outlet of the pressure reducing valve (70) is connected to the air inlet of the electric jet nozzle (80) through a connecting pipe. The air outlet of the electric jet nozzle (80) is connected to the gas inlet pipe (27) connected to the upper connecting pipe body (20). The heating core rod (1000) includes a vertical main body (10), the top of which is connected to an upper connecting pipe (20). A central through hole is formed in the middle of the top plate of the upper connecting pipe (20). An upper air inlet pipe (21) is inserted into the central through hole. The bottom of the upper air inlet pipe (21) extends into the upper connecting pipe (20) and is connected to a main air vent pipe (11). The main air vent pipe (11) is located in the vertical main body (10). Multiple air outlet holes (111) are formed on the outer side wall of the main air vent pipe (11). Multiple fins (12) are installed on the outer wall of the main air vent (11). The top plate of the upper connecting pipe (20) has a through hole formed therein. The gas inlet pipe (27) is inserted into the through hole. The bottom end of the gas inlet pipe (27) extends into the upper connecting pipe (20). A high-pressure ignition head (22) is installed on the outer wall of the upper connecting pipe (20). The ignition end of the high-pressure ignition head (22) extends into the upper connecting pipe (20). The ignition end of the high-pressure ignition head (22) is located below and close to the bottom end of the gas inlet pipe (27). The nozzle of the ignition nozzle (28) extends into the upper connecting pipe (20), and the nozzle of the ignition nozzle (28) is close to the ignition end of one of the high-pressure ignition heads (22). The injection port of the fuel nozzle (29) extends into the upper connecting pipe body (20) and is screwed with a fuel vaporization ceramic pipe (30). The fuel vaporization ceramic tube (30) includes two vertical tubes (31) and a lower U-shaped tube (32). The two vertical tubes (31) are located on both sides of the main air vent (11). The bottom ends of the two vertical tubes (31) are connected to the two ends of the lower U-shaped tube (32). The top end of one of the vertical tubes (31) is screwed onto the injection port of the fuel nozzle (29). The top end of the other vertical tube (31) is connected to an annular tube (33). The top of the main air vent (11) is inserted into the annular tube (33). Multiple fuel injection holes are formed on the bottom side wall of the annular tube (33). The fuel injection holes are connected to the annular tube (33). The bottom ends of the two vertical tubes (31) are inserted into the two end openings of the lower U-shaped tube (32). The outer side wall of the bottom end of the vertical tube (31) and the inner side wall of the end opening of the lower U-shaped tube (32) are bonded and fixed together by ultra-high temperature ceramic adhesive. The top end of one of the vertical tubes (31) is inserted into the insertion hole formed on the bottom surface of the middle of the ring-shaped tube (33) and bonded and fixed together by ultra-high temperature ceramic adhesive.

2. The high-efficiency high-temperature liquid-gas universal combustion heat core device according to claim 1, characterized in that: The exhaust pipe (200) includes a U-shaped connecting pipe section (201) and an exhaust vertical pipe section (202). The bottom end of the exhaust vertical pipe section (202) is screwed to the exhaust end of the U-shaped connecting pipe section (201), and the air inlet of the U-shaped connecting pipe section (201) is connected to the bottom end of the vertical pipe body (10). A three-way catalytic converter (203) is installed in the middle of the exhaust vertical pipe section (202), and the three-way catalytic converter (203) is located below the exhaust pipe (301).

3. The high-efficiency high-temperature liquid-gas universal combustion heat core device according to claim 1, characterized in that: A check valve (56) is connected to the middle of the return pipe (53).

4. The high-efficiency high-temperature liquid-gas universal combustion heat core device according to claim 1, characterized in that: A cooling water tank (23) is installed on the outer wall of the middle part of the upper connecting pipe (20). A water inlet pipe (231) is connected to one side of the outer wall of the cooling water tank (23), and a water outlet pipe (232) is connected to the other side of the outer wall of the cooling water tank (23). Both the water inlet pipe (231) and the water outlet pipe (232) are connected to the cooling water tank (23).

5. The high-efficiency high-temperature liquid-gas universal combustion heat core device according to claim 4, characterized in that: The cooling water tank (23) is an annular shell. The top plate and bottom plate of the cooling water tank (23) are both formed with central through holes. The upper connecting pipe (20) is inserted into the central through holes of the top plate and bottom plate of the cooling water tank (23). The inner side wall of the central through hole of the bottom plate of the cooling water tank (23) is fixed to the outer side wall of the upper connecting pipe (20). The upper connecting pipe (20) has multiple annular heat sinks (24) and multiple annular spacers (25) on its middle outer side wall. All the annular heat sinks (24) and annular spacers (25) are spaced apart and pressed against each other. The bottom surface of the bottommost annular spacer (25) is pressed against the bottom surface of the bottom plate of the cooling water tank (23). An upper annular cover (26) is inserted in the central through hole of the top plate of the cooling water tank (23). The bottom end of the upper annular cover (26) is pressed against the top surface of the topmost annular spacer (25). The inner side walls of the annular heat sinks (24) and annular spacers (25) are tightly attached to the outer side wall of the upper connecting pipe (20). Multiple vertical liquid guiding holes are formed on the annular heat sinks (24).

6. The high-efficiency high-temperature liquid-gas universal combustion heat core device according to claim 1, characterized in that: The bottom end of the upper air intake pipe (21) is formed with a threaded part, and the top of the main air vent pipe (11) is threaded onto the threaded part. Multiple axially extending slots (112) are formed on the side wall of the main air vent pipe (11). All slots (112) are evenly distributed on the side wall of the main air vent pipe (11) with the central axis of the main air vent pipe (11) as the center. The cross-section of the slot (112) is trapezoidal, and the width of its outer end is smaller than the width of its inner end. The inner end of the fin (12) is formed with a trapezoidal block (121), which is inserted into the slot (112) and matches the slot (112). All trapezoidal blocks (121) in the same slot (112) press against each other, with the top surface of the top trapezoidal block (121) pressing against the bottom surface of the upper air intake pipe (21). The bottom end of the slot (112) extends out of the bottom surface of the side wall of the main air vent pipe (11). A downwardly extending threaded sleeve (113) is formed on the inner side of the bottom surface of the main air vent pipe (11). The bottom end cap (13) is screwed onto the threaded sleeve (113), and the bottom end cap (13) covers the bottom surface of the threaded sleeve (113). The top surface of the bottom end cap (13) presses against the bottom surface of the bottom trapezoidal block (121).

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