CN118049892A - Electric heating excitation tube and phase-change electric excitation device - Google Patents
Electric heating excitation tube and phase-change electric excitation device Download PDFInfo
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- CN118049892A CN118049892A CN202410321671.1A CN202410321671A CN118049892A CN 118049892 A CN118049892 A CN 118049892A CN 202410321671 A CN202410321671 A CN 202410321671A CN 118049892 A CN118049892 A CN 118049892A
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- 230000005284 excitation Effects 0.000 title claims abstract description 83
- 238000005485 electric heating Methods 0.000 title claims abstract description 74
- 239000007791 liquid phase Substances 0.000 claims abstract description 79
- 238000010438 heat treatment Methods 0.000 claims abstract description 59
- 239000012071 phase Substances 0.000 claims abstract description 54
- 230000008859 change Effects 0.000 claims abstract description 32
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 35
- 239000000919 ceramic Substances 0.000 claims description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 14
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 88
- 229910002092 carbon dioxide Inorganic materials 0.000 description 44
- 239000001569 carbon dioxide Substances 0.000 description 44
- 239000007789 gas Substances 0.000 description 34
- 239000003795 chemical substances by application Substances 0.000 description 14
- 239000007788 liquid Substances 0.000 description 14
- 238000007789 sealing Methods 0.000 description 13
- 230000000694 effects Effects 0.000 description 12
- 238000002347 injection Methods 0.000 description 10
- 239000007924 injection Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 239000000126 substance Substances 0.000 description 10
- 239000000110 cooling liquid Substances 0.000 description 9
- 238000001816 cooling Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 238000005266 casting Methods 0.000 description 4
- 238000005422 blasting Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007792 gaseous phase Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010892 electric spark Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910001080 W alloy Inorganic materials 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention relates to the technical field of electric fuses, in particular to an electric heating excitation tube and a phase-change electric excitation device. An electric heating excitation tube comprises a tube body, wherein the inner cavity of the tube body is used for containing liquid phase objects, a liquid phase inlet is formed in the tube body, a gas phase outlet is formed in one end of the tube body, and an electric heating element is arranged in the inner cavity of the tube body and used for directly heating the liquid phase objects. Because the electric heating element can directly heat the liquid phase material to cause the liquid phase material to change phase, after the liquid phase material is subjected to phase change, the gas gun is launched, only new liquid phase material is needed to be added for electric heating to carry out next phase change, the launching efficiency is improved, and the operation is more convenient.
Description
Technical Field
The invention relates to the technical field of electric fuses, in particular to an electric heating excitation tube and a phase-change electric excitation device.
Background
When the temperature of the carbon dioxide is 304.2K and the pressure is above 7.38MPa, the boundary line between the gas phase and the liquid phase of the carbon dioxide disappears, the carbon dioxide enters a supercritical state, and the carbon dioxide in the supercritical state has the characteristics of high permeability, low fluid viscosity, high density and strong dissolving capacity, can rapidly generate high pressure and is not easy to burn under the constant volume condition, and has wide application prospect in the field of gas cannons due to the excellent property.
The carbon dioxide excitation tube used in the existing gas cannon adopts chemical heating agent to heat the liquid carbon dioxide. The heating agent is stored in the heating pipe, the heating pipe and the carbon dioxide are both stored in the excitation pipe, and when the heating pipe is used, the heating agent is ignited by adopting an electric spark, and the carbon dioxide absorbs heat to enter a supercritical state.
The utility model patent publication number CN219064311U discloses a carbon dioxide blasting excitation tube, which comprises a liquid storage tube and an excitation tube, wherein the inner side wall of one end of the liquid storage tube is inserted with a rupture disk, the excitation tube consists of a heater, a tube head and an inflation valve, and the tube head is inserted at the other end of the liquid storage tube. When the explosion is needed, the heater is electrified, when micro-current passes through the heater formed by the high heat conduction rods, a high-temperature breakdown safety film is generated, liquid carbon dioxide is gasified instantly, and the micro-current is used for adding hydrogen mixture or magnesium powder and the like to perform ignition to generate high-temperature high-pressure gas. The chemical heating agent used in the heating mode needs to be refilled after each use, the rupture disk also needs to be replaced continuously, the use efficiency is low, the continuous emission speed is low, and the chemical heating agent has certain danger in the use process.
Disclosure of Invention
The invention aims to provide an electric heating excitation tube which is used for solving the problems that the chemical heating agent used in the heating mode of the existing carbon dioxide blasting excitation tube needs to be refilled after each use, the use efficiency is low, the continuous emission speed is low and a certain danger exists in the use process.
The electric heating excitation tube adopts the following technical scheme: an electric heating excitation tube comprises a tube body, wherein the inner cavity of the tube body is used for containing liquid phase objects, a liquid phase inlet is formed in the tube body, a gas phase outlet is formed in one end of the tube body, and an electric heating element is arranged in the inner cavity of the tube body and used for directly heating the liquid phase objects.
Further, the electrical heating element extends axially along the lumen of the tube body and from a first end of the lumen of the tube body to a second end of the lumen of the tube body or a location proximate to the second end such that the electrical heating element is capable of simultaneously heating a liquid phase of the lumen of the tube body in an axial direction.
Further, the end part of the pipe body is provided with an outlet end cover, the gas phase outlet is an air outlet hole arranged on the outlet end cover, and the electric heating elements are distributed around each air outlet hole.
Further, the electrical heating element comprises a titanium alloy rod body extending axially along the lumen of the tube body.
Further, both ends of the titanium alloy rod body are respectively fixed at both ends of the pipe body.
Further, the electric heating element also comprises a heat conducting piece arranged on the titanium alloy rod body.
Further, a plurality of annular grooves which are uniformly distributed along the length direction of the titanium alloy rod body are formed in the titanium alloy rod body, and the heat conducting piece is a copper ring which is molded in the annular grooves in a casting mode.
Further, the pipe body comprises a metal shell and a ceramic pipe body arranged in the metal shell, and the outlet end cover is a ceramic end cover arranged at the end part of the ceramic pipe body.
Further, a one-way valve is arranged at the liquid phase inlet.
The electric heating excitation tube improves the existing electric heating excitation tube, and has the beneficial effects that: the liquid phase material is injected into the inner cavity of the pipe body through the liquid phase inlet, and is directly heated through the electric heating element in the inner cavity of the pipe body, so that the liquid phase material is subjected to phase change and enters a supercritical state, and the electric heating element can directly heat the liquid phase material to be subjected to phase change, so that after the liquid phase material is subjected to phase change, the gas cannon is launched, only a new liquid phase material is required to be added for electric heating to carry out next phase change, no chemical heating agent is required to be replaced, the continuous launching efficiency is improved, the operation is more convenient, the working efficiency is improved, and the safe and reliable operation process is used.
The invention aims to provide a phase-change electric excitation device which is used for solving the problems that a gas phase outlet of an existing carbon dioxide blasting excitation tube is blasted by using a rupture disk, a new rupture disk is needed to be replaced after each time of emission is completed, and the continuous emission speed is low.
The electric heating excitation device adopts the following technical scheme: the utility model provides a phase transition electricity excitation device, including electric heating excitation tube and pressure difference control formula quick switch valve, electric heating excitation tube includes the body, the body inner chamber is used for holding the liquid phase thing, be equipped with the liquid phase entry on the body, the one end of body has the gaseous phase export, be provided with electric heating element in the body inner chamber and be used for directly heating the liquid phase thing, pressure difference control formula quick switch valve includes gas valve entry, muzzle and case, gas valve entry and electric heating excitation tube's gaseous phase export intercommunication, the case is used for stopping or dodging the muzzle under the pressure effect.
Further, the electrical heating element extends axially along the lumen of the tube body and from a first end of the lumen of the tube body to a second end of the lumen of the tube body or a location proximate to the second end such that the electrical heating element is capable of simultaneously heating a liquid phase of the lumen of the tube body in an axial direction.
Further, the end part of the pipe body is provided with an outlet end cover, the gas phase outlet is an air outlet hole arranged on the outlet end cover, and the electric heating elements are distributed around each air outlet hole.
Further, the electrical heating element comprises a titanium alloy rod body extending axially along the lumen of the tube body.
Further, both ends of the titanium alloy rod body are respectively fixed at both ends of the pipe body.
Further, the electric heating element also comprises a heat conducting piece arranged on the titanium alloy rod body.
Further, a plurality of annular grooves which are uniformly distributed along the length direction of the titanium alloy rod body are formed in the titanium alloy rod body, and the heat conducting piece is a copper ring which is molded in the annular grooves in a casting mode.
Further, the pipe body comprises a metal shell and a ceramic pipe body arranged in the metal shell, and the outlet end cover is a ceramic end cover arranged at the end part of the ceramic pipe body.
Further, a one-way valve is arranged at the liquid phase inlet.
The phase-change electric excitation device is a phase-change electric excitation device with brand new design, and has the beneficial effects that: the liquid phase is injected into the inner cavity of the pipe body through the liquid phase inlet, the liquid phase is directly heated through the electric heating element in the inner cavity of the pipe body, and the liquid phase can be directly heated to be subjected to phase change through the electric heating element, so that after the liquid phase is subjected to phase change, the gas cannon is subjected to electric heating by adding a new liquid phase to be subjected to next phase change after being launched, the phase change is performed to enter a supercritical state, a chemical heating agent is not required to be replaced, the gas phase outlet is controlled through the differential pressure control type quick switch valve, the gas phase outlet is automatically opened and closed according to the differential pressure, the rupture disk is not required to be replaced, the continuous launching efficiency is integrally improved, the operation is more convenient, the working efficiency is improved, and the use operation process is safe and reliable.
Drawings
FIG. 1 is a schematic diagram of a phase change electro-active device incorporating the present invention;
FIG. 2 is a schematic diagram of a phase change electro-active device according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of the electrically heated excitation tube of FIG. 2;
FIG. 4 is a cross-sectional view of the differential pressure control switch valve of FIG. 2 in a closed state;
FIG. 5 is a cross-sectional view of the differential pressure control switch valve of FIG. 2 in an open state;
FIG. 6 is a schematic view of the internal structure of the ceramic tube of FIG. 2;
Fig. 7 is a cross-sectional view of the heating rod of fig. 6.
In the figure: 1. an outlet end cap; 2. a heating rod; 3. a ceramic insulating layer; 4. a valve body; 5. a one-way valve; 6. a liquid phase inlet; 7. an air outlet hole; 8. a titanium alloy rod body; 9. a copper ring; 11. an excitation tube body; 12. exciting the filling assembly; 13. a plug; 14. a liquid-phase material inlet; 15. a cooling liquid injection port; 16. a front sealing plate; 17. an outer cylinder; 18. a seal ring; 19. a rear sealing plate; 20. a buffer spring; 21. a gas injection port; 22. a valve core; 23. a buffer rod; 24. an exhaust port; 25. taper head bolts; 26. an inlet valve; 27. a muzzle; 28. a gas valve inlet.
Detailed Description
The features and capabilities of the present invention are described in further detail below in connection with the examples.
First, the technical scheme of the present invention is generally described:
the carbon dioxide excitation tube is generally adopted in the gas gun, and the existing carbon dioxide excitation tube is mainly used for heating liquid carbon dioxide by a chemical heating agent. The heating agent is stored in the heating pipe, the heating pipe and the carbon dioxide are both stored in the excitation pipe, when the heating pipe is used, the electric spark is adopted to ignite the heating agent, and the carbon dioxide absorbs heat to enter a supercritical state, so that the rupture disk is broken through high-temperature and high-pressure carbon dioxide gas. However, the chemical heating agent used in the existing heating mode needs to be refilled after each use, the rupture disk also needs to be replaced continuously, the use efficiency is low, the continuous emission speed is low, and the chemical heating agent has a certain danger in the use process.
Therefore, the invention designs a phase-change electric excitation device, which adopts the following technical scheme: the invention relates to a phase change electric excitation device, which comprises an electric heating excitation tube and a pressure difference control type quick switch valve, wherein the electric heating excitation tube comprises a tube body, the inner cavity of the tube body is used for containing a liquid phase object, a liquid phase inlet is arranged on the tube body, one end of the tube body is provided with a gas phase outlet, the liquid phase object is injected into the inner cavity of the tube body to enable the liquid phase object to be in a supercritical state.
Specific embodiments of the phase change electro-active device of the present invention:
The structure schematic diagram of the phase change electric excitation device of the invention is shown in fig. 2-7, and the phase change electric excitation device comprises an electric heating excitation tube, wherein the electric heating excitation tube comprises a tube body, and the inner cavity of the tube body needs to hold a liquid phase object, so that the liquid phase object is subjected to phase change to generate high-pressure air to flush the tube body, the tube body is provided with a liquid phase inlet 6 for injecting the liquid phase object, one end of the tube body is provided with a gas phase outlet, the embodiment uses carbon dioxide as the liquid phase object for development, and of course, in other embodiments, other liquid phase objects such as freon can be adopted for carrying out phase change reaction.
The electric heating element is arranged in the inner cavity of the tube body and is used for heating liquid-phase carbon dioxide, and the liquid-phase carbon dioxide is subjected to phase change under the action of high temperature, and the electric heating element can directly heat the liquid-phase matters to enable the liquid-phase matters to be subjected to phase change, so that after the liquid-phase matters are subjected to phase change, a gas gun is emitted, only a new liquid-phase matters are needed to be added for electric heating to carry out next phase change, the emission efficiency is improved, and the operation is more convenient.
In order to further ensure the balance of the heating process of the inner cavity of the pipe body in the axial direction, the gas-phase carbon dioxide impact reliability of the gas gun is better, preferably, the electric heating element extends along the axial direction of the inner cavity of the pipe body and extends from the first end of the inner cavity of the pipe body to the second end of the inner cavity of the pipe body or the position close to the second end of the inner cavity of the pipe body, so that the liquid-phase carbon dioxide can be heated simultaneously in the axial direction of the liquid-phase matters in the inner cavity of the pipe body under the action of the electric heating element, the time of the liquid-phase carbon dioxide in the axial direction is kept consistent, the stable reliability of the expansion of the gas-phase carbon dioxide is ensured, and the impact reliability of the gas gun is ensured.
As shown in fig. 1, this embodiment adopts the electric heating mode to carry out the phase transition process, therefore the electric heating excitation tube specifically still is equipped with power, master control case, remote control case, the power is high-power battery box, power supply to the electric heating excitation tube through the master control case, the remote control case is equipped with the charger, the remote control case links to each other with the master control case and can adjust the output of battery box through the PWM signal of output, the electric heating excitation tube still is furnished with pressure sensor and liquid phase device, be connected with the master control case respectively and control through the master control case, the liquid phase device annotates the liquid to the electric heating excitation tube.
In order to improve the impact effect of gaseous carbon dioxide expansion and improve the heating contact surface to liquid carbon dioxide, preferably, the body tip has outlet end cover 1 for the body inner chamber is comparatively sealed, and the radiating effect is slow, and the gaseous phase export is the venthole 7 of setting on outlet end cover 1, discharges gaseous carbon dioxide through venthole 7, and impact effect is better, and electric heating element distributes around each venthole 7, and electric heating element heats liquid carbon dioxide from diversified like this, and electric heating element increases with liquid carbon dioxide area of contact, has wholly improved the heating rate to liquid carbon dioxide. Of course, in other embodiments, the end of the tube may be an open structure, and the gaseous carbon dioxide may be directly discharged through the opening at the end of the tube.
Because the electric heating element is in liquid carbon dioxide for a long time and needs to bear a certain high temperature and high pressure state, the structural strength of the electric heating element needs to be improved while the heat conduction and electric conduction effects of the electric heating element are ensured, preferably, the electric heating element comprises a plurality of groups of heating rods 2, the heating rods 2 comprise titanium alloy rod bodies 8 which axially extend along the inner cavity of the tube body, the structural strength of the titanium alloy rod bodies 8 is high, and the titanium alloy material is heat-resistant and corrosion-resistant, so that the overall structural stability of the electric heating element is high. Of course, in other embodiments, the electric heating element may also include a rod made of other metal alloy materials such as tungsten alloy or nickel alloy.
In order to further improve the heating reliability and the structural strength of the titanium alloy rod body 8, preferably, two ends of the titanium alloy rod body 8 are respectively fixed at two ends of the pipe body, so that the structural stability of the titanium alloy rod body 8 is ensured, the service life is prolonged, and the rod body cannot shake in the use process. Specifically, the two ends of the titanium alloy rod body 8 are respectively connected with the two ends of the pipe body through red copper connecting sheets, and specifically, the two ends are connected in a brazing welding mode, so that good conductivity and mechanical strength are ensured.
Of course, in other embodiments, when the length of the tube body is shorter, a mode of fixedly connecting one end of the titanium alloy rod body 8 can be adopted to ensure the structural strength of the tube body, specifically, one end of the titanium alloy rod body 8 is fixedly connected to one end of the tube body, the other end extends to the position as close to the other end of the tube body as possible, and the sufficient heating of the liquid carbon dioxide in the axial direction is ensured as much as possible; or when the end of the pipe body is open, one end of the titanium alloy rod body 8 is bent to a position of the pipe body close to the end of the pipe body for fixing.
The titanium alloy rod body has a larger resistance although providing a better structural strength, and a basic heat conduction effect can be ensured, but the heat conduction effect is relatively poor, so that in order to further enhance the heat conduction performance of the electric heating element, preferably, the electric heating element further comprises a heat conduction member arranged on the titanium alloy rod body 8, the heat conduction member improves the heat conduction effect of the electric heating element, improves the heat transfer rate to liquid-phase carbon dioxide, and improves the heating rate, so that the impact and the speed of expansion of the gas-phase carbon dioxide are faster.
Specifically, a plurality of annular grooves are formed in the titanium alloy rod body 8, the annular grooves are uniformly distributed along the length direction of the titanium alloy rod body 8, and the heat conducting piece is a copper ring 9 arranged in the annular groove and is cast in the annular groove in a casting molding mode. . The titanium alloy rod body 8 is added with the heat conducting ring, so that the whole structure of the heating rod 2 is complete, the manufacturing is convenient, and the structural strength of the whole heating rod 2 is improved. The copper material has better heat conduction performance and electric conduction performance, can further enhance the heat conduction performance and electric conduction performance of the titanium alloy rod body 8, improve the heating rate, improve the expansion reliability of gas-phase carbon dioxide, and ensure better combination of the copper ring 9 and the titanium alloy rod body 8 by casting molding, ensure better structural reliability and improve the mechanical strength of the heating rod 2.
Of course, in other embodiments, a layer of heat conducting layer may be plated on the titanium alloy rod body 8, or a long groove is formed in the length direction of the titanium alloy rod body 8, and a long strip heat conducting strip arranged along the long groove is used to enhance the heat conducting effect. Or in other embodiments, the heat conducting member may be made of other materials with better heat conducting performance, such as aluminum rings. In addition, or in other embodiments, the copper ring 9 can be welded on the titanium alloy rod body 8, and good structural strength can be achieved.
In order to improve the use effect of the pipe body, the heating rate of the liquid-phase carbon dioxide in the pipe body is higher, preferably, the pipe body comprises a metal shell and a ceramic pipe body arranged in the metal shell, the outlet end cover 1 is a ceramic end cover arranged at the end part of the ceramic pipe body, the ceramic pipe body and the ceramic end cover form a ceramic heat insulation layer 3, so that the liquid-phase carbon dioxide is positioned in the ceramic heat insulation layer 3, a good heat preservation effect is achieved, internal heat dissipation is reduced, and the specific ceramic heat insulation layer 3 is a zirconia ceramic heat insulation layer. In this embodiment, the metal casing includes the excitation pipe body 11 of front end and the excitation filling assembly 12 of rear end, and excitation pipe body 11 and excitation filling assembly 12 are provided with the screw thread section, and both are through threaded connection, are provided with the sealing washer between excitation pipe body 11 and the excitation filling assembly 12 and realize sealed effect, and the gas phase export sets up in excitation pipe body 11 department, and liquid phase entry 6 sets up in excitation filling assembly 12 department. The ceramic heat insulation layer 3 is provided with a plug 13, and the plug 13 is connected with a power supply and communicated with the heating rod 2 to supply power to the heating rod 2 for heating.
The common valve or the sealing cover is arranged at the liquid phase inlet 6, so that the tightness in the use process can be ensured, but in order to improve the use convenience, the time and the labor are saved, preferably, the one-way valve 5 is arranged at the liquid phase inlet 6, the one-way valve 5 has an automatic opening and closing function, no personnel operation is needed, the tightness is good, and the use is flexible.
After each emission, since the inside of the electric heating excitation tube is still in a high-temperature environment, in order to keep the state of the inside of the tube consistent as soon as possible each time the electric heating excitation tube is filled with liquid carbon dioxide, the liquid phase inlet 6 comprises a liquid phase material injection port 14 and a cooling liquid injection port 15. Therefore, cooling liquid can be immediately fed into the tube body cavity to cool after each emission is completed, liquid phase matters can not be extruded into the tube body cavity in advance, the phase change can be caused in advance, the reliability of the next phase change is improved, and the time waiting for cooling can be shortened.
Correspondingly, the liquid phase device comprises a filling device and a cooling device, the filling device is used for containing liquid phase carbon dioxide, the filling device is used for injecting the liquid phase carbon dioxide into the electric heating excitation tube through the liquid phase material injection opening 14, the cooling device is used for injecting the cooling liquid into the cooling liquid injection opening 15 of the electric heating excitation tube through the cooling liquid in the cooling device, the cooling liquid is added after each time of emission, and after cooling is completed, the liquid phase carbon dioxide is injected again for the next phase change process.
The phase change electricity excitation device further comprises a differential pressure control type quick switch valve, and specifically the differential pressure control type quick switch valve comprises a valve body 4, the valve body 4 comprises an outer cylinder 17, a front sealing plate 16 and a rear sealing plate 19, a valve core 22 is arranged between the front sealing plate 16 and the rear sealing plate 19, a gun muzzle 27 is arranged on the front sealing plate 16, the front end of the valve core 22 is in conical surface fit with the gun muzzle 27 of the front sealing plate 16, the rear end of the valve core 22 is in sliding fit with the outer cylinder 17, a sealing ring 18 is arranged between the valve core 22 and the outer cylinder 17, a buffer rod 23, a buffer spring 20 and a taper bolt 25 are sequentially arranged in the rear sealing plate 19 in the direction close to the outer cylinder 17, a gas injection port 21 and an exhaust port 24 are arranged on the rear sealing plate 19, and an inlet valve 26 is arranged on the gas injection port 21.
The differential pressure control type quick switching valve further comprises a gas valve inlet 28 which is communicated with a gas phase outlet of the electric heating excitation tube, the valve body 4 is horizontally arranged, the gas valve inlet 28 is positioned on the lower wall of the outer barrel 17, the valve core 22 is horizontally arranged in the valve body 4, the areas of the two horizontal ends of the valve core 22 are different, pressure difference is generated after supercritical carbon dioxide enters the valve body 4, when the pressure difference is larger than the gas pressure at the tail part of the valve, the valve core 22 moves backwards, the buffer rod 23 is driven to move backwards synchronously after contacting the buffer rod 23, the exhaust port 24 is opened, the pressure at the tail part of the valve is reduced, and the valve core 22 is separated from the gun port 27 to be in an open state. When the excitation is completed, the buffer rod 23 moves forward by the spring to close the exhaust port 24, and at this time, the cooling liquid is injected from the cooling liquid injection port 15 and discharged from the muzzle 27. After cooling is completed, gas with certain pressure is injected through the gas injection port 21, and the valve core 22 moves forward to close the muzzle 27 and wait for next excitation.
Through the description of the specific embodiment of the phase-change electric excitation device, the phase-change electric excitation device injects liquid phase into the inner cavity of the pipe body through the liquid phase inlet, directly heats the liquid phase through the electric heating element in the inner cavity of the pipe body, so that the liquid phase is subjected to phase change and enters a supercritical state, and the electric heating element can directly heat the liquid phase to cause the liquid phase to be subjected to phase change, so that after the liquid phase is subjected to phase change, a gas gun is emitted, only new liquid phase is needed to be added for carrying out electric heating to carry out next phase change, chemical heating agent is not needed to be replaced, the gas phase outlet of the electric heating excitation pipe is controlled through the differential pressure control type quick switch valve, the electric heating excitation pipe is automatically opened and closed according to the differential pressure, a rupture disc is not needed to be replaced, the continuous emission efficiency is integrally improved, the operation is more convenient, the working efficiency is improved, and the use operation process is safe and reliable.
The embodiment of the electric heating excitation tube of the present invention is the same as that of the electric heating excitation tube in the phase-change electric excitation device described above, and thus will not be described.
The above description is only a preferred embodiment of the present invention, and the patent protection scope of the present invention is defined by the claims, and all equivalent structural changes made by the specification and the drawings of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The electric heating excitation tube comprises a tube body, wherein the inner cavity of the tube body is used for containing liquid phase objects, a liquid phase inlet is formed in the tube body, and a gas phase outlet is formed in one end of the tube body.
2. An electrically heated excitation tube as claimed in claim 1 wherein the electrical heating element extends axially along the tube body lumen and from a first end of the tube body lumen to a second end of the tube body lumen or a location adjacent the second end so that the electrical heating element can simultaneously heat a liquid phase of the tube body lumen in an axial direction.
3. The electrically heated excitation tube of claim 2, wherein the tube body end has an outlet end cap, the gas phase outlet is an outlet port disposed on the outlet end cap, and the electrical heating elements are distributed around each outlet port.
4. An electrically heated excitation tube as claimed in any of claims 1 to 3 wherein the electrical heating element comprises a titanium alloy rod extending axially along the lumen of the tube body.
5. The electric heating excitation tube of claim 4, wherein the two ends of the titanium alloy rod body are respectively fixed at the two ends of the tube body.
6. The electrically heated excitation tube of claim 4, wherein the electrical heating element further comprises a thermally conductive member disposed on the titanium alloy rod.
7. The electric heating excitation tube according to claim 6, wherein the titanium alloy rod body is provided with a plurality of annular grooves uniformly distributed along the length direction thereof, and the heat conducting member is a copper ring cast in the annular grooves.
8. An electrically heated excitation tube as claimed in claim 3 wherein the tube body comprises a metal housing and a ceramic tube body mounted within the metal housing, the outlet end cap being a ceramic end cap mounted to an end of the ceramic tube body.
9. An electrically heated excitation tube according to claim 1, wherein the liquid phase inlet is provided with a one-way valve.
10. A phase change electric excitation device, which is characterized by comprising an electric heating excitation tube and a pressure difference control type quick switching valve, wherein the electric heating excitation tube is an electric heating excitation tube according to any one of claims 1-9, the pressure difference control type quick switching valve comprises a gas valve inlet, a muzzle and a valve core, the gas valve inlet is communicated with a gas phase outlet of the electric heating excitation tube, and the valve core is used for stopping or avoiding the muzzle under the action of pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410321671.1A CN118049892A (en) | 2024-03-20 | 2024-03-20 | Electric heating excitation tube and phase-change electric excitation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410321671.1A CN118049892A (en) | 2024-03-20 | 2024-03-20 | Electric heating excitation tube and phase-change electric excitation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118049892A true CN118049892A (en) | 2024-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410321671.1A Pending CN118049892A (en) | 2024-03-20 | 2024-03-20 | Electric heating excitation tube and phase-change electric excitation device |
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2024
- 2024-03-20 CN CN202410321671.1A patent/CN118049892A/en active Pending
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